blob: 7db8abe071f443365bf29a9c8085694232816e47 [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
Mark Salterd7018842013-10-07 22:07:58 -04008 select ARCH_MIGHT_HAVE_PC_PARPORT
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
Will Drewry4095ccc2012-11-15 22:12:29 +010027 select HAVE_ARCH_SECCOMP_FILTER
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 Deacone513f8b2010-06-25 12:24:53 +010055 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kingb1b3f492012-10-06 17:12:25 +010056 select HAVE_SYSCALL_TRACEPOINTS
Catalin Marinasaf1839e2012-10-08 16:28:08 -070057 select HAVE_UID16
Thomas Gleixnerda0ec6f2013-08-14 20:43:17 +010058 select IRQ_FORCED_THREADING
Anna-Maria Gleixner3d92a712012-05-18 16:45:44 +000059 select KTIME_SCALAR
Russell King171b3f02013-09-12 21:24:42 +010060 select MODULES_USE_ELF_REL
61 select OLD_SIGACTION
62 select OLD_SIGSUSPEND3
Russell Kingb1b3f492012-10-06 17:12:25 +010063 select PERF_USE_VMALLOC
64 select RTC_LIB
65 select SYS_SUPPORTS_APM_EMULATION
Russell King171b3f02013-09-12 21:24:42 +010066 # Above selects are sorted alphabetically; please add new ones
67 # according to that. Thanks.
Linus Torvalds1da177e2005-04-16 15:20:36 -070068 help
69 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000070 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070071 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000072 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070073 Europe. There is an ARM Linux project with a web page at
74 <http://www.arm.linux.org.uk/>.
75
Russell King74facff2011-06-02 11:16:22 +010076config ARM_HAS_SG_CHAIN
77 bool
78
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020079config NEED_SG_DMA_LENGTH
80 bool
81
82config ARM_DMA_USE_IOMMU
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020083 bool
Russell Kingb1b3f492012-10-06 17:12:25 +010084 select ARM_HAS_SG_CHAIN
85 select NEED_SG_DMA_LENGTH
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020086
Seung-Woo Kim60460ab2013-02-06 13:21:14 +090087if ARM_DMA_USE_IOMMU
88
89config ARM_DMA_IOMMU_ALIGNMENT
90 int "Maximum PAGE_SIZE order of alignment for DMA IOMMU buffers"
91 range 4 9
92 default 8
93 help
94 DMA mapping framework by default aligns all buffers to the smallest
95 PAGE_SIZE order which is greater than or equal to the requested buffer
96 size. This works well for buffers up to a few hundreds kilobytes, but
97 for larger buffers it just a waste of address space. Drivers which has
98 relatively small addressing window (like 64Mib) might run out of
99 virtual space with just a few allocations.
100
101 With this parameter you can specify the maximum PAGE_SIZE order for
102 DMA IOMMU buffers. Larger buffers will be aligned only to this
103 specified order. The order is expressed as a power of two multiplied
104 by the PAGE_SIZE.
105
106endif
107
Russell King1a189b92008-04-13 21:41:55 +0100108config HAVE_PWM
109 bool
110
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100111config MIGHT_HAVE_PCI
112 bool
113
Ralf Baechle75e71532007-02-09 17:08:58 +0000114config SYS_SUPPORTS_APM_EMULATION
115 bool
116
Linus Walleijbc581772009-09-15 17:30:37 +0100117config HAVE_TCM
118 bool
119 select GENERIC_ALLOCATOR
120
Russell Kinge119bff2010-01-10 17:23:29 +0000121config HAVE_PROC_CPU
122 bool
123
Al Viro5ea81762007-02-11 15:41:31 +0000124config NO_IOPORT
125 bool
Al Viro5ea81762007-02-11 15:41:31 +0000126
Linus Torvalds1da177e2005-04-16 15:20:36 -0700127config EISA
128 bool
129 ---help---
130 The Extended Industry Standard Architecture (EISA) bus was
131 developed as an open alternative to the IBM MicroChannel bus.
132
133 The EISA bus provided some of the features of the IBM MicroChannel
134 bus while maintaining backward compatibility with cards made for
135 the older ISA bus. The EISA bus saw limited use between 1988 and
136 1995 when it was made obsolete by the PCI bus.
137
138 Say Y here if you are building a kernel for an EISA-based machine.
139
140 Otherwise, say N.
141
142config SBUS
143 bool
144
Russell Kingf16fb1e2007-04-28 09:59:37 +0100145config STACKTRACE_SUPPORT
146 bool
147 default y
148
Nicolas Pitref76e9152008-04-24 01:31:46 -0400149config HAVE_LATENCYTOP_SUPPORT
150 bool
151 depends on !SMP
152 default y
153
Russell Kingf16fb1e2007-04-28 09:59:37 +0100154config LOCKDEP_SUPPORT
155 bool
156 default y
157
Russell King7ad1bcb2006-08-27 12:07:02 +0100158config TRACE_IRQFLAGS_SUPPORT
159 bool
160 default y
161
Linus Torvalds1da177e2005-04-16 15:20:36 -0700162config RWSEM_GENERIC_SPINLOCK
163 bool
164 default y
165
166config RWSEM_XCHGADD_ALGORITHM
167 bool
168
David Howellsf0d1b0b2006-12-08 02:37:49 -0800169config ARCH_HAS_ILOG2_U32
170 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800171
172config ARCH_HAS_ILOG2_U64
173 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800174
Ben Dooks89c52ed2009-07-30 23:23:24 +0100175config ARCH_HAS_CPUFREQ
176 bool
177 help
178 Internal node to signify that the ARCH has CPUFREQ support
179 and that the relevant menu configurations are displayed for
180 it.
181
Eduardo Valentin4a1b5732013-06-13 22:58:52 +0100182config ARCH_HAS_BANDGAP
183 bool
184
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800185config GENERIC_HWEIGHT
186 bool
187 default y
188
Linus Torvalds1da177e2005-04-16 15:20:36 -0700189config GENERIC_CALIBRATE_DELAY
190 bool
191 default y
192
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100193config ARCH_MAY_HAVE_PC_FDC
194 bool
195
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800196config ZONE_DMA
197 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800198
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800199config NEED_DMA_MAP_STATE
200 def_bool y
201
Rob Herring58af4a22012-03-20 14:33:01 -0500202config ARCH_HAS_DMA_SET_COHERENT_MASK
203 bool
204
Linus Torvalds1da177e2005-04-16 15:20:36 -0700205config GENERIC_ISA_DMA
206 bool
207
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208config FIQ
209 bool
210
Rob Herring13a50452012-02-07 09:28:22 -0600211config NEED_RET_TO_USER
212 bool
213
Al Viro034d2f52005-12-19 16:27:59 -0500214config ARCH_MTD_XIP
215 bool
216
Hyok S. Choic760fc12006-03-27 15:18:50 +0100217config VECTORS_BASE
218 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900219 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100220 default DRAM_BASE if REMAP_VECTORS_TO_RAM
221 default 0x00000000
222 help
Russell King19accfd2013-07-04 11:40:32 +0100223 The base address of exception vectors. This must be two pages
224 in size.
Hyok S. Choic760fc12006-03-27 15:18:50 +0100225
Russell Kingdc21af92011-01-04 19:09:43 +0000226config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100227 bool "Patch physical to virtual translations at runtime" if EMBEDDED
228 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100229 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000230 depends on !ARCH_REALVIEW || !SPARSEMEM
231 help
Russell King111e9a52011-05-12 10:02:42 +0100232 Patch phys-to-virt and virt-to-phys translation functions at
233 boot and module load time according to the position of the
234 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000235
Russell King111e9a52011-05-12 10:02:42 +0100236 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100237 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000238
Russell Kingc1beced2011-08-10 10:23:45 +0100239 Only disable this option if you know that you do not require
240 this feature (eg, building a kernel for a single machine) and
241 you need to shrink the kernel to the minimal size.
242
Rob Herring01464222012-08-28 13:06:41 -0500243config NEED_MACH_GPIO_H
244 bool
245 help
246 Select this when mach/gpio.h is required to provide special
247 definitions for this platform. The need for mach/gpio.h should
248 be avoided when possible.
249
Rob Herringc334bc12012-03-04 22:03:33 -0600250config NEED_MACH_IO_H
251 bool
252 help
253 Select this when mach/io.h is required to provide special
254 definitions for this platform. The need for mach/io.h should
255 be avoided when possible.
256
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400257config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400258 bool
Russell King111e9a52011-05-12 10:02:42 +0100259 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400260 Select this when mach/memory.h is required to provide special
261 definitions for this platform. The need for mach/memory.h should
262 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400263
264config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100265 hex "Physical address of main memory" if MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400266 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre974c0722011-12-02 23:09:42 +0100267 default DRAM_BASE if !MMU
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400268 help
269 Please provide the physical address corresponding to the
270 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000271
Simon Glass87e040b2011-08-16 23:44:26 +0100272config GENERIC_BUG
273 def_bool y
274 depends on BUG
275
Linus Torvalds1da177e2005-04-16 15:20:36 -0700276source "init/Kconfig"
277
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700278source "kernel/Kconfig.freezer"
279
Linus Torvalds1da177e2005-04-16 15:20:36 -0700280menu "System Type"
281
Hyok S. Choi3c427972009-07-24 12:35:00 +0100282config MMU
283 bool "MMU-based Paged Memory Management Support"
284 default y
285 help
286 Select if you want MMU-based virtualised addressing space
287 support by paged memory management. If unsure, say 'Y'.
288
Russell Kingccf50e22010-03-15 19:03:06 +0000289#
290# The "ARM system type" choice list is ordered alphabetically by option
291# text. Please add new entries in the option alphabetic order.
292#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700293choice
294 prompt "ARM system type"
Arnd Bergmann1420b222013-02-14 13:33:36 +0100295 default ARCH_VERSATILE if !MMU
296 default ARCH_MULTIPLATFORM if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700297
Rob Herring387798b2012-09-06 13:41:12 -0500298config ARCH_MULTIPLATFORM
299 bool "Allow multiple platforms to be selected"
Russell Kingb1b3f492012-10-06 17:12:25 +0100300 depends on MMU
Rob Herring387798b2012-09-06 13:41:12 -0500301 select ARM_PATCH_PHYS_VIRT
302 select AUTO_ZRELADDR
Dinh Nguyen66314222012-07-18 16:07:18 -0600303 select COMMON_CLK
Rob Herring387798b2012-09-06 13:41:12 -0500304 select MULTI_IRQ_HANDLER
Dinh Nguyen66314222012-07-18 16:07:18 -0600305 select SPARSE_IRQ
306 select USE_OF
Dinh Nguyen66314222012-07-18 16:07:18 -0600307
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100308config ARCH_INTEGRATOR
309 bool "ARM Ltd. Integrator family"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100310 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100311 select ARM_AMBA
Linus Walleija6131632012-06-11 17:33:12 +0200312 select COMMON_CLK
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200313 select COMMON_CLK_VERSATILE
Russell Kingb1b3f492012-10-06 17:12:25 +0100314 select GENERIC_CLOCKEVENTS
Linus Walleij9904f792011-12-09 10:29:23 +0100315 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000316 select ICST
Russell Kingb1b3f492012-10-06 17:12:25 +0100317 select MULTI_IRQ_HANDLER
318 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000319 select PLAT_VERSATILE
Linus Walleij695436e2012-02-26 10:46:48 +0100320 select SPARSE_IRQ
Linus Walleij2389d502012-10-31 22:04:31 +0100321 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100322 help
