blob: ef4c66f13c154006c8394998e3cec3855891c53c [file] [log] [blame]
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
Russell Kingf4b8b312010-01-14 12:48:06 +0000296 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000297 select PLAT_VERSATILE_CLCD
Russell Kingc41b16f2011-01-19 15:32:15 +0000298 select PLAT_VERSATILE_FPGA_IRQ
Russell Kinge3887712010-01-14 13:30:16 +0000299 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100300 help
301 This enables support for ARM Ltd Versatile board.
302
Russell Kingceade892010-02-11 21:44:53 +0000303config ARCH_VEXPRESS
304 bool "ARM Ltd. Versatile Express family"
305 select ARCH_WANT_OPTIONAL_GPIOLIB
306 select ARM_AMBA
307 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100308 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900309 select HAVE_MACH_CLKDEV
Russell Kingceade892010-02-11 21:44:53 +0000310 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000311 select HAVE_CLK
Nick Bowler95c34f82011-01-21 15:51:06 +0100312 select HAVE_PATA_PLATFORM
Russell Kingceade892010-02-11 21:44:53 +0000313 select ICST
Russell Kingba81f502012-02-15 11:55:22 +0000314 select NO_IOPORT
Russell Kingceade892010-02-11 21:44:53 +0000315 select PLAT_VERSATILE
Russell King0fb44b92011-01-18 20:13:51 +0000316 select PLAT_VERSATILE_CLCD
Russell Kingceade892010-02-11 21:44:53 +0000317 help
318 This enables support for the ARM Ltd Versatile Express boards.
319
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100320config ARCH_AT91
321 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100322 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700323 select HAVE_CLK
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100324 select CLKDEV_LOOKUP
Nicolas Ferree2615012011-11-22 22:26:09 +0100325 select IRQ_DOMAIN
Rob Herring1ac02d72012-04-04 17:48:04 -0500326 select NEED_MACH_IO_H if PCCARD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100327 help
Nicolas Ferre929e9942012-03-15 12:21:12 +0100328 This enables support for systems based on Atmel
329 AT91RM9200 and AT91SAM9* processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100330
Russell Kingccf50e22010-03-15 19:03:06 +0000331config ARCH_BCMRING
332 bool "Broadcom BCMRING"
333 depends on MMU
334 select CPU_V6
335 select ARM_AMBA
Russell King82d63732011-05-12 13:43:39 +0100336 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100337 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000338 select GENERIC_CLOCKEVENTS
339 select ARCH_WANT_OPTIONAL_GPIOLIB
340 help
341 Support for Broadcom's BCMRing platform.
342
Rob Herring220e6cf2011-06-07 10:02:55 -0500343config ARCH_HIGHBANK
344 bool "Calxeda Highbank-based"
345 select ARCH_WANT_OPTIONAL_GPIOLIB
346 select ARM_AMBA
347 select ARM_GIC
348 select ARM_TIMER_SP804
Dave Martin22d80372011-12-12 16:17:34 +0000349 select CACHE_L2X0
Rob Herring220e6cf2011-06-07 10:02:55 -0500350 select CLKDEV_LOOKUP
351 select CPU_V7
352 select GENERIC_CLOCKEVENTS
353 select HAVE_ARM_SCU
Dave Martin3b556582011-12-07 15:38:04 +0000354 select HAVE_SMP
Rob Herringfdfa64a2012-01-03 14:44:31 -0600355 select SPARSE_IRQ
Rob Herring220e6cf2011-06-07 10:02:55 -0500356 select USE_OF
357 help
358 Support for the Calxeda Highbank SoC based boards.
359
Linus Torvalds1da177e2005-04-16 15:20:36 -0700360config ARCH_CLPS711X
Alexander Shiyan0e2fce52012-05-14 21:46:10 +0400361 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000362 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000363 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400364 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000365 help
Alexander Shiyan0e2fce52012-05-14 21:46:10 +0400366 Support for Cirrus Logic 711x/721x/731x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700367
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300368config ARCH_CNS3XXX
369 bool "Cavium Networks CNS3XXX family"
Imre Kaloz00d27112011-07-07 12:19:09 +0200370 select CPU_V6K
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300371 select GENERIC_CLOCKEVENTS
372 select ARM_GIC
Dave Martince5ea9f2011-11-29 15:56:19 +0000373 select MIGHT_HAVE_CACHE_L2X0
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100374 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400375 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300376 help
377 Support for Cavium Networks CNS3XXX platform.
378
Russell King788c9702009-04-26 14:21:59 +0100379config ARCH_GEMINI
380 bool "Cortina Systems Gemini"
381 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100382 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000383 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100384 help
385 Support for the Cortina Systems Gemini family SoCs
386
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200387config ARCH_PRIMA2
388 bool "CSR SiRFSoC PRIMA2 ARM Cortex A9 Platform"
389 select CPU_V7
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200390 select NO_IOPORT
391 select GENERIC_CLOCKEVENTS
392 select CLKDEV_LOOKUP
393 select GENERIC_IRQ_CHIP
Dave Martince5ea9f2011-11-29 15:56:19 +0000394 select MIGHT_HAVE_CACHE_L2X0
Barry Songcbd8d842012-05-15 10:35:46 +0800395 select PINCTRL
396 select PINCTRL_SIRF
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200397 select USE_OF
398 select ZONE_DMA
399 help
400 Support for CSR SiRFSoC ARM Cortex A9 Platform
401
Linus Torvalds1da177e2005-04-16 15:20:36 -0700402config ARCH_EBSA110
403 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000404 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100405 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000406 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000407 select ARCH_USES_GETTIMEOFFSET
Rob Herringc334bc12012-03-04 22:03:33 -0600408 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400409 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700410 help
411 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000412 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700413 Ethernet interface, two PCMCIA sockets, two serial ports and a
414 parallel port.
415
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000416config ARCH_EP93XX
417 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000418 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000419 select ARM_AMBA
420 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100421 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700422 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100423 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000424 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100425 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000426 help
427 This enables support for the Cirrus EP93xx series of CPUs.
428
Linus Torvalds1da177e2005-04-16 15:20:36 -0700429config ARCH_FOOTBRIDGE
430 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000431 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700432 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000433 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200434 select HAVE_IDE
Rob Herringc334bc12012-03-04 22:03:33 -0600435 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400436 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000437 help
438 Support for systems based on the DC21285 companion chip
439 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700440
Russell King788c9702009-04-26 14:21:59 +0100441config ARCH_MXC
442 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100443 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100444 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100445 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100446 select CLKSRC_MMIO
Shawn Guo8b6c44f2011-06-07 13:59:14 +0800447 select GENERIC_IRQ_CHIP
Sascha Hauerffa2ea32011-09-20 14:31:24 +0200448 select MULTI_IRQ_HANDLER
Russell King788c9702009-04-26 14:21:59 +0100449 help
450 Support for Freescale MXC/iMX-based family of processors
451
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800452config ARCH_MXS
453 bool "Freescale MXS-based"
454 select GENERIC_CLOCKEVENTS
455 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100456 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100457 select CLKSRC_MMIO
Shawn Guo26646812012-04-29 00:02:39 +0800458 select COMMON_CLK
Shawn Guo6abda3e2011-12-20 16:12:34 +0800459 select HAVE_CLK_PREPARE
Shawn Guoa0f5e362012-05-06 23:13:13 +0800460 select PINCTRL
Shawn Guo6c4d4ef2012-05-04 21:42:41 +0800461 select USE_OF
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800462 help
463 Support for Freescale MXS-based family of processors
464
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100465config ARCH_NETX
466 bool "Hilscher NetX based"
Russell King234b6ced2011-05-08 14:09:47 +0100467 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000468 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100469 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100470 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000471 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100472 This enables support for systems based on the Hilscher NetX Soc
473
474config ARCH_H720X
475 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000476 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100477 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000478 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100479 help
480 This enables support for systems based on the Hynix HMS720x
481
Russell King3b938be2007-05-12 11:25:44 +0100482config ARCH_IOP13XX
483 bool "IOP13xx-based"
484 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000485 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100486 select PLAT_IOP
487 select PCI
488 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100489 select VMSPLIT_1G
Rob Herringc334bc12012-03-04 22:03:33 -0600490 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400491 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600492 select NEED_RET_TO_USER
Russell King3b938be2007-05-12 11:25:44 +0100493 help
494 Support for Intel's IOP13XX (XScale) family of processors.
495
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100496config ARCH_IOP32X
497 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100498 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000499 select CPU_XSCALE
Rob Herringc334bc12012-03-04 22:03:33 -0600500 select NEED_MACH_IO_H
Rob Herring13a50452012-02-07 09:28:22 -0600501 select NEED_RET_TO_USER
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100502 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100503 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100504 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000505 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100506 Support for Intel's 80219 and IOP32X (XScale) family of
507 processors.
