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 | |
89c52ed4 BD |
129 | config ARCH_HAS_CPUFREQ |
130 | bool | |
131 | help | |
132 | Internal node to signify that the ARCH has CPUFREQ support | |
133 | and that the relevant menu configurations are displayed for | |
134 | it. | |
135 | ||
b89c3b16 AM |
136 | config GENERIC_HWEIGHT |
137 | bool | |
138 | default y | |
139 | ||
1da177e4 LT |
140 | config GENERIC_CALIBRATE_DELAY |
141 | bool | |
142 | default y | |
143 | ||
a08b6b79 Z |
144 | config ARCH_MAY_HAVE_PC_FDC |
145 | bool | |
146 | ||
5ac6da66 CL |
147 | config ZONE_DMA |
148 | bool | |
5ac6da66 | 149 | |
1da177e4 LT |
150 | config GENERIC_ISA_DMA |
151 | bool | |
152 | ||
1da177e4 LT |
153 | config FIQ |
154 | bool | |
155 | ||
034d2f5a AV |
156 | config ARCH_MTD_XIP |
157 | bool | |
158 | ||
60a752ef | 159 | config GENERIC_HARDIRQS_NO__DO_IRQ |
60a752ef PZ |
160 | def_bool y |
161 | ||
c0ffa3a9 MD |
162 | if OPROFILE |
163 | ||
164 | config OPROFILE_ARMV6 | |
165 | def_bool y | |
166 | depends on CPU_V6 && !SMP | |
167 | select OPROFILE_ARM11_CORE | |
168 | ||
169 | config OPROFILE_MPCORE | |
170 | def_bool y | |
171 | depends on CPU_V6 && SMP | |
172 | select OPROFILE_ARM11_CORE | |
173 | ||
174 | config OPROFILE_ARM11_CORE | |
175 | bool | |
176 | ||
d7ac4e28 JP |
177 | config OPROFILE_ARMV7 |
178 | def_bool y | |
179 | depends on CPU_V7 && !SMP | |
180 | bool | |
181 | ||
c0ffa3a9 MD |
182 | endif |
183 | ||
c760fc19 HC |
184 | config VECTORS_BASE |
185 | hex | |
6afd6fae | 186 | default 0xffff0000 if MMU || CPU_HIGH_VECTOR |
c760fc19 HC |
187 | default DRAM_BASE if REMAP_VECTORS_TO_RAM |
188 | default 0x00000000 | |
189 | help | |
190 | The base address of exception vectors. | |
191 | ||
1da177e4 LT |
192 | source "init/Kconfig" |
193 | ||
dc52ddc0 MH |
194 | source "kernel/Kconfig.freezer" |
195 | ||
1da177e4 LT |
196 | menu "System Type" |
197 | ||
198 | choice | |
199 | prompt "ARM system type" | |
6a0e2430 | 200 | default ARCH_VERSATILE |
1da177e4 | 201 | |
4af6fee1 DS |
202 | config ARCH_AAEC2000 |
203 | bool "Agilent AAEC-2000 based" | |
c750815e | 204 | select CPU_ARM920T |
4af6fee1 | 205 | select ARM_AMBA |
9483a578 | 206 | select HAVE_CLK |
4af6fee1 DS |
207 | help |
208 | This enables support for systems based on the Agilent AAEC-2000 | |
209 | ||
210 | config ARCH_INTEGRATOR | |
211 | bool "ARM Ltd. Integrator family" | |
212 | select ARM_AMBA | |
89c52ed4 | 213 | select ARCH_HAS_CPUFREQ |
9483a578 | 214 | select HAVE_CLK |
d72fbdf0 | 215 | select COMMON_CLKDEV |
4af6fee1 DS |
216 | select ICST525 |
217 | help | |
218 | Support for ARM's Integrator platform. | |
219 | ||
220 | config ARCH_REALVIEW | |
221 | bool "ARM Ltd. RealView family" | |
222 | select ARM_AMBA | |
9483a578 | 223 | select HAVE_CLK |
cf30fb4a | 224 | select COMMON_CLKDEV |
4af6fee1 | 225 | select ICST307 |
85802afe | 226 | select GENERIC_TIME |
ae30ceac | 227 | select GENERIC_CLOCKEVENTS |
4af6fee1 DS |
228 | help |
229 | This enables support for ARM Ltd RealView boards. | |
230 | ||
231 | config ARCH_VERSATILE | |
232 | bool "ARM Ltd. Versatile family" | |
233 | select ARM_AMBA | |
234 | select ARM_VIC | |
9483a578 | 235 | select HAVE_CLK |
71a06da0 | 236 | select COMMON_CLKDEV |
4af6fee1 | 237 | select ICST307 |
b49c87c2 | 238 | select GENERIC_TIME |
89df1272 | 239 | select GENERIC_CLOCKEVENTS |
4af6fee1 DS |
240 | help |
241 | This enables support for ARM Ltd Versatile board. | |
242 | ||
8fc5ffa0 AV |
243 | config ARCH_AT91 |
244 | bool "Atmel AT91" | |
0a938b97 | 245 | select GENERIC_GPIO |
f373e8c0 | 246 | select ARCH_REQUIRE_GPIOLIB |
93686ae8 | 247 | select HAVE_CLK |
4af6fee1 | 248 | help |
2b3b3516 AV |
249 | This enables support for systems based on the Atmel AT91RM9200, |
250 | AT91SAM9 and AT91CAP9 processors. | |
4af6fee1 | 251 | |
1da177e4 | 252 | config ARCH_CLPS711X |
4af6fee1 | 253 | bool "Cirrus Logic CLPS711x/EP721x-based" |
c750815e | 254 | select CPU_ARM720T |
f999b8bd MM |
255 | help |
256 | Support for Cirrus Logic 711x/721x based boards. | |
1da177e4 | 257 | |
788c9700 RK |
258 | config ARCH_GEMINI |
259 | bool "Cortina Systems Gemini" | |
260 | select CPU_FA526 | |
261 | select GENERIC_GPIO | |
262 | select ARCH_REQUIRE_GPIOLIB | |
263 | help | |
264 | Support for the Cortina Systems Gemini family SoCs | |
265 | ||
1da177e4 LT |
266 | config ARCH_EBSA110 |
267 | bool "EBSA-110" | |
c750815e | 268 | select CPU_SA110 |
f7e68bbf | 269 | select ISA |
c5eb2a2b | 270 | select NO_IOPORT |
1da177e4 LT |
271 | help |
272 | This is an evaluation board for the StrongARM processor available | |
f6c8965a | 273 | from Digital. It has limited hardware on-board, including an |
1da177e4 LT |
274 | Ethernet interface, two PCMCIA sockets, two serial ports and a |
275 | parallel port. | |
276 | ||
e7736d47 LB |
277 | config ARCH_EP93XX |
278 | bool "EP93xx-based" | |
c750815e | 279 | select CPU_ARM920T |
e7736d47 LB |
280 | select ARM_AMBA |
281 | select ARM_VIC | |
4e9f9fd5 | 282 | select GENERIC_GPIO |
9483a578 | 283 | select HAVE_CLK |
ae696fd5 | 284 | select COMMON_CLKDEV |
7444a72e | 285 | select ARCH_REQUIRE_GPIOLIB |
eb33575c | 286 | select ARCH_HAS_HOLES_MEMORYMODEL |
e7736d47 LB |
287 | help |
288 | This enables support for the Cirrus EP93xx series of CPUs. | |
289 | ||
1da177e4 LT |
290 | config ARCH_FOOTBRIDGE |
291 | bool "FootBridge" | |
c750815e | 292 | select CPU_SA110 |
1da177e4 | 293 | select FOOTBRIDGE |
f999b8bd MM |
294 | help |
295 | Support for systems based on the DC21285 companion chip | |
296 | ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder. | |
1da177e4 | 297 | |
788c9700 RK |
298 | config ARCH_MXC |
299 | bool "Freescale MXC/iMX-based" | |
300 | select GENERIC_TIME | |
301 | select GENERIC_CLOCKEVENTS | |
302 | select ARCH_MTD_XIP | |
303 | select GENERIC_GPIO | |
304 | select ARCH_REQUIRE_GPIOLIB | |
a2ab67fa | 305 | select HAVE_CLK |
788c9700 RK |
306 | help |
307 | Support for Freescale MXC/iMX-based family of processors | |
308 | ||
7bd0f2f5 | 309 | config ARCH_STMP3XXX |
310 | bool "Freescale STMP3xxx" | |
311 | select CPU_ARM926T | |
312 | select HAVE_CLK | |
313 | select COMMON_CLKDEV | |
314 | select ARCH_REQUIRE_GPIOLIB | |
315 | select GENERIC_TIME | |
316 | select GENERIC_CLOCKEVENTS | |
317 | select GENERIC_GPIO | |
318 | select USB_ARCH_HAS_EHCI | |
319 | help | |
320 | Support for systems based on the Freescale 3xxx CPUs. | |
321 | ||
4af6fee1 DS |
322 | config ARCH_NETX |
323 | bool "Hilscher NetX based" | |
c750815e | 324 | select CPU_ARM926T |
4af6fee1 | 325 | select ARM_VIC |
2fcfe6b8 | 326 | select GENERIC_CLOCKEVENTS |
21edecd3 | 327 | select GENERIC_TIME |
f999b8bd | 328 | help |
4af6fee1 DS |
