blob: 5fbc034e8f0a13054c70c1c60817f956ea3a3599 [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
Adrian Bunk2064c942008-04-28 23:44:43 +02006 select HAVE_IDE
Russell King2778f622010-07-09 16:27:52 +01007 select HAVE_MEMBLOCK
Alessandro Zummo12b824f2006-03-27 01:16:35 -08008 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +00009 select SYS_SUPPORTS_APM_EMULATION
Russell Kinga41297a2011-01-17 15:48:33 +000010 select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI)
Will Deaconfe166142010-04-30 11:37:51 +010011 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jason Wessel5cbad0e2008-02-20 13:33:40 -060012 select HAVE_ARCH_KGDB
Dave Martined7c84d2010-11-29 19:43:29 +010013 select HAVE_KPROBES if (!XIP_KERNEL && !THUMB2_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080014 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040015 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Rabin Vincent80be7a72010-08-10 19:58:17 +010016 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
17 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Rabin Vincent0e341af2010-11-06 23:03:53 +053018 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040019 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080020 select HAVE_KERNEL_GZIP
21 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010022 select HAVE_KERNEL_LZMA
Peter Zijlstrae360adb2010-10-14 14:01:34 +080023 select HAVE_IRQ_WORK
Jamie Iles7ada1892010-02-02 20:24:58 +010024 select HAVE_PERF_EVENTS
25 select PERF_USE_VMALLOC
Will Deacone513f8b2010-06-25 12:24:53 +010026 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kinge399b1a2011-01-17 15:08:32 +000027 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
Rabin Vincented604532010-11-30 17:36:48 +010028 select HAVE_C_RECORDMCOUNT
Lennert Buytenheke2a93ec2010-11-29 10:06:57 +010029 select HAVE_GENERIC_HARDIRQS
30 select HAVE_SPARSE_IRQ
Thomas Gleixner25a56622011-03-24 12:02:11 +010031 select GENERIC_IRQ_SHOW
Linus Torvalds1da177e2005-04-16 15:20:36 -070032 help
33 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000034 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070035 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000036 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070037 Europe. There is an ARM Linux project with a web page at
38 <http://www.arm.linux.org.uk/>.
39
Russell King1a189b92008-04-13 21:41:55 +010040config HAVE_PWM
41 bool
42
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010043config MIGHT_HAVE_PCI
44 bool
45
Ralf Baechle75e71532007-02-09 17:08:58 +000046config SYS_SUPPORTS_APM_EMULATION
47 bool
48
Russell King112f38a42010-12-15 19:23:07 +000049config HAVE_SCHED_CLOCK
50 bool
51
David Brownell0a938b92007-03-05 00:30:18 -080052config GENERIC_GPIO
53 bool
David Brownell0a938b92007-03-05 00:30:18 -080054
John Stultz5cfc8ee2010-03-24 00:22:36 +000055config ARCH_USES_GETTIMEOFFSET
56 bool
57 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010058
Kevin Hilman0567a0c2007-03-13 20:29:24 +010059config GENERIC_CLOCKEVENTS
60 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010061
Catalin Marinasa8655e82008-02-04 17:30:57 +010062config GENERIC_CLOCKEVENTS_BROADCAST
63 bool
64 depends on GENERIC_CLOCKEVENTS
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -070065 default y if SMP && !LOCAL_TIMERS
Catalin Marinasa8655e82008-02-04 17:30:57 +010066
Rob Herringbf9dd362011-03-04 23:51:59 +010067config KTIME_SCALAR
68 bool
69 default y
70
Linus Walleijbc581772009-09-15 17:30:37 +010071config HAVE_TCM
72 bool
73 select GENERIC_ALLOCATOR
74
Russell Kinge119bff2010-01-10 17:23:29 +000075config HAVE_PROC_CPU
76 bool
77
Al Viro5ea81762007-02-11 15:41:31 +000078config NO_IOPORT
79 bool
Al Viro5ea81762007-02-11 15:41:31 +000080
Linus Torvalds1da177e2005-04-16 15:20:36 -070081config EISA
82 bool
83 ---help---
84 The Extended Industry Standard Architecture (EISA) bus was
85 developed as an open alternative to the IBM MicroChannel bus.
86
87 The EISA bus provided some of the features of the IBM MicroChannel
88 bus while maintaining backward compatibility with cards made for
89 the older ISA bus. The EISA bus saw limited use between 1988 and
90 1995 when it was made obsolete by the PCI bus.
91
92 Say Y here if you are building a kernel for an EISA-based machine.
93
94 Otherwise, say N.
95
96config SBUS
97 bool
98
99config MCA
100 bool
101 help
102 MicroChannel Architecture is found in some IBM PS/2 machines and
103 laptops. It is a bus system similar to PCI or ISA. See
104 <file:Documentation/mca.txt> (and especially the web page given
105 there) before attempting to build an MCA bus kernel.
106
Russell Kingf16fb1e2007-04-28 09:59:37 +0100107config STACKTRACE_SUPPORT
108 bool
109 default y
110
Nicolas Pitref76e9152008-04-24 01:31:46 -0400111config HAVE_LATENCYTOP_SUPPORT
112 bool
113 depends on !SMP
114 default y
115
Russell Kingf16fb1e2007-04-28 09:59:37 +0100116config LOCKDEP_SUPPORT
117 bool
118 default y
119
Russell King7ad1bcb2006-08-27 12:07:02 +0100120config TRACE_IRQFLAGS_SUPPORT
121 bool
122 default y
123
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100124config HARDIRQS_SW_RESEND
125 bool
126 default y
127
128config GENERIC_IRQ_PROBE
129 bool
130 default y
131
Nick Piggin95c354f2008-01-30 13:31:20 +0100132config GENERIC_LOCKBREAK
133 bool
134 default y
135 depends on SMP && PREEMPT
136
Linus Torvalds1da177e2005-04-16 15:20:36 -0700137config RWSEM_GENERIC_SPINLOCK
138 bool
139 default y
140
141config RWSEM_XCHGADD_ALGORITHM
142 bool
143
David Howellsf0d1b0b2006-12-08 02:37:49 -0800144config ARCH_HAS_ILOG2_U32
145 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800146
147config ARCH_HAS_ILOG2_U64
148 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800149
Ben Dooks89c52ed2009-07-30 23:23:24 +0100150config ARCH_HAS_CPUFREQ
151 bool
152 help
153 Internal node to signify that the ARCH has CPUFREQ support
154 and that the relevant menu configurations are displayed for
155 it.
156
Kevin Hilmanc7b0aff2010-10-01 22:13:47 +0100157config ARCH_HAS_CPU_IDLE_WAIT
158 def_bool y
159
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800160config GENERIC_HWEIGHT
161 bool
162 default y
163
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164config GENERIC_CALIBRATE_DELAY
165 bool
166 default y
167
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100168config ARCH_MAY_HAVE_PC_FDC
169 bool
170
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800171config ZONE_DMA
172 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800173
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800174config NEED_DMA_MAP_STATE
175 def_bool y
176
Linus Torvalds1da177e2005-04-16 15:20:36 -0700177config GENERIC_ISA_DMA
178 bool
179
Linus Torvalds1da177e2005-04-16 15:20:36 -0700180config FIQ
181 bool
182
Al Viro034d2f52005-12-19 16:27:59 -0500183config ARCH_MTD_XIP
184 bool
185
Hyok S. Choic760fc12006-03-27 15:18:50 +0100186config VECTORS_BASE
187 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900188 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100189 default DRAM_BASE if REMAP_VECTORS_TO_RAM
190 default 0x00000000
191 help
192 The base address of exception vectors.
193
Russell Kingdc21af92011-01-04 19:09:43 +0000194config ARM_PATCH_PHYS_VIRT
195 bool "Patch physical to virtual translations at runtime (EXPERIMENTAL)"
196 depends on EXPERIMENTAL
Nicolas Pitreb511d752011-02-21 06:53:35 +0100197 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000198 depends on !ARCH_REALVIEW || !SPARSEMEM
199 help
Russell King111e9a52011-05-12 10:02:42 +0100200 Patch phys-to-virt and virt-to-phys translation functions at
201 boot and module load time according to the position of the
202 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000203
Russell King111e9a52011-05-12 10:02:42 +0100204 This can only be used with non-XIP MMU kernels where the base
205 of physical memory is at a 16MB boundary, or theoretically 64K
206 for the MSM machine class.
Russell Kingdc21af92011-01-04 19:09:43 +0000207
Russell Kingcada3c02011-01-04 19:39:29 +0000208config ARM_PATCH_PHYS_VIRT_16BIT
209 def_bool y
210 depends on ARM_PATCH_PHYS_VIRT && ARCH_MSM
Russell King111e9a52011-05-12 10:02:42 +0100211 help
212 This option extends the physical to virtual translation patching
213 to allow physical memory down to a theoretical minimum of 64K
214 boundaries.
Russell Kingcada3c02011-01-04 19:39:29 +0000215
Linus Torvalds1da177e2005-04-16 15:20:36 -0700216source "init/Kconfig"
217
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700218source "kernel/Kconfig.freezer"
219
Linus Torvalds1da177e2005-04-16 15:20:36 -0700220menu "System Type"
221
Hyok S. Choi3c427972009-07-24 12:35:00 +0100222config MMU
223 bool "MMU-based Paged Memory Management Support"
224 default y
225 help
226 Select if you want MMU-based virtualised addressing space
227 support by paged memory management. If unsure, say 'Y'.
228
Russell Kingccf50e22010-03-15 19:03:06 +0000229#
230# The "ARM system type" choice list is ordered alphabetically by option
231# text. Please add new entries in the option alphabetic order.
