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ARM: qcom: Prep scm code for move to drivers/firmware
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1da177e4
LT
1config ARM
2 bool
3 default y
b1b3f49c
RK
4 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
5 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
3d06770e 6 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
171b3f0d 7 select ARCH_HAVE_CUSTOM_GPIO_H
957e3fac 8 select ARCH_HAS_GCOV_PROFILE_ALL
d7018848 9 select ARCH_MIGHT_HAVE_PC_PARPORT
4badad35 10 select ARCH_SUPPORTS_ATOMIC_RMW
017f161a 11 select ARCH_USE_BUILTIN_BSWAP
0cbad9c9 12 select ARCH_USE_CMPXCHG_LOCKREF
b1b3f49c 13 select ARCH_WANT_IPC_PARSE_VERSION
ee951c63 14 select BUILDTIME_EXTABLE_SORT if MMU
171b3f0d 15 select CLONE_BACKWARDS
b1b3f49c 16 select CPU_PM if (SUSPEND || CPU_IDLE)
dce5c9e3 17 select DCACHE_WORD_ACCESS if HAVE_EFFICIENT_UNALIGNED_ACCESS
36d0fd21 18 select GENERIC_ALLOCATOR
4477ca45 19 select GENERIC_ATOMIC64 if (CPU_V7M || CPU_V6 || !CPU_32v6K || !AEABI)
b1b3f49c 20 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
171b3f0d 21 select GENERIC_IDLE_POLL_SETUP
b1b3f49c
RK
22 select GENERIC_IRQ_PROBE
23 select GENERIC_IRQ_SHOW
b1b3f49c 24 select GENERIC_PCI_IOMAP
38ff87f7 25 select GENERIC_SCHED_CLOCK
b1b3f49c
RK
26 select GENERIC_SMP_IDLE_THREAD
27 select GENERIC_STRNCPY_FROM_USER
28 select GENERIC_STRNLEN_USER
a71b092a 29 select HANDLE_DOMAIN_IRQ
b1b3f49c 30 select HARDIRQS_SW_RESEND
7a017721 31 select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
0b7857db 32 select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6
09f05d85 33 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
5cbad0eb 34 select HAVE_ARCH_KGDB
91702175 35 select HAVE_ARCH_SECCOMP_FILTER if (AEABI && !OABI_COMPAT)
0693bf68 36 select HAVE_ARCH_TRACEHOOK
b1b3f49c 37 select HAVE_BPF_JIT
51aaf81f 38 select HAVE_CC_STACKPROTECTOR
171b3f0d 39 select HAVE_CONTEXT_TRACKING
b1b3f49c
RK
40 select HAVE_C_RECORDMCOUNT
41 select HAVE_DEBUG_KMEMLEAK
42 select HAVE_DMA_API_DEBUG
43 select HAVE_DMA_ATTRS
44 select HAVE_DMA_CONTIGUOUS if MMU
80be7a7f 45 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
dce5c9e3 46 select HAVE_EFFICIENT_UNALIGNED_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && MMU
b1b3f49c 47 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
0e341af8 48 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
b1b3f49c 49 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
1fe53268 50 select HAVE_GENERIC_DMA_COHERENT
b1b3f49c
RK
51 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
52 select HAVE_IDE if PCI || ISA || PCMCIA
87c46b6c 53 select HAVE_IRQ_TIME_ACCOUNTING
e7db7b42 54 select HAVE_KERNEL_GZIP
f9b493ac 55 select HAVE_KERNEL_LZ4
6e8699f7 56 select HAVE_KERNEL_LZMA
b1b3f49c 57 select HAVE_KERNEL_LZO
a7f464f3 58 select HAVE_KERNEL_XZ
b1b3f49c
RK
59 select HAVE_KPROBES if !XIP_KERNEL
60 select HAVE_KRETPROBES if (HAVE_KPROBES)
61 select HAVE_MEMBLOCK
171b3f0d 62 select HAVE_MOD_ARCH_SPECIFIC if ARM_UNWIND
b1b3f49c 63 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
0dc016db 64 select HAVE_OPTPROBES if !THUMB2_KERNEL
7ada189f 65 select HAVE_PERF_EVENTS
49863894
WD
66 select HAVE_PERF_REGS
67 select HAVE_PERF_USER_STACK_DUMP
a0ad5496 68 select HAVE_RCU_TABLE_FREE if (SMP && ARM_LPAE)
e513f8bf 69 select HAVE_REGS_AND_STACK_ACCESS_API
b1b3f49c 70 select HAVE_SYSCALL_TRACEPOINTS
af1839eb 71 select HAVE_UID16
31c1fc81 72 select HAVE_VIRT_CPU_ACCOUNTING_GEN
da0ec6f7 73 select IRQ_FORCED_THREADING
171b3f0d 74 select MODULES_USE_ELF_REL
84f452b1 75 select NO_BOOTMEM
171b3f0d
RK
76 select OLD_SIGACTION
77 select OLD_SIGSUSPEND3
b1b3f49c
RK
78 select PERF_USE_VMALLOC
79 select RTC_LIB
80 select SYS_SUPPORTS_APM_EMULATION
171b3f0d
RK
81 # Above selects are sorted alphabetically; please add new ones
82 # according to that. Thanks.
1da177e4
LT
83 help
84 The ARM series is a line of low-power-consumption RISC chip designs
f6c8965a 85 licensed by ARM Ltd and targeted at embedded applications and
1da177e4 86 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
f6c8965a 87 manufactured, but legacy ARM-based PC hardware remains popular in
1da177e4
LT
88 Europe. There is an ARM Linux project with a web page at
89 <http://www.arm.linux.org.uk/>.
90
74facffe 91config ARM_HAS_SG_CHAIN
308c09f1 92 select ARCH_HAS_SG_CHAIN
74facffe
RK
93 bool
94
4ce63fcd
MS
95config NEED_SG_DMA_LENGTH
96 bool
97
98config ARM_DMA_USE_IOMMU
4ce63fcd 99 bool
b1b3f49c
RK
100 select ARM_HAS_SG_CHAIN
101 select NEED_SG_DMA_LENGTH
4ce63fcd 102
60460abf
SWK
103if ARM_DMA_USE_IOMMU
104
105config ARM_DMA_IOMMU_ALIGNMENT
106 int "Maximum PAGE_SIZE order of alignment for DMA IOMMU buffers"
107 range 4 9
108 default 8
109 help
110 DMA mapping framework by default aligns all buffers to the smallest
111 PAGE_SIZE order which is greater than or equal to the requested buffer
112 size. This works well for buffers up to a few hundreds kilobytes, but
113 for larger buffers it just a waste of address space. Drivers which has
114 relatively small addressing window (like 64Mib) might run out of
115 virtual space with just a few allocations.
116
117 With this parameter you can specify the maximum PAGE_SIZE order for
118 DMA IOMMU buffers. Larger buffers will be aligned only to this
119 specified order. The order is expressed as a power of two multiplied
120 by the PAGE_SIZE.
121
122endif
123
0b05da72
HUK
124config MIGHT_HAVE_PCI
125 bool
126
75e7153a
RB
127config SYS_SUPPORTS_APM_EMULATION
128 bool
129
bc581770
LW
130config HAVE_TCM
131 bool
132 select GENERIC_ALLOCATOR
133
e119bfff
RK
134config HAVE_PROC_CPU
135 bool
136
ce816fa8 137config NO_IOPORT_MAP
5ea81769 138 bool
5ea81769 139
1da177e4
LT
140config EISA
141 bool
142 ---help---
143 The Extended Industry Standard Architecture (EISA) bus was
144 developed as an open alternative to the IBM MicroChannel bus.
145
146 The EISA bus provided some of the features of the IBM MicroChannel
147 bus while maintaining backward compatibility with cards made for
148 the older ISA bus. The EISA bus saw limited use between 1988 and
149 1995 when it was made obsolete by the PCI bus.
150
151 Say Y here if you are building a kernel for an EISA-based machine.
152
153 Otherwise, say N.
154
155config SBUS
156 bool
157
f16fb1ec
RK
158config STACKTRACE_SUPPORT
159 bool
160 default y
161
f76e9154
NP
162config HAVE_LATENCYTOP_SUPPORT
163 bool
164 depends on !SMP
165 default y
166
f16fb1ec
RK
167config LOCKDEP_SUPPORT
168 bool
169 default y
170
7ad1bcb2
RK
171config TRACE_IRQFLAGS_SUPPORT
172 bool
173 default y
174
1da177e4
LT
175config RWSEM_XCHGADD_ALGORITHM
176 bool
8a87411b 177 default y
1da177e4 178
f0d1b0b3
DH
179config ARCH_HAS_ILOG2_U32
180 bool
f0d1b0b3
DH
181
182config ARCH_HAS_ILOG2_U64
183 bool
f0d1b0b3 184
4a1b5733
EV
185config ARCH_HAS_BANDGAP
186 bool
187
b89c3b16
AM
188config GENERIC_HWEIGHT
189 bool
190 default y
191
1da177e4
LT
192config GENERIC_CALIBRATE_DELAY
193 bool
194 default y
195
a08b6b79
AV
196config ARCH_MAY_HAVE_PC_FDC
197 bool
198
5ac6da66
CL
199config ZONE_DMA
200 bool
5ac6da66 201
ccd7ab7f
FT
202config NEED_DMA_MAP_STATE
203 def_bool y
204
c7edc9e3
DL
205config ARCH_SUPPORTS_UPROBES
206 def_bool y
207
58af4a24
RH
208config ARCH_HAS_DMA_SET_COHERENT_MASK
209 bool
210
1da177e4
LT
211config GENERIC_ISA_DMA
212 bool
213
1da177e4
LT
214config FIQ
215 bool
216
13a5045d
RH
217config NEED_RET_TO_USER
218 bool
219
034d2f5a
AV
220config ARCH_MTD_XIP
221 bool
222
c760fc19
HC
223config VECTORS_BASE
224 hex
6afd6fae 225 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
c760fc19
HC
226 default DRAM_BASE if REMAP_VECTORS_TO_RAM
227 default 0x00000000
228 help
19accfd3
RK
229 The base address of exception vectors. This must be two pages
230 in size.
c760fc19 231
dc21af99 232config ARM_PATCH_PHYS_VIRT
c1becedc
RK
233 bool "Patch physical to virtual translations at runtime" if EMBEDDED
234 default y
b511d75d 235 depends on !XIP_KERNEL && MMU
dc21af99
RK
236 depends on !ARCH_REALVIEW || !SPARSEMEM
237 help
111e9a5c
RK
238 Patch phys-to-virt and virt-to-phys translation functions at
239 boot and module load time according to the position of the
240 kernel in system memory.
dc21af99 241
111e9a5c 242 This can only be used with non-XIP MMU kernels where the base
daece596 243 of physical memory is at a 16MB boundary.
dc21af99 244
c1becedc
RK
245 Only disable this option if you know that you do not require
246 this feature (eg, building a kernel for a single machine) and
247 you need to shrink the kernel to the minimal size.
dc21af99 248
c334bc15
RH
249config NEED_MACH_IO_H
250 bool
251 help
252 Select this when mach/io.h is required to provide special
253 definitions for this platform. The need for mach/io.h should
254 be avoided when possible.
