blob: 261fdd085bb939bb0eb5929e455c71368669baf7 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
Russell Kingb1b3f492012-10-06 17:12:25 +01004 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
Catalin Marinas74634492012-07-30 14:41:09 -07005 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
Russell Kingb1b3f492012-10-06 17:12:25 +01006 select ARCH_HAVE_CUSTOM_GPIO_H
7 select ARCH_WANT_IPC_PARSE_VERSION
8 select CPU_PM if (SUSPEND || CPU_IDLE)
9 select DCACHE_WORD_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && !CPU_BIG_ENDIAN
10 select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI)
11 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
12 select GENERIC_IRQ_PROBE
13 select GENERIC_IRQ_SHOW
14 select GENERIC_KERNEL_THREAD
Linus Torvalds3d6ee362012-10-13 17:18:53 -070015 select GENERIC_KERNEL_EXECVE
Russell Kingb1b3f492012-10-06 17:12:25 +010016 select GENERIC_PCI_IOMAP
17 select GENERIC_SMP_IDLE_THREAD
18 select GENERIC_STRNCPY_FROM_USER
19 select GENERIC_STRNLEN_USER
20 select HARDIRQS_SW_RESEND
21 select HAVE_AOUT
Rabin Vincent09f05d82012-02-18 17:52:41 +010022 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
Jason Wessel5cbad0e2008-02-20 13:33:40 -060023 select HAVE_ARCH_KGDB
Wade Farnsworth0693bf62012-04-04 16:19:47 +010024 select HAVE_ARCH_TRACEHOOK
Russell Kingb1b3f492012-10-06 17:12:25 +010025 select HAVE_BPF_JIT
26 select HAVE_C_RECORDMCOUNT
27 select HAVE_DEBUG_KMEMLEAK
28 select HAVE_DMA_API_DEBUG
29 select HAVE_DMA_ATTRS
30 select HAVE_DMA_CONTIGUOUS if MMU
31 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
32 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
33 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
34 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
35 select HAVE_GENERIC_DMA_COHERENT
36 select HAVE_GENERIC_HARDIRQS
37 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
38 select HAVE_IDE if PCI || ISA || PCMCIA
39 select HAVE_IRQ_WORK
40 select HAVE_KERNEL_GZIP
41 select HAVE_KERNEL_LZMA
42 select HAVE_KERNEL_LZO
43 select HAVE_KERNEL_XZ
Jon Medhurst856bc352011-06-14 13:09:39 +010044 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080045 select HAVE_KRETPROBES if (HAVE_KPROBES)
Russell Kingb1b3f492012-10-06 17:12:25 +010046 select HAVE_MEMBLOCK
47 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jamie Iles7ada1892010-02-02 20:24:58 +010048 select HAVE_PERF_EVENTS
Will Deacone513f8b2010-06-25 12:24:53 +010049 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kingb1b3f492012-10-06 17:12:25 +010050 select HAVE_SYSCALL_TRACEPOINTS
Catalin Marinasaf1839e2012-10-08 16:28:08 -070051 select HAVE_UID16
Anna-Maria Gleixner3d92a712012-05-18 16:45:44 +000052 select KTIME_SCALAR
Russell Kingb1b3f492012-10-06 17:12:25 +010053 select PERF_USE_VMALLOC
54 select RTC_LIB
55 select SYS_SUPPORTS_APM_EMULATION
Linus Torvalds1da177e2005-04-16 15:20:36 -070056 help
57 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000058 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070059 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000060 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070061 Europe. There is an ARM Linux project with a web page at
62 <http://www.arm.linux.org.uk/>.
63
Russell King74facff2011-06-02 11:16:22 +010064config ARM_HAS_SG_CHAIN
65 bool
66
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020067config NEED_SG_DMA_LENGTH
68 bool
69
70config ARM_DMA_USE_IOMMU
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020071 bool
Russell Kingb1b3f492012-10-06 17:12:25 +010072 select ARM_HAS_SG_CHAIN
73 select NEED_SG_DMA_LENGTH
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020074
Russell King1a189b92008-04-13 21:41:55 +010075config HAVE_PWM
76 bool
77
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010078config MIGHT_HAVE_PCI
79 bool
80
Ralf Baechle75e71532007-02-09 17:08:58 +000081config SYS_SUPPORTS_APM_EMULATION
82 bool
83
David Brownell0a938b92007-03-05 00:30:18 -080084config GENERIC_GPIO
85 bool
David Brownell0a938b92007-03-05 00:30:18 -080086
Linus Walleijbc581772009-09-15 17:30:37 +010087config HAVE_TCM
88 bool
89 select GENERIC_ALLOCATOR
90
Russell Kinge119bff2010-01-10 17:23:29 +000091config HAVE_PROC_CPU
92 bool
93
Al Viro5ea81762007-02-11 15:41:31 +000094config NO_IOPORT
95 bool
Al Viro5ea81762007-02-11 15:41:31 +000096
Linus Torvalds1da177e2005-04-16 15:20:36 -070097config EISA
98 bool
99 ---help---
100 The Extended Industry Standard Architecture (EISA) bus was
101 developed as an open alternative to the IBM MicroChannel bus.
102
103 The EISA bus provided some of the features of the IBM MicroChannel
104 bus while maintaining backward compatibility with cards made for
105 the older ISA bus. The EISA bus saw limited use between 1988 and
106 1995 when it was made obsolete by the PCI bus.
107
108 Say Y here if you are building a kernel for an EISA-based machine.
109
110 Otherwise, say N.
111
112config SBUS
113 bool
114
Russell Kingf16fb1e2007-04-28 09:59:37 +0100115config STACKTRACE_SUPPORT
116 bool
117 default y
118
Nicolas Pitref76e9152008-04-24 01:31:46 -0400119config HAVE_LATENCYTOP_SUPPORT
120 bool
121 depends on !SMP
122 default y
123
Russell Kingf16fb1e2007-04-28 09:59:37 +0100124config LOCKDEP_SUPPORT
125 bool
126 default y
127
Russell King7ad1bcb2006-08-27 12:07:02 +0100128config TRACE_IRQFLAGS_SUPPORT
129 bool
130 default y
131
Linus Torvalds1da177e2005-04-16 15:20:36 -0700132config RWSEM_GENERIC_SPINLOCK
133 bool
134 default y
135
136config RWSEM_XCHGADD_ALGORITHM
137 bool
138
David Howellsf0d1b0b2006-12-08 02:37:49 -0800139config ARCH_HAS_ILOG2_U32
140 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800141
142config ARCH_HAS_ILOG2_U64
143 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800144
Ben Dooks89c52ed2009-07-30 23:23:24 +0100145config ARCH_HAS_CPUFREQ
146 bool
147 help
148 Internal node to signify that the ARCH has CPUFREQ support
149 and that the relevant menu configurations are displayed for
150 it.
151
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800152config GENERIC_HWEIGHT
153 bool
154 default y
155
Linus Torvalds1da177e2005-04-16 15:20:36 -0700156config GENERIC_CALIBRATE_DELAY
157 bool
158 default y
159
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100160config ARCH_MAY_HAVE_PC_FDC
161 bool
162
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800163config ZONE_DMA
164 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800165
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800166config NEED_DMA_MAP_STATE
167 def_bool y
168
Rob Herring58af4a22012-03-20 14:33:01 -0500169config ARCH_HAS_DMA_SET_COHERENT_MASK
170 bool
171
Linus Torvalds1da177e2005-04-16 15:20:36 -0700172config GENERIC_ISA_DMA
173 bool
174
Linus Torvalds1da177e2005-04-16 15:20:36 -0700175config FIQ
176 bool
177
Rob Herring13a50452012-02-07 09:28:22 -0600178config NEED_RET_TO_USER
179 bool
180
Al Viro034d2f52005-12-19 16:27:59 -0500181config ARCH_MTD_XIP
182 bool
183
Hyok S. Choic760fc12006-03-27 15:18:50 +0100184config VECTORS_BASE
185 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900186 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100187 default DRAM_BASE if REMAP_VECTORS_TO_RAM
188 default 0x00000000
189 help
190 The base address of exception vectors.
191
Russell Kingdc21af92011-01-04 19:09:43 +0000192config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100193 bool "Patch physical to virtual translations at runtime" if EMBEDDED
194 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100195 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000196 depends on !ARCH_REALVIEW || !SPARSEMEM
197 help
Russell King111e9a52011-05-12 10:02:42 +0100198 Patch phys-to-virt and virt-to-phys translation functions at
199 boot and module load time according to the position of the
200 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000201
Russell King111e9a52011-05-12 10:02:42 +0100202 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100203 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000204
Russell Kingc1beced2011-08-10 10:23:45 +0100205 Only disable this option if you know that you do not require
206 this feature (eg, building a kernel for a single machine) and
207 you need to shrink the kernel to the minimal size.
208
Rob Herring01464222012-08-28 13:06:41 -0500209config NEED_MACH_GPIO_H
210 bool
211 help
212 Select this when mach/gpio.h is required to provide special
213 definitions for this platform. The need for mach/gpio.h should
214 be avoided when possible.
215
Rob Herringc334bc12012-03-04 22:03:33 -0600216config NEED_MACH_IO_H
217 bool
218 help
219 Select this when mach/io.h is required to provide special
220 definitions for this platform. The need for mach/io.h should
221 be avoided when possible.
222
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400223config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400224 bool
Russell King111e9a52011-05-12 10:02:42 +0100225 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400226 Select this when mach/memory.h is required to provide special
227 definitions for this platform. The need for mach/memory.h should
228 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400229
230config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100231 hex "Physical address of main memory" if MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400232 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre974c0722011-12-02 23:09:42 +0100233 default DRAM_BASE if !MMU
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400234 help
235 Please provide the physical address corresponding to the
236 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000237
Simon Glass87e040b2011-08-16 23:44:26 +0100238config GENERIC_BUG
239 def_bool y
240 depends on BUG
241
Linus Torvalds1da177e2005-04-16 15:20:36 -0700242source "init/Kconfig"
243
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700244source "kernel/Kconfig.freezer"
245
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246menu "System Type"
247
Hyok S. Choi3c427972009-07-24 12:35:00 +0100248config MMU
249 bool "MMU-based Paged Memory Management Support"
250 default y
251 help
252 Select if you want MMU-based virtualised addressing space
253 support by paged memory management. If unsure, say 'Y'.
254
Russell Kingccf50e22010-03-15 19:03:06 +0000255#
256# The "ARM system type" choice list is ordered alphabetically by option
257# text. Please add new entries in the option alphabetic order.
