blob: 27ebd9b3dbaaa538fd68eafa52c7af7150ca33fc [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
Russell Kingb1b3f492012-10-06 17:12:25 +01004 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
Catalin Marinas74634492012-07-30 14:41:09 -07005 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
Russell Kingb1b3f492012-10-06 17:12:25 +01006 select ARCH_HAVE_CUSTOM_GPIO_H
7 select ARCH_WANT_IPC_PARSE_VERSION
Stephen Boydee951c62012-10-29 19:19:34 +01008 select BUILDTIME_EXTABLE_SORT if MMU
Russell Kingb1b3f492012-10-06 17:12:25 +01009 select CPU_PM if (SUSPEND || CPU_IDLE)
Will Deacon39b175a2012-12-04 12:57:11 +010010 select DCACHE_WORD_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && !CPU_BIG_ENDIAN && MMU
Russell Kingb1b3f492012-10-06 17:12:25 +010011 select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI)
12 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
13 select GENERIC_IRQ_PROBE
14 select GENERIC_IRQ_SHOW
15 select GENERIC_KERNEL_THREAD
Linus Torvalds3d6ee362012-10-13 17:18:53 -070016 select GENERIC_KERNEL_EXECVE
Russell Kingb1b3f492012-10-06 17:12:25 +010017 select GENERIC_PCI_IOMAP
18 select GENERIC_SMP_IDLE_THREAD
19 select GENERIC_STRNCPY_FROM_USER
20 select GENERIC_STRNLEN_USER
21 select HARDIRQS_SW_RESEND
22 select HAVE_AOUT
Rabin Vincent09f05d82012-02-18 17:52:41 +010023 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
Jason Wessel5cbad0e2008-02-20 13:33:40 -060024 select HAVE_ARCH_KGDB
Will Drewry4095ccc2012-11-15 22:12:29 +010025 select HAVE_ARCH_SECCOMP_FILTER
Wade Farnsworth0693bf62012-04-04 16:19:47 +010026 select HAVE_ARCH_TRACEHOOK
Russell Kingb1b3f492012-10-06 17:12:25 +010027 select HAVE_BPF_JIT
28 select HAVE_C_RECORDMCOUNT
29 select HAVE_DEBUG_KMEMLEAK
30 select HAVE_DMA_API_DEBUG
31 select HAVE_DMA_ATTRS
32 select HAVE_DMA_CONTIGUOUS if MMU
33 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
34 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
35 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
36 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
37 select HAVE_GENERIC_DMA_COHERENT
38 select HAVE_GENERIC_HARDIRQS
39 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
40 select HAVE_IDE if PCI || ISA || PCMCIA
41 select HAVE_IRQ_WORK
42 select HAVE_KERNEL_GZIP
43 select HAVE_KERNEL_LZMA
44 select HAVE_KERNEL_LZO
45 select HAVE_KERNEL_XZ
Jon Medhurst856bc352011-06-14 13:09:39 +010046 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080047 select HAVE_KRETPROBES if (HAVE_KPROBES)
Russell Kingb1b3f492012-10-06 17:12:25 +010048 select HAVE_MEMBLOCK
49 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jamie Iles7ada1892010-02-02 20:24:58 +010050 select HAVE_PERF_EVENTS
Will Deacone513f8b2010-06-25 12:24:53 +010051 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kingb1b3f492012-10-06 17:12:25 +010052 select HAVE_SYSCALL_TRACEPOINTS
Catalin Marinasaf1839e2012-10-08 16:28:08 -070053 select HAVE_UID16
Anna-Maria Gleixner3d92a712012-05-18 16:45:44 +000054 select KTIME_SCALAR
Russell Kingb1b3f492012-10-06 17:12:25 +010055 select PERF_USE_VMALLOC
56 select RTC_LIB
57 select SYS_SUPPORTS_APM_EMULATION
David Howells786d35d2012-09-28 14:31:03 +093058 select HAVE_MOD_ARCH_SPECIFIC if ARM_UNWIND
59 select MODULES_USE_ELF_REL
Linus Torvalds1da177e2005-04-16 15:20:36 -070060 help
61 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000062 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070063 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000064 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070065 Europe. There is an ARM Linux project with a web page at
66 <http://www.arm.linux.org.uk/>.
67
Russell King74facff2011-06-02 11:16:22 +010068config ARM_HAS_SG_CHAIN
69 bool
70
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020071config NEED_SG_DMA_LENGTH
72 bool
73
74config ARM_DMA_USE_IOMMU
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020075 bool
Russell Kingb1b3f492012-10-06 17:12:25 +010076 select ARM_HAS_SG_CHAIN
77 select NEED_SG_DMA_LENGTH
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020078
Russell King1a189b92008-04-13 21:41:55 +010079config HAVE_PWM
80 bool
81
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010082config MIGHT_HAVE_PCI
83 bool
84
Ralf Baechle75e71532007-02-09 17:08:58 +000085config SYS_SUPPORTS_APM_EMULATION
86 bool
87
David Brownell0a938b92007-03-05 00:30:18 -080088config GENERIC_GPIO
89 bool
David Brownell0a938b92007-03-05 00:30:18 -080090
Linus Walleijbc581772009-09-15 17:30:37 +010091config HAVE_TCM
92 bool
93 select GENERIC_ALLOCATOR
94
Russell Kinge119bff2010-01-10 17:23:29 +000095config HAVE_PROC_CPU
96 bool
97
Al Viro5ea81762007-02-11 15:41:31 +000098config NO_IOPORT
99 bool
Al Viro5ea81762007-02-11 15:41:31 +0000100
Linus Torvalds1da177e2005-04-16 15:20:36 -0700101config EISA
102 bool
103 ---help---
104 The Extended Industry Standard Architecture (EISA) bus was
105 developed as an open alternative to the IBM MicroChannel bus.
106
107 The EISA bus provided some of the features of the IBM MicroChannel
108 bus while maintaining backward compatibility with cards made for
109 the older ISA bus. The EISA bus saw limited use between 1988 and
110 1995 when it was made obsolete by the PCI bus.
111
112 Say Y here if you are building a kernel for an EISA-based machine.
113
114 Otherwise, say N.
115
116config SBUS
117 bool
118
Russell Kingf16fb1e2007-04-28 09:59:37 +0100119config STACKTRACE_SUPPORT
120 bool
121 default y
122
Nicolas Pitref76e9152008-04-24 01:31:46 -0400123config HAVE_LATENCYTOP_SUPPORT
124 bool
125 depends on !SMP
126 default y
127
Russell Kingf16fb1e2007-04-28 09:59:37 +0100128config LOCKDEP_SUPPORT
129 bool
130 default y
131
Russell King7ad1bcb2006-08-27 12:07:02 +0100132config TRACE_IRQFLAGS_SUPPORT
133 bool
134 default y
135
Linus Torvalds1da177e2005-04-16 15:20:36 -0700136config RWSEM_GENERIC_SPINLOCK
137 bool
138 default y
139
140config RWSEM_XCHGADD_ALGORITHM
141 bool
142
David Howellsf0d1b0b2006-12-08 02:37:49 -0800143config ARCH_HAS_ILOG2_U32
144 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800145
146config ARCH_HAS_ILOG2_U64
147 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800148
Ben Dooks89c52ed2009-07-30 23:23:24 +0100149config ARCH_HAS_CPUFREQ
150 bool
151 help
152 Internal node to signify that the ARCH has CPUFREQ support
153 and that the relevant menu configurations are displayed for
154 it.
155
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800156config GENERIC_HWEIGHT
157 bool
158 default y
159
Linus Torvalds1da177e2005-04-16 15:20:36 -0700160config GENERIC_CALIBRATE_DELAY
161 bool
162 default y
163
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100164config ARCH_MAY_HAVE_PC_FDC
165 bool
166
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800167config ZONE_DMA
168 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800169
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800170config NEED_DMA_MAP_STATE
171 def_bool y
172
Rob Herring58af4a22012-03-20 14:33:01 -0500173config ARCH_HAS_DMA_SET_COHERENT_MASK
174 bool
175
Linus Torvalds1da177e2005-04-16 15:20:36 -0700176config GENERIC_ISA_DMA
177 bool
178
Linus Torvalds1da177e2005-04-16 15:20:36 -0700179config FIQ
180 bool
181
Rob Herring13a50452012-02-07 09:28:22 -0600182config NEED_RET_TO_USER
183 bool
184
Al Viro034d2f52005-12-19 16:27:59 -0500185config ARCH_MTD_XIP
186 bool
187
Hyok S. Choic760fc12006-03-27 15:18:50 +0100188config VECTORS_BASE
189 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900190 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100191 default DRAM_BASE if REMAP_VECTORS_TO_RAM
192 default 0x00000000
193 help
194 The base address of exception vectors.
195
Russell Kingdc21af92011-01-04 19:09:43 +0000196config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100197 bool "Patch physical to virtual translations at runtime" if EMBEDDED
198 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100199 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000200 depends on !ARCH_REALVIEW || !SPARSEMEM
201 help
Russell King111e9a52011-05-12 10:02:42 +0100202 Patch phys-to-virt and virt-to-phys translation functions at
203 boot and module load time according to the position of the
204 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000205
Russell King111e9a52011-05-12 10:02:42 +0100206 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100207 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000208
Russell Kingc1beced2011-08-10 10:23:45 +0100209 Only disable this option if you know that you do not require
210 this feature (eg, building a kernel for a single machine) and
211 you need to shrink the kernel to the minimal size.
212
Rob Herring01464222012-08-28 13:06:41 -0500213config NEED_MACH_GPIO_H
214 bool
215 help
216 Select this when mach/gpio.h is required to provide special
217 definitions for this platform. The need for mach/gpio.h should
218 be avoided when possible.
219
Rob Herringc334bc12012-03-04 22:03:33 -0600220config NEED_MACH_IO_H
221 bool
222 help
223 Select this when mach/io.h is required to provide special
224 definitions for this platform. The need for mach/io.h should
225 be avoided when possible.
226
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400227config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400228 bool
Russell King111e9a52011-05-12 10:02:42 +0100229 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400230 Select this when mach/memory.h is required to provide special
231 definitions for this platform. The need for mach/memory.h should
232 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400233
234config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100235 hex "Physical address of main memory" if MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400236 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre974c0722011-12-02 23:09:42 +0100237 default DRAM_BASE if !MMU
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400238 help
239 Please provide the physical address corresponding to the
240 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000241
Simon Glass87e040b2011-08-16 23:44:26 +0100242config GENERIC_BUG
243 def_bool y
244 depends on BUG
245
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246source "init/Kconfig"
247
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700248source "kernel/Kconfig.freezer"
249
Linus Torvalds1da177e2005-04-16 15:20:36 -0700250menu "System Type"
251
Hyok S. Choi3c427972009-07-24 12:35:00 +0100252config MMU
253 bool "MMU-based Paged Memory Management Support"
254 default y
255 help
256 Select if you want MMU-based virtualised addressing space
257 support by paged memory management. If unsure, say 'Y'.
258
Russell Kingccf50e22010-03-15 19:03:06 +0000259#
260# The "ARM system type" choice list is ordered alphabetically by option
261# text. Please add new entries in the option alphabetic order.
