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Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
Mark Brown7563bbf2012-04-15 10:52:54 +01004 select ARCH_HAVE_CUSTOM_GPIO_H
David Woodhousee17c6d52008-06-17 12:19:34 +01005 select HAVE_AOUT
Russell King24056f52011-01-03 11:29:28 +00006 select HAVE_DMA_API_DEBUG
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +02007 select HAVE_IDE if PCI || ISA || PCMCIA
Marek Szyprowski2dc6a012012-02-10 19:55:20 +01008 select HAVE_DMA_ATTRS
Marek Szyprowskic7909502011-12-29 13:09:51 +01009 select HAVE_DMA_CONTIGUOUS if (CPU_V6 || CPU_V6K || CPU_V7)
Russell King2778f622010-07-09 16:27:52 +010010 select HAVE_MEMBLOCK
Alessandro Zummo12b824f2006-03-27 01:16:35 -080011 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +000012 select SYS_SUPPORTS_APM_EMULATION
Russell Kinga41297a2011-01-17 15:48:33 +000013 select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI)
Will Deaconfe166142010-04-30 11:37:51 +010014 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Rabin Vincent09f05d82012-02-18 17:52:41 +010015 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
Jason Wessel5cbad0e2008-02-20 13:33:40 -060016 select HAVE_ARCH_KGDB
Wade Farnsworth0693bf62012-04-04 16:19:47 +010017 select HAVE_ARCH_TRACEHOOK
Jon Medhurst856bc352011-06-14 13:09:39 +010018 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080019 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040020 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Rabin Vincent80be7a72010-08-10 19:58:17 +010021 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
22 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Rabin Vincent0e341af2010-11-06 23:03:53 +053023 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
David Daneye39f5602012-01-10 15:10:21 -080024 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040025 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080026 select HAVE_KERNEL_GZIP
27 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010028 select HAVE_KERNEL_LZMA
Imre Kaloza7f464f2012-01-26 13:08:57 +010029 select HAVE_KERNEL_XZ
Peter Zijlstrae360adb2010-10-14 14:01:34 +080030 select HAVE_IRQ_WORK
Jamie Iles7ada1892010-02-02 20:24:58 +010031 select HAVE_PERF_EVENTS
32 select PERF_USE_VMALLOC
Will Deacone513f8b2010-06-25 12:24:53 +010033 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kinge399b1a2011-01-17 15:08:32 +000034 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
Rabin Vincented604532010-11-30 17:36:48 +010035 select HAVE_C_RECORDMCOUNT
Lennert Buytenheke2a93ec2010-11-29 10:06:57 +010036 select HAVE_GENERIC_HARDIRQS
Stephen Boyd37e74be2012-04-16 22:53:44 +010037 select HARDIRQS_SW_RESEND
38 select GENERIC_IRQ_PROBE
Thomas Gleixner25a56622011-03-24 12:02:11 +010039 select GENERIC_IRQ_SHOW
Thomas Gleixnerd4aa8b12012-05-21 11:06:17 +020040 select GENERIC_IRQ_PROBE
41 select HARDIRQS_SW_RESEND
Santosh Shilimkar1fb902632011-09-10 11:30:28 +053042 select CPU_PM if (SUSPEND || CPU_IDLE)
Michael S. Tsirkine5bfb722011-11-24 20:57:23 +020043 select GENERIC_PCI_IOMAP
Sam Ravnborge47b65b2012-05-21 20:45:37 +020044 select HAVE_BPF_JIT
Thomas Gleixner84ec6d52012-04-20 13:05:50 +000045 select GENERIC_SMP_IDLE_THREAD
Anna-Maria Gleixner3d92a712012-05-18 16:45:44 +000046 select KTIME_SCALAR
47 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
Linus Torvalds1da177e2005-04-16 15:20:36 -070048 help
49 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000050 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070051 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000052 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070053 Europe. There is an ARM Linux project with a web page at
54 <http://www.arm.linux.org.uk/>.
55
Russell King74facff2011-06-02 11:16:22 +010056config ARM_HAS_SG_CHAIN
57 bool
58
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020059config NEED_SG_DMA_LENGTH
60 bool
61
62config ARM_DMA_USE_IOMMU
63 select NEED_SG_DMA_LENGTH
64 select ARM_HAS_SG_CHAIN
65 bool
66
Russell King1a189b92008-04-13 21:41:55 +010067config HAVE_PWM
68 bool
69
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010070config MIGHT_HAVE_PCI
71 bool
72
Ralf Baechle75e71532007-02-09 17:08:58 +000073config SYS_SUPPORTS_APM_EMULATION
74 bool
75
David Brownell0a938b92007-03-05 00:30:18 -080076config GENERIC_GPIO
77 bool
David Brownell0a938b92007-03-05 00:30:18 -080078
Linus Walleijbc581772009-09-15 17:30:37 +010079config HAVE_TCM
80 bool
81 select GENERIC_ALLOCATOR
82
Russell Kinge119bff2010-01-10 17:23:29 +000083config HAVE_PROC_CPU
84 bool
85
Al Viro5ea81762007-02-11 15:41:31 +000086config NO_IOPORT
87 bool
Al Viro5ea81762007-02-11 15:41:31 +000088
Linus Torvalds1da177e2005-04-16 15:20:36 -070089config EISA
90 bool
91 ---help---
92 The Extended Industry Standard Architecture (EISA) bus was
93 developed as an open alternative to the IBM MicroChannel bus.
94
95 The EISA bus provided some of the features of the IBM MicroChannel
96 bus while maintaining backward compatibility with cards made for
97 the older ISA bus. The EISA bus saw limited use between 1988 and
98 1995 when it was made obsolete by the PCI bus.
99
100 Say Y here if you are building a kernel for an EISA-based machine.
101
102 Otherwise, say N.
103
104config SBUS
105 bool
106
Russell Kingf16fb1e2007-04-28 09:59:37 +0100107config STACKTRACE_SUPPORT
108 bool
109 default y
110
Nicolas Pitref76e9152008-04-24 01:31:46 -0400111config HAVE_LATENCYTOP_SUPPORT
112 bool
113 depends on !SMP
114 default y
115
Russell Kingf16fb1e2007-04-28 09:59:37 +0100116config LOCKDEP_SUPPORT
117 bool
118 default y
119
Russell King7ad1bcb2006-08-27 12:07:02 +0100120config TRACE_IRQFLAGS_SUPPORT
121 bool
122 default y
123
Nick Piggin95c354f2008-01-30 13:31:20 +0100124config GENERIC_LOCKBREAK
125 bool
126 default y
127 depends on SMP && PREEMPT
128
Linus Torvalds1da177e2005-04-16 15:20:36 -0700129config RWSEM_GENERIC_SPINLOCK
130 bool
131 default y
132
133config RWSEM_XCHGADD_ALGORITHM
134 bool
135
David Howellsf0d1b0b2006-12-08 02:37:49 -0800136config ARCH_HAS_ILOG2_U32
137 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800138
139config ARCH_HAS_ILOG2_U64
140 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800141
Ben Dooks89c52ed2009-07-30 23:23:24 +0100142config ARCH_HAS_CPUFREQ
143 bool
144 help
145 Internal node to signify that the ARCH has CPUFREQ support
146 and that the relevant menu configurations are displayed for
147 it.
148
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800149config GENERIC_HWEIGHT
150 bool
151 default y
152
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153config GENERIC_CALIBRATE_DELAY
154 bool
155 default y
156
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100157config ARCH_MAY_HAVE_PC_FDC
158 bool
159
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800160config ZONE_DMA
161 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800162
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800163config NEED_DMA_MAP_STATE
164 def_bool y
165
Rob Herring58af4a22012-03-20 14:33:01 -0500166config ARCH_HAS_DMA_SET_COHERENT_MASK
167 bool
168
Linus Torvalds1da177e2005-04-16 15:20:36 -0700169config GENERIC_ISA_DMA
170 bool
171
Linus Torvalds1da177e2005-04-16 15:20:36 -0700172config FIQ
173 bool
174
Rob Herring13a50452012-02-07 09:28:22 -0600175config NEED_RET_TO_USER
176 bool
177
Al Viro034d2f52005-12-19 16:27:59 -0500178config ARCH_MTD_XIP
179 bool
180
Hyok S. Choic760fc12006-03-27 15:18:50 +0100181config VECTORS_BASE
182 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900183 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100184 default DRAM_BASE if REMAP_VECTORS_TO_RAM
185 default 0x00000000
186 help
187 The base address of exception vectors.
188
Russell Kingdc21af92011-01-04 19:09:43 +0000189config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100190 bool "Patch physical to virtual translations at runtime" if EMBEDDED
191 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100192 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000193 depends on !ARCH_REALVIEW || !SPARSEMEM
194 help
Russell King111e9a52011-05-12 10:02:42 +0100195 Patch phys-to-virt and virt-to-phys translation functions at
196 boot and module load time according to the position of the
197 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000198
Russell King111e9a52011-05-12 10:02:42 +0100199 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100200 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000201
Russell Kingc1beced2011-08-10 10:23:45 +0100202 Only disable this option if you know that you do not require
203 this feature (eg, building a kernel for a single machine) and
204 you need to shrink the kernel to the minimal size.
205
Rob Herringc334bc12012-03-04 22:03:33 -0600206config NEED_MACH_IO_H
207 bool
208 help
209 Select this when mach/io.h is required to provide special
210 definitions for this platform. The need for mach/io.h should
211 be avoided when possible.
212
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400213config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400214 bool
Russell King111e9a52011-05-12 10:02:42 +0100215 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400216 Select this when mach/memory.h is required to provide special
217 definitions for this platform. The need for mach/memory.h should
218 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400219
220config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100221 hex "Physical address of main memory" if MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400222 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre974c0722011-12-02 23:09:42 +0100223 default DRAM_BASE if !MMU
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400224 help
225 Please provide the physical address corresponding to the
226 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000227
Simon Glass87e040b2011-08-16 23:44:26 +0100228config GENERIC_BUG
229 def_bool y
230 depends on BUG
231
Linus Torvalds1da177e2005-04-16 15:20:36 -0700232source "init/Kconfig"
233
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700234source "kernel/Kconfig.freezer"
235
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236menu "System Type"
237
Hyok S. Choi3c427972009-07-24 12:35:00 +0100238config MMU
239 bool "MMU-based Paged Memory Management Support"
240 default y
241 help
242 Select if you want MMU-based virtualised addressing space
243 support by paged memory management. If unsure, say 'Y'.
244
Russell Kingccf50e22010-03-15 19:03:06 +0000245#
246# The "ARM system type" choice list is ordered alphabetically by option
247# text. Please add new entries in the option alphabetic order.
