blob: dbd2cb19924a34cca065bcb0c4d3cf2d0765ca07 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
David Woodhousee17c6d52008-06-17 12:19:34 +01004 select HAVE_AOUT
Russell King24056f52011-01-03 11:29:28 +00005 select HAVE_DMA_API_DEBUG
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +02006 select HAVE_IDE if PCI || ISA || PCMCIA
Russell King2778f622010-07-09 16:27:52 +01007 select HAVE_MEMBLOCK
Alessandro Zummo12b824f2006-03-27 01:16:35 -08008 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +00009 select SYS_SUPPORTS_APM_EMULATION
Russell Kinga41297a2011-01-17 15:48:33 +000010 select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI)
Will Deaconfe166142010-04-30 11:37:51 +010011 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jason Wessel5cbad0e2008-02-20 13:33:40 -060012 select HAVE_ARCH_KGDB
Jon Medhurst856bc352011-06-14 13:09:39 +010013 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080014 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040015 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Rabin Vincent80be7a72010-08-10 19:58:17 +010016 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
17 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Rabin Vincent0e341af2010-11-06 23:03:53 +053018 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040019 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080020 select HAVE_KERNEL_GZIP
21 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010022 select HAVE_KERNEL_LZMA
Peter Zijlstrae360adb2010-10-14 14:01:34 +080023 select HAVE_IRQ_WORK
Jamie Iles7ada1892010-02-02 20:24:58 +010024 select HAVE_PERF_EVENTS
25 select PERF_USE_VMALLOC
Will Deacone513f8b2010-06-25 12:24:53 +010026 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kinge399b1a2011-01-17 15:08:32 +000027 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
Rabin Vincented604532010-11-30 17:36:48 +010028 select HAVE_C_RECORDMCOUNT
Lennert Buytenheke2a93ec2010-11-29 10:06:57 +010029 select HAVE_GENERIC_HARDIRQS
30 select HAVE_SPARSE_IRQ
Thomas Gleixner25a56622011-03-24 12:02:11 +010031 select GENERIC_IRQ_SHOW
Santosh 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
Simon Glass87e040b2011-08-16 23:44:26 +0100229config GENERIC_BUG
230 def_bool y
231 depends on BUG
232
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233source "init/Kconfig"
234
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700235source "kernel/Kconfig.freezer"
236
Linus Torvalds1da177e2005-04-16 15:20:36 -0700237menu "System Type"
238
Hyok S. Choi3c427972009-07-24 12:35:00 +0100239config MMU
240 bool "MMU-based Paged Memory Management Support"
241 default y
242 help
243 Select if you want MMU-based virtualised addressing space
244 support by paged memory management. If unsure, say 'Y'.
245
Russell Kingccf50e22010-03-15 19:03:06 +0000246#
247# The "ARM system type" choice list is ordered alphabetically by option
248# text. Please add new entries in the option alphabetic order.
249#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700250choice
251 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000252 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100254config ARCH_INTEGRATOR
255 bool "ARM Ltd. Integrator family"
256 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100257 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100258 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900259 select HAVE_MACH_CLKDEV
Linus Walleij9904f792011-12-09 10:29:23 +0100260 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000261 select ICST
Russell King13edd862010-01-15 21:49:23 +0000262 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000263 select PLAT_VERSATILE
Russell Kingc41b16f2011-01-19 15:32:15 +0000264 select PLAT_VERSATILE_FPGA_IRQ
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400265 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100266 help
267 Support for ARM's Integrator platform.
268
269config ARCH_REALVIEW
270 bool "ARM Ltd. RealView family"
271 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100272 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900273 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000274 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100275 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100276 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000277 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000278 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000279 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100280 select GPIO_PL061 if GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400281 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100282 help
283 This enables support for ARM Ltd RealView boards.
284
285config ARCH_VERSATILE
286 bool "ARM Ltd. Versatile family"
287 select ARM_AMBA
288 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100289 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900290 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000291 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100292 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100293 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000294 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000295 select PLAT_VERSATILE_CLCD
Russell Kingc41b16f2011-01-19 15:32:15 +0000296 select PLAT_VERSATILE_FPGA_IRQ
Russell Kinge3887712010-01-14 13:30:16 +0000297 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100298 help
299 This enables support for ARM Ltd Versatile board.
300
Russell Kingceade892010-02-11 21:44:53 +0000301config ARCH_VEXPRESS
302 bool "ARM Ltd. Versatile Express family"
303 select ARCH_WANT_OPTIONAL_GPIOLIB
304 select ARM_AMBA
305 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100306 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900307 select HAVE_MACH_CLKDEV
Russell Kingceade892010-02-11 21:44:53 +0000308 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000309 select HAVE_CLK
Nick Bowler95c34f82011-01-21 15:51:06 +0100310 select HAVE_PATA_PLATFORM
Russell Kingceade892010-02-11 21:44:53 +0000311 select ICST
312 select PLAT_VERSATILE
Russell King0fb44b92011-01-18 20:13:51 +0000313 select PLAT_VERSATILE_CLCD
Russell Kingceade892010-02-11 21:44:53 +0000314 help
315 This enables support for the ARM Ltd Versatile Express boards.
316
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100317config ARCH_AT91
318 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100319 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700320 select HAVE_CLK
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100321 select CLKDEV_LOOKUP
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100322 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100323 This enables support for systems based on the Atmel AT91RM9200,
324 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100325
Russell Kingccf50e22010-03-15 19:03:06 +0000326config ARCH_BCMRING
327 bool "Broadcom BCMRING"
328 depends on MMU
329 select CPU_V6
330 select ARM_AMBA
Russell King82d63732011-05-12 13:43:39 +0100331 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100332 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000333 select GENERIC_CLOCKEVENTS
334 select ARCH_WANT_OPTIONAL_GPIOLIB
335 help
336 Support for Broadcom's BCMRing platform.
337
Rob Herring220e6cf2011-06-07 10:02:55 -0500338config ARCH_HIGHBANK
339 bool "Calxeda Highbank-based"
340 select ARCH_WANT_OPTIONAL_GPIOLIB
341 select ARM_AMBA
342 select ARM_GIC
343 select ARM_TIMER_SP804
344 select CLKDEV_LOOKUP
345 select CPU_V7
346 select GENERIC_CLOCKEVENTS
347 select HAVE_ARM_SCU
348 select USE_OF
349 help
350 Support for the Calxeda Highbank SoC based boards.
351
Linus Torvalds1da177e2005-04-16 15:20:36 -0700352config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100353 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000354 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000355 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400356 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000357 help
358 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700359
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300360config ARCH_CNS3XXX
361 bool "Cavium Networks CNS3XXX family"
Imre Kaloz00d27112011-07-07 12:19:09 +0200362 select CPU_V6K
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300363 select GENERIC_CLOCKEVENTS
364 select ARM_GIC
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100365 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400366 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300367 help
368 Support for Cavium Networks CNS3XXX platform.
369
Russell King788c9702009-04-26 14:21:59 +0100370config ARCH_GEMINI
371 bool "Cortina Systems Gemini"
372 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100373 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000374 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100375 help
376 Support for the Cortina Systems Gemini family SoCs
377
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200378config ARCH_PRIMA2
379 bool "CSR SiRFSoC PRIMA2 ARM Cortex A9 Platform"
380 select CPU_V7
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200381 select NO_IOPORT
382 select GENERIC_CLOCKEVENTS
383 select CLKDEV_LOOKUP
384 select GENERIC_IRQ_CHIP
385 select USE_OF
386 select ZONE_DMA
387 help
388 Support for CSR SiRFSoC ARM Cortex A9 Platform
389
Linus Torvalds1da177e2005-04-16 15:20:36 -0700390config ARCH_EBSA110
391 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000392 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100393 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000394 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000395 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400396 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700397 help
398 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000399 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700400 Ethernet interface, two PCMCIA sockets, two serial ports and a
401 parallel port.
402
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000403config ARCH_EP93XX
404 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000405 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000406 select ARM_AMBA
407 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100408 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700409 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100410 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000411 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100412 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000413 help
414 This enables support for the Cirrus EP93xx series of CPUs.
415
Linus Torvalds1da177e2005-04-16 15:20:36 -0700416config ARCH_FOOTBRIDGE
417 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000418 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700419 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000420 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200421 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400422 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000423 help
424 Support for systems based on the DC21285 companion chip
425 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426
Russell King788c9702009-04-26 14:21:59 +0100427config ARCH_MXC
428 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100429 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100430 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100431 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100432 select CLKSRC_MMIO
Shawn Guo8b6c44f2011-06-07 13:59:14 +0800433 select GENERIC_IRQ_CHIP
Jan Weitzelc124bef2011-03-17 13:44:30 +0100434 select HAVE_SCHED_CLOCK
Sascha Hauerffa2ea32011-09-20 14:31:24 +0200435 select MULTI_IRQ_HANDLER
Russell King788c9702009-04-26 14:21:59 +0100436 help
437 Support for Freescale MXC/iMX-based family of processors
438
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800439config ARCH_MXS
440 bool "Freescale MXS-based"
441 select GENERIC_CLOCKEVENTS
442 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100443 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100444 select CLKSRC_MMIO
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800445 help
446 Support for Freescale MXS-based family of processors
447
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100448config ARCH_NETX
449 bool "Hilscher NetX based"
Russell King234b6ced2011-05-08 14:09:47 +0100450 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000451 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100452 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100453 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000454 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100455 This enables support for systems based on the Hilscher NetX Soc
456
457config ARCH_H720X
458 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000459 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100460 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000461 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100462 help
463 This enables support for systems based on the Hynix HMS720x
464
Russell King3b938be2007-05-12 11:25:44 +0100465config ARCH_IOP13XX
466 bool "IOP13xx-based"
467 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000468 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100469 select PLAT_IOP
470 select PCI
471 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100472 select VMSPLIT_1G
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400473 select NEED_MACH_MEMORY_H
Russell King3b938be2007-05-12 11:25:44 +0100474 help
475 Support for Intel's IOP13XX (XScale) family of processors.
476
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100477config ARCH_IOP32X
478 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100479 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000480 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100481 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100482 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100483 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000484 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100485 Support for Intel's 80219 and IOP32X (XScale) family of
486 processors.