329 | This enables support for systems based on the Hilscher NetX Soc |
330 | ||
331 | config ARCH_H720X | |
332 | bool "Hynix HMS720x-based" | |
c750815e | 333 | select CPU_ARM720T |
4af6fee1 DS |
334 | select ISA_DMA_API |
335 | help | |
336 | This enables support for systems based on the Hynix HMS720x | |
337 | ||
3b938be6 RK |
338 | config ARCH_IOP13XX |
339 | bool "IOP13xx-based" | |
340 | depends on MMU | |
c750815e | 341 | select CPU_XSC3 |
3b938be6 RK |
342 | select PLAT_IOP |
343 | select PCI | |
344 | select ARCH_SUPPORTS_MSI | |
8d5796d2 | 345 | select VMSPLIT_1G |
3b938be6 RK |
346 | help |
347 | Support for Intel's IOP13XX (XScale) family of processors. | |
348 | ||
3f7e5815 LB |
349 | config ARCH_IOP32X |
350 | bool "IOP32x-based" | |
a4f7e763 | 351 | depends on MMU |
c750815e | 352 | select CPU_XSCALE |
7ae1f7ec | 353 | select PLAT_IOP |
f7e68bbf | 354 | select PCI |
63f385cd | 355 | select GENERIC_GPIO |
bb2b180c | 356 | select ARCH_REQUIRE_GPIOLIB |
f999b8bd | 357 | help |
3f7e5815 LB |
358 | Support for Intel's 80219 and IOP32X (XScale) family of |
359 | processors. | |
360 | ||
361 | config ARCH_IOP33X | |
362 | bool "IOP33x-based" | |
363 | depends on MMU | |
c750815e | 364 | select CPU_XSCALE |
7ae1f7ec | 365 | select PLAT_IOP |
3f7e5815 | 366 | select PCI |
63f385cd | 367 | select GENERIC_GPIO |
bb2b180c | 368 | select ARCH_REQUIRE_GPIOLIB |
3f7e5815 LB |
369 | help |
370 | Support for Intel's IOP33X (XScale) family of processors. | |
1da177e4 | 371 | |
3b938be6 RK |
372 | config ARCH_IXP23XX |
373 | bool "IXP23XX-based" | |
a4f7e763 | 374 | depends on MMU |
c750815e | 375 | select CPU_XSC3 |
3b938be6 | 376 | select PCI |
f999b8bd | 377 | help |
3b938be6 | 378 | Support for Intel's IXP23xx (XScale) family of processors. |
1da177e4 LT |
379 | |
380 | config ARCH_IXP2000 | |
381 | bool "IXP2400/2800-based" | |
a4f7e763 | 382 | depends on MMU |
c750815e | 383 | select CPU_XSCALE |
f7e68bbf | 384 | select PCI |
f999b8bd MM |
385 | help |
386 | Support for Intel's IXP2400/2800 (XScale) family of processors. | |
1da177e4 | 387 | |
3b938be6 RK |
388 | config ARCH_IXP4XX |
389 | bool "IXP4xx-based" | |
a4f7e763 | 390 | depends on MMU |
c750815e | 391 | select CPU_XSCALE |
8858e9af | 392 | select GENERIC_GPIO |
3b938be6 RK |
393 | select GENERIC_TIME |
394 | select GENERIC_CLOCKEVENTS | |
485bdde7 | 395 | select DMABOUNCE if PCI |
c4713074 | 396 | help |
3b938be6 | 397 | Support for Intel's IXP4XX (XScale) family of processors. |
c4713074 | 398 | |
1da177e4 LT |
399 | config ARCH_L7200 |
400 | bool "LinkUp-L7200" | |
c750815e | 401 | select CPU_ARM720T |
1da177e4 LT |
402 | select FIQ |
403 | help | |
404 | Say Y here if you intend to run this kernel on a LinkUp Systems | |
405 | L7200 Software Development Board which uses an ARM720T processor. | |
406 | Information on this board can be obtained at: | |
407 | ||
408 | <http://www.linkupsys.com/> | |
409 | ||
410 | If you have any questions or comments about the Linux kernel port | |
411 | to this board, send e-mail to <sjhill@cotw.com>. | |
412 | ||
651c74c7 SB |
413 | config ARCH_KIRKWOOD |
414 | bool "Marvell Kirkwood" | |
c750815e | 415 | select CPU_FEROCEON |
651c74c7 | 416 | select PCI |
4c213430 | 417 | select GENERIC_GPIO |
a8865655 | 418 | select ARCH_REQUIRE_GPIOLIB |
651c74c7 SB |
419 | select GENERIC_TIME |
420 | select GENERIC_CLOCKEVENTS | |
421 | select PLAT_ORION | |
422 | help | |
423 | Support for the following Marvell Kirkwood series SoCs: | |
424 | 88F6180, 88F6192 and 88F6281. | |
425 | ||
777f9beb LB |
426 | config ARCH_LOKI |
427 | bool "Marvell Loki (88RC8480)" | |
c750815e | 428 | select CPU_FEROCEON |
777f9beb LB |
429 | select GENERIC_TIME |
430 | select GENERIC_CLOCKEVENTS | |
431 | select PLAT_ORION | |
432 | help | |
433 | Support for the Marvell Loki (88RC8480) SoC. | |
434 | ||
794d15b2 SS |
435 | config ARCH_MV78XX0 |
436 | bool "Marvell MV78xx0" | |
c750815e | 437 | select CPU_FEROCEON |
794d15b2 | 438 | select PCI |
b95a13d7 | 439 | select GENERIC_GPIO |
a8865655 | 440 | select ARCH_REQUIRE_GPIOLIB |
794d15b2 SS |
441 | select GENERIC_TIME |
442 | select GENERIC_CLOCKEVENTS | |
443 | select PLAT_ORION | |
444 | help | |
445 | Support for the following Marvell MV78xx0 series SoCs: | |
446 | MV781x0, MV782x0. | |
447 | ||
9dd0b194 | 448 | config ARCH_ORION5X |
585cf175 TP |
449 | bool "Marvell Orion" |
450 | depends on MMU | |
c750815e | 451 | select CPU_FEROCEON |
038ee083 | 452 | select PCI |
01af72e4 | 453 | select GENERIC_GPIO |
a8865655 | 454 | select ARCH_REQUIRE_GPIOLIB |
51cbff1d TP |
455 | select GENERIC_TIME |
456 | select GENERIC_CLOCKEVENTS | |
69b02f6a | 457 | select PLAT_ORION |
585cf175 | 458 | help |
9dd0b194 | 459 | Support for the following Marvell Orion 5x series SoCs: |
d2b2a6bb | 460 | Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182), |
d323ade1 | 461 | Orion-2 (5281), Orion-1-90 (6183). |
585cf175 | 462 | |
788c9700 RK |
463 | config ARCH_MMP |
464 | bool "Marvell PXA168/910" | |
465 | depends on MMU | |
466 | select GENERIC_GPIO | |
467 | select ARCH_REQUIRE_GPIOLIB | |
468 | select HAVE_CLK | |
469 | select COMMON_CLKDEV | |
470 | select GENERIC_TIME | |
471 | select GENERIC_CLOCKEVENTS | |
472 | select TICK_ONESHOT | |
473 | select PLAT_PXA | |
474 | help | |
475 | Support for Marvell's PXA168/910 processor line. | |
476 | ||
477 | config ARCH_KS8695 | |
478 | bool "Micrel/Kendin KS8695" | |
479 | select CPU_ARM922T | |
480 | select GENERIC_GPIO | |
481 | select ARCH_REQUIRE_GPIOLIB | |
482 | help | |
483 | Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based | |
484 | System-on-Chip devices. | |
485 | ||
486 | config ARCH_NS9XXX | |
487 | bool "NetSilicon NS9xxx" | |
488 | select CPU_ARM926T | |
489 | select GENERIC_GPIO | |
490 | select GENERIC_TIME | |
491 | select GENERIC_CLOCKEVENTS | |
492 | select HAVE_CLK | |
493 | help | |
494 | Say Y here if you intend to run this kernel on a NetSilicon NS9xxx | |
495 | System. | |
496 | ||
497 | <http://www.digi.com/products/microprocessors/index.jsp> | |
498 | ||
499 | config ARCH_W90X900 | |
500 | bool "Nuvoton W90X900 CPU" | |
501 | select CPU_ARM926T | |
c52d3d68 | 502 | select ARCH_REQUIRE_GPIOLIB |
503 | select GENERIC_GPIO | |
0e4a34bb | 504 | select COMMON_CLKDEV |
788c9700 RK |
505 | help |
506 | Support for Nuvoton (Winbond logic dept.) ARM9 processor,You | |
507 | can login www.mcuos.com or www.nuvoton.com to know more. | |
508 | ||
4af6fee1 DS |
509 | config ARCH_PNX4008 |
510 | bool "Philips Nexperia PNX4008 Mobile" | |
c750815e | 511 | select CPU_ARM926T |
9483a578 | 512 | select HAVE_CLK |
4af6fee1 DS |
513 | help |
514 | This enables support for Philips PNX4008 mobile platform. | |
