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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)
Jason Wessel5cbad0e2008-02-20 13:33:40 -060012 select HAVE_ARCH_KGDB
Jon Medhurst856bc352011-06-14 13:09:39 +010013 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080014 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040015 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Rabin Vincent80be7a72010-08-10 19:58:17 +010016 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
17 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Rabin Vincent0e341af2010-11-06 23:03:53 +053018 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040019 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080020 select HAVE_KERNEL_GZIP
21 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010022 select HAVE_KERNEL_LZMA
Peter Zijlstrae360adb2010-10-14 14:01:34 +080023 select HAVE_IRQ_WORK
Jamie Iles7ada1892010-02-02 20:24:58 +010024 select HAVE_PERF_EVENTS
25 select PERF_USE_VMALLOC
Will Deacone513f8b2010-06-25 12:24:53 +010026 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kinge399b1a2011-01-17 15:08:32 +000027 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
Rabin Vincented604532010-11-30 17:36:48 +010028 select HAVE_C_RECORDMCOUNT
Lennert Buytenheke2a93ec2010-11-29 10:06:57 +010029 select HAVE_GENERIC_HARDIRQS
30 select HAVE_SPARSE_IRQ
Thomas Gleixner25a56622011-03-24 12:02:11 +010031 select GENERIC_IRQ_SHOW
Santosh Shilimkar1fb90262011-09-10 11:30:28 +053032 select CPU_PM if (SUSPEND || CPU_IDLE)
Linus Torvalds1da177e2005-04-16 15:20:36 -070033 help
34 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000035 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070036 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000037 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070038 Europe. There is an ARM Linux project with a web page at
39 <http://www.arm.linux.org.uk/>.
40
Russell King74facff2011-06-02 11:16:22 +010041config ARM_HAS_SG_CHAIN
42 bool
43
Russell King1a189b92008-04-13 21:41:55 +010044config HAVE_PWM
45 bool
46
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010047config MIGHT_HAVE_PCI
48 bool
49
Ralf Baechle75e71532007-02-09 17:08:58 +000050config SYS_SUPPORTS_APM_EMULATION
51 bool
52
Russell King112f38a42010-12-15 19:23:07 +000053config HAVE_SCHED_CLOCK
54 bool
55
David Brownell0a938b92007-03-05 00:30:18 -080056config GENERIC_GPIO
57 bool
David Brownell0a938b92007-03-05 00:30:18 -080058
John Stultz5cfc8ee2010-03-24 00:22:36 +000059config ARCH_USES_GETTIMEOFFSET
60 bool
61 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010062
Kevin Hilman0567a0c2007-03-13 20:29:24 +010063config GENERIC_CLOCKEVENTS
64 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010065
Catalin Marinasa8655e82008-02-04 17:30:57 +010066config GENERIC_CLOCKEVENTS_BROADCAST
67 bool
68 depends on GENERIC_CLOCKEVENTS
Russell King5388a6b2010-07-26 13:19:43 +010069 default y if SMP
Catalin Marinasa8655e82008-02-04 17:30:57 +010070
Rob Herringbf9dd362011-03-04 23:51:59 +010071config KTIME_SCALAR
72 bool
73 default y
74
Linus Walleijbc581772009-09-15 17:30:37 +010075config HAVE_TCM
76 bool
77 select GENERIC_ALLOCATOR
78
Russell Kinge119bff2010-01-10 17:23:29 +000079config HAVE_PROC_CPU
80 bool
81
Al Viro5ea81762007-02-11 15:41:31 +000082config NO_IOPORT
83 bool
Al Viro5ea81762007-02-11 15:41:31 +000084
Linus Torvalds1da177e2005-04-16 15:20:36 -070085config EISA
86 bool
87 ---help---
88 The Extended Industry Standard Architecture (EISA) bus was
89 developed as an open alternative to the IBM MicroChannel bus.
90
91 The EISA bus provided some of the features of the IBM MicroChannel
92 bus while maintaining backward compatibility with cards made for
93 the older ISA bus. The EISA bus saw limited use between 1988 and
94 1995 when it was made obsolete by the PCI bus.
95
96 Say Y here if you are building a kernel for an EISA-based machine.
97
98 Otherwise, say N.
99
100config SBUS
101 bool
102
103config MCA
104 bool
105 help
106 MicroChannel Architecture is found in some IBM PS/2 machines and
107 laptops. It is a bus system similar to PCI or ISA. See
108 <file:Documentation/mca.txt> (and especially the web page given
109 there) before attempting to build an MCA bus kernel.
110
Russell Kingf16fb1e2007-04-28 09:59:37 +0100111config STACKTRACE_SUPPORT
112 bool
113 default y
114
Nicolas Pitref76e9152008-04-24 01:31:46 -0400115config HAVE_LATENCYTOP_SUPPORT
116 bool
117 depends on !SMP
118 default y
119
Russell Kingf16fb1e2007-04-28 09:59:37 +0100120config LOCKDEP_SUPPORT
121 bool
122 default y
123
Russell King7ad1bcb2006-08-27 12:07:02 +0100124config TRACE_IRQFLAGS_SUPPORT
125 bool
126 default y
127
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100128config HARDIRQS_SW_RESEND
129 bool
130 default y
131
132config GENERIC_IRQ_PROBE
133 bool
134 default y
135
Nick Piggin95c354f2008-01-30 13:31:20 +0100136config GENERIC_LOCKBREAK
137 bool
138 default y
139 depends on SMP && PREEMPT
140
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141config RWSEM_GENERIC_SPINLOCK
142 bool
143 default y
144
145config RWSEM_XCHGADD_ALGORITHM
146 bool
147
David Howellsf0d1b0b2006-12-08 02:37:49 -0800148config ARCH_HAS_ILOG2_U32
149 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800150
151config ARCH_HAS_ILOG2_U64
152 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800153
Ben Dooks89c52ed2009-07-30 23:23:24 +0100154config ARCH_HAS_CPUFREQ
155 bool
156 help
157 Internal node to signify that the ARCH has CPUFREQ support
158 and that the relevant menu configurations are displayed for
159 it.
160
Kevin Hilmanc7b0aff2010-10-01 22:13:47 +0100161config ARCH_HAS_CPU_IDLE_WAIT
162 def_bool y
163
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800164config GENERIC_HWEIGHT
165 bool
166 default y
167
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168config GENERIC_CALIBRATE_DELAY
169 bool
170 default y
171
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100172config ARCH_MAY_HAVE_PC_FDC
173 bool
174
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800175config ZONE_DMA
176 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800177
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800178config NEED_DMA_MAP_STATE
179 def_bool y
180
Linus Torvalds1da177e2005-04-16 15:20:36 -0700181config GENERIC_ISA_DMA
182 bool
183
Linus Torvalds1da177e2005-04-16 15:20:36 -0700184config FIQ
185 bool
186
Al Viro034d2f52005-12-19 16:27:59 -0500187config ARCH_MTD_XIP
188 bool
189
Hyok S. Choic760fc12006-03-27 15:18:50 +0100190config VECTORS_BASE
191 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900192 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100193 default DRAM_BASE if REMAP_VECTORS_TO_RAM
194 default 0x00000000
195 help
196 The base address of exception vectors.
197
Russell Kingdc21af92011-01-04 19:09:43 +0000198config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100199 bool "Patch physical to virtual translations at runtime" if EMBEDDED
200 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100201 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000202 depends on !ARCH_REALVIEW || !SPARSEMEM
203 help
Russell King111e9a52011-05-12 10:02:42 +0100204 Patch phys-to-virt and virt-to-phys translation functions at
205 boot and module load time according to the position of the
206 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000207
Russell King111e9a52011-05-12 10:02:42 +0100208 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100209 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000210
Russell Kingc1beced2011-08-10 10:23:45 +0100211 Only disable this option if you know that you do not require
212 this feature (eg, building a kernel for a single machine) and
213 you need to shrink the kernel to the minimal size.
214
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400215config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400216 bool
Russell King111e9a52011-05-12 10:02:42 +0100217 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400218 Select this when mach/memory.h is required to provide special
219 definitions for this platform. The need for mach/memory.h should
220 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400221
222config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100223 hex "Physical address of main memory" if MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400224 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre974c0722011-12-02 23:09:42 +0100225 default DRAM_BASE if !MMU
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400226 help
227 Please provide the physical address corresponding to the
228 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000229
Simon Glass87e040b2011-08-16 23:44:26 +0100230config GENERIC_BUG
231 def_bool y
232 depends on BUG
233
Linus Torvalds1da177e2005-04-16 15:20:36 -0700234source "init/Kconfig"
235
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700236source "kernel/Kconfig.freezer"
237
Linus Torvalds1da177e2005-04-16 15:20:36 -0700238menu "System Type"
239
Hyok S. Choi3c427972009-07-24 12:35:00 +0100240config MMU
241 bool "MMU-based Paged Memory Management Support"
242 default y
243 help
244 Select if you want MMU-based virtualised addressing space
245 support by paged memory management. If unsure, say 'Y'.
246
Russell Kingccf50e22010-03-15 19:03:06 +0000247#
248# The "ARM system type" choice list is ordered alphabetically by option
249# text. Please add new entries in the option alphabetic order.