508
509config ARCH_IOP33X
510 bool "IOP33x-based"
511 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000512 select CPU_XSCALE
Rob Herringc334bc12012-03-04 22:03:33 -0600513 select NEED_MACH_IO_H
Rob Herring13a50452012-02-07 09:28:22 -0600514 select NEED_RET_TO_USER
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100515 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100516 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100517 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100518 help
519 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700520
Russell King3b938be2007-05-12 11:25:44 +0100521config ARCH_IXP4XX
522 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100523 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500524 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell King234b6ced2011-05-08 14:09:47 +0100525 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000526 select CPU_XSCALE
Richard Cochran9dde0ae2012-05-23 18:19:51 +0200527 select ARCH_REQUIRE_GPIOLIB
Russell King3b938be2007-05-12 11:25:44 +0100528 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100529 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600530 select NEED_MACH_IO_H
Russell King485bdde2008-10-17 14:00:43 +0100531 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100532 help
Russell King3b938be2007-05-12 11:25:44 +0100533 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100534
Saeed Bisharaedabd382009-08-06 15:12:43 +0300535config ARCH_DOVE
536 bool "Marvell Dove"
Konstantin Porotchkin7b769bb2011-04-07 13:49:41 +0300537 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300538 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300539 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300540 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600541 select NEED_MACH_IO_H
Saeed Bisharaedabd382009-08-06 15:12:43 +0300542 select PLAT_ORION
543 help
544 Support for the Marvell Dove SoC 88AP510
545
Saeed Bishara651c74c2008-06-22 22:45:06 +0200546config ARCH_KIRKWOOD
547 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000548 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200549 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700550 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200551 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600552 select NEED_MACH_IO_H
Saeed Bishara651c74c2008-06-22 22:45:06 +0200553 select PLAT_ORION
554 help
555 Support for the following Marvell Kirkwood series SoCs:
556 88F6180, 88F6192 and 88F6281.
557
Kevin Wells40805942010-07-27 08:49:04 -0700558config ARCH_LPC32XX
559 bool "NXP LPC32XX"
Russell King234b6ced2011-05-08 14:09:47 +0100560 select CLKSRC_MMIO
Kevin Wells40805942010-07-27 08:49:04 -0700561 select CPU_ARM926T
562 select ARCH_REQUIRE_GPIOLIB
563 select HAVE_IDE
564 select ARM_AMBA
565 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100566 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700567 select GENERIC_CLOCKEVENTS
Roland Stiggef5c42272012-04-22 12:01:19 +0200568 select USE_OF
Alexandre Pereira da Silvac49a1832012-07-20 14:01:51 +0200569 select HAVE_PWM
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
592 select PLAT_ORION
593 help
594 Support for the following Marvell Orion 5x series SoCs:
595 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
596 Orion-2 (5281), Orion-1-90 (6183).
597
598config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500599 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100600 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100601 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100602 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100603 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800604 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800605 select IRQ_DOMAIN
Russell King788c9702009-04-26 14:21:59 +0100606 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400607 select SPARSE_IRQ
Leo Yan3c7241b2011-08-15 11:09:52 +0800608 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100609 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500610 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100611
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100612config ARCH_KS8695
613 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000614 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100615 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000616 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400617 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100618 help
619 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
620 System-on-Chip devices.
621
Russell King788c9702009-04-26 14:21:59 +0100622config ARCH_W90X900
623 bool "Nuvoton W90X900 CPU"
624 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100625 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100626 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100627 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100628 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200629 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100630 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
631 At present, the w90x900 has been renamed nuc900, regarding
632 the ARM series product line, you can login the following
633 link address to know more.
634
635 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
636 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400637
Erik Gillingc5f80062010-01-21 16:53:02 -0800638config ARCH_TEGRA
639 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000640 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100641 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800642 select GENERIC_CLOCKEVENTS
643 select GENERIC_GPIO
644 select HAVE_CLK
Dave Martin3b556582011-12-07 15:38:04 +0000645 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000646 select MIGHT_HAVE_CACHE_L2X0
Rob Herringc334bc12012-03-04 22:03:33 -0600647 select NEED_MACH_IO_H if PCI
Colin Cross7056d422010-04-22 20:30:13 -0700648 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800649 help
650 This enables support for NVIDIA Tegra based systems (Tegra APX,
651 Tegra 6xx and Tegra 2 series).
652
Jamie Ilesaf756552011-07-25 17:36:42 +0100653config ARCH_PICOXCELL
654 bool "Picochip picoXcell"
655 select ARCH_REQUIRE_GPIOLIB
656 select ARM_PATCH_PHYS_VIRT
657 select ARM_VIC
658 select CPU_V6K
659 select DW_APB_TIMER
660 select GENERIC_CLOCKEVENTS
661 select GENERIC_GPIO
Jamie Ilesaf756552011-07-25 17:36:42 +0100662 select HAVE_TCM
663 select NO_IOPORT
Jamie Iles98e27a52011-12-12 20:17:37 +0000664 select SPARSE_IRQ
Jamie Ilesaf756552011-07-25 17:36:42 +0100665 select USE_OF
666 help
667 This enables support for systems based on the Picochip picoXcell
668 family of Femtocell devices. The picoxcell support requires device tree
669 for all boards.
670
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100671config ARCH_PNX4008
672 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000673 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100674 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000675 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100676 help
677 This enables support for Philips PNX4008 mobile platform.
678
Linus Torvalds1da177e2005-04-16 15:20:36 -0700679config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700680 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100681 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500682 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100683 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100684 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100685 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700686 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100687 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800688 select GPIO_PXA
Eric Miaobd5ce432009-01-20 12:06:01 +0800689 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800690 select SPARSE_IRQ
Eric Miao4e234cc2011-04-04 15:06:33 +0800691 select AUTO_ZRELADDR
Eric Miao8a97ae22011-05-18 21:30:04 +0800692 select MULTI_IRQ_HANDLER
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +0200693 select ARM_CPU_SUSPEND if PM
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200694 select HAVE_IDE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000695 help
eric miao2c8086a2007-09-11 19:13:17 -0700696 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700697
Russell King788c9702009-04-26 14:21:59 +0100698config ARCH_MSM
699 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500700 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800701 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700702 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800703 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800704 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800705 Support for Qualcomm MSM/QSD based systems. This runs on the
706 apps processor of the MSM/QSD and depends on a shared memory
707 interface to the modem processor which runs the baseband
708 stack and controls some vital subsystems
709 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800710
Magnus Dammc793c1b2010-02-05 11:14:49 +0000711config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900712 bool "Renesas SH-Mobile / R-Mobile"
713 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900714 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900715 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000716 select HAVE_SMP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900717 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000718 select MIGHT_HAVE_CACHE_L2X0
Paul Mundt6d72ad32010-11-16 16:10:20 +0900719 select NO_IOPORT
720 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000721 select MULTI_IRQ_HANDLER
Rafael J. Wysockie3e01092011-07-01 22:13:56 +0200722 select PM_GENERIC_DOMAINS if PM
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400723 select NEED_MACH_MEMORY_H
Magnus Dammc793c1b2010-02-05 11:14:49 +0000724 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900725 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000726
Linus Torvalds1da177e2005-04-16 15:20:36 -0700727config ARCH_RPC
728 bool "RiscPC"
729 select ARCH_ACORN
730 select FIQ
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100731 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100732 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000733 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000734 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100735 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000736 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200737 select HAVE_IDE
Rob Herringc334bc12012-03-04 22:03:33 -0600738 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400739 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700740 help
