blob: 1bc092eb42e60080c0b206c13291cd330fedc35c [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
15 select GENERIC_PCI_IOMAP
16 select GENERIC_SMP_IDLE_THREAD
17 select GENERIC_STRNCPY_FROM_USER
18 select GENERIC_STRNLEN_USER
19 select HARDIRQS_SW_RESEND
20 select HAVE_AOUT
Rabin Vincent09f05d82012-02-18 17:52:41 +010021 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
Jason Wessel5cbad0e2008-02-20 13:33:40 -060022 select HAVE_ARCH_KGDB
Wade Farnsworth0693bf62012-04-04 16:19:47 +010023 select HAVE_ARCH_TRACEHOOK
Russell Kingb1b3f492012-10-06 17:12:25 +010024 select HAVE_BPF_JIT
25 select HAVE_C_RECORDMCOUNT
26 select HAVE_DEBUG_KMEMLEAK
27 select HAVE_DMA_API_DEBUG
28 select HAVE_DMA_ATTRS
29 select HAVE_DMA_CONTIGUOUS if MMU
30 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
31 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
32 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
33 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
34 select HAVE_GENERIC_DMA_COHERENT
35 select HAVE_GENERIC_HARDIRQS
36 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
37 select HAVE_IDE if PCI || ISA || PCMCIA
38 select HAVE_IRQ_WORK
39 select HAVE_KERNEL_GZIP
40 select HAVE_KERNEL_LZMA
41 select HAVE_KERNEL_LZO
42 select HAVE_KERNEL_XZ
Jon Medhurst856bc352011-06-14 13:09:39 +010043 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080044 select HAVE_KRETPROBES if (HAVE_KPROBES)
Russell Kingb1b3f492012-10-06 17:12:25 +010045 select HAVE_MEMBLOCK
46 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jamie Iles7ada1892010-02-02 20:24:58 +010047 select HAVE_PERF_EVENTS
Will Deacone513f8b2010-06-25 12:24:53 +010048 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kingb1b3f492012-10-06 17:12:25 +010049 select HAVE_SYSCALL_TRACEPOINTS
Catalin Marinasaf1839e2012-10-08 16:28:08 -070050 select HAVE_UID16
Anna-Maria Gleixner3d92a712012-05-18 16:45:44 +000051 select KTIME_SCALAR
Russell Kingb1b3f492012-10-06 17:12:25 +010052 select PERF_USE_VMALLOC
53 select RTC_LIB
54 select SYS_SUPPORTS_APM_EMULATION
Linus Torvalds1da177e2005-04-16 15:20:36 -070055 help
56 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000057 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070058 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000059 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070060 Europe. There is an ARM Linux project with a web page at
61 <http://www.arm.linux.org.uk/>.
62
Russell King74facff2011-06-02 11:16:22 +010063config ARM_HAS_SG_CHAIN
64 bool
65
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020066config NEED_SG_DMA_LENGTH
67 bool
68
69config ARM_DMA_USE_IOMMU
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020070 bool
Russell Kingb1b3f492012-10-06 17:12:25 +010071 select ARM_HAS_SG_CHAIN
72 select NEED_SG_DMA_LENGTH
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020073
Russell King1a189b92008-04-13 21:41:55 +010074config HAVE_PWM
75 bool
76
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010077config MIGHT_HAVE_PCI
78 bool
79
Ralf Baechle75e71532007-02-09 17:08:58 +000080config SYS_SUPPORTS_APM_EMULATION
81 bool
82
David Brownell0a938b92007-03-05 00:30:18 -080083config GENERIC_GPIO
84 bool
David Brownell0a938b92007-03-05 00:30:18 -080085
Linus Walleijbc581772009-09-15 17:30:37 +010086config HAVE_TCM
87 bool
88 select GENERIC_ALLOCATOR
89
Russell Kinge119bff2010-01-10 17:23:29 +000090config HAVE_PROC_CPU
91 bool
92
Al Viro5ea81762007-02-11 15:41:31 +000093config NO_IOPORT
94 bool
Al Viro5ea81762007-02-11 15:41:31 +000095
Linus Torvalds1da177e2005-04-16 15:20:36 -070096config EISA
97 bool
98 ---help---
99 The Extended Industry Standard Architecture (EISA) bus was
100 developed as an open alternative to the IBM MicroChannel bus.
101
102 The EISA bus provided some of the features of the IBM MicroChannel
103 bus while maintaining backward compatibility with cards made for
104 the older ISA bus. The EISA bus saw limited use between 1988 and
105 1995 when it was made obsolete by the PCI bus.
106
107 Say Y here if you are building a kernel for an EISA-based machine.
108
109 Otherwise, say N.
110
111config SBUS
112 bool
113
Russell Kingf16fb1e2007-04-28 09:59:37 +0100114config STACKTRACE_SUPPORT
115 bool
116 default y
117
Nicolas Pitref76e9152008-04-24 01:31:46 -0400118config HAVE_LATENCYTOP_SUPPORT
119 bool
120 depends on !SMP
121 default y
122
Russell Kingf16fb1e2007-04-28 09:59:37 +0100123config LOCKDEP_SUPPORT
124 bool
125 default y
126
Russell King7ad1bcb2006-08-27 12:07:02 +0100127config TRACE_IRQFLAGS_SUPPORT
128 bool
129 default y
130
Linus Torvalds1da177e2005-04-16 15:20:36 -0700131config RWSEM_GENERIC_SPINLOCK
132 bool
133 default y
134
135config RWSEM_XCHGADD_ALGORITHM
136 bool
137
David Howellsf0d1b0b2006-12-08 02:37:49 -0800138config ARCH_HAS_ILOG2_U32
139 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800140
141config ARCH_HAS_ILOG2_U64
142 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800143
Ben Dooks89c52ed2009-07-30 23:23:24 +0100144config ARCH_HAS_CPUFREQ
145 bool
146 help
147 Internal node to signify that the ARCH has CPUFREQ support
148 and that the relevant menu configurations are displayed for
149 it.
150
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800151config GENERIC_HWEIGHT
152 bool
153 default y
154
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155config GENERIC_CALIBRATE_DELAY
156 bool
157 default y
158
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100159config ARCH_MAY_HAVE_PC_FDC
160 bool
161
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800162config ZONE_DMA
163 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800164
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800165config NEED_DMA_MAP_STATE
166 def_bool y
167
Rob Herring58af4a22012-03-20 14:33:01 -0500168config ARCH_HAS_DMA_SET_COHERENT_MASK
169 bool
170
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171config GENERIC_ISA_DMA
172 bool
173
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174config FIQ
175 bool
176
Rob Herring13a50452012-02-07 09:28:22 -0600177config NEED_RET_TO_USER
178 bool
179
Al Viro034d2f52005-12-19 16:27:59 -0500180config ARCH_MTD_XIP
181 bool
182
Hyok S. Choic760fc12006-03-27 15:18:50 +0100183config VECTORS_BASE
184 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900185 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100186 default DRAM_BASE if REMAP_VECTORS_TO_RAM
187 default 0x00000000
188 help
189 The base address of exception vectors.
190
Russell Kingdc21af92011-01-04 19:09:43 +0000191config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100192 bool "Patch physical to virtual translations at runtime" if EMBEDDED
193 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100194 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000195 depends on !ARCH_REALVIEW || !SPARSEMEM
196 help
Russell King111e9a52011-05-12 10:02:42 +0100197 Patch phys-to-virt and virt-to-phys translation functions at
198 boot and module load time according to the position of the
199 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000200
Russell King111e9a52011-05-12 10:02:42 +0100201 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100202 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000203
Russell Kingc1beced2011-08-10 10:23:45 +0100204 Only disable this option if you know that you do not require
205 this feature (eg, building a kernel for a single machine) and
206 you need to shrink the kernel to the minimal size.
207
Rob Herring01464222012-08-28 13:06:41 -0500208config NEED_MACH_GPIO_H
209 bool
210 help
211 Select this when mach/gpio.h is required to provide special
212 definitions for this platform. The need for mach/gpio.h should
213 be avoided when possible.
214
Rob Herringc334bc12012-03-04 22:03:33 -0600215config NEED_MACH_IO_H
216 bool
217 help
218 Select this when mach/io.h is required to provide special
219 definitions for this platform. The need for mach/io.h should
220 be avoided when possible.
221
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400222config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400223 bool
Russell King111e9a52011-05-12 10:02:42 +0100224 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400225 Select this when mach/memory.h is required to provide special
226 definitions for this platform. The need for mach/memory.h should
227 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400228
229config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100230 hex "Physical address of main memory" if MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400231 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre974c0722011-12-02 23:09:42 +0100232 default DRAM_BASE if !MMU
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400233 help
234 Please provide the physical address corresponding to the
235 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000236
Simon Glass87e040b2011-08-16 23:44:26 +0100237config GENERIC_BUG
238 def_bool y
239 depends on BUG
240
Linus Torvalds1da177e2005-04-16 15:20:36 -0700241source "init/Kconfig"
242
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700243source "kernel/Kconfig.freezer"
244
Linus Torvalds1da177e2005-04-16 15:20:36 -0700245menu "System Type"
246
Hyok S. Choi3c427972009-07-24 12:35:00 +0100247config MMU
248 bool "MMU-based Paged Memory Management Support"
249 default y
250 help
251 Select if you want MMU-based virtualised addressing space
252 support by paged memory management. If unsure, say 'Y'.
253
Russell Kingccf50e22010-03-15 19:03:06 +0000254#
255# The "ARM system type" choice list is ordered alphabetically by option
256# text. Please add new entries in the option alphabetic order.