248#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700249choice
250 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000251 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700252
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100253config ARCH_INTEGRATOR
254 bool "ARM Ltd. Integrator family"
255 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100256 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100257 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900258 select HAVE_MACH_CLKDEV
Linus Walleij9904f792011-12-09 10:29:23 +0100259 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000260 select ICST
Russell King13edd862010-01-15 21:49:23 +0000261 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000262 select PLAT_VERSATILE
Russell Kingc41b16f2011-01-19 15:32:15 +0000263 select PLAT_VERSATILE_FPGA_IRQ
Rob Herringc334bc12012-03-04 22:03:33 -0600264 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400265 select NEED_MACH_MEMORY_H
Linus Walleij695436e2012-02-26 10:46:48 +0100266 select SPARSE_IRQ
Linus Walleij3108e6a2012-04-28 14:33:47 +0100267 select MULTI_IRQ_HANDLER
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100268 help
269 Support for ARM's Integrator platform.
270
271config ARCH_REALVIEW
272 bool "ARM Ltd. RealView family"
273 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100274 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900275 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000276 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100277 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100278 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000279 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000280 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000281 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100282 select GPIO_PL061 if GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400283 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100284 help
285 This enables support for ARM Ltd RealView boards.
286
287config ARCH_VERSATILE
288 bool "ARM Ltd. Versatile family"
289 select ARM_AMBA
290 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100291 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900292 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000293 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100294 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100295 select ARCH_WANT_OPTIONAL_GPIOLIB
Arnd Bergmann9b0f7e32012-06-11 09:03:58 -0500296 select NEED_MACH_IO_H if PCI
Russell Kingf4b8b312010-01-14 12:48:06 +0000297 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000298 select PLAT_VERSATILE_CLCD
Russell Kingc41b16f2011-01-19 15:32:15 +0000299 select PLAT_VERSATILE_FPGA_IRQ
Russell Kinge3887712010-01-14 13:30:16 +0000300 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100301 help
302 This enables support for ARM Ltd Versatile board.
303
Russell Kingceade892010-02-11 21:44:53 +0000304config ARCH_VEXPRESS
305 bool "ARM Ltd. Versatile Express family"
306 select ARCH_WANT_OPTIONAL_GPIOLIB
307 select ARM_AMBA
308 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100309 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900310 select HAVE_MACH_CLKDEV
Russell Kingceade892010-02-11 21:44:53 +0000311 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000312 select HAVE_CLK
Nick Bowler95c34f82011-01-21 15:51:06 +0100313 select HAVE_PATA_PLATFORM
Russell Kingceade892010-02-11 21:44:53 +0000314 select ICST
Russell Kingba81f502012-02-15 11:55:22 +0000315 select NO_IOPORT
Russell Kingceade892010-02-11 21:44:53 +0000316 select PLAT_VERSATILE
Russell King0fb44b92011-01-18 20:13:51 +0000317 select PLAT_VERSATILE_CLCD
Russell Kingceade892010-02-11 21:44:53 +0000318 help
319 This enables support for the ARM Ltd Versatile Express boards.
320
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100321config ARCH_AT91
322 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100323 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700324 select HAVE_CLK
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100325 select CLKDEV_LOOKUP
Nicolas Ferree2615012011-11-22 22:26:09 +0100326 select IRQ_DOMAIN
Rob Herring1ac02d72012-04-04 17:48:04 -0500327 select NEED_MACH_IO_H if PCCARD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100328 help
Nicolas Ferre929e9942012-03-15 12:21:12 +0100329 This enables support for systems based on Atmel
330 AT91RM9200 and AT91SAM9* processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100331
Russell Kingccf50e22010-03-15 19:03:06 +0000332config ARCH_BCMRING
333 bool "Broadcom BCMRING"
334 depends on MMU
335 select CPU_V6
336 select ARM_AMBA
Russell King82d63732011-05-12 13:43:39 +0100337 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100338 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000339 select GENERIC_CLOCKEVENTS
340 select ARCH_WANT_OPTIONAL_GPIOLIB
341 help
342 Support for Broadcom's BCMRing platform.
343
Rob Herring220e6cf2011-06-07 10:02:55 -0500344config ARCH_HIGHBANK
345 bool "Calxeda Highbank-based"
346 select ARCH_WANT_OPTIONAL_GPIOLIB
347 select ARM_AMBA
348 select ARM_GIC
349 select ARM_TIMER_SP804
Dave Martin22d80372011-12-12 16:17:34 +0000350 select CACHE_L2X0
Rob Herring220e6cf2011-06-07 10:02:55 -0500351 select CLKDEV_LOOKUP
352 select CPU_V7
353 select GENERIC_CLOCKEVENTS
354 select HAVE_ARM_SCU
Dave Martin3b556582011-12-07 15:38:04 +0000355 select HAVE_SMP
Rob Herringfdfa64a2012-01-03 14:44:31 -0600356 select SPARSE_IRQ
Rob Herring220e6cf2011-06-07 10:02:55 -0500357 select USE_OF
358 help
359 Support for the Calxeda Highbank SoC based boards.
360
Linus Torvalds1da177e2005-04-16 15:20:36 -0700361config ARCH_CLPS711X
Alexander Shiyan0e2fce52012-05-14 21:46:10 +0400362 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000363 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000364 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400365 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000366 help
Alexander Shiyan0e2fce52012-05-14 21:46:10 +0400367 Support for Cirrus Logic 711x/721x/731x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700368
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300369config ARCH_CNS3XXX
370 bool "Cavium Networks CNS3XXX family"
Imre Kaloz00d27112011-07-07 12:19:09 +0200371 select CPU_V6K
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300372 select GENERIC_CLOCKEVENTS
373 select ARM_GIC
Dave Martince5ea9f2011-11-29 15:56:19 +0000374 select MIGHT_HAVE_CACHE_L2X0
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100375 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400376 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300377 help
378 Support for Cavium Networks CNS3XXX platform.
379
Russell King788c9702009-04-26 14:21:59 +0100380config ARCH_GEMINI
381 bool "Cortina Systems Gemini"
382 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100383 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000384 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100385 help
386 Support for the Cortina Systems Gemini family SoCs
387
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200388config ARCH_PRIMA2
389 bool "CSR SiRFSoC PRIMA2 ARM Cortex A9 Platform"
390 select CPU_V7
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200391 select NO_IOPORT
392 select GENERIC_CLOCKEVENTS
393 select CLKDEV_LOOKUP
394 select GENERIC_IRQ_CHIP
Dave Martince5ea9f2011-11-29 15:56:19 +0000395 select MIGHT_HAVE_CACHE_L2X0
Barry Songcbd8d842012-05-15 10:35:46 +0800396 select PINCTRL
397 select PINCTRL_SIRF
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200398 select USE_OF
399 select ZONE_DMA
400 help
401 Support for CSR SiRFSoC ARM Cortex A9 Platform
402
Linus Torvalds1da177e2005-04-16 15:20:36 -0700403config ARCH_EBSA110
404 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000405 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100406 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000407 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000408 select ARCH_USES_GETTIMEOFFSET
Rob Herringc334bc12012-03-04 22:03:33 -0600409 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400410 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700411 help
412 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000413 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700414 Ethernet interface, two PCMCIA sockets, two serial ports and a
415 parallel port.
416
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000417config ARCH_EP93XX
418 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000419 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000420 select ARM_AMBA
421 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100422 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700423 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100424 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000425 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100426 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000427 help
428 This enables support for the Cirrus EP93xx series of CPUs.
429
Linus Torvalds1da177e2005-04-16 15:20:36 -0700430config ARCH_FOOTBRIDGE
431 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000432 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700433 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000434 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200435 select HAVE_IDE
Rob Herringc334bc12012-03-04 22:03:33 -0600436 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400437 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000438 help
439 Support for systems based on the DC21285 companion chip
440 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700441
Russell King788c9702009-04-26 14:21:59 +0100442config ARCH_MXC
443 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100444 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100445 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100446 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100447 select CLKSRC_MMIO
Shawn Guo8b6c44f2011-06-07 13:59:14 +0800448 select GENERIC_IRQ_CHIP
Sascha Hauerffa2ea32011-09-20 14:31:24 +0200449 select MULTI_IRQ_HANDLER
Russell King788c9702009-04-26 14:21:59 +0100450 help
451 Support for Freescale MXC/iMX-based family of processors
452
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800453config ARCH_MXS
454 bool "Freescale MXS-based"
455 select GENERIC_CLOCKEVENTS
456 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100457 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100458 select CLKSRC_MMIO
Shawn Guo26646812012-04-29 00:02:39 +0800459 select COMMON_CLK
Shawn Guo6abda3e2011-12-20 16:12:34 +0800460 select HAVE_CLK_PREPARE
Shawn Guoa0f5e362012-05-06 23:13:13 +0800461 select PINCTRL
Shawn Guo6c4d4ef2012-05-04 21:42:41 +0800462 select USE_OF
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800463 help
464 Support for Freescale MXS-based family of processors
465
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100466config ARCH_NETX
467 bool "Hilscher NetX based"
Russell King234b6ced2011-05-08 14:09:47 +0100468 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000469 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100470 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100471 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000472 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100473 This enables support for systems based on the Hilscher NetX Soc
474
475config ARCH_H720X
476 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000477 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100478 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000479 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100480 help
481 This enables support for systems based on the Hynix HMS720x
482
Russell King3b938be2007-05-12 11:25:44 +0100483config ARCH_IOP13XX
484 bool "IOP13xx-based"
485 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000486 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100487 select PLAT_IOP
488 select PCI
489 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100490 select VMSPLIT_1G
Rob Herringc334bc12012-03-04 22:03:33 -0600491 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400492 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600493 select NEED_RET_TO_USER
Russell King3b938be2007-05-12 11:25:44 +0100494 help
495 Support for Intel's IOP13XX (XScale) family of processors.
496
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100497config ARCH_IOP32X
498 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100499 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000500 select CPU_XSCALE
Rob Herringc334bc12012-03-04 22:03:33 -0600501 select NEED_MACH_IO_H
Rob Herring13a50452012-02-07 09:28:22 -0600502 select NEED_RET_TO_USER
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100503 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100504 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100505 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000506 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100507 Support for Intel's 80219 and IOP32X (XScale) family of
508 processors.
