blob: 84449dd8f031084f84990e0b5395bbabb0e42ce9 [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
Kevin Wells40805942010-07-27 08:49:04 -0700569 help
570 Support for the NXP LPC32XX family of processors
571
Russell King788c9702009-04-26 14:21:59 +0100572config ARCH_MV78XX0
573 bool "Marvell MV78xx0"
574 select CPU_FEROCEON
575 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700576 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100577 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600578 select NEED_MACH_IO_H
Russell King788c9702009-04-26 14:21:59 +0100579 select PLAT_ORION
580 help
581 Support for the following Marvell MV78xx0 series SoCs:
582 MV781x0, MV782x0.
583
584config ARCH_ORION5X
585 bool "Marvell Orion"
586 depends on MMU
587 select CPU_FEROCEON
588 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700589 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100590 select GENERIC_CLOCKEVENTS
591 select PLAT_ORION
592 help
593 Support for the following Marvell Orion 5x series SoCs:
594 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
595 Orion-2 (5281), Orion-1-90 (6183).
596
597config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500598 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100599 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100600 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100601 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100602 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800603 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800604 select IRQ_DOMAIN
Russell King788c9702009-04-26 14:21:59 +0100605 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400606 select SPARSE_IRQ
Leo Yan3c7241b2011-08-15 11:09:52 +0800607 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100608 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500609 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100610
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100611config ARCH_KS8695
612 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000613 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100614 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000615 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400616 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100617 help
618 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
619 System-on-Chip devices.
620
Russell King788c9702009-04-26 14:21:59 +0100621config ARCH_W90X900
622 bool "Nuvoton W90X900 CPU"
623 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100624 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100625 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100626 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100627 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200628 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100629 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
630 At present, the w90x900 has been renamed nuc900, regarding
631 the ARM series product line, you can login the following
632 link address to know more.
633
634 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
635 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400636
Erik Gillingc5f80062010-01-21 16:53:02 -0800637config ARCH_TEGRA
638 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000639 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100640 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800641 select GENERIC_CLOCKEVENTS
642 select GENERIC_GPIO
643 select HAVE_CLK
Dave Martin3b556582011-12-07 15:38:04 +0000644 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000645 select MIGHT_HAVE_CACHE_L2X0
Rob Herringc334bc12012-03-04 22:03:33 -0600646 select NEED_MACH_IO_H if PCI
Colin Cross7056d422010-04-22 20:30:13 -0700647 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800648 help
649 This enables support for NVIDIA Tegra based systems (Tegra APX,
650 Tegra 6xx and Tegra 2 series).
651
Jamie Ilesaf756552011-07-25 17:36:42 +0100652config ARCH_PICOXCELL
653 bool "Picochip picoXcell"
654 select ARCH_REQUIRE_GPIOLIB
655 select ARM_PATCH_PHYS_VIRT
656 select ARM_VIC
657 select CPU_V6K
658 select DW_APB_TIMER
659 select GENERIC_CLOCKEVENTS
660 select GENERIC_GPIO
Jamie Ilesaf756552011-07-25 17:36:42 +0100661 select HAVE_TCM
662 select NO_IOPORT
Jamie Iles98e27a52011-12-12 20:17:37 +0000663 select SPARSE_IRQ
Jamie Ilesaf756552011-07-25 17:36:42 +0100664 select USE_OF
665 help
666 This enables support for systems based on the Picochip picoXcell
667 family of Femtocell devices. The picoxcell support requires device tree
668 for all boards.
669
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100670config ARCH_PNX4008
671 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000672 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100673 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000674 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100675 help
676 This enables support for Philips PNX4008 mobile platform.
677
Linus Torvalds1da177e2005-04-16 15:20:36 -0700678config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700679 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100680 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500681 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100682 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100683 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100684 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700685 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100686 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800687 select GPIO_PXA
Eric Miaobd5ce432009-01-20 12:06:01 +0800688 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800689 select SPARSE_IRQ
Eric Miao4e234cc2011-04-04 15:06:33 +0800690 select AUTO_ZRELADDR
Eric Miao8a97ae22011-05-18 21:30:04 +0800691 select MULTI_IRQ_HANDLER
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +0200692 select ARM_CPU_SUSPEND if PM
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200693 select HAVE_IDE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000694 help
eric miao2c8086a2007-09-11 19:13:17 -0700695 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700696
Russell King788c9702009-04-26 14:21:59 +0100697config ARCH_MSM
698 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500699 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800700 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700701 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800702 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800703 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800704 Support for Qualcomm MSM/QSD based systems. This runs on the
705 apps processor of the MSM/QSD and depends on a shared memory
706 interface to the modem processor which runs the baseband
707 stack and controls some vital subsystems
708 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800709
Magnus Dammc793c1b2010-02-05 11:14:49 +0000710config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900711 bool "Renesas SH-Mobile / R-Mobile"
712 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900713 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900714 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000715 select HAVE_SMP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900716 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000717 select MIGHT_HAVE_CACHE_L2X0
Paul Mundt6d72ad32010-11-16 16:10:20 +0900718 select NO_IOPORT
719 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000720 select MULTI_IRQ_HANDLER
Rafael J. Wysockie3e01092011-07-01 22:13:56 +0200721 select PM_GENERIC_DOMAINS if PM
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400722 select NEED_MACH_MEMORY_H
Magnus Dammc793c1b2010-02-05 11:14:49 +0000723 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900724 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000725
Linus Torvalds1da177e2005-04-16 15:20:36 -0700726config ARCH_RPC
727 bool "RiscPC"
728 select ARCH_ACORN
729 select FIQ
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100730 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100731 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000732 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000733 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100734 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000735 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200736 select HAVE_IDE
Rob Herringc334bc12012-03-04 22:03:33 -0600737 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400738 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700739 help