257#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700258choice
259 prompt "ARM system type"
Rob Herring387798b2012-09-06 13:41:12 -0500260 default ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700261
Rob Herring387798b2012-09-06 13:41:12 -0500262config ARCH_MULTIPLATFORM
263 bool "Allow multiple platforms to be selected"
Russell Kingb1b3f492012-10-06 17:12:25 +0100264 depends on MMU
Rob Herring387798b2012-09-06 13:41:12 -0500265 select ARM_PATCH_PHYS_VIRT
266 select AUTO_ZRELADDR
Dinh Nguyen66314222012-07-18 16:07:18 -0600267 select COMMON_CLK
Rob Herring387798b2012-09-06 13:41:12 -0500268 select MULTI_IRQ_HANDLER
Dinh Nguyen66314222012-07-18 16:07:18 -0600269 select SPARSE_IRQ
270 select USE_OF
Dinh Nguyen66314222012-07-18 16:07:18 -0600271
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100272config ARCH_INTEGRATOR
273 bool "ARM Ltd. Integrator family"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100274 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100275 select ARM_AMBA
Linus Walleija6131632012-06-11 17:33:12 +0200276 select COMMON_CLK
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200277 select COMMON_CLK_VERSATILE
Russell Kingb1b3f492012-10-06 17:12:25 +0100278 select GENERIC_CLOCKEVENTS
Linus Walleij9904f792011-12-09 10:29:23 +0100279 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000280 select ICST
Russell Kingb1b3f492012-10-06 17:12:25 +0100281 select MULTI_IRQ_HANDLER
282 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000283 select PLAT_VERSATILE
Russell Kingc41b16f2011-01-19 15:32:15 +0000284 select PLAT_VERSATILE_FPGA_IRQ
Linus Walleij695436e2012-02-26 10:46:48 +0100285 select SPARSE_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100286 help
287 Support for ARM's Integrator platform.
288
289config ARCH_REALVIEW
290 bool "ARM Ltd. RealView family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100291 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100292 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100293 select ARM_TIMER_SP804
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200294 select COMMON_CLK
295 select COMMON_CLK_VERSATILE
Catalin Marinasae30cea2008-02-04 17:26:55 +0100296 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100297 select GPIO_PL061 if GPIOLIB
298 select ICST
299 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000300 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000301 select PLAT_VERSATILE_CLCD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100302 help
303 This enables support for ARM Ltd RealView boards.
304
305config ARCH_VERSATILE
306 bool "ARM Ltd. Versatile family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100307 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100308 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100309 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100310 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100311 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100312 select GENERIC_CLOCKEVENTS
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900313 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000314 select ICST
Russell Kingf4b8b312010-01-14 12:48:06 +0000315 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000316 select PLAT_VERSATILE_CLCD
Russell Kingb1b3f492012-10-06 17:12:25 +0100317 select PLAT_VERSATILE_CLOCK
Russell Kingc41b16f2011-01-19 15:32:15 +0000318 select PLAT_VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100319 help
320 This enables support for ARM Ltd Versatile board.
321
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100322config ARCH_AT91
323 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100324 select ARCH_REQUIRE_GPIOLIB
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100325 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100326 select HAVE_CLK
Nicolas Ferree2615012011-11-22 22:26:09 +0100327 select IRQ_DOMAIN
Rob Herring01464222012-08-28 13:06:41 -0500328 select NEED_MACH_GPIO_H
Rob Herring1ac02d72012-04-04 17:48:04 -0500329 select NEED_MACH_IO_H if PCCARD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100330 help
Nicolas Ferre929e9942012-03-15 12:21:12 +0100331 This enables support for systems based on Atmel
332 AT91RM9200 and AT91SAM9* processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100333
Simon Arlottec9653b2012-05-26 01:04:43 -0600334config ARCH_BCM2835
335 bool "Broadcom BCM2835 family"
336 select ARCH_WANT_OPTIONAL_GPIOLIB
337 select ARM_AMBA
338 select ARM_ERRATA_411920
339 select ARM_TIMER_SP804
340 select CLKDEV_LOOKUP
341 select COMMON_CLK
342 select CPU_V6
343 select GENERIC_CLOCKEVENTS
344 select MULTI_IRQ_HANDLER
345 select SPARSE_IRQ
346 select USE_OF
347 help
348 This enables support for the Broadcom BCM2835 SoC. This SoC is
349 use in the Raspberry Pi, and Roku 2 devices.
350
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300351config ARCH_CNS3XXX
352 bool "Cavium Networks CNS3XXX family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100353 select ARM_GIC
Imre Kaloz00d27112011-07-07 12:19:09 +0200354 select CPU_V6K
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300355 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000356 select MIGHT_HAVE_CACHE_L2X0
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100357 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400358 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300359 help
360 Support for Cavium Networks CNS3XXX platform.
361
Russell King93e22562012-10-12 14:20:52 +0100362config ARCH_CLPS711X
363 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
364 select ARCH_USES_GETTIMEOFFSET
365 select CLKDEV_LOOKUP
366 select COMMON_CLK
367 select CPU_ARM720T
368 select NEED_MACH_MEMORY_H
369 help
370 Support for Cirrus Logic 711x/721x/731x based boards.
371
Russell King788c9702009-04-26 14:21:59 +0100372config ARCH_GEMINI
373 bool "Cortina Systems Gemini"
Russell King788c9702009-04-26 14:21:59 +0100374 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000375 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100376 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100377 help
378 Support for the Cortina Systems Gemini family SoCs
379
Barry Song156a0992012-08-23 13:41:58 +0800380config ARCH_SIRF
381 bool "CSR SiRF"
Arnd Bergmannf6387092012-07-04 14:33:01 +0000382 select ARCH_REQUIRE_GPIOLIB
Binghua Duan198678b2012-08-20 06:42:36 +0000383 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100384 select GENERIC_CLOCKEVENTS
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200385 select GENERIC_IRQ_CHIP
Dave Martince5ea9f2011-11-29 15:56:19 +0000386 select MIGHT_HAVE_CACHE_L2X0
Russell Kingb1b3f492012-10-06 17:12:25 +0100387 select NO_IOPORT
Barry Songcbd8d842012-05-15 10:35:46 +0800388 select PINCTRL
389 select PINCTRL_SIRF
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200390 select USE_OF
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200391 help
Barry Song156a0992012-08-23 13:41:58 +0800392 Support for CSR SiRFprimaII/Marco/Polo platforms
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200393
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394config ARCH_EBSA110
395 bool "EBSA-110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100396 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000397 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100398 select ISA
Rob Herringc334bc12012-03-04 22:03:33 -0600399 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400400 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100401 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700402 help
403 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000404 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700405 Ethernet interface, two PCMCIA sockets, two serial ports and a
406 parallel port.
407
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000408config ARCH_EP93XX
409 bool "EP93xx-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100410 select ARCH_HAS_HOLES_MEMORYMODEL
411 select ARCH_REQUIRE_GPIOLIB
412 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000413 select ARM_AMBA
414 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100415 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100416 select CPU_ARM920T
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100417 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000418 help
419 This enables support for the Cirrus EP93xx series of CPUs.
420
Linus Torvalds1da177e2005-04-16 15:20:36 -0700421config ARCH_FOOTBRIDGE
422 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000423 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700424 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000425 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200426 select HAVE_IDE
Rob Herring8ef6e622012-03-01 20:48:12 -0600427 select NEED_MACH_IO_H if !MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400428 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000429 help
430 Support for systems based on the DC21285 companion chip
431 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700432
Russell King788c9702009-04-26 14:21:59 +0100433config ARCH_MXC
434 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100435 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100436 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100437 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100438 select GENERIC_CLOCKEVENTS
Shawn Guo8b6c44f2011-06-07 13:59:14 +0800439 select GENERIC_IRQ_CHIP
Sascha Hauerffa2ea32011-09-20 14:31:24 +0200440 select MULTI_IRQ_HANDLER
Shawn Guo8842a9e2012-06-14 11:16:14 +0800441 select SPARSE_IRQ
Uwe Kleine-König3e62af82012-07-06 09:47:20 +0200442 select USE_OF
Russell King788c9702009-04-26 14:21:59 +0100443 help
444 Support for Freescale MXC/iMX-based family of processors
445
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800446config ARCH_MXS
447 bool "Freescale MXS-based"
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800448 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100449 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100450 select CLKSRC_MMIO
Shawn Guo26646812012-04-29 00:02:39 +0800451 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100452 select GENERIC_CLOCKEVENTS
Shawn Guo6abda3e2011-12-20 16:12:34 +0800453 select HAVE_CLK_PREPARE
Shawn Guo4e0a1b82012-08-20 10:14:56 +0800454 select MULTI_IRQ_HANDLER
Shawn Guoa0f5e362012-05-06 23:13:13 +0800455 select PINCTRL
Shawn Guoc2668202012-08-20 21:52:12 +0800456 select SPARSE_IRQ
Shawn Guo6c4d4ef2012-05-04 21:42:41 +0800457 select USE_OF
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800458 help
459 Support for Freescale MXS-based family of processors
460
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100461config ARCH_NETX
462 bool "Hilscher NetX based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100463 select ARM_VIC
Russell King234b6ced2011-05-08 14:09:47 +0100464 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000465 select CPU_ARM926T
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100466 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000467 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100468 This enables support for systems based on the Hilscher NetX Soc
469
470config ARCH_H720X
471 bool "Hynix HMS720x-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100472 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000473 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100474 select ISA_DMA_API
475 help
476 This enables support for systems based on the Hynix HMS720x
477
Russell King3b938be2007-05-12 11:25:44 +0100478config ARCH_IOP13XX
479 bool "IOP13xx-based"
480 depends on MMU
Russell King3b938be2007-05-12 11:25:44 +0100481 select ARCH_SUPPORTS_MSI
Russell Kingb1b3f492012-10-06 17:12:25 +0100482 select CPU_XSC3
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400483 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600484 select NEED_RET_TO_USER
Russell Kingb1b3f492012-10-06 17:12:25 +0100485 select PCI
486 select PLAT_IOP
487 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100488 help
489 Support for Intel's IOP13XX (XScale) family of processors.
490
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100491config ARCH_IOP32X
492 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100493 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100494 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000495 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500496 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600497 select NEED_RET_TO_USER
Russell Kingf7e68bb2005-05-05 14:49:01 +0100498 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100499 select PLAT_IOP
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000500 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100501 Support for Intel's 80219 and IOP32X (XScale) family of
502 processors.
503
504config ARCH_IOP33X
505 bool "IOP33x-based"
506 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100507 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000508 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500509 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600510 select NEED_RET_TO_USER
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100511 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100512 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100513 help
514 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700515
Russell King3b938be2007-05-12 11:25:44 +0100516config ARCH_IXP4XX
517 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100518 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500519 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell Kingb1b3f492012-10-06 17:12:25 +0100520 select ARCH_REQUIRE_GPIOLIB
Russell King234b6ced2011-05-08 14:09:47 +0100521 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000522 select CPU_XSCALE
Russell Kingb1b3f492012-10-06 17:12:25 +0100523 select DMABOUNCE if PCI
Russell King3b938be2007-05-12 11:25:44 +0100524 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100525 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600526 select NEED_MACH_IO_H
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100527 help
Russell King3b938be2007-05-12 11:25:44 +0100528 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100529
Saeed Bisharaedabd382009-08-06 15:12:43 +0300530config ARCH_DOVE
531 bool "Marvell Dove"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300532 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100533 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300534 select GENERIC_CLOCKEVENTS
Russell King0f81bd42012-09-09 20:34:13 +0100535 select MIGHT_HAVE_PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200536 select PLAT_ORION_LEGACY
Russell King0f81bd42012-09-09 20:34:13 +0100537 select USB_ARCH_HAS_EHCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300538 help
539 Support for the Marvell Dove SoC 88AP510
540
Saeed Bishara651c74c2008-06-22 22:45:06 +0200541config ARCH_KIRKWOOD
542 bool "Marvell Kirkwood"
Erik Benadaa8865652009-05-28 17:08:55 -0700543 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100544 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200545 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100546 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200547 select PLAT_ORION_LEGACY
Saeed Bishara651c74c2008-06-22 22:45:06 +0200548 help
549 Support for the following Marvell Kirkwood series SoCs:
550 88F6180, 88F6192 and 88F6281.