258#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700259choice
260 prompt "ARM system type"
Rob Herring387798b2012-09-06 13:41:12 -0500261 default ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700262
Rob Herring387798b2012-09-06 13:41:12 -0500263config ARCH_MULTIPLATFORM
264 bool "Allow multiple platforms to be selected"
Russell Kingb1b3f492012-10-06 17:12:25 +0100265 depends on MMU
Rob Herring387798b2012-09-06 13:41:12 -0500266 select ARM_PATCH_PHYS_VIRT
267 select AUTO_ZRELADDR
Dinh Nguyen66314222012-07-18 16:07:18 -0600268 select COMMON_CLK
Rob Herring387798b2012-09-06 13:41:12 -0500269 select MULTI_IRQ_HANDLER
Dinh Nguyen66314222012-07-18 16:07:18 -0600270 select SPARSE_IRQ
271 select USE_OF
Dinh Nguyen66314222012-07-18 16:07:18 -0600272
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100273config ARCH_INTEGRATOR
274 bool "ARM Ltd. Integrator family"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100275 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100276 select ARM_AMBA
Linus Walleija6131632012-06-11 17:33:12 +0200277 select COMMON_CLK
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200278 select COMMON_CLK_VERSATILE
Russell Kingb1b3f492012-10-06 17:12:25 +0100279 select GENERIC_CLOCKEVENTS
Linus Walleij9904f792011-12-09 10:29:23 +0100280 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000281 select ICST
Russell Kingb1b3f492012-10-06 17:12:25 +0100282 select MULTI_IRQ_HANDLER
283 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000284 select PLAT_VERSATILE
Russell Kingc41b16f2011-01-19 15:32:15 +0000285 select PLAT_VERSATILE_FPGA_IRQ
Linus Walleij695436e2012-02-26 10:46:48 +0100286 select SPARSE_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100287 help
288 Support for ARM's Integrator platform.
289
290config ARCH_REALVIEW
291 bool "ARM Ltd. RealView family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100292 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100293 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100294 select ARM_TIMER_SP804
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200295 select COMMON_CLK
296 select COMMON_CLK_VERSATILE
Catalin Marinasae30cea2008-02-04 17:26:55 +0100297 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100298 select GPIO_PL061 if GPIOLIB
299 select ICST
300 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000301 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000302 select PLAT_VERSATILE_CLCD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100303 help
304 This enables support for ARM Ltd RealView boards.
305
306config ARCH_VERSATILE
307 bool "ARM Ltd. Versatile family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100308 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100309 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100310 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100311 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100312 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100313 select GENERIC_CLOCKEVENTS
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900314 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000315 select ICST
Russell Kingf4b8b312010-01-14 12:48:06 +0000316 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000317 select PLAT_VERSATILE_CLCD
Russell Kingb1b3f492012-10-06 17:12:25 +0100318 select PLAT_VERSATILE_CLOCK
Russell Kingc41b16f2011-01-19 15:32:15 +0000319 select PLAT_VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100320 help
321 This enables support for ARM Ltd Versatile board.
322
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100323config ARCH_AT91
324 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100325 select ARCH_REQUIRE_GPIOLIB
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100326 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100327 select HAVE_CLK
Nicolas Ferree2615012011-11-22 22:26:09 +0100328 select IRQ_DOMAIN
Rob Herring01464222012-08-28 13:06:41 -0500329 select NEED_MACH_GPIO_H
Rob Herring1ac02d72012-04-04 17:48:04 -0500330 select NEED_MACH_IO_H if PCCARD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100331 help
Nicolas Ferre929e9942012-03-15 12:21:12 +0100332 This enables support for systems based on Atmel
333 AT91RM9200 and AT91SAM9* processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100334
Simon Arlottec9653b2012-05-26 01:04:43 -0600335config ARCH_BCM2835
336 bool "Broadcom BCM2835 family"
337 select ARCH_WANT_OPTIONAL_GPIOLIB
338 select ARM_AMBA
339 select ARM_ERRATA_411920
340 select ARM_TIMER_SP804
341 select CLKDEV_LOOKUP
342 select COMMON_CLK
343 select CPU_V6
344 select GENERIC_CLOCKEVENTS
345 select MULTI_IRQ_HANDLER
346 select SPARSE_IRQ
347 select USE_OF
348 help
349 This enables support for the Broadcom BCM2835 SoC. This SoC is
350 use in the Raspberry Pi, and Roku 2 devices.
351
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300352config ARCH_CNS3XXX
353 bool "Cavium Networks CNS3XXX family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100354 select ARM_GIC
Imre Kaloz00d27112011-07-07 12:19:09 +0200355 select CPU_V6K
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300356 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000357 select MIGHT_HAVE_CACHE_L2X0
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100358 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400359 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300360 help
361 Support for Cavium Networks CNS3XXX platform.
362
Russell King93e22562012-10-12 14:20:52 +0100363config ARCH_CLPS711X
364 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
365 select ARCH_USES_GETTIMEOFFSET
366 select CLKDEV_LOOKUP
367 select COMMON_CLK
368 select CPU_ARM720T
369 select NEED_MACH_MEMORY_H
370 help
371 Support for Cirrus Logic 711x/721x/731x based boards.
372
Russell King788c9702009-04-26 14:21:59 +0100373config ARCH_GEMINI
374 bool "Cortina Systems Gemini"
Russell King788c9702009-04-26 14:21:59 +0100375 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000376 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100377 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100378 help
379 Support for the Cortina Systems Gemini family SoCs
380
Barry Song156a0992012-08-23 13:41:58 +0800381config ARCH_SIRF
382 bool "CSR SiRF"
Arnd Bergmannf6387092012-07-04 14:33:01 +0000383 select ARCH_REQUIRE_GPIOLIB
Binghua Duan198678b2012-08-20 06:42:36 +0000384 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100385 select GENERIC_CLOCKEVENTS
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200386 select GENERIC_IRQ_CHIP
Dave Martince5ea9f2011-11-29 15:56:19 +0000387 select MIGHT_HAVE_CACHE_L2X0
Russell Kingb1b3f492012-10-06 17:12:25 +0100388 select NO_IOPORT
Barry Songcbd8d842012-05-15 10:35:46 +0800389 select PINCTRL
390 select PINCTRL_SIRF
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200391 select USE_OF
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200392 help
Barry Song156a0992012-08-23 13:41:58 +0800393 Support for CSR SiRFprimaII/Marco/Polo platforms
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200394
Linus Torvalds1da177e2005-04-16 15:20:36 -0700395config ARCH_EBSA110
396 bool "EBSA-110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100397 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000398 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100399 select ISA
Rob Herringc334bc12012-03-04 22:03:33 -0600400 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400401 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100402 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700403 help
404 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000405 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700406 Ethernet interface, two PCMCIA sockets, two serial ports and a
407 parallel port.
408
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000409config ARCH_EP93XX
410 bool "EP93xx-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100411 select ARCH_HAS_HOLES_MEMORYMODEL
412 select ARCH_REQUIRE_GPIOLIB
413 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000414 select ARM_AMBA
415 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100416 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100417 select CPU_ARM920T
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100418 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000419 help
420 This enables support for the Cirrus EP93xx series of CPUs.
421
Linus Torvalds1da177e2005-04-16 15:20:36 -0700422config ARCH_FOOTBRIDGE
423 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000424 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700425 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000426 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200427 select HAVE_IDE
Rob Herring8ef6e622012-03-01 20:48:12 -0600428 select NEED_MACH_IO_H if !MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400429 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000430 help
431 Support for systems based on the DC21285 companion chip
432 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700433
Russell King788c9702009-04-26 14:21:59 +0100434config ARCH_MXC
435 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100436 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100437 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100438 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100439 select GENERIC_CLOCKEVENTS
Shawn Guo8b6c44f2011-06-07 13:59:14 +0800440 select GENERIC_IRQ_CHIP
Sascha Hauerffa2ea32011-09-20 14:31:24 +0200441 select MULTI_IRQ_HANDLER
Shawn Guo8842a9e2012-06-14 11:16:14 +0800442 select SPARSE_IRQ
Uwe Kleine-König3e62af82012-07-06 09:47:20 +0200443 select USE_OF
Russell King788c9702009-04-26 14:21:59 +0100444 help
445 Support for Freescale MXC/iMX-based family of processors
446
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800447config ARCH_MXS
448 bool "Freescale MXS-based"
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800449 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100450 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100451 select CLKSRC_MMIO
Shawn Guo26646812012-04-29 00:02:39 +0800452 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100453 select GENERIC_CLOCKEVENTS
Shawn Guo6abda3e2011-12-20 16:12:34 +0800454 select HAVE_CLK_PREPARE
Shawn Guo4e0a1b82012-08-20 10:14:56 +0800455 select MULTI_IRQ_HANDLER
Shawn Guoa0f5e362012-05-06 23:13:13 +0800456 select PINCTRL
Shawn Guoc2668202012-08-20 21:52:12 +0800457 select SPARSE_IRQ
Shawn Guo6c4d4ef2012-05-04 21:42:41 +0800458 select USE_OF
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800459 help
460 Support for Freescale MXS-based family of processors
461
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100462config ARCH_NETX
463 bool "Hilscher NetX based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100464 select ARM_VIC
Russell King234b6ced2011-05-08 14:09:47 +0100465 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000466 select CPU_ARM926T
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100467 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000468 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100469 This enables support for systems based on the Hilscher NetX Soc
470
471config ARCH_H720X
472 bool "Hynix HMS720x-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100473 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000474 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100475 select ISA_DMA_API
476 help
477 This enables support for systems based on the Hynix HMS720x
478
Russell King3b938be2007-05-12 11:25:44 +0100479config ARCH_IOP13XX
480 bool "IOP13xx-based"
481 depends on MMU
Russell King3b938be2007-05-12 11:25:44 +0100482 select ARCH_SUPPORTS_MSI
Russell Kingb1b3f492012-10-06 17:12:25 +0100483 select CPU_XSC3
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400484 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600485 select NEED_RET_TO_USER
Russell Kingb1b3f492012-10-06 17:12:25 +0100486 select PCI
487 select PLAT_IOP
488 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100489 help
490 Support for Intel's IOP13XX (XScale) family of processors.
491
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100492config ARCH_IOP32X
493 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100494 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100495 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000496 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500497 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600498 select NEED_RET_TO_USER
Russell Kingf7e68bb2005-05-05 14:49:01 +0100499 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100500 select PLAT_IOP
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000501 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100502 Support for Intel's 80219 and IOP32X (XScale) family of
503 processors.
504
505config ARCH_IOP33X
506 bool "IOP33x-based"
507 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100508 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000509 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500510 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600511 select NEED_RET_TO_USER
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100512 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100513 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100514 help
515 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700516
Russell King3b938be2007-05-12 11:25:44 +0100517config ARCH_IXP4XX
518 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100519 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500520 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell Kingb1b3f492012-10-06 17:12:25 +0100521 select ARCH_REQUIRE_GPIOLIB
Russell King234b6ced2011-05-08 14:09:47 +0100522 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000523 select CPU_XSCALE
Russell Kingb1b3f492012-10-06 17:12:25 +0100524 select DMABOUNCE if PCI
Russell King3b938be2007-05-12 11:25:44 +0100525 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100526 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600527 select NEED_MACH_IO_H
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100528 help
Russell King3b938be2007-05-12 11:25:44 +0100529 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100530
Saeed Bisharaedabd382009-08-06 15:12:43 +0300531config ARCH_DOVE
532 bool "Marvell Dove"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300533 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100534 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300535 select GENERIC_CLOCKEVENTS
Russell King0f81bd42012-09-09 20:34:13 +0100536 select MIGHT_HAVE_PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200537 select PLAT_ORION_LEGACY
Russell King0f81bd42012-09-09 20:34:13 +0100538 select USB_ARCH_HAS_EHCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300539 help
540 Support for the Marvell Dove SoC 88AP510
541
Saeed Bishara651c74c2008-06-22 22:45:06 +0200542config ARCH_KIRKWOOD
543 bool "Marvell Kirkwood"
Erik Benadaa8865652009-05-28 17:08:55 -0700544 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100545 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200546 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100547 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200548 select PLAT_ORION_LEGACY
Saeed Bishara651c74c2008-06-22 22:45:06 +0200549 help
550 Support for the following Marvell Kirkwood series SoCs:
551 88F6180, 88F6192 and 88F6281.
