kexec: remove unnecessary KERN_ERR from kexec.c
[deliverable/linux.git] / arch / arm / Kconfig
CommitLineData
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
d7018848 8 select ARCH_MIGHT_HAVE_PC_PARPORT
4badad35 9 select ARCH_SUPPORTS_ATOMIC_RMW
017f161a 10 select ARCH_USE_BUILTIN_BSWAP
0cbad9c9 11 select ARCH_USE_CMPXCHG_LOCKREF
b1b3f49c 12 select ARCH_WANT_IPC_PARSE_VERSION
ee951c63 13 select BUILDTIME_EXTABLE_SORT if MMU
171b3f0d 14 select CLONE_BACKWARDS
b1b3f49c 15 select CPU_PM if (SUSPEND || CPU_IDLE)
dce5c9e3 16 select DCACHE_WORD_ACCESS if HAVE_EFFICIENT_UNALIGNED_ACCESS
36d0fd21 17 select GENERIC_ALLOCATOR
4477ca45 18 select GENERIC_ATOMIC64 if (CPU_V7M || CPU_V6 || !CPU_32v6K || !AEABI)
b1b3f49c 19 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
171b3f0d 20 select GENERIC_IDLE_POLL_SETUP
b1b3f49c
RK
21 select GENERIC_IRQ_PROBE
22 select GENERIC_IRQ_SHOW
b1b3f49c 23 select GENERIC_PCI_IOMAP
38ff87f7 24 select GENERIC_SCHED_CLOCK
b1b3f49c
RK
25 select GENERIC_SMP_IDLE_THREAD
26 select GENERIC_STRNCPY_FROM_USER
27 select GENERIC_STRNLEN_USER
a71b092a 28 select HANDLE_DOMAIN_IRQ
b1b3f49c 29 select HARDIRQS_SW_RESEND
7a017721 30 select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
09f05d85 31 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
5cbad0eb 32 select HAVE_ARCH_KGDB
91702175 33 select HAVE_ARCH_SECCOMP_FILTER if (AEABI && !OABI_COMPAT)
0693bf68 34 select HAVE_ARCH_TRACEHOOK
b1b3f49c 35 select HAVE_BPF_JIT
51aaf81f 36 select HAVE_CC_STACKPROTECTOR
171b3f0d 37 select HAVE_CONTEXT_TRACKING
b1b3f49c
RK
38 select HAVE_C_RECORDMCOUNT
39 select HAVE_DEBUG_KMEMLEAK
40 select HAVE_DMA_API_DEBUG
41 select HAVE_DMA_ATTRS
42 select HAVE_DMA_CONTIGUOUS if MMU
80be7a7f 43 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
dce5c9e3 44 select HAVE_EFFICIENT_UNALIGNED_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && MMU
b1b3f49c 45 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
0e341af8 46 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
b1b3f49c 47 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
1fe53268 48 select HAVE_GENERIC_DMA_COHERENT
b1b3f49c
RK
49 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
50 select HAVE_IDE if PCI || ISA || PCMCIA
87c46b6c 51 select HAVE_IRQ_TIME_ACCOUNTING
e7db7b42 52 select HAVE_KERNEL_GZIP
f9b493ac 53 select HAVE_KERNEL_LZ4
6e8699f7 54 select HAVE_KERNEL_LZMA
b1b3f49c 55 select HAVE_KERNEL_LZO
a7f464f3 56 select HAVE_KERNEL_XZ
b1b3f49c
RK
57 select HAVE_KPROBES if !XIP_KERNEL
58 select HAVE_KRETPROBES if (HAVE_KPROBES)
59 select HAVE_MEMBLOCK
171b3f0d 60 select HAVE_MOD_ARCH_SPECIFIC if ARM_UNWIND
b1b3f49c 61 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
7ada189f 62 select HAVE_PERF_EVENTS
49863894
WD
63 select HAVE_PERF_REGS
64 select HAVE_PERF_USER_STACK_DUMP
a0ad5496 65 select HAVE_RCU_TABLE_FREE if (SMP && ARM_LPAE)
e513f8bf 66 select HAVE_REGS_AND_STACK_ACCESS_API
b1b3f49c 67 select HAVE_SYSCALL_TRACEPOINTS
af1839eb 68 select HAVE_UID16
31c1fc81 69 select HAVE_VIRT_CPU_ACCOUNTING_GEN
da0ec6f7 70 select IRQ_FORCED_THREADING
171b3f0d 71 select MODULES_USE_ELF_REL
84f452b1 72 select NO_BOOTMEM
171b3f0d
RK
73 select OLD_SIGACTION
74 select OLD_SIGSUSPEND3
b1b3f49c
RK
75 select PERF_USE_VMALLOC
76 select RTC_LIB
77 select SYS_SUPPORTS_APM_EMULATION
171b3f0d
RK
78 # Above selects are sorted alphabetically; please add new ones
79 # according to that. Thanks.
1da177e4
LT
80 help
81 The ARM series is a line of low-power-consumption RISC chip designs
f6c8965a 82 licensed by ARM Ltd and targeted at embedded applications and
1da177e4 83 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
f6c8965a 84 manufactured, but legacy ARM-based PC hardware remains popular in
1da177e4
LT
85 Europe. There is an ARM Linux project with a web page at
86 <http://www.arm.linux.org.uk/>.
87
74facffe 88config ARM_HAS_SG_CHAIN
308c09f1 89 select ARCH_HAS_SG_CHAIN
74facffe
RK
90 bool
91
4ce63fcd
MS
92config NEED_SG_DMA_LENGTH
93 bool
94
95config ARM_DMA_USE_IOMMU
4ce63fcd 96 bool
b1b3f49c
RK
97 select ARM_HAS_SG_CHAIN
98 select NEED_SG_DMA_LENGTH
4ce63fcd 99
60460abf
SWK
100if ARM_DMA_USE_IOMMU
101
102config ARM_DMA_IOMMU_ALIGNMENT
103 int "Maximum PAGE_SIZE order of alignment for DMA IOMMU buffers"
104 range 4 9
105 default 8
106 help
107 DMA mapping framework by default aligns all buffers to the smallest
108 PAGE_SIZE order which is greater than or equal to the requested buffer
109 size. This works well for buffers up to a few hundreds kilobytes, but
110 for larger buffers it just a waste of address space. Drivers which has
111 relatively small addressing window (like 64Mib) might run out of
112 virtual space with just a few allocations.
113
114 With this parameter you can specify the maximum PAGE_SIZE order for
115 DMA IOMMU buffers. Larger buffers will be aligned only to this
116 specified order. The order is expressed as a power of two multiplied
117 by the PAGE_SIZE.
118
119endif
120
0b05da72
HUK
121config MIGHT_HAVE_PCI
122 bool
123
75e7153a
RB
124config SYS_SUPPORTS_APM_EMULATION
125 bool
126
bc581770
LW
127config HAVE_TCM
128 bool
129 select GENERIC_ALLOCATOR
130
e119bfff
RK
131config HAVE_PROC_CPU
132 bool
133
ce816fa8 134config NO_IOPORT_MAP
5ea81769 135 bool
5ea81769 136
1da177e4
LT
137config EISA
138 bool
139 ---help---
140 The Extended Industry Standard Architecture (EISA) bus was
141 developed as an open alternative to the IBM MicroChannel bus.
142
143 The EISA bus provided some of the features of the IBM MicroChannel
144 bus while maintaining backward compatibility with cards made for
145 the older ISA bus. The EISA bus saw limited use between 1988 and
146 1995 when it was made obsolete by the PCI bus.
147
148 Say Y here if you are building a kernel for an EISA-based machine.
149
150 Otherwise, say N.
151
152config SBUS
153 bool
154
f16fb1ec
RK
155config STACKTRACE_SUPPORT
156 bool
157 default y
158
f76e9154
NP
159config HAVE_LATENCYTOP_SUPPORT
160 bool
161 depends on !SMP
162 default y
163
f16fb1ec
RK
164config LOCKDEP_SUPPORT
165 bool
166 default y
167
7ad1bcb2
RK
168config TRACE_IRQFLAGS_SUPPORT
169 bool
170 default y
171
1da177e4
LT
172config RWSEM_XCHGADD_ALGORITHM
173 bool
8a87411b 174 default y
1da177e4 175
f0d1b0b3
DH
176config ARCH_HAS_ILOG2_U32
177 bool
f0d1b0b3
DH
178
179config ARCH_HAS_ILOG2_U64
180 bool
f0d1b0b3 181
4a1b5733
EV
182config ARCH_HAS_BANDGAP
183 bool
184
b89c3b16
AM
185config GENERIC_HWEIGHT
186 bool
187 default y
188
1da177e4
LT
189config GENERIC_CALIBRATE_DELAY
190 bool
191 default y
192
a08b6b79
Z
193config ARCH_MAY_HAVE_PC_FDC
194 bool
195
5ac6da66
CL
196config ZONE_DMA
197 bool
5ac6da66 198
ccd7ab7f
FT
199config NEED_DMA_MAP_STATE
200 def_bool y
201
c7edc9e3
DL
202config ARCH_SUPPORTS_UPROBES
203 def_bool y
204
58af4a24
RH
205config ARCH_HAS_DMA_SET_COHERENT_MASK
206 bool
207
1da177e4
LT
208config GENERIC_ISA_DMA
209 bool
210
1da177e4
LT
211config FIQ
212 bool
213
13a5045d
RH
214config NEED_RET_TO_USER
215 bool
216
034d2f5a
AV
217config ARCH_MTD_XIP
218 bool
219
c760fc19
HC
220config VECTORS_BASE
221 hex
6afd6fae 222 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
c760fc19
HC
223 default DRAM_BASE if REMAP_VECTORS_TO_RAM
224 default 0x00000000
225 help
19accfd3
RK
226 The base address of exception vectors. This must be two pages
227 in size.
c760fc19 228
dc21af99 229config ARM_PATCH_PHYS_VIRT
c1becedc
RK
230 bool "Patch physical to virtual translations at runtime" if EMBEDDED
231 default y
b511d75d 232 depends on !XIP_KERNEL && MMU
dc21af99
RK
233 depends on !ARCH_REALVIEW || !SPARSEMEM
234 help
111e9a5c
RK
235 Patch phys-to-virt and virt-to-phys translation functions at
236 boot and module load time according to the position of the
237 kernel in system memory.
dc21af99 238
111e9a5c 239 This can only be used with non-XIP MMU kernels where the base
daece596 240 of physical memory is at a 16MB boundary.
dc21af99 241
c1becedc
RK
242 Only disable this option if you know that you do not require
243 this feature (eg, building a kernel for a single machine) and
244 you need to shrink the kernel to the minimal size.
dc21af99 245
c334bc15
RH
246config NEED_MACH_IO_H
247 bool
248 help
249 Select this when mach/io.h is required to provide special
250 definitions for this platform. The need for mach/io.h should
251 be avoided when possible.
