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Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
David Woodhousee17c6d52008-06-17 12:19:34 +01004 select HAVE_AOUT
Russell King24056f52011-01-03 11:29:28 +00005 select HAVE_DMA_API_DEBUG
Adrian Bunk2064c942008-04-28 23:44:43 +02006 select HAVE_IDE
Russell King2778f622010-07-09 16:27:52 +01007 select HAVE_MEMBLOCK
Alessandro Zummo12b824f2006-03-27 01:16:35 -08008 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +00009 select SYS_SUPPORTS_APM_EMULATION
Russell Kinga41297a2011-01-17 15:48:33 +000010 select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI)
Will Deaconfe166142010-04-30 11:37:51 +010011 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jason Wessel5cbad0e2008-02-20 13:33:40 -060012 select HAVE_ARCH_KGDB
Jon Medhurst856bc352011-06-14 13:09:39 +010013 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080014 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040015 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Rabin Vincent80be7a72010-08-10 19:58:17 +010016 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
17 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Rabin Vincent0e341af2010-11-06 23:03:53 +053018 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040019 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080020 select HAVE_KERNEL_GZIP
21 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010022 select HAVE_KERNEL_LZMA
Peter Zijlstrae360adb2010-10-14 14:01:34 +080023 select HAVE_IRQ_WORK
Jamie Iles7ada1892010-02-02 20:24:58 +010024 select HAVE_PERF_EVENTS
25 select PERF_USE_VMALLOC
Will Deacone513f8b2010-06-25 12:24:53 +010026 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kinge399b1a2011-01-17 15:08:32 +000027 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
Rabin Vincented604532010-11-30 17:36:48 +010028 select HAVE_C_RECORDMCOUNT
Lennert Buytenheke2a93ec2010-11-29 10:06:57 +010029 select HAVE_GENERIC_HARDIRQS
30 select HAVE_SPARSE_IRQ
Thomas Gleixner25a56622011-03-24 12:02:11 +010031 select GENERIC_IRQ_SHOW
Santosh Shilimkar1fb902632011-09-10 11:30:28 +053032 select CPU_PM if (SUSPEND || CPU_IDLE)
Linus Torvalds1da177e2005-04-16 15:20:36 -070033 help
34 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000035 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070036 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000037 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070038 Europe. There is an ARM Linux project with a web page at
39 <http://www.arm.linux.org.uk/>.
40
Russell King74facff2011-06-02 11:16:22 +010041config ARM_HAS_SG_CHAIN
42 bool
43
Russell King1a189b92008-04-13 21:41:55 +010044config HAVE_PWM
45 bool
46
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010047config MIGHT_HAVE_PCI
48 bool
49
Ralf Baechle75e71532007-02-09 17:08:58 +000050config SYS_SUPPORTS_APM_EMULATION
51 bool
52
Russell King112f38a42010-12-15 19:23:07 +000053config HAVE_SCHED_CLOCK
54 bool
55
David Brownell0a938b92007-03-05 00:30:18 -080056config GENERIC_GPIO
57 bool
David Brownell0a938b92007-03-05 00:30:18 -080058
John Stultz5cfc8ee2010-03-24 00:22:36 +000059config ARCH_USES_GETTIMEOFFSET
60 bool
61 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010062
Kevin Hilman0567a0c2007-03-13 20:29:24 +010063config GENERIC_CLOCKEVENTS
64 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010065
Catalin Marinasa8655e82008-02-04 17:30:57 +010066config GENERIC_CLOCKEVENTS_BROADCAST
67 bool
68 depends on GENERIC_CLOCKEVENTS
Russell King5388a6b2010-07-26 13:19:43 +010069 default y if SMP
Catalin Marinasa8655e82008-02-04 17:30:57 +010070
Rob Herringbf9dd362011-03-04 23:51:59 +010071config KTIME_SCALAR
72 bool
73 default y
74
Linus Walleijbc581772009-09-15 17:30:37 +010075config HAVE_TCM
76 bool
77 select GENERIC_ALLOCATOR
78
Russell Kinge119bff2010-01-10 17:23:29 +000079config HAVE_PROC_CPU
80 bool
81
Al Viro5ea81762007-02-11 15:41:31 +000082config NO_IOPORT
83 bool
Al Viro5ea81762007-02-11 15:41:31 +000084
Linus Torvalds1da177e2005-04-16 15:20:36 -070085config EISA
86 bool
87 ---help---
88 The Extended Industry Standard Architecture (EISA) bus was
89 developed as an open alternative to the IBM MicroChannel bus.
90
91 The EISA bus provided some of the features of the IBM MicroChannel
92 bus while maintaining backward compatibility with cards made for
93 the older ISA bus. The EISA bus saw limited use between 1988 and
94 1995 when it was made obsolete by the PCI bus.
95
96 Say Y here if you are building a kernel for an EISA-based machine.
97
98 Otherwise, say N.
99
100config SBUS
101 bool
102
103config MCA
104 bool
105 help
106 MicroChannel Architecture is found in some IBM PS/2 machines and
107 laptops. It is a bus system similar to PCI or ISA. See
108 <file:Documentation/mca.txt> (and especially the web page given
109 there) before attempting to build an MCA bus kernel.
110
Russell Kingf16fb1e2007-04-28 09:59:37 +0100111config STACKTRACE_SUPPORT
112 bool
113 default y
114
Nicolas Pitref76e9152008-04-24 01:31:46 -0400115config HAVE_LATENCYTOP_SUPPORT
116 bool
117 depends on !SMP
118 default y
119
Russell Kingf16fb1e2007-04-28 09:59:37 +0100120config LOCKDEP_SUPPORT
121 bool
122 default y
123
Russell King7ad1bcb2006-08-27 12:07:02 +0100124config TRACE_IRQFLAGS_SUPPORT
125 bool
126 default y
127
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100128config HARDIRQS_SW_RESEND
129 bool
130 default y
131
132config GENERIC_IRQ_PROBE
133 bool
134 default y
135
Nick Piggin95c354f2008-01-30 13:31:20 +0100136config GENERIC_LOCKBREAK
137 bool
138 default y
139 depends on SMP && PREEMPT
140
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141config RWSEM_GENERIC_SPINLOCK
142 bool
143 default y
144
145config RWSEM_XCHGADD_ALGORITHM
146 bool
147
David Howellsf0d1b0b2006-12-08 02:37:49 -0800148config ARCH_HAS_ILOG2_U32
149 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800150
151config ARCH_HAS_ILOG2_U64
152 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800153
Ben Dooks89c52ed2009-07-30 23:23:24 +0100154config ARCH_HAS_CPUFREQ
155 bool
156 help
157 Internal node to signify that the ARCH has CPUFREQ support
158 and that the relevant menu configurations are displayed for
159 it.
160
Kevin Hilmanc7b0aff2010-10-01 22:13:47 +0100161config ARCH_HAS_CPU_IDLE_WAIT
162 def_bool y
163
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800164config GENERIC_HWEIGHT
165 bool
166 default y
167
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168config GENERIC_CALIBRATE_DELAY
169 bool
170 default y
171
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100172config ARCH_MAY_HAVE_PC_FDC
173 bool
174
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800175config ZONE_DMA
176 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800177
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800178config NEED_DMA_MAP_STATE
179 def_bool y
180
Linus Torvalds1da177e2005-04-16 15:20:36 -0700181config GENERIC_ISA_DMA
182 bool
183
Linus Torvalds1da177e2005-04-16 15:20:36 -0700184config FIQ
185 bool
186
Al Viro034d2f52005-12-19 16:27:59 -0500187config ARCH_MTD_XIP
188 bool
189
Hyok S. Choic760fc12006-03-27 15:18:50 +0100190config VECTORS_BASE
191 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900192 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100193 default DRAM_BASE if REMAP_VECTORS_TO_RAM
194 default 0x00000000
195 help
196 The base address of exception vectors.
197
Russell Kingdc21af92011-01-04 19:09:43 +0000198config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100199 bool "Patch physical to virtual translations at runtime" if EMBEDDED
200 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100201 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000202 depends on !ARCH_REALVIEW || !SPARSEMEM
203 help
Russell King111e9a52011-05-12 10:02:42 +0100204 Patch phys-to-virt and virt-to-phys translation functions at
205 boot and module load time according to the position of the
206 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000207
Russell King111e9a52011-05-12 10:02:42 +0100208 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100209 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000210
Russell Kingc1beced2011-08-10 10:23:45 +0100211 Only disable this option if you know that you do not require
212 this feature (eg, building a kernel for a single machine) and
213 you need to shrink the kernel to the minimal size.
214
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400215config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400216 bool
Russell King111e9a52011-05-12 10:02:42 +0100217 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400218 Select this when mach/memory.h is required to provide special
219 definitions for this platform. The need for mach/memory.h should
220 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400221
222config PHYS_OFFSET
223 hex "Physical address of main memory"
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400224 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400225 help
226 Please provide the physical address corresponding to the
227 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000228
Linus Torvalds1da177e2005-04-16 15:20:36 -0700229source "init/Kconfig"
230
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700231source "kernel/Kconfig.freezer"
232
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233menu "System Type"
234
Hyok S. Choi3c427972009-07-24 12:35:00 +0100235config MMU
236 bool "MMU-based Paged Memory Management Support"
237 default y
238 help
239 Select if you want MMU-based virtualised addressing space
240 support by paged memory management. If unsure, say 'Y'.
241
Russell Kingccf50e22010-03-15 19:03:06 +0000242#
243# The "ARM system type" choice list is ordered alphabetically by option
244# text. Please add new entries in the option alphabetic order.
