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 | |
37 | default n | |
38 | ||
746140c7 KH |
39 | config GENERIC_TIME |
40 | bool | |
41 | default n | |
42 | ||
0567a0c0 KH |
43 | config GENERIC_CLOCKEVENTS |
44 | bool | |
45 | default n | |
46 | ||
a8655e83 CM |
47 | config GENERIC_CLOCKEVENTS_BROADCAST |
48 | bool | |
49 | depends on GENERIC_CLOCKEVENTS | |
50 | default y if SMP && !LOCAL_TIMERS | |
51 | ||
1da177e4 LT |
52 | config MMU |
53 | bool | |
54 | default y | |
55 | ||
5ea81769 AV |
56 | config NO_IOPORT |
57 | bool | |
58 | default n | |
59 | ||
1da177e4 LT |
60 | config EISA |
61 | bool | |
62 | ---help--- | |
63 | The Extended Industry Standard Architecture (EISA) bus was | |
64 | developed as an open alternative to the IBM MicroChannel bus. | |
65 | ||
66 | The EISA bus provided some of the features of the IBM MicroChannel | |
67 | bus while maintaining backward compatibility with cards made for | |
68 | the older ISA bus. The EISA bus saw limited use between 1988 and | |
69 | 1995 when it was made obsolete by the PCI bus. | |
70 | ||
71 | Say Y here if you are building a kernel for an EISA-based machine. | |
72 | ||
73 | Otherwise, say N. | |
74 | ||
75 | config SBUS | |
76 | bool | |
77 | ||
78 | config MCA | |
79 | bool | |
80 | help | |
81 | MicroChannel Architecture is found in some IBM PS/2 machines and | |
82 | laptops. It is a bus system similar to PCI or ISA. See | |
83 | <file:Documentation/mca.txt> (and especially the web page given | |
84 | there) before attempting to build an MCA bus kernel. | |
85 | ||
4a2581a0 TG |
86 | config GENERIC_HARDIRQS |
87 | bool | |
88 | default y | |
89 | ||
f16fb1ec RK |
90 | config STACKTRACE_SUPPORT |
91 | bool | |
92 | default y | |
93 | ||
f76e9154 NP |
94 | config HAVE_LATENCYTOP_SUPPORT |
95 | bool | |
96 | depends on !SMP | |
97 | default y | |
98 | ||
f16fb1ec RK |
99 | config LOCKDEP_SUPPORT |
100 | bool | |
101 | default y | |
102 | ||
7ad1bcb2 RK |
103 | config TRACE_IRQFLAGS_SUPPORT |
104 | bool | |
105 | default y | |
106 | ||
4a2581a0 TG |
107 | config HARDIRQS_SW_RESEND |
108 | bool | |
109 | default y | |
110 | ||
111 | config GENERIC_IRQ_PROBE | |
112 | bool | |
113 | default y | |
114 | ||
95c354fe NP |
115 | config GENERIC_LOCKBREAK |
116 | bool | |
117 | default y | |
118 | depends on SMP && PREEMPT | |
119 | ||
1da177e4 LT |
120 | config RWSEM_GENERIC_SPINLOCK |
121 | bool | |
122 | default y | |
123 | ||
124 | config RWSEM_XCHGADD_ALGORITHM | |
125 | bool | |
126 | ||
f0d1b0b3 DH |
127 | config ARCH_HAS_ILOG2_U32 |
128 | bool | |
129 | default n | |
130 | ||
131 | config ARCH_HAS_ILOG2_U64 | |
132 | bool | |
133 | default n | |
134 | ||
b89c3b16 AM |
135 | config GENERIC_HWEIGHT |
136 | bool | |
137 | default y | |
138 | ||
1da177e4 LT |
139 | config GENERIC_CALIBRATE_DELAY |
140 | bool | |
141 | default y | |
142 | ||
a08b6b79 AV |
143 | config ARCH_MAY_HAVE_PC_FDC |
144 | bool | |
145 | ||
5ac6da66 CL |
146 | config ZONE_DMA |
147 | bool | |
5ac6da66 | 148 | |
1da177e4 LT |
149 | config GENERIC_ISA_DMA |
150 | bool | |
151 | ||
1da177e4 LT |
152 | config FIQ |
153 | bool | |
154 | ||
034d2f5a AV |
155 | config ARCH_MTD_XIP |
156 | bool | |
157 | ||
60a752ef | 158 | config GENERIC_HARDIRQS_NO__DO_IRQ |
60a752ef PZ |
159 | def_bool y |
160 | ||
c0ffa3a9 MD |
161 | if OPROFILE |
162 | ||
163 | config OPROFILE_ARMV6 | |
164 | def_bool y | |
165 | depends on CPU_V6 && !SMP | |
166 | select OPROFILE_ARM11_CORE | |
167 | ||
168 | config OPROFILE_MPCORE | |
169 | def_bool y | |
170 | depends on CPU_V6 && SMP | |
171 | select OPROFILE_ARM11_CORE | |
172 | ||
173 | config OPROFILE_ARM11_CORE | |
174 | bool | |
175 | ||
d7ac4e28 JP |
176 | config OPROFILE_ARMV7 |
177 | def_bool y | |
178 | depends on CPU_V7 && !SMP | |
179 | bool | |
180 | ||
c0ffa3a9 MD |
181 | endif |
182 | ||
c760fc19 HC |
183 | config VECTORS_BASE |
184 | hex | |
6afd6fae | 185 | default 0xffff0000 if MMU || CPU_HIGH_VECTOR |
c760fc19 HC |
186 | default DRAM_BASE if REMAP_VECTORS_TO_RAM |
187 | default 0x00000000 | |
188 | help | |
189 | The base address of exception vectors. | |
190 | ||
1da177e4 LT |
191 | source "init/Kconfig" |
192 | ||
dc52ddc0 MH |
193 | source "kernel/Kconfig.freezer" |
194 | ||
1da177e4 LT |
195 | menu "System Type" |
196 | ||
197 | choice | |
198 | prompt "ARM system type" | |
6a0e2430 | 199 | default ARCH_VERSATILE |
1da177e4 | 200 | |
4af6fee1 DS |
201 | config ARCH_AAEC2000 |
202 | bool "Agilent AAEC-2000 based" | |
c750815e | 203 | select CPU_ARM920T |
4af6fee1 | 204 | select ARM_AMBA |
9483a578 | 205 | select HAVE_CLK |
4af6fee1 DS |
206 | help |
207 | This enables support for systems based on the Agilent AAEC-2000 | |
208 | ||
209 | config ARCH_INTEGRATOR | |
210 | bool "ARM Ltd. Integrator family" | |
211 | select ARM_AMBA | |
9483a578 | 212 | select HAVE_CLK |
d72fbdf0 | 213 | select COMMON_CLKDEV |
4af6fee1 DS |
214 | select ICST525 |
215 | help | |
216 | Support for ARM's Integrator platform. | |
217 | ||
218 | config ARCH_REALVIEW | |
219 | bool "ARM Ltd. RealView family" | |
220 | select ARM_AMBA | |
9483a578 | 221 | select HAVE_CLK |
cf30fb4a | 222 | select COMMON_CLKDEV |
4af6fee1 | 223 | select ICST307 |
85802afe | 224 | select GENERIC_TIME |
ae30ceac | 225 | select GENERIC_CLOCKEVENTS |
4af6fee1 DS |
226 | help |
227 | This enables support for ARM Ltd RealView boards. | |
228 | ||
229 | config ARCH_VERSATILE | |
230 | bool "ARM Ltd. Versatile family" | |
231 | select ARM_AMBA | |
232 | select ARM_VIC | |
9483a578 | 233 | select HAVE_CLK |
71a06da0 | 234 | select COMMON_CLKDEV |
4af6fee1 | 235 | select ICST307 |
b49c87c2 | 236 | select GENERIC_TIME |
89df1272 | 237 | select GENERIC_CLOCKEVENTS |
4af6fee1 DS |
238 | help |
239 | This enables support for ARM Ltd Versatile board. | |
240 | ||
8fc5ffa0 AV |
241 | config ARCH_AT91 |
242 | bool "Atmel AT91" | |
0a938b97 | 243 | select GENERIC_GPIO |
f373e8c0 | 244 | select ARCH_REQUIRE_GPIOLIB |
93686ae8 | 245 | select HAVE_CLK |
4af6fee1 | 246 | help |
2b3b3516 AV |
247 | This enables support for systems based on the Atmel AT91RM9200, |
248 | AT91SAM9 and AT91CAP9 processors. | |
4af6fee1 | 249 | |
1da177e4 | 250 | config ARCH_CLPS711X |
4af6fee1 | 251 | bool "Cirrus Logic CLPS711x/EP721x-based" |
c750815e | 252 | select CPU_ARM720T |
f999b8bd MM |
253 | help |
254 | Support for Cirrus Logic 711x/721x based boards. | |
1da177e4 | 255 | |
1da177e4 LT |
256 | config ARCH_EBSA110 |
257 | bool "EBSA-110" | |
c750815e | 258 | select CPU_SA110 |
f7e68bbf | 259 | select ISA |
c5eb2a2b | 260 | select NO_IOPORT |
1da177e4 LT |
261 | help |
262 | This is an evaluation board for the StrongARM processor available | |
f6c8965a | 263 | from Digital. It has limited hardware on-board, including an |
