blob: 44789eff983f444c22cd967cbe418f7e50159358 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
David Woodhousee17c6d52008-06-17 12:19:34 +01004 select HAVE_AOUT
Russell King24056f52011-01-03 11:29:28 +00005 select HAVE_DMA_API_DEBUG
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +02006 select HAVE_IDE if PCI || ISA || PCMCIA
Russell King2778f622010-07-09 16:27:52 +01007 select HAVE_MEMBLOCK
Alessandro Zummo12b824f2006-03-27 01:16:35 -08008 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +00009 select SYS_SUPPORTS_APM_EMULATION
Russell Kinga41297a2011-01-17 15:48:33 +000010 select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI)
Will Deaconfe166142010-04-30 11:37:51 +010011 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jason Wessel5cbad0e2008-02-20 13:33:40 -060012 select HAVE_ARCH_KGDB
Jon Medhurst856bc352011-06-14 13:09:39 +010013 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080014 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040015 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Rabin Vincent80be7a72010-08-10 19:58:17 +010016 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
17 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Rabin Vincent0e341af2010-11-06 23:03:53 +053018 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040019 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080020 select HAVE_KERNEL_GZIP
21 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010022 select HAVE_KERNEL_LZMA
Peter Zijlstrae360adb2010-10-14 14:01:34 +080023 select HAVE_IRQ_WORK
Jamie Iles7ada1892010-02-02 20:24:58 +010024 select HAVE_PERF_EVENTS
25 select PERF_USE_VMALLOC
Will Deacone513f8b2010-06-25 12:24:53 +010026 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kinge399b1a2011-01-17 15:08:32 +000027 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
Rabin Vincented604532010-11-30 17:36:48 +010028 select HAVE_C_RECORDMCOUNT
Lennert Buytenheke2a93ec2010-11-29 10:06:57 +010029 select HAVE_GENERIC_HARDIRQS
30 select HAVE_SPARSE_IRQ
Thomas Gleixner25a56622011-03-24 12:02:11 +010031 select GENERIC_IRQ_SHOW
Santosh Shilimkar1fb90262011-09-10 11:30:28 +053032 select CPU_PM if (SUSPEND || CPU_IDLE)
Linus Torvalds1da177e2005-04-16 15:20:36 -070033 help
34 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000035 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070036 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000037 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070038 Europe. There is an ARM Linux project with a web page at
39 <http://www.arm.linux.org.uk/>.
40
Russell King74facff2011-06-02 11:16:22 +010041config ARM_HAS_SG_CHAIN
42 bool
43
Russell King1a189b92008-04-13 21:41:55 +010044config HAVE_PWM
45 bool
46
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010047config MIGHT_HAVE_PCI
48 bool
49
Ralf Baechle75e71532007-02-09 17:08:58 +000050config SYS_SUPPORTS_APM_EMULATION
51 bool
52
Russell King112f38a42010-12-15 19:23:07 +000053config HAVE_SCHED_CLOCK
54 bool
55
David Brownell0a938b92007-03-05 00:30:18 -080056config GENERIC_GPIO
57 bool
David Brownell0a938b92007-03-05 00:30:18 -080058
John Stultz5cfc8ee2010-03-24 00:22:36 +000059config ARCH_USES_GETTIMEOFFSET
60 bool
61 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010062
Kevin Hilman0567a0c2007-03-13 20:29:24 +010063config GENERIC_CLOCKEVENTS
64 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010065
Catalin Marinasa8655e82008-02-04 17:30:57 +010066config GENERIC_CLOCKEVENTS_BROADCAST
67 bool
68 depends on GENERIC_CLOCKEVENTS
Russell King5388a6b2010-07-26 13:19:43 +010069 default y if SMP
Catalin Marinasa8655e82008-02-04 17:30:57 +010070
Rob Herringbf9dd362011-03-04 23:51:59 +010071config KTIME_SCALAR
72 bool
73 default y
74
Linus Walleijbc581772009-09-15 17:30:37 +010075config HAVE_TCM
76 bool
77 select GENERIC_ALLOCATOR
78
Russell Kinge119bff2010-01-10 17:23:29 +000079config HAVE_PROC_CPU
80 bool
81
Al Viro5ea81762007-02-11 15:41:31 +000082config NO_IOPORT
83 bool
Al Viro5ea81762007-02-11 15:41:31 +000084
Linus Torvalds1da177e2005-04-16 15:20:36 -070085config EISA
86 bool
87 ---help---
88 The Extended Industry Standard Architecture (EISA) bus was
89 developed as an open alternative to the IBM MicroChannel bus.
90
91 The EISA bus provided some of the features of the IBM MicroChannel
92 bus while maintaining backward compatibility with cards made for
93 the older ISA bus. The EISA bus saw limited use between 1988 and
94 1995 when it was made obsolete by the PCI bus.
95
96 Say Y here if you are building a kernel for an EISA-based machine.
97
98 Otherwise, say N.
99
100config SBUS
101 bool
102
103config MCA
104 bool
105 help
106 MicroChannel Architecture is found in some IBM PS/2 machines and
107 laptops. It is a bus system similar to PCI or ISA. See
108 <file:Documentation/mca.txt> (and especially the web page given
109 there) before attempting to build an MCA bus kernel.
110
Russell Kingf16fb1e2007-04-28 09:59:37 +0100111config STACKTRACE_SUPPORT
112 bool
113 default y
114
Nicolas Pitref76e9152008-04-24 01:31:46 -0400115config HAVE_LATENCYTOP_SUPPORT
116 bool
117 depends on !SMP
118 default y
119
Russell Kingf16fb1e2007-04-28 09:59:37 +0100120config LOCKDEP_SUPPORT
121 bool
122 default y
123
Russell King7ad1bcb2006-08-27 12:07:02 +0100124config TRACE_IRQFLAGS_SUPPORT
125 bool
126 default y
127
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100128config HARDIRQS_SW_RESEND
129 bool
130 default y
131
132config GENERIC_IRQ_PROBE
133 bool
134 default y
135
Nick Piggin95c354f2008-01-30 13:31:20 +0100136config GENERIC_LOCKBREAK
137 bool
138 default y
139 depends on SMP && PREEMPT
140
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141config RWSEM_GENERIC_SPINLOCK
142 bool
143 default y
144
145config RWSEM_XCHGADD_ALGORITHM
146 bool
147
David Howellsf0d1b0b2006-12-08 02:37:49 -0800148config ARCH_HAS_ILOG2_U32
149 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800150
151config ARCH_HAS_ILOG2_U64
152 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800153
Ben Dooks89c52ed2009-07-30 23:23:24 +0100154config ARCH_HAS_CPUFREQ
155 bool
156 help
157 Internal node to signify that the ARCH has CPUFREQ support
158 and that the relevant menu configurations are displayed for
159 it.
160
Kevin Hilmanc7b0aff2010-10-01 22:13:47 +0100161config ARCH_HAS_CPU_IDLE_WAIT
162 def_bool y
163
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800164config GENERIC_HWEIGHT
165 bool
166 default y
167
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168config GENERIC_CALIBRATE_DELAY
169 bool
170 default y
171
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100172config ARCH_MAY_HAVE_PC_FDC
173 bool
174
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800175config ZONE_DMA
176 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800177
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800178config NEED_DMA_MAP_STATE
179 def_bool y
180
Linus Torvalds1da177e2005-04-16 15:20:36 -0700181config GENERIC_ISA_DMA
182 bool
183
Linus Torvalds1da177e2005-04-16 15:20:36 -0700184config FIQ
185 bool
186
Al Viro034d2f52005-12-19 16:27:59 -0500187config ARCH_MTD_XIP
188 bool
189
Hyok S. Choic760fc12006-03-27 15:18:50 +0100190config VECTORS_BASE
191 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900192 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100193 default DRAM_BASE if REMAP_VECTORS_TO_RAM
194 default 0x00000000
195 help
196 The base address of exception vectors.
197
Russell Kingdc21af92011-01-04 19:09:43 +0000198config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100199 bool "Patch physical to virtual translations at runtime" if EMBEDDED
200 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100201 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000202 depends on !ARCH_REALVIEW || !SPARSEMEM
203 help
Russell King111e9a52011-05-12 10:02:42 +0100204 Patch phys-to-virt and virt-to-phys translation functions at
205 boot and module load time according to the position of the
206 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000207
Russell King111e9a52011-05-12 10:02:42 +0100208 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100209 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000210
Russell Kingc1beced2011-08-10 10:23:45 +0100211 Only disable this option if you know that you do not require
212 this feature (eg, building a kernel for a single machine) and
213 you need to shrink the kernel to the minimal size.
214
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400215config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400216 bool
Russell King111e9a52011-05-12 10:02:42 +0100217 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400218 Select this when mach/memory.h is required to provide special
219 definitions for this platform. The need for mach/memory.h should
220 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400221
222config PHYS_OFFSET
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
Simon Glass87e040b2011-08-16 23:44:26 +0100229config GENERIC_BUG
230 def_bool y
231 depends on BUG
232
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233source "init/Kconfig"
234
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700235source "kernel/Kconfig.freezer"
236
Linus Torvalds1da177e2005-04-16 15:20:36 -0700237menu "System Type"
238
Hyok S. Choi3c427972009-07-24 12:35:00 +0100239config MMU
240 bool "MMU-based Paged Memory Management Support"
241 default y
242 help
243 Select if you want MMU-based virtualised addressing space
244 support by paged memory management. If unsure, say 'Y'.
245
Russell Kingccf50e22010-03-15 19:03:06 +0000246#
247# The "ARM system type" choice list is ordered alphabetically by option
248# text. Please add new entries in the option alphabetic order.
