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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
8 select CPU_PM if (SUSPEND || CPU_IDLE)
9 select DCACHE_WORD_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && !CPU_BIG_ENDIAN
10 select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI)
11 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
12 select GENERIC_IRQ_PROBE
13 select GENERIC_IRQ_SHOW
14 select GENERIC_KERNEL_THREAD
Linus Torvalds3d6ee362012-10-13 17:18:53 -070015 select GENERIC_KERNEL_EXECVE
Russell Kingb1b3f492012-10-06 17:12:25 +010016 select GENERIC_PCI_IOMAP
17 select GENERIC_SMP_IDLE_THREAD
18 select GENERIC_STRNCPY_FROM_USER
19 select GENERIC_STRNLEN_USER
20 select HARDIRQS_SW_RESEND
21 select HAVE_AOUT
Rabin Vincent09f05d82012-02-18 17:52:41 +010022 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
Jason Wessel5cbad0e2008-02-20 13:33:40 -060023 select HAVE_ARCH_KGDB
Wade Farnsworth0693bf62012-04-04 16:19:47 +010024 select HAVE_ARCH_TRACEHOOK
Russell Kingb1b3f492012-10-06 17:12:25 +010025 select HAVE_BPF_JIT
26 select HAVE_C_RECORDMCOUNT
27 select HAVE_DEBUG_KMEMLEAK
28 select HAVE_DMA_API_DEBUG
29 select HAVE_DMA_ATTRS
30 select HAVE_DMA_CONTIGUOUS if MMU
31 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
32 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
33 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
34 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
35 select HAVE_GENERIC_DMA_COHERENT
36 select HAVE_GENERIC_HARDIRQS
37 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
38 select HAVE_IDE if PCI || ISA || PCMCIA
39 select HAVE_IRQ_WORK
40 select HAVE_KERNEL_GZIP
41 select HAVE_KERNEL_LZMA
42 select HAVE_KERNEL_LZO
43 select HAVE_KERNEL_XZ
Jon Medhurst856bc352011-06-14 13:09:39 +010044 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080045 select HAVE_KRETPROBES if (HAVE_KPROBES)
Russell Kingb1b3f492012-10-06 17:12:25 +010046 select HAVE_MEMBLOCK
47 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jamie Iles7ada1892010-02-02 20:24:58 +010048 select HAVE_PERF_EVENTS
Will Deacone513f8b2010-06-25 12:24:53 +010049 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kingb1b3f492012-10-06 17:12:25 +010050 select HAVE_SYSCALL_TRACEPOINTS
Catalin Marinasaf1839e2012-10-08 16:28:08 -070051 select HAVE_UID16
Anna-Maria Gleixner3d92a712012-05-18 16:45:44 +000052 select KTIME_SCALAR
Russell Kingb1b3f492012-10-06 17:12:25 +010053 select PERF_USE_VMALLOC
54 select RTC_LIB
55 select SYS_SUPPORTS_APM_EMULATION
David Howells786d35d2012-09-28 14:31:03 +093056 select HAVE_MOD_ARCH_SPECIFIC if ARM_UNWIND
57 select MODULES_USE_ELF_REL
Linus Torvalds1da177e2005-04-16 15:20:36 -070058 help
59 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000060 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070061 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000062 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070063 Europe. There is an ARM Linux project with a web page at
64 <http://www.arm.linux.org.uk/>.
65
Russell King74facff2011-06-02 11:16:22 +010066config ARM_HAS_SG_CHAIN
67 bool
68
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020069config NEED_SG_DMA_LENGTH
70 bool
71
72config ARM_DMA_USE_IOMMU
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020073 bool
Russell Kingb1b3f492012-10-06 17:12:25 +010074 select ARM_HAS_SG_CHAIN
75 select NEED_SG_DMA_LENGTH
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020076
Russell King1a189b92008-04-13 21:41:55 +010077config HAVE_PWM
78 bool
79
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010080config MIGHT_HAVE_PCI
81 bool
82
Ralf Baechle75e71532007-02-09 17:08:58 +000083config SYS_SUPPORTS_APM_EMULATION
84 bool
85
David Brownell0a938b92007-03-05 00:30:18 -080086config GENERIC_GPIO
87 bool
David Brownell0a938b92007-03-05 00:30:18 -080088
Linus Walleijbc581772009-09-15 17:30:37 +010089config HAVE_TCM
90 bool
91 select GENERIC_ALLOCATOR
92
Russell Kinge119bff2010-01-10 17:23:29 +000093config HAVE_PROC_CPU
94 bool
95
Al Viro5ea81762007-02-11 15:41:31 +000096config NO_IOPORT
97 bool
Al Viro5ea81762007-02-11 15:41:31 +000098
Linus Torvalds1da177e2005-04-16 15:20:36 -070099config EISA
100 bool
101 ---help---
102 The Extended Industry Standard Architecture (EISA) bus was
103 developed as an open alternative to the IBM MicroChannel bus.
104
105 The EISA bus provided some of the features of the IBM MicroChannel
106 bus while maintaining backward compatibility with cards made for
107 the older ISA bus. The EISA bus saw limited use between 1988 and
108 1995 when it was made obsolete by the PCI bus.
109
110 Say Y here if you are building a kernel for an EISA-based machine.
111
112 Otherwise, say N.
113
114config SBUS
115 bool
116
Russell Kingf16fb1e2007-04-28 09:59:37 +0100117config STACKTRACE_SUPPORT
118 bool
119 default y
120
Nicolas Pitref76e9152008-04-24 01:31:46 -0400121config HAVE_LATENCYTOP_SUPPORT
122 bool
123 depends on !SMP
124 default y
125
Russell Kingf16fb1e2007-04-28 09:59:37 +0100126config LOCKDEP_SUPPORT
127 bool
128 default y
129
Russell King7ad1bcb2006-08-27 12:07:02 +0100130config TRACE_IRQFLAGS_SUPPORT
131 bool
132 default y
133
Linus Torvalds1da177e2005-04-16 15:20:36 -0700134config RWSEM_GENERIC_SPINLOCK
135 bool
136 default y
137
138config RWSEM_XCHGADD_ALGORITHM
139 bool
140
David Howellsf0d1b0b2006-12-08 02:37:49 -0800141config ARCH_HAS_ILOG2_U32
142 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800143
144config ARCH_HAS_ILOG2_U64
145 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800146
Ben Dooks89c52ed2009-07-30 23:23:24 +0100147config ARCH_HAS_CPUFREQ
148 bool
149 help
150 Internal node to signify that the ARCH has CPUFREQ support
151 and that the relevant menu configurations are displayed for
152 it.
153
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800154config GENERIC_HWEIGHT
155 bool
156 default y
157
Linus Torvalds1da177e2005-04-16 15:20:36 -0700158config GENERIC_CALIBRATE_DELAY
159 bool
160 default y
161
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100162config ARCH_MAY_HAVE_PC_FDC
163 bool
164
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800165config ZONE_DMA
166 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800167
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800168config NEED_DMA_MAP_STATE
169 def_bool y
170
Rob Herring58af4a22012-03-20 14:33:01 -0500171config ARCH_HAS_DMA_SET_COHERENT_MASK
172 bool
173
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174config GENERIC_ISA_DMA
175 bool
176
Linus Torvalds1da177e2005-04-16 15:20:36 -0700177config FIQ
178 bool
179
Rob Herring13a50452012-02-07 09:28:22 -0600180config NEED_RET_TO_USER
181 bool
182
Al Viro034d2f52005-12-19 16:27:59 -0500183config ARCH_MTD_XIP
184 bool
185
Hyok S. Choic760fc12006-03-27 15:18:50 +0100186config VECTORS_BASE
187 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900188 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100189 default DRAM_BASE if REMAP_VECTORS_TO_RAM
190 default 0x00000000
191 help
192 The base address of exception vectors.
193
Russell Kingdc21af92011-01-04 19:09:43 +0000194config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100195 bool "Patch physical to virtual translations at runtime" if EMBEDDED
196 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100197 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000198 depends on !ARCH_REALVIEW || !SPARSEMEM
199 help
Russell King111e9a52011-05-12 10:02:42 +0100200 Patch phys-to-virt and virt-to-phys translation functions at
201 boot and module load time according to the position of the
202 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000203
Russell King111e9a52011-05-12 10:02:42 +0100204 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100205 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000206
Russell Kingc1beced2011-08-10 10:23:45 +0100207 Only disable this option if you know that you do not require
208 this feature (eg, building a kernel for a single machine) and
209 you need to shrink the kernel to the minimal size.
210
Rob Herring01464222012-08-28 13:06:41 -0500211config NEED_MACH_GPIO_H
212 bool
213 help
214 Select this when mach/gpio.h is required to provide special
215 definitions for this platform. The need for mach/gpio.h should
216 be avoided when possible.
217
Rob Herringc334bc12012-03-04 22:03:33 -0600218config NEED_MACH_IO_H
219 bool
220 help
221 Select this when mach/io.h is required to provide special
222 definitions for this platform. The need for mach/io.h should
223 be avoided when possible.
224
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400225config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400226 bool
Russell King111e9a52011-05-12 10:02:42 +0100227 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400228 Select this when mach/memory.h is required to provide special
229 definitions for this platform. The need for mach/memory.h should
230 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400231
232config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100233 hex "Physical address of main memory" if MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400234 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre974c0722011-12-02 23:09:42 +0100235 default DRAM_BASE if !MMU
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400236 help
237 Please provide the physical address corresponding to the
238 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000239
Simon Glass87e040b2011-08-16 23:44:26 +0100240config GENERIC_BUG
241 def_bool y
242 depends on BUG
243
Linus Torvalds1da177e2005-04-16 15:20:36 -0700244source "init/Kconfig"
245
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700246source "kernel/Kconfig.freezer"
247
Linus Torvalds1da177e2005-04-16 15:20:36 -0700248menu "System Type"
249
Hyok S. Choi3c427972009-07-24 12:35:00 +0100250config MMU
251 bool "MMU-based Paged Memory Management Support"
252 default y
253 help
254 Select if you want MMU-based virtualised addressing space
255 support by paged memory management. If unsure, say 'Y'.
256
Russell Kingccf50e22010-03-15 19:03:06 +0000257#
258# The "ARM system type" choice list is ordered alphabetically by option
259# text. Please add new entries in the option alphabetic order.
