blob: 7560be4cce92e250b9e30d9c50bbdba989072f15 [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
Kim Phillips017f1612013-11-06 05:15:24 +01009 select ARCH_USE_BUILTIN_BSWAP
Will Deacon0cbad9c2013-10-09 17:19:22 +010010 select ARCH_USE_CMPXCHG_LOCKREF
Russell Kingb1b3f492012-10-06 17:12:25 +010011 select ARCH_WANT_IPC_PARSE_VERSION
Stephen Boydee951c62012-10-29 19:19:34 +010012 select BUILDTIME_EXTABLE_SORT if MMU
Russell King171b3f02013-09-12 21:24:42 +010013 select CLONE_BACKWARDS
Russell Kingb1b3f492012-10-06 17:12:25 +010014 select CPU_PM if (SUSPEND || CPU_IDLE)
Will Deacondce5c9e2013-12-17 19:50:16 +010015 select DCACHE_WORD_ACCESS if HAVE_EFFICIENT_UNALIGNED_ACCESS
Uwe Kleine-König4477ca42013-03-21 21:02:37 +010016 select GENERIC_ATOMIC64 if (CPU_V7M || CPU_V6 || !CPU_32v6K || !AEABI)
Russell Kingb1b3f492012-10-06 17:12:25 +010017 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
Russell King171b3f02013-09-12 21:24:42 +010018 select GENERIC_IDLE_POLL_SETUP
Russell Kingb1b3f492012-10-06 17:12:25 +010019 select GENERIC_IRQ_PROBE
20 select GENERIC_IRQ_SHOW
Russell Kingb1b3f492012-10-06 17:12:25 +010021 select GENERIC_PCI_IOMAP
Stephen Boyd38ff87f2013-06-01 23:39:40 -070022 select GENERIC_SCHED_CLOCK
Russell Kingb1b3f492012-10-06 17:12:25 +010023 select GENERIC_SMP_IDLE_THREAD
24 select GENERIC_STRNCPY_FROM_USER
25 select GENERIC_STRNLEN_USER
26 select HARDIRQS_SW_RESEND
Rabin Vincent09f05d82012-02-18 17:52:41 +010027 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
Jason Wessel5cbad0e2008-02-20 13:33:40 -060028 select HAVE_ARCH_KGDB
Kees Cook91702172013-11-09 00:51:56 +010029 select HAVE_ARCH_SECCOMP_FILTER if (AEABI && !OABI_COMPAT)
Wade Farnsworth0693bf62012-04-04 16:19:47 +010030 select HAVE_ARCH_TRACEHOOK
Russell Kingb1b3f492012-10-06 17:12:25 +010031 select HAVE_BPF_JIT
Russell King171b3f02013-09-12 21:24:42 +010032 select HAVE_CONTEXT_TRACKING
Russell Kingb1b3f492012-10-06 17:12:25 +010033 select HAVE_C_RECORDMCOUNT
Kees Cook19952a92013-12-19 11:35:58 -080034 select HAVE_CC_STACKPROTECTOR
Russell Kingb1b3f492012-10-06 17:12:25 +010035 select HAVE_DEBUG_KMEMLEAK
36 select HAVE_DMA_API_DEBUG
37 select HAVE_DMA_ATTRS
38 select HAVE_DMA_CONTIGUOUS if MMU
39 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Will Deacondce5c9e2013-12-17 19:50:16 +010040 select HAVE_EFFICIENT_UNALIGNED_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && MMU
Russell Kingb1b3f492012-10-06 17:12:25 +010041 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
42 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
43 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
44 select HAVE_GENERIC_DMA_COHERENT
Russell Kingb1b3f492012-10-06 17:12:25 +010045 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
46 select HAVE_IDE if PCI || ISA || PCMCIA
Russell King87c46b62013-05-04 14:38:59 +010047 select HAVE_IRQ_TIME_ACCOUNTING
Russell Kingb1b3f492012-10-06 17:12:25 +010048 select HAVE_KERNEL_GZIP
Kyungsik Leef9b493a2013-07-08 16:01:48 -070049 select HAVE_KERNEL_LZ4
Russell Kingb1b3f492012-10-06 17:12:25 +010050 select HAVE_KERNEL_LZMA
51 select HAVE_KERNEL_LZO
52 select HAVE_KERNEL_XZ
Jon Medhurst856bc352011-06-14 13:09:39 +010053 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080054 select HAVE_KRETPROBES if (HAVE_KPROBES)
Russell Kingb1b3f492012-10-06 17:12:25 +010055 select HAVE_MEMBLOCK
Russell King171b3f02013-09-12 21:24:42 +010056 select HAVE_MOD_ARCH_SPECIFIC if ARM_UNWIND
Russell Kingb1b3f492012-10-06 17:12:25 +010057 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jamie Iles7ada1892010-02-02 20:24:58 +010058 select HAVE_PERF_EVENTS
Will Deacon49863892013-09-26 12:36:35 +010059 select HAVE_PERF_REGS
60 select HAVE_PERF_USER_STACK_DUMP
Will Deacone513f8b2010-06-25 12:24:53 +010061 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kingb1b3f492012-10-06 17:12:25 +010062 select HAVE_SYSCALL_TRACEPOINTS
Catalin Marinasaf1839e2012-10-08 16:28:08 -070063 select HAVE_UID16
Kevin Hilman31c1fc82013-09-16 15:28:22 -070064 select HAVE_VIRT_CPU_ACCOUNTING_GEN
Thomas Gleixnerda0ec6f2013-08-14 20:43:17 +010065 select IRQ_FORCED_THREADING
Anna-Maria Gleixner3d92a712012-05-18 16:45:44 +000066 select KTIME_SCALAR
Russell King171b3f02013-09-12 21:24:42 +010067 select MODULES_USE_ELF_REL
Santosh Shilimkar84f452b2013-06-30 00:28:46 -040068 select NO_BOOTMEM
Russell King171b3f02013-09-12 21:24:42 +010069 select OLD_SIGACTION
70 select OLD_SIGSUSPEND3
Russell Kingb1b3f492012-10-06 17:12:25 +010071 select PERF_USE_VMALLOC
72 select RTC_LIB
73 select SYS_SUPPORTS_APM_EMULATION
Russell King171b3f02013-09-12 21:24:42 +010074 # Above selects are sorted alphabetically; please add new ones
75 # according to that. Thanks.
Linus Torvalds1da177e2005-04-16 15:20:36 -070076 help
77 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000078 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070079 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000080 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070081 Europe. There is an ARM Linux project with a web page at
82 <http://www.arm.linux.org.uk/>.
83
Russell King74facff2011-06-02 11:16:22 +010084config ARM_HAS_SG_CHAIN
85 bool
86
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020087config NEED_SG_DMA_LENGTH
88 bool
89
90config ARM_DMA_USE_IOMMU
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020091 bool
Russell Kingb1b3f492012-10-06 17:12:25 +010092 select ARM_HAS_SG_CHAIN
93 select NEED_SG_DMA_LENGTH
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020094
Seung-Woo Kim60460ab2013-02-06 13:21:14 +090095if ARM_DMA_USE_IOMMU
96
97config ARM_DMA_IOMMU_ALIGNMENT
98 int "Maximum PAGE_SIZE order of alignment for DMA IOMMU buffers"
99 range 4 9
100 default 8
101 help
102 DMA mapping framework by default aligns all buffers to the smallest
103 PAGE_SIZE order which is greater than or equal to the requested buffer
104 size. This works well for buffers up to a few hundreds kilobytes, but
105 for larger buffers it just a waste of address space. Drivers which has
106 relatively small addressing window (like 64Mib) might run out of
107 virtual space with just a few allocations.
108
109 With this parameter you can specify the maximum PAGE_SIZE order for
110 DMA IOMMU buffers. Larger buffers will be aligned only to this
111 specified order. The order is expressed as a power of two multiplied
112 by the PAGE_SIZE.
113
114endif
115
Russell King1a189b92008-04-13 21:41:55 +0100116config HAVE_PWM
117 bool
118
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100119config MIGHT_HAVE_PCI
120 bool
121
Ralf Baechle75e71532007-02-09 17:08:58 +0000122config SYS_SUPPORTS_APM_EMULATION
123 bool
124
Linus Walleijbc581772009-09-15 17:30:37 +0100125config HAVE_TCM
126 bool
127 select GENERIC_ALLOCATOR
128
Russell Kinge119bff2010-01-10 17:23:29 +0000129config HAVE_PROC_CPU
130 bool
131
Al Viro5ea81762007-02-11 15:41:31 +0000132config NO_IOPORT
133 bool
Al Viro5ea81762007-02-11 15:41:31 +0000134
Linus Torvalds1da177e2005-04-16 15:20:36 -0700135config EISA
136 bool
137 ---help---
138 The Extended Industry Standard Architecture (EISA) bus was
139 developed as an open alternative to the IBM MicroChannel bus.
140
141 The EISA bus provided some of the features of the IBM MicroChannel
142 bus while maintaining backward compatibility with cards made for
143 the older ISA bus. The EISA bus saw limited use between 1988 and
144 1995 when it was made obsolete by the PCI bus.
145
146 Say Y here if you are building a kernel for an EISA-based machine.
147
148 Otherwise, say N.
149
150config SBUS
151 bool
152
Russell Kingf16fb1e2007-04-28 09:59:37 +0100153config STACKTRACE_SUPPORT
154 bool
155 default y
156
Nicolas Pitref76e9152008-04-24 01:31:46 -0400157config HAVE_LATENCYTOP_SUPPORT
158 bool
159 depends on !SMP
160 default y
161
Russell Kingf16fb1e2007-04-28 09:59:37 +0100162config LOCKDEP_SUPPORT
163 bool
164 default y
165
Russell King7ad1bcb2006-08-27 12:07:02 +0100166config TRACE_IRQFLAGS_SUPPORT
167 bool
168 default y
169
Linus Torvalds1da177e2005-04-16 15:20:36 -0700170config RWSEM_GENERIC_SPINLOCK
171 bool
172 default y
173
174config RWSEM_XCHGADD_ALGORITHM
175 bool
176
David Howellsf0d1b0b2006-12-08 02:37:49 -0800177config ARCH_HAS_ILOG2_U32
178 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800179
180config ARCH_HAS_ILOG2_U64
181 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800182
Ben Dooks89c52ed2009-07-30 23:23:24 +0100183config ARCH_HAS_CPUFREQ
184 bool
185 help
186 Internal node to signify that the ARCH has CPUFREQ support
187 and that the relevant menu configurations are displayed for
188 it.
189
Eduardo Valentin4a1b5732013-06-13 22:58:52 +0100190config ARCH_HAS_BANDGAP
191 bool
192
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800193config GENERIC_HWEIGHT
194 bool
195 default y
196
Linus Torvalds1da177e2005-04-16 15:20:36 -0700197config GENERIC_CALIBRATE_DELAY
198 bool
199 default y
200
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100201config ARCH_MAY_HAVE_PC_FDC
202 bool
203
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800204config ZONE_DMA
205 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800206
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800207config NEED_DMA_MAP_STATE
208 def_bool y
209
Rob Herring58af4a22012-03-20 14:33:01 -0500210config ARCH_HAS_DMA_SET_COHERENT_MASK
211 bool
212
Linus Torvalds1da177e2005-04-16 15:20:36 -0700213config GENERIC_ISA_DMA
214 bool
215
Linus Torvalds1da177e2005-04-16 15:20:36 -0700216config FIQ
217 bool
218
Rob Herring13a50452012-02-07 09:28:22 -0600219config NEED_RET_TO_USER
220 bool
221
Al Viro034d2f52005-12-19 16:27:59 -0500222config ARCH_MTD_XIP
223 bool
224
Hyok S. Choic760fc12006-03-27 15:18:50 +0100225config VECTORS_BASE
226 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900227 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100228 default DRAM_BASE if REMAP_VECTORS_TO_RAM
229 default 0x00000000
230 help
Russell King19accfd2013-07-04 11:40:32 +0100231 The base address of exception vectors. This must be two pages
232 in size.
Hyok S. Choic760fc12006-03-27 15:18:50 +0100233
Russell Kingdc21af92011-01-04 19:09:43 +0000234config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100235 bool "Patch physical to virtual translations at runtime" if EMBEDDED
236 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100237 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000238 depends on !ARCH_REALVIEW || !SPARSEMEM
239 help
Russell King111e9a52011-05-12 10:02:42 +0100240 Patch phys-to-virt and virt-to-phys translation functions at
241 boot and module load time according to the position of the
242 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000243
Russell King111e9a52011-05-12 10:02:42 +0100244 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100245 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000246
Russell Kingc1beced2011-08-10 10:23:45 +0100247 Only disable this option if you know that you do not require
248 this feature (eg, building a kernel for a single machine) and
249 you need to shrink the kernel to the minimal size.