509
510config ARCH_IOP33X
511 bool "IOP33x-based"
512 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000513 select CPU_XSCALE
Rob Herringc334bc12012-03-04 22:03:33 -0600514 select NEED_MACH_IO_H
Rob Herring13a50452012-02-07 09:28:22 -0600515 select NEED_RET_TO_USER
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100516 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100517 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100518 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100519 help
520 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700521
Russell King3b938be2007-05-12 11:25:44 +0100522config ARCH_IXP4XX
523 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100524 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500525 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell King234b6ced2011-05-08 14:09:47 +0100526 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000527 select CPU_XSCALE
Richard Cochran9dde0ae2012-05-23 18:19:51 +0200528 select ARCH_REQUIRE_GPIOLIB
Russell King3b938be2007-05-12 11:25:44 +0100529 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100530 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600531 select NEED_MACH_IO_H
Russell King485bdde2008-10-17 14:00:43 +0100532 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100533 help
Russell King3b938be2007-05-12 11:25:44 +0100534 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100535
Saeed Bisharaedabd382009-08-06 15:12:43 +0300536config ARCH_DOVE
537 bool "Marvell Dove"
Konstantin Porotchkin7b769bb2011-04-07 13:49:41 +0300538 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300539 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300540 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300541 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600542 select NEED_MACH_IO_H
Saeed Bisharaedabd382009-08-06 15:12:43 +0300543 select PLAT_ORION
544 help
545 Support for the Marvell Dove SoC 88AP510
546
Saeed Bishara651c74c2008-06-22 22:45:06 +0200547config ARCH_KIRKWOOD
548 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000549 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200550 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700551 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200552 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600553 select NEED_MACH_IO_H
Saeed Bishara651c74c2008-06-22 22:45:06 +0200554 select PLAT_ORION
555 help
556 Support for the following Marvell Kirkwood series SoCs:
557 88F6180, 88F6192 and 88F6281.
558
Kevin Wells40805942010-07-27 08:49:04 -0700559config ARCH_LPC32XX
560 bool "NXP LPC32XX"
Russell King234b6ced2011-05-08 14:09:47 +0100561 select CLKSRC_MMIO
Kevin Wells40805942010-07-27 08:49:04 -0700562 select CPU_ARM926T
563 select ARCH_REQUIRE_GPIOLIB
564 select HAVE_IDE
565 select ARM_AMBA
566 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100567 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700568 select GENERIC_CLOCKEVENTS
Roland Stiggef5c42272012-04-22 12:01:19 +0200569 select USE_OF
Kevin Wells40805942010-07-27 08:49:04 -0700570 help
571 Support for the NXP LPC32XX family of processors
572
Russell King788c9702009-04-26 14:21:59 +0100573config ARCH_MV78XX0
574 bool "Marvell MV78xx0"
575 select CPU_FEROCEON
576 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700577 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100578 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600579 select NEED_MACH_IO_H
Russell King788c9702009-04-26 14:21:59 +0100580 select PLAT_ORION
581 help
582 Support for the following Marvell MV78xx0 series SoCs:
583 MV781x0, MV782x0.
584
585config ARCH_ORION5X
586 bool "Marvell Orion"
587 depends on MMU
588 select CPU_FEROCEON
589 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700590 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100591 select GENERIC_CLOCKEVENTS
Andrew Lunnb5e12222012-06-22 20:57:57 +0200592 select NEED_MACH_IO_H
Russell King788c9702009-04-26 14:21:59 +0100593 select PLAT_ORION
594 help
595 Support for the following Marvell Orion 5x series SoCs:
596 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
597 Orion-2 (5281), Orion-1-90 (6183).
598
599config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500600 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100601 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100602 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100603 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100604 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800605 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800606 select IRQ_DOMAIN
Russell King788c9702009-04-26 14:21:59 +0100607 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400608 select SPARSE_IRQ
Leo Yan3c7241b2011-08-15 11:09:52 +0800609 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100610 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500611 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100612
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100613config ARCH_KS8695
614 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000615 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100616 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000617 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400618 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100619 help
620 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
621 System-on-Chip devices.
622
Russell King788c9702009-04-26 14:21:59 +0100623config ARCH_W90X900
624 bool "Nuvoton W90X900 CPU"
625 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100626 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100627 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100628 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100629 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200630 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100631 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
632 At present, the w90x900 has been renamed nuc900, regarding
633 the ARM series product line, you can login the following
634 link address to know more.
635
636 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
637 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400638
Erik Gillingc5f80062010-01-21 16:53:02 -0800639config ARCH_TEGRA
640 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000641 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100642 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800643 select GENERIC_CLOCKEVENTS
644 select GENERIC_GPIO
645 select HAVE_CLK
Dave Martin3b556582011-12-07 15:38:04 +0000646 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000647 select MIGHT_HAVE_CACHE_L2X0
Rob Herringc334bc12012-03-04 22:03:33 -0600648 select NEED_MACH_IO_H if PCI
Colin Cross7056d422010-04-22 20:30:13 -0700649 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800650 help
651 This enables support for NVIDIA Tegra based systems (Tegra APX,
652 Tegra 6xx and Tegra 2 series).
653
Jamie Ilesaf756552011-07-25 17:36:42 +0100654config ARCH_PICOXCELL
655 bool "Picochip picoXcell"
656 select ARCH_REQUIRE_GPIOLIB
657 select ARM_PATCH_PHYS_VIRT
658 select ARM_VIC
659 select CPU_V6K
660 select DW_APB_TIMER
Dinh Nguyencfda5902012-07-11 15:13:16 -0500661 select DW_APB_TIMER_OF
Jamie Ilesaf756552011-07-25 17:36:42 +0100662 select GENERIC_CLOCKEVENTS
663 select GENERIC_GPIO
Jamie Ilesaf756552011-07-25 17:36:42 +0100664 select HAVE_TCM
665 select NO_IOPORT
Jamie Iles98e27a52011-12-12 20:17:37 +0000666 select SPARSE_IRQ
Jamie Ilesaf756552011-07-25 17:36:42 +0100667 select USE_OF
668 help
669 This enables support for systems based on the Picochip picoXcell
670 family of Femtocell devices. The picoxcell support requires device tree
671 for all boards.
672
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100673config ARCH_PNX4008
674 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000675 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100676 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000677 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100678 help
679 This enables support for Philips PNX4008 mobile platform.
680
Linus Torvalds1da177e2005-04-16 15:20:36 -0700681config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700682 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100683 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500684 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100685 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100686 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100687 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700688 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100689 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800690 select GPIO_PXA
Eric Miaobd5ce432009-01-20 12:06:01 +0800691 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800692 select SPARSE_IRQ
Eric Miao4e234cc2011-04-04 15:06:33 +0800693 select AUTO_ZRELADDR
Eric Miao8a97ae22011-05-18 21:30:04 +0800694 select MULTI_IRQ_HANDLER
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +0200695 select ARM_CPU_SUSPEND if PM
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200696 select HAVE_IDE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000697 help
eric miao2c8086a2007-09-11 19:13:17 -0700698 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700699
Russell King788c9702009-04-26 14:21:59 +0100700config ARCH_MSM
701 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500702 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800703 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700704 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800705 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800706 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800707 Support for Qualcomm MSM/QSD based systems. This runs on the
708 apps processor of the MSM/QSD and depends on a shared memory
709 interface to the modem processor which runs the baseband
710 stack and controls some vital subsystems
711 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800712
Magnus Dammc793c1b2010-02-05 11:14:49 +0000713config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900714 bool "Renesas SH-Mobile / R-Mobile"
715 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900716 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900717 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000718 select HAVE_SMP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900719 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000720 select MIGHT_HAVE_CACHE_L2X0
Paul Mundt6d72ad32010-11-16 16:10:20 +0900721 select NO_IOPORT
722 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000723 select MULTI_IRQ_HANDLER
Rafael J. Wysockie3e01092011-07-01 22:13:56 +0200724 select PM_GENERIC_DOMAINS if PM
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400725 select NEED_MACH_MEMORY_H
Magnus Dammc793c1b2010-02-05 11:14:49 +0000726 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900727 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000728
Linus Torvalds1da177e2005-04-16 15:20:36 -0700729config ARCH_RPC
730 bool "RiscPC"
731 select ARCH_ACORN
732 select FIQ
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100733 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100734 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000735 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000736 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100737 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000738 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200739 select HAVE_IDE
Rob Herringc334bc12012-03-04 22:03:33 -0600740 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400741 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700742 help
743 On the Acorn Risc-PC, Linux can support the internal IDE disk and
744 CD-ROM interface, serial and parallel port, and the floppy drive.
745
746config ARCH_SA1100
747 bool "SA1100-based"
Russell King234b6ced2011-05-08 14:09:47 +0100748 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000749 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100750 select ISA
Russell King05944d72006-11-30 20:43:51 +0000751 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500752 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100753 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000754 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100755 select GENERIC_CLOCKEVENTS
Jett.Zhou4a8f8342011-11-30 14:32:36 +0800756 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700757 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200758 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400759 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100760 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000761 help
762 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700763
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900764config ARCH_S3C24XX
765 bool "Samsung S3C24XX SoCs"
David Brownell0a938b92007-03-05 00:30:18 -0800766 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100767 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700768 select HAVE_CLK
Thomas Abrahame83626f2011-06-14 19:12:26 +0900769 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000770 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900771 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900772 select HAVE_S3C_RTC if RTC_CLASS
773 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Rob Herringc334bc12012-03-04 22:03:33 -0600774 select NEED_MACH_IO_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700775 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900776 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
777 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
778 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
779 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900780
Ben Dooksa08ab632008-10-21 14:06:39 +0100781config ARCH_S3C64XX
782 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000783 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900784 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900785 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100786 select HAVE_CLK
Mark Brown67003972011-10-11 08:57:11 +0900787 select HAVE_TCM
Thomas Abraham226e85f2011-06-14 19:12:26 +0900788 select CLKDEV_LOOKUP
Ben Dooks89f0ce72010-01-26 15:49:15 +0900789 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000790 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100791 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900792 select ARCH_REQUIRE_GPIOLIB
793 select SAMSUNG_CLKSRC
794 select SAMSUNG_IRQ_VIC_TIMER
Ben Dooks89f0ce72010-01-26 15:49:15 +0900795 select S3C_GPIO_TRACK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900796 select S3C_DEV_NAND
797 select USB_ARCH_HAS_OHCI
798 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900799 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900800 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100801 help
802 Samsung S3C64XX series based systems
803
Kukjin Kim49b7a492010-09-07 15:47:18 +0900804config ARCH_S5P64X0
805 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900806 select CPU_V6
807 select GENERIC_GPIO
808 select HAVE_CLK
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900809 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900810 select CLKSRC_MMIO
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900811 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900812 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900813 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900814 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900815 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900816 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
817 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900818
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200819config ARCH_S5PC100
820 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900821 select GENERIC_GPIO
822 select HAVE_CLK
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900823 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900824 select CPU_V7
Ben Dooks925c68c2010-05-20 20:48:28 +0900825 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900826 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900827 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900828 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900829 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200830 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900831
Kukjin Kim170f4e42010-02-24 16:40:44 +0900832config ARCH_S5PV210
833 bool "Samsung S5PV210/S5PC110"
834 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900835 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900836 select ARCH_HAS_HOLES_MEMORYMODEL
Kukjin Kim170f4e42010-02-24 16:40:44 +0900837 select GENERIC_GPIO
838 select HAVE_CLK
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900839 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900840 select CLKSRC_MMIO
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900841 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900842 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900843 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900844 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900845 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400846 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900847 help
848 Samsung S5PV210/S5PC110 series based systems
849
Kukjin Kim83014572011-11-06 13:54:56 +0900850config ARCH_EXYNOS
851 bool "SAMSUNG EXYNOS"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900852 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900853 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900854 select ARCH_HAS_HOLES_MEMORYMODEL
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900855 select GENERIC_GPIO
856 select HAVE_CLK
Thomas Abrahambadc4f22011-06-14 19:12:27 +0900857 select CLKDEV_LOOKUP
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900858 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900859 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900860 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900861 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900862 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400863 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900864 help
Kukjin Kim83014572011-11-06 13:54:56 +0900865 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900866
Linus Torvalds1da177e2005-04-16 15:20:36 -0700867config ARCH_SHARK
868 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000869 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100870 select ISA
871 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100872 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100873 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000874 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400875 select NEED_MACH_MEMORY_H
Rob Herringc334bc12012-03-04 22:03:33 -0600876 select NEED_MACH_IO_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000877 help
878 Support for the StrongARM based Digital DNARD machine, also known
879 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700880
Linus Walleijd98aac72009-04-27 10:21:46 +0100881config ARCH_U300
882 bool "ST-Ericsson U300 Series"
883 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100884 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100885 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100886 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100887 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200888 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100889 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100890 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100891 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900892 select HAVE_MACH_CLKDEV