250#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700251choice
252 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000253 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700254
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100255config ARCH_INTEGRATOR
256 bool "ARM Ltd. Integrator family"
257 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100258 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100259 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900260 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000261 select ICST
Russell King13edd862010-01-15 21:49:23 +0000262 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000263 select PLAT_VERSATILE
Russell Kingc41b16f2011-01-19 15:32:15 +0000264 select PLAT_VERSATILE_FPGA_IRQ
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400265 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100266 help
267 Support for ARM's Integrator platform.
268
269config ARCH_REALVIEW
270 bool "ARM Ltd. RealView family"
271 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100272 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900273 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000274 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100275 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100276 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000277 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000278 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000279 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100280 select GPIO_PL061 if GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400281 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100282 help
283 This enables support for ARM Ltd RealView boards.
284
285config ARCH_VERSATILE
286 bool "ARM Ltd. Versatile family"
287 select ARM_AMBA
288 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100289 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900290 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000291 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100292 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100293 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000294 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000295 select PLAT_VERSATILE_CLCD
Russell Kingc41b16f2011-01-19 15:32:15 +0000296 select PLAT_VERSATILE_FPGA_IRQ
Russell Kinge3887712010-01-14 13:30:16 +0000297 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100298 help
299 This enables support for ARM Ltd Versatile board.
300
Russell Kingceade892010-02-11 21:44:53 +0000301config ARCH_VEXPRESS
302 bool "ARM Ltd. Versatile Express family"
303 select ARCH_WANT_OPTIONAL_GPIOLIB
304 select ARM_AMBA
305 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100306 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900307 select HAVE_MACH_CLKDEV
Russell Kingceade892010-02-11 21:44:53 +0000308 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000309 select HAVE_CLK
Nick Bowler95c34f82011-01-21 15:51:06 +0100310 select HAVE_PATA_PLATFORM
Russell Kingceade892010-02-11 21:44:53 +0000311 select ICST
312 select PLAT_VERSATILE
Russell King0fb44b92011-01-18 20:13:51 +0000313 select PLAT_VERSATILE_CLCD
Russell Kingceade892010-02-11 21:44:53 +0000314 help
315 This enables support for the ARM Ltd Versatile Express boards.
316
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100317config ARCH_AT91
318 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100319 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700320 select HAVE_CLK
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100321 select CLKDEV_LOOKUP
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100322 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100323 This enables support for systems based on the Atmel AT91RM9200,
324 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100325
Russell Kingccf50e22010-03-15 19:03:06 +0000326config ARCH_BCMRING
327 bool "Broadcom BCMRING"
328 depends on MMU
329 select CPU_V6
330 select ARM_AMBA
Russell King82d63732011-05-12 13:43:39 +0100331 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100332 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000333 select GENERIC_CLOCKEVENTS
334 select ARCH_WANT_OPTIONAL_GPIOLIB
335 help
336 Support for Broadcom's BCMRing platform.
337
Rob Herring220e6cf2011-06-07 10:02:55 -0500338config ARCH_HIGHBANK
339 bool "Calxeda Highbank-based"
340 select ARCH_WANT_OPTIONAL_GPIOLIB
341 select ARM_AMBA
342 select ARM_GIC
343 select ARM_TIMER_SP804
344 select CLKDEV_LOOKUP
345 select CPU_V7
346 select GENERIC_CLOCKEVENTS
347 select HAVE_ARM_SCU
348 select USE_OF
349 help
350 Support for the Calxeda Highbank SoC based boards.
351
Linus Torvalds1da177e2005-04-16 15:20:36 -0700352config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100353 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000354 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000355 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400356 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000357 help
358 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700359
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300360config ARCH_CNS3XXX
361 bool "Cavium Networks CNS3XXX family"
Imre Kaloz00d27112011-07-07 12:19:09 +0200362 select CPU_V6K
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300363 select GENERIC_CLOCKEVENTS
364 select ARM_GIC
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100365 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400366 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300367 help
368 Support for Cavium Networks CNS3XXX platform.
369
Russell King788c9702009-04-26 14:21:59 +0100370config ARCH_GEMINI
371 bool "Cortina Systems Gemini"
372 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100373 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000374 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100375 help
376 Support for the Cortina Systems Gemini family SoCs
377
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200378config ARCH_PRIMA2
379 bool "CSR SiRFSoC PRIMA2 ARM Cortex A9 Platform"
380 select CPU_V7
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200381 select NO_IOPORT
382 select GENERIC_CLOCKEVENTS
383 select CLKDEV_LOOKUP
384 select GENERIC_IRQ_CHIP
385 select USE_OF
386 select ZONE_DMA
387 help
388 Support for CSR SiRFSoC ARM Cortex A9 Platform
389
Linus Torvalds1da177e2005-04-16 15:20:36 -0700390config ARCH_EBSA110
391 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000392 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100393 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000394 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000395 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400396 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700397 help
398 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000399 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700400 Ethernet interface, two PCMCIA sockets, two serial ports and a
401 parallel port.
402
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000403config ARCH_EP93XX
404 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000405 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000406 select ARM_AMBA
407 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100408 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700409 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100410 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000411 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100412 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000413 help
414 This enables support for the Cirrus EP93xx series of CPUs.
415
Linus Torvalds1da177e2005-04-16 15:20:36 -0700416config ARCH_FOOTBRIDGE
417 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000418 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700419 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000420 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200421 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400422 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000423 help
424 Support for systems based on the DC21285 companion chip
425 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426
Russell King788c9702009-04-26 14:21:59 +0100427config ARCH_MXC
428 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100429 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100430 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100431 select CLKDEV_LOOKUP
Russell King234b6ce2011-05-08 14:09:47 +0100432 select CLKSRC_MMIO
Shawn Guo8b6c44f2011-06-07 13:59:14 +0800433 select GENERIC_IRQ_CHIP
Jan Weitzelc124bef2011-03-17 13:44:30 +0100434 select HAVE_SCHED_CLOCK
Sascha Hauerffa2ea32011-09-20 14:31:24 +0200435 select MULTI_IRQ_HANDLER
Russell King788c9702009-04-26 14:21:59 +0100436 help
437 Support for Freescale MXC/iMX-based family of processors
438
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800439config ARCH_MXS
440 bool "Freescale MXS-based"
441 select GENERIC_CLOCKEVENTS
442 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100443 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100444 select CLKSRC_MMIO
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800445 help
446 Support for Freescale MXS-based family of processors
447
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100448config ARCH_NETX
449 bool "Hilscher NetX based"
Russell King234b6ce2011-05-08 14:09:47 +0100450 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000451 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100452 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100453 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000454 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100455 This enables support for systems based on the Hilscher NetX Soc
456
457config ARCH_H720X
458 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000459 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100460 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000461 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100462 help
463 This enables support for systems based on the Hynix HMS720x
464
Russell King3b938be2007-05-12 11:25:44 +0100465config ARCH_IOP13XX
466 bool "IOP13xx-based"
467 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000468 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100469 select PLAT_IOP
470 select PCI
471 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100472 select VMSPLIT_1G
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400473 select NEED_MACH_MEMORY_H
Russell King3b938be2007-05-12 11:25:44 +0100474 help
475 Support for Intel's IOP13XX (XScale) family of processors.
476
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100477config ARCH_IOP32X
478 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100479 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000480 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100481 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100482 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100483 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000484 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100485 Support for Intel's 80219 and IOP32X (XScale) family of
486 processors.
487
488config ARCH_IOP33X
489 bool "IOP33x-based"
490 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000491 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100492 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100493 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100494 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100495 help
496 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700497
Russell King3b938be2007-05-12 11:25:44 +0100498config ARCH_IXP23XX
499 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100500 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000501 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100502 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000503 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400504 select NEED_MACH_MEMORY_H
Dan Williams285f5fa2006-12-07 02:59:39 +0100505 help
Russell King3b938be2007-05-12 11:25:44 +0100506 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700507
508config ARCH_IXP2000
509 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100510 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000511 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100512 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000513 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400514 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000515 help
516 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700517
Russell King3b938be2007-05-12 11:25:44 +0100518config ARCH_IXP4XX
519 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100520 depends on MMU
Russell King234b6ce2011-05-08 14:09:47 +0100521 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000522 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100523 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100524 select GENERIC_CLOCKEVENTS
Russell King5b0d4952010-12-15 21:23:13 +0000525 select HAVE_SCHED_CLOCK
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100526 select MIGHT_HAVE_PCI
Russell King485bdde2008-10-17 14:00:43 +0100527 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100528 help
Russell King3b938be2007-05-12 11:25:44 +0100529 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100530
Saeed Bisharaedabd382009-08-06 15:12:43 +0300531config ARCH_DOVE
532 bool "Marvell Dove"
Konstantin Porotchkin7b769bb2011-04-07 13:49:41 +0300533 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300534 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300535 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300536 select GENERIC_CLOCKEVENTS
537 select PLAT_ORION
538 help
539 Support for the Marvell Dove SoC 88AP510
540
Saeed Bishara651c74c2008-06-22 22:45:06 +0200541config ARCH_KIRKWOOD
542 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000543 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200544 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700545 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200546 select GENERIC_CLOCKEVENTS
547 select PLAT_ORION
548 help
549 Support for the following Marvell Kirkwood series SoCs:
550 88F6180, 88F6192 and 88F6281.
551
Kevin Wells40805942010-07-27 08:49:04 -0700552config ARCH_LPC32XX
553 bool "NXP LPC32XX"
Russell King234b6ce2011-05-08 14:09:47 +0100554 select CLKSRC_MMIO
Kevin Wells40805942010-07-27 08:49:04 -0700555 select CPU_ARM926T
556 select ARCH_REQUIRE_GPIOLIB
557 select HAVE_IDE
558 select ARM_AMBA
559 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100560 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700561 select GENERIC_CLOCKEVENTS
562 help
563 Support for the NXP LPC32XX family of processors
564
Russell King788c9702009-04-26 14:21:59 +0100565config ARCH_MV78XX0
566 bool "Marvell MV78xx0"
567 select CPU_FEROCEON
568 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700569 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100570 select GENERIC_CLOCKEVENTS
571 select PLAT_ORION
572 help
573 Support for the following Marvell MV78xx0 series SoCs:
574 MV781x0, MV782x0.
575
576config ARCH_ORION5X
577 bool "Marvell Orion"
578 depends on MMU
579 select CPU_FEROCEON
580 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700581 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100582 select GENERIC_CLOCKEVENTS
583 select PLAT_ORION
584 help
585 Support for the following Marvell Orion 5x series SoCs:
586 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
587 Orion-2 (5281), Orion-1-90 (6183).
588
589config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500590 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100591 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100592 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100593 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100594 select GENERIC_CLOCKEVENTS
Russell King28bb7bc2010-12-15 21:46:48 +0000595 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100596 select TICK_ONESHOT
597 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400598 select SPARSE_IRQ
Leo Yan3c7241b2011-08-15 11:09:52 +0800599 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100600 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500601 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100602
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100603config ARCH_KS8695
604 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000605 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100606 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000607 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400608 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100609 help
610 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
611 System-on-Chip devices.
612
Russell King788c9702009-04-26 14:21:59 +0100613config ARCH_W90X900
614 bool "Nuvoton W90X900 CPU"
615 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100616 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100617 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100618 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100619 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200620 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100621 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
622 At present, the w90x900 has been renamed nuc900, regarding
623 the ARM series product line, you can login the following
624 link address to know more.
