ARM: meson: debug: add debug UART for earlyprintk support
[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
4477ca45 17 select GENERIC_ATOMIC64 if (CPU_V7M || CPU_V6 || !CPU_32v6K || !AEABI)
b1b3f49c 18 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
171b3f0d 19 select GENERIC_IDLE_POLL_SETUP
b1b3f49c
RK
20 select GENERIC_IRQ_PROBE
21 select GENERIC_IRQ_SHOW
b1b3f49c 22 select GENERIC_PCI_IOMAP
38ff87f7 23 select GENERIC_SCHED_CLOCK
b1b3f49c
RK
24 select GENERIC_SMP_IDLE_THREAD
25 select GENERIC_STRNCPY_FROM_USER
26 select GENERIC_STRNLEN_USER
27 select HARDIRQS_SW_RESEND
7a017721 28 select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
09f05d85 29 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
5cbad0eb 30 select HAVE_ARCH_KGDB
91702175 31 select HAVE_ARCH_SECCOMP_FILTER if (AEABI && !OABI_COMPAT)
0693bf68 32 select HAVE_ARCH_TRACEHOOK
b1b3f49c 33 select HAVE_BPF_JIT
51aaf81f 34 select HAVE_CC_STACKPROTECTOR
171b3f0d 35 select HAVE_CONTEXT_TRACKING
b1b3f49c
RK
36 select HAVE_C_RECORDMCOUNT
37 select HAVE_DEBUG_KMEMLEAK
38 select HAVE_DMA_API_DEBUG
39 select HAVE_DMA_ATTRS
40 select HAVE_DMA_CONTIGUOUS if MMU
80be7a7f 41 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
dce5c9e3 42 select HAVE_EFFICIENT_UNALIGNED_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && MMU
b1b3f49c 43 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
0e341af8 44 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
b1b3f49c 45 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
1fe53268 46 select HAVE_GENERIC_DMA_COHERENT
b1b3f49c
RK
47 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
48 select HAVE_IDE if PCI || ISA || PCMCIA
87c46b6c 49 select HAVE_IRQ_TIME_ACCOUNTING
e7db7b42 50 select HAVE_KERNEL_GZIP
f9b493ac 51 select HAVE_KERNEL_LZ4
6e8699f7 52 select HAVE_KERNEL_LZMA
b1b3f49c 53 select HAVE_KERNEL_LZO
a7f464f3 54 select HAVE_KERNEL_XZ
b1b3f49c
RK
55 select HAVE_KPROBES if !XIP_KERNEL
56 select HAVE_KRETPROBES if (HAVE_KPROBES)
57 select HAVE_MEMBLOCK
171b3f0d 58 select HAVE_MOD_ARCH_SPECIFIC if ARM_UNWIND
b1b3f49c 59 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
7ada189f 60 select HAVE_PERF_EVENTS
49863894
WD
61 select HAVE_PERF_REGS
62 select HAVE_PERF_USER_STACK_DUMP
e513f8bf 63 select HAVE_REGS_AND_STACK_ACCESS_API
b1b3f49c 64 select HAVE_SYSCALL_TRACEPOINTS
af1839eb 65 select HAVE_UID16
31c1fc81 66 select HAVE_VIRT_CPU_ACCOUNTING_GEN
da0ec6f7 67 select IRQ_FORCED_THREADING
171b3f0d 68 select MODULES_USE_ELF_REL
84f452b1 69 select NO_BOOTMEM
171b3f0d
RK
70 select OLD_SIGACTION
71 select OLD_SIGSUSPEND3
b1b3f49c
RK
72 select PERF_USE_VMALLOC
73 select RTC_LIB
74 select SYS_SUPPORTS_APM_EMULATION
171b3f0d
RK
75 # Above selects are sorted alphabetically; please add new ones
76 # according to that. Thanks.
1da177e4
LT
77 help
78 The ARM series is a line of low-power-consumption RISC chip designs
f6c8965a 79 licensed by ARM Ltd and targeted at embedded applications and
1da177e4 80 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
f6c8965a 81 manufactured, but legacy ARM-based PC hardware remains popular in
1da177e4
LT
82 Europe. There is an ARM Linux project with a web page at
83 <http://www.arm.linux.org.uk/>.
84
74facffe 85config ARM_HAS_SG_CHAIN
308c09f1 86 select ARCH_HAS_SG_CHAIN
74facffe
RK
87 bool
88
4ce63fcd
MS
89config NEED_SG_DMA_LENGTH
90 bool
91
92config ARM_DMA_USE_IOMMU
4ce63fcd 93 bool
b1b3f49c
RK
94 select ARM_HAS_SG_CHAIN
95 select NEED_SG_DMA_LENGTH
4ce63fcd 96
60460abf
SWK
97if ARM_DMA_USE_IOMMU
98
99config ARM_DMA_IOMMU_ALIGNMENT
100 int "Maximum PAGE_SIZE order of alignment for DMA IOMMU buffers"
101 range 4 9
102 default 8
103 help
104 DMA mapping framework by default aligns all buffers to the smallest
105 PAGE_SIZE order which is greater than or equal to the requested buffer
106 size. This works well for buffers up to a few hundreds kilobytes, but
107 for larger buffers it just a waste of address space. Drivers which has
108 relatively small addressing window (like 64Mib) might run out of
109 virtual space with just a few allocations.
110
111 With this parameter you can specify the maximum PAGE_SIZE order for
112 DMA IOMMU buffers. Larger buffers will be aligned only to this
113 specified order. The order is expressed as a power of two multiplied
114 by the PAGE_SIZE.
115
116endif
117
0b05da72
HUK
118config MIGHT_HAVE_PCI
119 bool
120
75e7153a
RB
121config SYS_SUPPORTS_APM_EMULATION
122 bool
123
bc581770
LW
124config HAVE_TCM
125 bool
126 select GENERIC_ALLOCATOR
127
e119bfff
RK
128config HAVE_PROC_CPU
129 bool
130
ce816fa8 131config NO_IOPORT_MAP
5ea81769 132 bool
5ea81769 133
1da177e4
LT
134config EISA
135 bool
136 ---help---
137 The Extended Industry Standard Architecture (EISA) bus was
138 developed as an open alternative to the IBM MicroChannel bus.
139
140 The EISA bus provided some of the features of the IBM MicroChannel
141 bus while maintaining backward compatibility with cards made for
142 the older ISA bus. The EISA bus saw limited use between 1988 and
143 1995 when it was made obsolete by the PCI bus.
144
145 Say Y here if you are building a kernel for an EISA-based machine.
146
147 Otherwise, say N.
148
149config SBUS
150 bool
151
f16fb1ec
RK
152config STACKTRACE_SUPPORT
153 bool
154 default y
155
f76e9154
NP
156config HAVE_LATENCYTOP_SUPPORT
157 bool
158 depends on !SMP
159 default y
160
f16fb1ec
RK
161config LOCKDEP_SUPPORT
162 bool
163 default y
164
7ad1bcb2
RK
165config TRACE_IRQFLAGS_SUPPORT
166 bool
167 default y
168
1da177e4
LT
169config RWSEM_XCHGADD_ALGORITHM
170 bool
8a87411b 171 default y
1da177e4 172
f0d1b0b3
DH
173config ARCH_HAS_ILOG2_U32
174 bool
f0d1b0b3
DH
175
176config ARCH_HAS_ILOG2_U64
177 bool
f0d1b0b3 178
4a1b5733
EV
179config ARCH_HAS_BANDGAP
180 bool
181
b89c3b16
AM
182config GENERIC_HWEIGHT
183 bool
184 default y
185
1da177e4
LT
186config GENERIC_CALIBRATE_DELAY
187 bool
188 default y
189
a08b6b79
Z
190config ARCH_MAY_HAVE_PC_FDC
191 bool
192
5ac6da66
CL
193config ZONE_DMA
194 bool
5ac6da66 195
ccd7ab7f
FT
196config NEED_DMA_MAP_STATE
197 def_bool y
198
c7edc9e3
DL
199config ARCH_SUPPORTS_UPROBES
200 def_bool y
201
58af4a24
RH
202config ARCH_HAS_DMA_SET_COHERENT_MASK
203 bool
204
1da177e4
LT
205config GENERIC_ISA_DMA
206 bool
207
1da177e4
LT
208config FIQ
209 bool
210
13a5045d
RH
211config NEED_RET_TO_USER
212 bool
213
034d2f5a
AV
214config ARCH_MTD_XIP
215 bool
216
c760fc19
HC
217config VECTORS_BASE
218 hex
6afd6fae 219 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
c760fc19
HC
220 default DRAM_BASE if REMAP_VECTORS_TO_RAM
221 default 0x00000000
222 help
19accfd3
RK
223 The base address of exception vectors. This must be two pages
224 in size.
c760fc19 225
dc21af99 226config ARM_PATCH_PHYS_VIRT
c1becedc
RK
227 bool "Patch physical to virtual translations at runtime" if EMBEDDED
228 default y
b511d75d 229 depends on !XIP_KERNEL && MMU
dc21af99
RK
230 depends on !ARCH_REALVIEW || !SPARSEMEM
231 help
111e9a5c
RK
232 Patch phys-to-virt and virt-to-phys translation functions at
233 boot and module load time according to the position of the
234 kernel in system memory.
dc21af99 235
111e9a5c 236 This can only be used with non-XIP MMU kernels where the base
daece596 237 of physical memory is at a 16MB boundary.
dc21af99 238
c1becedc
RK
239 Only disable this option if you know that you do not require
240 this feature (eg, building a kernel for a single machine) and
241 you need to shrink the kernel to the minimal size.
dc21af99 242
c334bc15
RH
243config NEED_MACH_IO_H
244 bool
245 help
246 Select this when mach/io.h is required to provide special
247 definitions for this platform. The need for mach/io.h should
248 be avoided when possible.
249
0cdc8b92 250config NEED_MACH_MEMORY_H
1b9f95f8
NP
251 bool
252 help
0cdc8b92
NP
253 Select this when mach/memory.h is required to provide special
254 definitions for this platform. The need for mach/memory.h should
255 be avoided when possible.
dc21af99 256
1b9f95f8 257config PHYS_OFFSET
974c0724 258 hex "Physical address of main memory" if MMU
c6f54a9b 259 depends on !ARM_PATCH_PHYS_VIRT
974c0724 260 default DRAM_BASE if !MMU
c6f54a9b
UKK
261 default 0x00000000 if ARCH_EBSA110 || \
262 EP93XX_SDCE3_SYNC_PHYS_OFFSET || \
263 ARCH_FOOTBRIDGE || \
264 ARCH_INTEGRATOR || \
265 ARCH_IOP13XX || \
266 ARCH_KS8695 || \
267 (ARCH_REALVIEW && !REALVIEW_HIGH_PHYS_OFFSET)
268 default 0x10000000 if ARCH_OMAP1 || ARCH_RPC
269 default 0x20000000 if ARCH_S5PV210
270 default 0x70000000 if REALVIEW_HIGH_PHYS_OFFSET
271 default 0xc0000000 if EP93XX_SDCE0_PHYS_OFFSET || ARCH_SA1100
272 default 0xd0000000 if EP93XX_SDCE1_PHYS_OFFSET
273 default 0xe0000000 if EP93XX_SDCE2_PHYS_OFFSET
274 default 0xf0000000 if EP93XX_SDCE3_ASYNC_PHYS_OFFSET
111e9a5c 275 help
1b9f95f8
NP
276 Please provide the physical address corresponding to the
277 location of main memory in your system.
cada3c08 278
87e040b6
SG
279config GENERIC_BUG
280 def_bool y
281 depends on BUG
282
1da177e4
LT
283source "init/Kconfig"
284
dc52ddc0
MH
285source "kernel/Kconfig.freezer"
286
1da177e4
LT
287menu "System Type"
288
3c427975
HC
289config MMU
290 bool "MMU-based Paged Memory Management Support"
291 default y
292 help
293 Select if you want MMU-based virtualised addressing space
294 support by paged memory management. If unsure, say 'Y'.
