blob: 25ad39a52ecd1dcf1d0df6a78cc5a7e8c16aebea [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
John Stultz5cfc8ee2010-03-24 00:22:36 +0000387 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100388 select CPU_FA526
Russell King171b3f02013-09-12 21:24:42 +0100389 select NEED_MACH_GPIO_H
Russell King788c9702009-04-26 14:21:59 +0100390 help
391 Support for the Cortina Systems Gemini family SoCs
392
Linus Torvalds1da177e2005-04-16 15:20:36 -0700393config ARCH_EBSA110
394 bool "EBSA-110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100395 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000396 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100397 select ISA
Rob Herringc334bc12012-03-04 22:03:33 -0600398 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400399 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100400 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700401 help
402 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000403 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700404 Ethernet interface, two PCMCIA sockets, two serial ports and a
405 parallel port.
406
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000407config ARCH_EP93XX
408 bool "EP93xx-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100409 select ARCH_HAS_HOLES_MEMORYMODEL
410 select ARCH_REQUIRE_GPIOLIB
411 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000412 select ARM_AMBA
413 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100414 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100415 select CPU_ARM920T
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100416 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000417 help
418 This enables support for the Cirrus EP93xx series of CPUs.
419
Linus Torvalds1da177e2005-04-16 15:20:36 -0700420config ARCH_FOOTBRIDGE
421 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000422 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700423 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000424 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200425 select HAVE_IDE
Rob Herring8ef6e622012-03-01 20:48:12 -0600426 select NEED_MACH_IO_H if !MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400427 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000428 help
429 Support for systems based on the DC21285 companion chip
430 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700431
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100432config ARCH_NETX
433 bool "Hilscher NetX based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100434 select ARM_VIC
Russell King234b6ced2011-05-08 14:09:47 +0100435 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000436 select CPU_ARM926T
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100437 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000438 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100439 This enables support for systems based on the Hilscher NetX Soc
440
Russell King3b938be2007-05-12 11:25:44 +0100441config ARCH_IOP13XX
442 bool "IOP13xx-based"
443 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100444 select CPU_XSC3
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400445 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600446 select NEED_RET_TO_USER
Russell Kingb1b3f492012-10-06 17:12:25 +0100447 select PCI
448 select PLAT_IOP
449 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100450 help
451 Support for Intel's IOP13XX (XScale) family of processors.
452
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100453config ARCH_IOP32X
454 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100455 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100456 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000457 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500458 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600459 select NEED_RET_TO_USER
Russell Kingf7e68bb2005-05-05 14:49:01 +0100460 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100461 select PLAT_IOP
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000462 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100463 Support for Intel's 80219 and IOP32X (XScale) family of
464 processors.
465
466config ARCH_IOP33X
467 bool "IOP33x-based"
468 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100469 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000470 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500471 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600472 select NEED_RET_TO_USER
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100473 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100474 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100475 help
476 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700477
Russell King3b938be2007-05-12 11:25:44 +0100478config ARCH_IXP4XX
479 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100480 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500481 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell Kingb1b3f492012-10-06 17:12:25 +0100482 select ARCH_REQUIRE_GPIOLIB
Russell King234b6ced2011-05-08 14:09:47 +0100483 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000484 select CPU_XSCALE
Russell Kingb1b3f492012-10-06 17:12:25 +0100485 select DMABOUNCE if PCI
Russell King3b938be2007-05-12 11:25:44 +0100486 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100487 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600488 select NEED_MACH_IO_H
Florian Fainelli9296d942013-04-09 14:29:26 +0200489 select USB_EHCI_BIG_ENDIAN_DESC
Russell King171b3f02013-09-12 21:24:42 +0100490 select USB_EHCI_BIG_ENDIAN_MMIO
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100491 help
Russell King3b938be2007-05-12 11:25:44 +0100492 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100493
Saeed Bisharaedabd382009-08-06 15:12:43 +0300494config ARCH_DOVE
495 bool "Marvell Dove"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300496 select ARCH_REQUIRE_GPIOLIB
Sebastian Hesselbarth756b2532013-05-02 19:56:12 +0100497 select CPU_PJ4
Saeed Bisharaedabd382009-08-06 15:12:43 +0300498 select GENERIC_CLOCKEVENTS
Russell King0f81bd42012-09-09 20:34:13 +0100499 select MIGHT_HAVE_PCI
Russell King171b3f02013-09-12 21:24:42 +0100500 select MVEBU_MBUS
Sebastian Hesselbarth9139acd2012-11-19 10:39:55 +0100501 select PINCTRL
502 select PINCTRL_DOVE
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200503 select PLAT_ORION_LEGACY
Russell King0f81bd42012-09-09 20:34:13 +0100504 select USB_ARCH_HAS_EHCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300505 help
506 Support for the Marvell Dove SoC 88AP510
507
Saeed Bishara651c74c2008-06-22 22:45:06 +0200508config ARCH_KIRKWOOD
509 bool "Marvell Kirkwood"
Andrew Lunn0e2ee0c2013-01-27 11:07:23 +0100510 select ARCH_HAS_CPUFREQ
Erik Benadaa8865652009-05-28 17:08:55 -0700511 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100512 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200513 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100514 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100515 select PCI
Jason Gunthorpe1dc831b2012-11-21 00:19:06 -0700516 select PCI_QUIRKS
Andrew Lunnf9e75922012-11-17 17:00:44 +0100517 select PINCTRL
518 select PINCTRL_KIRKWOOD
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200519 select PLAT_ORION_LEGACY
Saeed Bishara651c74c2008-06-22 22:45:06 +0200520 help
521 Support for the following Marvell Kirkwood series SoCs:
522 88F6180, 88F6192 and 88F6281.
523
Russell King788c9702009-04-26 14:21:59 +0100524config ARCH_MV78XX0
525 bool "Marvell MV78xx0"
Erik Benadaa8865652009-05-28 17:08:55 -0700526 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100527 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100528 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100529 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100530 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200531 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100532 help
533 Support for the following Marvell MV78xx0 series SoCs:
534 MV781x0, MV782x0.
535
536config ARCH_ORION5X
537 bool "Marvell Orion"
538 depends on MMU
Erik Benadaa8865652009-05-28 17:08:55 -0700539 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100540 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100541 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100542 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100543 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200544 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100545 help
546 Support for the following Marvell Orion 5x series SoCs:
547 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
548 Orion-2 (5281), Orion-1-90 (6183).
549
550config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500551 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100552 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100553 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100554 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100555 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100556 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800557 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800558 select IRQ_DOMAIN
Haojian Zhuang0f374562013-04-21 16:53:02 +0800559 select MULTI_IRQ_HANDLER
Russell Kingb1b3f492012-10-06 17:12:25 +0100560 select NEED_MACH_GPIO_H
Axel Lin7c8f86a2012-11-28 14:42:35 +0800561 select PINCTRL
Russell King788c9702009-04-26 14:21:59 +0100562 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400563 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100564 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500565 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100566
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100567config ARCH_KS8695
568 bool "Micrel/Kendin KS8695"
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100569 select ARCH_REQUIRE_GPIOLIB
Linus Walleijc7e783d2012-08-29 20:27:22 +0200570 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100571 select CPU_ARM922T
Linus Walleijc7e783d2012-08-29 20:27:22 +0200572 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100573 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100574 help
575 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
576 System-on-Chip devices.
577
Russell King788c9702009-04-26 14:21:59 +0100578config ARCH_W90X900
579 bool "Nuvoton W90X900 CPU"
wanzongshunc52d3d62009-06-10 15:49:32 +0100580 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100581 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100582 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100583 select CPU_ARM926T
wanzongshun58b53692009-08-14 15:36:44 +0100584 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200585 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100586 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
587 At present, the w90x900 has been renamed nuc900, regarding
588 the ARM series product line, you can login the following
589 link address to know more.
