blob: c1f1a7eee953de4378b1f74bd4907c969f96dceb [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
Mark Rutland3d067702012-10-30 12:13:42 +00006 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
Russell King171b3f02013-09-12 21:24:42 +01007 select ARCH_HAVE_CUSTOM_GPIO_H
Mark Salterd7018842013-10-07 22:07:58 -04008 select ARCH_MIGHT_HAVE_PC_PARPORT
Will Deacon0cbad9c2013-10-09 17:19:22 +01009 select ARCH_USE_CMPXCHG_LOCKREF
Russell Kingb1b3f492012-10-06 17:12:25 +010010 select ARCH_WANT_IPC_PARSE_VERSION
Stephen Boydee951c62012-10-29 19:19:34 +010011 select BUILDTIME_EXTABLE_SORT if MMU
Russell King171b3f02013-09-12 21:24:42 +010012 select CLONE_BACKWARDS
Russell Kingb1b3f492012-10-06 17:12:25 +010013 select CPU_PM if (SUSPEND || CPU_IDLE)
Will Deacon39b175a2012-12-04 12:57:11 +010014 select DCACHE_WORD_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && !CPU_BIG_ENDIAN && MMU
Uwe Kleine-König4477ca42013-03-21 21:02:37 +010015 select GENERIC_ATOMIC64 if (CPU_V7M || CPU_V6 || !CPU_32v6K || !AEABI)
Russell Kingb1b3f492012-10-06 17:12:25 +010016 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
Russell King171b3f02013-09-12 21:24:42 +010017 select GENERIC_IDLE_POLL_SETUP
Russell Kingb1b3f492012-10-06 17:12:25 +010018 select GENERIC_IRQ_PROBE
19 select GENERIC_IRQ_SHOW
Russell Kingb1b3f492012-10-06 17:12:25 +010020 select GENERIC_PCI_IOMAP
Stephen Boyd38ff87f2013-06-01 23:39:40 -070021 select GENERIC_SCHED_CLOCK
Russell Kingb1b3f492012-10-06 17:12:25 +010022 select GENERIC_SMP_IDLE_THREAD
23 select GENERIC_STRNCPY_FROM_USER
24 select GENERIC_STRNLEN_USER
25 select HARDIRQS_SW_RESEND
Rabin Vincent09f05d82012-02-18 17:52:41 +010026 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
Jason Wessel5cbad0e2008-02-20 13:33:40 -060027 select HAVE_ARCH_KGDB
Kees Cook91702172013-11-09 00:51:56 +010028 select HAVE_ARCH_SECCOMP_FILTER if (AEABI && !OABI_COMPAT)
Wade Farnsworth0693bf62012-04-04 16:19:47 +010029 select HAVE_ARCH_TRACEHOOK
Russell Kingb1b3f492012-10-06 17:12:25 +010030 select HAVE_BPF_JIT
Russell King171b3f02013-09-12 21:24:42 +010031 select HAVE_CONTEXT_TRACKING
Russell Kingb1b3f492012-10-06 17:12:25 +010032 select HAVE_C_RECORDMCOUNT
33 select HAVE_DEBUG_KMEMLEAK
34 select HAVE_DMA_API_DEBUG
35 select HAVE_DMA_ATTRS
36 select HAVE_DMA_CONTIGUOUS if MMU
37 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
38 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
39 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
40 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
41 select HAVE_GENERIC_DMA_COHERENT
Russell Kingb1b3f492012-10-06 17:12:25 +010042 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
43 select HAVE_IDE if PCI || ISA || PCMCIA
Russell King87c46b62013-05-04 14:38:59 +010044 select HAVE_IRQ_TIME_ACCOUNTING
Russell Kingb1b3f492012-10-06 17:12:25 +010045 select HAVE_KERNEL_GZIP
Kyungsik Leef9b493a2013-07-08 16:01:48 -070046 select HAVE_KERNEL_LZ4
Russell Kingb1b3f492012-10-06 17:12:25 +010047 select HAVE_KERNEL_LZMA
48 select HAVE_KERNEL_LZO
49 select HAVE_KERNEL_XZ
Jon Medhurst856bc352011-06-14 13:09:39 +010050 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080051 select HAVE_KRETPROBES if (HAVE_KPROBES)
Russell Kingb1b3f492012-10-06 17:12:25 +010052 select HAVE_MEMBLOCK
Russell King171b3f02013-09-12 21:24:42 +010053 select HAVE_MOD_ARCH_SPECIFIC if ARM_UNWIND
Russell Kingb1b3f492012-10-06 17:12:25 +010054 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jamie Iles7ada1892010-02-02 20:24:58 +010055 select HAVE_PERF_EVENTS
Will Deacon49863892013-09-26 12:36:35 +010056 select HAVE_PERF_REGS
57 select HAVE_PERF_USER_STACK_DUMP
Will Deacone513f8b2010-06-25 12:24:53 +010058 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kingb1b3f492012-10-06 17:12:25 +010059 select HAVE_SYSCALL_TRACEPOINTS
Catalin Marinasaf1839e2012-10-08 16:28:08 -070060 select HAVE_UID16
Kevin Hilman31c1fc82013-09-16 15:28:22 -070061 select HAVE_VIRT_CPU_ACCOUNTING_GEN
Thomas Gleixnerda0ec6f2013-08-14 20:43:17 +010062 select IRQ_FORCED_THREADING
Anna-Maria Gleixner3d92a712012-05-18 16:45:44 +000063 select KTIME_SCALAR
Russell King171b3f02013-09-12 21:24:42 +010064 select MODULES_USE_ELF_REL
65 select OLD_SIGACTION
66 select OLD_SIGSUSPEND3
Russell Kingb1b3f492012-10-06 17:12:25 +010067 select PERF_USE_VMALLOC
68 select RTC_LIB
69 select SYS_SUPPORTS_APM_EMULATION
Russell King171b3f02013-09-12 21:24:42 +010070 # Above selects are sorted alphabetically; please add new ones
71 # according to that. Thanks.
Linus Torvalds1da177e2005-04-16 15:20:36 -070072 help
73 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000074 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070075 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000076 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070077 Europe. There is an ARM Linux project with a web page at
78 <http://www.arm.linux.org.uk/>.
79
Russell King74facff2011-06-02 11:16:22 +010080config ARM_HAS_SG_CHAIN
81 bool
82
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020083config NEED_SG_DMA_LENGTH
84 bool
85
86config ARM_DMA_USE_IOMMU
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020087 bool
Russell Kingb1b3f492012-10-06 17:12:25 +010088 select ARM_HAS_SG_CHAIN
89 select NEED_SG_DMA_LENGTH
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020090
Seung-Woo Kim60460ab2013-02-06 13:21:14 +090091if ARM_DMA_USE_IOMMU
92
93config ARM_DMA_IOMMU_ALIGNMENT
94 int "Maximum PAGE_SIZE order of alignment for DMA IOMMU buffers"
95 range 4 9
96 default 8
97 help
98 DMA mapping framework by default aligns all buffers to the smallest
99 PAGE_SIZE order which is greater than or equal to the requested buffer
100 size. This works well for buffers up to a few hundreds kilobytes, but
101 for larger buffers it just a waste of address space. Drivers which has
102 relatively small addressing window (like 64Mib) might run out of
103 virtual space with just a few allocations.
104
105 With this parameter you can specify the maximum PAGE_SIZE order for
106 DMA IOMMU buffers. Larger buffers will be aligned only to this
107 specified order. The order is expressed as a power of two multiplied
108 by the PAGE_SIZE.
109
110endif
111
Russell King1a189b92008-04-13 21:41:55 +0100112config HAVE_PWM
113 bool
114
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100115config MIGHT_HAVE_PCI
116 bool
117
Ralf Baechle75e71532007-02-09 17:08:58 +0000118config SYS_SUPPORTS_APM_EMULATION
119 bool
120
Linus Walleijbc581772009-09-15 17:30:37 +0100121config HAVE_TCM
122 bool
123 select GENERIC_ALLOCATOR
124
Russell Kinge119bff2010-01-10 17:23:29 +0000125config HAVE_PROC_CPU
126 bool
127
Al Viro5ea81762007-02-11 15:41:31 +0000128config NO_IOPORT
129 bool
Al Viro5ea81762007-02-11 15:41:31 +0000130
Linus Torvalds1da177e2005-04-16 15:20:36 -0700131config EISA
132 bool
133 ---help---
134 The Extended Industry Standard Architecture (EISA) bus was
135 developed as an open alternative to the IBM MicroChannel bus.
136
137 The EISA bus provided some of the features of the IBM MicroChannel
138 bus while maintaining backward compatibility with cards made for
139 the older ISA bus. The EISA bus saw limited use between 1988 and
140 1995 when it was made obsolete by the PCI bus.
141
142 Say Y here if you are building a kernel for an EISA-based machine.
143
144 Otherwise, say N.
145
146config SBUS
147 bool
148
Russell Kingf16fb1e2007-04-28 09:59:37 +0100149config STACKTRACE_SUPPORT
150 bool
151 default y
152
Nicolas Pitref76e9152008-04-24 01:31:46 -0400153config HAVE_LATENCYTOP_SUPPORT
154 bool
155 depends on !SMP
156 default y
157
Russell Kingf16fb1e2007-04-28 09:59:37 +0100158config LOCKDEP_SUPPORT
159 bool
160 default y
161
Russell King7ad1bcb2006-08-27 12:07:02 +0100162config TRACE_IRQFLAGS_SUPPORT
163 bool
164 default y
165
Linus Torvalds1da177e2005-04-16 15:20:36 -0700166config RWSEM_GENERIC_SPINLOCK
167 bool
168 default y
169
170config RWSEM_XCHGADD_ALGORITHM
171 bool
172
David Howellsf0d1b0b2006-12-08 02:37:49 -0800173config ARCH_HAS_ILOG2_U32
174 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800175
176config ARCH_HAS_ILOG2_U64
177 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800178
Ben Dooks89c52ed2009-07-30 23:23:24 +0100179config ARCH_HAS_CPUFREQ
180 bool
181 help
182 Internal node to signify that the ARCH has CPUFREQ support
183 and that the relevant menu configurations are displayed for
184 it.
185
Eduardo Valentin4a1b5732013-06-13 22:58:52 +0100186config ARCH_HAS_BANDGAP
187 bool
188
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800189config GENERIC_HWEIGHT
190 bool
191 default y
192
Linus Torvalds1da177e2005-04-16 15:20:36 -0700193config GENERIC_CALIBRATE_DELAY
194 bool
195 default y
196
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100197config ARCH_MAY_HAVE_PC_FDC
198 bool
199
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800200config ZONE_DMA
201 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800202
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800203config NEED_DMA_MAP_STATE
204 def_bool y
205
Rob Herring58af4a22012-03-20 14:33:01 -0500206config ARCH_HAS_DMA_SET_COHERENT_MASK
207 bool
208
Linus Torvalds1da177e2005-04-16 15:20:36 -0700209config GENERIC_ISA_DMA
210 bool
211
Linus Torvalds1da177e2005-04-16 15:20:36 -0700212config FIQ
213 bool
214
Rob Herring13a50452012-02-07 09:28:22 -0600215config NEED_RET_TO_USER
216 bool
217
Al Viro034d2f52005-12-19 16:27:59 -0500218config ARCH_MTD_XIP
219 bool
220
Hyok S. Choic760fc12006-03-27 15:18:50 +0100221config VECTORS_BASE
222 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900223 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100224 default DRAM_BASE if REMAP_VECTORS_TO_RAM
225 default 0x00000000
226 help
Russell King19accfd2013-07-04 11:40:32 +0100227 The base address of exception vectors. This must be two pages
228 in size.
Hyok S. Choic760fc12006-03-27 15:18:50 +0100229
Russell Kingdc21af92011-01-04 19:09:43 +0000230config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100231 bool "Patch physical to virtual translations at runtime" if EMBEDDED
232 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100233 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000234 depends on !ARCH_REALVIEW || !SPARSEMEM
235 help
Russell King111e9a52011-05-12 10:02:42 +0100236 Patch phys-to-virt and virt-to-phys translation functions at
237 boot and module load time according to the position of the
238 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000239
Russell King111e9a52011-05-12 10:02:42 +0100240 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100241 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000242
Russell Kingc1beced2011-08-10 10:23:45 +0100243 Only disable this option if you know that you do not require
244 this feature (eg, building a kernel for a single machine) and
245 you need to shrink the kernel to the minimal size.