Linus Walleijd98aac72009-04-27 10:21:46 +0100893 select GENERIC_GPIO
Linus Walleijcc890cd2011-09-08 09:04:51 +0100894 select ARCH_REQUIRE_GPIOLIB
Linus Walleijd98aac72009-04-27 10:21:46 +0100895 help
896 Support for ST-Ericsson U300 series mobile platforms.
897
Russell Kingccf50e22010-03-15 19:03:06 +0000898config ARCH_U8500
899 bool "ST-Ericsson U8500 Series"
Arnd Bergmann67ae14f2012-02-25 12:48:49 -0700900 depends on MMU
Russell Kingccf50e22010-03-15 19:03:06 +0000901 select CPU_V7
902 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000903 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100904 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100905 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100906 select ARCH_HAS_CPUFREQ
Dave Martin3b556582011-12-07 15:38:04 +0000907 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000908 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000909 help
910 Support for ST-Ericsson's Ux500 architecture
911
912config ARCH_NOMADIK
913 bool "STMicroelectronics Nomadik"
914 select ARM_AMBA
915 select ARM_VIC
916 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100917 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000918 select GENERIC_CLOCKEVENTS
Arnd Bergmann0fa7be42012-05-15 11:24:34 +0000919 select PINCTRL
Dave Martince5ea9f2011-11-29 15:56:19 +0000920 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000921 select ARCH_REQUIRE_GPIOLIB
922 help
923 Support for the Nomadik platform by ST-Ericsson
924
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100925config ARCH_DAVINCI
926 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100927 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700928 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100929 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700930 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100931 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700932 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100933 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530934 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100935 help
936 Support for TI's DaVinci platform.
937
Russell King3b938be2007-05-12 11:25:44 +0100938config ARCH_OMAP
939 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700940 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700941 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100942 select ARCH_HAS_CPUFREQ
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700943 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700944 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800945 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100946 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200947 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100948
viresh kumarcee37e52010-04-01 12:31:05 +0100949config PLAT_SPEAR
950 bool "ST SPEAr"
951 select ARM_AMBA
952 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100953 select CLKDEV_LOOKUP
Viresh Kumar5df33a62012-04-10 09:02:35 +0530954 select COMMON_CLK
Russell Kingd6e15d72011-05-08 17:10:14 +0100955 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100956 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100957 select HAVE_CLK
958 help
959 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
960
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100961config ARCH_VT8500
962 bool "VIA/WonderMedia 85xx"
963 select CPU_ARM926T
964 select GENERIC_GPIO
965 select ARCH_HAS_CPUFREQ
966 select GENERIC_CLOCKEVENTS
967 select ARCH_REQUIRE_GPIOLIB
968 select HAVE_PWM
969 help
970 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +0800971
John Linnb85a3ef2011-06-20 11:47:27 -0600972config ARCH_ZYNQ
973 bool "Xilinx Zynq ARM Cortex A9 Platform"
Binghua Duan02c981c2011-07-08 17:40:12 +0800974 select CPU_V7
Binghua Duan02c981c2011-07-08 17:40:12 +0800975 select GENERIC_CLOCKEVENTS
976 select CLKDEV_LOOKUP
John Linnb85a3ef2011-06-20 11:47:27 -0600977 select ARM_GIC
978 select ARM_AMBA
979 select ICST
Dave Martince5ea9f2011-11-29 15:56:19 +0000980 select MIGHT_HAVE_CACHE_L2X0
Binghua Duan02c981c2011-07-08 17:40:12 +0800981 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +0800982 help
John Linnb85a3ef2011-06-20 11:47:27 -0600983 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -0700984endchoice
985
Russell Kingccf50e22010-03-15 19:03:06 +0000986#
987# This is sorted alphabetically by mach-* pathname. However, plat-*
988# Kconfigs may be included either alphabetically (according to the
989# plat- suffix) or along side the corresponding mach-* source.
990#
Russell King95b8f202010-01-14 11:43:54 +0000991source "arch/arm/mach-at91/Kconfig"
992
993source "arch/arm/mach-bcmring/Kconfig"
994
Linus Torvalds1da177e2005-04-16 15:20:36 -0700995source "arch/arm/mach-clps711x/Kconfig"
996
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300997source "arch/arm/mach-cns3xxx/Kconfig"
998
Russell King95b8f202010-01-14 11:43:54 +0000999source "arch/arm/mach-davinci/Kconfig"
1000
1001source "arch/arm/mach-dove/Kconfig"
1002
Lennert Buytenheke7736d42006-03-20 17:10:13 +00001003source "arch/arm/mach-ep93xx/Kconfig"
1004
Linus Torvalds1da177e2005-04-16 15:20:36 -07001005source "arch/arm/mach-footbridge/Kconfig"
1006
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001007source "arch/arm/mach-gemini/Kconfig"
1008
Russell King95b8f202010-01-14 11:43:54 +00001009source "arch/arm/mach-h720x/Kconfig"
1010
Linus Torvalds1da177e2005-04-16 15:20:36 -07001011source "arch/arm/mach-integrator/Kconfig"
1012
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001013source "arch/arm/mach-iop32x/Kconfig"
1014
1015source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001016
Dan Williams285f5fa2006-12-07 02:59:39 +01001017source "arch/arm/mach-iop13xx/Kconfig"
1018
Linus Torvalds1da177e2005-04-16 15:20:36 -07001019source "arch/arm/mach-ixp4xx/Kconfig"
1020
Russell King95b8f202010-01-14 11:43:54 +00001021source "arch/arm/mach-kirkwood/Kconfig"
1022
1023source "arch/arm/mach-ks8695/Kconfig"
1024
Kevin Wells40805942010-07-27 08:49:04 -07001025source "arch/arm/mach-lpc32xx/Kconfig"
1026
Russell King95b8f202010-01-14 11:43:54 +00001027source "arch/arm/mach-msm/Kconfig"
1028
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001029source "arch/arm/mach-mv78xx0/Kconfig"
1030
Russell King95b8f202010-01-14 11:43:54 +00001031source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001032
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001033source "arch/arm/mach-mxs/Kconfig"
1034
Russell King95b8f202010-01-14 11:43:54 +00001035source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001036
Russell King95b8f202010-01-14 11:43:54 +00001037source "arch/arm/mach-nomadik/Kconfig"
1038source "arch/arm/plat-nomadik/Kconfig"
1039
Tony Lindgrend48af152005-07-10 19:58:17 +01001040source "arch/arm/plat-omap/Kconfig"
1041
1042source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001043
Tony Lindgren1dbae812005-11-10 14:26:51 +00001044source "arch/arm/mach-omap2/Kconfig"
1045
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001046source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001047
Russell King95b8f202010-01-14 11:43:54 +00001048source "arch/arm/mach-pxa/Kconfig"
1049source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001050
Russell King95b8f202010-01-14 11:43:54 +00001051source "arch/arm/mach-mmp/Kconfig"
1052
1053source "arch/arm/mach-realview/Kconfig"
1054
1055source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001056
Ben Dookscf383672009-11-10 00:14:58 +00001057source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001058source "arch/arm/plat-s3c24xx/Kconfig"
1059
viresh kumarcee37e52010-04-01 12:31:05 +01001060source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001061
Kukjin Kim85fd6d62012-02-06 09:38:19 +09001062source "arch/arm/mach-s3c24xx/Kconfig"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001063if ARCH_S3C24XX
Ben Dooksa21765a2007-02-11 18:31:01 +01001064source "arch/arm/mach-s3c2412/Kconfig"
1065source "arch/arm/mach-s3c2440/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001066endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001067
Ben Dooksa08ab632008-10-21 14:06:39 +01001068if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001069source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001070endif
1071
Kukjin Kim49b7a492010-09-07 15:47:18 +09001072source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001073
Byungho Min5a7652f2009-06-23 21:39:42 +09001074source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001075
Kukjin Kim170f4e42010-02-24 16:40:44 +09001076source "arch/arm/mach-s5pv210/Kconfig"
1077
Kukjin Kim83014572011-11-06 13:54:56 +09001078source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001079
Russell King882d01f2010-03-02 23:40:15 +00001080source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001081
Erik Gillingc5f80062010-01-21 16:53:02 -08001082source "arch/arm/mach-tegra/Kconfig"
1083
Russell King95b8f202010-01-14 11:43:54 +00001084source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001085
Russell King95b8f202010-01-14 11:43:54 +00001086source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001087
1088source "arch/arm/mach-versatile/Kconfig"
1089
Russell Kingceade892010-02-11 21:44:53 +00001090source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001091source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001092
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001093source "arch/arm/mach-vt8500/Kconfig"
1094
wanzongshun7ec80dd2008-12-03 03:55:38 +01001095source "arch/arm/mach-w90x900/Kconfig"
1096
Linus Torvalds1da177e2005-04-16 15:20:36 -07001097# Definitions to make life easier
1098config ARCH_ACORN
1099 bool
1100
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001101config PLAT_IOP
1102 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001103 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001104
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001105config PLAT_ORION
1106 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001107 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001108 select GENERIC_IRQ_CHIP
Andrew Lunn2f129bf2011-12-15 08:15:07 +01001109 select COMMON_CLK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001110
Eric Miaobd5ce432009-01-20 12:06:01 +08001111config PLAT_PXA
1112 bool
1113
Russell Kingf4b8b312010-01-14 12:48:06 +00001114config PLAT_VERSATILE
1115 bool
1116
Russell Kinge3887712010-01-14 13:30:16 +00001117config ARM_TIMER_SP804
1118 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001119 select CLKSRC_MMIO
Rob Herringa7bf6162011-12-12 15:29:08 -06001120 select HAVE_SCHED_CLOCK
Russell Kinge3887712010-01-14 13:30:16 +00001121
Linus Torvalds1da177e2005-04-16 15:20:36 -07001122source arch/arm/mm/Kconfig
1123
Russell King958cab02011-12-11 10:04:00 +00001124config ARM_NR_BANKS
1125 int
1126 default 16 if ARCH_EP93XX
1127 default 8
1128
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001129config IWMMXT
1130 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001131 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1132 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001133 help
1134 Enable support for iWMMXt context switching at run time if
1135 running on a CPU that supports it.