249#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700250choice
251 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000252 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100254config ARCH_INTEGRATOR
255 bool "ARM Ltd. Integrator family"
256 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100257 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100258 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900259 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000260 select ICST
Russell King13edd862010-01-15 21:49:23 +0000261 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000262 select PLAT_VERSATILE
Russell Kingc41b16f2011-01-19 15:32:15 +0000263 select PLAT_VERSATILE_FPGA_IRQ
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400264 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100265 help
266 Support for ARM's Integrator platform.
267
268config ARCH_REALVIEW
269 bool "ARM Ltd. RealView family"
270 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100271 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900272 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000273 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100274 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100275 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000276 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000277 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000278 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100279 select GPIO_PL061 if GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400280 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100281 help
282 This enables support for ARM Ltd RealView boards.
283
284config ARCH_VERSATILE
285 bool "ARM Ltd. Versatile family"
286 select ARM_AMBA
287 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100288 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900289 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000290 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100291 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100292 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000293 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000294 select PLAT_VERSATILE_CLCD
Russell Kingc41b16f2011-01-19 15:32:15 +0000295 select PLAT_VERSATILE_FPGA_IRQ
Russell Kinge3887712010-01-14 13:30:16 +0000296 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100297 help
298 This enables support for ARM Ltd Versatile board.
299
Russell Kingceade892010-02-11 21:44:53 +0000300config ARCH_VEXPRESS
301 bool "ARM Ltd. Versatile Express family"
302 select ARCH_WANT_OPTIONAL_GPIOLIB
303 select ARM_AMBA
304 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100305 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900306 select HAVE_MACH_CLKDEV
Russell Kingceade892010-02-11 21:44:53 +0000307 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000308 select HAVE_CLK
Nick Bowler95c34f82011-01-21 15:51:06 +0100309 select HAVE_PATA_PLATFORM
Russell Kingceade892010-02-11 21:44:53 +0000310 select ICST
311 select PLAT_VERSATILE
Russell King0fb44b92011-01-18 20:13:51 +0000312 select PLAT_VERSATILE_CLCD
Russell Kingceade892010-02-11 21:44:53 +0000313 help
314 This enables support for the ARM Ltd Versatile Express boards.
315
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100316config ARCH_AT91
317 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100318 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700319 select HAVE_CLK
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100320 select CLKDEV_LOOKUP
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100321 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100322 This enables support for systems based on the Atmel AT91RM9200,
323 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100324
Russell Kingccf50e22010-03-15 19:03:06 +0000325config ARCH_BCMRING
326 bool "Broadcom BCMRING"
327 depends on MMU
328 select CPU_V6
329 select ARM_AMBA
Russell King82d63732011-05-12 13:43:39 +0100330 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100331 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000332 select GENERIC_CLOCKEVENTS
333 select ARCH_WANT_OPTIONAL_GPIOLIB
334 help
335 Support for Broadcom's BCMRing platform.
336
Rob Herring220e6cf2011-06-07 10:02:55 -0500337config ARCH_HIGHBANK
338 bool "Calxeda Highbank-based"
339 select ARCH_WANT_OPTIONAL_GPIOLIB
340 select ARM_AMBA
341 select ARM_GIC
342 select ARM_TIMER_SP804
343 select CLKDEV_LOOKUP
344 select CPU_V7
345 select GENERIC_CLOCKEVENTS
346 select HAVE_ARM_SCU
347 select USE_OF
348 help
349 Support for the Calxeda Highbank SoC based boards.
350
Linus Torvalds1da177e2005-04-16 15:20:36 -0700351config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100352 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000353 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000354 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400355 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000356 help
357 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700358
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300359config ARCH_CNS3XXX
360 bool "Cavium Networks CNS3XXX family"
Imre Kaloz00d27112011-07-07 12:19:09 +0200361 select CPU_V6K
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300362 select GENERIC_CLOCKEVENTS
363 select ARM_GIC
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100364 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400365 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300366 help
367 Support for Cavium Networks CNS3XXX platform.
368
Russell King788c9702009-04-26 14:21:59 +0100369config ARCH_GEMINI
370 bool "Cortina Systems Gemini"
371 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100372 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000373 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100374 help
375 Support for the Cortina Systems Gemini family SoCs
376
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200377config ARCH_PRIMA2
378 bool "CSR SiRFSoC PRIMA2 ARM Cortex A9 Platform"
379 select CPU_V7
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200380 select NO_IOPORT
381 select GENERIC_CLOCKEVENTS
382 select CLKDEV_LOOKUP
383 select GENERIC_IRQ_CHIP
384 select USE_OF
385 select ZONE_DMA
386 help
387 Support for CSR SiRFSoC ARM Cortex A9 Platform
388
Linus Torvalds1da177e2005-04-16 15:20:36 -0700389config ARCH_EBSA110
390 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000391 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100392 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000393 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000394 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400395 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700396 help
397 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000398 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700399 Ethernet interface, two PCMCIA sockets, two serial ports and a
400 parallel port.
401
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000402config ARCH_EP93XX
403 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000404 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000405 select ARM_AMBA
406 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100407 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700408 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100409 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000410 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100411 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000412 help
413 This enables support for the Cirrus EP93xx series of CPUs.
414
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415config ARCH_FOOTBRIDGE
416 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000417 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700418 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000419 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200420 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400421 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000422 help
423 Support for systems based on the DC21285 companion chip
424 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700425
Russell King788c9702009-04-26 14:21:59 +0100426config ARCH_MXC
427 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100428 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100429 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100430 select CLKDEV_LOOKUP
Russell King234b6ce2011-05-08 14:09:47 +0100431 select CLKSRC_MMIO
Shawn Guo8b6c44f2011-06-07 13:59:14 +0800432 select GENERIC_IRQ_CHIP
Jan Weitzelc124bef2011-03-17 13:44:30 +0100433 select HAVE_SCHED_CLOCK
Sascha Hauerffa2ea32011-09-20 14:31:24 +0200434 select MULTI_IRQ_HANDLER
Russell King788c9702009-04-26 14:21:59 +0100435 help
436 Support for Freescale MXC/iMX-based family of processors
437
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800438config ARCH_MXS
439 bool "Freescale MXS-based"
440 select GENERIC_CLOCKEVENTS
441 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100442 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100443 select CLKSRC_MMIO
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800444 help
445 Support for Freescale MXS-based family of processors
446
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100447config ARCH_NETX
448 bool "Hilscher NetX based"
Russell King234b6ce2011-05-08 14:09:47 +0100449 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000450 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100451 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100452 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000453 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100454 This enables support for systems based on the Hilscher NetX Soc
455
456config ARCH_H720X
457 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000458 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100459 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000460 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100461 help
462 This enables support for systems based on the Hynix HMS720x
463
Russell King3b938be2007-05-12 11:25:44 +0100464config ARCH_IOP13XX
465 bool "IOP13xx-based"
466 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000467 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100468 select PLAT_IOP
469 select PCI
470 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100471 select VMSPLIT_1G
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400472 select NEED_MACH_MEMORY_H
Russell King3b938be2007-05-12 11:25:44 +0100473 help
474 Support for Intel's IOP13XX (XScale) family of processors.
475
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100476config ARCH_IOP32X
477 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100478 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000479 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100480 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100481 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100482 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000483 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100484 Support for Intel's 80219 and IOP32X (XScale) family of
485 processors.
486
487config ARCH_IOP33X
488 bool "IOP33x-based"
489 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000490 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100491 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100492 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100493 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100494 help
495 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700496
Russell King3b938be2007-05-12 11:25:44 +0100497config ARCH_IXP23XX
498 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100499 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000500 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100501 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000502 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400503 select NEED_MACH_MEMORY_H
Dan Williams285f5fa2006-12-07 02:59:39 +0100504 help
Russell King3b938be2007-05-12 11:25:44 +0100505 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700506
507config ARCH_IXP2000
508 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100509 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000510 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100511 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000512 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400513 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000514 help
515 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700516
Russell King3b938be2007-05-12 11:25:44 +0100517config ARCH_IXP4XX
518 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100519 depends on MMU
Russell King234b6ce2011-05-08 14:09:47 +0100520 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000521 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100522 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100523 select GENERIC_CLOCKEVENTS
Russell King5b0d4952010-12-15 21:23:13 +0000524 select HAVE_SCHED_CLOCK
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100525 select MIGHT_HAVE_PCI
Russell King485bdde2008-10-17 14:00:43 +0100526 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100527 help
Russell King3b938be2007-05-12 11:25:44 +0100528 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100529
Saeed Bisharaedabd382009-08-06 15:12:43 +0300530config ARCH_DOVE
531 bool "Marvell Dove"
Konstantin Porotchkin7b769bb2011-04-07 13:49:41 +0300532 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300533 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300534 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300535 select GENERIC_CLOCKEVENTS
536 select PLAT_ORION
537 help
538 Support for the Marvell Dove SoC 88AP510
539
Saeed Bishara651c74c2008-06-22 22:45:06 +0200540config ARCH_KIRKWOOD
541 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000542 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200543 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700544 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200545 select GENERIC_CLOCKEVENTS
546 select PLAT_ORION
547 help
548 Support for the following Marvell Kirkwood series SoCs:
549 88F6180, 88F6192 and 88F6281.