741 On the Acorn Risc-PC, Linux can support the internal IDE disk and
742 CD-ROM interface, serial and parallel port, and the floppy drive.
743
744config ARCH_SA1100
745 bool "SA1100-based"
Russell King234b6ced2011-05-08 14:09:47 +0100746 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000747 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100748 select ISA
Russell King05944d72006-11-30 20:43:51 +0000749 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500750 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100751 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000752 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100753 select GENERIC_CLOCKEVENTS
Jett.Zhou4a8f8342011-11-30 14:32:36 +0800754 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700755 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200756 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400757 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100758 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000759 help
760 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700761
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900762config ARCH_S3C24XX
763 bool "Samsung S3C24XX SoCs"
David Brownell0a938b92007-03-05 00:30:18 -0800764 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100765 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700766 select HAVE_CLK
Thomas Abrahame83626f2011-06-14 19:12:26 +0900767 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000768 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900769 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900770 select HAVE_S3C_RTC if RTC_CLASS
771 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Rob Herringc334bc12012-03-04 22:03:33 -0600772 select NEED_MACH_IO_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700773 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900774 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
775 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
776 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
777 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900778
Ben Dooksa08ab632008-10-21 14:06:39 +0100779config ARCH_S3C64XX
780 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000781 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900782 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900783 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100784 select HAVE_CLK
Mark Brown67003972011-10-11 08:57:11 +0900785 select HAVE_TCM
Thomas Abraham226e85f2011-06-14 19:12:26 +0900786 select CLKDEV_LOOKUP
Ben Dooks89f0ce72010-01-26 15:49:15 +0900787 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000788 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100789 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900790 select ARCH_REQUIRE_GPIOLIB
791 select SAMSUNG_CLKSRC
792 select SAMSUNG_IRQ_VIC_TIMER
Ben Dooks89f0ce72010-01-26 15:49:15 +0900793 select S3C_GPIO_TRACK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900794 select S3C_DEV_NAND
795 select USB_ARCH_HAS_OHCI
796 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900797 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900798 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100799 help
800 Samsung S3C64XX series based systems
801
Kukjin Kim49b7a492010-09-07 15:47:18 +0900802config ARCH_S5P64X0
803 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900804 select CPU_V6
805 select GENERIC_GPIO
806 select HAVE_CLK
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900807 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900808 select CLKSRC_MMIO
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900809 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900810 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900811 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900812 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900813 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900814 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
815 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900816
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200817config ARCH_S5PC100
818 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900819 select GENERIC_GPIO
820 select HAVE_CLK
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900821 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900822 select CPU_V7
Ben Dooks925c68c2010-05-20 20:48:28 +0900823 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900824 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900825 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900826 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900827 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200828 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900829
Kukjin Kim170f4e42010-02-24 16:40:44 +0900830config ARCH_S5PV210
831 bool "Samsung S5PV210/S5PC110"
832 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900833 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900834 select ARCH_HAS_HOLES_MEMORYMODEL
Kukjin Kim170f4e42010-02-24 16:40:44 +0900835 select GENERIC_GPIO
836 select HAVE_CLK
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900837 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900838 select CLKSRC_MMIO
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900839 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900840 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900841 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900842 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900843 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400844 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900845 help
846 Samsung S5PV210/S5PC110 series based systems
847
Kukjin Kim83014572011-11-06 13:54:56 +0900848config ARCH_EXYNOS
849 bool "SAMSUNG EXYNOS"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900850 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900851 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900852 select ARCH_HAS_HOLES_MEMORYMODEL
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900853 select GENERIC_GPIO
854 select HAVE_CLK
Thomas Abrahambadc4f22011-06-14 19:12:27 +0900855 select CLKDEV_LOOKUP
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900856 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900857 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900858 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900859 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900860 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400861 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900862 help
Kukjin Kim83014572011-11-06 13:54:56 +0900863 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900864
Linus Torvalds1da177e2005-04-16 15:20:36 -0700865config ARCH_SHARK
866 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000867 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100868 select ISA
869 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100870 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100871 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000872 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400873 select NEED_MACH_MEMORY_H
Rob Herringc334bc12012-03-04 22:03:33 -0600874 select NEED_MACH_IO_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000875 help
876 Support for the StrongARM based Digital DNARD machine, also known
877 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700878
Linus Walleijd98aac72009-04-27 10:21:46 +0100879config ARCH_U300
880 bool "ST-Ericsson U300 Series"
881 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100882 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100883 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100884 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100885 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200886 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100887 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100888 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100889 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900890 select HAVE_MACH_CLKDEV
Linus Walleijd98aac72009-04-27 10:21:46 +0100891 select GENERIC_GPIO
Linus Walleijcc890cd2011-09-08 09:04:51 +0100892 select ARCH_REQUIRE_GPIOLIB
Linus Walleijd98aac72009-04-27 10:21:46 +0100893 help
894 Support for ST-Ericsson U300 series mobile platforms.
895
Russell Kingccf50e22010-03-15 19:03:06 +0000896config ARCH_U8500
897 bool "ST-Ericsson U8500 Series"
Arnd Bergmann67ae14f2012-02-25 12:48:49 -0700898 depends on MMU
Russell Kingccf50e22010-03-15 19:03:06 +0000899 select CPU_V7
900 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000901 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100902 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100903 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100904 select ARCH_HAS_CPUFREQ
Dave Martin3b556582011-12-07 15:38:04 +0000905 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000906 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000907 help
908 Support for ST-Ericsson's Ux500 architecture
909
910config ARCH_NOMADIK
911 bool "STMicroelectronics Nomadik"
912 select ARM_AMBA
913 select ARM_VIC
914 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100915 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000916 select GENERIC_CLOCKEVENTS
Arnd Bergmann0fa7be42012-05-15 11:24:34 +0000917 select PINCTRL
Dave Martince5ea9f2011-11-29 15:56:19 +0000918 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000919 select ARCH_REQUIRE_GPIOLIB
920 help
921 Support for the Nomadik platform by ST-Ericsson
922
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100923config ARCH_DAVINCI
924 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100925 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700926 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100927 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700928 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100929 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700930 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100931 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530932 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100933 help
934 Support for TI's DaVinci platform.
935
Russell King3b938be2007-05-12 11:25:44 +0100936config ARCH_OMAP
937 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700938 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700939 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100940 select ARCH_HAS_CPUFREQ
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700941 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700942 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800943 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100944 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200945 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100946
viresh kumarcee37e52010-04-01 12:31:05 +0100947config PLAT_SPEAR
948 bool "ST SPEAr"
949 select ARM_AMBA
950 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100951 select CLKDEV_LOOKUP
Viresh Kumar5df33a62012-04-10 09:02:35 +0530952 select COMMON_CLK
Russell Kingd6e15d72011-05-08 17:10:14 +0100953 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100954 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100955 select HAVE_CLK
956 help
957 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
958
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100959config ARCH_VT8500
960 bool "VIA/WonderMedia 85xx"
961 select CPU_ARM926T
962 select GENERIC_GPIO
963 select ARCH_HAS_CPUFREQ
964 select GENERIC_CLOCKEVENTS
965 select ARCH_REQUIRE_GPIOLIB
966 select HAVE_PWM
967 help
968 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +0800969
John Linnb85a3ef2011-06-20 11:47:27 -0600970config ARCH_ZYNQ
971 bool "Xilinx Zynq ARM Cortex A9 Platform"
Binghua Duan02c981c2011-07-08 17:40:12 +0800972 select CPU_V7
Binghua Duan02c981c2011-07-08 17:40:12 +0800973 select GENERIC_CLOCKEVENTS
974 select CLKDEV_LOOKUP
John Linnb85a3ef2011-06-20 11:47:27 -0600975 select ARM_GIC
976 select ARM_AMBA
977 select ICST
Dave Martince5ea9f2011-11-29 15:56:19 +0000978 select MIGHT_HAVE_CACHE_L2X0
Binghua Duan02c981c2011-07-08 17:40:12 +0800979 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +0800980 help
John Linnb85a3ef2011-06-20 11:47:27 -0600981 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -0700982endchoice
983
Russell Kingccf50e22010-03-15 19:03:06 +0000984#
985# This is sorted alphabetically by mach-* pathname. However, plat-*
986# Kconfigs may be included either alphabetically (according to the
987# plat- suffix) or along side the corresponding mach-* source.
988#
Russell King95b8f202010-01-14 11:43:54 +0000989source "arch/arm/mach-at91/Kconfig"
990
991source "arch/arm/mach-bcmring/Kconfig"
992
Linus Torvalds1da177e2005-04-16 15:20:36 -0700993source "arch/arm/mach-clps711x/Kconfig"
994
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300995source "arch/arm/mach-cns3xxx/Kconfig"
996
Russell King95b8f202010-01-14 11:43:54 +0000997source "arch/arm/mach-davinci/Kconfig"
998
999source "arch/arm/mach-dove/Kconfig"
1000
Lennert Buytenheke7736d42006-03-20 17:10:13 +00001001source "arch/arm/mach-ep93xx/Kconfig"
1002
Linus Torvalds1da177e2005-04-16 15:20:36 -07001003source "arch/arm/mach-footbridge/Kconfig"
1004
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001005source "arch/arm/mach-gemini/Kconfig"
1006
Russell King95b8f202010-01-14 11:43:54 +00001007source "arch/arm/mach-h720x/Kconfig"
1008
