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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
Adrian Bunk2064c942008-04-28 23:44:43 +02006 select HAVE_IDE
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 Shilimkar1fb902632011-09-10 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
223 hex "Physical address of main memory"
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400224 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400225 help
226 Please provide the physical address corresponding to the
227 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000228
Linus Torvalds1da177e2005-04-16 15:20:36 -0700229source "init/Kconfig"
230
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700231source "kernel/Kconfig.freezer"
232
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233menu "System Type"
234
Hyok S. Choi3c427972009-07-24 12:35:00 +0100235config MMU
236 bool "MMU-based Paged Memory Management Support"
237 default y
238 help
239 Select if you want MMU-based virtualised addressing space
240 support by paged memory management. If unsure, say 'Y'.
241
Russell Kingccf50e22010-03-15 19:03:06 +0000242#
243# The "ARM system type" choice list is ordered alphabetically by option
244# text. Please add new entries in the option alphabetic order.
245#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246choice
247 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000248 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700249
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100250config ARCH_INTEGRATOR
251 bool "ARM Ltd. Integrator family"
252 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100253 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100254 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900255 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000256 select ICST
Russell King13edd862010-01-15 21:49:23 +0000257 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000258 select PLAT_VERSATILE
Russell Kingc41b16f2011-01-19 15:32:15 +0000259 select PLAT_VERSATILE_FPGA_IRQ
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400260 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100261 help
262 Support for ARM's Integrator platform.
263
264config ARCH_REALVIEW
265 bool "ARM Ltd. RealView family"
266 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100267 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900268 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000269 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100270 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100271 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000272 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000273 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000274 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100275 select GPIO_PL061 if GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400276 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100277 help
278 This enables support for ARM Ltd RealView boards.
279
280config ARCH_VERSATILE
281 bool "ARM Ltd. Versatile family"
282 select ARM_AMBA
283 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100284 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900285 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000286 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100287 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100288 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000289 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000290 select PLAT_VERSATILE_CLCD
Russell Kingc41b16f2011-01-19 15:32:15 +0000291 select PLAT_VERSATILE_FPGA_IRQ
Russell Kinge3887712010-01-14 13:30:16 +0000292 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100293 help
294 This enables support for ARM Ltd Versatile board.
295
Russell Kingceade892010-02-11 21:44:53 +0000296config ARCH_VEXPRESS
297 bool "ARM Ltd. Versatile Express family"
298 select ARCH_WANT_OPTIONAL_GPIOLIB
299 select ARM_AMBA
300 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100301 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900302 select HAVE_MACH_CLKDEV
Russell Kingceade892010-02-11 21:44:53 +0000303 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000304 select HAVE_CLK
Nick Bowler95c34f82011-01-21 15:51:06 +0100305 select HAVE_PATA_PLATFORM
Russell Kingceade892010-02-11 21:44:53 +0000306 select ICST
307 select PLAT_VERSATILE
Russell King0fb44b92011-01-18 20:13:51 +0000308 select PLAT_VERSATILE_CLCD
Russell Kingceade892010-02-11 21:44:53 +0000309 help
310 This enables support for the ARM Ltd Versatile Express boards.
311
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100312config ARCH_AT91
313 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100314 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700315 select HAVE_CLK
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100316 select CLKDEV_LOOKUP
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100317 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100318 This enables support for systems based on the Atmel AT91RM9200,
319 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100320
Russell Kingccf50e22010-03-15 19:03:06 +0000321config ARCH_BCMRING
322 bool "Broadcom BCMRING"
323 depends on MMU
324 select CPU_V6
325 select ARM_AMBA
Russell King82d63732011-05-12 13:43:39 +0100326 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100327 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000328 select GENERIC_CLOCKEVENTS
329 select ARCH_WANT_OPTIONAL_GPIOLIB
330 help
331 Support for Broadcom's BCMRing platform.
332
Rob Herring220e6cf2011-06-07 10:02:55 -0500333config ARCH_HIGHBANK
334 bool "Calxeda Highbank-based"
335 select ARCH_WANT_OPTIONAL_GPIOLIB
336 select ARM_AMBA
337 select ARM_GIC
338 select ARM_TIMER_SP804
339 select CLKDEV_LOOKUP
340 select CPU_V7
341 select GENERIC_CLOCKEVENTS
342 select HAVE_ARM_SCU
343 select USE_OF
344 help
345 Support for the Calxeda Highbank SoC based boards.
346
Linus Torvalds1da177e2005-04-16 15:20:36 -0700347config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100348 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000349 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000350 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400351 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000352 help
353 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700354
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300355config ARCH_CNS3XXX
356 bool "Cavium Networks CNS3XXX family"
Imre Kaloz00d27112011-07-07 12:19:09 +0200357 select CPU_V6K
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300358 select GENERIC_CLOCKEVENTS
359 select ARM_GIC
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100360 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400361 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300362 help
363 Support for Cavium Networks CNS3XXX platform.
364
Russell King788c9702009-04-26 14:21:59 +0100365config ARCH_GEMINI
366 bool "Cortina Systems Gemini"
367 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100368 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000369 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100370 help
371 Support for the Cortina Systems Gemini family SoCs
372
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200373config ARCH_PRIMA2
374 bool "CSR SiRFSoC PRIMA2 ARM Cortex A9 Platform"
375 select CPU_V7
376 select GENERIC_TIME
377 select NO_IOPORT
378 select GENERIC_CLOCKEVENTS
379 select CLKDEV_LOOKUP
380 select GENERIC_IRQ_CHIP
381 select USE_OF
382 select ZONE_DMA
383 help
384 Support for CSR SiRFSoC ARM Cortex A9 Platform
385
Linus Torvalds1da177e2005-04-16 15:20:36 -0700386config ARCH_EBSA110
387 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000388 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100389 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000390 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000391 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400392 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700393 help
394 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000395 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700396 Ethernet interface, two PCMCIA sockets, two serial ports and a
397 parallel port.
398
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000399config ARCH_EP93XX
400 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000401 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000402 select ARM_AMBA
403 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100404 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700405 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100406 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000407 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400408 select NEED_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000409 help
410 This enables support for the Cirrus EP93xx series of CPUs.
411
Linus Torvalds1da177e2005-04-16 15:20:36 -0700412config ARCH_FOOTBRIDGE
413 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000414 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000416 select GENERIC_CLOCKEVENTS
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400417 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000418 help
419 Support for systems based on the DC21285 companion chip
420 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700421
Russell King788c9702009-04-26 14:21:59 +0100422config ARCH_MXC
423 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100424 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100425 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100426 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100427 select CLKSRC_MMIO
Shawn Guo8b6c44f2011-06-07 13:59:14 +0800428 select GENERIC_IRQ_CHIP
Jan Weitzelc124bef2011-03-17 13:44:30 +0100429 select HAVE_SCHED_CLOCK
Sascha Hauerffa2ea32011-09-20 14:31:24 +0200430 select MULTI_IRQ_HANDLER
Russell King788c9702009-04-26 14:21:59 +0100431 help
432 Support for Freescale MXC/iMX-based family of processors
433
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800434config ARCH_MXS
435 bool "Freescale MXS-based"
436 select GENERIC_CLOCKEVENTS
437 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100438 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100439 select CLKSRC_MMIO
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800440 help
441 Support for Freescale MXS-based family of processors
442
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100443config ARCH_NETX
444 bool "Hilscher NetX based"
Russell King234b6ced2011-05-08 14:09:47 +0100445 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000446 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100447 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100448 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000449 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100450 This enables support for systems based on the Hilscher NetX Soc
451
452config ARCH_H720X
453 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000454 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100455 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000456 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100457 help
458 This enables support for systems based on the Hynix HMS720x
459
Russell King3b938be2007-05-12 11:25:44 +0100460config ARCH_IOP13XX
461 bool "IOP13xx-based"
462 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000463 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100464 select PLAT_IOP
465 select PCI
466 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100467 select VMSPLIT_1G
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400468 select NEED_MACH_MEMORY_H
Russell King3b938be2007-05-12 11:25:44 +0100469 help
470 Support for Intel's IOP13XX (XScale) family of processors.
471
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100472config ARCH_IOP32X
473 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100474 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000475 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100476 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100477 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100478 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000479 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100480 Support for Intel's 80219 and IOP32X (XScale) family of
481 processors.