245#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246choice
247 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000248 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700249
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100250config ARCH_INTEGRATOR
251 bool "ARM Ltd. Integrator family"
252 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100253 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100254 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900255 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000256 select ICST
Russell King13edd862010-01-15 21:49:23 +0000257 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000258 select PLAT_VERSATILE
Russell Kingc41b16f2011-01-19 15:32:15 +0000259 select PLAT_VERSATILE_FPGA_IRQ
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400260 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100261 help
262 Support for ARM's Integrator platform.
263
264config ARCH_REALVIEW
265 bool "ARM Ltd. RealView family"
266 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100267 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900268 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000269 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100270 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100271 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000272 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000273 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000274 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100275 select GPIO_PL061 if GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400276 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100277 help
278 This enables support for ARM Ltd RealView boards.
279
280config ARCH_VERSATILE
281 bool "ARM Ltd. Versatile family"
282 select ARM_AMBA
283 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100284 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900285 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000286 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100287 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100288 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000289 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000290 select PLAT_VERSATILE_CLCD
Russell Kingc41b16f2011-01-19 15:32:15 +0000291 select PLAT_VERSATILE_FPGA_IRQ
Russell Kinge3887712010-01-14 13:30:16 +0000292 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100293 help
294 This enables support for ARM Ltd Versatile board.
295
Russell Kingceade892010-02-11 21:44:53 +0000296config ARCH_VEXPRESS
297 bool "ARM Ltd. Versatile Express family"
298 select ARCH_WANT_OPTIONAL_GPIOLIB
299 select ARM_AMBA
300 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100301 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900302 select HAVE_MACH_CLKDEV
Russell Kingceade892010-02-11 21:44:53 +0000303 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000304 select HAVE_CLK
Nick Bowler95c34f82011-01-21 15:51:06 +0100305 select HAVE_PATA_PLATFORM
Russell Kingceade892010-02-11 21:44:53 +0000306 select ICST
307 select PLAT_VERSATILE
Russell King0fb44b92011-01-18 20:13:51 +0000308 select PLAT_VERSATILE_CLCD
Russell Kingceade892010-02-11 21:44:53 +0000309 help
310 This enables support for the ARM Ltd Versatile Express boards.
311
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100312config ARCH_AT91
313 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100314 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700315 select HAVE_CLK
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100316 select CLKDEV_LOOKUP
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100317 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100318 This enables support for systems based on the Atmel AT91RM9200,
319 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100320
Russell Kingccf50e22010-03-15 19:03:06 +0000321config ARCH_BCMRING
322 bool "Broadcom BCMRING"
323 depends on MMU
324 select CPU_V6
325 select ARM_AMBA
Russell King82d63732011-05-12 13:43:39 +0100326 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100327 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000328 select GENERIC_CLOCKEVENTS
329 select ARCH_WANT_OPTIONAL_GPIOLIB
330 help
331 Support for Broadcom's BCMRing platform.
332
Rob Herring220e6cf2011-06-07 10:02:55 -0500333config ARCH_HIGHBANK
334 bool "Calxeda Highbank-based"
335 select ARCH_WANT_OPTIONAL_GPIOLIB
336 select ARM_AMBA
337 select ARM_GIC
338 select ARM_TIMER_SP804
339 select CLKDEV_LOOKUP
340 select CPU_V7
341 select GENERIC_CLOCKEVENTS
342 select HAVE_ARM_SCU
343 select USE_OF
344 help
345 Support for the Calxeda Highbank SoC based boards.
346
Linus Torvalds1da177e2005-04-16 15:20:36 -0700347config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100348 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000349 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000350 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400351 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000352 help
353 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700354
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300355config ARCH_CNS3XXX
356 bool "Cavium Networks CNS3XXX family"
Imre Kaloz00d27112011-07-07 12:19:09 +0200357 select CPU_V6K
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300358 select GENERIC_CLOCKEVENTS
359 select ARM_GIC
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100360 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400361 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300362 help
363 Support for Cavium Networks CNS3XXX platform.
364
Russell King788c9702009-04-26 14:21:59 +0100365config ARCH_GEMINI
366 bool "Cortina Systems Gemini"
367 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100368 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000369 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100370 help
371 Support for the Cortina Systems Gemini family SoCs
372
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200373config ARCH_PRIMA2
374 bool "CSR SiRFSoC PRIMA2 ARM Cortex A9 Platform"
375 select CPU_V7
376 select GENERIC_TIME
377 select NO_IOPORT
378 select GENERIC_CLOCKEVENTS
379 select CLKDEV_LOOKUP
380 select GENERIC_IRQ_CHIP
381 select USE_OF
382 select ZONE_DMA
383 help
384 Support for CSR SiRFSoC ARM Cortex A9 Platform
385
Linus Torvalds1da177e2005-04-16 15:20:36 -0700386config ARCH_EBSA110
387 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000388 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100389 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000390 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000391 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400392 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700393 help
394 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000395 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700396 Ethernet interface, two PCMCIA sockets, two serial ports and a
397 parallel port.
398
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000399config ARCH_EP93XX
400 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000401 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000402 select ARM_AMBA
403 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100404 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700405 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100406 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000407 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400408 select NEED_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000409 help
410 This enables support for the Cirrus EP93xx series of CPUs.
411
Linus Torvalds1da177e2005-04-16 15:20:36 -0700412config ARCH_FOOTBRIDGE
413 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000414 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000416 select GENERIC_CLOCKEVENTS
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400417 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000418 help
419 Support for systems based on the DC21285 companion chip
420 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700421
Russell King788c9702009-04-26 14:21:59 +0100422config ARCH_MXC
423 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100424 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100425 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100426 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100427 select CLKSRC_MMIO
Shawn Guo8b6c44f2011-06-07 13:59:14 +0800428 select GENERIC_IRQ_CHIP
Jan Weitzelc124bef2011-03-17 13:44:30 +0100429 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100430 help
431 Support for Freescale MXC/iMX-based family of processors
432
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800433config ARCH_MXS
434 bool "Freescale MXS-based"
435 select GENERIC_CLOCKEVENTS
436 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100437 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100438 select CLKSRC_MMIO
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800439 help
440 Support for Freescale MXS-based family of processors
441
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100442config ARCH_NETX
443 bool "Hilscher NetX based"
Russell King234b6ced2011-05-08 14:09:47 +0100444 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000445 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100446 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100447 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000448 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100449 This enables support for systems based on the Hilscher NetX Soc
450
451config ARCH_H720X
452 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000453 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100454 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000455 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100456 help
457 This enables support for systems based on the Hynix HMS720x
458
Russell King3b938be2007-05-12 11:25:44 +0100459config ARCH_IOP13XX
460 bool "IOP13xx-based"
461 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000462 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100463 select PLAT_IOP
464 select PCI
465 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100466 select VMSPLIT_1G
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400467 select NEED_MACH_MEMORY_H
Russell King3b938be2007-05-12 11:25:44 +0100468 help
469 Support for Intel's IOP13XX (XScale) family of processors.
470
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100471config ARCH_IOP32X
472 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100473 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000474 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100475 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100476 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100477 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000478 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100479 Support for Intel's 80219 and IOP32X (XScale) family of
480 processors.
481
482config ARCH_IOP33X
483 bool "IOP33x-based"
484 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000485 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100486 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100487 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100488 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100489 help
490 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700491
Russell King3b938be2007-05-12 11:25:44 +0100492config ARCH_IXP23XX
493 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100494 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000495 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100496 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000497 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400498 select NEED_MACH_MEMORY_H
Dan Williams285f5fa2006-12-07 02:59:39 +0100499 help
Russell King3b938be2007-05-12 11:25:44 +0100500 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700501
502config ARCH_IXP2000
503 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100504 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000505 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100506 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000507 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400508 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000509 help
510 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700511
Russell King3b938be2007-05-12 11:25:44 +0100512config ARCH_IXP4XX
513 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100514 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100515 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000516 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100517 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100518 select GENERIC_CLOCKEVENTS
Russell King5b0d4952010-12-15 21:23:13 +0000519 select HAVE_SCHED_CLOCK
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100520 select MIGHT_HAVE_PCI
Russell King485bdde2008-10-17 14:00:43 +0100521 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100522 help
Russell King3b938be2007-05-12 11:25:44 +0100523 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100524
Saeed Bisharaedabd382009-08-06 15:12:43 +0300525config ARCH_DOVE
526 bool "Marvell Dove"
Konstantin Porotchkin7b769bb2011-04-07 13:49:41 +0300527 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300528 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300529 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300530 select GENERIC_CLOCKEVENTS
531 select PLAT_ORION
532 help
533 Support for the Marvell Dove SoC 88AP510
534
Saeed Bishara651c74c2008-06-22 22:45:06 +0200535config ARCH_KIRKWOOD
536 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000537 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200538 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700539 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200540 select GENERIC_CLOCKEVENTS
541 select PLAT_ORION
542 help
543 Support for the following Marvell Kirkwood series SoCs:
544 88F6180, 88F6192 and 88F6281.
545
Kevin Wells40805942010-07-27 08:49:04 -0700546config ARCH_LPC32XX
547 bool "NXP LPC32XX"
Russell King234b6ced2011-05-08 14:09:47 +0100548 select CLKSRC_MMIO
Kevin Wells40805942010-07-27 08:49:04 -0700549 select CPU_ARM926T
550 select ARCH_REQUIRE_GPIOLIB
551 select HAVE_IDE
552 select ARM_AMBA
553 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100554 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700555 select GENERIC_TIME
556 select GENERIC_CLOCKEVENTS
557 help
558 Support for the NXP LPC32XX family of processors
559
Russell King788c9702009-04-26 14:21:59 +0100560config ARCH_MV78XX0
561 bool "Marvell MV78xx0"
562 select CPU_FEROCEON
563 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700564 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100565 select GENERIC_CLOCKEVENTS
566 select PLAT_ORION
567 help
568 Support for the following Marvell MV78xx0 series SoCs:
569 MV781x0, MV782x0.
570
571config ARCH_ORION5X
572 bool "Marvell Orion"
573 depends on MMU
574 select CPU_FEROCEON
575 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700576 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100577 select GENERIC_CLOCKEVENTS
578 select PLAT_ORION
579 help
580 Support for the following Marvell Orion 5x series SoCs:
581 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
582 Orion-2 (5281), Orion-1-90 (6183).
583
584config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500585 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100586 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100587 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100588 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100589 select GENERIC_CLOCKEVENTS
Russell King28bb7bc2010-12-15 21:46:48 +0000590 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100591 select TICK_ONESHOT
592 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400593 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100594 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500595 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100596
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100597config ARCH_KS8695
598 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000599 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100600 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000601 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400602 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100603 help
604 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
605 System-on-Chip devices.
606
Russell King788c9702009-04-26 14:21:59 +0100607config ARCH_W90X900
608 bool "Nuvoton W90X900 CPU"
609 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100610 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100611 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100612 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100613 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200614 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100615 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
616 At present, the w90x900 has been renamed nuc900, regarding
617 the ARM series product line, you can login the following
618 link address to know more.