323 Support for ARM's Integrator platform.
324
325config ARCH_REALVIEW
326 bool "ARM Ltd. RealView family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100327 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100328 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100329 select ARM_TIMER_SP804
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200330 select COMMON_CLK
331 select COMMON_CLK_VERSATILE
Catalin Marinasae30cea2008-02-04 17:26:55 +0100332 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100333 select GPIO_PL061 if GPIOLIB
334 select ICST
335 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000336 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000337 select PLAT_VERSATILE_CLCD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100338 help
339 This enables support for ARM Ltd RealView boards.
340
341config ARCH_VERSATILE
342 bool "ARM Ltd. Versatile family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100343 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100344 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100345 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100346 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100347 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100348 select GENERIC_CLOCKEVENTS
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900349 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000350 select ICST
Russell Kingf4b8b312010-01-14 12:48:06 +0000351 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000352 select PLAT_VERSATILE_CLCD
Russell Kingb1b3f492012-10-06 17:12:25 +0100353 select PLAT_VERSATILE_CLOCK
Linus Walleij2389d502012-10-31 22:04:31 +0100354 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100355 help
356 This enables support for ARM Ltd Versatile board.
357
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100358config ARCH_AT91
359 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100360 select ARCH_REQUIRE_GPIOLIB
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100361 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100362 select HAVE_CLK
Nicolas Ferree2615012011-11-22 22:26:09 +0100363 select IRQ_DOMAIN
Rob Herring01464222012-08-28 13:06:41 -0500364 select NEED_MACH_GPIO_H
Rob Herring1ac02d72012-04-04 17:48:04 -0500365 select NEED_MACH_IO_H if PCCARD
Jean-Christophe PLAGNIOL-VILLARD6732ae52012-07-12 23:35:02 +0800366 select PINCTRL
367 select PINCTRL_AT91 if USE_OF
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100368 help
Nicolas Ferre929e9942012-03-15 12:21:12 +0100369 This enables support for systems based on Atmel
370 AT91RM9200 and AT91SAM9* processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100371
Russell King93e22562012-10-12 14:20:52 +0100372config ARCH_CLPS711X
373 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
Alexander Shiyana3b8d4a2012-10-09 20:05:56 +0400374 select ARCH_REQUIRE_GPIOLIB
Alexander Shiyanea7d1bc2012-11-17 17:57:11 +0400375 select AUTO_ZRELADDR
Russell King93e22562012-10-12 14:20:52 +0100376 select CLKDEV_LOOKUP
Alexander Shiyanc99f72a2013-05-13 21:07:32 +0400377 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100378 select COMMON_CLK
379 select CPU_ARM720T
Alexander Shiyan4a8355c2012-10-10 19:45:27 +0400380 select GENERIC_CLOCKEVENTS
Alexander Shiyan65976192013-05-13 21:07:36 +0400381 select MFD_SYSCON
Alexander Shiyan99f04c82012-11-17 17:57:14 +0400382 select MULTI_IRQ_HANDLER
Alexander Shiyan0d8be812012-11-17 17:57:13 +0400383 select SPARSE_IRQ
Russell King93e22562012-10-12 14:20:52 +0100384 help
385 Support for Cirrus Logic 711x/721x/731x based boards.
386
Russell King788c9702009-04-26 14:21:59 +0100387config ARCH_GEMINI
388 bool "Cortina Systems Gemini"
Russell King788c9702009-04-26 14:21:59 +0100389 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000390 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100391 select CPU_FA526
Russell King171b3f02013-09-12 21:24:42 +0100392 select NEED_MACH_GPIO_H
Russell King788c9702009-04-26 14:21:59 +0100393 help
394 Support for the Cortina Systems Gemini family SoCs
395
Linus Torvalds1da177e2005-04-16 15:20:36 -0700396config ARCH_EBSA110
397 bool "EBSA-110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100398 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000399 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100400 select ISA
Rob Herringc334bc12012-03-04 22:03:33 -0600401 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400402 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100403 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700404 help
405 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000406 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700407 Ethernet interface, two PCMCIA sockets, two serial ports and a
408 parallel port.
409
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000410config ARCH_EP93XX
411 bool "EP93xx-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100412 select ARCH_HAS_HOLES_MEMORYMODEL
413 select ARCH_REQUIRE_GPIOLIB
414 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000415 select ARM_AMBA
416 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100417 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100418 select CPU_ARM920T
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100419 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000420 help
421 This enables support for the Cirrus EP93xx series of CPUs.
422
Linus Torvalds1da177e2005-04-16 15:20:36 -0700423config ARCH_FOOTBRIDGE
424 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000425 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000427 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200428 select HAVE_IDE
Rob Herring8ef6e622012-03-01 20:48:12 -0600429 select NEED_MACH_IO_H if !MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400430 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000431 help
432 Support for systems based on the DC21285 companion chip
433 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700434
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100435config ARCH_NETX
436 bool "Hilscher NetX based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100437 select ARM_VIC
Russell King234b6ced2011-05-08 14:09:47 +0100438 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000439 select CPU_ARM926T
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100440 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000441 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100442 This enables support for systems based on the Hilscher NetX Soc
443
Russell King3b938be2007-05-12 11:25:44 +0100444config ARCH_IOP13XX
445 bool "IOP13xx-based"
446 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100447 select CPU_XSC3
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400448 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600449 select NEED_RET_TO_USER
Russell Kingb1b3f492012-10-06 17:12:25 +0100450 select PCI
451 select PLAT_IOP
452 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100453 help
454 Support for Intel's IOP13XX (XScale) family of processors.
455
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100456config ARCH_IOP32X
457 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100458 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100459 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000460 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500461 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600462 select NEED_RET_TO_USER
Russell Kingf7e68bb2005-05-05 14:49:01 +0100463 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100464 select PLAT_IOP
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000465 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100466 Support for Intel's 80219 and IOP32X (XScale) family of
467 processors.
468
469config ARCH_IOP33X
470 bool "IOP33x-based"
471 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100472 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000473 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500474 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600475 select NEED_RET_TO_USER
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100476 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100477 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100478 help
479 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700480
Russell King3b938be2007-05-12 11:25:44 +0100481config ARCH_IXP4XX
482 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100483 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500484 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell Kingb1b3f492012-10-06 17:12:25 +0100485 select ARCH_REQUIRE_GPIOLIB
Russell King234b6ced2011-05-08 14:09:47 +0100486 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000487 select CPU_XSCALE
Russell Kingb1b3f492012-10-06 17:12:25 +0100488 select DMABOUNCE if PCI
Russell King3b938be2007-05-12 11:25:44 +0100489 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100490 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600491 select NEED_MACH_IO_H
Florian Fainelli9296d942013-04-09 14:29:26 +0200492 select USB_EHCI_BIG_ENDIAN_DESC
Russell King171b3f02013-09-12 21:24:42 +0100493 select USB_EHCI_BIG_ENDIAN_MMIO
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100494 help
Russell King3b938be2007-05-12 11:25:44 +0100495 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100496
Saeed Bisharaedabd382009-08-06 15:12:43 +0300497config ARCH_DOVE
498 bool "Marvell Dove"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300499 select ARCH_REQUIRE_GPIOLIB
Sebastian Hesselbarth756b2532013-05-02 19:56:12 +0100500 select CPU_PJ4
Saeed Bisharaedabd382009-08-06 15:12:43 +0300501 select GENERIC_CLOCKEVENTS
Russell King0f81bd42012-09-09 20:34:13 +0100502 select MIGHT_HAVE_PCI
Russell King171b3f02013-09-12 21:24:42 +0100503 select MVEBU_MBUS
Sebastian Hesselbarth9139acd2012-11-19 10:39:55 +0100504 select PINCTRL
505 select PINCTRL_DOVE
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200506 select PLAT_ORION_LEGACY
Russell King0f81bd42012-09-09 20:34:13 +0100507 select USB_ARCH_HAS_EHCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300508 help
509 Support for the Marvell Dove SoC 88AP510
510
Saeed Bishara651c74c2008-06-22 22:45:06 +0200511config ARCH_KIRKWOOD
512 bool "Marvell Kirkwood"
Andrew Lunn0e2ee0c2013-01-27 11:07:23 +0100513 select ARCH_HAS_CPUFREQ
Erik Benadaa8865652009-05-28 17:08:55 -0700514 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100515 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200516 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100517 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100518 select PCI
Jason Gunthorpe1dc831b2012-11-21 00:19:06 -0700519 select PCI_QUIRKS
Andrew Lunnf9e75922012-11-17 17:00:44 +0100520 select PINCTRL
521 select PINCTRL_KIRKWOOD
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200522 select PLAT_ORION_LEGACY
Saeed Bishara651c74c2008-06-22 22:45:06 +0200523 help
524 Support for the following Marvell Kirkwood series SoCs:
525 88F6180, 88F6192 and 88F6281.
526
Russell King788c9702009-04-26 14:21:59 +0100527config ARCH_MV78XX0
528 bool "Marvell MV78xx0"
Erik Benadaa8865652009-05-28 17:08:55 -0700529 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100530 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100531 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100532 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100533 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200534 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100535 help
536 Support for the following Marvell MV78xx0 series SoCs:
537 MV781x0, MV782x0.
538
539config ARCH_ORION5X
540 bool "Marvell Orion"
541 depends on MMU
Erik Benadaa8865652009-05-28 17:08:55 -0700542 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100543 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100544 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100545 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100546 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200547 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100548 help
549 Support for the following Marvell Orion 5x series SoCs:
550 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
551 Orion-2 (5281), Orion-1-90 (6183).
552
553config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500554 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100555 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100556 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100557 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100558 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100559 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800560 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800561 select IRQ_DOMAIN
Haojian Zhuang0f374562013-04-21 16:53:02 +0800562 select MULTI_IRQ_HANDLER
Russell Kingb1b3f492012-10-06 17:12:25 +0100563 select NEED_MACH_GPIO_H
Axel Lin7c8f86a2012-11-28 14:42:35 +0800564 select PINCTRL
Russell King788c9702009-04-26 14:21:59 +0100565 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400566 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100567 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500568 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100569
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100570config ARCH_KS8695
571 bool "Micrel/Kendin KS8695"
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100572 select ARCH_REQUIRE_GPIOLIB
Linus Walleijc7e783d2012-08-29 20:27:22 +0200573 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100574 select CPU_ARM922T
Linus Walleijc7e783d2012-08-29 20:27:22 +0200575 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100576 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100577 help
578 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
579 System-on-Chip devices.
580
Russell King788c9702009-04-26 14:21:59 +0100581config ARCH_W90X900
582 bool "Nuvoton W90X900 CPU"
wanzongshunc52d3d62009-06-10 15:49:32 +0100583 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100584 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100585 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100586 select CPU_ARM926T
wanzongshun58b53692009-08-14 15:36:44 +0100587 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200588 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100589 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
590 At present, the w90x900 has been renamed nuc900, regarding
591 the ARM series product line, you can login the following
592 link address to know more.