625
626 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
627 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400628
Erik Gillingc5f80062010-01-21 16:53:02 -0800629config ARCH_TEGRA
630 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000631 select CLKDEV_LOOKUP
Russell King234b6ce2011-05-08 14:09:47 +0100632 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800633 select GENERIC_CLOCKEVENTS
634 select GENERIC_GPIO
635 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000636 select HAVE_SCHED_CLOCK
Colin Cross7056d422010-04-22 20:30:13 -0700637 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800638 help
639 This enables support for NVIDIA Tegra based systems (Tegra APX,
640 Tegra 6xx and Tegra 2 series).
641
Jamie Ilesaf756552011-07-25 17:36:42 +0100642config ARCH_PICOXCELL
643 bool "Picochip picoXcell"
644 select ARCH_REQUIRE_GPIOLIB
645 select ARM_PATCH_PHYS_VIRT
646 select ARM_VIC
647 select CPU_V6K
648 select DW_APB_TIMER
649 select GENERIC_CLOCKEVENTS
650 select GENERIC_GPIO
651 select HAVE_SCHED_CLOCK
652 select HAVE_TCM
653 select NO_IOPORT
654 select USE_OF
655 help
656 This enables support for systems based on the Picochip picoXcell
657 family of Femtocell devices. The picoxcell support requires device tree
658 for all boards.
659
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100660config ARCH_PNX4008
661 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000662 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100663 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000664 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100665 help
666 This enables support for Philips PNX4008 mobile platform.
667
Linus Torvalds1da177e2005-04-16 15:20:36 -0700668config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700669 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100670 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500671 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100672 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100673 select CLKDEV_LOOKUP
Russell King234b6ce2011-05-08 14:09:47 +0100674 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700675 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100676 select GENERIC_CLOCKEVENTS
Russell King7ce83012010-12-15 21:48:15 +0000677 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000678 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800679 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800680 select SPARSE_IRQ
Eric Miao4e234cc2011-04-04 15:06:33 +0800681 select AUTO_ZRELADDR
Eric Miao8a97ae22011-05-18 21:30:04 +0800682 select MULTI_IRQ_HANDLER
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +0200683 select ARM_CPU_SUSPEND if PM
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200684 select HAVE_IDE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000685 help
eric miao2c8086a2007-09-11 19:13:17 -0700686 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700687
Russell King788c9702009-04-26 14:21:59 +0100688config ARCH_MSM
689 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500690 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800691 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700692 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800693 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800694 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800695 Support for Qualcomm MSM/QSD based systems. This runs on the
696 apps processor of the MSM/QSD and depends on a shared memory
697 interface to the modem processor which runs the baseband
698 stack and controls some vital subsystems
699 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800700
Magnus Dammc793c1b2010-02-05 11:14:49 +0000701config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900702 bool "Renesas SH-Mobile / R-Mobile"
703 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900704 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900705 select HAVE_MACH_CLKDEV
Paul Mundt6d72ad32010-11-16 16:10:20 +0900706 select GENERIC_CLOCKEVENTS
707 select NO_IOPORT
708 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000709 select MULTI_IRQ_HANDLER
Rafael J. Wysockie3e01092011-07-01 22:13:56 +0200710 select PM_GENERIC_DOMAINS if PM
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400711 select NEED_MACH_MEMORY_H
Magnus Dammc793c1b2010-02-05 11:14:49 +0000712 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900713 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000714
Linus Torvalds1da177e2005-04-16 15:20:36 -0700715config ARCH_RPC
716 bool "RiscPC"
717 select ARCH_ACORN
718 select FIQ
719 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100720 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100721 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000722 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000723 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100724 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000725 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200726 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400727 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700728 help
729 On the Acorn Risc-PC, Linux can support the internal IDE disk and
730 CD-ROM interface, serial and parallel port, and the floppy drive.
731
732config ARCH_SA1100
733 bool "SA1100-based"
Russell King234b6ce2011-05-08 14:09:47 +0100734 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000735 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100736 select ISA
Russell King05944d72006-11-30 20:43:51 +0000737 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500738 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100739 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000740 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100741 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700742 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000743 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100744 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700745 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200746 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400747 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000748 help
749 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700750
751config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900752 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800753 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100754 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700755 select HAVE_CLK
Thomas Abrahame83626f2011-06-14 19:12:26 +0900756 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000757 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900758 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700759 help
760 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
761 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000762 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700763
Ben Dooks63b1f512010-04-30 16:32:26 +0900764 Note, the S3C2416 and the S3C2450 are so close that they even share
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300765 the same SoC ID code. This means that there is no separate machine
Ben Dooks63b1f512010-04-30 16:32:26 +0900766 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
767
Ben Dooksa08ab632008-10-21 14:06:39 +0100768config ARCH_S3C64XX
769 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000770 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900771 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900772 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100773 select HAVE_CLK
Mark Brown67003972011-10-11 08:57:11 +0900774 select HAVE_TCM
Thomas Abraham226e85f2011-06-14 19:12:26 +0900775 select CLKDEV_LOOKUP
Ben Dooks89f0ce72010-01-26 15:49:15 +0900776 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000777 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100778 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900779 select ARCH_REQUIRE_GPIOLIB
780 select SAMSUNG_CLKSRC
781 select SAMSUNG_IRQ_VIC_TIMER
Ben Dooks89f0ce72010-01-26 15:49:15 +0900782 select S3C_GPIO_TRACK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900783 select S3C_DEV_NAND
784 select USB_ARCH_HAS_OHCI
785 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900786 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900787 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100788 help
789 Samsung S3C64XX series based systems
790
Kukjin Kim49b7a492010-09-07 15:47:18 +0900791config ARCH_S5P64X0
792 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900793 select CPU_V6
794 select GENERIC_GPIO
795 select HAVE_CLK
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900796 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900797 select CLKSRC_MMIO
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900798 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900799 select GENERIC_CLOCKEVENTS
800 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900801 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900802 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900803 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900804 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
805 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900806
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200807config ARCH_S5PC100
808 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900809 select GENERIC_GPIO
810 select HAVE_CLK
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900811 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900812 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100813 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900814 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900815 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900816 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900817 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900818 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200819 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900820
Kukjin Kim170f4e42010-02-24 16:40:44 +0900821config ARCH_S5PV210
822 bool "Samsung S5PV210/S5PC110"
823 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900824 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900825 select ARCH_HAS_HOLES_MEMORYMODEL
Kukjin Kim170f4e42010-02-24 16:40:44 +0900826 select GENERIC_GPIO
827 select HAVE_CLK
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900828 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900829 select CLKSRC_MMIO
Kukjin Kim170f4e42010-02-24 16:40:44 +0900830 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900831 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900832 select GENERIC_CLOCKEVENTS
833 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900834 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900835 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900836 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400837 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900838 help
839 Samsung S5PV210/S5PC110 series based systems
840
Kukjin Kim83014572011-11-06 13:54:56 +0900841config ARCH_EXYNOS
842 bool "SAMSUNG EXYNOS"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900843 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900844 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900845 select ARCH_HAS_HOLES_MEMORYMODEL
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900846 select GENERIC_GPIO
847 select HAVE_CLK
Thomas Abrahambadc4f22011-06-14 19:12:27 +0900848 select CLKDEV_LOOKUP
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900849 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900850 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900851 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900852 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900853 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400854 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900855 help
Kukjin Kim83014572011-11-06 13:54:56 +0900856 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900857
Linus Torvalds1da177e2005-04-16 15:20:36 -0700858config ARCH_SHARK
859 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000860 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100861 select ISA
862 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100863 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100864 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000865 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400866 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000867 help
868 Support for the StrongARM based Digital DNARD machine, also known
869 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700870
Hans J. Koch83ef3332010-09-17 18:13:56 +0200871config ARCH_TCC_926
872 bool "Telechips TCC ARM926-based systems"
Russell King234b6ce2011-05-08 14:09:47 +0100873 select CLKSRC_MMIO
Hans J. Koch83ef3332010-09-17 18:13:56 +0200874 select CPU_ARM926T
875 select HAVE_CLK
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100876 select CLKDEV_LOOKUP
Hans J. Koch83ef3332010-09-17 18:13:56 +0200877 select GENERIC_CLOCKEVENTS
878 help
879 Support for Telechips TCC ARM926-based systems.
880
Linus Walleijd98aac72009-04-27 10:21:46 +0100881config ARCH_U300
882 bool "ST-Ericsson U300 Series"
883 depends on MMU
Russell King234b6ce2011-05-08 14:09:47 +0100884 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100885 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000886 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100887 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100888 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200889 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100890 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100891 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100892 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900893 select HAVE_MACH_CLKDEV
Linus Walleijd98aac72009-04-27 10:21:46 +0100894 select GENERIC_GPIO
Linus Walleijcc890cd2011-09-08 09:04:51 +0100895 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400896 select NEED_MACH_MEMORY_H
Linus Walleijd98aac72009-04-27 10:21:46 +0100897 help
898 Support for ST-Ericsson U300 series mobile platforms.
899
Russell Kingccf50e22010-03-15 19:03:06 +0000900config ARCH_U8500
901 bool "ST-Ericsson U8500 Series"
902 select CPU_V7
903 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000904 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100905 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100906 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100907 select ARCH_HAS_CPUFREQ
Russell Kingccf50e22010-03-15 19:03:06 +0000908 help
909 Support for ST-Ericsson's Ux500 architecture
910
911config ARCH_NOMADIK
912 bool "STMicroelectronics Nomadik"
913 select ARM_AMBA
914 select ARM_VIC
915 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100916 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000917 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000918 select ARCH_REQUIRE_GPIOLIB
919 help
920 Support for the Nomadik platform by ST-Ericsson
921
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100922config ARCH_DAVINCI
923 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100924 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700925 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100926 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700927 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100928 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700929 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100930 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530931 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100932 help
