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 | |
746140c7 | 45 | |
0567a0c0 KH |
46 | config GENERIC_CLOCKEVENTS |
47 | bool | |
0567a0c0 | 48 | |
a8655e83 CM |
49 | config GENERIC_CLOCKEVENTS_BROADCAST |
50 | bool | |
51 | depends on GENERIC_CLOCKEVENTS | |
52 | default y if SMP && !LOCAL_TIMERS | |
53 | ||
bc581770 LW |
54 | config HAVE_TCM |
55 | bool | |
56 | select GENERIC_ALLOCATOR | |
57 | ||
e119bfff RK |
58 | config HAVE_PROC_CPU |
59 | bool | |
60 | ||
5ea81769 AV |
61 | config NO_IOPORT |
62 | bool | |
5ea81769 | 63 | |
1da177e4 LT |
64 | config EISA |
65 | bool | |
66 | ---help--- | |
67 | The Extended Industry Standard Architecture (EISA) bus was | |
68 | developed as an open alternative to the IBM MicroChannel bus. | |
69 | ||
70 | The EISA bus provided some of the features of the IBM MicroChannel | |
71 | bus while maintaining backward compatibility with cards made for | |
72 | the older ISA bus. The EISA bus saw limited use between 1988 and | |
73 | 1995 when it was made obsolete by the PCI bus. | |
74 | ||
75 | Say Y here if you are building a kernel for an EISA-based machine. | |
76 | ||
77 | Otherwise, say N. | |
78 | ||
79 | config SBUS | |
80 | bool | |
81 | ||
82 | config MCA | |
83 | bool | |
84 | help | |
85 | MicroChannel Architecture is found in some IBM PS/2 machines and | |
86 | laptops. It is a bus system similar to PCI or ISA. See | |
87 | <file:Documentation/mca.txt> (and especially the web page given | |
88 | there) before attempting to build an MCA bus kernel. | |
89 | ||
4a2581a0 TG |
90 | config GENERIC_HARDIRQS |
91 | bool | |
92 | default y | |
93 | ||
f16fb1ec RK |
94 | config STACKTRACE_SUPPORT |
95 | bool | |
96 | default y | |
97 | ||
f76e9154 NP |
98 | config HAVE_LATENCYTOP_SUPPORT |
99 | bool | |
100 | depends on !SMP | |
101 | default y | |
102 | ||
f16fb1ec RK |
103 | config LOCKDEP_SUPPORT |
104 | bool | |
105 | default y | |
106 | ||
7ad1bcb2 RK |
107 | config TRACE_IRQFLAGS_SUPPORT |
108 | bool | |
109 | default y | |
110 | ||
4a2581a0 TG |
111 | config HARDIRQS_SW_RESEND |
112 | bool | |
113 | default y | |
114 | ||
115 | config GENERIC_IRQ_PROBE | |
116 | bool | |
117 | default y | |
118 | ||
95c354fe NP |
119 | config GENERIC_LOCKBREAK |
120 | bool | |
121 | default y | |
122 | depends on SMP && PREEMPT | |
123 | ||
1da177e4 LT |
124 | config RWSEM_GENERIC_SPINLOCK |
125 | bool | |
126 | default y | |
127 | ||
128 | config RWSEM_XCHGADD_ALGORITHM | |
129 | bool | |
130 | ||
f0d1b0b3 DH |
131 | config ARCH_HAS_ILOG2_U32 |
132 | bool | |
f0d1b0b3 DH |
133 | |
134 | config ARCH_HAS_ILOG2_U64 | |
135 | bool | |
f0d1b0b3 | 136 | |
89c52ed4 BD |
137 | config ARCH_HAS_CPUFREQ |
138 | bool | |
139 | help | |
140 | Internal node to signify that the ARCH has CPUFREQ support | |
141 | and that the relevant menu configurations are displayed for | |
142 | it. | |
143 | ||
b89c3b16 AM |
144 | config GENERIC_HWEIGHT |
145 | bool | |
146 | default y | |
147 | ||
1da177e4 LT |
148 | config GENERIC_CALIBRATE_DELAY |
149 | bool | |
150 | default y | |
151 | ||
a08b6b79 Z |
152 | config ARCH_MAY_HAVE_PC_FDC |
153 | bool | |
154 | ||
5ac6da66 CL |
155 | config ZONE_DMA |
156 | bool | |
5ac6da66 | 157 | |
ccd7ab7f FT |
158 | config NEED_DMA_MAP_STATE |
159 | def_bool y | |
160 | ||
1da177e4 LT |
161 | config GENERIC_ISA_DMA |
162 | bool | |
163 | ||
1da177e4 LT |
164 | config FIQ |
165 | bool | |
166 | ||
034d2f5a AV |
167 | config ARCH_MTD_XIP |
168 | bool | |
169 | ||
60a752ef | 170 | config GENERIC_HARDIRQS_NO__DO_IRQ |
60a752ef PZ |
171 | def_bool y |
172 | ||
d6d502fa KK |
173 | config ARM_L1_CACHE_SHIFT_6 |
174 | bool | |
175 | help | |
176 | Setting ARM L1 cache line size to 64 Bytes. | |
177 | ||
c0ffa3a9 MD |
178 | if OPROFILE |
179 | ||
180 | config OPROFILE_ARMV6 | |
181 | def_bool y | |
182 | depends on CPU_V6 && !SMP | |
183 | select OPROFILE_ARM11_CORE | |
184 | ||
185 | config OPROFILE_MPCORE | |
186 | def_bool y | |
187 | depends on CPU_V6 && SMP | |
188 | select OPROFILE_ARM11_CORE | |
189 | ||
190 | config OPROFILE_ARM11_CORE | |
191 | bool | |
192 | ||
d7ac4e28 JP |
193 | config OPROFILE_ARMV7 |
194 | def_bool y | |
195 | depends on CPU_V7 && !SMP | |
196 | bool | |
197 | ||
c0ffa3a9 MD |
198 | endif |
199 | ||
c760fc19 HC |
200 | config VECTORS_BASE |
201 | hex | |
6afd6fae | 202 | default 0xffff0000 if MMU || CPU_HIGH_VECTOR |
c760fc19 HC |
203 | default DRAM_BASE if REMAP_VECTORS_TO_RAM |
204 | default 0x00000000 | |
205 | help | |
206 | The base address of exception vectors. | |
207 | ||
1da177e4 LT |
208 | source "init/Kconfig" |
209 | ||
dc52ddc0 MH |
210 | source "kernel/Kconfig.freezer" |
211 | ||
1da177e4 LT |
212 | menu "System Type" |
213 | ||
3c427975 HC |
214 | config MMU |
215 | bool "MMU-based Paged Memory Management Support" | |
216 | default y | |
217 | help | |
218 | Select if you want MMU-based virtualised addressing space | |
219 | support by paged memory management. If unsure, say 'Y'. | |
220 | ||
ccf50e23 RK |
221 | # |
222 | # The "ARM system type" choice list is ordered alphabetically by option | |
223 | # text. Please add new entries in the option alphabetic order. | |
224 | # | |
1da177e4 LT |
225 | choice |
226 | prompt "ARM system type" | |
6a0e2430 | 227 | default ARCH_VERSATILE |
1da177e4 | 228 | |
4af6fee1 DS |
229 | config ARCH_AAEC2000 |
230 | bool "Agilent AAEC-2000 based" | |
c750815e | 231 | select CPU_ARM920T |
4af6fee1 | 232 | select ARM_AMBA |
9483a578 | 233 | select HAVE_CLK |
4af6fee1 DS |
234 | help |
235 | This enables support for systems based on the Agilent AAEC-2000 | |
236 | ||
237 | config ARCH_INTEGRATOR | |
238 | bool "ARM Ltd. Integrator family" | |
239 | select ARM_AMBA | |
89c52ed4 | 240 | select ARCH_HAS_CPUFREQ |
9483a578 | 241 | select HAVE_CLK |
d72fbdf0 | 242 | select COMMON_CLKDEV |
4af6fee1 DS |
243 | select ICST525 |
244 | help | |
245 | Support for ARM's Integrator platform. | |
246 | ||
247 | config ARCH_REALVIEW | |
248 | bool "ARM Ltd. RealView family" | |
249 | select ARM_AMBA | |
9483a578 | 250 | select HAVE_CLK |
cf30fb4a | 251 | select COMMON_CLKDEV |
4af6fee1 | 252 | select ICST307 |
85802afe | 253 | select GENERIC_TIME |
ae30ceac | 254 | select GENERIC_CLOCKEVENTS |
eb7fffa3 | 255 | select ARCH_WANT_OPTIONAL_GPIOLIB |
b56ba8aa | 256 | select GPIO_PL061 if GPIOLIB |
4af6fee1 DS |
257 | help |
258 | This enables support for ARM Ltd RealView boards. | |
259 | ||
260 | config ARCH_VERSATILE | |
261 | bool "ARM Ltd. Versatile family" | |
262 | select ARM_AMBA | |
263 | select ARM_VIC | |
9483a578 | 264 | select HAVE_CLK |
71a06da0 | 265 | select COMMON_CLKDEV |
4af6fee1 | 266 | select ICST307 |
b49c87c2 | 267 | select GENERIC_TIME |
89df1272 | 268 | select GENERIC_CLOCKEVENTS |
bbeddc43 | 269 | select ARCH_WANT_OPTIONAL_GPIOLIB |
4af6fee1 DS |
270 | help |
271 | This enables support for ARM Ltd Versatile board. | |
272 | ||
8fc5ffa0 AV |
273 | config ARCH_AT91 |
274 | bool "Atmel AT91" | |
0a938b97 | 275 | select GENERIC_GPIO |
f373e8c0 | 276 | select ARCH_REQUIRE_GPIOLIB |
93686ae8 | 277 | select HAVE_CLK |
4af6fee1 | 278 | help |
2b3b3516 AV |
279 | This enables support for systems based on the Atmel AT91RM9200, |
280 | AT91SAM9 and AT91CAP9 processors. | |
4af6fee1 | 281 | |
ccf50e23 RK |
282 | config ARCH_BCMRING |
283 | bool "Broadcom BCMRING" | |
284 | depends on MMU | |
285 | select CPU_V6 | |
286 | select ARM_AMBA | |
287 | select COMMON_CLKDEV | |
288 | select GENERIC_TIME | |
289 | select GENERIC_CLOCKEVENTS | |
290 | select ARCH_WANT_OPTIONAL_GPIOLIB | |
291 | help | |
292 | Support for Broadcom's BCMRing platform. | |
293 | ||
1da177e4 | 294 | config ARCH_CLPS711X |
4af6fee1 | 295 | bool "Cirrus Logic CLPS711x/EP721x-based" |
c750815e | 296 | select CPU_ARM720T |
f999b8bd MM |
297 | help |
298 | Support for Cirrus Logic 711x/721x based boards. | |
1da177e4 | 299 | |
788c9700 RK |
