Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | config ARM |
2 | bool | |
3 | default y | |
e17c6d56 | 4 | select HAVE_AOUT |
2064c946 | 5 | select HAVE_IDE |
12b824fb | 6 | select RTC_LIB |
75e7153a | 7 | select SYS_SUPPORTS_APM_EMULATION |
24b44a66 | 8 | select GENERIC_ATOMIC64 if (!CPU_32v6K) |
fe166148 | 9 | select HAVE_OPROFILE if (HAVE_PERF_EVENTS) |
5cbad0eb | 10 | select HAVE_ARCH_KGDB |
3f550096 | 11 | select HAVE_KPROBES if (!XIP_KERNEL) |
9edddaa2 | 12 | select HAVE_KRETPROBES if (HAVE_KPROBES) |
606576ce | 13 | select HAVE_FUNCTION_TRACER if (!XIP_KERNEL) |
1fe53268 | 14 | select HAVE_GENERIC_DMA_COHERENT |
e7db7b42 AT |
15 | select HAVE_KERNEL_GZIP |
16 | select HAVE_KERNEL_LZO | |
6e8699f7 | 17 | select HAVE_KERNEL_LZMA |
7ada189f JI |
18 | select HAVE_PERF_EVENTS |
19 | select PERF_USE_VMALLOC | |
1da177e4 LT |
20 | help |
21 | The ARM series is a line of low-power-consumption RISC chip designs | |
f6c8965a | 22 | licensed by ARM Ltd and targeted at embedded applications and |
1da177e4 | 23 | handhelds such as the Compaq IPAQ. ARM-based PCs are no longer |
f6c8965a | 24 | manufactured, but legacy ARM-based PC hardware remains popular in |
1da177e4 LT |
25 | Europe. There is an ARM Linux project with a web page at |
26 | <http://www.arm.linux.org.uk/>. | |
27 | ||
1a189b97 RK |
28 | config HAVE_PWM |
29 | bool | |
30 | ||
75e7153a RB |
31 | config SYS_SUPPORTS_APM_EMULATION |
32 | bool | |
33 | ||
0a938b97 DB |
34 | config GENERIC_GPIO |
35 | bool | |
0a938b97 | 36 | |
746140c7 KH |
37 | config GENERIC_TIME |
38 | bool | |
5cfc8ee0 JS |
39 | default y |
40 | ||
41 | config ARCH_USES_GETTIMEOFFSET | |
42 | bool | |
43 | default n | |
746140c7 | 44 | |
0567a0c0 KH |
45 | config GENERIC_CLOCKEVENTS |
46 | bool | |
0567a0c0 | 47 | |
a8655e83 CM |
48 | config GENERIC_CLOCKEVENTS_BROADCAST |
49 | bool | |
50 | depends on GENERIC_CLOCKEVENTS | |
51 | default y if SMP && !LOCAL_TIMERS | |
52 | ||
bc581770 LW |
53 | config HAVE_TCM |
54 | bool | |
55 | select GENERIC_ALLOCATOR | |
56 | ||
e119bfff RK |
57 | config HAVE_PROC_CPU |
58 | bool | |
59 | ||
5ea81769 AV |
60 | config NO_IOPORT |
61 | bool | |
5ea81769 | 62 | |
1da177e4 LT |
63 | config EISA |
64 | bool | |
65 | ---help--- | |
66 | The Extended Industry Standard Architecture (EISA) bus was | |
67 | developed as an open alternative to the IBM MicroChannel bus. | |
68 | ||
69 | The EISA bus provided some of the features of the IBM MicroChannel | |
70 | bus while maintaining backward compatibility with cards made for | |
71 | the older ISA bus. The EISA bus saw limited use between 1988 and | |
72 | 1995 when it was made obsolete by the PCI bus. | |
73 | ||
74 | Say Y here if you are building a kernel for an EISA-based machine. | |
75 | ||
76 | Otherwise, say N. | |
77 | ||
78 | config SBUS | |
79 | bool | |
80 | ||
81 | config MCA | |
82 | bool | |
83 | help | |
84 | MicroChannel Architecture is found in some IBM PS/2 machines and | |
85 | laptops. It is a bus system similar to PCI or ISA. See | |
86 | <file:Documentation/mca.txt> (and especially the web page given | |
87 | there) before attempting to build an MCA bus kernel. | |
88 | ||
4a2581a0 TG |
89 | config GENERIC_HARDIRQS |
90 | bool | |
91 | default y | |
92 | ||
f16fb1ec RK |
93 | config STACKTRACE_SUPPORT |
94 | bool | |
95 | default y | |
96 | ||
f76e9154 NP |
97 | config HAVE_LATENCYTOP_SUPPORT |
98 | bool | |
99 | depends on !SMP | |
100 | default y | |
101 | ||
f16fb1ec RK |
102 | config LOCKDEP_SUPPORT |
103 | bool | |
104 | default y | |
105 | ||
7ad1bcb2 RK |
106 | config TRACE_IRQFLAGS_SUPPORT |
107 | bool | |
108 | default y | |
109 | ||
4a2581a0 TG |
110 | config HARDIRQS_SW_RESEND |
111 | bool | |
112 | default y | |
113 | ||
114 | config GENERIC_IRQ_PROBE | |
115 | bool | |
116 | default y | |
117 | ||
95c354fe NP |
118 | config GENERIC_LOCKBREAK |
119 | bool | |
120 | default y | |
121 | depends on SMP && PREEMPT | |
122 | ||
1da177e4 LT |
123 | config RWSEM_GENERIC_SPINLOCK |
124 | bool | |
125 | default y | |
126 | ||
127 | config RWSEM_XCHGADD_ALGORITHM | |
128 | bool | |
129 | ||
f0d1b0b3 DH |
130 | config ARCH_HAS_ILOG2_U32 |
131 | bool | |
f0d1b0b3 DH |
132 | |
133 | config ARCH_HAS_ILOG2_U64 | |
134 | bool | |
f0d1b0b3 | 135 | |
89c52ed4 BD |
136 | config ARCH_HAS_CPUFREQ |
137 | bool | |
138 | help | |
139 | Internal node to signify that the ARCH has CPUFREQ support | |
140 | and that the relevant menu configurations are displayed for | |
141 | it. | |
142 | ||
b89c3b16 AM |
143 | config GENERIC_HWEIGHT |
144 | bool | |
145 | default y | |
146 | ||
1da177e4 LT |
147 | config GENERIC_CALIBRATE_DELAY |
148 | bool | |
149 | default y | |
150 | ||
a08b6b79 AV |
151 | config ARCH_MAY_HAVE_PC_FDC |
152 | bool | |
153 | ||
5ac6da66 CL |
154 | config ZONE_DMA |
155 | bool | |
5ac6da66 | 156 | |
ccd7ab7f FT |
157 | config NEED_DMA_MAP_STATE |
158 | def_bool y | |
159 | ||
1da177e4 LT |
160 | config GENERIC_ISA_DMA |
161 | bool | |
162 | ||
1da177e4 LT |
163 | config FIQ |
164 | bool | |
165 | ||
034d2f5a AV |
166 | config ARCH_MTD_XIP |
167 | bool | |
168 | ||
60a752ef | 169 | config GENERIC_HARDIRQS_NO__DO_IRQ |
60a752ef PZ |
170 | def_bool y |
171 | ||
d6d502fa KK |
172 | config ARM_L1_CACHE_SHIFT_6 |
173 | bool | |
174 | help | |
175 | Setting ARM L1 cache line size to 64 Bytes. | |
176 | ||
c760fc19 HC |
177 | config VECTORS_BASE |
178 | hex | |
6afd6fae | 179 | default 0xffff0000 if MMU || CPU_HIGH_VECTOR |
c760fc19 HC |
180 | default DRAM_BASE if REMAP_VECTORS_TO_RAM |
181 | default 0x00000000 | |
182 | help | |
183 | The base address of exception vectors. | |
184 | ||
1da177e4 LT |
185 | source "init/Kconfig" |
186 | ||
dc52ddc0 MH |
187 | source "kernel/Kconfig.freezer" |
188 | ||
1da177e4 LT |
189 | menu "System Type" |
190 | ||
3c427975 HC |
191 | config MMU |
192 | bool "MMU-based Paged Memory Management Support" | |
193 | default y | |
194 | help | |
195 | Select if you want MMU-based virtualised addressing space | |
196 | support by paged memory management. If unsure, say 'Y'. | |
197 | ||
ccf50e23 RK |
198 | # |
199 | # The "ARM system type" choice list is ordered alphabetically by option | |
200 | # text. Please add new entries in the option alphabetic order. | |
201 | # | |
1da177e4 LT |
202 | choice |
203 | prompt "ARM system type" | |
6a0e2430 | 204 | default ARCH_VERSATILE |
1da177e4 | 205 | |
4af6fee1 DS |
206 | config ARCH_AAEC2000 |
207 | bool "Agilent AAEC-2000 based" | |
c750815e | 208 | select CPU_ARM920T |
4af6fee1 | 209 | select ARM_AMBA |
9483a578 | 210 | select HAVE_CLK |
5cfc8ee0 | 211 | select ARCH_USES_GETTIMEOFFSET |
4af6fee1 DS |
212 | help |
213 | This enables support for systems based on the Agilent AAEC-2000 | |
214 | ||
215 | config ARCH_INTEGRATOR | |
216 | bool "ARM Ltd. Integrator family" | |
217 | select ARM_AMBA | |
89c52ed4 | 218 | select ARCH_HAS_CPUFREQ |
d72fbdf0 | 219 | select COMMON_CLKDEV |
c5a0adb5 | 220 | select ICST |
13edd86d | 221 | select GENERIC_CLOCKEVENTS |
f4b8b319 | 222 | select PLAT_VERSATILE |
4af6fee1 DS |
223 | help |
224 | Support for ARM's Integrator platform. | |
225 | ||
226 | config ARCH_REALVIEW | |
227 | bool "ARM Ltd. RealView family" | |
228 | select ARM_AMBA | |
cf30fb4a | 229 | select COMMON_CLKDEV |
c5a0adb5 | 230 | select ICST |
ae30ceac | 231 | select GENERIC_CLOCKEVENTS |
eb7fffa3 | 232 | select ARCH_WANT_OPTIONAL_GPIOLIB |
f4b8b319 | 233 | select PLAT_VERSATILE |
e3887714 | 234 | select ARM_TIMER_SP804 |
b56ba8aa | 235 | select GPIO_PL061 if GPIOLIB |
4af6fee1 DS |
236 | help |
237 | This enables support for ARM Ltd RealView boards. | |
238 | ||
239 | config ARCH_VERSATILE | |
240 | bool "ARM Ltd. Versatile family" | |
241 | select ARM_AMBA | |
242 | select ARM_VIC | |
71a06da0 | 243 | select COMMON_CLKDEV |
c5a0adb5 | 244 | select ICST |
89df1272 | 245 | select GENERIC_CLOCKEVENTS |
bbeddc43 | 246 | select ARCH_WANT_OPTIONAL_GPIOLIB |
f4b8b319 | 247 | select PLAT_VERSATILE |
e3887714 | 248 | select ARM_TIMER_SP804 |
4af6fee1 DS |
249 | help |
250 | This enables support for ARM Ltd Versatile board. | |
251 | ||
ceade897 RK |
252 | config ARCH_VEXPRESS |
253 | bool "ARM Ltd. Versatile Express family" | |
254 | select ARCH_WANT_OPTIONAL_GPIOLIB | |