515 | ||
1da177e4 | 516 | config ARCH_PXA |
2c8086a5 | 517 | bool "PXA2xx/PXA3xx-based" |
a4f7e763 | 518 | depends on MMU |
034d2f5a | 519 | select ARCH_MTD_XIP |
89c52ed4 | 520 | select ARCH_HAS_CPUFREQ |
0a938b97 | 521 | select GENERIC_GPIO |
9483a578 | 522 | select HAVE_CLK |
8c3abc7d | 523 | select COMMON_CLKDEV |
7444a72e | 524 | select ARCH_REQUIRE_GPIOLIB |
45cf5eef | 525 | select GENERIC_TIME |
981d0f39 | 526 | select GENERIC_CLOCKEVENTS |
a88264c2 | 527 | select TICK_ONESHOT |
bd5ce433 | 528 | select PLAT_PXA |
f999b8bd | 529 | help |
2c8086a5 | 530 | Support for Intel/Marvell's PXA2xx/PXA3xx processor line. |
1da177e4 | 531 | |
788c9700 RK |
532 | config ARCH_MSM |
533 | bool "Qualcomm MSM" | |
534 | select CPU_V6 | |
49cbe786 EM |
535 | select GENERIC_TIME |
536 | select GENERIC_CLOCKEVENTS | |
49cbe786 | 537 | help |
788c9700 RK |
538 | Support for Qualcomm MSM7K based systems. This runs on the ARM11 |
539 | apps processor of the MSM7K and depends on a shared memory | |
540 | interface to the ARM9 modem processor which runs the baseband stack | |
541 | and controls some vital subsystems (clock and power control, etc). | |
49cbe786 | 542 | |
1da177e4 LT |
543 | config ARCH_RPC |
544 | bool "RiscPC" | |
545 | select ARCH_ACORN | |
546 | select FIQ | |
547 | select TIMER_ACORN | |
a08b6b79 | 548 | select ARCH_MAY_HAVE_PC_FDC |
341eb781 | 549 | select HAVE_PATA_PLATFORM |
065909b9 | 550 | select ISA_DMA_API |
5ea81769 | 551 | select NO_IOPORT |
07f841b7 | 552 | select ARCH_SPARSEMEM_ENABLE |
1da177e4 LT |
553 | help |
554 | On the Acorn Risc-PC, Linux can support the internal IDE disk and | |
555 | CD-ROM interface, serial and parallel port, and the floppy drive. | |
556 | ||
557 | config ARCH_SA1100 | |
558 | bool "SA1100-based" | |
c750815e | 559 | select CPU_SA1100 |
f7e68bbf | 560 | select ISA |
05944d74 | 561 | select ARCH_SPARSEMEM_ENABLE |
034d2f5a | 562 | select ARCH_MTD_XIP |
89c52ed4 | 563 | select ARCH_HAS_CPUFREQ |
0a938b97 | 564 | select GENERIC_GPIO |
d142b6e7 | 565 | select GENERIC_TIME |
3e238be2 | 566 | select GENERIC_CLOCKEVENTS |
9483a578 | 567 | select HAVE_CLK |
3e238be2 | 568 | select TICK_ONESHOT |
7444a72e | 569 | select ARCH_REQUIRE_GPIOLIB |
f999b8bd MM |
570 | help |
571 | Support for StrongARM 11x0 based boards. | |
1da177e4 LT |
572 | |
573 | config ARCH_S3C2410 | |
e4d06e39 | 574 | bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443" |
0a938b97 | 575 | select GENERIC_GPIO |
9483a578 | 576 | select HAVE_CLK |
1da177e4 LT |
577 | help |
578 | Samsung S3C2410X CPU based systems, such as the Simtec Electronics | |
579 | BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or | |
f6c8965a | 580 | the Samsung SMDK2410 development board (and derivatives). |
1da177e4 | 581 | |
a08ab637 BD |
582 | config ARCH_S3C64XX |
583 | bool "Samsung S3C64XX" | |
584 | select GENERIC_GPIO | |
585 | select HAVE_CLK | |
89c52ed4 | 586 | select ARCH_HAS_CPUFREQ |
a08ab637 BD |
587 | help |
588 | Samsung S3C64XX series based systems | |
589 | ||
1da177e4 LT |
590 | config ARCH_SHARK |
591 | bool "Shark" | |
c750815e | 592 | select CPU_SA110 |
f7e68bbf RK |
593 | select ISA |
594 | select ISA_DMA | |
3bca103a | 595 | select ZONE_DMA |
f7e68bbf | 596 | select PCI |
f999b8bd MM |
597 | help |
598 | Support for the StrongARM based Digital DNARD machine, also known | |
599 | as "Shark" (<http://www.shark-linux.de/shark.html>). | |
1da177e4 LT |
600 | |
601 | config ARCH_LH7A40X | |
602 | bool "Sharp LH7A40X" | |
c750815e | 603 | select CPU_ARM922T |
4ba3f7c5 RK |
604 | select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM |
605 | select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM | |
1da177e4 LT |
606 | help |
607 | Say Y here for systems based on one of the Sharp LH7A40X | |
608 | System on a Chip processors. These CPUs include an ARM922T | |
609 | core with a wide array of integrated devices for | |
610 | hand-held and low-power applications. | |
611 | ||
d98aac75 LW |
612 | config ARCH_U300 |
613 | bool "ST-Ericsson U300 Series" | |
614 | depends on MMU | |
615 | select CPU_ARM926T | |
616 | select ARM_AMBA | |
617 | select ARM_VIC | |
618 | select GENERIC_TIME | |
619 | select GENERIC_CLOCKEVENTS | |
620 | select HAVE_CLK | |
621 | select COMMON_CLKDEV | |
622 | select GENERIC_GPIO | |
623 | help | |
624 | Support for ST-Ericsson U300 series mobile platforms. | |
625 | ||
7c6337e2 KH |
626 | config ARCH_DAVINCI |
627 | bool "TI DaVinci" | |
c750815e | 628 | select CPU_ARM926T |
7c6337e2 KH |
629 | select GENERIC_TIME |
630 | select GENERIC_CLOCKEVENTS | |
3d9edf09 | 631 | select GENERIC_GPIO |
dce1115b | 632 | select ARCH_REQUIRE_GPIOLIB |
9483a578 | 633 | select HAVE_CLK |
3bca103a | 634 | select ZONE_DMA |
9232fcc9 | 635 | select HAVE_IDE |
c5b736d0 | 636 | select COMMON_CLKDEV |
20e9969b | 637 | select GENERIC_ALLOCATOR |
7c6337e2 KH |
638 | help |
639 | Support for TI's DaVinci platform. | |
640 | ||
3b938be6 RK |
641 | config ARCH_OMAP |
642 | bool "TI OMAP" | |
643 | select GENERIC_GPIO | |
9483a578 | 644 | select HAVE_CLK |
7444a72e | 645 | select ARCH_REQUIRE_GPIOLIB |
89c52ed4 | 646 | select ARCH_HAS_CPUFREQ |
3b938be6 | 647 | select GENERIC_TIME |
06cad098 | 648 | select GENERIC_CLOCKEVENTS |
3b938be6 RK |
649 | help |
650 | Support for TI's OMAP platform (OMAP1 and OMAP2). | |
651 | ||
1da177e4 LT |
652 | endchoice |
653 | ||
654 | source "arch/arm/mach-clps711x/Kconfig" | |
655 | ||
e7736d47 LB |
656 | source "arch/arm/mach-ep93xx/Kconfig" |
657 | ||
1da177e4 LT |
658 | source "arch/arm/mach-footbridge/Kconfig" |
659 | ||
59d3a193 PZ |
660 | source "arch/arm/mach-gemini/Kconfig" |
661 | ||
1da177e4 LT |
662 | source "arch/arm/mach-integrator/Kconfig" |
663 | ||
3f7e5815 LB |
664 | source "arch/arm/mach-iop32x/Kconfig" |
665 | ||
666 | source "arch/arm/mach-iop33x/Kconfig" | |
1da177e4 | 667 | |
285f5fa7 DW |
668 | source "arch/arm/mach-iop13xx/Kconfig" |
669 | ||
1da177e4 LT |
670 | source "arch/arm/mach-ixp4xx/Kconfig" |
671 | ||
672 | source "arch/arm/mach-ixp2000/Kconfig" | |
673 | ||
c4713074 LB |
674 | source "arch/arm/mach-ixp23xx/Kconfig" |
675 | ||
777f9beb LB |
676 | source "arch/arm/mach-loki/Kconfig" |
677 | ||
794d15b2 SS |
678 | source "arch/arm/mach-mv78xx0/Kconfig" |
679 | ||
1da177e4 | 680 | source "arch/arm/mach-pxa/Kconfig" |
bd5ce433 | 681 | source "arch/arm/plat-pxa/Kconfig" |
1da177e4 | 682 | |
49cbe786 EM |
683 | source "arch/arm/mach-mmp/Kconfig" |
684 | ||
1da177e4 LT |
685 | source "arch/arm/mach-sa1100/Kconfig" |
686 | ||
d48af15e TL |
687 | source "arch/arm/plat-omap/Kconfig" |
688 | ||
689 | source "arch/arm/mach-omap1/Kconfig" | |
1da177e4 | 690 | |
1dbae815 TL |
691 | source "arch/arm/mach-omap2/Kconfig" |