Linus Torvalds1da177e2005-04-16 15:20:36 -07001009source "arch/arm/mach-integrator/Kconfig"
1010
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001011source "arch/arm/mach-iop32x/Kconfig"
1012
1013source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001014
Dan Williams285f5fa2006-12-07 02:59:39 +01001015source "arch/arm/mach-iop13xx/Kconfig"
1016
Linus Torvalds1da177e2005-04-16 15:20:36 -07001017source "arch/arm/mach-ixp4xx/Kconfig"
1018
Russell King95b8f202010-01-14 11:43:54 +00001019source "arch/arm/mach-kirkwood/Kconfig"
1020
1021source "arch/arm/mach-ks8695/Kconfig"
1022
Russell King95b8f202010-01-14 11:43:54 +00001023source "arch/arm/mach-msm/Kconfig"
1024
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001025source "arch/arm/mach-mv78xx0/Kconfig"
1026
Russell King95b8f202010-01-14 11:43:54 +00001027source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001028
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001029source "arch/arm/mach-mxs/Kconfig"
1030
Russell King95b8f202010-01-14 11:43:54 +00001031source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001032
Russell King95b8f202010-01-14 11:43:54 +00001033source "arch/arm/mach-nomadik/Kconfig"
1034source "arch/arm/plat-nomadik/Kconfig"
1035
Tony Lindgrend48af152005-07-10 19:58:17 +01001036source "arch/arm/plat-omap/Kconfig"
1037
1038source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001039
Tony Lindgren1dbae812005-11-10 14:26:51 +00001040source "arch/arm/mach-omap2/Kconfig"
1041
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001042source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001043
Russell King95b8f202010-01-14 11:43:54 +00001044source "arch/arm/mach-pxa/Kconfig"
1045source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001046
Russell King95b8f202010-01-14 11:43:54 +00001047source "arch/arm/mach-mmp/Kconfig"
1048
1049source "arch/arm/mach-realview/Kconfig"
1050
1051source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001052
Ben Dookscf383672009-11-10 00:14:58 +00001053source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001054source "arch/arm/plat-s3c24xx/Kconfig"
1055
viresh kumarcee37e52010-04-01 12:31:05 +01001056source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001057
Kukjin Kim85fd6d62012-02-06 09:38:19 +09001058source "arch/arm/mach-s3c24xx/Kconfig"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001059if ARCH_S3C24XX
Ben Dooksa21765a2007-02-11 18:31:01 +01001060source "arch/arm/mach-s3c2412/Kconfig"
1061source "arch/arm/mach-s3c2440/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001062endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001063
Ben Dooksa08ab632008-10-21 14:06:39 +01001064if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001065source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001066endif
1067
Kukjin Kim49b7a492010-09-07 15:47:18 +09001068source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001069
Byungho Min5a7652f2009-06-23 21:39:42 +09001070source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001071
Kukjin Kim170f4e42010-02-24 16:40:44 +09001072source "arch/arm/mach-s5pv210/Kconfig"
1073
Kukjin Kim83014572011-11-06 13:54:56 +09001074source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001075
Russell King882d01f2010-03-02 23:40:15 +00001076source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001077
Erik Gillingc5f80062010-01-21 16:53:02 -08001078source "arch/arm/mach-tegra/Kconfig"
1079
Russell King95b8f202010-01-14 11:43:54 +00001080source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001081
Russell King95b8f202010-01-14 11:43:54 +00001082source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001083
1084source "arch/arm/mach-versatile/Kconfig"
1085
Russell Kingceade892010-02-11 21:44:53 +00001086source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001087source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001088
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001089source "arch/arm/mach-vt8500/Kconfig"
1090
wanzongshun7ec80dd2008-12-03 03:55:38 +01001091source "arch/arm/mach-w90x900/Kconfig"
1092
Linus Torvalds1da177e2005-04-16 15:20:36 -07001093# Definitions to make life easier
1094config ARCH_ACORN
1095 bool
1096
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001097config PLAT_IOP
1098 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001099 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001100
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001101config PLAT_ORION
1102 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001103 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001104 select GENERIC_IRQ_CHIP
Andrew Lunn2f129bf2011-12-15 08:15:07 +01001105 select COMMON_CLK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001106
Eric Miaobd5ce432009-01-20 12:06:01 +08001107config PLAT_PXA
1108 bool
1109
Russell Kingf4b8b312010-01-14 12:48:06 +00001110config PLAT_VERSATILE
1111 bool
1112
Russell Kinge3887712010-01-14 13:30:16 +00001113config ARM_TIMER_SP804
1114 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001115 select CLKSRC_MMIO
Rob Herringa7bf6162011-12-12 15:29:08 -06001116 select HAVE_SCHED_CLOCK
Russell Kinge3887712010-01-14 13:30:16 +00001117
Linus Torvalds1da177e2005-04-16 15:20:36 -07001118source arch/arm/mm/Kconfig
1119
Russell King958cab02011-12-11 10:04:00 +00001120config ARM_NR_BANKS
1121 int
1122 default 16 if ARCH_EP93XX
1123 default 8
1124
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001125config IWMMXT
1126 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001127 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1128 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001129 help
1130 Enable support for iWMMXt context switching at run time if
1131 running on a CPU that supports it.
1132
Linus Torvalds1da177e2005-04-16 15:20:36 -07001133config XSCALE_PMU
1134 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001135 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001136 default y
1137
Jamie Iles0f4f0672010-02-02 20:23:15 +01001138config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001139 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001140 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001141 default y
1142 bool
1143
eric miao52108642010-12-13 09:42:34 +01001144config MULTI_IRQ_HANDLER
1145 bool
1146 help
1147 Allow each machine to specify it's own IRQ handler at run time.
1148
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001149if !MMU
1150source "arch/arm/Kconfig-nommu"
1151endif
1152
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001153config ARM_ERRATA_326103
1154 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1155 depends on CPU_V6
1156 help
1157 Executing a SWP instruction to read-only memory does not set bit 11
1158 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1159 treat the access as a read, preventing a COW from occurring and
1160 causing the faulting task to livelock.
1161
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001162config ARM_ERRATA_411920
1163 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001164 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001165 help
1166 Invalidation of the Instruction Cache operation can
1167 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1168 It does not affect the MPCore. This option enables the ARM Ltd.
1169 recommended workaround.
1170
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001171config ARM_ERRATA_430973
1172 bool "ARM errata: Stale prediction on replaced interworking branch"
1173 depends on CPU_V7
1174 help
1175 This option enables the workaround for the 430973 Cortex-A8
1176 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1177 interworking branch is replaced with another code sequence at the
1178 same virtual address, whether due to self-modifying code or virtual
1179 to physical address re-mapping, Cortex-A8 does not recover from the
1180 stale interworking branch prediction. This results in Cortex-A8
1181 executing the new code sequence in the incorrect ARM or Thumb state.
1182 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1183 and also flushes the branch target cache at every context switch.
1184 Note that setting specific bits in the ACTLR register may not be
1185 available in non-secure mode.
1186
Catalin Marinas855c5512009-04-30 17:06:15 +01001187config ARM_ERRATA_458693
1188 bool "ARM errata: Processor deadlock when a false hazard is created"
1189 depends on CPU_V7
1190 help
1191 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1192 erratum. For very specific sequences of memory operations, it is
1193 possible for a hazard condition intended for a cache line to instead
1194 be incorrectly associated with a different cache line. This false
1195 hazard might then cause a processor deadlock. The workaround enables
1196 the L1 caching of the NEON accesses and disables the PLD instruction
1197 in the ACTLR register. Note that setting specific bits in the ACTLR
1198 register may not be available in non-secure mode.
1199
Catalin Marinas0516e462009-04-30 17:06:20 +01001200config ARM_ERRATA_460075
1201 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1202 depends on CPU_V7
1203 help
1204 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1205 erratum. Any asynchronous access to the L2 cache may encounter a
1206 situation in which recent store transactions to the L2 cache are lost
1207 and overwritten with stale memory contents from external memory. The
1208 workaround disables the write-allocate mode for the L2 cache via the
1209 ACTLR register. Note that setting specific bits in the ACTLR register
1210 may not be available in non-secure mode.
1211
Will Deacon9f050272010-09-14 09:51:43 +01001212config ARM_ERRATA_742230
1213 bool "ARM errata: DMB operation may be faulty"
1214 depends on CPU_V7 && SMP
1215 help
1216 This option enables the workaround for the 742230 Cortex-A9
1217 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1218 between two write operations may not ensure the correct visibility
1219 ordering of the two writes. This workaround sets a specific bit in
1220 the diagnostic register of the Cortex-A9 which causes the DMB
1221 instruction to behave as a DSB, ensuring the correct behaviour of
1222 the two writes.
1223
Will Deacona672e992010-09-14 09:53:02 +01001224config ARM_ERRATA_742231
1225 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1226 depends on CPU_V7 && SMP
1227 help
1228 This option enables the workaround for the 742231 Cortex-A9
1229 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1230 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1231 accessing some data located in the same cache line, may get corrupted
1232 data due to bad handling of the address hazard when the line gets
1233 replaced from one of the CPUs at the same time as another CPU is
1234 accessing it. This workaround sets specific bits in the diagnostic
1235 register of the Cortex-A9 which reduces the linefill issuing
1236 capabilities of the processor.
1237
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001238config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001239 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001240 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001241 help
1242 The PL310 L2 cache controller implements three types of Clean &
1243 Invalidate maintenance operations: by Physical Address
1244 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1245 They are architecturally defined to behave as the execution of a
1246 clean operation followed immediately by an invalidate operation,
1247 both performing to the same memory location. This functionality
1248 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001249 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001250
1251config ARM_ERRATA_720789
1252 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001253 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001254 help
1255 This option enables the workaround for the 720789 Cortex-A9 (prior to
1256 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1257 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1258 As a consequence of this erratum, some TLB entries which should be
1259 invalidated are not, resulting in an incoherency in the system page
1260 tables. The workaround changes the TLB flushing routines to invalidate
1261 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001262
Russell King1f0090a2011-03-16 23:35:25 +00001263config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001264 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001265 depends on CACHE_L2X0
1266 help
1267 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1268 operation (offset 0x7FC). This operation runs in background so that
1269 PL310 can handle normal accesses while it is in progress. Under very
1270 rare circumstances, due to this erratum, write data can be lost when
1271 PL310 treats a cacheable write transaction during a Clean &
1272 Invalidate by Way operation.
1273
Will Deacon475d92f2010-09-28 14:02:02 +01001274config ARM_ERRATA_743622
1275 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1276 depends on CPU_V7
1277 help
1278 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001279 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001280 optimisation in the Cortex-A9 Store Buffer may lead to data
1281 corruption. This workaround sets a specific bit in the diagnostic
1282 register of the Cortex-A9 which disables the Store Buffer
1283 optimisation, preventing the defect from occurring. This has no
1284 visible impact on the overall performance or power consumption of the
1285 processor.