300 | config ARCH_GEMINI |
301 | bool "Cortina Systems Gemini" | |
302 | select CPU_FA526 | |
303 | select GENERIC_GPIO | |
304 | select ARCH_REQUIRE_GPIOLIB | |
305 | help | |
306 | Support for the Cortina Systems Gemini family SoCs | |
307 | ||
1da177e4 LT |
308 | config ARCH_EBSA110 |
309 | bool "EBSA-110" | |
c750815e | 310 | select CPU_SA110 |
f7e68bbf | 311 | select ISA |
c5eb2a2b | 312 | select NO_IOPORT |
1da177e4 LT |
313 | help |
314 | This is an evaluation board for the StrongARM processor available | |
f6c8965a | 315 | from Digital. It has limited hardware on-board, including an |
1da177e4 LT |
316 | Ethernet interface, two PCMCIA sockets, two serial ports and a |
317 | parallel port. | |
318 | ||
e7736d47 LB |
319 | config ARCH_EP93XX |
320 | bool "EP93xx-based" | |
c750815e | 321 | select CPU_ARM920T |
e7736d47 LB |
322 | select ARM_AMBA |
323 | select ARM_VIC | |
4e9f9fd5 | 324 | select GENERIC_GPIO |
9483a578 | 325 | select HAVE_CLK |
ae696fd5 | 326 | select COMMON_CLKDEV |
7444a72e | 327 | select ARCH_REQUIRE_GPIOLIB |
eb33575c | 328 | select ARCH_HAS_HOLES_MEMORYMODEL |
e7736d47 LB |
329 | help |
330 | This enables support for the Cirrus EP93xx series of CPUs. | |
331 | ||
1da177e4 LT |
332 | config ARCH_FOOTBRIDGE |
333 | bool "FootBridge" | |
c750815e | 334 | select CPU_SA110 |
1da177e4 | 335 | select FOOTBRIDGE |
f999b8bd MM |
336 | help |
337 | Support for systems based on the DC21285 companion chip | |
338 | ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder. | |
1da177e4 | 339 | |
788c9700 RK |
340 | config ARCH_MXC |
341 | bool "Freescale MXC/iMX-based" | |
342 | select GENERIC_TIME | |
343 | select GENERIC_CLOCKEVENTS | |
788c9700 | 344 | select ARCH_REQUIRE_GPIOLIB |
a2ab67fa | 345 | select HAVE_CLK |
03e09cd8 | 346 | select COMMON_CLKDEV |
788c9700 RK |
347 | help |
348 | Support for Freescale MXC/iMX-based family of processors | |
349 | ||
7bd0f2f5 | 350 | config ARCH_STMP3XXX |
351 | bool "Freescale STMP3xxx" | |
352 | select CPU_ARM926T | |
353 | select HAVE_CLK | |
354 | select COMMON_CLKDEV | |
355 | select ARCH_REQUIRE_GPIOLIB | |
356 | select GENERIC_TIME | |
357 | select GENERIC_CLOCKEVENTS | |
358 | select GENERIC_GPIO | |
359 | select USB_ARCH_HAS_EHCI | |
360 | help | |
361 | Support for systems based on the Freescale 3xxx CPUs. | |
362 | ||
4af6fee1 DS |
363 | config ARCH_NETX |
364 | bool "Hilscher NetX based" | |
c750815e | 365 | select CPU_ARM926T |
4af6fee1 | 366 | select ARM_VIC |
2fcfe6b8 | 367 | select GENERIC_CLOCKEVENTS |
21edecd3 | 368 | select GENERIC_TIME |
f999b8bd | 369 | help |
4af6fee1 DS |
370 | This enables support for systems based on the Hilscher NetX Soc |
371 | ||
372 | config ARCH_H720X | |
373 | bool "Hynix HMS720x-based" | |
c750815e | 374 | select CPU_ARM720T |
4af6fee1 DS |
375 | select ISA_DMA_API |
376 | help | |
377 | This enables support for systems based on the Hynix HMS720x | |
378 | ||
3b938be6 RK |
379 | config ARCH_IOP13XX |
380 | bool "IOP13xx-based" | |
381 | depends on MMU | |
c750815e | 382 | select CPU_XSC3 |
3b938be6 RK |
383 | select PLAT_IOP |
384 | select PCI | |
385 | select ARCH_SUPPORTS_MSI | |
8d5796d2 | 386 | select VMSPLIT_1G |
3b938be6 RK |
387 | help |
388 | Support for Intel's IOP13XX (XScale) family of processors. | |
389 | ||
3f7e5815 LB |
390 | config ARCH_IOP32X |
391 | bool "IOP32x-based" | |
a4f7e763 | 392 | depends on MMU |
c750815e | 393 | select CPU_XSCALE |
7ae1f7ec | 394 | select PLAT_IOP |
f7e68bbf | 395 | select PCI |
63f385cd | 396 | select GENERIC_GPIO |
bb2b180c | 397 | select ARCH_REQUIRE_GPIOLIB |
f999b8bd | 398 | help |
3f7e5815 LB |
399 | Support for Intel's 80219 and IOP32X (XScale) family of |
400 | processors. | |
401 | ||
402 | config ARCH_IOP33X | |
403 | bool "IOP33x-based" | |
404 | depends on MMU | |
c750815e | 405 | select CPU_XSCALE |
7ae1f7ec | 406 | select PLAT_IOP |
3f7e5815 | 407 | select PCI |
63f385cd | 408 | select GENERIC_GPIO |
bb2b180c | 409 | select ARCH_REQUIRE_GPIOLIB |
3f7e5815 LB |
410 | help |
411 | Support for Intel's IOP33X (XScale) family of processors. | |
1da177e4 | 412 | |
3b938be6 RK |
413 | config ARCH_IXP23XX |
414 | bool "IXP23XX-based" | |
a4f7e763 | 415 | depends on MMU |
c750815e | 416 | select CPU_XSC3 |
3b938be6 | 417 | select PCI |
f999b8bd | 418 | help |
3b938be6 | 419 | Support for Intel's IXP23xx (XScale) family of processors. |
1da177e4 LT |
420 | |
421 | config ARCH_IXP2000 | |
422 | bool "IXP2400/2800-based" | |
a4f7e763 | 423 | depends on MMU |
c750815e | 424 | select CPU_XSCALE |
f7e68bbf | 425 | select PCI |
f999b8bd MM |
426 | help |
427 | Support for Intel's IXP2400/2800 (XScale) family of processors. | |
1da177e4 | 428 | |
3b938be6 RK |
429 | config ARCH_IXP4XX |
430 | bool "IXP4xx-based" | |
a4f7e763 | 431 | depends on MMU |
c750815e | 432 | select CPU_XSCALE |
8858e9af | 433 | select GENERIC_GPIO |
3b938be6 RK |
434 | select GENERIC_TIME |
435 | select GENERIC_CLOCKEVENTS | |
485bdde7 | 436 | select DMABOUNCE if PCI |
c4713074 | 437 | help |
3b938be6 | 438 | Support for Intel's IXP4XX (XScale) family of processors. |
c4713074 | 439 | |
1da177e4 LT |
440 | config ARCH_L7200 |
441 | bool "LinkUp-L7200" | |
c750815e | 442 | select CPU_ARM720T |
1da177e4 LT |
443 | select FIQ |
444 | help | |
445 | Say Y here if you intend to run this kernel on a LinkUp Systems | |
446 | L7200 Software Development Board which uses an ARM720T processor. | |
447 | Information on this board can be obtained at: | |
448 | ||
449 | <http://www.linkupsys.com/> | |
450 | ||
451 | If you have any questions or comments about the Linux kernel port | |
452 | to this board, send e-mail to <sjhill@cotw.com>. | |
453 | ||
edabd38e SB |
454 | config ARCH_DOVE |
455 | bool "Marvell Dove" | |
456 | select PCI | |
457 | select GENERIC_GPIO | |
458 | select ARCH_REQUIRE_GPIOLIB | |
459 | select GENERIC_TIME | |
460 | select GENERIC_CLOCKEVENTS | |
461 | select PLAT_ORION | |
462 | help | |
463 | Support for the Marvell Dove SoC 88AP510 | |
464 | ||
651c74c7 SB |
465 | config ARCH_KIRKWOOD |
466 | bool "Marvell Kirkwood" | |
c750815e | 467 | select CPU_FEROCEON |
651c74c7 | 468 | select PCI |
4c213430 | 469 | select GENERIC_GPIO |
a8865655 | 470 | select ARCH_REQUIRE_GPIOLIB |
651c74c7 SB |
471 | select GENERIC_TIME |
472 | select GENERIC_CLOCKEVENTS | |
473 | select PLAT_ORION | |
474 | help | |
475 | Support for the following Marvell Kirkwood series SoCs: | |
476 | 88F6180, 88F6192 and 88F6281. | |
477 | ||
777f9beb LB |
478 | config ARCH_LOKI |
479 | bool "Marvell Loki (88RC8480)" | |
c750815e | 480 | select CPU_FEROCEON |
777f9beb LB |
481 | select GENERIC_TIME |
482 | select GENERIC_CLOCKEVENTS | |
483 | select PLAT_ORION | |
484 | help | |
485 | Support for the Marvell Loki (88RC8480) SoC. | |
486 | ||
794d15b2 SS |
487 | config ARCH_MV78XX0 |
488 | bool "Marvell MV78xx0" | |
c750815e | 489 | select CPU_FEROCEON |
794d15b2 | 490 | select PCI |
b95a13d7 | 491 | select GENERIC_GPIO |
a8865655 | 492 | select ARCH_REQUIRE_GPIOLIB |
794d15b2 SS |
493 | select GENERIC_TIME |
494 | select GENERIC_CLOCKEVENTS | |
495 | select PLAT_ORION | |
496 | help | |
497 | Support for the following Marvell MV78xx0 series SoCs: | |
498 | MV781x0, MV782x0. | |
499 | ||
9dd0b194 | 500 | config ARCH_ORION5X |
585cf175 TP |
501 | bool "Marvell Orion" |
502 | depends on MMU | |
c750815e | 503 | select CPU_FEROCEON |
038ee083 | 504 | select PCI |
01af72e4 | 505 | select GENERIC_GPIO |
a8865655 | 506 | select ARCH_REQUIRE_GPIOLIB |
51cbff1d TP |
507 | select GENERIC_TIME |
508 | select GENERIC_CLOCKEVENTS | |
69b02f6a | 509 | select PLAT_ORION |
585cf175 | 510 | help |
9dd0b194 | 511 | Support for the following Marvell Orion 5x series SoCs: |
d2b2a6bb | 512 | Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182), |
d323ade1 | 513 | Orion-2 (5281), Orion-1-90 (6183). |
585cf175 | 514 | |
788c9700 | 515 | config ARCH_MMP |
