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 |
2778f620 | 13 | select HAVE_MEMBLOCK |
12b824fb | 14 | select RTC_LIB |
75e7153a | 15 | select SYS_SUPPORTS_APM_EMULATION |
24b44a66 | 16 | select GENERIC_ATOMIC64 if (!CPU_32v6K) |
fe166148 | 17 | select HAVE_OPROFILE if (HAVE_PERF_EVENTS) |
5cbad0eb | 18 | select HAVE_ARCH_KGDB |
3f550096 | 19 | select HAVE_KPROBES if (!XIP_KERNEL) |
9edddaa2 | 20 | select HAVE_KRETPROBES if (HAVE_KPROBES) |
606576ce | 21 | select HAVE_FUNCTION_TRACER if (!XIP_KERNEL) |
1fe53268 | 22 | select HAVE_GENERIC_DMA_COHERENT |
e7db7b42 AT |
23 | select HAVE_KERNEL_GZIP |
24 | select HAVE_KERNEL_LZO | |
6e8699f7 | 25 | select HAVE_KERNEL_LZMA |
e360adbe | 26 | select HAVE_IRQ_WORK |
7ada189f JI |
27 | select HAVE_PERF_EVENTS |
28 | select PERF_USE_VMALLOC | |
e513f8bf | 29 | select HAVE_REGS_AND_STACK_ACCESS_API |
1da177e4 LT |
30 | help |
31 | The ARM series is a line of low-power-consumption RISC chip designs | |
f6c8965a | 32 | licensed by ARM Ltd and targeted at embedded applications and |
1da177e4 | 33 | handhelds such as the Compaq IPAQ. ARM-based PCs are no longer |
f6c8965a | 34 | manufactured, but legacy ARM-based PC hardware remains popular in |
1da177e4 LT |
35 | Europe. There is an ARM Linux project with a web page at |
36 | <http://www.arm.linux.org.uk/>. | |
37 | ||
1a189b97 RK |
38 | config HAVE_PWM |
39 | bool | |
40 | ||
75e7153a RB |
41 | config SYS_SUPPORTS_APM_EMULATION |
42 | bool | |
43 | ||
0a938b97 DB |
44 | config GENERIC_GPIO |
45 | bool | |
0a938b97 | 46 | |
5cfc8ee0 JS |
47 | config ARCH_USES_GETTIMEOFFSET |
48 | bool | |
49 | default n | |
746140c7 | 50 | |
0567a0c0 KH |
51 | config GENERIC_CLOCKEVENTS |
52 | bool | |
0567a0c0 | 53 | |
a8655e83 CM |
54 | config GENERIC_CLOCKEVENTS_BROADCAST |
55 | bool | |
56 | depends on GENERIC_CLOCKEVENTS | |
5388a6b2 | 57 | default y if SMP |
a8655e83 | 58 | |
bc581770 LW |
59 | config HAVE_TCM |
60 | bool | |
61 | select GENERIC_ALLOCATOR | |
62 | ||
e119bfff RK |
63 | config HAVE_PROC_CPU |
64 | bool | |
65 | ||
5ea81769 AV |
66 | config NO_IOPORT |
67 | bool | |
5ea81769 | 68 | |
1da177e4 LT |
69 | config EISA |
70 | bool | |
71 | ---help--- | |
72 | The Extended Industry Standard Architecture (EISA) bus was | |
73 | developed as an open alternative to the IBM MicroChannel bus. | |
74 | ||
75 | The EISA bus provided some of the features of the IBM MicroChannel | |
76 | bus while maintaining backward compatibility with cards made for | |
77 | the older ISA bus. The EISA bus saw limited use between 1988 and | |
78 | 1995 when it was made obsolete by the PCI bus. | |
79 | ||
80 | Say Y here if you are building a kernel for an EISA-based machine. | |
81 | ||
82 | Otherwise, say N. | |
83 | ||
84 | config SBUS | |
85 | bool | |
86 | ||
87 | config MCA | |
