blob: 73067efd484530d4021a220fecce329b4752b3c0 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
Russell Kingb1b3f492012-10-06 17:12:25 +01004 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
Catalin Marinas74634492012-07-30 14:41:09 -07005 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
Russell Kingb1b3f492012-10-06 17:12:25 +01006 select ARCH_HAVE_CUSTOM_GPIO_H
7 select ARCH_WANT_IPC_PARSE_VERSION
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"
367 select ARCH_USES_GETTIMEOFFSET
368 select CLKDEV_LOOKUP
369 select COMMON_CLK
370 select CPU_ARM720T
371 select NEED_MACH_MEMORY_H
372 help
373 Support for Cirrus Logic 711x/721x/731x based boards.
374
Russell King788c9702009-04-26 14:21:59 +0100375config ARCH_GEMINI
376 bool "Cortina Systems Gemini"
Russell King788c9702009-04-26 14:21:59 +0100377 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000378 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100379 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100380 help
381 Support for the Cortina Systems Gemini family SoCs
382
Barry Song156a0992012-08-23 13:41:58 +0800383config ARCH_SIRF
384 bool "CSR SiRF"
Arnd Bergmannf6387092012-07-04 14:33:01 +0000385 select ARCH_REQUIRE_GPIOLIB
Binghua Duan198678b2012-08-20 06:42:36 +0000386 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100387 select GENERIC_CLOCKEVENTS
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200388 select GENERIC_IRQ_CHIP
Dave Martince5ea9f2011-11-29 15:56:19 +0000389 select MIGHT_HAVE_CACHE_L2X0
Russell Kingb1b3f492012-10-06 17:12:25 +0100390 select NO_IOPORT
Barry Songcbd8d842012-05-15 10:35:46 +0800391 select PINCTRL
392 select PINCTRL_SIRF
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200393 select USE_OF
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200394 help
Barry Song156a0992012-08-23 13:41:58 +0800395 Support for CSR SiRFprimaII/Marco/Polo platforms
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200396
Linus Torvalds1da177e2005-04-16 15:20:36 -0700397config ARCH_EBSA110
398 bool "EBSA-110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100399 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000400 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100401 select ISA
Rob Herringc334bc12012-03-04 22:03:33 -0600402 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400403 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100404 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700405 help
406 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000407 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700408 Ethernet interface, two PCMCIA sockets, two serial ports and a
409 parallel port.
410
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000411config ARCH_EP93XX
412 bool "EP93xx-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100413 select ARCH_HAS_HOLES_MEMORYMODEL
414 select ARCH_REQUIRE_GPIOLIB
415 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000416 select ARM_AMBA
417 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100418 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100419 select CPU_ARM920T
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100420 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000421 help
422 This enables support for the Cirrus EP93xx series of CPUs.
423
Linus Torvalds1da177e2005-04-16 15:20:36 -0700424config ARCH_FOOTBRIDGE
425 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000426 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000428 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200429 select HAVE_IDE
Rob Herring8ef6e622012-03-01 20:48:12 -0600430 select NEED_MACH_IO_H if !MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400431 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000432 help
433 Support for systems based on the DC21285 companion chip
434 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700435
Russell King788c9702009-04-26 14:21:59 +0100436config ARCH_MXC
437 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100438 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100439 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100440 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100441 select GENERIC_CLOCKEVENTS
Shawn Guo8b6c44f2011-06-07 13:59:14 +0800442 select GENERIC_IRQ_CHIP
Sascha Hauerffa2ea32011-09-20 14:31:24 +0200443 select MULTI_IRQ_HANDLER
Shawn Guo8842a9e2012-06-14 11:16:14 +0800444 select SPARSE_IRQ
Uwe Kleine-König3e62af82012-07-06 09:47:20 +0200445 select USE_OF
Russell King788c9702009-04-26 14:21:59 +0100446 help
447 Support for Freescale MXC/iMX-based family of processors
448
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800449config ARCH_MXS
450 bool "Freescale MXS-based"
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800451 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100452 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100453 select CLKSRC_MMIO
Shawn Guo26646812012-04-29 00:02:39 +0800454 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100455 select GENERIC_CLOCKEVENTS
Shawn Guo6abda3e2011-12-20 16:12:34 +0800456 select HAVE_CLK_PREPARE
Shawn Guo4e0a1b82012-08-20 10:14:56 +0800457 select MULTI_IRQ_HANDLER
Shawn Guoa0f5e362012-05-06 23:13:13 +0800458 select PINCTRL
Shawn Guoc2668202012-08-20 21:52:12 +0800459 select SPARSE_IRQ
Shawn Guo6c4d4ef2012-05-04 21:42:41 +0800460 select USE_OF
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800461 help
462 Support for Freescale MXS-based family of processors
463
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100464config ARCH_NETX
465 bool "Hilscher NetX based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100466 select ARM_VIC
Russell King234b6ced2011-05-08 14:09:47 +0100467 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000468 select CPU_ARM926T
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100469 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000470 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100471 This enables support for systems based on the Hilscher NetX Soc
472
473config ARCH_H720X
474 bool "Hynix HMS720x-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100475 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000476 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100477 select ISA_DMA_API
478 help
479 This enables support for systems based on the Hynix HMS720x
480
Russell King3b938be2007-05-12 11:25:44 +0100481config ARCH_IOP13XX
482 bool "IOP13xx-based"
483 depends on MMU
Russell King3b938be2007-05-12 11:25:44 +0100484 select ARCH_SUPPORTS_MSI
Russell Kingb1b3f492012-10-06 17:12:25 +0100485 select CPU_XSC3
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400486 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600487 select NEED_RET_TO_USER
Russell Kingb1b3f492012-10-06 17:12:25 +0100488 select PCI
489 select PLAT_IOP
490 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100491 help
492 Support for Intel's IOP13XX (XScale) family of processors.
493
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100494config ARCH_IOP32X
495 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100496 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100497 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000498 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500499 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600500 select NEED_RET_TO_USER
Russell Kingf7e68bb2005-05-05 14:49:01 +0100501 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100502 select PLAT_IOP
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000503 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100504 Support for Intel's 80219 and IOP32X (XScale) family of
505 processors.
506
507config ARCH_IOP33X
508 bool "IOP33x-based"
509 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100510 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000511 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500512 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600513 select NEED_RET_TO_USER
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100514 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100515 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100516 help
517 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700518
Russell King3b938be2007-05-12 11:25:44 +0100519config ARCH_IXP4XX
520 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100521 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500522 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell Kingb1b3f492012-10-06 17:12:25 +0100523 select ARCH_REQUIRE_GPIOLIB
Russell King234b6ced2011-05-08 14:09:47 +0100524 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000525 select CPU_XSCALE
Russell Kingb1b3f492012-10-06 17:12:25 +0100526 select DMABOUNCE if PCI
Russell King3b938be2007-05-12 11:25:44 +0100527 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100528 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600529 select NEED_MACH_IO_H
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100530 help
Russell King3b938be2007-05-12 11:25:44 +0100531 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100532
Saeed Bisharaedabd382009-08-06 15:12:43 +0300533config ARCH_DOVE
534 bool "Marvell Dove"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300535 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100536 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300537 select GENERIC_CLOCKEVENTS
Russell King0f81bd42012-09-09 20:34:13 +0100538 select MIGHT_HAVE_PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200539 select PLAT_ORION_LEGACY
Russell King0f81bd42012-09-09 20:34:13 +0100540 select USB_ARCH_HAS_EHCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300541 help
542 Support for the Marvell Dove SoC 88AP510
543
Saeed Bishara651c74c2008-06-22 22:45:06 +0200544config ARCH_KIRKWOOD
545 bool "Marvell Kirkwood"
Erik Benadaa8865652009-05-28 17:08:55 -0700546 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100547 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200548 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100549 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200550 select PLAT_ORION_LEGACY
Saeed Bishara651c74c2008-06-22 22:45:06 +0200551 help
552 Support for the following Marvell Kirkwood series SoCs:
553 88F6180, 88F6192 and 88F6281.
554
Russell King788c9702009-04-26 14:21:59 +0100555config ARCH_MV78XX0
556 bool "Marvell MV78xx0"
Erik Benadaa8865652009-05-28 17:08:55 -0700557 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100558 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100559 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100560 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200561 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100562 help
563 Support for the following Marvell MV78xx0 series SoCs:
564 MV781x0, MV782x0.
565
566config ARCH_ORION5X
567 bool "Marvell Orion"
568 depends on MMU
Erik Benadaa8865652009-05-28 17:08:55 -0700569 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100570 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100571 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100572 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200573 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100574 help
575 Support for the following Marvell Orion 5x series SoCs:
576 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
577 Orion-2 (5281), Orion-1-90 (6183).
578
579config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500580 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100581 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100582 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100583 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100584 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100585 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800586 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800587 select IRQ_DOMAIN
Russell Kingb1b3f492012-10-06 17:12:25 +0100588 select NEED_MACH_GPIO_H
Russell King788c9702009-04-26 14:21:59 +0100589 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400590 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100591 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500592 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100593
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100594config ARCH_KS8695
595 bool "Micrel/Kendin KS8695"
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100596 select ARCH_REQUIRE_GPIOLIB
Linus Walleijc7e783d2012-08-29 20:27:22 +0200597 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100598 select CPU_ARM922T
Linus Walleijc7e783d2012-08-29 20:27:22 +0200599 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100600 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100601 help
602 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
603 System-on-Chip devices.
604
Russell King788c9702009-04-26 14:21:59 +0100605config ARCH_W90X900
606 bool "Nuvoton W90X900 CPU"
wanzongshunc52d3d62009-06-10 15:49:32 +0100607 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100608 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100609 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100610 select CPU_ARM926T
wanzongshun58b53692009-08-14 15:36:44 +0100611 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200612 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100613 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
614 At present, the w90x900 has been renamed nuc900, regarding
615 the ARM series product line, you can login the following
616 link address to know more.