295
ccf50e23
RK
296#
297# The "ARM system type" choice list is ordered alphabetically by option
298# text. Please add new entries in the option alphabetic order.
299#
1da177e4
LT
300choice
301 prompt "ARM system type"
1420b22b
AB
302 default ARCH_VERSATILE if !MMU
303 default ARCH_MULTIPLATFORM if MMU
1da177e4 304
387798b3
RH
305config ARCH_MULTIPLATFORM
306 bool "Allow multiple platforms to be selected"
b1b3f49c 307 depends on MMU
ddb902cc 308 select ARCH_WANT_OPTIONAL_GPIOLIB
42dc836d 309 select ARM_HAS_SG_CHAIN
387798b3
RH
310 select ARM_PATCH_PHYS_VIRT
311 select AUTO_ZRELADDR
6d0add40 312 select CLKSRC_OF
66314223 313 select COMMON_CLK
ddb902cc 314 select GENERIC_CLOCKEVENTS
08d38beb 315 select MIGHT_HAVE_PCI
387798b3 316 select MULTI_IRQ_HANDLER
66314223
DN
317 select SPARSE_IRQ
318 select USE_OF
66314223 319
4af6fee1
DS
320config ARCH_INTEGRATOR
321 bool "ARM Ltd. Integrator family"
b1b3f49c 322 select ARM_AMBA
91942d17 323 select ARM_PATCH_PHYS_VIRT if MMU
fe989145 324 select AUTO_ZRELADDR
a613163d 325 select COMMON_CLK
f9a6aa43 326 select COMMON_CLK_VERSATILE
b1b3f49c 327 select GENERIC_CLOCKEVENTS
9904f793 328 select HAVE_TCM
c5a0adb5 329 select ICST
b1b3f49c 330 select MULTI_IRQ_HANDLER
f4b8b319 331 select PLAT_VERSATILE
695436e3 332 select SPARSE_IRQ
d7057e1d 333 select USE_OF
2389d501 334 select VERSATILE_FPGA_IRQ
4af6fee1
DS
335 help
336 Support for ARM's Integrator platform.
337
338config ARCH_REALVIEW
339 bool "ARM Ltd. RealView family"
b1b3f49c 340 select ARCH_WANT_OPTIONAL_GPIOLIB
4af6fee1 341 select ARM_AMBA
b1b3f49c 342 select ARM_TIMER_SP804
f9a6aa43
LW
343 select COMMON_CLK
344 select COMMON_CLK_VERSATILE
ae30ceac 345 select GENERIC_CLOCKEVENTS
b56ba8aa 346 select GPIO_PL061 if GPIOLIB
b1b3f49c 347 select ICST
0cdc8b92 348 select NEED_MACH_MEMORY_H
b1b3f49c 349 select PLAT_VERSATILE
4af6fee1
DS
350 help
351 This enables support for ARM Ltd RealView boards.
352
353config ARCH_VERSATILE
354 bool "ARM Ltd. Versatile family"
b1b3f49c 355 select ARCH_WANT_OPTIONAL_GPIOLIB
4af6fee1 356 select ARM_AMBA
b1b3f49c 357 select ARM_TIMER_SP804
4af6fee1 358 select ARM_VIC
6d803ba7 359 select CLKDEV_LOOKUP
b1b3f49c 360 select GENERIC_CLOCKEVENTS
aa3831cf 361 select HAVE_MACH_CLKDEV
c5a0adb5 362 select ICST
f4b8b319 363 select PLAT_VERSATILE
b1b3f49c 364 select PLAT_VERSATILE_CLOCK
2389d501 365 select VERSATILE_FPGA_IRQ
4af6fee1
DS
366 help
367 This enables support for ARM Ltd Versatile board.
368
8fc5ffa0
AV
369config ARCH_AT91
370 bool "Atmel AT91"
f373e8c0 371 select ARCH_REQUIRE_GPIOLIB
bd602995 372 select CLKDEV_LOOKUP
e261501d 373 select IRQ_DOMAIN
1ac02d79 374 select NEED_MACH_IO_H if PCCARD
6732ae5c
JCPV
375 select PINCTRL
376 select PINCTRL_AT91 if USE_OF
4af6fee1 377 help
929e994f
NF
378 This enables support for systems based on Atmel
379 AT91RM9200 and AT91SAM9* processors.
4af6fee1 380
93e22567
RK
381config ARCH_CLPS711X
382 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
a3b8d4a5 383 select ARCH_REQUIRE_GPIOLIB
ea7d1bc9 384 select AUTO_ZRELADDR
c99f72ad 385 select CLKSRC_MMIO
93e22567
RK
386 select COMMON_CLK
387 select CPU_ARM720T
4a8355c4 388 select GENERIC_CLOCKEVENTS
6597619f 389 select MFD_SYSCON
e4e3a37d 390 select SOC_BUS
93e22567
RK
391 help
392 Support for Cirrus Logic 711x/721x/731x based boards.
393
788c9700
RK
394config ARCH_GEMINI
395 bool "Cortina Systems Gemini"
788c9700 396 select ARCH_REQUIRE_GPIOLIB
f3372c01 397 select CLKSRC_MMIO
b1b3f49c 398 select CPU_FA526
f3372c01 399 select GENERIC_CLOCKEVENTS
788c9700
RK
400 help
401 Support for the Cortina Systems Gemini family SoCs
402
1da177e4
LT
403config ARCH_EBSA110
404 bool "EBSA-110"
b1b3f49c 405 select ARCH_USES_GETTIMEOFFSET
c750815e 406 select CPU_SA110
f7e68bbf 407 select ISA
c334bc15 408 select NEED_MACH_IO_H
0cdc8b92 409 select NEED_MACH_MEMORY_H
ce816fa8 410 select NO_IOPORT_MAP
1da177e4
LT
411 help
412 This is an evaluation board for the StrongARM processor available
f6c8965a 413 from Digital. It has limited hardware on-board, including an
1da177e4
LT
414 Ethernet interface, two PCMCIA sockets, two serial ports and a
415 parallel port.
416
6d85e2b0
UKK
417config ARCH_EFM32
418 bool "Energy Micro efm32"
419 depends on !MMU
420 select ARCH_REQUIRE_GPIOLIB
421 select ARM_NVIC
51aaf81f 422 select AUTO_ZRELADDR
6d85e2b0
UKK
423 select CLKSRC_OF
424 select COMMON_CLK
425 select CPU_V7M
426 select GENERIC_CLOCKEVENTS
427 select NO_DMA
ce816fa8 428 select NO_IOPORT_MAP
6d85e2b0
UKK
429 select SPARSE_IRQ
430 select USE_OF
431 help
432 Support for Energy Micro's (now Silicon Labs) efm32 Giant Gecko
433 processors.
434
e7736d47
LB
435config ARCH_EP93XX
436 bool "EP93xx-based"
b1b3f49c
RK
437 select ARCH_HAS_HOLES_MEMORYMODEL
438 select ARCH_REQUIRE_GPIOLIB
439 select ARCH_USES_GETTIMEOFFSET
e7736d47
LB
440 select ARM_AMBA
441 select ARM_VIC
6d803ba7 442 select CLKDEV_LOOKUP
b1b3f49c 443 select CPU_ARM920T
e7736d47
LB
444 help
445 This enables support for the Cirrus EP93xx series of CPUs.
446
1da177e4
LT
447config ARCH_FOOTBRIDGE
448 bool "FootBridge"
c750815e 449 select CPU_SA110
1da177e4 450 select FOOTBRIDGE
4e8d7637 451 select GENERIC_CLOCKEVENTS
d0ee9f40 452 select HAVE_IDE
8ef6e620 453 select NEED_MACH_IO_H if !MMU
0cdc8b92 454 select NEED_MACH_MEMORY_H
f999b8bd
MM
455 help
456 Support for systems based on the DC21285 companion chip
457 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
1da177e4 458
4af6fee1
DS
459config ARCH_NETX
460 bool "Hilscher NetX based"
b1b3f49c 461 select ARM_VIC
234b6ced 462 select CLKSRC_MMIO
c750815e 463 select CPU_ARM926T
2fcfe6b8 464 select GENERIC_CLOCKEVENTS
f999b8bd 465 help
4af6fee1
DS
466 This enables support for systems based on the Hilscher NetX Soc
467
3b938be6
RK
468config ARCH_IOP13XX
469 bool "IOP13xx-based"
470 depends on MMU
b1b3f49c 471 select CPU_XSC3
0cdc8b92 472 select NEED_MACH_MEMORY_H
13a5045d 473 select NEED_RET_TO_USER
b1b3f49c
RK
474 select PCI
475 select PLAT_IOP
476 select VMSPLIT_1G
37ebbcff 477 select SPARSE_IRQ
3b938be6
RK
478 help
479 Support for Intel's IOP13XX (XScale) family of processors.
480
3f7e5815
LB
481config ARCH_IOP32X
482 bool "IOP32x-based"
a4f7e763 483 depends on MMU
b1b3f49c 484 select ARCH_REQUIRE_GPIOLIB
c750815e 485 select CPU_XSCALE
e9004f50 486 select GPIO_IOP
13a5045d 487 select NEED_RET_TO_USER
f7e68bbf 488 select PCI
b1b3f49c 489 select PLAT_IOP
f999b8bd 490 help
3f7e5815
LB
491 Support for Intel's 80219 and IOP32X (XScale) family of
492 processors.
