blob: 7cce11a1849e81a5472ead9e6f81a1947bf8e10c [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
Russell Kingb1b3f492012-10-06 17:12:25 +01004 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
Catalin Marinas74634492012-07-30 14:41:09 -07005 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
Russell Kingb1b3f492012-10-06 17:12:25 +01006 select ARCH_HAVE_CUSTOM_GPIO_H
7 select ARCH_WANT_IPC_PARSE_VERSION
8 select CPU_PM if (SUSPEND || CPU_IDLE)
9 select DCACHE_WORD_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && !CPU_BIG_ENDIAN
10 select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI)
11 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
12 select GENERIC_IRQ_PROBE
13 select GENERIC_IRQ_SHOW
14 select GENERIC_KERNEL_THREAD
Linus Torvalds3d6ee362012-10-13 17:18:53 -070015 select GENERIC_KERNEL_EXECVE
Russell Kingb1b3f492012-10-06 17:12:25 +010016 select GENERIC_PCI_IOMAP
17 select GENERIC_SMP_IDLE_THREAD
18 select GENERIC_STRNCPY_FROM_USER
19 select GENERIC_STRNLEN_USER
20 select HARDIRQS_SW_RESEND
21 select HAVE_AOUT
Rabin Vincent09f05d82012-02-18 17:52:41 +010022 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
Jason Wessel5cbad0e2008-02-20 13:33:40 -060023 select HAVE_ARCH_KGDB
Wade Farnsworth0693bf62012-04-04 16:19:47 +010024 select HAVE_ARCH_TRACEHOOK
Russell Kingb1b3f492012-10-06 17:12:25 +010025 select HAVE_BPF_JIT
26 select HAVE_C_RECORDMCOUNT
27 select HAVE_DEBUG_KMEMLEAK
28 select HAVE_DMA_API_DEBUG
29 select HAVE_DMA_ATTRS
30 select HAVE_DMA_CONTIGUOUS if MMU
31 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
32 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
33 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
34 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
35 select HAVE_GENERIC_DMA_COHERENT
36 select HAVE_GENERIC_HARDIRQS
37 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
38 select HAVE_IDE if PCI || ISA || PCMCIA
39 select HAVE_IRQ_WORK
40 select HAVE_KERNEL_GZIP
41 select HAVE_KERNEL_LZMA
42 select HAVE_KERNEL_LZO
43 select HAVE_KERNEL_XZ
Jon Medhurst856bc352011-06-14 13:09:39 +010044 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080045 select HAVE_KRETPROBES if (HAVE_KPROBES)
Russell Kingb1b3f492012-10-06 17:12:25 +010046 select HAVE_MEMBLOCK
47 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jamie Iles7ada1892010-02-02 20:24:58 +010048 select HAVE_PERF_EVENTS
Will Deacone513f8b2010-06-25 12:24:53 +010049 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kingb1b3f492012-10-06 17:12:25 +010050 select HAVE_SYSCALL_TRACEPOINTS
Catalin Marinasaf1839e2012-10-08 16:28:08 -070051 select HAVE_UID16
Anna-Maria Gleixner3d92a712012-05-18 16:45:44 +000052 select KTIME_SCALAR
Russell Kingb1b3f492012-10-06 17:12:25 +010053 select PERF_USE_VMALLOC
54 select RTC_LIB
55 select SYS_SUPPORTS_APM_EMULATION
David Howells786d35d2012-09-28 14:31:03 +093056 select HAVE_MOD_ARCH_SPECIFIC if ARM_UNWIND
57 select MODULES_USE_ELF_REL
Linus Torvalds1da177e2005-04-16 15:20:36 -070058 help
59 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000060 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070061 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000062 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070063 Europe. There is an ARM Linux project with a web page at
64 <http://www.arm.linux.org.uk/>.
65
Russell King74facff2011-06-02 11:16:22 +010066config ARM_HAS_SG_CHAIN
67 bool
68
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020069config NEED_SG_DMA_LENGTH
70 bool
71
72config ARM_DMA_USE_IOMMU
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020073 bool
Russell Kingb1b3f492012-10-06 17:12:25 +010074 select ARM_HAS_SG_CHAIN
75 select NEED_SG_DMA_LENGTH
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020076
Russell King1a189b92008-04-13 21:41:55 +010077config HAVE_PWM
78 bool
79
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010080config MIGHT_HAVE_PCI
81 bool
82
Ralf Baechle75e71532007-02-09 17:08:58 +000083config SYS_SUPPORTS_APM_EMULATION
84 bool
85
David Brownell0a938b92007-03-05 00:30:18 -080086config GENERIC_GPIO
87 bool
David Brownell0a938b92007-03-05 00:30:18 -080088
Linus Walleijbc581772009-09-15 17:30:37 +010089config HAVE_TCM
90 bool
91 select GENERIC_ALLOCATOR
92
Russell Kinge119bff2010-01-10 17:23:29 +000093config HAVE_PROC_CPU
94 bool
95
Al Viro5ea81762007-02-11 15:41:31 +000096config NO_IOPORT
97 bool
Al Viro5ea81762007-02-11 15:41:31 +000098
Linus Torvalds1da177e2005-04-16 15:20:36 -070099config EISA
100 bool
101 ---help---
102 The Extended Industry Standard Architecture (EISA) bus was
103 developed as an open alternative to the IBM MicroChannel bus.
104
105 The EISA bus provided some of the features of the IBM MicroChannel
106 bus while maintaining backward compatibility with cards made for
107 the older ISA bus. The EISA bus saw limited use between 1988 and
108 1995 when it was made obsolete by the PCI bus.
109
110 Say Y here if you are building a kernel for an EISA-based machine.
111
112 Otherwise, say N.
113
114config SBUS
115 bool
116
Russell Kingf16fb1e2007-04-28 09:59:37 +0100117config STACKTRACE_SUPPORT
118 bool
119 default y
120
Nicolas Pitref76e9152008-04-24 01:31:46 -0400121config HAVE_LATENCYTOP_SUPPORT
122 bool
123 depends on !SMP
124 default y
125
Russell Kingf16fb1e2007-04-28 09:59:37 +0100126config LOCKDEP_SUPPORT
127 bool
128 default y
129
Russell King7ad1bcb2006-08-27 12:07:02 +0100130config TRACE_IRQFLAGS_SUPPORT
131 bool
132 default y
133
Linus Torvalds1da177e2005-04-16 15:20:36 -0700134config RWSEM_GENERIC_SPINLOCK
135 bool
136 default y
137
138config RWSEM_XCHGADD_ALGORITHM
139 bool
140
David Howellsf0d1b0b2006-12-08 02:37:49 -0800141config ARCH_HAS_ILOG2_U32
142 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800143
144config ARCH_HAS_ILOG2_U64
145 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800146
Ben Dooks89c52ed2009-07-30 23:23:24 +0100147config ARCH_HAS_CPUFREQ
148 bool
149 help
150 Internal node to signify that the ARCH has CPUFREQ support
151 and that the relevant menu configurations are displayed for
152 it.
153
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800154config GENERIC_HWEIGHT
155 bool
156 default y
157
Linus Torvalds1da177e2005-04-16 15:20:36 -0700158config GENERIC_CALIBRATE_DELAY
159 bool
160 default y
161
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100162config ARCH_MAY_HAVE_PC_FDC
163 bool
164
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800165config ZONE_DMA
166 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800167
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800168config NEED_DMA_MAP_STATE
169 def_bool y
170
Rob Herring58af4a22012-03-20 14:33:01 -0500171config ARCH_HAS_DMA_SET_COHERENT_MASK
172 bool
173
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174config GENERIC_ISA_DMA
175 bool
176
Linus Torvalds1da177e2005-04-16 15:20:36 -0700177config FIQ
178 bool
179
Rob Herring13a50452012-02-07 09:28:22 -0600180config NEED_RET_TO_USER
181 bool
182
Al Viro034d2f52005-12-19 16:27:59 -0500183config ARCH_MTD_XIP
184 bool
185
Hyok S. Choic760fc12006-03-27 15:18:50 +0100186config VECTORS_BASE
187 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900188 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100189 default DRAM_BASE if REMAP_VECTORS_TO_RAM
190 default 0x00000000
191 help
192 The base address of exception vectors.
193
Russell Kingdc21af92011-01-04 19:09:43 +0000194config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100195 bool "Patch physical to virtual translations at runtime" if EMBEDDED
196 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100197 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000198 depends on !ARCH_REALVIEW || !SPARSEMEM
199 help
Russell King111e9a52011-05-12 10:02:42 +0100200 Patch phys-to-virt and virt-to-phys translation functions at
201 boot and module load time according to the position of the
202 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000203
Russell King111e9a52011-05-12 10:02:42 +0100204 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100205 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000206
Russell Kingc1beced2011-08-10 10:23:45 +0100207 Only disable this option if you know that you do not require
208 this feature (eg, building a kernel for a single machine) and
209 you need to shrink the kernel to the minimal size.
210
Rob Herring01464222012-08-28 13:06:41 -0500211config NEED_MACH_GPIO_H
212 bool
213 help
214 Select this when mach/gpio.h is required to provide special
215 definitions for this platform. The need for mach/gpio.h should
216 be avoided when possible.
217
Rob Herringc334bc12012-03-04 22:03:33 -0600218config NEED_MACH_IO_H
219 bool
220 help
221 Select this when mach/io.h is required to provide special
222 definitions for this platform. The need for mach/io.h should
223 be avoided when possible.
224
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400225config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400226 bool
Russell King111e9a52011-05-12 10:02:42 +0100227 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400228 Select this when mach/memory.h is required to provide special
229 definitions for this platform. The need for mach/memory.h should
230 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400231
232config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100233 hex "Physical address of main memory" if MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400234 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre974c0722011-12-02 23:09:42 +0100235 default DRAM_BASE if !MMU
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400236 help
237 Please provide the physical address corresponding to the
238 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000239
Simon Glass87e040b2011-08-16 23:44:26 +0100240config GENERIC_BUG
241 def_bool y
242 depends on BUG
243
Linus Torvalds1da177e2005-04-16 15:20:36 -0700244source "init/Kconfig"
245
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700246source "kernel/Kconfig.freezer"
247
Linus Torvalds1da177e2005-04-16 15:20:36 -0700248menu "System Type"
249
Hyok S. Choi3c427972009-07-24 12:35:00 +0100250config MMU
251 bool "MMU-based Paged Memory Management Support"
252 default y
253 help
254 Select if you want MMU-based virtualised addressing space
255 support by paged memory management. If unsure, say 'Y'.
256
Russell Kingccf50e22010-03-15 19:03:06 +0000257#
258# The "ARM system type" choice list is ordered alphabetically by option
259# text. Please add new entries in the option alphabetic order.