1136
Linus Torvalds1da177e2005-04-16 15:20:36 -07001137config XSCALE_PMU
1138 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001139 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001140 default y
1141
Jamie Iles0f4f0672010-02-02 20:23:15 +01001142config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001143 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001144 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001145 default y
1146 bool
1147
eric miao52108642010-12-13 09:42:34 +01001148config MULTI_IRQ_HANDLER
1149 bool
1150 help
1151 Allow each machine to specify it's own IRQ handler at run time.
1152
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001153if !MMU
1154source "arch/arm/Kconfig-nommu"
1155endif
1156
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001157config ARM_ERRATA_326103
1158 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1159 depends on CPU_V6
1160 help
1161 Executing a SWP instruction to read-only memory does not set bit 11
1162 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1163 treat the access as a read, preventing a COW from occurring and
1164 causing the faulting task to livelock.
1165
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001166config ARM_ERRATA_411920
1167 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001168 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001169 help
1170 Invalidation of the Instruction Cache operation can
1171 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1172 It does not affect the MPCore. This option enables the ARM Ltd.
1173 recommended workaround.
1174
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001175config ARM_ERRATA_430973
1176 bool "ARM errata: Stale prediction on replaced interworking branch"
1177 depends on CPU_V7
1178 help
1179 This option enables the workaround for the 430973 Cortex-A8
1180 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1181 interworking branch is replaced with another code sequence at the
1182 same virtual address, whether due to self-modifying code or virtual
1183 to physical address re-mapping, Cortex-A8 does not recover from the
1184 stale interworking branch prediction. This results in Cortex-A8
1185 executing the new code sequence in the incorrect ARM or Thumb state.
1186 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1187 and also flushes the branch target cache at every context switch.
1188 Note that setting specific bits in the ACTLR register may not be
1189 available in non-secure mode.
1190
Catalin Marinas855c5512009-04-30 17:06:15 +01001191config ARM_ERRATA_458693
1192 bool "ARM errata: Processor deadlock when a false hazard is created"
1193 depends on CPU_V7
1194 help
1195 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1196 erratum. For very specific sequences of memory operations, it is
1197 possible for a hazard condition intended for a cache line to instead
1198 be incorrectly associated with a different cache line. This false
1199 hazard might then cause a processor deadlock. The workaround enables
1200 the L1 caching of the NEON accesses and disables the PLD instruction
1201 in the ACTLR register. Note that setting specific bits in the ACTLR
1202 register may not be available in non-secure mode.
1203
Catalin Marinas0516e462009-04-30 17:06:20 +01001204config ARM_ERRATA_460075
1205 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1206 depends on CPU_V7
1207 help
1208 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1209 erratum. Any asynchronous access to the L2 cache may encounter a
1210 situation in which recent store transactions to the L2 cache are lost
1211 and overwritten with stale memory contents from external memory. The
1212 workaround disables the write-allocate mode for the L2 cache via the
1213 ACTLR register. Note that setting specific bits in the ACTLR register
1214 may not be available in non-secure mode.
1215
Will Deacon9f050272010-09-14 09:51:43 +01001216config ARM_ERRATA_742230
1217 bool "ARM errata: DMB operation may be faulty"
1218 depends on CPU_V7 && SMP
1219 help
1220 This option enables the workaround for the 742230 Cortex-A9
1221 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1222 between two write operations may not ensure the correct visibility
1223 ordering of the two writes. This workaround sets a specific bit in
1224 the diagnostic register of the Cortex-A9 which causes the DMB
1225 instruction to behave as a DSB, ensuring the correct behaviour of
1226 the two writes.
1227
Will Deacona672e992010-09-14 09:53:02 +01001228config ARM_ERRATA_742231
1229 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1230 depends on CPU_V7 && SMP
1231 help
1232 This option enables the workaround for the 742231 Cortex-A9
1233 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1234 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1235 accessing some data located in the same cache line, may get corrupted
1236 data due to bad handling of the address hazard when the line gets
1237 replaced from one of the CPUs at the same time as another CPU is
1238 accessing it. This workaround sets specific bits in the diagnostic
1239 register of the Cortex-A9 which reduces the linefill issuing
1240 capabilities of the processor.
1241
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001242config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001243 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001244 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001245 help
1246 The PL310 L2 cache controller implements three types of Clean &
1247 Invalidate maintenance operations: by Physical Address
1248 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1249 They are architecturally defined to behave as the execution of a
1250 clean operation followed immediately by an invalidate operation,
1251 both performing to the same memory location. This functionality
1252 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001253 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001254
1255config ARM_ERRATA_720789
1256 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001257 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001258 help
1259 This option enables the workaround for the 720789 Cortex-A9 (prior to
1260 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1261 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1262 As a consequence of this erratum, some TLB entries which should be
1263 invalidated are not, resulting in an incoherency in the system page
1264 tables. The workaround changes the TLB flushing routines to invalidate
1265 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001266
Russell King1f0090a2011-03-16 23:35:25 +00001267config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001268 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001269 depends on CACHE_L2X0
1270 help
1271 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1272 operation (offset 0x7FC). This operation runs in background so that
1273 PL310 can handle normal accesses while it is in progress. Under very
1274 rare circumstances, due to this erratum, write data can be lost when
1275 PL310 treats a cacheable write transaction during a Clean &
1276 Invalidate by Way operation.
1277
Will Deacon475d92f2010-09-28 14:02:02 +01001278config ARM_ERRATA_743622
1279 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1280 depends on CPU_V7
1281 help
1282 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001283 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001284 optimisation in the Cortex-A9 Store Buffer may lead to data
1285 corruption. This workaround sets a specific bit in the diagnostic
1286 register of the Cortex-A9 which disables the Store Buffer
1287 optimisation, preventing the defect from occurring. This has no
1288 visible impact on the overall performance or power consumption of the
1289 processor.
1290
Will Deacon9a27c272011-02-18 16:36:35 +01001291config ARM_ERRATA_751472
1292 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001293 depends on CPU_V7
Will Deacon9a27c272011-02-18 16:36:35 +01001294 help
1295 This option enables the workaround for the 751472 Cortex-A9 (prior
1296 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1297 completion of a following broadcasted operation if the second
1298 operation is received by a CPU before the ICIALLUIS has completed,
1299 potentially leading to corrupted entries in the cache or TLB.
1300
Will Deaconfa0ce402011-11-14 17:24:57 +01001301config PL310_ERRATA_753970
1302 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001303 depends on CACHE_PL310
1304 help
1305 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1306
1307 Under some condition the effect of cache sync operation on
1308 the store buffer still remains when the operation completes.
1309 This means that the store buffer is always asked to drain and
1310 this prevents it from merging any further writes. The workaround
1311 is to replace the normal offset of cache sync operation (0x730)
1312 by another offset targeting an unmapped PL310 register 0x740.
1313 This has the same effect as the cache sync operation: store buffer
1314 drain and waiting for all buffers empty.
1315
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001316config ARM_ERRATA_754322
1317 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1318 depends on CPU_V7
1319 help
1320 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1321 r3p*) erratum. A speculative memory access may cause a page table walk
1322 which starts prior to an ASID switch but completes afterwards. This
1323 can populate the micro-TLB with a stale entry which may be hit with
1324 the new ASID. This workaround places two dsb instructions in the mm
1325 switching code so that no page table walks can cross the ASID switch.
1326
Will Deacon5dab26af2011-03-04 12:38:54 +01001327config ARM_ERRATA_754327
1328 bool "ARM errata: no automatic Store Buffer drain"
1329 depends on CPU_V7 && SMP
1330 help
1331 This option enables the workaround for the 754327 Cortex-A9 (prior to
1332 r2p0) erratum. The Store Buffer does not have any automatic draining
1333 mechanism and therefore a livelock may occur if an external agent
1334 continuously polls a memory location waiting to observe an update.
1335 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1336 written polling loops from denying visibility of updates to memory.
1337
Catalin Marinas145e10e2011-08-15 11:04:41 +01001338config ARM_ERRATA_364296
1339 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1340 depends on CPU_V6 && !SMP
1341 help
1342 This options enables the workaround for the 364296 ARM1136
1343 r0p2 erratum (possible cache data corruption with
1344 hit-under-miss enabled). It sets the undocumented bit 31 in
1345 the auxiliary control register and the FI bit in the control
1346 register, thus disabling hit-under-miss without putting the
1347 processor into full low interrupt latency mode. ARM11MPCore
1348 is not affected.
1349
Will Deaconf630c1b2011-09-15 11:45:15 +01001350config ARM_ERRATA_764369
1351 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1352 depends on CPU_V7 && SMP
1353 help
1354 This option enables the workaround for erratum 764369
1355 affecting Cortex-A9 MPCore with two or more processors (all
1356 current revisions). Under certain timing circumstances, a data
1357 cache line maintenance operation by MVA targeting an Inner
1358 Shareable memory region may fail to proceed up to either the
1359 Point of Coherency or to the Point of Unification of the
1360 system. This workaround adds a DSB instruction before the
1361 relevant cache maintenance functions and sets a specific bit
1362 in the diagnostic control register of the SCU.
1363
Will Deacon11ed0ba2011-11-14 17:24:58 +01001364config PL310_ERRATA_769419
1365 bool "PL310 errata: no automatic Store Buffer drain"
1366 depends on CACHE_L2X0
1367 help
1368 On revisions of the PL310 prior to r3p2, the Store Buffer does
1369 not automatically drain. This can cause normal, non-cacheable
1370 writes to be retained when the memory system is idle, leading
1371 to suboptimal I/O performance for drivers using coherent DMA.
1372 This option adds a write barrier to the cpu_idle loop so that,
1373 on systems with an outer cache, the store buffer is drained
1374 explicitly.
1375
Linus Torvalds1da177e2005-04-16 15:20:36 -07001376endmenu
1377
1378source "arch/arm/common/Kconfig"
1379
Linus Torvalds1da177e2005-04-16 15:20:36 -07001380menu "Bus support"
1381
1382config ARM_AMBA
1383 bool
1384
1385config ISA
1386 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001387 help
1388 Find out whether you have ISA slots on your motherboard. ISA is the
1389 name of a bus system, i.e. the way the CPU talks to the other stuff
1390 inside your box. Other bus systems are PCI, EISA, MicroChannel
1391 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1392 newer boards don't support it. If you have ISA, say Y, otherwise N.