250
Rob Herring01464222012-08-28 13:06:41 -0500251config NEED_MACH_GPIO_H
252 bool
253 help
254 Select this when mach/gpio.h is required to provide special
255 definitions for this platform. The need for mach/gpio.h should
256 be avoided when possible.
257
Rob Herringc334bc12012-03-04 22:03:33 -0600258config NEED_MACH_IO_H
259 bool
260 help
261 Select this when mach/io.h is required to provide special
262 definitions for this platform. The need for mach/io.h should
263 be avoided when possible.
264
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400265config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400266 bool
Russell King111e9a52011-05-12 10:02:42 +0100267 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400268 Select this when mach/memory.h is required to provide special
269 definitions for this platform. The need for mach/memory.h should
270 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400271
272config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100273 hex "Physical address of main memory" if MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400274 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre974c0722011-12-02 23:09:42 +0100275 default DRAM_BASE if !MMU
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400276 help
277 Please provide the physical address corresponding to the
278 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000279
Simon Glass87e040b2011-08-16 23:44:26 +0100280config GENERIC_BUG
281 def_bool y
282 depends on BUG
283
Linus Torvalds1da177e2005-04-16 15:20:36 -0700284source "init/Kconfig"
285
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700286source "kernel/Kconfig.freezer"
287
Linus Torvalds1da177e2005-04-16 15:20:36 -0700288menu "System Type"
289
Hyok S. Choi3c427972009-07-24 12:35:00 +0100290config MMU
291 bool "MMU-based Paged Memory Management Support"
292 default y
293 help
294 Select if you want MMU-based virtualised addressing space
295 support by paged memory management. If unsure, say 'Y'.
296
Russell Kingccf50e22010-03-15 19:03:06 +0000297#
298# The "ARM system type" choice list is ordered alphabetically by option
299# text. Please add new entries in the option alphabetic order.
300#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700301choice
302 prompt "ARM system type"
Arnd Bergmann1420b222013-02-14 13:33:36 +0100303 default ARCH_VERSATILE if !MMU
304 default ARCH_MULTIPLATFORM if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700305
Rob Herring387798b2012-09-06 13:41:12 -0500306config ARCH_MULTIPLATFORM
307 bool "Allow multiple platforms to be selected"
Russell Kingb1b3f492012-10-06 17:12:25 +0100308 depends on MMU
Rob Herringddb902c2013-11-22 09:29:37 -0600309 select ARCH_WANT_OPTIONAL_GPIOLIB
Rob Herring387798b2012-09-06 13:41:12 -0500310 select ARM_PATCH_PHYS_VIRT
311 select AUTO_ZRELADDR
Dinh Nguyen66314222012-07-18 16:07:18 -0600312 select COMMON_CLK
Rob Herringddb902c2013-11-22 09:29:37 -0600313 select GENERIC_CLOCKEVENTS
Rob Herring387798b2012-09-06 13:41:12 -0500314 select MULTI_IRQ_HANDLER
Dinh Nguyen66314222012-07-18 16:07:18 -0600315 select SPARSE_IRQ
316 select USE_OF
Dinh Nguyen66314222012-07-18 16:07:18 -0600317
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100318config ARCH_INTEGRATOR
319 bool "ARM Ltd. Integrator family"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100320 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100321 select ARM_AMBA
panchaxarife989142013-12-02 16:58:51 +0530322 select ARM_PATCH_PHYS_VIRT
323 select AUTO_ZRELADDR
Linus Walleija6131632012-06-11 17:33:12 +0200324 select COMMON_CLK
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200325 select COMMON_CLK_VERSATILE
Russell Kingb1b3f492012-10-06 17:12:25 +0100326 select GENERIC_CLOCKEVENTS
Linus Walleij9904f792011-12-09 10:29:23 +0100327 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000328 select ICST
Russell Kingb1b3f492012-10-06 17:12:25 +0100329 select MULTI_IRQ_HANDLER
330 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000331 select PLAT_VERSATILE
Linus Walleij695436e2012-02-26 10:46:48 +0100332 select SPARSE_IRQ
Linus Walleijd7057e12013-06-15 22:01:13 +0200333 select USE_OF
Linus Walleij2389d502012-10-31 22:04:31 +0100334 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100335 help
336 Support for ARM's Integrator platform.
337
338config ARCH_REALVIEW
339 bool "ARM Ltd. RealView family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100340 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100341 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100342 select ARM_TIMER_SP804
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200343 select COMMON_CLK
344 select COMMON_CLK_VERSATILE
Catalin Marinasae30cea2008-02-04 17:26:55 +0100345 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100346 select GPIO_PL061 if GPIOLIB
347 select ICST
348 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000349 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000350 select PLAT_VERSATILE_CLCD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100351 help
352 This enables support for ARM Ltd RealView boards.
353
354config ARCH_VERSATILE
355 bool "ARM Ltd. Versatile family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100356 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100357 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100358 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100359 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100360 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100361 select GENERIC_CLOCKEVENTS
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900362 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000363 select ICST
Russell Kingf4b8b312010-01-14 12:48:06 +0000364 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000365 select PLAT_VERSATILE_CLCD
Russell Kingb1b3f492012-10-06 17:12:25 +0100366 select PLAT_VERSATILE_CLOCK
Linus Walleij2389d502012-10-31 22:04:31 +0100367 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100368 help
369 This enables support for ARM Ltd Versatile board.
370
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100371config ARCH_AT91
372 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100373 select ARCH_REQUIRE_GPIOLIB
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100374 select CLKDEV_LOOKUP
Nicolas Ferree2615012011-11-22 22:26:09 +0100375 select IRQ_DOMAIN
Rob Herring01464222012-08-28 13:06:41 -0500376 select NEED_MACH_GPIO_H
Rob Herring1ac02d72012-04-04 17:48:04 -0500377 select NEED_MACH_IO_H if PCCARD
Jean-Christophe PLAGNIOL-VILLARD6732ae52012-07-12 23:35:02 +0800378 select PINCTRL
379 select PINCTRL_AT91 if USE_OF
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100380 help
Nicolas Ferre929e9942012-03-15 12:21:12 +0100381 This enables support for systems based on Atmel
382 AT91RM9200 and AT91SAM9* processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100383
Russell King93e22562012-10-12 14:20:52 +0100384config ARCH_CLPS711X
385 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
Alexander Shiyana3b8d4a2012-10-09 20:05:56 +0400386 select ARCH_REQUIRE_GPIOLIB
Alexander Shiyanea7d1bc2012-11-17 17:57:11 +0400387 select AUTO_ZRELADDR
Alexander Shiyanc99f72a2013-05-13 21:07:32 +0400388 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100389 select COMMON_CLK
390 select CPU_ARM720T
Alexander Shiyan4a8355c2012-10-10 19:45:27 +0400391 select GENERIC_CLOCKEVENTS
Alexander Shiyan65976192013-05-13 21:07:36 +0400392 select MFD_SYSCON
Alexander Shiyan99f04c82012-11-17 17:57:14 +0400393 select MULTI_IRQ_HANDLER
Alexander Shiyan0d8be812012-11-17 17:57:13 +0400394 select SPARSE_IRQ
Russell King93e22562012-10-12 14:20:52 +0100395 help
396 Support for Cirrus Logic 711x/721x/731x based boards.
397
Russell King788c9702009-04-26 14:21:59 +0100398config ARCH_GEMINI
399 bool "Cortina Systems Gemini"
Russell King788c9702009-04-26 14:21:59 +0100400 select ARCH_REQUIRE_GPIOLIB
Linus Walleijf3372c02013-10-01 12:57:20 +0200401 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100402 select CPU_FA526
Linus Walleijf3372c02013-10-01 12:57:20 +0200403 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100404 help
405 Support for the Cortina Systems Gemini family SoCs
406
Linus Torvalds1da177e2005-04-16 15:20:36 -0700407config ARCH_EBSA110
408 bool "EBSA-110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100409 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000410 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100411 select ISA
Rob Herringc334bc12012-03-04 22:03:33 -0600412 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400413 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100414 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415 help
416 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000417 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700418 Ethernet interface, two PCMCIA sockets, two serial ports and a
419 parallel port.
420
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +0100421config ARCH_EFM32
422 bool "Energy Micro efm32"
423 depends on !MMU
424 select ARCH_REQUIRE_GPIOLIB
425 select ARM_NVIC
426 # CLKSRC_MMIO is wrong here, but needed until a proper fix is merged,
427 # i.e. CLKSRC_EFM32 selecting CLKSRC_MMIO
428 select CLKSRC_MMIO
429 select CLKSRC_OF
430 select COMMON_CLK
431 select CPU_V7M
432 select GENERIC_CLOCKEVENTS
433 select NO_DMA
434 select NO_IOPORT
435 select SPARSE_IRQ
436 select USE_OF
437 help
438 Support for Energy Micro's (now Silicon Labs) efm32 Giant Gecko
439 processors.
440
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000441config ARCH_EP93XX
442 bool "EP93xx-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100443 select ARCH_HAS_HOLES_MEMORYMODEL
444 select ARCH_REQUIRE_GPIOLIB
445 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000446 select ARM_AMBA
447 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100448 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100449 select CPU_ARM920T
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100450 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000451 help
452 This enables support for the Cirrus EP93xx series of CPUs.
453
Linus Torvalds1da177e2005-04-16 15:20:36 -0700454config ARCH_FOOTBRIDGE
455 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000456 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700457 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000458 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200459 select HAVE_IDE
Rob Herring8ef6e622012-03-01 20:48:12 -0600460 select NEED_MACH_IO_H if !MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400461 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000462 help
463 Support for systems based on the DC21285 companion chip
464 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700465
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100466config ARCH_NETX
467 bool "Hilscher NetX based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100468 select ARM_VIC
Russell King234b6ced2011-05-08 14:09:47 +0100469 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000470 select CPU_ARM926T
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100471 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000472 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100473 This enables support for systems based on the Hilscher NetX Soc
474
Russell King3b938be2007-05-12 11:25:44 +0100475config ARCH_IOP13XX
476 bool "IOP13xx-based"
477 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100478 select CPU_XSC3
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400479 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600480 select NEED_RET_TO_USER
Russell Kingb1b3f492012-10-06 17:12:25 +0100481 select PCI
482 select PLAT_IOP
483 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100484 help
485 Support for Intel's IOP13XX (XScale) family of processors.
486
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100487config ARCH_IOP32X
488 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100489 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100490 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000491 select CPU_XSCALE
Linus Walleije9004f52013-09-09 11:59:51 +0200492 select GPIO_IOP
Rob Herring13a50452012-02-07 09:28:22 -0600493 select NEED_RET_TO_USER
Russell Kingf7e68bb2005-05-05 14:49:01 +0100494 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100495 select PLAT_IOP
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000496 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100497 Support for Intel's 80219 and IOP32X (XScale) family of
498 processors.
499
500config ARCH_IOP33X
501 bool "IOP33x-based"
502 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100503 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000504 select CPU_XSCALE
Linus Walleije9004f52013-09-09 11:59:51 +0200505 select GPIO_IOP
Rob Herring13a50452012-02-07 09:28:22 -0600506 select NEED_RET_TO_USER
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100507 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100508 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100509 help
510 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700511
Russell King3b938be2007-05-12 11:25:44 +0100512config ARCH_IXP4XX
513 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100514 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500515 select ARCH_HAS_DMA_SET_COHERENT_MASK
Ben Dooksd10d2d42013-02-01 09:41:37 +0000516 select ARCH_SUPPORTS_BIG_ENDIAN
Russell Kingb1b3f492012-10-06 17:12:25 +0100517 select ARCH_REQUIRE_GPIOLIB
Russell King234b6ced2011-05-08 14:09:47 +0100518 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000519 select CPU_XSCALE
Russell Kingb1b3f492012-10-06 17:12:25 +0100520 select DMABOUNCE if PCI
Russell King3b938be2007-05-12 11:25:44 +0100521 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100522 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600523 select NEED_MACH_IO_H
Florian Fainelli9296d942013-04-09 14:29:26 +0200524 select USB_EHCI_BIG_ENDIAN_DESC
Russell King171b3f02013-09-12 21:24:42 +0100525 select USB_EHCI_BIG_ENDIAN_MMIO
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100526 help
Russell King3b938be2007-05-12 11:25:44 +0100527 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100528
Saeed Bisharaedabd382009-08-06 15:12:43 +0300529config ARCH_DOVE
530 bool "Marvell Dove"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300531 select ARCH_REQUIRE_GPIOLIB
Sebastian Hesselbarth756b2532013-05-02 19:56:12 +0100532 select CPU_PJ4
Saeed Bisharaedabd382009-08-06 15:12:43 +0300533 select GENERIC_CLOCKEVENTS
Russell King0f81bd42012-09-09 20:34:13 +0100534 select MIGHT_HAVE_PCI
Russell King171b3f02013-09-12 21:24:42 +0100535 select MVEBU_MBUS
Sebastian Hesselbarth9139acd2012-11-19 10:39:55 +0100536 select PINCTRL
537 select PINCTRL_DOVE
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200538 select PLAT_ORION_LEGACY
Russell King0f81bd42012-09-09 20:34:13 +0100539 select USB_ARCH_HAS_EHCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300540 help
541 Support for the Marvell Dove SoC 88AP510
542
Saeed Bishara651c74c2008-06-22 22:45:06 +0200543config ARCH_KIRKWOOD
544 bool "Marvell Kirkwood"
Andrew Lunn0e2ee0c2013-01-27 11:07:23 +0100545 select ARCH_HAS_CPUFREQ
Erik Benadaa8865652009-05-28 17:08:55 -0700546 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100547 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200548 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100549 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100550 select PCI
Jason Gunthorpe1dc831b2012-11-21 00:19:06 -0700551 select PCI_QUIRKS
Andrew Lunnf9e75922012-11-17 17:00:44 +0100552 select PINCTRL
553 select PINCTRL_KIRKWOOD
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200554 select PLAT_ORION_LEGACY
Saeed Bishara651c74c2008-06-22 22:45:06 +0200555 help
556 Support for the following Marvell Kirkwood series SoCs:
557 88F6180, 88F6192 and 88F6281.