593
594 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
595 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400596
Russell King93e22562012-10-12 14:20:52 +0100597config ARCH_LPC32XX
598 bool "NXP LPC32XX"
599 select ARCH_REQUIRE_GPIOLIB
600 select ARM_AMBA
Russell King40737232011-01-06 22:32:52 +0000601 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100602 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100603 select CPU_ARM926T
604 select GENERIC_CLOCKEVENTS
605 select HAVE_IDE
606 select HAVE_PWM
607 select USB_ARCH_HAS_OHCI
608 select USE_OF
609 help
610 Support for the NXP LPC32XX family of processors
611
Linus Torvalds1da177e2005-04-16 15:20:36 -0700612config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700613 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100614 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100615 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100616 select ARCH_MTD_XIP
617 select ARCH_REQUIRE_GPIOLIB
618 select ARM_CPU_SUSPEND if PM
619 select AUTO_ZRELADDR
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100620 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100621 select CLKSRC_MMIO
Eric Miao981d0f32007-07-24 01:22:43 +0100622 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800623 select GPIO_PXA
Russell Kingb1b3f492012-10-06 17:12:25 +0100624 select HAVE_IDE
625 select MULTI_IRQ_HANDLER
626 select NEED_MACH_GPIO_H
Eric Miaobd5ce432009-01-20 12:06:01 +0800627 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800628 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000629 help
eric miao2c8086a2007-09-11 19:13:17 -0700630 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700631
Russell King788c9702009-04-26 14:21:59 +0100632config ARCH_MSM
633 bool "Qualcomm MSM"
Pavel Machek923a0812010-06-02 11:11:12 -0700634 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800635 select CLKDEV_LOOKUP
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
Russell Kingb1b3f492012-10-06 17:12:25 +0100653 select HAVE_CLK
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900654 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000655 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000656 select MIGHT_HAVE_CACHE_L2X0
Magnus Damm60f14352010-12-28 08:26:52 +0000657 select MULTI_IRQ_HANDLER
Russell Kingb1b3f492012-10-06 17:12:25 +0100658 select NO_IOPORT
Laurent Pinchart2cd3c922013-05-31 05:00:27 +0200659 select PINCTRL
Russell Kingb1b3f492012-10-06 17:12:25 +0100660 select PM_GENERIC_DOMAINS if PM
661 select SPARSE_IRQ
Magnus Dammc793c1b2010-02-05 11:14:49 +0000662 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900663 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000664
Linus Torvalds1da177e2005-04-16 15:20:36 -0700665config ARCH_RPC
666 bool "RiscPC"
667 select ARCH_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100668 select ARCH_MAY_HAVE_PC_FDC
Russell King07f841b2008-10-01 17:11:06 +0100669 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000670 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100671 select FIQ
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200672 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100673 select HAVE_PATA_PLATFORM
674 select ISA_DMA_API
Rob Herringc334bc12012-03-04 22:03:33 -0600675 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400676 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100677 select NO_IOPORT
Arnd Bergmannb4811ba2013-03-13 17:36:37 +0100678 select VIRT_TO_BUS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700679 help
680 On the Acorn Risc-PC, Linux can support the internal IDE disk and
681 CD-ROM interface, serial and parallel port, and the floppy drive.
682
683config ARCH_SA1100
684 bool "SA1100-based"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100685 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100686 select ARCH_MTD_XIP
Michael Buesch7444a722008-07-25 01:46:11 -0700687 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100688 select ARCH_SPARSEMEM_ENABLE
689 select CLKDEV_LOOKUP
690 select CLKSRC_MMIO
691 select CPU_FREQ
692 select CPU_SA1100
693 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200694 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100695 select ISA
Rob Herring01464222012-08-28 13:06:41 -0500696 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400697 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100698 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000699 help
700 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700701
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900702config ARCH_S3C24XX
703 bool "Samsung S3C24XX SoCs"
Ben Dooks9d56c022009-07-30 23:23:25 +0100704 select ARCH_HAS_CPUFREQ
Kukjin Kim53650432013-04-04 09:04:30 +0900705 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100706 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200707 select CLKSRC_SAMSUNG_PWM
Romain Naour7f78b6e2013-01-09 18:47:04 -0800708 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900709 select GPIO_SAMSUNG
Russell Kingb1b3f492012-10-06 17:12:25 +0100710 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900711 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900712 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100713 select HAVE_S3C_RTC if RTC_CLASS
Heiko Stuebner17453dd2013-03-07 12:38:25 +0900714 select MULTI_IRQ_HANDLER
Rob Herring01464222012-08-28 13:06:41 -0500715 select NEED_MACH_GPIO_H
Rob Herringc334bc12012-03-04 22:03:33 -0600716 select NEED_MACH_IO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900717 select SAMSUNG_ATAGS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700718 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900719 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
720 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
721 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
722 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900723
Ben Dooksa08ab632008-10-21 14:06:39 +0100724config ARCH_S3C64XX
725 bool "Samsung S3C64XX"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100726 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900727 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100728 select ARM_VIC
729 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200730 select CLKSRC_SAMSUNG_PWM
Russell Kingb1b3f492012-10-06 17:12:25 +0100731 select CPU_V6
Romain Naour04a49b72013-01-09 18:47:04 -0800732 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900733 select GPIO_SAMSUNG
Russell Kingb1b3f492012-10-06 17:12:25 +0100734 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900735 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900736 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100737 select HAVE_TCM
Rob Herring01464222012-08-28 13:06:41 -0500738 select NEED_MACH_GPIO_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100739 select NO_IOPORT
740 select PLAT_SAMSUNG
741 select S3C_DEV_NAND
742 select S3C_GPIO_TRACK
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900743 select SAMSUNG_ATAGS
Russell Kingb1b3f492012-10-06 17:12:25 +0100744 select SAMSUNG_CLKSRC
745 select SAMSUNG_GPIOLIB_4BIT
Tomasz Figa88f59732013-06-17 23:45:37 +0900746 select SAMSUNG_WDT_RESET
Russell Kingb1b3f492012-10-06 17:12:25 +0100747 select USB_ARCH_HAS_OHCI
Ben Dooksa08ab632008-10-21 14:06:39 +0100748 help
749 Samsung S3C64XX series based systems
750
Kukjin Kim49b7a492010-09-07 15:47:18 +0900751config ARCH_S5P64X0
752 bool "Samsung S5P6440 S5P6450"
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900753 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200754 select CLKSRC_SAMSUNG_PWM
Russell Kingb1b3f492012-10-06 17:12:25 +0100755 select CPU_V6
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900756 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900757 select GPIO_SAMSUNG
Russell Kingb1b3f492012-10-06 17:12:25 +0100758 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900759 select HAVE_S3C2410_I2C if I2C
Russell Kingb1b3f492012-10-06 17:12:25 +0100760 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim754961a2010-11-13 16:11:46 +0900761 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500762 select NEED_MACH_GPIO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900763 select SAMSUNG_ATAGS
Russell King171b3f02013-09-12 21:24:42 +0100764 select SAMSUNG_WDT_RESET
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900765 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900766 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
767 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900768
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200769config ARCH_S5PC100
770 bool "Samsung S5PC100"
Kukjin Kim53650432013-04-04 09:04:30 +0900771 select ARCH_REQUIRE_GPIOLIB
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900772 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200773 select CLKSRC_SAMSUNG_PWM
Byungho Min5a7652f2009-06-23 21:39:42 +0900774 select CPU_V7
Romain Naour6a5a2e32013-01-09 18:47:04 -0800775 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900776 select GPIO_SAMSUNG
Russell Kingb1b3f492012-10-06 17:12:25 +0100777 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900778 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900779 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100780 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500781 select NEED_MACH_GPIO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900782 select SAMSUNG_ATAGS
Russell King171b3f02013-09-12 21:24:42 +0100783 select SAMSUNG_WDT_RESET
Byungho Min5a7652f2009-06-23 21:39:42 +0900784 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200785 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900786
Kukjin Kim170f4e42010-02-24 16:40:44 +0900787config ARCH_S5PV210
788 bool "Samsung S5PV210/S5PC110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100789 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900790 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100791 select ARCH_SPARSEMEM_ENABLE
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900792 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200793 select CLKSRC_SAMSUNG_PWM
Russell Kingb1b3f492012-10-06 17:12:25 +0100794 select CPU_V7
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900795 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900796 select GPIO_SAMSUNG
Russell Kingb1b3f492012-10-06 17:12:25 +0100797 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900798 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900799 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100800 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500801 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400802 select NEED_MACH_MEMORY_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900803 select SAMSUNG_ATAGS
Kukjin Kim170f4e42010-02-24 16:40:44 +0900804 help
805 Samsung S5PV210/S5PC110 series based systems
806
Kukjin Kim83014572011-11-06 13:54:56 +0900807config ARCH_EXYNOS
Russell King93e22562012-10-12 14:20:52 +0100808 bool "Samsung EXYNOS"
Russell Kingb1b3f492012-10-06 17:12:25 +0100809 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900810 select ARCH_HAS_HOLES_MEMORYMODEL
Tomasz Figae245f962013-06-19 01:26:42 +0900811 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100812 select ARCH_SPARSEMEM_ENABLE
Tomasz Figae245f962013-06-19 01:26:42 +0900813 select ARM_GIC
Russell Kingb1b3f492012-10-06 17:12:25 +0100814 select CLKDEV_LOOKUP
Olof Johansson340fcb52013-04-26 11:47:45 -0700815 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100816 select CPU_V7
817 select GENERIC_CLOCKEVENTS
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900818 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900819 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900820 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100821 select HAVE_S3C_RTC if RTC_CLASS
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400822 select NEED_MACH_MEMORY_H
Tomasz Figa6e726ea2013-06-15 09:28:55 +0900823 select SPARSE_IRQ
Tomasz Figaf8b1ac02013-06-15 09:01:11 +0900824 select USE_OF
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900825 help
Kukjin Kim83014572011-11-06 13:54:56 +0900826 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900827
Linus Torvalds1da177e2005-04-16 15:20:36 -0700828config ARCH_SHARK
829 bool "Shark"
Russell Kingb1b3f492012-10-06 17:12:25 +0100830 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000831 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100832 select ISA
833 select ISA_DMA
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400834 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100835 select PCI
Arnd Bergmannb4811ba2013-03-13 17:36:37 +0100836 select VIRT_TO_BUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100837 select ZONE_DMA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000838 help
839 Support for the StrongARM based Digital DNARD machine, also known
840 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700841
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100842config ARCH_DAVINCI
843 bool "TI DaVinci"
Russell Kingb1b3f492012-10-06 17:12:25 +0100844 select ARCH_HAS_HOLES_MEMORYMODEL
David Brownelldce11152008-09-07 23:41:04 -0700845 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100846 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700847 select GENERIC_ALLOCATOR
Russell Kingb1b3f492012-10-06 17:12:25 +0100848 select GENERIC_CLOCKEVENTS
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100849 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100850 select HAVE_IDE
Rob Herring01464222012-08-28 13:06:41 -0500851 select NEED_MACH_GPIO_H
Matt Porter3ad7a422013-03-06 11:15:31 -0500852 select TI_PRIV_EDMA
Sekhar Nori689e3312012-08-28 15:27:52 +0530853 select USE_OF
Russell Kingb1b3f492012-10-06 17:12:25 +0100854 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100855 help