1393
Russell King065909b2006-01-04 15:44:16 +00001394# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001395config ISA_DMA
1396 bool
Russell King065909b2006-01-04 15:44:16 +00001397 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001398
Russell King065909b2006-01-04 15:44:16 +00001399# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001400config ISA_DMA_API
1401 bool
Al Viro5cae8412005-05-04 05:39:22 +01001402
Linus Torvalds1da177e2005-04-16 15:20:36 -07001403config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001404 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001405 help
1406 Find out whether you have a PCI motherboard. PCI is the name of a
1407 bus system, i.e. the way the CPU talks to the other stuff inside
1408 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1409 VESA. If you have PCI, say Y, otherwise N.
1410
Anton Vorontsov52882172010-04-19 13:20:49 +01001411config PCI_DOMAINS
1412 bool
1413 depends on PCI
1414
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001415config PCI_NANOENGINE
1416 bool "BSE nanoEngine PCI support"
1417 depends on SA1100_NANOENGINE
1418 help
1419 Enable PCI on the BSE nanoEngine board.
1420
Matthew Wilcox36e23592007-07-10 10:54:40 -06001421config PCI_SYSCALL
1422 def_bool PCI
1423
Linus Torvalds1da177e2005-04-16 15:20:36 -07001424# Select the host bridge type
1425config PCI_HOST_VIA82C505
1426 bool
1427 depends on PCI && ARCH_SHARK
1428 default y
1429
Mike Rapoporta0113a92007-11-25 08:55:34 +01001430config PCI_HOST_ITE8152
1431 bool
1432 depends on PCI && MACH_ARMCORE
1433 default y
1434 select DMABOUNCE
1435
Linus Torvalds1da177e2005-04-16 15:20:36 -07001436source "drivers/pci/Kconfig"
1437
1438source "drivers/pcmcia/Kconfig"
1439
1440endmenu
1441
1442menu "Kernel Features"
1443
Dave Martin3b556582011-12-07 15:38:04 +00001444config HAVE_SMP
1445 bool
1446 help
1447 This option should be selected by machines which have an SMP-
1448 capable CPU.
1449
1450 The only effect of this option is to make the SMP-related
1451 options available to the user for configuration.
1452
Linus Torvalds1da177e2005-04-16 15:20:36 -07001453config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001454 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001455 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001456 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001457 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001458 depends on MMU
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001459 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001460 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001461 help
1462 This enables support for systems with more than one CPU. If you have
1463 a system with only one CPU, like most personal computers, say N. If
1464 you have a system with more than one CPU, say Y.
1465
1466 If you say N here, the kernel will run on single and multiprocessor
1467 machines, but will use only one CPU of a multiprocessor machine. If
1468 you say Y here, the kernel will run on many, but not all, single
1469 processor machines. On a single processor machine, the kernel will
1470 run faster if you say N here.
1471
Paul Bolle395cf962011-08-15 02:02:26 +02001472 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001473 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001474 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001475
1476 If you don't know what to do here, say N.
1477
Russell Kingf00ec482010-09-04 10:47:48 +01001478config SMP_ON_UP
1479 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1480 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001481 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001482 default y
1483 help
1484 SMP kernels contain instructions which fail on non-SMP processors.
1485 Enabling this option allows the kernel to modify itself to make
1486 these instructions safe. Disabling it allows about 1K of space
1487 savings.
1488
1489 If you don't know what to do here, say Y.
1490
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001491config ARM_CPU_TOPOLOGY
1492 bool "Support cpu topology definition"
1493 depends on SMP && CPU_V7
1494 default y
1495 help
1496 Support ARM cpu topology definition. The MPIDR register defines
1497 affinity between processors which is then used to describe the cpu
1498 topology of an ARM System.
1499
1500config SCHED_MC
1501 bool "Multi-core scheduler support"
1502 depends on ARM_CPU_TOPOLOGY
1503 help
1504 Multi-core scheduler support improves the CPU scheduler's decision
1505 making when dealing with multi-core CPU chips at a cost of slightly
1506 increased overhead in some places. If unsure say N here.
1507
1508config SCHED_SMT
1509 bool "SMT scheduler support"
1510 depends on ARM_CPU_TOPOLOGY
1511 help
1512 Improves the CPU scheduler's decision making when dealing with
1513 MultiThreading at a cost of slightly increased overhead in some
1514 places. If unsure say N here.
1515
Russell Kinga8cbcd92009-05-16 11:51:14 +01001516config HAVE_ARM_SCU
1517 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001518 help
1519 This option enables support for the ARM system coherency unit
1520
Marc Zyngier022c03a2012-01-11 17:25:17 +00001521config ARM_ARCH_TIMER
1522 bool "Architected timer support"
1523 depends on CPU_V7
1524 help
1525 This option enables support for the ARM architected timer
1526
Russell Kingf32f4ce2009-05-16 12:14:21 +01001527config HAVE_ARM_TWD
1528 bool
1529 depends on SMP
1530 help
1531 This options enables support for the ARM timer and watchdog unit
1532
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001533choice
1534 prompt "Memory split"
1535 default VMSPLIT_3G
1536 help
1537 Select the desired split between kernel and user memory.
1538
1539 If you are not absolutely sure what you are doing, leave this
1540 option alone!
1541
1542 config VMSPLIT_3G
1543 bool "3G/1G user/kernel split"
1544 config VMSPLIT_2G
1545 bool "2G/2G user/kernel split"
1546 config VMSPLIT_1G
1547 bool "1G/3G user/kernel split"
1548endchoice
1549
1550config PAGE_OFFSET
1551 hex
1552 default 0x40000000 if VMSPLIT_1G
1553 default 0x80000000 if VMSPLIT_2G
1554 default 0xC0000000
1555
Linus Torvalds1da177e2005-04-16 15:20:36 -07001556config NR_CPUS
1557 int "Maximum number of CPUs (2-32)"
1558 range 2 32
1559 depends on SMP
1560 default "4"
1561
Russell Kinga054a812005-11-02 22:24:33 +00001562config HOTPLUG_CPU
1563 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1564 depends on SMP && HOTPLUG && EXPERIMENTAL
1565 help
1566 Say Y here to experiment with turning CPUs off and on. CPUs
1567 can be controlled through /sys/devices/system/cpu.
1568
Russell King37ee16a2005-11-08 19:08:05 +00001569config LOCAL_TIMERS
1570 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001571 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001572 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001573 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001574 help
1575 Enable support for local timers on SMP platforms, rather then the
1576 legacy IPI broadcast method. Local timers allows the system
1577 accounting to be spread across the timer interval, preventing a
1578 "thundering herd" at every timer tick.
1579
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001580config ARCH_NR_GPIO
1581 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001582 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Philippe Langlais70227a42012-02-13 10:51:22 +01001583 default 355 if ARCH_U8500
Paul Parsons9a01ec32012-02-27 01:58:45 +00001584 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001585 default 0
1586 help
1587 Maximum number of GPIOs in the system.
1588
1589 If unsure, leave the default value.
1590
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001591source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001592
Russell Kingf8065812006-03-02 22:41:59 +00001593config HZ
1594 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001595 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001596 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001597 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001598 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001599 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001600 default 100
1601
Catalin Marinas16c79652009-07-24 12:33:02 +01001602config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001603 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001604 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001605 select AEABI
1606 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001607 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001608 help
1609 By enabling this option, the kernel will be compiled in
1610 Thumb-2 mode. A compiler/assembler that understand the unified
1611 ARM-Thumb syntax is needed.
1612
1613 If unsure, say N.
1614
Dave Martin6f685c52011-03-03 11:41:12 +01001615config THUMB2_AVOID_R_ARM_THM_JUMP11
1616 bool "Work around buggy Thumb-2 short branch relocations in gas"
1617 depends on THUMB2_KERNEL && MODULES
1618 default y
1619 help
1620 Various binutils versions can resolve Thumb-2 branches to
1621 locally-defined, preemptible global symbols as short-range "b.n"
1622 branch instructions.
1623
1624 This is a problem, because there's no guarantee the final
1625 destination of the symbol, or any candidate locations for a
1626 trampoline, are within range of the branch. For this reason, the
1627 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1628 relocation in modules at all, and it makes little sense to add
1629 support.
1630
1631 The symptom is that the kernel fails with an "unsupported
1632 relocation" error when loading some modules.
1633
1634 Until fixed tools are available, passing
1635 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1636 code which hits this problem, at the cost of a bit of extra runtime
1637 stack usage in some cases.
1638
1639 The problem is described in more detail at:
1640 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1641
1642 Only Thumb-2 kernels are affected.
1643
1644 Unless you are sure your tools don't have this problem, say Y.
1645
Catalin Marinas0becb082009-07-24 12:32:53 +01001646config ARM_ASM_UNIFIED
1647 bool
1648
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001649config AEABI
1650 bool "Use the ARM EABI to compile the kernel"
1651 help
1652 This option allows for the kernel to be compiled using the latest
1653 ARM ABI (aka EABI). This is only useful if you are using a user
1654 space environment that is also compiled with EABI.
1655
1656 Since there are major incompatibilities between the legacy ABI and
1657 EABI, especially with regard to structure member alignment, this
1658 option also changes the kernel syscall calling convention to
1659 disambiguate both ABIs and allow for backward compatibility support
1660 (selected with CONFIG_OABI_COMPAT).
1661
1662 To use this you need GCC version 4.0.0 or later.
1663
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001664config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001665 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001666 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001667 default y
1668 help
1669 This option preserves the old syscall interface along with the
1670 new (ARM EABI) one. It also provides a compatibility layer to
1671 intercept syscalls that have structure arguments which layout
1672 in memory differs between the legacy ABI and the new ARM EABI
1673 (only for non "thumb" binaries). This option adds a tiny
1674 overhead to all syscalls and produces a slightly larger kernel.
1675 If you know you'll be using only pure EABI user space then you
1676 can say N here. If this option is not selected and you attempt
1677 to execute a legacy ABI binary then the result will be
1678 UNPREDICTABLE (in fact it can be predicted that it won't work
1679 at all). If in doubt say Y.
1680
Mel Gormaneb335752009-05-13 17:34:48 +01001681config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001682 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001683
Russell King05944d72006-11-30 20:43:51 +00001684config ARCH_SPARSEMEM_ENABLE
1685 bool
1686
Russell King07a2f732008-10-01 21:39:58 +01001687config ARCH_SPARSEMEM_DEFAULT
1688 def_bool ARCH_SPARSEMEM_ENABLE
1689
Russell King05944d72006-11-30 20:43:51 +00001690config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001691 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001692
Will Deacon7b7bf492011-05-19 13:21:14 +01001693config HAVE_ARCH_PFN_VALID
1694 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1695
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001696config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001697 bool "High Memory Support"
1698 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001699 help
1700 The address space of ARM processors is only 4 Gigabytes large
1701 and it has to accommodate user address space, kernel address
1702 space as well as some memory mapped IO. That means that, if you
1703 have a large amount of physical memory and/or IO, not all of the
1704 memory can be "permanently mapped" by the kernel. The physical
1705 memory that is not permanently mapped is called "high memory".
