blob: 76b025e3a74afa6d4312cb3b0a90d7a02442ddff [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
Russell Kingb1b3f492012-10-06 17:12:25 +0100361 select HAVE_CLK
Nicolas Ferree2615012011-11-22 22:26:09 +0100362 select IRQ_DOMAIN
Rob Herring01464222012-08-28 13:06:41 -0500363 select NEED_MACH_GPIO_H
Rob Herring1ac02d72012-04-04 17:48:04 -0500364 select NEED_MACH_IO_H if PCCARD
Jean-Christophe PLAGNIOL-VILLARD6732ae52012-07-12 23:35:02 +0800365 select PINCTRL
366 select PINCTRL_AT91 if USE_OF
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100367 help
Nicolas Ferre929e9942012-03-15 12:21:12 +0100368 This enables support for systems based on Atmel
369 AT91RM9200 and AT91SAM9* processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100370
Russell King93e22562012-10-12 14:20:52 +0100371config ARCH_CLPS711X
372 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
Alexander Shiyana3b8d4a2012-10-09 20:05:56 +0400373 select ARCH_REQUIRE_GPIOLIB
Alexander Shiyanea7d1bc2012-11-17 17:57:11 +0400374 select AUTO_ZRELADDR
Russell King93e22562012-10-12 14:20:52 +0100375 select CLKDEV_LOOKUP
Alexander Shiyanc99f72a2013-05-13 21:07:32 +0400376 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100377 select COMMON_CLK
378 select CPU_ARM720T
Alexander Shiyan4a8355c2012-10-10 19:45:27 +0400379 select GENERIC_CLOCKEVENTS
Alexander Shiyan65976192013-05-13 21:07:36 +0400380 select MFD_SYSCON
Alexander Shiyan99f04c82012-11-17 17:57:14 +0400381 select MULTI_IRQ_HANDLER
Alexander Shiyan0d8be812012-11-17 17:57:13 +0400382 select SPARSE_IRQ
Russell King93e22562012-10-12 14:20:52 +0100383 help
384 Support for Cirrus Logic 711x/721x/731x based boards.
385
Russell King788c9702009-04-26 14:21:59 +0100386config ARCH_GEMINI
387 bool "Cortina Systems Gemini"
Russell King788c9702009-04-26 14:21:59 +0100388 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000389 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100390 select CPU_FA526
Russell King171b3f02013-09-12 21:24:42 +0100391 select NEED_MACH_GPIO_H
Russell King788c9702009-04-26 14:21:59 +0100392 help
393 Support for the Cortina Systems Gemini family SoCs
394
Linus Torvalds1da177e2005-04-16 15:20:36 -0700395config ARCH_EBSA110
396 bool "EBSA-110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100397 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000398 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100399 select ISA
Rob Herringc334bc12012-03-04 22:03:33 -0600400 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400401 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100402 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700403 help
404 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000405 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700406 Ethernet interface, two PCMCIA sockets, two serial ports and a
407 parallel port.
408
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000409config ARCH_EP93XX
410 bool "EP93xx-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100411 select ARCH_HAS_HOLES_MEMORYMODEL
412 select ARCH_REQUIRE_GPIOLIB
413 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000414 select ARM_AMBA
415 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100416 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100417 select CPU_ARM920T
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100418 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000419 help
420 This enables support for the Cirrus EP93xx series of CPUs.
421
Linus Torvalds1da177e2005-04-16 15:20:36 -0700422config ARCH_FOOTBRIDGE
423 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000424 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700425 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000426 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200427 select HAVE_IDE
Rob Herring8ef6e622012-03-01 20:48:12 -0600428 select NEED_MACH_IO_H if !MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400429 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000430 help
431 Support for systems based on the DC21285 companion chip
432 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700433
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100434config ARCH_NETX
435 bool "Hilscher NetX based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100436 select ARM_VIC
Russell King234b6ced2011-05-08 14:09:47 +0100437 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000438 select CPU_ARM926T
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100439 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000440 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100441 This enables support for systems based on the Hilscher NetX Soc
442
Russell King3b938be2007-05-12 11:25:44 +0100443config ARCH_IOP13XX
444 bool "IOP13xx-based"
445 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100446 select CPU_XSC3
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400447 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600448 select NEED_RET_TO_USER
Russell Kingb1b3f492012-10-06 17:12:25 +0100449 select PCI
450 select PLAT_IOP
451 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100452 help
453 Support for Intel's IOP13XX (XScale) family of processors.
454
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100455config ARCH_IOP32X
456 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100457 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100458 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000459 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500460 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600461 select NEED_RET_TO_USER
Russell Kingf7e68bb2005-05-05 14:49:01 +0100462 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100463 select PLAT_IOP
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000464 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100465 Support for Intel's 80219 and IOP32X (XScale) family of
466 processors.
467
468config ARCH_IOP33X
469 bool "IOP33x-based"
470 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100471 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000472 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500473 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600474 select NEED_RET_TO_USER
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100475 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100476 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100477 help
478 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700479
Russell King3b938be2007-05-12 11:25:44 +0100480config ARCH_IXP4XX
481 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100482 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500483 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell Kingb1b3f492012-10-06 17:12:25 +0100484 select ARCH_REQUIRE_GPIOLIB
Russell King234b6ced2011-05-08 14:09:47 +0100485 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000486 select CPU_XSCALE
Russell Kingb1b3f492012-10-06 17:12:25 +0100487 select DMABOUNCE if PCI
Russell King3b938be2007-05-12 11:25:44 +0100488 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100489 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600490 select NEED_MACH_IO_H
Florian Fainelli9296d942013-04-09 14:29:26 +0200491 select USB_EHCI_BIG_ENDIAN_DESC
Russell King171b3f02013-09-12 21:24:42 +0100492 select USB_EHCI_BIG_ENDIAN_MMIO
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100493 help
Russell King3b938be2007-05-12 11:25:44 +0100494 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100495
Saeed Bisharaedabd382009-08-06 15:12:43 +0300496config ARCH_DOVE
497 bool "Marvell Dove"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300498 select ARCH_REQUIRE_GPIOLIB
Sebastian Hesselbarth756b2532013-05-02 19:56:12 +0100499 select CPU_PJ4
Saeed Bisharaedabd382009-08-06 15:12:43 +0300500 select GENERIC_CLOCKEVENTS
Russell King0f81bd42012-09-09 20:34:13 +0100501 select MIGHT_HAVE_PCI
Russell King171b3f02013-09-12 21:24:42 +0100502 select MVEBU_MBUS
Sebastian Hesselbarth9139acd2012-11-19 10:39:55 +0100503 select PINCTRL
504 select PINCTRL_DOVE
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200505 select PLAT_ORION_LEGACY
Russell King0f81bd42012-09-09 20:34:13 +0100506 select USB_ARCH_HAS_EHCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300507 help
508 Support for the Marvell Dove SoC 88AP510
509
Saeed Bishara651c74c2008-06-22 22:45:06 +0200510config ARCH_KIRKWOOD
511 bool "Marvell Kirkwood"
Andrew Lunn0e2ee0c2013-01-27 11:07:23 +0100512 select ARCH_HAS_CPUFREQ
Erik Benadaa8865652009-05-28 17:08:55 -0700513 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100514 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200515 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100516 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100517 select PCI
Jason Gunthorpe1dc831b2012-11-21 00:19:06 -0700518 select PCI_QUIRKS
Andrew Lunnf9e75922012-11-17 17:00:44 +0100519 select PINCTRL
520 select PINCTRL_KIRKWOOD
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200521 select PLAT_ORION_LEGACY
Saeed Bishara651c74c2008-06-22 22:45:06 +0200522 help
523 Support for the following Marvell Kirkwood series SoCs:
524 88F6180, 88F6192 and 88F6281.
525
Russell King788c9702009-04-26 14:21:59 +0100526config ARCH_MV78XX0
527 bool "Marvell MV78xx0"
Erik Benadaa8865652009-05-28 17:08:55 -0700528 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100529 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100530 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100531 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100532 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200533 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100534 help
535 Support for the following Marvell MV78xx0 series SoCs:
536 MV781x0, MV782x0.
537
538config ARCH_ORION5X
539 bool "Marvell Orion"
540 depends on MMU
Erik Benadaa8865652009-05-28 17:08:55 -0700541 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100542 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100543 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100544 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100545 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200546 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100547 help
548 Support for the following Marvell Orion 5x series SoCs:
549 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
550 Orion-2 (5281), Orion-1-90 (6183).
551
552config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500553 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100554 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100555 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100556 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100557 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100558 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800559 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800560 select IRQ_DOMAIN
Haojian Zhuang0f374562013-04-21 16:53:02 +0800561 select MULTI_IRQ_HANDLER
Russell Kingb1b3f492012-10-06 17:12:25 +0100562 select NEED_MACH_GPIO_H
Axel Lin7c8f86a2012-11-28 14:42:35 +0800563 select PINCTRL
Russell King788c9702009-04-26 14:21:59 +0100564 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400565 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100566 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500567 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100568
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100569config ARCH_KS8695
570 bool "Micrel/Kendin KS8695"
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100571 select ARCH_REQUIRE_GPIOLIB
Linus Walleijc7e783d2012-08-29 20:27:22 +0200572 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100573 select CPU_ARM922T
Linus Walleijc7e783d2012-08-29 20:27:22 +0200574 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100575 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100576 help
577 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
578 System-on-Chip devices.
579
Russell King788c9702009-04-26 14:21:59 +0100580config ARCH_W90X900
581 bool "Nuvoton W90X900 CPU"
wanzongshunc52d3d62009-06-10 15:49:32 +0100582 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100583 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100584 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100585 select CPU_ARM926T
wanzongshun58b53692009-08-14 15:36:44 +0100586 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200587 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100588 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
589 At present, the w90x900 has been renamed nuc900, regarding
590 the ARM series product line, you can login the following
591 link address to know more.
