blob: 085b31ba287adbed26c4638f17a6debf494f604e [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
Will Deacon0cbad9c2013-10-09 17:19:22 +01008 select ARCH_USE_CMPXCHG_LOCKREF
Russell Kingb1b3f492012-10-06 17:12:25 +01009 select ARCH_WANT_IPC_PARSE_VERSION
Stephen Boydee951c62012-10-29 19:19:34 +010010 select BUILDTIME_EXTABLE_SORT if MMU
Russell King171b3f02013-09-12 21:24:42 +010011 select CLONE_BACKWARDS
Russell Kingb1b3f492012-10-06 17:12:25 +010012 select CPU_PM if (SUSPEND || CPU_IDLE)
Will Deacon39b175a2012-12-04 12:57:11 +010013 select DCACHE_WORD_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && !CPU_BIG_ENDIAN && MMU
Uwe Kleine-König4477ca42013-03-21 21:02:37 +010014 select GENERIC_ATOMIC64 if (CPU_V7M || CPU_V6 || !CPU_32v6K || !AEABI)
Russell Kingb1b3f492012-10-06 17:12:25 +010015 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
Russell King171b3f02013-09-12 21:24:42 +010016 select GENERIC_IDLE_POLL_SETUP
Russell Kingb1b3f492012-10-06 17:12:25 +010017 select GENERIC_IRQ_PROBE
18 select GENERIC_IRQ_SHOW
Russell Kingb1b3f492012-10-06 17:12:25 +010019 select GENERIC_PCI_IOMAP
Stephen Boyd38ff87f2013-06-01 23:39:40 -070020 select GENERIC_SCHED_CLOCK
Russell Kingb1b3f492012-10-06 17:12:25 +010021 select GENERIC_SMP_IDLE_THREAD
22 select GENERIC_STRNCPY_FROM_USER
23 select GENERIC_STRNLEN_USER
24 select HARDIRQS_SW_RESEND
Rabin Vincent09f05d82012-02-18 17:52:41 +010025 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
Jason Wessel5cbad0e2008-02-20 13:33:40 -060026 select HAVE_ARCH_KGDB
Kees Cook91702172013-11-09 00:51:56 +010027 select HAVE_ARCH_SECCOMP_FILTER if (AEABI && !OABI_COMPAT)
Wade Farnsworth0693bf62012-04-04 16:19:47 +010028 select HAVE_ARCH_TRACEHOOK
Russell Kingb1b3f492012-10-06 17:12:25 +010029 select HAVE_BPF_JIT
Russell King171b3f02013-09-12 21:24:42 +010030 select HAVE_CONTEXT_TRACKING
Russell Kingb1b3f492012-10-06 17:12:25 +010031 select HAVE_C_RECORDMCOUNT
32 select HAVE_DEBUG_KMEMLEAK
33 select HAVE_DMA_API_DEBUG
34 select HAVE_DMA_ATTRS
35 select HAVE_DMA_CONTIGUOUS if MMU
36 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
37 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
38 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
39 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
40 select HAVE_GENERIC_DMA_COHERENT
Russell Kingb1b3f492012-10-06 17:12:25 +010041 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
42 select HAVE_IDE if PCI || ISA || PCMCIA
Russell King87c46b62013-05-04 14:38:59 +010043 select HAVE_IRQ_TIME_ACCOUNTING
Russell Kingb1b3f492012-10-06 17:12:25 +010044 select HAVE_KERNEL_GZIP
Kyungsik Leef9b493a2013-07-08 16:01:48 -070045 select HAVE_KERNEL_LZ4
Russell Kingb1b3f492012-10-06 17:12:25 +010046 select HAVE_KERNEL_LZMA
47 select HAVE_KERNEL_LZO
48 select HAVE_KERNEL_XZ
Jon Medhurst856bc352011-06-14 13:09:39 +010049 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080050 select HAVE_KRETPROBES if (HAVE_KPROBES)
Russell Kingb1b3f492012-10-06 17:12:25 +010051 select HAVE_MEMBLOCK
Russell King171b3f02013-09-12 21:24:42 +010052 select HAVE_MOD_ARCH_SPECIFIC if ARM_UNWIND
Russell Kingb1b3f492012-10-06 17:12:25 +010053 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jamie Iles7ada1892010-02-02 20:24:58 +010054 select HAVE_PERF_EVENTS
Will Deacon49863892013-09-26 12:36:35 +010055 select HAVE_PERF_REGS
56 select HAVE_PERF_USER_STACK_DUMP
Will Deacone513f8b2010-06-25 12:24:53 +010057 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kingb1b3f492012-10-06 17:12:25 +010058 select HAVE_SYSCALL_TRACEPOINTS
Catalin Marinasaf1839e2012-10-08 16:28:08 -070059 select HAVE_UID16
Kevin Hilman31c1fc82013-09-16 15:28:22 -070060 select HAVE_VIRT_CPU_ACCOUNTING_GEN
Thomas Gleixnerda0ec6f2013-08-14 20:43:17 +010061 select IRQ_FORCED_THREADING
Anna-Maria Gleixner3d92a712012-05-18 16:45:44 +000062 select KTIME_SCALAR
Russell King171b3f02013-09-12 21:24:42 +010063 select MODULES_USE_ELF_REL
64 select OLD_SIGACTION
65 select OLD_SIGSUSPEND3
Russell Kingb1b3f492012-10-06 17:12:25 +010066 select PERF_USE_VMALLOC
67 select RTC_LIB
68 select SYS_SUPPORTS_APM_EMULATION
Russell King171b3f02013-09-12 21:24:42 +010069 # Above selects are sorted alphabetically; please add new ones
70 # according to that. Thanks.
Linus Torvalds1da177e2005-04-16 15:20:36 -070071 help
72 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000073 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070074 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000075 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070076 Europe. There is an ARM Linux project with a web page at
77 <http://www.arm.linux.org.uk/>.
78
Russell King74facff2011-06-02 11:16:22 +010079config ARM_HAS_SG_CHAIN
80 bool
81
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020082config NEED_SG_DMA_LENGTH
83 bool
84
85config ARM_DMA_USE_IOMMU
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020086 bool
Russell Kingb1b3f492012-10-06 17:12:25 +010087 select ARM_HAS_SG_CHAIN
88 select NEED_SG_DMA_LENGTH
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020089
Seung-Woo Kim60460ab2013-02-06 13:21:14 +090090if ARM_DMA_USE_IOMMU
91
92config ARM_DMA_IOMMU_ALIGNMENT
93 int "Maximum PAGE_SIZE order of alignment for DMA IOMMU buffers"
94 range 4 9
95 default 8
96 help
97 DMA mapping framework by default aligns all buffers to the smallest
98 PAGE_SIZE order which is greater than or equal to the requested buffer
99 size. This works well for buffers up to a few hundreds kilobytes, but
100 for larger buffers it just a waste of address space. Drivers which has
101 relatively small addressing window (like 64Mib) might run out of
102 virtual space with just a few allocations.
103
104 With this parameter you can specify the maximum PAGE_SIZE order for
105 DMA IOMMU buffers. Larger buffers will be aligned only to this
106 specified order. The order is expressed as a power of two multiplied
107 by the PAGE_SIZE.
108
109endif
110
Russell King1a189b92008-04-13 21:41:55 +0100111config HAVE_PWM
112 bool
113
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100114config MIGHT_HAVE_PCI
115 bool
116
Ralf Baechle75e71532007-02-09 17:08:58 +0000117config SYS_SUPPORTS_APM_EMULATION
118 bool
119
Linus Walleijbc581772009-09-15 17:30:37 +0100120config HAVE_TCM
121 bool
122 select GENERIC_ALLOCATOR
123
Russell Kinge119bff2010-01-10 17:23:29 +0000124config HAVE_PROC_CPU
125 bool
126
Al Viro5ea81762007-02-11 15:41:31 +0000127config NO_IOPORT
128 bool
Al Viro5ea81762007-02-11 15:41:31 +0000129
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130config EISA
131 bool
132 ---help---
133 The Extended Industry Standard Architecture (EISA) bus was
134 developed as an open alternative to the IBM MicroChannel bus.
135
136 The EISA bus provided some of the features of the IBM MicroChannel
137 bus while maintaining backward compatibility with cards made for
138 the older ISA bus. The EISA bus saw limited use between 1988 and
139 1995 when it was made obsolete by the PCI bus.
140
141 Say Y here if you are building a kernel for an EISA-based machine.
142
143 Otherwise, say N.
144
145config SBUS
146 bool
147
Russell Kingf16fb1e2007-04-28 09:59:37 +0100148config STACKTRACE_SUPPORT
149 bool
150 default y
151
Nicolas Pitref76e9152008-04-24 01:31:46 -0400152config HAVE_LATENCYTOP_SUPPORT
153 bool
154 depends on !SMP
155 default y
156
Russell Kingf16fb1e2007-04-28 09:59:37 +0100157config LOCKDEP_SUPPORT
158 bool
159 default y
160
Russell King7ad1bcb2006-08-27 12:07:02 +0100161config TRACE_IRQFLAGS_SUPPORT
162 bool
163 default y
164
Linus Torvalds1da177e2005-04-16 15:20:36 -0700165config RWSEM_GENERIC_SPINLOCK
166 bool
167 default y
168
169config RWSEM_XCHGADD_ALGORITHM
170 bool
171
David Howellsf0d1b0b2006-12-08 02:37:49 -0800172config ARCH_HAS_ILOG2_U32
173 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800174
175config ARCH_HAS_ILOG2_U64
176 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800177
Ben Dooks89c52ed2009-07-30 23:23:24 +0100178config ARCH_HAS_CPUFREQ
179 bool
180 help
181 Internal node to signify that the ARCH has CPUFREQ support
182 and that the relevant menu configurations are displayed for
183 it.
184
Eduardo Valentin4a1b5732013-06-13 22:58:52 +0100185config ARCH_HAS_BANDGAP
186 bool
187
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800188config GENERIC_HWEIGHT
189 bool
190 default y
191
Linus Torvalds1da177e2005-04-16 15:20:36 -0700192config GENERIC_CALIBRATE_DELAY
193 bool
194 default y
195
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100196config ARCH_MAY_HAVE_PC_FDC
197 bool
198
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800199config ZONE_DMA
200 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800201
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800202config NEED_DMA_MAP_STATE
203 def_bool y
204
Rob Herring58af4a22012-03-20 14:33:01 -0500205config ARCH_HAS_DMA_SET_COHERENT_MASK
206 bool
207
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208config GENERIC_ISA_DMA
209 bool
210
Linus Torvalds1da177e2005-04-16 15:20:36 -0700211config FIQ
212 bool
213
Rob Herring13a50452012-02-07 09:28:22 -0600214config NEED_RET_TO_USER
215 bool
216
Al Viro034d2f52005-12-19 16:27:59 -0500217config ARCH_MTD_XIP
218 bool
219
Hyok S. Choic760fc12006-03-27 15:18:50 +0100220config VECTORS_BASE
221 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900222 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100223 default DRAM_BASE if REMAP_VECTORS_TO_RAM
224 default 0x00000000
225 help
Russell King19accfd2013-07-04 11:40:32 +0100226 The base address of exception vectors. This must be two pages
227 in size.
Hyok S. Choic760fc12006-03-27 15:18:50 +0100228
Russell Kingdc21af92011-01-04 19:09:43 +0000229config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100230 bool "Patch physical to virtual translations at runtime" if EMBEDDED
231 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100232 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000233 depends on !ARCH_REALVIEW || !SPARSEMEM
234 help
Russell King111e9a52011-05-12 10:02:42 +0100235 Patch phys-to-virt and virt-to-phys translation functions at
236 boot and module load time according to the position of the
237 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000238
Russell King111e9a52011-05-12 10:02:42 +0100239 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100240 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000241
Russell Kingc1beced2011-08-10 10:23:45 +0100242 Only disable this option if you know that you do not require
243 this feature (eg, building a kernel for a single machine) and
244 you need to shrink the kernel to the minimal size.