617
618 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
619 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400620
Russell King93e22562012-10-12 14:20:52 +0100621config ARCH_LPC32XX
622 bool "NXP LPC32XX"
623 select ARCH_REQUIRE_GPIOLIB
624 select ARM_AMBA
Russell King40737232011-01-06 22:32:52 +0000625 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100626 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100627 select CPU_ARM926T
628 select GENERIC_CLOCKEVENTS
629 select HAVE_IDE
630 select HAVE_PWM
631 select USB_ARCH_HAS_OHCI
632 select USE_OF
633 help
634 Support for the NXP LPC32XX family of processors
635
wanzongshuna62e9032009-12-31 15:06:05 +0100636config ARCH_TEGRA
637 bool "NVIDIA Tegra"
Russell Kingb1b3f492012-10-06 17:12:25 +0100638 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800639 select CLKDEV_LOOKUP
640 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100641 select COMMON_CLK
Erik Gillingc5f80062010-01-21 16:53:02 -0800642 select GENERIC_CLOCKEVENTS
643 select GENERIC_GPIO
644 select HAVE_CLK
Dave Martin3b556582011-12-07 15:38:04 +0000645 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000646 select MIGHT_HAVE_CACHE_L2X0
Stephen Warren2c95b7e2012-05-21 15:07:19 -0600647 select USE_OF
Erik Gillingc5f80062010-01-21 16:53:02 -0800648 help
649 This enables support for NVIDIA Tegra based systems (Tegra APX,
650 Tegra 6xx and Tegra 2 series).
651
Linus Torvalds1da177e2005-04-16 15:20:36 -0700652config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700653 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100654 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100655 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100656 select ARCH_MTD_XIP
657 select ARCH_REQUIRE_GPIOLIB
658 select ARM_CPU_SUSPEND if PM
659 select AUTO_ZRELADDR
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100660 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100661 select CLKSRC_MMIO
Eric Miao981d0f32007-07-24 01:22:43 +0100662 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800663 select GPIO_PXA
Russell Kingb1b3f492012-10-06 17:12:25 +0100664 select HAVE_IDE
665 select MULTI_IRQ_HANDLER
666 select NEED_MACH_GPIO_H
Eric Miaobd5ce432009-01-20 12:06:01 +0800667 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800668 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000669 help
eric miao2c8086a2007-09-11 19:13:17 -0700670 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700671
Russell King788c9702009-04-26 14:21:59 +0100672config ARCH_MSM
673 bool "Qualcomm MSM"
Pavel Machek923a0812010-06-02 11:11:12 -0700674 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800675 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100676 select GENERIC_CLOCKEVENTS
677 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800678 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800679 Support for Qualcomm MSM/QSD based systems. This runs on the
680 apps processor of the MSM/QSD and depends on a shared memory
681 interface to the modem processor which runs the baseband
682 stack and controls some vital subsystems
683 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800684
Magnus Dammc793c1b2010-02-05 11:14:49 +0000685config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900686 bool "Renesas SH-Mobile / R-Mobile"
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900687 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100688 select GENERIC_CLOCKEVENTS
689 select HAVE_CLK
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900690 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000691 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000692 select MIGHT_HAVE_CACHE_L2X0
Magnus Damm60f14352010-12-28 08:26:52 +0000693 select MULTI_IRQ_HANDLER
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400694 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100695 select NO_IOPORT
696 select PM_GENERIC_DOMAINS if PM
697 select SPARSE_IRQ
Magnus Dammc793c1b2010-02-05 11:14:49 +0000698 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900699 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000700
Linus Torvalds1da177e2005-04-16 15:20:36 -0700701config ARCH_RPC
702 bool "RiscPC"
703 select ARCH_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100704 select ARCH_MAY_HAVE_PC_FDC
Russell King07f841b2008-10-01 17:11:06 +0100705 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000706 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100707 select FIQ
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200708 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100709 select HAVE_PATA_PLATFORM
710 select ISA_DMA_API
Rob Herringc334bc12012-03-04 22:03:33 -0600711 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400712 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100713 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700714 help
715 On the Acorn Risc-PC, Linux can support the internal IDE disk and
716 CD-ROM interface, serial and parallel port, and the floppy drive.
717
718config ARCH_SA1100
719 bool "SA1100-based"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100720 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100721 select ARCH_MTD_XIP
Michael Buesch7444a722008-07-25 01:46:11 -0700722 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100723 select ARCH_SPARSEMEM_ENABLE
724 select CLKDEV_LOOKUP
725 select CLKSRC_MMIO
726 select CPU_FREQ
727 select CPU_SA1100
728 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200729 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100730 select ISA
Rob Herring01464222012-08-28 13:06:41 -0500731 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400732 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100733 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000734 help
735 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700736
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900737config ARCH_S3C24XX
738 bool "Samsung S3C24XX SoCs"
Ben Dooks9d56c022009-07-30 23:23:25 +0100739 select ARCH_HAS_CPUFREQ
John Stultz5cfc8ee2010-03-24 00:22:36 +0000740 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100741 select CLKDEV_LOOKUP
742 select GENERIC_GPIO
743 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900744 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900745 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100746 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500747 select NEED_MACH_GPIO_H
Rob Herringc334bc12012-03-04 22:03:33 -0600748 select NEED_MACH_IO_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700749 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900750 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
751 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
752 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
753 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900754
Ben Dooksa08ab632008-10-21 14:06:39 +0100755config ARCH_S3C64XX
756 bool "Samsung S3C64XX"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100757 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900758 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100759 select ARCH_USES_GETTIMEOFFSET
760 select ARM_VIC
761 select CLKDEV_LOOKUP
762 select CPU_V6
763 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900764 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900765 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100766 select HAVE_TCM
Rob Herring01464222012-08-28 13:06:41 -0500767 select NEED_MACH_GPIO_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100768 select NO_IOPORT
769 select PLAT_SAMSUNG
770 select S3C_DEV_NAND
771 select S3C_GPIO_TRACK
772 select SAMSUNG_CLKSRC
773 select SAMSUNG_GPIOLIB_4BIT
774 select SAMSUNG_IRQ_VIC_TIMER
775 select USB_ARCH_HAS_OHCI
Ben Dooksa08ab632008-10-21 14:06:39 +0100776 help
777 Samsung S3C64XX series based systems
778
Kukjin Kim49b7a492010-09-07 15:47:18 +0900779config ARCH_S5P64X0
780 bool "Samsung S5P6440 S5P6450"
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900781 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900782 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100783 select CPU_V6
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900784 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100785 select GENERIC_GPIO
786 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900787 select HAVE_S3C2410_I2C if I2C
Russell Kingb1b3f492012-10-06 17:12:25 +0100788 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim754961a2010-11-13 16:11:46 +0900789 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500790 select NEED_MACH_GPIO_H
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900791 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900792 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
793 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900794
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200795config ARCH_S5PC100
796 bool "Samsung S5PC100"
Russell Kingb1b3f492012-10-06 17:12:25 +0100797 select ARCH_USES_GETTIMEOFFSET
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900798 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900799 select CPU_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100800 select GENERIC_GPIO
801 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900802 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900803 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100804 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500805 select NEED_MACH_GPIO_H
Byungho Min5a7652f2009-06-23 21:39:42 +0900806 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200807 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900808
Kukjin Kim170f4e42010-02-24 16:40:44 +0900809config ARCH_S5PV210
810 bool "Samsung S5PV210/S5PC110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100811 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900812 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100813 select ARCH_SPARSEMEM_ENABLE
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900814 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900815 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100816 select CPU_V7
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900817 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100818 select GENERIC_GPIO
819 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900820 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900821 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100822 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500823 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400824 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900825 help
826 Samsung S5PV210/S5PC110 series based systems
827
Kukjin Kim83014572011-11-06 13:54:56 +0900828config ARCH_EXYNOS
Russell King93e22562012-10-12 14:20:52 +0100829 bool "Samsung EXYNOS"
Russell Kingb1b3f492012-10-06 17:12:25 +0100830 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900831 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100832 select ARCH_SPARSEMEM_ENABLE
833 select CLKDEV_LOOKUP
834 select CPU_V7
835 select GENERIC_CLOCKEVENTS
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900836 select GENERIC_GPIO
837 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900838 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900839 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100840 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500841 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400842 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900843 help
Kukjin Kim83014572011-11-06 13:54:56 +0900844 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900845
Linus Torvalds1da177e2005-04-16 15:20:36 -0700846config ARCH_SHARK
847 bool "Shark"
Russell Kingb1b3f492012-10-06 17:12:25 +0100848 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000849 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100850 select ISA
851 select ISA_DMA
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400852 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100853 select PCI
854 select ZONE_DMA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000855 help
856 Support for the StrongARM based Digital DNARD machine, also known
857 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700858
Linus Walleijd98aac72009-04-27 10:21:46 +0100859config ARCH_U300
860 bool "ST-Ericsson U300 Series"
861 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100862 select ARCH_REQUIRE_GPIOLIB
Linus Walleijd98aac72009-04-27 10:21:46 +0100863 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200864 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100865 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100866 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100867 select CLKSRC_MMIO
Linus Walleij50667d62012-06-19 23:44:25 +0200868 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100869 select CPU_ARM926T
870 select GENERIC_CLOCKEVENTS
Linus Walleijd98aac72009-04-27 10:21:46 +0100871 select GENERIC_GPIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100872 select HAVE_TCM