232#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233choice
234 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000235 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100237config ARCH_INTEGRATOR
238 bool "ARM Ltd. Integrator family"
239 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100240 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100241 select CLKDEV_LOOKUP
Russell Kingc5a0adb2010-01-16 20:16:10 +0000242 select ICST
Russell King13edd862010-01-15 21:49:23 +0000243 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000244 select PLAT_VERSATILE
Russell Kingc41b16f2011-01-19 15:32:15 +0000245 select PLAT_VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100246 help
247 Support for ARM's Integrator platform.
248
249config ARCH_REALVIEW
250 bool "ARM Ltd. RealView family"
251 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100252 select CLKDEV_LOOKUP
Russell Kingc5a0adb2010-01-16 20:16:10 +0000253 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100254 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100255 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000256 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000257 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000258 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100259 select GPIO_PL061 if GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100260 help
261 This enables support for ARM Ltd RealView boards.
262
263config ARCH_VERSATILE
264 bool "ARM Ltd. Versatile family"
265 select ARM_AMBA
266 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100267 select CLKDEV_LOOKUP
Russell Kingc5a0adb2010-01-16 20:16:10 +0000268 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100269 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100270 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000271 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000272 select PLAT_VERSATILE_CLCD
Russell Kingc41b16f2011-01-19 15:32:15 +0000273 select PLAT_VERSATILE_FPGA_IRQ
Russell Kinge3887712010-01-14 13:30:16 +0000274 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100275 help
276 This enables support for ARM Ltd Versatile board.
277
Russell Kingceade892010-02-11 21:44:53 +0000278config ARCH_VEXPRESS
279 bool "ARM Ltd. Versatile Express family"
280 select ARCH_WANT_OPTIONAL_GPIOLIB
281 select ARM_AMBA
282 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100283 select CLKDEV_LOOKUP
Russell Kingceade892010-02-11 21:44:53 +0000284 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000285 select HAVE_CLK
Nick Bowler95c34f82011-01-21 15:51:06 +0100286 select HAVE_PATA_PLATFORM
Russell Kingceade892010-02-11 21:44:53 +0000287 select ICST
288 select PLAT_VERSATILE
Russell King0fb44b92011-01-18 20:13:51 +0000289 select PLAT_VERSATILE_CLCD
Russell Kingceade892010-02-11 21:44:53 +0000290 help
291 This enables support for the ARM Ltd Versatile Express boards.
292
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100293config ARCH_AT91
294 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100295 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700296 select HAVE_CLK
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100297 select CLKDEV_LOOKUP
Jean-Christophe PLAGNIOL-VILLARD3d51f252011-05-03 00:44:58 +0800298 select ARM_PATCH_PHYS_VIRT if MMU
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100299 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100300 This enables support for systems based on the Atmel AT91RM9200,
301 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100302
Russell Kingccf50e22010-03-15 19:03:06 +0000303config ARCH_BCMRING
304 bool "Broadcom BCMRING"
305 depends on MMU
306 select CPU_V6
307 select ARM_AMBA
Russell King82d63732011-05-12 13:43:39 +0100308 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100309 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000310 select GENERIC_CLOCKEVENTS
311 select ARCH_WANT_OPTIONAL_GPIOLIB
312 help
313 Support for Broadcom's BCMRing platform.
314
Linus Torvalds1da177e2005-04-16 15:20:36 -0700315config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100316 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000317 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000318 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000319 help
320 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700321
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300322config ARCH_CNS3XXX
323 bool "Cavium Networks CNS3XXX family"
324 select CPU_V6
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300325 select GENERIC_CLOCKEVENTS
326 select ARM_GIC
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100327 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400328 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300329 help
330 Support for Cavium Networks CNS3XXX platform.
331
Russell King788c9702009-04-26 14:21:59 +0100332config ARCH_GEMINI
333 bool "Cortina Systems Gemini"
334 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100335 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000336 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100337 help
338 Support for the Cortina Systems Gemini family SoCs
339
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340config ARCH_EBSA110
341 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000342 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100343 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000344 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000345 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700346 help
347 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000348 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700349 Ethernet interface, two PCMCIA sockets, two serial ports and a
350 parallel port.
351
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000352config ARCH_EP93XX
353 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000354 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000355 select ARM_AMBA
356 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100357 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700358 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100359 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000360 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000361 help
362 This enables support for the Cirrus EP93xx series of CPUs.
363
Linus Torvalds1da177e2005-04-16 15:20:36 -0700364config ARCH_FOOTBRIDGE
365 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000366 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700367 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000368 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000369 help
370 Support for systems based on the DC21285 companion chip
371 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700372
Russell King788c9702009-04-26 14:21:59 +0100373config ARCH_MXC
374 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100375 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100376 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100377 select CLKDEV_LOOKUP
Russell King234b6ce2011-05-08 14:09:47 +0100378 select CLKSRC_MMIO
Jan Weitzelc124bef2011-03-17 13:44:30 +0100379 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100380 help
381 Support for Freescale MXC/iMX-based family of processors
382
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800383config ARCH_MXS
384 bool "Freescale MXS-based"
385 select GENERIC_CLOCKEVENTS
386 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100387 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100388 select CLKSRC_MMIO
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800389 help
390 Support for Freescale MXS-based family of processors
391
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100392config ARCH_NETX
393 bool "Hilscher NetX based"
Russell King234b6ce2011-05-08 14:09:47 +0100394 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000395 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100396 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100397 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000398 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100399 This enables support for systems based on the Hilscher NetX Soc
400
401config ARCH_H720X
402 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000403 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100404 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000405 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100406 help
407 This enables support for systems based on the Hynix HMS720x
408
Russell King3b938be2007-05-12 11:25:44 +0100409config ARCH_IOP13XX
410 bool "IOP13xx-based"
411 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000412 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100413 select PLAT_IOP
414 select PCI
415 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100416 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100417 help
418 Support for Intel's IOP13XX (XScale) family of processors.
419
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100420config ARCH_IOP32X
421 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100422 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000423 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100424 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100425 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100426 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000427 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100428 Support for Intel's 80219 and IOP32X (XScale) family of
429 processors.
430
431config ARCH_IOP33X
432 bool "IOP33x-based"
433 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000434 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100435 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100436 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100437 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100438 help
439 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700440
Russell King3b938be2007-05-12 11:25:44 +0100441config ARCH_IXP23XX
442 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100443 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000444 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100445 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000446 select ARCH_USES_GETTIMEOFFSET
Dan Williams285f5fa2006-12-07 02:59:39 +0100447 help
Russell King3b938be2007-05-12 11:25:44 +0100448 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449
450config ARCH_IXP2000
451 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100452 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000453 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100454 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000455 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000456 help
457 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458
Russell King3b938be2007-05-12 11:25:44 +0100459config ARCH_IXP4XX
460 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100461 depends on MMU
Russell King234b6ce2011-05-08 14:09:47 +0100462 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000463 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100464 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100465 select GENERIC_CLOCKEVENTS
Russell King5b0d4952010-12-15 21:23:13 +0000466 select HAVE_SCHED_CLOCK
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100467 select MIGHT_HAVE_PCI
Russell King485bdde2008-10-17 14:00:43 +0100468 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100469 help
Russell King3b938be2007-05-12 11:25:44 +0100470 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100471
Saeed Bisharaedabd382009-08-06 15:12:43 +0300472config ARCH_DOVE
473 bool "Marvell Dove"
Konstantin Porotchkin7b769bb2011-04-07 13:49:41 +0300474 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300475 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300476 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300477 select GENERIC_CLOCKEVENTS
478 select PLAT_ORION
479 help
480 Support for the Marvell Dove SoC 88AP510
481
Saeed Bishara651c74c2008-06-22 22:45:06 +0200482config ARCH_KIRKWOOD
483 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000484 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200485 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700486 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200487 select GENERIC_CLOCKEVENTS
488 select PLAT_ORION
489 help
490 Support for the following Marvell Kirkwood series SoCs:
491 88F6180, 88F6192 and 88F6281.
492
Russell King788c9702009-04-26 14:21:59 +0100493config ARCH_LOKI
494 bool "Marvell Loki (88RC8480)"
495 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100496 select GENERIC_CLOCKEVENTS
497 select PLAT_ORION
498 help
499 Support for the Marvell Loki (88RC8480) SoC.
500
Kevin Wells40805942010-07-27 08:49:04 -0700501config ARCH_LPC32XX
502 bool "NXP LPC32XX"
Russell King234b6ce2011-05-08 14:09:47 +0100503 select CLKSRC_MMIO
Kevin Wells40805942010-07-27 08:49:04 -0700504 select CPU_ARM926T
505 select ARCH_REQUIRE_GPIOLIB
506 select HAVE_IDE
507 select ARM_AMBA
508 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100509 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700510 select GENERIC_TIME
511 select GENERIC_CLOCKEVENTS
512 help
513 Support for the NXP LPC32XX family of processors
514
Russell King788c9702009-04-26 14:21:59 +0100515config ARCH_MV78XX0
516 bool "Marvell MV78xx0"
517 select CPU_FEROCEON
518 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700519 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100520 select GENERIC_CLOCKEVENTS
521 select PLAT_ORION
522 help
523 Support for the following Marvell MV78xx0 series SoCs:
524 MV781x0, MV782x0.
525
526config ARCH_ORION5X
527 bool "Marvell Orion"
528 depends on MMU
529 select CPU_FEROCEON
530 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700531 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100532 select GENERIC_CLOCKEVENTS
533 select PLAT_ORION
534 help
535 Support for the following Marvell Orion 5x series SoCs:
536 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
537 Orion-2 (5281), Orion-1-90 (6183).
538
539config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500540 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100541 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100542 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100543 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100544 select GENERIC_CLOCKEVENTS
Russell King28bb7bc2010-12-15 21:46:48 +0000545 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100546 select TICK_ONESHOT
547 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400548 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100549 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500550 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100551
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100552config ARCH_KS8695
553 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000554 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100555 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000556 select ARCH_USES_GETTIMEOFFSET
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100557 help
558 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
559 System-on-Chip devices.
560
Russell King788c9702009-04-26 14:21:59 +0100561config ARCH_W90X900
562 bool "Nuvoton W90X900 CPU"
563 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100564 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100565 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100566 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100567 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200568 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100569 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
570 At present, the w90x900 has been renamed nuc900, regarding
571 the ARM series product line, you can login the following
572 link address to know more.
