ARM: lpc18xx: add basic support for NXP LPC18xx/43xx SoCs
[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
4af6fee1
DS
332config ARCH_REALVIEW
333 bool "ARM Ltd. RealView family"
b1b3f49c 334 select ARCH_WANT_OPTIONAL_GPIOLIB
4af6fee1 335 select ARM_AMBA
b1b3f49c 336 select ARM_TIMER_SP804
f9a6aa43
LW
337 select COMMON_CLK
338 select COMMON_CLK_VERSATILE
ae30ceac 339 select GENERIC_CLOCKEVENTS
b56ba8aa 340 select GPIO_PL061 if GPIOLIB
b1b3f49c 341 select ICST
0cdc8b92 342 select NEED_MACH_MEMORY_H
b1b3f49c 343 select PLAT_VERSATILE
81cc3f86 344 select PLAT_VERSATILE_SCHED_CLOCK
4af6fee1
DS
345 help
346 This enables support for ARM Ltd RealView boards.
347
348config ARCH_VERSATILE
349 bool "ARM Ltd. Versatile family"
b1b3f49c 350 select ARCH_WANT_OPTIONAL_GPIOLIB
4af6fee1 351 select ARM_AMBA
b1b3f49c 352 select ARM_TIMER_SP804
4af6fee1 353 select ARM_VIC
6d803ba7 354 select CLKDEV_LOOKUP
b1b3f49c 355 select GENERIC_CLOCKEVENTS
aa3831cf 356 select HAVE_MACH_CLKDEV
c5a0adb5 357 select ICST
f4b8b319 358 select PLAT_VERSATILE
b1b3f49c 359 select PLAT_VERSATILE_CLOCK
81cc3f86 360 select PLAT_VERSATILE_SCHED_CLOCK
2389d501 361 select VERSATILE_FPGA_IRQ
4af6fee1
DS
362 help
363 This enables support for ARM Ltd Versatile board.
364
93e22567
RK
365config ARCH_CLPS711X
366 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
a3b8d4a5 367 select ARCH_REQUIRE_GPIOLIB
ea7d1bc9 368 select AUTO_ZRELADDR
c99f72ad 369 select CLKSRC_MMIO
93e22567
RK
370 select COMMON_CLK
371 select CPU_ARM720T
4a8355c4 372 select GENERIC_CLOCKEVENTS
6597619f 373 select MFD_SYSCON
e4e3a37d 374 select SOC_BUS
93e22567
RK
375 help
376 Support for Cirrus Logic 711x/721x/731x based boards.
377
788c9700
RK
378config ARCH_GEMINI
379 bool "Cortina Systems Gemini"
788c9700 380 select ARCH_REQUIRE_GPIOLIB
f3372c01 381 select CLKSRC_MMIO
b1b3f49c 382 select CPU_FA526
f3372c01 383 select GENERIC_CLOCKEVENTS
788c9700
RK
384 help
385 Support for the Cortina Systems Gemini family SoCs
386
1da177e4
LT
387config ARCH_EBSA110
388 bool "EBSA-110"
b1b3f49c 389 select ARCH_USES_GETTIMEOFFSET
c750815e 390 select CPU_SA110
f7e68bbf 391 select ISA
c334bc15 392 select NEED_MACH_IO_H
0cdc8b92 393 select NEED_MACH_MEMORY_H
ce816fa8 394 select NO_IOPORT_MAP
1da177e4
LT
395 help
396 This is an evaluation board for the StrongARM processor available
f6c8965a 397 from Digital. It has limited hardware on-board, including an
1da177e4
LT
398 Ethernet interface, two PCMCIA sockets, two serial ports and a
399 parallel port.
400
6d85e2b0
UKK
401config ARCH_EFM32
402 bool "Energy Micro efm32"
403 depends on !MMU
404 select ARCH_REQUIRE_GPIOLIB
405 select ARM_NVIC
51aaf81f 406 select AUTO_ZRELADDR
6d85e2b0
UKK
407 select CLKSRC_OF
408 select COMMON_CLK
409 select CPU_V7M
410 select GENERIC_CLOCKEVENTS
411 select NO_DMA
ce816fa8 412 select NO_IOPORT_MAP
6d85e2b0
UKK
413 select SPARSE_IRQ
414 select USE_OF
415 help
416 Support for Energy Micro's (now Silicon Labs) efm32 Giant Gecko
417 processors.
418
e7736d47
LB
419config ARCH_EP93XX
420 bool "EP93xx-based"
b1b3f49c
RK
421 select ARCH_HAS_HOLES_MEMORYMODEL
422 select ARCH_REQUIRE_GPIOLIB
423 select ARCH_USES_GETTIMEOFFSET
e7736d47
LB
424 select ARM_AMBA
425 select ARM_VIC
6d803ba7 426 select CLKDEV_LOOKUP
b1b3f49c 427 select CPU_ARM920T
e7736d47
LB
428 help
429 This enables support for the Cirrus EP93xx series of CPUs.
430
1da177e4
LT
431config ARCH_FOOTBRIDGE
432 bool "FootBridge"
c750815e 433 select CPU_SA110
1da177e4 434 select FOOTBRIDGE
4e8d7637 435 select GENERIC_CLOCKEVENTS
d0ee9f40 436 select HAVE_IDE
8ef6e620 437 select NEED_MACH_IO_H if !MMU
0cdc8b92 438 select NEED_MACH_MEMORY_H
f999b8bd
MM
439 help
440 Support for systems based on the DC21285 companion chip
441 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
1da177e4 442
4af6fee1
DS
443config ARCH_NETX
444 bool "Hilscher NetX based"
b1b3f49c 445 select ARM_VIC
234b6ced 446 select CLKSRC_MMIO
c750815e 447 select CPU_ARM926T
2fcfe6b8 448 select GENERIC_CLOCKEVENTS
f999b8bd 449 help
4af6fee1
DS
450 This enables support for systems based on the Hilscher NetX Soc
451
3b938be6
RK
452config ARCH_IOP13XX
453 bool "IOP13xx-based"
454 depends on MMU
b1b3f49c 455 select CPU_XSC3
0cdc8b92 456 select NEED_MACH_MEMORY_H
13a5045d 457 select NEED_RET_TO_USER
b1b3f49c
RK
458 select PCI
459 select PLAT_IOP
460 select VMSPLIT_1G
37ebbcff 461 select SPARSE_IRQ
3b938be6
RK
462 help
463 Support for Intel's IOP13XX (XScale) family of processors.
464
3f7e5815
LB
465config ARCH_IOP32X
466 bool "IOP32x-based"
a4f7e763 467 depends on MMU
b1b3f49c 468 select ARCH_REQUIRE_GPIOLIB
c750815e 469 select CPU_XSCALE
e9004f50 470 select GPIO_IOP
13a5045d 471 select NEED_RET_TO_USER
f7e68bbf 472 select PCI
b1b3f49c 473 select PLAT_IOP
f999b8bd 474 help
3f7e5815
LB
475 Support for Intel's 80219 and IOP32X (XScale) family of
476 processors.
477
478config ARCH_IOP33X
479 bool "IOP33x-based"
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
3f7e5815 485 select PCI
b1b3f49c 486 select PLAT_IOP
3f7e5815
LB
487 help
488 Support for Intel's IOP33X (XScale) family of processors.
1da177e4 489
3b938be6
RK
490config ARCH_IXP4XX
491 bool "IXP4xx-based"
a4f7e763 492 depends on MMU
58af4a24 493 select ARCH_HAS_DMA_SET_COHERENT_MASK
b1b3f49c 494 select ARCH_REQUIRE_GPIOLIB
51aaf81f 495 select ARCH_SUPPORTS_BIG_ENDIAN
234b6ced 496 select CLKSRC_MMIO
c750815e 497 select CPU_XSCALE
b1b3f49c 498 select DMABOUNCE if PCI
3b938be6 499 select GENERIC_CLOCKEVENTS
0b05da72 500 select MIGHT_HAVE_PCI
c334bc15 501 select NEED_MACH_IO_H
9296d94d 502 select USB_EHCI_BIG_ENDIAN_DESC
171b3f0d 503 select USB_EHCI_BIG_ENDIAN_MMIO
c4713074 504 help
3b938be6 505 Support for Intel's IXP4XX (XScale) family of processors.
c4713074 506
edabd38e
SB
507config ARCH_DOVE
508 bool "Marvell Dove"
edabd38e 509 select ARCH_REQUIRE_GPIOLIB
756b2531 510 select CPU_PJ4
edabd38e 511 select GENERIC_CLOCKEVENTS
0f81bd43 512 select MIGHT_HAVE_PCI
171b3f0d 513 select MVEBU_MBUS
9139acd1
SH
514 select PINCTRL
515 select PINCTRL_DOVE
abcda1dc 516 select PLAT_ORION_LEGACY
edabd38e
SB
517 help
518 Support for the Marvell Dove SoC 88AP510
519
794d15b2
SS
520config ARCH_MV78XX0
521 bool "Marvell MV78xx0"
a8865655 522 select ARCH_REQUIRE_GPIOLIB
b1b3f49c 523 select CPU_FEROCEON
794d15b2 524 select GENERIC_CLOCKEVENTS
171b3f0d 525 select MVEBU_MBUS
b1b3f49c 526 select PCI
abcda1dc 527 select PLAT_ORION_LEGACY
794d15b2
SS
528 help
529 Support for the following Marvell MV78xx0 series SoCs:
530 MV781x0, MV782x0.
531
9dd0b194 532config ARCH_ORION5X
585cf175
TP
533 bool "Marvell Orion"
534 depends on MMU
a8865655 535 select ARCH_REQUIRE_GPIOLIB
b1b3f49c 536 select CPU_FEROCEON
51cbff1d 537 select GENERIC_CLOCKEVENTS
171b3f0d 538 select MVEBU_MBUS
b1b3f49c 539 select PCI
abcda1dc 540 select PLAT_ORION_LEGACY
585cf175 541 help
9dd0b194 542 Support for the following Marvell Orion 5x series SoCs:
d2b2a6bb 543 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
d323ade1 544 Orion-2 (5281), Orion-1-90 (6183).