856 Support for TI's DaVinci platform.
857
Tony Lindgrena0694862013-01-11 11:24:20 -0800858config ARCH_OMAP1
859 bool "TI OMAP1"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600860 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100861 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100862 select ARCH_HAS_HOLES_MEMORYMODEL
Tony Lindgrena0694862013-01-11 11:24:20 -0800863 select ARCH_OMAP
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100864 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200865 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100866 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100867 select GENERIC_CLOCKEVENTS
Tony Lindgrena0694862013-01-11 11:24:20 -0800868 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100869 select HAVE_CLK
Tony Lindgrena0694862013-01-11 11:24:20 -0800870 select HAVE_IDE
871 select IRQ_DOMAIN
872 select NEED_MACH_IO_H if PCCARD
873 select NEED_MACH_MEMORY_H
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100874 help
Tony Lindgrena0694862013-01-11 11:24:20 -0800875 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
Binghua Duan02c981c2011-07-08 17:40:12 +0800876
Linus Torvalds1da177e2005-04-16 15:20:36 -0700877endchoice
878
Rob Herring387798b2012-09-06 13:41:12 -0500879menu "Multiple platform selection"
880 depends on ARCH_MULTIPLATFORM
881
882comment "CPU Core family selection"
883
Rob Herring387798b2012-09-06 13:41:12 -0500884config ARCH_MULTI_V4T
885 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500886 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100887 select ARCH_MULTI_V4_V5
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200888 select CPU_ARM920T if !(CPU_ARM7TDMI || CPU_ARM720T || \
889 CPU_ARM740T || CPU_ARM9TDMI || CPU_ARM922T || \
890 CPU_ARM925T || CPU_ARM940T)
Rob Herring387798b2012-09-06 13:41:12 -0500891
892config ARCH_MULTI_V5
893 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500894 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100895 select ARCH_MULTI_V4_V5
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200896 select CPU_ARM926T if (!CPU_ARM946E || CPU_ARM1020 || \
897 CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || \
898 CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_FEROCEON)
Rob Herring387798b2012-09-06 13:41:12 -0500899
900config ARCH_MULTI_V4_V5
901 bool
902
903config ARCH_MULTI_V6
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800904 bool "ARMv6 based platforms (ARM11)"
Rob Herring387798b2012-09-06 13:41:12 -0500905 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100906 select CPU_V6
Rob Herring387798b2012-09-06 13:41:12 -0500907
908config ARCH_MULTI_V7
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800909 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -0500910 default y
911 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100912 select CPU_V7
Rob Herring387798b2012-09-06 13:41:12 -0500913
914config ARCH_MULTI_V6_V7
915 bool
916
917config ARCH_MULTI_CPU_AUTO
918 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
919 select ARCH_MULTI_V5
920
921endmenu
922
Russell Kingccf50e22010-03-15 19:03:06 +0000923#
924# This is sorted alphabetically by mach-* pathname. However, plat-*
925# Kconfigs may be included either alphabetically (according to the
926# plat- suffix) or along side the corresponding mach-* source.
927#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +0200928source "arch/arm/mach-mvebu/Kconfig"
929
Russell King95b8f202010-01-14 11:43:54 +0000930source "arch/arm/mach-at91/Kconfig"
931
Christian Daudt8ac49e02012-11-19 09:46:10 -0800932source "arch/arm/mach-bcm/Kconfig"
933
Stephen Warrenf1ac9222013-03-11 22:40:18 -0600934source "arch/arm/mach-bcm2835/Kconfig"
935
Linus Torvalds1da177e2005-04-16 15:20:36 -0700936source "arch/arm/mach-clps711x/Kconfig"
937
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300938source "arch/arm/mach-cns3xxx/Kconfig"
939
Russell King95b8f202010-01-14 11:43:54 +0000940source "arch/arm/mach-davinci/Kconfig"
941
942source "arch/arm/mach-dove/Kconfig"
943
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000944source "arch/arm/mach-ep93xx/Kconfig"
945
Linus Torvalds1da177e2005-04-16 15:20:36 -0700946source "arch/arm/mach-footbridge/Kconfig"
947
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200948source "arch/arm/mach-gemini/Kconfig"
949
Rob Herring387798b2012-09-06 13:41:12 -0500950source "arch/arm/mach-highbank/Kconfig"
951
Linus Torvalds1da177e2005-04-16 15:20:36 -0700952source "arch/arm/mach-integrator/Kconfig"
953
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100954source "arch/arm/mach-iop32x/Kconfig"
955
956source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700957
Dan Williams285f5fa2006-12-07 02:59:39 +0100958source "arch/arm/mach-iop13xx/Kconfig"
959
Linus Torvalds1da177e2005-04-16 15:20:36 -0700960source "arch/arm/mach-ixp4xx/Kconfig"
961
Santosh Shilimkar828989a2013-06-10 11:27:13 -0400962source "arch/arm/mach-keystone/Kconfig"
963
Russell King95b8f202010-01-14 11:43:54 +0000964source "arch/arm/mach-kirkwood/Kconfig"
965
966source "arch/arm/mach-ks8695/Kconfig"
967
Russell King95b8f202010-01-14 11:43:54 +0000968source "arch/arm/mach-msm/Kconfig"
969
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200970source "arch/arm/mach-mv78xx0/Kconfig"
971
Shawn Guo3995eb82012-09-13 19:48:07 +0800972source "arch/arm/mach-imx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700973
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800974source "arch/arm/mach-mxs/Kconfig"
975
Russell King95b8f202010-01-14 11:43:54 +0000976source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800977
Russell King95b8f202010-01-14 11:43:54 +0000978source "arch/arm/mach-nomadik/Kconfig"
Russell King95b8f202010-01-14 11:43:54 +0000979
Daniel Tang9851ca52013-06-11 18:40:17 +1000980source "arch/arm/mach-nspire/Kconfig"
981
Tony Lindgrend48af152005-07-10 19:58:17 +0100982source "arch/arm/plat-omap/Kconfig"
983
984source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700985
Tony Lindgren1dbae812005-11-10 14:26:51 +0000986source "arch/arm/mach-omap2/Kconfig"
987
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400988source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400989
Rob Herring387798b2012-09-06 13:41:12 -0500990source "arch/arm/mach-picoxcell/Kconfig"
991
Russell King95b8f202010-01-14 11:43:54 +0000992source "arch/arm/mach-pxa/Kconfig"
993source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700994
Russell King95b8f202010-01-14 11:43:54 +0000995source "arch/arm/mach-mmp/Kconfig"
996
997source "arch/arm/mach-realview/Kconfig"
998
Heiko Stuebnerd63dc052013-06-02 23:09:41 +0200999source "arch/arm/mach-rockchip/Kconfig"
1000
Russell King95b8f202010-01-14 11:43:54 +00001001source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001002
Ben Dookscf383672009-11-10 00:14:58 +00001003source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001004
Rob Herring387798b2012-09-06 13:41:12 -05001005source "arch/arm/mach-socfpga/Kconfig"
1006
Arnd Bergmanna7ed0992012-12-02 15:12:47 +01001007source "arch/arm/mach-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001008
Srinivas Kandagatla65ebcc12013-06-25 12:15:10 +01001009source "arch/arm/mach-sti/Kconfig"
1010
Kukjin Kim85fd6d62012-02-06 09:38:19 +09001011source "arch/arm/mach-s3c24xx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001012
Ben Dooksa08ab632008-10-21 14:06:39 +01001013if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001014source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001015endif
1016
Kukjin Kim49b7a492010-09-07 15:47:18 +09001017source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001018
Byungho Min5a7652f2009-06-23 21:39:42 +09001019source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001020
Kukjin Kim170f4e42010-02-24 16:40:44 +09001021source "arch/arm/mach-s5pv210/Kconfig"
1022
Kukjin Kim83014572011-11-06 13:54:56 +09001023source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001024
Russell King882d01f2010-03-02 23:40:15 +00001025source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001026
Maxime Ripard3b526342012-11-08 12:40:16 +01001027source "arch/arm/mach-sunxi/Kconfig"
1028
Barry Song156a0992012-08-23 13:41:58 +08001029source "arch/arm/mach-prima2/Kconfig"
1030
Erik Gillingc5f80062010-01-21 16:53:02 -08001031source "arch/arm/mach-tegra/Kconfig"
1032
Russell King95b8f202010-01-14 11:43:54 +00001033source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001034
Russell King95b8f202010-01-14 11:43:54 +00001035source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001036
1037source "arch/arm/mach-versatile/Kconfig"
1038
Russell Kingceade892010-02-11 21:44:53 +00001039source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001040source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001041
Marc Zyngier2a0ba732012-10-05 13:47:39 +01001042source "arch/arm/mach-virt/Kconfig"
1043
Tony Prisk6f35f9a2012-10-11 20:13:09 +13001044source "arch/arm/mach-vt8500/Kconfig"
1045
wanzongshun7ec80dd2008-12-03 03:55:38 +01001046source "arch/arm/mach-w90x900/Kconfig"
1047
Josh Cartwright9a45eb62012-11-19 11:38:29 -06001048source "arch/arm/mach-zynq/Kconfig"
1049
Linus Torvalds1da177e2005-04-16 15:20:36 -07001050# Definitions to make life easier
1051config ARCH_ACORN
1052 bool
1053
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001054config PLAT_IOP
1055 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001056 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001057
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001058config PLAT_ORION
1059 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001060 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +01001061 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001062 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +02001063 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001064
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +02001065config PLAT_ORION_LEGACY
1066 bool
1067 select PLAT_ORION
1068
Eric Miaobd5ce432009-01-20 12:06:01 +08001069config PLAT_PXA
1070 bool
1071
Russell Kingf4b8b312010-01-14 12:48:06 +00001072config PLAT_VERSATILE
1073 bool
1074
Russell Kinge3887712010-01-14 13:30:16 +00001075config ARM_TIMER_SP804
1076 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001077 select CLKSRC_MMIO
Rob Herring7a0eca72013-03-25 11:23:52 -05001078 select CLKSRC_OF if OF
Russell Kinge3887712010-01-14 13:30:16 +00001079
Linus Torvalds1da177e2005-04-16 15:20:36 -07001080source arch/arm/mm/Kconfig
1081
Russell King958cab02011-12-11 10:04:00 +00001082config ARM_NR_BANKS
1083 int
1084 default 16 if ARCH_EP93XX
1085 default 8
1086
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001087config IWMMXT
Russell King698613b2013-04-03 16:33:26 +01001088 bool "Enable iWMMXt support" if !CPU_PJ4
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001089 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
Russell King698613b2013-04-03 16:33:26 +01001090 default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001091 help
1092 Enable support for iWMMXt context switching at run time if
1093 running on a CPU that supports it.
1094
Linus Torvalds1da177e2005-04-16 15:20:36 -07001095config XSCALE_PMU
1096 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001097 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001098 default y
1099
eric miao52108642010-12-13 09:42:34 +01001100config MULTI_IRQ_HANDLER
1101 bool
1102 help
1103 Allow each machine to specify it's own IRQ handler at run time.
1104
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001105if !MMU
1106source "arch/arm/Kconfig-nommu"
1107endif
1108
Gregory CLEMENT3e0a07f2013-06-23 10:17:11 +01001109config PJ4B_ERRATA_4742
1110 bool "PJ4B Errata 4742: IDLE Wake Up Commands can Cause the CPU Core to Cease Operation"
1111 depends on CPU_PJ4B && MACH_ARMADA_370
1112 default y
1113 help
1114 When coming out of either a Wait for Interrupt (WFI) or a Wait for
1115 Event (WFE) IDLE states, a specific timing sensitivity exists between
1116 the retiring WFI/WFE instructions and the newly issued subsequent
1117 instructions. This sensitivity can result in a CPU hang scenario.
1118 Workaround:
1119 The software must insert either a Data Synchronization Barrier (DSB)
1120 or Data Memory Barrier (DMB) command immediately after the WFI/WFE
1121 instruction
1122
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001123config ARM_ERRATA_326103
1124 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1125 depends on CPU_V6
1126 help
1127 Executing a SWP instruction to read-only memory does not set bit 11
1128 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1129 treat the access as a read, preventing a COW from occurring and
1130 causing the faulting task to livelock.
