ARM: zx: fix building with CONFIG_THUMB2_KERNEL
[deliverable/linux.git] / arch / arm / Kconfig
CommitLineData
1da177e4
LT
1config ARM
2 bool
3 default y
b1b3f49c 4 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
2b68f6ca 5 select ARCH_HAS_ELF_RANDOMIZE
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
7c07005e 24 select GENERIC_IRQ_SHOW_LEVEL
b1b3f49c 25 select GENERIC_PCI_IOMAP
38ff87f7 26 select GENERIC_SCHED_CLOCK
b1b3f49c
RK
27 select GENERIC_SMP_IDLE_THREAD
28 select GENERIC_STRNCPY_FROM_USER
29 select GENERIC_STRNLEN_USER
a71b092a 30 select HANDLE_DOMAIN_IRQ
b1b3f49c 31 select HARDIRQS_SW_RESEND
7a017721 32 select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
0b7857db 33 select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6
09f05d85 34 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
5cbad0eb 35 select HAVE_ARCH_KGDB
91702175 36 select HAVE_ARCH_SECCOMP_FILTER if (AEABI && !OABI_COMPAT)
0693bf68 37 select HAVE_ARCH_TRACEHOOK
b1b3f49c 38 select HAVE_BPF_JIT
51aaf81f 39 select HAVE_CC_STACKPROTECTOR
171b3f0d 40 select HAVE_CONTEXT_TRACKING
b1b3f49c
RK
41 select HAVE_C_RECORDMCOUNT
42 select HAVE_DEBUG_KMEMLEAK
43 select HAVE_DMA_API_DEBUG
44 select HAVE_DMA_ATTRS
45 select HAVE_DMA_CONTIGUOUS if MMU
80be7a7f 46 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
dce5c9e3 47 select HAVE_EFFICIENT_UNALIGNED_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && MMU
b1b3f49c 48 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
0e341af8 49 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
b1b3f49c 50 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
1fe53268 51 select HAVE_GENERIC_DMA_COHERENT
b1b3f49c
RK
52 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
53 select HAVE_IDE if PCI || ISA || PCMCIA
87c46b6c 54 select HAVE_IRQ_TIME_ACCOUNTING
e7db7b42 55 select HAVE_KERNEL_GZIP
f9b493ac 56 select HAVE_KERNEL_LZ4
6e8699f7 57 select HAVE_KERNEL_LZMA
b1b3f49c 58 select HAVE_KERNEL_LZO
a7f464f3 59 select HAVE_KERNEL_XZ
b1b3f49c
RK
60 select HAVE_KPROBES if !XIP_KERNEL
61 select HAVE_KRETPROBES if (HAVE_KPROBES)
62 select HAVE_MEMBLOCK
171b3f0d 63 select HAVE_MOD_ARCH_SPECIFIC if ARM_UNWIND
b1b3f49c 64 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
0dc016db 65 select HAVE_OPTPROBES if !THUMB2_KERNEL
7ada189f 66 select HAVE_PERF_EVENTS
49863894
WD
67 select HAVE_PERF_REGS
68 select HAVE_PERF_USER_STACK_DUMP
a0ad5496 69 select HAVE_RCU_TABLE_FREE if (SMP && ARM_LPAE)
e513f8bf 70 select HAVE_REGS_AND_STACK_ACCESS_API
b1b3f49c 71 select HAVE_SYSCALL_TRACEPOINTS
af1839eb 72 select HAVE_UID16
31c1fc81 73 select HAVE_VIRT_CPU_ACCOUNTING_GEN
da0ec6f7 74 select IRQ_FORCED_THREADING
171b3f0d 75 select MODULES_USE_ELF_REL
84f452b1 76 select NO_BOOTMEM
171b3f0d
RK
77 select OLD_SIGACTION
78 select OLD_SIGSUSPEND3
b1b3f49c
RK
79 select PERF_USE_VMALLOC
80 select RTC_LIB
81 select SYS_SUPPORTS_APM_EMULATION
171b3f0d
RK
82 # Above selects are sorted alphabetically; please add new ones
83 # according to that. Thanks.
1da177e4
LT
84 help
85 The ARM series is a line of low-power-consumption RISC chip designs
f6c8965a 86 licensed by ARM Ltd and targeted at embedded applications and
1da177e4 87 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
f6c8965a 88 manufactured, but legacy ARM-based PC hardware remains popular in
1da177e4
LT
89 Europe. There is an ARM Linux project with a web page at
90 <http://www.arm.linux.org.uk/>.
91
74facffe 92config ARM_HAS_SG_CHAIN
308c09f1 93 select ARCH_HAS_SG_CHAIN
74facffe
RK
94 bool
95
4ce63fcd
MS
96config NEED_SG_DMA_LENGTH
97 bool
98
99config ARM_DMA_USE_IOMMU
4ce63fcd 100 bool
b1b3f49c
RK
101 select ARM_HAS_SG_CHAIN
102 select NEED_SG_DMA_LENGTH
4ce63fcd 103
60460abf
SWK
104if ARM_DMA_USE_IOMMU
105
106config ARM_DMA_IOMMU_ALIGNMENT
107 int "Maximum PAGE_SIZE order of alignment for DMA IOMMU buffers"
108 range 4 9
109 default 8
110 help
111 DMA mapping framework by default aligns all buffers to the smallest
112 PAGE_SIZE order which is greater than or equal to the requested buffer
113 size. This works well for buffers up to a few hundreds kilobytes, but
114 for larger buffers it just a waste of address space. Drivers which has
115 relatively small addressing window (like 64Mib) might run out of
116 virtual space with just a few allocations.
117
118 With this parameter you can specify the maximum PAGE_SIZE order for
119 DMA IOMMU buffers. Larger buffers will be aligned only to this
120 specified order. The order is expressed as a power of two multiplied
121 by the PAGE_SIZE.
122
123endif
124
0b05da72
HUK
125config MIGHT_HAVE_PCI
126 bool
127
75e7153a
RB
128config SYS_SUPPORTS_APM_EMULATION
129 bool
130
bc581770
LW
131config HAVE_TCM
132 bool
133 select GENERIC_ALLOCATOR
134
e119bfff
RK
135config HAVE_PROC_CPU
136 bool
137
ce816fa8 138config NO_IOPORT_MAP
5ea81769 139 bool
5ea81769 140
1da177e4
LT
141config EISA
142 bool
143 ---help---
144 The Extended Industry Standard Architecture (EISA) bus was
145 developed as an open alternative to the IBM MicroChannel bus.
146
147 The EISA bus provided some of the features of the IBM MicroChannel
148 bus while maintaining backward compatibility with cards made for
149 the older ISA bus. The EISA bus saw limited use between 1988 and
150 1995 when it was made obsolete by the PCI bus.
151
152 Say Y here if you are building a kernel for an EISA-based machine.
153
154 Otherwise, say N.
155
156config SBUS
157 bool
158
f16fb1ec
RK
159config STACKTRACE_SUPPORT
160 bool
161 default y
162
f76e9154
NP
163config HAVE_LATENCYTOP_SUPPORT
164 bool
165 depends on !SMP
166 default y
167
f16fb1ec
RK
168config LOCKDEP_SUPPORT
169 bool
170 default y
171
7ad1bcb2
RK
172config TRACE_IRQFLAGS_SUPPORT
173 bool
174 default y
175
1da177e4
LT
176config RWSEM_XCHGADD_ALGORITHM
177 bool
8a87411b 178 default y
1da177e4 179
f0d1b0b3
DH
180config ARCH_HAS_ILOG2_U32
181 bool
f0d1b0b3
DH
182
183config ARCH_HAS_ILOG2_U64
184 bool
f0d1b0b3 185
4a1b5733
EV
186config ARCH_HAS_BANDGAP
187 bool
188
b89c3b16
AM
189config GENERIC_HWEIGHT
190 bool
191 default y
192
1da177e4
LT
193config GENERIC_CALIBRATE_DELAY
194 bool
195 default y
196
a08b6b79
Z
197config ARCH_MAY_HAVE_PC_FDC
198 bool
199
5ac6da66
CL
200config ZONE_DMA
201 bool
5ac6da66 202
ccd7ab7f
FT
203config NEED_DMA_MAP_STATE
204 def_bool y
205
c7edc9e3
DL
206config ARCH_SUPPORTS_UPROBES
207 def_bool y
208
58af4a24
RH
209config ARCH_HAS_DMA_SET_COHERENT_MASK
210 bool
211
1da177e4
LT
212config GENERIC_ISA_DMA
213 bool
214
1da177e4
LT
215config FIQ
216 bool
217
13a5045d
RH
218config NEED_RET_TO_USER
219 bool
220
034d2f5a
AV
221config ARCH_MTD_XIP
222 bool
223
c760fc19
HC
224config VECTORS_BASE
225 hex
6afd6fae 226 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
c760fc19
HC
227 default DRAM_BASE if REMAP_VECTORS_TO_RAM
228 default 0x00000000
229 help
19accfd3
RK
230 The base address of exception vectors. This must be two pages
231 in size.
c760fc19 232
dc21af99 233config ARM_PATCH_PHYS_VIRT
c1becedc
RK
234 bool "Patch physical to virtual translations at runtime" if EMBEDDED
235 default y
b511d75d 236 depends on !XIP_KERNEL && MMU
dc21af99
RK
237 depends on !ARCH_REALVIEW || !SPARSEMEM
238 help
111e9a5c
RK
239 Patch phys-to-virt and virt-to-phys translation functions at
240 boot and module load time according to the position of the
241 kernel in system memory.
dc21af99 242
111e9a5c 243 This can only be used with non-XIP MMU kernels where the base
daece596 244 of physical memory is at a 16MB boundary.
dc21af99 245
c1becedc
RK
246 Only disable this option if you know that you do not require
247 this feature (eg, building a kernel for a single machine) and
248 you need to shrink the kernel to the minimal size.
dc21af99 249
c334bc15
RH
250config NEED_MACH_IO_H
251 bool
252 help
253 Select this when mach/io.h is required to provide special
254 definitions for this platform. The need for mach/io.h should
255 be avoided when possible.
256
0cdc8b92 257config NEED_MACH_MEMORY_H
1b9f95f8
NP
258 bool
259 help
0cdc8b92
NP
260 Select this when mach/memory.h is required to provide special
261 definitions for this platform. The need for mach/memory.h should
262 be avoided when possible.
dc21af99 263
1b9f95f8 264config PHYS_OFFSET
974c0724 265 hex "Physical address of main memory" if MMU
c6f54a9b 266 depends on !ARM_PATCH_PHYS_VIRT
974c0724 267 default DRAM_BASE if !MMU
c6f54a9b
UKK
268 default 0x00000000 if ARCH_EBSA110 || \
269 EP93XX_SDCE3_SYNC_PHYS_OFFSET || \
270 ARCH_FOOTBRIDGE || \
271 ARCH_INTEGRATOR || \
272 ARCH_IOP13XX || \
273 ARCH_KS8695 || \
274 (ARCH_REALVIEW && !REALVIEW_HIGH_PHYS_OFFSET)
275 default 0x10000000 if ARCH_OMAP1 || ARCH_RPC
276 default 0x20000000 if ARCH_S5PV210
277 default 0x70000000 if REALVIEW_HIGH_PHYS_OFFSET
278 default 0xc0000000 if EP93XX_SDCE0_PHYS_OFFSET || ARCH_SA1100
279 default 0xd0000000 if EP93XX_SDCE1_PHYS_OFFSET
280 default 0xe0000000 if EP93XX_SDCE2_PHYS_OFFSET
281 default 0xf0000000 if EP93XX_SDCE3_ASYNC_PHYS_OFFSET
111e9a5c 282 help
1b9f95f8
NP
283 Please provide the physical address corresponding to the
284 location of main memory in your system.
cada3c08 285
87e040b6
SG
286config GENERIC_BUG
287 def_bool y
288 depends on BUG
289
1bcad26e
KS
290config PGTABLE_LEVELS
291 int
292 default 3 if ARM_LPAE
293 default 2
294
1da177e4
LT
295source "init/Kconfig"
296
dc52ddc0
MH
297source "kernel/Kconfig.freezer"
298
1da177e4
LT
299menu "System Type"
300
3c427975
HC
301config MMU
302 bool "MMU-based Paged Memory Management Support"
303 default y
304 help
305 Select if you want MMU-based virtualised addressing space
306 support by paged memory management. If unsure, say 'Y'.