260#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700261choice
262 prompt "ARM system type"
Rob Herring387798b2012-09-06 13:41:12 -0500263 default ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700264
Rob Herring387798b2012-09-06 13:41:12 -0500265config ARCH_MULTIPLATFORM
266 bool "Allow multiple platforms to be selected"
Russell Kingb1b3f492012-10-06 17:12:25 +0100267 depends on MMU
Rob Herring387798b2012-09-06 13:41:12 -0500268 select ARM_PATCH_PHYS_VIRT
269 select AUTO_ZRELADDR
Dinh Nguyen66314222012-07-18 16:07:18 -0600270 select COMMON_CLK
Rob Herring387798b2012-09-06 13:41:12 -0500271 select MULTI_IRQ_HANDLER
Dinh Nguyen66314222012-07-18 16:07:18 -0600272 select SPARSE_IRQ
273 select USE_OF
Dinh Nguyen66314222012-07-18 16:07:18 -0600274
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100275config ARCH_INTEGRATOR
276 bool "ARM Ltd. Integrator family"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100277 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100278 select ARM_AMBA
Linus Walleija6131632012-06-11 17:33:12 +0200279 select COMMON_CLK
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200280 select COMMON_CLK_VERSATILE
Russell Kingb1b3f492012-10-06 17:12:25 +0100281 select GENERIC_CLOCKEVENTS
Linus Walleij9904f792011-12-09 10:29:23 +0100282 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000283 select ICST
Russell Kingb1b3f492012-10-06 17:12:25 +0100284 select MULTI_IRQ_HANDLER
285 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000286 select PLAT_VERSATILE
Russell Kingc41b16f2011-01-19 15:32:15 +0000287 select PLAT_VERSATILE_FPGA_IRQ
Linus Walleij695436e2012-02-26 10:46:48 +0100288 select SPARSE_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100289 help
290 Support for ARM's Integrator platform.
291
292config ARCH_REALVIEW
293 bool "ARM Ltd. RealView family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100294 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100295 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100296 select ARM_TIMER_SP804
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200297 select COMMON_CLK
298 select COMMON_CLK_VERSATILE
Catalin Marinasae30cea2008-02-04 17:26:55 +0100299 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100300 select GPIO_PL061 if GPIOLIB
301 select ICST
302 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000303 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000304 select PLAT_VERSATILE_CLCD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100305 help
306 This enables support for ARM Ltd RealView boards.
307
308config ARCH_VERSATILE
309 bool "ARM Ltd. Versatile family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100310 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100311 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100312 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100313 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100314 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100315 select GENERIC_CLOCKEVENTS
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900316 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000317 select ICST
Russell Kingf4b8b312010-01-14 12:48:06 +0000318 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000319 select PLAT_VERSATILE_CLCD
Russell Kingb1b3f492012-10-06 17:12:25 +0100320 select PLAT_VERSATILE_CLOCK
Russell Kingc41b16f2011-01-19 15:32:15 +0000321 select PLAT_VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100322 help
323 This enables support for ARM Ltd Versatile board.
324
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100325config ARCH_AT91
326 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100327 select ARCH_REQUIRE_GPIOLIB
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100328 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100329 select HAVE_CLK
Nicolas Ferree2615012011-11-22 22:26:09 +0100330 select IRQ_DOMAIN
Rob Herring01464222012-08-28 13:06:41 -0500331 select NEED_MACH_GPIO_H
Rob Herring1ac02d72012-04-04 17:48:04 -0500332 select NEED_MACH_IO_H if PCCARD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100333 help
Nicolas Ferre929e9942012-03-15 12:21:12 +0100334 This enables support for systems based on Atmel
335 AT91RM9200 and AT91SAM9* processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100336
Simon Arlottec9653b2012-05-26 01:04:43 -0600337config ARCH_BCM2835
338 bool "Broadcom BCM2835 family"
339 select ARCH_WANT_OPTIONAL_GPIOLIB
340 select ARM_AMBA
341 select ARM_ERRATA_411920
342 select ARM_TIMER_SP804
343 select CLKDEV_LOOKUP
344 select COMMON_CLK
345 select CPU_V6
346 select GENERIC_CLOCKEVENTS
347 select MULTI_IRQ_HANDLER
348 select SPARSE_IRQ
349 select USE_OF
350 help
351 This enables support for the Broadcom BCM2835 SoC. This SoC is
352 use in the Raspberry Pi, and Roku 2 devices.
353
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300354config ARCH_CNS3XXX
355 bool "Cavium Networks CNS3XXX family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100356 select ARM_GIC
Imre Kaloz00d27112011-07-07 12:19:09 +0200357 select CPU_V6K
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300358 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000359 select MIGHT_HAVE_CACHE_L2X0
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100360 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400361 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300362 help
363 Support for Cavium Networks CNS3XXX platform.
364
Russell King93e22562012-10-12 14:20:52 +0100365config ARCH_CLPS711X
366 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
Alexander Shiyana3b8d4a2012-10-09 20:05:56 +0400367 select ARCH_REQUIRE_GPIOLIB
Russell King93e22562012-10-12 14:20:52 +0100368 select ARCH_USES_GETTIMEOFFSET
Alexander Shiyanea7d1bc2012-11-17 17:57:11 +0400369 select AUTO_ZRELADDR
Russell King93e22562012-10-12 14:20:52 +0100370 select CLKDEV_LOOKUP
371 select COMMON_CLK
372 select CPU_ARM720T
Alexander Shiyan4a8355c2012-10-10 19:45:27 +0400373 select GENERIC_CLOCKEVENTS
Alexander Shiyan99f04c82012-11-17 17:57:14 +0400374 select MULTI_IRQ_HANDLER
Russell King93e22562012-10-12 14:20:52 +0100375 select NEED_MACH_MEMORY_H
Alexander Shiyan0d8be812012-11-17 17:57:13 +0400376 select SPARSE_IRQ
Russell King93e22562012-10-12 14:20:52 +0100377 help
378 Support for Cirrus Logic 711x/721x/731x based boards.
379
Russell King788c9702009-04-26 14:21:59 +0100380config ARCH_GEMINI
381 bool "Cortina Systems Gemini"
Russell King788c9702009-04-26 14:21:59 +0100382 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000383 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100384 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100385 help
386 Support for the Cortina Systems Gemini family SoCs
387
Barry Song156a0992012-08-23 13:41:58 +0800388config ARCH_SIRF
389 bool "CSR SiRF"
Arnd Bergmannf6387092012-07-04 14:33:01 +0000390 select ARCH_REQUIRE_GPIOLIB
Binghua Duan198678b2012-08-20 06:42:36 +0000391 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100392 select GENERIC_CLOCKEVENTS
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200393 select GENERIC_IRQ_CHIP
Dave Martince5ea9f2011-11-29 15:56:19 +0000394 select MIGHT_HAVE_CACHE_L2X0
Russell Kingb1b3f492012-10-06 17:12:25 +0100395 select NO_IOPORT
Barry Songcbd8d842012-05-15 10:35:46 +0800396 select PINCTRL
397 select PINCTRL_SIRF
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200398 select USE_OF
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200399 help
Barry Song156a0992012-08-23 13:41:58 +0800400 Support for CSR SiRFprimaII/Marco/Polo platforms
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200401
Linus Torvalds1da177e2005-04-16 15:20:36 -0700402config ARCH_EBSA110
403 bool "EBSA-110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100404 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000405 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100406 select ISA
Rob Herringc334bc12012-03-04 22:03:33 -0600407 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400408 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100409 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700410 help
411 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000412 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700413 Ethernet interface, two PCMCIA sockets, two serial ports and a
414 parallel port.
415
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000416config ARCH_EP93XX
417 bool "EP93xx-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100418 select ARCH_HAS_HOLES_MEMORYMODEL
419 select ARCH_REQUIRE_GPIOLIB
420 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000421 select ARM_AMBA
422 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100423 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100424 select CPU_ARM920T
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100425 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000426 help
427 This enables support for the Cirrus EP93xx series of CPUs.
428
Linus Torvalds1da177e2005-04-16 15:20:36 -0700429config ARCH_FOOTBRIDGE
430 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000431 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700432 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000433 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200434 select HAVE_IDE
Rob Herring8ef6e622012-03-01 20:48:12 -0600435 select NEED_MACH_IO_H if !MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400436 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000437 help
438 Support for systems based on the DC21285 companion chip
439 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700440
Russell King788c9702009-04-26 14:21:59 +0100441config ARCH_MXC
442 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100443 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100444 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100445 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100446 select GENERIC_CLOCKEVENTS
Shawn Guo8b6c44f2011-06-07 13:59:14 +0800447 select GENERIC_IRQ_CHIP
Sascha Hauerffa2ea32011-09-20 14:31:24 +0200448 select MULTI_IRQ_HANDLER
Shawn Guo8842a9e2012-06-14 11:16:14 +0800449 select SPARSE_IRQ
Uwe Kleine-König3e62af82012-07-06 09:47:20 +0200450 select USE_OF
Russell King788c9702009-04-26 14:21:59 +0100451 help
452 Support for Freescale MXC/iMX-based family of processors
453
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800454config ARCH_MXS
455 bool "Freescale MXS-based"
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800456 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100457 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100458 select CLKSRC_MMIO
Shawn Guo26646812012-04-29 00:02:39 +0800459 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100460 select GENERIC_CLOCKEVENTS
Shawn Guo6abda3e2011-12-20 16:12:34 +0800461 select HAVE_CLK_PREPARE
Shawn Guo4e0a1b82012-08-20 10:14:56 +0800462 select MULTI_IRQ_HANDLER
Shawn Guoa0f5e362012-05-06 23:13:13 +0800463 select PINCTRL
Shawn Guoc2668202012-08-20 21:52:12 +0800464 select SPARSE_IRQ
Shawn Guo6c4d4ef2012-05-04 21:42:41 +0800465 select USE_OF
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800466 help
467 Support for Freescale MXS-based family of processors
468
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100469config ARCH_NETX
470 bool "Hilscher NetX based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100471 select ARM_VIC
Russell King234b6ced2011-05-08 14:09:47 +0100472 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000473 select CPU_ARM926T
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100474 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000475 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100476 This enables support for systems based on the Hilscher NetX Soc
477
478config ARCH_H720X
479 bool "Hynix HMS720x-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100480 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000481 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100482 select ISA_DMA_API
483 help
484 This enables support for systems based on the Hynix HMS720x
485
Russell King3b938be2007-05-12 11:25:44 +0100486config ARCH_IOP13XX
487 bool "IOP13xx-based"
488 depends on MMU
Russell King3b938be2007-05-12 11:25:44 +0100489 select ARCH_SUPPORTS_MSI
Russell Kingb1b3f492012-10-06 17:12:25 +0100490 select CPU_XSC3
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400491 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600492 select NEED_RET_TO_USER
Russell Kingb1b3f492012-10-06 17:12:25 +0100493 select PCI
494 select PLAT_IOP
495 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100496 help
497 Support for Intel's IOP13XX (XScale) family of processors.
498
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100499config ARCH_IOP32X
500 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100501 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100502 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000503 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500504 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600505 select NEED_RET_TO_USER
Russell Kingf7e68bb2005-05-05 14:49:01 +0100506 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100507 select PLAT_IOP
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000508 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100509 Support for Intel's 80219 and IOP32X (XScale) family of
510 processors.
511
512config ARCH_IOP33X
513 bool "IOP33x-based"
514 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100515 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000516 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500517 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600518 select NEED_RET_TO_USER
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100519 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100520 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100521 help
522 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700523
Russell King3b938be2007-05-12 11:25:44 +0100524config ARCH_IXP4XX
525 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100526 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500527 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell Kingb1b3f492012-10-06 17:12:25 +0100528 select ARCH_REQUIRE_GPIOLIB
Russell King234b6ced2011-05-08 14:09:47 +0100529 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000530 select CPU_XSCALE
Russell Kingb1b3f492012-10-06 17:12:25 +0100531 select DMABOUNCE if PCI
Russell King3b938be2007-05-12 11:25:44 +0100532 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100533 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600534 select NEED_MACH_IO_H
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100535 help
Russell King3b938be2007-05-12 11:25:44 +0100536 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100537
Saeed Bisharaedabd382009-08-06 15:12:43 +0300538config ARCH_DOVE
539 bool "Marvell Dove"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300540 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100541 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300542 select GENERIC_CLOCKEVENTS
Russell King0f81bd42012-09-09 20:34:13 +0100543 select MIGHT_HAVE_PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200544 select PLAT_ORION_LEGACY
Russell King0f81bd42012-09-09 20:34:13 +0100545 select USB_ARCH_HAS_EHCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300546 help
547 Support for the Marvell Dove SoC 88AP510
548
Saeed Bishara651c74c2008-06-22 22:45:06 +0200549config ARCH_KIRKWOOD
550 bool "Marvell Kirkwood"
Erik Benadaa8865652009-05-28 17:08:55 -0700551 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100552 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200553 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100554 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200555 select PLAT_ORION_LEGACY
Saeed Bishara651c74c2008-06-22 22:45:06 +0200556 help
557 Support for the following Marvell Kirkwood series SoCs:
558 88F6180, 88F6192 and 88F6281.