585cf175 545
788c9700 546config ARCH_MMP
2f7e8fae 547 bool "Marvell PXA168/910/MMP2"
788c9700 548 depends on MMU
788c9700 549 select ARCH_REQUIRE_GPIOLIB
6d803ba7 550 select CLKDEV_LOOKUP
b1b3f49c 551 select GENERIC_ALLOCATOR
788c9700 552 select GENERIC_CLOCKEVENTS
157d2644 553 select GPIO_PXA
c24b3114 554 select IRQ_DOMAIN
0f374561 555 select MULTI_IRQ_HANDLER
7c8f86a4 556 select PINCTRL
788c9700 557 select PLAT_PXA
0bd86961 558 select SPARSE_IRQ
788c9700 559 help
2f7e8fae 560 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
788c9700
RK
561
562config ARCH_KS8695
563 bool "Micrel/Kendin KS8695"
98830bc9 564 select ARCH_REQUIRE_GPIOLIB
c7e783d6 565 select CLKSRC_MMIO
b1b3f49c 566 select CPU_ARM922T
c7e783d6 567 select GENERIC_CLOCKEVENTS
b1b3f49c 568 select NEED_MACH_MEMORY_H
788c9700
RK
569 help
570 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
571 System-on-Chip devices.
572
788c9700
RK
573config ARCH_W90X900
574 bool "Nuvoton W90X900 CPU"
c52d3d68 575 select ARCH_REQUIRE_GPIOLIB
6d803ba7 576 select CLKDEV_LOOKUP
6fa5d5f7 577 select CLKSRC_MMIO
b1b3f49c 578 select CPU_ARM926T
58b5369e 579 select GENERIC_CLOCKEVENTS
788c9700 580 help
a8bc4ead 581 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
582 At present, the w90x900 has been renamed nuc900, regarding
583 the ARM series product line, you can login the following
584 link address to know more.
585
586 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
587 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
788c9700 588
e8d235d4
JE
589config ARCH_LPC18XX
590 bool "NXP LPC18xx/LPC43xx"
591 depends on !MMU
592 select ARCH_HAS_RESET_CONTROLLER
593 select ARCH_REQUIRE_GPIOLIB
594 select ARM_AMBA
595 select ARM_NVIC
596 select AUTO_ZRELADDR
597 select CLKSRC_LPC32XX
598 select COMMON_CLK
599 select CPU_V7M
600 select GENERIC_CLOCKEVENTS
601 select NO_IOPORT_MAP
602 select PINCTRL
603 select SPARSE_IRQ
604 select USE_OF
605 help
606 Support for NXP's LPC18xx Cortex-M3 and LPC43xx Cortex-M4
607 high performance microcontrollers.
608
93e22567
RK
609config ARCH_LPC32XX
610 bool "NXP LPC32XX"
611 select ARCH_REQUIRE_GPIOLIB
612 select ARM_AMBA
613 select CLKDEV_LOOKUP
614 select CLKSRC_MMIO
615 select CPU_ARM926T
616 select GENERIC_CLOCKEVENTS
617 select HAVE_IDE
93e22567
RK
618 select USE_OF
619 help
620 Support for the NXP LPC32XX family of processors
621
1da177e4 622config ARCH_PXA
2c8086a5 623 bool "PXA2xx/PXA3xx-based"
a4f7e763 624 depends on MMU
b1b3f49c
RK
625 select ARCH_MTD_XIP
626 select ARCH_REQUIRE_GPIOLIB
627 select ARM_CPU_SUSPEND if PM
628 select AUTO_ZRELADDR
a1c0a6ad 629 select COMMON_CLK
6d803ba7 630 select CLKDEV_LOOKUP
234b6ced 631 select CLKSRC_MMIO
6f6caeaa 632 select CLKSRC_OF
981d0f39 633 select GENERIC_CLOCKEVENTS
157d2644 634 select GPIO_PXA
d0ee9f40 635 select HAVE_IDE
d6cf30ca 636 select IRQ_DOMAIN
b1b3f49c 637 select MULTI_IRQ_HANDLER
b1b3f49c
RK
638 select PLAT_PXA
639 select SPARSE_IRQ
f999b8bd 640 help
2c8086a5 641 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
1da177e4 642
bf98c1ea 643config ARCH_SHMOBILE_LEGACY
0d9fd616 644 bool "Renesas ARM SoCs (non-multiplatform)"
bf98c1ea 645 select ARCH_SHMOBILE
91942d17 646 select ARM_PATCH_PHYS_VIRT if MMU
5e93c6b4 647 select CLKDEV_LOOKUP
0ed82bc9 648 select CPU_V7
b1b3f49c 649 select GENERIC_CLOCKEVENTS
4c3ffffd 650 select HAVE_ARM_SCU if SMP
a894fcc2 651 select HAVE_ARM_TWD if SMP
3b55658a 652 select HAVE_SMP
ce5ea9f3 653 select MIGHT_HAVE_CACHE_L2X0
60f1435c 654 select MULTI_IRQ_HANDLER
ce816fa8 655 select NO_IOPORT_MAP
2cd3c927 656 select PINCTRL
b1b3f49c 657 select PM_GENERIC_DOMAINS if PM
0cdc23df 658 select SH_CLK_CPG
b1b3f49c 659 select SPARSE_IRQ
c793c1b0 660 help
0d9fd616
LP
661 Support for Renesas ARM SoC platforms using a non-multiplatform
662 kernel. This includes the SH-Mobile, R-Mobile, EMMA-Mobile, R-Car
663 and RZ families.
c793c1b0 664
1da177e4
LT
665config ARCH_RPC
666 bool "RiscPC"
667 select ARCH_ACORN
a08b6b79 668 select ARCH_MAY_HAVE_PC_FDC
07f841b7 669 select ARCH_SPARSEMEM_ENABLE
5cfc8ee0 670 select ARCH_USES_GETTIMEOFFSET
fa04e209 671 select CPU_SA110
b1b3f49c 672 select FIQ
d0ee9f40 673 select HAVE_IDE
b1b3f49c
RK
674 select HAVE_PATA_PLATFORM
675 select ISA_DMA_API
c334bc15 676 select NEED_MACH_IO_H
0cdc8b92 677 select NEED_MACH_MEMORY_H
ce816fa8 678 select NO_IOPORT_MAP
b4811bac 679 select VIRT_TO_BUS
1da177e4
LT
680 help
681 On the Acorn Risc-PC, Linux can support the internal IDE disk and
682 CD-ROM interface, serial and parallel port, and the floppy drive.
683
684config ARCH_SA1100
685 bool "SA1100-based"
b1b3f49c
RK
686 select ARCH_MTD_XIP
687 select ARCH_REQUIRE_GPIOLIB
688 select ARCH_SPARSEMEM_ENABLE
689 select CLKDEV_LOOKUP
690 select CLKSRC_MMIO
1937f5b9 691 select CPU_FREQ
b1b3f49c 692 select CPU_SA1100
3e238be2 693 select GENERIC_CLOCKEVENTS
d0ee9f40 694 select HAVE_IDE
1eca42b4 695 select IRQ_DOMAIN
b1b3f49c 696 select ISA
affcab32 697 select MULTI_IRQ_HANDLER
0cdc8b92 698 select NEED_MACH_MEMORY_H
375dec92 699 select SPARSE_IRQ
f999b8bd
MM
700 help
701 Support for StrongARM 11x0 based boards.
1da177e4 702
b130d5c2
KK
703config ARCH_S3C24XX
704 bool "Samsung S3C24XX SoCs"