307
ccf50e23
RK
308#
309# The "ARM system type" choice list is ordered alphabetically by option
310# text. Please add new entries in the option alphabetic order.
311#
1da177e4
LT
312choice
313 prompt "ARM system type"
1420b22b
AB
314 default ARCH_VERSATILE if !MMU
315 default ARCH_MULTIPLATFORM if MMU
1da177e4 316
387798b3
RH
317config ARCH_MULTIPLATFORM
318 bool "Allow multiple platforms to be selected"
b1b3f49c 319 depends on MMU
ddb902cc 320 select ARCH_WANT_OPTIONAL_GPIOLIB
42dc836d 321 select ARM_HAS_SG_CHAIN
387798b3
RH
322 select ARM_PATCH_PHYS_VIRT
323 select AUTO_ZRELADDR
6d0add40 324 select CLKSRC_OF
66314223 325 select COMMON_CLK
ddb902cc 326 select GENERIC_CLOCKEVENTS
08d38beb 327 select MIGHT_HAVE_PCI
387798b3 328 select MULTI_IRQ_HANDLER
66314223
DN
329 select SPARSE_IRQ
330 select USE_OF
66314223 331
9c77bc43
SA
332config ARM_SINGLE_ARMV7M
333 bool "ARMv7-M based platforms (Cortex-M0/M3/M4)"
334 depends on !MMU
335 select ARCH_WANT_OPTIONAL_GPIOLIB
336 select ARM_NVIC
337 select CLKSRC_OF
338 select COMMON_CLK
339 select CPU_V7M
340 select GENERIC_CLOCKEVENTS
341 select NO_IOPORT_MAP
342 select SPARSE_IRQ
343 select USE_OF
344
4af6fee1
DS
345config ARCH_REALVIEW
346 bool "ARM Ltd. RealView family"
b1b3f49c 347 select ARCH_WANT_OPTIONAL_GPIOLIB
4af6fee1 348 select ARM_AMBA
b1b3f49c 349 select ARM_TIMER_SP804
f9a6aa43
LW
350 select COMMON_CLK
351 select COMMON_CLK_VERSATILE
ae30ceac 352 select GENERIC_CLOCKEVENTS
b56ba8aa 353 select GPIO_PL061 if GPIOLIB
b1b3f49c 354 select ICST
0cdc8b92 355 select NEED_MACH_MEMORY_H
b1b3f49c 356 select PLAT_VERSATILE
81cc3f86 357 select PLAT_VERSATILE_SCHED_CLOCK
4af6fee1
DS
358 help
359 This enables support for ARM Ltd RealView boards.
360
361config ARCH_VERSATILE
362 bool "ARM Ltd. Versatile family"
b1b3f49c 363 select ARCH_WANT_OPTIONAL_GPIOLIB
4af6fee1 364 select ARM_AMBA
b1b3f49c 365 select ARM_TIMER_SP804
4af6fee1 366 select ARM_VIC
6d803ba7 367 select CLKDEV_LOOKUP
b1b3f49c 368 select GENERIC_CLOCKEVENTS
aa3831cf 369 select HAVE_MACH_CLKDEV
c5a0adb5 370 select ICST
f4b8b319 371 select PLAT_VERSATILE
b1b3f49c 372 select PLAT_VERSATILE_CLOCK
81cc3f86 373 select PLAT_VERSATILE_SCHED_CLOCK
2389d501 374 select VERSATILE_FPGA_IRQ
4af6fee1
DS
375 help
376 This enables support for ARM Ltd Versatile board.
377
93e22567
RK
378config ARCH_CLPS711X
379 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
a3b8d4a5 380 select ARCH_REQUIRE_GPIOLIB
ea7d1bc9 381 select AUTO_ZRELADDR
c99f72ad 382 select CLKSRC_MMIO
93e22567
RK
383 select COMMON_CLK
384 select CPU_ARM720T
4a8355c4 385 select GENERIC_CLOCKEVENTS
6597619f 386 select MFD_SYSCON
e4e3a37d 387 select SOC_BUS
93e22567
RK
388 help
389 Support for Cirrus Logic 711x/721x/731x based boards.
390
788c9700
RK
391config ARCH_GEMINI
392 bool "Cortina Systems Gemini"
788c9700 393 select ARCH_REQUIRE_GPIOLIB
f3372c01 394 select CLKSRC_MMIO
b1b3f49c 395 select CPU_FA526
f3372c01 396 select GENERIC_CLOCKEVENTS
788c9700
RK
397 help
398 Support for the Cortina Systems Gemini family SoCs
399
1da177e4
LT
400config ARCH_EBSA110
401 bool "EBSA-110"
b1b3f49c 402 select ARCH_USES_GETTIMEOFFSET
c750815e 403 select CPU_SA110
f7e68bbf 404 select ISA
c334bc15 405 select NEED_MACH_IO_H
0cdc8b92 406 select NEED_MACH_MEMORY_H
ce816fa8 407 select NO_IOPORT_MAP
1da177e4
LT
408 help
409 This is an evaluation board for the StrongARM processor available
f6c8965a 410 from Digital. It has limited hardware on-board, including an
1da177e4
LT
411 Ethernet interface, two PCMCIA sockets, two serial ports and a
412 parallel port.
413
6d85e2b0
UKK
414config ARCH_EFM32
415 bool "Energy Micro efm32"
416 depends on !MMU
417 select ARCH_REQUIRE_GPIOLIB
418 select ARM_NVIC
51aaf81f 419 select AUTO_ZRELADDR
6d85e2b0
UKK
420 select CLKSRC_OF
421 select COMMON_CLK
422 select CPU_V7M
423 select GENERIC_CLOCKEVENTS
424 select NO_DMA
ce816fa8 425 select NO_IOPORT_MAP
6d85e2b0
UKK
426 select SPARSE_IRQ
427 select USE_OF
428 help
429 Support for Energy Micro's (now Silicon Labs) efm32 Giant Gecko
430 processors.
431
e7736d47
LB
432config ARCH_EP93XX
433 bool "EP93xx-based"
b1b3f49c
RK
434 select ARCH_HAS_HOLES_MEMORYMODEL
435 select ARCH_REQUIRE_GPIOLIB
436 select ARCH_USES_GETTIMEOFFSET
e7736d47
LB
437 select ARM_AMBA
438 select ARM_VIC
6d803ba7 439 select CLKDEV_LOOKUP
b1b3f49c 440 select CPU_ARM920T
e7736d47
LB
441 help
442 This enables support for the Cirrus EP93xx series of CPUs.
443
1da177e4
LT
444config ARCH_FOOTBRIDGE
445 bool "FootBridge"
c750815e 446 select CPU_SA110
1da177e4 447 select FOOTBRIDGE
4e8d7637 448 select GENERIC_CLOCKEVENTS
d0ee9f40 449 select HAVE_IDE
8ef6e620 450 select NEED_MACH_IO_H if !MMU
0cdc8b92 451 select NEED_MACH_MEMORY_H
f999b8bd
MM
452 help
453 Support for systems based on the DC21285 companion chip
454 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
1da177e4 455
4af6fee1
DS
456config ARCH_NETX
457 bool "Hilscher NetX based"
b1b3f49c 458 select ARM_VIC
234b6ced 459 select CLKSRC_MMIO
c750815e 460 select CPU_ARM926T
2fcfe6b8 461 select GENERIC_CLOCKEVENTS
f999b8bd 462 help
4af6fee1
DS
463 This enables support for systems based on the Hilscher NetX Soc
464
3b938be6
RK
465config ARCH_IOP13XX
466 bool "IOP13xx-based"
467 depends on MMU
b1b3f49c 468 select CPU_XSC3
0cdc8b92 469 select NEED_MACH_MEMORY_H
13a5045d 470 select NEED_RET_TO_USER
b1b3f49c
RK
471 select PCI
472 select PLAT_IOP
473 select VMSPLIT_1G
37ebbcff 474 select SPARSE_IRQ
3b938be6
RK
475 help
476 Support for Intel's IOP13XX (XScale) family of processors.
477
3f7e5815
LB
478config ARCH_IOP32X
479 bool "IOP32x-based"
a4f7e763 480 depends on MMU
b1b3f49c 481 select ARCH_REQUIRE_GPIOLIB
c750815e 482 select CPU_XSCALE
e9004f50 483 select GPIO_IOP
13a5045d 484 select NEED_RET_TO_USER
f7e68bbf 485 select PCI
b1b3f49c 486 select PLAT_IOP
f999b8bd 487 help
3f7e5815
LB
488 Support for Intel's 80219 and IOP32X (XScale) family of
489 processors.
490
491config ARCH_IOP33X
492 bool "IOP33x-based"
493 depends on MMU
b1b3f49c 494 select ARCH_REQUIRE_GPIOLIB
c750815e 495 select CPU_XSCALE
e9004f50 496 select GPIO_IOP
13a5045d 497 select NEED_RET_TO_USER
3f7e5815 498 select PCI
b1b3f49c 499 select PLAT_IOP
3f7e5815
LB
500 help
501 Support for Intel's IOP33X (XScale) family of processors.
1da177e4 502
3b938be6
RK
503config ARCH_IXP4XX
504 bool "IXP4xx-based"
a4f7e763 505 depends on MMU
58af4a24 506 select ARCH_HAS_DMA_SET_COHERENT_MASK
b1b3f49c 507 select ARCH_REQUIRE_GPIOLIB
51aaf81f 508 select ARCH_SUPPORTS_BIG_ENDIAN
234b6ced 509 select CLKSRC_MMIO
c750815e 510 select CPU_XSCALE
b1b3f49c 511 select DMABOUNCE if PCI
3b938be6 512 select GENERIC_CLOCKEVENTS
0b05da72 513 select MIGHT_HAVE_PCI
c334bc15 514 select NEED_MACH_IO_H
9296d94d 515 select USB_EHCI_BIG_ENDIAN_DESC
171b3f0d 516 select USB_EHCI_BIG_ENDIAN_MMIO
c4713074 517 help
3b938be6 518 Support for Intel's IXP4XX (XScale) family of processors.
c4713074 519
edabd38e
SB
520config ARCH_DOVE
521 bool "Marvell Dove"
edabd38e 522 select ARCH_REQUIRE_GPIOLIB
756b2531 523 select CPU_PJ4
edabd38e 524 select GENERIC_CLOCKEVENTS
0f81bd43 525 select MIGHT_HAVE_PCI
171b3f0d 526 select MVEBU_MBUS
9139acd1
SH
527 select PINCTRL
528 select PINCTRL_DOVE
abcda1dc 529 select PLAT_ORION_LEGACY
edabd38e
SB
530 help
531 Support for the Marvell Dove SoC 88AP510
532
794d15b2
SS
533config ARCH_MV78XX0
534 bool "Marvell MV78xx0"
a8865655 535 select ARCH_REQUIRE_GPIOLIB
b1b3f49c 536 select CPU_FEROCEON
794d15b2 537 select GENERIC_CLOCKEVENTS
171b3f0d 538 select MVEBU_MBUS
b1b3f49c 539 select PCI
abcda1dc 540 select PLAT_ORION_LEGACY
794d15b2
SS
541 help
542 Support for the following Marvell MV78xx0 series SoCs:
543 MV781x0, MV782x0.
544
9dd0b194 545config ARCH_ORION5X
585cf175
TP
546 bool "Marvell Orion"
547 depends on MMU
a8865655 548 select ARCH_REQUIRE_GPIOLIB
b1b3f49c 549 select CPU_FEROCEON
51cbff1d 550 select GENERIC_CLOCKEVENTS
171b3f0d 551 select MVEBU_MBUS
b1b3f49c 552 select PCI
abcda1dc 553 select PLAT_ORION_LEGACY
585cf175 554 help
9dd0b194 555 Support for the following Marvell Orion 5x series SoCs:
d2b2a6bb 556 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
d323ade1 557 Orion-2 (5281), Orion-1-90 (6183).