619
620 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
621 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400622
wanzongshuna62e9032009-12-31 15:06:05 +0100623config ARCH_NUC93X
624 bool "Nuvoton NUC93X CPU"
625 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100626 select CLKDEV_LOOKUP
wanzongshuna62e9032009-12-31 15:06:05 +0100627 help
628 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
629 low-power and high performance MPEG-4/JPEG multimedia controller chip.
630
Erik Gillingc5f80062010-01-21 16:53:02 -0800631config ARCH_TEGRA
632 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000633 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100634 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800635 select GENERIC_TIME
636 select GENERIC_CLOCKEVENTS
637 select GENERIC_GPIO
638 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000639 select HAVE_SCHED_CLOCK
Colin Cross7056d422010-04-22 20:30:13 -0700640 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800641 help
642 This enables support for NVIDIA Tegra based systems (Tegra APX,
643 Tegra 6xx and Tegra 2 series).
644
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100645config ARCH_PNX4008
646 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000647 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100648 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000649 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100650 help
651 This enables support for Philips PNX4008 mobile platform.
652
Linus Torvalds1da177e2005-04-16 15:20:36 -0700653config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700654 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100655 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500656 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100657 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100658 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100659 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700660 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100661 select GENERIC_CLOCKEVENTS
Russell King7ce83012010-12-15 21:48:15 +0000662 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000663 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800664 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800665 select SPARSE_IRQ
Eric Miao4e234cc2011-04-04 15:06:33 +0800666 select AUTO_ZRELADDR
Eric Miao8a97ae22011-05-18 21:30:04 +0800667 select MULTI_IRQ_HANDLER
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000668 help
eric miao2c8086a2007-09-11 19:13:17 -0700669 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700670
Russell King788c9702009-04-26 14:21:59 +0100671config ARCH_MSM
672 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500673 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800674 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700675 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800676 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800677 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800678 Support for Qualcomm MSM/QSD based systems. This runs on the
679 apps processor of the MSM/QSD and depends on a shared memory
680 interface to the modem processor which runs the baseband
681 stack and controls some vital subsystems
682 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800683
Magnus Dammc793c1b2010-02-05 11:14:49 +0000684config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900685 bool "Renesas SH-Mobile / R-Mobile"
686 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900687 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900688 select HAVE_MACH_CLKDEV
Paul Mundt6d72ad32010-11-16 16:10:20 +0900689 select GENERIC_CLOCKEVENTS
690 select NO_IOPORT
691 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000692 select MULTI_IRQ_HANDLER
Rafael J. Wysockie3e01092011-07-01 22:13:56 +0200693 select PM_GENERIC_DOMAINS if PM
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400694 select NEED_MACH_MEMORY_H
Magnus Dammc793c1b2010-02-05 11:14:49 +0000695 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900696 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000697
Linus Torvalds1da177e2005-04-16 15:20:36 -0700698config ARCH_RPC
699 bool "RiscPC"
700 select ARCH_ACORN
701 select FIQ
702 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100703 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100704 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000705 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000706 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100707 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000708 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400709 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700710 help
711 On the Acorn Risc-PC, Linux can support the internal IDE disk and
712 CD-ROM interface, serial and parallel port, and the floppy drive.
713
714config ARCH_SA1100
715 bool "SA1100-based"
Russell King234b6ced2011-05-08 14:09:47 +0100716 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000717 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100718 select ISA
Russell King05944d72006-11-30 20:43:51 +0000719 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500720 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100721 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000722 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100723 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700724 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000725 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100726 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700727 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400728 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000729 help
730 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700731
732config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900733 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800734 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100735 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700736 select HAVE_CLK
Thomas Abrahame83626f2011-06-14 19:12:26 +0900737 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000738 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900739 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700740 help
741 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
742 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000743 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700744
Ben Dooks63b1f512010-04-30 16:32:26 +0900745 Note, the S3C2416 and the S3C2450 are so close that they even share
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300746 the same SoC ID code. This means that there is no separate machine
Ben Dooks63b1f512010-04-30 16:32:26 +0900747 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
748
Ben Dooksa08ab632008-10-21 14:06:39 +0100749config ARCH_S3C64XX
750 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000751 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900752 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900753 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100754 select HAVE_CLK
Thomas Abraham226e85f2011-06-14 19:12:26 +0900755 select CLKDEV_LOOKUP
Ben Dooks89f0ce72010-01-26 15:49:15 +0900756 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000757 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100758 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900759 select ARCH_REQUIRE_GPIOLIB
760 select SAMSUNG_CLKSRC
761 select SAMSUNG_IRQ_VIC_TIMER
762 select SAMSUNG_IRQ_UART
763 select S3C_GPIO_TRACK
764 select S3C_GPIO_PULL_UPDOWN
765 select S3C_GPIO_CFG_S3C24XX
766 select S3C_GPIO_CFG_S3C64XX
767 select S3C_DEV_NAND
768 select USB_ARCH_HAS_OHCI
769 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900770 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900771 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100772 help
773 Samsung S3C64XX series based systems
774
Kukjin Kim49b7a492010-09-07 15:47:18 +0900775config ARCH_S5P64X0
776 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900777 select CPU_V6
778 select GENERIC_GPIO
779 select HAVE_CLK
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900780 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900781 select CLKSRC_MMIO
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900782 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900783 select GENERIC_CLOCKEVENTS
784 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900785 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900786 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900787 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900788 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
789 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900790
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200791config ARCH_S5PC100
792 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900793 select GENERIC_GPIO
794 select HAVE_CLK
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900795 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900796 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100797 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900798 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900799 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900800 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900801 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900802 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200803 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900804
Kukjin Kim170f4e42010-02-24 16:40:44 +0900805config ARCH_S5PV210
806 bool "Samsung S5PV210/S5PC110"
807 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900808 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900809 select ARCH_HAS_HOLES_MEMORYMODEL
Kukjin Kim170f4e42010-02-24 16:40:44 +0900810 select GENERIC_GPIO
811 select HAVE_CLK
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900812 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900813 select CLKSRC_MMIO
Kukjin Kim170f4e42010-02-24 16:40:44 +0900814 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900815 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900816 select GENERIC_CLOCKEVENTS
817 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900818 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900819 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900820 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400821 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900822 help
823 Samsung S5PV210/S5PC110 series based systems
824
Kukjin Kim10606aa2011-02-14 15:05:27 +0900825config ARCH_EXYNOS4
826 bool "Samsung EXYNOS4"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900827 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900828 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900829 select ARCH_HAS_HOLES_MEMORYMODEL
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900830 select GENERIC_GPIO
831 select HAVE_CLK
Thomas Abrahambadc4f22011-06-14 19:12:27 +0900832 select CLKDEV_LOOKUP
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900833 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900834 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900835 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900836 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900837 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400838 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900839 help
Kukjin Kim10606aa2011-02-14 15:05:27 +0900840 Samsung EXYNOS4 series based systems
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900841
Linus Torvalds1da177e2005-04-16 15:20:36 -0700842config ARCH_SHARK
843 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000844 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100845 select ISA
846 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100847 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100848 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000849 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400850 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000851 help
852 Support for the StrongARM based Digital DNARD machine, also known
853 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700854
Hans J. Koch83ef3332010-09-17 18:13:56 +0200855config ARCH_TCC_926
856 bool "Telechips TCC ARM926-based systems"
Russell King234b6ced2011-05-08 14:09:47 +0100857 select CLKSRC_MMIO
Hans J. Koch83ef3332010-09-17 18:13:56 +0200858 select CPU_ARM926T
859 select HAVE_CLK
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100860 select CLKDEV_LOOKUP
Hans J. Koch83ef3332010-09-17 18:13:56 +0200861 select GENERIC_CLOCKEVENTS
862 help
863 Support for Telechips TCC ARM926-based systems.
864
Linus Walleijd98aac72009-04-27 10:21:46 +0100865config ARCH_U300
866 bool "ST-Ericsson U300 Series"
867 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100868 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100869 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000870 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100871 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100872 select ARM_AMBA
873 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100874 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100875 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900876 select HAVE_MACH_CLKDEV
Linus Walleijd98aac72009-04-27 10:21:46 +0100877 select GENERIC_GPIO
Linus Walleijcc890cd2011-09-08 09:04:51 +0100878 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400879 select NEED_MACH_MEMORY_H
Linus Walleijd98aac72009-04-27 10:21:46 +0100880 help
881 Support for ST-Ericsson U300 series mobile platforms.
882
Russell Kingccf50e22010-03-15 19:03:06 +0000883config ARCH_U8500
884 bool "ST-Ericsson U8500 Series"
885 select CPU_V7
886 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000887 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100888 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100889 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100890 select ARCH_HAS_CPUFREQ
Russell Kingccf50e22010-03-15 19:03:06 +0000891 help
892 Support for ST-Ericsson's Ux500 architecture
893
894config ARCH_NOMADIK
895 bool "STMicroelectronics Nomadik"
896 select ARM_AMBA
897 select ARM_VIC
898 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100899 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000900 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000901 select ARCH_REQUIRE_GPIOLIB
902 help
903 Support for the Nomadik platform by ST-Ericsson
904
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100905config ARCH_DAVINCI
906 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100907 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700908 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100909 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700910 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100911 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700912 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100913 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530914 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100915 help