592
593 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
594 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400595
Russell King93e22562012-10-12 14:20:52 +0100596config ARCH_LPC32XX
597 bool "NXP LPC32XX"
598 select ARCH_REQUIRE_GPIOLIB
599 select ARM_AMBA
Russell King40737232011-01-06 22:32:52 +0000600 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100601 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100602 select CPU_ARM926T
603 select GENERIC_CLOCKEVENTS
604 select HAVE_IDE
605 select HAVE_PWM
606 select USB_ARCH_HAS_OHCI
607 select USE_OF
608 help
609 Support for the NXP LPC32XX family of processors
610
Linus Torvalds1da177e2005-04-16 15:20:36 -0700611config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700612 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100613 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100614 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100615 select ARCH_MTD_XIP
616 select ARCH_REQUIRE_GPIOLIB
617 select ARM_CPU_SUSPEND if PM
618 select AUTO_ZRELADDR
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100619 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100620 select CLKSRC_MMIO
Eric Miao981d0f32007-07-24 01:22:43 +0100621 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800622 select GPIO_PXA
Russell Kingb1b3f492012-10-06 17:12:25 +0100623 select HAVE_IDE
624 select MULTI_IRQ_HANDLER
625 select NEED_MACH_GPIO_H
Eric Miaobd5ce432009-01-20 12:06:01 +0800626 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800627 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000628 help
eric miao2c8086a2007-09-11 19:13:17 -0700629 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700630
Russell King788c9702009-04-26 14:21:59 +0100631config ARCH_MSM
632 bool "Qualcomm MSM"
Pavel Machek923a0812010-06-02 11:11:12 -0700633 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800634 select CLKDEV_LOOKUP
Stephen Boydc6025202013-07-24 13:54:30 -0700635 select CLKSRC_OF if OF
Stephen Boyd8cc7f532013-06-17 10:43:19 -0700636 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100637 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800638 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800639 Support for Qualcomm MSM/QSD based systems. This runs on the
640 apps processor of the MSM/QSD and depends on a shared memory
641 interface to the modem processor which runs the baseband
642 stack and controls some vital subsystems
643 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800644
Magnus Dammc793c1b2010-02-05 11:14:49 +0000645config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900646 bool "Renesas SH-Mobile / R-Mobile"
Magnus Damm69469992013-06-10 18:46:47 +0900647 select ARM_PATCH_PHYS_VIRT
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900648 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100649 select GENERIC_CLOCKEVENTS
Stephen Boyd4c3ffff2013-02-27 15:28:14 -0800650 select HAVE_ARM_SCU if SMP
Stephen Boyda894fcc2013-02-15 16:02:20 -0800651 select HAVE_ARM_TWD if SMP
Russell Kingb1b3f492012-10-06 17:12:25 +0100652 select HAVE_CLK
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900653 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000654 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000655 select MIGHT_HAVE_CACHE_L2X0
Magnus Damm60f14352010-12-28 08:26:52 +0000656 select MULTI_IRQ_HANDLER
Russell Kingb1b3f492012-10-06 17:12:25 +0100657 select NO_IOPORT
Laurent Pinchart2cd3c922013-05-31 05:00:27 +0200658 select PINCTRL
Russell Kingb1b3f492012-10-06 17:12:25 +0100659 select PM_GENERIC_DOMAINS if PM
660 select SPARSE_IRQ
Magnus Dammc793c1b2010-02-05 11:14:49 +0000661 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900662 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000663
Linus Torvalds1da177e2005-04-16 15:20:36 -0700664config ARCH_RPC
665 bool "RiscPC"
666 select ARCH_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100667 select ARCH_MAY_HAVE_PC_FDC
Russell King07f841b2008-10-01 17:11:06 +0100668 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000669 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100670 select FIQ
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200671 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100672 select HAVE_PATA_PLATFORM
673 select ISA_DMA_API
Rob Herringc334bc12012-03-04 22:03:33 -0600674 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400675 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100676 select NO_IOPORT
Arnd Bergmannb4811ba2013-03-13 17:36:37 +0100677 select VIRT_TO_BUS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700678 help
679 On the Acorn Risc-PC, Linux can support the internal IDE disk and
680 CD-ROM interface, serial and parallel port, and the floppy drive.
681
682config ARCH_SA1100
683 bool "SA1100-based"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100684 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100685 select ARCH_MTD_XIP
Michael Buesch7444a722008-07-25 01:46:11 -0700686 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100687 select ARCH_SPARSEMEM_ENABLE
688 select CLKDEV_LOOKUP
689 select CLKSRC_MMIO
690 select CPU_FREQ
691 select CPU_SA1100
692 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200693 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100694 select ISA
Rob Herring01464222012-08-28 13:06:41 -0500695 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400696 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100697 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000698 help
699 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700700
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900701config ARCH_S3C24XX
702 bool "Samsung S3C24XX SoCs"
Ben Dooks9d56c022009-07-30 23:23:25 +0100703 select ARCH_HAS_CPUFREQ
Kukjin Kim53650432013-04-04 09:04:30 +0900704 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100705 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200706 select CLKSRC_SAMSUNG_PWM
Romain Naour7f78b6e2013-01-09 18:47:04 -0800707 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900708 select GPIO_SAMSUNG
Russell Kingb1b3f492012-10-06 17:12:25 +0100709 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900710 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900711 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100712 select HAVE_S3C_RTC if RTC_CLASS
Heiko Stuebner17453dd2013-03-07 12:38:25 +0900713 select MULTI_IRQ_HANDLER
Rob Herring01464222012-08-28 13:06:41 -0500714 select NEED_MACH_GPIO_H
Rob Herringc334bc12012-03-04 22:03:33 -0600715 select NEED_MACH_IO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900716 select SAMSUNG_ATAGS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700717 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900718 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
719 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
720 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
721 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900722
Ben Dooksa08ab632008-10-21 14:06:39 +0100723config ARCH_S3C64XX
724 bool "Samsung S3C64XX"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100725 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900726 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100727 select ARM_VIC
728 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200729 select CLKSRC_SAMSUNG_PWM
Tomasz Figab69f4602013-08-26 02:00:38 +0900730 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100731 select CPU_V6
Romain Naour04a49b72013-01-09 18:47:04 -0800732 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900733 select GPIO_SAMSUNG
Russell Kingb1b3f492012-10-06 17:12:25 +0100734 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900735 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900736 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100737 select HAVE_TCM
Rob Herring01464222012-08-28 13:06:41 -0500738 select NEED_MACH_GPIO_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100739 select NO_IOPORT
740 select PLAT_SAMSUNG
741 select S3C_DEV_NAND
742 select S3C_GPIO_TRACK
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900743 select SAMSUNG_ATAGS
Russell Kingb1b3f492012-10-06 17:12:25 +0100744 select SAMSUNG_GPIOLIB_4BIT
Tomasz Figa88f59732013-06-17 23:45:37 +0900745 select SAMSUNG_WDT_RESET
Russell Kingb1b3f492012-10-06 17:12:25 +0100746 select USB_ARCH_HAS_OHCI
Ben Dooksa08ab632008-10-21 14:06:39 +0100747 help
748 Samsung S3C64XX series based systems
749
Kukjin Kim49b7a492010-09-07 15:47:18 +0900750config ARCH_S5P64X0
751 bool "Samsung S5P6440 S5P6450"
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900752 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200753 select CLKSRC_SAMSUNG_PWM
Russell Kingb1b3f492012-10-06 17:12:25 +0100754 select CPU_V6
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900755 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900756 select GPIO_SAMSUNG
Russell Kingb1b3f492012-10-06 17:12:25 +0100757 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900758 select HAVE_S3C2410_I2C if I2C
Russell Kingb1b3f492012-10-06 17:12:25 +0100759 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim754961a2010-11-13 16:11:46 +0900760 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500761 select NEED_MACH_GPIO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900762 select SAMSUNG_ATAGS
Russell King171b3f02013-09-12 21:24:42 +0100763 select SAMSUNG_WDT_RESET
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900764 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900765 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
766 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900767
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200768config ARCH_S5PC100
769 bool "Samsung S5PC100"
Kukjin Kim53650432013-04-04 09:04:30 +0900770 select ARCH_REQUIRE_GPIOLIB
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900771 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200772 select CLKSRC_SAMSUNG_PWM
Byungho Min5a7652f2009-06-23 21:39:42 +0900773 select CPU_V7
Romain Naour6a5a2e32013-01-09 18:47:04 -0800774 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900775 select GPIO_SAMSUNG
Russell Kingb1b3f492012-10-06 17:12:25 +0100776 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900777 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900778 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100779 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500780 select NEED_MACH_GPIO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900781 select SAMSUNG_ATAGS
Russell King171b3f02013-09-12 21:24:42 +0100782 select SAMSUNG_WDT_RESET
Byungho Min5a7652f2009-06-23 21:39:42 +0900783 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200784 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900785
Kukjin Kim170f4e42010-02-24 16:40:44 +0900786config ARCH_S5PV210
787 bool "Samsung S5PV210/S5PC110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100788 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900789 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100790 select ARCH_SPARSEMEM_ENABLE
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900791 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200792 select CLKSRC_SAMSUNG_PWM
Russell Kingb1b3f492012-10-06 17:12:25 +0100793 select CPU_V7
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900794 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900795 select GPIO_SAMSUNG
Russell Kingb1b3f492012-10-06 17:12:25 +0100796 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900797 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900798 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100799 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500800 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400801 select NEED_MACH_MEMORY_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900802 select SAMSUNG_ATAGS
Kukjin Kim170f4e42010-02-24 16:40:44 +0900803 help
804 Samsung S5PV210/S5PC110 series based systems
805
Kukjin Kim83014572011-11-06 13:54:56 +0900806config ARCH_EXYNOS
Russell King93e22562012-10-12 14:20:52 +0100807 bool "Samsung EXYNOS"
Russell Kingb1b3f492012-10-06 17:12:25 +0100808 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900809 select ARCH_HAS_HOLES_MEMORYMODEL
Tomasz Figae245f962013-06-19 01:26:42 +0900810 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100811 select ARCH_SPARSEMEM_ENABLE
Tomasz Figae245f962013-06-19 01:26:42 +0900812 select ARM_GIC
Russell Kingb1b3f492012-10-06 17:12:25 +0100813 select CLKDEV_LOOKUP
Olof Johansson340fcb52013-04-26 11:47:45 -0700814 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100815 select CPU_V7
816 select GENERIC_CLOCKEVENTS
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900817 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900818 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900819 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100820 select HAVE_S3C_RTC if RTC_CLASS
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400821 select NEED_MACH_MEMORY_H
Tomasz Figa6e726ea2013-06-15 09:28:55 +0900822 select SPARSE_IRQ
Tomasz Figaf8b1ac02013-06-15 09:01:11 +0900823 select USE_OF
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900824 help
Kukjin Kim83014572011-11-06 13:54:56 +0900825 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900826
Linus Torvalds1da177e2005-04-16 15:20:36 -0700827config ARCH_SHARK
828 bool "Shark"
Russell Kingb1b3f492012-10-06 17:12:25 +0100829 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000830 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100831 select ISA
832 select ISA_DMA
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400833 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100834 select PCI
Arnd Bergmannb4811ba2013-03-13 17:36:37 +0100835 select VIRT_TO_BUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100836 select ZONE_DMA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000837 help
838 Support for the StrongARM based Digital DNARD machine, also known
839 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700840
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100841config ARCH_DAVINCI
842 bool "TI DaVinci"
Russell Kingb1b3f492012-10-06 17:12:25 +0100843 select ARCH_HAS_HOLES_MEMORYMODEL
David Brownelldce11152008-09-07 23:41:04 -0700844 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100845 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700846 select GENERIC_ALLOCATOR
Russell Kingb1b3f492012-10-06 17:12:25 +0100847 select GENERIC_CLOCKEVENTS
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100848 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100849 select HAVE_IDE
Rob Herring01464222012-08-28 13:06:41 -0500850 select NEED_MACH_GPIO_H
Matt Porter3ad7a422013-03-06 11:15:31 -0500851 select TI_PRIV_EDMA
Sekhar Nori689e3312012-08-28 15:27:52 +0530852 select USE_OF
Russell Kingb1b3f492012-10-06 17:12:25 +0100853 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100854 help