262#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700263choice
264 prompt "ARM system type"
Rob Herring387798b2012-09-06 13:41:12 -0500265 default ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700266
Rob Herring387798b2012-09-06 13:41:12 -0500267config ARCH_MULTIPLATFORM
268 bool "Allow multiple platforms to be selected"
Russell Kingb1b3f492012-10-06 17:12:25 +0100269 depends on MMU
Rob Herring387798b2012-09-06 13:41:12 -0500270 select ARM_PATCH_PHYS_VIRT
271 select AUTO_ZRELADDR
Dinh Nguyen66314222012-07-18 16:07:18 -0600272 select COMMON_CLK
Rob Herring387798b2012-09-06 13:41:12 -0500273 select MULTI_IRQ_HANDLER
Dinh Nguyen66314222012-07-18 16:07:18 -0600274 select SPARSE_IRQ
275 select USE_OF
Dinh Nguyen66314222012-07-18 16:07:18 -0600276
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100277config ARCH_INTEGRATOR
278 bool "ARM Ltd. Integrator family"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100279 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100280 select ARM_AMBA
Linus Walleija6131632012-06-11 17:33:12 +0200281 select COMMON_CLK
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200282 select COMMON_CLK_VERSATILE
Russell Kingb1b3f492012-10-06 17:12:25 +0100283 select GENERIC_CLOCKEVENTS
Linus Walleij9904f792011-12-09 10:29:23 +0100284 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000285 select ICST
Russell Kingb1b3f492012-10-06 17:12:25 +0100286 select MULTI_IRQ_HANDLER
287 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000288 select PLAT_VERSATILE
Russell Kingc41b16f2011-01-19 15:32:15 +0000289 select PLAT_VERSATILE_FPGA_IRQ
Linus Walleij695436e2012-02-26 10:46:48 +0100290 select SPARSE_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100291 help
292 Support for ARM's Integrator platform.
293
294config ARCH_REALVIEW
295 bool "ARM Ltd. RealView family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100296 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100297 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100298 select ARM_TIMER_SP804
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200299 select COMMON_CLK
300 select COMMON_CLK_VERSATILE
Catalin Marinasae30cea2008-02-04 17:26:55 +0100301 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100302 select GPIO_PL061 if GPIOLIB
303 select ICST
304 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000305 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000306 select PLAT_VERSATILE_CLCD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100307 help
308 This enables support for ARM Ltd RealView boards.
309
310config ARCH_VERSATILE
311 bool "ARM Ltd. Versatile family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100312 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100313 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100314 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100315 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100316 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100317 select GENERIC_CLOCKEVENTS
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900318 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000319 select ICST
Russell Kingf4b8b312010-01-14 12:48:06 +0000320 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000321 select PLAT_VERSATILE_CLCD
Russell Kingb1b3f492012-10-06 17:12:25 +0100322 select PLAT_VERSATILE_CLOCK
Russell Kingc41b16f2011-01-19 15:32:15 +0000323 select PLAT_VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100324 help
325 This enables support for ARM Ltd Versatile board.
326
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100327config ARCH_AT91
328 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100329 select ARCH_REQUIRE_GPIOLIB
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100330 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100331 select HAVE_CLK
Nicolas Ferree2615012011-11-22 22:26:09 +0100332 select IRQ_DOMAIN
Rob Herring01464222012-08-28 13:06:41 -0500333 select NEED_MACH_GPIO_H
Rob Herring1ac02d72012-04-04 17:48:04 -0500334 select NEED_MACH_IO_H if PCCARD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100335 help
Nicolas Ferre929e9942012-03-15 12:21:12 +0100336 This enables support for systems based on Atmel
337 AT91RM9200 and AT91SAM9* processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100338
Simon Arlottec9653b2012-05-26 01:04:43 -0600339config ARCH_BCM2835
340 bool "Broadcom BCM2835 family"
341 select ARCH_WANT_OPTIONAL_GPIOLIB
342 select ARM_AMBA
343 select ARM_ERRATA_411920
344 select ARM_TIMER_SP804
345 select CLKDEV_LOOKUP
346 select COMMON_CLK
347 select CPU_V6
348 select GENERIC_CLOCKEVENTS
349 select MULTI_IRQ_HANDLER
350 select SPARSE_IRQ
351 select USE_OF
352 help
353 This enables support for the Broadcom BCM2835 SoC. This SoC is
354 use in the Raspberry Pi, and Roku 2 devices.
355
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300356config ARCH_CNS3XXX
357 bool "Cavium Networks CNS3XXX family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100358 select ARM_GIC
Imre Kaloz00d27112011-07-07 12:19:09 +0200359 select CPU_V6K
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300360 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000361 select MIGHT_HAVE_CACHE_L2X0
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100362 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400363 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300364 help
365 Support for Cavium Networks CNS3XXX platform.
366
Russell King93e22562012-10-12 14:20:52 +0100367config ARCH_CLPS711X
368 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
369 select ARCH_USES_GETTIMEOFFSET
370 select CLKDEV_LOOKUP
371 select COMMON_CLK
372 select CPU_ARM720T
373 select NEED_MACH_MEMORY_H
374 help
375 Support for Cirrus Logic 711x/721x/731x based boards.
376
Russell King788c9702009-04-26 14:21:59 +0100377config ARCH_GEMINI
378 bool "Cortina Systems Gemini"
Russell King788c9702009-04-26 14:21:59 +0100379 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000380 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100381 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100382 help
383 Support for the Cortina Systems Gemini family SoCs
384
Barry Song156a0992012-08-23 13:41:58 +0800385config ARCH_SIRF
386 bool "CSR SiRF"
Arnd Bergmannf6387092012-07-04 14:33:01 +0000387 select ARCH_REQUIRE_GPIOLIB
Binghua Duan198678b2012-08-20 06:42:36 +0000388 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100389 select GENERIC_CLOCKEVENTS
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200390 select GENERIC_IRQ_CHIP
Dave Martince5ea9f2011-11-29 15:56:19 +0000391 select MIGHT_HAVE_CACHE_L2X0
Russell Kingb1b3f492012-10-06 17:12:25 +0100392 select NO_IOPORT
Barry Songcbd8d842012-05-15 10:35:46 +0800393 select PINCTRL
394 select PINCTRL_SIRF
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200395 select USE_OF
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200396 help
Barry Song156a0992012-08-23 13:41:58 +0800397 Support for CSR SiRFprimaII/Marco/Polo platforms
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200398
Linus Torvalds1da177e2005-04-16 15:20:36 -0700399config ARCH_EBSA110
400 bool "EBSA-110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100401 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000402 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100403 select ISA
Rob Herringc334bc12012-03-04 22:03:33 -0600404 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400405 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100406 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700407 help
408 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000409 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700410 Ethernet interface, two PCMCIA sockets, two serial ports and a
411 parallel port.
412
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000413config ARCH_EP93XX
414 bool "EP93xx-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100415 select ARCH_HAS_HOLES_MEMORYMODEL
416 select ARCH_REQUIRE_GPIOLIB
417 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000418 select ARM_AMBA
419 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100420 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100421 select CPU_ARM920T
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100422 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000423 help
424 This enables support for the Cirrus EP93xx series of CPUs.
425
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426config ARCH_FOOTBRIDGE
427 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000428 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700429 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000430 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200431 select HAVE_IDE
Rob Herring8ef6e622012-03-01 20:48:12 -0600432 select NEED_MACH_IO_H if !MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400433 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000434 help
435 Support for systems based on the DC21285 companion chip
436 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700437
Russell King788c9702009-04-26 14:21:59 +0100438config ARCH_MXC
439 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100440 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100441 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100442 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100443 select GENERIC_CLOCKEVENTS
Shawn Guo8b6c44f2011-06-07 13:59:14 +0800444 select GENERIC_IRQ_CHIP
Sascha Hauerffa2ea32011-09-20 14:31:24 +0200445 select MULTI_IRQ_HANDLER
Shawn Guo8842a9e2012-06-14 11:16:14 +0800446 select SPARSE_IRQ
Uwe Kleine-König3e62af82012-07-06 09:47:20 +0200447 select USE_OF
Russell King788c9702009-04-26 14:21:59 +0100448 help
449 Support for Freescale MXC/iMX-based family of processors
450
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800451config ARCH_MXS
452 bool "Freescale MXS-based"
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800453 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100454 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100455 select CLKSRC_MMIO
Shawn Guo26646812012-04-29 00:02:39 +0800456 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100457 select GENERIC_CLOCKEVENTS
Shawn Guo6abda3e2011-12-20 16:12:34 +0800458 select HAVE_CLK_PREPARE
Shawn Guo4e0a1b82012-08-20 10:14:56 +0800459 select MULTI_IRQ_HANDLER
Shawn Guoa0f5e362012-05-06 23:13:13 +0800460 select PINCTRL
Shawn Guoc2668202012-08-20 21:52:12 +0800461 select SPARSE_IRQ
Shawn Guo6c4d4ef2012-05-04 21:42:41 +0800462 select USE_OF
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800463 help
464 Support for Freescale MXS-based family of processors
465
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100466config ARCH_NETX
467 bool "Hilscher NetX based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100468 select ARM_VIC
Russell King234b6ced2011-05-08 14:09:47 +0100469 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000470 select CPU_ARM926T
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100471 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000472 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100473 This enables support for systems based on the Hilscher NetX Soc
474
475config ARCH_H720X
476 bool "Hynix HMS720x-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100477 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000478 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100479 select ISA_DMA_API
480 help
481 This enables support for systems based on the Hynix HMS720x
482
Russell King3b938be2007-05-12 11:25:44 +0100483config ARCH_IOP13XX
484 bool "IOP13xx-based"
485 depends on MMU
Russell King3b938be2007-05-12 11:25:44 +0100486 select ARCH_SUPPORTS_MSI
Russell Kingb1b3f492012-10-06 17:12:25 +0100487 select CPU_XSC3
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400488 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600489 select NEED_RET_TO_USER
Russell Kingb1b3f492012-10-06 17:12:25 +0100490 select PCI
491 select PLAT_IOP
492 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100493 help
494 Support for Intel's IOP13XX (XScale) family of processors.
495
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100496config ARCH_IOP32X
497 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100498 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100499 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000500 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500501 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600502 select NEED_RET_TO_USER
Russell Kingf7e68bb2005-05-05 14:49:01 +0100503 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100504 select PLAT_IOP
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000505 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100506 Support for Intel's 80219 and IOP32X (XScale) family of
507 processors.
508
509config ARCH_IOP33X
510 bool "IOP33x-based"
511 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100512 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000513 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500514 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600515 select NEED_RET_TO_USER
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100516 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100517 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100518 help
519 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700520
Russell King3b938be2007-05-12 11:25:44 +0100521config ARCH_IXP4XX
522 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100523 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500524 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell Kingb1b3f492012-10-06 17:12:25 +0100525 select ARCH_REQUIRE_GPIOLIB
Russell King234b6ced2011-05-08 14:09:47 +0100526 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000527 select CPU_XSCALE
Russell Kingb1b3f492012-10-06 17:12:25 +0100528 select DMABOUNCE if PCI
Russell King3b938be2007-05-12 11:25:44 +0100529 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100530 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600531 select NEED_MACH_IO_H
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100532 help
Russell King3b938be2007-05-12 11:25:44 +0100533 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100534
Saeed Bisharaedabd382009-08-06 15:12:43 +0300535config ARCH_DOVE
536 bool "Marvell Dove"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300537 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100538 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300539 select GENERIC_CLOCKEVENTS
Russell King0f81bd42012-09-09 20:34:13 +0100540 select MIGHT_HAVE_PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200541 select PLAT_ORION_LEGACY
Russell King0f81bd42012-09-09 20:34:13 +0100542 select USB_ARCH_HAS_EHCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300543 help
544 Support for the Marvell Dove SoC 88AP510
545
Saeed Bishara651c74c2008-06-22 22:45:06 +0200546config ARCH_KIRKWOOD
547 bool "Marvell Kirkwood"
Erik Benadaa8865652009-05-28 17:08:55 -0700548 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100549 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200550 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100551 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200552 select PLAT_ORION_LEGACY
Saeed Bishara651c74c2008-06-22 22:45:06 +0200553 help
554 Support for the following Marvell Kirkwood series SoCs:
555 88F6180, 88F6192 and 88F6281.