1da177e4 LT |
264 | Ethernet interface, two PCMCIA sockets, two serial ports and a |
265 | parallel port. | |
266 | ||
e7736d47 LB |
267 | config ARCH_EP93XX |
268 | bool "EP93xx-based" | |
c750815e | 269 | select CPU_ARM920T |
e7736d47 LB |
270 | select ARM_AMBA |
271 | select ARM_VIC | |
4e9f9fd5 | 272 | select GENERIC_GPIO |
9483a578 | 273 | select HAVE_CLK |
ae696fd5 | 274 | select COMMON_CLKDEV |
7444a72e | 275 | select ARCH_REQUIRE_GPIOLIB |
e7736d47 LB |
276 | help |
277 | This enables support for the Cirrus EP93xx series of CPUs. | |
278 | ||
59d3a193 PZ |
279 | config ARCH_GEMINI |
280 | bool "Cortina Systems Gemini" | |
281 | select CPU_FA526 | |
1df621ae PZ |
282 | select GENERIC_GPIO |
283 | select ARCH_REQUIRE_GPIOLIB | |
59d3a193 PZ |
284 | help |
285 | Support for the Cortina Systems Gemini family SoCs | |
286 | ||
1da177e4 LT |
287 | config ARCH_FOOTBRIDGE |
288 | bool "FootBridge" | |
c750815e | 289 | select CPU_SA110 |
1da177e4 | 290 | select FOOTBRIDGE |
f999b8bd MM |
291 | help |
292 | Support for systems based on the DC21285 companion chip | |
293 | ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder. | |
1da177e4 | 294 | |
4af6fee1 DS |
295 | config ARCH_NETX |
296 | bool "Hilscher NetX based" | |
c750815e | 297 | select CPU_ARM926T |
4af6fee1 | 298 | select ARM_VIC |
2fcfe6b8 | 299 | select GENERIC_CLOCKEVENTS |
21edecd3 | 300 | select GENERIC_TIME |
f999b8bd | 301 | help |
4af6fee1 DS |
302 | This enables support for systems based on the Hilscher NetX Soc |
303 | ||
304 | config ARCH_H720X | |
305 | bool "Hynix HMS720x-based" | |
c750815e | 306 | select CPU_ARM720T |
4af6fee1 DS |
307 | select ISA_DMA_API |
308 | help | |
309 | This enables support for systems based on the Hynix HMS720x | |
310 | ||
311 | config ARCH_IMX | |
312 | bool "IMX" | |
c750815e | 313 | select CPU_ARM920T |
b3e6a508 | 314 | select GENERIC_GPIO |
89bba435 PP |
315 | select GENERIC_TIME |
316 | select GENERIC_CLOCKEVENTS | |
4af6fee1 DS |
317 | help |
318 | Support for Motorola's i.MX family of processors (MX1, MXL). | |
1da177e4 | 319 | |
3b938be6 RK |
320 | config ARCH_IOP13XX |
321 | bool "IOP13xx-based" | |
322 | depends on MMU | |
c750815e | 323 | select CPU_XSC3 |
3b938be6 RK |
324 | select PLAT_IOP |
325 | select PCI | |
326 | select ARCH_SUPPORTS_MSI | |
8d5796d2 | 327 | select VMSPLIT_1G |
3b938be6 RK |
328 | help |
329 | Support for Intel's IOP13XX (XScale) family of processors. | |
330 | ||
3f7e5815 LB |
331 | config ARCH_IOP32X |
332 | bool "IOP32x-based" | |
a4f7e763 | 333 | depends on MMU |
c750815e | 334 | select CPU_XSCALE |
7ae1f7ec | 335 | select PLAT_IOP |
f7e68bbf | 336 | select PCI |
63f385cd | 337 | select GENERIC_GPIO |
bb2b180c | 338 | select ARCH_REQUIRE_GPIOLIB |
f999b8bd | 339 | help |
3f7e5815 LB |
340 | Support for Intel's 80219 and IOP32X (XScale) family of |
341 | processors. | |
342 | ||
343 | config ARCH_IOP33X | |
344 | bool "IOP33x-based" | |
345 | depends on MMU | |
c750815e | 346 | select CPU_XSCALE |
7ae1f7ec | 347 | select PLAT_IOP |
3f7e5815 | 348 | select PCI |
63f385cd | 349 | select GENERIC_GPIO |
bb2b180c | 350 | select ARCH_REQUIRE_GPIOLIB |
3f7e5815 LB |
351 | help |
352 | Support for Intel's IOP33X (XScale) family of processors. | |
1da177e4 | 353 | |
3b938be6 RK |
354 | config ARCH_IXP23XX |
355 | bool "IXP23XX-based" | |
a4f7e763 | 356 | depends on MMU |
c750815e | 357 | select CPU_XSC3 |
3b938be6 | 358 | select PCI |
f999b8bd | 359 | help |
3b938be6 | 360 | Support for Intel's IXP23xx (XScale) family of processors. |
1da177e4 LT |
361 | |
362 | config ARCH_IXP2000 | |
363 | bool "IXP2400/2800-based" | |
a4f7e763 | 364 | depends on MMU |
c750815e | 365 | select CPU_XSCALE |
f7e68bbf | 366 | select PCI |
f999b8bd MM |
367 | help |
368 | Support for Intel's IXP2400/2800 (XScale) family of processors. | |
1da177e4 | 369 | |
3b938be6 RK |
370 | config ARCH_IXP4XX |
371 | bool "IXP4xx-based" | |
a4f7e763 | 372 | depends on MMU |
c750815e | 373 | select CPU_XSCALE |
8858e9af | 374 | select GENERIC_GPIO |
3b938be6 RK |
375 | select GENERIC_TIME |
376 | select GENERIC_CLOCKEVENTS | |
485bdde7 | 377 | select DMABOUNCE if PCI |
c4713074 | 378 | help |
3b938be6 | 379 | Support for Intel's IXP4XX (XScale) family of processors. |
c4713074 | 380 | |
1da177e4 LT |
381 | config ARCH_L7200 |
382 | bool "LinkUp-L7200" | |
c750815e | 383 | select CPU_ARM720T |
1da177e4 LT |
384 | select FIQ |
385 | help | |
386 | Say Y here if you intend to run this kernel on a LinkUp Systems | |
387 | L7200 Software Development Board which uses an ARM720T processor. | |
388 | Information on this board can be obtained at: | |
389 | ||
390 | <http://www.linkupsys.com/> | |
391 | ||
392 | If you have any questions or comments about the Linux kernel port | |
393 | to this board, send e-mail to <sjhill@cotw.com>. | |
394 | ||
651c74c7 SB |
395 | config ARCH_KIRKWOOD |
396 | bool "Marvell Kirkwood" | |
c750815e | 397 | select CPU_FEROCEON |
651c74c7 | 398 | select PCI |
4c213430 | 399 | select GENERIC_GPIO |
651c74c7 SB |
400 | select GENERIC_TIME |
401 | select GENERIC_CLOCKEVENTS | |
402 | select PLAT_ORION | |
403 | help | |
404 | Support for the following Marvell Kirkwood series SoCs: | |
405 | 88F6180, 88F6192 and 88F6281. | |
406 | ||
c53c9cf6 AV |
407 | config ARCH_KS8695 |
408 | bool "Micrel/Kendin KS8695" | |
c750815e | 409 | select CPU_ARM922T |
8a87a996 | 410 | select GENERIC_GPIO |
72880ad8 | 411 | select ARCH_REQUIRE_GPIOLIB |
c53c9cf6 AV |
412 | help |
413 | Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based | |
414 | System-on-Chip devices. | |
415 | ||
9918cda5 UKK |
416 | config ARCH_NS9XXX |
417 | bool "NetSilicon NS9xxx" | |
c750815e | 418 | select CPU_ARM926T |
689f2a01 | 419 | select GENERIC_GPIO |
cef5975d | 420 | select GENERIC_TIME |
c0bb87f7 | 421 | select GENERIC_CLOCKEVENTS |
9483a578 | 422 | select HAVE_CLK |
9918cda5 UKK |
423 | help |
424 | Say Y here if you intend to run this kernel on a NetSilicon NS9xxx | |
425 | System. | |
426 | ||
427 | <http://www.digi.com/products/microprocessors/index.jsp> | |
428 | ||
777f9beb LB |
429 | config ARCH_LOKI |
430 | bool "Marvell Loki (88RC8480)" | |
c750815e | 431 | select CPU_FEROCEON |
777f9beb LB |
432 | select GENERIC_TIME |
433 | select GENERIC_CLOCKEVENTS | |
434 | select PLAT_ORION | |
435 | help | |
436 | Support for the Marvell Loki (88RC8480) SoC. | |
437 | ||
794d15b2 SS |
438 | config ARCH_MV78XX0 |
439 | bool "Marvell MV78xx0" | |
c750815e | 440 | select CPU_FEROCEON |
794d15b2 | 441 | select PCI |
b95a13d7 | 442 | select GENERIC_GPIO |
794d15b2 SS |
443 | select GENERIC_TIME |
444 | select GENERIC_CLOCKEVENTS | |
445 | select PLAT_ORION | |
446 | help | |
447 | Support for the following Marvell MV78xx0 series SoCs: | |