245
Rob Herring01464222012-08-28 13:06:41 -0500246config NEED_MACH_GPIO_H
247 bool
248 help
249 Select this when mach/gpio.h is required to provide special
250 definitions for this platform. The need for mach/gpio.h should
251 be avoided when possible.
252
Rob Herringc334bc12012-03-04 22:03:33 -0600253config NEED_MACH_IO_H
254 bool
255 help
256 Select this when mach/io.h is required to provide special
257 definitions for this platform. The need for mach/io.h should
258 be avoided when possible.
259
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400260config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400261 bool
Russell King111e9a52011-05-12 10:02:42 +0100262 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400263 Select this when mach/memory.h is required to provide special
264 definitions for this platform. The need for mach/memory.h should
265 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400266
267config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100268 hex "Physical address of main memory" if MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400269 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre974c0722011-12-02 23:09:42 +0100270 default DRAM_BASE if !MMU
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400271 help
272 Please provide the physical address corresponding to the
273 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000274
Simon Glass87e040b2011-08-16 23:44:26 +0100275config GENERIC_BUG
276 def_bool y
277 depends on BUG
278
Linus Torvalds1da177e2005-04-16 15:20:36 -0700279source "init/Kconfig"
280
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700281source "kernel/Kconfig.freezer"
282
Linus Torvalds1da177e2005-04-16 15:20:36 -0700283menu "System Type"
284
Hyok S. Choi3c427972009-07-24 12:35:00 +0100285config MMU
286 bool "MMU-based Paged Memory Management Support"
287 default y
288 help
289 Select if you want MMU-based virtualised addressing space
290 support by paged memory management. If unsure, say 'Y'.
291
Russell Kingccf50e22010-03-15 19:03:06 +0000292#
293# The "ARM system type" choice list is ordered alphabetically by option
294# text. Please add new entries in the option alphabetic order.
295#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700296choice
297 prompt "ARM system type"
Arnd Bergmann1420b222013-02-14 13:33:36 +0100298 default ARCH_VERSATILE if !MMU
299 default ARCH_MULTIPLATFORM if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700300
Rob Herring387798b2012-09-06 13:41:12 -0500301config ARCH_MULTIPLATFORM
302 bool "Allow multiple platforms to be selected"
Russell Kingb1b3f492012-10-06 17:12:25 +0100303 depends on MMU
Rob Herring387798b2012-09-06 13:41:12 -0500304 select ARM_PATCH_PHYS_VIRT
305 select AUTO_ZRELADDR
Dinh Nguyen66314222012-07-18 16:07:18 -0600306 select COMMON_CLK
Rob Herring387798b2012-09-06 13:41:12 -0500307 select MULTI_IRQ_HANDLER
Dinh Nguyen66314222012-07-18 16:07:18 -0600308 select SPARSE_IRQ
309 select USE_OF
Dinh Nguyen66314222012-07-18 16:07:18 -0600310
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100311config ARCH_INTEGRATOR
312 bool "ARM Ltd. Integrator family"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100313 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100314 select ARM_AMBA
Linus Walleija6131632012-06-11 17:33:12 +0200315 select COMMON_CLK
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200316 select COMMON_CLK_VERSATILE
Russell Kingb1b3f492012-10-06 17:12:25 +0100317 select GENERIC_CLOCKEVENTS
Linus Walleij9904f792011-12-09 10:29:23 +0100318 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000319 select ICST
Russell Kingb1b3f492012-10-06 17:12:25 +0100320 select MULTI_IRQ_HANDLER
321 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000322 select PLAT_VERSATILE
Linus Walleij695436e2012-02-26 10:46:48 +0100323 select SPARSE_IRQ
Linus Walleijd7057e12013-06-15 22:01:13 +0200324 select USE_OF
Linus Walleij2389d502012-10-31 22:04:31 +0100325 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100326 help
327 Support for ARM's Integrator platform.
328
329config ARCH_REALVIEW
330 bool "ARM Ltd. RealView family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100331 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100332 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100333 select ARM_TIMER_SP804
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200334 select COMMON_CLK
335 select COMMON_CLK_VERSATILE
Catalin Marinasae30cea2008-02-04 17:26:55 +0100336 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100337 select GPIO_PL061 if GPIOLIB
338 select ICST
339 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000340 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000341 select PLAT_VERSATILE_CLCD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100342 help
343 This enables support for ARM Ltd RealView boards.
344
345config ARCH_VERSATILE
346 bool "ARM Ltd. Versatile family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100347 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100348 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100349 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100350 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100351 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100352 select GENERIC_CLOCKEVENTS
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900353 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000354 select ICST
Russell Kingf4b8b312010-01-14 12:48:06 +0000355 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000356 select PLAT_VERSATILE_CLCD
Russell Kingb1b3f492012-10-06 17:12:25 +0100357 select PLAT_VERSATILE_CLOCK
Linus Walleij2389d502012-10-31 22:04:31 +0100358 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100359 help
360 This enables support for ARM Ltd Versatile board.
361
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100362config ARCH_AT91
363 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100364 select ARCH_REQUIRE_GPIOLIB
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100365 select CLKDEV_LOOKUP
Nicolas Ferree2615012011-11-22 22:26:09 +0100366 select IRQ_DOMAIN
Rob Herring01464222012-08-28 13:06:41 -0500367 select NEED_MACH_GPIO_H
Rob Herring1ac02d72012-04-04 17:48:04 -0500368 select NEED_MACH_IO_H if PCCARD
Jean-Christophe PLAGNIOL-VILLARD6732ae52012-07-12 23:35:02 +0800369 select PINCTRL
370 select PINCTRL_AT91 if USE_OF
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100371 help
Nicolas Ferre929e9942012-03-15 12:21:12 +0100372 This enables support for systems based on Atmel
373 AT91RM9200 and AT91SAM9* processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100374
Russell King93e22562012-10-12 14:20:52 +0100375config ARCH_CLPS711X
376 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
Alexander Shiyana3b8d4a2012-10-09 20:05:56 +0400377 select ARCH_REQUIRE_GPIOLIB
Alexander Shiyanea7d1bc2012-11-17 17:57:11 +0400378 select AUTO_ZRELADDR
Alexander Shiyanc99f72a2013-05-13 21:07:32 +0400379 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100380 select COMMON_CLK
381 select CPU_ARM720T
Alexander Shiyan4a8355c2012-10-10 19:45:27 +0400382 select GENERIC_CLOCKEVENTS
Alexander Shiyan65976192013-05-13 21:07:36 +0400383 select MFD_SYSCON
Alexander Shiyan99f04c82012-11-17 17:57:14 +0400384 select MULTI_IRQ_HANDLER
Alexander Shiyan0d8be812012-11-17 17:57:13 +0400385 select SPARSE_IRQ
Russell King93e22562012-10-12 14:20:52 +0100386 help
387 Support for Cirrus Logic 711x/721x/731x based boards.
388
Russell King788c9702009-04-26 14:21:59 +0100389config ARCH_GEMINI
390 bool "Cortina Systems Gemini"
Russell King788c9702009-04-26 14:21:59 +0100391 select ARCH_REQUIRE_GPIOLIB
Linus Walleijf3372c02013-10-01 12:57:20 +0200392 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100393 select CPU_FA526
Linus Walleijf3372c02013-10-01 12:57:20 +0200394 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100395 help
396 Support for the Cortina Systems Gemini family SoCs
397
Linus Torvalds1da177e2005-04-16 15:20:36 -0700398config ARCH_EBSA110
399 bool "EBSA-110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100400 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000401 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100402 select ISA
Rob Herringc334bc12012-03-04 22:03:33 -0600403 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400404 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100405 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700406 help
407 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000408 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700409 Ethernet interface, two PCMCIA sockets, two serial ports and a
410 parallel port.
411
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000412config ARCH_EP93XX
413 bool "EP93xx-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100414 select ARCH_HAS_HOLES_MEMORYMODEL
415 select ARCH_REQUIRE_GPIOLIB
416 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000417 select ARM_AMBA
418 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100419 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100420 select CPU_ARM920T
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100421 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000422 help
423 This enables support for the Cirrus EP93xx series of CPUs.
424
Linus Torvalds1da177e2005-04-16 15:20:36 -0700425config ARCH_FOOTBRIDGE
426 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000427 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700428 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000429 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200430 select HAVE_IDE
Rob Herring8ef6e622012-03-01 20:48:12 -0600431 select NEED_MACH_IO_H if !MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400432 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000433 help
434 Support for systems based on the DC21285 companion chip
435 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100437config ARCH_NETX
438 bool "Hilscher NetX based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100439 select ARM_VIC
Russell King234b6ced2011-05-08 14:09:47 +0100440 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000441 select CPU_ARM926T
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100442 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000443 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100444 This enables support for systems based on the Hilscher NetX Soc
445
Russell King3b938be2007-05-12 11:25:44 +0100446config ARCH_IOP13XX
447 bool "IOP13xx-based"
448 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100449 select CPU_XSC3
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400450 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600451 select NEED_RET_TO_USER
Russell Kingb1b3f492012-10-06 17:12:25 +0100452 select PCI
453 select PLAT_IOP
454 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100455 help
456 Support for Intel's IOP13XX (XScale) family of processors.
457
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100458config ARCH_IOP32X
459 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100460 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100461 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000462 select CPU_XSCALE
Linus Walleije9004f52013-09-09 11:59:51 +0200463 select GPIO_IOP
Rob Herring13a50452012-02-07 09:28:22 -0600464 select NEED_RET_TO_USER
Russell Kingf7e68bb2005-05-05 14:49:01 +0100465 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100466 select PLAT_IOP
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000467 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100468 Support for Intel's 80219 and IOP32X (XScale) family of
469 processors.
470
471config ARCH_IOP33X
472 bool "IOP33x-based"
473 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100474 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000475 select CPU_XSCALE
Linus Walleije9004f52013-09-09 11:59:51 +0200476 select GPIO_IOP
Rob Herring13a50452012-02-07 09:28:22 -0600477 select NEED_RET_TO_USER
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100478 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100479 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100480 help
481 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700482
Russell King3b938be2007-05-12 11:25:44 +0100483config ARCH_IXP4XX
484 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100485 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500486 select ARCH_HAS_DMA_SET_COHERENT_MASK
Ben Dooksd10d2d42013-02-01 09:41:37 +0000487 select ARCH_SUPPORTS_BIG_ENDIAN
Russell Kingb1b3f492012-10-06 17:12:25 +0100488 select ARCH_REQUIRE_GPIOLIB
Russell King234b6ced2011-05-08 14:09:47 +0100489 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000490 select CPU_XSCALE
Russell Kingb1b3f492012-10-06 17:12:25 +0100491 select DMABOUNCE if PCI
Russell King3b938be2007-05-12 11:25:44 +0100492 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100493 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600494 select NEED_MACH_IO_H
Florian Fainelli9296d942013-04-09 14:29:26 +0200495 select USB_EHCI_BIG_ENDIAN_DESC
Russell King171b3f02013-09-12 21:24:42 +0100496 select USB_EHCI_BIG_ENDIAN_MMIO
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100497 help
Russell King3b938be2007-05-12 11:25:44 +0100498 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100499
Saeed Bisharaedabd382009-08-06 15:12:43 +0300500config ARCH_DOVE
501 bool "Marvell Dove"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300502 select ARCH_REQUIRE_GPIOLIB
Sebastian Hesselbarth756b2532013-05-02 19:56:12 +0100503 select CPU_PJ4
Saeed Bisharaedabd382009-08-06 15:12:43 +0300504 select GENERIC_CLOCKEVENTS
Russell King0f81bd42012-09-09 20:34:13 +0100505 select MIGHT_HAVE_PCI
Russell King171b3f02013-09-12 21:24:42 +0100506 select MVEBU_MBUS
Sebastian Hesselbarth9139acd2012-11-19 10:39:55 +0100507 select PINCTRL
508 select PINCTRL_DOVE
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200509 select PLAT_ORION_LEGACY
Russell King0f81bd42012-09-09 20:34:13 +0100510 select USB_ARCH_HAS_EHCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300511 help
512 Support for the Marvell Dove SoC 88AP510
513
Saeed Bishara651c74c2008-06-22 22:45:06 +0200514config ARCH_KIRKWOOD
515 bool "Marvell Kirkwood"
Andrew Lunn0e2ee0c2013-01-27 11:07:23 +0100516 select ARCH_HAS_CPUFREQ
Erik Benadaa8865652009-05-28 17:08:55 -0700517 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100518 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200519 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100520 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100521 select PCI
Jason Gunthorpe1dc831b2012-11-21 00:19:06 -0700522 select PCI_QUIRKS
Andrew Lunnf9e75922012-11-17 17:00:44 +0100523 select PINCTRL
524 select PINCTRL_KIRKWOOD
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200525 select PLAT_ORION_LEGACY
Saeed Bishara651c74c2008-06-22 22:45:06 +0200526 help
527 Support for the following Marvell Kirkwood series SoCs:
528 88F6180, 88F6192 and 88F6281.