53650430 705 select ARCH_REQUIRE_GPIOLIB
335cce74 706 select ATAGS
b1b3f49c 707 select CLKDEV_LOOKUP
4280506a 708 select CLKSRC_SAMSUNG_PWM
7f78b6eb 709 select GENERIC_CLOCKEVENTS
880cf071 710 select GPIO_SAMSUNG
20676c15 711 select HAVE_S3C2410_I2C if I2C
b130d5c2 712 select HAVE_S3C2410_WATCHDOG if WATCHDOG
b1b3f49c 713 select HAVE_S3C_RTC if RTC_CLASS
17453dd2 714 select MULTI_IRQ_HANDLER
c334bc15 715 select NEED_MACH_IO_H
cd8dc7ae 716 select SAMSUNG_ATAGS
1da177e4 717 help
b130d5c2
KK
718 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
719 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
720 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
721 Samsung SMDK2410 development board (and derivatives).
63b1f51b 722
a08ab637
BD
723config ARCH_S3C64XX
724 bool "Samsung S3C64XX"
b1b3f49c 725 select ARCH_REQUIRE_GPIOLIB
1db0287a 726 select ARM_AMBA
89f0ce72 727 select ARM_VIC
335cce74 728 select ATAGS
b1b3f49c 729 select CLKDEV_LOOKUP
4280506a 730 select CLKSRC_SAMSUNG_PWM
ccecba3c 731 select COMMON_CLK_SAMSUNG
70bacadb 732 select CPU_V6K
04a49b71 733 select GENERIC_CLOCKEVENTS
880cf071 734 select GPIO_SAMSUNG
b1b3f49c
RK
735 select HAVE_S3C2410_I2C if I2C
736 select HAVE_S3C2410_WATCHDOG if WATCHDOG
6700397a 737 select HAVE_TCM
ce816fa8 738 select NO_IOPORT_MAP
b1b3f49c 739 select PLAT_SAMSUNG
4ab75a3f 740 select PM_GENERIC_DOMAINS if PM
b1b3f49c
RK
741 select S3C_DEV_NAND
742 select S3C_GPIO_TRACK
cd8dc7ae 743 select SAMSUNG_ATAGS
6e2d9e93 744 select SAMSUNG_WAKEMASK
88f59738 745 select SAMSUNG_WDT_RESET
a08ab637
BD
746 help
747 Samsung S3C64XX series based systems
748
7c6337e2
KH
749config ARCH_DAVINCI
750 bool "TI DaVinci"
b1b3f49c 751 select ARCH_HAS_HOLES_MEMORYMODEL
dce1115b 752 select ARCH_REQUIRE_GPIOLIB
6d803ba7 753 select CLKDEV_LOOKUP
20e9969b 754 select GENERIC_ALLOCATOR
b1b3f49c 755 select GENERIC_CLOCKEVENTS
dc7ad3b3 756 select GENERIC_IRQ_CHIP
b1b3f49c 757 select HAVE_IDE
3ad7a42d 758 select TI_PRIV_EDMA
689e331f 759 select USE_OF
b1b3f49c 760 select ZONE_DMA
7c6337e2
KH
761 help
762 Support for TI's DaVinci platform.
763
a0694861
TL
764config ARCH_OMAP1
765 bool "TI OMAP1"
00a36698 766 depends on MMU
9af915da 767 select ARCH_HAS_HOLES_MEMORYMODEL
a0694861 768 select ARCH_OMAP
21f47fbc 769 select ARCH_REQUIRE_GPIOLIB
b1b3f49c 770 select CLKDEV_LOOKUP
d6e15d78 771 select CLKSRC_MMIO
b1b3f49c 772 select GENERIC_CLOCKEVENTS
a0694861 773 select GENERIC_IRQ_CHIP
a0694861
TL
774 select HAVE_IDE
775 select IRQ_DOMAIN
776 select NEED_MACH_IO_H if PCCARD
777 select NEED_MACH_MEMORY_H
21f47fbc 778 help
a0694861 779 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
02c981c0 780
9b799b78
MC
781config ARCH_STM32
782 bool "STMicrolectronics STM32"
783 depends on !MMU
784 select ARCH_HAS_RESET_CONTROLLER
785 select ARM_NVIC
786 select ARMV7M_SYSTICK
787 select AUTO_ZRELADDR
788 select CLKSRC_OF
789 select COMMON_CLK
790 select CPU_V7M
791 select GENERIC_CLOCKEVENTS
792 select NO_IOPORT_MAP
793 select RESET_CONTROLLER
794 select SPARSE_IRQ
795 select USE_OF
796 help
797 Support for STMicroelectronics STM32 processors.
798
1da177e4
LT
799endchoice
800
387798b3
RH
801menu "Multiple platform selection"
802 depends on ARCH_MULTIPLATFORM
803
804comment "CPU Core family selection"
805
f8afae40
AB
806config ARCH_MULTI_V4
807 bool "ARMv4 based platforms (FA526)"
808 depends on !ARCH_MULTI_V6_V7
809 select ARCH_MULTI_V4_V5
810 select CPU_FA526
811
387798b3
RH
812config ARCH_MULTI_V4T
813 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
387798b3 814 depends on !ARCH_MULTI_V6_V7
b1b3f49c 815 select ARCH_MULTI_V4_V5
24e860fb
AB
816 select CPU_ARM920T if !(CPU_ARM7TDMI || CPU_ARM720T || \
817 CPU_ARM740T || CPU_ARM9TDMI || CPU_ARM922T || \
818 CPU_ARM925T || CPU_ARM940T)
387798b3
RH
819
820config ARCH_MULTI_V5
821 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
387798b3 822 depends on !ARCH_MULTI_V6_V7
b1b3f49c 823 select ARCH_MULTI_V4_V5
12567bbd 824 select CPU_ARM926T if !(CPU_ARM946E || CPU_ARM1020 || \
24e860fb
AB
825 CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || \
826 CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_FEROCEON)
387798b3
RH
827
828config ARCH_MULTI_V4_V5
829 bool
830
831config ARCH_MULTI_V6
8dda05cc 832 bool "ARMv6 based platforms (ARM11)"
387798b3 833 select ARCH_MULTI_V6_V7
42f4754a 834 select CPU_V6K
387798b3
RH
835
836config ARCH_MULTI_V7
8dda05cc 837 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
387798b3
RH
838 default y
839 select ARCH_MULTI_V6_V7
b1b3f49c 840 select CPU_V7
90bc8ac7 841 select HAVE_SMP
387798b3
RH
842
843config ARCH_MULTI_V6_V7
844 bool
9352b05b 845 select MIGHT_HAVE_CACHE_L2X0
387798b3
RH
846
847config ARCH_MULTI_CPU_AUTO
848 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
849 select ARCH_MULTI_V5
850
851endmenu
852
05e2a3de
RH
853config ARCH_VIRT
854 bool "Dummy Virtual Machine" if ARCH_MULTI_V7
4b8b5f25 855 select ARM_AMBA
05e2a3de 856 select ARM_GIC
05e2a3de 857 select ARM_PSCI
4b8b5f25 858 select HAVE_ARM_ARCH_TIMER
05e2a3de 859
ccf50e23
RK
860#
861# This is sorted alphabetically by mach-* pathname. However, plat-*
862# Kconfigs may be included either alphabetically (according to the
863# plat- suffix) or along side the corresponding mach-* source.
864#
3e93a22b
GC
865source "arch/arm/mach-mvebu/Kconfig"
866
445d9b30
TZ
867source "arch/arm/mach-alpine/Kconfig"
868
d9bfc86d
OR
869source "arch/arm/mach-asm9260/Kconfig"
870
95b8f20f
RK
871source "arch/arm/mach-at91/Kconfig"
872
1d22924e
AB
873source "arch/arm/mach-axxia/Kconfig"
874
8ac49e04
CD
875source "arch/arm/mach-bcm/Kconfig"
876
1c37fa10
SH
877source "arch/arm/mach-berlin/Kconfig"
878
1da177e4
LT
879source "arch/arm/mach-clps711x/Kconfig"
880
d94f944e
AV
881source "arch/arm/mach-cns3xxx/Kconfig"
882
95b8f20f
RK
883source "arch/arm/mach-davinci/Kconfig"
884
df8d742e
BS
885source "arch/arm/mach-digicolor/Kconfig"
886
95b8f20f
RK
887source "arch/arm/mach-dove/Kconfig"
888
e7736d47
LB
889source "arch/arm/mach-ep93xx/Kconfig"
890
1da177e4
LT
891source "arch/arm/mach-footbridge/Kconfig"
892
59d3a193
PZ
893source "arch/arm/mach-gemini/Kconfig"
894
387798b3
RH
895source "arch/arm/mach-highbank/Kconfig"
896
389ee0c2
HZ
897source "arch/arm/mach-hisi/Kconfig"
898
1da177e4
LT
899source "arch/arm/mach-integrator/Kconfig"
900
3f7e5815
LB
901source "arch/arm/mach-iop32x/Kconfig"
902
903source "arch/arm/mach-iop33x/Kconfig"
1da177e4 904
285f5fa7
DW
905source "arch/arm/mach-iop13xx/Kconfig"
906
1da177e4
LT
907source "arch/arm/mach-ixp4xx/Kconfig"
908
828989ad
SS
909source "arch/arm/mach-keystone/Kconfig"
910
95b8f20f
RK
911source "arch/arm/mach-ks8695/Kconfig"
912
3b8f5030
CC
913source "arch/arm/mach-meson/Kconfig"
914
17723fd3
JJ
915source "arch/arm/mach-moxart/Kconfig"
916
794d15b2
SS
917source "arch/arm/mach-mv78xx0/Kconfig"
918
3995eb82 919source "arch/arm/mach-imx/Kconfig"
1da177e4 920
f682a218
MB
921source "arch/arm/mach-mediatek/Kconfig"
922
1d3f33d5
SG
923source "arch/arm/mach-mxs/Kconfig"
924
95b8f20f 925source "arch/arm/mach-netx/Kconfig"
49cbe786 926
95b8f20f 927source "arch/arm/mach-nomadik/Kconfig"
95b8f20f 928
9851ca57
DT
929source "arch/arm/mach-nspire/Kconfig"
930
d48af15e
TL
931source "arch/arm/plat-omap/Kconfig"
932
933source "arch/arm/mach-omap1/Kconfig"
1da177e4 934
1dbae815
TL
935source "arch/arm/mach-omap2/Kconfig"
936
9dd0b194 937source "arch/arm/mach-orion5x/Kconfig"
585cf175 938
387798b3
RH
939source "arch/arm/mach-picoxcell/Kconfig"
940
95b8f20f
RK
941source "arch/arm/mach-pxa/Kconfig"
942source "arch/arm/plat-pxa/Kconfig"
585cf175 943
95b8f20f
RK
944source "arch/arm/mach-mmp/Kconfig"
945
8fc1b0f8
KG
946source "arch/arm/mach-qcom/Kconfig"
947
95b8f20f
RK
948source "arch/arm/mach-realview/Kconfig"
949
d63dc051
HS
950source "arch/arm/mach-rockchip/Kconfig"
951
95b8f20f 952source "arch/arm/mach-sa1100/Kconfig"
edabd38e 953
387798b3
RH
954source "arch/arm/mach-socfpga/Kconfig"
955
a7ed099f 956source "arch/arm/mach-spear/Kconfig"
a21765a7 957
65ebcc11
SK
958source "arch/arm/mach-sti/Kconfig"
959
85fd6d63 960source "arch/arm/mach-s3c24xx/Kconfig"
1da177e4 961
431107ea 962source "arch/arm/mach-s3c64xx/Kconfig"
a08ab637 963
170f4e42
KK
964source "arch/arm/mach-s5pv210/Kconfig"
965
83014579 966source "arch/arm/mach-exynos/Kconfig"
e509b289 967source "arch/arm/plat-samsung/Kconfig"
cc0e72b8 968
882d01f9 969source "arch/arm/mach-shmobile/Kconfig"
52c543f9 970
3b52634f
MR
971source "arch/arm/mach-sunxi/Kconfig"
972
156a0997
BS
973source "arch/arm/mach-prima2/Kconfig"
974
c5f80065
EG
975source "arch/arm/mach-tegra/Kconfig"
976
95b8f20f 977source "arch/arm/mach-u300/Kconfig"
1da177e4 978
ba56a987
MY
979source "arch/arm/mach-uniphier/Kconfig"
980
95b8f20f 981source "arch/arm/mach-ux500/Kconfig"
1da177e4
LT
982
983source "arch/arm/mach-versatile/Kconfig"
984
ceade897 985source "arch/arm/mach-vexpress/Kconfig"
420c34e4 986source "arch/arm/plat-versatile/Kconfig"
ceade897 987
6f35f9a9
TP
988source "arch/arm/mach-vt8500/Kconfig"
989
7ec80ddf 990source "arch/arm/mach-w90x900/Kconfig"
991
9a45eb69
JC
992source "arch/arm/mach-zynq/Kconfig"
993
1da177e4
LT
994# Definitions to make life easier
995config ARCH_ACORN
996 bool
997
7ae1f7ec
LB
998config PLAT_IOP
999 bool
469d3044 1000 select GENERIC_CLOCKEVENTS
7ae1f7ec 1001
69b02f6a
LB
1002config PLAT_ORION
1003 bool
bfe45e0b 1004 select CLKSRC_MMIO
b1b3f49c 1005 select COMMON_CLK
dc7ad3b3 1006 select GENERIC_IRQ_CHIP
278b45b0 1007 select IRQ_DOMAIN
69b02f6a 1008
abcda1dc
TP
1009config PLAT_ORION_LEGACY
1010 bool
1011 select PLAT_ORION
1012
bd5ce433
EM
1013config PLAT_PXA
1014 bool
1015
f4b8b319
RK
1016config PLAT_VERSATILE
1017 bool
1018
e3887714
RK
1019config ARM_TIMER_SP804
1020 bool
bfe45e0b 1021 select CLKSRC_MMIO
7a0eca71 1022 select CLKSRC_OF if OF
e3887714 1023
d9a1beaa
AC
1024source "arch/arm/firmware/Kconfig"
1025
1da177e4
LT
1026source arch/arm/mm/Kconfig
1027
afe4b25e 1028config IWMMXT
d93003e8
SH
1029 bool "Enable iWMMXt support"
1030 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4 || CPU_PJ4B
1031 default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4 || CPU_PJ4B
afe4b25e
LB
1032 help
1033 Enable support for iWMMXt context switching at run time if
1034 running on a CPU that supports it.