559
Russell King788c9702009-04-26 14:21:59 +0100560config ARCH_MV78XX0
561 bool "Marvell MV78xx0"
Erik Benadaa8865652009-05-28 17:08:55 -0700562 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100563 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100564 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100565 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200566 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100567 help
568 Support for the following Marvell MV78xx0 series SoCs:
569 MV781x0, MV782x0.
570
571config ARCH_ORION5X
572 bool "Marvell Orion"
573 depends on MMU
Erik Benadaa8865652009-05-28 17:08:55 -0700574 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100575 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100576 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100577 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200578 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100579 help
580 Support for the following Marvell Orion 5x series SoCs:
581 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
582 Orion-2 (5281), Orion-1-90 (6183).
583
584config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500585 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100586 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100587 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100588 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100589 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100590 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800591 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800592 select IRQ_DOMAIN
Russell Kingb1b3f492012-10-06 17:12:25 +0100593 select NEED_MACH_GPIO_H
Russell King788c9702009-04-26 14:21:59 +0100594 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400595 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100596 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500597 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100598
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100599config ARCH_KS8695
600 bool "Micrel/Kendin KS8695"
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100601 select ARCH_REQUIRE_GPIOLIB
Linus Walleijc7e783d2012-08-29 20:27:22 +0200602 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100603 select CPU_ARM922T
Linus Walleijc7e783d2012-08-29 20:27:22 +0200604 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100605 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100606 help
607 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
608 System-on-Chip devices.
609
Russell King788c9702009-04-26 14:21:59 +0100610config ARCH_W90X900
611 bool "Nuvoton W90X900 CPU"
wanzongshunc52d3d62009-06-10 15:49:32 +0100612 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100613 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100614 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100615 select CPU_ARM926T
wanzongshun58b53692009-08-14 15:36:44 +0100616 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200617 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100618 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
619 At present, the w90x900 has been renamed nuc900, regarding
620 the ARM series product line, you can login the following
621 link address to know more.
622
623 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
624 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400625
Russell King93e22562012-10-12 14:20:52 +0100626config ARCH_LPC32XX
627 bool "NXP LPC32XX"
628 select ARCH_REQUIRE_GPIOLIB
629 select ARM_AMBA
Russell King40737232011-01-06 22:32:52 +0000630 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100631 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100632 select CPU_ARM926T
633 select GENERIC_CLOCKEVENTS
634 select HAVE_IDE
635 select HAVE_PWM
636 select USB_ARCH_HAS_OHCI
637 select USE_OF
638 help
639 Support for the NXP LPC32XX family of processors
640
wanzongshuna62e9032009-12-31 15:06:05 +0100641config ARCH_TEGRA
642 bool "NVIDIA Tegra"
Russell Kingb1b3f492012-10-06 17:12:25 +0100643 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800644 select CLKDEV_LOOKUP
645 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100646 select COMMON_CLK
Erik Gillingc5f80062010-01-21 16:53:02 -0800647 select GENERIC_CLOCKEVENTS
648 select GENERIC_GPIO
649 select HAVE_CLK
Dave Martin3b556582011-12-07 15:38:04 +0000650 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000651 select MIGHT_HAVE_CACHE_L2X0
Stephen Warren2c95b7e2012-05-21 15:07:19 -0600652 select USE_OF
Erik Gillingc5f80062010-01-21 16:53:02 -0800653 help
654 This enables support for NVIDIA Tegra based systems (Tegra APX,
655 Tegra 6xx and Tegra 2 series).
656
Linus Torvalds1da177e2005-04-16 15:20:36 -0700657config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700658 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100659 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100660 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100661 select ARCH_MTD_XIP
662 select ARCH_REQUIRE_GPIOLIB
663 select ARM_CPU_SUSPEND if PM
664 select AUTO_ZRELADDR
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100665 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100666 select CLKSRC_MMIO
Eric Miao981d0f32007-07-24 01:22:43 +0100667 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800668 select GPIO_PXA
Russell Kingb1b3f492012-10-06 17:12:25 +0100669 select HAVE_IDE
670 select MULTI_IRQ_HANDLER
671 select NEED_MACH_GPIO_H
Eric Miaobd5ce432009-01-20 12:06:01 +0800672 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800673 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000674 help
eric miao2c8086a2007-09-11 19:13:17 -0700675 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700676
Russell King788c9702009-04-26 14:21:59 +0100677config ARCH_MSM
678 bool "Qualcomm MSM"
Pavel Machek923a0812010-06-02 11:11:12 -0700679 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800680 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100681 select GENERIC_CLOCKEVENTS
682 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800683 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800684 Support for Qualcomm MSM/QSD based systems. This runs on the
685 apps processor of the MSM/QSD and depends on a shared memory
686 interface to the modem processor which runs the baseband
687 stack and controls some vital subsystems
688 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800689
Magnus Dammc793c1b2010-02-05 11:14:49 +0000690config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900691 bool "Renesas SH-Mobile / R-Mobile"
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900692 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100693 select GENERIC_CLOCKEVENTS
694 select HAVE_CLK
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900695 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000696 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000697 select MIGHT_HAVE_CACHE_L2X0
Magnus Damm60f14352010-12-28 08:26:52 +0000698 select MULTI_IRQ_HANDLER
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400699 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100700 select NO_IOPORT
701 select PM_GENERIC_DOMAINS if PM
702 select SPARSE_IRQ
Magnus Dammc793c1b2010-02-05 11:14:49 +0000703 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900704 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000705
Linus Torvalds1da177e2005-04-16 15:20:36 -0700706config ARCH_RPC
707 bool "RiscPC"
708 select ARCH_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100709 select ARCH_MAY_HAVE_PC_FDC
Russell King07f841b2008-10-01 17:11:06 +0100710 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000711 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100712 select FIQ
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200713 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100714 select HAVE_PATA_PLATFORM
715 select ISA_DMA_API
Rob Herringc334bc12012-03-04 22:03:33 -0600716 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400717 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100718 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700719 help
720 On the Acorn Risc-PC, Linux can support the internal IDE disk and
721 CD-ROM interface, serial and parallel port, and the floppy drive.
722
723config ARCH_SA1100
724 bool "SA1100-based"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100725 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100726 select ARCH_MTD_XIP
Michael Buesch7444a722008-07-25 01:46:11 -0700727 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100728 select ARCH_SPARSEMEM_ENABLE
729 select CLKDEV_LOOKUP
730 select CLKSRC_MMIO
731 select CPU_FREQ
732 select CPU_SA1100
733 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200734 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100735 select ISA
Rob Herring01464222012-08-28 13:06:41 -0500736 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400737 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100738 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000739 help
740 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700741
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900742config ARCH_S3C24XX
743 bool "Samsung S3C24XX SoCs"
Ben Dooks9d56c022009-07-30 23:23:25 +0100744 select ARCH_HAS_CPUFREQ
John Stultz5cfc8ee2010-03-24 00:22:36 +0000745 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100746 select CLKDEV_LOOKUP
747 select GENERIC_GPIO
748 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900749 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900750 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100751 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500752 select NEED_MACH_GPIO_H
Rob Herringc334bc12012-03-04 22:03:33 -0600753 select NEED_MACH_IO_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700754 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900755 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
756 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
757 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
758 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900759
Ben Dooksa08ab632008-10-21 14:06:39 +0100760config ARCH_S3C64XX
761 bool "Samsung S3C64XX"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100762 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900763 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100764 select ARCH_USES_GETTIMEOFFSET
765 select ARM_VIC
766 select CLKDEV_LOOKUP
767 select CPU_V6
768 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900769 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900770 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100771 select HAVE_TCM
Rob Herring01464222012-08-28 13:06:41 -0500772 select NEED_MACH_GPIO_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100773 select NO_IOPORT
774 select PLAT_SAMSUNG
775 select S3C_DEV_NAND
776 select S3C_GPIO_TRACK
777 select SAMSUNG_CLKSRC
778 select SAMSUNG_GPIOLIB_4BIT
779 select SAMSUNG_IRQ_VIC_TIMER
780 select USB_ARCH_HAS_OHCI
Ben Dooksa08ab632008-10-21 14:06:39 +0100781 help
782 Samsung S3C64XX series based systems
783
Kukjin Kim49b7a492010-09-07 15:47:18 +0900784config ARCH_S5P64X0
785 bool "Samsung S5P6440 S5P6450"
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900786 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900787 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100788 select CPU_V6
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900789 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100790 select GENERIC_GPIO
791 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900792 select HAVE_S3C2410_I2C if I2C
Russell Kingb1b3f492012-10-06 17:12:25 +0100793 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim754961a2010-11-13 16:11:46 +0900794 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500795 select NEED_MACH_GPIO_H
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900796 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900797 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
798 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900799
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200800config ARCH_S5PC100
801 bool "Samsung S5PC100"
Russell Kingb1b3f492012-10-06 17:12:25 +0100802 select ARCH_USES_GETTIMEOFFSET
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900803 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900804 select CPU_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100805 select GENERIC_GPIO
806 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900807 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900808 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100809 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500810 select NEED_MACH_GPIO_H
Byungho Min5a7652f2009-06-23 21:39:42 +0900811 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200812 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900813
Kukjin Kim170f4e42010-02-24 16:40:44 +0900814config ARCH_S5PV210
815 bool "Samsung S5PV210/S5PC110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100816 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900817 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100818 select ARCH_SPARSEMEM_ENABLE
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900819 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900820 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100821 select CPU_V7
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900822 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100823 select GENERIC_GPIO
824 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900825 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900826 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100827 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500828 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400829 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900830 help
831 Samsung S5PV210/S5PC110 series based systems
832
Kukjin Kim83014572011-11-06 13:54:56 +0900833config ARCH_EXYNOS
Russell King93e22562012-10-12 14:20:52 +0100834 bool "Samsung EXYNOS"
Russell Kingb1b3f492012-10-06 17:12:25 +0100835 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900836 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100837 select ARCH_SPARSEMEM_ENABLE
838 select CLKDEV_LOOKUP
839 select CPU_V7
840 select GENERIC_CLOCKEVENTS
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900841 select GENERIC_GPIO
842 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900843 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900844 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100845 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500846 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400847 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900848 help
Kukjin Kim83014572011-11-06 13:54:56 +0900849 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900850
Linus Torvalds1da177e2005-04-16 15:20:36 -0700851config ARCH_SHARK
852 bool "Shark"
Russell Kingb1b3f492012-10-06 17:12:25 +0100853 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000854 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100855 select ISA
856 select ISA_DMA
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400857 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100858 select PCI
859 select ZONE_DMA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000860 help
861 Support for the StrongARM based Digital DNARD machine, also known
862 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700863
Linus Walleijd98aac72009-04-27 10:21:46 +0100864config ARCH_U300
865 bool "ST-Ericsson U300 Series"
866 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100867 select ARCH_REQUIRE_GPIOLIB
Linus Walleijd98aac72009-04-27 10:21:46 +0100868 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200869 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100870 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100871 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100872 select CLKSRC_MMIO
Linus Walleij50667d62012-06-19 23:44:25 +0200873 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100874 select CPU_ARM926T
875 select GENERIC_CLOCKEVENTS
Linus Walleijd98aac72009-04-27 10:21:46 +0100876 select GENERIC_GPIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100877 select HAVE_TCM