1286
Will Deacon9a27c272011-02-18 16:36:35 +01001287config ARM_ERRATA_751472
1288 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001289 depends on CPU_V7
Will Deacon9a27c272011-02-18 16:36:35 +01001290 help
1291 This option enables the workaround for the 751472 Cortex-A9 (prior
1292 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1293 completion of a following broadcasted operation if the second
1294 operation is received by a CPU before the ICIALLUIS has completed,
1295 potentially leading to corrupted entries in the cache or TLB.
1296
Will Deaconfa0ce402011-11-14 17:24:57 +01001297config PL310_ERRATA_753970
1298 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001299 depends on CACHE_PL310
1300 help
1301 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1302
1303 Under some condition the effect of cache sync operation on
1304 the store buffer still remains when the operation completes.
1305 This means that the store buffer is always asked to drain and
1306 this prevents it from merging any further writes. The workaround
1307 is to replace the normal offset of cache sync operation (0x730)
1308 by another offset targeting an unmapped PL310 register 0x740.
1309 This has the same effect as the cache sync operation: store buffer
1310 drain and waiting for all buffers empty.
1311
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001312config ARM_ERRATA_754322
1313 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1314 depends on CPU_V7
1315 help
1316 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1317 r3p*) erratum. A speculative memory access may cause a page table walk
1318 which starts prior to an ASID switch but completes afterwards. This
1319 can populate the micro-TLB with a stale entry which may be hit with
1320 the new ASID. This workaround places two dsb instructions in the mm
1321 switching code so that no page table walks can cross the ASID switch.
1322
Will Deacon5dab26af2011-03-04 12:38:54 +01001323config ARM_ERRATA_754327
1324 bool "ARM errata: no automatic Store Buffer drain"
1325 depends on CPU_V7 && SMP
1326 help
1327 This option enables the workaround for the 754327 Cortex-A9 (prior to
1328 r2p0) erratum. The Store Buffer does not have any automatic draining
1329 mechanism and therefore a livelock may occur if an external agent
1330 continuously polls a memory location waiting to observe an update.
1331 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1332 written polling loops from denying visibility of updates to memory.
1333
Catalin Marinas145e10e2011-08-15 11:04:41 +01001334config ARM_ERRATA_364296
1335 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1336 depends on CPU_V6 && !SMP
1337 help
1338 This options enables the workaround for the 364296 ARM1136
1339 r0p2 erratum (possible cache data corruption with
1340 hit-under-miss enabled). It sets the undocumented bit 31 in
1341 the auxiliary control register and the FI bit in the control
1342 register, thus disabling hit-under-miss without putting the
1343 processor into full low interrupt latency mode. ARM11MPCore
1344 is not affected.
1345
Will Deaconf630c1b2011-09-15 11:45:15 +01001346config ARM_ERRATA_764369
1347 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1348 depends on CPU_V7 && SMP
1349 help
1350 This option enables the workaround for erratum 764369
1351 affecting Cortex-A9 MPCore with two or more processors (all
1352 current revisions). Under certain timing circumstances, a data
1353 cache line maintenance operation by MVA targeting an Inner
1354 Shareable memory region may fail to proceed up to either the
1355 Point of Coherency or to the Point of Unification of the
1356 system. This workaround adds a DSB instruction before the
1357 relevant cache maintenance functions and sets a specific bit
1358 in the diagnostic control register of the SCU.
1359
Will Deacon11ed0ba2011-11-14 17:24:58 +01001360config PL310_ERRATA_769419
1361 bool "PL310 errata: no automatic Store Buffer drain"
1362 depends on CACHE_L2X0
1363 help
1364 On revisions of the PL310 prior to r3p2, the Store Buffer does
1365 not automatically drain. This can cause normal, non-cacheable
1366 writes to be retained when the memory system is idle, leading
1367 to suboptimal I/O performance for drivers using coherent DMA.
1368 This option adds a write barrier to the cpu_idle loop so that,
1369 on systems with an outer cache, the store buffer is drained
1370 explicitly.
1371
Linus Torvalds1da177e2005-04-16 15:20:36 -07001372endmenu
1373
1374source "arch/arm/common/Kconfig"
1375
Linus Torvalds1da177e2005-04-16 15:20:36 -07001376menu "Bus support"
1377
1378config ARM_AMBA
1379 bool
1380
1381config ISA
1382 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001383 help
1384 Find out whether you have ISA slots on your motherboard. ISA is the
1385 name of a bus system, i.e. the way the CPU talks to the other stuff
1386 inside your box. Other bus systems are PCI, EISA, MicroChannel
1387 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1388 newer boards don't support it. If you have ISA, say Y, otherwise N.
1389
Russell King065909b2006-01-04 15:44:16 +00001390# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001391config ISA_DMA
1392 bool
Russell King065909b2006-01-04 15:44:16 +00001393 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001394
Russell King065909b2006-01-04 15:44:16 +00001395# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001396config ISA_DMA_API
1397 bool
Al Viro5cae8412005-05-04 05:39:22 +01001398
Linus Torvalds1da177e2005-04-16 15:20:36 -07001399config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001400 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001401 help
1402 Find out whether you have a PCI motherboard. PCI is the name of a
1403 bus system, i.e. the way the CPU talks to the other stuff inside
1404 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1405 VESA. If you have PCI, say Y, otherwise N.
1406
Anton Vorontsov52882172010-04-19 13:20:49 +01001407config PCI_DOMAINS
1408 bool
1409 depends on PCI
1410
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001411config PCI_NANOENGINE
1412 bool "BSE nanoEngine PCI support"
1413 depends on SA1100_NANOENGINE
1414 help
1415 Enable PCI on the BSE nanoEngine board.
1416
Matthew Wilcox36e23592007-07-10 10:54:40 -06001417config PCI_SYSCALL
1418 def_bool PCI
1419
Linus Torvalds1da177e2005-04-16 15:20:36 -07001420# Select the host bridge type
1421config PCI_HOST_VIA82C505
1422 bool
1423 depends on PCI && ARCH_SHARK
1424 default y
1425
Mike Rapoporta0113a92007-11-25 08:55:34 +01001426config PCI_HOST_ITE8152
1427 bool
1428 depends on PCI && MACH_ARMCORE
1429 default y
1430 select DMABOUNCE
1431
Linus Torvalds1da177e2005-04-16 15:20:36 -07001432source "drivers/pci/Kconfig"
1433
1434source "drivers/pcmcia/Kconfig"
1435
1436endmenu
1437
1438menu "Kernel Features"
1439
Dave Martin3b556582011-12-07 15:38:04 +00001440config HAVE_SMP
1441 bool
1442 help
1443 This option should be selected by machines which have an SMP-
1444 capable CPU.
1445
1446 The only effect of this option is to make the SMP-related
1447 options available to the user for configuration.
1448
Linus Torvalds1da177e2005-04-16 15:20:36 -07001449config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001450 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001451 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001452 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001453 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001454 depends on MMU
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001455 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001456 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001457 help
1458 This enables support for systems with more than one CPU. If you have
1459 a system with only one CPU, like most personal computers, say N. If
1460 you have a system with more than one CPU, say Y.
1461
1462 If you say N here, the kernel will run on single and multiprocessor
1463 machines, but will use only one CPU of a multiprocessor machine. If
1464 you say Y here, the kernel will run on many, but not all, single
1465 processor machines. On a single processor machine, the kernel will
1466 run faster if you say N here.
1467
Paul Bolle395cf962011-08-15 02:02:26 +02001468 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001469 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001470 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001471
1472 If you don't know what to do here, say N.
1473
Russell Kingf00ec482010-09-04 10:47:48 +01001474config SMP_ON_UP
1475 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1476 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001477 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001478 default y
1479 help
1480 SMP kernels contain instructions which fail on non-SMP processors.
1481 Enabling this option allows the kernel to modify itself to make
1482 these instructions safe. Disabling it allows about 1K of space
1483 savings.
1484
1485 If you don't know what to do here, say Y.
1486
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001487config ARM_CPU_TOPOLOGY
1488 bool "Support cpu topology definition"
1489 depends on SMP && CPU_V7
1490 default y
1491 help
1492 Support ARM cpu topology definition. The MPIDR register defines
1493 affinity between processors which is then used to describe the cpu
1494 topology of an ARM System.
1495
1496config SCHED_MC
1497 bool "Multi-core scheduler support"
1498 depends on ARM_CPU_TOPOLOGY
1499 help
1500 Multi-core scheduler support improves the CPU scheduler's decision
1501 making when dealing with multi-core CPU chips at a cost of slightly
1502 increased overhead in some places. If unsure say N here.
1503
1504config SCHED_SMT
1505 bool "SMT scheduler support"
1506 depends on ARM_CPU_TOPOLOGY
1507 help
1508 Improves the CPU scheduler's decision making when dealing with
1509 MultiThreading at a cost of slightly increased overhead in some
1510 places. If unsure say N here.
1511
Russell Kinga8cbcd92009-05-16 11:51:14 +01001512config HAVE_ARM_SCU
1513 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001514 help
1515 This option enables support for the ARM system coherency unit
1516
Marc Zyngier022c03a2012-01-11 17:25:17 +00001517config ARM_ARCH_TIMER
1518 bool "Architected timer support"
1519 depends on CPU_V7
1520 help
1521 This option enables support for the ARM architected timer
1522
Russell Kingf32f4ce2009-05-16 12:14:21 +01001523config HAVE_ARM_TWD
1524 bool
1525 depends on SMP
1526 help
1527 This options enables support for the ARM timer and watchdog unit
1528
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001529choice
1530 prompt "Memory split"
1531 default VMSPLIT_3G
1532 help
1533 Select the desired split between kernel and user memory.
1534
1535 If you are not absolutely sure what you are doing, leave this
1536 option alone!
