blob: 92c9c79c140c83b14b7ee628ae077b76f4a86719 [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)
David Daneye39f5602012-01-10 15:10:21 -080019 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040020 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080021 select HAVE_KERNEL_GZIP
22 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010023 select HAVE_KERNEL_LZMA
Peter Zijlstrae360adb2010-10-14 14:01:34 +080024 select HAVE_IRQ_WORK
Jamie Iles7ada1892010-02-02 20:24:58 +010025 select HAVE_PERF_EVENTS
26 select PERF_USE_VMALLOC
Will Deacone513f8b2010-06-25 12:24:53 +010027 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kinge399b1a2011-01-17 15:08:32 +000028 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
Rabin Vincented604532010-11-30 17:36:48 +010029 select HAVE_C_RECORDMCOUNT
Lennert Buytenheke2a93ec2010-11-29 10:06:57 +010030 select HAVE_GENERIC_HARDIRQS
31 select HAVE_SPARSE_IRQ
Thomas Gleixner25a56622011-03-24 12:02:11 +010032 select GENERIC_IRQ_SHOW
Santosh Shilimkar1fb902632011-09-10 11:30:28 +053033 select CPU_PM if (SUSPEND || CPU_IDLE)
Michael S. Tsirkine5bfb722011-11-24 20:57:23 +020034 select GENERIC_PCI_IOMAP
Linus Torvalds1da177e2005-04-16 15:20:36 -070035 help
36 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000037 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070038 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000039 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070040 Europe. There is an ARM Linux project with a web page at
41 <http://www.arm.linux.org.uk/>.
42
Russell King74facff2011-06-02 11:16:22 +010043config ARM_HAS_SG_CHAIN
44 bool
45
Russell King1a189b92008-04-13 21:41:55 +010046config HAVE_PWM
47 bool
48
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010049config MIGHT_HAVE_PCI
50 bool
51
Ralf Baechle75e71532007-02-09 17:08:58 +000052config SYS_SUPPORTS_APM_EMULATION
53 bool
54
Russell King112f38a42010-12-15 19:23:07 +000055config HAVE_SCHED_CLOCK
56 bool
57
David Brownell0a938b92007-03-05 00:30:18 -080058config GENERIC_GPIO
59 bool
David Brownell0a938b92007-03-05 00:30:18 -080060
John Stultz5cfc8ee2010-03-24 00:22:36 +000061config ARCH_USES_GETTIMEOFFSET
62 bool
63 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010064
Kevin Hilman0567a0c2007-03-13 20:29:24 +010065config GENERIC_CLOCKEVENTS
66 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010067
Catalin Marinasa8655e82008-02-04 17:30:57 +010068config GENERIC_CLOCKEVENTS_BROADCAST
69 bool
70 depends on GENERIC_CLOCKEVENTS
Russell King5388a6b2010-07-26 13:19:43 +010071 default y if SMP
Catalin Marinasa8655e82008-02-04 17:30:57 +010072
Rob Herringbf9dd362011-03-04 23:51:59 +010073config KTIME_SCALAR
74 bool
75 default y
76
Linus Walleijbc581772009-09-15 17:30:37 +010077config HAVE_TCM
78 bool
79 select GENERIC_ALLOCATOR
80
Russell Kinge119bff2010-01-10 17:23:29 +000081config HAVE_PROC_CPU
82 bool
83
Al Viro5ea81762007-02-11 15:41:31 +000084config NO_IOPORT
85 bool
Al Viro5ea81762007-02-11 15:41:31 +000086
Linus Torvalds1da177e2005-04-16 15:20:36 -070087config EISA
88 bool
89 ---help---
90 The Extended Industry Standard Architecture (EISA) bus was
91 developed as an open alternative to the IBM MicroChannel bus.
92
93 The EISA bus provided some of the features of the IBM MicroChannel
94 bus while maintaining backward compatibility with cards made for
95 the older ISA bus. The EISA bus saw limited use between 1988 and
96 1995 when it was made obsolete by the PCI bus.
97
98 Say Y here if you are building a kernel for an EISA-based machine.
99
100 Otherwise, say N.
101
102config SBUS
103 bool
104
105config MCA
106 bool
107 help
108 MicroChannel Architecture is found in some IBM PS/2 machines and
109 laptops. It is a bus system similar to PCI or ISA. See
110 <file:Documentation/mca.txt> (and especially the web page given
111 there) before attempting to build an MCA bus kernel.
112
Russell Kingf16fb1e2007-04-28 09:59:37 +0100113config STACKTRACE_SUPPORT
114 bool
115 default y
116
Nicolas Pitref76e9152008-04-24 01:31:46 -0400117config HAVE_LATENCYTOP_SUPPORT
118 bool
119 depends on !SMP
120 default y
121
Russell Kingf16fb1e2007-04-28 09:59:37 +0100122config LOCKDEP_SUPPORT
123 bool
124 default y
125
Russell King7ad1bcb2006-08-27 12:07:02 +0100126config TRACE_IRQFLAGS_SUPPORT
127 bool
128 default y
129
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100130config HARDIRQS_SW_RESEND
131 bool
132 default y
133
134config GENERIC_IRQ_PROBE
135 bool
136 default y
137
Nick Piggin95c354f2008-01-30 13:31:20 +0100138config GENERIC_LOCKBREAK
139 bool
140 default y
141 depends on SMP && PREEMPT
142
Linus Torvalds1da177e2005-04-16 15:20:36 -0700143config RWSEM_GENERIC_SPINLOCK
144 bool
145 default y
146
147config RWSEM_XCHGADD_ALGORITHM
148 bool
149
David Howellsf0d1b0b2006-12-08 02:37:49 -0800150config ARCH_HAS_ILOG2_U32
151 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800152
153config ARCH_HAS_ILOG2_U64
154 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800155
Ben Dooks89c52ed2009-07-30 23:23:24 +0100156config ARCH_HAS_CPUFREQ
157 bool
158 help
159 Internal node to signify that the ARCH has CPUFREQ support
160 and that the relevant menu configurations are displayed for
161 it.
162
Kevin Hilmanc7b0aff2010-10-01 22:13:47 +0100163config ARCH_HAS_CPU_IDLE_WAIT
164 def_bool y
165
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800166config GENERIC_HWEIGHT
167 bool
168 default y
169
Linus Torvalds1da177e2005-04-16 15:20:36 -0700170config GENERIC_CALIBRATE_DELAY
171 bool
172 default y
173
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100174config ARCH_MAY_HAVE_PC_FDC
175 bool
176
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800177config ZONE_DMA
178 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800179
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800180config NEED_DMA_MAP_STATE
181 def_bool y
182
Linus Torvalds1da177e2005-04-16 15:20:36 -0700183config GENERIC_ISA_DMA
184 bool
185
Linus Torvalds1da177e2005-04-16 15:20:36 -0700186config FIQ
187 bool
188
Al Viro034d2f52005-12-19 16:27:59 -0500189config ARCH_MTD_XIP
190 bool
191
Hyok S. Choic760fc12006-03-27 15:18:50 +0100192config VECTORS_BASE
193 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900194 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100195 default DRAM_BASE if REMAP_VECTORS_TO_RAM
196 default 0x00000000
197 help
198 The base address of exception vectors.
199
Russell Kingdc21af92011-01-04 19:09:43 +0000200config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100201 bool "Patch physical to virtual translations at runtime" if EMBEDDED
202 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100203 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000204 depends on !ARCH_REALVIEW || !SPARSEMEM
205 help
Russell King111e9a52011-05-12 10:02:42 +0100206 Patch phys-to-virt and virt-to-phys translation functions at
207 boot and module load time according to the position of the
208 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000209
Russell King111e9a52011-05-12 10:02:42 +0100210 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100211 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000212
Russell Kingc1beced2011-08-10 10:23:45 +0100213 Only disable this option if you know that you do not require
214 this feature (eg, building a kernel for a single machine) and
215 you need to shrink the kernel to the minimal size.
216
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400217config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400218 bool
Russell King111e9a52011-05-12 10:02:42 +0100219 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400220 Select this when mach/memory.h is required to provide special
221 definitions for this platform. The need for mach/memory.h should
222 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400223
224config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100225 hex "Physical address of main memory" if MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400226 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre974c0722011-12-02 23:09:42 +0100227 default DRAM_BASE if !MMU
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400228 help
229 Please provide the physical address corresponding to the
230 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000231
Simon Glass87e040b2011-08-16 23:44:26 +0100232config GENERIC_BUG
233 def_bool y
234 depends on BUG
235
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236source "init/Kconfig"
237
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700238source "kernel/Kconfig.freezer"
239
Linus Torvalds1da177e2005-04-16 15:20:36 -0700240menu "System Type"
241
Hyok S. Choi3c427972009-07-24 12:35:00 +0100242config MMU
243 bool "MMU-based Paged Memory Management Support"
244 default y
245 help
246 Select if you want MMU-based virtualised addressing space
247 support by paged memory management. If unsure, say 'Y'.
248
Russell Kingccf50e22010-03-15 19:03:06 +0000249#
250# The "ARM system type" choice list is ordered alphabetically by option
251# text. Please add new entries in the option alphabetic order.