Linus Walleija4fe2922012-08-13 13:49:45 +0200878 select SPARSE_IRQ
Linus Walleijd98aac72009-04-27 10:21:46 +0100879 help
880 Support for ST-Ericsson U300 series mobile platforms.
881
Russell Kingccf50e22010-03-15 19:03:06 +0000882config ARCH_U8500
883 bool "ST-Ericsson U8500 Series"
Arnd Bergmann67ae14f2012-02-25 12:48:49 -0700884 depends on MMU
Martin Persson7c1a70e2010-12-08 15:13:42 +0100885 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100886 select ARCH_REQUIRE_GPIOLIB
887 select ARM_AMBA
888 select CLKDEV_LOOKUP
889 select CPU_V7
890 select GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +0000891 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000892 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000893 help
894 Support for ST-Ericsson's Ux500 architecture
895
896config ARCH_NOMADIK
897 bool "STMicroelectronics Nomadik"
Russell Kingb1b3f492012-10-06 17:12:25 +0100898 select ARCH_REQUIRE_GPIOLIB
Russell Kingccf50e22010-03-15 19:03:06 +0000899 select ARM_AMBA
900 select ARM_VIC
Linus Walleij4a31bd22012-01-11 13:52:34 +0100901 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100902 select CPU_ARM926T
Russell Kingccf50e22010-03-15 19:03:06 +0000903 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100904 select MIGHT_HAVE_CACHE_L2X0
Arnd Bergmann0fa7be42012-05-15 11:24:34 +0000905 select PINCTRL
Linus Walleij2601ccf2012-08-10 00:43:40 +0200906 select PINCTRL_STN8815
Russell Kingccf50e22010-03-15 19:03:06 +0000907 help
908 Support for the Nomadik platform by ST-Ericsson
909
Russell King93e22562012-10-12 14:20:52 +0100910config PLAT_SPEAR
911 bool "ST SPEAr"
912 select ARCH_REQUIRE_GPIOLIB
913 select ARM_AMBA
914 select CLKDEV_LOOKUP
915 select CLKSRC_MMIO
916 select COMMON_CLK
917 select GENERIC_CLOCKEVENTS
918 select HAVE_CLK
919 help
920 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
921
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100922config ARCH_DAVINCI
923 bool "TI DaVinci"
Russell Kingb1b3f492012-10-06 17:12:25 +0100924 select ARCH_HAS_HOLES_MEMORYMODEL
David Brownelldce11152008-09-07 23:41:04 -0700925 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100926 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700927 select GENERIC_ALLOCATOR
Russell Kingb1b3f492012-10-06 17:12:25 +0100928 select GENERIC_CLOCKEVENTS
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100929 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100930 select HAVE_IDE
Rob Herring01464222012-08-28 13:06:41 -0500931 select NEED_MACH_GPIO_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100932 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100933 help
934 Support for TI's DaVinci platform.
935
Russell King3b938be2007-05-12 11:25:44 +0100936config ARCH_OMAP
937 bool "TI OMAP"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600938 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100939 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100940 select ARCH_HAS_HOLES_MEMORYMODEL
941 select ARCH_REQUIRE_GPIOLIB
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700942 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700943 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100944 select HAVE_CLK
Rob Herring01464222012-08-28 13:06:41 -0500945 select NEED_MACH_GPIO_H
Russell King3b938be2007-05-12 11:25:44 +0100946 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200947 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100948
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100949config ARCH_VT8500
950 bool "VIA/WonderMedia 85xx"
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100951 select ARCH_HAS_CPUFREQ
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100952 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200953 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100954 select COMMON_CLK
955 select CPU_ARM926T
956 select GENERIC_CLOCKEVENTS
957 select GENERIC_GPIO
958 select HAVE_CLK
959 select USE_OF
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100960 help
961 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +0800962
John Linnb85a3ef2011-06-20 11:47:27 -0600963config ARCH_ZYNQ
964 bool "Xilinx Zynq ARM Cortex A9 Platform"
Russell Kingb1b3f492012-10-06 17:12:25 +0100965 select ARM_AMBA
966 select ARM_GIC
967 select CLKDEV_LOOKUP
Binghua Duan02c981c2011-07-08 17:40:12 +0800968 select CPU_V7
Binghua Duan02c981c2011-07-08 17:40:12 +0800969 select GENERIC_CLOCKEVENTS
John Linnb85a3ef2011-06-20 11:47:27 -0600970 select ICST
Dave Martince5ea9f2011-11-29 15:56:19 +0000971 select MIGHT_HAVE_CACHE_L2X0
Binghua Duan02c981c2011-07-08 17:40:12 +0800972 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +0800973 help
John Linnb85a3ef2011-06-20 11:47:27 -0600974 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -0700975endchoice
976
Rob Herring387798b2012-09-06 13:41:12 -0500977menu "Multiple platform selection"
978 depends on ARCH_MULTIPLATFORM
979
980comment "CPU Core family selection"
981
982config ARCH_MULTI_V4
983 bool "ARMv4 based platforms (FA526, StrongARM)"
Rob Herring387798b2012-09-06 13:41:12 -0500984 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100985 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500986
987config ARCH_MULTI_V4T
988 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500989 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100990 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500991
992config ARCH_MULTI_V5
993 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500994 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100995 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500996
997config ARCH_MULTI_V4_V5
998 bool
999
1000config ARCH_MULTI_V6
1001 bool "ARMv6 based platforms (ARM11, Scorpion, ...)"
Rob Herring387798b2012-09-06 13:41:12 -05001002 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +01001003 select CPU_V6
Rob Herring387798b2012-09-06 13:41:12 -05001004
1005config ARCH_MULTI_V7
1006 bool "ARMv7 based platforms (Cortex-A, PJ4, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -05001007 default y
1008 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +01001009 select ARCH_VEXPRESS
1010 select CPU_V7
Rob Herring387798b2012-09-06 13:41:12 -05001011
1012config ARCH_MULTI_V6_V7
1013 bool
1014
1015config ARCH_MULTI_CPU_AUTO
1016 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
1017 select ARCH_MULTI_V5
1018
1019endmenu
1020
Russell Kingccf50e22010-03-15 19:03:06 +00001021#
1022# This is sorted alphabetically by mach-* pathname. However, plat-*
1023# Kconfigs may be included either alphabetically (according to the
1024# plat- suffix) or along side the corresponding mach-* source.
1025#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +02001026source "arch/arm/mach-mvebu/Kconfig"
1027
Russell King95b8f202010-01-14 11:43:54 +00001028source "arch/arm/mach-at91/Kconfig"
1029
Linus Torvalds1da177e2005-04-16 15:20:36 -07001030source "arch/arm/mach-clps711x/Kconfig"
1031
Anton Vorontsovd94f9442010-03-25 17:12:41 +03001032source "arch/arm/mach-cns3xxx/Kconfig"
1033
Russell King95b8f202010-01-14 11:43:54 +00001034source "arch/arm/mach-davinci/Kconfig"
1035
1036source "arch/arm/mach-dove/Kconfig"
1037
Lennert Buytenheke7736d42006-03-20 17:10:13 +00001038source "arch/arm/mach-ep93xx/Kconfig"
1039
Linus Torvalds1da177e2005-04-16 15:20:36 -07001040source "arch/arm/mach-footbridge/Kconfig"
1041
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001042source "arch/arm/mach-gemini/Kconfig"
1043
Russell King95b8f202010-01-14 11:43:54 +00001044source "arch/arm/mach-h720x/Kconfig"
1045
Rob Herring387798b2012-09-06 13:41:12 -05001046source "arch/arm/mach-highbank/Kconfig"
1047
Linus Torvalds1da177e2005-04-16 15:20:36 -07001048source "arch/arm/mach-integrator/Kconfig"
1049
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001050source "arch/arm/mach-iop32x/Kconfig"
1051
1052source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001053
Dan Williams285f5fa2006-12-07 02:59:39 +01001054source "arch/arm/mach-iop13xx/Kconfig"
1055
Linus Torvalds1da177e2005-04-16 15:20:36 -07001056source "arch/arm/mach-ixp4xx/Kconfig"
1057
Russell King95b8f202010-01-14 11:43:54 +00001058source "arch/arm/mach-kirkwood/Kconfig"
1059
1060source "arch/arm/mach-ks8695/Kconfig"
1061
Russell King95b8f202010-01-14 11:43:54 +00001062source "arch/arm/mach-msm/Kconfig"
1063
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001064source "arch/arm/mach-mv78xx0/Kconfig"
1065
Russell King95b8f202010-01-14 11:43:54 +00001066source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001067
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001068source "arch/arm/mach-mxs/Kconfig"
1069
Russell King95b8f202010-01-14 11:43:54 +00001070source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001071
Russell King95b8f202010-01-14 11:43:54 +00001072source "arch/arm/mach-nomadik/Kconfig"
1073source "arch/arm/plat-nomadik/Kconfig"
1074
Tony Lindgrend48af152005-07-10 19:58:17 +01001075source "arch/arm/plat-omap/Kconfig"
1076
1077source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001078
Tony Lindgren1dbae812005-11-10 14:26:51 +00001079source "arch/arm/mach-omap2/Kconfig"
1080
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001081source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001082
Rob Herring387798b2012-09-06 13:41:12 -05001083source "arch/arm/mach-picoxcell/Kconfig"
1084
Russell King95b8f202010-01-14 11:43:54 +00001085source "arch/arm/mach-pxa/Kconfig"
1086source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001087
Russell King95b8f202010-01-14 11:43:54 +00001088source "arch/arm/mach-mmp/Kconfig"
1089
1090source "arch/arm/mach-realview/Kconfig"
1091
1092source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001093
Ben Dookscf383672009-11-10 00:14:58 +00001094source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001095source "arch/arm/plat-s3c24xx/Kconfig"
1096
Rob Herring387798b2012-09-06 13:41:12 -05001097source "arch/arm/mach-socfpga/Kconfig"
1098
viresh kumarcee37e52010-04-01 12:31:05 +01001099source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001100
Kukjin Kim85fd6d62012-02-06 09:38:19 +09001101source "arch/arm/mach-s3c24xx/Kconfig"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001102if ARCH_S3C24XX
Ben Dooksa21765a2007-02-11 18:31:01 +01001103source "arch/arm/mach-s3c2412/Kconfig"
1104source "arch/arm/mach-s3c2440/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001105endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001106
Ben Dooksa08ab632008-10-21 14:06:39 +01001107if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001108source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001109endif
1110
Kukjin Kim49b7a492010-09-07 15:47:18 +09001111source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001112
Byungho Min5a7652f2009-06-23 21:39:42 +09001113source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001114
Kukjin Kim170f4e42010-02-24 16:40:44 +09001115source "arch/arm/mach-s5pv210/Kconfig"
1116
Kukjin Kim83014572011-11-06 13:54:56 +09001117source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001118
Russell King882d01f2010-03-02 23:40:15 +00001119source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001120
Barry Song156a0992012-08-23 13:41:58 +08001121source "arch/arm/mach-prima2/Kconfig"
1122
Erik Gillingc5f80062010-01-21 16:53:02 -08001123source "arch/arm/mach-tegra/Kconfig"
1124
Russell King95b8f202010-01-14 11:43:54 +00001125source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001126
Russell King95b8f202010-01-14 11:43:54 +00001127source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001128
1129source "arch/arm/mach-versatile/Kconfig"
1130
Russell Kingceade892010-02-11 21:44:53 +00001131source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001132source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001133
wanzongshun7ec80dd2008-12-03 03:55:38 +01001134source "arch/arm/mach-w90x900/Kconfig"
1135
Linus Torvalds1da177e2005-04-16 15:20:36 -07001136# Definitions to make life easier
1137config ARCH_ACORN
1138 bool
1139
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001140config PLAT_IOP
1141 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001142 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001143
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001144config PLAT_ORION
1145 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001146 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +01001147 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001148 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +02001149 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001150
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +02001151config PLAT_ORION_LEGACY
1152 bool
1153 select PLAT_ORION
1154
Eric Miaobd5ce432009-01-20 12:06:01 +08001155config PLAT_PXA
1156 bool
1157
Russell Kingf4b8b312010-01-14 12:48:06 +00001158config PLAT_VERSATILE
1159 bool
1160
Russell Kinge3887712010-01-14 13:30:16 +00001161config ARM_TIMER_SP804
1162 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001163 select CLKSRC_MMIO
Rob Herringa7bf6162011-12-12 15:29:08 -06001164 select HAVE_SCHED_CLOCK
Russell Kinge3887712010-01-14 13:30:16 +00001165
Linus Torvalds1da177e2005-04-16 15:20:36 -07001166source arch/arm/mm/Kconfig
1167
Russell King958cab02011-12-11 10:04:00 +00001168config ARM_NR_BANKS
1169 int
1170 default 16 if ARCH_EP93XX
1171 default 8
1172
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001173config IWMMXT
1174 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001175 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1176 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001177 help
1178 Enable support for iWMMXt context switching at run time if
1179 running on a CPU that supports it.