487
488config ARCH_IOP33X
489 bool "IOP33x-based"
490 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000491 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100492 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100493 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100494 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100495 help
496 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700497
Russell King3b938be2007-05-12 11:25:44 +0100498config ARCH_IXP23XX
499 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100500 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000501 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100502 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000503 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400504 select NEED_MACH_MEMORY_H
Dan Williams285f5fa2006-12-07 02:59:39 +0100505 help
Russell King3b938be2007-05-12 11:25:44 +0100506 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700507
508config ARCH_IXP2000
509 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100510 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000511 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100512 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000513 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400514 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000515 help
516 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700517
Russell King3b938be2007-05-12 11:25:44 +0100518config ARCH_IXP4XX
519 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100520 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100521 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000522 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100523 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100524 select GENERIC_CLOCKEVENTS
Russell King5b0d4952010-12-15 21:23:13 +0000525 select HAVE_SCHED_CLOCK
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100526 select MIGHT_HAVE_PCI
Russell King485bdde2008-10-17 14:00:43 +0100527 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100528 help
Russell King3b938be2007-05-12 11:25:44 +0100529 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100530
Saeed Bisharaedabd382009-08-06 15:12:43 +0300531config ARCH_DOVE
532 bool "Marvell Dove"
Konstantin Porotchkin7b769bb2011-04-07 13:49:41 +0300533 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300534 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300535 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300536 select GENERIC_CLOCKEVENTS
537 select PLAT_ORION
538 help
539 Support for the Marvell Dove SoC 88AP510
540
Saeed Bishara651c74c2008-06-22 22:45:06 +0200541config ARCH_KIRKWOOD
542 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000543 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200544 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700545 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200546 select GENERIC_CLOCKEVENTS
547 select PLAT_ORION
548 help
549 Support for the following Marvell Kirkwood series SoCs:
550 88F6180, 88F6192 and 88F6281.
551
Kevin Wells40805942010-07-27 08:49:04 -0700552config ARCH_LPC32XX
553 bool "NXP LPC32XX"
Russell King234b6ced2011-05-08 14:09:47 +0100554 select CLKSRC_MMIO
Kevin Wells40805942010-07-27 08:49:04 -0700555 select CPU_ARM926T
556 select ARCH_REQUIRE_GPIOLIB
557 select HAVE_IDE
558 select ARM_AMBA
559 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100560 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700561 select GENERIC_CLOCKEVENTS
562 help
563 Support for the NXP LPC32XX family of processors
564
Russell King788c9702009-04-26 14:21:59 +0100565config ARCH_MV78XX0
566 bool "Marvell MV78xx0"
567 select CPU_FEROCEON
568 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700569 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100570 select GENERIC_CLOCKEVENTS
571 select PLAT_ORION
572 help
573 Support for the following Marvell MV78xx0 series SoCs:
574 MV781x0, MV782x0.
575
576config ARCH_ORION5X
577 bool "Marvell Orion"
578 depends on MMU
579 select CPU_FEROCEON
580 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700581 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100582 select GENERIC_CLOCKEVENTS
583 select PLAT_ORION
584 help
585 Support for the following Marvell Orion 5x series SoCs:
586 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
587 Orion-2 (5281), Orion-1-90 (6183).
588
589config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500590 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100591 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100592 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100593 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100594 select GENERIC_CLOCKEVENTS
Russell King28bb7bc2010-12-15 21:46:48 +0000595 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100596 select TICK_ONESHOT
597 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400598 select SPARSE_IRQ
Leo Yan3c7241b2011-08-15 11:09:52 +0800599 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100600 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500601 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100602
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100603config ARCH_KS8695
604 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000605 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100606 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000607 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400608 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100609 help
610 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
611 System-on-Chip devices.
612
Russell King788c9702009-04-26 14:21:59 +0100613config ARCH_W90X900
614 bool "Nuvoton W90X900 CPU"
615 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100616 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100617 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100618 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100619 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200620 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100621 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
622 At present, the w90x900 has been renamed nuc900, regarding
623 the ARM series product line, you can login the following
624 link address to know more.
625
626 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
627 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400628
Erik Gillingc5f80062010-01-21 16:53:02 -0800629config ARCH_TEGRA
630 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000631 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100632 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800633 select GENERIC_CLOCKEVENTS
634 select GENERIC_GPIO
635 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000636 select HAVE_SCHED_CLOCK
Colin Cross7056d422010-04-22 20:30:13 -0700637 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800638 help
639 This enables support for NVIDIA Tegra based systems (Tegra APX,
640 Tegra 6xx and Tegra 2 series).
641
Jamie Ilesaf756552011-07-25 17:36:42 +0100642config ARCH_PICOXCELL
643 bool "Picochip picoXcell"
644 select ARCH_REQUIRE_GPIOLIB
645 select ARM_PATCH_PHYS_VIRT
646 select ARM_VIC
647 select CPU_V6K
648 select DW_APB_TIMER
649 select GENERIC_CLOCKEVENTS
650 select GENERIC_GPIO
651 select HAVE_SCHED_CLOCK
652 select HAVE_TCM
653 select NO_IOPORT
654 select USE_OF
655 help
656 This enables support for systems based on the Picochip picoXcell
657 family of Femtocell devices. The picoxcell support requires device tree
658 for all boards.
659
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100660config ARCH_PNX4008
661 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000662 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100663 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000664 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100665 help
666 This enables support for Philips PNX4008 mobile platform.
667
Linus Torvalds1da177e2005-04-16 15:20:36 -0700668config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700669 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100670 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500671 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100672 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100673 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100674 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700675 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100676 select GENERIC_CLOCKEVENTS
Russell King7ce83012010-12-15 21:48:15 +0000677 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000678 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800679 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800680 select SPARSE_IRQ
Eric Miao4e234cc2011-04-04 15:06:33 +0800681 select AUTO_ZRELADDR
Eric Miao8a97ae22011-05-18 21:30:04 +0800682 select MULTI_IRQ_HANDLER
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +0200683 select ARM_CPU_SUSPEND if PM
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200684 select HAVE_IDE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000685 help
eric miao2c8086a2007-09-11 19:13:17 -0700686 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700687
Russell King788c9702009-04-26 14:21:59 +0100688config ARCH_MSM
689 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500690 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800691 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700692 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800693 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800694 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800695 Support for Qualcomm MSM/QSD based systems. This runs on the
696 apps processor of the MSM/QSD and depends on a shared memory
697 interface to the modem processor which runs the baseband
698 stack and controls some vital subsystems
699 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800700
Magnus Dammc793c1b2010-02-05 11:14:49 +0000701config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900702 bool "Renesas SH-Mobile / R-Mobile"
703 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900704 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900705 select HAVE_MACH_CLKDEV
Paul Mundt6d72ad32010-11-16 16:10:20 +0900706 select GENERIC_CLOCKEVENTS
707 select NO_IOPORT
708 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000709 select MULTI_IRQ_HANDLER
Rafael J. Wysockie3e01092011-07-01 22:13:56 +0200710 select PM_GENERIC_DOMAINS if PM
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400711 select NEED_MACH_MEMORY_H
Magnus Dammc793c1b2010-02-05 11:14:49 +0000712 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900713 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000714
Linus Torvalds1da177e2005-04-16 15:20:36 -0700715config ARCH_RPC
716 bool "RiscPC"
717 select ARCH_ACORN
718 select FIQ
719 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100720 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100721 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000722 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000723 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100724 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000725 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200726 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400727 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700728 help