585cf175 558
788c9700 559config ARCH_MMP
2f7e8fae 560 bool "Marvell PXA168/910/MMP2"
788c9700 561 depends on MMU
788c9700 562 select ARCH_REQUIRE_GPIOLIB
6d803ba7 563 select CLKDEV_LOOKUP
b1b3f49c 564 select GENERIC_ALLOCATOR
788c9700 565 select GENERIC_CLOCKEVENTS
157d2644 566 select GPIO_PXA
c24b3114 567 select IRQ_DOMAIN
0f374561 568 select MULTI_IRQ_HANDLER
7c8f86a4 569 select PINCTRL
788c9700 570 select PLAT_PXA
0bd86961 571 select SPARSE_IRQ
788c9700 572 help
2f7e8fae 573 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
788c9700
RK
574
575config ARCH_KS8695
576 bool "Micrel/Kendin KS8695"
98830bc9 577 select ARCH_REQUIRE_GPIOLIB
c7e783d6 578 select CLKSRC_MMIO
b1b3f49c 579 select CPU_ARM922T
c7e783d6 580 select GENERIC_CLOCKEVENTS
b1b3f49c 581 select NEED_MACH_MEMORY_H
788c9700
RK
582 help
583 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
584 System-on-Chip devices.
585
788c9700
RK
586config ARCH_W90X900
587 bool "Nuvoton W90X900 CPU"
c52d3d68 588 select ARCH_REQUIRE_GPIOLIB
6d803ba7 589 select CLKDEV_LOOKUP
6fa5d5f7 590 select CLKSRC_MMIO
b1b3f49c 591 select CPU_ARM926T
58b5369e 592 select GENERIC_CLOCKEVENTS
788c9700 593 help
a8bc4ead 594 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
595 At present, the w90x900 has been renamed nuc900, regarding
596 the ARM series product line, you can login the following
597 link address to know more.
598
599 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
600 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
788c9700 601
e8d235d4
JE
602config ARCH_LPC18XX
603 bool "NXP LPC18xx/LPC43xx"
604 depends on !MMU
605 select ARCH_HAS_RESET_CONTROLLER
606 select ARCH_REQUIRE_GPIOLIB
607 select ARM_AMBA
608 select ARM_NVIC
609 select AUTO_ZRELADDR
610 select CLKSRC_LPC32XX
611 select COMMON_CLK
612 select CPU_V7M
613 select GENERIC_CLOCKEVENTS
614 select NO_IOPORT_MAP
615 select PINCTRL
616 select SPARSE_IRQ
617 select USE_OF
618 help
619 Support for NXP's LPC18xx Cortex-M3 and LPC43xx Cortex-M4
620 high performance microcontrollers.
621
93e22567
RK
622config ARCH_LPC32XX
623 bool "NXP LPC32XX"
624 select ARCH_REQUIRE_GPIOLIB
625 select ARM_AMBA
626 select CLKDEV_LOOKUP
627 select CLKSRC_MMIO
628 select CPU_ARM926T
629 select GENERIC_CLOCKEVENTS
630 select HAVE_IDE
93e22567
RK
631 select USE_OF
632 help
633 Support for the NXP LPC32XX family of processors
634
1da177e4 635config ARCH_PXA
2c8086a5 636 bool "PXA2xx/PXA3xx-based"
a4f7e763 637 depends on MMU
b1b3f49c
RK
638 select ARCH_MTD_XIP
639 select ARCH_REQUIRE_GPIOLIB
640 select ARM_CPU_SUSPEND if PM
641 select AUTO_ZRELADDR
a1c0a6ad 642 select COMMON_CLK
6d803ba7 643 select CLKDEV_LOOKUP
234b6ced 644 select CLKSRC_MMIO
6f6caeaa 645 select CLKSRC_OF
981d0f39 646 select GENERIC_CLOCKEVENTS
157d2644 647 select GPIO_PXA
d0ee9f40 648 select HAVE_IDE
d6cf30ca 649 select IRQ_DOMAIN
b1b3f49c 650 select MULTI_IRQ_HANDLER
b1b3f49c
RK
651 select PLAT_PXA
652 select SPARSE_IRQ
f999b8bd 653 help
2c8086a5 654 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
1da177e4 655
bf98c1ea 656config ARCH_SHMOBILE_LEGACY
0d9fd616 657 bool "Renesas ARM SoCs (non-multiplatform)"
bf98c1ea 658 select ARCH_SHMOBILE
91942d17 659 select ARM_PATCH_PHYS_VIRT if MMU
5e93c6b4 660 select CLKDEV_LOOKUP
0ed82bc9 661 select CPU_V7
b1b3f49c 662 select GENERIC_CLOCKEVENTS
4c3ffffd 663 select HAVE_ARM_SCU if SMP
a894fcc2 664 select HAVE_ARM_TWD if SMP
3b55658a 665 select HAVE_SMP
ce5ea9f3 666 select MIGHT_HAVE_CACHE_L2X0
60f1435c 667 select MULTI_IRQ_HANDLER
ce816fa8 668 select NO_IOPORT_MAP
2cd3c927 669 select PINCTRL
b1b3f49c 670 select PM_GENERIC_DOMAINS if PM
0cdc23df 671 select SH_CLK_CPG
b1b3f49c 672 select SPARSE_IRQ
c793c1b0 673 help
0d9fd616
LP
674 Support for Renesas ARM SoC platforms using a non-multiplatform
675 kernel. This includes the SH-Mobile, R-Mobile, EMMA-Mobile, R-Car
676 and RZ families.
c793c1b0 677
1da177e4
LT
678config ARCH_RPC
679 bool "RiscPC"
680 select ARCH_ACORN
a08b6b79 681 select ARCH_MAY_HAVE_PC_FDC
07f841b7 682 select ARCH_SPARSEMEM_ENABLE
5cfc8ee0 683 select ARCH_USES_GETTIMEOFFSET
fa04e209 684 select CPU_SA110
b1b3f49c 685 select FIQ
d0ee9f40 686 select HAVE_IDE
b1b3f49c
RK
687 select HAVE_PATA_PLATFORM
688 select ISA_DMA_API
c334bc15 689 select NEED_MACH_IO_H
0cdc8b92 690 select NEED_MACH_MEMORY_H
ce816fa8 691 select NO_IOPORT_MAP
b4811bac 692 select VIRT_TO_BUS
1da177e4
LT
693 help
694 On the Acorn Risc-PC, Linux can support the internal IDE disk and
695 CD-ROM interface, serial and parallel port, and the floppy drive.
696
697config ARCH_SA1100
698 bool "SA1100-based"
b1b3f49c
RK
699 select ARCH_MTD_XIP
700 select ARCH_REQUIRE_GPIOLIB
701 select ARCH_SPARSEMEM_ENABLE
702 select CLKDEV_LOOKUP
703 select CLKSRC_MMIO
1937f5b9 704 select CPU_FREQ
b1b3f49c 705 select CPU_SA1100
3e238be2 706 select GENERIC_CLOCKEVENTS
d0ee9f40 707 select HAVE_IDE
1eca42b4 708 select IRQ_DOMAIN
b1b3f49c 709 select ISA
affcab32 710 select MULTI_IRQ_HANDLER
0cdc8b92 711 select NEED_MACH_MEMORY_H
375dec92 712 select SPARSE_IRQ
f999b8bd
MM
713 help
714 Support for StrongARM 11x0 based boards.
1da177e4 715
b130d5c2
KK
716config ARCH_S3C24XX
717 bool "Samsung S3C24XX SoCs"
53650430 718 select ARCH_REQUIRE_GPIOLIB
335cce74 719 select ATAGS
b1b3f49c 720 select CLKDEV_LOOKUP
4280506a 721 select CLKSRC_SAMSUNG_PWM
7f78b6eb 722 select GENERIC_CLOCKEVENTS
880cf071 723 select GPIO_SAMSUNG
20676c15 724 select HAVE_S3C2410_I2C if I2C
b130d5c2 725 select HAVE_S3C2410_WATCHDOG if WATCHDOG
b1b3f49c 726 select HAVE_S3C_RTC if RTC_CLASS
17453dd2 727 select MULTI_IRQ_HANDLER
c334bc15 728 select NEED_MACH_IO_H
cd8dc7ae 729 select SAMSUNG_ATAGS
1da177e4 730 help
b130d5c2
KK
731 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
732 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
733 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
734 Samsung SMDK2410 development board (and derivatives).
63b1f51b 735
a08ab637
BD
736config ARCH_S3C64XX
737 bool "Samsung S3C64XX"
b1b3f49c 738 select ARCH_REQUIRE_GPIOLIB
1db0287a 739 select ARM_AMBA
89f0ce72 740 select ARM_VIC
335cce74 741 select ATAGS
b1b3f49c 742 select CLKDEV_LOOKUP
4280506a 743 select CLKSRC_SAMSUNG_PWM
ccecba3c 744 select COMMON_CLK_SAMSUNG
70bacadb 745 select CPU_V6K
04a49b71 746 select GENERIC_CLOCKEVENTS
880cf071 747 select GPIO_SAMSUNG
b1b3f49c
RK
748 select HAVE_S3C2410_I2C if I2C
749 select HAVE_S3C2410_WATCHDOG if WATCHDOG
6700397a 750 select HAVE_TCM
ce816fa8 751 select NO_IOPORT_MAP
b1b3f49c 752 select PLAT_SAMSUNG
4ab75a3f 753 select PM_GENERIC_DOMAINS if PM
b1b3f49c
RK
754 select S3C_DEV_NAND
755 select S3C_GPIO_TRACK
cd8dc7ae 756 select SAMSUNG_ATAGS
6e2d9e93 757 select SAMSUNG_WAKEMASK
88f59738 758 select SAMSUNG_WDT_RESET
a08ab637
BD
759 help
760 Samsung S3C64XX series based systems
761
7c6337e2
KH
762config ARCH_DAVINCI
763 bool "TI DaVinci"