558
Russell King788c9702009-04-26 14:21:59 +0100559config ARCH_MV78XX0
560 bool "Marvell MV78xx0"
Erik Benadaa8865652009-05-28 17:08:55 -0700561 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100562 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100563 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100564 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100565 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200566 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100567 help
568 Support for the following Marvell MV78xx0 series SoCs:
569 MV781x0, MV782x0.
570
571config ARCH_ORION5X
572 bool "Marvell Orion"
573 depends on MMU
Erik Benadaa8865652009-05-28 17:08:55 -0700574 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100575 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100576 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100577 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100578 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200579 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100580 help
581 Support for the following Marvell Orion 5x series SoCs:
582 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
583 Orion-2 (5281), Orion-1-90 (6183).
584
585config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500586 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100587 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100588 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100589 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100590 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100591 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800592 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800593 select IRQ_DOMAIN
Haojian Zhuang0f374562013-04-21 16:53:02 +0800594 select MULTI_IRQ_HANDLER
Axel Lin7c8f86a2012-11-28 14:42:35 +0800595 select PINCTRL
Russell King788c9702009-04-26 14:21:59 +0100596 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400597 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100598 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500599 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100600
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100601config ARCH_KS8695
602 bool "Micrel/Kendin KS8695"
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100603 select ARCH_REQUIRE_GPIOLIB
Linus Walleijc7e783d2012-08-29 20:27:22 +0200604 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100605 select CPU_ARM922T
Linus Walleijc7e783d2012-08-29 20:27:22 +0200606 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100607 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100608 help
609 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
610 System-on-Chip devices.
611
Russell King788c9702009-04-26 14:21:59 +0100612config ARCH_W90X900
613 bool "Nuvoton W90X900 CPU"
wanzongshunc52d3d62009-06-10 15:49:32 +0100614 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100615 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100616 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100617 select CPU_ARM926T
wanzongshun58b53692009-08-14 15:36:44 +0100618 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200619 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100620 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
621 At present, the w90x900 has been renamed nuc900, regarding
622 the ARM series product line, you can login the following
623 link address to know more.
624
625 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
626 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400627
Russell King93e22562012-10-12 14:20:52 +0100628config ARCH_LPC32XX
629 bool "NXP LPC32XX"
630 select ARCH_REQUIRE_GPIOLIB
631 select ARM_AMBA
Russell King40737232011-01-06 22:32:52 +0000632 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100633 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100634 select CPU_ARM926T
635 select GENERIC_CLOCKEVENTS
636 select HAVE_IDE
637 select HAVE_PWM
638 select USB_ARCH_HAS_OHCI
639 select USE_OF
640 help
641 Support for the NXP LPC32XX family of processors
642
Linus Torvalds1da177e2005-04-16 15:20:36 -0700643config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700644 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100645 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100646 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100647 select ARCH_MTD_XIP
648 select ARCH_REQUIRE_GPIOLIB
649 select ARM_CPU_SUSPEND if PM
650 select AUTO_ZRELADDR
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100651 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100652 select CLKSRC_MMIO
Eric Miao981d0f32007-07-24 01:22:43 +0100653 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800654 select GPIO_PXA
Russell Kingb1b3f492012-10-06 17:12:25 +0100655 select HAVE_IDE
656 select MULTI_IRQ_HANDLER
Eric Miaobd5ce432009-01-20 12:06:01 +0800657 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800658 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000659 help
eric miao2c8086a2007-09-11 19:13:17 -0700660 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700661
Stephen Boyd4f204112013-12-30 13:15:33 -0800662config ARCH_MSM_NODT
Russell King788c9702009-04-26 14:21:59 +0100663 bool "Qualcomm MSM"
Stephen Boyd4f204112013-12-30 13:15:33 -0800664 select ARCH_MSM
Pavel Machek923a0812010-06-02 11:11:12 -0700665 select ARCH_REQUIRE_GPIOLIB
Stephen Boyd8cc7f532013-06-17 10:43:19 -0700666 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100667 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800668 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800669 Support for Qualcomm MSM/QSD based systems. This runs on the
670 apps processor of the MSM/QSD and depends on a shared memory
671 interface to the modem processor which runs the baseband
672 stack and controls some vital subsystems
673 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800674
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +0100675config ARCH_SHMOBILE_LEGACY
Laurent Pinchart0d9fd612013-11-28 17:27:29 +0100676 bool "Renesas ARM SoCs (non-multiplatform)"
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +0100677 select ARCH_SHMOBILE
Magnus Damm69469992013-06-10 18:46:47 +0900678 select ARM_PATCH_PHYS_VIRT
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900679 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100680 select GENERIC_CLOCKEVENTS
Stephen Boyd4c3ffff2013-02-27 15:28:14 -0800681 select HAVE_ARM_SCU if SMP
Stephen Boyda894fcc2013-02-15 16:02:20 -0800682 select HAVE_ARM_TWD if SMP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900683 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000684 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000685 select MIGHT_HAVE_CACHE_L2X0
Magnus Damm60f14352010-12-28 08:26:52 +0000686 select MULTI_IRQ_HANDLER
Russell Kingb1b3f492012-10-06 17:12:25 +0100687 select NO_IOPORT
Laurent Pinchart2cd3c922013-05-31 05:00:27 +0200688 select PINCTRL
Russell Kingb1b3f492012-10-06 17:12:25 +0100689 select PM_GENERIC_DOMAINS if PM
690 select SPARSE_IRQ
Magnus Dammc793c1b2010-02-05 11:14:49 +0000691 help
Laurent Pinchart0d9fd612013-11-28 17:27:29 +0100692 Support for Renesas ARM SoC platforms using a non-multiplatform
693 kernel. This includes the SH-Mobile, R-Mobile, EMMA-Mobile, R-Car
694 and RZ families.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000695
Linus Torvalds1da177e2005-04-16 15:20:36 -0700696config ARCH_RPC
697 bool "RiscPC"
698 select ARCH_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100699 select ARCH_MAY_HAVE_PC_FDC
Russell King07f841b2008-10-01 17:11:06 +0100700 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000701 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100702 select FIQ
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200703 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100704 select HAVE_PATA_PLATFORM
705 select ISA_DMA_API
Rob Herringc334bc12012-03-04 22:03:33 -0600706 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400707 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100708 select NO_IOPORT
Arnd Bergmannb4811ba2013-03-13 17:36:37 +0100709 select VIRT_TO_BUS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700710 help
711 On the Acorn Risc-PC, Linux can support the internal IDE disk and
712 CD-ROM interface, serial and parallel port, and the floppy drive.
713
714config ARCH_SA1100
715 bool "SA1100-based"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100716 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100717 select ARCH_MTD_XIP
Michael Buesch7444a722008-07-25 01:46:11 -0700718 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100719 select ARCH_SPARSEMEM_ENABLE
720 select CLKDEV_LOOKUP
721 select CLKSRC_MMIO
722 select CPU_FREQ
723 select CPU_SA1100
724 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200725 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100726 select ISA
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400727 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100728 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000729 help
730 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700731
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900732config ARCH_S3C24XX
733 bool "Samsung S3C24XX SoCs"
Ben Dooks9d56c022009-07-30 23:23:25 +0100734 select ARCH_HAS_CPUFREQ
Kukjin Kim53650432013-04-04 09:04:30 +0900735 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100736 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200737 select CLKSRC_SAMSUNG_PWM
Romain Naour7f78b6e2013-01-09 18:47:04 -0800738 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900739 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900740 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900741 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100742 select HAVE_S3C_RTC if RTC_CLASS
Heiko Stuebner17453dd2013-03-07 12:38:25 +0900743 select MULTI_IRQ_HANDLER
Rob Herringc334bc12012-03-04 22:03:33 -0600744 select NEED_MACH_IO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900745 select SAMSUNG_ATAGS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700746 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900747 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
748 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
749 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
750 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900751
Ben Dooksa08ab632008-10-21 14:06:39 +0100752config ARCH_S3C64XX
753 bool "Samsung S3C64XX"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100754 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900755 select ARCH_REQUIRE_GPIOLIB
Tomasz Figa1db02872013-10-16 21:10:54 +0200756 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100757 select ARM_VIC
758 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200759 select CLKSRC_SAMSUNG_PWM
Tomasz Figab69f4602013-08-26 02:00:38 +0900760 select COMMON_CLK
Tomasz Figa70bacad2013-10-21 06:56:51 +0900761 select CPU_V6K
Romain Naour04a49b72013-01-09 18:47:04 -0800762 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900763 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900764 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900765 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100766 select HAVE_TCM
Russell Kingb1b3f492012-10-06 17:12:25 +0100767 select NO_IOPORT
768 select PLAT_SAMSUNG
Tomasz Figa6e2d9e92013-10-06 09:06:27 +0900769 select PM_GENERIC_DOMAINS
Russell Kingb1b3f492012-10-06 17:12:25 +0100770 select S3C_DEV_NAND
771 select S3C_GPIO_TRACK
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900772 select SAMSUNG_ATAGS
Tomasz Figa6e2d9e92013-10-06 09:06:27 +0900773 select SAMSUNG_WAKEMASK
Tomasz Figa88f59732013-06-17 23:45:37 +0900774 select SAMSUNG_WDT_RESET
Russell Kingb1b3f492012-10-06 17:12:25 +0100775 select USB_ARCH_HAS_OHCI
Ben Dooksa08ab632008-10-21 14:06:39 +0100776 help
777 Samsung S3C64XX series based systems
778
Kukjin Kim49b7a492010-09-07 15:47:18 +0900779config ARCH_S5P64X0
780 bool "Samsung S5P6440 S5P6450"
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900781 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200782 select CLKSRC_SAMSUNG_PWM
Russell Kingb1b3f492012-10-06 17:12:25 +0100783 select CPU_V6
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900784 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900785 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900786 select HAVE_S3C2410_I2C if I2C
Russell Kingb1b3f492012-10-06 17:12:25 +0100787 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim754961a2010-11-13 16:11:46 +0900788 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500789 select NEED_MACH_GPIO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900790 select SAMSUNG_ATAGS
Russell King171b3f02013-09-12 21:24:42 +0100791 select SAMSUNG_WDT_RESET
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900792 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900793 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
794 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900795
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200796config ARCH_S5PC100
797 bool "Samsung S5PC100"
Kukjin Kim53650432013-04-04 09:04:30 +0900798 select ARCH_REQUIRE_GPIOLIB
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900799 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200800 select CLKSRC_SAMSUNG_PWM
Byungho Min5a7652f2009-06-23 21:39:42 +0900801 select CPU_V7
Romain Naour6a5a2e32013-01-09 18:47:04 -0800802 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900803 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900804 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900805 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100806 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500807 select NEED_MACH_GPIO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900808 select SAMSUNG_ATAGS
Russell King171b3f02013-09-12 21:24:42 +0100809 select SAMSUNG_WDT_RESET
Byungho Min5a7652f2009-06-23 21:39:42 +0900810 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200811 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900812
Kukjin Kim170f4e42010-02-24 16:40:44 +0900813config ARCH_S5PV210
814 bool "Samsung S5PV210/S5PC110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100815 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900816 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100817 select ARCH_SPARSEMEM_ENABLE
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900818 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200819 select CLKSRC_SAMSUNG_PWM
Russell Kingb1b3f492012-10-06 17:12:25 +0100820 select CPU_V7
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900821 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900822 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900823 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900824 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100825 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500826 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400827 select NEED_MACH_MEMORY_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900828 select SAMSUNG_ATAGS
Kukjin Kim170f4e42010-02-24 16:40:44 +0900829 help
830 Samsung S5PV210/S5PC110 series based systems
831
Kukjin Kim83014572011-11-06 13:54:56 +0900832config ARCH_EXYNOS
Russell King93e22562012-10-12 14:20:52 +0100833 bool "Samsung EXYNOS"
Russell Kingb1b3f492012-10-06 17:12:25 +0100834 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900835 select ARCH_HAS_HOLES_MEMORYMODEL
Tomasz Figae245f962013-06-19 01:26:42 +0900836 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100837 select ARCH_SPARSEMEM_ENABLE
Tomasz Figae245f962013-06-19 01:26:42 +0900838 select ARM_GIC
Olof Johansson340fcb52013-04-26 11:47:45 -0700839 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100840 select CPU_V7
841 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900842 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900843 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100844 select HAVE_S3C_RTC if RTC_CLASS
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400845 select NEED_MACH_MEMORY_H
Tomasz Figa6e726ea2013-06-15 09:28:55 +0900846 select SPARSE_IRQ
Tomasz Figaf8b1ac02013-06-15 09:01:11 +0900847 select USE_OF
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900848 help
Kukjin Kim83014572011-11-06 13:54:56 +0900849 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900850
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100851config ARCH_DAVINCI
852 bool "TI DaVinci"
Russell Kingb1b3f492012-10-06 17:12:25 +0100853 select ARCH_HAS_HOLES_MEMORYMODEL
David Brownelldce11152008-09-07 23:41:04 -0700854 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100855 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700856 select GENERIC_ALLOCATOR
Russell Kingb1b3f492012-10-06 17:12:25 +0100857 select GENERIC_CLOCKEVENTS
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100858 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100859 select HAVE_IDE
Matt Porter3ad7a422013-03-06 11:15:31 -0500860 select TI_PRIV_EDMA
Sekhar Nori689e3312012-08-28 15:27:52 +0530861 select USE_OF
Russell Kingb1b3f492012-10-06 17:12:25 +0100862 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100863 help