933 Support for TI's DaVinci platform.
934
Russell King3b938be2007-05-12 11:25:44 +0100935config ARCH_OMAP
936 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700937 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700938 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100939 select ARCH_HAS_CPUFREQ
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700940 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700941 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000942 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800943 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100944 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200945 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100946
viresh kumarcee37e52010-04-01 12:31:05 +0100947config PLAT_SPEAR
948 bool "ST SPEAr"
949 select ARM_AMBA
950 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100951 select CLKDEV_LOOKUP
Russell Kingd6e15d72011-05-08 17:10:14 +0100952 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100953 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100954 select HAVE_CLK
955 help
956 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
957
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100958config ARCH_VT8500
959 bool "VIA/WonderMedia 85xx"
960 select CPU_ARM926T
961 select GENERIC_GPIO
962 select ARCH_HAS_CPUFREQ
963 select GENERIC_CLOCKEVENTS
964 select ARCH_REQUIRE_GPIOLIB
965 select HAVE_PWM
966 help
967 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +0800968
John Linnb85a3ef2011-06-20 11:47:27 -0600969config ARCH_ZYNQ
970 bool "Xilinx Zynq ARM Cortex A9 Platform"
Binghua Duan02c981c2011-07-08 17:40:12 +0800971 select CPU_V7
Binghua Duan02c981c2011-07-08 17:40:12 +0800972 select GENERIC_CLOCKEVENTS
973 select CLKDEV_LOOKUP
John Linnb85a3ef2011-06-20 11:47:27 -0600974 select ARM_GIC
975 select ARM_AMBA
976 select ICST
Binghua Duan02c981c2011-07-08 17:40:12 +0800977 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +0800978 help
John Linnb85a3ef2011-06-20 11:47:27 -0600979 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -0700980endchoice
981
Russell Kingccf50e22010-03-15 19:03:06 +0000982#
983# This is sorted alphabetically by mach-* pathname. However, plat-*
984# Kconfigs may be included either alphabetically (according to the
985# plat- suffix) or along side the corresponding mach-* source.
986#
Russell King95b8f202010-01-14 11:43:54 +0000987source "arch/arm/mach-at91/Kconfig"
988
989source "arch/arm/mach-bcmring/Kconfig"
990
Linus Torvalds1da177e2005-04-16 15:20:36 -0700991source "arch/arm/mach-clps711x/Kconfig"
992
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300993source "arch/arm/mach-cns3xxx/Kconfig"
994
Russell King95b8f202010-01-14 11:43:54 +0000995source "arch/arm/mach-davinci/Kconfig"
996
997source "arch/arm/mach-dove/Kconfig"
998
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000999source "arch/arm/mach-ep93xx/Kconfig"
1000
Linus Torvalds1da177e2005-04-16 15:20:36 -07001001source "arch/arm/mach-footbridge/Kconfig"
1002
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001003source "arch/arm/mach-gemini/Kconfig"
1004
Russell King95b8f202010-01-14 11:43:54 +00001005source "arch/arm/mach-h720x/Kconfig"
1006
Linus Torvalds1da177e2005-04-16 15:20:36 -07001007source "arch/arm/mach-integrator/Kconfig"
1008
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001009source "arch/arm/mach-iop32x/Kconfig"
1010
1011source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001012
Dan Williams285f5fa2006-12-07 02:59:39 +01001013source "arch/arm/mach-iop13xx/Kconfig"
1014
Linus Torvalds1da177e2005-04-16 15:20:36 -07001015source "arch/arm/mach-ixp4xx/Kconfig"
1016
1017source "arch/arm/mach-ixp2000/Kconfig"
1018
Lennert Buytenhekc4713072006-03-28 21:18:54 +01001019source "arch/arm/mach-ixp23xx/Kconfig"
1020
Russell King95b8f202010-01-14 11:43:54 +00001021source "arch/arm/mach-kirkwood/Kconfig"
1022
1023source "arch/arm/mach-ks8695/Kconfig"
1024
Kevin Wells40805942010-07-27 08:49:04 -07001025source "arch/arm/mach-lpc32xx/Kconfig"
1026
Russell King95b8f202010-01-14 11:43:54 +00001027source "arch/arm/mach-msm/Kconfig"
1028
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001029source "arch/arm/mach-mv78xx0/Kconfig"
1030
Russell King95b8f202010-01-14 11:43:54 +00001031source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001032
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001033source "arch/arm/mach-mxs/Kconfig"
1034
Russell King95b8f202010-01-14 11:43:54 +00001035source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001036
Russell King95b8f202010-01-14 11:43:54 +00001037source "arch/arm/mach-nomadik/Kconfig"
1038source "arch/arm/plat-nomadik/Kconfig"
1039
Tony Lindgrend48af152005-07-10 19:58:17 +01001040source "arch/arm/plat-omap/Kconfig"
1041
1042source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001043
Tony Lindgren1dbae812005-11-10 14:26:51 +00001044source "arch/arm/mach-omap2/Kconfig"
1045
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001046source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001047
Russell King95b8f202010-01-14 11:43:54 +00001048source "arch/arm/mach-pxa/Kconfig"
1049source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001050
Russell King95b8f202010-01-14 11:43:54 +00001051source "arch/arm/mach-mmp/Kconfig"
1052
1053source "arch/arm/mach-realview/Kconfig"
1054
1055source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001056
Ben Dookscf383672009-11-10 00:14:58 +00001057source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001058source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001059source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001060
viresh kumarcee37e52010-04-01 12:31:05 +01001061source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001062
Hans J. Koch83ef3332010-09-17 18:13:56 +02001063source "arch/arm/plat-tcc/Kconfig"
1064
Ben Dooksa21765a2007-02-11 18:31:01 +01001065if ARCH_S3C2410
Linus Torvalds1da177e2005-04-16 15:20:36 -07001066source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001067source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +09001068source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001069source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +01001070source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001071endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001072
Ben Dooksa08ab632008-10-21 14:06:39 +01001073if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001074source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001075endif
1076
Kukjin Kim49b7a492010-09-07 15:47:18 +09001077source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001078
Byungho Min5a7652f2009-06-23 21:39:42 +09001079source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001080
Kukjin Kim170f4e42010-02-24 16:40:44 +09001081source "arch/arm/mach-s5pv210/Kconfig"
1082
Kukjin Kim83014572011-11-06 13:54:56 +09001083source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001084
Russell King882d01f2010-03-02 23:40:15 +00001085source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001086
Erik Gillingc5f80062010-01-21 16:53:02 -08001087source "arch/arm/mach-tegra/Kconfig"
1088
Russell King95b8f202010-01-14 11:43:54 +00001089source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001090
Russell King95b8f202010-01-14 11:43:54 +00001091source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001092
1093source "arch/arm/mach-versatile/Kconfig"
1094
Russell Kingceade892010-02-11 21:44:53 +00001095source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001096source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001097
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001098source "arch/arm/mach-vt8500/Kconfig"
1099
wanzongshun7ec80dd2008-12-03 03:55:38 +01001100source "arch/arm/mach-w90x900/Kconfig"
1101
Linus Torvalds1da177e2005-04-16 15:20:36 -07001102# Definitions to make life easier
1103config ARCH_ACORN
1104 bool
1105
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001106config PLAT_IOP
1107 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001108 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001109 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001110
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001111config PLAT_ORION
1112 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001113 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001114 select GENERIC_IRQ_CHIP
Russell Kingf06a1622010-12-15 21:55:06 +00001115 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001116
Eric Miaobd5ce432009-01-20 12:06:01 +08001117config PLAT_PXA
1118 bool
1119
Russell Kingf4b8b312010-01-14 12:48:06 +00001120config PLAT_VERSATILE
1121 bool
1122
Russell Kinge3887712010-01-14 13:30:16 +00001123config ARM_TIMER_SP804
1124 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001125 select CLKSRC_MMIO
Russell Kinge3887712010-01-14 13:30:16 +00001126
Linus Torvalds1da177e2005-04-16 15:20:36 -07001127source arch/arm/mm/Kconfig
1128
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001129config IWMMXT
1130 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001131 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1132 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001133 help
1134 Enable support for iWMMXt context switching at run time if
1135 running on a CPU that supports it.
1136
Linus Torvalds1da177e2005-04-16 15:20:36 -07001137# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1138config XSCALE_PMU
1139 bool
1140 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1141 default y
1142
Jamie Iles0f4f0672010-02-02 20:23:15 +01001143config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001144 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001145 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001146 default y
1147 bool
1148
eric miao52108642010-12-13 09:42:34 +01001149config MULTI_IRQ_HANDLER
1150 bool
1151 help
1152 Allow each machine to specify it's own IRQ handler at run time.
1153
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001154if !MMU
1155source "arch/arm/Kconfig-nommu"
1156endif
1157
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001158config ARM_ERRATA_411920
1159 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001160 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001161 help
1162 Invalidation of the Instruction Cache operation can
1163 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1164 It does not affect the MPCore. This option enables the ARM Ltd.
1165 recommended workaround.
1166
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001167config ARM_ERRATA_430973
1168 bool "ARM errata: Stale prediction on replaced interworking branch"
1169 depends on CPU_V7
1170 help
1171 This option enables the workaround for the 430973 Cortex-A8
1172 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1173 interworking branch is replaced with another code sequence at the
1174 same virtual address, whether due to self-modifying code or virtual
1175 to physical address re-mapping, Cortex-A8 does not recover from the
1176 stale interworking branch prediction. This results in Cortex-A8
1177 executing the new code sequence in the incorrect ARM or Thumb state.
1178 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1179 and also flushes the branch target cache at every context switch.
1180 Note that setting specific bits in the ACTLR register may not be
1181 available in non-secure mode.
