blob: f5e4233766e30a640800474947156e3f9cf33344 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
David Woodhousee17c6d52008-06-17 12:19:34 +01004 select HAVE_AOUT
Russell King24056f52011-01-03 11:29:28 +00005 select HAVE_DMA_API_DEBUG
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +02006 select HAVE_IDE if PCI || ISA || PCMCIA
Russell King2778f622010-07-09 16:27:52 +01007 select HAVE_MEMBLOCK
Alessandro Zummo12b824f2006-03-27 01:16:35 -08008 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +00009 select SYS_SUPPORTS_APM_EMULATION
Russell Kinga41297a2011-01-17 15:48:33 +000010 select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI)
Will Deaconfe166142010-04-30 11:37:51 +010011 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Rabin Vincent09f05d82012-02-18 17:52:41 +010012 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
Jason Wessel5cbad0e2008-02-20 13:33:40 -060013 select HAVE_ARCH_KGDB
Wade Farnsworth0693bf62012-04-04 16:19:47 +010014 select HAVE_ARCH_TRACEHOOK
Jon Medhurst856bc352011-06-14 13:09:39 +010015 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080016 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040017 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Rabin Vincent80be7a72010-08-10 19:58:17 +010018 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
19 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Rabin Vincent0e341af2010-11-06 23:03:53 +053020 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
David Daneye39f5602012-01-10 15:10:21 -080021 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040022 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080023 select HAVE_KERNEL_GZIP
24 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010025 select HAVE_KERNEL_LZMA
Imre Kaloza7f464f2012-01-26 13:08:57 +010026 select HAVE_KERNEL_XZ
Peter Zijlstrae360adb2010-10-14 14:01:34 +080027 select HAVE_IRQ_WORK
Jamie Iles7ada1892010-02-02 20:24:58 +010028 select HAVE_PERF_EVENTS
29 select PERF_USE_VMALLOC
Will Deacone513f8b2010-06-25 12:24:53 +010030 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kinge399b1a2011-01-17 15:08:32 +000031 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
Rabin Vincented604532010-11-30 17:36:48 +010032 select HAVE_C_RECORDMCOUNT
Lennert Buytenheke2a93ec2010-11-29 10:06:57 +010033 select HAVE_GENERIC_HARDIRQS
Stephen Boyd37e74be2012-04-16 22:53:44 +010034 select HARDIRQS_SW_RESEND
35 select GENERIC_IRQ_PROBE
Thomas Gleixner25a56622011-03-24 12:02:11 +010036 select GENERIC_IRQ_SHOW
Santosh Shilimkar1fb902632011-09-10 11:30:28 +053037 select CPU_PM if (SUSPEND || CPU_IDLE)
Michael S. Tsirkine5bfb722011-11-24 20:57:23 +020038 select GENERIC_PCI_IOMAP
Russell Kingfada8dc2012-03-27 10:44:23 +010039 select HAVE_BPF_JIT if NET
Linus Torvalds1da177e2005-04-16 15:20:36 -070040 help
41 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000042 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070043 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000044 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070045 Europe. There is an ARM Linux project with a web page at
46 <http://www.arm.linux.org.uk/>.
47
Russell King74facff2011-06-02 11:16:22 +010048config ARM_HAS_SG_CHAIN
49 bool
50
Russell King1a189b92008-04-13 21:41:55 +010051config HAVE_PWM
52 bool
53
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010054config MIGHT_HAVE_PCI
55 bool
56
Ralf Baechle75e71532007-02-09 17:08:58 +000057config SYS_SUPPORTS_APM_EMULATION
58 bool
59
David Brownell0a938b92007-03-05 00:30:18 -080060config GENERIC_GPIO
61 bool
David Brownell0a938b92007-03-05 00:30:18 -080062
John Stultz5cfc8ee2010-03-24 00:22:36 +000063config ARCH_USES_GETTIMEOFFSET
64 bool
65 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010066
Kevin Hilman0567a0c2007-03-13 20:29:24 +010067config GENERIC_CLOCKEVENTS
68 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010069
Catalin Marinasa8655e82008-02-04 17:30:57 +010070config GENERIC_CLOCKEVENTS_BROADCAST
71 bool
72 depends on GENERIC_CLOCKEVENTS
Russell King5388a6b2010-07-26 13:19:43 +010073 default y if SMP
Catalin Marinasa8655e82008-02-04 17:30:57 +010074
Rob Herringbf9dd362011-03-04 23:51:59 +010075config KTIME_SCALAR
76 bool
77 default y
78
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
107config MCA
108 bool
109 help
110 MicroChannel Architecture is found in some IBM PS/2 machines and
111 laptops. It is a bus system similar to PCI or ISA. See
112 <file:Documentation/mca.txt> (and especially the web page given
113 there) before attempting to build an MCA bus kernel.
114
Russell Kingf16fb1e2007-04-28 09:59:37 +0100115config STACKTRACE_SUPPORT
116 bool
117 default y
118
Nicolas Pitref76e9152008-04-24 01:31:46 -0400119config HAVE_LATENCYTOP_SUPPORT
120 bool
121 depends on !SMP
122 default y
123
Russell Kingf16fb1e2007-04-28 09:59:37 +0100124config LOCKDEP_SUPPORT
125 bool
126 default y
127
Russell King7ad1bcb2006-08-27 12:07:02 +0100128config TRACE_IRQFLAGS_SUPPORT
129 bool
130 default y
131
Nick Piggin95c354f2008-01-30 13:31:20 +0100132config GENERIC_LOCKBREAK
133 bool
134 default y
135 depends on SMP && PREEMPT
136
Linus Torvalds1da177e2005-04-16 15:20:36 -0700137config RWSEM_GENERIC_SPINLOCK
138 bool
139 default y
140
141config RWSEM_XCHGADD_ALGORITHM
142 bool
143
David Howellsf0d1b0b2006-12-08 02:37:49 -0800144config ARCH_HAS_ILOG2_U32
145 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800146
147config ARCH_HAS_ILOG2_U64
148 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800149
Ben Dooks89c52ed2009-07-30 23:23:24 +0100150config ARCH_HAS_CPUFREQ
151 bool
152 help
153 Internal node to signify that the ARCH has CPUFREQ support
154 and that the relevant menu configurations are displayed for
155 it.
156
Kevin Hilmanc7b0aff2010-10-01 22:13:47 +0100157config ARCH_HAS_CPU_IDLE_WAIT
158 def_bool y
159
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800160config GENERIC_HWEIGHT
161 bool
162 default y
163
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164config GENERIC_CALIBRATE_DELAY
165 bool
166 default y
167
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100168config ARCH_MAY_HAVE_PC_FDC
169 bool
170
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800171config ZONE_DMA
172 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800173
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800174config NEED_DMA_MAP_STATE
175 def_bool y
176
Rob Herring58af4a22012-03-20 14:33:01 -0500177config ARCH_HAS_DMA_SET_COHERENT_MASK
178 bool
179
Linus Torvalds1da177e2005-04-16 15:20:36 -0700180config GENERIC_ISA_DMA
181 bool
182
Linus Torvalds1da177e2005-04-16 15:20:36 -0700183config FIQ
184 bool
185
Rob Herring13a50452012-02-07 09:28:22 -0600186config NEED_RET_TO_USER
187 bool
188
Al Viro034d2f52005-12-19 16:27:59 -0500189config ARCH_MTD_XIP
190 bool
191
Hyok S. Choic760fc12006-03-27 15:18:50 +0100192config VECTORS_BASE
193 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900194 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100195 default DRAM_BASE if REMAP_VECTORS_TO_RAM
196 default 0x00000000
197 help
198 The base address of exception vectors.
199
Russell Kingdc21af92011-01-04 19:09:43 +0000200config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100201 bool "Patch physical to virtual translations at runtime" if EMBEDDED
202 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100203 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000204 depends on !ARCH_REALVIEW || !SPARSEMEM
205 help
Russell King111e9a52011-05-12 10:02:42 +0100206 Patch phys-to-virt and virt-to-phys translation functions at
207 boot and module load time according to the position of the
208 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000209
Russell King111e9a52011-05-12 10:02:42 +0100210 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100211 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000212
Russell Kingc1beced2011-08-10 10:23:45 +0100213 Only disable this option if you know that you do not require
214 this feature (eg, building a kernel for a single machine) and
215 you need to shrink the kernel to the minimal size.
216
Rob Herringc334bc12012-03-04 22:03:33 -0600217config NEED_MACH_IO_H
218 bool
219 help
220 Select this when mach/io.h is required to provide special
221 definitions for this platform. The need for mach/io.h should
222 be avoided when possible.
223
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400224config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400225 bool
Russell King111e9a52011-05-12 10:02:42 +0100226 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400227 Select this when mach/memory.h is required to provide special
228 definitions for this platform. The need for mach/memory.h should
229 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400230
231config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100232 hex "Physical address of main memory" if MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400233 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre974c0722011-12-02 23:09:42 +0100234 default DRAM_BASE if !MMU
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400235 help
236 Please provide the physical address corresponding to the
237 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000238
Simon Glass87e040b2011-08-16 23:44:26 +0100239config GENERIC_BUG
240 def_bool y
241 depends on BUG
242
Linus Torvalds1da177e2005-04-16 15:20:36 -0700243source "init/Kconfig"
244
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700245source "kernel/Kconfig.freezer"
246
Linus Torvalds1da177e2005-04-16 15:20:36 -0700247menu "System Type"
248
Hyok S. Choi3c427972009-07-24 12:35:00 +0100249config MMU
250 bool "MMU-based Paged Memory Management Support"
251 default y
252 help
253 Select if you want MMU-based virtualised addressing space
254 support by paged memory management. If unsure, say 'Y'.
255
Russell Kingccf50e22010-03-15 19:03:06 +0000256#
257# The "ARM system type" choice list is ordered alphabetically by option
258# text. Please add new entries in the option alphabetic order.