1035
52108641 1036config MULTI_IRQ_HANDLER
1037 bool
1038 help
1039 Allow each machine to specify it's own IRQ handler at run time.
1040
3b93e7b0
HC
1041if !MMU
1042source "arch/arm/Kconfig-nommu"
1043endif
1044
3e0a07f8
GC
1045config PJ4B_ERRATA_4742
1046 bool "PJ4B Errata 4742: IDLE Wake Up Commands can Cause the CPU Core to Cease Operation"
1047 depends on CPU_PJ4B && MACH_ARMADA_370
1048 default y
1049 help
1050 When coming out of either a Wait for Interrupt (WFI) or a Wait for
1051 Event (WFE) IDLE states, a specific timing sensitivity exists between
1052 the retiring WFI/WFE instructions and the newly issued subsequent
1053 instructions. This sensitivity can result in a CPU hang scenario.
1054 Workaround:
1055 The software must insert either a Data Synchronization Barrier (DSB)
1056 or Data Memory Barrier (DMB) command immediately after the WFI/WFE
1057 instruction
1058
f0c4b8d6
WD
1059config ARM_ERRATA_326103
1060 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1061 depends on CPU_V6
1062 help
1063 Executing a SWP instruction to read-only memory does not set bit 11
1064 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1065 treat the access as a read, preventing a COW from occurring and
1066 causing the faulting task to livelock.
1067
9cba3ccc
CM
1068config ARM_ERRATA_411920
1069 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
e399b1a4 1070 depends on CPU_V6 || CPU_V6K
9cba3ccc
CM
1071 help
1072 Invalidation of the Instruction Cache operation can
1073 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1074 It does not affect the MPCore. This option enables the ARM Ltd.
1075 recommended workaround.
1076
7ce236fc
CM
1077config ARM_ERRATA_430973
1078 bool "ARM errata: Stale prediction on replaced interworking branch"
1079 depends on CPU_V7
1080 help
1081 This option enables the workaround for the 430973 Cortex-A8
79403cda 1082 r1p* erratum. If a code sequence containing an ARM/Thumb
7ce236fc
CM
1083 interworking branch is replaced with another code sequence at the
1084 same virtual address, whether due to self-modifying code or virtual
1085 to physical address re-mapping, Cortex-A8 does not recover from the
1086 stale interworking branch prediction. This results in Cortex-A8
1087 executing the new code sequence in the incorrect ARM or Thumb state.
1088 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1089 and also flushes the branch target cache at every context switch.
1090 Note that setting specific bits in the ACTLR register may not be
1091 available in non-secure mode.
1092
855c551f
CM
1093config ARM_ERRATA_458693
1094 bool "ARM errata: Processor deadlock when a false hazard is created"
1095 depends on CPU_V7
62e4d357 1096 depends on !ARCH_MULTIPLATFORM
855c551f
CM
1097 help
1098 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1099 erratum. For very specific sequences of memory operations, it is
1100 possible for a hazard condition intended for a cache line to instead
1101 be incorrectly associated with a different cache line. This false
1102 hazard might then cause a processor deadlock. The workaround enables
1103 the L1 caching of the NEON accesses and disables the PLD instruction
1104 in the ACTLR register. Note that setting specific bits in the ACTLR
1105 register may not be available in non-secure mode.
1106
0516e464
CM
1107config ARM_ERRATA_460075
1108 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1109 depends on CPU_V7
62e4d357 1110 depends on !ARCH_MULTIPLATFORM
0516e464
CM
1111 help
1112 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1113 erratum. Any asynchronous access to the L2 cache may encounter a
1114 situation in which recent store transactions to the L2 cache are lost
1115 and overwritten with stale memory contents from external memory. The
1116 workaround disables the write-allocate mode for the L2 cache via the
1117 ACTLR register. Note that setting specific bits in the ACTLR register
1118 may not be available in non-secure mode.
1119
9f05027c
WD
1120config ARM_ERRATA_742230
1121 bool "ARM errata: DMB operation may be faulty"
1122 depends on CPU_V7 && SMP
62e4d357 1123 depends on !ARCH_MULTIPLATFORM
9f05027c
WD
1124 help
1125 This option enables the workaround for the 742230 Cortex-A9
1126 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1127 between two write operations may not ensure the correct visibility
1128 ordering of the two writes. This workaround sets a specific bit in
1129 the diagnostic register of the Cortex-A9 which causes the DMB
1130 instruction to behave as a DSB, ensuring the correct behaviour of
1131 the two writes.
1132
a672e99b
WD
1133config ARM_ERRATA_742231
1134 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1135 depends on CPU_V7 && SMP
62e4d357 1136 depends on !ARCH_MULTIPLATFORM
a672e99b
WD
1137 help
1138 This option enables the workaround for the 742231 Cortex-A9
1139 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1140 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1141 accessing some data located in the same cache line, may get corrupted
1142 data due to bad handling of the address hazard when the line gets
1143 replaced from one of the CPUs at the same time as another CPU is
1144 accessing it. This workaround sets specific bits in the diagnostic
1145 register of the Cortex-A9 which reduces the linefill issuing
1146 capabilities of the processor.
1147
69155794
JM
1148config ARM_ERRATA_643719
1149 bool "ARM errata: LoUIS bit field in CLIDR register is incorrect"
1150 depends on CPU_V7 && SMP
e5a5de44 1151 default y
69155794
JM
1152 help
1153 This option enables the workaround for the 643719 Cortex-A9 (prior to
1154 r1p0) erratum. On affected cores the LoUIS bit field of the CLIDR
1155 register returns zero when it should return one. The workaround
1156 corrects this value, ensuring cache maintenance operations which use
1157 it behave as intended and avoiding data corruption.
1158
cdf357f1
WD
1159config ARM_ERRATA_720789
1160 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
e66dc745 1161 depends on CPU_V7
cdf357f1
WD
1162 help
1163 This option enables the workaround for the 720789 Cortex-A9 (prior to
1164 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1165 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1166 As a consequence of this erratum, some TLB entries which should be
1167 invalidated are not, resulting in an incoherency in the system page
1168 tables. The workaround changes the TLB flushing routines to invalidate
1169 entries regardless of the ASID.
475d92fc
WD
1170
1171config ARM_ERRATA_743622
1172 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1173 depends on CPU_V7
62e4d357 1174 depends on !ARCH_MULTIPLATFORM
475d92fc
WD
1175 help
1176 This option enables the workaround for the 743622 Cortex-A9
efbc74ac 1177 (r2p*) erratum. Under very rare conditions, a faulty
475d92fc
WD
1178 optimisation in the Cortex-A9 Store Buffer may lead to data
1179 corruption. This workaround sets a specific bit in the diagnostic
1180 register of the Cortex-A9 which disables the Store Buffer
1181 optimisation, preventing the defect from occurring. This has no
1182 visible impact on the overall performance or power consumption of the
1183 processor.