b1b3f49c 764 select ARCH_HAS_HOLES_MEMORYMODEL
dce1115b 765 select ARCH_REQUIRE_GPIOLIB
6d803ba7 766 select CLKDEV_LOOKUP
20e9969b 767 select GENERIC_ALLOCATOR
b1b3f49c 768 select GENERIC_CLOCKEVENTS
dc7ad3b3 769 select GENERIC_IRQ_CHIP
b1b3f49c 770 select HAVE_IDE
3ad7a42d 771 select TI_PRIV_EDMA
689e331f 772 select USE_OF
b1b3f49c 773 select ZONE_DMA
7c6337e2
KH
774 help
775 Support for TI's DaVinci platform.
776
a0694861
TL
777config ARCH_OMAP1
778 bool "TI OMAP1"
00a36698 779 depends on MMU
9af915da 780 select ARCH_HAS_HOLES_MEMORYMODEL
a0694861 781 select ARCH_OMAP
21f47fbc 782 select ARCH_REQUIRE_GPIOLIB
b1b3f49c 783 select CLKDEV_LOOKUP
d6e15d78 784 select CLKSRC_MMIO
b1b3f49c 785 select GENERIC_CLOCKEVENTS
a0694861 786 select GENERIC_IRQ_CHIP
a0694861
TL
787 select HAVE_IDE
788 select IRQ_DOMAIN
b694331c 789 select MULTI_IRQ_HANDLER
a0694861
TL
790 select NEED_MACH_IO_H if PCCARD
791 select NEED_MACH_MEMORY_H
685e2d08 792 select SPARSE_IRQ
21f47fbc 793 help
a0694861 794 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
02c981c0 795
9b799b78
MC
796config ARCH_STM32
797 bool "STMicrolectronics STM32"
798 depends on !MMU
799 select ARCH_HAS_RESET_CONTROLLER
800 select ARM_NVIC
801 select ARMV7M_SYSTICK
802 select AUTO_ZRELADDR
803 select CLKSRC_OF
804 select COMMON_CLK
805 select CPU_V7M
806 select GENERIC_CLOCKEVENTS
807 select NO_IOPORT_MAP
808 select RESET_CONTROLLER
809 select SPARSE_IRQ
810 select USE_OF
811 help
812 Support for STMicroelectronics STM32 processors.
813
1da177e4
LT
814endchoice
815
387798b3
RH
816menu "Multiple platform selection"
817 depends on ARCH_MULTIPLATFORM
818
819comment "CPU Core family selection"
820
f8afae40
AB
821config ARCH_MULTI_V4
822 bool "ARMv4 based platforms (FA526)"
823 depends on !ARCH_MULTI_V6_V7
824 select ARCH_MULTI_V4_V5
825 select CPU_FA526
826
387798b3
RH
827config ARCH_MULTI_V4T
828 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
387798b3 829 depends on !ARCH_MULTI_V6_V7
b1b3f49c 830 select ARCH_MULTI_V4_V5
24e860fb
AB
831 select CPU_ARM920T if !(CPU_ARM7TDMI || CPU_ARM720T || \
832 CPU_ARM740T || CPU_ARM9TDMI || CPU_ARM922T || \
833 CPU_ARM925T || CPU_ARM940T)
387798b3
RH
834
835config ARCH_MULTI_V5
836 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
387798b3 837 depends on !ARCH_MULTI_V6_V7
b1b3f49c 838 select ARCH_MULTI_V4_V5
12567bbd 839 select CPU_ARM926T if !(CPU_ARM946E || CPU_ARM1020 || \
24e860fb
AB
840 CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || \
841 CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_FEROCEON)
387798b3
RH
842
843config ARCH_MULTI_V4_V5
844 bool
845
846config ARCH_MULTI_V6
8dda05cc 847 bool "ARMv6 based platforms (ARM11)"
387798b3 848 select ARCH_MULTI_V6_V7
42f4754a 849 select CPU_V6K
387798b3
RH
850
851config ARCH_MULTI_V7
8dda05cc 852 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
387798b3
RH
853 default y
854 select ARCH_MULTI_V6_V7
b1b3f49c 855 select CPU_V7
90bc8ac7 856 select HAVE_SMP
387798b3
RH
857
858config ARCH_MULTI_V6_V7
859 bool
9352b05b 860 select MIGHT_HAVE_CACHE_L2X0
387798b3
RH
861
862config ARCH_MULTI_CPU_AUTO
863 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
864 select ARCH_MULTI_V5
865
866endmenu
867
05e2a3de
RH
868config ARCH_VIRT
869 bool "Dummy Virtual Machine" if ARCH_MULTI_V7
4b8b5f25 870 select ARM_AMBA
05e2a3de 871 select ARM_GIC
05e2a3de 872 select ARM_PSCI
4b8b5f25 873 select HAVE_ARM_ARCH_TIMER
05e2a3de 874
ccf50e23
RK
875#
876# This is sorted alphabetically by mach-* pathname. However, plat-*
877# Kconfigs may be included either alphabetically (according to the
878# plat- suffix) or along side the corresponding mach-* source.
879#
3e93a22b
GC
880source "arch/arm/mach-mvebu/Kconfig"
881
445d9b30
TZ
882source "arch/arm/mach-alpine/Kconfig"
883
d9bfc86d
OR
884source "arch/arm/mach-asm9260/Kconfig"
885
95b8f20f
RK
886source "arch/arm/mach-at91/Kconfig"
887
1d22924e
AB
888source "arch/arm/mach-axxia/Kconfig"
889
8ac49e04
CD
890source "arch/arm/mach-bcm/Kconfig"
891
1c37fa10
SH
892source "arch/arm/mach-berlin/Kconfig"
893
1da177e4
LT
894source "arch/arm/mach-clps711x/Kconfig"
895
d94f944e
AV
896source "arch/arm/mach-cns3xxx/Kconfig"
897
95b8f20f
RK
898source "arch/arm/mach-davinci/Kconfig"
899
df8d742e
BS
900source "arch/arm/mach-digicolor/Kconfig"
901
95b8f20f
RK
902source "arch/arm/mach-dove/Kconfig"
903
e7736d47
LB
904source "arch/arm/mach-ep93xx/Kconfig"
905
1da177e4
LT
906source "arch/arm/mach-footbridge/Kconfig"
907
59d3a193
PZ
908source "arch/arm/mach-gemini/Kconfig"
909
387798b3
RH
910source "arch/arm/mach-highbank/Kconfig"
911
389ee0c2
HZ
912source "arch/arm/mach-hisi/Kconfig"
913
1da177e4
LT
914source "arch/arm/mach-integrator/Kconfig"
915
3f7e5815
LB
916source "arch/arm/mach-iop32x/Kconfig"
917
918source "arch/arm/mach-iop33x/Kconfig"
1da177e4 919
285f5fa7
DW
920source "arch/arm/mach-iop13xx/Kconfig"
921
1da177e4
LT
922source "arch/arm/mach-ixp4xx/Kconfig"
923
828989ad
SS
924source "arch/arm/mach-keystone/Kconfig"
925
95b8f20f
RK
926source "arch/arm/mach-ks8695/Kconfig"
927
3b8f5030
CC
928source "arch/arm/mach-meson/Kconfig"
929
17723fd3
JJ
930source "arch/arm/mach-moxart/Kconfig"
931
794d15b2
SS
932source "arch/arm/mach-mv78xx0/Kconfig"
933
3995eb82 934source "arch/arm/mach-imx/Kconfig"
1da177e4 935
f682a218
MB
936source "arch/arm/mach-mediatek/Kconfig"
937
1d3f33d5
SG
938source "arch/arm/mach-mxs/Kconfig"
939
95b8f20f 940source "arch/arm/mach-netx/Kconfig"
49cbe786 941
95b8f20f 942source "arch/arm/mach-nomadik/Kconfig"
95b8f20f 943
9851ca57
DT
944source "arch/arm/mach-nspire/Kconfig"
945
d48af15e
TL
946source "arch/arm/plat-omap/Kconfig"
947
948source "arch/arm/mach-omap1/Kconfig"
1da177e4 949
1dbae815
TL
950source "arch/arm/mach-omap2/Kconfig"
951
9dd0b194 952source "arch/arm/mach-orion5x/Kconfig"
585cf175 953
387798b3
RH
954source "arch/arm/mach-picoxcell/Kconfig"
955
95b8f20f
RK
956source "arch/arm/mach-pxa/Kconfig"
957source "arch/arm/plat-pxa/Kconfig"
585cf175 958
95b8f20f
RK
959source "arch/arm/mach-mmp/Kconfig"
960
8fc1b0f8
KG
961source "arch/arm/mach-qcom/Kconfig"
962
95b8f20f
RK
963source "arch/arm/mach-realview/Kconfig"
964
d63dc051
HS
965source "arch/arm/mach-rockchip/Kconfig"
966
95b8f20f 967source "arch/arm/mach-sa1100/Kconfig"
edabd38e 968
387798b3
RH
969source "arch/arm/mach-socfpga/Kconfig"
970
a7ed099f 971source "arch/arm/mach-spear/Kconfig"
a21765a7 972
65ebcc11
SK
973source "arch/arm/mach-sti/Kconfig"
974
85fd6d63 975source "arch/arm/mach-s3c24xx/Kconfig"
1da177e4 976
431107ea 977source "arch/arm/mach-s3c64xx/Kconfig"
a08ab637 978
170f4e42
KK
979source "arch/arm/mach-s5pv210/Kconfig"
980
83014579 981source "arch/arm/mach-exynos/Kconfig"
e509b289 982source "arch/arm/plat-samsung/Kconfig"
cc0e72b8 983
882d01f9 984source "arch/arm/mach-shmobile/Kconfig"
52c543f9 985
3b52634f
MR
986source "arch/arm/mach-sunxi/Kconfig"
987
156a0997
BS
988source "arch/arm/mach-prima2/Kconfig"
989
c5f80065
EG
990source "arch/arm/mach-tegra/Kconfig"
991
95b8f20f 992source "arch/arm/mach-u300/Kconfig"
1da177e4 993
ba56a987
MY
994source "arch/arm/mach-uniphier/Kconfig"
995
95b8f20f 996source "arch/arm/mach-ux500/Kconfig"
1da177e4
LT
997
998source "arch/arm/mach-versatile/Kconfig"
999
ceade897 1000source "arch/arm/mach-vexpress/Kconfig"
420c34e4 1001source "arch/arm/plat-versatile/Kconfig"
ceade897 1002
6f35f9a9
TP
1003source "arch/arm/mach-vt8500/Kconfig"
1004
7ec80ddf 1005source "arch/arm/mach-w90x900/Kconfig"
1006
acede515
JN
1007source "arch/arm/mach-zx/Kconfig"
1008
9a45eb69
JC
1009source "arch/arm/mach-zynq/Kconfig"
1010
1da177e4
LT
1011# Definitions to make life easier
1012config ARCH_ACORN
1013 bool
1014
7ae1f7ec
LB
1015config PLAT_IOP
1016 bool
469d3044 1017 select GENERIC_CLOCKEVENTS
7ae1f7ec 1018
69b02f6a
LB
1019config PLAT_ORION
1020 bool
bfe45e0b 1021 select CLKSRC_MMIO
b1b3f49c 1022 select COMMON_CLK
dc7ad3b3 1023 select GENERIC_IRQ_CHIP
278b45b0 1024 select IRQ_DOMAIN
69b02f6a 1025
abcda1dc
TP
1026config PLAT_ORION_LEGACY
1027 bool
1028 select PLAT_ORION
1029
bd5ce433
EM
1030config PLAT_PXA
1031 bool
1032
f4b8b319
RK
1033config PLAT_VERSATILE
1034 bool
1035
e3887714
RK
1036config ARM_TIMER_SP804
1037 bool
bfe45e0b 1038 select CLKSRC_MMIO
7a0eca71 1039 select CLKSRC_OF if OF
e3887714 1040
d9a1beaa
AC
1041source "arch/arm/firmware/Kconfig"
1042
1da177e4
LT
1043source arch/arm/mm/Kconfig
1044
afe4b25e 1045config IWMMXT
d93003e8
SH
1046 bool "Enable iWMMXt support"
1047 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4 || CPU_PJ4B
1048 default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4 || CPU_PJ4B
afe4b25e
LB
1049 help
1050 Enable support for iWMMXt context switching at run time if
1051 running on a CPU that supports it.