1537
1538 config VMSPLIT_3G
1539 bool "3G/1G user/kernel split"
1540 config VMSPLIT_2G
1541 bool "2G/2G user/kernel split"
1542 config VMSPLIT_1G
1543 bool "1G/3G user/kernel split"
1544endchoice
1545
1546config PAGE_OFFSET
1547 hex
1548 default 0x40000000 if VMSPLIT_1G
1549 default 0x80000000 if VMSPLIT_2G
1550 default 0xC0000000
1551
Linus Torvalds1da177e2005-04-16 15:20:36 -07001552config NR_CPUS
1553 int "Maximum number of CPUs (2-32)"
1554 range 2 32
1555 depends on SMP
1556 default "4"
1557
Russell Kinga054a812005-11-02 22:24:33 +00001558config HOTPLUG_CPU
1559 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1560 depends on SMP && HOTPLUG && EXPERIMENTAL
1561 help
1562 Say Y here to experiment with turning CPUs off and on. CPUs
1563 can be controlled through /sys/devices/system/cpu.
1564
Russell King37ee16a2005-11-08 19:08:05 +00001565config LOCAL_TIMERS
1566 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001567 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001568 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001569 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001570 help
1571 Enable support for local timers on SMP platforms, rather then the
1572 legacy IPI broadcast method. Local timers allows the system
1573 accounting to be spread across the timer interval, preventing a
1574 "thundering herd" at every timer tick.
1575
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001576config ARCH_NR_GPIO
1577 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001578 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Philippe Langlais70227a42012-02-13 10:51:22 +01001579 default 355 if ARCH_U8500
Paul Parsons9a01ec32012-02-27 01:58:45 +00001580 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001581 default 0
1582 help
1583 Maximum number of GPIOs in the system.
1584
1585 If unsure, leave the default value.
1586
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001587source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001588
Russell Kingf8065812006-03-02 22:41:59 +00001589config HZ
1590 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001591 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001592 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001593 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001594 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001595 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001596 default 100
1597
Catalin Marinas16c79652009-07-24 12:33:02 +01001598config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001599 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001600 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001601 select AEABI
1602 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001603 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001604 help
1605 By enabling this option, the kernel will be compiled in
1606 Thumb-2 mode. A compiler/assembler that understand the unified
1607 ARM-Thumb syntax is needed.
1608
1609 If unsure, say N.
1610
Dave Martin6f685c52011-03-03 11:41:12 +01001611config THUMB2_AVOID_R_ARM_THM_JUMP11
1612 bool "Work around buggy Thumb-2 short branch relocations in gas"
1613 depends on THUMB2_KERNEL && MODULES
1614 default y
1615 help
1616 Various binutils versions can resolve Thumb-2 branches to
1617 locally-defined, preemptible global symbols as short-range "b.n"
1618 branch instructions.
1619
1620 This is a problem, because there's no guarantee the final
1621 destination of the symbol, or any candidate locations for a
1622 trampoline, are within range of the branch. For this reason, the
1623 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1624 relocation in modules at all, and it makes little sense to add
1625 support.
1626
1627 The symptom is that the kernel fails with an "unsupported
1628 relocation" error when loading some modules.
1629
1630 Until fixed tools are available, passing
1631 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1632 code which hits this problem, at the cost of a bit of extra runtime
1633 stack usage in some cases.
1634
1635 The problem is described in more detail at:
1636 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1637
1638 Only Thumb-2 kernels are affected.
1639
1640 Unless you are sure your tools don't have this problem, say Y.
1641
Catalin Marinas0becb082009-07-24 12:32:53 +01001642config ARM_ASM_UNIFIED
1643 bool
1644
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001645config AEABI
1646 bool "Use the ARM EABI to compile the kernel"
1647 help
1648 This option allows for the kernel to be compiled using the latest
1649 ARM ABI (aka EABI). This is only useful if you are using a user
1650 space environment that is also compiled with EABI.
1651
1652 Since there are major incompatibilities between the legacy ABI and
1653 EABI, especially with regard to structure member alignment, this
1654 option also changes the kernel syscall calling convention to
1655 disambiguate both ABIs and allow for backward compatibility support
1656 (selected with CONFIG_OABI_COMPAT).
1657
1658 To use this you need GCC version 4.0.0 or later.
1659
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001660config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001661 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001662 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001663 default y
1664 help
1665 This option preserves the old syscall interface along with the
1666 new (ARM EABI) one. It also provides a compatibility layer to
1667 intercept syscalls that have structure arguments which layout
1668 in memory differs between the legacy ABI and the new ARM EABI
1669 (only for non "thumb" binaries). This option adds a tiny
1670 overhead to all syscalls and produces a slightly larger kernel.
1671 If you know you'll be using only pure EABI user space then you
1672 can say N here. If this option is not selected and you attempt
1673 to execute a legacy ABI binary then the result will be
1674 UNPREDICTABLE (in fact it can be predicted that it won't work
1675 at all). If in doubt say Y.
1676
Mel Gormaneb335752009-05-13 17:34:48 +01001677config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001678 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001679
Russell King05944d72006-11-30 20:43:51 +00001680config ARCH_SPARSEMEM_ENABLE
1681 bool
1682
Russell King07a2f732008-10-01 21:39:58 +01001683config ARCH_SPARSEMEM_DEFAULT
1684 def_bool ARCH_SPARSEMEM_ENABLE
1685
Russell King05944d72006-11-30 20:43:51 +00001686config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001687 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001688
Will Deacon7b7bf492011-05-19 13:21:14 +01001689config HAVE_ARCH_PFN_VALID
1690 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1691
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001692config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001693 bool "High Memory Support"
1694 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001695 help
1696 The address space of ARM processors is only 4 Gigabytes large
1697 and it has to accommodate user address space, kernel address
1698 space as well as some memory mapped IO. That means that, if you
1699 have a large amount of physical memory and/or IO, not all of the
1700 memory can be "permanently mapped" by the kernel. The physical
1701 memory that is not permanently mapped is called "high memory".
1702
1703 Depending on the selected kernel/user memory split, minimum
1704 vmalloc space and actual amount of RAM, you may not need this
1705 option which should result in a slightly faster kernel.
1706
1707 If unsure, say n.
1708
Russell King65cec8e2009-08-17 20:02:06 +01001709config HIGHPTE
1710 bool "Allocate 2nd-level pagetables from highmem"
1711 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001712
Jamie Iles1b8873a2010-02-02 20:25:44 +01001713config HW_PERF_EVENTS
1714 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001715 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001716 default y
1717 help
1718 Enable hardware performance counter support for perf events. If
1719 disabled, perf events will use software events only.
1720
Dave Hansen3f22ab22005-06-23 00:07:43 -07001721source "mm/Kconfig"
1722
Magnus Dammc1b2d972010-07-05 10:00:11 +01001723config FORCE_MAX_ZONEORDER
1724 int "Maximum zone order" if ARCH_SHMOBILE
1725 range 11 64 if ARCH_SHMOBILE
1726 default "9" if SA1111
1727 default "11"
1728 help
1729 The kernel memory allocator divides physically contiguous memory
1730 blocks into "zones", where each zone is a power of two number of
1731 pages. This option selects the largest power of two that the kernel
1732 keeps in the memory allocator. If you need to allocate very large
1733 blocks of physically contiguous memory, then you may need to
1734 increase this value.
1735
1736 This config option is actually maximum order plus one. For example,
1737 a value of 11 means that the largest free memory block is 2^10 pages.
1738
Linus Torvalds1da177e2005-04-16 15:20:36 -07001739config LEDS
1740 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001741 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001742 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001743 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1744 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001745 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001746 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001747 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001748 help
1749 If you say Y here, the LEDs on your machine will be used
1750 to provide useful information about your current system status.
1751
1752 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1753 be able to select which LEDs are active using the options below. If
1754 you are compiling a kernel for the EBSA-110 or the LART however, the
1755 red LED will simply flash regularly to indicate that the system is
1756 still functional. It is safe to say Y here if you have a CATS
1757 system, but the driver will do nothing.
1758
1759config LEDS_TIMER
1760 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001761 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1762 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001763 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001764 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001765 default y if ARCH_EBSA110
1766 help
1767 If you say Y here, one of the system LEDs (the green one on the
1768 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1769 will flash regularly to indicate that the system is still
1770 operational. This is mainly useful to kernel hackers who are
1771 debugging unstable kernels.
1772
1773 The LART uses the same LED for both Timer LED and CPU usage LED
1774 functions. You may choose to use both, but the Timer LED function
1775 will overrule the CPU usage LED.
1776
1777config LEDS_CPU
1778 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001779 !ARCH_OMAP) \
1780 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1781 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001782 depends on LEDS
1783 help
1784 If you say Y here, the red LED will be used to give a good real
1785 time indication of CPU usage, by lighting whenever the idle task
1786 is not currently executing.