260#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700261choice
262 prompt "ARM system type"
Rob Herring387798b2012-09-06 13:41:12 -0500263 default ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700264
Rob Herring387798b2012-09-06 13:41:12 -0500265config ARCH_MULTIPLATFORM
266 bool "Allow multiple platforms to be selected"
Russell Kingb1b3f492012-10-06 17:12:25 +0100267 depends on MMU
Rob Herring387798b2012-09-06 13:41:12 -0500268 select ARM_PATCH_PHYS_VIRT
269 select AUTO_ZRELADDR
Dinh Nguyen66314222012-07-18 16:07:18 -0600270 select COMMON_CLK
Rob Herring387798b2012-09-06 13:41:12 -0500271 select MULTI_IRQ_HANDLER
Dinh Nguyen66314222012-07-18 16:07:18 -0600272 select SPARSE_IRQ
273 select USE_OF
Dinh Nguyen66314222012-07-18 16:07:18 -0600274
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100275config ARCH_INTEGRATOR
276 bool "ARM Ltd. Integrator family"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100277 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100278 select ARM_AMBA
Linus Walleija6131632012-06-11 17:33:12 +0200279 select COMMON_CLK
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200280 select COMMON_CLK_VERSATILE
Russell Kingb1b3f492012-10-06 17:12:25 +0100281 select GENERIC_CLOCKEVENTS
Linus Walleij9904f792011-12-09 10:29:23 +0100282 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000283 select ICST
Russell Kingb1b3f492012-10-06 17:12:25 +0100284 select MULTI_IRQ_HANDLER
285 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000286 select PLAT_VERSATILE
Russell Kingc41b16f2011-01-19 15:32:15 +0000287 select PLAT_VERSATILE_FPGA_IRQ
Linus Walleij695436e2012-02-26 10:46:48 +0100288 select SPARSE_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100289 help
290 Support for ARM's Integrator platform.
291
292config ARCH_REALVIEW
293 bool "ARM Ltd. RealView family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100294 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100295 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100296 select ARM_TIMER_SP804
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200297 select COMMON_CLK
298 select COMMON_CLK_VERSATILE
Catalin Marinasae30cea2008-02-04 17:26:55 +0100299 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100300 select GPIO_PL061 if GPIOLIB
301 select ICST
302 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000303 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000304 select PLAT_VERSATILE_CLCD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100305 help
306 This enables support for ARM Ltd RealView boards.
307
308config ARCH_VERSATILE
309 bool "ARM Ltd. Versatile family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100310 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100311 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100312 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100313 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100314 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100315 select GENERIC_CLOCKEVENTS
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900316 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000317 select ICST
Russell Kingf4b8b312010-01-14 12:48:06 +0000318 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000319 select PLAT_VERSATILE_CLCD
Russell Kingb1b3f492012-10-06 17:12:25 +0100320 select PLAT_VERSATILE_CLOCK
Russell Kingc41b16f2011-01-19 15:32:15 +0000321 select PLAT_VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100322 help
323 This enables support for ARM Ltd Versatile board.
324
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100325config ARCH_AT91
326 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100327 select ARCH_REQUIRE_GPIOLIB
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100328 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100329 select HAVE_CLK
Nicolas Ferree2615012011-11-22 22:26:09 +0100330 select IRQ_DOMAIN
Rob Herring01464222012-08-28 13:06:41 -0500331 select NEED_MACH_GPIO_H
Rob Herring1ac02d72012-04-04 17:48:04 -0500332 select NEED_MACH_IO_H if PCCARD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100333 help
Nicolas Ferre929e9942012-03-15 12:21:12 +0100334 This enables support for systems based on Atmel
335 AT91RM9200 and AT91SAM9* processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100336
Simon Arlottec9653b2012-05-26 01:04:43 -0600337config ARCH_BCM2835
338 bool "Broadcom BCM2835 family"
Stephen Warren805504a2012-09-27 21:54:21 -0600339 select ARCH_REQUIRE_GPIOLIB
Simon Arlottec9653b2012-05-26 01:04:43 -0600340 select ARM_AMBA
341 select ARM_ERRATA_411920
342 select ARM_TIMER_SP804
343 select CLKDEV_LOOKUP
344 select COMMON_CLK
345 select CPU_V6
346 select GENERIC_CLOCKEVENTS
Stephen Warren805504a2012-09-27 21:54:21 -0600347 select GENERIC_GPIO
Simon Arlottec9653b2012-05-26 01:04:43 -0600348 select MULTI_IRQ_HANDLER
Stephen Warren805504a2012-09-27 21:54:21 -0600349 select PINCTRL
350 select PINCTRL_BCM2835
Simon Arlottec9653b2012-05-26 01:04:43 -0600351 select SPARSE_IRQ
352 select USE_OF
353 help
354 This enables support for the Broadcom BCM2835 SoC. This SoC is
355 use in the Raspberry Pi, and Roku 2 devices.
356
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300357config ARCH_CNS3XXX
358 bool "Cavium Networks CNS3XXX family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100359 select ARM_GIC
Imre Kaloz00d27112011-07-07 12:19:09 +0200360 select CPU_V6K
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300361 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000362 select MIGHT_HAVE_CACHE_L2X0
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100363 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400364 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300365 help
366 Support for Cavium Networks CNS3XXX platform.
367
Russell King93e22562012-10-12 14:20:52 +0100368config ARCH_CLPS711X
369 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
370 select ARCH_USES_GETTIMEOFFSET
371 select CLKDEV_LOOKUP
372 select COMMON_CLK
373 select CPU_ARM720T
374 select NEED_MACH_MEMORY_H
375 help
376 Support for Cirrus Logic 711x/721x/731x based boards.
377
Russell King788c9702009-04-26 14:21:59 +0100378config ARCH_GEMINI
379 bool "Cortina Systems Gemini"
Russell King788c9702009-04-26 14:21:59 +0100380 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000381 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100382 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100383 help
384 Support for the Cortina Systems Gemini family SoCs
385
Barry Song156a0992012-08-23 13:41:58 +0800386config ARCH_SIRF
387 bool "CSR SiRF"
Arnd Bergmannf6387092012-07-04 14:33:01 +0000388 select ARCH_REQUIRE_GPIOLIB
Binghua Duan198678b2012-08-20 06:42:36 +0000389 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100390 select GENERIC_CLOCKEVENTS
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200391 select GENERIC_IRQ_CHIP
Dave Martince5ea9f2011-11-29 15:56:19 +0000392 select MIGHT_HAVE_CACHE_L2X0
Russell Kingb1b3f492012-10-06 17:12:25 +0100393 select NO_IOPORT
Barry Songcbd8d842012-05-15 10:35:46 +0800394 select PINCTRL
395 select PINCTRL_SIRF
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200396 select USE_OF
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200397 help
Barry Song156a0992012-08-23 13:41:58 +0800398 Support for CSR SiRFprimaII/Marco/Polo platforms
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200399
Linus Torvalds1da177e2005-04-16 15:20:36 -0700400config ARCH_EBSA110
401 bool "EBSA-110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100402 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000403 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100404 select ISA
Rob Herringc334bc12012-03-04 22:03:33 -0600405 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400406 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100407 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700408 help
409 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000410 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700411 Ethernet interface, two PCMCIA sockets, two serial ports and a
412 parallel port.
413
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000414config ARCH_EP93XX
415 bool "EP93xx-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100416 select ARCH_HAS_HOLES_MEMORYMODEL
417 select ARCH_REQUIRE_GPIOLIB
418 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000419 select ARM_AMBA
420 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100421 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100422 select CPU_ARM920T
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100423 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000424 help
425 This enables support for the Cirrus EP93xx series of CPUs.
426
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427config ARCH_FOOTBRIDGE
428 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000429 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700430 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000431 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200432 select HAVE_IDE
Rob Herring8ef6e622012-03-01 20:48:12 -0600433 select NEED_MACH_IO_H if !MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400434 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000435 help
436 Support for systems based on the DC21285 companion chip
437 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700438
Russell King788c9702009-04-26 14:21:59 +0100439config ARCH_MXC
440 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100441 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100442 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100443 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100444 select GENERIC_CLOCKEVENTS
Shawn Guo8b6c44f2011-06-07 13:59:14 +0800445 select GENERIC_IRQ_CHIP
Sascha Hauerffa2ea32011-09-20 14:31:24 +0200446 select MULTI_IRQ_HANDLER
Shawn Guo8842a9e2012-06-14 11:16:14 +0800447 select SPARSE_IRQ
Uwe Kleine-König3e62af82012-07-06 09:47:20 +0200448 select USE_OF
Russell King788c9702009-04-26 14:21:59 +0100449 help
450 Support for Freescale MXC/iMX-based family of processors
451
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800452config ARCH_MXS
453 bool "Freescale MXS-based"
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800454 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100455 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100456 select CLKSRC_MMIO
Shawn Guo26646812012-04-29 00:02:39 +0800457 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100458 select GENERIC_CLOCKEVENTS
Shawn Guo6abda3e2011-12-20 16:12:34 +0800459 select HAVE_CLK_PREPARE
Shawn Guo4e0a1b82012-08-20 10:14:56 +0800460 select MULTI_IRQ_HANDLER
Shawn Guoa0f5e362012-05-06 23:13:13 +0800461 select PINCTRL
Shawn Guoc2668202012-08-20 21:52:12 +0800462 select SPARSE_IRQ
Shawn Guo6c4d4ef2012-05-04 21:42:41 +0800463 select USE_OF
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800464 help
465 Support for Freescale MXS-based family of processors
466
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100467config ARCH_NETX
468 bool "Hilscher NetX based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100469 select ARM_VIC
Russell King234b6ced2011-05-08 14:09:47 +0100470 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000471 select CPU_ARM926T
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100472 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000473 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100474 This enables support for systems based on the Hilscher NetX Soc
475
476config ARCH_H720X
477 bool "Hynix HMS720x-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100478 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000479 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100480 select ISA_DMA_API
481 help
482 This enables support for systems based on the Hynix HMS720x
483
Russell King3b938be2007-05-12 11:25:44 +0100484config ARCH_IOP13XX
485 bool "IOP13xx-based"
486 depends on MMU
Russell King3b938be2007-05-12 11:25:44 +0100487 select ARCH_SUPPORTS_MSI
Russell Kingb1b3f492012-10-06 17:12:25 +0100488 select CPU_XSC3
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400489 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600490 select NEED_RET_TO_USER
Russell Kingb1b3f492012-10-06 17:12:25 +0100491 select PCI
492 select PLAT_IOP
493 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100494 help
495 Support for Intel's IOP13XX (XScale) family of processors.
496
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100497config ARCH_IOP32X
498 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100499 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100500 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000501 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500502 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600503 select NEED_RET_TO_USER
Russell Kingf7e68bb2005-05-05 14:49:01 +0100504 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100505 select PLAT_IOP
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000506 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100507 Support for Intel's 80219 and IOP32X (XScale) family of
508 processors.
509
510config ARCH_IOP33X
511 bool "IOP33x-based"
512 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100513 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000514 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500515 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600516 select NEED_RET_TO_USER
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100517 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100518 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100519 help
520 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700521
Russell King3b938be2007-05-12 11:25:44 +0100522config ARCH_IXP4XX
523 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100524 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500525 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell Kingb1b3f492012-10-06 17:12:25 +0100526 select ARCH_REQUIRE_GPIOLIB
Russell King234b6ced2011-05-08 14:09:47 +0100527 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000528 select CPU_XSCALE
Russell Kingb1b3f492012-10-06 17:12:25 +0100529 select DMABOUNCE if PCI
Russell King3b938be2007-05-12 11:25:44 +0100530 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100531 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600532 select NEED_MACH_IO_H
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100533 help
Russell King3b938be2007-05-12 11:25:44 +0100534 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100535
Saeed Bisharaedabd382009-08-06 15:12:43 +0300536config ARCH_DOVE
537 bool "Marvell Dove"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300538 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100539 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300540 select GENERIC_CLOCKEVENTS
Russell King0f81bd42012-09-09 20:34:13 +0100541 select MIGHT_HAVE_PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200542 select PLAT_ORION_LEGACY
Russell King0f81bd42012-09-09 20:34:13 +0100543 select USB_ARCH_HAS_EHCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300544 help
545 Support for the Marvell Dove SoC 88AP510
546
Saeed Bishara651c74c2008-06-22 22:45:06 +0200547config ARCH_KIRKWOOD
548 bool "Marvell Kirkwood"
Erik Benadaa8865652009-05-28 17:08:55 -0700549 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100550 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200551 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100552 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200553 select PLAT_ORION_LEGACY
Saeed Bishara651c74c2008-06-22 22:45:06 +0200554 help
555 Support for the following Marvell Kirkwood series SoCs:
556 88F6180, 88F6192 and 88F6281.