740 On the Acorn Risc-PC, Linux can support the internal IDE disk and
741 CD-ROM interface, serial and parallel port, and the floppy drive.
742
743config ARCH_SA1100
744 bool "SA1100-based"
Russell King234b6ced2011-05-08 14:09:47 +0100745 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000746 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100747 select ISA
Russell King05944d72006-11-30 20:43:51 +0000748 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500749 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100750 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000751 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100752 select GENERIC_CLOCKEVENTS
Jett.Zhou4a8f8342011-11-30 14:32:36 +0800753 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700754 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200755 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400756 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100757 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000758 help
759 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700760
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900761config ARCH_S3C24XX
762 bool "Samsung S3C24XX SoCs"
David Brownell0a938b92007-03-05 00:30:18 -0800763 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100764 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700765 select HAVE_CLK
Thomas Abrahame83626f2011-06-14 19:12:26 +0900766 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000767 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900768 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900769 select HAVE_S3C_RTC if RTC_CLASS
770 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Rob Herringc334bc12012-03-04 22:03:33 -0600771 select NEED_MACH_IO_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700772 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900773 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
774 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
775 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
776 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900777
Ben Dooksa08ab632008-10-21 14:06:39 +0100778config ARCH_S3C64XX
779 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000780 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900781 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900782 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100783 select HAVE_CLK
Mark Brown67003972011-10-11 08:57:11 +0900784 select HAVE_TCM
Thomas Abraham226e85f2011-06-14 19:12:26 +0900785 select CLKDEV_LOOKUP
Ben Dooks89f0ce72010-01-26 15:49:15 +0900786 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000787 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100788 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900789 select ARCH_REQUIRE_GPIOLIB
790 select SAMSUNG_CLKSRC
791 select SAMSUNG_IRQ_VIC_TIMER
Ben Dooks89f0ce72010-01-26 15:49:15 +0900792 select S3C_GPIO_TRACK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900793 select S3C_DEV_NAND
794 select USB_ARCH_HAS_OHCI
795 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900796 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900797 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100798 help
799 Samsung S3C64XX series based systems
800
Kukjin Kim49b7a492010-09-07 15:47:18 +0900801config ARCH_S5P64X0
802 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900803 select CPU_V6
804 select GENERIC_GPIO
805 select HAVE_CLK
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900806 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900807 select CLKSRC_MMIO
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900808 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900809 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900810 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900811 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900812 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900813 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
814 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900815
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200816config ARCH_S5PC100
817 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900818 select GENERIC_GPIO
819 select HAVE_CLK
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900820 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900821 select CPU_V7
Ben Dooks925c68c2010-05-20 20:48:28 +0900822 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900823 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900824 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900825 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900826 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200827 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900828
Kukjin Kim170f4e42010-02-24 16:40:44 +0900829config ARCH_S5PV210
830 bool "Samsung S5PV210/S5PC110"
831 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900832 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900833 select ARCH_HAS_HOLES_MEMORYMODEL
Kukjin Kim170f4e42010-02-24 16:40:44 +0900834 select GENERIC_GPIO
835 select HAVE_CLK
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900836 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900837 select CLKSRC_MMIO
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900838 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900839 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900840 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900841 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900842 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400843 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900844 help
845 Samsung S5PV210/S5PC110 series based systems
846
Kukjin Kim83014572011-11-06 13:54:56 +0900847config ARCH_EXYNOS
848 bool "SAMSUNG EXYNOS"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900849 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900850 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900851 select ARCH_HAS_HOLES_MEMORYMODEL
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900852 select GENERIC_GPIO
853 select HAVE_CLK
Thomas Abrahambadc4f22011-06-14 19:12:27 +0900854 select CLKDEV_LOOKUP
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900855 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900856 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900857 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900858 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900859 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400860 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900861 help
Kukjin Kim83014572011-11-06 13:54:56 +0900862 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900863
Linus Torvalds1da177e2005-04-16 15:20:36 -0700864config ARCH_SHARK
865 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000866 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100867 select ISA
868 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100869 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100870 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000871 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400872 select NEED_MACH_MEMORY_H
Rob Herringc334bc12012-03-04 22:03:33 -0600873 select NEED_MACH_IO_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000874 help
875 Support for the StrongARM based Digital DNARD machine, also known
876 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700877
Linus Walleijd98aac72009-04-27 10:21:46 +0100878config ARCH_U300
879 bool "ST-Ericsson U300 Series"
880 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100881 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100882 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100883 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100884 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200885 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100886 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100887 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100888 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900889 select HAVE_MACH_CLKDEV
Linus Walleijd98aac72009-04-27 10:21:46 +0100890 select GENERIC_GPIO
Linus Walleijcc890cd2011-09-08 09:04:51 +0100891 select ARCH_REQUIRE_GPIOLIB
Linus Walleijd98aac72009-04-27 10:21:46 +0100892 help
893 Support for ST-Ericsson U300 series mobile platforms.
894
Russell Kingccf50e22010-03-15 19:03:06 +0000895config ARCH_U8500
896 bool "ST-Ericsson U8500 Series"
Arnd Bergmann67ae14f2012-02-25 12:48:49 -0700897 depends on MMU
Russell Kingccf50e22010-03-15 19:03:06 +0000898 select CPU_V7
899 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000900 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100901 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100902 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100903 select ARCH_HAS_CPUFREQ
Dave Martin3b556582011-12-07 15:38:04 +0000904 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000905 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000906 help
907 Support for ST-Ericsson's Ux500 architecture
908
909config ARCH_NOMADIK
910 bool "STMicroelectronics Nomadik"
911 select ARM_AMBA
912 select ARM_VIC
913 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100914 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000915 select GENERIC_CLOCKEVENTS
Arnd Bergmann0fa7be42012-05-15 11:24:34 +0000916 select PINCTRL
Dave Martince5ea9f2011-11-29 15:56:19 +0000917 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000918 select ARCH_REQUIRE_GPIOLIB
919 help
920 Support for the Nomadik platform by ST-Ericsson
921
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100922config ARCH_DAVINCI
923 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100924 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700925 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100926 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700927 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100928 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700929 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100930 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530931 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100932 help
933 Support for TI's DaVinci platform.
934
Russell King3b938be2007-05-12 11:25:44 +0100935config ARCH_OMAP
936 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700937 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700938 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100939 select ARCH_HAS_CPUFREQ
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700940 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700941 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800942 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100943 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200944 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100945
viresh kumarcee37e52010-04-01 12:31:05 +0100946config PLAT_SPEAR
947 bool "ST SPEAr"
948 select ARM_AMBA
949 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100950 select CLKDEV_LOOKUP
Viresh Kumar5df33a62012-04-10 09:02:35 +0530951 select COMMON_CLK
Russell Kingd6e15d72011-05-08 17:10:14 +0100952 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100953 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100954 select HAVE_CLK
955 help
956 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
957
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100958config ARCH_VT8500
959 bool "VIA/WonderMedia 85xx"
960 select CPU_ARM926T
961 select GENERIC_GPIO
962 select ARCH_HAS_CPUFREQ
963 select GENERIC_CLOCKEVENTS
964 select ARCH_REQUIRE_GPIOLIB
965 select HAVE_PWM
966 help
967 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +0800968
John Linnb85a3ef2011-06-20 11:47:27 -0600969config ARCH_ZYNQ
970 bool "Xilinx Zynq ARM Cortex A9 Platform"
Binghua Duan02c981c2011-07-08 17:40:12 +0800971 select CPU_V7
Binghua Duan02c981c2011-07-08 17:40:12 +0800972 select GENERIC_CLOCKEVENTS
973 select CLKDEV_LOOKUP
John Linnb85a3ef2011-06-20 11:47:27 -0600974 select ARM_GIC
975 select ARM_AMBA
976 select ICST
Dave Martince5ea9f2011-11-29 15:56:19 +0000977 select MIGHT_HAVE_CACHE_L2X0
Binghua Duan02c981c2011-07-08 17:40:12 +0800978 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +0800979 help
John Linnb85a3ef2011-06-20 11:47:27 -0600980 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -0700981endchoice
982
Russell Kingccf50e22010-03-15 19:03:06 +0000983#
984# This is sorted alphabetically by mach-* pathname. However, plat-*
985# Kconfigs may be included either alphabetically (according to the
986# plat- suffix) or along side the corresponding mach-* source.