482
483config ARCH_IOP33X
484 bool "IOP33x-based"
485 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000486 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100487 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100488 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100489 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100490 help
491 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700492
Russell King3b938be2007-05-12 11:25:44 +0100493config ARCH_IXP23XX
494 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100495 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000496 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100497 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000498 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400499 select NEED_MACH_MEMORY_H
Dan Williams285f5fa2006-12-07 02:59:39 +0100500 help
Russell King3b938be2007-05-12 11:25:44 +0100501 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700502
503config ARCH_IXP2000
504 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100505 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000506 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100507 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000508 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400509 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000510 help
511 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700512
Russell King3b938be2007-05-12 11:25:44 +0100513config ARCH_IXP4XX
514 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100515 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100516 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000517 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100518 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100519 select GENERIC_CLOCKEVENTS
Russell King5b0d4952010-12-15 21:23:13 +0000520 select HAVE_SCHED_CLOCK
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100521 select MIGHT_HAVE_PCI
Russell King485bdde2008-10-17 14:00:43 +0100522 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100523 help
Russell King3b938be2007-05-12 11:25:44 +0100524 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100525
Saeed Bisharaedabd382009-08-06 15:12:43 +0300526config ARCH_DOVE
527 bool "Marvell Dove"
Konstantin Porotchkin7b769bb2011-04-07 13:49:41 +0300528 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300529 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300530 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300531 select GENERIC_CLOCKEVENTS
532 select PLAT_ORION
533 help
534 Support for the Marvell Dove SoC 88AP510
535
Saeed Bishara651c74c2008-06-22 22:45:06 +0200536config ARCH_KIRKWOOD
537 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000538 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200539 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700540 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200541 select GENERIC_CLOCKEVENTS
542 select PLAT_ORION
543 help
544 Support for the following Marvell Kirkwood series SoCs:
545 88F6180, 88F6192 and 88F6281.
546
Kevin Wells40805942010-07-27 08:49:04 -0700547config ARCH_LPC32XX
548 bool "NXP LPC32XX"
Russell King234b6ced2011-05-08 14:09:47 +0100549 select CLKSRC_MMIO
Kevin Wells40805942010-07-27 08:49:04 -0700550 select CPU_ARM926T
551 select ARCH_REQUIRE_GPIOLIB
552 select HAVE_IDE
553 select ARM_AMBA
554 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100555 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700556 select GENERIC_TIME
557 select GENERIC_CLOCKEVENTS
558 help
559 Support for the NXP LPC32XX family of processors
560
Russell King788c9702009-04-26 14:21:59 +0100561config ARCH_MV78XX0
562 bool "Marvell MV78xx0"
563 select CPU_FEROCEON
564 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700565 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100566 select GENERIC_CLOCKEVENTS
567 select PLAT_ORION
568 help
569 Support for the following Marvell MV78xx0 series SoCs:
570 MV781x0, MV782x0.
571
572config ARCH_ORION5X
573 bool "Marvell Orion"
574 depends on MMU
575 select CPU_FEROCEON
576 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700577 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100578 select GENERIC_CLOCKEVENTS
579 select PLAT_ORION
580 help
581 Support for the following Marvell Orion 5x series SoCs:
582 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
583 Orion-2 (5281), Orion-1-90 (6183).
584
585config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500586 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100587 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100588 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100589 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100590 select GENERIC_CLOCKEVENTS
Russell King28bb7bc2010-12-15 21:46:48 +0000591 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100592 select TICK_ONESHOT
593 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400594 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100595 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500596 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100597
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100598config ARCH_KS8695
599 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000600 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100601 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000602 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400603 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100604 help
605 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
606 System-on-Chip devices.
607
Russell King788c9702009-04-26 14:21:59 +0100608config ARCH_W90X900
609 bool "Nuvoton W90X900 CPU"
610 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100611 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100612 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100613 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100614 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200615 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100616 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
617 At present, the w90x900 has been renamed nuc900, regarding
618 the ARM series product line, you can login the following
619 link address to know more.
620
621 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
622 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400623
wanzongshuna62e9032009-12-31 15:06:05 +0100624config ARCH_NUC93X
625 bool "Nuvoton NUC93X CPU"
626 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100627 select CLKDEV_LOOKUP
wanzongshuna62e9032009-12-31 15:06:05 +0100628 help
629 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
630 low-power and high performance MPEG-4/JPEG multimedia controller chip.
631
Erik Gillingc5f80062010-01-21 16:53:02 -0800632config ARCH_TEGRA
633 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000634 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100635 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800636 select GENERIC_TIME
637 select GENERIC_CLOCKEVENTS
638 select GENERIC_GPIO
639 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000640 select HAVE_SCHED_CLOCK
Colin Cross7056d422010-04-22 20:30:13 -0700641 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800642 help
643 This enables support for NVIDIA Tegra based systems (Tegra APX,
644 Tegra 6xx and Tegra 2 series).
645
Jamie Ilesaf756552011-07-25 17:36:42 +0100646config ARCH_PICOXCELL
647 bool "Picochip picoXcell"
648 select ARCH_REQUIRE_GPIOLIB
649 select ARM_PATCH_PHYS_VIRT
650 select ARM_VIC
651 select CPU_V6K
652 select DW_APB_TIMER
653 select GENERIC_CLOCKEVENTS
654 select GENERIC_GPIO
655 select HAVE_SCHED_CLOCK
656 select HAVE_TCM
657 select NO_IOPORT
658 select USE_OF
659 help
660 This enables support for systems based on the Picochip picoXcell
661 family of Femtocell devices. The picoxcell support requires device tree
662 for all boards.
663
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100664config ARCH_PNX4008
665 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000666 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100667 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000668 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100669 help
670 This enables support for Philips PNX4008 mobile platform.
671
Linus Torvalds1da177e2005-04-16 15:20:36 -0700672config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700673 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100674 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500675 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100676 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100677 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100678 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700679 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100680 select GENERIC_CLOCKEVENTS
Russell King7ce83012010-12-15 21:48:15 +0000681 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000682 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800683 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800684 select SPARSE_IRQ
Eric Miao4e234cc2011-04-04 15:06:33 +0800685 select AUTO_ZRELADDR
Eric Miao8a97ae22011-05-18 21:30:04 +0800686 select MULTI_IRQ_HANDLER
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000687 help
eric miao2c8086a2007-09-11 19:13:17 -0700688 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700689
Russell King788c9702009-04-26 14:21:59 +0100690config ARCH_MSM
691 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500692 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800693 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700694 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800695 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800696 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800697 Support for Qualcomm MSM/QSD based systems. This runs on the
698 apps processor of the MSM/QSD and depends on a shared memory
699 interface to the modem processor which runs the baseband
700 stack and controls some vital subsystems
701 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800702
Magnus Dammc793c1b2010-02-05 11:14:49 +0000703config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900704 bool "Renesas SH-Mobile / R-Mobile"
705 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900706 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900707 select HAVE_MACH_CLKDEV
Paul Mundt6d72ad32010-11-16 16:10:20 +0900708 select GENERIC_CLOCKEVENTS
709 select NO_IOPORT
710 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000711 select MULTI_IRQ_HANDLER
Rafael J. Wysockie3e01092011-07-01 22:13:56 +0200712 select PM_GENERIC_DOMAINS if PM
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400713 select NEED_MACH_MEMORY_H
Magnus Dammc793c1b2010-02-05 11:14:49 +0000714 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900715 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000716
Linus Torvalds1da177e2005-04-16 15:20:36 -0700717config ARCH_RPC
718 bool "RiscPC"
719 select ARCH_ACORN
720 select FIQ
721 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100722 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100723 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000724 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000725 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100726 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000727 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400728 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700729 help