1184
9a27c27c
WD
1185config ARM_ERRATA_751472
1186 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
ba90c516 1187 depends on CPU_V7
62e4d357 1188 depends on !ARCH_MULTIPLATFORM
9a27c27c
WD
1189 help
1190 This option enables the workaround for the 751472 Cortex-A9 (prior
1191 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1192 completion of a following broadcasted operation if the second
1193 operation is received by a CPU before the ICIALLUIS has completed,
1194 potentially leading to corrupted entries in the cache or TLB.
1195
fcbdc5fe
WD
1196config ARM_ERRATA_754322
1197 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1198 depends on CPU_V7
1199 help
1200 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1201 r3p*) erratum. A speculative memory access may cause a page table walk
1202 which starts prior to an ASID switch but completes afterwards. This
1203 can populate the micro-TLB with a stale entry which may be hit with
1204 the new ASID. This workaround places two dsb instructions in the mm
1205 switching code so that no page table walks can cross the ASID switch.
1206
5dab26af
WD
1207config ARM_ERRATA_754327
1208 bool "ARM errata: no automatic Store Buffer drain"
1209 depends on CPU_V7 && SMP
1210 help
1211 This option enables the workaround for the 754327 Cortex-A9 (prior to
1212 r2p0) erratum. The Store Buffer does not have any automatic draining
1213 mechanism and therefore a livelock may occur if an external agent
1214 continuously polls a memory location waiting to observe an update.
1215 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1216 written polling loops from denying visibility of updates to memory.
1217
145e10e1
CM
1218config ARM_ERRATA_364296
1219 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
fd832478 1220 depends on CPU_V6
145e10e1
CM
1221 help
1222 This options enables the workaround for the 364296 ARM1136
1223 r0p2 erratum (possible cache data corruption with
1224 hit-under-miss enabled). It sets the undocumented bit 31 in
1225 the auxiliary control register and the FI bit in the control
1226 register, thus disabling hit-under-miss without putting the
1227 processor into full low interrupt latency mode. ARM11MPCore
1228 is not affected.
1229
f630c1bd
WD
1230config ARM_ERRATA_764369
1231 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1232 depends on CPU_V7 && SMP
1233 help
1234 This option enables the workaround for erratum 764369
1235 affecting Cortex-A9 MPCore with two or more processors (all
1236 current revisions). Under certain timing circumstances, a data
1237 cache line maintenance operation by MVA targeting an Inner
1238 Shareable memory region may fail to proceed up to either the
1239 Point of Coherency or to the Point of Unification of the
1240 system. This workaround adds a DSB instruction before the
1241 relevant cache maintenance functions and sets a specific bit
1242 in the diagnostic control register of the SCU.
1243
7253b85c
SH
1244config ARM_ERRATA_775420
1245 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1246 depends on CPU_V7
1247 help
1248 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1249 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1250 operation aborts with MMU exception, it might cause the processor
1251 to deadlock. This workaround puts DSB before executing ISB if
1252 an abort may occur on cache maintenance.
1253
93dc6887
CM
1254config ARM_ERRATA_798181
1255 bool "ARM errata: TLBI/DSB failure on Cortex-A15"
1256 depends on CPU_V7 && SMP
1257 help
1258 On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
1259 adequately shooting down all use of the old entries. This
1260 option enables the Linux kernel workaround for this erratum
1261 which sends an IPI to the CPUs that are running the same ASID
1262 as the one being invalidated.
1263
84b6504f
WD
1264config ARM_ERRATA_773022
1265 bool "ARM errata: incorrect instructions may be executed from loop buffer"
1266 depends on CPU_V7
1267 help
1268 This option enables the workaround for the 773022 Cortex-A15
1269 (up to r0p4) erratum. In certain rare sequences of code, the
1270 loop buffer may deliver incorrect instructions. This
1271 workaround disables the loop buffer to avoid the erratum.
1272
1da177e4
LT
1273endmenu
1274
1275source "arch/arm/common/Kconfig"
1276
1da177e4
LT
1277menu "Bus support"
1278
1da177e4
LT
1279config ISA
1280 bool
1da177e4
LT
1281 help
1282 Find out whether you have ISA slots on your motherboard. ISA is the
1283 name of a bus system, i.e. the way the CPU talks to the other stuff
1284 inside your box. Other bus systems are PCI, EISA, MicroChannel
1285 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1286 newer boards don't support it. If you have ISA, say Y, otherwise N.
1287
065909b9 1288# Select ISA DMA controller support
1da177e4
LT
1289config ISA_DMA
1290 bool
065909b9 1291 select ISA_DMA_API
1da177e4 1292
065909b9 1293# Select ISA DMA interface
5cae841b
AV
1294config ISA_DMA_API
1295 bool
5cae841b 1296
1da177e4 1297config PCI
0b05da72 1298 bool "PCI support" if MIGHT_HAVE_PCI
1da177e4
LT
1299 help
1300 Find out whether you have a PCI motherboard. PCI is the name of a
1301 bus system, i.e. the way the CPU talks to the other stuff inside
1302 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1303 VESA. If you have PCI, say Y, otherwise N.
1304
52882173
AV
1305config PCI_DOMAINS
1306 bool
1307 depends on PCI
1308
8c7d1474
LP
1309config PCI_DOMAINS_GENERIC
1310 def_bool PCI_DOMAINS
1311
b080ac8a
MRJ
1312config PCI_NANOENGINE
1313 bool "BSE nanoEngine PCI support"
1314 depends on SA1100_NANOENGINE
1315 help
1316 Enable PCI on the BSE nanoEngine board.
1317
36e23590
MW
1318config PCI_SYSCALL
1319 def_bool PCI
1320
a0113a99
MR
1321config PCI_HOST_ITE8152
1322 bool
1323 depends on PCI && MACH_ARMCORE
1324 default y
1325 select DMABOUNCE
1326
1da177e4 1327source "drivers/pci/Kconfig"
3f06d157 1328source "drivers/pci/pcie/Kconfig"
1da177e4
LT
1329
1330source "drivers/pcmcia/Kconfig"
1331
1332endmenu
1333
1334menu "Kernel Features"
1335
3b55658a
DM
1336config HAVE_SMP
1337 bool
1338 help
1339 This option should be selected by machines which have an SMP-
1340 capable CPU.
1341
1342 The only effect of this option is to make the SMP-related
1343 options available to the user for configuration.
1344
1da177e4 1345config SMP
bb2d8130 1346 bool "Symmetric Multi-Processing"
fbb4ddac 1347 depends on CPU_V6K || CPU_V7
bc28248e 1348 depends on GENERIC_CLOCKEVENTS
3b55658a 1349 depends on HAVE_SMP
801bb21c 1350 depends on MMU || ARM_MPU
1da177e4
LT
1351 help
1352 This enables support for systems with more than one CPU. If you have
4a474157
RG
1353 a system with only one CPU, say N. If you have a system with more
1354 than one CPU, say Y.
1da177e4 1355
4a474157 1356 If you say N here, the kernel will run on uni- and multiprocessor
1da177e4 1357 machines, but will use only one CPU of a multiprocessor machine. If
4a474157
RG
1358 you say Y here, the kernel will run on many, but not all,
1359 uniprocessor machines. On a uniprocessor machine, the kernel
1360 will run faster if you say N here.
1da177e4 1361
395cf969 1362 See also <file:Documentation/x86/i386/IO-APIC.txt>,
1da177e4 1363 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
50a23e6e 1364 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
1da177e4
LT
1365
1366 If you don't know what to do here, say N.
1367
f00ec48f 1368config SMP_ON_UP
5744ff43 1369 bool "Allow booting SMP kernel on uniprocessor systems"
801bb21c 1370 depends on SMP && !XIP_KERNEL && MMU
f00ec48f
RK
1371 default y
1372 help
1373 SMP kernels contain instructions which fail on non-SMP processors.
1374 Enabling this option allows the kernel to modify itself to make
1375 these instructions safe. Disabling it allows about 1K of space
1376 savings.
1377
1378 If you don't know what to do here, say Y.
1379
c9018aab
VG
1380config ARM_CPU_TOPOLOGY
1381 bool "Support cpu topology definition"
1382 depends on SMP && CPU_V7
1383 default y
1384 help
1385 Support ARM cpu topology definition. The MPIDR register defines
1386 affinity between processors which is then used to describe the cpu
1387 topology of an ARM System.
1388
1389config SCHED_MC
1390 bool "Multi-core scheduler support"
1391 depends on ARM_CPU_TOPOLOGY
1392 help
1393 Multi-core scheduler support improves the CPU scheduler's decision
1394 making when dealing with multi-core CPU chips at a cost of slightly
1395 increased overhead in some places. If unsure say N here.
1396
1397config SCHED_SMT
1398 bool "SMT scheduler support"
1399 depends on ARM_CPU_TOPOLOGY
1400 help
1401 Improves the CPU scheduler's decision making when dealing with
1402 MultiThreading at a cost of slightly increased overhead in some
1403 places. If unsure say N here.
1404
a8cbcd92
RK
1405config HAVE_ARM_SCU
1406 bool
a8cbcd92
RK
1407 help
1408 This option enables support for the ARM system coherency unit
1409
8a4da6e3 1410config HAVE_ARM_ARCH_TIMER
022c03a2
MZ
1411 bool "Architected timer support"
1412 depends on CPU_V7
8a4da6e3 1413 select ARM_ARCH_TIMER
0c403462 1414 select GENERIC_CLOCKEVENTS
022c03a2
MZ
1415 help
1416 This option enables support for the ARM architected timer
1417
f32f4ce2
RK
1418config HAVE_ARM_TWD
1419 bool
1420 depends on SMP
da4a686a 1421 select CLKSRC_OF if OF
f32f4ce2
RK
1422 help
1423 This options enables support for the ARM timer and watchdog unit
1424
e8db288e
NP
1425config MCPM
1426 bool "Multi-Cluster Power Management"
1427 depends on CPU_V7 && SMP
1428 help
1429 This option provides the common power management infrastructure
1430 for (multi-)cluster based systems, such as big.LITTLE based
1431 systems.