493
494config ARCH_IOP33X
495 bool "IOP33x-based"
496 depends on MMU
b1b3f49c 497 select ARCH_REQUIRE_GPIOLIB
c750815e 498 select CPU_XSCALE
e9004f50 499 select GPIO_IOP
13a5045d 500 select NEED_RET_TO_USER
3f7e5815 501 select PCI
b1b3f49c 502 select PLAT_IOP
3f7e5815
LB
503 help
504 Support for Intel's IOP33X (XScale) family of processors.
1da177e4 505
3b938be6
RK
506config ARCH_IXP4XX
507 bool "IXP4xx-based"
a4f7e763 508 depends on MMU
58af4a24 509 select ARCH_HAS_DMA_SET_COHERENT_MASK
b1b3f49c 510 select ARCH_REQUIRE_GPIOLIB
51aaf81f 511 select ARCH_SUPPORTS_BIG_ENDIAN
234b6ced 512 select CLKSRC_MMIO
c750815e 513 select CPU_XSCALE
b1b3f49c 514 select DMABOUNCE if PCI
3b938be6 515 select GENERIC_CLOCKEVENTS
0b05da72 516 select MIGHT_HAVE_PCI
c334bc15 517 select NEED_MACH_IO_H
9296d94d 518 select USB_EHCI_BIG_ENDIAN_DESC
171b3f0d 519 select USB_EHCI_BIG_ENDIAN_MMIO
c4713074 520 help
3b938be6 521 Support for Intel's IXP4XX (XScale) family of processors.
c4713074 522
edabd38e
SB
523config ARCH_DOVE
524 bool "Marvell Dove"
edabd38e 525 select ARCH_REQUIRE_GPIOLIB
756b2531 526 select CPU_PJ4
edabd38e 527 select GENERIC_CLOCKEVENTS
0f81bd43 528 select MIGHT_HAVE_PCI
171b3f0d 529 select MVEBU_MBUS
9139acd1
SH
530 select PINCTRL
531 select PINCTRL_DOVE
abcda1dc 532 select PLAT_ORION_LEGACY
edabd38e
SB
533 help
534 Support for the Marvell Dove SoC 88AP510
535
794d15b2
SS
536config ARCH_MV78XX0
537 bool "Marvell MV78xx0"
a8865655 538 select ARCH_REQUIRE_GPIOLIB
b1b3f49c 539 select CPU_FEROCEON
794d15b2 540 select GENERIC_CLOCKEVENTS
171b3f0d 541 select MVEBU_MBUS
b1b3f49c 542 select PCI
abcda1dc 543 select PLAT_ORION_LEGACY
794d15b2
SS
544 help
545 Support for the following Marvell MV78xx0 series SoCs:
546 MV781x0, MV782x0.
547
9dd0b194 548config ARCH_ORION5X
585cf175
TP
549 bool "Marvell Orion"
550 depends on MMU
a8865655 551 select ARCH_REQUIRE_GPIOLIB
b1b3f49c 552 select CPU_FEROCEON
51cbff1d 553 select GENERIC_CLOCKEVENTS
171b3f0d 554 select MVEBU_MBUS
b1b3f49c 555 select PCI
abcda1dc 556 select PLAT_ORION_LEGACY
585cf175 557 help
9dd0b194 558 Support for the following Marvell Orion 5x series SoCs:
d2b2a6bb 559 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
d323ade1 560 Orion-2 (5281), Orion-1-90 (6183).
585cf175 561
788c9700 562config ARCH_MMP
2f7e8fae 563 bool "Marvell PXA168/910/MMP2"
788c9700 564 depends on MMU
788c9700 565 select ARCH_REQUIRE_GPIOLIB
6d803ba7 566 select CLKDEV_LOOKUP
b1b3f49c 567 select GENERIC_ALLOCATOR
788c9700 568 select GENERIC_CLOCKEVENTS
157d2644 569 select GPIO_PXA
c24b3114 570 select IRQ_DOMAIN
0f374561 571 select MULTI_IRQ_HANDLER
7c8f86a4 572 select PINCTRL
788c9700 573 select PLAT_PXA
0bd86961 574 select SPARSE_IRQ
788c9700 575 help
2f7e8fae 576 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
788c9700
RK
577
578config ARCH_KS8695
579 bool "Micrel/Kendin KS8695"
98830bc9 580 select ARCH_REQUIRE_GPIOLIB
c7e783d6 581 select CLKSRC_MMIO
b1b3f49c 582 select CPU_ARM922T
c7e783d6 583 select GENERIC_CLOCKEVENTS
b1b3f49c 584 select NEED_MACH_MEMORY_H
788c9700
RK
585 help
586 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
587 System-on-Chip devices.
588
788c9700
RK
589config ARCH_W90X900
590 bool "Nuvoton W90X900 CPU"
c52d3d68 591 select ARCH_REQUIRE_GPIOLIB
6d803ba7 592 select CLKDEV_LOOKUP
6fa5d5f7 593 select CLKSRC_MMIO
b1b3f49c 594 select CPU_ARM926T
58b5369e 595 select GENERIC_CLOCKEVENTS
788c9700 596 help
a8bc4ead 597 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
598 At present, the w90x900 has been renamed nuc900, regarding
599 the ARM series product line, you can login the following
600 link address to know more.
601
602 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
603 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
788c9700 604
93e22567
RK
605config ARCH_LPC32XX
606 bool "NXP LPC32XX"
607 select ARCH_REQUIRE_GPIOLIB
608 select ARM_AMBA
609 select CLKDEV_LOOKUP
610 select CLKSRC_MMIO
611 select CPU_ARM926T
612 select GENERIC_CLOCKEVENTS
613 select HAVE_IDE
93e22567
RK
614 select USE_OF
615 help
616 Support for the NXP LPC32XX family of processors
617
1da177e4 618config ARCH_PXA
2c8086a5 619 bool "PXA2xx/PXA3xx-based"
a4f7e763 620 depends on MMU
b1b3f49c
RK
621 select ARCH_MTD_XIP
622 select ARCH_REQUIRE_GPIOLIB
623 select ARM_CPU_SUSPEND if PM
624 select AUTO_ZRELADDR
6d803ba7 625 select CLKDEV_LOOKUP
234b6ced 626 select CLKSRC_MMIO
6f6caeaa 627 select CLKSRC_OF
981d0f39 628 select GENERIC_CLOCKEVENTS
157d2644 629 select GPIO_PXA
d0ee9f40 630 select HAVE_IDE
b1b3f49c 631 select MULTI_IRQ_HANDLER
b1b3f49c
RK
632 select PLAT_PXA
633 select SPARSE_IRQ
f999b8bd 634 help
2c8086a5 635 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
1da177e4 636
8fc1b0f8
KG
637config ARCH_MSM
638 bool "Qualcomm MSM (non-multiplatform)"
923a081c 639 select ARCH_REQUIRE_GPIOLIB
8cc7f533 640 select COMMON_CLK
b1b3f49c 641 select GENERIC_CLOCKEVENTS
49cbe786 642 help
4b53eb4f
DW
643 Support for Qualcomm MSM/QSD based systems. This runs on the
644 apps processor of the MSM/QSD and depends on a shared memory
645 interface to the modem processor which runs the baseband
646 stack and controls some vital subsystems
647 (clock and power control, etc).
49cbe786 648
bf98c1ea 649config ARCH_SHMOBILE_LEGACY
0d9fd616 650 bool "Renesas ARM SoCs (non-multiplatform)"
bf98c1ea 651 select ARCH_SHMOBILE
91942d17 652 select ARM_PATCH_PHYS_VIRT if MMU
5e93c6b4 653 select CLKDEV_LOOKUP
b1b3f49c 654 select GENERIC_CLOCKEVENTS
4c3ffffd 655 select HAVE_ARM_SCU if SMP
a894fcc2 656 select HAVE_ARM_TWD if SMP
aa3831cf 657 select HAVE_MACH_CLKDEV
3b55658a 658 select HAVE_SMP
ce5ea9f3 659 select MIGHT_HAVE_CACHE_L2X0
60f1435c 660 select MULTI_IRQ_HANDLER
ce816fa8 661 select NO_IOPORT_MAP
2cd3c927 662 select PINCTRL
b1b3f49c
RK
663 select PM_GENERIC_DOMAINS if PM
664 select SPARSE_IRQ
c793c1b0 665 help
0d9fd616
LP
666 Support for Renesas ARM SoC platforms using a non-multiplatform
667 kernel. This includes the SH-Mobile, R-Mobile, EMMA-Mobile, R-Car
668 and RZ families.
c793c1b0 669
1da177e4
LT
670config ARCH_RPC
671 bool "RiscPC"
672 select ARCH_ACORN
a08b6b79 673 select ARCH_MAY_HAVE_PC_FDC
07f841b7 674 select ARCH_SPARSEMEM_ENABLE
5cfc8ee0 675 select ARCH_USES_GETTIMEOFFSET
fa04e209 676 select CPU_SA110
b1b3f49c 677 select FIQ
d0ee9f40 678 select HAVE_IDE
b1b3f49c
RK
679 select HAVE_PATA_PLATFORM
680 select ISA_DMA_API
c334bc15 681 select NEED_MACH_IO_H
0cdc8b92 682 select NEED_MACH_MEMORY_H
ce816fa8 683 select NO_IOPORT_MAP
b4811bac 684 select VIRT_TO_BUS
1da177e4
LT
685 help
686 On the Acorn Risc-PC, Linux can support the internal IDE disk and
687 CD-ROM interface, serial and parallel port, and the floppy drive.
688
689config ARCH_SA1100
690 bool "SA1100-based"
b1b3f49c
RK
691 select ARCH_MTD_XIP
692 select ARCH_REQUIRE_GPIOLIB
693 select ARCH_SPARSEMEM_ENABLE
694 select CLKDEV_LOOKUP
695 select CLKSRC_MMIO
1937f5b9 696 select CPU_FREQ
b1b3f49c 697 select CPU_SA1100
3e238be2 698 select GENERIC_CLOCKEVENTS
d0ee9f40 699 select HAVE_IDE
b1b3f49c 700 select ISA
0cdc8b92 701 select NEED_MACH_MEMORY_H
375dec92 702 select SPARSE_IRQ
f999b8bd
MM
703 help
704 Support for StrongARM 11x0 based boards.
1da177e4 705
b130d5c2
KK
706config ARCH_S3C24XX
707 bool "Samsung S3C24XX SoCs"
53650430 708 select ARCH_REQUIRE_GPIOLIB
335cce74 709 select ATAGS
b1b3f49c 710 select CLKDEV_LOOKUP
4280506a 711 select CLKSRC_SAMSUNG_PWM
7f78b6eb 712 select GENERIC_CLOCKEVENTS
880cf071 713 select GPIO_SAMSUNG
20676c15 714 select HAVE_S3C2410_I2C if I2C
b130d5c2 715 select HAVE_S3C2410_WATCHDOG if WATCHDOG
b1b3f49c 716 select HAVE_S3C_RTC if RTC_CLASS
17453dd2 717 select MULTI_IRQ_HANDLER
c334bc15 718 select NEED_MACH_IO_H
cd8dc7ae 719 select SAMSUNG_ATAGS
1da177e4 720 help
b130d5c2
KK
721 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
722 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
723 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
724 Samsung SMDK2410 development board (and derivatives).
63b1f51b 725
a08ab637
BD
726config ARCH_S3C64XX
727 bool "Samsung S3C64XX"
b1b3f49c 728 select ARCH_REQUIRE_GPIOLIB
1db0287a 729 select ARM_AMBA
89f0ce72 730 select ARM_VIC
335cce74 731 select ATAGS
b1b3f49c 732 select CLKDEV_LOOKUP
4280506a 733 select CLKSRC_SAMSUNG_PWM
ccecba3c 734 select COMMON_CLK_SAMSUNG
70bacadb 735 select CPU_V6K
04a49b71 736 select GENERIC_CLOCKEVENTS
880cf071 737 select GPIO_SAMSUNG
b1b3f49c
RK
738 select HAVE_S3C2410_I2C if I2C
739 select HAVE_S3C2410_WATCHDOG if WATCHDOG
6700397a 740 select HAVE_TCM
ce816fa8 741 select NO_IOPORT_MAP
b1b3f49c 742 select PLAT_SAMSUNG
4ab75a3f 743 select PM_GENERIC_DOMAINS if PM
b1b3f49c
RK
744 select S3C_DEV_NAND
745 select S3C_GPIO_TRACK
cd8dc7ae 746 select SAMSUNG_ATAGS
6e2d9e93 747 select SAMSUNG_WAKEMASK
88f59738 748 select SAMSUNG_WDT_RESET
a08ab637
BD
749 help
750 Samsung S3C64XX series based systems
751
7c6337e2
KH
752config ARCH_DAVINCI
753 bool "TI DaVinci"