987#
Russell King95b8f202010-01-14 11:43:54 +0000988source "arch/arm/mach-at91/Kconfig"
989
990source "arch/arm/mach-bcmring/Kconfig"
991
Linus Torvalds1da177e2005-04-16 15:20:36 -0700992source "arch/arm/mach-clps711x/Kconfig"
993
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300994source "arch/arm/mach-cns3xxx/Kconfig"
995
Russell King95b8f202010-01-14 11:43:54 +0000996source "arch/arm/mach-davinci/Kconfig"
997
998source "arch/arm/mach-dove/Kconfig"
999
Lennert Buytenheke7736d42006-03-20 17:10:13 +00001000source "arch/arm/mach-ep93xx/Kconfig"
1001
Linus Torvalds1da177e2005-04-16 15:20:36 -07001002source "arch/arm/mach-footbridge/Kconfig"
1003
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001004source "arch/arm/mach-gemini/Kconfig"
1005
Russell King95b8f202010-01-14 11:43:54 +00001006source "arch/arm/mach-h720x/Kconfig"
1007
Linus Torvalds1da177e2005-04-16 15:20:36 -07001008source "arch/arm/mach-integrator/Kconfig"
1009
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001010source "arch/arm/mach-iop32x/Kconfig"
1011
1012source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001013
Dan Williams285f5fa2006-12-07 02:59:39 +01001014source "arch/arm/mach-iop13xx/Kconfig"
1015
Linus Torvalds1da177e2005-04-16 15:20:36 -07001016source "arch/arm/mach-ixp4xx/Kconfig"
1017
Russell King95b8f202010-01-14 11:43:54 +00001018source "arch/arm/mach-kirkwood/Kconfig"
1019
1020source "arch/arm/mach-ks8695/Kconfig"
1021
Kevin Wells40805942010-07-27 08:49:04 -07001022source "arch/arm/mach-lpc32xx/Kconfig"
1023
Russell King95b8f202010-01-14 11:43:54 +00001024source "arch/arm/mach-msm/Kconfig"
1025
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001026source "arch/arm/mach-mv78xx0/Kconfig"
1027
Russell King95b8f202010-01-14 11:43:54 +00001028source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001029
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001030source "arch/arm/mach-mxs/Kconfig"
1031
Russell King95b8f202010-01-14 11:43:54 +00001032source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001033
Russell King95b8f202010-01-14 11:43:54 +00001034source "arch/arm/mach-nomadik/Kconfig"
1035source "arch/arm/plat-nomadik/Kconfig"
1036
Tony Lindgrend48af152005-07-10 19:58:17 +01001037source "arch/arm/plat-omap/Kconfig"
1038
1039source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001040
Tony Lindgren1dbae812005-11-10 14:26:51 +00001041source "arch/arm/mach-omap2/Kconfig"
1042
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001043source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001044
Russell King95b8f202010-01-14 11:43:54 +00001045source "arch/arm/mach-pxa/Kconfig"
1046source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001047
Russell King95b8f202010-01-14 11:43:54 +00001048source "arch/arm/mach-mmp/Kconfig"
1049
1050source "arch/arm/mach-realview/Kconfig"
1051
1052source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001053
Ben Dookscf383672009-11-10 00:14:58 +00001054source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001055source "arch/arm/plat-s3c24xx/Kconfig"
1056
viresh kumarcee37e52010-04-01 12:31:05 +01001057source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001058
Kukjin Kim85fd6d62012-02-06 09:38:19 +09001059source "arch/arm/mach-s3c24xx/Kconfig"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001060if ARCH_S3C24XX
Ben Dooksa21765a2007-02-11 18:31:01 +01001061source "arch/arm/mach-s3c2412/Kconfig"
1062source "arch/arm/mach-s3c2440/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001063endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001064
Ben Dooksa08ab632008-10-21 14:06:39 +01001065if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001066source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001067endif
1068
Kukjin Kim49b7a492010-09-07 15:47:18 +09001069source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001070
Byungho Min5a7652f2009-06-23 21:39:42 +09001071source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001072
Kukjin Kim170f4e42010-02-24 16:40:44 +09001073source "arch/arm/mach-s5pv210/Kconfig"
1074
Kukjin Kim83014572011-11-06 13:54:56 +09001075source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001076
Russell King882d01f2010-03-02 23:40:15 +00001077source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001078
Erik Gillingc5f80062010-01-21 16:53:02 -08001079source "arch/arm/mach-tegra/Kconfig"
1080
Russell King95b8f202010-01-14 11:43:54 +00001081source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001082
Russell King95b8f202010-01-14 11:43:54 +00001083source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001084
1085source "arch/arm/mach-versatile/Kconfig"
1086
Russell Kingceade892010-02-11 21:44:53 +00001087source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001088source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001089
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001090source "arch/arm/mach-vt8500/Kconfig"
1091
wanzongshun7ec80dd2008-12-03 03:55:38 +01001092source "arch/arm/mach-w90x900/Kconfig"
1093
Linus Torvalds1da177e2005-04-16 15:20:36 -07001094# Definitions to make life easier
1095config ARCH_ACORN
1096 bool
1097
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001098config PLAT_IOP
1099 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001100 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001101
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001102config PLAT_ORION
1103 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001104 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001105 select GENERIC_IRQ_CHIP
Andrew Lunn2f129bf2011-12-15 08:15:07 +01001106 select COMMON_CLK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001107
Eric Miaobd5ce432009-01-20 12:06:01 +08001108config PLAT_PXA
1109 bool
1110
Russell Kingf4b8b312010-01-14 12:48:06 +00001111config PLAT_VERSATILE
1112 bool
1113
Russell Kinge3887712010-01-14 13:30:16 +00001114config ARM_TIMER_SP804
1115 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001116 select CLKSRC_MMIO
Rob Herringa7bf6162011-12-12 15:29:08 -06001117 select HAVE_SCHED_CLOCK
Russell Kinge3887712010-01-14 13:30:16 +00001118
Linus Torvalds1da177e2005-04-16 15:20:36 -07001119source arch/arm/mm/Kconfig
1120
Russell King958cab02011-12-11 10:04:00 +00001121config ARM_NR_BANKS
1122 int
1123 default 16 if ARCH_EP93XX
1124 default 8
1125
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001126config IWMMXT
1127 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001128 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1129 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001130 help
1131 Enable support for iWMMXt context switching at run time if
1132 running on a CPU that supports it.
1133
Linus Torvalds1da177e2005-04-16 15:20:36 -07001134config XSCALE_PMU
1135 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001136 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001137 default y
1138
Jamie Iles0f4f0672010-02-02 20:23:15 +01001139config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001140 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001141 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001142 default y
1143 bool
1144
eric miao52108642010-12-13 09:42:34 +01001145config MULTI_IRQ_HANDLER
1146 bool
1147 help
1148 Allow each machine to specify it's own IRQ handler at run time.
1149
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001150if !MMU
1151source "arch/arm/Kconfig-nommu"
1152endif
1153
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001154config ARM_ERRATA_326103
1155 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1156 depends on CPU_V6
1157 help
1158 Executing a SWP instruction to read-only memory does not set bit 11
1159 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1160 treat the access as a read, preventing a COW from occurring and
1161 causing the faulting task to livelock.
1162
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001163config ARM_ERRATA_411920
1164 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001165 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001166 help
1167 Invalidation of the Instruction Cache operation can
1168 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1169 It does not affect the MPCore. This option enables the ARM Ltd.
1170 recommended workaround.
1171
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001172config ARM_ERRATA_430973
1173 bool "ARM errata: Stale prediction on replaced interworking branch"
1174 depends on CPU_V7
1175 help
1176 This option enables the workaround for the 430973 Cortex-A8
1177 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1178 interworking branch is replaced with another code sequence at the
1179 same virtual address, whether due to self-modifying code or virtual
1180 to physical address re-mapping, Cortex-A8 does not recover from the
1181 stale interworking branch prediction. This results in Cortex-A8
1182 executing the new code sequence in the incorrect ARM or Thumb state.
1183 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1184 and also flushes the branch target cache at every context switch.
1185 Note that setting specific bits in the ACTLR register may not be
1186 available in non-secure mode.
1187
Catalin Marinas855c5512009-04-30 17:06:15 +01001188config ARM_ERRATA_458693
1189 bool "ARM errata: Processor deadlock when a false hazard is created"
1190 depends on CPU_V7
1191 help
1192 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1193 erratum. For very specific sequences of memory operations, it is
1194 possible for a hazard condition intended for a cache line to instead
1195 be incorrectly associated with a different cache line. This false
1196 hazard might then cause a processor deadlock. The workaround enables
1197 the L1 caching of the NEON accesses and disables the PLD instruction
1198 in the ACTLR register. Note that setting specific bits in the ACTLR
1199 register may not be available in non-secure mode.
1200
Catalin Marinas0516e462009-04-30 17:06:20 +01001201config ARM_ERRATA_460075
1202 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1203 depends on CPU_V7
1204 help
1205 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1206 erratum. Any asynchronous access to the L2 cache may encounter a
1207 situation in which recent store transactions to the L2 cache are lost
1208 and overwritten with stale memory contents from external memory. The
1209 workaround disables the write-allocate mode for the L2 cache via the
1210 ACTLR register. Note that setting specific bits in the ACTLR register
1211 may not be available in non-secure mode.
1212
Will Deacon9f050272010-09-14 09:51:43 +01001213config ARM_ERRATA_742230
1214 bool "ARM errata: DMB operation may be faulty"
1215 depends on CPU_V7 && SMP
1216 help
1217 This option enables the workaround for the 742230 Cortex-A9
1218 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1219 between two write operations may not ensure the correct visibility
1220 ordering of the two writes. This workaround sets a specific bit in
1221 the diagnostic register of the Cortex-A9 which causes the DMB
1222 instruction to behave as a DSB, ensuring the correct behaviour of
1223 the two writes.