1432
ebf4a5c5
HZ
1433config MCPM_QUAD_CLUSTER
1434 bool
1435 depends on MCPM
1436 help
1437 To avoid wasting resources unnecessarily, MCPM only supports up
1438 to 2 clusters by default.
1439 Platforms with 3 or 4 clusters that use MCPM must select this
1440 option to allow the additional clusters to be managed.
1441
1c33be57
NP
1442config BIG_LITTLE
1443 bool "big.LITTLE support (Experimental)"
1444 depends on CPU_V7 && SMP
1445 select MCPM
1446 help
1447 This option enables support selections for the big.LITTLE
1448 system architecture.
1449
1450config BL_SWITCHER
1451 bool "big.LITTLE switcher support"
1452 depends on BIG_LITTLE && MCPM && HOTPLUG_CPU
1c33be57 1453 select ARM_CPU_SUSPEND
51aaf81f 1454 select CPU_PM
1c33be57
NP
1455 help
1456 The big.LITTLE "switcher" provides the core functionality to
1457 transparently handle transition between a cluster of A15's
1458 and a cluster of A7's in a big.LITTLE system.
1459
b22537c6
NP
1460config BL_SWITCHER_DUMMY_IF
1461 tristate "Simple big.LITTLE switcher user interface"
1462 depends on BL_SWITCHER && DEBUG_KERNEL
1463 help
1464 This is a simple and dummy char dev interface to control
1465 the big.LITTLE switcher core code. It is meant for
1466 debugging purposes only.
1467
8d5796d2
LB
1468choice
1469 prompt "Memory split"
006fa259 1470 depends on MMU
8d5796d2
LB
1471 default VMSPLIT_3G
1472 help
1473 Select the desired split between kernel and user memory.
1474
1475 If you are not absolutely sure what you are doing, leave this
1476 option alone!
1477
1478 config VMSPLIT_3G
1479 bool "3G/1G user/kernel split"
1480 config VMSPLIT_2G
1481 bool "2G/2G user/kernel split"
1482 config VMSPLIT_1G
1483 bool "1G/3G user/kernel split"
1484endchoice
1485
1486config PAGE_OFFSET
1487 hex
006fa259 1488 default PHYS_OFFSET if !MMU
8d5796d2
LB
1489 default 0x40000000 if VMSPLIT_1G
1490 default 0x80000000 if VMSPLIT_2G
1491 default 0xC0000000
1492
1da177e4
LT
1493config NR_CPUS
1494 int "Maximum number of CPUs (2-32)"
1495 range 2 32
1496 depends on SMP
1497 default "4"
1498
a054a811 1499config HOTPLUG_CPU
00b7dede 1500 bool "Support for hot-pluggable CPUs"
40b31360 1501 depends on SMP
a054a811
RK
1502 help
1503 Say Y here to experiment with turning CPUs off and on. CPUs
1504 can be controlled through /sys/devices/system/cpu.
1505
2bdd424f
WD
1506config ARM_PSCI
1507 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1508 depends on CPU_V7
1509 help
1510 Say Y here if you want Linux to communicate with system firmware
1511 implementing the PSCI specification for CPU-centric power
1512 management operations described in ARM document number ARM DEN
1513 0022A ("Power State Coordination Interface System Software on
1514 ARM processors").
1515
2a6ad871
MR
1516# The GPIO number here must be sorted by descending number. In case of
1517# a multiplatform kernel, we just want the highest value required by the
1518# selected platforms.
44986ab0
PDSN
1519config ARCH_NR_GPIO
1520 int
6a4d8f36 1521 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA || ARCH_ZYNQ
aa42587a
TF
1522 default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || \
1523 SOC_DRA7XX || ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210
eb171a99 1524 default 416 if ARCH_SUNXI
06b851e5 1525 default 392 if ARCH_U8500
01bb914c 1526 default 352 if ARCH_VT8500
7b5da4c3 1527 default 288 if ARCH_ROCKCHIP
2a6ad871 1528 default 264 if MACH_H4700
44986ab0
PDSN
1529 default 0
1530 help
1531 Maximum number of GPIOs in the system.
1532
1533 If unsure, leave the default value.
1534
d45a398f 1535source kernel/Kconfig.preempt
1da177e4 1536
c9218b16 1537config HZ_FIXED
f8065813 1538 int
070b8b43 1539 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || \
a73ddc61 1540 ARCH_S5PV210 || ARCH_EXYNOS4
1164f672 1541 default 128 if SOC_AT91RM9200
bf98c1ea 1542 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE_LEGACY
47d84682 1543 default 0
c9218b16
RK
1544
1545choice
47d84682 1546 depends on HZ_FIXED = 0
c9218b16
RK
1547 prompt "Timer frequency"
1548
1549config HZ_100
1550 bool "100 Hz"
1551
1552config HZ_200
1553 bool "200 Hz"
1554
1555config HZ_250
1556 bool "250 Hz"
1557
1558config HZ_300
1559 bool "300 Hz"
1560
1561config HZ_500
1562 bool "500 Hz"
1563
1564config HZ_1000
1565 bool "1000 Hz"
1566
1567endchoice
1568
1569config HZ
1570 int
47d84682 1571 default HZ_FIXED if HZ_FIXED != 0
c9218b16
RK
1572 default 100 if HZ_100
1573 default 200 if HZ_200
1574 default 250 if HZ_250
1575 default 300 if HZ_300
1576 default 500 if HZ_500
1577 default 1000
1578
1579config SCHED_HRTICK
1580 def_bool HIGH_RES_TIMERS
f8065813 1581
16c79651 1582config THUMB2_KERNEL
bc7dea00 1583 bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
4477ca45 1584 depends on (CPU_V7 || CPU_V7M) && !CPU_V6 && !CPU_V6K
bc7dea00 1585 default y if CPU_THUMBONLY
16c79651
CM
1586 select AEABI
1587 select ARM_ASM_UNIFIED
89bace65 1588 select ARM_UNWIND
16c79651
CM
1589 help
1590 By enabling this option, the kernel will be compiled in
1591 Thumb-2 mode. A compiler/assembler that understand the unified
1592 ARM-Thumb syntax is needed.
1593
1594 If unsure, say N.
1595
6f685c5c
DM
1596config THUMB2_AVOID_R_ARM_THM_JUMP11
1597 bool "Work around buggy Thumb-2 short branch relocations in gas"
1598 depends on THUMB2_KERNEL && MODULES
1599 default y
1600 help
1601 Various binutils versions can resolve Thumb-2 branches to
1602 locally-defined, preemptible global symbols as short-range "b.n"
1603 branch instructions.
1604
1605 This is a problem, because there's no guarantee the final
1606 destination of the symbol, or any candidate locations for a
1607 trampoline, are within range of the branch. For this reason, the
1608 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1609 relocation in modules at all, and it makes little sense to add
1610 support.
1611
1612 The symptom is that the kernel fails with an "unsupported
1613 relocation" error when loading some modules.
1614
1615 Until fixed tools are available, passing
1616 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1617 code which hits this problem, at the cost of a bit of extra runtime
1618 stack usage in some cases.
1619
1620 The problem is described in more detail at:
1621 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1622
1623 Only Thumb-2 kernels are affected.
1624
1625 Unless you are sure your tools don't have this problem, say Y.
1626
0becb088
CM
1627config ARM_ASM_UNIFIED
1628 bool
1629
704bdda0
NP
1630config AEABI
1631 bool "Use the ARM EABI to compile the kernel"
1632 help
1633 This option allows for the kernel to be compiled using the latest
1634 ARM ABI (aka EABI). This is only useful if you are using a user
1635 space environment that is also compiled with EABI.
1636
1637 Since there are major incompatibilities between the legacy ABI and
1638 EABI, especially with regard to structure member alignment, this
1639 option also changes the kernel syscall calling convention to
1640 disambiguate both ABIs and allow for backward compatibility support
1641 (selected with CONFIG_OABI_COMPAT).
1642
1643 To use this you need GCC version 4.0.0 or later.
1644
6c90c872 1645config OABI_COMPAT
a73a3ff1 1646 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
d6f94fa0 1647 depends on AEABI && !THUMB2_KERNEL
6c90c872
NP
1648 help
1649 This option preserves the old syscall interface along with the
1650 new (ARM EABI) one. It also provides a compatibility layer to
1651 intercept syscalls that have structure arguments which layout
1652 in memory differs between the legacy ABI and the new ARM EABI
1653 (only for non "thumb" binaries). This option adds a tiny
1654 overhead to all syscalls and produces a slightly larger kernel.
91702175
KC
1655
1656 The seccomp filter system will not be available when this is
1657 selected, since there is no way yet to sensibly distinguish
1658 between calling conventions during filtering.
1659
6c90c872
NP
1660 If you know you'll be using only pure EABI user space then you
1661 can say N here. If this option is not selected and you attempt
1662 to execute a legacy ABI binary then the result will be
1663 UNPREDICTABLE (in fact it can be predicted that it won't work
b02f8467 1664 at all). If in doubt say N.
6c90c872 1665
eb33575c 1666config ARCH_HAS_HOLES_MEMORYMODEL
e80d6a24 1667 bool
e80d6a24 1668
05944d74
RK
1669config ARCH_SPARSEMEM_ENABLE
1670 bool
1671
07a2f737
RK
1672config ARCH_SPARSEMEM_DEFAULT
1673 def_bool ARCH_SPARSEMEM_ENABLE
1674
05944d74 1675config ARCH_SELECT_MEMORY_MODEL
be370302 1676 def_bool ARCH_SPARSEMEM_ENABLE
c80d79d7 1677
7b7bf499
WD
1678config HAVE_ARCH_PFN_VALID
1679 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1680
b8cd51af
SC
1681config HAVE_GENERIC_RCU_GUP
1682 def_bool y
1683 depends on ARM_LPAE
1684
053a96ca 1685config HIGHMEM
e8db89a2
RK
1686 bool "High Memory Support"
1687 depends on MMU
053a96ca
NP
1688 help
1689 The address space of ARM processors is only 4 Gigabytes large
1690 and it has to accommodate user address space, kernel address
1691 space as well as some memory mapped IO. That means that, if you
1692 have a large amount of physical memory and/or IO, not all of the
1693 memory can be "permanently mapped" by the kernel. The physical
1694 memory that is not permanently mapped is called "high memory".