730 On the Acorn Risc-PC, Linux can support the internal IDE disk and
731 CD-ROM interface, serial and parallel port, and the floppy drive.
732
733config ARCH_SA1100
734 bool "SA1100-based"
Russell King234b6ced2011-05-08 14:09:47 +0100735 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000736 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100737 select ISA
Russell King05944d72006-11-30 20:43:51 +0000738 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500739 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100740 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000741 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100742 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700743 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000744 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100745 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700746 select ARCH_REQUIRE_GPIOLIB
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
Thomas Abraham226e85f2011-06-14 19:12:26 +0900774 select CLKDEV_LOOKUP
Ben Dooks89f0ce72010-01-26 15:49:15 +0900775 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000776 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100777 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900778 select ARCH_REQUIRE_GPIOLIB
779 select SAMSUNG_CLKSRC
780 select SAMSUNG_IRQ_VIC_TIMER
781 select SAMSUNG_IRQ_UART
782 select S3C_GPIO_TRACK
783 select S3C_GPIO_PULL_UPDOWN
784 select S3C_GPIO_CFG_S3C24XX
785 select S3C_GPIO_CFG_S3C64XX
786 select S3C_DEV_NAND
787 select USB_ARCH_HAS_OHCI
788 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900789 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900790 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100791 help
792 Samsung S3C64XX series based systems
793
Kukjin Kim49b7a492010-09-07 15:47:18 +0900794config ARCH_S5P64X0
795 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900796 select CPU_V6
797 select GENERIC_GPIO
798 select HAVE_CLK
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900799 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900800 select CLKSRC_MMIO
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900801 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900802 select GENERIC_CLOCKEVENTS
803 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900804 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900805 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900806 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900807 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
808 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900809
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200810config ARCH_S5PC100
811 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900812 select GENERIC_GPIO
813 select HAVE_CLK
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900814 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900815 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100816 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900817 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900818 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900819 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900820 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900821 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200822 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900823
Kukjin Kim170f4e42010-02-24 16:40:44 +0900824config ARCH_S5PV210
825 bool "Samsung S5PV210/S5PC110"
826 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900827 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900828 select ARCH_HAS_HOLES_MEMORYMODEL
Kukjin Kim170f4e42010-02-24 16:40:44 +0900829 select GENERIC_GPIO
830 select HAVE_CLK
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900831 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900832 select CLKSRC_MMIO
Kukjin Kim170f4e42010-02-24 16:40:44 +0900833 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900834 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900835 select GENERIC_CLOCKEVENTS
836 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900837 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900838 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900839 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400840 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900841 help
842 Samsung S5PV210/S5PC110 series based systems
843
Kukjin Kim10606aa2011-02-14 15:05:27 +0900844config ARCH_EXYNOS4
845 bool "Samsung EXYNOS4"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900846 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900847 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900848 select ARCH_HAS_HOLES_MEMORYMODEL
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900849 select GENERIC_GPIO
850 select HAVE_CLK
Thomas Abrahambadc4f22011-06-14 19:12:27 +0900851 select CLKDEV_LOOKUP
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900852 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900853 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900854 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900855 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900856 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400857 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900858 help
Kukjin Kim10606aa2011-02-14 15:05:27 +0900859 Samsung EXYNOS4 series based systems
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900860
Linus Torvalds1da177e2005-04-16 15:20:36 -0700861config ARCH_SHARK
862 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000863 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100864 select ISA
865 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100866 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100867 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000868 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400869 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000870 help
871 Support for the StrongARM based Digital DNARD machine, also known
872 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700873
Hans J. Koch83ef3332010-09-17 18:13:56 +0200874config ARCH_TCC_926
875 bool "Telechips TCC ARM926-based systems"
Russell King234b6ced2011-05-08 14:09:47 +0100876 select CLKSRC_MMIO
Hans J. Koch83ef3332010-09-17 18:13:56 +0200877 select CPU_ARM926T
878 select HAVE_CLK
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100879 select CLKDEV_LOOKUP
Hans J. Koch83ef3332010-09-17 18:13:56 +0200880 select GENERIC_CLOCKEVENTS
881 help
882 Support for Telechips TCC ARM926-based systems.
883
Linus Walleijd98aac72009-04-27 10:21:46 +0100884config ARCH_U300
885 bool "ST-Ericsson U300 Series"
886 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100887 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100888 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000889 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100890 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100891 select ARM_AMBA
892 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100893 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100894 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900895 select HAVE_MACH_CLKDEV
Linus Walleijd98aac72009-04-27 10:21:46 +0100896 select GENERIC_GPIO
Linus Walleijcc890cd2011-09-08 09:04:51 +0100897 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400898 select NEED_MACH_MEMORY_H
Linus Walleijd98aac72009-04-27 10:21:46 +0100899 help
900 Support for ST-Ericsson U300 series mobile platforms.
901
Russell Kingccf50e22010-03-15 19:03:06 +0000902config ARCH_U8500
903 bool "ST-Ericsson U8500 Series"
904 select CPU_V7
905 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000906 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100907 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100908 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100909 select ARCH_HAS_CPUFREQ
Russell Kingccf50e22010-03-15 19:03:06 +0000910 help
911 Support for ST-Ericsson's Ux500 architecture
912
913config ARCH_NOMADIK
914 bool "STMicroelectronics Nomadik"
915 select ARM_AMBA
916 select ARM_VIC
917 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100918 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000919 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000920 select ARCH_REQUIRE_GPIOLIB
921 help
922 Support for the Nomadik platform by ST-Ericsson
923
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100924config ARCH_DAVINCI
925 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100926 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700927 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100928 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700929 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100930 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700931 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100932 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530933 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100934 help
935 Support for TI's DaVinci platform.
936
Russell King3b938be2007-05-12 11:25:44 +0100937config ARCH_OMAP
938 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700939 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700940 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100941 select ARCH_HAS_CPUFREQ
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700942 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700943 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000944 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800945 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100946 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200947 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100948
viresh kumarcee37e52010-04-01 12:31:05 +0100949config PLAT_SPEAR
950 bool "ST SPEAr"
951 select ARM_AMBA
952 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100953 select CLKDEV_LOOKUP
Russell Kingd6e15d72011-05-08 17:10:14 +0100954 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100955 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100956 select HAVE_CLK
957 help
958 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
959
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100960config ARCH_VT8500
961 bool "VIA/WonderMedia 85xx"
962 select CPU_ARM926T
963 select GENERIC_GPIO
964 select ARCH_HAS_CPUFREQ
965 select GENERIC_CLOCKEVENTS
966 select ARCH_REQUIRE_GPIOLIB
967 select HAVE_PWM
968 help
969 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +0800970
John Linnb85a3ef2011-06-20 11:47:27 -0600971config ARCH_ZYNQ
972 bool "Xilinx Zynq ARM Cortex A9 Platform"
Binghua Duan02c981c2011-07-08 17:40:12 +0800973 select CPU_V7
974 select GENERIC_TIME
Binghua Duan02c981c2011-07-08 17:40:12 +0800975 select GENERIC_CLOCKEVENTS
976 select CLKDEV_LOOKUP
John Linnb85a3ef2011-06-20 11:47:27 -0600977 select ARM_GIC
978 select ARM_AMBA
979 select ICST
Binghua Duan02c981c2011-07-08 17:40:12 +0800980 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +0800981 help
John Linnb85a3ef2011-06-20 11:47:27 -0600982 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -0700983endchoice
984
Russell Kingccf50e22010-03-15 19:03:06 +0000985#
986# This is sorted alphabetically by mach-* pathname. However, plat-*
987# Kconfigs may be included either alphabetically (according to the
988# plat- suffix) or along side the corresponding mach-* source.
989#
Russell King95b8f202010-01-14 11:43:54 +0000990source "arch/arm/mach-at91/Kconfig"
991
992source "arch/arm/mach-bcmring/Kconfig"
993
Linus Torvalds1da177e2005-04-16 15:20:36 -0700994source "arch/arm/mach-clps711x/Kconfig"
995
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300996source "arch/arm/mach-cns3xxx/Kconfig"
997
Russell King95b8f202010-01-14 11:43:54 +0000998source "arch/arm/mach-davinci/Kconfig"
999
1000source "arch/arm/mach-dove/Kconfig"
1001
Lennert Buytenheke7736d42006-03-20 17:10:13 +00001002source "arch/arm/mach-ep93xx/Kconfig"
1003
Linus Torvalds1da177e2005-04-16 15:20:36 -07001004source "arch/arm/mach-footbridge/Kconfig"
1005
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001006source "arch/arm/mach-gemini/Kconfig"
1007
Russell King95b8f202010-01-14 11:43:54 +00001008source "arch/arm/mach-h720x/Kconfig"
1009
Linus Torvalds1da177e2005-04-16 15:20:36 -07001010source "arch/arm/mach-integrator/Kconfig"
1011
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001012source "arch/arm/mach-iop32x/Kconfig"
1013
1014source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001015
Dan Williams285f5fa2006-12-07 02:59:39 +01001016source "arch/arm/mach-iop13xx/Kconfig"
1017
Linus Torvalds1da177e2005-04-16 15:20:36 -07001018source "arch/arm/mach-ixp4xx/Kconfig"
1019
1020source "arch/arm/mach-ixp2000/Kconfig"
1021
Lennert Buytenhekc4713072006-03-28 21:18:54 +01001022source "arch/arm/mach-ixp23xx/Kconfig"
1023
Russell King95b8f202010-01-14 11:43:54 +00001024source "arch/arm/mach-kirkwood/Kconfig"
