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 |
42d4b839 | 15 | select HAVE_OPROFILE |
5cbad0eb | 16 | select HAVE_ARCH_KGDB |
3f550096 | 17 | select HAVE_KPROBES if (!XIP_KERNEL) |
9edddaa2 | 18 | select HAVE_KRETPROBES if (HAVE_KPROBES) |
606576ce | 19 | select HAVE_FUNCTION_TRACER if (!XIP_KERNEL) |
1fe53268 | 20 | select HAVE_GENERIC_DMA_COHERENT |
1da177e4 LT |
21 | help |
22 | The ARM series is a line of low-power-consumption RISC chip designs | |
f6c8965a | 23 | licensed by ARM Ltd and targeted at embedded applications and |
1da177e4 | 24 | handhelds such as the Compaq IPAQ. ARM-based PCs are no longer |
f6c8965a | 25 | manufactured, but legacy ARM-based PC hardware remains popular in |
1da177e4 LT |
26 | Europe. There is an ARM Linux project with a web page at |
27 | <http://www.arm.linux.org.uk/>. | |
28 | ||
1a189b97 RK |
29 | config HAVE_PWM |
30 | bool | |
31 | ||
75e7153a RB |
32 | config SYS_SUPPORTS_APM_EMULATION |
33 | bool | |
34 | ||
0a938b97 DB |
35 | config GENERIC_GPIO |
36 | bool | |
0a938b97 | 37 | |
746140c7 KH |
38 | config GENERIC_TIME |
39 | bool | |
746140c7 | 40 | |
0567a0c0 KH |
41 | config GENERIC_CLOCKEVENTS |
42 | bool | |
0567a0c0 | 43 | |
a8655e83 CM |
44 | config GENERIC_CLOCKEVENTS_BROADCAST |
45 | bool | |
46 | depends on GENERIC_CLOCKEVENTS | |
47 | default y if SMP && !LOCAL_TIMERS | |
48 | ||
1da177e4 LT |
49 | config MMU |
50 | bool | |
51 | default y | |
52 | ||
5ea81769 AV |
53 | config NO_IOPORT |
54 | bool | |
5ea81769 | 55 | |
1da177e4 LT |
56 | config EISA |
57 | bool | |
58 | ---help--- | |
59 | The Extended Industry Standard Architecture (EISA) bus was | |
60 | developed as an open alternative to the IBM MicroChannel bus. | |
61 | ||
62 | The EISA bus provided some of the features of the IBM MicroChannel | |
63 | bus while maintaining backward compatibility with cards made for | |
64 | the older ISA bus. The EISA bus saw limited use between 1988 and | |
65 | 1995 when it was made obsolete by the PCI bus. | |
66 | ||
67 | Say Y here if you are building a kernel for an EISA-based machine. | |
68 | ||
69 | Otherwise, say N. | |
70 | ||
71 | config SBUS | |
72 | bool | |
73 | ||
74 | config MCA | |
75 | bool | |
76 | help | |
77 | MicroChannel Architecture is found in some IBM PS/2 machines and | |
78 | laptops. It is a bus system similar to PCI or ISA. See | |
79 | <file:Documentation/mca.txt> (and especially the web page given | |
80 | there) before attempting to build an MCA bus kernel. | |
81 | ||
4a2581a0 TG |
82 | config GENERIC_HARDIRQS |
83 | bool | |
84 | default y | |
85 | ||
f16fb1ec RK |
86 | config STACKTRACE_SUPPORT |
87 | bool | |
88 | default y | |
89 | ||
f76e9154 NP |
90 | config HAVE_LATENCYTOP_SUPPORT |
91 | bool | |
92 | depends on !SMP | |
93 | default y | |
94 | ||
f16fb1ec RK |
95 | config LOCKDEP_SUPPORT |
96 | bool | |
97 | default y | |
98 | ||
7ad1bcb2 RK |
99 | config TRACE_IRQFLAGS_SUPPORT |
100 | bool | |
101 | default y | |
102 | ||
4a2581a0 TG |
103 | config HARDIRQS_SW_RESEND |
104 | bool | |
105 | default y | |
106 | ||
107 | config GENERIC_IRQ_PROBE | |
108 | bool | |
109 | default y | |
110 | ||
95c354fe NP |
111 | config GENERIC_LOCKBREAK |
112 | bool | |
113 | default y | |
114 | depends on SMP && PREEMPT | |
115 | ||
1da177e4 LT |
116 | config RWSEM_GENERIC_SPINLOCK |
117 | bool | |
118 | default y | |
119 | ||
120 | config RWSEM_XCHGADD_ALGORITHM | |
121 | bool | |
122 | ||
f0d1b0b3 DH |
123 | config ARCH_HAS_ILOG2_U32 |
124 | bool | |
f0d1b0b3 DH |
125 | |
126 | config ARCH_HAS_ILOG2_U64 | |
127 | bool | |
f0d1b0b3 | 128 | |
b89c3b16 AM |
129 | config GENERIC_HWEIGHT |
130 | bool | |
131 | default y | |
132 | ||
1da177e4 LT |
133 | config GENERIC_CALIBRATE_DELAY |
134 | bool | |
135 | default y | |
136 | ||
a08b6b79 AV |
137 | config ARCH_MAY_HAVE_PC_FDC |
138 | bool | |
139 | ||
5ac6da66 CL |
140 | config ZONE_DMA |
141 | bool | |
5ac6da66 | 142 | |
1da177e4 LT |
143 | config GENERIC_ISA_DMA |
144 | bool | |
145 | ||
1da177e4 LT |
146 | config FIQ |
147 | bool | |
148 | ||
034d2f5a AV |
149 | config ARCH_MTD_XIP |
150 | bool | |
151 | ||
60a752ef | 152 | config GENERIC_HARDIRQS_NO__DO_IRQ |
60a752ef PZ |
153 | def_bool y |
154 | ||
c0ffa3a9 MD |
155 | if OPROFILE |
156 | ||
157 | config OPROFILE_ARMV6 | |
158 | def_bool y | |
159 | depends on CPU_V6 && !SMP | |
160 | select OPROFILE_ARM11_CORE | |
161 | ||
162 | config OPROFILE_MPCORE | |
163 | def_bool y | |
164 | depends on CPU_V6 && SMP | |
165 | select OPROFILE_ARM11_CORE | |
166 | ||
167 | config OPROFILE_ARM11_CORE | |
168 | bool | |
169 | ||
d7ac4e28 JP |
170 | config OPROFILE_ARMV7 |
171 | def_bool y | |
172 | depends on CPU_V7 && !SMP | |
173 | bool | |
174 | ||
c0ffa3a9 MD |
175 | endif |
176 | ||
c760fc19 HC |
177 | config VECTORS_BASE |
178 | hex | |
6afd6fae | 179 | default 0xffff0000 if MMU || CPU_HIGH_VECTOR |
c760fc19 HC |
180 | default DRAM_BASE if REMAP_VECTORS_TO_RAM |
181 | default 0x00000000 | |
182 | help | |
183 | The base address of exception vectors. | |
184 | ||
1da177e4 LT |
185 | source "init/Kconfig" |
186 | ||
dc52ddc0 MH |
187 | source "kernel/Kconfig.freezer" |
188 | ||
1da177e4 LT |
189 | menu "System Type" |
190 | ||
191 | choice | |
192 | prompt "ARM system type" | |
6a0e2430 | 193 | default ARCH_VERSATILE |
1da177e4 | 194 | |
4af6fee1 DS |
195 | config ARCH_AAEC2000 |
196 | bool "Agilent AAEC-2000 based" | |
c750815e | 197 | select CPU_ARM920T |
4af6fee1 | 198 | select ARM_AMBA |
9483a578 | 199 | select HAVE_CLK |
4af6fee1 DS |
200 | help |
201 | This enables support for systems based on the Agilent AAEC-2000 | |
202 | ||
203 | config ARCH_INTEGRATOR | |
204 | bool "ARM Ltd. Integrator family" | |
205 | select ARM_AMBA | |
9483a578 | 206 | select HAVE_CLK |
d72fbdf0 | 207 | select COMMON_CLKDEV |
4af6fee1 DS |
208 | select ICST525 |
209 | help | |
210 | Support for ARM's Integrator platform. | |
211 | ||
212 | config ARCH_REALVIEW | |
213 | bool "ARM Ltd. RealView family" | |
214 | select ARM_AMBA | |
9483a578 | 215 | select HAVE_CLK |
cf30fb4a | 216 | select COMMON_CLKDEV |
4af6fee1 | 217 | select ICST307 |
85802afe | 218 | select GENERIC_TIME |
ae30ceac | 219 | select GENERIC_CLOCKEVENTS |
eb7fffa3 | 220 | select ARCH_WANT_OPTIONAL_GPIOLIB |
4af6fee1 DS |
221 | help |
222 | This enables support for ARM Ltd RealView boards. | |
223 | ||
224 | config ARCH_VERSATILE | |
225 | bool "ARM Ltd. Versatile family" | |
226 | select ARM_AMBA | |
227 | select ARM_VIC | |
9483a578 | 228 | select HAVE_CLK |
71a06da0 | 229 | select COMMON_CLKDEV |
4af6fee1 | 230 | select ICST307 |
b49c87c2 | 231 | select GENERIC_TIME |
89df1272 | 232 | select GENERIC_CLOCKEVENTS |
bbeddc43 | 233 | select ARCH_WANT_OPTIONAL_GPIOLIB |
4af6fee1 DS |
234 | help |
235 | This enables support for ARM Ltd Versatile board. | |
236 | ||
8fc5ffa0 AV |
237 | config ARCH_AT91 |
238 | bool "Atmel AT91" | |
0a938b97 | 239 | select GENERIC_GPIO |
f373e8c0 | 240 | select ARCH_REQUIRE_GPIOLIB |
93686ae8 | 241 | select HAVE_CLK |
4af6fee1 | 242 | help |
2b3b3516 AV |
243 | This enables support for systems based on the Atmel AT91RM9200, |