259#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700260choice
261 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000262 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700263
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100264config ARCH_INTEGRATOR
265 bool "ARM Ltd. Integrator family"
266 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100267 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100268 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900269 select HAVE_MACH_CLKDEV
Linus Walleij9904f792011-12-09 10:29:23 +0100270 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000271 select ICST
Russell King13edd862010-01-15 21:49:23 +0000272 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000273 select PLAT_VERSATILE
Russell Kingc41b16f2011-01-19 15:32:15 +0000274 select PLAT_VERSATILE_FPGA_IRQ
Rob Herringc334bc12012-03-04 22:03:33 -0600275 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400276 select NEED_MACH_MEMORY_H
Linus Walleij695436e2012-02-26 10:46:48 +0100277 select SPARSE_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100278 help
279 Support for ARM's Integrator platform.
280
281config ARCH_REALVIEW
282 bool "ARM Ltd. RealView family"
283 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100284 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900285 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000286 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100287 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100288 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000289 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000290 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000291 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100292 select GPIO_PL061 if GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400293 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100294 help
295 This enables support for ARM Ltd RealView boards.
296
297config ARCH_VERSATILE
298 bool "ARM Ltd. Versatile family"
299 select ARM_AMBA
300 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100301 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900302 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000303 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100304 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100305 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000306 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000307 select PLAT_VERSATILE_CLCD
Russell Kingc41b16f2011-01-19 15:32:15 +0000308 select PLAT_VERSATILE_FPGA_IRQ
Russell Kinge3887712010-01-14 13:30:16 +0000309 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100310 help
311 This enables support for ARM Ltd Versatile board.
312
Russell Kingceade892010-02-11 21:44:53 +0000313config ARCH_VEXPRESS
314 bool "ARM Ltd. Versatile Express family"
315 select ARCH_WANT_OPTIONAL_GPIOLIB
316 select ARM_AMBA
317 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100318 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900319 select HAVE_MACH_CLKDEV
Russell Kingceade892010-02-11 21:44:53 +0000320 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000321 select HAVE_CLK
Nick Bowler95c34f82011-01-21 15:51:06 +0100322 select HAVE_PATA_PLATFORM
Russell Kingceade892010-02-11 21:44:53 +0000323 select ICST
Russell Kingba81f502012-02-15 11:55:22 +0000324 select NO_IOPORT
Russell Kingceade892010-02-11 21:44:53 +0000325 select PLAT_VERSATILE
Russell King0fb44b92011-01-18 20:13:51 +0000326 select PLAT_VERSATILE_CLCD
Russell Kingceade892010-02-11 21:44:53 +0000327 help
328 This enables support for the ARM Ltd Versatile Express boards.
329
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100330config ARCH_AT91
331 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100332 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700333 select HAVE_CLK
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100334 select CLKDEV_LOOKUP
Nicolas Ferree2615012011-11-22 22:26:09 +0100335 select IRQ_DOMAIN
Rob Herring1ac02d72012-04-04 17:48:04 -0500336 select NEED_MACH_IO_H if PCCARD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100337 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100338 This enables support for systems based on the Atmel AT91RM9200,
Jean-Christophe PLAGNIOL-VILLARD9918cea2012-01-26 14:07:09 +0100339 AT91SAM9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100340
Russell Kingccf50e22010-03-15 19:03:06 +0000341config ARCH_BCMRING
342 bool "Broadcom BCMRING"
343 depends on MMU
344 select CPU_V6
345 select ARM_AMBA
Russell King82d63732011-05-12 13:43:39 +0100346 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100347 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000348 select GENERIC_CLOCKEVENTS
349 select ARCH_WANT_OPTIONAL_GPIOLIB
350 help
351 Support for Broadcom's BCMRing platform.
352
Rob Herring220e6cf2011-06-07 10:02:55 -0500353config ARCH_HIGHBANK
354 bool "Calxeda Highbank-based"
355 select ARCH_WANT_OPTIONAL_GPIOLIB
356 select ARM_AMBA
357 select ARM_GIC
358 select ARM_TIMER_SP804
Dave Martin22d80372011-12-12 16:17:34 +0000359 select CACHE_L2X0
Rob Herring220e6cf2011-06-07 10:02:55 -0500360 select CLKDEV_LOOKUP
361 select CPU_V7
362 select GENERIC_CLOCKEVENTS
363 select HAVE_ARM_SCU
Dave Martin3b556582011-12-07 15:38:04 +0000364 select HAVE_SMP
Rob Herringfdfa64a2012-01-03 14:44:31 -0600365 select SPARSE_IRQ
Rob Herring220e6cf2011-06-07 10:02:55 -0500366 select USE_OF
367 help
368 Support for the Calxeda Highbank SoC based boards.
369
Linus Torvalds1da177e2005-04-16 15:20:36 -0700370config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100371 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000372 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000373 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400374 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000375 help
376 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700377
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300378config ARCH_CNS3XXX
379 bool "Cavium Networks CNS3XXX family"
Imre Kaloz00d27112011-07-07 12:19:09 +0200380 select CPU_V6K
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300381 select GENERIC_CLOCKEVENTS
382 select ARM_GIC
Dave Martince5ea9f2011-11-29 15:56:19 +0000383 select MIGHT_HAVE_CACHE_L2X0
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100384 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400385 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300386 help
387 Support for Cavium Networks CNS3XXX platform.
388
Russell King788c9702009-04-26 14:21:59 +0100389config ARCH_GEMINI
390 bool "Cortina Systems Gemini"
391 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100392 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000393 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100394 help
395 Support for the Cortina Systems Gemini family SoCs
396
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200397config ARCH_PRIMA2
398 bool "CSR SiRFSoC PRIMA2 ARM Cortex A9 Platform"
399 select CPU_V7
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200400 select NO_IOPORT
401 select GENERIC_CLOCKEVENTS
402 select CLKDEV_LOOKUP
403 select GENERIC_IRQ_CHIP
Dave Martince5ea9f2011-11-29 15:56:19 +0000404 select MIGHT_HAVE_CACHE_L2X0
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200405 select USE_OF
406 select ZONE_DMA
407 help
408 Support for CSR SiRFSoC ARM Cortex A9 Platform
409
Linus Torvalds1da177e2005-04-16 15:20:36 -0700410config ARCH_EBSA110
411 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000412 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100413 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000414 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000415 select ARCH_USES_GETTIMEOFFSET
Rob Herringc334bc12012-03-04 22:03:33 -0600416 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400417 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700418 help
419 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000420 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700421 Ethernet interface, two PCMCIA sockets, two serial ports and a
422 parallel port.
423
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000424config ARCH_EP93XX
425 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000426 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000427 select ARM_AMBA
428 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100429 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700430 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100431 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000432 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100433 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000434 help
435 This enables support for the Cirrus EP93xx series of CPUs.
436
Linus Torvalds1da177e2005-04-16 15:20:36 -0700437config ARCH_FOOTBRIDGE
438 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000439 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700440 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000441 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200442 select HAVE_IDE
Rob Herringc334bc12012-03-04 22:03:33 -0600443 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400444 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000445 help
446 Support for systems based on the DC21285 companion chip
447 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700448
Russell King788c9702009-04-26 14:21:59 +0100449config ARCH_MXC
450 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100451 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100452 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100453 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100454 select CLKSRC_MMIO
Shawn Guo8b6c44f2011-06-07 13:59:14 +0800455 select GENERIC_IRQ_CHIP
Sascha Hauerffa2ea32011-09-20 14:31:24 +0200456 select MULTI_IRQ_HANDLER
Russell King788c9702009-04-26 14:21:59 +0100457 help
458 Support for Freescale MXC/iMX-based family of processors
459
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800460config ARCH_MXS
461 bool "Freescale MXS-based"
462 select GENERIC_CLOCKEVENTS
463 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100464 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100465 select CLKSRC_MMIO
Shawn Guo6abda3e2011-12-20 16:12:34 +0800466 select HAVE_CLK_PREPARE
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800467 help
468 Support for Freescale MXS-based family of processors
469
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100470config ARCH_NETX
471 bool "Hilscher NetX based"
Russell King234b6ced2011-05-08 14:09:47 +0100472 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000473 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100474 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100475 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000476 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100477 This enables support for systems based on the Hilscher NetX Soc
478
479config ARCH_H720X
480 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000481 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100482 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000483 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100484 help
485 This enables support for systems based on the Hynix HMS720x
486
Russell King3b938be2007-05-12 11:25:44 +0100487config ARCH_IOP13XX
488 bool "IOP13xx-based"
489 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000490 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100491 select PLAT_IOP
492 select PCI
493 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100494 select VMSPLIT_1G
Rob Herringc334bc12012-03-04 22:03:33 -0600495 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400496 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600497 select NEED_RET_TO_USER
Russell King3b938be2007-05-12 11:25:44 +0100498 help
499 Support for Intel's IOP13XX (XScale) family of processors.
500
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100501config ARCH_IOP32X
502 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100503 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000504 select CPU_XSCALE
Rob Herringc334bc12012-03-04 22:03:33 -0600505 select NEED_MACH_IO_H
Rob Herring13a50452012-02-07 09:28:22 -0600506 select NEED_RET_TO_USER
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100507 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100508 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100509 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000510 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100511 Support for Intel's 80219 and IOP32X (XScale) family of
512 processors.
513
514config ARCH_IOP33X
515 bool "IOP33x-based"
516 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000517 select CPU_XSCALE
Rob Herringc334bc12012-03-04 22:03:33 -0600518 select NEED_MACH_IO_H
Rob Herring13a50452012-02-07 09:28:22 -0600519 select NEED_RET_TO_USER
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100520 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100521 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100522 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100523 help
524 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700525
Russell King3b938be2007-05-12 11:25:44 +0100526config ARCH_IXP23XX
527 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100528 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000529 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100530 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000531 select ARCH_USES_GETTIMEOFFSET
Rob Herringc334bc12012-03-04 22:03:33 -0600532 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400533 select NEED_MACH_MEMORY_H
Dan Williams285f5fa2006-12-07 02:59:39 +0100534 help
Russell King3b938be2007-05-12 11:25:44 +0100535 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700536
537config ARCH_IXP2000
538 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100539 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000540 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100541 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000542 select ARCH_USES_GETTIMEOFFSET
Rob Herringc334bc12012-03-04 22:03:33 -0600543 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400544 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000545 help
546 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700547
Russell King3b938be2007-05-12 11:25:44 +0100548config ARCH_IXP4XX
549 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100550 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500551 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell King234b6ced2011-05-08 14:09:47 +0100552 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000553 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100554 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100555 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100556 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600557 select NEED_MACH_IO_H
Russell King485bdde2008-10-17 14:00:43 +0100558 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100559 help
Russell King3b938be2007-05-12 11:25:44 +0100560 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100561
Saeed Bisharaedabd382009-08-06 15:12:43 +0300562config ARCH_DOVE
563 bool "Marvell Dove"
Konstantin Porotchkin7b769bb2011-04-07 13:49:41 +0300564 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300565 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300566 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300567 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600568 select NEED_MACH_IO_H
Saeed Bisharaedabd382009-08-06 15:12:43 +0300569 select PLAT_ORION
570 help
571 Support for the Marvell Dove SoC 88AP510
572
Saeed Bishara651c74c2008-06-22 22:45:06 +0200573config ARCH_KIRKWOOD
574 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000575 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200576 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700577 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200578 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600579 select NEED_MACH_IO_H
Saeed Bishara651c74c2008-06-22 22:45:06 +0200580 select PLAT_ORION
581 help
582 Support for the following Marvell Kirkwood series SoCs:
583 88F6180, 88F6192 and 88F6281.