556
Russell King788c9702009-04-26 14:21:59 +0100557config ARCH_MV78XX0
558 bool "Marvell MV78xx0"
Erik Benadaa8865652009-05-28 17:08:55 -0700559 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100560 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100561 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100562 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200563 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100564 help
565 Support for the following Marvell MV78xx0 series SoCs:
566 MV781x0, MV782x0.
567
568config ARCH_ORION5X
569 bool "Marvell Orion"
570 depends on MMU
Erik Benadaa8865652009-05-28 17:08:55 -0700571 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100572 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100573 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100574 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200575 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100576 help
577 Support for the following Marvell Orion 5x series SoCs:
578 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
579 Orion-2 (5281), Orion-1-90 (6183).
580
581config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500582 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100583 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100584 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100585 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100586 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100587 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800588 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800589 select IRQ_DOMAIN
Russell Kingb1b3f492012-10-06 17:12:25 +0100590 select NEED_MACH_GPIO_H
Russell King788c9702009-04-26 14:21:59 +0100591 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400592 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100593 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500594 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100595
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100596config ARCH_KS8695
597 bool "Micrel/Kendin KS8695"
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100598 select ARCH_REQUIRE_GPIOLIB
Linus Walleijc7e783d2012-08-29 20:27:22 +0200599 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100600 select CPU_ARM922T
Linus Walleijc7e783d2012-08-29 20:27:22 +0200601 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100602 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100603 help
604 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
605 System-on-Chip devices.
606
Russell King788c9702009-04-26 14:21:59 +0100607config ARCH_W90X900
608 bool "Nuvoton W90X900 CPU"
wanzongshunc52d3d62009-06-10 15:49:32 +0100609 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100610 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100611 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100612 select CPU_ARM926T
wanzongshun58b53692009-08-14 15:36:44 +0100613 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200614 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100615 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
616 At present, the w90x900 has been renamed nuc900, regarding
617 the ARM series product line, you can login the following
618 link address to know more.
619
620 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
621 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400622
Russell King93e22562012-10-12 14:20:52 +0100623config ARCH_LPC32XX
624 bool "NXP LPC32XX"
625 select ARCH_REQUIRE_GPIOLIB
626 select ARM_AMBA
Russell King40737232011-01-06 22:32:52 +0000627 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100628 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100629 select CPU_ARM926T
630 select GENERIC_CLOCKEVENTS
631 select HAVE_IDE
632 select HAVE_PWM
633 select USB_ARCH_HAS_OHCI
634 select USE_OF
635 help
636 Support for the NXP LPC32XX family of processors
637
wanzongshuna62e9032009-12-31 15:06:05 +0100638config ARCH_TEGRA
639 bool "NVIDIA Tegra"
Russell Kingb1b3f492012-10-06 17:12:25 +0100640 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800641 select CLKDEV_LOOKUP
642 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100643 select COMMON_CLK
Erik Gillingc5f80062010-01-21 16:53:02 -0800644 select GENERIC_CLOCKEVENTS
645 select GENERIC_GPIO
646 select HAVE_CLK
Dave Martin3b556582011-12-07 15:38:04 +0000647 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000648 select MIGHT_HAVE_CACHE_L2X0
Stephen Warren2c95b7e2012-05-21 15:07:19 -0600649 select USE_OF
Erik Gillingc5f80062010-01-21 16:53:02 -0800650 help
651 This enables support for NVIDIA Tegra based systems (Tegra APX,
652 Tegra 6xx and Tegra 2 series).
653
Linus Torvalds1da177e2005-04-16 15:20:36 -0700654config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700655 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100656 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100657 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100658 select ARCH_MTD_XIP
659 select ARCH_REQUIRE_GPIOLIB
660 select ARM_CPU_SUSPEND if PM
661 select AUTO_ZRELADDR
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100662 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100663 select CLKSRC_MMIO
Eric Miao981d0f32007-07-24 01:22:43 +0100664 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800665 select GPIO_PXA
Russell Kingb1b3f492012-10-06 17:12:25 +0100666 select HAVE_IDE
667 select MULTI_IRQ_HANDLER
668 select NEED_MACH_GPIO_H
Eric Miaobd5ce432009-01-20 12:06:01 +0800669 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800670 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000671 help
eric miao2c8086a2007-09-11 19:13:17 -0700672 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700673
Russell King788c9702009-04-26 14:21:59 +0100674config ARCH_MSM
675 bool "Qualcomm MSM"
Pavel Machek923a0812010-06-02 11:11:12 -0700676 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800677 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100678 select GENERIC_CLOCKEVENTS
679 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800680 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800681 Support for Qualcomm MSM/QSD based systems. This runs on the
682 apps processor of the MSM/QSD and depends on a shared memory
683 interface to the modem processor which runs the baseband
684 stack and controls some vital subsystems
685 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800686
Magnus Dammc793c1b2010-02-05 11:14:49 +0000687config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900688 bool "Renesas SH-Mobile / R-Mobile"
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900689 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100690 select GENERIC_CLOCKEVENTS
691 select HAVE_CLK
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900692 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000693 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000694 select MIGHT_HAVE_CACHE_L2X0
Magnus Damm60f14352010-12-28 08:26:52 +0000695 select MULTI_IRQ_HANDLER
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400696 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100697 select NO_IOPORT
698 select PM_GENERIC_DOMAINS if PM
699 select SPARSE_IRQ
Magnus Dammc793c1b2010-02-05 11:14:49 +0000700 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900701 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000702
Linus Torvalds1da177e2005-04-16 15:20:36 -0700703config ARCH_RPC
704 bool "RiscPC"
705 select ARCH_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100706 select ARCH_MAY_HAVE_PC_FDC
Russell King07f841b2008-10-01 17:11:06 +0100707 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000708 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100709 select FIQ
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200710 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100711 select HAVE_PATA_PLATFORM
712 select ISA_DMA_API
Rob Herringc334bc12012-03-04 22:03:33 -0600713 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400714 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100715 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700716 help
717 On the Acorn Risc-PC, Linux can support the internal IDE disk and
718 CD-ROM interface, serial and parallel port, and the floppy drive.
719
720config ARCH_SA1100
721 bool "SA1100-based"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100722 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100723 select ARCH_MTD_XIP
Michael Buesch7444a722008-07-25 01:46:11 -0700724 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100725 select ARCH_SPARSEMEM_ENABLE
726 select CLKDEV_LOOKUP
727 select CLKSRC_MMIO
728 select CPU_FREQ
729 select CPU_SA1100
730 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200731 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100732 select ISA
Rob Herring01464222012-08-28 13:06:41 -0500733 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400734 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100735 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000736 help
737 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700738
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900739config ARCH_S3C24XX
740 bool "Samsung S3C24XX SoCs"
Ben Dooks9d56c022009-07-30 23:23:25 +0100741 select ARCH_HAS_CPUFREQ
John Stultz5cfc8ee2010-03-24 00:22:36 +0000742 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100743 select CLKDEV_LOOKUP
744 select GENERIC_GPIO
745 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900746 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900747 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100748 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500749 select NEED_MACH_GPIO_H
Rob Herringc334bc12012-03-04 22:03:33 -0600750 select NEED_MACH_IO_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700751 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900752 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
753 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
754 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
755 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900756
Ben Dooksa08ab632008-10-21 14:06:39 +0100757config ARCH_S3C64XX
758 bool "Samsung S3C64XX"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100759 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900760 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100761 select ARCH_USES_GETTIMEOFFSET
762 select ARM_VIC
763 select CLKDEV_LOOKUP
764 select CPU_V6
765 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900766 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900767 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100768 select HAVE_TCM
Rob Herring01464222012-08-28 13:06:41 -0500769 select NEED_MACH_GPIO_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100770 select NO_IOPORT
771 select PLAT_SAMSUNG
772 select S3C_DEV_NAND
773 select S3C_GPIO_TRACK
774 select SAMSUNG_CLKSRC
775 select SAMSUNG_GPIOLIB_4BIT
776 select SAMSUNG_IRQ_VIC_TIMER
777 select USB_ARCH_HAS_OHCI
Ben Dooksa08ab632008-10-21 14:06:39 +0100778 help
779 Samsung S3C64XX series based systems
780
Kukjin Kim49b7a492010-09-07 15:47:18 +0900781config ARCH_S5P64X0
782 bool "Samsung S5P6440 S5P6450"
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900783 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900784 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100785 select CPU_V6
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900786 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100787 select GENERIC_GPIO
788 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900789 select HAVE_S3C2410_I2C if I2C
Russell Kingb1b3f492012-10-06 17:12:25 +0100790 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim754961a2010-11-13 16:11:46 +0900791 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500792 select NEED_MACH_GPIO_H
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900793 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900794 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
795 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900796
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200797config ARCH_S5PC100
798 bool "Samsung S5PC100"
Russell Kingb1b3f492012-10-06 17:12:25 +0100799 select ARCH_USES_GETTIMEOFFSET
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900800 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900801 select CPU_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100802 select GENERIC_GPIO
803 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900804 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900805 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100806 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500807 select NEED_MACH_GPIO_H
Byungho Min5a7652f2009-06-23 21:39:42 +0900808 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200809 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900810
Kukjin Kim170f4e42010-02-24 16:40:44 +0900811config ARCH_S5PV210
812 bool "Samsung S5PV210/S5PC110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100813 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900814 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100815 select ARCH_SPARSEMEM_ENABLE
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900816 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900817 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100818 select CPU_V7
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900819 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100820 select GENERIC_GPIO
821 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900822 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900823 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100824 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500825 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400826 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900827 help
828 Samsung S5PV210/S5PC110 series based systems
829
Kukjin Kim83014572011-11-06 13:54:56 +0900830config ARCH_EXYNOS
Russell King93e22562012-10-12 14:20:52 +0100831 bool "Samsung EXYNOS"
Russell Kingb1b3f492012-10-06 17:12:25 +0100832 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900833 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100834 select ARCH_SPARSEMEM_ENABLE
835 select CLKDEV_LOOKUP
836 select CPU_V7
837 select GENERIC_CLOCKEVENTS
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900838 select GENERIC_GPIO
839 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900840 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900841 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100842 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500843 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400844 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900845 help
Kukjin Kim83014572011-11-06 13:54:56 +0900846 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900847
Linus Torvalds1da177e2005-04-16 15:20:36 -0700848config ARCH_SHARK
849 bool "Shark"
Russell Kingb1b3f492012-10-06 17:12:25 +0100850 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000851 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100852 select ISA
853 select ISA_DMA
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400854 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100855 select PCI
856 select ZONE_DMA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000857 help
858 Support for the StrongARM based Digital DNARD machine, also known
859 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700860
Linus Walleijd98aac72009-04-27 10:21:46 +0100861config ARCH_U300
862 bool "ST-Ericsson U300 Series"
863 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100864 select ARCH_REQUIRE_GPIOLIB
Linus Walleijd98aac72009-04-27 10:21:46 +0100865 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200866 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100867 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100868 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100869 select CLKSRC_MMIO
Linus Walleij50667d62012-06-19 23:44:25 +0200870 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100871 select CPU_ARM926T
872 select GENERIC_CLOCKEVENTS
Linus Walleijd98aac72009-04-27 10:21:46 +0100873 select GENERIC_GPIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100874 select HAVE_TCM