864 Support for TI's DaVinci platform.
865
Tony Lindgrena0694862013-01-11 11:24:20 -0800866config ARCH_OMAP1
867 bool "TI OMAP1"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600868 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100869 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100870 select ARCH_HAS_HOLES_MEMORYMODEL
Tony Lindgrena0694862013-01-11 11:24:20 -0800871 select ARCH_OMAP
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100872 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200873 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100874 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100875 select GENERIC_CLOCKEVENTS
Tony Lindgrena0694862013-01-11 11:24:20 -0800876 select GENERIC_IRQ_CHIP
Tony Lindgrena0694862013-01-11 11:24:20 -0800877 select HAVE_IDE
878 select IRQ_DOMAIN
879 select NEED_MACH_IO_H if PCCARD
880 select NEED_MACH_MEMORY_H
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100881 help
Tony Lindgrena0694862013-01-11 11:24:20 -0800882 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
Binghua Duan02c981c2011-07-08 17:40:12 +0800883
Linus Torvalds1da177e2005-04-16 15:20:36 -0700884endchoice
885
Rob Herring387798b2012-09-06 13:41:12 -0500886menu "Multiple platform selection"
887 depends on ARCH_MULTIPLATFORM
888
889comment "CPU Core family selection"
890
Rob Herring387798b2012-09-06 13:41:12 -0500891config ARCH_MULTI_V4T
892 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500893 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100894 select ARCH_MULTI_V4_V5
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200895 select CPU_ARM920T if !(CPU_ARM7TDMI || CPU_ARM720T || \
896 CPU_ARM740T || CPU_ARM9TDMI || CPU_ARM922T || \
897 CPU_ARM925T || CPU_ARM940T)
Rob Herring387798b2012-09-06 13:41:12 -0500898
899config ARCH_MULTI_V5
900 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500901 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100902 select ARCH_MULTI_V4_V5
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200903 select CPU_ARM926T if (!CPU_ARM946E || CPU_ARM1020 || \
904 CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || \
905 CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_FEROCEON)
Rob Herring387798b2012-09-06 13:41:12 -0500906
907config ARCH_MULTI_V4_V5
908 bool
909
910config ARCH_MULTI_V6
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800911 bool "ARMv6 based platforms (ARM11)"
Rob Herring387798b2012-09-06 13:41:12 -0500912 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100913 select CPU_V6
Rob Herring387798b2012-09-06 13:41:12 -0500914
915config ARCH_MULTI_V7
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800916 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -0500917 default y
918 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100919 select CPU_V7
Rob Herring90bc8ac2014-01-31 15:32:02 -0600920 select HAVE_SMP
Rob Herring387798b2012-09-06 13:41:12 -0500921
922config ARCH_MULTI_V6_V7
923 bool
Rob Herring9352b052014-01-31 15:36:10 -0600924 select MIGHT_HAVE_CACHE_L2X0
Rob Herring387798b2012-09-06 13:41:12 -0500925
926config ARCH_MULTI_CPU_AUTO
927 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
928 select ARCH_MULTI_V5
929
930endmenu
931
Russell Kingccf50e22010-03-15 19:03:06 +0000932#
933# This is sorted alphabetically by mach-* pathname. However, plat-*
934# Kconfigs may be included either alphabetically (according to the
935# plat- suffix) or along side the corresponding mach-* source.
936#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +0200937source "arch/arm/mach-mvebu/Kconfig"
938
Russell King95b8f202010-01-14 11:43:54 +0000939source "arch/arm/mach-at91/Kconfig"
940
Christian Daudt8ac49e02012-11-19 09:46:10 -0800941source "arch/arm/mach-bcm/Kconfig"
942
Stephen Warrenf1ac9222013-03-11 22:40:18 -0600943source "arch/arm/mach-bcm2835/Kconfig"
944
Sebastian Hesselbarth1c37fa12013-09-09 14:36:19 +0200945source "arch/arm/mach-berlin/Kconfig"
946
Linus Torvalds1da177e2005-04-16 15:20:36 -0700947source "arch/arm/mach-clps711x/Kconfig"
948
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300949source "arch/arm/mach-cns3xxx/Kconfig"
950
Russell King95b8f202010-01-14 11:43:54 +0000951source "arch/arm/mach-davinci/Kconfig"
952
953source "arch/arm/mach-dove/Kconfig"
954
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000955source "arch/arm/mach-ep93xx/Kconfig"
956
Linus Torvalds1da177e2005-04-16 15:20:36 -0700957source "arch/arm/mach-footbridge/Kconfig"
958
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200959source "arch/arm/mach-gemini/Kconfig"
960
Rob Herring387798b2012-09-06 13:41:12 -0500961source "arch/arm/mach-highbank/Kconfig"
962
Haojian Zhuang389ee0c2013-12-20 10:52:56 +0800963source "arch/arm/mach-hisi/Kconfig"
964
Linus Torvalds1da177e2005-04-16 15:20:36 -0700965source "arch/arm/mach-integrator/Kconfig"
966
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100967source "arch/arm/mach-iop32x/Kconfig"
968
969source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700970
Dan Williams285f5fa2006-12-07 02:59:39 +0100971source "arch/arm/mach-iop13xx/Kconfig"
972
Linus Torvalds1da177e2005-04-16 15:20:36 -0700973source "arch/arm/mach-ixp4xx/Kconfig"
974
Santosh Shilimkar828989a2013-06-10 11:27:13 -0400975source "arch/arm/mach-keystone/Kconfig"
976
Russell King95b8f202010-01-14 11:43:54 +0000977source "arch/arm/mach-kirkwood/Kconfig"
978
979source "arch/arm/mach-ks8695/Kconfig"
980
Russell King95b8f202010-01-14 11:43:54 +0000981source "arch/arm/mach-msm/Kconfig"
982
Jonas Jensen17723fd32013-12-18 13:58:45 +0100983source "arch/arm/mach-moxart/Kconfig"
984
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200985source "arch/arm/mach-mv78xx0/Kconfig"
986
Shawn Guo3995eb82012-09-13 19:48:07 +0800987source "arch/arm/mach-imx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700988
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800989source "arch/arm/mach-mxs/Kconfig"
990
Russell King95b8f202010-01-14 11:43:54 +0000991source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800992
Russell King95b8f202010-01-14 11:43:54 +0000993source "arch/arm/mach-nomadik/Kconfig"
Russell King95b8f202010-01-14 11:43:54 +0000994
Daniel Tang9851ca52013-06-11 18:40:17 +1000995source "arch/arm/mach-nspire/Kconfig"
996
Tony Lindgrend48af152005-07-10 19:58:17 +0100997source "arch/arm/plat-omap/Kconfig"
998
999source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001000
Tony Lindgren1dbae812005-11-10 14:26:51 +00001001source "arch/arm/mach-omap2/Kconfig"
1002
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001003source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001004
Rob Herring387798b2012-09-06 13:41:12 -05001005source "arch/arm/mach-picoxcell/Kconfig"
1006
Russell King95b8f202010-01-14 11:43:54 +00001007source "arch/arm/mach-pxa/Kconfig"
1008source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001009
Russell King95b8f202010-01-14 11:43:54 +00001010source "arch/arm/mach-mmp/Kconfig"
1011
1012source "arch/arm/mach-realview/Kconfig"
1013
Heiko Stuebnerd63dc052013-06-02 23:09:41 +02001014source "arch/arm/mach-rockchip/Kconfig"
1015
Russell King95b8f202010-01-14 11:43:54 +00001016source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001017
Ben Dookscf383672009-11-10 00:14:58 +00001018source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001019
Rob Herring387798b2012-09-06 13:41:12 -05001020source "arch/arm/mach-socfpga/Kconfig"
1021
Arnd Bergmanna7ed0992012-12-02 15:12:47 +01001022source "arch/arm/mach-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001023
Srinivas Kandagatla65ebcc12013-06-25 12:15:10 +01001024source "arch/arm/mach-sti/Kconfig"
1025
Kukjin Kim85fd6d62012-02-06 09:38:19 +09001026source "arch/arm/mach-s3c24xx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001027
Ben Dooks431107e2010-01-26 10:11:04 +09001028source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001029
Kukjin Kim49b7a492010-09-07 15:47:18 +09001030source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001031
Byungho Min5a7652f2009-06-23 21:39:42 +09001032source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001033
Kukjin Kim170f4e42010-02-24 16:40:44 +09001034source "arch/arm/mach-s5pv210/Kconfig"
1035
Kukjin Kim83014572011-11-06 13:54:56 +09001036source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001037
Russell King882d01f2010-03-02 23:40:15 +00001038source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001039
Maxime Ripard3b526342012-11-08 12:40:16 +01001040source "arch/arm/mach-sunxi/Kconfig"
1041
Barry Song156a0992012-08-23 13:41:58 +08001042source "arch/arm/mach-prima2/Kconfig"
1043
Erik Gillingc5f80062010-01-21 16:53:02 -08001044source "arch/arm/mach-tegra/Kconfig"
1045
Russell King95b8f202010-01-14 11:43:54 +00001046source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001047
Russell King95b8f202010-01-14 11:43:54 +00001048source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001049
1050source "arch/arm/mach-versatile/Kconfig"
1051
Russell Kingceade892010-02-11 21:44:53 +00001052source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001053source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001054
Marc Zyngier2a0ba732012-10-05 13:47:39 +01001055source "arch/arm/mach-virt/Kconfig"
1056
Tony Prisk6f35f9a2012-10-11 20:13:09 +13001057source "arch/arm/mach-vt8500/Kconfig"
1058
wanzongshun7ec80dd2008-12-03 03:55:38 +01001059source "arch/arm/mach-w90x900/Kconfig"
1060
Josh Cartwright9a45eb62012-11-19 11:38:29 -06001061source "arch/arm/mach-zynq/Kconfig"
1062
Linus Torvalds1da177e2005-04-16 15:20:36 -07001063# Definitions to make life easier
1064config ARCH_ACORN
1065 bool
1066
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001067config PLAT_IOP
1068 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001069 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001070
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001071config PLAT_ORION
1072 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001073 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +01001074 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001075 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +02001076 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001077
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +02001078config PLAT_ORION_LEGACY
1079 bool
1080 select PLAT_ORION
1081
Eric Miaobd5ce432009-01-20 12:06:01 +08001082config PLAT_PXA
1083 bool
1084
Russell Kingf4b8b312010-01-14 12:48:06 +00001085config PLAT_VERSATILE
1086 bool
1087
Russell Kinge3887712010-01-14 13:30:16 +00001088config ARM_TIMER_SP804
1089 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001090 select CLKSRC_MMIO
Rob Herring7a0eca72013-03-25 11:23:52 -05001091 select CLKSRC_OF if OF
Russell Kinge3887712010-01-14 13:30:16 +00001092
Alexandre Courbotd9a1bea2013-11-24 15:30:46 +09001093source "arch/arm/firmware/Kconfig"
1094
Linus Torvalds1da177e2005-04-16 15:20:36 -07001095source arch/arm/mm/Kconfig
1096
Russell King958cab02011-12-11 10:04:00 +00001097config ARM_NR_BANKS
1098 int
1099 default 16 if ARCH_EP93XX
1100 default 8
1101
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001102config IWMMXT
Russell King698613b2013-04-03 16:33:26 +01001103 bool "Enable iWMMXt support" if !CPU_PJ4
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001104 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
Russell King698613b2013-04-03 16:33:26 +01001105 default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001106 help
1107 Enable support for iWMMXt context switching at run time if
1108 running on a CPU that supports it.