855 Support for TI's DaVinci platform.
856
Tony Lindgrena0694862013-01-11 11:24:20 -0800857config ARCH_OMAP1
858 bool "TI OMAP1"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600859 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100860 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100861 select ARCH_HAS_HOLES_MEMORYMODEL
Tony Lindgrena0694862013-01-11 11:24:20 -0800862 select ARCH_OMAP
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100863 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200864 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100865 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100866 select GENERIC_CLOCKEVENTS
Tony Lindgrena0694862013-01-11 11:24:20 -0800867 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100868 select HAVE_CLK
Tony Lindgrena0694862013-01-11 11:24:20 -0800869 select HAVE_IDE
870 select IRQ_DOMAIN
871 select NEED_MACH_IO_H if PCCARD
872 select NEED_MACH_MEMORY_H
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100873 help
Tony Lindgrena0694862013-01-11 11:24:20 -0800874 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
Binghua Duan02c981c2011-07-08 17:40:12 +0800875
Linus Torvalds1da177e2005-04-16 15:20:36 -0700876endchoice
877
Rob Herring387798b2012-09-06 13:41:12 -0500878menu "Multiple platform selection"
879 depends on ARCH_MULTIPLATFORM
880
881comment "CPU Core family selection"
882
Rob Herring387798b2012-09-06 13:41:12 -0500883config ARCH_MULTI_V4T
884 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500885 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100886 select ARCH_MULTI_V4_V5
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200887 select CPU_ARM920T if !(CPU_ARM7TDMI || CPU_ARM720T || \
888 CPU_ARM740T || CPU_ARM9TDMI || CPU_ARM922T || \
889 CPU_ARM925T || CPU_ARM940T)
Rob Herring387798b2012-09-06 13:41:12 -0500890
891config ARCH_MULTI_V5
892 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500893 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100894 select ARCH_MULTI_V4_V5
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200895 select CPU_ARM926T if (!CPU_ARM946E || CPU_ARM1020 || \
896 CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || \
897 CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_FEROCEON)
Rob Herring387798b2012-09-06 13:41:12 -0500898
899config ARCH_MULTI_V4_V5
900 bool
901
902config ARCH_MULTI_V6
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800903 bool "ARMv6 based platforms (ARM11)"
Rob Herring387798b2012-09-06 13:41:12 -0500904 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100905 select CPU_V6
Rob Herring387798b2012-09-06 13:41:12 -0500906
907config ARCH_MULTI_V7
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800908 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -0500909 default y
910 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100911 select CPU_V7
Rob Herring387798b2012-09-06 13:41:12 -0500912
913config ARCH_MULTI_V6_V7
914 bool
915
916config ARCH_MULTI_CPU_AUTO
917 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
918 select ARCH_MULTI_V5
919
920endmenu
921
Russell Kingccf50e22010-03-15 19:03:06 +0000922#
923# This is sorted alphabetically by mach-* pathname. However, plat-*
924# Kconfigs may be included either alphabetically (according to the
925# plat- suffix) or along side the corresponding mach-* source.
926#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +0200927source "arch/arm/mach-mvebu/Kconfig"
928
Russell King95b8f202010-01-14 11:43:54 +0000929source "arch/arm/mach-at91/Kconfig"
930
Christian Daudt8ac49e02012-11-19 09:46:10 -0800931source "arch/arm/mach-bcm/Kconfig"
932
Stephen Warrenf1ac9222013-03-11 22:40:18 -0600933source "arch/arm/mach-bcm2835/Kconfig"
934
Linus Torvalds1da177e2005-04-16 15:20:36 -0700935source "arch/arm/mach-clps711x/Kconfig"
936
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300937source "arch/arm/mach-cns3xxx/Kconfig"
938
Russell King95b8f202010-01-14 11:43:54 +0000939source "arch/arm/mach-davinci/Kconfig"
940
941source "arch/arm/mach-dove/Kconfig"
942
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000943source "arch/arm/mach-ep93xx/Kconfig"
944
Linus Torvalds1da177e2005-04-16 15:20:36 -0700945source "arch/arm/mach-footbridge/Kconfig"
946
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200947source "arch/arm/mach-gemini/Kconfig"
948
Rob Herring387798b2012-09-06 13:41:12 -0500949source "arch/arm/mach-highbank/Kconfig"
950
Linus Torvalds1da177e2005-04-16 15:20:36 -0700951source "arch/arm/mach-integrator/Kconfig"
952
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100953source "arch/arm/mach-iop32x/Kconfig"
954
955source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700956
Dan Williams285f5fa2006-12-07 02:59:39 +0100957source "arch/arm/mach-iop13xx/Kconfig"
958
Linus Torvalds1da177e2005-04-16 15:20:36 -0700959source "arch/arm/mach-ixp4xx/Kconfig"
960
Santosh Shilimkar828989a2013-06-10 11:27:13 -0400961source "arch/arm/mach-keystone/Kconfig"
962
Russell King95b8f202010-01-14 11:43:54 +0000963source "arch/arm/mach-kirkwood/Kconfig"
964
965source "arch/arm/mach-ks8695/Kconfig"
966
Russell King95b8f202010-01-14 11:43:54 +0000967source "arch/arm/mach-msm/Kconfig"
968
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200969source "arch/arm/mach-mv78xx0/Kconfig"
970
Shawn Guo3995eb82012-09-13 19:48:07 +0800971source "arch/arm/mach-imx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700972
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800973source "arch/arm/mach-mxs/Kconfig"
974
Russell King95b8f202010-01-14 11:43:54 +0000975source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800976
Russell King95b8f202010-01-14 11:43:54 +0000977source "arch/arm/mach-nomadik/Kconfig"
Russell King95b8f202010-01-14 11:43:54 +0000978
Daniel Tang9851ca52013-06-11 18:40:17 +1000979source "arch/arm/mach-nspire/Kconfig"
980
Tony Lindgrend48af152005-07-10 19:58:17 +0100981source "arch/arm/plat-omap/Kconfig"
982
983source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700984
Tony Lindgren1dbae812005-11-10 14:26:51 +0000985source "arch/arm/mach-omap2/Kconfig"
986
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400987source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400988
Rob Herring387798b2012-09-06 13:41:12 -0500989source "arch/arm/mach-picoxcell/Kconfig"
990
Russell King95b8f202010-01-14 11:43:54 +0000991source "arch/arm/mach-pxa/Kconfig"
992source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700993
Russell King95b8f202010-01-14 11:43:54 +0000994source "arch/arm/mach-mmp/Kconfig"
995
996source "arch/arm/mach-realview/Kconfig"
997
Heiko Stuebnerd63dc052013-06-02 23:09:41 +0200998source "arch/arm/mach-rockchip/Kconfig"
999
Russell King95b8f202010-01-14 11:43:54 +00001000source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001001
Ben Dookscf383672009-11-10 00:14:58 +00001002source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001003
Rob Herring387798b2012-09-06 13:41:12 -05001004source "arch/arm/mach-socfpga/Kconfig"
1005
Arnd Bergmanna7ed0992012-12-02 15:12:47 +01001006source "arch/arm/mach-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001007
Srinivas Kandagatla65ebcc12013-06-25 12:15:10 +01001008source "arch/arm/mach-sti/Kconfig"
1009
Kukjin Kim85fd6d62012-02-06 09:38:19 +09001010source "arch/arm/mach-s3c24xx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001011
Ben Dooksa08ab632008-10-21 14:06:39 +01001012if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001013source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001014endif
1015
Kukjin Kim49b7a492010-09-07 15:47:18 +09001016source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001017
Byungho Min5a7652f2009-06-23 21:39:42 +09001018source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001019
Kukjin Kim170f4e42010-02-24 16:40:44 +09001020source "arch/arm/mach-s5pv210/Kconfig"
1021
Kukjin Kim83014572011-11-06 13:54:56 +09001022source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001023
Russell King882d01f2010-03-02 23:40:15 +00001024source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001025
Maxime Ripard3b526342012-11-08 12:40:16 +01001026source "arch/arm/mach-sunxi/Kconfig"
1027
Barry Song156a0992012-08-23 13:41:58 +08001028source "arch/arm/mach-prima2/Kconfig"
1029
Erik Gillingc5f80062010-01-21 16:53:02 -08001030source "arch/arm/mach-tegra/Kconfig"
1031
Russell King95b8f202010-01-14 11:43:54 +00001032source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001033
Russell King95b8f202010-01-14 11:43:54 +00001034source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001035
1036source "arch/arm/mach-versatile/Kconfig"
1037
Russell Kingceade892010-02-11 21:44:53 +00001038source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001039source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001040
Marc Zyngier2a0ba732012-10-05 13:47:39 +01001041source "arch/arm/mach-virt/Kconfig"
1042
Tony Prisk6f35f9a2012-10-11 20:13:09 +13001043source "arch/arm/mach-vt8500/Kconfig"
1044
wanzongshun7ec80dd2008-12-03 03:55:38 +01001045source "arch/arm/mach-w90x900/Kconfig"
1046
Josh Cartwright9a45eb62012-11-19 11:38:29 -06001047source "arch/arm/mach-zynq/Kconfig"
1048
Linus Torvalds1da177e2005-04-16 15:20:36 -07001049# Definitions to make life easier
1050config ARCH_ACORN
1051 bool
1052
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001053config PLAT_IOP
1054 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001055 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001056
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001057config PLAT_ORION
1058 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001059 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +01001060 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001061 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +02001062 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001063
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +02001064config PLAT_ORION_LEGACY
1065 bool
1066 select PLAT_ORION
1067
Eric Miaobd5ce432009-01-20 12:06:01 +08001068config PLAT_PXA
1069 bool
1070
Russell Kingf4b8b312010-01-14 12:48:06 +00001071config PLAT_VERSATILE
1072 bool
1073
Russell Kinge3887712010-01-14 13:30:16 +00001074config ARM_TIMER_SP804
1075 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001076 select CLKSRC_MMIO
Rob Herring7a0eca72013-03-25 11:23:52 -05001077 select CLKSRC_OF if OF
Russell Kinge3887712010-01-14 13:30:16 +00001078
Linus Torvalds1da177e2005-04-16 15:20:36 -07001079source arch/arm/mm/Kconfig
1080
Russell King958cab02011-12-11 10:04:00 +00001081config ARM_NR_BANKS
1082 int
1083 default 16 if ARCH_EP93XX
1084 default 8
1085
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001086config IWMMXT
Russell King698613b2013-04-03 16:33:26 +01001087 bool "Enable iWMMXt support" if !CPU_PJ4
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001088 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
Russell King698613b2013-04-03 16:33:26 +01001089 default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001090 help
1091 Enable support for iWMMXt context switching at run time if
1092 running on a CPU that supports it.
