blob: 6f8cf405d3ecfaaef052bbfdf16828fdea569ebc [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
Linus Walleija6131632012-06-11 17:33:12 +0200257 select COMMON_CLK
258 select CLK_VERSATILE
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
Linus Walleija6131632012-06-11 17:33:12 +0200280 select PLAT_VERSATILE_CLOCK
Russell King3cb5ee42011-01-18 20:13:20 +0000281 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000282 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100283 select GPIO_PL061 if GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400284 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100285 help
286 This enables support for ARM Ltd RealView boards.
287
288config ARCH_VERSATILE
289 bool "ARM Ltd. Versatile family"
290 select ARM_AMBA
291 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100292 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900293 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000294 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100295 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100296 select ARCH_WANT_OPTIONAL_GPIOLIB
Arnd Bergmann9b0f7e32012-06-11 09:03:58 -0500297 select NEED_MACH_IO_H if PCI
Russell Kingf4b8b312010-01-14 12:48:06 +0000298 select PLAT_VERSATILE
Linus Walleija6131632012-06-11 17:33:12 +0200299 select PLAT_VERSATILE_CLOCK
Russell King3414ba82011-01-18 20:12:10 +0000300 select PLAT_VERSATILE_CLCD
Russell Kingc41b16f2011-01-19 15:32:15 +0000301 select PLAT_VERSATILE_FPGA_IRQ
Russell Kinge3887712010-01-14 13:30:16 +0000302 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100303 help
304 This enables support for ARM Ltd Versatile board.
305
Russell Kingceade892010-02-11 21:44:53 +0000306config ARCH_VEXPRESS
307 bool "ARM Ltd. Versatile Express family"
308 select ARCH_WANT_OPTIONAL_GPIOLIB
309 select ARM_AMBA
310 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100311 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900312 select HAVE_MACH_CLKDEV
Russell Kingceade892010-02-11 21:44:53 +0000313 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000314 select HAVE_CLK
Nick Bowler95c34f82011-01-21 15:51:06 +0100315 select HAVE_PATA_PLATFORM
Russell Kingceade892010-02-11 21:44:53 +0000316 select ICST
Russell Kingba81f502012-02-15 11:55:22 +0000317 select NO_IOPORT
Russell Kingceade892010-02-11 21:44:53 +0000318 select PLAT_VERSATILE
Linus Walleija6131632012-06-11 17:33:12 +0200319 select PLAT_VERSATILE_CLOCK
Russell King0fb44b92011-01-18 20:13:51 +0000320 select PLAT_VERSATILE_CLCD
Russell Kingceade892010-02-11 21:44:53 +0000321 help
322 This enables support for the ARM Ltd Versatile Express boards.
323
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100324config ARCH_AT91
325 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100326 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700327 select HAVE_CLK
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100328 select CLKDEV_LOOKUP
Nicolas Ferree2615012011-11-22 22:26:09 +0100329 select IRQ_DOMAIN
Rob Herring1ac02d72012-04-04 17:48:04 -0500330 select NEED_MACH_IO_H if PCCARD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100331 help
Nicolas Ferre929e9942012-03-15 12:21:12 +0100332 This enables support for systems based on Atmel
333 AT91RM9200 and AT91SAM9* processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100334
Russell Kingccf50e22010-03-15 19:03:06 +0000335config ARCH_BCMRING
336 bool "Broadcom BCMRING"
337 depends on MMU
338 select CPU_V6
339 select ARM_AMBA
Russell King82d63732011-05-12 13:43:39 +0100340 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100341 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000342 select GENERIC_CLOCKEVENTS
343 select ARCH_WANT_OPTIONAL_GPIOLIB
344 help
345 Support for Broadcom's BCMRing platform.
346
Rob Herring220e6cf2011-06-07 10:02:55 -0500347config ARCH_HIGHBANK
348 bool "Calxeda Highbank-based"
349 select ARCH_WANT_OPTIONAL_GPIOLIB
350 select ARM_AMBA
351 select ARM_GIC
352 select ARM_TIMER_SP804
Dave Martin22d80372011-12-12 16:17:34 +0000353 select CACHE_L2X0
Rob Herring220e6cf2011-06-07 10:02:55 -0500354 select CLKDEV_LOOKUP
355 select CPU_V7
356 select GENERIC_CLOCKEVENTS
357 select HAVE_ARM_SCU
Dave Martin3b556582011-12-07 15:38:04 +0000358 select HAVE_SMP
Rob Herringfdfa64a2012-01-03 14:44:31 -0600359 select SPARSE_IRQ
Rob Herring220e6cf2011-06-07 10:02:55 -0500360 select USE_OF
361 help
362 Support for the Calxeda Highbank SoC based boards.
363
Linus Torvalds1da177e2005-04-16 15:20:36 -0700364config ARCH_CLPS711X
Alexander Shiyan0e2fce52012-05-14 21:46:10 +0400365 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000366 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000367 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400368 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000369 help
Alexander Shiyan0e2fce52012-05-14 21:46:10 +0400370 Support for Cirrus Logic 711x/721x/731x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700371
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300372config ARCH_CNS3XXX
373 bool "Cavium Networks CNS3XXX family"
Imre Kaloz00d27112011-07-07 12:19:09 +0200374 select CPU_V6K
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300375 select GENERIC_CLOCKEVENTS
376 select ARM_GIC
Dave Martince5ea9f2011-11-29 15:56:19 +0000377 select MIGHT_HAVE_CACHE_L2X0
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100378 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400379 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300380 help
381 Support for Cavium Networks CNS3XXX platform.
382
Russell King788c9702009-04-26 14:21:59 +0100383config ARCH_GEMINI
384 bool "Cortina Systems Gemini"
385 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100386 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000387 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100388 help
389 Support for the Cortina Systems Gemini family SoCs
390
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200391config ARCH_PRIMA2
392 bool "CSR SiRFSoC PRIMA2 ARM Cortex A9 Platform"
393 select CPU_V7
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200394 select NO_IOPORT
395 select GENERIC_CLOCKEVENTS
396 select CLKDEV_LOOKUP
397 select GENERIC_IRQ_CHIP
Dave Martince5ea9f2011-11-29 15:56:19 +0000398 select MIGHT_HAVE_CACHE_L2X0
Barry Songcbd8d842012-05-15 10:35:46 +0800399 select PINCTRL
400 select PINCTRL_SIRF
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200401 select USE_OF
402 select ZONE_DMA
403 help
404 Support for CSR SiRFSoC ARM Cortex A9 Platform
405
Linus Torvalds1da177e2005-04-16 15:20:36 -0700406config ARCH_EBSA110
407 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000408 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100409 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000410 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000411 select ARCH_USES_GETTIMEOFFSET
Rob Herringc334bc12012-03-04 22:03:33 -0600412 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400413 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700414 help
415 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000416 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700417 Ethernet interface, two PCMCIA sockets, two serial ports and a
418 parallel port.
419
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000420config ARCH_EP93XX
421 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000422 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000423 select ARM_AMBA
424 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100425 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700426 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100427 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000428 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100429 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000430 help
431 This enables support for the Cirrus EP93xx series of CPUs.
432
Linus Torvalds1da177e2005-04-16 15:20:36 -0700433config ARCH_FOOTBRIDGE
434 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000435 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000437 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200438 select HAVE_IDE
Rob Herringc334bc12012-03-04 22:03:33 -0600439 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400440 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000441 help
442 Support for systems based on the DC21285 companion chip
443 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700444
Russell King788c9702009-04-26 14:21:59 +0100445config ARCH_MXC
446 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100447 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100448 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100449 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100450 select CLKSRC_MMIO
Shawn Guo8b6c44f2011-06-07 13:59:14 +0800451 select GENERIC_IRQ_CHIP
Sascha Hauerffa2ea32011-09-20 14:31:24 +0200452 select MULTI_IRQ_HANDLER
Russell King788c9702009-04-26 14:21:59 +0100453 help
454 Support for Freescale MXC/iMX-based family of processors
455
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800456config ARCH_MXS
457 bool "Freescale MXS-based"
458 select GENERIC_CLOCKEVENTS
459 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100460 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100461 select CLKSRC_MMIO
Shawn Guo26646812012-04-29 00:02:39 +0800462 select COMMON_CLK
Shawn Guo6abda3e2011-12-20 16:12:34 +0800463 select HAVE_CLK_PREPARE
Shawn Guoa0f5e362012-05-06 23:13:13 +0800464 select PINCTRL
Shawn Guo6c4d4ef2012-05-04 21:42:41 +0800465 select USE_OF
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800466 help
467 Support for Freescale MXS-based family of processors
468
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100469config ARCH_NETX
470 bool "Hilscher NetX based"
Russell King234b6ced2011-05-08 14:09:47 +0100471 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000472 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100473 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100474 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000475 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100476 This enables support for systems based on the Hilscher NetX Soc
477
478config ARCH_H720X
479 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000480 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100481 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000482 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100483 help
484 This enables support for systems based on the Hynix HMS720x
485
Russell King3b938be2007-05-12 11:25:44 +0100486config ARCH_IOP13XX
487 bool "IOP13xx-based"
488 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000489 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100490 select PLAT_IOP
491 select PCI
492 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100493 select VMSPLIT_1G
Rob Herringc334bc12012-03-04 22:03:33 -0600494 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400495 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600496 select NEED_RET_TO_USER
Russell King3b938be2007-05-12 11:25:44 +0100497 help
498 Support for Intel's IOP13XX (XScale) family of processors.
499
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100500config ARCH_IOP32X
501 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100502 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000503 select CPU_XSCALE
Rob Herringc334bc12012-03-04 22:03:33 -0600504 select NEED_MACH_IO_H
Rob Herring13a50452012-02-07 09:28:22 -0600505 select NEED_RET_TO_USER
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100506 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100507 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100508 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000509 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100510 Support for Intel's 80219 and IOP32X (XScale) family of
511 processors.