1109
eric miao52108642010-12-13 09:42:34 +01001110config MULTI_IRQ_HANDLER
1111 bool
1112 help
1113 Allow each machine to specify it's own IRQ handler at run time.
1114
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001115if !MMU
1116source "arch/arm/Kconfig-nommu"
1117endif
1118
Gregory CLEMENT3e0a07f2013-06-23 10:17:11 +01001119config PJ4B_ERRATA_4742
1120 bool "PJ4B Errata 4742: IDLE Wake Up Commands can Cause the CPU Core to Cease Operation"
1121 depends on CPU_PJ4B && MACH_ARMADA_370
1122 default y
1123 help
1124 When coming out of either a Wait for Interrupt (WFI) or a Wait for
1125 Event (WFE) IDLE states, a specific timing sensitivity exists between
1126 the retiring WFI/WFE instructions and the newly issued subsequent
1127 instructions. This sensitivity can result in a CPU hang scenario.
1128 Workaround:
1129 The software must insert either a Data Synchronization Barrier (DSB)
1130 or Data Memory Barrier (DMB) command immediately after the WFI/WFE
1131 instruction
1132
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001133config ARM_ERRATA_326103
1134 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1135 depends on CPU_V6
1136 help
1137 Executing a SWP instruction to read-only memory does not set bit 11
1138 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1139 treat the access as a read, preventing a COW from occurring and
1140 causing the faulting task to livelock.
1141
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001142config ARM_ERRATA_411920
1143 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001144 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001145 help
1146 Invalidation of the Instruction Cache operation can
1147 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1148 It does not affect the MPCore. This option enables the ARM Ltd.
1149 recommended workaround.
1150
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001151config ARM_ERRATA_430973
1152 bool "ARM errata: Stale prediction on replaced interworking branch"
1153 depends on CPU_V7
1154 help
1155 This option enables the workaround for the 430973 Cortex-A8
1156 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1157 interworking branch is replaced with another code sequence at the
1158 same virtual address, whether due to self-modifying code or virtual
1159 to physical address re-mapping, Cortex-A8 does not recover from the
1160 stale interworking branch prediction. This results in Cortex-A8
1161 executing the new code sequence in the incorrect ARM or Thumb state.
1162 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1163 and also flushes the branch target cache at every context switch.
1164 Note that setting specific bits in the ACTLR register may not be
1165 available in non-secure mode.
1166
Catalin Marinas855c5512009-04-30 17:06:15 +01001167config ARM_ERRATA_458693
1168 bool "ARM errata: Processor deadlock when a false hazard is created"
1169 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001170 depends on !ARCH_MULTIPLATFORM
Catalin Marinas855c5512009-04-30 17:06:15 +01001171 help
1172 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1173 erratum. For very specific sequences of memory operations, it is
1174 possible for a hazard condition intended for a cache line to instead
1175 be incorrectly associated with a different cache line. This false
1176 hazard might then cause a processor deadlock. The workaround enables
1177 the L1 caching of the NEON accesses and disables the PLD instruction
1178 in the ACTLR register. Note that setting specific bits in the ACTLR
1179 register may not be available in non-secure mode.
1180
Catalin Marinas0516e462009-04-30 17:06:20 +01001181config ARM_ERRATA_460075
1182 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1183 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001184 depends on !ARCH_MULTIPLATFORM
Catalin Marinas0516e462009-04-30 17:06:20 +01001185 help
1186 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1187 erratum. Any asynchronous access to the L2 cache may encounter a
1188 situation in which recent store transactions to the L2 cache are lost
1189 and overwritten with stale memory contents from external memory. The
1190 workaround disables the write-allocate mode for the L2 cache via the
1191 ACTLR register. Note that setting specific bits in the ACTLR register
1192 may not be available in non-secure mode.
1193
Will Deacon9f050272010-09-14 09:51:43 +01001194config ARM_ERRATA_742230
1195 bool "ARM errata: DMB operation may be faulty"
1196 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001197 depends on !ARCH_MULTIPLATFORM
Will Deacon9f050272010-09-14 09:51:43 +01001198 help
1199 This option enables the workaround for the 742230 Cortex-A9
1200 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1201 between two write operations may not ensure the correct visibility
1202 ordering of the two writes. This workaround sets a specific bit in
1203 the diagnostic register of the Cortex-A9 which causes the DMB
1204 instruction to behave as a DSB, ensuring the correct behaviour of
1205 the two writes.
1206
Will Deacona672e992010-09-14 09:53:02 +01001207config ARM_ERRATA_742231
1208 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1209 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001210 depends on !ARCH_MULTIPLATFORM
Will Deacona672e992010-09-14 09:53:02 +01001211 help
1212 This option enables the workaround for the 742231 Cortex-A9
1213 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1214 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1215 accessing some data located in the same cache line, may get corrupted
1216 data due to bad handling of the address hazard when the line gets
1217 replaced from one of the CPUs at the same time as another CPU is
1218 accessing it. This workaround sets specific bits in the diagnostic
1219 register of the Cortex-A9 which reduces the linefill issuing
1220 capabilities of the processor.
1221
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001222config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001223 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001224 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001225 help
1226 The PL310 L2 cache controller implements three types of Clean &
1227 Invalidate maintenance operations: by Physical Address
1228 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1229 They are architecturally defined to behave as the execution of a
1230 clean operation followed immediately by an invalidate operation,
1231 both performing to the same memory location. This functionality
1232 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001233 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001234
Jon Medhurst69155792013-06-07 10:35:35 +01001235config ARM_ERRATA_643719
1236 bool "ARM errata: LoUIS bit field in CLIDR register is incorrect"
1237 depends on CPU_V7 && SMP
1238 help
1239 This option enables the workaround for the 643719 Cortex-A9 (prior to
1240 r1p0) erratum. On affected cores the LoUIS bit field of the CLIDR
1241 register returns zero when it should return one. The workaround
1242 corrects this value, ensuring cache maintenance operations which use
1243 it behave as intended and avoiding data corruption.
1244
Will Deaconcdf357f2010-08-05 11:20:51 +01001245config ARM_ERRATA_720789
1246 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001247 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001248 help
1249 This option enables the workaround for the 720789 Cortex-A9 (prior to
1250 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1251 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1252 As a consequence of this erratum, some TLB entries which should be
1253 invalidated are not, resulting in an incoherency in the system page
1254 tables. The workaround changes the TLB flushing routines to invalidate
1255 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001256
Russell King1f0090a2011-03-16 23:35:25 +00001257config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001258 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001259 depends on CACHE_L2X0
1260 help
1261 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1262 operation (offset 0x7FC). This operation runs in background so that
1263 PL310 can handle normal accesses while it is in progress. Under very
1264 rare circumstances, due to this erratum, write data can be lost when
1265 PL310 treats a cacheable write transaction during a Clean &
1266 Invalidate by Way operation.
1267
Will Deacon475d92f2010-09-28 14:02:02 +01001268config ARM_ERRATA_743622
1269 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1270 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001271 depends on !ARCH_MULTIPLATFORM
Will Deacon475d92f2010-09-28 14:02:02 +01001272 help
1273 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001274 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001275 optimisation in the Cortex-A9 Store Buffer may lead to data
1276 corruption. This workaround sets a specific bit in the diagnostic
1277 register of the Cortex-A9 which disables the Store Buffer
1278 optimisation, preventing the defect from occurring. This has no
1279 visible impact on the overall performance or power consumption of the
1280 processor.
1281
Will Deacon9a27c272011-02-18 16:36:35 +01001282config ARM_ERRATA_751472
1283 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001284 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001285 depends on !ARCH_MULTIPLATFORM
Will Deacon9a27c272011-02-18 16:36:35 +01001286 help
1287 This option enables the workaround for the 751472 Cortex-A9 (prior
1288 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1289 completion of a following broadcasted operation if the second
1290 operation is received by a CPU before the ICIALLUIS has completed,
1291 potentially leading to corrupted entries in the cache or TLB.
1292
Will Deaconfa0ce402011-11-14 17:24:57 +01001293config PL310_ERRATA_753970
1294 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001295 depends on CACHE_PL310
1296 help
1297 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1298
1299 Under some condition the effect of cache sync operation on
1300 the store buffer still remains when the operation completes.
1301 This means that the store buffer is always asked to drain and
1302 this prevents it from merging any further writes. The workaround
1303 is to replace the normal offset of cache sync operation (0x730)
1304 by another offset targeting an unmapped PL310 register 0x740.
1305 This has the same effect as the cache sync operation: store buffer
1306 drain and waiting for all buffers empty.
1307
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001308config ARM_ERRATA_754322
1309 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1310 depends on CPU_V7
1311 help
1312 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1313 r3p*) erratum. A speculative memory access may cause a page table walk
1314 which starts prior to an ASID switch but completes afterwards. This
1315 can populate the micro-TLB with a stale entry which may be hit with
1316 the new ASID. This workaround places two dsb instructions in the mm
1317 switching code so that no page table walks can cross the ASID switch.
1318
Will Deacon5dab26af2011-03-04 12:38:54 +01001319config ARM_ERRATA_754327
1320 bool "ARM errata: no automatic Store Buffer drain"
1321 depends on CPU_V7 && SMP
1322 help
1323 This option enables the workaround for the 754327 Cortex-A9 (prior to
1324 r2p0) erratum. The Store Buffer does not have any automatic draining
1325 mechanism and therefore a livelock may occur if an external agent
1326 continuously polls a memory location waiting to observe an update.
1327 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1328 written polling loops from denying visibility of updates to memory.
1329
Catalin Marinas145e10e2011-08-15 11:04:41 +01001330config ARM_ERRATA_364296
1331 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
Fabio Estevamfd832472013-07-09 18:34:01 +01001332 depends on CPU_V6
Catalin Marinas145e10e2011-08-15 11:04:41 +01001333 help
1334 This options enables the workaround for the 364296 ARM1136
1335 r0p2 erratum (possible cache data corruption with
1336 hit-under-miss enabled). It sets the undocumented bit 31 in
1337 the auxiliary control register and the FI bit in the control
1338 register, thus disabling hit-under-miss without putting the
1339 processor into full low interrupt latency mode. ARM11MPCore
1340 is not affected.
1341
Will Deaconf630c1b2011-09-15 11:45:15 +01001342config ARM_ERRATA_764369
1343 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1344 depends on CPU_V7 && SMP
1345 help
1346 This option enables the workaround for erratum 764369
1347 affecting Cortex-A9 MPCore with two or more processors (all
1348 current revisions). Under certain timing circumstances, a data
1349 cache line maintenance operation by MVA targeting an Inner
1350 Shareable memory region may fail to proceed up to either the
1351 Point of Coherency or to the Point of Unification of the
1352 system. This workaround adds a DSB instruction before the
1353 relevant cache maintenance functions and sets a specific bit
1354 in the diagnostic control register of the SCU.
1355
Will Deacon11ed0ba2011-11-14 17:24:58 +01001356config PL310_ERRATA_769419
1357 bool "PL310 errata: no automatic Store Buffer drain"
1358 depends on CACHE_L2X0
1359 help
1360 On revisions of the PL310 prior to r3p2, the Store Buffer does
1361 not automatically drain. This can cause normal, non-cacheable
1362 writes to be retained when the memory system is idle, leading
1363 to suboptimal I/O performance for drivers using coherent DMA.