557
Russell King788c9702009-04-26 14:21:59 +0100558config ARCH_MV78XX0
559 bool "Marvell MV78xx0"
Erik Benadaa8865652009-05-28 17:08:55 -0700560 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100561 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100562 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100563 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200564 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100565 help
566 Support for the following Marvell MV78xx0 series SoCs:
567 MV781x0, MV782x0.
568
569config ARCH_ORION5X
570 bool "Marvell Orion"
571 depends on MMU
Erik Benadaa8865652009-05-28 17:08:55 -0700572 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100573 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100574 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100575 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200576 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100577 help
578 Support for the following Marvell Orion 5x series SoCs:
579 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
580 Orion-2 (5281), Orion-1-90 (6183).
581
582config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500583 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100584 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100585 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100586 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100587 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100588 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800589 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800590 select IRQ_DOMAIN
Russell Kingb1b3f492012-10-06 17:12:25 +0100591 select NEED_MACH_GPIO_H
Russell King788c9702009-04-26 14:21:59 +0100592 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400593 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100594 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500595 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100596
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100597config ARCH_KS8695
598 bool "Micrel/Kendin KS8695"
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100599 select ARCH_REQUIRE_GPIOLIB
Linus Walleijc7e783d2012-08-29 20:27:22 +0200600 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100601 select CPU_ARM922T
Linus Walleijc7e783d2012-08-29 20:27:22 +0200602 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100603 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100604 help
605 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
606 System-on-Chip devices.
607
Russell King788c9702009-04-26 14:21:59 +0100608config ARCH_W90X900
609 bool "Nuvoton W90X900 CPU"
wanzongshunc52d3d62009-06-10 15:49:32 +0100610 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100611 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100612 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100613 select CPU_ARM926T
wanzongshun58b53692009-08-14 15:36:44 +0100614 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200615 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100616 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
617 At present, the w90x900 has been renamed nuc900, regarding
618 the ARM series product line, you can login the following
619 link address to know more.
620
621 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
622 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400623
Russell King93e22562012-10-12 14:20:52 +0100624config ARCH_LPC32XX
625 bool "NXP LPC32XX"
626 select ARCH_REQUIRE_GPIOLIB
627 select ARM_AMBA
Russell King40737232011-01-06 22:32:52 +0000628 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100629 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100630 select CPU_ARM926T
631 select GENERIC_CLOCKEVENTS
632 select HAVE_IDE
633 select HAVE_PWM
634 select USB_ARCH_HAS_OHCI
635 select USE_OF
636 help
637 Support for the NXP LPC32XX family of processors
638
wanzongshuna62e9032009-12-31 15:06:05 +0100639config ARCH_TEGRA
640 bool "NVIDIA Tegra"
Russell Kingb1b3f492012-10-06 17:12:25 +0100641 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800642 select CLKDEV_LOOKUP
643 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100644 select COMMON_CLK
Erik Gillingc5f80062010-01-21 16:53:02 -0800645 select GENERIC_CLOCKEVENTS
646 select GENERIC_GPIO
647 select HAVE_CLK
Dave Martin3b556582011-12-07 15:38:04 +0000648 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000649 select MIGHT_HAVE_CACHE_L2X0
Stephen Warren2c95b7e2012-05-21 15:07:19 -0600650 select USE_OF
Erik Gillingc5f80062010-01-21 16:53:02 -0800651 help
652 This enables support for NVIDIA Tegra based systems (Tegra APX,
653 Tegra 6xx and Tegra 2 series).
654
Linus Torvalds1da177e2005-04-16 15:20:36 -0700655config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700656 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100657 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100658 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100659 select ARCH_MTD_XIP
660 select ARCH_REQUIRE_GPIOLIB
661 select ARM_CPU_SUSPEND if PM
662 select AUTO_ZRELADDR
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100663 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100664 select CLKSRC_MMIO
Eric Miao981d0f32007-07-24 01:22:43 +0100665 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800666 select GPIO_PXA
Russell Kingb1b3f492012-10-06 17:12:25 +0100667 select HAVE_IDE
668 select MULTI_IRQ_HANDLER
669 select NEED_MACH_GPIO_H
Eric Miaobd5ce432009-01-20 12:06:01 +0800670 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800671 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000672 help
eric miao2c8086a2007-09-11 19:13:17 -0700673 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700674
Russell King788c9702009-04-26 14:21:59 +0100675config ARCH_MSM
676 bool "Qualcomm MSM"
Pavel Machek923a0812010-06-02 11:11:12 -0700677 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800678 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100679 select GENERIC_CLOCKEVENTS
680 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800681 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800682 Support for Qualcomm MSM/QSD based systems. This runs on the
683 apps processor of the MSM/QSD and depends on a shared memory
684 interface to the modem processor which runs the baseband
685 stack and controls some vital subsystems
686 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800687
Magnus Dammc793c1b2010-02-05 11:14:49 +0000688config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900689 bool "Renesas SH-Mobile / R-Mobile"
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900690 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100691 select GENERIC_CLOCKEVENTS
692 select HAVE_CLK
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900693 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000694 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000695 select MIGHT_HAVE_CACHE_L2X0
Magnus Damm60f14352010-12-28 08:26:52 +0000696 select MULTI_IRQ_HANDLER
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400697 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100698 select NO_IOPORT
699 select PM_GENERIC_DOMAINS if PM
700 select SPARSE_IRQ
Magnus Dammc793c1b2010-02-05 11:14:49 +0000701 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900702 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000703
Linus Torvalds1da177e2005-04-16 15:20:36 -0700704config ARCH_RPC
705 bool "RiscPC"
706 select ARCH_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100707 select ARCH_MAY_HAVE_PC_FDC
Russell King07f841b2008-10-01 17:11:06 +0100708 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000709 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100710 select FIQ
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200711 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100712 select HAVE_PATA_PLATFORM
713 select ISA_DMA_API
Rob Herringc334bc12012-03-04 22:03:33 -0600714 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400715 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100716 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700717 help
718 On the Acorn Risc-PC, Linux can support the internal IDE disk and
719 CD-ROM interface, serial and parallel port, and the floppy drive.
720
721config ARCH_SA1100
722 bool "SA1100-based"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100723 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100724 select ARCH_MTD_XIP
Michael Buesch7444a722008-07-25 01:46:11 -0700725 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100726 select ARCH_SPARSEMEM_ENABLE
727 select CLKDEV_LOOKUP
728 select CLKSRC_MMIO
729 select CPU_FREQ
730 select CPU_SA1100
731 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200732 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100733 select ISA
Rob Herring01464222012-08-28 13:06:41 -0500734 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400735 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100736 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000737 help
738 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700739
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900740config ARCH_S3C24XX
741 bool "Samsung S3C24XX SoCs"
Ben Dooks9d56c022009-07-30 23:23:25 +0100742 select ARCH_HAS_CPUFREQ
John Stultz5cfc8ee2010-03-24 00:22:36 +0000743 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100744 select CLKDEV_LOOKUP
745 select GENERIC_GPIO
746 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900747 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900748 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100749 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500750 select NEED_MACH_GPIO_H
Rob Herringc334bc12012-03-04 22:03:33 -0600751 select NEED_MACH_IO_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700752 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900753 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
754 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
755 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
756 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900757
Ben Dooksa08ab632008-10-21 14:06:39 +0100758config ARCH_S3C64XX
759 bool "Samsung S3C64XX"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100760 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900761 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100762 select ARCH_USES_GETTIMEOFFSET
763 select ARM_VIC
764 select CLKDEV_LOOKUP
765 select CPU_V6
766 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900767 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900768 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100769 select HAVE_TCM
Rob Herring01464222012-08-28 13:06:41 -0500770 select NEED_MACH_GPIO_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100771 select NO_IOPORT
772 select PLAT_SAMSUNG
773 select S3C_DEV_NAND
774 select S3C_GPIO_TRACK
775 select SAMSUNG_CLKSRC
776 select SAMSUNG_GPIOLIB_4BIT
777 select SAMSUNG_IRQ_VIC_TIMER
778 select USB_ARCH_HAS_OHCI
Ben Dooksa08ab632008-10-21 14:06:39 +0100779 help
780 Samsung S3C64XX series based systems
781
Kukjin Kim49b7a492010-09-07 15:47:18 +0900782config ARCH_S5P64X0
783 bool "Samsung S5P6440 S5P6450"
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900784 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900785 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100786 select CPU_V6
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900787 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100788 select GENERIC_GPIO
789 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900790 select HAVE_S3C2410_I2C if I2C
Russell Kingb1b3f492012-10-06 17:12:25 +0100791 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim754961a2010-11-13 16:11:46 +0900792 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500793 select NEED_MACH_GPIO_H
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900794 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900795 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
796 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900797
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200798config ARCH_S5PC100
799 bool "Samsung S5PC100"
Russell Kingb1b3f492012-10-06 17:12:25 +0100800 select ARCH_USES_GETTIMEOFFSET
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900801 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900802 select CPU_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100803 select GENERIC_GPIO
804 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900805 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900806 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100807 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500808 select NEED_MACH_GPIO_H
Byungho Min5a7652f2009-06-23 21:39:42 +0900809 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200810 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900811
Kukjin Kim170f4e42010-02-24 16:40:44 +0900812config ARCH_S5PV210
813 bool "Samsung S5PV210/S5PC110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100814 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900815 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100816 select ARCH_SPARSEMEM_ENABLE
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900817 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900818 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100819 select CPU_V7
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900820 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100821 select GENERIC_GPIO
822 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900823 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900824 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100825 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500826 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400827 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900828 help
829 Samsung S5PV210/S5PC110 series based systems
830
Kukjin Kim83014572011-11-06 13:54:56 +0900831config ARCH_EXYNOS
Russell King93e22562012-10-12 14:20:52 +0100832 bool "Samsung EXYNOS"
Russell Kingb1b3f492012-10-06 17:12:25 +0100833 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900834 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100835 select ARCH_SPARSEMEM_ENABLE
836 select CLKDEV_LOOKUP
837 select CPU_V7
838 select GENERIC_CLOCKEVENTS
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900839 select GENERIC_GPIO
840 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900841 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900842 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100843 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500844 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400845 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900846 help
Kukjin Kim83014572011-11-06 13:54:56 +0900847 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900848
Linus Torvalds1da177e2005-04-16 15:20:36 -0700849config ARCH_SHARK
850 bool "Shark"
Russell Kingb1b3f492012-10-06 17:12:25 +0100851 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000852 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100853 select ISA
854 select ISA_DMA
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400855 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100856 select PCI
857 select ZONE_DMA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000858 help
859 Support for the StrongARM based Digital DNARD machine, also known
860 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700861
Linus Walleijd98aac72009-04-27 10:21:46 +0100862config ARCH_U300
863 bool "ST-Ericsson U300 Series"
864 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100865 select ARCH_REQUIRE_GPIOLIB
Linus Walleijd98aac72009-04-27 10:21:46 +0100866 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200867 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100868 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100869 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100870 select CLKSRC_MMIO
Linus Walleij50667d62012-06-19 23:44:25 +0200871 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100872 select CPU_ARM926T
873 select GENERIC_CLOCKEVENTS
Linus Walleijd98aac72009-04-27 10:21:46 +0100874 select GENERIC_GPIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100875 select HAVE_TCM