584
Kevin Wells40805942010-07-27 08:49:04 -0700585config ARCH_LPC32XX
586 bool "NXP LPC32XX"
Russell King234b6ced2011-05-08 14:09:47 +0100587 select CLKSRC_MMIO
Kevin Wells40805942010-07-27 08:49:04 -0700588 select CPU_ARM926T
589 select ARCH_REQUIRE_GPIOLIB
590 select HAVE_IDE
591 select ARM_AMBA
592 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100593 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700594 select GENERIC_CLOCKEVENTS
595 help
596 Support for the NXP LPC32XX family of processors
597
Russell King788c9702009-04-26 14:21:59 +0100598config ARCH_MV78XX0
599 bool "Marvell MV78xx0"
600 select CPU_FEROCEON
601 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700602 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100603 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600604 select NEED_MACH_IO_H
Russell King788c9702009-04-26 14:21:59 +0100605 select PLAT_ORION
606 help
607 Support for the following Marvell MV78xx0 series SoCs:
608 MV781x0, MV782x0.
609
610config ARCH_ORION5X
611 bool "Marvell Orion"
612 depends on MMU
613 select CPU_FEROCEON
614 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700615 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100616 select GENERIC_CLOCKEVENTS
617 select PLAT_ORION
618 help
619 Support for the following Marvell Orion 5x series SoCs:
620 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
621 Orion-2 (5281), Orion-1-90 (6183).
622
623config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500624 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100625 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100626 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100627 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100628 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800629 select GPIO_PXA
Russell King788c9702009-04-26 14:21:59 +0100630 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400631 select SPARSE_IRQ
Leo Yan3c7241b2011-08-15 11:09:52 +0800632 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100633 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500634 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100635
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100636config ARCH_KS8695
637 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000638 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100639 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000640 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400641 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100642 help
643 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
644 System-on-Chip devices.
645
Russell King788c9702009-04-26 14:21:59 +0100646config ARCH_W90X900
647 bool "Nuvoton W90X900 CPU"
648 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100649 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100650 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100651 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100652 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200653 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100654 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
655 At present, the w90x900 has been renamed nuc900, regarding
656 the ARM series product line, you can login the following
657 link address to know more.
658
659 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
660 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400661
Erik Gillingc5f80062010-01-21 16:53:02 -0800662config ARCH_TEGRA
663 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000664 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100665 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800666 select GENERIC_CLOCKEVENTS
667 select GENERIC_GPIO
668 select HAVE_CLK
Dave Martin3b556582011-12-07 15:38:04 +0000669 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000670 select MIGHT_HAVE_CACHE_L2X0
Rob Herringc334bc12012-03-04 22:03:33 -0600671 select NEED_MACH_IO_H if PCI
Colin Cross7056d422010-04-22 20:30:13 -0700672 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800673 help
674 This enables support for NVIDIA Tegra based systems (Tegra APX,
675 Tegra 6xx and Tegra 2 series).
676
Jamie Ilesaf756552011-07-25 17:36:42 +0100677config ARCH_PICOXCELL
678 bool "Picochip picoXcell"
679 select ARCH_REQUIRE_GPIOLIB
680 select ARM_PATCH_PHYS_VIRT
681 select ARM_VIC
682 select CPU_V6K
683 select DW_APB_TIMER
684 select GENERIC_CLOCKEVENTS
685 select GENERIC_GPIO
Jamie Ilesaf756552011-07-25 17:36:42 +0100686 select HAVE_TCM
687 select NO_IOPORT
Jamie Iles98e27a52011-12-12 20:17:37 +0000688 select SPARSE_IRQ
Jamie Ilesaf756552011-07-25 17:36:42 +0100689 select USE_OF
690 help
691 This enables support for systems based on the Picochip picoXcell
692 family of Femtocell devices. The picoxcell support requires device tree
693 for all boards.
694
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100695config ARCH_PNX4008
696 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000697 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100698 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000699 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100700 help
701 This enables support for Philips PNX4008 mobile platform.
702
Linus Torvalds1da177e2005-04-16 15:20:36 -0700703config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700704 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100705 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500706 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100707 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100708 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100709 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700710 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100711 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800712 select GPIO_PXA
Eric Miaobd5ce432009-01-20 12:06:01 +0800713 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800714 select SPARSE_IRQ
Eric Miao4e234cc2011-04-04 15:06:33 +0800715 select AUTO_ZRELADDR
Eric Miao8a97ae22011-05-18 21:30:04 +0800716 select MULTI_IRQ_HANDLER
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +0200717 select ARM_CPU_SUSPEND if PM
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200718 select HAVE_IDE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000719 help
eric miao2c8086a2007-09-11 19:13:17 -0700720 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700721
Russell King788c9702009-04-26 14:21:59 +0100722config ARCH_MSM
723 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500724 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800725 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700726 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800727 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800728 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800729 Support for Qualcomm MSM/QSD based systems. This runs on the
730 apps processor of the MSM/QSD and depends on a shared memory
731 interface to the modem processor which runs the baseband
732 stack and controls some vital subsystems
733 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800734
Magnus Dammc793c1b2010-02-05 11:14:49 +0000735config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900736 bool "Renesas SH-Mobile / R-Mobile"
737 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900738 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900739 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000740 select HAVE_SMP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900741 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000742 select MIGHT_HAVE_CACHE_L2X0
Paul Mundt6d72ad32010-11-16 16:10:20 +0900743 select NO_IOPORT
744 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000745 select MULTI_IRQ_HANDLER
Rafael J. Wysockie3e01092011-07-01 22:13:56 +0200746 select PM_GENERIC_DOMAINS if PM
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400747 select NEED_MACH_MEMORY_H
Magnus Dammc793c1b2010-02-05 11:14:49 +0000748 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900749 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000750
Linus Torvalds1da177e2005-04-16 15:20:36 -0700751config ARCH_RPC
752 bool "RiscPC"
753 select ARCH_ACORN
754 select FIQ
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100755 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100756 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000757 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000758 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100759 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000760 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200761 select HAVE_IDE
Rob Herringc334bc12012-03-04 22:03:33 -0600762 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400763 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700764 help
765 On the Acorn Risc-PC, Linux can support the internal IDE disk and
766 CD-ROM interface, serial and parallel port, and the floppy drive.
767
768config ARCH_SA1100
769 bool "SA1100-based"
Russell King234b6ced2011-05-08 14:09:47 +0100770 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000771 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100772 select ISA
Russell King05944d72006-11-30 20:43:51 +0000773 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500774 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100775 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000776 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100777 select GENERIC_CLOCKEVENTS
Jett.Zhou4a8f8342011-11-30 14:32:36 +0800778 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700779 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200780 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400781 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100782 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000783 help
784 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700785
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900786config ARCH_S3C24XX
787 bool "Samsung S3C24XX SoCs"
David Brownell0a938b92007-03-05 00:30:18 -0800788 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100789 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700790 select HAVE_CLK
Thomas Abrahame83626f2011-06-14 19:12:26 +0900791 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000792 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900793 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900794 select HAVE_S3C_RTC if RTC_CLASS
795 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Rob Herringc334bc12012-03-04 22:03:33 -0600796 select NEED_MACH_IO_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700797 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900798 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
799 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
800 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
801 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900802
Ben Dooksa08ab632008-10-21 14:06:39 +0100803config ARCH_S3C64XX
804 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000805 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900806 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900807 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100808 select HAVE_CLK
Mark Brown67003972011-10-11 08:57:11 +0900809 select HAVE_TCM
Thomas Abraham226e85f2011-06-14 19:12:26 +0900810 select CLKDEV_LOOKUP
Ben Dooks89f0ce72010-01-26 15:49:15 +0900811 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000812 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100813 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900814 select ARCH_REQUIRE_GPIOLIB
815 select SAMSUNG_CLKSRC
816 select SAMSUNG_IRQ_VIC_TIMER
Ben Dooks89f0ce72010-01-26 15:49:15 +0900817 select S3C_GPIO_TRACK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900818 select S3C_DEV_NAND
819 select USB_ARCH_HAS_OHCI
820 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900821 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900822 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100823 help
824 Samsung S3C64XX series based systems
825
Kukjin Kim49b7a492010-09-07 15:47:18 +0900826config ARCH_S5P64X0
827 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900828 select CPU_V6
829 select GENERIC_GPIO
830 select HAVE_CLK
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900831 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900832 select CLKSRC_MMIO
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900833 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900834 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900835 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900836 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900837 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900838 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
839 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900840
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200841config ARCH_S5PC100
842 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900843 select GENERIC_GPIO
844 select HAVE_CLK
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900845 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900846 select CPU_V7
Ben Dooks925c68c2010-05-20 20:48:28 +0900847 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900848 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900849 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900850 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900851 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200852 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900853
Kukjin Kim170f4e42010-02-24 16:40:44 +0900854config ARCH_S5PV210
855 bool "Samsung S5PV210/S5PC110"
856 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900857 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900858 select ARCH_HAS_HOLES_MEMORYMODEL
Kukjin Kim170f4e42010-02-24 16:40:44 +0900859 select GENERIC_GPIO
860 select HAVE_CLK
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900861 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900862 select CLKSRC_MMIO
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900863 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900864 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900865 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900866 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900867 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400868 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900869 help
870 Samsung S5PV210/S5PC110 series based systems
871
Kukjin Kim83014572011-11-06 13:54:56 +0900872config ARCH_EXYNOS
873 bool "SAMSUNG EXYNOS"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900874 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900875 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900876 select ARCH_HAS_HOLES_MEMORYMODEL
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900877 select GENERIC_GPIO
878 select HAVE_CLK
Thomas Abrahambadc4f22011-06-14 19:12:27 +0900879 select CLKDEV_LOOKUP
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900880 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900881 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900882 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900883 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900884 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400885 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900886 help
Kukjin Kim83014572011-11-06 13:54:56 +0900887 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900888
Linus Torvalds1da177e2005-04-16 15:20:36 -0700889config ARCH_SHARK
890 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000891 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100892 select ISA
893 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100894 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100895 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000896 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400897 select NEED_MACH_MEMORY_H
Rob Herringc334bc12012-03-04 22:03:33 -0600898 select NEED_MACH_IO_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000899 help
900 Support for the StrongARM based Digital DNARD machine, also known
901 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700902
Linus Walleijd98aac72009-04-27 10:21:46 +0100903config ARCH_U300
904 bool "ST-Ericsson U300 Series"
905 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100906 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100907 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100908 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100909 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200910 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100911 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100912 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100913 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900914 select HAVE_MACH_CLKDEV