692 | ||
9dd0b194 | 693 | source "arch/arm/mach-orion5x/Kconfig" |
585cf175 | 694 | |
651c74c7 | 695 | source "arch/arm/mach-kirkwood/Kconfig" |
585cf175 | 696 | |
a21765a7 | 697 | source "arch/arm/plat-s3c24xx/Kconfig" |
a08ab637 | 698 | source "arch/arm/plat-s3c64xx/Kconfig" |
d58153d8 | 699 | source "arch/arm/plat-s3c/Kconfig" |
a21765a7 BD |
700 | |
701 | if ARCH_S3C2410 | |
702 | source "arch/arm/mach-s3c2400/Kconfig" | |
1da177e4 | 703 | source "arch/arm/mach-s3c2410/Kconfig" |
a21765a7 BD |
704 | source "arch/arm/mach-s3c2412/Kconfig" |
705 | source "arch/arm/mach-s3c2440/Kconfig" | |
706 | source "arch/arm/mach-s3c2442/Kconfig" | |
e4d06e39 | 707 | source "arch/arm/mach-s3c2443/Kconfig" |
a21765a7 | 708 | endif |
1da177e4 | 709 | |
a08ab637 BD |
710 | if ARCH_S3C64XX |
711 | source "arch/arm/mach-s3c6400/Kconfig" | |
712 | source "arch/arm/mach-s3c6410/Kconfig" | |
713 | endif | |
714 | ||
7bd0f2f5 | 715 | source "arch/arm/plat-stmp3xxx/Kconfig" |
716 | ||
1da177e4 LT |
717 | source "arch/arm/mach-lh7a40x/Kconfig" |
718 | ||
1da177e4 LT |
719 | source "arch/arm/mach-h720x/Kconfig" |
720 | ||
721 | source "arch/arm/mach-versatile/Kconfig" | |
722 | ||
038c5b60 BN |
723 | source "arch/arm/mach-aaec2000/Kconfig" |
724 | ||
8ad68bbf CM |
725 | source "arch/arm/mach-realview/Kconfig" |
726 | ||
9d041268 | 727 | source "arch/arm/mach-at91/Kconfig" |
73a59c1c | 728 | |
52c543f9 QJ |
729 | source "arch/arm/plat-mxc/Kconfig" |
730 | ||
bb6d8c88 SH |
731 | source "arch/arm/mach-netx/Kconfig" |
732 | ||
9918cda5 UKK |
733 | source "arch/arm/mach-ns9xxx/Kconfig" |
734 | ||
7c6337e2 KH |
735 | source "arch/arm/mach-davinci/Kconfig" |
736 | ||
c53c9cf6 AV |
737 | source "arch/arm/mach-ks8695/Kconfig" |
738 | ||
9e73c84c BS |
739 | source "arch/arm/mach-msm/Kconfig" |
740 | ||
d98aac75 LW |
741 | source "arch/arm/mach-u300/Kconfig" |
742 | ||
7ec80ddf | 743 | source "arch/arm/mach-w90x900/Kconfig" |
744 | ||
1da177e4 LT |
745 | # Definitions to make life easier |
746 | config ARCH_ACORN | |
747 | bool | |
748 | ||
7ae1f7ec LB |
749 | config PLAT_IOP |
750 | bool | |
751 | ||
69b02f6a LB |
752 | config PLAT_ORION |
753 | bool | |
754 | ||
bd5ce433 EM |
755 | config PLAT_PXA |
756 | bool | |
757 | ||
1da177e4 LT |
758 | source arch/arm/mm/Kconfig |
759 | ||
afe4b25e LB |
760 | config IWMMXT |
761 | bool "Enable iWMMXt support" | |
40305a58 EM |
762 | depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK |
763 | default y if PXA27x || PXA3xx || ARCH_MMP | |
afe4b25e LB |
764 | help |
765 | Enable support for iWMMXt context switching at run time if | |
766 | running on a CPU that supports it. | |
767 | ||
1da177e4 LT |
768 | # bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER |
769 | config XSCALE_PMU | |
770 | bool | |
771 | depends on CPU_XSCALE && !XSCALE_PMU_TIMER | |
772 | default y | |
773 | ||
3b93e7b0 HC |
774 | if !MMU |
775 | source "arch/arm/Kconfig-nommu" | |
776 | endif | |
777 | ||
9cba3ccc CM |
778 | config ARM_ERRATA_411920 |
779 | bool "ARM errata: Invalidation of the Instruction Cache operation can fail" | |
780 | depends on CPU_V6 && !SMP | |
781 | help | |
782 | Invalidation of the Instruction Cache operation can | |
783 | fail. This erratum is present in 1136 (before r1p4), 1156 and 1176. | |
784 | It does not affect the MPCore. This option enables the ARM Ltd. | |
785 | recommended workaround. | |
786 | ||
7ce236fc CM |
787 | config ARM_ERRATA_430973 |
788 | bool "ARM errata: Stale prediction on replaced interworking branch" | |
789 | depends on CPU_V7 | |
790 | help | |
791 | This option enables the workaround for the 430973 Cortex-A8 | |
792 | (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb | |
793 | interworking branch is replaced with another code sequence at the | |
794 | same virtual address, whether due to self-modifying code or virtual | |
795 | to physical address re-mapping, Cortex-A8 does not recover from the | |
796 | stale interworking branch prediction. This results in Cortex-A8 | |
797 | executing the new code sequence in the incorrect ARM or Thumb state. | |
798 | The workaround enables the BTB/BTAC operations by setting ACTLR.IBE | |
799 | and also flushes the branch target cache at every context switch. | |
800 | Note that setting specific bits in the ACTLR register may not be | |
801 | available in non-secure mode. | |
802 | ||
855c551f CM |
803 | config ARM_ERRATA_458693 |
804 | bool "ARM errata: Processor deadlock when a false hazard is created" | |
805 | depends on CPU_V7 | |
806 | help | |
807 | This option enables the workaround for the 458693 Cortex-A8 (r2p0) | |
808 | erratum. For very specific sequences of memory operations, it is | |
809 | possible for a hazard condition intended for a cache line to instead | |
810 | be incorrectly associated with a different cache line. This false | |
811 | hazard might then cause a processor deadlock. The workaround enables | |
812 | the L1 caching of the NEON accesses and disables the PLD instruction | |
813 | in the ACTLR register. Note that setting specific bits in the ACTLR | |
814 | register may not be available in non-secure mode. | |
815 | ||
0516e464 CM |
816 | config ARM_ERRATA_460075 |
817 | bool "ARM errata: Data written to the L2 cache can be overwritten with stale data" | |
818 | depends on CPU_V7 | |
819 | help | |
820 | This option enables the workaround for the 460075 Cortex-A8 (r2p0) | |
821 | erratum. Any asynchronous access to the L2 cache may encounter a | |
822 | situation in which recent store transactions to the L2 cache are lost | |
823 | and overwritten with stale memory contents from external memory. The | |
824 | workaround disables the write-allocate mode for the L2 cache via the | |
825 | ACTLR register. Note that setting specific bits in the ACTLR register | |
826 | may not be available in non-secure mode. | |
827 | ||
1da177e4 LT |
828 | endmenu |
829 | ||
830 | source "arch/arm/common/Kconfig" | |
831 | ||
832 | config FORCE_MAX_ZONEORDER | |
833 | int | |
834 | depends on SA1111 | |
835 | default "9" | |
836 | ||
837 | menu "Bus support" | |
838 | ||
839 | config ARM_AMBA | |
840 | bool | |
841 | ||
842 | config ISA | |
843 | bool | |
1da177e4 LT |
844 | help |
845 | Find out whether you have ISA slots on your motherboard. ISA is the | |
846 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
847 | inside your box. Other bus systems are PCI, EISA, MicroChannel | |
848 | (MCA) or VESA. ISA is an older system, now being displaced by PCI; | |
849 | newer boards don't support it. If you have ISA, say Y, otherwise N. | |
850 | ||
065909b9 | 851 | # Select ISA DMA controller support |
1da177e4 LT |
852 | config ISA_DMA |
853 | bool | |