1180
Linus Torvalds1da177e2005-04-16 15:20:36 -07001181config XSCALE_PMU
1182 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001183 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001184 default y
1185
eric miao52108642010-12-13 09:42:34 +01001186config MULTI_IRQ_HANDLER
1187 bool
1188 help
1189 Allow each machine to specify it's own IRQ handler at run time.
1190
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001191if !MMU
1192source "arch/arm/Kconfig-nommu"
1193endif
1194
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001195config ARM_ERRATA_326103
1196 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1197 depends on CPU_V6
1198 help
1199 Executing a SWP instruction to read-only memory does not set bit 11
1200 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1201 treat the access as a read, preventing a COW from occurring and
1202 causing the faulting task to livelock.
1203
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001204config ARM_ERRATA_411920
1205 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001206 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001207 help
1208 Invalidation of the Instruction Cache operation can
1209 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1210 It does not affect the MPCore. This option enables the ARM Ltd.
1211 recommended workaround.
1212
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001213config ARM_ERRATA_430973
1214 bool "ARM errata: Stale prediction on replaced interworking branch"
1215 depends on CPU_V7
1216 help
1217 This option enables the workaround for the 430973 Cortex-A8
1218 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1219 interworking branch is replaced with another code sequence at the
1220 same virtual address, whether due to self-modifying code or virtual
1221 to physical address re-mapping, Cortex-A8 does not recover from the
1222 stale interworking branch prediction. This results in Cortex-A8
1223 executing the new code sequence in the incorrect ARM or Thumb state.
1224 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1225 and also flushes the branch target cache at every context switch.
1226 Note that setting specific bits in the ACTLR register may not be
1227 available in non-secure mode.
1228
Catalin Marinas855c5512009-04-30 17:06:15 +01001229config ARM_ERRATA_458693
1230 bool "ARM errata: Processor deadlock when a false hazard is created"
1231 depends on CPU_V7
1232 help
1233 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1234 erratum. For very specific sequences of memory operations, it is
1235 possible for a hazard condition intended for a cache line to instead
1236 be incorrectly associated with a different cache line. This false
1237 hazard might then cause a processor deadlock. The workaround enables
1238 the L1 caching of the NEON accesses and disables the PLD instruction
1239 in the ACTLR register. Note that setting specific bits in the ACTLR
1240 register may not be available in non-secure mode.
1241
Catalin Marinas0516e462009-04-30 17:06:20 +01001242config ARM_ERRATA_460075
1243 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1244 depends on CPU_V7
1245 help
1246 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1247 erratum. Any asynchronous access to the L2 cache may encounter a
1248 situation in which recent store transactions to the L2 cache are lost
1249 and overwritten with stale memory contents from external memory. The
1250 workaround disables the write-allocate mode for the L2 cache via the
1251 ACTLR register. Note that setting specific bits in the ACTLR register
1252 may not be available in non-secure mode.
1253
Will Deacon9f050272010-09-14 09:51:43 +01001254config ARM_ERRATA_742230
1255 bool "ARM errata: DMB operation may be faulty"
1256 depends on CPU_V7 && SMP
1257 help
1258 This option enables the workaround for the 742230 Cortex-A9
1259 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1260 between two write operations may not ensure the correct visibility
1261 ordering of the two writes. This workaround sets a specific bit in
1262 the diagnostic register of the Cortex-A9 which causes the DMB
1263 instruction to behave as a DSB, ensuring the correct behaviour of
1264 the two writes.
1265
Will Deacona672e992010-09-14 09:53:02 +01001266config ARM_ERRATA_742231
1267 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1268 depends on CPU_V7 && SMP
1269 help
1270 This option enables the workaround for the 742231 Cortex-A9
1271 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1272 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1273 accessing some data located in the same cache line, may get corrupted
1274 data due to bad handling of the address hazard when the line gets
1275 replaced from one of the CPUs at the same time as another CPU is
1276 accessing it. This workaround sets specific bits in the diagnostic
1277 register of the Cortex-A9 which reduces the linefill issuing
1278 capabilities of the processor.
1279
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001280config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001281 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001282 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001283 help
1284 The PL310 L2 cache controller implements three types of Clean &
1285 Invalidate maintenance operations: by Physical Address
1286 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1287 They are architecturally defined to behave as the execution of a
1288 clean operation followed immediately by an invalidate operation,
1289 both performing to the same memory location. This functionality
1290 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001291 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001292
1293config ARM_ERRATA_720789
1294 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001295 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001296 help
1297 This option enables the workaround for the 720789 Cortex-A9 (prior to
1298 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1299 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1300 As a consequence of this erratum, some TLB entries which should be
1301 invalidated are not, resulting in an incoherency in the system page
1302 tables. The workaround changes the TLB flushing routines to invalidate
1303 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001304
Russell King1f0090a2011-03-16 23:35:25 +00001305config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001306 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001307 depends on CACHE_L2X0
1308 help
1309 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1310 operation (offset 0x7FC). This operation runs in background so that
1311 PL310 can handle normal accesses while it is in progress. Under very
1312 rare circumstances, due to this erratum, write data can be lost when
1313 PL310 treats a cacheable write transaction during a Clean &
1314 Invalidate by Way operation.
1315
Will Deacon475d92f2010-09-28 14:02:02 +01001316config ARM_ERRATA_743622
1317 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1318 depends on CPU_V7
1319 help
1320 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001321 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001322 optimisation in the Cortex-A9 Store Buffer may lead to data
1323 corruption. This workaround sets a specific bit in the diagnostic
1324 register of the Cortex-A9 which disables the Store Buffer
1325 optimisation, preventing the defect from occurring. This has no
1326 visible impact on the overall performance or power consumption of the
1327 processor.
1328
Will Deacon9a27c272011-02-18 16:36:35 +01001329config ARM_ERRATA_751472
1330 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001331 depends on CPU_V7
Will Deacon9a27c272011-02-18 16:36:35 +01001332 help
1333 This option enables the workaround for the 751472 Cortex-A9 (prior
1334 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1335 completion of a following broadcasted operation if the second
1336 operation is received by a CPU before the ICIALLUIS has completed,
1337 potentially leading to corrupted entries in the cache or TLB.
1338
Will Deaconfa0ce402011-11-14 17:24:57 +01001339config PL310_ERRATA_753970
1340 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001341 depends on CACHE_PL310
1342 help
1343 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1344
1345 Under some condition the effect of cache sync operation on
1346 the store buffer still remains when the operation completes.
1347 This means that the store buffer is always asked to drain and
1348 this prevents it from merging any further writes. The workaround
1349 is to replace the normal offset of cache sync operation (0x730)
1350 by another offset targeting an unmapped PL310 register 0x740.
1351 This has the same effect as the cache sync operation: store buffer
1352 drain and waiting for all buffers empty.
1353
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001354config ARM_ERRATA_754322
1355 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1356 depends on CPU_V7
1357 help
1358 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1359 r3p*) erratum. A speculative memory access may cause a page table walk
1360 which starts prior to an ASID switch but completes afterwards. This
1361 can populate the micro-TLB with a stale entry which may be hit with
1362 the new ASID. This workaround places two dsb instructions in the mm
1363 switching code so that no page table walks can cross the ASID switch.
1364
Will Deacon5dab26af2011-03-04 12:38:54 +01001365config ARM_ERRATA_754327
1366 bool "ARM errata: no automatic Store Buffer drain"
1367 depends on CPU_V7 && SMP
1368 help
1369 This option enables the workaround for the 754327 Cortex-A9 (prior to
1370 r2p0) erratum. The Store Buffer does not have any automatic draining
1371 mechanism and therefore a livelock may occur if an external agent
1372 continuously polls a memory location waiting to observe an update.
1373 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1374 written polling loops from denying visibility of updates to memory.
1375
Catalin Marinas145e10e2011-08-15 11:04:41 +01001376config ARM_ERRATA_364296
1377 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1378 depends on CPU_V6 && !SMP
1379 help
1380 This options enables the workaround for the 364296 ARM1136
1381 r0p2 erratum (possible cache data corruption with
1382 hit-under-miss enabled). It sets the undocumented bit 31 in
1383 the auxiliary control register and the FI bit in the control
1384 register, thus disabling hit-under-miss without putting the
1385 processor into full low interrupt latency mode. ARM11MPCore
1386 is not affected.
1387
Will Deaconf630c1b2011-09-15 11:45:15 +01001388config ARM_ERRATA_764369
1389 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1390 depends on CPU_V7 && SMP
1391 help
1392 This option enables the workaround for erratum 764369
1393 affecting Cortex-A9 MPCore with two or more processors (all
1394 current revisions). Under certain timing circumstances, a data
1395 cache line maintenance operation by MVA targeting an Inner
1396 Shareable memory region may fail to proceed up to either the
1397 Point of Coherency or to the Point of Unification of the
1398 system. This workaround adds a DSB instruction before the
1399 relevant cache maintenance functions and sets a specific bit
1400 in the diagnostic control register of the SCU.