512
513config ARCH_IOP33X
514 bool "IOP33x-based"
515 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000516 select CPU_XSCALE
Rob Herringc334bc12012-03-04 22:03:33 -0600517 select NEED_MACH_IO_H
Rob Herring13a50452012-02-07 09:28:22 -0600518 select NEED_RET_TO_USER
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100519 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100520 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100521 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100522 help
523 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700524
Russell King3b938be2007-05-12 11:25:44 +0100525config ARCH_IXP4XX
526 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100527 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500528 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell King234b6ced2011-05-08 14:09:47 +0100529 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000530 select CPU_XSCALE
Richard Cochran9dde0ae2012-05-23 18:19:51 +0200531 select ARCH_REQUIRE_GPIOLIB
Russell King3b938be2007-05-12 11:25:44 +0100532 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100533 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600534 select NEED_MACH_IO_H
Russell King485bdde2008-10-17 14:00:43 +0100535 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100536 help
Russell King3b938be2007-05-12 11:25:44 +0100537 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100538
Saeed Bisharaedabd382009-08-06 15:12:43 +0300539config ARCH_DOVE
540 bool "Marvell Dove"
Konstantin Porotchkin7b769bb2011-04-07 13:49:41 +0300541 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300542 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300543 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300544 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600545 select NEED_MACH_IO_H
Saeed Bisharaedabd382009-08-06 15:12:43 +0300546 select PLAT_ORION
547 help
548 Support for the Marvell Dove SoC 88AP510
549
Saeed Bishara651c74c2008-06-22 22:45:06 +0200550config ARCH_KIRKWOOD
551 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000552 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200553 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700554 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200555 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600556 select NEED_MACH_IO_H
Saeed Bishara651c74c2008-06-22 22:45:06 +0200557 select PLAT_ORION
558 help
559 Support for the following Marvell Kirkwood series SoCs:
560 88F6180, 88F6192 and 88F6281.
561
Kevin Wells40805942010-07-27 08:49:04 -0700562config ARCH_LPC32XX
563 bool "NXP LPC32XX"
Russell King234b6ced2011-05-08 14:09:47 +0100564 select CLKSRC_MMIO
Kevin Wells40805942010-07-27 08:49:04 -0700565 select CPU_ARM926T
566 select ARCH_REQUIRE_GPIOLIB
567 select HAVE_IDE
568 select ARM_AMBA
569 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100570 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700571 select GENERIC_CLOCKEVENTS
Roland Stiggef5c42272012-04-22 12:01:19 +0200572 select USE_OF
Kevin Wells40805942010-07-27 08:49:04 -0700573 help
574 Support for the NXP LPC32XX family of processors
575
Russell King788c9702009-04-26 14:21:59 +0100576config ARCH_MV78XX0
577 bool "Marvell MV78xx0"
578 select CPU_FEROCEON
579 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700580 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100581 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600582 select NEED_MACH_IO_H
Russell King788c9702009-04-26 14:21:59 +0100583 select PLAT_ORION
584 help
585 Support for the following Marvell MV78xx0 series SoCs:
586 MV781x0, MV782x0.
587
588config ARCH_ORION5X
589 bool "Marvell Orion"
590 depends on MMU
591 select CPU_FEROCEON
592 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700593 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100594 select GENERIC_CLOCKEVENTS
Andrew Lunnb5e12222012-06-22 20:57:57 +0200595 select NEED_MACH_IO_H
Russell King788c9702009-04-26 14:21:59 +0100596 select PLAT_ORION
597 help
598 Support for the following Marvell Orion 5x series SoCs:
599 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
600 Orion-2 (5281), Orion-1-90 (6183).
601
602config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500603 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100604 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100605 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100606 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100607 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800608 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800609 select IRQ_DOMAIN
Russell King788c9702009-04-26 14:21:59 +0100610 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400611 select SPARSE_IRQ
Leo Yan3c7241b2011-08-15 11:09:52 +0800612 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100613 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500614 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100615
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100616config ARCH_KS8695
617 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000618 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100619 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000620 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400621 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100622 help
623 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
624 System-on-Chip devices.
625
Russell King788c9702009-04-26 14:21:59 +0100626config ARCH_W90X900
627 bool "Nuvoton W90X900 CPU"
628 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100629 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100630 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100631 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100632 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200633 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100634 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
635 At present, the w90x900 has been renamed nuc900, regarding
636 the ARM series product line, you can login the following
637 link address to know more.
638
639 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
640 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400641
Erik Gillingc5f80062010-01-21 16:53:02 -0800642config ARCH_TEGRA
643 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000644 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100645 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800646 select GENERIC_CLOCKEVENTS
647 select GENERIC_GPIO
648 select HAVE_CLK
Dave Martin3b556582011-12-07 15:38:04 +0000649 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000650 select MIGHT_HAVE_CACHE_L2X0
Rob Herringc334bc12012-03-04 22:03:33 -0600651 select NEED_MACH_IO_H if PCI
Colin Cross7056d422010-04-22 20:30:13 -0700652 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800653 help
654 This enables support for NVIDIA Tegra based systems (Tegra APX,
655 Tegra 6xx and Tegra 2 series).
656
Jamie Ilesaf756552011-07-25 17:36:42 +0100657config ARCH_PICOXCELL
658 bool "Picochip picoXcell"
659 select ARCH_REQUIRE_GPIOLIB
660 select ARM_PATCH_PHYS_VIRT
661 select ARM_VIC
662 select CPU_V6K
663 select DW_APB_TIMER
664 select GENERIC_CLOCKEVENTS
665 select GENERIC_GPIO
Jamie Ilesaf756552011-07-25 17:36:42 +0100666 select HAVE_TCM
667 select NO_IOPORT
Jamie Iles98e27a52011-12-12 20:17:37 +0000668 select SPARSE_IRQ
Jamie Ilesaf756552011-07-25 17:36:42 +0100669 select USE_OF
670 help
671 This enables support for systems based on the Picochip picoXcell
672 family of Femtocell devices. The picoxcell support requires device tree
673 for all boards.
674
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100675config ARCH_PNX4008
676 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000677 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100678 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000679 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100680 help
681 This enables support for Philips PNX4008 mobile platform.
682
Linus Torvalds1da177e2005-04-16 15:20:36 -0700683config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700684 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100685 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500686 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100687 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100688 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100689 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700690 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100691 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800692 select GPIO_PXA
Eric Miaobd5ce432009-01-20 12:06:01 +0800693 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800694 select SPARSE_IRQ
Eric Miao4e234cc2011-04-04 15:06:33 +0800695 select AUTO_ZRELADDR
Eric Miao8a97ae22011-05-18 21:30:04 +0800696 select MULTI_IRQ_HANDLER
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +0200697 select ARM_CPU_SUSPEND if PM
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200698 select HAVE_IDE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000699 help
eric miao2c8086a2007-09-11 19:13:17 -0700700 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700701
Russell King788c9702009-04-26 14:21:59 +0100702config ARCH_MSM
703 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500704 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800705 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700706 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800707 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800708 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800709 Support for Qualcomm MSM/QSD based systems. This runs on the
710 apps processor of the MSM/QSD and depends on a shared memory
711 interface to the modem processor which runs the baseband
712 stack and controls some vital subsystems
713 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800714
Magnus Dammc793c1b2010-02-05 11:14:49 +0000715config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900716 bool "Renesas SH-Mobile / R-Mobile"
717 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900718 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900719 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000720 select HAVE_SMP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900721 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000722 select MIGHT_HAVE_CACHE_L2X0
Paul Mundt6d72ad32010-11-16 16:10:20 +0900723 select NO_IOPORT
724 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000725 select MULTI_IRQ_HANDLER
Rafael J. Wysockie3e01092011-07-01 22:13:56 +0200726 select PM_GENERIC_DOMAINS if PM
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400727 select NEED_MACH_MEMORY_H
Magnus Dammc793c1b2010-02-05 11:14:49 +0000728 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900729 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000730
Linus Torvalds1da177e2005-04-16 15:20:36 -0700731config ARCH_RPC
732 bool "RiscPC"
733 select ARCH_ACORN
734 select FIQ
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100735 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100736 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000737 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000738 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100739 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000740 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200741 select HAVE_IDE
Rob Herringc334bc12012-03-04 22:03:33 -0600742 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400743 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700744 help