88 | bool | |
89 | help | |
90 | MicroChannel Architecture is found in some IBM PS/2 machines and | |
91 | laptops. It is a bus system similar to PCI or ISA. See | |
92 | <file:Documentation/mca.txt> (and especially the web page given | |
93 | there) before attempting to build an MCA bus kernel. | |
94 | ||
4a2581a0 TG |
95 | config GENERIC_HARDIRQS |
96 | bool | |
97 | default y | |
98 | ||
f16fb1ec RK |
99 | config STACKTRACE_SUPPORT |
100 | bool | |
101 | default y | |
102 | ||
f76e9154 NP |
103 | config HAVE_LATENCYTOP_SUPPORT |
104 | bool | |
105 | depends on !SMP | |
106 | default y | |
107 | ||
f16fb1ec RK |
108 | config LOCKDEP_SUPPORT |
109 | bool | |
110 | default y | |
111 | ||
7ad1bcb2 RK |
112 | config TRACE_IRQFLAGS_SUPPORT |
113 | bool | |
114 | default y | |
115 | ||
4a2581a0 TG |
116 | config HARDIRQS_SW_RESEND |
117 | bool | |
118 | default y | |
119 | ||
120 | config GENERIC_IRQ_PROBE | |
121 | bool | |
122 | default y | |
123 | ||
95c354fe NP |
124 | config GENERIC_LOCKBREAK |
125 | bool | |
126 | default y | |
127 | depends on SMP && PREEMPT | |
128 | ||
1da177e4 LT |
129 | config RWSEM_GENERIC_SPINLOCK |
130 | bool | |
131 | default y | |
132 | ||
133 | config RWSEM_XCHGADD_ALGORITHM | |
134 | bool | |
135 | ||
f0d1b0b3 DH |
136 | config ARCH_HAS_ILOG2_U32 |
137 | bool | |
f0d1b0b3 DH |
138 | |
139 | config ARCH_HAS_ILOG2_U64 | |
140 | bool | |
f0d1b0b3 | 141 | |
89c52ed4 BD |
142 | config ARCH_HAS_CPUFREQ |
143 | bool | |
144 | help | |
145 | Internal node to signify that the ARCH has CPUFREQ support | |
146 | and that the relevant menu configurations are displayed for | |
147 | it. | |
148 | ||
b89c3b16 AM |
149 | config GENERIC_HWEIGHT |
150 | bool | |
151 | default y | |
152 | ||
1da177e4 LT |
153 | config GENERIC_CALIBRATE_DELAY |
154 | bool | |
155 | default y | |
156 | ||
a08b6b79 Z |
157 | config ARCH_MAY_HAVE_PC_FDC |
158 | bool | |
159 | ||
5ac6da66 CL |
160 | config ZONE_DMA |
161 | bool | |
5ac6da66 | 162 | |
ccd7ab7f FT |
163 | config NEED_DMA_MAP_STATE |
164 | def_bool y | |
165 | ||
1da177e4 LT |
166 | config GENERIC_ISA_DMA |
167 | bool | |
168 | ||
1da177e4 LT |
169 | config FIQ |
170 | bool | |
171 | ||
034d2f5a AV |
172 | config ARCH_MTD_XIP |
173 | bool | |
174 | ||
60a752ef | 175 | config GENERIC_HARDIRQS_NO__DO_IRQ |
60a752ef PZ |
176 | def_bool y |
177 | ||
d6d502fa KK |
178 | config ARM_L1_CACHE_SHIFT_6 |
179 | bool | |
180 | help | |
181 | Setting ARM L1 cache line size to 64 Bytes. | |
182 | ||
c760fc19 HC |
183 | config VECTORS_BASE |
184 | hex | |
6afd6fae | 185 | default 0xffff0000 if MMU || CPU_HIGH_VECTOR |
c760fc19 HC |
186 | default DRAM_BASE if REMAP_VECTORS_TO_RAM |
187 | default 0x00000000 | |
188 | help | |
189 | The base address of exception vectors. | |
190 | ||
1da177e4 LT |
