Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | # |
2 | # For a description of the syntax of this configuration file, | |
3 | # see Documentation/kbuild/kconfig-language.txt. | |
4 | # | |
5 | ||
6 | mainmenu "Linux Kernel Configuration" | |
7 | ||
8 | config ARM | |
9 | bool | |
10 | default y | |
e17c6d56 | 11 | select HAVE_AOUT |
2064c946 | 12 | select HAVE_IDE |
12b824fb | 13 | select RTC_LIB |
75e7153a | 14 | select SYS_SUPPORTS_APM_EMULATION |
24b44a66 | 15 | select GENERIC_ATOMIC64 if (!CPU_32v6K) |
42d4b839 | 16 | select HAVE_OPROFILE |
5cbad0eb | 17 | select HAVE_ARCH_KGDB |
3f550096 | 18 | select HAVE_KPROBES if (!XIP_KERNEL) |
9edddaa2 | 19 | select HAVE_KRETPROBES if (HAVE_KPROBES) |
606576ce | 20 | select HAVE_FUNCTION_TRACER if (!XIP_KERNEL) |
1fe53268 | 21 | select HAVE_GENERIC_DMA_COHERENT |
e7db7b42 AT |
22 | select HAVE_KERNEL_GZIP |
23 | select HAVE_KERNEL_LZO | |
7ada189f JI |
24 | select HAVE_PERF_EVENTS |
25 | select PERF_USE_VMALLOC | |
1da177e4 LT |
26 | help |
27 | The ARM series is a line of low-power-consumption RISC chip designs | |
f6c8965a | 28 | licensed by ARM Ltd and targeted at embedded applications and |
1da177e4 | 29 | handhelds such as the Compaq IPAQ. ARM-based PCs are no longer |
f6c8965a | 30 | manufactured, but legacy ARM-based PC hardware remains popular in |
1da177e4 LT |
31 | Europe. There is an ARM Linux project with a web page at |
32 | <http://www.arm.linux.org.uk/>. | |
33 | ||
1a189b97 RK |
34 | config HAVE_PWM |
35 | bool | |
36 | ||
75e7153a RB |
37 | config SYS_SUPPORTS_APM_EMULATION |
38 | bool | |
39 | ||
0a938b97 DB |
40 | config GENERIC_GPIO |
41 | bool | |
0a938b97 | 42 | |
746140c7 KH |
43 | config GENERIC_TIME |
44 | bool | |
5cfc8ee0 JS |
45 | default y |
46 | ||
47 | config ARCH_USES_GETTIMEOFFSET | |
48 | bool | |
49 | default n | |
746140c7 | 50 | |
0567a0c0 KH |
51 | config GENERIC_CLOCKEVENTS |
52 | bool | |
0567a0c0 | 53 | |
a8655e83 CM |
54 | config GENERIC_CLOCKEVENTS_BROADCAST |
55 | bool | |
56 | depends on GENERIC_CLOCKEVENTS | |
57 | default y if SMP && !LOCAL_TIMERS | |
58 | ||
bc581770 LW |
59 | config HAVE_TCM |
60 | bool | |
61 | select GENERIC_ALLOCATOR | |
62 | ||
e119bfff RK |
63 | config HAVE_PROC_CPU |
64 | bool | |
65 | ||
5ea81769 AV |
66 | config NO_IOPORT |
67 | bool | |
5ea81769 | 68 | |
1da177e4 LT |
69 | config EISA |
70 | bool | |
71 | ---help--- | |
72 | The Extended Industry Standard Architecture (EISA) bus was | |
73 | developed as an open alternative to the IBM MicroChannel bus. | |
74 | ||
75 | The EISA bus provided some of the features of the IBM MicroChannel | |
76 | bus while maintaining backward compatibility with cards made for | |
77 | the older ISA bus. The EISA bus saw limited use between 1988 and | |
78 | 1995 when it was made obsolete by the PCI bus. | |
79 | ||
80 | Say Y here if you are building a kernel for an EISA-based machine. | |
81 | ||
82 | Otherwise, say N. | |
83 | ||
84 | config SBUS | |
85 | bool | |
86 | ||
87 | config MCA | |
88 | bool | |
89 | help | |
90 | MicroChannel Architecture is found in some IBM PS/2 machines and | |
91 | laptops. It is a bus system similar to PCI or ISA. See | |
92 | <file:Documentation/mca.txt> (and especially the web page given | |
93 | there) before attempting to build an MCA bus kernel. | |
94 | ||
4a2581a0 TG |
95 | config GENERIC_HARDIRQS |
96 | bool | |
97 | default y | |
98 | ||
f16fb1ec RK |
99 | config STACKTRACE_SUPPORT |
100 | bool | |
101 | default y | |
102 | ||
f76e9154 NP |
103 | config HAVE_LATENCYTOP_SUPPORT |
104 | bool | |
105 | depends on !SMP | |
106 | default y | |
107 | ||
f16fb1ec RK |
108 | config LOCKDEP_SUPPORT |
109 | bool | |
110 | default y | |
111 | ||
7ad1bcb2 RK |
112 | config TRACE_IRQFLAGS_SUPPORT |
113 | bool | |
114 | default y | |
115 | ||
4a2581a0 TG |
116 | config HARDIRQS_SW_RESEND |
117 | bool | |
118 | default y | |
119 | ||
120 | config GENERIC_IRQ_PROBE | |
121 | bool | |
122 | default y | |
123 | ||
95c354fe NP |
124 | config GENERIC_LOCKBREAK |
125 | bool | |
126 | default y | |
127 | depends on SMP && PREEMPT | |
128 | ||
1da177e4 LT |
129 | config RWSEM_GENERIC_SPINLOCK |
130 | bool | |
131 | default y | |
132 | ||
133 | config RWSEM_XCHGADD_ALGORITHM | |
134 | bool | |
135 | ||
f0d1b0b3 DH |
136 | config ARCH_HAS_ILOG2_U32 |
137 | bool | |
f0d1b0b3 DH |
138 | |
139 | config ARCH_HAS_ILOG2_U64 | |
140 | bool | |
f0d1b0b3 | 141 | |
89c52ed4 BD |
142 | config ARCH_HAS_CPUFREQ |
143 | bool | |
144 | help | |
145 | Internal node to signify that the ARCH has CPUFREQ support | |
146 | and that the relevant menu configurations are displayed for | |
147 | it. | |
148 | ||
b89c3b16 AM |
149 | config GENERIC_HWEIGHT |
150 | bool | |
151 | default y | |
152 | ||
1da177e4 LT |
153 | config GENERIC_CALIBRATE_DELAY |
154 | bool | |
155 | default y | |
156 | ||
a08b6b79 Z |
157 | config ARCH_MAY_HAVE_PC_FDC |
158 | bool | |
159 | ||
5ac6da66 CL |
160 | config ZONE_DMA |
161 | bool | |
5ac6da66 | 162 | |
ccd7ab7f FT |
163 | config NEED_DMA_MAP_STATE |
164 | def_bool y | |
165 | ||
1da177e4 LT |
166 | config GENERIC_ISA_DMA |
167 | bool | |
168 | ||
1da177e4 LT |
169 | config FIQ |
170 | bool | |
171 | ||
034d2f5a AV |
172 | config ARCH_MTD_XIP |
173 | bool | |
174 | ||
60a752ef | 175 | config GENERIC_HARDIRQS_NO__DO_IRQ |
60a752ef PZ |
176 | def_bool y |
177 | ||
d6d502fa KK |
178 | config ARM_L1_CACHE_SHIFT_6 |
179 | bool | |
180 | help | |
181 | Setting ARM L1 cache line size to 64 Bytes. | |
182 | ||
c0ffa3a9 MD |
183 | if OPROFILE |
184 | ||
185 | config OPROFILE_ARMV6 | |
186 | def_bool y | |
187 | depends on CPU_V6 && !SMP | |
188 | select OPROFILE_ARM11_CORE | |
189 | ||
190 | config OPROFILE_MPCORE | |
191 | def_bool y | |
192 | depends on CPU_V6 && SMP | |
193 | select OPROFILE_ARM11_CORE | |
194 | ||
195 | config OPROFILE_ARM11_CORE | |
196 | bool | |
197 | ||
d7ac4e28 JP |
198 | config OPROFILE_ARMV7 |
199 | def_bool y | |
200 | depends on CPU_V7 && !SMP | |
201 | bool | |
202 | ||
c0ffa3a9 MD |
203 | endif |
204 | ||
c760fc19 HC |
205 | config VECTORS_BASE |
206 | hex | |
6afd6fae | 207 | default 0xffff0000 if MMU || CPU_HIGH_VECTOR |
c760fc19 HC |
208 | default DRAM_BASE if REMAP_VECTORS_TO_RAM |
209 | default 0x00000000 | |
210 | help | |
211 | The base address of exception vectors. | |
212 | ||
1da177e4 LT |
213 | source "init/Kconfig" |
214 | ||
dc52ddc0 MH |
215 | source "kernel/Kconfig.freezer" |
216 | ||
1da177e4 LT |
217 | menu "System Type" |
218 | ||
3c427975 HC |
219 | config MMU |
220 | bool "MMU-based Paged Memory Management Support" | |
221 | default y | |
222 | help | |
223 | Select if you want MMU-based virtualised addressing space | |
224 | support by paged memory management. If unsure, say 'Y'. | |
225 | ||
ccf50e23 RK |
226 | # |
227 | # The "ARM system type" choice list is ordered alphabetically by option | |
228 | # text. Please add new entries in the option alphabetic order. | |
229 | # | |
1da177e4 LT |
230 | choice |
231 | prompt "ARM system type" | |
6a0e2430 | 232 | default ARCH_VERSATILE |
1da177e4 | 233 | |
4af6fee1 DS |
234 | config ARCH_AAEC2000 |
235 | bool "Agilent AAEC-2000 based" | |
c750815e | 236 | select CPU_ARM920T |
4af6fee1 | 237 | select ARM_AMBA |
9483a578 | 238 | select HAVE_CLK |
5cfc8ee0 | 239 | select ARCH_USES_GETTIMEOFFSET |
4af6fee1 DS |
240 | help |
241 | This enables support for systems based on the Agilent AAEC-2000 | |
242 | ||
243 | config ARCH_INTEGRATOR | |
244 | bool "ARM Ltd. Integrator family" | |
245 | select ARM_AMBA | |
89c52ed4 | 246 | select ARCH_HAS_CPUFREQ |
d72fbdf0 | 247 | select COMMON_CLKDEV |
4af6fee1 DS |
248 | select ICST525 |
249 | help | |
250 | Support for ARM's Integrator platform. | |
251 | ||
252 | config ARCH_REALVIEW | |
253 | bool "ARM Ltd. RealView family" | |
254 | select ARM_AMBA | |
cf30fb4a | 255 | select COMMON_CLKDEV |
4af6fee1 | 256 | select ICST307 |
85802afe | 257 | select GENERIC_TIME |
ae30ceac | 258 | select GENERIC_CLOCKEVENTS |
eb7fffa3 | 259 | select ARCH_WANT_OPTIONAL_GPIOLIB |
4af6fee1 DS |
260 | help |
261 | This enables support for ARM Ltd RealView boards. | |
262 | ||