916 Support for TI's DaVinci platform.
917
Russell King3b938be2007-05-12 11:25:44 +0100918config ARCH_OMAP
919 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700920 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700921 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100922 select ARCH_HAS_CPUFREQ
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700923 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700924 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000925 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800926 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100927 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200928 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100929
viresh kumarcee37e52010-04-01 12:31:05 +0100930config PLAT_SPEAR
931 bool "ST SPEAr"
932 select ARM_AMBA
933 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100934 select CLKDEV_LOOKUP
Russell Kingd6e15d72011-05-08 17:10:14 +0100935 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100936 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100937 select HAVE_CLK
938 help
939 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
940
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100941config ARCH_VT8500
942 bool "VIA/WonderMedia 85xx"
943 select CPU_ARM926T
944 select GENERIC_GPIO
945 select ARCH_HAS_CPUFREQ
946 select GENERIC_CLOCKEVENTS
947 select ARCH_REQUIRE_GPIOLIB
948 select HAVE_PWM
949 help
950 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +0800951
John Linnb85a3ef2011-06-20 11:47:27 -0600952config ARCH_ZYNQ
953 bool "Xilinx Zynq ARM Cortex A9 Platform"
Binghua Duan02c981c2011-07-08 17:40:12 +0800954 select CPU_V7
955 select GENERIC_TIME
Binghua Duan02c981c2011-07-08 17:40:12 +0800956 select GENERIC_CLOCKEVENTS
957 select CLKDEV_LOOKUP
John Linnb85a3ef2011-06-20 11:47:27 -0600958 select ARM_GIC
959 select ARM_AMBA
960 select ICST
Binghua Duan02c981c2011-07-08 17:40:12 +0800961 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +0800962 help
John Linnb85a3ef2011-06-20 11:47:27 -0600963 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -0700964endchoice
965
Russell Kingccf50e22010-03-15 19:03:06 +0000966#
967# This is sorted alphabetically by mach-* pathname. However, plat-*
968# Kconfigs may be included either alphabetically (according to the
969# plat- suffix) or along side the corresponding mach-* source.
970#
Russell King95b8f202010-01-14 11:43:54 +0000971source "arch/arm/mach-at91/Kconfig"
972
973source "arch/arm/mach-bcmring/Kconfig"
974
Linus Torvalds1da177e2005-04-16 15:20:36 -0700975source "arch/arm/mach-clps711x/Kconfig"
976
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300977source "arch/arm/mach-cns3xxx/Kconfig"
978
Russell King95b8f202010-01-14 11:43:54 +0000979source "arch/arm/mach-davinci/Kconfig"
980
981source "arch/arm/mach-dove/Kconfig"
982
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000983source "arch/arm/mach-ep93xx/Kconfig"
984
Linus Torvalds1da177e2005-04-16 15:20:36 -0700985source "arch/arm/mach-footbridge/Kconfig"
986
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200987source "arch/arm/mach-gemini/Kconfig"
988
Russell King95b8f202010-01-14 11:43:54 +0000989source "arch/arm/mach-h720x/Kconfig"
990
Linus Torvalds1da177e2005-04-16 15:20:36 -0700991source "arch/arm/mach-integrator/Kconfig"
992
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100993source "arch/arm/mach-iop32x/Kconfig"
994
995source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700996
Dan Williams285f5fa2006-12-07 02:59:39 +0100997source "arch/arm/mach-iop13xx/Kconfig"
998
Linus Torvalds1da177e2005-04-16 15:20:36 -0700999source "arch/arm/mach-ixp4xx/Kconfig"
1000
1001source "arch/arm/mach-ixp2000/Kconfig"
1002
Lennert Buytenhekc4713072006-03-28 21:18:54 +01001003source "arch/arm/mach-ixp23xx/Kconfig"
1004
Russell King95b8f202010-01-14 11:43:54 +00001005source "arch/arm/mach-kirkwood/Kconfig"
1006
1007source "arch/arm/mach-ks8695/Kconfig"
1008
Kevin Wells40805942010-07-27 08:49:04 -07001009source "arch/arm/mach-lpc32xx/Kconfig"
1010
Russell King95b8f202010-01-14 11:43:54 +00001011source "arch/arm/mach-msm/Kconfig"
1012
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001013source "arch/arm/mach-mv78xx0/Kconfig"
1014
Russell King95b8f202010-01-14 11:43:54 +00001015source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001016
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001017source "arch/arm/mach-mxs/Kconfig"
1018
Russell King95b8f202010-01-14 11:43:54 +00001019source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001020
Russell King95b8f202010-01-14 11:43:54 +00001021source "arch/arm/mach-nomadik/Kconfig"
1022source "arch/arm/plat-nomadik/Kconfig"
1023
Russell Kingd91a89102010-02-04 18:13:17 +00001024source "arch/arm/mach-nuc93x/Kconfig"
1025
Tony Lindgrend48af152005-07-10 19:58:17 +01001026source "arch/arm/plat-omap/Kconfig"
1027
1028source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001029
Tony Lindgren1dbae812005-11-10 14:26:51 +00001030source "arch/arm/mach-omap2/Kconfig"
1031
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001032source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001033
Russell King95b8f202010-01-14 11:43:54 +00001034source "arch/arm/mach-pxa/Kconfig"
1035source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001036
Russell King95b8f202010-01-14 11:43:54 +00001037source "arch/arm/mach-mmp/Kconfig"
1038
1039source "arch/arm/mach-realview/Kconfig"
1040
1041source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001042
Ben Dookscf383672009-11-10 00:14:58 +00001043source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001044source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001045source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001046
viresh kumarcee37e52010-04-01 12:31:05 +01001047source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001048
Hans J. Koch83ef3332010-09-17 18:13:56 +02001049source "arch/arm/plat-tcc/Kconfig"
1050
Ben Dooksa21765a2007-02-11 18:31:01 +01001051if ARCH_S3C2410
Linus Torvalds1da177e2005-04-16 15:20:36 -07001052source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001053source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +09001054source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001055source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +01001056source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001057endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001058
Ben Dooksa08ab632008-10-21 14:06:39 +01001059if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001060source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001061endif
1062
Kukjin Kim49b7a492010-09-07 15:47:18 +09001063source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001064
Byungho Min5a7652f2009-06-23 21:39:42 +09001065source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001066
Kukjin Kim170f4e42010-02-24 16:40:44 +09001067source "arch/arm/mach-s5pv210/Kconfig"
1068
Kukjin Kim10606aa2011-02-14 15:05:27 +09001069source "arch/arm/mach-exynos4/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001070
Russell King882d01f2010-03-02 23:40:15 +00001071source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001072
Erik Gillingc5f80062010-01-21 16:53:02 -08001073source "arch/arm/mach-tegra/Kconfig"
1074
Russell King95b8f202010-01-14 11:43:54 +00001075source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001076
Russell King95b8f202010-01-14 11:43:54 +00001077source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001078
1079source "arch/arm/mach-versatile/Kconfig"
1080
Russell Kingceade892010-02-11 21:44:53 +00001081source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001082source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001083
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001084source "arch/arm/mach-vt8500/Kconfig"
1085
wanzongshun7ec80dd2008-12-03 03:55:38 +01001086source "arch/arm/mach-w90x900/Kconfig"
1087
Linus Torvalds1da177e2005-04-16 15:20:36 -07001088# Definitions to make life easier
1089config ARCH_ACORN
1090 bool
1091
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001092config PLAT_IOP
1093 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001094 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001095 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001096
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001097config PLAT_ORION
1098 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001099 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001100 select GENERIC_IRQ_CHIP
Russell Kingf06a1622010-12-15 21:55:06 +00001101 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001102
Eric Miaobd5ce432009-01-20 12:06:01 +08001103config PLAT_PXA
1104 bool
1105
Russell Kingf4b8b312010-01-14 12:48:06 +00001106config PLAT_VERSATILE
1107 bool
1108
Russell Kinge3887712010-01-14 13:30:16 +00001109config ARM_TIMER_SP804
1110 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001111 select CLKSRC_MMIO
Russell Kinge3887712010-01-14 13:30:16 +00001112
Linus Torvalds1da177e2005-04-16 15:20:36 -07001113source arch/arm/mm/Kconfig
1114
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001115config IWMMXT
1116 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001117 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1118 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001119 help
1120 Enable support for iWMMXt context switching at run time if
1121 running on a CPU that supports it.
1122
Linus Torvalds1da177e2005-04-16 15:20:36 -07001123# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1124config XSCALE_PMU
1125 bool
1126 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1127 default y
1128
Jamie Iles0f4f0672010-02-02 20:23:15 +01001129config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001130 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001131 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001132 default y
1133 bool
1134
eric miao52108642010-12-13 09:42:34 +01001135config MULTI_IRQ_HANDLER
1136 bool
1137 help
1138 Allow each machine to specify it's own IRQ handler at run time.
1139
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001140if !MMU
1141source "arch/arm/Kconfig-nommu"
1142endif
1143
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001144config ARM_ERRATA_411920
1145 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001146 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001147 help
1148 Invalidation of the Instruction Cache operation can
1149 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1150 It does not affect the MPCore. This option enables the ARM Ltd.
1151 recommended workaround.
1152
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001153config ARM_ERRATA_430973
1154 bool "ARM errata: Stale prediction on replaced interworking branch"
1155 depends on CPU_V7
1156 help
1157 This option enables the workaround for the 430973 Cortex-A8
1158 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1159 interworking branch is replaced with another code sequence at the
1160 same virtual address, whether due to self-modifying code or virtual
1161 to physical address re-mapping, Cortex-A8 does not recover from the
1162 stale interworking branch prediction. This results in Cortex-A8
1163 executing the new code sequence in the incorrect ARM or Thumb state.