590
591 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
592 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400593
Russell King93e22562012-10-12 14:20:52 +0100594config ARCH_LPC32XX
595 bool "NXP LPC32XX"
596 select ARCH_REQUIRE_GPIOLIB
597 select ARM_AMBA
Russell King40737232011-01-06 22:32:52 +0000598 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100599 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100600 select CPU_ARM926T
601 select GENERIC_CLOCKEVENTS
602 select HAVE_IDE
603 select HAVE_PWM
604 select USB_ARCH_HAS_OHCI
605 select USE_OF
606 help
607 Support for the NXP LPC32XX family of processors
608
Linus Torvalds1da177e2005-04-16 15:20:36 -0700609config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700610 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100611 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100612 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100613 select ARCH_MTD_XIP
614 select ARCH_REQUIRE_GPIOLIB
615 select ARM_CPU_SUSPEND if PM
616 select AUTO_ZRELADDR
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100617 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100618 select CLKSRC_MMIO
Eric Miao981d0f32007-07-24 01:22:43 +0100619 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800620 select GPIO_PXA
Russell Kingb1b3f492012-10-06 17:12:25 +0100621 select HAVE_IDE
622 select MULTI_IRQ_HANDLER
623 select NEED_MACH_GPIO_H
Eric Miaobd5ce432009-01-20 12:06:01 +0800624 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800625 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000626 help
eric miao2c8086a2007-09-11 19:13:17 -0700627 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700628
Russell King788c9702009-04-26 14:21:59 +0100629config ARCH_MSM
630 bool "Qualcomm MSM"
Pavel Machek923a0812010-06-02 11:11:12 -0700631 select ARCH_REQUIRE_GPIOLIB
Stephen Boydc6025202013-07-24 13:54:30 -0700632 select CLKSRC_OF if OF
Stephen Boyd8cc7f532013-06-17 10:43:19 -0700633 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100634 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800635 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800636 Support for Qualcomm MSM/QSD based systems. This runs on the
637 apps processor of the MSM/QSD and depends on a shared memory
638 interface to the modem processor which runs the baseband
639 stack and controls some vital subsystems
640 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800641
Magnus Dammc793c1b2010-02-05 11:14:49 +0000642config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900643 bool "Renesas SH-Mobile / R-Mobile"
Magnus Damm69469992013-06-10 18:46:47 +0900644 select ARM_PATCH_PHYS_VIRT
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900645 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100646 select GENERIC_CLOCKEVENTS
Stephen Boyd4c3ffff2013-02-27 15:28:14 -0800647 select HAVE_ARM_SCU if SMP
Stephen Boyda894fcc2013-02-15 16:02:20 -0800648 select HAVE_ARM_TWD if SMP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900649 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000650 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000651 select MIGHT_HAVE_CACHE_L2X0
Magnus Damm60f14352010-12-28 08:26:52 +0000652 select MULTI_IRQ_HANDLER
Russell Kingb1b3f492012-10-06 17:12:25 +0100653 select NO_IOPORT
Laurent Pinchart2cd3c922013-05-31 05:00:27 +0200654 select PINCTRL
Russell Kingb1b3f492012-10-06 17:12:25 +0100655 select PM_GENERIC_DOMAINS if PM
656 select SPARSE_IRQ
Magnus Dammc793c1b2010-02-05 11:14:49 +0000657 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900658 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000659
Linus Torvalds1da177e2005-04-16 15:20:36 -0700660config ARCH_RPC
661 bool "RiscPC"
662 select ARCH_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100663 select ARCH_MAY_HAVE_PC_FDC
Russell King07f841b2008-10-01 17:11:06 +0100664 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000665 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100666 select FIQ
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200667 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100668 select HAVE_PATA_PLATFORM
669 select ISA_DMA_API
Rob Herringc334bc12012-03-04 22:03:33 -0600670 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400671 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100672 select NO_IOPORT
Arnd Bergmannb4811ba2013-03-13 17:36:37 +0100673 select VIRT_TO_BUS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700674 help
675 On the Acorn Risc-PC, Linux can support the internal IDE disk and
676 CD-ROM interface, serial and parallel port, and the floppy drive.
677
678config ARCH_SA1100
679 bool "SA1100-based"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100680 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100681 select ARCH_MTD_XIP
Michael Buesch7444a722008-07-25 01:46:11 -0700682 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100683 select ARCH_SPARSEMEM_ENABLE
684 select CLKDEV_LOOKUP
685 select CLKSRC_MMIO
686 select CPU_FREQ
687 select CPU_SA1100
688 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200689 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100690 select ISA
Rob Herring01464222012-08-28 13:06:41 -0500691 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400692 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100693 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000694 help
695 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700696
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900697config ARCH_S3C24XX
698 bool "Samsung S3C24XX SoCs"
Ben Dooks9d56c022009-07-30 23:23:25 +0100699 select ARCH_HAS_CPUFREQ
Kukjin Kim53650432013-04-04 09:04:30 +0900700 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100701 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200702 select CLKSRC_SAMSUNG_PWM
Romain Naour7f78b6e2013-01-09 18:47:04 -0800703 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900704 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900705 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900706 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100707 select HAVE_S3C_RTC if RTC_CLASS
Heiko Stuebner17453dd2013-03-07 12:38:25 +0900708 select MULTI_IRQ_HANDLER
Rob Herring01464222012-08-28 13:06:41 -0500709 select NEED_MACH_GPIO_H
Rob Herringc334bc12012-03-04 22:03:33 -0600710 select NEED_MACH_IO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900711 select SAMSUNG_ATAGS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700712 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900713 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
714 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
715 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
716 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900717
Ben Dooksa08ab632008-10-21 14:06:39 +0100718config ARCH_S3C64XX
719 bool "Samsung S3C64XX"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100720 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900721 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100722 select ARM_VIC
723 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200724 select CLKSRC_SAMSUNG_PWM
Russell Kingb1b3f492012-10-06 17:12:25 +0100725 select CPU_V6
Romain Naour04a49b72013-01-09 18:47:04 -0800726 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900727 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900728 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900729 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100730 select HAVE_TCM
Rob Herring01464222012-08-28 13:06:41 -0500731 select NEED_MACH_GPIO_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100732 select NO_IOPORT
733 select PLAT_SAMSUNG
Tomasz Figa6e2d9e92013-10-06 09:06:27 +0900734 select PM_GENERIC_DOMAINS
Russell Kingb1b3f492012-10-06 17:12:25 +0100735 select S3C_DEV_NAND
736 select S3C_GPIO_TRACK
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900737 select SAMSUNG_ATAGS
Russell Kingb1b3f492012-10-06 17:12:25 +0100738 select SAMSUNG_CLKSRC
739 select SAMSUNG_GPIOLIB_4BIT
Tomasz Figa6e2d9e92013-10-06 09:06:27 +0900740 select SAMSUNG_WAKEMASK
Tomasz Figa88f59732013-06-17 23:45:37 +0900741 select SAMSUNG_WDT_RESET
Russell Kingb1b3f492012-10-06 17:12:25 +0100742 select USB_ARCH_HAS_OHCI
Ben Dooksa08ab632008-10-21 14:06:39 +0100743 help
744 Samsung S3C64XX series based systems
745
Kukjin Kim49b7a492010-09-07 15:47:18 +0900746config ARCH_S5P64X0
747 bool "Samsung S5P6440 S5P6450"
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900748 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200749 select CLKSRC_SAMSUNG_PWM
Russell Kingb1b3f492012-10-06 17:12:25 +0100750 select CPU_V6
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900751 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900752 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900753 select HAVE_S3C2410_I2C if I2C
Russell Kingb1b3f492012-10-06 17:12:25 +0100754 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim754961a2010-11-13 16:11:46 +0900755 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500756 select NEED_MACH_GPIO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900757 select SAMSUNG_ATAGS
Russell King171b3f02013-09-12 21:24:42 +0100758 select SAMSUNG_WDT_RESET
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900759 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900760 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
761 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900762
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200763config ARCH_S5PC100
764 bool "Samsung S5PC100"
Kukjin Kim53650432013-04-04 09:04:30 +0900765 select ARCH_REQUIRE_GPIOLIB
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900766 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200767 select CLKSRC_SAMSUNG_PWM
Byungho Min5a7652f2009-06-23 21:39:42 +0900768 select CPU_V7
Romain Naour6a5a2e32013-01-09 18:47:04 -0800769 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900770 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900771 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900772 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100773 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500774 select NEED_MACH_GPIO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900775 select SAMSUNG_ATAGS
Russell King171b3f02013-09-12 21:24:42 +0100776 select SAMSUNG_WDT_RESET
Byungho Min5a7652f2009-06-23 21:39:42 +0900777 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200778 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900779
Kukjin Kim170f4e42010-02-24 16:40:44 +0900780config ARCH_S5PV210
781 bool "Samsung S5PV210/S5PC110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100782 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900783 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100784 select ARCH_SPARSEMEM_ENABLE
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900785 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200786 select CLKSRC_SAMSUNG_PWM
Russell Kingb1b3f492012-10-06 17:12:25 +0100787 select CPU_V7
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900788 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900789 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900790 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900791 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100792 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500793 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400794 select NEED_MACH_MEMORY_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900795 select SAMSUNG_ATAGS
Kukjin Kim170f4e42010-02-24 16:40:44 +0900796 help
797 Samsung S5PV210/S5PC110 series based systems
798
Kukjin Kim83014572011-11-06 13:54:56 +0900799config ARCH_EXYNOS
Russell King93e22562012-10-12 14:20:52 +0100800 bool "Samsung EXYNOS"
Russell Kingb1b3f492012-10-06 17:12:25 +0100801 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900802 select ARCH_HAS_HOLES_MEMORYMODEL
Tomasz Figae245f962013-06-19 01:26:42 +0900803 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100804 select ARCH_SPARSEMEM_ENABLE
Tomasz Figae245f962013-06-19 01:26:42 +0900805 select ARM_GIC
Olof Johansson340fcb52013-04-26 11:47:45 -0700806 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100807 select CPU_V7
808 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900809 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900810 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100811 select HAVE_S3C_RTC if RTC_CLASS
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400812 select NEED_MACH_MEMORY_H
Tomasz Figa6e726ea2013-06-15 09:28:55 +0900813 select SPARSE_IRQ
Tomasz Figaf8b1ac02013-06-15 09:01:11 +0900814 select USE_OF
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900815 help
Kukjin Kim83014572011-11-06 13:54:56 +0900816 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900817
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100818config ARCH_DAVINCI
819 bool "TI DaVinci"
Russell Kingb1b3f492012-10-06 17:12:25 +0100820 select ARCH_HAS_HOLES_MEMORYMODEL
David Brownelldce11152008-09-07 23:41:04 -0700821 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100822 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700823 select GENERIC_ALLOCATOR
Russell Kingb1b3f492012-10-06 17:12:25 +0100824 select GENERIC_CLOCKEVENTS
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100825 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100826 select HAVE_IDE
Rob Herring01464222012-08-28 13:06:41 -0500827 select NEED_MACH_GPIO_H
Matt Porter3ad7a422013-03-06 11:15:31 -0500828 select TI_PRIV_EDMA
Sekhar Nori689e3312012-08-28 15:27:52 +0530829 select USE_OF
Russell Kingb1b3f492012-10-06 17:12:25 +0100830 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100831 help