552
Russell King788c9702009-04-26 14:21:59 +0100553config ARCH_MV78XX0
554 bool "Marvell MV78xx0"
Erik Benadaa8865652009-05-28 17:08:55 -0700555 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100556 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100557 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100558 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200559 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100560 help
561 Support for the following Marvell MV78xx0 series SoCs:
562 MV781x0, MV782x0.
563
564config ARCH_ORION5X
565 bool "Marvell Orion"
566 depends on MMU
Erik Benadaa8865652009-05-28 17:08:55 -0700567 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100568 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100569 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100570 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200571 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100572 help
573 Support for the following Marvell Orion 5x series SoCs:
574 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
575 Orion-2 (5281), Orion-1-90 (6183).
576
577config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500578 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100579 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100580 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100581 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100582 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100583 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800584 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800585 select IRQ_DOMAIN
Russell Kingb1b3f492012-10-06 17:12:25 +0100586 select NEED_MACH_GPIO_H
Russell King788c9702009-04-26 14:21:59 +0100587 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400588 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100589 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500590 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100591
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100592config ARCH_KS8695
593 bool "Micrel/Kendin KS8695"
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100594 select ARCH_REQUIRE_GPIOLIB
Linus Walleijc7e783d2012-08-29 20:27:22 +0200595 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100596 select CPU_ARM922T
Linus Walleijc7e783d2012-08-29 20:27:22 +0200597 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100598 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100599 help
600 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
601 System-on-Chip devices.
602
Russell King788c9702009-04-26 14:21:59 +0100603config ARCH_W90X900
604 bool "Nuvoton W90X900 CPU"
wanzongshunc52d3d62009-06-10 15:49:32 +0100605 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100606 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100607 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100608 select CPU_ARM926T
wanzongshun58b53692009-08-14 15:36:44 +0100609 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200610 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100611 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
612 At present, the w90x900 has been renamed nuc900, regarding
613 the ARM series product line, you can login the following
614 link address to know more.
615
616 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
617 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400618
Russell King93e22562012-10-12 14:20:52 +0100619config ARCH_LPC32XX
620 bool "NXP LPC32XX"
621 select ARCH_REQUIRE_GPIOLIB
622 select ARM_AMBA
Russell King40737232011-01-06 22:32:52 +0000623 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100624 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100625 select CPU_ARM926T
626 select GENERIC_CLOCKEVENTS
627 select HAVE_IDE
628 select HAVE_PWM
629 select USB_ARCH_HAS_OHCI
630 select USE_OF
631 help
632 Support for the NXP LPC32XX family of processors
633
wanzongshuna62e9032009-12-31 15:06:05 +0100634config ARCH_TEGRA
635 bool "NVIDIA Tegra"
Russell Kingb1b3f492012-10-06 17:12:25 +0100636 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800637 select CLKDEV_LOOKUP
638 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100639 select COMMON_CLK
Erik Gillingc5f80062010-01-21 16:53:02 -0800640 select GENERIC_CLOCKEVENTS
641 select GENERIC_GPIO
642 select HAVE_CLK
Dave Martin3b556582011-12-07 15:38:04 +0000643 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000644 select MIGHT_HAVE_CACHE_L2X0
Stephen Warren2c95b7e2012-05-21 15:07:19 -0600645 select USE_OF
Erik Gillingc5f80062010-01-21 16:53:02 -0800646 help
647 This enables support for NVIDIA Tegra based systems (Tegra APX,
648 Tegra 6xx and Tegra 2 series).
649
Linus Torvalds1da177e2005-04-16 15:20:36 -0700650config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700651 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100652 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100653 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100654 select ARCH_MTD_XIP
655 select ARCH_REQUIRE_GPIOLIB
656 select ARM_CPU_SUSPEND if PM
657 select AUTO_ZRELADDR
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100658 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100659 select CLKSRC_MMIO
Eric Miao981d0f32007-07-24 01:22:43 +0100660 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800661 select GPIO_PXA
Russell Kingb1b3f492012-10-06 17:12:25 +0100662 select HAVE_IDE
663 select MULTI_IRQ_HANDLER
664 select NEED_MACH_GPIO_H
Eric Miaobd5ce432009-01-20 12:06:01 +0800665 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800666 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000667 help
eric miao2c8086a2007-09-11 19:13:17 -0700668 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700669
Russell King788c9702009-04-26 14:21:59 +0100670config ARCH_MSM
671 bool "Qualcomm MSM"
Pavel Machek923a0812010-06-02 11:11:12 -0700672 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800673 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100674 select GENERIC_CLOCKEVENTS
675 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800676 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800677 Support for Qualcomm MSM/QSD based systems. This runs on the
678 apps processor of the MSM/QSD and depends on a shared memory
679 interface to the modem processor which runs the baseband
680 stack and controls some vital subsystems
681 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800682
Magnus Dammc793c1b2010-02-05 11:14:49 +0000683config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900684 bool "Renesas SH-Mobile / R-Mobile"
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900685 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100686 select GENERIC_CLOCKEVENTS
687 select HAVE_CLK
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900688 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000689 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000690 select MIGHT_HAVE_CACHE_L2X0
Magnus Damm60f14352010-12-28 08:26:52 +0000691 select MULTI_IRQ_HANDLER
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400692 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100693 select NO_IOPORT
694 select PM_GENERIC_DOMAINS if PM
695 select SPARSE_IRQ
Magnus Dammc793c1b2010-02-05 11:14:49 +0000696 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900697 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000698
Linus Torvalds1da177e2005-04-16 15:20:36 -0700699config ARCH_RPC
700 bool "RiscPC"
701 select ARCH_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100702 select ARCH_MAY_HAVE_PC_FDC
Russell King07f841b2008-10-01 17:11:06 +0100703 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000704 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100705 select FIQ
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200706 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100707 select HAVE_PATA_PLATFORM
708 select ISA_DMA_API
Rob Herringc334bc12012-03-04 22:03:33 -0600709 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400710 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100711 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700712 help
713 On the Acorn Risc-PC, Linux can support the internal IDE disk and
714 CD-ROM interface, serial and parallel port, and the floppy drive.
715
716config ARCH_SA1100
717 bool "SA1100-based"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100718 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100719 select ARCH_MTD_XIP
Michael Buesch7444a722008-07-25 01:46:11 -0700720 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100721 select ARCH_SPARSEMEM_ENABLE
722 select CLKDEV_LOOKUP
723 select CLKSRC_MMIO
724 select CPU_FREQ
725 select CPU_SA1100
726 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200727 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100728 select ISA
Rob Herring01464222012-08-28 13:06:41 -0500729 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400730 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100731 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000732 help
733 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700734
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900735config ARCH_S3C24XX
736 bool "Samsung S3C24XX SoCs"
Ben Dooks9d56c022009-07-30 23:23:25 +0100737 select ARCH_HAS_CPUFREQ
John Stultz5cfc8ee2010-03-24 00:22:36 +0000738 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100739 select CLKDEV_LOOKUP
740 select GENERIC_GPIO
741 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900742 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900743 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100744 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500745 select NEED_MACH_GPIO_H
Rob Herringc334bc12012-03-04 22:03:33 -0600746 select NEED_MACH_IO_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700747 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900748 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
749 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
750 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
751 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900752
Ben Dooksa08ab632008-10-21 14:06:39 +0100753config ARCH_S3C64XX
754 bool "Samsung S3C64XX"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100755 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900756 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100757 select ARCH_USES_GETTIMEOFFSET
758 select ARM_VIC
759 select CLKDEV_LOOKUP
760 select CPU_V6
761 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900762 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900763 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100764 select HAVE_TCM
Rob Herring01464222012-08-28 13:06:41 -0500765 select NEED_MACH_GPIO_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100766 select NO_IOPORT
767 select PLAT_SAMSUNG
768 select S3C_DEV_NAND
769 select S3C_GPIO_TRACK
770 select SAMSUNG_CLKSRC
771 select SAMSUNG_GPIOLIB_4BIT
772 select SAMSUNG_IRQ_VIC_TIMER
773 select USB_ARCH_HAS_OHCI
Ben Dooksa08ab632008-10-21 14:06:39 +0100774 help
775 Samsung S3C64XX series based systems
776
Kukjin Kim49b7a492010-09-07 15:47:18 +0900777config ARCH_S5P64X0
778 bool "Samsung S5P6440 S5P6450"
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900779 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900780 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100781 select CPU_V6
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900782 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100783 select GENERIC_GPIO
784 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900785 select HAVE_S3C2410_I2C if I2C
Russell Kingb1b3f492012-10-06 17:12:25 +0100786 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim754961a2010-11-13 16:11:46 +0900787 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500788 select NEED_MACH_GPIO_H
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900789 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900790 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
791 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900792
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200793config ARCH_S5PC100
794 bool "Samsung S5PC100"
Russell Kingb1b3f492012-10-06 17:12:25 +0100795 select ARCH_USES_GETTIMEOFFSET
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900796 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900797 select CPU_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100798 select GENERIC_GPIO
799 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900800 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900801 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100802 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500803 select NEED_MACH_GPIO_H
Byungho Min5a7652f2009-06-23 21:39:42 +0900804 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200805 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900806
Kukjin Kim170f4e42010-02-24 16:40:44 +0900807config ARCH_S5PV210
808 bool "Samsung S5PV210/S5PC110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100809 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900810 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100811 select ARCH_SPARSEMEM_ENABLE
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900812 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900813 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100814 select CPU_V7
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900815 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100816 select GENERIC_GPIO
817 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900818 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900819 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100820 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500821 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400822 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900823 help
824 Samsung S5PV210/S5PC110 series based systems
825
Kukjin Kim83014572011-11-06 13:54:56 +0900826config ARCH_EXYNOS
Russell King93e22562012-10-12 14:20:52 +0100827 bool "Samsung EXYNOS"
Russell Kingb1b3f492012-10-06 17:12:25 +0100828 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900829 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100830 select ARCH_SPARSEMEM_ENABLE
831 select CLKDEV_LOOKUP
832 select CPU_V7
833 select GENERIC_CLOCKEVENTS
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900834 select GENERIC_GPIO
835 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900836 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900837 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100838 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500839 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400840 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900841 help
Kukjin Kim83014572011-11-06 13:54:56 +0900842 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900843
Linus Torvalds1da177e2005-04-16 15:20:36 -0700844config ARCH_SHARK
845 bool "Shark"
Russell Kingb1b3f492012-10-06 17:12:25 +0100846 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000847 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100848 select ISA
849 select ISA_DMA
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400850 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100851 select PCI
852 select ZONE_DMA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000853 help
854 Support for the StrongARM based Digital DNARD machine, also known
855 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700856
Linus Walleijd98aac72009-04-27 10:21:46 +0100857config ARCH_U300
858 bool "ST-Ericsson U300 Series"
859 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100860 select ARCH_REQUIRE_GPIOLIB
Linus Walleijd98aac72009-04-27 10:21:46 +0100861 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200862 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100863 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100864 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100865 select CLKSRC_MMIO
Linus Walleij50667d62012-06-19 23:44:25 +0200866 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100867 select CPU_ARM926T
868 select GENERIC_CLOCKEVENTS
Linus Walleijd98aac72009-04-27 10:21:46 +0100869 select GENERIC_GPIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100870 select HAVE_TCM