263 | config ARCH_VERSATILE | |
264 | bool "ARM Ltd. Versatile family" | |
265 | select ARM_AMBA | |
266 | select ARM_VIC | |
71a06da0 | 267 | select COMMON_CLKDEV |
4af6fee1 | 268 | select ICST307 |
b49c87c2 | 269 | select GENERIC_TIME |
89df1272 | 270 | select GENERIC_CLOCKEVENTS |
bbeddc43 | 271 | select ARCH_WANT_OPTIONAL_GPIOLIB |
4af6fee1 DS |
272 | help |
273 | This enables support for ARM Ltd Versatile board. | |
274 | ||
8fc5ffa0 AV |
275 | config ARCH_AT91 |
276 | bool "Atmel AT91" | |
0a938b97 | 277 | select GENERIC_GPIO |
f373e8c0 | 278 | select ARCH_REQUIRE_GPIOLIB |
93686ae8 | 279 | select HAVE_CLK |
5cfc8ee0 | 280 | select ARCH_USES_GETTIMEOFFSET |
4af6fee1 | 281 | help |
2b3b3516 AV |
282 | This enables support for systems based on the Atmel AT91RM9200, |
283 | AT91SAM9 and AT91CAP9 processors. | |
4af6fee1 | 284 | |
ccf50e23 RK |
285 | config ARCH_BCMRING |
286 | bool "Broadcom BCMRING" | |
287 | depends on MMU | |
288 | select CPU_V6 | |
289 | select ARM_AMBA | |
290 | select COMMON_CLKDEV | |
291 | select GENERIC_TIME | |
292 | select GENERIC_CLOCKEVENTS | |
293 | select ARCH_WANT_OPTIONAL_GPIOLIB | |
294 | help | |
295 | Support for Broadcom's BCMRing platform. | |
296 | ||
1da177e4 | 297 | config ARCH_CLPS711X |
4af6fee1 | 298 | bool "Cirrus Logic CLPS711x/EP721x-based" |
c750815e | 299 | select CPU_ARM720T |
5cfc8ee0 | 300 | select ARCH_USES_GETTIMEOFFSET |
f999b8bd MM |
301 | help |
302 | Support for Cirrus Logic 711x/721x based boards. | |
1da177e4 | 303 | |
788c9700 RK |
304 | config ARCH_GEMINI |
305 | bool "Cortina Systems Gemini" | |
306 | select CPU_FA526 | |
307 | select GENERIC_GPIO | |
308 | select ARCH_REQUIRE_GPIOLIB | |
5cfc8ee0 | 309 | select ARCH_USES_GETTIMEOFFSET |
788c9700 RK |
310 | help |
311 | Support for the Cortina Systems Gemini family SoCs | |
312 | ||
1da177e4 LT |
313 | config ARCH_EBSA110 |
314 | bool "EBSA-110" | |
c750815e | 315 | select CPU_SA110 |
f7e68bbf | 316 | select ISA |
c5eb2a2b | 317 | select NO_IOPORT |
5cfc8ee0 | 318 | select ARCH_USES_GETTIMEOFFSET |
1da177e4 LT |
319 | help |
320 | This is an evaluation board for the StrongARM processor available | |
f6c8965a | 321 | from Digital. It has limited hardware on-board, including an |
1da177e4 LT |
322 | Ethernet interface, two PCMCIA sockets, two serial ports and a |
323 | parallel port. | |
324 | ||
e7736d47 LB |
325 | config ARCH_EP93XX |
326 | bool "EP93xx-based" | |
c750815e | 327 | select CPU_ARM920T |
e7736d47 LB |
328 | select ARM_AMBA |
329 | select ARM_VIC | |
4e9f9fd5 | 330 | select GENERIC_GPIO |
ae696fd5 | 331 | select COMMON_CLKDEV |
7444a72e | 332 | select ARCH_REQUIRE_GPIOLIB |
eb33575c | 333 | select ARCH_HAS_HOLES_MEMORYMODEL |
5cfc8ee0 | 334 | select ARCH_USES_GETTIMEOFFSET |
e7736d47 LB |
335 | help |
336 | This enables support for the Cirrus EP93xx series of CPUs. | |
337 | ||
1da177e4 LT |
338 | config ARCH_FOOTBRIDGE |
339 | bool "FootBridge" | |
c750815e | 340 | select CPU_SA110 |
1da177e4 | 341 | select FOOTBRIDGE |
5cfc8ee0 | 342 | select ARCH_USES_GETTIMEOFFSET |
f999b8bd MM |
343 | help |
344 | Support for systems based on the DC21285 companion chip | |
345 | ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder. | |
1da177e4 | 346 | |
788c9700 RK |
347 | config ARCH_MXC |
348 | bool "Freescale MXC/iMX-based" | |
349 | select GENERIC_TIME | |
350 | select GENERIC_CLOCKEVENTS | |
788c9700 | 351 | select ARCH_REQUIRE_GPIOLIB |
03e09cd8 | 352 | select COMMON_CLKDEV |
788c9700 RK |
353 | help |
354 | Support for Freescale MXC/iMX-based family of processors | |
355 | ||
7bd0f2f5 | 356 | config ARCH_STMP3XXX |
357 | bool "Freescale STMP3xxx" | |
358 | select CPU_ARM926T | |
7bd0f2f5 | 359 | select COMMON_CLKDEV |
360 | select ARCH_REQUIRE_GPIOLIB | |
361 | select GENERIC_TIME | |
362 | select GENERIC_CLOCKEVENTS | |
363 | select GENERIC_GPIO | |
364 | select USB_ARCH_HAS_EHCI | |
365 | help | |
366 | Support for systems based on the Freescale 3xxx CPUs. | |
367 | ||
4af6fee1 DS |
368 | config ARCH_NETX |
369 | bool "Hilscher NetX based" | |
c750815e | 370 | select CPU_ARM926T |
4af6fee1 | 371 | select ARM_VIC |
2fcfe6b8 | 372 | select GENERIC_CLOCKEVENTS |
21edecd3 | 373 | select GENERIC_TIME |
f999b8bd | 374 | help |
4af6fee1 DS |
375 | This enables support for systems based on the Hilscher NetX Soc |
376 | ||
377 | config ARCH_H720X | |
378 | bool "Hynix HMS720x-based" | |
c750815e | 379 | select CPU_ARM720T |
4af6fee1 | 380 | select ISA_DMA_API |
5cfc8ee0 | 381 | select ARCH_USES_GETTIMEOFFSET |
4af6fee1 DS |
382 | help |
383 | This enables support for systems based on the Hynix HMS720x | |
384 | ||
3b938be6 RK |
385 | config ARCH_IOP13XX |
386 | bool "IOP13xx-based" | |
387 | depends on MMU | |
c750815e | 388 | select CPU_XSC3 |
3b938be6 RK |
389 | select PLAT_IOP |
390 | select PCI | |
391 | select ARCH_SUPPORTS_MSI | |
8d5796d2 | 392 | select VMSPLIT_1G |
3b938be6 RK |
393 | help |
394 | Support for Intel's IOP13XX (XScale) family of processors. | |
395 | ||
3f7e5815 LB |
396 | config ARCH_IOP32X |
397 | bool "IOP32x-based" | |
a4f7e763 | 398 | depends on MMU |
c750815e | 399 | select CPU_XSCALE |
7ae1f7ec | 400 | select PLAT_IOP |
f7e68bbf | 401 | select PCI |
63f385cd | 402 | select GENERIC_GPIO |
bb2b180c | 403 | select ARCH_REQUIRE_GPIOLIB |
f999b8bd | 404 | help |
3f7e5815 LB |
405 | Support for Intel's 80219 and IOP32X (XScale) family of |
406 | processors. | |
407 | ||
408 | config ARCH_IOP33X | |
409 | bool "IOP33x-based" | |
410 | depends on MMU | |
c750815e | 411 | select CPU_XSCALE |
7ae1f7ec | 412 | select PLAT_IOP |
3f7e5815 | 413 | select PCI |
63f385cd | 414 | select GENERIC_GPIO |
bb2b180c | 415 | select ARCH_REQUIRE_GPIOLIB |
3f7e5815 LB |
416 | help |
417 | Support for Intel's IOP33X (XScale) family of processors. | |
1da177e4 | 418 | |
3b938be6 RK |
419 | config ARCH_IXP23XX |
420 | bool "IXP23XX-based" | |
a4f7e763 | 421 | depends on MMU |
c750815e | 422 | select CPU_XSC3 |
3b938be6 | 423 | select PCI |
5cfc8ee0 | 424 | select ARCH_USES_GETTIMEOFFSET |
f999b8bd | 425 | help |
3b938be6 | 426 | Support for Intel's IXP23xx (XScale) family of processors. |
1da177e4 LT |
427 | |
428 | config ARCH_IXP2000 | |
429 | bool "IXP2400/2800-based" | |
a4f7e763 | 430 | depends on MMU |
c750815e | 431 | select CPU_XSCALE |
f7e68bbf | 432 | select PCI |
5cfc8ee0 | 433 | select ARCH_USES_GETTIMEOFFSET |
f999b8bd MM |
434 | help |
435 | Support for Intel's IXP2400/2800 (XScale) family of processors. | |
1da177e4 | 436 | |
3b938be6 RK |
437 | config ARCH_IXP4XX |
438 | bool "IXP4xx-based" | |
a4f7e763 | 439 | depends on MMU |
c750815e | 440 | select CPU_XSCALE |
8858e9af | 441 | select GENERIC_GPIO |
3b938be6 RK |
442 | select GENERIC_TIME |
443 | select GENERIC_CLOCKEVENTS | |
485bdde7 | 444 | select DMABOUNCE if PCI |
c4713074 | 445 | help |
3b938be6 | 446 | Support for Intel's IXP4XX (XScale) family of processors. |
c4713074 | 447 | |
1da177e4 LT |
448 | config ARCH_L7200 |
449 | bool "LinkUp-L7200" | |
c750815e | 450 | select CPU_ARM720T |
1da177e4 | 451 | select FIQ |
5cfc8ee0 | 452 | select ARCH_USES_GETTIMEOFFSET |
1da177e4 LT |
453 | help |
454 | Say Y here if you intend to run this kernel on a LinkUp Systems | |
455 | L7200 Software Development Board which uses an ARM720T processor. | |
456 | Information on this board can be obtained at: | |
457 | ||
458 | <http://www.linkupsys.com/> | |
459 | ||
460 | If you have any questions or comments about the Linux kernel port | |
461 | to this board, send e-mail to <sjhill@cotw.com>. | |
462 | ||
edabd38e SB |
463 | config ARCH_DOVE |
464 | bool "Marvell Dove" | |
465 | select PCI | |
466 | select GENERIC_GPIO | |
467 | select ARCH_REQUIRE_GPIOLIB | |
468 | select GENERIC_TIME | |
469 | select GENERIC_CLOCKEVENTS | |
470 | select PLAT_ORION | |
471 | help | |
472 | Support for the Marvell Dove SoC 88AP510 | |
473 | ||
651c74c7 SB |
474 | config ARCH_KIRKWOOD |
475 | bool "Marvell Kirkwood" | |
c750815e | 476 | select CPU_FEROCEON |
651c74c7 | 477 | select PCI |
4c213430 | 478 | select GENERIC_GPIO |
a8865655 | 479 | select ARCH_REQUIRE_GPIOLIB |
651c74c7 SB |
480 | select GENERIC_TIME |