1182
Catalin Marinas855c5512009-04-30 17:06:15 +01001183config ARM_ERRATA_458693
1184 bool "ARM errata: Processor deadlock when a false hazard is created"
1185 depends on CPU_V7
1186 help
1187 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1188 erratum. For very specific sequences of memory operations, it is
1189 possible for a hazard condition intended for a cache line to instead
1190 be incorrectly associated with a different cache line. This false
1191 hazard might then cause a processor deadlock. The workaround enables
1192 the L1 caching of the NEON accesses and disables the PLD instruction
1193 in the ACTLR register. Note that setting specific bits in the ACTLR
1194 register may not be available in non-secure mode.
1195
Catalin Marinas0516e462009-04-30 17:06:20 +01001196config ARM_ERRATA_460075
1197 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1198 depends on CPU_V7
1199 help
1200 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1201 erratum. Any asynchronous access to the L2 cache may encounter a
1202 situation in which recent store transactions to the L2 cache are lost
1203 and overwritten with stale memory contents from external memory. The
1204 workaround disables the write-allocate mode for the L2 cache via the
1205 ACTLR register. Note that setting specific bits in the ACTLR register
1206 may not be available in non-secure mode.
1207
Will Deacon9f050272010-09-14 09:51:43 +01001208config ARM_ERRATA_742230
1209 bool "ARM errata: DMB operation may be faulty"
1210 depends on CPU_V7 && SMP
1211 help
1212 This option enables the workaround for the 742230 Cortex-A9
1213 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1214 between two write operations may not ensure the correct visibility
1215 ordering of the two writes. This workaround sets a specific bit in
1216 the diagnostic register of the Cortex-A9 which causes the DMB
1217 instruction to behave as a DSB, ensuring the correct behaviour of
1218 the two writes.
1219
Will Deacona672e992010-09-14 09:53:02 +01001220config ARM_ERRATA_742231
1221 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1222 depends on CPU_V7 && SMP
1223 help
1224 This option enables the workaround for the 742231 Cortex-A9
1225 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1226 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1227 accessing some data located in the same cache line, may get corrupted
1228 data due to bad handling of the address hazard when the line gets
1229 replaced from one of the CPUs at the same time as another CPU is
1230 accessing it. This workaround sets specific bits in the diagnostic
1231 register of the Cortex-A9 which reduces the linefill issuing
1232 capabilities of the processor.
1233
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001234config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001235 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001236 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001237 help
1238 The PL310 L2 cache controller implements three types of Clean &
1239 Invalidate maintenance operations: by Physical Address
1240 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1241 They are architecturally defined to behave as the execution of a
1242 clean operation followed immediately by an invalidate operation,
1243 both performing to the same memory location. This functionality
1244 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001245 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001246
1247config ARM_ERRATA_720789
1248 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001249 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001250 help
1251 This option enables the workaround for the 720789 Cortex-A9 (prior to
1252 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1253 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1254 As a consequence of this erratum, some TLB entries which should be
1255 invalidated are not, resulting in an incoherency in the system page
1256 tables. The workaround changes the TLB flushing routines to invalidate
1257 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001258
Russell King1f0090a2011-03-16 23:35:25 +00001259config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001260 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001261 depends on CACHE_L2X0
1262 help
1263 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1264 operation (offset 0x7FC). This operation runs in background so that
1265 PL310 can handle normal accesses while it is in progress. Under very
1266 rare circumstances, due to this erratum, write data can be lost when
1267 PL310 treats a cacheable write transaction during a Clean &
1268 Invalidate by Way operation.
1269
Will Deacon475d92f2010-09-28 14:02:02 +01001270config ARM_ERRATA_743622
1271 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1272 depends on CPU_V7
1273 help
1274 This option enables the workaround for the 743622 Cortex-A9
1275 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1276 optimisation in the Cortex-A9 Store Buffer may lead to data
1277 corruption. This workaround sets a specific bit in the diagnostic
1278 register of the Cortex-A9 which disables the Store Buffer
1279 optimisation, preventing the defect from occurring. This has no
1280 visible impact on the overall performance or power consumption of the
1281 processor.
1282
Will Deacon9a27c272011-02-18 16:36:35 +01001283config ARM_ERRATA_751472
1284 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001285 depends on CPU_V7
Will Deacon9a27c272011-02-18 16:36:35 +01001286 help
1287 This option enables the workaround for the 751472 Cortex-A9 (prior
1288 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1289 completion of a following broadcasted operation if the second
1290 operation is received by a CPU before the ICIALLUIS has completed,
1291 potentially leading to corrupted entries in the cache or TLB.
1292
Will Deaconfa0ce402011-11-14 17:24:57 +01001293config PL310_ERRATA_753970
1294 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001295 depends on CACHE_PL310
1296 help
1297 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1298
1299 Under some condition the effect of cache sync operation on
1300 the store buffer still remains when the operation completes.
1301 This means that the store buffer is always asked to drain and
1302 this prevents it from merging any further writes. The workaround
1303 is to replace the normal offset of cache sync operation (0x730)
1304 by another offset targeting an unmapped PL310 register 0x740.
1305 This has the same effect as the cache sync operation: store buffer
1306 drain and waiting for all buffers empty.
1307
Will Deaconfcbdc5f2011-02-28 18:15:16 +01001308config ARM_ERRATA_754322
1309 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1310 depends on CPU_V7
1311 help
1312 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1313 r3p*) erratum. A speculative memory access may cause a page table walk
1314 which starts prior to an ASID switch but completes afterwards. This
1315 can populate the micro-TLB with a stale entry which may be hit with
1316 the new ASID. This workaround places two dsb instructions in the mm
1317 switching code so that no page table walks can cross the ASID switch.
1318
Will Deacon5dab26a2011-03-04 12:38:54 +01001319config ARM_ERRATA_754327
1320 bool "ARM errata: no automatic Store Buffer drain"
1321 depends on CPU_V7 && SMP
1322 help
1323 This option enables the workaround for the 754327 Cortex-A9 (prior to
1324 r2p0) erratum. The Store Buffer does not have any automatic draining
1325 mechanism and therefore a livelock may occur if an external agent
1326 continuously polls a memory location waiting to observe an update.
1327 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1328 written polling loops from denying visibility of updates to memory.
1329
Catalin Marinas145e10e2011-08-15 11:04:41 +01001330config ARM_ERRATA_364296
1331 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1332 depends on CPU_V6 && !SMP
1333 help
1334 This options enables the workaround for the 364296 ARM1136
1335 r0p2 erratum (possible cache data corruption with
1336 hit-under-miss enabled). It sets the undocumented bit 31 in
1337 the auxiliary control register and the FI bit in the control
1338 register, thus disabling hit-under-miss without putting the
1339 processor into full low interrupt latency mode. ARM11MPCore
1340 is not affected.
1341
Will Deaconf630c1b2011-09-15 11:45:15 +01001342config ARM_ERRATA_764369
1343 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1344 depends on CPU_V7 && SMP
1345 help
1346 This option enables the workaround for erratum 764369
1347 affecting Cortex-A9 MPCore with two or more processors (all
1348 current revisions). Under certain timing circumstances, a data
1349 cache line maintenance operation by MVA targeting an Inner
1350 Shareable memory region may fail to proceed up to either the
1351 Point of Coherency or to the Point of Unification of the
1352 system. This workaround adds a DSB instruction before the
1353 relevant cache maintenance functions and sets a specific bit
1354 in the diagnostic control register of the SCU.
1355
Will Deacon11ed0ba2011-11-14 17:24:58 +01001356config PL310_ERRATA_769419
1357 bool "PL310 errata: no automatic Store Buffer drain"
1358 depends on CACHE_L2X0
1359 help
1360 On revisions of the PL310 prior to r3p2, the Store Buffer does
1361 not automatically drain. This can cause normal, non-cacheable
1362 writes to be retained when the memory system is idle, leading
1363 to suboptimal I/O performance for drivers using coherent DMA.
1364 This option adds a write barrier to the cpu_idle loop so that,
1365 on systems with an outer cache, the store buffer is drained
1366 explicitly.
1367
Linus Torvalds1da177e2005-04-16 15:20:36 -07001368endmenu
1369
1370source "arch/arm/common/Kconfig"
1371
Linus Torvalds1da177e2005-04-16 15:20:36 -07001372menu "Bus support"
1373
1374config ARM_AMBA
1375 bool
1376
1377config ISA
1378 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001379 help
1380 Find out whether you have ISA slots on your motherboard. ISA is the
1381 name of a bus system, i.e. the way the CPU talks to the other stuff
1382 inside your box. Other bus systems are PCI, EISA, MicroChannel
1383 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1384 newer boards don't support it. If you have ISA, say Y, otherwise N.
1385
Russell King065909b2006-01-04 15:44:16 +00001386# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001387config ISA_DMA
1388 bool
Russell King065909b2006-01-04 15:44:16 +00001389 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001390
Russell King065909b2006-01-04 15:44:16 +00001391# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001392config ISA_DMA_API
1393 bool
Al Viro5cae8412005-05-04 05:39:22 +01001394
Linus Torvalds1da177e2005-04-16 15:20:36 -07001395config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001396 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001397 help
1398 Find out whether you have a PCI motherboard. PCI is the name of a
1399 bus system, i.e. the way the CPU talks to the other stuff inside
1400 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1401 VESA. If you have PCI, say Y, otherwise N.