b1b3f49c 754 select ARCH_HAS_HOLES_MEMORYMODEL
dce1115b 755 select ARCH_REQUIRE_GPIOLIB
6d803ba7 756 select CLKDEV_LOOKUP
20e9969b 757 select GENERIC_ALLOCATOR
b1b3f49c 758 select GENERIC_CLOCKEVENTS
dc7ad3b3 759 select GENERIC_IRQ_CHIP
b1b3f49c 760 select HAVE_IDE
3ad7a42d 761 select TI_PRIV_EDMA
689e331f 762 select USE_OF
b1b3f49c 763 select ZONE_DMA
7c6337e2
KH
764 help
765 Support for TI's DaVinci platform.
766
a0694861
TL
767config ARCH_OMAP1
768 bool "TI OMAP1"
00a36698 769 depends on MMU
9af915da 770 select ARCH_HAS_HOLES_MEMORYMODEL
a0694861 771 select ARCH_OMAP
21f47fbc 772 select ARCH_REQUIRE_GPIOLIB
b1b3f49c 773 select CLKDEV_LOOKUP
d6e15d78 774 select CLKSRC_MMIO
b1b3f49c 775 select GENERIC_CLOCKEVENTS
a0694861 776 select GENERIC_IRQ_CHIP
a0694861
TL
777 select HAVE_IDE
778 select IRQ_DOMAIN
779 select NEED_MACH_IO_H if PCCARD
780 select NEED_MACH_MEMORY_H
21f47fbc 781 help
a0694861 782 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
02c981c0 783
1da177e4
LT
784endchoice
785
387798b3
RH
786menu "Multiple platform selection"
787 depends on ARCH_MULTIPLATFORM
788
789comment "CPU Core family selection"
790
f8afae40
AB
791config ARCH_MULTI_V4
792 bool "ARMv4 based platforms (FA526)"
793 depends on !ARCH_MULTI_V6_V7
794 select ARCH_MULTI_V4_V5
795 select CPU_FA526
796
387798b3
RH
797config ARCH_MULTI_V4T
798 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
387798b3 799 depends on !ARCH_MULTI_V6_V7
b1b3f49c 800 select ARCH_MULTI_V4_V5
24e860fb
AB
801 select CPU_ARM920T if !(CPU_ARM7TDMI || CPU_ARM720T || \
802 CPU_ARM740T || CPU_ARM9TDMI || CPU_ARM922T || \
803 CPU_ARM925T || CPU_ARM940T)
387798b3
RH
804
805config ARCH_MULTI_V5
806 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
387798b3 807 depends on !ARCH_MULTI_V6_V7
b1b3f49c 808 select ARCH_MULTI_V4_V5
12567bbd 809 select CPU_ARM926T if !(CPU_ARM946E || CPU_ARM1020 || \
24e860fb
AB
810 CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || \
811 CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_FEROCEON)
387798b3
RH
812
813config ARCH_MULTI_V4_V5
814 bool
815
816config ARCH_MULTI_V6
8dda05cc 817 bool "ARMv6 based platforms (ARM11)"
387798b3 818 select ARCH_MULTI_V6_V7
42f4754a 819 select CPU_V6K
387798b3
RH
820
821config ARCH_MULTI_V7
8dda05cc 822 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
387798b3
RH
823 default y
824 select ARCH_MULTI_V6_V7
b1b3f49c 825 select CPU_V7
90bc8ac7 826 select HAVE_SMP
387798b3
RH
827
828config ARCH_MULTI_V6_V7
829 bool
9352b05b 830 select MIGHT_HAVE_CACHE_L2X0
387798b3
RH
831
832config ARCH_MULTI_CPU_AUTO
833 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
834 select ARCH_MULTI_V5
835
836endmenu
837
05e2a3de
RH
838config ARCH_VIRT
839 bool "Dummy Virtual Machine" if ARCH_MULTI_V7
4b8b5f25 840 select ARM_AMBA
05e2a3de 841 select ARM_GIC
05e2a3de 842 select ARM_PSCI
4b8b5f25 843 select HAVE_ARM_ARCH_TIMER
05e2a3de 844
ccf50e23
RK
845#
846# This is sorted alphabetically by mach-* pathname. However, plat-*
847# Kconfigs may be included either alphabetically (according to the
848# plat- suffix) or along side the corresponding mach-* source.
849#
3e93a22b
GC
850source "arch/arm/mach-mvebu/Kconfig"
851
95b8f20f
RK
852source "arch/arm/mach-at91/Kconfig"
853
1d22924e
AB
854source "arch/arm/mach-axxia/Kconfig"
855
8ac49e04
CD
856source "arch/arm/mach-bcm/Kconfig"
857
1c37fa10
SH
858source "arch/arm/mach-berlin/Kconfig"
859
1da177e4
LT
860source "arch/arm/mach-clps711x/Kconfig"
861
d94f944e
AV
862source "arch/arm/mach-cns3xxx/Kconfig"
863
95b8f20f
RK
864source "arch/arm/mach-davinci/Kconfig"
865
866source "arch/arm/mach-dove/Kconfig"
867
e7736d47
LB
868source "arch/arm/mach-ep93xx/Kconfig"
869
1da177e4
LT
870source "arch/arm/mach-footbridge/Kconfig"
871
59d3a193
PZ
872source "arch/arm/mach-gemini/Kconfig"
873
387798b3
RH
874source "arch/arm/mach-highbank/Kconfig"
875
389ee0c2
HZ
876source "arch/arm/mach-hisi/Kconfig"
877
1da177e4
LT
878source "arch/arm/mach-integrator/Kconfig"
879
3f7e5815
LB
880source "arch/arm/mach-iop32x/Kconfig"
881
882source "arch/arm/mach-iop33x/Kconfig"
1da177e4 883
285f5fa7
DW
884source "arch/arm/mach-iop13xx/Kconfig"
885
1da177e4
LT
886source "arch/arm/mach-ixp4xx/Kconfig"
887
828989ad
SS
888source "arch/arm/mach-keystone/Kconfig"
889
95b8f20f
RK
890source "arch/arm/mach-ks8695/Kconfig"
891
95b8f20f
RK
892source "arch/arm/mach-msm/Kconfig"
893
17723fd3
JJ
894source "arch/arm/mach-moxart/Kconfig"
895
794d15b2
SS
896source "arch/arm/mach-mv78xx0/Kconfig"
897
3995eb82 898source "arch/arm/mach-imx/Kconfig"
1da177e4 899
f682a218
MB
900source "arch/arm/mach-mediatek/Kconfig"
901
1d3f33d5
SG
902source "arch/arm/mach-mxs/Kconfig"
903
95b8f20f 904source "arch/arm/mach-netx/Kconfig"
49cbe786 905
95b8f20f 906source "arch/arm/mach-nomadik/Kconfig"
95b8f20f 907
9851ca57
DT
908source "arch/arm/mach-nspire/Kconfig"
909
d48af15e
TL
910source "arch/arm/plat-omap/Kconfig"
911
912source "arch/arm/mach-omap1/Kconfig"
1da177e4 913
1dbae815
TL
914source "arch/arm/mach-omap2/Kconfig"
915
9dd0b194 916source "arch/arm/mach-orion5x/Kconfig"
585cf175 917
387798b3
RH
918source "arch/arm/mach-picoxcell/Kconfig"
919
95b8f20f
RK
920source "arch/arm/mach-pxa/Kconfig"
921source "arch/arm/plat-pxa/Kconfig"
585cf175 922
95b8f20f
RK
923source "arch/arm/mach-mmp/Kconfig"
924
8fc1b0f8
KG
925source "arch/arm/mach-qcom/Kconfig"
926
95b8f20f
RK
927source "arch/arm/mach-realview/Kconfig"
928
d63dc051
HS
929source "arch/arm/mach-rockchip/Kconfig"
930
95b8f20f 931source "arch/arm/mach-sa1100/Kconfig"
edabd38e 932
387798b3
RH
933source "arch/arm/mach-socfpga/Kconfig"
934
a7ed099f 935source "arch/arm/mach-spear/Kconfig"
a21765a7 936
65ebcc11
SK
937source "arch/arm/mach-sti/Kconfig"
938
85fd6d63 939source "arch/arm/mach-s3c24xx/Kconfig"
1da177e4 940
431107ea 941source "arch/arm/mach-s3c64xx/Kconfig"
a08ab637 942
170f4e42
KK
943source "arch/arm/mach-s5pv210/Kconfig"
944
83014579 945source "arch/arm/mach-exynos/Kconfig"
e509b289 946source "arch/arm/plat-samsung/Kconfig"
cc0e72b8 947
882d01f9 948source "arch/arm/mach-shmobile/Kconfig"
52c543f9 949
3b52634f
MR
950source "arch/arm/mach-sunxi/Kconfig"
951
156a0997
BS
952source "arch/arm/mach-prima2/Kconfig"
953
c5f80065
EG
954source "arch/arm/mach-tegra/Kconfig"
955
95b8f20f 956source "arch/arm/mach-u300/Kconfig"
1da177e4 957
95b8f20f 958source "arch/arm/mach-ux500/Kconfig"
1da177e4
LT
959
960source "arch/arm/mach-versatile/Kconfig"
961
ceade897 962source "arch/arm/mach-vexpress/Kconfig"
420c34e4 963source "arch/arm/plat-versatile/Kconfig"
ceade897 964
6f35f9a9
TP
965source "arch/arm/mach-vt8500/Kconfig"
966
7ec80ddf 967source "arch/arm/mach-w90x900/Kconfig"
968
9a45eb69
JC
969source "arch/arm/mach-zynq/Kconfig"
970
1da177e4
LT
971# Definitions to make life easier
972config ARCH_ACORN
973 bool
974
7ae1f7ec
LB
975config PLAT_IOP
976 bool
469d3044 977 select GENERIC_CLOCKEVENTS
7ae1f7ec 978
69b02f6a
LB
979config PLAT_ORION
980 bool
bfe45e0b 981 select CLKSRC_MMIO
b1b3f49c 982 select COMMON_CLK
dc7ad3b3 983 select GENERIC_IRQ_CHIP
278b45b0 984 select IRQ_DOMAIN
69b02f6a 985
abcda1dc
TP
986config PLAT_ORION_LEGACY
987 bool
988 select PLAT_ORION
989
bd5ce433
EM
990config PLAT_PXA
991 bool
992
f4b8b319
RK
993config PLAT_VERSATILE
994 bool
995
e3887714
RK
996config ARM_TIMER_SP804
997 bool
bfe45e0b 998 select CLKSRC_MMIO
7a0eca71 999 select CLKSRC_OF if OF
e3887714 1000
d9a1beaa
AC
1001source "arch/arm/firmware/Kconfig"
1002
1da177e4
LT
1003source arch/arm/mm/Kconfig
1004
afe4b25e 1005config IWMMXT
d93003e8
SH
1006 bool "Enable iWMMXt support"
1007 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4 || CPU_PJ4B
1008 default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4 || CPU_PJ4B
afe4b25e
LB
1009 help
1010 Enable support for iWMMXt context switching at run time if
1011 running on a CPU that supports it.
1012
52108641 1013config MULTI_IRQ_HANDLER
1014 bool
1015 help
1016 Allow each machine to specify it's own IRQ handler at run time.
1017
3b93e7b0
HC
1018if !MMU
1019source "arch/arm/Kconfig-nommu"
1020endif
1021
3e0a07f8
GC
1022config PJ4B_ERRATA_4742
1023 bool "PJ4B Errata 4742: IDLE Wake Up Commands can Cause the CPU Core to Cease Operation"
1024 depends on CPU_PJ4B && MACH_ARMADA_370
1025 default y
1026 help
1027 When coming out of either a Wait for Interrupt (WFI) or a Wait for
1028 Event (WFE) IDLE states, a specific timing sensitivity exists between
1029 the retiring WFI/WFE instructions and the newly issued subsequent
1030 instructions. This sensitivity can result in a CPU hang scenario.