550
Kevin Wells40805942010-07-27 08:49:04 -0700551config ARCH_LPC32XX
552 bool "NXP LPC32XX"
Russell King234b6ce2011-05-08 14:09:47 +0100553 select CLKSRC_MMIO
Kevin Wells40805942010-07-27 08:49:04 -0700554 select CPU_ARM926T
555 select ARCH_REQUIRE_GPIOLIB
556 select HAVE_IDE
557 select ARM_AMBA
558 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100559 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700560 select GENERIC_CLOCKEVENTS
561 help
562 Support for the NXP LPC32XX family of processors
563
Russell King788c9702009-04-26 14:21:59 +0100564config ARCH_MV78XX0
565 bool "Marvell MV78xx0"
566 select CPU_FEROCEON
567 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700568 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100569 select GENERIC_CLOCKEVENTS
570 select PLAT_ORION
571 help
572 Support for the following Marvell MV78xx0 series SoCs:
573 MV781x0, MV782x0.
574
575config ARCH_ORION5X
576 bool "Marvell Orion"
577 depends on MMU
578 select CPU_FEROCEON
579 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700580 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100581 select GENERIC_CLOCKEVENTS
582 select PLAT_ORION
583 help
584 Support for the following Marvell Orion 5x series SoCs:
585 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
586 Orion-2 (5281), Orion-1-90 (6183).
587
588config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500589 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100590 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100591 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100592 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100593 select GENERIC_CLOCKEVENTS
Russell King28bb7bc2010-12-15 21:46:48 +0000594 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100595 select TICK_ONESHOT
596 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400597 select SPARSE_IRQ
Leo Yan3c7241b2011-08-15 11:09:52 +0800598 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100599 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500600 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100601
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100602config ARCH_KS8695
603 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000604 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100605 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000606 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400607 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100608 help
609 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
610 System-on-Chip devices.
611
Russell King788c9702009-04-26 14:21:59 +0100612config ARCH_W90X900
613 bool "Nuvoton W90X900 CPU"
614 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100615 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100616 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100617 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100618 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200619 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100620 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
621 At present, the w90x900 has been renamed nuc900, regarding
622 the ARM series product line, you can login the following
623 link address to know more.
624
625 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
626 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400627
Erik Gillingc5f80062010-01-21 16:53:02 -0800628config ARCH_TEGRA
629 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000630 select CLKDEV_LOOKUP
Russell King234b6ce2011-05-08 14:09:47 +0100631 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800632 select GENERIC_CLOCKEVENTS
633 select GENERIC_GPIO
634 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000635 select HAVE_SCHED_CLOCK
Colin Cross7056d422010-04-22 20:30:13 -0700636 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800637 help
638 This enables support for NVIDIA Tegra based systems (Tegra APX,
639 Tegra 6xx and Tegra 2 series).
640
Jamie Ilesaf756552011-07-25 17:36:42 +0100641config ARCH_PICOXCELL
642 bool "Picochip picoXcell"
643 select ARCH_REQUIRE_GPIOLIB
644 select ARM_PATCH_PHYS_VIRT
645 select ARM_VIC
646 select CPU_V6K
647 select DW_APB_TIMER
648 select GENERIC_CLOCKEVENTS
649 select GENERIC_GPIO
650 select HAVE_SCHED_CLOCK
651 select HAVE_TCM
652 select NO_IOPORT
653 select USE_OF
654 help
655 This enables support for systems based on the Picochip picoXcell
656 family of Femtocell devices. The picoxcell support requires device tree
657 for all boards.
658
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100659config ARCH_PNX4008
660 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000661 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100662 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000663 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100664 help
665 This enables support for Philips PNX4008 mobile platform.
666
Linus Torvalds1da177e2005-04-16 15:20:36 -0700667config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700668 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100669 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500670 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100671 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100672 select CLKDEV_LOOKUP
Russell King234b6ce2011-05-08 14:09:47 +0100673 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700674 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100675 select GENERIC_CLOCKEVENTS
Russell King7ce83012010-12-15 21:48:15 +0000676 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000677 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800678 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800679 select SPARSE_IRQ
Eric Miao4e234cc2011-04-04 15:06:33 +0800680 select AUTO_ZRELADDR
Eric Miao8a97ae22011-05-18 21:30:04 +0800681 select MULTI_IRQ_HANDLER
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +0200682 select ARM_CPU_SUSPEND if PM
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200683 select HAVE_IDE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000684 help
eric miao2c8086a2007-09-11 19:13:17 -0700685 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700686
Russell King788c9702009-04-26 14:21:59 +0100687config ARCH_MSM
688 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500689 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800690 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700691 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800692 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800693 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800694 Support for Qualcomm MSM/QSD based systems. This runs on the
695 apps processor of the MSM/QSD and depends on a shared memory
696 interface to the modem processor which runs the baseband
697 stack and controls some vital subsystems
698 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800699
Magnus Dammc793c1b2010-02-05 11:14:49 +0000700config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900701 bool "Renesas SH-Mobile / R-Mobile"
702 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900703 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900704 select HAVE_MACH_CLKDEV
Paul Mundt6d72ad32010-11-16 16:10:20 +0900705 select GENERIC_CLOCKEVENTS
706 select NO_IOPORT
707 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000708 select MULTI_IRQ_HANDLER
Rafael J. Wysockie3e01092011-07-01 22:13:56 +0200709 select PM_GENERIC_DOMAINS if PM
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400710 select NEED_MACH_MEMORY_H
Magnus Dammc793c1b2010-02-05 11:14:49 +0000711 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900712 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000713
Linus Torvalds1da177e2005-04-16 15:20:36 -0700714config ARCH_RPC
715 bool "RiscPC"
716 select ARCH_ACORN
717 select FIQ
718 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100719 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100720 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000721 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000722 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100723 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000724 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200725 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400726 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700727 help
728 On the Acorn Risc-PC, Linux can support the internal IDE disk and
729 CD-ROM interface, serial and parallel port, and the floppy drive.
730
731config ARCH_SA1100
732 bool "SA1100-based"
Russell King234b6ce2011-05-08 14:09:47 +0100733 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000734 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100735 select ISA
Russell King05944d72006-11-30 20:43:51 +0000736 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500737 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100738 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000739 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100740 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700741 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000742 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100743 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700744 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200745 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400746 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000747 help
748 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700749
750config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900751 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800752 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100753 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700754 select HAVE_CLK
Thomas Abrahame83626f2011-06-14 19:12:26 +0900755 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000756 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900757 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700758 help
759 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
760 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000761 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700762
Ben Dooks63b1f512010-04-30 16:32:26 +0900763 Note, the S3C2416 and the S3C2450 are so close that they even share
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300764 the same SoC ID code. This means that there is no separate machine
Ben Dooks63b1f512010-04-30 16:32:26 +0900765 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
766
Ben Dooksa08ab632008-10-21 14:06:39 +0100767config ARCH_S3C64XX
768 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000769 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900770 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900771 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100772 select HAVE_CLK
Mark Brown67003972011-10-11 08:57:11 +0900773 select HAVE_TCM
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
Ben Dooks89f0ce72010-01-26 15:49:15 +0900781 select S3C_GPIO_TRACK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900782 select S3C_DEV_NAND
783 select USB_ARCH_HAS_OHCI
784 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900785 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900786 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100787 help
788 Samsung S3C64XX series based systems
789
Kukjin Kim49b7a492010-09-07 15:47:18 +0900790config ARCH_S5P64X0
791 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900792 select CPU_V6
793 select GENERIC_GPIO
794 select HAVE_CLK
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900795 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900796 select CLKSRC_MMIO
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900797 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900798 select GENERIC_CLOCKEVENTS
799 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900800 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900801 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900802 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900803 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
804 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900805
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200806config ARCH_S5PC100
807 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900808 select GENERIC_GPIO
809 select HAVE_CLK
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900810 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900811 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100812 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900813 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900814 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900815 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900816 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900817 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200818 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900819
Kukjin Kim170f4e42010-02-24 16:40:44 +0900820config ARCH_S5PV210
821 bool "Samsung S5PV210/S5PC110"
822 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900823 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900824 select ARCH_HAS_HOLES_MEMORYMODEL
Kukjin Kim170f4e42010-02-24 16:40:44 +0900825 select GENERIC_GPIO
826 select HAVE_CLK
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900827 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900828 select CLKSRC_MMIO
Kukjin Kim170f4e42010-02-24 16:40:44 +0900829 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900830 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900831 select GENERIC_CLOCKEVENTS
832 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900833 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900834 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900835 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400836 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900837 help
838 Samsung S5PV210/S5PC110 series based systems
839
Kukjin Kim83014572011-11-06 13:54:56 +0900840config ARCH_EXYNOS
841 bool "SAMSUNG EXYNOS"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900842 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900843 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900844 select ARCH_HAS_HOLES_MEMORYMODEL
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900845 select GENERIC_GPIO
846 select HAVE_CLK
Thomas Abrahambadc4f22011-06-14 19:12:27 +0900847 select CLKDEV_LOOKUP
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900848 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900849 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900850 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900851 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900852 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400853 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900854 help
Kukjin Kim83014572011-11-06 13:54:56 +0900855 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900856
Linus Torvalds1da177e2005-04-16 15:20:36 -0700857config ARCH_SHARK
858 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000859 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100860 select ISA
861 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100862 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100863 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000864 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400865 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000866 help
867 Support for the StrongARM based Digital DNARD machine, also known
868 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700869
Hans J. Koch83ef3332010-09-17 18:13:56 +0200870config ARCH_TCC_926
871 bool "Telechips TCC ARM926-based systems"
Russell King234b6ce2011-05-08 14:09:47 +0100872 select CLKSRC_MMIO
Hans J. Koch83ef3332010-09-17 18:13:56 +0200873 select CPU_ARM926T
874 select HAVE_CLK
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100875 select CLKDEV_LOOKUP
Hans J. Koch83ef3332010-09-17 18:13:56 +0200876 select GENERIC_CLOCKEVENTS
877 help
878 Support for Telechips TCC ARM926-based systems.
879
Linus Walleijd98aac72009-04-27 10:21:46 +0100880config ARCH_U300
881 bool "ST-Ericsson U300 Series"
882 depends on MMU
Russell King234b6ce2011-05-08 14:09:47 +0100883 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100884 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000885 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100886 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100887 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200888 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100889 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100890 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100891 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900892 select HAVE_MACH_CLKDEV
Linus Walleijd98aac72009-04-27 10:21:46 +0100893 select GENERIC_GPIO
Linus Walleijcc890cd2011-09-08 09:04:51 +0100894 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400895 select NEED_MACH_MEMORY_H