1224
Will Deacona672e992010-09-14 09:53:02 +01001225config ARM_ERRATA_742231
1226 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1227 depends on CPU_V7 && SMP
1228 help
1229 This option enables the workaround for the 742231 Cortex-A9
1230 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1231 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1232 accessing some data located in the same cache line, may get corrupted
1233 data due to bad handling of the address hazard when the line gets
1234 replaced from one of the CPUs at the same time as another CPU is
1235 accessing it. This workaround sets specific bits in the diagnostic
1236 register of the Cortex-A9 which reduces the linefill issuing
1237 capabilities of the processor.
1238
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001239config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001240 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001241 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001242 help
1243 The PL310 L2 cache controller implements three types of Clean &
1244 Invalidate maintenance operations: by Physical Address
1245 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1246 They are architecturally defined to behave as the execution of a
1247 clean operation followed immediately by an invalidate operation,
1248 both performing to the same memory location. This functionality
1249 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001250 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001251
1252config ARM_ERRATA_720789
1253 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001254 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001255 help
1256 This option enables the workaround for the 720789 Cortex-A9 (prior to
1257 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1258 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1259 As a consequence of this erratum, some TLB entries which should be
1260 invalidated are not, resulting in an incoherency in the system page
1261 tables. The workaround changes the TLB flushing routines to invalidate
1262 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001263
Russell King1f0090a2011-03-16 23:35:25 +00001264config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001265 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001266 depends on CACHE_L2X0
1267 help
1268 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1269 operation (offset 0x7FC). This operation runs in background so that
1270 PL310 can handle normal accesses while it is in progress. Under very
1271 rare circumstances, due to this erratum, write data can be lost when
1272 PL310 treats a cacheable write transaction during a Clean &
1273 Invalidate by Way operation.
1274
Will Deacon475d92f2010-09-28 14:02:02 +01001275config ARM_ERRATA_743622
1276 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1277 depends on CPU_V7
1278 help
1279 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001280 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001281 optimisation in the Cortex-A9 Store Buffer may lead to data
1282 corruption. This workaround sets a specific bit in the diagnostic
1283 register of the Cortex-A9 which disables the Store Buffer
1284 optimisation, preventing the defect from occurring. This has no
1285 visible impact on the overall performance or power consumption of the
1286 processor.
1287
Will Deacon9a27c272011-02-18 16:36:35 +01001288config ARM_ERRATA_751472
1289 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001290 depends on CPU_V7
Will Deacon9a27c272011-02-18 16:36:35 +01001291 help
1292 This option enables the workaround for the 751472 Cortex-A9 (prior
1293 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1294 completion of a following broadcasted operation if the second
1295 operation is received by a CPU before the ICIALLUIS has completed,
1296 potentially leading to corrupted entries in the cache or TLB.
1297
Will Deaconfa0ce402011-11-14 17:24:57 +01001298config PL310_ERRATA_753970
1299 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001300 depends on CACHE_PL310
1301 help
1302 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1303
1304 Under some condition the effect of cache sync operation on
1305 the store buffer still remains when the operation completes.
1306 This means that the store buffer is always asked to drain and
1307 this prevents it from merging any further writes. The workaround
1308 is to replace the normal offset of cache sync operation (0x730)
1309 by another offset targeting an unmapped PL310 register 0x740.
1310 This has the same effect as the cache sync operation: store buffer
1311 drain and waiting for all buffers empty.
1312
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001313config ARM_ERRATA_754322
1314 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1315 depends on CPU_V7
1316 help
1317 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1318 r3p*) erratum. A speculative memory access may cause a page table walk
1319 which starts prior to an ASID switch but completes afterwards. This
1320 can populate the micro-TLB with a stale entry which may be hit with
1321 the new ASID. This workaround places two dsb instructions in the mm
1322 switching code so that no page table walks can cross the ASID switch.
1323
Will Deacon5dab26af2011-03-04 12:38:54 +01001324config ARM_ERRATA_754327
1325 bool "ARM errata: no automatic Store Buffer drain"
1326 depends on CPU_V7 && SMP
1327 help
1328 This option enables the workaround for the 754327 Cortex-A9 (prior to
1329 r2p0) erratum. The Store Buffer does not have any automatic draining
1330 mechanism and therefore a livelock may occur if an external agent
1331 continuously polls a memory location waiting to observe an update.
1332 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1333 written polling loops from denying visibility of updates to memory.
1334
Catalin Marinas145e10e2011-08-15 11:04:41 +01001335config ARM_ERRATA_364296
1336 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1337 depends on CPU_V6 && !SMP
1338 help
1339 This options enables the workaround for the 364296 ARM1136
1340 r0p2 erratum (possible cache data corruption with
1341 hit-under-miss enabled). It sets the undocumented bit 31 in
1342 the auxiliary control register and the FI bit in the control
1343 register, thus disabling hit-under-miss without putting the
1344 processor into full low interrupt latency mode. ARM11MPCore
1345 is not affected.
1346
Will Deaconf630c1b2011-09-15 11:45:15 +01001347config ARM_ERRATA_764369
1348 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1349 depends on CPU_V7 && SMP
1350 help
1351 This option enables the workaround for erratum 764369
1352 affecting Cortex-A9 MPCore with two or more processors (all
1353 current revisions). Under certain timing circumstances, a data
1354 cache line maintenance operation by MVA targeting an Inner
1355 Shareable memory region may fail to proceed up to either the
1356 Point of Coherency or to the Point of Unification of the
1357 system. This workaround adds a DSB instruction before the
1358 relevant cache maintenance functions and sets a specific bit
1359 in the diagnostic control register of the SCU.
1360
Will Deacon11ed0ba2011-11-14 17:24:58 +01001361config PL310_ERRATA_769419
1362 bool "PL310 errata: no automatic Store Buffer drain"
1363 depends on CACHE_L2X0
1364 help
1365 On revisions of the PL310 prior to r3p2, the Store Buffer does
1366 not automatically drain. This can cause normal, non-cacheable
1367 writes to be retained when the memory system is idle, leading
1368 to suboptimal I/O performance for drivers using coherent DMA.
1369 This option adds a write barrier to the cpu_idle loop so that,
1370 on systems with an outer cache, the store buffer is drained
1371 explicitly.
1372
Linus Torvalds1da177e2005-04-16 15:20:36 -07001373endmenu
1374
1375source "arch/arm/common/Kconfig"
1376
Linus Torvalds1da177e2005-04-16 15:20:36 -07001377menu "Bus support"
1378
1379config ARM_AMBA
1380 bool
1381
1382config ISA
1383 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001384 help
1385 Find out whether you have ISA slots on your motherboard. ISA is the
1386 name of a bus system, i.e. the way the CPU talks to the other stuff
1387 inside your box. Other bus systems are PCI, EISA, MicroChannel
1388 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1389 newer boards don't support it. If you have ISA, say Y, otherwise N.
1390
Russell King065909b2006-01-04 15:44:16 +00001391# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001392config ISA_DMA
1393 bool
Russell King065909b2006-01-04 15:44:16 +00001394 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001395
Russell King065909b2006-01-04 15:44:16 +00001396# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001397config ISA_DMA_API
1398 bool
Al Viro5cae8412005-05-04 05:39:22 +01001399
Linus Torvalds1da177e2005-04-16 15:20:36 -07001400config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001401 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001402 help
1403 Find out whether you have a PCI motherboard. PCI is the name of a
1404 bus system, i.e. the way the CPU talks to the other stuff inside
1405 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1406 VESA. If you have PCI, say Y, otherwise N.