255
0cdc8b92 256config NEED_MACH_MEMORY_H
1b9f95f8
NP
257 bool
258 help
0cdc8b92
NP
259 Select this when mach/memory.h is required to provide special
260 definitions for this platform. The need for mach/memory.h should
261 be avoided when possible.
dc21af99 262
1b9f95f8 263config PHYS_OFFSET
974c0724 264 hex "Physical address of main memory" if MMU
c6f54a9b 265 depends on !ARM_PATCH_PHYS_VIRT
974c0724 266 default DRAM_BASE if !MMU
c6f54a9b
UKK
267 default 0x00000000 if ARCH_EBSA110 || \
268 EP93XX_SDCE3_SYNC_PHYS_OFFSET || \
269 ARCH_FOOTBRIDGE || \
270 ARCH_INTEGRATOR || \
271 ARCH_IOP13XX || \
272 ARCH_KS8695 || \
273 (ARCH_REALVIEW && !REALVIEW_HIGH_PHYS_OFFSET)
274 default 0x10000000 if ARCH_OMAP1 || ARCH_RPC
275 default 0x20000000 if ARCH_S5PV210
276 default 0x70000000 if REALVIEW_HIGH_PHYS_OFFSET
277 default 0xc0000000 if EP93XX_SDCE0_PHYS_OFFSET || ARCH_SA1100
278 default 0xd0000000 if EP93XX_SDCE1_PHYS_OFFSET
279 default 0xe0000000 if EP93XX_SDCE2_PHYS_OFFSET
280 default 0xf0000000 if EP93XX_SDCE3_ASYNC_PHYS_OFFSET
111e9a5c 281 help
1b9f95f8
NP
282 Please provide the physical address corresponding to the
283 location of main memory in your system.
cada3c08 284
87e040b6
SG
285config GENERIC_BUG
286 def_bool y
287 depends on BUG
288
1da177e4
LT
289source "init/Kconfig"
290
dc52ddc0
MH
291source "kernel/Kconfig.freezer"
292
1da177e4
LT
293menu "System Type"
294
3c427975
HC
295config MMU
296 bool "MMU-based Paged Memory Management Support"
297 default y
298 help
299 Select if you want MMU-based virtualised addressing space
300 support by paged memory management. If unsure, say 'Y'.
301
ccf50e23
RK
302#
303# The "ARM system type" choice list is ordered alphabetically by option
304# text. Please add new entries in the option alphabetic order.
305#
1da177e4
LT
306choice
307 prompt "ARM system type"
1420b22b
AB
308 default ARCH_VERSATILE if !MMU
309 default ARCH_MULTIPLATFORM if MMU
1da177e4 310
387798b3
RH
311config ARCH_MULTIPLATFORM
312 bool "Allow multiple platforms to be selected"
b1b3f49c 313 depends on MMU
ddb902cc 314 select ARCH_WANT_OPTIONAL_GPIOLIB
42dc836d 315 select ARM_HAS_SG_CHAIN
387798b3
RH
316 select ARM_PATCH_PHYS_VIRT
317 select AUTO_ZRELADDR
6d0add40 318 select CLKSRC_OF
66314223 319 select COMMON_CLK
ddb902cc 320 select GENERIC_CLOCKEVENTS
08d38beb 321 select MIGHT_HAVE_PCI
387798b3 322 select MULTI_IRQ_HANDLER
66314223
DN
323 select SPARSE_IRQ
324 select USE_OF
66314223 325
4af6fee1
DS
326config ARCH_REALVIEW
327 bool "ARM Ltd. RealView family"
b1b3f49c 328 select ARCH_WANT_OPTIONAL_GPIOLIB
4af6fee1 329 select ARM_AMBA
b1b3f49c 330 select ARM_TIMER_SP804
f9a6aa43
LW
331 select COMMON_CLK
332 select COMMON_CLK_VERSATILE
ae30ceac 333 select GENERIC_CLOCKEVENTS
b56ba8aa 334 select GPIO_PL061 if GPIOLIB
b1b3f49c 335 select ICST
0cdc8b92 336 select NEED_MACH_MEMORY_H
b1b3f49c 337 select PLAT_VERSATILE
81cc3f86 338 select PLAT_VERSATILE_SCHED_CLOCK
4af6fee1
DS
339 help
340 This enables support for ARM Ltd RealView boards.
341
342config ARCH_VERSATILE
343 bool "ARM Ltd. Versatile family"
b1b3f49c 344 select ARCH_WANT_OPTIONAL_GPIOLIB
4af6fee1 345 select ARM_AMBA
b1b3f49c 346 select ARM_TIMER_SP804
4af6fee1 347 select ARM_VIC
6d803ba7 348 select CLKDEV_LOOKUP
b1b3f49c 349 select GENERIC_CLOCKEVENTS
aa3831cf 350 select HAVE_MACH_CLKDEV
c5a0adb5 351 select ICST
f4b8b319 352 select PLAT_VERSATILE
b1b3f49c 353 select PLAT_VERSATILE_CLOCK
81cc3f86 354 select PLAT_VERSATILE_SCHED_CLOCK
2389d501 355 select VERSATILE_FPGA_IRQ
4af6fee1
DS
356 help
357 This enables support for ARM Ltd Versatile board.
358
8fc5ffa0
AV
359config ARCH_AT91
360 bool "Atmel AT91"
f373e8c0 361 select ARCH_REQUIRE_GPIOLIB
bd602995 362 select CLKDEV_LOOKUP
e261501d 363 select IRQ_DOMAIN
1ac02d79 364 select NEED_MACH_IO_H if PCCARD
6732ae5c 365 select PINCTRL
d48346c1
NF
366 select PINCTRL_AT91
367 select USE_OF
4af6fee1 368 help
929e994f 369 This enables support for systems based on Atmel
32963a8e 370 AT91RM9200, AT91SAM9 and SAMA5 processors.
4af6fee1 371
93e22567
RK
372config ARCH_CLPS711X
373 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
a3b8d4a5 374 select ARCH_REQUIRE_GPIOLIB
ea7d1bc9 375 select AUTO_ZRELADDR
c99f72ad 376 select CLKSRC_MMIO
93e22567
RK
377 select COMMON_CLK
378 select CPU_ARM720T
4a8355c4 379 select GENERIC_CLOCKEVENTS
6597619f 380 select MFD_SYSCON
e4e3a37d 381 select SOC_BUS
93e22567
RK
382 help
383 Support for Cirrus Logic 711x/721x/731x based boards.
384
788c9700
RK
385config ARCH_GEMINI
386 bool "Cortina Systems Gemini"
788c9700 387 select ARCH_REQUIRE_GPIOLIB
f3372c01 388 select CLKSRC_MMIO
b1b3f49c 389 select CPU_FA526
f3372c01 390 select GENERIC_CLOCKEVENTS
788c9700
RK
391 help
392 Support for the Cortina Systems Gemini family SoCs
393
1da177e4
LT
394config ARCH_EBSA110
395 bool "EBSA-110"
b1b3f49c 396 select ARCH_USES_GETTIMEOFFSET
c750815e 397 select CPU_SA110
f7e68bbf 398 select ISA
c334bc15 399 select NEED_MACH_IO_H
0cdc8b92 400 select NEED_MACH_MEMORY_H
ce816fa8 401 select NO_IOPORT_MAP
1da177e4
LT
402 help
403 This is an evaluation board for the StrongARM processor available
f6c8965a 404 from Digital. It has limited hardware on-board, including an
1da177e4
LT
405 Ethernet interface, two PCMCIA sockets, two serial ports and a
406 parallel port.
407
6d85e2b0
UKK
408config ARCH_EFM32
409 bool "Energy Micro efm32"
410 depends on !MMU
411 select ARCH_REQUIRE_GPIOLIB
412 select ARM_NVIC
51aaf81f 413 select AUTO_ZRELADDR
6d85e2b0
UKK
414 select CLKSRC_OF
415 select COMMON_CLK
416 select CPU_V7M
417 select GENERIC_CLOCKEVENTS
418 select NO_DMA
ce816fa8 419 select NO_IOPORT_MAP
6d85e2b0
UKK
420 select SPARSE_IRQ
421 select USE_OF
422 help
423 Support for Energy Micro's (now Silicon Labs) efm32 Giant Gecko
424 processors.
425
e7736d47
LB
426config ARCH_EP93XX
427 bool "EP93xx-based"
b1b3f49c
RK
428 select ARCH_HAS_HOLES_MEMORYMODEL
429 select ARCH_REQUIRE_GPIOLIB
430 select ARCH_USES_GETTIMEOFFSET
e7736d47
LB
431 select ARM_AMBA
432 select ARM_VIC
6d803ba7 433 select CLKDEV_LOOKUP
b1b3f49c 434 select CPU_ARM920T
e7736d47
LB
435 help
436 This enables support for the Cirrus EP93xx series of CPUs.
437
1da177e4
LT
438config ARCH_FOOTBRIDGE
439 bool "FootBridge"
c750815e 440 select CPU_SA110
1da177e4 441 select FOOTBRIDGE
4e8d7637 442 select GENERIC_CLOCKEVENTS
d0ee9f40 443 select HAVE_IDE
8ef6e620 444 select NEED_MACH_IO_H if !MMU
0cdc8b92 445 select NEED_MACH_MEMORY_H
f999b8bd
MM
446 help
447 Support for systems based on the DC21285 companion chip
448 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
1da177e4 449
4af6fee1
DS
450config ARCH_NETX
451 bool "Hilscher NetX based"
b1b3f49c 452 select ARM_VIC
234b6ced 453 select CLKSRC_MMIO
c750815e 454 select CPU_ARM926T
2fcfe6b8 455 select GENERIC_CLOCKEVENTS
f999b8bd 456 help
4af6fee1
DS
457 This enables support for systems based on the Hilscher NetX Soc
458
3b938be6
RK
459config ARCH_IOP13XX
460 bool "IOP13xx-based"
461 depends on MMU
b1b3f49c 462 select CPU_XSC3
0cdc8b92 463 select NEED_MACH_MEMORY_H
13a5045d 464 select NEED_RET_TO_USER
b1b3f49c
RK
465 select PCI
466 select PLAT_IOP
467 select VMSPLIT_1G
37ebbcff 468 select SPARSE_IRQ
3b938be6
RK
469 help
470 Support for Intel's IOP13XX (XScale) family of processors.
471
3f7e5815
LB
472config ARCH_IOP32X
473 bool "IOP32x-based"
a4f7e763 474 depends on MMU
b1b3f49c 475 select ARCH_REQUIRE_GPIOLIB
c750815e 476 select CPU_XSCALE
e9004f50 477 select GPIO_IOP
13a5045d 478 select NEED_RET_TO_USER
f7e68bbf 479 select PCI
b1b3f49c 480 select PLAT_IOP
f999b8bd 481 help
3f7e5815
LB
482 Support for Intel's 80219 and IOP32X (XScale) family of
483 processors.