529
Russell King788c9702009-04-26 14:21:59 +0100530config ARCH_MV78XX0
531 bool "Marvell MV78xx0"
Erik Benadaa8865652009-05-28 17:08:55 -0700532 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100533 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100534 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100535 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100536 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200537 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100538 help
539 Support for the following Marvell MV78xx0 series SoCs:
540 MV781x0, MV782x0.
541
542config ARCH_ORION5X
543 bool "Marvell Orion"
544 depends on MMU
Erik Benadaa8865652009-05-28 17:08:55 -0700545 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100546 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100547 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100548 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100549 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200550 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100551 help
552 Support for the following Marvell Orion 5x series SoCs:
553 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
554 Orion-2 (5281), Orion-1-90 (6183).
555
556config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500557 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100558 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100559 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100560 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100561 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100562 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800563 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800564 select IRQ_DOMAIN
Haojian Zhuang0f374562013-04-21 16:53:02 +0800565 select MULTI_IRQ_HANDLER
Axel Lin7c8f86a2012-11-28 14:42:35 +0800566 select PINCTRL
Russell King788c9702009-04-26 14:21:59 +0100567 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400568 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100569 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500570 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100571
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100572config ARCH_KS8695
573 bool "Micrel/Kendin KS8695"
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100574 select ARCH_REQUIRE_GPIOLIB
Linus Walleijc7e783d2012-08-29 20:27:22 +0200575 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100576 select CPU_ARM922T
Linus Walleijc7e783d2012-08-29 20:27:22 +0200577 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100578 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100579 help
580 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
581 System-on-Chip devices.
582
Russell King788c9702009-04-26 14:21:59 +0100583config ARCH_W90X900
584 bool "Nuvoton W90X900 CPU"
wanzongshunc52d3d62009-06-10 15:49:32 +0100585 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100586 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100587 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100588 select CPU_ARM926T
wanzongshun58b53692009-08-14 15:36:44 +0100589 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200590 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100591 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
592 At present, the w90x900 has been renamed nuc900, regarding
593 the ARM series product line, you can login the following
594 link address to know more.
595
596 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
597 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400598
Russell King93e22562012-10-12 14:20:52 +0100599config ARCH_LPC32XX
600 bool "NXP LPC32XX"
601 select ARCH_REQUIRE_GPIOLIB
602 select ARM_AMBA
Russell King40737232011-01-06 22:32:52 +0000603 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100604 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100605 select CPU_ARM926T
606 select GENERIC_CLOCKEVENTS
607 select HAVE_IDE
608 select HAVE_PWM
609 select USB_ARCH_HAS_OHCI
610 select USE_OF
611 help
612 Support for the NXP LPC32XX family of processors
613
Linus Torvalds1da177e2005-04-16 15:20:36 -0700614config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700615 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100616 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100617 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100618 select ARCH_MTD_XIP
619 select ARCH_REQUIRE_GPIOLIB
620 select ARM_CPU_SUSPEND if PM
621 select AUTO_ZRELADDR
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100622 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100623 select CLKSRC_MMIO
Eric Miao981d0f32007-07-24 01:22:43 +0100624 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800625 select GPIO_PXA
Russell Kingb1b3f492012-10-06 17:12:25 +0100626 select HAVE_IDE
627 select MULTI_IRQ_HANDLER
Eric Miaobd5ce432009-01-20 12:06:01 +0800628 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800629 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000630 help
eric miao2c8086a2007-09-11 19:13:17 -0700631 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700632
Russell King788c9702009-04-26 14:21:59 +0100633config ARCH_MSM
634 bool "Qualcomm MSM"
Pavel Machek923a0812010-06-02 11:11:12 -0700635 select ARCH_REQUIRE_GPIOLIB
Stephen Boydc6025202013-07-24 13:54:30 -0700636 select CLKSRC_OF if OF
Stephen Boyd8cc7f532013-06-17 10:43:19 -0700637 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100638 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800639 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800640 Support for Qualcomm MSM/QSD based systems. This runs on the
641 apps processor of the MSM/QSD and depends on a shared memory
642 interface to the modem processor which runs the baseband
643 stack and controls some vital subsystems
644 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800645
Magnus Dammc793c1b2010-02-05 11:14:49 +0000646config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900647 bool "Renesas SH-Mobile / R-Mobile"
Magnus Damm69469992013-06-10 18:46:47 +0900648 select ARM_PATCH_PHYS_VIRT
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900649 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100650 select GENERIC_CLOCKEVENTS
Stephen Boyd4c3ffff2013-02-27 15:28:14 -0800651 select HAVE_ARM_SCU if SMP
Stephen Boyda894fcc2013-02-15 16:02:20 -0800652 select HAVE_ARM_TWD if SMP
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
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400695 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100696 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000697 help
698 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700699
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900700config ARCH_S3C24XX
701 bool "Samsung S3C24XX SoCs"
Ben Dooks9d56c022009-07-30 23:23:25 +0100702 select ARCH_HAS_CPUFREQ
Kukjin Kim53650432013-04-04 09:04:30 +0900703 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100704 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200705 select CLKSRC_SAMSUNG_PWM
Romain Naour7f78b6e2013-01-09 18:47:04 -0800706 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900707 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900708 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900709 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100710 select HAVE_S3C_RTC if RTC_CLASS
Heiko Stuebner17453dd2013-03-07 12:38:25 +0900711 select MULTI_IRQ_HANDLER
Rob Herring01464222012-08-28 13:06:41 -0500712 select NEED_MACH_GPIO_H
Rob Herringc334bc12012-03-04 22:03:33 -0600713 select NEED_MACH_IO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900714 select SAMSUNG_ATAGS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700715 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900716 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
717 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
718 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
719 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900720
Ben Dooksa08ab632008-10-21 14:06:39 +0100721config ARCH_S3C64XX
722 bool "Samsung S3C64XX"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100723 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900724 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100725 select ARM_VIC
726 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200727 select CLKSRC_SAMSUNG_PWM
Tomasz Figab69f4602013-08-26 02:00:38 +0900728 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100729 select CPU_V6
Romain Naour04a49b72013-01-09 18:47:04 -0800730 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900731 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900732 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900733 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100734 select HAVE_TCM
Rob Herring01464222012-08-28 13:06:41 -0500735 select NEED_MACH_GPIO_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100736 select NO_IOPORT
737 select PLAT_SAMSUNG
Tomasz Figa6e2d9e92013-10-06 09:06:27 +0900738 select PM_GENERIC_DOMAINS
Russell Kingb1b3f492012-10-06 17:12:25 +0100739 select S3C_DEV_NAND
740 select S3C_GPIO_TRACK
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900741 select SAMSUNG_ATAGS
Russell Kingb1b3f492012-10-06 17:12:25 +0100742 select SAMSUNG_GPIOLIB_4BIT
Tomasz Figa6e2d9e92013-10-06 09:06:27 +0900743 select SAMSUNG_WAKEMASK
Tomasz Figa88f59732013-06-17 23:45:37 +0900744 select SAMSUNG_WDT_RESET
Russell Kingb1b3f492012-10-06 17:12:25 +0100745 select USB_ARCH_HAS_OHCI
Ben Dooksa08ab632008-10-21 14:06:39 +0100746 help
747 Samsung S3C64XX series based systems
748
Kukjin Kim49b7a492010-09-07 15:47:18 +0900749config ARCH_S5P64X0
750 bool "Samsung S5P6440 S5P6450"
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900751 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200752 select CLKSRC_SAMSUNG_PWM
Russell Kingb1b3f492012-10-06 17:12:25 +0100753 select CPU_V6
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900754 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900755 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900756 select HAVE_S3C2410_I2C if I2C
Russell Kingb1b3f492012-10-06 17:12:25 +0100757 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim754961a2010-11-13 16:11:46 +0900758 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500759 select NEED_MACH_GPIO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900760 select SAMSUNG_ATAGS
Russell King171b3f02013-09-12 21:24:42 +0100761 select SAMSUNG_WDT_RESET
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900762 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900763 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
764 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900765
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200766config ARCH_S5PC100
767 bool "Samsung S5PC100"
Kukjin Kim53650432013-04-04 09:04:30 +0900768 select ARCH_REQUIRE_GPIOLIB
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900769 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200770 select CLKSRC_SAMSUNG_PWM
Byungho Min5a7652f2009-06-23 21:39:42 +0900771 select CPU_V7
Romain Naour6a5a2e32013-01-09 18:47:04 -0800772 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900773 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900774 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900775 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100776 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500777 select NEED_MACH_GPIO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900778 select SAMSUNG_ATAGS
Russell King171b3f02013-09-12 21:24:42 +0100779 select SAMSUNG_WDT_RESET
Byungho Min5a7652f2009-06-23 21:39:42 +0900780 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200781 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900782
Kukjin Kim170f4e42010-02-24 16:40:44 +0900783config ARCH_S5PV210
784 bool "Samsung S5PV210/S5PC110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100785 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900786 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100787 select ARCH_SPARSEMEM_ENABLE
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900788 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200789 select CLKSRC_SAMSUNG_PWM
Russell Kingb1b3f492012-10-06 17:12:25 +0100790 select CPU_V7
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900791 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900792 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900793 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900794 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100795 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500796 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400797 select NEED_MACH_MEMORY_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900798 select SAMSUNG_ATAGS
Kukjin Kim170f4e42010-02-24 16:40:44 +0900799 help
800 Samsung S5PV210/S5PC110 series based systems
801
Kukjin Kim83014572011-11-06 13:54:56 +0900802config ARCH_EXYNOS
Russell King93e22562012-10-12 14:20:52 +0100803 bool "Samsung EXYNOS"
Russell Kingb1b3f492012-10-06 17:12:25 +0100804 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900805 select ARCH_HAS_HOLES_MEMORYMODEL
Tomasz Figae245f962013-06-19 01:26:42 +0900806 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100807 select ARCH_SPARSEMEM_ENABLE
Tomasz Figae245f962013-06-19 01:26:42 +0900808 select ARM_GIC
Olof Johansson340fcb52013-04-26 11:47:45 -0700809 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100810 select CPU_V7
811 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900812 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900813 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100814 select HAVE_S3C_RTC if RTC_CLASS
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400815 select NEED_MACH_MEMORY_H
Tomasz Figa6e726ea2013-06-15 09:28:55 +0900816 select SPARSE_IRQ
Tomasz Figaf8b1ac02013-06-15 09:01:11 +0900817 select USE_OF
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900818 help
Kukjin Kim83014572011-11-06 13:54:56 +0900819 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900820
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100821config ARCH_DAVINCI
822 bool "TI DaVinci"
Russell Kingb1b3f492012-10-06 17:12:25 +0100823 select ARCH_HAS_HOLES_MEMORYMODEL
David Brownelldce11152008-09-07 23:41:04 -0700824 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100825 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700826 select GENERIC_ALLOCATOR
Russell Kingb1b3f492012-10-06 17:12:25 +0100827 select GENERIC_CLOCKEVENTS
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100828 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100829 select HAVE_IDE
Matt Porter3ad7a422013-03-06 11:15:31 -0500830 select TI_PRIV_EDMA
Sekhar Nori689e3312012-08-28 15:27:52 +0530831 select USE_OF
Russell Kingb1b3f492012-10-06 17:12:25 +0100832 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100833 help