1407
Anton Vorontsov52882172010-04-19 13:20:49 +01001408config PCI_DOMAINS
1409 bool
1410 depends on PCI
1411
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001412config PCI_NANOENGINE
1413 bool "BSE nanoEngine PCI support"
1414 depends on SA1100_NANOENGINE
1415 help
1416 Enable PCI on the BSE nanoEngine board.
1417
Matthew Wilcox36e23592007-07-10 10:54:40 -06001418config PCI_SYSCALL
1419 def_bool PCI
1420
Linus Torvalds1da177e2005-04-16 15:20:36 -07001421# Select the host bridge type
1422config PCI_HOST_VIA82C505
1423 bool
1424 depends on PCI && ARCH_SHARK
1425 default y
1426
Mike Rapoporta0113a92007-11-25 08:55:34 +01001427config PCI_HOST_ITE8152
1428 bool
1429 depends on PCI && MACH_ARMCORE
1430 default y
1431 select DMABOUNCE
1432
Linus Torvalds1da177e2005-04-16 15:20:36 -07001433source "drivers/pci/Kconfig"
1434
1435source "drivers/pcmcia/Kconfig"
1436
1437endmenu
1438
1439menu "Kernel Features"
1440
Dave Martin3b556582011-12-07 15:38:04 +00001441config HAVE_SMP
1442 bool
1443 help
1444 This option should be selected by machines which have an SMP-
1445 capable CPU.
1446
1447 The only effect of this option is to make the SMP-related
1448 options available to the user for configuration.
1449
Linus Torvalds1da177e2005-04-16 15:20:36 -07001450config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001451 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001452 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001453 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001454 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001455 depends on MMU
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001456 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001457 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001458 help
1459 This enables support for systems with more than one CPU. If you have
1460 a system with only one CPU, like most personal computers, say N. If
1461 you have a system with more than one CPU, say Y.
1462
1463 If you say N here, the kernel will run on single and multiprocessor
1464 machines, but will use only one CPU of a multiprocessor machine. If
1465 you say Y here, the kernel will run on many, but not all, single
1466 processor machines. On a single processor machine, the kernel will
1467 run faster if you say N here.
1468
Paul Bolle395cf962011-08-15 02:02:26 +02001469 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001470 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001471 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001472
1473 If you don't know what to do here, say N.
1474
Russell Kingf00ec482010-09-04 10:47:48 +01001475config SMP_ON_UP
1476 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1477 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001478 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001479 default y
1480 help
1481 SMP kernels contain instructions which fail on non-SMP processors.
1482 Enabling this option allows the kernel to modify itself to make
1483 these instructions safe. Disabling it allows about 1K of space
1484 savings.
1485
1486 If you don't know what to do here, say Y.
1487
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001488config ARM_CPU_TOPOLOGY
1489 bool "Support cpu topology definition"
1490 depends on SMP && CPU_V7
1491 default y
1492 help
1493 Support ARM cpu topology definition. The MPIDR register defines
1494 affinity between processors which is then used to describe the cpu
1495 topology of an ARM System.
1496
1497config SCHED_MC
1498 bool "Multi-core scheduler support"
1499 depends on ARM_CPU_TOPOLOGY
1500 help
1501 Multi-core scheduler support improves the CPU scheduler's decision
1502 making when dealing with multi-core CPU chips at a cost of slightly
1503 increased overhead in some places. If unsure say N here.
1504
1505config SCHED_SMT
1506 bool "SMT scheduler support"
1507 depends on ARM_CPU_TOPOLOGY
1508 help
1509 Improves the CPU scheduler's decision making when dealing with
1510 MultiThreading at a cost of slightly increased overhead in some
1511 places. If unsure say N here.
1512
Russell Kinga8cbcd92009-05-16 11:51:14 +01001513config HAVE_ARM_SCU
1514 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001515 help
1516 This option enables support for the ARM system coherency unit
1517
Marc Zyngier022c03a2012-01-11 17:25:17 +00001518config ARM_ARCH_TIMER
1519 bool "Architected timer support"
1520 depends on CPU_V7
1521 help
1522 This option enables support for the ARM architected timer
1523
Russell Kingf32f4ce2009-05-16 12:14:21 +01001524config HAVE_ARM_TWD
1525 bool
1526 depends on SMP
1527 help
1528 This options enables support for the ARM timer and watchdog unit
1529
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001530choice
1531 prompt "Memory split"
1532 default VMSPLIT_3G
1533 help
1534 Select the desired split between kernel and user memory.
1535
1536 If you are not absolutely sure what you are doing, leave this
1537 option alone!
1538
1539 config VMSPLIT_3G
1540 bool "3G/1G user/kernel split"
1541 config VMSPLIT_2G
1542 bool "2G/2G user/kernel split"
1543 config VMSPLIT_1G
1544 bool "1G/3G user/kernel split"
1545endchoice
1546
1547config PAGE_OFFSET
1548 hex
1549 default 0x40000000 if VMSPLIT_1G
1550 default 0x80000000 if VMSPLIT_2G
1551 default 0xC0000000
1552
Linus Torvalds1da177e2005-04-16 15:20:36 -07001553config NR_CPUS
1554 int "Maximum number of CPUs (2-32)"
1555 range 2 32
1556 depends on SMP
1557 default "4"
1558
Russell Kinga054a812005-11-02 22:24:33 +00001559config HOTPLUG_CPU
1560 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1561 depends on SMP && HOTPLUG && EXPERIMENTAL
1562 help
1563 Say Y here to experiment with turning CPUs off and on. CPUs
1564 can be controlled through /sys/devices/system/cpu.
1565
Russell King37ee16a2005-11-08 19:08:05 +00001566config LOCAL_TIMERS
1567 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001568 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001569 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001570 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001571 help
1572 Enable support for local timers on SMP platforms, rather then the
1573 legacy IPI broadcast method. Local timers allows the system
1574 accounting to be spread across the timer interval, preventing a
1575 "thundering herd" at every timer tick.
1576
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001577config ARCH_NR_GPIO
1578 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001579 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Philippe Langlais70227a42012-02-13 10:51:22 +01001580 default 355 if ARCH_U8500
Paul Parsons9a01ec32012-02-27 01:58:45 +00001581 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001582 default 0
1583 help
1584 Maximum number of GPIOs in the system.
1585
1586 If unsure, leave the default value.
1587
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001588source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001589
Russell Kingf8065812006-03-02 22:41:59 +00001590config HZ
1591 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001592 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001593 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001594 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001595 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001596 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001597 default 100
1598
Catalin Marinas16c79652009-07-24 12:33:02 +01001599config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001600 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001601 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001602 select AEABI
1603 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001604 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001605 help
1606 By enabling this option, the kernel will be compiled in
1607 Thumb-2 mode. A compiler/assembler that understand the unified
1608 ARM-Thumb syntax is needed.
1609
1610 If unsure, say N.
1611
Dave Martin6f685c52011-03-03 11:41:12 +01001612config THUMB2_AVOID_R_ARM_THM_JUMP11
1613 bool "Work around buggy Thumb-2 short branch relocations in gas"
1614 depends on THUMB2_KERNEL && MODULES
1615 default y
1616 help
1617 Various binutils versions can resolve Thumb-2 branches to
1618 locally-defined, preemptible global symbols as short-range "b.n"
1619 branch instructions.
1620
1621 This is a problem, because there's no guarantee the final
1622 destination of the symbol, or any candidate locations for a
1623 trampoline, are within range of the branch. For this reason, the
1624 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1625 relocation in modules at all, and it makes little sense to add
1626 support.
1627
1628 The symptom is that the kernel fails with an "unsupported
1629 relocation" error when loading some modules.
1630
1631 Until fixed tools are available, passing
1632 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1633 code which hits this problem, at the cost of a bit of extra runtime
1634 stack usage in some cases.