Linus Walleijd98aac72009-04-27 10:21:46 +0100896 help
897 Support for ST-Ericsson U300 series mobile platforms.
898
Russell Kingccf50e22010-03-15 19:03:06 +0000899config ARCH_U8500
900 bool "ST-Ericsson U8500 Series"
901 select CPU_V7
902 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000903 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100904 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100905 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100906 select ARCH_HAS_CPUFREQ
Russell Kingccf50e22010-03-15 19:03:06 +0000907 help
908 Support for ST-Ericsson's Ux500 architecture
909
910config ARCH_NOMADIK
911 bool "STMicroelectronics Nomadik"
912 select ARM_AMBA
913 select ARM_VIC
914 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100915 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000916 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000917 select ARCH_REQUIRE_GPIOLIB
918 help
919 Support for the Nomadik platform by ST-Ericsson
920
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100921config ARCH_DAVINCI
922 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100923 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700924 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100925 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700926 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100927 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700928 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100929 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530930 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100931 help
932 Support for TI's DaVinci platform.
933
Russell King3b938be2007-05-12 11:25:44 +0100934config ARCH_OMAP
935 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700936 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700937 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100938 select ARCH_HAS_CPUFREQ
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700939 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700940 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000941 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800942 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100943 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200944 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100945
viresh kumarcee37e52010-04-01 12:31:05 +0100946config PLAT_SPEAR
947 bool "ST SPEAr"
948 select ARM_AMBA
949 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100950 select CLKDEV_LOOKUP
Russell Kingd6e15d72011-05-08 17:10:14 +0100951 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100952 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100953 select HAVE_CLK
954 help
955 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
956
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100957config ARCH_VT8500
958 bool "VIA/WonderMedia 85xx"
959 select CPU_ARM926T
960 select GENERIC_GPIO
961 select ARCH_HAS_CPUFREQ
962 select GENERIC_CLOCKEVENTS
963 select ARCH_REQUIRE_GPIOLIB
964 select HAVE_PWM
965 help
966 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +0800967
John Linnb85a3ef2011-06-20 11:47:27 -0600968config ARCH_ZYNQ
969 bool "Xilinx Zynq ARM Cortex A9 Platform"
Binghua Duan02c981c2011-07-08 17:40:12 +0800970 select CPU_V7
Binghua Duan02c981c2011-07-08 17:40:12 +0800971 select GENERIC_CLOCKEVENTS
972 select CLKDEV_LOOKUP
John Linnb85a3ef2011-06-20 11:47:27 -0600973 select ARM_GIC
974 select ARM_AMBA
975 select ICST
Binghua Duan02c981c2011-07-08 17:40:12 +0800976 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +0800977 help
John Linnb85a3ef2011-06-20 11:47:27 -0600978 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -0700979endchoice
980
Russell Kingccf50e22010-03-15 19:03:06 +0000981#
982# This is sorted alphabetically by mach-* pathname. However, plat-*
983# Kconfigs may be included either alphabetically (according to the
984# plat- suffix) or along side the corresponding mach-* source.
985#
Russell King95b8f202010-01-14 11:43:54 +0000986source "arch/arm/mach-at91/Kconfig"
987
988source "arch/arm/mach-bcmring/Kconfig"
989
Linus Torvalds1da177e2005-04-16 15:20:36 -0700990source "arch/arm/mach-clps711x/Kconfig"
991
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300992source "arch/arm/mach-cns3xxx/Kconfig"
993
Russell King95b8f202010-01-14 11:43:54 +0000994source "arch/arm/mach-davinci/Kconfig"
995
996source "arch/arm/mach-dove/Kconfig"
997
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000998source "arch/arm/mach-ep93xx/Kconfig"
999
Linus Torvalds1da177e2005-04-16 15:20:36 -07001000source "arch/arm/mach-footbridge/Kconfig"
1001
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001002source "arch/arm/mach-gemini/Kconfig"
1003
Russell King95b8f202010-01-14 11:43:54 +00001004source "arch/arm/mach-h720x/Kconfig"
1005
Linus Torvalds1da177e2005-04-16 15:20:36 -07001006source "arch/arm/mach-integrator/Kconfig"
1007
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001008source "arch/arm/mach-iop32x/Kconfig"
1009
1010source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001011
Dan Williams285f5fa2006-12-07 02:59:39 +01001012source "arch/arm/mach-iop13xx/Kconfig"
1013
Linus Torvalds1da177e2005-04-16 15:20:36 -07001014source "arch/arm/mach-ixp4xx/Kconfig"
1015
1016source "arch/arm/mach-ixp2000/Kconfig"
1017
Lennert Buytenhekc4713072006-03-28 21:18:54 +01001018source "arch/arm/mach-ixp23xx/Kconfig"
1019
Russell King95b8f202010-01-14 11:43:54 +00001020source "arch/arm/mach-kirkwood/Kconfig"
1021
1022source "arch/arm/mach-ks8695/Kconfig"
1023
Kevin Wells40805942010-07-27 08:49:04 -07001024source "arch/arm/mach-lpc32xx/Kconfig"
1025
Russell King95b8f202010-01-14 11:43:54 +00001026source "arch/arm/mach-msm/Kconfig"
1027
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001028source "arch/arm/mach-mv78xx0/Kconfig"
1029
Russell King95b8f202010-01-14 11:43:54 +00001030source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001031
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001032source "arch/arm/mach-mxs/Kconfig"
1033
Russell King95b8f202010-01-14 11:43:54 +00001034source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001035
Russell King95b8f202010-01-14 11:43:54 +00001036source "arch/arm/mach-nomadik/Kconfig"
1037source "arch/arm/plat-nomadik/Kconfig"
1038
Tony Lindgrend48af152005-07-10 19:58:17 +01001039source "arch/arm/plat-omap/Kconfig"
1040
1041source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001042
Tony Lindgren1dbae812005-11-10 14:26:51 +00001043source "arch/arm/mach-omap2/Kconfig"
1044
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001045source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001046
Russell King95b8f202010-01-14 11:43:54 +00001047source "arch/arm/mach-pxa/Kconfig"
1048source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001049
Russell King95b8f202010-01-14 11:43:54 +00001050source "arch/arm/mach-mmp/Kconfig"
1051
1052source "arch/arm/mach-realview/Kconfig"
1053
1054source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001055
Ben Dookscf383672009-11-10 00:14:58 +00001056source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001057source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001058source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001059
viresh kumarcee37e52010-04-01 12:31:05 +01001060source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001061
Hans J. Koch83ef3332010-09-17 18:13:56 +02001062source "arch/arm/plat-tcc/Kconfig"
1063
Ben Dooksa21765a2007-02-11 18:31:01 +01001064if ARCH_S3C2410
Linus Torvalds1da177e2005-04-16 15:20:36 -07001065source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001066source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +09001067source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001068source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +01001069source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001070endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001071
Ben Dooksa08ab632008-10-21 14:06:39 +01001072if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001073source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001074endif
1075
Kukjin Kim49b7a492010-09-07 15:47:18 +09001076source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001077
Byungho Min5a7652f2009-06-23 21:39:42 +09001078source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001079
Kukjin Kim170f4e42010-02-24 16:40:44 +09001080source "arch/arm/mach-s5pv210/Kconfig"
1081
Kukjin Kim83014572011-11-06 13:54:56 +09001082source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001083
Russell King882d01f2010-03-02 23:40:15 +00001084source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001085
Erik Gillingc5f80062010-01-21 16:53:02 -08001086source "arch/arm/mach-tegra/Kconfig"
1087
Russell King95b8f202010-01-14 11:43:54 +00001088source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001089
Russell King95b8f202010-01-14 11:43:54 +00001090source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001091
1092source "arch/arm/mach-versatile/Kconfig"
1093
Russell Kingceade892010-02-11 21:44:53 +00001094source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001095source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001096
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001097source "arch/arm/mach-vt8500/Kconfig"
1098
wanzongshun7ec80dd2008-12-03 03:55:38 +01001099source "arch/arm/mach-w90x900/Kconfig"
1100
Linus Torvalds1da177e2005-04-16 15:20:36 -07001101# Definitions to make life easier
1102config ARCH_ACORN
1103 bool
1104
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001105config PLAT_IOP
1106 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001107 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001108 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001109
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001110config PLAT_ORION
1111 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001112 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001113 select GENERIC_IRQ_CHIP
Russell Kingf06a1622010-12-15 21:55:06 +00001114 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001115
Eric Miaobd5ce432009-01-20 12:06:01 +08001116config PLAT_PXA
1117 bool
1118
Russell Kingf4b8b312010-01-14 12:48:06 +00001119config PLAT_VERSATILE
1120 bool
1121
Russell Kinge3887712010-01-14 13:30:16 +00001122config ARM_TIMER_SP804
1123 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001124 select CLKSRC_MMIO
Russell Kinge3887712010-01-14 13:30:16 +00001125
Linus Torvalds1da177e2005-04-16 15:20:36 -07001126source arch/arm/mm/Kconfig
1127
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001128config IWMMXT
1129 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001130 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1131 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001132 help
1133 Enable support for iWMMXt context switching at run time if
1134 running on a CPU that supports it.
1135
Linus Torvalds1da177e2005-04-16 15:20:36 -07001136# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1137config XSCALE_PMU
1138 bool
1139 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1140 default y
1141
Jamie Iles0f4f0672010-02-02 20:23:15 +01001142config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001143 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001144 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001145 default y
1146 bool
1147
eric miao52108642010-12-13 09:42:34 +01001148config MULTI_IRQ_HANDLER
1149 bool
1150 help
1151 Allow each machine to specify it's own IRQ handler at run time.
1152
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001153if !MMU
1154source "arch/arm/Kconfig-nommu"
1155endif
1156
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001157config ARM_ERRATA_411920
1158 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001159 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001160 help
1161 Invalidation of the Instruction Cache operation can
1162 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1163 It does not affect the MPCore. This option enables the ARM Ltd.
1164 recommended workaround.
1165
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001166config ARM_ERRATA_430973
1167 bool "ARM errata: Stale prediction on replaced interworking branch"
1168 depends on CPU_V7
1169 help
1170 This option enables the workaround for the 430973 Cortex-A8
1171 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1172 interworking branch is replaced with another code sequence at the
1173 same virtual address, whether due to self-modifying code or virtual
1174 to physical address re-mapping, Cortex-A8 does not recover from the
1175 stale interworking branch prediction. This results in Cortex-A8
1176 executing the new code sequence in the incorrect ARM or Thumb state.