Linus Walleija4fe2922012-08-13 13:49:45 +0200876 select SPARSE_IRQ
Linus Walleijd98aac72009-04-27 10:21:46 +0100877 help
878 Support for ST-Ericsson U300 series mobile platforms.
879
Russell Kingccf50e22010-03-15 19:03:06 +0000880config ARCH_U8500
881 bool "ST-Ericsson U8500 Series"
Arnd Bergmann67ae14f2012-02-25 12:48:49 -0700882 depends on MMU
Martin Persson7c1a70e2010-12-08 15:13:42 +0100883 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100884 select ARCH_REQUIRE_GPIOLIB
885 select ARM_AMBA
886 select CLKDEV_LOOKUP
887 select CPU_V7
888 select GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +0000889 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000890 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000891 help
892 Support for ST-Ericsson's Ux500 architecture
893
894config ARCH_NOMADIK
895 bool "STMicroelectronics Nomadik"
Russell Kingb1b3f492012-10-06 17:12:25 +0100896 select ARCH_REQUIRE_GPIOLIB
Russell Kingccf50e22010-03-15 19:03:06 +0000897 select ARM_AMBA
898 select ARM_VIC
Linus Walleij4a31bd22012-01-11 13:52:34 +0100899 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100900 select CPU_ARM926T
Russell Kingccf50e22010-03-15 19:03:06 +0000901 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100902 select MIGHT_HAVE_CACHE_L2X0
Arnd Bergmann0fa7be42012-05-15 11:24:34 +0000903 select PINCTRL
Linus Walleij2601ccf2012-08-10 00:43:40 +0200904 select PINCTRL_STN8815
Russell Kingccf50e22010-03-15 19:03:06 +0000905 help
906 Support for the Nomadik platform by ST-Ericsson
907
Russell King93e22562012-10-12 14:20:52 +0100908config PLAT_SPEAR
909 bool "ST SPEAr"
910 select ARCH_REQUIRE_GPIOLIB
911 select ARM_AMBA
912 select CLKDEV_LOOKUP
913 select CLKSRC_MMIO
914 select COMMON_CLK
915 select GENERIC_CLOCKEVENTS
916 select HAVE_CLK
917 help
918 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
919
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100920config ARCH_DAVINCI
921 bool "TI DaVinci"
Russell Kingb1b3f492012-10-06 17:12:25 +0100922 select ARCH_HAS_HOLES_MEMORYMODEL
David Brownelldce11152008-09-07 23:41:04 -0700923 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100924 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700925 select GENERIC_ALLOCATOR
Russell Kingb1b3f492012-10-06 17:12:25 +0100926 select GENERIC_CLOCKEVENTS
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100927 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100928 select HAVE_IDE
Rob Herring01464222012-08-28 13:06:41 -0500929 select NEED_MACH_GPIO_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100930 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100931 help
932 Support for TI's DaVinci platform.
933
Russell King3b938be2007-05-12 11:25:44 +0100934config ARCH_OMAP
935 bool "TI OMAP"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600936 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100937 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100938 select ARCH_HAS_HOLES_MEMORYMODEL
939 select ARCH_REQUIRE_GPIOLIB
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700940 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700941 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100942 select HAVE_CLK
Rob Herring01464222012-08-28 13:06:41 -0500943 select NEED_MACH_GPIO_H
Russell King3b938be2007-05-12 11:25:44 +0100944 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200945 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100946
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100947config ARCH_VT8500
948 bool "VIA/WonderMedia 85xx"
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100949 select ARCH_HAS_CPUFREQ
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100950 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200951 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100952 select COMMON_CLK
953 select CPU_ARM926T
954 select GENERIC_CLOCKEVENTS
955 select GENERIC_GPIO
956 select HAVE_CLK
957 select USE_OF
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100958 help
959 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +0800960
John Linnb85a3ef2011-06-20 11:47:27 -0600961config ARCH_ZYNQ
962 bool "Xilinx Zynq ARM Cortex A9 Platform"
Russell Kingb1b3f492012-10-06 17:12:25 +0100963 select ARM_AMBA
964 select ARM_GIC
965 select CLKDEV_LOOKUP
Binghua Duan02c981c2011-07-08 17:40:12 +0800966 select CPU_V7
Binghua Duan02c981c2011-07-08 17:40:12 +0800967 select GENERIC_CLOCKEVENTS
John Linnb85a3ef2011-06-20 11:47:27 -0600968 select ICST
Dave Martince5ea9f2011-11-29 15:56:19 +0000969 select MIGHT_HAVE_CACHE_L2X0
Binghua Duan02c981c2011-07-08 17:40:12 +0800970 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +0800971 help
John Linnb85a3ef2011-06-20 11:47:27 -0600972 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -0700973endchoice
974
Rob Herring387798b2012-09-06 13:41:12 -0500975menu "Multiple platform selection"
976 depends on ARCH_MULTIPLATFORM
977
978comment "CPU Core family selection"
979
980config ARCH_MULTI_V4
981 bool "ARMv4 based platforms (FA526, StrongARM)"
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_V4T
986 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
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_V5
991 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500992 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100993 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500994
995config ARCH_MULTI_V4_V5
996 bool
997
998config ARCH_MULTI_V6
999 bool "ARMv6 based platforms (ARM11, Scorpion, ...)"
Rob Herring387798b2012-09-06 13:41:12 -05001000 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +01001001 select CPU_V6
Rob Herring387798b2012-09-06 13:41:12 -05001002
1003config ARCH_MULTI_V7
1004 bool "ARMv7 based platforms (Cortex-A, PJ4, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -05001005 default y
1006 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +01001007 select ARCH_VEXPRESS
1008 select CPU_V7
Rob Herring387798b2012-09-06 13:41:12 -05001009
1010config ARCH_MULTI_V6_V7
1011 bool
1012
1013config ARCH_MULTI_CPU_AUTO
1014 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
1015 select ARCH_MULTI_V5
1016
1017endmenu
1018
Russell Kingccf50e22010-03-15 19:03:06 +00001019#
1020# This is sorted alphabetically by mach-* pathname. However, plat-*
1021# Kconfigs may be included either alphabetically (according to the
1022# plat- suffix) or along side the corresponding mach-* source.
1023#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +02001024source "arch/arm/mach-mvebu/Kconfig"
1025
Russell King95b8f202010-01-14 11:43:54 +00001026source "arch/arm/mach-at91/Kconfig"
1027
Linus Torvalds1da177e2005-04-16 15:20:36 -07001028source "arch/arm/mach-clps711x/Kconfig"
1029
Anton Vorontsovd94f9442010-03-25 17:12:41 +03001030source "arch/arm/mach-cns3xxx/Kconfig"
1031
Russell King95b8f202010-01-14 11:43:54 +00001032source "arch/arm/mach-davinci/Kconfig"
1033
1034source "arch/arm/mach-dove/Kconfig"
1035
Lennert Buytenheke7736d42006-03-20 17:10:13 +00001036source "arch/arm/mach-ep93xx/Kconfig"
1037
Linus Torvalds1da177e2005-04-16 15:20:36 -07001038source "arch/arm/mach-footbridge/Kconfig"
1039
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001040source "arch/arm/mach-gemini/Kconfig"
1041
Russell King95b8f202010-01-14 11:43:54 +00001042source "arch/arm/mach-h720x/Kconfig"
1043
Rob Herring387798b2012-09-06 13:41:12 -05001044source "arch/arm/mach-highbank/Kconfig"
1045
Linus Torvalds1da177e2005-04-16 15:20:36 -07001046source "arch/arm/mach-integrator/Kconfig"
1047
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001048source "arch/arm/mach-iop32x/Kconfig"
1049
1050source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001051
Dan Williams285f5fa2006-12-07 02:59:39 +01001052source "arch/arm/mach-iop13xx/Kconfig"
1053
Linus Torvalds1da177e2005-04-16 15:20:36 -07001054source "arch/arm/mach-ixp4xx/Kconfig"
1055
Russell King95b8f202010-01-14 11:43:54 +00001056source "arch/arm/mach-kirkwood/Kconfig"
1057
1058source "arch/arm/mach-ks8695/Kconfig"
1059
Russell King95b8f202010-01-14 11:43:54 +00001060source "arch/arm/mach-msm/Kconfig"
1061
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001062source "arch/arm/mach-mv78xx0/Kconfig"
1063
Russell King95b8f202010-01-14 11:43:54 +00001064source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001065
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001066source "arch/arm/mach-mxs/Kconfig"
1067
Russell King95b8f202010-01-14 11:43:54 +00001068source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001069
Russell King95b8f202010-01-14 11:43:54 +00001070source "arch/arm/mach-nomadik/Kconfig"
1071source "arch/arm/plat-nomadik/Kconfig"
1072
Tony Lindgrend48af152005-07-10 19:58:17 +01001073source "arch/arm/plat-omap/Kconfig"
1074
1075source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001076
Tony Lindgren1dbae812005-11-10 14:26:51 +00001077source "arch/arm/mach-omap2/Kconfig"
1078
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001079source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001080
Rob Herring387798b2012-09-06 13:41:12 -05001081source "arch/arm/mach-picoxcell/Kconfig"
1082
Russell King95b8f202010-01-14 11:43:54 +00001083source "arch/arm/mach-pxa/Kconfig"
1084source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001085
Russell King95b8f202010-01-14 11:43:54 +00001086source "arch/arm/mach-mmp/Kconfig"
1087
1088source "arch/arm/mach-realview/Kconfig"
1089
1090source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001091
Ben Dookscf383672009-11-10 00:14:58 +00001092source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001093source "arch/arm/plat-s3c24xx/Kconfig"
1094
Rob Herring387798b2012-09-06 13:41:12 -05001095source "arch/arm/mach-socfpga/Kconfig"
1096
viresh kumarcee37e52010-04-01 12:31:05 +01001097source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001098
Kukjin Kim85fd6d62012-02-06 09:38:19 +09001099source "arch/arm/mach-s3c24xx/Kconfig"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001100if ARCH_S3C24XX
Ben Dooksa21765a2007-02-11 18:31:01 +01001101source "arch/arm/mach-s3c2412/Kconfig"
1102source "arch/arm/mach-s3c2440/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001103endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001104
Ben Dooksa08ab632008-10-21 14:06:39 +01001105if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001106source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001107endif
1108
Kukjin Kim49b7a492010-09-07 15:47:18 +09001109source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001110
Byungho Min5a7652f2009-06-23 21:39:42 +09001111source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001112
Kukjin Kim170f4e42010-02-24 16:40:44 +09001113source "arch/arm/mach-s5pv210/Kconfig"
1114
Kukjin Kim83014572011-11-06 13:54:56 +09001115source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001116
Russell King882d01f2010-03-02 23:40:15 +00001117source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001118
Barry Song156a0992012-08-23 13:41:58 +08001119source "arch/arm/mach-prima2/Kconfig"
1120
Erik Gillingc5f80062010-01-21 16:53:02 -08001121source "arch/arm/mach-tegra/Kconfig"
1122
Russell King95b8f202010-01-14 11:43:54 +00001123source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001124
Russell King95b8f202010-01-14 11:43:54 +00001125source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001126
1127source "arch/arm/mach-versatile/Kconfig"
1128
Russell Kingceade892010-02-11 21:44:53 +00001129source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001130source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001131
wanzongshun7ec80dd2008-12-03 03:55:38 +01001132source "arch/arm/mach-w90x900/Kconfig"
1133
Linus Torvalds1da177e2005-04-16 15:20:36 -07001134# Definitions to make life easier
1135config ARCH_ACORN
1136 bool
1137
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001138config PLAT_IOP
1139 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001140 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001141
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001142config PLAT_ORION
1143 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001144 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +01001145 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001146 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +02001147 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001148
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +02001149config PLAT_ORION_LEGACY
1150 bool
1151 select PLAT_ORION
1152
Eric Miaobd5ce432009-01-20 12:06:01 +08001153config PLAT_PXA
1154 bool
1155
Russell Kingf4b8b312010-01-14 12:48:06 +00001156config PLAT_VERSATILE
1157 bool
1158
Russell Kinge3887712010-01-14 13:30:16 +00001159config ARM_TIMER_SP804
1160 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001161 select CLKSRC_MMIO
Rob Herringa7bf6162011-12-12 15:29:08 -06001162 select HAVE_SCHED_CLOCK
Russell Kinge3887712010-01-14 13:30:16 +00001163
Linus Torvalds1da177e2005-04-16 15:20:36 -07001164source arch/arm/mm/Kconfig
1165
Russell King958cab02011-12-11 10:04:00 +00001166config ARM_NR_BANKS
1167 int
1168 default 16 if ARCH_EP93XX
1169 default 8
1170
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001171config IWMMXT
1172 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001173 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1174 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001175 help
1176 Enable support for iWMMXt context switching at run time if
1177 running on a CPU that supports it.