Linus Walleija4fe2922012-08-13 13:49:45 +0200871 select SPARSE_IRQ
Linus Walleijd98aac72009-04-27 10:21:46 +0100872 help
873 Support for ST-Ericsson U300 series mobile platforms.
874
Russell Kingccf50e22010-03-15 19:03:06 +0000875config ARCH_U8500
876 bool "ST-Ericsson U8500 Series"
Arnd Bergmann67ae14f2012-02-25 12:48:49 -0700877 depends on MMU
Martin Persson7c1a70e2010-12-08 15:13:42 +0100878 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100879 select ARCH_REQUIRE_GPIOLIB
880 select ARM_AMBA
881 select CLKDEV_LOOKUP
882 select CPU_V7
883 select GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +0000884 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000885 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000886 help
887 Support for ST-Ericsson's Ux500 architecture
888
889config ARCH_NOMADIK
890 bool "STMicroelectronics Nomadik"
Russell Kingb1b3f492012-10-06 17:12:25 +0100891 select ARCH_REQUIRE_GPIOLIB
Russell Kingccf50e22010-03-15 19:03:06 +0000892 select ARM_AMBA
893 select ARM_VIC
Linus Walleij4a31bd22012-01-11 13:52:34 +0100894 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100895 select CPU_ARM926T
Russell Kingccf50e22010-03-15 19:03:06 +0000896 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100897 select MIGHT_HAVE_CACHE_L2X0
Arnd Bergmann0fa7be42012-05-15 11:24:34 +0000898 select PINCTRL
Linus Walleij2601ccf2012-08-10 00:43:40 +0200899 select PINCTRL_STN8815
Russell Kingccf50e22010-03-15 19:03:06 +0000900 help
901 Support for the Nomadik platform by ST-Ericsson
902
Russell King93e22562012-10-12 14:20:52 +0100903config PLAT_SPEAR
904 bool "ST SPEAr"
905 select ARCH_REQUIRE_GPIOLIB
906 select ARM_AMBA
907 select CLKDEV_LOOKUP
908 select CLKSRC_MMIO
909 select COMMON_CLK
910 select GENERIC_CLOCKEVENTS
911 select HAVE_CLK
912 help
913 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
914
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100915config ARCH_DAVINCI
916 bool "TI DaVinci"
Russell Kingb1b3f492012-10-06 17:12:25 +0100917 select ARCH_HAS_HOLES_MEMORYMODEL
David Brownelldce11152008-09-07 23:41:04 -0700918 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100919 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700920 select GENERIC_ALLOCATOR
Russell Kingb1b3f492012-10-06 17:12:25 +0100921 select GENERIC_CLOCKEVENTS
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100922 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100923 select HAVE_IDE
Rob Herring01464222012-08-28 13:06:41 -0500924 select NEED_MACH_GPIO_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100925 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100926 help
927 Support for TI's DaVinci platform.
928
Russell King3b938be2007-05-12 11:25:44 +0100929config ARCH_OMAP
930 bool "TI OMAP"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600931 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100932 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100933 select ARCH_HAS_HOLES_MEMORYMODEL
934 select ARCH_REQUIRE_GPIOLIB
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700935 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700936 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100937 select HAVE_CLK
Rob Herring01464222012-08-28 13:06:41 -0500938 select NEED_MACH_GPIO_H
Russell King3b938be2007-05-12 11:25:44 +0100939 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200940 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100941
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100942config ARCH_VT8500
943 bool "VIA/WonderMedia 85xx"
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100944 select ARCH_HAS_CPUFREQ
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100945 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200946 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100947 select COMMON_CLK
948 select CPU_ARM926T
949 select GENERIC_CLOCKEVENTS
950 select GENERIC_GPIO
951 select HAVE_CLK
952 select USE_OF
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100953 help
954 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +0800955
John Linnb85a3ef2011-06-20 11:47:27 -0600956config ARCH_ZYNQ
957 bool "Xilinx Zynq ARM Cortex A9 Platform"
Russell Kingb1b3f492012-10-06 17:12:25 +0100958 select ARM_AMBA
959 select ARM_GIC
960 select CLKDEV_LOOKUP
Binghua Duan02c981c2011-07-08 17:40:12 +0800961 select CPU_V7
Binghua Duan02c981c2011-07-08 17:40:12 +0800962 select GENERIC_CLOCKEVENTS
John Linnb85a3ef2011-06-20 11:47:27 -0600963 select ICST
Dave Martince5ea9f2011-11-29 15:56:19 +0000964 select MIGHT_HAVE_CACHE_L2X0
Binghua Duan02c981c2011-07-08 17:40:12 +0800965 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +0800966 help
John Linnb85a3ef2011-06-20 11:47:27 -0600967 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -0700968endchoice
969
Rob Herring387798b2012-09-06 13:41:12 -0500970menu "Multiple platform selection"
971 depends on ARCH_MULTIPLATFORM
972
973comment "CPU Core family selection"
974
975config ARCH_MULTI_V4
976 bool "ARMv4 based platforms (FA526, StrongARM)"
Rob Herring387798b2012-09-06 13:41:12 -0500977 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100978 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500979
980config ARCH_MULTI_V4T
981 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500982 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100983 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500984
985config ARCH_MULTI_V5
986 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500987 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100988 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500989
990config ARCH_MULTI_V4_V5
991 bool
992
993config ARCH_MULTI_V6
994 bool "ARMv6 based platforms (ARM11, Scorpion, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500995 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100996 select CPU_V6
Rob Herring387798b2012-09-06 13:41:12 -0500997
998config ARCH_MULTI_V7
999 bool "ARMv7 based platforms (Cortex-A, PJ4, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -05001000 default y
1001 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +01001002 select ARCH_VEXPRESS
1003 select CPU_V7
Rob Herring387798b2012-09-06 13:41:12 -05001004
1005config ARCH_MULTI_V6_V7
1006 bool
1007
1008config ARCH_MULTI_CPU_AUTO
1009 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
1010 select ARCH_MULTI_V5
1011
1012endmenu
1013
Russell Kingccf50e22010-03-15 19:03:06 +00001014#
1015# This is sorted alphabetically by mach-* pathname. However, plat-*
1016# Kconfigs may be included either alphabetically (according to the
1017# plat- suffix) or along side the corresponding mach-* source.
1018#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +02001019source "arch/arm/mach-mvebu/Kconfig"
1020
Russell King95b8f202010-01-14 11:43:54 +00001021source "arch/arm/mach-at91/Kconfig"
1022
Linus Torvalds1da177e2005-04-16 15:20:36 -07001023source "arch/arm/mach-clps711x/Kconfig"
1024
Anton Vorontsovd94f9442010-03-25 17:12:41 +03001025source "arch/arm/mach-cns3xxx/Kconfig"
1026
Russell King95b8f202010-01-14 11:43:54 +00001027source "arch/arm/mach-davinci/Kconfig"
1028
1029source "arch/arm/mach-dove/Kconfig"
1030
Lennert Buytenheke7736d42006-03-20 17:10:13 +00001031source "arch/arm/mach-ep93xx/Kconfig"
1032
Linus Torvalds1da177e2005-04-16 15:20:36 -07001033source "arch/arm/mach-footbridge/Kconfig"
1034
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001035source "arch/arm/mach-gemini/Kconfig"
1036
Russell King95b8f202010-01-14 11:43:54 +00001037source "arch/arm/mach-h720x/Kconfig"
1038
Rob Herring387798b2012-09-06 13:41:12 -05001039source "arch/arm/mach-highbank/Kconfig"
1040
Linus Torvalds1da177e2005-04-16 15:20:36 -07001041source "arch/arm/mach-integrator/Kconfig"
1042
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001043source "arch/arm/mach-iop32x/Kconfig"
1044
1045source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001046
Dan Williams285f5fa2006-12-07 02:59:39 +01001047source "arch/arm/mach-iop13xx/Kconfig"
1048
Linus Torvalds1da177e2005-04-16 15:20:36 -07001049source "arch/arm/mach-ixp4xx/Kconfig"
1050
Russell King95b8f202010-01-14 11:43:54 +00001051source "arch/arm/mach-kirkwood/Kconfig"
1052
1053source "arch/arm/mach-ks8695/Kconfig"
1054
Russell King95b8f202010-01-14 11:43:54 +00001055source "arch/arm/mach-msm/Kconfig"
1056
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001057source "arch/arm/mach-mv78xx0/Kconfig"
1058
Russell King95b8f202010-01-14 11:43:54 +00001059source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001060
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001061source "arch/arm/mach-mxs/Kconfig"
1062
Russell King95b8f202010-01-14 11:43:54 +00001063source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001064
Russell King95b8f202010-01-14 11:43:54 +00001065source "arch/arm/mach-nomadik/Kconfig"
1066source "arch/arm/plat-nomadik/Kconfig"
1067
Tony Lindgrend48af152005-07-10 19:58:17 +01001068source "arch/arm/plat-omap/Kconfig"
1069
1070source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001071
Tony Lindgren1dbae812005-11-10 14:26:51 +00001072source "arch/arm/mach-omap2/Kconfig"
1073
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001074source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001075
Rob Herring387798b2012-09-06 13:41:12 -05001076source "arch/arm/mach-picoxcell/Kconfig"
1077
Russell King95b8f202010-01-14 11:43:54 +00001078source "arch/arm/mach-pxa/Kconfig"
1079source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001080
Russell King95b8f202010-01-14 11:43:54 +00001081source "arch/arm/mach-mmp/Kconfig"
1082
1083source "arch/arm/mach-realview/Kconfig"
1084
1085source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001086
Ben Dookscf383672009-11-10 00:14:58 +00001087source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001088source "arch/arm/plat-s3c24xx/Kconfig"
1089
Rob Herring387798b2012-09-06 13:41:12 -05001090source "arch/arm/mach-socfpga/Kconfig"
1091
viresh kumarcee37e52010-04-01 12:31:05 +01001092source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001093
Kukjin Kim85fd6d62012-02-06 09:38:19 +09001094source "arch/arm/mach-s3c24xx/Kconfig"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001095if ARCH_S3C24XX
Ben Dooksa21765a2007-02-11 18:31:01 +01001096source "arch/arm/mach-s3c2412/Kconfig"
1097source "arch/arm/mach-s3c2440/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001098endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001099
Ben Dooksa08ab632008-10-21 14:06:39 +01001100if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001101source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001102endif
1103
Kukjin Kim49b7a492010-09-07 15:47:18 +09001104source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001105
Byungho Min5a7652f2009-06-23 21:39:42 +09001106source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001107
Kukjin Kim170f4e42010-02-24 16:40:44 +09001108source "arch/arm/mach-s5pv210/Kconfig"
1109
Kukjin Kim83014572011-11-06 13:54:56 +09001110source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001111
Russell King882d01f2010-03-02 23:40:15 +00001112source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001113
Barry Song156a0992012-08-23 13:41:58 +08001114source "arch/arm/mach-prima2/Kconfig"
1115
Erik Gillingc5f80062010-01-21 16:53:02 -08001116source "arch/arm/mach-tegra/Kconfig"
1117
Russell King95b8f202010-01-14 11:43:54 +00001118source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001119
Russell King95b8f202010-01-14 11:43:54 +00001120source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001121
1122source "arch/arm/mach-versatile/Kconfig"
1123
Russell Kingceade892010-02-11 21:44:53 +00001124source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001125source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001126
wanzongshun7ec80dd2008-12-03 03:55:38 +01001127source "arch/arm/mach-w90x900/Kconfig"
1128
Linus Torvalds1da177e2005-04-16 15:20:36 -07001129# Definitions to make life easier
1130config ARCH_ACORN
1131 bool
1132
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001133config PLAT_IOP
1134 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001135 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001136
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001137config PLAT_ORION
1138 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001139 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +01001140 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001141 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +02001142 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001143
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +02001144config PLAT_ORION_LEGACY
1145 bool
1146 select PLAT_ORION
1147
Eric Miaobd5ce432009-01-20 12:06:01 +08001148config PLAT_PXA
1149 bool
1150
Russell Kingf4b8b312010-01-14 12:48:06 +00001151config PLAT_VERSATILE
1152 bool
1153
Russell Kinge3887712010-01-14 13:30:16 +00001154config ARM_TIMER_SP804
1155 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001156 select CLKSRC_MMIO
Rob Herringa7bf6162011-12-12 15:29:08 -06001157 select HAVE_SCHED_CLOCK
Russell Kinge3887712010-01-14 13:30:16 +00001158
Linus Torvalds1da177e2005-04-16 15:20:36 -07001159source arch/arm/mm/Kconfig
1160
Russell King958cab02011-12-11 10:04:00 +00001161config ARM_NR_BANKS
1162 int
1163 default 16 if ARCH_EP93XX
1164 default 8
1165
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001166config IWMMXT
1167 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001168 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1169 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001170 help
1171 Enable support for iWMMXt context switching at run time if
1172 running on a CPU that supports it.