Linus Walleija4fe2922012-08-13 13:49:45 +0200875 select SPARSE_IRQ
Linus Walleijd98aac72009-04-27 10:21:46 +0100876 help
877 Support for ST-Ericsson U300 series mobile platforms.
878
Russell Kingccf50e22010-03-15 19:03:06 +0000879config ARCH_U8500
880 bool "ST-Ericsson U8500 Series"
Arnd Bergmann67ae14f2012-02-25 12:48:49 -0700881 depends on MMU
Martin Persson7c1a70e2010-12-08 15:13:42 +0100882 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100883 select ARCH_REQUIRE_GPIOLIB
884 select ARM_AMBA
885 select CLKDEV_LOOKUP
886 select CPU_V7
887 select GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +0000888 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000889 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000890 help
891 Support for ST-Ericsson's Ux500 architecture
892
893config ARCH_NOMADIK
894 bool "STMicroelectronics Nomadik"
Russell Kingb1b3f492012-10-06 17:12:25 +0100895 select ARCH_REQUIRE_GPIOLIB
Russell Kingccf50e22010-03-15 19:03:06 +0000896 select ARM_AMBA
897 select ARM_VIC
Linus Walleij4a31bd22012-01-11 13:52:34 +0100898 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100899 select CPU_ARM926T
Russell Kingccf50e22010-03-15 19:03:06 +0000900 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100901 select MIGHT_HAVE_CACHE_L2X0
Arnd Bergmann0fa7be42012-05-15 11:24:34 +0000902 select PINCTRL
Linus Walleij2601ccf2012-08-10 00:43:40 +0200903 select PINCTRL_STN8815
Russell Kingccf50e22010-03-15 19:03:06 +0000904 help
905 Support for the Nomadik platform by ST-Ericsson
906
Russell King93e22562012-10-12 14:20:52 +0100907config PLAT_SPEAR
908 bool "ST SPEAr"
909 select ARCH_REQUIRE_GPIOLIB
910 select ARM_AMBA
911 select CLKDEV_LOOKUP
912 select CLKSRC_MMIO
913 select COMMON_CLK
914 select GENERIC_CLOCKEVENTS
915 select HAVE_CLK
916 help
917 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
918
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100919config ARCH_DAVINCI
920 bool "TI DaVinci"
Russell Kingb1b3f492012-10-06 17:12:25 +0100921 select ARCH_HAS_HOLES_MEMORYMODEL
David Brownelldce11152008-09-07 23:41:04 -0700922 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100923 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700924 select GENERIC_ALLOCATOR
Russell Kingb1b3f492012-10-06 17:12:25 +0100925 select GENERIC_CLOCKEVENTS
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100926 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100927 select HAVE_IDE
Rob Herring01464222012-08-28 13:06:41 -0500928 select NEED_MACH_GPIO_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100929 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100930 help
931 Support for TI's DaVinci platform.
932
Russell King3b938be2007-05-12 11:25:44 +0100933config ARCH_OMAP
934 bool "TI OMAP"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600935 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100936 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100937 select ARCH_HAS_HOLES_MEMORYMODEL
938 select ARCH_REQUIRE_GPIOLIB
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700939 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700940 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100941 select HAVE_CLK
Rob Herring01464222012-08-28 13:06:41 -0500942 select NEED_MACH_GPIO_H
Russell King3b938be2007-05-12 11:25:44 +0100943 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200944 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100945
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100946config ARCH_VT8500
947 bool "VIA/WonderMedia 85xx"
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100948 select ARCH_HAS_CPUFREQ
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100949 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200950 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100951 select COMMON_CLK
952 select CPU_ARM926T
953 select GENERIC_CLOCKEVENTS
954 select GENERIC_GPIO
955 select HAVE_CLK
956 select USE_OF
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100957 help
958 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +0800959
John Linnb85a3ef2011-06-20 11:47:27 -0600960config ARCH_ZYNQ
961 bool "Xilinx Zynq ARM Cortex A9 Platform"
Russell Kingb1b3f492012-10-06 17:12:25 +0100962 select ARM_AMBA
963 select ARM_GIC
964 select CLKDEV_LOOKUP
Binghua Duan02c981c2011-07-08 17:40:12 +0800965 select CPU_V7
Binghua Duan02c981c2011-07-08 17:40:12 +0800966 select GENERIC_CLOCKEVENTS
John Linnb85a3ef2011-06-20 11:47:27 -0600967 select ICST
Dave Martince5ea9f2011-11-29 15:56:19 +0000968 select MIGHT_HAVE_CACHE_L2X0
Binghua Duan02c981c2011-07-08 17:40:12 +0800969 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +0800970 help
John Linnb85a3ef2011-06-20 11:47:27 -0600971 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -0700972endchoice
973
Rob Herring387798b2012-09-06 13:41:12 -0500974menu "Multiple platform selection"
975 depends on ARCH_MULTIPLATFORM
976
977comment "CPU Core family selection"
978
979config ARCH_MULTI_V4
980 bool "ARMv4 based platforms (FA526, StrongARM)"
Rob Herring387798b2012-09-06 13:41:12 -0500981 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100982 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500983
984config ARCH_MULTI_V4T
985 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500986 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100987 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500988
989config ARCH_MULTI_V5
990 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500991 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100992 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500993
994config ARCH_MULTI_V4_V5
995 bool
996
997config ARCH_MULTI_V6
998 bool "ARMv6 based platforms (ARM11, Scorpion, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500999 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +01001000 select CPU_V6
Rob Herring387798b2012-09-06 13:41:12 -05001001
1002config ARCH_MULTI_V7
1003 bool "ARMv7 based platforms (Cortex-A, PJ4, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -05001004 default y
1005 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +01001006 select ARCH_VEXPRESS
1007 select CPU_V7
Rob Herring387798b2012-09-06 13:41:12 -05001008
1009config ARCH_MULTI_V6_V7
1010 bool
1011
1012config ARCH_MULTI_CPU_AUTO
1013 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
1014 select ARCH_MULTI_V5
1015
1016endmenu
1017
Russell Kingccf50e22010-03-15 19:03:06 +00001018#
1019# This is sorted alphabetically by mach-* pathname. However, plat-*
1020# Kconfigs may be included either alphabetically (according to the
1021# plat- suffix) or along side the corresponding mach-* source.
1022#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +02001023source "arch/arm/mach-mvebu/Kconfig"
1024
Russell King95b8f202010-01-14 11:43:54 +00001025source "arch/arm/mach-at91/Kconfig"
1026
Linus Torvalds1da177e2005-04-16 15:20:36 -07001027source "arch/arm/mach-clps711x/Kconfig"
1028
Anton Vorontsovd94f9442010-03-25 17:12:41 +03001029source "arch/arm/mach-cns3xxx/Kconfig"
1030
Russell King95b8f202010-01-14 11:43:54 +00001031source "arch/arm/mach-davinci/Kconfig"
1032
1033source "arch/arm/mach-dove/Kconfig"
1034
Lennert Buytenheke7736d42006-03-20 17:10:13 +00001035source "arch/arm/mach-ep93xx/Kconfig"
1036
Linus Torvalds1da177e2005-04-16 15:20:36 -07001037source "arch/arm/mach-footbridge/Kconfig"
1038
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001039source "arch/arm/mach-gemini/Kconfig"
1040
Russell King95b8f202010-01-14 11:43:54 +00001041source "arch/arm/mach-h720x/Kconfig"
1042
Rob Herring387798b2012-09-06 13:41:12 -05001043source "arch/arm/mach-highbank/Kconfig"
1044
Linus Torvalds1da177e2005-04-16 15:20:36 -07001045source "arch/arm/mach-integrator/Kconfig"
1046
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001047source "arch/arm/mach-iop32x/Kconfig"
1048
1049source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001050
Dan Williams285f5fa2006-12-07 02:59:39 +01001051source "arch/arm/mach-iop13xx/Kconfig"
1052
Linus Torvalds1da177e2005-04-16 15:20:36 -07001053source "arch/arm/mach-ixp4xx/Kconfig"
1054
Russell King95b8f202010-01-14 11:43:54 +00001055source "arch/arm/mach-kirkwood/Kconfig"
1056
1057source "arch/arm/mach-ks8695/Kconfig"
1058
Russell King95b8f202010-01-14 11:43:54 +00001059source "arch/arm/mach-msm/Kconfig"
1060
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001061source "arch/arm/mach-mv78xx0/Kconfig"
1062
Russell King95b8f202010-01-14 11:43:54 +00001063source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001064
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001065source "arch/arm/mach-mxs/Kconfig"
1066
Russell King95b8f202010-01-14 11:43:54 +00001067source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001068
Russell King95b8f202010-01-14 11:43:54 +00001069source "arch/arm/mach-nomadik/Kconfig"
1070source "arch/arm/plat-nomadik/Kconfig"
1071
Tony Lindgrend48af152005-07-10 19:58:17 +01001072source "arch/arm/plat-omap/Kconfig"
1073
1074source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001075
Tony Lindgren1dbae812005-11-10 14:26:51 +00001076source "arch/arm/mach-omap2/Kconfig"
1077
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001078source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001079
Rob Herring387798b2012-09-06 13:41:12 -05001080source "arch/arm/mach-picoxcell/Kconfig"
1081
Russell King95b8f202010-01-14 11:43:54 +00001082source "arch/arm/mach-pxa/Kconfig"
1083source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001084
Russell King95b8f202010-01-14 11:43:54 +00001085source "arch/arm/mach-mmp/Kconfig"
1086
1087source "arch/arm/mach-realview/Kconfig"
1088
1089source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001090
Ben Dookscf383672009-11-10 00:14:58 +00001091source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001092source "arch/arm/plat-s3c24xx/Kconfig"
1093
Rob Herring387798b2012-09-06 13:41:12 -05001094source "arch/arm/mach-socfpga/Kconfig"
1095
viresh kumarcee37e52010-04-01 12:31:05 +01001096source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001097
Kukjin Kim85fd6d62012-02-06 09:38:19 +09001098source "arch/arm/mach-s3c24xx/Kconfig"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001099if ARCH_S3C24XX
Ben Dooksa21765a2007-02-11 18:31:01 +01001100source "arch/arm/mach-s3c2412/Kconfig"
1101source "arch/arm/mach-s3c2440/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001102endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001103
Ben Dooksa08ab632008-10-21 14:06:39 +01001104if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001105source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001106endif
1107
Kukjin Kim49b7a492010-09-07 15:47:18 +09001108source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001109
Byungho Min5a7652f2009-06-23 21:39:42 +09001110source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001111
Kukjin Kim170f4e42010-02-24 16:40:44 +09001112source "arch/arm/mach-s5pv210/Kconfig"
1113
Kukjin Kim83014572011-11-06 13:54:56 +09001114source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001115
Russell King882d01f2010-03-02 23:40:15 +00001116source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001117
Barry Song156a0992012-08-23 13:41:58 +08001118source "arch/arm/mach-prima2/Kconfig"
1119
Erik Gillingc5f80062010-01-21 16:53:02 -08001120source "arch/arm/mach-tegra/Kconfig"
1121
Russell King95b8f202010-01-14 11:43:54 +00001122source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001123
Russell King95b8f202010-01-14 11:43:54 +00001124source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001125
1126source "arch/arm/mach-versatile/Kconfig"
1127
Russell Kingceade892010-02-11 21:44:53 +00001128source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001129source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001130
wanzongshun7ec80dd2008-12-03 03:55:38 +01001131source "arch/arm/mach-w90x900/Kconfig"
1132
Linus Torvalds1da177e2005-04-16 15:20:36 -07001133# Definitions to make life easier
1134config ARCH_ACORN
1135 bool
1136
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001137config PLAT_IOP
1138 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001139 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001140
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001141config PLAT_ORION
1142 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001143 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +01001144 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001145 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +02001146 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001147
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +02001148config PLAT_ORION_LEGACY
1149 bool
1150 select PLAT_ORION
1151
Eric Miaobd5ce432009-01-20 12:06:01 +08001152config PLAT_PXA
1153 bool
1154
Russell Kingf4b8b312010-01-14 12:48:06 +00001155config PLAT_VERSATILE
1156 bool
1157
Russell Kinge3887712010-01-14 13:30:16 +00001158config ARM_TIMER_SP804
1159 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001160 select CLKSRC_MMIO
Rob Herringa7bf6162011-12-12 15:29:08 -06001161 select HAVE_SCHED_CLOCK
Russell Kinge3887712010-01-14 13:30:16 +00001162
Linus Torvalds1da177e2005-04-16 15:20:36 -07001163source arch/arm/mm/Kconfig
1164
Russell King958cab02011-12-11 10:04:00 +00001165config ARM_NR_BANKS
1166 int
1167 default 16 if ARCH_EP93XX
1168 default 8
1169
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001170config IWMMXT
1171 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001172 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1173 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001174 help
1175 Enable support for iWMMXt context switching at run time if
1176 running on a CPU that supports it.