252#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253choice
254 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000255 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700256
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100257config ARCH_INTEGRATOR
258 bool "ARM Ltd. Integrator family"
259 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100260 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100261 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900262 select HAVE_MACH_CLKDEV
Linus Walleij9904f792011-12-09 10:29:23 +0100263 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000264 select ICST
Russell King13edd862010-01-15 21:49:23 +0000265 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000266 select PLAT_VERSATILE
Russell Kingc41b16f2011-01-19 15:32:15 +0000267 select PLAT_VERSATILE_FPGA_IRQ
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400268 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100269 help
270 Support for ARM's Integrator platform.
271
272config ARCH_REALVIEW
273 bool "ARM Ltd. RealView family"
274 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100275 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900276 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000277 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100278 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100279 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000280 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000281 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000282 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100283 select GPIO_PL061 if GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400284 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100285 help
286 This enables support for ARM Ltd RealView boards.
287
288config ARCH_VERSATILE
289 bool "ARM Ltd. Versatile family"
290 select ARM_AMBA
291 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100292 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900293 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000294 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100295 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100296 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000297 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000298 select PLAT_VERSATILE_CLCD
Russell Kingc41b16f2011-01-19 15:32:15 +0000299 select PLAT_VERSATILE_FPGA_IRQ
Russell Kinge3887712010-01-14 13:30:16 +0000300 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100301 help
302 This enables support for ARM Ltd Versatile board.
303
Russell Kingceade892010-02-11 21:44:53 +0000304config ARCH_VEXPRESS
305 bool "ARM Ltd. Versatile Express family"
306 select ARCH_WANT_OPTIONAL_GPIOLIB
307 select ARM_AMBA
308 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100309 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900310 select HAVE_MACH_CLKDEV
Russell Kingceade892010-02-11 21:44:53 +0000311 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000312 select HAVE_CLK
Nick Bowler95c34f82011-01-21 15:51:06 +0100313 select HAVE_PATA_PLATFORM
Russell Kingceade892010-02-11 21:44:53 +0000314 select ICST
315 select PLAT_VERSATILE
Russell King0fb44b92011-01-18 20:13:51 +0000316 select PLAT_VERSATILE_CLCD
Russell Kingceade892010-02-11 21:44:53 +0000317 help
318 This enables support for the ARM Ltd Versatile Express boards.
319
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100320config ARCH_AT91
321 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100322 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700323 select HAVE_CLK
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100324 select CLKDEV_LOOKUP
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100325 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100326 This enables support for systems based on the Atmel AT91RM9200,
Jean-Christophe PLAGNIOL-VILLARD9918cea2012-01-26 14:07:09 +0100327 AT91SAM9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100328
Russell Kingccf50e22010-03-15 19:03:06 +0000329config ARCH_BCMRING
330 bool "Broadcom BCMRING"
331 depends on MMU
332 select CPU_V6
333 select ARM_AMBA
Russell King82d63732011-05-12 13:43:39 +0100334 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100335 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000336 select GENERIC_CLOCKEVENTS
337 select ARCH_WANT_OPTIONAL_GPIOLIB
338 help
339 Support for Broadcom's BCMRing platform.
340
Rob Herring220e6cf2011-06-07 10:02:55 -0500341config ARCH_HIGHBANK
342 bool "Calxeda Highbank-based"
343 select ARCH_WANT_OPTIONAL_GPIOLIB
344 select ARM_AMBA
345 select ARM_GIC
346 select ARM_TIMER_SP804
Dave Martin22d80372011-12-12 16:17:34 +0000347 select CACHE_L2X0
Rob Herring220e6cf2011-06-07 10:02:55 -0500348 select CLKDEV_LOOKUP
349 select CPU_V7
350 select GENERIC_CLOCKEVENTS
351 select HAVE_ARM_SCU
Dave Martin3b556582011-12-07 15:38:04 +0000352 select HAVE_SMP
Rob Herring220e6cf2011-06-07 10:02:55 -0500353 select USE_OF
354 help
355 Support for the Calxeda Highbank SoC based boards.
356
Linus Torvalds1da177e2005-04-16 15:20:36 -0700357config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100358 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000359 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000360 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400361 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000362 help
363 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700364
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300365config ARCH_CNS3XXX
366 bool "Cavium Networks CNS3XXX family"
Imre Kaloz00d27112011-07-07 12:19:09 +0200367 select CPU_V6K
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300368 select GENERIC_CLOCKEVENTS
369 select ARM_GIC
Dave Martince5ea9f2011-11-29 15:56:19 +0000370 select MIGHT_HAVE_CACHE_L2X0
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100371 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400372 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300373 help
374 Support for Cavium Networks CNS3XXX platform.
375
Russell King788c9702009-04-26 14:21:59 +0100376config ARCH_GEMINI
377 bool "Cortina Systems Gemini"
378 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100379 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000380 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100381 help
382 Support for the Cortina Systems Gemini family SoCs
383
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200384config ARCH_PRIMA2
385 bool "CSR SiRFSoC PRIMA2 ARM Cortex A9 Platform"
386 select CPU_V7
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200387 select NO_IOPORT
388 select GENERIC_CLOCKEVENTS
389 select CLKDEV_LOOKUP
390 select GENERIC_IRQ_CHIP
Dave Martince5ea9f2011-11-29 15:56:19 +0000391 select MIGHT_HAVE_CACHE_L2X0
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200392 select USE_OF
393 select ZONE_DMA
394 help
395 Support for CSR SiRFSoC ARM Cortex A9 Platform
396
Linus Torvalds1da177e2005-04-16 15:20:36 -0700397config ARCH_EBSA110
398 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000399 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100400 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000401 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000402 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400403 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700404 help
405 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000406 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700407 Ethernet interface, two PCMCIA sockets, two serial ports and a
408 parallel port.
409
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000410config ARCH_EP93XX
411 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000412 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000413 select ARM_AMBA
414 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100415 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700416 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100417 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000418 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100419 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000420 help
421 This enables support for the Cirrus EP93xx series of CPUs.
422
Linus Torvalds1da177e2005-04-16 15:20:36 -0700423config ARCH_FOOTBRIDGE
424 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000425 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000427 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200428 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400429 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000430 help
431 Support for systems based on the DC21285 companion chip
432 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700433
Russell King788c9702009-04-26 14:21:59 +0100434config ARCH_MXC
435 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100436 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100437 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100438 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100439 select CLKSRC_MMIO
Shawn Guo8b6c44f2011-06-07 13:59:14 +0800440 select GENERIC_IRQ_CHIP
Jan Weitzelc124bef2011-03-17 13:44:30 +0100441 select HAVE_SCHED_CLOCK
Sascha Hauerffa2ea32011-09-20 14:31:24 +0200442 select MULTI_IRQ_HANDLER
Russell King788c9702009-04-26 14:21:59 +0100443 help
444 Support for Freescale MXC/iMX-based family of processors
445
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800446config ARCH_MXS
447 bool "Freescale MXS-based"
448 select GENERIC_CLOCKEVENTS
449 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100450 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100451 select CLKSRC_MMIO
Shawn Guo6abda3e2011-12-20 16:12:34 +0800452 select HAVE_CLK_PREPARE
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800453 help
454 Support for Freescale MXS-based family of processors
455
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100456config ARCH_NETX
457 bool "Hilscher NetX based"
Russell King234b6ced2011-05-08 14:09:47 +0100458 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000459 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100460 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100461 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000462 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100463 This enables support for systems based on the Hilscher NetX Soc
464
465config ARCH_H720X
466 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000467 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100468 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000469 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100470 help
471 This enables support for systems based on the Hynix HMS720x
472
Russell King3b938be2007-05-12 11:25:44 +0100473config ARCH_IOP13XX
474 bool "IOP13xx-based"
475 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000476 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100477 select PLAT_IOP
478 select PCI
479 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100480 select VMSPLIT_1G
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400481 select NEED_MACH_MEMORY_H
Russell King3b938be2007-05-12 11:25:44 +0100482 help
483 Support for Intel's IOP13XX (XScale) family of processors.
484
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100485config ARCH_IOP32X
486 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100487 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000488 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100489 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100490 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100491 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000492 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100493 Support for Intel's 80219 and IOP32X (XScale) family of
494 processors.
495
496config ARCH_IOP33X
497 bool "IOP33x-based"
498 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000499 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100500 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100501 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100502 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100503 help
504 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700505
Russell King3b938be2007-05-12 11:25:44 +0100506config ARCH_IXP23XX
507 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100508 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000509 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100510 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000511 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400512 select NEED_MACH_MEMORY_H
Dan Williams285f5fa2006-12-07 02:59:39 +0100513 help
Russell King3b938be2007-05-12 11:25:44 +0100514 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700515
516config ARCH_IXP2000
517 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100518 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000519 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100520 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000521 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400522 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000523 help
524 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700525
Russell King3b938be2007-05-12 11:25:44 +0100526config ARCH_IXP4XX
527 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100528 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100529 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000530 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100531 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100532 select GENERIC_CLOCKEVENTS
Russell King5b0d4952010-12-15 21:23:13 +0000533 select HAVE_SCHED_CLOCK
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100534 select MIGHT_HAVE_PCI
Russell King485bdde2008-10-17 14:00:43 +0100535 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100536 help
Russell King3b938be2007-05-12 11:25:44 +0100537 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100538
Saeed Bisharaedabd382009-08-06 15:12:43 +0300539config ARCH_DOVE
540 bool "Marvell Dove"
Konstantin Porotchkin7b769bb2011-04-07 13:49:41 +0300541 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300542 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300543 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300544 select GENERIC_CLOCKEVENTS
545 select PLAT_ORION
546 help
547 Support for the Marvell Dove SoC 88AP510
548
Saeed Bishara651c74c2008-06-22 22:45:06 +0200549config ARCH_KIRKWOOD
550 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000551 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200552 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700553 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200554 select GENERIC_CLOCKEVENTS
555 select PLAT_ORION
556 help
557 Support for the following Marvell Kirkwood series SoCs:
558 88F6180, 88F6192 and 88F6281.
559
Kevin Wells40805942010-07-27 08:49:04 -0700560config ARCH_LPC32XX
561 bool "NXP LPC32XX"
Russell King234b6ced2011-05-08 14:09:47 +0100562 select CLKSRC_MMIO
Kevin Wells40805942010-07-27 08:49:04 -0700563 select CPU_ARM926T
564 select ARCH_REQUIRE_GPIOLIB
565 select HAVE_IDE
566 select ARM_AMBA
567 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100568 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700569 select GENERIC_CLOCKEVENTS
570 help
571 Support for the NXP LPC32XX family of processors
572
Russell King788c9702009-04-26 14:21:59 +0100573config ARCH_MV78XX0
574 bool "Marvell MV78xx0"
575 select CPU_FEROCEON
576 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700577 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100578 select GENERIC_CLOCKEVENTS
579 select PLAT_ORION
580 help
581 Support for the following Marvell MV78xx0 series SoCs:
582 MV781x0, MV782x0.
583
584config ARCH_ORION5X
585 bool "Marvell Orion"
586 depends on MMU
587 select CPU_FEROCEON
588 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700589 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100590 select GENERIC_CLOCKEVENTS
591 select PLAT_ORION
592 help
593 Support for the following Marvell Orion 5x series SoCs:
594 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
595 Orion-2 (5281), Orion-1-90 (6183).
596
597config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500598 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100599 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100600 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100601 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100602 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800603 select GPIO_PXA
Russell King28bb7bc2010-12-15 21:46:48 +0000604 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100605 select TICK_ONESHOT
606 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400607 select SPARSE_IRQ
Leo Yan3c7241b2011-08-15 11:09:52 +0800608 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100609 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500610 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100611
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100612config ARCH_KS8695
613 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000614 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100615 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000616 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400617 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100618 help
619 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
620 System-on-Chip devices.
621
Russell King788c9702009-04-26 14:21:59 +0100622config ARCH_W90X900
623 bool "Nuvoton W90X900 CPU"
624 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100625 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100626 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100627 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100628 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200629 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100630 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
631 At present, the w90x900 has been renamed nuc900, regarding
632 the ARM series product line, you can login the following
633 link address to know more.