834 Support for TI's DaVinci platform.
835
Tony Lindgrena0694862013-01-11 11:24:20 -0800836config ARCH_OMAP1
837 bool "TI OMAP1"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600838 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100839 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100840 select ARCH_HAS_HOLES_MEMORYMODEL
Tony Lindgrena0694862013-01-11 11:24:20 -0800841 select ARCH_OMAP
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100842 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200843 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100844 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100845 select GENERIC_CLOCKEVENTS
Tony Lindgrena0694862013-01-11 11:24:20 -0800846 select GENERIC_IRQ_CHIP
Tony Lindgrena0694862013-01-11 11:24:20 -0800847 select HAVE_IDE
848 select IRQ_DOMAIN
849 select NEED_MACH_IO_H if PCCARD
850 select NEED_MACH_MEMORY_H
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100851 help
Tony Lindgrena0694862013-01-11 11:24:20 -0800852 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
Binghua Duan02c981c2011-07-08 17:40:12 +0800853
Linus Torvalds1da177e2005-04-16 15:20:36 -0700854endchoice
855
Rob Herring387798b2012-09-06 13:41:12 -0500856menu "Multiple platform selection"
857 depends on ARCH_MULTIPLATFORM
858
859comment "CPU Core family selection"
860
Rob Herring387798b2012-09-06 13:41:12 -0500861config ARCH_MULTI_V4T
862 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500863 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100864 select ARCH_MULTI_V4_V5
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200865 select CPU_ARM920T if !(CPU_ARM7TDMI || CPU_ARM720T || \
866 CPU_ARM740T || CPU_ARM9TDMI || CPU_ARM922T || \
867 CPU_ARM925T || CPU_ARM940T)
Rob Herring387798b2012-09-06 13:41:12 -0500868
869config ARCH_MULTI_V5
870 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500871 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100872 select ARCH_MULTI_V4_V5
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200873 select CPU_ARM926T if (!CPU_ARM946E || CPU_ARM1020 || \
874 CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || \
875 CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_FEROCEON)
Rob Herring387798b2012-09-06 13:41:12 -0500876
877config ARCH_MULTI_V4_V5
878 bool
879
880config ARCH_MULTI_V6
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800881 bool "ARMv6 based platforms (ARM11)"
Rob Herring387798b2012-09-06 13:41:12 -0500882 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100883 select CPU_V6
Rob Herring387798b2012-09-06 13:41:12 -0500884
885config ARCH_MULTI_V7
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800886 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -0500887 default y
888 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100889 select CPU_V7
Rob Herring387798b2012-09-06 13:41:12 -0500890
891config ARCH_MULTI_V6_V7
892 bool
893
894config ARCH_MULTI_CPU_AUTO
895 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
896 select ARCH_MULTI_V5
897
898endmenu
899
Russell Kingccf50e22010-03-15 19:03:06 +0000900#
901# This is sorted alphabetically by mach-* pathname. However, plat-*
902# Kconfigs may be included either alphabetically (according to the
903# plat- suffix) or along side the corresponding mach-* source.
904#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +0200905source "arch/arm/mach-mvebu/Kconfig"
906
Russell King95b8f202010-01-14 11:43:54 +0000907source "arch/arm/mach-at91/Kconfig"
908
Christian Daudt8ac49e02012-11-19 09:46:10 -0800909source "arch/arm/mach-bcm/Kconfig"
910
Stephen Warrenf1ac9222013-03-11 22:40:18 -0600911source "arch/arm/mach-bcm2835/Kconfig"
912
Linus Torvalds1da177e2005-04-16 15:20:36 -0700913source "arch/arm/mach-clps711x/Kconfig"
914
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300915source "arch/arm/mach-cns3xxx/Kconfig"
916
Russell King95b8f202010-01-14 11:43:54 +0000917source "arch/arm/mach-davinci/Kconfig"
918
919source "arch/arm/mach-dove/Kconfig"
920
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000921source "arch/arm/mach-ep93xx/Kconfig"
922
Linus Torvalds1da177e2005-04-16 15:20:36 -0700923source "arch/arm/mach-footbridge/Kconfig"
924
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200925source "arch/arm/mach-gemini/Kconfig"
926
Rob Herring387798b2012-09-06 13:41:12 -0500927source "arch/arm/mach-highbank/Kconfig"
928
Linus Torvalds1da177e2005-04-16 15:20:36 -0700929source "arch/arm/mach-integrator/Kconfig"
930
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100931source "arch/arm/mach-iop32x/Kconfig"
932
933source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700934
Dan Williams285f5fa2006-12-07 02:59:39 +0100935source "arch/arm/mach-iop13xx/Kconfig"
936
Linus Torvalds1da177e2005-04-16 15:20:36 -0700937source "arch/arm/mach-ixp4xx/Kconfig"
938
Santosh Shilimkar828989a2013-06-10 11:27:13 -0400939source "arch/arm/mach-keystone/Kconfig"
940
Russell King95b8f202010-01-14 11:43:54 +0000941source "arch/arm/mach-kirkwood/Kconfig"
942
943source "arch/arm/mach-ks8695/Kconfig"
944
Russell King95b8f202010-01-14 11:43:54 +0000945source "arch/arm/mach-msm/Kconfig"
946
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200947source "arch/arm/mach-mv78xx0/Kconfig"
948
Shawn Guo3995eb82012-09-13 19:48:07 +0800949source "arch/arm/mach-imx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700950
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800951source "arch/arm/mach-mxs/Kconfig"
952
Russell King95b8f202010-01-14 11:43:54 +0000953source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800954
Russell King95b8f202010-01-14 11:43:54 +0000955source "arch/arm/mach-nomadik/Kconfig"
Russell King95b8f202010-01-14 11:43:54 +0000956
Daniel Tang9851ca52013-06-11 18:40:17 +1000957source "arch/arm/mach-nspire/Kconfig"
958
Tony Lindgrend48af152005-07-10 19:58:17 +0100959source "arch/arm/plat-omap/Kconfig"
960
961source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700962
Tony Lindgren1dbae812005-11-10 14:26:51 +0000963source "arch/arm/mach-omap2/Kconfig"
964
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400965source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400966
Rob Herring387798b2012-09-06 13:41:12 -0500967source "arch/arm/mach-picoxcell/Kconfig"
968
Russell King95b8f202010-01-14 11:43:54 +0000969source "arch/arm/mach-pxa/Kconfig"
970source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700971
Russell King95b8f202010-01-14 11:43:54 +0000972source "arch/arm/mach-mmp/Kconfig"
973
974source "arch/arm/mach-realview/Kconfig"
975
Heiko Stuebnerd63dc052013-06-02 23:09:41 +0200976source "arch/arm/mach-rockchip/Kconfig"
977
Russell King95b8f202010-01-14 11:43:54 +0000978source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300979
Ben Dookscf383672009-11-10 00:14:58 +0000980source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100981
Rob Herring387798b2012-09-06 13:41:12 -0500982source "arch/arm/mach-socfpga/Kconfig"
983
Arnd Bergmanna7ed0992012-12-02 15:12:47 +0100984source "arch/arm/mach-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100985
Srinivas Kandagatla65ebcc12013-06-25 12:15:10 +0100986source "arch/arm/mach-sti/Kconfig"
987
Kukjin Kim85fd6d62012-02-06 09:38:19 +0900988source "arch/arm/mach-s3c24xx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700989
Ben Dooks431107e2010-01-26 10:11:04 +0900990source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100991
Kukjin Kim49b7a492010-09-07 15:47:18 +0900992source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900993
Byungho Min5a7652f2009-06-23 21:39:42 +0900994source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900995
Kukjin Kim170f4e42010-02-24 16:40:44 +0900996source "arch/arm/mach-s5pv210/Kconfig"
997
Kukjin Kim83014572011-11-06 13:54:56 +0900998source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900999
Russell King882d01f2010-03-02 23:40:15 +00001000source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001001
Maxime Ripard3b526342012-11-08 12:40:16 +01001002source "arch/arm/mach-sunxi/Kconfig"
1003
Barry Song156a0992012-08-23 13:41:58 +08001004source "arch/arm/mach-prima2/Kconfig"
1005
Erik Gillingc5f80062010-01-21 16:53:02 -08001006source "arch/arm/mach-tegra/Kconfig"
1007
Russell King95b8f202010-01-14 11:43:54 +00001008source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001009
Russell King95b8f202010-01-14 11:43:54 +00001010source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001011
1012source "arch/arm/mach-versatile/Kconfig"
1013
Russell Kingceade892010-02-11 21:44:53 +00001014source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001015source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001016
Marc Zyngier2a0ba732012-10-05 13:47:39 +01001017source "arch/arm/mach-virt/Kconfig"
1018
Tony Prisk6f35f9a2012-10-11 20:13:09 +13001019source "arch/arm/mach-vt8500/Kconfig"
1020
wanzongshun7ec80dd2008-12-03 03:55:38 +01001021source "arch/arm/mach-w90x900/Kconfig"
1022
Josh Cartwright9a45eb62012-11-19 11:38:29 -06001023source "arch/arm/mach-zynq/Kconfig"
1024
Linus Torvalds1da177e2005-04-16 15:20:36 -07001025# Definitions to make life easier
1026config ARCH_ACORN
1027 bool
1028
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001029config PLAT_IOP
1030 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001031 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001032
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001033config PLAT_ORION
1034 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001035 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +01001036 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001037 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +02001038 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001039
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +02001040config PLAT_ORION_LEGACY
1041 bool
1042 select PLAT_ORION
1043
Eric Miaobd5ce432009-01-20 12:06:01 +08001044config PLAT_PXA
1045 bool
1046
Russell Kingf4b8b312010-01-14 12:48:06 +00001047config PLAT_VERSATILE
1048 bool
1049
Russell Kinge3887712010-01-14 13:30:16 +00001050config ARM_TIMER_SP804
1051 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001052 select CLKSRC_MMIO
Rob Herring7a0eca72013-03-25 11:23:52 -05001053 select CLKSRC_OF if OF
Russell Kinge3887712010-01-14 13:30:16 +00001054
Linus Torvalds1da177e2005-04-16 15:20:36 -07001055source arch/arm/mm/Kconfig
1056
Russell King958cab02011-12-11 10:04:00 +00001057config ARM_NR_BANKS
1058 int
1059 default 16 if ARCH_EP93XX
1060 default 8
1061
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001062config IWMMXT
Russell King698613b2013-04-03 16:33:26 +01001063 bool "Enable iWMMXt support" if !CPU_PJ4
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001064 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
Russell King698613b2013-04-03 16:33:26 +01001065 default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001066 help
1067 Enable support for iWMMXt context switching at run time if
1068 running on a CPU that supports it.
1069
eric miao52108642010-12-13 09:42:34 +01001070config MULTI_IRQ_HANDLER
1071 bool
1072 help
1073 Allow each machine to specify it's own IRQ handler at run time.
1074
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001075if !MMU
1076source "arch/arm/Kconfig-nommu"
1077endif
1078
Gregory CLEMENT3e0a07f2013-06-23 10:17:11 +01001079config PJ4B_ERRATA_4742
1080 bool "PJ4B Errata 4742: IDLE Wake Up Commands can Cause the CPU Core to Cease Operation"
1081 depends on CPU_PJ4B && MACH_ARMADA_370
1082 default y
1083 help
1084 When coming out of either a Wait for Interrupt (WFI) or a Wait for
1085 Event (WFE) IDLE states, a specific timing sensitivity exists between
1086 the retiring WFI/WFE instructions and the newly issued subsequent
1087 instructions. This sensitivity can result in a CPU hang scenario.