1131
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001132config ARM_ERRATA_411920
1133 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001134 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001135 help
1136 Invalidation of the Instruction Cache operation can
1137 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1138 It does not affect the MPCore. This option enables the ARM Ltd.
1139 recommended workaround.
1140
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001141config ARM_ERRATA_430973
1142 bool "ARM errata: Stale prediction on replaced interworking branch"
1143 depends on CPU_V7
1144 help
1145 This option enables the workaround for the 430973 Cortex-A8
1146 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1147 interworking branch is replaced with another code sequence at the
1148 same virtual address, whether due to self-modifying code or virtual
1149 to physical address re-mapping, Cortex-A8 does not recover from the
1150 stale interworking branch prediction. This results in Cortex-A8
1151 executing the new code sequence in the incorrect ARM or Thumb state.
1152 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1153 and also flushes the branch target cache at every context switch.
1154 Note that setting specific bits in the ACTLR register may not be
1155 available in non-secure mode.
1156
Catalin Marinas855c5512009-04-30 17:06:15 +01001157config ARM_ERRATA_458693
1158 bool "ARM errata: Processor deadlock when a false hazard is created"
1159 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001160 depends on !ARCH_MULTIPLATFORM
Catalin Marinas855c5512009-04-30 17:06:15 +01001161 help
1162 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1163 erratum. For very specific sequences of memory operations, it is
1164 possible for a hazard condition intended for a cache line to instead
1165 be incorrectly associated with a different cache line. This false
1166 hazard might then cause a processor deadlock. The workaround enables
1167 the L1 caching of the NEON accesses and disables the PLD instruction
1168 in the ACTLR register. Note that setting specific bits in the ACTLR
1169 register may not be available in non-secure mode.
1170
Catalin Marinas0516e462009-04-30 17:06:20 +01001171config ARM_ERRATA_460075
1172 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1173 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001174 depends on !ARCH_MULTIPLATFORM
Catalin Marinas0516e462009-04-30 17:06:20 +01001175 help
1176 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1177 erratum. Any asynchronous access to the L2 cache may encounter a
1178 situation in which recent store transactions to the L2 cache are lost
1179 and overwritten with stale memory contents from external memory. The
1180 workaround disables the write-allocate mode for the L2 cache via the
1181 ACTLR register. Note that setting specific bits in the ACTLR register
1182 may not be available in non-secure mode.
1183
Will Deacon9f050272010-09-14 09:51:43 +01001184config ARM_ERRATA_742230
1185 bool "ARM errata: DMB operation may be faulty"
1186 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001187 depends on !ARCH_MULTIPLATFORM
Will Deacon9f050272010-09-14 09:51:43 +01001188 help
1189 This option enables the workaround for the 742230 Cortex-A9
1190 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1191 between two write operations may not ensure the correct visibility
1192 ordering of the two writes. This workaround sets a specific bit in
1193 the diagnostic register of the Cortex-A9 which causes the DMB
1194 instruction to behave as a DSB, ensuring the correct behaviour of
1195 the two writes.
1196
Will Deacona672e992010-09-14 09:53:02 +01001197config ARM_ERRATA_742231
1198 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1199 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001200 depends on !ARCH_MULTIPLATFORM
Will Deacona672e992010-09-14 09:53:02 +01001201 help
1202 This option enables the workaround for the 742231 Cortex-A9
1203 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1204 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1205 accessing some data located in the same cache line, may get corrupted
1206 data due to bad handling of the address hazard when the line gets
1207 replaced from one of the CPUs at the same time as another CPU is
1208 accessing it. This workaround sets specific bits in the diagnostic
1209 register of the Cortex-A9 which reduces the linefill issuing
1210 capabilities of the processor.
1211
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001212config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001213 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001214 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001215 help
1216 The PL310 L2 cache controller implements three types of Clean &
1217 Invalidate maintenance operations: by Physical Address
1218 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1219 They are architecturally defined to behave as the execution of a
1220 clean operation followed immediately by an invalidate operation,
1221 both performing to the same memory location. This functionality
1222 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001223 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001224
Jon Medhurst69155792013-06-07 10:35:35 +01001225config ARM_ERRATA_643719
1226 bool "ARM errata: LoUIS bit field in CLIDR register is incorrect"
1227 depends on CPU_V7 && SMP
1228 help
1229 This option enables the workaround for the 643719 Cortex-A9 (prior to
1230 r1p0) erratum. On affected cores the LoUIS bit field of the CLIDR
1231 register returns zero when it should return one. The workaround
1232 corrects this value, ensuring cache maintenance operations which use
1233 it behave as intended and avoiding data corruption.
1234
Will Deaconcdf357f2010-08-05 11:20:51 +01001235config ARM_ERRATA_720789
1236 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001237 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001238 help
1239 This option enables the workaround for the 720789 Cortex-A9 (prior to
1240 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1241 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1242 As a consequence of this erratum, some TLB entries which should be
1243 invalidated are not, resulting in an incoherency in the system page
1244 tables. The workaround changes the TLB flushing routines to invalidate
1245 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001246
Russell King1f0090a2011-03-16 23:35:25 +00001247config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001248 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001249 depends on CACHE_L2X0
1250 help
1251 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1252 operation (offset 0x7FC). This operation runs in background so that
1253 PL310 can handle normal accesses while it is in progress. Under very
1254 rare circumstances, due to this erratum, write data can be lost when
1255 PL310 treats a cacheable write transaction during a Clean &
1256 Invalidate by Way operation.
1257
Will Deacon475d92f2010-09-28 14:02:02 +01001258config ARM_ERRATA_743622
1259 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1260 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001261 depends on !ARCH_MULTIPLATFORM
Will Deacon475d92f2010-09-28 14:02:02 +01001262 help
1263 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001264 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001265 optimisation in the Cortex-A9 Store Buffer may lead to data
1266 corruption. This workaround sets a specific bit in the diagnostic
1267 register of the Cortex-A9 which disables the Store Buffer
1268 optimisation, preventing the defect from occurring. This has no
1269 visible impact on the overall performance or power consumption of the
1270 processor.
1271
Will Deacon9a27c272011-02-18 16:36:35 +01001272config ARM_ERRATA_751472
1273 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001274 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001275 depends on !ARCH_MULTIPLATFORM
Will Deacon9a27c272011-02-18 16:36:35 +01001276 help
1277 This option enables the workaround for the 751472 Cortex-A9 (prior
1278 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1279 completion of a following broadcasted operation if the second
1280 operation is received by a CPU before the ICIALLUIS has completed,
1281 potentially leading to corrupted entries in the cache or TLB.
1282
Will Deaconfa0ce402011-11-14 17:24:57 +01001283config PL310_ERRATA_753970
1284 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001285 depends on CACHE_PL310
1286 help
1287 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1288
1289 Under some condition the effect of cache sync operation on
1290 the store buffer still remains when the operation completes.
1291 This means that the store buffer is always asked to drain and
1292 this prevents it from merging any further writes. The workaround
1293 is to replace the normal offset of cache sync operation (0x730)
1294 by another offset targeting an unmapped PL310 register 0x740.
1295 This has the same effect as the cache sync operation: store buffer
1296 drain and waiting for all buffers empty.
1297
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001298config ARM_ERRATA_754322
1299 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1300 depends on CPU_V7
1301 help
1302 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1303 r3p*) erratum. A speculative memory access may cause a page table walk
1304 which starts prior to an ASID switch but completes afterwards. This
1305 can populate the micro-TLB with a stale entry which may be hit with
1306 the new ASID. This workaround places two dsb instructions in the mm
1307 switching code so that no page table walks can cross the ASID switch.
1308
Will Deacon5dab26a2011-03-04 12:38:54 +01001309config ARM_ERRATA_754327
1310 bool "ARM errata: no automatic Store Buffer drain"
1311 depends on CPU_V7 && SMP
1312 help
1313 This option enables the workaround for the 754327 Cortex-A9 (prior to
1314 r2p0) erratum. The Store Buffer does not have any automatic draining
1315 mechanism and therefore a livelock may occur if an external agent
1316 continuously polls a memory location waiting to observe an update.
1317 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1318 written polling loops from denying visibility of updates to memory.
1319
Catalin Marinas145e10e2011-08-15 11:04:41 +01001320config ARM_ERRATA_364296
1321 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
Fabio Estevamfd832472013-07-09 18:34:01 +01001322 depends on CPU_V6
Catalin Marinas145e10e2011-08-15 11:04:41 +01001323 help
1324 This options enables the workaround for the 364296 ARM1136
1325 r0p2 erratum (possible cache data corruption with
1326 hit-under-miss enabled). It sets the undocumented bit 31 in
1327 the auxiliary control register and the FI bit in the control
1328 register, thus disabling hit-under-miss without putting the
1329 processor into full low interrupt latency mode. ARM11MPCore
1330 is not affected.
1331
Will Deaconf630c1b2011-09-15 11:45:15 +01001332config ARM_ERRATA_764369
1333 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1334 depends on CPU_V7 && SMP
1335 help
1336 This option enables the workaround for erratum 764369
1337 affecting Cortex-A9 MPCore with two or more processors (all
1338 current revisions). Under certain timing circumstances, a data
1339 cache line maintenance operation by MVA targeting an Inner
1340 Shareable memory region may fail to proceed up to either the
1341 Point of Coherency or to the Point of Unification of the
1342 system. This workaround adds a DSB instruction before the
1343 relevant cache maintenance functions and sets a specific bit
1344 in the diagnostic control register of the SCU.
1345
Will Deacon11ed0ba2011-11-14 17:24:58 +01001346config PL310_ERRATA_769419
1347 bool "PL310 errata: no automatic Store Buffer drain"
1348 depends on CACHE_L2X0
1349 help
1350 On revisions of the PL310 prior to r3p2, the Store Buffer does
1351 not automatically drain. This can cause normal, non-cacheable
1352 writes to be retained when the memory system is idle, leading
1353 to suboptimal I/O performance for drivers using coherent DMA.
1354 This option adds a write barrier to the cpu_idle loop so that,
1355 on systems with an outer cache, the store buffer is drained
1356 explicitly.
1357
Simon Horman7253b852012-09-28 02:12:45 +01001358config ARM_ERRATA_775420
1359 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1360 depends on CPU_V7
1361 help
1362 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1363 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1364 operation aborts with MMU exception, it might cause the processor
1365 to deadlock. This workaround puts DSB before executing ISB if
1366 an abort may occur on cache maintenance.
1367
Catalin Marinas93dc6882013-03-26 23:35:04 +01001368config ARM_ERRATA_798181
1369 bool "ARM errata: TLBI/DSB failure on Cortex-A15"
1370 depends on CPU_V7 && SMP
1371 help
1372 On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
1373 adequately shooting down all use of the old entries. This
1374 option enables the Linux kernel workaround for this erratum
1375 which sends an IPI to the CPUs that are running the same ASID
1376 as the one being invalidated.
1377
Will Deacon84b65042013-08-20 17:29:55 +01001378config ARM_ERRATA_773022
1379 bool "ARM errata: incorrect instructions may be executed from loop buffer"
1380 depends on CPU_V7
1381 help
1382 This option enables the workaround for the 773022 Cortex-A15
1383 (up to r0p4) erratum. In certain rare sequences of code, the
1384 loop buffer may deliver incorrect instructions. This
1385 workaround disables the loop buffer to avoid the erratum.