481 | select GENERIC_CLOCKEVENTS | |
482 | select PLAT_ORION | |
483 | help | |
484 | Support for the following Marvell Kirkwood series SoCs: | |
485 | 88F6180, 88F6192 and 88F6281. | |
486 | ||
777f9beb LB |
487 | config ARCH_LOKI |
488 | bool "Marvell Loki (88RC8480)" | |
c750815e | 489 | select CPU_FEROCEON |
777f9beb LB |
490 | select GENERIC_TIME |
491 | select GENERIC_CLOCKEVENTS | |
492 | select PLAT_ORION | |
493 | help | |
494 | Support for the Marvell Loki (88RC8480) SoC. | |
495 | ||
794d15b2 SS |
496 | config ARCH_MV78XX0 |
497 | bool "Marvell MV78xx0" | |
c750815e | 498 | select CPU_FEROCEON |
794d15b2 | 499 | select PCI |
b95a13d7 | 500 | select GENERIC_GPIO |
a8865655 | 501 | select ARCH_REQUIRE_GPIOLIB |
794d15b2 SS |
502 | select GENERIC_TIME |
503 | select GENERIC_CLOCKEVENTS | |
504 | select PLAT_ORION | |
505 | help | |
506 | Support for the following Marvell MV78xx0 series SoCs: | |
507 | MV781x0, MV782x0. | |
508 | ||
9dd0b194 | 509 | config ARCH_ORION5X |
585cf175 TP |
510 | bool "Marvell Orion" |
511 | depends on MMU | |
c750815e | 512 | select CPU_FEROCEON |
038ee083 | 513 | select PCI |
01af72e4 | 514 | select GENERIC_GPIO |
a8865655 | 515 | select ARCH_REQUIRE_GPIOLIB |
51cbff1d TP |
516 | select GENERIC_TIME |
517 | select GENERIC_CLOCKEVENTS | |
69b02f6a | 518 | select PLAT_ORION |
585cf175 | 519 | help |
9dd0b194 | 520 | Support for the following Marvell Orion 5x series SoCs: |
d2b2a6bb | 521 | Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182), |
d323ade1 | 522 | Orion-2 (5281), Orion-1-90 (6183). |
585cf175 | 523 | |
788c9700 | 524 | config ARCH_MMP |
2f7e8fae | 525 | bool "Marvell PXA168/910/MMP2" |
788c9700 RK |
526 | depends on MMU |
527 | select GENERIC_GPIO | |
528 | select ARCH_REQUIRE_GPIOLIB | |
788c9700 RK |
529 | select COMMON_CLKDEV |
530 | select GENERIC_TIME | |
531 | select GENERIC_CLOCKEVENTS | |
532 | select TICK_ONESHOT | |
533 | select PLAT_PXA | |
534 | help | |
2f7e8fae | 535 | Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line. |
788c9700 RK |
536 | |
537 | config ARCH_KS8695 | |
538 | bool "Micrel/Kendin KS8695" | |
539 | select CPU_ARM922T | |
540 | select GENERIC_GPIO | |
541 | select ARCH_REQUIRE_GPIOLIB | |
5cfc8ee0 | 542 | select ARCH_USES_GETTIMEOFFSET |
788c9700 RK |
543 | help |
544 | Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based | |
545 | System-on-Chip devices. | |
546 | ||
547 | config ARCH_NS9XXX | |
548 | bool "NetSilicon NS9xxx" | |
549 | select CPU_ARM926T | |
550 | select GENERIC_GPIO | |
551 | select GENERIC_TIME | |
552 | select GENERIC_CLOCKEVENTS | |
553 | select HAVE_CLK | |
554 | help | |
555 | Say Y here if you intend to run this kernel on a NetSilicon NS9xxx | |
556 | System. | |
557 | ||
558 | <http://www.digi.com/products/microprocessors/index.jsp> | |
559 | ||
560 | config ARCH_W90X900 | |
561 | bool "Nuvoton W90X900 CPU" | |
562 | select CPU_ARM926T | |
c52d3d68 | 563 | select ARCH_REQUIRE_GPIOLIB |
564 | select GENERIC_GPIO | |
0e4a34bb | 565 | select COMMON_CLKDEV |
58b5369e | 566 | select GENERIC_TIME |
567 | select GENERIC_CLOCKEVENTS | |
788c9700 | 568 | help |
a8bc4ead | 569 | Support for Nuvoton (Winbond logic dept.) ARM9 processor, |
570 | At present, the w90x900 has been renamed nuc900, regarding | |
571 | the ARM series product line, you can login the following | |
572 | link address to know more. | |
573 | ||
574 | <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/ | |
575 | ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller> | |
788c9700 | 576 | |
a62e9030 | 577 | config ARCH_NUC93X |
578 | bool "Nuvoton NUC93X CPU" | |
579 | select CPU_ARM926T | |
a62e9030 | 580 | select COMMON_CLKDEV |
581 | help | |
582 | Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a | |
583 | low-power and high performance MPEG-4/JPEG multimedia controller chip. | |
584 | ||
4af6fee1 DS |
585 | config ARCH_PNX4008 |
586 | bool "Philips Nexperia PNX4008 Mobile" | |
c750815e | 587 | select CPU_ARM926T |
6985a5ad | 588 | select COMMON_CLKDEV |
5cfc8ee0 | 589 | select ARCH_USES_GETTIMEOFFSET |
4af6fee1 DS |
590 | help |
591 | This enables support for Philips PNX4008 mobile platform. | |
592 | ||
1da177e4 | 593 | config ARCH_PXA |
2c8086a5 | 594 | bool "PXA2xx/PXA3xx-based" |
a4f7e763 | 595 | depends on MMU |
034d2f5a | 596 | select ARCH_MTD_XIP |
89c52ed4 | 597 | select ARCH_HAS_CPUFREQ |
0a938b97 | 598 | select GENERIC_GPIO |
8c3abc7d | 599 | select COMMON_CLKDEV |
7444a72e | 600 | select ARCH_REQUIRE_GPIOLIB |
45cf5eef | 601 | select GENERIC_TIME |
981d0f39 | 602 | select GENERIC_CLOCKEVENTS |
a88264c2 | 603 | select TICK_ONESHOT |
bd5ce433 | 604 | select PLAT_PXA |
f999b8bd | 605 | help |
2c8086a5 | 606 | Support for Intel/Marvell's PXA2xx/PXA3xx processor line. |
1da177e4 | 607 | |
788c9700 RK |
608 | config ARCH_MSM |
609 | bool "Qualcomm MSM" | |
610 | select CPU_V6 | |
49cbe786 EM |
611 | select GENERIC_TIME |
612 | select GENERIC_CLOCKEVENTS | |
49cbe786 | 613 | help |
788c9700 RK |
614 | Support for Qualcomm MSM7K based systems. This runs on the ARM11 |
615 | apps processor of the MSM7K and depends on a shared memory | |
616 | interface to the ARM9 modem processor which runs the baseband stack | |
617 | and controls some vital subsystems (clock and power control, etc). | |
49cbe786 | 618 | |
c793c1b0 MD |
619 | config ARCH_SHMOBILE |
620 | bool "Renesas SH-Mobile" | |
621 | help | |
622 | Support for Renesas's SH-Mobile ARM platforms | |
623 | ||
1da177e4 LT |
624 | config ARCH_RPC |
625 | bool "RiscPC" | |
626 | select ARCH_ACORN | |
627 | select FIQ | |
628 | select TIMER_ACORN | |
a08b6b79 | 629 | select ARCH_MAY_HAVE_PC_FDC |
341eb781 | 630 | select HAVE_PATA_PLATFORM |
065909b9 | 631 | select ISA_DMA_API |
5ea81769 | 632 | select NO_IOPORT |
07f841b7 | 633 | select ARCH_SPARSEMEM_ENABLE |
5cfc8ee0 | 634 | select ARCH_USES_GETTIMEOFFSET |
1da177e4 LT |
635 | help |
636 | On the Acorn Risc-PC, Linux can support the internal IDE disk and | |
637 | CD-ROM interface, serial and parallel port, and the floppy drive. | |
638 | ||
639 | config ARCH_SA1100 | |
640 | bool "SA1100-based" | |
c750815e | 641 | select CPU_SA1100 |
f7e68bbf | 642 | select ISA |
05944d74 | 643 | select ARCH_SPARSEMEM_ENABLE |
034d2f5a | 644 | select ARCH_MTD_XIP |
89c52ed4 | 645 | select ARCH_HAS_CPUFREQ |
1937f5b9 | 646 | select CPU_FREQ |
0a938b97 | 647 | select GENERIC_GPIO |
d142b6e7 | 648 | select GENERIC_TIME |
3e238be2 | 649 | select GENERIC_CLOCKEVENTS |
9483a578 | 650 | select HAVE_CLK |
3e238be2 | 651 | select TICK_ONESHOT |
7444a72e | 652 | select ARCH_REQUIRE_GPIOLIB |
f999b8bd MM |
653 | help |
654 | Support for StrongARM 11x0 based boards. | |
1da177e4 LT |
655 | |
656 | config ARCH_S3C2410 | |
e4d06e39 | 657 | bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443" |
0a938b97 | 658 | select GENERIC_GPIO |
9d56c02a | 659 | select ARCH_HAS_CPUFREQ |
9483a578 | 660 | select HAVE_CLK |
5cfc8ee0 | 661 | select ARCH_USES_GETTIMEOFFSET |
1da177e4 LT |
662 | help |
663 | Samsung S3C2410X CPU based systems, such as the Simtec Electronics | |
664 | BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or | |
f6c8965a | 665 | the Samsung SMDK2410 development board (and derivatives). |
1da177e4 | 666 | |
a08ab637 BD |
667 | config ARCH_S3C64XX |
668 | bool "Samsung S3C64XX" | |
89f1fa08 | 669 | select PLAT_SAMSUNG |
89f0ce72 | 670 | select CPU_V6 |
a08ab637 | 671 | select GENERIC_GPIO |
89f0ce72 | 672 | select ARM_VIC |
a08ab637 | 673 | select HAVE_CLK |
89f0ce72 | 674 | select NO_IOPORT |
5cfc8ee0 | 675 | select ARCH_USES_GETTIMEOFFSET |
89c52ed4 | 676 | select ARCH_HAS_CPUFREQ |
89f0ce72 BD |
677 | select ARCH_REQUIRE_GPIOLIB |
678 | select SAMSUNG_CLKSRC | |
679 | select SAMSUNG_IRQ_VIC_TIMER | |
680 | select SAMSUNG_IRQ_UART | |
681 | select S3C_GPIO_TRACK | |
682 | select S3C_GPIO_PULL_UPDOWN | |
683 | select S3C_GPIO_CFG_S3C24XX | |
684 | select S3C_GPIO_CFG_S3C64XX | |
685 | select S3C_DEV_NAND | |
686 | select USB_ARCH_HAS_OHCI | |
687 | select SAMSUNG_GPIOLIB_4BIT | |
a08ab637 BD |
688 | help |
689 | Samsung S3C64XX series based systems | |
690 | ||
c4ffccdd KK |