065909b9 | 854 | select ISA_DMA_API |
1da177e4 | 855 | |
065909b9 | 856 | # Select ISA DMA interface |
5cae841b AV |
857 | config ISA_DMA_API |
858 | bool | |
5cae841b | 859 | |
1da177e4 | 860 | config PCI |
a0113a99 | 861 | bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE |
1da177e4 LT |
862 | help |
863 | Find out whether you have a PCI motherboard. PCI is the name of a | |
864 | bus system, i.e. the way the CPU talks to the other stuff inside | |
865 | your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or | |
866 | VESA. If you have PCI, say Y, otherwise N. | |
867 | ||
36e23590 MW |
868 | config PCI_SYSCALL |
869 | def_bool PCI | |
870 | ||
1da177e4 LT |
871 | # Select the host bridge type |
872 | config PCI_HOST_VIA82C505 | |
873 | bool | |
874 | depends on PCI && ARCH_SHARK | |
875 | default y | |
876 | ||
a0113a99 MR |
877 | config PCI_HOST_ITE8152 |
878 | bool | |
879 | depends on PCI && MACH_ARMCORE | |
880 | default y | |
881 | select DMABOUNCE | |
882 | ||
1da177e4 LT |
883 | source "drivers/pci/Kconfig" |
884 | ||
885 | source "drivers/pcmcia/Kconfig" | |
886 | ||
887 | endmenu | |
888 | ||
889 | menu "Kernel Features" | |
890 | ||
0567a0c0 KH |
891 | source "kernel/time/Kconfig" |
892 | ||
1da177e4 LT |
893 | config SMP |
894 | bool "Symmetric Multi-Processing (EXPERIMENTAL)" | |
42578c82 RK |
895 | depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\ |
896 | MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4) | |
bc28248e | 897 | depends on GENERIC_CLOCKEVENTS |
f6dd9fa5 | 898 | select USE_GENERIC_SMP_HELPERS |
934f8be7 | 899 | select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4) |
1da177e4 LT |
900 | help |
901 | This enables support for systems with more than one CPU. If you have | |
902 | a system with only one CPU, like most personal computers, say N. If | |
903 | you have a system with more than one CPU, say Y. | |
904 | ||
905 | If you say N here, the kernel will run on single and multiprocessor | |
906 | machines, but will use only one CPU of a multiprocessor machine. If | |
907 | you say Y here, the kernel will run on many, but not all, single | |
908 | processor machines. On a single processor machine, the kernel will | |
909 | run faster if you say N here. | |
910 | ||
03502faa | 911 | See also <file:Documentation/i386/IO-APIC.txt>, |
1da177e4 LT |
912 | <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at |
913 | <http://www.linuxdoc.org/docs.html#howto>. | |
914 | ||
915 | If you don't know what to do here, say N. | |
916 | ||
a8cbcd92 RK |
917 | config HAVE_ARM_SCU |
918 | bool | |
919 | depends on SMP | |
920 | help | |
921 | This option enables support for the ARM system coherency unit | |
922 | ||
f32f4ce2 RK |
923 | config HAVE_ARM_TWD |
924 | bool | |
925 | depends on SMP | |
926 | help | |
927 | This options enables support for the ARM timer and watchdog unit | |
928 | ||
8d5796d2 LB |
929 | choice |
930 | prompt "Memory split" | |
931 | default VMSPLIT_3G | |
932 | help | |
933 | Select the desired split between kernel and user memory. | |
934 | ||
935 | If you are not absolutely sure what you are doing, leave this | |
936 | option alone! | |
937 | ||
938 | config VMSPLIT_3G | |
939 | bool "3G/1G user/kernel split" | |
940 | config VMSPLIT_2G | |
941 | bool "2G/2G user/kernel split" | |
942 | config VMSPLIT_1G | |
943 | bool "1G/3G user/kernel split" | |
944 | endchoice | |
945 | ||
946 | config PAGE_OFFSET | |
947 | hex | |
948 | default 0x40000000 if VMSPLIT_1G | |
949 | default 0x80000000 if VMSPLIT_2G | |
950 | default 0xC0000000 | |
951 | ||
1da177e4 LT |
952 | config NR_CPUS |
953 | int "Maximum number of CPUs (2-32)" | |
954 | range 2 32 | |
955 | depends on SMP | |
956 | default "4" | |
957 | ||
a054a811 RK |
958 | config HOTPLUG_CPU |
959 | bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" | |
960 | depends on SMP && HOTPLUG && EXPERIMENTAL | |
961 | help | |
962 | Say Y here to experiment with turning CPUs off and on. CPUs | |
963 | can be controlled through /sys/devices/system/cpu. | |
964 | ||
37ee16ae RK |
965 | config LOCAL_TIMERS |
966 | bool "Use local timer interrupts" | |
42578c82 RK |
967 | depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \ |
968 | REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4) | |
37ee16ae | 969 | default y |
934f8be7 | 970 | select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4) |
37ee16ae RK |
971 | help |
972 | Enable support for local timers on SMP platforms, rather then the | |
973 | legacy IPI broadcast method. Local timers allows the system | |
974 | accounting to be spread across the timer interval, preventing a | |
975 | "thundering herd" at every timer tick. | |
976 | ||
1da177e4 LT |
977 | config PREEMPT |
978 | bool "Preemptible Kernel (EXPERIMENTAL)" | |
979 | depends on EXPERIMENTAL | |
980 | help | |
981 | This option reduces the latency of the kernel when reacting to | |
982 | real-time or interactive events by allowing a low priority process to | |
983 | be preempted even if it is in kernel mode executing a system call. | |
984 | This allows applications to run more reliably even when the system is | |
985 | under load. | |
986 | ||
987 | Say Y here if you are building a kernel for a desktop, embedded | |
988 | or real-time system. Say N if you are unsure. | |
989 | ||
f8065813 RK |
990 | config HZ |
991 | int | |
992 | default 128 if ARCH_L7200 | |
993 | default 200 if ARCH_EBSA110 || ARCH_S3C2410 | |
bfe65704 | 994 | default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER |
5248c657 | 995 | default AT91_TIMER_HZ if ARCH_AT91 |
f8065813 RK |
996 | default 100 |
997 | ||
704bdda0 NP |
998 | config AEABI |
999 | bool "Use the ARM EABI to compile the kernel" | |
1000 | help | |
1001 | This option allows for the kernel to be compiled using the latest | |
1002 | ARM ABI (aka EABI). This is only useful if you are using a user | |
1003 | space environment that is also compiled with EABI. | |
1004 | ||
1005 | Since there are major incompatibilities between the legacy ABI and | |
1006 | EABI, especially with regard to structure member alignment, this | |
1007 | option also changes the kernel syscall calling convention to | |
1008 | disambiguate both ABIs and allow for backward compatibility support | |
1009 | (selected with CONFIG_OABI_COMPAT). | |
1010 | ||
1011 | To use this you need GCC version 4.0.0 or later. | |
1012 | ||
6c90c872 | 1013 | config OABI_COMPAT |
a73a3ff1 | 1014 | bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)" |
61c484d4 | 1015 | depends on AEABI && EXPERIMENTAL |
6c90c872 NP |
1016 | default y |
1017 | help | |
1018 | This option preserves the old syscall interface along with the | |