1386
Linus Torvalds1da177e2005-04-16 15:20:36 -07001387endmenu
1388
1389source "arch/arm/common/Kconfig"
1390
Linus Torvalds1da177e2005-04-16 15:20:36 -07001391menu "Bus support"
1392
1393config ARM_AMBA
1394 bool
1395
1396config ISA
1397 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001398 help
1399 Find out whether you have ISA slots on your motherboard. ISA is the
1400 name of a bus system, i.e. the way the CPU talks to the other stuff
1401 inside your box. Other bus systems are PCI, EISA, MicroChannel
1402 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1403 newer boards don't support it. If you have ISA, say Y, otherwise N.
1404
Russell King065909b2006-01-04 15:44:16 +00001405# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001406config ISA_DMA
1407 bool
Russell King065909b2006-01-04 15:44:16 +00001408 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001409
Russell King065909b2006-01-04 15:44:16 +00001410# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001411config ISA_DMA_API
1412 bool
Al Viro5cae8412005-05-04 05:39:22 +01001413
Linus Torvalds1da177e2005-04-16 15:20:36 -07001414config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001415 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001416 help
1417 Find out whether you have a PCI motherboard. PCI is the name of a
1418 bus system, i.e. the way the CPU talks to the other stuff inside
1419 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1420 VESA. If you have PCI, say Y, otherwise N.
1421
Anton Vorontsov52882172010-04-19 13:20:49 +01001422config PCI_DOMAINS
1423 bool
1424 depends on PCI
1425
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001426config PCI_NANOENGINE
1427 bool "BSE nanoEngine PCI support"
1428 depends on SA1100_NANOENGINE
1429 help
1430 Enable PCI on the BSE nanoEngine board.
1431
Matthew Wilcox36e23592007-07-10 10:54:40 -06001432config PCI_SYSCALL
1433 def_bool PCI
1434
Linus Torvalds1da177e2005-04-16 15:20:36 -07001435# Select the host bridge type
1436config PCI_HOST_VIA82C505
1437 bool
1438 depends on PCI && ARCH_SHARK
1439 default y
1440
Mike Rapoporta0113a92007-11-25 08:55:34 +01001441config PCI_HOST_ITE8152
1442 bool
1443 depends on PCI && MACH_ARMCORE
1444 default y
1445 select DMABOUNCE
1446
Linus Torvalds1da177e2005-04-16 15:20:36 -07001447source "drivers/pci/Kconfig"
Jingoo Han3f06d152013-06-21 16:25:29 +09001448source "drivers/pci/pcie/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001449
1450source "drivers/pcmcia/Kconfig"
1451
1452endmenu
1453
1454menu "Kernel Features"
1455
Dave Martin3b556582011-12-07 15:38:04 +00001456config HAVE_SMP
1457 bool
1458 help
1459 This option should be selected by machines which have an SMP-
1460 capable CPU.
1461
1462 The only effect of this option is to make the SMP-related
1463 options available to the user for configuration.
1464
Linus Torvalds1da177e2005-04-16 15:20:36 -07001465config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001466 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001467 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001468 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001469 depends on HAVE_SMP
Jonathan Austin801bb212013-02-22 18:56:04 +00001470 depends on MMU || ARM_MPU
Russell Kingb1b3f492012-10-06 17:12:25 +01001471 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001472 help
1473 This enables support for systems with more than one CPU. If you have
1474 a system with only one CPU, like most personal computers, say N. If
1475 you have a system with more than one CPU, say Y.
1476
1477 If you say N here, the kernel will run on single and multiprocessor
1478 machines, but will use only one CPU of a multiprocessor machine. If
1479 you say Y here, the kernel will run on many, but not all, single
1480 processor machines. On a single processor machine, the kernel will
1481 run faster if you say N here.
1482
Paul Bolle395cf962011-08-15 02:02:26 +02001483 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001484 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001485 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001486
1487 If you don't know what to do here, say N.
1488
Russell Kingf00ec482010-09-04 10:47:48 +01001489config SMP_ON_UP
1490 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
Jonathan Austin801bb212013-02-22 18:56:04 +00001491 depends on SMP && !XIP_KERNEL && MMU
Russell Kingf00ec482010-09-04 10:47:48 +01001492 default y
1493 help
1494 SMP kernels contain instructions which fail on non-SMP processors.
1495 Enabling this option allows the kernel to modify itself to make
1496 these instructions safe. Disabling it allows about 1K of space
1497 savings.
1498
1499 If you don't know what to do here, say Y.
1500
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001501config ARM_CPU_TOPOLOGY
1502 bool "Support cpu topology definition"
1503 depends on SMP && CPU_V7
1504 default y
1505 help
1506 Support ARM cpu topology definition. The MPIDR register defines
1507 affinity between processors which is then used to describe the cpu
1508 topology of an ARM System.
1509
1510config SCHED_MC
1511 bool "Multi-core scheduler support"
1512 depends on ARM_CPU_TOPOLOGY
1513 help
1514 Multi-core scheduler support improves the CPU scheduler's decision
1515 making when dealing with multi-core CPU chips at a cost of slightly
1516 increased overhead in some places. If unsure say N here.
1517
1518config SCHED_SMT
1519 bool "SMT scheduler support"
1520 depends on ARM_CPU_TOPOLOGY
1521 help
1522 Improves the CPU scheduler's decision making when dealing with
1523 MultiThreading at a cost of slightly increased overhead in some
1524 places. If unsure say N here.
1525
Russell Kinga8cbcd92009-05-16 11:51:14 +01001526config HAVE_ARM_SCU
1527 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001528 help
1529 This option enables support for the ARM system coherency unit
1530
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001531config HAVE_ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001532 bool "Architected timer support"
1533 depends on CPU_V7
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001534 select ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001535 help
1536 This option enables support for the ARM architected timer
1537
Russell Kingf32f4ce2009-05-16 12:14:21 +01001538config HAVE_ARM_TWD
1539 bool
1540 depends on SMP
Rob Herringda4a6862013-02-06 21:17:47 -06001541 select CLKSRC_OF if OF
Russell Kingf32f4ce2009-05-16 12:14:21 +01001542 help
1543 This options enables support for the ARM timer and watchdog unit
1544
Nicolas Pitree8db2882012-04-12 02:45:22 -04001545config MCPM
1546 bool "Multi-Cluster Power Management"
1547 depends on CPU_V7 && SMP
1548 help
1549 This option provides the common power management infrastructure
1550 for (multi-)cluster based systems, such as big.LITTLE based
1551 systems.
1552
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001553choice
1554 prompt "Memory split"
1555 default VMSPLIT_3G
1556 help
1557 Select the desired split between kernel and user memory.
1558
1559 If you are not absolutely sure what you are doing, leave this
1560 option alone!
1561
1562 config VMSPLIT_3G
1563 bool "3G/1G user/kernel split"
1564 config VMSPLIT_2G
1565 bool "2G/2G user/kernel split"
1566 config VMSPLIT_1G
1567 bool "1G/3G user/kernel split"
1568endchoice
1569
1570config PAGE_OFFSET
1571 hex
1572 default 0x40000000 if VMSPLIT_1G
1573 default 0x80000000 if VMSPLIT_2G
1574 default 0xC0000000
1575
Linus Torvalds1da177e2005-04-16 15:20:36 -07001576config NR_CPUS
1577 int "Maximum number of CPUs (2-32)"
1578 range 2 32
1579 depends on SMP
1580 default "4"
1581
Russell Kinga054a812005-11-02 22:24:33 +00001582config HOTPLUG_CPU
Russell King00b7ded2012-10-22 22:54:30 +01001583 bool "Support for hot-pluggable CPUs"
Stephen Rothwell40b31362013-05-21 13:49:35 +10001584 depends on SMP
Russell Kinga054a812005-11-02 22:24:33 +00001585 help
1586 Say Y here to experiment with turning CPUs off and on. CPUs
1587 can be controlled through /sys/devices/system/cpu.
1588
Will Deacon2bdd4242012-12-12 19:20:52 +00001589config ARM_PSCI
1590 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1591 depends on CPU_V7
1592 help
1593 Say Y here if you want Linux to communicate with system firmware
1594 implementing the PSCI specification for CPU-centric power
1595 management operations described in ARM document number ARM DEN
1596 0022A ("Power State Coordination Interface System Software on
1597 ARM processors").
1598
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001599# The GPIO number here must be sorted by descending number. In case of
1600# a multiplatform kernel, we just want the highest value required by the
1601# selected platforms.
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001602config ARCH_NR_GPIO
1603 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001604 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
R Sricharan6d0fc192013-02-07 17:43:35 +05301605 default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || SOC_DRA7XX
Olof Johansson06b851e2013-04-02 18:33:58 -07001606 default 392 if ARCH_U8500
Tony Prisk01bb9142013-03-09 18:22:30 +13001607 default 352 if ARCH_VT8500
1608 default 288 if ARCH_SUNXI
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001609 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001610 default 0
1611 help
1612 Maximum number of GPIOs in the system.
1613
1614 If unsure, leave the default value.
1615
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001616source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001617
Russell Kingc9218b12013-04-27 23:31:10 +01001618config HZ_FIXED
Russell Kingf8065812006-03-02 22:41:59 +00001619 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001620 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001621 ARCH_S5PV210 || ARCH_EXYNOS4
David Brownell5248c652007-11-12 17:59:10 +01001622 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001623 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell King47d84682013-09-10 23:47:55 +01001624 default 0
Russell Kingc9218b12013-04-27 23:31:10 +01001625
1626choice
Russell King47d84682013-09-10 23:47:55 +01001627 depends on HZ_FIXED = 0
Russell Kingc9218b12013-04-27 23:31:10 +01001628 prompt "Timer frequency"
1629
1630config HZ_100
1631 bool "100 Hz"
1632
1633config HZ_200
1634 bool "200 Hz"
1635
1636config HZ_250
1637 bool "250 Hz"
1638
1639config HZ_300
1640 bool "300 Hz"
1641
1642config HZ_500
1643 bool "500 Hz"
1644
1645config HZ_1000
1646 bool "1000 Hz"
1647
1648endchoice
1649
1650config HZ
1651 int
Russell King47d84682013-09-10 23:47:55 +01001652 default HZ_FIXED if HZ_FIXED != 0
Russell Kingc9218b12013-04-27 23:31:10 +01001653 default 100 if HZ_100
1654 default 200 if HZ_200
1655 default 250 if HZ_250
1656 default 300 if HZ_300
1657 default 500 if HZ_500
1658 default 1000
1659
1660config SCHED_HRTICK
1661 def_bool HIGH_RES_TIMERS
Russell Kingf8065812006-03-02 22:41:59 +00001662
Russell Kingb28748f2013-02-17 14:40:33 +00001663config SCHED_HRTICK
1664 def_bool HIGH_RES_TIMERS
1665
Catalin Marinas16c79652009-07-24 12:33:02 +01001666config THUMB2_KERNEL
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001667 bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
Uwe Kleine-König4477ca42013-03-21 21:02:37 +01001668 depends on (CPU_V7 || CPU_V7M) && !CPU_V6 && !CPU_V6K
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001669 default y if CPU_THUMBONLY
Catalin Marinas16c79652009-07-24 12:33:02 +01001670 select AEABI
1671 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001672 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001673 help
1674 By enabling this option, the kernel will be compiled in
1675 Thumb-2 mode. A compiler/assembler that understand the unified
1676 ARM-Thumb syntax is needed.
1677
1678 If unsure, say N.
1679
Dave Martin6f685c52011-03-03 11:41:12 +01001680config THUMB2_AVOID_R_ARM_THM_JUMP11
1681 bool "Work around buggy Thumb-2 short branch relocations in gas"
1682 depends on THUMB2_KERNEL && MODULES
1683 default y
1684 help
1685 Various binutils versions can resolve Thumb-2 branches to
1686 locally-defined, preemptible global symbols as short-range "b.n"
1687 branch instructions.