832 Support for TI's DaVinci platform.
833
Tony Lindgrena0694862013-01-11 11:24:20 -0800834config ARCH_OMAP1
835 bool "TI OMAP1"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600836 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100837 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100838 select ARCH_HAS_HOLES_MEMORYMODEL
Tony Lindgrena0694862013-01-11 11:24:20 -0800839 select ARCH_OMAP
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100840 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200841 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100842 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100843 select GENERIC_CLOCKEVENTS
Tony Lindgrena0694862013-01-11 11:24:20 -0800844 select GENERIC_IRQ_CHIP
Tony Lindgrena0694862013-01-11 11:24:20 -0800845 select HAVE_IDE
846 select IRQ_DOMAIN
847 select NEED_MACH_IO_H if PCCARD
848 select NEED_MACH_MEMORY_H
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100849 help
Tony Lindgrena0694862013-01-11 11:24:20 -0800850 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
Binghua Duan02c981c2011-07-08 17:40:12 +0800851
Linus Torvalds1da177e2005-04-16 15:20:36 -0700852endchoice
853
Rob Herring387798b2012-09-06 13:41:12 -0500854menu "Multiple platform selection"
855 depends on ARCH_MULTIPLATFORM
856
857comment "CPU Core family selection"
858
Rob Herring387798b2012-09-06 13:41:12 -0500859config ARCH_MULTI_V4T
860 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500861 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100862 select ARCH_MULTI_V4_V5
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200863 select CPU_ARM920T if !(CPU_ARM7TDMI || CPU_ARM720T || \
864 CPU_ARM740T || CPU_ARM9TDMI || CPU_ARM922T || \
865 CPU_ARM925T || CPU_ARM940T)
Rob Herring387798b2012-09-06 13:41:12 -0500866
867config ARCH_MULTI_V5
868 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500869 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100870 select ARCH_MULTI_V4_V5
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200871 select CPU_ARM926T if (!CPU_ARM946E || CPU_ARM1020 || \
872 CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || \
873 CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_FEROCEON)
Rob Herring387798b2012-09-06 13:41:12 -0500874
875config ARCH_MULTI_V4_V5
876 bool
877
878config ARCH_MULTI_V6
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800879 bool "ARMv6 based platforms (ARM11)"
Rob Herring387798b2012-09-06 13:41:12 -0500880 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100881 select CPU_V6
Rob Herring387798b2012-09-06 13:41:12 -0500882
883config ARCH_MULTI_V7
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800884 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -0500885 default y
886 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100887 select CPU_V7
Rob Herring387798b2012-09-06 13:41:12 -0500888
889config ARCH_MULTI_V6_V7
890 bool
891
892config ARCH_MULTI_CPU_AUTO
893 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
894 select ARCH_MULTI_V5
895
896endmenu
897
Russell Kingccf50e22010-03-15 19:03:06 +0000898#
899# This is sorted alphabetically by mach-* pathname. However, plat-*
900# Kconfigs may be included either alphabetically (according to the
901# plat- suffix) or along side the corresponding mach-* source.
902#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +0200903source "arch/arm/mach-mvebu/Kconfig"
904
Russell King95b8f202010-01-14 11:43:54 +0000905source "arch/arm/mach-at91/Kconfig"
906
Christian Daudt8ac49e02012-11-19 09:46:10 -0800907source "arch/arm/mach-bcm/Kconfig"
908
Stephen Warrenf1ac9222013-03-11 22:40:18 -0600909source "arch/arm/mach-bcm2835/Kconfig"
910
Linus Torvalds1da177e2005-04-16 15:20:36 -0700911source "arch/arm/mach-clps711x/Kconfig"
912
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300913source "arch/arm/mach-cns3xxx/Kconfig"
914
Russell King95b8f202010-01-14 11:43:54 +0000915source "arch/arm/mach-davinci/Kconfig"
916
917source "arch/arm/mach-dove/Kconfig"
918
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000919source "arch/arm/mach-ep93xx/Kconfig"
920
Linus Torvalds1da177e2005-04-16 15:20:36 -0700921source "arch/arm/mach-footbridge/Kconfig"
922
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200923source "arch/arm/mach-gemini/Kconfig"
924
Rob Herring387798b2012-09-06 13:41:12 -0500925source "arch/arm/mach-highbank/Kconfig"
926
Linus Torvalds1da177e2005-04-16 15:20:36 -0700927source "arch/arm/mach-integrator/Kconfig"
928
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100929source "arch/arm/mach-iop32x/Kconfig"
930
931source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700932
Dan Williams285f5fa2006-12-07 02:59:39 +0100933source "arch/arm/mach-iop13xx/Kconfig"
934
Linus Torvalds1da177e2005-04-16 15:20:36 -0700935source "arch/arm/mach-ixp4xx/Kconfig"
936
Santosh Shilimkar828989a2013-06-10 11:27:13 -0400937source "arch/arm/mach-keystone/Kconfig"
938
Russell King95b8f202010-01-14 11:43:54 +0000939source "arch/arm/mach-kirkwood/Kconfig"
940
941source "arch/arm/mach-ks8695/Kconfig"
942
Russell King95b8f202010-01-14 11:43:54 +0000943source "arch/arm/mach-msm/Kconfig"
944
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200945source "arch/arm/mach-mv78xx0/Kconfig"
946
Shawn Guo3995eb82012-09-13 19:48:07 +0800947source "arch/arm/mach-imx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700948
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800949source "arch/arm/mach-mxs/Kconfig"
950
Russell King95b8f202010-01-14 11:43:54 +0000951source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800952
Russell King95b8f202010-01-14 11:43:54 +0000953source "arch/arm/mach-nomadik/Kconfig"
Russell King95b8f202010-01-14 11:43:54 +0000954
Daniel Tang9851ca52013-06-11 18:40:17 +1000955source "arch/arm/mach-nspire/Kconfig"
956
Tony Lindgrend48af152005-07-10 19:58:17 +0100957source "arch/arm/plat-omap/Kconfig"
958
959source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700960
Tony Lindgren1dbae812005-11-10 14:26:51 +0000961source "arch/arm/mach-omap2/Kconfig"
962
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400963source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400964
Rob Herring387798b2012-09-06 13:41:12 -0500965source "arch/arm/mach-picoxcell/Kconfig"
966
Russell King95b8f202010-01-14 11:43:54 +0000967source "arch/arm/mach-pxa/Kconfig"
968source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700969
Russell King95b8f202010-01-14 11:43:54 +0000970source "arch/arm/mach-mmp/Kconfig"
971
972source "arch/arm/mach-realview/Kconfig"
973
Heiko Stuebnerd63dc052013-06-02 23:09:41 +0200974source "arch/arm/mach-rockchip/Kconfig"
975
Russell King95b8f202010-01-14 11:43:54 +0000976source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300977
Ben Dookscf383672009-11-10 00:14:58 +0000978source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100979
Rob Herring387798b2012-09-06 13:41:12 -0500980source "arch/arm/mach-socfpga/Kconfig"
981
Arnd Bergmanna7ed0992012-12-02 15:12:47 +0100982source "arch/arm/mach-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100983
Srinivas Kandagatla65ebcc12013-06-25 12:15:10 +0100984source "arch/arm/mach-sti/Kconfig"
985
Kukjin Kim85fd6d62012-02-06 09:38:19 +0900986source "arch/arm/mach-s3c24xx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700987
Ben Dooks431107e2010-01-26 10:11:04 +0900988source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100989
Kukjin Kim49b7a492010-09-07 15:47:18 +0900990source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900991
Byungho Min5a7652f2009-06-23 21:39:42 +0900992source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900993
Kukjin Kim170f4e42010-02-24 16:40:44 +0900994source "arch/arm/mach-s5pv210/Kconfig"
995
Kukjin Kim83014572011-11-06 13:54:56 +0900996source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900997
Russell King882d01f2010-03-02 23:40:15 +0000998source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700999
Maxime Ripard3b526342012-11-08 12:40:16 +01001000source "arch/arm/mach-sunxi/Kconfig"
1001
Barry Song156a0992012-08-23 13:41:58 +08001002source "arch/arm/mach-prima2/Kconfig"
1003
Erik Gillingc5f80062010-01-21 16:53:02 -08001004source "arch/arm/mach-tegra/Kconfig"
1005
Russell King95b8f202010-01-14 11:43:54 +00001006source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001007
Russell King95b8f202010-01-14 11:43:54 +00001008source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001009
1010source "arch/arm/mach-versatile/Kconfig"
1011
Russell Kingceade892010-02-11 21:44:53 +00001012source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001013source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001014
Marc Zyngier2a0ba732012-10-05 13:47:39 +01001015source "arch/arm/mach-virt/Kconfig"
1016
Tony Prisk6f35f9a2012-10-11 20:13:09 +13001017source "arch/arm/mach-vt8500/Kconfig"
1018
wanzongshun7ec80dd2008-12-03 03:55:38 +01001019source "arch/arm/mach-w90x900/Kconfig"
1020
Josh Cartwright9a45eb62012-11-19 11:38:29 -06001021source "arch/arm/mach-zynq/Kconfig"
1022
Linus Torvalds1da177e2005-04-16 15:20:36 -07001023# Definitions to make life easier
1024config ARCH_ACORN
1025 bool
1026
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001027config PLAT_IOP
1028 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001029 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001030
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001031config PLAT_ORION
1032 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001033 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +01001034 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001035 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +02001036 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001037
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +02001038config PLAT_ORION_LEGACY
1039 bool
1040 select PLAT_ORION
1041
Eric Miaobd5ce432009-01-20 12:06:01 +08001042config PLAT_PXA
1043 bool
1044
Russell Kingf4b8b312010-01-14 12:48:06 +00001045config PLAT_VERSATILE
1046 bool
1047
Russell Kinge3887712010-01-14 13:30:16 +00001048config ARM_TIMER_SP804
1049 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001050 select CLKSRC_MMIO
Rob Herring7a0eca72013-03-25 11:23:52 -05001051 select CLKSRC_OF if OF
Russell Kinge3887712010-01-14 13:30:16 +00001052
Linus Torvalds1da177e2005-04-16 15:20:36 -07001053source arch/arm/mm/Kconfig
1054
Russell King958cab02011-12-11 10:04:00 +00001055config ARM_NR_BANKS
1056 int
1057 default 16 if ARCH_EP93XX
1058 default 8
1059
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001060config IWMMXT
Russell King698613b2013-04-03 16:33:26 +01001061 bool "Enable iWMMXt support" if !CPU_PJ4
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001062 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
Russell King698613b2013-04-03 16:33:26 +01001063 default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001064 help
1065 Enable support for iWMMXt context switching at run time if
1066 running on a CPU that supports it.