1019 | new (ARM EABI) one. It also provides a compatibility layer to | |
1020 | intercept syscalls that have structure arguments which layout | |
1021 | in memory differs between the legacy ABI and the new ARM EABI | |
1022 | (only for non "thumb" binaries). This option adds a tiny | |
1023 | overhead to all syscalls and produces a slightly larger kernel. | |
1024 | If you know you'll be using only pure EABI user space then you | |
1025 | can say N here. If this option is not selected and you attempt | |
1026 | to execute a legacy ABI binary then the result will be | |
1027 | UNPREDICTABLE (in fact it can be predicted that it won't work | |
1028 | at all). If in doubt say Y. | |
1029 | ||
eb33575c | 1030 | config ARCH_HAS_HOLES_MEMORYMODEL |
e80d6a24 | 1031 | bool |
e80d6a24 | 1032 | |
07a2f737 | 1033 | # Discontigmem is deprecated |
3f22ab27 | 1034 | config ARCH_DISCONTIGMEM_ENABLE |
1da177e4 | 1035 | bool |
1da177e4 | 1036 | |
05944d74 RK |
1037 | config ARCH_SPARSEMEM_ENABLE |
1038 | bool | |
1039 | ||
07a2f737 RK |
1040 | config ARCH_SPARSEMEM_DEFAULT |
1041 | def_bool ARCH_SPARSEMEM_ENABLE | |
1042 | ||
05944d74 | 1043 | config ARCH_SELECT_MEMORY_MODEL |
07a2f737 | 1044 | def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE |
05944d74 | 1045 | |
c80d79d7 YG |
1046 | config NODES_SHIFT |
1047 | int | |
1048 | default "4" if ARCH_LH7A40X | |
1049 | default "2" | |
1050 | depends on NEED_MULTIPLE_NODES | |
1051 | ||
053a96ca NP |
1052 | config HIGHMEM |
1053 | bool "High Memory Support (EXPERIMENTAL)" | |
1054 | depends on MMU && EXPERIMENTAL | |
1055 | help | |
1056 | The address space of ARM processors is only 4 Gigabytes large | |
1057 | and it has to accommodate user address space, kernel address | |
1058 | space as well as some memory mapped IO. That means that, if you | |
1059 | have a large amount of physical memory and/or IO, not all of the | |
1060 | memory can be "permanently mapped" by the kernel. The physical | |
1061 | memory that is not permanently mapped is called "high memory". | |
1062 | ||
1063 | Depending on the selected kernel/user memory split, minimum | |
1064 | vmalloc space and actual amount of RAM, you may not need this | |
1065 | option which should result in a slightly faster kernel. | |
1066 | ||
1067 | If unsure, say n. | |
1068 | ||
3f22ab27 DH |
1069 | source "mm/Kconfig" |
1070 | ||
1da177e4 LT |
1071 | config LEDS |
1072 | bool "Timer and CPU usage LEDs" | |
e055d5bf | 1073 | depends on ARCH_CDB89712 || ARCH_EBSA110 || \ |
8c8fdbc9 | 1074 | ARCH_EBSA285 || ARCH_INTEGRATOR || \ |
1da177e4 LT |
1075 | ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \ |
1076 | ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \ | |
73a59c1c | 1077 | ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \ |
25329671 | 1078 | ARCH_AT91 || ARCH_DAVINCI || \ |
ff3042fb | 1079 | ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW |
1da177e4 LT |
1080 | help |
1081 | If you say Y here, the LEDs on your machine will be used | |
1082 | to provide useful information about your current system status. | |
1083 | ||
1084 | If you are compiling a kernel for a NetWinder or EBSA-285, you will | |
1085 | be able to select which LEDs are active using the options below. If | |
1086 | you are compiling a kernel for the EBSA-110 or the LART however, the | |
1087 | red LED will simply flash regularly to indicate that the system is | |
1088 | still functional. It is safe to say Y here if you have a CATS | |
1089 | system, but the driver will do nothing. | |
1090 | ||
1091 | config LEDS_TIMER | |
1092 | bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \ | |
eebdf7d7 DB |
1093 | OMAP_OSK_MISTRAL || MACH_OMAP_H2 \ |
1094 | || MACH_OMAP_PERSEUS2 | |
1da177e4 | 1095 | depends on LEDS |
0567a0c0 | 1096 | depends on !GENERIC_CLOCKEVENTS |
1da177e4 LT |
1097 | default y if ARCH_EBSA110 |
1098 | help | |
1099 | If you say Y here, one of the system LEDs (the green one on the | |
1100 | NetWinder, the amber one on the EBSA285, or the red one on the LART) | |
1101 | will flash regularly to indicate that the system is still | |
1102 | operational. This is mainly useful to kernel hackers who are | |
1103 | debugging unstable kernels. | |
1104 | ||
1105 | The LART uses the same LED for both Timer LED and CPU usage LED | |
1106 | functions. You may choose to use both, but the Timer LED function | |
1107 | will overrule the CPU usage LED. | |
1108 | ||
1109 | config LEDS_CPU | |
1110 | bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \ | |
eebdf7d7 DB |
1111 | !ARCH_OMAP) \ |
1112 | || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \ | |
1113 | || MACH_OMAP_PERSEUS2 | |
1da177e4 LT |
1114 | depends on LEDS |
1115 | help | |
1116 | If you say Y here, the red LED will be used to give a good real | |
1117 | time indication of CPU usage, by lighting whenever the idle task | |
1118 | is not currently executing. | |
1119 | ||
1120 | The LART uses the same LED for both Timer LED and CPU usage LED | |
1121 | functions. You may choose to use both, but the Timer LED function | |
1122 | will overrule the CPU usage LED. | |
1123 | ||
1124 | config ALIGNMENT_TRAP | |
1125 | bool | |
f12d0d7c | 1126 | depends on CPU_CP15_MMU |
1da177e4 LT |
1127 | default y if !ARCH_EBSA110 |
1128 | help | |
84eb8d06 | 1129 | ARM processors cannot fetch/store information which is not |
1da177e4 LT |
1130 | naturally aligned on the bus, i.e., a 4 byte fetch must start at an |
1131 | address divisible by 4. On 32-bit ARM processors, these non-aligned | |
1132 | fetch/store instructions will be emulated in software if you say | |
1133 | here, which has a severe performance impact. This is necessary for | |
1134 | correct operation of some network protocols. With an IP-only | |
1135 | configuration it is safe to say N, otherwise say Y. | |
1136 | ||
39ec58f3 LB |
1137 | config UACCESS_WITH_MEMCPY |
1138 | bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)" | |
1139 | depends on MMU && EXPERIMENTAL | |
1140 | default y if CPU_FEROCEON | |
1141 | help | |
1142 | Implement faster copy_to_user and clear_user methods for CPU | |
1143 | cores where a 8-word STM instruction give significantly higher | |
1144 | memory write throughput than a sequence of individual 32bit stores. | |
1145 | ||
1146 | A possible side effect is a slight increase in scheduling latency | |
1147 | between threads sharing the same address space if they invoke | |
1148 | such copy operations with large buffers. | |
1149 | ||
1150 | However, if the CPU data cache is using a write-allocate mode, | |
1151 | this option is unlikely to provide any performance gain. | |
1152 | ||
1da177e4 LT |
1153 | endmenu |
1154 | ||