1164 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1165 and also flushes the branch target cache at every context switch.
1166 Note that setting specific bits in the ACTLR register may not be
1167 available in non-secure mode.
1168
Catalin Marinas855c5512009-04-30 17:06:15 +01001169config ARM_ERRATA_458693
1170 bool "ARM errata: Processor deadlock when a false hazard is created"
1171 depends on CPU_V7
1172 help
1173 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1174 erratum. For very specific sequences of memory operations, it is
1175 possible for a hazard condition intended for a cache line to instead
1176 be incorrectly associated with a different cache line. This false
1177 hazard might then cause a processor deadlock. The workaround enables
1178 the L1 caching of the NEON accesses and disables the PLD instruction
1179 in the ACTLR register. Note that setting specific bits in the ACTLR
1180 register may not be available in non-secure mode.
1181
Catalin Marinas0516e462009-04-30 17:06:20 +01001182config ARM_ERRATA_460075
1183 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1184 depends on CPU_V7
1185 help
1186 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1187 erratum. Any asynchronous access to the L2 cache may encounter a
1188 situation in which recent store transactions to the L2 cache are lost
1189 and overwritten with stale memory contents from external memory. The
1190 workaround disables the write-allocate mode for the L2 cache via the
1191 ACTLR register. Note that setting specific bits in the ACTLR register
1192 may not be available in non-secure mode.
1193
Will Deacon9f050272010-09-14 09:51:43 +01001194config ARM_ERRATA_742230
1195 bool "ARM errata: DMB operation may be faulty"
1196 depends on CPU_V7 && SMP
1197 help
1198 This option enables the workaround for the 742230 Cortex-A9
1199 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1200 between two write operations may not ensure the correct visibility
1201 ordering of the two writes. This workaround sets a specific bit in
1202 the diagnostic register of the Cortex-A9 which causes the DMB
1203 instruction to behave as a DSB, ensuring the correct behaviour of
1204 the two writes.
1205
Will Deacona672e992010-09-14 09:53:02 +01001206config ARM_ERRATA_742231
1207 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1208 depends on CPU_V7 && SMP
1209 help
1210 This option enables the workaround for the 742231 Cortex-A9
1211 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1212 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1213 accessing some data located in the same cache line, may get corrupted
1214 data due to bad handling of the address hazard when the line gets
1215 replaced from one of the CPUs at the same time as another CPU is
1216 accessing it. This workaround sets specific bits in the diagnostic
1217 register of the Cortex-A9 which reduces the linefill issuing
1218 capabilities of the processor.
1219
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001220config PL310_ERRATA_588369
1221 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001222 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001223 help
1224 The PL310 L2 cache controller implements three types of Clean &
1225 Invalidate maintenance operations: by Physical Address
1226 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1227 They are architecturally defined to behave as the execution of a
1228 clean operation followed immediately by an invalidate operation,
1229 both performing to the same memory location. This functionality
1230 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001231 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001232
1233config ARM_ERRATA_720789
1234 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1235 depends on CPU_V7 && SMP
1236 help
1237 This option enables the workaround for the 720789 Cortex-A9 (prior to
1238 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1239 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1240 As a consequence of this erratum, some TLB entries which should be
1241 invalidated are not, resulting in an incoherency in the system page
1242 tables. The workaround changes the TLB flushing routines to invalidate
1243 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001244
Russell King1f0090a2011-03-16 23:35:25 +00001245config PL310_ERRATA_727915
1246 bool "Background Clean & Invalidate by Way operation can cause data corruption"
1247 depends on CACHE_L2X0
1248 help
1249 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1250 operation (offset 0x7FC). This operation runs in background so that
1251 PL310 can handle normal accesses while it is in progress. Under very
1252 rare circumstances, due to this erratum, write data can be lost when
1253 PL310 treats a cacheable write transaction during a Clean &
1254 Invalidate by Way operation.
1255
Will Deacon475d92f2010-09-28 14:02:02 +01001256config ARM_ERRATA_743622
1257 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1258 depends on CPU_V7
1259 help
1260 This option enables the workaround for the 743622 Cortex-A9
1261 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1262 optimisation in the Cortex-A9 Store Buffer may lead to data
1263 corruption. This workaround sets a specific bit in the diagnostic
1264 register of the Cortex-A9 which disables the Store Buffer
1265 optimisation, preventing the defect from occurring. This has no
1266 visible impact on the overall performance or power consumption of the
1267 processor.
1268
Will Deacon9a27c272011-02-18 16:36:35 +01001269config ARM_ERRATA_751472
1270 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
1271 depends on CPU_V7 && SMP
1272 help
1273 This option enables the workaround for the 751472 Cortex-A9 (prior
1274 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1275 completion of a following broadcasted operation if the second
1276 operation is received by a CPU before the ICIALLUIS has completed,
1277 potentially leading to corrupted entries in the cache or TLB.
1278
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001279config ARM_ERRATA_753970
1280 bool "ARM errata: cache sync operation may be faulty"
1281 depends on CACHE_PL310
1282 help
1283 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1284
1285 Under some condition the effect of cache sync operation on
1286 the store buffer still remains when the operation completes.
1287 This means that the store buffer is always asked to drain and
1288 this prevents it from merging any further writes. The workaround
1289 is to replace the normal offset of cache sync operation (0x730)
1290 by another offset targeting an unmapped PL310 register 0x740.
1291 This has the same effect as the cache sync operation: store buffer
1292 drain and waiting for all buffers empty.
1293
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001294config ARM_ERRATA_754322
1295 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1296 depends on CPU_V7
1297 help
1298 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1299 r3p*) erratum. A speculative memory access may cause a page table walk
1300 which starts prior to an ASID switch but completes afterwards. This
1301 can populate the micro-TLB with a stale entry which may be hit with
1302 the new ASID. This workaround places two dsb instructions in the mm
1303 switching code so that no page table walks can cross the ASID switch.
1304
Will Deacon5dab26af2011-03-04 12:38:54 +01001305config ARM_ERRATA_754327
1306 bool "ARM errata: no automatic Store Buffer drain"
1307 depends on CPU_V7 && SMP
1308 help
1309 This option enables the workaround for the 754327 Cortex-A9 (prior to
1310 r2p0) erratum. The Store Buffer does not have any automatic draining
1311 mechanism and therefore a livelock may occur if an external agent
1312 continuously polls a memory location waiting to observe an update.
1313 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1314 written polling loops from denying visibility of updates to memory.
1315
Catalin Marinas145e10e2011-08-15 11:04:41 +01001316config ARM_ERRATA_364296
1317 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1318 depends on CPU_V6 && !SMP
1319 help
1320 This options enables the workaround for the 364296 ARM1136
1321 r0p2 erratum (possible cache data corruption with
1322 hit-under-miss enabled). It sets the undocumented bit 31 in
1323 the auxiliary control register and the FI bit in the control
1324 register, thus disabling hit-under-miss without putting the
1325 processor into full low interrupt latency mode. ARM11MPCore
1326 is not affected.
1327
Will Deaconf630c1b2011-09-15 11:45:15 +01001328config ARM_ERRATA_764369
1329 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1330 depends on CPU_V7 && SMP
1331 help
1332 This option enables the workaround for erratum 764369
1333 affecting Cortex-A9 MPCore with two or more processors (all
1334 current revisions). Under certain timing circumstances, a data
1335 cache line maintenance operation by MVA targeting an Inner
1336 Shareable memory region may fail to proceed up to either the
1337 Point of Coherency or to the Point of Unification of the
1338 system. This workaround adds a DSB instruction before the
1339 relevant cache maintenance functions and sets a specific bit
1340 in the diagnostic control register of the SCU.
1341
Linus Torvalds1da177e2005-04-16 15:20:36 -07001342endmenu
1343
1344source "arch/arm/common/Kconfig"
1345
Linus Torvalds1da177e2005-04-16 15:20:36 -07001346menu "Bus support"
1347
1348config ARM_AMBA
1349 bool
1350
1351config ISA
1352 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001353 help
1354 Find out whether you have ISA slots on your motherboard. ISA is the
1355 name of a bus system, i.e. the way the CPU talks to the other stuff
1356 inside your box. Other bus systems are PCI, EISA, MicroChannel
1357 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1358 newer boards don't support it. If you have ISA, say Y, otherwise N.
1359
Russell King065909b2006-01-04 15:44:16 +00001360# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001361config ISA_DMA
1362 bool
Russell King065909b2006-01-04 15:44:16 +00001363 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001364
Russell King065909b2006-01-04 15:44:16 +00001365# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001366config ISA_DMA_API
1367 bool
Al Viro5cae8412005-05-04 05:39:22 +01001368
Linus Torvalds1da177e2005-04-16 15:20:36 -07001369config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001370 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001371 help
1372 Find out whether you have a PCI motherboard. PCI is the name of a
1373 bus system, i.e. the way the CPU talks to the other stuff inside
1374 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1375 VESA. If you have PCI, say Y, otherwise N.