1706
1707 Depending on the selected kernel/user memory split, minimum
1708 vmalloc space and actual amount of RAM, you may not need this
1709 option which should result in a slightly faster kernel.
1710
1711 If unsure, say n.
1712
Russell King65cec8e2009-08-17 20:02:06 +01001713config HIGHPTE
1714 bool "Allocate 2nd-level pagetables from highmem"
1715 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001716
Jamie Iles1b8873a2010-02-02 20:25:44 +01001717config HW_PERF_EVENTS
1718 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001719 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001720 default y
1721 help
1722 Enable hardware performance counter support for perf events. If
1723 disabled, perf events will use software events only.
1724
Dave Hansen3f22ab22005-06-23 00:07:43 -07001725source "mm/Kconfig"
1726
Magnus Dammc1b2d972010-07-05 10:00:11 +01001727config FORCE_MAX_ZONEORDER
1728 int "Maximum zone order" if ARCH_SHMOBILE
1729 range 11 64 if ARCH_SHMOBILE
1730 default "9" if SA1111
1731 default "11"
1732 help
1733 The kernel memory allocator divides physically contiguous memory
1734 blocks into "zones", where each zone is a power of two number of
1735 pages. This option selects the largest power of two that the kernel
1736 keeps in the memory allocator. If you need to allocate very large
1737 blocks of physically contiguous memory, then you may need to
1738 increase this value.
1739
1740 This config option is actually maximum order plus one. For example,
1741 a value of 11 means that the largest free memory block is 2^10 pages.
1742
Linus Torvalds1da177e2005-04-16 15:20:36 -07001743config LEDS
1744 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001745 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001746 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001747 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1748 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001749 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001750 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001751 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001752 help
1753 If you say Y here, the LEDs on your machine will be used
1754 to provide useful information about your current system status.
1755
1756 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1757 be able to select which LEDs are active using the options below. If
1758 you are compiling a kernel for the EBSA-110 or the LART however, the
1759 red LED will simply flash regularly to indicate that the system is
1760 still functional. It is safe to say Y here if you have a CATS
1761 system, but the driver will do nothing.
1762
1763config LEDS_TIMER
1764 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001765 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1766 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001767 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001768 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001769 default y if ARCH_EBSA110
1770 help
1771 If you say Y here, one of the system LEDs (the green one on the
1772 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1773 will flash regularly to indicate that the system is still
1774 operational. This is mainly useful to kernel hackers who are
1775 debugging unstable kernels.
1776
1777 The LART uses the same LED for both Timer LED and CPU usage LED
1778 functions. You may choose to use both, but the Timer LED function
1779 will overrule the CPU usage LED.
1780
1781config LEDS_CPU
1782 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001783 !ARCH_OMAP) \
1784 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1785 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001786 depends on LEDS
1787 help
1788 If you say Y here, the red LED will be used to give a good real
1789 time indication of CPU usage, by lighting whenever the idle task
1790 is not currently executing.
1791
1792 The LART uses the same LED for both Timer LED and CPU usage LED
1793 functions. You may choose to use both, but the Timer LED function
1794 will overrule the CPU usage LED.
1795
1796config ALIGNMENT_TRAP
1797 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001798 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001799 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001800 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001801 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001802 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001803 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1804 address divisible by 4. On 32-bit ARM processors, these non-aligned
1805 fetch/store instructions will be emulated in software if you say
1806 here, which has a severe performance impact. This is necessary for
1807 correct operation of some network protocols. With an IP-only
1808 configuration it is safe to say N, otherwise say Y.
1809
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001810config UACCESS_WITH_MEMCPY
1811 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1812 depends on MMU && EXPERIMENTAL
1813 default y if CPU_FEROCEON
1814 help
1815 Implement faster copy_to_user and clear_user methods for CPU
1816 cores where a 8-word STM instruction give significantly higher
1817 memory write throughput than a sequence of individual 32bit stores.
1818
1819 A possible side effect is a slight increase in scheduling latency
1820 between threads sharing the same address space if they invoke
1821 such copy operations with large buffers.
1822
1823 However, if the CPU data cache is using a write-allocate mode,
1824 this option is unlikely to provide any performance gain.
1825
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001826config SECCOMP
1827 bool
1828 prompt "Enable seccomp to safely compute untrusted bytecode"
1829 ---help---
1830 This kernel feature is useful for number crunching applications
1831 that may need to compute untrusted bytecode during their
1832 execution. By using pipes or other transports made available to
1833 the process as file descriptors supporting the read/write
1834 syscalls, it's possible to isolate those applications in
1835 their own address space using seccomp. Once seccomp is
1836 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1837 and the task is only allowed to execute a few safe syscalls
1838 defined by each seccomp mode.
1839
Nicolas Pitrec743f382010-05-24 23:55:42 -04001840config CC_STACKPROTECTOR
1841 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001842 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001843 help
1844 This option turns on the -fstack-protector GCC feature. This
1845 feature puts, at the beginning of functions, a canary value on
1846 the stack just before the return address, and validates
1847 the value just before actually returning. Stack based buffer
1848 overflows (that need to overwrite this return address) now also
1849 overwrite the canary, which gets detected and the attack is then
1850 neutralized via a kernel panic.
1851 This feature requires gcc version 4.2 or above.
1852
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001853config DEPRECATED_PARAM_STRUCT
1854 bool "Provide old way to pass kernel parameters"
1855 help
1856 This was deprecated in 2001 and announced to live on for 5 years.
1857 Some old boot loaders still use this way.
1858
Linus Torvalds1da177e2005-04-16 15:20:36 -07001859endmenu
1860
1861menu "Boot options"
1862
Grant Likely9eb8f672011-04-28 14:27:20 -06001863config USE_OF
1864 bool "Flattened Device Tree support"
1865 select OF
1866 select OF_EARLY_FLATTREE
Grant Likely08a543a2011-07-26 03:19:06 -06001867 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001868 help
1869 Include support for flattened device tree machine descriptions.
1870
Linus Torvalds1da177e2005-04-16 15:20:36 -07001871# Compressed boot loader in ROM. Yes, we really want to ask about
1872# TEXT and BSS so we preserve their values in the config files.
1873config ZBOOT_ROM_TEXT
1874 hex "Compressed ROM boot loader base address"
1875 default "0"
1876 help
1877 The physical address at which the ROM-able zImage is to be
1878 placed in the target. Platforms which normally make use of
1879 ROM-able zImage formats normally set this to a suitable
1880 value in their defconfig file.
1881
1882 If ZBOOT_ROM is not enabled, this has no effect.
1883
1884config ZBOOT_ROM_BSS
1885 hex "Compressed ROM boot loader BSS address"
1886 default "0"
1887 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001888 The base address of an area of read/write memory in the target
1889 for the ROM-able zImage which must be available while the
1890 decompressor is running. It must be large enough to hold the
1891 entire decompressed kernel plus an additional 128 KiB.
1892 Platforms which normally make use of ROM-able zImage formats
1893 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001894
1895 If ZBOOT_ROM is not enabled, this has no effect.
1896
1897config ZBOOT_ROM
1898 bool "Compressed boot loader in ROM/flash"
1899 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1900 help
1901 Say Y here if you intend to execute your compressed kernel image
1902 (zImage) directly from ROM or flash. If unsure, say N.
1903
Simon Horman090ab3f2011-04-26 06:29:53 +01001904choice
1905 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1906 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1907 default ZBOOT_ROM_NONE
1908 help
1909 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001910 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001911 kernel image to an MMC or SD card and boot the kernel straight
1912 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001913 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001914 rest the kernel image to RAM.
1915
1916config ZBOOT_ROM_NONE
1917 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1918 help
1919 Do not load image from SD or MMC
1920
Simon Hormanf45b1142011-01-11 04:01:08 +01001921config ZBOOT_ROM_MMCIF
1922 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001923 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001924 Load image from MMCIF hardware block.
1925
1926config ZBOOT_ROM_SH_MOBILE_SDHI
1927 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1928 help
1929 Load image from SDHI hardware block
1930
1931endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001932
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001933config ARM_APPENDED_DTB
1934 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1935 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1936 help
1937 With this option, the boot code will look for a device tree binary
1938 (DTB) appended to zImage
1939 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1940
1941 This is meant as a backward compatibility convenience for those
1942 systems with a bootloader that can't be upgraded to accommodate
1943 the documented boot protocol using a device tree.
1944
1945 Beware that there is very little in terms of protection against
1946 this option being confused by leftover garbage in memory that might
1947 look like a DTB header after a reboot if no actual DTB is appended
1948 to zImage. Do not leave this option active in a production kernel
1949 if you don't intend to always append a DTB. Proper passing of the
1950 location into r2 of a bootloader provided DTB is always preferable
1951 to this option.
1952
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001953config ARM_ATAG_DTB_COMPAT
1954 bool "Supplement the appended DTB with traditional ATAG information"
1955 depends on ARM_APPENDED_DTB
1956 help
1957 Some old bootloaders can't be updated to a DTB capable one, yet
1958 they provide ATAGs with memory configuration, the ramdisk address,
1959 the kernel cmdline string, etc. Such information is dynamically
1960 provided by the bootloader and can't always be stored in a static
1961 DTB. To allow a device tree enabled kernel to be used with such
1962 bootloaders, this option allows zImage to extract the information
1963 from the ATAG list and store it at run time into the appended DTB.
1964
Linus Torvalds1da177e2005-04-16 15:20:36 -07001965config CMDLINE
1966 string "Default kernel command string"
1967 default ""
1968 help
1969 On some architectures (EBSA110 and CATS), there is currently no way
1970 for the boot loader to pass arguments to the kernel. For these
1971 architectures, you should supply some command-line options at build
1972 time by entering them here. As a minimum, you should specify the
1973 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1974
Victor Boivie4394c122011-05-04 17:07:55 +01001975choice
1976 prompt "Kernel command line type" if CMDLINE != ""
1977 default CMDLINE_FROM_BOOTLOADER
1978
1979config CMDLINE_FROM_BOOTLOADER
1980 bool "Use bootloader kernel arguments if available"
1981 help
1982 Uses the command-line options passed by the boot loader. If
1983 the boot loader doesn't provide any, the default kernel command
1984 string provided in CMDLINE will be used.
1985
1986config CMDLINE_EXTEND
1987 bool "Extend bootloader kernel arguments"
1988 help
1989 The command-line arguments provided by the boot loader will be
1990 appended to the default kernel command string.