246
Rob Herring01464222012-08-28 13:06:41 -0500247config NEED_MACH_GPIO_H
248 bool
249 help
250 Select this when mach/gpio.h is required to provide special
251 definitions for this platform. The need for mach/gpio.h should
252 be avoided when possible.
253
Rob Herringc334bc12012-03-04 22:03:33 -0600254config NEED_MACH_IO_H
255 bool
256 help
257 Select this when mach/io.h is required to provide special
258 definitions for this platform. The need for mach/io.h should
259 be avoided when possible.
260
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400261config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400262 bool
Russell King111e9a52011-05-12 10:02:42 +0100263 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400264 Select this when mach/memory.h is required to provide special
265 definitions for this platform. The need for mach/memory.h should
266 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400267
268config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100269 hex "Physical address of main memory" if MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400270 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre974c0722011-12-02 23:09:42 +0100271 default DRAM_BASE if !MMU
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400272 help
273 Please provide the physical address corresponding to the
274 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000275
Simon Glass87e040b2011-08-16 23:44:26 +0100276config GENERIC_BUG
277 def_bool y
278 depends on BUG
279
Linus Torvalds1da177e2005-04-16 15:20:36 -0700280source "init/Kconfig"
281
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700282source "kernel/Kconfig.freezer"
283
Linus Torvalds1da177e2005-04-16 15:20:36 -0700284menu "System Type"
285
Hyok S. Choi3c427972009-07-24 12:35:00 +0100286config MMU
287 bool "MMU-based Paged Memory Management Support"
288 default y
289 help
290 Select if you want MMU-based virtualised addressing space
291 support by paged memory management. If unsure, say 'Y'.
292
Russell Kingccf50e22010-03-15 19:03:06 +0000293#
294# The "ARM system type" choice list is ordered alphabetically by option
295# text. Please add new entries in the option alphabetic order.
296#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700297choice
298 prompt "ARM system type"
Arnd Bergmann1420b222013-02-14 13:33:36 +0100299 default ARCH_VERSATILE if !MMU
300 default ARCH_MULTIPLATFORM if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700301
Rob Herring387798b2012-09-06 13:41:12 -0500302config ARCH_MULTIPLATFORM
303 bool "Allow multiple platforms to be selected"
Russell Kingb1b3f492012-10-06 17:12:25 +0100304 depends on MMU
Rob Herring387798b2012-09-06 13:41:12 -0500305 select ARM_PATCH_PHYS_VIRT
306 select AUTO_ZRELADDR
Dinh Nguyen66314222012-07-18 16:07:18 -0600307 select COMMON_CLK
Rob Herring387798b2012-09-06 13:41:12 -0500308 select MULTI_IRQ_HANDLER
Dinh Nguyen66314222012-07-18 16:07:18 -0600309 select SPARSE_IRQ
310 select USE_OF
Dinh Nguyen66314222012-07-18 16:07:18 -0600311
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100312config ARCH_INTEGRATOR
313 bool "ARM Ltd. Integrator family"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100314 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100315 select ARM_AMBA
Linus Walleija6131632012-06-11 17:33:12 +0200316 select COMMON_CLK
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200317 select COMMON_CLK_VERSATILE
Russell Kingb1b3f492012-10-06 17:12:25 +0100318 select GENERIC_CLOCKEVENTS
Linus Walleij9904f792011-12-09 10:29:23 +0100319 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000320 select ICST
Russell Kingb1b3f492012-10-06 17:12:25 +0100321 select MULTI_IRQ_HANDLER
322 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000323 select PLAT_VERSATILE
Linus Walleij695436e2012-02-26 10:46:48 +0100324 select SPARSE_IRQ
Linus Walleijd7057e12013-06-15 22:01:13 +0200325 select USE_OF
Linus Walleij2389d502012-10-31 22:04:31 +0100326 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100327 help
328 Support for ARM's Integrator platform.
329
330config ARCH_REALVIEW
331 bool "ARM Ltd. RealView family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100332 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100333 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100334 select ARM_TIMER_SP804
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200335 select COMMON_CLK
336 select COMMON_CLK_VERSATILE
Catalin Marinasae30cea2008-02-04 17:26:55 +0100337 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100338 select GPIO_PL061 if GPIOLIB
339 select ICST
340 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000341 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000342 select PLAT_VERSATILE_CLCD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100343 help
344 This enables support for ARM Ltd RealView boards.
345
346config ARCH_VERSATILE
347 bool "ARM Ltd. Versatile family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100348 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100349 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100350 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100351 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100352 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100353 select GENERIC_CLOCKEVENTS
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900354 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000355 select ICST
Russell Kingf4b8b312010-01-14 12:48:06 +0000356 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000357 select PLAT_VERSATILE_CLCD
Russell Kingb1b3f492012-10-06 17:12:25 +0100358 select PLAT_VERSATILE_CLOCK
Linus Walleij2389d502012-10-31 22:04:31 +0100359 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100360 help
361 This enables support for ARM Ltd Versatile board.
362
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100363config ARCH_AT91
364 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100365 select ARCH_REQUIRE_GPIOLIB
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100366 select CLKDEV_LOOKUP
Nicolas Ferree2615012011-11-22 22:26:09 +0100367 select IRQ_DOMAIN
Rob Herring01464222012-08-28 13:06:41 -0500368 select NEED_MACH_GPIO_H
Rob Herring1ac02d72012-04-04 17:48:04 -0500369 select NEED_MACH_IO_H if PCCARD
Jean-Christophe PLAGNIOL-VILLARD6732ae52012-07-12 23:35:02 +0800370 select PINCTRL
371 select PINCTRL_AT91 if USE_OF
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100372 help
Nicolas Ferre929e9942012-03-15 12:21:12 +0100373 This enables support for systems based on Atmel
374 AT91RM9200 and AT91SAM9* processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100375
Russell King93e22562012-10-12 14:20:52 +0100376config ARCH_CLPS711X
377 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
Alexander Shiyana3b8d4a2012-10-09 20:05:56 +0400378 select ARCH_REQUIRE_GPIOLIB
Alexander Shiyanea7d1bc2012-11-17 17:57:11 +0400379 select AUTO_ZRELADDR
Alexander Shiyanc99f72a2013-05-13 21:07:32 +0400380 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100381 select COMMON_CLK
382 select CPU_ARM720T
Alexander Shiyan4a8355c2012-10-10 19:45:27 +0400383 select GENERIC_CLOCKEVENTS
Alexander Shiyan65976192013-05-13 21:07:36 +0400384 select MFD_SYSCON
Alexander Shiyan99f04c82012-11-17 17:57:14 +0400385 select MULTI_IRQ_HANDLER
Alexander Shiyan0d8be812012-11-17 17:57:13 +0400386 select SPARSE_IRQ
Russell King93e22562012-10-12 14:20:52 +0100387 help
388 Support for Cirrus Logic 711x/721x/731x based boards.
389
Russell King788c9702009-04-26 14:21:59 +0100390config ARCH_GEMINI
391 bool "Cortina Systems Gemini"
Russell King788c9702009-04-26 14:21:59 +0100392 select ARCH_REQUIRE_GPIOLIB
Linus Walleijf3372c02013-10-01 12:57:20 +0200393 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100394 select CPU_FA526
Linus Walleijf3372c02013-10-01 12:57:20 +0200395 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100396 help
397 Support for the Cortina Systems Gemini family SoCs
398
Linus Torvalds1da177e2005-04-16 15:20:36 -0700399config ARCH_EBSA110
400 bool "EBSA-110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100401 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000402 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100403 select ISA
Rob Herringc334bc12012-03-04 22:03:33 -0600404 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400405 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100406 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700407 help
408 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000409 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700410 Ethernet interface, two PCMCIA sockets, two serial ports and a
411 parallel port.
412
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000413config ARCH_EP93XX
414 bool "EP93xx-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100415 select ARCH_HAS_HOLES_MEMORYMODEL
416 select ARCH_REQUIRE_GPIOLIB
417 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000418 select ARM_AMBA
419 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100420 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100421 select CPU_ARM920T
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100422 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000423 help
424 This enables support for the Cirrus EP93xx series of CPUs.
425
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426config ARCH_FOOTBRIDGE
427 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000428 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700429 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000430 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200431 select HAVE_IDE
Rob Herring8ef6e622012-03-01 20:48:12 -0600432 select NEED_MACH_IO_H if !MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400433 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000434 help
435 Support for systems based on the DC21285 companion chip
436 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700437
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100438config ARCH_NETX
439 bool "Hilscher NetX based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100440 select ARM_VIC
Russell King234b6ced2011-05-08 14:09:47 +0100441 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000442 select CPU_ARM926T
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100443 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000444 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100445 This enables support for systems based on the Hilscher NetX Soc
446
Russell King3b938be2007-05-12 11:25:44 +0100447config ARCH_IOP13XX
448 bool "IOP13xx-based"
449 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100450 select CPU_XSC3
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400451 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600452 select NEED_RET_TO_USER
Russell Kingb1b3f492012-10-06 17:12:25 +0100453 select PCI
454 select PLAT_IOP
455 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100456 help
457 Support for Intel's IOP13XX (XScale) family of processors.
458
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100459config ARCH_IOP32X
460 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100461 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100462 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000463 select CPU_XSCALE
Linus Walleije9004f52013-09-09 11:59:51 +0200464 select GPIO_IOP
Rob Herring13a50452012-02-07 09:28:22 -0600465 select NEED_RET_TO_USER
Russell Kingf7e68bb2005-05-05 14:49:01 +0100466 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100467 select PLAT_IOP
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000468 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100469 Support for Intel's 80219 and IOP32X (XScale) family of
470 processors.
471
472config ARCH_IOP33X
473 bool "IOP33x-based"
474 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100475 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000476 select CPU_XSCALE
Linus Walleije9004f52013-09-09 11:59:51 +0200477 select GPIO_IOP
Rob Herring13a50452012-02-07 09:28:22 -0600478 select NEED_RET_TO_USER
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100479 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100480 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100481 help
482 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700483
Russell King3b938be2007-05-12 11:25:44 +0100484config ARCH_IXP4XX
485 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100486 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500487 select ARCH_HAS_DMA_SET_COHERENT_MASK
Ben Dooksd10d2d42013-02-01 09:41:37 +0000488 select ARCH_SUPPORTS_BIG_ENDIAN
Russell Kingb1b3f492012-10-06 17:12:25 +0100489 select ARCH_REQUIRE_GPIOLIB
Russell King234b6ced2011-05-08 14:09:47 +0100490 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000491 select CPU_XSCALE
Russell Kingb1b3f492012-10-06 17:12:25 +0100492 select DMABOUNCE if PCI
Russell King3b938be2007-05-12 11:25:44 +0100493 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100494 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600495 select NEED_MACH_IO_H
Florian Fainelli9296d942013-04-09 14:29:26 +0200496 select USB_EHCI_BIG_ENDIAN_DESC
Russell King171b3f02013-09-12 21:24:42 +0100497 select USB_EHCI_BIG_ENDIAN_MMIO
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100498 help
Russell King3b938be2007-05-12 11:25:44 +0100499 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100500
Saeed Bisharaedabd382009-08-06 15:12:43 +0300501config ARCH_DOVE
502 bool "Marvell Dove"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300503 select ARCH_REQUIRE_GPIOLIB
Sebastian Hesselbarth756b2532013-05-02 19:56:12 +0100504 select CPU_PJ4
Saeed Bisharaedabd382009-08-06 15:12:43 +0300505 select GENERIC_CLOCKEVENTS
Russell King0f81bd42012-09-09 20:34:13 +0100506 select MIGHT_HAVE_PCI
Russell King171b3f02013-09-12 21:24:42 +0100507 select MVEBU_MBUS
Sebastian Hesselbarth9139acd2012-11-19 10:39:55 +0100508 select PINCTRL
509 select PINCTRL_DOVE
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200510 select PLAT_ORION_LEGACY
Russell King0f81bd42012-09-09 20:34:13 +0100511 select USB_ARCH_HAS_EHCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300512 help
513 Support for the Marvell Dove SoC 88AP510
514
Saeed Bishara651c74c2008-06-22 22:45:06 +0200515config ARCH_KIRKWOOD
516 bool "Marvell Kirkwood"
Andrew Lunn0e2ee0c2013-01-27 11:07:23 +0100517 select ARCH_HAS_CPUFREQ
Erik Benadaa8865652009-05-28 17:08:55 -0700518 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100519 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200520 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100521 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100522 select PCI
Jason Gunthorpe1dc831b2012-11-21 00:19:06 -0700523 select PCI_QUIRKS
Andrew Lunnf9e75922012-11-17 17:00:44 +0100524 select PINCTRL
525 select PINCTRL_KIRKWOOD
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200526 select PLAT_ORION_LEGACY
Saeed Bishara651c74c2008-06-22 22:45:06 +0200527 help
528 Support for the following Marvell Kirkwood series SoCs:
529 88F6180, 88F6192 and 88F6281.