551
Russell King788c9702009-04-26 14:21:59 +0100552config ARCH_MV78XX0
553 bool "Marvell MV78xx0"
Erik Benadaa8865652009-05-28 17:08:55 -0700554 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100555 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100556 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100557 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200558 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100559 help
560 Support for the following Marvell MV78xx0 series SoCs:
561 MV781x0, MV782x0.
562
563config ARCH_ORION5X
564 bool "Marvell Orion"
565 depends on MMU
Erik Benadaa8865652009-05-28 17:08:55 -0700566 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100567 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100568 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100569 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200570 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100571 help
572 Support for the following Marvell Orion 5x series SoCs:
573 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
574 Orion-2 (5281), Orion-1-90 (6183).
575
576config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500577 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100578 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100579 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100580 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100581 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100582 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800583 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800584 select IRQ_DOMAIN
Russell Kingb1b3f492012-10-06 17:12:25 +0100585 select NEED_MACH_GPIO_H
Russell King788c9702009-04-26 14:21:59 +0100586 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400587 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100588 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500589 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100590
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100591config ARCH_KS8695
592 bool "Micrel/Kendin KS8695"
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100593 select ARCH_REQUIRE_GPIOLIB
Linus Walleijc7e783d2012-08-29 20:27:22 +0200594 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100595 select CPU_ARM922T
Linus Walleijc7e783d2012-08-29 20:27:22 +0200596 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100597 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100598 help
599 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
600 System-on-Chip devices.
601
Russell King788c9702009-04-26 14:21:59 +0100602config ARCH_W90X900
603 bool "Nuvoton W90X900 CPU"
wanzongshunc52d3d62009-06-10 15:49:32 +0100604 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100605 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100606 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100607 select CPU_ARM926T
wanzongshun58b53692009-08-14 15:36:44 +0100608 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200609 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100610 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
611 At present, the w90x900 has been renamed nuc900, regarding
612 the ARM series product line, you can login the following
613 link address to know more.
614
615 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
616 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400617
Russell King93e22562012-10-12 14:20:52 +0100618config ARCH_LPC32XX
619 bool "NXP LPC32XX"
620 select ARCH_REQUIRE_GPIOLIB
621 select ARM_AMBA
622 select CLKDEV_LOOKUP
623 select CLKSRC_MMIO
624 select CPU_ARM926T
625 select GENERIC_CLOCKEVENTS
626 select HAVE_IDE
627 select HAVE_PWM
628 select USB_ARCH_HAS_OHCI
629 select USE_OF
630 help
631 Support for the NXP LPC32XX family of processors
632
Erik Gillingc5f80062010-01-21 16:53:02 -0800633config ARCH_TEGRA
634 bool "NVIDIA Tegra"
Russell Kingb1b3f492012-10-06 17:12:25 +0100635 select ARCH_HAS_CPUFREQ
Russell King40737232011-01-06 22:32:52 +0000636 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100637 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100638 select COMMON_CLK
Erik Gillingc5f80062010-01-21 16:53:02 -0800639 select GENERIC_CLOCKEVENTS
640 select GENERIC_GPIO
641 select HAVE_CLK
Dave Martin3b556582011-12-07 15:38:04 +0000642 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000643 select MIGHT_HAVE_CACHE_L2X0
Stephen Warren2c95b7e2012-05-21 15:07:19 -0600644 select USE_OF
Erik Gillingc5f80062010-01-21 16:53:02 -0800645 help
646 This enables support for NVIDIA Tegra based systems (Tegra APX,
647 Tegra 6xx and Tegra 2 series).
648
Linus Torvalds1da177e2005-04-16 15:20:36 -0700649config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700650 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100651 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100652 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100653 select ARCH_MTD_XIP
654 select ARCH_REQUIRE_GPIOLIB
655 select ARM_CPU_SUSPEND if PM
656 select AUTO_ZRELADDR
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100657 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100658 select CLKSRC_MMIO
Eric Miao981d0f32007-07-24 01:22:43 +0100659 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800660 select GPIO_PXA
Russell Kingb1b3f492012-10-06 17:12:25 +0100661 select HAVE_IDE
662 select MULTI_IRQ_HANDLER
663 select NEED_MACH_GPIO_H
Eric Miaobd5ce432009-01-20 12:06:01 +0800664 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800665 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000666 help
eric miao2c8086a2007-09-11 19:13:17 -0700667 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700668
Russell King788c9702009-04-26 14:21:59 +0100669config ARCH_MSM
670 bool "Qualcomm MSM"
Pavel Machek923a0812010-06-02 11:11:12 -0700671 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800672 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100673 select GENERIC_CLOCKEVENTS
674 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800675 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800676 Support for Qualcomm MSM/QSD based systems. This runs on the
677 apps processor of the MSM/QSD and depends on a shared memory
678 interface to the modem processor which runs the baseband
679 stack and controls some vital subsystems
680 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800681
Magnus Dammc793c1b2010-02-05 11:14:49 +0000682config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900683 bool "Renesas SH-Mobile / R-Mobile"
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900684 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100685 select GENERIC_CLOCKEVENTS
686 select HAVE_CLK
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900687 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000688 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000689 select MIGHT_HAVE_CACHE_L2X0
Magnus Damm60f14352010-12-28 08:26:52 +0000690 select MULTI_IRQ_HANDLER
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400691 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100692 select NO_IOPORT
693 select PM_GENERIC_DOMAINS if PM
694 select SPARSE_IRQ
Magnus Dammc793c1b2010-02-05 11:14:49 +0000695 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900696 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000697
Linus Torvalds1da177e2005-04-16 15:20:36 -0700698config ARCH_RPC
699 bool "RiscPC"
700 select ARCH_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100701 select ARCH_MAY_HAVE_PC_FDC
Russell King07f841b2008-10-01 17:11:06 +0100702 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000703 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100704 select FIQ
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200705 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100706 select HAVE_PATA_PLATFORM
707 select ISA_DMA_API
Rob Herringc334bc12012-03-04 22:03:33 -0600708 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400709 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100710 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700711 help
712 On the Acorn Risc-PC, Linux can support the internal IDE disk and
713 CD-ROM interface, serial and parallel port, and the floppy drive.
714
715config ARCH_SA1100
716 bool "SA1100-based"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100717 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100718 select ARCH_MTD_XIP
Michael Buesch7444a722008-07-25 01:46:11 -0700719 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100720 select ARCH_SPARSEMEM_ENABLE
721 select CLKDEV_LOOKUP
722 select CLKSRC_MMIO
723 select CPU_FREQ
724 select CPU_SA1100
725 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200726 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100727 select ISA
Rob Herring01464222012-08-28 13:06:41 -0500728 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400729 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100730 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000731 help
732 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700733
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900734config ARCH_S3C24XX
735 bool "Samsung S3C24XX SoCs"
Ben Dooks9d56c022009-07-30 23:23:25 +0100736 select ARCH_HAS_CPUFREQ
John Stultz5cfc8ee2010-03-24 00:22:36 +0000737 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100738 select CLKDEV_LOOKUP
739 select GENERIC_GPIO
740 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900741 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900742 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100743 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500744 select NEED_MACH_GPIO_H
Rob Herringc334bc12012-03-04 22:03:33 -0600745 select NEED_MACH_IO_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700746 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900747 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
748 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
749 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
750 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900751
Ben Dooksa08ab632008-10-21 14:06:39 +0100752config ARCH_S3C64XX
753 bool "Samsung S3C64XX"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100754 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900755 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100756 select ARCH_USES_GETTIMEOFFSET
757 select ARM_VIC
758 select CLKDEV_LOOKUP
759 select CPU_V6
760 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900761 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900762 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100763 select HAVE_TCM
Rob Herring01464222012-08-28 13:06:41 -0500764 select NEED_MACH_GPIO_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100765 select NO_IOPORT
766 select PLAT_SAMSUNG
767 select S3C_DEV_NAND
768 select S3C_GPIO_TRACK
769 select SAMSUNG_CLKSRC
770 select SAMSUNG_GPIOLIB_4BIT
771 select SAMSUNG_IRQ_VIC_TIMER
772 select USB_ARCH_HAS_OHCI
Ben Dooksa08ab632008-10-21 14:06:39 +0100773 help
774 Samsung S3C64XX series based systems
775
Kukjin Kim49b7a492010-09-07 15:47:18 +0900776config ARCH_S5P64X0
777 bool "Samsung S5P6440 S5P6450"
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900778 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900779 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100780 select CPU_V6
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900781 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100782 select GENERIC_GPIO
783 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900784 select HAVE_S3C2410_I2C if I2C
Russell Kingb1b3f492012-10-06 17:12:25 +0100785 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim754961a2010-11-13 16:11:46 +0900786 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500787 select NEED_MACH_GPIO_H
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900788 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900789 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
790 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900791
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200792config ARCH_S5PC100
793 bool "Samsung S5PC100"
Russell Kingb1b3f492012-10-06 17:12:25 +0100794 select ARCH_USES_GETTIMEOFFSET
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900795 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900796 select CPU_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100797 select GENERIC_GPIO
798 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900799 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900800 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100801 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500802 select NEED_MACH_GPIO_H
Byungho Min5a7652f2009-06-23 21:39:42 +0900803 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200804 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900805
Kukjin Kim170f4e42010-02-24 16:40:44 +0900806config ARCH_S5PV210
807 bool "Samsung S5PV210/S5PC110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100808 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900809 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100810 select ARCH_SPARSEMEM_ENABLE
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900811 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900812 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100813 select CPU_V7
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900814 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100815 select GENERIC_GPIO
816 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900817 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900818 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100819 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500820 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400821 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900822 help
823 Samsung S5PV210/S5PC110 series based systems
824
Kukjin Kim83014572011-11-06 13:54:56 +0900825config ARCH_EXYNOS
Russell King93e22562012-10-12 14:20:52 +0100826 bool "Samsung EXYNOS"
Russell Kingb1b3f492012-10-06 17:12:25 +0100827 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900828 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100829 select ARCH_SPARSEMEM_ENABLE
830 select CLKDEV_LOOKUP
831 select CPU_V7
832 select GENERIC_CLOCKEVENTS
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900833 select GENERIC_GPIO
834 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900835 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900836 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100837 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500838 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400839 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900840 help
Kukjin Kim83014572011-11-06 13:54:56 +0900841 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900842
Linus Torvalds1da177e2005-04-16 15:20:36 -0700843config ARCH_SHARK
844 bool "Shark"
Russell Kingb1b3f492012-10-06 17:12:25 +0100845 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000846 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100847 select ISA
848 select ISA_DMA
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400849 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100850 select PCI
851 select ZONE_DMA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000852 help
853 Support for the StrongARM based Digital DNARD machine, also known
854 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700855
Linus Walleijd98aac72009-04-27 10:21:46 +0100856config ARCH_U300
857 bool "ST-Ericsson U300 Series"
858 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100859 select ARCH_REQUIRE_GPIOLIB
Linus Walleijd98aac72009-04-27 10:21:46 +0100860 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200861 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100862 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100863 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100864 select CLKSRC_MMIO
Linus Walleij50667d62012-06-19 23:44:25 +0200865 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100866 select CPU_ARM926T
867 select GENERIC_CLOCKEVENTS
Linus Walleijd98aac72009-04-27 10:21:46 +0100868 select GENERIC_GPIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100869 select HAVE_TCM