255 | select ARM_AMBA | |
256 | select ARM_TIMER_SP804 | |
257 | select COMMON_CLKDEV | |
258 | select GENERIC_CLOCKEVENTS | |
ceade897 RK |
259 | select HAVE_CLK |
260 | select ICST | |
261 | select PLAT_VERSATILE | |
262 | help | |
263 | This enables support for the ARM Ltd Versatile Express boards. | |
264 | ||
8fc5ffa0 AV |
265 | config ARCH_AT91 |
266 | bool "Atmel AT91" | |
f373e8c0 | 267 | select ARCH_REQUIRE_GPIOLIB |
93686ae8 | 268 | select HAVE_CLK |
5cfc8ee0 | 269 | select ARCH_USES_GETTIMEOFFSET |
4af6fee1 | 270 | help |
2b3b3516 AV |
271 | This enables support for systems based on the Atmel AT91RM9200, |
272 | AT91SAM9 and AT91CAP9 processors. | |
4af6fee1 | 273 | |
ccf50e23 RK |
274 | config ARCH_BCMRING |
275 | bool "Broadcom BCMRING" | |
276 | depends on MMU | |
277 | select CPU_V6 | |
278 | select ARM_AMBA | |
279 | select COMMON_CLKDEV | |
ccf50e23 RK |
280 | select GENERIC_CLOCKEVENTS |
281 | select ARCH_WANT_OPTIONAL_GPIOLIB | |
282 | help | |
283 | Support for Broadcom's BCMRing platform. | |
284 | ||
1da177e4 | 285 | config ARCH_CLPS711X |
4af6fee1 | 286 | bool "Cirrus Logic CLPS711x/EP721x-based" |
c750815e | 287 | select CPU_ARM720T |
5cfc8ee0 | 288 | select ARCH_USES_GETTIMEOFFSET |
f999b8bd MM |
289 | help |
290 | Support for Cirrus Logic 711x/721x based boards. | |
1da177e4 | 291 | |
d94f944e AV |
292 | config ARCH_CNS3XXX |
293 | bool "Cavium Networks CNS3XXX family" | |
294 | select CPU_V6 | |
d94f944e AV |
295 | select GENERIC_CLOCKEVENTS |
296 | select ARM_GIC | |
297 | help | |
298 | Support for Cavium Networks CNS3XXX platform. | |
299 | ||
788c9700 RK |
300 | config ARCH_GEMINI |
301 | bool "Cortina Systems Gemini" | |
302 | select CPU_FA526 | |
788c9700 | 303 | select ARCH_REQUIRE_GPIOLIB |
5cfc8ee0 | 304 | select ARCH_USES_GETTIMEOFFSET |
788c9700 RK |
305 | help |
306 | Support for the Cortina Systems Gemini family SoCs | |
307 | ||
1da177e4 LT |
308 | config ARCH_EBSA110 |
309 | bool "EBSA-110" | |
c750815e | 310 | select CPU_SA110 |
f7e68bbf | 311 | select ISA |
c5eb2a2b | 312 | select NO_IOPORT |
5cfc8ee0 | 313 | select ARCH_USES_GETTIMEOFFSET |
1da177e4 LT |
314 | help |
315 | This is an evaluation board for the StrongARM processor available | |
f6c8965a | 316 | from Digital. It has limited hardware on-board, including an |
1da177e4 LT |
317 | Ethernet interface, two PCMCIA sockets, two serial ports and a |
318 | parallel port. | |
319 | ||
e7736d47 LB |
320 | config ARCH_EP93XX |
321 | bool "EP93xx-based" | |
c750815e | 322 | select CPU_ARM920T |
e7736d47 LB |
323 | select ARM_AMBA |
324 | select ARM_VIC | |
ae696fd5 | 325 | select COMMON_CLKDEV |
7444a72e | 326 | select ARCH_REQUIRE_GPIOLIB |
eb33575c | 327 | select ARCH_HAS_HOLES_MEMORYMODEL |
5cfc8ee0 | 328 | select ARCH_USES_GETTIMEOFFSET |
e7736d47 LB |
329 | help |
330 | This enables support for the Cirrus EP93xx series of CPUs. | |
331 | ||
1da177e4 LT |
332 | config ARCH_FOOTBRIDGE |
333 | bool "FootBridge" | |
c750815e | 334 | select CPU_SA110 |
1da177e4 | 335 | select FOOTBRIDGE |
5cfc8ee0 | 336 | select ARCH_USES_GETTIMEOFFSET |
f999b8bd MM |
337 | help |
338 | Support for systems based on the DC21285 companion chip | |
339 | ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder. | |
1da177e4 | 340 | |
788c9700 RK |
341 | config ARCH_MXC |
342 | bool "Freescale MXC/iMX-based" | |
788c9700 | 343 | select GENERIC_CLOCKEVENTS |
788c9700 | 344 | select ARCH_REQUIRE_GPIOLIB |
03e09cd8 | 345 | select COMMON_CLKDEV |
788c9700 RK |
346 | help |
347 | Support for Freescale MXC/iMX-based family of processors | |
348 | ||
7bd0f2f5 | 349 | config ARCH_STMP3XXX |
350 | bool "Freescale STMP3xxx" | |
351 | select CPU_ARM926T | |
7bd0f2f5 | 352 | select COMMON_CLKDEV |
353 | select ARCH_REQUIRE_GPIOLIB | |
7bd0f2f5 | 354 | select GENERIC_CLOCKEVENTS |
7bd0f2f5 | 355 | select USB_ARCH_HAS_EHCI |
356 | help | |
357 | Support for systems based on the Freescale 3xxx CPUs. | |
358 | ||
4af6fee1 DS |
359 | config ARCH_NETX |
360 | bool "Hilscher NetX based" | |
c750815e | 361 | select CPU_ARM926T |
4af6fee1 | 362 | select ARM_VIC |
2fcfe6b8 | 363 | select GENERIC_CLOCKEVENTS |
f999b8bd | 364 | help |
4af6fee1 DS |
365 | This enables support for systems based on the Hilscher NetX Soc |
366 | ||
367 | config ARCH_H720X | |
368 | bool "Hynix HMS720x-based" | |
c750815e | 369 | select CPU_ARM720T |
4af6fee1 | 370 | select ISA_DMA_API |
5cfc8ee0 | 371 | select ARCH_USES_GETTIMEOFFSET |
4af6fee1 DS |
372 | help |
373 | This enables support for systems based on the Hynix HMS720x | |
374 | ||
3b938be6 RK |
375 | config ARCH_IOP13XX |
376 | bool "IOP13xx-based" | |
377 | depends on MMU | |
c750815e | 378 | select CPU_XSC3 |
3b938be6 RK |
379 | select PLAT_IOP |
380 | select PCI | |
381 | select ARCH_SUPPORTS_MSI | |
8d5796d2 | 382 | select VMSPLIT_1G |
3b938be6 RK |
383 | help |
384 | Support for Intel's IOP13XX (XScale) family of processors. | |
385 | ||
3f7e5815 LB |
386 | config ARCH_IOP32X |
387 | bool "IOP32x-based" | |
a4f7e763 | 388 | depends on MMU |
c750815e | 389 | select CPU_XSCALE |
7ae1f7ec | 390 | select PLAT_IOP |
f7e68bbf | 391 | select PCI |
bb2b180c | 392 | select ARCH_REQUIRE_GPIOLIB |
f999b8bd | 393 | help |
3f7e5815 LB |
394 | Support for Intel's 80219 and IOP32X (XScale) family of |
395 | processors. | |
396 | ||
397 | config ARCH_IOP33X | |
398 | bool "IOP33x-based" | |
399 | depends on MMU | |
c750815e | 400 | select CPU_XSCALE |
7ae1f7ec | 401 | select PLAT_IOP |
3f7e5815 | 402 | select PCI |
bb2b180c | 403 | select ARCH_REQUIRE_GPIOLIB |
3f7e5815 LB |
404 | help |
405 | Support for Intel's IOP33X (XScale) family of processors. | |
1da177e4 | 406 | |
3b938be6 RK |
407 | config ARCH_IXP23XX |
408 | bool "IXP23XX-based" | |
a4f7e763 | 409 | depends on MMU |
c750815e | 410 | select CPU_XSC3 |
3b938be6 | 411 | select PCI |
5cfc8ee0 | 412 | select ARCH_USES_GETTIMEOFFSET |
f999b8bd | 413 | help |
3b938be6 | 414 | Support for Intel's IXP23xx (XScale) family of processors. |
1da177e4 LT |
415 | |
416 | config ARCH_IXP2000 | |
417 | bool "IXP2400/2800-based" | |
a4f7e763 | 418 | depends on MMU |
c750815e | 419 | select CPU_XSCALE |
f7e68bbf | 420 | select PCI |
5cfc8ee0 | 421 | select ARCH_USES_GETTIMEOFFSET |
f999b8bd MM |
422 | help |
423 | Support for Intel's IXP2400/2800 (XScale) family of processors. | |
1da177e4 | 424 | |
3b938be6 RK |
425 | config ARCH_IXP4XX |
426 | bool "IXP4xx-based" | |
a4f7e763 | 427 | depends on MMU |
c750815e | 428 | select CPU_XSCALE |
8858e9af | 429 | select GENERIC_GPIO |
3b938be6 | 430 | select GENERIC_CLOCKEVENTS |
485bdde7 | 431 | select DMABOUNCE if PCI |
c4713074 | 432 | help |
3b938be6 | 433 | Support for Intel's IXP4XX (XScale) family of processors. |
c4713074 | 434 | |
1da177e4 LT |
435 | config ARCH_L7200 |
436 | bool "LinkUp-L7200" | |
c750815e | 437 | select CPU_ARM720T |
1da177e4 | 438 | select FIQ |
5cfc8ee0 | 439 | select ARCH_USES_GETTIMEOFFSET |
1da177e4 LT |
440 | help |
441 | Say Y here if you intend to run this kernel on a LinkUp Systems | |
442 | L7200 Software Development Board which uses an ARM720T processor. | |
443 | Information on this board can be obtained at: | |
444 | ||
445 | <http://www.linkupsys.com/> | |
446 | ||
447 | If you have any questions or comments about the Linux kernel port | |
448 | to this board, send e-mail to <sjhill@cotw.com>. | |
449 | ||
edabd38e SB |
450 | config ARCH_DOVE |
451 | bool "Marvell Dove" | |
452 | select PCI | |
edabd38e | 453 | select ARCH_REQUIRE_GPIOLIB |
edabd38e SB |
454 | select GENERIC_CLOCKEVENTS |
455 | select PLAT_ORION | |
456 | help | |
457 | Support for the Marvell Dove SoC 88AP510 | |
458 | ||
651c74c7 SB |
459 | config ARCH_KIRKWOOD |
460 | bool "Marvell Kirkwood" | |
c750815e | 461 | select CPU_FEROCEON |
651c74c7 | 462 | select PCI |
a8865655 | 463 | select ARCH_REQUIRE_GPIOLIB |
651c74c7 SB |
464 | select GENERIC_CLOCKEVENTS |
465 | select PLAT_ORION | |
466 | help | |
467 | Support for the following Marvell Kirkwood series SoCs: | |
468 | 88F6180, 88F6192 and 88F6281. | |
469 | ||
777f9beb LB |
470 | config ARCH_LOKI |
471 | bool "Marvell Loki (88RC8480)" | |
c750815e | 472 | select CPU_FEROCEON |
777f9beb LB |
473 | select GENERIC_CLOCKEVENTS |
474 | select PLAT_ORION | |
475 | help | |