1173
Linus Torvalds1da177e2005-04-16 15:20:36 -07001174config XSCALE_PMU
1175 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001176 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001177 default y
1178
eric miao52108642010-12-13 09:42:34 +01001179config MULTI_IRQ_HANDLER
1180 bool
1181 help
1182 Allow each machine to specify it's own IRQ handler at run time.
1183
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001184if !MMU
1185source "arch/arm/Kconfig-nommu"
1186endif
1187
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001188config ARM_ERRATA_326103
1189 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1190 depends on CPU_V6
1191 help
1192 Executing a SWP instruction to read-only memory does not set bit 11
1193 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1194 treat the access as a read, preventing a COW from occurring and
1195 causing the faulting task to livelock.
1196
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001197config ARM_ERRATA_411920
1198 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001199 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001200 help
1201 Invalidation of the Instruction Cache operation can
1202 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1203 It does not affect the MPCore. This option enables the ARM Ltd.
1204 recommended workaround.
1205
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001206config ARM_ERRATA_430973
1207 bool "ARM errata: Stale prediction on replaced interworking branch"
1208 depends on CPU_V7
1209 help
1210 This option enables the workaround for the 430973 Cortex-A8
1211 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1212 interworking branch is replaced with another code sequence at the
1213 same virtual address, whether due to self-modifying code or virtual
1214 to physical address re-mapping, Cortex-A8 does not recover from the
1215 stale interworking branch prediction. This results in Cortex-A8
1216 executing the new code sequence in the incorrect ARM or Thumb state.
1217 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1218 and also flushes the branch target cache at every context switch.
1219 Note that setting specific bits in the ACTLR register may not be
1220 available in non-secure mode.
1221
Catalin Marinas855c5512009-04-30 17:06:15 +01001222config ARM_ERRATA_458693
1223 bool "ARM errata: Processor deadlock when a false hazard is created"
1224 depends on CPU_V7
1225 help
1226 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1227 erratum. For very specific sequences of memory operations, it is
1228 possible for a hazard condition intended for a cache line to instead
1229 be incorrectly associated with a different cache line. This false
1230 hazard might then cause a processor deadlock. The workaround enables
1231 the L1 caching of the NEON accesses and disables the PLD instruction
1232 in the ACTLR register. Note that setting specific bits in the ACTLR
1233 register may not be available in non-secure mode.
1234
Catalin Marinas0516e462009-04-30 17:06:20 +01001235config ARM_ERRATA_460075
1236 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1237 depends on CPU_V7
1238 help
1239 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1240 erratum. Any asynchronous access to the L2 cache may encounter a
1241 situation in which recent store transactions to the L2 cache are lost
1242 and overwritten with stale memory contents from external memory. The
1243 workaround disables the write-allocate mode for the L2 cache via the
1244 ACTLR register. Note that setting specific bits in the ACTLR register
1245 may not be available in non-secure mode.
1246
Will Deacon9f050272010-09-14 09:51:43 +01001247config ARM_ERRATA_742230
1248 bool "ARM errata: DMB operation may be faulty"
1249 depends on CPU_V7 && SMP
1250 help
1251 This option enables the workaround for the 742230 Cortex-A9
1252 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1253 between two write operations may not ensure the correct visibility
1254 ordering of the two writes. This workaround sets a specific bit in
1255 the diagnostic register of the Cortex-A9 which causes the DMB
1256 instruction to behave as a DSB, ensuring the correct behaviour of
1257 the two writes.
1258
Will Deacona672e992010-09-14 09:53:02 +01001259config ARM_ERRATA_742231
1260 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1261 depends on CPU_V7 && SMP
1262 help
1263 This option enables the workaround for the 742231 Cortex-A9
1264 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1265 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1266 accessing some data located in the same cache line, may get corrupted
1267 data due to bad handling of the address hazard when the line gets
1268 replaced from one of the CPUs at the same time as another CPU is
1269 accessing it. This workaround sets specific bits in the diagnostic
1270 register of the Cortex-A9 which reduces the linefill issuing
1271 capabilities of the processor.
1272
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001273config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001274 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001275 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001276 help
1277 The PL310 L2 cache controller implements three types of Clean &
1278 Invalidate maintenance operations: by Physical Address
1279 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1280 They are architecturally defined to behave as the execution of a
1281 clean operation followed immediately by an invalidate operation,
1282 both performing to the same memory location. This functionality
1283 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001284 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001285
1286config ARM_ERRATA_720789
1287 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001288 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001289 help
1290 This option enables the workaround for the 720789 Cortex-A9 (prior to
1291 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1292 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1293 As a consequence of this erratum, some TLB entries which should be
1294 invalidated are not, resulting in an incoherency in the system page
1295 tables. The workaround changes the TLB flushing routines to invalidate
1296 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001297
Russell King1f0090a2011-03-16 23:35:25 +00001298config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001299 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001300 depends on CACHE_L2X0
1301 help
1302 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1303 operation (offset 0x7FC). This operation runs in background so that
1304 PL310 can handle normal accesses while it is in progress. Under very
1305 rare circumstances, due to this erratum, write data can be lost when
1306 PL310 treats a cacheable write transaction during a Clean &
1307 Invalidate by Way operation.
1308
Will Deacon475d92f2010-09-28 14:02:02 +01001309config ARM_ERRATA_743622
1310 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1311 depends on CPU_V7
1312 help
1313 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001314 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001315 optimisation in the Cortex-A9 Store Buffer may lead to data
1316 corruption. This workaround sets a specific bit in the diagnostic
1317 register of the Cortex-A9 which disables the Store Buffer
1318 optimisation, preventing the defect from occurring. This has no
1319 visible impact on the overall performance or power consumption of the
1320 processor.
1321
Will Deacon9a27c272011-02-18 16:36:35 +01001322config ARM_ERRATA_751472
1323 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001324 depends on CPU_V7
Will Deacon9a27c272011-02-18 16:36:35 +01001325 help
1326 This option enables the workaround for the 751472 Cortex-A9 (prior
1327 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1328 completion of a following broadcasted operation if the second
1329 operation is received by a CPU before the ICIALLUIS has completed,
1330 potentially leading to corrupted entries in the cache or TLB.
1331
Will Deaconfa0ce402011-11-14 17:24:57 +01001332config PL310_ERRATA_753970
1333 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001334 depends on CACHE_PL310
1335 help
1336 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1337
1338 Under some condition the effect of cache sync operation on
1339 the store buffer still remains when the operation completes.
1340 This means that the store buffer is always asked to drain and
1341 this prevents it from merging any further writes. The workaround
1342 is to replace the normal offset of cache sync operation (0x730)
1343 by another offset targeting an unmapped PL310 register 0x740.
1344 This has the same effect as the cache sync operation: store buffer
1345 drain and waiting for all buffers empty.
1346
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001347config ARM_ERRATA_754322
1348 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1349 depends on CPU_V7
1350 help
1351 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1352 r3p*) erratum. A speculative memory access may cause a page table walk
1353 which starts prior to an ASID switch but completes afterwards. This
1354 can populate the micro-TLB with a stale entry which may be hit with
1355 the new ASID. This workaround places two dsb instructions in the mm
1356 switching code so that no page table walks can cross the ASID switch.
1357
Will Deacon5dab26a2011-03-04 12:38:54 +01001358config ARM_ERRATA_754327
1359 bool "ARM errata: no automatic Store Buffer drain"
1360 depends on CPU_V7 && SMP
1361 help
1362 This option enables the workaround for the 754327 Cortex-A9 (prior to
1363 r2p0) erratum. The Store Buffer does not have any automatic draining
1364 mechanism and therefore a livelock may occur if an external agent
1365 continuously polls a memory location waiting to observe an update.
1366 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1367 written polling loops from denying visibility of updates to memory.
1368
Catalin Marinas145e10e2011-08-15 11:04:41 +01001369config ARM_ERRATA_364296
1370 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1371 depends on CPU_V6 && !SMP
1372 help
1373 This options enables the workaround for the 364296 ARM1136
1374 r0p2 erratum (possible cache data corruption with
1375 hit-under-miss enabled). It sets the undocumented bit 31 in
1376 the auxiliary control register and the FI bit in the control
1377 register, thus disabling hit-under-miss without putting the
1378 processor into full low interrupt latency mode. ARM11MPCore
1379 is not affected.
1380
Will Deaconf630c1b2011-09-15 11:45:15 +01001381config ARM_ERRATA_764369
1382 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1383 depends on CPU_V7 && SMP
1384 help
1385 This option enables the workaround for erratum 764369
1386 affecting Cortex-A9 MPCore with two or more processors (all
1387 current revisions). Under certain timing circumstances, a data
1388 cache line maintenance operation by MVA targeting an Inner
1389 Shareable memory region may fail to proceed up to either the
1390 Point of Coherency or to the Point of Unification of the
1391 system. This workaround adds a DSB instruction before the
1392 relevant cache maintenance functions and sets a specific bit
1393 in the diagnostic control register of the SCU.