448 | MV781x0, MV782x0. | |
449 | ||
52c543f9 QJ |
450 | config ARCH_MXC |
451 | bool "Freescale MXC/iMX-based" | |
d0f349fb JB |
452 | select GENERIC_TIME |
453 | select GENERIC_CLOCKEVENTS | |
52c543f9 | 454 | select ARCH_MTD_XIP |
07bd1a6c | 455 | select GENERIC_GPIO |
bb2b180c | 456 | select ARCH_REQUIRE_GPIOLIB |
9abf137c | 457 | select HAVE_CLK |
52c543f9 QJ |
458 | help |
459 | Support for Freescale MXC/iMX-based family of processors | |
460 | ||
9dd0b194 | 461 | config ARCH_ORION5X |
585cf175 TP |
462 | bool "Marvell Orion" |
463 | depends on MMU | |
c750815e | 464 | select CPU_FEROCEON |
038ee083 | 465 | select PCI |
01af72e4 | 466 | select GENERIC_GPIO |
51cbff1d TP |
467 | select GENERIC_TIME |
468 | select GENERIC_CLOCKEVENTS | |
69b02f6a | 469 | select PLAT_ORION |
585cf175 | 470 | help |
9dd0b194 | 471 | Support for the following Marvell Orion 5x series SoCs: |
d2b2a6bb | 472 | Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182), |
d323ade1 | 473 | Orion-2 (5281), Orion-1-90 (6183). |
585cf175 | 474 | |
4af6fee1 DS |
475 | config ARCH_PNX4008 |
476 | bool "Philips Nexperia PNX4008 Mobile" | |
c750815e | 477 | select CPU_ARM926T |
9483a578 | 478 | select HAVE_CLK |
4af6fee1 DS |
479 | help |
480 | This enables support for Philips PNX4008 mobile platform. | |
481 | ||
1da177e4 | 482 | config ARCH_PXA |
2c8086a5 | 483 | bool "PXA2xx/PXA3xx-based" |
a4f7e763 | 484 | depends on MMU |
034d2f5a | 485 | select ARCH_MTD_XIP |
0a938b97 | 486 | select GENERIC_GPIO |
9483a578 | 487 | select HAVE_CLK |
8c3abc7d | 488 | select COMMON_CLKDEV |
7444a72e | 489 | select ARCH_REQUIRE_GPIOLIB |
45cf5eef | 490 | select GENERIC_TIME |
981d0f39 | 491 | select GENERIC_CLOCKEVENTS |
a88264c2 | 492 | select TICK_ONESHOT |
bd5ce433 | 493 | select PLAT_PXA |
f999b8bd | 494 | help |
2c8086a5 | 495 | Support for Intel/Marvell's PXA2xx/PXA3xx processor line. |
1da177e4 | 496 | |
49cbe786 | 497 | config ARCH_MMP |
14c6b5e7 | 498 | bool "Marvell PXA168/910" |
49cbe786 | 499 | depends on MMU |
e2bb6650 EM |
500 | select GENERIC_GPIO |
501 | select ARCH_REQUIRE_GPIOLIB | |
49cbe786 EM |
502 | select HAVE_CLK |
503 | select COMMON_CLKDEV | |
504 | select GENERIC_TIME | |
505 | select GENERIC_CLOCKEVENTS | |
506 | select TICK_ONESHOT | |
507 | select PLAT_PXA | |
508 | help | |
14c6b5e7 | 509 | Support for Marvell's PXA168/910 processor line. |
49cbe786 | 510 | |
1da177e4 LT |
511 | config ARCH_RPC |
512 | bool "RiscPC" | |
513 | select ARCH_ACORN | |
514 | select FIQ | |
515 | select TIMER_ACORN | |
a08b6b79 | 516 | select ARCH_MAY_HAVE_PC_FDC |
341eb781 | 517 | select HAVE_PATA_PLATFORM |
065909b9 | 518 | select ISA_DMA_API |
5ea81769 | 519 | select NO_IOPORT |
07f841b7 | 520 | select ARCH_SPARSEMEM_ENABLE |
1da177e4 LT |
521 | help |
522 | On the Acorn Risc-PC, Linux can support the internal IDE disk and | |
523 | CD-ROM interface, serial and parallel port, and the floppy drive. | |
524 | ||
525 | config ARCH_SA1100 | |
526 | bool "SA1100-based" | |
c750815e | 527 | select CPU_SA1100 |
f7e68bbf | 528 | select ISA |
05944d74 | 529 | select ARCH_SPARSEMEM_ENABLE |
034d2f5a | 530 | select ARCH_MTD_XIP |
0a938b97 | 531 | select GENERIC_GPIO |
d142b6e7 | 532 | select GENERIC_TIME |
3e238be2 | 533 | select GENERIC_CLOCKEVENTS |
9483a578 | 534 | select HAVE_CLK |
3e238be2 | 535 | select TICK_ONESHOT |
7444a72e | 536 | select ARCH_REQUIRE_GPIOLIB |
f999b8bd MM |
537 | help |
538 | Support for StrongARM 11x0 based boards. | |
1da177e4 LT |
539 | |
540 | config ARCH_S3C2410 | |
e4d06e39 | 541 | bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443" |
0a938b97 | 542 | select GENERIC_GPIO |
9483a578 | 543 | select HAVE_CLK |
1da177e4 LT |
544 | help |
545 | Samsung S3C2410X CPU based systems, such as the Simtec Electronics | |
546 | BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or | |
f6c8965a | 547 | the Samsung SMDK2410 development board (and derivatives). |
1da177e4 | 548 | |
a08ab637 BD |
549 | config ARCH_S3C64XX |
550 | bool "Samsung S3C64XX" | |
551 | select GENERIC_GPIO | |
552 | select HAVE_CLK | |
553 | help | |
554 | Samsung S3C64XX series based systems | |
555 | ||
1da177e4 LT |
556 | config ARCH_SHARK |
557 | bool "Shark" | |
c750815e | 558 | select CPU_SA110 |
f7e68bbf RK |
559 | select ISA |
560 | select ISA_DMA | |
3bca103a | 561 | select ZONE_DMA |
f7e68bbf | 562 | select PCI |
f999b8bd MM |
563 | help |
564 | Support for the StrongARM based Digital DNARD machine, also known | |
565 | as "Shark" (<http://www.shark-linux.de/shark.html>). | |
1da177e4 LT |
566 | |
567 | config ARCH_LH7A40X | |
568 | bool "Sharp LH7A40X" | |
c750815e | 569 | select CPU_ARM922T |
4ba3f7c5 RK |
570 | select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM |
571 | select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM | |
1da177e4 LT |
572 | help |
573 | Say Y here for systems based on one of the Sharp LH7A40X | |
574 | System on a Chip processors. These CPUs include an ARM922T | |
575 | core with a wide array of integrated devices for | |
576 | hand-held and low-power applications. | |
577 | ||
7c6337e2 KH |
578 | config ARCH_DAVINCI |
579 | bool "TI DaVinci" | |
c750815e | 580 | select CPU_ARM926T |
7c6337e2 KH |
581 | select GENERIC_TIME |
582 | select GENERIC_CLOCKEVENTS | |
3d9edf09 | 583 | select GENERIC_GPIO |
dce1115b | 584 | select ARCH_REQUIRE_GPIOLIB |
9483a578 | 585 | select HAVE_CLK |
3bca103a | 586 | select ZONE_DMA |
9232fcc9 | 587 | select HAVE_IDE |
c5b736d0 | 588 | select COMMON_CLKDEV |
7c6337e2 KH |
589 | help |
590 | Support for TI's DaVinci platform. | |
591 | ||
3b938be6 RK |
592 | config ARCH_OMAP |
593 | bool "TI OMAP" | |
594 | select GENERIC_GPIO | |
9483a578 | 595 | select HAVE_CLK |
7444a72e | 596 | select ARCH_REQUIRE_GPIOLIB |
3b938be6 | 597 | select GENERIC_TIME |
06cad098 | 598 | select GENERIC_CLOCKEVENTS |
3b938be6 RK |
599 | help |
600 | Support for TI's OMAP platform (OMAP1 and OMAP2). | |
601 | ||
1637de0c BS |
602 | config ARCH_MSM |
603 | bool "Qualcomm MSM" | |
c750815e | 604 | select CPU_V6 |
3042102a BS |
605 | select GENERIC_TIME |
606 | select GENERIC_CLOCKEVENTS | |
607 | help | |
1637de0c BS |
608 | Support for Qualcomm MSM7K based systems. This runs on the ARM11 |
609 | apps processor of the MSM7K and depends on a shared memory | |
3042102a BS |
610 | interface to the ARM9 modem processor which runs the baseband stack |
611 | and controls some vital subsystems (clock and power control, etc). | |
3042102a | 612 | |
7ec80ddf | 613 | config ARCH_W90X900 |
614 | bool "Nuvoton W90X900 CPU" | |
615 | select CPU_ARM926T | |
616 | help | |
617 | Support for Nuvoton (Winbond logic dept.) ARM9 processor,You | |
618 | can login www.mcuos.com or www.nuvoton.com to know more. | |