191 | source "init/Kconfig" |
192 | ||
dc52ddc0 MH |
193 | source "kernel/Kconfig.freezer" |
194 | ||
1da177e4 LT |
195 | menu "System Type" |
196 | ||
3c427975 HC |
197 | config MMU |
198 | bool "MMU-based Paged Memory Management Support" | |
199 | default y | |
200 | help | |
201 | Select if you want MMU-based virtualised addressing space | |
202 | support by paged memory management. If unsure, say 'Y'. | |
203 | ||
ccf50e23 RK |
204 | # |
205 | # The "ARM system type" choice list is ordered alphabetically by option | |
206 | # text. Please add new entries in the option alphabetic order. | |
207 | # | |
1da177e4 LT |
208 | choice |
209 | prompt "ARM system type" | |
6a0e2430 | 210 | default ARCH_VERSATILE |
1da177e4 | 211 | |
4af6fee1 DS |
212 | config ARCH_AAEC2000 |
213 | bool "Agilent AAEC-2000 based" | |
c750815e | 214 | select CPU_ARM920T |
4af6fee1 | 215 | select ARM_AMBA |
9483a578 | 216 | select HAVE_CLK |
5cfc8ee0 | 217 | select ARCH_USES_GETTIMEOFFSET |
4af6fee1 DS |
218 | help |
219 | This enables support for systems based on the Agilent AAEC-2000 | |
220 | ||
221 | config ARCH_INTEGRATOR | |
222 | bool "ARM Ltd. Integrator family" | |
223 | select ARM_AMBA | |
89c52ed4 | 224 | select ARCH_HAS_CPUFREQ |
d72fbdf0 | 225 | select COMMON_CLKDEV |
c5a0adb5 | 226 | select ICST |
13edd86d | 227 | select GENERIC_CLOCKEVENTS |
f4b8b319 | 228 | select PLAT_VERSATILE |
4af6fee1 DS |
229 | help |
230 | Support for ARM's Integrator platform. | |
231 | ||
232 | config ARCH_REALVIEW | |
233 | bool "ARM Ltd. RealView family" | |
234 | select ARM_AMBA | |
cf30fb4a | 235 | select COMMON_CLKDEV |
c5a0adb5 | 236 | select ICST |
ae30ceac | 237 | select GENERIC_CLOCKEVENTS |
eb7fffa3 | 238 | select ARCH_WANT_OPTIONAL_GPIOLIB |
f4b8b319 | 239 | select PLAT_VERSATILE |
e3887714 | 240 | select ARM_TIMER_SP804 |
b56ba8aa | 241 | select GPIO_PL061 if GPIOLIB |
4af6fee1 DS |
242 | help |
243 | This enables support for ARM Ltd RealView boards. | |
244 | ||
245 | config ARCH_VERSATILE | |
246 | bool "ARM Ltd. Versatile family" | |
247 | select ARM_AMBA | |
248 | select ARM_VIC | |
71a06da0 | 249 | select COMMON_CLKDEV |
c5a0adb5 | 250 | select ICST |
89df1272 | 251 | select GENERIC_CLOCKEVENTS |
bbeddc43 | 252 | select ARCH_WANT_OPTIONAL_GPIOLIB |
f4b8b319 | 253 | select PLAT_VERSATILE |
e3887714 | 254 | select ARM_TIMER_SP804 |
4af6fee1 DS |
255 | help |
256 | This enables support for ARM Ltd Versatile board. | |
257 | ||
ceade897 RK |
258 | config ARCH_VEXPRESS |
259 | bool "ARM Ltd. Versatile Express family" | |
260 | select ARCH_WANT_OPTIONAL_GPIOLIB | |
261 | select ARM_AMBA | |
262 | select ARM_TIMER_SP804 | |
263 | select COMMON_CLKDEV | |
264 | select GENERIC_CLOCKEVENTS | |
ceade897 RK |
265 | select HAVE_CLK |
266 | select ICST | |
267 | select PLAT_VERSATILE | |