Linus Walleija4fe2922012-08-13 13:49:45 +0200870 select SPARSE_IRQ
Linus Walleijd98aac72009-04-27 10:21:46 +0100871 help
872 Support for ST-Ericsson U300 series mobile platforms.
873
Russell Kingccf50e22010-03-15 19:03:06 +0000874config ARCH_U8500
875 bool "ST-Ericsson U8500 Series"
Arnd Bergmann67ae14f2012-02-25 12:48:49 -0700876 depends on MMU
Martin Persson7c1a70e2010-12-08 15:13:42 +0100877 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100878 select ARCH_REQUIRE_GPIOLIB
879 select ARM_AMBA
880 select CLKDEV_LOOKUP
881 select CPU_V7
882 select GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +0000883 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000884 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000885 help
886 Support for ST-Ericsson's Ux500 architecture
887
888config ARCH_NOMADIK
889 bool "STMicroelectronics Nomadik"
Russell Kingb1b3f492012-10-06 17:12:25 +0100890 select ARCH_REQUIRE_GPIOLIB
Russell Kingccf50e22010-03-15 19:03:06 +0000891 select ARM_AMBA
892 select ARM_VIC
Linus Walleij4a31bd22012-01-11 13:52:34 +0100893 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100894 select CPU_ARM926T
Russell Kingccf50e22010-03-15 19:03:06 +0000895 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100896 select MIGHT_HAVE_CACHE_L2X0
Arnd Bergmann0fa7be42012-05-15 11:24:34 +0000897 select PINCTRL
Linus Walleij2601ccf2012-08-10 00:43:40 +0200898 select PINCTRL_STN8815
Russell Kingccf50e22010-03-15 19:03:06 +0000899 help
900 Support for the Nomadik platform by ST-Ericsson
901
Russell King93e22562012-10-12 14:20:52 +0100902config PLAT_SPEAR
903 bool "ST SPEAr"
904 select ARCH_REQUIRE_GPIOLIB
905 select ARM_AMBA
906 select CLKDEV_LOOKUP
907 select CLKSRC_MMIO
908 select COMMON_CLK
909 select GENERIC_CLOCKEVENTS
910 select HAVE_CLK
911 help
912 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
913
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100914config ARCH_DAVINCI
915 bool "TI DaVinci"
Russell Kingb1b3f492012-10-06 17:12:25 +0100916 select ARCH_HAS_HOLES_MEMORYMODEL
David Brownelldce11152008-09-07 23:41:04 -0700917 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100918 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700919 select GENERIC_ALLOCATOR
Russell Kingb1b3f492012-10-06 17:12:25 +0100920 select GENERIC_CLOCKEVENTS
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100921 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100922 select HAVE_IDE
Rob Herring01464222012-08-28 13:06:41 -0500923 select NEED_MACH_GPIO_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100924 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100925 help
926 Support for TI's DaVinci platform.
927
Russell King3b938be2007-05-12 11:25:44 +0100928config ARCH_OMAP
929 bool "TI OMAP"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600930 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100931 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100932 select ARCH_HAS_HOLES_MEMORYMODEL
933 select ARCH_REQUIRE_GPIOLIB
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700934 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700935 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100936 select HAVE_CLK
Rob Herring01464222012-08-28 13:06:41 -0500937 select NEED_MACH_GPIO_H
Russell King3b938be2007-05-12 11:25:44 +0100938 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200939 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100940
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100941config ARCH_VT8500
942 bool "VIA/WonderMedia 85xx"
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100943 select ARCH_HAS_CPUFREQ
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100944 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200945 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100946 select COMMON_CLK
947 select CPU_ARM926T
948 select GENERIC_CLOCKEVENTS
949 select GENERIC_GPIO
950 select HAVE_CLK
951 select USE_OF
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100952 help
953 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +0800954
John Linnb85a3ef2011-06-20 11:47:27 -0600955config ARCH_ZYNQ
956 bool "Xilinx Zynq ARM Cortex A9 Platform"
Russell Kingb1b3f492012-10-06 17:12:25 +0100957 select ARM_AMBA
958 select ARM_GIC
959 select CLKDEV_LOOKUP
Binghua Duan02c981c2011-07-08 17:40:12 +0800960 select CPU_V7
Binghua Duan02c981c2011-07-08 17:40:12 +0800961 select GENERIC_CLOCKEVENTS
John Linnb85a3ef2011-06-20 11:47:27 -0600962 select ICST
Dave Martince5ea9f2011-11-29 15:56:19 +0000963 select MIGHT_HAVE_CACHE_L2X0
Binghua Duan02c981c2011-07-08 17:40:12 +0800964 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +0800965 help
John Linnb85a3ef2011-06-20 11:47:27 -0600966 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -0700967endchoice
968
Rob Herring387798b2012-09-06 13:41:12 -0500969menu "Multiple platform selection"
970 depends on ARCH_MULTIPLATFORM
971
972comment "CPU Core family selection"
973
974config ARCH_MULTI_V4
975 bool "ARMv4 based platforms (FA526, StrongARM)"
Rob Herring387798b2012-09-06 13:41:12 -0500976 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100977 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500978
979config ARCH_MULTI_V4T
980 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500981 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100982 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500983
984config ARCH_MULTI_V5
985 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500986 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100987 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500988
989config ARCH_MULTI_V4_V5
990 bool
991
992config ARCH_MULTI_V6
993 bool "ARMv6 based platforms (ARM11, Scorpion, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500994 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100995 select CPU_V6
Rob Herring387798b2012-09-06 13:41:12 -0500996
997config ARCH_MULTI_V7
998 bool "ARMv7 based platforms (Cortex-A, PJ4, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -0500999 default y
1000 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +01001001 select ARCH_VEXPRESS
1002 select CPU_V7
Rob Herring387798b2012-09-06 13:41:12 -05001003
1004config ARCH_MULTI_V6_V7
1005 bool
1006
1007config ARCH_MULTI_CPU_AUTO
1008 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
1009 select ARCH_MULTI_V5
1010
1011endmenu
1012
Russell Kingccf50e22010-03-15 19:03:06 +00001013#
1014# This is sorted alphabetically by mach-* pathname. However, plat-*
1015# Kconfigs may be included either alphabetically (according to the
1016# plat- suffix) or along side the corresponding mach-* source.
1017#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +02001018source "arch/arm/mach-mvebu/Kconfig"
1019
Russell King95b8f202010-01-14 11:43:54 +00001020source "arch/arm/mach-at91/Kconfig"
1021
Linus Torvalds1da177e2005-04-16 15:20:36 -07001022source "arch/arm/mach-clps711x/Kconfig"
1023
Anton Vorontsovd94f9442010-03-25 17:12:41 +03001024source "arch/arm/mach-cns3xxx/Kconfig"
1025
Russell King95b8f202010-01-14 11:43:54 +00001026source "arch/arm/mach-davinci/Kconfig"
1027
1028source "arch/arm/mach-dove/Kconfig"
1029
Lennert Buytenheke7736d42006-03-20 17:10:13 +00001030source "arch/arm/mach-ep93xx/Kconfig"
1031
Linus Torvalds1da177e2005-04-16 15:20:36 -07001032source "arch/arm/mach-footbridge/Kconfig"
1033
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001034source "arch/arm/mach-gemini/Kconfig"
1035
Russell King95b8f202010-01-14 11:43:54 +00001036source "arch/arm/mach-h720x/Kconfig"
1037
Rob Herring387798b2012-09-06 13:41:12 -05001038source "arch/arm/mach-highbank/Kconfig"
1039
Linus Torvalds1da177e2005-04-16 15:20:36 -07001040source "arch/arm/mach-integrator/Kconfig"
1041
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001042source "arch/arm/mach-iop32x/Kconfig"
1043
1044source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001045
Dan Williams285f5fa2006-12-07 02:59:39 +01001046source "arch/arm/mach-iop13xx/Kconfig"
1047
Linus Torvalds1da177e2005-04-16 15:20:36 -07001048source "arch/arm/mach-ixp4xx/Kconfig"
1049
Russell King95b8f202010-01-14 11:43:54 +00001050source "arch/arm/mach-kirkwood/Kconfig"
1051
1052source "arch/arm/mach-ks8695/Kconfig"
1053
Russell King95b8f202010-01-14 11:43:54 +00001054source "arch/arm/mach-msm/Kconfig"
1055
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001056source "arch/arm/mach-mv78xx0/Kconfig"
1057
Russell King95b8f202010-01-14 11:43:54 +00001058source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001059
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001060source "arch/arm/mach-mxs/Kconfig"
1061
Russell King95b8f202010-01-14 11:43:54 +00001062source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001063
Russell King95b8f202010-01-14 11:43:54 +00001064source "arch/arm/mach-nomadik/Kconfig"
1065source "arch/arm/plat-nomadik/Kconfig"
1066
Tony Lindgrend48af152005-07-10 19:58:17 +01001067source "arch/arm/plat-omap/Kconfig"
1068
1069source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001070
Tony Lindgren1dbae812005-11-10 14:26:51 +00001071source "arch/arm/mach-omap2/Kconfig"
1072
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001073source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001074
Rob Herring387798b2012-09-06 13:41:12 -05001075source "arch/arm/mach-picoxcell/Kconfig"
1076
Russell King95b8f202010-01-14 11:43:54 +00001077source "arch/arm/mach-pxa/Kconfig"
1078source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001079
Russell King95b8f202010-01-14 11:43:54 +00001080source "arch/arm/mach-mmp/Kconfig"
1081
1082source "arch/arm/mach-realview/Kconfig"
1083
1084source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001085
Ben Dookscf383672009-11-10 00:14:58 +00001086source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001087source "arch/arm/plat-s3c24xx/Kconfig"
1088
Rob Herring387798b2012-09-06 13:41:12 -05001089source "arch/arm/mach-socfpga/Kconfig"
1090
viresh kumarcee37e52010-04-01 12:31:05 +01001091source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001092
Kukjin Kim85fd6d62012-02-06 09:38:19 +09001093source "arch/arm/mach-s3c24xx/Kconfig"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001094if ARCH_S3C24XX
Ben Dooksa21765a2007-02-11 18:31:01 +01001095source "arch/arm/mach-s3c2412/Kconfig"
1096source "arch/arm/mach-s3c2440/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001097endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001098
Ben Dooksa08ab632008-10-21 14:06:39 +01001099if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001100source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001101endif
1102
Kukjin Kim49b7a492010-09-07 15:47:18 +09001103source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001104
Byungho Min5a7652f2009-06-23 21:39:42 +09001105source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001106
Kukjin Kim170f4e42010-02-24 16:40:44 +09001107source "arch/arm/mach-s5pv210/Kconfig"
1108
Kukjin Kim83014572011-11-06 13:54:56 +09001109source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001110
Russell King882d01f2010-03-02 23:40:15 +00001111source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001112
Barry Song156a0992012-08-23 13:41:58 +08001113source "arch/arm/mach-prima2/Kconfig"
1114
Erik Gillingc5f80062010-01-21 16:53:02 -08001115source "arch/arm/mach-tegra/Kconfig"
1116
Russell King95b8f202010-01-14 11:43:54 +00001117source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001118
Russell King95b8f202010-01-14 11:43:54 +00001119source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001120
1121source "arch/arm/mach-versatile/Kconfig"
1122
Russell Kingceade892010-02-11 21:44:53 +00001123source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001124source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001125
wanzongshun7ec80dd2008-12-03 03:55:38 +01001126source "arch/arm/mach-w90x900/Kconfig"
1127
Linus Torvalds1da177e2005-04-16 15:20:36 -07001128# Definitions to make life easier
1129config ARCH_ACORN
1130 bool
1131
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001132config PLAT_IOP
1133 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001134 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001135
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001136config PLAT_ORION
1137 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001138 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +01001139 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001140 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +02001141 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001142
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +02001143config PLAT_ORION_LEGACY
1144 bool
1145 select PLAT_ORION
1146
Eric Miaobd5ce432009-01-20 12:06:01 +08001147config PLAT_PXA
1148 bool
1149
Russell Kingf4b8b312010-01-14 12:48:06 +00001150config PLAT_VERSATILE
1151 bool
1152
Russell Kinge3887712010-01-14 13:30:16 +00001153config ARM_TIMER_SP804
1154 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001155 select CLKSRC_MMIO
Rob Herringa7bf6162011-12-12 15:29:08 -06001156 select HAVE_SCHED_CLOCK
Russell Kinge3887712010-01-14 13:30:16 +00001157
Linus Torvalds1da177e2005-04-16 15:20:36 -07001158source arch/arm/mm/Kconfig
1159
Russell King958cab02011-12-11 10:04:00 +00001160config ARM_NR_BANKS
1161 int
1162 default 16 if ARCH_EP93XX
1163 default 8
1164
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001165config IWMMXT
1166 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001167 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1168 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001169 help
1170 Enable support for iWMMXt context switching at run time if
1171 running on a CPU that supports it.