252
0cdc8b92 253config NEED_MACH_MEMORY_H
1b9f95f8
NP
254 bool
255 help
0cdc8b92
NP
256 Select this when mach/memory.h is required to provide special
257 definitions for this platform. The need for mach/memory.h should
258 be avoided when possible.
dc21af99 259
1b9f95f8 260config PHYS_OFFSET
974c0724 261 hex "Physical address of main memory" if MMU
c6f54a9b 262 depends on !ARM_PATCH_PHYS_VIRT
974c0724 263 default DRAM_BASE if !MMU
c6f54a9b
UKK
264 default 0x00000000 if ARCH_EBSA110 || \
265 EP93XX_SDCE3_SYNC_PHYS_OFFSET || \
266 ARCH_FOOTBRIDGE || \
267 ARCH_INTEGRATOR || \
268 ARCH_IOP13XX || \
269 ARCH_KS8695 || \
270 (ARCH_REALVIEW && !REALVIEW_HIGH_PHYS_OFFSET)
271 default 0x10000000 if ARCH_OMAP1 || ARCH_RPC
272 default 0x20000000 if ARCH_S5PV210
273 default 0x70000000 if REALVIEW_HIGH_PHYS_OFFSET
274 default 0xc0000000 if EP93XX_SDCE0_PHYS_OFFSET || ARCH_SA1100
275 default 0xd0000000 if EP93XX_SDCE1_PHYS_OFFSET
276 default 0xe0000000 if EP93XX_SDCE2_PHYS_OFFSET
277 default 0xf0000000 if EP93XX_SDCE3_ASYNC_PHYS_OFFSET
111e9a5c 278 help
1b9f95f8
NP
279 Please provide the physical address corresponding to the
280 location of main memory in your system.
cada3c08 281
87e040b6
SG
282config GENERIC_BUG
283 def_bool y
284 depends on BUG
285
1da177e4
LT
286source "init/Kconfig"
287
dc52ddc0
MH
288source "kernel/Kconfig.freezer"
289
1da177e4
LT
290menu "System Type"
291
3c427975
HC
292config MMU
293 bool "MMU-based Paged Memory Management Support"
294 default y
295 help
296 Select if you want MMU-based virtualised addressing space
297 support by paged memory management. If unsure, say 'Y'.
298
ccf50e23
RK
299#
300# The "ARM system type" choice list is ordered alphabetically by option
301# text. Please add new entries in the option alphabetic order.
302#
1da177e4
LT
303choice
304 prompt "ARM system type"
1420b22b
AB
305 default ARCH_VERSATILE if !MMU
306 default ARCH_MULTIPLATFORM if MMU
1da177e4 307
387798b3
RH
308config ARCH_MULTIPLATFORM
309 bool "Allow multiple platforms to be selected"
b1b3f49c 310 depends on MMU
ddb902cc 311 select ARCH_WANT_OPTIONAL_GPIOLIB
42dc836d 312 select ARM_HAS_SG_CHAIN
387798b3
RH
313 select ARM_PATCH_PHYS_VIRT
314 select AUTO_ZRELADDR
6d0add40 315 select CLKSRC_OF
66314223 316 select COMMON_CLK
ddb902cc 317 select GENERIC_CLOCKEVENTS
08d38beb 318 select MIGHT_HAVE_PCI
387798b3 319 select MULTI_IRQ_HANDLER
66314223
DN
320 select SPARSE_IRQ
321 select USE_OF
66314223 322
4af6fee1
DS
323config ARCH_REALVIEW
324 bool "ARM Ltd. RealView family"
b1b3f49c 325 select ARCH_WANT_OPTIONAL_GPIOLIB
4af6fee1 326 select ARM_AMBA
b1b3f49c 327 select ARM_TIMER_SP804
f9a6aa43
LW
328 select COMMON_CLK
329 select COMMON_CLK_VERSATILE
ae30ceac 330 select GENERIC_CLOCKEVENTS
b56ba8aa 331 select GPIO_PL061 if GPIOLIB
b1b3f49c 332 select ICST
0cdc8b92 333 select NEED_MACH_MEMORY_H
b1b3f49c 334 select PLAT_VERSATILE
81cc3f86 335 select PLAT_VERSATILE_SCHED_CLOCK
4af6fee1
DS
336 help
337 This enables support for ARM Ltd RealView boards.
338
339config ARCH_VERSATILE
340 bool "ARM Ltd. Versatile family"
b1b3f49c 341 select ARCH_WANT_OPTIONAL_GPIOLIB
4af6fee1 342 select ARM_AMBA
b1b3f49c 343 select ARM_TIMER_SP804
4af6fee1 344 select ARM_VIC
6d803ba7 345 select CLKDEV_LOOKUP
b1b3f49c 346 select GENERIC_CLOCKEVENTS
aa3831cf 347 select HAVE_MACH_CLKDEV
c5a0adb5 348 select ICST
f4b8b319 349 select PLAT_VERSATILE
b1b3f49c 350 select PLAT_VERSATILE_CLOCK
81cc3f86 351 select PLAT_VERSATILE_SCHED_CLOCK
2389d501 352 select VERSATILE_FPGA_IRQ
4af6fee1
DS
353 help
354 This enables support for ARM Ltd Versatile board.
355
8fc5ffa0
AV
356config ARCH_AT91
357 bool "Atmel AT91"
f373e8c0 358 select ARCH_REQUIRE_GPIOLIB
bd602995 359 select CLKDEV_LOOKUP
e261501d 360 select IRQ_DOMAIN
1ac02d79 361 select NEED_MACH_IO_H if PCCARD
6732ae5c 362 select PINCTRL
d48346c1
NF
363 select PINCTRL_AT91
364 select USE_OF
4af6fee1 365 help
929e994f 366 This enables support for systems based on Atmel
32963a8e 367 AT91RM9200, AT91SAM9 and SAMA5 processors.
4af6fee1 368
93e22567
RK
369config ARCH_CLPS711X
370 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
a3b8d4a5 371 select ARCH_REQUIRE_GPIOLIB
ea7d1bc9 372 select AUTO_ZRELADDR
c99f72ad 373 select CLKSRC_MMIO
93e22567
RK
374 select COMMON_CLK
375 select CPU_ARM720T
4a8355c4 376 select GENERIC_CLOCKEVENTS
6597619f 377 select MFD_SYSCON
e4e3a37d 378 select SOC_BUS
93e22567
RK
379 help
380 Support for Cirrus Logic 711x/721x/731x based boards.
381
788c9700
RK
382config ARCH_GEMINI
383 bool "Cortina Systems Gemini"
788c9700 384 select ARCH_REQUIRE_GPIOLIB
f3372c01 385 select CLKSRC_MMIO
b1b3f49c 386 select CPU_FA526
f3372c01 387 select GENERIC_CLOCKEVENTS
788c9700
RK
388 help
389 Support for the Cortina Systems Gemini family SoCs
390
1da177e4
LT
391config ARCH_EBSA110
392 bool "EBSA-110"
b1b3f49c 393 select ARCH_USES_GETTIMEOFFSET
c750815e 394 select CPU_SA110
f7e68bbf 395 select ISA
c334bc15 396 select NEED_MACH_IO_H
0cdc8b92 397 select NEED_MACH_MEMORY_H
ce816fa8 398 select NO_IOPORT_MAP
1da177e4
LT
399 help
400 This is an evaluation board for the StrongARM processor available
f6c8965a 401 from Digital. It has limited hardware on-board, including an
1da177e4
LT
402 Ethernet interface, two PCMCIA sockets, two serial ports and a
403 parallel port.
404
6d85e2b0
UKK
405config ARCH_EFM32
406 bool "Energy Micro efm32"
407 depends on !MMU
408 select ARCH_REQUIRE_GPIOLIB
409 select ARM_NVIC
51aaf81f 410 select AUTO_ZRELADDR
6d85e2b0
UKK
411 select CLKSRC_OF
412 select COMMON_CLK
413 select CPU_V7M
414 select GENERIC_CLOCKEVENTS
415 select NO_DMA
ce816fa8 416 select NO_IOPORT_MAP
6d85e2b0
UKK
417 select SPARSE_IRQ
418 select USE_OF
419 help
420 Support for Energy Micro's (now Silicon Labs) efm32 Giant Gecko
421 processors.
422
e7736d47
LB
423config ARCH_EP93XX
424 bool "EP93xx-based"
b1b3f49c
RK
425 select ARCH_HAS_HOLES_MEMORYMODEL
426 select ARCH_REQUIRE_GPIOLIB
427 select ARCH_USES_GETTIMEOFFSET
e7736d47
LB
428 select ARM_AMBA
429 select ARM_VIC
6d803ba7 430 select CLKDEV_LOOKUP
b1b3f49c 431 select CPU_ARM920T
e7736d47
LB
432 help
433 This enables support for the Cirrus EP93xx series of CPUs.
434
1da177e4
LT
435config ARCH_FOOTBRIDGE
436 bool "FootBridge"
c750815e 437 select CPU_SA110
1da177e4 438 select FOOTBRIDGE
4e8d7637 439 select GENERIC_CLOCKEVENTS
d0ee9f40 440 select HAVE_IDE
8ef6e620 441 select NEED_MACH_IO_H if !MMU
0cdc8b92 442 select NEED_MACH_MEMORY_H
f999b8bd
MM
443 help
444 Support for systems based on the DC21285 companion chip
445 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
1da177e4 446
4af6fee1
DS
447config ARCH_NETX
448 bool "Hilscher NetX based"
b1b3f49c 449 select ARM_VIC
234b6ced 450 select CLKSRC_MMIO
c750815e 451 select CPU_ARM926T
2fcfe6b8 452 select GENERIC_CLOCKEVENTS
f999b8bd 453 help
4af6fee1
DS
454 This enables support for systems based on the Hilscher NetX Soc
455
3b938be6
RK
456config ARCH_IOP13XX
457 bool "IOP13xx-based"
458 depends on MMU
b1b3f49c 459 select CPU_XSC3
0cdc8b92 460 select NEED_MACH_MEMORY_H
13a5045d 461 select NEED_RET_TO_USER
b1b3f49c
RK
462 select PCI
463 select PLAT_IOP
464 select VMSPLIT_1G
37ebbcff 465 select SPARSE_IRQ
3b938be6
RK
466 help
467 Support for Intel's IOP13XX (XScale) family of processors.
468
3f7e5815
LB
469config ARCH_IOP32X
470 bool "IOP32x-based"
a4f7e763 471 depends on MMU
b1b3f49c 472 select ARCH_REQUIRE_GPIOLIB
c750815e 473 select CPU_XSCALE
e9004f50 474 select GPIO_IOP
13a5045d 475 select NEED_RET_TO_USER
f7e68bbf 476 select PCI
b1b3f49c 477 select PLAT_IOP
f999b8bd 478 help
3f7e5815
LB
479 Support for Intel's 80219 and IOP32X (XScale) family of
480 processors.