1376
Anton Vorontsov52882172010-04-19 13:20:49 +01001377config PCI_DOMAINS
1378 bool
1379 depends on PCI
1380
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001381config PCI_NANOENGINE
1382 bool "BSE nanoEngine PCI support"
1383 depends on SA1100_NANOENGINE
1384 help
1385 Enable PCI on the BSE nanoEngine board.
1386
Matthew Wilcox36e23592007-07-10 10:54:40 -06001387config PCI_SYSCALL
1388 def_bool PCI
1389
Linus Torvalds1da177e2005-04-16 15:20:36 -07001390# Select the host bridge type
1391config PCI_HOST_VIA82C505
1392 bool
1393 depends on PCI && ARCH_SHARK
1394 default y
1395
Mike Rapoporta0113a92007-11-25 08:55:34 +01001396config PCI_HOST_ITE8152
1397 bool
1398 depends on PCI && MACH_ARMCORE
1399 default y
1400 select DMABOUNCE
1401
Linus Torvalds1da177e2005-04-16 15:20:36 -07001402source "drivers/pci/Kconfig"
1403
1404source "drivers/pcmcia/Kconfig"
1405
1406endmenu
1407
1408menu "Kernel Features"
1409
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001410source "kernel/time/Kconfig"
1411
Linus Torvalds1da177e2005-04-16 15:20:36 -07001412config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001413 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001414 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001415 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001416 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001417 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
Kukjin Kim10606aa2011-02-14 15:05:27 +09001418 ARCH_EXYNOS4 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
Paul Mundte9d728f2011-01-07 10:51:35 +09001419 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001420 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001421 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001422 help
1423 This enables support for systems with more than one CPU. If you have
1424 a system with only one CPU, like most personal computers, say N. If
1425 you have a system with more than one CPU, say Y.
1426
1427 If you say N here, the kernel will run on single and multiprocessor
1428 machines, but will use only one CPU of a multiprocessor machine. If
1429 you say Y here, the kernel will run on many, but not all, single
1430 processor machines. On a single processor machine, the kernel will
1431 run faster if you say N here.
1432
Adrian Bunk03502fa2008-02-03 15:50:21 +02001433 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001434 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001435 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001436
1437 If you don't know what to do here, say N.
1438
Russell Kingf00ec482010-09-04 10:47:48 +01001439config SMP_ON_UP
1440 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1441 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001442 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001443 default y
1444 help
1445 SMP kernels contain instructions which fail on non-SMP processors.
1446 Enabling this option allows the kernel to modify itself to make
1447 these instructions safe. Disabling it allows about 1K of space
1448 savings.
1449
1450 If you don't know what to do here, say Y.
1451
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001452config ARM_CPU_TOPOLOGY
1453 bool "Support cpu topology definition"
1454 depends on SMP && CPU_V7
1455 default y
1456 help
1457 Support ARM cpu topology definition. The MPIDR register defines
1458 affinity between processors which is then used to describe the cpu
1459 topology of an ARM System.
1460
1461config SCHED_MC
1462 bool "Multi-core scheduler support"
1463 depends on ARM_CPU_TOPOLOGY
1464 help
1465 Multi-core scheduler support improves the CPU scheduler's decision
1466 making when dealing with multi-core CPU chips at a cost of slightly
1467 increased overhead in some places. If unsure say N here.
1468
1469config SCHED_SMT
1470 bool "SMT scheduler support"
1471 depends on ARM_CPU_TOPOLOGY
1472 help
1473 Improves the CPU scheduler's decision making when dealing with
1474 MultiThreading at a cost of slightly increased overhead in some
1475 places. If unsure say N here.
1476
Russell Kinga8cbcd92009-05-16 11:51:14 +01001477config HAVE_ARM_SCU
1478 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001479 help
1480 This option enables support for the ARM system coherency unit
1481
Russell Kingf32f4ce2009-05-16 12:14:21 +01001482config HAVE_ARM_TWD
1483 bool
1484 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001485 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001486 help
1487 This options enables support for the ARM timer and watchdog unit
1488
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001489choice
1490 prompt "Memory split"
1491 default VMSPLIT_3G
1492 help
1493 Select the desired split between kernel and user memory.
1494
1495 If you are not absolutely sure what you are doing, leave this
1496 option alone!
1497
1498 config VMSPLIT_3G
1499 bool "3G/1G user/kernel split"
1500 config VMSPLIT_2G
1501 bool "2G/2G user/kernel split"
1502 config VMSPLIT_1G
1503 bool "1G/3G user/kernel split"
1504endchoice
1505
1506config PAGE_OFFSET
1507 hex
1508 default 0x40000000 if VMSPLIT_1G
1509 default 0x80000000 if VMSPLIT_2G
1510 default 0xC0000000
1511
Linus Torvalds1da177e2005-04-16 15:20:36 -07001512config NR_CPUS
1513 int "Maximum number of CPUs (2-32)"
1514 range 2 32
1515 depends on SMP
1516 default "4"
1517
Russell Kinga054a812005-11-02 22:24:33 +00001518config HOTPLUG_CPU
1519 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1520 depends on SMP && HOTPLUG && EXPERIMENTAL
1521 help
1522 Say Y here to experiment with turning CPUs off and on. CPUs
1523 can be controlled through /sys/devices/system/cpu.
1524
Russell King37ee16a2005-11-08 19:08:05 +00001525config LOCAL_TIMERS
1526 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001527 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001528 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001529 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001530 help
1531 Enable support for local timers on SMP platforms, rather then the
1532 legacy IPI broadcast method. Local timers allows the system
1533 accounting to be spread across the timer interval, preventing a
1534 "thundering herd" at every timer tick.
1535
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001536source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001537
Russell Kingf8065812006-03-02 22:41:59 +00001538config HZ
1539 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001540 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001541 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001542 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001543 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001544 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001545 default 100
1546
Catalin Marinas16c79652009-07-24 12:33:02 +01001547config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001548 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001549 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001550 select AEABI
1551 select ARM_ASM_UNIFIED
1552 help
1553 By enabling this option, the kernel will be compiled in
1554 Thumb-2 mode. A compiler/assembler that understand the unified
1555 ARM-Thumb syntax is needed.
1556
1557 If unsure, say N.
1558
Dave Martin6f685c52011-03-03 11:41:12 +01001559config THUMB2_AVOID_R_ARM_THM_JUMP11
1560 bool "Work around buggy Thumb-2 short branch relocations in gas"
1561 depends on THUMB2_KERNEL && MODULES
1562 default y
1563 help
1564 Various binutils versions can resolve Thumb-2 branches to
1565 locally-defined, preemptible global symbols as short-range "b.n"
1566 branch instructions.
1567
1568 This is a problem, because there's no guarantee the final
1569 destination of the symbol, or any candidate locations for a
1570 trampoline, are within range of the branch. For this reason, the
1571 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1572 relocation in modules at all, and it makes little sense to add
1573 support.
1574
1575 The symptom is that the kernel fails with an "unsupported
1576 relocation" error when loading some modules.
1577
1578 Until fixed tools are available, passing
1579 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1580 code which hits this problem, at the cost of a bit of extra runtime
1581 stack usage in some cases.
1582
1583 The problem is described in more detail at:
1584 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1585
1586 Only Thumb-2 kernels are affected.
1587
1588 Unless you are sure your tools don't have this problem, say Y.
1589
Catalin Marinas0becb082009-07-24 12:32:53 +01001590config ARM_ASM_UNIFIED
1591 bool
1592
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001593config AEABI
1594 bool "Use the ARM EABI to compile the kernel"
1595 help
1596 This option allows for the kernel to be compiled using the latest
1597 ARM ABI (aka EABI). This is only useful if you are using a user
1598 space environment that is also compiled with EABI.
1599
1600 Since there are major incompatibilities between the legacy ABI and
1601 EABI, especially with regard to structure member alignment, this
1602 option also changes the kernel syscall calling convention to
1603 disambiguate both ABIs and allow for backward compatibility support
1604 (selected with CONFIG_OABI_COMPAT).
1605
1606 To use this you need GCC version 4.0.0 or later.
1607
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001608config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001609 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001610 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001611 default y
1612 help
1613 This option preserves the old syscall interface along with the
1614 new (ARM EABI) one. It also provides a compatibility layer to
1615 intercept syscalls that have structure arguments which layout
1616 in memory differs between the legacy ABI and the new ARM EABI
1617 (only for non "thumb" binaries). This option adds a tiny
1618 overhead to all syscalls and produces a slightly larger kernel.
1619 If you know you'll be using only pure EABI user space then you
1620 can say N here. If this option is not selected and you attempt
1621 to execute a legacy ABI binary then the result will be
1622 UNPREDICTABLE (in fact it can be predicted that it won't work
1623 at all). If in doubt say Y.
1624
Mel Gormaneb335752009-05-13 17:34:48 +01001625config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001626 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001627
Russell King05944d72006-11-30 20:43:51 +00001628config ARCH_SPARSEMEM_ENABLE
1629 bool
1630
Russell King07a2f732008-10-01 21:39:58 +01001631config ARCH_SPARSEMEM_DEFAULT
1632 def_bool ARCH_SPARSEMEM_ENABLE
1633
Russell King05944d72006-11-30 20:43:51 +00001634config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001635 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001636
Will Deacon7b7bf492011-05-19 13:21:14 +01001637config HAVE_ARCH_PFN_VALID
1638 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1639
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001640config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001641 bool "High Memory Support"
1642 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001643 help
1644 The address space of ARM processors is only 4 Gigabytes large
1645 and it has to accommodate user address space, kernel address
1646 space as well as some memory mapped IO. That means that, if you
1647 have a large amount of physical memory and/or IO, not all of the
1648 memory can be "permanently mapped" by the kernel. The physical
1649 memory that is not permanently mapped is called "high memory".
1650
1651 Depending on the selected kernel/user memory split, minimum
1652 vmalloc space and actual amount of RAM, you may not need this
1653 option which should result in a slightly faster kernel.
1654
1655 If unsure, say n.
1656
Russell King65cec8e2009-08-17 20:02:06 +01001657config HIGHPTE
1658 bool "Allocate 2nd-level pagetables from highmem"
1659 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001660
Jamie Iles1b8873a2010-02-02 20:25:44 +01001661config HW_PERF_EVENTS
1662 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001663 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001664 default y
1665 help
1666 Enable hardware performance counter support for perf events. If
1667 disabled, perf events will use software events only.