1172
Linus Torvalds1da177e2005-04-16 15:20:36 -07001173config XSCALE_PMU
1174 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001175 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001176 default y
1177
eric miao52108642010-12-13 09:42:34 +01001178config MULTI_IRQ_HANDLER
1179 bool
1180 help
1181 Allow each machine to specify it's own IRQ handler at run time.
1182
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001183if !MMU
1184source "arch/arm/Kconfig-nommu"
1185endif
1186
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001187config ARM_ERRATA_326103
1188 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1189 depends on CPU_V6
1190 help
1191 Executing a SWP instruction to read-only memory does not set bit 11
1192 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1193 treat the access as a read, preventing a COW from occurring and
1194 causing the faulting task to livelock.
1195
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001196config ARM_ERRATA_411920
1197 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001198 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001199 help
1200 Invalidation of the Instruction Cache operation can
1201 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1202 It does not affect the MPCore. This option enables the ARM Ltd.
1203 recommended workaround.
1204
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001205config ARM_ERRATA_430973
1206 bool "ARM errata: Stale prediction on replaced interworking branch"
1207 depends on CPU_V7
1208 help
1209 This option enables the workaround for the 430973 Cortex-A8
1210 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1211 interworking branch is replaced with another code sequence at the
1212 same virtual address, whether due to self-modifying code or virtual
1213 to physical address re-mapping, Cortex-A8 does not recover from the
1214 stale interworking branch prediction. This results in Cortex-A8
1215 executing the new code sequence in the incorrect ARM or Thumb state.
1216 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1217 and also flushes the branch target cache at every context switch.
1218 Note that setting specific bits in the ACTLR register may not be
1219 available in non-secure mode.
1220
Catalin Marinas855c5512009-04-30 17:06:15 +01001221config ARM_ERRATA_458693
1222 bool "ARM errata: Processor deadlock when a false hazard is created"
1223 depends on CPU_V7
1224 help
1225 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1226 erratum. For very specific sequences of memory operations, it is
1227 possible for a hazard condition intended for a cache line to instead
1228 be incorrectly associated with a different cache line. This false
1229 hazard might then cause a processor deadlock. The workaround enables
1230 the L1 caching of the NEON accesses and disables the PLD instruction
1231 in the ACTLR register. Note that setting specific bits in the ACTLR
1232 register may not be available in non-secure mode.
1233
Catalin Marinas0516e462009-04-30 17:06:20 +01001234config ARM_ERRATA_460075
1235 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1236 depends on CPU_V7
1237 help
1238 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1239 erratum. Any asynchronous access to the L2 cache may encounter a
1240 situation in which recent store transactions to the L2 cache are lost
1241 and overwritten with stale memory contents from external memory. The
1242 workaround disables the write-allocate mode for the L2 cache via the
1243 ACTLR register. Note that setting specific bits in the ACTLR register
1244 may not be available in non-secure mode.
1245
Will Deacon9f050272010-09-14 09:51:43 +01001246config ARM_ERRATA_742230
1247 bool "ARM errata: DMB operation may be faulty"
1248 depends on CPU_V7 && SMP
1249 help
1250 This option enables the workaround for the 742230 Cortex-A9
1251 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1252 between two write operations may not ensure the correct visibility
1253 ordering of the two writes. This workaround sets a specific bit in
1254 the diagnostic register of the Cortex-A9 which causes the DMB
1255 instruction to behave as a DSB, ensuring the correct behaviour of
1256 the two writes.
1257
Will Deacona672e992010-09-14 09:53:02 +01001258config ARM_ERRATA_742231
1259 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1260 depends on CPU_V7 && SMP
1261 help
1262 This option enables the workaround for the 742231 Cortex-A9
1263 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1264 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1265 accessing some data located in the same cache line, may get corrupted
1266 data due to bad handling of the address hazard when the line gets
1267 replaced from one of the CPUs at the same time as another CPU is
1268 accessing it. This workaround sets specific bits in the diagnostic
1269 register of the Cortex-A9 which reduces the linefill issuing
1270 capabilities of the processor.
1271
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001272config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001273 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001274 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001275 help
1276 The PL310 L2 cache controller implements three types of Clean &
1277 Invalidate maintenance operations: by Physical Address
1278 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1279 They are architecturally defined to behave as the execution of a
1280 clean operation followed immediately by an invalidate operation,
1281 both performing to the same memory location. This functionality
1282 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001283 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001284
1285config ARM_ERRATA_720789
1286 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001287 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001288 help
1289 This option enables the workaround for the 720789 Cortex-A9 (prior to
1290 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1291 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1292 As a consequence of this erratum, some TLB entries which should be
1293 invalidated are not, resulting in an incoherency in the system page
1294 tables. The workaround changes the TLB flushing routines to invalidate
1295 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001296
Russell King1f0090a2011-03-16 23:35:25 +00001297config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001298 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001299 depends on CACHE_L2X0
1300 help
1301 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1302 operation (offset 0x7FC). This operation runs in background so that
1303 PL310 can handle normal accesses while it is in progress. Under very
1304 rare circumstances, due to this erratum, write data can be lost when
1305 PL310 treats a cacheable write transaction during a Clean &
1306 Invalidate by Way operation.
1307
Will Deacon475d92f2010-09-28 14:02:02 +01001308config ARM_ERRATA_743622
1309 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1310 depends on CPU_V7
1311 help
1312 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001313 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001314 optimisation in the Cortex-A9 Store Buffer may lead to data
1315 corruption. This workaround sets a specific bit in the diagnostic
1316 register of the Cortex-A9 which disables the Store Buffer
1317 optimisation, preventing the defect from occurring. This has no
1318 visible impact on the overall performance or power consumption of the
1319 processor.
1320
Will Deacon9a27c272011-02-18 16:36:35 +01001321config ARM_ERRATA_751472
1322 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001323 depends on CPU_V7
Will Deacon9a27c272011-02-18 16:36:35 +01001324 help
1325 This option enables the workaround for the 751472 Cortex-A9 (prior
1326 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1327 completion of a following broadcasted operation if the second
1328 operation is received by a CPU before the ICIALLUIS has completed,
1329 potentially leading to corrupted entries in the cache or TLB.
1330
Will Deaconfa0ce402011-11-14 17:24:57 +01001331config PL310_ERRATA_753970
1332 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001333 depends on CACHE_PL310
1334 help
1335 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1336
1337 Under some condition the effect of cache sync operation on
1338 the store buffer still remains when the operation completes.
1339 This means that the store buffer is always asked to drain and
1340 this prevents it from merging any further writes. The workaround
1341 is to replace the normal offset of cache sync operation (0x730)
1342 by another offset targeting an unmapped PL310 register 0x740.
1343 This has the same effect as the cache sync operation: store buffer
1344 drain and waiting for all buffers empty.
1345
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001346config ARM_ERRATA_754322
1347 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1348 depends on CPU_V7
1349 help
1350 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1351 r3p*) erratum. A speculative memory access may cause a page table walk
1352 which starts prior to an ASID switch but completes afterwards. This
1353 can populate the micro-TLB with a stale entry which may be hit with
1354 the new ASID. This workaround places two dsb instructions in the mm
1355 switching code so that no page table walks can cross the ASID switch.
1356
Will Deacon5dab26a2011-03-04 12:38:54 +01001357config ARM_ERRATA_754327
1358 bool "ARM errata: no automatic Store Buffer drain"
1359 depends on CPU_V7 && SMP
1360 help
1361 This option enables the workaround for the 754327 Cortex-A9 (prior to
1362 r2p0) erratum. The Store Buffer does not have any automatic draining
1363 mechanism and therefore a livelock may occur if an external agent
1364 continuously polls a memory location waiting to observe an update.
1365 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1366 written polling loops from denying visibility of updates to memory.
1367
Catalin Marinas145e10e2011-08-15 11:04:41 +01001368config ARM_ERRATA_364296
1369 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1370 depends on CPU_V6 && !SMP
1371 help
1372 This options enables the workaround for the 364296 ARM1136
1373 r0p2 erratum (possible cache data corruption with
1374 hit-under-miss enabled). It sets the undocumented bit 31 in
1375 the auxiliary control register and the FI bit in the control
1376 register, thus disabling hit-under-miss without putting the
1377 processor into full low interrupt latency mode. ARM11MPCore
1378 is not affected.
1379
Will Deaconf630c1b2011-09-15 11:45:15 +01001380config ARM_ERRATA_764369
1381 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1382 depends on CPU_V7 && SMP
1383 help
1384 This option enables the workaround for erratum 764369
1385 affecting Cortex-A9 MPCore with two or more processors (all
1386 current revisions). Under certain timing circumstances, a data
1387 cache line maintenance operation by MVA targeting an Inner
1388 Shareable memory region may fail to proceed up to either the
1389 Point of Coherency or to the Point of Unification of the
1390 system. This workaround adds a DSB instruction before the
1391 relevant cache maintenance functions and sets a specific bit
1392 in the diagnostic control register of the SCU.
1393
Will Deacon11ed0ba2011-11-14 17:24:58 +01001394config PL310_ERRATA_769419
1395 bool "PL310 errata: no automatic Store Buffer drain"
1396 depends on CACHE_L2X0
1397 help
1398 On revisions of the PL310 prior to r3p2, the Store Buffer does
1399 not automatically drain. This can cause normal, non-cacheable
1400 writes to be retained when the memory system is idle, leading
1401 to suboptimal I/O performance for drivers using coherent DMA.