Linus Walleijd98aac72009-04-27 10:21:46 +0100915 select GENERIC_GPIO
Linus Walleijcc890cd2011-09-08 09:04:51 +0100916 select ARCH_REQUIRE_GPIOLIB
Linus Walleijd98aac72009-04-27 10:21:46 +0100917 help
918 Support for ST-Ericsson U300 series mobile platforms.
919
Russell Kingccf50e22010-03-15 19:03:06 +0000920config ARCH_U8500
921 bool "ST-Ericsson U8500 Series"
Arnd Bergmann67ae14f2012-02-25 12:48:49 -0700922 depends on MMU
Russell Kingccf50e22010-03-15 19:03:06 +0000923 select CPU_V7
924 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000925 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100926 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100927 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100928 select ARCH_HAS_CPUFREQ
Dave Martin3b556582011-12-07 15:38:04 +0000929 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000930 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000931 help
932 Support for ST-Ericsson's Ux500 architecture
933
934config ARCH_NOMADIK
935 bool "STMicroelectronics Nomadik"
936 select ARM_AMBA
937 select ARM_VIC
938 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100939 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000940 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000941 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000942 select ARCH_REQUIRE_GPIOLIB
943 help
944 Support for the Nomadik platform by ST-Ericsson
945
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100946config ARCH_DAVINCI
947 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100948 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700949 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100950 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700951 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100952 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700953 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100954 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530955 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100956 help
957 Support for TI's DaVinci platform.
958
Russell King3b938be2007-05-12 11:25:44 +0100959config ARCH_OMAP
960 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700961 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700962 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100963 select ARCH_HAS_CPUFREQ
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700964 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700965 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800966 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100967 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200968 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100969
viresh kumarcee37e52010-04-01 12:31:05 +0100970config PLAT_SPEAR
971 bool "ST SPEAr"
972 select ARM_AMBA
973 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100974 select CLKDEV_LOOKUP
Russell Kingd6e15d72011-05-08 17:10:14 +0100975 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100976 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100977 select HAVE_CLK
978 help
979 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
980
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100981config ARCH_VT8500
982 bool "VIA/WonderMedia 85xx"
983 select CPU_ARM926T
984 select GENERIC_GPIO
985 select ARCH_HAS_CPUFREQ
986 select GENERIC_CLOCKEVENTS
987 select ARCH_REQUIRE_GPIOLIB
988 select HAVE_PWM
989 help
990 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +0800991
John Linnb85a3ef2011-06-20 11:47:27 -0600992config ARCH_ZYNQ
993 bool "Xilinx Zynq ARM Cortex A9 Platform"
Binghua Duan02c981c2011-07-08 17:40:12 +0800994 select CPU_V7
Binghua Duan02c981c2011-07-08 17:40:12 +0800995 select GENERIC_CLOCKEVENTS
996 select CLKDEV_LOOKUP
John Linnb85a3ef2011-06-20 11:47:27 -0600997 select ARM_GIC
998 select ARM_AMBA
999 select ICST
Dave Martince5ea9f2011-11-29 15:56:19 +00001000 select MIGHT_HAVE_CACHE_L2X0
Binghua Duan02c981c2011-07-08 17:40:12 +08001001 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +08001002 help
John Linnb85a3ef2011-06-20 11:47:27 -06001003 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -07001004endchoice
1005
Russell Kingccf50e22010-03-15 19:03:06 +00001006#
1007# This is sorted alphabetically by mach-* pathname. However, plat-*
1008# Kconfigs may be included either alphabetically (according to the
1009# plat- suffix) or along side the corresponding mach-* source.
1010#
Russell King95b8f202010-01-14 11:43:54 +00001011source "arch/arm/mach-at91/Kconfig"
1012
1013source "arch/arm/mach-bcmring/Kconfig"
1014
Linus Torvalds1da177e2005-04-16 15:20:36 -07001015source "arch/arm/mach-clps711x/Kconfig"
1016
Anton Vorontsovd94f9442010-03-25 17:12:41 +03001017source "arch/arm/mach-cns3xxx/Kconfig"
1018
Russell King95b8f202010-01-14 11:43:54 +00001019source "arch/arm/mach-davinci/Kconfig"
1020
1021source "arch/arm/mach-dove/Kconfig"
1022
Lennert Buytenheke7736d42006-03-20 17:10:13 +00001023source "arch/arm/mach-ep93xx/Kconfig"
1024
Linus Torvalds1da177e2005-04-16 15:20:36 -07001025source "arch/arm/mach-footbridge/Kconfig"
1026
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001027source "arch/arm/mach-gemini/Kconfig"
1028
Russell King95b8f202010-01-14 11:43:54 +00001029source "arch/arm/mach-h720x/Kconfig"
1030
Linus Torvalds1da177e2005-04-16 15:20:36 -07001031source "arch/arm/mach-integrator/Kconfig"
1032
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001033source "arch/arm/mach-iop32x/Kconfig"
1034
1035source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001036
Dan Williams285f5fa2006-12-07 02:59:39 +01001037source "arch/arm/mach-iop13xx/Kconfig"
1038
Linus Torvalds1da177e2005-04-16 15:20:36 -07001039source "arch/arm/mach-ixp4xx/Kconfig"
1040
1041source "arch/arm/mach-ixp2000/Kconfig"
1042
Lennert Buytenhekc4713072006-03-28 21:18:54 +01001043source "arch/arm/mach-ixp23xx/Kconfig"
1044
Russell King95b8f202010-01-14 11:43:54 +00001045source "arch/arm/mach-kirkwood/Kconfig"
1046
1047source "arch/arm/mach-ks8695/Kconfig"
1048
Kevin Wells40805942010-07-27 08:49:04 -07001049source "arch/arm/mach-lpc32xx/Kconfig"
1050
Russell King95b8f202010-01-14 11:43:54 +00001051source "arch/arm/mach-msm/Kconfig"
1052
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001053source "arch/arm/mach-mv78xx0/Kconfig"
1054
Russell King95b8f202010-01-14 11:43:54 +00001055source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001056
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001057source "arch/arm/mach-mxs/Kconfig"
1058
Russell King95b8f202010-01-14 11:43:54 +00001059source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001060
Russell King95b8f202010-01-14 11:43:54 +00001061source "arch/arm/mach-nomadik/Kconfig"
1062source "arch/arm/plat-nomadik/Kconfig"
1063
Tony Lindgrend48af152005-07-10 19:58:17 +01001064source "arch/arm/plat-omap/Kconfig"
1065
1066source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001067
Tony Lindgren1dbae812005-11-10 14:26:51 +00001068source "arch/arm/mach-omap2/Kconfig"
1069
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001070source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001071
Russell King95b8f202010-01-14 11:43:54 +00001072source "arch/arm/mach-pxa/Kconfig"
1073source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001074
Russell King95b8f202010-01-14 11:43:54 +00001075source "arch/arm/mach-mmp/Kconfig"
1076
1077source "arch/arm/mach-realview/Kconfig"
1078
1079source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001080
Ben Dookscf383672009-11-10 00:14:58 +00001081source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001082source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001083source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001084
viresh kumarcee37e52010-04-01 12:31:05 +01001085source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001086
Kukjin Kim85fd6d62012-02-06 09:38:19 +09001087source "arch/arm/mach-s3c24xx/Kconfig"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001088if ARCH_S3C24XX
Ben Dooksa21765a2007-02-11 18:31:01 +01001089source "arch/arm/mach-s3c2412/Kconfig"
1090source "arch/arm/mach-s3c2440/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001091endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001092
Ben Dooksa08ab632008-10-21 14:06:39 +01001093if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001094source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001095endif
1096
Kukjin Kim49b7a492010-09-07 15:47:18 +09001097source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001098
Byungho Min5a7652f2009-06-23 21:39:42 +09001099source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001100
Kukjin Kim170f4e42010-02-24 16:40:44 +09001101source "arch/arm/mach-s5pv210/Kconfig"
1102
Kukjin Kim83014572011-11-06 13:54:56 +09001103source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001104
Russell King882d01f2010-03-02 23:40:15 +00001105source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001106
Erik Gillingc5f80062010-01-21 16:53:02 -08001107source "arch/arm/mach-tegra/Kconfig"
1108
Russell King95b8f202010-01-14 11:43:54 +00001109source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001110
Russell King95b8f202010-01-14 11:43:54 +00001111source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001112
1113source "arch/arm/mach-versatile/Kconfig"
1114
Russell Kingceade892010-02-11 21:44:53 +00001115source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001116source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001117
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001118source "arch/arm/mach-vt8500/Kconfig"
1119
wanzongshun7ec80dd2008-12-03 03:55:38 +01001120source "arch/arm/mach-w90x900/Kconfig"
1121
Linus Torvalds1da177e2005-04-16 15:20:36 -07001122# Definitions to make life easier
1123config ARCH_ACORN
1124 bool
1125
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001126config PLAT_IOP
1127 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001128 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001129
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001130config PLAT_ORION
1131 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001132 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001133 select GENERIC_IRQ_CHIP
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001134
Eric Miaobd5ce432009-01-20 12:06:01 +08001135config PLAT_PXA
1136 bool
1137
Russell Kingf4b8b312010-01-14 12:48:06 +00001138config PLAT_VERSATILE
1139 bool
1140
Russell Kinge3887712010-01-14 13:30:16 +00001141config ARM_TIMER_SP804
1142 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001143 select CLKSRC_MMIO
Rob Herringa7bf6162011-12-12 15:29:08 -06001144 select HAVE_SCHED_CLOCK
Russell Kinge3887712010-01-14 13:30:16 +00001145
Linus Torvalds1da177e2005-04-16 15:20:36 -07001146source arch/arm/mm/Kconfig
1147
Russell King958cab02011-12-11 10:04:00 +00001148config ARM_NR_BANKS
1149 int
1150 default 16 if ARCH_EP93XX
1151 default 8
1152
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001153config IWMMXT
1154 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001155 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1156 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001157 help
1158 Enable support for iWMMXt context switching at run time if
1159 running on a CPU that supports it.