1067
Linus Torvalds1da177e2005-04-16 15:20:36 -07001068config XSCALE_PMU
1069 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001070 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001071 default y
1072
eric miao52108642010-12-13 09:42:34 +01001073config MULTI_IRQ_HANDLER
1074 bool
1075 help
1076 Allow each machine to specify it's own IRQ handler at run time.
1077
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001078if !MMU
1079source "arch/arm/Kconfig-nommu"
1080endif
1081
Gregory CLEMENT3e0a07f2013-06-23 10:17:11 +01001082config PJ4B_ERRATA_4742
1083 bool "PJ4B Errata 4742: IDLE Wake Up Commands can Cause the CPU Core to Cease Operation"
1084 depends on CPU_PJ4B && MACH_ARMADA_370
1085 default y
1086 help
1087 When coming out of either a Wait for Interrupt (WFI) or a Wait for
1088 Event (WFE) IDLE states, a specific timing sensitivity exists between
1089 the retiring WFI/WFE instructions and the newly issued subsequent
1090 instructions. This sensitivity can result in a CPU hang scenario.
1091 Workaround:
1092 The software must insert either a Data Synchronization Barrier (DSB)
1093 or Data Memory Barrier (DMB) command immediately after the WFI/WFE
1094 instruction
1095
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001096config ARM_ERRATA_326103
1097 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1098 depends on CPU_V6
1099 help
1100 Executing a SWP instruction to read-only memory does not set bit 11
1101 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1102 treat the access as a read, preventing a COW from occurring and
1103 causing the faulting task to livelock.
1104
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001105config ARM_ERRATA_411920
1106 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001107 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001108 help
1109 Invalidation of the Instruction Cache operation can
1110 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1111 It does not affect the MPCore. This option enables the ARM Ltd.
1112 recommended workaround.
1113
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001114config ARM_ERRATA_430973
1115 bool "ARM errata: Stale prediction on replaced interworking branch"
1116 depends on CPU_V7
1117 help
1118 This option enables the workaround for the 430973 Cortex-A8
1119 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1120 interworking branch is replaced with another code sequence at the
1121 same virtual address, whether due to self-modifying code or virtual
1122 to physical address re-mapping, Cortex-A8 does not recover from the
1123 stale interworking branch prediction. This results in Cortex-A8
1124 executing the new code sequence in the incorrect ARM or Thumb state.
1125 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1126 and also flushes the branch target cache at every context switch.
1127 Note that setting specific bits in the ACTLR register may not be
1128 available in non-secure mode.
1129
Catalin Marinas855c5512009-04-30 17:06:15 +01001130config ARM_ERRATA_458693
1131 bool "ARM errata: Processor deadlock when a false hazard is created"
1132 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001133 depends on !ARCH_MULTIPLATFORM
Catalin Marinas855c5512009-04-30 17:06:15 +01001134 help
1135 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1136 erratum. For very specific sequences of memory operations, it is
1137 possible for a hazard condition intended for a cache line to instead
1138 be incorrectly associated with a different cache line. This false
1139 hazard might then cause a processor deadlock. The workaround enables
1140 the L1 caching of the NEON accesses and disables the PLD instruction
1141 in the ACTLR register. Note that setting specific bits in the ACTLR
1142 register may not be available in non-secure mode.
1143
Catalin Marinas0516e462009-04-30 17:06:20 +01001144config ARM_ERRATA_460075
1145 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1146 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001147 depends on !ARCH_MULTIPLATFORM
Catalin Marinas0516e462009-04-30 17:06:20 +01001148 help
1149 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1150 erratum. Any asynchronous access to the L2 cache may encounter a
1151 situation in which recent store transactions to the L2 cache are lost
1152 and overwritten with stale memory contents from external memory. The
1153 workaround disables the write-allocate mode for the L2 cache via the
1154 ACTLR register. Note that setting specific bits in the ACTLR register
1155 may not be available in non-secure mode.
1156
Will Deacon9f050272010-09-14 09:51:43 +01001157config ARM_ERRATA_742230
1158 bool "ARM errata: DMB operation may be faulty"
1159 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001160 depends on !ARCH_MULTIPLATFORM
Will Deacon9f050272010-09-14 09:51:43 +01001161 help
1162 This option enables the workaround for the 742230 Cortex-A9
1163 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1164 between two write operations may not ensure the correct visibility
1165 ordering of the two writes. This workaround sets a specific bit in
1166 the diagnostic register of the Cortex-A9 which causes the DMB
1167 instruction to behave as a DSB, ensuring the correct behaviour of
1168 the two writes.
1169
Will Deacona672e992010-09-14 09:53:02 +01001170config ARM_ERRATA_742231
1171 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1172 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001173 depends on !ARCH_MULTIPLATFORM
Will Deacona672e992010-09-14 09:53:02 +01001174 help
1175 This option enables the workaround for the 742231 Cortex-A9
1176 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1177 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1178 accessing some data located in the same cache line, may get corrupted
1179 data due to bad handling of the address hazard when the line gets
1180 replaced from one of the CPUs at the same time as another CPU is
1181 accessing it. This workaround sets specific bits in the diagnostic
1182 register of the Cortex-A9 which reduces the linefill issuing
1183 capabilities of the processor.
1184
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001185config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001186 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001187 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001188 help
1189 The PL310 L2 cache controller implements three types of Clean &
1190 Invalidate maintenance operations: by Physical Address
1191 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1192 They are architecturally defined to behave as the execution of a
1193 clean operation followed immediately by an invalidate operation,
1194 both performing to the same memory location. This functionality
1195 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001196 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001197
Jon Medhurst69155792013-06-07 10:35:35 +01001198config ARM_ERRATA_643719
1199 bool "ARM errata: LoUIS bit field in CLIDR register is incorrect"
1200 depends on CPU_V7 && SMP
1201 help
1202 This option enables the workaround for the 643719 Cortex-A9 (prior to
1203 r1p0) erratum. On affected cores the LoUIS bit field of the CLIDR
1204 register returns zero when it should return one. The workaround
1205 corrects this value, ensuring cache maintenance operations which use
1206 it behave as intended and avoiding data corruption.
1207
Will Deaconcdf357f2010-08-05 11:20:51 +01001208config ARM_ERRATA_720789
1209 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001210 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001211 help
1212 This option enables the workaround for the 720789 Cortex-A9 (prior to
1213 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1214 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1215 As a consequence of this erratum, some TLB entries which should be
1216 invalidated are not, resulting in an incoherency in the system page
1217 tables. The workaround changes the TLB flushing routines to invalidate
1218 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001219
Russell King1f0090a2011-03-16 23:35:25 +00001220config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001221 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001222 depends on CACHE_L2X0
1223 help
1224 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1225 operation (offset 0x7FC). This operation runs in background so that
1226 PL310 can handle normal accesses while it is in progress. Under very
1227 rare circumstances, due to this erratum, write data can be lost when
1228 PL310 treats a cacheable write transaction during a Clean &
1229 Invalidate by Way operation.
1230
Will Deacon475d92f2010-09-28 14:02:02 +01001231config ARM_ERRATA_743622
1232 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1233 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001234 depends on !ARCH_MULTIPLATFORM
Will Deacon475d92f2010-09-28 14:02:02 +01001235 help
1236 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001237 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001238 optimisation in the Cortex-A9 Store Buffer may lead to data
1239 corruption. This workaround sets a specific bit in the diagnostic
1240 register of the Cortex-A9 which disables the Store Buffer
1241 optimisation, preventing the defect from occurring. This has no
1242 visible impact on the overall performance or power consumption of the
1243 processor.
1244
Will Deacon9a27c272011-02-18 16:36:35 +01001245config ARM_ERRATA_751472
1246 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001247 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001248 depends on !ARCH_MULTIPLATFORM
Will Deacon9a27c272011-02-18 16:36:35 +01001249 help
1250 This option enables the workaround for the 751472 Cortex-A9 (prior
1251 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1252 completion of a following broadcasted operation if the second
1253 operation is received by a CPU before the ICIALLUIS has completed,
1254 potentially leading to corrupted entries in the cache or TLB.
1255
Will Deaconfa0ce402011-11-14 17:24:57 +01001256config PL310_ERRATA_753970
1257 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001258 depends on CACHE_PL310
1259 help
1260 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1261
1262 Under some condition the effect of cache sync operation on
1263 the store buffer still remains when the operation completes.
1264 This means that the store buffer is always asked to drain and
1265 this prevents it from merging any further writes. The workaround
1266 is to replace the normal offset of cache sync operation (0x730)
1267 by another offset targeting an unmapped PL310 register 0x740.
1268 This has the same effect as the cache sync operation: store buffer
1269 drain and waiting for all buffers empty.
1270
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001271config ARM_ERRATA_754322
1272 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1273 depends on CPU_V7
1274 help
1275 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1276 r3p*) erratum. A speculative memory access may cause a page table walk
1277 which starts prior to an ASID switch but completes afterwards. This
1278 can populate the micro-TLB with a stale entry which may be hit with
1279 the new ASID. This workaround places two dsb instructions in the mm
1280 switching code so that no page table walks can cross the ASID switch.