1364 This option adds a write barrier to the cpu_idle loop so that,
1365 on systems with an outer cache, the store buffer is drained
1366 explicitly.
1367
Simon Horman7253b852012-09-28 02:12:45 +01001368config ARM_ERRATA_775420
1369 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1370 depends on CPU_V7
1371 help
1372 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1373 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1374 operation aborts with MMU exception, it might cause the processor
1375 to deadlock. This workaround puts DSB before executing ISB if
1376 an abort may occur on cache maintenance.
1377
Catalin Marinas93dc6882013-03-26 23:35:04 +01001378config ARM_ERRATA_798181
1379 bool "ARM errata: TLBI/DSB failure on Cortex-A15"
1380 depends on CPU_V7 && SMP
1381 help
1382 On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
1383 adequately shooting down all use of the old entries. This
1384 option enables the Linux kernel workaround for this erratum
1385 which sends an IPI to the CPUs that are running the same ASID
1386 as the one being invalidated.
1387
Will Deacon84b65042013-08-20 17:29:55 +01001388config ARM_ERRATA_773022
1389 bool "ARM errata: incorrect instructions may be executed from loop buffer"
1390 depends on CPU_V7
1391 help
1392 This option enables the workaround for the 773022 Cortex-A15
1393 (up to r0p4) erratum. In certain rare sequences of code, the
1394 loop buffer may deliver incorrect instructions. This
1395 workaround disables the loop buffer to avoid the erratum.
1396
Linus Torvalds1da177e2005-04-16 15:20:36 -07001397endmenu
1398
1399source "arch/arm/common/Kconfig"
1400
Linus Torvalds1da177e2005-04-16 15:20:36 -07001401menu "Bus support"
1402
1403config ARM_AMBA
1404 bool
1405
1406config ISA
1407 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001408 help
1409 Find out whether you have ISA slots on your motherboard. ISA is the
1410 name of a bus system, i.e. the way the CPU talks to the other stuff
1411 inside your box. Other bus systems are PCI, EISA, MicroChannel
1412 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1413 newer boards don't support it. If you have ISA, say Y, otherwise N.
1414
Russell King065909b2006-01-04 15:44:16 +00001415# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001416config ISA_DMA
1417 bool
Russell King065909b2006-01-04 15:44:16 +00001418 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001419
Russell King065909b2006-01-04 15:44:16 +00001420# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001421config ISA_DMA_API
1422 bool
Al Viro5cae8412005-05-04 05:39:22 +01001423
Linus Torvalds1da177e2005-04-16 15:20:36 -07001424config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001425 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001426 help
1427 Find out whether you have a PCI motherboard. PCI is the name of a
1428 bus system, i.e. the way the CPU talks to the other stuff inside
1429 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1430 VESA. If you have PCI, say Y, otherwise N.
1431
Anton Vorontsov52882172010-04-19 13:20:49 +01001432config PCI_DOMAINS
1433 bool
1434 depends on PCI
1435
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001436config PCI_NANOENGINE
1437 bool "BSE nanoEngine PCI support"
1438 depends on SA1100_NANOENGINE
1439 help
1440 Enable PCI on the BSE nanoEngine board.
1441
Matthew Wilcox36e23592007-07-10 10:54:40 -06001442config PCI_SYSCALL
1443 def_bool PCI
1444
Mike Rapoporta0113a92007-11-25 08:55:34 +01001445config PCI_HOST_ITE8152
1446 bool
1447 depends on PCI && MACH_ARMCORE
1448 default y
1449 select DMABOUNCE
1450
Linus Torvalds1da177e2005-04-16 15:20:36 -07001451source "drivers/pci/Kconfig"
Jingoo Han3f06d152013-06-21 16:25:29 +09001452source "drivers/pci/pcie/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001453
1454source "drivers/pcmcia/Kconfig"
1455
1456endmenu
1457
1458menu "Kernel Features"
1459
Dave Martin3b556582011-12-07 15:38:04 +00001460config HAVE_SMP
1461 bool
1462 help
1463 This option should be selected by machines which have an SMP-
1464 capable CPU.
1465
1466 The only effect of this option is to make the SMP-related
1467 options available to the user for configuration.
1468
Linus Torvalds1da177e2005-04-16 15:20:36 -07001469config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001470 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001471 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001472 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001473 depends on HAVE_SMP
Jonathan Austin801bb212013-02-22 18:56:04 +00001474 depends on MMU || ARM_MPU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001475 help
1476 This enables support for systems with more than one CPU. If you have
Robert Graffham4a474152014-01-23 15:55:29 -08001477 a system with only one CPU, say N. If you have a system with more
1478 than one CPU, say Y.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001479
Robert Graffham4a474152014-01-23 15:55:29 -08001480 If you say N here, the kernel will run on uni- and multiprocessor
Linus Torvalds1da177e2005-04-16 15:20:36 -07001481 machines, but will use only one CPU of a multiprocessor machine. If
Robert Graffham4a474152014-01-23 15:55:29 -08001482 you say Y here, the kernel will run on many, but not all,
1483 uniprocessor machines. On a uniprocessor machine, the kernel
1484 will run faster if you say N here.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001485
Paul Bolle395cf962011-08-15 02:02:26 +02001486 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001487 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001488 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001489
1490 If you don't know what to do here, say N.
1491
Russell Kingf00ec482010-09-04 10:47:48 +01001492config SMP_ON_UP
1493 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
Jonathan Austin801bb212013-02-22 18:56:04 +00001494 depends on SMP && !XIP_KERNEL && MMU
Russell Kingf00ec482010-09-04 10:47:48 +01001495 default y
1496 help
1497 SMP kernels contain instructions which fail on non-SMP processors.
1498 Enabling this option allows the kernel to modify itself to make
1499 these instructions safe. Disabling it allows about 1K of space
1500 savings.
1501
1502 If you don't know what to do here, say Y.
1503
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001504config ARM_CPU_TOPOLOGY
1505 bool "Support cpu topology definition"
1506 depends on SMP && CPU_V7
1507 default y
1508 help
1509 Support ARM cpu topology definition. The MPIDR register defines
1510 affinity between processors which is then used to describe the cpu
1511 topology of an ARM System.
1512
1513config SCHED_MC
1514 bool "Multi-core scheduler support"
1515 depends on ARM_CPU_TOPOLOGY
1516 help
1517 Multi-core scheduler support improves the CPU scheduler's decision
1518 making when dealing with multi-core CPU chips at a cost of slightly
1519 increased overhead in some places. If unsure say N here.
1520
1521config SCHED_SMT
1522 bool "SMT scheduler support"
1523 depends on ARM_CPU_TOPOLOGY
1524 help
1525 Improves the CPU scheduler's decision making when dealing with
1526 MultiThreading at a cost of slightly increased overhead in some
1527 places. If unsure say N here.
1528
Russell Kinga8cbcd92009-05-16 11:51:14 +01001529config HAVE_ARM_SCU
1530 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001531 help
1532 This option enables support for the ARM system coherency unit
1533
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001534config HAVE_ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001535 bool "Architected timer support"
1536 depends on CPU_V7
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001537 select ARM_ARCH_TIMER
Will Deacon0c4034622013-11-19 15:46:17 +01001538 select GENERIC_CLOCKEVENTS
Marc Zyngier022c03a2012-01-11 17:25:17 +00001539 help
1540 This option enables support for the ARM architected timer
1541
Russell Kingf32f4ce2009-05-16 12:14:21 +01001542config HAVE_ARM_TWD
1543 bool
1544 depends on SMP
Rob Herringda4a6862013-02-06 21:17:47 -06001545 select CLKSRC_OF if OF
Russell Kingf32f4ce2009-05-16 12:14:21 +01001546 help
1547 This options enables support for the ARM timer and watchdog unit
1548
Nicolas Pitree8db2882012-04-12 02:45:22 -04001549config MCPM
1550 bool "Multi-Cluster Power Management"
1551 depends on CPU_V7 && SMP
1552 help
1553 This option provides the common power management infrastructure
1554 for (multi-)cluster based systems, such as big.LITTLE based
1555 systems.
1556
Nicolas Pitre1c33be52012-04-12 02:56:10 -04001557config BIG_LITTLE
1558 bool "big.LITTLE support (Experimental)"
1559 depends on CPU_V7 && SMP
1560 select MCPM
1561 help
1562 This option enables support selections for the big.LITTLE
1563 system architecture.
1564
1565config BL_SWITCHER
1566 bool "big.LITTLE switcher support"
1567 depends on BIG_LITTLE && MCPM && HOTPLUG_CPU
1568 select CPU_PM
1569 select ARM_CPU_SUSPEND
1570 help
1571 The big.LITTLE "switcher" provides the core functionality to
1572 transparently handle transition between a cluster of A15's
1573 and a cluster of A7's in a big.LITTLE system.
1574
Nicolas Pitreb22537c2012-04-12 03:04:28 -04001575config BL_SWITCHER_DUMMY_IF
1576 tristate "Simple big.LITTLE switcher user interface"
1577 depends on BL_SWITCHER && DEBUG_KERNEL
1578 help
1579 This is a simple and dummy char dev interface to control
1580 the big.LITTLE switcher core code. It is meant for
1581 debugging purposes only.
1582
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001583choice
1584 prompt "Memory split"
1585 default VMSPLIT_3G
1586 help
1587 Select the desired split between kernel and user memory.
1588
1589 If you are not absolutely sure what you are doing, leave this
1590 option alone!
1591
1592 config VMSPLIT_3G
1593 bool "3G/1G user/kernel split"
1594 config VMSPLIT_2G
1595 bool "2G/2G user/kernel split"
1596 config VMSPLIT_1G
1597 bool "1G/3G user/kernel split"
1598endchoice
1599
1600config PAGE_OFFSET
1601 hex
1602 default 0x40000000 if VMSPLIT_1G
1603 default 0x80000000 if VMSPLIT_2G
1604 default 0xC0000000
1605
Linus Torvalds1da177e2005-04-16 15:20:36 -07001606config NR_CPUS
1607 int "Maximum number of CPUs (2-32)"
1608 range 2 32
1609 depends on SMP
1610 default "4"
1611
Russell Kinga054a812005-11-02 22:24:33 +00001612config HOTPLUG_CPU
Russell King00b7ded2012-10-22 22:54:30 +01001613 bool "Support for hot-pluggable CPUs"
Stephen Rothwell40b31362013-05-21 13:49:35 +10001614 depends on SMP
Russell Kinga054a812005-11-02 22:24:33 +00001615 help
1616 Say Y here to experiment with turning CPUs off and on. CPUs
1617 can be controlled through /sys/devices/system/cpu.
1618
Will Deacon2bdd4242012-12-12 19:20:52 +00001619config ARM_PSCI
1620 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1621 depends on CPU_V7
1622 help
1623 Say Y here if you want Linux to communicate with system firmware
1624 implementing the PSCI specification for CPU-centric power
1625 management operations described in ARM document number ARM DEN
1626 0022A ("Power State Coordination Interface System Software on
1627 ARM processors").
1628
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001629# The GPIO number here must be sorted by descending number. In case of
1630# a multiplatform kernel, we just want the highest value required by the
1631# selected platforms.