1178
Linus Torvalds1da177e2005-04-16 15:20:36 -07001179config XSCALE_PMU
1180 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001181 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001182 default y
1183
eric miao52108642010-12-13 09:42:34 +01001184config MULTI_IRQ_HANDLER
1185 bool
1186 help
1187 Allow each machine to specify it's own IRQ handler at run time.
1188
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001189if !MMU
1190source "arch/arm/Kconfig-nommu"
1191endif
1192
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001193config ARM_ERRATA_326103
1194 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1195 depends on CPU_V6
1196 help
1197 Executing a SWP instruction to read-only memory does not set bit 11
1198 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1199 treat the access as a read, preventing a COW from occurring and
1200 causing the faulting task to livelock.
1201
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001202config ARM_ERRATA_411920
1203 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001204 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001205 help
1206 Invalidation of the Instruction Cache operation can
1207 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1208 It does not affect the MPCore. This option enables the ARM Ltd.
1209 recommended workaround.
1210
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001211config ARM_ERRATA_430973
1212 bool "ARM errata: Stale prediction on replaced interworking branch"
1213 depends on CPU_V7
1214 help
1215 This option enables the workaround for the 430973 Cortex-A8
1216 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1217 interworking branch is replaced with another code sequence at the
1218 same virtual address, whether due to self-modifying code or virtual
1219 to physical address re-mapping, Cortex-A8 does not recover from the
1220 stale interworking branch prediction. This results in Cortex-A8
1221 executing the new code sequence in the incorrect ARM or Thumb state.
1222 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1223 and also flushes the branch target cache at every context switch.
1224 Note that setting specific bits in the ACTLR register may not be
1225 available in non-secure mode.
1226
Catalin Marinas855c5512009-04-30 17:06:15 +01001227config ARM_ERRATA_458693
1228 bool "ARM errata: Processor deadlock when a false hazard is created"
1229 depends on CPU_V7
1230 help
1231 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1232 erratum. For very specific sequences of memory operations, it is
1233 possible for a hazard condition intended for a cache line to instead
1234 be incorrectly associated with a different cache line. This false
1235 hazard might then cause a processor deadlock. The workaround enables
1236 the L1 caching of the NEON accesses and disables the PLD instruction
1237 in the ACTLR register. Note that setting specific bits in the ACTLR
1238 register may not be available in non-secure mode.
1239
Catalin Marinas0516e462009-04-30 17:06:20 +01001240config ARM_ERRATA_460075
1241 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1242 depends on CPU_V7
1243 help
1244 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1245 erratum. Any asynchronous access to the L2 cache may encounter a
1246 situation in which recent store transactions to the L2 cache are lost
1247 and overwritten with stale memory contents from external memory. The
1248 workaround disables the write-allocate mode for the L2 cache via the
1249 ACTLR register. Note that setting specific bits in the ACTLR register
1250 may not be available in non-secure mode.
1251
Will Deacon9f050272010-09-14 09:51:43 +01001252config ARM_ERRATA_742230
1253 bool "ARM errata: DMB operation may be faulty"
1254 depends on CPU_V7 && SMP
1255 help
1256 This option enables the workaround for the 742230 Cortex-A9
1257 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1258 between two write operations may not ensure the correct visibility
1259 ordering of the two writes. This workaround sets a specific bit in
1260 the diagnostic register of the Cortex-A9 which causes the DMB
1261 instruction to behave as a DSB, ensuring the correct behaviour of
1262 the two writes.
1263
Will Deacona672e992010-09-14 09:53:02 +01001264config ARM_ERRATA_742231
1265 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1266 depends on CPU_V7 && SMP
1267 help
1268 This option enables the workaround for the 742231 Cortex-A9
1269 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1270 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1271 accessing some data located in the same cache line, may get corrupted
1272 data due to bad handling of the address hazard when the line gets
1273 replaced from one of the CPUs at the same time as another CPU is
1274 accessing it. This workaround sets specific bits in the diagnostic
1275 register of the Cortex-A9 which reduces the linefill issuing
1276 capabilities of the processor.
1277
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001278config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001279 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001280 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001281 help
1282 The PL310 L2 cache controller implements three types of Clean &
1283 Invalidate maintenance operations: by Physical Address
1284 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1285 They are architecturally defined to behave as the execution of a
1286 clean operation followed immediately by an invalidate operation,
1287 both performing to the same memory location. This functionality
1288 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001289 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001290
1291config ARM_ERRATA_720789
1292 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001293 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001294 help
1295 This option enables the workaround for the 720789 Cortex-A9 (prior to
1296 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1297 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1298 As a consequence of this erratum, some TLB entries which should be
1299 invalidated are not, resulting in an incoherency in the system page
1300 tables. The workaround changes the TLB flushing routines to invalidate
1301 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001302
Russell King1f0090a2011-03-16 23:35:25 +00001303config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001304 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001305 depends on CACHE_L2X0
1306 help
1307 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1308 operation (offset 0x7FC). This operation runs in background so that
1309 PL310 can handle normal accesses while it is in progress. Under very
1310 rare circumstances, due to this erratum, write data can be lost when
1311 PL310 treats a cacheable write transaction during a Clean &
1312 Invalidate by Way operation.
1313
Will Deacon475d92f2010-09-28 14:02:02 +01001314config ARM_ERRATA_743622
1315 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1316 depends on CPU_V7
1317 help
1318 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001319 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001320 optimisation in the Cortex-A9 Store Buffer may lead to data
1321 corruption. This workaround sets a specific bit in the diagnostic
1322 register of the Cortex-A9 which disables the Store Buffer
1323 optimisation, preventing the defect from occurring. This has no
1324 visible impact on the overall performance or power consumption of the
1325 processor.
1326
Will Deacon9a27c272011-02-18 16:36:35 +01001327config ARM_ERRATA_751472
1328 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001329 depends on CPU_V7
Will Deacon9a27c272011-02-18 16:36:35 +01001330 help
1331 This option enables the workaround for the 751472 Cortex-A9 (prior
1332 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1333 completion of a following broadcasted operation if the second
1334 operation is received by a CPU before the ICIALLUIS has completed,
1335 potentially leading to corrupted entries in the cache or TLB.
1336
Will Deaconfa0ce402011-11-14 17:24:57 +01001337config PL310_ERRATA_753970
1338 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001339 depends on CACHE_PL310
1340 help
1341 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1342
1343 Under some condition the effect of cache sync operation on
1344 the store buffer still remains when the operation completes.
1345 This means that the store buffer is always asked to drain and
1346 this prevents it from merging any further writes. The workaround
1347 is to replace the normal offset of cache sync operation (0x730)
1348 by another offset targeting an unmapped PL310 register 0x740.
1349 This has the same effect as the cache sync operation: store buffer
1350 drain and waiting for all buffers empty.
1351
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001352config ARM_ERRATA_754322
1353 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1354 depends on CPU_V7
1355 help
1356 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1357 r3p*) erratum. A speculative memory access may cause a page table walk
1358 which starts prior to an ASID switch but completes afterwards. This
1359 can populate the micro-TLB with a stale entry which may be hit with
1360 the new ASID. This workaround places two dsb instructions in the mm
1361 switching code so that no page table walks can cross the ASID switch.
1362
Will Deacon5dab26af2011-03-04 12:38:54 +01001363config ARM_ERRATA_754327
1364 bool "ARM errata: no automatic Store Buffer drain"
1365 depends on CPU_V7 && SMP
1366 help
1367 This option enables the workaround for the 754327 Cortex-A9 (prior to
1368 r2p0) erratum. The Store Buffer does not have any automatic draining
1369 mechanism and therefore a livelock may occur if an external agent
1370 continuously polls a memory location waiting to observe an update.
1371 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1372 written polling loops from denying visibility of updates to memory.
1373
Catalin Marinas145e10e2011-08-15 11:04:41 +01001374config ARM_ERRATA_364296
1375 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1376 depends on CPU_V6 && !SMP
1377 help
1378 This options enables the workaround for the 364296 ARM1136
1379 r0p2 erratum (possible cache data corruption with
1380 hit-under-miss enabled). It sets the undocumented bit 31 in
1381 the auxiliary control register and the FI bit in the control
1382 register, thus disabling hit-under-miss without putting the
1383 processor into full low interrupt latency mode. ARM11MPCore
1384 is not affected.
1385
Will Deaconf630c1b2011-09-15 11:45:15 +01001386config ARM_ERRATA_764369
1387 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1388 depends on CPU_V7 && SMP
1389 help
1390 This option enables the workaround for erratum 764369
1391 affecting Cortex-A9 MPCore with two or more processors (all
1392 current revisions). Under certain timing circumstances, a data
1393 cache line maintenance operation by MVA targeting an Inner
1394 Shareable memory region may fail to proceed up to either the
1395 Point of Coherency or to the Point of Unification of the
1396 system. This workaround adds a DSB instruction before the
1397 relevant cache maintenance functions and sets a specific bit
1398 in the diagnostic control register of the SCU.