729 On the Acorn Risc-PC, Linux can support the internal IDE disk and
730 CD-ROM interface, serial and parallel port, and the floppy drive.
731
732config ARCH_SA1100
733 bool "SA1100-based"
Russell King234b6ced2011-05-08 14:09:47 +0100734 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000735 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100736 select ISA
Russell King05944d72006-11-30 20:43:51 +0000737 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500738 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100739 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000740 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100741 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700742 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000743 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100744 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700745 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200746 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400747 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000748 help
749 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700750
751config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900752 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800753 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100754 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700755 select HAVE_CLK
Thomas Abrahame83626f2011-06-14 19:12:26 +0900756 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000757 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900758 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700759 help
760 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
761 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000762 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700763
Ben Dooks63b1f512010-04-30 16:32:26 +0900764 Note, the S3C2416 and the S3C2450 are so close that they even share
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300765 the same SoC ID code. This means that there is no separate machine
Ben Dooks63b1f512010-04-30 16:32:26 +0900766 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
767
Ben Dooksa08ab632008-10-21 14:06:39 +0100768config ARCH_S3C64XX
769 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000770 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900771 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900772 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100773 select HAVE_CLK
Mark Brown67003972011-10-11 08:57:11 +0900774 select HAVE_TCM
Thomas Abraham226e85f2011-06-14 19:12:26 +0900775 select CLKDEV_LOOKUP
Ben Dooks89f0ce72010-01-26 15:49:15 +0900776 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000777 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100778 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900779 select ARCH_REQUIRE_GPIOLIB
780 select SAMSUNG_CLKSRC
781 select SAMSUNG_IRQ_VIC_TIMER
Ben Dooks89f0ce72010-01-26 15:49:15 +0900782 select S3C_GPIO_TRACK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900783 select S3C_DEV_NAND
784 select USB_ARCH_HAS_OHCI
785 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900786 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900787 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100788 help
789 Samsung S3C64XX series based systems
790
Kukjin Kim49b7a492010-09-07 15:47:18 +0900791config ARCH_S5P64X0
792 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900793 select CPU_V6
794 select GENERIC_GPIO
795 select HAVE_CLK
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900796 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900797 select CLKSRC_MMIO
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900798 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900799 select GENERIC_CLOCKEVENTS
800 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900801 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900802 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900803 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900804 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
805 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900806
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200807config ARCH_S5PC100
808 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900809 select GENERIC_GPIO
810 select HAVE_CLK
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900811 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900812 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100813 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900814 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900815 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900816 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900817 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900818 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200819 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900820
Kukjin Kim170f4e42010-02-24 16:40:44 +0900821config ARCH_S5PV210
822 bool "Samsung S5PV210/S5PC110"
823 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900824 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900825 select ARCH_HAS_HOLES_MEMORYMODEL
Kukjin Kim170f4e42010-02-24 16:40:44 +0900826 select GENERIC_GPIO
827 select HAVE_CLK
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900828 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900829 select CLKSRC_MMIO
Kukjin Kim170f4e42010-02-24 16:40:44 +0900830 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900831 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900832 select GENERIC_CLOCKEVENTS
833 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900834 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900835 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900836 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400837 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900838 help
839 Samsung S5PV210/S5PC110 series based systems
840
Kukjin Kim83014572011-11-06 13:54:56 +0900841config ARCH_EXYNOS
842 bool "SAMSUNG EXYNOS"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900843 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900844 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900845 select ARCH_HAS_HOLES_MEMORYMODEL
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900846 select GENERIC_GPIO
847 select HAVE_CLK
Thomas Abrahambadc4f22011-06-14 19:12:27 +0900848 select CLKDEV_LOOKUP
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900849 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900850 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900851 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900852 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900853 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400854 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900855 help
Kukjin Kim83014572011-11-06 13:54:56 +0900856 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900857
Linus Torvalds1da177e2005-04-16 15:20:36 -0700858config ARCH_SHARK
859 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000860 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100861 select ISA
862 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100863 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100864 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000865 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400866 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000867 help
868 Support for the StrongARM based Digital DNARD machine, also known
869 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700870
Hans J. Koch83ef3332010-09-17 18:13:56 +0200871config ARCH_TCC_926
872 bool "Telechips TCC ARM926-based systems"
Russell King234b6ced2011-05-08 14:09:47 +0100873 select CLKSRC_MMIO
Hans J. Koch83ef3332010-09-17 18:13:56 +0200874 select CPU_ARM926T
875 select HAVE_CLK
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100876 select CLKDEV_LOOKUP
Hans J. Koch83ef3332010-09-17 18:13:56 +0200877 select GENERIC_CLOCKEVENTS
878 help
879 Support for Telechips TCC ARM926-based systems.
880
Linus Walleijd98aac72009-04-27 10:21:46 +0100881config ARCH_U300
882 bool "ST-Ericsson U300 Series"
883 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100884 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100885 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000886 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100887 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100888 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200889 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100890 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100891 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100892 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900893 select HAVE_MACH_CLKDEV
Linus Walleijd98aac72009-04-27 10:21:46 +0100894 select GENERIC_GPIO
Linus Walleijcc890cd2011-09-08 09:04:51 +0100895 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400896 select NEED_MACH_MEMORY_H
Linus Walleijd98aac72009-04-27 10:21:46 +0100897 help
898 Support for ST-Ericsson U300 series mobile platforms.
899
Russell Kingccf50e22010-03-15 19:03:06 +0000900config ARCH_U8500
901 bool "ST-Ericsson U8500 Series"
902 select CPU_V7
903 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000904 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100905 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100906 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100907 select ARCH_HAS_CPUFREQ
Russell Kingccf50e22010-03-15 19:03:06 +0000908 help
909 Support for ST-Ericsson's Ux500 architecture
910
911config ARCH_NOMADIK
912 bool "STMicroelectronics Nomadik"
913 select ARM_AMBA
914 select ARM_VIC
915 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100916 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000917 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000918 select ARCH_REQUIRE_GPIOLIB
919 help
920 Support for the Nomadik platform by ST-Ericsson
921
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100922config ARCH_DAVINCI
923 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100924 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700925 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100926 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700927 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100928 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700929 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100930 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530931 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100932 help
933 Support for TI's DaVinci platform.
934
Russell King3b938be2007-05-12 11:25:44 +0100935config ARCH_OMAP
936 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700937 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700938 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100939 select ARCH_HAS_CPUFREQ
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700940 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700941 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000942 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800943 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100944 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200945 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100946
viresh kumarcee37e52010-04-01 12:31:05 +0100947config PLAT_SPEAR
948 bool "ST SPEAr"
949 select ARM_AMBA
950 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100951 select CLKDEV_LOOKUP
Russell Kingd6e15d72011-05-08 17:10:14 +0100952 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100953 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100954 select HAVE_CLK
955 help
956 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
957
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100958config ARCH_VT8500
959 bool "VIA/WonderMedia 85xx"
960 select CPU_ARM926T
961 select GENERIC_GPIO
962 select ARCH_HAS_CPUFREQ
963 select GENERIC_CLOCKEVENTS
964 select ARCH_REQUIRE_GPIOLIB
965 select HAVE_PWM
966 help
967 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +0800968
John Linnb85a3ef2011-06-20 11:47:27 -0600969config ARCH_ZYNQ
970 bool "Xilinx Zynq ARM Cortex A9 Platform"
Binghua Duan02c981c2011-07-08 17:40:12 +0800971 select CPU_V7
Binghua Duan02c981c2011-07-08 17:40:12 +0800972 select GENERIC_CLOCKEVENTS
973 select CLKDEV_LOOKUP
John Linnb85a3ef2011-06-20 11:47:27 -0600974 select ARM_GIC
975 select ARM_AMBA
976 select ICST
Binghua Duan02c981c2011-07-08 17:40:12 +0800977 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +0800978 help
John Linnb85a3ef2011-06-20 11:47:27 -0600979 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -0700980endchoice
981
Russell Kingccf50e22010-03-15 19:03:06 +0000982#
983# This is sorted alphabetically by mach-* pathname. However, plat-*
984# Kconfigs may be included either alphabetically (according to the
985# plat- suffix) or along side the corresponding mach-* source.