1160
Linus Torvalds1da177e2005-04-16 15:20:36 -07001161config XSCALE_PMU
1162 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001163 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001164 default y
1165
Jamie Iles0f4f0672010-02-02 20:23:15 +01001166config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001167 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001168 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001169 default y
1170 bool
1171
eric miao52108642010-12-13 09:42:34 +01001172config MULTI_IRQ_HANDLER
1173 bool
1174 help
1175 Allow each machine to specify it's own IRQ handler at run time.
1176
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001177if !MMU
1178source "arch/arm/Kconfig-nommu"
1179endif
1180
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001181config ARM_ERRATA_411920
1182 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001183 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001184 help
1185 Invalidation of the Instruction Cache operation can
1186 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1187 It does not affect the MPCore. This option enables the ARM Ltd.
1188 recommended workaround.
1189
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001190config ARM_ERRATA_430973
1191 bool "ARM errata: Stale prediction on replaced interworking branch"
1192 depends on CPU_V7
1193 help
1194 This option enables the workaround for the 430973 Cortex-A8
1195 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1196 interworking branch is replaced with another code sequence at the
1197 same virtual address, whether due to self-modifying code or virtual
1198 to physical address re-mapping, Cortex-A8 does not recover from the
1199 stale interworking branch prediction. This results in Cortex-A8
1200 executing the new code sequence in the incorrect ARM or Thumb state.
1201 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1202 and also flushes the branch target cache at every context switch.
1203 Note that setting specific bits in the ACTLR register may not be
1204 available in non-secure mode.
1205
Catalin Marinas855c5512009-04-30 17:06:15 +01001206config ARM_ERRATA_458693
1207 bool "ARM errata: Processor deadlock when a false hazard is created"
1208 depends on CPU_V7
1209 help
1210 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1211 erratum. For very specific sequences of memory operations, it is
1212 possible for a hazard condition intended for a cache line to instead
1213 be incorrectly associated with a different cache line. This false
1214 hazard might then cause a processor deadlock. The workaround enables
1215 the L1 caching of the NEON accesses and disables the PLD instruction
1216 in the ACTLR register. Note that setting specific bits in the ACTLR
1217 register may not be available in non-secure mode.
1218
Catalin Marinas0516e462009-04-30 17:06:20 +01001219config ARM_ERRATA_460075
1220 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1221 depends on CPU_V7
1222 help
1223 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1224 erratum. Any asynchronous access to the L2 cache may encounter a
1225 situation in which recent store transactions to the L2 cache are lost
1226 and overwritten with stale memory contents from external memory. The
1227 workaround disables the write-allocate mode for the L2 cache via the
1228 ACTLR register. Note that setting specific bits in the ACTLR register
1229 may not be available in non-secure mode.
1230
Will Deacon9f050272010-09-14 09:51:43 +01001231config ARM_ERRATA_742230
1232 bool "ARM errata: DMB operation may be faulty"
1233 depends on CPU_V7 && SMP
1234 help
1235 This option enables the workaround for the 742230 Cortex-A9
1236 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1237 between two write operations may not ensure the correct visibility
1238 ordering of the two writes. This workaround sets a specific bit in
1239 the diagnostic register of the Cortex-A9 which causes the DMB
1240 instruction to behave as a DSB, ensuring the correct behaviour of
1241 the two writes.
1242
Will Deacona672e992010-09-14 09:53:02 +01001243config ARM_ERRATA_742231
1244 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1245 depends on CPU_V7 && SMP
1246 help
1247 This option enables the workaround for the 742231 Cortex-A9
1248 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1249 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1250 accessing some data located in the same cache line, may get corrupted
1251 data due to bad handling of the address hazard when the line gets
1252 replaced from one of the CPUs at the same time as another CPU is
1253 accessing it. This workaround sets specific bits in the diagnostic
1254 register of the Cortex-A9 which reduces the linefill issuing
1255 capabilities of the processor.
1256
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001257config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001258 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001259 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001260 help
1261 The PL310 L2 cache controller implements three types of Clean &
1262 Invalidate maintenance operations: by Physical Address
1263 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1264 They are architecturally defined to behave as the execution of a
1265 clean operation followed immediately by an invalidate operation,
1266 both performing to the same memory location. This functionality
1267 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001268 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001269
1270config ARM_ERRATA_720789
1271 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001272 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001273 help
1274 This option enables the workaround for the 720789 Cortex-A9 (prior to
1275 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1276 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1277 As a consequence of this erratum, some TLB entries which should be
1278 invalidated are not, resulting in an incoherency in the system page
1279 tables. The workaround changes the TLB flushing routines to invalidate
1280 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001281
Russell King1f0090a2011-03-16 23:35:25 +00001282config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001283 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001284 depends on CACHE_L2X0
1285 help
1286 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1287 operation (offset 0x7FC). This operation runs in background so that
1288 PL310 can handle normal accesses while it is in progress. Under very
1289 rare circumstances, due to this erratum, write data can be lost when
1290 PL310 treats a cacheable write transaction during a Clean &
1291 Invalidate by Way operation.
1292
Will Deacon475d92f2010-09-28 14:02:02 +01001293config ARM_ERRATA_743622
1294 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1295 depends on CPU_V7
1296 help
1297 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001298 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001299 optimisation in the Cortex-A9 Store Buffer may lead to data
1300 corruption. This workaround sets a specific bit in the diagnostic
1301 register of the Cortex-A9 which disables the Store Buffer
1302 optimisation, preventing the defect from occurring. This has no
1303 visible impact on the overall performance or power consumption of the
1304 processor.
1305
Will Deacon9a27c272011-02-18 16:36:35 +01001306config ARM_ERRATA_751472
1307 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001308 depends on CPU_V7
Will Deacon9a27c272011-02-18 16:36:35 +01001309 help
1310 This option enables the workaround for the 751472 Cortex-A9 (prior
1311 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1312 completion of a following broadcasted operation if the second
1313 operation is received by a CPU before the ICIALLUIS has completed,
1314 potentially leading to corrupted entries in the cache or TLB.
1315
Will Deaconfa0ce402011-11-14 17:24:57 +01001316config PL310_ERRATA_753970
1317 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001318 depends on CACHE_PL310
1319 help
1320 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1321
1322 Under some condition the effect of cache sync operation on
1323 the store buffer still remains when the operation completes.
1324 This means that the store buffer is always asked to drain and
1325 this prevents it from merging any further writes. The workaround
1326 is to replace the normal offset of cache sync operation (0x730)
1327 by another offset targeting an unmapped PL310 register 0x740.
1328 This has the same effect as the cache sync operation: store buffer
1329 drain and waiting for all buffers empty.
1330
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001331config ARM_ERRATA_754322
1332 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1333 depends on CPU_V7
1334 help
1335 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1336 r3p*) erratum. A speculative memory access may cause a page table walk
1337 which starts prior to an ASID switch but completes afterwards. This
1338 can populate the micro-TLB with a stale entry which may be hit with
1339 the new ASID. This workaround places two dsb instructions in the mm
1340 switching code so that no page table walks can cross the ASID switch.
1341
Will Deacon5dab26af2011-03-04 12:38:54 +01001342config ARM_ERRATA_754327
1343 bool "ARM errata: no automatic Store Buffer drain"
1344 depends on CPU_V7 && SMP
1345 help
1346 This option enables the workaround for the 754327 Cortex-A9 (prior to
1347 r2p0) erratum. The Store Buffer does not have any automatic draining
1348 mechanism and therefore a livelock may occur if an external agent
1349 continuously polls a memory location waiting to observe an update.
1350 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1351 written polling loops from denying visibility of updates to memory.
1352
Catalin Marinas145e10e2011-08-15 11:04:41 +01001353config ARM_ERRATA_364296
1354 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1355 depends on CPU_V6 && !SMP
1356 help
1357 This options enables the workaround for the 364296 ARM1136
1358 r0p2 erratum (possible cache data corruption with
1359 hit-under-miss enabled). It sets the undocumented bit 31 in
1360 the auxiliary control register and the FI bit in the control
1361 register, thus disabling hit-under-miss without putting the
1362 processor into full low interrupt latency mode. ARM11MPCore
1363 is not affected.
1364
Will Deaconf630c1b2011-09-15 11:45:15 +01001365config ARM_ERRATA_764369
1366 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1367 depends on CPU_V7 && SMP
1368 help
1369 This option enables the workaround for erratum 764369
1370 affecting Cortex-A9 MPCore with two or more processors (all
1371 current revisions). Under certain timing circumstances, a data
1372 cache line maintenance operation by MVA targeting an Inner
1373 Shareable memory region may fail to proceed up to either the
1374 Point of Coherency or to the Point of Unification of the
1375 system. This workaround adds a DSB instruction before the
1376 relevant cache maintenance functions and sets a specific bit
1377 in the diagnostic control register of the SCU.
1378
Will Deacon11ed0ba2011-11-14 17:24:58 +01001379config PL310_ERRATA_769419
1380 bool "PL310 errata: no automatic Store Buffer drain"
1381 depends on CACHE_L2X0
1382 help
1383 On revisions of the PL310 prior to r3p2, the Store Buffer does
1384 not automatically drain. This can cause normal, non-cacheable
1385 writes to be retained when the memory system is idle, leading
1386 to suboptimal I/O performance for drivers using coherent DMA.
1387 This option adds a write barrier to the cpu_idle loop so that,
1388 on systems with an outer cache, the store buffer is drained
1389 explicitly.
1390
Linus Torvalds1da177e2005-04-16 15:20:36 -07001391endmenu
1392
1393source "arch/arm/common/Kconfig"
1394
Linus Torvalds1da177e2005-04-16 15:20:36 -07001395menu "Bus support"
1396
1397config ARM_AMBA
1398 bool
1399
1400config ISA
1401 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001402 help
1403 Find out whether you have ISA slots on your motherboard. ISA is the
1404 name of a bus system, i.e. the way the CPU talks to the other stuff
1405 inside your box. Other bus systems are PCI, EISA, MicroChannel
1406 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1407 newer boards don't support it. If you have ISA, say Y, otherwise N.
1408
Russell King065909b2006-01-04 15:44:16 +00001409# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001410config ISA_DMA
1411 bool
Russell King065909b2006-01-04 15:44:16 +00001412 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001413
Russell King065909b2006-01-04 15:44:16 +00001414# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001415config ISA_DMA_API
1416 bool
Al Viro5cae8412005-05-04 05:39:22 +01001417
Linus Torvalds1da177e2005-04-16 15:20:36 -07001418config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001419 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001420 help
1421 Find out whether you have a PCI motherboard. PCI is the name of a
1422 bus system, i.e. the way the CPU talks to the other stuff inside
1423 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1424 VESA. If you have PCI, say Y, otherwise N.