1025
1026source "arch/arm/mach-ks8695/Kconfig"
1027
Kevin Wells40805942010-07-27 08:49:04 -07001028source "arch/arm/mach-lpc32xx/Kconfig"
1029
Russell King95b8f202010-01-14 11:43:54 +00001030source "arch/arm/mach-msm/Kconfig"
1031
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001032source "arch/arm/mach-mv78xx0/Kconfig"
1033
Russell King95b8f202010-01-14 11:43:54 +00001034source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001035
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001036source "arch/arm/mach-mxs/Kconfig"
1037
Russell King95b8f202010-01-14 11:43:54 +00001038source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001039
Russell King95b8f202010-01-14 11:43:54 +00001040source "arch/arm/mach-nomadik/Kconfig"
1041source "arch/arm/plat-nomadik/Kconfig"
1042
Russell Kingd91a89102010-02-04 18:13:17 +00001043source "arch/arm/mach-nuc93x/Kconfig"
1044
Tony Lindgrend48af152005-07-10 19:58:17 +01001045source "arch/arm/plat-omap/Kconfig"
1046
1047source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001048
Tony Lindgren1dbae812005-11-10 14:26:51 +00001049source "arch/arm/mach-omap2/Kconfig"
1050
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001051source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001052
Russell King95b8f202010-01-14 11:43:54 +00001053source "arch/arm/mach-pxa/Kconfig"
1054source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001055
Russell King95b8f202010-01-14 11:43:54 +00001056source "arch/arm/mach-mmp/Kconfig"
1057
1058source "arch/arm/mach-realview/Kconfig"
1059
1060source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001061
Ben Dookscf383672009-11-10 00:14:58 +00001062source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001063source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001064source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001065
viresh kumarcee37e52010-04-01 12:31:05 +01001066source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001067
Hans J. Koch83ef3332010-09-17 18:13:56 +02001068source "arch/arm/plat-tcc/Kconfig"
1069
Ben Dooksa21765a2007-02-11 18:31:01 +01001070if ARCH_S3C2410
Linus Torvalds1da177e2005-04-16 15:20:36 -07001071source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001072source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +09001073source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001074source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +01001075source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001076endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001077
Ben Dooksa08ab632008-10-21 14:06:39 +01001078if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001079source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001080endif
1081
Kukjin Kim49b7a492010-09-07 15:47:18 +09001082source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001083
Byungho Min5a7652f2009-06-23 21:39:42 +09001084source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001085
Kukjin Kim170f4e42010-02-24 16:40:44 +09001086source "arch/arm/mach-s5pv210/Kconfig"
1087
Kukjin Kim10606aa2011-02-14 15:05:27 +09001088source "arch/arm/mach-exynos4/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001089
Russell King882d01f2010-03-02 23:40:15 +00001090source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001091
Erik Gillingc5f80062010-01-21 16:53:02 -08001092source "arch/arm/mach-tegra/Kconfig"
1093
Russell King95b8f202010-01-14 11:43:54 +00001094source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001095
Russell King95b8f202010-01-14 11:43:54 +00001096source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001097
1098source "arch/arm/mach-versatile/Kconfig"
1099
Russell Kingceade892010-02-11 21:44:53 +00001100source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001101source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001102
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001103source "arch/arm/mach-vt8500/Kconfig"
1104
wanzongshun7ec80dd2008-12-03 03:55:38 +01001105source "arch/arm/mach-w90x900/Kconfig"
1106
Linus Torvalds1da177e2005-04-16 15:20:36 -07001107# Definitions to make life easier
1108config ARCH_ACORN
1109 bool
1110
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001111config PLAT_IOP
1112 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001113 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001114 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001115
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001116config PLAT_ORION
1117 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001118 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001119 select GENERIC_IRQ_CHIP
Russell Kingf06a1622010-12-15 21:55:06 +00001120 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001121
Eric Miaobd5ce432009-01-20 12:06:01 +08001122config PLAT_PXA
1123 bool
1124
Russell Kingf4b8b312010-01-14 12:48:06 +00001125config PLAT_VERSATILE
1126 bool
1127
Russell Kinge3887712010-01-14 13:30:16 +00001128config ARM_TIMER_SP804
1129 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001130 select CLKSRC_MMIO
Russell Kinge3887712010-01-14 13:30:16 +00001131
Linus Torvalds1da177e2005-04-16 15:20:36 -07001132source arch/arm/mm/Kconfig
1133
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001134config IWMMXT
1135 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001136 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1137 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001138 help
1139 Enable support for iWMMXt context switching at run time if
1140 running on a CPU that supports it.
1141
Linus Torvalds1da177e2005-04-16 15:20:36 -07001142# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1143config XSCALE_PMU
1144 bool
1145 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1146 default y
1147
Jamie Iles0f4f0672010-02-02 20:23:15 +01001148config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001149 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001150 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001151 default y
1152 bool
1153
eric miao52108642010-12-13 09:42:34 +01001154config MULTI_IRQ_HANDLER
1155 bool
1156 help
1157 Allow each machine to specify it's own IRQ handler at run time.
1158
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001159if !MMU
1160source "arch/arm/Kconfig-nommu"
1161endif
1162
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001163config ARM_ERRATA_411920
1164 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001165 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001166 help
1167 Invalidation of the Instruction Cache operation can
1168 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1169 It does not affect the MPCore. This option enables the ARM Ltd.
1170 recommended workaround.
1171
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001172config ARM_ERRATA_430973
1173 bool "ARM errata: Stale prediction on replaced interworking branch"
1174 depends on CPU_V7
1175 help
1176 This option enables the workaround for the 430973 Cortex-A8
1177 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1178 interworking branch is replaced with another code sequence at the
1179 same virtual address, whether due to self-modifying code or virtual
1180 to physical address re-mapping, Cortex-A8 does not recover from the
1181 stale interworking branch prediction. This results in Cortex-A8
1182 executing the new code sequence in the incorrect ARM or Thumb state.
1183 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1184 and also flushes the branch target cache at every context switch.
1185 Note that setting specific bits in the ACTLR register may not be
1186 available in non-secure mode.
1187
Catalin Marinas855c5512009-04-30 17:06:15 +01001188config ARM_ERRATA_458693
1189 bool "ARM errata: Processor deadlock when a false hazard is created"
1190 depends on CPU_V7
1191 help
1192 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1193 erratum. For very specific sequences of memory operations, it is
1194 possible for a hazard condition intended for a cache line to instead
1195 be incorrectly associated with a different cache line. This false
1196 hazard might then cause a processor deadlock. The workaround enables
1197 the L1 caching of the NEON accesses and disables the PLD instruction
1198 in the ACTLR register. Note that setting specific bits in the ACTLR
1199 register may not be available in non-secure mode.
1200
Catalin Marinas0516e462009-04-30 17:06:20 +01001201config ARM_ERRATA_460075
1202 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1203 depends on CPU_V7
1204 help
1205 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1206 erratum. Any asynchronous access to the L2 cache may encounter a
1207 situation in which recent store transactions to the L2 cache are lost
1208 and overwritten with stale memory contents from external memory. The
1209 workaround disables the write-allocate mode for the L2 cache via the
1210 ACTLR register. Note that setting specific bits in the ACTLR register
1211 may not be available in non-secure mode.
1212
Will Deacon9f050272010-09-14 09:51:43 +01001213config ARM_ERRATA_742230
1214 bool "ARM errata: DMB operation may be faulty"
1215 depends on CPU_V7 && SMP
1216 help
1217 This option enables the workaround for the 742230 Cortex-A9
1218 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1219 between two write operations may not ensure the correct visibility
1220 ordering of the two writes. This workaround sets a specific bit in
1221 the diagnostic register of the Cortex-A9 which causes the DMB
1222 instruction to behave as a DSB, ensuring the correct behaviour of
1223 the two writes.
1224
Will Deacona672e992010-09-14 09:53:02 +01001225config ARM_ERRATA_742231
1226 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1227 depends on CPU_V7 && SMP
1228 help
1229 This option enables the workaround for the 742231 Cortex-A9
1230 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1231 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1232 accessing some data located in the same cache line, may get corrupted
1233 data due to bad handling of the address hazard when the line gets
1234 replaced from one of the CPUs at the same time as another CPU is
1235 accessing it. This workaround sets specific bits in the diagnostic
1236 register of the Cortex-A9 which reduces the linefill issuing
1237 capabilities of the processor.
1238
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001239config PL310_ERRATA_588369
1240 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001241 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001242 help
1243 The PL310 L2 cache controller implements three types of Clean &
1244 Invalidate maintenance operations: by Physical Address
1245 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1246 They are architecturally defined to behave as the execution of a
1247 clean operation followed immediately by an invalidate operation,
1248 both performing to the same memory location. This functionality
1249 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001250 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001251
1252config ARM_ERRATA_720789
1253 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1254 depends on CPU_V7 && SMP
1255 help
1256 This option enables the workaround for the 720789 Cortex-A9 (prior to
1257 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1258 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1259 As a consequence of this erratum, some TLB entries which should be
1260 invalidated are not, resulting in an incoherency in the system page
1261 tables. The workaround changes the TLB flushing routines to invalidate
1262 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001263
Russell King1f0090a2011-03-16 23:35:25 +00001264config PL310_ERRATA_727915
1265 bool "Background Clean & Invalidate by Way operation can cause data corruption"
1266 depends on CACHE_L2X0
1267 help
1268 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1269 operation (offset 0x7FC). This operation runs in background so that
1270 PL310 can handle normal accesses while it is in progress. Under very
1271 rare circumstances, due to this erratum, write data can be lost when
1272 PL310 treats a cacheable write transaction during a Clean &
1273 Invalidate by Way operation.
1274
Will Deacon475d92f2010-09-28 14:02:02 +01001275config ARM_ERRATA_743622
1276 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1277 depends on CPU_V7
1278 help
1279 This option enables the workaround for the 743622 Cortex-A9
1280 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1281 optimisation in the Cortex-A9 Store Buffer may lead to data
1282 corruption. This workaround sets a specific bit in the diagnostic
1283 register of the Cortex-A9 which disables the Store Buffer
1284 optimisation, preventing the defect from occurring. This has no
1285 visible impact on the overall performance or power consumption of the
1286 processor.