986#
Russell King95b8f202010-01-14 11:43:54 +0000987source "arch/arm/mach-at91/Kconfig"
988
989source "arch/arm/mach-bcmring/Kconfig"
990
Linus Torvalds1da177e2005-04-16 15:20:36 -0700991source "arch/arm/mach-clps711x/Kconfig"
992
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300993source "arch/arm/mach-cns3xxx/Kconfig"
994
Russell King95b8f202010-01-14 11:43:54 +0000995source "arch/arm/mach-davinci/Kconfig"
996
997source "arch/arm/mach-dove/Kconfig"
998
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000999source "arch/arm/mach-ep93xx/Kconfig"
1000
Linus Torvalds1da177e2005-04-16 15:20:36 -07001001source "arch/arm/mach-footbridge/Kconfig"
1002
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001003source "arch/arm/mach-gemini/Kconfig"
1004
Russell King95b8f202010-01-14 11:43:54 +00001005source "arch/arm/mach-h720x/Kconfig"
1006
Linus Torvalds1da177e2005-04-16 15:20:36 -07001007source "arch/arm/mach-integrator/Kconfig"
1008
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001009source "arch/arm/mach-iop32x/Kconfig"
1010
1011source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001012
Dan Williams285f5fa2006-12-07 02:59:39 +01001013source "arch/arm/mach-iop13xx/Kconfig"
1014
Linus Torvalds1da177e2005-04-16 15:20:36 -07001015source "arch/arm/mach-ixp4xx/Kconfig"
1016
1017source "arch/arm/mach-ixp2000/Kconfig"
1018
Lennert Buytenhekc4713072006-03-28 21:18:54 +01001019source "arch/arm/mach-ixp23xx/Kconfig"
1020
Russell King95b8f202010-01-14 11:43:54 +00001021source "arch/arm/mach-kirkwood/Kconfig"
1022
1023source "arch/arm/mach-ks8695/Kconfig"
1024
Kevin Wells40805942010-07-27 08:49:04 -07001025source "arch/arm/mach-lpc32xx/Kconfig"
1026
Russell King95b8f202010-01-14 11:43:54 +00001027source "arch/arm/mach-msm/Kconfig"
1028
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001029source "arch/arm/mach-mv78xx0/Kconfig"
1030
Russell King95b8f202010-01-14 11:43:54 +00001031source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001032
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001033source "arch/arm/mach-mxs/Kconfig"
1034
Russell King95b8f202010-01-14 11:43:54 +00001035source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001036
Russell King95b8f202010-01-14 11:43:54 +00001037source "arch/arm/mach-nomadik/Kconfig"
1038source "arch/arm/plat-nomadik/Kconfig"
1039
Tony Lindgrend48af152005-07-10 19:58:17 +01001040source "arch/arm/plat-omap/Kconfig"
1041
1042source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001043
Tony Lindgren1dbae812005-11-10 14:26:51 +00001044source "arch/arm/mach-omap2/Kconfig"
1045
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001046source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001047
Russell King95b8f202010-01-14 11:43:54 +00001048source "arch/arm/mach-pxa/Kconfig"
1049source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001050
Russell King95b8f202010-01-14 11:43:54 +00001051source "arch/arm/mach-mmp/Kconfig"
1052
1053source "arch/arm/mach-realview/Kconfig"
1054
1055source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001056
Ben Dookscf383672009-11-10 00:14:58 +00001057source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001058source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001059source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001060
viresh kumarcee37e52010-04-01 12:31:05 +01001061source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001062
Hans J. Koch83ef3332010-09-17 18:13:56 +02001063source "arch/arm/plat-tcc/Kconfig"
1064
Ben Dooksa21765a2007-02-11 18:31:01 +01001065if ARCH_S3C2410
Linus Torvalds1da177e2005-04-16 15:20:36 -07001066source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001067source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +09001068source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001069source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +01001070source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001071endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001072
Ben Dooksa08ab632008-10-21 14:06:39 +01001073if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001074source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001075endif
1076
Kukjin Kim49b7a492010-09-07 15:47:18 +09001077source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001078
Byungho Min5a7652f2009-06-23 21:39:42 +09001079source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001080
Kukjin Kim170f4e42010-02-24 16:40:44 +09001081source "arch/arm/mach-s5pv210/Kconfig"
1082
Kukjin Kim83014572011-11-06 13:54:56 +09001083source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001084
Russell King882d01f2010-03-02 23:40:15 +00001085source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001086
Erik Gillingc5f80062010-01-21 16:53:02 -08001087source "arch/arm/mach-tegra/Kconfig"
1088
Russell King95b8f202010-01-14 11:43:54 +00001089source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001090
Russell King95b8f202010-01-14 11:43:54 +00001091source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001092
1093source "arch/arm/mach-versatile/Kconfig"
1094
Russell Kingceade892010-02-11 21:44:53 +00001095source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001096source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001097
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001098source "arch/arm/mach-vt8500/Kconfig"
1099
wanzongshun7ec80dd2008-12-03 03:55:38 +01001100source "arch/arm/mach-w90x900/Kconfig"
1101
Linus Torvalds1da177e2005-04-16 15:20:36 -07001102# Definitions to make life easier
1103config ARCH_ACORN
1104 bool
1105
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001106config PLAT_IOP
1107 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001108 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001109 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001110
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001111config PLAT_ORION
1112 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001113 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001114 select GENERIC_IRQ_CHIP
Russell Kingf06a1622010-12-15 21:55:06 +00001115 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001116
Eric Miaobd5ce432009-01-20 12:06:01 +08001117config PLAT_PXA
1118 bool
1119
Russell Kingf4b8b312010-01-14 12:48:06 +00001120config PLAT_VERSATILE
1121 bool
1122
Russell Kinge3887712010-01-14 13:30:16 +00001123config ARM_TIMER_SP804
1124 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001125 select CLKSRC_MMIO
Russell Kinge3887712010-01-14 13:30:16 +00001126
Linus Torvalds1da177e2005-04-16 15:20:36 -07001127source arch/arm/mm/Kconfig
1128
Russell King958cab02011-12-11 10:04:00 +00001129config ARM_NR_BANKS
1130 int
1131 default 16 if ARCH_EP93XX
1132 default 8
1133
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001134config IWMMXT
1135 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001136 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1137 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001138 help
1139 Enable support for iWMMXt context switching at run time if
1140 running on a CPU that supports it.
1141
Linus Torvalds1da177e2005-04-16 15:20:36 -07001142# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1143config XSCALE_PMU
1144 bool
1145 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1146 default y
1147
Jamie Iles0f4f0672010-02-02 20:23:15 +01001148config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001149 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001150 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001151 default y
1152 bool
1153
eric miao52108642010-12-13 09:42:34 +01001154config MULTI_IRQ_HANDLER
1155 bool
1156 help
1157 Allow each machine to specify it's own IRQ handler at run time.
1158
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001159if !MMU
1160source "arch/arm/Kconfig-nommu"
1161endif
1162
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001163config ARM_ERRATA_411920
1164 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001165 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001166 help
1167 Invalidation of the Instruction Cache operation can
1168 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1169 It does not affect the MPCore. This option enables the ARM Ltd.
1170 recommended workaround.
1171
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001172config ARM_ERRATA_430973
1173 bool "ARM errata: Stale prediction on replaced interworking branch"
1174 depends on CPU_V7
1175 help
1176 This option enables the workaround for the 430973 Cortex-A8
1177 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1178 interworking branch is replaced with another code sequence at the
1179 same virtual address, whether due to self-modifying code or virtual
1180 to physical address re-mapping, Cortex-A8 does not recover from the
1181 stale interworking branch prediction. This results in Cortex-A8
1182 executing the new code sequence in the incorrect ARM or Thumb state.
1183 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1184 and also flushes the branch target cache at every context switch.
1185 Note that setting specific bits in the ACTLR register may not be
1186 available in non-secure mode.
1187
Catalin Marinas855c5512009-04-30 17:06:15 +01001188config ARM_ERRATA_458693
1189 bool "ARM errata: Processor deadlock when a false hazard is created"
1190 depends on CPU_V7
1191 help
1192 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1193 erratum. For very specific sequences of memory operations, it is
1194 possible for a hazard condition intended for a cache line to instead
1195 be incorrectly associated with a different cache line. This false
1196 hazard might then cause a processor deadlock. The workaround enables
1197 the L1 caching of the NEON accesses and disables the PLD instruction
1198 in the ACTLR register. Note that setting specific bits in the ACTLR
1199 register may not be available in non-secure mode.
1200
Catalin Marinas0516e462009-04-30 17:06:20 +01001201config ARM_ERRATA_460075
1202 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1203 depends on CPU_V7
1204 help
1205 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1206 erratum. Any asynchronous access to the L2 cache may encounter a
1207 situation in which recent store transactions to the L2 cache are lost
1208 and overwritten with stale memory contents from external memory. The
1209 workaround disables the write-allocate mode for the L2 cache via the
1210 ACTLR register. Note that setting specific bits in the ACTLR register
1211 may not be available in non-secure mode.
1212
Will Deacon9f050272010-09-14 09:51:43 +01001213config ARM_ERRATA_742230
1214 bool "ARM errata: DMB operation may be faulty"
1215 depends on CPU_V7 && SMP
1216 help
1217 This option enables the workaround for the 742230 Cortex-A9
1218 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1219 between two write operations may not ensure the correct visibility
1220 ordering of the two writes. This workaround sets a specific bit in
1221 the diagnostic register of the Cortex-A9 which causes the DMB
1222 instruction to behave as a DSB, ensuring the correct behaviour of
1223 the two writes.
1224
Will Deacona672e992010-09-14 09:53:02 +01001225config ARM_ERRATA_742231
1226 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1227 depends on CPU_V7 && SMP
1228 help
1229 This option enables the workaround for the 742231 Cortex-A9
1230 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1231 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1232 accessing some data located in the same cache line, may get corrupted
1233 data due to bad handling of the address hazard when the line gets
1234 replaced from one of the CPUs at the same time as another CPU is
1235 accessing it. This workaround sets specific bits in the diagnostic
1236 register of the Cortex-A9 which reduces the linefill issuing
1237 capabilities of the processor.
1238
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001239config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001240 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001241 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001242 help
1243 The PL310 L2 cache controller implements three types of Clean &
1244 Invalidate maintenance operations: by Physical Address
1245 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1246 They are architecturally defined to behave as the execution of a
1247 clean operation followed immediately by an invalidate operation,
1248 both performing to the same memory location. This functionality
1249 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001250 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001251
1252config ARM_ERRATA_720789
1253 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1254 depends on CPU_V7 && SMP
1255 help
1256 This option enables the workaround for the 720789 Cortex-A9 (prior to
1257 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1258 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1259 As a consequence of this erratum, some TLB entries which should be
1260 invalidated are not, resulting in an incoherency in the system page
1261 tables. The workaround changes the TLB flushing routines to invalidate
1262 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001263
Russell King1f0090a2011-03-16 23:35:25 +00001264config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001265 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001266 depends on CACHE_L2X0
1267 help
1268 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1269 operation (offset 0x7FC). This operation runs in background so that
1270 PL310 can handle normal accesses while it is in progress. Under very
1271 rare circumstances, due to this erratum, write data can be lost when
1272 PL310 treats a cacheable write transaction during a Clean &
1273 Invalidate by Way operation.
1274
Will Deacon475d92f2010-09-28 14:02:02 +01001275config ARM_ERRATA_743622
1276 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1277 depends on CPU_V7
1278 help
1279 This option enables the workaround for the 743622 Cortex-A9
1280 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1281 optimisation in the Cortex-A9 Store Buffer may lead to data
1282 corruption. This workaround sets a specific bit in the diagnostic
1283 register of the Cortex-A9 which disables the Store Buffer
1284 optimisation, preventing the defect from occurring. This has no
1285 visible impact on the overall performance or power consumption of the
1286 processor.