244 | AT91SAM9 and AT91CAP9 processors. | |
4af6fee1 | 245 | |
1da177e4 | 246 | config ARCH_CLPS711X |
4af6fee1 | 247 | bool "Cirrus Logic CLPS711x/EP721x-based" |
c750815e | 248 | select CPU_ARM720T |
f999b8bd MM |
249 | help |
250 | Support for Cirrus Logic 711x/721x based boards. | |
1da177e4 | 251 | |
788c9700 RK |
252 | config ARCH_GEMINI |
253 | bool "Cortina Systems Gemini" | |
254 | select CPU_FA526 | |
255 | select GENERIC_GPIO | |
256 | select ARCH_REQUIRE_GPIOLIB | |
257 | help | |
258 | Support for the Cortina Systems Gemini family SoCs | |
259 | ||
1da177e4 LT |
260 | config ARCH_EBSA110 |
261 | bool "EBSA-110" | |
c750815e | 262 | select CPU_SA110 |
f7e68bbf | 263 | select ISA |
c5eb2a2b | 264 | select NO_IOPORT |
1da177e4 LT |
265 | help |
266 | This is an evaluation board for the StrongARM processor available | |
f6c8965a | 267 | from Digital. It has limited hardware on-board, including an |
1da177e4 LT |
268 | Ethernet interface, two PCMCIA sockets, two serial ports and a |
269 | parallel port. | |
270 | ||
e7736d47 LB |
271 | config ARCH_EP93XX |
272 | bool "EP93xx-based" | |
c750815e | 273 | select CPU_ARM920T |
e7736d47 LB |
274 | select ARM_AMBA |
275 | select ARM_VIC | |
4e9f9fd5 | 276 | select GENERIC_GPIO |
9483a578 | 277 | select HAVE_CLK |
ae696fd5 | 278 | select COMMON_CLKDEV |
7444a72e | 279 | select ARCH_REQUIRE_GPIOLIB |
eb33575c | 280 | select ARCH_HAS_HOLES_MEMORYMODEL |
e7736d47 LB |
281 | help |
282 | This enables support for the Cirrus EP93xx series of CPUs. | |
283 | ||
1da177e4 LT |
284 | config ARCH_FOOTBRIDGE |
285 | bool "FootBridge" | |
c750815e | 286 | select CPU_SA110 |
1da177e4 | 287 | select FOOTBRIDGE |
f999b8bd MM |
288 | help |
289 | Support for systems based on the DC21285 companion chip | |
290 | ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder. | |
1da177e4 | 291 | |
788c9700 RK |
292 | config ARCH_MXC |
293 | bool "Freescale MXC/iMX-based" | |
294 | select GENERIC_TIME | |
295 | select GENERIC_CLOCKEVENTS | |
296 | select ARCH_MTD_XIP | |
297 | select GENERIC_GPIO | |
298 | select ARCH_REQUIRE_GPIOLIB | |
a2ab67fa | 299 | select HAVE_CLK |
788c9700 RK |
300 | help |
301 | Support for Freescale MXC/iMX-based family of processors | |
302 | ||
7bd0f2f5 | 303 | config ARCH_STMP3XXX |
304 | bool "Freescale STMP3xxx" | |
305 | select CPU_ARM926T | |
306 | select HAVE_CLK | |
307 | select COMMON_CLKDEV | |
308 | select ARCH_REQUIRE_GPIOLIB | |
309 | select GENERIC_TIME | |
310 | select GENERIC_CLOCKEVENTS | |
311 | select GENERIC_GPIO | |
312 | select USB_ARCH_HAS_EHCI | |
313 | help | |
314 | Support for systems based on the Freescale 3xxx CPUs. | |
315 | ||
4af6fee1 DS |
316 | config ARCH_NETX |
317 | bool "Hilscher NetX based" | |
c750815e | 318 | select CPU_ARM926T |
4af6fee1 | 319 | select ARM_VIC |
2fcfe6b8 | 320 | select GENERIC_CLOCKEVENTS |
21edecd3 | 321 | select GENERIC_TIME |
f999b8bd | 322 | help |
4af6fee1 DS |
323 | This enables support for systems based on the Hilscher NetX Soc |
324 | ||
325 | config ARCH_H720X | |
326 | bool "Hynix HMS720x-based" | |
c750815e | 327 | select CPU_ARM720T |
4af6fee1 DS |
328 | select ISA_DMA_API |
329 | help | |
330 | This enables support for systems based on the Hynix HMS720x | |
331 | ||
3b938be6 RK |
332 | config ARCH_IOP13XX |
333 | bool "IOP13xx-based" | |
334 | depends on MMU | |
c750815e | 335 | select CPU_XSC3 |
3b938be6 RK |
336 | select PLAT_IOP |
337 | select PCI | |
338 | select ARCH_SUPPORTS_MSI | |
8d5796d2 | 339 | select VMSPLIT_1G |
3b938be6 RK |
340 | help |
341 | Support for Intel's IOP13XX (XScale) family of processors. | |
342 | ||
3f7e5815 LB |
343 | config ARCH_IOP32X |
344 | bool "IOP32x-based" | |
a4f7e763 | 345 | depends on MMU |
c750815e | 346 | select CPU_XSCALE |
7ae1f7ec | 347 | select PLAT_IOP |
f7e68bbf | 348 | select PCI |
63f385cd | 349 | select GENERIC_GPIO |
bb2b180c | 350 | select ARCH_REQUIRE_GPIOLIB |
f999b8bd | 351 | help |
3f7e5815 LB |
352 | Support for Intel's 80219 and IOP32X (XScale) family of |
353 | processors. | |
354 | ||
355 | config ARCH_IOP33X | |
356 | bool "IOP33x-based" | |
357 | depends on MMU | |
c750815e | 358 | select CPU_XSCALE |
7ae1f7ec | 359 | select PLAT_IOP |
3f7e5815 | 360 | select PCI |
63f385cd | 361 | select GENERIC_GPIO |
bb2b180c | 362 | select ARCH_REQUIRE_GPIOLIB |
3f7e5815 LB |
363 | help |
364 | Support for Intel's IOP33X (XScale) family of processors. | |
1da177e4 | 365 | |
3b938be6 RK |
366 | config ARCH_IXP23XX |
367 | bool "IXP23XX-based" | |
a4f7e763 | 368 | depends on MMU |
c750815e | 369 | select CPU_XSC3 |
3b938be6 | 370 | select PCI |
f999b8bd | 371 | help |
3b938be6 | 372 | Support for Intel's IXP23xx (XScale) family of processors. |
1da177e4 LT |
373 | |
374 | config ARCH_IXP2000 | |
375 | bool "IXP2400/2800-based" | |
a4f7e763 | 376 | depends on MMU |
c750815e | 377 | select CPU_XSCALE |
f7e68bbf | 378 | select PCI |
f999b8bd MM |
379 | help |
380 | Support for Intel's IXP2400/2800 (XScale) family of processors. | |
1da177e4 | 381 | |
3b938be6 RK |
382 | config ARCH_IXP4XX |
383 | bool "IXP4xx-based" | |
a4f7e763 | 384 | depends on MMU |
c750815e | 385 | select CPU_XSCALE |
8858e9af | 386 | select GENERIC_GPIO |
3b938be6 RK |
387 | select GENERIC_TIME |
388 | select GENERIC_CLOCKEVENTS | |
485bdde7 | 389 | select DMABOUNCE if PCI |
c4713074 | 390 | help |
3b938be6 | 391 | Support for Intel's IXP4XX (XScale) family of processors. |
c4713074 | 392 | |
1da177e4 LT |
393 | config ARCH_L7200 |
394 | bool "LinkUp-L7200" | |
c750815e | 395 | select CPU_ARM720T |
1da177e4 LT |
396 | select FIQ |
397 | help | |
398 | Say Y here if you intend to run this kernel on a LinkUp Systems | |
399 | L7200 Software Development Board which uses an ARM720T processor. | |
400 | Information on this board can be obtained at: | |
401 | ||
402 | <http://www.linkupsys.com/> | |
403 | ||
404 | If you have any questions or comments about the Linux kernel port | |
405 | to this board, send e-mail to <sjhill@cotw.com>. | |
406 | ||
651c74c7 SB |
407 | config ARCH_KIRKWOOD |
408 | bool "Marvell Kirkwood" | |
c750815e | 409 | select CPU_FEROCEON |
651c74c7 | 410 | select PCI |
4c213430 | 411 | select GENERIC_GPIO |
a8865655 | 412 | select ARCH_REQUIRE_GPIOLIB |
651c74c7 SB |
413 | select GENERIC_TIME |
414 | select GENERIC_CLOCKEVENTS | |
415 | select PLAT_ORION | |
416 | help | |
417 | Support for the following Marvell Kirkwood series SoCs: | |
418 | 88F6180, 88F6192 and 88F6281. | |
419 | ||
777f9beb LB |
420 | config ARCH_LOKI |
421 | bool "Marvell Loki (88RC8480)" | |
c750815e | 422 | select CPU_FEROCEON |
777f9beb LB |
423 | select GENERIC_TIME |
424 | select GENERIC_CLOCKEVENTS | |
425 | select PLAT_ORION | |
426 | help | |
427 | Support for the Marvell Loki (88RC8480) SoC. | |
428 | ||
794d15b2 SS |
429 | config ARCH_MV78XX0 |
430 | bool "Marvell MV78xx0" | |
c750815e | 431 | select CPU_FEROCEON |
794d15b2 | 432 | select PCI |
b95a13d7 | 433 | select GENERIC_GPIO |
a8865655 | 434 | select ARCH_REQUIRE_GPIOLIB |
794d15b2 SS |
435 | select GENERIC_TIME |
436 | select GENERIC_CLOCKEVENTS | |