1031 Workaround:
1032 The software must insert either a Data Synchronization Barrier (DSB)
1033 or Data Memory Barrier (DMB) command immediately after the WFI/WFE
1034 instruction
1035
f0c4b8d6
WD
1036config ARM_ERRATA_326103
1037 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1038 depends on CPU_V6
1039 help
1040 Executing a SWP instruction to read-only memory does not set bit 11
1041 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1042 treat the access as a read, preventing a COW from occurring and
1043 causing the faulting task to livelock.
1044
9cba3ccc
CM
1045config ARM_ERRATA_411920
1046 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
e399b1a4 1047 depends on CPU_V6 || CPU_V6K
9cba3ccc
CM
1048 help
1049 Invalidation of the Instruction Cache operation can
1050 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1051 It does not affect the MPCore. This option enables the ARM Ltd.
1052 recommended workaround.
1053
7ce236fc
CM
1054config ARM_ERRATA_430973
1055 bool "ARM errata: Stale prediction on replaced interworking branch"
1056 depends on CPU_V7
1057 help
1058 This option enables the workaround for the 430973 Cortex-A8
1059 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1060 interworking branch is replaced with another code sequence at the
1061 same virtual address, whether due to self-modifying code or virtual
1062 to physical address re-mapping, Cortex-A8 does not recover from the
1063 stale interworking branch prediction. This results in Cortex-A8
1064 executing the new code sequence in the incorrect ARM or Thumb state.
1065 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1066 and also flushes the branch target cache at every context switch.
1067 Note that setting specific bits in the ACTLR register may not be
1068 available in non-secure mode.
1069
855c551f
CM
1070config ARM_ERRATA_458693
1071 bool "ARM errata: Processor deadlock when a false hazard is created"
1072 depends on CPU_V7
62e4d357 1073 depends on !ARCH_MULTIPLATFORM
855c551f
CM
1074 help
1075 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1076 erratum. For very specific sequences of memory operations, it is
1077 possible for a hazard condition intended for a cache line to instead
1078 be incorrectly associated with a different cache line. This false
1079 hazard might then cause a processor deadlock. The workaround enables
1080 the L1 caching of the NEON accesses and disables the PLD instruction
1081 in the ACTLR register. Note that setting specific bits in the ACTLR
1082 register may not be available in non-secure mode.
1083
0516e464
CM
1084config ARM_ERRATA_460075
1085 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1086 depends on CPU_V7
62e4d357 1087 depends on !ARCH_MULTIPLATFORM
0516e464
CM
1088 help
1089 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1090 erratum. Any asynchronous access to the L2 cache may encounter a
1091 situation in which recent store transactions to the L2 cache are lost
1092 and overwritten with stale memory contents from external memory. The
1093 workaround disables the write-allocate mode for the L2 cache via the
1094 ACTLR register. Note that setting specific bits in the ACTLR register
1095 may not be available in non-secure mode.
1096
9f05027c
WD
1097config ARM_ERRATA_742230
1098 bool "ARM errata: DMB operation may be faulty"
1099 depends on CPU_V7 && SMP
62e4d357 1100 depends on !ARCH_MULTIPLATFORM
9f05027c
WD
1101 help
1102 This option enables the workaround for the 742230 Cortex-A9
1103 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1104 between two write operations may not ensure the correct visibility
1105 ordering of the two writes. This workaround sets a specific bit in
1106 the diagnostic register of the Cortex-A9 which causes the DMB
1107 instruction to behave as a DSB, ensuring the correct behaviour of
1108 the two writes.
1109
a672e99b
WD
1110config ARM_ERRATA_742231
1111 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1112 depends on CPU_V7 && SMP
62e4d357 1113 depends on !ARCH_MULTIPLATFORM
a672e99b
WD
1114 help
1115 This option enables the workaround for the 742231 Cortex-A9
1116 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1117 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1118 accessing some data located in the same cache line, may get corrupted
1119 data due to bad handling of the address hazard when the line gets
1120 replaced from one of the CPUs at the same time as another CPU is
1121 accessing it. This workaround sets specific bits in the diagnostic
1122 register of the Cortex-A9 which reduces the linefill issuing
1123 capabilities of the processor.
1124
69155794
JM
1125config ARM_ERRATA_643719
1126 bool "ARM errata: LoUIS bit field in CLIDR register is incorrect"
1127 depends on CPU_V7 && SMP
1128 help
1129 This option enables the workaround for the 643719 Cortex-A9 (prior to
1130 r1p0) erratum. On affected cores the LoUIS bit field of the CLIDR
1131 register returns zero when it should return one. The workaround
1132 corrects this value, ensuring cache maintenance operations which use
1133 it behave as intended and avoiding data corruption.
1134
cdf357f1
WD
1135config ARM_ERRATA_720789
1136 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
e66dc745 1137 depends on CPU_V7
cdf357f1
WD
1138 help
1139 This option enables the workaround for the 720789 Cortex-A9 (prior to
1140 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1141 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1142 As a consequence of this erratum, some TLB entries which should be
1143 invalidated are not, resulting in an incoherency in the system page
1144 tables. The workaround changes the TLB flushing routines to invalidate
1145 entries regardless of the ASID.
475d92fc
WD
1146
1147config ARM_ERRATA_743622
1148 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1149 depends on CPU_V7
62e4d357 1150 depends on !ARCH_MULTIPLATFORM
475d92fc
WD
1151 help
1152 This option enables the workaround for the 743622 Cortex-A9
efbc74ac 1153 (r2p*) erratum. Under very rare conditions, a faulty
475d92fc
WD
1154 optimisation in the Cortex-A9 Store Buffer may lead to data
1155 corruption. This workaround sets a specific bit in the diagnostic
1156 register of the Cortex-A9 which disables the Store Buffer
1157 optimisation, preventing the defect from occurring. This has no
1158 visible impact on the overall performance or power consumption of the
1159 processor.
1160
9a27c27c
WD
1161config ARM_ERRATA_751472
1162 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
ba90c516 1163 depends on CPU_V7
62e4d357 1164 depends on !ARCH_MULTIPLATFORM
9a27c27c
WD
1165 help
1166 This option enables the workaround for the 751472 Cortex-A9 (prior
1167 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1168 completion of a following broadcasted operation if the second
1169 operation is received by a CPU before the ICIALLUIS has completed,
1170 potentially leading to corrupted entries in the cache or TLB.
1171
fcbdc5fe
WD
1172config ARM_ERRATA_754322
1173 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1174 depends on CPU_V7
1175 help
1176 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1177 r3p*) erratum. A speculative memory access may cause a page table walk
1178 which starts prior to an ASID switch but completes afterwards. This
1179 can populate the micro-TLB with a stale entry which may be hit with
1180 the new ASID. This workaround places two dsb instructions in the mm
1181 switching code so that no page table walks can cross the ASID switch.
1182
5dab26af
WD
1183config ARM_ERRATA_754327
1184 bool "ARM errata: no automatic Store Buffer drain"
1185 depends on CPU_V7 && SMP
1186 help
1187 This option enables the workaround for the 754327 Cortex-A9 (prior to
1188 r2p0) erratum. The Store Buffer does not have any automatic draining
1189 mechanism and therefore a livelock may occur if an external agent
1190 continuously polls a memory location waiting to observe an update.
1191 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1192 written polling loops from denying visibility of updates to memory.
1193
145e10e1
CM
1194config ARM_ERRATA_364296
1195 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
fd832478 1196 depends on CPU_V6
145e10e1
CM
1197 help
1198 This options enables the workaround for the 364296 ARM1136
1199 r0p2 erratum (possible cache data corruption with
1200 hit-under-miss enabled). It sets the undocumented bit 31 in
1201 the auxiliary control register and the FI bit in the control
1202 register, thus disabling hit-under-miss without putting the
1203 processor into full low interrupt latency mode. ARM11MPCore
1204 is not affected.
1205
f630c1bd
WD
1206config ARM_ERRATA_764369
1207 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1208 depends on CPU_V7 && SMP
1209 help
1210 This option enables the workaround for erratum 764369
1211 affecting Cortex-A9 MPCore with two or more processors (all
1212 current revisions). Under certain timing circumstances, a data
1213 cache line maintenance operation by MVA targeting an Inner
1214 Shareable memory region may fail to proceed up to either the
1215 Point of Coherency or to the Point of Unification of the
1216 system. This workaround adds a DSB instruction before the
1217 relevant cache maintenance functions and sets a specific bit
1218 in the diagnostic control register of the SCU.
1219
7253b85c
SH
1220config ARM_ERRATA_775420
1221 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1222 depends on CPU_V7
1223 help
1224 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1225 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1226 operation aborts with MMU exception, it might cause the processor
1227 to deadlock. This workaround puts DSB before executing ISB if
1228 an abort may occur on cache maintenance.
1229
93dc6887
CM
1230config ARM_ERRATA_798181
1231 bool "ARM errata: TLBI/DSB failure on Cortex-A15"
1232 depends on CPU_V7 && SMP
1233 help
1234 On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
1235 adequately shooting down all use of the old entries. This
1236 option enables the Linux kernel workaround for this erratum
1237 which sends an IPI to the CPUs that are running the same ASID
1238 as the one being invalidated.
1239
84b6504f
WD
1240config ARM_ERRATA_773022
1241 bool "ARM errata: incorrect instructions may be executed from loop buffer"
1242 depends on CPU_V7
1243 help
1244 This option enables the workaround for the 773022 Cortex-A15
1245 (up to r0p4) erratum. In certain rare sequences of code, the
1246 loop buffer may deliver incorrect instructions. This
1247 workaround disables the loop buffer to avoid the erratum.
1248
1da177e4
LT
1249endmenu
1250
1251source "arch/arm/common/Kconfig"
1252
1da177e4
LT
1253menu "Bus support"
1254
1255config ARM_AMBA
1256 bool
1257
1258config ISA
1259 bool
1da177e4
LT
1260 help
1261 Find out whether you have ISA slots on your motherboard. ISA is the
1262 name of a bus system, i.e. the way the CPU talks to the other stuff
1263 inside your box. Other bus systems are PCI, EISA, MicroChannel
1264 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1265 newer boards don't support it. If you have ISA, say Y, otherwise N.
1266
065909b9 1267# Select ISA DMA controller support
1da177e4
LT
1268config ISA_DMA
1269 bool
065909b9 1270 select ISA_DMA_API
1da177e4 1271
065909b9 1272# Select ISA DMA interface
5cae841b
AV
1273config ISA_DMA_API
1274 bool
5cae841b 1275
1da177e4 1276config PCI
0b05da72 1277 bool "PCI support" if MIGHT_HAVE_PCI
1da177e4
LT
1278 help
1279 Find out whether you have a PCI motherboard. PCI is the name of a
1280 bus system, i.e. the way the CPU talks to the other stuff inside
1281 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1282 VESA. If you have PCI, say Y, otherwise N.
1283
52882173
AV
1284config PCI_DOMAINS
1285 bool
1286 depends on PCI
1287
b080ac8a
MRJ
1288config PCI_NANOENGINE
1289 bool "BSE nanoEngine PCI support"
1290 depends on SA1100_NANOENGINE
1291 help
1292 Enable PCI on the BSE nanoEngine board.
1293
36e23590
MW
1294config PCI_SYSCALL
1295 def_bool PCI
1296
a0113a99
MR
1297config PCI_HOST_ITE8152
1298 bool
1299 depends on PCI && MACH_ARMCORE
1300 default y
1301 select DMABOUNCE
1302
1da177e4 1303source "drivers/pci/Kconfig"
3f06d157 1304source "drivers/pci/pcie/Kconfig"
1da177e4
LT
1305
1306source "drivers/pcmcia/Kconfig"
1307
1308endmenu
1309
1310menu "Kernel Features"
1311
3b55658a
DM
1312config HAVE_SMP
1313 bool
1314 help
1315 This option should be selected by machines which have an SMP-
1316 capable CPU.