268 | help | |
269 | This enables support for the ARM Ltd Versatile Express boards. | |
270 | ||
8fc5ffa0 AV |
271 | config ARCH_AT91 |
272 | bool "Atmel AT91" | |
f373e8c0 | 273 | select ARCH_REQUIRE_GPIOLIB |
93686ae8 | 274 | select HAVE_CLK |
4af6fee1 | 275 | help |
2b3b3516 AV |
276 | This enables support for systems based on the Atmel AT91RM9200, |
277 | AT91SAM9 and AT91CAP9 processors. | |
4af6fee1 | 278 | |
ccf50e23 RK |
279 | config ARCH_BCMRING |
280 | bool "Broadcom BCMRING" | |
281 | depends on MMU | |
282 | select CPU_V6 | |
283 | select ARM_AMBA | |
284 | select COMMON_CLKDEV | |
ccf50e23 RK |
285 | select GENERIC_CLOCKEVENTS |
286 | select ARCH_WANT_OPTIONAL_GPIOLIB | |
287 | help | |
288 | Support for Broadcom's BCMRing platform. | |
289 | ||
1da177e4 | 290 | config ARCH_CLPS711X |
4af6fee1 | 291 | bool "Cirrus Logic CLPS711x/EP721x-based" |
c750815e | 292 | select CPU_ARM720T |
5cfc8ee0 | 293 | select ARCH_USES_GETTIMEOFFSET |
f999b8bd MM |
294 | help |
295 | Support for Cirrus Logic 711x/721x based boards. | |
1da177e4 | 296 | |
d94f944e AV |
297 | config ARCH_CNS3XXX |
298 | bool "Cavium Networks CNS3XXX family" | |
299 | select CPU_V6 | |
d94f944e AV |
300 | select GENERIC_CLOCKEVENTS |
301 | select ARM_GIC | |
5f32f7a0 | 302 | select PCI_DOMAINS if PCI |
d94f944e AV |
303 | help |
304 | Support for Cavium Networks CNS3XXX platform. | |
305 | ||
788c9700 RK |
306 | config ARCH_GEMINI |
307 | bool "Cortina Systems Gemini" | |
308 | select CPU_FA526 | |
788c9700 | 309 | select ARCH_REQUIRE_GPIOLIB |
5cfc8ee0 | 310 | select ARCH_USES_GETTIMEOFFSET |
788c9700 RK |
311 | help |
312 | Support for the Cortina Systems Gemini family SoCs | |
313 | ||
1da177e4 LT |
314 | config ARCH_EBSA110 |
315 | bool "EBSA-110" | |
c750815e | 316 | select CPU_SA110 |
f7e68bbf | 317 | select ISA |
c5eb2a2b | 318 | select NO_IOPORT |
5cfc8ee0 | 319 | select ARCH_USES_GETTIMEOFFSET |
1da177e4 LT |
320 | help |
321 | This is an evaluation board for the StrongARM processor available | |
f6c8965a | 322 | from Digital. It has limited hardware on-board, including an |
1da177e4 LT |
323 | Ethernet interface, two PCMCIA sockets, two serial ports and a |
324 | parallel port. | |
325 | ||
e7736d47 LB |
326 | config ARCH_EP93XX |
327 | bool "EP93xx-based" | |
c750815e | 328 | select CPU_ARM920T |
e7736d47 LB |
329 | select ARM_AMBA |
330 | select ARM_VIC | |
ae696fd5 | 331 | select COMMON_CLKDEV |
7444a72e | 332 | select ARCH_REQUIRE_GPIOLIB |
eb33575c | 333 | select ARCH_HAS_HOLES_MEMORYMODEL |
5cfc8ee0 | 334 | select ARCH_USES_GETTIMEOFFSET |
e7736d47 LB |
335 | help |
336 | This enables support for the Cirrus EP93xx series of CPUs. | |
337 | ||
1da177e4 LT |
338 | config ARCH_FOOTBRIDGE |
339 | bool "FootBridge" | |
c750815e | 340 | select CPU_SA110 |