1155 | menu "Boot options" | |
1156 | ||
1157 | # Compressed boot loader in ROM. Yes, we really want to ask about | |
1158 | # TEXT and BSS so we preserve their values in the config files. | |
1159 | config ZBOOT_ROM_TEXT | |
1160 | hex "Compressed ROM boot loader base address" | |
1161 | default "0" | |
1162 | help | |
1163 | The physical address at which the ROM-able zImage is to be | |
1164 | placed in the target. Platforms which normally make use of | |
1165 | ROM-able zImage formats normally set this to a suitable | |
1166 | value in their defconfig file. | |
1167 | ||
1168 | If ZBOOT_ROM is not enabled, this has no effect. | |
1169 | ||
1170 | config ZBOOT_ROM_BSS | |
1171 | hex "Compressed ROM boot loader BSS address" | |
1172 | default "0" | |
1173 | help | |
f8c440b2 DF |
1174 | The base address of an area of read/write memory in the target |
1175 | for the ROM-able zImage which must be available while the | |
1176 | decompressor is running. It must be large enough to hold the | |
1177 | entire decompressed kernel plus an additional 128 KiB. | |
1178 | Platforms which normally make use of ROM-able zImage formats | |
1179 | normally set this to a suitable value in their defconfig file. | |
1da177e4 LT |
1180 | |
1181 | If ZBOOT_ROM is not enabled, this has no effect. | |
1182 | ||
1183 | config ZBOOT_ROM | |
1184 | bool "Compressed boot loader in ROM/flash" | |
1185 | depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS | |
1186 | help | |
1187 | Say Y here if you intend to execute your compressed kernel image | |
1188 | (zImage) directly from ROM or flash. If unsure, say N. | |
1189 | ||
1190 | config CMDLINE | |
1191 | string "Default kernel command string" | |
1192 | default "" | |
1193 | help | |
1194 | On some architectures (EBSA110 and CATS), there is currently no way | |
1195 | for the boot loader to pass arguments to the kernel. For these | |
1196 | architectures, you should supply some command-line options at build | |
1197 | time by entering them here. As a minimum, you should specify the | |
1198 | memory size and the root device (e.g., mem=64M root=/dev/nfs). | |
1199 | ||
1200 | config XIP_KERNEL | |
1201 | bool "Kernel Execute-In-Place from ROM" | |
1202 | depends on !ZBOOT_ROM | |
1203 | help | |
1204 | Execute-In-Place allows the kernel to run from non-volatile storage | |
1205 | directly addressable by the CPU, such as NOR flash. This saves RAM | |
1206 | space since the text section of the kernel is not loaded from flash | |
1207 | to RAM. Read-write sections, such as the data section and stack, | |
1208 | are still copied to RAM. The XIP kernel is not compressed since | |
1209 | it has to run directly from flash, so it will take more space to | |
1210 | store it. The flash address used to link the kernel object files, | |
1211 | and for storing it, is configuration dependent. Therefore, if you | |
1212 | say Y here, you must know the proper physical address where to | |
1213 | store the kernel image depending on your own flash memory usage. | |
1214 | ||
1215 | Also note that the make target becomes "make xipImage" rather than | |
1216 | "make zImage" or "make Image". The final kernel binary to put in | |
1217 | ROM memory will be arch/arm/boot/xipImage. | |
1218 | ||
1219 | If unsure, say N. | |
1220 | ||
1221 | config XIP_PHYS_ADDR | |
1222 | hex "XIP Kernel Physical Location" | |
1223 | depends on XIP_KERNEL | |
1224 | default "0x00080000" | |
1225 | help | |
1226 | This is the physical address in your flash memory the kernel will | |
1227 | be linked for and stored to. This address is dependent on your | |
1228 | own flash usage. | |
1229 | ||
c587e4a6 RP |
1230 | config KEXEC |
1231 | bool "Kexec system call (EXPERIMENTAL)" | |
1232 | depends on EXPERIMENTAL | |
1233 | help | |
1234 | kexec is a system call that implements the ability to shutdown your | |
1235 | current kernel, and to start another kernel. It is like a reboot | |
01dd2fbf | 1236 | but it is independent of the system firmware. And like a reboot |
c587e4a6 RP |
1237 | you can start any kernel with it, not just Linux. |
1238 | ||
1239 | It is an ongoing process to be certain the hardware in a machine | |
1240 | is properly shutdown, so do not be surprised if this code does not | |
1241 | initially work for you. It may help to enable device hotplugging | |
1242 | support. | |
1243 | ||
4cd9d6f7 RP |
1244 | config ATAGS_PROC |
1245 | bool "Export atags in procfs" | |
b98d7291 UL |
1246 | depends on KEXEC |
1247 | default y | |
4cd9d6f7 RP |
1248 | help |
1249 | Should the atags used to boot the kernel be exported in an "atags" | |
1250 | file in procfs. Useful with kexec. | |
1251 | ||
1da177e4 LT |
1252 | endmenu |
1253 | ||
ac9d7efc | 1254 | menu "CPU Power Management" |
1da177e4 | 1255 | |
89c52ed4 | 1256 | if ARCH_HAS_CPUFREQ |
1da177e4 LT |
1257 | |
1258 | source "drivers/cpufreq/Kconfig" | |
1259 | ||
1260 | config CPU_FREQ_SA1100 | |
1261 | bool | |
7bc35b56 | 1262 | depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT) |
1da177e4 LT |
1263 | default y |
1264 | ||
1265 | config CPU_FREQ_SA1110 | |
1266 | bool | |
1267 | depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3) | |
1268 | default y | |
1269 | ||
1270 | config CPU_FREQ_INTEGRATOR | |
1271 | tristate "CPUfreq driver for ARM Integrator CPUs" | |
1272 | depends on ARCH_INTEGRATOR && CPU_FREQ | |
1273 | default y | |
1274 | help | |
1275 | This enables the CPUfreq driver for ARM Integrator CPUs. | |
1276 | ||
1277 | For details, take a look at <file:Documentation/cpu-freq>. | |
1278 | ||
1279 | If in doubt, say Y. | |
1280 | ||
9e2697ff RK |
1281 | config CPU_FREQ_PXA |
1282 | bool | |
1283 | depends on CPU_FREQ && ARCH_PXA && PXA25x | |
1284 | default y | |
1285 | select CPU_FREQ_DEFAULT_GOV_USERSPACE | |
1286 | ||
b3748ddd MB |
1287 | config CPU_FREQ_S3C64XX |
1288 | bool "CPUfreq support for Samsung S3C64XX CPUs" | |
1289 | depends on CPU_FREQ && CPU_S3C6410 | |
1290 | ||
1da177e4 LT |
1291 | endif |
1292 | ||
ac9d7efc RK |
1293 | source "drivers/cpuidle/Kconfig" |
1294 | ||
1295 | endmenu | |
1296 | ||
1da177e4 LT |
1297 | menu "Floating point emulation" |
1298 | ||
1299 | comment "At least one emulation must be selected" | |
1300 | ||
1301 | config FPE_NWFPE | |
1302 | bool "NWFPE math emulation" | |
8993a44c | 1303 | depends on !AEABI || OABI_COMPAT |
1da177e4 LT |
1304 | ---help--- |
1305 | Say Y to include the NWFPE floating point emulator in the kernel. | |
1306 | This is necessary to run most binaries. Linux does not currently | |
1307 | support floating point hardware so you need to say Y here even if | |
1308 | your machine has an FPA or floating point co-processor podule. | |
1309 | ||