1402 This option adds a write barrier to the cpu_idle loop so that,
1403 on systems with an outer cache, the store buffer is drained
1404 explicitly.
1405
Simon Horman7253b852012-09-28 02:12:45 +01001406config ARM_ERRATA_775420
1407 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1408 depends on CPU_V7
1409 help
1410 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1411 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1412 operation aborts with MMU exception, it might cause the processor
1413 to deadlock. This workaround puts DSB before executing ISB if
1414 an abort may occur on cache maintenance.
1415
Linus Torvalds1da177e2005-04-16 15:20:36 -07001416endmenu
1417
1418source "arch/arm/common/Kconfig"
1419
Linus Torvalds1da177e2005-04-16 15:20:36 -07001420menu "Bus support"
1421
1422config ARM_AMBA
1423 bool
1424
1425config ISA
1426 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001427 help
1428 Find out whether you have ISA slots on your motherboard. ISA is the
1429 name of a bus system, i.e. the way the CPU talks to the other stuff
1430 inside your box. Other bus systems are PCI, EISA, MicroChannel
1431 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1432 newer boards don't support it. If you have ISA, say Y, otherwise N.
1433
Russell King065909b2006-01-04 15:44:16 +00001434# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001435config ISA_DMA
1436 bool
Russell King065909b2006-01-04 15:44:16 +00001437 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001438
Russell King065909b2006-01-04 15:44:16 +00001439# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001440config ISA_DMA_API
1441 bool
Al Viro5cae8412005-05-04 05:39:22 +01001442
Linus Torvalds1da177e2005-04-16 15:20:36 -07001443config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001444 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001445 help
1446 Find out whether you have a PCI motherboard. PCI is the name of a
1447 bus system, i.e. the way the CPU talks to the other stuff inside
1448 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1449 VESA. If you have PCI, say Y, otherwise N.
1450
Anton Vorontsov52882172010-04-19 13:20:49 +01001451config PCI_DOMAINS
1452 bool
1453 depends on PCI
1454
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001455config PCI_NANOENGINE
1456 bool "BSE nanoEngine PCI support"
1457 depends on SA1100_NANOENGINE
1458 help
1459 Enable PCI on the BSE nanoEngine board.
1460
Matthew Wilcox36e23592007-07-10 10:54:40 -06001461config PCI_SYSCALL
1462 def_bool PCI
1463
Linus Torvalds1da177e2005-04-16 15:20:36 -07001464# Select the host bridge type
1465config PCI_HOST_VIA82C505
1466 bool
1467 depends on PCI && ARCH_SHARK
1468 default y
1469
Mike Rapoporta0113a92007-11-25 08:55:34 +01001470config PCI_HOST_ITE8152
1471 bool
1472 depends on PCI && MACH_ARMCORE
1473 default y
1474 select DMABOUNCE
1475
Linus Torvalds1da177e2005-04-16 15:20:36 -07001476source "drivers/pci/Kconfig"
1477
1478source "drivers/pcmcia/Kconfig"
1479
1480endmenu
1481
1482menu "Kernel Features"
1483
Dave Martin3b556582011-12-07 15:38:04 +00001484config HAVE_SMP
1485 bool
1486 help
1487 This option should be selected by machines which have an SMP-
1488 capable CPU.
1489
1490 The only effect of this option is to make the SMP-related
1491 options available to the user for configuration.
1492
Linus Torvalds1da177e2005-04-16 15:20:36 -07001493config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001494 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001495 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001496 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001497 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001498 depends on MMU
Daniel Walker89c3ded2010-11-22 12:35:41 -08001499 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Russell Kingb1b3f492012-10-06 17:12:25 +01001500 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001501 help
1502 This enables support for systems with more than one CPU. If you have
1503 a system with only one CPU, like most personal computers, say N. If
1504 you have a system with more than one CPU, say Y.
1505
1506 If you say N here, the kernel will run on single and multiprocessor
1507 machines, but will use only one CPU of a multiprocessor machine. If
1508 you say Y here, the kernel will run on many, but not all, single
1509 processor machines. On a single processor machine, the kernel will
1510 run faster if you say N here.
1511
Paul Bolle395cf962011-08-15 02:02:26 +02001512 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001513 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001514 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001515
1516 If you don't know what to do here, say N.
1517
Russell Kingf00ec482010-09-04 10:47:48 +01001518config SMP_ON_UP
1519 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1520 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001521 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001522 default y
1523 help
1524 SMP kernels contain instructions which fail on non-SMP processors.
1525 Enabling this option allows the kernel to modify itself to make
1526 these instructions safe. Disabling it allows about 1K of space
1527 savings.
1528
1529 If you don't know what to do here, say Y.
1530
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001531config ARM_CPU_TOPOLOGY
1532 bool "Support cpu topology definition"
1533 depends on SMP && CPU_V7
1534 default y
1535 help
1536 Support ARM cpu topology definition. The MPIDR register defines
1537 affinity between processors which is then used to describe the cpu
1538 topology of an ARM System.
1539
1540config SCHED_MC
1541 bool "Multi-core scheduler support"
1542 depends on ARM_CPU_TOPOLOGY
1543 help
1544 Multi-core scheduler support improves the CPU scheduler's decision
1545 making when dealing with multi-core CPU chips at a cost of slightly
1546 increased overhead in some places. If unsure say N here.
1547
1548config SCHED_SMT
1549 bool "SMT scheduler support"
1550 depends on ARM_CPU_TOPOLOGY
1551 help
1552 Improves the CPU scheduler's decision making when dealing with
1553 MultiThreading at a cost of slightly increased overhead in some
1554 places. If unsure say N here.
1555
Russell Kinga8cbcd92009-05-16 11:51:14 +01001556config HAVE_ARM_SCU
1557 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001558 help
1559 This option enables support for the ARM system coherency unit
1560
Marc Zyngier022c03a2012-01-11 17:25:17 +00001561config ARM_ARCH_TIMER
1562 bool "Architected timer support"
1563 depends on CPU_V7
1564 help
1565 This option enables support for the ARM architected timer
1566
Russell Kingf32f4ce2009-05-16 12:14:21 +01001567config HAVE_ARM_TWD
1568 bool
1569 depends on SMP
1570 help
1571 This options enables support for the ARM timer and watchdog unit
1572
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001573choice
1574 prompt "Memory split"
1575 default VMSPLIT_3G
1576 help
1577 Select the desired split between kernel and user memory.
1578
1579 If you are not absolutely sure what you are doing, leave this
1580 option alone!
1581
1582 config VMSPLIT_3G
1583 bool "3G/1G user/kernel split"
1584 config VMSPLIT_2G
1585 bool "2G/2G user/kernel split"
1586 config VMSPLIT_1G
1587 bool "1G/3G user/kernel split"
1588endchoice
1589
1590config PAGE_OFFSET
1591 hex
1592 default 0x40000000 if VMSPLIT_1G
1593 default 0x80000000 if VMSPLIT_2G
1594 default 0xC0000000
1595
Linus Torvalds1da177e2005-04-16 15:20:36 -07001596config NR_CPUS
1597 int "Maximum number of CPUs (2-32)"
1598 range 2 32
1599 depends on SMP
1600 default "4"
1601
Russell Kinga054a812005-11-02 22:24:33 +00001602config HOTPLUG_CPU
1603 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1604 depends on SMP && HOTPLUG && EXPERIMENTAL
1605 help
1606 Say Y here to experiment with turning CPUs off and on. CPUs
1607 can be controlled through /sys/devices/system/cpu.
1608
Russell King37ee16a2005-11-08 19:08:05 +00001609config LOCAL_TIMERS
1610 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001611 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001612 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001613 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001614 help
1615 Enable support for local timers on SMP platforms, rather then the
1616 legacy IPI broadcast method. Local timers allows the system
1617 accounting to be spread across the timer interval, preventing a
1618 "thundering herd" at every timer tick.
1619
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001620config ARCH_NR_GPIO
1621 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001622 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Philippe Langlais70227a42012-02-13 10:51:22 +01001623 default 355 if ARCH_U8500
Paul Parsons9a01ec32012-02-27 01:58:45 +00001624 default 264 if MACH_H4700
Tarun Kanti DebBarma39f47d92012-04-26 18:31:17 +05301625 default 512 if SOC_OMAP5
Tony Priske9a91de2012-08-03 21:00:06 +12001626 default 288 if ARCH_VT8500
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001627 default 0
1628 help
1629 Maximum number of GPIOs in the system.
1630
1631 If unsure, leave the default value.
1632
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001633source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001634
Russell Kingf8065812006-03-02 22:41:59 +00001635config HZ
1636 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001637 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001638 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001639 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001640 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001641 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001642 default 100
1643
Catalin Marinas16c79652009-07-24 12:33:02 +01001644config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001645 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001646 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001647 select AEABI
1648 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001649 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001650 help
1651 By enabling this option, the kernel will be compiled in
1652 Thumb-2 mode. A compiler/assembler that understand the unified
1653 ARM-Thumb syntax is needed.
1654
1655 If unsure, say N.
1656
Dave Martin6f685c52011-03-03 11:41:12 +01001657config THUMB2_AVOID_R_ARM_THM_JUMP11
1658 bool "Work around buggy Thumb-2 short branch relocations in gas"
1659 depends on THUMB2_KERNEL && MODULES
1660 default y
1661 help
1662 Various binutils versions can resolve Thumb-2 branches to
1663 locally-defined, preemptible global symbols as short-range "b.n"
1664 branch instructions.
1665
1666 This is a problem, because there's no guarantee the final
1667 destination of the symbol, or any candidate locations for a
1668 trampoline, are within range of the branch. For this reason, the
1669 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1670 relocation in modules at all, and it makes little sense to add
1671 support.
1672
1673 The symptom is that the kernel fails with an "unsupported
1674 relocation" error when loading some modules.
1675
1676 Until fixed tools are available, passing
1677 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1678 code which hits this problem, at the cost of a bit of extra runtime
1679 stack usage in some cases.
1680
1681 The problem is described in more detail at:
1682 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1683
1684 Only Thumb-2 kernels are affected.
1685
1686 Unless you are sure your tools don't have this problem, say Y.
1687
Catalin Marinas0becb082009-07-24 12:32:53 +01001688config ARM_ASM_UNIFIED
1689 bool
1690
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001691config AEABI
1692 bool "Use the ARM EABI to compile the kernel"
1693 help
1694 This option allows for the kernel to be compiled using the latest
1695 ARM ABI (aka EABI). This is only useful if you are using a user
1696 space environment that is also compiled with EABI.
1697
1698 Since there are major incompatibilities between the legacy ABI and
1699 EABI, especially with regard to structure member alignment, this
1700 option also changes the kernel syscall calling convention to
1701 disambiguate both ABIs and allow for backward compatibility support
1702 (selected with CONFIG_OABI_COMPAT).
1703
1704 To use this you need GCC version 4.0.0 or later.
1705
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001706config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001707 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001708 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001709 default y
1710 help
1711 This option preserves the old syscall interface along with the
1712 new (ARM EABI) one. It also provides a compatibility layer to
1713 intercept syscalls that have structure arguments which layout
1714 in memory differs between the legacy ABI and the new ARM EABI
1715 (only for non "thumb" binaries). This option adds a tiny
1716 overhead to all syscalls and produces a slightly larger kernel.