1088 Workaround:
1089 The software must insert either a Data Synchronization Barrier (DSB)
1090 or Data Memory Barrier (DMB) command immediately after the WFI/WFE
1091 instruction
1092
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001093config ARM_ERRATA_326103
1094 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1095 depends on CPU_V6
1096 help
1097 Executing a SWP instruction to read-only memory does not set bit 11
1098 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1099 treat the access as a read, preventing a COW from occurring and
1100 causing the faulting task to livelock.
1101
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001102config ARM_ERRATA_411920
1103 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001104 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001105 help
1106 Invalidation of the Instruction Cache operation can
1107 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1108 It does not affect the MPCore. This option enables the ARM Ltd.
1109 recommended workaround.
1110
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001111config ARM_ERRATA_430973
1112 bool "ARM errata: Stale prediction on replaced interworking branch"
1113 depends on CPU_V7
1114 help
1115 This option enables the workaround for the 430973 Cortex-A8
1116 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1117 interworking branch is replaced with another code sequence at the
1118 same virtual address, whether due to self-modifying code or virtual
1119 to physical address re-mapping, Cortex-A8 does not recover from the
1120 stale interworking branch prediction. This results in Cortex-A8
1121 executing the new code sequence in the incorrect ARM or Thumb state.
1122 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1123 and also flushes the branch target cache at every context switch.
1124 Note that setting specific bits in the ACTLR register may not be
1125 available in non-secure mode.
1126
Catalin Marinas855c5512009-04-30 17:06:15 +01001127config ARM_ERRATA_458693
1128 bool "ARM errata: Processor deadlock when a false hazard is created"
1129 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001130 depends on !ARCH_MULTIPLATFORM
Catalin Marinas855c5512009-04-30 17:06:15 +01001131 help
1132 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1133 erratum. For very specific sequences of memory operations, it is
1134 possible for a hazard condition intended for a cache line to instead
1135 be incorrectly associated with a different cache line. This false
1136 hazard might then cause a processor deadlock. The workaround enables
1137 the L1 caching of the NEON accesses and disables the PLD instruction
1138 in the ACTLR register. Note that setting specific bits in the ACTLR
1139 register may not be available in non-secure mode.
1140
Catalin Marinas0516e462009-04-30 17:06:20 +01001141config ARM_ERRATA_460075
1142 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1143 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001144 depends on !ARCH_MULTIPLATFORM
Catalin Marinas0516e462009-04-30 17:06:20 +01001145 help
1146 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1147 erratum. Any asynchronous access to the L2 cache may encounter a
1148 situation in which recent store transactions to the L2 cache are lost
1149 and overwritten with stale memory contents from external memory. The
1150 workaround disables the write-allocate mode for the L2 cache via the
1151 ACTLR register. Note that setting specific bits in the ACTLR register
1152 may not be available in non-secure mode.
1153
Will Deacon9f050272010-09-14 09:51:43 +01001154config ARM_ERRATA_742230
1155 bool "ARM errata: DMB operation may be faulty"
1156 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001157 depends on !ARCH_MULTIPLATFORM
Will Deacon9f050272010-09-14 09:51:43 +01001158 help
1159 This option enables the workaround for the 742230 Cortex-A9
1160 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1161 between two write operations may not ensure the correct visibility
1162 ordering of the two writes. This workaround sets a specific bit in
1163 the diagnostic register of the Cortex-A9 which causes the DMB
1164 instruction to behave as a DSB, ensuring the correct behaviour of
1165 the two writes.
1166
Will Deacona672e992010-09-14 09:53:02 +01001167config ARM_ERRATA_742231
1168 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1169 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001170 depends on !ARCH_MULTIPLATFORM
Will Deacona672e992010-09-14 09:53:02 +01001171 help
1172 This option enables the workaround for the 742231 Cortex-A9
1173 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1174 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1175 accessing some data located in the same cache line, may get corrupted
1176 data due to bad handling of the address hazard when the line gets
1177 replaced from one of the CPUs at the same time as another CPU is
1178 accessing it. This workaround sets specific bits in the diagnostic
1179 register of the Cortex-A9 which reduces the linefill issuing
1180 capabilities of the processor.
1181
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001182config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001183 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001184 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001185 help
1186 The PL310 L2 cache controller implements three types of Clean &
1187 Invalidate maintenance operations: by Physical Address
1188 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1189 They are architecturally defined to behave as the execution of a
1190 clean operation followed immediately by an invalidate operation,
1191 both performing to the same memory location. This functionality
1192 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001193 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001194
Jon Medhurst69155792013-06-07 10:35:35 +01001195config ARM_ERRATA_643719
1196 bool "ARM errata: LoUIS bit field in CLIDR register is incorrect"
1197 depends on CPU_V7 && SMP
1198 help
1199 This option enables the workaround for the 643719 Cortex-A9 (prior to
1200 r1p0) erratum. On affected cores the LoUIS bit field of the CLIDR
1201 register returns zero when it should return one. The workaround
1202 corrects this value, ensuring cache maintenance operations which use
1203 it behave as intended and avoiding data corruption.
1204
Will Deaconcdf357f2010-08-05 11:20:51 +01001205config ARM_ERRATA_720789
1206 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001207 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001208 help
1209 This option enables the workaround for the 720789 Cortex-A9 (prior to
1210 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1211 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1212 As a consequence of this erratum, some TLB entries which should be
1213 invalidated are not, resulting in an incoherency in the system page
1214 tables. The workaround changes the TLB flushing routines to invalidate
1215 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001216
Russell King1f0090a2011-03-16 23:35:25 +00001217config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001218 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001219 depends on CACHE_L2X0
1220 help
1221 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1222 operation (offset 0x7FC). This operation runs in background so that
1223 PL310 can handle normal accesses while it is in progress. Under very
1224 rare circumstances, due to this erratum, write data can be lost when
1225 PL310 treats a cacheable write transaction during a Clean &
1226 Invalidate by Way operation.
1227
Will Deacon475d92f2010-09-28 14:02:02 +01001228config ARM_ERRATA_743622
1229 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1230 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001231 depends on !ARCH_MULTIPLATFORM
Will Deacon475d92f2010-09-28 14:02:02 +01001232 help
1233 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001234 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001235 optimisation in the Cortex-A9 Store Buffer may lead to data
1236 corruption. This workaround sets a specific bit in the diagnostic
1237 register of the Cortex-A9 which disables the Store Buffer
1238 optimisation, preventing the defect from occurring. This has no
1239 visible impact on the overall performance or power consumption of the
1240 processor.
1241
Will Deacon9a27c272011-02-18 16:36:35 +01001242config ARM_ERRATA_751472
1243 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001244 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001245 depends on !ARCH_MULTIPLATFORM
Will Deacon9a27c272011-02-18 16:36:35 +01001246 help
1247 This option enables the workaround for the 751472 Cortex-A9 (prior
1248 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1249 completion of a following broadcasted operation if the second
1250 operation is received by a CPU before the ICIALLUIS has completed,
1251 potentially leading to corrupted entries in the cache or TLB.
1252
Will Deaconfa0ce402011-11-14 17:24:57 +01001253config PL310_ERRATA_753970
1254 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001255 depends on CACHE_PL310
1256 help
1257 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1258
1259 Under some condition the effect of cache sync operation on
1260 the store buffer still remains when the operation completes.
1261 This means that the store buffer is always asked to drain and
1262 this prevents it from merging any further writes. The workaround
1263 is to replace the normal offset of cache sync operation (0x730)
1264 by another offset targeting an unmapped PL310 register 0x740.
1265 This has the same effect as the cache sync operation: store buffer
1266 drain and waiting for all buffers empty.
1267
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001268config ARM_ERRATA_754322
1269 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1270 depends on CPU_V7
1271 help
1272 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1273 r3p*) erratum. A speculative memory access may cause a page table walk
1274 which starts prior to an ASID switch but completes afterwards. This
1275 can populate the micro-TLB with a stale entry which may be hit with
1276 the new ASID. This workaround places two dsb instructions in the mm
1277 switching code so that no page table walks can cross the ASID switch.
1278
Will Deacon5dab26af2011-03-04 12:38:54 +01001279config ARM_ERRATA_754327
1280 bool "ARM errata: no automatic Store Buffer drain"
1281 depends on CPU_V7 && SMP
1282 help
1283 This option enables the workaround for the 754327 Cortex-A9 (prior to
1284 r2p0) erratum. The Store Buffer does not have any automatic draining
1285 mechanism and therefore a livelock may occur if an external agent
1286 continuously polls a memory location waiting to observe an update.
1287 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1288 written polling loops from denying visibility of updates to memory.
1289
Catalin Marinas145e10e2011-08-15 11:04:41 +01001290config ARM_ERRATA_364296
1291 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
Fabio Estevamfd832472013-07-09 18:34:01 +01001292 depends on CPU_V6
Catalin Marinas145e10e2011-08-15 11:04:41 +01001293 help
1294 This options enables the workaround for the 364296 ARM1136
1295 r0p2 erratum (possible cache data corruption with
1296 hit-under-miss enabled). It sets the undocumented bit 31 in
1297 the auxiliary control register and the FI bit in the control
1298 register, thus disabling hit-under-miss without putting the
1299 processor into full low interrupt latency mode. ARM11MPCore
1300 is not affected.
1301
Will Deaconf630c1b2011-09-15 11:45:15 +01001302config ARM_ERRATA_764369
1303 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1304 depends on CPU_V7 && SMP
1305 help
1306 This option enables the workaround for erratum 764369
1307 affecting Cortex-A9 MPCore with two or more processors (all
1308 current revisions). Under certain timing circumstances, a data
1309 cache line maintenance operation by MVA targeting an Inner
1310 Shareable memory region may fail to proceed up to either the
1311 Point of Coherency or to the Point of Unification of the
1312 system. This workaround adds a DSB instruction before the
1313 relevant cache maintenance functions and sets a specific bit
1314 in the diagnostic control register of the SCU.
1315
Will Deacon11ed0ba2011-11-14 17:24:58 +01001316config PL310_ERRATA_769419
1317 bool "PL310 errata: no automatic Store Buffer drain"
1318 depends on CACHE_L2X0
1319 help
1320 On revisions of the PL310 prior to r3p2, the Store Buffer does
1321 not automatically drain. This can cause normal, non-cacheable
1322 writes to be retained when the memory system is idle, leading
1323 to suboptimal I/O performance for drivers using coherent DMA.
1324 This option adds a write barrier to the cpu_idle loop so that,
1325 on systems with an outer cache, the store buffer is drained
1326 explicitly.
1327
Simon Horman7253b852012-09-28 02:12:45 +01001328config ARM_ERRATA_775420
1329 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1330 depends on CPU_V7
1331 help
1332 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1333 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1334 operation aborts with MMU exception, it might cause the processor
1335 to deadlock. This workaround puts DSB before executing ISB if
1336 an abort may occur on cache maintenance.
1337
Catalin Marinas93dc6882013-03-26 23:35:04 +01001338config ARM_ERRATA_798181
1339 bool "ARM errata: TLBI/DSB failure on Cortex-A15"
1340 depends on CPU_V7 && SMP
1341 help
1342 On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
1343 adequately shooting down all use of the old entries. This
1344 option enables the Linux kernel workaround for this erratum
1345 which sends an IPI to the CPUs that are running the same ASID
1346 as the one being invalidated.
1347
Will Deacon84b65042013-08-20 17:29:55 +01001348config ARM_ERRATA_773022
1349 bool "ARM errata: incorrect instructions may be executed from loop buffer"
1350 depends on CPU_V7
1351 help
1352 This option enables the workaround for the 773022 Cortex-A15
1353 (up to r0p4) erratum. In certain rare sequences of code, the
1354 loop buffer may deliver incorrect instructions. This
1355 workaround disables the loop buffer to avoid the erratum.