1394
Will Deacon11ed0ba2011-11-14 17:24:58 +01001395config PL310_ERRATA_769419
1396 bool "PL310 errata: no automatic Store Buffer drain"
1397 depends on CACHE_L2X0
1398 help
1399 On revisions of the PL310 prior to r3p2, the Store Buffer does
1400 not automatically drain. This can cause normal, non-cacheable
1401 writes to be retained when the memory system is idle, leading
1402 to suboptimal I/O performance for drivers using coherent DMA.
1403 This option adds a write barrier to the cpu_idle loop so that,
1404 on systems with an outer cache, the store buffer is drained
1405 explicitly.
1406
Simon Horman7253b852012-09-28 02:12:45 +01001407config ARM_ERRATA_775420
1408 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1409 depends on CPU_V7
1410 help
1411 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1412 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1413 operation aborts with MMU exception, it might cause the processor
1414 to deadlock. This workaround puts DSB before executing ISB if
1415 an abort may occur on cache maintenance.
1416
Linus Torvalds1da177e2005-04-16 15:20:36 -07001417endmenu
1418
1419source "arch/arm/common/Kconfig"
1420
Linus Torvalds1da177e2005-04-16 15:20:36 -07001421menu "Bus support"
1422
1423config ARM_AMBA
1424 bool
1425
1426config ISA
1427 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001428 help
1429 Find out whether you have ISA slots on your motherboard. ISA is the
1430 name of a bus system, i.e. the way the CPU talks to the other stuff
1431 inside your box. Other bus systems are PCI, EISA, MicroChannel
1432 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1433 newer boards don't support it. If you have ISA, say Y, otherwise N.
1434
Russell King065909b2006-01-04 15:44:16 +00001435# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001436config ISA_DMA
1437 bool
Russell King065909b2006-01-04 15:44:16 +00001438 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001439
Russell King065909b2006-01-04 15:44:16 +00001440# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001441config ISA_DMA_API
1442 bool
Al Viro5cae8412005-05-04 05:39:22 +01001443
Linus Torvalds1da177e2005-04-16 15:20:36 -07001444config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001445 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001446 help
1447 Find out whether you have a PCI motherboard. PCI is the name of a
1448 bus system, i.e. the way the CPU talks to the other stuff inside
1449 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1450 VESA. If you have PCI, say Y, otherwise N.
1451
Anton Vorontsov52882172010-04-19 13:20:49 +01001452config PCI_DOMAINS
1453 bool
1454 depends on PCI
1455
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001456config PCI_NANOENGINE
1457 bool "BSE nanoEngine PCI support"
1458 depends on SA1100_NANOENGINE
1459 help
1460 Enable PCI on the BSE nanoEngine board.
1461
Matthew Wilcox36e23592007-07-10 10:54:40 -06001462config PCI_SYSCALL
1463 def_bool PCI
1464
Linus Torvalds1da177e2005-04-16 15:20:36 -07001465# Select the host bridge type
1466config PCI_HOST_VIA82C505
1467 bool
1468 depends on PCI && ARCH_SHARK
1469 default y
1470
Mike Rapoporta0113a92007-11-25 08:55:34 +01001471config PCI_HOST_ITE8152
1472 bool
1473 depends on PCI && MACH_ARMCORE
1474 default y
1475 select DMABOUNCE
1476
Linus Torvalds1da177e2005-04-16 15:20:36 -07001477source "drivers/pci/Kconfig"
1478
1479source "drivers/pcmcia/Kconfig"
1480
1481endmenu
1482
1483menu "Kernel Features"
1484
Dave Martin3b556582011-12-07 15:38:04 +00001485config HAVE_SMP
1486 bool
1487 help
1488 This option should be selected by machines which have an SMP-
1489 capable CPU.
1490
1491 The only effect of this option is to make the SMP-related
1492 options available to the user for configuration.
1493
Linus Torvalds1da177e2005-04-16 15:20:36 -07001494config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001495 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001496 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001497 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001498 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001499 depends on MMU
Daniel Walker89c3ded2010-11-22 12:35:41 -08001500 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Russell Kingb1b3f492012-10-06 17:12:25 +01001501 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001502 help
1503 This enables support for systems with more than one CPU. If you have
1504 a system with only one CPU, like most personal computers, say N. If
1505 you have a system with more than one CPU, say Y.
1506
1507 If you say N here, the kernel will run on single and multiprocessor
1508 machines, but will use only one CPU of a multiprocessor machine. If
1509 you say Y here, the kernel will run on many, but not all, single
1510 processor machines. On a single processor machine, the kernel will
1511 run faster if you say N here.
1512
Paul Bolle395cf962011-08-15 02:02:26 +02001513 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001514 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001515 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001516
1517 If you don't know what to do here, say N.
1518
Russell Kingf00ec482010-09-04 10:47:48 +01001519config SMP_ON_UP
1520 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1521 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001522 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001523 default y
1524 help
1525 SMP kernels contain instructions which fail on non-SMP processors.
1526 Enabling this option allows the kernel to modify itself to make
1527 these instructions safe. Disabling it allows about 1K of space
1528 savings.
1529
1530 If you don't know what to do here, say Y.
1531
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001532config ARM_CPU_TOPOLOGY
1533 bool "Support cpu topology definition"
1534 depends on SMP && CPU_V7
1535 default y
1536 help
1537 Support ARM cpu topology definition. The MPIDR register defines
1538 affinity between processors which is then used to describe the cpu
1539 topology of an ARM System.
1540
1541config SCHED_MC
1542 bool "Multi-core scheduler support"
1543 depends on ARM_CPU_TOPOLOGY
1544 help
1545 Multi-core scheduler support improves the CPU scheduler's decision
1546 making when dealing with multi-core CPU chips at a cost of slightly
1547 increased overhead in some places. If unsure say N here.
1548
1549config SCHED_SMT
1550 bool "SMT scheduler support"
1551 depends on ARM_CPU_TOPOLOGY
1552 help
1553 Improves the CPU scheduler's decision making when dealing with
1554 MultiThreading at a cost of slightly increased overhead in some
1555 places. If unsure say N here.
1556
Russell Kinga8cbcd92009-05-16 11:51:14 +01001557config HAVE_ARM_SCU
1558 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001559 help
1560 This option enables support for the ARM system coherency unit
1561
Marc Zyngier022c03a2012-01-11 17:25:17 +00001562config ARM_ARCH_TIMER
1563 bool "Architected timer support"
1564 depends on CPU_V7
1565 help
1566 This option enables support for the ARM architected timer
1567
Russell Kingf32f4ce2009-05-16 12:14:21 +01001568config HAVE_ARM_TWD
1569 bool
1570 depends on SMP
1571 help
1572 This options enables support for the ARM timer and watchdog unit
1573
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001574choice
1575 prompt "Memory split"
1576 default VMSPLIT_3G
1577 help
1578 Select the desired split between kernel and user memory.
1579
1580 If you are not absolutely sure what you are doing, leave this
1581 option alone!
1582
1583 config VMSPLIT_3G
1584 bool "3G/1G user/kernel split"
1585 config VMSPLIT_2G
1586 bool "2G/2G user/kernel split"
1587 config VMSPLIT_1G
1588 bool "1G/3G user/kernel split"
1589endchoice
1590
1591config PAGE_OFFSET
1592 hex
1593 default 0x40000000 if VMSPLIT_1G
1594 default 0x80000000 if VMSPLIT_2G
1595 default 0xC0000000
1596
Linus Torvalds1da177e2005-04-16 15:20:36 -07001597config NR_CPUS
1598 int "Maximum number of CPUs (2-32)"
1599 range 2 32
1600 depends on SMP
1601 default "4"
1602
Russell Kinga054a812005-11-02 22:24:33 +00001603config HOTPLUG_CPU
1604 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1605 depends on SMP && HOTPLUG && EXPERIMENTAL
1606 help
1607 Say Y here to experiment with turning CPUs off and on. CPUs
1608 can be controlled through /sys/devices/system/cpu.
1609
Russell King37ee16a2005-11-08 19:08:05 +00001610config LOCAL_TIMERS
1611 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001612 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001613 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001614 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001615 help
1616 Enable support for local timers on SMP platforms, rather then the
1617 legacy IPI broadcast method. Local timers allows the system
1618 accounting to be spread across the timer interval, preventing a
1619 "thundering herd" at every timer tick.
1620
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001621config ARCH_NR_GPIO
1622 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001623 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Philippe Langlais70227a42012-02-13 10:51:22 +01001624 default 355 if ARCH_U8500
Paul Parsons9a01ec32012-02-27 01:58:45 +00001625 default 264 if MACH_H4700
Tarun Kanti DebBarma39f47d92012-04-26 18:31:17 +05301626 default 512 if SOC_OMAP5
Tony Priske9a91de2012-08-03 21:00:06 +12001627 default 288 if ARCH_VT8500
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001628 default 0
1629 help
1630 Maximum number of GPIOs in the system.
1631
1632 If unsure, leave the default value.
1633
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001634source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001635
Russell Kingf8065812006-03-02 22:41:59 +00001636config HZ
1637 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001638 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001639 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001640 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001641 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001642 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001643 default 100
1644
Catalin Marinas16c79652009-07-24 12:33:02 +01001645config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001646 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001647 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001648 select AEABI
1649 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001650 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001651 help
1652 By enabling this option, the kernel will be compiled in
1653 Thumb-2 mode. A compiler/assembler that understand the unified
1654 ARM-Thumb syntax is needed.
1655
1656 If unsure, say N.
1657
Dave Martin6f685c52011-03-03 11:41:12 +01001658config THUMB2_AVOID_R_ARM_THM_JUMP11
1659 bool "Work around buggy Thumb-2 short branch relocations in gas"
1660 depends on THUMB2_KERNEL && MODULES
1661 default y
1662 help
1663 Various binutils versions can resolve Thumb-2 branches to
1664 locally-defined, preemptible global symbols as short-range "b.n"
1665 branch instructions.
1666
1667 This is a problem, because there's no guarantee the final
1668 destination of the symbol, or any candidate locations for a
1669 trampoline, are within range of the branch. For this reason, the
1670 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1671 relocation in modules at all, and it makes little sense to add
1672 support.
1673
1674 The symptom is that the kernel fails with an "unsupported
1675 relocation" error when loading some modules.
1676
1677 Until fixed tools are available, passing
1678 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1679 code which hits this problem, at the cost of a bit of extra runtime
1680 stack usage in some cases.
1681
1682 The problem is described in more detail at:
1683 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1684
1685 Only Thumb-2 kernels are affected.
1686
1687 Unless you are sure your tools don't have this problem, say Y.
1688
Catalin Marinas0becb082009-07-24 12:32:53 +01001689config ARM_ASM_UNIFIED
1690 bool
1691
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001692config AEABI
1693 bool "Use the ARM EABI to compile the kernel"
1694 help
1695 This option allows for the kernel to be compiled using the latest
1696 ARM ABI (aka EABI). This is only useful if you are using a user
1697 space environment that is also compiled with EABI.
1698
1699 Since there are major incompatibilities between the legacy ABI and
1700 EABI, especially with regard to structure member alignment, this
1701 option also changes the kernel syscall calling convention to
1702 disambiguate both ABIs and allow for backward compatibility support
1703 (selected with CONFIG_OABI_COMPAT).