Linus Walleija4fe2922012-08-13 13:49:45 +0200873 select SPARSE_IRQ
Linus Walleijd98aac72009-04-27 10:21:46 +0100874 help
875 Support for ST-Ericsson U300 series mobile platforms.
876
Russell Kingccf50e22010-03-15 19:03:06 +0000877config ARCH_U8500
878 bool "ST-Ericsson U8500 Series"
Arnd Bergmann67ae14f2012-02-25 12:48:49 -0700879 depends on MMU
Martin Persson7c1a70e2010-12-08 15:13:42 +0100880 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100881 select ARCH_REQUIRE_GPIOLIB
882 select ARM_AMBA
883 select CLKDEV_LOOKUP
884 select CPU_V7
885 select GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +0000886 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000887 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000888 help
889 Support for ST-Ericsson's Ux500 architecture
890
891config ARCH_NOMADIK
892 bool "STMicroelectronics Nomadik"
Russell Kingb1b3f492012-10-06 17:12:25 +0100893 select ARCH_REQUIRE_GPIOLIB
Russell Kingccf50e22010-03-15 19:03:06 +0000894 select ARM_AMBA
895 select ARM_VIC
Linus Walleij4a31bd22012-01-11 13:52:34 +0100896 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100897 select CPU_ARM926T
Russell Kingccf50e22010-03-15 19:03:06 +0000898 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100899 select MIGHT_HAVE_CACHE_L2X0
Arnd Bergmann0fa7be42012-05-15 11:24:34 +0000900 select PINCTRL
Linus Walleij2601ccf2012-08-10 00:43:40 +0200901 select PINCTRL_STN8815
Russell Kingccf50e22010-03-15 19:03:06 +0000902 help
903 Support for the Nomadik platform by ST-Ericsson
904
Russell King93e22562012-10-12 14:20:52 +0100905config PLAT_SPEAR
906 bool "ST SPEAr"
907 select ARCH_REQUIRE_GPIOLIB
908 select ARM_AMBA
909 select CLKDEV_LOOKUP
910 select CLKSRC_MMIO
911 select COMMON_CLK
912 select GENERIC_CLOCKEVENTS
913 select HAVE_CLK
914 help
915 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
916
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100917config ARCH_DAVINCI
918 bool "TI DaVinci"
Russell Kingb1b3f492012-10-06 17:12:25 +0100919 select ARCH_HAS_HOLES_MEMORYMODEL
David Brownelldce11152008-09-07 23:41:04 -0700920 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100921 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700922 select GENERIC_ALLOCATOR
Russell Kingb1b3f492012-10-06 17:12:25 +0100923 select GENERIC_CLOCKEVENTS
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100924 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100925 select HAVE_IDE
Rob Herring01464222012-08-28 13:06:41 -0500926 select NEED_MACH_GPIO_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100927 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100928 help
929 Support for TI's DaVinci platform.
930
Russell King3b938be2007-05-12 11:25:44 +0100931config ARCH_OMAP
932 bool "TI OMAP"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600933 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100934 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100935 select ARCH_HAS_HOLES_MEMORYMODEL
936 select ARCH_REQUIRE_GPIOLIB
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700937 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700938 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100939 select HAVE_CLK
Rob Herring01464222012-08-28 13:06:41 -0500940 select NEED_MACH_GPIO_H
Russell King3b938be2007-05-12 11:25:44 +0100941 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200942 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100943
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100944config ARCH_VT8500
945 bool "VIA/WonderMedia 85xx"
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100946 select ARCH_HAS_CPUFREQ
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100947 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200948 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100949 select COMMON_CLK
950 select CPU_ARM926T
951 select GENERIC_CLOCKEVENTS
952 select GENERIC_GPIO
953 select HAVE_CLK
954 select USE_OF
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100955 help
956 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +0800957
John Linnb85a3ef2011-06-20 11:47:27 -0600958config ARCH_ZYNQ
959 bool "Xilinx Zynq ARM Cortex A9 Platform"
Russell Kingb1b3f492012-10-06 17:12:25 +0100960 select ARM_AMBA
961 select ARM_GIC
962 select CLKDEV_LOOKUP
Binghua Duan02c981c2011-07-08 17:40:12 +0800963 select CPU_V7
Binghua Duan02c981c2011-07-08 17:40:12 +0800964 select GENERIC_CLOCKEVENTS
John Linnb85a3ef2011-06-20 11:47:27 -0600965 select ICST
Dave Martince5ea9f2011-11-29 15:56:19 +0000966 select MIGHT_HAVE_CACHE_L2X0
Binghua Duan02c981c2011-07-08 17:40:12 +0800967 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +0800968 help
John Linnb85a3ef2011-06-20 11:47:27 -0600969 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -0700970endchoice
971
Rob Herring387798b2012-09-06 13:41:12 -0500972menu "Multiple platform selection"
973 depends on ARCH_MULTIPLATFORM
974
975comment "CPU Core family selection"
976
977config ARCH_MULTI_V4
978 bool "ARMv4 based platforms (FA526, StrongARM)"
Rob Herring387798b2012-09-06 13:41:12 -0500979 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100980 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500981
982config ARCH_MULTI_V4T
983 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
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_V5
988 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
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_V4_V5
993 bool
994
995config ARCH_MULTI_V6
996 bool "ARMv6 based platforms (ARM11, Scorpion, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500997 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100998 select CPU_V6
Rob Herring387798b2012-09-06 13:41:12 -0500999
1000config ARCH_MULTI_V7
1001 bool "ARMv7 based platforms (Cortex-A, PJ4, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -05001002 default y
1003 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +01001004 select ARCH_VEXPRESS
1005 select CPU_V7
Rob Herring387798b2012-09-06 13:41:12 -05001006
1007config ARCH_MULTI_V6_V7
1008 bool
1009
1010config ARCH_MULTI_CPU_AUTO
1011 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
1012 select ARCH_MULTI_V5
1013
1014endmenu
1015
Russell Kingccf50e22010-03-15 19:03:06 +00001016#
1017# This is sorted alphabetically by mach-* pathname. However, plat-*
1018# Kconfigs may be included either alphabetically (according to the
1019# plat- suffix) or along side the corresponding mach-* source.