437 | select PLAT_ORION | |
438 | help | |
439 | Support for the following Marvell MV78xx0 series SoCs: | |
440 | MV781x0, MV782x0. | |
441 | ||
9dd0b194 | 442 | config ARCH_ORION5X |
585cf175 TP |
443 | bool "Marvell Orion" |
444 | depends on MMU | |
c750815e | 445 | select CPU_FEROCEON |
038ee083 | 446 | select PCI |
01af72e4 | 447 | select GENERIC_GPIO |
a8865655 | 448 | select ARCH_REQUIRE_GPIOLIB |
51cbff1d TP |
449 | select GENERIC_TIME |
450 | select GENERIC_CLOCKEVENTS | |
69b02f6a | 451 | select PLAT_ORION |
585cf175 | 452 | help |
9dd0b194 | 453 | Support for the following Marvell Orion 5x series SoCs: |
d2b2a6bb | 454 | Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182), |
d323ade1 | 455 | Orion-2 (5281), Orion-1-90 (6183). |
585cf175 | 456 | |
788c9700 RK |
457 | config ARCH_MMP |
458 | bool "Marvell PXA168/910" | |
459 | depends on MMU | |
460 | select GENERIC_GPIO | |
461 | select ARCH_REQUIRE_GPIOLIB | |
462 | select HAVE_CLK | |
463 | select COMMON_CLKDEV | |
464 | select GENERIC_TIME | |
465 | select GENERIC_CLOCKEVENTS | |
466 | select TICK_ONESHOT | |
467 | select PLAT_PXA | |
468 | help | |
469 | Support for Marvell's PXA168/910 processor line. | |
470 | ||
471 | config ARCH_KS8695 | |
472 | bool "Micrel/Kendin KS8695" | |
473 | select CPU_ARM922T | |
474 | select GENERIC_GPIO | |
475 | select ARCH_REQUIRE_GPIOLIB | |
476 | help | |
477 | Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based | |
478 | System-on-Chip devices. | |
479 | ||
480 | config ARCH_NS9XXX | |
481 | bool "NetSilicon NS9xxx" | |
482 | select CPU_ARM926T | |
483 | select GENERIC_GPIO | |
484 | select GENERIC_TIME | |
485 | select GENERIC_CLOCKEVENTS | |
486 | select HAVE_CLK | |
487 | help | |
488 | Say Y here if you intend to run this kernel on a NetSilicon NS9xxx | |
489 | System. | |
490 | ||
491 | <http://www.digi.com/products/microprocessors/index.jsp> | |
492 | ||
493 | config ARCH_W90X900 | |
494 | bool "Nuvoton W90X900 CPU" | |
495 | select CPU_ARM926T | |
c52d3d68 | 496 | select ARCH_REQUIRE_GPIOLIB |
497 | select GENERIC_GPIO | |
0e4a34bb | 498 | select COMMON_CLKDEV |
788c9700 RK |
499 | help |
500 | Support for Nuvoton (Winbond logic dept.) ARM9 processor,You | |
501 | can login www.mcuos.com or www.nuvoton.com to know more. | |
502 | ||
4af6fee1 DS |
503 | config ARCH_PNX4008 |
504 | bool "Philips Nexperia PNX4008 Mobile" | |
c750815e | 505 | select CPU_ARM926T |
9483a578 | 506 | select HAVE_CLK |
4af6fee1 DS |
507 | help |
508 | This enables support for Philips PNX4008 mobile platform. | |
509 | ||
1da177e4 | 510 | config ARCH_PXA |
2c8086a5 | 511 | bool "PXA2xx/PXA3xx-based" |
a4f7e763 | 512 | depends on MMU |
034d2f5a | 513 | select ARCH_MTD_XIP |
0a938b97 | 514 | select GENERIC_GPIO |
9483a578 | 515 | select HAVE_CLK |
8c3abc7d | 516 | select COMMON_CLKDEV |
7444a72e | 517 | select ARCH_REQUIRE_GPIOLIB |
45cf5eef | 518 | select GENERIC_TIME |
981d0f39 | 519 | select GENERIC_CLOCKEVENTS |
a88264c2 | 520 | select TICK_ONESHOT |
bd5ce433 | 521 | select PLAT_PXA |
f999b8bd | 522 | help |
2c8086a5 | 523 | Support for Intel/Marvell's PXA2xx/PXA3xx processor line. |
1da177e4 | 524 | |
788c9700 RK |
525 | config ARCH_MSM |
526 | bool "Qualcomm MSM" | |
527 | select CPU_V6 | |
49cbe786 EM |
528 | select GENERIC_TIME |
529 | select GENERIC_CLOCKEVENTS | |
49cbe786 | 530 | help |
788c9700 RK |
531 | Support for Qualcomm MSM7K based systems. This runs on the ARM11 |
532 | apps processor of the MSM7K and depends on a shared memory | |
533 | interface to the ARM9 modem processor which runs the baseband stack | |
534 | and controls some vital subsystems (clock and power control, etc). | |
49cbe786 | 535 | |
1da177e4 LT |
536 | config ARCH_RPC |
537 | bool "RiscPC" | |
538 | select ARCH_ACORN | |
539 | select FIQ | |
540 | select TIMER_ACORN | |
a08b6b79 | 541 | select ARCH_MAY_HAVE_PC_FDC |
341eb781 | 542 | select HAVE_PATA_PLATFORM |
065909b9 | 543 | select ISA_DMA_API |
5ea81769 | 544 | select NO_IOPORT |
07f841b7 | 545 | select ARCH_SPARSEMEM_ENABLE |
1da177e4 LT |
546 | help |
547 | On the Acorn Risc-PC, Linux can support the internal IDE disk and | |
548 | CD-ROM interface, serial and parallel port, and the floppy drive. | |
549 | ||
550 | config ARCH_SA1100 | |
551 | bool "SA1100-based" | |
c750815e | 552 | select CPU_SA1100 |
f7e68bbf | 553 | select ISA |
05944d74 | 554 | select ARCH_SPARSEMEM_ENABLE |
034d2f5a | 555 | select ARCH_MTD_XIP |
0a938b97 | 556 | select GENERIC_GPIO |
d142b6e7 | 557 | select GENERIC_TIME |
3e238be2 | 558 | select GENERIC_CLOCKEVENTS |
9483a578 | 559 | select HAVE_CLK |
3e238be2 | 560 | select TICK_ONESHOT |
7444a72e | 561 | select ARCH_REQUIRE_GPIOLIB |
f999b8bd MM |
562 | help |
563 | Support for StrongARM 11x0 based boards. | |
1da177e4 LT |
564 | |
565 | config ARCH_S3C2410 | |
e4d06e39 | 566 | bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443" |
0a938b97 | 567 | select GENERIC_GPIO |
9483a578 | 568 | select HAVE_CLK |
1da177e4 LT |
569 | help |
570 | Samsung S3C2410X CPU based systems, such as the Simtec Electronics | |
571 | BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or | |
f6c8965a | 572 | the Samsung SMDK2410 development board (and derivatives). |
1da177e4 | 573 | |
a08ab637 BD |
574 | config ARCH_S3C64XX |
575 | bool "Samsung S3C64XX" | |
576 | select GENERIC_GPIO | |
577 | select HAVE_CLK | |
578 | help | |
579 | Samsung S3C64XX series based systems | |
580 | ||
1da177e4 LT |
581 | config ARCH_SHARK |
582 | bool "Shark" | |
c750815e | 583 | select CPU_SA110 |
f7e68bbf RK |
584 | select ISA |
585 | select ISA_DMA | |
3bca103a | 586 | select ZONE_DMA |
f7e68bbf | 587 | select PCI |
f999b8bd MM |
588 | help |
589 | Support for the StrongARM based Digital DNARD machine, also known | |
590 | as "Shark" (<http://www.shark-linux.de/shark.html>). | |
1da177e4 LT |
591 | |
592 | config ARCH_LH7A40X | |
593 | bool "Sharp LH7A40X" | |
c750815e | 594 | select CPU_ARM922T |
4ba3f7c5 RK |
595 | select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM |
596 | select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM | |
1da177e4 LT |
597 | help |
598 | Say Y here for systems based on one of the Sharp LH7A40X | |
599 | System on a Chip processors. These CPUs include an ARM922T | |
600 | core with a wide array of integrated devices for | |
601 | hand-held and low-power applications. | |
602 | ||
d98aac75 LW |
603 | config ARCH_U300 |
604 | bool "ST-Ericsson U300 Series" | |
605 | depends on MMU | |
606 | select CPU_ARM926T | |
607 | select ARM_AMBA | |
608 | select ARM_VIC | |
609 | select GENERIC_TIME | |
610 | select GENERIC_CLOCKEVENTS | |
611 | select HAVE_CLK | |
612 | select COMMON_CLKDEV | |
613 | select GENERIC_GPIO | |
614 | help | |
615 | Support for ST-Ericsson U300 series mobile platforms. | |
616 | ||
7c6337e2 KH |
617 | config ARCH_DAVINCI |
618 | bool "TI DaVinci" | |
c750815e | 619 | select CPU_ARM926T |
7c6337e2 KH |
620 | select GENERIC_TIME |
621 | select GENERIC_CLOCKEVENTS | |
3d9edf09 | 622 | select GENERIC_GPIO |
dce1115b | 623 | select ARCH_REQUIRE_GPIOLIB |
9483a578 | 624 | select HAVE_CLK |