634
635 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
636 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400637
Erik Gillingc5f80062010-01-21 16:53:02 -0800638config ARCH_TEGRA
639 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000640 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100641 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800642 select GENERIC_CLOCKEVENTS
643 select GENERIC_GPIO
644 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000645 select HAVE_SCHED_CLOCK
Dave Martin3b556582011-12-07 15:38:04 +0000646 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000647 select MIGHT_HAVE_CACHE_L2X0
Colin Cross7056d422010-04-22 20:30:13 -0700648 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800649 help
650 This enables support for NVIDIA Tegra based systems (Tegra APX,
651 Tegra 6xx and Tegra 2 series).
652
Jamie Ilesaf756552011-07-25 17:36:42 +0100653config ARCH_PICOXCELL
654 bool "Picochip picoXcell"
655 select ARCH_REQUIRE_GPIOLIB
656 select ARM_PATCH_PHYS_VIRT
657 select ARM_VIC
658 select CPU_V6K
659 select DW_APB_TIMER
660 select GENERIC_CLOCKEVENTS
661 select GENERIC_GPIO
662 select HAVE_SCHED_CLOCK
663 select HAVE_TCM
664 select NO_IOPORT
Jamie Iles98e27a52011-12-12 20:17:37 +0000665 select SPARSE_IRQ
Jamie Ilesaf756552011-07-25 17:36:42 +0100666 select USE_OF
667 help
668 This enables support for systems based on the Picochip picoXcell
669 family of Femtocell devices. The picoxcell support requires device tree
670 for all boards.
671
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100672config ARCH_PNX4008
673 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000674 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100675 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000676 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100677 help
678 This enables support for Philips PNX4008 mobile platform.
679
Linus Torvalds1da177e2005-04-16 15:20:36 -0700680config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700681 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100682 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500683 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100684 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100685 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100686 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700687 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100688 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800689 select GPIO_PXA
Russell King7ce83012010-12-15 21:48:15 +0000690 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000691 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800692 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800693 select SPARSE_IRQ
Eric Miao4e234cc2011-04-04 15:06:33 +0800694 select AUTO_ZRELADDR
Eric Miao8a97ae22011-05-18 21:30:04 +0800695 select MULTI_IRQ_HANDLER
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +0200696 select ARM_CPU_SUSPEND if PM
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200697 select HAVE_IDE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000698 help
eric miao2c8086a2007-09-11 19:13:17 -0700699 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700700
Russell King788c9702009-04-26 14:21:59 +0100701config ARCH_MSM
702 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500703 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800704 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700705 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800706 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800707 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800708 Support for Qualcomm MSM/QSD based systems. This runs on the
709 apps processor of the MSM/QSD and depends on a shared memory
710 interface to the modem processor which runs the baseband
711 stack and controls some vital subsystems
712 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800713
Magnus Dammc793c1b2010-02-05 11:14:49 +0000714config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900715 bool "Renesas SH-Mobile / R-Mobile"
716 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900717 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900718 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000719 select HAVE_SMP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900720 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000721 select MIGHT_HAVE_CACHE_L2X0
Paul Mundt6d72ad32010-11-16 16:10:20 +0900722 select NO_IOPORT
723 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000724 select MULTI_IRQ_HANDLER
Rafael J. Wysockie3e01092011-07-01 22:13:56 +0200725 select PM_GENERIC_DOMAINS if PM
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400726 select NEED_MACH_MEMORY_H
Magnus Dammc793c1b2010-02-05 11:14:49 +0000727 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900728 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000729
Linus Torvalds1da177e2005-04-16 15:20:36 -0700730config ARCH_RPC
731 bool "RiscPC"
732 select ARCH_ACORN
733 select FIQ
734 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100735 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100736 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000737 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000738 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100739 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000740 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200741 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400742 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700743 help
744 On the Acorn Risc-PC, Linux can support the internal IDE disk and
745 CD-ROM interface, serial and parallel port, and the floppy drive.
746
747config ARCH_SA1100
748 bool "SA1100-based"
Russell King234b6ced2011-05-08 14:09:47 +0100749 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000750 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100751 select ISA
Russell King05944d72006-11-30 20:43:51 +0000752 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500753 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100754 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000755 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100756 select GENERIC_CLOCKEVENTS
Russell King8bd92662012-01-19 11:48:23 +0000757 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000758 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100759 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700760 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200761 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400762 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000763 help
764 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700765
766config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900767 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800768 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100769 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700770 select HAVE_CLK
Thomas Abrahame83626f2011-06-14 19:12:26 +0900771 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000772 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900773 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700774 help
775 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
776 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000777 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700778
Ben Dooks63b1f512010-04-30 16:32:26 +0900779 Note, the S3C2416 and the S3C2450 are so close that they even share
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300780 the same SoC ID code. This means that there is no separate machine
Ben Dooks63b1f512010-04-30 16:32:26 +0900781 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
782
Ben Dooksa08ab632008-10-21 14:06:39 +0100783config ARCH_S3C64XX
784 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000785 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900786 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900787 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100788 select HAVE_CLK
Mark Brown67003972011-10-11 08:57:11 +0900789 select HAVE_TCM
Thomas Abraham226e85f2011-06-14 19:12:26 +0900790 select CLKDEV_LOOKUP
Ben Dooks89f0ce72010-01-26 15:49:15 +0900791 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000792 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100793 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900794 select ARCH_REQUIRE_GPIOLIB
795 select SAMSUNG_CLKSRC
796 select SAMSUNG_IRQ_VIC_TIMER
Ben Dooks89f0ce72010-01-26 15:49:15 +0900797 select S3C_GPIO_TRACK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900798 select S3C_DEV_NAND
799 select USB_ARCH_HAS_OHCI
800 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900801 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900802 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100803 help
804 Samsung S3C64XX series based systems
805
Kukjin Kim49b7a492010-09-07 15:47:18 +0900806config ARCH_S5P64X0
807 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900808 select CPU_V6
809 select GENERIC_GPIO
810 select HAVE_CLK
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900811 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900812 select CLKSRC_MMIO
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900813 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900814 select GENERIC_CLOCKEVENTS
815 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900816 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900817 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900818 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900819 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
820 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900821
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200822config ARCH_S5PC100
823 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900824 select GENERIC_GPIO
825 select HAVE_CLK
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900826 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900827 select CPU_V7
Ben Dooks925c68c2010-05-20 20:48:28 +0900828 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900829 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900830 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900831 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900832 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200833 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900834
Kukjin Kim170f4e42010-02-24 16:40:44 +0900835config ARCH_S5PV210
836 bool "Samsung S5PV210/S5PC110"
837 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900838 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900839 select ARCH_HAS_HOLES_MEMORYMODEL
Kukjin Kim170f4e42010-02-24 16:40:44 +0900840 select GENERIC_GPIO
841 select HAVE_CLK
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900842 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900843 select CLKSRC_MMIO
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900844 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900845 select GENERIC_CLOCKEVENTS
846 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900847 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900848 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900849 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400850 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900851 help
852 Samsung S5PV210/S5PC110 series based systems
853
Kukjin Kim83014572011-11-06 13:54:56 +0900854config ARCH_EXYNOS
855 bool "SAMSUNG EXYNOS"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900856 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900857 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900858 select ARCH_HAS_HOLES_MEMORYMODEL
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900859 select GENERIC_GPIO
860 select HAVE_CLK
Thomas Abrahambadc4f22011-06-14 19:12:27 +0900861 select CLKDEV_LOOKUP
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900862 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900863 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900864 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900865 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900866 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400867 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900868 help
Kukjin Kim83014572011-11-06 13:54:56 +0900869 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900870
Linus Torvalds1da177e2005-04-16 15:20:36 -0700871config ARCH_SHARK
872 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000873 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100874 select ISA
875 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100876 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100877 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000878 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400879 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000880 help
881 Support for the StrongARM based Digital DNARD machine, also known
882 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700883
Linus Walleijd98aac72009-04-27 10:21:46 +0100884config ARCH_U300
885 bool "ST-Ericsson U300 Series"
886 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100887 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100888 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000889 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100890 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100891 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200892 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100893 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100894 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100895 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900896 select HAVE_MACH_CLKDEV
Linus Walleijd98aac72009-04-27 10:21:46 +0100897 select GENERIC_GPIO
Linus Walleijcc890cd2011-09-08 09:04:51 +0100898 select ARCH_REQUIRE_GPIOLIB
Linus Walleijd98aac72009-04-27 10:21:46 +0100899 help
900 Support for ST-Ericsson U300 series mobile platforms.
901
Russell Kingccf50e22010-03-15 19:03:06 +0000902config ARCH_U8500
903 bool "ST-Ericsson U8500 Series"
904 select CPU_V7
905 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000906 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100907 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100908 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100909 select ARCH_HAS_CPUFREQ
Dave Martin3b556582011-12-07 15:38:04 +0000910 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000911 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000912 help
913 Support for ST-Ericsson's Ux500 architecture
914
915config ARCH_NOMADIK
916 bool "STMicroelectronics Nomadik"
917 select ARM_AMBA
918 select ARM_VIC
919 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100920 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000921 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000922 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000923 select ARCH_REQUIRE_GPIOLIB
924 help
925 Support for the Nomadik platform by ST-Ericsson
926
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100927config ARCH_DAVINCI
928 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100929 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700930 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100931 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700932 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100933 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700934 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100935 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530936 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100937 help