484
485config ARCH_IOP33X
486 bool "IOP33x-based"
487 depends on MMU
b1b3f49c 488 select ARCH_REQUIRE_GPIOLIB
c750815e 489 select CPU_XSCALE
e9004f50 490 select GPIO_IOP
13a5045d 491 select NEED_RET_TO_USER
3f7e5815 492 select PCI
b1b3f49c 493 select PLAT_IOP
3f7e5815
LB
494 help
495 Support for Intel's IOP33X (XScale) family of processors.
1da177e4 496
3b938be6
RK
497config ARCH_IXP4XX
498 bool "IXP4xx-based"
a4f7e763 499 depends on MMU
58af4a24 500 select ARCH_HAS_DMA_SET_COHERENT_MASK
b1b3f49c 501 select ARCH_REQUIRE_GPIOLIB
51aaf81f 502 select ARCH_SUPPORTS_BIG_ENDIAN
234b6ced 503 select CLKSRC_MMIO
c750815e 504 select CPU_XSCALE
b1b3f49c 505 select DMABOUNCE if PCI
3b938be6 506 select GENERIC_CLOCKEVENTS
0b05da72 507 select MIGHT_HAVE_PCI
c334bc15 508 select NEED_MACH_IO_H
9296d94d 509 select USB_EHCI_BIG_ENDIAN_DESC
171b3f0d 510 select USB_EHCI_BIG_ENDIAN_MMIO
c4713074 511 help
3b938be6 512 Support for Intel's IXP4XX (XScale) family of processors.
c4713074 513
edabd38e
SB
514config ARCH_DOVE
515 bool "Marvell Dove"
edabd38e 516 select ARCH_REQUIRE_GPIOLIB
756b2531 517 select CPU_PJ4
edabd38e 518 select GENERIC_CLOCKEVENTS
0f81bd43 519 select MIGHT_HAVE_PCI
171b3f0d 520 select MVEBU_MBUS
9139acd1
SH
521 select PINCTRL
522 select PINCTRL_DOVE
abcda1dc 523 select PLAT_ORION_LEGACY
edabd38e
SB
524 help
525 Support for the Marvell Dove SoC 88AP510
526
794d15b2
SS
527config ARCH_MV78XX0
528 bool "Marvell MV78xx0"
a8865655 529 select ARCH_REQUIRE_GPIOLIB
b1b3f49c 530 select CPU_FEROCEON
794d15b2 531 select GENERIC_CLOCKEVENTS
171b3f0d 532 select MVEBU_MBUS
b1b3f49c 533 select PCI
abcda1dc 534 select PLAT_ORION_LEGACY
794d15b2
SS
535 help
536 Support for the following Marvell MV78xx0 series SoCs:
537 MV781x0, MV782x0.
538
9dd0b194 539config ARCH_ORION5X
585cf175
TP
540 bool "Marvell Orion"
541 depends on MMU
a8865655 542 select ARCH_REQUIRE_GPIOLIB
b1b3f49c 543 select CPU_FEROCEON
51cbff1d 544 select GENERIC_CLOCKEVENTS
171b3f0d 545 select MVEBU_MBUS
b1b3f49c 546 select PCI
abcda1dc 547 select PLAT_ORION_LEGACY
585cf175 548 help
9dd0b194 549 Support for the following Marvell Orion 5x series SoCs:
d2b2a6bb 550 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
d323ade1 551 Orion-2 (5281), Orion-1-90 (6183).
585cf175 552
788c9700 553config ARCH_MMP
2f7e8fae 554 bool "Marvell PXA168/910/MMP2"
788c9700 555 depends on MMU
788c9700 556 select ARCH_REQUIRE_GPIOLIB
6d803ba7 557 select CLKDEV_LOOKUP
b1b3f49c 558 select GENERIC_ALLOCATOR
788c9700 559 select GENERIC_CLOCKEVENTS
157d2644 560 select GPIO_PXA
c24b3114 561 select IRQ_DOMAIN
0f374561 562 select MULTI_IRQ_HANDLER
7c8f86a4 563 select PINCTRL
788c9700 564 select PLAT_PXA
0bd86961 565 select SPARSE_IRQ
788c9700 566 help
2f7e8fae 567 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
788c9700
RK
568
569config ARCH_KS8695
570 bool "Micrel/Kendin KS8695"
98830bc9 571 select ARCH_REQUIRE_GPIOLIB
c7e783d6 572 select CLKSRC_MMIO
b1b3f49c 573 select CPU_ARM922T
c7e783d6 574 select GENERIC_CLOCKEVENTS
b1b3f49c 575 select NEED_MACH_MEMORY_H
788c9700
RK
576 help
577 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
578 System-on-Chip devices.
579
788c9700
RK
580config ARCH_W90X900
581 bool "Nuvoton W90X900 CPU"
c52d3d68 582 select ARCH_REQUIRE_GPIOLIB
6d803ba7 583 select CLKDEV_LOOKUP
6fa5d5f7 584 select CLKSRC_MMIO
b1b3f49c 585 select CPU_ARM926T
58b5369e 586 select GENERIC_CLOCKEVENTS
788c9700 587 help
a8bc4ead 588 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
589 At present, the w90x900 has been renamed nuc900, regarding
590 the ARM series product line, you can login the following
591 link address to know more.
592
593 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
594 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
788c9700 595
93e22567
RK
596config ARCH_LPC32XX
597 bool "NXP LPC32XX"
598 select ARCH_REQUIRE_GPIOLIB
599 select ARM_AMBA
600 select CLKDEV_LOOKUP
601 select CLKSRC_MMIO
602 select CPU_ARM926T
603 select GENERIC_CLOCKEVENTS
604 select HAVE_IDE
93e22567
RK
605 select USE_OF
606 help
607 Support for the NXP LPC32XX family of processors
608
1da177e4 609config ARCH_PXA
2c8086a5 610 bool "PXA2xx/PXA3xx-based"
a4f7e763 611 depends on MMU
b1b3f49c
RK
612 select ARCH_MTD_XIP
613 select ARCH_REQUIRE_GPIOLIB
614 select ARM_CPU_SUSPEND if PM
615 select AUTO_ZRELADDR
6d803ba7 616 select CLKDEV_LOOKUP
234b6ced 617 select CLKSRC_MMIO
6f6caeaa 618 select CLKSRC_OF
981d0f39 619 select GENERIC_CLOCKEVENTS
157d2644 620 select GPIO_PXA
d0ee9f40 621 select HAVE_IDE
b1b3f49c 622 select MULTI_IRQ_HANDLER
b1b3f49c
RK
623 select PLAT_PXA
624 select SPARSE_IRQ
f999b8bd 625 help
2c8086a5 626 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
1da177e4 627
8fc1b0f8
KG
628config ARCH_MSM
629 bool "Qualcomm MSM (non-multiplatform)"
923a081c 630 select ARCH_REQUIRE_GPIOLIB
8cc7f533 631 select COMMON_CLK
b1b3f49c 632 select GENERIC_CLOCKEVENTS
49cbe786 633 help
4b53eb4f
DW
634 Support for Qualcomm MSM/QSD based systems. This runs on the
635 apps processor of the MSM/QSD and depends on a shared memory
636 interface to the modem processor which runs the baseband
637 stack and controls some vital subsystems
638 (clock and power control, etc).
49cbe786 639
bf98c1ea 640config ARCH_SHMOBILE_LEGACY
0d9fd616 641 bool "Renesas ARM SoCs (non-multiplatform)"
bf98c1ea 642 select ARCH_SHMOBILE
91942d17 643 select ARM_PATCH_PHYS_VIRT if MMU
5e93c6b4 644 select CLKDEV_LOOKUP
0ed82bc9 645 select CPU_V7
b1b3f49c 646 select GENERIC_CLOCKEVENTS
4c3ffffd 647 select HAVE_ARM_SCU if SMP
a894fcc2 648 select HAVE_ARM_TWD if SMP
aa3831cf 649 select HAVE_MACH_CLKDEV
3b55658a 650 select HAVE_SMP
ce5ea9f3 651 select MIGHT_HAVE_CACHE_L2X0
60f1435c 652 select MULTI_IRQ_HANDLER
ce816fa8 653 select NO_IOPORT_MAP
2cd3c927 654 select PINCTRL
b1b3f49c 655 select PM_GENERIC_DOMAINS if PM
0cdc23df 656 select SH_CLK_CPG
b1b3f49c 657 select SPARSE_IRQ
c793c1b0 658 help
0d9fd616
LP
659 Support for Renesas ARM SoC platforms using a non-multiplatform
660 kernel. This includes the SH-Mobile, R-Mobile, EMMA-Mobile, R-Car
661 and RZ families.
c793c1b0 662
1da177e4
LT
663config ARCH_RPC
664 bool "RiscPC"
665 select ARCH_ACORN
a08b6b79 666 select ARCH_MAY_HAVE_PC_FDC
07f841b7 667 select ARCH_SPARSEMEM_ENABLE
5cfc8ee0 668 select ARCH_USES_GETTIMEOFFSET
fa04e209 669 select CPU_SA110
b1b3f49c 670 select FIQ
d0ee9f40 671 select HAVE_IDE
b1b3f49c
RK
672 select HAVE_PATA_PLATFORM
673 select ISA_DMA_API
c334bc15 674 select NEED_MACH_IO_H
0cdc8b92 675 select NEED_MACH_MEMORY_H
ce816fa8 676 select NO_IOPORT_MAP
b4811bac 677 select VIRT_TO_BUS
1da177e4
LT
678 help
679 On the Acorn Risc-PC, Linux can support the internal IDE disk and
680 CD-ROM interface, serial and parallel port, and the floppy drive.
681
682config ARCH_SA1100
683 bool "SA1100-based"
b1b3f49c
RK
684 select ARCH_MTD_XIP
685 select ARCH_REQUIRE_GPIOLIB
686 select ARCH_SPARSEMEM_ENABLE
687 select CLKDEV_LOOKUP
688 select CLKSRC_MMIO
1937f5b9 689 select CPU_FREQ
b1b3f49c 690 select CPU_SA1100
3e238be2 691 select GENERIC_CLOCKEVENTS
d0ee9f40 692 select HAVE_IDE
1eca42b4 693 select IRQ_DOMAIN
b1b3f49c 694 select ISA
affcab32 695 select MULTI_IRQ_HANDLER
0cdc8b92 696 select NEED_MACH_MEMORY_H
375dec92 697 select SPARSE_IRQ
f999b8bd
MM
698 help
699 Support for StrongARM 11x0 based boards.
1da177e4 700
b130d5c2
KK
701config ARCH_S3C24XX
702 bool "Samsung S3C24XX SoCs"
53650430 703 select ARCH_REQUIRE_GPIOLIB
335cce74 704 select ATAGS
b1b3f49c 705 select CLKDEV_LOOKUP
4280506a 706 select CLKSRC_SAMSUNG_PWM
7f78b6eb 707 select GENERIC_CLOCKEVENTS
880cf071 708 select GPIO_SAMSUNG
20676c15 709 select HAVE_S3C2410_I2C if I2C
b130d5c2 710 select HAVE_S3C2410_WATCHDOG if WATCHDOG
b1b3f49c 711 select HAVE_S3C_RTC if RTC_CLASS
17453dd2 712 select MULTI_IRQ_HANDLER
c334bc15 713 select NEED_MACH_IO_H
cd8dc7ae 714 select SAMSUNG_ATAGS
1da177e4 715 help
b130d5c2
KK
716 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
717 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
718 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
719 Samsung SMDK2410 development board (and derivatives).
63b1f51b 720
a08ab637
BD
721config ARCH_S3C64XX
722 bool "Samsung S3C64XX"
b1b3f49c 723 select ARCH_REQUIRE_GPIOLIB
1db0287a 724 select ARM_AMBA
89f0ce72 725 select ARM_VIC
335cce74 726 select ATAGS
b1b3f49c 727 select CLKDEV_LOOKUP
4280506a 728 select CLKSRC_SAMSUNG_PWM
ccecba3c 729 select COMMON_CLK_SAMSUNG
70bacadb 730 select CPU_V6K
04a49b71 731 select GENERIC_CLOCKEVENTS
880cf071 732 select GPIO_SAMSUNG
b1b3f49c
RK
733 select HAVE_S3C2410_I2C if I2C
734 select HAVE_S3C2410_WATCHDOG if WATCHDOG
6700397a 735 select HAVE_TCM
ce816fa8 736 select NO_IOPORT_MAP
b1b3f49c 737 select PLAT_SAMSUNG
4ab75a3f 738 select PM_GENERIC_DOMAINS if PM
b1b3f49c
RK
739 select S3C_DEV_NAND
740 select S3C_GPIO_TRACK
cd8dc7ae 741 select SAMSUNG_ATAGS
6e2d9e93 742 select SAMSUNG_WAKEMASK
88f59738 743 select SAMSUNG_WDT_RESET
a08ab637
BD
744 help
745 Samsung S3C64XX series based systems
746
7c6337e2
KH
747config ARCH_DAVINCI
748 bool "TI DaVinci"