1177 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1178 and also flushes the branch target cache at every context switch.
1179 Note that setting specific bits in the ACTLR register may not be
1180 available in non-secure mode.
1181
Catalin Marinas855c5512009-04-30 17:06:15 +01001182config ARM_ERRATA_458693
1183 bool "ARM errata: Processor deadlock when a false hazard is created"
1184 depends on CPU_V7
1185 help
1186 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1187 erratum. For very specific sequences of memory operations, it is
1188 possible for a hazard condition intended for a cache line to instead
1189 be incorrectly associated with a different cache line. This false
1190 hazard might then cause a processor deadlock. The workaround enables
1191 the L1 caching of the NEON accesses and disables the PLD instruction
1192 in the ACTLR register. Note that setting specific bits in the ACTLR
1193 register may not be available in non-secure mode.
1194
Catalin Marinas0516e462009-04-30 17:06:20 +01001195config ARM_ERRATA_460075
1196 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1197 depends on CPU_V7
1198 help
1199 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1200 erratum. Any asynchronous access to the L2 cache may encounter a
1201 situation in which recent store transactions to the L2 cache are lost
1202 and overwritten with stale memory contents from external memory. The
1203 workaround disables the write-allocate mode for the L2 cache via the
1204 ACTLR register. Note that setting specific bits in the ACTLR register
1205 may not be available in non-secure mode.
1206
Will Deacon9f050272010-09-14 09:51:43 +01001207config ARM_ERRATA_742230
1208 bool "ARM errata: DMB operation may be faulty"
1209 depends on CPU_V7 && SMP
1210 help
1211 This option enables the workaround for the 742230 Cortex-A9
1212 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1213 between two write operations may not ensure the correct visibility
1214 ordering of the two writes. This workaround sets a specific bit in
1215 the diagnostic register of the Cortex-A9 which causes the DMB
1216 instruction to behave as a DSB, ensuring the correct behaviour of
1217 the two writes.
1218
Will Deacona672e992010-09-14 09:53:02 +01001219config ARM_ERRATA_742231
1220 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1221 depends on CPU_V7 && SMP
1222 help
1223 This option enables the workaround for the 742231 Cortex-A9
1224 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1225 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1226 accessing some data located in the same cache line, may get corrupted
1227 data due to bad handling of the address hazard when the line gets
1228 replaced from one of the CPUs at the same time as another CPU is
1229 accessing it. This workaround sets specific bits in the diagnostic
1230 register of the Cortex-A9 which reduces the linefill issuing
1231 capabilities of the processor.
1232
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001233config PL310_ERRATA_588369
1234 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001235 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001236 help
1237 The PL310 L2 cache controller implements three types of Clean &
1238 Invalidate maintenance operations: by Physical Address
1239 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1240 They are architecturally defined to behave as the execution of a
1241 clean operation followed immediately by an invalidate operation,
1242 both performing to the same memory location. This functionality
1243 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001244 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001245
1246config ARM_ERRATA_720789
1247 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1248 depends on CPU_V7 && SMP
1249 help
1250 This option enables the workaround for the 720789 Cortex-A9 (prior to
1251 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1252 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1253 As a consequence of this erratum, some TLB entries which should be
1254 invalidated are not, resulting in an incoherency in the system page
1255 tables. The workaround changes the TLB flushing routines to invalidate
1256 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001257
Russell King1f0090a2011-03-16 23:35:25 +00001258config PL310_ERRATA_727915
1259 bool "Background Clean & Invalidate by Way operation can cause data corruption"
1260 depends on CACHE_L2X0
1261 help
1262 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1263 operation (offset 0x7FC). This operation runs in background so that
1264 PL310 can handle normal accesses while it is in progress. Under very
1265 rare circumstances, due to this erratum, write data can be lost when
1266 PL310 treats a cacheable write transaction during a Clean &
1267 Invalidate by Way operation.
1268
Will Deacon475d92f2010-09-28 14:02:02 +01001269config ARM_ERRATA_743622
1270 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1271 depends on CPU_V7
1272 help
1273 This option enables the workaround for the 743622 Cortex-A9
1274 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1275 optimisation in the Cortex-A9 Store Buffer may lead to data
1276 corruption. This workaround sets a specific bit in the diagnostic
1277 register of the Cortex-A9 which disables the Store Buffer
1278 optimisation, preventing the defect from occurring. This has no
1279 visible impact on the overall performance or power consumption of the
1280 processor.
1281
Will Deacon9a27c272011-02-18 16:36:35 +01001282config ARM_ERRATA_751472
1283 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
1284 depends on CPU_V7 && SMP
1285 help
1286 This option enables the workaround for the 751472 Cortex-A9 (prior
1287 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1288 completion of a following broadcasted operation if the second
1289 operation is received by a CPU before the ICIALLUIS has completed,
1290 potentially leading to corrupted entries in the cache or TLB.
1291
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001292config ARM_ERRATA_753970
1293 bool "ARM errata: cache sync operation may be faulty"
1294 depends on CACHE_PL310
1295 help
1296 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1297
1298 Under some condition the effect of cache sync operation on
1299 the store buffer still remains when the operation completes.
1300 This means that the store buffer is always asked to drain and
1301 this prevents it from merging any further writes. The workaround
1302 is to replace the normal offset of cache sync operation (0x730)
1303 by another offset targeting an unmapped PL310 register 0x740.
1304 This has the same effect as the cache sync operation: store buffer
1305 drain and waiting for all buffers empty.
1306
Will Deaconfcbdc5f2011-02-28 18:15:16 +01001307config ARM_ERRATA_754322
1308 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1309 depends on CPU_V7
1310 help
1311 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1312 r3p*) erratum. A speculative memory access may cause a page table walk
1313 which starts prior to an ASID switch but completes afterwards. This
1314 can populate the micro-TLB with a stale entry which may be hit with
1315 the new ASID. This workaround places two dsb instructions in the mm
1316 switching code so that no page table walks can cross the ASID switch.
1317
Will Deacon5dab26a2011-03-04 12:38:54 +01001318config ARM_ERRATA_754327
1319 bool "ARM errata: no automatic Store Buffer drain"
1320 depends on CPU_V7 && SMP
1321 help
1322 This option enables the workaround for the 754327 Cortex-A9 (prior to
1323 r2p0) erratum. The Store Buffer does not have any automatic draining
1324 mechanism and therefore a livelock may occur if an external agent
1325 continuously polls a memory location waiting to observe an update.
1326 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1327 written polling loops from denying visibility of updates to memory.
1328
Catalin Marinas145e10e2011-08-15 11:04:41 +01001329config ARM_ERRATA_364296
1330 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1331 depends on CPU_V6 && !SMP
1332 help
1333 This options enables the workaround for the 364296 ARM1136
1334 r0p2 erratum (possible cache data corruption with
1335 hit-under-miss enabled). It sets the undocumented bit 31 in
1336 the auxiliary control register and the FI bit in the control
1337 register, thus disabling hit-under-miss without putting the
1338 processor into full low interrupt latency mode. ARM11MPCore
1339 is not affected.
1340
Will Deaconf630c1b2011-09-15 11:45:15 +01001341config ARM_ERRATA_764369
1342 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1343 depends on CPU_V7 && SMP
1344 help
1345 This option enables the workaround for erratum 764369
1346 affecting Cortex-A9 MPCore with two or more processors (all
1347 current revisions). Under certain timing circumstances, a data
1348 cache line maintenance operation by MVA targeting an Inner
1349 Shareable memory region may fail to proceed up to either the
1350 Point of Coherency or to the Point of Unification of the
1351 system. This workaround adds a DSB instruction before the
1352 relevant cache maintenance functions and sets a specific bit
1353 in the diagnostic control register of the SCU.
1354
Linus Torvalds1da177e2005-04-16 15:20:36 -07001355endmenu
1356
1357source "arch/arm/common/Kconfig"
1358
Linus Torvalds1da177e2005-04-16 15:20:36 -07001359menu "Bus support"
1360
1361config ARM_AMBA
1362 bool
1363
1364config ISA
1365 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001366 help
1367 Find out whether you have ISA slots on your motherboard. ISA is the
1368 name of a bus system, i.e. the way the CPU talks to the other stuff
1369 inside your box. Other bus systems are PCI, EISA, MicroChannel
1370 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1371 newer boards don't support it. If you have ISA, say Y, otherwise N.
1372
Russell King065909b2006-01-04 15:44:16 +00001373# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001374config ISA_DMA
1375 bool
Russell King065909b2006-01-04 15:44:16 +00001376 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001377
Russell King065909b2006-01-04 15:44:16 +00001378# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001379config ISA_DMA_API
1380 bool
Al Viro5cae8412005-05-04 05:39:22 +01001381
Linus Torvalds1da177e2005-04-16 15:20:36 -07001382config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001383 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001384 help
1385 Find out whether you have a PCI motherboard. PCI is the name of a
1386 bus system, i.e. the way the CPU talks to the other stuff inside
1387 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1388 VESA. If you have PCI, say Y, otherwise N.