573
574 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
575 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400576
wanzongshuna62e9032009-12-31 15:06:05 +0100577config ARCH_NUC93X
578 bool "Nuvoton NUC93X CPU"
579 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100580 select CLKDEV_LOOKUP
wanzongshuna62e9032009-12-31 15:06:05 +0100581 help
582 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
583 low-power and high performance MPEG-4/JPEG multimedia controller chip.
584
Erik Gillingc5f80062010-01-21 16:53:02 -0800585config ARCH_TEGRA
586 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000587 select CLKDEV_LOOKUP
Russell King234b6ce2011-05-08 14:09:47 +0100588 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800589 select GENERIC_TIME
590 select GENERIC_CLOCKEVENTS
591 select GENERIC_GPIO
592 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000593 select HAVE_SCHED_CLOCK
Erik Gillingc5f80062010-01-21 16:53:02 -0800594 select ARCH_HAS_BARRIERS if CACHE_L2X0
Colin Cross7056d422010-04-22 20:30:13 -0700595 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800596 help
597 This enables support for NVIDIA Tegra based systems (Tegra APX,
598 Tegra 6xx and Tegra 2 series).
599
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100600config ARCH_PNX4008
601 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000602 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100603 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000604 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100605 help
606 This enables support for Philips PNX4008 mobile platform.
607
Linus Torvalds1da177e2005-04-16 15:20:36 -0700608config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700609 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100610 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500611 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100612 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100613 select CLKDEV_LOOKUP
Russell King234b6ce2011-05-08 14:09:47 +0100614 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700615 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100616 select GENERIC_CLOCKEVENTS
Russell King7ce83012010-12-15 21:48:15 +0000617 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000618 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800619 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800620 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000621 help
eric miao2c8086a2007-09-11 19:13:17 -0700622 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700623
Russell King788c9702009-04-26 14:21:59 +0100624config ARCH_MSM
625 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500626 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800627 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700628 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800629 select CLKDEV_LOOKUP
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -0700630 select ARCH_HAS_CPUFREQ
631 select GENERIC_GPIO
632 select GENERIC_TIME
633 select GENERIC_ALLOCATOR
Jeff Ohlstein4e93ae12011-09-26 18:22:26 -0700634 select HAVE_SCHED_CLOCK
Eric Miao49cbe782009-01-20 14:15:18 +0800635 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800636 Support for Qualcomm MSM/QSD based systems. This runs on the
637 apps processor of the MSM/QSD and depends on a shared memory
638 interface to the modem processor which runs the baseband
639 stack and controls some vital subsystems
640 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800641
Magnus Dammc793c1b2010-02-05 11:14:49 +0000642config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900643 bool "Renesas SH-Mobile / R-Mobile"
644 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900645 select CLKDEV_LOOKUP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900646 select GENERIC_CLOCKEVENTS
647 select NO_IOPORT
648 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000649 select MULTI_IRQ_HANDLER
Magnus Dammc793c1b2010-02-05 11:14:49 +0000650 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900651 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000652
Linus Torvalds1da177e2005-04-16 15:20:36 -0700653config ARCH_RPC
654 bool "RiscPC"
655 select ARCH_ACORN
656 select FIQ
657 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100658 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100659 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000660 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000661 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100662 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000663 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700664 help
665 On the Acorn Risc-PC, Linux can support the internal IDE disk and
666 CD-ROM interface, serial and parallel port, and the floppy drive.
667
668config ARCH_SA1100
669 bool "SA1100-based"
Russell King234b6ce2011-05-08 14:09:47 +0100670 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000671 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100672 select ISA
Russell King05944d72006-11-30 20:43:51 +0000673 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500674 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100675 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000676 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100677 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700678 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000679 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100680 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700681 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000682 help
683 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700684
685config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900686 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800687 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100688 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700689 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000690 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900691 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700692 help
693 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
694 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000695 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700696
Ben Dooks63b1f512010-04-30 16:32:26 +0900697 Note, the S3C2416 and the S3C2450 are so close that they even share
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300698 the same SoC ID code. This means that there is no separate machine
Ben Dooks63b1f512010-04-30 16:32:26 +0900699 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
700
Ben Dooksa08ab632008-10-21 14:06:39 +0100701config ARCH_S3C64XX
702 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000703 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900704 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900705 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100706 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900707 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000708 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100709 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900710 select ARCH_REQUIRE_GPIOLIB
711 select SAMSUNG_CLKSRC
712 select SAMSUNG_IRQ_VIC_TIMER
713 select SAMSUNG_IRQ_UART
714 select S3C_GPIO_TRACK
715 select S3C_GPIO_PULL_UPDOWN
716 select S3C_GPIO_CFG_S3C24XX
717 select S3C_GPIO_CFG_S3C64XX
718 select S3C_DEV_NAND
719 select USB_ARCH_HAS_OHCI
720 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900721 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900722 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100723 help
724 Samsung S3C64XX series based systems
725
Kukjin Kim49b7a492010-09-07 15:47:18 +0900726config ARCH_S5P64X0
727 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900728 select CPU_V6
729 select GENERIC_GPIO
730 select HAVE_CLK
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900731 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900732 select GENERIC_CLOCKEVENTS
733 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900734 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900735 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900736 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900737 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
738 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900739
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200740config ARCH_S5PC100
741 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900742 select GENERIC_GPIO
743 select HAVE_CLK
744 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100745 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900746 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900747 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900748 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900749 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900750 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200751 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900752
Kukjin Kim170f4e42010-02-24 16:40:44 +0900753config ARCH_S5PV210
754 bool "Samsung S5PV210/S5PC110"
755 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900756 select ARCH_SPARSEMEM_ENABLE
Kukjin Kim170f4e42010-02-24 16:40:44 +0900757 select GENERIC_GPIO
758 select HAVE_CLK
759 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900760 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900761 select GENERIC_CLOCKEVENTS
762 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900763 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900764 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900765 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim170f4e42010-02-24 16:40:44 +0900766 help
767 Samsung S5PV210/S5PC110 series based systems
768
Kukjin Kim10606aa2011-02-14 15:05:27 +0900769config ARCH_EXYNOS4
770 bool "Samsung EXYNOS4"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900771 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900772 select ARCH_SPARSEMEM_ENABLE
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900773 select GENERIC_GPIO
774 select HAVE_CLK
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900775 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900776 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900777 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900778 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900779 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900780 help
Kukjin Kim10606aa2011-02-14 15:05:27 +0900781 Samsung EXYNOS4 series based systems
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900782
Linus Torvalds1da177e2005-04-16 15:20:36 -0700783config ARCH_SHARK
784 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000785 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100786 select ISA
787 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100788 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100789 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000790 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000791 help
792 Support for the StrongARM based Digital DNARD machine, also known
793 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700794
Hans J. Koch83ef3332010-09-17 18:13:56 +0200795config ARCH_TCC_926
796 bool "Telechips TCC ARM926-based systems"
Russell King234b6ce2011-05-08 14:09:47 +0100797 select CLKSRC_MMIO
Hans J. Koch83ef3332010-09-17 18:13:56 +0200798 select CPU_ARM926T
799 select HAVE_CLK
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100800 select CLKDEV_LOOKUP
Hans J. Koch83ef3332010-09-17 18:13:56 +0200801 select GENERIC_CLOCKEVENTS
802 help
803 Support for Telechips TCC ARM926-based systems.
804
Linus Walleijd98aac72009-04-27 10:21:46 +0100805config ARCH_U300
806 bool "ST-Ericsson U300 Series"
807 depends on MMU
Russell King234b6ce2011-05-08 14:09:47 +0100808 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100809 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000810 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100811 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100812 select ARM_AMBA
813 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100814 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100815 select CLKDEV_LOOKUP
Linus Walleijd98aac72009-04-27 10:21:46 +0100816 select GENERIC_GPIO
817 help
818 Support for ST-Ericsson U300 series mobile platforms.
819
Russell Kingccf50e22010-03-15 19:03:06 +0000820config ARCH_U8500
821 bool "ST-Ericsson U8500 Series"
822 select CPU_V7
823 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000824 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100825 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100826 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100827 select ARCH_HAS_CPUFREQ
Russell Kingccf50e22010-03-15 19:03:06 +0000828 help
829 Support for ST-Ericsson's Ux500 architecture
830
831config ARCH_NOMADIK
832 bool "STMicroelectronics Nomadik"
833 select ARM_AMBA
834 select ARM_VIC
835 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100836 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000837 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000838 select ARCH_REQUIRE_GPIOLIB
839 help
840 Support for the Nomadik platform by ST-Ericsson
841
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100842config ARCH_DAVINCI
843 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100844 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700845 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100846 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700847 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100848 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700849 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100850 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530851 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100852 help
853 Support for TI's DaVinci platform.
854
Russell King3b938be2007-05-12 11:25:44 +0100855config ARCH_OMAP
856 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700857 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700858 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100859 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700860 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000861 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800862 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100863 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200864 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100865
viresh kumarcee37e52010-04-01 12:31:05 +0100866config PLAT_SPEAR
867 bool "ST SPEAr"
868 select ARM_AMBA
869 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100870 select CLKDEV_LOOKUP
Russell Kingd6e15d72011-05-08 17:10:14 +0100871 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100872 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100873 select HAVE_CLK
874 help
875 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
876
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100877config ARCH_VT8500
878 bool "VIA/WonderMedia 85xx"
879 select CPU_ARM926T
880 select GENERIC_GPIO
881 select ARCH_HAS_CPUFREQ
882 select GENERIC_CLOCKEVENTS
883 select ARCH_REQUIRE_GPIOLIB
884 select HAVE_PWM
885 help
886 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700887endchoice
888
Russell Kingccf50e22010-03-15 19:03:06 +0000889#
890# This is sorted alphabetically by mach-* pathname. However, plat-*
891# Kconfigs may be included either alphabetically (according to the
892# plat- suffix) or along side the corresponding mach-* source.