1399
Will Deacon11ed0ba2011-11-14 17:24:58 +01001400config PL310_ERRATA_769419
1401 bool "PL310 errata: no automatic Store Buffer drain"
1402 depends on CACHE_L2X0
1403 help
1404 On revisions of the PL310 prior to r3p2, the Store Buffer does
1405 not automatically drain. This can cause normal, non-cacheable
1406 writes to be retained when the memory system is idle, leading
1407 to suboptimal I/O performance for drivers using coherent DMA.
1408 This option adds a write barrier to the cpu_idle loop so that,
1409 on systems with an outer cache, the store buffer is drained
1410 explicitly.
1411
Simon Horman7253b852012-09-28 02:12:45 +01001412config ARM_ERRATA_775420
1413 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1414 depends on CPU_V7
1415 help
1416 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1417 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1418 operation aborts with MMU exception, it might cause the processor
1419 to deadlock. This workaround puts DSB before executing ISB if
1420 an abort may occur on cache maintenance.
1421
Linus Torvalds1da177e2005-04-16 15:20:36 -07001422endmenu
1423
1424source "arch/arm/common/Kconfig"
1425
Linus Torvalds1da177e2005-04-16 15:20:36 -07001426menu "Bus support"
1427
1428config ARM_AMBA
1429 bool
1430
1431config ISA
1432 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001433 help
1434 Find out whether you have ISA slots on your motherboard. ISA is the
1435 name of a bus system, i.e. the way the CPU talks to the other stuff
1436 inside your box. Other bus systems are PCI, EISA, MicroChannel
1437 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1438 newer boards don't support it. If you have ISA, say Y, otherwise N.
1439
Russell King065909b2006-01-04 15:44:16 +00001440# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001441config ISA_DMA
1442 bool
Russell King065909b2006-01-04 15:44:16 +00001443 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001444
Russell King065909b2006-01-04 15:44:16 +00001445# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001446config ISA_DMA_API
1447 bool
Al Viro5cae8412005-05-04 05:39:22 +01001448
Linus Torvalds1da177e2005-04-16 15:20:36 -07001449config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001450 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001451 help
1452 Find out whether you have a PCI motherboard. PCI is the name of a
1453 bus system, i.e. the way the CPU talks to the other stuff inside
1454 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1455 VESA. If you have PCI, say Y, otherwise N.
1456
Anton Vorontsov52882172010-04-19 13:20:49 +01001457config PCI_DOMAINS
1458 bool
1459 depends on PCI
1460
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001461config PCI_NANOENGINE
1462 bool "BSE nanoEngine PCI support"
1463 depends on SA1100_NANOENGINE
1464 help
1465 Enable PCI on the BSE nanoEngine board.
1466
Matthew Wilcox36e23592007-07-10 10:54:40 -06001467config PCI_SYSCALL
1468 def_bool PCI
1469
Linus Torvalds1da177e2005-04-16 15:20:36 -07001470# Select the host bridge type
1471config PCI_HOST_VIA82C505
1472 bool
1473 depends on PCI && ARCH_SHARK
1474 default y
1475
Mike Rapoporta0113a92007-11-25 08:55:34 +01001476config PCI_HOST_ITE8152
1477 bool
1478 depends on PCI && MACH_ARMCORE
1479 default y
1480 select DMABOUNCE
1481
Linus Torvalds1da177e2005-04-16 15:20:36 -07001482source "drivers/pci/Kconfig"
1483
1484source "drivers/pcmcia/Kconfig"
1485
1486endmenu
1487
1488menu "Kernel Features"
1489
Dave Martin3b556582011-12-07 15:38:04 +00001490config HAVE_SMP
1491 bool
1492 help
1493 This option should be selected by machines which have an SMP-
1494 capable CPU.
1495
1496 The only effect of this option is to make the SMP-related
1497 options available to the user for configuration.
1498
Linus Torvalds1da177e2005-04-16 15:20:36 -07001499config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001500 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001501 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001502 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001503 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001504 depends on MMU
Daniel Walker89c3ded2010-11-22 12:35:41 -08001505 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Russell Kingb1b3f492012-10-06 17:12:25 +01001506 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001507 help
1508 This enables support for systems with more than one CPU. If you have
1509 a system with only one CPU, like most personal computers, say N. If
1510 you have a system with more than one CPU, say Y.
1511
1512 If you say N here, the kernel will run on single and multiprocessor
1513 machines, but will use only one CPU of a multiprocessor machine. If
1514 you say Y here, the kernel will run on many, but not all, single
1515 processor machines. On a single processor machine, the kernel will
1516 run faster if you say N here.
1517
Paul Bolle395cf962011-08-15 02:02:26 +02001518 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001519 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001520 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001521
1522 If you don't know what to do here, say N.
1523
Russell Kingf00ec482010-09-04 10:47:48 +01001524config SMP_ON_UP
1525 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1526 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001527 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001528 default y
1529 help
1530 SMP kernels contain instructions which fail on non-SMP processors.
1531 Enabling this option allows the kernel to modify itself to make
1532 these instructions safe. Disabling it allows about 1K of space
1533 savings.
1534
1535 If you don't know what to do here, say Y.
1536
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001537config ARM_CPU_TOPOLOGY
1538 bool "Support cpu topology definition"
1539 depends on SMP && CPU_V7
1540 default y
1541 help
1542 Support ARM cpu topology definition. The MPIDR register defines
1543 affinity between processors which is then used to describe the cpu
1544 topology of an ARM System.
1545
1546config SCHED_MC
1547 bool "Multi-core scheduler support"
1548 depends on ARM_CPU_TOPOLOGY
1549 help
1550 Multi-core scheduler support improves the CPU scheduler's decision
1551 making when dealing with multi-core CPU chips at a cost of slightly
1552 increased overhead in some places. If unsure say N here.
1553
1554config SCHED_SMT
1555 bool "SMT scheduler support"
1556 depends on ARM_CPU_TOPOLOGY
1557 help
1558 Improves the CPU scheduler's decision making when dealing with
1559 MultiThreading at a cost of slightly increased overhead in some
1560 places. If unsure say N here.
1561
Russell Kinga8cbcd92009-05-16 11:51:14 +01001562config HAVE_ARM_SCU
1563 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001564 help
1565 This option enables support for the ARM system coherency unit
1566
Marc Zyngier022c03a2012-01-11 17:25:17 +00001567config ARM_ARCH_TIMER
1568 bool "Architected timer support"
1569 depends on CPU_V7
1570 help
1571 This option enables support for the ARM architected timer
1572
Russell Kingf32f4ce2009-05-16 12:14:21 +01001573config HAVE_ARM_TWD
1574 bool
1575 depends on SMP
1576 help
1577 This options enables support for the ARM timer and watchdog unit
1578
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001579choice
1580 prompt "Memory split"
1581 default VMSPLIT_3G
1582 help
1583 Select the desired split between kernel and user memory.
1584
1585 If you are not absolutely sure what you are doing, leave this
1586 option alone!
1587
1588 config VMSPLIT_3G
1589 bool "3G/1G user/kernel split"
1590 config VMSPLIT_2G
1591 bool "2G/2G user/kernel split"
1592 config VMSPLIT_1G
1593 bool "1G/3G user/kernel split"
1594endchoice
1595
1596config PAGE_OFFSET
1597 hex
1598 default 0x40000000 if VMSPLIT_1G
1599 default 0x80000000 if VMSPLIT_2G
1600 default 0xC0000000
1601
Linus Torvalds1da177e2005-04-16 15:20:36 -07001602config NR_CPUS
1603 int "Maximum number of CPUs (2-32)"
1604 range 2 32
1605 depends on SMP
1606 default "4"
1607
Russell Kinga054a812005-11-02 22:24:33 +00001608config HOTPLUG_CPU
1609 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1610 depends on SMP && HOTPLUG && EXPERIMENTAL
1611 help
1612 Say Y here to experiment with turning CPUs off and on. CPUs
1613 can be controlled through /sys/devices/system/cpu.
1614
Russell King37ee16a2005-11-08 19:08:05 +00001615config LOCAL_TIMERS
1616 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001617 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001618 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001619 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001620 help
1621 Enable support for local timers on SMP platforms, rather then the
1622 legacy IPI broadcast method. Local timers allows the system
1623 accounting to be spread across the timer interval, preventing a
1624 "thundering herd" at every timer tick.
1625
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001626config ARCH_NR_GPIO
1627 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001628 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Philippe Langlais70227a42012-02-13 10:51:22 +01001629 default 355 if ARCH_U8500
Paul Parsons9a01ec32012-02-27 01:58:45 +00001630 default 264 if MACH_H4700
Tarun Kanti DebBarma39f47d92012-04-26 18:31:17 +05301631 default 512 if SOC_OMAP5
Tony Priske9a91de2012-08-03 21:00:06 +12001632 default 288 if ARCH_VT8500
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001633 default 0
1634 help
1635 Maximum number of GPIOs in the system.
1636
1637 If unsure, leave the default value.
1638
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001639source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001640
Russell Kingf8065812006-03-02 22:41:59 +00001641config HZ
1642 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001643 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001644 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001645 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001646 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001647 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001648 default 100
1649
Catalin Marinas16c79652009-07-24 12:33:02 +01001650config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001651 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001652 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001653 select AEABI
1654 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001655 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001656 help
1657 By enabling this option, the kernel will be compiled in
1658 Thumb-2 mode. A compiler/assembler that understand the unified
1659 ARM-Thumb syntax is needed.
1660
1661 If unsure, say N.
1662
Dave Martin6f685c52011-03-03 11:41:12 +01001663config THUMB2_AVOID_R_ARM_THM_JUMP11
1664 bool "Work around buggy Thumb-2 short branch relocations in gas"
1665 depends on THUMB2_KERNEL && MODULES
1666 default y
1667 help
1668 Various binutils versions can resolve Thumb-2 branches to
1669 locally-defined, preemptible global symbols as short-range "b.n"
1670 branch instructions.
1671
1672 This is a problem, because there's no guarantee the final
1673 destination of the symbol, or any candidate locations for a
1674 trampoline, are within range of the branch. For this reason, the
1675 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1676 relocation in modules at all, and it makes little sense to add
1677 support.
1678
1679 The symptom is that the kernel fails with an "unsupported
1680 relocation" error when loading some modules.
1681
1682 Until fixed tools are available, passing
1683 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1684 code which hits this problem, at the cost of a bit of extra runtime
1685 stack usage in some cases.
1686
1687 The problem is described in more detail at:
1688 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1689
1690 Only Thumb-2 kernels are affected.
1691
1692 Unless you are sure your tools don't have this problem, say Y.
1693
Catalin Marinas0becb082009-07-24 12:32:53 +01001694config ARM_ASM_UNIFIED
1695 bool
1696
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001697config AEABI
1698 bool "Use the ARM EABI to compile the kernel"
1699 help
1700 This option allows for the kernel to be compiled using the latest
1701 ARM ABI (aka EABI). This is only useful if you are using a user
1702 space environment that is also compiled with EABI.
1703
1704 Since there are major incompatibilities between the legacy ABI and
1705 EABI, especially with regard to structure member alignment, this
1706 option also changes the kernel syscall calling convention to
1707 disambiguate both ABIs and allow for backward compatibility support
1708 (selected with CONFIG_OABI_COMPAT).