1da177e4 | 341 | select FOOTBRIDGE |
5cfc8ee0 | 342 | select ARCH_USES_GETTIMEOFFSET |
f999b8bd MM |
343 | help |
344 | Support for systems based on the DC21285 companion chip | |
345 | ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder. | |
1da177e4 | 346 | |
788c9700 RK |
347 | config ARCH_MXC |
348 | bool "Freescale MXC/iMX-based" | |
788c9700 | 349 | select GENERIC_CLOCKEVENTS |
788c9700 | 350 | select ARCH_REQUIRE_GPIOLIB |
03e09cd8 | 351 | select COMMON_CLKDEV |
788c9700 RK |
352 | help |
353 | Support for Freescale MXC/iMX-based family of processors | |
354 | ||
7bd0f2f5 | 355 | config ARCH_STMP3XXX |
356 | bool "Freescale STMP3xxx" | |
357 | select CPU_ARM926T | |
7bd0f2f5 | 358 | select COMMON_CLKDEV |
359 | select ARCH_REQUIRE_GPIOLIB | |
7bd0f2f5 | 360 | select GENERIC_CLOCKEVENTS |
7bd0f2f5 | 361 | select USB_ARCH_HAS_EHCI |
362 | help | |
363 | Support for systems based on the Freescale 3xxx CPUs. | |
364 | ||
4af6fee1 DS |
365 | config ARCH_NETX |
366 | bool "Hilscher NetX based" | |
c750815e | 367 | select CPU_ARM926T |
4af6fee1 | 368 | select ARM_VIC |
2fcfe6b8 | 369 | select GENERIC_CLOCKEVENTS |
f999b8bd | 370 | help |
4af6fee1 DS |
371 | This enables support for systems based on the Hilscher NetX Soc |
372 | ||
373 | config ARCH_H720X | |
374 | bool "Hynix HMS720x-based" | |
c750815e | 375 | select CPU_ARM720T |
4af6fee1 | 376 | select ISA_DMA_API |
5cfc8ee0 | 377 | select ARCH_USES_GETTIMEOFFSET |
4af6fee1 DS |
378 | help |
379 | This enables support for systems based on the Hynix HMS720x | |
380 | ||
3b938be6 RK |
381 | config ARCH_IOP13XX |
382 | bool "IOP13xx-based" | |
383 | depends on MMU | |
c750815e | 384 | select CPU_XSC3 |
3b938be6 RK |
385 | select PLAT_IOP |
386 | select PCI | |
387 | select ARCH_SUPPORTS_MSI | |
8d5796d2 | 388 | select VMSPLIT_1G |
3b938be6 RK |
389 | help |
390 | Support for Intel's IOP13XX (XScale) family of processors. | |
391 | ||
3f7e5815 LB |
392 | config ARCH_IOP32X |
393 | bool "IOP32x-based" | |
a4f7e763 | 394 | depends on MMU |
c750815e | 395 | select CPU_XSCALE |
7ae1f7ec | 396 | select PLAT_IOP |
f7e68bbf | 397 | select PCI |
bb2b180c | 398 | select ARCH_REQUIRE_GPIOLIB |
f999b8bd | 399 | help |
3f7e5815 LB |
400 | Support for Intel's 80219 and IOP32X (XScale) family of |
401 | processors. | |
402 | ||
403 | config ARCH_IOP33X | |
404 | bool "IOP33x-based" | |
405 | depends on MMU | |
c750815e | 406 | select CPU_XSCALE |
7ae1f7ec | 407 | select PLAT_IOP |
3f7e5815 | 408 | select PCI |
bb2b180c | 409 | select ARCH_REQUIRE_GPIOLIB |
3f7e5815 LB |
410 | help |
411 | Support for Intel's IOP33X (XScale) family of processors. | |
1da177e4 | 412 | |
3b938be6 RK |
413 | config ARCH_IXP23XX |
414 | bool "IXP23XX-based" | |
a4f7e763 | 415 | depends on MMU |
c750815e | 416 | select CPU_XSC3 |