1093
Linus Torvalds1da177e2005-04-16 15:20:36 -07001094config XSCALE_PMU
1095 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001096 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001097 default y
1098
eric miao52108642010-12-13 09:42:34 +01001099config MULTI_IRQ_HANDLER
1100 bool
1101 help
1102 Allow each machine to specify it's own IRQ handler at run time.
1103
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001104if !MMU
1105source "arch/arm/Kconfig-nommu"
1106endif
1107
Gregory CLEMENT3e0a07f2013-06-23 10:17:11 +01001108config PJ4B_ERRATA_4742
1109 bool "PJ4B Errata 4742: IDLE Wake Up Commands can Cause the CPU Core to Cease Operation"
1110 depends on CPU_PJ4B && MACH_ARMADA_370
1111 default y
1112 help
1113 When coming out of either a Wait for Interrupt (WFI) or a Wait for
1114 Event (WFE) IDLE states, a specific timing sensitivity exists between
1115 the retiring WFI/WFE instructions and the newly issued subsequent
1116 instructions. This sensitivity can result in a CPU hang scenario.
1117 Workaround:
1118 The software must insert either a Data Synchronization Barrier (DSB)
1119 or Data Memory Barrier (DMB) command immediately after the WFI/WFE
1120 instruction
1121
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001122config ARM_ERRATA_326103
1123 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1124 depends on CPU_V6
1125 help
1126 Executing a SWP instruction to read-only memory does not set bit 11
1127 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1128 treat the access as a read, preventing a COW from occurring and
1129 causing the faulting task to livelock.
1130
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001131config ARM_ERRATA_411920
1132 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001133 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001134 help
1135 Invalidation of the Instruction Cache operation can
1136 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1137 It does not affect the MPCore. This option enables the ARM Ltd.
1138 recommended workaround.
1139
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001140config ARM_ERRATA_430973
1141 bool "ARM errata: Stale prediction on replaced interworking branch"
1142 depends on CPU_V7
1143 help
1144 This option enables the workaround for the 430973 Cortex-A8
1145 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1146 interworking branch is replaced with another code sequence at the
1147 same virtual address, whether due to self-modifying code or virtual
1148 to physical address re-mapping, Cortex-A8 does not recover from the
1149 stale interworking branch prediction. This results in Cortex-A8
1150 executing the new code sequence in the incorrect ARM or Thumb state.
1151 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1152 and also flushes the branch target cache at every context switch.
1153 Note that setting specific bits in the ACTLR register may not be
1154 available in non-secure mode.
1155
Catalin Marinas855c5512009-04-30 17:06:15 +01001156config ARM_ERRATA_458693
1157 bool "ARM errata: Processor deadlock when a false hazard is created"
1158 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001159 depends on !ARCH_MULTIPLATFORM
Catalin Marinas855c5512009-04-30 17:06:15 +01001160 help
1161 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1162 erratum. For very specific sequences of memory operations, it is
1163 possible for a hazard condition intended for a cache line to instead
1164 be incorrectly associated with a different cache line. This false
1165 hazard might then cause a processor deadlock. The workaround enables
1166 the L1 caching of the NEON accesses and disables the PLD instruction
1167 in the ACTLR register. Note that setting specific bits in the ACTLR
1168 register may not be available in non-secure mode.
1169
Catalin Marinas0516e462009-04-30 17:06:20 +01001170config ARM_ERRATA_460075
1171 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1172 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001173 depends on !ARCH_MULTIPLATFORM
Catalin Marinas0516e462009-04-30 17:06:20 +01001174 help
1175 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1176 erratum. Any asynchronous access to the L2 cache may encounter a
1177 situation in which recent store transactions to the L2 cache are lost
1178 and overwritten with stale memory contents from external memory. The
1179 workaround disables the write-allocate mode for the L2 cache via the
1180 ACTLR register. Note that setting specific bits in the ACTLR register
1181 may not be available in non-secure mode.
1182
Will Deacon9f050272010-09-14 09:51:43 +01001183config ARM_ERRATA_742230
1184 bool "ARM errata: DMB operation may be faulty"
1185 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001186 depends on !ARCH_MULTIPLATFORM
Will Deacon9f050272010-09-14 09:51:43 +01001187 help
1188 This option enables the workaround for the 742230 Cortex-A9
1189 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1190 between two write operations may not ensure the correct visibility
1191 ordering of the two writes. This workaround sets a specific bit in
1192 the diagnostic register of the Cortex-A9 which causes the DMB
1193 instruction to behave as a DSB, ensuring the correct behaviour of
1194 the two writes.
1195
Will Deacona672e992010-09-14 09:53:02 +01001196config ARM_ERRATA_742231
1197 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1198 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001199 depends on !ARCH_MULTIPLATFORM
Will Deacona672e992010-09-14 09:53:02 +01001200 help
1201 This option enables the workaround for the 742231 Cortex-A9
1202 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1203 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1204 accessing some data located in the same cache line, may get corrupted
1205 data due to bad handling of the address hazard when the line gets
1206 replaced from one of the CPUs at the same time as another CPU is
1207 accessing it. This workaround sets specific bits in the diagnostic
1208 register of the Cortex-A9 which reduces the linefill issuing
1209 capabilities of the processor.
1210
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001211config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001212 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001213 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001214 help
1215 The PL310 L2 cache controller implements three types of Clean &
1216 Invalidate maintenance operations: by Physical Address
1217 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1218 They are architecturally defined to behave as the execution of a
1219 clean operation followed immediately by an invalidate operation,
1220 both performing to the same memory location. This functionality
1221 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001222 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001223
Jon Medhurst69155792013-06-07 10:35:35 +01001224config ARM_ERRATA_643719
1225 bool "ARM errata: LoUIS bit field in CLIDR register is incorrect"
1226 depends on CPU_V7 && SMP
1227 help
1228 This option enables the workaround for the 643719 Cortex-A9 (prior to
1229 r1p0) erratum. On affected cores the LoUIS bit field of the CLIDR
1230 register returns zero when it should return one. The workaround
1231 corrects this value, ensuring cache maintenance operations which use
1232 it behave as intended and avoiding data corruption.
1233
Will Deaconcdf357f2010-08-05 11:20:51 +01001234config ARM_ERRATA_720789
1235 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001236 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001237 help
1238 This option enables the workaround for the 720789 Cortex-A9 (prior to
1239 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1240 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1241 As a consequence of this erratum, some TLB entries which should be
1242 invalidated are not, resulting in an incoherency in the system page
1243 tables. The workaround changes the TLB flushing routines to invalidate
1244 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001245
Russell King1f0090a2011-03-16 23:35:25 +00001246config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001247 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001248 depends on CACHE_L2X0
1249 help
1250 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1251 operation (offset 0x7FC). This operation runs in background so that
1252 PL310 can handle normal accesses while it is in progress. Under very
1253 rare circumstances, due to this erratum, write data can be lost when
1254 PL310 treats a cacheable write transaction during a Clean &
1255 Invalidate by Way operation.
1256
Will Deacon475d92f2010-09-28 14:02:02 +01001257config ARM_ERRATA_743622
1258 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1259 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001260 depends on !ARCH_MULTIPLATFORM
Will Deacon475d92f2010-09-28 14:02:02 +01001261 help
1262 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001263 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001264 optimisation in the Cortex-A9 Store Buffer may lead to data
1265 corruption. This workaround sets a specific bit in the diagnostic
1266 register of the Cortex-A9 which disables the Store Buffer
1267 optimisation, preventing the defect from occurring. This has no
1268 visible impact on the overall performance or power consumption of the
1269 processor.