1425
Anton Vorontsov52882172010-04-19 13:20:49 +01001426config PCI_DOMAINS
1427 bool
1428 depends on PCI
1429
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001430config PCI_NANOENGINE
1431 bool "BSE nanoEngine PCI support"
1432 depends on SA1100_NANOENGINE
1433 help
1434 Enable PCI on the BSE nanoEngine board.
1435
Matthew Wilcox36e23592007-07-10 10:54:40 -06001436config PCI_SYSCALL
1437 def_bool PCI
1438
Linus Torvalds1da177e2005-04-16 15:20:36 -07001439# Select the host bridge type
1440config PCI_HOST_VIA82C505
1441 bool
1442 depends on PCI && ARCH_SHARK
1443 default y
1444
Mike Rapoporta0113a92007-11-25 08:55:34 +01001445config PCI_HOST_ITE8152
1446 bool
1447 depends on PCI && MACH_ARMCORE
1448 default y
1449 select DMABOUNCE
1450
Linus Torvalds1da177e2005-04-16 15:20:36 -07001451source "drivers/pci/Kconfig"
1452
1453source "drivers/pcmcia/Kconfig"
1454
1455endmenu
1456
1457menu "Kernel Features"
1458
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001459source "kernel/time/Kconfig"
1460
Dave Martin3b556582011-12-07 15:38:04 +00001461config HAVE_SMP
1462 bool
1463 help
1464 This option should be selected by machines which have an SMP-
1465 capable CPU.
1466
1467 The only effect of this option is to make the SMP-related
1468 options available to the user for configuration.
1469
Linus Torvalds1da177e2005-04-16 15:20:36 -07001470config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001471 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001472 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001473 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001474 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001475 depends on MMU
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001476 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001477 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001478 help
1479 This enables support for systems with more than one CPU. If you have
1480 a system with only one CPU, like most personal computers, say N. If
1481 you have a system with more than one CPU, say Y.
1482
1483 If you say N here, the kernel will run on single and multiprocessor
1484 machines, but will use only one CPU of a multiprocessor machine. If
1485 you say Y here, the kernel will run on many, but not all, single
1486 processor machines. On a single processor machine, the kernel will
1487 run faster if you say N here.
1488
Paul Bolle395cf962011-08-15 02:02:26 +02001489 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001490 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001491 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001492
1493 If you don't know what to do here, say N.
1494
Russell Kingf00ec482010-09-04 10:47:48 +01001495config SMP_ON_UP
1496 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1497 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001498 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001499 default y
1500 help
1501 SMP kernels contain instructions which fail on non-SMP processors.
1502 Enabling this option allows the kernel to modify itself to make
1503 these instructions safe. Disabling it allows about 1K of space
1504 savings.
1505
1506 If you don't know what to do here, say Y.
1507
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001508config ARM_CPU_TOPOLOGY
1509 bool "Support cpu topology definition"
1510 depends on SMP && CPU_V7
1511 default y
1512 help
1513 Support ARM cpu topology definition. The MPIDR register defines
1514 affinity between processors which is then used to describe the cpu
1515 topology of an ARM System.
1516
1517config SCHED_MC
1518 bool "Multi-core scheduler support"
1519 depends on ARM_CPU_TOPOLOGY
1520 help
1521 Multi-core scheduler support improves the CPU scheduler's decision
1522 making when dealing with multi-core CPU chips at a cost of slightly
1523 increased overhead in some places. If unsure say N here.
1524
1525config SCHED_SMT
1526 bool "SMT scheduler support"
1527 depends on ARM_CPU_TOPOLOGY
1528 help
1529 Improves the CPU scheduler's decision making when dealing with
1530 MultiThreading at a cost of slightly increased overhead in some
1531 places. If unsure say N here.
1532
Russell Kinga8cbcd92009-05-16 11:51:14 +01001533config HAVE_ARM_SCU
1534 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001535 help
1536 This option enables support for the ARM system coherency unit
1537
Russell Kingf32f4ce2009-05-16 12:14:21 +01001538config HAVE_ARM_TWD
1539 bool
1540 depends on SMP
1541 help
1542 This options enables support for the ARM timer and watchdog unit
1543
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001544choice
1545 prompt "Memory split"
1546 default VMSPLIT_3G
1547 help
1548 Select the desired split between kernel and user memory.
1549
1550 If you are not absolutely sure what you are doing, leave this
1551 option alone!
1552
1553 config VMSPLIT_3G
1554 bool "3G/1G user/kernel split"
1555 config VMSPLIT_2G
1556 bool "2G/2G user/kernel split"
1557 config VMSPLIT_1G
1558 bool "1G/3G user/kernel split"
1559endchoice
1560
1561config PAGE_OFFSET
1562 hex
1563 default 0x40000000 if VMSPLIT_1G
1564 default 0x80000000 if VMSPLIT_2G
1565 default 0xC0000000
1566
Linus Torvalds1da177e2005-04-16 15:20:36 -07001567config NR_CPUS
1568 int "Maximum number of CPUs (2-32)"
1569 range 2 32
1570 depends on SMP
1571 default "4"
1572
Russell Kinga054a812005-11-02 22:24:33 +00001573config HOTPLUG_CPU
1574 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1575 depends on SMP && HOTPLUG && EXPERIMENTAL
1576 help
1577 Say Y here to experiment with turning CPUs off and on. CPUs
1578 can be controlled through /sys/devices/system/cpu.
1579
Russell King37ee16a2005-11-08 19:08:05 +00001580config LOCAL_TIMERS
1581 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001582 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001583 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001584 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001585 help
1586 Enable support for local timers on SMP platforms, rather then the
1587 legacy IPI broadcast method. Local timers allows the system
1588 accounting to be spread across the timer interval, preventing a
1589 "thundering herd" at every timer tick.
1590
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001591config ARCH_NR_GPIO
1592 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001593 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Philippe Langlais70227a42012-02-13 10:51:22 +01001594 default 355 if ARCH_U8500
Paul Parsons9a01ec32012-02-27 01:58:45 +00001595 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001596 default 0
1597 help
1598 Maximum number of GPIOs in the system.
1599
1600 If unsure, leave the default value.
1601
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001602source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001603
Russell Kingf8065812006-03-02 22:41:59 +00001604config HZ
1605 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001606 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001607 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001608 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001609 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001610 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001611 default 100
1612
Catalin Marinas16c79652009-07-24 12:33:02 +01001613config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001614 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001615 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001616 select AEABI
1617 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001618 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001619 help
1620 By enabling this option, the kernel will be compiled in
1621 Thumb-2 mode. A compiler/assembler that understand the unified
1622 ARM-Thumb syntax is needed.
1623
1624 If unsure, say N.
1625
Dave Martin6f685c52011-03-03 11:41:12 +01001626config THUMB2_AVOID_R_ARM_THM_JUMP11
1627 bool "Work around buggy Thumb-2 short branch relocations in gas"
1628 depends on THUMB2_KERNEL && MODULES
1629 default y
1630 help
1631 Various binutils versions can resolve Thumb-2 branches to
1632 locally-defined, preemptible global symbols as short-range "b.n"
1633 branch instructions.
1634
1635 This is a problem, because there's no guarantee the final
1636 destination of the symbol, or any candidate locations for a
1637 trampoline, are within range of the branch. For this reason, the
1638 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1639 relocation in modules at all, and it makes little sense to add
1640 support.
1641
1642 The symptom is that the kernel fails with an "unsupported
1643 relocation" error when loading some modules.
1644
1645 Until fixed tools are available, passing
1646 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1647 code which hits this problem, at the cost of a bit of extra runtime
1648 stack usage in some cases.
1649
1650 The problem is described in more detail at:
1651 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1652
1653 Only Thumb-2 kernels are affected.
1654
1655 Unless you are sure your tools don't have this problem, say Y.
1656
Catalin Marinas0becb082009-07-24 12:32:53 +01001657config ARM_ASM_UNIFIED
1658 bool
1659
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001660config AEABI
1661 bool "Use the ARM EABI to compile the kernel"
1662 help
1663 This option allows for the kernel to be compiled using the latest
1664 ARM ABI (aka EABI). This is only useful if you are using a user
1665 space environment that is also compiled with EABI.
1666
1667 Since there are major incompatibilities between the legacy ABI and
1668 EABI, especially with regard to structure member alignment, this
1669 option also changes the kernel syscall calling convention to
1670 disambiguate both ABIs and allow for backward compatibility support
1671 (selected with CONFIG_OABI_COMPAT).
1672
1673 To use this you need GCC version 4.0.0 or later.
1674
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001675config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001676 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001677 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001678 default y
1679 help
1680 This option preserves the old syscall interface along with the
1681 new (ARM EABI) one. It also provides a compatibility layer to
1682 intercept syscalls that have structure arguments which layout
1683 in memory differs between the legacy ABI and the new ARM EABI
1684 (only for non "thumb" binaries). This option adds a tiny
1685 overhead to all syscalls and produces a slightly larger kernel.
1686 If you know you'll be using only pure EABI user space then you
1687 can say N here. If this option is not selected and you attempt
1688 to execute a legacy ABI binary then the result will be
1689 UNPREDICTABLE (in fact it can be predicted that it won't work
1690 at all). If in doubt say Y.
1691
Mel Gormaneb335752009-05-13 17:34:48 +01001692config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001693 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001694
Russell King05944d72006-11-30 20:43:51 +00001695config ARCH_SPARSEMEM_ENABLE
1696 bool
1697
Russell King07a2f732008-10-01 21:39:58 +01001698config ARCH_SPARSEMEM_DEFAULT
1699 def_bool ARCH_SPARSEMEM_ENABLE
1700
Russell King05944d72006-11-30 20:43:51 +00001701config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001702 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001703
Will Deacon7b7bf492011-05-19 13:21:14 +01001704config HAVE_ARCH_PFN_VALID
1705 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1706
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001707config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001708 bool "High Memory Support"
1709 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001710 help
1711 The address space of ARM processors is only 4 Gigabytes large
1712 and it has to accommodate user address space, kernel address
1713 space as well as some memory mapped IO. That means that, if you
1714 have a large amount of physical memory and/or IO, not all of the
1715 memory can be "permanently mapped" by the kernel. The physical
1716 memory that is not permanently mapped is called "high memory".
1717
1718 Depending on the selected kernel/user memory split, minimum
1719 vmalloc space and actual amount of RAM, you may not need this
1720 option which should result in a slightly faster kernel.