2f7e8fae | 516 | bool "Marvell PXA168/910/MMP2" |
788c9700 RK |
517 | depends on MMU |
518 | select GENERIC_GPIO | |
519 | select ARCH_REQUIRE_GPIOLIB | |
520 | select HAVE_CLK | |
521 | select COMMON_CLKDEV | |
522 | select GENERIC_TIME | |
523 | select GENERIC_CLOCKEVENTS | |
524 | select TICK_ONESHOT | |
525 | select PLAT_PXA | |
526 | help | |
2f7e8fae | 527 | Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line. |
788c9700 RK |
528 | |
529 | config ARCH_KS8695 | |
530 | bool "Micrel/Kendin KS8695" | |
531 | select CPU_ARM922T | |
532 | select GENERIC_GPIO | |
533 | select ARCH_REQUIRE_GPIOLIB | |
534 | help | |
535 | Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based | |
536 | System-on-Chip devices. | |
537 | ||
538 | config ARCH_NS9XXX | |
539 | bool "NetSilicon NS9xxx" | |
540 | select CPU_ARM926T | |
541 | select GENERIC_GPIO | |
542 | select GENERIC_TIME | |
543 | select GENERIC_CLOCKEVENTS | |
544 | select HAVE_CLK | |
545 | help | |
546 | Say Y here if you intend to run this kernel on a NetSilicon NS9xxx | |
547 | System. | |
548 | ||
549 | <http://www.digi.com/products/microprocessors/index.jsp> | |
550 | ||
551 | config ARCH_W90X900 | |
552 | bool "Nuvoton W90X900 CPU" | |
553 | select CPU_ARM926T | |
c52d3d68 | 554 | select ARCH_REQUIRE_GPIOLIB |
555 | select GENERIC_GPIO | |
d2c24195 | 556 | select HAVE_CLK |
0e4a34bb | 557 | select COMMON_CLKDEV |
58b5369e | 558 | select GENERIC_TIME |
559 | select GENERIC_CLOCKEVENTS | |
788c9700 | 560 | help |
a8bc4ead | 561 | Support for Nuvoton (Winbond logic dept.) ARM9 processor, |
562 | At present, the w90x900 has been renamed nuc900, regarding | |
563 | the ARM series product line, you can login the following | |
564 | link address to know more. | |
565 | ||
566 | <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/ | |
567 | ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller> | |
788c9700 | 568 | |
a62e9030 | 569 | config ARCH_NUC93X |
570 | bool "Nuvoton NUC93X CPU" | |
571 | select CPU_ARM926T | |
572 | select HAVE_CLK | |
573 | select COMMON_CLKDEV | |
574 | help | |
575 | Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a | |
576 | low-power and high performance MPEG-4/JPEG multimedia controller chip. | |
577 | ||
4af6fee1 DS |
578 | config ARCH_PNX4008 |
579 | bool "Philips Nexperia PNX4008 Mobile" | |
c750815e | 580 | select CPU_ARM926T |
9483a578 | 581 | select HAVE_CLK |
6985a5ad | 582 | select COMMON_CLKDEV |
4af6fee1 DS |
583 | help |
584 | This enables support for Philips PNX4008 mobile platform. | |
585 | ||
1da177e4 | 586 | config ARCH_PXA |
2c8086a5 | 587 | bool "PXA2xx/PXA3xx-based" |
a4f7e763 | 588 | depends on MMU |
034d2f5a | 589 | select ARCH_MTD_XIP |
89c52ed4 | 590 | select ARCH_HAS_CPUFREQ |
0a938b97 | 591 | select GENERIC_GPIO |
9483a578 | 592 | select HAVE_CLK |
8c3abc7d | 593 | select COMMON_CLKDEV |
7444a72e | 594 | select ARCH_REQUIRE_GPIOLIB |
45cf5eef | 595 | select GENERIC_TIME |
981d0f39 | 596 | select GENERIC_CLOCKEVENTS |
a88264c2 | 597 | select TICK_ONESHOT |
bd5ce433 | 598 | select PLAT_PXA |
f999b8bd | 599 | help |
2c8086a5 | 600 | Support for Intel/Marvell's PXA2xx/PXA3xx processor line. |
1da177e4 | 601 | |
788c9700 RK |
602 | config ARCH_MSM |
603 | bool "Qualcomm MSM" | |
604 | select CPU_V6 | |
49cbe786 EM |
605 | select GENERIC_TIME |
606 | select GENERIC_CLOCKEVENTS | |
49cbe786 | 607 | help |
788c9700 RK |
608 | Support for Qualcomm MSM7K based systems. This runs on the ARM11 |
609 | apps processor of the MSM7K and depends on a shared memory | |
610 | interface to the ARM9 modem processor which runs the baseband stack | |
611 | and controls some vital subsystems (clock and power control, etc). | |
49cbe786 | 612 | |
c793c1b0 MD |
613 | config ARCH_SHMOBILE |
614 | bool "Renesas SH-Mobile" | |
615 | help | |
616 | Support for Renesas's SH-Mobile ARM platforms | |
617 | ||
1da177e4 LT |
618 | config ARCH_RPC |
619 | bool "RiscPC" | |
620 | select ARCH_ACORN | |
621 | select FIQ | |
622 | select TIMER_ACORN | |
a08b6b79 | 623 | select ARCH_MAY_HAVE_PC_FDC |
341eb781 | 624 | select HAVE_PATA_PLATFORM |
065909b9 | 625 | select ISA_DMA_API |
5ea81769 | 626 | select NO_IOPORT |
07f841b7 | 627 | select ARCH_SPARSEMEM_ENABLE |
1da177e4 LT |
628 | help |
629 | On the Acorn Risc-PC, Linux can support the internal IDE disk and | |
630 | CD-ROM interface, serial and parallel port, and the floppy drive. | |
631 | ||
632 | config ARCH_SA1100 | |
633 | bool "SA1100-based" | |
c750815e | 634 | select CPU_SA1100 |
f7e68bbf | 635 | select ISA |
05944d74 | 636 | select ARCH_SPARSEMEM_ENABLE |
034d2f5a | 637 | select ARCH_MTD_XIP |
89c52ed4 | 638 | select ARCH_HAS_CPUFREQ |
1937f5b9 | 639 | select CPU_FREQ |
0a938b97 | 640 | select GENERIC_GPIO |
d142b6e7 | 641 | select GENERIC_TIME |
3e238be2 | 642 | select GENERIC_CLOCKEVENTS |
9483a578 | 643 | select HAVE_CLK |
3e238be2 | 644 | select TICK_ONESHOT |
7444a72e | 645 | select ARCH_REQUIRE_GPIOLIB |
f999b8bd MM |
646 | help |
647 | Support for StrongARM 11x0 based boards. | |
1da177e4 LT |
648 | |
649 | config ARCH_S3C2410 | |
63b1f51b | 650 | bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450" |
0a938b97 | 651 | select GENERIC_GPIO |
9d56c02a | 652 | select ARCH_HAS_CPUFREQ |
9483a578 | 653 | select HAVE_CLK |
1da177e4 LT |
654 | help |
655 | Samsung S3C2410X CPU based systems, such as the Simtec Electronics | |
656 | BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or | |
f6c8965a | 657 | the Samsung SMDK2410 development board (and derivatives). |
1da177e4 | 658 | |
63b1f51b BD |
659 | Note, the S3C2416 and the S3C2450 are so close that they even share |
660 | the same SoC ID code. This means that there is no seperate machine | |
661 | directory (no arch/arm/mach-s3c2450) as the S3C2416 was first. | |
662 | ||
a08ab637 BD |
663 | config ARCH_S3C64XX |
664 | bool "Samsung S3C64XX" | |
89f1fa08 | 665 | select PLAT_SAMSUNG |
89f0ce72 | 666 | select CPU_V6 |
a08ab637 | 667 | select GENERIC_GPIO |
89f0ce72 | 668 | select ARM_VIC |
a08ab637 | 669 | select HAVE_CLK |
89f0ce72 | 670 | select NO_IOPORT |
89c52ed4 | 671 | select ARCH_HAS_CPUFREQ |
89f0ce72 BD |
672 | select ARCH_REQUIRE_GPIOLIB |
673 | select SAMSUNG_CLKSRC | |
674 | select SAMSUNG_IRQ_VIC_TIMER | |
675 | select SAMSUNG_IRQ_UART | |
676 | select S3C_GPIO_TRACK | |
677 | select S3C_GPIO_PULL_UPDOWN | |
678 | select S3C_GPIO_CFG_S3C24XX | |
679 | select S3C_GPIO_CFG_S3C64XX | |
680 | select S3C_DEV_NAND | |
681 | select USB_ARCH_HAS_OHCI | |
682 | select SAMSUNG_GPIOLIB_4BIT | |
a08ab637 BD |
683 | help |
684 | Samsung S3C64XX series based systems | |
685 | ||
c4ffccdd KK |
686 | config ARCH_S5P6440 |
687 | bool "Samsung S5P6440" | |
688 | select CPU_V6 | |
689 | select GENERIC_GPIO | |
690 | select HAVE_CLK | |
691 | help | |
692 | Samsung S5P6440 CPU based systems | |
693 | ||
550db7f1 KK |
694 | config ARCH_S5P6442 |
695 | bool "Samsung S5P6442" | |
696 | select CPU_V6 | |
697 | select GENERIC_GPIO | |
698 | select HAVE_CLK | |
699 | help | |
700 | Samsung S5P6442 CPU based systems | |
701 | ||
5a7652f2 BM |
702 | config ARCH_S5PC1XX |
703 | bool "Samsung S5PC1XX" | |
704 | select GENERIC_GPIO | |
705 | select HAVE_CLK | |
706 | select CPU_V7 | |
d6d502fa | 707 | select ARM_L1_CACHE_SHIFT_6 |
5a7652f2 BM |
708 | help |
709 | Samsung S5PC1XX series based systems | |
710 | ||
170f4e42 KK |
711 | config ARCH_S5PV210 |
712 | bool "Samsung S5PV210/S5PC110" | |
713 | select CPU_V7 | |
714 | select GENERIC_GPIO | |
715 | select HAVE_CLK | |
716 | select ARM_L1_CACHE_SHIFT_6 | |
717 | help | |
718 | Samsung S5PV210/S5PC110 series based systems | |
719 | ||
1da177e4 LT |
720 | config ARCH_SHARK |
721 | bool "Shark" | |
c750815e | 722 | select CPU_SA110 |
f7e68bbf RK |
723 | select ISA |
724 | select ISA_DMA | |
3bca103a | 725 | select ZONE_DMA |
f7e68bbf | 726 | select PCI |
f999b8bd MM |
727 | help |