481
482config ARCH_IOP33X
483 bool "IOP33x-based"
484 depends on MMU
b1b3f49c 485 select ARCH_REQUIRE_GPIOLIB
c750815e 486 select CPU_XSCALE
e9004f50 487 select GPIO_IOP
13a5045d 488 select NEED_RET_TO_USER
3f7e5815 489 select PCI
b1b3f49c 490 select PLAT_IOP
3f7e5815
LB
491 help
492 Support for Intel's IOP33X (XScale) family of processors.
1da177e4 493
3b938be6
RK
494config ARCH_IXP4XX
495 bool "IXP4xx-based"
a4f7e763 496 depends on MMU
58af4a24 497 select ARCH_HAS_DMA_SET_COHERENT_MASK
b1b3f49c 498 select ARCH_REQUIRE_GPIOLIB
51aaf81f 499 select ARCH_SUPPORTS_BIG_ENDIAN
234b6ced 500 select CLKSRC_MMIO
c750815e 501 select CPU_XSCALE
b1b3f49c 502 select DMABOUNCE if PCI
3b938be6 503 select GENERIC_CLOCKEVENTS
0b05da72 504 select MIGHT_HAVE_PCI
c334bc15 505 select NEED_MACH_IO_H
9296d94d 506 select USB_EHCI_BIG_ENDIAN_DESC
171b3f0d 507 select USB_EHCI_BIG_ENDIAN_MMIO
c4713074 508 help
3b938be6 509 Support for Intel's IXP4XX (XScale) family of processors.
c4713074 510
edabd38e
SB
511config ARCH_DOVE
512 bool "Marvell Dove"
edabd38e 513 select ARCH_REQUIRE_GPIOLIB
756b2531 514 select CPU_PJ4
edabd38e 515 select GENERIC_CLOCKEVENTS
0f81bd43 516 select MIGHT_HAVE_PCI
171b3f0d 517 select MVEBU_MBUS
9139acd1
SH
518 select PINCTRL
519 select PINCTRL_DOVE
abcda1dc 520 select PLAT_ORION_LEGACY
edabd38e
SB
521 help
522 Support for the Marvell Dove SoC 88AP510
523
794d15b2
SS
524config ARCH_MV78XX0
525 bool "Marvell MV78xx0"
a8865655 526 select ARCH_REQUIRE_GPIOLIB
b1b3f49c 527 select CPU_FEROCEON
794d15b2 528 select GENERIC_CLOCKEVENTS
171b3f0d 529 select MVEBU_MBUS
b1b3f49c 530 select PCI
abcda1dc 531 select PLAT_ORION_LEGACY
794d15b2
SS
532 help
533 Support for the following Marvell MV78xx0 series SoCs:
534 MV781x0, MV782x0.
535
9dd0b194 536config ARCH_ORION5X
585cf175
TP
537 bool "Marvell Orion"
538 depends on MMU
a8865655 539 select ARCH_REQUIRE_GPIOLIB
b1b3f49c 540 select CPU_FEROCEON
51cbff1d 541 select GENERIC_CLOCKEVENTS
171b3f0d 542 select MVEBU_MBUS
b1b3f49c 543 select PCI
abcda1dc 544 select PLAT_ORION_LEGACY
585cf175 545 help
9dd0b194 546 Support for the following Marvell Orion 5x series SoCs:
d2b2a6bb 547 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
d323ade1 548 Orion-2 (5281), Orion-1-90 (6183).
585cf175 549
788c9700 550config ARCH_MMP
2f7e8fae 551 bool "Marvell PXA168/910/MMP2"
788c9700 552 depends on MMU
788c9700 553 select ARCH_REQUIRE_GPIOLIB
6d803ba7 554 select CLKDEV_LOOKUP
b1b3f49c 555 select GENERIC_ALLOCATOR
788c9700 556 select GENERIC_CLOCKEVENTS
157d2644 557 select GPIO_PXA
c24b3114 558 select IRQ_DOMAIN
0f374561 559 select MULTI_IRQ_HANDLER
7c8f86a4 560 select PINCTRL
788c9700 561 select PLAT_PXA
0bd86961 562 select SPARSE_IRQ
788c9700 563 help
2f7e8fae 564 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
788c9700
RK
565
566config ARCH_KS8695
567 bool "Micrel/Kendin KS8695"
98830bc9 568 select ARCH_REQUIRE_GPIOLIB
c7e783d6 569 select CLKSRC_MMIO
b1b3f49c 570 select CPU_ARM922T
c7e783d6 571 select GENERIC_CLOCKEVENTS
b1b3f49c 572 select NEED_MACH_MEMORY_H
788c9700
RK
573 help
574 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
575 System-on-Chip devices.
576
788c9700
RK
577config ARCH_W90X900
578 bool "Nuvoton W90X900 CPU"
c52d3d68 579 select ARCH_REQUIRE_GPIOLIB
6d803ba7 580 select CLKDEV_LOOKUP
6fa5d5f7 581 select CLKSRC_MMIO
b1b3f49c 582 select CPU_ARM926T
58b5369e 583 select GENERIC_CLOCKEVENTS
788c9700 584 help
a8bc4ead 585 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
586 At present, the w90x900 has been renamed nuc900, regarding
587 the ARM series product line, you can login the following
588 link address to know more.
589
590 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
591 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
788c9700 592
93e22567
RK
593config ARCH_LPC32XX
594 bool "NXP LPC32XX"
595 select ARCH_REQUIRE_GPIOLIB
596 select ARM_AMBA
597 select CLKDEV_LOOKUP
598 select CLKSRC_MMIO
599 select CPU_ARM926T
600 select GENERIC_CLOCKEVENTS
601 select HAVE_IDE
93e22567
RK
602 select USE_OF
603 help
604 Support for the NXP LPC32XX family of processors
605
1da177e4 606config ARCH_PXA
2c8086a5 607 bool "PXA2xx/PXA3xx-based"
a4f7e763 608 depends on MMU
b1b3f49c
RK
609 select ARCH_MTD_XIP
610 select ARCH_REQUIRE_GPIOLIB
611 select ARM_CPU_SUSPEND if PM
612 select AUTO_ZRELADDR
6d803ba7 613 select CLKDEV_LOOKUP
234b6ced 614 select CLKSRC_MMIO
6f6caeaa 615 select CLKSRC_OF
981d0f39 616 select GENERIC_CLOCKEVENTS
157d2644 617 select GPIO_PXA
d0ee9f40 618 select HAVE_IDE
b1b3f49c 619 select MULTI_IRQ_HANDLER
b1b3f49c
RK
620 select PLAT_PXA
621 select SPARSE_IRQ
f999b8bd 622 help
2c8086a5 623 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
1da177e4 624
8fc1b0f8
KG
625config ARCH_MSM
626 bool "Qualcomm MSM (non-multiplatform)"
923a081c 627 select ARCH_REQUIRE_GPIOLIB
8cc7f533 628 select COMMON_CLK
b1b3f49c 629 select GENERIC_CLOCKEVENTS
49cbe786 630 help
4b53eb4f
DW
631 Support for Qualcomm MSM/QSD based systems. This runs on the
632 apps processor of the MSM/QSD and depends on a shared memory
633 interface to the modem processor which runs the baseband
634 stack and controls some vital subsystems
635 (clock and power control, etc).
49cbe786 636
bf98c1ea 637config ARCH_SHMOBILE_LEGACY
0d9fd616 638 bool "Renesas ARM SoCs (non-multiplatform)"
bf98c1ea 639 select ARCH_SHMOBILE
91942d17 640 select ARM_PATCH_PHYS_VIRT if MMU
5e93c6b4 641 select CLKDEV_LOOKUP
0ed82bc9 642 select CPU_V7
b1b3f49c 643 select GENERIC_CLOCKEVENTS
4c3ffffd 644 select HAVE_ARM_SCU if SMP
a894fcc2 645 select HAVE_ARM_TWD if SMP
aa3831cf 646 select HAVE_MACH_CLKDEV
3b55658a 647 select HAVE_SMP
ce5ea9f3 648 select MIGHT_HAVE_CACHE_L2X0
60f1435c 649 select MULTI_IRQ_HANDLER
ce816fa8 650 select NO_IOPORT_MAP
2cd3c927 651 select PINCTRL
b1b3f49c 652 select PM_GENERIC_DOMAINS if PM
0cdc23df 653 select SH_CLK_CPG
b1b3f49c 654 select SPARSE_IRQ
c793c1b0 655 help
0d9fd616
LP
656 Support for Renesas ARM SoC platforms using a non-multiplatform
657 kernel. This includes the SH-Mobile, R-Mobile, EMMA-Mobile, R-Car
658 and RZ families.
c793c1b0 659
1da177e4
LT
660config ARCH_RPC
661 bool "RiscPC"
662 select ARCH_ACORN
a08b6b79 663 select ARCH_MAY_HAVE_PC_FDC
07f841b7 664 select ARCH_SPARSEMEM_ENABLE
5cfc8ee0 665 select ARCH_USES_GETTIMEOFFSET
fa04e209 666 select CPU_SA110
b1b3f49c 667 select FIQ
d0ee9f40 668 select HAVE_IDE
b1b3f49c
RK
669 select HAVE_PATA_PLATFORM
670 select ISA_DMA_API
c334bc15 671 select NEED_MACH_IO_H
0cdc8b92 672 select NEED_MACH_MEMORY_H
ce816fa8 673 select NO_IOPORT_MAP
b4811bac 674 select VIRT_TO_BUS
1da177e4
LT
675 help
676 On the Acorn Risc-PC, Linux can support the internal IDE disk and
677 CD-ROM interface, serial and parallel port, and the floppy drive.
678
679config ARCH_SA1100
680 bool "SA1100-based"
b1b3f49c
RK
681 select ARCH_MTD_XIP
682 select ARCH_REQUIRE_GPIOLIB
683 select ARCH_SPARSEMEM_ENABLE
684 select CLKDEV_LOOKUP
685 select CLKSRC_MMIO
1937f5b9 686 select CPU_FREQ
b1b3f49c 687 select CPU_SA1100
3e238be2 688 select GENERIC_CLOCKEVENTS
d0ee9f40 689 select HAVE_IDE
b1b3f49c 690 select ISA
0cdc8b92 691 select NEED_MACH_MEMORY_H
375dec92 692 select SPARSE_IRQ
f999b8bd
MM
693 help
694 Support for StrongARM 11x0 based boards.
1da177e4 695
b130d5c2
KK
696config ARCH_S3C24XX
697 bool "Samsung S3C24XX SoCs"
53650430 698 select ARCH_REQUIRE_GPIOLIB
335cce74 699 select ATAGS
b1b3f49c 700 select CLKDEV_LOOKUP
4280506a 701 select CLKSRC_SAMSUNG_PWM
7f78b6eb 702 select GENERIC_CLOCKEVENTS
880cf071 703 select GPIO_SAMSUNG
20676c15 704 select HAVE_S3C2410_I2C if I2C
b130d5c2 705 select HAVE_S3C2410_WATCHDOG if WATCHDOG
b1b3f49c 706 select HAVE_S3C_RTC if RTC_CLASS
17453dd2 707 select MULTI_IRQ_HANDLER
c334bc15 708 select NEED_MACH_IO_H
cd8dc7ae 709 select SAMSUNG_ATAGS
1da177e4 710 help
b130d5c2
KK
711 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
712 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
713 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
714 Samsung SMDK2410 development board (and derivatives).
63b1f51b 715
a08ab637
BD
716config ARCH_S3C64XX
717 bool "Samsung S3C64XX"
b1b3f49c 718 select ARCH_REQUIRE_GPIOLIB
1db0287a 719 select ARM_AMBA
89f0ce72 720 select ARM_VIC
335cce74 721 select ATAGS
b1b3f49c 722 select CLKDEV_LOOKUP
4280506a 723 select CLKSRC_SAMSUNG_PWM
ccecba3c 724 select COMMON_CLK_SAMSUNG
70bacadb 725 select CPU_V6K
04a49b71 726 select GENERIC_CLOCKEVENTS
880cf071 727 select GPIO_SAMSUNG
b1b3f49c
RK
728 select HAVE_S3C2410_I2C if I2C
729 select HAVE_S3C2410_WATCHDOG if WATCHDOG
6700397a 730 select HAVE_TCM
ce816fa8 731 select NO_IOPORT_MAP
b1b3f49c 732 select PLAT_SAMSUNG
4ab75a3f 733 select PM_GENERIC_DOMAINS if PM
b1b3f49c
RK
734 select S3C_DEV_NAND
735 select S3C_GPIO_TRACK
cd8dc7ae 736 select SAMSUNG_ATAGS
6e2d9e93 737 select SAMSUNG_WAKEMASK
88f59738 738 select SAMSUNG_WDT_RESET
a08ab637
BD
739 help
740 Samsung S3C64XX series based systems
741
7c6337e2
KH
742config ARCH_DAVINCI
743 bool "TI DaVinci"