1389
Anton Vorontsov52882172010-04-19 13:20:49 +01001390config PCI_DOMAINS
1391 bool
1392 depends on PCI
1393
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001394config PCI_NANOENGINE
1395 bool "BSE nanoEngine PCI support"
1396 depends on SA1100_NANOENGINE
1397 help
1398 Enable PCI on the BSE nanoEngine board.
1399
Matthew Wilcox36e23592007-07-10 10:54:40 -06001400config PCI_SYSCALL
1401 def_bool PCI
1402
Linus Torvalds1da177e2005-04-16 15:20:36 -07001403# Select the host bridge type
1404config PCI_HOST_VIA82C505
1405 bool
1406 depends on PCI && ARCH_SHARK
1407 default y
1408
Mike Rapoporta0113a92007-11-25 08:55:34 +01001409config PCI_HOST_ITE8152
1410 bool
1411 depends on PCI && MACH_ARMCORE
1412 default y
1413 select DMABOUNCE
1414
Linus Torvalds1da177e2005-04-16 15:20:36 -07001415source "drivers/pci/Kconfig"
1416
1417source "drivers/pcmcia/Kconfig"
1418
1419endmenu
1420
1421menu "Kernel Features"
1422
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001423source "kernel/time/Kconfig"
1424
Linus Torvalds1da177e2005-04-16 15:20:36 -07001425config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001426 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001427 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001428 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001429 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001430 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
Kukjin Kim10606aa2011-02-14 15:05:27 +09001431 ARCH_EXYNOS4 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
Arnd Bergmannabc3f122011-11-02 02:46:55 +01001432 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE || ARCH_HIGHBANK || SOC_IMX6Q
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001433 depends on MMU
Jens Axboef6dd9fa52008-06-10 20:48:30 +02001434 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001435 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001436 help
1437 This enables support for systems with more than one CPU. If you have
1438 a system with only one CPU, like most personal computers, say N. If
1439 you have a system with more than one CPU, say Y.
1440
1441 If you say N here, the kernel will run on single and multiprocessor
1442 machines, but will use only one CPU of a multiprocessor machine. If
1443 you say Y here, the kernel will run on many, but not all, single
1444 processor machines. On a single processor machine, the kernel will
1445 run faster if you say N here.
1446
Paul Bolle395cf962011-08-15 02:02:26 +02001447 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001448 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001449 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001450
1451 If you don't know what to do here, say N.
1452
Russell Kingf00ec482010-09-04 10:47:48 +01001453config SMP_ON_UP
1454 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1455 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001456 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001457 default y
1458 help
1459 SMP kernels contain instructions which fail on non-SMP processors.
1460 Enabling this option allows the kernel to modify itself to make
1461 these instructions safe. Disabling it allows about 1K of space
1462 savings.
1463
1464 If you don't know what to do here, say Y.
1465
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001466config ARM_CPU_TOPOLOGY
1467 bool "Support cpu topology definition"
1468 depends on SMP && CPU_V7
1469 default y
1470 help
1471 Support ARM cpu topology definition. The MPIDR register defines
1472 affinity between processors which is then used to describe the cpu
1473 topology of an ARM System.
1474
1475config SCHED_MC
1476 bool "Multi-core scheduler support"
1477 depends on ARM_CPU_TOPOLOGY
1478 help
1479 Multi-core scheduler support improves the CPU scheduler's decision
1480 making when dealing with multi-core CPU chips at a cost of slightly
1481 increased overhead in some places. If unsure say N here.
1482
1483config SCHED_SMT
1484 bool "SMT scheduler support"
1485 depends on ARM_CPU_TOPOLOGY
1486 help
1487 Improves the CPU scheduler's decision making when dealing with
1488 MultiThreading at a cost of slightly increased overhead in some
1489 places. If unsure say N here.
1490
Russell Kinga8cbcd92009-05-16 11:51:14 +01001491config HAVE_ARM_SCU
1492 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001493 help
1494 This option enables support for the ARM system coherency unit
1495
Russell Kingf32f4ce2009-05-16 12:14:21 +01001496config HAVE_ARM_TWD
1497 bool
1498 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001499 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001500 help
1501 This options enables support for the ARM timer and watchdog unit
1502
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001503choice
1504 prompt "Memory split"
1505 default VMSPLIT_3G
1506 help
1507 Select the desired split between kernel and user memory.
1508
1509 If you are not absolutely sure what you are doing, leave this
1510 option alone!
1511
1512 config VMSPLIT_3G
1513 bool "3G/1G user/kernel split"
1514 config VMSPLIT_2G
1515 bool "2G/2G user/kernel split"
1516 config VMSPLIT_1G
1517 bool "1G/3G user/kernel split"
1518endchoice
1519
1520config PAGE_OFFSET
1521 hex
1522 default 0x40000000 if VMSPLIT_1G
1523 default 0x80000000 if VMSPLIT_2G
1524 default 0xC0000000
1525
Linus Torvalds1da177e2005-04-16 15:20:36 -07001526config NR_CPUS
1527 int "Maximum number of CPUs (2-32)"
1528 range 2 32
1529 depends on SMP
1530 default "4"
1531
Russell Kinga054a812005-11-02 22:24:33 +00001532config HOTPLUG_CPU
1533 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1534 depends on SMP && HOTPLUG && EXPERIMENTAL
1535 help
1536 Say Y here to experiment with turning CPUs off and on. CPUs
1537 can be controlled through /sys/devices/system/cpu.
1538
Russell King37ee16a2005-11-08 19:08:05 +00001539config LOCAL_TIMERS
1540 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001541 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001542 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001543 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001544 help
1545 Enable support for local timers on SMP platforms, rather then the
1546 legacy IPI broadcast method. Local timers allows the system
1547 accounting to be spread across the timer interval, preventing a
1548 "thundering herd" at every timer tick.
1549
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001550source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001551
Russell Kingf8065812006-03-02 22:41:59 +00001552config HZ
1553 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001554 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001555 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001556 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001557 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001558 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001559 default 100
1560
Catalin Marinas16c79652009-07-24 12:33:02 +01001561config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001562 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001563 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001564 select AEABI
1565 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001566 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001567 help
1568 By enabling this option, the kernel will be compiled in
1569 Thumb-2 mode. A compiler/assembler that understand the unified
1570 ARM-Thumb syntax is needed.
1571
1572 If unsure, say N.
1573
Dave Martin6f685c52011-03-03 11:41:12 +01001574config THUMB2_AVOID_R_ARM_THM_JUMP11
1575 bool "Work around buggy Thumb-2 short branch relocations in gas"
1576 depends on THUMB2_KERNEL && MODULES
1577 default y
1578 help
1579 Various binutils versions can resolve Thumb-2 branches to
1580 locally-defined, preemptible global symbols as short-range "b.n"
1581 branch instructions.
1582
1583 This is a problem, because there's no guarantee the final
1584 destination of the symbol, or any candidate locations for a
1585 trampoline, are within range of the branch. For this reason, the
1586 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1587 relocation in modules at all, and it makes little sense to add
1588 support.
1589
1590 The symptom is that the kernel fails with an "unsupported
1591 relocation" error when loading some modules.
1592
1593 Until fixed tools are available, passing
1594 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1595 code which hits this problem, at the cost of a bit of extra runtime
1596 stack usage in some cases.
1597
1598 The problem is described in more detail at:
1599 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1600
1601 Only Thumb-2 kernels are affected.
1602
1603 Unless you are sure your tools don't have this problem, say Y.
1604
Catalin Marinas0becb082009-07-24 12:32:53 +01001605config ARM_ASM_UNIFIED
1606 bool
1607
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001608config AEABI
1609 bool "Use the ARM EABI to compile the kernel"
1610 help
1611 This option allows for the kernel to be compiled using the latest
1612 ARM ABI (aka EABI). This is only useful if you are using a user
1613 space environment that is also compiled with EABI.
1614
1615 Since there are major incompatibilities between the legacy ABI and
1616 EABI, especially with regard to structure member alignment, this
1617 option also changes the kernel syscall calling convention to
1618 disambiguate both ABIs and allow for backward compatibility support
1619 (selected with CONFIG_OABI_COMPAT).
1620
1621 To use this you need GCC version 4.0.0 or later.
1622
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001623config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001624 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001625 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001626 default y
1627 help
1628 This option preserves the old syscall interface along with the
1629 new (ARM EABI) one. It also provides a compatibility layer to
1630 intercept syscalls that have structure arguments which layout
1631 in memory differs between the legacy ABI and the new ARM EABI
1632 (only for non "thumb" binaries). This option adds a tiny
1633 overhead to all syscalls and produces a slightly larger kernel.
1634 If you know you'll be using only pure EABI user space then you
1635 can say N here. If this option is not selected and you attempt
1636 to execute a legacy ABI binary then the result will be
1637 UNPREDICTABLE (in fact it can be predicted that it won't work
1638 at all). If in doubt say Y.
1639
Mel Gormaneb335752009-05-13 17:34:48 +01001640config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001641 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001642
Russell King05944d72006-11-30 20:43:51 +00001643config ARCH_SPARSEMEM_ENABLE
1644 bool
1645
Russell King07a2f732008-10-01 21:39:58 +01001646config ARCH_SPARSEMEM_DEFAULT
1647 def_bool ARCH_SPARSEMEM_ENABLE
1648
Russell King05944d72006-11-30 20:43:51 +00001649config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001650 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001651
Will Deacon7b7bf492011-05-19 13:21:14 +01001652config HAVE_ARCH_PFN_VALID
1653 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1654
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001655config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001656 bool "High Memory Support"
1657 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001658 help
1659 The address space of ARM processors is only 4 Gigabytes large
1660 and it has to accommodate user address space, kernel address
1661 space as well as some memory mapped IO. That means that, if you
1662 have a large amount of physical memory and/or IO, not all of the
1663 memory can be "permanently mapped" by the kernel. The physical
1664 memory that is not permanently mapped is called "high memory".
1665
1666 Depending on the selected kernel/user memory split, minimum
1667 vmalloc space and actual amount of RAM, you may not need this
1668 option which should result in a slightly faster kernel.
1669
1670 If unsure, say n.
1671
Russell King65cec8e2009-08-17 20:02:06 +01001672config HIGHPTE
1673 bool "Allocate 2nd-level pagetables from highmem"
1674 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001675
Jamie Iles1b8873a2010-02-02 20:25:44 +01001676config HW_PERF_EVENTS
1677 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001678 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001679 default y
1680 help
1681 Enable hardware performance counter support for perf events. If
1682 disabled, perf events will use software events only.