619 | ||
1da177e4 LT |
620 | endchoice |
621 | ||
622 | source "arch/arm/mach-clps711x/Kconfig" | |
623 | ||
e7736d47 LB |
624 | source "arch/arm/mach-ep93xx/Kconfig" |
625 | ||
1da177e4 LT |
626 | source "arch/arm/mach-footbridge/Kconfig" |
627 | ||
59d3a193 PZ |
628 | source "arch/arm/mach-gemini/Kconfig" |
629 | ||
1da177e4 LT |
630 | source "arch/arm/mach-integrator/Kconfig" |
631 | ||
3f7e5815 LB |
632 | source "arch/arm/mach-iop32x/Kconfig" |
633 | ||
634 | source "arch/arm/mach-iop33x/Kconfig" | |
1da177e4 | 635 | |
285f5fa7 DW |
636 | source "arch/arm/mach-iop13xx/Kconfig" |
637 | ||
1da177e4 LT |
638 | source "arch/arm/mach-ixp4xx/Kconfig" |
639 | ||
640 | source "arch/arm/mach-ixp2000/Kconfig" | |
641 | ||
c4713074 LB |
642 | source "arch/arm/mach-ixp23xx/Kconfig" |
643 | ||
777f9beb LB |
644 | source "arch/arm/mach-loki/Kconfig" |
645 | ||
794d15b2 SS |
646 | source "arch/arm/mach-mv78xx0/Kconfig" |
647 | ||
1da177e4 | 648 | source "arch/arm/mach-pxa/Kconfig" |
bd5ce433 | 649 | source "arch/arm/plat-pxa/Kconfig" |
1da177e4 | 650 | |
49cbe786 EM |
651 | source "arch/arm/mach-mmp/Kconfig" |
652 | ||
1da177e4 LT |
653 | source "arch/arm/mach-sa1100/Kconfig" |
654 | ||
d48af15e TL |
655 | source "arch/arm/plat-omap/Kconfig" |
656 | ||
657 | source "arch/arm/mach-omap1/Kconfig" | |
1da177e4 | 658 | |
1dbae815 TL |
659 | source "arch/arm/mach-omap2/Kconfig" |
660 | ||
9dd0b194 | 661 | source "arch/arm/mach-orion5x/Kconfig" |
585cf175 | 662 | |
651c74c7 | 663 | source "arch/arm/mach-kirkwood/Kconfig" |
585cf175 | 664 | |
a21765a7 | 665 | source "arch/arm/plat-s3c24xx/Kconfig" |
a08ab637 | 666 | source "arch/arm/plat-s3c64xx/Kconfig" |
d58153d8 | 667 | source "arch/arm/plat-s3c/Kconfig" |
a21765a7 BD |
668 | |
669 | if ARCH_S3C2410 | |
670 | source "arch/arm/mach-s3c2400/Kconfig" | |
1da177e4 | 671 | source "arch/arm/mach-s3c2410/Kconfig" |
a21765a7 BD |
672 | source "arch/arm/mach-s3c2412/Kconfig" |
673 | source "arch/arm/mach-s3c2440/Kconfig" | |
674 | source "arch/arm/mach-s3c2442/Kconfig" | |
e4d06e39 | 675 | source "arch/arm/mach-s3c2443/Kconfig" |
a21765a7 | 676 | endif |
1da177e4 | 677 | |
a08ab637 BD |
678 | if ARCH_S3C64XX |
679 | source "arch/arm/mach-s3c6400/Kconfig" | |
680 | source "arch/arm/mach-s3c6410/Kconfig" | |
681 | endif | |
682 | ||
1da177e4 LT |
683 | source "arch/arm/mach-lh7a40x/Kconfig" |
684 | ||
685 | source "arch/arm/mach-imx/Kconfig" | |
686 | ||
687 | source "arch/arm/mach-h720x/Kconfig" | |
688 | ||
689 | source "arch/arm/mach-versatile/Kconfig" | |
690 | ||
038c5b60 BN |
691 | source "arch/arm/mach-aaec2000/Kconfig" |
692 | ||
8ad68bbf CM |
693 | source "arch/arm/mach-realview/Kconfig" |
694 | ||
9d041268 | 695 | source "arch/arm/mach-at91/Kconfig" |
73a59c1c | 696 | |
52c543f9 QJ |
697 | source "arch/arm/plat-mxc/Kconfig" |
698 | ||
bb6d8c88 SH |
699 | source "arch/arm/mach-netx/Kconfig" |
700 | ||
9918cda5 UKK |
701 | source "arch/arm/mach-ns9xxx/Kconfig" |
702 | ||
7c6337e2 KH |
703 | source "arch/arm/mach-davinci/Kconfig" |
704 | ||
c53c9cf6 AV |
705 | source "arch/arm/mach-ks8695/Kconfig" |
706 | ||
9e73c84c BS |
707 | source "arch/arm/mach-msm/Kconfig" |
708 | ||
7ec80ddf | 709 | source "arch/arm/mach-w90x900/Kconfig" |
710 | ||
1da177e4 LT |
711 | # Definitions to make life easier |
712 | config ARCH_ACORN | |
713 | bool | |
714 | ||
7ae1f7ec LB |
715 | config PLAT_IOP |
716 | bool | |
717 | ||
69b02f6a LB |
718 | config PLAT_ORION |
719 | bool | |
720 | ||
bd5ce433 EM |
721 | config PLAT_PXA |
722 | bool | |
723 | ||
1da177e4 LT |
724 | source arch/arm/mm/Kconfig |
725 | ||
afe4b25e LB |
726 | config IWMMXT |
727 | bool "Enable iWMMXt support" | |
40305a58 EM |
728 | depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK |
729 | default y if PXA27x || PXA3xx || ARCH_MMP | |
afe4b25e LB |
730 | help |
731 | Enable support for iWMMXt context switching at run time if | |
732 | running on a CPU that supports it. | |
733 | ||
1da177e4 LT |
734 | # bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER |
735 | config XSCALE_PMU | |
736 | bool | |
737 | depends on CPU_XSCALE && !XSCALE_PMU_TIMER | |
738 | default y | |
739 | ||
3b93e7b0 HC |
740 | if !MMU |
741 | source "arch/arm/Kconfig-nommu" | |
742 | endif | |
743 | ||
9cba3ccc CM |
744 | config ARM_ERRATA_411920 |
745 | bool "ARM errata: Invalidation of the Instruction Cache operation can fail" | |
746 | depends on CPU_V6 && !SMP | |
747 | help | |
748 | Invalidation of the Instruction Cache operation can | |
749 | fail. This erratum is present in 1136 (before r1p4), 1156 and 1176. | |
750 | It does not affect the MPCore. This option enables the ARM Ltd. | |
751 | recommended workaround. | |
752 | ||
7ce236fc CM |
753 | config ARM_ERRATA_430973 |
754 | bool "ARM errata: Stale prediction on replaced interworking branch" | |
755 | depends on CPU_V7 | |
756 | help | |
757 | This option enables the workaround for the 430973 Cortex-A8 | |
758 | (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb | |
759 | interworking branch is replaced with another code sequence at the | |
760 | same virtual address, whether due to self-modifying code or virtual | |
761 | to physical address re-mapping, Cortex-A8 does not recover from the | |
762 | stale interworking branch prediction. This results in Cortex-A8 | |
763 | executing the new code sequence in the incorrect ARM or Thumb state. | |
764 | The workaround enables the BTB/BTAC operations by setting ACTLR.IBE | |
765 | and also flushes the branch target cache at every context switch. | |
766 | Note that setting specific bits in the ACTLR register may not be | |
767 | available in non-secure mode. | |
768 | ||
855c551f CM |
769 | config ARM_ERRATA_458693 |
770 | bool "ARM errata: Processor deadlock when a false hazard is created" | |
771 | depends on CPU_V7 | |
772 | help | |
773 | This option enables the workaround for the 458693 Cortex-A8 (r2p0) | |
774 | erratum. For very specific sequences of memory operations, it is | |
775 | possible for a hazard condition intended for a cache line to instead | |
776 | be incorrectly associated with a different cache line. This false | |
777 | hazard might then cause a processor deadlock. The workaround enables | |
778 | the L1 caching of the NEON accesses and disables the PLD instruction | |
779 | in the ACTLR register. Note that setting specific bits in the ACTLR | |
780 | register may not be available in non-secure mode. | |
781 | ||
0516e464 CM |
782 | config ARM_ERRATA_460075 |
783 | bool "ARM errata: Data written to the L2 cache can be overwritten with stale data" | |
784 | depends on CPU_V7 | |
785 | help | |
786 | This option enables the workaround for the 460075 Cortex-A8 (r2p0) | |
787 | erratum. Any asynchronous access to the L2 cache may encounter a | |