530
Russell King788c9702009-04-26 14:21:59 +0100531config ARCH_MV78XX0
532 bool "Marvell MV78xx0"
Erik Benadaa8865652009-05-28 17:08:55 -0700533 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100534 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100535 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100536 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100537 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200538 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100539 help
540 Support for the following Marvell MV78xx0 series SoCs:
541 MV781x0, MV782x0.
542
543config ARCH_ORION5X
544 bool "Marvell Orion"
545 depends on MMU
Erik Benadaa8865652009-05-28 17:08:55 -0700546 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100547 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100548 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100549 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100550 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200551 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100552 help
553 Support for the following Marvell Orion 5x series SoCs:
554 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
555 Orion-2 (5281), Orion-1-90 (6183).
556
557config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500558 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100559 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100560 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100561 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100562 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100563 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800564 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800565 select IRQ_DOMAIN
Haojian Zhuang0f374562013-04-21 16:53:02 +0800566 select MULTI_IRQ_HANDLER
Axel Lin7c8f86a2012-11-28 14:42:35 +0800567 select PINCTRL
Russell King788c9702009-04-26 14:21:59 +0100568 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400569 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100570 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500571 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100572
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100573config ARCH_KS8695
574 bool "Micrel/Kendin KS8695"
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100575 select ARCH_REQUIRE_GPIOLIB
Linus Walleijc7e783d2012-08-29 20:27:22 +0200576 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100577 select CPU_ARM922T
Linus Walleijc7e783d2012-08-29 20:27:22 +0200578 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100579 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100580 help
581 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
582 System-on-Chip devices.
583
Russell King788c9702009-04-26 14:21:59 +0100584config ARCH_W90X900
585 bool "Nuvoton W90X900 CPU"
wanzongshunc52d3d62009-06-10 15:49:32 +0100586 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100587 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100588 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100589 select CPU_ARM926T
wanzongshun58b53692009-08-14 15:36:44 +0100590 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200591 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100592 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
593 At present, the w90x900 has been renamed nuc900, regarding
594 the ARM series product line, you can login the following
595 link address to know more.
596
597 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
598 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400599
Russell King93e22562012-10-12 14:20:52 +0100600config ARCH_LPC32XX
601 bool "NXP LPC32XX"
602 select ARCH_REQUIRE_GPIOLIB
603 select ARM_AMBA
Russell King40737232011-01-06 22:32:52 +0000604 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100605 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100606 select CPU_ARM926T
607 select GENERIC_CLOCKEVENTS
608 select HAVE_IDE
609 select HAVE_PWM
610 select USB_ARCH_HAS_OHCI
611 select USE_OF
612 help
613 Support for the NXP LPC32XX family of processors
614
Linus Torvalds1da177e2005-04-16 15:20:36 -0700615config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700616 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100617 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100618 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100619 select ARCH_MTD_XIP
620 select ARCH_REQUIRE_GPIOLIB
621 select ARM_CPU_SUSPEND if PM
622 select AUTO_ZRELADDR
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100623 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100624 select CLKSRC_MMIO
Eric Miao981d0f32007-07-24 01:22:43 +0100625 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800626 select GPIO_PXA
Russell Kingb1b3f492012-10-06 17:12:25 +0100627 select HAVE_IDE
628 select MULTI_IRQ_HANDLER
Eric Miaobd5ce432009-01-20 12:06:01 +0800629 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800630 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000631 help
eric miao2c8086a2007-09-11 19:13:17 -0700632 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700633
Russell King788c9702009-04-26 14:21:59 +0100634config ARCH_MSM
635 bool "Qualcomm MSM"
Pavel Machek923a0812010-06-02 11:11:12 -0700636 select ARCH_REQUIRE_GPIOLIB
Stephen Boydc6025202013-07-24 13:54:30 -0700637 select CLKSRC_OF if OF
Stephen Boyd8cc7f532013-06-17 10:43:19 -0700638 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100639 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800640 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800641 Support for Qualcomm MSM/QSD based systems. This runs on the
642 apps processor of the MSM/QSD and depends on a shared memory
643 interface to the modem processor which runs the baseband
644 stack and controls some vital subsystems
645 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800646
Magnus Dammc793c1b2010-02-05 11:14:49 +0000647config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900648 bool "Renesas SH-Mobile / R-Mobile"
Magnus Damm69469992013-06-10 18:46:47 +0900649 select ARM_PATCH_PHYS_VIRT
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900650 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100651 select GENERIC_CLOCKEVENTS
Stephen Boyd4c3ffff2013-02-27 15:28:14 -0800652 select HAVE_ARM_SCU if SMP
Stephen Boyda894fcc2013-02-15 16:02:20 -0800653 select HAVE_ARM_TWD if SMP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900654 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000655 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000656 select MIGHT_HAVE_CACHE_L2X0
Magnus Damm60f14352010-12-28 08:26:52 +0000657 select MULTI_IRQ_HANDLER
Russell Kingb1b3f492012-10-06 17:12:25 +0100658 select NO_IOPORT
Laurent Pinchart2cd3c922013-05-31 05:00:27 +0200659 select PINCTRL
Russell Kingb1b3f492012-10-06 17:12:25 +0100660 select PM_GENERIC_DOMAINS if PM
661 select SPARSE_IRQ
Magnus Dammc793c1b2010-02-05 11:14:49 +0000662 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900663 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000664
Linus Torvalds1da177e2005-04-16 15:20:36 -0700665config ARCH_RPC
666 bool "RiscPC"
667 select ARCH_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100668 select ARCH_MAY_HAVE_PC_FDC
Russell King07f841b2008-10-01 17:11:06 +0100669 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000670 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100671 select FIQ
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200672 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100673 select HAVE_PATA_PLATFORM
674 select ISA_DMA_API
Rob Herringc334bc12012-03-04 22:03:33 -0600675 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400676 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100677 select NO_IOPORT
Arnd Bergmannb4811ba2013-03-13 17:36:37 +0100678 select VIRT_TO_BUS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700679 help
680 On the Acorn Risc-PC, Linux can support the internal IDE disk and
681 CD-ROM interface, serial and parallel port, and the floppy drive.
682
683config ARCH_SA1100
684 bool "SA1100-based"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100685 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100686 select ARCH_MTD_XIP
Michael Buesch7444a722008-07-25 01:46:11 -0700687 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100688 select ARCH_SPARSEMEM_ENABLE
689 select CLKDEV_LOOKUP
690 select CLKSRC_MMIO
691 select CPU_FREQ
692 select CPU_SA1100
693 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200694 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100695 select ISA
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400696 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100697 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000698 help
699 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700700
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900701config ARCH_S3C24XX
702 bool "Samsung S3C24XX SoCs"
Ben Dooks9d56c022009-07-30 23:23:25 +0100703 select ARCH_HAS_CPUFREQ
Kukjin Kim53650432013-04-04 09:04:30 +0900704 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100705 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200706 select CLKSRC_SAMSUNG_PWM
Romain Naour7f78b6e2013-01-09 18:47:04 -0800707 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900708 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900709 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900710 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100711 select HAVE_S3C_RTC if RTC_CLASS
Heiko Stuebner17453dd2013-03-07 12:38:25 +0900712 select MULTI_IRQ_HANDLER
Rob Herring01464222012-08-28 13:06:41 -0500713 select NEED_MACH_GPIO_H
Rob Herringc334bc12012-03-04 22:03:33 -0600714 select NEED_MACH_IO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900715 select SAMSUNG_ATAGS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700716 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900717 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
718 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
719 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
720 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900721
Ben Dooksa08ab632008-10-21 14:06:39 +0100722config ARCH_S3C64XX
723 bool "Samsung S3C64XX"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100724 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900725 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100726 select ARM_VIC
727 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200728 select CLKSRC_SAMSUNG_PWM
Tomasz Figab69f4602013-08-26 02:00:38 +0900729 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100730 select CPU_V6
Romain Naour04a49b72013-01-09 18:47:04 -0800731 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900732 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900733 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900734 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100735 select HAVE_TCM
Rob Herring01464222012-08-28 13:06:41 -0500736 select NEED_MACH_GPIO_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100737 select NO_IOPORT
738 select PLAT_SAMSUNG
Tomasz Figa6e2d9e92013-10-06 09:06:27 +0900739 select PM_GENERIC_DOMAINS
Russell Kingb1b3f492012-10-06 17:12:25 +0100740 select S3C_DEV_NAND
741 select S3C_GPIO_TRACK
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900742 select SAMSUNG_ATAGS
Russell Kingb1b3f492012-10-06 17:12:25 +0100743 select SAMSUNG_GPIOLIB_4BIT
Tomasz Figa6e2d9e92013-10-06 09:06:27 +0900744 select SAMSUNG_WAKEMASK
Tomasz Figa88f59732013-06-17 23:45:37 +0900745 select SAMSUNG_WDT_RESET
Russell Kingb1b3f492012-10-06 17:12:25 +0100746 select USB_ARCH_HAS_OHCI
Ben Dooksa08ab632008-10-21 14:06:39 +0100747 help
748 Samsung S3C64XX series based systems
749
Kukjin Kim49b7a492010-09-07 15:47:18 +0900750config ARCH_S5P64X0
751 bool "Samsung S5P6440 S5P6450"
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900752 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200753 select CLKSRC_SAMSUNG_PWM
Russell Kingb1b3f492012-10-06 17:12:25 +0100754 select CPU_V6
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900755 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900756 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900757 select HAVE_S3C2410_I2C if I2C
Russell Kingb1b3f492012-10-06 17:12:25 +0100758 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim754961a2010-11-13 16:11:46 +0900759 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500760 select NEED_MACH_GPIO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900761 select SAMSUNG_ATAGS
Russell King171b3f02013-09-12 21:24:42 +0100762 select SAMSUNG_WDT_RESET
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900763 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900764 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
765 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900766
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200767config ARCH_S5PC100
768 bool "Samsung S5PC100"
Kukjin Kim53650432013-04-04 09:04:30 +0900769 select ARCH_REQUIRE_GPIOLIB
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900770 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200771 select CLKSRC_SAMSUNG_PWM
Byungho Min5a7652f2009-06-23 21:39:42 +0900772 select CPU_V7
Romain Naour6a5a2e32013-01-09 18:47:04 -0800773 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900774 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900775 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900776 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100777 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500778 select NEED_MACH_GPIO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900779 select SAMSUNG_ATAGS
Russell King171b3f02013-09-12 21:24:42 +0100780 select SAMSUNG_WDT_RESET
Byungho Min5a7652f2009-06-23 21:39:42 +0900781 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200782 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900783
Kukjin Kim170f4e42010-02-24 16:40:44 +0900784config ARCH_S5PV210
785 bool "Samsung S5PV210/S5PC110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100786 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900787 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100788 select ARCH_SPARSEMEM_ENABLE
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900789 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200790 select CLKSRC_SAMSUNG_PWM
Russell Kingb1b3f492012-10-06 17:12:25 +0100791 select CPU_V7
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900792 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900793 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900794 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900795 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100796 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500797 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400798 select NEED_MACH_MEMORY_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900799 select SAMSUNG_ATAGS
Kukjin Kim170f4e42010-02-24 16:40:44 +0900800 help
801 Samsung S5PV210/S5PC110 series based systems
802
Kukjin Kim83014572011-11-06 13:54:56 +0900803config ARCH_EXYNOS
Russell King93e22562012-10-12 14:20:52 +0100804 bool "Samsung EXYNOS"
Russell Kingb1b3f492012-10-06 17:12:25 +0100805 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900806 select ARCH_HAS_HOLES_MEMORYMODEL
Tomasz Figae245f962013-06-19 01:26:42 +0900807 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100808 select ARCH_SPARSEMEM_ENABLE
Tomasz Figae245f962013-06-19 01:26:42 +0900809 select ARM_GIC
Olof Johansson340fcb52013-04-26 11:47:45 -0700810 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100811 select CPU_V7
812 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900813 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900814 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100815 select HAVE_S3C_RTC if RTC_CLASS
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400816 select NEED_MACH_MEMORY_H
Tomasz Figa6e726ea2013-06-15 09:28:55 +0900817 select SPARSE_IRQ
Tomasz Figaf8b1ac02013-06-15 09:01:11 +0900818 select USE_OF
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900819 help
Kukjin Kim83014572011-11-06 13:54:56 +0900820 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900821
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100822config ARCH_DAVINCI
823 bool "TI DaVinci"
Russell Kingb1b3f492012-10-06 17:12:25 +0100824 select ARCH_HAS_HOLES_MEMORYMODEL
David Brownelldce11152008-09-07 23:41:04 -0700825 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100826 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700827 select GENERIC_ALLOCATOR
Russell Kingb1b3f492012-10-06 17:12:25 +0100828 select GENERIC_CLOCKEVENTS
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100829 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100830 select HAVE_IDE
Matt Porter3ad7a422013-03-06 11:15:31 -0500831 select TI_PRIV_EDMA
Sekhar Nori689e3312012-08-28 15:27:52 +0530832 select USE_OF
Russell Kingb1b3f492012-10-06 17:12:25 +0100833 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100834 help
