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