1177
Linus Torvalds1da177e2005-04-16 15:20:36 -07001178config XSCALE_PMU
1179 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001180 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001181 default y
1182
eric miao52108642010-12-13 09:42:34 +01001183config MULTI_IRQ_HANDLER
1184 bool
1185 help
1186 Allow each machine to specify it's own IRQ handler at run time.
1187
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001188if !MMU
1189source "arch/arm/Kconfig-nommu"
1190endif
1191
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001192config ARM_ERRATA_326103
1193 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1194 depends on CPU_V6
1195 help
1196 Executing a SWP instruction to read-only memory does not set bit 11
1197 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1198 treat the access as a read, preventing a COW from occurring and
1199 causing the faulting task to livelock.
1200
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001201config ARM_ERRATA_411920
1202 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001203 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001204 help
1205 Invalidation of the Instruction Cache operation can
1206 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1207 It does not affect the MPCore. This option enables the ARM Ltd.
1208 recommended workaround.
1209
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001210config ARM_ERRATA_430973
1211 bool "ARM errata: Stale prediction on replaced interworking branch"
1212 depends on CPU_V7
1213 help
1214 This option enables the workaround for the 430973 Cortex-A8
1215 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1216 interworking branch is replaced with another code sequence at the
1217 same virtual address, whether due to self-modifying code or virtual
1218 to physical address re-mapping, Cortex-A8 does not recover from the
1219 stale interworking branch prediction. This results in Cortex-A8
1220 executing the new code sequence in the incorrect ARM or Thumb state.
1221 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1222 and also flushes the branch target cache at every context switch.
1223 Note that setting specific bits in the ACTLR register may not be
1224 available in non-secure mode.
1225
Catalin Marinas855c5512009-04-30 17:06:15 +01001226config ARM_ERRATA_458693
1227 bool "ARM errata: Processor deadlock when a false hazard is created"
1228 depends on CPU_V7
1229 help
1230 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1231 erratum. For very specific sequences of memory operations, it is
1232 possible for a hazard condition intended for a cache line to instead
1233 be incorrectly associated with a different cache line. This false
1234 hazard might then cause a processor deadlock. The workaround enables
1235 the L1 caching of the NEON accesses and disables the PLD instruction
1236 in the ACTLR register. Note that setting specific bits in the ACTLR
1237 register may not be available in non-secure mode.
1238
Catalin Marinas0516e462009-04-30 17:06:20 +01001239config ARM_ERRATA_460075
1240 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1241 depends on CPU_V7
1242 help
1243 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1244 erratum. Any asynchronous access to the L2 cache may encounter a
1245 situation in which recent store transactions to the L2 cache are lost
1246 and overwritten with stale memory contents from external memory. The
1247 workaround disables the write-allocate mode for the L2 cache via the
1248 ACTLR register. Note that setting specific bits in the ACTLR register
1249 may not be available in non-secure mode.
1250
Will Deacon9f050272010-09-14 09:51:43 +01001251config ARM_ERRATA_742230
1252 bool "ARM errata: DMB operation may be faulty"
1253 depends on CPU_V7 && SMP
1254 help
1255 This option enables the workaround for the 742230 Cortex-A9
1256 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1257 between two write operations may not ensure the correct visibility
1258 ordering of the two writes. This workaround sets a specific bit in
1259 the diagnostic register of the Cortex-A9 which causes the DMB
1260 instruction to behave as a DSB, ensuring the correct behaviour of
1261 the two writes.
1262
Will Deacona672e992010-09-14 09:53:02 +01001263config ARM_ERRATA_742231
1264 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1265 depends on CPU_V7 && SMP
1266 help
1267 This option enables the workaround for the 742231 Cortex-A9
1268 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1269 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1270 accessing some data located in the same cache line, may get corrupted
1271 data due to bad handling of the address hazard when the line gets
1272 replaced from one of the CPUs at the same time as another CPU is
1273 accessing it. This workaround sets specific bits in the diagnostic
1274 register of the Cortex-A9 which reduces the linefill issuing
1275 capabilities of the processor.
1276
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001277config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001278 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001279 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001280 help
1281 The PL310 L2 cache controller implements three types of Clean &
1282 Invalidate maintenance operations: by Physical Address
1283 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1284 They are architecturally defined to behave as the execution of a
1285 clean operation followed immediately by an invalidate operation,
1286 both performing to the same memory location. This functionality
1287 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001288 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001289
1290config ARM_ERRATA_720789
1291 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001292 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001293 help
1294 This option enables the workaround for the 720789 Cortex-A9 (prior to
1295 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1296 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1297 As a consequence of this erratum, some TLB entries which should be
1298 invalidated are not, resulting in an incoherency in the system page
1299 tables. The workaround changes the TLB flushing routines to invalidate
1300 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001301
Russell King1f0090a2011-03-16 23:35:25 +00001302config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001303 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001304 depends on CACHE_L2X0
1305 help
1306 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1307 operation (offset 0x7FC). This operation runs in background so that
1308 PL310 can handle normal accesses while it is in progress. Under very
1309 rare circumstances, due to this erratum, write data can be lost when
1310 PL310 treats a cacheable write transaction during a Clean &
1311 Invalidate by Way operation.
1312
Will Deacon475d92f2010-09-28 14:02:02 +01001313config ARM_ERRATA_743622
1314 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1315 depends on CPU_V7
1316 help
1317 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001318 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001319 optimisation in the Cortex-A9 Store Buffer may lead to data
1320 corruption. This workaround sets a specific bit in the diagnostic
1321 register of the Cortex-A9 which disables the Store Buffer
1322 optimisation, preventing the defect from occurring. This has no
1323 visible impact on the overall performance or power consumption of the
1324 processor.
1325
Will Deacon9a27c272011-02-18 16:36:35 +01001326config ARM_ERRATA_751472
1327 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001328 depends on CPU_V7
Will Deacon9a27c272011-02-18 16:36:35 +01001329 help
1330 This option enables the workaround for the 751472 Cortex-A9 (prior
1331 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1332 completion of a following broadcasted operation if the second
1333 operation is received by a CPU before the ICIALLUIS has completed,
1334 potentially leading to corrupted entries in the cache or TLB.
1335
Will Deaconfa0ce402011-11-14 17:24:57 +01001336config PL310_ERRATA_753970
1337 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001338 depends on CACHE_PL310
1339 help
1340 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1341
1342 Under some condition the effect of cache sync operation on
1343 the store buffer still remains when the operation completes.
1344 This means that the store buffer is always asked to drain and
1345 this prevents it from merging any further writes. The workaround
1346 is to replace the normal offset of cache sync operation (0x730)
1347 by another offset targeting an unmapped PL310 register 0x740.
1348 This has the same effect as the cache sync operation: store buffer
1349 drain and waiting for all buffers empty.
1350
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001351config ARM_ERRATA_754322
1352 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1353 depends on CPU_V7
1354 help
1355 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1356 r3p*) erratum. A speculative memory access may cause a page table walk
1357 which starts prior to an ASID switch but completes afterwards. This
1358 can populate the micro-TLB with a stale entry which may be hit with
1359 the new ASID. This workaround places two dsb instructions in the mm
1360 switching code so that no page table walks can cross the ASID switch.
1361
Will Deacon5dab26a2011-03-04 12:38:54 +01001362config ARM_ERRATA_754327
1363 bool "ARM errata: no automatic Store Buffer drain"
1364 depends on CPU_V7 && SMP
1365 help
1366 This option enables the workaround for the 754327 Cortex-A9 (prior to
1367 r2p0) erratum. The Store Buffer does not have any automatic draining
1368 mechanism and therefore a livelock may occur if an external agent
1369 continuously polls a memory location waiting to observe an update.
1370 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1371 written polling loops from denying visibility of updates to memory.
1372
Catalin Marinas145e10e2011-08-15 11:04:41 +01001373config ARM_ERRATA_364296
1374 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1375 depends on CPU_V6 && !SMP
1376 help
1377 This options enables the workaround for the 364296 ARM1136
1378 r0p2 erratum (possible cache data corruption with
1379 hit-under-miss enabled). It sets the undocumented bit 31 in
1380 the auxiliary control register and the FI bit in the control
1381 register, thus disabling hit-under-miss without putting the
1382 processor into full low interrupt latency mode. ARM11MPCore
1383 is not affected.
1384
Will Deaconf630c1b2011-09-15 11:45:15 +01001385config ARM_ERRATA_764369
1386 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1387 depends on CPU_V7 && SMP
1388 help
1389 This option enables the workaround for erratum 764369
1390 affecting Cortex-A9 MPCore with two or more processors (all
1391 current revisions). Under certain timing circumstances, a data
1392 cache line maintenance operation by MVA targeting an Inner
1393 Shareable memory region may fail to proceed up to either the
1394 Point of Coherency or to the Point of Unification of the
1395 system. This workaround adds a DSB instruction before the
1396 relevant cache maintenance functions and sets a specific bit
1397 in the diagnostic control register of the SCU.