893#
Russell King95b8f202010-01-14 11:43:54 +0000894source "arch/arm/mach-at91/Kconfig"
895
896source "arch/arm/mach-bcmring/Kconfig"
897
Linus Torvalds1da177e2005-04-16 15:20:36 -0700898source "arch/arm/mach-clps711x/Kconfig"
899
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300900source "arch/arm/mach-cns3xxx/Kconfig"
901
Russell King95b8f202010-01-14 11:43:54 +0000902source "arch/arm/mach-davinci/Kconfig"
903
904source "arch/arm/mach-dove/Kconfig"
905
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000906source "arch/arm/mach-ep93xx/Kconfig"
907
Linus Torvalds1da177e2005-04-16 15:20:36 -0700908source "arch/arm/mach-footbridge/Kconfig"
909
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200910source "arch/arm/mach-gemini/Kconfig"
911
Russell King95b8f202010-01-14 11:43:54 +0000912source "arch/arm/mach-h720x/Kconfig"
913
Linus Torvalds1da177e2005-04-16 15:20:36 -0700914source "arch/arm/mach-integrator/Kconfig"
915
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100916source "arch/arm/mach-iop32x/Kconfig"
917
918source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700919
Dan Williams285f5fa2006-12-07 02:59:39 +0100920source "arch/arm/mach-iop13xx/Kconfig"
921
Linus Torvalds1da177e2005-04-16 15:20:36 -0700922source "arch/arm/mach-ixp4xx/Kconfig"
923
924source "arch/arm/mach-ixp2000/Kconfig"
925
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100926source "arch/arm/mach-ixp23xx/Kconfig"
927
Russell King95b8f202010-01-14 11:43:54 +0000928source "arch/arm/mach-kirkwood/Kconfig"
929
930source "arch/arm/mach-ks8695/Kconfig"
931
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200932source "arch/arm/mach-loki/Kconfig"
933
Kevin Wells40805942010-07-27 08:49:04 -0700934source "arch/arm/mach-lpc32xx/Kconfig"
935
Russell King95b8f202010-01-14 11:43:54 +0000936source "arch/arm/mach-msm/Kconfig"
937
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200938source "arch/arm/mach-mv78xx0/Kconfig"
939
Russell King95b8f202010-01-14 11:43:54 +0000940source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700941
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800942source "arch/arm/mach-mxs/Kconfig"
943
Russell King95b8f202010-01-14 11:43:54 +0000944source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800945
Russell King95b8f202010-01-14 11:43:54 +0000946source "arch/arm/mach-nomadik/Kconfig"
947source "arch/arm/plat-nomadik/Kconfig"
948
Russell Kingd91a8912010-02-04 18:13:17 +0000949source "arch/arm/mach-nuc93x/Kconfig"
950
Tony Lindgrend48af152005-07-10 19:58:17 +0100951source "arch/arm/plat-omap/Kconfig"
952
953source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700954
Tony Lindgren1dbae812005-11-10 14:26:51 +0000955source "arch/arm/mach-omap2/Kconfig"
956
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400957source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400958
Russell King95b8f202010-01-14 11:43:54 +0000959source "arch/arm/mach-pxa/Kconfig"
960source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700961
Russell King95b8f202010-01-14 11:43:54 +0000962source "arch/arm/mach-mmp/Kconfig"
963
964source "arch/arm/mach-realview/Kconfig"
965
966source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300967
Ben Dookscf383672009-11-10 00:14:58 +0000968source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100969source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900970source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100971
viresh kumarcee37e52010-04-01 12:31:05 +0100972source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100973
Hans J. Koch83ef3332010-09-17 18:13:56 +0200974source "arch/arm/plat-tcc/Kconfig"
975
Ben Dooksa21765a2007-02-11 18:31:01 +0100976if ARCH_S3C2410
977source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700978source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100979source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900980source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100981source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100982source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100983endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700984
Ben Dooksa08ab632008-10-21 14:06:39 +0100985if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900986source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100987endif
988
Kukjin Kim49b7a492010-09-07 15:47:18 +0900989source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900990
Byungho Min5a7652f2009-06-23 21:39:42 +0900991source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900992
Kukjin Kim170f4e42010-02-24 16:40:44 +0900993source "arch/arm/mach-s5pv210/Kconfig"
994
Kukjin Kim10606aa2011-02-14 15:05:27 +0900995source "arch/arm/mach-exynos4/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900996
Russell King882d01f2010-03-02 23:40:15 +0000997source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700998
Erik Gillingc5f80062010-01-21 16:53:02 -0800999source "arch/arm/mach-tegra/Kconfig"
1000
Russell King95b8f202010-01-14 11:43:54 +00001001source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001002
Russell King95b8f202010-01-14 11:43:54 +00001003source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001004
1005source "arch/arm/mach-versatile/Kconfig"
1006
Russell Kingceade892010-02-11 21:44:53 +00001007source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001008source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001009
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001010source "arch/arm/mach-vt8500/Kconfig"
1011
wanzongshun7ec80dd2008-12-03 03:55:38 +01001012source "arch/arm/mach-w90x900/Kconfig"
1013
Linus Torvalds1da177e2005-04-16 15:20:36 -07001014# Definitions to make life easier
1015config ARCH_ACORN
1016 bool
1017
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001018config PLAT_IOP
1019 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001020 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001021 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001022
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001023config PLAT_ORION
1024 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001025 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001026 select GENERIC_IRQ_CHIP
Russell Kingf06a1622010-12-15 21:55:06 +00001027 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001028
Eric Miaobd5ce432009-01-20 12:06:01 +08001029config PLAT_PXA
1030 bool
1031
Russell Kingf4b8b312010-01-14 12:48:06 +00001032config PLAT_VERSATILE
1033 bool
1034
Russell Kinge3887712010-01-14 13:30:16 +00001035config ARM_TIMER_SP804
1036 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001037 select CLKSRC_MMIO
Russell Kinge3887712010-01-14 13:30:16 +00001038
Linus Torvalds1da177e2005-04-16 15:20:36 -07001039source arch/arm/mm/Kconfig
1040
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001041config RESERVE_FIRST_PAGE
1042 bool
1043 default n
1044 help
1045 Reserve the first page at PHYS_OFFSET. The first
1046 physical page is used by many platforms for warm
1047 boot operations. Reserve this page so that it is
1048 not allocated by the kernel.
1049
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001050config IWMMXT
1051 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001052 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1053 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001054 help
1055 Enable support for iWMMXt context switching at run time if
1056 running on a CPU that supports it.
1057
Linus Torvalds1da177e2005-04-16 15:20:36 -07001058# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1059config XSCALE_PMU
1060 bool
1061 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1062 default y
1063
Jamie Iles0f4f0672010-02-02 20:23:15 +01001064config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001065 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001066 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001067 default y
1068 bool
1069
eric miao52108642010-12-13 09:42:34 +01001070config MULTI_IRQ_HANDLER
1071 bool
1072 help
1073 Allow each machine to specify it's own IRQ handler at run time.
1074
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001075if !MMU
1076source "arch/arm/Kconfig-nommu"
1077endif
1078
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001079config ARM_ERRATA_411920
1080 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001081 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001082 help
1083 Invalidation of the Instruction Cache operation can
1084 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1085 It does not affect the MPCore. This option enables the ARM Ltd.
1086 recommended workaround.
1087
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001088config ARM_ERRATA_430973
1089 bool "ARM errata: Stale prediction on replaced interworking branch"
1090 depends on CPU_V7
1091 help
1092 This option enables the workaround for the 430973 Cortex-A8
1093 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1094 interworking branch is replaced with another code sequence at the
1095 same virtual address, whether due to self-modifying code or virtual
1096 to physical address re-mapping, Cortex-A8 does not recover from the
1097 stale interworking branch prediction. This results in Cortex-A8
1098 executing the new code sequence in the incorrect ARM or Thumb state.
1099 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1100 and also flushes the branch target cache at every context switch.
1101 Note that setting specific bits in the ACTLR register may not be
1102 available in non-secure mode.
1103
Catalin Marinas855c5512009-04-30 17:06:15 +01001104config ARM_ERRATA_458693
1105 bool "ARM errata: Processor deadlock when a false hazard is created"
1106 depends on CPU_V7
1107 help
1108 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1109 erratum. For very specific sequences of memory operations, it is
1110 possible for a hazard condition intended for a cache line to instead
1111 be incorrectly associated with a different cache line. This false
1112 hazard might then cause a processor deadlock. The workaround enables
1113 the L1 caching of the NEON accesses and disables the PLD instruction
1114 in the ACTLR register. Note that setting specific bits in the ACTLR
1115 register may not be available in non-secure mode.
1116
Catalin Marinas0516e462009-04-30 17:06:20 +01001117config ARM_ERRATA_460075
1118 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1119 depends on CPU_V7
1120 help
1121 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1122 erratum. Any asynchronous access to the L2 cache may encounter a
1123 situation in which recent store transactions to the L2 cache are lost
1124 and overwritten with stale memory contents from external memory. The
1125 workaround disables the write-allocate mode for the L2 cache via the
1126 ACTLR register. Note that setting specific bits in the ACTLR register
1127 may not be available in non-secure mode.