1402
Anton Vorontsov52882172010-04-19 13:20:49 +01001403config PCI_DOMAINS
1404 bool
1405 depends on PCI
1406
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001407config PCI_NANOENGINE
1408 bool "BSE nanoEngine PCI support"
1409 depends on SA1100_NANOENGINE
1410 help
1411 Enable PCI on the BSE nanoEngine board.
1412
Matthew Wilcox36e23592007-07-10 10:54:40 -06001413config PCI_SYSCALL
1414 def_bool PCI
1415
Linus Torvalds1da177e2005-04-16 15:20:36 -07001416# Select the host bridge type
1417config PCI_HOST_VIA82C505
1418 bool
1419 depends on PCI && ARCH_SHARK
1420 default y
1421
Mike Rapoporta0113a92007-11-25 08:55:34 +01001422config PCI_HOST_ITE8152
1423 bool
1424 depends on PCI && MACH_ARMCORE
1425 default y
1426 select DMABOUNCE
1427
Linus Torvalds1da177e2005-04-16 15:20:36 -07001428source "drivers/pci/Kconfig"
1429
1430source "drivers/pcmcia/Kconfig"
1431
1432endmenu
1433
1434menu "Kernel Features"
1435
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001436source "kernel/time/Kconfig"
1437
Linus Torvalds1da177e2005-04-16 15:20:36 -07001438config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001439 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001440 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001441 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001442 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001443 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
Kukjin Kim10606aa2011-02-14 15:05:27 +09001444 ARCH_EXYNOS4 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
Arnd Bergmannabc3f122011-11-02 02:46:55 +01001445 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE || ARCH_HIGHBANK || SOC_IMX6Q
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001446 depends on MMU
Jens Axboef6dd9fa52008-06-10 20:48:30 +02001447 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001448 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001449 help
1450 This enables support for systems with more than one CPU. If you have
1451 a system with only one CPU, like most personal computers, say N. If
1452 you have a system with more than one CPU, say Y.
1453
1454 If you say N here, the kernel will run on single and multiprocessor
1455 machines, but will use only one CPU of a multiprocessor machine. If
1456 you say Y here, the kernel will run on many, but not all, single
1457 processor machines. On a single processor machine, the kernel will
1458 run faster if you say N here.
1459
Paul Bolle395cf962011-08-15 02:02:26 +02001460 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001461 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001462 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001463
1464 If you don't know what to do here, say N.
1465
Russell Kingf00ec482010-09-04 10:47:48 +01001466config SMP_ON_UP
1467 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1468 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001469 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001470 default y
1471 help
1472 SMP kernels contain instructions which fail on non-SMP processors.
1473 Enabling this option allows the kernel to modify itself to make
1474 these instructions safe. Disabling it allows about 1K of space
1475 savings.
1476
1477 If you don't know what to do here, say Y.
1478
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001479config ARM_CPU_TOPOLOGY
1480 bool "Support cpu topology definition"
1481 depends on SMP && CPU_V7
1482 default y
1483 help
1484 Support ARM cpu topology definition. The MPIDR register defines
1485 affinity between processors which is then used to describe the cpu
1486 topology of an ARM System.
1487
1488config SCHED_MC
1489 bool "Multi-core scheduler support"
1490 depends on ARM_CPU_TOPOLOGY
1491 help
1492 Multi-core scheduler support improves the CPU scheduler's decision
1493 making when dealing with multi-core CPU chips at a cost of slightly
1494 increased overhead in some places. If unsure say N here.
1495
1496config SCHED_SMT
1497 bool "SMT scheduler support"
1498 depends on ARM_CPU_TOPOLOGY
1499 help
1500 Improves the CPU scheduler's decision making when dealing with
1501 MultiThreading at a cost of slightly increased overhead in some
1502 places. If unsure say N here.
1503
Russell Kinga8cbcd92009-05-16 11:51:14 +01001504config HAVE_ARM_SCU
1505 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001506 help
1507 This option enables support for the ARM system coherency unit
1508
Russell Kingf32f4ce2009-05-16 12:14:21 +01001509config HAVE_ARM_TWD
1510 bool
1511 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001512 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001513 help
1514 This options enables support for the ARM timer and watchdog unit
1515
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001516choice
1517 prompt "Memory split"
1518 default VMSPLIT_3G
1519 help
1520 Select the desired split between kernel and user memory.
1521
1522 If you are not absolutely sure what you are doing, leave this
1523 option alone!
1524
1525 config VMSPLIT_3G
1526 bool "3G/1G user/kernel split"
1527 config VMSPLIT_2G
1528 bool "2G/2G user/kernel split"
1529 config VMSPLIT_1G
1530 bool "1G/3G user/kernel split"
1531endchoice
1532
1533config PAGE_OFFSET
1534 hex
1535 default 0x40000000 if VMSPLIT_1G
1536 default 0x80000000 if VMSPLIT_2G
1537 default 0xC0000000
1538
Linus Torvalds1da177e2005-04-16 15:20:36 -07001539config NR_CPUS
1540 int "Maximum number of CPUs (2-32)"
1541 range 2 32
1542 depends on SMP
1543 default "4"
1544
Russell Kinga054a812005-11-02 22:24:33 +00001545config HOTPLUG_CPU
1546 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1547 depends on SMP && HOTPLUG && EXPERIMENTAL
1548 help
1549 Say Y here to experiment with turning CPUs off and on. CPUs
1550 can be controlled through /sys/devices/system/cpu.
1551
Russell King37ee16a2005-11-08 19:08:05 +00001552config LOCAL_TIMERS
1553 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001554 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001555 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001556 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001557 help
1558 Enable support for local timers on SMP platforms, rather then the
1559 legacy IPI broadcast method. Local timers allows the system
1560 accounting to be spread across the timer interval, preventing a
1561 "thundering herd" at every timer tick.
1562
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001563source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001564
Russell Kingf8065812006-03-02 22:41:59 +00001565config HZ
1566 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001567 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001568 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001569 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001570 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001571 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001572 default 100
1573
Catalin Marinas16c79652009-07-24 12:33:02 +01001574config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001575 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001576 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001577 select AEABI
1578 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001579 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001580 help
1581 By enabling this option, the kernel will be compiled in
1582 Thumb-2 mode. A compiler/assembler that understand the unified
1583 ARM-Thumb syntax is needed.
1584
1585 If unsure, say N.
1586
Dave Martin6f685c52011-03-03 11:41:12 +01001587config THUMB2_AVOID_R_ARM_THM_JUMP11
1588 bool "Work around buggy Thumb-2 short branch relocations in gas"
1589 depends on THUMB2_KERNEL && MODULES
1590 default y
1591 help
1592 Various binutils versions can resolve Thumb-2 branches to
1593 locally-defined, preemptible global symbols as short-range "b.n"
1594 branch instructions.
1595
1596 This is a problem, because there's no guarantee the final
1597 destination of the symbol, or any candidate locations for a
1598 trampoline, are within range of the branch. For this reason, the
1599 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1600 relocation in modules at all, and it makes little sense to add
1601 support.
1602
1603 The symptom is that the kernel fails with an "unsupported
1604 relocation" error when loading some modules.
1605
1606 Until fixed tools are available, passing
1607 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1608 code which hits this problem, at the cost of a bit of extra runtime
1609 stack usage in some cases.
1610
1611 The problem is described in more detail at:
1612 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1613
1614 Only Thumb-2 kernels are affected.
1615
1616 Unless you are sure your tools don't have this problem, say Y.
1617
Catalin Marinas0becb082009-07-24 12:32:53 +01001618config ARM_ASM_UNIFIED
1619 bool
1620
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001621config AEABI
1622 bool "Use the ARM EABI to compile the kernel"
1623 help
1624 This option allows for the kernel to be compiled using the latest
1625 ARM ABI (aka EABI). This is only useful if you are using a user
1626 space environment that is also compiled with EABI.
1627
1628 Since there are major incompatibilities between the legacy ABI and
1629 EABI, especially with regard to structure member alignment, this
1630 option also changes the kernel syscall calling convention to
1631 disambiguate both ABIs and allow for backward compatibility support
1632 (selected with CONFIG_OABI_COMPAT).
1633
1634 To use this you need GCC version 4.0.0 or later.
1635
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001636config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001637 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001638 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001639 default y
1640 help
1641 This option preserves the old syscall interface along with the
1642 new (ARM EABI) one. It also provides a compatibility layer to
1643 intercept syscalls that have structure arguments which layout
1644 in memory differs between the legacy ABI and the new ARM EABI
1645 (only for non "thumb" binaries). This option adds a tiny
1646 overhead to all syscalls and produces a slightly larger kernel.
1647 If you know you'll be using only pure EABI user space then you
1648 can say N here. If this option is not selected and you attempt
1649 to execute a legacy ABI binary then the result will be
1650 UNPREDICTABLE (in fact it can be predicted that it won't work
1651 at all). If in doubt say Y.
1652
Mel Gormaneb335752009-05-13 17:34:48 +01001653config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001654 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001655
Russell King05944d72006-11-30 20:43:51 +00001656config ARCH_SPARSEMEM_ENABLE
1657 bool
1658
Russell King07a2f732008-10-01 21:39:58 +01001659config ARCH_SPARSEMEM_DEFAULT
1660 def_bool ARCH_SPARSEMEM_ENABLE
1661
Russell King05944d72006-11-30 20:43:51 +00001662config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001663 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001664
Will Deacon7b7bf492011-05-19 13:21:14 +01001665config HAVE_ARCH_PFN_VALID
1666 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1667
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001668config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001669 bool "High Memory Support"
1670 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001671 help
1672 The address space of ARM processors is only 4 Gigabytes large
1673 and it has to accommodate user address space, kernel address
1674 space as well as some memory mapped IO. That means that, if you
1675 have a large amount of physical memory and/or IO, not all of the
1676 memory can be "permanently mapped" by the kernel. The physical
1677 memory that is not permanently mapped is called "high memory".
1678
1679 Depending on the selected kernel/user memory split, minimum
1680 vmalloc space and actual amount of RAM, you may not need this
1681 option which should result in a slightly faster kernel.
1682
1683 If unsure, say n.
1684
Russell King65cec8e2009-08-17 20:02:06 +01001685config HIGHPTE
1686 bool "Allocate 2nd-level pagetables from highmem"
1687 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001688
Jamie Iles1b8873a2010-02-02 20:25:44 +01001689config HW_PERF_EVENTS
1690 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001691 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001692 default y
1693 help
1694 Enable hardware performance counter support for perf events. If
1695 disabled, perf events will use software events only.