1401
Will Deacon11ed0ba2011-11-14 17:24:58 +01001402config PL310_ERRATA_769419
1403 bool "PL310 errata: no automatic Store Buffer drain"
1404 depends on CACHE_L2X0
1405 help
1406 On revisions of the PL310 prior to r3p2, the Store Buffer does
1407 not automatically drain. This can cause normal, non-cacheable
1408 writes to be retained when the memory system is idle, leading
1409 to suboptimal I/O performance for drivers using coherent DMA.
1410 This option adds a write barrier to the cpu_idle loop so that,
1411 on systems with an outer cache, the store buffer is drained
1412 explicitly.
1413
Simon Horman7253b852012-09-28 02:12:45 +01001414config ARM_ERRATA_775420
1415 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1416 depends on CPU_V7
1417 help
1418 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1419 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1420 operation aborts with MMU exception, it might cause the processor
1421 to deadlock. This workaround puts DSB before executing ISB if
1422 an abort may occur on cache maintenance.
1423
Linus Torvalds1da177e2005-04-16 15:20:36 -07001424endmenu
1425
1426source "arch/arm/common/Kconfig"
1427
Linus Torvalds1da177e2005-04-16 15:20:36 -07001428menu "Bus support"
1429
1430config ARM_AMBA
1431 bool
1432
1433config ISA
1434 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001435 help
1436 Find out whether you have ISA slots on your motherboard. ISA is the
1437 name of a bus system, i.e. the way the CPU talks to the other stuff
1438 inside your box. Other bus systems are PCI, EISA, MicroChannel
1439 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1440 newer boards don't support it. If you have ISA, say Y, otherwise N.
1441
Russell King065909b2006-01-04 15:44:16 +00001442# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001443config ISA_DMA
1444 bool
Russell King065909b2006-01-04 15:44:16 +00001445 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001446
Russell King065909b2006-01-04 15:44:16 +00001447# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001448config ISA_DMA_API
1449 bool
Al Viro5cae8412005-05-04 05:39:22 +01001450
Linus Torvalds1da177e2005-04-16 15:20:36 -07001451config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001452 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001453 help
1454 Find out whether you have a PCI motherboard. PCI is the name of a
1455 bus system, i.e. the way the CPU talks to the other stuff inside
1456 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1457 VESA. If you have PCI, say Y, otherwise N.
1458
Anton Vorontsov52882172010-04-19 13:20:49 +01001459config PCI_DOMAINS
1460 bool
1461 depends on PCI
1462
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001463config PCI_NANOENGINE
1464 bool "BSE nanoEngine PCI support"
1465 depends on SA1100_NANOENGINE
1466 help
1467 Enable PCI on the BSE nanoEngine board.
1468
Matthew Wilcox36e23592007-07-10 10:54:40 -06001469config PCI_SYSCALL
1470 def_bool PCI
1471
Linus Torvalds1da177e2005-04-16 15:20:36 -07001472# Select the host bridge type
1473config PCI_HOST_VIA82C505
1474 bool
1475 depends on PCI && ARCH_SHARK
1476 default y
1477
Mike Rapoporta0113a92007-11-25 08:55:34 +01001478config PCI_HOST_ITE8152
1479 bool
1480 depends on PCI && MACH_ARMCORE
1481 default y
1482 select DMABOUNCE
1483
Linus Torvalds1da177e2005-04-16 15:20:36 -07001484source "drivers/pci/Kconfig"
1485
1486source "drivers/pcmcia/Kconfig"
1487
1488endmenu
1489
1490menu "Kernel Features"
1491
Dave Martin3b556582011-12-07 15:38:04 +00001492config HAVE_SMP
1493 bool
1494 help
1495 This option should be selected by machines which have an SMP-
1496 capable CPU.
1497
1498 The only effect of this option is to make the SMP-related
1499 options available to the user for configuration.
1500
Linus Torvalds1da177e2005-04-16 15:20:36 -07001501config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001502 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001503 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001504 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001505 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001506 depends on MMU
Daniel Walker89c3ded2010-11-22 12:35:41 -08001507 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Russell Kingb1b3f492012-10-06 17:12:25 +01001508 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001509 help
1510 This enables support for systems with more than one CPU. If you have
1511 a system with only one CPU, like most personal computers, say N. If
1512 you have a system with more than one CPU, say Y.
1513
1514 If you say N here, the kernel will run on single and multiprocessor
1515 machines, but will use only one CPU of a multiprocessor machine. If
1516 you say Y here, the kernel will run on many, but not all, single
1517 processor machines. On a single processor machine, the kernel will
1518 run faster if you say N here.
1519
Paul Bolle395cf962011-08-15 02:02:26 +02001520 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001521 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001522 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001523
1524 If you don't know what to do here, say N.
1525
Russell Kingf00ec482010-09-04 10:47:48 +01001526config SMP_ON_UP
1527 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1528 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001529 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001530 default y
1531 help
1532 SMP kernels contain instructions which fail on non-SMP processors.
1533 Enabling this option allows the kernel to modify itself to make
1534 these instructions safe. Disabling it allows about 1K of space
1535 savings.
1536
1537 If you don't know what to do here, say Y.
1538
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001539config ARM_CPU_TOPOLOGY
1540 bool "Support cpu topology definition"
1541 depends on SMP && CPU_V7
1542 default y
1543 help
1544 Support ARM cpu topology definition. The MPIDR register defines
1545 affinity between processors which is then used to describe the cpu
1546 topology of an ARM System.
1547
1548config SCHED_MC
1549 bool "Multi-core scheduler support"
1550 depends on ARM_CPU_TOPOLOGY
1551 help
1552 Multi-core scheduler support improves the CPU scheduler's decision
1553 making when dealing with multi-core CPU chips at a cost of slightly
1554 increased overhead in some places. If unsure say N here.
1555
1556config SCHED_SMT
1557 bool "SMT scheduler support"
1558 depends on ARM_CPU_TOPOLOGY
1559 help
1560 Improves the CPU scheduler's decision making when dealing with
1561 MultiThreading at a cost of slightly increased overhead in some
1562 places. If unsure say N here.
1563
Russell Kinga8cbcd92009-05-16 11:51:14 +01001564config HAVE_ARM_SCU
1565 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001566 help
1567 This option enables support for the ARM system coherency unit
1568
Marc Zyngier022c03a2012-01-11 17:25:17 +00001569config ARM_ARCH_TIMER
1570 bool "Architected timer support"
1571 depends on CPU_V7
1572 help
1573 This option enables support for the ARM architected timer
1574
Russell Kingf32f4ce2009-05-16 12:14:21 +01001575config HAVE_ARM_TWD
1576 bool
1577 depends on SMP
1578 help
1579 This options enables support for the ARM timer and watchdog unit
1580
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001581choice
1582 prompt "Memory split"
1583 default VMSPLIT_3G
1584 help
1585 Select the desired split between kernel and user memory.
1586
1587 If you are not absolutely sure what you are doing, leave this
1588 option alone!
1589
1590 config VMSPLIT_3G
1591 bool "3G/1G user/kernel split"
1592 config VMSPLIT_2G
1593 bool "2G/2G user/kernel split"
1594 config VMSPLIT_1G
1595 bool "1G/3G user/kernel split"
1596endchoice
1597
1598config PAGE_OFFSET
1599 hex
1600 default 0x40000000 if VMSPLIT_1G
1601 default 0x80000000 if VMSPLIT_2G
1602 default 0xC0000000
1603
Linus Torvalds1da177e2005-04-16 15:20:36 -07001604config NR_CPUS
1605 int "Maximum number of CPUs (2-32)"
1606 range 2 32
1607 depends on SMP
1608 default "4"
1609
Russell Kinga054a812005-11-02 22:24:33 +00001610config HOTPLUG_CPU
1611 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1612 depends on SMP && HOTPLUG && EXPERIMENTAL
1613 help
1614 Say Y here to experiment with turning CPUs off and on. CPUs
1615 can be controlled through /sys/devices/system/cpu.
1616
Russell King37ee16a2005-11-08 19:08:05 +00001617config LOCAL_TIMERS
1618 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001619 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001620 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001621 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001622 help
1623 Enable support for local timers on SMP platforms, rather then the
1624 legacy IPI broadcast method. Local timers allows the system
1625 accounting to be spread across the timer interval, preventing a
1626 "thundering herd" at every timer tick.
1627
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001628config ARCH_NR_GPIO
1629 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001630 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Philippe Langlais70227a42012-02-13 10:51:22 +01001631 default 355 if ARCH_U8500
Paul Parsons9a01ec32012-02-27 01:58:45 +00001632 default 264 if MACH_H4700
Tarun Kanti DebBarma39f47d92012-04-26 18:31:17 +05301633 default 512 if SOC_OMAP5
Tony Priske9a91de2012-08-03 21:00:06 +12001634 default 288 if ARCH_VT8500
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001635 default 0
1636 help
1637 Maximum number of GPIOs in the system.
1638
1639 If unsure, leave the default value.
1640
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001641source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001642
Russell Kingf8065812006-03-02 22:41:59 +00001643config HZ
1644 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001645 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001646 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001647 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001648 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001649 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001650 default 100
1651
Catalin Marinas16c79652009-07-24 12:33:02 +01001652config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001653 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001654 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001655 select AEABI
1656 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001657 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001658 help
1659 By enabling this option, the kernel will be compiled in
1660 Thumb-2 mode. A compiler/assembler that understand the unified
1661 ARM-Thumb syntax is needed.
1662
1663 If unsure, say N.
1664
Dave Martin6f685c52011-03-03 11:41:12 +01001665config THUMB2_AVOID_R_ARM_THM_JUMP11
1666 bool "Work around buggy Thumb-2 short branch relocations in gas"
1667 depends on THUMB2_KERNEL && MODULES
1668 default y
1669 help
1670 Various binutils versions can resolve Thumb-2 branches to
1671 locally-defined, preemptible global symbols as short-range "b.n"
1672 branch instructions.
1673
1674 This is a problem, because there's no guarantee the final
1675 destination of the symbol, or any candidate locations for a
1676 trampoline, are within range of the branch. For this reason, the
1677 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1678 relocation in modules at all, and it makes little sense to add
1679 support.
1680
1681 The symptom is that the kernel fails with an "unsupported
1682 relocation" error when loading some modules.
1683
1684 Until fixed tools are available, passing
1685 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1686 code which hits this problem, at the cost of a bit of extra runtime
1687 stack usage in some cases.
1688
1689 The problem is described in more detail at:
1690 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1691
1692 Only Thumb-2 kernels are affected.
1693
1694 Unless you are sure your tools don't have this problem, say Y.
1695
Catalin Marinas0becb082009-07-24 12:32:53 +01001696config ARM_ASM_UNIFIED
1697 bool
1698
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001699config AEABI
1700 bool "Use the ARM EABI to compile the kernel"
1701 help
1702 This option allows for the kernel to be compiled using the latest
1703 ARM ABI (aka EABI). This is only useful if you are using a user
1704 space environment that is also compiled with EABI.
1705
1706 Since there are major incompatibilities between the legacy ABI and
1707 EABI, especially with regard to structure member alignment, this
1708 option also changes the kernel syscall calling convention to
1709 disambiguate both ABIs and allow for backward compatibility support
1710 (selected with CONFIG_OABI_COMPAT).