1281
Will Deacon5dab26a2011-03-04 12:38:54 +01001282config ARM_ERRATA_754327
1283 bool "ARM errata: no automatic Store Buffer drain"
1284 depends on CPU_V7 && SMP
1285 help
1286 This option enables the workaround for the 754327 Cortex-A9 (prior to
1287 r2p0) erratum. The Store Buffer does not have any automatic draining
1288 mechanism and therefore a livelock may occur if an external agent
1289 continuously polls a memory location waiting to observe an update.
1290 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1291 written polling loops from denying visibility of updates to memory.
1292
Catalin Marinas145e10e2011-08-15 11:04:41 +01001293config ARM_ERRATA_364296
1294 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
Fabio Estevamfd832472013-07-09 18:34:01 +01001295 depends on CPU_V6
Catalin Marinas145e10e2011-08-15 11:04:41 +01001296 help
1297 This options enables the workaround for the 364296 ARM1136
1298 r0p2 erratum (possible cache data corruption with
1299 hit-under-miss enabled). It sets the undocumented bit 31 in
1300 the auxiliary control register and the FI bit in the control
1301 register, thus disabling hit-under-miss without putting the
1302 processor into full low interrupt latency mode. ARM11MPCore
1303 is not affected.
1304
Will Deaconf630c1b2011-09-15 11:45:15 +01001305config ARM_ERRATA_764369
1306 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1307 depends on CPU_V7 && SMP
1308 help
1309 This option enables the workaround for erratum 764369
1310 affecting Cortex-A9 MPCore with two or more processors (all
1311 current revisions). Under certain timing circumstances, a data
1312 cache line maintenance operation by MVA targeting an Inner
1313 Shareable memory region may fail to proceed up to either the
1314 Point of Coherency or to the Point of Unification of the
1315 system. This workaround adds a DSB instruction before the
1316 relevant cache maintenance functions and sets a specific bit
1317 in the diagnostic control register of the SCU.
1318
Will Deacon11ed0ba2011-11-14 17:24:58 +01001319config PL310_ERRATA_769419
1320 bool "PL310 errata: no automatic Store Buffer drain"
1321 depends on CACHE_L2X0
1322 help
1323 On revisions of the PL310 prior to r3p2, the Store Buffer does
1324 not automatically drain. This can cause normal, non-cacheable
1325 writes to be retained when the memory system is idle, leading
1326 to suboptimal I/O performance for drivers using coherent DMA.
1327 This option adds a write barrier to the cpu_idle loop so that,
1328 on systems with an outer cache, the store buffer is drained
1329 explicitly.
1330
Simon Horman7253b852012-09-28 02:12:45 +01001331config ARM_ERRATA_775420
1332 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1333 depends on CPU_V7
1334 help
1335 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1336 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1337 operation aborts with MMU exception, it might cause the processor
1338 to deadlock. This workaround puts DSB before executing ISB if
1339 an abort may occur on cache maintenance.
1340
Catalin Marinas93dc6882013-03-26 23:35:04 +01001341config ARM_ERRATA_798181
1342 bool "ARM errata: TLBI/DSB failure on Cortex-A15"
1343 depends on CPU_V7 && SMP
1344 help
1345 On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
1346 adequately shooting down all use of the old entries. This
1347 option enables the Linux kernel workaround for this erratum
1348 which sends an IPI to the CPUs that are running the same ASID
1349 as the one being invalidated.
1350
Will Deacon84b65042013-08-20 17:29:55 +01001351config ARM_ERRATA_773022
1352 bool "ARM errata: incorrect instructions may be executed from loop buffer"
1353 depends on CPU_V7
1354 help
1355 This option enables the workaround for the 773022 Cortex-A15
1356 (up to r0p4) erratum. In certain rare sequences of code, the
1357 loop buffer may deliver incorrect instructions. This
1358 workaround disables the loop buffer to avoid the erratum.
1359
Linus Torvalds1da177e2005-04-16 15:20:36 -07001360endmenu
1361
1362source "arch/arm/common/Kconfig"
1363
Linus Torvalds1da177e2005-04-16 15:20:36 -07001364menu "Bus support"
1365
1366config ARM_AMBA
1367 bool
1368
1369config ISA
1370 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001371 help
1372 Find out whether you have ISA slots on your motherboard. ISA is the
1373 name of a bus system, i.e. the way the CPU talks to the other stuff
1374 inside your box. Other bus systems are PCI, EISA, MicroChannel
1375 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1376 newer boards don't support it. If you have ISA, say Y, otherwise N.
1377
Russell King065909b2006-01-04 15:44:16 +00001378# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001379config ISA_DMA
1380 bool
Russell King065909b2006-01-04 15:44:16 +00001381 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001382
Russell King065909b2006-01-04 15:44:16 +00001383# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001384config ISA_DMA_API
1385 bool
Al Viro5cae8412005-05-04 05:39:22 +01001386
Linus Torvalds1da177e2005-04-16 15:20:36 -07001387config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001388 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001389 help
1390 Find out whether you have a PCI motherboard. PCI is the name of a
1391 bus system, i.e. the way the CPU talks to the other stuff inside
1392 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1393 VESA. If you have PCI, say Y, otherwise N.
1394
Anton Vorontsov52882172010-04-19 13:20:49 +01001395config PCI_DOMAINS
1396 bool
1397 depends on PCI
1398
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001399config PCI_NANOENGINE
1400 bool "BSE nanoEngine PCI support"
1401 depends on SA1100_NANOENGINE
1402 help
1403 Enable PCI on the BSE nanoEngine board.
1404
Matthew Wilcox36e23592007-07-10 10:54:40 -06001405config PCI_SYSCALL
1406 def_bool PCI
1407
Mike Rapoporta0113a92007-11-25 08:55:34 +01001408config PCI_HOST_ITE8152
1409 bool
1410 depends on PCI && MACH_ARMCORE
1411 default y
1412 select DMABOUNCE
1413
Linus Torvalds1da177e2005-04-16 15:20:36 -07001414source "drivers/pci/Kconfig"
Jingoo Han3f06d152013-06-21 16:25:29 +09001415source "drivers/pci/pcie/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001416
1417source "drivers/pcmcia/Kconfig"
1418
1419endmenu
1420
1421menu "Kernel Features"
1422
Dave Martin3b556582011-12-07 15:38:04 +00001423config HAVE_SMP
1424 bool
1425 help
1426 This option should be selected by machines which have an SMP-
1427 capable CPU.
1428
1429 The only effect of this option is to make the SMP-related
1430 options available to the user for configuration.
1431
Linus Torvalds1da177e2005-04-16 15:20:36 -07001432config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001433 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001434 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001435 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001436 depends on HAVE_SMP
Jonathan Austin801bb212013-02-22 18:56:04 +00001437 depends on MMU || ARM_MPU
Russell Kingb1b3f492012-10-06 17:12:25 +01001438 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001439 help
1440 This enables support for systems with more than one CPU. If you have
1441 a system with only one CPU, like most personal computers, say N. If
1442 you have a system with more than one CPU, say Y.
1443
1444 If you say N here, the kernel will run on single and multiprocessor
1445 machines, but will use only one CPU of a multiprocessor machine. If
1446 you say Y here, the kernel will run on many, but not all, single
1447 processor machines. On a single processor machine, the kernel will
1448 run faster if you say N here.
1449
Paul Bolle395cf962011-08-15 02:02:26 +02001450 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001451 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001452 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001453
1454 If you don't know what to do here, say N.
1455
Russell Kingf00ec482010-09-04 10:47:48 +01001456config SMP_ON_UP
1457 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
Jonathan Austin801bb212013-02-22 18:56:04 +00001458 depends on SMP && !XIP_KERNEL && MMU
Russell Kingf00ec482010-09-04 10:47:48 +01001459 default y
1460 help
1461 SMP kernels contain instructions which fail on non-SMP processors.
1462 Enabling this option allows the kernel to modify itself to make
1463 these instructions safe. Disabling it allows about 1K of space
1464 savings.
1465
1466 If you don't know what to do here, say Y.
1467
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001468config ARM_CPU_TOPOLOGY
1469 bool "Support cpu topology definition"
1470 depends on SMP && CPU_V7
1471 default y
1472 help
1473 Support ARM cpu topology definition. The MPIDR register defines
1474 affinity between processors which is then used to describe the cpu
1475 topology of an ARM System.
1476
1477config SCHED_MC
1478 bool "Multi-core scheduler support"
1479 depends on ARM_CPU_TOPOLOGY
1480 help
1481 Multi-core scheduler support improves the CPU scheduler's decision
1482 making when dealing with multi-core CPU chips at a cost of slightly
1483 increased overhead in some places. If unsure say N here.
1484
1485config SCHED_SMT
1486 bool "SMT scheduler support"
1487 depends on ARM_CPU_TOPOLOGY
1488 help
1489 Improves the CPU scheduler's decision making when dealing with
1490 MultiThreading at a cost of slightly increased overhead in some
1491 places. If unsure say N here.
1492
Russell Kinga8cbcd92009-05-16 11:51:14 +01001493config HAVE_ARM_SCU
1494 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001495 help
1496 This option enables support for the ARM system coherency unit
1497
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001498config HAVE_ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001499 bool "Architected timer support"
1500 depends on CPU_V7
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001501 select ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001502 help
1503 This option enables support for the ARM architected timer
1504
Russell Kingf32f4ce2009-05-16 12:14:21 +01001505config HAVE_ARM_TWD
1506 bool
1507 depends on SMP
Rob Herringda4a6862013-02-06 21:17:47 -06001508 select CLKSRC_OF if OF
Russell Kingf32f4ce2009-05-16 12:14:21 +01001509 help
1510 This options enables support for the ARM timer and watchdog unit
1511
Nicolas Pitree8db2882012-04-12 02:45:22 -04001512config MCPM
1513 bool "Multi-Cluster Power Management"
1514 depends on CPU_V7 && SMP
1515 help
1516 This option provides the common power management infrastructure
1517 for (multi-)cluster based systems, such as big.LITTLE based
1518 systems.