1704
1705 To use this you need GCC version 4.0.0 or later.
1706
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001707config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001708 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001709 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001710 default y
1711 help
1712 This option preserves the old syscall interface along with the
1713 new (ARM EABI) one. It also provides a compatibility layer to
1714 intercept syscalls that have structure arguments which layout
1715 in memory differs between the legacy ABI and the new ARM EABI
1716 (only for non "thumb" binaries). This option adds a tiny
1717 overhead to all syscalls and produces a slightly larger kernel.
1718 If you know you'll be using only pure EABI user space then you
1719 can say N here. If this option is not selected and you attempt
1720 to execute a legacy ABI binary then the result will be
1721 UNPREDICTABLE (in fact it can be predicted that it won't work
1722 at all). If in doubt say Y.
1723
Mel Gormaneb335752009-05-13 17:34:48 +01001724config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001725 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001726
Russell King05944d72006-11-30 20:43:51 +00001727config ARCH_SPARSEMEM_ENABLE
1728 bool
1729
Russell King07a2f732008-10-01 21:39:58 +01001730config ARCH_SPARSEMEM_DEFAULT
1731 def_bool ARCH_SPARSEMEM_ENABLE
1732
Russell King05944d72006-11-30 20:43:51 +00001733config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001734 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001735
Will Deacon7b7bf492011-05-19 13:21:14 +01001736config HAVE_ARCH_PFN_VALID
1737 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1738
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001739config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001740 bool "High Memory Support"
1741 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001742 help
1743 The address space of ARM processors is only 4 Gigabytes large
1744 and it has to accommodate user address space, kernel address
1745 space as well as some memory mapped IO. That means that, if you
1746 have a large amount of physical memory and/or IO, not all of the
1747 memory can be "permanently mapped" by the kernel. The physical
1748 memory that is not permanently mapped is called "high memory".
1749
1750 Depending on the selected kernel/user memory split, minimum
1751 vmalloc space and actual amount of RAM, you may not need this
1752 option which should result in a slightly faster kernel.
1753
1754 If unsure, say n.
1755
Russell King65cec8e2009-08-17 20:02:06 +01001756config HIGHPTE
1757 bool "Allocate 2nd-level pagetables from highmem"
1758 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001759
Jamie Iles1b8873a2010-02-02 20:25:44 +01001760config HW_PERF_EVENTS
1761 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001762 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001763 default y
1764 help
1765 Enable hardware performance counter support for perf events. If
1766 disabled, perf events will use software events only.
1767
Dave Hansen3f22ab22005-06-23 00:07:43 -07001768source "mm/Kconfig"
1769
Magnus Dammc1b2d972010-07-05 10:00:11 +01001770config FORCE_MAX_ZONEORDER
1771 int "Maximum zone order" if ARCH_SHMOBILE
1772 range 11 64 if ARCH_SHMOBILE
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001773 default "12" if SOC_AM33XX
Magnus Dammc1b2d972010-07-05 10:00:11 +01001774 default "9" if SA1111
1775 default "11"
1776 help
1777 The kernel memory allocator divides physically contiguous memory
1778 blocks into "zones", where each zone is a power of two number of
1779 pages. This option selects the largest power of two that the kernel
1780 keeps in the memory allocator. If you need to allocate very large
1781 blocks of physically contiguous memory, then you may need to
1782 increase this value.
1783
1784 This config option is actually maximum order plus one. For example,
1785 a value of 11 means that the largest free memory block is 2^10 pages.
1786
Linus Torvalds1da177e2005-04-16 15:20:36 -07001787config ALIGNMENT_TRAP
1788 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001789 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001790 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001791 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001792 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001793 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001794 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1795 address divisible by 4. On 32-bit ARM processors, these non-aligned
1796 fetch/store instructions will be emulated in software if you say
1797 here, which has a severe performance impact. This is necessary for
1798 correct operation of some network protocols. With an IP-only
1799 configuration it is safe to say N, otherwise say Y.
1800
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001801config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001802 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1803 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001804 default y if CPU_FEROCEON
1805 help
1806 Implement faster copy_to_user and clear_user methods for CPU
1807 cores where a 8-word STM instruction give significantly higher
1808 memory write throughput than a sequence of individual 32bit stores.
1809
1810 A possible side effect is a slight increase in scheduling latency
1811 between threads sharing the same address space if they invoke
1812 such copy operations with large buffers.
1813
1814 However, if the CPU data cache is using a write-allocate mode,
1815 this option is unlikely to provide any performance gain.
1816
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001817config SECCOMP
1818 bool
1819 prompt "Enable seccomp to safely compute untrusted bytecode"
1820 ---help---
1821 This kernel feature is useful for number crunching applications
1822 that may need to compute untrusted bytecode during their
1823 execution. By using pipes or other transports made available to
1824 the process as file descriptors supporting the read/write
1825 syscalls, it's possible to isolate those applications in
1826 their own address space using seccomp. Once seccomp is
1827 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1828 and the task is only allowed to execute a few safe syscalls
1829 defined by each seccomp mode.
1830
Nicolas Pitrec743f382010-05-24 23:55:42 -04001831config CC_STACKPROTECTOR
1832 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001833 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001834 help
1835 This option turns on the -fstack-protector GCC feature. This
1836 feature puts, at the beginning of functions, a canary value on
1837 the stack just before the return address, and validates
1838 the value just before actually returning. Stack based buffer
1839 overflows (that need to overwrite this return address) now also
1840 overwrite the canary, which gets detected and the attack is then
1841 neutralized via a kernel panic.
1842 This feature requires gcc version 4.2 or above.
1843
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001844config XEN_DOM0
1845 def_bool y
1846 depends on XEN
1847
1848config XEN
1849 bool "Xen guest support on ARM (EXPERIMENTAL)"
1850 depends on EXPERIMENTAL && ARM && OF
1851 help
1852 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1853
Linus Torvalds1da177e2005-04-16 15:20:36 -07001854endmenu
1855
1856menu "Boot options"
1857
Grant Likely9eb8f672011-04-28 14:27:20 -06001858config USE_OF
1859 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001860 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001861 select OF
1862 select OF_EARLY_FLATTREE
1863 help
1864 Include support for flattened device tree machine descriptions.
1865
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001866config ATAGS
1867 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1868 default y
1869 help
1870 This is the traditional way of passing data to the kernel at boot
1871 time. If you are solely relying on the flattened device tree (or
1872 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1873 to remove ATAGS support from your kernel binary. If unsure,
1874 leave this to y.
1875
1876config DEPRECATED_PARAM_STRUCT
1877 bool "Provide old way to pass kernel parameters"
1878 depends on ATAGS
1879 help
1880 This was deprecated in 2001 and announced to live on for 5 years.
1881 Some old boot loaders still use this way.
1882
Linus Torvalds1da177e2005-04-16 15:20:36 -07001883# Compressed boot loader in ROM. Yes, we really want to ask about
1884# TEXT and BSS so we preserve their values in the config files.
1885config ZBOOT_ROM_TEXT
1886 hex "Compressed ROM boot loader base address"
1887 default "0"
1888 help
1889 The physical address at which the ROM-able zImage is to be
1890 placed in the target. Platforms which normally make use of
1891 ROM-able zImage formats normally set this to a suitable
1892 value in their defconfig file.
1893
1894 If ZBOOT_ROM is not enabled, this has no effect.
1895
1896config ZBOOT_ROM_BSS
1897 hex "Compressed ROM boot loader BSS address"
1898 default "0"
1899 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001900 The base address of an area of read/write memory in the target
1901 for the ROM-able zImage which must be available while the
1902 decompressor is running. It must be large enough to hold the
1903 entire decompressed kernel plus an additional 128 KiB.
1904 Platforms which normally make use of ROM-able zImage formats
1905 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001906
1907 If ZBOOT_ROM is not enabled, this has no effect.
1908
1909config ZBOOT_ROM
1910 bool "Compressed boot loader in ROM/flash"
1911 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1912 help
1913 Say Y here if you intend to execute your compressed kernel image
1914 (zImage) directly from ROM or flash. If unsure, say N.
1915
Simon Horman090ab3f2011-04-26 06:29:53 +01001916choice
1917 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1918 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1919 default ZBOOT_ROM_NONE
1920 help
1921 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001922 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001923 kernel image to an MMC or SD card and boot the kernel straight
1924 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001925 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001926 rest the kernel image to RAM.
1927
1928config ZBOOT_ROM_NONE
1929 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1930 help
1931 Do not load image from SD or MMC
1932
Simon Hormanf45b1142011-01-11 04:01:08 +01001933config ZBOOT_ROM_MMCIF
1934 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001935 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001936 Load image from MMCIF hardware block.
1937
1938config ZBOOT_ROM_SH_MOBILE_SDHI
1939 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1940 help
1941 Load image from SDHI hardware block
1942
1943endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001944
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001945config ARM_APPENDED_DTB
1946 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1947 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1948 help
1949 With this option, the boot code will look for a device tree binary
1950 (DTB) appended to zImage
1951 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1952
1953 This is meant as a backward compatibility convenience for those
1954 systems with a bootloader that can't be upgraded to accommodate
1955 the documented boot protocol using a device tree.
1956
1957 Beware that there is very little in terms of protection against
1958 this option being confused by leftover garbage in memory that might
1959 look like a DTB header after a reboot if no actual DTB is appended
1960 to zImage. Do not leave this option active in a production kernel
1961 if you don't intend to always append a DTB. Proper passing of the
1962 location into r2 of a bootloader provided DTB is always preferable
1963 to this option.
1964
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001965config ARM_ATAG_DTB_COMPAT
1966 bool "Supplement the appended DTB with traditional ATAG information"
1967 depends on ARM_APPENDED_DTB
1968 help
1969 Some old bootloaders can't be updated to a DTB capable one, yet
1970 they provide ATAGs with memory configuration, the ramdisk address,
1971 the kernel cmdline string, etc. Such information is dynamically
1972 provided by the bootloader and can't always be stored in a static
1973 DTB. To allow a device tree enabled kernel to be used with such
1974 bootloaders, this option allows zImage to extract the information
1975 from the ATAG list and store it at run time into the appended DTB.
1976
Genoud Richardd0f34a12012-06-26 16:37:59 +01001977choice
1978 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
1979 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1980
1981config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1982 bool "Use bootloader kernel arguments if available"
1983 help
1984 Uses the command-line options passed by the boot loader instead of
1985 the device tree bootargs property. If the boot loader doesn't provide
1986 any, the device tree bootargs property will be used.
1987
1988config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
1989 bool "Extend with bootloader kernel arguments"
1990 help
1991 The command-line arguments provided by the boot loader will be
1992 appended to the the device tree bootargs property.
1993
1994endchoice
1995
Linus Torvalds1da177e2005-04-16 15:20:36 -07001996config CMDLINE
1997 string "Default kernel command string"
1998 default ""
1999 help
2000 On some architectures (EBSA110 and CATS), there is currently no way
2001 for the boot loader to pass arguments to the kernel. For these
2002 architectures, you should supply some command-line options at build
2003 time by entering them here. As a minimum, you should specify the
2004 memory size and the root device (e.g., mem=64M root=/dev/nfs).