745 On the Acorn Risc-PC, Linux can support the internal IDE disk and
746 CD-ROM interface, serial and parallel port, and the floppy drive.
747
748config ARCH_SA1100
749 bool "SA1100-based"
Russell King234b6ced2011-05-08 14:09:47 +0100750 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000751 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100752 select ISA
Russell King05944d72006-11-30 20:43:51 +0000753 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500754 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100755 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000756 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100757 select GENERIC_CLOCKEVENTS
Jett.Zhou4a8f8342011-11-30 14:32:36 +0800758 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700759 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200760 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400761 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100762 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000763 help
764 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700765
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900766config ARCH_S3C24XX
767 bool "Samsung S3C24XX SoCs"
David Brownell0a938b92007-03-05 00:30:18 -0800768 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100769 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700770 select HAVE_CLK
Thomas Abrahame83626f2011-06-14 19:12:26 +0900771 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000772 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900773 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900774 select HAVE_S3C_RTC if RTC_CLASS
775 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Rob Herringc334bc12012-03-04 22:03:33 -0600776 select NEED_MACH_IO_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700777 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900778 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
779 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
780 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
781 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900782
Ben Dooksa08ab632008-10-21 14:06:39 +0100783config ARCH_S3C64XX
784 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000785 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900786 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900787 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100788 select HAVE_CLK
Mark Brown67003972011-10-11 08:57:11 +0900789 select HAVE_TCM
Thomas Abraham226e85f2011-06-14 19:12:26 +0900790 select CLKDEV_LOOKUP
Ben Dooks89f0ce72010-01-26 15:49:15 +0900791 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000792 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100793 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900794 select ARCH_REQUIRE_GPIOLIB
795 select SAMSUNG_CLKSRC
796 select SAMSUNG_IRQ_VIC_TIMER
Ben Dooks89f0ce72010-01-26 15:49:15 +0900797 select S3C_GPIO_TRACK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900798 select S3C_DEV_NAND
799 select USB_ARCH_HAS_OHCI
800 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900801 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900802 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100803 help
804 Samsung S3C64XX series based systems
805
Kukjin Kim49b7a492010-09-07 15:47:18 +0900806config ARCH_S5P64X0
807 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900808 select CPU_V6
809 select GENERIC_GPIO
810 select HAVE_CLK
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900811 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900812 select CLKSRC_MMIO
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900813 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900814 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900815 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900816 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900817 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900818 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
819 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900820
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200821config ARCH_S5PC100
822 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900823 select GENERIC_GPIO
824 select HAVE_CLK
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900825 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900826 select CPU_V7
Ben Dooks925c68c2010-05-20 20:48:28 +0900827 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900828 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900829 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900830 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900831 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200832 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900833
Kukjin Kim170f4e42010-02-24 16:40:44 +0900834config ARCH_S5PV210
835 bool "Samsung S5PV210/S5PC110"
836 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900837 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900838 select ARCH_HAS_HOLES_MEMORYMODEL
Kukjin Kim170f4e42010-02-24 16:40:44 +0900839 select GENERIC_GPIO
840 select HAVE_CLK
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900841 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900842 select CLKSRC_MMIO
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900843 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900844 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900845 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900846 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900847 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400848 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900849 help
850 Samsung S5PV210/S5PC110 series based systems
851
Kukjin Kim83014572011-11-06 13:54:56 +0900852config ARCH_EXYNOS
853 bool "SAMSUNG EXYNOS"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900854 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900855 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900856 select ARCH_HAS_HOLES_MEMORYMODEL
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900857 select GENERIC_GPIO
858 select HAVE_CLK
Thomas Abrahambadc4f22011-06-14 19:12:27 +0900859 select CLKDEV_LOOKUP
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900860 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900861 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900862 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900863 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900864 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400865 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900866 help
Kukjin Kim83014572011-11-06 13:54:56 +0900867 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900868
Linus Torvalds1da177e2005-04-16 15:20:36 -0700869config ARCH_SHARK
870 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000871 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100872 select ISA
873 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100874 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100875 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000876 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400877 select NEED_MACH_MEMORY_H
Rob Herringc334bc12012-03-04 22:03:33 -0600878 select NEED_MACH_IO_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000879 help
880 Support for the StrongARM based Digital DNARD machine, also known
881 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700882
Linus Walleijd98aac72009-04-27 10:21:46 +0100883config ARCH_U300
884 bool "ST-Ericsson U300 Series"
885 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100886 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100887 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100888 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100889 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200890 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100891 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100892 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100893 select CLKDEV_LOOKUP
Linus Walleij50667d62012-06-19 23:44:25 +0200894 select COMMON_CLK
Linus Walleijd98aac72009-04-27 10:21:46 +0100895 select GENERIC_GPIO
Linus Walleijcc890cd2011-09-08 09:04:51 +0100896 select ARCH_REQUIRE_GPIOLIB
Linus Walleijd98aac72009-04-27 10:21:46 +0100897 help
898 Support for ST-Ericsson U300 series mobile platforms.
899
Russell Kingccf50e22010-03-15 19:03:06 +0000900config ARCH_U8500
901 bool "ST-Ericsson U8500 Series"
Arnd Bergmann67ae14f2012-02-25 12:48:49 -0700902 depends on MMU
Russell Kingccf50e22010-03-15 19:03:06 +0000903 select CPU_V7
904 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000905 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100906 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100907 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100908 select ARCH_HAS_CPUFREQ
Dave Martin3b556582011-12-07 15:38:04 +0000909 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000910 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000911 help
912 Support for ST-Ericsson's Ux500 architecture
913
914config ARCH_NOMADIK
915 bool "STMicroelectronics Nomadik"
916 select ARM_AMBA
917 select ARM_VIC
918 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100919 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000920 select GENERIC_CLOCKEVENTS
Arnd Bergmann0fa7be42012-05-15 11:24:34 +0000921 select PINCTRL
Dave Martince5ea9f2011-11-29 15:56:19 +0000922 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000923 select ARCH_REQUIRE_GPIOLIB
924 help
925 Support for the Nomadik platform by ST-Ericsson
926
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100927config ARCH_DAVINCI
928 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100929 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700930 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100931 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700932 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100933 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700934 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100935 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530936 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100937 help
938 Support for TI's DaVinci platform.
939
Russell King3b938be2007-05-12 11:25:44 +0100940config ARCH_OMAP
941 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700942 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700943 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100944 select ARCH_HAS_CPUFREQ
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700945 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700946 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800947 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100948 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200949 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100950
viresh kumarcee37e52010-04-01 12:31:05 +0100951config PLAT_SPEAR
952 bool "ST SPEAr"
953 select ARM_AMBA
954 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100955 select CLKDEV_LOOKUP
Viresh Kumar5df33a62012-04-10 09:02:35 +0530956 select COMMON_CLK
Russell Kingd6e15d72011-05-08 17:10:14 +0100957 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100958 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100959 select HAVE_CLK
960 help
961 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
962
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100963config ARCH_VT8500
964 bool "VIA/WonderMedia 85xx"
965 select CPU_ARM926T
966 select GENERIC_GPIO
967 select ARCH_HAS_CPUFREQ
968 select GENERIC_CLOCKEVENTS
969 select ARCH_REQUIRE_GPIOLIB
970 select HAVE_PWM
971 help
972 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +0800973
John Linnb85a3ef2011-06-20 11:47:27 -0600974config ARCH_ZYNQ
975 bool "Xilinx Zynq ARM Cortex A9 Platform"
Binghua Duan02c981c2011-07-08 17:40:12 +0800976 select CPU_V7
Binghua Duan02c981c2011-07-08 17:40:12 +0800977 select GENERIC_CLOCKEVENTS
978 select CLKDEV_LOOKUP
John Linnb85a3ef2011-06-20 11:47:27 -0600979 select ARM_GIC
980 select ARM_AMBA
981 select ICST
Dave Martince5ea9f2011-11-29 15:56:19 +0000982 select MIGHT_HAVE_CACHE_L2X0
Binghua Duan02c981c2011-07-08 17:40:12 +0800983 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +0800984 help
John Linnb85a3ef2011-06-20 11:47:27 -0600985 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -0700986endchoice
987
Russell Kingccf50e22010-03-15 19:03:06 +0000988#
989# This is sorted alphabetically by mach-* pathname. However, plat-*
990# Kconfigs may be included either alphabetically (according to the
991# plat- suffix) or along side the corresponding mach-* source.