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001632config ARCH_NR_GPIO
1633 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001634 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Linus Walleij41c35482013-12-06 12:46:27 +01001635 default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || SOC_DRA7XX || ARCH_S3C24XX || ARCH_S3C64XX
Olof Johansson06b851e2013-04-02 18:33:58 -07001636 default 392 if ARCH_U8500
Tony Prisk01bb9142013-03-09 18:22:30 +13001637 default 352 if ARCH_VT8500
1638 default 288 if ARCH_SUNXI
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001639 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001640 default 0
1641 help
1642 Maximum number of GPIOs in the system.
1643
1644 If unsure, leave the default value.
1645
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001646source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001647
Russell Kingc9218b12013-04-27 23:31:10 +01001648config HZ_FIXED
Russell Kingf8065812006-03-02 22:41:59 +00001649 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001650 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001651 ARCH_S5PV210 || ARCH_EXYNOS4
David Brownell5248c652007-11-12 17:59:10 +01001652 default AT91_TIMER_HZ if ARCH_AT91
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +01001653 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE_LEGACY
Russell King47d84682013-09-10 23:47:55 +01001654 default 0
Russell Kingc9218b12013-04-27 23:31:10 +01001655
1656choice
Russell King47d84682013-09-10 23:47:55 +01001657 depends on HZ_FIXED = 0
Russell Kingc9218b12013-04-27 23:31:10 +01001658 prompt "Timer frequency"
1659
1660config HZ_100
1661 bool "100 Hz"
1662
1663config HZ_200
1664 bool "200 Hz"
1665
1666config HZ_250
1667 bool "250 Hz"
1668
1669config HZ_300
1670 bool "300 Hz"
1671
1672config HZ_500
1673 bool "500 Hz"
1674
1675config HZ_1000
1676 bool "1000 Hz"
1677
1678endchoice
1679
1680config HZ
1681 int
Russell King47d84682013-09-10 23:47:55 +01001682 default HZ_FIXED if HZ_FIXED != 0
Russell Kingc9218b12013-04-27 23:31:10 +01001683 default 100 if HZ_100
1684 default 200 if HZ_200
1685 default 250 if HZ_250
1686 default 300 if HZ_300
1687 default 500 if HZ_500
1688 default 1000
1689
1690config SCHED_HRTICK
1691 def_bool HIGH_RES_TIMERS
Russell Kingf8065812006-03-02 22:41:59 +00001692
Catalin Marinas16c79652009-07-24 12:33:02 +01001693config THUMB2_KERNEL
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001694 bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
Uwe Kleine-König4477ca42013-03-21 21:02:37 +01001695 depends on (CPU_V7 || CPU_V7M) && !CPU_V6 && !CPU_V6K
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001696 default y if CPU_THUMBONLY
Catalin Marinas16c79652009-07-24 12:33:02 +01001697 select AEABI
1698 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001699 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001700 help
1701 By enabling this option, the kernel will be compiled in
1702 Thumb-2 mode. A compiler/assembler that understand the unified
1703 ARM-Thumb syntax is needed.
1704
1705 If unsure, say N.
1706
Dave Martin6f685c52011-03-03 11:41:12 +01001707config THUMB2_AVOID_R_ARM_THM_JUMP11
1708 bool "Work around buggy Thumb-2 short branch relocations in gas"
1709 depends on THUMB2_KERNEL && MODULES
1710 default y
1711 help
1712 Various binutils versions can resolve Thumb-2 branches to
1713 locally-defined, preemptible global symbols as short-range "b.n"
1714 branch instructions.
1715
1716 This is a problem, because there's no guarantee the final
1717 destination of the symbol, or any candidate locations for a
1718 trampoline, are within range of the branch. For this reason, the
1719 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1720 relocation in modules at all, and it makes little sense to add
1721 support.
1722
1723 The symptom is that the kernel fails with an "unsupported
1724 relocation" error when loading some modules.
1725
1726 Until fixed tools are available, passing
1727 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1728 code which hits this problem, at the cost of a bit of extra runtime
1729 stack usage in some cases.
1730
1731 The problem is described in more detail at:
1732 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1733
1734 Only Thumb-2 kernels are affected.
1735
1736 Unless you are sure your tools don't have this problem, say Y.
1737
Catalin Marinas0becb082009-07-24 12:32:53 +01001738config ARM_ASM_UNIFIED
1739 bool
1740
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001741config AEABI
1742 bool "Use the ARM EABI to compile the kernel"
1743 help
1744 This option allows for the kernel to be compiled using the latest
1745 ARM ABI (aka EABI). This is only useful if you are using a user
1746 space environment that is also compiled with EABI.
1747
1748 Since there are major incompatibilities between the legacy ABI and
1749 EABI, especially with regard to structure member alignment, this
1750 option also changes the kernel syscall calling convention to
1751 disambiguate both ABIs and allow for backward compatibility support
1752 (selected with CONFIG_OABI_COMPAT).
1753
1754 To use this you need GCC version 4.0.0 or later.
1755
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001756config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001757 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001758 depends on AEABI && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001759 help
1760 This option preserves the old syscall interface along with the
1761 new (ARM EABI) one. It also provides a compatibility layer to
1762 intercept syscalls that have structure arguments which layout
1763 in memory differs between the legacy ABI and the new ARM EABI
1764 (only for non "thumb" binaries). This option adds a tiny
1765 overhead to all syscalls and produces a slightly larger kernel.
Kees Cook91702172013-11-09 00:51:56 +01001766
1767 The seccomp filter system will not be available when this is
1768 selected, since there is no way yet to sensibly distinguish
1769 between calling conventions during filtering.
1770
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001771 If you know you'll be using only pure EABI user space then you
1772 can say N here. If this option is not selected and you attempt
1773 to execute a legacy ABI binary then the result will be
1774 UNPREDICTABLE (in fact it can be predicted that it won't work
Kees Cookb02f8462013-11-09 00:31:11 +01001775 at all). If in doubt say N.
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001776
Mel Gormaneb335752009-05-13 17:34:48 +01001777config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001778 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001779
Russell King05944d72006-11-30 20:43:51 +00001780config ARCH_SPARSEMEM_ENABLE
1781 bool
1782
Russell King07a2f732008-10-01 21:39:58 +01001783config ARCH_SPARSEMEM_DEFAULT
1784 def_bool ARCH_SPARSEMEM_ENABLE
1785
Russell King05944d72006-11-30 20:43:51 +00001786config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001787 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001788
Will Deacon7b7bf492011-05-19 13:21:14 +01001789config HAVE_ARCH_PFN_VALID
1790 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1791
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001792config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001793 bool "High Memory Support"
1794 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001795 help
1796 The address space of ARM processors is only 4 Gigabytes large
1797 and it has to accommodate user address space, kernel address
1798 space as well as some memory mapped IO. That means that, if you
1799 have a large amount of physical memory and/or IO, not all of the
1800 memory can be "permanently mapped" by the kernel. The physical
1801 memory that is not permanently mapped is called "high memory".
1802
1803 Depending on the selected kernel/user memory split, minimum
1804 vmalloc space and actual amount of RAM, you may not need this
1805 option which should result in a slightly faster kernel.
1806
1807 If unsure, say n.
1808
Russell King65cec8e2009-08-17 20:02:06 +01001809config HIGHPTE
1810 bool "Allocate 2nd-level pagetables from highmem"
1811 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001812
Jamie Iles1b8873a2010-02-02 20:25:44 +01001813config HW_PERF_EVENTS
1814 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001815 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001816 default y
1817 help
1818 Enable hardware performance counter support for perf events. If
1819 disabled, perf events will use software events only.
1820
Catalin Marinas1355e2a2012-07-25 14:32:38 +01001821config SYS_SUPPORTS_HUGETLBFS
1822 def_bool y
1823 depends on ARM_LPAE
1824
Catalin Marinas8d962502012-07-25 14:39:26 +01001825config HAVE_ARCH_TRANSPARENT_HUGEPAGE
1826 def_bool y
1827 depends on ARM_LPAE
1828
Steven Capper4bfab202013-07-26 14:58:22 +01001829config ARCH_WANT_GENERAL_HUGETLB
1830 def_bool y
1831
Dave Hansen3f22ab22005-06-23 00:07:43 -07001832source "mm/Kconfig"
1833
Magnus Dammc1b2d972010-07-05 10:00:11 +01001834config FORCE_MAX_ZONEORDER
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +01001835 int "Maximum zone order" if ARCH_SHMOBILE_LEGACY
1836 range 11 64 if ARCH_SHMOBILE_LEGACY
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001837 default "12" if SOC_AM33XX
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +01001838 default "9" if SA1111 || ARCH_EFM32
Magnus Dammc1b2d972010-07-05 10:00:11 +01001839 default "11"
1840 help
1841 The kernel memory allocator divides physically contiguous memory
1842 blocks into "zones", where each zone is a power of two number of
1843 pages. This option selects the largest power of two that the kernel
1844 keeps in the memory allocator. If you need to allocate very large
1845 blocks of physically contiguous memory, then you may need to
1846 increase this value.
1847
1848 This config option is actually maximum order plus one. For example,
1849 a value of 11 means that the largest free memory block is 2^10 pages.
1850
Linus Torvalds1da177e2005-04-16 15:20:36 -07001851config ALIGNMENT_TRAP
1852 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001853 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001854 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001855 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001856 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001857 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001858 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1859 address divisible by 4. On 32-bit ARM processors, these non-aligned
1860 fetch/store instructions will be emulated in software if you say
1861 here, which has a severe performance impact. This is necessary for
1862 correct operation of some network protocols. With an IP-only
1863 configuration it is safe to say N, otherwise say Y.
1864
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001865config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001866 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1867 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001868 default y if CPU_FEROCEON
1869 help
1870 Implement faster copy_to_user and clear_user methods for CPU
1871 cores where a 8-word STM instruction give significantly higher
1872 memory write throughput than a sequence of individual 32bit stores.
1873
1874 A possible side effect is a slight increase in scheduling latency
1875 between threads sharing the same address space if they invoke
1876 such copy operations with large buffers.
1877
1878 However, if the CPU data cache is using a write-allocate mode,
1879 this option is unlikely to provide any performance gain.
1880
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001881config SECCOMP
1882 bool
1883 prompt "Enable seccomp to safely compute untrusted bytecode"
1884 ---help---
1885 This kernel feature is useful for number crunching applications
1886 that may need to compute untrusted bytecode during their
1887 execution. By using pipes or other transports made available to
1888 the process as file descriptors supporting the read/write
1889 syscalls, it's possible to isolate those applications in
1890 their own address space using seccomp. Once seccomp is
1891 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1892 and the task is only allowed to execute a few safe syscalls
1893 defined by each seccomp mode.
1894
Stefano Stabellini06e62952013-10-15 15:47:14 +00001895config SWIOTLB
1896 def_bool y
1897
1898config IOMMU_HELPER
1899 def_bool SWIOTLB
1900
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001901config XEN_DOM0
1902 def_bool y
1903 depends on XEN
1904
1905config XEN
1906 bool "Xen guest support on ARM (EXPERIMENTAL)"
Ian Campbell85323a92013-03-07 07:17:25 +00001907 depends on ARM && AEABI && OF
Arnd Bergmannf880b672012-10-09 10:33:52 +00001908 depends on CPU_V7 && !CPU_V6
Ian Campbell85323a92013-03-07 07:17:25 +00001909 depends on !GENERIC_ATOMIC64
Stefano Stabellini17b7ab82013-04-24 18:47:18 +00001910 select ARM_PSCI
Stefano Stabellini83862cc2013-10-10 13:40:44 +00001911 select SWIOTLB_XEN
Ian Campbelle17b2f12014-01-20 11:30:41 +00001912 select ARCH_DMA_ADDR_T_64BIT
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001913 help
1914 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1915
Linus Torvalds1da177e2005-04-16 15:20:36 -07001916endmenu
1917
1918menu "Boot options"
1919
Grant Likely9eb8f672011-04-28 14:27:20 -06001920config USE_OF
1921 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001922 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001923 select OF
1924 select OF_EARLY_FLATTREE
1925 help
1926 Include support for flattened device tree machine descriptions.
1927
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001928config ATAGS
1929 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1930 default y
1931 help
1932 This is the traditional way of passing data to the kernel at boot
1933 time. If you are solely relying on the flattened device tree (or
1934 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1935 to remove ATAGS support from your kernel binary. If unsure,
1936 leave this to y.
1937
1938config DEPRECATED_PARAM_STRUCT
1939 bool "Provide old way to pass kernel parameters"
1940 depends on ATAGS
1941 help
1942 This was deprecated in 2001 and announced to live on for 5 years.
1943 Some old boot loaders still use this way.
1944
Linus Torvalds1da177e2005-04-16 15:20:36 -07001945# Compressed boot loader in ROM. Yes, we really want to ask about
1946# TEXT and BSS so we preserve their values in the config files.
1947config ZBOOT_ROM_TEXT
1948 hex "Compressed ROM boot loader base address"
1949 default "0"
1950 help
1951 The physical address at which the ROM-able zImage is to be
1952 placed in the target. Platforms which normally make use of
1953 ROM-able zImage formats normally set this to a suitable
1954 value in their defconfig file.
1955
1956 If ZBOOT_ROM is not enabled, this has no effect.
1957
1958config ZBOOT_ROM_BSS
1959 hex "Compressed ROM boot loader BSS address"
1960 default "0"
1961 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001962 The base address of an area of read/write memory in the target
1963 for the ROM-able zImage which must be available while the
1964 decompressor is running. It must be large enough to hold the
1965 entire decompressed kernel plus an additional 128 KiB.
1966 Platforms which normally make use of ROM-able zImage formats
1967 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001968
1969 If ZBOOT_ROM is not enabled, this has no effect.
1970
1971config ZBOOT_ROM
1972 bool "Compressed boot loader in ROM/flash"
1973 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
Russell King10968132014-01-01 11:59:44 +00001974 depends on !ARM_APPENDED_DTB && !XIP_KERNEL && !AUTO_ZRELADDR
Linus Torvalds1da177e2005-04-16 15:20:36 -07001975 help
1976 Say Y here if you intend to execute your compressed kernel image
1977 (zImage) directly from ROM or flash. If unsure, say N.