1721
1722 If unsure, say n.
1723
Russell King65cec8e2009-08-17 20:02:06 +01001724config HIGHPTE
1725 bool "Allocate 2nd-level pagetables from highmem"
1726 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001727
Jamie Iles1b8873a2010-02-02 20:25:44 +01001728config HW_PERF_EVENTS
1729 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001730 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001731 default y
1732 help
1733 Enable hardware performance counter support for perf events. If
1734 disabled, perf events will use software events only.
1735
Dave Hansen3f22ab22005-06-23 00:07:43 -07001736source "mm/Kconfig"
1737
Magnus Dammc1b2d972010-07-05 10:00:11 +01001738config FORCE_MAX_ZONEORDER
1739 int "Maximum zone order" if ARCH_SHMOBILE
1740 range 11 64 if ARCH_SHMOBILE
1741 default "9" if SA1111
1742 default "11"
1743 help
1744 The kernel memory allocator divides physically contiguous memory
1745 blocks into "zones", where each zone is a power of two number of
1746 pages. This option selects the largest power of two that the kernel
1747 keeps in the memory allocator. If you need to allocate very large
1748 blocks of physically contiguous memory, then you may need to
1749 increase this value.
1750
1751 This config option is actually maximum order plus one. For example,
1752 a value of 11 means that the largest free memory block is 2^10 pages.
1753
Linus Torvalds1da177e2005-04-16 15:20:36 -07001754config LEDS
1755 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001756 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001757 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001758 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1759 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001760 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001761 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001762 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001763 help
1764 If you say Y here, the LEDs on your machine will be used
1765 to provide useful information about your current system status.
1766
1767 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1768 be able to select which LEDs are active using the options below. If
1769 you are compiling a kernel for the EBSA-110 or the LART however, the
1770 red LED will simply flash regularly to indicate that the system is
1771 still functional. It is safe to say Y here if you have a CATS
1772 system, but the driver will do nothing.
1773
1774config LEDS_TIMER
1775 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001776 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1777 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001778 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001779 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001780 default y if ARCH_EBSA110
1781 help
1782 If you say Y here, one of the system LEDs (the green one on the
1783 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1784 will flash regularly to indicate that the system is still
1785 operational. This is mainly useful to kernel hackers who are
1786 debugging unstable kernels.
1787
1788 The LART uses the same LED for both Timer LED and CPU usage LED
1789 functions. You may choose to use both, but the Timer LED function
1790 will overrule the CPU usage LED.
1791
1792config LEDS_CPU
1793 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001794 !ARCH_OMAP) \
1795 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1796 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001797 depends on LEDS
1798 help
1799 If you say Y here, the red LED will be used to give a good real
1800 time indication of CPU usage, by lighting whenever the idle task
1801 is not currently executing.
1802
1803 The LART uses the same LED for both Timer LED and CPU usage LED
1804 functions. You may choose to use both, but the Timer LED function
1805 will overrule the CPU usage LED.
1806
1807config ALIGNMENT_TRAP
1808 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001809 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001810 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001811 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001812 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001813 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001814 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1815 address divisible by 4. On 32-bit ARM processors, these non-aligned
1816 fetch/store instructions will be emulated in software if you say
1817 here, which has a severe performance impact. This is necessary for
1818 correct operation of some network protocols. With an IP-only
1819 configuration it is safe to say N, otherwise say Y.
1820
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001821config UACCESS_WITH_MEMCPY
1822 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1823 depends on MMU && EXPERIMENTAL
1824 default y if CPU_FEROCEON
1825 help
1826 Implement faster copy_to_user and clear_user methods for CPU
1827 cores where a 8-word STM instruction give significantly higher
1828 memory write throughput than a sequence of individual 32bit stores.
1829
1830 A possible side effect is a slight increase in scheduling latency
1831 between threads sharing the same address space if they invoke
1832 such copy operations with large buffers.
1833
1834 However, if the CPU data cache is using a write-allocate mode,
1835 this option is unlikely to provide any performance gain.
1836
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001837config SECCOMP
1838 bool
1839 prompt "Enable seccomp to safely compute untrusted bytecode"
1840 ---help---
1841 This kernel feature is useful for number crunching applications
1842 that may need to compute untrusted bytecode during their
1843 execution. By using pipes or other transports made available to
1844 the process as file descriptors supporting the read/write
1845 syscalls, it's possible to isolate those applications in
1846 their own address space using seccomp. Once seccomp is
1847 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1848 and the task is only allowed to execute a few safe syscalls
1849 defined by each seccomp mode.
1850
Nicolas Pitrec743f382010-05-24 23:55:42 -04001851config CC_STACKPROTECTOR
1852 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001853 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001854 help
1855 This option turns on the -fstack-protector GCC feature. This
1856 feature puts, at the beginning of functions, a canary value on
1857 the stack just before the return address, and validates
1858 the value just before actually returning. Stack based buffer
1859 overflows (that need to overwrite this return address) now also
1860 overwrite the canary, which gets detected and the attack is then
1861 neutralized via a kernel panic.
1862 This feature requires gcc version 4.2 or above.
1863
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001864config DEPRECATED_PARAM_STRUCT
1865 bool "Provide old way to pass kernel parameters"
1866 help
1867 This was deprecated in 2001 and announced to live on for 5 years.
1868 Some old boot loaders still use this way.
1869
Linus Torvalds1da177e2005-04-16 15:20:36 -07001870endmenu
1871
1872menu "Boot options"
1873
Grant Likely9eb8f672011-04-28 14:27:20 -06001874config USE_OF
1875 bool "Flattened Device Tree support"
1876 select OF
1877 select OF_EARLY_FLATTREE
Grant Likely08a543a2011-07-26 03:19:06 -06001878 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001879 help
1880 Include support for flattened device tree machine descriptions.
1881
Linus Torvalds1da177e2005-04-16 15:20:36 -07001882# Compressed boot loader in ROM. Yes, we really want to ask about
1883# TEXT and BSS so we preserve their values in the config files.
1884config ZBOOT_ROM_TEXT
1885 hex "Compressed ROM boot loader base address"
1886 default "0"
1887 help
1888 The physical address at which the ROM-able zImage is to be
1889 placed in the target. Platforms which normally make use of
1890 ROM-able zImage formats normally set this to a suitable
1891 value in their defconfig file.
1892
1893 If ZBOOT_ROM is not enabled, this has no effect.
1894
1895config ZBOOT_ROM_BSS
1896 hex "Compressed ROM boot loader BSS address"
1897 default "0"
1898 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001899 The base address of an area of read/write memory in the target
1900 for the ROM-able zImage which must be available while the
1901 decompressor is running. It must be large enough to hold the
1902 entire decompressed kernel plus an additional 128 KiB.
1903 Platforms which normally make use of ROM-able zImage formats
1904 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001905
1906 If ZBOOT_ROM is not enabled, this has no effect.
1907
1908config ZBOOT_ROM
1909 bool "Compressed boot loader in ROM/flash"
1910 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1911 help
1912 Say Y here if you intend to execute your compressed kernel image
1913 (zImage) directly from ROM or flash. If unsure, say N.
1914
Simon Horman090ab3f2011-04-26 06:29:53 +01001915choice
1916 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1917 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1918 default ZBOOT_ROM_NONE
1919 help
1920 Include experimental SD/MMC loading code in the ROM-able zImage.
1921 With this enabled it is possible to write the the ROM-able zImage
1922 kernel image to an MMC or SD card and boot the kernel straight
1923 from the reset vector. At reset the processor Mask ROM will load
1924 the first part of the the ROM-able zImage which in turn loads the
1925 rest the kernel image to RAM.
1926
1927config ZBOOT_ROM_NONE
1928 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1929 help
1930 Do not load image from SD or MMC
1931
Simon Hormanf45b1142011-01-11 04:01:08 +01001932config ZBOOT_ROM_MMCIF
1933 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001934 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001935 Load image from MMCIF hardware block.
1936
1937config ZBOOT_ROM_SH_MOBILE_SDHI
1938 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1939 help
1940 Load image from SDHI hardware block
1941
1942endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001943
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001944config ARM_APPENDED_DTB
1945 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1946 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1947 help
1948 With this option, the boot code will look for a device tree binary
1949 (DTB) appended to zImage
1950 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1951
1952 This is meant as a backward compatibility convenience for those
1953 systems with a bootloader that can't be upgraded to accommodate
1954 the documented boot protocol using a device tree.
1955
1956 Beware that there is very little in terms of protection against
1957 this option being confused by leftover garbage in memory that might
1958 look like a DTB header after a reboot if no actual DTB is appended
1959 to zImage. Do not leave this option active in a production kernel
1960 if you don't intend to always append a DTB. Proper passing of the
1961 location into r2 of a bootloader provided DTB is always preferable
1962 to this option.
1963
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001964config ARM_ATAG_DTB_COMPAT
1965 bool "Supplement the appended DTB with traditional ATAG information"
1966 depends on ARM_APPENDED_DTB
1967 help
1968 Some old bootloaders can't be updated to a DTB capable one, yet
1969 they provide ATAGs with memory configuration, the ramdisk address,
1970 the kernel cmdline string, etc. Such information is dynamically
1971 provided by the bootloader and can't always be stored in a static
1972 DTB. To allow a device tree enabled kernel to be used with such
1973 bootloaders, this option allows zImage to extract the information
1974 from the ATAG list and store it at run time into the appended DTB.
1975
Linus Torvalds1da177e2005-04-16 15:20:36 -07001976config CMDLINE
1977 string "Default kernel command string"
1978 default ""
1979 help
1980 On some architectures (EBSA110 and CATS), there is currently no way
1981 for the boot loader to pass arguments to the kernel. For these
1982 architectures, you should supply some command-line options at build
1983 time by entering them here. As a minimum, you should specify the
1984 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1985
Victor Boivie4394c122011-05-04 17:07:55 +01001986choice
1987 prompt "Kernel command line type" if CMDLINE != ""
1988 default CMDLINE_FROM_BOOTLOADER
1989
1990config CMDLINE_FROM_BOOTLOADER
1991 bool "Use bootloader kernel arguments if available"
1992 help
1993 Uses the command-line options passed by the boot loader. If
1994 the boot loader doesn't provide any, the default kernel command
1995 string provided in CMDLINE will be used.
1996
1997config CMDLINE_EXTEND
1998 bool "Extend bootloader kernel arguments"
1999 help
2000 The command-line arguments provided by the boot loader will be
2001 appended to the default kernel command string.
2002
Alexander Holler92d20402010-02-16 19:04:53 +01002003config CMDLINE_FORCE
2004 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01002005 help
2006 Always use the default kernel command string, even if the boot
2007 loader passes other arguments to the kernel.