788 | situation in which recent store transactions to the L2 cache are lost | |
789 | and overwritten with stale memory contents from external memory. The | |
790 | workaround disables the write-allocate mode for the L2 cache via the | |
791 | ACTLR register. Note that setting specific bits in the ACTLR register | |
792 | may not be available in non-secure mode. | |
793 | ||
1da177e4 LT |
794 | endmenu |
795 | ||
796 | source "arch/arm/common/Kconfig" | |
797 | ||
798 | config FORCE_MAX_ZONEORDER | |
799 | int | |
800 | depends on SA1111 | |
801 | default "9" | |
802 | ||
803 | menu "Bus support" | |
804 | ||
805 | config ARM_AMBA | |
806 | bool | |
807 | ||
808 | config ISA | |
809 | bool | |
1da177e4 LT |
810 | help |
811 | Find out whether you have ISA slots on your motherboard. ISA is the | |
812 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
813 | inside your box. Other bus systems are PCI, EISA, MicroChannel | |
814 | (MCA) or VESA. ISA is an older system, now being displaced by PCI; | |
815 | newer boards don't support it. If you have ISA, say Y, otherwise N. | |
816 | ||
065909b9 | 817 | # Select ISA DMA controller support |
1da177e4 LT |
818 | config ISA_DMA |
819 | bool | |
065909b9 | 820 | select ISA_DMA_API |
1da177e4 | 821 | |
065909b9 | 822 | # Select ISA DMA interface |
5cae841b AV |
823 | config ISA_DMA_API |
824 | bool | |
5cae841b | 825 | |
1da177e4 | 826 | config PCI |
a0113a99 | 827 | bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE |
1da177e4 LT |
828 | help |
829 | Find out whether you have a PCI motherboard. PCI is the name of a | |
830 | bus system, i.e. the way the CPU talks to the other stuff inside | |
831 | your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or | |
832 | VESA. If you have PCI, say Y, otherwise N. | |
833 | ||
36e23590 MW |
834 | config PCI_SYSCALL |
835 | def_bool PCI | |
836 | ||
1da177e4 LT |
837 | # Select the host bridge type |
838 | config PCI_HOST_VIA82C505 | |
839 | bool | |
840 | depends on PCI && ARCH_SHARK | |
841 | default y | |
842 | ||
a0113a99 MR |
843 | config PCI_HOST_ITE8152 |
844 | bool | |
845 | depends on PCI && MACH_ARMCORE | |
846 | default y | |
847 | select DMABOUNCE | |
848 | ||
1da177e4 LT |
849 | source "drivers/pci/Kconfig" |
850 | ||
851 | source "drivers/pcmcia/Kconfig" | |
852 | ||
853 | endmenu | |
854 | ||
855 | menu "Kernel Features" | |
856 | ||
0567a0c0 KH |
857 | source "kernel/time/Kconfig" |
858 | ||
1da177e4 LT |
859 | config SMP |
860 | bool "Symmetric Multi-Processing (EXPERIMENTAL)" | |
78fdcb42 | 861 | depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP) |
bc28248e | 862 | depends on GENERIC_CLOCKEVENTS |
f6dd9fa5 | 863 | select USE_GENERIC_SMP_HELPERS |
a8cbcd92 | 864 | select HAVE_ARM_SCU if ARCH_REALVIEW |
1da177e4 LT |
865 | help |
866 | This enables support for systems with more than one CPU. If you have | |
867 | a system with only one CPU, like most personal computers, say N. If | |
868 | you have a system with more than one CPU, say Y. | |
869 | ||
870 | If you say N here, the kernel will run on single and multiprocessor | |
871 | machines, but will use only one CPU of a multiprocessor machine. If | |
872 | you say Y here, the kernel will run on many, but not all, single | |
873 | processor machines. On a single processor machine, the kernel will | |
874 | run faster if you say N here. | |
875 | ||
03502faa | 876 | See also <file:Documentation/i386/IO-APIC.txt>, |
1da177e4 LT |
877 | <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at |
878 | <http://www.linuxdoc.org/docs.html#howto>. | |
879 | ||
880 | If you don't know what to do here, say N. | |
881 | ||
a8cbcd92 RK |
882 | config HAVE_ARM_SCU |
883 | bool | |
884 | depends on SMP | |
885 | help | |
886 | This option enables support for the ARM system coherency unit | |
887 | ||
f32f4ce2 RK |
888 | config HAVE_ARM_TWD |
889 | bool | |
890 | depends on SMP | |
891 | help | |
892 | This options enables support for the ARM timer and watchdog unit | |
893 | ||
8d5796d2 LB |
894 | choice |
895 | prompt "Memory split" | |
896 | default VMSPLIT_3G | |
897 | help | |
898 | Select the desired split between kernel and user memory. | |
899 | ||
900 | If you are not absolutely sure what you are doing, leave this | |
901 | option alone! | |
902 | ||
903 | config VMSPLIT_3G | |
904 | bool "3G/1G user/kernel split" | |
905 | config VMSPLIT_2G | |
906 | bool "2G/2G user/kernel split" | |
907 | config VMSPLIT_1G | |
908 | bool "1G/3G user/kernel split" | |
909 | endchoice | |
910 | ||
911 | config PAGE_OFFSET | |
912 | hex | |
913 | default 0x40000000 if VMSPLIT_1G | |
914 | default 0x80000000 if VMSPLIT_2G | |
915 | default 0xC0000000 | |
916 | ||
1da177e4 LT |
917 | config NR_CPUS |
918 | int "Maximum number of CPUs (2-32)" | |
919 | range 2 32 | |
920 | depends on SMP | |
921 | default "4" | |
922 | ||
a054a811 RK |
923 | config HOTPLUG_CPU |
924 | bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" | |
925 | depends on SMP && HOTPLUG && EXPERIMENTAL | |
926 | help | |
927 | Say Y here to experiment with turning CPUs off and on. CPUs | |
928 | can be controlled through /sys/devices/system/cpu. | |
929 | ||
37ee16ae RK |
930 | config LOCAL_TIMERS |
931 | bool "Use local timer interrupts" | |
4c3ea371 | 932 | depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || REALVIEW_EB_A9MP) |
37ee16ae | 933 | default y |
f32f4ce2 | 934 | select HAVE_ARM_TWD if ARCH_REALVIEW |
37ee16ae RK |
935 | help |
936 | Enable support for local timers on SMP platforms, rather then the | |
937 | legacy IPI broadcast method. Local timers allows the system | |
938 | accounting to be spread across the timer interval, preventing a | |
939 | "thundering herd" at every timer tick. | |
940 | ||
1da177e4 LT |
941 | config PREEMPT |
942 | bool "Preemptible Kernel (EXPERIMENTAL)" | |
943 | depends on EXPERIMENTAL | |
944 | help | |
945 | This option reduces the latency of the kernel when reacting to | |
946 | real-time or interactive events by allowing a low priority process to | |
947 | be preempted even if it is in kernel mode executing a system call. | |
948 | This allows applications to run more reliably even when the system is | |
949 | under load. | |
950 | ||
951 | Say Y here if you are building a kernel for a desktop, embedded | |
952 | or real-time system. Say N if you are unsure. | |
953 | ||
f8065813 RK |
954 | config HZ |
955 | int | |
956 | default 128 if ARCH_L7200 | |
957 | default 200 if ARCH_EBSA110 || ARCH_S3C2410 | |
bfe65704 | 958 | default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER |
5248c657 | 959 | default AT91_TIMER_HZ if ARCH_AT91 |
f8065813 RK |
960 | default 100 |
961 | ||
704bdda0 NP |
962 | config AEABI |