3b938be6 | 417 | select PCI |
5cfc8ee0 | 418 | select ARCH_USES_GETTIMEOFFSET |
f999b8bd | 419 | help |
3b938be6 | 420 | Support for Intel's IXP23xx (XScale) family of processors. |
1da177e4 LT |
421 | |
422 | config ARCH_IXP2000 | |
423 | bool "IXP2400/2800-based" | |
a4f7e763 | 424 | depends on MMU |
c750815e | 425 | select CPU_XSCALE |
f7e68bbf | 426 | select PCI |
5cfc8ee0 | 427 | select ARCH_USES_GETTIMEOFFSET |
f999b8bd MM |
428 | help |
429 | Support for Intel's IXP2400/2800 (XScale) family of processors. | |
1da177e4 | 430 | |
3b938be6 RK |
431 | config ARCH_IXP4XX |
432 | bool "IXP4xx-based" | |
a4f7e763 | 433 | depends on MMU |
c750815e | 434 | select CPU_XSCALE |
8858e9af | 435 | select GENERIC_GPIO |
3b938be6 | 436 | select GENERIC_CLOCKEVENTS |
485bdde7 | 437 | select DMABOUNCE if PCI |
c4713074 | 438 | help |
3b938be6 | 439 | Support for Intel's IXP4XX (XScale) family of processors. |
c4713074 | 440 | |
edabd38e SB |
441 | config ARCH_DOVE |
442 | bool "Marvell Dove" | |
443 | select PCI | |
edabd38e | 444 | select ARCH_REQUIRE_GPIOLIB |
edabd38e SB |
445 | select GENERIC_CLOCKEVENTS |
446 | select PLAT_ORION | |
447 | help | |
448 | Support for the Marvell Dove SoC 88AP510 | |
449 | ||
651c74c7 SB |
450 | config ARCH_KIRKWOOD |
451 | bool "Marvell Kirkwood" | |
c750815e | 452 | select CPU_FEROCEON |
651c74c7 | 453 | select PCI |
a8865655 | 454 | select ARCH_REQUIRE_GPIOLIB |
651c74c7 SB |
455 | select GENERIC_CLOCKEVENTS |
456 | select PLAT_ORION | |
457 | help | |
458 | Support for the following Marvell Kirkwood series SoCs: | |
459 | 88F6180, 88F6192 and 88F6281. | |
460 | ||
777f9beb LB |
461 | config ARCH_LOKI |
462 | bool "Marvell Loki (88RC8480)" | |
c750815e | 463 | select CPU_FEROCEON |
777f9beb LB |
464 | select GENERIC_CLOCKEVENTS |
465 | select PLAT_ORION | |
466 | help | |
467 | Support for the Marvell Loki (88RC8480) SoC. | |
468 | ||
40805949 KW |
469 | config ARCH_LPC32XX |
470 | bool "NXP LPC32XX" | |
471 | select CPU_ARM926T | |
472 | select ARCH_REQUIRE_GPIOLIB | |
473 | select HAVE_IDE | |
474 | select ARM_AMBA | |
475 | select USB_ARCH_HAS_OHCI | |
476 | select COMMON_CLKDEV | |
477 | select GENERIC_TIME | |
478 | select GENERIC_CLOCKEVENTS | |
479 | help | |
480 | Support for the NXP LPC32XX family of processors | |
481 | ||
794d15b2 SS |
482 | config ARCH_MV78XX0 |
483 | bool "Marvell MV78xx0" | |
c750815e | 484 | select CPU_FEROCEON |
794d15b2 | 485 | select PCI |
a8865655 | 486 | select ARCH_REQUIRE_GPIOLIB |
794d15b2 SS |
487 | select GENERIC_CLOCKEVENTS |
488 | select PLAT_ORION | |
489 | help | |
490 | Support for the following Marvell MV78xx0 series SoCs: | |
491 | MV781x0, MV782x0. | |
492 | ||
9dd0b194 | 493 | config ARCH_ORION5X |
585cf175 TP |
494 | bool "Marvell Orion" |
495 | depends on MMU | |