b1b3f49c 744 select ARCH_HAS_HOLES_MEMORYMODEL
dce1115b 745 select ARCH_REQUIRE_GPIOLIB
6d803ba7 746 select CLKDEV_LOOKUP
20e9969b 747 select GENERIC_ALLOCATOR
b1b3f49c 748 select GENERIC_CLOCKEVENTS
dc7ad3b3 749 select GENERIC_IRQ_CHIP
b1b3f49c 750 select HAVE_IDE
3ad7a42d 751 select TI_PRIV_EDMA
689e331f 752 select USE_OF
b1b3f49c 753 select ZONE_DMA
7c6337e2
KH
754 help
755 Support for TI's DaVinci platform.
756
a0694861
TL
757config ARCH_OMAP1
758 bool "TI OMAP1"
00a36698 759 depends on MMU
9af915da 760 select ARCH_HAS_HOLES_MEMORYMODEL
a0694861 761 select ARCH_OMAP
21f47fbc 762 select ARCH_REQUIRE_GPIOLIB
b1b3f49c 763 select CLKDEV_LOOKUP
d6e15d78 764 select CLKSRC_MMIO
b1b3f49c 765 select GENERIC_CLOCKEVENTS
a0694861 766 select GENERIC_IRQ_CHIP
a0694861
TL
767 select HAVE_IDE
768 select IRQ_DOMAIN
769 select NEED_MACH_IO_H if PCCARD
770 select NEED_MACH_MEMORY_H
21f47fbc 771 help
a0694861 772 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
02c981c0 773
1da177e4
LT
774endchoice
775
387798b3
RH
776menu "Multiple platform selection"
777 depends on ARCH_MULTIPLATFORM
778
779comment "CPU Core family selection"
780
f8afae40
AB
781config ARCH_MULTI_V4
782 bool "ARMv4 based platforms (FA526)"
783 depends on !ARCH_MULTI_V6_V7
784 select ARCH_MULTI_V4_V5
785 select CPU_FA526
786
387798b3
RH
787config ARCH_MULTI_V4T
788 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
387798b3 789 depends on !ARCH_MULTI_V6_V7
b1b3f49c 790 select ARCH_MULTI_V4_V5
24e860fb
AB
791 select CPU_ARM920T if !(CPU_ARM7TDMI || CPU_ARM720T || \
792 CPU_ARM740T || CPU_ARM9TDMI || CPU_ARM922T || \
793 CPU_ARM925T || CPU_ARM940T)
387798b3
RH
794
795config ARCH_MULTI_V5
796 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
387798b3 797 depends on !ARCH_MULTI_V6_V7
b1b3f49c 798 select ARCH_MULTI_V4_V5
12567bbd 799 select CPU_ARM926T if !(CPU_ARM946E || CPU_ARM1020 || \
24e860fb
AB
800 CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || \
801 CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_FEROCEON)
387798b3
RH
802
803config ARCH_MULTI_V4_V5
804 bool
805
806config ARCH_MULTI_V6
8dda05cc 807 bool "ARMv6 based platforms (ARM11)"
387798b3 808 select ARCH_MULTI_V6_V7
42f4754a 809 select CPU_V6K
387798b3
RH
810
811config ARCH_MULTI_V7
8dda05cc 812 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
387798b3
RH
813 default y
814 select ARCH_MULTI_V6_V7
b1b3f49c 815 select CPU_V7
90bc8ac7 816 select HAVE_SMP
387798b3
RH
817
818config ARCH_MULTI_V6_V7
819 bool
9352b05b 820 select MIGHT_HAVE_CACHE_L2X0
387798b3
RH
821
822config ARCH_MULTI_CPU_AUTO
823 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
824 select ARCH_MULTI_V5
825
826endmenu
827
05e2a3de
RH
828config ARCH_VIRT
829 bool "Dummy Virtual Machine" if ARCH_MULTI_V7
4b8b5f25 830 select ARM_AMBA
05e2a3de 831 select ARM_GIC
05e2a3de 832 select ARM_PSCI
4b8b5f25 833 select HAVE_ARM_ARCH_TIMER
05e2a3de 834
ccf50e23
RK
835#
836# This is sorted alphabetically by mach-* pathname. However, plat-*
837# Kconfigs may be included either alphabetically (according to the
838# plat- suffix) or along side the corresponding mach-* source.
839#
3e93a22b
GC
840source "arch/arm/mach-mvebu/Kconfig"
841
d9bfc86d
OR
842source "arch/arm/mach-asm9260/Kconfig"
843
95b8f20f
RK
844source "arch/arm/mach-at91/Kconfig"
845
1d22924e
AB
846source "arch/arm/mach-axxia/Kconfig"
847
8ac49e04
CD
848source "arch/arm/mach-bcm/Kconfig"
849
1c37fa10
SH
850source "arch/arm/mach-berlin/Kconfig"
851
1da177e4
LT
852source "arch/arm/mach-clps711x/Kconfig"
853
d94f944e
AV
854source "arch/arm/mach-cns3xxx/Kconfig"
855
95b8f20f
RK
856source "arch/arm/mach-davinci/Kconfig"
857
858source "arch/arm/mach-dove/Kconfig"
859
e7736d47
LB
860source "arch/arm/mach-ep93xx/Kconfig"
861
1da177e4
LT
862source "arch/arm/mach-footbridge/Kconfig"
863
59d3a193
PZ
864source "arch/arm/mach-gemini/Kconfig"
865
387798b3
RH
866source "arch/arm/mach-highbank/Kconfig"
867
389ee0c2
HZ
868source "arch/arm/mach-hisi/Kconfig"
869
1da177e4
LT
870source "arch/arm/mach-integrator/Kconfig"
871
3f7e5815
LB
872source "arch/arm/mach-iop32x/Kconfig"
873
874source "arch/arm/mach-iop33x/Kconfig"
1da177e4 875
285f5fa7
DW
876source "arch/arm/mach-iop13xx/Kconfig"
877
1da177e4
LT
878source "arch/arm/mach-ixp4xx/Kconfig"
879
828989ad
SS
880source "arch/arm/mach-keystone/Kconfig"
881
95b8f20f
RK
882source "arch/arm/mach-ks8695/Kconfig"
883
3b8f5030
CC
884source "arch/arm/mach-meson/Kconfig"
885
95b8f20f
RK
886source "arch/arm/mach-msm/Kconfig"
887
17723fd3
JJ
888source "arch/arm/mach-moxart/Kconfig"
889
794d15b2
SS
890source "arch/arm/mach-mv78xx0/Kconfig"
891
3995eb82 892source "arch/arm/mach-imx/Kconfig"
1da177e4 893
f682a218
MB
894source "arch/arm/mach-mediatek/Kconfig"
895
1d3f33d5
SG
896source "arch/arm/mach-mxs/Kconfig"
897
95b8f20f 898source "arch/arm/mach-netx/Kconfig"
49cbe786 899
95b8f20f 900source "arch/arm/mach-nomadik/Kconfig"
95b8f20f 901
9851ca57
DT
902source "arch/arm/mach-nspire/Kconfig"
903
d48af15e
TL
904source "arch/arm/plat-omap/Kconfig"
905
906source "arch/arm/mach-omap1/Kconfig"
1da177e4 907
1dbae815
TL
908source "arch/arm/mach-omap2/Kconfig"
909
9dd0b194 910source "arch/arm/mach-orion5x/Kconfig"
585cf175 911
387798b3
RH
912source "arch/arm/mach-picoxcell/Kconfig"
913
95b8f20f
RK
914source "arch/arm/mach-pxa/Kconfig"
915source "arch/arm/plat-pxa/Kconfig"
585cf175 916
95b8f20f
RK
917source "arch/arm/mach-mmp/Kconfig"
918
8fc1b0f8
KG
919source "arch/arm/mach-qcom/Kconfig"
920
95b8f20f
RK
921source "arch/arm/mach-realview/Kconfig"
922
d63dc051
HS
923source "arch/arm/mach-rockchip/Kconfig"
924
95b8f20f 925source "arch/arm/mach-sa1100/Kconfig"
edabd38e 926
387798b3
RH
927source "arch/arm/mach-socfpga/Kconfig"
928
a7ed099f 929source "arch/arm/mach-spear/Kconfig"
a21765a7 930
65ebcc11
SK
931source "arch/arm/mach-sti/Kconfig"
932
85fd6d63 933source "arch/arm/mach-s3c24xx/Kconfig"
1da177e4 934
431107ea 935source "arch/arm/mach-s3c64xx/Kconfig"
a08ab637 936
170f4e42
KK
937source "arch/arm/mach-s5pv210/Kconfig"
938
83014579 939source "arch/arm/mach-exynos/Kconfig"
e509b289 940source "arch/arm/plat-samsung/Kconfig"
cc0e72b8 941
882d01f9 942source "arch/arm/mach-shmobile/Kconfig"
52c543f9 943
3b52634f
MR
944source "arch/arm/mach-sunxi/Kconfig"
945
156a0997
BS
946source "arch/arm/mach-prima2/Kconfig"
947
c5f80065
EG
948source "arch/arm/mach-tegra/Kconfig"
949
95b8f20f 950source "arch/arm/mach-u300/Kconfig"
1da177e4 951
95b8f20f 952source "arch/arm/mach-ux500/Kconfig"
1da177e4
LT
953
954source "arch/arm/mach-versatile/Kconfig"
955
ceade897 956source "arch/arm/mach-vexpress/Kconfig"
420c34e4 957source "arch/arm/plat-versatile/Kconfig"
ceade897 958
6f35f9a9
TP
959source "arch/arm/mach-vt8500/Kconfig"
960
7ec80ddf 961source "arch/arm/mach-w90x900/Kconfig"
962
9a45eb69
JC
963source "arch/arm/mach-zynq/Kconfig"
964
1da177e4
LT
965# Definitions to make life easier
966config ARCH_ACORN
967 bool
968
7ae1f7ec
LB
969config PLAT_IOP
970 bool
469d3044 971 select GENERIC_CLOCKEVENTS
7ae1f7ec 972
69b02f6a
LB
973config PLAT_ORION
974 bool
bfe45e0b 975 select CLKSRC_MMIO
b1b3f49c 976 select COMMON_CLK
dc7ad3b3 977 select GENERIC_IRQ_CHIP
278b45b0 978 select IRQ_DOMAIN
69b02f6a 979
abcda1dc
TP
980config PLAT_ORION_LEGACY
981 bool
982 select PLAT_ORION
983
bd5ce433
EM
984config PLAT_PXA
985 bool
986
f4b8b319
RK
987config PLAT_VERSATILE
988 bool
989
e3887714
RK
990config ARM_TIMER_SP804
991 bool
bfe45e0b 992 select CLKSRC_MMIO
7a0eca71 993 select CLKSRC_OF if OF
e3887714 994
d9a1beaa
AC
995source "arch/arm/firmware/Kconfig"
996
1da177e4
LT
997source arch/arm/mm/Kconfig
998
afe4b25e 999config IWMMXT
d93003e8
SH
1000 bool "Enable iWMMXt support"
1001 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4 || CPU_PJ4B
1002 default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4 || CPU_PJ4B
afe4b25e
LB
1003 help
1004 Enable support for iWMMXt context switching at run time if
1005 running on a CPU that supports it.
1006
52108641 1007config MULTI_IRQ_HANDLER
1008 bool
1009 help
1010 Allow each machine to specify it's own IRQ handler at run time.
1011
3b93e7b0
HC
1012if !MMU
1013source "arch/arm/Kconfig-nommu"
1014endif
1015
3e0a07f8
GC
1016config PJ4B_ERRATA_4742
1017 bool "PJ4B Errata 4742: IDLE Wake Up Commands can Cause the CPU Core to Cease Operation"
1018 depends on CPU_PJ4B && MACH_ARMADA_370
1019 default y
1020 help
1021 When coming out of either a Wait for Interrupt (WFI) or a Wait for
1022 Event (WFE) IDLE states, a specific timing sensitivity exists between
1023 the retiring WFI/WFE instructions and the newly issued subsequent
1024 instructions. This sensitivity can result in a CPU hang scenario.