691 | config ARCH_S5P6440 |
692 | bool "Samsung S5P6440" | |
693 | select CPU_V6 | |
694 | select GENERIC_GPIO | |
695 | select HAVE_CLK | |
696 | help | |
697 | Samsung S5P6440 CPU based systems | |
698 | ||
550db7f1 KK |
699 | config ARCH_S5P6442 |
700 | bool "Samsung S5P6442" | |
701 | select CPU_V6 | |
702 | select GENERIC_GPIO | |
703 | select HAVE_CLK | |
704 | help | |
705 | Samsung S5P6442 CPU based systems | |
706 | ||
5a7652f2 BM |
707 | config ARCH_S5PC1XX |
708 | bool "Samsung S5PC1XX" | |
709 | select GENERIC_GPIO | |
710 | select HAVE_CLK | |
711 | select CPU_V7 | |
d6d502fa | 712 | select ARM_L1_CACHE_SHIFT_6 |
5a7652f2 BM |
713 | help |
714 | Samsung S5PC1XX series based systems | |
715 | ||
170f4e42 KK |
716 | config ARCH_S5PV210 |
717 | bool "Samsung S5PV210/S5PC110" | |
718 | select CPU_V7 | |
719 | select GENERIC_GPIO | |
720 | select HAVE_CLK | |
721 | select ARM_L1_CACHE_SHIFT_6 | |
722 | help | |
723 | Samsung S5PV210/S5PC110 series based systems | |
724 | ||
1da177e4 LT |
725 | config ARCH_SHARK |
726 | bool "Shark" | |
c750815e | 727 | select CPU_SA110 |
f7e68bbf RK |
728 | select ISA |
729 | select ISA_DMA | |
3bca103a | 730 | select ZONE_DMA |
f7e68bbf | 731 | select PCI |
5cfc8ee0 | 732 | select ARCH_USES_GETTIMEOFFSET |
f999b8bd MM |
733 | help |
734 | Support for the StrongARM based Digital DNARD machine, also known | |
735 | as "Shark" (<http://www.shark-linux.de/shark.html>). | |
1da177e4 LT |
736 | |
737 | config ARCH_LH7A40X | |
738 | bool "Sharp LH7A40X" | |
c750815e | 739 | select CPU_ARM922T |
4ba3f7c5 RK |
740 | select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM |
741 | select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM | |
5cfc8ee0 | 742 | select ARCH_USES_GETTIMEOFFSET |
1da177e4 LT |
743 | help |
744 | Say Y here for systems based on one of the Sharp LH7A40X | |
745 | System on a Chip processors. These CPUs include an ARM922T | |
746 | core with a wide array of integrated devices for | |
747 | hand-held and low-power applications. | |
748 | ||
d98aac75 LW |
749 | config ARCH_U300 |
750 | bool "ST-Ericsson U300 Series" | |
751 | depends on MMU | |
752 | select CPU_ARM926T | |
bc581770 | 753 | select HAVE_TCM |
d98aac75 LW |
754 | select ARM_AMBA |
755 | select ARM_VIC | |
756 | select GENERIC_TIME | |
757 | select GENERIC_CLOCKEVENTS | |
d98aac75 LW |
758 | select COMMON_CLKDEV |
759 | select GENERIC_GPIO | |
760 | help | |
761 | Support for ST-Ericsson U300 series mobile platforms. | |
762 | ||
ccf50e23 RK |
763 | config ARCH_U8500 |
764 | bool "ST-Ericsson U8500 Series" | |
765 | select CPU_V7 | |
766 | select ARM_AMBA | |
767 | select GENERIC_TIME | |
768 | select GENERIC_CLOCKEVENTS | |
769 | select COMMON_CLKDEV | |
770 | help | |
771 | Support for ST-Ericsson's Ux500 architecture | |
772 | ||
773 | config ARCH_NOMADIK | |
774 | bool "STMicroelectronics Nomadik" | |
775 | select ARM_AMBA | |
776 | select ARM_VIC | |
777 | select CPU_ARM926T | |
ccf50e23 RK |
778 | select COMMON_CLKDEV |
779 | select GENERIC_TIME | |
780 | select GENERIC_CLOCKEVENTS | |
781 | select GENERIC_GPIO | |
782 | select ARCH_REQUIRE_GPIOLIB | |
783 | help | |
784 | Support for the Nomadik platform by ST-Ericsson | |
785 | ||
7c6337e2 KH |
786 | config ARCH_DAVINCI |
787 | bool "TI DaVinci" | |
c750815e | 788 | select CPU_ARM926T |
7c6337e2 KH |
789 | select GENERIC_TIME |
790 | select GENERIC_CLOCKEVENTS | |
3d9edf09 | 791 | select GENERIC_GPIO |
dce1115b | 792 | select ARCH_REQUIRE_GPIOLIB |
3bca103a | 793 | select ZONE_DMA |
9232fcc9 | 794 | select HAVE_IDE |
c5b736d0 | 795 | select COMMON_CLKDEV |
20e9969b | 796 | select GENERIC_ALLOCATOR |
ae88e05a | 797 | select ARCH_HAS_HOLES_MEMORYMODEL |
7c6337e2 KH |
798 | help |
799 | Support for TI's DaVinci platform. | |
800 | ||
3b938be6 RK |
801 | config ARCH_OMAP |
802 | bool "TI OMAP" | |
803 | select GENERIC_GPIO | |
9483a578 | 804 | select HAVE_CLK |
7444a72e | 805 | select ARCH_REQUIRE_GPIOLIB |
89c52ed4 | 806 | select ARCH_HAS_CPUFREQ |
3b938be6 | 807 | select GENERIC_TIME |
06cad098 | 808 | select GENERIC_CLOCKEVENTS |
9af915da | 809 | select ARCH_HAS_HOLES_MEMORYMODEL |
3b938be6 RK |
810 | help |
811 | Support for TI's OMAP platform (OMAP1 and OMAP2). | |
812 | ||
1da177e4 LT |
813 | endchoice |
814 | ||
ccf50e23 RK |
815 | # |
816 | # This is sorted alphabetically by mach-* pathname. However, plat-* | |
817 | # Kconfigs may be included either alphabetically (according to the | |
818 | # plat- suffix) or along side the corresponding mach-* source. | |
819 | # | |
95b8f20f RK |
820 | source "arch/arm/mach-aaec2000/Kconfig" |
821 | ||
822 | source "arch/arm/mach-at91/Kconfig" | |
823 | ||
824 | source "arch/arm/mach-bcmring/Kconfig" | |
825 | ||
1da177e4 LT |
826 | source "arch/arm/mach-clps711x/Kconfig" |
827 | ||
95b8f20f RK |
828 | source "arch/arm/mach-davinci/Kconfig" |
829 | ||
830 | source "arch/arm/mach-dove/Kconfig" | |
831 | ||
e7736d47 LB |
832 | source "arch/arm/mach-ep93xx/Kconfig" |
833 | ||
1da177e4 LT |
834 | source "arch/arm/mach-footbridge/Kconfig" |
835 | ||
59d3a193 PZ |
836 | source "arch/arm/mach-gemini/Kconfig" |
837 | ||
95b8f20f RK |
838 | source "arch/arm/mach-h720x/Kconfig" |
839 | ||
1da177e4 LT |
840 | source "arch/arm/mach-integrator/Kconfig" |
841 | ||
3f7e5815 LB |
842 | source "arch/arm/mach-iop32x/Kconfig" |
843 | ||
844 | source "arch/arm/mach-iop33x/Kconfig" | |
1da177e4 | 845 | |
285f5fa7 DW |
846 | source "arch/arm/mach-iop13xx/Kconfig" |
847 | ||
1da177e4 LT |
848 | source "arch/arm/mach-ixp4xx/Kconfig" |
849 | ||
850 | source "arch/arm/mach-ixp2000/Kconfig" | |
851 | ||
c4713074 LB |
852 | source "arch/arm/mach-ixp23xx/Kconfig" |
853 | ||
95b8f20f RK |
854 | source "arch/arm/mach-kirkwood/Kconfig" |
855 | ||
856 | source "arch/arm/mach-ks8695/Kconfig" | |
857 | ||
858 | source "arch/arm/mach-lh7a40x/Kconfig" | |
859 | ||
777f9beb LB |
860 | source "arch/arm/mach-loki/Kconfig" |
861 | ||
95b8f20f RK |
862 | source "arch/arm/mach-msm/Kconfig" |
863 | ||
794d15b2 SS |
864 | source "arch/arm/mach-mv78xx0/Kconfig" |
865 | ||
95b8f20f | 866 | source "arch/arm/plat-mxc/Kconfig" |
1da177e4 | 867 | |
95b8f20f | 868 | source "arch/arm/mach-netx/Kconfig" |
49cbe786 | 869 | |
95b8f20f RK |
870 | source "arch/arm/mach-nomadik/Kconfig" |
871 | source "arch/arm/plat-nomadik/Kconfig" | |
872 | ||
873 | source "arch/arm/mach-ns9xxx/Kconfig" | |
1da177e4 | 874 | |
186f93ea | 875 | source "arch/arm/mach-nuc93x/Kconfig" |
1da177e4 | 876 | |
d48af15e TL |
877 | source "arch/arm/plat-omap/Kconfig" |
878 | ||
879 | source "arch/arm/mach-omap1/Kconfig" | |
1da177e4 | 880 | |
1dbae815 TL |
881 | source "arch/arm/mach-omap2/Kconfig" |
882 | ||
9dd0b194 | 883 | source "arch/arm/mach-orion5x/Kconfig" |
585cf175 | 884 | |
95b8f20f RK |
885 | source "arch/arm/mach-pxa/Kconfig" |
886 | source "arch/arm/plat-pxa/Kconfig" | |
585cf175 | 887 | |
95b8f20f RK |
888 | source "arch/arm/mach-mmp/Kconfig" |
889 | ||
890 | source "arch/arm/mach-realview/Kconfig" | |
891 | ||
892 | source "arch/arm/mach-sa1100/Kconfig" | |
edabd38e | 893 | |
cf383678 | 894 | source "arch/arm/plat-samsung/Kconfig" |
a21765a7 | 895 | source "arch/arm/plat-s3c24xx/Kconfig" |
c4ffccdd | 896 | source "arch/arm/plat-s5p/Kconfig" |
5a7652f2 | 897 | source "arch/arm/plat-s5pc1xx/Kconfig" |
a21765a7 BD |
898 | |
899 | if ARCH_S3C2410 | |
900 | source "arch/arm/mach-s3c2400/Kconfig" | |
1da177e4 | 901 | source "arch/arm/mach-s3c2410/Kconfig" |
a21765a7 BD |
902 | source "arch/arm/mach-s3c2412/Kconfig" |
903 | source "arch/arm/mach-s3c2440/Kconfig" | |
e4d06e39 | 904 | source "arch/arm/mach-s3c2443/Kconfig" |
a21765a7 | 905 | endif |
1da177e4 | 906 | |
a08ab637 | 907 | if ARCH_S3C64XX |
431107ea | 908 | source "arch/arm/mach-s3c64xx/Kconfig" |
a08ab637 BD |
909 | endif |
910 | ||
c4ffccdd KK |
911 | source "arch/arm/mach-s5p6440/Kconfig" |
912 | ||
550db7f1 | 913 | source "arch/arm/mach-s5p6442/Kconfig" |
7bd0f2f5 | 914 | |
5a7652f2 BM |
915 | if ARCH_S5PC1XX |
916 | source "arch/arm/mach-s5pc100/Kconfig" | |
917 | endif | |
918 | ||
170f4e42 KK |
919 | source "arch/arm/mach-s5pv210/Kconfig" |