1270
Will Deacon9a27c272011-02-18 16:36:35 +01001271config ARM_ERRATA_751472
1272 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001273 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001274 depends on !ARCH_MULTIPLATFORM
Will Deacon9a27c272011-02-18 16:36:35 +01001275 help
1276 This option enables the workaround for the 751472 Cortex-A9 (prior
1277 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1278 completion of a following broadcasted operation if the second
1279 operation is received by a CPU before the ICIALLUIS has completed,
1280 potentially leading to corrupted entries in the cache or TLB.
1281
Will Deaconfa0ce402011-11-14 17:24:57 +01001282config PL310_ERRATA_753970
1283 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001284 depends on CACHE_PL310
1285 help
1286 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1287
1288 Under some condition the effect of cache sync operation on
1289 the store buffer still remains when the operation completes.
1290 This means that the store buffer is always asked to drain and
1291 this prevents it from merging any further writes. The workaround
1292 is to replace the normal offset of cache sync operation (0x730)
1293 by another offset targeting an unmapped PL310 register 0x740.
1294 This has the same effect as the cache sync operation: store buffer
1295 drain and waiting for all buffers empty.
1296
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001297config ARM_ERRATA_754322
1298 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1299 depends on CPU_V7
1300 help
1301 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1302 r3p*) erratum. A speculative memory access may cause a page table walk
1303 which starts prior to an ASID switch but completes afterwards. This
1304 can populate the micro-TLB with a stale entry which may be hit with
1305 the new ASID. This workaround places two dsb instructions in the mm
1306 switching code so that no page table walks can cross the ASID switch.
1307
Will Deacon5dab26af2011-03-04 12:38:54 +01001308config ARM_ERRATA_754327
1309 bool "ARM errata: no automatic Store Buffer drain"
1310 depends on CPU_V7 && SMP
1311 help
1312 This option enables the workaround for the 754327 Cortex-A9 (prior to
1313 r2p0) erratum. The Store Buffer does not have any automatic draining
1314 mechanism and therefore a livelock may occur if an external agent
1315 continuously polls a memory location waiting to observe an update.
1316 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1317 written polling loops from denying visibility of updates to memory.
1318
Catalin Marinas145e10e2011-08-15 11:04:41 +01001319config ARM_ERRATA_364296
1320 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
Fabio Estevamfd832472013-07-09 18:34:01 +01001321 depends on CPU_V6
Catalin Marinas145e10e2011-08-15 11:04:41 +01001322 help
1323 This options enables the workaround for the 364296 ARM1136
1324 r0p2 erratum (possible cache data corruption with
1325 hit-under-miss enabled). It sets the undocumented bit 31 in
1326 the auxiliary control register and the FI bit in the control
1327 register, thus disabling hit-under-miss without putting the
1328 processor into full low interrupt latency mode. ARM11MPCore
1329 is not affected.
1330
Will Deaconf630c1b2011-09-15 11:45:15 +01001331config ARM_ERRATA_764369
1332 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1333 depends on CPU_V7 && SMP
1334 help
1335 This option enables the workaround for erratum 764369
1336 affecting Cortex-A9 MPCore with two or more processors (all
1337 current revisions). Under certain timing circumstances, a data
1338 cache line maintenance operation by MVA targeting an Inner
1339 Shareable memory region may fail to proceed up to either the
1340 Point of Coherency or to the Point of Unification of the
1341 system. This workaround adds a DSB instruction before the
1342 relevant cache maintenance functions and sets a specific bit
1343 in the diagnostic control register of the SCU.
1344
Will Deacon11ed0ba2011-11-14 17:24:58 +01001345config PL310_ERRATA_769419
1346 bool "PL310 errata: no automatic Store Buffer drain"
1347 depends on CACHE_L2X0
1348 help
1349 On revisions of the PL310 prior to r3p2, the Store Buffer does
1350 not automatically drain. This can cause normal, non-cacheable
1351 writes to be retained when the memory system is idle, leading
1352 to suboptimal I/O performance for drivers using coherent DMA.
1353 This option adds a write barrier to the cpu_idle loop so that,
1354 on systems with an outer cache, the store buffer is drained
1355 explicitly.
1356
Simon Horman7253b852012-09-28 02:12:45 +01001357config ARM_ERRATA_775420
1358 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1359 depends on CPU_V7
1360 help
1361 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1362 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1363 operation aborts with MMU exception, it might cause the processor
1364 to deadlock. This workaround puts DSB before executing ISB if
1365 an abort may occur on cache maintenance.
1366
Catalin Marinas93dc6882013-03-26 23:35:04 +01001367config ARM_ERRATA_798181
1368 bool "ARM errata: TLBI/DSB failure on Cortex-A15"
1369 depends on CPU_V7 && SMP
1370 help
1371 On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
1372 adequately shooting down all use of the old entries. This
1373 option enables the Linux kernel workaround for this erratum
1374 which sends an IPI to the CPUs that are running the same ASID
1375 as the one being invalidated.
1376
Will Deacon84b65042013-08-20 17:29:55 +01001377config ARM_ERRATA_773022
1378 bool "ARM errata: incorrect instructions may be executed from loop buffer"
1379 depends on CPU_V7
1380 help
1381 This option enables the workaround for the 773022 Cortex-A15
1382 (up to r0p4) erratum. In certain rare sequences of code, the
1383 loop buffer may deliver incorrect instructions. This
1384 workaround disables the loop buffer to avoid the erratum.
1385
Linus Torvalds1da177e2005-04-16 15:20:36 -07001386endmenu
1387
1388source "arch/arm/common/Kconfig"
1389
Linus Torvalds1da177e2005-04-16 15:20:36 -07001390menu "Bus support"
1391
1392config ARM_AMBA
1393 bool
1394
1395config ISA
1396 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001397 help
1398 Find out whether you have ISA slots on your motherboard. ISA is the
1399 name of a bus system, i.e. the way the CPU talks to the other stuff
1400 inside your box. Other bus systems are PCI, EISA, MicroChannel
1401 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1402 newer boards don't support it. If you have ISA, say Y, otherwise N.
1403
Russell King065909b2006-01-04 15:44:16 +00001404# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001405config ISA_DMA
1406 bool
Russell King065909b2006-01-04 15:44:16 +00001407 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001408
Russell King065909b2006-01-04 15:44:16 +00001409# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001410config ISA_DMA_API
1411 bool
Al Viro5cae8412005-05-04 05:39:22 +01001412
Linus Torvalds1da177e2005-04-16 15:20:36 -07001413config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001414 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001415 help
1416 Find out whether you have a PCI motherboard. PCI is the name of a
1417 bus system, i.e. the way the CPU talks to the other stuff inside
1418 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1419 VESA. If you have PCI, say Y, otherwise N.
1420
Anton Vorontsov52882172010-04-19 13:20:49 +01001421config PCI_DOMAINS
1422 bool
1423 depends on PCI
1424
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001425config PCI_NANOENGINE
1426 bool "BSE nanoEngine PCI support"
1427 depends on SA1100_NANOENGINE
1428 help
1429 Enable PCI on the BSE nanoEngine board.
1430
Matthew Wilcox36e23592007-07-10 10:54:40 -06001431config PCI_SYSCALL
1432 def_bool PCI
1433
Linus Torvalds1da177e2005-04-16 15:20:36 -07001434# Select the host bridge type
1435config PCI_HOST_VIA82C505
1436 bool
1437 depends on PCI && ARCH_SHARK
1438 default y
1439
Mike Rapoporta0113a92007-11-25 08:55:34 +01001440config PCI_HOST_ITE8152
1441 bool
1442 depends on PCI && MACH_ARMCORE
1443 default y
1444 select DMABOUNCE
1445
Linus Torvalds1da177e2005-04-16 15:20:36 -07001446source "drivers/pci/Kconfig"
Jingoo Han3f06d152013-06-21 16:25:29 +09001447source "drivers/pci/pcie/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001448
1449source "drivers/pcmcia/Kconfig"
1450
1451endmenu
1452
1453menu "Kernel Features"
1454
Dave Martin3b556582011-12-07 15:38:04 +00001455config HAVE_SMP
1456 bool
1457 help
1458 This option should be selected by machines which have an SMP-
1459 capable CPU.
1460
1461 The only effect of this option is to make the SMP-related
1462 options available to the user for configuration.
1463
Linus Torvalds1da177e2005-04-16 15:20:36 -07001464config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001465 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001466 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001467 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001468 depends on HAVE_SMP
Jonathan Austin801bb212013-02-22 18:56:04 +00001469 depends on MMU || ARM_MPU
Russell Kingb1b3f492012-10-06 17:12:25 +01001470 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001471 help
1472 This enables support for systems with more than one CPU. If you have
1473 a system with only one CPU, like most personal computers, say N. If
1474 you have a system with more than one CPU, say Y.
1475
1476 If you say N here, the kernel will run on single and multiprocessor
1477 machines, but will use only one CPU of a multiprocessor machine. If
1478 you say Y here, the kernel will run on many, but not all, single
1479 processor machines. On a single processor machine, the kernel will
1480 run faster if you say N here.
1481
Paul Bolle395cf962011-08-15 02:02:26 +02001482 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001483 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001484 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001485
1486 If you don't know what to do here, say N.
1487
Russell Kingf00ec482010-09-04 10:47:48 +01001488config SMP_ON_UP
1489 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
Jonathan Austin801bb212013-02-22 18:56:04 +00001490 depends on SMP && !XIP_KERNEL && MMU
Russell Kingf00ec482010-09-04 10:47:48 +01001491 default y
1492 help
1493 SMP kernels contain instructions which fail on non-SMP processors.
1494 Enabling this option allows the kernel to modify itself to make
1495 these instructions safe. Disabling it allows about 1K of space
1496 savings.
1497
1498 If you don't know what to do here, say Y.
1499
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001500config ARM_CPU_TOPOLOGY
1501 bool "Support cpu topology definition"
1502 depends on SMP && CPU_V7
1503 default y
1504 help
1505 Support ARM cpu topology definition. The MPIDR register defines
1506 affinity between processors which is then used to describe the cpu
1507 topology of an ARM System.