1991
Alexander Holler92d20402010-02-16 19:04:53 +01001992config CMDLINE_FORCE
1993 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001994 help
1995 Always use the default kernel command string, even if the boot
1996 loader passes other arguments to the kernel.
1997 This is useful if you cannot or don't want to change the
1998 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001999endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002000
Linus Torvalds1da177e2005-04-16 15:20:36 -07002001config XIP_KERNEL
2002 bool "Kernel Execute-In-Place from ROM"
Catalin Marinas497b7e92011-11-22 17:30:32 +00002003 depends on !ZBOOT_ROM && !ARM_LPAE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002004 help
2005 Execute-In-Place allows the kernel to run from non-volatile storage
2006 directly addressable by the CPU, such as NOR flash. This saves RAM
2007 space since the text section of the kernel is not loaded from flash
2008 to RAM. Read-write sections, such as the data section and stack,
2009 are still copied to RAM. The XIP kernel is not compressed since
2010 it has to run directly from flash, so it will take more space to
2011 store it. The flash address used to link the kernel object files,
2012 and for storing it, is configuration dependent. Therefore, if you
2013 say Y here, you must know the proper physical address where to
2014 store the kernel image depending on your own flash memory usage.
2015
2016 Also note that the make target becomes "make xipImage" rather than
2017 "make zImage" or "make Image". The final kernel binary to put in
2018 ROM memory will be arch/arm/boot/xipImage.
2019
2020 If unsure, say N.
2021
2022config XIP_PHYS_ADDR
2023 hex "XIP Kernel Physical Location"
2024 depends on XIP_KERNEL
2025 default "0x00080000"
2026 help
2027 This is the physical address in your flash memory the kernel will
2028 be linked for and stored to. This address is dependent on your
2029 own flash usage.
2030
Richard Purdiec587e4a2007-02-06 21:29:00 +01002031config KEXEC
2032 bool "Kexec system call (EXPERIMENTAL)"
Will Deacon02b73e22011-06-06 15:49:23 +01002033 depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002034 help
2035 kexec is a system call that implements the ability to shutdown your
2036 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002037 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002038 you can start any kernel with it, not just Linux.
2039
2040 It is an ongoing process to be certain the hardware in a machine
2041 is properly shutdown, so do not be surprised if this code does not
2042 initially work for you. It may help to enable device hotplugging
2043 support.
2044
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002045config ATAGS_PROC
2046 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01002047 depends on KEXEC
2048 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002049 help
2050 Should the atags used to boot the kernel be exported in an "atags"
2051 file in procfs. Useful with kexec.
2052
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002053config CRASH_DUMP
2054 bool "Build kdump crash kernel (EXPERIMENTAL)"
2055 depends on EXPERIMENTAL
2056 help
2057 Generate crash dump after being started by kexec. This should
2058 be normally only set in special crash dump kernels which are
2059 loaded in the main kernel with kexec-tools into a specially
2060 reserved region and then later executed after a crash by
2061 kdump/kexec. The crash dump kernel must be compiled to a
2062 memory address not used by the main kernel
2063
2064 For more details see Documentation/kdump/kdump.txt
2065
Eric Miaoe69edc792010-07-05 15:56:50 +02002066config AUTO_ZRELADDR
2067 bool "Auto calculation of the decompressed kernel image address"
2068 depends on !ZBOOT_ROM && !ARCH_U300
2069 help
2070 ZRELADDR is the physical address where the decompressed kernel
2071 image will be placed. If AUTO_ZRELADDR is selected, the address
2072 will be determined at run-time by masking the current IP with
2073 0xf8000000. This assumes the zImage being placed in the first 128MB
2074 from start of memory.
2075
Linus Torvalds1da177e2005-04-16 15:20:36 -07002076endmenu
2077
Russell Kingac9d7ef2008-08-18 17:26:00 +01002078menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002079
Ben Dooks89c52ed2009-07-30 23:23:24 +01002080if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002081
2082source "drivers/cpufreq/Kconfig"
2083
Yong Shen64f102b2010-10-21 21:18:59 +08002084config CPU_FREQ_IMX
2085 tristate "CPUfreq driver for i.MX CPUs"
2086 depends on ARCH_MXC && CPU_FREQ
2087 help
2088 This enables the CPUfreq driver for i.MX CPUs.
2089
Linus Torvalds1da177e2005-04-16 15:20:36 -07002090config CPU_FREQ_SA1100
2091 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002092
2093config CPU_FREQ_SA1110
2094 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002095
2096config CPU_FREQ_INTEGRATOR
2097 tristate "CPUfreq driver for ARM Integrator CPUs"
2098 depends on ARCH_INTEGRATOR && CPU_FREQ
2099 default y
2100 help
2101 This enables the CPUfreq driver for ARM Integrator CPUs.
2102
2103 For details, take a look at <file:Documentation/cpu-freq>.
2104
2105 If in doubt, say Y.
2106
Russell King9e2697f2007-12-14 13:30:14 +00002107config CPU_FREQ_PXA
2108 bool
2109 depends on CPU_FREQ && ARCH_PXA && PXA25x
2110 default y
Arnd Bergmannca7d1562011-10-01 22:03:51 +02002111 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002112 select CPU_FREQ_DEFAULT_GOV_USERSPACE
2113
Ben Dooks9d56c022009-07-30 23:23:25 +01002114config CPU_FREQ_S3C
2115 bool
2116 help
2117 Internal configuration node for common cpufreq on Samsung SoC
2118
2119config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002120 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09002121 depends on ARCH_S3C24XX && CPU_FREQ && EXPERIMENTAL
Ben Dooks9d56c022009-07-30 23:23:25 +01002122 select CPU_FREQ_S3C
2123 help
2124 This enables the CPUfreq driver for the Samsung S3C24XX family
2125 of CPUs.
2126
2127 For details, take a look at <file:Documentation/cpu-freq>.
2128
2129 If in doubt, say N.
2130
2131config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002132 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002133 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2134 help
2135 Compile in support for changing the PLL frequency from the
2136 S3C24XX series CPUfreq driver. The PLL takes time to settle
2137 after a frequency change, so by default it is not enabled.
2138
2139 This also means that the PLL tables for the selected CPU(s) will
2140 be built which may increase the size of the kernel image.
2141
2142config CPU_FREQ_S3C24XX_DEBUG
2143 bool "Debug CPUfreq Samsung driver core"
2144 depends on CPU_FREQ_S3C24XX
2145 help
2146 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2147
2148config CPU_FREQ_S3C24XX_IODEBUG
2149 bool "Debug CPUfreq Samsung driver IO timing"
2150 depends on CPU_FREQ_S3C24XX
2151 help
2152 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2153
Ben Dookse6d197a2009-07-30 23:23:42 +01002154config CPU_FREQ_S3C24XX_DEBUGFS
2155 bool "Export debugfs for CPUFreq"
2156 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2157 help
2158 Export status information via debugfs.
2159
Linus Torvalds1da177e2005-04-16 15:20:36 -07002160endif
2161
Russell Kingac9d7ef2008-08-18 17:26:00 +01002162source "drivers/cpuidle/Kconfig"
2163
2164endmenu
2165
Linus Torvalds1da177e2005-04-16 15:20:36 -07002166menu "Floating point emulation"
2167
2168comment "At least one emulation must be selected"
2169
2170config FPE_NWFPE
2171 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002172 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002173 ---help---
2174 Say Y to include the NWFPE floating point emulator in the kernel.
2175 This is necessary to run most binaries. Linux does not currently
2176 support floating point hardware so you need to say Y here even if
2177 your machine has an FPA or floating point co-processor podule.
2178
2179 You may say N here if you are going to load the Acorn FPEmulator
2180 early in the bootup.
2181
2182config FPE_NWFPE_XP
2183 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002184 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002185 help
2186 Say Y to include 80-bit support in the kernel floating-point
2187 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2188 Note that gcc does not generate 80-bit operations by default,
2189 so in most cases this option only enlarges the size of the
2190 floating point emulator without any good reason.
2191
2192 You almost surely want to say N here.
2193
2194config FPE_FASTFPE
2195 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002196 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002197 ---help---
2198 Say Y here to include the FAST floating point emulator in the kernel.
2199 This is an experimental much faster emulator which now also has full
2200 precision for the mantissa. It does not support any exceptions.
2201 It is very simple, and approximately 3-6 times faster than NWFPE.
2202
2203 It should be sufficient for most programs. It may be not suitable
2204 for scientific calculations, but you have to check this for yourself.
2205 If you do not feel you need a faster FP emulation you should better
2206 choose NWFPE.
2207
2208config VFP
2209 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002210 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002211 help
2212 Say Y to include VFP support code in the kernel. This is needed
2213 if your hardware includes a VFP unit.
2214
2215 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2216 release notes and additional status information.
2217
2218 Say N if your target does not have VFP hardware.
2219
Catalin Marinas25ebee02007-09-25 15:22:24 +01002220config VFPv3
2221 bool
2222 depends on VFP
2223 default y if CPU_V7
2224
Catalin Marinasb5872db2008-01-10 19:16:17 +01002225config NEON
2226 bool "Advanced SIMD (NEON) Extension support"
2227 depends on VFPv3 && CPU_V7
2228 help
2229 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2230 Extension.
2231
Linus Torvalds1da177e2005-04-16 15:20:36 -07002232endmenu
2233
2234menu "Userspace binary formats"
2235
2236source "fs/Kconfig.binfmt"
2237
2238config ARTHUR
2239 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002240 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002241 help
2242 Say Y here to include the kernel code necessary if you want to run
2243 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2244 experimental; if this sounds frightening, say N and sleep in peace.
2245 You can also say M here to compile this support as a module (which
2246 will be called arthur).
2247
2248endmenu
2249
2250menu "Power management options"
2251
Russell Kingeceab4a2005-11-15 11:31:41 +00002252source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002253
Johannes Bergf4cb5702007-12-08 02:14:00 +01002254config ARCH_SUSPEND_POSSIBLE
Stephen Warren3d5e8af2012-04-13 15:30:07 -06002255 depends on !ARCH_S5PC100 && !ARCH_TEGRA
Russell King6a786182011-04-02 10:15:28 +01002256 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
Chao Xie3f5d0812012-05-07 11:23:58 +08002257 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002258 def_bool y
2259
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002260config ARM_CPU_SUSPEND
2261 def_bool PM_SLEEP
2262
Linus Torvalds1da177e2005-04-16 15:20:36 -07002263endmenu
2264
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002265source "net/Kconfig"
2266
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002267source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002268
2269source "fs/Kconfig"
2270
Linus Torvalds1da177e2005-04-16 15:20:36 -07002271source "arch/arm/Kconfig.debug"
2272
2273source "security/Kconfig"
2274
2275source "crypto/Kconfig"
2276
2277source "lib/Kconfig"