835 Support for TI's DaVinci platform.
836
Tony Lindgrena0694862013-01-11 11:24:20 -0800837config ARCH_OMAP1
838 bool "TI OMAP1"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600839 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100840 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100841 select ARCH_HAS_HOLES_MEMORYMODEL
Tony Lindgrena0694862013-01-11 11:24:20 -0800842 select ARCH_OMAP
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100843 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200844 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100845 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100846 select GENERIC_CLOCKEVENTS
Tony Lindgrena0694862013-01-11 11:24:20 -0800847 select GENERIC_IRQ_CHIP
Tony Lindgrena0694862013-01-11 11:24:20 -0800848 select HAVE_IDE
849 select IRQ_DOMAIN
850 select NEED_MACH_IO_H if PCCARD
851 select NEED_MACH_MEMORY_H
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100852 help
Tony Lindgrena0694862013-01-11 11:24:20 -0800853 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
Binghua Duan02c981c2011-07-08 17:40:12 +0800854
Linus Torvalds1da177e2005-04-16 15:20:36 -0700855endchoice
856
Rob Herring387798b2012-09-06 13:41:12 -0500857menu "Multiple platform selection"
858 depends on ARCH_MULTIPLATFORM
859
860comment "CPU Core family selection"
861
Rob Herring387798b2012-09-06 13:41:12 -0500862config ARCH_MULTI_V4T
863 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500864 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100865 select ARCH_MULTI_V4_V5
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200866 select CPU_ARM920T if !(CPU_ARM7TDMI || CPU_ARM720T || \
867 CPU_ARM740T || CPU_ARM9TDMI || CPU_ARM922T || \
868 CPU_ARM925T || CPU_ARM940T)
Rob Herring387798b2012-09-06 13:41:12 -0500869
870config ARCH_MULTI_V5
871 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500872 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100873 select ARCH_MULTI_V4_V5
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200874 select CPU_ARM926T if (!CPU_ARM946E || CPU_ARM1020 || \
875 CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || \
876 CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_FEROCEON)
Rob Herring387798b2012-09-06 13:41:12 -0500877
878config ARCH_MULTI_V4_V5
879 bool
880
881config ARCH_MULTI_V6
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800882 bool "ARMv6 based platforms (ARM11)"
Rob Herring387798b2012-09-06 13:41:12 -0500883 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100884 select CPU_V6
Rob Herring387798b2012-09-06 13:41:12 -0500885
886config ARCH_MULTI_V7
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800887 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -0500888 default y
889 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100890 select CPU_V7
Rob Herring387798b2012-09-06 13:41:12 -0500891
892config ARCH_MULTI_V6_V7
893 bool
894
895config ARCH_MULTI_CPU_AUTO
896 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
897 select ARCH_MULTI_V5
898
899endmenu
900
Russell Kingccf50e22010-03-15 19:03:06 +0000901#
902# This is sorted alphabetically by mach-* pathname. However, plat-*
903# Kconfigs may be included either alphabetically (according to the
904# plat- suffix) or along side the corresponding mach-* source.
905#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +0200906source "arch/arm/mach-mvebu/Kconfig"
907
Russell King95b8f202010-01-14 11:43:54 +0000908source "arch/arm/mach-at91/Kconfig"
909
Christian Daudt8ac49e02012-11-19 09:46:10 -0800910source "arch/arm/mach-bcm/Kconfig"
911
Stephen Warrenf1ac9222013-03-11 22:40:18 -0600912source "arch/arm/mach-bcm2835/Kconfig"
913
Linus Torvalds1da177e2005-04-16 15:20:36 -0700914source "arch/arm/mach-clps711x/Kconfig"
915
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300916source "arch/arm/mach-cns3xxx/Kconfig"
917
Russell King95b8f202010-01-14 11:43:54 +0000918source "arch/arm/mach-davinci/Kconfig"
919
920source "arch/arm/mach-dove/Kconfig"
921
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000922source "arch/arm/mach-ep93xx/Kconfig"
923
Linus Torvalds1da177e2005-04-16 15:20:36 -0700924source "arch/arm/mach-footbridge/Kconfig"
925
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200926source "arch/arm/mach-gemini/Kconfig"
927
Rob Herring387798b2012-09-06 13:41:12 -0500928source "arch/arm/mach-highbank/Kconfig"
929
Linus Torvalds1da177e2005-04-16 15:20:36 -0700930source "arch/arm/mach-integrator/Kconfig"
931
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100932source "arch/arm/mach-iop32x/Kconfig"
933
934source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700935
Dan Williams285f5fa2006-12-07 02:59:39 +0100936source "arch/arm/mach-iop13xx/Kconfig"
937
Linus Torvalds1da177e2005-04-16 15:20:36 -0700938source "arch/arm/mach-ixp4xx/Kconfig"
939
Santosh Shilimkar828989a2013-06-10 11:27:13 -0400940source "arch/arm/mach-keystone/Kconfig"
941
Russell King95b8f202010-01-14 11:43:54 +0000942source "arch/arm/mach-kirkwood/Kconfig"
943
944source "arch/arm/mach-ks8695/Kconfig"
945
Russell King95b8f202010-01-14 11:43:54 +0000946source "arch/arm/mach-msm/Kconfig"
947
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200948source "arch/arm/mach-mv78xx0/Kconfig"
949
Shawn Guo3995eb82012-09-13 19:48:07 +0800950source "arch/arm/mach-imx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700951
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800952source "arch/arm/mach-mxs/Kconfig"
953
Russell King95b8f202010-01-14 11:43:54 +0000954source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800955
Russell King95b8f202010-01-14 11:43:54 +0000956source "arch/arm/mach-nomadik/Kconfig"
Russell King95b8f202010-01-14 11:43:54 +0000957
Daniel Tang9851ca52013-06-11 18:40:17 +1000958source "arch/arm/mach-nspire/Kconfig"
959
Tony Lindgrend48af152005-07-10 19:58:17 +0100960source "arch/arm/plat-omap/Kconfig"
961
962source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700963
Tony Lindgren1dbae812005-11-10 14:26:51 +0000964source "arch/arm/mach-omap2/Kconfig"
965
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400966source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400967
Rob Herring387798b2012-09-06 13:41:12 -0500968source "arch/arm/mach-picoxcell/Kconfig"
969
Russell King95b8f202010-01-14 11:43:54 +0000970source "arch/arm/mach-pxa/Kconfig"
971source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700972
Russell King95b8f202010-01-14 11:43:54 +0000973source "arch/arm/mach-mmp/Kconfig"
974
975source "arch/arm/mach-realview/Kconfig"
976
Heiko Stuebnerd63dc052013-06-02 23:09:41 +0200977source "arch/arm/mach-rockchip/Kconfig"
978
Russell King95b8f202010-01-14 11:43:54 +0000979source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300980
Ben Dookscf383672009-11-10 00:14:58 +0000981source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100982
Rob Herring387798b2012-09-06 13:41:12 -0500983source "arch/arm/mach-socfpga/Kconfig"
984
Arnd Bergmanna7ed0992012-12-02 15:12:47 +0100985source "arch/arm/mach-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100986
Srinivas Kandagatla65ebcc12013-06-25 12:15:10 +0100987source "arch/arm/mach-sti/Kconfig"
988
Kukjin Kim85fd6d62012-02-06 09:38:19 +0900989source "arch/arm/mach-s3c24xx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700990
Ben Dooks431107e2010-01-26 10:11:04 +0900991source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100992
Kukjin Kim49b7a492010-09-07 15:47:18 +0900993source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900994
Byungho Min5a7652f2009-06-23 21:39:42 +0900995source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900996
Kukjin Kim170f4e42010-02-24 16:40:44 +0900997source "arch/arm/mach-s5pv210/Kconfig"
998
Kukjin Kim83014572011-11-06 13:54:56 +0900999source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001000
Russell King882d01f2010-03-02 23:40:15 +00001001source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001002
Maxime Ripard3b526342012-11-08 12:40:16 +01001003source "arch/arm/mach-sunxi/Kconfig"
1004
Barry Song156a0992012-08-23 13:41:58 +08001005source "arch/arm/mach-prima2/Kconfig"
1006
Erik Gillingc5f80062010-01-21 16:53:02 -08001007source "arch/arm/mach-tegra/Kconfig"
1008
Russell King95b8f202010-01-14 11:43:54 +00001009source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001010
Russell King95b8f202010-01-14 11:43:54 +00001011source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001012
1013source "arch/arm/mach-versatile/Kconfig"
1014
Russell Kingceade892010-02-11 21:44:53 +00001015source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001016source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001017
Marc Zyngier2a0ba732012-10-05 13:47:39 +01001018source "arch/arm/mach-virt/Kconfig"
1019
Tony Prisk6f35f9a2012-10-11 20:13:09 +13001020source "arch/arm/mach-vt8500/Kconfig"
1021
wanzongshun7ec80dd2008-12-03 03:55:38 +01001022source "arch/arm/mach-w90x900/Kconfig"
1023
Josh Cartwright9a45eb62012-11-19 11:38:29 -06001024source "arch/arm/mach-zynq/Kconfig"
1025
Linus Torvalds1da177e2005-04-16 15:20:36 -07001026# Definitions to make life easier
1027config ARCH_ACORN
1028 bool
1029
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001030config PLAT_IOP
1031 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001032 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001033
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001034config PLAT_ORION
1035 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001036 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +01001037 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001038 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +02001039 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001040
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +02001041config PLAT_ORION_LEGACY
1042 bool
1043 select PLAT_ORION
1044
Eric Miaobd5ce432009-01-20 12:06:01 +08001045config PLAT_PXA
1046 bool
1047
Russell Kingf4b8b312010-01-14 12:48:06 +00001048config PLAT_VERSATILE
1049 bool
1050
Russell Kinge3887712010-01-14 13:30:16 +00001051config ARM_TIMER_SP804
1052 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001053 select CLKSRC_MMIO
Rob Herring7a0eca72013-03-25 11:23:52 -05001054 select CLKSRC_OF if OF
Russell Kinge3887712010-01-14 13:30:16 +00001055
Linus Torvalds1da177e2005-04-16 15:20:36 -07001056source arch/arm/mm/Kconfig
1057
Russell King958cab02011-12-11 10:04:00 +00001058config ARM_NR_BANKS
1059 int
1060 default 16 if ARCH_EP93XX
1061 default 8
1062
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001063config IWMMXT
Russell King698613b2013-04-03 16:33:26 +01001064 bool "Enable iWMMXt support" if !CPU_PJ4
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001065 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
Russell King698613b2013-04-03 16:33:26 +01001066 default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001067 help
1068 Enable support for iWMMXt context switching at run time if
1069 running on a CPU that supports it.