1508
1509config SCHED_MC
1510 bool "Multi-core scheduler support"
1511 depends on ARM_CPU_TOPOLOGY
1512 help
1513 Multi-core scheduler support improves the CPU scheduler's decision
1514 making when dealing with multi-core CPU chips at a cost of slightly
1515 increased overhead in some places. If unsure say N here.
1516
1517config SCHED_SMT
1518 bool "SMT scheduler support"
1519 depends on ARM_CPU_TOPOLOGY
1520 help
1521 Improves the CPU scheduler's decision making when dealing with
1522 MultiThreading at a cost of slightly increased overhead in some
1523 places. If unsure say N here.
1524
Russell Kinga8cbcd92009-05-16 11:51:14 +01001525config HAVE_ARM_SCU
1526 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001527 help
1528 This option enables support for the ARM system coherency unit
1529
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001530config HAVE_ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001531 bool "Architected timer support"
1532 depends on CPU_V7
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001533 select ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001534 help
1535 This option enables support for the ARM architected timer
1536
Russell Kingf32f4ce2009-05-16 12:14:21 +01001537config HAVE_ARM_TWD
1538 bool
1539 depends on SMP
Rob Herringda4a6862013-02-06 21:17:47 -06001540 select CLKSRC_OF if OF
Russell Kingf32f4ce2009-05-16 12:14:21 +01001541 help
1542 This options enables support for the ARM timer and watchdog unit
1543
Nicolas Pitree8db2882012-04-12 02:45:22 -04001544config MCPM
1545 bool "Multi-Cluster Power Management"
1546 depends on CPU_V7 && SMP
1547 help
1548 This option provides the common power management infrastructure
1549 for (multi-)cluster based systems, such as big.LITTLE based
1550 systems.
1551
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001552choice
1553 prompt "Memory split"
1554 default VMSPLIT_3G
1555 help
1556 Select the desired split between kernel and user memory.
1557
1558 If you are not absolutely sure what you are doing, leave this
1559 option alone!
1560
1561 config VMSPLIT_3G
1562 bool "3G/1G user/kernel split"
1563 config VMSPLIT_2G
1564 bool "2G/2G user/kernel split"
1565 config VMSPLIT_1G
1566 bool "1G/3G user/kernel split"
1567endchoice
1568
1569config PAGE_OFFSET
1570 hex
1571 default 0x40000000 if VMSPLIT_1G
1572 default 0x80000000 if VMSPLIT_2G
1573 default 0xC0000000
1574
Linus Torvalds1da177e2005-04-16 15:20:36 -07001575config NR_CPUS
1576 int "Maximum number of CPUs (2-32)"
1577 range 2 32
1578 depends on SMP
1579 default "4"
1580
Russell Kinga054a812005-11-02 22:24:33 +00001581config HOTPLUG_CPU
Russell King00b7ded2012-10-22 22:54:30 +01001582 bool "Support for hot-pluggable CPUs"
Stephen Rothwell40b31362013-05-21 13:49:35 +10001583 depends on SMP
Russell Kinga054a812005-11-02 22:24:33 +00001584 help
1585 Say Y here to experiment with turning CPUs off and on. CPUs
1586 can be controlled through /sys/devices/system/cpu.
1587
Will Deacon2bdd4242012-12-12 19:20:52 +00001588config ARM_PSCI
1589 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1590 depends on CPU_V7
1591 help
1592 Say Y here if you want Linux to communicate with system firmware
1593 implementing the PSCI specification for CPU-centric power
1594 management operations described in ARM document number ARM DEN
1595 0022A ("Power State Coordination Interface System Software on
1596 ARM processors").
1597
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001598# The GPIO number here must be sorted by descending number. In case of
1599# a multiplatform kernel, we just want the highest value required by the
1600# selected platforms.
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001601config ARCH_NR_GPIO
1602 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001603 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
R Sricharan6d0fc192013-02-07 17:43:35 +05301604 default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || SOC_DRA7XX
Olof Johansson06b851e2013-04-02 18:33:58 -07001605 default 392 if ARCH_U8500
Tony Prisk01bb9142013-03-09 18:22:30 +13001606 default 352 if ARCH_VT8500
1607 default 288 if ARCH_SUNXI
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001608 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001609 default 0
1610 help
1611 Maximum number of GPIOs in the system.
1612
1613 If unsure, leave the default value.
1614
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001615source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001616
Russell Kingc9218b12013-04-27 23:31:10 +01001617config HZ_FIXED
Russell Kingf8065812006-03-02 22:41:59 +00001618 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001619 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001620 ARCH_S5PV210 || ARCH_EXYNOS4
David Brownell5248c652007-11-12 17:59:10 +01001621 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001622 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell King47d84682013-09-10 23:47:55 +01001623 default 0
Russell Kingc9218b12013-04-27 23:31:10 +01001624
1625choice
Russell King47d84682013-09-10 23:47:55 +01001626 depends on HZ_FIXED = 0
Russell Kingc9218b12013-04-27 23:31:10 +01001627 prompt "Timer frequency"
1628
1629config HZ_100
1630 bool "100 Hz"
1631
1632config HZ_200
1633 bool "200 Hz"
1634
1635config HZ_250
1636 bool "250 Hz"
1637
1638config HZ_300
1639 bool "300 Hz"
1640
1641config HZ_500
1642 bool "500 Hz"
1643
1644config HZ_1000
1645 bool "1000 Hz"
1646
1647endchoice
1648
1649config HZ
1650 int
Russell King47d84682013-09-10 23:47:55 +01001651 default HZ_FIXED if HZ_FIXED != 0
Russell Kingc9218b12013-04-27 23:31:10 +01001652 default 100 if HZ_100
1653 default 200 if HZ_200
1654 default 250 if HZ_250
1655 default 300 if HZ_300
1656 default 500 if HZ_500
1657 default 1000
1658
1659config SCHED_HRTICK
1660 def_bool HIGH_RES_TIMERS
Russell Kingf8065812006-03-02 22:41:59 +00001661
Russell Kingb28748f2013-02-17 14:40:33 +00001662config SCHED_HRTICK
1663 def_bool HIGH_RES_TIMERS
1664
Catalin Marinas16c79652009-07-24 12:33:02 +01001665config THUMB2_KERNEL
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001666 bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
Uwe Kleine-König4477ca42013-03-21 21:02:37 +01001667 depends on (CPU_V7 || CPU_V7M) && !CPU_V6 && !CPU_V6K
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001668 default y if CPU_THUMBONLY
Catalin Marinas16c79652009-07-24 12:33:02 +01001669 select AEABI
1670 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001671 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001672 help
1673 By enabling this option, the kernel will be compiled in
1674 Thumb-2 mode. A compiler/assembler that understand the unified
1675 ARM-Thumb syntax is needed.
1676
1677 If unsure, say N.
1678
Dave Martin6f685c52011-03-03 11:41:12 +01001679config THUMB2_AVOID_R_ARM_THM_JUMP11
1680 bool "Work around buggy Thumb-2 short branch relocations in gas"
1681 depends on THUMB2_KERNEL && MODULES
1682 default y
1683 help
1684 Various binutils versions can resolve Thumb-2 branches to
1685 locally-defined, preemptible global symbols as short-range "b.n"
1686 branch instructions.
1687
1688 This is a problem, because there's no guarantee the final
1689 destination of the symbol, or any candidate locations for a
1690 trampoline, are within range of the branch. For this reason, the
1691 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1692 relocation in modules at all, and it makes little sense to add
1693 support.
1694
1695 The symptom is that the kernel fails with an "unsupported
1696 relocation" error when loading some modules.
1697
1698 Until fixed tools are available, passing
1699 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1700 code which hits this problem, at the cost of a bit of extra runtime
1701 stack usage in some cases.
1702
1703 The problem is described in more detail at:
1704 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1705
1706 Only Thumb-2 kernels are affected.
1707
1708 Unless you are sure your tools don't have this problem, say Y.
1709
Catalin Marinas0becb082009-07-24 12:32:53 +01001710config ARM_ASM_UNIFIED
1711 bool
1712
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001713config AEABI
1714 bool "Use the ARM EABI to compile the kernel"
1715 help
1716 This option allows for the kernel to be compiled using the latest
1717 ARM ABI (aka EABI). This is only useful if you are using a user
1718 space environment that is also compiled with EABI.
1719
1720 Since there are major incompatibilities between the legacy ABI and
1721 EABI, especially with regard to structure member alignment, this
1722 option also changes the kernel syscall calling convention to
1723 disambiguate both ABIs and allow for backward compatibility support
1724 (selected with CONFIG_OABI_COMPAT).
1725
1726 To use this you need GCC version 4.0.0 or later.
1727
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001728config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001729 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001730 depends on AEABI && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001731 default y
1732 help
1733 This option preserves the old syscall interface along with the
1734 new (ARM EABI) one. It also provides a compatibility layer to
1735 intercept syscalls that have structure arguments which layout
1736 in memory differs between the legacy ABI and the new ARM EABI
1737 (only for non "thumb" binaries). This option adds a tiny
1738 overhead to all syscalls and produces a slightly larger kernel.
1739 If you know you'll be using only pure EABI user space then you
1740 can say N here. If this option is not selected and you attempt
1741 to execute a legacy ABI binary then the result will be
1742 UNPREDICTABLE (in fact it can be predicted that it won't work
1743 at all). If in doubt say Y.
1744
Mel Gormaneb335752009-05-13 17:34:48 +01001745config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001746 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001747
Russell King05944d72006-11-30 20:43:51 +00001748config ARCH_SPARSEMEM_ENABLE
1749 bool
1750
Russell King07a2f732008-10-01 21:39:58 +01001751config ARCH_SPARSEMEM_DEFAULT
1752 def_bool ARCH_SPARSEMEM_ENABLE
1753
Russell King05944d72006-11-30 20:43:51 +00001754config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001755 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001756
Will Deacon7b7bf492011-05-19 13:21:14 +01001757config HAVE_ARCH_PFN_VALID
1758 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1759
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001760config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001761 bool "High Memory Support"
1762 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001763 help
1764 The address space of ARM processors is only 4 Gigabytes large
1765 and it has to accommodate user address space, kernel address
1766 space as well as some memory mapped IO. That means that, if you
1767 have a large amount of physical memory and/or IO, not all of the
1768 memory can be "permanently mapped" by the kernel. The physical
1769 memory that is not permanently mapped is called "high memory".