476 | Support for the Marvell Loki (88RC8480) SoC. | |
477 | ||
794d15b2 SS |
478 | config ARCH_MV78XX0 |
479 | bool "Marvell MV78xx0" | |
c750815e | 480 | select CPU_FEROCEON |
794d15b2 | 481 | select PCI |
a8865655 | 482 | select ARCH_REQUIRE_GPIOLIB |
794d15b2 SS |
483 | select GENERIC_CLOCKEVENTS |
484 | select PLAT_ORION | |
485 | help | |
486 | Support for the following Marvell MV78xx0 series SoCs: | |
487 | MV781x0, MV782x0. | |
488 | ||
9dd0b194 | 489 | config ARCH_ORION5X |
585cf175 TP |
490 | bool "Marvell Orion" |
491 | depends on MMU | |
c750815e | 492 | select CPU_FEROCEON |
038ee083 | 493 | select PCI |
a8865655 | 494 | select ARCH_REQUIRE_GPIOLIB |
51cbff1d | 495 | select GENERIC_CLOCKEVENTS |
69b02f6a | 496 | select PLAT_ORION |
585cf175 | 497 | help |
9dd0b194 | 498 | Support for the following Marvell Orion 5x series SoCs: |
d2b2a6bb | 499 | Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182), |
d323ade1 | 500 | Orion-2 (5281), Orion-1-90 (6183). |
585cf175 | 501 | |
788c9700 | 502 | config ARCH_MMP |
2f7e8fae | 503 | bool "Marvell PXA168/910/MMP2" |
788c9700 | 504 | depends on MMU |
788c9700 | 505 | select ARCH_REQUIRE_GPIOLIB |
788c9700 | 506 | select COMMON_CLKDEV |
788c9700 RK |
507 | select GENERIC_CLOCKEVENTS |
508 | select TICK_ONESHOT | |
509 | select PLAT_PXA | |
510 | help | |
2f7e8fae | 511 | Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line. |
788c9700 RK |
512 | |
513 | config ARCH_KS8695 | |
514 | bool "Micrel/Kendin KS8695" | |
515 | select CPU_ARM922T | |
98830bc9 | 516 | select ARCH_REQUIRE_GPIOLIB |
5cfc8ee0 | 517 | select ARCH_USES_GETTIMEOFFSET |
788c9700 RK |
518 | help |
519 | Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based | |
520 | System-on-Chip devices. | |
521 | ||
522 | config ARCH_NS9XXX | |
523 | bool "NetSilicon NS9xxx" | |
524 | select CPU_ARM926T | |
525 | select GENERIC_GPIO | |
788c9700 RK |
526 | select GENERIC_CLOCKEVENTS |
527 | select HAVE_CLK | |
528 | help | |
529 | Say Y here if you intend to run this kernel on a NetSilicon NS9xxx | |
530 | System. | |
531 | ||
532 | <http://www.digi.com/products/microprocessors/index.jsp> | |
533 | ||
534 | config ARCH_W90X900 | |
535 | bool "Nuvoton W90X900 CPU" | |
536 | select CPU_ARM926T | |
c52d3d68 | 537 | select ARCH_REQUIRE_GPIOLIB |
0e4a34bb | 538 | select COMMON_CLKDEV |
58b5369e | 539 | select GENERIC_CLOCKEVENTS |
788c9700 | 540 | help |
a8bc4ead | 541 | Support for Nuvoton (Winbond logic dept.) ARM9 processor, |
542 | At present, the w90x900 has been renamed nuc900, regarding | |
543 | the ARM series product line, you can login the following | |
544 | link address to know more. | |
545 | ||
546 | <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/ | |
547 | ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller> | |
788c9700 | 548 | |
a62e9030 | 549 | config ARCH_NUC93X |
550 | bool "Nuvoton NUC93X CPU" | |
551 | select CPU_ARM926T | |
a62e9030 | 552 | select COMMON_CLKDEV |
553 | help | |
554 | Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a | |
555 | low-power and high performance MPEG-4/JPEG multimedia controller chip. | |
556 | ||
4af6fee1 DS |
557 | config ARCH_PNX4008 |
558 | bool "Philips Nexperia PNX4008 Mobile" | |
c750815e | 559 | select CPU_ARM926T |
6985a5ad | 560 | select COMMON_CLKDEV |
5cfc8ee0 | 561 | select ARCH_USES_GETTIMEOFFSET |
4af6fee1 DS |
562 | help |
563 | This enables support for Philips PNX4008 mobile platform. | |
564 | ||
1da177e4 | 565 | config ARCH_PXA |
2c8086a5 | 566 | bool "PXA2xx/PXA3xx-based" |
a4f7e763 | 567 | depends on MMU |
034d2f5a | 568 | select ARCH_MTD_XIP |
89c52ed4 | 569 | select ARCH_HAS_CPUFREQ |
8c3abc7d | 570 | select COMMON_CLKDEV |
7444a72e | 571 | select ARCH_REQUIRE_GPIOLIB |
981d0f39 | 572 | select GENERIC_CLOCKEVENTS |
a88264c2 | 573 | select TICK_ONESHOT |
bd5ce433 | 574 | select PLAT_PXA |
f999b8bd | 575 | help |
2c8086a5 | 576 | Support for Intel/Marvell's PXA2xx/PXA3xx processor line. |
1da177e4 | 577 | |
788c9700 RK |
578 | config ARCH_MSM |
579 | bool "Qualcomm MSM" | |
4b536b8d | 580 | select HAVE_CLK |
49cbe786 | 581 | select GENERIC_CLOCKEVENTS |
49cbe786 | 582 | help |
4b53eb4f DW |
583 | Support for Qualcomm MSM/QSD based systems. This runs on the |
584 | apps processor of the MSM/QSD and depends on a shared memory | |
585 | interface to the modem processor which runs the baseband | |
586 | stack and controls some vital subsystems | |
587 | (clock and power control, etc). | |
49cbe786 | 588 | |
c793c1b0 MD |
589 | config ARCH_SHMOBILE |
590 | bool "Renesas SH-Mobile" | |
591 | help | |
592 | Support for Renesas's SH-Mobile ARM platforms | |
593 | ||
1da177e4 LT |
594 | config ARCH_RPC |
595 | bool "RiscPC" | |
596 | select ARCH_ACORN | |
597 | select FIQ | |
598 | select TIMER_ACORN | |
a08b6b79 | 599 | select ARCH_MAY_HAVE_PC_FDC |
341eb781 | 600 | select HAVE_PATA_PLATFORM |
065909b9 | 601 | select ISA_DMA_API |
5ea81769 | 602 | select NO_IOPORT |
07f841b7 | 603 | select ARCH_SPARSEMEM_ENABLE |
5cfc8ee0 | 604 | select ARCH_USES_GETTIMEOFFSET |
1da177e4 LT |
605 | help |
606 | On the Acorn Risc-PC, Linux can support the internal IDE disk and | |
607 | CD-ROM interface, serial and parallel port, and the floppy drive. | |
608 | ||
609 | config ARCH_SA1100 | |
610 | bool "SA1100-based" | |
c750815e | 611 | select CPU_SA1100 |
f7e68bbf | 612 | select ISA |
05944d74 | 613 | select ARCH_SPARSEMEM_ENABLE |
034d2f5a | 614 | select ARCH_MTD_XIP |
89c52ed4 | 615 | select ARCH_HAS_CPUFREQ |
1937f5b9 | 616 | select CPU_FREQ |
3e238be2 | 617 | select GENERIC_CLOCKEVENTS |
9483a578 | 618 | select HAVE_CLK |
3e238be2 | 619 | select TICK_ONESHOT |
7444a72e | 620 | select ARCH_REQUIRE_GPIOLIB |
f999b8bd MM |
621 | help |
622 | Support for StrongARM 11x0 based boards. | |
1da177e4 LT |
623 | |
624 | config ARCH_S3C2410 | |
63b1f51b | 625 | bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450" |
0a938b97 | 626 | select GENERIC_GPIO |
9d56c02a | 627 | select ARCH_HAS_CPUFREQ |
9483a578 | 628 | select HAVE_CLK |
5cfc8ee0 | 629 | select ARCH_USES_GETTIMEOFFSET |
1da177e4 LT |
630 | help |
631 | Samsung S3C2410X CPU based systems, such as the Simtec Electronics | |
632 | BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or | |
f6c8965a | 633 | the Samsung SMDK2410 development board (and derivatives). |
1da177e4 | 634 | |
63b1f51b BD |
635 | Note, the S3C2416 and the S3C2450 are so close that they even share |
636 | the same SoC ID code. This means that there is no seperate machine | |
637 | directory (no arch/arm/mach-s3c2450) as the S3C2416 was first. | |
638 | ||
a08ab637 BD |
639 | config ARCH_S3C64XX |
640 | bool "Samsung S3C64XX" | |
89f1fa08 | 641 | select PLAT_SAMSUNG |
89f0ce72 | 642 | select CPU_V6 |
89f0ce72 | 643 | select ARM_VIC |
a08ab637 | 644 | select HAVE_CLK |
89f0ce72 | 645 | select NO_IOPORT |
5cfc8ee0 | 646 | select ARCH_USES_GETTIMEOFFSET |
89c52ed4 | 647 | select ARCH_HAS_CPUFREQ |
89f0ce72 BD |
648 | select ARCH_REQUIRE_GPIOLIB |
649 | select SAMSUNG_CLKSRC | |
650 | select SAMSUNG_IRQ_VIC_TIMER | |
651 | select SAMSUNG_IRQ_UART | |
652 | select S3C_GPIO_TRACK | |
653 | select S3C_GPIO_PULL_UPDOWN | |
654 | select S3C_GPIO_CFG_S3C24XX | |
655 | select S3C_GPIO_CFG_S3C64XX | |
656 | select S3C_DEV_NAND | |
657 | select USB_ARCH_HAS_OHCI | |
658 | select SAMSUNG_GPIOLIB_4BIT | |
a08ab637 BD |
659 | help |
660 | Samsung S3C64XX series based systems | |
661 | ||
c4ffccdd KK |
662 | config ARCH_S5P6440 |
663 | bool "Samsung S5P6440" | |
664 | select CPU_V6 | |
665 | select GENERIC_GPIO | |
666 | select HAVE_CLK | |
925c68cd | 667 | select ARCH_USES_GETTIMEOFFSET |
c4ffccdd KK |
668 | help |
669 | Samsung S5P6440 CPU based systems | |
670 | ||
550db7f1 KK |
671 | config ARCH_S5P6442 |
672 | bool "Samsung S5P6442" | |
673 | select CPU_V6 | |
674 | select GENERIC_GPIO | |
675 | select HAVE_CLK | |
925c68cd | 676 | select ARCH_USES_GETTIMEOFFSET |
550db7f1 KK |
677 | help |
678 | Samsung S5P6442 CPU based systems | |
679 | ||
acc84707 MS |
680 | config ARCH_S5PC100 |
681 | bool "Samsung S5PC100" | |
5a7652f2 BM |
682 | select GENERIC_GPIO |
683 | select HAVE_CLK | |
684 | select CPU_V7 | |
d6d502fa | 685 | select ARM_L1_CACHE_SHIFT_6 |
925c68cd | 686 | select ARCH_USES_GETTIMEOFFSET |