963 | bool "Use the ARM EABI to compile the kernel" | |
964 | help | |
965 | This option allows for the kernel to be compiled using the latest | |
966 | ARM ABI (aka EABI). This is only useful if you are using a user | |
967 | space environment that is also compiled with EABI. | |
968 | ||
969 | Since there are major incompatibilities between the legacy ABI and | |
970 | EABI, especially with regard to structure member alignment, this | |
971 | option also changes the kernel syscall calling convention to | |
972 | disambiguate both ABIs and allow for backward compatibility support | |
973 | (selected with CONFIG_OABI_COMPAT). | |
974 | ||
975 | To use this you need GCC version 4.0.0 or later. | |
976 | ||
6c90c872 | 977 | config OABI_COMPAT |
a73a3ff1 | 978 | bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)" |
61c484d4 | 979 | depends on AEABI && EXPERIMENTAL |
6c90c872 NP |
980 | default y |
981 | help | |
982 | This option preserves the old syscall interface along with the | |
983 | new (ARM EABI) one. It also provides a compatibility layer to | |
984 | intercept syscalls that have structure arguments which layout | |
985 | in memory differs between the legacy ABI and the new ARM EABI | |
986 | (only for non "thumb" binaries). This option adds a tiny | |
987 | overhead to all syscalls and produces a slightly larger kernel. | |
988 | If you know you'll be using only pure EABI user space then you | |
989 | can say N here. If this option is not selected and you attempt | |
990 | to execute a legacy ABI binary then the result will be | |
991 | UNPREDICTABLE (in fact it can be predicted that it won't work | |
992 | at all). If in doubt say Y. | |
993 | ||
e80d6a24 MG |
994 | config ARCH_FLATMEM_HAS_HOLES |
995 | bool | |
996 | default y | |
997 | depends on FLATMEM | |
998 | ||
07a2f737 | 999 | # Discontigmem is deprecated |
3f22ab27 | 1000 | config ARCH_DISCONTIGMEM_ENABLE |
1da177e4 | 1001 | bool |
1da177e4 | 1002 | |
05944d74 RK |
1003 | config ARCH_SPARSEMEM_ENABLE |
1004 | bool | |
1005 | ||
07a2f737 RK |
1006 | config ARCH_SPARSEMEM_DEFAULT |
1007 | def_bool ARCH_SPARSEMEM_ENABLE | |
1008 | ||
05944d74 | 1009 | config ARCH_SELECT_MEMORY_MODEL |
07a2f737 | 1010 | def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE |
05944d74 | 1011 | |
c80d79d7 YG |
1012 | config NODES_SHIFT |
1013 | int | |
1014 | default "4" if ARCH_LH7A40X | |
1015 | default "2" | |
1016 | depends on NEED_MULTIPLE_NODES | |
1017 | ||
053a96ca NP |
1018 | config HIGHMEM |
1019 | bool "High Memory Support (EXPERIMENTAL)" | |
1020 | depends on MMU && EXPERIMENTAL | |
1021 | help | |
1022 | The address space of ARM processors is only 4 Gigabytes large | |
1023 | and it has to accommodate user address space, kernel address | |
1024 | space as well as some memory mapped IO. That means that, if you | |
1025 | have a large amount of physical memory and/or IO, not all of the | |
1026 | memory can be "permanently mapped" by the kernel. The physical | |
1027 | memory that is not permanently mapped is called "high memory". | |
1028 | ||
1029 | Depending on the selected kernel/user memory split, minimum | |
1030 | vmalloc space and actual amount of RAM, you may not need this | |
1031 | option which should result in a slightly faster kernel. | |
1032 | ||
1033 | If unsure, say n. | |
1034 | ||
3f22ab27 DH |
1035 | source "mm/Kconfig" |
1036 | ||
1da177e4 LT |
1037 | config LEDS |
1038 | bool "Timer and CPU usage LEDs" | |
e055d5bf | 1039 | depends on ARCH_CDB89712 || ARCH_EBSA110 || \ |
1da177e4 LT |
1040 | ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \ |
1041 | ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \ | |
1042 | ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \ | |
73a59c1c | 1043 | ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \ |
25329671 | 1044 | ARCH_AT91 || ARCH_DAVINCI || \ |
817eb210 | 1045 | ARCH_KS8695 || MACH_RD88F5182 |
1da177e4 LT |
1046 | help |
1047 | If you say Y here, the LEDs on your machine will be used | |
1048 | to provide useful information about your current system status. | |
1049 | ||
1050 | If you are compiling a kernel for a NetWinder or EBSA-285, you will | |
1051 | be able to select which LEDs are active using the options below. If | |
1052 | you are compiling a kernel for the EBSA-110 or the LART however, the | |
1053 | red LED will simply flash regularly to indicate that the system is | |
1054 | still functional. It is safe to say Y here if you have a CATS | |
1055 | system, but the driver will do nothing. | |
1056 | ||
1057 | config LEDS_TIMER | |
1058 | bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \ | |
eebdf7d7 DB |
1059 | OMAP_OSK_MISTRAL || MACH_OMAP_H2 \ |
1060 | || MACH_OMAP_PERSEUS2 | |
1da177e4 | 1061 | depends on LEDS |
0567a0c0 | 1062 | depends on !GENERIC_CLOCKEVENTS |
1da177e4 LT |
1063 | default y if ARCH_EBSA110 |
1064 | help | |
1065 | If you say Y here, one of the system LEDs (the green one on the | |
1066 | NetWinder, the amber one on the EBSA285, or the red one on the LART) | |
1067 | will flash regularly to indicate that the system is still | |
1068 | operational. This is mainly useful to kernel hackers who are | |
1069 | debugging unstable kernels. | |
1070 | ||
1071 | The LART uses the same LED for both Timer LED and CPU usage LED | |
1072 | functions. You may choose to use both, but the Timer LED function | |
1073 | will overrule the CPU usage LED. | |
1074 | ||
1075 | config LEDS_CPU | |
1076 | bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \ | |
eebdf7d7 DB |
1077 | !ARCH_OMAP) \ |
1078 | || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \ | |
1079 | || MACH_OMAP_PERSEUS2 | |
1da177e4 LT |
1080 | depends on LEDS |
1081 | help | |
1082 | If you say Y here, the red LED will be used to give a good real | |
1083 | time indication of CPU usage, by lighting whenever the idle task | |
1084 | is not currently executing. | |
1085 | ||
1086 | The LART uses the same LED for both Timer LED and CPU usage LED | |
1087 | functions. You may choose to use both, but the Timer LED function | |
1088 | will overrule the CPU usage LED. | |
1089 | ||
1090 | config ALIGNMENT_TRAP | |
1091 | bool | |
f12d0d7c | 1092 | depends on CPU_CP15_MMU |
1da177e4 LT |
1093 | default y if !ARCH_EBSA110 |
1094 | help | |
84eb8d06 | 1095 | ARM processors cannot fetch/store information which is not |
1da177e4 LT |
1096 | naturally aligned on the bus, i.e., a 4 byte fetch must start at an |
1097 | address divisible by 4. On 32-bit ARM processors, these non-aligned | |
1098 | fetch/store instructions will be emulated in software if you say | |
1099 | here, which has a severe performance impact. This is necessary for | |
1100 | correct operation of some network protocols. With an IP-only | |