1668
Dave Hansen3f22ab22005-06-23 00:07:43 -07001669source "mm/Kconfig"
1670
Magnus Dammc1b2d972010-07-05 10:00:11 +01001671config FORCE_MAX_ZONEORDER
1672 int "Maximum zone order" if ARCH_SHMOBILE
1673 range 11 64 if ARCH_SHMOBILE
1674 default "9" if SA1111
1675 default "11"
1676 help
1677 The kernel memory allocator divides physically contiguous memory
1678 blocks into "zones", where each zone is a power of two number of
1679 pages. This option selects the largest power of two that the kernel
1680 keeps in the memory allocator. If you need to allocate very large
1681 blocks of physically contiguous memory, then you may need to
1682 increase this value.
1683
1684 This config option is actually maximum order plus one. For example,
1685 a value of 11 means that the largest free memory block is 2^10 pages.
1686
Linus Torvalds1da177e2005-04-16 15:20:36 -07001687config LEDS
1688 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001689 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001690 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001691 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1692 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001693 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001694 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001695 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001696 help
1697 If you say Y here, the LEDs on your machine will be used
1698 to provide useful information about your current system status.
1699
1700 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1701 be able to select which LEDs are active using the options below. If
1702 you are compiling a kernel for the EBSA-110 or the LART however, the
1703 red LED will simply flash regularly to indicate that the system is
1704 still functional. It is safe to say Y here if you have a CATS
1705 system, but the driver will do nothing.
1706
1707config LEDS_TIMER
1708 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001709 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1710 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001711 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001712 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001713 default y if ARCH_EBSA110
1714 help
1715 If you say Y here, one of the system LEDs (the green one on the
1716 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1717 will flash regularly to indicate that the system is still
1718 operational. This is mainly useful to kernel hackers who are
1719 debugging unstable kernels.
1720
1721 The LART uses the same LED for both Timer LED and CPU usage LED
1722 functions. You may choose to use both, but the Timer LED function
1723 will overrule the CPU usage LED.
1724
1725config LEDS_CPU
1726 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001727 !ARCH_OMAP) \
1728 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1729 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001730 depends on LEDS
1731 help
1732 If you say Y here, the red LED will be used to give a good real
1733 time indication of CPU usage, by lighting whenever the idle task
1734 is not currently executing.
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 ALIGNMENT_TRAP
1741 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001742 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001743 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001744 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001745 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001746 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001747 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1748 address divisible by 4. On 32-bit ARM processors, these non-aligned
1749 fetch/store instructions will be emulated in software if you say
1750 here, which has a severe performance impact. This is necessary for
1751 correct operation of some network protocols. With an IP-only
1752 configuration it is safe to say N, otherwise say Y.
1753
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001754config UACCESS_WITH_MEMCPY
1755 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1756 depends on MMU && EXPERIMENTAL
1757 default y if CPU_FEROCEON
1758 help
1759 Implement faster copy_to_user and clear_user methods for CPU
1760 cores where a 8-word STM instruction give significantly higher
1761 memory write throughput than a sequence of individual 32bit stores.
1762
1763 A possible side effect is a slight increase in scheduling latency
1764 between threads sharing the same address space if they invoke
1765 such copy operations with large buffers.
1766
1767 However, if the CPU data cache is using a write-allocate mode,
1768 this option is unlikely to provide any performance gain.
1769
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001770config SECCOMP
1771 bool
1772 prompt "Enable seccomp to safely compute untrusted bytecode"
1773 ---help---
1774 This kernel feature is useful for number crunching applications
1775 that may need to compute untrusted bytecode during their
1776 execution. By using pipes or other transports made available to
1777 the process as file descriptors supporting the read/write
1778 syscalls, it's possible to isolate those applications in
1779 their own address space using seccomp. Once seccomp is
1780 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1781 and the task is only allowed to execute a few safe syscalls
1782 defined by each seccomp mode.
1783
Nicolas Pitrec743f382010-05-24 23:55:42 -04001784config CC_STACKPROTECTOR
1785 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001786 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001787 help
1788 This option turns on the -fstack-protector GCC feature. This
1789 feature puts, at the beginning of functions, a canary value on
1790 the stack just before the return address, and validates
1791 the value just before actually returning. Stack based buffer
1792 overflows (that need to overwrite this return address) now also
1793 overwrite the canary, which gets detected and the attack is then
1794 neutralized via a kernel panic.
1795 This feature requires gcc version 4.2 or above.
1796
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001797config DEPRECATED_PARAM_STRUCT
1798 bool "Provide old way to pass kernel parameters"
1799 help
1800 This was deprecated in 2001 and announced to live on for 5 years.
1801 Some old boot loaders still use this way.
1802
Linus Torvalds1da177e2005-04-16 15:20:36 -07001803endmenu
1804
1805menu "Boot options"
1806
Grant Likely9eb8f672011-04-28 14:27:20 -06001807config USE_OF
1808 bool "Flattened Device Tree support"
1809 select OF
1810 select OF_EARLY_FLATTREE
Grant Likely08a543a2011-07-26 03:19:06 -06001811 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001812 help
1813 Include support for flattened device tree machine descriptions.
1814
Linus Torvalds1da177e2005-04-16 15:20:36 -07001815# Compressed boot loader in ROM. Yes, we really want to ask about
1816# TEXT and BSS so we preserve their values in the config files.
1817config ZBOOT_ROM_TEXT
1818 hex "Compressed ROM boot loader base address"
1819 default "0"
1820 help
1821 The physical address at which the ROM-able zImage is to be
1822 placed in the target. Platforms which normally make use of
1823 ROM-able zImage formats normally set this to a suitable
1824 value in their defconfig file.
1825
1826 If ZBOOT_ROM is not enabled, this has no effect.
1827
1828config ZBOOT_ROM_BSS
1829 hex "Compressed ROM boot loader BSS address"
1830 default "0"
1831 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001832 The base address of an area of read/write memory in the target
1833 for the ROM-able zImage which must be available while the
1834 decompressor is running. It must be large enough to hold the
1835 entire decompressed kernel plus an additional 128 KiB.
1836 Platforms which normally make use of ROM-able zImage formats
1837 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001838
1839 If ZBOOT_ROM is not enabled, this has no effect.
1840
1841config ZBOOT_ROM
1842 bool "Compressed boot loader in ROM/flash"
1843 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1844 help
1845 Say Y here if you intend to execute your compressed kernel image
1846 (zImage) directly from ROM or flash. If unsure, say N.
1847
Simon Horman090ab3f2011-04-26 06:29:53 +01001848choice
1849 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1850 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1851 default ZBOOT_ROM_NONE
1852 help
1853 Include experimental SD/MMC loading code in the ROM-able zImage.
1854 With this enabled it is possible to write the the ROM-able zImage
1855 kernel image to an MMC or SD card and boot the kernel straight
1856 from the reset vector. At reset the processor Mask ROM will load
1857 the first part of the the ROM-able zImage which in turn loads the
1858 rest the kernel image to RAM.
1859
1860config ZBOOT_ROM_NONE
1861 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1862 help
1863 Do not load image from SD or MMC
1864
Simon Hormanf45b1142011-01-11 04:01:08 +01001865config ZBOOT_ROM_MMCIF
1866 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001867 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001868 Load image from MMCIF hardware block.
1869
1870config ZBOOT_ROM_SH_MOBILE_SDHI
1871 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1872 help
1873 Load image from SDHI hardware block
1874
1875endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001876
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001877config ARM_APPENDED_DTB
1878 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1879 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1880 help
1881 With this option, the boot code will look for a device tree binary
1882 (DTB) appended to zImage
1883 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1884
1885 This is meant as a backward compatibility convenience for those
1886 systems with a bootloader that can't be upgraded to accommodate
1887 the documented boot protocol using a device tree.
1888
1889 Beware that there is very little in terms of protection against
1890 this option being confused by leftover garbage in memory that might
1891 look like a DTB header after a reboot if no actual DTB is appended
1892 to zImage. Do not leave this option active in a production kernel
1893 if you don't intend to always append a DTB. Proper passing of the
1894 location into r2 of a bootloader provided DTB is always preferable
1895 to this option.
1896
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001897config ARM_ATAG_DTB_COMPAT
1898 bool "Supplement the appended DTB with traditional ATAG information"
1899 depends on ARM_APPENDED_DTB
1900 help
1901 Some old bootloaders can't be updated to a DTB capable one, yet
1902 they provide ATAGs with memory configuration, the ramdisk address,
1903 the kernel cmdline string, etc. Such information is dynamically
1904 provided by the bootloader and can't always be stored in a static
1905 DTB. To allow a device tree enabled kernel to be used with such
1906 bootloaders, this option allows zImage to extract the information
1907 from the ATAG list and store it at run time into the appended DTB.
1908
Linus Torvalds1da177e2005-04-16 15:20:36 -07001909config CMDLINE
1910 string "Default kernel command string"
1911 default ""
1912 help
1913 On some architectures (EBSA110 and CATS), there is currently no way
1914 for the boot loader to pass arguments to the kernel. For these
1915 architectures, you should supply some command-line options at build
1916 time by entering them here. As a minimum, you should specify the
1917 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1918
Victor Boivie4394c122011-05-04 17:07:55 +01001919choice
1920 prompt "Kernel command line type" if CMDLINE != ""
1921 default CMDLINE_FROM_BOOTLOADER
1922
1923config CMDLINE_FROM_BOOTLOADER
1924 bool "Use bootloader kernel arguments if available"
1925 help
1926 Uses the command-line options passed by the boot loader. If
1927 the boot loader doesn't provide any, the default kernel command
1928 string provided in CMDLINE will be used.
1929
1930config CMDLINE_EXTEND
1931 bool "Extend bootloader kernel arguments"
1932 help
1933 The command-line arguments provided by the boot loader will be
1934 appended to the default kernel command string.
1935
Alexander Holler92d20402010-02-16 19:04:53 +01001936config CMDLINE_FORCE
1937 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001938 help
1939 Always use the default kernel command string, even if the boot
1940 loader passes other arguments to the kernel.