2008 This is useful if you cannot or don't want to change the
2009 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01002010endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002011
Linus Torvalds1da177e2005-04-16 15:20:36 -07002012config XIP_KERNEL
2013 bool "Kernel Execute-In-Place from ROM"
Catalin Marinas497b7e92011-11-22 17:30:32 +00002014 depends on !ZBOOT_ROM && !ARM_LPAE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002015 help
2016 Execute-In-Place allows the kernel to run from non-volatile storage
2017 directly addressable by the CPU, such as NOR flash. This saves RAM
2018 space since the text section of the kernel is not loaded from flash
2019 to RAM. Read-write sections, such as the data section and stack,
2020 are still copied to RAM. The XIP kernel is not compressed since
2021 it has to run directly from flash, so it will take more space to
2022 store it. The flash address used to link the kernel object files,
2023 and for storing it, is configuration dependent. Therefore, if you
2024 say Y here, you must know the proper physical address where to
2025 store the kernel image depending on your own flash memory usage.
2026
2027 Also note that the make target becomes "make xipImage" rather than
2028 "make zImage" or "make Image". The final kernel binary to put in
2029 ROM memory will be arch/arm/boot/xipImage.
2030
2031 If unsure, say N.
2032
2033config XIP_PHYS_ADDR
2034 hex "XIP Kernel Physical Location"
2035 depends on XIP_KERNEL
2036 default "0x00080000"
2037 help
2038 This is the physical address in your flash memory the kernel will
2039 be linked for and stored to. This address is dependent on your
2040 own flash usage.
2041
Richard Purdiec587e4a2007-02-06 21:29:00 +01002042config KEXEC
2043 bool "Kexec system call (EXPERIMENTAL)"
Will Deacon02b73e22011-06-06 15:49:23 +01002044 depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002045 help
2046 kexec is a system call that implements the ability to shutdown your
2047 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002048 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002049 you can start any kernel with it, not just Linux.
2050
2051 It is an ongoing process to be certain the hardware in a machine
2052 is properly shutdown, so do not be surprised if this code does not
2053 initially work for you. It may help to enable device hotplugging
2054 support.
2055
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002056config ATAGS_PROC
2057 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01002058 depends on KEXEC
2059 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002060 help
2061 Should the atags used to boot the kernel be exported in an "atags"
2062 file in procfs. Useful with kexec.
2063
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002064config CRASH_DUMP
2065 bool "Build kdump crash kernel (EXPERIMENTAL)"
2066 depends on EXPERIMENTAL
2067 help
2068 Generate crash dump after being started by kexec. This should
2069 be normally only set in special crash dump kernels which are
2070 loaded in the main kernel with kexec-tools into a specially
2071 reserved region and then later executed after a crash by
2072 kdump/kexec. The crash dump kernel must be compiled to a
2073 memory address not used by the main kernel
2074
2075 For more details see Documentation/kdump/kdump.txt
2076
Eric Miaoe69edc792010-07-05 15:56:50 +02002077config AUTO_ZRELADDR
2078 bool "Auto calculation of the decompressed kernel image address"
2079 depends on !ZBOOT_ROM && !ARCH_U300
2080 help
2081 ZRELADDR is the physical address where the decompressed kernel
2082 image will be placed. If AUTO_ZRELADDR is selected, the address
2083 will be determined at run-time by masking the current IP with
2084 0xf8000000. This assumes the zImage being placed in the first 128MB
2085 from start of memory.
2086
Linus Torvalds1da177e2005-04-16 15:20:36 -07002087endmenu
2088
Russell Kingac9d7ef2008-08-18 17:26:00 +01002089menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002090
Ben Dooks89c52ed2009-07-30 23:23:24 +01002091if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002092
2093source "drivers/cpufreq/Kconfig"
2094
Yong Shen64f102b2010-10-21 21:18:59 +08002095config CPU_FREQ_IMX
2096 tristate "CPUfreq driver for i.MX CPUs"
2097 depends on ARCH_MXC && CPU_FREQ
2098 help
2099 This enables the CPUfreq driver for i.MX CPUs.
2100
Linus Torvalds1da177e2005-04-16 15:20:36 -07002101config CPU_FREQ_SA1100
2102 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002103
2104config CPU_FREQ_SA1110
2105 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002106
2107config CPU_FREQ_INTEGRATOR
2108 tristate "CPUfreq driver for ARM Integrator CPUs"
2109 depends on ARCH_INTEGRATOR && CPU_FREQ
2110 default y
2111 help
2112 This enables the CPUfreq driver for ARM Integrator CPUs.
2113
2114 For details, take a look at <file:Documentation/cpu-freq>.
2115
2116 If in doubt, say Y.
2117
Russell King9e2697f2007-12-14 13:30:14 +00002118config CPU_FREQ_PXA
2119 bool
2120 depends on CPU_FREQ && ARCH_PXA && PXA25x
2121 default y
Arnd Bergmannca7d1562011-10-01 22:03:51 +02002122 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002123 select CPU_FREQ_DEFAULT_GOV_USERSPACE
2124
Ben Dooks9d56c022009-07-30 23:23:25 +01002125config CPU_FREQ_S3C
2126 bool
2127 help
2128 Internal configuration node for common cpufreq on Samsung SoC
2129
2130config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002131 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09002132 depends on ARCH_S3C24XX && CPU_FREQ && EXPERIMENTAL
Ben Dooks9d56c022009-07-30 23:23:25 +01002133 select CPU_FREQ_S3C
2134 help
2135 This enables the CPUfreq driver for the Samsung S3C24XX family
2136 of CPUs.
2137
2138 For details, take a look at <file:Documentation/cpu-freq>.
2139
2140 If in doubt, say N.
2141
2142config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002143 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002144 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2145 help
2146 Compile in support for changing the PLL frequency from the
2147 S3C24XX series CPUfreq driver. The PLL takes time to settle
2148 after a frequency change, so by default it is not enabled.
2149
2150 This also means that the PLL tables for the selected CPU(s) will
2151 be built which may increase the size of the kernel image.
2152
2153config CPU_FREQ_S3C24XX_DEBUG
2154 bool "Debug CPUfreq Samsung driver core"
2155 depends on CPU_FREQ_S3C24XX
2156 help
2157 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2158
2159config CPU_FREQ_S3C24XX_IODEBUG
2160 bool "Debug CPUfreq Samsung driver IO timing"
2161 depends on CPU_FREQ_S3C24XX
2162 help
2163 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2164
Ben Dookse6d197a2009-07-30 23:23:42 +01002165config CPU_FREQ_S3C24XX_DEBUGFS
2166 bool "Export debugfs for CPUFreq"
2167 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2168 help
2169 Export status information via debugfs.
2170
Linus Torvalds1da177e2005-04-16 15:20:36 -07002171endif
2172
Russell Kingac9d7ef2008-08-18 17:26:00 +01002173source "drivers/cpuidle/Kconfig"
2174
2175endmenu
2176
Linus Torvalds1da177e2005-04-16 15:20:36 -07002177menu "Floating point emulation"
2178
2179comment "At least one emulation must be selected"
2180
2181config FPE_NWFPE
2182 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002183 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002184 ---help---
2185 Say Y to include the NWFPE floating point emulator in the kernel.
2186 This is necessary to run most binaries. Linux does not currently
2187 support floating point hardware so you need to say Y here even if
2188 your machine has an FPA or floating point co-processor podule.
2189
2190 You may say N here if you are going to load the Acorn FPEmulator
2191 early in the bootup.
2192
2193config FPE_NWFPE_XP
2194 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002195 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002196 help
2197 Say Y to include 80-bit support in the kernel floating-point
2198 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2199 Note that gcc does not generate 80-bit operations by default,
2200 so in most cases this option only enlarges the size of the
2201 floating point emulator without any good reason.
2202
2203 You almost surely want to say N here.
2204
2205config FPE_FASTFPE
2206 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002207 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002208 ---help---
2209 Say Y here to include the FAST floating point emulator in the kernel.
2210 This is an experimental much faster emulator which now also has full
2211 precision for the mantissa. It does not support any exceptions.
2212 It is very simple, and approximately 3-6 times faster than NWFPE.
2213
2214 It should be sufficient for most programs. It may be not suitable
2215 for scientific calculations, but you have to check this for yourself.
2216 If you do not feel you need a faster FP emulation you should better
2217 choose NWFPE.
2218
2219config VFP
2220 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002221 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002222 help
2223 Say Y to include VFP support code in the kernel. This is needed
2224 if your hardware includes a VFP unit.
2225
2226 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2227 release notes and additional status information.
2228
2229 Say N if your target does not have VFP hardware.
2230
Catalin Marinas25ebee02007-09-25 15:22:24 +01002231config VFPv3
2232 bool
2233 depends on VFP
2234 default y if CPU_V7
2235
Catalin Marinasb5872db2008-01-10 19:16:17 +01002236config NEON
2237 bool "Advanced SIMD (NEON) Extension support"
2238 depends on VFPv3 && CPU_V7
2239 help
2240 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2241 Extension.
2242
Linus Torvalds1da177e2005-04-16 15:20:36 -07002243endmenu
2244
2245menu "Userspace binary formats"
2246
2247source "fs/Kconfig.binfmt"
2248
2249config ARTHUR
2250 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002251 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002252 help
2253 Say Y here to include the kernel code necessary if you want to run
2254 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2255 experimental; if this sounds frightening, say N and sleep in peace.
2256 You can also say M here to compile this support as a module (which
2257 will be called arthur).
2258
2259endmenu
2260
2261menu "Power management options"
2262
Russell Kingeceab4a2005-11-15 11:31:41 +00002263source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002264
Johannes Bergf4cb5702007-12-08 02:14:00 +01002265config ARCH_SUSPEND_POSSIBLE
Abhilash Kesavan6b6844d2011-10-04 20:30:22 +09002266 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002267 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
2268 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
Johannes Bergf4cb5702007-12-08 02:14:00 +01002269 def_bool y
2270
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002271config ARM_CPU_SUSPEND
2272 def_bool PM_SLEEP
2273
Linus Torvalds1da177e2005-04-16 15:20:36 -07002274endmenu
2275
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002276source "net/Kconfig"
2277
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002278source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002279
2280source "fs/Kconfig"
2281
Linus Torvalds1da177e2005-04-16 15:20:36 -07002282source "arch/arm/Kconfig.debug"
2283
2284source "security/Kconfig"
2285
2286source "crypto/Kconfig"
2287
2288source "lib/Kconfig"