2005
Victor Boivie4394c122011-05-04 17:07:55 +01002006choice
2007 prompt "Kernel command line type" if CMDLINE != ""
2008 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002009 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01002010
2011config CMDLINE_FROM_BOOTLOADER
2012 bool "Use bootloader kernel arguments if available"
2013 help
2014 Uses the command-line options passed by the boot loader. If
2015 the boot loader doesn't provide any, the default kernel command
2016 string provided in CMDLINE will be used.
2017
2018config CMDLINE_EXTEND
2019 bool "Extend bootloader kernel arguments"
2020 help
2021 The command-line arguments provided by the boot loader will be
2022 appended to the default kernel command string.
2023
Alexander Holler92d20402010-02-16 19:04:53 +01002024config CMDLINE_FORCE
2025 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01002026 help
2027 Always use the default kernel command string, even if the boot
2028 loader passes other arguments to the kernel.
2029 This is useful if you cannot or don't want to change the
2030 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01002031endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002032
Linus Torvalds1da177e2005-04-16 15:20:36 -07002033config XIP_KERNEL
2034 bool "Kernel Execute-In-Place from ROM"
Rob Herring387798b2012-09-06 13:41:12 -05002035 depends on !ZBOOT_ROM && !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07002036 help
2037 Execute-In-Place allows the kernel to run from non-volatile storage
2038 directly addressable by the CPU, such as NOR flash. This saves RAM
2039 space since the text section of the kernel is not loaded from flash
2040 to RAM. Read-write sections, such as the data section and stack,
2041 are still copied to RAM. The XIP kernel is not compressed since
2042 it has to run directly from flash, so it will take more space to
2043 store it. The flash address used to link the kernel object files,
2044 and for storing it, is configuration dependent. Therefore, if you
2045 say Y here, you must know the proper physical address where to
2046 store the kernel image depending on your own flash memory usage.
2047
2048 Also note that the make target becomes "make xipImage" rather than
2049 "make zImage" or "make Image". The final kernel binary to put in
2050 ROM memory will be arch/arm/boot/xipImage.
2051
2052 If unsure, say N.
2053
2054config XIP_PHYS_ADDR
2055 hex "XIP Kernel Physical Location"
2056 depends on XIP_KERNEL
2057 default "0x00080000"
2058 help
2059 This is the physical address in your flash memory the kernel will
2060 be linked for and stored to. This address is dependent on your
2061 own flash usage.
2062
Richard Purdiec587e4a2007-02-06 21:29:00 +01002063config KEXEC
2064 bool "Kexec system call (EXPERIMENTAL)"
Will Deacon02b73e22011-06-06 15:49:23 +01002065 depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002066 help
2067 kexec is a system call that implements the ability to shutdown your
2068 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002069 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002070 you can start any kernel with it, not just Linux.
2071
2072 It is an ongoing process to be certain the hardware in a machine
2073 is properly shutdown, so do not be surprised if this code does not
2074 initially work for you. It may help to enable device hotplugging
2075 support.
2076
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002077config ATAGS_PROC
2078 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002079 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01002080 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002081 help
2082 Should the atags used to boot the kernel be exported in an "atags"
2083 file in procfs. Useful with kexec.
2084
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002085config CRASH_DUMP
2086 bool "Build kdump crash kernel (EXPERIMENTAL)"
2087 depends on EXPERIMENTAL
2088 help
2089 Generate crash dump after being started by kexec. This should
2090 be normally only set in special crash dump kernels which are
2091 loaded in the main kernel with kexec-tools into a specially
2092 reserved region and then later executed after a crash by
2093 kdump/kexec. The crash dump kernel must be compiled to a
2094 memory address not used by the main kernel
2095
2096 For more details see Documentation/kdump/kdump.txt
2097
Eric Miaoe69edc792010-07-05 15:56:50 +02002098config AUTO_ZRELADDR
2099 bool "Auto calculation of the decompressed kernel image address"
2100 depends on !ZBOOT_ROM && !ARCH_U300
2101 help
2102 ZRELADDR is the physical address where the decompressed kernel
2103 image will be placed. If AUTO_ZRELADDR is selected, the address
2104 will be determined at run-time by masking the current IP with
2105 0xf8000000. This assumes the zImage being placed in the first 128MB
2106 from start of memory.
2107
Linus Torvalds1da177e2005-04-16 15:20:36 -07002108endmenu
2109
Russell Kingac9d7ef2008-08-18 17:26:00 +01002110menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002111
Ben Dooks89c52ed2009-07-30 23:23:24 +01002112if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002113
2114source "drivers/cpufreq/Kconfig"
2115
Yong Shen64f102b2010-10-21 21:18:59 +08002116config CPU_FREQ_IMX
2117 tristate "CPUfreq driver for i.MX CPUs"
2118 depends on ARCH_MXC && CPU_FREQ
Arnd Bergmannf637c4c2012-08-16 10:40:40 +00002119 select CPU_FREQ_TABLE
Yong Shen64f102b2010-10-21 21:18:59 +08002120 help
2121 This enables the CPUfreq driver for i.MX CPUs.
2122
Linus Torvalds1da177e2005-04-16 15:20:36 -07002123config CPU_FREQ_SA1100
2124 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002125
2126config CPU_FREQ_SA1110
2127 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002128
2129config CPU_FREQ_INTEGRATOR
2130 tristate "CPUfreq driver for ARM Integrator CPUs"
2131 depends on ARCH_INTEGRATOR && CPU_FREQ
2132 default y
2133 help
2134 This enables the CPUfreq driver for ARM Integrator CPUs.
2135
2136 For details, take a look at <file:Documentation/cpu-freq>.
2137
2138 If in doubt, say Y.
2139
Russell King9e2697f2007-12-14 13:30:14 +00002140config CPU_FREQ_PXA
2141 bool
2142 depends on CPU_FREQ && ARCH_PXA && PXA25x
2143 default y
2144 select CPU_FREQ_DEFAULT_GOV_USERSPACE
Russell Kingb1b3f492012-10-06 17:12:25 +01002145 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002146
Ben Dooks9d56c022009-07-30 23:23:25 +01002147config CPU_FREQ_S3C
2148 bool
2149 help
2150 Internal configuration node for common cpufreq on Samsung SoC
2151
2152config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002153 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09002154 depends on ARCH_S3C24XX && CPU_FREQ && EXPERIMENTAL
Ben Dooks9d56c022009-07-30 23:23:25 +01002155 select CPU_FREQ_S3C
2156 help
2157 This enables the CPUfreq driver for the Samsung S3C24XX family
2158 of CPUs.
2159
2160 For details, take a look at <file:Documentation/cpu-freq>.
2161
2162 If in doubt, say N.
2163
2164config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002165 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002166 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2167 help
2168 Compile in support for changing the PLL frequency from the
2169 S3C24XX series CPUfreq driver. The PLL takes time to settle
2170 after a frequency change, so by default it is not enabled.
2171
2172 This also means that the PLL tables for the selected CPU(s) will
2173 be built which may increase the size of the kernel image.
2174
2175config CPU_FREQ_S3C24XX_DEBUG
2176 bool "Debug CPUfreq Samsung driver core"
2177 depends on CPU_FREQ_S3C24XX
2178 help
2179 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2180
2181config CPU_FREQ_S3C24XX_IODEBUG
2182 bool "Debug CPUfreq Samsung driver IO timing"
2183 depends on CPU_FREQ_S3C24XX
2184 help
2185 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2186
Ben Dookse6d197a2009-07-30 23:23:42 +01002187config CPU_FREQ_S3C24XX_DEBUGFS
2188 bool "Export debugfs for CPUFreq"
2189 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2190 help
2191 Export status information via debugfs.
2192
Linus Torvalds1da177e2005-04-16 15:20:36 -07002193endif
2194
Russell Kingac9d7ef2008-08-18 17:26:00 +01002195source "drivers/cpuidle/Kconfig"
2196
2197endmenu
2198
Linus Torvalds1da177e2005-04-16 15:20:36 -07002199menu "Floating point emulation"
2200
2201comment "At least one emulation must be selected"
2202
2203config FPE_NWFPE
2204 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002205 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002206 ---help---
2207 Say Y to include the NWFPE floating point emulator in the kernel.
2208 This is necessary to run most binaries. Linux does not currently
2209 support floating point hardware so you need to say Y here even if
2210 your machine has an FPA or floating point co-processor podule.
2211
2212 You may say N here if you are going to load the Acorn FPEmulator
2213 early in the bootup.
2214
2215config FPE_NWFPE_XP
2216 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002217 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002218 help
2219 Say Y to include 80-bit support in the kernel floating-point
2220 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2221 Note that gcc does not generate 80-bit operations by default,
2222 so in most cases this option only enlarges the size of the
2223 floating point emulator without any good reason.
2224
2225 You almost surely want to say N here.
2226
2227config FPE_FASTFPE
2228 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002229 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002230 ---help---
2231 Say Y here to include the FAST floating point emulator in the kernel.
2232 This is an experimental much faster emulator which now also has full
2233 precision for the mantissa. It does not support any exceptions.
2234 It is very simple, and approximately 3-6 times faster than NWFPE.
2235
2236 It should be sufficient for most programs. It may be not suitable
2237 for scientific calculations, but you have to check this for yourself.
2238 If you do not feel you need a faster FP emulation you should better
2239 choose NWFPE.
2240
2241config VFP
2242 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002243 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002244 help
2245 Say Y to include VFP support code in the kernel. This is needed
2246 if your hardware includes a VFP unit.
2247
2248 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2249 release notes and additional status information.
2250
2251 Say N if your target does not have VFP hardware.
2252
Catalin Marinas25ebee02007-09-25 15:22:24 +01002253config VFPv3
2254 bool
2255 depends on VFP
2256 default y if CPU_V7
2257
Catalin Marinasb5872db2008-01-10 19:16:17 +01002258config NEON
2259 bool "Advanced SIMD (NEON) Extension support"
2260 depends on VFPv3 && CPU_V7
2261 help
2262 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2263 Extension.
2264
Linus Torvalds1da177e2005-04-16 15:20:36 -07002265endmenu
2266
2267menu "Userspace binary formats"
2268
2269source "fs/Kconfig.binfmt"
2270
2271config ARTHUR
2272 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00002273 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002274 help
2275 Say Y here to include the kernel code necessary if you want to run
2276 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2277 experimental; if this sounds frightening, say N and sleep in peace.
2278 You can also say M here to compile this support as a module (which
2279 will be called arthur).
2280
2281endmenu
2282
2283menu "Power management options"
2284
Russell Kingeceab4a2005-11-15 11:31:41 +00002285source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002286
Johannes Bergf4cb5702007-12-08 02:14:00 +01002287config ARCH_SUSPEND_POSSIBLE
Stephen Warren4b1082c2012-09-05 09:58:27 -06002288 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002289 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
Chao Xie3f5d0812012-05-07 11:23:58 +08002290 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002291 def_bool y
2292
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002293config ARM_CPU_SUSPEND
2294 def_bool PM_SLEEP
2295
Linus Torvalds1da177e2005-04-16 15:20:36 -07002296endmenu
2297
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002298source "net/Kconfig"
2299
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002300source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002301
2302source "fs/Kconfig"
2303
Linus Torvalds1da177e2005-04-16 15:20:36 -07002304source "arch/arm/Kconfig.debug"
2305
2306source "security/Kconfig"
2307
2308source "crypto/Kconfig"
2309
2310source "lib/Kconfig"