1711
1712 To use this you need GCC version 4.0.0 or later.
1713
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001714config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001715 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001716 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001717 default y
1718 help
1719 This option preserves the old syscall interface along with the
1720 new (ARM EABI) one. It also provides a compatibility layer to
1721 intercept syscalls that have structure arguments which layout
1722 in memory differs between the legacy ABI and the new ARM EABI
1723 (only for non "thumb" binaries). This option adds a tiny
1724 overhead to all syscalls and produces a slightly larger kernel.
1725 If you know you'll be using only pure EABI user space then you
1726 can say N here. If this option is not selected and you attempt
1727 to execute a legacy ABI binary then the result will be
1728 UNPREDICTABLE (in fact it can be predicted that it won't work
1729 at all). If in doubt say Y.
1730
Mel Gormaneb335752009-05-13 17:34:48 +01001731config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001732 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001733
Russell King05944d72006-11-30 20:43:51 +00001734config ARCH_SPARSEMEM_ENABLE
1735 bool
1736
Russell King07a2f732008-10-01 21:39:58 +01001737config ARCH_SPARSEMEM_DEFAULT
1738 def_bool ARCH_SPARSEMEM_ENABLE
1739
Russell King05944d72006-11-30 20:43:51 +00001740config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001741 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001742
Will Deacon7b7bf492011-05-19 13:21:14 +01001743config HAVE_ARCH_PFN_VALID
1744 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1745
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001746config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001747 bool "High Memory Support"
1748 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001749 help
1750 The address space of ARM processors is only 4 Gigabytes large
1751 and it has to accommodate user address space, kernel address
1752 space as well as some memory mapped IO. That means that, if you
1753 have a large amount of physical memory and/or IO, not all of the
1754 memory can be "permanently mapped" by the kernel. The physical
1755 memory that is not permanently mapped is called "high memory".
1756
1757 Depending on the selected kernel/user memory split, minimum
1758 vmalloc space and actual amount of RAM, you may not need this
1759 option which should result in a slightly faster kernel.
1760
1761 If unsure, say n.
1762
Russell King65cec8e2009-08-17 20:02:06 +01001763config HIGHPTE
1764 bool "Allocate 2nd-level pagetables from highmem"
1765 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001766
Jamie Iles1b8873a2010-02-02 20:25:44 +01001767config HW_PERF_EVENTS
1768 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001769 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001770 default y
1771 help
1772 Enable hardware performance counter support for perf events. If
1773 disabled, perf events will use software events only.
1774
Dave Hansen3f22ab22005-06-23 00:07:43 -07001775source "mm/Kconfig"
1776
Magnus Dammc1b2d972010-07-05 10:00:11 +01001777config FORCE_MAX_ZONEORDER
1778 int "Maximum zone order" if ARCH_SHMOBILE
1779 range 11 64 if ARCH_SHMOBILE
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001780 default "12" if SOC_AM33XX
Magnus Dammc1b2d972010-07-05 10:00:11 +01001781 default "9" if SA1111
1782 default "11"
1783 help
1784 The kernel memory allocator divides physically contiguous memory
1785 blocks into "zones", where each zone is a power of two number of
1786 pages. This option selects the largest power of two that the kernel
1787 keeps in the memory allocator. If you need to allocate very large
1788 blocks of physically contiguous memory, then you may need to
1789 increase this value.
1790
1791 This config option is actually maximum order plus one. For example,
1792 a value of 11 means that the largest free memory block is 2^10 pages.
1793
Linus Torvalds1da177e2005-04-16 15:20:36 -07001794config ALIGNMENT_TRAP
1795 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001796 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001797 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001798 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001799 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001800 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001801 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1802 address divisible by 4. On 32-bit ARM processors, these non-aligned
1803 fetch/store instructions will be emulated in software if you say
1804 here, which has a severe performance impact. This is necessary for
1805 correct operation of some network protocols. With an IP-only
1806 configuration it is safe to say N, otherwise say Y.
1807
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001808config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001809 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1810 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001811 default y if CPU_FEROCEON
1812 help
1813 Implement faster copy_to_user and clear_user methods for CPU
1814 cores where a 8-word STM instruction give significantly higher
1815 memory write throughput than a sequence of individual 32bit stores.
1816
1817 A possible side effect is a slight increase in scheduling latency
1818 between threads sharing the same address space if they invoke
1819 such copy operations with large buffers.
1820
1821 However, if the CPU data cache is using a write-allocate mode,
1822 this option is unlikely to provide any performance gain.
1823
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001824config SECCOMP
1825 bool
1826 prompt "Enable seccomp to safely compute untrusted bytecode"
1827 ---help---
1828 This kernel feature is useful for number crunching applications
1829 that may need to compute untrusted bytecode during their
1830 execution. By using pipes or other transports made available to
1831 the process as file descriptors supporting the read/write
1832 syscalls, it's possible to isolate those applications in
1833 their own address space using seccomp. Once seccomp is
1834 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1835 and the task is only allowed to execute a few safe syscalls
1836 defined by each seccomp mode.
1837
Nicolas Pitrec743f382010-05-24 23:55:42 -04001838config CC_STACKPROTECTOR
1839 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001840 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001841 help
1842 This option turns on the -fstack-protector GCC feature. This
1843 feature puts, at the beginning of functions, a canary value on
1844 the stack just before the return address, and validates
1845 the value just before actually returning. Stack based buffer
1846 overflows (that need to overwrite this return address) now also
1847 overwrite the canary, which gets detected and the attack is then
1848 neutralized via a kernel panic.
1849 This feature requires gcc version 4.2 or above.
1850
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001851config XEN_DOM0
1852 def_bool y
1853 depends on XEN
1854
1855config XEN
1856 bool "Xen guest support on ARM (EXPERIMENTAL)"
1857 depends on EXPERIMENTAL && ARM && OF
1858 help
1859 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1860
Linus Torvalds1da177e2005-04-16 15:20:36 -07001861endmenu
1862
1863menu "Boot options"
1864
Grant Likely9eb8f672011-04-28 14:27:20 -06001865config USE_OF
1866 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001867 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001868 select OF
1869 select OF_EARLY_FLATTREE
1870 help
1871 Include support for flattened device tree machine descriptions.
1872
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001873config ATAGS
1874 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1875 default y
1876 help
1877 This is the traditional way of passing data to the kernel at boot
1878 time. If you are solely relying on the flattened device tree (or
1879 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1880 to remove ATAGS support from your kernel binary. If unsure,
1881 leave this to y.
1882
1883config DEPRECATED_PARAM_STRUCT
1884 bool "Provide old way to pass kernel parameters"
1885 depends on ATAGS
1886 help
1887 This was deprecated in 2001 and announced to live on for 5 years.
1888 Some old boot loaders still use this way.
1889
Linus Torvalds1da177e2005-04-16 15:20:36 -07001890# Compressed boot loader in ROM. Yes, we really want to ask about
1891# TEXT and BSS so we preserve their values in the config files.
1892config ZBOOT_ROM_TEXT
1893 hex "Compressed ROM boot loader base address"
1894 default "0"
1895 help
1896 The physical address at which the ROM-able zImage is to be
1897 placed in the target. Platforms which normally make use of
1898 ROM-able zImage formats normally set this to a suitable
1899 value in their defconfig file.
1900
1901 If ZBOOT_ROM is not enabled, this has no effect.
1902
1903config ZBOOT_ROM_BSS
1904 hex "Compressed ROM boot loader BSS address"
1905 default "0"
1906 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001907 The base address of an area of read/write memory in the target
1908 for the ROM-able zImage which must be available while the
1909 decompressor is running. It must be large enough to hold the
1910 entire decompressed kernel plus an additional 128 KiB.
1911 Platforms which normally make use of ROM-able zImage formats
1912 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001913
1914 If ZBOOT_ROM is not enabled, this has no effect.
1915
1916config ZBOOT_ROM
1917 bool "Compressed boot loader in ROM/flash"
1918 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1919 help
1920 Say Y here if you intend to execute your compressed kernel image
1921 (zImage) directly from ROM or flash. If unsure, say N.
1922
Simon Horman090ab3f2011-04-26 06:29:53 +01001923choice
1924 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1925 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1926 default ZBOOT_ROM_NONE
1927 help
1928 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001929 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001930 kernel image to an MMC or SD card and boot the kernel straight
1931 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001932 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001933 rest the kernel image to RAM.
1934
1935config ZBOOT_ROM_NONE
1936 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1937 help
1938 Do not load image from SD or MMC
1939
Simon Hormanf45b1142011-01-11 04:01:08 +01001940config ZBOOT_ROM_MMCIF
1941 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001942 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001943 Load image from MMCIF hardware block.
1944
1945config ZBOOT_ROM_SH_MOBILE_SDHI
1946 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1947 help
1948 Load image from SDHI hardware block
1949
1950endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001951
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001952config ARM_APPENDED_DTB
1953 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1954 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1955 help
1956 With this option, the boot code will look for a device tree binary
1957 (DTB) appended to zImage
1958 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1959
1960 This is meant as a backward compatibility convenience for those
1961 systems with a bootloader that can't be upgraded to accommodate
1962 the documented boot protocol using a device tree.
1963
1964 Beware that there is very little in terms of protection against
1965 this option being confused by leftover garbage in memory that might
1966 look like a DTB header after a reboot if no actual DTB is appended
1967 to zImage. Do not leave this option active in a production kernel
1968 if you don't intend to always append a DTB. Proper passing of the
1969 location into r2 of a bootloader provided DTB is always preferable
1970 to this option.
1971
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001972config ARM_ATAG_DTB_COMPAT
1973 bool "Supplement the appended DTB with traditional ATAG information"
1974 depends on ARM_APPENDED_DTB
1975 help
1976 Some old bootloaders can't be updated to a DTB capable one, yet
1977 they provide ATAGs with memory configuration, the ramdisk address,
1978 the kernel cmdline string, etc. Such information is dynamically
1979 provided by the bootloader and can't always be stored in a static
1980 DTB. To allow a device tree enabled kernel to be used with such
1981 bootloaders, this option allows zImage to extract the information
1982 from the ATAG list and store it at run time into the appended DTB.
1983
Genoud Richardd0f34a112012-06-26 16:37:59 +01001984choice
1985 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
1986 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1987
1988config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1989 bool "Use bootloader kernel arguments if available"
1990 help
1991 Uses the command-line options passed by the boot loader instead of
1992 the device tree bootargs property. If the boot loader doesn't provide
1993 any, the device tree bootargs property will be used.
1994
1995config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
1996 bool "Extend with bootloader kernel arguments"
1997 help
1998 The command-line arguments provided by the boot loader will be
1999 appended to the the device tree bootargs property.
2000
2001endchoice
2002
Linus Torvalds1da177e2005-04-16 15:20:36 -07002003config CMDLINE
2004 string "Default kernel command string"
2005 default ""
2006 help
2007 On some architectures (EBSA110 and CATS), there is currently no way
2008 for the boot loader to pass arguments to the kernel. For these
2009 architectures, you should supply some command-line options at build
2010 time by entering them here. As a minimum, you should specify the
2011 memory size and the root device (e.g., mem=64M root=/dev/nfs).