992#
Russell King95b8f202010-01-14 11:43:54 +0000993source "arch/arm/mach-at91/Kconfig"
994
995source "arch/arm/mach-bcmring/Kconfig"
996
Linus Torvalds1da177e2005-04-16 15:20:36 -0700997source "arch/arm/mach-clps711x/Kconfig"
998
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300999source "arch/arm/mach-cns3xxx/Kconfig"
1000
Russell King95b8f202010-01-14 11:43:54 +00001001source "arch/arm/mach-davinci/Kconfig"
1002
1003source "arch/arm/mach-dove/Kconfig"
1004
Lennert Buytenheke7736d42006-03-20 17:10:13 +00001005source "arch/arm/mach-ep93xx/Kconfig"
1006
Linus Torvalds1da177e2005-04-16 15:20:36 -07001007source "arch/arm/mach-footbridge/Kconfig"
1008
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001009source "arch/arm/mach-gemini/Kconfig"
1010
Russell King95b8f202010-01-14 11:43:54 +00001011source "arch/arm/mach-h720x/Kconfig"
1012
Linus Torvalds1da177e2005-04-16 15:20:36 -07001013source "arch/arm/mach-integrator/Kconfig"
1014
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001015source "arch/arm/mach-iop32x/Kconfig"
1016
1017source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001018
Dan Williams285f5fa2006-12-07 02:59:39 +01001019source "arch/arm/mach-iop13xx/Kconfig"
1020
Linus Torvalds1da177e2005-04-16 15:20:36 -07001021source "arch/arm/mach-ixp4xx/Kconfig"
1022
Russell King95b8f202010-01-14 11:43:54 +00001023source "arch/arm/mach-kirkwood/Kconfig"
1024
1025source "arch/arm/mach-ks8695/Kconfig"
1026
Kevin Wells40805942010-07-27 08:49:04 -07001027source "arch/arm/mach-lpc32xx/Kconfig"
1028
Russell King95b8f202010-01-14 11:43:54 +00001029source "arch/arm/mach-msm/Kconfig"
1030
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001031source "arch/arm/mach-mv78xx0/Kconfig"
1032
Russell King95b8f202010-01-14 11:43:54 +00001033source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001034
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001035source "arch/arm/mach-mxs/Kconfig"
1036
Russell King95b8f202010-01-14 11:43:54 +00001037source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001038
Russell King95b8f202010-01-14 11:43:54 +00001039source "arch/arm/mach-nomadik/Kconfig"
1040source "arch/arm/plat-nomadik/Kconfig"
1041
Tony Lindgrend48af152005-07-10 19:58:17 +01001042source "arch/arm/plat-omap/Kconfig"
1043
1044source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001045
Tony Lindgren1dbae812005-11-10 14:26:51 +00001046source "arch/arm/mach-omap2/Kconfig"
1047
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001048source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001049
Russell King95b8f202010-01-14 11:43:54 +00001050source "arch/arm/mach-pxa/Kconfig"
1051source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001052
Russell King95b8f202010-01-14 11:43:54 +00001053source "arch/arm/mach-mmp/Kconfig"
1054
1055source "arch/arm/mach-realview/Kconfig"
1056
1057source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001058
Ben Dookscf383672009-11-10 00:14:58 +00001059source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001060source "arch/arm/plat-s3c24xx/Kconfig"
1061
viresh kumarcee37e52010-04-01 12:31:05 +01001062source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001063
Kukjin Kim85fd6d62012-02-06 09:38:19 +09001064source "arch/arm/mach-s3c24xx/Kconfig"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001065if ARCH_S3C24XX
Ben Dooksa21765a2007-02-11 18:31:01 +01001066source "arch/arm/mach-s3c2412/Kconfig"
1067source "arch/arm/mach-s3c2440/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001068endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001069
Ben Dooksa08ab632008-10-21 14:06:39 +01001070if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001071source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001072endif
1073
Kukjin Kim49b7a492010-09-07 15:47:18 +09001074source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001075
Byungho Min5a7652f2009-06-23 21:39:42 +09001076source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001077
Kukjin Kim170f4e42010-02-24 16:40:44 +09001078source "arch/arm/mach-s5pv210/Kconfig"
1079
Kukjin Kim83014572011-11-06 13:54:56 +09001080source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001081
Russell King882d01f2010-03-02 23:40:15 +00001082source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001083
Erik Gillingc5f80062010-01-21 16:53:02 -08001084source "arch/arm/mach-tegra/Kconfig"
1085
Russell King95b8f202010-01-14 11:43:54 +00001086source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001087
Russell King95b8f202010-01-14 11:43:54 +00001088source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001089
1090source "arch/arm/mach-versatile/Kconfig"
1091
Russell Kingceade892010-02-11 21:44:53 +00001092source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001093source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001094
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001095source "arch/arm/mach-vt8500/Kconfig"
1096
wanzongshun7ec80dd2008-12-03 03:55:38 +01001097source "arch/arm/mach-w90x900/Kconfig"
1098
Linus Torvalds1da177e2005-04-16 15:20:36 -07001099# Definitions to make life easier
1100config ARCH_ACORN
1101 bool
1102
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001103config PLAT_IOP
1104 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001105 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001106
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001107config PLAT_ORION
1108 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001109 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001110 select GENERIC_IRQ_CHIP
Andrew Lunn2f129bf2011-12-15 08:15:07 +01001111 select COMMON_CLK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001112
Eric Miaobd5ce432009-01-20 12:06:01 +08001113config PLAT_PXA
1114 bool
1115
Russell Kingf4b8b312010-01-14 12:48:06 +00001116config PLAT_VERSATILE
1117 bool
1118
Russell Kinge3887712010-01-14 13:30:16 +00001119config ARM_TIMER_SP804
1120 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001121 select CLKSRC_MMIO
Rob Herringa7bf6162011-12-12 15:29:08 -06001122 select HAVE_SCHED_CLOCK
Russell Kinge3887712010-01-14 13:30:16 +00001123
Linus Torvalds1da177e2005-04-16 15:20:36 -07001124source arch/arm/mm/Kconfig
1125
Russell King958cab02011-12-11 10:04:00 +00001126config ARM_NR_BANKS
1127 int
1128 default 16 if ARCH_EP93XX
1129 default 8
1130
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001131config IWMMXT
1132 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001133 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1134 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001135 help
1136 Enable support for iWMMXt context switching at run time if
1137 running on a CPU that supports it.
1138
Linus Torvalds1da177e2005-04-16 15:20:36 -07001139config XSCALE_PMU
1140 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001141 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001142 default y
1143
Jamie Iles0f4f0672010-02-02 20:23:15 +01001144config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001145 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001146 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001147 default y
1148 bool
1149
eric miao52108642010-12-13 09:42:34 +01001150config MULTI_IRQ_HANDLER
1151 bool
1152 help
1153 Allow each machine to specify it's own IRQ handler at run time.
1154
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001155if !MMU
1156source "arch/arm/Kconfig-nommu"
1157endif
1158
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001159config ARM_ERRATA_326103
1160 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1161 depends on CPU_V6
1162 help
1163 Executing a SWP instruction to read-only memory does not set bit 11
1164 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1165 treat the access as a read, preventing a COW from occurring and
1166 causing the faulting task to livelock.
1167
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001168config ARM_ERRATA_411920
1169 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001170 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001171 help
1172 Invalidation of the Instruction Cache operation can
1173 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1174 It does not affect the MPCore. This option enables the ARM Ltd.
1175 recommended workaround.
1176
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001177config ARM_ERRATA_430973
1178 bool "ARM errata: Stale prediction on replaced interworking branch"
1179 depends on CPU_V7
1180 help
1181 This option enables the workaround for the 430973 Cortex-A8
1182 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1183 interworking branch is replaced with another code sequence at the
1184 same virtual address, whether due to self-modifying code or virtual
1185 to physical address re-mapping, Cortex-A8 does not recover from the
1186 stale interworking branch prediction. This results in Cortex-A8
1187 executing the new code sequence in the incorrect ARM or Thumb state.
1188 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1189 and also flushes the branch target cache at every context switch.
1190 Note that setting specific bits in the ACTLR register may not be
1191 available in non-secure mode.
1192
Catalin Marinas855c5512009-04-30 17:06:15 +01001193config ARM_ERRATA_458693
1194 bool "ARM errata: Processor deadlock when a false hazard is created"
1195 depends on CPU_V7
1196 help
1197 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1198 erratum. For very specific sequences of memory operations, it is
1199 possible for a hazard condition intended for a cache line to instead
1200 be incorrectly associated with a different cache line. This false
1201 hazard might then cause a processor deadlock. The workaround enables
1202 the L1 caching of the NEON accesses and disables the PLD instruction
1203 in the ACTLR register. Note that setting specific bits in the ACTLR
1204 register may not be available in non-secure mode.
1205
Catalin Marinas0516e462009-04-30 17:06:20 +01001206config ARM_ERRATA_460075
1207 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1208 depends on CPU_V7
1209 help
1210 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1211 erratum. Any asynchronous access to the L2 cache may encounter a
1212 situation in which recent store transactions to the L2 cache are lost
1213 and overwritten with stale memory contents from external memory. The
1214 workaround disables the write-allocate mode for the L2 cache via the
1215 ACTLR register. Note that setting specific bits in the ACTLR register
1216 may not be available in non-secure mode.
1217
Will Deacon9f050272010-09-14 09:51:43 +01001218config ARM_ERRATA_742230
1219 bool "ARM errata: DMB operation may be faulty"
1220 depends on CPU_V7 && SMP
1221 help
1222 This option enables the workaround for the 742230 Cortex-A9
1223 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1224 between two write operations may not ensure the correct visibility
1225 ordering of the two writes. This workaround sets a specific bit in
1226 the diagnostic register of the Cortex-A9 which causes the DMB
1227 instruction to behave as a DSB, ensuring the correct behaviour of
1228 the two writes.
1229
Will Deacona672e992010-09-14 09:53:02 +01001230config ARM_ERRATA_742231
1231 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1232 depends on CPU_V7 && SMP
1233 help
1234 This option enables the workaround for the 742231 Cortex-A9
1235 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1236 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1237 accessing some data located in the same cache line, may get corrupted
1238 data due to bad handling of the address hazard when the line gets
1239 replaced from one of the CPUs at the same time as another CPU is
1240 accessing it. This workaround sets specific bits in the diagnostic
1241 register of the Cortex-A9 which reduces the linefill issuing
1242 capabilities of the processor.