1978
Simon Horman090ab3f2011-04-26 06:29:53 +01001979choice
1980 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001981 depends on ZBOOT_ROM && ARCH_SH7372
Simon Horman090ab3f2011-04-26 06:29:53 +01001982 default ZBOOT_ROM_NONE
1983 help
1984 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001985 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001986 kernel image to an MMC or SD card and boot the kernel straight
1987 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001988 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001989 rest the kernel image to RAM.
1990
1991config ZBOOT_ROM_NONE
1992 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1993 help
1994 Do not load image from SD or MMC
1995
Simon Hormanf45b1142011-01-11 04:01:08 +01001996config ZBOOT_ROM_MMCIF
1997 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001998 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001999 Load image from MMCIF hardware block.
2000
2001config ZBOOT_ROM_SH_MOBILE_SDHI
2002 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
2003 help
2004 Load image from SDHI hardware block
2005
2006endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01002007
John Bonesioe2a6a3a2011-05-27 18:45:50 -04002008config ARM_APPENDED_DTB
2009 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
Russell King10968132014-01-01 11:59:44 +00002010 depends on OF
John Bonesioe2a6a3a2011-05-27 18:45:50 -04002011 help
2012 With this option, the boot code will look for a device tree binary
2013 (DTB) appended to zImage
2014 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
2015
2016 This is meant as a backward compatibility convenience for those
2017 systems with a bootloader that can't be upgraded to accommodate
2018 the documented boot protocol using a device tree.
2019
2020 Beware that there is very little in terms of protection against
2021 this option being confused by leftover garbage in memory that might
2022 look like a DTB header after a reboot if no actual DTB is appended
2023 to zImage. Do not leave this option active in a production kernel
2024 if you don't intend to always append a DTB. Proper passing of the
2025 location into r2 of a bootloader provided DTB is always preferable
2026 to this option.
2027
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04002028config ARM_ATAG_DTB_COMPAT
2029 bool "Supplement the appended DTB with traditional ATAG information"
2030 depends on ARM_APPENDED_DTB
2031 help
2032 Some old bootloaders can't be updated to a DTB capable one, yet
2033 they provide ATAGs with memory configuration, the ramdisk address,
2034 the kernel cmdline string, etc. Such information is dynamically
2035 provided by the bootloader and can't always be stored in a static
2036 DTB. To allow a device tree enabled kernel to be used with such
2037 bootloaders, this option allows zImage to extract the information
2038 from the ATAG list and store it at run time into the appended DTB.
2039
Genoud Richardd0f34a112012-06-26 16:37:59 +01002040choice
2041 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
2042 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
2043
2044config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
2045 bool "Use bootloader kernel arguments if available"
2046 help
2047 Uses the command-line options passed by the boot loader instead of
2048 the device tree bootargs property. If the boot loader doesn't provide
2049 any, the device tree bootargs property will be used.
2050
2051config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
2052 bool "Extend with bootloader kernel arguments"
2053 help
2054 The command-line arguments provided by the boot loader will be
2055 appended to the the device tree bootargs property.
2056
2057endchoice
2058
Linus Torvalds1da177e2005-04-16 15:20:36 -07002059config CMDLINE
2060 string "Default kernel command string"
2061 default ""
2062 help
2063 On some architectures (EBSA110 and CATS), there is currently no way
2064 for the boot loader to pass arguments to the kernel. For these
2065 architectures, you should supply some command-line options at build
2066 time by entering them here. As a minimum, you should specify the
2067 memory size and the root device (e.g., mem=64M root=/dev/nfs).
2068
Victor Boivie4394c122011-05-04 17:07:55 +01002069choice
2070 prompt "Kernel command line type" if CMDLINE != ""
2071 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002072 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01002073
2074config CMDLINE_FROM_BOOTLOADER
2075 bool "Use bootloader kernel arguments if available"
2076 help
2077 Uses the command-line options passed by the boot loader. If
2078 the boot loader doesn't provide any, the default kernel command
2079 string provided in CMDLINE will be used.
2080
2081config CMDLINE_EXTEND
2082 bool "Extend bootloader kernel arguments"
2083 help
2084 The command-line arguments provided by the boot loader will be
2085 appended to the default kernel command string.
2086
Alexander Holler92d20402010-02-16 19:04:53 +01002087config CMDLINE_FORCE
2088 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01002089 help
2090 Always use the default kernel command string, even if the boot
2091 loader passes other arguments to the kernel.
2092 This is useful if you cannot or don't want to change the
2093 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01002094endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002095
Linus Torvalds1da177e2005-04-16 15:20:36 -07002096config XIP_KERNEL
2097 bool "Kernel Execute-In-Place from ROM"
Russell King10968132014-01-01 11:59:44 +00002098 depends on !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07002099 help
2100 Execute-In-Place allows the kernel to run from non-volatile storage
2101 directly addressable by the CPU, such as NOR flash. This saves RAM
2102 space since the text section of the kernel is not loaded from flash
2103 to RAM. Read-write sections, such as the data section and stack,
2104 are still copied to RAM. The XIP kernel is not compressed since
2105 it has to run directly from flash, so it will take more space to
2106 store it. The flash address used to link the kernel object files,
2107 and for storing it, is configuration dependent. Therefore, if you
2108 say Y here, you must know the proper physical address where to
2109 store the kernel image depending on your own flash memory usage.
2110
2111 Also note that the make target becomes "make xipImage" rather than
2112 "make zImage" or "make Image". The final kernel binary to put in
2113 ROM memory will be arch/arm/boot/xipImage.
2114
2115 If unsure, say N.
2116
2117config XIP_PHYS_ADDR
2118 hex "XIP Kernel Physical Location"
2119 depends on XIP_KERNEL
2120 default "0x00080000"
2121 help
2122 This is the physical address in your flash memory the kernel will
2123 be linked for and stored to. This address is dependent on your
2124 own flash usage.
2125
Richard Purdiec587e4a2007-02-06 21:29:00 +01002126config KEXEC
2127 bool "Kexec system call (EXPERIMENTAL)"
Stephen Warren19ab4282013-06-14 16:14:14 +01002128 depends on (!SMP || PM_SLEEP_SMP)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002129 help
2130 kexec is a system call that implements the ability to shutdown your
2131 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002132 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002133 you can start any kernel with it, not just Linux.
2134
2135 It is an ongoing process to be certain the hardware in a machine
2136 is properly shutdown, so do not be surprised if this code does not
Geert Uytterhoevenbf220692013-08-20 21:38:03 +02002137 initially work for you.
Richard Purdiec587e4a2007-02-06 21:29:00 +01002138
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002139config ATAGS_PROC
2140 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002141 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01002142 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002143 help
2144 Should the atags used to boot the kernel be exported in an "atags"
2145 file in procfs. Useful with kexec.
2146
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002147config CRASH_DUMP
2148 bool "Build kdump crash kernel (EXPERIMENTAL)"
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002149 help
2150 Generate crash dump after being started by kexec. This should
2151 be normally only set in special crash dump kernels which are
2152 loaded in the main kernel with kexec-tools into a specially
2153 reserved region and then later executed after a crash by
2154 kdump/kexec. The crash dump kernel must be compiled to a
2155 memory address not used by the main kernel
2156
2157 For more details see Documentation/kdump/kdump.txt
2158
Eric Miaoe69edc792010-07-05 15:56:50 +02002159config AUTO_ZRELADDR
2160 bool "Auto calculation of the decompressed kernel image address"
Eric Miaoe69edc792010-07-05 15:56:50 +02002161 help
2162 ZRELADDR is the physical address where the decompressed kernel
2163 image will be placed. If AUTO_ZRELADDR is selected, the address
2164 will be determined at run-time by masking the current IP with
2165 0xf8000000. This assumes the zImage being placed in the first 128MB
2166 from start of memory.
2167
Linus Torvalds1da177e2005-04-16 15:20:36 -07002168endmenu
2169
Russell Kingac9d7ef2008-08-18 17:26:00 +01002170menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002171
Ben Dooks89c52ed2009-07-30 23:23:24 +01002172if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002173source "drivers/cpufreq/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002174endif
2175
Russell Kingac9d7ef2008-08-18 17:26:00 +01002176source "drivers/cpuidle/Kconfig"
2177
2178endmenu
2179
Linus Torvalds1da177e2005-04-16 15:20:36 -07002180menu "Floating point emulation"
2181
2182comment "At least one emulation must be selected"
2183
2184config FPE_NWFPE
2185 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002186 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002187 ---help---
2188 Say Y to include the NWFPE floating point emulator in the kernel.
2189 This is necessary to run most binaries. Linux does not currently
2190 support floating point hardware so you need to say Y here even if
2191 your machine has an FPA or floating point co-processor podule.
2192
2193 You may say N here if you are going to load the Acorn FPEmulator
2194 early in the bootup.
2195
2196config FPE_NWFPE_XP
2197 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002198 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002199 help
2200 Say Y to include 80-bit support in the kernel floating-point
2201 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2202 Note that gcc does not generate 80-bit operations by default,
2203 so in most cases this option only enlarges the size of the
2204 floating point emulator without any good reason.
2205
2206 You almost surely want to say N here.
2207
2208config FPE_FASTFPE
2209 bool "FastFPE math emulation (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002210 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
Linus Torvalds1da177e2005-04-16 15:20:36 -07002211 ---help---
2212 Say Y here to include the FAST floating point emulator in the kernel.
2213 This is an experimental much faster emulator which now also has full
2214 precision for the mantissa. It does not support any exceptions.
2215 It is very simple, and approximately 3-6 times faster than NWFPE.
2216
2217 It should be sufficient for most programs. It may be not suitable
2218 for scientific calculations, but you have to check this for yourself.
2219 If you do not feel you need a faster FP emulation you should better
2220 choose NWFPE.
2221
2222config VFP
2223 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002224 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002225 help
2226 Say Y to include VFP support code in the kernel. This is needed
2227 if your hardware includes a VFP unit.
2228
2229 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2230 release notes and additional status information.
2231
2232 Say N if your target does not have VFP hardware.
2233
Catalin Marinas25ebee02007-09-25 15:22:24 +01002234config VFPv3
2235 bool
2236 depends on VFP
2237 default y if CPU_V7
2238
Catalin Marinasb5872db2008-01-10 19:16:17 +01002239config NEON
2240 bool "Advanced SIMD (NEON) Extension support"
2241 depends on VFPv3 && CPU_V7
2242 help
2243 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2244 Extension.
2245
Ard Biesheuvel73c132c2013-05-16 11:41:48 +02002246config KERNEL_MODE_NEON
2247 bool "Support for NEON in kernel mode"
Russell Kingc4a30c32013-09-22 11:08:50 +01002248 depends on NEON && AEABI
Ard Biesheuvel73c132c2013-05-16 11:41:48 +02002249 help
2250 Say Y to include support for NEON in kernel mode.
2251
Linus Torvalds1da177e2005-04-16 15:20:36 -07002252endmenu
2253
2254menu "Userspace binary formats"
2255
2256source "fs/Kconfig.binfmt"
2257
2258config ARTHUR
2259 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002260 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002261 help
2262 Say Y here to include the kernel code necessary if you want to run
2263 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2264 experimental; if this sounds frightening, say N and sleep in peace.
2265 You can also say M here to compile this support as a module (which
2266 will be called arthur).
2267
2268endmenu
2269
2270menu "Power management options"
2271
Russell Kingeceab4a2005-11-15 11:31:41 +00002272source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002273
Johannes Bergf4cb5702007-12-08 02:14:00 +01002274config ARCH_SUSPEND_POSSIBLE
Stephen Warren4b1082c2012-09-05 09:58:27 -06002275 depends on !ARCH_S5PC100
Ezequiel Garcia19a05192013-08-16 10:28:24 +01002276 depends on CPU_ARM920T || CPU_ARM926T || CPU_FEROCEON || CPU_SA1100 || \
Chao Xie3f5d0812012-05-07 11:23:58 +08002277 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002278 def_bool y
2279
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002280config ARM_CPU_SUSPEND
2281 def_bool PM_SLEEP
2282
Linus Torvalds1da177e2005-04-16 15:20:36 -07002283endmenu
2284
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002285source "net/Kconfig"
2286
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002287source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002288
2289source "fs/Kconfig"
2290
Linus Torvalds1da177e2005-04-16 15:20:36 -07002291source "arch/arm/Kconfig.debug"
2292
2293source "security/Kconfig"
2294
2295source "crypto/Kconfig"
2296
2297source "lib/Kconfig"
Christoffer Dall749cf76c2013-01-20 18:28:06 -05002298
2299source "arch/arm/kvm/Kconfig"