920 | ||
882d01f9 | 921 | source "arch/arm/mach-shmobile/Kconfig" |
52c543f9 | 922 | |
882d01f9 | 923 | source "arch/arm/plat-stmp3xxx/Kconfig" |
9e73c84c | 924 | |
95b8f20f | 925 | source "arch/arm/mach-u300/Kconfig" |
1da177e4 | 926 | |
95b8f20f | 927 | source "arch/arm/mach-ux500/Kconfig" |
1da177e4 LT |
928 | |
929 | source "arch/arm/mach-versatile/Kconfig" | |
930 | ||
7ec80ddf | 931 | source "arch/arm/mach-w90x900/Kconfig" |
932 | ||
1da177e4 LT |
933 | # Definitions to make life easier |
934 | config ARCH_ACORN | |
935 | bool | |
936 | ||
7ae1f7ec LB |
937 | config PLAT_IOP |
938 | bool | |
469d3044 | 939 | select GENERIC_CLOCKEVENTS |
980f2296 | 940 | select GENERIC_TIME |
7ae1f7ec | 941 | |
69b02f6a LB |
942 | config PLAT_ORION |
943 | bool | |
944 | ||
bd5ce433 EM |
945 | config PLAT_PXA |
946 | bool | |
947 | ||
1da177e4 LT |
948 | source arch/arm/mm/Kconfig |
949 | ||
afe4b25e LB |
950 | config IWMMXT |
951 | bool "Enable iWMMXt support" | |
40305a58 EM |
952 | depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK |
953 | default y if PXA27x || PXA3xx || ARCH_MMP | |
afe4b25e LB |
954 | help |
955 | Enable support for iWMMXt context switching at run time if | |
956 | running on a CPU that supports it. | |
957 | ||
1da177e4 LT |
958 | # bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER |
959 | config XSCALE_PMU | |
960 | bool | |
961 | depends on CPU_XSCALE && !XSCALE_PMU_TIMER | |
962 | default y | |
963 | ||
0f4f0672 JI |
964 | config CPU_HAS_PMU |
965 | depends on CPU_V6 || CPU_V7 || XSCALE_PMU | |
966 | default y | |
967 | bool | |
968 | ||
3b93e7b0 HC |
969 | if !MMU |
970 | source "arch/arm/Kconfig-nommu" | |
971 | endif | |
972 | ||
9cba3ccc CM |
973 | config ARM_ERRATA_411920 |
974 | bool "ARM errata: Invalidation of the Instruction Cache operation can fail" | |
975 | depends on CPU_V6 && !SMP | |
976 | help | |
977 | Invalidation of the Instruction Cache operation can | |
978 | fail. This erratum is present in 1136 (before r1p4), 1156 and 1176. | |
979 | It does not affect the MPCore. This option enables the ARM Ltd. | |
980 | recommended workaround. | |
981 | ||
7ce236fc CM |
982 | config ARM_ERRATA_430973 |
983 | bool "ARM errata: Stale prediction on replaced interworking branch" | |
984 | depends on CPU_V7 | |
985 | help | |
986 | This option enables the workaround for the 430973 Cortex-A8 | |
987 | (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb | |
988 | interworking branch is replaced with another code sequence at the | |
989 | same virtual address, whether due to self-modifying code or virtual | |
990 | to physical address re-mapping, Cortex-A8 does not recover from the | |
991 | stale interworking branch prediction. This results in Cortex-A8 | |
992 | executing the new code sequence in the incorrect ARM or Thumb state. | |
993 | The workaround enables the BTB/BTAC operations by setting ACTLR.IBE | |
994 | and also flushes the branch target cache at every context switch. | |
995 | Note that setting specific bits in the ACTLR register may not be | |
996 | available in non-secure mode. | |
997 | ||
855c551f CM |
998 | config ARM_ERRATA_458693 |
999 | bool "ARM errata: Processor deadlock when a false hazard is created" | |
1000 | depends on CPU_V7 | |
1001 | help | |
1002 | This option enables the workaround for the 458693 Cortex-A8 (r2p0) | |
1003 | erratum. For very specific sequences of memory operations, it is | |
1004 | possible for a hazard condition intended for a cache line to instead | |
1005 | be incorrectly associated with a different cache line. This false | |
1006 | hazard might then cause a processor deadlock. The workaround enables | |
1007 | the L1 caching of the NEON accesses and disables the PLD instruction | |
1008 | in the ACTLR register. Note that setting specific bits in the ACTLR | |
1009 | register may not be available in non-secure mode. | |
1010 | ||
0516e464 CM |
1011 | config ARM_ERRATA_460075 |
1012 | bool "ARM errata: Data written to the L2 cache can be overwritten with stale data" | |
1013 | depends on CPU_V7 | |
1014 | help | |
1015 | This option enables the workaround for the 460075 Cortex-A8 (r2p0) | |
1016 | erratum. Any asynchronous access to the L2 cache may encounter a | |
1017 | situation in which recent store transactions to the L2 cache are lost | |
1018 | and overwritten with stale memory contents from external memory. The | |
1019 | workaround disables the write-allocate mode for the L2 cache via the | |
1020 | ACTLR register. Note that setting specific bits in the ACTLR register | |
1021 | may not be available in non-secure mode. | |
1022 | ||
9e65582a SS |
1023 | config PL310_ERRATA_588369 |
1024 | bool "Clean & Invalidate maintenance operations do not invalidate clean lines" | |
1025 | depends on CACHE_L2X0 && ARCH_OMAP4 | |
1026 | help | |
1027 | The PL310 L2 cache controller implements three types of Clean & | |
1028 | Invalidate maintenance operations: by Physical Address | |
1029 | (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC). | |
1030 | They are architecturally defined to behave as the execution of a | |
1031 | clean operation followed immediately by an invalidate operation, | |
1032 | both performing to the same memory location. This functionality | |
1033 | is not correctly implemented in PL310 as clean lines are not | |
1034 | invalidated as a result of these operations. Note that this errata | |
1035 | uses Texas Instrument's secure monitor api. | |
1da177e4 LT |
1036 | endmenu |
1037 | ||
1038 | source "arch/arm/common/Kconfig" | |
1039 | ||
1040 | config FORCE_MAX_ZONEORDER | |
1041 | int | |
1042 | depends on SA1111 | |
1043 | default "9" | |
1044 | ||
1045 | menu "Bus support" | |
1046 | ||
1047 | config ARM_AMBA | |
1048 | bool | |
1049 | ||
1050 | config ISA | |
1051 | bool | |
1da177e4 LT |
1052 | help |
1053 | Find out whether you have ISA slots on your motherboard. ISA is the | |
1054 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
1055 | inside your box. Other bus systems are PCI, EISA, MicroChannel | |
1056 | (MCA) or VESA. ISA is an older system, now being displaced by PCI; | |
1057 | newer boards don't support it. If you have ISA, say Y, otherwise N. | |
1058 | ||
065909b9 | 1059 | # Select ISA DMA controller support |
1da177e4 LT |
1060 | config ISA_DMA |
1061 | bool | |
065909b9 | 1062 | select ISA_DMA_API |
1da177e4 | 1063 | |
065909b9 | 1064 | # Select ISA DMA interface |
5cae841b AV |
1065 | config ISA_DMA_API |
1066 | bool | |
5cae841b | 1067 | |
1da177e4 | 1068 | config PCI |
a0113a99 | 1069 | bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE |
1da177e4 LT |
1070 | help |
1071 | Find out whether you have a PCI motherboard. PCI is the name of a | |
1072 | bus system, i.e. the way the CPU talks to the other stuff inside | |
1073 | your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or | |
1074 | VESA. If you have PCI, say Y, otherwise N. | |
1075 | ||
36e23590 MW |
1076 | config PCI_SYSCALL |
1077 | def_bool PCI | |
1078 | ||
1da177e4 LT |
1079 | # Select the host bridge type |
1080 | config PCI_HOST_VIA82C505 | |
1081 | bool | |
1082 | depends on PCI && ARCH_SHARK | |
1083 | default y | |
1084 | ||
a0113a99 MR |
1085 | config PCI_HOST_ITE8152 |
1086 | bool | |
1087 | depends on PCI && MACH_ARMCORE | |
1088 | default y | |
1089 | select DMABOUNCE | |
1090 | ||
1da177e4 LT |
1091 | source "drivers/pci/Kconfig" |
1092 | ||
1093 | source "drivers/pcmcia/Kconfig" | |
1094 | ||
1095 | endmenu | |
1096 | ||
1097 | menu "Kernel Features" | |
1098 | ||
0567a0c0 KH |
1099 | source "kernel/time/Kconfig" |
1100 | ||
1da177e4 LT |
1101 | config SMP |
1102 | bool "Symmetric Multi-Processing (EXPERIMENTAL)" | |
42578c82 | 1103 | depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\ |
850265e8 | 1104 | MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500) |
bc28248e | 1105 | depends on GENERIC_CLOCKEVENTS |
f6dd9fa5 | 1106 | select USE_GENERIC_SMP_HELPERS |
850265e8 | 1107 | select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500) |
1da177e4 LT |
1108 | help |
1109 | This enables support for systems with more than one CPU. If you have | |