1243
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001244config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001245 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001246 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001247 help
1248 The PL310 L2 cache controller implements three types of Clean &
1249 Invalidate maintenance operations: by Physical Address
1250 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1251 They are architecturally defined to behave as the execution of a
1252 clean operation followed immediately by an invalidate operation,
1253 both performing to the same memory location. This functionality
1254 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001255 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001256
1257config ARM_ERRATA_720789
1258 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001259 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001260 help
1261 This option enables the workaround for the 720789 Cortex-A9 (prior to
1262 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1263 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1264 As a consequence of this erratum, some TLB entries which should be
1265 invalidated are not, resulting in an incoherency in the system page
1266 tables. The workaround changes the TLB flushing routines to invalidate
1267 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001268
Russell King1f0090a2011-03-16 23:35:25 +00001269config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001270 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001271 depends on CACHE_L2X0
1272 help
1273 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1274 operation (offset 0x7FC). This operation runs in background so that
1275 PL310 can handle normal accesses while it is in progress. Under very
1276 rare circumstances, due to this erratum, write data can be lost when
1277 PL310 treats a cacheable write transaction during a Clean &
1278 Invalidate by Way operation.
1279
Will Deacon475d92f2010-09-28 14:02:02 +01001280config ARM_ERRATA_743622
1281 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1282 depends on CPU_V7
1283 help
1284 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001285 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001286 optimisation in the Cortex-A9 Store Buffer may lead to data
1287 corruption. This workaround sets a specific bit in the diagnostic
1288 register of the Cortex-A9 which disables the Store Buffer
1289 optimisation, preventing the defect from occurring. This has no
1290 visible impact on the overall performance or power consumption of the
1291 processor.
1292
Will Deacon9a27c272011-02-18 16:36:35 +01001293config ARM_ERRATA_751472
1294 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001295 depends on CPU_V7
Will Deacon9a27c272011-02-18 16:36:35 +01001296 help
1297 This option enables the workaround for the 751472 Cortex-A9 (prior
1298 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1299 completion of a following broadcasted operation if the second
1300 operation is received by a CPU before the ICIALLUIS has completed,
1301 potentially leading to corrupted entries in the cache or TLB.
1302
Will Deaconfa0ce402011-11-14 17:24:57 +01001303config PL310_ERRATA_753970
1304 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001305 depends on CACHE_PL310
1306 help
1307 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1308
1309 Under some condition the effect of cache sync operation on
1310 the store buffer still remains when the operation completes.
1311 This means that the store buffer is always asked to drain and
1312 this prevents it from merging any further writes. The workaround
1313 is to replace the normal offset of cache sync operation (0x730)
1314 by another offset targeting an unmapped PL310 register 0x740.
1315 This has the same effect as the cache sync operation: store buffer
1316 drain and waiting for all buffers empty.
1317
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001318config ARM_ERRATA_754322
1319 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1320 depends on CPU_V7
1321 help
1322 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1323 r3p*) erratum. A speculative memory access may cause a page table walk
1324 which starts prior to an ASID switch but completes afterwards. This
1325 can populate the micro-TLB with a stale entry which may be hit with
1326 the new ASID. This workaround places two dsb instructions in the mm
1327 switching code so that no page table walks can cross the ASID switch.
1328
Will Deacon5dab26a2011-03-04 12:38:54 +01001329config ARM_ERRATA_754327
1330 bool "ARM errata: no automatic Store Buffer drain"
1331 depends on CPU_V7 && SMP
1332 help
1333 This option enables the workaround for the 754327 Cortex-A9 (prior to
1334 r2p0) erratum. The Store Buffer does not have any automatic draining
1335 mechanism and therefore a livelock may occur if an external agent
1336 continuously polls a memory location waiting to observe an update.
1337 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1338 written polling loops from denying visibility of updates to memory.
1339
Catalin Marinas145e10e2011-08-15 11:04:41 +01001340config ARM_ERRATA_364296
1341 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1342 depends on CPU_V6 && !SMP
1343 help
1344 This options enables the workaround for the 364296 ARM1136
1345 r0p2 erratum (possible cache data corruption with
1346 hit-under-miss enabled). It sets the undocumented bit 31 in
1347 the auxiliary control register and the FI bit in the control
1348 register, thus disabling hit-under-miss without putting the
1349 processor into full low interrupt latency mode. ARM11MPCore
1350 is not affected.
1351
Will Deaconf630c1b2011-09-15 11:45:15 +01001352config ARM_ERRATA_764369
1353 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1354 depends on CPU_V7 && SMP
1355 help
1356 This option enables the workaround for erratum 764369
1357 affecting Cortex-A9 MPCore with two or more processors (all
1358 current revisions). Under certain timing circumstances, a data
1359 cache line maintenance operation by MVA targeting an Inner
1360 Shareable memory region may fail to proceed up to either the
1361 Point of Coherency or to the Point of Unification of the
1362 system. This workaround adds a DSB instruction before the
1363 relevant cache maintenance functions and sets a specific bit
1364 in the diagnostic control register of the SCU.
1365
Will Deacon11ed0ba2011-11-14 17:24:58 +01001366config PL310_ERRATA_769419
1367 bool "PL310 errata: no automatic Store Buffer drain"
1368 depends on CACHE_L2X0
1369 help
1370 On revisions of the PL310 prior to r3p2, the Store Buffer does
1371 not automatically drain. This can cause normal, non-cacheable
1372 writes to be retained when the memory system is idle, leading
1373 to suboptimal I/O performance for drivers using coherent DMA.
1374 This option adds a write barrier to the cpu_idle loop so that,
1375 on systems with an outer cache, the store buffer is drained
1376 explicitly.
1377
Linus Torvalds1da177e2005-04-16 15:20:36 -07001378endmenu
1379
1380source "arch/arm/common/Kconfig"
1381
Linus Torvalds1da177e2005-04-16 15:20:36 -07001382menu "Bus support"
1383
1384config ARM_AMBA
1385 bool
1386
1387config ISA
1388 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001389 help
1390 Find out whether you have ISA slots on your motherboard. ISA is the
1391 name of a bus system, i.e. the way the CPU talks to the other stuff
1392 inside your box. Other bus systems are PCI, EISA, MicroChannel
1393 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1394 newer boards don't support it. If you have ISA, say Y, otherwise N.
1395
Russell King065909b2006-01-04 15:44:16 +00001396# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001397config ISA_DMA
1398 bool
Russell King065909b2006-01-04 15:44:16 +00001399 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001400
Russell King065909b2006-01-04 15:44:16 +00001401# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001402config ISA_DMA_API
1403 bool
Al Viro5cae8412005-05-04 05:39:22 +01001404
Linus Torvalds1da177e2005-04-16 15:20:36 -07001405config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001406 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001407 help
1408 Find out whether you have a PCI motherboard. PCI is the name of a
1409 bus system, i.e. the way the CPU talks to the other stuff inside
1410 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1411 VESA. If you have PCI, say Y, otherwise N.
1412
Anton Vorontsov52882172010-04-19 13:20:49 +01001413config PCI_DOMAINS
1414 bool
1415 depends on PCI
1416
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001417config PCI_NANOENGINE
1418 bool "BSE nanoEngine PCI support"
1419 depends on SA1100_NANOENGINE
1420 help
1421 Enable PCI on the BSE nanoEngine board.
1422
Matthew Wilcox36e23592007-07-10 10:54:40 -06001423config PCI_SYSCALL
1424 def_bool PCI
1425
Linus Torvalds1da177e2005-04-16 15:20:36 -07001426# Select the host bridge type
1427config PCI_HOST_VIA82C505
1428 bool
1429 depends on PCI && ARCH_SHARK
1430 default y
1431
Mike Rapoporta0113a92007-11-25 08:55:34 +01001432config PCI_HOST_ITE8152
1433 bool
1434 depends on PCI && MACH_ARMCORE
1435 default y
1436 select DMABOUNCE
1437
Linus Torvalds1da177e2005-04-16 15:20:36 -07001438source "drivers/pci/Kconfig"
1439
1440source "drivers/pcmcia/Kconfig"
1441
1442endmenu
1443
1444menu "Kernel Features"
1445
Dave Martin3b556582011-12-07 15:38:04 +00001446config HAVE_SMP
1447 bool
1448 help
1449 This option should be selected by machines which have an SMP-
1450 capable CPU.
1451
1452 The only effect of this option is to make the SMP-related
1453 options available to the user for configuration.
1454
Linus Torvalds1da177e2005-04-16 15:20:36 -07001455config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001456 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001457 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001458 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001459 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001460 depends on MMU
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001461 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001462 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001463 help
1464 This enables support for systems with more than one CPU. If you have
1465 a system with only one CPU, like most personal computers, say N. If
1466 you have a system with more than one CPU, say Y.
1467
1468 If you say N here, the kernel will run on single and multiprocessor
1469 machines, but will use only one CPU of a multiprocessor machine. If
1470 you say Y here, the kernel will run on many, but not all, single
1471 processor machines. On a single processor machine, the kernel will
1472 run faster if you say N here.
1473
Paul Bolle395cf962011-08-15 02:02:26 +02001474 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001475 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001476 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001477
1478 If you don't know what to do here, say N.
1479
Russell Kingf00ec482010-09-04 10:47:48 +01001480config SMP_ON_UP
1481 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1482 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001483 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001484 default y
1485 help
1486 SMP kernels contain instructions which fail on non-SMP processors.
1487 Enabling this option allows the kernel to modify itself to make
1488 these instructions safe. Disabling it allows about 1K of space
1489 savings.
1490
1491 If you don't know what to do here, say Y.
1492
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001493config ARM_CPU_TOPOLOGY
1494 bool "Support cpu topology definition"
1495 depends on SMP && CPU_V7
1496 default y
1497 help
1498 Support ARM cpu topology definition. The MPIDR register defines
1499 affinity between processors which is then used to describe the cpu
1500 topology of an ARM System.
1501
1502config SCHED_MC
1503 bool "Multi-core scheduler support"
1504 depends on ARM_CPU_TOPOLOGY
1505 help
1506 Multi-core scheduler support improves the CPU scheduler's decision
1507 making when dealing with multi-core CPU chips at a cost of slightly
1508 increased overhead in some places. If unsure say N here.