728 | Support for the StrongARM based Digital DNARD machine, also known | |
729 | as "Shark" (<http://www.shark-linux.de/shark.html>). | |
1da177e4 LT |
730 | |
731 | config ARCH_LH7A40X | |
732 | bool "Sharp LH7A40X" | |
c750815e | 733 | select CPU_ARM922T |
4ba3f7c5 RK |
734 | select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM |
735 | select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM | |
1da177e4 LT |
736 | help |
737 | Say Y here for systems based on one of the Sharp LH7A40X | |
738 | System on a Chip processors. These CPUs include an ARM922T | |
739 | core with a wide array of integrated devices for | |
740 | hand-held and low-power applications. | |
741 | ||
d98aac75 LW |
742 | config ARCH_U300 |
743 | bool "ST-Ericsson U300 Series" | |
744 | depends on MMU | |
745 | select CPU_ARM926T | |
bc581770 | 746 | select HAVE_TCM |
d98aac75 LW |
747 | select ARM_AMBA |
748 | select ARM_VIC | |
749 | select GENERIC_TIME | |
750 | select GENERIC_CLOCKEVENTS | |
751 | select HAVE_CLK | |
752 | select COMMON_CLKDEV | |
753 | select GENERIC_GPIO | |
754 | help | |
755 | Support for ST-Ericsson U300 series mobile platforms. | |
756 | ||
ccf50e23 RK |
757 | config ARCH_U8500 |
758 | bool "ST-Ericsson U8500 Series" | |
759 | select CPU_V7 | |
760 | select ARM_AMBA | |
761 | select GENERIC_TIME | |
762 | select GENERIC_CLOCKEVENTS | |
763 | select COMMON_CLKDEV | |
764 | help | |
765 | Support for ST-Ericsson's Ux500 architecture | |
766 | ||
767 | config ARCH_NOMADIK | |
768 | bool "STMicroelectronics Nomadik" | |
769 | select ARM_AMBA | |
770 | select ARM_VIC | |
771 | select CPU_ARM926T | |
772 | select HAVE_CLK | |
773 | select COMMON_CLKDEV | |
774 | select GENERIC_TIME | |
775 | select GENERIC_CLOCKEVENTS | |
776 | select GENERIC_GPIO | |
777 | select ARCH_REQUIRE_GPIOLIB | |
778 | help | |
779 | Support for the Nomadik platform by ST-Ericsson | |
780 | ||
7c6337e2 KH |
781 | config ARCH_DAVINCI |
782 | bool "TI DaVinci" | |
c750815e | 783 | select CPU_ARM926T |
7c6337e2 KH |
784 | select GENERIC_TIME |
785 | select GENERIC_CLOCKEVENTS | |
3d9edf09 | 786 | select GENERIC_GPIO |
dce1115b | 787 | select ARCH_REQUIRE_GPIOLIB |
9483a578 | 788 | select HAVE_CLK |
3bca103a | 789 | select ZONE_DMA |
9232fcc9 | 790 | select HAVE_IDE |
c5b736d0 | 791 | select COMMON_CLKDEV |
20e9969b | 792 | select GENERIC_ALLOCATOR |
ae88e05a | 793 | select ARCH_HAS_HOLES_MEMORYMODEL |
7c6337e2 KH |
794 | help |
795 | Support for TI's DaVinci platform. | |
796 | ||
3b938be6 RK |
797 | config ARCH_OMAP |
798 | bool "TI OMAP" | |
799 | select GENERIC_GPIO | |
9483a578 | 800 | select HAVE_CLK |
7444a72e | 801 | select ARCH_REQUIRE_GPIOLIB |
89c52ed4 | 802 | select ARCH_HAS_CPUFREQ |
3b938be6 | 803 | select GENERIC_TIME |
06cad098 | 804 | select GENERIC_CLOCKEVENTS |
9af915da | 805 | select ARCH_HAS_HOLES_MEMORYMODEL |
3b938be6 RK |
806 | help |
807 | Support for TI's OMAP platform (OMAP1 and OMAP2). | |
808 | ||
1da177e4 LT |
809 | endchoice |
810 | ||
ccf50e23 RK |
811 | # |
812 | # This is sorted alphabetically by mach-* pathname. However, plat-* | |
813 | # Kconfigs may be included either alphabetically (according to the | |
814 | # plat- suffix) or along side the corresponding mach-* source. | |
815 | # | |
95b8f20f RK |
816 | source "arch/arm/mach-aaec2000/Kconfig" |
817 | ||
818 | source "arch/arm/mach-at91/Kconfig" | |
819 | ||
820 | source "arch/arm/mach-bcmring/Kconfig" | |
821 | ||
1da177e4 LT |
822 | source "arch/arm/mach-clps711x/Kconfig" |
823 | ||
95b8f20f RK |
824 | source "arch/arm/mach-davinci/Kconfig" |
825 | ||
826 | source "arch/arm/mach-dove/Kconfig" | |
827 | ||
e7736d47 LB |
828 | source "arch/arm/mach-ep93xx/Kconfig" |
829 | ||
1da177e4 LT |
830 | source "arch/arm/mach-footbridge/Kconfig" |
831 | ||
59d3a193 PZ |
832 | source "arch/arm/mach-gemini/Kconfig" |
833 | ||
95b8f20f RK |
834 | source "arch/arm/mach-h720x/Kconfig" |
835 | ||
1da177e4 LT |
836 | source "arch/arm/mach-integrator/Kconfig" |
837 | ||
3f7e5815 LB |
838 | source "arch/arm/mach-iop32x/Kconfig" |
839 | ||
840 | source "arch/arm/mach-iop33x/Kconfig" | |
1da177e4 | 841 | |
285f5fa7 DW |
842 | source "arch/arm/mach-iop13xx/Kconfig" |
843 | ||
1da177e4 LT |
844 | source "arch/arm/mach-ixp4xx/Kconfig" |
845 | ||
846 | source "arch/arm/mach-ixp2000/Kconfig" | |
847 | ||
c4713074 LB |
848 | source "arch/arm/mach-ixp23xx/Kconfig" |
849 | ||
95b8f20f RK |
850 | source "arch/arm/mach-kirkwood/Kconfig" |
851 | ||
852 | source "arch/arm/mach-ks8695/Kconfig" | |
853 | ||
854 | source "arch/arm/mach-lh7a40x/Kconfig" | |
855 | ||
777f9beb LB |
856 | source "arch/arm/mach-loki/Kconfig" |
857 | ||
95b8f20f RK |
858 | source "arch/arm/mach-msm/Kconfig" |
859 | ||
794d15b2 SS |
860 | source "arch/arm/mach-mv78xx0/Kconfig" |
861 | ||
95b8f20f | 862 | source "arch/arm/plat-mxc/Kconfig" |
1da177e4 | 863 | |
95b8f20f | 864 | source "arch/arm/mach-netx/Kconfig" |
49cbe786 | 865 | |
95b8f20f RK |
866 | source "arch/arm/mach-nomadik/Kconfig" |
867 | source "arch/arm/plat-nomadik/Kconfig" | |
868 | ||
869 | source "arch/arm/mach-ns9xxx/Kconfig" | |
1da177e4 | 870 | |
186f93ea | 871 | source "arch/arm/mach-nuc93x/Kconfig" |
1da177e4 | 872 | |
d48af15e TL |
873 | source "arch/arm/plat-omap/Kconfig" |
874 | ||
875 | source "arch/arm/mach-omap1/Kconfig" | |
1da177e4 | 876 | |
1dbae815 TL |
877 | source "arch/arm/mach-omap2/Kconfig" |
878 | ||
9dd0b194 | 879 | source "arch/arm/mach-orion5x/Kconfig" |
585cf175 | 880 | |
95b8f20f RK |
881 | source "arch/arm/mach-pxa/Kconfig" |
882 | source "arch/arm/plat-pxa/Kconfig" | |
585cf175 | 883 | |
95b8f20f RK |
884 | source "arch/arm/mach-mmp/Kconfig" |
885 | ||
886 | source "arch/arm/mach-realview/Kconfig" | |
887 | ||
888 | source "arch/arm/mach-sa1100/Kconfig" | |
edabd38e | 889 | |
cf383678 | 890 | source "arch/arm/plat-samsung/Kconfig" |
a21765a7 | 891 | source "arch/arm/plat-s3c24xx/Kconfig" |
c4ffccdd | 892 | source "arch/arm/plat-s5p/Kconfig" |
5a7652f2 | 893 | source "arch/arm/plat-s5pc1xx/Kconfig" |
a21765a7 BD |
894 | |
895 | if ARCH_S3C2410 | |
896 | source "arch/arm/mach-s3c2400/Kconfig" | |
1da177e4 | 897 | source "arch/arm/mach-s3c2410/Kconfig" |
a21765a7 | 898 | source "arch/arm/mach-s3c2412/Kconfig" |
f1290a49 | 899 | source "arch/arm/mach-s3c2416/Kconfig" |
a21765a7 | 900 | source "arch/arm/mach-s3c2440/Kconfig" |
e4d06e39 | 901 | source "arch/arm/mach-s3c2443/Kconfig" |
a21765a7 | 902 | endif |
1da177e4 | 903 | |
a08ab637 | 904 | if ARCH_S3C64XX |
431107ea | 905 | source "arch/arm/mach-s3c64xx/Kconfig" |
a08ab637 BD |
906 | endif |
907 | ||
c4ffccdd KK |
908 | source "arch/arm/mach-s5p6440/Kconfig" |
909 | ||
550db7f1 | 910 | source "arch/arm/mach-s5p6442/Kconfig" |
7bd0f2f5 | 911 | |
5a7652f2 BM |
912 | if ARCH_S5PC1XX |
913 | source "arch/arm/mach-s5pc100/Kconfig" | |
914 | endif | |
915 | ||
170f4e42 KK |
916 | source "arch/arm/mach-s5pv210/Kconfig" |
917 | ||
882d01f9 | 918 | source "arch/arm/mach-shmobile/Kconfig" |
52c543f9 | 919 | |
882d01f9 | 920 | source "arch/arm/plat-stmp3xxx/Kconfig" |
9e73c84c | 921 | |
95b8f20f | 922 | source "arch/arm/mach-u300/Kconfig" |
1da177e4 | 923 | |
95b8f20f | 924 | source "arch/arm/mach-ux500/Kconfig" |
1da177e4 LT |
925 | |
926 | source "arch/arm/mach-versatile/Kconfig" | |
927 | ||
7ec80ddf | 928 | source "arch/arm/mach-w90x900/Kconfig" |
929 | ||
1da177e4 LT |
930 | # Definitions to make life easier |
931 | config ARCH_ACORN | |
932 | bool | |
933 | ||
7ae1f7ec LB |
934 | config PLAT_IOP |
935 | bool | |
469d3044 | 936 | select GENERIC_CLOCKEVENTS |
980f2296 | 937 | select GENERIC_TIME |
7ae1f7ec | 938 | |
69b02f6a LB |
939 | config PLAT_ORION |
940 | bool | |
941 | ||
bd5ce433 EM |
942 | config PLAT_PXA |
943 | bool | |
944 | ||
1da177e4 LT |
945 | source arch/arm/mm/Kconfig |
946 | ||
afe4b25e LB |
947 | config IWMMXT |
948 | bool "Enable iWMMXt support" | |
40305a58 EM |