5a7652f2 | 687 | help |
acc84707 | 688 | Samsung S5PC100 series based systems |
5a7652f2 | 689 | |
170f4e42 KK |
690 | config ARCH_S5PV210 |
691 | bool "Samsung S5PV210/S5PC110" | |
692 | select CPU_V7 | |
693 | select GENERIC_GPIO | |
694 | select HAVE_CLK | |
695 | select ARM_L1_CACHE_SHIFT_6 | |
925c68cd | 696 | select ARCH_USES_GETTIMEOFFSET |
170f4e42 KK |
697 | help |
698 | Samsung S5PV210/S5PC110 series based systems | |
699 | ||
1da177e4 LT |
700 | config ARCH_SHARK |
701 | bool "Shark" | |
c750815e | 702 | select CPU_SA110 |
f7e68bbf RK |
703 | select ISA |
704 | select ISA_DMA | |
3bca103a | 705 | select ZONE_DMA |
f7e68bbf | 706 | select PCI |
5cfc8ee0 | 707 | select ARCH_USES_GETTIMEOFFSET |
f999b8bd MM |
708 | help |
709 | Support for the StrongARM based Digital DNARD machine, also known | |
710 | as "Shark" (<http://www.shark-linux.de/shark.html>). | |
1da177e4 LT |
711 | |
712 | config ARCH_LH7A40X | |
713 | bool "Sharp LH7A40X" | |
c750815e | 714 | select CPU_ARM922T |
4ba3f7c5 RK |
715 | select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM |
716 | select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM | |
5cfc8ee0 | 717 | select ARCH_USES_GETTIMEOFFSET |
1da177e4 LT |
718 | help |
719 | Say Y here for systems based on one of the Sharp LH7A40X | |
720 | System on a Chip processors. These CPUs include an ARM922T | |
721 | core with a wide array of integrated devices for | |
722 | hand-held and low-power applications. | |
723 | ||
d98aac75 LW |
724 | config ARCH_U300 |
725 | bool "ST-Ericsson U300 Series" | |
726 | depends on MMU | |
727 | select CPU_ARM926T | |
bc581770 | 728 | select HAVE_TCM |
d98aac75 LW |
729 | select ARM_AMBA |
730 | select ARM_VIC | |
d98aac75 | 731 | select GENERIC_CLOCKEVENTS |
d98aac75 LW |
732 | select COMMON_CLKDEV |
733 | select GENERIC_GPIO | |
734 | help | |
735 | Support for ST-Ericsson U300 series mobile platforms. | |
736 | ||
ccf50e23 RK |
737 | config ARCH_U8500 |
738 | bool "ST-Ericsson U8500 Series" | |
739 | select CPU_V7 | |
740 | select ARM_AMBA | |
ccf50e23 RK |
741 | select GENERIC_CLOCKEVENTS |
742 | select COMMON_CLKDEV | |
94bdc0e2 | 743 | select ARCH_REQUIRE_GPIOLIB |
ccf50e23 RK |
744 | help |
745 | Support for ST-Ericsson's Ux500 architecture | |
746 | ||
747 | config ARCH_NOMADIK | |
748 | bool "STMicroelectronics Nomadik" | |
749 | select ARM_AMBA | |
750 | select ARM_VIC | |
751 | select CPU_ARM926T | |
ccf50e23 | 752 | select COMMON_CLKDEV |
ccf50e23 | 753 | select GENERIC_CLOCKEVENTS |
ccf50e23 RK |
754 | select ARCH_REQUIRE_GPIOLIB |
755 | help | |
756 | Support for the Nomadik platform by ST-Ericsson | |
757 | ||
7c6337e2 KH |
758 | config ARCH_DAVINCI |
759 | bool "TI DaVinci" | |
7c6337e2 | 760 | select GENERIC_CLOCKEVENTS |
dce1115b | 761 | select ARCH_REQUIRE_GPIOLIB |
3bca103a | 762 | select ZONE_DMA |
9232fcc9 | 763 | select HAVE_IDE |
c5b736d0 | 764 | select COMMON_CLKDEV |
20e9969b | 765 | select GENERIC_ALLOCATOR |
ae88e05a | 766 | select ARCH_HAS_HOLES_MEMORYMODEL |
7c6337e2 KH |
767 | help |
768 | Support for TI's DaVinci platform. | |
769 | ||
3b938be6 RK |
770 | config ARCH_OMAP |
771 | bool "TI OMAP" | |
9483a578 | 772 | select HAVE_CLK |
7444a72e | 773 | select ARCH_REQUIRE_GPIOLIB |
89c52ed4 | 774 | select ARCH_HAS_CPUFREQ |
06cad098 | 775 | select GENERIC_CLOCKEVENTS |
9af915da | 776 | select ARCH_HAS_HOLES_MEMORYMODEL |
3b938be6 RK |
777 | help |
778 | Support for TI's OMAP platform (OMAP1 and OMAP2). | |
779 | ||
cee37e50 VK |
780 | config PLAT_SPEAR |
781 | bool "ST SPEAr" | |
782 | select ARM_AMBA | |
783 | select ARCH_REQUIRE_GPIOLIB | |
784 | select COMMON_CLKDEV | |
785 | select GENERIC_CLOCKEVENTS | |
cee37e50 VK |
786 | select HAVE_CLK |
787 | help | |
788 | Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx). | |
789 | ||
1da177e4 LT |
790 | endchoice |
791 | ||
ccf50e23 RK |
792 | # |
793 | # This is sorted alphabetically by mach-* pathname. However, plat-* | |
794 | # Kconfigs may be included either alphabetically (according to the | |
795 | # plat- suffix) or along side the corresponding mach-* source. | |
796 | # | |
95b8f20f RK |
797 | source "arch/arm/mach-aaec2000/Kconfig" |
798 | ||
799 | source "arch/arm/mach-at91/Kconfig" | |
800 | ||
801 | source "arch/arm/mach-bcmring/Kconfig" | |
802 | ||
1da177e4 LT |
803 | source "arch/arm/mach-clps711x/Kconfig" |
804 | ||
d94f944e AV |
805 | source "arch/arm/mach-cns3xxx/Kconfig" |
806 | ||
95b8f20f RK |
807 | source "arch/arm/mach-davinci/Kconfig" |
808 | ||
809 | source "arch/arm/mach-dove/Kconfig" | |
810 | ||
e7736d47 LB |
811 | source "arch/arm/mach-ep93xx/Kconfig" |
812 | ||
1da177e4 LT |
813 | source "arch/arm/mach-footbridge/Kconfig" |
814 | ||
59d3a193 PZ |
815 | source "arch/arm/mach-gemini/Kconfig" |
816 | ||
95b8f20f RK |
817 | source "arch/arm/mach-h720x/Kconfig" |
818 | ||
1da177e4 LT |
819 | source "arch/arm/mach-integrator/Kconfig" |
820 | ||
3f7e5815 LB |
821 | source "arch/arm/mach-iop32x/Kconfig" |
822 | ||
823 | source "arch/arm/mach-iop33x/Kconfig" | |
1da177e4 | 824 | |
285f5fa7 DW |
825 | source "arch/arm/mach-iop13xx/Kconfig" |
826 | ||
1da177e4 LT |
827 | source "arch/arm/mach-ixp4xx/Kconfig" |
828 | ||
829 | source "arch/arm/mach-ixp2000/Kconfig" | |
830 | ||
c4713074 LB |
831 | source "arch/arm/mach-ixp23xx/Kconfig" |
832 | ||
95b8f20f RK |
833 | source "arch/arm/mach-kirkwood/Kconfig" |
834 | ||
835 | source "arch/arm/mach-ks8695/Kconfig" | |
836 | ||
837 | source "arch/arm/mach-lh7a40x/Kconfig" | |
838 | ||
777f9beb LB |
839 | source "arch/arm/mach-loki/Kconfig" |
840 | ||
95b8f20f RK |
841 | source "arch/arm/mach-msm/Kconfig" |
842 | ||
794d15b2 SS |
843 | source "arch/arm/mach-mv78xx0/Kconfig" |
844 | ||
95b8f20f | 845 | source "arch/arm/plat-mxc/Kconfig" |
1da177e4 | 846 | |
95b8f20f | 847 | source "arch/arm/mach-netx/Kconfig" |
49cbe786 | 848 | |
95b8f20f RK |
849 | source "arch/arm/mach-nomadik/Kconfig" |
850 | source "arch/arm/plat-nomadik/Kconfig" | |
851 | ||
852 | source "arch/arm/mach-ns9xxx/Kconfig" | |
1da177e4 | 853 | |
186f93ea | 854 | source "arch/arm/mach-nuc93x/Kconfig" |
1da177e4 | 855 | |
d48af15e TL |
856 | source "arch/arm/plat-omap/Kconfig" |
857 | ||
858 | source "arch/arm/mach-omap1/Kconfig" | |
1da177e4 | 859 | |
1dbae815 TL |
860 | source "arch/arm/mach-omap2/Kconfig" |
861 | ||
9dd0b194 | 862 | source "arch/arm/mach-orion5x/Kconfig" |
585cf175 | 863 | |
95b8f20f RK |
864 | source "arch/arm/mach-pxa/Kconfig" |
865 | source "arch/arm/plat-pxa/Kconfig" | |
585cf175 | 866 | |
95b8f20f RK |
867 | source "arch/arm/mach-mmp/Kconfig" |
868 | ||
869 | source "arch/arm/mach-realview/Kconfig" | |
870 | ||
871 | source "arch/arm/mach-sa1100/Kconfig" | |
edabd38e | 872 | |
cf383678 | 873 | source "arch/arm/plat-samsung/Kconfig" |
a21765a7 | 874 | source "arch/arm/plat-s3c24xx/Kconfig" |
c4ffccdd | 875 | source "arch/arm/plat-s5p/Kconfig" |
a21765a7 | 876 | |
cee37e50 | 877 | source "arch/arm/plat-spear/Kconfig" |
a21765a7 BD |
878 | |
879 | if ARCH_S3C2410 | |
880 | source "arch/arm/mach-s3c2400/Kconfig" | |
1da177e4 | 881 | source "arch/arm/mach-s3c2410/Kconfig" |
a21765a7 | 882 | source "arch/arm/mach-s3c2412/Kconfig" |
f1290a49 | 883 | source "arch/arm/mach-s3c2416/Kconfig" |
a21765a7 | 884 | source "arch/arm/mach-s3c2440/Kconfig" |
e4d06e39 | 885 | source "arch/arm/mach-s3c2443/Kconfig" |
a21765a7 | 886 | endif |
1da177e4 | 887 | |
a08ab637 | 888 | if ARCH_S3C64XX |
431107ea | 889 | source "arch/arm/mach-s3c64xx/Kconfig" |
a08ab637 BD |
890 | endif |
891 | ||
c4ffccdd KK |
892 | source "arch/arm/mach-s5p6440/Kconfig" |
893 | ||
550db7f1 | 894 | source "arch/arm/mach-s5p6442/Kconfig" |
7bd0f2f5 | 895 | |
5a7652f2 | 896 | source "arch/arm/mach-s5pc100/Kconfig" |
5a7652f2 | 897 | |
170f4e42 KK |
898 | source "arch/arm/mach-s5pv210/Kconfig" |
899 | ||
882d01f9 | 900 | source "arch/arm/mach-shmobile/Kconfig" |
52c543f9 | 901 | |
882d01f9 | 902 | source "arch/arm/plat-stmp3xxx/Kconfig" |
9e73c84c | 903 | |
95b8f20f | 904 | source "arch/arm/mach-u300/Kconfig" |
1da177e4 | 905 | |
95b8f20f | 906 | source "arch/arm/mach-ux500/Kconfig" |
1da177e4 LT |
907 | |
908 | source "arch/arm/mach-versatile/Kconfig" | |
909 | ||
ceade897 RK |
910 | source "arch/arm/mach-vexpress/Kconfig" |