1287
Will Deacon9a27c272011-02-18 16:36:35 +01001288config ARM_ERRATA_751472
1289 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
1290 depends on CPU_V7 && SMP
1291 help
1292 This option enables the workaround for the 751472 Cortex-A9 (prior
1293 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1294 completion of a following broadcasted operation if the second
1295 operation is received by a CPU before the ICIALLUIS has completed,
1296 potentially leading to corrupted entries in the cache or TLB.
1297
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001298config ARM_ERRATA_753970
1299 bool "ARM errata: cache sync operation may be faulty"
1300 depends on CACHE_PL310
1301 help
1302 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1303
1304 Under some condition the effect of cache sync operation on
1305 the store buffer still remains when the operation completes.
1306 This means that the store buffer is always asked to drain and
1307 this prevents it from merging any further writes. The workaround
1308 is to replace the normal offset of cache sync operation (0x730)
1309 by another offset targeting an unmapped PL310 register 0x740.
1310 This has the same effect as the cache sync operation: store buffer
1311 drain and waiting for all buffers empty.
1312
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001313config ARM_ERRATA_754322
1314 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1315 depends on CPU_V7
1316 help
1317 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1318 r3p*) erratum. A speculative memory access may cause a page table walk
1319 which starts prior to an ASID switch but completes afterwards. This
1320 can populate the micro-TLB with a stale entry which may be hit with
1321 the new ASID. This workaround places two dsb instructions in the mm
1322 switching code so that no page table walks can cross the ASID switch.
1323
Will Deacon5dab26af2011-03-04 12:38:54 +01001324config ARM_ERRATA_754327
1325 bool "ARM errata: no automatic Store Buffer drain"
1326 depends on CPU_V7 && SMP
1327 help
1328 This option enables the workaround for the 754327 Cortex-A9 (prior to
1329 r2p0) erratum. The Store Buffer does not have any automatic draining
1330 mechanism and therefore a livelock may occur if an external agent
1331 continuously polls a memory location waiting to observe an update.
1332 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1333 written polling loops from denying visibility of updates to memory.
1334
Catalin Marinas145e10e2011-08-15 11:04:41 +01001335config ARM_ERRATA_364296
1336 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1337 depends on CPU_V6 && !SMP
1338 help
1339 This options enables the workaround for the 364296 ARM1136
1340 r0p2 erratum (possible cache data corruption with
1341 hit-under-miss enabled). It sets the undocumented bit 31 in
1342 the auxiliary control register and the FI bit in the control
1343 register, thus disabling hit-under-miss without putting the
1344 processor into full low interrupt latency mode. ARM11MPCore
1345 is not affected.
1346
Will Deaconf630c1b2011-09-15 11:45:15 +01001347config ARM_ERRATA_764369
1348 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1349 depends on CPU_V7 && SMP
1350 help
1351 This option enables the workaround for erratum 764369
1352 affecting Cortex-A9 MPCore with two or more processors (all
1353 current revisions). Under certain timing circumstances, a data
1354 cache line maintenance operation by MVA targeting an Inner
1355 Shareable memory region may fail to proceed up to either the
1356 Point of Coherency or to the Point of Unification of the
1357 system. This workaround adds a DSB instruction before the
1358 relevant cache maintenance functions and sets a specific bit
1359 in the diagnostic control register of the SCU.
1360
Linus Torvalds1da177e2005-04-16 15:20:36 -07001361endmenu
1362
1363source "arch/arm/common/Kconfig"
1364
Linus Torvalds1da177e2005-04-16 15:20:36 -07001365menu "Bus support"
1366
1367config ARM_AMBA
1368 bool
1369
1370config ISA
1371 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001372 help
1373 Find out whether you have ISA slots on your motherboard. ISA is the
1374 name of a bus system, i.e. the way the CPU talks to the other stuff
1375 inside your box. Other bus systems are PCI, EISA, MicroChannel
1376 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1377 newer boards don't support it. If you have ISA, say Y, otherwise N.
1378
Russell King065909b2006-01-04 15:44:16 +00001379# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001380config ISA_DMA
1381 bool
Russell King065909b2006-01-04 15:44:16 +00001382 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001383
Russell King065909b2006-01-04 15:44:16 +00001384# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001385config ISA_DMA_API
1386 bool
Al Viro5cae8412005-05-04 05:39:22 +01001387
Linus Torvalds1da177e2005-04-16 15:20:36 -07001388config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001389 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001390 help
1391 Find out whether you have a PCI motherboard. PCI is the name of a
1392 bus system, i.e. the way the CPU talks to the other stuff inside
1393 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1394 VESA. If you have PCI, say Y, otherwise N.
1395
Anton Vorontsov52882172010-04-19 13:20:49 +01001396config PCI_DOMAINS
1397 bool
1398 depends on PCI
1399
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001400config PCI_NANOENGINE
1401 bool "BSE nanoEngine PCI support"
1402 depends on SA1100_NANOENGINE
1403 help
1404 Enable PCI on the BSE nanoEngine board.
1405
Matthew Wilcox36e23592007-07-10 10:54:40 -06001406config PCI_SYSCALL
1407 def_bool PCI
1408
Linus Torvalds1da177e2005-04-16 15:20:36 -07001409# Select the host bridge type
1410config PCI_HOST_VIA82C505
1411 bool
1412 depends on PCI && ARCH_SHARK
1413 default y
1414
Mike Rapoporta0113a92007-11-25 08:55:34 +01001415config PCI_HOST_ITE8152
1416 bool
1417 depends on PCI && MACH_ARMCORE
1418 default y
1419 select DMABOUNCE
1420
Linus Torvalds1da177e2005-04-16 15:20:36 -07001421source "drivers/pci/Kconfig"
1422
1423source "drivers/pcmcia/Kconfig"
1424
1425endmenu
1426
1427menu "Kernel Features"
1428
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001429source "kernel/time/Kconfig"
1430
Linus Torvalds1da177e2005-04-16 15:20:36 -07001431config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001432 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001433 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001434 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001435 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001436 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
Kukjin Kim10606aa2011-02-14 15:05:27 +09001437 ARCH_EXYNOS4 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
Arnd Bergmannabc3f122011-11-02 02:46:55 +01001438 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE || ARCH_HIGHBANK || SOC_IMX6Q
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001439 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001440 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001441 help
1442 This enables support for systems with more than one CPU. If you have
1443 a system with only one CPU, like most personal computers, say N. If
1444 you have a system with more than one CPU, say Y.
1445
1446 If you say N here, the kernel will run on single and multiprocessor
1447 machines, but will use only one CPU of a multiprocessor machine. If
1448 you say Y here, the kernel will run on many, but not all, single
1449 processor machines. On a single processor machine, the kernel will
1450 run faster if you say N here.
1451
Adrian Bunk03502fa2008-02-03 15:50:21 +02001452 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001453 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001454 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001455
1456 If you don't know what to do here, say N.
1457
Russell Kingf00ec482010-09-04 10:47:48 +01001458config SMP_ON_UP
1459 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1460 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001461 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001462 default y
1463 help
1464 SMP kernels contain instructions which fail on non-SMP processors.
1465 Enabling this option allows the kernel to modify itself to make
1466 these instructions safe. Disabling it allows about 1K of space
1467 savings.
1468
1469 If you don't know what to do here, say Y.
1470
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001471config ARM_CPU_TOPOLOGY
1472 bool "Support cpu topology definition"
1473 depends on SMP && CPU_V7
1474 default y
1475 help
1476 Support ARM cpu topology definition. The MPIDR register defines
1477 affinity between processors which is then used to describe the cpu
1478 topology of an ARM System.
1479
1480config SCHED_MC
1481 bool "Multi-core scheduler support"
1482 depends on ARM_CPU_TOPOLOGY
1483 help
1484 Multi-core scheduler support improves the CPU scheduler's decision
1485 making when dealing with multi-core CPU chips at a cost of slightly
1486 increased overhead in some places. If unsure say N here.
1487
1488config SCHED_SMT
1489 bool "SMT scheduler support"
1490 depends on ARM_CPU_TOPOLOGY
1491 help
1492 Improves the CPU scheduler's decision making when dealing with
1493 MultiThreading at a cost of slightly increased overhead in some
1494 places. If unsure say N here.
1495
Russell Kinga8cbcd92009-05-16 11:51:14 +01001496config HAVE_ARM_SCU
1497 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001498 help
1499 This option enables support for the ARM system coherency unit
1500
Russell Kingf32f4ce2009-05-16 12:14:21 +01001501config HAVE_ARM_TWD
1502 bool
1503 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001504 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001505 help
1506 This options enables support for the ARM timer and watchdog unit
1507
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001508choice
1509 prompt "Memory split"
1510 default VMSPLIT_3G
1511 help
1512 Select the desired split between kernel and user memory.
1513
1514 If you are not absolutely sure what you are doing, leave this
1515 option alone!