1025 Workaround:
1026 The software must insert either a Data Synchronization Barrier (DSB)
1027 or Data Memory Barrier (DMB) command immediately after the WFI/WFE
1028 instruction
1029
f0c4b8d6
WD
1030config ARM_ERRATA_326103
1031 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1032 depends on CPU_V6
1033 help
1034 Executing a SWP instruction to read-only memory does not set bit 11
1035 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1036 treat the access as a read, preventing a COW from occurring and
1037 causing the faulting task to livelock.
1038
9cba3ccc
CM
1039config ARM_ERRATA_411920
1040 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
e399b1a4 1041 depends on CPU_V6 || CPU_V6K
9cba3ccc
CM
1042 help
1043 Invalidation of the Instruction Cache operation can
1044 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1045 It does not affect the MPCore. This option enables the ARM Ltd.
1046 recommended workaround.
1047
7ce236fc
CM
1048config ARM_ERRATA_430973
1049 bool "ARM errata: Stale prediction on replaced interworking branch"
1050 depends on CPU_V7
1051 help
1052 This option enables the workaround for the 430973 Cortex-A8
1053 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1054 interworking branch is replaced with another code sequence at the
1055 same virtual address, whether due to self-modifying code or virtual
1056 to physical address re-mapping, Cortex-A8 does not recover from the
1057 stale interworking branch prediction. This results in Cortex-A8
1058 executing the new code sequence in the incorrect ARM or Thumb state.
1059 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1060 and also flushes the branch target cache at every context switch.
1061 Note that setting specific bits in the ACTLR register may not be
1062 available in non-secure mode.
1063
855c551f
CM
1064config ARM_ERRATA_458693
1065 bool "ARM errata: Processor deadlock when a false hazard is created"
1066 depends on CPU_V7
62e4d357 1067 depends on !ARCH_MULTIPLATFORM
855c551f
CM
1068 help
1069 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1070 erratum. For very specific sequences of memory operations, it is
1071 possible for a hazard condition intended for a cache line to instead
1072 be incorrectly associated with a different cache line. This false
1073 hazard might then cause a processor deadlock. The workaround enables
1074 the L1 caching of the NEON accesses and disables the PLD instruction
1075 in the ACTLR register. Note that setting specific bits in the ACTLR
1076 register may not be available in non-secure mode.
1077
0516e464
CM
1078config ARM_ERRATA_460075
1079 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1080 depends on CPU_V7
62e4d357 1081 depends on !ARCH_MULTIPLATFORM
0516e464
CM
1082 help
1083 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1084 erratum. Any asynchronous access to the L2 cache may encounter a
1085 situation in which recent store transactions to the L2 cache are lost
1086 and overwritten with stale memory contents from external memory. The
1087 workaround disables the write-allocate mode for the L2 cache via the
1088 ACTLR register. Note that setting specific bits in the ACTLR register
1089 may not be available in non-secure mode.
1090
9f05027c
WD
1091config ARM_ERRATA_742230
1092 bool "ARM errata: DMB operation may be faulty"
1093 depends on CPU_V7 && SMP
62e4d357 1094 depends on !ARCH_MULTIPLATFORM
9f05027c
WD
1095 help
1096 This option enables the workaround for the 742230 Cortex-A9
1097 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1098 between two write operations may not ensure the correct visibility
1099 ordering of the two writes. This workaround sets a specific bit in
1100 the diagnostic register of the Cortex-A9 which causes the DMB
1101 instruction to behave as a DSB, ensuring the correct behaviour of
1102 the two writes.
1103
a672e99b
WD
1104config ARM_ERRATA_742231
1105 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1106 depends on CPU_V7 && SMP
62e4d357 1107 depends on !ARCH_MULTIPLATFORM
a672e99b
WD
1108 help
1109 This option enables the workaround for the 742231 Cortex-A9
1110 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1111 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1112 accessing some data located in the same cache line, may get corrupted
1113 data due to bad handling of the address hazard when the line gets
1114 replaced from one of the CPUs at the same time as another CPU is
1115 accessing it. This workaround sets specific bits in the diagnostic
1116 register of the Cortex-A9 which reduces the linefill issuing
1117 capabilities of the processor.
1118
69155794
JM
1119config ARM_ERRATA_643719
1120 bool "ARM errata: LoUIS bit field in CLIDR register is incorrect"
1121 depends on CPU_V7 && SMP
1122 help
1123 This option enables the workaround for the 643719 Cortex-A9 (prior to
1124 r1p0) erratum. On affected cores the LoUIS bit field of the CLIDR
1125 register returns zero when it should return one. The workaround
1126 corrects this value, ensuring cache maintenance operations which use
1127 it behave as intended and avoiding data corruption.
1128
cdf357f1
WD
1129config ARM_ERRATA_720789
1130 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
e66dc745 1131 depends on CPU_V7
cdf357f1
WD
1132 help
1133 This option enables the workaround for the 720789 Cortex-A9 (prior to
1134 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1135 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1136 As a consequence of this erratum, some TLB entries which should be
1137 invalidated are not, resulting in an incoherency in the system page
1138 tables. The workaround changes the TLB flushing routines to invalidate
1139 entries regardless of the ASID.
475d92fc
WD
1140
1141config ARM_ERRATA_743622
1142 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1143 depends on CPU_V7
62e4d357 1144 depends on !ARCH_MULTIPLATFORM
475d92fc
WD
1145 help
1146 This option enables the workaround for the 743622 Cortex-A9
efbc74ac 1147 (r2p*) erratum. Under very rare conditions, a faulty
475d92fc
WD
1148 optimisation in the Cortex-A9 Store Buffer may lead to data
1149 corruption. This workaround sets a specific bit in the diagnostic
1150 register of the Cortex-A9 which disables the Store Buffer
1151 optimisation, preventing the defect from occurring. This has no
1152 visible impact on the overall performance or power consumption of the
1153 processor.
1154
9a27c27c
WD
1155config ARM_ERRATA_751472
1156 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
ba90c516 1157 depends on CPU_V7
62e4d357 1158 depends on !ARCH_MULTIPLATFORM
9a27c27c
WD
1159 help
1160 This option enables the workaround for the 751472 Cortex-A9 (prior
1161 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1162 completion of a following broadcasted operation if the second
1163 operation is received by a CPU before the ICIALLUIS has completed,
1164 potentially leading to corrupted entries in the cache or TLB.
1165
fcbdc5fe
WD
1166config ARM_ERRATA_754322
1167 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1168 depends on CPU_V7
1169 help
1170 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1171 r3p*) erratum. A speculative memory access may cause a page table walk
1172 which starts prior to an ASID switch but completes afterwards. This
1173 can populate the micro-TLB with a stale entry which may be hit with
1174 the new ASID. This workaround places two dsb instructions in the mm
1175 switching code so that no page table walks can cross the ASID switch.
1176
5dab26af
WD
1177config ARM_ERRATA_754327
1178 bool "ARM errata: no automatic Store Buffer drain"
1179 depends on CPU_V7 && SMP
1180 help
1181 This option enables the workaround for the 754327 Cortex-A9 (prior to
1182 r2p0) erratum. The Store Buffer does not have any automatic draining
1183 mechanism and therefore a livelock may occur if an external agent
1184 continuously polls a memory location waiting to observe an update.
1185 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1186 written polling loops from denying visibility of updates to memory.
1187
145e10e1
CM
1188config ARM_ERRATA_364296
1189 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
fd832478 1190 depends on CPU_V6
145e10e1
CM
1191 help
1192 This options enables the workaround for the 364296 ARM1136
1193 r0p2 erratum (possible cache data corruption with
1194 hit-under-miss enabled). It sets the undocumented bit 31 in
1195 the auxiliary control register and the FI bit in the control
1196 register, thus disabling hit-under-miss without putting the
1197 processor into full low interrupt latency mode. ARM11MPCore
1198 is not affected.
1199
f630c1bd
WD
1200config ARM_ERRATA_764369
1201 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1202 depends on CPU_V7 && SMP
1203 help
1204 This option enables the workaround for erratum 764369
1205 affecting Cortex-A9 MPCore with two or more processors (all
1206 current revisions). Under certain timing circumstances, a data
1207 cache line maintenance operation by MVA targeting an Inner
1208 Shareable memory region may fail to proceed up to either the
1209 Point of Coherency or to the Point of Unification of the
1210 system. This workaround adds a DSB instruction before the
1211 relevant cache maintenance functions and sets a specific bit
1212 in the diagnostic control register of the SCU.
1213
7253b85c
SH
1214config ARM_ERRATA_775420
1215 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1216 depends on CPU_V7
1217 help
1218 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1219 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1220 operation aborts with MMU exception, it might cause the processor
1221 to deadlock. This workaround puts DSB before executing ISB if
1222 an abort may occur on cache maintenance.
1223
93dc6887
CM
1224config ARM_ERRATA_798181
1225 bool "ARM errata: TLBI/DSB failure on Cortex-A15"
1226 depends on CPU_V7 && SMP
1227 help
1228 On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
1229 adequately shooting down all use of the old entries. This
1230 option enables the Linux kernel workaround for this erratum
1231 which sends an IPI to the CPUs that are running the same ASID
1232 as the one being invalidated.
1233
84b6504f
WD
1234config ARM_ERRATA_773022
1235 bool "ARM errata: incorrect instructions may be executed from loop buffer"
1236 depends on CPU_V7
1237 help
1238 This option enables the workaround for the 773022 Cortex-A15
1239 (up to r0p4) erratum. In certain rare sequences of code, the
1240 loop buffer may deliver incorrect instructions. This
1241 workaround disables the loop buffer to avoid the erratum.
1242
1da177e4
LT
1243endmenu
1244
1245source "arch/arm/common/Kconfig"
1246
1da177e4
LT
1247menu "Bus support"
1248
1da177e4
LT
1249config ISA
1250 bool
1da177e4
LT
1251 help
1252 Find out whether you have ISA slots on your motherboard. ISA is the
1253 name of a bus system, i.e. the way the CPU talks to the other stuff
1254 inside your box. Other bus systems are PCI, EISA, MicroChannel
1255 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1256 newer boards don't support it. If you have ISA, say Y, otherwise N.
1257
065909b9 1258# Select ISA DMA controller support
1da177e4
LT
1259config ISA_DMA
1260 bool
065909b9 1261 select ISA_DMA_API
1da177e4 1262
065909b9 1263# Select ISA DMA interface
5cae841b
AV
1264config ISA_DMA_API
1265 bool
5cae841b 1266
1da177e4 1267config PCI
0b05da72 1268 bool "PCI support" if MIGHT_HAVE_PCI
1da177e4
LT
1269 help
1270 Find out whether you have a PCI motherboard. PCI is the name of a
1271 bus system, i.e. the way the CPU talks to the other stuff inside
1272 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1273 VESA. If you have PCI, say Y, otherwise N.