911 | ||
7ec80ddf | 912 | source "arch/arm/mach-w90x900/Kconfig" |
913 | ||
1da177e4 LT |
914 | # Definitions to make life easier |
915 | config ARCH_ACORN | |
916 | bool | |
917 | ||
7ae1f7ec LB |
918 | config PLAT_IOP |
919 | bool | |
469d3044 | 920 | select GENERIC_CLOCKEVENTS |
7ae1f7ec | 921 | |
69b02f6a LB |
922 | config PLAT_ORION |
923 | bool | |
924 | ||
bd5ce433 EM |
925 | config PLAT_PXA |
926 | bool | |
927 | ||
f4b8b319 RK |
928 | config PLAT_VERSATILE |
929 | bool | |
930 | ||
e3887714 RK |
931 | config ARM_TIMER_SP804 |
932 | bool | |
933 | ||
1da177e4 LT |
934 | source arch/arm/mm/Kconfig |
935 | ||
afe4b25e LB |
936 | config IWMMXT |
937 | bool "Enable iWMMXt support" | |
40305a58 EM |
938 | depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK |
939 | default y if PXA27x || PXA3xx || ARCH_MMP | |
afe4b25e LB |
940 | help |
941 | Enable support for iWMMXt context switching at run time if | |
942 | running on a CPU that supports it. | |
943 | ||
1da177e4 LT |
944 | # bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER |
945 | config XSCALE_PMU | |
946 | bool | |
947 | depends on CPU_XSCALE && !XSCALE_PMU_TIMER | |
948 | default y | |
949 | ||
0f4f0672 | 950 | config CPU_HAS_PMU |
8954bb0d WD |
951 | depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \ |
952 | (!ARCH_OMAP3 || OMAP3_EMU) | |
0f4f0672 JI |
953 | default y |
954 | bool | |
955 | ||
3b93e7b0 HC |
956 | if !MMU |
957 | source "arch/arm/Kconfig-nommu" | |
958 | endif | |
959 | ||
9cba3ccc CM |
960 | config ARM_ERRATA_411920 |
961 | bool "ARM errata: Invalidation of the Instruction Cache operation can fail" | |
962 | depends on CPU_V6 && !SMP | |
963 | help | |
964 | Invalidation of the Instruction Cache operation can | |
965 | fail. This erratum is present in 1136 (before r1p4), 1156 and 1176. | |
966 | It does not affect the MPCore. This option enables the ARM Ltd. | |
967 | recommended workaround. | |
968 | ||
7ce236fc CM |
969 | config ARM_ERRATA_430973 |
970 | bool "ARM errata: Stale prediction on replaced interworking branch" | |
971 | depends on CPU_V7 | |
972 | help | |
973 | This option enables the workaround for the 430973 Cortex-A8 | |
974 | (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb | |
975 | interworking branch is replaced with another code sequence at the | |
976 | same virtual address, whether due to self-modifying code or virtual | |
977 | to physical address re-mapping, Cortex-A8 does not recover from the | |
978 | stale interworking branch prediction. This results in Cortex-A8 | |
979 | executing the new code sequence in the incorrect ARM or Thumb state. | |
980 | The workaround enables the BTB/BTAC operations by setting ACTLR.IBE | |
981 | and also flushes the branch target cache at every context switch. | |
982 | Note that setting specific bits in the ACTLR register may not be | |
983 | available in non-secure mode. | |
984 | ||
855c551f CM |
985 | config ARM_ERRATA_458693 |
986 | bool "ARM errata: Processor deadlock when a false hazard is created" | |
987 | depends on CPU_V7 | |
988 | help | |
989 | This option enables the workaround for the 458693 Cortex-A8 (r2p0) | |
990 | erratum. For very specific sequences of memory operations, it is | |
991 | possible for a hazard condition intended for a cache line to instead | |
992 | be incorrectly associated with a different cache line. This false | |
993 | hazard might then cause a processor deadlock. The workaround enables | |
994 | the L1 caching of the NEON accesses and disables the PLD instruction | |
995 | in the ACTLR register. Note that setting specific bits in the ACTLR | |
996 | register may not be available in non-secure mode. | |
997 | ||
0516e464 CM |
998 | config ARM_ERRATA_460075 |
999 | bool "ARM errata: Data written to the L2 cache can be overwritten with stale data" | |
1000 | depends on CPU_V7 | |
1001 | help | |
1002 | This option enables the workaround for the 460075 Cortex-A8 (r2p0) | |
1003 | erratum. Any asynchronous access to the L2 cache may encounter a | |
1004 | situation in which recent store transactions to the L2 cache are lost | |
1005 | and overwritten with stale memory contents from external memory. The | |
1006 | workaround disables the write-allocate mode for the L2 cache via the | |
1007 | ACTLR register. Note that setting specific bits in the ACTLR register | |
1008 | may not be available in non-secure mode. | |
1009 | ||
9e65582a SS |
1010 | config PL310_ERRATA_588369 |
1011 | bool "Clean & Invalidate maintenance operations do not invalidate clean lines" | |
1012 | depends on CACHE_L2X0 && ARCH_OMAP4 | |
1013 | help | |
1014 | The PL310 L2 cache controller implements three types of Clean & | |
1015 | Invalidate maintenance operations: by Physical Address | |
1016 | (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC). | |
1017 | They are architecturally defined to behave as the execution of a | |
1018 | clean operation followed immediately by an invalidate operation, | |
1019 | both performing to the same memory location. This functionality | |
1020 | is not correctly implemented in PL310 as clean lines are not | |
1021 | invalidated as a result of these operations. Note that this errata | |
1022 | uses Texas Instrument's secure monitor api. | |
1da177e4 LT |
1023 | endmenu |
1024 | ||
1025 | source "arch/arm/common/Kconfig" | |
1026 | ||
1027 | config FORCE_MAX_ZONEORDER | |
1028 | int | |
1029 | depends on SA1111 | |
1030 | default "9" | |
1031 | ||
1032 | menu "Bus support" | |
1033 | ||
1034 | config ARM_AMBA | |
1035 | bool | |
1036 | ||
1037 | config ISA | |
1038 | bool | |
1da177e4 LT |
1039 | help |
1040 | Find out whether you have ISA slots on your motherboard. ISA is the | |
1041 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
1042 | inside your box. Other bus systems are PCI, EISA, MicroChannel | |
1043 | (MCA) or VESA. ISA is an older system, now being displaced by PCI; | |
1044 | newer boards don't support it. If you have ISA, say Y, otherwise N. | |
1045 | ||
065909b9 | 1046 | # Select ISA DMA controller support |
1da177e4 LT |
1047 | config ISA_DMA |
1048 | bool | |
065909b9 | 1049 | select ISA_DMA_API |
1da177e4 | 1050 | |
065909b9 | 1051 | # Select ISA DMA interface |
5cae841b AV |
1052 | config ISA_DMA_API |
1053 | bool | |
5cae841b | 1054 | |
1da177e4 | 1055 | config PCI |
a0113a99 | 1056 | bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE |
1da177e4 LT |
1057 | help |
1058 | Find out whether you have a PCI motherboard. PCI is the name of a | |
1059 | bus system, i.e. the way the CPU talks to the other stuff inside | |
1060 | your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or | |
1061 | VESA. If you have PCI, say Y, otherwise N. | |
1062 | ||
52882173 AV |
1063 | config PCI_DOMAINS |
1064 | bool | |
1065 | depends on PCI | |
1066 | ||
36e23590 MW |
1067 | config PCI_SYSCALL |
1068 | def_bool PCI | |
1069 | ||
1da177e4 LT |
1070 | # Select the host bridge type |
1071 | config PCI_HOST_VIA82C505 | |
1072 | bool | |
1073 | depends on PCI && ARCH_SHARK | |
1074 | default y | |
1075 | ||
a0113a99 MR |
1076 | config PCI_HOST_ITE8152 |
1077 | bool | |
1078 | depends on PCI && MACH_ARMCORE | |
1079 | default y | |
1080 | select DMABOUNCE | |
1081 | ||
1da177e4 LT |
1082 | source "drivers/pci/Kconfig" |
1083 | ||
1084 | source "drivers/pcmcia/Kconfig" | |
1085 | ||
1086 | endmenu | |
1087 | ||
1088 | menu "Kernel Features" | |
1089 | ||
0567a0c0 KH |
1090 | source "kernel/time/Kconfig" |
1091 | ||
1da177e4 LT |
1092 | config SMP |
1093 | bool "Symmetric Multi-Processing (EXPERIMENTAL)" | |
42578c82 | 1094 | depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\ |
59ac59f6 RK |
1095 | MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 ||\ |
1096 | ARCH_U8500 || ARCH_VEXPRESS_CA9X4) | |
bc28248e | 1097 | depends on GENERIC_CLOCKEVENTS |
f6dd9fa5 | 1098 | select USE_GENERIC_SMP_HELPERS |
59ac59f6 | 1099 | select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500 || ARCH_VEXPRESS_CA9X4) |
1da177e4 LT |
1100 | help |
1101 | This enables support for systems with more than one CPU. If you have | |
1102 | a system with only one CPU, like most personal computers, say N. If | |
1103 | you have a system with more than one CPU, say Y. | |