1509
1510config SCHED_SMT
1511 bool "SMT scheduler support"
1512 depends on ARM_CPU_TOPOLOGY
1513 help
1514 Improves the CPU scheduler's decision making when dealing with
1515 MultiThreading at a cost of slightly increased overhead in some
1516 places. If unsure say N here.
1517
Russell Kinga8cbcd92009-05-16 11:51:14 +01001518config HAVE_ARM_SCU
1519 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001520 help
1521 This option enables support for the ARM system coherency unit
1522
Marc Zyngier022c03a2012-01-11 17:25:17 +00001523config ARM_ARCH_TIMER
1524 bool "Architected timer support"
1525 depends on CPU_V7
1526 help
1527 This option enables support for the ARM architected timer
1528
Russell Kingf32f4ce2009-05-16 12:14:21 +01001529config HAVE_ARM_TWD
1530 bool
1531 depends on SMP
1532 help
1533 This options enables support for the ARM timer and watchdog unit
1534
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001535choice
1536 prompt "Memory split"
1537 default VMSPLIT_3G
1538 help
1539 Select the desired split between kernel and user memory.
1540
1541 If you are not absolutely sure what you are doing, leave this
1542 option alone!
1543
1544 config VMSPLIT_3G
1545 bool "3G/1G user/kernel split"
1546 config VMSPLIT_2G
1547 bool "2G/2G user/kernel split"
1548 config VMSPLIT_1G
1549 bool "1G/3G user/kernel split"
1550endchoice
1551
1552config PAGE_OFFSET
1553 hex
1554 default 0x40000000 if VMSPLIT_1G
1555 default 0x80000000 if VMSPLIT_2G
1556 default 0xC0000000
1557
Linus Torvalds1da177e2005-04-16 15:20:36 -07001558config NR_CPUS
1559 int "Maximum number of CPUs (2-32)"
1560 range 2 32
1561 depends on SMP
1562 default "4"
1563
Russell Kinga054a812005-11-02 22:24:33 +00001564config HOTPLUG_CPU
1565 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1566 depends on SMP && HOTPLUG && EXPERIMENTAL
1567 help
1568 Say Y here to experiment with turning CPUs off and on. CPUs
1569 can be controlled through /sys/devices/system/cpu.
1570
Russell King37ee16a2005-11-08 19:08:05 +00001571config LOCAL_TIMERS
1572 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001573 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001574 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001575 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001576 help
1577 Enable support for local timers on SMP platforms, rather then the
1578 legacy IPI broadcast method. Local timers allows the system
1579 accounting to be spread across the timer interval, preventing a
1580 "thundering herd" at every timer tick.
1581
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001582config ARCH_NR_GPIO
1583 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001584 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Philippe Langlais70227a42012-02-13 10:51:22 +01001585 default 355 if ARCH_U8500
Paul Parsons9a01ec32012-02-27 01:58:45 +00001586 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001587 default 0
1588 help
1589 Maximum number of GPIOs in the system.
1590
1591 If unsure, leave the default value.
1592
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001593source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001594
Russell Kingf8065812006-03-02 22:41:59 +00001595config HZ
1596 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001597 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001598 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001599 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001600 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001601 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001602 default 100
1603
Catalin Marinas16c79652009-07-24 12:33:02 +01001604config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001605 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001606 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001607 select AEABI
1608 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001609 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001610 help
1611 By enabling this option, the kernel will be compiled in
1612 Thumb-2 mode. A compiler/assembler that understand the unified
1613 ARM-Thumb syntax is needed.
1614
1615 If unsure, say N.
1616
Dave Martin6f685c52011-03-03 11:41:12 +01001617config THUMB2_AVOID_R_ARM_THM_JUMP11
1618 bool "Work around buggy Thumb-2 short branch relocations in gas"
1619 depends on THUMB2_KERNEL && MODULES
1620 default y
1621 help
1622 Various binutils versions can resolve Thumb-2 branches to
1623 locally-defined, preemptible global symbols as short-range "b.n"
1624 branch instructions.
1625
1626 This is a problem, because there's no guarantee the final
1627 destination of the symbol, or any candidate locations for a
1628 trampoline, are within range of the branch. For this reason, the
1629 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1630 relocation in modules at all, and it makes little sense to add
1631 support.
1632
1633 The symptom is that the kernel fails with an "unsupported
1634 relocation" error when loading some modules.
1635
1636 Until fixed tools are available, passing
1637 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1638 code which hits this problem, at the cost of a bit of extra runtime
1639 stack usage in some cases.
1640
1641 The problem is described in more detail at:
1642 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1643
1644 Only Thumb-2 kernels are affected.
1645
1646 Unless you are sure your tools don't have this problem, say Y.
1647
Catalin Marinas0becb082009-07-24 12:32:53 +01001648config ARM_ASM_UNIFIED
1649 bool
1650
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001651config AEABI
1652 bool "Use the ARM EABI to compile the kernel"
1653 help
1654 This option allows for the kernel to be compiled using the latest
1655 ARM ABI (aka EABI). This is only useful if you are using a user
1656 space environment that is also compiled with EABI.
1657
1658 Since there are major incompatibilities between the legacy ABI and
1659 EABI, especially with regard to structure member alignment, this
1660 option also changes the kernel syscall calling convention to
1661 disambiguate both ABIs and allow for backward compatibility support
1662 (selected with CONFIG_OABI_COMPAT).
1663
1664 To use this you need GCC version 4.0.0 or later.
1665
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001666config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001667 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001668 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001669 default y
1670 help
1671 This option preserves the old syscall interface along with the
1672 new (ARM EABI) one. It also provides a compatibility layer to
1673 intercept syscalls that have structure arguments which layout
1674 in memory differs between the legacy ABI and the new ARM EABI
1675 (only for non "thumb" binaries). This option adds a tiny
1676 overhead to all syscalls and produces a slightly larger kernel.
1677 If you know you'll be using only pure EABI user space then you
1678 can say N here. If this option is not selected and you attempt
1679 to execute a legacy ABI binary then the result will be
1680 UNPREDICTABLE (in fact it can be predicted that it won't work
1681 at all). If in doubt say Y.
1682
Mel Gormaneb335752009-05-13 17:34:48 +01001683config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001684 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001685
Russell King05944d72006-11-30 20:43:51 +00001686config ARCH_SPARSEMEM_ENABLE
1687 bool
1688
Russell King07a2f732008-10-01 21:39:58 +01001689config ARCH_SPARSEMEM_DEFAULT
1690 def_bool ARCH_SPARSEMEM_ENABLE
1691
Russell King05944d72006-11-30 20:43:51 +00001692config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001693 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001694
Will Deacon7b7bf492011-05-19 13:21:14 +01001695config HAVE_ARCH_PFN_VALID
1696 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1697
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001698config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001699 bool "High Memory Support"
1700 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001701 help
1702 The address space of ARM processors is only 4 Gigabytes large
1703 and it has to accommodate user address space, kernel address
1704 space as well as some memory mapped IO. That means that, if you
1705 have a large amount of physical memory and/or IO, not all of the
1706 memory can be "permanently mapped" by the kernel. The physical
1707 memory that is not permanently mapped is called "high memory".
1708
1709 Depending on the selected kernel/user memory split, minimum
1710 vmalloc space and actual amount of RAM, you may not need this
1711 option which should result in a slightly faster kernel.
1712
1713 If unsure, say n.
1714
Russell King65cec8e2009-08-17 20:02:06 +01001715config HIGHPTE
1716 bool "Allocate 2nd-level pagetables from highmem"
1717 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001718
Jamie Iles1b8873a2010-02-02 20:25:44 +01001719config HW_PERF_EVENTS
1720 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001721 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001722 default y
1723 help
1724 Enable hardware performance counter support for perf events. If
1725 disabled, perf events will use software events only.
1726
Dave Hansen3f22ab22005-06-23 00:07:43 -07001727source "mm/Kconfig"
1728
Magnus Dammc1b2d972010-07-05 10:00:11 +01001729config FORCE_MAX_ZONEORDER
1730 int "Maximum zone order" if ARCH_SHMOBILE
1731 range 11 64 if ARCH_SHMOBILE
1732 default "9" if SA1111
1733 default "11"
1734 help
1735 The kernel memory allocator divides physically contiguous memory
1736 blocks into "zones", where each zone is a power of two number of
1737 pages. This option selects the largest power of two that the kernel
1738 keeps in the memory allocator. If you need to allocate very large
1739 blocks of physically contiguous memory, then you may need to
1740 increase this value.
1741
1742 This config option is actually maximum order plus one. For example,
1743 a value of 11 means that the largest free memory block is 2^10 pages.
1744
Linus Torvalds1da177e2005-04-16 15:20:36 -07001745config LEDS
1746 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001747 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001748 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001749 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1750 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001751 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001752 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001753 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001754 help
1755 If you say Y here, the LEDs on your machine will be used
1756 to provide useful information about your current system status.
1757
1758 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1759 be able to select which LEDs are active using the options below. If
1760 you are compiling a kernel for the EBSA-110 or the LART however, the
1761 red LED will simply flash regularly to indicate that the system is
1762 still functional. It is safe to say Y here if you have a CATS
1763 system, but the driver will do nothing.
1764
1765config LEDS_TIMER
1766 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001767 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1768 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001769 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001770 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001771 default y if ARCH_EBSA110
1772 help
1773 If you say Y here, one of the system LEDs (the green one on the
1774 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1775 will flash regularly to indicate that the system is still
1776 operational. This is mainly useful to kernel hackers who are
1777 debugging unstable kernels.