1317
1318 The only effect of this option is to make the SMP-related
1319 options available to the user for configuration.
1320
1da177e4 1321config SMP
bb2d8130 1322 bool "Symmetric Multi-Processing"
fbb4ddac 1323 depends on CPU_V6K || CPU_V7
bc28248e 1324 depends on GENERIC_CLOCKEVENTS
3b55658a 1325 depends on HAVE_SMP
801bb21c 1326 depends on MMU || ARM_MPU
1da177e4
LT
1327 help
1328 This enables support for systems with more than one CPU. If you have
4a474157
RG
1329 a system with only one CPU, say N. If you have a system with more
1330 than one CPU, say Y.
1da177e4 1331
4a474157 1332 If you say N here, the kernel will run on uni- and multiprocessor
1da177e4 1333 machines, but will use only one CPU of a multiprocessor machine. If
4a474157
RG
1334 you say Y here, the kernel will run on many, but not all,
1335 uniprocessor machines. On a uniprocessor machine, the kernel
1336 will run faster if you say N here.
1da177e4 1337
395cf969 1338 See also <file:Documentation/x86/i386/IO-APIC.txt>,
1da177e4 1339 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
50a23e6e 1340 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
1da177e4
LT
1341
1342 If you don't know what to do here, say N.
1343
f00ec48f
RK
1344config SMP_ON_UP
1345 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
801bb21c 1346 depends on SMP && !XIP_KERNEL && MMU
f00ec48f
RK
1347 default y
1348 help
1349 SMP kernels contain instructions which fail on non-SMP processors.
1350 Enabling this option allows the kernel to modify itself to make
1351 these instructions safe. Disabling it allows about 1K of space
1352 savings.
1353
1354 If you don't know what to do here, say Y.
1355
c9018aab
VG
1356config ARM_CPU_TOPOLOGY
1357 bool "Support cpu topology definition"
1358 depends on SMP && CPU_V7
1359 default y
1360 help
1361 Support ARM cpu topology definition. The MPIDR register defines
1362 affinity between processors which is then used to describe the cpu
1363 topology of an ARM System.
1364
1365config SCHED_MC
1366 bool "Multi-core scheduler support"
1367 depends on ARM_CPU_TOPOLOGY
1368 help
1369 Multi-core scheduler support improves the CPU scheduler's decision
1370 making when dealing with multi-core CPU chips at a cost of slightly
1371 increased overhead in some places. If unsure say N here.
1372
1373config SCHED_SMT
1374 bool "SMT scheduler support"
1375 depends on ARM_CPU_TOPOLOGY
1376 help
1377 Improves the CPU scheduler's decision making when dealing with
1378 MultiThreading at a cost of slightly increased overhead in some
1379 places. If unsure say N here.
1380
a8cbcd92
RK
1381config HAVE_ARM_SCU
1382 bool
a8cbcd92
RK
1383 help
1384 This option enables support for the ARM system coherency unit
1385
8a4da6e3 1386config HAVE_ARM_ARCH_TIMER
022c03a2
MZ
1387 bool "Architected timer support"
1388 depends on CPU_V7
8a4da6e3 1389 select ARM_ARCH_TIMER
0c403462 1390 select GENERIC_CLOCKEVENTS
022c03a2
MZ
1391 help
1392 This option enables support for the ARM architected timer
1393
f32f4ce2
RK
1394config HAVE_ARM_TWD
1395 bool
1396 depends on SMP
da4a686a 1397 select CLKSRC_OF if OF
f32f4ce2
RK
1398 help
1399 This options enables support for the ARM timer and watchdog unit
1400
e8db288e
NP
1401config MCPM
1402 bool "Multi-Cluster Power Management"
1403 depends on CPU_V7 && SMP
1404 help
1405 This option provides the common power management infrastructure
1406 for (multi-)cluster based systems, such as big.LITTLE based
1407 systems.
1408
ebf4a5c5
HZ
1409config MCPM_QUAD_CLUSTER
1410 bool
1411 depends on MCPM
1412 help
1413 To avoid wasting resources unnecessarily, MCPM only supports up
1414 to 2 clusters by default.
1415 Platforms with 3 or 4 clusters that use MCPM must select this
1416 option to allow the additional clusters to be managed.
1417
1c33be57
NP
1418config BIG_LITTLE
1419 bool "big.LITTLE support (Experimental)"
1420 depends on CPU_V7 && SMP
1421 select MCPM
1422 help
1423 This option enables support selections for the big.LITTLE
1424 system architecture.
1425
1426config BL_SWITCHER
1427 bool "big.LITTLE switcher support"
1428 depends on BIG_LITTLE && MCPM && HOTPLUG_CPU
1c33be57 1429 select ARM_CPU_SUSPEND
51aaf81f 1430 select CPU_PM
1c33be57
NP
1431 help
1432 The big.LITTLE "switcher" provides the core functionality to
1433 transparently handle transition between a cluster of A15's
1434 and a cluster of A7's in a big.LITTLE system.
1435
b22537c6
NP
1436config BL_SWITCHER_DUMMY_IF
1437 tristate "Simple big.LITTLE switcher user interface"
1438 depends on BL_SWITCHER && DEBUG_KERNEL
1439 help
1440 This is a simple and dummy char dev interface to control
1441 the big.LITTLE switcher core code. It is meant for
1442 debugging purposes only.
1443
8d5796d2
LB
1444choice
1445 prompt "Memory split"
006fa259 1446 depends on MMU
8d5796d2
LB
1447 default VMSPLIT_3G
1448 help
1449 Select the desired split between kernel and user memory.
1450
1451 If you are not absolutely sure what you are doing, leave this
1452 option alone!
1453
1454 config VMSPLIT_3G
1455 bool "3G/1G user/kernel split"
1456 config VMSPLIT_2G
1457 bool "2G/2G user/kernel split"
1458 config VMSPLIT_1G
1459 bool "1G/3G user/kernel split"
1460endchoice
1461
1462config PAGE_OFFSET
1463 hex
006fa259 1464 default PHYS_OFFSET if !MMU
8d5796d2
LB
1465 default 0x40000000 if VMSPLIT_1G
1466 default 0x80000000 if VMSPLIT_2G
1467 default 0xC0000000
1468
1da177e4
LT
1469config NR_CPUS
1470 int "Maximum number of CPUs (2-32)"
1471 range 2 32
1472 depends on SMP
1473 default "4"
1474
a054a811 1475config HOTPLUG_CPU
00b7dede 1476 bool "Support for hot-pluggable CPUs"
40b31360 1477 depends on SMP
a054a811
RK
1478 help
1479 Say Y here to experiment with turning CPUs off and on. CPUs
1480 can be controlled through /sys/devices/system/cpu.
1481
2bdd424f
WD
1482config ARM_PSCI
1483 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1484 depends on CPU_V7
1485 help
1486 Say Y here if you want Linux to communicate with system firmware
1487 implementing the PSCI specification for CPU-centric power
1488 management operations described in ARM document number ARM DEN
1489 0022A ("Power State Coordination Interface System Software on
1490 ARM processors").
1491
2a6ad871
MR
1492# The GPIO number here must be sorted by descending number. In case of
1493# a multiplatform kernel, we just want the highest value required by the
1494# selected platforms.
44986ab0
PDSN
1495config ARCH_NR_GPIO
1496 int
3dea19e8 1497 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
aa42587a
TF
1498 default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || \
1499 SOC_DRA7XX || ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210
eb171a99 1500 default 416 if ARCH_SUNXI
06b851e5 1501 default 392 if ARCH_U8500
01bb914c 1502 default 352 if ARCH_VT8500
7b5da4c3 1503 default 288 if ARCH_ROCKCHIP
2a6ad871 1504 default 264 if MACH_H4700
44986ab0
PDSN
1505 default 0
1506 help
1507 Maximum number of GPIOs in the system.
1508
1509 If unsure, leave the default value.
1510
d45a398f 1511source kernel/Kconfig.preempt
1da177e4 1512
c9218b16 1513config HZ_FIXED
f8065813 1514 int
070b8b43 1515 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || \
a73ddc61 1516 ARCH_S5PV210 || ARCH_EXYNOS4
5248c657 1517 default AT91_TIMER_HZ if ARCH_AT91
bf98c1ea 1518 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE_LEGACY
47d84682 1519 default 0
c9218b16
RK
1520
1521choice
47d84682 1522 depends on HZ_FIXED = 0
c9218b16
RK
1523 prompt "Timer frequency"
1524
1525config HZ_100
1526 bool "100 Hz"
1527
1528config HZ_200
1529 bool "200 Hz"
1530
1531config HZ_250
1532 bool "250 Hz"
1533
1534config HZ_300
1535 bool "300 Hz"
1536
1537config HZ_500
1538 bool "500 Hz"
1539
1540config HZ_1000
1541 bool "1000 Hz"
1542
1543endchoice
1544
1545config HZ
1546 int
47d84682 1547 default HZ_FIXED if HZ_FIXED != 0
c9218b16
RK
1548 default 100 if HZ_100
1549 default 200 if HZ_200
1550 default 250 if HZ_250
1551 default 300 if HZ_300
1552 default 500 if HZ_500
1553 default 1000
1554
1555config SCHED_HRTICK
1556 def_bool HIGH_RES_TIMERS
f8065813 1557
16c79651 1558config THUMB2_KERNEL
bc7dea00 1559 bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
4477ca45 1560 depends on (CPU_V7 || CPU_V7M) && !CPU_V6 && !CPU_V6K
bc7dea00 1561 default y if CPU_THUMBONLY
16c79651
CM
1562 select AEABI
1563 select ARM_ASM_UNIFIED
89bace65 1564 select ARM_UNWIND
16c79651
CM
1565 help
1566 By enabling this option, the kernel will be compiled in
1567 Thumb-2 mode. A compiler/assembler that understand the unified
1568 ARM-Thumb syntax is needed.
1569
1570 If unsure, say N.
1571
6f685c5c
DM
1572config THUMB2_AVOID_R_ARM_THM_JUMP11
1573 bool "Work around buggy Thumb-2 short branch relocations in gas"
1574 depends on THUMB2_KERNEL && MODULES
1575 default y
1576 help
1577 Various binutils versions can resolve Thumb-2 branches to
1578 locally-defined, preemptible global symbols as short-range "b.n"
1579 branch instructions.
1580
1581 This is a problem, because there's no guarantee the final
1582 destination of the symbol, or any candidate locations for a
1583 trampoline, are within range of the branch. For this reason, the
1584 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1585 relocation in modules at all, and it makes little sense to add
1586 support.
1587
1588 The symptom is that the kernel fails with an "unsupported
1589 relocation" error when loading some modules.
1590
1591 Until fixed tools are available, passing
1592 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1593 code which hits this problem, at the cost of a bit of extra runtime
1594 stack usage in some cases.