1104 | ||
1105 | If you say N here, the kernel will run on single and multiprocessor | |
1106 | machines, but will use only one CPU of a multiprocessor machine. If | |
1107 | you say Y here, the kernel will run on many, but not all, single | |
1108 | processor machines. On a single processor machine, the kernel will | |
1109 | run faster if you say N here. | |
1110 | ||
03502faa | 1111 | See also <file:Documentation/i386/IO-APIC.txt>, |
1da177e4 LT |
1112 | <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at |
1113 | <http://www.linuxdoc.org/docs.html#howto>. | |
1114 | ||
1115 | If you don't know what to do here, say N. | |
1116 | ||
a8cbcd92 RK |
1117 | config HAVE_ARM_SCU |
1118 | bool | |
1119 | depends on SMP | |
1120 | help | |
1121 | This option enables support for the ARM system coherency unit | |
1122 | ||
f32f4ce2 RK |
1123 | config HAVE_ARM_TWD |
1124 | bool | |
1125 | depends on SMP | |
1126 | help | |
1127 | This options enables support for the ARM timer and watchdog unit | |
1128 | ||
8d5796d2 LB |
1129 | choice |
1130 | prompt "Memory split" | |
1131 | default VMSPLIT_3G | |
1132 | help | |
1133 | Select the desired split between kernel and user memory. | |
1134 | ||
1135 | If you are not absolutely sure what you are doing, leave this | |
1136 | option alone! | |
1137 | ||
1138 | config VMSPLIT_3G | |
1139 | bool "3G/1G user/kernel split" | |
1140 | config VMSPLIT_2G | |
1141 | bool "2G/2G user/kernel split" | |
1142 | config VMSPLIT_1G | |
1143 | bool "1G/3G user/kernel split" | |
1144 | endchoice | |
1145 | ||
1146 | config PAGE_OFFSET | |
1147 | hex | |
1148 | default 0x40000000 if VMSPLIT_1G | |
1149 | default 0x80000000 if VMSPLIT_2G | |
1150 | default 0xC0000000 | |
1151 | ||
1da177e4 LT |
1152 | config NR_CPUS |
1153 | int "Maximum number of CPUs (2-32)" | |
1154 | range 2 32 | |
1155 | depends on SMP | |
1156 | default "4" | |
1157 | ||
a054a811 RK |
1158 | config HOTPLUG_CPU |
1159 | bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" | |
1160 | depends on SMP && HOTPLUG && EXPERIMENTAL | |
1161 | help | |
1162 | Say Y here to experiment with turning CPUs off and on. CPUs | |
1163 | can be controlled through /sys/devices/system/cpu. | |
1164 | ||
37ee16ae RK |
1165 | config LOCAL_TIMERS |
1166 | bool "Use local timer interrupts" | |
42578c82 | 1167 | depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \ |
850265e8 | 1168 | REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500) |
37ee16ae | 1169 | default y |
850265e8 | 1170 | select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500) |
37ee16ae RK |
1171 | help |
1172 | Enable support for local timers on SMP platforms, rather then the | |
1173 | legacy IPI broadcast method. Local timers allows the system | |
1174 | accounting to be spread across the timer interval, preventing a | |
1175 | "thundering herd" at every timer tick. | |
1176 | ||
d45a398f | 1177 | source kernel/Kconfig.preempt |
1da177e4 | 1178 | |
f8065813 RK |
1179 | config HZ |
1180 | int | |
1181 | default 128 if ARCH_L7200 | |
170f4e42 | 1182 | default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || ARCH_S5P6442 || ARCH_S5PV210 |
bfe65704 | 1183 | default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER |
5248c657 | 1184 | default AT91_TIMER_HZ if ARCH_AT91 |
f8065813 RK |
1185 | default 100 |
1186 | ||
16c79651 CM |
1187 | config THUMB2_KERNEL |
1188 | bool "Compile the kernel in Thumb-2 mode" | |
1189 | depends on CPU_V7 && EXPERIMENTAL | |
1190 | select AEABI | |
1191 | select ARM_ASM_UNIFIED | |
1192 | help | |
1193 | By enabling this option, the kernel will be compiled in | |
1194 | Thumb-2 mode. A compiler/assembler that understand the unified | |
1195 | ARM-Thumb syntax is needed. | |
1196 | ||
1197 | If unsure, say N. | |
1198 | ||
0becb088 CM |
1199 | config ARM_ASM_UNIFIED |
1200 | bool | |
1201 | ||
704bdda0 NP |
1202 | config AEABI |
1203 | bool "Use the ARM EABI to compile the kernel" | |
1204 | help | |
1205 | This option allows for the kernel to be compiled using the latest | |
1206 | ARM ABI (aka EABI). This is only useful if you are using a user | |
1207 | space environment that is also compiled with EABI. | |
1208 | ||
1209 | Since there are major incompatibilities between the legacy ABI and | |
1210 | EABI, especially with regard to structure member alignment, this | |
1211 | option also changes the kernel syscall calling convention to | |
1212 | disambiguate both ABIs and allow for backward compatibility support | |
1213 | (selected with CONFIG_OABI_COMPAT). | |
1214 | ||
1215 | To use this you need GCC version 4.0.0 or later. | |
1216 | ||
6c90c872 | 1217 | config OABI_COMPAT |
a73a3ff1 | 1218 | bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)" |
61c484d4 | 1219 | depends on AEABI && EXPERIMENTAL |
6c90c872 NP |
1220 | default y |
1221 | help | |
1222 | This option preserves the old syscall interface along with the | |
1223 | new (ARM EABI) one. It also provides a compatibility layer to | |
1224 | intercept syscalls that have structure arguments which layout | |
1225 | in memory differs between the legacy ABI and the new ARM EABI | |
1226 | (only for non "thumb" binaries). This option adds a tiny | |
1227 | overhead to all syscalls and produces a slightly larger kernel. | |
1228 | If you know you'll be using only pure EABI user space then you | |
1229 | can say N here. If this option is not selected and you attempt | |
1230 | to execute a legacy ABI binary then the result will be | |
1231 | UNPREDICTABLE (in fact it can be predicted that it won't work | |
1232 | at all). If in doubt say Y. | |
1233 | ||
eb33575c | 1234 | config ARCH_HAS_HOLES_MEMORYMODEL |
e80d6a24 | 1235 | bool |
e80d6a24 | 1236 | |
07a2f737 | 1237 | # Discontigmem is deprecated |
3f22ab27 | 1238 | config ARCH_DISCONTIGMEM_ENABLE |
1da177e4 | 1239 | bool |
1da177e4 | 1240 | |
05944d74 RK |
1241 | config ARCH_SPARSEMEM_ENABLE |
1242 | bool | |
1243 | ||
07a2f737 RK |
1244 | config ARCH_SPARSEMEM_DEFAULT |
1245 | def_bool ARCH_SPARSEMEM_ENABLE | |
1246 | ||
05944d74 | 1247 | config ARCH_SELECT_MEMORY_MODEL |
07a2f737 | 1248 | def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE |
05944d74 | 1249 | |
c80d79d7 YG |
1250 | config NODES_SHIFT |
1251 | int | |
1252 | default "4" if ARCH_LH7A40X | |
1253 | default "2" | |
1254 | depends on NEED_MULTIPLE_NODES | |
1255 | ||
053a96ca NP |
1256 | config HIGHMEM |
1257 | bool "High Memory Support (EXPERIMENTAL)" | |
1258 | depends on MMU && EXPERIMENTAL | |
1259 | help | |
1260 | The address space of ARM processors is only 4 Gigabytes large | |
1261 | and it has to accommodate user address space, kernel address | |
1262 | space as well as some memory mapped IO. That means that, if you | |
1263 | have a large amount of physical memory and/or IO, not all of the | |
1264 | memory can be "permanently mapped" by the kernel. The physical | |
1265 | memory that is not permanently mapped is called "high memory". | |
1266 | ||
1267 | Depending on the selected kernel/user memory split, minimum | |
1268 | vmalloc space and actual amount of RAM, you may not need this | |
1269 | option which should result in a slightly faster kernel. | |
1270 | ||
1271 | If unsure, say n. | |
1272 | ||
65cec8e3 RK |
1273 | config HIGHPTE |
1274 | bool "Allocate 2nd-level pagetables from highmem" | |
1275 | depends on HIGHMEM | |
1276 | depends on !OUTER_CACHE | |
1277 | ||
1b8873a0 JI |
1278 | config HW_PERF_EVENTS |
1279 | bool "Enable hardware performance counter support for perf events" | |
fe166148 | 1280 | depends on PERF_EVENTS && CPU_HAS_PMU |
1b8873a0 JI |
1281 | default y |
1282 | help | |
1283 | Enable hardware performance counter support for perf events. If | |
1284 | disabled, perf events will use software events only. | |
1285 | ||
3f22ab27 DH |
1286 | source "mm/Kconfig" |
1287 | ||
1da177e4 LT |
1288 | config LEDS |
1289 | bool "Timer and CPU usage LEDs" | |
e055d5bf | 1290 | depends on ARCH_CDB89712 || ARCH_EBSA110 || \ |
8c8fdbc9 | 1291 | ARCH_EBSA285 || ARCH_INTEGRATOR || \ |
1da177e4 LT |
1292 | ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \ |
1293 | ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \ | |
73a59c1c | 1294 | ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \ |
25329671 | 1295 | ARCH_AT91 || ARCH_DAVINCI || \ |
ff3042fb | 1296 | ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW |
1da177e4 LT |
1297 | help |
1298 | If you say Y here, the LEDs on your machine will be used | |
1299 | to provide useful information about your current system status. | |
1300 | ||
1301 | If you are compiling a kernel for a NetWinder or EBSA-285, you will | |
1302 | be able to select which LEDs are active using the options below. If | |
1303 | you are compiling a kernel for the EBSA-110 or the LART however, the | |
1304 | red LED will simply flash regularly to indicate that the system is | |
1305 | still functional. It is safe to say Y here if you have a CATS | |
1306 | system, but the driver will do nothing. | |
1307 | ||
1308 | config LEDS_TIMER | |
1309 | bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \ | |
eebdf7d7 DB |
1310 | OMAP_OSK_MISTRAL || MACH_OMAP_H2 \ |
1311 | || MACH_OMAP_PERSEUS2 | |
1da177e4 | 1312 | depends on LEDS |
0567a0c0 | 1313 | depends on !GENERIC_CLOCKEVENTS |
1da177e4 LT |
1314 | default y if ARCH_EBSA110 |
1315 | help | |
1316 | If you say Y here, one of the system LEDs (the green one on the | |
1317 | NetWinder, the amber one on the EBSA285, or the red one on the LART) | |
1318 | will flash regularly to indicate that the system is still | |
1319 | operational. This is mainly useful to kernel hackers who are | |
1320 | debugging unstable kernels. | |
1321 | ||
1322 | The LART uses the same LED for both Timer LED and CPU usage LED | |
1323 | functions. You may choose to use both, but the Timer LED function | |
1324 | will overrule the CPU usage LED. | |
1325 | ||
1326 | config LEDS_CPU | |
1327 | bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \ | |
eebdf7d7 DB |
1328 | !ARCH_OMAP) \ |
1329 | || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \ | |
1330 | || MACH_OMAP_PERSEUS2 | |
1da177e4 LT |
1331 | depends on LEDS |
1332 | help | |
1333 | If you say Y here, the red LED will be used to give a good real | |
1334 | time indication of CPU usage, by lighting whenever the idle task | |
1335 | is not currently executing. | |
1336 | ||
1337 | The LART uses the same LED for both Timer LED and CPU usage LED | |
1338 | functions. You may choose to use both, but the Timer LED function | |
1339 | will overrule the CPU usage LED. | |
1340 | ||
1341 | config ALIGNMENT_TRAP | |
1342 | bool | |
f12d0d7c | 1343 | depends on CPU_CP15_MMU |
1da177e4 | 1344 | default y if !ARCH_EBSA110 |
e119bfff | 1345 | select HAVE_PROC_CPU if PROC_FS |
1da177e4 | 1346 | help |
84eb8d06 | 1347 | ARM processors cannot fetch/store information which is not |
1da177e4 LT |
1348 | naturally aligned on the bus, i.e., a 4 byte fetch must start at an |
1349 | address divisible by 4. On 32-bit ARM processors, these non-aligned | |
1350 | fetch/store instructions will be emulated in software if you say | |
1351 | here, which has a severe performance impact. This is necessary for | |
1352 | correct operation of some network protocols. With an IP-only | |
1353 | configuration it is safe to say N, otherwise say Y. | |
1354 | ||
39ec58f3 LB |
1355 | config UACCESS_WITH_MEMCPY |
1356 | bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)" | |
1357 | depends on MMU && EXPERIMENTAL | |
1358 | default y if CPU_FEROCEON | |
1359 | help | |
1360 | Implement faster copy_to_user and clear_user methods for CPU | |
1361 | cores where a 8-word STM instruction give significantly higher | |
1362 | memory write throughput than a sequence of individual 32bit stores. | |
1363 | ||
1364 | A possible side effect is a slight increase in scheduling latency | |
1365 | between threads sharing the same address space if they invoke | |
1366 | such copy operations with large buffers. | |
1367 | ||
1368 | However, if the CPU data cache is using a write-allocate mode, | |
1369 | this option is unlikely to provide any performance gain. | |
1370 | ||
1da177e4 LT |
1371 | endmenu |
1372 | ||
1373 | menu "Boot options" | |
1374 | ||
1375 | # Compressed boot loader in ROM. Yes, we really want to ask about | |
1376 | # TEXT and BSS so we preserve their values in the config files. | |
1377 | config ZBOOT_ROM_TEXT | |
1378 | hex "Compressed ROM boot loader base address" | |
1379 | default "0" | |
1380 | help | |
1381 | The physical address at which the ROM-able zImage is to be | |
1382 | placed in the target. Platforms which normally make use of | |
1383 | ROM-able zImage formats normally set this to a suitable | |
1384 | value in their defconfig file. | |
1385 | ||
1386 | If ZBOOT_ROM is not enabled, this has no effect. | |
1387 | ||
1388 | config ZBOOT_ROM_BSS | |
1389 | hex "Compressed ROM boot loader BSS address" | |
1390 | default "0" | |
1391 | help | |
f8c440b2 DF |
1392 | The base address of an area of read/write memory in the target |
1393 | for the ROM-able zImage which must be available while the | |
1394 | decompressor is running. It must be large enough to hold the | |
1395 | entire decompressed kernel plus an additional 128 KiB. | |
1396 | Platforms which normally make use of ROM-able zImage formats | |
1397 | normally set this to a suitable value in their defconfig file. | |
1da177e4 LT |
1398 | |
1399 | If ZBOOT_ROM is not enabled, this has no effect. | |
1400 | ||
1401 | config ZBOOT_ROM | |
1402 | bool "Compressed boot loader in ROM/flash" | |
1403 | depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS | |
1404 | help | |
1405 | Say Y here if you intend to execute your compressed kernel image | |
1406 | (zImage) directly from ROM or flash. If unsure, say N. | |
1407 | ||
1408 | config CMDLINE | |
1409 | string "Default kernel command string" | |
1410 | default "" | |
1411 | help | |
1412 | On some architectures (EBSA110 and CATS), there is currently no way | |
1413 | for the boot loader to pass arguments to the kernel. For these | |
1414 | architectures, you should supply some command-line options at build | |
1415 | time by entering them here. As a minimum, you should specify the | |
1416 | memory size and the root device (e.g., mem=64M root=/dev/nfs). | |
1417 | ||
92d2040d AH |
1418 | config CMDLINE_FORCE |
1419 | bool "Always use the default kernel command string" | |
1420 | depends on CMDLINE != "" | |
1421 | help | |
1422 | Always use the default kernel command string, even if the boot | |
1423 | loader passes other arguments to the kernel. | |
1424 | This is useful if you cannot or don't want to change the | |
1425 | command-line options your boot loader passes to the kernel. | |
1426 | ||
1427 | If unsure, say N. | |
1428 | ||
1da177e4 LT |
1429 | config XIP_KERNEL |
1430 | bool "Kernel Execute-In-Place from ROM" | |
1431 | depends on !ZBOOT_ROM | |
1432 | help | |
1433 | Execute-In-Place allows the kernel to run from non-volatile storage | |
1434 | directly addressable by the CPU, such as NOR flash. This saves RAM | |
1435 | space since the text section of the kernel is not loaded from flash | |
1436 | to RAM. Read-write sections, such as the data section and stack, | |
1437 | are still copied to RAM. The XIP kernel is not compressed since | |
1438 | it has to run directly from flash, so it will take more space to | |
1439 | store it. The flash address used to link the kernel object files, | |
1440 | and for storing it, is configuration dependent. Therefore, if you | |
1441 | say Y here, you must know the proper physical address where to | |
1442 | store the kernel image depending on your own flash memory usage. | |
1443 | ||
1444 | Also note that the make target becomes "make xipImage" rather than | |
1445 | "make zImage" or "make Image". The final kernel binary to put in | |
1446 | ROM memory will be arch/arm/boot/xipImage. | |
1447 | ||
1448 | If unsure, say N. | |
1449 | ||
1450 | config XIP_PHYS_ADDR | |
1451 | hex "XIP Kernel Physical Location" | |
1452 | depends on XIP_KERNEL | |
1453 | default "0x00080000" | |
1454 | help | |
1455 | This is the physical address in your flash memory the kernel will | |
1456 | be linked for and stored to. This address is dependent on your | |
1457 | own flash usage. | |
1458 | ||
c587e4a6 RP |
1459 | config KEXEC |
1460 | bool "Kexec system call (EXPERIMENTAL)" | |