1052
52108641 1053config MULTI_IRQ_HANDLER
1054 bool
1055 help
1056 Allow each machine to specify it's own IRQ handler at run time.
1057
3b93e7b0
HC
1058if !MMU
1059source "arch/arm/Kconfig-nommu"
1060endif
1061
3e0a07f8
GC
1062config PJ4B_ERRATA_4742
1063 bool "PJ4B Errata 4742: IDLE Wake Up Commands can Cause the CPU Core to Cease Operation"
1064 depends on CPU_PJ4B && MACH_ARMADA_370
1065 default y
1066 help
1067 When coming out of either a Wait for Interrupt (WFI) or a Wait for
1068 Event (WFE) IDLE states, a specific timing sensitivity exists between
1069 the retiring WFI/WFE instructions and the newly issued subsequent
1070 instructions. This sensitivity can result in a CPU hang scenario.
1071 Workaround:
1072 The software must insert either a Data Synchronization Barrier (DSB)
1073 or Data Memory Barrier (DMB) command immediately after the WFI/WFE
1074 instruction
1075
f0c4b8d6
WD
1076config ARM_ERRATA_326103
1077 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1078 depends on CPU_V6
1079 help
1080 Executing a SWP instruction to read-only memory does not set bit 11
1081 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1082 treat the access as a read, preventing a COW from occurring and
1083 causing the faulting task to livelock.
1084
9cba3ccc
CM
1085config ARM_ERRATA_411920
1086 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
e399b1a4 1087 depends on CPU_V6 || CPU_V6K
9cba3ccc
CM
1088 help
1089 Invalidation of the Instruction Cache operation can
1090 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1091 It does not affect the MPCore. This option enables the ARM Ltd.
1092 recommended workaround.
1093
7ce236fc
CM
1094config ARM_ERRATA_430973
1095 bool "ARM errata: Stale prediction on replaced interworking branch"
1096 depends on CPU_V7
1097 help
1098 This option enables the workaround for the 430973 Cortex-A8
79403cda 1099 r1p* erratum. If a code sequence containing an ARM/Thumb
7ce236fc
CM
1100 interworking branch is replaced with another code sequence at the
1101 same virtual address, whether due to self-modifying code or virtual
1102 to physical address re-mapping, Cortex-A8 does not recover from the
1103 stale interworking branch prediction. This results in Cortex-A8
1104 executing the new code sequence in the incorrect ARM or Thumb state.
1105 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1106 and also flushes the branch target cache at every context switch.
1107 Note that setting specific bits in the ACTLR register may not be
1108 available in non-secure mode.
1109
855c551f
CM
1110config ARM_ERRATA_458693
1111 bool "ARM errata: Processor deadlock when a false hazard is created"
1112 depends on CPU_V7
62e4d357 1113 depends on !ARCH_MULTIPLATFORM
855c551f
CM
1114 help
1115 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1116 erratum. For very specific sequences of memory operations, it is
1117 possible for a hazard condition intended for a cache line to instead
1118 be incorrectly associated with a different cache line. This false
1119 hazard might then cause a processor deadlock. The workaround enables
1120 the L1 caching of the NEON accesses and disables the PLD instruction
1121 in the ACTLR register. Note that setting specific bits in the ACTLR
1122 register may not be available in non-secure mode.
1123
0516e464
CM
1124config ARM_ERRATA_460075
1125 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1126 depends on CPU_V7
62e4d357 1127 depends on !ARCH_MULTIPLATFORM
0516e464
CM
1128 help
1129 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1130 erratum. Any asynchronous access to the L2 cache may encounter a
1131 situation in which recent store transactions to the L2 cache are lost
1132 and overwritten with stale memory contents from external memory. The
1133 workaround disables the write-allocate mode for the L2 cache via the
1134 ACTLR register. Note that setting specific bits in the ACTLR register
1135 may not be available in non-secure mode.
1136
9f05027c
WD
1137config ARM_ERRATA_742230
1138 bool "ARM errata: DMB operation may be faulty"
1139 depends on CPU_V7 && SMP
62e4d357 1140 depends on !ARCH_MULTIPLATFORM
9f05027c
WD
1141 help
1142 This option enables the workaround for the 742230 Cortex-A9
1143 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1144 between two write operations may not ensure the correct visibility
1145 ordering of the two writes. This workaround sets a specific bit in
1146 the diagnostic register of the Cortex-A9 which causes the DMB
1147 instruction to behave as a DSB, ensuring the correct behaviour of
1148 the two writes.
1149
a672e99b
WD
1150config ARM_ERRATA_742231
1151 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1152 depends on CPU_V7 && SMP
62e4d357 1153 depends on !ARCH_MULTIPLATFORM
a672e99b
WD
1154 help
1155 This option enables the workaround for the 742231 Cortex-A9
1156 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1157 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1158 accessing some data located in the same cache line, may get corrupted
1159 data due to bad handling of the address hazard when the line gets
1160 replaced from one of the CPUs at the same time as another CPU is
1161 accessing it. This workaround sets specific bits in the diagnostic
1162 register of the Cortex-A9 which reduces the linefill issuing
1163 capabilities of the processor.
1164
69155794
JM
1165config ARM_ERRATA_643719
1166 bool "ARM errata: LoUIS bit field in CLIDR register is incorrect"
1167 depends on CPU_V7 && SMP
e5a5de44 1168 default y
69155794
JM
1169 help
1170 This option enables the workaround for the 643719 Cortex-A9 (prior to
1171 r1p0) erratum. On affected cores the LoUIS bit field of the CLIDR
1172 register returns zero when it should return one. The workaround
1173 corrects this value, ensuring cache maintenance operations which use
1174 it behave as intended and avoiding data corruption.
1175
cdf357f1
WD
1176config ARM_ERRATA_720789
1177 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
e66dc745 1178 depends on CPU_V7
cdf357f1
WD
1179 help
1180 This option enables the workaround for the 720789 Cortex-A9 (prior to
1181 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1182 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1183 As a consequence of this erratum, some TLB entries which should be
1184 invalidated are not, resulting in an incoherency in the system page
1185 tables. The workaround changes the TLB flushing routines to invalidate
1186 entries regardless of the ASID.
475d92fc
WD
1187
1188config ARM_ERRATA_743622
1189 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1190 depends on CPU_V7
62e4d357 1191 depends on !ARCH_MULTIPLATFORM
475d92fc
WD
1192 help
1193 This option enables the workaround for the 743622 Cortex-A9
efbc74ac 1194 (r2p*) erratum. Under very rare conditions, a faulty
475d92fc
WD
1195 optimisation in the Cortex-A9 Store Buffer may lead to data
1196 corruption. This workaround sets a specific bit in the diagnostic
1197 register of the Cortex-A9 which disables the Store Buffer
1198 optimisation, preventing the defect from occurring. This has no
1199 visible impact on the overall performance or power consumption of the
1200 processor.
1201
9a27c27c
WD
1202config ARM_ERRATA_751472
1203 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
ba90c516 1204 depends on CPU_V7
62e4d357 1205 depends on !ARCH_MULTIPLATFORM
9a27c27c
WD
1206 help
1207 This option enables the workaround for the 751472 Cortex-A9 (prior
1208 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1209 completion of a following broadcasted operation if the second
1210 operation is received by a CPU before the ICIALLUIS has completed,
1211 potentially leading to corrupted entries in the cache or TLB.
1212
fcbdc5fe
WD
1213config ARM_ERRATA_754322
1214 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1215 depends on CPU_V7
1216 help
1217 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1218 r3p*) erratum. A speculative memory access may cause a page table walk
1219 which starts prior to an ASID switch but completes afterwards. This
1220 can populate the micro-TLB with a stale entry which may be hit with
1221 the new ASID. This workaround places two dsb instructions in the mm
1222 switching code so that no page table walks can cross the ASID switch.
1223
5dab26af
WD
1224config ARM_ERRATA_754327
1225 bool "ARM errata: no automatic Store Buffer drain"
1226 depends on CPU_V7 && SMP
1227 help
1228 This option enables the workaround for the 754327 Cortex-A9 (prior to
1229 r2p0) erratum. The Store Buffer does not have any automatic draining
1230 mechanism and therefore a livelock may occur if an external agent
1231 continuously polls a memory location waiting to observe an update.
1232 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1233 written polling loops from denying visibility of updates to memory.
1234
145e10e1
CM
1235config ARM_ERRATA_364296
1236 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
fd832478 1237 depends on CPU_V6
145e10e1
CM
1238 help
1239 This options enables the workaround for the 364296 ARM1136
1240 r0p2 erratum (possible cache data corruption with
1241 hit-under-miss enabled). It sets the undocumented bit 31 in
1242 the auxiliary control register and the FI bit in the control
1243 register, thus disabling hit-under-miss without putting the
1244 processor into full low interrupt latency mode. ARM11MPCore
1245 is not affected.
1246
f630c1bd
WD
1247config ARM_ERRATA_764369
1248 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1249 depends on CPU_V7 && SMP
1250 help
1251 This option enables the workaround for erratum 764369
1252 affecting Cortex-A9 MPCore with two or more processors (all
1253 current revisions). Under certain timing circumstances, a data
1254 cache line maintenance operation by MVA targeting an Inner
1255 Shareable memory region may fail to proceed up to either the
1256 Point of Coherency or to the Point of Unification of the
1257 system. This workaround adds a DSB instruction before the
1258 relevant cache maintenance functions and sets a specific bit
1259 in the diagnostic control register of the SCU.
1260
7253b85c
SH
1261config ARM_ERRATA_775420
1262 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1263 depends on CPU_V7
1264 help
1265 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1266 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1267 operation aborts with MMU exception, it might cause the processor
1268 to deadlock. This workaround puts DSB before executing ISB if
1269 an abort may occur on cache maintenance.
1270
93dc6887
CM
1271config ARM_ERRATA_798181
1272 bool "ARM errata: TLBI/DSB failure on Cortex-A15"
1273 depends on CPU_V7 && SMP
1274 help
1275 On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
1276 adequately shooting down all use of the old entries. This
1277 option enables the Linux kernel workaround for this erratum
1278 which sends an IPI to the CPUs that are running the same ASID
1279 as the one being invalidated.
1280
84b6504f
WD
1281config ARM_ERRATA_773022
1282 bool "ARM errata: incorrect instructions may be executed from loop buffer"
1283 depends on CPU_V7
1284 help
1285 This option enables the workaround for the 773022 Cortex-A15
1286 (up to r0p4) erratum. In certain rare sequences of code, the
1287 loop buffer may deliver incorrect instructions. This
1288 workaround disables the loop buffer to avoid the erratum.
1289
1da177e4
LT
1290endmenu
1291
1292source "arch/arm/common/Kconfig"
1293
1da177e4
LT
1294menu "Bus support"
1295
1da177e4
LT
1296config ISA
1297 bool
1da177e4
LT
1298 help
1299 Find out whether you have ISA slots on your motherboard. ISA is the
1300 name of a bus system, i.e. the way the CPU talks to the other stuff
1301 inside your box. Other bus systems are PCI, EISA, MicroChannel
1302 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1303 newer boards don't support it. If you have ISA, say Y, otherwise N.