1110 | a system with only one CPU, like most personal computers, say N. If | |
1111 | you have a system with more than one CPU, say Y. | |
1112 | ||
1113 | If you say N here, the kernel will run on single and multiprocessor | |
1114 | machines, but will use only one CPU of a multiprocessor machine. If | |
1115 | you say Y here, the kernel will run on many, but not all, single | |
1116 | processor machines. On a single processor machine, the kernel will | |
1117 | run faster if you say N here. | |
1118 | ||
03502faa | 1119 | See also <file:Documentation/i386/IO-APIC.txt>, |
1da177e4 LT |
1120 | <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at |
1121 | <http://www.linuxdoc.org/docs.html#howto>. | |
1122 | ||
1123 | If you don't know what to do here, say N. | |
1124 | ||
a8cbcd92 RK |
1125 | config HAVE_ARM_SCU |
1126 | bool | |
1127 | depends on SMP | |
1128 | help | |
1129 | This option enables support for the ARM system coherency unit | |
1130 | ||
f32f4ce2 RK |
1131 | config HAVE_ARM_TWD |
1132 | bool | |
1133 | depends on SMP | |
1134 | help | |
1135 | This options enables support for the ARM timer and watchdog unit | |
1136 | ||
8d5796d2 LB |
1137 | choice |
1138 | prompt "Memory split" | |
1139 | default VMSPLIT_3G | |
1140 | help | |
1141 | Select the desired split between kernel and user memory. | |
1142 | ||
1143 | If you are not absolutely sure what you are doing, leave this | |
1144 | option alone! | |
1145 | ||
1146 | config VMSPLIT_3G | |
1147 | bool "3G/1G user/kernel split" | |
1148 | config VMSPLIT_2G | |
1149 | bool "2G/2G user/kernel split" | |
1150 | config VMSPLIT_1G | |
1151 | bool "1G/3G user/kernel split" | |
1152 | endchoice | |
1153 | ||
1154 | config PAGE_OFFSET | |
1155 | hex | |
1156 | default 0x40000000 if VMSPLIT_1G | |
1157 | default 0x80000000 if VMSPLIT_2G | |
1158 | default 0xC0000000 | |
1159 | ||
1da177e4 LT |
1160 | config NR_CPUS |
1161 | int "Maximum number of CPUs (2-32)" | |
1162 | range 2 32 | |
1163 | depends on SMP | |
1164 | default "4" | |
1165 | ||
a054a811 RK |
1166 | config HOTPLUG_CPU |
1167 | bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" | |
1168 | depends on SMP && HOTPLUG && EXPERIMENTAL | |
1169 | help | |
1170 | Say Y here to experiment with turning CPUs off and on. CPUs | |
1171 | can be controlled through /sys/devices/system/cpu. | |
1172 | ||
37ee16ae RK |
1173 | config LOCAL_TIMERS |
1174 | bool "Use local timer interrupts" | |
42578c82 | 1175 | depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \ |
850265e8 | 1176 | REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500) |
37ee16ae | 1177 | default y |
850265e8 | 1178 | select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500) |
37ee16ae RK |
1179 | help |
1180 | Enable support for local timers on SMP platforms, rather then the | |
1181 | legacy IPI broadcast method. Local timers allows the system | |
1182 | accounting to be spread across the timer interval, preventing a | |
1183 | "thundering herd" at every timer tick. | |
1184 | ||
d45a398f | 1185 | source kernel/Kconfig.preempt |
1da177e4 | 1186 | |
f8065813 RK |
1187 | config HZ |
1188 | int | |
1189 | default 128 if ARCH_L7200 | |
170f4e42 | 1190 | default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || ARCH_S5P6442 || ARCH_S5PV210 |
bfe65704 | 1191 | default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER |
5248c657 | 1192 | default AT91_TIMER_HZ if ARCH_AT91 |
f8065813 RK |
1193 | default 100 |
1194 | ||
16c79651 CM |
1195 | config THUMB2_KERNEL |
1196 | bool "Compile the kernel in Thumb-2 mode" | |
1197 | depends on CPU_V7 && EXPERIMENTAL | |
1198 | select AEABI | |
1199 | select ARM_ASM_UNIFIED | |
1200 | help | |
1201 | By enabling this option, the kernel will be compiled in | |
1202 | Thumb-2 mode. A compiler/assembler that understand the unified | |
1203 | ARM-Thumb syntax is needed. | |
1204 | ||
1205 | If unsure, say N. | |
1206 | ||
0becb088 CM |
1207 | config ARM_ASM_UNIFIED |
1208 | bool | |
1209 | ||
704bdda0 NP |
1210 | config AEABI |
1211 | bool "Use the ARM EABI to compile the kernel" | |
1212 | help | |
1213 | This option allows for the kernel to be compiled using the latest | |
1214 | ARM ABI (aka EABI). This is only useful if you are using a user | |
1215 | space environment that is also compiled with EABI. | |
1216 | ||
1217 | Since there are major incompatibilities between the legacy ABI and | |
1218 | EABI, especially with regard to structure member alignment, this | |
1219 | option also changes the kernel syscall calling convention to | |
1220 | disambiguate both ABIs and allow for backward compatibility support | |
1221 | (selected with CONFIG_OABI_COMPAT). | |
1222 | ||
1223 | To use this you need GCC version 4.0.0 or later. | |
1224 | ||
6c90c872 | 1225 | config OABI_COMPAT |
a73a3ff1 | 1226 | bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)" |
61c484d4 | 1227 | depends on AEABI && EXPERIMENTAL |
6c90c872 NP |
1228 | default y |
1229 | help | |
1230 | This option preserves the old syscall interface along with the | |
1231 | new (ARM EABI) one. It also provides a compatibility layer to | |
1232 | intercept syscalls that have structure arguments which layout | |
1233 | in memory differs between the legacy ABI and the new ARM EABI | |
1234 | (only for non "thumb" binaries). This option adds a tiny | |
1235 | overhead to all syscalls and produces a slightly larger kernel. | |
1236 | If you know you'll be using only pure EABI user space then you | |
1237 | can say N here. If this option is not selected and you attempt | |
1238 | to execute a legacy ABI binary then the result will be | |
1239 | UNPREDICTABLE (in fact it can be predicted that it won't work | |
1240 | at all). If in doubt say Y. | |
1241 | ||
eb33575c | 1242 | config ARCH_HAS_HOLES_MEMORYMODEL |
e80d6a24 | 1243 | bool |
e80d6a24 | 1244 | |
07a2f737 | 1245 | # Discontigmem is deprecated |
3f22ab27 | 1246 | config ARCH_DISCONTIGMEM_ENABLE |
1da177e4 | 1247 | bool |
1da177e4 | 1248 | |
05944d74 RK |
1249 | config ARCH_SPARSEMEM_ENABLE |
1250 | bool | |
1251 | ||
07a2f737 RK |
1252 | config ARCH_SPARSEMEM_DEFAULT |
1253 | def_bool ARCH_SPARSEMEM_ENABLE | |
1254 | ||
05944d74 | 1255 | config ARCH_SELECT_MEMORY_MODEL |
07a2f737 | 1256 | def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE |
05944d74 | 1257 | |
c80d79d7 YG |
1258 | config NODES_SHIFT |
1259 | int | |
1260 | default "4" if ARCH_LH7A40X | |
1261 | default "2" | |
1262 | depends on NEED_MULTIPLE_NODES | |
1263 | ||
053a96ca NP |
1264 | config HIGHMEM |
1265 | bool "High Memory Support (EXPERIMENTAL)" | |
1266 | depends on MMU && EXPERIMENTAL | |
1267 | help | |
1268 | The address space of ARM processors is only 4 Gigabytes large | |
1269 | and it has to accommodate user address space, kernel address | |
1270 | space as well as some memory mapped IO. That means that, if you | |
1271 | have a large amount of physical memory and/or IO, not all of the | |
1272 | memory can be "permanently mapped" by the kernel. The physical | |
1273 | memory that is not permanently mapped is called "high memory". | |
1274 | ||
1275 | Depending on the selected kernel/user memory split, minimum | |
1276 | vmalloc space and actual amount of RAM, you may not need this | |
1277 | option which should result in a slightly faster kernel. | |
1278 | ||
1279 | If unsure, say n. | |
1280 | ||
65cec8e3 RK |
1281 | config HIGHPTE |
1282 | bool "Allocate 2nd-level pagetables from highmem" | |
1283 | depends on HIGHMEM | |
1284 | depends on !OUTER_CACHE | |
1285 | ||
1b8873a0 JI |
1286 | config HW_PERF_EVENTS |
1287 | bool "Enable hardware performance counter support for perf events" | |
796d1295 | 1288 | depends on PERF_EVENTS && CPU_HAS_PMU && (CPU_V6 || CPU_V7) |
1b8873a0 JI |
1289 | default y |
1290 | help | |
1291 | Enable hardware performance counter support for perf events. If | |
1292 | disabled, perf events will use software events only. | |
1293 | ||
3f22ab27 DH |
1294 | source "mm/Kconfig" |
1295 | ||
1da177e4 LT |
1296 | config LEDS |
1297 | bool "Timer and CPU usage LEDs" | |
e055d5bf | 1298 | depends on ARCH_CDB89712 || ARCH_EBSA110 || \ |