1287
Will Deacon9a27c272011-02-18 16:36:35 +01001288config ARM_ERRATA_751472
1289 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
1290 depends on CPU_V7 && SMP
1291 help
1292 This option enables the workaround for the 751472 Cortex-A9 (prior
1293 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1294 completion of a following broadcasted operation if the second
1295 operation is received by a CPU before the ICIALLUIS has completed,
1296 potentially leading to corrupted entries in the cache or TLB.
1297
Will Deaconfa0ce402011-11-14 17:24:57 +01001298config PL310_ERRATA_753970
1299 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001300 depends on CACHE_PL310
1301 help
1302 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1303
1304 Under some condition the effect of cache sync operation on
1305 the store buffer still remains when the operation completes.
1306 This means that the store buffer is always asked to drain and
1307 this prevents it from merging any further writes. The workaround
1308 is to replace the normal offset of cache sync operation (0x730)
1309 by another offset targeting an unmapped PL310 register 0x740.
1310 This has the same effect as the cache sync operation: store buffer
1311 drain and waiting for all buffers empty.
1312
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001313config ARM_ERRATA_754322
1314 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1315 depends on CPU_V7
1316 help
1317 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1318 r3p*) erratum. A speculative memory access may cause a page table walk
1319 which starts prior to an ASID switch but completes afterwards. This
1320 can populate the micro-TLB with a stale entry which may be hit with
1321 the new ASID. This workaround places two dsb instructions in the mm
1322 switching code so that no page table walks can cross the ASID switch.
1323
Will Deacon5dab26af2011-03-04 12:38:54 +01001324config ARM_ERRATA_754327
1325 bool "ARM errata: no automatic Store Buffer drain"
1326 depends on CPU_V7 && SMP
1327 help
1328 This option enables the workaround for the 754327 Cortex-A9 (prior to
1329 r2p0) erratum. The Store Buffer does not have any automatic draining
1330 mechanism and therefore a livelock may occur if an external agent
1331 continuously polls a memory location waiting to observe an update.
1332 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1333 written polling loops from denying visibility of updates to memory.
1334
Catalin Marinas145e10e2011-08-15 11:04:41 +01001335config ARM_ERRATA_364296
1336 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1337 depends on CPU_V6 && !SMP
1338 help
1339 This options enables the workaround for the 364296 ARM1136
1340 r0p2 erratum (possible cache data corruption with
1341 hit-under-miss enabled). It sets the undocumented bit 31 in
1342 the auxiliary control register and the FI bit in the control
1343 register, thus disabling hit-under-miss without putting the
1344 processor into full low interrupt latency mode. ARM11MPCore
1345 is not affected.
1346
Will Deaconf630c1b2011-09-15 11:45:15 +01001347config ARM_ERRATA_764369
1348 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1349 depends on CPU_V7 && SMP
1350 help
1351 This option enables the workaround for erratum 764369
1352 affecting Cortex-A9 MPCore with two or more processors (all
1353 current revisions). Under certain timing circumstances, a data
1354 cache line maintenance operation by MVA targeting an Inner
1355 Shareable memory region may fail to proceed up to either the
1356 Point of Coherency or to the Point of Unification of the
1357 system. This workaround adds a DSB instruction before the
1358 relevant cache maintenance functions and sets a specific bit
1359 in the diagnostic control register of the SCU.
1360
Will Deacon11ed0ba2011-11-14 17:24:58 +01001361config PL310_ERRATA_769419
1362 bool "PL310 errata: no automatic Store Buffer drain"
1363 depends on CACHE_L2X0
1364 help
1365 On revisions of the PL310 prior to r3p2, the Store Buffer does
1366 not automatically drain. This can cause normal, non-cacheable
1367 writes to be retained when the memory system is idle, leading
1368 to suboptimal I/O performance for drivers using coherent DMA.
1369 This option adds a write barrier to the cpu_idle loop so that,
1370 on systems with an outer cache, the store buffer is drained
1371 explicitly.
1372
Linus Torvalds1da177e2005-04-16 15:20:36 -07001373endmenu
1374
1375source "arch/arm/common/Kconfig"
1376
Linus Torvalds1da177e2005-04-16 15:20:36 -07001377menu "Bus support"
1378
1379config ARM_AMBA
1380 bool
1381
1382config ISA
1383 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001384 help
1385 Find out whether you have ISA slots on your motherboard. ISA is the
1386 name of a bus system, i.e. the way the CPU talks to the other stuff
1387 inside your box. Other bus systems are PCI, EISA, MicroChannel
1388 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1389 newer boards don't support it. If you have ISA, say Y, otherwise N.
1390
Russell King065909b2006-01-04 15:44:16 +00001391# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001392config ISA_DMA
1393 bool
Russell King065909b2006-01-04 15:44:16 +00001394 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001395
Russell King065909b2006-01-04 15:44:16 +00001396# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001397config ISA_DMA_API
1398 bool
Al Viro5cae8412005-05-04 05:39:22 +01001399
Linus Torvalds1da177e2005-04-16 15:20:36 -07001400config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001401 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001402 help
1403 Find out whether you have a PCI motherboard. PCI is the name of a
1404 bus system, i.e. the way the CPU talks to the other stuff inside
1405 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1406 VESA. If you have PCI, say Y, otherwise N.
1407
Anton Vorontsov52882172010-04-19 13:20:49 +01001408config PCI_DOMAINS
1409 bool
1410 depends on PCI
1411
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001412config PCI_NANOENGINE
1413 bool "BSE nanoEngine PCI support"
1414 depends on SA1100_NANOENGINE
1415 help
1416 Enable PCI on the BSE nanoEngine board.
1417
Matthew Wilcox36e23592007-07-10 10:54:40 -06001418config PCI_SYSCALL
1419 def_bool PCI
1420
Linus Torvalds1da177e2005-04-16 15:20:36 -07001421# Select the host bridge type
1422config PCI_HOST_VIA82C505
1423 bool
1424 depends on PCI && ARCH_SHARK
1425 default y
1426
Mike Rapoporta0113a92007-11-25 08:55:34 +01001427config PCI_HOST_ITE8152
1428 bool
1429 depends on PCI && MACH_ARMCORE
1430 default y
1431 select DMABOUNCE
1432
Linus Torvalds1da177e2005-04-16 15:20:36 -07001433source "drivers/pci/Kconfig"
1434
1435source "drivers/pcmcia/Kconfig"
1436
1437endmenu
1438
1439menu "Kernel Features"
1440
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001441source "kernel/time/Kconfig"
1442
Linus Torvalds1da177e2005-04-16 15:20:36 -07001443config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001444 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001445 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001446 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001447 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001448 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
Kukjin Kim10606aa2011-02-14 15:05:27 +09001449 ARCH_EXYNOS4 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
Arnd Bergmannabc3f122011-11-02 02:46:55 +01001450 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE || ARCH_HIGHBANK || SOC_IMX6Q
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001451 depends on MMU
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001452 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001453 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001454 help
1455 This enables support for systems with more than one CPU. If you have
1456 a system with only one CPU, like most personal computers, say N. If
1457 you have a system with more than one CPU, say Y.
1458
1459 If you say N here, the kernel will run on single and multiprocessor
1460 machines, but will use only one CPU of a multiprocessor machine. If
1461 you say Y here, the kernel will run on many, but not all, single
1462 processor machines. On a single processor machine, the kernel will
1463 run faster if you say N here.
1464
Paul Bolle395cf962011-08-15 02:02:26 +02001465 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001466 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001467 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001468
1469 If you don't know what to do here, say N.
1470
Russell Kingf00ec482010-09-04 10:47:48 +01001471config SMP_ON_UP
1472 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1473 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001474 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001475 default y
1476 help
1477 SMP kernels contain instructions which fail on non-SMP processors.
1478 Enabling this option allows the kernel to modify itself to make
1479 these instructions safe. Disabling it allows about 1K of space
1480 savings.
1481
1482 If you don't know what to do here, say Y.
1483
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001484config ARM_CPU_TOPOLOGY
1485 bool "Support cpu topology definition"
1486 depends on SMP && CPU_V7
1487 default y
1488 help
1489 Support ARM cpu topology definition. The MPIDR register defines
1490 affinity between processors which is then used to describe the cpu
1491 topology of an ARM System.
1492
1493config SCHED_MC
1494 bool "Multi-core scheduler support"
1495 depends on ARM_CPU_TOPOLOGY
1496 help
1497 Multi-core scheduler support improves the CPU scheduler's decision
1498 making when dealing with multi-core CPU chips at a cost of slightly
1499 increased overhead in some places. If unsure say N here.