938 Support for TI's DaVinci platform.
939
Russell King3b938be2007-05-12 11:25:44 +0100940config ARCH_OMAP
941 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700942 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700943 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100944 select ARCH_HAS_CPUFREQ
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700945 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700946 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000947 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800948 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100949 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200950 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100951
viresh kumarcee37e52010-04-01 12:31:05 +0100952config PLAT_SPEAR
953 bool "ST SPEAr"
954 select ARM_AMBA
955 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100956 select CLKDEV_LOOKUP
Russell Kingd6e15d72011-05-08 17:10:14 +0100957 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100958 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100959 select HAVE_CLK
960 help
961 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
962
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100963config ARCH_VT8500
964 bool "VIA/WonderMedia 85xx"
965 select CPU_ARM926T
966 select GENERIC_GPIO
967 select ARCH_HAS_CPUFREQ
968 select GENERIC_CLOCKEVENTS
969 select ARCH_REQUIRE_GPIOLIB
970 select HAVE_PWM
971 help
972 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +0800973
John Linnb85a3ef2011-06-20 11:47:27 -0600974config ARCH_ZYNQ
975 bool "Xilinx Zynq ARM Cortex A9 Platform"
Binghua Duan02c981c2011-07-08 17:40:12 +0800976 select CPU_V7
Binghua Duan02c981c2011-07-08 17:40:12 +0800977 select GENERIC_CLOCKEVENTS
978 select CLKDEV_LOOKUP
John Linnb85a3ef2011-06-20 11:47:27 -0600979 select ARM_GIC
980 select ARM_AMBA
981 select ICST
Dave Martince5ea9f2011-11-29 15:56:19 +0000982 select MIGHT_HAVE_CACHE_L2X0
Binghua Duan02c981c2011-07-08 17:40:12 +0800983 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +0800984 help
John Linnb85a3ef2011-06-20 11:47:27 -0600985 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -0700986endchoice
987
Russell Kingccf50e22010-03-15 19:03:06 +0000988#
989# This is sorted alphabetically by mach-* pathname. However, plat-*
990# Kconfigs may be included either alphabetically (according to the
991# plat- suffix) or along side the corresponding mach-* source.
992#
Russell King95b8f202010-01-14 11:43:54 +0000993source "arch/arm/mach-at91/Kconfig"
994
995source "arch/arm/mach-bcmring/Kconfig"
996
Linus Torvalds1da177e2005-04-16 15:20:36 -0700997source "arch/arm/mach-clps711x/Kconfig"
998
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300999source "arch/arm/mach-cns3xxx/Kconfig"
1000
Russell King95b8f202010-01-14 11:43:54 +00001001source "arch/arm/mach-davinci/Kconfig"
1002
1003source "arch/arm/mach-dove/Kconfig"
1004
Lennert Buytenheke7736d42006-03-20 17:10:13 +00001005source "arch/arm/mach-ep93xx/Kconfig"
1006
Linus Torvalds1da177e2005-04-16 15:20:36 -07001007source "arch/arm/mach-footbridge/Kconfig"
1008
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001009source "arch/arm/mach-gemini/Kconfig"
1010
Russell King95b8f202010-01-14 11:43:54 +00001011source "arch/arm/mach-h720x/Kconfig"
1012
Linus Torvalds1da177e2005-04-16 15:20:36 -07001013source "arch/arm/mach-integrator/Kconfig"
1014
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001015source "arch/arm/mach-iop32x/Kconfig"
1016
1017source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001018
Dan Williams285f5fa2006-12-07 02:59:39 +01001019source "arch/arm/mach-iop13xx/Kconfig"
1020
Linus Torvalds1da177e2005-04-16 15:20:36 -07001021source "arch/arm/mach-ixp4xx/Kconfig"
1022
1023source "arch/arm/mach-ixp2000/Kconfig"
1024
Lennert Buytenhekc4713072006-03-28 21:18:54 +01001025source "arch/arm/mach-ixp23xx/Kconfig"
1026
Russell King95b8f202010-01-14 11:43:54 +00001027source "arch/arm/mach-kirkwood/Kconfig"
1028
1029source "arch/arm/mach-ks8695/Kconfig"
1030
Kevin Wells40805942010-07-27 08:49:04 -07001031source "arch/arm/mach-lpc32xx/Kconfig"
1032
Russell King95b8f202010-01-14 11:43:54 +00001033source "arch/arm/mach-msm/Kconfig"
1034
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001035source "arch/arm/mach-mv78xx0/Kconfig"
1036
Russell King95b8f202010-01-14 11:43:54 +00001037source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001038
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001039source "arch/arm/mach-mxs/Kconfig"
1040
Russell King95b8f202010-01-14 11:43:54 +00001041source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001042
Russell King95b8f202010-01-14 11:43:54 +00001043source "arch/arm/mach-nomadik/Kconfig"
1044source "arch/arm/plat-nomadik/Kconfig"
1045
Tony Lindgrend48af152005-07-10 19:58:17 +01001046source "arch/arm/plat-omap/Kconfig"
1047
1048source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001049
Tony Lindgren1dbae812005-11-10 14:26:51 +00001050source "arch/arm/mach-omap2/Kconfig"
1051
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001052source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001053
Russell King95b8f202010-01-14 11:43:54 +00001054source "arch/arm/mach-pxa/Kconfig"
1055source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001056
Russell King95b8f202010-01-14 11:43:54 +00001057source "arch/arm/mach-mmp/Kconfig"
1058
1059source "arch/arm/mach-realview/Kconfig"
1060
1061source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001062
Ben Dookscf383672009-11-10 00:14:58 +00001063source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001064source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001065source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001066
viresh kumarcee37e52010-04-01 12:31:05 +01001067source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001068
1069if ARCH_S3C2410
Linus Torvalds1da177e2005-04-16 15:20:36 -07001070source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001071source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +09001072source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001073source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +01001074source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001075endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001076
Ben Dooksa08ab632008-10-21 14:06:39 +01001077if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001078source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001079endif
1080
Kukjin Kim49b7a492010-09-07 15:47:18 +09001081source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001082
Byungho Min5a7652f2009-06-23 21:39:42 +09001083source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001084
Kukjin Kim170f4e42010-02-24 16:40:44 +09001085source "arch/arm/mach-s5pv210/Kconfig"
1086
Kukjin Kim83014572011-11-06 13:54:56 +09001087source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001088
Russell King882d01f2010-03-02 23:40:15 +00001089source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001090
Erik Gillingc5f80062010-01-21 16:53:02 -08001091source "arch/arm/mach-tegra/Kconfig"
1092
Russell King95b8f202010-01-14 11:43:54 +00001093source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001094
Russell King95b8f202010-01-14 11:43:54 +00001095source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001096
1097source "arch/arm/mach-versatile/Kconfig"
1098
Russell Kingceade892010-02-11 21:44:53 +00001099source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001100source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001101
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001102source "arch/arm/mach-vt8500/Kconfig"
1103
wanzongshun7ec80dd2008-12-03 03:55:38 +01001104source "arch/arm/mach-w90x900/Kconfig"
1105
Linus Torvalds1da177e2005-04-16 15:20:36 -07001106# Definitions to make life easier
1107config ARCH_ACORN
1108 bool
1109
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001110config PLAT_IOP
1111 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001112 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001113 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001114
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001115config PLAT_ORION
1116 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001117 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001118 select GENERIC_IRQ_CHIP
Russell Kingf06a1622010-12-15 21:55:06 +00001119 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001120
Eric Miaobd5ce432009-01-20 12:06:01 +08001121config PLAT_PXA
1122 bool
1123
Russell Kingf4b8b312010-01-14 12:48:06 +00001124config PLAT_VERSATILE
1125 bool
1126
Russell Kinge3887712010-01-14 13:30:16 +00001127config ARM_TIMER_SP804
1128 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001129 select CLKSRC_MMIO
Russell Kinge3887712010-01-14 13:30:16 +00001130
Linus Torvalds1da177e2005-04-16 15:20:36 -07001131source arch/arm/mm/Kconfig
1132
Russell King958cab02011-12-11 10:04:00 +00001133config ARM_NR_BANKS
1134 int
1135 default 16 if ARCH_EP93XX
1136 default 8
1137
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001138config IWMMXT
1139 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001140 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1141 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001142 help
1143 Enable support for iWMMXt context switching at run time if
1144 running on a CPU that supports it.
1145
Linus Torvalds1da177e2005-04-16 15:20:36 -07001146config XSCALE_PMU
1147 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001148 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001149 default y
1150
Jamie Iles0f4f0672010-02-02 20:23:15 +01001151config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001152 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001153 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001154 default y
1155 bool
1156
eric miao52108642010-12-13 09:42:34 +01001157config MULTI_IRQ_HANDLER
1158 bool
1159 help
1160 Allow each machine to specify it's own IRQ handler at run time.
1161
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001162if !MMU
1163source "arch/arm/Kconfig-nommu"
1164endif
1165
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001166config ARM_ERRATA_411920
1167 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001168 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001169 help
1170 Invalidation of the Instruction Cache operation can
1171 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1172 It does not affect the MPCore. This option enables the ARM Ltd.
1173 recommended workaround.
1174
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001175config ARM_ERRATA_430973
1176 bool "ARM errata: Stale prediction on replaced interworking branch"
1177 depends on CPU_V7
1178 help
1179 This option enables the workaround for the 430973 Cortex-A8
1180 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1181 interworking branch is replaced with another code sequence at the
1182 same virtual address, whether due to self-modifying code or virtual
1183 to physical address re-mapping, Cortex-A8 does not recover from the
1184 stale interworking branch prediction. This results in Cortex-A8
1185 executing the new code sequence in the incorrect ARM or Thumb state.
1186 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1187 and also flushes the branch target cache at every context switch.
1188 Note that setting specific bits in the ACTLR register may not be
1189 available in non-secure mode.