1398
Will Deacon11ed0ba2011-11-14 17:24:58 +01001399config PL310_ERRATA_769419
1400 bool "PL310 errata: no automatic Store Buffer drain"
1401 depends on CACHE_L2X0
1402 help
1403 On revisions of the PL310 prior to r3p2, the Store Buffer does
1404 not automatically drain. This can cause normal, non-cacheable
1405 writes to be retained when the memory system is idle, leading
1406 to suboptimal I/O performance for drivers using coherent DMA.
1407 This option adds a write barrier to the cpu_idle loop so that,
1408 on systems with an outer cache, the store buffer is drained
1409 explicitly.
1410
Simon Horman7253b852012-09-28 02:12:45 +01001411config ARM_ERRATA_775420
1412 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1413 depends on CPU_V7
1414 help
1415 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1416 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1417 operation aborts with MMU exception, it might cause the processor
1418 to deadlock. This workaround puts DSB before executing ISB if
1419 an abort may occur on cache maintenance.
1420
Linus Torvalds1da177e2005-04-16 15:20:36 -07001421endmenu
1422
1423source "arch/arm/common/Kconfig"
1424
Linus Torvalds1da177e2005-04-16 15:20:36 -07001425menu "Bus support"
1426
1427config ARM_AMBA
1428 bool
1429
1430config ISA
1431 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001432 help
1433 Find out whether you have ISA slots on your motherboard. ISA is the
1434 name of a bus system, i.e. the way the CPU talks to the other stuff
1435 inside your box. Other bus systems are PCI, EISA, MicroChannel
1436 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1437 newer boards don't support it. If you have ISA, say Y, otherwise N.
1438
Russell King065909b2006-01-04 15:44:16 +00001439# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001440config ISA_DMA
1441 bool
Russell King065909b2006-01-04 15:44:16 +00001442 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001443
Russell King065909b2006-01-04 15:44:16 +00001444# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001445config ISA_DMA_API
1446 bool
Al Viro5cae8412005-05-04 05:39:22 +01001447
Linus Torvalds1da177e2005-04-16 15:20:36 -07001448config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001449 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001450 help
1451 Find out whether you have a PCI motherboard. PCI is the name of a
1452 bus system, i.e. the way the CPU talks to the other stuff inside
1453 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1454 VESA. If you have PCI, say Y, otherwise N.
1455
Anton Vorontsov52882172010-04-19 13:20:49 +01001456config PCI_DOMAINS
1457 bool
1458 depends on PCI
1459
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001460config PCI_NANOENGINE
1461 bool "BSE nanoEngine PCI support"
1462 depends on SA1100_NANOENGINE
1463 help
1464 Enable PCI on the BSE nanoEngine board.
1465
Matthew Wilcox36e23592007-07-10 10:54:40 -06001466config PCI_SYSCALL
1467 def_bool PCI
1468
Linus Torvalds1da177e2005-04-16 15:20:36 -07001469# Select the host bridge type
1470config PCI_HOST_VIA82C505
1471 bool
1472 depends on PCI && ARCH_SHARK
1473 default y
1474
Mike Rapoporta0113a92007-11-25 08:55:34 +01001475config PCI_HOST_ITE8152
1476 bool
1477 depends on PCI && MACH_ARMCORE
1478 default y
1479 select DMABOUNCE
1480
Linus Torvalds1da177e2005-04-16 15:20:36 -07001481source "drivers/pci/Kconfig"
1482
1483source "drivers/pcmcia/Kconfig"
1484
1485endmenu
1486
1487menu "Kernel Features"
1488
Dave Martin3b556582011-12-07 15:38:04 +00001489config HAVE_SMP
1490 bool
1491 help
1492 This option should be selected by machines which have an SMP-
1493 capable CPU.
1494
1495 The only effect of this option is to make the SMP-related
1496 options available to the user for configuration.
1497
Linus Torvalds1da177e2005-04-16 15:20:36 -07001498config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001499 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001500 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001501 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001502 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001503 depends on MMU
Daniel Walker89c3ded2010-11-22 12:35:41 -08001504 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Russell Kingb1b3f492012-10-06 17:12:25 +01001505 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001506 help
1507 This enables support for systems with more than one CPU. If you have
1508 a system with only one CPU, like most personal computers, say N. If
1509 you have a system with more than one CPU, say Y.
1510
1511 If you say N here, the kernel will run on single and multiprocessor
1512 machines, but will use only one CPU of a multiprocessor machine. If
1513 you say Y here, the kernel will run on many, but not all, single
1514 processor machines. On a single processor machine, the kernel will
1515 run faster if you say N here.
1516
Paul Bolle395cf962011-08-15 02:02:26 +02001517 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001518 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001519 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001520
1521 If you don't know what to do here, say N.
1522
Russell Kingf00ec482010-09-04 10:47:48 +01001523config SMP_ON_UP
1524 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1525 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001526 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001527 default y
1528 help
1529 SMP kernels contain instructions which fail on non-SMP processors.
1530 Enabling this option allows the kernel to modify itself to make
1531 these instructions safe. Disabling it allows about 1K of space
1532 savings.
1533
1534 If you don't know what to do here, say Y.
1535
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001536config ARM_CPU_TOPOLOGY
1537 bool "Support cpu topology definition"
1538 depends on SMP && CPU_V7
1539 default y
1540 help
1541 Support ARM cpu topology definition. The MPIDR register defines
1542 affinity between processors which is then used to describe the cpu
1543 topology of an ARM System.
1544
1545config SCHED_MC
1546 bool "Multi-core scheduler support"
1547 depends on ARM_CPU_TOPOLOGY
1548 help
1549 Multi-core scheduler support improves the CPU scheduler's decision
1550 making when dealing with multi-core CPU chips at a cost of slightly
1551 increased overhead in some places. If unsure say N here.
1552
1553config SCHED_SMT
1554 bool "SMT scheduler support"
1555 depends on ARM_CPU_TOPOLOGY
1556 help
1557 Improves the CPU scheduler's decision making when dealing with
1558 MultiThreading at a cost of slightly increased overhead in some
1559 places. If unsure say N here.
1560
Russell Kinga8cbcd92009-05-16 11:51:14 +01001561config HAVE_ARM_SCU
1562 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001563 help
1564 This option enables support for the ARM system coherency unit
1565
Marc Zyngier022c03a2012-01-11 17:25:17 +00001566config ARM_ARCH_TIMER
1567 bool "Architected timer support"
1568 depends on CPU_V7
1569 help
1570 This option enables support for the ARM architected timer
1571
Russell Kingf32f4ce2009-05-16 12:14:21 +01001572config HAVE_ARM_TWD
1573 bool
1574 depends on SMP
1575 help
1576 This options enables support for the ARM timer and watchdog unit
1577
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001578choice
1579 prompt "Memory split"
1580 default VMSPLIT_3G
1581 help
1582 Select the desired split between kernel and user memory.
1583
1584 If you are not absolutely sure what you are doing, leave this
1585 option alone!
1586
1587 config VMSPLIT_3G
1588 bool "3G/1G user/kernel split"
1589 config VMSPLIT_2G
1590 bool "2G/2G user/kernel split"
1591 config VMSPLIT_1G
1592 bool "1G/3G user/kernel split"
1593endchoice
1594
1595config PAGE_OFFSET
1596 hex
1597 default 0x40000000 if VMSPLIT_1G
1598 default 0x80000000 if VMSPLIT_2G
1599 default 0xC0000000
1600
Linus Torvalds1da177e2005-04-16 15:20:36 -07001601config NR_CPUS
1602 int "Maximum number of CPUs (2-32)"
1603 range 2 32
1604 depends on SMP
1605 default "4"
1606
Russell Kinga054a812005-11-02 22:24:33 +00001607config HOTPLUG_CPU
1608 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1609 depends on SMP && HOTPLUG && EXPERIMENTAL
1610 help
1611 Say Y here to experiment with turning CPUs off and on. CPUs
1612 can be controlled through /sys/devices/system/cpu.
1613
Russell King37ee16a2005-11-08 19:08:05 +00001614config LOCAL_TIMERS
1615 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001616 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001617 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001618 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001619 help
1620 Enable support for local timers on SMP platforms, rather then the
1621 legacy IPI broadcast method. Local timers allows the system
1622 accounting to be spread across the timer interval, preventing a
1623 "thundering herd" at every timer tick.
1624
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001625config ARCH_NR_GPIO
1626 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001627 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Philippe Langlais70227a42012-02-13 10:51:22 +01001628 default 355 if ARCH_U8500
Paul Parsons9a01ec32012-02-27 01:58:45 +00001629 default 264 if MACH_H4700
Tarun Kanti DebBarma39f47d92012-04-26 18:31:17 +05301630 default 512 if SOC_OMAP5
Tony Priske9a91de2012-08-03 21:00:06 +12001631 default 288 if ARCH_VT8500
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001632 default 0
1633 help
1634 Maximum number of GPIOs in the system.
1635
1636 If unsure, leave the default value.
1637
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001638source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001639
Russell Kingf8065812006-03-02 22:41:59 +00001640config HZ
1641 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001642 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001643 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001644 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001645 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001646 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001647 default 100
1648
Catalin Marinas16c79652009-07-24 12:33:02 +01001649config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001650 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001651 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001652 select AEABI
1653 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001654 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001655 help
1656 By enabling this option, the kernel will be compiled in
1657 Thumb-2 mode. A compiler/assembler that understand the unified
1658 ARM-Thumb syntax is needed.
1659
1660 If unsure, say N.
1661
Dave Martin6f685c52011-03-03 11:41:12 +01001662config THUMB2_AVOID_R_ARM_THM_JUMP11
1663 bool "Work around buggy Thumb-2 short branch relocations in gas"
1664 depends on THUMB2_KERNEL && MODULES
1665 default y
1666 help
1667 Various binutils versions can resolve Thumb-2 branches to
1668 locally-defined, preemptible global symbols as short-range "b.n"
1669 branch instructions.
1670
1671 This is a problem, because there's no guarantee the final
1672 destination of the symbol, or any candidate locations for a
1673 trampoline, are within range of the branch. For this reason, the
1674 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1675 relocation in modules at all, and it makes little sense to add
1676 support.
1677
1678 The symptom is that the kernel fails with an "unsupported
1679 relocation" error when loading some modules.
1680
1681 Until fixed tools are available, passing
1682 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1683 code which hits this problem, at the cost of a bit of extra runtime
1684 stack usage in some cases.
1685
1686 The problem is described in more detail at:
1687 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1688
1689 Only Thumb-2 kernels are affected.
1690
1691 Unless you are sure your tools don't have this problem, say Y.
1692
Catalin Marinas0becb082009-07-24 12:32:53 +01001693config ARM_ASM_UNIFIED
1694 bool
1695
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001696config AEABI
1697 bool "Use the ARM EABI to compile the kernel"
1698 help
1699 This option allows for the kernel to be compiled using the latest
1700 ARM ABI (aka EABI). This is only useful if you are using a user
1701 space environment that is also compiled with EABI.
1702
1703 Since there are major incompatibilities between the legacy ABI and
1704 EABI, especially with regard to structure member alignment, this
1705 option also changes the kernel syscall calling convention to
1706 disambiguate both ABIs and allow for backward compatibility support
1707 (selected with CONFIG_OABI_COMPAT).