b1b3f49c 749 select ARCH_HAS_HOLES_MEMORYMODEL
dce1115b 750 select ARCH_REQUIRE_GPIOLIB
6d803ba7 751 select CLKDEV_LOOKUP
20e9969b 752 select GENERIC_ALLOCATOR
b1b3f49c 753 select GENERIC_CLOCKEVENTS
dc7ad3b3 754 select GENERIC_IRQ_CHIP
b1b3f49c 755 select HAVE_IDE
3ad7a42d 756 select TI_PRIV_EDMA
689e331f 757 select USE_OF
b1b3f49c 758 select ZONE_DMA
7c6337e2
KH
759 help
760 Support for TI's DaVinci platform.
761
a0694861
TL
762config ARCH_OMAP1
763 bool "TI OMAP1"
00a36698 764 depends on MMU
9af915da 765 select ARCH_HAS_HOLES_MEMORYMODEL
a0694861 766 select ARCH_OMAP
21f47fbc 767 select ARCH_REQUIRE_GPIOLIB
b1b3f49c 768 select CLKDEV_LOOKUP
d6e15d78 769 select CLKSRC_MMIO
b1b3f49c 770 select GENERIC_CLOCKEVENTS
a0694861 771 select GENERIC_IRQ_CHIP
a0694861
TL
772 select HAVE_IDE
773 select IRQ_DOMAIN
774 select NEED_MACH_IO_H if PCCARD
775 select NEED_MACH_MEMORY_H
21f47fbc 776 help
a0694861 777 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
02c981c0 778
1da177e4
LT
779endchoice
780
387798b3
RH
781menu "Multiple platform selection"
782 depends on ARCH_MULTIPLATFORM
783
784comment "CPU Core family selection"
785
f8afae40
AB
786config ARCH_MULTI_V4
787 bool "ARMv4 based platforms (FA526)"
788 depends on !ARCH_MULTI_V6_V7
789 select ARCH_MULTI_V4_V5
790 select CPU_FA526
791
387798b3
RH
792config ARCH_MULTI_V4T
793 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
387798b3 794 depends on !ARCH_MULTI_V6_V7
b1b3f49c 795 select ARCH_MULTI_V4_V5
24e860fb
AB
796 select CPU_ARM920T if !(CPU_ARM7TDMI || CPU_ARM720T || \
797 CPU_ARM740T || CPU_ARM9TDMI || CPU_ARM922T || \
798 CPU_ARM925T || CPU_ARM940T)
387798b3
RH
799
800config ARCH_MULTI_V5
801 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
387798b3 802 depends on !ARCH_MULTI_V6_V7
b1b3f49c 803 select ARCH_MULTI_V4_V5
12567bbd 804 select CPU_ARM926T if !(CPU_ARM946E || CPU_ARM1020 || \
24e860fb
AB
805 CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || \
806 CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_FEROCEON)
387798b3
RH
807
808config ARCH_MULTI_V4_V5
809 bool
810
811config ARCH_MULTI_V6
8dda05cc 812 bool "ARMv6 based platforms (ARM11)"
387798b3 813 select ARCH_MULTI_V6_V7
42f4754a 814 select CPU_V6K
387798b3
RH
815
816config ARCH_MULTI_V7
8dda05cc 817 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
387798b3
RH
818 default y
819 select ARCH_MULTI_V6_V7
b1b3f49c 820 select CPU_V7
90bc8ac7 821 select HAVE_SMP
387798b3
RH
822
823config ARCH_MULTI_V6_V7
824 bool
9352b05b 825 select MIGHT_HAVE_CACHE_L2X0
387798b3
RH
826
827config ARCH_MULTI_CPU_AUTO
828 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
829 select ARCH_MULTI_V5
830
831endmenu
832
05e2a3de
RH
833config ARCH_VIRT
834 bool "Dummy Virtual Machine" if ARCH_MULTI_V7
4b8b5f25 835 select ARM_AMBA
05e2a3de 836 select ARM_GIC
05e2a3de 837 select ARM_PSCI
4b8b5f25 838 select HAVE_ARM_ARCH_TIMER
05e2a3de 839
ccf50e23
RK
840#
841# This is sorted alphabetically by mach-* pathname. However, plat-*
842# Kconfigs may be included either alphabetically (according to the
843# plat- suffix) or along side the corresponding mach-* source.
844#
3e93a22b
GC
845source "arch/arm/mach-mvebu/Kconfig"
846
d9bfc86d
OR
847source "arch/arm/mach-asm9260/Kconfig"
848
95b8f20f
RK
849source "arch/arm/mach-at91/Kconfig"
850
1d22924e
AB
851source "arch/arm/mach-axxia/Kconfig"
852
8ac49e04
CD
853source "arch/arm/mach-bcm/Kconfig"
854
1c37fa10
SH
855source "arch/arm/mach-berlin/Kconfig"
856
1da177e4
LT
857source "arch/arm/mach-clps711x/Kconfig"
858
d94f944e
AV
859source "arch/arm/mach-cns3xxx/Kconfig"
860
95b8f20f
RK
861source "arch/arm/mach-davinci/Kconfig"
862
df8d742e
BS
863source "arch/arm/mach-digicolor/Kconfig"
864
95b8f20f
RK
865source "arch/arm/mach-dove/Kconfig"
866
e7736d47
LB
867source "arch/arm/mach-ep93xx/Kconfig"
868
1da177e4
LT
869source "arch/arm/mach-footbridge/Kconfig"
870
59d3a193
PZ
871source "arch/arm/mach-gemini/Kconfig"
872
387798b3
RH
873source "arch/arm/mach-highbank/Kconfig"
874
389ee0c2
HZ
875source "arch/arm/mach-hisi/Kconfig"
876
1da177e4
LT
877source "arch/arm/mach-integrator/Kconfig"
878
3f7e5815
LB
879source "arch/arm/mach-iop32x/Kconfig"
880
881source "arch/arm/mach-iop33x/Kconfig"
1da177e4 882
285f5fa7
DW
883source "arch/arm/mach-iop13xx/Kconfig"
884
1da177e4
LT
885source "arch/arm/mach-ixp4xx/Kconfig"
886
828989ad
SS
887source "arch/arm/mach-keystone/Kconfig"
888
95b8f20f
RK
889source "arch/arm/mach-ks8695/Kconfig"
890
3b8f5030
CC
891source "arch/arm/mach-meson/Kconfig"
892
95b8f20f
RK
893source "arch/arm/mach-msm/Kconfig"
894
17723fd3
JJ
895source "arch/arm/mach-moxart/Kconfig"
896
794d15b2
SS
897source "arch/arm/mach-mv78xx0/Kconfig"
898
3995eb82 899source "arch/arm/mach-imx/Kconfig"
1da177e4 900
f682a218
MB
901source "arch/arm/mach-mediatek/Kconfig"
902
1d3f33d5
SG
903source "arch/arm/mach-mxs/Kconfig"
904
95b8f20f 905source "arch/arm/mach-netx/Kconfig"
49cbe786 906
95b8f20f 907source "arch/arm/mach-nomadik/Kconfig"
95b8f20f 908
9851ca57
DT
909source "arch/arm/mach-nspire/Kconfig"
910
d48af15e
TL
911source "arch/arm/plat-omap/Kconfig"
912
913source "arch/arm/mach-omap1/Kconfig"
1da177e4 914
1dbae815
TL
915source "arch/arm/mach-omap2/Kconfig"
916
9dd0b194 917source "arch/arm/mach-orion5x/Kconfig"
585cf175 918
387798b3
RH
919source "arch/arm/mach-picoxcell/Kconfig"
920
95b8f20f
RK
921source "arch/arm/mach-pxa/Kconfig"
922source "arch/arm/plat-pxa/Kconfig"
585cf175 923
95b8f20f
RK
924source "arch/arm/mach-mmp/Kconfig"
925
8fc1b0f8
KG
926source "arch/arm/mach-qcom/Kconfig"
927
95b8f20f
RK
928source "arch/arm/mach-realview/Kconfig"
929
d63dc051
HS
930source "arch/arm/mach-rockchip/Kconfig"
931
95b8f20f 932source "arch/arm/mach-sa1100/Kconfig"
edabd38e 933
387798b3
RH
934source "arch/arm/mach-socfpga/Kconfig"
935
a7ed099f 936source "arch/arm/mach-spear/Kconfig"
a21765a7 937
65ebcc11
SK
938source "arch/arm/mach-sti/Kconfig"
939
85fd6d63 940source "arch/arm/mach-s3c24xx/Kconfig"
1da177e4 941
431107ea 942source "arch/arm/mach-s3c64xx/Kconfig"
a08ab637 943
170f4e42
KK
944source "arch/arm/mach-s5pv210/Kconfig"
945
83014579 946source "arch/arm/mach-exynos/Kconfig"
e509b289 947source "arch/arm/plat-samsung/Kconfig"
cc0e72b8 948
882d01f9 949source "arch/arm/mach-shmobile/Kconfig"
52c543f9 950
3b52634f
MR
951source "arch/arm/mach-sunxi/Kconfig"
952
156a0997
BS
953source "arch/arm/mach-prima2/Kconfig"
954
c5f80065
EG
955source "arch/arm/mach-tegra/Kconfig"
956
95b8f20f 957source "arch/arm/mach-u300/Kconfig"
1da177e4 958
95b8f20f 959source "arch/arm/mach-ux500/Kconfig"
1da177e4
LT
960
961source "arch/arm/mach-versatile/Kconfig"
962
ceade897 963source "arch/arm/mach-vexpress/Kconfig"
420c34e4 964source "arch/arm/plat-versatile/Kconfig"
ceade897 965
6f35f9a9
TP
966source "arch/arm/mach-vt8500/Kconfig"
967
7ec80ddf 968source "arch/arm/mach-w90x900/Kconfig"
969
9a45eb69
JC
970source "arch/arm/mach-zynq/Kconfig"
971
1da177e4
LT
972# Definitions to make life easier
973config ARCH_ACORN
974 bool
975
7ae1f7ec
LB
976config PLAT_IOP
977 bool
469d3044 978 select GENERIC_CLOCKEVENTS
7ae1f7ec 979
69b02f6a
LB
980config PLAT_ORION
981 bool
bfe45e0b 982 select CLKSRC_MMIO
b1b3f49c 983 select COMMON_CLK
dc7ad3b3 984 select GENERIC_IRQ_CHIP
278b45b0 985 select IRQ_DOMAIN
69b02f6a 986
abcda1dc
TP
987config PLAT_ORION_LEGACY
988 bool
989 select PLAT_ORION
990
bd5ce433
EM
991config PLAT_PXA
992 bool
993
f4b8b319
RK
994config PLAT_VERSATILE
995 bool
996
e3887714
RK
997config ARM_TIMER_SP804
998 bool
bfe45e0b 999 select CLKSRC_MMIO
7a0eca71 1000 select CLKSRC_OF if OF
e3887714 1001
d9a1beaa
AC
1002source "arch/arm/firmware/Kconfig"
1003
1da177e4
LT
1004source arch/arm/mm/Kconfig
1005
afe4b25e 1006config IWMMXT
d93003e8
SH
1007 bool "Enable iWMMXt support"
1008 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4 || CPU_PJ4B
1009 default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4 || CPU_PJ4B
afe4b25e
LB
1010 help
1011 Enable support for iWMMXt context switching at run time if
1012 running on a CPU that supports it.