1128
Will Deacon9f050272010-09-14 09:51:43 +01001129config ARM_ERRATA_742230
1130 bool "ARM errata: DMB operation may be faulty"
1131 depends on CPU_V7 && SMP
1132 help
1133 This option enables the workaround for the 742230 Cortex-A9
1134 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1135 between two write operations may not ensure the correct visibility
1136 ordering of the two writes. This workaround sets a specific bit in
1137 the diagnostic register of the Cortex-A9 which causes the DMB
1138 instruction to behave as a DSB, ensuring the correct behaviour of
1139 the two writes.
1140
Will Deacona672e992010-09-14 09:53:02 +01001141config ARM_ERRATA_742231
1142 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1143 depends on CPU_V7 && SMP
1144 help
1145 This option enables the workaround for the 742231 Cortex-A9
1146 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1147 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1148 accessing some data located in the same cache line, may get corrupted
1149 data due to bad handling of the address hazard when the line gets
1150 replaced from one of the CPUs at the same time as another CPU is
1151 accessing it. This workaround sets specific bits in the diagnostic
1152 register of the Cortex-A9 which reduces the linefill issuing
1153 capabilities of the processor.
1154
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001155config PL310_ERRATA_588369
1156 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001157 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001158 help
1159 The PL310 L2 cache controller implements three types of Clean &
1160 Invalidate maintenance operations: by Physical Address
1161 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1162 They are architecturally defined to behave as the execution of a
1163 clean operation followed immediately by an invalidate operation,
1164 both performing to the same memory location. This functionality
1165 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001166 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001167
1168config ARM_ERRATA_720789
1169 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1170 depends on CPU_V7 && SMP
1171 help
1172 This option enables the workaround for the 720789 Cortex-A9 (prior to
1173 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1174 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1175 As a consequence of this erratum, some TLB entries which should be
1176 invalidated are not, resulting in an incoherency in the system page
1177 tables. The workaround changes the TLB flushing routines to invalidate
1178 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001179
Russell King1f0090a2011-03-16 23:35:25 +00001180config PL310_ERRATA_727915
1181 bool "Background Clean & Invalidate by Way operation can cause data corruption"
1182 depends on CACHE_L2X0
1183 help
1184 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1185 operation (offset 0x7FC). This operation runs in background so that
1186 PL310 can handle normal accesses while it is in progress. Under very
1187 rare circumstances, due to this erratum, write data can be lost when
1188 PL310 treats a cacheable write transaction during a Clean &
1189 Invalidate by Way operation.
1190
Will Deacon475d92f2010-09-28 14:02:02 +01001191config ARM_ERRATA_743622
1192 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1193 depends on CPU_V7
1194 help
1195 This option enables the workaround for the 743622 Cortex-A9
1196 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1197 optimisation in the Cortex-A9 Store Buffer may lead to data
1198 corruption. This workaround sets a specific bit in the diagnostic
1199 register of the Cortex-A9 which disables the Store Buffer
1200 optimisation, preventing the defect from occurring. This has no
1201 visible impact on the overall performance or power consumption of the
1202 processor.
1203
Will Deacon9a27c272011-02-18 16:36:35 +01001204config ARM_ERRATA_751472
1205 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
1206 depends on CPU_V7 && SMP
1207 help
1208 This option enables the workaround for the 751472 Cortex-A9 (prior
1209 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1210 completion of a following broadcasted operation if the second
1211 operation is received by a CPU before the ICIALLUIS has completed,
1212 potentially leading to corrupted entries in the cache or TLB.
1213
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001214config ARM_ERRATA_753970
1215 bool "ARM errata: cache sync operation may be faulty"
1216 depends on CACHE_PL310
1217 help
1218 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1219
1220 Under some condition the effect of cache sync operation on
1221 the store buffer still remains when the operation completes.
1222 This means that the store buffer is always asked to drain and
1223 this prevents it from merging any further writes. The workaround
1224 is to replace the normal offset of cache sync operation (0x730)
1225 by another offset targeting an unmapped PL310 register 0x740.
1226 This has the same effect as the cache sync operation: store buffer
1227 drain and waiting for all buffers empty.
1228
Will Deaconfcbdc5f2011-02-28 18:15:16 +01001229config ARM_ERRATA_754322
1230 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1231 depends on CPU_V7
1232 help
1233 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1234 r3p*) erratum. A speculative memory access may cause a page table walk
1235 which starts prior to an ASID switch but completes afterwards. This
1236 can populate the micro-TLB with a stale entry which may be hit with
1237 the new ASID. This workaround places two dsb instructions in the mm
1238 switching code so that no page table walks can cross the ASID switch.
1239
Will Deacon5dab26a2011-03-04 12:38:54 +01001240config ARM_ERRATA_754327
1241 bool "ARM errata: no automatic Store Buffer drain"
1242 depends on CPU_V7 && SMP
1243 help
1244 This option enables the workaround for the 754327 Cortex-A9 (prior to
1245 r2p0) erratum. The Store Buffer does not have any automatic draining
1246 mechanism and therefore a livelock may occur if an external agent
1247 continuously polls a memory location waiting to observe an update.
1248 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1249 written polling loops from denying visibility of updates to memory.
1250
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001251config PL310_ERRATA_727915
1252 bool "Background Clean & Invalidate by Way operation can cause data corruption"
1253 depends on CACHE_L2X0
1254 help
1255 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1256 operation (offset 0x7FC). This operation runs in background so that
1257 PL310 can handle normal accesses while it is in progress. Under very
1258 rare circumstances, due to this erratum, write data can be lost when
1259 PL310 treats a cacheable write transaction during a Clean &
1260 Invalidate by Way operation.
1261
1262config KSAPI
1263 tristate "KSAPI support (EXPERIMENTAL)"
1264 depends on ARCH_MSM_SCORPION || ARCH_MSM_KRAIT
1265 default n
1266 help
1267 KSAPI: Performance monitoring tool for linux.
1268 KSAPI records performance statistics for Snapdragon linux platform.
1269 It uses the /proc FS as a means to exchange configuration data and
1270 counter statistics. It can monitor the counter statistics for
1271 Scorpion processor supported hardware performance counters on a per
1272 thread basis or AXI counters on an overall system basis.
1273
Linus Torvalds1da177e2005-04-16 15:20:36 -07001274endmenu
1275
1276source "arch/arm/common/Kconfig"
1277
Linus Torvalds1da177e2005-04-16 15:20:36 -07001278menu "Bus support"
1279
1280config ARM_AMBA
1281 bool
1282
1283config ISA
1284 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001285 help
1286 Find out whether you have ISA slots on your motherboard. ISA is the
1287 name of a bus system, i.e. the way the CPU talks to the other stuff
1288 inside your box. Other bus systems are PCI, EISA, MicroChannel
1289 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1290 newer boards don't support it. If you have ISA, say Y, otherwise N.
1291
Russell King065909b2006-01-04 15:44:16 +00001292# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001293config ISA_DMA
1294 bool
Russell King065909b2006-01-04 15:44:16 +00001295 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001296
Russell King065909b2006-01-04 15:44:16 +00001297# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001298config ISA_DMA_API
1299 bool
Al Viro5cae8412005-05-04 05:39:22 +01001300
Linus Torvalds1da177e2005-04-16 15:20:36 -07001301config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001302 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001303 help
1304 Find out whether you have a PCI motherboard. PCI is the name of a
1305 bus system, i.e. the way the CPU talks to the other stuff inside
1306 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1307 VESA. If you have PCI, say Y, otherwise N.
1308
Anton Vorontsov52882172010-04-19 13:20:49 +01001309config PCI_DOMAINS
1310 bool
1311 depends on PCI
1312
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001313config PCI_NANOENGINE
1314 bool "BSE nanoEngine PCI support"
1315 depends on SA1100_NANOENGINE
1316 help
1317 Enable PCI on the BSE nanoEngine board.
1318
Matthew Wilcox36e23592007-07-10 10:54:40 -06001319config PCI_SYSCALL
1320 def_bool PCI
1321
Linus Torvalds1da177e2005-04-16 15:20:36 -07001322# Select the host bridge type
1323config PCI_HOST_VIA82C505
1324 bool
1325 depends on PCI && ARCH_SHARK
1326 default y
1327
Mike Rapoporta0113a92007-11-25 08:55:34 +01001328config PCI_HOST_ITE8152
1329 bool
1330 depends on PCI && MACH_ARMCORE
1331 default y
1332 select DMABOUNCE
1333
Linus Torvalds1da177e2005-04-16 15:20:36 -07001334source "drivers/pci/Kconfig"
1335
1336source "drivers/pcmcia/Kconfig"
1337
1338endmenu
1339
1340menu "Kernel Features"
1341
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001342source "kernel/time/Kconfig"
1343
Linus Torvalds1da177e2005-04-16 15:20:36 -07001344config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001345 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001346 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001347 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001348 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001349 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
Kukjin Kim10606aa2011-02-14 15:05:27 +09001350 ARCH_EXYNOS4 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001351 MSM_SMP || ARCH_SHMOBILE
Jens Axboef6dd9fa52008-06-10 20:48:30 +02001352 select USE_GENERIC_SMP_HELPERS
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001353 select HAVE_ARM_SCU if !MSM_SMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001354 help
1355 This enables support for systems with more than one CPU. If you have
1356 a system with only one CPU, like most personal computers, say N. If
1357 you have a system with more than one CPU, say Y.
1358
1359 If you say N here, the kernel will run on single and multiprocessor
1360 machines, but will use only one CPU of a multiprocessor machine. If
1361 you say Y here, the kernel will run on many, but not all, single
1362 processor machines. On a single processor machine, the kernel will
1363 run faster if you say N here.
1364
Adrian Bunk03502fa2008-02-03 15:50:21 +02001365 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001366 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001367 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001368
1369 If you don't know what to do here, say N.
1370
Russell Kingf00ec482010-09-04 10:47:48 +01001371config SMP_ON_UP
1372 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1373 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001374 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001375 default y
1376 help
1377 SMP kernels contain instructions which fail on non-SMP processors.
1378 Enabling this option allows the kernel to modify itself to make
1379 these instructions safe. Disabling it allows about 1K of space
1380 savings.