1635
1636 The problem is described in more detail at:
1637 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1638
1639 Only Thumb-2 kernels are affected.
1640
1641 Unless you are sure your tools don't have this problem, say Y.
1642
Catalin Marinas0becb082009-07-24 12:32:53 +01001643config ARM_ASM_UNIFIED
1644 bool
1645
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001646config AEABI
1647 bool "Use the ARM EABI to compile the kernel"
1648 help
1649 This option allows for the kernel to be compiled using the latest
1650 ARM ABI (aka EABI). This is only useful if you are using a user
1651 space environment that is also compiled with EABI.
1652
1653 Since there are major incompatibilities between the legacy ABI and
1654 EABI, especially with regard to structure member alignment, this
1655 option also changes the kernel syscall calling convention to
1656 disambiguate both ABIs and allow for backward compatibility support
1657 (selected with CONFIG_OABI_COMPAT).
1658
1659 To use this you need GCC version 4.0.0 or later.
1660
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001661config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001662 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001663 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001664 default y
1665 help
1666 This option preserves the old syscall interface along with the
1667 new (ARM EABI) one. It also provides a compatibility layer to
1668 intercept syscalls that have structure arguments which layout
1669 in memory differs between the legacy ABI and the new ARM EABI
1670 (only for non "thumb" binaries). This option adds a tiny
1671 overhead to all syscalls and produces a slightly larger kernel.
1672 If you know you'll be using only pure EABI user space then you
1673 can say N here. If this option is not selected and you attempt
1674 to execute a legacy ABI binary then the result will be
1675 UNPREDICTABLE (in fact it can be predicted that it won't work
1676 at all). If in doubt say Y.
1677
Mel Gormaneb335752009-05-13 17:34:48 +01001678config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001679 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001680
Russell King05944d72006-11-30 20:43:51 +00001681config ARCH_SPARSEMEM_ENABLE
1682 bool
1683
Russell King07a2f732008-10-01 21:39:58 +01001684config ARCH_SPARSEMEM_DEFAULT
1685 def_bool ARCH_SPARSEMEM_ENABLE
1686
Russell King05944d72006-11-30 20:43:51 +00001687config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001688 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001689
Will Deacon7b7bf492011-05-19 13:21:14 +01001690config HAVE_ARCH_PFN_VALID
1691 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1692
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001693config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001694 bool "High Memory Support"
1695 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001696 help
1697 The address space of ARM processors is only 4 Gigabytes large
1698 and it has to accommodate user address space, kernel address
1699 space as well as some memory mapped IO. That means that, if you
1700 have a large amount of physical memory and/or IO, not all of the
1701 memory can be "permanently mapped" by the kernel. The physical
1702 memory that is not permanently mapped is called "high memory".
1703
1704 Depending on the selected kernel/user memory split, minimum
1705 vmalloc space and actual amount of RAM, you may not need this
1706 option which should result in a slightly faster kernel.
1707
1708 If unsure, say n.
1709
Russell King65cec8e2009-08-17 20:02:06 +01001710config HIGHPTE
1711 bool "Allocate 2nd-level pagetables from highmem"
1712 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001713
Jamie Iles1b8873a2010-02-02 20:25:44 +01001714config HW_PERF_EVENTS
1715 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001716 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001717 default y
1718 help
1719 Enable hardware performance counter support for perf events. If
1720 disabled, perf events will use software events only.
1721
Dave Hansen3f22ab22005-06-23 00:07:43 -07001722source "mm/Kconfig"
1723
Magnus Dammc1b2d972010-07-05 10:00:11 +01001724config FORCE_MAX_ZONEORDER
1725 int "Maximum zone order" if ARCH_SHMOBILE
1726 range 11 64 if ARCH_SHMOBILE
1727 default "9" if SA1111
1728 default "11"
1729 help
1730 The kernel memory allocator divides physically contiguous memory
1731 blocks into "zones", where each zone is a power of two number of
1732 pages. This option selects the largest power of two that the kernel
1733 keeps in the memory allocator. If you need to allocate very large
1734 blocks of physically contiguous memory, then you may need to
1735 increase this value.
1736
1737 This config option is actually maximum order plus one. For example,
1738 a value of 11 means that the largest free memory block is 2^10 pages.
1739
Linus Torvalds1da177e2005-04-16 15:20:36 -07001740config LEDS
1741 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001742 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001743 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001744 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1745 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001746 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001747 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001748 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001749 help
1750 If you say Y here, the LEDs on your machine will be used
1751 to provide useful information about your current system status.
1752
1753 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1754 be able to select which LEDs are active using the options below. If
1755 you are compiling a kernel for the EBSA-110 or the LART however, the
1756 red LED will simply flash regularly to indicate that the system is
1757 still functional. It is safe to say Y here if you have a CATS
1758 system, but the driver will do nothing.
1759
1760config LEDS_TIMER
1761 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001762 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1763 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001764 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001765 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001766 default y if ARCH_EBSA110
1767 help
1768 If you say Y here, one of the system LEDs (the green one on the
1769 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1770 will flash regularly to indicate that the system is still
1771 operational. This is mainly useful to kernel hackers who are
1772 debugging unstable kernels.
1773
1774 The LART uses the same LED for both Timer LED and CPU usage LED
1775 functions. You may choose to use both, but the Timer LED function
1776 will overrule the CPU usage LED.
1777
1778config LEDS_CPU
1779 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001780 !ARCH_OMAP) \
1781 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1782 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001783 depends on LEDS
1784 help
1785 If you say Y here, the red LED will be used to give a good real
1786 time indication of CPU usage, by lighting whenever the idle task
1787 is not currently executing.
1788
1789 The LART uses the same LED for both Timer LED and CPU usage LED
1790 functions. You may choose to use both, but the Timer LED function
1791 will overrule the CPU usage LED.
1792
1793config ALIGNMENT_TRAP
1794 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001795 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001796 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001797 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001798 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001799 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001800 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1801 address divisible by 4. On 32-bit ARM processors, these non-aligned
1802 fetch/store instructions will be emulated in software if you say
1803 here, which has a severe performance impact. This is necessary for
1804 correct operation of some network protocols. With an IP-only
1805 configuration it is safe to say N, otherwise say Y.
1806
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001807config UACCESS_WITH_MEMCPY
1808 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1809 depends on MMU && EXPERIMENTAL
1810 default y if CPU_FEROCEON
1811 help
1812 Implement faster copy_to_user and clear_user methods for CPU
1813 cores where a 8-word STM instruction give significantly higher
1814 memory write throughput than a sequence of individual 32bit stores.
1815
1816 A possible side effect is a slight increase in scheduling latency
1817 between threads sharing the same address space if they invoke
1818 such copy operations with large buffers.
1819
1820 However, if the CPU data cache is using a write-allocate mode,
1821 this option is unlikely to provide any performance gain.
1822
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001823config SECCOMP
1824 bool
1825 prompt "Enable seccomp to safely compute untrusted bytecode"
1826 ---help---
1827 This kernel feature is useful for number crunching applications
1828 that may need to compute untrusted bytecode during their
1829 execution. By using pipes or other transports made available to
1830 the process as file descriptors supporting the read/write
1831 syscalls, it's possible to isolate those applications in
1832 their own address space using seccomp. Once seccomp is
1833 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1834 and the task is only allowed to execute a few safe syscalls
1835 defined by each seccomp mode.
1836
Nicolas Pitrec743f382010-05-24 23:55:42 -04001837config CC_STACKPROTECTOR
1838 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001839 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001840 help
1841 This option turns on the -fstack-protector GCC feature. This
1842 feature puts, at the beginning of functions, a canary value on
1843 the stack just before the return address, and validates
1844 the value just before actually returning. Stack based buffer
1845 overflows (that need to overwrite this return address) now also
1846 overwrite the canary, which gets detected and the attack is then
1847 neutralized via a kernel panic.