949 | depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK |
950 | default y if PXA27x || PXA3xx || ARCH_MMP | |
afe4b25e LB |
951 | help |
952 | Enable support for iWMMXt context switching at run time if | |
953 | running on a CPU that supports it. | |
954 | ||
1da177e4 LT |
955 | # bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER |
956 | config XSCALE_PMU | |
957 | bool | |
958 | depends on CPU_XSCALE && !XSCALE_PMU_TIMER | |
959 | default y | |
960 | ||
0f4f0672 JI |
961 | config CPU_HAS_PMU |
962 | depends on CPU_V6 || CPU_V7 || XSCALE_PMU | |
963 | default y | |
964 | bool | |
965 | ||
3b93e7b0 HC |
966 | if !MMU |
967 | source "arch/arm/Kconfig-nommu" | |
968 | endif | |
969 | ||
9cba3ccc CM |
970 | config ARM_ERRATA_411920 |
971 | bool "ARM errata: Invalidation of the Instruction Cache operation can fail" | |
972 | depends on CPU_V6 && !SMP | |
973 | help | |
974 | Invalidation of the Instruction Cache operation can | |
975 | fail. This erratum is present in 1136 (before r1p4), 1156 and 1176. | |
976 | It does not affect the MPCore. This option enables the ARM Ltd. | |
977 | recommended workaround. | |
978 | ||
7ce236fc CM |
979 | config ARM_ERRATA_430973 |
980 | bool "ARM errata: Stale prediction on replaced interworking branch" | |
981 | depends on CPU_V7 | |
982 | help | |
983 | This option enables the workaround for the 430973 Cortex-A8 | |
984 | (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb | |
985 | interworking branch is replaced with another code sequence at the | |
986 | same virtual address, whether due to self-modifying code or virtual | |
987 | to physical address re-mapping, Cortex-A8 does not recover from the | |
988 | stale interworking branch prediction. This results in Cortex-A8 | |
989 | executing the new code sequence in the incorrect ARM or Thumb state. | |
990 | The workaround enables the BTB/BTAC operations by setting ACTLR.IBE | |
991 | and also flushes the branch target cache at every context switch. | |
992 | Note that setting specific bits in the ACTLR register may not be | |
993 | available in non-secure mode. | |
994 | ||
855c551f CM |
995 | config ARM_ERRATA_458693 |
996 | bool "ARM errata: Processor deadlock when a false hazard is created" | |
997 | depends on CPU_V7 | |
998 | help | |
999 | This option enables the workaround for the 458693 Cortex-A8 (r2p0) | |
1000 | erratum. For very specific sequences of memory operations, it is | |
1001 | possible for a hazard condition intended for a cache line to instead | |
1002 | be incorrectly associated with a different cache line. This false | |
1003 | hazard might then cause a processor deadlock. The workaround enables | |
1004 | the L1 caching of the NEON accesses and disables the PLD instruction | |
1005 | in the ACTLR register. Note that setting specific bits in the ACTLR | |
1006 | register may not be available in non-secure mode. | |
1007 | ||
0516e464 CM |
1008 | config ARM_ERRATA_460075 |
1009 | bool "ARM errata: Data written to the L2 cache can be overwritten with stale data" | |
1010 | depends on CPU_V7 | |
1011 | help | |
1012 | This option enables the workaround for the 460075 Cortex-A8 (r2p0) | |
1013 | erratum. Any asynchronous access to the L2 cache may encounter a | |
1014 | situation in which recent store transactions to the L2 cache are lost | |
1015 | and overwritten with stale memory contents from external memory. The | |
1016 | workaround disables the write-allocate mode for the L2 cache via the | |
1017 | ACTLR register. Note that setting specific bits in the ACTLR register | |
1018 | may not be available in non-secure mode. | |
1019 | ||
9e65582a SS |
1020 | config PL310_ERRATA_588369 |
1021 | bool "Clean & Invalidate maintenance operations do not invalidate clean lines" | |
1022 | depends on CACHE_L2X0 && ARCH_OMAP4 | |
1023 | help | |
1024 | The PL310 L2 cache controller implements three types of Clean & | |
1025 | Invalidate maintenance operations: by Physical Address | |
1026 | (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC). | |
1027 | They are architecturally defined to behave as the execution of a | |
1028 | clean operation followed immediately by an invalidate operation, | |
1029 | both performing to the same memory location. This functionality | |
1030 | is not correctly implemented in PL310 as clean lines are not | |
1031 | invalidated as a result of these operations. Note that this errata | |
1032 | uses Texas Instrument's secure monitor api. | |
1da177e4 LT |
1033 | endmenu |
1034 | ||
1035 | source "arch/arm/common/Kconfig" | |
1036 | ||
1037 | config FORCE_MAX_ZONEORDER | |
1038 | int | |
1039 | depends on SA1111 | |
1040 | default "9" | |
1041 | ||
1042 | menu "Bus support" | |
1043 | ||
1044 | config ARM_AMBA | |
1045 | bool | |
1046 | ||
1047 | config ISA | |
1048 | bool | |
1da177e4 LT |
1049 | help |
1050 | Find out whether you have ISA slots on your motherboard. ISA is the | |
1051 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
1052 | inside your box. Other bus systems are PCI, EISA, MicroChannel | |
1053 | (MCA) or VESA. ISA is an older system, now being displaced by PCI; | |
1054 | newer boards don't support it. If you have ISA, say Y, otherwise N. | |
1055 | ||
065909b9 | 1056 | # Select ISA DMA controller support |
1da177e4 LT |
1057 | config ISA_DMA |
1058 | bool | |
065909b9 | 1059 | select ISA_DMA_API |
1da177e4 | 1060 | |
065909b9 | 1061 | # Select ISA DMA interface |
5cae841b AV |
1062 | config ISA_DMA_API |
1063 | bool | |
5cae841b | 1064 | |
1da177e4 | 1065 | config PCI |
a0113a99 | 1066 | bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE |
1da177e4 LT |
1067 | help |
1068 | Find out whether you have a PCI motherboard. PCI is the name of a | |
1069 | bus system, i.e. the way the CPU talks to the other stuff inside | |
1070 | your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or | |
1071 | VESA. If you have PCI, say Y, otherwise N. | |
1072 | ||
36e23590 MW |
1073 | config PCI_SYSCALL |
1074 | def_bool PCI | |
1075 | ||
1da177e4 LT |
1076 | # Select the host bridge type |
1077 | config PCI_HOST_VIA82C505 | |
1078 | bool | |
1079 | depends on PCI && ARCH_SHARK | |
1080 | default y | |
1081 | ||
a0113a99 MR |
1082 | config PCI_HOST_ITE8152 |
1083 | bool | |
1084 | depends on PCI && MACH_ARMCORE | |
1085 | default y | |
1086 | select DMABOUNCE | |
1087 | ||
1da177e4 LT |
1088 | source "drivers/pci/Kconfig" |
1089 | ||
1090 | source "drivers/pcmcia/Kconfig" | |
1091 | ||
1092 | endmenu | |
1093 | ||
1094 | menu "Kernel Features" | |
1095 | ||
0567a0c0 KH |
1096 | source "kernel/time/Kconfig" |
1097 | ||
1da177e4 LT |
1098 | config SMP |
1099 | bool "Symmetric Multi-Processing (EXPERIMENTAL)" | |
42578c82 | 1100 | depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\ |
850265e8 | 1101 | MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500) |
bc28248e | 1102 | depends on GENERIC_CLOCKEVENTS |
f6dd9fa5 | 1103 | select USE_GENERIC_SMP_HELPERS |
850265e8 | 1104 | select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500) |
1da177e4 LT |
1105 | help |
1106 | This enables support for systems with more than one CPU. If you have | |
1107 | a system with only one CPU, like most personal computers, say N. If | |
1108 | you have a system with more than one CPU, say Y. | |
1109 | ||
1110 | If you say N here, the kernel will run on single and multiprocessor | |
1111 | machines, but will use only one CPU of a multiprocessor machine. If | |
1112 | you say Y here, the kernel will run on many, but not all, single | |
1113 | processor machines. On a single processor machine, the kernel will | |
1114 | run faster if you say N here. | |
1115 | ||
03502faa | 1116 | See also <file:Documentation/i386/IO-APIC.txt>, |
1da177e4 LT |
1117 | <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at |
1118 | <http://www.linuxdoc.org/docs.html#howto>. | |
1119 | ||