1381
1382 If you don't know what to do here, say Y.
1383
Russell Kinga8cbcd92009-05-16 11:51:14 +01001384config HAVE_ARM_SCU
1385 bool
1386 depends on SMP
1387 help
1388 This option enables support for the ARM system coherency unit
1389
Russell Kingf32f4ce2009-05-16 12:14:21 +01001390config HAVE_ARM_TWD
1391 bool
1392 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001393 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001394 help
1395 This options enables support for the ARM timer and watchdog unit
1396
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001397choice
1398 prompt "Memory split"
1399 default VMSPLIT_3G
1400 help
1401 Select the desired split between kernel and user memory.
1402
1403 If you are not absolutely sure what you are doing, leave this
1404 option alone!
1405
1406 config VMSPLIT_3G
1407 bool "3G/1G user/kernel split"
1408 config VMSPLIT_2G
1409 bool "2G/2G user/kernel split"
1410 config VMSPLIT_1G
1411 bool "1G/3G user/kernel split"
1412endchoice
1413
1414config PAGE_OFFSET
1415 hex
1416 default 0x40000000 if VMSPLIT_1G
1417 default 0x80000000 if VMSPLIT_2G
1418 default 0xC0000000
1419
Linus Torvalds1da177e2005-04-16 15:20:36 -07001420config NR_CPUS
1421 int "Maximum number of CPUs (2-32)"
1422 range 2 32
1423 depends on SMP
1424 default "4"
1425
Russell Kinga054a812005-11-02 22:24:33 +00001426config HOTPLUG_CPU
1427 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1428 depends on SMP && HOTPLUG && EXPERIMENTAL
1429 help
1430 Say Y here to experiment with turning CPUs off and on. CPUs
1431 can be controlled through /sys/devices/system/cpu.
1432
Russell King37ee16a2005-11-08 19:08:05 +00001433config LOCAL_TIMERS
1434 bool "Use local timer interrupts"
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001435 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
1436 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500 || \
1437 MSM_SMP)
Russell King37ee16a2005-11-08 19:08:05 +00001438 default y
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001439 select HAVE_ARM_TWD if (!MSM_SMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001440 help
1441 Enable support for local timers on SMP platforms, rather then the
1442 legacy IPI broadcast method. Local timers allows the system
1443 accounting to be spread across the timer interval, preventing a
1444 "thundering herd" at every timer tick.
1445
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001446source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001447
Russell Kingf8065812006-03-02 22:41:59 +00001448config HZ
1449 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001450 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001451 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001452 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001453 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001454 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001455 default 100
1456
Catalin Marinas16c79652009-07-24 12:33:02 +01001457config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001458 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001459 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001460 select AEABI
1461 select ARM_ASM_UNIFIED
1462 help
1463 By enabling this option, the kernel will be compiled in
1464 Thumb-2 mode. A compiler/assembler that understand the unified
1465 ARM-Thumb syntax is needed.
1466
1467 If unsure, say N.
1468
Dave Martin6f685c52011-03-03 11:41:12 +01001469config THUMB2_AVOID_R_ARM_THM_JUMP11
1470 bool "Work around buggy Thumb-2 short branch relocations in gas"
1471 depends on THUMB2_KERNEL && MODULES
1472 default y
1473 help
1474 Various binutils versions can resolve Thumb-2 branches to
1475 locally-defined, preemptible global symbols as short-range "b.n"
1476 branch instructions.
1477
1478 This is a problem, because there's no guarantee the final
1479 destination of the symbol, or any candidate locations for a
1480 trampoline, are within range of the branch. For this reason, the
1481 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1482 relocation in modules at all, and it makes little sense to add
1483 support.
1484
1485 The symptom is that the kernel fails with an "unsupported
1486 relocation" error when loading some modules.
1487
1488 Until fixed tools are available, passing
1489 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1490 code which hits this problem, at the cost of a bit of extra runtime
1491 stack usage in some cases.
1492
1493 The problem is described in more detail at:
1494 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1495
1496 Only Thumb-2 kernels are affected.
1497
1498 Unless you are sure your tools don't have this problem, say Y.
1499
Catalin Marinas0becb082009-07-24 12:32:53 +01001500config ARM_ASM_UNIFIED
1501 bool
1502
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001503config AEABI
1504 bool "Use the ARM EABI to compile the kernel"
1505 help
1506 This option allows for the kernel to be compiled using the latest
1507 ARM ABI (aka EABI). This is only useful if you are using a user
1508 space environment that is also compiled with EABI.
1509
1510 Since there are major incompatibilities between the legacy ABI and
1511 EABI, especially with regard to structure member alignment, this
1512 option also changes the kernel syscall calling convention to
1513 disambiguate both ABIs and allow for backward compatibility support
1514 (selected with CONFIG_OABI_COMPAT).
1515
1516 To use this you need GCC version 4.0.0 or later.
1517
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001518config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001519 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001520 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001521 default y
1522 help
1523 This option preserves the old syscall interface along with the
1524 new (ARM EABI) one. It also provides a compatibility layer to
1525 intercept syscalls that have structure arguments which layout
1526 in memory differs between the legacy ABI and the new ARM EABI
1527 (only for non "thumb" binaries). This option adds a tiny
1528 overhead to all syscalls and produces a slightly larger kernel.
1529 If you know you'll be using only pure EABI user space then you
1530 can say N here. If this option is not selected and you attempt
1531 to execute a legacy ABI binary then the result will be
1532 UNPREDICTABLE (in fact it can be predicted that it won't work
1533 at all). If in doubt say Y.
1534
Mel Gormaneb335752009-05-13 17:34:48 +01001535config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001536 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001537
Russell King05944d72006-11-30 20:43:51 +00001538config ARCH_SPARSEMEM_ENABLE
1539 bool
1540
Russell King07a2f732008-10-01 21:39:58 +01001541config ARCH_SPARSEMEM_DEFAULT
1542 def_bool ARCH_SPARSEMEM_ENABLE
1543
Russell King05944d72006-11-30 20:43:51 +00001544config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001545 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001546
Will Deacon7b7bf492011-05-19 13:21:14 +01001547config HAVE_ARCH_PFN_VALID
1548 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1549
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001550config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001551 bool "High Memory Support"
1552 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001553 help
1554 The address space of ARM processors is only 4 Gigabytes large
1555 and it has to accommodate user address space, kernel address
1556 space as well as some memory mapped IO. That means that, if you
1557 have a large amount of physical memory and/or IO, not all of the
1558 memory can be "permanently mapped" by the kernel. The physical
1559 memory that is not permanently mapped is called "high memory".
1560
1561 Depending on the selected kernel/user memory split, minimum
1562 vmalloc space and actual amount of RAM, you may not need this
1563 option which should result in a slightly faster kernel.
1564
1565 If unsure, say n.
1566
Russell King65cec8e2009-08-17 20:02:06 +01001567config HIGHPTE
1568 bool "Allocate 2nd-level pagetables from highmem"
1569 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001570
Jamie Iles1b8873a2010-02-02 20:25:44 +01001571config HW_PERF_EVENTS
1572 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001573 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001574 default y
1575 help
1576 Enable hardware performance counter support for perf events. If
1577 disabled, perf events will use software events only.
1578
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001579config VMALLOC_RESERVE
1580 hex "Reserved vmalloc space"
1581 default 0x08000000
1582 depends on MMU
1583 help
1584 Reserved vmalloc space if not specified on the kernel commandline.
1585
Dave Hansen3f22ab22005-06-23 00:07:43 -07001586source "mm/Kconfig"
1587
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001588config ARCH_MEMORY_PROBE
1589 def_bool n
1590 depends on MEMORY_HOTPLUG
1591
1592config ARCH_MEMORY_REMOVE
1593 def_bool n
1594 depends on MEMORY_HOTPLUG
1595
1596config DONT_RESERVE_FROM_MOVABLE_ZONE
Larry Basselb208a742011-08-12 14:48:37 -07001597 def_bool y
1598 depends on MEMORY_HOTPLUG
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001599
Larry Bassel150d5032011-09-20 14:32:13 -07001600config DONT_MAP_HOLE_AFTER_MEMBANK0
1601 def_bool n
1602 depends on SPARSEMEM
1603
Magnus Dammc1b2d972010-07-05 10:00:11 +01001604config FORCE_MAX_ZONEORDER
1605 int "Maximum zone order" if ARCH_SHMOBILE
1606 range 11 64 if ARCH_SHMOBILE
1607 default "9" if SA1111
1608 default "11"
1609 help
1610 The kernel memory allocator divides physically contiguous memory
1611 blocks into "zones", where each zone is a power of two number of
1612 pages. This option selects the largest power of two that the kernel
1613 keeps in the memory allocator. If you need to allocate very large
1614 blocks of physically contiguous memory, then you may need to
1615 increase this value.
1616
1617 This config option is actually maximum order plus one. For example,
1618 a value of 11 means that the largest free memory block is 2^10 pages.
1619
Linus Torvalds1da177e2005-04-16 15:20:36 -07001620config LEDS
1621 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5b2008-04-22 01:43:27 +01001622 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001623 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001624 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1625 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001626 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001627 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001628 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001629 help
1630 If you say Y here, the LEDs on your machine will be used
1631 to provide useful information about your current system status.
1632
1633 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1634 be able to select which LEDs are active using the options below. If
1635 you are compiling a kernel for the EBSA-110 or the LART however, the
1636 red LED will simply flash regularly to indicate that the system is
1637 still functional. It is safe to say Y here if you have a CATS
1638 system, but the driver will do nothing.
1639
1640config LEDS_TIMER
1641 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001642 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1643 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001644 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001645 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001646 default y if ARCH_EBSA110
1647 help
1648 If you say Y here, one of the system LEDs (the green one on the
1649 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1650 will flash regularly to indicate that the system is still
1651 operational. This is mainly useful to kernel hackers who are
1652 debugging unstable kernels.