1848 This feature requires gcc version 4.2 or above.
1849
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001850config DEPRECATED_PARAM_STRUCT
1851 bool "Provide old way to pass kernel parameters"
1852 help
1853 This was deprecated in 2001 and announced to live on for 5 years.
1854 Some old boot loaders still use this way.
1855
Linus Torvalds1da177e2005-04-16 15:20:36 -07001856endmenu
1857
1858menu "Boot options"
1859
Grant Likely9eb8f672011-04-28 14:27:20 -06001860config USE_OF
1861 bool "Flattened Device Tree support"
1862 select OF
1863 select OF_EARLY_FLATTREE
Grant Likely08a543a2011-07-26 03:19:06 -06001864 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001865 help
1866 Include support for flattened device tree machine descriptions.
1867
Linus Torvalds1da177e2005-04-16 15:20:36 -07001868# Compressed boot loader in ROM. Yes, we really want to ask about
1869# TEXT and BSS so we preserve their values in the config files.
1870config ZBOOT_ROM_TEXT
1871 hex "Compressed ROM boot loader base address"
1872 default "0"
1873 help
1874 The physical address at which the ROM-able zImage is to be
1875 placed in the target. Platforms which normally make use of
1876 ROM-able zImage formats normally set this to a suitable
1877 value in their defconfig file.
1878
1879 If ZBOOT_ROM is not enabled, this has no effect.
1880
1881config ZBOOT_ROM_BSS
1882 hex "Compressed ROM boot loader BSS address"
1883 default "0"
1884 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001885 The base address of an area of read/write memory in the target
1886 for the ROM-able zImage which must be available while the
1887 decompressor is running. It must be large enough to hold the
1888 entire decompressed kernel plus an additional 128 KiB.
1889 Platforms which normally make use of ROM-able zImage formats
1890 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001891
1892 If ZBOOT_ROM is not enabled, this has no effect.
1893
1894config ZBOOT_ROM
1895 bool "Compressed boot loader in ROM/flash"
1896 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1897 help
1898 Say Y here if you intend to execute your compressed kernel image
1899 (zImage) directly from ROM or flash. If unsure, say N.
1900
Simon Horman090ab3f2011-04-26 06:29:53 +01001901choice
1902 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1903 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1904 default ZBOOT_ROM_NONE
1905 help
1906 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001907 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001908 kernel image to an MMC or SD card and boot the kernel straight
1909 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001910 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001911 rest the kernel image to RAM.
1912
1913config ZBOOT_ROM_NONE
1914 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1915 help
1916 Do not load image from SD or MMC
1917
Simon Hormanf45b1142011-01-11 04:01:08 +01001918config ZBOOT_ROM_MMCIF
1919 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001920 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001921 Load image from MMCIF hardware block.
1922
1923config ZBOOT_ROM_SH_MOBILE_SDHI
1924 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1925 help
1926 Load image from SDHI hardware block
1927
1928endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001929
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001930config ARM_APPENDED_DTB
1931 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1932 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1933 help
1934 With this option, the boot code will look for a device tree binary
1935 (DTB) appended to zImage
1936 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1937
1938 This is meant as a backward compatibility convenience for those
1939 systems with a bootloader that can't be upgraded to accommodate
1940 the documented boot protocol using a device tree.
1941
1942 Beware that there is very little in terms of protection against
1943 this option being confused by leftover garbage in memory that might
1944 look like a DTB header after a reboot if no actual DTB is appended
1945 to zImage. Do not leave this option active in a production kernel
1946 if you don't intend to always append a DTB. Proper passing of the
1947 location into r2 of a bootloader provided DTB is always preferable
1948 to this option.
1949
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001950config ARM_ATAG_DTB_COMPAT
1951 bool "Supplement the appended DTB with traditional ATAG information"
1952 depends on ARM_APPENDED_DTB
1953 help
1954 Some old bootloaders can't be updated to a DTB capable one, yet
1955 they provide ATAGs with memory configuration, the ramdisk address,
1956 the kernel cmdline string, etc. Such information is dynamically
1957 provided by the bootloader and can't always be stored in a static
1958 DTB. To allow a device tree enabled kernel to be used with such
1959 bootloaders, this option allows zImage to extract the information
1960 from the ATAG list and store it at run time into the appended DTB.
1961
Linus Torvalds1da177e2005-04-16 15:20:36 -07001962config CMDLINE
1963 string "Default kernel command string"
1964 default ""
1965 help
1966 On some architectures (EBSA110 and CATS), there is currently no way
1967 for the boot loader to pass arguments to the kernel. For these
1968 architectures, you should supply some command-line options at build
1969 time by entering them here. As a minimum, you should specify the
1970 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1971
Victor Boivie4394c122011-05-04 17:07:55 +01001972choice
1973 prompt "Kernel command line type" if CMDLINE != ""
1974 default CMDLINE_FROM_BOOTLOADER
1975
1976config CMDLINE_FROM_BOOTLOADER
1977 bool "Use bootloader kernel arguments if available"
1978 help
1979 Uses the command-line options passed by the boot loader. If
1980 the boot loader doesn't provide any, the default kernel command
1981 string provided in CMDLINE will be used.
1982
1983config CMDLINE_EXTEND
1984 bool "Extend bootloader kernel arguments"
1985 help
1986 The command-line arguments provided by the boot loader will be
1987 appended to the default kernel command string.
1988
Alexander Holler92d20402010-02-16 19:04:53 +01001989config CMDLINE_FORCE
1990 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001991 help
1992 Always use the default kernel command string, even if the boot
1993 loader passes other arguments to the kernel.
1994 This is useful if you cannot or don't want to change the
1995 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001996endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001997
Linus Torvalds1da177e2005-04-16 15:20:36 -07001998config XIP_KERNEL
1999 bool "Kernel Execute-In-Place from ROM"
Catalin Marinas497b7e92011-11-22 17:30:32 +00002000 depends on !ZBOOT_ROM && !ARM_LPAE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002001 help
2002 Execute-In-Place allows the kernel to run from non-volatile storage
2003 directly addressable by the CPU, such as NOR flash. This saves RAM
2004 space since the text section of the kernel is not loaded from flash
2005 to RAM. Read-write sections, such as the data section and stack,
2006 are still copied to RAM. The XIP kernel is not compressed since
2007 it has to run directly from flash, so it will take more space to
2008 store it. The flash address used to link the kernel object files,
2009 and for storing it, is configuration dependent. Therefore, if you
2010 say Y here, you must know the proper physical address where to
2011 store the kernel image depending on your own flash memory usage.
2012
2013 Also note that the make target becomes "make xipImage" rather than
2014 "make zImage" or "make Image". The final kernel binary to put in
2015 ROM memory will be arch/arm/boot/xipImage.
2016
2017 If unsure, say N.
2018
2019config XIP_PHYS_ADDR
2020 hex "XIP Kernel Physical Location"
2021 depends on XIP_KERNEL
2022 default "0x00080000"
2023 help
2024 This is the physical address in your flash memory the kernel will
2025 be linked for and stored to. This address is dependent on your
2026 own flash usage.
2027
Richard Purdiec587e4a2007-02-06 21:29:00 +01002028config KEXEC
2029 bool "Kexec system call (EXPERIMENTAL)"
Will Deacon02b73e22011-06-06 15:49:23 +01002030 depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002031 help
2032 kexec is a system call that implements the ability to shutdown your
2033 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002034 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002035 you can start any kernel with it, not just Linux.
2036
2037 It is an ongoing process to be certain the hardware in a machine
2038 is properly shutdown, so do not be surprised if this code does not
2039 initially work for you. It may help to enable device hotplugging
2040 support.
2041
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002042config ATAGS_PROC
2043 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01002044 depends on KEXEC
2045 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002046 help
2047 Should the atags used to boot the kernel be exported in an "atags"
2048 file in procfs. Useful with kexec.