1310 | You may say N here if you are going to load the Acorn FPEmulator | |
1311 | early in the bootup. | |
1312 | ||
1313 | config FPE_NWFPE_XP | |
1314 | bool "Support extended precision" | |
bedf142b | 1315 | depends on FPE_NWFPE |
1da177e4 LT |
1316 | help |
1317 | Say Y to include 80-bit support in the kernel floating-point | |
1318 | emulator. Otherwise, only 32 and 64-bit support is compiled in. | |
1319 | Note that gcc does not generate 80-bit operations by default, | |
1320 | so in most cases this option only enlarges the size of the | |
1321 | floating point emulator without any good reason. | |
1322 | ||
1323 | You almost surely want to say N here. | |
1324 | ||
1325 | config FPE_FASTFPE | |
1326 | bool "FastFPE math emulation (EXPERIMENTAL)" | |
8993a44c | 1327 | depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL |
1da177e4 LT |
1328 | ---help--- |
1329 | Say Y here to include the FAST floating point emulator in the kernel. | |
1330 | This is an experimental much faster emulator which now also has full | |
1331 | precision for the mantissa. It does not support any exceptions. | |
1332 | It is very simple, and approximately 3-6 times faster than NWFPE. | |
1333 | ||
1334 | It should be sufficient for most programs. It may be not suitable | |
1335 | for scientific calculations, but you have to check this for yourself. | |
1336 | If you do not feel you need a faster FP emulation you should better | |
1337 | choose NWFPE. | |
1338 | ||
1339 | config VFP | |
1340 | bool "VFP-format floating point maths" | |
c00d4ffd | 1341 | depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON |
1da177e4 LT |
1342 | help |
1343 | Say Y to include VFP support code in the kernel. This is needed | |
1344 | if your hardware includes a VFP unit. | |
1345 | ||
1346 | Please see <file:Documentation/arm/VFP/release-notes.txt> for | |
1347 | release notes and additional status information. | |
1348 | ||
1349 | Say N if your target does not have VFP hardware. | |
1350 | ||
25ebee02 CM |
1351 | config VFPv3 |
1352 | bool | |
1353 | depends on VFP | |
1354 | default y if CPU_V7 | |
1355 | ||
b5872db4 CM |
1356 | config NEON |
1357 | bool "Advanced SIMD (NEON) Extension support" | |
1358 | depends on VFPv3 && CPU_V7 | |
1359 | help | |
1360 | Say Y to include support code for NEON, the ARMv7 Advanced SIMD | |
1361 | Extension. | |
1362 | ||
1da177e4 LT |
1363 | endmenu |
1364 | ||
1365 | menu "Userspace binary formats" | |
1366 | ||
1367 | source "fs/Kconfig.binfmt" | |
1368 | ||
1369 | config ARTHUR | |
1370 | tristate "RISC OS personality" | |
704bdda0 | 1371 | depends on !AEABI |
1da177e4 LT |
1372 | help |
1373 | Say Y here to include the kernel code necessary if you want to run | |
1374 | Acorn RISC OS/Arthur binaries under Linux. This code is still very | |
1375 | experimental; if this sounds frightening, say N and sleep in peace. | |
1376 | You can also say M here to compile this support as a module (which | |
1377 | will be called arthur). | |
1378 | ||
1379 | endmenu | |
1380 | ||
1381 | menu "Power management options" | |
1382 | ||
eceab4ac | 1383 | source "kernel/power/Kconfig" |
1da177e4 | 1384 | |
f4cb5700 JB |
1385 | config ARCH_SUSPEND_POSSIBLE |
1386 | def_bool y | |
1387 | ||
1da177e4 LT |
1388 | endmenu |
1389 | ||
d5950b43 SR |
1390 | source "net/Kconfig" |
1391 | ||
1da177e4 LT |
1392 | menu "Device Drivers" |
1393 | ||
1394 | source "drivers/base/Kconfig" | |
1395 | ||
c35bf4a5 PM |
1396 | source "drivers/connector/Kconfig" |
1397 | ||
f12d0d7c | 1398 | if ALIGNMENT_TRAP || !CPU_CP15_MMU |
1da177e4 LT |
1399 | source "drivers/mtd/Kconfig" |
1400 | endif | |
1401 | ||
1402 | source "drivers/parport/Kconfig" | |
1403 | ||
1404 | source "drivers/pnp/Kconfig" | |
1405 | ||
1406 | source "drivers/block/Kconfig" | |
1407 | ||
58273e55 RK |
1408 | # misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4 |
1409 | ||
1410 | source "drivers/misc/Kconfig" | |
1411 | ||
1da177e4 | 1412 | source "drivers/ide/Kconfig" |
1da177e4 LT |
1413 | |
1414 | source "drivers/scsi/Kconfig" | |
1415 | ||
eb370f0b MM |
1416 | source "drivers/ata/Kconfig" |
1417 | ||
1da177e4 LT |
1418 | source "drivers/md/Kconfig" |
1419 | ||
1420 | source "drivers/message/fusion/Kconfig" | |
1421 | ||
1422 | source "drivers/ieee1394/Kconfig" | |
1423 | ||
1424 | source "drivers/message/i2o/Kconfig" | |
1425 | ||
d5950b43 | 1426 | source "drivers/net/Kconfig" |
1da177e4 LT |
1427 | |
1428 | source "drivers/isdn/Kconfig" | |
1429 | ||
1430 | # input before char - char/joystick depends on it. As does USB. | |
1431 | ||
1432 | source "drivers/input/Kconfig" | |
1433 | ||
1434 | source "drivers/char/Kconfig" | |
1435 | ||
1436 | source "drivers/i2c/Kconfig" | |
1437 | ||
8ae12a0d DB |
1438 | source "drivers/spi/Kconfig" |
1439 | ||
a9c5fff5 DB |
1440 | source "drivers/gpio/Kconfig" |
1441 | ||
04916c0e AZ |
1442 | source "drivers/w1/Kconfig" |
1443 | ||
58273e55 RK |
1444 | source "drivers/power/Kconfig" |
1445 | ||
ad2f931d JD |
1446 | source "drivers/hwmon/Kconfig" |
1447 | ||
ac9d7efc RK |
1448 | source "drivers/thermal/Kconfig" |
1449 | ||
70dfa3f8 RK |
1450 | source "drivers/watchdog/Kconfig" |
1451 | ||
58273e55 | 1452 | source "drivers/ssb/Kconfig" |
1da177e4 | 1453 | |
58273e55 | 1454 | #source "drivers/l3/Kconfig" |
1da177e4 | 1455 | |
a4e137ab RK |
1456 | source "drivers/mfd/Kconfig" |
1457 | ||
1da177e4 LT |
1458 | source "drivers/media/Kconfig" |
1459 | ||
1460 | source "drivers/video/Kconfig" | |
1461 | ||
1462 | source "sound/Kconfig" | |
1463 | ||
c2dade51 SH |
1464 | source "drivers/hid/Kconfig" |
1465 | ||
1da177e4 LT |
1466 | source "drivers/usb/Kconfig" |
1467 | ||
2f86c3e6 GKH |
1468 | source "drivers/uwb/Kconfig" |
1469 | ||
1da177e4 LT |
1470 | source "drivers/mmc/Kconfig" |
1471 | ||
ac9d7efc RK |
1472 | source "drivers/memstick/Kconfig" |
1473 | ||
1474 | source "drivers/accessibility/Kconfig" | |
1475 | ||
58273e55 RK |
1476 | source "drivers/leds/Kconfig" |
1477 | ||
12b824fb AZ |
1478 | source "drivers/rtc/Kconfig" |
1479 | ||
5816815f DW |
1480 | source "drivers/dma/Kconfig" |
1481 | ||
abf07b19 DW |
1482 | source "drivers/dca/Kconfig" |
1483 | ||
ac9d7efc RK |
1484 | source "drivers/auxdisplay/Kconfig" |
1485 | ||
ba7e4763 LG |
1486 | source "drivers/regulator/Kconfig" |
1487 | ||
2dc034a8 HJK |
1488 | source "drivers/uio/Kconfig" |
1489 | ||
6e38a2ba DH |
1490 | source "drivers/staging/Kconfig" |
1491 | ||
1da177e4 LT |
1492 | endmenu |
1493 | ||
1494 | source "fs/Kconfig" | |
1495 | ||
1da177e4 LT |
1496 | source "arch/arm/Kconfig.debug" |
1497 | ||
1498 | source "security/Kconfig" | |
1499 | ||
1500 | source "crypto/Kconfig" | |
1501 | ||
1502 | source "lib/Kconfig" |