1013
52108641 1014config MULTI_IRQ_HANDLER
1015 bool
1016 help
1017 Allow each machine to specify it's own IRQ handler at run time.
1018
3b93e7b0
HC
1019if !MMU
1020source "arch/arm/Kconfig-nommu"
1021endif
1022
3e0a07f8
GC
1023config PJ4B_ERRATA_4742
1024 bool "PJ4B Errata 4742: IDLE Wake Up Commands can Cause the CPU Core to Cease Operation"
1025 depends on CPU_PJ4B && MACH_ARMADA_370
1026 default y
1027 help
1028 When coming out of either a Wait for Interrupt (WFI) or a Wait for
1029 Event (WFE) IDLE states, a specific timing sensitivity exists between
1030 the retiring WFI/WFE instructions and the newly issued subsequent
1031 instructions. This sensitivity can result in a CPU hang scenario.
1032 Workaround:
1033 The software must insert either a Data Synchronization Barrier (DSB)
1034 or Data Memory Barrier (DMB) command immediately after the WFI/WFE
1035 instruction
1036
f0c4b8d6
WD
1037config ARM_ERRATA_326103
1038 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1039 depends on CPU_V6
1040 help
1041 Executing a SWP instruction to read-only memory does not set bit 11
1042 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1043 treat the access as a read, preventing a COW from occurring and
1044 causing the faulting task to livelock.
1045
9cba3ccc
CM
1046config ARM_ERRATA_411920
1047 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
e399b1a4 1048 depends on CPU_V6 || CPU_V6K
9cba3ccc
CM
1049 help
1050 Invalidation of the Instruction Cache operation can
1051 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1052 It does not affect the MPCore. This option enables the ARM Ltd.
1053 recommended workaround.
1054
7ce236fc
CM
1055config ARM_ERRATA_430973
1056 bool "ARM errata: Stale prediction on replaced interworking branch"
1057 depends on CPU_V7
1058 help
1059 This option enables the workaround for the 430973 Cortex-A8
1060 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1061 interworking branch is replaced with another code sequence at the
1062 same virtual address, whether due to self-modifying code or virtual
1063 to physical address re-mapping, Cortex-A8 does not recover from the
1064 stale interworking branch prediction. This results in Cortex-A8
1065 executing the new code sequence in the incorrect ARM or Thumb state.
1066 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1067 and also flushes the branch target cache at every context switch.
1068 Note that setting specific bits in the ACTLR register may not be
1069 available in non-secure mode.
1070
855c551f
CM
1071config ARM_ERRATA_458693
1072 bool "ARM errata: Processor deadlock when a false hazard is created"
1073 depends on CPU_V7
62e4d357 1074 depends on !ARCH_MULTIPLATFORM
855c551f
CM
1075 help
1076 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1077 erratum. For very specific sequences of memory operations, it is
1078 possible for a hazard condition intended for a cache line to instead
1079 be incorrectly associated with a different cache line. This false
1080 hazard might then cause a processor deadlock. The workaround enables
1081 the L1 caching of the NEON accesses and disables the PLD instruction
1082 in the ACTLR register. Note that setting specific bits in the ACTLR
1083 register may not be available in non-secure mode.
1084
0516e464
CM
1085config ARM_ERRATA_460075
1086 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1087 depends on CPU_V7
62e4d357 1088 depends on !ARCH_MULTIPLATFORM
0516e464
CM
1089 help
1090 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1091 erratum. Any asynchronous access to the L2 cache may encounter a
1092 situation in which recent store transactions to the L2 cache are lost
1093 and overwritten with stale memory contents from external memory. The
1094 workaround disables the write-allocate mode for the L2 cache via the
1095 ACTLR register. Note that setting specific bits in the ACTLR register
1096 may not be available in non-secure mode.
1097
9f05027c
WD
1098config ARM_ERRATA_742230
1099 bool "ARM errata: DMB operation may be faulty"
1100 depends on CPU_V7 && SMP
62e4d357 1101 depends on !ARCH_MULTIPLATFORM
9f05027c
WD
1102 help
1103 This option enables the workaround for the 742230 Cortex-A9
1104 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1105 between two write operations may not ensure the correct visibility
1106 ordering of the two writes. This workaround sets a specific bit in
1107 the diagnostic register of the Cortex-A9 which causes the DMB
1108 instruction to behave as a DSB, ensuring the correct behaviour of
1109 the two writes.
1110
a672e99b
WD
1111config ARM_ERRATA_742231
1112 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1113 depends on CPU_V7 && SMP
62e4d357 1114 depends on !ARCH_MULTIPLATFORM
a672e99b
WD
1115 help
1116 This option enables the workaround for the 742231 Cortex-A9
1117 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1118 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1119 accessing some data located in the same cache line, may get corrupted
1120 data due to bad handling of the address hazard when the line gets
1121 replaced from one of the CPUs at the same time as another CPU is
1122 accessing it. This workaround sets specific bits in the diagnostic
1123 register of the Cortex-A9 which reduces the linefill issuing
1124 capabilities of the processor.
1125
69155794
JM
1126config ARM_ERRATA_643719
1127 bool "ARM errata: LoUIS bit field in CLIDR register is incorrect"
1128 depends on CPU_V7 && SMP
1129 help
1130 This option enables the workaround for the 643719 Cortex-A9 (prior to
1131 r1p0) erratum. On affected cores the LoUIS bit field of the CLIDR
1132 register returns zero when it should return one. The workaround
1133 corrects this value, ensuring cache maintenance operations which use
1134 it behave as intended and avoiding data corruption.
1135
cdf357f1
WD
1136config ARM_ERRATA_720789
1137 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
e66dc745 1138 depends on CPU_V7
cdf357f1
WD
1139 help
1140 This option enables the workaround for the 720789 Cortex-A9 (prior to
1141 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1142 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1143 As a consequence of this erratum, some TLB entries which should be
1144 invalidated are not, resulting in an incoherency in the system page
1145 tables. The workaround changes the TLB flushing routines to invalidate
1146 entries regardless of the ASID.
475d92fc
WD
1147
1148config ARM_ERRATA_743622
1149 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1150 depends on CPU_V7
62e4d357 1151 depends on !ARCH_MULTIPLATFORM
475d92fc
WD
1152 help
1153 This option enables the workaround for the 743622 Cortex-A9
efbc74ac 1154 (r2p*) erratum. Under very rare conditions, a faulty
475d92fc
WD
1155 optimisation in the Cortex-A9 Store Buffer may lead to data
1156 corruption. This workaround sets a specific bit in the diagnostic
1157 register of the Cortex-A9 which disables the Store Buffer
1158 optimisation, preventing the defect from occurring. This has no
1159 visible impact on the overall performance or power consumption of the
1160 processor.
1161
9a27c27c
WD
1162config ARM_ERRATA_751472
1163 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
ba90c516 1164 depends on CPU_V7
62e4d357 1165 depends on !ARCH_MULTIPLATFORM
9a27c27c
WD
1166 help
1167 This option enables the workaround for the 751472 Cortex-A9 (prior
1168 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1169 completion of a following broadcasted operation if the second
1170 operation is received by a CPU before the ICIALLUIS has completed,
1171 potentially leading to corrupted entries in the cache or TLB.
1172
fcbdc5fe
WD
1173config ARM_ERRATA_754322
1174 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1175 depends on CPU_V7
1176 help
1177 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1178 r3p*) erratum. A speculative memory access may cause a page table walk
1179 which starts prior to an ASID switch but completes afterwards. This
1180 can populate the micro-TLB with a stale entry which may be hit with
1181 the new ASID. This workaround places two dsb instructions in the mm
1182 switching code so that no page table walks can cross the ASID switch.
1183
5dab26af
WD
1184config ARM_ERRATA_754327
1185 bool "ARM errata: no automatic Store Buffer drain"
1186 depends on CPU_V7 && SMP
1187 help
1188 This option enables the workaround for the 754327 Cortex-A9 (prior to
1189 r2p0) erratum. The Store Buffer does not have any automatic draining
1190 mechanism and therefore a livelock may occur if an external agent
1191 continuously polls a memory location waiting to observe an update.
1192 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1193 written polling loops from denying visibility of updates to memory.
1194
145e10e1
CM
1195config ARM_ERRATA_364296
1196 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
fd832478 1197 depends on CPU_V6
145e10e1
CM
1198 help
1199 This options enables the workaround for the 364296 ARM1136
1200 r0p2 erratum (possible cache data corruption with
1201 hit-under-miss enabled). It sets the undocumented bit 31 in
1202 the auxiliary control register and the FI bit in the control
1203 register, thus disabling hit-under-miss without putting the
1204 processor into full low interrupt latency mode. ARM11MPCore
1205 is not affected.
1206
f630c1bd
WD
1207config ARM_ERRATA_764369
1208 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1209 depends on CPU_V7 && SMP
1210 help
1211 This option enables the workaround for erratum 764369
1212 affecting Cortex-A9 MPCore with two or more processors (all
1213 current revisions). Under certain timing circumstances, a data
1214 cache line maintenance operation by MVA targeting an Inner
1215 Shareable memory region may fail to proceed up to either the
1216 Point of Coherency or to the Point of Unification of the
1217 system. This workaround adds a DSB instruction before the
1218 relevant cache maintenance functions and sets a specific bit
1219 in the diagnostic control register of the SCU.
1220
7253b85c
SH
1221config ARM_ERRATA_775420
1222 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1223 depends on CPU_V7
1224 help
1225 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1226 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1227 operation aborts with MMU exception, it might cause the processor
1228 to deadlock. This workaround puts DSB before executing ISB if
1229 an abort may occur on cache maintenance.
1230
93dc6887
CM
1231config ARM_ERRATA_798181
1232 bool "ARM errata: TLBI/DSB failure on Cortex-A15"
1233 depends on CPU_V7 && SMP
1234 help
1235 On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
1236 adequately shooting down all use of the old entries. This
1237 option enables the Linux kernel workaround for this erratum
1238 which sends an IPI to the CPUs that are running the same ASID
1239 as the one being invalidated.
1240
84b6504f
WD
1241config ARM_ERRATA_773022
1242 bool "ARM errata: incorrect instructions may be executed from loop buffer"
1243 depends on CPU_V7
1244 help
1245 This option enables the workaround for the 773022 Cortex-A15
1246 (up to r0p4) erratum. In certain rare sequences of code, the
1247 loop buffer may deliver incorrect instructions. This
1248 workaround disables the loop buffer to avoid the erratum.
1249
1da177e4
LT
1250endmenu
1251
1252source "arch/arm/common/Kconfig"
1253
1da177e4
LT
1254menu "Bus support"
1255
1da177e4
LT
1256config ISA
1257 bool
1da177e4
LT
1258 help
1259 Find out whether you have ISA slots on your motherboard. ISA is the
1260 name of a bus system, i.e. the way the CPU talks to the other stuff
1261 inside your box. Other bus systems are PCI, EISA, MicroChannel
1262 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1263 newer boards don't support it. If you have ISA, say Y, otherwise N.
1264
065909b9 1265# Select ISA DMA controller support
1da177e4
LT
1266config ISA_DMA
1267 bool
065909b9 1268 select ISA_DMA_API
1da177e4 1269
065909b9 1270# Select ISA DMA interface
5cae841b
AV
1271config ISA_DMA_API
1272 bool
5cae841b 1273
1da177e4 1274config PCI
0b05da72 1275 bool "PCI support" if MIGHT_HAVE_PCI
1da177e4
LT
1276 help
1277 Find out whether you have a PCI motherboard. PCI is the name of a
1278 bus system, i.e. the way the CPU talks to the other stuff inside
1279 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1280 VESA. If you have PCI, say Y, otherwise N.