1595
1596 The problem is described in more detail at:
1597 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1598
1599 Only Thumb-2 kernels are affected.
1600
1601 Unless you are sure your tools don't have this problem, say Y.
1602
0becb088
CM
1603config ARM_ASM_UNIFIED
1604 bool
1605
704bdda0
NP
1606config AEABI
1607 bool "Use the ARM EABI to compile the kernel"
1608 help
1609 This option allows for the kernel to be compiled using the latest
1610 ARM ABI (aka EABI). This is only useful if you are using a user
1611 space environment that is also compiled with EABI.
1612
1613 Since there are major incompatibilities between the legacy ABI and
1614 EABI, especially with regard to structure member alignment, this
1615 option also changes the kernel syscall calling convention to
1616 disambiguate both ABIs and allow for backward compatibility support
1617 (selected with CONFIG_OABI_COMPAT).
1618
1619 To use this you need GCC version 4.0.0 or later.
1620
6c90c872 1621config OABI_COMPAT
a73a3ff1 1622 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
d6f94fa0 1623 depends on AEABI && !THUMB2_KERNEL
6c90c872
NP
1624 help
1625 This option preserves the old syscall interface along with the
1626 new (ARM EABI) one. It also provides a compatibility layer to
1627 intercept syscalls that have structure arguments which layout
1628 in memory differs between the legacy ABI and the new ARM EABI
1629 (only for non "thumb" binaries). This option adds a tiny
1630 overhead to all syscalls and produces a slightly larger kernel.
91702175
KC
1631
1632 The seccomp filter system will not be available when this is
1633 selected, since there is no way yet to sensibly distinguish
1634 between calling conventions during filtering.
1635
6c90c872
NP
1636 If you know you'll be using only pure EABI user space then you
1637 can say N here. If this option is not selected and you attempt
1638 to execute a legacy ABI binary then the result will be
1639 UNPREDICTABLE (in fact it can be predicted that it won't work
b02f8467 1640 at all). If in doubt say N.
6c90c872 1641
eb33575c 1642config ARCH_HAS_HOLES_MEMORYMODEL
e80d6a24 1643 bool
e80d6a24 1644
05944d74
RK
1645config ARCH_SPARSEMEM_ENABLE
1646 bool
1647
07a2f737
RK
1648config ARCH_SPARSEMEM_DEFAULT
1649 def_bool ARCH_SPARSEMEM_ENABLE
1650
05944d74 1651config ARCH_SELECT_MEMORY_MODEL
be370302 1652 def_bool ARCH_SPARSEMEM_ENABLE
c80d79d7 1653
7b7bf499
WD
1654config HAVE_ARCH_PFN_VALID
1655 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1656
053a96ca 1657config HIGHMEM
e8db89a2
RK
1658 bool "High Memory Support"
1659 depends on MMU
053a96ca
NP
1660 help
1661 The address space of ARM processors is only 4 Gigabytes large
1662 and it has to accommodate user address space, kernel address
1663 space as well as some memory mapped IO. That means that, if you
1664 have a large amount of physical memory and/or IO, not all of the
1665 memory can be "permanently mapped" by the kernel. The physical
1666 memory that is not permanently mapped is called "high memory".
1667
1668 Depending on the selected kernel/user memory split, minimum
1669 vmalloc space and actual amount of RAM, you may not need this
1670 option which should result in a slightly faster kernel.
1671
1672 If unsure, say n.
1673
65cec8e3
RK
1674config HIGHPTE
1675 bool "Allocate 2nd-level pagetables from highmem"
1676 depends on HIGHMEM
65cec8e3 1677
1b8873a0
JI
1678config HW_PERF_EVENTS
1679 bool "Enable hardware performance counter support for perf events"
f0d1bc47 1680 depends on PERF_EVENTS
1b8873a0
JI
1681 default y
1682 help
1683 Enable hardware performance counter support for perf events. If
1684 disabled, perf events will use software events only.
1685
1355e2a6
CM
1686config SYS_SUPPORTS_HUGETLBFS
1687 def_bool y
1688 depends on ARM_LPAE
1689
8d962507
CM
1690config HAVE_ARCH_TRANSPARENT_HUGEPAGE
1691 def_bool y
1692 depends on ARM_LPAE
1693
4bfab203
SC
1694config ARCH_WANT_GENERAL_HUGETLB
1695 def_bool y
1696
3f22ab27
DH
1697source "mm/Kconfig"
1698
c1b2d970 1699config FORCE_MAX_ZONEORDER
bf98c1ea
LP
1700 int "Maximum zone order" if ARCH_SHMOBILE_LEGACY
1701 range 11 64 if ARCH_SHMOBILE_LEGACY
898f08e1 1702 default "12" if SOC_AM33XX
6d85e2b0 1703 default "9" if SA1111 || ARCH_EFM32
c1b2d970
MD
1704 default "11"
1705 help
1706 The kernel memory allocator divides physically contiguous memory
1707 blocks into "zones", where each zone is a power of two number of
1708 pages. This option selects the largest power of two that the kernel
1709 keeps in the memory allocator. If you need to allocate very large
1710 blocks of physically contiguous memory, then you may need to
1711 increase this value.
1712
1713 This config option is actually maximum order plus one. For example,
1714 a value of 11 means that the largest free memory block is 2^10 pages.
1715
1da177e4
LT
1716config ALIGNMENT_TRAP
1717 bool
f12d0d7c 1718 depends on CPU_CP15_MMU
1da177e4 1719 default y if !ARCH_EBSA110
e119bfff 1720 select HAVE_PROC_CPU if PROC_FS
1da177e4 1721 help
84eb8d06 1722 ARM processors cannot fetch/store information which is not
1da177e4
LT
1723 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1724 address divisible by 4. On 32-bit ARM processors, these non-aligned
1725 fetch/store instructions will be emulated in software if you say
1726 here, which has a severe performance impact. This is necessary for
1727 correct operation of some network protocols. With an IP-only
1728 configuration it is safe to say N, otherwise say Y.
1729
39ec58f3 1730config UACCESS_WITH_MEMCPY
38ef2ad5
LW
1731 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1732 depends on MMU
39ec58f3
LB
1733 default y if CPU_FEROCEON
1734 help
1735 Implement faster copy_to_user and clear_user methods for CPU
1736 cores where a 8-word STM instruction give significantly higher
1737 memory write throughput than a sequence of individual 32bit stores.
1738
1739 A possible side effect is a slight increase in scheduling latency
1740 between threads sharing the same address space if they invoke
1741 such copy operations with large buffers.
1742
1743 However, if the CPU data cache is using a write-allocate mode,
1744 this option is unlikely to provide any performance gain.
1745
70c70d97
NP
1746config SECCOMP
1747 bool
1748 prompt "Enable seccomp to safely compute untrusted bytecode"
1749 ---help---
1750 This kernel feature is useful for number crunching applications
1751 that may need to compute untrusted bytecode during their
1752 execution. By using pipes or other transports made available to
1753 the process as file descriptors supporting the read/write
1754 syscalls, it's possible to isolate those applications in
1755 their own address space using seccomp. Once seccomp is
1756 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1757 and the task is only allowed to execute a few safe syscalls
1758 defined by each seccomp mode.
1759
06e6295b
SS
1760config SWIOTLB
1761 def_bool y
1762
1763config IOMMU_HELPER
1764 def_bool SWIOTLB
1765
eff8d644
SS
1766config XEN_DOM0
1767 def_bool y
1768 depends on XEN
1769
1770config XEN
1771 bool "Xen guest support on ARM (EXPERIMENTAL)"
85323a99 1772 depends on ARM && AEABI && OF
f880b67d 1773 depends on CPU_V7 && !CPU_V6
85323a99 1774 depends on !GENERIC_ATOMIC64
7693decc 1775 depends on MMU
51aaf81f 1776 select ARCH_DMA_ADDR_T_64BIT
17b7ab80 1777 select ARM_PSCI
83862ccf 1778 select SWIOTLB_XEN
eff8d644
SS
1779 help
1780 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1781
1da177e4
LT
1782endmenu
1783
1784menu "Boot options"
1785
9eb8f674
GL
1786config USE_OF
1787 bool "Flattened Device Tree support"
b1b3f49c 1788 select IRQ_DOMAIN
9eb8f674
GL
1789 select OF
1790 select OF_EARLY_FLATTREE
bcedb5f9 1791 select OF_RESERVED_MEM
9eb8f674
GL
1792 help
1793 Include support for flattened device tree machine descriptions.
1794
bd51e2f5
NP
1795config ATAGS
1796 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1797 default y
1798 help
1799 This is the traditional way of passing data to the kernel at boot
1800 time. If you are solely relying on the flattened device tree (or
1801 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1802 to remove ATAGS support from your kernel binary. If unsure,
1803 leave this to y.
1804
1805config DEPRECATED_PARAM_STRUCT
1806 bool "Provide old way to pass kernel parameters"
1807 depends on ATAGS
1808 help
1809 This was deprecated in 2001 and announced to live on for 5 years.
1810 Some old boot loaders still use this way.
1811
1da177e4
LT
1812# Compressed boot loader in ROM. Yes, we really want to ask about
1813# TEXT and BSS so we preserve their values in the config files.
1814config ZBOOT_ROM_TEXT
1815 hex "Compressed ROM boot loader base address"
1816 default "0"
1817 help
1818 The physical address at which the ROM-able zImage is to be
1819 placed in the target. Platforms which normally make use of
1820 ROM-able zImage formats normally set this to a suitable
1821 value in their defconfig file.
1822
1823 If ZBOOT_ROM is not enabled, this has no effect.
1824
1825config ZBOOT_ROM_BSS
1826 hex "Compressed ROM boot loader BSS address"
1827 default "0"
1828 help
f8c440b2
DF
1829 The base address of an area of read/write memory in the target
1830 for the ROM-able zImage which must be available while the
1831 decompressor is running. It must be large enough to hold the
1832 entire decompressed kernel plus an additional 128 KiB.
1833 Platforms which normally make use of ROM-able zImage formats
1834 normally set this to a suitable value in their defconfig file.
1da177e4
LT
1835
1836 If ZBOOT_ROM is not enabled, this has no effect.
1837
1838config ZBOOT_ROM
1839 bool "Compressed boot loader in ROM/flash"
1840 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
10968131 1841 depends on !ARM_APPENDED_DTB && !XIP_KERNEL && !AUTO_ZRELADDR
1da177e4
LT
1842 help
1843 Say Y here if you intend to execute your compressed kernel image
1844 (zImage) directly from ROM or flash. If unsure, say N.
1845
090ab3ff
SH
1846choice
1847 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
d6f94fa0 1848 depends on ZBOOT_ROM && ARCH_SH7372
090ab3ff
SH
1849 default ZBOOT_ROM_NONE
1850 help
1851 Include experimental SD/MMC loading code in the ROM-able zImage.
59bf8964 1852 With this enabled it is possible to write the ROM-able zImage
090ab3ff
SH
1853 kernel image to an MMC or SD card and boot the kernel straight
1854 from the reset vector. At reset the processor Mask ROM will load
59bf8964 1855 the first part of the ROM-able zImage which in turn loads the
090ab3ff
SH
1856 rest the kernel image to RAM.
1857
1858config ZBOOT_ROM_NONE
1859 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1860 help
1861 Do not load image from SD or MMC
1862
f45b1149
SH
1863config ZBOOT_ROM_MMCIF
1864 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
f45b1149 1865 help
090ab3ff
SH
1866 Load image from MMCIF hardware block.
1867
1868config ZBOOT_ROM_SH_MOBILE_SDHI
1869 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1870 help
1871 Load image from SDHI hardware block
1872
1873endchoice
f45b1149 1874
e2a6a3aa
JB
1875config ARM_APPENDED_DTB
1876 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
10968131 1877 depends on OF
e2a6a3aa
JB
1878 help
1879 With this option, the boot code will look for a device tree binary
1880 (DTB) appended to zImage
1881 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1882
1883 This is meant as a backward compatibility convenience for those
1884 systems with a bootloader that can't be upgraded to accommodate
1885 the documented boot protocol using a device tree.