1500
1501config SCHED_SMT
1502 bool "SMT scheduler support"
1503 depends on ARM_CPU_TOPOLOGY
1504 help
1505 Improves the CPU scheduler's decision making when dealing with
1506 MultiThreading at a cost of slightly increased overhead in some
1507 places. If unsure say N here.
1508
Russell Kinga8cbcd92009-05-16 11:51:14 +01001509config HAVE_ARM_SCU
1510 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001511 help
1512 This option enables support for the ARM system coherency unit
1513
Russell Kingf32f4ce2009-05-16 12:14:21 +01001514config HAVE_ARM_TWD
1515 bool
1516 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001517 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001518 help
1519 This options enables support for the ARM timer and watchdog unit
1520
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001521choice
1522 prompt "Memory split"
1523 default VMSPLIT_3G
1524 help
1525 Select the desired split between kernel and user memory.
1526
1527 If you are not absolutely sure what you are doing, leave this
1528 option alone!
1529
1530 config VMSPLIT_3G
1531 bool "3G/1G user/kernel split"
1532 config VMSPLIT_2G
1533 bool "2G/2G user/kernel split"
1534 config VMSPLIT_1G
1535 bool "1G/3G user/kernel split"
1536endchoice
1537
1538config PAGE_OFFSET
1539 hex
1540 default 0x40000000 if VMSPLIT_1G
1541 default 0x80000000 if VMSPLIT_2G
1542 default 0xC0000000
1543
Linus Torvalds1da177e2005-04-16 15:20:36 -07001544config NR_CPUS
1545 int "Maximum number of CPUs (2-32)"
1546 range 2 32
1547 depends on SMP
1548 default "4"
1549
Russell Kinga054a812005-11-02 22:24:33 +00001550config HOTPLUG_CPU
1551 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1552 depends on SMP && HOTPLUG && EXPERIMENTAL
1553 help
1554 Say Y here to experiment with turning CPUs off and on. CPUs
1555 can be controlled through /sys/devices/system/cpu.
1556
Russell King37ee16a2005-11-08 19:08:05 +00001557config LOCAL_TIMERS
1558 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001559 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001560 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001561 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001562 help
1563 Enable support for local timers on SMP platforms, rather then the
1564 legacy IPI broadcast method. Local timers allows the system
1565 accounting to be spread across the timer interval, preventing a
1566 "thundering herd" at every timer tick.
1567
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001568config ARCH_NR_GPIO
1569 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001570 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001571 default 0
1572 help
1573 Maximum number of GPIOs in the system.
1574
1575 If unsure, leave the default value.
1576
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001577source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001578
Russell Kingf8065812006-03-02 22:41:59 +00001579config HZ
1580 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001581 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001582 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001583 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001584 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001585 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001586 default 100
1587
Catalin Marinas16c79652009-07-24 12:33:02 +01001588config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001589 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001590 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001591 select AEABI
1592 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001593 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001594 help
1595 By enabling this option, the kernel will be compiled in
1596 Thumb-2 mode. A compiler/assembler that understand the unified
1597 ARM-Thumb syntax is needed.
1598
1599 If unsure, say N.
1600
Dave Martin6f685c52011-03-03 11:41:12 +01001601config THUMB2_AVOID_R_ARM_THM_JUMP11
1602 bool "Work around buggy Thumb-2 short branch relocations in gas"
1603 depends on THUMB2_KERNEL && MODULES
1604 default y
1605 help
1606 Various binutils versions can resolve Thumb-2 branches to
1607 locally-defined, preemptible global symbols as short-range "b.n"
1608 branch instructions.
1609
1610 This is a problem, because there's no guarantee the final
1611 destination of the symbol, or any candidate locations for a
1612 trampoline, are within range of the branch. For this reason, the
1613 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1614 relocation in modules at all, and it makes little sense to add
1615 support.
1616
1617 The symptom is that the kernel fails with an "unsupported
1618 relocation" error when loading some modules.
1619
1620 Until fixed tools are available, passing
1621 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1622 code which hits this problem, at the cost of a bit of extra runtime
1623 stack usage in some cases.
1624
1625 The problem is described in more detail at:
1626 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1627
1628 Only Thumb-2 kernels are affected.
1629
1630 Unless you are sure your tools don't have this problem, say Y.
1631
Catalin Marinas0becb082009-07-24 12:32:53 +01001632config ARM_ASM_UNIFIED
1633 bool
1634
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001635config AEABI
1636 bool "Use the ARM EABI to compile the kernel"
1637 help
1638 This option allows for the kernel to be compiled using the latest
1639 ARM ABI (aka EABI). This is only useful if you are using a user
1640 space environment that is also compiled with EABI.
1641
1642 Since there are major incompatibilities between the legacy ABI and
1643 EABI, especially with regard to structure member alignment, this
1644 option also changes the kernel syscall calling convention to
1645 disambiguate both ABIs and allow for backward compatibility support
1646 (selected with CONFIG_OABI_COMPAT).
1647
1648 To use this you need GCC version 4.0.0 or later.
1649
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001650config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001651 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001652 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001653 default y
1654 help
1655 This option preserves the old syscall interface along with the
1656 new (ARM EABI) one. It also provides a compatibility layer to
1657 intercept syscalls that have structure arguments which layout
1658 in memory differs between the legacy ABI and the new ARM EABI
1659 (only for non "thumb" binaries). This option adds a tiny
1660 overhead to all syscalls and produces a slightly larger kernel.
1661 If you know you'll be using only pure EABI user space then you
1662 can say N here. If this option is not selected and you attempt
1663 to execute a legacy ABI binary then the result will be
1664 UNPREDICTABLE (in fact it can be predicted that it won't work
1665 at all). If in doubt say Y.
1666
Mel Gormaneb335752009-05-13 17:34:48 +01001667config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001668 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001669
Russell King05944d72006-11-30 20:43:51 +00001670config ARCH_SPARSEMEM_ENABLE
1671 bool
1672
Russell King07a2f732008-10-01 21:39:58 +01001673config ARCH_SPARSEMEM_DEFAULT
1674 def_bool ARCH_SPARSEMEM_ENABLE
1675
Russell King05944d72006-11-30 20:43:51 +00001676config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001677 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001678
Will Deacon7b7bf492011-05-19 13:21:14 +01001679config HAVE_ARCH_PFN_VALID
1680 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1681
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001682config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001683 bool "High Memory Support"
1684 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001685 help
1686 The address space of ARM processors is only 4 Gigabytes large
1687 and it has to accommodate user address space, kernel address
1688 space as well as some memory mapped IO. That means that, if you
1689 have a large amount of physical memory and/or IO, not all of the
1690 memory can be "permanently mapped" by the kernel. The physical
1691 memory that is not permanently mapped is called "high memory".
1692
1693 Depending on the selected kernel/user memory split, minimum
1694 vmalloc space and actual amount of RAM, you may not need this
1695 option which should result in a slightly faster kernel.
1696
1697 If unsure, say n.
1698
Russell King65cec8e2009-08-17 20:02:06 +01001699config HIGHPTE
1700 bool "Allocate 2nd-level pagetables from highmem"
1701 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001702
Jamie Iles1b8873a2010-02-02 20:25:44 +01001703config HW_PERF_EVENTS
1704 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001705 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001706 default y
1707 help
1708 Enable hardware performance counter support for perf events. If
1709 disabled, perf events will use software events only.
1710
Dave Hansen3f22ab22005-06-23 00:07:43 -07001711source "mm/Kconfig"
1712
Magnus Dammc1b2d972010-07-05 10:00:11 +01001713config FORCE_MAX_ZONEORDER
1714 int "Maximum zone order" if ARCH_SHMOBILE
1715 range 11 64 if ARCH_SHMOBILE
1716 default "9" if SA1111
1717 default "11"
1718 help
1719 The kernel memory allocator divides physically contiguous memory
1720 blocks into "zones", where each zone is a power of two number of
1721 pages. This option selects the largest power of two that the kernel
1722 keeps in the memory allocator. If you need to allocate very large
1723 blocks of physically contiguous memory, then you may need to
1724 increase this value.
1725
1726 This config option is actually maximum order plus one. For example,
1727 a value of 11 means that the largest free memory block is 2^10 pages.
1728
Linus Torvalds1da177e2005-04-16 15:20:36 -07001729config LEDS
1730 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001731 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001732 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001733 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1734 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001735 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001736 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001737 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001738 help
1739 If you say Y here, the LEDs on your machine will be used
1740 to provide useful information about your current system status.
1741
1742 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1743 be able to select which LEDs are active using the options below. If
1744 you are compiling a kernel for the EBSA-110 or the LART however, the
1745 red LED will simply flash regularly to indicate that the system is
1746 still functional. It is safe to say Y here if you have a CATS
1747 system, but the driver will do nothing.
1748
1749config LEDS_TIMER
1750 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001751 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1752 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001753 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001754 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001755 default y if ARCH_EBSA110
1756 help
1757 If you say Y here, one of the system LEDs (the green one on the
1758 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1759 will flash regularly to indicate that the system is still
1760 operational. This is mainly useful to kernel hackers who are
1761 debugging unstable kernels.
1762
1763 The LART uses the same LED for both Timer LED and CPU usage LED
1764 functions. You may choose to use both, but the Timer LED function
1765 will overrule the CPU usage LED.