1190
Catalin Marinas855c5512009-04-30 17:06:15 +01001191config ARM_ERRATA_458693
1192 bool "ARM errata: Processor deadlock when a false hazard is created"
1193 depends on CPU_V7
1194 help
1195 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1196 erratum. For very specific sequences of memory operations, it is
1197 possible for a hazard condition intended for a cache line to instead
1198 be incorrectly associated with a different cache line. This false
1199 hazard might then cause a processor deadlock. The workaround enables
1200 the L1 caching of the NEON accesses and disables the PLD instruction
1201 in the ACTLR register. Note that setting specific bits in the ACTLR
1202 register may not be available in non-secure mode.
1203
Catalin Marinas0516e462009-04-30 17:06:20 +01001204config ARM_ERRATA_460075
1205 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1206 depends on CPU_V7
1207 help
1208 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1209 erratum. Any asynchronous access to the L2 cache may encounter a
1210 situation in which recent store transactions to the L2 cache are lost
1211 and overwritten with stale memory contents from external memory. The
1212 workaround disables the write-allocate mode for the L2 cache via the
1213 ACTLR register. Note that setting specific bits in the ACTLR register
1214 may not be available in non-secure mode.
1215
Will Deacon9f050272010-09-14 09:51:43 +01001216config ARM_ERRATA_742230
1217 bool "ARM errata: DMB operation may be faulty"
1218 depends on CPU_V7 && SMP
1219 help
1220 This option enables the workaround for the 742230 Cortex-A9
1221 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1222 between two write operations may not ensure the correct visibility
1223 ordering of the two writes. This workaround sets a specific bit in
1224 the diagnostic register of the Cortex-A9 which causes the DMB
1225 instruction to behave as a DSB, ensuring the correct behaviour of
1226 the two writes.
1227
Will Deacona672e992010-09-14 09:53:02 +01001228config ARM_ERRATA_742231
1229 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1230 depends on CPU_V7 && SMP
1231 help
1232 This option enables the workaround for the 742231 Cortex-A9
1233 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1234 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1235 accessing some data located in the same cache line, may get corrupted
1236 data due to bad handling of the address hazard when the line gets
1237 replaced from one of the CPUs at the same time as another CPU is
1238 accessing it. This workaround sets specific bits in the diagnostic
1239 register of the Cortex-A9 which reduces the linefill issuing
1240 capabilities of the processor.
1241
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001242config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001243 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001244 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001245 help
1246 The PL310 L2 cache controller implements three types of Clean &
1247 Invalidate maintenance operations: by Physical Address
1248 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1249 They are architecturally defined to behave as the execution of a
1250 clean operation followed immediately by an invalidate operation,
1251 both performing to the same memory location. This functionality
1252 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001253 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001254
1255config ARM_ERRATA_720789
1256 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001257 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001258 help
1259 This option enables the workaround for the 720789 Cortex-A9 (prior to
1260 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1261 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1262 As a consequence of this erratum, some TLB entries which should be
1263 invalidated are not, resulting in an incoherency in the system page
1264 tables. The workaround changes the TLB flushing routines to invalidate
1265 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001266
Russell King1f0090a2011-03-16 23:35:25 +00001267config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001268 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001269 depends on CACHE_L2X0
1270 help
1271 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1272 operation (offset 0x7FC). This operation runs in background so that
1273 PL310 can handle normal accesses while it is in progress. Under very
1274 rare circumstances, due to this erratum, write data can be lost when
1275 PL310 treats a cacheable write transaction during a Clean &
1276 Invalidate by Way operation.
1277
Will Deacon475d92f2010-09-28 14:02:02 +01001278config ARM_ERRATA_743622
1279 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1280 depends on CPU_V7
1281 help
1282 This option enables the workaround for the 743622 Cortex-A9
1283 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1284 optimisation in the Cortex-A9 Store Buffer may lead to data
1285 corruption. This workaround sets a specific bit in the diagnostic
1286 register of the Cortex-A9 which disables the Store Buffer
1287 optimisation, preventing the defect from occurring. This has no
1288 visible impact on the overall performance or power consumption of the
1289 processor.
1290
Will Deacon9a27c272011-02-18 16:36:35 +01001291config ARM_ERRATA_751472
1292 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001293 depends on CPU_V7
Will Deacon9a27c272011-02-18 16:36:35 +01001294 help
1295 This option enables the workaround for the 751472 Cortex-A9 (prior
1296 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1297 completion of a following broadcasted operation if the second
1298 operation is received by a CPU before the ICIALLUIS has completed,
1299 potentially leading to corrupted entries in the cache or TLB.
1300
Will Deaconfa0ce402011-11-14 17:24:57 +01001301config PL310_ERRATA_753970
1302 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001303 depends on CACHE_PL310
1304 help
1305 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1306
1307 Under some condition the effect of cache sync operation on
1308 the store buffer still remains when the operation completes.
1309 This means that the store buffer is always asked to drain and
1310 this prevents it from merging any further writes. The workaround
1311 is to replace the normal offset of cache sync operation (0x730)
1312 by another offset targeting an unmapped PL310 register 0x740.
1313 This has the same effect as the cache sync operation: store buffer
1314 drain and waiting for all buffers empty.
1315
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001316config ARM_ERRATA_754322
1317 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1318 depends on CPU_V7
1319 help
1320 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1321 r3p*) erratum. A speculative memory access may cause a page table walk
1322 which starts prior to an ASID switch but completes afterwards. This
1323 can populate the micro-TLB with a stale entry which may be hit with
1324 the new ASID. This workaround places two dsb instructions in the mm
1325 switching code so that no page table walks can cross the ASID switch.
1326
Will Deacon5dab26af2011-03-04 12:38:54 +01001327config ARM_ERRATA_754327
1328 bool "ARM errata: no automatic Store Buffer drain"
1329 depends on CPU_V7 && SMP
1330 help
1331 This option enables the workaround for the 754327 Cortex-A9 (prior to
1332 r2p0) erratum. The Store Buffer does not have any automatic draining
1333 mechanism and therefore a livelock may occur if an external agent
1334 continuously polls a memory location waiting to observe an update.
1335 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1336 written polling loops from denying visibility of updates to memory.
1337
Catalin Marinas145e10e2011-08-15 11:04:41 +01001338config ARM_ERRATA_364296
1339 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1340 depends on CPU_V6 && !SMP
1341 help
1342 This options enables the workaround for the 364296 ARM1136
1343 r0p2 erratum (possible cache data corruption with
1344 hit-under-miss enabled). It sets the undocumented bit 31 in
1345 the auxiliary control register and the FI bit in the control
1346 register, thus disabling hit-under-miss without putting the
1347 processor into full low interrupt latency mode. ARM11MPCore
1348 is not affected.
1349
Will Deaconf630c1b2011-09-15 11:45:15 +01001350config ARM_ERRATA_764369
1351 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1352 depends on CPU_V7 && SMP
1353 help
1354 This option enables the workaround for erratum 764369
1355 affecting Cortex-A9 MPCore with two or more processors (all
1356 current revisions). Under certain timing circumstances, a data
1357 cache line maintenance operation by MVA targeting an Inner
1358 Shareable memory region may fail to proceed up to either the
1359 Point of Coherency or to the Point of Unification of the
1360 system. This workaround adds a DSB instruction before the
1361 relevant cache maintenance functions and sets a specific bit
1362 in the diagnostic control register of the SCU.
1363
Will Deacon11ed0ba2011-11-14 17:24:58 +01001364config PL310_ERRATA_769419
1365 bool "PL310 errata: no automatic Store Buffer drain"
1366 depends on CACHE_L2X0
1367 help
1368 On revisions of the PL310 prior to r3p2, the Store Buffer does
1369 not automatically drain. This can cause normal, non-cacheable
1370 writes to be retained when the memory system is idle, leading
1371 to suboptimal I/O performance for drivers using coherent DMA.
1372 This option adds a write barrier to the cpu_idle loop so that,
1373 on systems with an outer cache, the store buffer is drained
1374 explicitly.
1375
Linus Torvalds1da177e2005-04-16 15:20:36 -07001376endmenu
1377
1378source "arch/arm/common/Kconfig"
1379
Linus Torvalds1da177e2005-04-16 15:20:36 -07001380menu "Bus support"
1381
1382config ARM_AMBA
1383 bool
1384
1385config ISA
1386 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001387 help
1388 Find out whether you have ISA slots on your motherboard. ISA is the
1389 name of a bus system, i.e. the way the CPU talks to the other stuff
1390 inside your box. Other bus systems are PCI, EISA, MicroChannel
1391 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1392 newer boards don't support it. If you have ISA, say Y, otherwise N.
1393
Russell King065909b2006-01-04 15:44:16 +00001394# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001395config ISA_DMA
1396 bool
Russell King065909b2006-01-04 15:44:16 +00001397 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001398
Russell King065909b2006-01-04 15:44:16 +00001399# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001400config ISA_DMA_API
1401 bool
Al Viro5cae8412005-05-04 05:39:22 +01001402
Linus Torvalds1da177e2005-04-16 15:20:36 -07001403config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001404 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001405 help
1406 Find out whether you have a PCI motherboard. PCI is the name of a
1407 bus system, i.e. the way the CPU talks to the other stuff inside
1408 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1409 VESA. If you have PCI, say Y, otherwise N.
1410
Anton Vorontsov52882172010-04-19 13:20:49 +01001411config PCI_DOMAINS
1412 bool
1413 depends on PCI
1414
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001415config PCI_NANOENGINE
1416 bool "BSE nanoEngine PCI support"
1417 depends on SA1100_NANOENGINE
1418 help
1419 Enable PCI on the BSE nanoEngine board.
1420
Matthew Wilcox36e23592007-07-10 10:54:40 -06001421config PCI_SYSCALL
1422 def_bool PCI
1423
Linus Torvalds1da177e2005-04-16 15:20:36 -07001424# Select the host bridge type
1425config PCI_HOST_VIA82C505
1426 bool
1427 depends on PCI && ARCH_SHARK
1428 default y
1429
Mike Rapoporta0113a92007-11-25 08:55:34 +01001430config PCI_HOST_ITE8152
1431 bool
1432 depends on PCI && MACH_ARMCORE
1433 default y
1434 select DMABOUNCE
1435
Linus Torvalds1da177e2005-04-16 15:20:36 -07001436source "drivers/pci/Kconfig"
1437
1438source "drivers/pcmcia/Kconfig"
1439
1440endmenu
1441
1442menu "Kernel Features"
1443
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001444source "kernel/time/Kconfig"
1445
Dave Martin3b556582011-12-07 15:38:04 +00001446config HAVE_SMP
1447 bool
1448 help
1449 This option should be selected by machines which have an SMP-
1450 capable CPU.