2049
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002050config CRASH_DUMP
2051 bool "Build kdump crash kernel (EXPERIMENTAL)"
2052 depends on EXPERIMENTAL
2053 help
2054 Generate crash dump after being started by kexec. This should
2055 be normally only set in special crash dump kernels which are
2056 loaded in the main kernel with kexec-tools into a specially
2057 reserved region and then later executed after a crash by
2058 kdump/kexec. The crash dump kernel must be compiled to a
2059 memory address not used by the main kernel
2060
2061 For more details see Documentation/kdump/kdump.txt
2062
Eric Miaoe69edc792010-07-05 15:56:50 +02002063config AUTO_ZRELADDR
2064 bool "Auto calculation of the decompressed kernel image address"
2065 depends on !ZBOOT_ROM && !ARCH_U300
2066 help
2067 ZRELADDR is the physical address where the decompressed kernel
2068 image will be placed. If AUTO_ZRELADDR is selected, the address
2069 will be determined at run-time by masking the current IP with
2070 0xf8000000. This assumes the zImage being placed in the first 128MB
2071 from start of memory.
2072
Linus Torvalds1da177e2005-04-16 15:20:36 -07002073endmenu
2074
Russell Kingac9d7ef2008-08-18 17:26:00 +01002075menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002076
Ben Dooks89c52ed2009-07-30 23:23:24 +01002077if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002078
2079source "drivers/cpufreq/Kconfig"
2080
Yong Shen64f102b2010-10-21 21:18:59 +08002081config CPU_FREQ_IMX
2082 tristate "CPUfreq driver for i.MX CPUs"
2083 depends on ARCH_MXC && CPU_FREQ
2084 help
2085 This enables the CPUfreq driver for i.MX CPUs.
2086
Linus Torvalds1da177e2005-04-16 15:20:36 -07002087config CPU_FREQ_SA1100
2088 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002089
2090config CPU_FREQ_SA1110
2091 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002092
2093config CPU_FREQ_INTEGRATOR
2094 tristate "CPUfreq driver for ARM Integrator CPUs"
2095 depends on ARCH_INTEGRATOR && CPU_FREQ
2096 default y
2097 help
2098 This enables the CPUfreq driver for ARM Integrator CPUs.
2099
2100 For details, take a look at <file:Documentation/cpu-freq>.
2101
2102 If in doubt, say Y.
2103
Russell King9e2697f2007-12-14 13:30:14 +00002104config CPU_FREQ_PXA
2105 bool
2106 depends on CPU_FREQ && ARCH_PXA && PXA25x
2107 default y
Arnd Bergmannca7d1562011-10-01 22:03:51 +02002108 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002109 select CPU_FREQ_DEFAULT_GOV_USERSPACE
2110
Ben Dooks9d56c022009-07-30 23:23:25 +01002111config CPU_FREQ_S3C
2112 bool
2113 help
2114 Internal configuration node for common cpufreq on Samsung SoC
2115
2116config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002117 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09002118 depends on ARCH_S3C24XX && CPU_FREQ && EXPERIMENTAL
Ben Dooks9d56c022009-07-30 23:23:25 +01002119 select CPU_FREQ_S3C
2120 help
2121 This enables the CPUfreq driver for the Samsung S3C24XX family
2122 of CPUs.
2123
2124 For details, take a look at <file:Documentation/cpu-freq>.
2125
2126 If in doubt, say N.
2127
2128config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002129 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002130 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2131 help
2132 Compile in support for changing the PLL frequency from the
2133 S3C24XX series CPUfreq driver. The PLL takes time to settle
2134 after a frequency change, so by default it is not enabled.
2135
2136 This also means that the PLL tables for the selected CPU(s) will
2137 be built which may increase the size of the kernel image.
2138
2139config CPU_FREQ_S3C24XX_DEBUG
2140 bool "Debug CPUfreq Samsung driver core"
2141 depends on CPU_FREQ_S3C24XX
2142 help
2143 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2144
2145config CPU_FREQ_S3C24XX_IODEBUG
2146 bool "Debug CPUfreq Samsung driver IO timing"
2147 depends on CPU_FREQ_S3C24XX
2148 help
2149 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2150
Ben Dookse6d197a2009-07-30 23:23:42 +01002151config CPU_FREQ_S3C24XX_DEBUGFS
2152 bool "Export debugfs for CPUFreq"
2153 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2154 help
2155 Export status information via debugfs.
2156
Linus Torvalds1da177e2005-04-16 15:20:36 -07002157endif
2158
Russell Kingac9d7ef2008-08-18 17:26:00 +01002159source "drivers/cpuidle/Kconfig"
2160
2161endmenu
2162
Linus Torvalds1da177e2005-04-16 15:20:36 -07002163menu "Floating point emulation"
2164
2165comment "At least one emulation must be selected"
2166
2167config FPE_NWFPE
2168 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002169 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002170 ---help---
2171 Say Y to include the NWFPE floating point emulator in the kernel.
2172 This is necessary to run most binaries. Linux does not currently
2173 support floating point hardware so you need to say Y here even if
2174 your machine has an FPA or floating point co-processor podule.
2175
2176 You may say N here if you are going to load the Acorn FPEmulator
2177 early in the bootup.
2178
2179config FPE_NWFPE_XP
2180 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002181 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002182 help
2183 Say Y to include 80-bit support in the kernel floating-point
2184 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2185 Note that gcc does not generate 80-bit operations by default,
2186 so in most cases this option only enlarges the size of the
2187 floating point emulator without any good reason.
2188
2189 You almost surely want to say N here.
2190
2191config FPE_FASTFPE
2192 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002193 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002194 ---help---
2195 Say Y here to include the FAST floating point emulator in the kernel.
2196 This is an experimental much faster emulator which now also has full
2197 precision for the mantissa. It does not support any exceptions.
2198 It is very simple, and approximately 3-6 times faster than NWFPE.
2199
2200 It should be sufficient for most programs. It may be not suitable
2201 for scientific calculations, but you have to check this for yourself.
2202 If you do not feel you need a faster FP emulation you should better
2203 choose NWFPE.
2204
2205config VFP
2206 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002207 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002208 help
2209 Say Y to include VFP support code in the kernel. This is needed
2210 if your hardware includes a VFP unit.
2211
2212 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2213 release notes and additional status information.
2214
2215 Say N if your target does not have VFP hardware.
2216
Catalin Marinas25ebee02007-09-25 15:22:24 +01002217config VFPv3
2218 bool
2219 depends on VFP
2220 default y if CPU_V7
2221
Catalin Marinasb5872db2008-01-10 19:16:17 +01002222config NEON
2223 bool "Advanced SIMD (NEON) Extension support"
2224 depends on VFPv3 && CPU_V7
2225 help
2226 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2227 Extension.
2228
Linus Torvalds1da177e2005-04-16 15:20:36 -07002229endmenu
2230
2231menu "Userspace binary formats"
2232
2233source "fs/Kconfig.binfmt"
2234
2235config ARTHUR
2236 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002237 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002238 help
2239 Say Y here to include the kernel code necessary if you want to run
2240 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2241 experimental; if this sounds frightening, say N and sleep in peace.
2242 You can also say M here to compile this support as a module (which
2243 will be called arthur).
2244
2245endmenu
2246
2247menu "Power management options"
2248
Russell Kingeceab4a2005-11-15 11:31:41 +00002249source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002250
Johannes Bergf4cb5702007-12-08 02:14:00 +01002251config ARCH_SUSPEND_POSSIBLE
Stephen Warren3d5e8af2012-04-13 15:30:07 -06002252 depends on !ARCH_S5PC100 && !ARCH_TEGRA
Russell King6a786182011-04-02 10:15:28 +01002253 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
Chao Xie3f5d0812012-05-07 11:23:58 +08002254 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002255 def_bool y
2256
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002257config ARM_CPU_SUSPEND
2258 def_bool PM_SLEEP
2259
Linus Torvalds1da177e2005-04-16 15:20:36 -07002260endmenu
2261
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002262source "net/Kconfig"
2263
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002264source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002265
2266source "fs/Kconfig"
2267
Linus Torvalds1da177e2005-04-16 15:20:36 -07002268source "arch/arm/Kconfig.debug"
2269
2270source "security/Kconfig"
2271
2272source "crypto/Kconfig"
2273
2274source "lib/Kconfig"