3bca103a | 625 | select ZONE_DMA |
9232fcc9 | 626 | select HAVE_IDE |
c5b736d0 | 627 | select COMMON_CLKDEV |
20e9969b | 628 | select GENERIC_ALLOCATOR |
7c6337e2 KH |
629 | help |
630 | Support for TI's DaVinci platform. | |
631 | ||
3b938be6 RK |
632 | config ARCH_OMAP |
633 | bool "TI OMAP" | |
634 | select GENERIC_GPIO | |
9483a578 | 635 | select HAVE_CLK |
7444a72e | 636 | select ARCH_REQUIRE_GPIOLIB |
3b938be6 | 637 | select GENERIC_TIME |
06cad098 | 638 | select GENERIC_CLOCKEVENTS |
3b938be6 RK |
639 | help |
640 | Support for TI's OMAP platform (OMAP1 and OMAP2). | |
641 | ||
1da177e4 LT |
642 | endchoice |
643 | ||
644 | source "arch/arm/mach-clps711x/Kconfig" | |
645 | ||
e7736d47 LB |
646 | source "arch/arm/mach-ep93xx/Kconfig" |
647 | ||
1da177e4 LT |
648 | source "arch/arm/mach-footbridge/Kconfig" |
649 | ||
59d3a193 PZ |
650 | source "arch/arm/mach-gemini/Kconfig" |
651 | ||
1da177e4 LT |
652 | source "arch/arm/mach-integrator/Kconfig" |
653 | ||
3f7e5815 LB |
654 | source "arch/arm/mach-iop32x/Kconfig" |
655 | ||
656 | source "arch/arm/mach-iop33x/Kconfig" | |
1da177e4 | 657 | |
285f5fa7 DW |
658 | source "arch/arm/mach-iop13xx/Kconfig" |
659 | ||
1da177e4 LT |
660 | source "arch/arm/mach-ixp4xx/Kconfig" |
661 | ||
662 | source "arch/arm/mach-ixp2000/Kconfig" | |
663 | ||
c4713074 LB |
664 | source "arch/arm/mach-ixp23xx/Kconfig" |
665 | ||
777f9beb LB |
666 | source "arch/arm/mach-loki/Kconfig" |
667 | ||
794d15b2 SS |
668 | source "arch/arm/mach-mv78xx0/Kconfig" |
669 | ||
1da177e4 | 670 | source "arch/arm/mach-pxa/Kconfig" |
bd5ce433 | 671 | source "arch/arm/plat-pxa/Kconfig" |
1da177e4 | 672 | |
49cbe786 EM |
673 | source "arch/arm/mach-mmp/Kconfig" |
674 | ||
1da177e4 LT |
675 | source "arch/arm/mach-sa1100/Kconfig" |
676 | ||
d48af15e TL |
677 | source "arch/arm/plat-omap/Kconfig" |
678 | ||
679 | source "arch/arm/mach-omap1/Kconfig" | |
1da177e4 | 680 | |
1dbae815 TL |
681 | source "arch/arm/mach-omap2/Kconfig" |
682 | ||
9dd0b194 | 683 | source "arch/arm/mach-orion5x/Kconfig" |
585cf175 | 684 | |
651c74c7 | 685 | source "arch/arm/mach-kirkwood/Kconfig" |
585cf175 | 686 | |
a21765a7 | 687 | source "arch/arm/plat-s3c24xx/Kconfig" |
a08ab637 | 688 | source "arch/arm/plat-s3c64xx/Kconfig" |
d58153d8 | 689 | source "arch/arm/plat-s3c/Kconfig" |
a21765a7 BD |
690 | |
691 | if ARCH_S3C2410 | |
692 | source "arch/arm/mach-s3c2400/Kconfig" | |
1da177e4 | 693 | source "arch/arm/mach-s3c2410/Kconfig" |
a21765a7 BD |
694 | source "arch/arm/mach-s3c2412/Kconfig" |
695 | source "arch/arm/mach-s3c2440/Kconfig" | |
696 | source "arch/arm/mach-s3c2442/Kconfig" | |
e4d06e39 | 697 | source "arch/arm/mach-s3c2443/Kconfig" |
a21765a7 | 698 | endif |
1da177e4 | 699 | |
a08ab637 BD |
700 | if ARCH_S3C64XX |
701 | source "arch/arm/mach-s3c6400/Kconfig" | |
702 | source "arch/arm/mach-s3c6410/Kconfig" | |
703 | endif | |
704 | ||
7bd0f2f5 | 705 | source "arch/arm/plat-stmp3xxx/Kconfig" |
706 | ||
1da177e4 LT |
707 | source "arch/arm/mach-lh7a40x/Kconfig" |
708 | ||
1da177e4 LT |
709 | source "arch/arm/mach-h720x/Kconfig" |
710 | ||
711 | source "arch/arm/mach-versatile/Kconfig" | |
712 | ||
038c5b60 BN |
713 | source "arch/arm/mach-aaec2000/Kconfig" |
714 | ||
8ad68bbf CM |
715 | source "arch/arm/mach-realview/Kconfig" |
716 | ||
9d041268 | 717 | source "arch/arm/mach-at91/Kconfig" |
73a59c1c | 718 | |
52c543f9 QJ |
719 | source "arch/arm/plat-mxc/Kconfig" |
720 | ||
bb6d8c88 SH |
721 | source "arch/arm/mach-netx/Kconfig" |
722 | ||
9918cda5 UKK |
723 | source "arch/arm/mach-ns9xxx/Kconfig" |
724 | ||
7c6337e2 KH |
725 | source "arch/arm/mach-davinci/Kconfig" |
726 | ||
c53c9cf6 AV |
727 | source "arch/arm/mach-ks8695/Kconfig" |
728 | ||
9e73c84c BS |
729 | source "arch/arm/mach-msm/Kconfig" |
730 | ||
d98aac75 LW |
731 | source "arch/arm/mach-u300/Kconfig" |
732 | ||
7ec80ddf | 733 | source "arch/arm/mach-w90x900/Kconfig" |
734 | ||
1da177e4 LT |
735 | # Definitions to make life easier |
736 | config ARCH_ACORN | |
737 | bool | |
738 | ||
7ae1f7ec LB |
739 | config PLAT_IOP |
740 | bool | |
741 | ||
69b02f6a LB |
742 | config PLAT_ORION |
743 | bool | |
744 | ||
bd5ce433 EM |
745 | config PLAT_PXA |
746 | bool | |
747 | ||
1da177e4 LT |
748 | source arch/arm/mm/Kconfig |
749 | ||
afe4b25e LB |
750 | config IWMMXT |
751 | bool "Enable iWMMXt support" | |
40305a58 EM |
752 | depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK |
753 | default y if PXA27x || PXA3xx || ARCH_MMP | |
afe4b25e LB |
754 | help |
755 | Enable support for iWMMXt context switching at run time if | |
756 | running on a CPU that supports it. | |
757 | ||
1da177e4 LT |
758 | # bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER |
759 | config XSCALE_PMU | |
760 | bool | |
761 | depends on CPU_XSCALE && !XSCALE_PMU_TIMER | |
762 | default y | |
763 | ||
3b93e7b0 HC |
764 | if !MMU |
765 | source "arch/arm/Kconfig-nommu" | |
766 | endif | |
767 | ||
9cba3ccc CM |
768 | config ARM_ERRATA_411920 |
769 | bool "ARM errata: Invalidation of the Instruction Cache operation can fail" | |
770 | depends on CPU_V6 && !SMP | |
771 | help | |
772 | Invalidation of the Instruction Cache operation can | |
773 | fail. This erratum is present in 1136 (before r1p4), 1156 and 1176. | |
774 | It does not affect the MPCore. This option enables the ARM Ltd. | |
775 | recommended workaround. | |
776 | ||
7ce236fc CM |
777 | config ARM_ERRATA_430973 |
778 | bool "ARM errata: Stale prediction on replaced interworking branch" | |
779 | depends on CPU_V7 | |
780 | help | |
781 | This option enables the workaround for the 430973 Cortex-A8 | |
782 | (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb | |
783 | interworking branch is replaced with another code sequence at the | |
784 | same virtual address, whether due to self-modifying code or virtual | |
785 | to physical address re-mapping, Cortex-A8 does not recover from the | |
786 | stale interworking branch prediction. This results in Cortex-A8 | |
787 | executing the new code sequence in the incorrect ARM or Thumb state. | |
788 | The workaround enables the BTB/BTAC operations by setting ACTLR.IBE | |
789 | and also flushes the branch target cache at every context switch. | |
790 | Note that setting specific bits in the ACTLR register may not be | |
791 | available in non-secure mode. | |
792 | ||
855c551f CM |
793 | config ARM_ERRATA_458693 |
794 | bool "ARM errata: Processor deadlock when a false hazard is created" | |
795 | depends on CPU_V7 | |
796 | help | |
797 | This option enables the workaround for the 458693 Cortex-A8 (r2p0) | |
798 | erratum. For very specific sequences of memory operations, it is | |
799 | possible for a hazard condition intended for a cache line to instead | |
800 | be incorrectly associated with a different cache line. This false | |
801 | hazard might then cause a processor deadlock. The workaround enables | |
802 | the L1 caching of the NEON accesses and disables the PLD instruction | |
803 | in the ACTLR register. Note that setting specific bits in the ACTLR | |
804 | register may not be available in non-secure mode. | |