1787
1788 The LART uses the same LED for both Timer LED and CPU usage LED
1789 functions. You may choose to use both, but the Timer LED function
1790 will overrule the CPU usage LED.
1791
1792config ALIGNMENT_TRAP
1793 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001794 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001795 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001796 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001797 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001798 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001799 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1800 address divisible by 4. On 32-bit ARM processors, these non-aligned
1801 fetch/store instructions will be emulated in software if you say
1802 here, which has a severe performance impact. This is necessary for
1803 correct operation of some network protocols. With an IP-only
1804 configuration it is safe to say N, otherwise say Y.
1805
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001806config UACCESS_WITH_MEMCPY
1807 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1808 depends on MMU && EXPERIMENTAL
1809 default y if CPU_FEROCEON
1810 help
1811 Implement faster copy_to_user and clear_user methods for CPU
1812 cores where a 8-word STM instruction give significantly higher
1813 memory write throughput than a sequence of individual 32bit stores.
1814
1815 A possible side effect is a slight increase in scheduling latency
1816 between threads sharing the same address space if they invoke
1817 such copy operations with large buffers.
1818
1819 However, if the CPU data cache is using a write-allocate mode,
1820 this option is unlikely to provide any performance gain.
1821
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001822config SECCOMP
1823 bool
1824 prompt "Enable seccomp to safely compute untrusted bytecode"
1825 ---help---
1826 This kernel feature is useful for number crunching applications
1827 that may need to compute untrusted bytecode during their
1828 execution. By using pipes or other transports made available to
1829 the process as file descriptors supporting the read/write
1830 syscalls, it's possible to isolate those applications in
1831 their own address space using seccomp. Once seccomp is
1832 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1833 and the task is only allowed to execute a few safe syscalls
1834 defined by each seccomp mode.
1835
Nicolas Pitrec743f382010-05-24 23:55:42 -04001836config CC_STACKPROTECTOR
1837 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001838 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001839 help
1840 This option turns on the -fstack-protector GCC feature. This
1841 feature puts, at the beginning of functions, a canary value on
1842 the stack just before the return address, and validates
1843 the value just before actually returning. Stack based buffer
1844 overflows (that need to overwrite this return address) now also
1845 overwrite the canary, which gets detected and the attack is then
1846 neutralized via a kernel panic.
1847 This feature requires gcc version 4.2 or above.
1848
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001849config DEPRECATED_PARAM_STRUCT
1850 bool "Provide old way to pass kernel parameters"
1851 help
1852 This was deprecated in 2001 and announced to live on for 5 years.
1853 Some old boot loaders still use this way.
1854
Linus Torvalds1da177e2005-04-16 15:20:36 -07001855endmenu
1856
1857menu "Boot options"
1858
Grant Likely9eb8f672011-04-28 14:27:20 -06001859config USE_OF
1860 bool "Flattened Device Tree support"
1861 select OF
1862 select OF_EARLY_FLATTREE
Grant Likely08a543a2011-07-26 03:19:06 -06001863 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001864 help
1865 Include support for flattened device tree machine descriptions.
1866
Linus Torvalds1da177e2005-04-16 15:20:36 -07001867# Compressed boot loader in ROM. Yes, we really want to ask about
1868# TEXT and BSS so we preserve their values in the config files.
1869config ZBOOT_ROM_TEXT
1870 hex "Compressed ROM boot loader base address"
1871 default "0"
1872 help
1873 The physical address at which the ROM-able zImage is to be
1874 placed in the target. Platforms which normally make use of
1875 ROM-able zImage formats normally set this to a suitable
1876 value in their defconfig file.
1877
1878 If ZBOOT_ROM is not enabled, this has no effect.
1879
1880config ZBOOT_ROM_BSS
1881 hex "Compressed ROM boot loader BSS address"
1882 default "0"
1883 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001884 The base address of an area of read/write memory in the target
1885 for the ROM-able zImage which must be available while the
1886 decompressor is running. It must be large enough to hold the
1887 entire decompressed kernel plus an additional 128 KiB.
1888 Platforms which normally make use of ROM-able zImage formats
1889 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001890
1891 If ZBOOT_ROM is not enabled, this has no effect.
1892
1893config ZBOOT_ROM
1894 bool "Compressed boot loader in ROM/flash"
1895 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1896 help
1897 Say Y here if you intend to execute your compressed kernel image
1898 (zImage) directly from ROM or flash. If unsure, say N.
1899
Simon Horman090ab3f2011-04-26 06:29:53 +01001900choice
1901 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1902 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1903 default ZBOOT_ROM_NONE
1904 help
1905 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001906 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001907 kernel image to an MMC or SD card and boot the kernel straight
1908 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001909 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001910 rest the kernel image to RAM.
1911
1912config ZBOOT_ROM_NONE
1913 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1914 help
1915 Do not load image from SD or MMC
1916
Simon Hormanf45b1142011-01-11 04:01:08 +01001917config ZBOOT_ROM_MMCIF
1918 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001919 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001920 Load image from MMCIF hardware block.
1921
1922config ZBOOT_ROM_SH_MOBILE_SDHI
1923 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1924 help
1925 Load image from SDHI hardware block
1926
1927endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001928
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001929config ARM_APPENDED_DTB
1930 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1931 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1932 help
1933 With this option, the boot code will look for a device tree binary
1934 (DTB) appended to zImage
1935 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1936
1937 This is meant as a backward compatibility convenience for those
1938 systems with a bootloader that can't be upgraded to accommodate
1939 the documented boot protocol using a device tree.
1940
1941 Beware that there is very little in terms of protection against
1942 this option being confused by leftover garbage in memory that might
1943 look like a DTB header after a reboot if no actual DTB is appended
1944 to zImage. Do not leave this option active in a production kernel
1945 if you don't intend to always append a DTB. Proper passing of the
1946 location into r2 of a bootloader provided DTB is always preferable
1947 to this option.
1948
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001949config ARM_ATAG_DTB_COMPAT
1950 bool "Supplement the appended DTB with traditional ATAG information"
1951 depends on ARM_APPENDED_DTB
1952 help
1953 Some old bootloaders can't be updated to a DTB capable one, yet
1954 they provide ATAGs with memory configuration, the ramdisk address,
1955 the kernel cmdline string, etc. Such information is dynamically
1956 provided by the bootloader and can't always be stored in a static
1957 DTB. To allow a device tree enabled kernel to be used with such
1958 bootloaders, this option allows zImage to extract the information
1959 from the ATAG list and store it at run time into the appended DTB.
1960
Linus Torvalds1da177e2005-04-16 15:20:36 -07001961config CMDLINE
1962 string "Default kernel command string"
1963 default ""
1964 help
1965 On some architectures (EBSA110 and CATS), there is currently no way
1966 for the boot loader to pass arguments to the kernel. For these
1967 architectures, you should supply some command-line options at build
1968 time by entering them here. As a minimum, you should specify the
1969 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1970
Victor Boivie4394c122011-05-04 17:07:55 +01001971choice
1972 prompt "Kernel command line type" if CMDLINE != ""
1973 default CMDLINE_FROM_BOOTLOADER
1974
1975config CMDLINE_FROM_BOOTLOADER
1976 bool "Use bootloader kernel arguments if available"
1977 help
1978 Uses the command-line options passed by the boot loader. If
1979 the boot loader doesn't provide any, the default kernel command
1980 string provided in CMDLINE will be used.
1981
1982config CMDLINE_EXTEND
1983 bool "Extend bootloader kernel arguments"
1984 help
1985 The command-line arguments provided by the boot loader will be
1986 appended to the default kernel command string.
1987
Alexander Holler92d20402010-02-16 19:04:53 +01001988config CMDLINE_FORCE
1989 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001990 help
1991 Always use the default kernel command string, even if the boot
1992 loader passes other arguments to the kernel.
1993 This is useful if you cannot or don't want to change the
1994 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001995endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001996
Linus Torvalds1da177e2005-04-16 15:20:36 -07001997config XIP_KERNEL
1998 bool "Kernel Execute-In-Place from ROM"
Catalin Marinas497b7e92011-11-22 17:30:32 +00001999 depends on !ZBOOT_ROM && !ARM_LPAE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002000 help
2001 Execute-In-Place allows the kernel to run from non-volatile storage
2002 directly addressable by the CPU, such as NOR flash. This saves RAM
2003 space since the text section of the kernel is not loaded from flash
2004 to RAM. Read-write sections, such as the data section and stack,
2005 are still copied to RAM. The XIP kernel is not compressed since
2006 it has to run directly from flash, so it will take more space to
2007 store it. The flash address used to link the kernel object files,
2008 and for storing it, is configuration dependent. Therefore, if you
2009 say Y here, you must know the proper physical address where to
2010 store the kernel image depending on your own flash memory usage.
2011
2012 Also note that the make target becomes "make xipImage" rather than
2013 "make zImage" or "make Image". The final kernel binary to put in
2014 ROM memory will be arch/arm/boot/xipImage.
2015
2016 If unsure, say N.
2017
2018config XIP_PHYS_ADDR
2019 hex "XIP Kernel Physical Location"
2020 depends on XIP_KERNEL
2021 default "0x00080000"
2022 help
2023 This is the physical address in your flash memory the kernel will
2024 be linked for and stored to. This address is dependent on your
2025 own flash usage.