1688
1689 This is a problem, because there's no guarantee the final
1690 destination of the symbol, or any candidate locations for a
1691 trampoline, are within range of the branch. For this reason, the
1692 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1693 relocation in modules at all, and it makes little sense to add
1694 support.
1695
1696 The symptom is that the kernel fails with an "unsupported
1697 relocation" error when loading some modules.
1698
1699 Until fixed tools are available, passing
1700 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1701 code which hits this problem, at the cost of a bit of extra runtime
1702 stack usage in some cases.
1703
1704 The problem is described in more detail at:
1705 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1706
1707 Only Thumb-2 kernels are affected.
1708
1709 Unless you are sure your tools don't have this problem, say Y.
1710
Catalin Marinas0becb082009-07-24 12:32:53 +01001711config ARM_ASM_UNIFIED
1712 bool
1713
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001714config AEABI
1715 bool "Use the ARM EABI to compile the kernel"
1716 help
1717 This option allows for the kernel to be compiled using the latest
1718 ARM ABI (aka EABI). This is only useful if you are using a user
1719 space environment that is also compiled with EABI.
1720
1721 Since there are major incompatibilities between the legacy ABI and
1722 EABI, especially with regard to structure member alignment, this
1723 option also changes the kernel syscall calling convention to
1724 disambiguate both ABIs and allow for backward compatibility support
1725 (selected with CONFIG_OABI_COMPAT).
1726
1727 To use this you need GCC version 4.0.0 or later.
1728
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001729config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001730 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001731 depends on AEABI && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001732 default y
1733 help
1734 This option preserves the old syscall interface along with the
1735 new (ARM EABI) one. It also provides a compatibility layer to
1736 intercept syscalls that have structure arguments which layout
1737 in memory differs between the legacy ABI and the new ARM EABI
1738 (only for non "thumb" binaries). This option adds a tiny
1739 overhead to all syscalls and produces a slightly larger kernel.
1740 If you know you'll be using only pure EABI user space then you
1741 can say N here. If this option is not selected and you attempt
1742 to execute a legacy ABI binary then the result will be
1743 UNPREDICTABLE (in fact it can be predicted that it won't work
1744 at all). If in doubt say Y.
1745
Mel Gormaneb335752009-05-13 17:34:48 +01001746config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001747 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001748
Russell King05944d72006-11-30 20:43:51 +00001749config ARCH_SPARSEMEM_ENABLE
1750 bool
1751
Russell King07a2f732008-10-01 21:39:58 +01001752config ARCH_SPARSEMEM_DEFAULT
1753 def_bool ARCH_SPARSEMEM_ENABLE
1754
Russell King05944d72006-11-30 20:43:51 +00001755config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001756 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001757
Will Deacon7b7bf492011-05-19 13:21:14 +01001758config HAVE_ARCH_PFN_VALID
1759 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1760
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001761config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001762 bool "High Memory Support"
1763 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001764 help
1765 The address space of ARM processors is only 4 Gigabytes large
1766 and it has to accommodate user address space, kernel address
1767 space as well as some memory mapped IO. That means that, if you
1768 have a large amount of physical memory and/or IO, not all of the
1769 memory can be "permanently mapped" by the kernel. The physical
1770 memory that is not permanently mapped is called "high memory".
1771
1772 Depending on the selected kernel/user memory split, minimum
1773 vmalloc space and actual amount of RAM, you may not need this
1774 option which should result in a slightly faster kernel.
1775
1776 If unsure, say n.
1777
Russell King65cec8e2009-08-17 20:02:06 +01001778config HIGHPTE
1779 bool "Allocate 2nd-level pagetables from highmem"
1780 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001781
Jamie Iles1b8873a2010-02-02 20:25:44 +01001782config HW_PERF_EVENTS
1783 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001784 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001785 default y
1786 help
1787 Enable hardware performance counter support for perf events. If
1788 disabled, perf events will use software events only.
1789
Catalin Marinas1355e2a2012-07-25 14:32:38 +01001790config SYS_SUPPORTS_HUGETLBFS
1791 def_bool y
1792 depends on ARM_LPAE
1793
Catalin Marinas8d962502012-07-25 14:39:26 +01001794config HAVE_ARCH_TRANSPARENT_HUGEPAGE
1795 def_bool y
1796 depends on ARM_LPAE
1797
Steven Capper4bfab202013-07-26 14:58:22 +01001798config ARCH_WANT_GENERAL_HUGETLB
1799 def_bool y
1800
Dave Hansen3f22ab22005-06-23 00:07:43 -07001801source "mm/Kconfig"
1802
Magnus Dammc1b2d972010-07-05 10:00:11 +01001803config FORCE_MAX_ZONEORDER
1804 int "Maximum zone order" if ARCH_SHMOBILE
1805 range 11 64 if ARCH_SHMOBILE
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001806 default "12" if SOC_AM33XX
Magnus Dammc1b2d972010-07-05 10:00:11 +01001807 default "9" if SA1111
1808 default "11"
1809 help
1810 The kernel memory allocator divides physically contiguous memory
1811 blocks into "zones", where each zone is a power of two number of
1812 pages. This option selects the largest power of two that the kernel
1813 keeps in the memory allocator. If you need to allocate very large
1814 blocks of physically contiguous memory, then you may need to
1815 increase this value.
1816
1817 This config option is actually maximum order plus one. For example,
1818 a value of 11 means that the largest free memory block is 2^10 pages.
1819
Linus Torvalds1da177e2005-04-16 15:20:36 -07001820config ALIGNMENT_TRAP
1821 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001822 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001823 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001824 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001825 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001826 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001827 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1828 address divisible by 4. On 32-bit ARM processors, these non-aligned
1829 fetch/store instructions will be emulated in software if you say
1830 here, which has a severe performance impact. This is necessary for
1831 correct operation of some network protocols. With an IP-only
1832 configuration it is safe to say N, otherwise say Y.
1833
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001834config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001835 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1836 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001837 default y if CPU_FEROCEON
1838 help
1839 Implement faster copy_to_user and clear_user methods for CPU
1840 cores where a 8-word STM instruction give significantly higher
1841 memory write throughput than a sequence of individual 32bit stores.
1842
1843 A possible side effect is a slight increase in scheduling latency
1844 between threads sharing the same address space if they invoke
1845 such copy operations with large buffers.
1846
1847 However, if the CPU data cache is using a write-allocate mode,
1848 this option is unlikely to provide any performance gain.
1849
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001850config SECCOMP
1851 bool
1852 prompt "Enable seccomp to safely compute untrusted bytecode"
1853 ---help---
1854 This kernel feature is useful for number crunching applications
1855 that may need to compute untrusted bytecode during their
1856 execution. By using pipes or other transports made available to
1857 the process as file descriptors supporting the read/write
1858 syscalls, it's possible to isolate those applications in
1859 their own address space using seccomp. Once seccomp is
1860 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1861 and the task is only allowed to execute a few safe syscalls
1862 defined by each seccomp mode.
1863
Nicolas Pitrec743f382010-05-24 23:55:42 -04001864config CC_STACKPROTECTOR
1865 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1866 help
1867 This option turns on the -fstack-protector GCC feature. This
1868 feature puts, at the beginning of functions, a canary value on
1869 the stack just before the return address, and validates
1870 the value just before actually returning. Stack based buffer
1871 overflows (that need to overwrite this return address) now also
1872 overwrite the canary, which gets detected and the attack is then
1873 neutralized via a kernel panic.
1874 This feature requires gcc version 4.2 or above.
1875
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001876config XEN_DOM0
1877 def_bool y
1878 depends on XEN
1879
1880config XEN
1881 bool "Xen guest support on ARM (EXPERIMENTAL)"
Ian Campbell85323a92013-03-07 07:17:25 +00001882 depends on ARM && AEABI && OF
Arnd Bergmannf880b672012-10-09 10:33:52 +00001883 depends on CPU_V7 && !CPU_V6
Ian Campbell85323a92013-03-07 07:17:25 +00001884 depends on !GENERIC_ATOMIC64
Stefano Stabellini17b7ab82013-04-24 18:47:18 +00001885 select ARM_PSCI
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001886 help
1887 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1888
Linus Torvalds1da177e2005-04-16 15:20:36 -07001889endmenu
1890
1891menu "Boot options"
1892
Grant Likely9eb8f672011-04-28 14:27:20 -06001893config USE_OF
1894 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001895 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001896 select OF
1897 select OF_EARLY_FLATTREE
1898 help
1899 Include support for flattened device tree machine descriptions.
1900
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001901config ATAGS
1902 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1903 default y
1904 help
1905 This is the traditional way of passing data to the kernel at boot
1906 time. If you are solely relying on the flattened device tree (or
1907 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1908 to remove ATAGS support from your kernel binary. If unsure,
1909 leave this to y.
1910
1911config DEPRECATED_PARAM_STRUCT
1912 bool "Provide old way to pass kernel parameters"
1913 depends on ATAGS
1914 help
1915 This was deprecated in 2001 and announced to live on for 5 years.
1916 Some old boot loaders still use this way.
1917
Linus Torvalds1da177e2005-04-16 15:20:36 -07001918# Compressed boot loader in ROM. Yes, we really want to ask about
1919# TEXT and BSS so we preserve their values in the config files.
1920config ZBOOT_ROM_TEXT
1921 hex "Compressed ROM boot loader base address"
1922 default "0"
1923 help
1924 The physical address at which the ROM-able zImage is to be
1925 placed in the target. Platforms which normally make use of
1926 ROM-able zImage formats normally set this to a suitable
1927 value in their defconfig file.
1928
1929 If ZBOOT_ROM is not enabled, this has no effect.
1930
1931config ZBOOT_ROM_BSS
1932 hex "Compressed ROM boot loader BSS address"
1933 default "0"
1934 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001935 The base address of an area of read/write memory in the target
1936 for the ROM-able zImage which must be available while the
1937 decompressor is running. It must be large enough to hold the
1938 entire decompressed kernel plus an additional 128 KiB.
1939 Platforms which normally make use of ROM-able zImage formats
1940 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001941
1942 If ZBOOT_ROM is not enabled, this has no effect.
1943
1944config ZBOOT_ROM
1945 bool "Compressed boot loader in ROM/flash"
1946 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1947 help
1948 Say Y here if you intend to execute your compressed kernel image
1949 (zImage) directly from ROM or flash. If unsure, say N.
1950
Simon Horman090ab3f2011-04-26 06:29:53 +01001951choice
1952 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001953 depends on ZBOOT_ROM && ARCH_SH7372
Simon Horman090ab3f2011-04-26 06:29:53 +01001954 default ZBOOT_ROM_NONE
1955 help
1956 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001957 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001958 kernel image to an MMC or SD card and boot the kernel straight
1959 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001960 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001961 rest the kernel image to RAM.
1962
1963config ZBOOT_ROM_NONE
1964 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1965 help
1966 Do not load image from SD or MMC
1967
Simon Hormanf45b1142011-01-11 04:01:08 +01001968config ZBOOT_ROM_MMCIF
1969 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001970 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001971 Load image from MMCIF hardware block.