1304
065909b9 1305# Select ISA DMA controller support
1da177e4
LT
1306config ISA_DMA
1307 bool
065909b9 1308 select ISA_DMA_API
1da177e4 1309
065909b9 1310# Select ISA DMA interface
5cae841b
AV
1311config ISA_DMA_API
1312 bool
5cae841b 1313
1da177e4 1314config PCI
0b05da72 1315 bool "PCI support" if MIGHT_HAVE_PCI
1da177e4
LT
1316 help
1317 Find out whether you have a PCI motherboard. PCI is the name of a
1318 bus system, i.e. the way the CPU talks to the other stuff inside
1319 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1320 VESA. If you have PCI, say Y, otherwise N.
1321
52882173
AV
1322config PCI_DOMAINS
1323 bool
1324 depends on PCI
1325
8c7d1474
LP
1326config PCI_DOMAINS_GENERIC
1327 def_bool PCI_DOMAINS
1328
b080ac8a
MRJ
1329config PCI_NANOENGINE
1330 bool "BSE nanoEngine PCI support"
1331 depends on SA1100_NANOENGINE
1332 help
1333 Enable PCI on the BSE nanoEngine board.
1334
36e23590
MW
1335config PCI_SYSCALL
1336 def_bool PCI
1337
a0113a99
MR
1338config PCI_HOST_ITE8152
1339 bool
1340 depends on PCI && MACH_ARMCORE
1341 default y
1342 select DMABOUNCE
1343
1da177e4 1344source "drivers/pci/Kconfig"
3f06d157 1345source "drivers/pci/pcie/Kconfig"
1da177e4
LT
1346
1347source "drivers/pcmcia/Kconfig"
1348
1349endmenu
1350
1351menu "Kernel Features"
1352
3b55658a
DM
1353config HAVE_SMP
1354 bool
1355 help
1356 This option should be selected by machines which have an SMP-
1357 capable CPU.
1358
1359 The only effect of this option is to make the SMP-related
1360 options available to the user for configuration.
1361
1da177e4 1362config SMP
bb2d8130 1363 bool "Symmetric Multi-Processing"
fbb4ddac 1364 depends on CPU_V6K || CPU_V7
bc28248e 1365 depends on GENERIC_CLOCKEVENTS
3b55658a 1366 depends on HAVE_SMP
801bb21c 1367 depends on MMU || ARM_MPU
1da177e4
LT
1368 help
1369 This enables support for systems with more than one CPU. If you have
4a474157
RG
1370 a system with only one CPU, say N. If you have a system with more
1371 than one CPU, say Y.
1da177e4 1372
4a474157 1373 If you say N here, the kernel will run on uni- and multiprocessor
1da177e4 1374 machines, but will use only one CPU of a multiprocessor machine. If
4a474157
RG
1375 you say Y here, the kernel will run on many, but not all,
1376 uniprocessor machines. On a uniprocessor machine, the kernel
1377 will run faster if you say N here.
1da177e4 1378
395cf969 1379 See also <file:Documentation/x86/i386/IO-APIC.txt>,
1da177e4 1380 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
50a23e6e 1381 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
1da177e4
LT
1382
1383 If you don't know what to do here, say N.
1384
f00ec48f 1385config SMP_ON_UP
5744ff43 1386 bool "Allow booting SMP kernel on uniprocessor systems"
801bb21c 1387 depends on SMP && !XIP_KERNEL && MMU
f00ec48f
RK
1388 default y
1389 help
1390 SMP kernels contain instructions which fail on non-SMP processors.
1391 Enabling this option allows the kernel to modify itself to make
1392 these instructions safe. Disabling it allows about 1K of space
1393 savings.
1394
1395 If you don't know what to do here, say Y.
1396
c9018aab
VG
1397config ARM_CPU_TOPOLOGY
1398 bool "Support cpu topology definition"
1399 depends on SMP && CPU_V7
1400 default y
1401 help
1402 Support ARM cpu topology definition. The MPIDR register defines
1403 affinity between processors which is then used to describe the cpu
1404 topology of an ARM System.
1405
1406config SCHED_MC
1407 bool "Multi-core scheduler support"
1408 depends on ARM_CPU_TOPOLOGY
1409 help
1410 Multi-core scheduler support improves the CPU scheduler's decision
1411 making when dealing with multi-core CPU chips at a cost of slightly
1412 increased overhead in some places. If unsure say N here.
1413
1414config SCHED_SMT
1415 bool "SMT scheduler support"
1416 depends on ARM_CPU_TOPOLOGY
1417 help
1418 Improves the CPU scheduler's decision making when dealing with
1419 MultiThreading at a cost of slightly increased overhead in some
1420 places. If unsure say N here.
1421
a8cbcd92
RK
1422config HAVE_ARM_SCU
1423 bool
a8cbcd92
RK
1424 help
1425 This option enables support for the ARM system coherency unit
1426
8a4da6e3 1427config HAVE_ARM_ARCH_TIMER
022c03a2
MZ
1428 bool "Architected timer support"
1429 depends on CPU_V7
8a4da6e3 1430 select ARM_ARCH_TIMER
0c403462 1431 select GENERIC_CLOCKEVENTS
022c03a2
MZ
1432 help
1433 This option enables support for the ARM architected timer
1434
f32f4ce2
RK
1435config HAVE_ARM_TWD
1436 bool
1437 depends on SMP
da4a686a 1438 select CLKSRC_OF if OF
f32f4ce2
RK
1439 help
1440 This options enables support for the ARM timer and watchdog unit
1441
e8db288e
NP
1442config MCPM
1443 bool "Multi-Cluster Power Management"
1444 depends on CPU_V7 && SMP
1445 help
1446 This option provides the common power management infrastructure
1447 for (multi-)cluster based systems, such as big.LITTLE based
1448 systems.
1449
ebf4a5c5
HZ
1450config MCPM_QUAD_CLUSTER
1451 bool
1452 depends on MCPM
1453 help
1454 To avoid wasting resources unnecessarily, MCPM only supports up
1455 to 2 clusters by default.
1456 Platforms with 3 or 4 clusters that use MCPM must select this
1457 option to allow the additional clusters to be managed.
1458
1c33be57
NP
1459config BIG_LITTLE
1460 bool "big.LITTLE support (Experimental)"
1461 depends on CPU_V7 && SMP
1462 select MCPM
1463 help
1464 This option enables support selections for the big.LITTLE
1465 system architecture.
1466
1467config BL_SWITCHER
1468 bool "big.LITTLE switcher support"
1469 depends on BIG_LITTLE && MCPM && HOTPLUG_CPU
1c33be57 1470 select ARM_CPU_SUSPEND
51aaf81f 1471 select CPU_PM
1c33be57
NP
1472 help
1473 The big.LITTLE "switcher" provides the core functionality to
1474 transparently handle transition between a cluster of A15's
1475 and a cluster of A7's in a big.LITTLE system.
1476
b22537c6
NP
1477config BL_SWITCHER_DUMMY_IF
1478 tristate "Simple big.LITTLE switcher user interface"
1479 depends on BL_SWITCHER && DEBUG_KERNEL
1480 help
1481 This is a simple and dummy char dev interface to control
1482 the big.LITTLE switcher core code. It is meant for
1483 debugging purposes only.
1484
8d5796d2
LB
1485choice
1486 prompt "Memory split"
006fa259 1487 depends on MMU
8d5796d2
LB
1488 default VMSPLIT_3G
1489 help
1490 Select the desired split between kernel and user memory.
1491
1492 If you are not absolutely sure what you are doing, leave this
1493 option alone!
1494
1495 config VMSPLIT_3G
1496 bool "3G/1G user/kernel split"
1497 config VMSPLIT_2G
1498 bool "2G/2G user/kernel split"
1499 config VMSPLIT_1G
1500 bool "1G/3G user/kernel split"
1501endchoice
1502
1503config PAGE_OFFSET
1504 hex
006fa259 1505 default PHYS_OFFSET if !MMU
8d5796d2
LB
1506 default 0x40000000 if VMSPLIT_1G
1507 default 0x80000000 if VMSPLIT_2G
1508 default 0xC0000000
1509
1da177e4
LT
1510config NR_CPUS
1511 int "Maximum number of CPUs (2-32)"
1512 range 2 32
1513 depends on SMP
1514 default "4"
1515
a054a811 1516config HOTPLUG_CPU
00b7dede 1517 bool "Support for hot-pluggable CPUs"
40b31360 1518 depends on SMP
a054a811
RK
1519 help
1520 Say Y here to experiment with turning CPUs off and on. CPUs
1521 can be controlled through /sys/devices/system/cpu.
1522
2bdd424f
WD
1523config ARM_PSCI
1524 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1525 depends on CPU_V7
1526 help
1527 Say Y here if you want Linux to communicate with system firmware
1528 implementing the PSCI specification for CPU-centric power
1529 management operations described in ARM document number ARM DEN
1530 0022A ("Power State Coordination Interface System Software on
1531 ARM processors").
1532
2a6ad871
MR
1533# The GPIO number here must be sorted by descending number. In case of
1534# a multiplatform kernel, we just want the highest value required by the
1535# selected platforms.
44986ab0
PDSN
1536config ARCH_NR_GPIO
1537 int
6a4d8f36 1538 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA || ARCH_ZYNQ
aa42587a
TF
1539 default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || \
1540 SOC_DRA7XX || ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210
eb171a99 1541 default 416 if ARCH_SUNXI
06b851e5 1542 default 392 if ARCH_U8500
01bb914c 1543 default 352 if ARCH_VT8500
7b5da4c3 1544 default 288 if ARCH_ROCKCHIP
2a6ad871 1545 default 264 if MACH_H4700
44986ab0
PDSN
1546 default 0
1547 help
1548 Maximum number of GPIOs in the system.
1549
1550 If unsure, leave the default value.
1551
d45a398f 1552source kernel/Kconfig.preempt
1da177e4 1553
c9218b16 1554config HZ_FIXED
f8065813 1555 int
070b8b43 1556 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || \
a73ddc61 1557 ARCH_S5PV210 || ARCH_EXYNOS4
1164f672 1558 default 128 if SOC_AT91RM9200
bf98c1ea 1559 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE_LEGACY
47d84682 1560 default 0
c9218b16
RK
1561
1562choice
47d84682 1563 depends on HZ_FIXED = 0
c9218b16
RK
1564 prompt "Timer frequency"
1565
1566config HZ_100
1567 bool "100 Hz"
1568
1569config HZ_200
1570 bool "200 Hz"
1571
1572config HZ_250
1573 bool "250 Hz"
1574
1575config HZ_300
1576 bool "300 Hz"
1577
1578config HZ_500
1579 bool "500 Hz"
1580
1581config HZ_1000
1582 bool "1000 Hz"
1583
1584endchoice
1585
1586config HZ
1587 int
47d84682 1588 default HZ_FIXED if HZ_FIXED != 0
c9218b16
RK
1589 default 100 if HZ_100
1590 default 200 if HZ_200
1591 default 250 if HZ_250
1592 default 300 if HZ_300
1593 default 500 if HZ_500
1594 default 1000
1595
1596config SCHED_HRTICK
1597 def_bool HIGH_RES_TIMERS
f8065813 1598
16c79651 1599config THUMB2_KERNEL
bc7dea00 1600 bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
4477ca45 1601 depends on (CPU_V7 || CPU_V7M) && !CPU_V6 && !CPU_V6K
bc7dea00 1602 default y if CPU_THUMBONLY
16c79651
CM
1603 select AEABI
1604 select ARM_ASM_UNIFIED
89bace65 1605 select ARM_UNWIND
16c79651
CM
1606 help
1607 By enabling this option, the kernel will be compiled in
1608 Thumb-2 mode. A compiler/assembler that understand the unified
1609 ARM-Thumb syntax is needed.
1610
1611 If unsure, say N.
1612
6f685c5c
DM
1613config THUMB2_AVOID_R_ARM_THM_JUMP11
1614 bool "Work around buggy Thumb-2 short branch relocations in gas"
1615 depends on THUMB2_KERNEL && MODULES
1616 default y
1617 help
1618 Various binutils versions can resolve Thumb-2 branches to
1619 locally-defined, preemptible global symbols as short-range "b.n"
1620 branch instructions.