1709
1710 To use this you need GCC version 4.0.0 or later.
1711
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001712config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001713 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001714 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001715 default y
1716 help
1717 This option preserves the old syscall interface along with the
1718 new (ARM EABI) one. It also provides a compatibility layer to
1719 intercept syscalls that have structure arguments which layout
1720 in memory differs between the legacy ABI and the new ARM EABI
1721 (only for non "thumb" binaries). This option adds a tiny
1722 overhead to all syscalls and produces a slightly larger kernel.
1723 If you know you'll be using only pure EABI user space then you
1724 can say N here. If this option is not selected and you attempt
1725 to execute a legacy ABI binary then the result will be
1726 UNPREDICTABLE (in fact it can be predicted that it won't work
1727 at all). If in doubt say Y.
1728
Mel Gormaneb335752009-05-13 17:34:48 +01001729config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001730 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001731
Russell King05944d72006-11-30 20:43:51 +00001732config ARCH_SPARSEMEM_ENABLE
1733 bool
1734
Russell King07a2f732008-10-01 21:39:58 +01001735config ARCH_SPARSEMEM_DEFAULT
1736 def_bool ARCH_SPARSEMEM_ENABLE
1737
Russell King05944d72006-11-30 20:43:51 +00001738config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001739 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001740
Will Deacon7b7bf492011-05-19 13:21:14 +01001741config HAVE_ARCH_PFN_VALID
1742 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1743
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001744config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001745 bool "High Memory Support"
1746 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001747 help
1748 The address space of ARM processors is only 4 Gigabytes large
1749 and it has to accommodate user address space, kernel address
1750 space as well as some memory mapped IO. That means that, if you
1751 have a large amount of physical memory and/or IO, not all of the
1752 memory can be "permanently mapped" by the kernel. The physical
1753 memory that is not permanently mapped is called "high memory".
1754
1755 Depending on the selected kernel/user memory split, minimum
1756 vmalloc space and actual amount of RAM, you may not need this
1757 option which should result in a slightly faster kernel.
1758
1759 If unsure, say n.
1760
Russell King65cec8e2009-08-17 20:02:06 +01001761config HIGHPTE
1762 bool "Allocate 2nd-level pagetables from highmem"
1763 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001764
Jamie Iles1b8873a2010-02-02 20:25:44 +01001765config HW_PERF_EVENTS
1766 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001767 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001768 default y
1769 help
1770 Enable hardware performance counter support for perf events. If
1771 disabled, perf events will use software events only.
1772
Dave Hansen3f22ab22005-06-23 00:07:43 -07001773source "mm/Kconfig"
1774
Magnus Dammc1b2d972010-07-05 10:00:11 +01001775config FORCE_MAX_ZONEORDER
1776 int "Maximum zone order" if ARCH_SHMOBILE
1777 range 11 64 if ARCH_SHMOBILE
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001778 default "12" if SOC_AM33XX
Magnus Dammc1b2d972010-07-05 10:00:11 +01001779 default "9" if SA1111
1780 default "11"
1781 help
1782 The kernel memory allocator divides physically contiguous memory
1783 blocks into "zones", where each zone is a power of two number of
1784 pages. This option selects the largest power of two that the kernel
1785 keeps in the memory allocator. If you need to allocate very large
1786 blocks of physically contiguous memory, then you may need to
1787 increase this value.
1788
1789 This config option is actually maximum order plus one. For example,
1790 a value of 11 means that the largest free memory block is 2^10 pages.
1791
Linus Torvalds1da177e2005-04-16 15:20:36 -07001792config ALIGNMENT_TRAP
1793 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001794 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001795 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001796 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001797 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001798 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001799 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1800 address divisible by 4. On 32-bit ARM processors, these non-aligned
1801 fetch/store instructions will be emulated in software if you say
1802 here, which has a severe performance impact. This is necessary for
1803 correct operation of some network protocols. With an IP-only
1804 configuration it is safe to say N, otherwise say Y.
1805
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001806config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001807 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1808 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001809 default y if CPU_FEROCEON
1810 help
1811 Implement faster copy_to_user and clear_user methods for CPU
1812 cores where a 8-word STM instruction give significantly higher
1813 memory write throughput than a sequence of individual 32bit stores.
1814
1815 A possible side effect is a slight increase in scheduling latency
1816 between threads sharing the same address space if they invoke
1817 such copy operations with large buffers.
1818
1819 However, if the CPU data cache is using a write-allocate mode,
1820 this option is unlikely to provide any performance gain.
1821
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001822config SECCOMP
1823 bool
1824 prompt "Enable seccomp to safely compute untrusted bytecode"
1825 ---help---
1826 This kernel feature is useful for number crunching applications
1827 that may need to compute untrusted bytecode during their
1828 execution. By using pipes or other transports made available to
1829 the process as file descriptors supporting the read/write
1830 syscalls, it's possible to isolate those applications in
1831 their own address space using seccomp. Once seccomp is
1832 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1833 and the task is only allowed to execute a few safe syscalls
1834 defined by each seccomp mode.
1835
Nicolas Pitrec743f382010-05-24 23:55:42 -04001836config CC_STACKPROTECTOR
1837 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001838 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001839 help
1840 This option turns on the -fstack-protector GCC feature. This
1841 feature puts, at the beginning of functions, a canary value on
1842 the stack just before the return address, and validates
1843 the value just before actually returning. Stack based buffer
1844 overflows (that need to overwrite this return address) now also
1845 overwrite the canary, which gets detected and the attack is then
1846 neutralized via a kernel panic.
1847 This feature requires gcc version 4.2 or above.
1848
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001849config XEN_DOM0
1850 def_bool y
1851 depends on XEN
1852
1853config XEN
1854 bool "Xen guest support on ARM (EXPERIMENTAL)"
1855 depends on EXPERIMENTAL && ARM && OF
1856 help
1857 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1858
Linus Torvalds1da177e2005-04-16 15:20:36 -07001859endmenu
1860
1861menu "Boot options"
1862
Grant Likely9eb8f672011-04-28 14:27:20 -06001863config USE_OF
1864 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001865 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001866 select OF
1867 select OF_EARLY_FLATTREE
1868 help
1869 Include support for flattened device tree machine descriptions.
1870
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001871config ATAGS
1872 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1873 default y
1874 help
1875 This is the traditional way of passing data to the kernel at boot
1876 time. If you are solely relying on the flattened device tree (or
1877 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1878 to remove ATAGS support from your kernel binary. If unsure,
1879 leave this to y.
1880
1881config DEPRECATED_PARAM_STRUCT
1882 bool "Provide old way to pass kernel parameters"
1883 depends on ATAGS
1884 help
1885 This was deprecated in 2001 and announced to live on for 5 years.
1886 Some old boot loaders still use this way.
1887
Linus Torvalds1da177e2005-04-16 15:20:36 -07001888# Compressed boot loader in ROM. Yes, we really want to ask about
1889# TEXT and BSS so we preserve their values in the config files.
1890config ZBOOT_ROM_TEXT
1891 hex "Compressed ROM boot loader base address"
1892 default "0"
1893 help
1894 The physical address at which the ROM-able zImage is to be
1895 placed in the target. Platforms which normally make use of
1896 ROM-able zImage formats normally set this to a suitable
1897 value in their defconfig file.
1898
1899 If ZBOOT_ROM is not enabled, this has no effect.
1900
1901config ZBOOT_ROM_BSS
1902 hex "Compressed ROM boot loader BSS address"
1903 default "0"
1904 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001905 The base address of an area of read/write memory in the target
1906 for the ROM-able zImage which must be available while the
1907 decompressor is running. It must be large enough to hold the
1908 entire decompressed kernel plus an additional 128 KiB.
1909 Platforms which normally make use of ROM-able zImage formats
1910 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001911
1912 If ZBOOT_ROM is not enabled, this has no effect.
1913
1914config ZBOOT_ROM
1915 bool "Compressed boot loader in ROM/flash"
1916 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1917 help
1918 Say Y here if you intend to execute your compressed kernel image
1919 (zImage) directly from ROM or flash. If unsure, say N.
1920
Simon Horman090ab3f2011-04-26 06:29:53 +01001921choice
1922 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1923 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1924 default ZBOOT_ROM_NONE
1925 help
1926 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001927 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001928 kernel image to an MMC or SD card and boot the kernel straight
1929 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001930 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001931 rest the kernel image to RAM.
1932
1933config ZBOOT_ROM_NONE
1934 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1935 help
1936 Do not load image from SD or MMC
1937
Simon Hormanf45b1142011-01-11 04:01:08 +01001938config ZBOOT_ROM_MMCIF
1939 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001940 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001941 Load image from MMCIF hardware block.
1942
1943config ZBOOT_ROM_SH_MOBILE_SDHI
1944 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1945 help
1946 Load image from SDHI hardware block
1947
1948endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001949
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001950config ARM_APPENDED_DTB
1951 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1952 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1953 help
1954 With this option, the boot code will look for a device tree binary
1955 (DTB) appended to zImage
1956 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1957
1958 This is meant as a backward compatibility convenience for those
1959 systems with a bootloader that can't be upgraded to accommodate
1960 the documented boot protocol using a device tree.
1961
1962 Beware that there is very little in terms of protection against
1963 this option being confused by leftover garbage in memory that might
1964 look like a DTB header after a reboot if no actual DTB is appended
1965 to zImage. Do not leave this option active in a production kernel
1966 if you don't intend to always append a DTB. Proper passing of the
1967 location into r2 of a bootloader provided DTB is always preferable
1968 to this option.
1969
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001970config ARM_ATAG_DTB_COMPAT
1971 bool "Supplement the appended DTB with traditional ATAG information"
1972 depends on ARM_APPENDED_DTB
1973 help
1974 Some old bootloaders can't be updated to a DTB capable one, yet
1975 they provide ATAGs with memory configuration, the ramdisk address,
1976 the kernel cmdline string, etc. Such information is dynamically
1977 provided by the bootloader and can't always be stored in a static
1978 DTB. To allow a device tree enabled kernel to be used with such
1979 bootloaders, this option allows zImage to extract the information
1980 from the ATAG list and store it at run time into the appended DTB.
1981
Genoud Richardd0f34a112012-06-26 16:37:59 +01001982choice
1983 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
1984 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1985
1986config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1987 bool "Use bootloader kernel arguments if available"
1988 help
1989 Uses the command-line options passed by the boot loader instead of
1990 the device tree bootargs property. If the boot loader doesn't provide
1991 any, the device tree bootargs property will be used.
1992
1993config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
1994 bool "Extend with bootloader kernel arguments"
1995 help
1996 The command-line arguments provided by the boot loader will be
1997 appended to the the device tree bootargs property.
1998
1999endchoice
2000
Linus Torvalds1da177e2005-04-16 15:20:36 -07002001config CMDLINE
2002 string "Default kernel command string"
2003 default ""
2004 help
2005 On some architectures (EBSA110 and CATS), there is currently no way
2006 for the boot loader to pass arguments to the kernel. For these
2007 architectures, you should supply some command-line options at build
2008 time by entering them here. As a minimum, you should specify the
2009 memory size and the root device (e.g., mem=64M root=/dev/nfs).