1356
Linus Torvalds1da177e2005-04-16 15:20:36 -07001357endmenu
1358
1359source "arch/arm/common/Kconfig"
1360
Linus Torvalds1da177e2005-04-16 15:20:36 -07001361menu "Bus support"
1362
1363config ARM_AMBA
1364 bool
1365
1366config ISA
1367 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001368 help
1369 Find out whether you have ISA slots on your motherboard. ISA is the
1370 name of a bus system, i.e. the way the CPU talks to the other stuff
1371 inside your box. Other bus systems are PCI, EISA, MicroChannel
1372 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1373 newer boards don't support it. If you have ISA, say Y, otherwise N.
1374
Russell King065909b2006-01-04 15:44:16 +00001375# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001376config ISA_DMA
1377 bool
Russell King065909b2006-01-04 15:44:16 +00001378 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001379
Russell King065909b2006-01-04 15:44:16 +00001380# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001381config ISA_DMA_API
1382 bool
Al Viro5cae8412005-05-04 05:39:22 +01001383
Linus Torvalds1da177e2005-04-16 15:20:36 -07001384config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001385 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001386 help
1387 Find out whether you have a PCI motherboard. PCI is the name of a
1388 bus system, i.e. the way the CPU talks to the other stuff inside
1389 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1390 VESA. If you have PCI, say Y, otherwise N.
1391
Anton Vorontsov52882172010-04-19 13:20:49 +01001392config PCI_DOMAINS
1393 bool
1394 depends on PCI
1395
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001396config PCI_NANOENGINE
1397 bool "BSE nanoEngine PCI support"
1398 depends on SA1100_NANOENGINE
1399 help
1400 Enable PCI on the BSE nanoEngine board.
1401
Matthew Wilcox36e23592007-07-10 10:54:40 -06001402config PCI_SYSCALL
1403 def_bool PCI
1404
Mike Rapoporta0113a92007-11-25 08:55:34 +01001405config PCI_HOST_ITE8152
1406 bool
1407 depends on PCI && MACH_ARMCORE
1408 default y
1409 select DMABOUNCE
1410
Linus Torvalds1da177e2005-04-16 15:20:36 -07001411source "drivers/pci/Kconfig"
Jingoo Han3f06d152013-06-21 16:25:29 +09001412source "drivers/pci/pcie/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001413
1414source "drivers/pcmcia/Kconfig"
1415
1416endmenu
1417
1418menu "Kernel Features"
1419
Dave Martin3b556582011-12-07 15:38:04 +00001420config HAVE_SMP
1421 bool
1422 help
1423 This option should be selected by machines which have an SMP-
1424 capable CPU.
1425
1426 The only effect of this option is to make the SMP-related
1427 options available to the user for configuration.
1428
Linus Torvalds1da177e2005-04-16 15:20:36 -07001429config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001430 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001431 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001432 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001433 depends on HAVE_SMP
Jonathan Austin801bb212013-02-22 18:56:04 +00001434 depends on MMU || ARM_MPU
Russell Kingb1b3f492012-10-06 17:12:25 +01001435 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001436 help
1437 This enables support for systems with more than one CPU. If you have
1438 a system with only one CPU, like most personal computers, say N. If
1439 you have a system with more than one CPU, say Y.
1440
1441 If you say N here, the kernel will run on single and multiprocessor
1442 machines, but will use only one CPU of a multiprocessor machine. If
1443 you say Y here, the kernel will run on many, but not all, single
1444 processor machines. On a single processor machine, the kernel will
1445 run faster if you say N here.
1446
Paul Bolle395cf962011-08-15 02:02:26 +02001447 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001448 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001449 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001450
1451 If you don't know what to do here, say N.
1452
Russell Kingf00ec482010-09-04 10:47:48 +01001453config SMP_ON_UP
1454 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
Jonathan Austin801bb212013-02-22 18:56:04 +00001455 depends on SMP && !XIP_KERNEL && MMU
Russell Kingf00ec482010-09-04 10:47:48 +01001456 default y
1457 help
1458 SMP kernels contain instructions which fail on non-SMP processors.
1459 Enabling this option allows the kernel to modify itself to make
1460 these instructions safe. Disabling it allows about 1K of space
1461 savings.
1462
1463 If you don't know what to do here, say Y.
1464
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001465config ARM_CPU_TOPOLOGY
1466 bool "Support cpu topology definition"
1467 depends on SMP && CPU_V7
1468 default y
1469 help
1470 Support ARM cpu topology definition. The MPIDR register defines
1471 affinity between processors which is then used to describe the cpu
1472 topology of an ARM System.
1473
1474config SCHED_MC
1475 bool "Multi-core scheduler support"
1476 depends on ARM_CPU_TOPOLOGY
1477 help
1478 Multi-core scheduler support improves the CPU scheduler's decision
1479 making when dealing with multi-core CPU chips at a cost of slightly
1480 increased overhead in some places. If unsure say N here.
1481
1482config SCHED_SMT
1483 bool "SMT scheduler support"
1484 depends on ARM_CPU_TOPOLOGY
1485 help
1486 Improves the CPU scheduler's decision making when dealing with
1487 MultiThreading at a cost of slightly increased overhead in some
1488 places. If unsure say N here.
1489
Russell Kinga8cbcd92009-05-16 11:51:14 +01001490config HAVE_ARM_SCU
1491 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001492 help
1493 This option enables support for the ARM system coherency unit
1494
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001495config HAVE_ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001496 bool "Architected timer support"
1497 depends on CPU_V7
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001498 select ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001499 help
1500 This option enables support for the ARM architected timer
1501
Russell Kingf32f4ce2009-05-16 12:14:21 +01001502config HAVE_ARM_TWD
1503 bool
1504 depends on SMP
Rob Herringda4a6862013-02-06 21:17:47 -06001505 select CLKSRC_OF if OF
Russell Kingf32f4ce2009-05-16 12:14:21 +01001506 help
1507 This options enables support for the ARM timer and watchdog unit
1508
Nicolas Pitree8db2882012-04-12 02:45:22 -04001509config MCPM
1510 bool "Multi-Cluster Power Management"
1511 depends on CPU_V7 && SMP
1512 help
1513 This option provides the common power management infrastructure
1514 for (multi-)cluster based systems, such as big.LITTLE based
1515 systems.
1516
Nicolas Pitre1c33be52012-04-12 02:56:10 -04001517config BIG_LITTLE
1518 bool "big.LITTLE support (Experimental)"
1519 depends on CPU_V7 && SMP
1520 select MCPM
1521 help
1522 This option enables support selections for the big.LITTLE
1523 system architecture.
1524
1525config BL_SWITCHER
1526 bool "big.LITTLE switcher support"
1527 depends on BIG_LITTLE && MCPM && HOTPLUG_CPU
1528 select CPU_PM
1529 select ARM_CPU_SUSPEND
1530 help
1531 The big.LITTLE "switcher" provides the core functionality to
1532 transparently handle transition between a cluster of A15's
1533 and a cluster of A7's in a big.LITTLE system.
1534
Nicolas Pitreb22537c2012-04-12 03:04:28 -04001535config BL_SWITCHER_DUMMY_IF
1536 tristate "Simple big.LITTLE switcher user interface"
1537 depends on BL_SWITCHER && DEBUG_KERNEL
1538 help
1539 This is a simple and dummy char dev interface to control
1540 the big.LITTLE switcher core code. It is meant for
1541 debugging purposes only.
1542
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001543choice
1544 prompt "Memory split"
1545 default VMSPLIT_3G
1546 help
1547 Select the desired split between kernel and user memory.
1548
1549 If you are not absolutely sure what you are doing, leave this
1550 option alone!
1551
1552 config VMSPLIT_3G
1553 bool "3G/1G user/kernel split"
1554 config VMSPLIT_2G
1555 bool "2G/2G user/kernel split"
1556 config VMSPLIT_1G
1557 bool "1G/3G user/kernel split"
1558endchoice
1559
1560config PAGE_OFFSET
1561 hex
1562 default 0x40000000 if VMSPLIT_1G
1563 default 0x80000000 if VMSPLIT_2G
1564 default 0xC0000000
1565
Linus Torvalds1da177e2005-04-16 15:20:36 -07001566config NR_CPUS
1567 int "Maximum number of CPUs (2-32)"
1568 range 2 32
1569 depends on SMP
1570 default "4"
1571
Russell Kinga054a812005-11-02 22:24:33 +00001572config HOTPLUG_CPU
Russell King00b7ded2012-10-22 22:54:30 +01001573 bool "Support for hot-pluggable CPUs"
Stephen Rothwell40b31362013-05-21 13:49:35 +10001574 depends on SMP
Russell Kinga054a812005-11-02 22:24:33 +00001575 help
1576 Say Y here to experiment with turning CPUs off and on. CPUs
1577 can be controlled through /sys/devices/system/cpu.
1578
Will Deacon2bdd4242012-12-12 19:20:52 +00001579config ARM_PSCI
1580 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1581 depends on CPU_V7
1582 help
1583 Say Y here if you want Linux to communicate with system firmware
1584 implementing the PSCI specification for CPU-centric power
1585 management operations described in ARM document number ARM DEN
1586 0022A ("Power State Coordination Interface System Software on
1587 ARM processors").
1588
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001589# The GPIO number here must be sorted by descending number. In case of
1590# a multiplatform kernel, we just want the highest value required by the
1591# selected platforms.
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001592config ARCH_NR_GPIO
1593 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001594 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
R Sricharan6d0fc192013-02-07 17:43:35 +05301595 default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || SOC_DRA7XX
Olof Johansson06b851e2013-04-02 18:33:58 -07001596 default 392 if ARCH_U8500
Tony Prisk01bb9142013-03-09 18:22:30 +13001597 default 352 if ARCH_VT8500
1598 default 288 if ARCH_SUNXI
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001599 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001600 default 0
1601 help
1602 Maximum number of GPIOs in the system.
1603
1604 If unsure, leave the default value.
1605
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001606source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001607
Russell Kingc9218b12013-04-27 23:31:10 +01001608config HZ_FIXED
Russell Kingf8065812006-03-02 22:41:59 +00001609 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001610 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001611 ARCH_S5PV210 || ARCH_EXYNOS4
David Brownell5248c652007-11-12 17:59:10 +01001612 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001613 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell King47d84682013-09-10 23:47:55 +01001614 default 0
Russell Kingc9218b12013-04-27 23:31:10 +01001615
1616choice
Russell King47d84682013-09-10 23:47:55 +01001617 depends on HZ_FIXED = 0
Russell Kingc9218b12013-04-27 23:31:10 +01001618 prompt "Timer frequency"
1619
1620config HZ_100
1621 bool "100 Hz"
1622
1623config HZ_200
1624 bool "200 Hz"
1625
1626config HZ_250
1627 bool "250 Hz"
1628
1629config HZ_300
1630 bool "300 Hz"
1631
1632config HZ_500
1633 bool "500 Hz"
1634
1635config HZ_1000
1636 bool "1000 Hz"
1637
1638endchoice
1639
1640config HZ
1641 int
Russell King47d84682013-09-10 23:47:55 +01001642 default HZ_FIXED if HZ_FIXED != 0
Russell Kingc9218b12013-04-27 23:31:10 +01001643 default 100 if HZ_100
1644 default 200 if HZ_200
1645 default 250 if HZ_250
1646 default 300 if HZ_300
1647 default 500 if HZ_500
1648 default 1000
1649
1650config SCHED_HRTICK
1651 def_bool HIGH_RES_TIMERS
Russell Kingf8065812006-03-02 22:41:59 +00001652
Russell Kingb28748f2013-02-17 14:40:33 +00001653config SCHED_HRTICK
1654 def_bool HIGH_RES_TIMERS
1655
Catalin Marinas16c79652009-07-24 12:33:02 +01001656config THUMB2_KERNEL
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001657 bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
Uwe Kleine-König4477ca42013-03-21 21:02:37 +01001658 depends on (CPU_V7 || CPU_V7M) && !CPU_V6 && !CPU_V6K
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001659 default y if CPU_THUMBONLY
Catalin Marinas16c79652009-07-24 12:33:02 +01001660 select AEABI
1661 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001662 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001663 help
1664 By enabling this option, the kernel will be compiled in
1665 Thumb-2 mode. A compiler/assembler that understand the unified
1666 ARM-Thumb syntax is needed.
1667
1668 If unsure, say N.
1669
Dave Martin6f685c52011-03-03 11:41:12 +01001670config THUMB2_AVOID_R_ARM_THM_JUMP11
1671 bool "Work around buggy Thumb-2 short branch relocations in gas"
1672 depends on THUMB2_KERNEL && MODULES
1673 default y
1674 help
1675 Various binutils versions can resolve Thumb-2 branches to
1676 locally-defined, preemptible global symbols as short-range "b.n"
1677 branch instructions.