1621
1622 This is a problem, because there's no guarantee the final
1623 destination of the symbol, or any candidate locations for a
1624 trampoline, are within range of the branch. For this reason, the
1625 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1626 relocation in modules at all, and it makes little sense to add
1627 support.
1628
1629 The symptom is that the kernel fails with an "unsupported
1630 relocation" error when loading some modules.
1631
1632 Until fixed tools are available, passing
1633 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1634 code which hits this problem, at the cost of a bit of extra runtime
1635 stack usage in some cases.
1636
1637 The problem is described in more detail at:
1638 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1639
1640 Only Thumb-2 kernels are affected.
1641
1642 Unless you are sure your tools don't have this problem, say Y.
1643
0becb088
CM
1644config ARM_ASM_UNIFIED
1645 bool
1646
704bdda0
NP
1647config AEABI
1648 bool "Use the ARM EABI to compile the kernel"
1649 help
1650 This option allows for the kernel to be compiled using the latest
1651 ARM ABI (aka EABI). This is only useful if you are using a user
1652 space environment that is also compiled with EABI.
1653
1654 Since there are major incompatibilities between the legacy ABI and
1655 EABI, especially with regard to structure member alignment, this
1656 option also changes the kernel syscall calling convention to
1657 disambiguate both ABIs and allow for backward compatibility support
1658 (selected with CONFIG_OABI_COMPAT).
1659
1660 To use this you need GCC version 4.0.0 or later.
1661
6c90c872 1662config OABI_COMPAT
a73a3ff1 1663 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
d6f94fa0 1664 depends on AEABI && !THUMB2_KERNEL
6c90c872
NP
1665 help
1666 This option preserves the old syscall interface along with the
1667 new (ARM EABI) one. It also provides a compatibility layer to
1668 intercept syscalls that have structure arguments which layout
1669 in memory differs between the legacy ABI and the new ARM EABI
1670 (only for non "thumb" binaries). This option adds a tiny
1671 overhead to all syscalls and produces a slightly larger kernel.
91702175
KC
1672
1673 The seccomp filter system will not be available when this is
1674 selected, since there is no way yet to sensibly distinguish
1675 between calling conventions during filtering.
1676
6c90c872
NP
1677 If you know you'll be using only pure EABI user space then you
1678 can say N here. If this option is not selected and you attempt
1679 to execute a legacy ABI binary then the result will be
1680 UNPREDICTABLE (in fact it can be predicted that it won't work
b02f8467 1681 at all). If in doubt say N.
6c90c872 1682
eb33575c 1683config ARCH_HAS_HOLES_MEMORYMODEL
e80d6a24 1684 bool
e80d6a24 1685
05944d74
RK
1686config ARCH_SPARSEMEM_ENABLE
1687 bool
1688
07a2f737
RK
1689config ARCH_SPARSEMEM_DEFAULT
1690 def_bool ARCH_SPARSEMEM_ENABLE
1691
05944d74 1692config ARCH_SELECT_MEMORY_MODEL
be370302 1693 def_bool ARCH_SPARSEMEM_ENABLE
c80d79d7 1694
7b7bf499
WD
1695config HAVE_ARCH_PFN_VALID
1696 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1697
b8cd51af
SC
1698config HAVE_GENERIC_RCU_GUP
1699 def_bool y
1700 depends on ARM_LPAE
1701
053a96ca 1702config HIGHMEM
e8db89a2
RK
1703 bool "High Memory Support"
1704 depends on MMU
053a96ca
NP
1705 help
1706 The address space of ARM processors is only 4 Gigabytes large
1707 and it has to accommodate user address space, kernel address
1708 space as well as some memory mapped IO. That means that, if you
1709 have a large amount of physical memory and/or IO, not all of the
1710 memory can be "permanently mapped" by the kernel. The physical
1711 memory that is not permanently mapped is called "high memory".
1712
1713 Depending on the selected kernel/user memory split, minimum
1714 vmalloc space and actual amount of RAM, you may not need this
1715 option which should result in a slightly faster kernel.
1716
1717 If unsure, say n.
1718
65cec8e3
RK
1719config HIGHPTE
1720 bool "Allocate 2nd-level pagetables from highmem"
1721 depends on HIGHMEM
65cec8e3 1722
1b8873a0
JI
1723config HW_PERF_EVENTS
1724 bool "Enable hardware performance counter support for perf events"
f0d1bc47 1725 depends on PERF_EVENTS
1b8873a0
JI
1726 default y
1727 help
1728 Enable hardware performance counter support for perf events. If
1729 disabled, perf events will use software events only.
1730
1355e2a6
CM
1731config SYS_SUPPORTS_HUGETLBFS
1732 def_bool y
1733 depends on ARM_LPAE
1734
8d962507
CM
1735config HAVE_ARCH_TRANSPARENT_HUGEPAGE
1736 def_bool y
1737 depends on ARM_LPAE
1738
4bfab203
SC
1739config ARCH_WANT_GENERAL_HUGETLB
1740 def_bool y
1741
3f22ab27
DH
1742source "mm/Kconfig"
1743
c1b2d970 1744config FORCE_MAX_ZONEORDER
bf98c1ea
LP
1745 int "Maximum zone order" if ARCH_SHMOBILE_LEGACY
1746 range 11 64 if ARCH_SHMOBILE_LEGACY
898f08e1 1747 default "12" if SOC_AM33XX
6d85e2b0 1748 default "9" if SA1111 || ARCH_EFM32
c1b2d970
MD
1749 default "11"
1750 help
1751 The kernel memory allocator divides physically contiguous memory
1752 blocks into "zones", where each zone is a power of two number of
1753 pages. This option selects the largest power of two that the kernel
1754 keeps in the memory allocator. If you need to allocate very large
1755 blocks of physically contiguous memory, then you may need to
1756 increase this value.
1757
1758 This config option is actually maximum order plus one. For example,
1759 a value of 11 means that the largest free memory block is 2^10 pages.
1760
1da177e4
LT
1761config ALIGNMENT_TRAP
1762 bool
f12d0d7c 1763 depends on CPU_CP15_MMU
1da177e4 1764 default y if !ARCH_EBSA110
e119bfff 1765 select HAVE_PROC_CPU if PROC_FS
1da177e4 1766 help
84eb8d06 1767 ARM processors cannot fetch/store information which is not
1da177e4
LT
1768 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1769 address divisible by 4. On 32-bit ARM processors, these non-aligned
1770 fetch/store instructions will be emulated in software if you say
1771 here, which has a severe performance impact. This is necessary for
1772 correct operation of some network protocols. With an IP-only
1773 configuration it is safe to say N, otherwise say Y.
1774
39ec58f3 1775config UACCESS_WITH_MEMCPY
38ef2ad5
LW
1776 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1777 depends on MMU
39ec58f3
LB
1778 default y if CPU_FEROCEON
1779 help
1780 Implement faster copy_to_user and clear_user methods for CPU
1781 cores where a 8-word STM instruction give significantly higher
1782 memory write throughput than a sequence of individual 32bit stores.
1783
1784 A possible side effect is a slight increase in scheduling latency
1785 between threads sharing the same address space if they invoke
1786 such copy operations with large buffers.
1787
1788 However, if the CPU data cache is using a write-allocate mode,
1789 this option is unlikely to provide any performance gain.
1790
70c70d97
NP
1791config SECCOMP
1792 bool
1793 prompt "Enable seccomp to safely compute untrusted bytecode"
1794 ---help---
1795 This kernel feature is useful for number crunching applications
1796 that may need to compute untrusted bytecode during their
1797 execution. By using pipes or other transports made available to
1798 the process as file descriptors supporting the read/write
1799 syscalls, it's possible to isolate those applications in
1800 their own address space using seccomp. Once seccomp is
1801 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1802 and the task is only allowed to execute a few safe syscalls
1803 defined by each seccomp mode.
1804
06e6295b
SS
1805config SWIOTLB
1806 def_bool y
1807
1808config IOMMU_HELPER
1809 def_bool SWIOTLB
1810
eff8d644
SS
1811config XEN_DOM0
1812 def_bool y
1813 depends on XEN
1814
1815config XEN
c2ba1f7d 1816 bool "Xen guest support on ARM"
85323a99 1817 depends on ARM && AEABI && OF
f880b67d 1818 depends on CPU_V7 && !CPU_V6
85323a99 1819 depends on !GENERIC_ATOMIC64
7693decc 1820 depends on MMU
51aaf81f 1821 select ARCH_DMA_ADDR_T_64BIT
17b7ab80 1822 select ARM_PSCI
83862ccf 1823 select SWIOTLB_XEN
eff8d644
SS
1824 help
1825 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1826
1da177e4
LT
1827endmenu
1828
1829menu "Boot options"
1830
9eb8f674
GL
1831config USE_OF
1832 bool "Flattened Device Tree support"
b1b3f49c 1833 select IRQ_DOMAIN
9eb8f674
GL
1834 select OF
1835 select OF_EARLY_FLATTREE
bcedb5f9 1836 select OF_RESERVED_MEM
9eb8f674
GL
1837 help
1838 Include support for flattened device tree machine descriptions.
1839
bd51e2f5
NP
1840config ATAGS
1841 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1842 default y
1843 help
1844 This is the traditional way of passing data to the kernel at boot
1845 time. If you are solely relying on the flattened device tree (or
1846 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1847 to remove ATAGS support from your kernel binary. If unsure,
1848 leave this to y.
1849
1850config DEPRECATED_PARAM_STRUCT
1851 bool "Provide old way to pass kernel parameters"
1852 depends on ATAGS
1853 help
1854 This was deprecated in 2001 and announced to live on for 5 years.
1855 Some old boot loaders still use this way.
1856
1da177e4
LT
1857# Compressed boot loader in ROM. Yes, we really want to ask about
1858# TEXT and BSS so we preserve their values in the config files.
1859config ZBOOT_ROM_TEXT
1860 hex "Compressed ROM boot loader base address"
1861 default "0"
1862 help
1863 The physical address at which the ROM-able zImage is to be
1864 placed in the target. Platforms which normally make use of
1865 ROM-able zImage formats normally set this to a suitable
1866 value in their defconfig file.
1867
1868 If ZBOOT_ROM is not enabled, this has no effect.
1869
1870config ZBOOT_ROM_BSS
1871 hex "Compressed ROM boot loader BSS address"
1872 default "0"
1873 help
f8c440b2
DF
1874 The base address of an area of read/write memory in the target
1875 for the ROM-able zImage which must be available while the
1876 decompressor is running. It must be large enough to hold the
1877 entire decompressed kernel plus an additional 128 KiB.
1878 Platforms which normally make use of ROM-able zImage formats
1879 normally set this to a suitable value in their defconfig file.
1da177e4
LT
1880
1881 If ZBOOT_ROM is not enabled, this has no effect.
1882
1883config ZBOOT_ROM
1884 bool "Compressed boot loader in ROM/flash"
1885 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
10968131 1886 depends on !ARM_APPENDED_DTB && !XIP_KERNEL && !AUTO_ZRELADDR
1da177e4
LT
1887 help
1888 Say Y here if you intend to execute your compressed kernel image
1889 (zImage) directly from ROM or flash. If unsure, say N.