1770
1771 Depending on the selected kernel/user memory split, minimum
1772 vmalloc space and actual amount of RAM, you may not need this
1773 option which should result in a slightly faster kernel.
1774
1775 If unsure, say n.
1776
Russell King65cec8e2009-08-17 20:02:06 +01001777config HIGHPTE
1778 bool "Allocate 2nd-level pagetables from highmem"
1779 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001780
Jamie Iles1b8873a2010-02-02 20:25:44 +01001781config HW_PERF_EVENTS
1782 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001783 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001784 default y
1785 help
1786 Enable hardware performance counter support for perf events. If
1787 disabled, perf events will use software events only.
1788
Catalin Marinas1355e2a2012-07-25 14:32:38 +01001789config SYS_SUPPORTS_HUGETLBFS
1790 def_bool y
1791 depends on ARM_LPAE
1792
Catalin Marinas8d962502012-07-25 14:39:26 +01001793config HAVE_ARCH_TRANSPARENT_HUGEPAGE
1794 def_bool y
1795 depends on ARM_LPAE
1796
Steven Capper4bfab202013-07-26 14:58:22 +01001797config ARCH_WANT_GENERAL_HUGETLB
1798 def_bool y
1799
Dave Hansen3f22ab22005-06-23 00:07:43 -07001800source "mm/Kconfig"
1801
Magnus Dammc1b2d972010-07-05 10:00:11 +01001802config FORCE_MAX_ZONEORDER
1803 int "Maximum zone order" if ARCH_SHMOBILE
1804 range 11 64 if ARCH_SHMOBILE
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001805 default "12" if SOC_AM33XX
Magnus Dammc1b2d972010-07-05 10:00:11 +01001806 default "9" if SA1111
1807 default "11"
1808 help
1809 The kernel memory allocator divides physically contiguous memory
1810 blocks into "zones", where each zone is a power of two number of
1811 pages. This option selects the largest power of two that the kernel
1812 keeps in the memory allocator. If you need to allocate very large
1813 blocks of physically contiguous memory, then you may need to
1814 increase this value.
1815
1816 This config option is actually maximum order plus one. For example,
1817 a value of 11 means that the largest free memory block is 2^10 pages.
1818
Linus Torvalds1da177e2005-04-16 15:20:36 -07001819config ALIGNMENT_TRAP
1820 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001821 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001822 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001823 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001824 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001825 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001826 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1827 address divisible by 4. On 32-bit ARM processors, these non-aligned
1828 fetch/store instructions will be emulated in software if you say
1829 here, which has a severe performance impact. This is necessary for
1830 correct operation of some network protocols. With an IP-only
1831 configuration it is safe to say N, otherwise say Y.
1832
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001833config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001834 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1835 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001836 default y if CPU_FEROCEON
1837 help
1838 Implement faster copy_to_user and clear_user methods for CPU
1839 cores where a 8-word STM instruction give significantly higher
1840 memory write throughput than a sequence of individual 32bit stores.
1841
1842 A possible side effect is a slight increase in scheduling latency
1843 between threads sharing the same address space if they invoke
1844 such copy operations with large buffers.
1845
1846 However, if the CPU data cache is using a write-allocate mode,
1847 this option is unlikely to provide any performance gain.
1848
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001849config SECCOMP
1850 bool
1851 prompt "Enable seccomp to safely compute untrusted bytecode"
1852 ---help---
1853 This kernel feature is useful for number crunching applications
1854 that may need to compute untrusted bytecode during their
1855 execution. By using pipes or other transports made available to
1856 the process as file descriptors supporting the read/write
1857 syscalls, it's possible to isolate those applications in
1858 their own address space using seccomp. Once seccomp is
1859 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1860 and the task is only allowed to execute a few safe syscalls
1861 defined by each seccomp mode.
1862
Nicolas Pitrec743f382010-05-24 23:55:42 -04001863config CC_STACKPROTECTOR
1864 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1865 help
1866 This option turns on the -fstack-protector GCC feature. This
1867 feature puts, at the beginning of functions, a canary value on
1868 the stack just before the return address, and validates
1869 the value just before actually returning. Stack based buffer
1870 overflows (that need to overwrite this return address) now also
1871 overwrite the canary, which gets detected and the attack is then
1872 neutralized via a kernel panic.
1873 This feature requires gcc version 4.2 or above.
1874
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001875config XEN_DOM0
1876 def_bool y
1877 depends on XEN
1878
1879config XEN
1880 bool "Xen guest support on ARM (EXPERIMENTAL)"
Ian Campbell85323a92013-03-07 07:17:25 +00001881 depends on ARM && AEABI && OF
Arnd Bergmannf880b672012-10-09 10:33:52 +00001882 depends on CPU_V7 && !CPU_V6
Ian Campbell85323a92013-03-07 07:17:25 +00001883 depends on !GENERIC_ATOMIC64
Stefano Stabellini17b7ab82013-04-24 18:47:18 +00001884 select ARM_PSCI
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001885 help
1886 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1887
Linus Torvalds1da177e2005-04-16 15:20:36 -07001888endmenu
1889
1890menu "Boot options"
1891
Grant Likely9eb8f672011-04-28 14:27:20 -06001892config USE_OF
1893 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001894 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001895 select OF
1896 select OF_EARLY_FLATTREE
1897 help
1898 Include support for flattened device tree machine descriptions.
1899
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001900config ATAGS
1901 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1902 default y
1903 help
1904 This is the traditional way of passing data to the kernel at boot
1905 time. If you are solely relying on the flattened device tree (or
1906 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1907 to remove ATAGS support from your kernel binary. If unsure,
1908 leave this to y.
1909
1910config DEPRECATED_PARAM_STRUCT
1911 bool "Provide old way to pass kernel parameters"
1912 depends on ATAGS
1913 help
1914 This was deprecated in 2001 and announced to live on for 5 years.
1915 Some old boot loaders still use this way.
1916
Linus Torvalds1da177e2005-04-16 15:20:36 -07001917# Compressed boot loader in ROM. Yes, we really want to ask about
1918# TEXT and BSS so we preserve their values in the config files.
1919config ZBOOT_ROM_TEXT
1920 hex "Compressed ROM boot loader base address"
1921 default "0"
1922 help
1923 The physical address at which the ROM-able zImage is to be
1924 placed in the target. Platforms which normally make use of
1925 ROM-able zImage formats normally set this to a suitable
1926 value in their defconfig file.
1927
1928 If ZBOOT_ROM is not enabled, this has no effect.
1929
1930config ZBOOT_ROM_BSS
1931 hex "Compressed ROM boot loader BSS address"
1932 default "0"
1933 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001934 The base address of an area of read/write memory in the target
1935 for the ROM-able zImage which must be available while the
1936 decompressor is running. It must be large enough to hold the
1937 entire decompressed kernel plus an additional 128 KiB.
1938 Platforms which normally make use of ROM-able zImage formats
1939 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001940
1941 If ZBOOT_ROM is not enabled, this has no effect.
1942
1943config ZBOOT_ROM
1944 bool "Compressed boot loader in ROM/flash"
1945 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1946 help
1947 Say Y here if you intend to execute your compressed kernel image
1948 (zImage) directly from ROM or flash. If unsure, say N.
1949
Simon Horman090ab3f2011-04-26 06:29:53 +01001950choice
1951 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001952 depends on ZBOOT_ROM && ARCH_SH7372
Simon Horman090ab3f2011-04-26 06:29:53 +01001953 default ZBOOT_ROM_NONE
1954 help
1955 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001956 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001957 kernel image to an MMC or SD card and boot the kernel straight
1958 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001959 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001960 rest the kernel image to RAM.
1961
1962config ZBOOT_ROM_NONE
1963 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1964 help
1965 Do not load image from SD or MMC
1966
Simon Hormanf45b1142011-01-11 04:01:08 +01001967config ZBOOT_ROM_MMCIF
1968 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001969 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001970 Load image from MMCIF hardware block.
1971
1972config ZBOOT_ROM_SH_MOBILE_SDHI
1973 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1974 help
1975 Load image from SDHI hardware block
1976
1977endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001978
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001979config ARM_APPENDED_DTB
1980 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001981 depends on OF && !ZBOOT_ROM
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001982 help
1983 With this option, the boot code will look for a device tree binary
1984 (DTB) appended to zImage
1985 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1986
1987 This is meant as a backward compatibility convenience for those
1988 systems with a bootloader that can't be upgraded to accommodate
1989 the documented boot protocol using a device tree.
1990
1991 Beware that there is very little in terms of protection against
1992 this option being confused by leftover garbage in memory that might
1993 look like a DTB header after a reboot if no actual DTB is appended
1994 to zImage. Do not leave this option active in a production kernel
1995 if you don't intend to always append a DTB. Proper passing of the
1996 location into r2 of a bootloader provided DTB is always preferable
1997 to this option.
1998
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001999config ARM_ATAG_DTB_COMPAT
2000 bool "Supplement the appended DTB with traditional ATAG information"
2001 depends on ARM_APPENDED_DTB
2002 help
2003 Some old bootloaders can't be updated to a DTB capable one, yet
2004 they provide ATAGs with memory configuration, the ramdisk address,
2005 the kernel cmdline string, etc. Such information is dynamically
2006 provided by the bootloader and can't always be stored in a static
2007 DTB. To allow a device tree enabled kernel to be used with such
2008 bootloaders, this option allows zImage to extract the information
2009 from the ATAG list and store it at run time into the appended DTB.