1020#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +02001021source "arch/arm/mach-mvebu/Kconfig"
1022
Russell King95b8f202010-01-14 11:43:54 +00001023source "arch/arm/mach-at91/Kconfig"
1024
Linus Torvalds1da177e2005-04-16 15:20:36 -07001025source "arch/arm/mach-clps711x/Kconfig"
1026
Anton Vorontsovd94f9442010-03-25 17:12:41 +03001027source "arch/arm/mach-cns3xxx/Kconfig"
1028
Russell King95b8f202010-01-14 11:43:54 +00001029source "arch/arm/mach-davinci/Kconfig"
1030
1031source "arch/arm/mach-dove/Kconfig"
1032
Lennert Buytenheke7736d42006-03-20 17:10:13 +00001033source "arch/arm/mach-ep93xx/Kconfig"
1034
Linus Torvalds1da177e2005-04-16 15:20:36 -07001035source "arch/arm/mach-footbridge/Kconfig"
1036
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001037source "arch/arm/mach-gemini/Kconfig"
1038
Russell King95b8f202010-01-14 11:43:54 +00001039source "arch/arm/mach-h720x/Kconfig"
1040
Rob Herring387798b2012-09-06 13:41:12 -05001041source "arch/arm/mach-highbank/Kconfig"
1042
Linus Torvalds1da177e2005-04-16 15:20:36 -07001043source "arch/arm/mach-integrator/Kconfig"
1044
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001045source "arch/arm/mach-iop32x/Kconfig"
1046
1047source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001048
Dan Williams285f5fa2006-12-07 02:59:39 +01001049source "arch/arm/mach-iop13xx/Kconfig"
1050
Linus Torvalds1da177e2005-04-16 15:20:36 -07001051source "arch/arm/mach-ixp4xx/Kconfig"
1052
Russell King95b8f202010-01-14 11:43:54 +00001053source "arch/arm/mach-kirkwood/Kconfig"
1054
1055source "arch/arm/mach-ks8695/Kconfig"
1056
Russell King95b8f202010-01-14 11:43:54 +00001057source "arch/arm/mach-msm/Kconfig"
1058
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001059source "arch/arm/mach-mv78xx0/Kconfig"
1060
Russell King95b8f202010-01-14 11:43:54 +00001061source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001062
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001063source "arch/arm/mach-mxs/Kconfig"
1064
Russell King95b8f202010-01-14 11:43:54 +00001065source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001066
Russell King95b8f202010-01-14 11:43:54 +00001067source "arch/arm/mach-nomadik/Kconfig"
1068source "arch/arm/plat-nomadik/Kconfig"
1069
Tony Lindgrend48af152005-07-10 19:58:17 +01001070source "arch/arm/plat-omap/Kconfig"
1071
1072source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001073
Tony Lindgren1dbae812005-11-10 14:26:51 +00001074source "arch/arm/mach-omap2/Kconfig"
1075
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001076source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001077
Rob Herring387798b2012-09-06 13:41:12 -05001078source "arch/arm/mach-picoxcell/Kconfig"
1079
Russell King95b8f202010-01-14 11:43:54 +00001080source "arch/arm/mach-pxa/Kconfig"
1081source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001082
Russell King95b8f202010-01-14 11:43:54 +00001083source "arch/arm/mach-mmp/Kconfig"
1084
1085source "arch/arm/mach-realview/Kconfig"
1086
1087source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001088
Ben Dookscf383672009-11-10 00:14:58 +00001089source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001090source "arch/arm/plat-s3c24xx/Kconfig"
1091
Rob Herring387798b2012-09-06 13:41:12 -05001092source "arch/arm/mach-socfpga/Kconfig"
1093
viresh kumarcee37e52010-04-01 12:31:05 +01001094source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001095
Kukjin Kim85fd6d62012-02-06 09:38:19 +09001096source "arch/arm/mach-s3c24xx/Kconfig"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001097if ARCH_S3C24XX
Ben Dooksa21765a2007-02-11 18:31:01 +01001098source "arch/arm/mach-s3c2412/Kconfig"
1099source "arch/arm/mach-s3c2440/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001100endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001101
Ben Dooksa08ab632008-10-21 14:06:39 +01001102if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001103source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001104endif
1105
Kukjin Kim49b7a492010-09-07 15:47:18 +09001106source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001107
Byungho Min5a7652f2009-06-23 21:39:42 +09001108source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001109
Kukjin Kim170f4e42010-02-24 16:40:44 +09001110source "arch/arm/mach-s5pv210/Kconfig"
1111
Kukjin Kim83014572011-11-06 13:54:56 +09001112source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001113
Russell King882d01f2010-03-02 23:40:15 +00001114source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001115
Barry Song156a0992012-08-23 13:41:58 +08001116source "arch/arm/mach-prima2/Kconfig"
1117
Erik Gillingc5f80062010-01-21 16:53:02 -08001118source "arch/arm/mach-tegra/Kconfig"
1119
Russell King95b8f202010-01-14 11:43:54 +00001120source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001121
Russell King95b8f202010-01-14 11:43:54 +00001122source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001123
1124source "arch/arm/mach-versatile/Kconfig"
1125
Russell Kingceade892010-02-11 21:44:53 +00001126source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001127source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001128
wanzongshun7ec80dd2008-12-03 03:55:38 +01001129source "arch/arm/mach-w90x900/Kconfig"
1130
Linus Torvalds1da177e2005-04-16 15:20:36 -07001131# Definitions to make life easier
1132config ARCH_ACORN
1133 bool
1134
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001135config PLAT_IOP
1136 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001137 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001138
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001139config PLAT_ORION
1140 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001141 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +01001142 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001143 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +02001144 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001145
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +02001146config PLAT_ORION_LEGACY
1147 bool
1148 select PLAT_ORION
1149
Eric Miaobd5ce432009-01-20 12:06:01 +08001150config PLAT_PXA
1151 bool
1152
Russell Kingf4b8b312010-01-14 12:48:06 +00001153config PLAT_VERSATILE
1154 bool
1155
Russell Kinge3887712010-01-14 13:30:16 +00001156config ARM_TIMER_SP804
1157 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001158 select CLKSRC_MMIO
Rob Herringa7bf6162011-12-12 15:29:08 -06001159 select HAVE_SCHED_CLOCK
Russell Kinge3887712010-01-14 13:30:16 +00001160
Linus Torvalds1da177e2005-04-16 15:20:36 -07001161source arch/arm/mm/Kconfig
1162
Russell King958cab02011-12-11 10:04:00 +00001163config ARM_NR_BANKS
1164 int
1165 default 16 if ARCH_EP93XX
1166 default 8
1167
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001168config IWMMXT
1169 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001170 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1171 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001172 help
1173 Enable support for iWMMXt context switching at run time if
1174 running on a CPU that supports it.
1175
Linus Torvalds1da177e2005-04-16 15:20:36 -07001176config XSCALE_PMU
1177 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001178 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001179 default y
1180
eric miao52108642010-12-13 09:42:34 +01001181config MULTI_IRQ_HANDLER
1182 bool
1183 help
1184 Allow each machine to specify it's own IRQ handler at run time.
1185
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001186if !MMU
1187source "arch/arm/Kconfig-nommu"
1188endif
1189
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001190config ARM_ERRATA_326103
1191 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1192 depends on CPU_V6
1193 help
1194 Executing a SWP instruction to read-only memory does not set bit 11
1195 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1196 treat the access as a read, preventing a COW from occurring and
1197 causing the faulting task to livelock.
1198
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001199config ARM_ERRATA_411920
1200 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001201 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001202 help
1203 Invalidation of the Instruction Cache operation can
1204 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1205 It does not affect the MPCore. This option enables the ARM Ltd.
1206 recommended workaround.
1207
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001208config ARM_ERRATA_430973
1209 bool "ARM errata: Stale prediction on replaced interworking branch"
1210 depends on CPU_V7
1211 help
1212 This option enables the workaround for the 430973 Cortex-A8
1213 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1214 interworking branch is replaced with another code sequence at the
1215 same virtual address, whether due to self-modifying code or virtual
1216 to physical address re-mapping, Cortex-A8 does not recover from the
1217 stale interworking branch prediction. This results in Cortex-A8
1218 executing the new code sequence in the incorrect ARM or Thumb state.
1219 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1220 and also flushes the branch target cache at every context switch.
1221 Note that setting specific bits in the ACTLR register may not be
1222 available in non-secure mode.
1223
Catalin Marinas855c5512009-04-30 17:06:15 +01001224config ARM_ERRATA_458693
1225 bool "ARM errata: Processor deadlock when a false hazard is created"
1226 depends on CPU_V7
1227 help
1228 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1229 erratum. For very specific sequences of memory operations, it is
1230 possible for a hazard condition intended for a cache line to instead
1231 be incorrectly associated with a different cache line. This false
1232 hazard might then cause a processor deadlock. The workaround enables
1233 the L1 caching of the NEON accesses and disables the PLD instruction
1234 in the ACTLR register. Note that setting specific bits in the ACTLR
1235 register may not be available in non-secure mode.
1236
Catalin Marinas0516e462009-04-30 17:06:20 +01001237config ARM_ERRATA_460075
1238 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1239 depends on CPU_V7
1240 help
1241 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1242 erratum. Any asynchronous access to the L2 cache may encounter a
1243 situation in which recent store transactions to the L2 cache are lost
1244 and overwritten with stale memory contents from external memory. The
1245 workaround disables the write-allocate mode for the L2 cache via the
1246 ACTLR register. Note that setting specific bits in the ACTLR register
1247 may not be available in non-secure mode.
1248
Will Deacon9f050272010-09-14 09:51:43 +01001249config ARM_ERRATA_742230
1250 bool "ARM errata: DMB operation may be faulty"
1251 depends on CPU_V7 && SMP
1252 help
1253 This option enables the workaround for the 742230 Cortex-A9
1254 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1255 between two write operations may not ensure the correct visibility
1256 ordering of the two writes. This workaround sets a specific bit in
1257 the diagnostic register of the Cortex-A9 which causes the DMB
1258 instruction to behave as a DSB, ensuring the correct behaviour of
1259 the two writes.
1260
Will Deacona672e992010-09-14 09:53:02 +01001261config ARM_ERRATA_742231
1262 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1263 depends on CPU_V7 && SMP
1264 help
1265 This option enables the workaround for the 742231 Cortex-A9
1266 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1267 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1268 accessing some data located in the same cache line, may get corrupted
1269 data due to bad handling of the address hazard when the line gets
1270 replaced from one of the CPUs at the same time as another CPU is
1271 accessing it. This workaround sets specific bits in the diagnostic
1272 register of the Cortex-A9 which reduces the linefill issuing
1273 capabilities of the processor.
1274
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001275config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001276 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001277 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001278 help
1279 The PL310 L2 cache controller implements three types of Clean &
1280 Invalidate maintenance operations: by Physical Address
1281 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1282 They are architecturally defined to behave as the execution of a
1283 clean operation followed immediately by an invalidate operation,
1284 both performing to the same memory location. This functionality
1285 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001286 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001287
1288config ARM_ERRATA_720789
1289 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001290 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001291 help
1292 This option enables the workaround for the 720789 Cortex-A9 (prior to
1293 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1294 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1295 As a consequence of this erratum, some TLB entries which should be
1296 invalidated are not, resulting in an incoherency in the system page
1297 tables. The workaround changes the TLB flushing routines to invalidate
1298 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001299
Russell King1f0090a2011-03-16 23:35:25 +00001300config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001301 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001302 depends on CACHE_L2X0
1303 help
1304 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1305 operation (offset 0x7FC). This operation runs in background so that
1306 PL310 can handle normal accesses while it is in progress. Under very
1307 rare circumstances, due to this erratum, write data can be lost when
1308 PL310 treats a cacheable write transaction during a Clean &
1309 Invalidate by Way operation.
1310
Will Deacon475d92f2010-09-28 14:02:02 +01001311config ARM_ERRATA_743622
1312 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1313 depends on CPU_V7
1314 help
1315 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001316 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001317 optimisation in the Cortex-A9 Store Buffer may lead to data
1318 corruption. This workaround sets a specific bit in the diagnostic
1319 register of the Cortex-A9 which disables the Store Buffer
1320 optimisation, preventing the defect from occurring. This has no
1321 visible impact on the overall performance or power consumption of the
1322 processor.