805 | ||
0516e464 CM |
806 | config ARM_ERRATA_460075 |
807 | bool "ARM errata: Data written to the L2 cache can be overwritten with stale data" | |
808 | depends on CPU_V7 | |
809 | help | |
810 | This option enables the workaround for the 460075 Cortex-A8 (r2p0) | |
811 | erratum. Any asynchronous access to the L2 cache may encounter a | |
812 | situation in which recent store transactions to the L2 cache are lost | |
813 | and overwritten with stale memory contents from external memory. The | |
814 | workaround disables the write-allocate mode for the L2 cache via the | |
815 | ACTLR register. Note that setting specific bits in the ACTLR register | |
816 | may not be available in non-secure mode. | |
817 | ||
1da177e4 LT |
818 | endmenu |
819 | ||
820 | source "arch/arm/common/Kconfig" | |
821 | ||
822 | config FORCE_MAX_ZONEORDER | |
823 | int | |
824 | depends on SA1111 | |
825 | default "9" | |
826 | ||
827 | menu "Bus support" | |
828 | ||
829 | config ARM_AMBA | |
830 | bool | |
831 | ||
832 | config ISA | |
833 | bool | |
1da177e4 LT |
834 | help |
835 | Find out whether you have ISA slots on your motherboard. ISA is the | |
836 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
837 | inside your box. Other bus systems are PCI, EISA, MicroChannel | |
838 | (MCA) or VESA. ISA is an older system, now being displaced by PCI; | |
839 | newer boards don't support it. If you have ISA, say Y, otherwise N. | |
840 | ||
065909b9 | 841 | # Select ISA DMA controller support |
1da177e4 LT |
842 | config ISA_DMA |
843 | bool | |
065909b9 | 844 | select ISA_DMA_API |
1da177e4 | 845 | |
065909b9 | 846 | # Select ISA DMA interface |
5cae841b AV |
847 | config ISA_DMA_API |
848 | bool | |
5cae841b | 849 | |
1da177e4 | 850 | config PCI |
a0113a99 | 851 | bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE |
1da177e4 LT |
852 | help |
853 | Find out whether you have a PCI motherboard. PCI is the name of a | |
854 | bus system, i.e. the way the CPU talks to the other stuff inside | |
855 | your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or | |
856 | VESA. If you have PCI, say Y, otherwise N. | |
857 | ||
36e23590 MW |
858 | config PCI_SYSCALL |
859 | def_bool PCI | |
860 | ||
1da177e4 LT |
861 | # Select the host bridge type |
862 | config PCI_HOST_VIA82C505 | |
863 | bool | |
864 | depends on PCI && ARCH_SHARK | |
865 | default y | |
866 | ||
a0113a99 MR |
867 | config PCI_HOST_ITE8152 |
868 | bool | |
869 | depends on PCI && MACH_ARMCORE | |
870 | default y | |
871 | select DMABOUNCE | |
872 | ||
1da177e4 LT |
873 | source "drivers/pci/Kconfig" |
874 | ||
875 | source "drivers/pcmcia/Kconfig" | |
876 | ||
877 | endmenu | |
878 | ||
879 | menu "Kernel Features" | |
880 | ||
0567a0c0 KH |
881 | source "kernel/time/Kconfig" |
882 | ||
1da177e4 LT |
883 | config SMP |
884 | bool "Symmetric Multi-Processing (EXPERIMENTAL)" | |
42578c82 RK |
885 | depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\ |
886 | MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4) | |
bc28248e | 887 | depends on GENERIC_CLOCKEVENTS |
f6dd9fa5 | 888 | select USE_GENERIC_SMP_HELPERS |
934f8be7 | 889 | select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4) |
1da177e4 LT |
890 | help |
891 | This enables support for systems with more than one CPU. If you have | |
892 | a system with only one CPU, like most personal computers, say N. If | |
893 | you have a system with more than one CPU, say Y. | |
894 | ||
895 | If you say N here, the kernel will run on single and multiprocessor | |
896 | machines, but will use only one CPU of a multiprocessor machine. If | |
897 | you say Y here, the kernel will run on many, but not all, single | |
898 | processor machines. On a single processor machine, the kernel will | |
899 | run faster if you say N here. | |
900 | ||
03502faa | 901 | See also <file:Documentation/i386/IO-APIC.txt>, |
1da177e4 LT |
902 | <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at |
903 | <http://www.linuxdoc.org/docs.html#howto>. | |
904 | ||
905 | If you don't know what to do here, say N. | |
906 | ||
a8cbcd92 RK |
907 | config HAVE_ARM_SCU |
908 | bool | |
909 | depends on SMP | |
910 | help | |
911 | This option enables support for the ARM system coherency unit | |
912 | ||
f32f4ce2 RK |
913 | config HAVE_ARM_TWD |
914 | bool | |
915 | depends on SMP | |
916 | help | |
917 | This options enables support for the ARM timer and watchdog unit | |
918 | ||
8d5796d2 LB |
919 | choice |
920 | prompt "Memory split" | |
921 | default VMSPLIT_3G | |
922 | help | |
923 | Select the desired split between kernel and user memory. | |
924 | ||
925 | If you are not absolutely sure what you are doing, leave this | |
926 | option alone! | |
927 | ||
928 | config VMSPLIT_3G | |
929 | bool "3G/1G user/kernel split" | |
930 | config VMSPLIT_2G | |
931 | bool "2G/2G user/kernel split" | |
932 | config VMSPLIT_1G | |
933 | bool "1G/3G user/kernel split" | |
934 | endchoice | |
935 | ||
936 | config PAGE_OFFSET | |
937 | hex | |
938 | default 0x40000000 if VMSPLIT_1G | |
939 | default 0x80000000 if VMSPLIT_2G | |
940 | default 0xC0000000 | |
941 | ||
1da177e4 LT |
942 | config NR_CPUS |
943 | int "Maximum number of CPUs (2-32)" | |
944 | range 2 32 | |
945 | depends on SMP | |
946 | default "4" | |
947 | ||
a054a811 RK |
948 | config HOTPLUG_CPU |
949 | bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" | |
950 | depends on SMP && HOTPLUG && EXPERIMENTAL | |
951 | help | |
952 | Say Y here to experiment with turning CPUs off and on. CPUs | |
953 | can be controlled through /sys/devices/system/cpu. | |
954 | ||
37ee16ae RK |
955 | config LOCAL_TIMERS |
956 | bool "Use local timer interrupts" | |
42578c82 RK |
957 | depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \ |
958 | REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4) | |
37ee16ae | 959 | default y |
934f8be7 | 960 | select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4) |
37ee16ae RK |
961 | help |
962 | Enable support for local timers on SMP platforms, rather then the | |
963 | legacy IPI broadcast method. Local timers allows the system | |
964 | accounting to be spread across the timer interval, preventing a | |
965 | "thundering herd" at every timer tick. | |
966 | ||
1da177e4 LT |
967 | config PREEMPT |
968 | bool "Preemptible Kernel (EXPERIMENTAL)" | |
969 | depends on EXPERIMENTAL | |
970 | help | |
971 | This option reduces the latency of the kernel when reacting to | |
972 | real-time or interactive events by allowing a low priority process to | |
973 | be preempted even if it is in kernel mode executing a system call. | |
974 | This allows applications to run more reliably even when the system is | |
975 | under load. | |
976 | ||
977 | Say Y here if you are building a kernel for a desktop, embedded | |
978 | or real-time system. Say N if you are unsure. | |
979 | ||
f8065813 RK |
980 | config HZ |
981 | int | |
982 | default 128 if ARCH_L7200 | |
983 | default 200 if ARCH_EBSA110 || ARCH_S3C2410 | |
bfe65704 | 984 | default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER |
5248c657 | 985 | default AT91_TIMER_HZ if ARCH_AT91 |
f8065813 RK |
986 | default 100 |
987 | ||
704bdda0 NP |
988 | config AEABI |
989 | bool "Use the ARM EABI to compile the kernel" | |
990 | help | |
991 | This option allows for the kernel to be compiled using the latest | |
992 | ARM ABI (aka EABI). This is only useful if you are using a user | |
993 | space environment that is also compiled with EABI. | |
994 | ||
995 | Since there are major incompatibilities between the legacy ABI and | |
996 | EABI, especially with regard to structure member alignment, this | |
997 | option also changes the kernel syscall calling convention to | |
998 | disambiguate both ABIs and allow for backward compatibility support | |
999 | (selected with CONFIG_OABI_COMPAT). | |
1000 | ||
1001 | To use this you need GCC version 4.0.0 or later. | |
1002 | ||
6c90c872 | 1003 | config OABI_COMPAT |
a73a3ff1 | 1004 | bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)" |
61c484d4 | 1005 | depends on AEABI && EXPERIMENTAL |
6c90c872 NP |
1006 | default y |
1007 | help | |
1008 | This option preserves the old syscall interface along with the | |
1009 | new (ARM EABI) one. It also provides a compatibility layer to | |
1010 | intercept syscalls that have structure arguments which layout | |
1011 | in memory differs between the legacy ABI and the new ARM EABI | |
1012 | (only for non "thumb" binaries). This option adds a tiny | |
1013 | overhead to all syscalls and produces a slightly larger kernel. | |
1014 | If you know you'll be using only pure EABI user space then you | |
1015 | can say N here. If this option is not selected and you attempt | |
1016 | to execute a legacy ABI binary then the result will be | |
1017 | UNPREDICTABLE (in fact it can be predicted that it won't work | |
1018 | at all). If in doubt say Y. | |
1019 | ||
eb33575c | 1020 | config ARCH_HAS_HOLES_MEMORYMODEL |
e80d6a24 | 1021 | bool |
e80d6a24 | 1022 | |
07a2f737 | 1023 | # Discontigmem is deprecated |
3f22ab27 | 1024 | config ARCH_DISCONTIGMEM_ENABLE |
1da177e4 | 1025 | bool |
1da177e4 | 1026 | |
05944d74 RK |
1027 | config ARCH_SPARSEMEM_ENABLE |
1028 | bool | |
1029 | ||
07a2f737 RK |
1030 | config ARCH_SPARSEMEM_DEFAULT |
1031 | def_bool ARCH_SPARSEMEM_ENABLE | |
1032 | ||
05944d74 | 1033 | config ARCH_SELECT_MEMORY_MODEL |
07a2f737 | 1034 | def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE |
05944d74 | 1035 | |
c80d79d7 YG |
1036 | config NODES_SHIFT |
1037 | int | |
1038 | default "4" if ARCH_LH7A40X | |
1039 | default "2" | |
1040 | depends on NEED_MULTIPLE_NODES | |
1041 | ||
053a96ca NP |
1042 | config HIGHMEM |
1043 | bool "High Memory Support (EXPERIMENTAL)" | |
1044 | depends on MMU && EXPERIMENTAL | |
1045 | help | |
1046 | The address space of ARM processors is only 4 Gigabytes large | |
1047 | and it has to accommodate user address space, kernel address | |
1048 | space as well as some memory mapped IO. That means that, if you | |
1049 | have a large amount of physical memory and/or IO, not all of the | |
1050 | memory can be "permanently mapped" by the kernel. The physical | |
1051 | memory that is not permanently mapped is called "high memory". | |
1052 | ||
1053 | Depending on the selected kernel/user memory split, minimum | |
1054 | vmalloc space and actual amount of RAM, you may not need this | |
1055 | option which should result in a slightly faster kernel. | |
1056 | ||
1057 | If unsure, say n. | |
1058 | ||
3f22ab27 DH |
1059 | source "mm/Kconfig" |
1060 | ||
1da177e4 LT |
1061 | config LEDS |
1062 | bool "Timer and CPU usage LEDs" | |
e055d5bf | 1063 | depends on ARCH_CDB89712 || ARCH_EBSA110 || \ |
8c8fdbc9 | 1064 | ARCH_EBSA285 || ARCH_INTEGRATOR || \ |
1da177e4 LT |
1065 | ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \ |
1066 | ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \ | |
73a59c1c | 1067 | ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \ |
25329671 | 1068 | ARCH_AT91 || ARCH_DAVINCI || \ |
ff3042fb | 1069 | ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW |
1da177e4 LT |
1070 | help |
1071 | If you say Y here, the LEDs on your machine will be used | |
1072 | to provide useful information about your current system status. | |
1073 | ||
1074 | If you are compiling a kernel for a NetWinder or EBSA-285, you will | |
1075 | be able to select which LEDs are active using the options below. If | |
1076 | you are compiling a kernel for the EBSA-110 or the LART however, the | |
1077 | red LED will simply flash regularly to indicate that the system is | |
1078 | still functional. It is safe to say Y here if you have a CATS | |
1079 | system, but the driver will do nothing. | |
1080 | ||
1081 | config LEDS_TIMER | |
1082 | bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \ | |
eebdf7d7 DB |
1083 | OMAP_OSK_MISTRAL || MACH_OMAP_H2 \ |
1084 | || MACH_OMAP_PERSEUS2 | |
1da177e4 | 1085 | depends on LEDS |
0567a0c0 | 1086 | depends on !GENERIC_CLOCKEVENTS |
1da177e4 LT |
1087 | default y if ARCH_EBSA110 |
1088 | help | |
1089 | If you say Y here, one of the system LEDs (the green one on the | |
1090 | NetWinder, the amber one on the EBSA285, or the red one on the LART) | |
1091 | will flash regularly to indicate that the system is still | |
1092 | operational. This is mainly useful to kernel hackers who are | |
1093 | debugging unstable kernels. | |
1094 | ||
1095 | The LART uses the same LED for both Timer LED and CPU usage LED | |
1096 | functions. You may choose to use both, but the Timer LED function | |
1097 | will overrule the CPU usage LED. | |
1098 | ||
1099 | config LEDS_CPU | |
1100 | bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \ | |
eebdf7d7 DB |
1101 | !ARCH_OMAP) \ |
1102 | || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \ | |
1103 | || MACH_OMAP_PERSEUS2 | |
1da177e4 LT |
1104 | depends on LEDS |
1105 | help | |
1106 | If you say Y here, the red LED will be used to give a good real | |
1107 | time indication of CPU usage, by lighting whenever the idle task | |
1108 | is not currently executing. | |
1109 | ||
1110 | The LART uses the same LED for both Timer LED and CPU usage LED | |
1111 | functions. You may choose to use both, but the Timer LED function | |
1112 | will overrule the CPU usage LED. | |
1113 | ||
1114 | config ALIGNMENT_TRAP | |
1115 | bool | |
f12d0d7c | 1116 | depends on CPU_CP15_MMU |
1da177e4 LT |
1117 | default y if !ARCH_EBSA110 |
1118 | help | |
84eb8d06 | 1119 | ARM processors cannot fetch/store information which is not |
1da177e4 LT |
1120 | naturally aligned on the bus, i.e., a 4 byte fetch must start at an |
1121 | address divisible by 4. On 32-bit ARM processors, these non-aligned | |
1122 | fetch/store instructions will be emulated in software if you say | |
1123 | here, which has a severe performance impact. This is necessary for | |
1124 | correct operation of some network protocols. With an IP-only | |
1125 | configuration it is safe to say N, otherwise say Y. | |
1126 | ||
39ec58f3 LB |
1127 | config UACCESS_WITH_MEMCPY |
1128 | bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)" | |