8c8fdbc9 | 1299 | ARCH_EBSA285 || ARCH_INTEGRATOR || \ |
1da177e4 LT |
1300 | ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \ |
1301 | ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \ | |
73a59c1c | 1302 | ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \ |
25329671 | 1303 | ARCH_AT91 || ARCH_DAVINCI || \ |
ff3042fb | 1304 | ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW |
1da177e4 LT |
1305 | help |
1306 | If you say Y here, the LEDs on your machine will be used | |
1307 | to provide useful information about your current system status. | |
1308 | ||
1309 | If you are compiling a kernel for a NetWinder or EBSA-285, you will | |
1310 | be able to select which LEDs are active using the options below. If | |
1311 | you are compiling a kernel for the EBSA-110 or the LART however, the | |
1312 | red LED will simply flash regularly to indicate that the system is | |
1313 | still functional. It is safe to say Y here if you have a CATS | |
1314 | system, but the driver will do nothing. | |
1315 | ||
1316 | config LEDS_TIMER | |
1317 | bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \ | |
eebdf7d7 DB |
1318 | OMAP_OSK_MISTRAL || MACH_OMAP_H2 \ |
1319 | || MACH_OMAP_PERSEUS2 | |
1da177e4 | 1320 | depends on LEDS |
0567a0c0 | 1321 | depends on !GENERIC_CLOCKEVENTS |
1da177e4 LT |
1322 | default y if ARCH_EBSA110 |
1323 | help | |
1324 | If you say Y here, one of the system LEDs (the green one on the | |
1325 | NetWinder, the amber one on the EBSA285, or the red one on the LART) | |
1326 | will flash regularly to indicate that the system is still | |
1327 | operational. This is mainly useful to kernel hackers who are | |
1328 | debugging unstable kernels. | |
1329 | ||
1330 | The LART uses the same LED for both Timer LED and CPU usage LED | |
1331 | functions. You may choose to use both, but the Timer LED function | |
1332 | will overrule the CPU usage LED. | |
1333 | ||
1334 | config LEDS_CPU | |
1335 | bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \ | |
eebdf7d7 DB |
1336 | !ARCH_OMAP) \ |
1337 | || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \ | |
1338 | || MACH_OMAP_PERSEUS2 | |
1da177e4 LT |
1339 | depends on LEDS |
1340 | help | |
1341 | If you say Y here, the red LED will be used to give a good real | |
1342 | time indication of CPU usage, by lighting whenever the idle task | |
1343 | is not currently executing. | |
1344 | ||
1345 | The LART uses the same LED for both Timer LED and CPU usage LED | |
1346 | functions. You may choose to use both, but the Timer LED function | |
1347 | will overrule the CPU usage LED. | |
1348 | ||
1349 | config ALIGNMENT_TRAP | |
1350 | bool | |
f12d0d7c | 1351 | depends on CPU_CP15_MMU |
1da177e4 | 1352 | default y if !ARCH_EBSA110 |
e119bfff | 1353 | select HAVE_PROC_CPU if PROC_FS |
1da177e4 | 1354 | help |
84eb8d06 | 1355 | ARM processors cannot fetch/store information which is not |
1da177e4 LT |
1356 | naturally aligned on the bus, i.e., a 4 byte fetch must start at an |
1357 | address divisible by 4. On 32-bit ARM processors, these non-aligned | |
1358 | fetch/store instructions will be emulated in software if you say | |
1359 | here, which has a severe performance impact. This is necessary for | |
1360 | correct operation of some network protocols. With an IP-only | |
1361 | configuration it is safe to say N, otherwise say Y. | |
1362 | ||
39ec58f3 LB |
1363 | config UACCESS_WITH_MEMCPY |
1364 | bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)" | |
1365 | depends on MMU && EXPERIMENTAL | |
1366 | default y if CPU_FEROCEON | |
1367 | help | |
1368 | Implement faster copy_to_user and clear_user methods for CPU | |
1369 | cores where a 8-word STM instruction give significantly higher | |
1370 | memory write throughput than a sequence of individual 32bit stores. | |
1371 | ||
1372 | A possible side effect is a slight increase in scheduling latency | |
1373 | between threads sharing the same address space if they invoke | |
1374 | such copy operations with large buffers. | |
1375 | ||
1376 | However, if the CPU data cache is using a write-allocate mode, | |
1377 | this option is unlikely to provide any performance gain. | |
1378 | ||
1da177e4 LT |
1379 | endmenu |
1380 | ||
1381 | menu "Boot options" | |
1382 | ||
1383 | # Compressed boot loader in ROM. Yes, we really want to ask about | |
1384 | # TEXT and BSS so we preserve their values in the config files. | |
1385 | config ZBOOT_ROM_TEXT | |
1386 | hex "Compressed ROM boot loader base address" | |
1387 | default "0" | |
1388 | help | |
1389 | The physical address at which the ROM-able zImage is to be | |
1390 | placed in the target. Platforms which normally make use of | |
1391 | ROM-able zImage formats normally set this to a suitable | |
1392 | value in their defconfig file. | |
1393 | ||
1394 | If ZBOOT_ROM is not enabled, this has no effect. | |
1395 | ||
1396 | config ZBOOT_ROM_BSS | |
1397 | hex "Compressed ROM boot loader BSS address" | |
1398 | default "0" | |
1399 | help | |
f8c440b2 DF |
1400 | The base address of an area of read/write memory in the target |
1401 | for the ROM-able zImage which must be available while the | |
1402 | decompressor is running. It must be large enough to hold the | |
1403 | entire decompressed kernel plus an additional 128 KiB. | |
1404 | Platforms which normally make use of ROM-able zImage formats | |
1405 | normally set this to a suitable value in their defconfig file. | |
1da177e4 LT |
1406 | |
1407 | If ZBOOT_ROM is not enabled, this has no effect. | |
1408 | ||
1409 | config ZBOOT_ROM | |
1410 | bool "Compressed boot loader in ROM/flash" | |
1411 | depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS | |
1412 | help | |
1413 | Say Y here if you intend to execute your compressed kernel image | |
1414 | (zImage) directly from ROM or flash. If unsure, say N. | |
1415 | ||
1416 | config CMDLINE | |
1417 | string "Default kernel command string" | |
1418 | default "" | |
1419 | help | |
1420 | On some architectures (EBSA110 and CATS), there is currently no way | |
1421 | for the boot loader to pass arguments to the kernel. For these | |
1422 | architectures, you should supply some command-line options at build | |
1423 | time by entering them here. As a minimum, you should specify the | |
1424 | memory size and the root device (e.g., mem=64M root=/dev/nfs). | |
1425 | ||
1426 | config XIP_KERNEL | |
1427 | bool "Kernel Execute-In-Place from ROM" | |
1428 | depends on !ZBOOT_ROM | |
1429 | help | |
1430 | Execute-In-Place allows the kernel to run from non-volatile storage | |
1431 | directly addressable by the CPU, such as NOR flash. This saves RAM | |
1432 | space since the text section of the kernel is not loaded from flash | |
1433 | to RAM. Read-write sections, such as the data section and stack, | |
1434 | are still copied to RAM. The XIP kernel is not compressed since | |
1435 | it has to run directly from flash, so it will take more space to | |
1436 | store it. The flash address used to link the kernel object files, | |
1437 | and for storing it, is configuration dependent. Therefore, if you | |
1438 | say Y here, you must know the proper physical address where to | |
1439 | store the kernel image depending on your own flash memory usage. | |
1440 | ||
1441 | Also note that the make target becomes "make xipImage" rather than | |
1442 | "make zImage" or "make Image". The final kernel binary to put in | |
1443 | ROM memory will be arch/arm/boot/xipImage. | |
1444 | ||
1445 | If unsure, say N. | |
1446 | ||
1447 | config XIP_PHYS_ADDR | |
1448 | hex "XIP Kernel Physical Location" | |
1449 | depends on XIP_KERNEL | |
1450 | default "0x00080000" | |
1451 | help | |
1452 | This is the physical address in your flash memory the kernel will | |
1453 | be linked for and stored to. This address is dependent on your | |
1454 | own flash usage. | |
1455 | ||
c587e4a6 RP |
1456 | config KEXEC |
1457 | bool "Kexec system call (EXPERIMENTAL)" | |
1458 | depends on EXPERIMENTAL | |
1459 | help | |
1460 | kexec is a system call that implements the ability to shutdown your | |