1274
52882173
AV
1275config PCI_DOMAINS
1276 bool
1277 depends on PCI
1278
b080ac8a
MRJ
1279config PCI_NANOENGINE
1280 bool "BSE nanoEngine PCI support"
1281 depends on SA1100_NANOENGINE
1282 help
1283 Enable PCI on the BSE nanoEngine board.
1284
36e23590
MW
1285config PCI_SYSCALL
1286 def_bool PCI
1287
a0113a99
MR
1288config PCI_HOST_ITE8152
1289 bool
1290 depends on PCI && MACH_ARMCORE
1291 default y
1292 select DMABOUNCE
1293
1da177e4 1294source "drivers/pci/Kconfig"
3f06d157 1295source "drivers/pci/pcie/Kconfig"
1da177e4
LT
1296
1297source "drivers/pcmcia/Kconfig"
1298
1299endmenu
1300
1301menu "Kernel Features"
1302
3b55658a
DM
1303config HAVE_SMP
1304 bool
1305 help
1306 This option should be selected by machines which have an SMP-
1307 capable CPU.
1308
1309 The only effect of this option is to make the SMP-related
1310 options available to the user for configuration.
1311
1da177e4 1312config SMP
bb2d8130 1313 bool "Symmetric Multi-Processing"
fbb4ddac 1314 depends on CPU_V6K || CPU_V7
bc28248e 1315 depends on GENERIC_CLOCKEVENTS
3b55658a 1316 depends on HAVE_SMP
801bb21c 1317 depends on MMU || ARM_MPU
1da177e4
LT
1318 help
1319 This enables support for systems with more than one CPU. If you have
4a474157
RG
1320 a system with only one CPU, say N. If you have a system with more
1321 than one CPU, say Y.
1da177e4 1322
4a474157 1323 If you say N here, the kernel will run on uni- and multiprocessor
1da177e4 1324 machines, but will use only one CPU of a multiprocessor machine. If
4a474157
RG
1325 you say Y here, the kernel will run on many, but not all,
1326 uniprocessor machines. On a uniprocessor machine, the kernel
1327 will run faster if you say N here.
1da177e4 1328
395cf969 1329 See also <file:Documentation/x86/i386/IO-APIC.txt>,
1da177e4 1330 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
50a23e6e 1331 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
1da177e4
LT
1332
1333 If you don't know what to do here, say N.
1334
f00ec48f
RK
1335config SMP_ON_UP
1336 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
801bb21c 1337 depends on SMP && !XIP_KERNEL && MMU
f00ec48f
RK
1338 default y
1339 help
1340 SMP kernels contain instructions which fail on non-SMP processors.
1341 Enabling this option allows the kernel to modify itself to make
1342 these instructions safe. Disabling it allows about 1K of space
1343 savings.
1344
1345 If you don't know what to do here, say Y.
1346
c9018aab
VG
1347config ARM_CPU_TOPOLOGY
1348 bool "Support cpu topology definition"
1349 depends on SMP && CPU_V7
1350 default y
1351 help
1352 Support ARM cpu topology definition. The MPIDR register defines
1353 affinity between processors which is then used to describe the cpu
1354 topology of an ARM System.
1355
1356config SCHED_MC
1357 bool "Multi-core scheduler support"
1358 depends on ARM_CPU_TOPOLOGY
1359 help
1360 Multi-core scheduler support improves the CPU scheduler's decision
1361 making when dealing with multi-core CPU chips at a cost of slightly
1362 increased overhead in some places. If unsure say N here.
1363
1364config SCHED_SMT
1365 bool "SMT scheduler support"
1366 depends on ARM_CPU_TOPOLOGY
1367 help
1368 Improves the CPU scheduler's decision making when dealing with
1369 MultiThreading at a cost of slightly increased overhead in some
1370 places. If unsure say N here.
1371
a8cbcd92
RK
1372config HAVE_ARM_SCU
1373 bool
a8cbcd92
RK
1374 help
1375 This option enables support for the ARM system coherency unit
1376
8a4da6e3 1377config HAVE_ARM_ARCH_TIMER
022c03a2
MZ
1378 bool "Architected timer support"
1379 depends on CPU_V7
8a4da6e3 1380 select ARM_ARCH_TIMER
0c403462 1381 select GENERIC_CLOCKEVENTS
022c03a2
MZ
1382 help
1383 This option enables support for the ARM architected timer
1384
f32f4ce2
RK
1385config HAVE_ARM_TWD
1386 bool
1387 depends on SMP
da4a686a 1388 select CLKSRC_OF if OF
f32f4ce2
RK
1389 help
1390 This options enables support for the ARM timer and watchdog unit
1391
e8db288e
NP
1392config MCPM
1393 bool "Multi-Cluster Power Management"
1394 depends on CPU_V7 && SMP
1395 help
1396 This option provides the common power management infrastructure
1397 for (multi-)cluster based systems, such as big.LITTLE based
1398 systems.
1399
ebf4a5c5
HZ
1400config MCPM_QUAD_CLUSTER
1401 bool
1402 depends on MCPM
1403 help
1404 To avoid wasting resources unnecessarily, MCPM only supports up
1405 to 2 clusters by default.
1406 Platforms with 3 or 4 clusters that use MCPM must select this
1407 option to allow the additional clusters to be managed.
1408
1c33be57
NP
1409config BIG_LITTLE
1410 bool "big.LITTLE support (Experimental)"
1411 depends on CPU_V7 && SMP
1412 select MCPM
1413 help
1414 This option enables support selections for the big.LITTLE
1415 system architecture.
1416
1417config BL_SWITCHER
1418 bool "big.LITTLE switcher support"
1419 depends on BIG_LITTLE && MCPM && HOTPLUG_CPU
1c33be57 1420 select ARM_CPU_SUSPEND
51aaf81f 1421 select CPU_PM
1c33be57
NP
1422 help
1423 The big.LITTLE "switcher" provides the core functionality to
1424 transparently handle transition between a cluster of A15's
1425 and a cluster of A7's in a big.LITTLE system.
1426
b22537c6
NP
1427config BL_SWITCHER_DUMMY_IF
1428 tristate "Simple big.LITTLE switcher user interface"
1429 depends on BL_SWITCHER && DEBUG_KERNEL
1430 help
1431 This is a simple and dummy char dev interface to control
1432 the big.LITTLE switcher core code. It is meant for
1433 debugging purposes only.
1434
8d5796d2
LB
1435choice
1436 prompt "Memory split"
006fa259 1437 depends on MMU
8d5796d2
LB
1438 default VMSPLIT_3G
1439 help
1440 Select the desired split between kernel and user memory.
1441
1442 If you are not absolutely sure what you are doing, leave this
1443 option alone!
1444
1445 config VMSPLIT_3G
1446 bool "3G/1G user/kernel split"
1447 config VMSPLIT_2G
1448 bool "2G/2G user/kernel split"
1449 config VMSPLIT_1G
1450 bool "1G/3G user/kernel split"
1451endchoice
1452
1453config PAGE_OFFSET
1454 hex
006fa259 1455 default PHYS_OFFSET if !MMU
8d5796d2
LB
1456 default 0x40000000 if VMSPLIT_1G
1457 default 0x80000000 if VMSPLIT_2G
1458 default 0xC0000000
1459
1da177e4
LT
1460config NR_CPUS
1461 int "Maximum number of CPUs (2-32)"
1462 range 2 32
1463 depends on SMP
1464 default "4"
1465
a054a811 1466config HOTPLUG_CPU
00b7dede 1467 bool "Support for hot-pluggable CPUs"
40b31360 1468 depends on SMP
a054a811
RK
1469 help
1470 Say Y here to experiment with turning CPUs off and on. CPUs
1471 can be controlled through /sys/devices/system/cpu.
1472
2bdd424f
WD
1473config ARM_PSCI
1474 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1475 depends on CPU_V7
1476 help
1477 Say Y here if you want Linux to communicate with system firmware
1478 implementing the PSCI specification for CPU-centric power
1479 management operations described in ARM document number ARM DEN
1480 0022A ("Power State Coordination Interface System Software on
1481 ARM processors").
1482
2a6ad871
MR
1483# The GPIO number here must be sorted by descending number. In case of
1484# a multiplatform kernel, we just want the highest value required by the
1485# selected platforms.
44986ab0
PDSN
1486config ARCH_NR_GPIO
1487 int
3dea19e8 1488 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
aa42587a
TF
1489 default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || \
1490 SOC_DRA7XX || ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210
eb171a99 1491 default 416 if ARCH_SUNXI
06b851e5 1492 default 392 if ARCH_U8500
01bb914c 1493 default 352 if ARCH_VT8500
7b5da4c3 1494 default 288 if ARCH_ROCKCHIP
2a6ad871 1495 default 264 if MACH_H4700
44986ab0
PDSN
1496 default 0
1497 help
1498 Maximum number of GPIOs in the system.
1499
1500 If unsure, leave the default value.
1501
d45a398f 1502source kernel/Kconfig.preempt
1da177e4 1503
c9218b16 1504config HZ_FIXED
f8065813 1505 int
070b8b43 1506 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || \
a73ddc61 1507 ARCH_S5PV210 || ARCH_EXYNOS4
5248c657 1508 default AT91_TIMER_HZ if ARCH_AT91
bf98c1ea 1509 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE_LEGACY
47d84682 1510 default 0
c9218b16
RK
1511
1512choice
47d84682 1513 depends on HZ_FIXED = 0
c9218b16
RK
1514 prompt "Timer frequency"
1515
1516config HZ_100
1517 bool "100 Hz"
1518
1519config HZ_200
1520 bool "200 Hz"
1521
1522config HZ_250
1523 bool "250 Hz"
1524
1525config HZ_300
1526 bool "300 Hz"
1527
1528config HZ_500
1529 bool "500 Hz"
1530
1531config HZ_1000
1532 bool "1000 Hz"
1533
1534endchoice
1535
1536config HZ
1537 int
47d84682 1538 default HZ_FIXED if HZ_FIXED != 0
c9218b16
RK
1539 default 100 if HZ_100
1540 default 200 if HZ_200
1541 default 250 if HZ_250
1542 default 300 if HZ_300
1543 default 500 if HZ_500
1544 default 1000
1545
1546config SCHED_HRTICK
1547 def_bool HIGH_RES_TIMERS
f8065813 1548
16c79651 1549config THUMB2_KERNEL
bc7dea00 1550 bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
4477ca45 1551 depends on (CPU_V7 || CPU_V7M) && !CPU_V6 && !CPU_V6K
bc7dea00 1552 default y if CPU_THUMBONLY
16c79651
CM
1553 select AEABI
1554 select ARM_ASM_UNIFIED
89bace65 1555 select ARM_UNWIND
16c79651
CM
1556 help
1557 By enabling this option, the kernel will be compiled in
1558 Thumb-2 mode. A compiler/assembler that understand the unified
1559 ARM-Thumb syntax is needed.
1560
1561 If unsure, say N.
1562
6f685c5c
DM
1563config THUMB2_AVOID_R_ARM_THM_JUMP11
1564 bool "Work around buggy Thumb-2 short branch relocations in gas"
1565 depends on THUMB2_KERNEL && MODULES
1566 default y
1567 help
1568 Various binutils versions can resolve Thumb-2 branches to
1569 locally-defined, preemptible global symbols as short-range "b.n"
1570 branch instructions.
1571
1572 This is a problem, because there's no guarantee the final
1573 destination of the symbol, or any candidate locations for a
1574 trampoline, are within range of the branch. For this reason, the
1575 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1576 relocation in modules at all, and it makes little sense to add
1577 support.
1578
1579 The symptom is that the kernel fails with an "unsupported
1580 relocation" error when loading some modules.
1581
1582 Until fixed tools are available, passing
1583 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1584 code which hits this problem, at the cost of a bit of extra runtime
1585 stack usage in some cases.