2012
Victor Boivie4394c122011-05-04 17:07:55 +01002013choice
2014 prompt "Kernel command line type" if CMDLINE != ""
2015 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002016 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01002017
2018config CMDLINE_FROM_BOOTLOADER
2019 bool "Use bootloader kernel arguments if available"
2020 help
2021 Uses the command-line options passed by the boot loader. If
2022 the boot loader doesn't provide any, the default kernel command
2023 string provided in CMDLINE will be used.
2024
2025config CMDLINE_EXTEND
2026 bool "Extend bootloader kernel arguments"
2027 help
2028 The command-line arguments provided by the boot loader will be
2029 appended to the default kernel command string.
2030
Alexander Holler92d20402010-02-16 19:04:53 +01002031config CMDLINE_FORCE
2032 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01002033 help
2034 Always use the default kernel command string, even if the boot
2035 loader passes other arguments to the kernel.
2036 This is useful if you cannot or don't want to change the
2037 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01002038endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002039
Linus Torvalds1da177e2005-04-16 15:20:36 -07002040config XIP_KERNEL
2041 bool "Kernel Execute-In-Place from ROM"
Rob Herring387798b2012-09-06 13:41:12 -05002042 depends on !ZBOOT_ROM && !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07002043 help
2044 Execute-In-Place allows the kernel to run from non-volatile storage
2045 directly addressable by the CPU, such as NOR flash. This saves RAM
2046 space since the text section of the kernel is not loaded from flash
2047 to RAM. Read-write sections, such as the data section and stack,
2048 are still copied to RAM. The XIP kernel is not compressed since
2049 it has to run directly from flash, so it will take more space to
2050 store it. The flash address used to link the kernel object files,
2051 and for storing it, is configuration dependent. Therefore, if you
2052 say Y here, you must know the proper physical address where to
2053 store the kernel image depending on your own flash memory usage.
2054
2055 Also note that the make target becomes "make xipImage" rather than
2056 "make zImage" or "make Image". The final kernel binary to put in
2057 ROM memory will be arch/arm/boot/xipImage.
2058
2059 If unsure, say N.
2060
2061config XIP_PHYS_ADDR
2062 hex "XIP Kernel Physical Location"
2063 depends on XIP_KERNEL
2064 default "0x00080000"
2065 help
2066 This is the physical address in your flash memory the kernel will
2067 be linked for and stored to. This address is dependent on your
2068 own flash usage.
2069
Richard Purdiec587e4a2007-02-06 21:29:00 +01002070config KEXEC
2071 bool "Kexec system call (EXPERIMENTAL)"
Will Deacon02b73e22011-06-06 15:49:23 +01002072 depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002073 help
2074 kexec is a system call that implements the ability to shutdown your
2075 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002076 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002077 you can start any kernel with it, not just Linux.
2078
2079 It is an ongoing process to be certain the hardware in a machine
2080 is properly shutdown, so do not be surprised if this code does not
2081 initially work for you. It may help to enable device hotplugging
2082 support.
2083
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002084config ATAGS_PROC
2085 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002086 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01002087 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002088 help
2089 Should the atags used to boot the kernel be exported in an "atags"
2090 file in procfs. Useful with kexec.
2091
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002092config CRASH_DUMP
2093 bool "Build kdump crash kernel (EXPERIMENTAL)"
2094 depends on EXPERIMENTAL
2095 help
2096 Generate crash dump after being started by kexec. This should
2097 be normally only set in special crash dump kernels which are
2098 loaded in the main kernel with kexec-tools into a specially
2099 reserved region and then later executed after a crash by
2100 kdump/kexec. The crash dump kernel must be compiled to a
2101 memory address not used by the main kernel
2102
2103 For more details see Documentation/kdump/kdump.txt
2104
Eric Miaoe69edc792010-07-05 15:56:50 +02002105config AUTO_ZRELADDR
2106 bool "Auto calculation of the decompressed kernel image address"
2107 depends on !ZBOOT_ROM && !ARCH_U300
2108 help
2109 ZRELADDR is the physical address where the decompressed kernel
2110 image will be placed. If AUTO_ZRELADDR is selected, the address
2111 will be determined at run-time by masking the current IP with
2112 0xf8000000. This assumes the zImage being placed in the first 128MB
2113 from start of memory.
2114
Linus Torvalds1da177e2005-04-16 15:20:36 -07002115endmenu
2116
Russell Kingac9d7ef2008-08-18 17:26:00 +01002117menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002118
Ben Dooks89c52ed2009-07-30 23:23:24 +01002119if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002120
2121source "drivers/cpufreq/Kconfig"
2122
Yong Shen64f102b2010-10-21 21:18:59 +08002123config CPU_FREQ_IMX
2124 tristate "CPUfreq driver for i.MX CPUs"
2125 depends on ARCH_MXC && CPU_FREQ
Arnd Bergmannf637c4c2012-08-16 10:40:40 +00002126 select CPU_FREQ_TABLE
Yong Shen64f102b2010-10-21 21:18:59 +08002127 help
2128 This enables the CPUfreq driver for i.MX CPUs.
2129
Linus Torvalds1da177e2005-04-16 15:20:36 -07002130config CPU_FREQ_SA1100
2131 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002132
2133config CPU_FREQ_SA1110
2134 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002135
2136config CPU_FREQ_INTEGRATOR
2137 tristate "CPUfreq driver for ARM Integrator CPUs"
2138 depends on ARCH_INTEGRATOR && CPU_FREQ
2139 default y
2140 help
2141 This enables the CPUfreq driver for ARM Integrator CPUs.
2142
2143 For details, take a look at <file:Documentation/cpu-freq>.
2144
2145 If in doubt, say Y.
2146
Russell King9e2697f2007-12-14 13:30:14 +00002147config CPU_FREQ_PXA
2148 bool
2149 depends on CPU_FREQ && ARCH_PXA && PXA25x
2150 default y
2151 select CPU_FREQ_DEFAULT_GOV_USERSPACE
Russell Kingb1b3f492012-10-06 17:12:25 +01002152 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002153
Ben Dooks9d56c022009-07-30 23:23:25 +01002154config CPU_FREQ_S3C
2155 bool
2156 help
2157 Internal configuration node for common cpufreq on Samsung SoC
2158
2159config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002160 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09002161 depends on ARCH_S3C24XX && CPU_FREQ && EXPERIMENTAL
Ben Dooks9d56c022009-07-30 23:23:25 +01002162 select CPU_FREQ_S3C
2163 help
2164 This enables the CPUfreq driver for the Samsung S3C24XX family
2165 of CPUs.
2166
2167 For details, take a look at <file:Documentation/cpu-freq>.
2168
2169 If in doubt, say N.
2170
2171config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002172 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002173 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2174 help
2175 Compile in support for changing the PLL frequency from the
2176 S3C24XX series CPUfreq driver. The PLL takes time to settle
2177 after a frequency change, so by default it is not enabled.
2178
2179 This also means that the PLL tables for the selected CPU(s) will
2180 be built which may increase the size of the kernel image.
2181
2182config CPU_FREQ_S3C24XX_DEBUG
2183 bool "Debug CPUfreq Samsung driver core"
2184 depends on CPU_FREQ_S3C24XX
2185 help
2186 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2187
2188config CPU_FREQ_S3C24XX_IODEBUG
2189 bool "Debug CPUfreq Samsung driver IO timing"
2190 depends on CPU_FREQ_S3C24XX
2191 help
2192 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2193
Ben Dookse6d197a2009-07-30 23:23:42 +01002194config CPU_FREQ_S3C24XX_DEBUGFS
2195 bool "Export debugfs for CPUFreq"
2196 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2197 help
2198 Export status information via debugfs.
2199
Linus Torvalds1da177e2005-04-16 15:20:36 -07002200endif
2201
Russell Kingac9d7ef2008-08-18 17:26:00 +01002202source "drivers/cpuidle/Kconfig"
2203
2204endmenu
2205
Linus Torvalds1da177e2005-04-16 15:20:36 -07002206menu "Floating point emulation"
2207
2208comment "At least one emulation must be selected"
2209
2210config FPE_NWFPE
2211 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002212 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002213 ---help---
2214 Say Y to include the NWFPE floating point emulator in the kernel.
2215 This is necessary to run most binaries. Linux does not currently
2216 support floating point hardware so you need to say Y here even if
2217 your machine has an FPA or floating point co-processor podule.
2218
2219 You may say N here if you are going to load the Acorn FPEmulator
2220 early in the bootup.
2221
2222config FPE_NWFPE_XP
2223 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002224 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002225 help
2226 Say Y to include 80-bit support in the kernel floating-point
2227 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2228 Note that gcc does not generate 80-bit operations by default,
2229 so in most cases this option only enlarges the size of the
2230 floating point emulator without any good reason.
2231
2232 You almost surely want to say N here.
2233
2234config FPE_FASTFPE
2235 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002236 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002237 ---help---
2238 Say Y here to include the FAST floating point emulator in the kernel.
2239 This is an experimental much faster emulator which now also has full
2240 precision for the mantissa. It does not support any exceptions.
2241 It is very simple, and approximately 3-6 times faster than NWFPE.
2242
2243 It should be sufficient for most programs. It may be not suitable
2244 for scientific calculations, but you have to check this for yourself.
2245 If you do not feel you need a faster FP emulation you should better
2246 choose NWFPE.
2247
2248config VFP
2249 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002250 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002251 help
2252 Say Y to include VFP support code in the kernel. This is needed
2253 if your hardware includes a VFP unit.
2254
2255 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2256 release notes and additional status information.
2257
2258 Say N if your target does not have VFP hardware.
2259
Catalin Marinas25ebee02007-09-25 15:22:24 +01002260config VFPv3
2261 bool
2262 depends on VFP
2263 default y if CPU_V7
2264
Catalin Marinasb5872db2008-01-10 19:16:17 +01002265config NEON
2266 bool "Advanced SIMD (NEON) Extension support"
2267 depends on VFPv3 && CPU_V7
2268 help
2269 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2270 Extension.
2271
Linus Torvalds1da177e2005-04-16 15:20:36 -07002272endmenu
2273
2274menu "Userspace binary formats"
2275
2276source "fs/Kconfig.binfmt"
2277
2278config ARTHUR
2279 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002280 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002281 help
2282 Say Y here to include the kernel code necessary if you want to run
2283 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2284 experimental; if this sounds frightening, say N and sleep in peace.
2285 You can also say M here to compile this support as a module (which
2286 will be called arthur).
2287
2288endmenu
2289
2290menu "Power management options"
2291
Russell Kingeceab4a2005-11-15 11:31:41 +00002292source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002293
Johannes Bergf4cb5702007-12-08 02:14:00 +01002294config ARCH_SUSPEND_POSSIBLE
Stephen Warren4b1082c2012-09-05 09:58:27 -06002295 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002296 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
Chao Xie3f5d0812012-05-07 11:23:58 +08002297 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002298 def_bool y
2299
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002300config ARM_CPU_SUSPEND
2301 def_bool PM_SLEEP
2302
Linus Torvalds1da177e2005-04-16 15:20:36 -07002303endmenu
2304
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002305source "net/Kconfig"
2306
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002307source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002308
2309source "fs/Kconfig"
2310
Linus Torvalds1da177e2005-04-16 15:20:36 -07002311source "arch/arm/Kconfig.debug"
2312
2313source "security/Kconfig"
2314
2315source "crypto/Kconfig"
2316
2317source "lib/Kconfig"