1519
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001520choice
1521 prompt "Memory split"
1522 default VMSPLIT_3G
1523 help
1524 Select the desired split between kernel and user memory.
1525
1526 If you are not absolutely sure what you are doing, leave this
1527 option alone!
1528
1529 config VMSPLIT_3G
1530 bool "3G/1G user/kernel split"
1531 config VMSPLIT_2G
1532 bool "2G/2G user/kernel split"
1533 config VMSPLIT_1G
1534 bool "1G/3G user/kernel split"
1535endchoice
1536
1537config PAGE_OFFSET
1538 hex
1539 default 0x40000000 if VMSPLIT_1G
1540 default 0x80000000 if VMSPLIT_2G
1541 default 0xC0000000
1542
Linus Torvalds1da177e2005-04-16 15:20:36 -07001543config NR_CPUS
1544 int "Maximum number of CPUs (2-32)"
1545 range 2 32
1546 depends on SMP
1547 default "4"
1548
Russell Kinga054a812005-11-02 22:24:33 +00001549config HOTPLUG_CPU
Russell King00b7ded2012-10-22 22:54:30 +01001550 bool "Support for hot-pluggable CPUs"
Stephen Rothwell40b31362013-05-21 13:49:35 +10001551 depends on SMP
Russell Kinga054a812005-11-02 22:24:33 +00001552 help
1553 Say Y here to experiment with turning CPUs off and on. CPUs
1554 can be controlled through /sys/devices/system/cpu.
1555
Will Deacon2bdd4242012-12-12 19:20:52 +00001556config ARM_PSCI
1557 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1558 depends on CPU_V7
1559 help
1560 Say Y here if you want Linux to communicate with system firmware
1561 implementing the PSCI specification for CPU-centric power
1562 management operations described in ARM document number ARM DEN
1563 0022A ("Power State Coordination Interface System Software on
1564 ARM processors").
1565
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001566# The GPIO number here must be sorted by descending number. In case of
1567# a multiplatform kernel, we just want the highest value required by the
1568# selected platforms.
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001569config ARCH_NR_GPIO
1570 int
Peter De Schrijver (NVIDIA)3dea19e82011-12-21 15:14:52 +01001571 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
R Sricharan6d0fc192013-02-07 17:43:35 +05301572 default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || SOC_DRA7XX
Olof Johansson06b851e2013-04-02 18:33:58 -07001573 default 392 if ARCH_U8500
Tony Prisk01bb9142013-03-09 18:22:30 +13001574 default 352 if ARCH_VT8500
1575 default 288 if ARCH_SUNXI
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001576 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001577 default 0
1578 help
1579 Maximum number of GPIOs in the system.
1580
1581 If unsure, leave the default value.
1582
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001583source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001584
Russell Kingc9218b12013-04-27 23:31:10 +01001585config HZ_FIXED
Russell Kingf8065812006-03-02 22:41:59 +00001586 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001587 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001588 ARCH_S5PV210 || ARCH_EXYNOS4
David Brownell5248c652007-11-12 17:59:10 +01001589 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001590 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell King47d84682013-09-10 23:47:55 +01001591 default 0
Russell Kingc9218b12013-04-27 23:31:10 +01001592
1593choice
Russell King47d84682013-09-10 23:47:55 +01001594 depends on HZ_FIXED = 0
Russell Kingc9218b12013-04-27 23:31:10 +01001595 prompt "Timer frequency"
1596
1597config HZ_100
1598 bool "100 Hz"
1599
1600config HZ_200
1601 bool "200 Hz"
1602
1603config HZ_250
1604 bool "250 Hz"
1605
1606config HZ_300
1607 bool "300 Hz"
1608
1609config HZ_500
1610 bool "500 Hz"
1611
1612config HZ_1000
1613 bool "1000 Hz"
1614
1615endchoice
1616
1617config HZ
1618 int
Russell King47d84682013-09-10 23:47:55 +01001619 default HZ_FIXED if HZ_FIXED != 0
Russell Kingc9218b12013-04-27 23:31:10 +01001620 default 100 if HZ_100
1621 default 200 if HZ_200
1622 default 250 if HZ_250
1623 default 300 if HZ_300
1624 default 500 if HZ_500
1625 default 1000
1626
1627config SCHED_HRTICK
1628 def_bool HIGH_RES_TIMERS
Russell Kingf8065812006-03-02 22:41:59 +00001629
Russell Kingb28748f2013-02-17 14:40:33 +00001630config SCHED_HRTICK
1631 def_bool HIGH_RES_TIMERS
1632
Catalin Marinas16c79652009-07-24 12:33:02 +01001633config THUMB2_KERNEL
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001634 bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
Uwe Kleine-König4477ca42013-03-21 21:02:37 +01001635 depends on (CPU_V7 || CPU_V7M) && !CPU_V6 && !CPU_V6K
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001636 default y if CPU_THUMBONLY
Catalin Marinas16c79652009-07-24 12:33:02 +01001637 select AEABI
1638 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001639 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001640 help
1641 By enabling this option, the kernel will be compiled in
1642 Thumb-2 mode. A compiler/assembler that understand the unified
1643 ARM-Thumb syntax is needed.
1644
1645 If unsure, say N.
1646
Dave Martin6f685c52011-03-03 11:41:12 +01001647config THUMB2_AVOID_R_ARM_THM_JUMP11
1648 bool "Work around buggy Thumb-2 short branch relocations in gas"
1649 depends on THUMB2_KERNEL && MODULES
1650 default y
1651 help
1652 Various binutils versions can resolve Thumb-2 branches to
1653 locally-defined, preemptible global symbols as short-range "b.n"
1654 branch instructions.
1655
1656 This is a problem, because there's no guarantee the final
1657 destination of the symbol, or any candidate locations for a
1658 trampoline, are within range of the branch. For this reason, the
1659 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1660 relocation in modules at all, and it makes little sense to add
1661 support.
1662
1663 The symptom is that the kernel fails with an "unsupported
1664 relocation" error when loading some modules.
1665
1666 Until fixed tools are available, passing
1667 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1668 code which hits this problem, at the cost of a bit of extra runtime
1669 stack usage in some cases.
1670
1671 The problem is described in more detail at:
1672 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1673
1674 Only Thumb-2 kernels are affected.
1675
1676 Unless you are sure your tools don't have this problem, say Y.
1677
Catalin Marinas0becb082009-07-24 12:32:53 +01001678config ARM_ASM_UNIFIED
1679 bool
1680
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001681config AEABI
1682 bool "Use the ARM EABI to compile the kernel"
1683 help
1684 This option allows for the kernel to be compiled using the latest
1685 ARM ABI (aka EABI). This is only useful if you are using a user
1686 space environment that is also compiled with EABI.
1687
1688 Since there are major incompatibilities between the legacy ABI and
1689 EABI, especially with regard to structure member alignment, this
1690 option also changes the kernel syscall calling convention to
1691 disambiguate both ABIs and allow for backward compatibility support
1692 (selected with CONFIG_OABI_COMPAT).
1693
1694 To use this you need GCC version 4.0.0 or later.
1695
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001696config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001697 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001698 depends on AEABI && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001699 default y
1700 help
1701 This option preserves the old syscall interface along with the
1702 new (ARM EABI) one. It also provides a compatibility layer to
1703 intercept syscalls that have structure arguments which layout
1704 in memory differs between the legacy ABI and the new ARM EABI
1705 (only for non "thumb" binaries). This option adds a tiny
1706 overhead to all syscalls and produces a slightly larger kernel.
1707 If you know you'll be using only pure EABI user space then you
1708 can say N here. If this option is not selected and you attempt
1709 to execute a legacy ABI binary then the result will be
1710 UNPREDICTABLE (in fact it can be predicted that it won't work
1711 at all). If in doubt say Y.
1712
Mel Gormaneb335752009-05-13 17:34:48 +01001713config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001714 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001715
Russell King05944d72006-11-30 20:43:51 +00001716config ARCH_SPARSEMEM_ENABLE
1717 bool
1718
Russell King07a2f732008-10-01 21:39:58 +01001719config ARCH_SPARSEMEM_DEFAULT
1720 def_bool ARCH_SPARSEMEM_ENABLE
1721
Russell King05944d72006-11-30 20:43:51 +00001722config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001723 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001724
Will Deacon7b7bf492011-05-19 13:21:14 +01001725config HAVE_ARCH_PFN_VALID
1726 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1727
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001728config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001729 bool "High Memory Support"
1730 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001731 help
1732 The address space of ARM processors is only 4 Gigabytes large
1733 and it has to accommodate user address space, kernel address
1734 space as well as some memory mapped IO. That means that, if you
1735 have a large amount of physical memory and/or IO, not all of the
1736 memory can be "permanently mapped" by the kernel. The physical
1737 memory that is not permanently mapped is called "high memory".
1738
1739 Depending on the selected kernel/user memory split, minimum
1740 vmalloc space and actual amount of RAM, you may not need this
1741 option which should result in a slightly faster kernel.
1742
1743 If unsure, say n.
1744
Russell King65cec8e2009-08-17 20:02:06 +01001745config HIGHPTE
1746 bool "Allocate 2nd-level pagetables from highmem"
1747 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001748
Jamie Iles1b8873a2010-02-02 20:25:44 +01001749config HW_PERF_EVENTS
1750 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001751 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001752 default y
1753 help
1754 Enable hardware performance counter support for perf events. If
1755 disabled, perf events will use software events only.