1120 | If you don't know what to do here, say N. | |
1121 | ||
a8cbcd92 RK |
1122 | config HAVE_ARM_SCU |
1123 | bool | |
1124 | depends on SMP | |
1125 | help | |
1126 | This option enables support for the ARM system coherency unit | |
1127 | ||
f32f4ce2 RK |
1128 | config HAVE_ARM_TWD |
1129 | bool | |
1130 | depends on SMP | |
1131 | help | |
1132 | This options enables support for the ARM timer and watchdog unit | |
1133 | ||
8d5796d2 LB |
1134 | choice |
1135 | prompt "Memory split" | |
1136 | default VMSPLIT_3G | |
1137 | help | |
1138 | Select the desired split between kernel and user memory. | |
1139 | ||
1140 | If you are not absolutely sure what you are doing, leave this | |
1141 | option alone! | |
1142 | ||
1143 | config VMSPLIT_3G | |
1144 | bool "3G/1G user/kernel split" | |
1145 | config VMSPLIT_2G | |
1146 | bool "2G/2G user/kernel split" | |
1147 | config VMSPLIT_1G | |
1148 | bool "1G/3G user/kernel split" | |
1149 | endchoice | |
1150 | ||
1151 | config PAGE_OFFSET | |
1152 | hex | |
1153 | default 0x40000000 if VMSPLIT_1G | |
1154 | default 0x80000000 if VMSPLIT_2G | |
1155 | default 0xC0000000 | |
1156 | ||
1da177e4 LT |
1157 | config NR_CPUS |
1158 | int "Maximum number of CPUs (2-32)" | |
1159 | range 2 32 | |
1160 | depends on SMP | |
1161 | default "4" | |
1162 | ||
a054a811 RK |
1163 | config HOTPLUG_CPU |
1164 | bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" | |
1165 | depends on SMP && HOTPLUG && EXPERIMENTAL | |
1166 | help | |
1167 | Say Y here to experiment with turning CPUs off and on. CPUs | |
1168 | can be controlled through /sys/devices/system/cpu. | |
1169 | ||
37ee16ae RK |
1170 | config LOCAL_TIMERS |
1171 | bool "Use local timer interrupts" | |
42578c82 | 1172 | depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \ |
850265e8 | 1173 | REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500) |
37ee16ae | 1174 | default y |
850265e8 | 1175 | select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500) |
37ee16ae RK |
1176 | help |
1177 | Enable support for local timers on SMP platforms, rather then the | |
1178 | legacy IPI broadcast method. Local timers allows the system | |
1179 | accounting to be spread across the timer interval, preventing a | |
1180 | "thundering herd" at every timer tick. | |
1181 | ||
d45a398f | 1182 | source kernel/Kconfig.preempt |
1da177e4 | 1183 | |
f8065813 RK |
1184 | config HZ |
1185 | int | |
1186 | default 128 if ARCH_L7200 | |
170f4e42 | 1187 | default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || ARCH_S5P6442 || ARCH_S5PV210 |
bfe65704 | 1188 | default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER |
5248c657 | 1189 | default AT91_TIMER_HZ if ARCH_AT91 |
f8065813 RK |
1190 | default 100 |
1191 | ||
16c79651 CM |
1192 | config THUMB2_KERNEL |
1193 | bool "Compile the kernel in Thumb-2 mode" | |
1194 | depends on CPU_V7 && EXPERIMENTAL | |
1195 | select AEABI | |
1196 | select ARM_ASM_UNIFIED | |
1197 | help | |
1198 | By enabling this option, the kernel will be compiled in | |
1199 | Thumb-2 mode. A compiler/assembler that understand the unified | |
1200 | ARM-Thumb syntax is needed. | |
1201 | ||
1202 | If unsure, say N. | |
1203 | ||
0becb088 CM |
1204 | config ARM_ASM_UNIFIED |
1205 | bool | |
1206 | ||
704bdda0 NP |
1207 | config AEABI |
1208 | bool "Use the ARM EABI to compile the kernel" | |
1209 | help | |
1210 | This option allows for the kernel to be compiled using the latest | |
1211 | ARM ABI (aka EABI). This is only useful if you are using a user | |
1212 | space environment that is also compiled with EABI. | |
1213 | ||
1214 | Since there are major incompatibilities between the legacy ABI and | |
1215 | EABI, especially with regard to structure member alignment, this | |
1216 | option also changes the kernel syscall calling convention to | |
1217 | disambiguate both ABIs and allow for backward compatibility support | |
1218 | (selected with CONFIG_OABI_COMPAT). | |
1219 | ||
1220 | To use this you need GCC version 4.0.0 or later. | |
1221 | ||
6c90c872 | 1222 | config OABI_COMPAT |
a73a3ff1 | 1223 | bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)" |
61c484d4 | 1224 | depends on AEABI && EXPERIMENTAL |
6c90c872 NP |
1225 | default y |
1226 | help | |
1227 | This option preserves the old syscall interface along with the | |
1228 | new (ARM EABI) one. It also provides a compatibility layer to | |
1229 | intercept syscalls that have structure arguments which layout | |
1230 | in memory differs between the legacy ABI and the new ARM EABI | |
1231 | (only for non "thumb" binaries). This option adds a tiny | |
1232 | overhead to all syscalls and produces a slightly larger kernel. | |
1233 | If you know you'll be using only pure EABI user space then you | |
1234 | can say N here. If this option is not selected and you attempt | |
1235 | to execute a legacy ABI binary then the result will be | |
1236 | UNPREDICTABLE (in fact it can be predicted that it won't work | |
1237 | at all). If in doubt say Y. | |
1238 | ||
eb33575c | 1239 | config ARCH_HAS_HOLES_MEMORYMODEL |
e80d6a24 | 1240 | bool |
e80d6a24 | 1241 | |
07a2f737 | 1242 | # Discontigmem is deprecated |
3f22ab27 | 1243 | config ARCH_DISCONTIGMEM_ENABLE |
1da177e4 | 1244 | bool |
1da177e4 | 1245 | |
05944d74 RK |
1246 | config ARCH_SPARSEMEM_ENABLE |
1247 | bool | |
1248 | ||
07a2f737 RK |
1249 | config ARCH_SPARSEMEM_DEFAULT |
1250 | def_bool ARCH_SPARSEMEM_ENABLE | |
1251 | ||
05944d74 | 1252 | config ARCH_SELECT_MEMORY_MODEL |
07a2f737 | 1253 | def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE |
05944d74 | 1254 | |
c80d79d7 YG |
1255 | config NODES_SHIFT |
1256 | int | |
1257 | default "4" if ARCH_LH7A40X | |
1258 | default "2" | |
1259 | depends on NEED_MULTIPLE_NODES | |
1260 | ||
053a96ca NP |
1261 | config HIGHMEM |
1262 | bool "High Memory Support (EXPERIMENTAL)" | |
1263 | depends on MMU && EXPERIMENTAL | |
1264 | help | |
1265 | The address space of ARM processors is only 4 Gigabytes large | |
1266 | and it has to accommodate user address space, kernel address | |
1267 | space as well as some memory mapped IO. That means that, if you | |
1268 | have a large amount of physical memory and/or IO, not all of the | |
1269 | memory can be "permanently mapped" by the kernel. The physical | |
1270 | memory that is not permanently mapped is called "high memory". | |
1271 | ||
1272 | Depending on the selected kernel/user memory split, minimum | |
1273 | vmalloc space and actual amount of RAM, you may not need this | |
1274 | option which should result in a slightly faster kernel. | |
1275 | ||
1276 | If unsure, say n. | |
1277 | ||
65cec8e3 RK |
1278 | config HIGHPTE |
1279 | bool "Allocate 2nd-level pagetables from highmem" | |
1280 | depends on HIGHMEM | |
1281 | depends on !OUTER_CACHE | |
1282 | ||
1b8873a0 JI |
1283 | config HW_PERF_EVENTS |
1284 | bool "Enable hardware performance counter support for perf events" | |
796d1295 | 1285 | depends on PERF_EVENTS && CPU_HAS_PMU && (CPU_V6 || CPU_V7) |
1b8873a0 JI |
1286 | default y |
1287 | help | |
1288 | Enable hardware performance counter support for perf events. If | |
1289 | disabled, perf events will use software events only. | |
1290 | ||
3f22ab27 DH |
1291 | source "mm/Kconfig" |
1292 | ||
1da177e4 LT |
1293 | config LEDS |
1294 | bool "Timer and CPU usage LEDs" | |
e055d5bf | 1295 | depends on ARCH_CDB89712 || ARCH_EBSA110 || \ |
8c8fdbc9 | 1296 | ARCH_EBSA285 || ARCH_INTEGRATOR || \ |
1da177e4 LT |
1297 | ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \ |
1298 | ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \ | |
73a59c1c | 1299 | ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \ |
25329671 | 1300 | ARCH_AT91 || ARCH_DAVINCI || \ |
ff3042fb | 1301 | ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW |
1da177e4 LT |
1302 | help |
1303 | If you say Y here, the LEDs on your machine will be used | |