1717 If you know you'll be using only pure EABI user space then you
1718 can say N here. If this option is not selected and you attempt
1719 to execute a legacy ABI binary then the result will be
1720 UNPREDICTABLE (in fact it can be predicted that it won't work
1721 at all). If in doubt say Y.
1722
Mel Gormaneb335752009-05-13 17:34:48 +01001723config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001724 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001725
Russell King05944d72006-11-30 20:43:51 +00001726config ARCH_SPARSEMEM_ENABLE
1727 bool
1728
Russell King07a2f732008-10-01 21:39:58 +01001729config ARCH_SPARSEMEM_DEFAULT
1730 def_bool ARCH_SPARSEMEM_ENABLE
1731
Russell King05944d72006-11-30 20:43:51 +00001732config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001733 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001734
Will Deacon7b7bf492011-05-19 13:21:14 +01001735config HAVE_ARCH_PFN_VALID
1736 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1737
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001738config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001739 bool "High Memory Support"
1740 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001741 help
1742 The address space of ARM processors is only 4 Gigabytes large
1743 and it has to accommodate user address space, kernel address
1744 space as well as some memory mapped IO. That means that, if you
1745 have a large amount of physical memory and/or IO, not all of the
1746 memory can be "permanently mapped" by the kernel. The physical
1747 memory that is not permanently mapped is called "high memory".
1748
1749 Depending on the selected kernel/user memory split, minimum
1750 vmalloc space and actual amount of RAM, you may not need this
1751 option which should result in a slightly faster kernel.
1752
1753 If unsure, say n.
1754
Russell King65cec8e2009-08-17 20:02:06 +01001755config HIGHPTE
1756 bool "Allocate 2nd-level pagetables from highmem"
1757 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001758
Jamie Iles1b8873a2010-02-02 20:25:44 +01001759config HW_PERF_EVENTS
1760 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001761 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001762 default y
1763 help
1764 Enable hardware performance counter support for perf events. If
1765 disabled, perf events will use software events only.
1766
Dave Hansen3f22ab22005-06-23 00:07:43 -07001767source "mm/Kconfig"
1768
Magnus Dammc1b2d972010-07-05 10:00:11 +01001769config FORCE_MAX_ZONEORDER
1770 int "Maximum zone order" if ARCH_SHMOBILE
1771 range 11 64 if ARCH_SHMOBILE
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001772 default "12" if SOC_AM33XX
Magnus Dammc1b2d972010-07-05 10:00:11 +01001773 default "9" if SA1111
1774 default "11"
1775 help
1776 The kernel memory allocator divides physically contiguous memory
1777 blocks into "zones", where each zone is a power of two number of
1778 pages. This option selects the largest power of two that the kernel
1779 keeps in the memory allocator. If you need to allocate very large
1780 blocks of physically contiguous memory, then you may need to
1781 increase this value.
1782
1783 This config option is actually maximum order plus one. For example,
1784 a value of 11 means that the largest free memory block is 2^10 pages.
1785
Linus Torvalds1da177e2005-04-16 15:20:36 -07001786config ALIGNMENT_TRAP
1787 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001788 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001789 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001790 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001791 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001792 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001793 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1794 address divisible by 4. On 32-bit ARM processors, these non-aligned
1795 fetch/store instructions will be emulated in software if you say
1796 here, which has a severe performance impact. This is necessary for
1797 correct operation of some network protocols. With an IP-only
1798 configuration it is safe to say N, otherwise say Y.
1799
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001800config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001801 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1802 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001803 default y if CPU_FEROCEON
1804 help
1805 Implement faster copy_to_user and clear_user methods for CPU
1806 cores where a 8-word STM instruction give significantly higher
1807 memory write throughput than a sequence of individual 32bit stores.
1808
1809 A possible side effect is a slight increase in scheduling latency
1810 between threads sharing the same address space if they invoke
1811 such copy operations with large buffers.
1812
1813 However, if the CPU data cache is using a write-allocate mode,
1814 this option is unlikely to provide any performance gain.
1815
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001816config SECCOMP
1817 bool
1818 prompt "Enable seccomp to safely compute untrusted bytecode"
1819 ---help---
1820 This kernel feature is useful for number crunching applications
1821 that may need to compute untrusted bytecode during their
1822 execution. By using pipes or other transports made available to
1823 the process as file descriptors supporting the read/write
1824 syscalls, it's possible to isolate those applications in
1825 their own address space using seccomp. Once seccomp is
1826 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1827 and the task is only allowed to execute a few safe syscalls
1828 defined by each seccomp mode.
1829
Nicolas Pitrec743f382010-05-24 23:55:42 -04001830config CC_STACKPROTECTOR
1831 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001832 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001833 help
1834 This option turns on the -fstack-protector GCC feature. This
1835 feature puts, at the beginning of functions, a canary value on
1836 the stack just before the return address, and validates
1837 the value just before actually returning. Stack based buffer
1838 overflows (that need to overwrite this return address) now also
1839 overwrite the canary, which gets detected and the attack is then
1840 neutralized via a kernel panic.
1841 This feature requires gcc version 4.2 or above.
1842
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001843config XEN_DOM0
1844 def_bool y
1845 depends on XEN
1846
1847config XEN
1848 bool "Xen guest support on ARM (EXPERIMENTAL)"
1849 depends on EXPERIMENTAL && ARM && OF
1850 help
1851 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1852
Linus Torvalds1da177e2005-04-16 15:20:36 -07001853endmenu
1854
1855menu "Boot options"
1856
Grant Likely9eb8f672011-04-28 14:27:20 -06001857config USE_OF
1858 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001859 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001860 select OF
1861 select OF_EARLY_FLATTREE
1862 help
1863 Include support for flattened device tree machine descriptions.
1864
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001865config ATAGS
1866 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1867 default y
1868 help
1869 This is the traditional way of passing data to the kernel at boot
1870 time. If you are solely relying on the flattened device tree (or
1871 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1872 to remove ATAGS support from your kernel binary. If unsure,
1873 leave this to y.
1874
1875config DEPRECATED_PARAM_STRUCT
1876 bool "Provide old way to pass kernel parameters"
1877 depends on ATAGS
1878 help
1879 This was deprecated in 2001 and announced to live on for 5 years.
1880 Some old boot loaders still use this way.
1881
Linus Torvalds1da177e2005-04-16 15:20:36 -07001882# Compressed boot loader in ROM. Yes, we really want to ask about
1883# TEXT and BSS so we preserve their values in the config files.
1884config ZBOOT_ROM_TEXT
1885 hex "Compressed ROM boot loader base address"
1886 default "0"
1887 help
1888 The physical address at which the ROM-able zImage is to be
1889 placed in the target. Platforms which normally make use of
1890 ROM-able zImage formats normally set this to a suitable
1891 value in their defconfig file.
1892
1893 If ZBOOT_ROM is not enabled, this has no effect.
1894
1895config ZBOOT_ROM_BSS
1896 hex "Compressed ROM boot loader BSS address"
1897 default "0"
1898 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001899 The base address of an area of read/write memory in the target
1900 for the ROM-able zImage which must be available while the
1901 decompressor is running. It must be large enough to hold the
1902 entire decompressed kernel plus an additional 128 KiB.
1903 Platforms which normally make use of ROM-able zImage formats
1904 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001905
1906 If ZBOOT_ROM is not enabled, this has no effect.
1907
1908config ZBOOT_ROM
1909 bool "Compressed boot loader in ROM/flash"
1910 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1911 help
1912 Say Y here if you intend to execute your compressed kernel image
1913 (zImage) directly from ROM or flash. If unsure, say N.
1914
Simon Horman090ab3f2011-04-26 06:29:53 +01001915choice
1916 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1917 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1918 default ZBOOT_ROM_NONE
1919 help
1920 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001921 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001922 kernel image to an MMC or SD card and boot the kernel straight
1923 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001924 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001925 rest the kernel image to RAM.
1926
1927config ZBOOT_ROM_NONE
1928 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1929 help
1930 Do not load image from SD or MMC
1931
Simon Hormanf45b1142011-01-11 04:01:08 +01001932config ZBOOT_ROM_MMCIF
1933 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001934 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001935 Load image from MMCIF hardware block.
1936
1937config ZBOOT_ROM_SH_MOBILE_SDHI
1938 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1939 help
1940 Load image from SDHI hardware block
1941
1942endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001943
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001944config ARM_APPENDED_DTB
1945 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1946 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1947 help
1948 With this option, the boot code will look for a device tree binary
1949 (DTB) appended to zImage
1950 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1951
1952 This is meant as a backward compatibility convenience for those
1953 systems with a bootloader that can't be upgraded to accommodate
1954 the documented boot protocol using a device tree.
1955
1956 Beware that there is very little in terms of protection against
1957 this option being confused by leftover garbage in memory that might
1958 look like a DTB header after a reboot if no actual DTB is appended
1959 to zImage. Do not leave this option active in a production kernel
1960 if you don't intend to always append a DTB. Proper passing of the
1961 location into r2 of a bootloader provided DTB is always preferable
1962 to this option.
1963
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001964config ARM_ATAG_DTB_COMPAT
1965 bool "Supplement the appended DTB with traditional ATAG information"
1966 depends on ARM_APPENDED_DTB
1967 help
1968 Some old bootloaders can't be updated to a DTB capable one, yet
1969 they provide ATAGs with memory configuration, the ramdisk address,
1970 the kernel cmdline string, etc. Such information is dynamically
1971 provided by the bootloader and can't always be stored in a static
1972 DTB. To allow a device tree enabled kernel to be used with such
1973 bootloaders, this option allows zImage to extract the information
1974 from the ATAG list and store it at run time into the appended DTB.
1975
Genoud Richardd0f34a12012-06-26 16:37:59 +01001976choice
1977 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
1978 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1979
1980config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1981 bool "Use bootloader kernel arguments if available"
1982 help
1983 Uses the command-line options passed by the boot loader instead of
1984 the device tree bootargs property. If the boot loader doesn't provide
1985 any, the device tree bootargs property will be used.
1986
1987config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
1988 bool "Extend with bootloader kernel arguments"
1989 help
1990 The command-line arguments provided by the boot loader will be
1991 appended to the the device tree bootargs property.
1992
1993endchoice
1994
Linus Torvalds1da177e2005-04-16 15:20:36 -07001995config CMDLINE
1996 string "Default kernel command string"
1997 default ""
1998 help
1999 On some architectures (EBSA110 and CATS), there is currently no way
2000 for the boot loader to pass arguments to the kernel. For these
2001 architectures, you should supply some command-line options at build
2002 time by entering them here. As a minimum, you should specify the
2003 memory size and the root device (e.g., mem=64M root=/dev/nfs).
2004
Victor Boivie4394c122011-05-04 17:07:55 +01002005choice
2006 prompt "Kernel command line type" if CMDLINE != ""
2007 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002008 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01002009
2010config CMDLINE_FROM_BOOTLOADER
2011 bool "Use bootloader kernel arguments if available"
2012 help
2013 Uses the command-line options passed by the boot loader. If
2014 the boot loader doesn't provide any, the default kernel command
2015 string provided in CMDLINE will be used.