1695
1696 Depending on the selected kernel/user memory split, minimum
1697 vmalloc space and actual amount of RAM, you may not need this
1698 option which should result in a slightly faster kernel.
1699
1700 If unsure, say n.
1701
65cec8e3
RK
1702config HIGHPTE
1703 bool "Allocate 2nd-level pagetables from highmem"
1704 depends on HIGHMEM
65cec8e3 1705
1b8873a0
JI
1706config HW_PERF_EVENTS
1707 bool "Enable hardware performance counter support for perf events"
f0d1bc47 1708 depends on PERF_EVENTS
1b8873a0
JI
1709 default y
1710 help
1711 Enable hardware performance counter support for perf events. If
1712 disabled, perf events will use software events only.
1713
1355e2a6
CM
1714config SYS_SUPPORTS_HUGETLBFS
1715 def_bool y
1716 depends on ARM_LPAE
1717
8d962507
CM
1718config HAVE_ARCH_TRANSPARENT_HUGEPAGE
1719 def_bool y
1720 depends on ARM_LPAE
1721
4bfab203
SC
1722config ARCH_WANT_GENERAL_HUGETLB
1723 def_bool y
1724
3f22ab27
DH
1725source "mm/Kconfig"
1726
c1b2d970 1727config FORCE_MAX_ZONEORDER
bf98c1ea
LP
1728 int "Maximum zone order" if ARCH_SHMOBILE_LEGACY
1729 range 11 64 if ARCH_SHMOBILE_LEGACY
898f08e1 1730 default "12" if SOC_AM33XX
6d85e2b0 1731 default "9" if SA1111 || ARCH_EFM32
c1b2d970
MD
1732 default "11"
1733 help
1734 The kernel memory allocator divides physically contiguous memory
1735 blocks into "zones", where each zone is a power of two number of
1736 pages. This option selects the largest power of two that the kernel
1737 keeps in the memory allocator. If you need to allocate very large
1738 blocks of physically contiguous memory, then you may need to
1739 increase this value.
1740
1741 This config option is actually maximum order plus one. For example,
1742 a value of 11 means that the largest free memory block is 2^10 pages.
1743
1da177e4
LT
1744config ALIGNMENT_TRAP
1745 bool
f12d0d7c 1746 depends on CPU_CP15_MMU
1da177e4 1747 default y if !ARCH_EBSA110
e119bfff 1748 select HAVE_PROC_CPU if PROC_FS
1da177e4 1749 help
84eb8d06 1750 ARM processors cannot fetch/store information which is not
1da177e4
LT
1751 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1752 address divisible by 4. On 32-bit ARM processors, these non-aligned
1753 fetch/store instructions will be emulated in software if you say
1754 here, which has a severe performance impact. This is necessary for
1755 correct operation of some network protocols. With an IP-only
1756 configuration it is safe to say N, otherwise say Y.
1757
39ec58f3 1758config UACCESS_WITH_MEMCPY
38ef2ad5
LW
1759 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1760 depends on MMU
39ec58f3
LB
1761 default y if CPU_FEROCEON
1762 help
1763 Implement faster copy_to_user and clear_user methods for CPU
1764 cores where a 8-word STM instruction give significantly higher
1765 memory write throughput than a sequence of individual 32bit stores.
1766
1767 A possible side effect is a slight increase in scheduling latency
1768 between threads sharing the same address space if they invoke
1769 such copy operations with large buffers.
1770
1771 However, if the CPU data cache is using a write-allocate mode,
1772 this option is unlikely to provide any performance gain.
1773
70c70d97
NP
1774config SECCOMP
1775 bool
1776 prompt "Enable seccomp to safely compute untrusted bytecode"
1777 ---help---
1778 This kernel feature is useful for number crunching applications
1779 that may need to compute untrusted bytecode during their
1780 execution. By using pipes or other transports made available to
1781 the process as file descriptors supporting the read/write
1782 syscalls, it's possible to isolate those applications in
1783 their own address space using seccomp. Once seccomp is
1784 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1785 and the task is only allowed to execute a few safe syscalls
1786 defined by each seccomp mode.
1787
06e6295b
SS
1788config SWIOTLB
1789 def_bool y
1790
1791config IOMMU_HELPER
1792 def_bool SWIOTLB
1793
eff8d644
SS
1794config XEN_DOM0
1795 def_bool y
1796 depends on XEN
1797
1798config XEN
c2ba1f7d 1799 bool "Xen guest support on ARM"
85323a99 1800 depends on ARM && AEABI && OF
f880b67d 1801 depends on CPU_V7 && !CPU_V6
85323a99 1802 depends on !GENERIC_ATOMIC64
7693decc 1803 depends on MMU
51aaf81f 1804 select ARCH_DMA_ADDR_T_64BIT
17b7ab80 1805 select ARM_PSCI
83862ccf 1806 select SWIOTLB_XEN
eff8d644
SS
1807 help
1808 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1809
1da177e4
LT
1810endmenu
1811
1812menu "Boot options"
1813
9eb8f674
GL
1814config USE_OF
1815 bool "Flattened Device Tree support"
b1b3f49c 1816 select IRQ_DOMAIN
9eb8f674
GL
1817 select OF
1818 select OF_EARLY_FLATTREE
bcedb5f9 1819 select OF_RESERVED_MEM
9eb8f674
GL
1820 help
1821 Include support for flattened device tree machine descriptions.
1822
bd51e2f5
NP
1823config ATAGS
1824 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1825 default y
1826 help
1827 This is the traditional way of passing data to the kernel at boot
1828 time. If you are solely relying on the flattened device tree (or
1829 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1830 to remove ATAGS support from your kernel binary. If unsure,
1831 leave this to y.
1832
1833config DEPRECATED_PARAM_STRUCT
1834 bool "Provide old way to pass kernel parameters"
1835 depends on ATAGS
1836 help
1837 This was deprecated in 2001 and announced to live on for 5 years.
1838 Some old boot loaders still use this way.
1839
1da177e4
LT
1840# Compressed boot loader in ROM. Yes, we really want to ask about
1841# TEXT and BSS so we preserve their values in the config files.
1842config ZBOOT_ROM_TEXT
1843 hex "Compressed ROM boot loader base address"
1844 default "0"
1845 help
1846 The physical address at which the ROM-able zImage is to be
1847 placed in the target. Platforms which normally make use of
1848 ROM-able zImage formats normally set this to a suitable
1849 value in their defconfig file.
1850
1851 If ZBOOT_ROM is not enabled, this has no effect.
1852
1853config ZBOOT_ROM_BSS
1854 hex "Compressed ROM boot loader BSS address"
1855 default "0"
1856 help
f8c440b2
DF
1857 The base address of an area of read/write memory in the target
1858 for the ROM-able zImage which must be available while the
1859 decompressor is running. It must be large enough to hold the
1860 entire decompressed kernel plus an additional 128 KiB.
1861 Platforms which normally make use of ROM-able zImage formats
1862 normally set this to a suitable value in their defconfig file.
1da177e4
LT
1863
1864 If ZBOOT_ROM is not enabled, this has no effect.
1865
1866config ZBOOT_ROM
1867 bool "Compressed boot loader in ROM/flash"
1868 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
10968131 1869 depends on !ARM_APPENDED_DTB && !XIP_KERNEL && !AUTO_ZRELADDR
1da177e4
LT
1870 help
1871 Say Y here if you intend to execute your compressed kernel image
1872 (zImage) directly from ROM or flash. If unsure, say N.
1873
e2a6a3aa
JB
1874config ARM_APPENDED_DTB
1875 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
10968131 1876 depends on OF
e2a6a3aa
JB
1877 help
1878 With this option, the boot code will look for a device tree binary
1879 (DTB) appended to zImage
1880 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1881
1882 This is meant as a backward compatibility convenience for those
1883 systems with a bootloader that can't be upgraded to accommodate
1884 the documented boot protocol using a device tree.
1885
1886 Beware that there is very little in terms of protection against
1887 this option being confused by leftover garbage in memory that might
1888 look like a DTB header after a reboot if no actual DTB is appended
1889 to zImage. Do not leave this option active in a production kernel
1890 if you don't intend to always append a DTB. Proper passing of the
1891 location into r2 of a bootloader provided DTB is always preferable
1892 to this option.
1893
b90b9a38
NP
1894config ARM_ATAG_DTB_COMPAT
1895 bool "Supplement the appended DTB with traditional ATAG information"
1896 depends on ARM_APPENDED_DTB
1897 help
1898 Some old bootloaders can't be updated to a DTB capable one, yet
1899 they provide ATAGs with memory configuration, the ramdisk address,
1900 the kernel cmdline string, etc. Such information is dynamically
1901 provided by the bootloader and can't always be stored in a static
1902 DTB. To allow a device tree enabled kernel to be used with such
1903 bootloaders, this option allows zImage to extract the information
1904 from the ATAG list and store it at run time into the appended DTB.
1905
d0f34a11
GR
1906choice
1907 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
1908 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1909
1910config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1911 bool "Use bootloader kernel arguments if available"
1912 help
1913 Uses the command-line options passed by the boot loader instead of
1914 the device tree bootargs property. If the boot loader doesn't provide
1915 any, the device tree bootargs property will be used.