1070
eric miao52108642010-12-13 09:42:34 +01001071config MULTI_IRQ_HANDLER
1072 bool
1073 help
1074 Allow each machine to specify it's own IRQ handler at run time.
1075
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001076if !MMU
1077source "arch/arm/Kconfig-nommu"
1078endif
1079
Gregory CLEMENT3e0a07f2013-06-23 10:17:11 +01001080config PJ4B_ERRATA_4742
1081 bool "PJ4B Errata 4742: IDLE Wake Up Commands can Cause the CPU Core to Cease Operation"
1082 depends on CPU_PJ4B && MACH_ARMADA_370
1083 default y
1084 help
1085 When coming out of either a Wait for Interrupt (WFI) or a Wait for
1086 Event (WFE) IDLE states, a specific timing sensitivity exists between
1087 the retiring WFI/WFE instructions and the newly issued subsequent
1088 instructions. This sensitivity can result in a CPU hang scenario.
1089 Workaround:
1090 The software must insert either a Data Synchronization Barrier (DSB)
1091 or Data Memory Barrier (DMB) command immediately after the WFI/WFE
1092 instruction
1093
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001094config ARM_ERRATA_326103
1095 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1096 depends on CPU_V6
1097 help
1098 Executing a SWP instruction to read-only memory does not set bit 11
1099 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1100 treat the access as a read, preventing a COW from occurring and
1101 causing the faulting task to livelock.
1102
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001103config ARM_ERRATA_411920
1104 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001105 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001106 help
1107 Invalidation of the Instruction Cache operation can
1108 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1109 It does not affect the MPCore. This option enables the ARM Ltd.
1110 recommended workaround.
1111
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001112config ARM_ERRATA_430973
1113 bool "ARM errata: Stale prediction on replaced interworking branch"
1114 depends on CPU_V7
1115 help
1116 This option enables the workaround for the 430973 Cortex-A8
1117 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1118 interworking branch is replaced with another code sequence at the
1119 same virtual address, whether due to self-modifying code or virtual
1120 to physical address re-mapping, Cortex-A8 does not recover from the
1121 stale interworking branch prediction. This results in Cortex-A8
1122 executing the new code sequence in the incorrect ARM or Thumb state.
1123 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1124 and also flushes the branch target cache at every context switch.
1125 Note that setting specific bits in the ACTLR register may not be
1126 available in non-secure mode.
1127
Catalin Marinas855c5512009-04-30 17:06:15 +01001128config ARM_ERRATA_458693
1129 bool "ARM errata: Processor deadlock when a false hazard is created"
1130 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001131 depends on !ARCH_MULTIPLATFORM
Catalin Marinas855c5512009-04-30 17:06:15 +01001132 help
1133 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1134 erratum. For very specific sequences of memory operations, it is
1135 possible for a hazard condition intended for a cache line to instead
1136 be incorrectly associated with a different cache line. This false
1137 hazard might then cause a processor deadlock. The workaround enables
1138 the L1 caching of the NEON accesses and disables the PLD instruction
1139 in the ACTLR register. Note that setting specific bits in the ACTLR
1140 register may not be available in non-secure mode.
1141
Catalin Marinas0516e462009-04-30 17:06:20 +01001142config ARM_ERRATA_460075
1143 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1144 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001145 depends on !ARCH_MULTIPLATFORM
Catalin Marinas0516e462009-04-30 17:06:20 +01001146 help
1147 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1148 erratum. Any asynchronous access to the L2 cache may encounter a
1149 situation in which recent store transactions to the L2 cache are lost
1150 and overwritten with stale memory contents from external memory. The
1151 workaround disables the write-allocate mode for the L2 cache via the
1152 ACTLR register. Note that setting specific bits in the ACTLR register
1153 may not be available in non-secure mode.
1154
Will Deacon9f050272010-09-14 09:51:43 +01001155config ARM_ERRATA_742230
1156 bool "ARM errata: DMB operation may be faulty"
1157 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001158 depends on !ARCH_MULTIPLATFORM
Will Deacon9f050272010-09-14 09:51:43 +01001159 help
1160 This option enables the workaround for the 742230 Cortex-A9
1161 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1162 between two write operations may not ensure the correct visibility
1163 ordering of the two writes. This workaround sets a specific bit in
1164 the diagnostic register of the Cortex-A9 which causes the DMB
1165 instruction to behave as a DSB, ensuring the correct behaviour of
1166 the two writes.
1167
Will Deacona672e992010-09-14 09:53:02 +01001168config ARM_ERRATA_742231
1169 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1170 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001171 depends on !ARCH_MULTIPLATFORM
Will Deacona672e992010-09-14 09:53:02 +01001172 help
1173 This option enables the workaround for the 742231 Cortex-A9
1174 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1175 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1176 accessing some data located in the same cache line, may get corrupted
1177 data due to bad handling of the address hazard when the line gets
1178 replaced from one of the CPUs at the same time as another CPU is
1179 accessing it. This workaround sets specific bits in the diagnostic
1180 register of the Cortex-A9 which reduces the linefill issuing
1181 capabilities of the processor.
1182
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001183config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001184 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001185 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001186 help
1187 The PL310 L2 cache controller implements three types of Clean &
1188 Invalidate maintenance operations: by Physical Address
1189 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1190 They are architecturally defined to behave as the execution of a
1191 clean operation followed immediately by an invalidate operation,
1192 both performing to the same memory location. This functionality
1193 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001194 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001195
Jon Medhurst69155792013-06-07 10:35:35 +01001196config ARM_ERRATA_643719
1197 bool "ARM errata: LoUIS bit field in CLIDR register is incorrect"
1198 depends on CPU_V7 && SMP
1199 help
1200 This option enables the workaround for the 643719 Cortex-A9 (prior to
1201 r1p0) erratum. On affected cores the LoUIS bit field of the CLIDR
1202 register returns zero when it should return one. The workaround
1203 corrects this value, ensuring cache maintenance operations which use
1204 it behave as intended and avoiding data corruption.
1205
Will Deaconcdf357f2010-08-05 11:20:51 +01001206config ARM_ERRATA_720789
1207 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001208 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001209 help
1210 This option enables the workaround for the 720789 Cortex-A9 (prior to
1211 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1212 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1213 As a consequence of this erratum, some TLB entries which should be
1214 invalidated are not, resulting in an incoherency in the system page
1215 tables. The workaround changes the TLB flushing routines to invalidate
1216 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001217
Russell King1f0090a2011-03-16 23:35:25 +00001218config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001219 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001220 depends on CACHE_L2X0
1221 help
1222 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1223 operation (offset 0x7FC). This operation runs in background so that
1224 PL310 can handle normal accesses while it is in progress. Under very
1225 rare circumstances, due to this erratum, write data can be lost when
1226 PL310 treats a cacheable write transaction during a Clean &
1227 Invalidate by Way operation.
1228
Will Deacon475d92f2010-09-28 14:02:02 +01001229config ARM_ERRATA_743622
1230 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1231 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001232 depends on !ARCH_MULTIPLATFORM
Will Deacon475d92f2010-09-28 14:02:02 +01001233 help
1234 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001235 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001236 optimisation in the Cortex-A9 Store Buffer may lead to data
1237 corruption. This workaround sets a specific bit in the diagnostic
1238 register of the Cortex-A9 which disables the Store Buffer
1239 optimisation, preventing the defect from occurring. This has no
1240 visible impact on the overall performance or power consumption of the
1241 processor.
1242
Will Deacon9a27c272011-02-18 16:36:35 +01001243config ARM_ERRATA_751472
1244 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001245 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001246 depends on !ARCH_MULTIPLATFORM
Will Deacon9a27c272011-02-18 16:36:35 +01001247 help
1248 This option enables the workaround for the 751472 Cortex-A9 (prior
1249 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1250 completion of a following broadcasted operation if the second
1251 operation is received by a CPU before the ICIALLUIS has completed,
1252 potentially leading to corrupted entries in the cache or TLB.
1253
Will Deaconfa0ce402011-11-14 17:24:57 +01001254config PL310_ERRATA_753970
1255 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001256 depends on CACHE_PL310
1257 help
1258 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1259
1260 Under some condition the effect of cache sync operation on
1261 the store buffer still remains when the operation completes.
1262 This means that the store buffer is always asked to drain and
1263 this prevents it from merging any further writes. The workaround
1264 is to replace the normal offset of cache sync operation (0x730)
1265 by another offset targeting an unmapped PL310 register 0x740.
1266 This has the same effect as the cache sync operation: store buffer
1267 drain and waiting for all buffers empty.
1268
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001269config ARM_ERRATA_754322
1270 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1271 depends on CPU_V7
1272 help
1273 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1274 r3p*) erratum. A speculative memory access may cause a page table walk
1275 which starts prior to an ASID switch but completes afterwards. This
1276 can populate the micro-TLB with a stale entry which may be hit with
1277 the new ASID. This workaround places two dsb instructions in the mm
1278 switching code so that no page table walks can cross the ASID switch.
1279
Will Deacon5dab26af2011-03-04 12:38:54 +01001280config ARM_ERRATA_754327
1281 bool "ARM errata: no automatic Store Buffer drain"
1282 depends on CPU_V7 && SMP
1283 help
1284 This option enables the workaround for the 754327 Cortex-A9 (prior to
1285 r2p0) erratum. The Store Buffer does not have any automatic draining
1286 mechanism and therefore a livelock may occur if an external agent
1287 continuously polls a memory location waiting to observe an update.
1288 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1289 written polling loops from denying visibility of updates to memory.
1290
Catalin Marinas145e10e2011-08-15 11:04:41 +01001291config ARM_ERRATA_364296
1292 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
Fabio Estevamfd832472013-07-09 18:34:01 +01001293 depends on CPU_V6
Catalin Marinas145e10e2011-08-15 11:04:41 +01001294 help
1295 This options enables the workaround for the 364296 ARM1136
1296 r0p2 erratum (possible cache data corruption with
1297 hit-under-miss enabled). It sets the undocumented bit 31 in
1298 the auxiliary control register and the FI bit in the control
1299 register, thus disabling hit-under-miss without putting the
1300 processor into full low interrupt latency mode. ARM11MPCore
1301 is not affected.
1302
Will Deaconf630c1b2011-09-15 11:45:15 +01001303config ARM_ERRATA_764369
1304 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1305 depends on CPU_V7 && SMP
1306 help
1307 This option enables the workaround for erratum 764369
1308 affecting Cortex-A9 MPCore with two or more processors (all
1309 current revisions). Under certain timing circumstances, a data
1310 cache line maintenance operation by MVA targeting an Inner
1311 Shareable memory region may fail to proceed up to either the
1312 Point of Coherency or to the Point of Unification of the
1313 system. This workaround adds a DSB instruction before the
1314 relevant cache maintenance functions and sets a specific bit
1315 in the diagnostic control register of the SCU.
1316
Will Deacon11ed0ba2011-11-14 17:24:58 +01001317config PL310_ERRATA_769419
1318 bool "PL310 errata: no automatic Store Buffer drain"
1319 depends on CACHE_L2X0
1320 help
1321 On revisions of the PL310 prior to r3p2, the Store Buffer does
1322 not automatically drain. This can cause normal, non-cacheable
1323 writes to be retained when the memory system is idle, leading
1324 to suboptimal I/O performance for drivers using coherent DMA.
1325 This option adds a write barrier to the cpu_idle loop so that,
1326 on systems with an outer cache, the store buffer is drained
1327 explicitly.
1328
Simon Horman7253b852012-09-28 02:12:45 +01001329config ARM_ERRATA_775420
1330 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1331 depends on CPU_V7
1332 help
1333 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1334 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1335 operation aborts with MMU exception, it might cause the processor
1336 to deadlock. This workaround puts DSB before executing ISB if
1337 an abort may occur on cache maintenance.
1338
Catalin Marinas93dc6882013-03-26 23:35:04 +01001339config ARM_ERRATA_798181
1340 bool "ARM errata: TLBI/DSB failure on Cortex-A15"
1341 depends on CPU_V7 && SMP
1342 help
1343 On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
1344 adequately shooting down all use of the old entries. This
1345 option enables the Linux kernel workaround for this erratum
1346 which sends an IPI to the CPUs that are running the same ASID
1347 as the one being invalidated.