1101 | configuration it is safe to say N, otherwise say Y. | |
1102 | ||
1103 | endmenu | |
1104 | ||
1105 | menu "Boot options" | |
1106 | ||
1107 | # Compressed boot loader in ROM. Yes, we really want to ask about | |
1108 | # TEXT and BSS so we preserve their values in the config files. | |
1109 | config ZBOOT_ROM_TEXT | |
1110 | hex "Compressed ROM boot loader base address" | |
1111 | default "0" | |
1112 | help | |
1113 | The physical address at which the ROM-able zImage is to be | |
1114 | placed in the target. Platforms which normally make use of | |
1115 | ROM-able zImage formats normally set this to a suitable | |
1116 | value in their defconfig file. | |
1117 | ||
1118 | If ZBOOT_ROM is not enabled, this has no effect. | |
1119 | ||
1120 | config ZBOOT_ROM_BSS | |
1121 | hex "Compressed ROM boot loader BSS address" | |
1122 | default "0" | |
1123 | help | |
f8c440b2 DF |
1124 | The base address of an area of read/write memory in the target |
1125 | for the ROM-able zImage which must be available while the | |
1126 | decompressor is running. It must be large enough to hold the | |
1127 | entire decompressed kernel plus an additional 128 KiB. | |
1128 | Platforms which normally make use of ROM-able zImage formats | |
1129 | normally set this to a suitable value in their defconfig file. | |
1da177e4 LT |
1130 | |
1131 | If ZBOOT_ROM is not enabled, this has no effect. | |
1132 | ||
1133 | config ZBOOT_ROM | |
1134 | bool "Compressed boot loader in ROM/flash" | |
1135 | depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS | |
1136 | help | |
1137 | Say Y here if you intend to execute your compressed kernel image | |
1138 | (zImage) directly from ROM or flash. If unsure, say N. | |
1139 | ||
1140 | config CMDLINE | |
1141 | string "Default kernel command string" | |
1142 | default "" | |
1143 | help | |
1144 | On some architectures (EBSA110 and CATS), there is currently no way | |
1145 | for the boot loader to pass arguments to the kernel. For these | |
1146 | architectures, you should supply some command-line options at build | |
1147 | time by entering them here. As a minimum, you should specify the | |
1148 | memory size and the root device (e.g., mem=64M root=/dev/nfs). | |
1149 | ||
1150 | config XIP_KERNEL | |
1151 | bool "Kernel Execute-In-Place from ROM" | |
1152 | depends on !ZBOOT_ROM | |
1153 | help | |
1154 | Execute-In-Place allows the kernel to run from non-volatile storage | |
1155 | directly addressable by the CPU, such as NOR flash. This saves RAM | |
1156 | space since the text section of the kernel is not loaded from flash | |
1157 | to RAM. Read-write sections, such as the data section and stack, | |
1158 | are still copied to RAM. The XIP kernel is not compressed since | |
1159 | it has to run directly from flash, so it will take more space to | |
1160 | store it. The flash address used to link the kernel object files, | |
1161 | and for storing it, is configuration dependent. Therefore, if you | |
1162 | say Y here, you must know the proper physical address where to | |
1163 | store the kernel image depending on your own flash memory usage. | |
1164 | ||
1165 | Also note that the make target becomes "make xipImage" rather than | |
1166 | "make zImage" or "make Image". The final kernel binary to put in | |
1167 | ROM memory will be arch/arm/boot/xipImage. | |
1168 | ||
1169 | If unsure, say N. | |
1170 | ||
1171 | config XIP_PHYS_ADDR | |
1172 | hex "XIP Kernel Physical Location" | |
1173 | depends on XIP_KERNEL | |
1174 | default "0x00080000" | |
1175 | help | |
1176 | This is the physical address in your flash memory the kernel will | |
1177 | be linked for and stored to. This address is dependent on your | |
1178 | own flash usage. | |
1179 | ||
c587e4a6 RP |
1180 | config KEXEC |
1181 | bool "Kexec system call (EXPERIMENTAL)" | |
1182 | depends on EXPERIMENTAL | |
1183 | help | |
1184 | kexec is a system call that implements the ability to shutdown your | |
1185 | current kernel, and to start another kernel. It is like a reboot | |
01dd2fbf | 1186 | but it is independent of the system firmware. And like a reboot |
c587e4a6 RP |
1187 | you can start any kernel with it, not just Linux. |
1188 | ||
1189 | It is an ongoing process to be certain the hardware in a machine | |
1190 | is properly shutdown, so do not be surprised if this code does not | |
1191 | initially work for you. It may help to enable device hotplugging | |
1192 | support. | |
1193 | ||
4cd9d6f7 RP |
1194 | config ATAGS_PROC |
1195 | bool "Export atags in procfs" | |
b98d7291 UL |
1196 | depends on KEXEC |
1197 | default y | |
4cd9d6f7 RP |
1198 | help |
1199 | Should the atags used to boot the kernel be exported in an "atags" | |
1200 | file in procfs. Useful with kexec. | |
1201 | ||
1da177e4 LT |
1202 | endmenu |
1203 | ||
ac9d7efc | 1204 | menu "CPU Power Management" |
1da177e4 | 1205 | |
ac9d7efc | 1206 | if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA) |
1da177e4 LT |
1207 | |
1208 | source "drivers/cpufreq/Kconfig" | |
1209 | ||
1210 | config CPU_FREQ_SA1100 | |
1211 | bool | |
7bc35b56 | 1212 | depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT) |
1da177e4 LT |
1213 | default y |
1214 | ||
1215 | config CPU_FREQ_SA1110 | |
1216 | bool | |
1217 | depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3) | |
1218 | default y | |
1219 | ||
1220 | config CPU_FREQ_INTEGRATOR | |
1221 | tristate "CPUfreq driver for ARM Integrator CPUs" | |
1222 | depends on ARCH_INTEGRATOR && CPU_FREQ | |
1223 | default y | |
1224 | help | |
1225 | This enables the CPUfreq driver for ARM Integrator CPUs. | |
1226 | ||
1227 | For details, take a look at <file:Documentation/cpu-freq>. | |
1228 | ||
1229 | If in doubt, say Y. | |
1230 | ||
3c8cd0cc PP |
1231 | config CPU_FREQ_IMX |
1232 | tristate "CPUfreq driver for i.MX CPUs" | |
1233 | depends on ARCH_IMX && CPU_FREQ | |
1234 | default n | |
1235 | help | |
1236 | This enables the CPUfreq driver for i.MX CPUs. | |
1237 | ||
1238 | If in doubt, say N. | |
1239 | ||
1da177e4 LT |
1240 | endif |
1241 | ||
ac9d7efc RK |
1242 | source "drivers/cpuidle/Kconfig" |
1243 | ||
1244 | endmenu | |
1245 | ||
1da177e4 LT |
1246 | menu "Floating point emulation" |
1247 | ||
1248 | comment "At least one emulation must be selected" | |
1249 | ||
1250 | config FPE_NWFPE | |
1251 | bool "NWFPE math emulation" | |
8993a44c | 1252 | depends on !AEABI || OABI_COMPAT |
1da177e4 LT |
1253 | ---help--- |
1254 | Say Y to include the NWFPE floating point emulator in the kernel. | |
1255 | This is necessary to run most binaries. Linux does not currently | |
1256 | support floating point hardware so you need to say Y here even if | |