1129 | depends on MMU && EXPERIMENTAL | |
1130 | default y if CPU_FEROCEON | |
1131 | help | |
1132 | Implement faster copy_to_user and clear_user methods for CPU | |
1133 | cores where a 8-word STM instruction give significantly higher | |
1134 | memory write throughput than a sequence of individual 32bit stores. | |
1135 | ||
1136 | A possible side effect is a slight increase in scheduling latency | |
1137 | between threads sharing the same address space if they invoke | |
1138 | such copy operations with large buffers. | |
1139 | ||
1140 | However, if the CPU data cache is using a write-allocate mode, | |
1141 | this option is unlikely to provide any performance gain. | |
1142 | ||
1da177e4 LT |
1143 | endmenu |
1144 | ||
1145 | menu "Boot options" | |
1146 | ||
1147 | # Compressed boot loader in ROM. Yes, we really want to ask about | |
1148 | # TEXT and BSS so we preserve their values in the config files. | |
1149 | config ZBOOT_ROM_TEXT | |
1150 | hex "Compressed ROM boot loader base address" | |
1151 | default "0" | |
1152 | help | |
1153 | The physical address at which the ROM-able zImage is to be | |
1154 | placed in the target. Platforms which normally make use of | |
1155 | ROM-able zImage formats normally set this to a suitable | |
1156 | value in their defconfig file. | |
1157 | ||
1158 | If ZBOOT_ROM is not enabled, this has no effect. | |
1159 | ||
1160 | config ZBOOT_ROM_BSS | |
1161 | hex "Compressed ROM boot loader BSS address" | |
1162 | default "0" | |
1163 | help | |
f8c440b2 DF |
1164 | The base address of an area of read/write memory in the target |
1165 | for the ROM-able zImage which must be available while the | |
1166 | decompressor is running. It must be large enough to hold the | |
1167 | entire decompressed kernel plus an additional 128 KiB. | |
1168 | Platforms which normally make use of ROM-able zImage formats | |
1169 | normally set this to a suitable value in their defconfig file. | |
1da177e4 LT |
1170 | |
1171 | If ZBOOT_ROM is not enabled, this has no effect. | |
1172 | ||
1173 | config ZBOOT_ROM | |
1174 | bool "Compressed boot loader in ROM/flash" | |
1175 | depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS | |
1176 | help | |
1177 | Say Y here if you intend to execute your compressed kernel image | |
1178 | (zImage) directly from ROM or flash. If unsure, say N. | |
1179 | ||
1180 | config CMDLINE | |
1181 | string "Default kernel command string" | |
1182 | default "" | |
1183 | help | |
1184 | On some architectures (EBSA110 and CATS), there is currently no way | |
1185 | for the boot loader to pass arguments to the kernel. For these | |
1186 | architectures, you should supply some command-line options at build | |
1187 | time by entering them here. As a minimum, you should specify the | |
1188 | memory size and the root device (e.g., mem=64M root=/dev/nfs). | |
1189 | ||
1190 | config XIP_KERNEL | |
1191 | bool "Kernel Execute-In-Place from ROM" | |
1192 | depends on !ZBOOT_ROM | |
1193 | help | |
1194 | Execute-In-Place allows the kernel to run from non-volatile storage | |
1195 | directly addressable by the CPU, such as NOR flash. This saves RAM | |
1196 | space since the text section of the kernel is not loaded from flash | |
1197 | to RAM. Read-write sections, such as the data section and stack, | |
1198 | are still copied to RAM. The XIP kernel is not compressed since | |
1199 | it has to run directly from flash, so it will take more space to | |
1200 | store it. The flash address used to link the kernel object files, | |
1201 | and for storing it, is configuration dependent. Therefore, if you | |
1202 | say Y here, you must know the proper physical address where to | |
1203 | store the kernel image depending on your own flash memory usage. | |
1204 | ||
1205 | Also note that the make target becomes "make xipImage" rather than | |
1206 | "make zImage" or "make Image". The final kernel binary to put in | |
1207 | ROM memory will be arch/arm/boot/xipImage. | |
1208 | ||
1209 | If unsure, say N. | |
1210 | ||
1211 | config XIP_PHYS_ADDR | |
1212 | hex "XIP Kernel Physical Location" | |
1213 | depends on XIP_KERNEL | |
1214 | default "0x00080000" | |
1215 | help | |
1216 | This is the physical address in your flash memory the kernel will | |
1217 | be linked for and stored to. This address is dependent on your | |
1218 | own flash usage. | |
1219 | ||
c587e4a6 RP |
1220 | config KEXEC |
1221 | bool "Kexec system call (EXPERIMENTAL)" | |
1222 | depends on EXPERIMENTAL | |
1223 | help | |
1224 | kexec is a system call that implements the ability to shutdown your | |
1225 | current kernel, and to start another kernel. It is like a reboot | |
01dd2fbf | 1226 | but it is independent of the system firmware. And like a reboot |
c587e4a6 RP |
1227 | you can start any kernel with it, not just Linux. |
1228 | ||
1229 | It is an ongoing process to be certain the hardware in a machine | |
1230 | is properly shutdown, so do not be surprised if this code does not | |
1231 | initially work for you. It may help to enable device hotplugging | |
1232 | support. | |
1233 | ||
4cd9d6f7 RP |
1234 | config ATAGS_PROC |
1235 | bool "Export atags in procfs" | |
b98d7291 UL |
1236 | depends on KEXEC |
1237 | default y | |
4cd9d6f7 RP |
1238 | help |
1239 | Should the atags used to boot the kernel be exported in an "atags" | |
1240 | file in procfs. Useful with kexec. | |
1241 | ||
1da177e4 LT |
1242 | endmenu |
1243 | ||
ac9d7efc | 1244 | menu "CPU Power Management" |
1da177e4 | 1245 | |
b3748ddd | 1246 | if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_PXA || ARCH_S3C64XX) |
1da177e4 LT |
1247 | |
1248 | source "drivers/cpufreq/Kconfig" | |
1249 | ||
1250 | config CPU_FREQ_SA1100 | |
1251 | bool | |
7bc35b56 | 1252 | depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT) |
1da177e4 LT |
1253 | default y |
1254 | ||
1255 | config CPU_FREQ_SA1110 | |
1256 | bool | |
1257 | depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3) | |
1258 | default y | |
1259 | ||
1260 | config CPU_FREQ_INTEGRATOR | |
1261 | tristate "CPUfreq driver for ARM Integrator CPUs" | |
1262 | depends on ARCH_INTEGRATOR && CPU_FREQ | |
1263 | default y | |
1264 | help | |
1265 | This enables the CPUfreq driver for ARM Integrator CPUs. | |
1266 | ||
1267 | For details, take a look at <file:Documentation/cpu-freq>. | |
1268 | ||
1269 | If in doubt, say Y. | |
1270 | ||
9e2697ff RK |
1271 | config CPU_FREQ_PXA |
1272 | bool | |
1273 | depends on CPU_FREQ && ARCH_PXA && PXA25x | |
1274 | default y | |
1275 | select CPU_FREQ_DEFAULT_GOV_USERSPACE | |
1276 | ||
b3748ddd MB |
1277 | config CPU_FREQ_S3C64XX |
1278 | bool "CPUfreq support for Samsung S3C64XX CPUs" | |
1279 | depends on CPU_FREQ && CPU_S3C6410 | |
1280 | ||
1da177e4 LT |
1281 | endif |
1282 | ||
ac9d7efc RK |
1283 | source "drivers/cpuidle/Kconfig" |
1284 | ||
1285 | endmenu | |
1286 | ||
1da177e4 LT |
1287 | menu "Floating point emulation" |
1288 | ||
1289 | comment "At least one emulation must be selected" | |
1290 | ||
1291 | config FPE_NWFPE | |
1292 | bool "NWFPE math emulation" | |