1972
1973config ZBOOT_ROM_SH_MOBILE_SDHI
1974 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1975 help
1976 Load image from SDHI hardware block
1977
1978endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001979
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001980config ARM_APPENDED_DTB
1981 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001982 depends on OF && !ZBOOT_ROM
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001983 help
1984 With this option, the boot code will look for a device tree binary
1985 (DTB) appended to zImage
1986 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1987
1988 This is meant as a backward compatibility convenience for those
1989 systems with a bootloader that can't be upgraded to accommodate
1990 the documented boot protocol using a device tree.
1991
1992 Beware that there is very little in terms of protection against
1993 this option being confused by leftover garbage in memory that might
1994 look like a DTB header after a reboot if no actual DTB is appended
1995 to zImage. Do not leave this option active in a production kernel
1996 if you don't intend to always append a DTB. Proper passing of the
1997 location into r2 of a bootloader provided DTB is always preferable
1998 to this option.
1999
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04002000config ARM_ATAG_DTB_COMPAT
2001 bool "Supplement the appended DTB with traditional ATAG information"
2002 depends on ARM_APPENDED_DTB
2003 help
2004 Some old bootloaders can't be updated to a DTB capable one, yet
2005 they provide ATAGs with memory configuration, the ramdisk address,
2006 the kernel cmdline string, etc. Such information is dynamically
2007 provided by the bootloader and can't always be stored in a static
2008 DTB. To allow a device tree enabled kernel to be used with such
2009 bootloaders, this option allows zImage to extract the information
2010 from the ATAG list and store it at run time into the appended DTB.
2011
Genoud Richardd0f34a12012-06-26 16:37:59 +01002012choice
2013 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
2014 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
2015
2016config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
2017 bool "Use bootloader kernel arguments if available"
2018 help
2019 Uses the command-line options passed by the boot loader instead of
2020 the device tree bootargs property. If the boot loader doesn't provide
2021 any, the device tree bootargs property will be used.
2022
2023config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
2024 bool "Extend with bootloader kernel arguments"
2025 help
2026 The command-line arguments provided by the boot loader will be
2027 appended to the the device tree bootargs property.
2028
2029endchoice
2030
Linus Torvalds1da177e2005-04-16 15:20:36 -07002031config CMDLINE
2032 string "Default kernel command string"
2033 default ""
2034 help
2035 On some architectures (EBSA110 and CATS), there is currently no way
2036 for the boot loader to pass arguments to the kernel. For these
2037 architectures, you should supply some command-line options at build
2038 time by entering them here. As a minimum, you should specify the
2039 memory size and the root device (e.g., mem=64M root=/dev/nfs).
2040
Victor Boivie4394c122011-05-04 17:07:55 +01002041choice
2042 prompt "Kernel command line type" if CMDLINE != ""
2043 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002044 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01002045
2046config CMDLINE_FROM_BOOTLOADER
2047 bool "Use bootloader kernel arguments if available"
2048 help
2049 Uses the command-line options passed by the boot loader. If
2050 the boot loader doesn't provide any, the default kernel command
2051 string provided in CMDLINE will be used.
2052
2053config CMDLINE_EXTEND
2054 bool "Extend bootloader kernel arguments"
2055 help
2056 The command-line arguments provided by the boot loader will be
2057 appended to the default kernel command string.
2058
Alexander Holler92d20402010-02-16 19:04:53 +01002059config CMDLINE_FORCE
2060 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01002061 help
2062 Always use the default kernel command string, even if the boot
2063 loader passes other arguments to the kernel.
2064 This is useful if you cannot or don't want to change the
2065 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01002066endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002067
Linus Torvalds1da177e2005-04-16 15:20:36 -07002068config XIP_KERNEL
2069 bool "Kernel Execute-In-Place from ROM"
Rob Herring387798b2012-09-06 13:41:12 -05002070 depends on !ZBOOT_ROM && !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07002071 help
2072 Execute-In-Place allows the kernel to run from non-volatile storage
2073 directly addressable by the CPU, such as NOR flash. This saves RAM
2074 space since the text section of the kernel is not loaded from flash
2075 to RAM. Read-write sections, such as the data section and stack,
2076 are still copied to RAM. The XIP kernel is not compressed since
2077 it has to run directly from flash, so it will take more space to
2078 store it. The flash address used to link the kernel object files,
2079 and for storing it, is configuration dependent. Therefore, if you
2080 say Y here, you must know the proper physical address where to
2081 store the kernel image depending on your own flash memory usage.
2082
2083 Also note that the make target becomes "make xipImage" rather than
2084 "make zImage" or "make Image". The final kernel binary to put in
2085 ROM memory will be arch/arm/boot/xipImage.
2086
2087 If unsure, say N.
2088
2089config XIP_PHYS_ADDR
2090 hex "XIP Kernel Physical Location"
2091 depends on XIP_KERNEL
2092 default "0x00080000"
2093 help
2094 This is the physical address in your flash memory the kernel will
2095 be linked for and stored to. This address is dependent on your
2096 own flash usage.
2097
Richard Purdiec587e4a2007-02-06 21:29:00 +01002098config KEXEC
2099 bool "Kexec system call (EXPERIMENTAL)"
Stephen Warren19ab4282013-06-14 16:14:14 +01002100 depends on (!SMP || PM_SLEEP_SMP)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002101 help
2102 kexec is a system call that implements the ability to shutdown your
2103 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002104 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002105 you can start any kernel with it, not just Linux.
2106
2107 It is an ongoing process to be certain the hardware in a machine
2108 is properly shutdown, so do not be surprised if this code does not
Geert Uytterhoevenbf220692013-08-20 21:38:03 +02002109 initially work for you.
Richard Purdiec587e4a2007-02-06 21:29:00 +01002110
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002111config ATAGS_PROC
2112 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002113 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01002114 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002115 help
2116 Should the atags used to boot the kernel be exported in an "atags"
2117 file in procfs. Useful with kexec.
2118
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002119config CRASH_DUMP
2120 bool "Build kdump crash kernel (EXPERIMENTAL)"
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002121 help
2122 Generate crash dump after being started by kexec. This should
2123 be normally only set in special crash dump kernels which are
2124 loaded in the main kernel with kexec-tools into a specially
2125 reserved region and then later executed after a crash by
2126 kdump/kexec. The crash dump kernel must be compiled to a
2127 memory address not used by the main kernel
2128
2129 For more details see Documentation/kdump/kdump.txt
2130
Eric Miaoe69edc792010-07-05 15:56:50 +02002131config AUTO_ZRELADDR
2132 bool "Auto calculation of the decompressed kernel image address"
Linus Walleije1b31442013-05-02 18:01:46 +02002133 depends on !ZBOOT_ROM
Eric Miaoe69edc792010-07-05 15:56:50 +02002134 help
2135 ZRELADDR is the physical address where the decompressed kernel
2136 image will be placed. If AUTO_ZRELADDR is selected, the address
2137 will be determined at run-time by masking the current IP with
2138 0xf8000000. This assumes the zImage being placed in the first 128MB
2139 from start of memory.
2140
Linus Torvalds1da177e2005-04-16 15:20:36 -07002141endmenu
2142
Russell Kingac9d7ef2008-08-18 17:26:00 +01002143menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002144
Ben Dooks89c52ed2009-07-30 23:23:24 +01002145if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002146source "drivers/cpufreq/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002147endif
2148
Russell Kingac9d7ef2008-08-18 17:26:00 +01002149source "drivers/cpuidle/Kconfig"
2150
2151endmenu
2152
Linus Torvalds1da177e2005-04-16 15:20:36 -07002153menu "Floating point emulation"
2154
2155comment "At least one emulation must be selected"
2156
2157config FPE_NWFPE
2158 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002159 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002160 ---help---
2161 Say Y to include the NWFPE floating point emulator in the kernel.
2162 This is necessary to run most binaries. Linux does not currently
2163 support floating point hardware so you need to say Y here even if
2164 your machine has an FPA or floating point co-processor podule.
2165
2166 You may say N here if you are going to load the Acorn FPEmulator
2167 early in the bootup.
2168
2169config FPE_NWFPE_XP
2170 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002171 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002172 help
2173 Say Y to include 80-bit support in the kernel floating-point
2174 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2175 Note that gcc does not generate 80-bit operations by default,
2176 so in most cases this option only enlarges the size of the
2177 floating point emulator without any good reason.
2178
2179 You almost surely want to say N here.
2180
2181config FPE_FASTFPE
2182 bool "FastFPE math emulation (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002183 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
Linus Torvalds1da177e2005-04-16 15:20:36 -07002184 ---help---
2185 Say Y here to include the FAST floating point emulator in the kernel.
2186 This is an experimental much faster emulator which now also has full
2187 precision for the mantissa. It does not support any exceptions.
2188 It is very simple, and approximately 3-6 times faster than NWFPE.
2189
2190 It should be sufficient for most programs. It may be not suitable
2191 for scientific calculations, but you have to check this for yourself.
2192 If you do not feel you need a faster FP emulation you should better
2193 choose NWFPE.
2194
2195config VFP
2196 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002197 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002198 help
2199 Say Y to include VFP support code in the kernel. This is needed
2200 if your hardware includes a VFP unit.
2201
2202 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2203 release notes and additional status information.
2204
2205 Say N if your target does not have VFP hardware.
2206
Catalin Marinas25ebee02007-09-25 15:22:24 +01002207config VFPv3
2208 bool
2209 depends on VFP
2210 default y if CPU_V7
2211
Catalin Marinasb5872db2008-01-10 19:16:17 +01002212config NEON
2213 bool "Advanced SIMD (NEON) Extension support"
2214 depends on VFPv3 && CPU_V7
2215 help
2216 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2217 Extension.
2218
Ard Biesheuvel73c132c2013-05-16 11:41:48 +02002219config KERNEL_MODE_NEON
2220 bool "Support for NEON in kernel mode"
2221 default n
2222 depends on NEON
2223 help
2224 Say Y to include support for NEON in kernel mode.
2225
Linus Torvalds1da177e2005-04-16 15:20:36 -07002226endmenu
2227
2228menu "Userspace binary formats"
2229
2230source "fs/Kconfig.binfmt"
2231
2232config ARTHUR
2233 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00002234 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002235 help
2236 Say Y here to include the kernel code necessary if you want to run
2237 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2238 experimental; if this sounds frightening, say N and sleep in peace.
2239 You can also say M here to compile this support as a module (which
2240 will be called arthur).
2241
2242endmenu
2243
2244menu "Power management options"
2245
Russell Kingeceab4a2005-11-15 11:31:41 +00002246source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002247
Johannes Bergf4cb5702007-12-08 02:14:00 +01002248config ARCH_SUSPEND_POSSIBLE
Stephen Warren4b1082c2012-09-05 09:58:27 -06002249 depends on !ARCH_S5PC100
Ezequiel Garcia19a05192013-08-16 10:28:24 +01002250 depends on CPU_ARM920T || CPU_ARM926T || CPU_FEROCEON || CPU_SA1100 || \
Chao Xie3f5d0812012-05-07 11:23:58 +08002251 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002252 def_bool y
2253
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002254config ARM_CPU_SUSPEND
2255 def_bool PM_SLEEP
2256
Linus Torvalds1da177e2005-04-16 15:20:36 -07002257endmenu
2258
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002259source "net/Kconfig"
2260
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002261source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002262
2263source "fs/Kconfig"
2264
Linus Torvalds1da177e2005-04-16 15:20:36 -07002265source "arch/arm/Kconfig.debug"
2266
2267source "security/Kconfig"
2268
2269source "crypto/Kconfig"
2270
2271source "lib/Kconfig"
Christoffer Dall749cf76c2013-01-20 18:28:06 -05002272
2273source "arch/arm/kvm/Kconfig"