1683
Dave Hansen3f22ab22005-06-23 00:07:43 -07001684source "mm/Kconfig"
1685
Magnus Dammc1b2d972010-07-05 10:00:11 +01001686config FORCE_MAX_ZONEORDER
1687 int "Maximum zone order" if ARCH_SHMOBILE
1688 range 11 64 if ARCH_SHMOBILE
1689 default "9" if SA1111
1690 default "11"
1691 help
1692 The kernel memory allocator divides physically contiguous memory
1693 blocks into "zones", where each zone is a power of two number of
1694 pages. This option selects the largest power of two that the kernel
1695 keeps in the memory allocator. If you need to allocate very large
1696 blocks of physically contiguous memory, then you may need to
1697 increase this value.
1698
1699 This config option is actually maximum order plus one. For example,
1700 a value of 11 means that the largest free memory block is 2^10 pages.
1701
Linus Torvalds1da177e2005-04-16 15:20:36 -07001702config LEDS
1703 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5b2008-04-22 01:43:27 +01001704 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001705 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001706 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1707 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001708 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001709 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001710 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001711 help
1712 If you say Y here, the LEDs on your machine will be used
1713 to provide useful information about your current system status.
1714
1715 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1716 be able to select which LEDs are active using the options below. If
1717 you are compiling a kernel for the EBSA-110 or the LART however, the
1718 red LED will simply flash regularly to indicate that the system is
1719 still functional. It is safe to say Y here if you have a CATS
1720 system, but the driver will do nothing.
1721
1722config LEDS_TIMER
1723 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001724 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1725 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001726 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001727 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001728 default y if ARCH_EBSA110
1729 help
1730 If you say Y here, one of the system LEDs (the green one on the
1731 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1732 will flash regularly to indicate that the system is still
1733 operational. This is mainly useful to kernel hackers who are
1734 debugging unstable kernels.
1735
1736 The LART uses the same LED for both Timer LED and CPU usage LED
1737 functions. You may choose to use both, but the Timer LED function
1738 will overrule the CPU usage LED.
1739
1740config LEDS_CPU
1741 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001742 !ARCH_OMAP) \
1743 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1744 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001745 depends on LEDS
1746 help
1747 If you say Y here, the red LED will be used to give a good real
1748 time indication of CPU usage, by lighting whenever the idle task
1749 is not currently executing.
1750
1751 The LART uses the same LED for both Timer LED and CPU usage LED
1752 functions. You may choose to use both, but the Timer LED function
1753 will overrule the CPU usage LED.
1754
1755config ALIGNMENT_TRAP
1756 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001757 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001758 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001759 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001760 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001761 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001762 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1763 address divisible by 4. On 32-bit ARM processors, these non-aligned
1764 fetch/store instructions will be emulated in software if you say
1765 here, which has a severe performance impact. This is necessary for
1766 correct operation of some network protocols. With an IP-only
1767 configuration it is safe to say N, otherwise say Y.
1768
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001769config UACCESS_WITH_MEMCPY
1770 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1771 depends on MMU && EXPERIMENTAL
1772 default y if CPU_FEROCEON
1773 help
1774 Implement faster copy_to_user and clear_user methods for CPU
1775 cores where a 8-word STM instruction give significantly higher
1776 memory write throughput than a sequence of individual 32bit stores.
1777
1778 A possible side effect is a slight increase in scheduling latency
1779 between threads sharing the same address space if they invoke
1780 such copy operations with large buffers.
1781
1782 However, if the CPU data cache is using a write-allocate mode,
1783 this option is unlikely to provide any performance gain.
1784
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001785config SECCOMP
1786 bool
1787 prompt "Enable seccomp to safely compute untrusted bytecode"
1788 ---help---
1789 This kernel feature is useful for number crunching applications
1790 that may need to compute untrusted bytecode during their
1791 execution. By using pipes or other transports made available to
1792 the process as file descriptors supporting the read/write
1793 syscalls, it's possible to isolate those applications in
1794 their own address space using seccomp. Once seccomp is
1795 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1796 and the task is only allowed to execute a few safe syscalls
1797 defined by each seccomp mode.
1798
Nicolas Pitrec743f382010-05-24 23:55:42 -04001799config CC_STACKPROTECTOR
1800 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001801 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001802 help
1803 This option turns on the -fstack-protector GCC feature. This
1804 feature puts, at the beginning of functions, a canary value on
1805 the stack just before the return address, and validates
1806 the value just before actually returning. Stack based buffer
1807 overflows (that need to overwrite this return address) now also
1808 overwrite the canary, which gets detected and the attack is then
1809 neutralized via a kernel panic.
1810 This feature requires gcc version 4.2 or above.
1811
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001812config DEPRECATED_PARAM_STRUCT
1813 bool "Provide old way to pass kernel parameters"
1814 help
1815 This was deprecated in 2001 and announced to live on for 5 years.
1816 Some old boot loaders still use this way.
1817
Linus Torvalds1da177e2005-04-16 15:20:36 -07001818endmenu
1819
1820menu "Boot options"
1821
Grant Likely9eb8f672011-04-28 14:27:20 -06001822config USE_OF
1823 bool "Flattened Device Tree support"
1824 select OF
1825 select OF_EARLY_FLATTREE
Grant Likely08a543a2011-07-26 03:19:06 -06001826 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001827 help
1828 Include support for flattened device tree machine descriptions.
1829
Linus Torvalds1da177e2005-04-16 15:20:36 -07001830# Compressed boot loader in ROM. Yes, we really want to ask about
1831# TEXT and BSS so we preserve their values in the config files.
1832config ZBOOT_ROM_TEXT
1833 hex "Compressed ROM boot loader base address"
1834 default "0"
1835 help
1836 The physical address at which the ROM-able zImage is to be
1837 placed in the target. Platforms which normally make use of
1838 ROM-able zImage formats normally set this to a suitable
1839 value in their defconfig file.
1840
1841 If ZBOOT_ROM is not enabled, this has no effect.
1842
1843config ZBOOT_ROM_BSS
1844 hex "Compressed ROM boot loader BSS address"
1845 default "0"
1846 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001847 The base address of an area of read/write memory in the target
1848 for the ROM-able zImage which must be available while the
1849 decompressor is running. It must be large enough to hold the
1850 entire decompressed kernel plus an additional 128 KiB.
1851 Platforms which normally make use of ROM-able zImage formats
1852 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001853
1854 If ZBOOT_ROM is not enabled, this has no effect.
1855
1856config ZBOOT_ROM
1857 bool "Compressed boot loader in ROM/flash"
1858 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1859 help
1860 Say Y here if you intend to execute your compressed kernel image
1861 (zImage) directly from ROM or flash. If unsure, say N.
1862
Simon Horman090ab3f2011-04-26 06:29:53 +01001863choice
1864 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1865 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1866 default ZBOOT_ROM_NONE
1867 help
1868 Include experimental SD/MMC loading code in the ROM-able zImage.
1869 With this enabled it is possible to write the the ROM-able zImage
1870 kernel image to an MMC or SD card and boot the kernel straight
1871 from the reset vector. At reset the processor Mask ROM will load
1872 the first part of the the ROM-able zImage which in turn loads the
1873 rest the kernel image to RAM.
1874
1875config ZBOOT_ROM_NONE
1876 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1877 help
1878 Do not load image from SD or MMC
1879
Simon Hormanf45b1142011-01-11 04:01:08 +01001880config ZBOOT_ROM_MMCIF
1881 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001882 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001883 Load image from MMCIF hardware block.
1884
1885config ZBOOT_ROM_SH_MOBILE_SDHI
1886 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1887 help
1888 Load image from SDHI hardware block
1889
1890endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001891
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001892config ARM_APPENDED_DTB
1893 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1894 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1895 help
1896 With this option, the boot code will look for a device tree binary
1897 (DTB) appended to zImage
1898 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1899
1900 This is meant as a backward compatibility convenience for those
1901 systems with a bootloader that can't be upgraded to accommodate
1902 the documented boot protocol using a device tree.
1903
1904 Beware that there is very little in terms of protection against
1905 this option being confused by leftover garbage in memory that might
1906 look like a DTB header after a reboot if no actual DTB is appended
1907 to zImage. Do not leave this option active in a production kernel
1908 if you don't intend to always append a DTB. Proper passing of the
1909 location into r2 of a bootloader provided DTB is always preferable
1910 to this option.
1911
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001912config ARM_ATAG_DTB_COMPAT
1913 bool "Supplement the appended DTB with traditional ATAG information"
1914 depends on ARM_APPENDED_DTB
1915 help
1916 Some old bootloaders can't be updated to a DTB capable one, yet
1917 they provide ATAGs with memory configuration, the ramdisk address,
1918 the kernel cmdline string, etc. Such information is dynamically
1919 provided by the bootloader and can't always be stored in a static
1920 DTB. To allow a device tree enabled kernel to be used with such
1921 bootloaders, this option allows zImage to extract the information
1922 from the ATAG list and store it at run time into the appended DTB.
1923
Linus Torvalds1da177e2005-04-16 15:20:36 -07001924config CMDLINE
1925 string "Default kernel command string"
1926 default ""
1927 help
1928 On some architectures (EBSA110 and CATS), there is currently no way
1929 for the boot loader to pass arguments to the kernel. For these
1930 architectures, you should supply some command-line options at build
1931 time by entering them here. As a minimum, you should specify the
1932 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1933
Victor Boivie4394c122011-05-04 17:07:55 +01001934choice
1935 prompt "Kernel command line type" if CMDLINE != ""
1936 default CMDLINE_FROM_BOOTLOADER
1937
1938config CMDLINE_FROM_BOOTLOADER
1939 bool "Use bootloader kernel arguments if available"
1940 help
1941 Uses the command-line options passed by the boot loader. If
1942 the boot loader doesn't provide any, the default kernel command
1943 string provided in CMDLINE will be used.
1944
1945config CMDLINE_EXTEND
1946 bool "Extend bootloader kernel arguments"
1947 help
1948 The command-line arguments provided by the boot loader will be
1949 appended to the default kernel command string.