1348
Will Deacon84b65042013-08-20 17:29:55 +01001349config ARM_ERRATA_773022
1350 bool "ARM errata: incorrect instructions may be executed from loop buffer"
1351 depends on CPU_V7
1352 help
1353 This option enables the workaround for the 773022 Cortex-A15
1354 (up to r0p4) erratum. In certain rare sequences of code, the
1355 loop buffer may deliver incorrect instructions. This
1356 workaround disables the loop buffer to avoid the erratum.
1357
Linus Torvalds1da177e2005-04-16 15:20:36 -07001358endmenu
1359
1360source "arch/arm/common/Kconfig"
1361
Linus Torvalds1da177e2005-04-16 15:20:36 -07001362menu "Bus support"
1363
1364config ARM_AMBA
1365 bool
1366
1367config ISA
1368 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001369 help
1370 Find out whether you have ISA slots on your motherboard. ISA is the
1371 name of a bus system, i.e. the way the CPU talks to the other stuff
1372 inside your box. Other bus systems are PCI, EISA, MicroChannel
1373 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1374 newer boards don't support it. If you have ISA, say Y, otherwise N.
1375
Russell King065909b2006-01-04 15:44:16 +00001376# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001377config ISA_DMA
1378 bool
Russell King065909b2006-01-04 15:44:16 +00001379 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001380
Russell King065909b2006-01-04 15:44:16 +00001381# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001382config ISA_DMA_API
1383 bool
Al Viro5cae8412005-05-04 05:39:22 +01001384
Linus Torvalds1da177e2005-04-16 15:20:36 -07001385config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001386 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001387 help
1388 Find out whether you have a PCI motherboard. PCI is the name of a
1389 bus system, i.e. the way the CPU talks to the other stuff inside
1390 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1391 VESA. If you have PCI, say Y, otherwise N.
1392
Anton Vorontsov52882172010-04-19 13:20:49 +01001393config PCI_DOMAINS
1394 bool
1395 depends on PCI
1396
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001397config PCI_NANOENGINE
1398 bool "BSE nanoEngine PCI support"
1399 depends on SA1100_NANOENGINE
1400 help
1401 Enable PCI on the BSE nanoEngine board.
1402
Matthew Wilcox36e23592007-07-10 10:54:40 -06001403config PCI_SYSCALL
1404 def_bool PCI
1405
Mike Rapoporta0113a92007-11-25 08:55:34 +01001406config PCI_HOST_ITE8152
1407 bool
1408 depends on PCI && MACH_ARMCORE
1409 default y
1410 select DMABOUNCE
1411
Linus Torvalds1da177e2005-04-16 15:20:36 -07001412source "drivers/pci/Kconfig"
Jingoo Han3f06d152013-06-21 16:25:29 +09001413source "drivers/pci/pcie/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001414
1415source "drivers/pcmcia/Kconfig"
1416
1417endmenu
1418
1419menu "Kernel Features"
1420
Dave Martin3b556582011-12-07 15:38:04 +00001421config HAVE_SMP
1422 bool
1423 help
1424 This option should be selected by machines which have an SMP-
1425 capable CPU.
1426
1427 The only effect of this option is to make the SMP-related
1428 options available to the user for configuration.
1429
Linus Torvalds1da177e2005-04-16 15:20:36 -07001430config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001431 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001432 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001433 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001434 depends on HAVE_SMP
Jonathan Austin801bb212013-02-22 18:56:04 +00001435 depends on MMU || ARM_MPU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001436 help
1437 This enables support for systems with more than one CPU. If you have
1438 a system with only one CPU, like most personal computers, say N. If
1439 you have a system with more than one CPU, say Y.
1440
1441 If you say N here, the kernel will run on single and multiprocessor
1442 machines, but will use only one CPU of a multiprocessor machine. If
1443 you say Y here, the kernel will run on many, but not all, single
1444 processor machines. On a single processor machine, the kernel will
1445 run faster if you say N here.
1446
Paul Bolle395cf962011-08-15 02:02:26 +02001447 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001448 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001449 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001450
1451 If you don't know what to do here, say N.
1452
Russell Kingf00ec482010-09-04 10:47:48 +01001453config SMP_ON_UP
1454 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
Jonathan Austin801bb212013-02-22 18:56:04 +00001455 depends on SMP && !XIP_KERNEL && MMU
Russell Kingf00ec482010-09-04 10:47:48 +01001456 default y
1457 help
1458 SMP kernels contain instructions which fail on non-SMP processors.
1459 Enabling this option allows the kernel to modify itself to make
1460 these instructions safe. Disabling it allows about 1K of space
1461 savings.
1462
1463 If you don't know what to do here, say Y.
1464
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001465config ARM_CPU_TOPOLOGY
1466 bool "Support cpu topology definition"
1467 depends on SMP && CPU_V7
1468 default y
1469 help
1470 Support ARM cpu topology definition. The MPIDR register defines
1471 affinity between processors which is then used to describe the cpu
1472 topology of an ARM System.
1473
1474config SCHED_MC
1475 bool "Multi-core scheduler support"
1476 depends on ARM_CPU_TOPOLOGY
1477 help
1478 Multi-core scheduler support improves the CPU scheduler's decision
1479 making when dealing with multi-core CPU chips at a cost of slightly
1480 increased overhead in some places. If unsure say N here.
1481
1482config SCHED_SMT
1483 bool "SMT scheduler support"
1484 depends on ARM_CPU_TOPOLOGY
1485 help
1486 Improves the CPU scheduler's decision making when dealing with
1487 MultiThreading at a cost of slightly increased overhead in some
1488 places. If unsure say N here.
1489
Russell Kinga8cbcd92009-05-16 11:51:14 +01001490config HAVE_ARM_SCU
1491 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001492 help
1493 This option enables support for the ARM system coherency unit
1494
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001495config HAVE_ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001496 bool "Architected timer support"
1497 depends on CPU_V7
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001498 select ARM_ARCH_TIMER
Will Deacon0c4034622013-11-19 15:46:17 +01001499 select GENERIC_CLOCKEVENTS
Marc Zyngier022c03a2012-01-11 17:25:17 +00001500 help
1501 This option enables support for the ARM architected timer
1502
Russell Kingf32f4ce2009-05-16 12:14:21 +01001503config HAVE_ARM_TWD
1504 bool
1505 depends on SMP
Rob Herringda4a6862013-02-06 21:17:47 -06001506 select CLKSRC_OF if OF
Russell Kingf32f4ce2009-05-16 12:14:21 +01001507 help
1508 This options enables support for the ARM timer and watchdog unit
1509
Nicolas Pitree8db2882012-04-12 02:45:22 -04001510config MCPM
1511 bool "Multi-Cluster Power Management"
1512 depends on CPU_V7 && SMP
1513 help
1514 This option provides the common power management infrastructure
1515 for (multi-)cluster based systems, such as big.LITTLE based
1516 systems.
1517
Nicolas Pitre1c33be52012-04-12 02:56:10 -04001518config BIG_LITTLE
1519 bool "big.LITTLE support (Experimental)"
1520 depends on CPU_V7 && SMP
1521 select MCPM
1522 help
1523 This option enables support selections for the big.LITTLE
1524 system architecture.
1525
1526config BL_SWITCHER
1527 bool "big.LITTLE switcher support"
1528 depends on BIG_LITTLE && MCPM && HOTPLUG_CPU
1529 select CPU_PM
1530 select ARM_CPU_SUSPEND
1531 help
1532 The big.LITTLE "switcher" provides the core functionality to
1533 transparently handle transition between a cluster of A15's
1534 and a cluster of A7's in a big.LITTLE system.
1535
Nicolas Pitreb22537c2012-04-12 03:04:28 -04001536config BL_SWITCHER_DUMMY_IF
1537 tristate "Simple big.LITTLE switcher user interface"
1538 depends on BL_SWITCHER && DEBUG_KERNEL
1539 help
1540 This is a simple and dummy char dev interface to control
1541 the big.LITTLE switcher core code. It is meant for
1542 debugging purposes only.
1543
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001544choice
1545 prompt "Memory split"
1546 default VMSPLIT_3G
1547 help
1548 Select the desired split between kernel and user memory.
1549
1550 If you are not absolutely sure what you are doing, leave this
1551 option alone!
1552
1553 config VMSPLIT_3G
1554 bool "3G/1G user/kernel split"
1555 config VMSPLIT_2G
1556 bool "2G/2G user/kernel split"
1557 config VMSPLIT_1G
1558 bool "1G/3G user/kernel split"
1559endchoice
1560
1561config PAGE_OFFSET
1562 hex
1563 default 0x40000000 if VMSPLIT_1G
1564 default 0x80000000 if VMSPLIT_2G
1565 default 0xC0000000
1566
Linus Torvalds1da177e2005-04-16 15:20:36 -07001567config NR_CPUS
1568 int "Maximum number of CPUs (2-32)"
1569 range 2 32
1570 depends on SMP
1571 default "4"
1572
Russell Kinga054a812005-11-02 22:24:33 +00001573config HOTPLUG_CPU
Russell King00b7ded2012-10-22 22:54:30 +01001574 bool "Support for hot-pluggable CPUs"
Stephen Rothwell40b31362013-05-21 13:49:35 +10001575 depends on SMP
Russell Kinga054a812005-11-02 22:24:33 +00001576 help
1577 Say Y here to experiment with turning CPUs off and on. CPUs
1578 can be controlled through /sys/devices/system/cpu.
1579
Will Deacon2bdd4242012-12-12 19:20:52 +00001580config ARM_PSCI
1581 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1582 depends on CPU_V7
1583 help
1584 Say Y here if you want Linux to communicate with system firmware
1585 implementing the PSCI specification for CPU-centric power
1586 management operations described in ARM document number ARM DEN
1587 0022A ("Power State Coordination Interface System Software on
1588 ARM processors").
1589
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001590# The GPIO number here must be sorted by descending number. In case of
1591# a multiplatform kernel, we just want the highest value required by the
1592# selected platforms.
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001593config ARCH_NR_GPIO
1594 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001595 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
R Sricharan6d0fc192013-02-07 17:43:35 +05301596 default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || SOC_DRA7XX
Olof Johansson06b851e2013-04-02 18:33:58 -07001597 default 392 if ARCH_U8500
Tony Prisk01bb9142013-03-09 18:22:30 +13001598 default 352 if ARCH_VT8500
1599 default 288 if ARCH_SUNXI
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001600 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001601 default 0
1602 help
1603 Maximum number of GPIOs in the system.
1604
1605 If unsure, leave the default value.
1606
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001607source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001608
Russell Kingc9218b12013-04-27 23:31:10 +01001609config HZ_FIXED
Russell Kingf8065812006-03-02 22:41:59 +00001610 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001611 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001612 ARCH_S5PV210 || ARCH_EXYNOS4
David Brownell5248c652007-11-12 17:59:10 +01001613 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001614 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell King47d84682013-09-10 23:47:55 +01001615 default 0
Russell Kingc9218b12013-04-27 23:31:10 +01001616
1617choice
Russell King47d84682013-09-10 23:47:55 +01001618 depends on HZ_FIXED = 0
Russell Kingc9218b12013-04-27 23:31:10 +01001619 prompt "Timer frequency"
1620
1621config HZ_100
1622 bool "100 Hz"
1623
1624config HZ_200
1625 bool "200 Hz"
1626
1627config HZ_250
1628 bool "250 Hz"
1629
1630config HZ_300
1631 bool "300 Hz"
1632
1633config HZ_500
1634 bool "500 Hz"
1635
1636config HZ_1000
1637 bool "1000 Hz"
1638
1639endchoice
1640
1641config HZ
1642 int
Russell King47d84682013-09-10 23:47:55 +01001643 default HZ_FIXED if HZ_FIXED != 0
Russell Kingc9218b12013-04-27 23:31:10 +01001644 default 100 if HZ_100
1645 default 200 if HZ_200
1646 default 250 if HZ_250
1647 default 300 if HZ_300
1648 default 500 if HZ_500
1649 default 1000
1650
1651config SCHED_HRTICK
1652 def_bool HIGH_RES_TIMERS
Russell Kingf8065812006-03-02 22:41:59 +00001653
Russell Kingb28748f2013-02-17 14:40:33 +00001654config SCHED_HRTICK
1655 def_bool HIGH_RES_TIMERS
1656
Catalin Marinas16c79652009-07-24 12:33:02 +01001657config THUMB2_KERNEL
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001658 bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
Uwe Kleine-König4477ca42013-03-21 21:02:37 +01001659 depends on (CPU_V7 || CPU_V7M) && !CPU_V6 && !CPU_V6K
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001660 default y if CPU_THUMBONLY
Catalin Marinas16c79652009-07-24 12:33:02 +01001661 select AEABI
1662 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001663 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001664 help
1665 By enabling this option, the kernel will be compiled in
1666 Thumb-2 mode. A compiler/assembler that understand the unified
1667 ARM-Thumb syntax is needed.
1668
1669 If unsure, say N.
1670
Dave Martin6f685c52011-03-03 11:41:12 +01001671config THUMB2_AVOID_R_ARM_THM_JUMP11
1672 bool "Work around buggy Thumb-2 short branch relocations in gas"
1673 depends on THUMB2_KERNEL && MODULES
1674 default y
1675 help
1676 Various binutils versions can resolve Thumb-2 branches to
1677 locally-defined, preemptible global symbols as short-range "b.n"
1678 branch instructions.