1890
e2a6a3aa
JB
1891config ARM_APPENDED_DTB
1892 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
10968131 1893 depends on OF
e2a6a3aa
JB
1894 help
1895 With this option, the boot code will look for a device tree binary
1896 (DTB) appended to zImage
1897 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1898
1899 This is meant as a backward compatibility convenience for those
1900 systems with a bootloader that can't be upgraded to accommodate
1901 the documented boot protocol using a device tree.
1902
1903 Beware that there is very little in terms of protection against
1904 this option being confused by leftover garbage in memory that might
1905 look like a DTB header after a reboot if no actual DTB is appended
1906 to zImage. Do not leave this option active in a production kernel
1907 if you don't intend to always append a DTB. Proper passing of the
1908 location into r2 of a bootloader provided DTB is always preferable
1909 to this option.
1910
b90b9a38
NP
1911config ARM_ATAG_DTB_COMPAT
1912 bool "Supplement the appended DTB with traditional ATAG information"
1913 depends on ARM_APPENDED_DTB
1914 help
1915 Some old bootloaders can't be updated to a DTB capable one, yet
1916 they provide ATAGs with memory configuration, the ramdisk address,
1917 the kernel cmdline string, etc. Such information is dynamically
1918 provided by the bootloader and can't always be stored in a static
1919 DTB. To allow a device tree enabled kernel to be used with such
1920 bootloaders, this option allows zImage to extract the information
1921 from the ATAG list and store it at run time into the appended DTB.
1922
d0f34a11
GR
1923choice
1924 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
1925 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1926
1927config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1928 bool "Use bootloader kernel arguments if available"
1929 help
1930 Uses the command-line options passed by the boot loader instead of
1931 the device tree bootargs property. If the boot loader doesn't provide
1932 any, the device tree bootargs property will be used.
1933
1934config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
1935 bool "Extend with bootloader kernel arguments"
1936 help
1937 The command-line arguments provided by the boot loader will be
1938 appended to the the device tree bootargs property.
1939
1940endchoice
1941
1da177e4
LT
1942config CMDLINE
1943 string "Default kernel command string"
1944 default ""
1945 help
1946 On some architectures (EBSA110 and CATS), there is currently no way
1947 for the boot loader to pass arguments to the kernel. For these
1948 architectures, you should supply some command-line options at build
1949 time by entering them here. As a minimum, you should specify the
1950 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1951
4394c124
VB
1952choice
1953 prompt "Kernel command line type" if CMDLINE != ""
1954 default CMDLINE_FROM_BOOTLOADER
bd51e2f5 1955 depends on ATAGS
4394c124
VB
1956
1957config CMDLINE_FROM_BOOTLOADER
1958 bool "Use bootloader kernel arguments if available"
1959 help
1960 Uses the command-line options passed by the boot loader. If
1961 the boot loader doesn't provide any, the default kernel command
1962 string provided in CMDLINE will be used.
1963
1964config CMDLINE_EXTEND
1965 bool "Extend bootloader kernel arguments"
1966 help
1967 The command-line arguments provided by the boot loader will be
1968 appended to the default kernel command string.
1969
92d2040d
AH
1970config CMDLINE_FORCE
1971 bool "Always use the default kernel command string"
92d2040d
AH
1972 help
1973 Always use the default kernel command string, even if the boot
1974 loader passes other arguments to the kernel.
1975 This is useful if you cannot or don't want to change the
1976 command-line options your boot loader passes to the kernel.
4394c124 1977endchoice
92d2040d 1978
1da177e4
LT
1979config XIP_KERNEL
1980 bool "Kernel Execute-In-Place from ROM"
10968131 1981 depends on !ARM_LPAE && !ARCH_MULTIPLATFORM
1da177e4
LT
1982 help
1983 Execute-In-Place allows the kernel to run from non-volatile storage
1984 directly addressable by the CPU, such as NOR flash. This saves RAM
1985 space since the text section of the kernel is not loaded from flash
1986 to RAM. Read-write sections, such as the data section and stack,
1987 are still copied to RAM. The XIP kernel is not compressed since
1988 it has to run directly from flash, so it will take more space to
1989 store it. The flash address used to link the kernel object files,
1990 and for storing it, is configuration dependent. Therefore, if you
1991 say Y here, you must know the proper physical address where to
1992 store the kernel image depending on your own flash memory usage.
1993
1994 Also note that the make target becomes "make xipImage" rather than
1995 "make zImage" or "make Image". The final kernel binary to put in
1996 ROM memory will be arch/arm/boot/xipImage.
1997
1998 If unsure, say N.
1999
2000config XIP_PHYS_ADDR
2001 hex "XIP Kernel Physical Location"
2002 depends on XIP_KERNEL
2003 default "0x00080000"
2004 help
2005 This is the physical address in your flash memory the kernel will
2006 be linked for and stored to. This address is dependent on your
2007 own flash usage.
2008
c587e4a6
RP
2009config KEXEC
2010 bool "Kexec system call (EXPERIMENTAL)"
19ab428f 2011 depends on (!SMP || PM_SLEEP_SMP)
c587e4a6
RP
2012 help
2013 kexec is a system call that implements the ability to shutdown your
2014 current kernel, and to start another kernel. It is like a reboot
01dd2fbf 2015 but it is independent of the system firmware. And like a reboot
c587e4a6
RP
2016 you can start any kernel with it, not just Linux.
2017
2018 It is an ongoing process to be certain the hardware in a machine
2019 is properly shutdown, so do not be surprised if this code does not
bf220695 2020 initially work for you.
c587e4a6 2021
4cd9d6f7
RP
2022config ATAGS_PROC
2023 bool "Export atags in procfs"
bd51e2f5 2024 depends on ATAGS && KEXEC
b98d7291 2025 default y
4cd9d6f7
RP
2026 help
2027 Should the atags used to boot the kernel be exported in an "atags"
2028 file in procfs. Useful with kexec.
2029
cb5d39b3
MW
2030config CRASH_DUMP
2031 bool "Build kdump crash kernel (EXPERIMENTAL)"
cb5d39b3
MW
2032 help
2033 Generate crash dump after being started by kexec. This should
2034 be normally only set in special crash dump kernels which are
2035 loaded in the main kernel with kexec-tools into a specially
2036 reserved region and then later executed after a crash by
2037 kdump/kexec. The crash dump kernel must be compiled to a
2038 memory address not used by the main kernel
2039
2040 For more details see Documentation/kdump/kdump.txt
2041
e69edc79
EM
2042config AUTO_ZRELADDR
2043 bool "Auto calculation of the decompressed kernel image address"
e69edc79
EM
2044 help
2045 ZRELADDR is the physical address where the decompressed kernel
2046 image will be placed. If AUTO_ZRELADDR is selected, the address
2047 will be determined at run-time by masking the current IP with
2048 0xf8000000. This assumes the zImage being placed in the first 128MB
2049 from start of memory.
2050
1da177e4
LT
2051endmenu
2052
ac9d7efc 2053menu "CPU Power Management"
1da177e4 2054
1da177e4 2055source "drivers/cpufreq/Kconfig"
1da177e4 2056
ac9d7efc
RK
2057source "drivers/cpuidle/Kconfig"
2058
2059endmenu
2060
1da177e4
LT
2061menu "Floating point emulation"
2062
2063comment "At least one emulation must be selected"
2064
2065config FPE_NWFPE
2066 bool "NWFPE math emulation"
593c252a 2067 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
1da177e4
LT
2068 ---help---
2069 Say Y to include the NWFPE floating point emulator in the kernel.
2070 This is necessary to run most binaries. Linux does not currently
2071 support floating point hardware so you need to say Y here even if
2072 your machine has an FPA or floating point co-processor podule.
2073
2074 You may say N here if you are going to load the Acorn FPEmulator
2075 early in the bootup.
2076
2077config FPE_NWFPE_XP
2078 bool "Support extended precision"
bedf142b 2079 depends on FPE_NWFPE
1da177e4
LT
2080 help
2081 Say Y to include 80-bit support in the kernel floating-point
2082 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2083 Note that gcc does not generate 80-bit operations by default,
2084 so in most cases this option only enlarges the size of the
2085 floating point emulator without any good reason.
2086
2087 You almost surely want to say N here.
2088
2089config FPE_FASTFPE
2090 bool "FastFPE math emulation (EXPERIMENTAL)"
d6f94fa0 2091 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
1da177e4
LT
2092 ---help---
2093 Say Y here to include the FAST floating point emulator in the kernel.
2094 This is an experimental much faster emulator which now also has full
2095 precision for the mantissa. It does not support any exceptions.
2096 It is very simple, and approximately 3-6 times faster than NWFPE.
2097
2098 It should be sufficient for most programs. It may be not suitable
2099 for scientific calculations, but you have to check this for yourself.
2100 If you do not feel you need a faster FP emulation you should better
2101 choose NWFPE.
2102
2103config VFP
2104 bool "VFP-format floating point maths"
e399b1a4 2105 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
1da177e4
LT
2106 help
2107 Say Y to include VFP support code in the kernel. This is needed
2108 if your hardware includes a VFP unit.
2109
2110 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2111 release notes and additional status information.
2112
2113 Say N if your target does not have VFP hardware.
2114
25ebee02
CM
2115config VFPv3
2116 bool
2117 depends on VFP
2118 default y if CPU_V7
2119
b5872db4
CM
2120config NEON
2121 bool "Advanced SIMD (NEON) Extension support"
2122 depends on VFPv3 && CPU_V7
2123 help
2124 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2125 Extension.
2126
73c132c1
AB
2127config KERNEL_MODE_NEON
2128 bool "Support for NEON in kernel mode"
c4a30c3b 2129 depends on NEON && AEABI
73c132c1
AB
2130 help
2131 Say Y to include support for NEON in kernel mode.
2132
1da177e4
LT
2133endmenu
2134
2135menu "Userspace binary formats"
2136
2137source "fs/Kconfig.binfmt"
2138
1da177e4
LT
2139endmenu
2140
2141menu "Power management options"
2142
eceab4ac 2143source "kernel/power/Kconfig"
1da177e4 2144
f4cb5700 2145config ARCH_SUSPEND_POSSIBLE
19a0519d 2146 depends on CPU_ARM920T || CPU_ARM926T || CPU_FEROCEON || CPU_SA1100 || \
f0d75153 2147 CPU_V6 || CPU_V6K || CPU_V7 || CPU_V7M || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
f4cb5700
JB
2148 def_bool y
2149
15e0d9e3
AB
2150config ARM_CPU_SUSPEND
2151 def_bool PM_SLEEP
2152
603fb42a
SC
2153config ARCH_HIBERNATION_POSSIBLE
2154 bool
2155 depends on MMU
2156 default y if ARCH_SUSPEND_POSSIBLE
2157
1da177e4
LT
2158endmenu
2159
d5950b43
SR
2160source "net/Kconfig"
2161
ac25150f 2162source "drivers/Kconfig"
1da177e4 2163
916f743d
KG
2164source "drivers/firmware/Kconfig"
2165
1da177e4
LT
2166source "fs/Kconfig"
2167
1da177e4
LT
2168source "arch/arm/Kconfig.debug"
2169
2170source "security/Kconfig"
2171
2172source "crypto/Kconfig"
652ccae5
AB
2173if CRYPTO
2174source "arch/arm/crypto/Kconfig"
2175endif
1da177e4
LT
2176
2177source "lib/Kconfig"
749cf76c
CD
2178
2179source "arch/arm/kvm/Kconfig"
This page took 1.316077 seconds and 5 git commands to generate.