1281
52882173
AV
1282config PCI_DOMAINS
1283 bool
1284 depends on PCI
1285
8c7d1474
LP
1286config PCI_DOMAINS_GENERIC
1287 def_bool PCI_DOMAINS
1288
b080ac8a
MRJ
1289config PCI_NANOENGINE
1290 bool "BSE nanoEngine PCI support"
1291 depends on SA1100_NANOENGINE
1292 help
1293 Enable PCI on the BSE nanoEngine board.
1294
36e23590
MW
1295config PCI_SYSCALL
1296 def_bool PCI
1297
a0113a99
MR
1298config PCI_HOST_ITE8152
1299 bool
1300 depends on PCI && MACH_ARMCORE
1301 default y
1302 select DMABOUNCE
1303
1da177e4 1304source "drivers/pci/Kconfig"
3f06d157 1305source "drivers/pci/pcie/Kconfig"
1da177e4
LT
1306
1307source "drivers/pcmcia/Kconfig"
1308
1309endmenu
1310
1311menu "Kernel Features"
1312
3b55658a
DM
1313config HAVE_SMP
1314 bool
1315 help
1316 This option should be selected by machines which have an SMP-
1317 capable CPU.
1318
1319 The only effect of this option is to make the SMP-related
1320 options available to the user for configuration.
1321
1da177e4 1322config SMP
bb2d8130 1323 bool "Symmetric Multi-Processing"
fbb4ddac 1324 depends on CPU_V6K || CPU_V7
bc28248e 1325 depends on GENERIC_CLOCKEVENTS
3b55658a 1326 depends on HAVE_SMP
801bb21c 1327 depends on MMU || ARM_MPU
1da177e4
LT
1328 help
1329 This enables support for systems with more than one CPU. If you have
4a474157
RG
1330 a system with only one CPU, say N. If you have a system with more
1331 than one CPU, say Y.
1da177e4 1332
4a474157 1333 If you say N here, the kernel will run on uni- and multiprocessor
1da177e4 1334 machines, but will use only one CPU of a multiprocessor machine. If
4a474157
RG
1335 you say Y here, the kernel will run on many, but not all,
1336 uniprocessor machines. On a uniprocessor machine, the kernel
1337 will run faster if you say N here.
1da177e4 1338
395cf969 1339 See also <file:Documentation/x86/i386/IO-APIC.txt>,
1da177e4 1340 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
50a23e6e 1341 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
1da177e4
LT
1342
1343 If you don't know what to do here, say N.
1344
f00ec48f
RK
1345config SMP_ON_UP
1346 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
801bb21c 1347 depends on SMP && !XIP_KERNEL && MMU
f00ec48f
RK
1348 default y
1349 help
1350 SMP kernels contain instructions which fail on non-SMP processors.
1351 Enabling this option allows the kernel to modify itself to make
1352 these instructions safe. Disabling it allows about 1K of space
1353 savings.
1354
1355 If you don't know what to do here, say Y.
1356
c9018aab
VG
1357config ARM_CPU_TOPOLOGY
1358 bool "Support cpu topology definition"
1359 depends on SMP && CPU_V7
1360 default y
1361 help
1362 Support ARM cpu topology definition. The MPIDR register defines
1363 affinity between processors which is then used to describe the cpu
1364 topology of an ARM System.
1365
1366config SCHED_MC
1367 bool "Multi-core scheduler support"
1368 depends on ARM_CPU_TOPOLOGY
1369 help
1370 Multi-core scheduler support improves the CPU scheduler's decision
1371 making when dealing with multi-core CPU chips at a cost of slightly
1372 increased overhead in some places. If unsure say N here.
1373
1374config SCHED_SMT
1375 bool "SMT scheduler support"
1376 depends on ARM_CPU_TOPOLOGY
1377 help
1378 Improves the CPU scheduler's decision making when dealing with
1379 MultiThreading at a cost of slightly increased overhead in some
1380 places. If unsure say N here.
1381
a8cbcd92
RK
1382config HAVE_ARM_SCU
1383 bool
a8cbcd92
RK
1384 help
1385 This option enables support for the ARM system coherency unit
1386
8a4da6e3 1387config HAVE_ARM_ARCH_TIMER
022c03a2
MZ
1388 bool "Architected timer support"
1389 depends on CPU_V7
8a4da6e3 1390 select ARM_ARCH_TIMER
0c403462 1391 select GENERIC_CLOCKEVENTS
022c03a2
MZ
1392 help
1393 This option enables support for the ARM architected timer
1394
f32f4ce2
RK
1395config HAVE_ARM_TWD
1396 bool
1397 depends on SMP
da4a686a 1398 select CLKSRC_OF if OF
f32f4ce2
RK
1399 help
1400 This options enables support for the ARM timer and watchdog unit
1401
e8db288e
NP
1402config MCPM
1403 bool "Multi-Cluster Power Management"
1404 depends on CPU_V7 && SMP
1405 help
1406 This option provides the common power management infrastructure
1407 for (multi-)cluster based systems, such as big.LITTLE based
1408 systems.
1409
ebf4a5c5
HZ
1410config MCPM_QUAD_CLUSTER
1411 bool
1412 depends on MCPM
1413 help
1414 To avoid wasting resources unnecessarily, MCPM only supports up
1415 to 2 clusters by default.
1416 Platforms with 3 or 4 clusters that use MCPM must select this
1417 option to allow the additional clusters to be managed.
1418
1c33be57
NP
1419config BIG_LITTLE
1420 bool "big.LITTLE support (Experimental)"
1421 depends on CPU_V7 && SMP
1422 select MCPM
1423 help
1424 This option enables support selections for the big.LITTLE
1425 system architecture.
1426
1427config BL_SWITCHER
1428 bool "big.LITTLE switcher support"
1429 depends on BIG_LITTLE && MCPM && HOTPLUG_CPU
1c33be57 1430 select ARM_CPU_SUSPEND
51aaf81f 1431 select CPU_PM
1c33be57
NP
1432 help
1433 The big.LITTLE "switcher" provides the core functionality to
1434 transparently handle transition between a cluster of A15's
1435 and a cluster of A7's in a big.LITTLE system.
1436
b22537c6
NP
1437config BL_SWITCHER_DUMMY_IF
1438 tristate "Simple big.LITTLE switcher user interface"
1439 depends on BL_SWITCHER && DEBUG_KERNEL
1440 help
1441 This is a simple and dummy char dev interface to control
1442 the big.LITTLE switcher core code. It is meant for
1443 debugging purposes only.
1444
8d5796d2
LB
1445choice
1446 prompt "Memory split"
006fa259 1447 depends on MMU
8d5796d2
LB
1448 default VMSPLIT_3G
1449 help
1450 Select the desired split between kernel and user memory.
1451
1452 If you are not absolutely sure what you are doing, leave this
1453 option alone!
1454
1455 config VMSPLIT_3G
1456 bool "3G/1G user/kernel split"
1457 config VMSPLIT_2G
1458 bool "2G/2G user/kernel split"
1459 config VMSPLIT_1G
1460 bool "1G/3G user/kernel split"
1461endchoice
1462
1463config PAGE_OFFSET
1464 hex
006fa259 1465 default PHYS_OFFSET if !MMU
8d5796d2
LB
1466 default 0x40000000 if VMSPLIT_1G
1467 default 0x80000000 if VMSPLIT_2G
1468 default 0xC0000000
1469
1da177e4
LT
1470config NR_CPUS
1471 int "Maximum number of CPUs (2-32)"
1472 range 2 32
1473 depends on SMP
1474 default "4"
1475
a054a811 1476config HOTPLUG_CPU
00b7dede 1477 bool "Support for hot-pluggable CPUs"
40b31360 1478 depends on SMP
a054a811
RK
1479 help
1480 Say Y here to experiment with turning CPUs off and on. CPUs
1481 can be controlled through /sys/devices/system/cpu.
1482
2bdd424f
WD
1483config ARM_PSCI
1484 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1485 depends on CPU_V7
1486 help
1487 Say Y here if you want Linux to communicate with system firmware
1488 implementing the PSCI specification for CPU-centric power
1489 management operations described in ARM document number ARM DEN
1490 0022A ("Power State Coordination Interface System Software on
1491 ARM processors").
1492
2a6ad871
MR
1493# The GPIO number here must be sorted by descending number. In case of
1494# a multiplatform kernel, we just want the highest value required by the
1495# selected platforms.
44986ab0
PDSN
1496config ARCH_NR_GPIO
1497 int
6a4d8f36 1498 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA || ARCH_ZYNQ
aa42587a
TF
1499 default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || \
1500 SOC_DRA7XX || ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210
eb171a99 1501 default 416 if ARCH_SUNXI
06b851e5 1502 default 392 if ARCH_U8500
01bb914c 1503 default 352 if ARCH_VT8500
7b5da4c3 1504 default 288 if ARCH_ROCKCHIP
2a6ad871 1505 default 264 if MACH_H4700
44986ab0
PDSN
1506 default 0
1507 help
1508 Maximum number of GPIOs in the system.
1509
1510 If unsure, leave the default value.
1511
d45a398f 1512source kernel/Kconfig.preempt
1da177e4 1513
c9218b16 1514config HZ_FIXED
f8065813 1515 int
070b8b43 1516 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || \
a73ddc61 1517 ARCH_S5PV210 || ARCH_EXYNOS4
5248c657 1518 default AT91_TIMER_HZ if ARCH_AT91
bf98c1ea 1519 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE_LEGACY
47d84682 1520 default 0
c9218b16
RK
1521
1522choice
47d84682 1523 depends on HZ_FIXED = 0
c9218b16
RK
1524 prompt "Timer frequency"
1525
1526config HZ_100
1527 bool "100 Hz"
1528
1529config HZ_200
1530 bool "200 Hz"
1531
1532config HZ_250
1533 bool "250 Hz"
1534
1535config HZ_300
1536 bool "300 Hz"
1537
1538config HZ_500
1539 bool "500 Hz"
1540
1541config HZ_1000
1542 bool "1000 Hz"
1543
1544endchoice
1545
1546config HZ
1547 int
47d84682 1548 default HZ_FIXED if HZ_FIXED != 0
c9218b16
RK
1549 default 100 if HZ_100
1550 default 200 if HZ_200
1551 default 250 if HZ_250
1552 default 300 if HZ_300
1553 default 500 if HZ_500
1554 default 1000
1555
1556config SCHED_HRTICK
1557 def_bool HIGH_RES_TIMERS
f8065813 1558
16c79651 1559config THUMB2_KERNEL
bc7dea00 1560 bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
4477ca45 1561 depends on (CPU_V7 || CPU_V7M) && !CPU_V6 && !CPU_V6K
bc7dea00 1562 default y if CPU_THUMBONLY
16c79651
CM
1563 select AEABI
1564 select ARM_ASM_UNIFIED
89bace65 1565 select ARM_UNWIND
16c79651
CM
1566 help
1567 By enabling this option, the kernel will be compiled in
1568 Thumb-2 mode. A compiler/assembler that understand the unified
1569 ARM-Thumb syntax is needed.
1570
1571 If unsure, say N.
1572
6f685c5c
DM
1573config THUMB2_AVOID_R_ARM_THM_JUMP11
1574 bool "Work around buggy Thumb-2 short branch relocations in gas"
1575 depends on THUMB2_KERNEL && MODULES
1576 default y
1577 help
1578 Various binutils versions can resolve Thumb-2 branches to
1579 locally-defined, preemptible global symbols as short-range "b.n"
1580 branch instructions.
1581
1582 This is a problem, because there's no guarantee the final
1583 destination of the symbol, or any candidate locations for a
1584 trampoline, are within range of the branch. For this reason, the
1585 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1586 relocation in modules at all, and it makes little sense to add
1587 support.
1588
1589 The symptom is that the kernel fails with an "unsupported
1590 relocation" error when loading some modules.
1591
1592 Until fixed tools are available, passing
1593 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1594 code which hits this problem, at the cost of a bit of extra runtime
1595 stack usage in some cases.