1323
Will Deacon9a27c272011-02-18 16:36:35 +01001324config ARM_ERRATA_751472
1325 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001326 depends on CPU_V7
Will Deacon9a27c272011-02-18 16:36:35 +01001327 help
1328 This option enables the workaround for the 751472 Cortex-A9 (prior
1329 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1330 completion of a following broadcasted operation if the second
1331 operation is received by a CPU before the ICIALLUIS has completed,
1332 potentially leading to corrupted entries in the cache or TLB.
1333
Will Deaconfa0ce402011-11-14 17:24:57 +01001334config PL310_ERRATA_753970
1335 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001336 depends on CACHE_PL310
1337 help
1338 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1339
1340 Under some condition the effect of cache sync operation on
1341 the store buffer still remains when the operation completes.
1342 This means that the store buffer is always asked to drain and
1343 this prevents it from merging any further writes. The workaround
1344 is to replace the normal offset of cache sync operation (0x730)
1345 by another offset targeting an unmapped PL310 register 0x740.
1346 This has the same effect as the cache sync operation: store buffer
1347 drain and waiting for all buffers empty.
1348
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001349config ARM_ERRATA_754322
1350 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1351 depends on CPU_V7
1352 help
1353 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1354 r3p*) erratum. A speculative memory access may cause a page table walk
1355 which starts prior to an ASID switch but completes afterwards. This
1356 can populate the micro-TLB with a stale entry which may be hit with
1357 the new ASID. This workaround places two dsb instructions in the mm
1358 switching code so that no page table walks can cross the ASID switch.
1359
Will Deacon5dab26af2011-03-04 12:38:54 +01001360config ARM_ERRATA_754327
1361 bool "ARM errata: no automatic Store Buffer drain"
1362 depends on CPU_V7 && SMP
1363 help
1364 This option enables the workaround for the 754327 Cortex-A9 (prior to
1365 r2p0) erratum. The Store Buffer does not have any automatic draining
1366 mechanism and therefore a livelock may occur if an external agent
1367 continuously polls a memory location waiting to observe an update.
1368 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1369 written polling loops from denying visibility of updates to memory.
1370
Catalin Marinas145e10e2011-08-15 11:04:41 +01001371config ARM_ERRATA_364296
1372 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1373 depends on CPU_V6 && !SMP
1374 help
1375 This options enables the workaround for the 364296 ARM1136
1376 r0p2 erratum (possible cache data corruption with
1377 hit-under-miss enabled). It sets the undocumented bit 31 in
1378 the auxiliary control register and the FI bit in the control
1379 register, thus disabling hit-under-miss without putting the
1380 processor into full low interrupt latency mode. ARM11MPCore
1381 is not affected.
1382
Will Deaconf630c1b2011-09-15 11:45:15 +01001383config ARM_ERRATA_764369
1384 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1385 depends on CPU_V7 && SMP
1386 help
1387 This option enables the workaround for erratum 764369
1388 affecting Cortex-A9 MPCore with two or more processors (all
1389 current revisions). Under certain timing circumstances, a data
1390 cache line maintenance operation by MVA targeting an Inner
1391 Shareable memory region may fail to proceed up to either the
1392 Point of Coherency or to the Point of Unification of the
1393 system. This workaround adds a DSB instruction before the
1394 relevant cache maintenance functions and sets a specific bit
1395 in the diagnostic control register of the SCU.
1396
Will Deacon11ed0ba2011-11-14 17:24:58 +01001397config PL310_ERRATA_769419
1398 bool "PL310 errata: no automatic Store Buffer drain"
1399 depends on CACHE_L2X0
1400 help
1401 On revisions of the PL310 prior to r3p2, the Store Buffer does
1402 not automatically drain. This can cause normal, non-cacheable
1403 writes to be retained when the memory system is idle, leading
1404 to suboptimal I/O performance for drivers using coherent DMA.
1405 This option adds a write barrier to the cpu_idle loop so that,
1406 on systems with an outer cache, the store buffer is drained
1407 explicitly.
1408
Simon Horman7253b852012-09-28 02:12:45 +01001409config ARM_ERRATA_775420
1410 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1411 depends on CPU_V7
1412 help
1413 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1414 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1415 operation aborts with MMU exception, it might cause the processor
1416 to deadlock. This workaround puts DSB before executing ISB if
1417 an abort may occur on cache maintenance.
1418
Linus Torvalds1da177e2005-04-16 15:20:36 -07001419endmenu
1420
1421source "arch/arm/common/Kconfig"
1422
Linus Torvalds1da177e2005-04-16 15:20:36 -07001423menu "Bus support"
1424
1425config ARM_AMBA
1426 bool
1427
1428config ISA
1429 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001430 help
1431 Find out whether you have ISA slots on your motherboard. ISA is the
1432 name of a bus system, i.e. the way the CPU talks to the other stuff
1433 inside your box. Other bus systems are PCI, EISA, MicroChannel
1434 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1435 newer boards don't support it. If you have ISA, say Y, otherwise N.
1436
Russell King065909b2006-01-04 15:44:16 +00001437# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001438config ISA_DMA
1439 bool
Russell King065909b2006-01-04 15:44:16 +00001440 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001441
Russell King065909b2006-01-04 15:44:16 +00001442# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001443config ISA_DMA_API
1444 bool
Al Viro5cae8412005-05-04 05:39:22 +01001445
Linus Torvalds1da177e2005-04-16 15:20:36 -07001446config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001447 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001448 help
1449 Find out whether you have a PCI motherboard. PCI is the name of a
1450 bus system, i.e. the way the CPU talks to the other stuff inside
1451 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1452 VESA. If you have PCI, say Y, otherwise N.
1453
Anton Vorontsov52882172010-04-19 13:20:49 +01001454config PCI_DOMAINS
1455 bool
1456 depends on PCI
1457
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001458config PCI_NANOENGINE
1459 bool "BSE nanoEngine PCI support"
1460 depends on SA1100_NANOENGINE
1461 help
1462 Enable PCI on the BSE nanoEngine board.
1463
Matthew Wilcox36e23592007-07-10 10:54:40 -06001464config PCI_SYSCALL
1465 def_bool PCI
1466
Linus Torvalds1da177e2005-04-16 15:20:36 -07001467# Select the host bridge type
1468config PCI_HOST_VIA82C505
1469 bool
1470 depends on PCI && ARCH_SHARK
1471 default y
1472
Mike Rapoporta0113a92007-11-25 08:55:34 +01001473config PCI_HOST_ITE8152
1474 bool
1475 depends on PCI && MACH_ARMCORE
1476 default y
1477 select DMABOUNCE
1478
Linus Torvalds1da177e2005-04-16 15:20:36 -07001479source "drivers/pci/Kconfig"
1480
1481source "drivers/pcmcia/Kconfig"
1482
1483endmenu
1484
1485menu "Kernel Features"
1486
Dave Martin3b556582011-12-07 15:38:04 +00001487config HAVE_SMP
1488 bool
1489 help
1490 This option should be selected by machines which have an SMP-
1491 capable CPU.
1492
1493 The only effect of this option is to make the SMP-related
1494 options available to the user for configuration.
1495
Linus Torvalds1da177e2005-04-16 15:20:36 -07001496config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001497 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001498 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001499 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001500 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001501 depends on MMU
Daniel Walker89c3ded2010-11-22 12:35:41 -08001502 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Russell Kingb1b3f492012-10-06 17:12:25 +01001503 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001504 help
1505 This enables support for systems with more than one CPU. If you have
1506 a system with only one CPU, like most personal computers, say N. If
1507 you have a system with more than one CPU, say Y.
1508
1509 If you say N here, the kernel will run on single and multiprocessor
1510 machines, but will use only one CPU of a multiprocessor machine. If
1511 you say Y here, the kernel will run on many, but not all, single
1512 processor machines. On a single processor machine, the kernel will
1513 run faster if you say N here.
1514
Paul Bolle395cf962011-08-15 02:02:26 +02001515 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001516 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001517 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001518
1519 If you don't know what to do here, say N.
1520
Russell Kingf00ec482010-09-04 10:47:48 +01001521config SMP_ON_UP
1522 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1523 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001524 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001525 default y
1526 help
1527 SMP kernels contain instructions which fail on non-SMP processors.
1528 Enabling this option allows the kernel to modify itself to make
1529 these instructions safe. Disabling it allows about 1K of space
1530 savings.
1531
1532 If you don't know what to do here, say Y.
1533
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001534config ARM_CPU_TOPOLOGY
1535 bool "Support cpu topology definition"
1536 depends on SMP && CPU_V7
1537 default y
1538 help
1539 Support ARM cpu topology definition. The MPIDR register defines
1540 affinity between processors which is then used to describe the cpu
1541 topology of an ARM System.
1542
1543config SCHED_MC
1544 bool "Multi-core scheduler support"
1545 depends on ARM_CPU_TOPOLOGY
1546 help
1547 Multi-core scheduler support improves the CPU scheduler's decision
1548 making when dealing with multi-core CPU chips at a cost of slightly
1549 increased overhead in some places. If unsure say N here.