1678
1679 This is a problem, because there's no guarantee the final
1680 destination of the symbol, or any candidate locations for a
1681 trampoline, are within range of the branch. For this reason, the
1682 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1683 relocation in modules at all, and it makes little sense to add
1684 support.
1685
1686 The symptom is that the kernel fails with an "unsupported
1687 relocation" error when loading some modules.
1688
1689 Until fixed tools are available, passing
1690 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1691 code which hits this problem, at the cost of a bit of extra runtime
1692 stack usage in some cases.
1693
1694 The problem is described in more detail at:
1695 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1696
1697 Only Thumb-2 kernels are affected.
1698
1699 Unless you are sure your tools don't have this problem, say Y.
1700
Catalin Marinas0becb082009-07-24 12:32:53 +01001701config ARM_ASM_UNIFIED
1702 bool
1703
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001704config AEABI
1705 bool "Use the ARM EABI to compile the kernel"
1706 help
1707 This option allows for the kernel to be compiled using the latest
1708 ARM ABI (aka EABI). This is only useful if you are using a user
1709 space environment that is also compiled with EABI.
1710
1711 Since there are major incompatibilities between the legacy ABI and
1712 EABI, especially with regard to structure member alignment, this
1713 option also changes the kernel syscall calling convention to
1714 disambiguate both ABIs and allow for backward compatibility support
1715 (selected with CONFIG_OABI_COMPAT).
1716
1717 To use this you need GCC version 4.0.0 or later.
1718
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001719config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001720 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001721 depends on AEABI && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001722 help
1723 This option preserves the old syscall interface along with the
1724 new (ARM EABI) one. It also provides a compatibility layer to
1725 intercept syscalls that have structure arguments which layout
1726 in memory differs between the legacy ABI and the new ARM EABI
1727 (only for non "thumb" binaries). This option adds a tiny
1728 overhead to all syscalls and produces a slightly larger kernel.
Kees Cook91702172013-11-09 00:51:56 +01001729
1730 The seccomp filter system will not be available when this is
1731 selected, since there is no way yet to sensibly distinguish
1732 between calling conventions during filtering.
1733
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001734 If you know you'll be using only pure EABI user space then you
1735 can say N here. If this option is not selected and you attempt
1736 to execute a legacy ABI binary then the result will be
1737 UNPREDICTABLE (in fact it can be predicted that it won't work
Kees Cookb02f8462013-11-09 00:31:11 +01001738 at all). If in doubt say N.
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001739
Mel Gormaneb335752009-05-13 17:34:48 +01001740config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001741 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001742
Russell King05944d72006-11-30 20:43:51 +00001743config ARCH_SPARSEMEM_ENABLE
1744 bool
1745
Russell King07a2f732008-10-01 21:39:58 +01001746config ARCH_SPARSEMEM_DEFAULT
1747 def_bool ARCH_SPARSEMEM_ENABLE
1748
Russell King05944d72006-11-30 20:43:51 +00001749config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001750 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001751
Will Deacon7b7bf492011-05-19 13:21:14 +01001752config HAVE_ARCH_PFN_VALID
1753 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1754
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001755config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001756 bool "High Memory Support"
1757 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001758 help
1759 The address space of ARM processors is only 4 Gigabytes large
1760 and it has to accommodate user address space, kernel address
1761 space as well as some memory mapped IO. That means that, if you
1762 have a large amount of physical memory and/or IO, not all of the
1763 memory can be "permanently mapped" by the kernel. The physical
1764 memory that is not permanently mapped is called "high memory".
1765
1766 Depending on the selected kernel/user memory split, minimum
1767 vmalloc space and actual amount of RAM, you may not need this
1768 option which should result in a slightly faster kernel.
1769
1770 If unsure, say n.
1771
Russell King65cec8e2009-08-17 20:02:06 +01001772config HIGHPTE
1773 bool "Allocate 2nd-level pagetables from highmem"
1774 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001775
Jamie Iles1b8873a2010-02-02 20:25:44 +01001776config HW_PERF_EVENTS
1777 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001778 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001779 default y
1780 help
1781 Enable hardware performance counter support for perf events. If
1782 disabled, perf events will use software events only.
1783
Catalin Marinas1355e2a2012-07-25 14:32:38 +01001784config SYS_SUPPORTS_HUGETLBFS
1785 def_bool y
1786 depends on ARM_LPAE
1787
Catalin Marinas8d962502012-07-25 14:39:26 +01001788config HAVE_ARCH_TRANSPARENT_HUGEPAGE
1789 def_bool y
1790 depends on ARM_LPAE
1791
Steven Capper4bfab202013-07-26 14:58:22 +01001792config ARCH_WANT_GENERAL_HUGETLB
1793 def_bool y
1794
Dave Hansen3f22ab22005-06-23 00:07:43 -07001795source "mm/Kconfig"
1796
Magnus Dammc1b2d972010-07-05 10:00:11 +01001797config FORCE_MAX_ZONEORDER
1798 int "Maximum zone order" if ARCH_SHMOBILE
1799 range 11 64 if ARCH_SHMOBILE
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001800 default "12" if SOC_AM33XX
Magnus Dammc1b2d972010-07-05 10:00:11 +01001801 default "9" if SA1111
1802 default "11"
1803 help
1804 The kernel memory allocator divides physically contiguous memory
1805 blocks into "zones", where each zone is a power of two number of
1806 pages. This option selects the largest power of two that the kernel
1807 keeps in the memory allocator. If you need to allocate very large
1808 blocks of physically contiguous memory, then you may need to
1809 increase this value.
1810
1811 This config option is actually maximum order plus one. For example,
1812 a value of 11 means that the largest free memory block is 2^10 pages.
1813
Linus Torvalds1da177e2005-04-16 15:20:36 -07001814config ALIGNMENT_TRAP
1815 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001816 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001817 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001818 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001819 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001820 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001821 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1822 address divisible by 4. On 32-bit ARM processors, these non-aligned
1823 fetch/store instructions will be emulated in software if you say
1824 here, which has a severe performance impact. This is necessary for
1825 correct operation of some network protocols. With an IP-only
1826 configuration it is safe to say N, otherwise say Y.
1827
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001828config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001829 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1830 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001831 default y if CPU_FEROCEON
1832 help
1833 Implement faster copy_to_user and clear_user methods for CPU
1834 cores where a 8-word STM instruction give significantly higher
1835 memory write throughput than a sequence of individual 32bit stores.
1836
1837 A possible side effect is a slight increase in scheduling latency
1838 between threads sharing the same address space if they invoke
1839 such copy operations with large buffers.
1840
1841 However, if the CPU data cache is using a write-allocate mode,
1842 this option is unlikely to provide any performance gain.
1843
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001844config SECCOMP
1845 bool
1846 prompt "Enable seccomp to safely compute untrusted bytecode"
1847 ---help---
1848 This kernel feature is useful for number crunching applications
1849 that may need to compute untrusted bytecode during their
1850 execution. By using pipes or other transports made available to
1851 the process as file descriptors supporting the read/write
1852 syscalls, it's possible to isolate those applications in
1853 their own address space using seccomp. Once seccomp is
1854 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1855 and the task is only allowed to execute a few safe syscalls
1856 defined by each seccomp mode.
1857
Nicolas Pitrec743f382010-05-24 23:55:42 -04001858config CC_STACKPROTECTOR
1859 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1860 help
1861 This option turns on the -fstack-protector GCC feature. This
1862 feature puts, at the beginning of functions, a canary value on
1863 the stack just before the return address, and validates
1864 the value just before actually returning. Stack based buffer
1865 overflows (that need to overwrite this return address) now also
1866 overwrite the canary, which gets detected and the attack is then
1867 neutralized via a kernel panic.
1868 This feature requires gcc version 4.2 or above.
1869
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001870config XEN_DOM0
1871 def_bool y
1872 depends on XEN
1873
1874config XEN
1875 bool "Xen guest support on ARM (EXPERIMENTAL)"
Ian Campbell85323a92013-03-07 07:17:25 +00001876 depends on ARM && AEABI && OF
Arnd Bergmannf880b672012-10-09 10:33:52 +00001877 depends on CPU_V7 && !CPU_V6
Ian Campbell85323a92013-03-07 07:17:25 +00001878 depends on !GENERIC_ATOMIC64
Stefano Stabellini17b7ab82013-04-24 18:47:18 +00001879 select ARM_PSCI
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001880 help
1881 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1882
Linus Torvalds1da177e2005-04-16 15:20:36 -07001883endmenu
1884
1885menu "Boot options"
1886
Grant Likely9eb8f672011-04-28 14:27:20 -06001887config USE_OF
1888 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001889 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001890 select OF
1891 select OF_EARLY_FLATTREE
1892 help
1893 Include support for flattened device tree machine descriptions.
1894
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001895config ATAGS
1896 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1897 default y
1898 help
1899 This is the traditional way of passing data to the kernel at boot
1900 time. If you are solely relying on the flattened device tree (or
1901 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1902 to remove ATAGS support from your kernel binary. If unsure,
1903 leave this to y.
1904
1905config DEPRECATED_PARAM_STRUCT
1906 bool "Provide old way to pass kernel parameters"
1907 depends on ATAGS
1908 help
1909 This was deprecated in 2001 and announced to live on for 5 years.
1910 Some old boot loaders still use this way.
1911
Linus Torvalds1da177e2005-04-16 15:20:36 -07001912# Compressed boot loader in ROM. Yes, we really want to ask about
1913# TEXT and BSS so we preserve their values in the config files.
1914config ZBOOT_ROM_TEXT
1915 hex "Compressed ROM boot loader base address"
1916 default "0"
1917 help
1918 The physical address at which the ROM-able zImage is to be
1919 placed in the target. Platforms which normally make use of
1920 ROM-able zImage formats normally set this to a suitable
1921 value in their defconfig file.
1922
1923 If ZBOOT_ROM is not enabled, this has no effect.
1924
1925config ZBOOT_ROM_BSS
1926 hex "Compressed ROM boot loader BSS address"
1927 default "0"
1928 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001929 The base address of an area of read/write memory in the target
1930 for the ROM-able zImage which must be available while the
1931 decompressor is running. It must be large enough to hold the
1932 entire decompressed kernel plus an additional 128 KiB.
1933 Platforms which normally make use of ROM-able zImage formats
1934 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001935
1936 If ZBOOT_ROM is not enabled, this has no effect.
1937
1938config ZBOOT_ROM
1939 bool "Compressed boot loader in ROM/flash"
1940 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1941 help
1942 Say Y here if you intend to execute your compressed kernel image
1943 (zImage) directly from ROM or flash. If unsure, say N.
1944
Simon Horman090ab3f2011-04-26 06:29:53 +01001945choice
1946 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001947 depends on ZBOOT_ROM && ARCH_SH7372
Simon Horman090ab3f2011-04-26 06:29:53 +01001948 default ZBOOT_ROM_NONE
1949 help
1950 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001951 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001952 kernel image to an MMC or SD card and boot the kernel straight
1953 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001954 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001955 rest the kernel image to RAM.
1956
1957config ZBOOT_ROM_NONE
1958 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1959 help
1960 Do not load image from SD or MMC
1961
Simon Hormanf45b1142011-01-11 04:01:08 +01001962config ZBOOT_ROM_MMCIF
1963 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001964 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001965 Load image from MMCIF hardware block.