1778
1779 The LART uses the same LED for both Timer LED and CPU usage LED
1780 functions. You may choose to use both, but the Timer LED function
1781 will overrule the CPU usage LED.
1782
1783config LEDS_CPU
1784 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001785 !ARCH_OMAP) \
1786 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1787 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001788 depends on LEDS
1789 help
1790 If you say Y here, the red LED will be used to give a good real
1791 time indication of CPU usage, by lighting whenever the idle task
1792 is not currently executing.
1793
1794 The LART uses the same LED for both Timer LED and CPU usage LED
1795 functions. You may choose to use both, but the Timer LED function
1796 will overrule the CPU usage LED.
1797
1798config ALIGNMENT_TRAP
1799 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001800 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001801 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001802 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001803 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001804 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001805 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1806 address divisible by 4. On 32-bit ARM processors, these non-aligned
1807 fetch/store instructions will be emulated in software if you say
1808 here, which has a severe performance impact. This is necessary for
1809 correct operation of some network protocols. With an IP-only
1810 configuration it is safe to say N, otherwise say Y.
1811
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001812config UACCESS_WITH_MEMCPY
1813 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1814 depends on MMU && EXPERIMENTAL
1815 default y if CPU_FEROCEON
1816 help
1817 Implement faster copy_to_user and clear_user methods for CPU
1818 cores where a 8-word STM instruction give significantly higher
1819 memory write throughput than a sequence of individual 32bit stores.
1820
1821 A possible side effect is a slight increase in scheduling latency
1822 between threads sharing the same address space if they invoke
1823 such copy operations with large buffers.
1824
1825 However, if the CPU data cache is using a write-allocate mode,
1826 this option is unlikely to provide any performance gain.
1827
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001828config SECCOMP
1829 bool
1830 prompt "Enable seccomp to safely compute untrusted bytecode"
1831 ---help---
1832 This kernel feature is useful for number crunching applications
1833 that may need to compute untrusted bytecode during their
1834 execution. By using pipes or other transports made available to
1835 the process as file descriptors supporting the read/write
1836 syscalls, it's possible to isolate those applications in
1837 their own address space using seccomp. Once seccomp is
1838 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1839 and the task is only allowed to execute a few safe syscalls
1840 defined by each seccomp mode.
1841
Nicolas Pitrec743f382010-05-24 23:55:42 -04001842config CC_STACKPROTECTOR
1843 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001844 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001845 help
1846 This option turns on the -fstack-protector GCC feature. This
1847 feature puts, at the beginning of functions, a canary value on
1848 the stack just before the return address, and validates
1849 the value just before actually returning. Stack based buffer
1850 overflows (that need to overwrite this return address) now also
1851 overwrite the canary, which gets detected and the attack is then
1852 neutralized via a kernel panic.
1853 This feature requires gcc version 4.2 or above.
1854
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001855config DEPRECATED_PARAM_STRUCT
1856 bool "Provide old way to pass kernel parameters"
1857 help
1858 This was deprecated in 2001 and announced to live on for 5 years.
1859 Some old boot loaders still use this way.
1860
Linus Torvalds1da177e2005-04-16 15:20:36 -07001861endmenu
1862
1863menu "Boot options"
1864
Grant Likely9eb8f672011-04-28 14:27:20 -06001865config USE_OF
1866 bool "Flattened Device Tree support"
1867 select OF
1868 select OF_EARLY_FLATTREE
Grant Likely08a543a2011-07-26 03:19:06 -06001869 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001870 help
1871 Include support for flattened device tree machine descriptions.
1872
Linus Torvalds1da177e2005-04-16 15:20:36 -07001873# Compressed boot loader in ROM. Yes, we really want to ask about
1874# TEXT and BSS so we preserve their values in the config files.
1875config ZBOOT_ROM_TEXT
1876 hex "Compressed ROM boot loader base address"
1877 default "0"
1878 help
1879 The physical address at which the ROM-able zImage is to be
1880 placed in the target. Platforms which normally make use of
1881 ROM-able zImage formats normally set this to a suitable
1882 value in their defconfig file.
1883
1884 If ZBOOT_ROM is not enabled, this has no effect.
1885
1886config ZBOOT_ROM_BSS
1887 hex "Compressed ROM boot loader BSS address"
1888 default "0"
1889 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001890 The base address of an area of read/write memory in the target
1891 for the ROM-able zImage which must be available while the
1892 decompressor is running. It must be large enough to hold the
1893 entire decompressed kernel plus an additional 128 KiB.
1894 Platforms which normally make use of ROM-able zImage formats
1895 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001896
1897 If ZBOOT_ROM is not enabled, this has no effect.
1898
1899config ZBOOT_ROM
1900 bool "Compressed boot loader in ROM/flash"
1901 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1902 help
1903 Say Y here if you intend to execute your compressed kernel image
1904 (zImage) directly from ROM or flash. If unsure, say N.
1905
Simon Horman090ab3f2011-04-26 06:29:53 +01001906choice
1907 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1908 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1909 default ZBOOT_ROM_NONE
1910 help
1911 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001912 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001913 kernel image to an MMC or SD card and boot the kernel straight
1914 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001915 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001916 rest the kernel image to RAM.
1917
1918config ZBOOT_ROM_NONE
1919 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1920 help
1921 Do not load image from SD or MMC
1922
Simon Hormanf45b1142011-01-11 04:01:08 +01001923config ZBOOT_ROM_MMCIF
1924 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001925 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001926 Load image from MMCIF hardware block.
1927
1928config ZBOOT_ROM_SH_MOBILE_SDHI
1929 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1930 help
1931 Load image from SDHI hardware block
1932
1933endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001934
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001935config ARM_APPENDED_DTB
1936 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1937 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1938 help
1939 With this option, the boot code will look for a device tree binary
1940 (DTB) appended to zImage
1941 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1942
1943 This is meant as a backward compatibility convenience for those
1944 systems with a bootloader that can't be upgraded to accommodate
1945 the documented boot protocol using a device tree.
1946
1947 Beware that there is very little in terms of protection against
1948 this option being confused by leftover garbage in memory that might
1949 look like a DTB header after a reboot if no actual DTB is appended
1950 to zImage. Do not leave this option active in a production kernel
1951 if you don't intend to always append a DTB. Proper passing of the
1952 location into r2 of a bootloader provided DTB is always preferable
1953 to this option.
1954
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001955config ARM_ATAG_DTB_COMPAT
1956 bool "Supplement the appended DTB with traditional ATAG information"
1957 depends on ARM_APPENDED_DTB
1958 help
1959 Some old bootloaders can't be updated to a DTB capable one, yet
1960 they provide ATAGs with memory configuration, the ramdisk address,
1961 the kernel cmdline string, etc. Such information is dynamically
1962 provided by the bootloader and can't always be stored in a static
1963 DTB. To allow a device tree enabled kernel to be used with such
1964 bootloaders, this option allows zImage to extract the information
1965 from the ATAG list and store it at run time into the appended DTB.
1966
Linus Torvalds1da177e2005-04-16 15:20:36 -07001967config CMDLINE
1968 string "Default kernel command string"
1969 default ""
1970 help
1971 On some architectures (EBSA110 and CATS), there is currently no way
1972 for the boot loader to pass arguments to the kernel. For these
1973 architectures, you should supply some command-line options at build
1974 time by entering them here. As a minimum, you should specify the
1975 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1976
Victor Boivie4394c122011-05-04 17:07:55 +01001977choice
1978 prompt "Kernel command line type" if CMDLINE != ""
1979 default CMDLINE_FROM_BOOTLOADER
1980
1981config CMDLINE_FROM_BOOTLOADER
1982 bool "Use bootloader kernel arguments if available"
1983 help
1984 Uses the command-line options passed by the boot loader. If
1985 the boot loader doesn't provide any, the default kernel command
1986 string provided in CMDLINE will be used.
1987
1988config CMDLINE_EXTEND
1989 bool "Extend bootloader kernel arguments"
1990 help
1991 The command-line arguments provided by the boot loader will be
1992 appended to the default kernel command string.
1993
Alexander Holler92d20402010-02-16 19:04:53 +01001994config CMDLINE_FORCE
1995 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001996 help
1997 Always use the default kernel command string, even if the boot
1998 loader passes other arguments to the kernel.
1999 This is useful if you cannot or don't want to change the
2000 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01002001endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002002
Linus Torvalds1da177e2005-04-16 15:20:36 -07002003config XIP_KERNEL
2004 bool "Kernel Execute-In-Place from ROM"
Catalin Marinas497b7e92011-11-22 17:30:32 +00002005 depends on !ZBOOT_ROM && !ARM_LPAE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002006 help
2007 Execute-In-Place allows the kernel to run from non-volatile storage
2008 directly addressable by the CPU, such as NOR flash. This saves RAM
2009 space since the text section of the kernel is not loaded from flash
2010 to RAM. Read-write sections, such as the data section and stack,
2011 are still copied to RAM. The XIP kernel is not compressed since
2012 it has to run directly from flash, so it will take more space to
2013 store it. The flash address used to link the kernel object files,
2014 and for storing it, is configuration dependent. Therefore, if you
2015 say Y here, you must know the proper physical address where to
2016 store the kernel image depending on your own flash memory usage.