1766
1767config LEDS_CPU
1768 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001769 !ARCH_OMAP) \
1770 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1771 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001772 depends on LEDS
1773 help
1774 If you say Y here, the red LED will be used to give a good real
1775 time indication of CPU usage, by lighting whenever the idle task
1776 is not currently executing.
1777
1778 The LART uses the same LED for both Timer LED and CPU usage LED
1779 functions. You may choose to use both, but the Timer LED function
1780 will overrule the CPU usage LED.
1781
1782config ALIGNMENT_TRAP
1783 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001784 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001785 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001786 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001787 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001788 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001789 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1790 address divisible by 4. On 32-bit ARM processors, these non-aligned
1791 fetch/store instructions will be emulated in software if you say
1792 here, which has a severe performance impact. This is necessary for
1793 correct operation of some network protocols. With an IP-only
1794 configuration it is safe to say N, otherwise say Y.
1795
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001796config UACCESS_WITH_MEMCPY
1797 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1798 depends on MMU && EXPERIMENTAL
1799 default y if CPU_FEROCEON
1800 help
1801 Implement faster copy_to_user and clear_user methods for CPU
1802 cores where a 8-word STM instruction give significantly higher
1803 memory write throughput than a sequence of individual 32bit stores.
1804
1805 A possible side effect is a slight increase in scheduling latency
1806 between threads sharing the same address space if they invoke
1807 such copy operations with large buffers.
1808
1809 However, if the CPU data cache is using a write-allocate mode,
1810 this option is unlikely to provide any performance gain.
1811
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001812config SECCOMP
1813 bool
1814 prompt "Enable seccomp to safely compute untrusted bytecode"
1815 ---help---
1816 This kernel feature is useful for number crunching applications
1817 that may need to compute untrusted bytecode during their
1818 execution. By using pipes or other transports made available to
1819 the process as file descriptors supporting the read/write
1820 syscalls, it's possible to isolate those applications in
1821 their own address space using seccomp. Once seccomp is
1822 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1823 and the task is only allowed to execute a few safe syscalls
1824 defined by each seccomp mode.
1825
Nicolas Pitrec743f382010-05-24 23:55:42 -04001826config CC_STACKPROTECTOR
1827 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001828 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001829 help
1830 This option turns on the -fstack-protector GCC feature. This
1831 feature puts, at the beginning of functions, a canary value on
1832 the stack just before the return address, and validates
1833 the value just before actually returning. Stack based buffer
1834 overflows (that need to overwrite this return address) now also
1835 overwrite the canary, which gets detected and the attack is then
1836 neutralized via a kernel panic.
1837 This feature requires gcc version 4.2 or above.
1838
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001839config DEPRECATED_PARAM_STRUCT
1840 bool "Provide old way to pass kernel parameters"
1841 help
1842 This was deprecated in 2001 and announced to live on for 5 years.
1843 Some old boot loaders still use this way.
1844
Linus Torvalds1da177e2005-04-16 15:20:36 -07001845endmenu
1846
1847menu "Boot options"
1848
Grant Likely9eb8f672011-04-28 14:27:20 -06001849config USE_OF
1850 bool "Flattened Device Tree support"
1851 select OF
1852 select OF_EARLY_FLATTREE
Grant Likely08a543a2011-07-26 03:19:06 -06001853 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001854 help
1855 Include support for flattened device tree machine descriptions.
1856
Linus Torvalds1da177e2005-04-16 15:20:36 -07001857# Compressed boot loader in ROM. Yes, we really want to ask about
1858# TEXT and BSS so we preserve their values in the config files.
1859config ZBOOT_ROM_TEXT
1860 hex "Compressed ROM boot loader base address"
1861 default "0"
1862 help
1863 The physical address at which the ROM-able zImage is to be
1864 placed in the target. Platforms which normally make use of
1865 ROM-able zImage formats normally set this to a suitable
1866 value in their defconfig file.
1867
1868 If ZBOOT_ROM is not enabled, this has no effect.
1869
1870config ZBOOT_ROM_BSS
1871 hex "Compressed ROM boot loader BSS address"
1872 default "0"
1873 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001874 The base address of an area of read/write memory in the target
1875 for the ROM-able zImage which must be available while the
1876 decompressor is running. It must be large enough to hold the
1877 entire decompressed kernel plus an additional 128 KiB.
1878 Platforms which normally make use of ROM-able zImage formats
1879 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001880
1881 If ZBOOT_ROM is not enabled, this has no effect.
1882
1883config ZBOOT_ROM
1884 bool "Compressed boot loader in ROM/flash"
1885 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1886 help
1887 Say Y here if you intend to execute your compressed kernel image
1888 (zImage) directly from ROM or flash. If unsure, say N.
1889
Simon Horman090ab3f2011-04-26 06:29:53 +01001890choice
1891 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1892 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1893 default ZBOOT_ROM_NONE
1894 help
1895 Include experimental SD/MMC loading code in the ROM-able zImage.
1896 With this enabled it is possible to write the the ROM-able zImage
1897 kernel image to an MMC or SD card and boot the kernel straight
1898 from the reset vector. At reset the processor Mask ROM will load
1899 the first part of the the ROM-able zImage which in turn loads the
1900 rest the kernel image to RAM.
1901
1902config ZBOOT_ROM_NONE
1903 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1904 help
1905 Do not load image from SD or MMC
1906
Simon Hormanf45b1142011-01-11 04:01:08 +01001907config ZBOOT_ROM_MMCIF
1908 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001909 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001910 Load image from MMCIF hardware block.
1911
1912config ZBOOT_ROM_SH_MOBILE_SDHI
1913 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1914 help
1915 Load image from SDHI hardware block
1916
1917endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001918
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001919config ARM_APPENDED_DTB
1920 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1921 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1922 help
1923 With this option, the boot code will look for a device tree binary
1924 (DTB) appended to zImage
1925 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1926
1927 This is meant as a backward compatibility convenience for those
1928 systems with a bootloader that can't be upgraded to accommodate
1929 the documented boot protocol using a device tree.
1930
1931 Beware that there is very little in terms of protection against
1932 this option being confused by leftover garbage in memory that might
1933 look like a DTB header after a reboot if no actual DTB is appended
1934 to zImage. Do not leave this option active in a production kernel
1935 if you don't intend to always append a DTB. Proper passing of the
1936 location into r2 of a bootloader provided DTB is always preferable
1937 to this option.
1938
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001939config ARM_ATAG_DTB_COMPAT
1940 bool "Supplement the appended DTB with traditional ATAG information"
1941 depends on ARM_APPENDED_DTB
1942 help
1943 Some old bootloaders can't be updated to a DTB capable one, yet
1944 they provide ATAGs with memory configuration, the ramdisk address,
1945 the kernel cmdline string, etc. Such information is dynamically
1946 provided by the bootloader and can't always be stored in a static
1947 DTB. To allow a device tree enabled kernel to be used with such
1948 bootloaders, this option allows zImage to extract the information
1949 from the ATAG list and store it at run time into the appended DTB.
1950
Linus Torvalds1da177e2005-04-16 15:20:36 -07001951config CMDLINE
1952 string "Default kernel command string"
1953 default ""
1954 help
1955 On some architectures (EBSA110 and CATS), there is currently no way
1956 for the boot loader to pass arguments to the kernel. For these
1957 architectures, you should supply some command-line options at build
1958 time by entering them here. As a minimum, you should specify the
1959 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1960
Victor Boivie4394c122011-05-04 17:07:55 +01001961choice
1962 prompt "Kernel command line type" if CMDLINE != ""
1963 default CMDLINE_FROM_BOOTLOADER
1964
1965config CMDLINE_FROM_BOOTLOADER
1966 bool "Use bootloader kernel arguments if available"
1967 help
1968 Uses the command-line options passed by the boot loader. If
1969 the boot loader doesn't provide any, the default kernel command
1970 string provided in CMDLINE will be used.
1971
1972config CMDLINE_EXTEND
1973 bool "Extend bootloader kernel arguments"
1974 help
1975 The command-line arguments provided by the boot loader will be
1976 appended to the default kernel command string.
1977
Alexander Holler92d20402010-02-16 19:04:53 +01001978config CMDLINE_FORCE
1979 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001980 help
1981 Always use the default kernel command string, even if the boot
1982 loader passes other arguments to the kernel.
1983 This is useful if you cannot or don't want to change the
1984 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001985endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001986
Linus Torvalds1da177e2005-04-16 15:20:36 -07001987config XIP_KERNEL
1988 bool "Kernel Execute-In-Place from ROM"
1989 depends on !ZBOOT_ROM
1990 help
1991 Execute-In-Place allows the kernel to run from non-volatile storage
1992 directly addressable by the CPU, such as NOR flash. This saves RAM
1993 space since the text section of the kernel is not loaded from flash
1994 to RAM. Read-write sections, such as the data section and stack,
1995 are still copied to RAM. The XIP kernel is not compressed since
1996 it has to run directly from flash, so it will take more space to
1997 store it. The flash address used to link the kernel object files,
1998 and for storing it, is configuration dependent. Therefore, if you
1999 say Y here, you must know the proper physical address where to
2000 store the kernel image depending on your own flash memory usage.