1461 | current kernel, and to start another kernel. It is like a reboot | |
01dd2fbf | 1462 | but it is independent of the system firmware. And like a reboot |
c587e4a6 RP |
1463 | you can start any kernel with it, not just Linux. |
1464 | ||
1465 | It is an ongoing process to be certain the hardware in a machine | |
1466 | is properly shutdown, so do not be surprised if this code does not | |
1467 | initially work for you. It may help to enable device hotplugging | |
1468 | support. | |
1469 | ||
4cd9d6f7 RP |
1470 | config ATAGS_PROC |
1471 | bool "Export atags in procfs" | |
b98d7291 UL |
1472 | depends on KEXEC |
1473 | default y | |
4cd9d6f7 RP |
1474 | help |
1475 | Should the atags used to boot the kernel be exported in an "atags" | |
1476 | file in procfs. Useful with kexec. | |
1477 | ||
1da177e4 LT |
1478 | endmenu |
1479 | ||
ac9d7efc | 1480 | menu "CPU Power Management" |
1da177e4 | 1481 | |
89c52ed4 | 1482 | if ARCH_HAS_CPUFREQ |
1da177e4 LT |
1483 | |
1484 | source "drivers/cpufreq/Kconfig" | |
1485 | ||
1486 | config CPU_FREQ_SA1100 | |
1487 | bool | |
1da177e4 LT |
1488 | |
1489 | config CPU_FREQ_SA1110 | |
1490 | bool | |
1da177e4 LT |
1491 | |
1492 | config CPU_FREQ_INTEGRATOR | |
1493 | tristate "CPUfreq driver for ARM Integrator CPUs" | |
1494 | depends on ARCH_INTEGRATOR && CPU_FREQ | |
1495 | default y | |
1496 | help | |
1497 | This enables the CPUfreq driver for ARM Integrator CPUs. | |
1498 | ||
1499 | For details, take a look at <file:Documentation/cpu-freq>. | |
1500 | ||
1501 | If in doubt, say Y. | |
1502 | ||
9e2697ff RK |
1503 | config CPU_FREQ_PXA |
1504 | bool | |
1505 | depends on CPU_FREQ && ARCH_PXA && PXA25x | |
1506 | default y | |
1507 | select CPU_FREQ_DEFAULT_GOV_USERSPACE | |
1508 | ||
b3748ddd MB |
1509 | config CPU_FREQ_S3C64XX |
1510 | bool "CPUfreq support for Samsung S3C64XX CPUs" | |
1511 | depends on CPU_FREQ && CPU_S3C6410 | |
1512 | ||
9d56c02a BD |
1513 | config CPU_FREQ_S3C |
1514 | bool | |
1515 | help | |
1516 | Internal configuration node for common cpufreq on Samsung SoC | |
1517 | ||
1518 | config CPU_FREQ_S3C24XX | |
1519 | bool "CPUfreq driver for Samsung S3C24XX series CPUs" | |
1520 | depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL | |
1521 | select CPU_FREQ_S3C | |
1522 | help | |
1523 | This enables the CPUfreq driver for the Samsung S3C24XX family | |
1524 | of CPUs. | |
1525 | ||
1526 | For details, take a look at <file:Documentation/cpu-freq>. | |
1527 | ||
1528 | If in doubt, say N. | |
1529 | ||
1530 | config CPU_FREQ_S3C24XX_PLL | |
1531 | bool "Support CPUfreq changing of PLL frequency" | |
1532 | depends on CPU_FREQ_S3C24XX && EXPERIMENTAL | |
1533 | help | |
1534 | Compile in support for changing the PLL frequency from the | |
1535 | S3C24XX series CPUfreq driver. The PLL takes time to settle | |
1536 | after a frequency change, so by default it is not enabled. | |
1537 | ||
1538 | This also means that the PLL tables for the selected CPU(s) will | |
1539 | be built which may increase the size of the kernel image. | |
1540 | ||
1541 | config CPU_FREQ_S3C24XX_DEBUG | |
1542 | bool "Debug CPUfreq Samsung driver core" | |
1543 | depends on CPU_FREQ_S3C24XX | |
1544 | help | |
1545 | Enable s3c_freq_dbg for the Samsung S3C CPUfreq core | |
1546 | ||
1547 | config CPU_FREQ_S3C24XX_IODEBUG | |
1548 | bool "Debug CPUfreq Samsung driver IO timing" | |
1549 | depends on CPU_FREQ_S3C24XX | |
1550 | help | |
1551 | Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core | |
1552 | ||
e6d197a6 BD |
1553 | config CPU_FREQ_S3C24XX_DEBUGFS |
1554 | bool "Export debugfs for CPUFreq" | |
1555 | depends on CPU_FREQ_S3C24XX && DEBUG_FS | |
1556 | help | |
1557 | Export status information via debugfs. | |
1558 | ||
1da177e4 LT |
1559 | endif |
1560 | ||
ac9d7efc RK |
1561 | source "drivers/cpuidle/Kconfig" |
1562 | ||
1563 | endmenu | |
1564 | ||
1da177e4 LT |
1565 | menu "Floating point emulation" |
1566 | ||
1567 | comment "At least one emulation must be selected" | |
1568 | ||
1569 | config FPE_NWFPE | |
1570 | bool "NWFPE math emulation" | |
8993a44c | 1571 | depends on !AEABI || OABI_COMPAT |
1da177e4 LT |
1572 | ---help--- |
1573 | Say Y to include the NWFPE floating point emulator in the kernel. | |
1574 | This is necessary to run most binaries. Linux does not currently | |
1575 | support floating point hardware so you need to say Y here even if | |
1576 | your machine has an FPA or floating point co-processor podule. | |
1577 | ||
1578 | You may say N here if you are going to load the Acorn FPEmulator | |
1579 | early in the bootup. | |
1580 | ||
1581 | config FPE_NWFPE_XP | |
1582 | bool "Support extended precision" | |
bedf142b | 1583 | depends on FPE_NWFPE |
1da177e4 LT |
1584 | help |
1585 | Say Y to include 80-bit support in the kernel floating-point | |
1586 | emulator. Otherwise, only 32 and 64-bit support is compiled in. | |
1587 | Note that gcc does not generate 80-bit operations by default, | |
1588 | so in most cases this option only enlarges the size of the | |
1589 | floating point emulator without any good reason. | |
1590 | ||
1591 | You almost surely want to say N here. | |
1592 | ||
1593 | config FPE_FASTFPE | |
1594 | bool "FastFPE math emulation (EXPERIMENTAL)" | |
8993a44c | 1595 | depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL |
1da177e4 LT |
1596 | ---help--- |
1597 | Say Y here to include the FAST floating point emulator in the kernel. | |
1598 | This is an experimental much faster emulator which now also has full | |
1599 | precision for the mantissa. It does not support any exceptions. | |
1600 | It is very simple, and approximately 3-6 times faster than NWFPE. | |
1601 | ||
1602 | It should be sufficient for most programs. It may be not suitable | |
1603 | for scientific calculations, but you have to check this for yourself. | |
1604 | If you do not feel you need a faster FP emulation you should better | |
1605 | choose NWFPE. | |
1606 | ||
1607 | config VFP | |
1608 | bool "VFP-format floating point maths" | |
c00d4ffd | 1609 | depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON |
1da177e4 LT |
1610 | help |
1611 | Say Y to include VFP support code in the kernel. This is needed | |
1612 | if your hardware includes a VFP unit. | |
1613 | ||
1614 | Please see <file:Documentation/arm/VFP/release-notes.txt> for | |
1615 | release notes and additional status information. | |
1616 | ||
1617 | Say N if your target does not have VFP hardware. | |
1618 | ||
25ebee02 CM |
1619 | config VFPv3 |
1620 | bool | |
1621 | depends on VFP | |
1622 | default y if CPU_V7 | |
1623 | ||
b5872db4 CM |
1624 | config NEON |
1625 | bool "Advanced SIMD (NEON) Extension support" | |
1626 | depends on VFPv3 && CPU_V7 | |
1627 | help | |
1628 | Say Y to include support code for NEON, the ARMv7 Advanced SIMD | |
1629 | Extension. | |
1630 | ||
1da177e4 LT |
1631 | endmenu |
1632 | ||
1633 | menu "Userspace binary formats" | |
1634 | ||
1635 | source "fs/Kconfig.binfmt" | |
1636 | ||
1637 | config ARTHUR | |
1638 | tristate "RISC OS personality" | |
704bdda0 | 1639 | depends on !AEABI |
1da177e4 LT |
1640 | help |
1641 | Say Y here to include the kernel code necessary if you want to run | |
1642 | Acorn RISC OS/Arthur binaries under Linux. This code is still very | |
1643 | experimental; if this sounds frightening, say N and sleep in peace. | |
1644 | You can also say M here to compile this support as a module (which | |
1645 | will be called arthur). | |
1646 | ||
1647 | endmenu | |
1648 | ||
1649 | menu "Power management options" | |
1650 | ||
eceab4ac | 1651 | source "kernel/power/Kconfig" |
1da177e4 | 1652 | |
f4cb5700 JB |
1653 | config ARCH_SUSPEND_POSSIBLE |
1654 | def_bool y | |
1655 | ||
1da177e4 LT |
1656 | endmenu |
1657 | ||
d5950b43 SR |
1658 | source "net/Kconfig" |
1659 | ||
ac25150f | 1660 | source "drivers/Kconfig" |
1da177e4 LT |
1661 | |
1662 | source "fs/Kconfig" | |
1663 | ||
1da177e4 LT |
1664 | source "arch/arm/Kconfig.debug" |
1665 | ||
1666 | source "security/Kconfig" | |
1667 | ||
1668 | source "crypto/Kconfig" | |
1669 | ||
1670 | source "lib/Kconfig" |