8993a44c | 1293 | depends on !AEABI || OABI_COMPAT |
1da177e4 LT |
1294 | ---help--- |
1295 | Say Y to include the NWFPE floating point emulator in the kernel. | |
1296 | This is necessary to run most binaries. Linux does not currently | |
1297 | support floating point hardware so you need to say Y here even if | |
1298 | your machine has an FPA or floating point co-processor podule. | |
1299 | ||
1300 | You may say N here if you are going to load the Acorn FPEmulator | |
1301 | early in the bootup. | |
1302 | ||
1303 | config FPE_NWFPE_XP | |
1304 | bool "Support extended precision" | |
bedf142b | 1305 | depends on FPE_NWFPE |
1da177e4 LT |
1306 | help |
1307 | Say Y to include 80-bit support in the kernel floating-point | |
1308 | emulator. Otherwise, only 32 and 64-bit support is compiled in. | |
1309 | Note that gcc does not generate 80-bit operations by default, | |
1310 | so in most cases this option only enlarges the size of the | |
1311 | floating point emulator without any good reason. | |
1312 | ||
1313 | You almost surely want to say N here. | |
1314 | ||
1315 | config FPE_FASTFPE | |
1316 | bool "FastFPE math emulation (EXPERIMENTAL)" | |
8993a44c | 1317 | depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL |
1da177e4 LT |
1318 | ---help--- |
1319 | Say Y here to include the FAST floating point emulator in the kernel. | |
1320 | This is an experimental much faster emulator which now also has full | |
1321 | precision for the mantissa. It does not support any exceptions. | |
1322 | It is very simple, and approximately 3-6 times faster than NWFPE. | |
1323 | ||
1324 | It should be sufficient for most programs. It may be not suitable | |
1325 | for scientific calculations, but you have to check this for yourself. | |
1326 | If you do not feel you need a faster FP emulation you should better | |
1327 | choose NWFPE. | |
1328 | ||
1329 | config VFP | |
1330 | bool "VFP-format floating point maths" | |
c00d4ffd | 1331 | depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON |
1da177e4 LT |
1332 | help |
1333 | Say Y to include VFP support code in the kernel. This is needed | |
1334 | if your hardware includes a VFP unit. | |
1335 | ||
1336 | Please see <file:Documentation/arm/VFP/release-notes.txt> for | |
1337 | release notes and additional status information. | |
1338 | ||
1339 | Say N if your target does not have VFP hardware. | |
1340 | ||
25ebee02 CM |
1341 | config VFPv3 |
1342 | bool | |
1343 | depends on VFP | |
1344 | default y if CPU_V7 | |
1345 | ||
b5872db4 CM |
1346 | config NEON |
1347 | bool "Advanced SIMD (NEON) Extension support" | |
1348 | depends on VFPv3 && CPU_V7 | |
1349 | help | |
1350 | Say Y to include support code for NEON, the ARMv7 Advanced SIMD | |
1351 | Extension. | |
1352 | ||
1da177e4 LT |
1353 | endmenu |
1354 | ||
1355 | menu "Userspace binary formats" | |
1356 | ||
1357 | source "fs/Kconfig.binfmt" | |
1358 | ||
1359 | config ARTHUR | |
1360 | tristate "RISC OS personality" | |
704bdda0 | 1361 | depends on !AEABI |
1da177e4 LT |
1362 | help |
1363 | Say Y here to include the kernel code necessary if you want to run | |
1364 | Acorn RISC OS/Arthur binaries under Linux. This code is still very | |
1365 | experimental; if this sounds frightening, say N and sleep in peace. | |
1366 | You can also say M here to compile this support as a module (which | |
1367 | will be called arthur). | |
1368 | ||
1369 | endmenu | |
1370 | ||
1371 | menu "Power management options" | |
1372 | ||
eceab4ac | 1373 | source "kernel/power/Kconfig" |
1da177e4 | 1374 | |
f4cb5700 JB |
1375 | config ARCH_SUSPEND_POSSIBLE |
1376 | def_bool y | |
1377 | ||
1da177e4 LT |
1378 | endmenu |
1379 | ||
d5950b43 SR |
1380 | source "net/Kconfig" |
1381 | ||
1da177e4 LT |
1382 | menu "Device Drivers" |
1383 | ||
1384 | source "drivers/base/Kconfig" | |
1385 | ||
c35bf4a5 PM |
1386 | source "drivers/connector/Kconfig" |
1387 | ||
f12d0d7c | 1388 | if ALIGNMENT_TRAP || !CPU_CP15_MMU |
1da177e4 LT |
1389 | source "drivers/mtd/Kconfig" |
1390 | endif | |
1391 | ||
1392 | source "drivers/parport/Kconfig" | |
1393 | ||
1394 | source "drivers/pnp/Kconfig" | |
1395 | ||
1396 | source "drivers/block/Kconfig" | |
1397 | ||
58273e55 RK |
1398 | # misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4 |
1399 | ||
1400 | source "drivers/misc/Kconfig" | |
1401 | ||
1da177e4 | 1402 | source "drivers/ide/Kconfig" |
1da177e4 LT |
1403 | |
1404 | source "drivers/scsi/Kconfig" | |
1405 | ||
eb370f0b MM |
1406 | source "drivers/ata/Kconfig" |
1407 | ||
1da177e4 LT |
1408 | source "drivers/md/Kconfig" |
1409 | ||
1410 | source "drivers/message/fusion/Kconfig" | |
1411 | ||
1412 | source "drivers/ieee1394/Kconfig" | |
1413 | ||
1414 | source "drivers/message/i2o/Kconfig" | |
1415 | ||
d5950b43 | 1416 | source "drivers/net/Kconfig" |
1da177e4 LT |
1417 | |
1418 | source "drivers/isdn/Kconfig" | |
1419 | ||
1420 | # input before char - char/joystick depends on it. As does USB. | |
1421 | ||
1422 | source "drivers/input/Kconfig" | |
1423 | ||
1424 | source "drivers/char/Kconfig" | |
1425 | ||
1426 | source "drivers/i2c/Kconfig" | |
1427 | ||
8ae12a0d DB |
1428 | source "drivers/spi/Kconfig" |
1429 | ||
a9c5fff5 DB |
1430 | source "drivers/gpio/Kconfig" |
1431 | ||
04916c0e AZ |
1432 | source "drivers/w1/Kconfig" |
1433 | ||
58273e55 RK |
1434 | source "drivers/power/Kconfig" |
1435 | ||
ad2f931d JD |
1436 | source "drivers/hwmon/Kconfig" |
1437 | ||
ac9d7efc RK |
1438 | source "drivers/thermal/Kconfig" |
1439 | ||
70dfa3f8 RK |
1440 | source "drivers/watchdog/Kconfig" |
1441 | ||
58273e55 | 1442 | source "drivers/ssb/Kconfig" |
1da177e4 | 1443 | |
58273e55 | 1444 | #source "drivers/l3/Kconfig" |
1da177e4 | 1445 | |
a4e137ab RK |
1446 | source "drivers/mfd/Kconfig" |
1447 | ||
1da177e4 LT |
1448 | source "drivers/media/Kconfig" |
1449 | ||
1450 | source "drivers/video/Kconfig" | |
1451 | ||
1452 | source "sound/Kconfig" | |
1453 | ||
c2dade51 SH |
1454 | source "drivers/hid/Kconfig" |
1455 | ||
1da177e4 LT |
1456 | source "drivers/usb/Kconfig" |
1457 | ||
2f86c3e6 GKH |
1458 | source "drivers/uwb/Kconfig" |
1459 | ||
1da177e4 LT |
1460 | source "drivers/mmc/Kconfig" |
1461 | ||
ac9d7efc RK |
1462 | source "drivers/memstick/Kconfig" |
1463 | ||
1464 | source "drivers/accessibility/Kconfig" | |
1465 | ||
58273e55 RK |
1466 | source "drivers/leds/Kconfig" |
1467 | ||
12b824fb AZ |
1468 | source "drivers/rtc/Kconfig" |
1469 | ||
5816815f DW |
1470 | source "drivers/dma/Kconfig" |
1471 | ||
abf07b19 DW |
1472 | source "drivers/dca/Kconfig" |
1473 | ||
ac9d7efc RK |
1474 | source "drivers/auxdisplay/Kconfig" |
1475 | ||
ba7e4763 LG |
1476 | source "drivers/regulator/Kconfig" |
1477 | ||
2dc034a8 HJK |
1478 | source "drivers/uio/Kconfig" |
1479 | ||
6e38a2ba DH |
1480 | source "drivers/staging/Kconfig" |
1481 | ||
1da177e4 LT |
1482 | endmenu |
1483 | ||
1484 | source "fs/Kconfig" | |
1485 | ||
1da177e4 LT |
1486 | source "arch/arm/Kconfig.debug" |
1487 | ||
1488 | source "security/Kconfig" | |
1489 | ||
1490 | source "crypto/Kconfig" | |
1491 | ||
1492 | source "lib/Kconfig" |