1916
1917config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
1918 bool "Extend with bootloader kernel arguments"
1919 help
1920 The command-line arguments provided by the boot loader will be
1921 appended to the the device tree bootargs property.
1922
1923endchoice
1924
1da177e4
LT
1925config CMDLINE
1926 string "Default kernel command string"
1927 default ""
1928 help
1929 On some architectures (EBSA110 and CATS), there is currently no way
1930 for the boot loader to pass arguments to the kernel. For these
1931 architectures, you should supply some command-line options at build
1932 time by entering them here. As a minimum, you should specify the
1933 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1934
4394c124
VB
1935choice
1936 prompt "Kernel command line type" if CMDLINE != ""
1937 default CMDLINE_FROM_BOOTLOADER
bd51e2f5 1938 depends on ATAGS
4394c124
VB
1939
1940config CMDLINE_FROM_BOOTLOADER
1941 bool "Use bootloader kernel arguments if available"
1942 help
1943 Uses the command-line options passed by the boot loader. If
1944 the boot loader doesn't provide any, the default kernel command
1945 string provided in CMDLINE will be used.
1946
1947config CMDLINE_EXTEND
1948 bool "Extend bootloader kernel arguments"
1949 help
1950 The command-line arguments provided by the boot loader will be
1951 appended to the default kernel command string.
1952
92d2040d
AH
1953config CMDLINE_FORCE
1954 bool "Always use the default kernel command string"
92d2040d
AH
1955 help
1956 Always use the default kernel command string, even if the boot
1957 loader passes other arguments to the kernel.
1958 This is useful if you cannot or don't want to change the
1959 command-line options your boot loader passes to the kernel.
4394c124 1960endchoice
92d2040d 1961
1da177e4
LT
1962config XIP_KERNEL
1963 bool "Kernel Execute-In-Place from ROM"
10968131 1964 depends on !ARM_LPAE && !ARCH_MULTIPLATFORM
1da177e4
LT
1965 help
1966 Execute-In-Place allows the kernel to run from non-volatile storage
1967 directly addressable by the CPU, such as NOR flash. This saves RAM
1968 space since the text section of the kernel is not loaded from flash
1969 to RAM. Read-write sections, such as the data section and stack,
1970 are still copied to RAM. The XIP kernel is not compressed since
1971 it has to run directly from flash, so it will take more space to
1972 store it. The flash address used to link the kernel object files,
1973 and for storing it, is configuration dependent. Therefore, if you
1974 say Y here, you must know the proper physical address where to
1975 store the kernel image depending on your own flash memory usage.
1976
1977 Also note that the make target becomes "make xipImage" rather than
1978 "make zImage" or "make Image". The final kernel binary to put in
1979 ROM memory will be arch/arm/boot/xipImage.
1980
1981 If unsure, say N.
1982
1983config XIP_PHYS_ADDR
1984 hex "XIP Kernel Physical Location"
1985 depends on XIP_KERNEL
1986 default "0x00080000"
1987 help
1988 This is the physical address in your flash memory the kernel will
1989 be linked for and stored to. This address is dependent on your
1990 own flash usage.
1991
c587e4a6
RP
1992config KEXEC
1993 bool "Kexec system call (EXPERIMENTAL)"
19ab428f 1994 depends on (!SMP || PM_SLEEP_SMP)
c587e4a6
RP
1995 help
1996 kexec is a system call that implements the ability to shutdown your
1997 current kernel, and to start another kernel. It is like a reboot
01dd2fbf 1998 but it is independent of the system firmware. And like a reboot
c587e4a6
RP
1999 you can start any kernel with it, not just Linux.
2000
2001 It is an ongoing process to be certain the hardware in a machine
2002 is properly shutdown, so do not be surprised if this code does not
bf220695 2003 initially work for you.
c587e4a6 2004
4cd9d6f7
RP
2005config ATAGS_PROC
2006 bool "Export atags in procfs"
bd51e2f5 2007 depends on ATAGS && KEXEC
b98d7291 2008 default y
4cd9d6f7
RP
2009 help
2010 Should the atags used to boot the kernel be exported in an "atags"
2011 file in procfs. Useful with kexec.
2012
cb5d39b3
MW
2013config CRASH_DUMP
2014 bool "Build kdump crash kernel (EXPERIMENTAL)"
cb5d39b3
MW
2015 help
2016 Generate crash dump after being started by kexec. This should
2017 be normally only set in special crash dump kernels which are
2018 loaded in the main kernel with kexec-tools into a specially
2019 reserved region and then later executed after a crash by
2020 kdump/kexec. The crash dump kernel must be compiled to a
2021 memory address not used by the main kernel
2022
2023 For more details see Documentation/kdump/kdump.txt
2024
e69edc79
EM
2025config AUTO_ZRELADDR
2026 bool "Auto calculation of the decompressed kernel image address"
e69edc79
EM
2027 help
2028 ZRELADDR is the physical address where the decompressed kernel
2029 image will be placed. If AUTO_ZRELADDR is selected, the address
2030 will be determined at run-time by masking the current IP with
2031 0xf8000000. This assumes the zImage being placed in the first 128MB
2032 from start of memory.
2033
1da177e4
LT
2034endmenu
2035
ac9d7efc 2036menu "CPU Power Management"
1da177e4 2037
1da177e4 2038source "drivers/cpufreq/Kconfig"
1da177e4 2039
ac9d7efc
RK
2040source "drivers/cpuidle/Kconfig"
2041
2042endmenu
2043
1da177e4
LT
2044menu "Floating point emulation"
2045
2046comment "At least one emulation must be selected"
2047
2048config FPE_NWFPE
2049 bool "NWFPE math emulation"
593c252a 2050 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
1da177e4
LT
2051 ---help---
2052 Say Y to include the NWFPE floating point emulator in the kernel.
2053 This is necessary to run most binaries. Linux does not currently
2054 support floating point hardware so you need to say Y here even if
2055 your machine has an FPA or floating point co-processor podule.
2056
2057 You may say N here if you are going to load the Acorn FPEmulator
2058 early in the bootup.
2059
2060config FPE_NWFPE_XP
2061 bool "Support extended precision"
bedf142b 2062 depends on FPE_NWFPE
1da177e4
LT
2063 help
2064 Say Y to include 80-bit support in the kernel floating-point
2065 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2066 Note that gcc does not generate 80-bit operations by default,
2067 so in most cases this option only enlarges the size of the
2068 floating point emulator without any good reason.
2069
2070 You almost surely want to say N here.
2071
2072config FPE_FASTFPE
2073 bool "FastFPE math emulation (EXPERIMENTAL)"
d6f94fa0 2074 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
1da177e4
LT
2075 ---help---
2076 Say Y here to include the FAST floating point emulator in the kernel.
2077 This is an experimental much faster emulator which now also has full
2078 precision for the mantissa. It does not support any exceptions.
2079 It is very simple, and approximately 3-6 times faster than NWFPE.
2080
2081 It should be sufficient for most programs. It may be not suitable
2082 for scientific calculations, but you have to check this for yourself.
2083 If you do not feel you need a faster FP emulation you should better
2084 choose NWFPE.
2085
2086config VFP
2087 bool "VFP-format floating point maths"
e399b1a4 2088 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
1da177e4
LT
2089 help
2090 Say Y to include VFP support code in the kernel. This is needed
2091 if your hardware includes a VFP unit.
2092
2093 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2094 release notes and additional status information.
2095
2096 Say N if your target does not have VFP hardware.
2097
25ebee02
CM
2098config VFPv3
2099 bool
2100 depends on VFP
2101 default y if CPU_V7
2102
b5872db4
CM
2103config NEON
2104 bool "Advanced SIMD (NEON) Extension support"
2105 depends on VFPv3 && CPU_V7
2106 help
2107 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2108 Extension.
2109
73c132c1
AB
2110config KERNEL_MODE_NEON
2111 bool "Support for NEON in kernel mode"
c4a30c3b 2112 depends on NEON && AEABI
73c132c1
AB
2113 help
2114 Say Y to include support for NEON in kernel mode.
2115
1da177e4
LT
2116endmenu
2117
2118menu "Userspace binary formats"
2119
2120source "fs/Kconfig.binfmt"
2121
1da177e4
LT
2122endmenu
2123
2124menu "Power management options"
2125
eceab4ac 2126source "kernel/power/Kconfig"
1da177e4 2127
f4cb5700 2128config ARCH_SUSPEND_POSSIBLE
19a0519d 2129 depends on CPU_ARM920T || CPU_ARM926T || CPU_FEROCEON || CPU_SA1100 || \
f0d75153 2130 CPU_V6 || CPU_V6K || CPU_V7 || CPU_V7M || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
f4cb5700
JB
2131 def_bool y
2132
15e0d9e3
AB
2133config ARM_CPU_SUSPEND
2134 def_bool PM_SLEEP
2135
603fb42a
SC
2136config ARCH_HIBERNATION_POSSIBLE
2137 bool
2138 depends on MMU
2139 default y if ARCH_SUSPEND_POSSIBLE
2140
1da177e4
LT
2141endmenu
2142
d5950b43
SR
2143source "net/Kconfig"
2144
ac25150f 2145source "drivers/Kconfig"
1da177e4 2146
916f743d
KG
2147source "drivers/firmware/Kconfig"
2148
1da177e4
LT
2149source "fs/Kconfig"
2150
1da177e4
LT
2151source "arch/arm/Kconfig.debug"
2152
2153source "security/Kconfig"
2154
2155source "crypto/Kconfig"
652ccae5
AB
2156if CRYPTO
2157source "arch/arm/crypto/Kconfig"
2158endif
1da177e4
LT
2159
2160source "lib/Kconfig"
749cf76c
CD
2161
2162source "arch/arm/kvm/Kconfig"
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