1696
Dave Hansen3f22ab22005-06-23 00:07:43 -07001697source "mm/Kconfig"
1698
Magnus Dammc1b2d972010-07-05 10:00:11 +01001699config FORCE_MAX_ZONEORDER
1700 int "Maximum zone order" if ARCH_SHMOBILE
1701 range 11 64 if ARCH_SHMOBILE
1702 default "9" if SA1111
1703 default "11"
1704 help
1705 The kernel memory allocator divides physically contiguous memory
1706 blocks into "zones", where each zone is a power of two number of
1707 pages. This option selects the largest power of two that the kernel
1708 keeps in the memory allocator. If you need to allocate very large
1709 blocks of physically contiguous memory, then you may need to
1710 increase this value.
1711
1712 This config option is actually maximum order plus one. For example,
1713 a value of 11 means that the largest free memory block is 2^10 pages.
1714
Linus Torvalds1da177e2005-04-16 15:20:36 -07001715config LEDS
1716 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5b2008-04-22 01:43:27 +01001717 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001718 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001719 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1720 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001721 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001722 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001723 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001724 help
1725 If you say Y here, the LEDs on your machine will be used
1726 to provide useful information about your current system status.
1727
1728 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1729 be able to select which LEDs are active using the options below. If
1730 you are compiling a kernel for the EBSA-110 or the LART however, the
1731 red LED will simply flash regularly to indicate that the system is
1732 still functional. It is safe to say Y here if you have a CATS
1733 system, but the driver will do nothing.
1734
1735config LEDS_TIMER
1736 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001737 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1738 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001739 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001740 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001741 default y if ARCH_EBSA110
1742 help
1743 If you say Y here, one of the system LEDs (the green one on the
1744 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1745 will flash regularly to indicate that the system is still
1746 operational. This is mainly useful to kernel hackers who are
1747 debugging unstable kernels.
1748
1749 The LART uses the same LED for both Timer LED and CPU usage LED
1750 functions. You may choose to use both, but the Timer LED function
1751 will overrule the CPU usage LED.
1752
1753config LEDS_CPU
1754 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001755 !ARCH_OMAP) \
1756 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1757 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001758 depends on LEDS
1759 help
1760 If you say Y here, the red LED will be used to give a good real
1761 time indication of CPU usage, by lighting whenever the idle task
1762 is not currently executing.
1763
1764 The LART uses the same LED for both Timer LED and CPU usage LED
1765 functions. You may choose to use both, but the Timer LED function
1766 will overrule the CPU usage LED.
1767
1768config ALIGNMENT_TRAP
1769 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001770 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001771 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001772 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001773 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001774 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001775 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1776 address divisible by 4. On 32-bit ARM processors, these non-aligned
1777 fetch/store instructions will be emulated in software if you say
1778 here, which has a severe performance impact. This is necessary for
1779 correct operation of some network protocols. With an IP-only
1780 configuration it is safe to say N, otherwise say Y.
1781
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001782config UACCESS_WITH_MEMCPY
1783 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1784 depends on MMU && EXPERIMENTAL
1785 default y if CPU_FEROCEON
1786 help
1787 Implement faster copy_to_user and clear_user methods for CPU
1788 cores where a 8-word STM instruction give significantly higher
1789 memory write throughput than a sequence of individual 32bit stores.
1790
1791 A possible side effect is a slight increase in scheduling latency
1792 between threads sharing the same address space if they invoke
1793 such copy operations with large buffers.
1794
1795 However, if the CPU data cache is using a write-allocate mode,
1796 this option is unlikely to provide any performance gain.
1797
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001798config SECCOMP
1799 bool
1800 prompt "Enable seccomp to safely compute untrusted bytecode"
1801 ---help---
1802 This kernel feature is useful for number crunching applications
1803 that may need to compute untrusted bytecode during their
1804 execution. By using pipes or other transports made available to
1805 the process as file descriptors supporting the read/write
1806 syscalls, it's possible to isolate those applications in
1807 their own address space using seccomp. Once seccomp is
1808 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1809 and the task is only allowed to execute a few safe syscalls
1810 defined by each seccomp mode.
1811
Nicolas Pitrec743f382010-05-24 23:55:42 -04001812config CC_STACKPROTECTOR
1813 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001814 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001815 help
1816 This option turns on the -fstack-protector GCC feature. This
1817 feature puts, at the beginning of functions, a canary value on
1818 the stack just before the return address, and validates
1819 the value just before actually returning. Stack based buffer
1820 overflows (that need to overwrite this return address) now also
1821 overwrite the canary, which gets detected and the attack is then
1822 neutralized via a kernel panic.
1823 This feature requires gcc version 4.2 or above.
1824
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001825config DEPRECATED_PARAM_STRUCT
1826 bool "Provide old way to pass kernel parameters"
1827 help
1828 This was deprecated in 2001 and announced to live on for 5 years.
1829 Some old boot loaders still use this way.
1830
Linus Torvalds1da177e2005-04-16 15:20:36 -07001831endmenu
1832
1833menu "Boot options"
1834
Grant Likely9eb8f672011-04-28 14:27:20 -06001835config USE_OF
1836 bool "Flattened Device Tree support"
1837 select OF
1838 select OF_EARLY_FLATTREE
Grant Likely08a543a2011-07-26 03:19:06 -06001839 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001840 help
1841 Include support for flattened device tree machine descriptions.
1842
Linus Torvalds1da177e2005-04-16 15:20:36 -07001843# Compressed boot loader in ROM. Yes, we really want to ask about
1844# TEXT and BSS so we preserve their values in the config files.
1845config ZBOOT_ROM_TEXT
1846 hex "Compressed ROM boot loader base address"
1847 default "0"
1848 help
1849 The physical address at which the ROM-able zImage is to be
1850 placed in the target. Platforms which normally make use of
1851 ROM-able zImage formats normally set this to a suitable
1852 value in their defconfig file.
1853
1854 If ZBOOT_ROM is not enabled, this has no effect.
1855
1856config ZBOOT_ROM_BSS
1857 hex "Compressed ROM boot loader BSS address"
1858 default "0"
1859 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001860 The base address of an area of read/write memory in the target
1861 for the ROM-able zImage which must be available while the
1862 decompressor is running. It must be large enough to hold the
1863 entire decompressed kernel plus an additional 128 KiB.
1864 Platforms which normally make use of ROM-able zImage formats
1865 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001866
1867 If ZBOOT_ROM is not enabled, this has no effect.
1868
1869config ZBOOT_ROM
1870 bool "Compressed boot loader in ROM/flash"
1871 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1872 help
1873 Say Y here if you intend to execute your compressed kernel image
1874 (zImage) directly from ROM or flash. If unsure, say N.
1875
Simon Horman090ab3f2011-04-26 06:29:53 +01001876choice
1877 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1878 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1879 default ZBOOT_ROM_NONE
1880 help
1881 Include experimental SD/MMC loading code in the ROM-able zImage.
1882 With this enabled it is possible to write the the ROM-able zImage
1883 kernel image to an MMC or SD card and boot the kernel straight
1884 from the reset vector. At reset the processor Mask ROM will load
1885 the first part of the the ROM-able zImage which in turn loads the
1886 rest the kernel image to RAM.
1887
1888config ZBOOT_ROM_NONE
1889 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1890 help
1891 Do not load image from SD or MMC
1892
Simon Hormanf45b1142011-01-11 04:01:08 +01001893config ZBOOT_ROM_MMCIF
1894 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001895 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001896 Load image from MMCIF hardware block.
1897
1898config ZBOOT_ROM_SH_MOBILE_SDHI
1899 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1900 help
1901 Load image from SDHI hardware block
1902
1903endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001904
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001905config ARM_APPENDED_DTB
1906 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1907 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1908 help
1909 With this option, the boot code will look for a device tree binary
1910 (DTB) appended to zImage
1911 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1912
1913 This is meant as a backward compatibility convenience for those
1914 systems with a bootloader that can't be upgraded to accommodate
1915 the documented boot protocol using a device tree.
1916
1917 Beware that there is very little in terms of protection against
1918 this option being confused by leftover garbage in memory that might
1919 look like a DTB header after a reboot if no actual DTB is appended
1920 to zImage. Do not leave this option active in a production kernel
1921 if you don't intend to always append a DTB. Proper passing of the
1922 location into r2 of a bootloader provided DTB is always preferable
1923 to this option.
1924
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001925config ARM_ATAG_DTB_COMPAT
1926 bool "Supplement the appended DTB with traditional ATAG information"
1927 depends on ARM_APPENDED_DTB
1928 help
1929 Some old bootloaders can't be updated to a DTB capable one, yet
1930 they provide ATAGs with memory configuration, the ramdisk address,
1931 the kernel cmdline string, etc. Such information is dynamically
1932 provided by the bootloader and can't always be stored in a static
1933 DTB. To allow a device tree enabled kernel to be used with such
1934 bootloaders, this option allows zImage to extract the information
1935 from the ATAG list and store it at run time into the appended DTB.
1936
Linus Torvalds1da177e2005-04-16 15:20:36 -07001937config CMDLINE
1938 string "Default kernel command string"
1939 default ""
1940 help
1941 On some architectures (EBSA110 and CATS), there is currently no way
1942 for the boot loader to pass arguments to the kernel. For these
1943 architectures, you should supply some command-line options at build
1944 time by entering them here. As a minimum, you should specify the
1945 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1946
Victor Boivie4394c122011-05-04 17:07:55 +01001947choice
1948 prompt "Kernel command line type" if CMDLINE != ""
1949 default CMDLINE_FROM_BOOTLOADER
1950
1951config CMDLINE_FROM_BOOTLOADER
1952 bool "Use bootloader kernel arguments if available"
1953 help
1954 Uses the command-line options passed by the boot loader. If
1955 the boot loader doesn't provide any, the default kernel command
1956 string provided in CMDLINE will be used.
1957
1958config CMDLINE_EXTEND
1959 bool "Extend bootloader kernel arguments"
1960 help
1961 The command-line arguments provided by the boot loader will be
1962 appended to the default kernel command string.
1963
Alexander Holler92d20402010-02-16 19:04:53 +01001964config CMDLINE_FORCE
1965 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001966 help
1967 Always use the default kernel command string, even if the boot
1968 loader passes other arguments to the kernel.