1653
1654 The LART uses the same LED for both Timer LED and CPU usage LED
1655 functions. You may choose to use both, but the Timer LED function
1656 will overrule the CPU usage LED.
1657
1658config LEDS_CPU
1659 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001660 !ARCH_OMAP) \
1661 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1662 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001663 depends on LEDS
1664 help
1665 If you say Y here, the red LED will be used to give a good real
1666 time indication of CPU usage, by lighting whenever the idle task
1667 is not currently executing.
1668
1669 The LART uses the same LED for both Timer LED and CPU usage LED
1670 functions. You may choose to use both, but the Timer LED function
1671 will overrule the CPU usage LED.
1672
1673config ALIGNMENT_TRAP
1674 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001675 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001676 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001677 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001678 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001679 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001680 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1681 address divisible by 4. On 32-bit ARM processors, these non-aligned
1682 fetch/store instructions will be emulated in software if you say
1683 here, which has a severe performance impact. This is necessary for
1684 correct operation of some network protocols. With an IP-only
1685 configuration it is safe to say N, otherwise say Y.
1686
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001687config UACCESS_WITH_MEMCPY
1688 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1689 depends on MMU && EXPERIMENTAL
1690 default y if CPU_FEROCEON
1691 help
1692 Implement faster copy_to_user and clear_user methods for CPU
1693 cores where a 8-word STM instruction give significantly higher
1694 memory write throughput than a sequence of individual 32bit stores.
1695
1696 A possible side effect is a slight increase in scheduling latency
1697 between threads sharing the same address space if they invoke
1698 such copy operations with large buffers.
1699
1700 However, if the CPU data cache is using a write-allocate mode,
1701 this option is unlikely to provide any performance gain.
1702
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001703config SECCOMP
1704 bool
1705 prompt "Enable seccomp to safely compute untrusted bytecode"
1706 ---help---
1707 This kernel feature is useful for number crunching applications
1708 that may need to compute untrusted bytecode during their
1709 execution. By using pipes or other transports made available to
1710 the process as file descriptors supporting the read/write
1711 syscalls, it's possible to isolate those applications in
1712 their own address space using seccomp. Once seccomp is
1713 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1714 and the task is only allowed to execute a few safe syscalls
1715 defined by each seccomp mode.
1716
Nicolas Pitrec743f382010-05-24 23:55:42 -04001717config CC_STACKPROTECTOR
1718 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001719 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001720 help
1721 This option turns on the -fstack-protector GCC feature. This
1722 feature puts, at the beginning of functions, a canary value on
1723 the stack just before the return address, and validates
1724 the value just before actually returning. Stack based buffer
1725 overflows (that need to overwrite this return address) now also
1726 overwrite the canary, which gets detected and the attack is then
1727 neutralized via a kernel panic.
1728 This feature requires gcc version 4.2 or above.
1729
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001730config DEPRECATED_PARAM_STRUCT
1731 bool "Provide old way to pass kernel parameters"
1732 help
1733 This was deprecated in 2001 and announced to live on for 5 years.
1734 Some old boot loaders still use this way.
1735
Dima Zavin76594492011-08-23 15:56:50 -07001736config ARM_FLUSH_CONSOLE_ON_RESTART
1737 bool "Force flush the console on restart"
1738 help
1739 If the console is locked while the system is rebooted, the messages
1740 in the temporary logbuffer would not have propogated to all the
1741 console drivers. This option forces the console lock to be
1742 released if it failed to be acquired, which will cause all the
1743 pending messages to be flushed.
1744
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001745config CP_ACCESS
1746 tristate "CP register access tool"
1747 default m
1748 help
1749 Provide support for Coprocessor register access using /sys
1750 interface. Read and write to CP registers from userspace
1751 through sysfs interface. A sys file (cp_rw) will be created under
1752 /sys/devices/system/cpaccess/cpaccess0.
1753
1754 If unsure, say N.
1755
Linus Torvalds1da177e2005-04-16 15:20:36 -07001756endmenu
1757
1758menu "Boot options"
1759
Grant Likely9eb8f672011-04-28 14:27:20 -06001760config USE_OF
1761 bool "Flattened Device Tree support"
1762 select OF
1763 select OF_EARLY_FLATTREE
1764 help
1765 Include support for flattened device tree machine descriptions.
1766
Linus Torvalds1da177e2005-04-16 15:20:36 -07001767# Compressed boot loader in ROM. Yes, we really want to ask about
1768# TEXT and BSS so we preserve their values in the config files.
1769config ZBOOT_ROM_TEXT
1770 hex "Compressed ROM boot loader base address"
1771 default "0"
1772 help
1773 The physical address at which the ROM-able zImage is to be
1774 placed in the target. Platforms which normally make use of
1775 ROM-able zImage formats normally set this to a suitable
1776 value in their defconfig file.
1777
1778 If ZBOOT_ROM is not enabled, this has no effect.
1779
1780config ZBOOT_ROM_BSS
1781 hex "Compressed ROM boot loader BSS address"
1782 default "0"
1783 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001784 The base address of an area of read/write memory in the target
1785 for the ROM-able zImage which must be available while the
1786 decompressor is running. It must be large enough to hold the
1787 entire decompressed kernel plus an additional 128 KiB.
1788 Platforms which normally make use of ROM-able zImage formats
1789 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001790
1791 If ZBOOT_ROM is not enabled, this has no effect.
1792
1793config ZBOOT_ROM
1794 bool "Compressed boot loader in ROM/flash"
1795 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1796 help
1797 Say Y here if you intend to execute your compressed kernel image
1798 (zImage) directly from ROM or flash. If unsure, say N.
1799
Simon Hormanf45b1142011-01-11 04:01:08 +01001800config ZBOOT_ROM_MMCIF
1801 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
1802 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1803 help
1804 Say Y here to include experimental MMCIF loading code in the
1805 ROM-able zImage. With this enabled it is possible to write the
1806 the ROM-able zImage kernel image to an MMC card and boot the
1807 kernel straight from the reset vector. At reset the processor
1808 Mask ROM will load the first part of the the ROM-able zImage
1809 which in turn loads the rest the kernel image to RAM using the
1810 MMCIF hardware block.
1811
John Bonesioede5d5d2011-05-27 18:45:50 -04001812config ARM_APPENDED_DTB
1813 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1814 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1815 help
1816 With this option, the boot code will look for a device tree binary
1817 (DTB) appended to zImage
1818 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1819
1820 This is meant as a backward compatibility convenience for those
1821 systems with a bootloader that can't be upgraded to accommodate
1822 the documented boot protocol using a device tree.
1823
1824 Beware that there is very little in terms of protection against
1825 this option being confused by leftover garbage in memory that might
1826 look like a DTB header after a reboot if no actual DTB is appended
1827 to zImage. Do not leave this option active in a production kernel
1828 if you don't intend to always append a DTB. Proper passing of the
1829 location into r2 of a bootloader provided DTB is always preferable
1830 to this option.
1831
Nicolas Pitrebbc98d12011-09-13 22:37:07 -04001832config ARM_ATAG_DTB_COMPAT
1833 bool "Supplement the appended DTB with traditional ATAG information"
1834 depends on ARM_APPENDED_DTB
1835 help
1836 Some old bootloaders can't be updated to a DTB capable one, yet
1837 they provide ATAGs with memory configuration, the ramdisk address,
1838 the kernel cmdline string, etc. Such information is dynamically
1839 provided by the bootloader and can't always be stored in a static
1840 DTB. To allow a device tree enabled kernel to be used with such
1841 bootloaders, this option allows zImage to extract the information
1842 from the ATAG list and store it at run time into the appended DTB.
1843
Linus Torvalds1da177e2005-04-16 15:20:36 -07001844config CMDLINE
1845 string "Default kernel command string"
1846 default ""
1847 help
1848 On some architectures (EBSA110 and CATS), there is currently no way
1849 for the boot loader to pass arguments to the kernel. For these
1850 architectures, you should supply some command-line options at build
1851 time by entering them here. As a minimum, you should specify the
1852 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1853
Victor Boivie4394c122011-05-04 17:07:55 +01001854choice
1855 prompt "Kernel command line type" if CMDLINE != ""
1856 default CMDLINE_FROM_BOOTLOADER
1857
1858config CMDLINE_FROM_BOOTLOADER
1859 bool "Use bootloader kernel arguments if available"
1860 help
1861 Uses the command-line options passed by the boot loader. If
1862 the boot loader doesn't provide any, the default kernel command
1863 string provided in CMDLINE will be used.
1864
1865config CMDLINE_EXTEND
1866 bool "Extend bootloader kernel arguments"
1867 help
1868 The command-line arguments provided by the boot loader will be
1869 appended to the default kernel command string.
1870
Alexander Holler92d20402010-02-16 19:04:53 +01001871config CMDLINE_FORCE
1872 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001873 help
1874 Always use the default kernel command string, even if the boot
1875 loader passes other arguments to the kernel.
1876 This is useful if you cannot or don't want to change the
1877 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001878endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001879
Linus Torvalds1da177e2005-04-16 15:20:36 -07001880config XIP_KERNEL
1881 bool "Kernel Execute-In-Place from ROM"
1882 depends on !ZBOOT_ROM
1883 help
1884 Execute-In-Place allows the kernel to run from non-volatile storage
1885 directly addressable by the CPU, such as NOR flash. This saves RAM
1886 space since the text section of the kernel is not loaded from flash
1887 to RAM. Read-write sections, such as the data section and stack,
1888 are still copied to RAM. The XIP kernel is not compressed since
1889 it has to run directly from flash, so it will take more space to
1890 store it. The flash address used to link the kernel object files,
1891 and for storing it, is configuration dependent. Therefore, if you
1892 say Y here, you must know the proper physical address where to
1893 store the kernel image depending on your own flash memory usage.