1451
1452 The only effect of this option is to make the SMP-related
1453 options available to the user for configuration.
1454
Linus Torvalds1da177e2005-04-16 15:20:36 -07001455config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001456 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001457 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001458 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001459 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001460 depends on MMU
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001461 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001462 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001463 help
1464 This enables support for systems with more than one CPU. If you have
1465 a system with only one CPU, like most personal computers, say N. If
1466 you have a system with more than one CPU, say Y.
1467
1468 If you say N here, the kernel will run on single and multiprocessor
1469 machines, but will use only one CPU of a multiprocessor machine. If
1470 you say Y here, the kernel will run on many, but not all, single
1471 processor machines. On a single processor machine, the kernel will
1472 run faster if you say N here.
1473
Paul Bolle395cf962011-08-15 02:02:26 +02001474 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001475 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001476 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001477
1478 If you don't know what to do here, say N.
1479
Russell Kingf00ec482010-09-04 10:47:48 +01001480config SMP_ON_UP
1481 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1482 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001483 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001484 default y
1485 help
1486 SMP kernels contain instructions which fail on non-SMP processors.
1487 Enabling this option allows the kernel to modify itself to make
1488 these instructions safe. Disabling it allows about 1K of space
1489 savings.
1490
1491 If you don't know what to do here, say Y.
1492
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001493config ARM_CPU_TOPOLOGY
1494 bool "Support cpu topology definition"
1495 depends on SMP && CPU_V7
1496 default y
1497 help
1498 Support ARM cpu topology definition. The MPIDR register defines
1499 affinity between processors which is then used to describe the cpu
1500 topology of an ARM System.
1501
1502config SCHED_MC
1503 bool "Multi-core scheduler support"
1504 depends on ARM_CPU_TOPOLOGY
1505 help
1506 Multi-core scheduler support improves the CPU scheduler's decision
1507 making when dealing with multi-core CPU chips at a cost of slightly
1508 increased overhead in some places. If unsure say N here.
1509
1510config SCHED_SMT
1511 bool "SMT scheduler support"
1512 depends on ARM_CPU_TOPOLOGY
1513 help
1514 Improves the CPU scheduler's decision making when dealing with
1515 MultiThreading at a cost of slightly increased overhead in some
1516 places. If unsure say N here.
1517
Russell Kinga8cbcd92009-05-16 11:51:14 +01001518config HAVE_ARM_SCU
1519 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001520 help
1521 This option enables support for the ARM system coherency unit
1522
Russell Kingf32f4ce2009-05-16 12:14:21 +01001523config HAVE_ARM_TWD
1524 bool
1525 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001526 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001527 help
1528 This options enables support for the ARM timer and watchdog unit
1529
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001530choice
1531 prompt "Memory split"
1532 default VMSPLIT_3G
1533 help
1534 Select the desired split between kernel and user memory.
1535
1536 If you are not absolutely sure what you are doing, leave this
1537 option alone!
1538
1539 config VMSPLIT_3G
1540 bool "3G/1G user/kernel split"
1541 config VMSPLIT_2G
1542 bool "2G/2G user/kernel split"
1543 config VMSPLIT_1G
1544 bool "1G/3G user/kernel split"
1545endchoice
1546
1547config PAGE_OFFSET
1548 hex
1549 default 0x40000000 if VMSPLIT_1G
1550 default 0x80000000 if VMSPLIT_2G
1551 default 0xC0000000
1552
Linus Torvalds1da177e2005-04-16 15:20:36 -07001553config NR_CPUS
1554 int "Maximum number of CPUs (2-32)"
1555 range 2 32
1556 depends on SMP
1557 default "4"
1558
Russell Kinga054a812005-11-02 22:24:33 +00001559config HOTPLUG_CPU
1560 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1561 depends on SMP && HOTPLUG && EXPERIMENTAL
1562 help
1563 Say Y here to experiment with turning CPUs off and on. CPUs
1564 can be controlled through /sys/devices/system/cpu.
1565
Russell King37ee16a2005-11-08 19:08:05 +00001566config LOCAL_TIMERS
1567 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001568 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001569 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001570 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001571 help
1572 Enable support for local timers on SMP platforms, rather then the
1573 legacy IPI broadcast method. Local timers allows the system
1574 accounting to be spread across the timer interval, preventing a
1575 "thundering herd" at every timer tick.
1576
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001577config ARCH_NR_GPIO
1578 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001579 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Peter De Schrijver (NVIDIA)4f3f2582011-12-21 10:50:42 +01001580 default 350 if ARCH_U8500
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001581 default 0
1582 help
1583 Maximum number of GPIOs in the system.
1584
1585 If unsure, leave the default value.
1586
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001587source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001588
Russell Kingf8065812006-03-02 22:41:59 +00001589config HZ
1590 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001591 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001592 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001593 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001594 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001595 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001596 default 100
1597
Catalin Marinas16c79652009-07-24 12:33:02 +01001598config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001599 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001600 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001601 select AEABI
1602 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001603 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001604 help
1605 By enabling this option, the kernel will be compiled in
1606 Thumb-2 mode. A compiler/assembler that understand the unified
1607 ARM-Thumb syntax is needed.
1608
1609 If unsure, say N.
1610
Dave Martin6f685c52011-03-03 11:41:12 +01001611config THUMB2_AVOID_R_ARM_THM_JUMP11
1612 bool "Work around buggy Thumb-2 short branch relocations in gas"
1613 depends on THUMB2_KERNEL && MODULES
1614 default y
1615 help
1616 Various binutils versions can resolve Thumb-2 branches to
1617 locally-defined, preemptible global symbols as short-range "b.n"
1618 branch instructions.
1619
1620 This is a problem, because there's no guarantee the final
1621 destination of the symbol, or any candidate locations for a
1622 trampoline, are within range of the branch. For this reason, the
1623 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1624 relocation in modules at all, and it makes little sense to add
1625 support.
1626
1627 The symptom is that the kernel fails with an "unsupported
1628 relocation" error when loading some modules.
1629
1630 Until fixed tools are available, passing
1631 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1632 code which hits this problem, at the cost of a bit of extra runtime
1633 stack usage in some cases.
1634
1635 The problem is described in more detail at:
1636 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1637
1638 Only Thumb-2 kernels are affected.
1639
1640 Unless you are sure your tools don't have this problem, say Y.
1641
Catalin Marinas0becb082009-07-24 12:32:53 +01001642config ARM_ASM_UNIFIED
1643 bool
1644
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001645config AEABI
1646 bool "Use the ARM EABI to compile the kernel"
1647 help
1648 This option allows for the kernel to be compiled using the latest
1649 ARM ABI (aka EABI). This is only useful if you are using a user
1650 space environment that is also compiled with EABI.
1651
1652 Since there are major incompatibilities between the legacy ABI and
1653 EABI, especially with regard to structure member alignment, this
1654 option also changes the kernel syscall calling convention to
1655 disambiguate both ABIs and allow for backward compatibility support
1656 (selected with CONFIG_OABI_COMPAT).
1657
1658 To use this you need GCC version 4.0.0 or later.
1659
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001660config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001661 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001662 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001663 default y
1664 help
1665 This option preserves the old syscall interface along with the
1666 new (ARM EABI) one. It also provides a compatibility layer to
1667 intercept syscalls that have structure arguments which layout
1668 in memory differs between the legacy ABI and the new ARM EABI
1669 (only for non "thumb" binaries). This option adds a tiny
1670 overhead to all syscalls and produces a slightly larger kernel.
1671 If you know you'll be using only pure EABI user space then you
1672 can say N here. If this option is not selected and you attempt
1673 to execute a legacy ABI binary then the result will be
1674 UNPREDICTABLE (in fact it can be predicted that it won't work
1675 at all). If in doubt say Y.
1676
Mel Gormaneb335752009-05-13 17:34:48 +01001677config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001678 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001679
Russell King05944d72006-11-30 20:43:51 +00001680config ARCH_SPARSEMEM_ENABLE
1681 bool
1682
Russell King07a2f732008-10-01 21:39:58 +01001683config ARCH_SPARSEMEM_DEFAULT
1684 def_bool ARCH_SPARSEMEM_ENABLE
1685
Russell King05944d72006-11-30 20:43:51 +00001686config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001687 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001688
Will Deacon7b7bf492011-05-19 13:21:14 +01001689config HAVE_ARCH_PFN_VALID
1690 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1691
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001692config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001693 bool "High Memory Support"
1694 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001695 help
1696 The address space of ARM processors is only 4 Gigabytes large
1697 and it has to accommodate user address space, kernel address
1698 space as well as some memory mapped IO. That means that, if you
1699 have a large amount of physical memory and/or IO, not all of the
1700 memory can be "permanently mapped" by the kernel. The physical
1701 memory that is not permanently mapped is called "high memory".
1702
1703 Depending on the selected kernel/user memory split, minimum
1704 vmalloc space and actual amount of RAM, you may not need this
1705 option which should result in a slightly faster kernel.
1706
1707 If unsure, say n.
1708
Russell King65cec8e2009-08-17 20:02:06 +01001709config HIGHPTE
1710 bool "Allocate 2nd-level pagetables from highmem"
1711 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001712
Jamie Iles1b8873a2010-02-02 20:25:44 +01001713config HW_PERF_EVENTS
1714 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001715 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001716 default y
1717 help
1718 Enable hardware performance counter support for perf events. If
1719 disabled, perf events will use software events only.