1596
1597 The problem is described in more detail at:
1598 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1599
1600 Only Thumb-2 kernels are affected.
1601
1602 Unless you are sure your tools don't have this problem, say Y.
1603
0becb088
CM
1604config ARM_ASM_UNIFIED
1605 bool
1606
704bdda0
NP
1607config AEABI
1608 bool "Use the ARM EABI to compile the kernel"
1609 help
1610 This option allows for the kernel to be compiled using the latest
1611 ARM ABI (aka EABI). This is only useful if you are using a user
1612 space environment that is also compiled with EABI.
1613
1614 Since there are major incompatibilities between the legacy ABI and
1615 EABI, especially with regard to structure member alignment, this
1616 option also changes the kernel syscall calling convention to
1617 disambiguate both ABIs and allow for backward compatibility support
1618 (selected with CONFIG_OABI_COMPAT).
1619
1620 To use this you need GCC version 4.0.0 or later.
1621
6c90c872 1622config OABI_COMPAT
a73a3ff1 1623 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
d6f94fa0 1624 depends on AEABI && !THUMB2_KERNEL
6c90c872
NP
1625 help
1626 This option preserves the old syscall interface along with the
1627 new (ARM EABI) one. It also provides a compatibility layer to
1628 intercept syscalls that have structure arguments which layout
1629 in memory differs between the legacy ABI and the new ARM EABI
1630 (only for non "thumb" binaries). This option adds a tiny
1631 overhead to all syscalls and produces a slightly larger kernel.
91702175
KC
1632
1633 The seccomp filter system will not be available when this is
1634 selected, since there is no way yet to sensibly distinguish
1635 between calling conventions during filtering.
1636
6c90c872
NP
1637 If you know you'll be using only pure EABI user space then you
1638 can say N here. If this option is not selected and you attempt
1639 to execute a legacy ABI binary then the result will be
1640 UNPREDICTABLE (in fact it can be predicted that it won't work
b02f8467 1641 at all). If in doubt say N.
6c90c872 1642
eb33575c 1643config ARCH_HAS_HOLES_MEMORYMODEL
e80d6a24 1644 bool
e80d6a24 1645
05944d74
RK
1646config ARCH_SPARSEMEM_ENABLE
1647 bool
1648
07a2f737
RK
1649config ARCH_SPARSEMEM_DEFAULT
1650 def_bool ARCH_SPARSEMEM_ENABLE
1651
05944d74 1652config ARCH_SELECT_MEMORY_MODEL
be370302 1653 def_bool ARCH_SPARSEMEM_ENABLE
c80d79d7 1654
7b7bf499
WD
1655config HAVE_ARCH_PFN_VALID
1656 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1657
b8cd51af
SC
1658config HAVE_GENERIC_RCU_GUP
1659 def_bool y
1660 depends on ARM_LPAE
1661
053a96ca 1662config HIGHMEM
e8db89a2
RK
1663 bool "High Memory Support"
1664 depends on MMU
053a96ca
NP
1665 help
1666 The address space of ARM processors is only 4 Gigabytes large
1667 and it has to accommodate user address space, kernel address
1668 space as well as some memory mapped IO. That means that, if you
1669 have a large amount of physical memory and/or IO, not all of the
1670 memory can be "permanently mapped" by the kernel. The physical
1671 memory that is not permanently mapped is called "high memory".
1672
1673 Depending on the selected kernel/user memory split, minimum
1674 vmalloc space and actual amount of RAM, you may not need this
1675 option which should result in a slightly faster kernel.
1676
1677 If unsure, say n.
1678
65cec8e3
RK
1679config HIGHPTE
1680 bool "Allocate 2nd-level pagetables from highmem"
1681 depends on HIGHMEM
65cec8e3 1682
1b8873a0
JI
1683config HW_PERF_EVENTS
1684 bool "Enable hardware performance counter support for perf events"
f0d1bc47 1685 depends on PERF_EVENTS
1b8873a0
JI
1686 default y
1687 help
1688 Enable hardware performance counter support for perf events. If
1689 disabled, perf events will use software events only.
1690
1355e2a6
CM
1691config SYS_SUPPORTS_HUGETLBFS
1692 def_bool y
1693 depends on ARM_LPAE
1694
8d962507
CM
1695config HAVE_ARCH_TRANSPARENT_HUGEPAGE
1696 def_bool y
1697 depends on ARM_LPAE
1698
4bfab203
SC
1699config ARCH_WANT_GENERAL_HUGETLB
1700 def_bool y
1701
3f22ab27
DH
1702source "mm/Kconfig"
1703
c1b2d970 1704config FORCE_MAX_ZONEORDER
bf98c1ea
LP
1705 int "Maximum zone order" if ARCH_SHMOBILE_LEGACY
1706 range 11 64 if ARCH_SHMOBILE_LEGACY
898f08e1 1707 default "12" if SOC_AM33XX
6d85e2b0 1708 default "9" if SA1111 || ARCH_EFM32
c1b2d970
MD
1709 default "11"
1710 help
1711 The kernel memory allocator divides physically contiguous memory
1712 blocks into "zones", where each zone is a power of two number of
1713 pages. This option selects the largest power of two that the kernel
1714 keeps in the memory allocator. If you need to allocate very large
1715 blocks of physically contiguous memory, then you may need to
1716 increase this value.
1717
1718 This config option is actually maximum order plus one. For example,
1719 a value of 11 means that the largest free memory block is 2^10 pages.
1720
1da177e4
LT
1721config ALIGNMENT_TRAP
1722 bool
f12d0d7c 1723 depends on CPU_CP15_MMU
1da177e4 1724 default y if !ARCH_EBSA110
e119bfff 1725 select HAVE_PROC_CPU if PROC_FS
1da177e4 1726 help
84eb8d06 1727 ARM processors cannot fetch/store information which is not
1da177e4
LT
1728 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1729 address divisible by 4. On 32-bit ARM processors, these non-aligned
1730 fetch/store instructions will be emulated in software if you say
1731 here, which has a severe performance impact. This is necessary for
1732 correct operation of some network protocols. With an IP-only
1733 configuration it is safe to say N, otherwise say Y.
1734
39ec58f3 1735config UACCESS_WITH_MEMCPY
38ef2ad5
LW
1736 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1737 depends on MMU
39ec58f3
LB
1738 default y if CPU_FEROCEON
1739 help
1740 Implement faster copy_to_user and clear_user methods for CPU
1741 cores where a 8-word STM instruction give significantly higher
1742 memory write throughput than a sequence of individual 32bit stores.
1743
1744 A possible side effect is a slight increase in scheduling latency
1745 between threads sharing the same address space if they invoke
1746 such copy operations with large buffers.
1747
1748 However, if the CPU data cache is using a write-allocate mode,
1749 this option is unlikely to provide any performance gain.
1750
70c70d97
NP
1751config SECCOMP
1752 bool
1753 prompt "Enable seccomp to safely compute untrusted bytecode"
1754 ---help---
1755 This kernel feature is useful for number crunching applications
1756 that may need to compute untrusted bytecode during their
1757 execution. By using pipes or other transports made available to
1758 the process as file descriptors supporting the read/write
1759 syscalls, it's possible to isolate those applications in
1760 their own address space using seccomp. Once seccomp is
1761 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1762 and the task is only allowed to execute a few safe syscalls
1763 defined by each seccomp mode.
1764
06e6295b
SS
1765config SWIOTLB
1766 def_bool y
1767
1768config IOMMU_HELPER
1769 def_bool SWIOTLB
1770
eff8d644
SS
1771config XEN_DOM0
1772 def_bool y
1773 depends on XEN
1774
1775config XEN
c2ba1f7d 1776 bool "Xen guest support on ARM"
85323a99 1777 depends on ARM && AEABI && OF
f880b67d 1778 depends on CPU_V7 && !CPU_V6
85323a99 1779 depends on !GENERIC_ATOMIC64
7693decc 1780 depends on MMU
51aaf81f 1781 select ARCH_DMA_ADDR_T_64BIT
17b7ab80 1782 select ARM_PSCI
83862ccf 1783 select SWIOTLB_XEN
eff8d644
SS
1784 help
1785 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1786
1da177e4
LT
1787endmenu
1788
1789menu "Boot options"
1790
9eb8f674
GL
1791config USE_OF
1792 bool "Flattened Device Tree support"
b1b3f49c 1793 select IRQ_DOMAIN
9eb8f674
GL
1794 select OF
1795 select OF_EARLY_FLATTREE
bcedb5f9 1796 select OF_RESERVED_MEM
9eb8f674
GL
1797 help
1798 Include support for flattened device tree machine descriptions.
1799
bd51e2f5
NP
1800config ATAGS
1801 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1802 default y
1803 help
1804 This is the traditional way of passing data to the kernel at boot
1805 time. If you are solely relying on the flattened device tree (or
1806 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1807 to remove ATAGS support from your kernel binary. If unsure,
1808 leave this to y.
1809
1810config DEPRECATED_PARAM_STRUCT
1811 bool "Provide old way to pass kernel parameters"
1812 depends on ATAGS
1813 help
1814 This was deprecated in 2001 and announced to live on for 5 years.
1815 Some old boot loaders still use this way.
1816
1da177e4
LT
1817# Compressed boot loader in ROM. Yes, we really want to ask about
1818# TEXT and BSS so we preserve their values in the config files.
1819config ZBOOT_ROM_TEXT
1820 hex "Compressed ROM boot loader base address"
1821 default "0"
1822 help
1823 The physical address at which the ROM-able zImage is to be
1824 placed in the target. Platforms which normally make use of
1825 ROM-able zImage formats normally set this to a suitable
1826 value in their defconfig file.
1827
1828 If ZBOOT_ROM is not enabled, this has no effect.
1829
1830config ZBOOT_ROM_BSS
1831 hex "Compressed ROM boot loader BSS address"
1832 default "0"
1833 help
f8c440b2
DF
1834 The base address of an area of read/write memory in the target
1835 for the ROM-able zImage which must be available while the
1836 decompressor is running. It must be large enough to hold the
1837 entire decompressed kernel plus an additional 128 KiB.
1838 Platforms which normally make use of ROM-able zImage formats
1839 normally set this to a suitable value in their defconfig file.
1da177e4
LT
1840
1841 If ZBOOT_ROM is not enabled, this has no effect.
1842
1843config ZBOOT_ROM
1844 bool "Compressed boot loader in ROM/flash"
1845 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
10968131 1846 depends on !ARM_APPENDED_DTB && !XIP_KERNEL && !AUTO_ZRELADDR
1da177e4
LT
1847 help
1848 Say Y here if you intend to execute your compressed kernel image
1849 (zImage) directly from ROM or flash. If unsure, say N.
1850
090ab3ff
SH
1851choice
1852 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
d6f94fa0 1853 depends on ZBOOT_ROM && ARCH_SH7372
090ab3ff
SH
1854 default ZBOOT_ROM_NONE
1855 help
1856 Include experimental SD/MMC loading code in the ROM-able zImage.
59bf8964 1857 With this enabled it is possible to write the ROM-able zImage
090ab3ff
SH
1858 kernel image to an MMC or SD card and boot the kernel straight
1859 from the reset vector. At reset the processor Mask ROM will load
59bf8964 1860 the first part of the ROM-able zImage which in turn loads the
090ab3ff
SH
1861 rest the kernel image to RAM.