1886
1887 Beware that there is very little in terms of protection against
1888 this option being confused by leftover garbage in memory that might
1889 look like a DTB header after a reboot if no actual DTB is appended
1890 to zImage. Do not leave this option active in a production kernel
1891 if you don't intend to always append a DTB. Proper passing of the
1892 location into r2 of a bootloader provided DTB is always preferable
1893 to this option.
1894
b90b9a38
NP
1895config ARM_ATAG_DTB_COMPAT
1896 bool "Supplement the appended DTB with traditional ATAG information"
1897 depends on ARM_APPENDED_DTB
1898 help
1899 Some old bootloaders can't be updated to a DTB capable one, yet
1900 they provide ATAGs with memory configuration, the ramdisk address,
1901 the kernel cmdline string, etc. Such information is dynamically
1902 provided by the bootloader and can't always be stored in a static
1903 DTB. To allow a device tree enabled kernel to be used with such
1904 bootloaders, this option allows zImage to extract the information
1905 from the ATAG list and store it at run time into the appended DTB.
1906
d0f34a11
GR
1907choice
1908 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
1909 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1910
1911config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1912 bool "Use bootloader kernel arguments if available"
1913 help
1914 Uses the command-line options passed by the boot loader instead of
1915 the device tree bootargs property. If the boot loader doesn't provide
1916 any, the device tree bootargs property will be used.
1917
1918config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
1919 bool "Extend with bootloader kernel arguments"
1920 help
1921 The command-line arguments provided by the boot loader will be
1922 appended to the the device tree bootargs property.
1923
1924endchoice
1925
1da177e4
LT
1926config CMDLINE
1927 string "Default kernel command string"
1928 default ""
1929 help
1930 On some architectures (EBSA110 and CATS), there is currently no way
1931 for the boot loader to pass arguments to the kernel. For these
1932 architectures, you should supply some command-line options at build
1933 time by entering them here. As a minimum, you should specify the
1934 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1935
4394c124
VB
1936choice
1937 prompt "Kernel command line type" if CMDLINE != ""
1938 default CMDLINE_FROM_BOOTLOADER
bd51e2f5 1939 depends on ATAGS
4394c124
VB
1940
1941config CMDLINE_FROM_BOOTLOADER
1942 bool "Use bootloader kernel arguments if available"
1943 help
1944 Uses the command-line options passed by the boot loader. If
1945 the boot loader doesn't provide any, the default kernel command
1946 string provided in CMDLINE will be used.
1947
1948config CMDLINE_EXTEND
1949 bool "Extend bootloader kernel arguments"
1950 help
1951 The command-line arguments provided by the boot loader will be
1952 appended to the default kernel command string.
1953
92d2040d
AH
1954config CMDLINE_FORCE
1955 bool "Always use the default kernel command string"
92d2040d
AH
1956 help
1957 Always use the default kernel command string, even if the boot
1958 loader passes other arguments to the kernel.
1959 This is useful if you cannot or don't want to change the
1960 command-line options your boot loader passes to the kernel.
4394c124 1961endchoice
92d2040d 1962
1da177e4
LT
1963config XIP_KERNEL
1964 bool "Kernel Execute-In-Place from ROM"
10968131 1965 depends on !ARM_LPAE && !ARCH_MULTIPLATFORM
1da177e4
LT
1966 help
1967 Execute-In-Place allows the kernel to run from non-volatile storage
1968 directly addressable by the CPU, such as NOR flash. This saves RAM
1969 space since the text section of the kernel is not loaded from flash
1970 to RAM. Read-write sections, such as the data section and stack,
1971 are still copied to RAM. The XIP kernel is not compressed since
1972 it has to run directly from flash, so it will take more space to
1973 store it. The flash address used to link the kernel object files,
1974 and for storing it, is configuration dependent. Therefore, if you
1975 say Y here, you must know the proper physical address where to
1976 store the kernel image depending on your own flash memory usage.
1977
1978 Also note that the make target becomes "make xipImage" rather than
1979 "make zImage" or "make Image". The final kernel binary to put in
1980 ROM memory will be arch/arm/boot/xipImage.
1981
1982 If unsure, say N.
1983
1984config XIP_PHYS_ADDR
1985 hex "XIP Kernel Physical Location"
1986 depends on XIP_KERNEL
1987 default "0x00080000"
1988 help
1989 This is the physical address in your flash memory the kernel will
1990 be linked for and stored to. This address is dependent on your
1991 own flash usage.
1992
c587e4a6
RP
1993config KEXEC
1994 bool "Kexec system call (EXPERIMENTAL)"
19ab428f 1995 depends on (!SMP || PM_SLEEP_SMP)
c587e4a6
RP
1996 help
1997 kexec is a system call that implements the ability to shutdown your
1998 current kernel, and to start another kernel. It is like a reboot
01dd2fbf 1999 but it is independent of the system firmware. And like a reboot
c587e4a6
RP
2000 you can start any kernel with it, not just Linux.
2001
2002 It is an ongoing process to be certain the hardware in a machine
2003 is properly shutdown, so do not be surprised if this code does not
bf220695 2004 initially work for you.
c587e4a6 2005
4cd9d6f7
RP
2006config ATAGS_PROC
2007 bool "Export atags in procfs"
bd51e2f5 2008 depends on ATAGS && KEXEC
b98d7291 2009 default y
4cd9d6f7
RP
2010 help
2011 Should the atags used to boot the kernel be exported in an "atags"
2012 file in procfs. Useful with kexec.
2013
cb5d39b3
MW
2014config CRASH_DUMP
2015 bool "Build kdump crash kernel (EXPERIMENTAL)"
cb5d39b3
MW
2016 help
2017 Generate crash dump after being started by kexec. This should
2018 be normally only set in special crash dump kernels which are
2019 loaded in the main kernel with kexec-tools into a specially
2020 reserved region and then later executed after a crash by
2021 kdump/kexec. The crash dump kernel must be compiled to a
2022 memory address not used by the main kernel
2023
2024 For more details see Documentation/kdump/kdump.txt
2025
e69edc79
EM
2026config AUTO_ZRELADDR
2027 bool "Auto calculation of the decompressed kernel image address"
e69edc79
EM
2028 help
2029 ZRELADDR is the physical address where the decompressed kernel
2030 image will be placed. If AUTO_ZRELADDR is selected, the address
2031 will be determined at run-time by masking the current IP with
2032 0xf8000000. This assumes the zImage being placed in the first 128MB
2033 from start of memory.
2034
1da177e4
LT
2035endmenu
2036
ac9d7efc 2037menu "CPU Power Management"
1da177e4 2038
1da177e4 2039source "drivers/cpufreq/Kconfig"
1da177e4 2040
ac9d7efc
RK
2041source "drivers/cpuidle/Kconfig"
2042
2043endmenu
2044
1da177e4
LT
2045menu "Floating point emulation"
2046
2047comment "At least one emulation must be selected"
2048
2049config FPE_NWFPE
2050 bool "NWFPE math emulation"
593c252a 2051 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
1da177e4
LT
2052 ---help---
2053 Say Y to include the NWFPE floating point emulator in the kernel.
2054 This is necessary to run most binaries. Linux does not currently
2055 support floating point hardware so you need to say Y here even if
2056 your machine has an FPA or floating point co-processor podule.
2057
2058 You may say N here if you are going to load the Acorn FPEmulator
2059 early in the bootup.
2060
2061config FPE_NWFPE_XP
2062 bool "Support extended precision"
bedf142b 2063 depends on FPE_NWFPE
1da177e4
LT
2064 help
2065 Say Y to include 80-bit support in the kernel floating-point
2066 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2067 Note that gcc does not generate 80-bit operations by default,
2068 so in most cases this option only enlarges the size of the
2069 floating point emulator without any good reason.
2070
2071 You almost surely want to say N here.
2072
2073config FPE_FASTFPE
2074 bool "FastFPE math emulation (EXPERIMENTAL)"
d6f94fa0 2075 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
1da177e4
LT
2076 ---help---
2077 Say Y here to include the FAST floating point emulator in the kernel.
2078 This is an experimental much faster emulator which now also has full
2079 precision for the mantissa. It does not support any exceptions.
2080 It is very simple, and approximately 3-6 times faster than NWFPE.
2081
2082 It should be sufficient for most programs. It may be not suitable
2083 for scientific calculations, but you have to check this for yourself.
2084 If you do not feel you need a faster FP emulation you should better
2085 choose NWFPE.
2086
2087config VFP
2088 bool "VFP-format floating point maths"
e399b1a4 2089 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
1da177e4
LT
2090 help
2091 Say Y to include VFP support code in the kernel. This is needed
2092 if your hardware includes a VFP unit.
2093
2094 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2095 release notes and additional status information.
2096
2097 Say N if your target does not have VFP hardware.
2098
25ebee02
CM
2099config VFPv3
2100 bool
2101 depends on VFP
2102 default y if CPU_V7
2103
b5872db4
CM
2104config NEON
2105 bool "Advanced SIMD (NEON) Extension support"
2106 depends on VFPv3 && CPU_V7
2107 help
2108 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2109 Extension.
2110
73c132c1
AB
2111config KERNEL_MODE_NEON
2112 bool "Support for NEON in kernel mode"
c4a30c3b 2113 depends on NEON && AEABI
73c132c1
AB
2114 help
2115 Say Y to include support for NEON in kernel mode.
2116
1da177e4
LT
2117endmenu
2118
2119menu "Userspace binary formats"
2120
2121source "fs/Kconfig.binfmt"
2122
2123config ARTHUR
2124 tristate "RISC OS personality"
704bdda0 2125 depends on !AEABI
1da177e4
LT
2126 help
2127 Say Y here to include the kernel code necessary if you want to run
2128 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2129 experimental; if this sounds frightening, say N and sleep in peace.
2130 You can also say M here to compile this support as a module (which
2131 will be called arthur).
2132
2133endmenu
2134
2135menu "Power management options"
2136
eceab4ac 2137source "kernel/power/Kconfig"
1da177e4 2138
f4cb5700 2139config ARCH_SUSPEND_POSSIBLE
19a0519d 2140 depends on CPU_ARM920T || CPU_ARM926T || CPU_FEROCEON || CPU_SA1100 || \
f0d75153 2141 CPU_V6 || CPU_V6K || CPU_V7 || CPU_V7M || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
f4cb5700
JB
2142 def_bool y
2143
15e0d9e3
AB
2144config ARM_CPU_SUSPEND
2145 def_bool PM_SLEEP
2146
603fb42a
SC
2147config ARCH_HIBERNATION_POSSIBLE
2148 bool
2149 depends on MMU
2150 default y if ARCH_SUSPEND_POSSIBLE
2151
1da177e4
LT
2152endmenu
2153
d5950b43
SR
2154source "net/Kconfig"
2155
ac25150f 2156source "drivers/Kconfig"
1da177e4
LT
2157
2158source "fs/Kconfig"
2159
1da177e4
LT
2160source "arch/arm/Kconfig.debug"
2161
2162source "security/Kconfig"
2163
2164source "crypto/Kconfig"
2165
2166source "lib/Kconfig"
749cf76c
CD
2167
2168source "arch/arm/kvm/Kconfig"
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