1950
Alexander Holler92d20402010-02-16 19:04:53 +01001951config CMDLINE_FORCE
1952 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001953 help
1954 Always use the default kernel command string, even if the boot
1955 loader passes other arguments to the kernel.
1956 This is useful if you cannot or don't want to change the
1957 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001958endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001959
Linus Torvalds1da177e2005-04-16 15:20:36 -07001960config XIP_KERNEL
1961 bool "Kernel Execute-In-Place from ROM"
1962 depends on !ZBOOT_ROM
1963 help
1964 Execute-In-Place allows the kernel to run from non-volatile storage
1965 directly addressable by the CPU, such as NOR flash. This saves RAM
1966 space since the text section of the kernel is not loaded from flash
1967 to RAM. Read-write sections, such as the data section and stack,
1968 are still copied to RAM. The XIP kernel is not compressed since
1969 it has to run directly from flash, so it will take more space to
1970 store it. The flash address used to link the kernel object files,
1971 and for storing it, is configuration dependent. Therefore, if you
1972 say Y here, you must know the proper physical address where to
1973 store the kernel image depending on your own flash memory usage.
1974
1975 Also note that the make target becomes "make xipImage" rather than
1976 "make zImage" or "make Image". The final kernel binary to put in
1977 ROM memory will be arch/arm/boot/xipImage.
1978
1979 If unsure, say N.
1980
1981config XIP_PHYS_ADDR
1982 hex "XIP Kernel Physical Location"
1983 depends on XIP_KERNEL
1984 default "0x00080000"
1985 help
1986 This is the physical address in your flash memory the kernel will
1987 be linked for and stored to. This address is dependent on your
1988 own flash usage.
1989
Richard Purdiec587e4a2007-02-06 21:29:00 +01001990config KEXEC
1991 bool "Kexec system call (EXPERIMENTAL)"
1992 depends on EXPERIMENTAL
1993 help
1994 kexec is a system call that implements the ability to shutdown your
1995 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001996 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001997 you can start any kernel with it, not just Linux.
1998
1999 It is an ongoing process to be certain the hardware in a machine
2000 is properly shutdown, so do not be surprised if this code does not
2001 initially work for you. It may help to enable device hotplugging
2002 support.
2003
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002004config ATAGS_PROC
2005 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01002006 depends on KEXEC
2007 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002008 help
2009 Should the atags used to boot the kernel be exported in an "atags"
2010 file in procfs. Useful with kexec.
2011
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002012config CRASH_DUMP
2013 bool "Build kdump crash kernel (EXPERIMENTAL)"
2014 depends on EXPERIMENTAL
2015 help
2016 Generate crash dump after being started by kexec. This should
2017 be normally only set in special crash dump kernels which are
2018 loaded in the main kernel with kexec-tools into a specially
2019 reserved region and then later executed after a crash by
2020 kdump/kexec. The crash dump kernel must be compiled to a
2021 memory address not used by the main kernel
2022
2023 For more details see Documentation/kdump/kdump.txt
2024
Eric Miaoe69edc792010-07-05 15:56:50 +02002025config AUTO_ZRELADDR
2026 bool "Auto calculation of the decompressed kernel image address"
2027 depends on !ZBOOT_ROM && !ARCH_U300
2028 help
2029 ZRELADDR is the physical address where the decompressed kernel
2030 image will be placed. If AUTO_ZRELADDR is selected, the address
2031 will be determined at run-time by masking the current IP with
2032 0xf8000000. This assumes the zImage being placed in the first 128MB
2033 from start of memory.
2034
Linus Torvalds1da177e2005-04-16 15:20:36 -07002035endmenu
2036
Russell Kingac9d7ef2008-08-18 17:26:00 +01002037menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002038
Ben Dooks89c52ed2009-07-30 23:23:24 +01002039if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002040
2041source "drivers/cpufreq/Kconfig"
2042
Yong Shen64f102b2010-10-21 21:18:59 +08002043config CPU_FREQ_IMX
2044 tristate "CPUfreq driver for i.MX CPUs"
2045 depends on ARCH_MXC && CPU_FREQ
2046 help
2047 This enables the CPUfreq driver for i.MX CPUs.
2048
Linus Torvalds1da177e2005-04-16 15:20:36 -07002049config CPU_FREQ_SA1100
2050 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002051
2052config CPU_FREQ_SA1110
2053 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002054
2055config CPU_FREQ_INTEGRATOR
2056 tristate "CPUfreq driver for ARM Integrator CPUs"
2057 depends on ARCH_INTEGRATOR && CPU_FREQ
2058 default y
2059 help
2060 This enables the CPUfreq driver for ARM Integrator CPUs.
2061
2062 For details, take a look at <file:Documentation/cpu-freq>.
2063
2064 If in doubt, say Y.
2065
Russell King9e2697f2007-12-14 13:30:14 +00002066config CPU_FREQ_PXA
2067 bool
2068 depends on CPU_FREQ && ARCH_PXA && PXA25x
2069 default y
Arnd Bergmannca7d1562011-10-01 22:03:51 +02002070 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002071 select CPU_FREQ_DEFAULT_GOV_USERSPACE
2072
Ben Dooks9d56c022009-07-30 23:23:25 +01002073config CPU_FREQ_S3C
2074 bool
2075 help
2076 Internal configuration node for common cpufreq on Samsung SoC
2077
2078config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002079 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002080 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
2081 select CPU_FREQ_S3C
2082 help
2083 This enables the CPUfreq driver for the Samsung S3C24XX family
2084 of CPUs.
2085
2086 For details, take a look at <file:Documentation/cpu-freq>.
2087
2088 If in doubt, say N.
2089
2090config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002091 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002092 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2093 help
2094 Compile in support for changing the PLL frequency from the
2095 S3C24XX series CPUfreq driver. The PLL takes time to settle
2096 after a frequency change, so by default it is not enabled.
2097
2098 This also means that the PLL tables for the selected CPU(s) will
2099 be built which may increase the size of the kernel image.
2100
2101config CPU_FREQ_S3C24XX_DEBUG
2102 bool "Debug CPUfreq Samsung driver core"
2103 depends on CPU_FREQ_S3C24XX
2104 help
2105 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2106
2107config CPU_FREQ_S3C24XX_IODEBUG
2108 bool "Debug CPUfreq Samsung driver IO timing"
2109 depends on CPU_FREQ_S3C24XX
2110 help
2111 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2112
Ben Dookse6d197a2009-07-30 23:23:42 +01002113config CPU_FREQ_S3C24XX_DEBUGFS
2114 bool "Export debugfs for CPUFreq"
2115 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2116 help
2117 Export status information via debugfs.
2118
Linus Torvalds1da177e2005-04-16 15:20:36 -07002119endif
2120
Russell Kingac9d7ef2008-08-18 17:26:00 +01002121source "drivers/cpuidle/Kconfig"
2122
2123endmenu
2124
Linus Torvalds1da177e2005-04-16 15:20:36 -07002125menu "Floating point emulation"
2126
2127comment "At least one emulation must be selected"
2128
2129config FPE_NWFPE
2130 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002131 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002132 ---help---
2133 Say Y to include the NWFPE floating point emulator in the kernel.
2134 This is necessary to run most binaries. Linux does not currently
2135 support floating point hardware so you need to say Y here even if
2136 your machine has an FPA or floating point co-processor podule.
2137
2138 You may say N here if you are going to load the Acorn FPEmulator
2139 early in the bootup.
2140
2141config FPE_NWFPE_XP
2142 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002143 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002144 help
2145 Say Y to include 80-bit support in the kernel floating-point
2146 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2147 Note that gcc does not generate 80-bit operations by default,
2148 so in most cases this option only enlarges the size of the
2149 floating point emulator without any good reason.
2150
2151 You almost surely want to say N here.
2152
2153config FPE_FASTFPE
2154 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002155 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002156 ---help---
2157 Say Y here to include the FAST floating point emulator in the kernel.
2158 This is an experimental much faster emulator which now also has full
2159 precision for the mantissa. It does not support any exceptions.
2160 It is very simple, and approximately 3-6 times faster than NWFPE.
2161
2162 It should be sufficient for most programs. It may be not suitable
2163 for scientific calculations, but you have to check this for yourself.
2164 If you do not feel you need a faster FP emulation you should better
2165 choose NWFPE.
2166
2167config VFP
2168 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002169 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002170 help
2171 Say Y to include VFP support code in the kernel. This is needed
2172 if your hardware includes a VFP unit.
2173
2174 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2175 release notes and additional status information.
2176
2177 Say N if your target does not have VFP hardware.
2178
Catalin Marinas25ebee02007-09-25 15:22:24 +01002179config VFPv3
2180 bool
2181 depends on VFP
2182 default y if CPU_V7
2183
Catalin Marinasb5872db2008-01-10 19:16:17 +01002184config NEON
2185 bool "Advanced SIMD (NEON) Extension support"
2186 depends on VFPv3 && CPU_V7
2187 help
2188 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2189 Extension.
2190
Linus Torvalds1da177e2005-04-16 15:20:36 -07002191endmenu
2192
2193menu "Userspace binary formats"
2194
2195source "fs/Kconfig.binfmt"
2196
2197config ARTHUR
2198 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00002199 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002200 help
2201 Say Y here to include the kernel code necessary if you want to run
2202 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2203 experimental; if this sounds frightening, say N and sleep in peace.
2204 You can also say M here to compile this support as a module (which
2205 will be called arthur).
2206
2207endmenu
2208
2209menu "Power management options"
2210
Russell Kingeceab4a2005-11-15 11:31:41 +00002211source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002212
Johannes Bergf4cb5702007-12-08 02:14:00 +01002213config ARCH_SUSPEND_POSSIBLE
Abhilash Kesavan6b6844d2011-10-04 20:30:22 +09002214 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002215 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
2216 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
Johannes Bergf4cb5702007-12-08 02:14:00 +01002217 def_bool y
2218
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002219config ARM_CPU_SUSPEND
2220 def_bool PM_SLEEP
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"