1516
1517 config VMSPLIT_3G
1518 bool "3G/1G user/kernel split"
1519 config VMSPLIT_2G
1520 bool "2G/2G user/kernel split"
1521 config VMSPLIT_1G
1522 bool "1G/3G user/kernel split"
1523endchoice
1524
1525config PAGE_OFFSET
1526 hex
1527 default 0x40000000 if VMSPLIT_1G
1528 default 0x80000000 if VMSPLIT_2G
1529 default 0xC0000000
1530
Linus Torvalds1da177e2005-04-16 15:20:36 -07001531config NR_CPUS
1532 int "Maximum number of CPUs (2-32)"
1533 range 2 32
1534 depends on SMP
1535 default "4"
1536
Russell Kinga054a812005-11-02 22:24:33 +00001537config HOTPLUG_CPU
1538 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1539 depends on SMP && HOTPLUG && EXPERIMENTAL
1540 help
1541 Say Y here to experiment with turning CPUs off and on. CPUs
1542 can be controlled through /sys/devices/system/cpu.
1543
Russell King37ee16a2005-11-08 19:08:05 +00001544config LOCAL_TIMERS
1545 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001546 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001547 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001548 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001549 help
1550 Enable support for local timers on SMP platforms, rather then the
1551 legacy IPI broadcast method. Local timers allows the system
1552 accounting to be spread across the timer interval, preventing a
1553 "thundering herd" at every timer tick.
1554
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001555source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001556
Russell Kingf8065812006-03-02 22:41:59 +00001557config HZ
1558 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001559 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001560 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001561 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001562 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001563 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001564 default 100
1565
Catalin Marinas16c79652009-07-24 12:33:02 +01001566config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001567 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001568 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001569 select AEABI
1570 select ARM_ASM_UNIFIED
1571 help
1572 By enabling this option, the kernel will be compiled in
1573 Thumb-2 mode. A compiler/assembler that understand the unified
1574 ARM-Thumb syntax is needed.
1575
1576 If unsure, say N.
1577
Dave Martin6f685c52011-03-03 11:41:12 +01001578config THUMB2_AVOID_R_ARM_THM_JUMP11
1579 bool "Work around buggy Thumb-2 short branch relocations in gas"
1580 depends on THUMB2_KERNEL && MODULES
1581 default y
1582 help
1583 Various binutils versions can resolve Thumb-2 branches to
1584 locally-defined, preemptible global symbols as short-range "b.n"
1585 branch instructions.
1586
1587 This is a problem, because there's no guarantee the final
1588 destination of the symbol, or any candidate locations for a
1589 trampoline, are within range of the branch. For this reason, the
1590 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1591 relocation in modules at all, and it makes little sense to add
1592 support.
1593
1594 The symptom is that the kernel fails with an "unsupported
1595 relocation" error when loading some modules.
1596
1597 Until fixed tools are available, passing
1598 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1599 code which hits this problem, at the cost of a bit of extra runtime
1600 stack usage in some cases.
1601
1602 The problem is described in more detail at:
1603 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1604
1605 Only Thumb-2 kernels are affected.
1606
1607 Unless you are sure your tools don't have this problem, say Y.
1608
Catalin Marinas0becb082009-07-24 12:32:53 +01001609config ARM_ASM_UNIFIED
1610 bool
1611
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001612config AEABI
1613 bool "Use the ARM EABI to compile the kernel"
1614 help
1615 This option allows for the kernel to be compiled using the latest
1616 ARM ABI (aka EABI). This is only useful if you are using a user
1617 space environment that is also compiled with EABI.
1618
1619 Since there are major incompatibilities between the legacy ABI and
1620 EABI, especially with regard to structure member alignment, this
1621 option also changes the kernel syscall calling convention to
1622 disambiguate both ABIs and allow for backward compatibility support
1623 (selected with CONFIG_OABI_COMPAT).
1624
1625 To use this you need GCC version 4.0.0 or later.
1626
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001627config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001628 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001629 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001630 default y
1631 help
1632 This option preserves the old syscall interface along with the
1633 new (ARM EABI) one. It also provides a compatibility layer to
1634 intercept syscalls that have structure arguments which layout
1635 in memory differs between the legacy ABI and the new ARM EABI
1636 (only for non "thumb" binaries). This option adds a tiny
1637 overhead to all syscalls and produces a slightly larger kernel.
1638 If you know you'll be using only pure EABI user space then you
1639 can say N here. If this option is not selected and you attempt
1640 to execute a legacy ABI binary then the result will be
1641 UNPREDICTABLE (in fact it can be predicted that it won't work
1642 at all). If in doubt say Y.
1643
Mel Gormaneb335752009-05-13 17:34:48 +01001644config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001645 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001646
Russell King05944d72006-11-30 20:43:51 +00001647config ARCH_SPARSEMEM_ENABLE
1648 bool
1649
Russell King07a2f732008-10-01 21:39:58 +01001650config ARCH_SPARSEMEM_DEFAULT
1651 def_bool ARCH_SPARSEMEM_ENABLE
1652
Russell King05944d72006-11-30 20:43:51 +00001653config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001654 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001655
Will Deacon7b7bf492011-05-19 13:21:14 +01001656config HAVE_ARCH_PFN_VALID
1657 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1658
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001659config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001660 bool "High Memory Support"
1661 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001662 help
1663 The address space of ARM processors is only 4 Gigabytes large
1664 and it has to accommodate user address space, kernel address
1665 space as well as some memory mapped IO. That means that, if you
1666 have a large amount of physical memory and/or IO, not all of the
1667 memory can be "permanently mapped" by the kernel. The physical
1668 memory that is not permanently mapped is called "high memory".
1669
1670 Depending on the selected kernel/user memory split, minimum
1671 vmalloc space and actual amount of RAM, you may not need this
1672 option which should result in a slightly faster kernel.
1673
1674 If unsure, say n.
1675
Russell King65cec8e2009-08-17 20:02:06 +01001676config HIGHPTE
1677 bool "Allocate 2nd-level pagetables from highmem"
1678 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001679
Jamie Iles1b8873a2010-02-02 20:25:44 +01001680config HW_PERF_EVENTS
1681 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001682 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001683 default y
1684 help
1685 Enable hardware performance counter support for perf events. If
1686 disabled, perf events will use software events only.
1687
Dave Hansen3f22ab22005-06-23 00:07:43 -07001688source "mm/Kconfig"
1689
Magnus Dammc1b2d972010-07-05 10:00:11 +01001690config FORCE_MAX_ZONEORDER
1691 int "Maximum zone order" if ARCH_SHMOBILE
1692 range 11 64 if ARCH_SHMOBILE
1693 default "9" if SA1111
1694 default "11"
1695 help
1696 The kernel memory allocator divides physically contiguous memory
1697 blocks into "zones", where each zone is a power of two number of
1698 pages. This option selects the largest power of two that the kernel
1699 keeps in the memory allocator. If you need to allocate very large
1700 blocks of physically contiguous memory, then you may need to
1701 increase this value.
1702
1703 This config option is actually maximum order plus one. For example,
1704 a value of 11 means that the largest free memory block is 2^10 pages.
1705
Linus Torvalds1da177e2005-04-16 15:20:36 -07001706config LEDS
1707 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001708 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001709 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001710 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1711 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001712 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001713 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001714 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001715 help
1716 If you say Y here, the LEDs on your machine will be used
1717 to provide useful information about your current system status.
1718
1719 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1720 be able to select which LEDs are active using the options below. If
1721 you are compiling a kernel for the EBSA-110 or the LART however, the
1722 red LED will simply flash regularly to indicate that the system is
1723 still functional. It is safe to say Y here if you have a CATS
1724 system, but the driver will do nothing.
1725
1726config LEDS_TIMER
1727 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001728 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1729 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001730 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001731 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001732 default y if ARCH_EBSA110
1733 help
1734 If you say Y here, one of the system LEDs (the green one on the
1735 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1736 will flash regularly to indicate that the system is still
1737 operational. This is mainly useful to kernel hackers who are
1738 debugging unstable kernels.
1739
1740 The LART uses the same LED for both Timer LED and CPU usage LED
1741 functions. You may choose to use both, but the Timer LED function
1742 will overrule the CPU usage LED.
1743
1744config LEDS_CPU
1745 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001746 !ARCH_OMAP) \
1747 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1748 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001749 depends on LEDS
1750 help
1751 If you say Y here, the red LED will be used to give a good real
1752 time indication of CPU usage, by lighting whenever the idle task
1753 is not currently executing.
1754
1755 The LART uses the same LED for both Timer LED and CPU usage LED
1756 functions. You may choose to use both, but the Timer LED function
1757 will overrule the CPU usage LED.