1257 | your machine has an FPA or floating point co-processor podule. | |
1258 | ||
1259 | You may say N here if you are going to load the Acorn FPEmulator | |
1260 | early in the bootup. | |
1261 | ||
1262 | config FPE_NWFPE_XP | |
1263 | bool "Support extended precision" | |
bedf142b | 1264 | depends on FPE_NWFPE |
1da177e4 LT |
1265 | help |
1266 | Say Y to include 80-bit support in the kernel floating-point | |
1267 | emulator. Otherwise, only 32 and 64-bit support is compiled in. | |
1268 | Note that gcc does not generate 80-bit operations by default, | |
1269 | so in most cases this option only enlarges the size of the | |
1270 | floating point emulator without any good reason. | |
1271 | ||
1272 | You almost surely want to say N here. | |
1273 | ||
1274 | config FPE_FASTFPE | |
1275 | bool "FastFPE math emulation (EXPERIMENTAL)" | |
8993a44c | 1276 | depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL |
1da177e4 LT |
1277 | ---help--- |
1278 | Say Y here to include the FAST floating point emulator in the kernel. | |
1279 | This is an experimental much faster emulator which now also has full | |
1280 | precision for the mantissa. It does not support any exceptions. | |
1281 | It is very simple, and approximately 3-6 times faster than NWFPE. | |
1282 | ||
1283 | It should be sufficient for most programs. It may be not suitable | |
1284 | for scientific calculations, but you have to check this for yourself. | |
1285 | If you do not feel you need a faster FP emulation you should better | |
1286 | choose NWFPE. | |
1287 | ||
1288 | config VFP | |
1289 | bool "VFP-format floating point maths" | |
c00d4ffd | 1290 | depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON |
1da177e4 LT |
1291 | help |
1292 | Say Y to include VFP support code in the kernel. This is needed | |
1293 | if your hardware includes a VFP unit. | |
1294 | ||
1295 | Please see <file:Documentation/arm/VFP/release-notes.txt> for | |
1296 | release notes and additional status information. | |
1297 | ||
1298 | Say N if your target does not have VFP hardware. | |
1299 | ||
25ebee02 CM |
1300 | config VFPv3 |
1301 | bool | |
1302 | depends on VFP | |
1303 | default y if CPU_V7 | |
1304 | ||
b5872db4 CM |
1305 | config NEON |
1306 | bool "Advanced SIMD (NEON) Extension support" | |
1307 | depends on VFPv3 && CPU_V7 | |
1308 | help | |
1309 | Say Y to include support code for NEON, the ARMv7 Advanced SIMD | |
1310 | Extension. | |
1311 | ||
1da177e4 LT |
1312 | endmenu |
1313 | ||
1314 | menu "Userspace binary formats" | |
1315 | ||
1316 | source "fs/Kconfig.binfmt" | |
1317 | ||
1318 | config ARTHUR | |
1319 | tristate "RISC OS personality" | |
704bdda0 | 1320 | depends on !AEABI |
1da177e4 LT |
1321 | help |
1322 | Say Y here to include the kernel code necessary if you want to run | |
1323 | Acorn RISC OS/Arthur binaries under Linux. This code is still very | |
1324 | experimental; if this sounds frightening, say N and sleep in peace. | |
1325 | You can also say M here to compile this support as a module (which | |
1326 | will be called arthur). | |
1327 | ||
1328 | endmenu | |
1329 | ||
1330 | menu "Power management options" | |
1331 | ||
eceab4ac | 1332 | source "kernel/power/Kconfig" |
1da177e4 | 1333 | |
f4cb5700 JB |
1334 | config ARCH_SUSPEND_POSSIBLE |
1335 | def_bool y | |
1336 | ||
1da177e4 LT |
1337 | endmenu |
1338 | ||
d5950b43 SR |
1339 | source "net/Kconfig" |
1340 | ||
1da177e4 LT |
1341 | menu "Device Drivers" |
1342 | ||
1343 | source "drivers/base/Kconfig" | |
1344 | ||
c35bf4a5 PM |
1345 | source "drivers/connector/Kconfig" |
1346 | ||
f12d0d7c | 1347 | if ALIGNMENT_TRAP || !CPU_CP15_MMU |
1da177e4 LT |
1348 | source "drivers/mtd/Kconfig" |
1349 | endif | |
1350 | ||
1351 | source "drivers/parport/Kconfig" | |
1352 | ||
1353 | source "drivers/pnp/Kconfig" | |
1354 | ||
1355 | source "drivers/block/Kconfig" | |
1356 | ||
58273e55 RK |
1357 | # misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4 |
1358 | ||
1359 | source "drivers/misc/Kconfig" | |
1360 | ||
1da177e4 | 1361 | source "drivers/ide/Kconfig" |
1da177e4 LT |
1362 | |
1363 | source "drivers/scsi/Kconfig" | |
1364 | ||
eb370f0b MM |
1365 | source "drivers/ata/Kconfig" |
1366 | ||
1da177e4 LT |
1367 | source "drivers/md/Kconfig" |
1368 | ||
1369 | source "drivers/message/fusion/Kconfig" | |
1370 | ||
1371 | source "drivers/ieee1394/Kconfig" | |
1372 | ||
1373 | source "drivers/message/i2o/Kconfig" | |
1374 | ||
d5950b43 | 1375 | source "drivers/net/Kconfig" |
1da177e4 LT |
1376 | |
1377 | source "drivers/isdn/Kconfig" | |
1378 | ||
1379 | # input before char - char/joystick depends on it. As does USB. | |
1380 | ||
1381 | source "drivers/input/Kconfig" | |
1382 | ||
1383 | source "drivers/char/Kconfig" | |
1384 | ||
1385 | source "drivers/i2c/Kconfig" | |
1386 | ||
8ae12a0d DB |
1387 | source "drivers/spi/Kconfig" |
1388 | ||
a9c5fff5 DB |
1389 | source "drivers/gpio/Kconfig" |
1390 | ||
04916c0e AZ |
1391 | source "drivers/w1/Kconfig" |
1392 | ||
58273e55 RK |
1393 | source "drivers/power/Kconfig" |
1394 | ||
ad2f931d JD |
1395 | source "drivers/hwmon/Kconfig" |
1396 | ||
ac9d7efc RK |
1397 | source "drivers/thermal/Kconfig" |
1398 | ||
70dfa3f8 RK |
1399 | source "drivers/watchdog/Kconfig" |
1400 | ||
58273e55 | 1401 | source "drivers/ssb/Kconfig" |
1da177e4 | 1402 | |
58273e55 | 1403 | #source "drivers/l3/Kconfig" |
1da177e4 | 1404 | |
a4e137ab RK |
1405 | source "drivers/mfd/Kconfig" |
1406 | ||
1da177e4 LT |
1407 | source "drivers/media/Kconfig" |
1408 | ||
1409 | source "drivers/video/Kconfig" | |
1410 | ||
1411 | source "sound/Kconfig" | |
1412 | ||
c2dade51 SH |
1413 | source "drivers/hid/Kconfig" |
1414 | ||
1da177e4 LT |
1415 | source "drivers/usb/Kconfig" |
1416 | ||
2f86c3e6 GKH |
1417 | source "drivers/uwb/Kconfig" |
1418 | ||
1da177e4 LT |
1419 | source "drivers/mmc/Kconfig" |
1420 | ||
ac9d7efc RK |
1421 | source "drivers/memstick/Kconfig" |
1422 | ||
1423 | source "drivers/accessibility/Kconfig" | |
1424 | ||
58273e55 RK |
1425 | source "drivers/leds/Kconfig" |
1426 | ||
12b824fb AZ |
1427 | source "drivers/rtc/Kconfig" |
1428 | ||
5816815f DW |
1429 | source "drivers/dma/Kconfig" |
1430 | ||
abf07b19 DW |
1431 | source "drivers/dca/Kconfig" |
1432 | ||
ac9d7efc RK |
1433 | source "drivers/auxdisplay/Kconfig" |
1434 | ||
ba7e4763 LG |
1435 | source "drivers/regulator/Kconfig" |
1436 | ||
2dc034a8 HJK |
1437 | source "drivers/uio/Kconfig" |
1438 | ||
6e38a2ba DH |
1439 | source "drivers/staging/Kconfig" |
1440 | ||
1da177e4 LT |
1441 | endmenu |
1442 | ||
1443 | source "fs/Kconfig" | |
1444 | ||
1da177e4 LT |
1445 | source "arch/arm/Kconfig.debug" |
1446 | ||
1447 | source "security/Kconfig" | |
1448 | ||
1449 | source "crypto/Kconfig" | |
1450 | ||
1451 | source "lib/Kconfig" |