1720
Dave Hansen3f22ab22005-06-23 00:07:43 -07001721source "mm/Kconfig"
1722
Magnus Dammc1b2d972010-07-05 10:00:11 +01001723config FORCE_MAX_ZONEORDER
1724 int "Maximum zone order" if ARCH_SHMOBILE
1725 range 11 64 if ARCH_SHMOBILE
1726 default "9" if SA1111
1727 default "11"
1728 help
1729 The kernel memory allocator divides physically contiguous memory
1730 blocks into "zones", where each zone is a power of two number of
1731 pages. This option selects the largest power of two that the kernel
1732 keeps in the memory allocator. If you need to allocate very large
1733 blocks of physically contiguous memory, then you may need to
1734 increase this value.
1735
1736 This config option is actually maximum order plus one. For example,
1737 a value of 11 means that the largest free memory block is 2^10 pages.
1738
Linus Torvalds1da177e2005-04-16 15:20:36 -07001739config LEDS
1740 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001741 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001742 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001743 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1744 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001745 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001746 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001747 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001748 help
1749 If you say Y here, the LEDs on your machine will be used
1750 to provide useful information about your current system status.
1751
1752 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1753 be able to select which LEDs are active using the options below. If
1754 you are compiling a kernel for the EBSA-110 or the LART however, the
1755 red LED will simply flash regularly to indicate that the system is
1756 still functional. It is safe to say Y here if you have a CATS
1757 system, but the driver will do nothing.
1758
1759config LEDS_TIMER
1760 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001761 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1762 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001763 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001764 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001765 default y if ARCH_EBSA110
1766 help
1767 If you say Y here, one of the system LEDs (the green one on the
1768 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1769 will flash regularly to indicate that the system is still
1770 operational. This is mainly useful to kernel hackers who are
1771 debugging unstable kernels.
1772
1773 The LART uses the same LED for both Timer LED and CPU usage LED
1774 functions. You may choose to use both, but the Timer LED function
1775 will overrule the CPU usage LED.
1776
1777config LEDS_CPU
1778 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001779 !ARCH_OMAP) \
1780 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1781 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001782 depends on LEDS
1783 help
1784 If you say Y here, the red LED will be used to give a good real
1785 time indication of CPU usage, by lighting whenever the idle task
1786 is not currently executing.
1787
1788 The LART uses the same LED for both Timer LED and CPU usage LED
1789 functions. You may choose to use both, but the Timer LED function
1790 will overrule the CPU usage LED.
1791
1792config ALIGNMENT_TRAP
1793 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001794 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001795 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001796 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001797 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001798 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001799 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1800 address divisible by 4. On 32-bit ARM processors, these non-aligned
1801 fetch/store instructions will be emulated in software if you say
1802 here, which has a severe performance impact. This is necessary for
1803 correct operation of some network protocols. With an IP-only
1804 configuration it is safe to say N, otherwise say Y.
1805
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001806config UACCESS_WITH_MEMCPY
1807 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1808 depends on MMU && EXPERIMENTAL
1809 default y if CPU_FEROCEON
1810 help
1811 Implement faster copy_to_user and clear_user methods for CPU
1812 cores where a 8-word STM instruction give significantly higher
1813 memory write throughput than a sequence of individual 32bit stores.
1814
1815 A possible side effect is a slight increase in scheduling latency
1816 between threads sharing the same address space if they invoke
1817 such copy operations with large buffers.
1818
1819 However, if the CPU data cache is using a write-allocate mode,
1820 this option is unlikely to provide any performance gain.
1821
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001822config SECCOMP
1823 bool
1824 prompt "Enable seccomp to safely compute untrusted bytecode"
1825 ---help---
1826 This kernel feature is useful for number crunching applications
1827 that may need to compute untrusted bytecode during their
1828 execution. By using pipes or other transports made available to
1829 the process as file descriptors supporting the read/write
1830 syscalls, it's possible to isolate those applications in
1831 their own address space using seccomp. Once seccomp is
1832 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1833 and the task is only allowed to execute a few safe syscalls
1834 defined by each seccomp mode.
1835
Nicolas Pitrec743f382010-05-24 23:55:42 -04001836config CC_STACKPROTECTOR
1837 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001838 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001839 help
1840 This option turns on the -fstack-protector GCC feature. This
1841 feature puts, at the beginning of functions, a canary value on
1842 the stack just before the return address, and validates
1843 the value just before actually returning. Stack based buffer
1844 overflows (that need to overwrite this return address) now also
1845 overwrite the canary, which gets detected and the attack is then
1846 neutralized via a kernel panic.
1847 This feature requires gcc version 4.2 or above.
1848
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001849config DEPRECATED_PARAM_STRUCT
1850 bool "Provide old way to pass kernel parameters"
1851 help
1852 This was deprecated in 2001 and announced to live on for 5 years.
1853 Some old boot loaders still use this way.
1854
Linus Torvalds1da177e2005-04-16 15:20:36 -07001855endmenu
1856
1857menu "Boot options"
1858
Grant Likely9eb8f672011-04-28 14:27:20 -06001859config USE_OF
1860 bool "Flattened Device Tree support"
1861 select OF
1862 select OF_EARLY_FLATTREE
Grant Likely08a543a2011-07-26 03:19:06 -06001863 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001864 help
1865 Include support for flattened device tree machine descriptions.
1866
Linus Torvalds1da177e2005-04-16 15:20:36 -07001867# Compressed boot loader in ROM. Yes, we really want to ask about
1868# TEXT and BSS so we preserve their values in the config files.
1869config ZBOOT_ROM_TEXT
1870 hex "Compressed ROM boot loader base address"
1871 default "0"
1872 help
1873 The physical address at which the ROM-able zImage is to be
1874 placed in the target. Platforms which normally make use of
1875 ROM-able zImage formats normally set this to a suitable
1876 value in their defconfig file.
1877
1878 If ZBOOT_ROM is not enabled, this has no effect.
1879
1880config ZBOOT_ROM_BSS
1881 hex "Compressed ROM boot loader BSS address"
1882 default "0"
1883 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001884 The base address of an area of read/write memory in the target
1885 for the ROM-able zImage which must be available while the
1886 decompressor is running. It must be large enough to hold the
1887 entire decompressed kernel plus an additional 128 KiB.
1888 Platforms which normally make use of ROM-able zImage formats
1889 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001890
1891 If ZBOOT_ROM is not enabled, this has no effect.
1892
1893config ZBOOT_ROM
1894 bool "Compressed boot loader in ROM/flash"
1895 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1896 help
1897 Say Y here if you intend to execute your compressed kernel image
1898 (zImage) directly from ROM or flash. If unsure, say N.
1899
Simon Horman090ab3f2011-04-26 06:29:53 +01001900choice
1901 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1902 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1903 default ZBOOT_ROM_NONE
1904 help
1905 Include experimental SD/MMC loading code in the ROM-able zImage.
1906 With this enabled it is possible to write the the ROM-able zImage
1907 kernel image to an MMC or SD card and boot the kernel straight
1908 from the reset vector. At reset the processor Mask ROM will load
1909 the first part of the the ROM-able zImage which in turn loads the
1910 rest the kernel image to RAM.
1911
1912config ZBOOT_ROM_NONE
1913 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1914 help
1915 Do not load image from SD or MMC
1916
Simon Hormanf45b1142011-01-11 04:01:08 +01001917config ZBOOT_ROM_MMCIF
1918 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001919 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001920 Load image from MMCIF hardware block.
1921
1922config ZBOOT_ROM_SH_MOBILE_SDHI
1923 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1924 help
1925 Load image from SDHI hardware block
1926
1927endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001928
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001929config ARM_APPENDED_DTB
1930 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1931 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1932 help
1933 With this option, the boot code will look for a device tree binary
1934 (DTB) appended to zImage
1935 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1936
1937 This is meant as a backward compatibility convenience for those
1938 systems with a bootloader that can't be upgraded to accommodate
1939 the documented boot protocol using a device tree.
1940
1941 Beware that there is very little in terms of protection against
1942 this option being confused by leftover garbage in memory that might
1943 look like a DTB header after a reboot if no actual DTB is appended
1944 to zImage. Do not leave this option active in a production kernel
1945 if you don't intend to always append a DTB. Proper passing of the
1946 location into r2 of a bootloader provided DTB is always preferable
1947 to this option.
1948
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001949config ARM_ATAG_DTB_COMPAT
1950 bool "Supplement the appended DTB with traditional ATAG information"
1951 depends on ARM_APPENDED_DTB
1952 help
1953 Some old bootloaders can't be updated to a DTB capable one, yet
1954 they provide ATAGs with memory configuration, the ramdisk address,
1955 the kernel cmdline string, etc. Such information is dynamically
1956 provided by the bootloader and can't always be stored in a static
1957 DTB. To allow a device tree enabled kernel to be used with such
1958 bootloaders, this option allows zImage to extract the information
1959 from the ATAG list and store it at run time into the appended DTB.
1960
Linus Torvalds1da177e2005-04-16 15:20:36 -07001961config CMDLINE
1962 string "Default kernel command string"
1963 default ""
1964 help
1965 On some architectures (EBSA110 and CATS), there is currently no way
1966 for the boot loader to pass arguments to the kernel. For these
1967 architectures, you should supply some command-line options at build
1968 time by entering them here. As a minimum, you should specify the
1969 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1970
Victor Boivie4394c122011-05-04 17:07:55 +01001971choice
1972 prompt "Kernel command line type" if CMDLINE != ""
1973 default CMDLINE_FROM_BOOTLOADER
1974
1975config CMDLINE_FROM_BOOTLOADER
1976 bool "Use bootloader kernel arguments if available"
1977 help
1978 Uses the command-line options passed by the boot loader. If
1979 the boot loader doesn't provide any, the default kernel command
1980 string provided in CMDLINE will be used.
1981
1982config CMDLINE_EXTEND
1983 bool "Extend bootloader kernel arguments"
1984 help
1985 The command-line arguments provided by the boot loader will be
1986 appended to the default kernel command string.
1987
Alexander Holler92d20402010-02-16 19:04:53 +01001988config CMDLINE_FORCE
1989 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001990 help
1991 Always use the default kernel command string, even if the boot
1992 loader passes other arguments to the kernel.