1758
1759config ALIGNMENT_TRAP
1760 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001761 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001762 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001763 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001764 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001765 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001766 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1767 address divisible by 4. On 32-bit ARM processors, these non-aligned
1768 fetch/store instructions will be emulated in software if you say
1769 here, which has a severe performance impact. This is necessary for
1770 correct operation of some network protocols. With an IP-only
1771 configuration it is safe to say N, otherwise say Y.
1772
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001773config UACCESS_WITH_MEMCPY
1774 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1775 depends on MMU && EXPERIMENTAL
1776 default y if CPU_FEROCEON
1777 help
1778 Implement faster copy_to_user and clear_user methods for CPU
1779 cores where a 8-word STM instruction give significantly higher
1780 memory write throughput than a sequence of individual 32bit stores.
1781
1782 A possible side effect is a slight increase in scheduling latency
1783 between threads sharing the same address space if they invoke
1784 such copy operations with large buffers.
1785
1786 However, if the CPU data cache is using a write-allocate mode,
1787 this option is unlikely to provide any performance gain.
1788
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001789config SECCOMP
1790 bool
1791 prompt "Enable seccomp to safely compute untrusted bytecode"
1792 ---help---
1793 This kernel feature is useful for number crunching applications
1794 that may need to compute untrusted bytecode during their
1795 execution. By using pipes or other transports made available to
1796 the process as file descriptors supporting the read/write
1797 syscalls, it's possible to isolate those applications in
1798 their own address space using seccomp. Once seccomp is
1799 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1800 and the task is only allowed to execute a few safe syscalls
1801 defined by each seccomp mode.
1802
Nicolas Pitrec743f382010-05-24 23:55:42 -04001803config CC_STACKPROTECTOR
1804 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001805 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001806 help
1807 This option turns on the -fstack-protector GCC feature. This
1808 feature puts, at the beginning of functions, a canary value on
1809 the stack just before the return address, and validates
1810 the value just before actually returning. Stack based buffer
1811 overflows (that need to overwrite this return address) now also
1812 overwrite the canary, which gets detected and the attack is then
1813 neutralized via a kernel panic.
1814 This feature requires gcc version 4.2 or above.
1815
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001816config DEPRECATED_PARAM_STRUCT
1817 bool "Provide old way to pass kernel parameters"
1818 help
1819 This was deprecated in 2001 and announced to live on for 5 years.
1820 Some old boot loaders still use this way.
1821
Linus Torvalds1da177e2005-04-16 15:20:36 -07001822endmenu
1823
1824menu "Boot options"
1825
Grant Likely9eb8f672011-04-28 14:27:20 -06001826config USE_OF
1827 bool "Flattened Device Tree support"
1828 select OF
1829 select OF_EARLY_FLATTREE
Grant Likely08a543a2011-07-26 03:19:06 -06001830 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001831 help
1832 Include support for flattened device tree machine descriptions.
1833
Linus Torvalds1da177e2005-04-16 15:20:36 -07001834# Compressed boot loader in ROM. Yes, we really want to ask about
1835# TEXT and BSS so we preserve their values in the config files.
1836config ZBOOT_ROM_TEXT
1837 hex "Compressed ROM boot loader base address"
1838 default "0"
1839 help
1840 The physical address at which the ROM-able zImage is to be
1841 placed in the target. Platforms which normally make use of
1842 ROM-able zImage formats normally set this to a suitable
1843 value in their defconfig file.
1844
1845 If ZBOOT_ROM is not enabled, this has no effect.
1846
1847config ZBOOT_ROM_BSS
1848 hex "Compressed ROM boot loader BSS address"
1849 default "0"
1850 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001851 The base address of an area of read/write memory in the target
1852 for the ROM-able zImage which must be available while the
1853 decompressor is running. It must be large enough to hold the
1854 entire decompressed kernel plus an additional 128 KiB.
1855 Platforms which normally make use of ROM-able zImage formats
1856 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001857
1858 If ZBOOT_ROM is not enabled, this has no effect.
1859
1860config ZBOOT_ROM
1861 bool "Compressed boot loader in ROM/flash"
1862 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1863 help
1864 Say Y here if you intend to execute your compressed kernel image
1865 (zImage) directly from ROM or flash. If unsure, say N.
1866
Simon Horman090ab3f2011-04-26 06:29:53 +01001867choice
1868 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1869 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1870 default ZBOOT_ROM_NONE
1871 help
1872 Include experimental SD/MMC loading code in the ROM-able zImage.
1873 With this enabled it is possible to write the the ROM-able zImage
1874 kernel image to an MMC or SD card and boot the kernel straight
1875 from the reset vector. At reset the processor Mask ROM will load
1876 the first part of the the ROM-able zImage which in turn loads the
1877 rest the kernel image to RAM.
1878
1879config ZBOOT_ROM_NONE
1880 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1881 help
1882 Do not load image from SD or MMC
1883
Simon Hormanf45b1142011-01-11 04:01:08 +01001884config ZBOOT_ROM_MMCIF
1885 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001886 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001887 Load image from MMCIF hardware block.
1888
1889config ZBOOT_ROM_SH_MOBILE_SDHI
1890 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1891 help
1892 Load image from SDHI hardware block
1893
1894endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001895
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001896config ARM_APPENDED_DTB
1897 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1898 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1899 help
1900 With this option, the boot code will look for a device tree binary
1901 (DTB) appended to zImage
1902 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1903
1904 This is meant as a backward compatibility convenience for those
1905 systems with a bootloader that can't be upgraded to accommodate
1906 the documented boot protocol using a device tree.
1907
1908 Beware that there is very little in terms of protection against
1909 this option being confused by leftover garbage in memory that might
1910 look like a DTB header after a reboot if no actual DTB is appended
1911 to zImage. Do not leave this option active in a production kernel
1912 if you don't intend to always append a DTB. Proper passing of the
1913 location into r2 of a bootloader provided DTB is always preferable
1914 to this option.
1915
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001916config ARM_ATAG_DTB_COMPAT
1917 bool "Supplement the appended DTB with traditional ATAG information"
1918 depends on ARM_APPENDED_DTB
1919 help
1920 Some old bootloaders can't be updated to a DTB capable one, yet
1921 they provide ATAGs with memory configuration, the ramdisk address,
1922 the kernel cmdline string, etc. Such information is dynamically
1923 provided by the bootloader and can't always be stored in a static
1924 DTB. To allow a device tree enabled kernel to be used with such
1925 bootloaders, this option allows zImage to extract the information
1926 from the ATAG list and store it at run time into the appended DTB.
1927
Linus Torvalds1da177e2005-04-16 15:20:36 -07001928config CMDLINE
1929 string "Default kernel command string"
1930 default ""
1931 help
1932 On some architectures (EBSA110 and CATS), there is currently no way
1933 for the boot loader to pass arguments to the kernel. For these
1934 architectures, you should supply some command-line options at build
1935 time by entering them here. As a minimum, you should specify the
1936 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1937
Victor Boivie4394c122011-05-04 17:07:55 +01001938choice
1939 prompt "Kernel command line type" if CMDLINE != ""
1940 default CMDLINE_FROM_BOOTLOADER
1941
1942config CMDLINE_FROM_BOOTLOADER
1943 bool "Use bootloader kernel arguments if available"
1944 help
1945 Uses the command-line options passed by the boot loader. If
1946 the boot loader doesn't provide any, the default kernel command
1947 string provided in CMDLINE will be used.
1948
1949config CMDLINE_EXTEND
1950 bool "Extend bootloader kernel arguments"
1951 help
1952 The command-line arguments provided by the boot loader will be
1953 appended to the default kernel command string.
1954
Alexander Holler92d20402010-02-16 19:04:53 +01001955config CMDLINE_FORCE
1956 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001957 help
1958 Always use the default kernel command string, even if the boot
1959 loader passes other arguments to the kernel.
1960 This is useful if you cannot or don't want to change the
1961 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001962endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001963
Linus Torvalds1da177e2005-04-16 15:20:36 -07001964config XIP_KERNEL
1965 bool "Kernel Execute-In-Place from ROM"
1966 depends on !ZBOOT_ROM
1967 help
1968 Execute-In-Place allows the kernel to run from non-volatile storage
1969 directly addressable by the CPU, such as NOR flash. This saves RAM
1970 space since the text section of the kernel is not loaded from flash
1971 to RAM. Read-write sections, such as the data section and stack,
1972 are still copied to RAM. The XIP kernel is not compressed since
1973 it has to run directly from flash, so it will take more space to
1974 store it. The flash address used to link the kernel object files,
1975 and for storing it, is configuration dependent. Therefore, if you
1976 say Y here, you must know the proper physical address where to
1977 store the kernel image depending on your own flash memory usage.
1978
1979 Also note that the make target becomes "make xipImage" rather than
1980 "make zImage" or "make Image". The final kernel binary to put in
1981 ROM memory will be arch/arm/boot/xipImage.
1982
1983 If unsure, say N.
1984
1985config XIP_PHYS_ADDR
1986 hex "XIP Kernel Physical Location"
1987 depends on XIP_KERNEL
1988 default "0x00080000"
1989 help
1990 This is the physical address in your flash memory the kernel will
1991 be linked for and stored to. This address is dependent on your
1992 own flash usage.