1969 This is useful if you cannot or don't want to change the
1970 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001971endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001972
Linus Torvalds1da177e2005-04-16 15:20:36 -07001973config XIP_KERNEL
1974 bool "Kernel Execute-In-Place from ROM"
1975 depends on !ZBOOT_ROM
1976 help
1977 Execute-In-Place allows the kernel to run from non-volatile storage
1978 directly addressable by the CPU, such as NOR flash. This saves RAM
1979 space since the text section of the kernel is not loaded from flash
1980 to RAM. Read-write sections, such as the data section and stack,
1981 are still copied to RAM. The XIP kernel is not compressed since
1982 it has to run directly from flash, so it will take more space to
1983 store it. The flash address used to link the kernel object files,
1984 and for storing it, is configuration dependent. Therefore, if you
1985 say Y here, you must know the proper physical address where to
1986 store the kernel image depending on your own flash memory usage.
1987
1988 Also note that the make target becomes "make xipImage" rather than
1989 "make zImage" or "make Image". The final kernel binary to put in
1990 ROM memory will be arch/arm/boot/xipImage.
1991
1992 If unsure, say N.
1993
1994config XIP_PHYS_ADDR
1995 hex "XIP Kernel Physical Location"
1996 depends on XIP_KERNEL
1997 default "0x00080000"
1998 help
1999 This is the physical address in your flash memory the kernel will
2000 be linked for and stored to. This address is dependent on your
2001 own flash usage.
2002
Richard Purdiec587e4a2007-02-06 21:29:00 +01002003config KEXEC
2004 bool "Kexec system call (EXPERIMENTAL)"
2005 depends on EXPERIMENTAL
2006 help
2007 kexec is a system call that implements the ability to shutdown your
2008 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002009 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002010 you can start any kernel with it, not just Linux.
2011
2012 It is an ongoing process to be certain the hardware in a machine
2013 is properly shutdown, so do not be surprised if this code does not
2014 initially work for you. It may help to enable device hotplugging
2015 support.
2016
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002017config ATAGS_PROC
2018 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01002019 depends on KEXEC
2020 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002021 help
2022 Should the atags used to boot the kernel be exported in an "atags"
2023 file in procfs. Useful with kexec.
2024
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002025config CRASH_DUMP
2026 bool "Build kdump crash kernel (EXPERIMENTAL)"
2027 depends on EXPERIMENTAL
2028 help
2029 Generate crash dump after being started by kexec. This should
2030 be normally only set in special crash dump kernels which are
2031 loaded in the main kernel with kexec-tools into a specially
2032 reserved region and then later executed after a crash by
2033 kdump/kexec. The crash dump kernel must be compiled to a
2034 memory address not used by the main kernel
2035
2036 For more details see Documentation/kdump/kdump.txt
2037
Eric Miaoe69edc792010-07-05 15:56:50 +02002038config AUTO_ZRELADDR
2039 bool "Auto calculation of the decompressed kernel image address"
2040 depends on !ZBOOT_ROM && !ARCH_U300
2041 help
2042 ZRELADDR is the physical address where the decompressed kernel
2043 image will be placed. If AUTO_ZRELADDR is selected, the address
2044 will be determined at run-time by masking the current IP with
2045 0xf8000000. This assumes the zImage being placed in the first 128MB
2046 from start of memory.
2047
Linus Torvalds1da177e2005-04-16 15:20:36 -07002048endmenu
2049
Russell Kingac9d7ef2008-08-18 17:26:00 +01002050menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002051
Ben Dooks89c52ed2009-07-30 23:23:24 +01002052if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002053
2054source "drivers/cpufreq/Kconfig"
2055
Yong Shen64f102b2010-10-21 21:18:59 +08002056config CPU_FREQ_IMX
2057 tristate "CPUfreq driver for i.MX CPUs"
2058 depends on ARCH_MXC && CPU_FREQ
2059 help
2060 This enables the CPUfreq driver for i.MX CPUs.
2061
Linus Torvalds1da177e2005-04-16 15:20:36 -07002062config CPU_FREQ_SA1100
2063 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002064
2065config CPU_FREQ_SA1110
2066 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002067
2068config CPU_FREQ_INTEGRATOR
2069 tristate "CPUfreq driver for ARM Integrator CPUs"
2070 depends on ARCH_INTEGRATOR && CPU_FREQ
2071 default y
2072 help
2073 This enables the CPUfreq driver for ARM Integrator CPUs.
2074
2075 For details, take a look at <file:Documentation/cpu-freq>.
2076
2077 If in doubt, say Y.
2078
Russell King9e2697f2007-12-14 13:30:14 +00002079config CPU_FREQ_PXA
2080 bool
2081 depends on CPU_FREQ && ARCH_PXA && PXA25x
2082 default y
Arnd Bergmannca7d1562011-10-01 22:03:51 +02002083 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002084 select CPU_FREQ_DEFAULT_GOV_USERSPACE
2085
Ben Dooks9d56c022009-07-30 23:23:25 +01002086config CPU_FREQ_S3C
2087 bool
2088 help
2089 Internal configuration node for common cpufreq on Samsung SoC
2090
2091config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002092 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002093 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
2094 select CPU_FREQ_S3C
2095 help
2096 This enables the CPUfreq driver for the Samsung S3C24XX family
2097 of CPUs.
2098
2099 For details, take a look at <file:Documentation/cpu-freq>.
2100
2101 If in doubt, say N.
2102
2103config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002104 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002105 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2106 help
2107 Compile in support for changing the PLL frequency from the
2108 S3C24XX series CPUfreq driver. The PLL takes time to settle
2109 after a frequency change, so by default it is not enabled.
2110
2111 This also means that the PLL tables for the selected CPU(s) will
2112 be built which may increase the size of the kernel image.
2113
2114config CPU_FREQ_S3C24XX_DEBUG
2115 bool "Debug CPUfreq Samsung driver core"
2116 depends on CPU_FREQ_S3C24XX
2117 help
2118 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2119
2120config CPU_FREQ_S3C24XX_IODEBUG
2121 bool "Debug CPUfreq Samsung driver IO timing"
2122 depends on CPU_FREQ_S3C24XX
2123 help
2124 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2125
Ben Dookse6d197a2009-07-30 23:23:42 +01002126config CPU_FREQ_S3C24XX_DEBUGFS
2127 bool "Export debugfs for CPUFreq"
2128 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2129 help
2130 Export status information via debugfs.
2131
Linus Torvalds1da177e2005-04-16 15:20:36 -07002132endif
2133
Russell Kingac9d7ef2008-08-18 17:26:00 +01002134source "drivers/cpuidle/Kconfig"
2135
2136endmenu
2137
Linus Torvalds1da177e2005-04-16 15:20:36 -07002138menu "Floating point emulation"
2139
2140comment "At least one emulation must be selected"
2141
2142config FPE_NWFPE
2143 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002144 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002145 ---help---
2146 Say Y to include the NWFPE floating point emulator in the kernel.
2147 This is necessary to run most binaries. Linux does not currently
2148 support floating point hardware so you need to say Y here even if
2149 your machine has an FPA or floating point co-processor podule.
2150
2151 You may say N here if you are going to load the Acorn FPEmulator
2152 early in the bootup.
2153
2154config FPE_NWFPE_XP
2155 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002156 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002157 help
2158 Say Y to include 80-bit support in the kernel floating-point
2159 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2160 Note that gcc does not generate 80-bit operations by default,
2161 so in most cases this option only enlarges the size of the
2162 floating point emulator without any good reason.
2163
2164 You almost surely want to say N here.
2165
2166config FPE_FASTFPE
2167 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002168 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002169 ---help---
2170 Say Y here to include the FAST floating point emulator in the kernel.
2171 This is an experimental much faster emulator which now also has full
2172 precision for the mantissa. It does not support any exceptions.
2173 It is very simple, and approximately 3-6 times faster than NWFPE.
2174
2175 It should be sufficient for most programs. It may be not suitable
2176 for scientific calculations, but you have to check this for yourself.
2177 If you do not feel you need a faster FP emulation you should better
2178 choose NWFPE.
2179
2180config VFP
2181 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002182 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002183 help
2184 Say Y to include VFP support code in the kernel. This is needed
2185 if your hardware includes a VFP unit.
2186
2187 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2188 release notes and additional status information.
2189
2190 Say N if your target does not have VFP hardware.
2191
Catalin Marinas25ebee02007-09-25 15:22:24 +01002192config VFPv3
2193 bool
2194 depends on VFP
2195 default y if CPU_V7
2196
Catalin Marinasb5872db2008-01-10 19:16:17 +01002197config NEON
2198 bool "Advanced SIMD (NEON) Extension support"
2199 depends on VFPv3 && CPU_V7
2200 help
2201 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2202 Extension.
2203
Linus Torvalds1da177e2005-04-16 15:20:36 -07002204endmenu
2205
2206menu "Userspace binary formats"
2207
2208source "fs/Kconfig.binfmt"
2209
2210config ARTHUR
2211 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00002212 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002213 help
2214 Say Y here to include the kernel code necessary if you want to run
2215 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2216 experimental; if this sounds frightening, say N and sleep in peace.
2217 You can also say M here to compile this support as a module (which
2218 will be called arthur).
2219
2220endmenu
2221
2222menu "Power management options"
2223
Russell Kingeceab4a2005-11-15 11:31:41 +00002224source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002225
Johannes Bergf4cb5702007-12-08 02:14:00 +01002226config ARCH_SUSPEND_POSSIBLE
Abhilash Kesavan6b6844d2011-10-04 20:30:22 +09002227 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002228 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
2229 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
Johannes Bergf4cb5702007-12-08 02:14:00 +01002230 def_bool y
2231
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002232config ARM_CPU_SUSPEND
2233 def_bool PM_SLEEP
2234
Linus Torvalds1da177e2005-04-16 15:20:36 -07002235endmenu
2236
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002237source "net/Kconfig"
2238
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002239source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002240
2241source "fs/Kconfig"
2242
Linus Torvalds1da177e2005-04-16 15:20:36 -07002243source "arch/arm/Kconfig.debug"
2244
2245source "security/Kconfig"
2246
2247source "crypto/Kconfig"
2248
2249source "lib/Kconfig"