1708
1709 To use this you need GCC version 4.0.0 or later.
1710
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001711config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001712 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001713 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001714 default y
1715 help
1716 This option preserves the old syscall interface along with the
1717 new (ARM EABI) one. It also provides a compatibility layer to
1718 intercept syscalls that have structure arguments which layout
1719 in memory differs between the legacy ABI and the new ARM EABI
1720 (only for non "thumb" binaries). This option adds a tiny
1721 overhead to all syscalls and produces a slightly larger kernel.
1722 If you know you'll be using only pure EABI user space then you
1723 can say N here. If this option is not selected and you attempt
1724 to execute a legacy ABI binary then the result will be
1725 UNPREDICTABLE (in fact it can be predicted that it won't work
1726 at all). If in doubt say Y.
1727
Mel Gormaneb335752009-05-13 17:34:48 +01001728config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001729 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001730
Russell King05944d72006-11-30 20:43:51 +00001731config ARCH_SPARSEMEM_ENABLE
1732 bool
1733
Russell King07a2f732008-10-01 21:39:58 +01001734config ARCH_SPARSEMEM_DEFAULT
1735 def_bool ARCH_SPARSEMEM_ENABLE
1736
Russell King05944d72006-11-30 20:43:51 +00001737config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001738 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001739
Will Deacon7b7bf492011-05-19 13:21:14 +01001740config HAVE_ARCH_PFN_VALID
1741 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1742
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001743config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001744 bool "High Memory Support"
1745 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001746 help
1747 The address space of ARM processors is only 4 Gigabytes large
1748 and it has to accommodate user address space, kernel address
1749 space as well as some memory mapped IO. That means that, if you
1750 have a large amount of physical memory and/or IO, not all of the
1751 memory can be "permanently mapped" by the kernel. The physical
1752 memory that is not permanently mapped is called "high memory".
1753
1754 Depending on the selected kernel/user memory split, minimum
1755 vmalloc space and actual amount of RAM, you may not need this
1756 option which should result in a slightly faster kernel.
1757
1758 If unsure, say n.
1759
Russell King65cec8e2009-08-17 20:02:06 +01001760config HIGHPTE
1761 bool "Allocate 2nd-level pagetables from highmem"
1762 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001763
Jamie Iles1b8873a2010-02-02 20:25:44 +01001764config HW_PERF_EVENTS
1765 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001766 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001767 default y
1768 help
1769 Enable hardware performance counter support for perf events. If
1770 disabled, perf events will use software events only.
1771
Dave Hansen3f22ab22005-06-23 00:07:43 -07001772source "mm/Kconfig"
1773
Magnus Dammc1b2d972010-07-05 10:00:11 +01001774config FORCE_MAX_ZONEORDER
1775 int "Maximum zone order" if ARCH_SHMOBILE
1776 range 11 64 if ARCH_SHMOBILE
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001777 default "12" if SOC_AM33XX
Magnus Dammc1b2d972010-07-05 10:00:11 +01001778 default "9" if SA1111
1779 default "11"
1780 help
1781 The kernel memory allocator divides physically contiguous memory
1782 blocks into "zones", where each zone is a power of two number of
1783 pages. This option selects the largest power of two that the kernel
1784 keeps in the memory allocator. If you need to allocate very large
1785 blocks of physically contiguous memory, then you may need to
1786 increase this value.
1787
1788 This config option is actually maximum order plus one. For example,
1789 a value of 11 means that the largest free memory block is 2^10 pages.
1790
Linus Torvalds1da177e2005-04-16 15:20:36 -07001791config ALIGNMENT_TRAP
1792 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001793 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001794 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001795 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001796 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001797 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001798 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1799 address divisible by 4. On 32-bit ARM processors, these non-aligned
1800 fetch/store instructions will be emulated in software if you say
1801 here, which has a severe performance impact. This is necessary for
1802 correct operation of some network protocols. With an IP-only
1803 configuration it is safe to say N, otherwise say Y.
1804
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001805config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001806 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1807 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001808 default y if CPU_FEROCEON
1809 help
1810 Implement faster copy_to_user and clear_user methods for CPU
1811 cores where a 8-word STM instruction give significantly higher
1812 memory write throughput than a sequence of individual 32bit stores.
1813
1814 A possible side effect is a slight increase in scheduling latency
1815 between threads sharing the same address space if they invoke
1816 such copy operations with large buffers.
1817
1818 However, if the CPU data cache is using a write-allocate mode,
1819 this option is unlikely to provide any performance gain.
1820
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001821config SECCOMP
1822 bool
1823 prompt "Enable seccomp to safely compute untrusted bytecode"
1824 ---help---
1825 This kernel feature is useful for number crunching applications
1826 that may need to compute untrusted bytecode during their
1827 execution. By using pipes or other transports made available to
1828 the process as file descriptors supporting the read/write
1829 syscalls, it's possible to isolate those applications in
1830 their own address space using seccomp. Once seccomp is
1831 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1832 and the task is only allowed to execute a few safe syscalls
1833 defined by each seccomp mode.
1834
Nicolas Pitrec743f382010-05-24 23:55:42 -04001835config CC_STACKPROTECTOR
1836 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001837 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001838 help
1839 This option turns on the -fstack-protector GCC feature. This
1840 feature puts, at the beginning of functions, a canary value on
1841 the stack just before the return address, and validates
1842 the value just before actually returning. Stack based buffer
1843 overflows (that need to overwrite this return address) now also
1844 overwrite the canary, which gets detected and the attack is then
1845 neutralized via a kernel panic.
1846 This feature requires gcc version 4.2 or above.
1847
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001848config XEN_DOM0
1849 def_bool y
1850 depends on XEN
1851
1852config XEN
1853 bool "Xen guest support on ARM (EXPERIMENTAL)"
1854 depends on EXPERIMENTAL && ARM && OF
1855 help
1856 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1857
Linus Torvalds1da177e2005-04-16 15:20:36 -07001858endmenu
1859
1860menu "Boot options"
1861
Grant Likely9eb8f672011-04-28 14:27:20 -06001862config USE_OF
1863 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001864 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001865 select OF
1866 select OF_EARLY_FLATTREE
1867 help
1868 Include support for flattened device tree machine descriptions.
1869
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001870config ATAGS
1871 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1872 default y
1873 help
1874 This is the traditional way of passing data to the kernel at boot
1875 time. If you are solely relying on the flattened device tree (or
1876 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1877 to remove ATAGS support from your kernel binary. If unsure,
1878 leave this to y.
1879
1880config DEPRECATED_PARAM_STRUCT
1881 bool "Provide old way to pass kernel parameters"
1882 depends on ATAGS
1883 help
1884 This was deprecated in 2001 and announced to live on for 5 years.
1885 Some old boot loaders still use this way.
1886
Linus Torvalds1da177e2005-04-16 15:20:36 -07001887# Compressed boot loader in ROM. Yes, we really want to ask about
1888# TEXT and BSS so we preserve their values in the config files.
1889config ZBOOT_ROM_TEXT
1890 hex "Compressed ROM boot loader base address"
1891 default "0"
1892 help
1893 The physical address at which the ROM-able zImage is to be
1894 placed in the target. Platforms which normally make use of
1895 ROM-able zImage formats normally set this to a suitable
1896 value in their defconfig file.
1897
1898 If ZBOOT_ROM is not enabled, this has no effect.
1899
1900config ZBOOT_ROM_BSS
1901 hex "Compressed ROM boot loader BSS address"
1902 default "0"
1903 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001904 The base address of an area of read/write memory in the target
1905 for the ROM-able zImage which must be available while the
1906 decompressor is running. It must be large enough to hold the
1907 entire decompressed kernel plus an additional 128 KiB.
1908 Platforms which normally make use of ROM-able zImage formats
1909 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001910
1911 If ZBOOT_ROM is not enabled, this has no effect.
1912
1913config ZBOOT_ROM
1914 bool "Compressed boot loader in ROM/flash"
1915 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1916 help
1917 Say Y here if you intend to execute your compressed kernel image
1918 (zImage) directly from ROM or flash. If unsure, say N.
1919
Simon Horman090ab3f2011-04-26 06:29:53 +01001920choice
1921 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1922 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1923 default ZBOOT_ROM_NONE
1924 help
1925 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001926 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001927 kernel image to an MMC or SD card and boot the kernel straight
1928 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001929 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001930 rest the kernel image to RAM.
1931
1932config ZBOOT_ROM_NONE
1933 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1934 help
1935 Do not load image from SD or MMC
1936
Simon Hormanf45b1142011-01-11 04:01:08 +01001937config ZBOOT_ROM_MMCIF
1938 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001939 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001940 Load image from MMCIF hardware block.
1941
1942config ZBOOT_ROM_SH_MOBILE_SDHI
1943 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1944 help
1945 Load image from SDHI hardware block
1946
1947endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001948
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001949config ARM_APPENDED_DTB
1950 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1951 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1952 help
1953 With this option, the boot code will look for a device tree binary
1954 (DTB) appended to zImage
1955 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1956
1957 This is meant as a backward compatibility convenience for those
1958 systems with a bootloader that can't be upgraded to accommodate
1959 the documented boot protocol using a device tree.
1960
1961 Beware that there is very little in terms of protection against
1962 this option being confused by leftover garbage in memory that might
1963 look like a DTB header after a reboot if no actual DTB is appended
1964 to zImage. Do not leave this option active in a production kernel
1965 if you don't intend to always append a DTB. Proper passing of the
1966 location into r2 of a bootloader provided DTB is always preferable
1967 to this option.
1968
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001969config ARM_ATAG_DTB_COMPAT
1970 bool "Supplement the appended DTB with traditional ATAG information"
1971 depends on ARM_APPENDED_DTB
1972 help
1973 Some old bootloaders can't be updated to a DTB capable one, yet
1974 they provide ATAGs with memory configuration, the ramdisk address,
1975 the kernel cmdline string, etc. Such information is dynamically
1976 provided by the bootloader and can't always be stored in a static
1977 DTB. To allow a device tree enabled kernel to be used with such
1978 bootloaders, this option allows zImage to extract the information
1979 from the ATAG list and store it at run time into the appended DTB.
1980
Genoud Richardd0f34a12012-06-26 16:37:59 +01001981choice
1982 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
1983 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1984
1985config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1986 bool "Use bootloader kernel arguments if available"
1987 help
1988 Uses the command-line options passed by the boot loader instead of
1989 the device tree bootargs property. If the boot loader doesn't provide
1990 any, the device tree bootargs property will be used.
1991
1992config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
1993 bool "Extend with bootloader kernel arguments"
1994 help
1995 The command-line arguments provided by the boot loader will be
1996 appended to the the device tree bootargs property.
1997
1998endchoice
1999
Linus Torvalds1da177e2005-04-16 15:20:36 -07002000config CMDLINE
2001 string "Default kernel command string"
2002 default ""
2003 help
2004 On some architectures (EBSA110 and CATS), there is currently no way
2005 for the boot loader to pass arguments to the kernel. For these
2006 architectures, you should supply some command-line options at build
2007 time by entering them here. As a minimum, you should specify the
2008 memory size and the root device (e.g., mem=64M root=/dev/nfs).