1756
Catalin Marinas1355e2a2012-07-25 14:32:38 +01001757config SYS_SUPPORTS_HUGETLBFS
1758 def_bool y
1759 depends on ARM_LPAE
1760
Catalin Marinas8d962502012-07-25 14:39:26 +01001761config HAVE_ARCH_TRANSPARENT_HUGEPAGE
1762 def_bool y
1763 depends on ARM_LPAE
1764
Steven Capper4bfab202013-07-26 14:58:22 +01001765config ARCH_WANT_GENERAL_HUGETLB
1766 def_bool y
1767
Dave Hansen3f22ab22005-06-23 00:07:43 -07001768source "mm/Kconfig"
1769
Magnus Dammc1b2d972010-07-05 10:00:11 +01001770config FORCE_MAX_ZONEORDER
1771 int "Maximum zone order" if ARCH_SHMOBILE
1772 range 11 64 if ARCH_SHMOBILE
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001773 default "12" if SOC_AM33XX
Magnus Dammc1b2d972010-07-05 10:00:11 +01001774 default "9" if SA1111
1775 default "11"
1776 help
1777 The kernel memory allocator divides physically contiguous memory
1778 blocks into "zones", where each zone is a power of two number of
1779 pages. This option selects the largest power of two that the kernel
1780 keeps in the memory allocator. If you need to allocate very large
1781 blocks of physically contiguous memory, then you may need to
1782 increase this value.
1783
1784 This config option is actually maximum order plus one. For example,
1785 a value of 11 means that the largest free memory block is 2^10 pages.
1786
Linus Torvalds1da177e2005-04-16 15:20:36 -07001787config ALIGNMENT_TRAP
1788 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001789 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001790 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001791 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001792 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001793 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001794 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1795 address divisible by 4. On 32-bit ARM processors, these non-aligned
1796 fetch/store instructions will be emulated in software if you say
1797 here, which has a severe performance impact. This is necessary for
1798 correct operation of some network protocols. With an IP-only
1799 configuration it is safe to say N, otherwise say Y.
1800
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001801config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001802 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1803 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001804 default y if CPU_FEROCEON
1805 help
1806 Implement faster copy_to_user and clear_user methods for CPU
1807 cores where a 8-word STM instruction give significantly higher
1808 memory write throughput than a sequence of individual 32bit stores.
1809
1810 A possible side effect is a slight increase in scheduling latency
1811 between threads sharing the same address space if they invoke
1812 such copy operations with large buffers.
1813
1814 However, if the CPU data cache is using a write-allocate mode,
1815 this option is unlikely to provide any performance gain.
1816
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001817config SECCOMP
1818 bool
1819 prompt "Enable seccomp to safely compute untrusted bytecode"
1820 ---help---
1821 This kernel feature is useful for number crunching applications
1822 that may need to compute untrusted bytecode during their
1823 execution. By using pipes or other transports made available to
1824 the process as file descriptors supporting the read/write
1825 syscalls, it's possible to isolate those applications in
1826 their own address space using seccomp. Once seccomp is
1827 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1828 and the task is only allowed to execute a few safe syscalls
1829 defined by each seccomp mode.
1830
Nicolas Pitrec743f382010-05-24 23:55:42 -04001831config CC_STACKPROTECTOR
1832 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1833 help
1834 This option turns on the -fstack-protector GCC feature. This
1835 feature puts, at the beginning of functions, a canary value on
1836 the stack just before the return address, and validates
1837 the value just before actually returning. Stack based buffer
1838 overflows (that need to overwrite this return address) now also
1839 overwrite the canary, which gets detected and the attack is then
1840 neutralized via a kernel panic.
1841 This feature requires gcc version 4.2 or above.
1842
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001843config XEN_DOM0
1844 def_bool y
1845 depends on XEN
1846
1847config XEN
1848 bool "Xen guest support on ARM (EXPERIMENTAL)"
Ian Campbell85323a92013-03-07 07:17:25 +00001849 depends on ARM && AEABI && OF
Arnd Bergmannf880b672012-10-09 10:33:52 +00001850 depends on CPU_V7 && !CPU_V6
Ian Campbell85323a92013-03-07 07:17:25 +00001851 depends on !GENERIC_ATOMIC64
Stefano Stabellini17b7ab82013-04-24 18:47:18 +00001852 select ARM_PSCI
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001853 help
1854 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1855
Linus Torvalds1da177e2005-04-16 15:20:36 -07001856endmenu
1857
1858menu "Boot options"
1859
Grant Likely9eb8f672011-04-28 14:27:20 -06001860config USE_OF
1861 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001862 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001863 select OF
1864 select OF_EARLY_FLATTREE
1865 help
1866 Include support for flattened device tree machine descriptions.
1867
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001868config ATAGS
1869 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1870 default y
1871 help
1872 This is the traditional way of passing data to the kernel at boot
1873 time. If you are solely relying on the flattened device tree (or
1874 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1875 to remove ATAGS support from your kernel binary. If unsure,
1876 leave this to y.
1877
1878config DEPRECATED_PARAM_STRUCT
1879 bool "Provide old way to pass kernel parameters"
1880 depends on ATAGS
1881 help
1882 This was deprecated in 2001 and announced to live on for 5 years.
1883 Some old boot loaders still use this way.
1884
Linus Torvalds1da177e2005-04-16 15:20:36 -07001885# Compressed boot loader in ROM. Yes, we really want to ask about
1886# TEXT and BSS so we preserve their values in the config files.
1887config ZBOOT_ROM_TEXT
1888 hex "Compressed ROM boot loader base address"
1889 default "0"
1890 help
1891 The physical address at which the ROM-able zImage is to be
1892 placed in the target. Platforms which normally make use of
1893 ROM-able zImage formats normally set this to a suitable
1894 value in their defconfig file.
1895
1896 If ZBOOT_ROM is not enabled, this has no effect.
1897
1898config ZBOOT_ROM_BSS
1899 hex "Compressed ROM boot loader BSS address"
1900 default "0"
1901 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001902 The base address of an area of read/write memory in the target
1903 for the ROM-able zImage which must be available while the
1904 decompressor is running. It must be large enough to hold the
1905 entire decompressed kernel plus an additional 128 KiB.
1906 Platforms which normally make use of ROM-able zImage formats
1907 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001908
1909 If ZBOOT_ROM is not enabled, this has no effect.
1910
1911config ZBOOT_ROM
1912 bool "Compressed boot loader in ROM/flash"
1913 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1914 help
1915 Say Y here if you intend to execute your compressed kernel image
1916 (zImage) directly from ROM or flash. If unsure, say N.
1917
Simon Horman090ab3f2011-04-26 06:29:53 +01001918choice
1919 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001920 depends on ZBOOT_ROM && ARCH_SH7372
Simon Horman090ab3f2011-04-26 06:29:53 +01001921 default ZBOOT_ROM_NONE
1922 help
1923 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001924 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001925 kernel image to an MMC or SD card and boot the kernel straight
1926 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001927 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001928 rest the kernel image to RAM.
1929
1930config ZBOOT_ROM_NONE
1931 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1932 help
1933 Do not load image from SD or MMC
1934
Simon Hormanf45b1142011-01-11 04:01:08 +01001935config ZBOOT_ROM_MMCIF
1936 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001937 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001938 Load image from MMCIF hardware block.
1939
1940config ZBOOT_ROM_SH_MOBILE_SDHI
1941 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1942 help
1943 Load image from SDHI hardware block
1944
1945endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001946
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001947config ARM_APPENDED_DTB
1948 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001949 depends on OF && !ZBOOT_ROM
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001950 help
1951 With this option, the boot code will look for a device tree binary
1952 (DTB) appended to zImage
1953 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1954
1955 This is meant as a backward compatibility convenience for those
1956 systems with a bootloader that can't be upgraded to accommodate
1957 the documented boot protocol using a device tree.
1958
1959 Beware that there is very little in terms of protection against
1960 this option being confused by leftover garbage in memory that might
1961 look like a DTB header after a reboot if no actual DTB is appended
1962 to zImage. Do not leave this option active in a production kernel
1963 if you don't intend to always append a DTB. Proper passing of the
1964 location into r2 of a bootloader provided DTB is always preferable
1965 to this option.
1966
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001967config ARM_ATAG_DTB_COMPAT
1968 bool "Supplement the appended DTB with traditional ATAG information"
1969 depends on ARM_APPENDED_DTB
1970 help
1971 Some old bootloaders can't be updated to a DTB capable one, yet
1972 they provide ATAGs with memory configuration, the ramdisk address,
1973 the kernel cmdline string, etc. Such information is dynamically
1974 provided by the bootloader and can't always be stored in a static
1975 DTB. To allow a device tree enabled kernel to be used with such
1976 bootloaders, this option allows zImage to extract the information
1977 from the ATAG list and store it at run time into the appended DTB.
1978
Genoud Richardd0f34a12012-06-26 16:37:59 +01001979choice
1980 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
1981 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1982
1983config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1984 bool "Use bootloader kernel arguments if available"
1985 help
1986 Uses the command-line options passed by the boot loader instead of
1987 the device tree bootargs property. If the boot loader doesn't provide
1988 any, the device tree bootargs property will be used.
1989
1990config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
1991 bool "Extend with bootloader kernel arguments"
1992 help
1993 The command-line arguments provided by the boot loader will be
1994 appended to the the device tree bootargs property.