1993
Richard Purdiec587e4a2007-02-06 21:29:00 +01001994config KEXEC
1995 bool "Kexec system call (EXPERIMENTAL)"
1996 depends on EXPERIMENTAL
1997 help
1998 kexec is a system call that implements the ability to shutdown your
1999 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002000 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002001 you can start any kernel with it, not just Linux.
2002
2003 It is an ongoing process to be certain the hardware in a machine
2004 is properly shutdown, so do not be surprised if this code does not
2005 initially work for you. It may help to enable device hotplugging
2006 support.
2007
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002008config ATAGS_PROC
2009 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01002010 depends on KEXEC
2011 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002012 help
2013 Should the atags used to boot the kernel be exported in an "atags"
2014 file in procfs. Useful with kexec.
2015
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002016config CRASH_DUMP
2017 bool "Build kdump crash kernel (EXPERIMENTAL)"
2018 depends on EXPERIMENTAL
2019 help
2020 Generate crash dump after being started by kexec. This should
2021 be normally only set in special crash dump kernels which are
2022 loaded in the main kernel with kexec-tools into a specially
2023 reserved region and then later executed after a crash by
2024 kdump/kexec. The crash dump kernel must be compiled to a
2025 memory address not used by the main kernel
2026
2027 For more details see Documentation/kdump/kdump.txt
2028
Eric Miaoe69edc792010-07-05 15:56:50 +02002029config AUTO_ZRELADDR
2030 bool "Auto calculation of the decompressed kernel image address"
2031 depends on !ZBOOT_ROM && !ARCH_U300
2032 help
2033 ZRELADDR is the physical address where the decompressed kernel
2034 image will be placed. If AUTO_ZRELADDR is selected, the address
2035 will be determined at run-time by masking the current IP with
2036 0xf8000000. This assumes the zImage being placed in the first 128MB
2037 from start of memory.
2038
Linus Torvalds1da177e2005-04-16 15:20:36 -07002039endmenu
2040
Russell Kingac9d7ef2008-08-18 17:26:00 +01002041menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002042
Ben Dooks89c52ed2009-07-30 23:23:24 +01002043if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002044
2045source "drivers/cpufreq/Kconfig"
2046
Yong Shen64f102b2010-10-21 21:18:59 +08002047config CPU_FREQ_IMX
2048 tristate "CPUfreq driver for i.MX CPUs"
2049 depends on ARCH_MXC && CPU_FREQ
2050 help
2051 This enables the CPUfreq driver for i.MX CPUs.
2052
Linus Torvalds1da177e2005-04-16 15:20:36 -07002053config CPU_FREQ_SA1100
2054 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002055
2056config CPU_FREQ_SA1110
2057 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002058
2059config CPU_FREQ_INTEGRATOR
2060 tristate "CPUfreq driver for ARM Integrator CPUs"
2061 depends on ARCH_INTEGRATOR && CPU_FREQ
2062 default y
2063 help
2064 This enables the CPUfreq driver for ARM Integrator CPUs.
2065
2066 For details, take a look at <file:Documentation/cpu-freq>.
2067
2068 If in doubt, say Y.
2069
Russell King9e2697f2007-12-14 13:30:14 +00002070config CPU_FREQ_PXA
2071 bool
2072 depends on CPU_FREQ && ARCH_PXA && PXA25x
2073 default y
2074 select CPU_FREQ_DEFAULT_GOV_USERSPACE
2075
Ben Dooks9d56c022009-07-30 23:23:25 +01002076config CPU_FREQ_S3C
2077 bool
2078 help
2079 Internal configuration node for common cpufreq on Samsung SoC
2080
2081config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002082 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002083 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
2084 select CPU_FREQ_S3C
2085 help
2086 This enables the CPUfreq driver for the Samsung S3C24XX family
2087 of CPUs.
2088
2089 For details, take a look at <file:Documentation/cpu-freq>.
2090
2091 If in doubt, say N.
2092
2093config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002094 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002095 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2096 help
2097 Compile in support for changing the PLL frequency from the
2098 S3C24XX series CPUfreq driver. The PLL takes time to settle
2099 after a frequency change, so by default it is not enabled.
2100
2101 This also means that the PLL tables for the selected CPU(s) will
2102 be built which may increase the size of the kernel image.
2103
2104config CPU_FREQ_S3C24XX_DEBUG
2105 bool "Debug CPUfreq Samsung driver core"
2106 depends on CPU_FREQ_S3C24XX
2107 help
2108 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2109
2110config CPU_FREQ_S3C24XX_IODEBUG
2111 bool "Debug CPUfreq Samsung driver IO timing"
2112 depends on CPU_FREQ_S3C24XX
2113 help
2114 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2115
Ben Dookse6d197a2009-07-30 23:23:42 +01002116config CPU_FREQ_S3C24XX_DEBUGFS
2117 bool "Export debugfs for CPUFreq"
2118 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2119 help
2120 Export status information via debugfs.
2121
Linus Torvalds1da177e2005-04-16 15:20:36 -07002122endif
2123
Russell Kingac9d7ef2008-08-18 17:26:00 +01002124source "drivers/cpuidle/Kconfig"
2125
2126endmenu
2127
Linus Torvalds1da177e2005-04-16 15:20:36 -07002128menu "Floating point emulation"
2129
2130comment "At least one emulation must be selected"
2131
2132config FPE_NWFPE
2133 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002134 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002135 ---help---
2136 Say Y to include the NWFPE floating point emulator in the kernel.
2137 This is necessary to run most binaries. Linux does not currently
2138 support floating point hardware so you need to say Y here even if
2139 your machine has an FPA or floating point co-processor podule.
2140
2141 You may say N here if you are going to load the Acorn FPEmulator
2142 early in the bootup.
2143
2144config FPE_NWFPE_XP
2145 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002146 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002147 help
2148 Say Y to include 80-bit support in the kernel floating-point
2149 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2150 Note that gcc does not generate 80-bit operations by default,
2151 so in most cases this option only enlarges the size of the
2152 floating point emulator without any good reason.
2153
2154 You almost surely want to say N here.
2155
2156config FPE_FASTFPE
2157 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002158 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002159 ---help---
2160 Say Y here to include the FAST floating point emulator in the kernel.
2161 This is an experimental much faster emulator which now also has full
2162 precision for the mantissa. It does not support any exceptions.
2163 It is very simple, and approximately 3-6 times faster than NWFPE.
2164
2165 It should be sufficient for most programs. It may be not suitable
2166 for scientific calculations, but you have to check this for yourself.
2167 If you do not feel you need a faster FP emulation you should better
2168 choose NWFPE.
2169
2170config VFP
2171 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002172 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002173 help
2174 Say Y to include VFP support code in the kernel. This is needed
2175 if your hardware includes a VFP unit.
2176
2177 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2178 release notes and additional status information.
2179
2180 Say N if your target does not have VFP hardware.
2181
Catalin Marinas25ebee02007-09-25 15:22:24 +01002182config VFPv3
2183 bool
2184 depends on VFP
2185 default y if CPU_V7
2186
Catalin Marinasb5872db2008-01-10 19:16:17 +01002187config NEON
2188 bool "Advanced SIMD (NEON) Extension support"
2189 depends on VFPv3 && CPU_V7
2190 help
2191 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2192 Extension.
2193
Linus Torvalds1da177e2005-04-16 15:20:36 -07002194endmenu
2195
2196menu "Userspace binary formats"
2197
2198source "fs/Kconfig.binfmt"
2199
2200config ARTHUR
2201 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002202 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002203 help
2204 Say Y here to include the kernel code necessary if you want to run
2205 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2206 experimental; if this sounds frightening, say N and sleep in peace.
2207 You can also say M here to compile this support as a module (which
2208 will be called arthur).
2209
2210endmenu
2211
2212menu "Power management options"
2213
Russell Kingeceab4a2005-11-15 11:31:41 +00002214source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002215
Johannes Bergf4cb5702007-12-08 02:14:00 +01002216config ARCH_SUSPEND_POSSIBLE
Russell King586893e2011-05-25 21:47:48 +01002217 depends on !ARCH_S5P64X0 && !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002218 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
2219 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
Johannes Bergf4cb5702007-12-08 02:14:00 +01002220 def_bool y
2221
Linus Torvalds1da177e2005-04-16 15:20:36 -07002222endmenu
2223
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002224source "net/Kconfig"
2225
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002226source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002227
2228source "fs/Kconfig"
2229
Linus Torvalds1da177e2005-04-16 15:20:36 -07002230source "arch/arm/Kconfig.debug"
2231
2232source "security/Kconfig"
2233
2234source "crypto/Kconfig"
2235
2236source "lib/Kconfig"