1966
1967config ZBOOT_ROM_SH_MOBILE_SDHI
1968 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1969 help
1970 Load image from SDHI hardware block
1971
1972endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001973
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001974config ARM_APPENDED_DTB
1975 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001976 depends on OF && !ZBOOT_ROM
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001977 help
1978 With this option, the boot code will look for a device tree binary
1979 (DTB) appended to zImage
1980 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1981
1982 This is meant as a backward compatibility convenience for those
1983 systems with a bootloader that can't be upgraded to accommodate
1984 the documented boot protocol using a device tree.
1985
1986 Beware that there is very little in terms of protection against
1987 this option being confused by leftover garbage in memory that might
1988 look like a DTB header after a reboot if no actual DTB is appended
1989 to zImage. Do not leave this option active in a production kernel
1990 if you don't intend to always append a DTB. Proper passing of the
1991 location into r2 of a bootloader provided DTB is always preferable
1992 to this option.
1993
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001994config ARM_ATAG_DTB_COMPAT
1995 bool "Supplement the appended DTB with traditional ATAG information"
1996 depends on ARM_APPENDED_DTB
1997 help
1998 Some old bootloaders can't be updated to a DTB capable one, yet
1999 they provide ATAGs with memory configuration, the ramdisk address,
2000 the kernel cmdline string, etc. Such information is dynamically
2001 provided by the bootloader and can't always be stored in a static
2002 DTB. To allow a device tree enabled kernel to be used with such
2003 bootloaders, this option allows zImage to extract the information
2004 from the ATAG list and store it at run time into the appended DTB.
2005
Genoud Richardd0f34a112012-06-26 16:37:59 +01002006choice
2007 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
2008 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
2009
2010config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
2011 bool "Use bootloader kernel arguments if available"
2012 help
2013 Uses the command-line options passed by the boot loader instead of
2014 the device tree bootargs property. If the boot loader doesn't provide
2015 any, the device tree bootargs property will be used.
2016
2017config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
2018 bool "Extend with bootloader kernel arguments"
2019 help
2020 The command-line arguments provided by the boot loader will be
2021 appended to the the device tree bootargs property.
2022
2023endchoice
2024
Linus Torvalds1da177e2005-04-16 15:20:36 -07002025config CMDLINE
2026 string "Default kernel command string"
2027 default ""
2028 help
2029 On some architectures (EBSA110 and CATS), there is currently no way
2030 for the boot loader to pass arguments to the kernel. For these
2031 architectures, you should supply some command-line options at build
2032 time by entering them here. As a minimum, you should specify the
2033 memory size and the root device (e.g., mem=64M root=/dev/nfs).
2034
Victor Boivie4394c122011-05-04 17:07:55 +01002035choice
2036 prompt "Kernel command line type" if CMDLINE != ""
2037 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002038 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01002039
2040config CMDLINE_FROM_BOOTLOADER
2041 bool "Use bootloader kernel arguments if available"
2042 help
2043 Uses the command-line options passed by the boot loader. If
2044 the boot loader doesn't provide any, the default kernel command
2045 string provided in CMDLINE will be used.
2046
2047config CMDLINE_EXTEND
2048 bool "Extend bootloader kernel arguments"
2049 help
2050 The command-line arguments provided by the boot loader will be
2051 appended to the default kernel command string.
2052
Alexander Holler92d20402010-02-16 19:04:53 +01002053config CMDLINE_FORCE
2054 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01002055 help
2056 Always use the default kernel command string, even if the boot
2057 loader passes other arguments to the kernel.
2058 This is useful if you cannot or don't want to change the
2059 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01002060endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002061
Linus Torvalds1da177e2005-04-16 15:20:36 -07002062config XIP_KERNEL
2063 bool "Kernel Execute-In-Place from ROM"
Rob Herring387798b2012-09-06 13:41:12 -05002064 depends on !ZBOOT_ROM && !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07002065 help
2066 Execute-In-Place allows the kernel to run from non-volatile storage
2067 directly addressable by the CPU, such as NOR flash. This saves RAM
2068 space since the text section of the kernel is not loaded from flash
2069 to RAM. Read-write sections, such as the data section and stack,
2070 are still copied to RAM. The XIP kernel is not compressed since
2071 it has to run directly from flash, so it will take more space to
2072 store it. The flash address used to link the kernel object files,
2073 and for storing it, is configuration dependent. Therefore, if you
2074 say Y here, you must know the proper physical address where to
2075 store the kernel image depending on your own flash memory usage.
2076
2077 Also note that the make target becomes "make xipImage" rather than
2078 "make zImage" or "make Image". The final kernel binary to put in
2079 ROM memory will be arch/arm/boot/xipImage.
2080
2081 If unsure, say N.
2082
2083config XIP_PHYS_ADDR
2084 hex "XIP Kernel Physical Location"
2085 depends on XIP_KERNEL
2086 default "0x00080000"
2087 help
2088 This is the physical address in your flash memory the kernel will
2089 be linked for and stored to. This address is dependent on your
2090 own flash usage.
2091
Richard Purdiec587e4a2007-02-06 21:29:00 +01002092config KEXEC
2093 bool "Kexec system call (EXPERIMENTAL)"
Stephen Warren19ab4282013-06-14 16:14:14 +01002094 depends on (!SMP || PM_SLEEP_SMP)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002095 help
2096 kexec is a system call that implements the ability to shutdown your
2097 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002098 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002099 you can start any kernel with it, not just Linux.
2100
2101 It is an ongoing process to be certain the hardware in a machine
2102 is properly shutdown, so do not be surprised if this code does not
Geert Uytterhoevenbf220692013-08-20 21:38:03 +02002103 initially work for you.
Richard Purdiec587e4a2007-02-06 21:29:00 +01002104
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002105config ATAGS_PROC
2106 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002107 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01002108 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002109 help
2110 Should the atags used to boot the kernel be exported in an "atags"
2111 file in procfs. Useful with kexec.
2112
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002113config CRASH_DUMP
2114 bool "Build kdump crash kernel (EXPERIMENTAL)"
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002115 help
2116 Generate crash dump after being started by kexec. This should
2117 be normally only set in special crash dump kernels which are
2118 loaded in the main kernel with kexec-tools into a specially
2119 reserved region and then later executed after a crash by
2120 kdump/kexec. The crash dump kernel must be compiled to a
2121 memory address not used by the main kernel
2122
2123 For more details see Documentation/kdump/kdump.txt
2124
Eric Miaoe69edc792010-07-05 15:56:50 +02002125config AUTO_ZRELADDR
2126 bool "Auto calculation of the decompressed kernel image address"
Linus Walleije1b31442013-05-02 18:01:46 +02002127 depends on !ZBOOT_ROM
Eric Miaoe69edc792010-07-05 15:56:50 +02002128 help
2129 ZRELADDR is the physical address where the decompressed kernel
2130 image will be placed. If AUTO_ZRELADDR is selected, the address
2131 will be determined at run-time by masking the current IP with
2132 0xf8000000. This assumes the zImage being placed in the first 128MB
2133 from start of memory.
2134
Linus Torvalds1da177e2005-04-16 15:20:36 -07002135endmenu
2136
Russell Kingac9d7ef2008-08-18 17:26:00 +01002137menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002138
Ben Dooks89c52ed2009-07-30 23:23:24 +01002139if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002140source "drivers/cpufreq/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002141endif
2142
Russell Kingac9d7ef2008-08-18 17:26:00 +01002143source "drivers/cpuidle/Kconfig"
2144
2145endmenu
2146
Linus Torvalds1da177e2005-04-16 15:20:36 -07002147menu "Floating point emulation"
2148
2149comment "At least one emulation must be selected"
2150
2151config FPE_NWFPE
2152 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002153 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002154 ---help---
2155 Say Y to include the NWFPE floating point emulator in the kernel.
2156 This is necessary to run most binaries. Linux does not currently
2157 support floating point hardware so you need to say Y here even if
2158 your machine has an FPA or floating point co-processor podule.
2159
2160 You may say N here if you are going to load the Acorn FPEmulator
2161 early in the bootup.
2162
2163config FPE_NWFPE_XP
2164 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002165 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002166 help
2167 Say Y to include 80-bit support in the kernel floating-point
2168 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2169 Note that gcc does not generate 80-bit operations by default,
2170 so in most cases this option only enlarges the size of the
2171 floating point emulator without any good reason.
2172
2173 You almost surely want to say N here.
2174
2175config FPE_FASTFPE
2176 bool "FastFPE math emulation (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002177 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
Linus Torvalds1da177e2005-04-16 15:20:36 -07002178 ---help---
2179 Say Y here to include the FAST floating point emulator in the kernel.
2180 This is an experimental much faster emulator which now also has full
2181 precision for the mantissa. It does not support any exceptions.
2182 It is very simple, and approximately 3-6 times faster than NWFPE.
2183
2184 It should be sufficient for most programs. It may be not suitable
2185 for scientific calculations, but you have to check this for yourself.
2186 If you do not feel you need a faster FP emulation you should better
2187 choose NWFPE.
2188
2189config VFP
2190 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002191 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002192 help
2193 Say Y to include VFP support code in the kernel. This is needed
2194 if your hardware includes a VFP unit.
2195
2196 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2197 release notes and additional status information.
2198
2199 Say N if your target does not have VFP hardware.
2200
Catalin Marinas25ebee02007-09-25 15:22:24 +01002201config VFPv3
2202 bool
2203 depends on VFP
2204 default y if CPU_V7
2205
Catalin Marinasb5872db2008-01-10 19:16:17 +01002206config NEON
2207 bool "Advanced SIMD (NEON) Extension support"
2208 depends on VFPv3 && CPU_V7
2209 help
2210 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2211 Extension.
2212
Ard Biesheuvel73c132c2013-05-16 11:41:48 +02002213config KERNEL_MODE_NEON
2214 bool "Support for NEON in kernel mode"
Russell Kingc4a30c32013-09-22 11:08:50 +01002215 depends on NEON && AEABI
Ard Biesheuvel73c132c2013-05-16 11:41:48 +02002216 help
2217 Say Y to include support for NEON in kernel mode.
2218
Linus Torvalds1da177e2005-04-16 15:20:36 -07002219endmenu
2220
2221menu "Userspace binary formats"
2222
2223source "fs/Kconfig.binfmt"
2224
2225config ARTHUR
2226 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002227 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002228 help
2229 Say Y here to include the kernel code necessary if you want to run
2230 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2231 experimental; if this sounds frightening, say N and sleep in peace.
2232 You can also say M here to compile this support as a module (which
2233 will be called arthur).
2234
2235endmenu
2236
2237menu "Power management options"
2238
Russell Kingeceab4a2005-11-15 11:31:41 +00002239source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002240
Johannes Bergf4cb5702007-12-08 02:14:00 +01002241config ARCH_SUSPEND_POSSIBLE
Stephen Warren4b1082c2012-09-05 09:58:27 -06002242 depends on !ARCH_S5PC100
Ezequiel Garcia19a05192013-08-16 10:28:24 +01002243 depends on CPU_ARM920T || CPU_ARM926T || CPU_FEROCEON || CPU_SA1100 || \
Chao Xie3f5d0812012-05-07 11:23:58 +08002244 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002245 def_bool y
2246
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002247config ARM_CPU_SUSPEND
2248 def_bool PM_SLEEP
2249
Linus Torvalds1da177e2005-04-16 15:20:36 -07002250endmenu
2251
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002252source "net/Kconfig"
2253
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002254source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002255
2256source "fs/Kconfig"
2257
Linus Torvalds1da177e2005-04-16 15:20:36 -07002258source "arch/arm/Kconfig.debug"
2259
2260source "security/Kconfig"
2261
2262source "crypto/Kconfig"
2263
2264source "lib/Kconfig"
Christoffer Dall749cf76c2013-01-20 18:28:06 -05002265
2266source "arch/arm/kvm/Kconfig"