1304 | to provide useful information about your current system status. | |
1305 | ||
1306 | If you are compiling a kernel for a NetWinder or EBSA-285, you will | |
1307 | be able to select which LEDs are active using the options below. If | |
1308 | you are compiling a kernel for the EBSA-110 or the LART however, the | |
1309 | red LED will simply flash regularly to indicate that the system is | |
1310 | still functional. It is safe to say Y here if you have a CATS | |
1311 | system, but the driver will do nothing. | |
1312 | ||
1313 | config LEDS_TIMER | |
1314 | bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \ | |
eebdf7d7 DB |
1315 | OMAP_OSK_MISTRAL || MACH_OMAP_H2 \ |
1316 | || MACH_OMAP_PERSEUS2 | |
1da177e4 | 1317 | depends on LEDS |
0567a0c0 | 1318 | depends on !GENERIC_CLOCKEVENTS |
1da177e4 LT |
1319 | default y if ARCH_EBSA110 |
1320 | help | |
1321 | If you say Y here, one of the system LEDs (the green one on the | |
1322 | NetWinder, the amber one on the EBSA285, or the red one on the LART) | |
1323 | will flash regularly to indicate that the system is still | |
1324 | operational. This is mainly useful to kernel hackers who are | |
1325 | debugging unstable kernels. | |
1326 | ||
1327 | The LART uses the same LED for both Timer LED and CPU usage LED | |
1328 | functions. You may choose to use both, but the Timer LED function | |
1329 | will overrule the CPU usage LED. | |
1330 | ||
1331 | config LEDS_CPU | |
1332 | bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \ | |
eebdf7d7 DB |
1333 | !ARCH_OMAP) \ |
1334 | || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \ | |
1335 | || MACH_OMAP_PERSEUS2 | |
1da177e4 LT |
1336 | depends on LEDS |
1337 | help | |
1338 | If you say Y here, the red LED will be used to give a good real | |
1339 | time indication of CPU usage, by lighting whenever the idle task | |
1340 | is not currently executing. | |
1341 | ||
1342 | The LART uses the same LED for both Timer LED and CPU usage LED | |
1343 | functions. You may choose to use both, but the Timer LED function | |
1344 | will overrule the CPU usage LED. | |
1345 | ||
1346 | config ALIGNMENT_TRAP | |
1347 | bool | |
f12d0d7c | 1348 | depends on CPU_CP15_MMU |
1da177e4 | 1349 | default y if !ARCH_EBSA110 |
e119bfff | 1350 | select HAVE_PROC_CPU if PROC_FS |
1da177e4 | 1351 | help |
84eb8d06 | 1352 | ARM processors cannot fetch/store information which is not |
1da177e4 LT |
1353 | naturally aligned on the bus, i.e., a 4 byte fetch must start at an |
1354 | address divisible by 4. On 32-bit ARM processors, these non-aligned | |
1355 | fetch/store instructions will be emulated in software if you say | |
1356 | here, which has a severe performance impact. This is necessary for | |
1357 | correct operation of some network protocols. With an IP-only | |
1358 | configuration it is safe to say N, otherwise say Y. | |
1359 | ||
39ec58f3 LB |
1360 | config UACCESS_WITH_MEMCPY |
1361 | bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)" | |
1362 | depends on MMU && EXPERIMENTAL | |
1363 | default y if CPU_FEROCEON | |
1364 | help | |
1365 | Implement faster copy_to_user and clear_user methods for CPU | |
1366 | cores where a 8-word STM instruction give significantly higher | |
1367 | memory write throughput than a sequence of individual 32bit stores. | |
1368 | ||
1369 | A possible side effect is a slight increase in scheduling latency | |
1370 | between threads sharing the same address space if they invoke | |
1371 | such copy operations with large buffers. | |
1372 | ||
1373 | However, if the CPU data cache is using a write-allocate mode, | |
1374 | this option is unlikely to provide any performance gain. | |
1375 | ||
1da177e4 LT |
1376 | endmenu |
1377 | ||
1378 | menu "Boot options" | |
1379 | ||
1380 | # Compressed boot loader in ROM. Yes, we really want to ask about | |
1381 | # TEXT and BSS so we preserve their values in the config files. | |
1382 | config ZBOOT_ROM_TEXT | |
1383 | hex "Compressed ROM boot loader base address" | |
1384 | default "0" | |
1385 | help | |
1386 | The physical address at which the ROM-able zImage is to be | |
1387 | placed in the target. Platforms which normally make use of | |
1388 | ROM-able zImage formats normally set this to a suitable | |
1389 | value in their defconfig file. | |
1390 | ||
1391 | If ZBOOT_ROM is not enabled, this has no effect. | |
1392 | ||
1393 | config ZBOOT_ROM_BSS | |
1394 | hex "Compressed ROM boot loader BSS address" | |
1395 | default "0" | |
1396 | help | |
f8c440b2 DF |
1397 | The base address of an area of read/write memory in the target |
1398 | for the ROM-able zImage which must be available while the | |
1399 | decompressor is running. It must be large enough to hold the | |
1400 | entire decompressed kernel plus an additional 128 KiB. | |
1401 | Platforms which normally make use of ROM-able zImage formats | |
1402 | normally set this to a suitable value in their defconfig file. | |
1da177e4 LT |
1403 | |
1404 | If ZBOOT_ROM is not enabled, this has no effect. | |
1405 | ||
1406 | config ZBOOT_ROM | |
1407 | bool "Compressed boot loader in ROM/flash" | |
1408 | depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS | |
1409 | help | |
1410 | Say Y here if you intend to execute your compressed kernel image | |
1411 | (zImage) directly from ROM or flash. If unsure, say N. | |
1412 | ||
1413 | config CMDLINE | |
1414 | string "Default kernel command string" | |
1415 | default "" | |
1416 | help | |
1417 | On some architectures (EBSA110 and CATS), there is currently no way | |
1418 | for the boot loader to pass arguments to the kernel. For these | |
1419 | architectures, you should supply some command-line options at build | |
1420 | time by entering them here. As a minimum, you should specify the | |
1421 | memory size and the root device (e.g., mem=64M root=/dev/nfs). | |
1422 | ||
1423 | config XIP_KERNEL | |
1424 | bool "Kernel Execute-In-Place from ROM" | |
1425 | depends on !ZBOOT_ROM | |
1426 | help | |
1427 | Execute-In-Place allows the kernel to run from non-volatile storage | |
1428 | directly addressable by the CPU, such as NOR flash. This saves RAM | |
1429 | space since the text section of the kernel is not loaded from flash | |
1430 | to RAM. Read-write sections, such as the data section and stack, | |
1431 | are still copied to RAM. The XIP kernel is not compressed since | |
1432 | it has to run directly from flash, so it will take more space to | |
1433 | store it. The flash address used to link the kernel object files, | |
1434 | and for storing it, is configuration dependent. Therefore, if you | |
1435 | say Y here, you must know the proper physical address where to | |
1436 | store the kernel image depending on your own flash memory usage. | |
1437 | ||
1438 | Also note that the make target becomes "make xipImage" rather than | |
1439 | "make zImage" or "make Image". The final kernel binary to put in | |
1440 | ROM memory will be arch/arm/boot/xipImage. | |
1441 | ||
1442 | If unsure, say N. | |
1443 | ||
1444 | config XIP_PHYS_ADDR | |
1445 | hex "XIP Kernel Physical Location" | |
1446 | depends on XIP_KERNEL | |
1447 | default "0x00080000" | |
1448 | help | |
1449 | This is the physical address in your flash memory the kernel will | |
1450 | be linked for and stored to. This address is dependent on your | |
1451 | own flash usage. | |
1452 | ||
c587e4a6 RP |
1453 | config KEXEC |
1454 | bool "Kexec system call (EXPERIMENTAL)" | |
1455 | depends on EXPERIMENTAL | |
1456 | help | |
1457 | kexec is a system call that implements the ability to shutdown your | |
1458 | current kernel, and to start another kernel. It is like a reboot | |
01dd2fbf | 1459 | but it is independent of the system firmware. And like a reboot |
c587e4a6 RP |
1460 | you can start any kernel with it, not just Linux. |
1461 | ||