1894
1895 Also note that the make target becomes "make xipImage" rather than
1896 "make zImage" or "make Image". The final kernel binary to put in
1897 ROM memory will be arch/arm/boot/xipImage.
1898
1899 If unsure, say N.
1900
1901config XIP_PHYS_ADDR
1902 hex "XIP Kernel Physical Location"
1903 depends on XIP_KERNEL
1904 default "0x00080000"
1905 help
1906 This is the physical address in your flash memory the kernel will
1907 be linked for and stored to. This address is dependent on your
1908 own flash usage.
1909
Richard Purdiec587e4a2007-02-06 21:29:00 +01001910config KEXEC
1911 bool "Kexec system call (EXPERIMENTAL)"
1912 depends on EXPERIMENTAL
1913 help
1914 kexec is a system call that implements the ability to shutdown your
1915 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001916 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001917 you can start any kernel with it, not just Linux.
1918
1919 It is an ongoing process to be certain the hardware in a machine
1920 is properly shutdown, so do not be surprised if this code does not
1921 initially work for you. It may help to enable device hotplugging
1922 support.
1923
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001924config ATAGS_PROC
1925 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001926 depends on KEXEC
1927 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001928 help
1929 Should the atags used to boot the kernel be exported in an "atags"
1930 file in procfs. Useful with kexec.
1931
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01001932config CRASH_DUMP
1933 bool "Build kdump crash kernel (EXPERIMENTAL)"
1934 depends on EXPERIMENTAL
1935 help
1936 Generate crash dump after being started by kexec. This should
1937 be normally only set in special crash dump kernels which are
1938 loaded in the main kernel with kexec-tools into a specially
1939 reserved region and then later executed after a crash by
1940 kdump/kexec. The crash dump kernel must be compiled to a
1941 memory address not used by the main kernel
1942
1943 For more details see Documentation/kdump/kdump.txt
1944
Eric Miaoe69edc792010-07-05 15:56:50 +02001945config AUTO_ZRELADDR
1946 bool "Auto calculation of the decompressed kernel image address"
1947 depends on !ZBOOT_ROM && !ARCH_U300
1948 help
1949 ZRELADDR is the physical address where the decompressed kernel
1950 image will be placed. If AUTO_ZRELADDR is selected, the address
1951 will be determined at run-time by masking the current IP with
1952 0xf8000000. This assumes the zImage being placed in the first 128MB
1953 from start of memory.
1954
Linus Torvalds1da177e2005-04-16 15:20:36 -07001955endmenu
1956
Russell Kingac9d7ef2008-08-18 17:26:00 +01001957menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001958
Ben Dooks89c52ed2009-07-30 23:23:24 +01001959if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001960
1961source "drivers/cpufreq/Kconfig"
1962
Yong Shen64f102b2010-10-21 21:18:59 +08001963config CPU_FREQ_IMX
1964 tristate "CPUfreq driver for i.MX CPUs"
1965 depends on ARCH_MXC && CPU_FREQ
1966 help
1967 This enables the CPUfreq driver for i.MX CPUs.
1968
Linus Torvalds1da177e2005-04-16 15:20:36 -07001969config CPU_FREQ_SA1100
1970 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001971
1972config CPU_FREQ_SA1110
1973 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001974
1975config CPU_FREQ_INTEGRATOR
1976 tristate "CPUfreq driver for ARM Integrator CPUs"
1977 depends on ARCH_INTEGRATOR && CPU_FREQ
1978 default y
1979 help
1980 This enables the CPUfreq driver for ARM Integrator CPUs.
1981
1982 For details, take a look at <file:Documentation/cpu-freq>.
1983
1984 If in doubt, say Y.
1985
Russell King9e2697f2007-12-14 13:30:14 +00001986config CPU_FREQ_PXA
1987 bool
1988 depends on CPU_FREQ && ARCH_PXA && PXA25x
1989 default y
1990 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1991
Mark Brownb3748dd2009-06-15 11:23:20 +01001992config CPU_FREQ_S3C64XX
1993 bool "CPUfreq support for Samsung S3C64XX CPUs"
1994 depends on CPU_FREQ && CPU_S3C6410
1995
Ben Dooks9d56c022009-07-30 23:23:25 +01001996config CPU_FREQ_S3C
1997 bool
1998 help
1999 Internal configuration node for common cpufreq on Samsung SoC
2000
2001config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002002 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002003 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
2004 select CPU_FREQ_S3C
2005 help
2006 This enables the CPUfreq driver for the Samsung S3C24XX family
2007 of CPUs.
2008
2009 For details, take a look at <file:Documentation/cpu-freq>.
2010
2011 If in doubt, say N.
2012
2013config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002014 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002015 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2016 help
2017 Compile in support for changing the PLL frequency from the
2018 S3C24XX series CPUfreq driver. The PLL takes time to settle
2019 after a frequency change, so by default it is not enabled.
2020
2021 This also means that the PLL tables for the selected CPU(s) will
2022 be built which may increase the size of the kernel image.
2023
2024config CPU_FREQ_S3C24XX_DEBUG
2025 bool "Debug CPUfreq Samsung driver core"
2026 depends on CPU_FREQ_S3C24XX
2027 help
2028 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2029
2030config CPU_FREQ_S3C24XX_IODEBUG
2031 bool "Debug CPUfreq Samsung driver IO timing"
2032 depends on CPU_FREQ_S3C24XX
2033 help
2034 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2035
Ben Dookse6d197a2009-07-30 23:23:42 +01002036config CPU_FREQ_S3C24XX_DEBUGFS
2037 bool "Export debugfs for CPUFreq"
2038 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2039 help
2040 Export status information via debugfs.
2041
Linus Torvalds1da177e2005-04-16 15:20:36 -07002042endif
2043
Russell Kingac9d7ef2008-08-18 17:26:00 +01002044source "drivers/cpuidle/Kconfig"
2045
2046endmenu
2047
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07002048config CPU_FREQ_MSM
2049 bool
2050 depends on CPU_FREQ && ARCH_MSM
2051 default y
2052 help
2053 This enables the CPUFreq driver for Qualcomm CPUs.
2054 If in doubt, say Y.
2055
Linus Torvalds1da177e2005-04-16 15:20:36 -07002056menu "Floating point emulation"
2057
2058comment "At least one emulation must be selected"
2059
2060config FPE_NWFPE
2061 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002062 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002063 ---help---
2064 Say Y to include the NWFPE floating point emulator in the kernel.
2065 This is necessary to run most binaries. Linux does not currently
2066 support floating point hardware so you need to say Y here even if
2067 your machine has an FPA or floating point co-processor podule.
2068
2069 You may say N here if you are going to load the Acorn FPEmulator
2070 early in the bootup.
2071
2072config FPE_NWFPE_XP
2073 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002074 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002075 help
2076 Say Y to include 80-bit support in the kernel floating-point
2077 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2078 Note that gcc does not generate 80-bit operations by default,
2079 so in most cases this option only enlarges the size of the
2080 floating point emulator without any good reason.
2081
2082 You almost surely want to say N here.
2083
2084config FPE_FASTFPE
2085 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002086 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002087 ---help---
2088 Say Y here to include the FAST floating point emulator in the kernel.
2089 This is an experimental much faster emulator which now also has full
2090 precision for the mantissa. It does not support any exceptions.
2091 It is very simple, and approximately 3-6 times faster than NWFPE.
2092
2093 It should be sufficient for most programs. It may be not suitable
2094 for scientific calculations, but you have to check this for yourself.
2095 If you do not feel you need a faster FP emulation you should better
2096 choose NWFPE.
2097
2098config VFP
2099 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002100 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002101 help
2102 Say Y to include VFP support code in the kernel. This is needed
2103 if your hardware includes a VFP unit.
2104
2105 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2106 release notes and additional status information.
2107
2108 Say N if your target does not have VFP hardware.
2109
Catalin Marinas25ebee02007-09-25 15:22:24 +01002110config VFPv3
2111 bool
2112 depends on VFP
2113 default y if CPU_V7
2114
Catalin Marinasb5872db2008-01-10 19:16:17 +01002115config NEON
2116 bool "Advanced SIMD (NEON) Extension support"
2117 depends on VFPv3 && CPU_V7
2118 help
2119 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2120 Extension.
2121
Linus Torvalds1da177e2005-04-16 15:20:36 -07002122endmenu
2123
2124menu "Userspace binary formats"
2125
2126source "fs/Kconfig.binfmt"
2127
2128config ARTHUR
2129 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00002130 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002131 help
2132 Say Y here to include the kernel code necessary if you want to run
2133 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2134 experimental; if this sounds frightening, say N and sleep in peace.
2135 You can also say M here to compile this support as a module (which
2136 will be called arthur).
2137
2138endmenu
2139
2140menu "Power management options"
2141
Russell Kingeceab4a2005-11-15 11:31:41 +00002142source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002143
Johannes Bergf4cb5702007-12-08 02:14:00 +01002144config ARCH_SUSPEND_POSSIBLE
Rohit Vaswaniddeb52a2011-08-16 12:26:32 -07002145 depends on !ARCH_S5P64X0 && !ARCH_S5PC100 && !ARCH_FSM9XXX && !ARCH_MSM9615
Russell King6a786182011-04-02 10:15:28 +01002146 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
2147 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
Johannes Bergf4cb5702007-12-08 02:14:00 +01002148 def_bool y
2149
Linus Torvalds1da177e2005-04-16 15:20:36 -07002150endmenu
2151
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002152source "net/Kconfig"
2153
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002154source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002155
2156source "fs/Kconfig"
2157
Linus Torvalds1da177e2005-04-16 15:20:36 -07002158source "arch/arm/Kconfig.debug"
2159
2160source "security/Kconfig"
2161
2162source "crypto/Kconfig"
2163
2164source "lib/Kconfig"