1995
1996endchoice
1997
Linus Torvalds1da177e2005-04-16 15:20:36 -07001998config CMDLINE
1999 string "Default kernel command string"
2000 default ""
2001 help
2002 On some architectures (EBSA110 and CATS), there is currently no way
2003 for the boot loader to pass arguments to the kernel. For these
2004 architectures, you should supply some command-line options at build
2005 time by entering them here. As a minimum, you should specify the
2006 memory size and the root device (e.g., mem=64M root=/dev/nfs).
2007
Victor Boivie4394c122011-05-04 17:07:55 +01002008choice
2009 prompt "Kernel command line type" if CMDLINE != ""
2010 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002011 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01002012
2013config CMDLINE_FROM_BOOTLOADER
2014 bool "Use bootloader kernel arguments if available"
2015 help
2016 Uses the command-line options passed by the boot loader. If
2017 the boot loader doesn't provide any, the default kernel command
2018 string provided in CMDLINE will be used.
2019
2020config CMDLINE_EXTEND
2021 bool "Extend bootloader kernel arguments"
2022 help
2023 The command-line arguments provided by the boot loader will be
2024 appended to the default kernel command string.
2025
Alexander Holler92d20402010-02-16 19:04:53 +01002026config CMDLINE_FORCE
2027 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01002028 help
2029 Always use the default kernel command string, even if the boot
2030 loader passes other arguments to the kernel.
2031 This is useful if you cannot or don't want to change the
2032 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01002033endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002034
Linus Torvalds1da177e2005-04-16 15:20:36 -07002035config XIP_KERNEL
2036 bool "Kernel Execute-In-Place from ROM"
Rob Herring387798b2012-09-06 13:41:12 -05002037 depends on !ZBOOT_ROM && !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07002038 help
2039 Execute-In-Place allows the kernel to run from non-volatile storage
2040 directly addressable by the CPU, such as NOR flash. This saves RAM
2041 space since the text section of the kernel is not loaded from flash
2042 to RAM. Read-write sections, such as the data section and stack,
2043 are still copied to RAM. The XIP kernel is not compressed since
2044 it has to run directly from flash, so it will take more space to
2045 store it. The flash address used to link the kernel object files,
2046 and for storing it, is configuration dependent. Therefore, if you
2047 say Y here, you must know the proper physical address where to
2048 store the kernel image depending on your own flash memory usage.
2049
2050 Also note that the make target becomes "make xipImage" rather than
2051 "make zImage" or "make Image". The final kernel binary to put in
2052 ROM memory will be arch/arm/boot/xipImage.
2053
2054 If unsure, say N.
2055
2056config XIP_PHYS_ADDR
2057 hex "XIP Kernel Physical Location"
2058 depends on XIP_KERNEL
2059 default "0x00080000"
2060 help
2061 This is the physical address in your flash memory the kernel will
2062 be linked for and stored to. This address is dependent on your
2063 own flash usage.
2064
Richard Purdiec587e4a2007-02-06 21:29:00 +01002065config KEXEC
2066 bool "Kexec system call (EXPERIMENTAL)"
Stephen Warren19ab4282013-06-14 16:14:14 +01002067 depends on (!SMP || PM_SLEEP_SMP)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002068 help
2069 kexec is a system call that implements the ability to shutdown your
2070 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002071 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002072 you can start any kernel with it, not just Linux.
2073
2074 It is an ongoing process to be certain the hardware in a machine
2075 is properly shutdown, so do not be surprised if this code does not
Geert Uytterhoevenbf220692013-08-20 21:38:03 +02002076 initially work for you.
Richard Purdiec587e4a2007-02-06 21:29:00 +01002077
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002078config ATAGS_PROC
2079 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002080 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01002081 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002082 help
2083 Should the atags used to boot the kernel be exported in an "atags"
2084 file in procfs. Useful with kexec.
2085
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002086config CRASH_DUMP
2087 bool "Build kdump crash kernel (EXPERIMENTAL)"
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002088 help
2089 Generate crash dump after being started by kexec. This should
2090 be normally only set in special crash dump kernels which are
2091 loaded in the main kernel with kexec-tools into a specially
2092 reserved region and then later executed after a crash by
2093 kdump/kexec. The crash dump kernel must be compiled to a
2094 memory address not used by the main kernel
2095
2096 For more details see Documentation/kdump/kdump.txt
2097
Eric Miaoe69edc792010-07-05 15:56:50 +02002098config AUTO_ZRELADDR
2099 bool "Auto calculation of the decompressed kernel image address"
Linus Walleije1b31442013-05-02 18:01:46 +02002100 depends on !ZBOOT_ROM
Eric Miaoe69edc792010-07-05 15:56:50 +02002101 help
2102 ZRELADDR is the physical address where the decompressed kernel
2103 image will be placed. If AUTO_ZRELADDR is selected, the address
2104 will be determined at run-time by masking the current IP with
2105 0xf8000000. This assumes the zImage being placed in the first 128MB
2106 from start of memory.
2107
Linus Torvalds1da177e2005-04-16 15:20:36 -07002108endmenu
2109
Russell Kingac9d7ef2008-08-18 17:26:00 +01002110menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002111
Ben Dooks89c52ed2009-07-30 23:23:24 +01002112if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002113source "drivers/cpufreq/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002114endif
2115
Russell Kingac9d7ef2008-08-18 17:26:00 +01002116source "drivers/cpuidle/Kconfig"
2117
2118endmenu
2119
Linus Torvalds1da177e2005-04-16 15:20:36 -07002120menu "Floating point emulation"
2121
2122comment "At least one emulation must be selected"
2123
2124config FPE_NWFPE
2125 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002126 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002127 ---help---
2128 Say Y to include the NWFPE floating point emulator in the kernel.
2129 This is necessary to run most binaries. Linux does not currently
2130 support floating point hardware so you need to say Y here even if
2131 your machine has an FPA or floating point co-processor podule.
2132
2133 You may say N here if you are going to load the Acorn FPEmulator
2134 early in the bootup.
2135
2136config FPE_NWFPE_XP
2137 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002138 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002139 help
2140 Say Y to include 80-bit support in the kernel floating-point
2141 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2142 Note that gcc does not generate 80-bit operations by default,
2143 so in most cases this option only enlarges the size of the
2144 floating point emulator without any good reason.
2145
2146 You almost surely want to say N here.
2147
2148config FPE_FASTFPE
2149 bool "FastFPE math emulation (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002150 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
Linus Torvalds1da177e2005-04-16 15:20:36 -07002151 ---help---
2152 Say Y here to include the FAST floating point emulator in the kernel.
2153 This is an experimental much faster emulator which now also has full
2154 precision for the mantissa. It does not support any exceptions.
2155 It is very simple, and approximately 3-6 times faster than NWFPE.
2156
2157 It should be sufficient for most programs. It may be not suitable
2158 for scientific calculations, but you have to check this for yourself.
2159 If you do not feel you need a faster FP emulation you should better
2160 choose NWFPE.
2161
2162config VFP
2163 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002164 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002165 help
2166 Say Y to include VFP support code in the kernel. This is needed
2167 if your hardware includes a VFP unit.
2168
2169 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2170 release notes and additional status information.
2171
2172 Say N if your target does not have VFP hardware.
2173
Catalin Marinas25ebee02007-09-25 15:22:24 +01002174config VFPv3
2175 bool
2176 depends on VFP
2177 default y if CPU_V7
2178
Catalin Marinasb5872db2008-01-10 19:16:17 +01002179config NEON
2180 bool "Advanced SIMD (NEON) Extension support"
2181 depends on VFPv3 && CPU_V7
2182 help
2183 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2184 Extension.
2185
Ard Biesheuvel73c132c2013-05-16 11:41:48 +02002186config KERNEL_MODE_NEON
2187 bool "Support for NEON in kernel mode"
Russell Kingc4a30c32013-09-22 11:08:50 +01002188 depends on NEON && AEABI
Ard Biesheuvel73c132c2013-05-16 11:41:48 +02002189 help
2190 Say Y to include support for NEON in kernel mode.
2191
Linus Torvalds1da177e2005-04-16 15:20:36 -07002192endmenu
2193
2194menu "Userspace binary formats"
2195
2196source "fs/Kconfig.binfmt"
2197
2198config ARTHUR
2199 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002200 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002201 help
2202 Say Y here to include the kernel code necessary if you want to run
2203 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2204 experimental; if this sounds frightening, say N and sleep in peace.
2205 You can also say M here to compile this support as a module (which
2206 will be called arthur).
2207
2208endmenu
2209
2210menu "Power management options"
2211
Russell Kingeceab4a2005-11-15 11:31:41 +00002212source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002213
Johannes Bergf4cb5702007-12-08 02:14:00 +01002214config ARCH_SUSPEND_POSSIBLE
Stephen Warren4b1082c2012-09-05 09:58:27 -06002215 depends on !ARCH_S5PC100
Ezequiel Garcia19a05192013-08-16 10:28:24 +01002216 depends on CPU_ARM920T || CPU_ARM926T || CPU_FEROCEON || CPU_SA1100 || \
Chao Xie3f5d0812012-05-07 11:23:58 +08002217 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002218 def_bool y
2219
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002220config ARM_CPU_SUSPEND
2221 def_bool PM_SLEEP
2222
Linus Torvalds1da177e2005-04-16 15:20:36 -07002223endmenu
2224
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002225source "net/Kconfig"
2226
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002227source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002228
2229source "fs/Kconfig"
2230
Linus Torvalds1da177e2005-04-16 15:20:36 -07002231source "arch/arm/Kconfig.debug"
2232
2233source "security/Kconfig"
2234
2235source "crypto/Kconfig"
2236
2237source "lib/Kconfig"
Christoffer Dall749cf76c2013-01-20 18:28:06 -05002238
2239source "arch/arm/kvm/Kconfig"