2010
Genoud Richardd0f34a112012-06-26 16:37:59 +01002011choice
2012 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
2013 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
2014
2015config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
2016 bool "Use bootloader kernel arguments if available"
2017 help
2018 Uses the command-line options passed by the boot loader instead of
2019 the device tree bootargs property. If the boot loader doesn't provide
2020 any, the device tree bootargs property will be used.
2021
2022config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
2023 bool "Extend with bootloader kernel arguments"
2024 help
2025 The command-line arguments provided by the boot loader will be
2026 appended to the the device tree bootargs property.
2027
2028endchoice
2029
Linus Torvalds1da177e2005-04-16 15:20:36 -07002030config CMDLINE
2031 string "Default kernel command string"
2032 default ""
2033 help
2034 On some architectures (EBSA110 and CATS), there is currently no way
2035 for the boot loader to pass arguments to the kernel. For these
2036 architectures, you should supply some command-line options at build
2037 time by entering them here. As a minimum, you should specify the
2038 memory size and the root device (e.g., mem=64M root=/dev/nfs).
2039
Victor Boivie4394c122011-05-04 17:07:55 +01002040choice
2041 prompt "Kernel command line type" if CMDLINE != ""
2042 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002043 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01002044
2045config CMDLINE_FROM_BOOTLOADER
2046 bool "Use bootloader kernel arguments if available"
2047 help
2048 Uses the command-line options passed by the boot loader. If
2049 the boot loader doesn't provide any, the default kernel command
2050 string provided in CMDLINE will be used.
2051
2052config CMDLINE_EXTEND
2053 bool "Extend bootloader kernel arguments"
2054 help
2055 The command-line arguments provided by the boot loader will be
2056 appended to the default kernel command string.
2057
Alexander Holler92d20402010-02-16 19:04:53 +01002058config CMDLINE_FORCE
2059 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01002060 help
2061 Always use the default kernel command string, even if the boot
2062 loader passes other arguments to the kernel.
2063 This is useful if you cannot or don't want to change the
2064 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01002065endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002066
Linus Torvalds1da177e2005-04-16 15:20:36 -07002067config XIP_KERNEL
2068 bool "Kernel Execute-In-Place from ROM"
Rob Herring387798b2012-09-06 13:41:12 -05002069 depends on !ZBOOT_ROM && !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07002070 help
2071 Execute-In-Place allows the kernel to run from non-volatile storage
2072 directly addressable by the CPU, such as NOR flash. This saves RAM
2073 space since the text section of the kernel is not loaded from flash
2074 to RAM. Read-write sections, such as the data section and stack,
2075 are still copied to RAM. The XIP kernel is not compressed since
2076 it has to run directly from flash, so it will take more space to
2077 store it. The flash address used to link the kernel object files,
2078 and for storing it, is configuration dependent. Therefore, if you
2079 say Y here, you must know the proper physical address where to
2080 store the kernel image depending on your own flash memory usage.
2081
2082 Also note that the make target becomes "make xipImage" rather than
2083 "make zImage" or "make Image". The final kernel binary to put in
2084 ROM memory will be arch/arm/boot/xipImage.
2085
2086 If unsure, say N.
2087
2088config XIP_PHYS_ADDR
2089 hex "XIP Kernel Physical Location"
2090 depends on XIP_KERNEL
2091 default "0x00080000"
2092 help
2093 This is the physical address in your flash memory the kernel will
2094 be linked for and stored to. This address is dependent on your
2095 own flash usage.
2096
Richard Purdiec587e4a2007-02-06 21:29:00 +01002097config KEXEC
2098 bool "Kexec system call (EXPERIMENTAL)"
Stephen Warren19ab4282013-06-14 16:14:14 +01002099 depends on (!SMP || PM_SLEEP_SMP)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002100 help
2101 kexec is a system call that implements the ability to shutdown your
2102 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002103 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002104 you can start any kernel with it, not just Linux.
2105
2106 It is an ongoing process to be certain the hardware in a machine
2107 is properly shutdown, so do not be surprised if this code does not
Geert Uytterhoevenbf220692013-08-20 21:38:03 +02002108 initially work for you.
Richard Purdiec587e4a2007-02-06 21:29:00 +01002109
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002110config ATAGS_PROC
2111 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002112 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01002113 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002114 help
2115 Should the atags used to boot the kernel be exported in an "atags"
2116 file in procfs. Useful with kexec.
2117
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002118config CRASH_DUMP
2119 bool "Build kdump crash kernel (EXPERIMENTAL)"
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002120 help
2121 Generate crash dump after being started by kexec. This should
2122 be normally only set in special crash dump kernels which are
2123 loaded in the main kernel with kexec-tools into a specially
2124 reserved region and then later executed after a crash by
2125 kdump/kexec. The crash dump kernel must be compiled to a
2126 memory address not used by the main kernel
2127
2128 For more details see Documentation/kdump/kdump.txt
2129
Eric Miaoe69edc792010-07-05 15:56:50 +02002130config AUTO_ZRELADDR
2131 bool "Auto calculation of the decompressed kernel image address"
Linus Walleije1b31442013-05-02 18:01:46 +02002132 depends on !ZBOOT_ROM
Eric Miaoe69edc792010-07-05 15:56:50 +02002133 help
2134 ZRELADDR is the physical address where the decompressed kernel
2135 image will be placed. If AUTO_ZRELADDR is selected, the address
2136 will be determined at run-time by masking the current IP with
2137 0xf8000000. This assumes the zImage being placed in the first 128MB
2138 from start of memory.
2139
Linus Torvalds1da177e2005-04-16 15:20:36 -07002140endmenu
2141
Russell Kingac9d7ef2008-08-18 17:26:00 +01002142menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002143
Ben Dooks89c52ed2009-07-30 23:23:24 +01002144if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002145source "drivers/cpufreq/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002146endif
2147
Russell Kingac9d7ef2008-08-18 17:26:00 +01002148source "drivers/cpuidle/Kconfig"
2149
2150endmenu
2151
Linus Torvalds1da177e2005-04-16 15:20:36 -07002152menu "Floating point emulation"
2153
2154comment "At least one emulation must be selected"
2155
2156config FPE_NWFPE
2157 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002158 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002159 ---help---
2160 Say Y to include the NWFPE floating point emulator in the kernel.
2161 This is necessary to run most binaries. Linux does not currently
2162 support floating point hardware so you need to say Y here even if
2163 your machine has an FPA or floating point co-processor podule.
2164
2165 You may say N here if you are going to load the Acorn FPEmulator
2166 early in the bootup.
2167
2168config FPE_NWFPE_XP
2169 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002170 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002171 help
2172 Say Y to include 80-bit support in the kernel floating-point
2173 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2174 Note that gcc does not generate 80-bit operations by default,
2175 so in most cases this option only enlarges the size of the
2176 floating point emulator without any good reason.
2177
2178 You almost surely want to say N here.
2179
2180config FPE_FASTFPE
2181 bool "FastFPE math emulation (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002182 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
Linus Torvalds1da177e2005-04-16 15:20:36 -07002183 ---help---
2184 Say Y here to include the FAST floating point emulator in the kernel.
2185 This is an experimental much faster emulator which now also has full
2186 precision for the mantissa. It does not support any exceptions.
2187 It is very simple, and approximately 3-6 times faster than NWFPE.
2188
2189 It should be sufficient for most programs. It may be not suitable
2190 for scientific calculations, but you have to check this for yourself.
2191 If you do not feel you need a faster FP emulation you should better
2192 choose NWFPE.
2193
2194config VFP
2195 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002196 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002197 help
2198 Say Y to include VFP support code in the kernel. This is needed
2199 if your hardware includes a VFP unit.
2200
2201 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2202 release notes and additional status information.
2203
2204 Say N if your target does not have VFP hardware.
2205
Catalin Marinas25ebee02007-09-25 15:22:24 +01002206config VFPv3
2207 bool
2208 depends on VFP
2209 default y if CPU_V7
2210
Catalin Marinasb5872db2008-01-10 19:16:17 +01002211config NEON
2212 bool "Advanced SIMD (NEON) Extension support"
2213 depends on VFPv3 && CPU_V7
2214 help
2215 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2216 Extension.
2217
Ard Biesheuvel73c132c2013-05-16 11:41:48 +02002218config KERNEL_MODE_NEON
2219 bool "Support for NEON in kernel mode"
2220 default n
2221 depends on NEON
2222 help
2223 Say Y to include support for NEON in kernel mode.
2224
Linus Torvalds1da177e2005-04-16 15:20:36 -07002225endmenu
2226
2227menu "Userspace binary formats"
2228
2229source "fs/Kconfig.binfmt"
2230
2231config ARTHUR
2232 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002233 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002234 help
2235 Say Y here to include the kernel code necessary if you want to run
2236 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2237 experimental; if this sounds frightening, say N and sleep in peace.
2238 You can also say M here to compile this support as a module (which
2239 will be called arthur).
2240
2241endmenu
2242
2243menu "Power management options"
2244
Russell Kingeceab4a2005-11-15 11:31:41 +00002245source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002246
Johannes Bergf4cb5702007-12-08 02:14:00 +01002247config ARCH_SUSPEND_POSSIBLE
Stephen Warren4b1082c2012-09-05 09:58:27 -06002248 depends on !ARCH_S5PC100
Ezequiel Garcia19a05192013-08-16 10:28:24 +01002249 depends on CPU_ARM920T || CPU_ARM926T || CPU_FEROCEON || CPU_SA1100 || \
Chao Xie3f5d0812012-05-07 11:23:58 +08002250 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002251 def_bool y
2252
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002253config ARM_CPU_SUSPEND
2254 def_bool PM_SLEEP
2255
Linus Torvalds1da177e2005-04-16 15:20:36 -07002256endmenu
2257
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002258source "net/Kconfig"
2259
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002260source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002261
2262source "fs/Kconfig"
2263
Linus Torvalds1da177e2005-04-16 15:20:36 -07002264source "arch/arm/Kconfig.debug"
2265
2266source "security/Kconfig"
2267
2268source "crypto/Kconfig"
2269
2270source "lib/Kconfig"
Christoffer Dall749cf76c2013-01-20 18:28:06 -05002271
2272source "arch/arm/kvm/Kconfig"