1679
1680 This is a problem, because there's no guarantee the final
1681 destination of the symbol, or any candidate locations for a
1682 trampoline, are within range of the branch. For this reason, the
1683 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1684 relocation in modules at all, and it makes little sense to add
1685 support.
1686
1687 The symptom is that the kernel fails with an "unsupported
1688 relocation" error when loading some modules.
1689
1690 Until fixed tools are available, passing
1691 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1692 code which hits this problem, at the cost of a bit of extra runtime
1693 stack usage in some cases.
1694
1695 The problem is described in more detail at:
1696 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1697
1698 Only Thumb-2 kernels are affected.
1699
1700 Unless you are sure your tools don't have this problem, say Y.
1701
Catalin Marinas0becb082009-07-24 12:32:53 +01001702config ARM_ASM_UNIFIED
1703 bool
1704
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001705config AEABI
1706 bool "Use the ARM EABI to compile the kernel"
1707 help
1708 This option allows for the kernel to be compiled using the latest
1709 ARM ABI (aka EABI). This is only useful if you are using a user
1710 space environment that is also compiled with EABI.
1711
1712 Since there are major incompatibilities between the legacy ABI and
1713 EABI, especially with regard to structure member alignment, this
1714 option also changes the kernel syscall calling convention to
1715 disambiguate both ABIs and allow for backward compatibility support
1716 (selected with CONFIG_OABI_COMPAT).
1717
1718 To use this you need GCC version 4.0.0 or later.
1719
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001720config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001721 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001722 depends on AEABI && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001723 help
1724 This option preserves the old syscall interface along with the
1725 new (ARM EABI) one. It also provides a compatibility layer to
1726 intercept syscalls that have structure arguments which layout
1727 in memory differs between the legacy ABI and the new ARM EABI
1728 (only for non "thumb" binaries). This option adds a tiny
1729 overhead to all syscalls and produces a slightly larger kernel.
Kees Cook91702172013-11-09 00:51:56 +01001730
1731 The seccomp filter system will not be available when this is
1732 selected, since there is no way yet to sensibly distinguish
1733 between calling conventions during filtering.
1734
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001735 If you know you'll be using only pure EABI user space then you
1736 can say N here. If this option is not selected and you attempt
1737 to execute a legacy ABI binary then the result will be
1738 UNPREDICTABLE (in fact it can be predicted that it won't work
Kees Cookb02f8462013-11-09 00:31:11 +01001739 at all). If in doubt say N.
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001740
Mel Gormaneb335752009-05-13 17:34:48 +01001741config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001742 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001743
Russell King05944d72006-11-30 20:43:51 +00001744config ARCH_SPARSEMEM_ENABLE
1745 bool
1746
Russell King07a2f732008-10-01 21:39:58 +01001747config ARCH_SPARSEMEM_DEFAULT
1748 def_bool ARCH_SPARSEMEM_ENABLE
1749
Russell King05944d72006-11-30 20:43:51 +00001750config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001751 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001752
Will Deacon7b7bf492011-05-19 13:21:14 +01001753config HAVE_ARCH_PFN_VALID
1754 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1755
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001756config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001757 bool "High Memory Support"
1758 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001759 help
1760 The address space of ARM processors is only 4 Gigabytes large
1761 and it has to accommodate user address space, kernel address
1762 space as well as some memory mapped IO. That means that, if you
1763 have a large amount of physical memory and/or IO, not all of the
1764 memory can be "permanently mapped" by the kernel. The physical
1765 memory that is not permanently mapped is called "high memory".
1766
1767 Depending on the selected kernel/user memory split, minimum
1768 vmalloc space and actual amount of RAM, you may not need this
1769 option which should result in a slightly faster kernel.
1770
1771 If unsure, say n.
1772
Russell King65cec8e2009-08-17 20:02:06 +01001773config HIGHPTE
1774 bool "Allocate 2nd-level pagetables from highmem"
1775 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001776
Jamie Iles1b8873a2010-02-02 20:25:44 +01001777config HW_PERF_EVENTS
1778 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001779 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001780 default y
1781 help
1782 Enable hardware performance counter support for perf events. If
1783 disabled, perf events will use software events only.
1784
Catalin Marinas1355e2a2012-07-25 14:32:38 +01001785config SYS_SUPPORTS_HUGETLBFS
1786 def_bool y
1787 depends on ARM_LPAE
1788
Catalin Marinas8d962502012-07-25 14:39:26 +01001789config HAVE_ARCH_TRANSPARENT_HUGEPAGE
1790 def_bool y
1791 depends on ARM_LPAE
1792
Steven Capper4bfab202013-07-26 14:58:22 +01001793config ARCH_WANT_GENERAL_HUGETLB
1794 def_bool y
1795
Dave Hansen3f22ab22005-06-23 00:07:43 -07001796source "mm/Kconfig"
1797
Magnus Dammc1b2d972010-07-05 10:00:11 +01001798config FORCE_MAX_ZONEORDER
1799 int "Maximum zone order" if ARCH_SHMOBILE
1800 range 11 64 if ARCH_SHMOBILE
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001801 default "12" if SOC_AM33XX
Magnus Dammc1b2d972010-07-05 10:00:11 +01001802 default "9" if SA1111
1803 default "11"
1804 help
1805 The kernel memory allocator divides physically contiguous memory
1806 blocks into "zones", where each zone is a power of two number of
1807 pages. This option selects the largest power of two that the kernel
1808 keeps in the memory allocator. If you need to allocate very large
1809 blocks of physically contiguous memory, then you may need to
1810 increase this value.
1811
1812 This config option is actually maximum order plus one. For example,
1813 a value of 11 means that the largest free memory block is 2^10 pages.
1814
Linus Torvalds1da177e2005-04-16 15:20:36 -07001815config ALIGNMENT_TRAP
1816 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001817 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001818 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001819 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001820 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001821 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001822 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1823 address divisible by 4. On 32-bit ARM processors, these non-aligned
1824 fetch/store instructions will be emulated in software if you say
1825 here, which has a severe performance impact. This is necessary for
1826 correct operation of some network protocols. With an IP-only
1827 configuration it is safe to say N, otherwise say Y.
1828
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001829config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001830 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1831 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001832 default y if CPU_FEROCEON
1833 help
1834 Implement faster copy_to_user and clear_user methods for CPU
1835 cores where a 8-word STM instruction give significantly higher
1836 memory write throughput than a sequence of individual 32bit stores.
1837
1838 A possible side effect is a slight increase in scheduling latency
1839 between threads sharing the same address space if they invoke
1840 such copy operations with large buffers.
1841
1842 However, if the CPU data cache is using a write-allocate mode,
1843 this option is unlikely to provide any performance gain.
1844
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001845config SECCOMP
1846 bool
1847 prompt "Enable seccomp to safely compute untrusted bytecode"
1848 ---help---
1849 This kernel feature is useful for number crunching applications
1850 that may need to compute untrusted bytecode during their
1851 execution. By using pipes or other transports made available to
1852 the process as file descriptors supporting the read/write
1853 syscalls, it's possible to isolate those applications in
1854 their own address space using seccomp. Once seccomp is
1855 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1856 and the task is only allowed to execute a few safe syscalls
1857 defined by each seccomp mode.
1858
Nicolas Pitrec743f382010-05-24 23:55:42 -04001859config CC_STACKPROTECTOR
1860 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1861 help
1862 This option turns on the -fstack-protector GCC feature. This
1863 feature puts, at the beginning of functions, a canary value on
1864 the stack just before the return address, and validates
1865 the value just before actually returning. Stack based buffer
1866 overflows (that need to overwrite this return address) now also
1867 overwrite the canary, which gets detected and the attack is then
1868 neutralized via a kernel panic.
1869 This feature requires gcc version 4.2 or above.
1870
Stefano Stabellini06e62952013-10-15 15:47:14 +00001871config SWIOTLB
1872 def_bool y
1873
1874config IOMMU_HELPER
1875 def_bool SWIOTLB
1876
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001877config XEN_DOM0
1878 def_bool y
1879 depends on XEN
1880
1881config XEN
1882 bool "Xen guest support on ARM (EXPERIMENTAL)"
Ian Campbell85323a92013-03-07 07:17:25 +00001883 depends on ARM && AEABI && OF
Arnd Bergmannf880b672012-10-09 10:33:52 +00001884 depends on CPU_V7 && !CPU_V6
Ian Campbell85323a92013-03-07 07:17:25 +00001885 depends on !GENERIC_ATOMIC64
Stefano Stabellini17b7ab82013-04-24 18:47:18 +00001886 select ARM_PSCI
Stefano Stabellini83862cc2013-10-10 13:40:44 +00001887 select SWIOTLB_XEN
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001888 help
1889 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1890
Linus Torvalds1da177e2005-04-16 15:20:36 -07001891endmenu
1892
1893menu "Boot options"
1894
Grant Likely9eb8f672011-04-28 14:27:20 -06001895config USE_OF
1896 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001897 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001898 select OF
1899 select OF_EARLY_FLATTREE
1900 help
1901 Include support for flattened device tree machine descriptions.
1902
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001903config ATAGS
1904 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1905 default y
1906 help
1907 This is the traditional way of passing data to the kernel at boot
1908 time. If you are solely relying on the flattened device tree (or
1909 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1910 to remove ATAGS support from your kernel binary. If unsure,
1911 leave this to y.
1912
1913config DEPRECATED_PARAM_STRUCT
1914 bool "Provide old way to pass kernel parameters"
1915 depends on ATAGS
1916 help
1917 This was deprecated in 2001 and announced to live on for 5 years.
1918 Some old boot loaders still use this way.
1919
Linus Torvalds1da177e2005-04-16 15:20:36 -07001920# Compressed boot loader in ROM. Yes, we really want to ask about
1921# TEXT and BSS so we preserve their values in the config files.
1922config ZBOOT_ROM_TEXT
1923 hex "Compressed ROM boot loader base address"
1924 default "0"
1925 help
1926 The physical address at which the ROM-able zImage is to be
1927 placed in the target. Platforms which normally make use of
1928 ROM-able zImage formats normally set this to a suitable
1929 value in their defconfig file.
1930
1931 If ZBOOT_ROM is not enabled, this has no effect.
1932
1933config ZBOOT_ROM_BSS
1934 hex "Compressed ROM boot loader BSS address"
1935 default "0"
1936 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001937 The base address of an area of read/write memory in the target
1938 for the ROM-able zImage which must be available while the
1939 decompressor is running. It must be large enough to hold the
1940 entire decompressed kernel plus an additional 128 KiB.
1941 Platforms which normally make use of ROM-able zImage formats
1942 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001943
1944 If ZBOOT_ROM is not enabled, this has no effect.
1945
1946config ZBOOT_ROM
1947 bool "Compressed boot loader in ROM/flash"
1948 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1949 help
1950 Say Y here if you intend to execute your compressed kernel image
1951 (zImage) directly from ROM or flash. If unsure, say N.
1952
Simon Horman090ab3f2011-04-26 06:29:53 +01001953choice
1954 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001955 depends on ZBOOT_ROM && ARCH_SH7372
Simon Horman090ab3f2011-04-26 06:29:53 +01001956 default ZBOOT_ROM_NONE
1957 help
1958 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001959 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001960 kernel image to an MMC or SD card and boot the kernel straight
1961 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001962 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001963 rest the kernel image to RAM.