2009
Victor Boivie4394c122011-05-04 17:07:55 +01002010choice
2011 prompt "Kernel command line type" if CMDLINE != ""
2012 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002013 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01002014
2015config CMDLINE_FROM_BOOTLOADER
2016 bool "Use bootloader kernel arguments if available"
2017 help
2018 Uses the command-line options passed by the boot loader. If
2019 the boot loader doesn't provide any, the default kernel command
2020 string provided in CMDLINE will be used.
2021
2022config CMDLINE_EXTEND
2023 bool "Extend bootloader kernel arguments"
2024 help
2025 The command-line arguments provided by the boot loader will be
2026 appended to the default kernel command string.
2027
Alexander Holler92d20402010-02-16 19:04:53 +01002028config CMDLINE_FORCE
2029 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01002030 help
2031 Always use the default kernel command string, even if the boot
2032 loader passes other arguments to the kernel.
2033 This is useful if you cannot or don't want to change the
2034 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01002035endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002036
Linus Torvalds1da177e2005-04-16 15:20:36 -07002037config XIP_KERNEL
2038 bool "Kernel Execute-In-Place from ROM"
Rob Herring387798b2012-09-06 13:41:12 -05002039 depends on !ZBOOT_ROM && !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07002040 help
2041 Execute-In-Place allows the kernel to run from non-volatile storage
2042 directly addressable by the CPU, such as NOR flash. This saves RAM
2043 space since the text section of the kernel is not loaded from flash
2044 to RAM. Read-write sections, such as the data section and stack,
2045 are still copied to RAM. The XIP kernel is not compressed since
2046 it has to run directly from flash, so it will take more space to
2047 store it. The flash address used to link the kernel object files,
2048 and for storing it, is configuration dependent. Therefore, if you
2049 say Y here, you must know the proper physical address where to
2050 store the kernel image depending on your own flash memory usage.
2051
2052 Also note that the make target becomes "make xipImage" rather than
2053 "make zImage" or "make Image". The final kernel binary to put in
2054 ROM memory will be arch/arm/boot/xipImage.
2055
2056 If unsure, say N.
2057
2058config XIP_PHYS_ADDR
2059 hex "XIP Kernel Physical Location"
2060 depends on XIP_KERNEL
2061 default "0x00080000"
2062 help
2063 This is the physical address in your flash memory the kernel will
2064 be linked for and stored to. This address is dependent on your
2065 own flash usage.
2066
Richard Purdiec587e4a2007-02-06 21:29:00 +01002067config KEXEC
2068 bool "Kexec system call (EXPERIMENTAL)"
Will Deacon02b73e22011-06-06 15:49:23 +01002069 depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002070 help
2071 kexec is a system call that implements the ability to shutdown your
2072 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002073 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002074 you can start any kernel with it, not just Linux.
2075
2076 It is an ongoing process to be certain the hardware in a machine
2077 is properly shutdown, so do not be surprised if this code does not
2078 initially work for you. It may help to enable device hotplugging
2079 support.
2080
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002081config ATAGS_PROC
2082 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002083 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01002084 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002085 help
2086 Should the atags used to boot the kernel be exported in an "atags"
2087 file in procfs. Useful with kexec.
2088
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002089config CRASH_DUMP
2090 bool "Build kdump crash kernel (EXPERIMENTAL)"
2091 depends on EXPERIMENTAL
2092 help
2093 Generate crash dump after being started by kexec. This should
2094 be normally only set in special crash dump kernels which are
2095 loaded in the main kernel with kexec-tools into a specially
2096 reserved region and then later executed after a crash by
2097 kdump/kexec. The crash dump kernel must be compiled to a
2098 memory address not used by the main kernel
2099
2100 For more details see Documentation/kdump/kdump.txt
2101
Eric Miaoe69edc792010-07-05 15:56:50 +02002102config AUTO_ZRELADDR
2103 bool "Auto calculation of the decompressed kernel image address"
2104 depends on !ZBOOT_ROM && !ARCH_U300
2105 help
2106 ZRELADDR is the physical address where the decompressed kernel
2107 image will be placed. If AUTO_ZRELADDR is selected, the address
2108 will be determined at run-time by masking the current IP with
2109 0xf8000000. This assumes the zImage being placed in the first 128MB
2110 from start of memory.
2111
Linus Torvalds1da177e2005-04-16 15:20:36 -07002112endmenu
2113
Russell Kingac9d7ef2008-08-18 17:26:00 +01002114menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002115
Ben Dooks89c52ed2009-07-30 23:23:24 +01002116if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002117
2118source "drivers/cpufreq/Kconfig"
2119
Yong Shen64f102b2010-10-21 21:18:59 +08002120config CPU_FREQ_IMX
2121 tristate "CPUfreq driver for i.MX CPUs"
2122 depends on ARCH_MXC && CPU_FREQ
Arnd Bergmannf637c4c2012-08-16 10:40:40 +00002123 select CPU_FREQ_TABLE
Yong Shen64f102b2010-10-21 21:18:59 +08002124 help
2125 This enables the CPUfreq driver for i.MX CPUs.
2126
Linus Torvalds1da177e2005-04-16 15:20:36 -07002127config CPU_FREQ_SA1100
2128 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002129
2130config CPU_FREQ_SA1110
2131 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002132
2133config CPU_FREQ_INTEGRATOR
2134 tristate "CPUfreq driver for ARM Integrator CPUs"
2135 depends on ARCH_INTEGRATOR && CPU_FREQ
2136 default y
2137 help
2138 This enables the CPUfreq driver for ARM Integrator CPUs.
2139
2140 For details, take a look at <file:Documentation/cpu-freq>.
2141
2142 If in doubt, say Y.
2143
Russell King9e2697f2007-12-14 13:30:14 +00002144config CPU_FREQ_PXA
2145 bool
2146 depends on CPU_FREQ && ARCH_PXA && PXA25x
2147 default y
2148 select CPU_FREQ_DEFAULT_GOV_USERSPACE
Russell Kingb1b3f492012-10-06 17:12:25 +01002149 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002150
Ben Dooks9d56c022009-07-30 23:23:25 +01002151config CPU_FREQ_S3C
2152 bool
2153 help
2154 Internal configuration node for common cpufreq on Samsung SoC
2155
2156config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002157 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09002158 depends on ARCH_S3C24XX && CPU_FREQ && EXPERIMENTAL
Ben Dooks9d56c022009-07-30 23:23:25 +01002159 select CPU_FREQ_S3C
2160 help
2161 This enables the CPUfreq driver for the Samsung S3C24XX family
2162 of CPUs.
2163
2164 For details, take a look at <file:Documentation/cpu-freq>.
2165
2166 If in doubt, say N.
2167
2168config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002169 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002170 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2171 help
2172 Compile in support for changing the PLL frequency from the
2173 S3C24XX series CPUfreq driver. The PLL takes time to settle
2174 after a frequency change, so by default it is not enabled.
2175
2176 This also means that the PLL tables for the selected CPU(s) will
2177 be built which may increase the size of the kernel image.
2178
2179config CPU_FREQ_S3C24XX_DEBUG
2180 bool "Debug CPUfreq Samsung driver core"
2181 depends on CPU_FREQ_S3C24XX
2182 help
2183 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2184
2185config CPU_FREQ_S3C24XX_IODEBUG
2186 bool "Debug CPUfreq Samsung driver IO timing"
2187 depends on CPU_FREQ_S3C24XX
2188 help
2189 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2190
Ben Dookse6d197a2009-07-30 23:23:42 +01002191config CPU_FREQ_S3C24XX_DEBUGFS
2192 bool "Export debugfs for CPUFreq"
2193 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2194 help
2195 Export status information via debugfs.
2196
Linus Torvalds1da177e2005-04-16 15:20:36 -07002197endif
2198
Russell Kingac9d7ef2008-08-18 17:26:00 +01002199source "drivers/cpuidle/Kconfig"
2200
2201endmenu
2202
Linus Torvalds1da177e2005-04-16 15:20:36 -07002203menu "Floating point emulation"
2204
2205comment "At least one emulation must be selected"
2206
2207config FPE_NWFPE
2208 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002209 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002210 ---help---
2211 Say Y to include the NWFPE floating point emulator in the kernel.
2212 This is necessary to run most binaries. Linux does not currently
2213 support floating point hardware so you need to say Y here even if
2214 your machine has an FPA or floating point co-processor podule.
2215
2216 You may say N here if you are going to load the Acorn FPEmulator
2217 early in the bootup.
2218
2219config FPE_NWFPE_XP
2220 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002221 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002222 help
2223 Say Y to include 80-bit support in the kernel floating-point
2224 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2225 Note that gcc does not generate 80-bit operations by default,
2226 so in most cases this option only enlarges the size of the
2227 floating point emulator without any good reason.
2228
2229 You almost surely want to say N here.
2230
2231config FPE_FASTFPE
2232 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002233 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002234 ---help---
2235 Say Y here to include the FAST floating point emulator in the kernel.
2236 This is an experimental much faster emulator which now also has full
2237 precision for the mantissa. It does not support any exceptions.
2238 It is very simple, and approximately 3-6 times faster than NWFPE.
2239
2240 It should be sufficient for most programs. It may be not suitable
2241 for scientific calculations, but you have to check this for yourself.
2242 If you do not feel you need a faster FP emulation you should better
2243 choose NWFPE.
2244
2245config VFP
2246 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002247 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002248 help
2249 Say Y to include VFP support code in the kernel. This is needed
2250 if your hardware includes a VFP unit.
2251
2252 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2253 release notes and additional status information.
2254
2255 Say N if your target does not have VFP hardware.
2256
Catalin Marinas25ebee02007-09-25 15:22:24 +01002257config VFPv3
2258 bool
2259 depends on VFP
2260 default y if CPU_V7
2261
Catalin Marinasb5872db2008-01-10 19:16:17 +01002262config NEON
2263 bool "Advanced SIMD (NEON) Extension support"
2264 depends on VFPv3 && CPU_V7
2265 help
2266 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2267 Extension.
2268
Linus Torvalds1da177e2005-04-16 15:20:36 -07002269endmenu
2270
2271menu "Userspace binary formats"
2272
2273source "fs/Kconfig.binfmt"
2274
2275config ARTHUR
2276 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00002277 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002278 help
2279 Say Y here to include the kernel code necessary if you want to run
2280 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2281 experimental; if this sounds frightening, say N and sleep in peace.
2282 You can also say M here to compile this support as a module (which
2283 will be called arthur).
2284
2285endmenu
2286
2287menu "Power management options"
2288
Russell Kingeceab4a2005-11-15 11:31:41 +00002289source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002290
Johannes Bergf4cb5702007-12-08 02:14:00 +01002291config ARCH_SUSPEND_POSSIBLE
Stephen Warren4b1082c2012-09-05 09:58:27 -06002292 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002293 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
Chao Xie3f5d0812012-05-07 11:23:58 +08002294 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002295 def_bool y
2296
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002297config ARM_CPU_SUSPEND
2298 def_bool PM_SLEEP
2299
Linus Torvalds1da177e2005-04-16 15:20:36 -07002300endmenu
2301
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002302source "net/Kconfig"
2303
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002304source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002305
2306source "fs/Kconfig"
2307
Linus Torvalds1da177e2005-04-16 15:20:36 -07002308source "arch/arm/Kconfig.debug"
2309
2310source "security/Kconfig"
2311
2312source "crypto/Kconfig"
2313
2314source "lib/Kconfig"