1993 This is useful if you cannot or don't want to change the
1994 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001995endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001996
Linus Torvalds1da177e2005-04-16 15:20:36 -07001997config XIP_KERNEL
1998 bool "Kernel Execute-In-Place from ROM"
Catalin Marinas497b7e92011-11-22 17:30:32 +00001999 depends on !ZBOOT_ROM && !ARM_LPAE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002000 help
2001 Execute-In-Place allows the kernel to run from non-volatile storage
2002 directly addressable by the CPU, such as NOR flash. This saves RAM
2003 space since the text section of the kernel is not loaded from flash
2004 to RAM. Read-write sections, such as the data section and stack,
2005 are still copied to RAM. The XIP kernel is not compressed since
2006 it has to run directly from flash, so it will take more space to
2007 store it. The flash address used to link the kernel object files,
2008 and for storing it, is configuration dependent. Therefore, if you
2009 say Y here, you must know the proper physical address where to
2010 store the kernel image depending on your own flash memory usage.
2011
2012 Also note that the make target becomes "make xipImage" rather than
2013 "make zImage" or "make Image". The final kernel binary to put in
2014 ROM memory will be arch/arm/boot/xipImage.
2015
2016 If unsure, say N.
2017
2018config XIP_PHYS_ADDR
2019 hex "XIP Kernel Physical Location"
2020 depends on XIP_KERNEL
2021 default "0x00080000"
2022 help
2023 This is the physical address in your flash memory the kernel will
2024 be linked for and stored to. This address is dependent on your
2025 own flash usage.
2026
Richard Purdiec587e4a2007-02-06 21:29:00 +01002027config KEXEC
2028 bool "Kexec system call (EXPERIMENTAL)"
Will Deacon02b73e22011-06-06 15:49:23 +01002029 depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002030 help
2031 kexec is a system call that implements the ability to shutdown your
2032 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002033 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002034 you can start any kernel with it, not just Linux.
2035
2036 It is an ongoing process to be certain the hardware in a machine
2037 is properly shutdown, so do not be surprised if this code does not
2038 initially work for you. It may help to enable device hotplugging
2039 support.
2040
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002041config ATAGS_PROC
2042 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01002043 depends on KEXEC
2044 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002045 help
2046 Should the atags used to boot the kernel be exported in an "atags"
2047 file in procfs. Useful with kexec.
2048
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002049config CRASH_DUMP
2050 bool "Build kdump crash kernel (EXPERIMENTAL)"
2051 depends on EXPERIMENTAL
2052 help
2053 Generate crash dump after being started by kexec. This should
2054 be normally only set in special crash dump kernels which are
2055 loaded in the main kernel with kexec-tools into a specially
2056 reserved region and then later executed after a crash by
2057 kdump/kexec. The crash dump kernel must be compiled to a
2058 memory address not used by the main kernel
2059
2060 For more details see Documentation/kdump/kdump.txt
2061
Eric Miaoe69edc792010-07-05 15:56:50 +02002062config AUTO_ZRELADDR
2063 bool "Auto calculation of the decompressed kernel image address"
2064 depends on !ZBOOT_ROM && !ARCH_U300
2065 help
2066 ZRELADDR is the physical address where the decompressed kernel
2067 image will be placed. If AUTO_ZRELADDR is selected, the address
2068 will be determined at run-time by masking the current IP with
2069 0xf8000000. This assumes the zImage being placed in the first 128MB
2070 from start of memory.
2071
Linus Torvalds1da177e2005-04-16 15:20:36 -07002072endmenu
2073
Russell Kingac9d7ef2008-08-18 17:26:00 +01002074menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002075
Ben Dooks89c52ed2009-07-30 23:23:24 +01002076if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002077
2078source "drivers/cpufreq/Kconfig"
2079
Yong Shen64f102b2010-10-21 21:18:59 +08002080config CPU_FREQ_IMX
2081 tristate "CPUfreq driver for i.MX CPUs"
2082 depends on ARCH_MXC && CPU_FREQ
2083 help
2084 This enables the CPUfreq driver for i.MX CPUs.
2085
Linus Torvalds1da177e2005-04-16 15:20:36 -07002086config CPU_FREQ_SA1100
2087 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002088
2089config CPU_FREQ_SA1110
2090 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002091
2092config CPU_FREQ_INTEGRATOR
2093 tristate "CPUfreq driver for ARM Integrator CPUs"
2094 depends on ARCH_INTEGRATOR && CPU_FREQ
2095 default y
2096 help
2097 This enables the CPUfreq driver for ARM Integrator CPUs.
2098
2099 For details, take a look at <file:Documentation/cpu-freq>.
2100
2101 If in doubt, say Y.
2102
Russell King9e2697f2007-12-14 13:30:14 +00002103config CPU_FREQ_PXA
2104 bool
2105 depends on CPU_FREQ && ARCH_PXA && PXA25x
2106 default y
Arnd Bergmannca7d1562011-10-01 22:03:51 +02002107 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002108 select CPU_FREQ_DEFAULT_GOV_USERSPACE
2109
Ben Dooks9d56c022009-07-30 23:23:25 +01002110config CPU_FREQ_S3C
2111 bool
2112 help
2113 Internal configuration node for common cpufreq on Samsung SoC
2114
2115config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002116 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002117 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
2118 select CPU_FREQ_S3C
2119 help
2120 This enables the CPUfreq driver for the Samsung S3C24XX family
2121 of CPUs.
2122
2123 For details, take a look at <file:Documentation/cpu-freq>.
2124
2125 If in doubt, say N.
2126
2127config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002128 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002129 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2130 help
2131 Compile in support for changing the PLL frequency from the
2132 S3C24XX series CPUfreq driver. The PLL takes time to settle
2133 after a frequency change, so by default it is not enabled.
2134
2135 This also means that the PLL tables for the selected CPU(s) will
2136 be built which may increase the size of the kernel image.
2137
2138config CPU_FREQ_S3C24XX_DEBUG
2139 bool "Debug CPUfreq Samsung driver core"
2140 depends on CPU_FREQ_S3C24XX
2141 help
2142 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2143
2144config CPU_FREQ_S3C24XX_IODEBUG
2145 bool "Debug CPUfreq Samsung driver IO timing"
2146 depends on CPU_FREQ_S3C24XX
2147 help
2148 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2149
Ben Dookse6d197a2009-07-30 23:23:42 +01002150config CPU_FREQ_S3C24XX_DEBUGFS
2151 bool "Export debugfs for CPUFreq"
2152 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2153 help
2154 Export status information via debugfs.
2155
Linus Torvalds1da177e2005-04-16 15:20:36 -07002156endif
2157
Russell Kingac9d7ef2008-08-18 17:26:00 +01002158source "drivers/cpuidle/Kconfig"
2159
2160endmenu
2161
Linus Torvalds1da177e2005-04-16 15:20:36 -07002162menu "Floating point emulation"
2163
2164comment "At least one emulation must be selected"
2165
2166config FPE_NWFPE
2167 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002168 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002169 ---help---
2170 Say Y to include the NWFPE floating point emulator in the kernel.
2171 This is necessary to run most binaries. Linux does not currently
2172 support floating point hardware so you need to say Y here even if
2173 your machine has an FPA or floating point co-processor podule.
2174
2175 You may say N here if you are going to load the Acorn FPEmulator
2176 early in the bootup.
2177
2178config FPE_NWFPE_XP
2179 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002180 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002181 help
2182 Say Y to include 80-bit support in the kernel floating-point
2183 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2184 Note that gcc does not generate 80-bit operations by default,
2185 so in most cases this option only enlarges the size of the
2186 floating point emulator without any good reason.
2187
2188 You almost surely want to say N here.
2189
2190config FPE_FASTFPE
2191 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002192 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002193 ---help---
2194 Say Y here to include the FAST floating point emulator in the kernel.
2195 This is an experimental much faster emulator which now also has full
2196 precision for the mantissa. It does not support any exceptions.
2197 It is very simple, and approximately 3-6 times faster than NWFPE.
2198
2199 It should be sufficient for most programs. It may be not suitable
2200 for scientific calculations, but you have to check this for yourself.
2201 If you do not feel you need a faster FP emulation you should better
2202 choose NWFPE.
2203
2204config VFP
2205 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002206 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002207 help
2208 Say Y to include VFP support code in the kernel. This is needed
2209 if your hardware includes a VFP unit.
2210
2211 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2212 release notes and additional status information.
2213
2214 Say N if your target does not have VFP hardware.
2215
Catalin Marinas25ebee02007-09-25 15:22:24 +01002216config VFPv3
2217 bool
2218 depends on VFP
2219 default y if CPU_V7
2220
Catalin Marinasb5872db2008-01-10 19:16:17 +01002221config NEON
2222 bool "Advanced SIMD (NEON) Extension support"
2223 depends on VFPv3 && CPU_V7
2224 help
2225 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2226 Extension.
2227
Linus Torvalds1da177e2005-04-16 15:20:36 -07002228endmenu
2229
2230menu "Userspace binary formats"
2231
2232source "fs/Kconfig.binfmt"
2233
2234config ARTHUR
2235 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002236 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002237 help
2238 Say Y here to include the kernel code necessary if you want to run
2239 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2240 experimental; if this sounds frightening, say N and sleep in peace.
2241 You can also say M here to compile this support as a module (which
2242 will be called arthur).
2243
2244endmenu
2245
2246menu "Power management options"
2247
Russell Kingeceab4a2005-11-15 11:31:41 +00002248source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002249
Johannes Bergf4cb5702007-12-08 02:14:00 +01002250config ARCH_SUSPEND_POSSIBLE
Abhilash Kesavan6b6844d2011-10-04 20:30:22 +09002251 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002252 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
2253 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
Johannes Bergf4cb5702007-12-08 02:14:00 +01002254 def_bool y
2255
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002256config ARM_CPU_SUSPEND
2257 def_bool PM_SLEEP
2258
Linus Torvalds1da177e2005-04-16 15:20:36 -07002259endmenu
2260
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002261source "net/Kconfig"
2262
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002263source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002264
2265source "fs/Kconfig"
2266
Linus Torvalds1da177e2005-04-16 15:20:36 -07002267source "arch/arm/Kconfig.debug"
2268
2269source "security/Kconfig"
2270
2271source "crypto/Kconfig"
2272
2273source "lib/Kconfig"