1964
1965config ZBOOT_ROM_NONE
1966 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1967 help
1968 Do not load image from SD or MMC
1969
Simon Hormanf45b1142011-01-11 04:01:08 +01001970config ZBOOT_ROM_MMCIF
1971 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001972 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001973 Load image from MMCIF hardware block.
1974
1975config ZBOOT_ROM_SH_MOBILE_SDHI
1976 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1977 help
1978 Load image from SDHI hardware block
1979
1980endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001981
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001982config ARM_APPENDED_DTB
1983 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001984 depends on OF && !ZBOOT_ROM
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001985 help
1986 With this option, the boot code will look for a device tree binary
1987 (DTB) appended to zImage
1988 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1989
1990 This is meant as a backward compatibility convenience for those
1991 systems with a bootloader that can't be upgraded to accommodate
1992 the documented boot protocol using a device tree.
1993
1994 Beware that there is very little in terms of protection against
1995 this option being confused by leftover garbage in memory that might
1996 look like a DTB header after a reboot if no actual DTB is appended
1997 to zImage. Do not leave this option active in a production kernel
1998 if you don't intend to always append a DTB. Proper passing of the
1999 location into r2 of a bootloader provided DTB is always preferable
2000 to this option.
2001
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04002002config ARM_ATAG_DTB_COMPAT
2003 bool "Supplement the appended DTB with traditional ATAG information"
2004 depends on ARM_APPENDED_DTB
2005 help
2006 Some old bootloaders can't be updated to a DTB capable one, yet
2007 they provide ATAGs with memory configuration, the ramdisk address,
2008 the kernel cmdline string, etc. Such information is dynamically
2009 provided by the bootloader and can't always be stored in a static
2010 DTB. To allow a device tree enabled kernel to be used with such
2011 bootloaders, this option allows zImage to extract the information
2012 from the ATAG list and store it at run time into the appended DTB.
2013
Genoud Richardd0f34a112012-06-26 16:37:59 +01002014choice
2015 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
2016 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
2017
2018config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
2019 bool "Use bootloader kernel arguments if available"
2020 help
2021 Uses the command-line options passed by the boot loader instead of
2022 the device tree bootargs property. If the boot loader doesn't provide
2023 any, the device tree bootargs property will be used.
2024
2025config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
2026 bool "Extend with bootloader kernel arguments"
2027 help
2028 The command-line arguments provided by the boot loader will be
2029 appended to the the device tree bootargs property.
2030
2031endchoice
2032
Linus Torvalds1da177e2005-04-16 15:20:36 -07002033config CMDLINE
2034 string "Default kernel command string"
2035 default ""
2036 help
2037 On some architectures (EBSA110 and CATS), there is currently no way
2038 for the boot loader to pass arguments to the kernel. For these
2039 architectures, you should supply some command-line options at build
2040 time by entering them here. As a minimum, you should specify the
2041 memory size and the root device (e.g., mem=64M root=/dev/nfs).
2042
Victor Boivie4394c122011-05-04 17:07:55 +01002043choice
2044 prompt "Kernel command line type" if CMDLINE != ""
2045 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002046 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01002047
2048config CMDLINE_FROM_BOOTLOADER
2049 bool "Use bootloader kernel arguments if available"
2050 help
2051 Uses the command-line options passed by the boot loader. If
2052 the boot loader doesn't provide any, the default kernel command
2053 string provided in CMDLINE will be used.
2054
2055config CMDLINE_EXTEND
2056 bool "Extend bootloader kernel arguments"
2057 help
2058 The command-line arguments provided by the boot loader will be
2059 appended to the default kernel command string.
2060
Alexander Holler92d20402010-02-16 19:04:53 +01002061config CMDLINE_FORCE
2062 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01002063 help
2064 Always use the default kernel command string, even if the boot
2065 loader passes other arguments to the kernel.
2066 This is useful if you cannot or don't want to change the
2067 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01002068endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002069
Linus Torvalds1da177e2005-04-16 15:20:36 -07002070config XIP_KERNEL
2071 bool "Kernel Execute-In-Place from ROM"
Rob Herring387798b2012-09-06 13:41:12 -05002072 depends on !ZBOOT_ROM && !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07002073 help
2074 Execute-In-Place allows the kernel to run from non-volatile storage
2075 directly addressable by the CPU, such as NOR flash. This saves RAM
2076 space since the text section of the kernel is not loaded from flash
2077 to RAM. Read-write sections, such as the data section and stack,
2078 are still copied to RAM. The XIP kernel is not compressed since
2079 it has to run directly from flash, so it will take more space to
2080 store it. The flash address used to link the kernel object files,
2081 and for storing it, is configuration dependent. Therefore, if you
2082 say Y here, you must know the proper physical address where to
2083 store the kernel image depending on your own flash memory usage.
2084
2085 Also note that the make target becomes "make xipImage" rather than
2086 "make zImage" or "make Image". The final kernel binary to put in
2087 ROM memory will be arch/arm/boot/xipImage.
2088
2089 If unsure, say N.
2090
2091config XIP_PHYS_ADDR
2092 hex "XIP Kernel Physical Location"
2093 depends on XIP_KERNEL
2094 default "0x00080000"
2095 help
2096 This is the physical address in your flash memory the kernel will
2097 be linked for and stored to. This address is dependent on your
2098 own flash usage.
2099
Richard Purdiec587e4a2007-02-06 21:29:00 +01002100config KEXEC
2101 bool "Kexec system call (EXPERIMENTAL)"
Stephen Warren19ab4282013-06-14 16:14:14 +01002102 depends on (!SMP || PM_SLEEP_SMP)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002103 help
2104 kexec is a system call that implements the ability to shutdown your
2105 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002106 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002107 you can start any kernel with it, not just Linux.
2108
2109 It is an ongoing process to be certain the hardware in a machine
2110 is properly shutdown, so do not be surprised if this code does not
Geert Uytterhoevenbf220692013-08-20 21:38:03 +02002111 initially work for you.
Richard Purdiec587e4a2007-02-06 21:29:00 +01002112
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002113config ATAGS_PROC
2114 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002115 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01002116 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002117 help
2118 Should the atags used to boot the kernel be exported in an "atags"
2119 file in procfs. Useful with kexec.
2120
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002121config CRASH_DUMP
2122 bool "Build kdump crash kernel (EXPERIMENTAL)"
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002123 help
2124 Generate crash dump after being started by kexec. This should
2125 be normally only set in special crash dump kernels which are
2126 loaded in the main kernel with kexec-tools into a specially
2127 reserved region and then later executed after a crash by
2128 kdump/kexec. The crash dump kernel must be compiled to a
2129 memory address not used by the main kernel
2130
2131 For more details see Documentation/kdump/kdump.txt
2132
Eric Miaoe69edc792010-07-05 15:56:50 +02002133config AUTO_ZRELADDR
2134 bool "Auto calculation of the decompressed kernel image address"
Linus Walleije1b31442013-05-02 18:01:46 +02002135 depends on !ZBOOT_ROM
Eric Miaoe69edc792010-07-05 15:56:50 +02002136 help
2137 ZRELADDR is the physical address where the decompressed kernel
2138 image will be placed. If AUTO_ZRELADDR is selected, the address
2139 will be determined at run-time by masking the current IP with
2140 0xf8000000. This assumes the zImage being placed in the first 128MB
2141 from start of memory.
2142
Linus Torvalds1da177e2005-04-16 15:20:36 -07002143endmenu
2144
Russell Kingac9d7ef2008-08-18 17:26:00 +01002145menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002146
Ben Dooks89c52ed2009-07-30 23:23:24 +01002147if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002148source "drivers/cpufreq/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002149endif
2150
Russell Kingac9d7ef2008-08-18 17:26:00 +01002151source "drivers/cpuidle/Kconfig"
2152
2153endmenu
2154
Linus Torvalds1da177e2005-04-16 15:20:36 -07002155menu "Floating point emulation"
2156
2157comment "At least one emulation must be selected"
2158
2159config FPE_NWFPE
2160 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002161 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002162 ---help---
2163 Say Y to include the NWFPE floating point emulator in the kernel.
2164 This is necessary to run most binaries. Linux does not currently
2165 support floating point hardware so you need to say Y here even if
2166 your machine has an FPA or floating point co-processor podule.
2167
2168 You may say N here if you are going to load the Acorn FPEmulator
2169 early in the bootup.
2170
2171config FPE_NWFPE_XP
2172 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002173 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002174 help
2175 Say Y to include 80-bit support in the kernel floating-point
2176 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2177 Note that gcc does not generate 80-bit operations by default,
2178 so in most cases this option only enlarges the size of the
2179 floating point emulator without any good reason.
2180
2181 You almost surely want to say N here.
2182
2183config FPE_FASTFPE
2184 bool "FastFPE math emulation (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002185 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
Linus Torvalds1da177e2005-04-16 15:20:36 -07002186 ---help---
2187 Say Y here to include the FAST floating point emulator in the kernel.
2188 This is an experimental much faster emulator which now also has full
2189 precision for the mantissa. It does not support any exceptions.
2190 It is very simple, and approximately 3-6 times faster than NWFPE.
2191
2192 It should be sufficient for most programs. It may be not suitable
2193 for scientific calculations, but you have to check this for yourself.
2194 If you do not feel you need a faster FP emulation you should better
2195 choose NWFPE.
2196
2197config VFP
2198 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002199 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002200 help
2201 Say Y to include VFP support code in the kernel. This is needed
2202 if your hardware includes a VFP unit.
2203
2204 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2205 release notes and additional status information.
2206
2207 Say N if your target does not have VFP hardware.
2208
Catalin Marinas25ebee02007-09-25 15:22:24 +01002209config VFPv3
2210 bool
2211 depends on VFP
2212 default y if CPU_V7
2213
Catalin Marinasb5872db2008-01-10 19:16:17 +01002214config NEON
2215 bool "Advanced SIMD (NEON) Extension support"
2216 depends on VFPv3 && CPU_V7
2217 help
2218 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2219 Extension.
2220
Ard Biesheuvel73c132c2013-05-16 11:41:48 +02002221config KERNEL_MODE_NEON
2222 bool "Support for NEON in kernel mode"
Russell Kingc4a30c32013-09-22 11:08:50 +01002223 depends on NEON && AEABI
Ard Biesheuvel73c132c2013-05-16 11:41:48 +02002224 help
2225 Say Y to include support for NEON in kernel mode.
2226
Linus Torvalds1da177e2005-04-16 15:20:36 -07002227endmenu
2228
2229menu "Userspace binary formats"
2230
2231source "fs/Kconfig.binfmt"
2232
2233config ARTHUR
2234 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002235 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002236 help
2237 Say Y here to include the kernel code necessary if you want to run
2238 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2239 experimental; if this sounds frightening, say N and sleep in peace.
2240 You can also say M here to compile this support as a module (which
2241 will be called arthur).
2242
2243endmenu
2244
2245menu "Power management options"
2246
Russell Kingeceab4a2005-11-15 11:31:41 +00002247source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002248
Johannes Bergf4cb5702007-12-08 02:14:00 +01002249config ARCH_SUSPEND_POSSIBLE
Stephen Warren4b1082c2012-09-05 09:58:27 -06002250 depends on !ARCH_S5PC100
Ezequiel Garcia19a05192013-08-16 10:28:24 +01002251 depends on CPU_ARM920T || CPU_ARM926T || CPU_FEROCEON || CPU_SA1100 || \
Chao Xie3f5d0812012-05-07 11:23:58 +08002252 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002253 def_bool y
2254
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002255config ARM_CPU_SUSPEND
2256 def_bool PM_SLEEP
2257
Linus Torvalds1da177e2005-04-16 15:20:36 -07002258endmenu
2259
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002260source "net/Kconfig"
2261
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002262source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002263
2264source "fs/Kconfig"
2265
Linus Torvalds1da177e2005-04-16 15:20:36 -07002266source "arch/arm/Kconfig.debug"
2267
2268source "security/Kconfig"
2269
2270source "crypto/Kconfig"
2271
2272source "lib/Kconfig"
Christoffer Dall749cf76c2013-01-20 18:28:06 -05002273
2274source "arch/arm/kvm/Kconfig"