2026
Richard Purdiec587e4a2007-02-06 21:29:00 +01002027config KEXEC
2028 bool "Kexec system call (EXPERIMENTAL)"
Will Deacon02b73e22011-06-06 15:49:23 +01002029 depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002030 help
2031 kexec is a system call that implements the ability to shutdown your
2032 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002033 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002034 you can start any kernel with it, not just Linux.
2035
2036 It is an ongoing process to be certain the hardware in a machine
2037 is properly shutdown, so do not be surprised if this code does not
2038 initially work for you. It may help to enable device hotplugging
2039 support.
2040
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002041config ATAGS_PROC
2042 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01002043 depends on KEXEC
2044 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002045 help
2046 Should the atags used to boot the kernel be exported in an "atags"
2047 file in procfs. Useful with kexec.
2048
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002049config CRASH_DUMP
2050 bool "Build kdump crash kernel (EXPERIMENTAL)"
2051 depends on EXPERIMENTAL
2052 help
2053 Generate crash dump after being started by kexec. This should
2054 be normally only set in special crash dump kernels which are
2055 loaded in the main kernel with kexec-tools into a specially
2056 reserved region and then later executed after a crash by
2057 kdump/kexec. The crash dump kernel must be compiled to a
2058 memory address not used by the main kernel
2059
2060 For more details see Documentation/kdump/kdump.txt
2061
Eric Miaoe69edc792010-07-05 15:56:50 +02002062config AUTO_ZRELADDR
2063 bool "Auto calculation of the decompressed kernel image address"
2064 depends on !ZBOOT_ROM && !ARCH_U300
2065 help
2066 ZRELADDR is the physical address where the decompressed kernel
2067 image will be placed. If AUTO_ZRELADDR is selected, the address
2068 will be determined at run-time by masking the current IP with
2069 0xf8000000. This assumes the zImage being placed in the first 128MB
2070 from start of memory.
2071
Linus Torvalds1da177e2005-04-16 15:20:36 -07002072endmenu
2073
Russell Kingac9d7ef2008-08-18 17:26:00 +01002074menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002075
Ben Dooks89c52ed2009-07-30 23:23:24 +01002076if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002077
2078source "drivers/cpufreq/Kconfig"
2079
Yong Shen64f102b2010-10-21 21:18:59 +08002080config CPU_FREQ_IMX
2081 tristate "CPUfreq driver for i.MX CPUs"
2082 depends on ARCH_MXC && CPU_FREQ
2083 help
2084 This enables the CPUfreq driver for i.MX CPUs.
2085
Linus Torvalds1da177e2005-04-16 15:20:36 -07002086config CPU_FREQ_SA1100
2087 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002088
2089config CPU_FREQ_SA1110
2090 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002091
2092config CPU_FREQ_INTEGRATOR
2093 tristate "CPUfreq driver for ARM Integrator CPUs"
2094 depends on ARCH_INTEGRATOR && CPU_FREQ
2095 default y
2096 help
2097 This enables the CPUfreq driver for ARM Integrator CPUs.
2098
2099 For details, take a look at <file:Documentation/cpu-freq>.
2100
2101 If in doubt, say Y.
2102
Russell King9e2697f2007-12-14 13:30:14 +00002103config CPU_FREQ_PXA
2104 bool
2105 depends on CPU_FREQ && ARCH_PXA && PXA25x
2106 default y
Arnd Bergmannca7d1562011-10-01 22:03:51 +02002107 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002108 select CPU_FREQ_DEFAULT_GOV_USERSPACE
2109
Ben Dooks9d56c022009-07-30 23:23:25 +01002110config CPU_FREQ_S3C
2111 bool
2112 help
2113 Internal configuration node for common cpufreq on Samsung SoC
2114
2115config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002116 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09002117 depends on ARCH_S3C24XX && CPU_FREQ && EXPERIMENTAL
Ben Dooks9d56c022009-07-30 23:23:25 +01002118 select CPU_FREQ_S3C
2119 help
2120 This enables the CPUfreq driver for the Samsung S3C24XX family
2121 of CPUs.
2122
2123 For details, take a look at <file:Documentation/cpu-freq>.
2124
2125 If in doubt, say N.
2126
2127config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002128 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002129 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2130 help
2131 Compile in support for changing the PLL frequency from the
2132 S3C24XX series CPUfreq driver. The PLL takes time to settle
2133 after a frequency change, so by default it is not enabled.
2134
2135 This also means that the PLL tables for the selected CPU(s) will
2136 be built which may increase the size of the kernel image.
2137
2138config CPU_FREQ_S3C24XX_DEBUG
2139 bool "Debug CPUfreq Samsung driver core"
2140 depends on CPU_FREQ_S3C24XX
2141 help
2142 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2143
2144config CPU_FREQ_S3C24XX_IODEBUG
2145 bool "Debug CPUfreq Samsung driver IO timing"
2146 depends on CPU_FREQ_S3C24XX
2147 help
2148 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2149
Ben Dookse6d197a2009-07-30 23:23:42 +01002150config CPU_FREQ_S3C24XX_DEBUGFS
2151 bool "Export debugfs for CPUFreq"
2152 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2153 help
2154 Export status information via debugfs.
2155
Linus Torvalds1da177e2005-04-16 15:20:36 -07002156endif
2157
Russell Kingac9d7ef2008-08-18 17:26:00 +01002158source "drivers/cpuidle/Kconfig"
2159
2160endmenu
2161
Linus Torvalds1da177e2005-04-16 15:20:36 -07002162menu "Floating point emulation"
2163
2164comment "At least one emulation must be selected"
2165
2166config FPE_NWFPE
2167 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002168 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002169 ---help---
2170 Say Y to include the NWFPE floating point emulator in the kernel.
2171 This is necessary to run most binaries. Linux does not currently
2172 support floating point hardware so you need to say Y here even if
2173 your machine has an FPA or floating point co-processor podule.
2174
2175 You may say N here if you are going to load the Acorn FPEmulator
2176 early in the bootup.
2177
2178config FPE_NWFPE_XP
2179 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002180 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002181 help
2182 Say Y to include 80-bit support in the kernel floating-point
2183 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2184 Note that gcc does not generate 80-bit operations by default,
2185 so in most cases this option only enlarges the size of the
2186 floating point emulator without any good reason.
2187
2188 You almost surely want to say N here.
2189
2190config FPE_FASTFPE
2191 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002192 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002193 ---help---
2194 Say Y here to include the FAST floating point emulator in the kernel.
2195 This is an experimental much faster emulator which now also has full
2196 precision for the mantissa. It does not support any exceptions.
2197 It is very simple, and approximately 3-6 times faster than NWFPE.
2198
2199 It should be sufficient for most programs. It may be not suitable
2200 for scientific calculations, but you have to check this for yourself.
2201 If you do not feel you need a faster FP emulation you should better
2202 choose NWFPE.
2203
2204config VFP
2205 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002206 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002207 help
2208 Say Y to include VFP support code in the kernel. This is needed
2209 if your hardware includes a VFP unit.
2210
2211 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2212 release notes and additional status information.
2213
2214 Say N if your target does not have VFP hardware.
2215
Catalin Marinas25ebee02007-09-25 15:22:24 +01002216config VFPv3
2217 bool
2218 depends on VFP
2219 default y if CPU_V7
2220
Catalin Marinasb5872db2008-01-10 19:16:17 +01002221config NEON
2222 bool "Advanced SIMD (NEON) Extension support"
2223 depends on VFPv3 && CPU_V7
2224 help
2225 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2226 Extension.
2227
Linus Torvalds1da177e2005-04-16 15:20:36 -07002228endmenu
2229
2230menu "Userspace binary formats"
2231
2232source "fs/Kconfig.binfmt"
2233
2234config ARTHUR
2235 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002236 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002237 help
2238 Say Y here to include the kernel code necessary if you want to run
2239 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2240 experimental; if this sounds frightening, say N and sleep in peace.
2241 You can also say M here to compile this support as a module (which
2242 will be called arthur).
2243
2244endmenu
2245
2246menu "Power management options"
2247
Russell Kingeceab4a2005-11-15 11:31:41 +00002248source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002249
Johannes Bergf4cb5702007-12-08 02:14:00 +01002250config ARCH_SUSPEND_POSSIBLE
Stephen Warren3d5e8af2012-04-13 15:30:07 -06002251 depends on !ARCH_S5PC100 && !ARCH_TEGRA
Russell King6a786182011-04-02 10:15:28 +01002252 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
Chao Xie3f5d0812012-05-07 11:23:58 +08002253 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002254 def_bool y
2255
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002256config ARM_CPU_SUSPEND
2257 def_bool PM_SLEEP
2258
Linus Torvalds1da177e2005-04-16 15:20:36 -07002259endmenu
2260
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002261source "net/Kconfig"
2262
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002263source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002264
2265source "fs/Kconfig"
2266
Linus Torvalds1da177e2005-04-16 15:20:36 -07002267source "arch/arm/Kconfig.debug"
2268
2269source "security/Kconfig"
2270
2271source "crypto/Kconfig"
2272
2273source "lib/Kconfig"