1941 This is useful if you cannot or don't want to change the
1942 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001943endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001944
Linus Torvalds1da177e2005-04-16 15:20:36 -07001945config XIP_KERNEL
1946 bool "Kernel Execute-In-Place from ROM"
1947 depends on !ZBOOT_ROM
1948 help
1949 Execute-In-Place allows the kernel to run from non-volatile storage
1950 directly addressable by the CPU, such as NOR flash. This saves RAM
1951 space since the text section of the kernel is not loaded from flash
1952 to RAM. Read-write sections, such as the data section and stack,
1953 are still copied to RAM. The XIP kernel is not compressed since
1954 it has to run directly from flash, so it will take more space to
1955 store it. The flash address used to link the kernel object files,
1956 and for storing it, is configuration dependent. Therefore, if you
1957 say Y here, you must know the proper physical address where to
1958 store the kernel image depending on your own flash memory usage.
1959
1960 Also note that the make target becomes "make xipImage" rather than
1961 "make zImage" or "make Image". The final kernel binary to put in
1962 ROM memory will be arch/arm/boot/xipImage.
1963
1964 If unsure, say N.
1965
1966config XIP_PHYS_ADDR
1967 hex "XIP Kernel Physical Location"
1968 depends on XIP_KERNEL
1969 default "0x00080000"
1970 help
1971 This is the physical address in your flash memory the kernel will
1972 be linked for and stored to. This address is dependent on your
1973 own flash usage.
1974
Richard Purdiec587e4a2007-02-06 21:29:00 +01001975config KEXEC
1976 bool "Kexec system call (EXPERIMENTAL)"
1977 depends on EXPERIMENTAL
1978 help
1979 kexec is a system call that implements the ability to shutdown your
1980 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001981 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001982 you can start any kernel with it, not just Linux.
1983
1984 It is an ongoing process to be certain the hardware in a machine
1985 is properly shutdown, so do not be surprised if this code does not
1986 initially work for you. It may help to enable device hotplugging
1987 support.
1988
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001989config ATAGS_PROC
1990 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001991 depends on KEXEC
1992 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001993 help
1994 Should the atags used to boot the kernel be exported in an "atags"
1995 file in procfs. Useful with kexec.
1996
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01001997config CRASH_DUMP
1998 bool "Build kdump crash kernel (EXPERIMENTAL)"
1999 depends on EXPERIMENTAL
2000 help
2001 Generate crash dump after being started by kexec. This should
2002 be normally only set in special crash dump kernels which are
2003 loaded in the main kernel with kexec-tools into a specially
2004 reserved region and then later executed after a crash by
2005 kdump/kexec. The crash dump kernel must be compiled to a
2006 memory address not used by the main kernel
2007
2008 For more details see Documentation/kdump/kdump.txt
2009
Eric Miaoe69edc792010-07-05 15:56:50 +02002010config AUTO_ZRELADDR
2011 bool "Auto calculation of the decompressed kernel image address"
2012 depends on !ZBOOT_ROM && !ARCH_U300
2013 help
2014 ZRELADDR is the physical address where the decompressed kernel
2015 image will be placed. If AUTO_ZRELADDR is selected, the address
2016 will be determined at run-time by masking the current IP with
2017 0xf8000000. This assumes the zImage being placed in the first 128MB
2018 from start of memory.
2019
Linus Torvalds1da177e2005-04-16 15:20:36 -07002020endmenu
2021
Russell Kingac9d7ef2008-08-18 17:26:00 +01002022menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002023
Ben Dooks89c52ed2009-07-30 23:23:24 +01002024if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002025
2026source "drivers/cpufreq/Kconfig"
2027
Yong Shen64f102b2010-10-21 21:18:59 +08002028config CPU_FREQ_IMX
2029 tristate "CPUfreq driver for i.MX CPUs"
2030 depends on ARCH_MXC && CPU_FREQ
2031 help
2032 This enables the CPUfreq driver for i.MX CPUs.
2033
Linus Torvalds1da177e2005-04-16 15:20:36 -07002034config CPU_FREQ_SA1100
2035 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002036
2037config CPU_FREQ_SA1110
2038 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002039
2040config CPU_FREQ_INTEGRATOR
2041 tristate "CPUfreq driver for ARM Integrator CPUs"
2042 depends on ARCH_INTEGRATOR && CPU_FREQ
2043 default y
2044 help
2045 This enables the CPUfreq driver for ARM Integrator CPUs.
2046
2047 For details, take a look at <file:Documentation/cpu-freq>.
2048
2049 If in doubt, say Y.
2050
Russell King9e2697f2007-12-14 13:30:14 +00002051config CPU_FREQ_PXA
2052 bool
2053 depends on CPU_FREQ && ARCH_PXA && PXA25x
2054 default y
2055 select CPU_FREQ_DEFAULT_GOV_USERSPACE
2056
Ben Dooks9d56c022009-07-30 23:23:25 +01002057config CPU_FREQ_S3C
2058 bool
2059 help
2060 Internal configuration node for common cpufreq on Samsung SoC
2061
2062config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002063 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002064 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
2065 select CPU_FREQ_S3C
2066 help
2067 This enables the CPUfreq driver for the Samsung S3C24XX family
2068 of CPUs.
2069
2070 For details, take a look at <file:Documentation/cpu-freq>.
2071
2072 If in doubt, say N.
2073
2074config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002075 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002076 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2077 help
2078 Compile in support for changing the PLL frequency from the
2079 S3C24XX series CPUfreq driver. The PLL takes time to settle
2080 after a frequency change, so by default it is not enabled.
2081
2082 This also means that the PLL tables for the selected CPU(s) will
2083 be built which may increase the size of the kernel image.
2084
2085config CPU_FREQ_S3C24XX_DEBUG
2086 bool "Debug CPUfreq Samsung driver core"
2087 depends on CPU_FREQ_S3C24XX
2088 help
2089 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2090
2091config CPU_FREQ_S3C24XX_IODEBUG
2092 bool "Debug CPUfreq Samsung driver IO timing"
2093 depends on CPU_FREQ_S3C24XX
2094 help
2095 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2096
Ben Dookse6d197a2009-07-30 23:23:42 +01002097config CPU_FREQ_S3C24XX_DEBUGFS
2098 bool "Export debugfs for CPUFreq"
2099 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2100 help
2101 Export status information via debugfs.
2102
Linus Torvalds1da177e2005-04-16 15:20:36 -07002103endif
2104
Russell Kingac9d7ef2008-08-18 17:26:00 +01002105source "drivers/cpuidle/Kconfig"
2106
2107endmenu
2108
Linus Torvalds1da177e2005-04-16 15:20:36 -07002109menu "Floating point emulation"
2110
2111comment "At least one emulation must be selected"
2112
2113config FPE_NWFPE
2114 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002115 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002116 ---help---
2117 Say Y to include the NWFPE floating point emulator in the kernel.
2118 This is necessary to run most binaries. Linux does not currently
2119 support floating point hardware so you need to say Y here even if
2120 your machine has an FPA or floating point co-processor podule.
2121
2122 You may say N here if you are going to load the Acorn FPEmulator
2123 early in the bootup.
2124
2125config FPE_NWFPE_XP
2126 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002127 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002128 help
2129 Say Y to include 80-bit support in the kernel floating-point
2130 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2131 Note that gcc does not generate 80-bit operations by default,
2132 so in most cases this option only enlarges the size of the
2133 floating point emulator without any good reason.
2134
2135 You almost surely want to say N here.
2136
2137config FPE_FASTFPE
2138 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002139 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002140 ---help---
2141 Say Y here to include the FAST floating point emulator in the kernel.
2142 This is an experimental much faster emulator which now also has full
2143 precision for the mantissa. It does not support any exceptions.
2144 It is very simple, and approximately 3-6 times faster than NWFPE.
2145
2146 It should be sufficient for most programs. It may be not suitable
2147 for scientific calculations, but you have to check this for yourself.
2148 If you do not feel you need a faster FP emulation you should better
2149 choose NWFPE.
2150
2151config VFP
2152 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002153 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002154 help
2155 Say Y to include VFP support code in the kernel. This is needed
2156 if your hardware includes a VFP unit.
2157
2158 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2159 release notes and additional status information.
2160
2161 Say N if your target does not have VFP hardware.
2162
Catalin Marinas25ebee02007-09-25 15:22:24 +01002163config VFPv3
2164 bool
2165 depends on VFP
2166 default y if CPU_V7
2167
Catalin Marinasb5872db2008-01-10 19:16:17 +01002168config NEON
2169 bool "Advanced SIMD (NEON) Extension support"
2170 depends on VFPv3 && CPU_V7
2171 help
2172 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2173 Extension.
2174
Linus Torvalds1da177e2005-04-16 15:20:36 -07002175endmenu
2176
2177menu "Userspace binary formats"
2178
2179source "fs/Kconfig.binfmt"
2180
2181config ARTHUR
2182 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002183 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002184 help
2185 Say Y here to include the kernel code necessary if you want to run
2186 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2187 experimental; if this sounds frightening, say N and sleep in peace.
2188 You can also say M here to compile this support as a module (which
2189 will be called arthur).
2190
2191endmenu
2192
2193menu "Power management options"
2194
Russell Kingeceab4a2005-11-15 11:31:41 +00002195source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002196
Johannes Bergf4cb5702007-12-08 02:14:00 +01002197config ARCH_SUSPEND_POSSIBLE
Russell King586893e2011-05-25 21:47:48 +01002198 depends on !ARCH_S5P64X0 && !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002199 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
2200 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
Johannes Bergf4cb5702007-12-08 02:14:00 +01002201 def_bool y
2202
Linus Torvalds1da177e2005-04-16 15:20:36 -07002203endmenu
2204
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002205source "net/Kconfig"
2206
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002207source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002208
2209source "fs/Kconfig"
2210
Linus Torvalds1da177e2005-04-16 15:20:36 -07002211source "arch/arm/Kconfig.debug"
2212
2213source "security/Kconfig"
2214
2215source "crypto/Kconfig"
2216
2217source "lib/Kconfig"