1586
1587 The problem is described in more detail at:
1588 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1589
1590 Only Thumb-2 kernels are affected.
1591
1592 Unless you are sure your tools don't have this problem, say Y.
1593
0becb088
CM
1594config ARM_ASM_UNIFIED
1595 bool
1596
704bdda0
NP
1597config AEABI
1598 bool "Use the ARM EABI to compile the kernel"
1599 help
1600 This option allows for the kernel to be compiled using the latest
1601 ARM ABI (aka EABI). This is only useful if you are using a user
1602 space environment that is also compiled with EABI.
1603
1604 Since there are major incompatibilities between the legacy ABI and
1605 EABI, especially with regard to structure member alignment, this
1606 option also changes the kernel syscall calling convention to
1607 disambiguate both ABIs and allow for backward compatibility support
1608 (selected with CONFIG_OABI_COMPAT).
1609
1610 To use this you need GCC version 4.0.0 or later.
1611
6c90c872 1612config OABI_COMPAT
a73a3ff1 1613 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
d6f94fa0 1614 depends on AEABI && !THUMB2_KERNEL
6c90c872
NP
1615 help
1616 This option preserves the old syscall interface along with the
1617 new (ARM EABI) one. It also provides a compatibility layer to
1618 intercept syscalls that have structure arguments which layout
1619 in memory differs between the legacy ABI and the new ARM EABI
1620 (only for non "thumb" binaries). This option adds a tiny
1621 overhead to all syscalls and produces a slightly larger kernel.
91702175
KC
1622
1623 The seccomp filter system will not be available when this is
1624 selected, since there is no way yet to sensibly distinguish
1625 between calling conventions during filtering.
1626
6c90c872
NP
1627 If you know you'll be using only pure EABI user space then you
1628 can say N here. If this option is not selected and you attempt
1629 to execute a legacy ABI binary then the result will be
1630 UNPREDICTABLE (in fact it can be predicted that it won't work
b02f8467 1631 at all). If in doubt say N.
6c90c872 1632
eb33575c 1633config ARCH_HAS_HOLES_MEMORYMODEL
e80d6a24 1634 bool
e80d6a24 1635
05944d74
RK
1636config ARCH_SPARSEMEM_ENABLE
1637 bool
1638
07a2f737
RK
1639config ARCH_SPARSEMEM_DEFAULT
1640 def_bool ARCH_SPARSEMEM_ENABLE
1641
05944d74 1642config ARCH_SELECT_MEMORY_MODEL
be370302 1643 def_bool ARCH_SPARSEMEM_ENABLE
c80d79d7 1644
7b7bf499
WD
1645config HAVE_ARCH_PFN_VALID
1646 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1647
b8cd51af
SC
1648config HAVE_GENERIC_RCU_GUP
1649 def_bool y
1650 depends on ARM_LPAE
1651
053a96ca 1652config HIGHMEM
e8db89a2
RK
1653 bool "High Memory Support"
1654 depends on MMU
053a96ca
NP
1655 help
1656 The address space of ARM processors is only 4 Gigabytes large
1657 and it has to accommodate user address space, kernel address
1658 space as well as some memory mapped IO. That means that, if you
1659 have a large amount of physical memory and/or IO, not all of the
1660 memory can be "permanently mapped" by the kernel. The physical
1661 memory that is not permanently mapped is called "high memory".
1662
1663 Depending on the selected kernel/user memory split, minimum
1664 vmalloc space and actual amount of RAM, you may not need this
1665 option which should result in a slightly faster kernel.
1666
1667 If unsure, say n.
1668
65cec8e3
RK
1669config HIGHPTE
1670 bool "Allocate 2nd-level pagetables from highmem"
1671 depends on HIGHMEM
65cec8e3 1672
1b8873a0
JI
1673config HW_PERF_EVENTS
1674 bool "Enable hardware performance counter support for perf events"
f0d1bc47 1675 depends on PERF_EVENTS
1b8873a0
JI
1676 default y
1677 help
1678 Enable hardware performance counter support for perf events. If
1679 disabled, perf events will use software events only.
1680
1355e2a6
CM
1681config SYS_SUPPORTS_HUGETLBFS
1682 def_bool y
1683 depends on ARM_LPAE
1684
8d962507
CM
1685config HAVE_ARCH_TRANSPARENT_HUGEPAGE
1686 def_bool y
1687 depends on ARM_LPAE
1688
4bfab203
SC
1689config ARCH_WANT_GENERAL_HUGETLB
1690 def_bool y
1691
3f22ab27
DH
1692source "mm/Kconfig"
1693
c1b2d970 1694config FORCE_MAX_ZONEORDER
bf98c1ea
LP
1695 int "Maximum zone order" if ARCH_SHMOBILE_LEGACY
1696 range 11 64 if ARCH_SHMOBILE_LEGACY
898f08e1 1697 default "12" if SOC_AM33XX
6d85e2b0 1698 default "9" if SA1111 || ARCH_EFM32
c1b2d970
MD
1699 default "11"
1700 help
1701 The kernel memory allocator divides physically contiguous memory
1702 blocks into "zones", where each zone is a power of two number of
1703 pages. This option selects the largest power of two that the kernel
1704 keeps in the memory allocator. If you need to allocate very large
1705 blocks of physically contiguous memory, then you may need to
1706 increase this value.
1707
1708 This config option is actually maximum order plus one. For example,
1709 a value of 11 means that the largest free memory block is 2^10 pages.
1710
1da177e4
LT
1711config ALIGNMENT_TRAP
1712 bool
f12d0d7c 1713 depends on CPU_CP15_MMU
1da177e4 1714 default y if !ARCH_EBSA110
e119bfff 1715 select HAVE_PROC_CPU if PROC_FS
1da177e4 1716 help
84eb8d06 1717 ARM processors cannot fetch/store information which is not
1da177e4
LT
1718 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1719 address divisible by 4. On 32-bit ARM processors, these non-aligned
1720 fetch/store instructions will be emulated in software if you say
1721 here, which has a severe performance impact. This is necessary for
1722 correct operation of some network protocols. With an IP-only
1723 configuration it is safe to say N, otherwise say Y.
1724
39ec58f3 1725config UACCESS_WITH_MEMCPY
38ef2ad5
LW
1726 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1727 depends on MMU
39ec58f3
LB
1728 default y if CPU_FEROCEON
1729 help
1730 Implement faster copy_to_user and clear_user methods for CPU
1731 cores where a 8-word STM instruction give significantly higher
1732 memory write throughput than a sequence of individual 32bit stores.
1733
1734 A possible side effect is a slight increase in scheduling latency
1735 between threads sharing the same address space if they invoke
1736 such copy operations with large buffers.
1737
1738 However, if the CPU data cache is using a write-allocate mode,
1739 this option is unlikely to provide any performance gain.
1740
70c70d97
NP
1741config SECCOMP
1742 bool
1743 prompt "Enable seccomp to safely compute untrusted bytecode"
1744 ---help---
1745 This kernel feature is useful for number crunching applications
1746 that may need to compute untrusted bytecode during their
1747 execution. By using pipes or other transports made available to
1748 the process as file descriptors supporting the read/write
1749 syscalls, it's possible to isolate those applications in
1750 their own address space using seccomp. Once seccomp is
1751 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1752 and the task is only allowed to execute a few safe syscalls
1753 defined by each seccomp mode.
1754
06e6295b
SS
1755config SWIOTLB
1756 def_bool y
1757
1758config IOMMU_HELPER
1759 def_bool SWIOTLB
1760
eff8d644
SS
1761config XEN_DOM0
1762 def_bool y
1763 depends on XEN
1764
1765config XEN
c2ba1f7d 1766 bool "Xen guest support on ARM"
85323a99 1767 depends on ARM && AEABI && OF
f880b67d 1768 depends on CPU_V7 && !CPU_V6
85323a99 1769 depends on !GENERIC_ATOMIC64
7693decc 1770 depends on MMU
51aaf81f 1771 select ARCH_DMA_ADDR_T_64BIT
17b7ab80 1772 select ARM_PSCI
83862ccf 1773 select SWIOTLB_XEN
eff8d644
SS
1774 help
1775 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1776
1da177e4
LT
1777endmenu
1778
1779menu "Boot options"
1780
9eb8f674
GL
1781config USE_OF
1782 bool "Flattened Device Tree support"
b1b3f49c 1783 select IRQ_DOMAIN
9eb8f674
GL
1784 select OF
1785 select OF_EARLY_FLATTREE
bcedb5f9 1786 select OF_RESERVED_MEM
9eb8f674
GL
1787 help
1788 Include support for flattened device tree machine descriptions.
1789
bd51e2f5
NP
1790config ATAGS
1791 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1792 default y
1793 help
1794 This is the traditional way of passing data to the kernel at boot
1795 time. If you are solely relying on the flattened device tree (or
1796 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1797 to remove ATAGS support from your kernel binary. If unsure,
1798 leave this to y.
1799
1800config DEPRECATED_PARAM_STRUCT
1801 bool "Provide old way to pass kernel parameters"
1802 depends on ATAGS
1803 help
1804 This was deprecated in 2001 and announced to live on for 5 years.
1805 Some old boot loaders still use this way.
1806
1da177e4
LT
1807# Compressed boot loader in ROM. Yes, we really want to ask about
1808# TEXT and BSS so we preserve their values in the config files.
1809config ZBOOT_ROM_TEXT
1810 hex "Compressed ROM boot loader base address"
1811 default "0"
1812 help
1813 The physical address at which the ROM-able zImage is to be
1814 placed in the target. Platforms which normally make use of
1815 ROM-able zImage formats normally set this to a suitable
1816 value in their defconfig file.
1817
1818 If ZBOOT_ROM is not enabled, this has no effect.
1819
1820config ZBOOT_ROM_BSS
1821 hex "Compressed ROM boot loader BSS address"
1822 default "0"
1823 help
f8c440b2
DF
1824 The base address of an area of read/write memory in the target
1825 for the ROM-able zImage which must be available while the
1826 decompressor is running. It must be large enough to hold the
1827 entire decompressed kernel plus an additional 128 KiB.
1828 Platforms which normally make use of ROM-able zImage formats
1829 normally set this to a suitable value in their defconfig file.
1da177e4
LT
1830
1831 If ZBOOT_ROM is not enabled, this has no effect.
1832
1833config ZBOOT_ROM
1834 bool "Compressed boot loader in ROM/flash"
1835 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
10968131 1836 depends on !ARM_APPENDED_DTB && !XIP_KERNEL && !AUTO_ZRELADDR
1da177e4
LT
1837 help
1838 Say Y here if you intend to execute your compressed kernel image
1839 (zImage) directly from ROM or flash. If unsure, say N.
1840
090ab3ff
SH
1841choice
1842 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
d6f94fa0 1843 depends on ZBOOT_ROM && ARCH_SH7372
090ab3ff
SH
1844 default ZBOOT_ROM_NONE
1845 help
1846 Include experimental SD/MMC loading code in the ROM-able zImage.
59bf8964 1847 With this enabled it is possible to write the ROM-able zImage
090ab3ff
SH
1848 kernel image to an MMC or SD card and boot the kernel straight
1849 from the reset vector. At reset the processor Mask ROM will load
59bf8964 1850 the first part of the ROM-able zImage which in turn loads the
090ab3ff
SH
1851 rest the kernel image to RAM.
1852
1853config ZBOOT_ROM_NONE
1854 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1855 help
1856 Do not load image from SD or MMC
1857
f45b1149
SH
1858config ZBOOT_ROM_MMCIF
1859 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
f45b1149 1860 help
090ab3ff
SH
1861 Load image from MMCIF hardware block.
1862
1863config ZBOOT_ROM_SH_MOBILE_SDHI
1864 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1865 help
1866 Load image from SDHI hardware block
1867
1868endchoice
f45b1149 1869
e2a6a3aa
JB
1870config ARM_APPENDED_DTB
1871 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
10968131 1872 depends on OF
e2a6a3aa
JB
1873 help
1874 With this option, the boot code will look for a device tree binary
1875 (DTB) appended to zImage
1876 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1877
1878 This is meant as a backward compatibility convenience for those
1879 systems with a bootloader that can't be upgraded to accommodate
1880 the documented boot protocol using a device tree.