2001
2002 Also note that the make target becomes "make xipImage" rather than
2003 "make zImage" or "make Image". The final kernel binary to put in
2004 ROM memory will be arch/arm/boot/xipImage.
2005
2006 If unsure, say N.
2007
2008config XIP_PHYS_ADDR
2009 hex "XIP Kernel Physical Location"
2010 depends on XIP_KERNEL
2011 default "0x00080000"
2012 help
2013 This is the physical address in your flash memory the kernel will
2014 be linked for and stored to. This address is dependent on your
2015 own flash usage.
2016
Richard Purdiec587e4a2007-02-06 21:29:00 +01002017config KEXEC
2018 bool "Kexec system call (EXPERIMENTAL)"
2019 depends on EXPERIMENTAL
2020 help
2021 kexec is a system call that implements the ability to shutdown your
2022 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002023 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002024 you can start any kernel with it, not just Linux.
2025
2026 It is an ongoing process to be certain the hardware in a machine
2027 is properly shutdown, so do not be surprised if this code does not
2028 initially work for you. It may help to enable device hotplugging
2029 support.
2030
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002031config ATAGS_PROC
2032 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01002033 depends on KEXEC
2034 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002035 help
2036 Should the atags used to boot the kernel be exported in an "atags"
2037 file in procfs. Useful with kexec.
2038
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002039config CRASH_DUMP
2040 bool "Build kdump crash kernel (EXPERIMENTAL)"
2041 depends on EXPERIMENTAL
2042 help
2043 Generate crash dump after being started by kexec. This should
2044 be normally only set in special crash dump kernels which are
2045 loaded in the main kernel with kexec-tools into a specially
2046 reserved region and then later executed after a crash by
2047 kdump/kexec. The crash dump kernel must be compiled to a
2048 memory address not used by the main kernel
2049
2050 For more details see Documentation/kdump/kdump.txt
2051
Eric Miaoe69edc792010-07-05 15:56:50 +02002052config AUTO_ZRELADDR
2053 bool "Auto calculation of the decompressed kernel image address"
2054 depends on !ZBOOT_ROM && !ARCH_U300
2055 help
2056 ZRELADDR is the physical address where the decompressed kernel
2057 image will be placed. If AUTO_ZRELADDR is selected, the address
2058 will be determined at run-time by masking the current IP with
2059 0xf8000000. This assumes the zImage being placed in the first 128MB
2060 from start of memory.
2061
Linus Torvalds1da177e2005-04-16 15:20:36 -07002062endmenu
2063
Russell Kingac9d7ef2008-08-18 17:26:00 +01002064menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002065
Ben Dooks89c52ed2009-07-30 23:23:24 +01002066if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002067
2068source "drivers/cpufreq/Kconfig"
2069
Yong Shen64f102b2010-10-21 21:18:59 +08002070config CPU_FREQ_IMX
2071 tristate "CPUfreq driver for i.MX CPUs"
2072 depends on ARCH_MXC && CPU_FREQ
2073 help
2074 This enables the CPUfreq driver for i.MX CPUs.
2075
Linus Torvalds1da177e2005-04-16 15:20:36 -07002076config CPU_FREQ_SA1100
2077 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002078
2079config CPU_FREQ_SA1110
2080 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002081
2082config CPU_FREQ_INTEGRATOR
2083 tristate "CPUfreq driver for ARM Integrator CPUs"
2084 depends on ARCH_INTEGRATOR && CPU_FREQ
2085 default y
2086 help
2087 This enables the CPUfreq driver for ARM Integrator CPUs.
2088
2089 For details, take a look at <file:Documentation/cpu-freq>.
2090
2091 If in doubt, say Y.
2092
Russell King9e2697f2007-12-14 13:30:14 +00002093config CPU_FREQ_PXA
2094 bool
2095 depends on CPU_FREQ && ARCH_PXA && PXA25x
2096 default y
Arnd Bergmannca7d1562011-10-01 22:03:51 +02002097 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002098 select CPU_FREQ_DEFAULT_GOV_USERSPACE
2099
Ben Dooks9d56c022009-07-30 23:23:25 +01002100config CPU_FREQ_S3C
2101 bool
2102 help
2103 Internal configuration node for common cpufreq on Samsung SoC
2104
2105config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002106 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002107 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
2108 select CPU_FREQ_S3C
2109 help
2110 This enables the CPUfreq driver for the Samsung S3C24XX family
2111 of CPUs.
2112
2113 For details, take a look at <file:Documentation/cpu-freq>.
2114
2115 If in doubt, say N.
2116
2117config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002118 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002119 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2120 help
2121 Compile in support for changing the PLL frequency from the
2122 S3C24XX series CPUfreq driver. The PLL takes time to settle
2123 after a frequency change, so by default it is not enabled.
2124
2125 This also means that the PLL tables for the selected CPU(s) will
2126 be built which may increase the size of the kernel image.
2127
2128config CPU_FREQ_S3C24XX_DEBUG
2129 bool "Debug CPUfreq Samsung driver core"
2130 depends on CPU_FREQ_S3C24XX
2131 help
2132 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2133
2134config CPU_FREQ_S3C24XX_IODEBUG
2135 bool "Debug CPUfreq Samsung driver IO timing"
2136 depends on CPU_FREQ_S3C24XX
2137 help
2138 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2139
Ben Dookse6d197a2009-07-30 23:23:42 +01002140config CPU_FREQ_S3C24XX_DEBUGFS
2141 bool "Export debugfs for CPUFreq"
2142 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2143 help
2144 Export status information via debugfs.
2145
Linus Torvalds1da177e2005-04-16 15:20:36 -07002146endif
2147
Russell Kingac9d7ef2008-08-18 17:26:00 +01002148source "drivers/cpuidle/Kconfig"
2149
2150endmenu
2151
Linus Torvalds1da177e2005-04-16 15:20:36 -07002152menu "Floating point emulation"
2153
2154comment "At least one emulation must be selected"
2155
2156config FPE_NWFPE
2157 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002158 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002159 ---help---
2160 Say Y to include the NWFPE floating point emulator in the kernel.
2161 This is necessary to run most binaries. Linux does not currently
2162 support floating point hardware so you need to say Y here even if
2163 your machine has an FPA or floating point co-processor podule.
2164
2165 You may say N here if you are going to load the Acorn FPEmulator
2166 early in the bootup.
2167
2168config FPE_NWFPE_XP
2169 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002170 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002171 help
2172 Say Y to include 80-bit support in the kernel floating-point
2173 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2174 Note that gcc does not generate 80-bit operations by default,
2175 so in most cases this option only enlarges the size of the
2176 floating point emulator without any good reason.
2177
2178 You almost surely want to say N here.
2179
2180config FPE_FASTFPE
2181 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002182 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002183 ---help---
2184 Say Y here to include the FAST floating point emulator in the kernel.
2185 This is an experimental much faster emulator which now also has full
2186 precision for the mantissa. It does not support any exceptions.
2187 It is very simple, and approximately 3-6 times faster than NWFPE.
2188
2189 It should be sufficient for most programs. It may be not suitable
2190 for scientific calculations, but you have to check this for yourself.
2191 If you do not feel you need a faster FP emulation you should better
2192 choose NWFPE.
2193
2194config VFP
2195 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002196 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002197 help
2198 Say Y to include VFP support code in the kernel. This is needed
2199 if your hardware includes a VFP unit.
2200
2201 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2202 release notes and additional status information.
2203
2204 Say N if your target does not have VFP hardware.
2205
Catalin Marinas25ebee02007-09-25 15:22:24 +01002206config VFPv3
2207 bool
2208 depends on VFP
2209 default y if CPU_V7
2210
Catalin Marinasb5872db2008-01-10 19:16:17 +01002211config NEON
2212 bool "Advanced SIMD (NEON) Extension support"
2213 depends on VFPv3 && CPU_V7
2214 help
2215 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2216 Extension.
2217
Linus Torvalds1da177e2005-04-16 15:20:36 -07002218endmenu
2219
2220menu "Userspace binary formats"
2221
2222source "fs/Kconfig.binfmt"
2223
2224config ARTHUR
2225 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002226 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002227 help
2228 Say Y here to include the kernel code necessary if you want to run
2229 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2230 experimental; if this sounds frightening, say N and sleep in peace.
2231 You can also say M here to compile this support as a module (which
2232 will be called arthur).
2233
2234endmenu
2235
2236menu "Power management options"
2237
Russell Kingeceab4a2005-11-15 11:31:41 +00002238source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002239
Johannes Bergf4cb5702007-12-08 02:14:00 +01002240config ARCH_SUSPEND_POSSIBLE
Abhilash Kesavan6b6844d2011-10-04 20:30:22 +09002241 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002242 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
2243 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
Johannes Bergf4cb5702007-12-08 02:14:00 +01002244 def_bool y
2245
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002246config ARM_CPU_SUSPEND
2247 def_bool PM_SLEEP
2248
Linus Torvalds1da177e2005-04-16 15:20:36 -07002249endmenu
2250
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002251source "net/Kconfig"
2252
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002253source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002254
2255source "fs/Kconfig"
2256
Linus Torvalds1da177e2005-04-16 15:20:36 -07002257source "arch/arm/Kconfig.debug"
2258
2259source "security/Kconfig"
2260
2261source "crypto/Kconfig"
2262
2263source "lib/Kconfig"