2016
2017config CMDLINE_EXTEND
2018 bool "Extend bootloader kernel arguments"
2019 help
2020 The command-line arguments provided by the boot loader will be
2021 appended to the default kernel command string.
2022
Alexander Holler92d20402010-02-16 19:04:53 +01002023config CMDLINE_FORCE
2024 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01002025 help
2026 Always use the default kernel command string, even if the boot
2027 loader passes other arguments to the kernel.
2028 This is useful if you cannot or don't want to change the
2029 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01002030endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002031
Linus Torvalds1da177e2005-04-16 15:20:36 -07002032config XIP_KERNEL
2033 bool "Kernel Execute-In-Place from ROM"
Rob Herring387798b2012-09-06 13:41:12 -05002034 depends on !ZBOOT_ROM && !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07002035 help
2036 Execute-In-Place allows the kernel to run from non-volatile storage
2037 directly addressable by the CPU, such as NOR flash. This saves RAM
2038 space since the text section of the kernel is not loaded from flash
2039 to RAM. Read-write sections, such as the data section and stack,
2040 are still copied to RAM. The XIP kernel is not compressed since
2041 it has to run directly from flash, so it will take more space to
2042 store it. The flash address used to link the kernel object files,
2043 and for storing it, is configuration dependent. Therefore, if you
2044 say Y here, you must know the proper physical address where to
2045 store the kernel image depending on your own flash memory usage.
2046
2047 Also note that the make target becomes "make xipImage" rather than
2048 "make zImage" or "make Image". The final kernel binary to put in
2049 ROM memory will be arch/arm/boot/xipImage.
2050
2051 If unsure, say N.
2052
2053config XIP_PHYS_ADDR
2054 hex "XIP Kernel Physical Location"
2055 depends on XIP_KERNEL
2056 default "0x00080000"
2057 help
2058 This is the physical address in your flash memory the kernel will
2059 be linked for and stored to. This address is dependent on your
2060 own flash usage.
2061
Richard Purdiec587e4a2007-02-06 21:29:00 +01002062config KEXEC
2063 bool "Kexec system call (EXPERIMENTAL)"
Will Deacon02b73e22011-06-06 15:49:23 +01002064 depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002065 help
2066 kexec is a system call that implements the ability to shutdown your
2067 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002068 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002069 you can start any kernel with it, not just Linux.
2070
2071 It is an ongoing process to be certain the hardware in a machine
2072 is properly shutdown, so do not be surprised if this code does not
2073 initially work for you. It may help to enable device hotplugging
2074 support.
2075
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002076config ATAGS_PROC
2077 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002078 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01002079 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002080 help
2081 Should the atags used to boot the kernel be exported in an "atags"
2082 file in procfs. Useful with kexec.
2083
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002084config CRASH_DUMP
2085 bool "Build kdump crash kernel (EXPERIMENTAL)"
2086 depends on EXPERIMENTAL
2087 help
2088 Generate crash dump after being started by kexec. This should
2089 be normally only set in special crash dump kernels which are
2090 loaded in the main kernel with kexec-tools into a specially
2091 reserved region and then later executed after a crash by
2092 kdump/kexec. The crash dump kernel must be compiled to a
2093 memory address not used by the main kernel
2094
2095 For more details see Documentation/kdump/kdump.txt
2096
Eric Miaoe69edc792010-07-05 15:56:50 +02002097config AUTO_ZRELADDR
2098 bool "Auto calculation of the decompressed kernel image address"
2099 depends on !ZBOOT_ROM && !ARCH_U300
2100 help
2101 ZRELADDR is the physical address where the decompressed kernel
2102 image will be placed. If AUTO_ZRELADDR is selected, the address
2103 will be determined at run-time by masking the current IP with
2104 0xf8000000. This assumes the zImage being placed in the first 128MB
2105 from start of memory.
2106
Linus Torvalds1da177e2005-04-16 15:20:36 -07002107endmenu
2108
Russell Kingac9d7ef2008-08-18 17:26:00 +01002109menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002110
Ben Dooks89c52ed2009-07-30 23:23:24 +01002111if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002112
2113source "drivers/cpufreq/Kconfig"
2114
Yong Shen64f102b2010-10-21 21:18:59 +08002115config CPU_FREQ_IMX
2116 tristate "CPUfreq driver for i.MX CPUs"
2117 depends on ARCH_MXC && CPU_FREQ
Arnd Bergmannf637c4c2012-08-16 10:40:40 +00002118 select CPU_FREQ_TABLE
Yong Shen64f102b2010-10-21 21:18:59 +08002119 help
2120 This enables the CPUfreq driver for i.MX CPUs.
2121
Linus Torvalds1da177e2005-04-16 15:20:36 -07002122config CPU_FREQ_SA1100
2123 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002124
2125config CPU_FREQ_SA1110
2126 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002127
2128config CPU_FREQ_INTEGRATOR
2129 tristate "CPUfreq driver for ARM Integrator CPUs"
2130 depends on ARCH_INTEGRATOR && CPU_FREQ
2131 default y
2132 help
2133 This enables the CPUfreq driver for ARM Integrator CPUs.
2134
2135 For details, take a look at <file:Documentation/cpu-freq>.
2136
2137 If in doubt, say Y.
2138
Russell King9e2697f2007-12-14 13:30:14 +00002139config CPU_FREQ_PXA
2140 bool
2141 depends on CPU_FREQ && ARCH_PXA && PXA25x
2142 default y
2143 select CPU_FREQ_DEFAULT_GOV_USERSPACE
Russell Kingb1b3f492012-10-06 17:12:25 +01002144 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002145
Ben Dooks9d56c022009-07-30 23:23:25 +01002146config CPU_FREQ_S3C
2147 bool
2148 help
2149 Internal configuration node for common cpufreq on Samsung SoC
2150
2151config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002152 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09002153 depends on ARCH_S3C24XX && CPU_FREQ && EXPERIMENTAL
Ben Dooks9d56c022009-07-30 23:23:25 +01002154 select CPU_FREQ_S3C
2155 help
2156 This enables the CPUfreq driver for the Samsung S3C24XX family
2157 of CPUs.
2158
2159 For details, take a look at <file:Documentation/cpu-freq>.
2160
2161 If in doubt, say N.
2162
2163config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002164 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002165 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2166 help
2167 Compile in support for changing the PLL frequency from the
2168 S3C24XX series CPUfreq driver. The PLL takes time to settle
2169 after a frequency change, so by default it is not enabled.
2170
2171 This also means that the PLL tables for the selected CPU(s) will
2172 be built which may increase the size of the kernel image.
2173
2174config CPU_FREQ_S3C24XX_DEBUG
2175 bool "Debug CPUfreq Samsung driver core"
2176 depends on CPU_FREQ_S3C24XX
2177 help
2178 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2179
2180config CPU_FREQ_S3C24XX_IODEBUG
2181 bool "Debug CPUfreq Samsung driver IO timing"
2182 depends on CPU_FREQ_S3C24XX
2183 help
2184 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2185
Ben Dookse6d197a2009-07-30 23:23:42 +01002186config CPU_FREQ_S3C24XX_DEBUGFS
2187 bool "Export debugfs for CPUFreq"
2188 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2189 help
2190 Export status information via debugfs.
2191
Linus Torvalds1da177e2005-04-16 15:20:36 -07002192endif
2193
Russell Kingac9d7ef2008-08-18 17:26:00 +01002194source "drivers/cpuidle/Kconfig"
2195
2196endmenu
2197
Linus Torvalds1da177e2005-04-16 15:20:36 -07002198menu "Floating point emulation"
2199
2200comment "At least one emulation must be selected"
2201
2202config FPE_NWFPE
2203 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002204 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002205 ---help---
2206 Say Y to include the NWFPE floating point emulator in the kernel.
2207 This is necessary to run most binaries. Linux does not currently
2208 support floating point hardware so you need to say Y here even if
2209 your machine has an FPA or floating point co-processor podule.
2210
2211 You may say N here if you are going to load the Acorn FPEmulator
2212 early in the bootup.
2213
2214config FPE_NWFPE_XP
2215 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002216 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002217 help
2218 Say Y to include 80-bit support in the kernel floating-point
2219 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2220 Note that gcc does not generate 80-bit operations by default,
2221 so in most cases this option only enlarges the size of the
2222 floating point emulator without any good reason.
2223
2224 You almost surely want to say N here.
2225
2226config FPE_FASTFPE
2227 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002228 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002229 ---help---
2230 Say Y here to include the FAST floating point emulator in the kernel.
2231 This is an experimental much faster emulator which now also has full
2232 precision for the mantissa. It does not support any exceptions.
2233 It is very simple, and approximately 3-6 times faster than NWFPE.
2234
2235 It should be sufficient for most programs. It may be not suitable
2236 for scientific calculations, but you have to check this for yourself.
2237 If you do not feel you need a faster FP emulation you should better
2238 choose NWFPE.
2239
2240config VFP
2241 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002242 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002243 help
2244 Say Y to include VFP support code in the kernel. This is needed
2245 if your hardware includes a VFP unit.
2246
2247 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2248 release notes and additional status information.
2249
2250 Say N if your target does not have VFP hardware.
2251
Catalin Marinas25ebee02007-09-25 15:22:24 +01002252config VFPv3
2253 bool
2254 depends on VFP
2255 default y if CPU_V7
2256
Catalin Marinasb5872db2008-01-10 19:16:17 +01002257config NEON
2258 bool "Advanced SIMD (NEON) Extension support"
2259 depends on VFPv3 && CPU_V7
2260 help
2261 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2262 Extension.
2263
Linus Torvalds1da177e2005-04-16 15:20:36 -07002264endmenu
2265
2266menu "Userspace binary formats"
2267
2268source "fs/Kconfig.binfmt"
2269
2270config ARTHUR
2271 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00002272 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002273 help
2274 Say Y here to include the kernel code necessary if you want to run
2275 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2276 experimental; if this sounds frightening, say N and sleep in peace.
2277 You can also say M here to compile this support as a module (which
2278 will be called arthur).
2279
2280endmenu
2281
2282menu "Power management options"
2283
Russell Kingeceab4a2005-11-15 11:31:41 +00002284source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002285
Johannes Bergf4cb5702007-12-08 02:14:00 +01002286config ARCH_SUSPEND_POSSIBLE
Stephen Warren4b1082c2012-09-05 09:58:27 -06002287 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002288 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
Chao Xie3f5d0812012-05-07 11:23:58 +08002289 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002290 def_bool y
2291
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002292config ARM_CPU_SUSPEND
2293 def_bool PM_SLEEP
2294
Linus Torvalds1da177e2005-04-16 15:20:36 -07002295endmenu
2296
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002297source "net/Kconfig"
2298
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002299source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002300
2301source "fs/Kconfig"
2302
Linus Torvalds1da177e2005-04-16 15:20:36 -07002303source "arch/arm/Kconfig.debug"
2304
2305source "security/Kconfig"
2306
2307source "crypto/Kconfig"
2308
2309source "lib/Kconfig"