2017
2018 Also note that the make target becomes "make xipImage" rather than
2019 "make zImage" or "make Image". The final kernel binary to put in
2020 ROM memory will be arch/arm/boot/xipImage.
2021
2022 If unsure, say N.
2023
2024config XIP_PHYS_ADDR
2025 hex "XIP Kernel Physical Location"
2026 depends on XIP_KERNEL
2027 default "0x00080000"
2028 help
2029 This is the physical address in your flash memory the kernel will
2030 be linked for and stored to. This address is dependent on your
2031 own flash usage.
2032
Richard Purdiec587e4a2007-02-06 21:29:00 +01002033config KEXEC
2034 bool "Kexec system call (EXPERIMENTAL)"
Will Deacon02b73e22011-06-06 15:49:23 +01002035 depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002036 help
2037 kexec is a system call that implements the ability to shutdown your
2038 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002039 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002040 you can start any kernel with it, not just Linux.
2041
2042 It is an ongoing process to be certain the hardware in a machine
2043 is properly shutdown, so do not be surprised if this code does not
2044 initially work for you. It may help to enable device hotplugging
2045 support.
2046
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002047config ATAGS_PROC
2048 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01002049 depends on KEXEC
2050 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002051 help
2052 Should the atags used to boot the kernel be exported in an "atags"
2053 file in procfs. Useful with kexec.
2054
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002055config CRASH_DUMP
2056 bool "Build kdump crash kernel (EXPERIMENTAL)"
2057 depends on EXPERIMENTAL
2058 help
2059 Generate crash dump after being started by kexec. This should
2060 be normally only set in special crash dump kernels which are
2061 loaded in the main kernel with kexec-tools into a specially
2062 reserved region and then later executed after a crash by
2063 kdump/kexec. The crash dump kernel must be compiled to a
2064 memory address not used by the main kernel
2065
2066 For more details see Documentation/kdump/kdump.txt
2067
Eric Miaoe69edc792010-07-05 15:56:50 +02002068config AUTO_ZRELADDR
2069 bool "Auto calculation of the decompressed kernel image address"
2070 depends on !ZBOOT_ROM && !ARCH_U300
2071 help
2072 ZRELADDR is the physical address where the decompressed kernel
2073 image will be placed. If AUTO_ZRELADDR is selected, the address
2074 will be determined at run-time by masking the current IP with
2075 0xf8000000. This assumes the zImage being placed in the first 128MB
2076 from start of memory.
2077
Linus Torvalds1da177e2005-04-16 15:20:36 -07002078endmenu
2079
Russell Kingac9d7ef2008-08-18 17:26:00 +01002080menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002081
Ben Dooks89c52ed2009-07-30 23:23:24 +01002082if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002083
2084source "drivers/cpufreq/Kconfig"
2085
Yong Shen64f102b2010-10-21 21:18:59 +08002086config CPU_FREQ_IMX
2087 tristate "CPUfreq driver for i.MX CPUs"
2088 depends on ARCH_MXC && CPU_FREQ
2089 help
2090 This enables the CPUfreq driver for i.MX CPUs.
2091
Linus Torvalds1da177e2005-04-16 15:20:36 -07002092config CPU_FREQ_SA1100
2093 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002094
2095config CPU_FREQ_SA1110
2096 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002097
2098config CPU_FREQ_INTEGRATOR
2099 tristate "CPUfreq driver for ARM Integrator CPUs"
2100 depends on ARCH_INTEGRATOR && CPU_FREQ
2101 default y
2102 help
2103 This enables the CPUfreq driver for ARM Integrator CPUs.
2104
2105 For details, take a look at <file:Documentation/cpu-freq>.
2106
2107 If in doubt, say Y.
2108
Russell King9e2697f2007-12-14 13:30:14 +00002109config CPU_FREQ_PXA
2110 bool
2111 depends on CPU_FREQ && ARCH_PXA && PXA25x
2112 default y
Arnd Bergmannca7d1562011-10-01 22:03:51 +02002113 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002114 select CPU_FREQ_DEFAULT_GOV_USERSPACE
2115
Ben Dooks9d56c022009-07-30 23:23:25 +01002116config CPU_FREQ_S3C
2117 bool
2118 help
2119 Internal configuration node for common cpufreq on Samsung SoC
2120
2121config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002122 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09002123 depends on ARCH_S3C24XX && CPU_FREQ && EXPERIMENTAL
Ben Dooks9d56c022009-07-30 23:23:25 +01002124 select CPU_FREQ_S3C
2125 help
2126 This enables the CPUfreq driver for the Samsung S3C24XX family
2127 of CPUs.
2128
2129 For details, take a look at <file:Documentation/cpu-freq>.
2130
2131 If in doubt, say N.
2132
2133config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002134 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002135 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2136 help
2137 Compile in support for changing the PLL frequency from the
2138 S3C24XX series CPUfreq driver. The PLL takes time to settle
2139 after a frequency change, so by default it is not enabled.
2140
2141 This also means that the PLL tables for the selected CPU(s) will
2142 be built which may increase the size of the kernel image.
2143
2144config CPU_FREQ_S3C24XX_DEBUG
2145 bool "Debug CPUfreq Samsung driver core"
2146 depends on CPU_FREQ_S3C24XX
2147 help
2148 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2149
2150config CPU_FREQ_S3C24XX_IODEBUG
2151 bool "Debug CPUfreq Samsung driver IO timing"
2152 depends on CPU_FREQ_S3C24XX
2153 help
2154 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2155
Ben Dookse6d197a2009-07-30 23:23:42 +01002156config CPU_FREQ_S3C24XX_DEBUGFS
2157 bool "Export debugfs for CPUFreq"
2158 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2159 help
2160 Export status information via debugfs.
2161
Linus Torvalds1da177e2005-04-16 15:20:36 -07002162endif
2163
Russell Kingac9d7ef2008-08-18 17:26:00 +01002164source "drivers/cpuidle/Kconfig"
2165
2166endmenu
2167
Linus Torvalds1da177e2005-04-16 15:20:36 -07002168menu "Floating point emulation"
2169
2170comment "At least one emulation must be selected"
2171
2172config FPE_NWFPE
2173 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002174 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002175 ---help---
2176 Say Y to include the NWFPE floating point emulator in the kernel.
2177 This is necessary to run most binaries. Linux does not currently
2178 support floating point hardware so you need to say Y here even if
2179 your machine has an FPA or floating point co-processor podule.
2180
2181 You may say N here if you are going to load the Acorn FPEmulator
2182 early in the bootup.
2183
2184config FPE_NWFPE_XP
2185 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002186 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002187 help
2188 Say Y to include 80-bit support in the kernel floating-point
2189 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2190 Note that gcc does not generate 80-bit operations by default,
2191 so in most cases this option only enlarges the size of the
2192 floating point emulator without any good reason.
2193
2194 You almost surely want to say N here.
2195
2196config FPE_FASTFPE
2197 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002198 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002199 ---help---
2200 Say Y here to include the FAST floating point emulator in the kernel.
2201 This is an experimental much faster emulator which now also has full
2202 precision for the mantissa. It does not support any exceptions.
2203 It is very simple, and approximately 3-6 times faster than NWFPE.
2204
2205 It should be sufficient for most programs. It may be not suitable
2206 for scientific calculations, but you have to check this for yourself.
2207 If you do not feel you need a faster FP emulation you should better
2208 choose NWFPE.
2209
2210config VFP
2211 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002212 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002213 help
2214 Say Y to include VFP support code in the kernel. This is needed
2215 if your hardware includes a VFP unit.
2216
2217 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2218 release notes and additional status information.
2219
2220 Say N if your target does not have VFP hardware.
2221
Catalin Marinas25ebee02007-09-25 15:22:24 +01002222config VFPv3
2223 bool
2224 depends on VFP
2225 default y if CPU_V7
2226
Catalin Marinasb5872db2008-01-10 19:16:17 +01002227config NEON
2228 bool "Advanced SIMD (NEON) Extension support"
2229 depends on VFPv3 && CPU_V7
2230 help
2231 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2232 Extension.
2233
Linus Torvalds1da177e2005-04-16 15:20:36 -07002234endmenu
2235
2236menu "Userspace binary formats"
2237
2238source "fs/Kconfig.binfmt"
2239
2240config ARTHUR
2241 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00002242 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002243 help
2244 Say Y here to include the kernel code necessary if you want to run
2245 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2246 experimental; if this sounds frightening, say N and sleep in peace.
2247 You can also say M here to compile this support as a module (which
2248 will be called arthur).
2249
2250endmenu
2251
2252menu "Power management options"
2253
Russell Kingeceab4a2005-11-15 11:31:41 +00002254source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002255
Johannes Bergf4cb5702007-12-08 02:14:00 +01002256config ARCH_SUSPEND_POSSIBLE
Stephen Warren3d5e8af2012-04-13 15:30:07 -06002257 depends on !ARCH_S5PC100 && !ARCH_TEGRA
Russell King6a786182011-04-02 10:15:28 +01002258 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
Chao Xie3f5d0812012-05-07 11:23:58 +08002259 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002260 def_bool y
2261
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002262config ARM_CPU_SUSPEND
2263 def_bool PM_SLEEP
2264
Linus Torvalds1da177e2005-04-16 15:20:36 -07002265endmenu
2266
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002267source "net/Kconfig"
2268
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002269source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002270
2271source "fs/Kconfig"
2272
Linus Torvalds1da177e2005-04-16 15:20:36 -07002273source "arch/arm/Kconfig.debug"
2274
2275source "security/Kconfig"
2276
2277source "crypto/Kconfig"
2278
2279source "lib/Kconfig"