1550
1551config SCHED_SMT
1552 bool "SMT scheduler support"
1553 depends on ARM_CPU_TOPOLOGY
1554 help
1555 Improves the CPU scheduler's decision making when dealing with
1556 MultiThreading at a cost of slightly increased overhead in some
1557 places. If unsure say N here.
1558
Russell Kinga8cbcd92009-05-16 11:51:14 +01001559config HAVE_ARM_SCU
1560 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001561 help
1562 This option enables support for the ARM system coherency unit
1563
Marc Zyngier022c03a2012-01-11 17:25:17 +00001564config ARM_ARCH_TIMER
1565 bool "Architected timer support"
1566 depends on CPU_V7
1567 help
1568 This option enables support for the ARM architected timer
1569
Russell Kingf32f4ce2009-05-16 12:14:21 +01001570config HAVE_ARM_TWD
1571 bool
1572 depends on SMP
1573 help
1574 This options enables support for the ARM timer and watchdog unit
1575
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001576choice
1577 prompt "Memory split"
1578 default VMSPLIT_3G
1579 help
1580 Select the desired split between kernel and user memory.
1581
1582 If you are not absolutely sure what you are doing, leave this
1583 option alone!
1584
1585 config VMSPLIT_3G
1586 bool "3G/1G user/kernel split"
1587 config VMSPLIT_2G
1588 bool "2G/2G user/kernel split"
1589 config VMSPLIT_1G
1590 bool "1G/3G user/kernel split"
1591endchoice
1592
1593config PAGE_OFFSET
1594 hex
1595 default 0x40000000 if VMSPLIT_1G
1596 default 0x80000000 if VMSPLIT_2G
1597 default 0xC0000000
1598
Linus Torvalds1da177e2005-04-16 15:20:36 -07001599config NR_CPUS
1600 int "Maximum number of CPUs (2-32)"
1601 range 2 32
1602 depends on SMP
1603 default "4"
1604
Russell Kinga054a812005-11-02 22:24:33 +00001605config HOTPLUG_CPU
1606 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1607 depends on SMP && HOTPLUG && EXPERIMENTAL
1608 help
1609 Say Y here to experiment with turning CPUs off and on. CPUs
1610 can be controlled through /sys/devices/system/cpu.
1611
Russell King37ee16a2005-11-08 19:08:05 +00001612config LOCAL_TIMERS
1613 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001614 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001615 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001616 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001617 help
1618 Enable support for local timers on SMP platforms, rather then the
1619 legacy IPI broadcast method. Local timers allows the system
1620 accounting to be spread across the timer interval, preventing a
1621 "thundering herd" at every timer tick.
1622
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001623config ARCH_NR_GPIO
1624 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001625 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Philippe Langlais70227a42012-02-13 10:51:22 +01001626 default 355 if ARCH_U8500
Paul Parsons9a01ec32012-02-27 01:58:45 +00001627 default 264 if MACH_H4700
Tarun Kanti DebBarma39f47d92012-04-26 18:31:17 +05301628 default 512 if SOC_OMAP5
Tony Priske9a91de2012-08-03 21:00:06 +12001629 default 288 if ARCH_VT8500
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001630 default 0
1631 help
1632 Maximum number of GPIOs in the system.
1633
1634 If unsure, leave the default value.
1635
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001636source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001637
Russell Kingf8065812006-03-02 22:41:59 +00001638config HZ
1639 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001640 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001641 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001642 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001643 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001644 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001645 default 100
1646
Catalin Marinas16c79652009-07-24 12:33:02 +01001647config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001648 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001649 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001650 select AEABI
1651 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001652 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001653 help
1654 By enabling this option, the kernel will be compiled in
1655 Thumb-2 mode. A compiler/assembler that understand the unified
1656 ARM-Thumb syntax is needed.
1657
1658 If unsure, say N.
1659
Dave Martin6f685c52011-03-03 11:41:12 +01001660config THUMB2_AVOID_R_ARM_THM_JUMP11
1661 bool "Work around buggy Thumb-2 short branch relocations in gas"
1662 depends on THUMB2_KERNEL && MODULES
1663 default y
1664 help
1665 Various binutils versions can resolve Thumb-2 branches to
1666 locally-defined, preemptible global symbols as short-range "b.n"
1667 branch instructions.
1668
1669 This is a problem, because there's no guarantee the final
1670 destination of the symbol, or any candidate locations for a
1671 trampoline, are within range of the branch. For this reason, the
1672 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1673 relocation in modules at all, and it makes little sense to add
1674 support.
1675
1676 The symptom is that the kernel fails with an "unsupported
1677 relocation" error when loading some modules.
1678
1679 Until fixed tools are available, passing
1680 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1681 code which hits this problem, at the cost of a bit of extra runtime
1682 stack usage in some cases.
1683
1684 The problem is described in more detail at:
1685 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1686
1687 Only Thumb-2 kernels are affected.
1688
1689 Unless you are sure your tools don't have this problem, say Y.
1690
Catalin Marinas0becb082009-07-24 12:32:53 +01001691config ARM_ASM_UNIFIED
1692 bool
1693
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001694config AEABI
1695 bool "Use the ARM EABI to compile the kernel"
1696 help
1697 This option allows for the kernel to be compiled using the latest
1698 ARM ABI (aka EABI). This is only useful if you are using a user
1699 space environment that is also compiled with EABI.
1700
1701 Since there are major incompatibilities between the legacy ABI and
1702 EABI, especially with regard to structure member alignment, this
1703 option also changes the kernel syscall calling convention to
1704 disambiguate both ABIs and allow for backward compatibility support
1705 (selected with CONFIG_OABI_COMPAT).
1706
1707 To use this you need GCC version 4.0.0 or later.
1708
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001709config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001710 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001711 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001712 default y
1713 help
1714 This option preserves the old syscall interface along with the
1715 new (ARM EABI) one. It also provides a compatibility layer to
1716 intercept syscalls that have structure arguments which layout
1717 in memory differs between the legacy ABI and the new ARM EABI
1718 (only for non "thumb" binaries). This option adds a tiny
1719 overhead to all syscalls and produces a slightly larger kernel.
1720 If you know you'll be using only pure EABI user space then you
1721 can say N here. If this option is not selected and you attempt
1722 to execute a legacy ABI binary then the result will be
1723 UNPREDICTABLE (in fact it can be predicted that it won't work
1724 at all). If in doubt say Y.
1725
Mel Gormaneb335752009-05-13 17:34:48 +01001726config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001727 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001728
Russell King05944d72006-11-30 20:43:51 +00001729config ARCH_SPARSEMEM_ENABLE
1730 bool
1731
Russell King07a2f732008-10-01 21:39:58 +01001732config ARCH_SPARSEMEM_DEFAULT
1733 def_bool ARCH_SPARSEMEM_ENABLE
1734
Russell King05944d72006-11-30 20:43:51 +00001735config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001736 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001737
Will Deacon7b7bf492011-05-19 13:21:14 +01001738config HAVE_ARCH_PFN_VALID
1739 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1740
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001741config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001742 bool "High Memory Support"
1743 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001744 help
1745 The address space of ARM processors is only 4 Gigabytes large
1746 and it has to accommodate user address space, kernel address
1747 space as well as some memory mapped IO. That means that, if you
1748 have a large amount of physical memory and/or IO, not all of the
1749 memory can be "permanently mapped" by the kernel. The physical
1750 memory that is not permanently mapped is called "high memory".
1751
1752 Depending on the selected kernel/user memory split, minimum
1753 vmalloc space and actual amount of RAM, you may not need this
1754 option which should result in a slightly faster kernel.
1755
1756 If unsure, say n.
1757
Russell King65cec8e2009-08-17 20:02:06 +01001758config HIGHPTE
1759 bool "Allocate 2nd-level pagetables from highmem"
1760 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001761
Jamie Iles1b8873a2010-02-02 20:25:44 +01001762config HW_PERF_EVENTS
1763 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001764 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001765 default y
1766 help
1767 Enable hardware performance counter support for perf events. If
1768 disabled, perf events will use software events only.
1769
Dave Hansen3f22ab22005-06-23 00:07:43 -07001770source "mm/Kconfig"
1771
Magnus Dammc1b2d972010-07-05 10:00:11 +01001772config FORCE_MAX_ZONEORDER
1773 int "Maximum zone order" if ARCH_SHMOBILE
1774 range 11 64 if ARCH_SHMOBILE
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001775 default "12" if SOC_AM33XX
Magnus Dammc1b2d972010-07-05 10:00:11 +01001776 default "9" if SA1111
1777 default "11"
1778 help
1779 The kernel memory allocator divides physically contiguous memory
1780 blocks into "zones", where each zone is a power of two number of
1781 pages. This option selects the largest power of two that the kernel
1782 keeps in the memory allocator. If you need to allocate very large
1783 blocks of physically contiguous memory, then you may need to
1784 increase this value.
1785
1786 This config option is actually maximum order plus one. For example,
1787 a value of 11 means that the largest free memory block is 2^10 pages.
1788
Linus Torvalds1da177e2005-04-16 15:20:36 -07001789config ALIGNMENT_TRAP
1790 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001791 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001792 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001793 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001794 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001795 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001796 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1797 address divisible by 4. On 32-bit ARM processors, these non-aligned
1798 fetch/store instructions will be emulated in software if you say
1799 here, which has a severe performance impact. This is necessary for
1800 correct operation of some network protocols. With an IP-only
1801 configuration it is safe to say N, otherwise say Y.