2010
Victor Boivie4394c122011-05-04 17:07:55 +01002011choice
2012 prompt "Kernel command line type" if CMDLINE != ""
2013 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002014 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01002015
2016config CMDLINE_FROM_BOOTLOADER
2017 bool "Use bootloader kernel arguments if available"
2018 help
2019 Uses the command-line options passed by the boot loader. If
2020 the boot loader doesn't provide any, the default kernel command
2021 string provided in CMDLINE will be used.
2022
2023config CMDLINE_EXTEND
2024 bool "Extend bootloader kernel arguments"
2025 help
2026 The command-line arguments provided by the boot loader will be
2027 appended to the default kernel command string.
2028
Alexander Holler92d20402010-02-16 19:04:53 +01002029config CMDLINE_FORCE
2030 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01002031 help
2032 Always use the default kernel command string, even if the boot
2033 loader passes other arguments to the kernel.
2034 This is useful if you cannot or don't want to change the
2035 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01002036endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002037
Linus Torvalds1da177e2005-04-16 15:20:36 -07002038config XIP_KERNEL
2039 bool "Kernel Execute-In-Place from ROM"
Rob Herring387798b2012-09-06 13:41:12 -05002040 depends on !ZBOOT_ROM && !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07002041 help
2042 Execute-In-Place allows the kernel to run from non-volatile storage
2043 directly addressable by the CPU, such as NOR flash. This saves RAM
2044 space since the text section of the kernel is not loaded from flash
2045 to RAM. Read-write sections, such as the data section and stack,
2046 are still copied to RAM. The XIP kernel is not compressed since
2047 it has to run directly from flash, so it will take more space to
2048 store it. The flash address used to link the kernel object files,
2049 and for storing it, is configuration dependent. Therefore, if you
2050 say Y here, you must know the proper physical address where to
2051 store the kernel image depending on your own flash memory usage.
2052
2053 Also note that the make target becomes "make xipImage" rather than
2054 "make zImage" or "make Image". The final kernel binary to put in
2055 ROM memory will be arch/arm/boot/xipImage.
2056
2057 If unsure, say N.
2058
2059config XIP_PHYS_ADDR
2060 hex "XIP Kernel Physical Location"
2061 depends on XIP_KERNEL
2062 default "0x00080000"
2063 help
2064 This is the physical address in your flash memory the kernel will
2065 be linked for and stored to. This address is dependent on your
2066 own flash usage.
2067
Richard Purdiec587e4a2007-02-06 21:29:00 +01002068config KEXEC
2069 bool "Kexec system call (EXPERIMENTAL)"
Will Deacon02b73e22011-06-06 15:49:23 +01002070 depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002071 help
2072 kexec is a system call that implements the ability to shutdown your
2073 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002074 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002075 you can start any kernel with it, not just Linux.
2076
2077 It is an ongoing process to be certain the hardware in a machine
2078 is properly shutdown, so do not be surprised if this code does not
2079 initially work for you. It may help to enable device hotplugging
2080 support.
2081
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002082config ATAGS_PROC
2083 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002084 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01002085 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002086 help
2087 Should the atags used to boot the kernel be exported in an "atags"
2088 file in procfs. Useful with kexec.
2089
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002090config CRASH_DUMP
2091 bool "Build kdump crash kernel (EXPERIMENTAL)"
2092 depends on EXPERIMENTAL
2093 help
2094 Generate crash dump after being started by kexec. This should
2095 be normally only set in special crash dump kernels which are
2096 loaded in the main kernel with kexec-tools into a specially
2097 reserved region and then later executed after a crash by
2098 kdump/kexec. The crash dump kernel must be compiled to a
2099 memory address not used by the main kernel
2100
2101 For more details see Documentation/kdump/kdump.txt
2102
Eric Miaoe69edc792010-07-05 15:56:50 +02002103config AUTO_ZRELADDR
2104 bool "Auto calculation of the decompressed kernel image address"
2105 depends on !ZBOOT_ROM && !ARCH_U300
2106 help
2107 ZRELADDR is the physical address where the decompressed kernel
2108 image will be placed. If AUTO_ZRELADDR is selected, the address
2109 will be determined at run-time by masking the current IP with
2110 0xf8000000. This assumes the zImage being placed in the first 128MB
2111 from start of memory.
2112
Linus Torvalds1da177e2005-04-16 15:20:36 -07002113endmenu
2114
Russell Kingac9d7ef2008-08-18 17:26:00 +01002115menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002116
Ben Dooks89c52ed2009-07-30 23:23:24 +01002117if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002118
2119source "drivers/cpufreq/Kconfig"
2120
Yong Shen64f102b2010-10-21 21:18:59 +08002121config CPU_FREQ_IMX
2122 tristate "CPUfreq driver for i.MX CPUs"
2123 depends on ARCH_MXC && CPU_FREQ
Arnd Bergmannf637c4c2012-08-16 10:40:40 +00002124 select CPU_FREQ_TABLE
Yong Shen64f102b2010-10-21 21:18:59 +08002125 help
2126 This enables the CPUfreq driver for i.MX CPUs.
2127
Linus Torvalds1da177e2005-04-16 15:20:36 -07002128config CPU_FREQ_SA1100
2129 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002130
2131config CPU_FREQ_SA1110
2132 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002133
2134config CPU_FREQ_INTEGRATOR
2135 tristate "CPUfreq driver for ARM Integrator CPUs"
2136 depends on ARCH_INTEGRATOR && CPU_FREQ
2137 default y
2138 help
2139 This enables the CPUfreq driver for ARM Integrator CPUs.
2140
2141 For details, take a look at <file:Documentation/cpu-freq>.
2142
2143 If in doubt, say Y.
2144
Russell King9e2697f2007-12-14 13:30:14 +00002145config CPU_FREQ_PXA
2146 bool
2147 depends on CPU_FREQ && ARCH_PXA && PXA25x
2148 default y
2149 select CPU_FREQ_DEFAULT_GOV_USERSPACE
Russell Kingb1b3f492012-10-06 17:12:25 +01002150 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002151
Ben Dooks9d56c022009-07-30 23:23:25 +01002152config CPU_FREQ_S3C
2153 bool
2154 help
2155 Internal configuration node for common cpufreq on Samsung SoC
2156
2157config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002158 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09002159 depends on ARCH_S3C24XX && CPU_FREQ && EXPERIMENTAL
Ben Dooks9d56c022009-07-30 23:23:25 +01002160 select CPU_FREQ_S3C
2161 help
2162 This enables the CPUfreq driver for the Samsung S3C24XX family
2163 of CPUs.
2164
2165 For details, take a look at <file:Documentation/cpu-freq>.
2166
2167 If in doubt, say N.
2168
2169config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002170 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002171 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2172 help
2173 Compile in support for changing the PLL frequency from the
2174 S3C24XX series CPUfreq driver. The PLL takes time to settle
2175 after a frequency change, so by default it is not enabled.
2176
2177 This also means that the PLL tables for the selected CPU(s) will
2178 be built which may increase the size of the kernel image.
2179
2180config CPU_FREQ_S3C24XX_DEBUG
2181 bool "Debug CPUfreq Samsung driver core"
2182 depends on CPU_FREQ_S3C24XX
2183 help
2184 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2185
2186config CPU_FREQ_S3C24XX_IODEBUG
2187 bool "Debug CPUfreq Samsung driver IO timing"
2188 depends on CPU_FREQ_S3C24XX
2189 help
2190 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2191
Ben Dookse6d197a2009-07-30 23:23:42 +01002192config CPU_FREQ_S3C24XX_DEBUGFS
2193 bool "Export debugfs for CPUFreq"
2194 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2195 help
2196 Export status information via debugfs.
2197
Linus Torvalds1da177e2005-04-16 15:20:36 -07002198endif
2199
Russell Kingac9d7ef2008-08-18 17:26:00 +01002200source "drivers/cpuidle/Kconfig"
2201
2202endmenu
2203
Linus Torvalds1da177e2005-04-16 15:20:36 -07002204menu "Floating point emulation"
2205
2206comment "At least one emulation must be selected"
2207
2208config FPE_NWFPE
2209 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002210 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002211 ---help---
2212 Say Y to include the NWFPE floating point emulator in the kernel.
2213 This is necessary to run most binaries. Linux does not currently
2214 support floating point hardware so you need to say Y here even if
2215 your machine has an FPA or floating point co-processor podule.
2216
2217 You may say N here if you are going to load the Acorn FPEmulator
2218 early in the bootup.
2219
2220config FPE_NWFPE_XP
2221 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002222 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002223 help
2224 Say Y to include 80-bit support in the kernel floating-point
2225 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2226 Note that gcc does not generate 80-bit operations by default,
2227 so in most cases this option only enlarges the size of the
2228 floating point emulator without any good reason.
2229
2230 You almost surely want to say N here.
2231
2232config FPE_FASTFPE
2233 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002234 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002235 ---help---
2236 Say Y here to include the FAST floating point emulator in the kernel.
2237 This is an experimental much faster emulator which now also has full
2238 precision for the mantissa. It does not support any exceptions.
2239 It is very simple, and approximately 3-6 times faster than NWFPE.
2240
2241 It should be sufficient for most programs. It may be not suitable
2242 for scientific calculations, but you have to check this for yourself.
2243 If you do not feel you need a faster FP emulation you should better
2244 choose NWFPE.
2245
2246config VFP
2247 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002248 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002249 help
2250 Say Y to include VFP support code in the kernel. This is needed
2251 if your hardware includes a VFP unit.
2252
2253 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2254 release notes and additional status information.
2255
2256 Say N if your target does not have VFP hardware.
2257
Catalin Marinas25ebee02007-09-25 15:22:24 +01002258config VFPv3
2259 bool
2260 depends on VFP
2261 default y if CPU_V7
2262
Catalin Marinasb5872db2008-01-10 19:16:17 +01002263config NEON
2264 bool "Advanced SIMD (NEON) Extension support"
2265 depends on VFPv3 && CPU_V7
2266 help
2267 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2268 Extension.
2269
Linus Torvalds1da177e2005-04-16 15:20:36 -07002270endmenu
2271
2272menu "Userspace binary formats"
2273
2274source "fs/Kconfig.binfmt"
2275
2276config ARTHUR
2277 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002278 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002279 help
2280 Say Y here to include the kernel code necessary if you want to run
2281 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2282 experimental; if this sounds frightening, say N and sleep in peace.
2283 You can also say M here to compile this support as a module (which
2284 will be called arthur).
2285
2286endmenu
2287
2288menu "Power management options"
2289
Russell Kingeceab4a2005-11-15 11:31:41 +00002290source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002291
Johannes Bergf4cb5702007-12-08 02:14:00 +01002292config ARCH_SUSPEND_POSSIBLE
Stephen Warren4b1082c2012-09-05 09:58:27 -06002293 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002294 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
Chao Xie3f5d0812012-05-07 11:23:58 +08002295 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002296 def_bool y
2297
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002298config ARM_CPU_SUSPEND
2299 def_bool PM_SLEEP
2300
Linus Torvalds1da177e2005-04-16 15:20:36 -07002301endmenu
2302
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002303source "net/Kconfig"
2304
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002305source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002306
2307source "fs/Kconfig"
2308
Linus Torvalds1da177e2005-04-16 15:20:36 -07002309source "arch/arm/Kconfig.debug"
2310
2311source "security/Kconfig"
2312
2313source "crypto/Kconfig"
2314
2315source "lib/Kconfig"