1862
1863config ZBOOT_ROM_NONE
1864 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1865 help
1866 Do not load image from SD or MMC
1867
f45b1149
SH
1868config ZBOOT_ROM_MMCIF
1869 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
f45b1149 1870 help
090ab3ff
SH
1871 Load image from MMCIF hardware block.
1872
1873config ZBOOT_ROM_SH_MOBILE_SDHI
1874 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1875 help
1876 Load image from SDHI hardware block
1877
1878endchoice
f45b1149 1879
e2a6a3aa
JB
1880config ARM_APPENDED_DTB
1881 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
10968131 1882 depends on OF
e2a6a3aa
JB
1883 help
1884 With this option, the boot code will look for a device tree binary
1885 (DTB) appended to zImage
1886 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1887
1888 This is meant as a backward compatibility convenience for those
1889 systems with a bootloader that can't be upgraded to accommodate
1890 the documented boot protocol using a device tree.
1891
1892 Beware that there is very little in terms of protection against
1893 this option being confused by leftover garbage in memory that might
1894 look like a DTB header after a reboot if no actual DTB is appended
1895 to zImage. Do not leave this option active in a production kernel
1896 if you don't intend to always append a DTB. Proper passing of the
1897 location into r2 of a bootloader provided DTB is always preferable
1898 to this option.
1899
b90b9a38
NP
1900config ARM_ATAG_DTB_COMPAT
1901 bool "Supplement the appended DTB with traditional ATAG information"
1902 depends on ARM_APPENDED_DTB
1903 help
1904 Some old bootloaders can't be updated to a DTB capable one, yet
1905 they provide ATAGs with memory configuration, the ramdisk address,
1906 the kernel cmdline string, etc. Such information is dynamically
1907 provided by the bootloader and can't always be stored in a static
1908 DTB. To allow a device tree enabled kernel to be used with such
1909 bootloaders, this option allows zImage to extract the information
1910 from the ATAG list and store it at run time into the appended DTB.
1911
d0f34a11
GR
1912choice
1913 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
1914 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1915
1916config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1917 bool "Use bootloader kernel arguments if available"
1918 help
1919 Uses the command-line options passed by the boot loader instead of
1920 the device tree bootargs property. If the boot loader doesn't provide
1921 any, the device tree bootargs property will be used.
1922
1923config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
1924 bool "Extend with bootloader kernel arguments"
1925 help
1926 The command-line arguments provided by the boot loader will be
1927 appended to the the device tree bootargs property.
1928
1929endchoice
1930
1da177e4
LT
1931config CMDLINE
1932 string "Default kernel command string"
1933 default ""
1934 help
1935 On some architectures (EBSA110 and CATS), there is currently no way
1936 for the boot loader to pass arguments to the kernel. For these
1937 architectures, you should supply some command-line options at build
1938 time by entering them here. As a minimum, you should specify the
1939 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1940
4394c124
VB
1941choice
1942 prompt "Kernel command line type" if CMDLINE != ""
1943 default CMDLINE_FROM_BOOTLOADER
bd51e2f5 1944 depends on ATAGS
4394c124
VB
1945
1946config CMDLINE_FROM_BOOTLOADER
1947 bool "Use bootloader kernel arguments if available"
1948 help
1949 Uses the command-line options passed by the boot loader. If
1950 the boot loader doesn't provide any, the default kernel command
1951 string provided in CMDLINE will be used.
1952
1953config CMDLINE_EXTEND
1954 bool "Extend bootloader kernel arguments"
1955 help
1956 The command-line arguments provided by the boot loader will be
1957 appended to the default kernel command string.
1958
92d2040d
AH
1959config CMDLINE_FORCE
1960 bool "Always use the default kernel command string"
92d2040d
AH
1961 help
1962 Always use the default kernel command string, even if the boot
1963 loader passes other arguments to the kernel.
1964 This is useful if you cannot or don't want to change the
1965 command-line options your boot loader passes to the kernel.
4394c124 1966endchoice
92d2040d 1967
1da177e4
LT
1968config XIP_KERNEL
1969 bool "Kernel Execute-In-Place from ROM"
10968131 1970 depends on !ARM_LPAE && !ARCH_MULTIPLATFORM
1da177e4
LT
1971 help
1972 Execute-In-Place allows the kernel to run from non-volatile storage
1973 directly addressable by the CPU, such as NOR flash. This saves RAM
1974 space since the text section of the kernel is not loaded from flash
1975 to RAM. Read-write sections, such as the data section and stack,
1976 are still copied to RAM. The XIP kernel is not compressed since
1977 it has to run directly from flash, so it will take more space to
1978 store it. The flash address used to link the kernel object files,
1979 and for storing it, is configuration dependent. Therefore, if you
1980 say Y here, you must know the proper physical address where to
1981 store the kernel image depending on your own flash memory usage.
1982
1983 Also note that the make target becomes "make xipImage" rather than
1984 "make zImage" or "make Image". The final kernel binary to put in
1985 ROM memory will be arch/arm/boot/xipImage.
1986
1987 If unsure, say N.
1988
1989config XIP_PHYS_ADDR
1990 hex "XIP Kernel Physical Location"
1991 depends on XIP_KERNEL
1992 default "0x00080000"
1993 help
1994 This is the physical address in your flash memory the kernel will
1995 be linked for and stored to. This address is dependent on your
1996 own flash usage.
1997
c587e4a6
RP
1998config KEXEC
1999 bool "Kexec system call (EXPERIMENTAL)"
19ab428f 2000 depends on (!SMP || PM_SLEEP_SMP)
c587e4a6
RP
2001 help
2002 kexec is a system call that implements the ability to shutdown your
2003 current kernel, and to start another kernel. It is like a reboot
01dd2fbf 2004 but it is independent of the system firmware. And like a reboot
c587e4a6
RP
2005 you can start any kernel with it, not just Linux.
2006
2007 It is an ongoing process to be certain the hardware in a machine
2008 is properly shutdown, so do not be surprised if this code does not
bf220695 2009 initially work for you.
c587e4a6 2010
4cd9d6f7
RP
2011config ATAGS_PROC
2012 bool "Export atags in procfs"
bd51e2f5 2013 depends on ATAGS && KEXEC
b98d7291 2014 default y
4cd9d6f7
RP
2015 help
2016 Should the atags used to boot the kernel be exported in an "atags"
2017 file in procfs. Useful with kexec.
2018
cb5d39b3
MW
2019config CRASH_DUMP
2020 bool "Build kdump crash kernel (EXPERIMENTAL)"
cb5d39b3
MW
2021 help
2022 Generate crash dump after being started by kexec. This should
2023 be normally only set in special crash dump kernels which are
2024 loaded in the main kernel with kexec-tools into a specially
2025 reserved region and then later executed after a crash by
2026 kdump/kexec. The crash dump kernel must be compiled to a
2027 memory address not used by the main kernel
2028
2029 For more details see Documentation/kdump/kdump.txt
2030
e69edc79
EM
2031config AUTO_ZRELADDR
2032 bool "Auto calculation of the decompressed kernel image address"
e69edc79
EM
2033 help
2034 ZRELADDR is the physical address where the decompressed kernel
2035 image will be placed. If AUTO_ZRELADDR is selected, the address
2036 will be determined at run-time by masking the current IP with
2037 0xf8000000. This assumes the zImage being placed in the first 128MB
2038 from start of memory.
2039
1da177e4
LT
2040endmenu
2041
ac9d7efc 2042menu "CPU Power Management"
1da177e4 2043
1da177e4 2044source "drivers/cpufreq/Kconfig"
1da177e4 2045
ac9d7efc
RK
2046source "drivers/cpuidle/Kconfig"
2047
2048endmenu
2049
1da177e4
LT
2050menu "Floating point emulation"
2051
2052comment "At least one emulation must be selected"
2053
2054config FPE_NWFPE
2055 bool "NWFPE math emulation"
593c252a 2056 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
1da177e4
LT
2057 ---help---
2058 Say Y to include the NWFPE floating point emulator in the kernel.
2059 This is necessary to run most binaries. Linux does not currently
2060 support floating point hardware so you need to say Y here even if
2061 your machine has an FPA or floating point co-processor podule.
2062
2063 You may say N here if you are going to load the Acorn FPEmulator
2064 early in the bootup.
2065
2066config FPE_NWFPE_XP
2067 bool "Support extended precision"
bedf142b 2068 depends on FPE_NWFPE
1da177e4
LT
2069 help
2070 Say Y to include 80-bit support in the kernel floating-point
2071 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2072 Note that gcc does not generate 80-bit operations by default,
2073 so in most cases this option only enlarges the size of the
2074 floating point emulator without any good reason.
2075
2076 You almost surely want to say N here.
2077
2078config FPE_FASTFPE
2079 bool "FastFPE math emulation (EXPERIMENTAL)"
d6f94fa0 2080 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
1da177e4
LT
2081 ---help---
2082 Say Y here to include the FAST floating point emulator in the kernel.
2083 This is an experimental much faster emulator which now also has full
2084 precision for the mantissa. It does not support any exceptions.
2085 It is very simple, and approximately 3-6 times faster than NWFPE.
2086
2087 It should be sufficient for most programs. It may be not suitable
2088 for scientific calculations, but you have to check this for yourself.
2089 If you do not feel you need a faster FP emulation you should better
2090 choose NWFPE.
2091
2092config VFP
2093 bool "VFP-format floating point maths"
e399b1a4 2094 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
1da177e4
LT
2095 help
2096 Say Y to include VFP support code in the kernel. This is needed
2097 if your hardware includes a VFP unit.
2098
2099 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2100 release notes and additional status information.
2101
2102 Say N if your target does not have VFP hardware.
2103
25ebee02
CM
2104config VFPv3
2105 bool
2106 depends on VFP
2107 default y if CPU_V7
2108
b5872db4
CM
2109config NEON
2110 bool "Advanced SIMD (NEON) Extension support"
2111 depends on VFPv3 && CPU_V7
2112 help
2113 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2114 Extension.
2115
73c132c1
AB
2116config KERNEL_MODE_NEON
2117 bool "Support for NEON in kernel mode"
c4a30c3b 2118 depends on NEON && AEABI
73c132c1
AB
2119 help
2120 Say Y to include support for NEON in kernel mode.
2121
1da177e4
LT
2122endmenu
2123
2124menu "Userspace binary formats"
2125
2126source "fs/Kconfig.binfmt"
2127
2128config ARTHUR
2129 tristate "RISC OS personality"
704bdda0 2130 depends on !AEABI
1da177e4
LT
2131 help
2132 Say Y here to include the kernel code necessary if you want to run
2133 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2134 experimental; if this sounds frightening, say N and sleep in peace.
2135 You can also say M here to compile this support as a module (which
2136 will be called arthur).
2137
2138endmenu
2139
2140menu "Power management options"
2141
eceab4ac 2142source "kernel/power/Kconfig"
1da177e4 2143
f4cb5700 2144config ARCH_SUSPEND_POSSIBLE
19a0519d 2145 depends on CPU_ARM920T || CPU_ARM926T || CPU_FEROCEON || CPU_SA1100 || \
f0d75153 2146 CPU_V6 || CPU_V6K || CPU_V7 || CPU_V7M || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
f4cb5700
JB
2147 def_bool y
2148
15e0d9e3
AB
2149config ARM_CPU_SUSPEND
2150 def_bool PM_SLEEP
2151
603fb42a
SC
2152config ARCH_HIBERNATION_POSSIBLE
2153 bool
2154 depends on MMU
2155 default y if ARCH_SUSPEND_POSSIBLE
2156
1da177e4
LT
2157endmenu
2158
d5950b43
SR
2159source "net/Kconfig"
2160
ac25150f 2161source "drivers/Kconfig"
1da177e4
LT
2162
2163source "fs/Kconfig"
2164
1da177e4
LT
2165source "arch/arm/Kconfig.debug"
2166
2167source "security/Kconfig"
2168
2169source "crypto/Kconfig"
2170
2171source "lib/Kconfig"
749cf76c
CD
2172
2173source "arch/arm/kvm/Kconfig"