1802
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001803config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001804 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1805 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001806 default y if CPU_FEROCEON
1807 help
1808 Implement faster copy_to_user and clear_user methods for CPU
1809 cores where a 8-word STM instruction give significantly higher
1810 memory write throughput than a sequence of individual 32bit stores.
1811
1812 A possible side effect is a slight increase in scheduling latency
1813 between threads sharing the same address space if they invoke
1814 such copy operations with large buffers.
1815
1816 However, if the CPU data cache is using a write-allocate mode,
1817 this option is unlikely to provide any performance gain.
1818
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001819config SECCOMP
1820 bool
1821 prompt "Enable seccomp to safely compute untrusted bytecode"
1822 ---help---
1823 This kernel feature is useful for number crunching applications
1824 that may need to compute untrusted bytecode during their
1825 execution. By using pipes or other transports made available to
1826 the process as file descriptors supporting the read/write
1827 syscalls, it's possible to isolate those applications in
1828 their own address space using seccomp. Once seccomp is
1829 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1830 and the task is only allowed to execute a few safe syscalls
1831 defined by each seccomp mode.
1832
Nicolas Pitrec743f382010-05-24 23:55:42 -04001833config CC_STACKPROTECTOR
1834 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001835 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001836 help
1837 This option turns on the -fstack-protector GCC feature. This
1838 feature puts, at the beginning of functions, a canary value on
1839 the stack just before the return address, and validates
1840 the value just before actually returning. Stack based buffer
1841 overflows (that need to overwrite this return address) now also
1842 overwrite the canary, which gets detected and the attack is then
1843 neutralized via a kernel panic.
1844 This feature requires gcc version 4.2 or above.
1845
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001846config XEN_DOM0
1847 def_bool y
1848 depends on XEN
1849
1850config XEN
1851 bool "Xen guest support on ARM (EXPERIMENTAL)"
1852 depends on EXPERIMENTAL && ARM && OF
1853 help
1854 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1855
Linus Torvalds1da177e2005-04-16 15:20:36 -07001856endmenu
1857
1858menu "Boot options"
1859
Grant Likely9eb8f672011-04-28 14:27:20 -06001860config USE_OF
1861 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001862 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001863 select OF
1864 select OF_EARLY_FLATTREE
1865 help
1866 Include support for flattened device tree machine descriptions.
1867
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001868config ATAGS
1869 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1870 default y
1871 help
1872 This is the traditional way of passing data to the kernel at boot
1873 time. If you are solely relying on the flattened device tree (or
1874 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1875 to remove ATAGS support from your kernel binary. If unsure,
1876 leave this to y.
1877
1878config DEPRECATED_PARAM_STRUCT
1879 bool "Provide old way to pass kernel parameters"
1880 depends on ATAGS
1881 help
1882 This was deprecated in 2001 and announced to live on for 5 years.
1883 Some old boot loaders still use this way.
1884
Linus Torvalds1da177e2005-04-16 15:20:36 -07001885# Compressed boot loader in ROM. Yes, we really want to ask about
1886# TEXT and BSS so we preserve their values in the config files.
1887config ZBOOT_ROM_TEXT
1888 hex "Compressed ROM boot loader base address"
1889 default "0"
1890 help
1891 The physical address at which the ROM-able zImage is to be
1892 placed in the target. Platforms which normally make use of
1893 ROM-able zImage formats normally set this to a suitable
1894 value in their defconfig file.
1895
1896 If ZBOOT_ROM is not enabled, this has no effect.
1897
1898config ZBOOT_ROM_BSS
1899 hex "Compressed ROM boot loader BSS address"
1900 default "0"
1901 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001902 The base address of an area of read/write memory in the target
1903 for the ROM-able zImage which must be available while the
1904 decompressor is running. It must be large enough to hold the
1905 entire decompressed kernel plus an additional 128 KiB.
1906 Platforms which normally make use of ROM-able zImage formats
1907 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001908
1909 If ZBOOT_ROM is not enabled, this has no effect.
1910
1911config ZBOOT_ROM
1912 bool "Compressed boot loader in ROM/flash"
1913 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1914 help
1915 Say Y here if you intend to execute your compressed kernel image
1916 (zImage) directly from ROM or flash. If unsure, say N.
1917
Simon Horman090ab3f2011-04-26 06:29:53 +01001918choice
1919 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1920 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1921 default ZBOOT_ROM_NONE
1922 help
1923 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001924 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001925 kernel image to an MMC or SD card and boot the kernel straight
1926 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001927 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001928 rest the kernel image to RAM.
1929
1930config ZBOOT_ROM_NONE
1931 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1932 help
1933 Do not load image from SD or MMC
1934
Simon Hormanf45b1142011-01-11 04:01:08 +01001935config ZBOOT_ROM_MMCIF
1936 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001937 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001938 Load image from MMCIF hardware block.
1939
1940config ZBOOT_ROM_SH_MOBILE_SDHI
1941 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1942 help
1943 Load image from SDHI hardware block
1944
1945endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001946
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001947config ARM_APPENDED_DTB
1948 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1949 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1950 help
1951 With this option, the boot code will look for a device tree binary
1952 (DTB) appended to zImage
1953 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1954
1955 This is meant as a backward compatibility convenience for those
1956 systems with a bootloader that can't be upgraded to accommodate
1957 the documented boot protocol using a device tree.
1958
1959 Beware that there is very little in terms of protection against
1960 this option being confused by leftover garbage in memory that might
1961 look like a DTB header after a reboot if no actual DTB is appended
1962 to zImage. Do not leave this option active in a production kernel
1963 if you don't intend to always append a DTB. Proper passing of the
1964 location into r2 of a bootloader provided DTB is always preferable
1965 to this option.
1966
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001967config ARM_ATAG_DTB_COMPAT
1968 bool "Supplement the appended DTB with traditional ATAG information"
1969 depends on ARM_APPENDED_DTB
1970 help
1971 Some old bootloaders can't be updated to a DTB capable one, yet
1972 they provide ATAGs with memory configuration, the ramdisk address,
1973 the kernel cmdline string, etc. Such information is dynamically
1974 provided by the bootloader and can't always be stored in a static
1975 DTB. To allow a device tree enabled kernel to be used with such
1976 bootloaders, this option allows zImage to extract the information
1977 from the ATAG list and store it at run time into the appended DTB.
1978
Genoud Richardd0f34a112012-06-26 16:37:59 +01001979choice
1980 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
1981 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1982
1983config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1984 bool "Use bootloader kernel arguments if available"
1985 help
1986 Uses the command-line options passed by the boot loader instead of
1987 the device tree bootargs property. If the boot loader doesn't provide
1988 any, the device tree bootargs property will be used.
1989
1990config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
1991 bool "Extend with bootloader kernel arguments"
1992 help
1993 The command-line arguments provided by the boot loader will be
1994 appended to the the device tree bootargs property.
1995
1996endchoice
1997
Linus Torvalds1da177e2005-04-16 15:20:36 -07001998config CMDLINE
1999 string "Default kernel command string"
2000 default ""
2001 help
2002 On some architectures (EBSA110 and CATS), there is currently no way
2003 for the boot loader to pass arguments to the kernel. For these
2004 architectures, you should supply some command-line options at build
2005 time by entering them here. As a minimum, you should specify the
2006 memory size and the root device (e.g., mem=64M root=/dev/nfs).
2007
Victor Boivie4394c122011-05-04 17:07:55 +01002008choice
2009 prompt "Kernel command line type" if CMDLINE != ""
2010 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002011 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01002012
2013config CMDLINE_FROM_BOOTLOADER
2014 bool "Use bootloader kernel arguments if available"
2015 help
2016 Uses the command-line options passed by the boot loader. If
2017 the boot loader doesn't provide any, the default kernel command
2018 string provided in CMDLINE will be used.
2019
2020config CMDLINE_EXTEND
2021 bool "Extend bootloader kernel arguments"
2022 help
2023 The command-line arguments provided by the boot loader will be
2024 appended to the default kernel command string.
2025
Alexander Holler92d20402010-02-16 19:04:53 +01002026config CMDLINE_FORCE
2027 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01002028 help
2029 Always use the default kernel command string, even if the boot
2030 loader passes other arguments to the kernel.
2031 This is useful if you cannot or don't want to change the
2032 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01002033endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002034
Linus Torvalds1da177e2005-04-16 15:20:36 -07002035config XIP_KERNEL
2036 bool "Kernel Execute-In-Place from ROM"
Rob Herring387798b2012-09-06 13:41:12 -05002037 depends on !ZBOOT_ROM && !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07002038 help
2039 Execute-In-Place allows the kernel to run from non-volatile storage
2040 directly addressable by the CPU, such as NOR flash. This saves RAM
2041 space since the text section of the kernel is not loaded from flash
2042 to RAM. Read-write sections, such as the data section and stack,
2043 are still copied to RAM. The XIP kernel is not compressed since
2044 it has to run directly from flash, so it will take more space to
2045 store it. The flash address used to link the kernel object files,
2046 and for storing it, is configuration dependent. Therefore, if you
2047 say Y here, you must know the proper physical address where to
2048 store the kernel image depending on your own flash memory usage.