1462 | It is an ongoing process to be certain the hardware in a machine | |
1463 | is properly shutdown, so do not be surprised if this code does not | |
1464 | initially work for you. It may help to enable device hotplugging | |
1465 | support. | |
1466 | ||
4cd9d6f7 RP |
1467 | config ATAGS_PROC |
1468 | bool "Export atags in procfs" | |
b98d7291 UL |
1469 | depends on KEXEC |
1470 | default y | |
4cd9d6f7 RP |
1471 | help |
1472 | Should the atags used to boot the kernel be exported in an "atags" | |
1473 | file in procfs. Useful with kexec. | |
1474 | ||
1da177e4 LT |
1475 | endmenu |
1476 | ||
ac9d7efc | 1477 | menu "CPU Power Management" |
1da177e4 | 1478 | |
89c52ed4 | 1479 | if ARCH_HAS_CPUFREQ |
1da177e4 LT |
1480 | |
1481 | source "drivers/cpufreq/Kconfig" | |
1482 | ||
1483 | config CPU_FREQ_SA1100 | |
1484 | bool | |
1da177e4 LT |
1485 | |
1486 | config CPU_FREQ_SA1110 | |
1487 | bool | |
1da177e4 LT |
1488 | |
1489 | config CPU_FREQ_INTEGRATOR | |
1490 | tristate "CPUfreq driver for ARM Integrator CPUs" | |
1491 | depends on ARCH_INTEGRATOR && CPU_FREQ | |
1492 | default y | |
1493 | help | |
1494 | This enables the CPUfreq driver for ARM Integrator CPUs. | |
1495 | ||
1496 | For details, take a look at <file:Documentation/cpu-freq>. | |
1497 | ||
1498 | If in doubt, say Y. | |
1499 | ||
9e2697ff RK |
1500 | config CPU_FREQ_PXA |
1501 | bool | |
1502 | depends on CPU_FREQ && ARCH_PXA && PXA25x | |
1503 | default y | |
1504 | select CPU_FREQ_DEFAULT_GOV_USERSPACE | |
1505 | ||
b3748ddd MB |
1506 | config CPU_FREQ_S3C64XX |
1507 | bool "CPUfreq support for Samsung S3C64XX CPUs" | |
1508 | depends on CPU_FREQ && CPU_S3C6410 | |
1509 | ||
9d56c02a BD |
1510 | config CPU_FREQ_S3C |
1511 | bool | |
1512 | help | |
1513 | Internal configuration node for common cpufreq on Samsung SoC | |
1514 | ||
1515 | config CPU_FREQ_S3C24XX | |
1516 | bool "CPUfreq driver for Samsung S3C24XX series CPUs" | |
1517 | depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL | |
1518 | select CPU_FREQ_S3C | |
1519 | help | |
1520 | This enables the CPUfreq driver for the Samsung S3C24XX family | |
1521 | of CPUs. | |
1522 | ||
1523 | For details, take a look at <file:Documentation/cpu-freq>. | |
1524 | ||
1525 | If in doubt, say N. | |
1526 | ||
1527 | config CPU_FREQ_S3C24XX_PLL | |
1528 | bool "Support CPUfreq changing of PLL frequency" | |
1529 | depends on CPU_FREQ_S3C24XX && EXPERIMENTAL | |
1530 | help | |
1531 | Compile in support for changing the PLL frequency from the | |
1532 | S3C24XX series CPUfreq driver. The PLL takes time to settle | |
1533 | after a frequency change, so by default it is not enabled. | |
1534 | ||
1535 | This also means that the PLL tables for the selected CPU(s) will | |
1536 | be built which may increase the size of the kernel image. | |
1537 | ||
1538 | config CPU_FREQ_S3C24XX_DEBUG | |
1539 | bool "Debug CPUfreq Samsung driver core" | |
1540 | depends on CPU_FREQ_S3C24XX | |
1541 | help | |
1542 | Enable s3c_freq_dbg for the Samsung S3C CPUfreq core | |
1543 | ||
1544 | config CPU_FREQ_S3C24XX_IODEBUG | |
1545 | bool "Debug CPUfreq Samsung driver IO timing" | |
1546 | depends on CPU_FREQ_S3C24XX | |
1547 | help | |
1548 | Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core | |
1549 | ||
e6d197a6 BD |
1550 | config CPU_FREQ_S3C24XX_DEBUGFS |
1551 | bool "Export debugfs for CPUFreq" | |
1552 | depends on CPU_FREQ_S3C24XX && DEBUG_FS | |
1553 | help | |
1554 | Export status information via debugfs. | |
1555 | ||
1da177e4 LT |
1556 | endif |
1557 | ||
ac9d7efc RK |
1558 | source "drivers/cpuidle/Kconfig" |
1559 | ||
1560 | endmenu | |
1561 | ||
1da177e4 LT |
1562 | menu "Floating point emulation" |
1563 | ||
1564 | comment "At least one emulation must be selected" | |
1565 | ||
1566 | config FPE_NWFPE | |
1567 | bool "NWFPE math emulation" | |
8993a44c | 1568 | depends on !AEABI || OABI_COMPAT |
1da177e4 LT |
1569 | ---help--- |
1570 | Say Y to include the NWFPE floating point emulator in the kernel. | |
1571 | This is necessary to run most binaries. Linux does not currently | |
1572 | support floating point hardware so you need to say Y here even if | |
1573 | your machine has an FPA or floating point co-processor podule. | |
1574 | ||
1575 | You may say N here if you are going to load the Acorn FPEmulator | |
1576 | early in the bootup. | |
1577 | ||
1578 | config FPE_NWFPE_XP | |
1579 | bool "Support extended precision" | |
bedf142b | 1580 | depends on FPE_NWFPE |
1da177e4 LT |
1581 | help |
1582 | Say Y to include 80-bit support in the kernel floating-point | |
1583 | emulator. Otherwise, only 32 and 64-bit support is compiled in. | |
1584 | Note that gcc does not generate 80-bit operations by default, | |
1585 | so in most cases this option only enlarges the size of the | |
1586 | floating point emulator without any good reason. | |
1587 | ||
1588 | You almost surely want to say N here. | |
1589 | ||
1590 | config FPE_FASTFPE | |
1591 | bool "FastFPE math emulation (EXPERIMENTAL)" | |
8993a44c | 1592 | depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL |
1da177e4 LT |
1593 | ---help--- |
1594 | Say Y here to include the FAST floating point emulator in the kernel. | |
1595 | This is an experimental much faster emulator which now also has full | |
1596 | precision for the mantissa. It does not support any exceptions. | |
1597 | It is very simple, and approximately 3-6 times faster than NWFPE. | |
1598 | ||
1599 | It should be sufficient for most programs. It may be not suitable | |
1600 | for scientific calculations, but you have to check this for yourself. | |
1601 | If you do not feel you need a faster FP emulation you should better | |
1602 | choose NWFPE. | |
1603 | ||
1604 | config VFP | |
1605 | bool "VFP-format floating point maths" | |
c00d4ffd | 1606 | depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON |
1da177e4 LT |
1607 | help |
1608 | Say Y to include VFP support code in the kernel. This is needed | |
1609 | if your hardware includes a VFP unit. | |
1610 | ||
1611 | Please see <file:Documentation/arm/VFP/release-notes.txt> for | |
1612 | release notes and additional status information. | |
1613 | ||
1614 | Say N if your target does not have VFP hardware. | |
1615 | ||
25ebee02 CM |
1616 | config VFPv3 |
1617 | bool | |
1618 | depends on VFP | |
1619 | default y if CPU_V7 | |
1620 | ||
b5872db4 CM |
1621 | config NEON |
1622 | bool "Advanced SIMD (NEON) Extension support" | |
1623 | depends on VFPv3 && CPU_V7 | |
1624 | help | |
1625 | Say Y to include support code for NEON, the ARMv7 Advanced SIMD | |
1626 | Extension. | |
1627 | ||
1da177e4 LT |
1628 | endmenu |
1629 | ||
1630 | menu "Userspace binary formats" | |
1631 | ||
1632 | source "fs/Kconfig.binfmt" | |
1633 | ||
1634 | config ARTHUR | |
1635 | tristate "RISC OS personality" | |
704bdda0 | 1636 | depends on !AEABI |
1da177e4 LT |
1637 | help |
1638 | Say Y here to include the kernel code necessary if you want to run | |
1639 | Acorn RISC OS/Arthur binaries under Linux. This code is still very | |
1640 | experimental; if this sounds frightening, say N and sleep in peace. | |
1641 | You can also say M here to compile this support as a module (which | |
1642 | will be called arthur). | |
1643 | ||
1644 | endmenu | |
1645 | ||
1646 | menu "Power management options" | |
1647 | ||
eceab4ac | 1648 | source "kernel/power/Kconfig" |
1da177e4 | 1649 | |
f4cb5700 JB |
1650 | config ARCH_SUSPEND_POSSIBLE |
1651 | def_bool y | |
1652 | ||
1da177e4 LT |
1653 | endmenu |
1654 | ||
d5950b43 SR |
1655 | source "net/Kconfig" |
1656 | ||
ac25150f | 1657 | source "drivers/Kconfig" |
1da177e4 LT |
1658 | |
1659 | source "fs/Kconfig" | |
1660 | ||
1da177e4 LT |
1661 | source "arch/arm/Kconfig.debug" |
1662 | ||
1663 | source "security/Kconfig" | |
1664 | ||
1665 | source "crypto/Kconfig" | |
1666 | ||
1667 | source "lib/Kconfig" |