1461 | depends on EXPERIMENTAL | |
1462 | help | |
1463 | kexec is a system call that implements the ability to shutdown your | |
1464 | current kernel, and to start another kernel. It is like a reboot | |
01dd2fbf | 1465 | but it is independent of the system firmware. And like a reboot |
c587e4a6 RP |
1466 | you can start any kernel with it, not just Linux. |
1467 | ||
1468 | It is an ongoing process to be certain the hardware in a machine | |
1469 | is properly shutdown, so do not be surprised if this code does not | |
1470 | initially work for you. It may help to enable device hotplugging | |
1471 | support. | |
1472 | ||
4cd9d6f7 RP |
1473 | config ATAGS_PROC |
1474 | bool "Export atags in procfs" | |
b98d7291 UL |
1475 | depends on KEXEC |
1476 | default y | |
4cd9d6f7 RP |
1477 | help |
1478 | Should the atags used to boot the kernel be exported in an "atags" | |
1479 | file in procfs. Useful with kexec. | |
1480 | ||
1da177e4 LT |
1481 | endmenu |
1482 | ||
ac9d7efc | 1483 | menu "CPU Power Management" |
1da177e4 | 1484 | |
89c52ed4 | 1485 | if ARCH_HAS_CPUFREQ |
1da177e4 LT |
1486 | |
1487 | source "drivers/cpufreq/Kconfig" | |
1488 | ||
1489 | config CPU_FREQ_SA1100 | |
1490 | bool | |
1da177e4 LT |
1491 | |
1492 | config CPU_FREQ_SA1110 | |
1493 | bool | |
1da177e4 LT |
1494 | |
1495 | config CPU_FREQ_INTEGRATOR | |
1496 | tristate "CPUfreq driver for ARM Integrator CPUs" | |
1497 | depends on ARCH_INTEGRATOR && CPU_FREQ | |
1498 | default y | |
1499 | help | |
1500 | This enables the CPUfreq driver for ARM Integrator CPUs. | |
1501 | ||
1502 | For details, take a look at <file:Documentation/cpu-freq>. | |
1503 | ||
1504 | If in doubt, say Y. | |
1505 | ||
9e2697ff RK |
1506 | config CPU_FREQ_PXA |
1507 | bool | |
1508 | depends on CPU_FREQ && ARCH_PXA && PXA25x | |
1509 | default y | |
1510 | select CPU_FREQ_DEFAULT_GOV_USERSPACE | |
1511 | ||
b3748ddd MB |
1512 | config CPU_FREQ_S3C64XX |
1513 | bool "CPUfreq support for Samsung S3C64XX CPUs" | |
1514 | depends on CPU_FREQ && CPU_S3C6410 | |
1515 | ||
9d56c02a BD |
1516 | config CPU_FREQ_S3C |
1517 | bool | |
1518 | help | |
1519 | Internal configuration node for common cpufreq on Samsung SoC | |
1520 | ||
1521 | config CPU_FREQ_S3C24XX | |
1522 | bool "CPUfreq driver for Samsung S3C24XX series CPUs" | |
1523 | depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL | |
1524 | select CPU_FREQ_S3C | |
1525 | help | |
1526 | This enables the CPUfreq driver for the Samsung S3C24XX family | |
1527 | of CPUs. | |
1528 | ||
1529 | For details, take a look at <file:Documentation/cpu-freq>. | |
1530 | ||
1531 | If in doubt, say N. | |
1532 | ||
1533 | config CPU_FREQ_S3C24XX_PLL | |
1534 | bool "Support CPUfreq changing of PLL frequency" | |
1535 | depends on CPU_FREQ_S3C24XX && EXPERIMENTAL | |
1536 | help | |
1537 | Compile in support for changing the PLL frequency from the | |
1538 | S3C24XX series CPUfreq driver. The PLL takes time to settle | |
1539 | after a frequency change, so by default it is not enabled. | |
1540 | ||
1541 | This also means that the PLL tables for the selected CPU(s) will | |
1542 | be built which may increase the size of the kernel image. | |
1543 | ||
1544 | config CPU_FREQ_S3C24XX_DEBUG | |
1545 | bool "Debug CPUfreq Samsung driver core" | |
1546 | depends on CPU_FREQ_S3C24XX | |
1547 | help | |
1548 | Enable s3c_freq_dbg for the Samsung S3C CPUfreq core | |
1549 | ||
1550 | config CPU_FREQ_S3C24XX_IODEBUG | |
1551 | bool "Debug CPUfreq Samsung driver IO timing" | |
1552 | depends on CPU_FREQ_S3C24XX | |
1553 | help | |
1554 | Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core | |
1555 | ||
e6d197a6 BD |
1556 | config CPU_FREQ_S3C24XX_DEBUGFS |
1557 | bool "Export debugfs for CPUFreq" | |
1558 | depends on CPU_FREQ_S3C24XX && DEBUG_FS | |
1559 | help | |
1560 | Export status information via debugfs. | |
1561 | ||
1da177e4 LT |
1562 | endif |
1563 | ||
ac9d7efc RK |
1564 | source "drivers/cpuidle/Kconfig" |
1565 | ||
1566 | endmenu | |
1567 | ||
1da177e4 LT |
1568 | menu "Floating point emulation" |
1569 | ||
1570 | comment "At least one emulation must be selected" | |
1571 | ||
1572 | config FPE_NWFPE | |
1573 | bool "NWFPE math emulation" | |
8993a44c | 1574 | depends on !AEABI || OABI_COMPAT |
1da177e4 LT |
1575 | ---help--- |
1576 | Say Y to include the NWFPE floating point emulator in the kernel. | |
1577 | This is necessary to run most binaries. Linux does not currently | |
1578 | support floating point hardware so you need to say Y here even if | |
1579 | your machine has an FPA or floating point co-processor podule. | |
1580 | ||
1581 | You may say N here if you are going to load the Acorn FPEmulator | |
1582 | early in the bootup. | |
1583 | ||
1584 | config FPE_NWFPE_XP | |
1585 | bool "Support extended precision" | |
bedf142b | 1586 | depends on FPE_NWFPE |
1da177e4 LT |
1587 | help |
1588 | Say Y to include 80-bit support in the kernel floating-point | |
1589 | emulator. Otherwise, only 32 and 64-bit support is compiled in. | |
1590 | Note that gcc does not generate 80-bit operations by default, | |
1591 | so in most cases this option only enlarges the size of the | |
1592 | floating point emulator without any good reason. | |
1593 | ||
1594 | You almost surely want to say N here. | |
1595 | ||
1596 | config FPE_FASTFPE | |
1597 | bool "FastFPE math emulation (EXPERIMENTAL)" | |
8993a44c | 1598 | depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL |
1da177e4 LT |
1599 | ---help--- |
1600 | Say Y here to include the FAST floating point emulator in the kernel. | |
1601 | This is an experimental much faster emulator which now also has full | |
1602 | precision for the mantissa. It does not support any exceptions. | |
1603 | It is very simple, and approximately 3-6 times faster than NWFPE. | |
1604 | ||
1605 | It should be sufficient for most programs. It may be not suitable | |
1606 | for scientific calculations, but you have to check this for yourself. | |
1607 | If you do not feel you need a faster FP emulation you should better | |
1608 | choose NWFPE. | |
1609 | ||
1610 | config VFP | |
1611 | bool "VFP-format floating point maths" | |
c00d4ffd | 1612 | depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON |
1da177e4 LT |
1613 | help |
1614 | Say Y to include VFP support code in the kernel. This is needed | |
1615 | if your hardware includes a VFP unit. | |
1616 | ||
1617 | Please see <file:Documentation/arm/VFP/release-notes.txt> for | |
1618 | release notes and additional status information. | |
1619 | ||
1620 | Say N if your target does not have VFP hardware. | |
1621 | ||
25ebee02 CM |
1622 | config VFPv3 |
1623 | bool | |
1624 | depends on VFP | |
1625 | default y if CPU_V7 | |
1626 | ||
b5872db4 CM |
1627 | config NEON |
1628 | bool "Advanced SIMD (NEON) Extension support" | |
1629 | depends on VFPv3 && CPU_V7 | |
1630 | help | |
1631 | Say Y to include support code for NEON, the ARMv7 Advanced SIMD | |
1632 | Extension. | |
1633 | ||
1da177e4 LT |
1634 | endmenu |
1635 | ||
1636 | menu "Userspace binary formats" | |
1637 | ||
1638 | source "fs/Kconfig.binfmt" | |
1639 | ||
1640 | config ARTHUR | |
1641 | tristate "RISC OS personality" | |
704bdda0 | 1642 | depends on !AEABI |
1da177e4 LT |
1643 | help |
1644 | Say Y here to include the kernel code necessary if you want to run | |
1645 | Acorn RISC OS/Arthur binaries under Linux. This code is still very | |
1646 | experimental; if this sounds frightening, say N and sleep in peace. | |
1647 | You can also say M here to compile this support as a module (which | |
1648 | will be called arthur). | |
1649 | ||
1650 | endmenu | |
1651 | ||
1652 | menu "Power management options" | |
1653 | ||
eceab4ac | 1654 | source "kernel/power/Kconfig" |
1da177e4 | 1655 | |
f4cb5700 JB |
1656 | config ARCH_SUSPEND_POSSIBLE |
1657 | def_bool y | |
1658 | ||
1da177e4 LT |
1659 | endmenu |
1660 | ||
d5950b43 SR |
1661 | source "net/Kconfig" |
1662 | ||
ac25150f | 1663 | source "drivers/Kconfig" |
1da177e4 LT |
1664 | |
1665 | source "fs/Kconfig" | |
1666 | ||
1da177e4 LT |
1667 | source "arch/arm/Kconfig.debug" |
1668 | ||
1669 | source "security/Kconfig" | |
1670 | ||
1671 | source "crypto/Kconfig" | |
1672 | ||
1673 | source "lib/Kconfig" |