1881
1882 Beware that there is very little in terms of protection against
1883 this option being confused by leftover garbage in memory that might
1884 look like a DTB header after a reboot if no actual DTB is appended
1885 to zImage. Do not leave this option active in a production kernel
1886 if you don't intend to always append a DTB. Proper passing of the
1887 location into r2 of a bootloader provided DTB is always preferable
1888 to this option.
1889
b90b9a38
NP
1890config ARM_ATAG_DTB_COMPAT
1891 bool "Supplement the appended DTB with traditional ATAG information"
1892 depends on ARM_APPENDED_DTB
1893 help
1894 Some old bootloaders can't be updated to a DTB capable one, yet
1895 they provide ATAGs with memory configuration, the ramdisk address,
1896 the kernel cmdline string, etc. Such information is dynamically
1897 provided by the bootloader and can't always be stored in a static
1898 DTB. To allow a device tree enabled kernel to be used with such
1899 bootloaders, this option allows zImage to extract the information
1900 from the ATAG list and store it at run time into the appended DTB.
1901
d0f34a11
GR
1902choice
1903 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
1904 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1905
1906config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1907 bool "Use bootloader kernel arguments if available"
1908 help
1909 Uses the command-line options passed by the boot loader instead of
1910 the device tree bootargs property. If the boot loader doesn't provide
1911 any, the device tree bootargs property will be used.
1912
1913config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
1914 bool "Extend with bootloader kernel arguments"
1915 help
1916 The command-line arguments provided by the boot loader will be
1917 appended to the the device tree bootargs property.
1918
1919endchoice
1920
1da177e4
LT
1921config CMDLINE
1922 string "Default kernel command string"
1923 default ""
1924 help
1925 On some architectures (EBSA110 and CATS), there is currently no way
1926 for the boot loader to pass arguments to the kernel. For these
1927 architectures, you should supply some command-line options at build
1928 time by entering them here. As a minimum, you should specify the
1929 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1930
4394c124
VB
1931choice
1932 prompt "Kernel command line type" if CMDLINE != ""
1933 default CMDLINE_FROM_BOOTLOADER
bd51e2f5 1934 depends on ATAGS
4394c124
VB
1935
1936config CMDLINE_FROM_BOOTLOADER
1937 bool "Use bootloader kernel arguments if available"
1938 help
1939 Uses the command-line options passed by the boot loader. If
1940 the boot loader doesn't provide any, the default kernel command
1941 string provided in CMDLINE will be used.
1942
1943config CMDLINE_EXTEND
1944 bool "Extend bootloader kernel arguments"
1945 help
1946 The command-line arguments provided by the boot loader will be
1947 appended to the default kernel command string.
1948
92d2040d
AH
1949config CMDLINE_FORCE
1950 bool "Always use the default kernel command string"
92d2040d
AH
1951 help
1952 Always use the default kernel command string, even if the boot
1953 loader passes other arguments to the kernel.
1954 This is useful if you cannot or don't want to change the
1955 command-line options your boot loader passes to the kernel.
4394c124 1956endchoice
92d2040d 1957
1da177e4
LT
1958config XIP_KERNEL
1959 bool "Kernel Execute-In-Place from ROM"
10968131 1960 depends on !ARM_LPAE && !ARCH_MULTIPLATFORM
1da177e4
LT
1961 help
1962 Execute-In-Place allows the kernel to run from non-volatile storage
1963 directly addressable by the CPU, such as NOR flash. This saves RAM
1964 space since the text section of the kernel is not loaded from flash
1965 to RAM. Read-write sections, such as the data section and stack,
1966 are still copied to RAM. The XIP kernel is not compressed since
1967 it has to run directly from flash, so it will take more space to
1968 store it. The flash address used to link the kernel object files,
1969 and for storing it, is configuration dependent. Therefore, if you
1970 say Y here, you must know the proper physical address where to
1971 store the kernel image depending on your own flash memory usage.
1972
1973 Also note that the make target becomes "make xipImage" rather than
1974 "make zImage" or "make Image". The final kernel binary to put in
1975 ROM memory will be arch/arm/boot/xipImage.
1976
1977 If unsure, say N.
1978
1979config XIP_PHYS_ADDR
1980 hex "XIP Kernel Physical Location"
1981 depends on XIP_KERNEL
1982 default "0x00080000"
1983 help
1984 This is the physical address in your flash memory the kernel will
1985 be linked for and stored to. This address is dependent on your
1986 own flash usage.
1987
c587e4a6
RP
1988config KEXEC
1989 bool "Kexec system call (EXPERIMENTAL)"
19ab428f 1990 depends on (!SMP || PM_SLEEP_SMP)
c587e4a6
RP
1991 help
1992 kexec is a system call that implements the ability to shutdown your
1993 current kernel, and to start another kernel. It is like a reboot
01dd2fbf 1994 but it is independent of the system firmware. And like a reboot
c587e4a6
RP
1995 you can start any kernel with it, not just Linux.
1996
1997 It is an ongoing process to be certain the hardware in a machine
1998 is properly shutdown, so do not be surprised if this code does not
bf220695 1999 initially work for you.
c587e4a6 2000
4cd9d6f7
RP
2001config ATAGS_PROC
2002 bool "Export atags in procfs"
bd51e2f5 2003 depends on ATAGS && KEXEC
b98d7291 2004 default y
4cd9d6f7
RP
2005 help
2006 Should the atags used to boot the kernel be exported in an "atags"
2007 file in procfs. Useful with kexec.
2008
cb5d39b3
MW
2009config CRASH_DUMP
2010 bool "Build kdump crash kernel (EXPERIMENTAL)"
cb5d39b3
MW
2011 help
2012 Generate crash dump after being started by kexec. This should
2013 be normally only set in special crash dump kernels which are
2014 loaded in the main kernel with kexec-tools into a specially
2015 reserved region and then later executed after a crash by
2016 kdump/kexec. The crash dump kernel must be compiled to a
2017 memory address not used by the main kernel
2018
2019 For more details see Documentation/kdump/kdump.txt
2020
e69edc79
EM
2021config AUTO_ZRELADDR
2022 bool "Auto calculation of the decompressed kernel image address"
e69edc79
EM
2023 help
2024 ZRELADDR is the physical address where the decompressed kernel
2025 image will be placed. If AUTO_ZRELADDR is selected, the address
2026 will be determined at run-time by masking the current IP with
2027 0xf8000000. This assumes the zImage being placed in the first 128MB
2028 from start of memory.
2029
1da177e4
LT
2030endmenu
2031
ac9d7efc 2032menu "CPU Power Management"
1da177e4 2033
1da177e4 2034source "drivers/cpufreq/Kconfig"
1da177e4 2035
ac9d7efc
RK
2036source "drivers/cpuidle/Kconfig"
2037
2038endmenu
2039
1da177e4
LT
2040menu "Floating point emulation"
2041
2042comment "At least one emulation must be selected"
2043
2044config FPE_NWFPE
2045 bool "NWFPE math emulation"
593c252a 2046 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
1da177e4
LT
2047 ---help---
2048 Say Y to include the NWFPE floating point emulator in the kernel.
2049 This is necessary to run most binaries. Linux does not currently
2050 support floating point hardware so you need to say Y here even if
2051 your machine has an FPA or floating point co-processor podule.
2052
2053 You may say N here if you are going to load the Acorn FPEmulator
2054 early in the bootup.
2055
2056config FPE_NWFPE_XP
2057 bool "Support extended precision"
bedf142b 2058 depends on FPE_NWFPE
1da177e4
LT
2059 help
2060 Say Y to include 80-bit support in the kernel floating-point
2061 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2062 Note that gcc does not generate 80-bit operations by default,
2063 so in most cases this option only enlarges the size of the
2064 floating point emulator without any good reason.
2065
2066 You almost surely want to say N here.
2067
2068config FPE_FASTFPE
2069 bool "FastFPE math emulation (EXPERIMENTAL)"
d6f94fa0 2070 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
1da177e4
LT
2071 ---help---
2072 Say Y here to include the FAST floating point emulator in the kernel.
2073 This is an experimental much faster emulator which now also has full
2074 precision for the mantissa. It does not support any exceptions.
2075 It is very simple, and approximately 3-6 times faster than NWFPE.
2076
2077 It should be sufficient for most programs. It may be not suitable
2078 for scientific calculations, but you have to check this for yourself.
2079 If you do not feel you need a faster FP emulation you should better
2080 choose NWFPE.
2081
2082config VFP
2083 bool "VFP-format floating point maths"
e399b1a4 2084 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
1da177e4
LT
2085 help
2086 Say Y to include VFP support code in the kernel. This is needed
2087 if your hardware includes a VFP unit.
2088
2089 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2090 release notes and additional status information.
2091
2092 Say N if your target does not have VFP hardware.
2093
25ebee02
CM
2094config VFPv3
2095 bool
2096 depends on VFP
2097 default y if CPU_V7
2098
b5872db4
CM
2099config NEON
2100 bool "Advanced SIMD (NEON) Extension support"
2101 depends on VFPv3 && CPU_V7
2102 help
2103 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2104 Extension.
2105
73c132c1
AB
2106config KERNEL_MODE_NEON
2107 bool "Support for NEON in kernel mode"
c4a30c3b 2108 depends on NEON && AEABI
73c132c1
AB
2109 help
2110 Say Y to include support for NEON in kernel mode.
2111
1da177e4
LT
2112endmenu
2113
2114menu "Userspace binary formats"
2115
2116source "fs/Kconfig.binfmt"
2117
2118config ARTHUR
2119 tristate "RISC OS personality"
704bdda0 2120 depends on !AEABI
1da177e4
LT
2121 help
2122 Say Y here to include the kernel code necessary if you want to run
2123 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2124 experimental; if this sounds frightening, say N and sleep in peace.
2125 You can also say M here to compile this support as a module (which
2126 will be called arthur).
2127
2128endmenu
2129
2130menu "Power management options"
2131
eceab4ac 2132source "kernel/power/Kconfig"
1da177e4 2133
f4cb5700 2134config ARCH_SUSPEND_POSSIBLE
19a0519d 2135 depends on CPU_ARM920T || CPU_ARM926T || CPU_FEROCEON || CPU_SA1100 || \
f0d75153 2136 CPU_V6 || CPU_V6K || CPU_V7 || CPU_V7M || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
f4cb5700
JB
2137 def_bool y
2138
15e0d9e3
AB
2139config ARM_CPU_SUSPEND
2140 def_bool PM_SLEEP
2141
603fb42a
SC
2142config ARCH_HIBERNATION_POSSIBLE
2143 bool
2144 depends on MMU
2145 default y if ARCH_SUSPEND_POSSIBLE
2146
1da177e4
LT
2147endmenu
2148
d5950b43
SR
2149source "net/Kconfig"
2150
ac25150f 2151source "drivers/Kconfig"
1da177e4
LT
2152
2153source "fs/Kconfig"
2154
1da177e4
LT
2155source "arch/arm/Kconfig.debug"
2156
2157source "security/Kconfig"
2158
2159source "crypto/Kconfig"
2160
2161source "lib/Kconfig"
749cf76c
CD
2162
2163source "arch/arm/kvm/Kconfig"
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