2049
2050 Also note that the make target becomes "make xipImage" rather than
2051 "make zImage" or "make Image". The final kernel binary to put in
2052 ROM memory will be arch/arm/boot/xipImage.
2053
2054 If unsure, say N.
2055
2056config XIP_PHYS_ADDR
2057 hex "XIP Kernel Physical Location"
2058 depends on XIP_KERNEL
2059 default "0x00080000"
2060 help
2061 This is the physical address in your flash memory the kernel will
2062 be linked for and stored to. This address is dependent on your
2063 own flash usage.
2064
Richard Purdiec587e4a2007-02-06 21:29:00 +01002065config KEXEC
2066 bool "Kexec system call (EXPERIMENTAL)"
Will Deacon02b73e22011-06-06 15:49:23 +01002067 depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002068 help
2069 kexec is a system call that implements the ability to shutdown your
2070 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002071 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002072 you can start any kernel with it, not just Linux.
2073
2074 It is an ongoing process to be certain the hardware in a machine
2075 is properly shutdown, so do not be surprised if this code does not
2076 initially work for you. It may help to enable device hotplugging
2077 support.
2078
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002079config ATAGS_PROC
2080 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002081 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01002082 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002083 help
2084 Should the atags used to boot the kernel be exported in an "atags"
2085 file in procfs. Useful with kexec.
2086
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002087config CRASH_DUMP
2088 bool "Build kdump crash kernel (EXPERIMENTAL)"
2089 depends on EXPERIMENTAL
2090 help
2091 Generate crash dump after being started by kexec. This should
2092 be normally only set in special crash dump kernels which are
2093 loaded in the main kernel with kexec-tools into a specially
2094 reserved region and then later executed after a crash by
2095 kdump/kexec. The crash dump kernel must be compiled to a
2096 memory address not used by the main kernel
2097
2098 For more details see Documentation/kdump/kdump.txt
2099
Eric Miaoe69edc792010-07-05 15:56:50 +02002100config AUTO_ZRELADDR
2101 bool "Auto calculation of the decompressed kernel image address"
2102 depends on !ZBOOT_ROM && !ARCH_U300
2103 help
2104 ZRELADDR is the physical address where the decompressed kernel
2105 image will be placed. If AUTO_ZRELADDR is selected, the address
2106 will be determined at run-time by masking the current IP with
2107 0xf8000000. This assumes the zImage being placed in the first 128MB
2108 from start of memory.
2109
Linus Torvalds1da177e2005-04-16 15:20:36 -07002110endmenu
2111
Russell Kingac9d7ef2008-08-18 17:26:00 +01002112menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002113
Ben Dooks89c52ed2009-07-30 23:23:24 +01002114if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002115
2116source "drivers/cpufreq/Kconfig"
2117
Yong Shen64f102b2010-10-21 21:18:59 +08002118config CPU_FREQ_IMX
2119 tristate "CPUfreq driver for i.MX CPUs"
2120 depends on ARCH_MXC && CPU_FREQ
Arnd Bergmannf637c4c2012-08-16 10:40:40 +00002121 select CPU_FREQ_TABLE
Yong Shen64f102b2010-10-21 21:18:59 +08002122 help
2123 This enables the CPUfreq driver for i.MX CPUs.
2124
Linus Torvalds1da177e2005-04-16 15:20:36 -07002125config CPU_FREQ_SA1100
2126 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002127
2128config CPU_FREQ_SA1110
2129 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002130
2131config CPU_FREQ_INTEGRATOR
2132 tristate "CPUfreq driver for ARM Integrator CPUs"
2133 depends on ARCH_INTEGRATOR && CPU_FREQ
2134 default y
2135 help
2136 This enables the CPUfreq driver for ARM Integrator CPUs.
2137
2138 For details, take a look at <file:Documentation/cpu-freq>.
2139
2140 If in doubt, say Y.
2141
Russell King9e2697f2007-12-14 13:30:14 +00002142config CPU_FREQ_PXA
2143 bool
2144 depends on CPU_FREQ && ARCH_PXA && PXA25x
2145 default y
2146 select CPU_FREQ_DEFAULT_GOV_USERSPACE
Russell Kingb1b3f492012-10-06 17:12:25 +01002147 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002148
Ben Dooks9d56c022009-07-30 23:23:25 +01002149config CPU_FREQ_S3C
2150 bool
2151 help
2152 Internal configuration node for common cpufreq on Samsung SoC
2153
2154config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002155 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09002156 depends on ARCH_S3C24XX && CPU_FREQ && EXPERIMENTAL
Ben Dooks9d56c022009-07-30 23:23:25 +01002157 select CPU_FREQ_S3C
2158 help
2159 This enables the CPUfreq driver for the Samsung S3C24XX family
2160 of CPUs.
2161
2162 For details, take a look at <file:Documentation/cpu-freq>.
2163
2164 If in doubt, say N.
2165
2166config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002167 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002168 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2169 help
2170 Compile in support for changing the PLL frequency from the
2171 S3C24XX series CPUfreq driver. The PLL takes time to settle
2172 after a frequency change, so by default it is not enabled.
2173
2174 This also means that the PLL tables for the selected CPU(s) will
2175 be built which may increase the size of the kernel image.
2176
2177config CPU_FREQ_S3C24XX_DEBUG
2178 bool "Debug CPUfreq Samsung driver core"
2179 depends on CPU_FREQ_S3C24XX
2180 help
2181 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2182
2183config CPU_FREQ_S3C24XX_IODEBUG
2184 bool "Debug CPUfreq Samsung driver IO timing"
2185 depends on CPU_FREQ_S3C24XX
2186 help
2187 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2188
Ben Dookse6d197a2009-07-30 23:23:42 +01002189config CPU_FREQ_S3C24XX_DEBUGFS
2190 bool "Export debugfs for CPUFreq"
2191 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2192 help
2193 Export status information via debugfs.
2194
Linus Torvalds1da177e2005-04-16 15:20:36 -07002195endif
2196
Russell Kingac9d7ef2008-08-18 17:26:00 +01002197source "drivers/cpuidle/Kconfig"
2198
2199endmenu
2200
Linus Torvalds1da177e2005-04-16 15:20:36 -07002201menu "Floating point emulation"
2202
2203comment "At least one emulation must be selected"
2204
2205config FPE_NWFPE
2206 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002207 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002208 ---help---
2209 Say Y to include the NWFPE floating point emulator in the kernel.
2210 This is necessary to run most binaries. Linux does not currently
2211 support floating point hardware so you need to say Y here even if
2212 your machine has an FPA or floating point co-processor podule.
2213
2214 You may say N here if you are going to load the Acorn FPEmulator
2215 early in the bootup.
2216
2217config FPE_NWFPE_XP
2218 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002219 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002220 help
2221 Say Y to include 80-bit support in the kernel floating-point
2222 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2223 Note that gcc does not generate 80-bit operations by default,
2224 so in most cases this option only enlarges the size of the
2225 floating point emulator without any good reason.
2226
2227 You almost surely want to say N here.
2228
2229config FPE_FASTFPE
2230 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002231 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002232 ---help---
2233 Say Y here to include the FAST floating point emulator in the kernel.
2234 This is an experimental much faster emulator which now also has full
2235 precision for the mantissa. It does not support any exceptions.
2236 It is very simple, and approximately 3-6 times faster than NWFPE.
2237
2238 It should be sufficient for most programs. It may be not suitable
2239 for scientific calculations, but you have to check this for yourself.
2240 If you do not feel you need a faster FP emulation you should better
2241 choose NWFPE.
2242
2243config VFP
2244 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002245 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002246 help
2247 Say Y to include VFP support code in the kernel. This is needed
2248 if your hardware includes a VFP unit.
2249
2250 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2251 release notes and additional status information.
2252
2253 Say N if your target does not have VFP hardware.
2254
Catalin Marinas25ebee02007-09-25 15:22:24 +01002255config VFPv3
2256 bool
2257 depends on VFP
2258 default y if CPU_V7
2259
Catalin Marinasb5872db2008-01-10 19:16:17 +01002260config NEON
2261 bool "Advanced SIMD (NEON) Extension support"
2262 depends on VFPv3 && CPU_V7
2263 help
2264 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2265 Extension.
2266
Linus Torvalds1da177e2005-04-16 15:20:36 -07002267endmenu
2268
2269menu "Userspace binary formats"
2270
2271source "fs/Kconfig.binfmt"
2272
2273config ARTHUR
2274 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002275 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002276 help
2277 Say Y here to include the kernel code necessary if you want to run
2278 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2279 experimental; if this sounds frightening, say N and sleep in peace.
2280 You can also say M here to compile this support as a module (which
2281 will be called arthur).
2282
2283endmenu
2284
2285menu "Power management options"
2286
Russell Kingeceab4a2005-11-15 11:31:41 +00002287source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002288
Johannes Bergf4cb5702007-12-08 02:14:00 +01002289config ARCH_SUSPEND_POSSIBLE
Stephen Warren4b1082c2012-09-05 09:58:27 -06002290 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002291 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
Chao Xie3f5d0812012-05-07 11:23:58 +08002292 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002293 def_bool y
2294
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002295config ARM_CPU_SUSPEND
2296 def_bool PM_SLEEP
2297
Linus Torvalds1da177e2005-04-16 15:20:36 -07002298endmenu
2299
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002300source "net/Kconfig"
2301
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002302source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002303
2304source "fs/Kconfig"
2305
Linus Torvalds1da177e2005-04-16 15:20:36 -07002306source "arch/arm/Kconfig.debug"
2307
2308source "security/Kconfig"
2309
2310source "crypto/Kconfig"
2311
2312source "lib/Kconfig"