c750815e | 496 | select CPU_FEROCEON |
038ee083 | 497 | select PCI |
a8865655 | 498 | select ARCH_REQUIRE_GPIOLIB |
51cbff1d | 499 | select GENERIC_CLOCKEVENTS |
69b02f6a | 500 | select PLAT_ORION |
585cf175 | 501 | help |
9dd0b194 | 502 | Support for the following Marvell Orion 5x series SoCs: |
d2b2a6bb | 503 | Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182), |
d323ade1 | 504 | Orion-2 (5281), Orion-1-90 (6183). |
585cf175 | 505 | |
788c9700 | 506 | config ARCH_MMP |
2f7e8fae | 507 | bool "Marvell PXA168/910/MMP2" |
788c9700 | 508 | depends on MMU |
788c9700 | 509 | select ARCH_REQUIRE_GPIOLIB |
788c9700 | 510 | select COMMON_CLKDEV |
788c9700 RK |
511 | select GENERIC_CLOCKEVENTS |
512 | select TICK_ONESHOT | |
513 | select PLAT_PXA | |
514 | help | |
2f7e8fae | 515 | Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line. |
788c9700 RK |
516 | |
517 | config ARCH_KS8695 | |
518 | bool "Micrel/Kendin KS8695" | |
519 | select CPU_ARM922T | |
98830bc9 | 520 | select ARCH_REQUIRE_GPIOLIB |
5cfc8ee0 | 521 | select ARCH_USES_GETTIMEOFFSET |
788c9700 RK |
522 | help |
523 | Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based | |
524 | System-on-Chip devices. | |
525 | ||
526 | config ARCH_NS9XXX | |
527 | bool "NetSilicon NS9xxx" | |
528 | select CPU_ARM926T | |
529 | select GENERIC_GPIO | |
788c9700 RK |
530 | select GENERIC_CLOCKEVENTS |
531 | select HAVE_CLK | |
532 | help | |
533 | Say Y here if you intend to run this kernel on a NetSilicon NS9xxx | |
534 | System. | |
535 | ||
536 | <http://www.digi.com/products/microprocessors/index.jsp> | |
537 | ||
538 | config ARCH_W90X900 | |
539 | bool "Nuvoton W90X900 CPU" | |
540 | select CPU_ARM926T | |
c52d3d68 | 541 | select ARCH_REQUIRE_GPIOLIB |
0e4a34bb | 542 | select COMMON_CLKDEV |
58b5369e | 543 | select GENERIC_CLOCKEVENTS |
788c9700 | 544 | help |
a8bc4ead | 545 | Support for Nuvoton (Winbond logic dept.) ARM9 processor, |
546 | At present, the w90x900 has been renamed nuc900, regarding | |
547 | the ARM series product line, you can login the following | |
548 | link address to know more. | |
549 | ||
550 | <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/ | |
551 | ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller> | |
788c9700 | 552 | |
a62e9030 | 553 | config ARCH_NUC93X |
554 | bool "Nuvoton NUC93X CPU" | |
555 | select CPU_ARM926T | |
a62e9030 | 556 | select COMMON_CLKDEV |
557 | help | |
558 | Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a | |
559 | low-power and high performance MPEG-4/JPEG multimedia controller chip. | |
560 | ||
c5f80065 EG |
561 | config ARCH_TEGRA |
562 | bool "NVIDIA Tegra" | |
563 | select GENERIC_TIME | |
564 | select GENERIC_CLOCKEVENTS | |
565 | select GENERIC_GPIO | |
566 | select HAVE_CLK | |
d8611961 | 567 | select COMMON_CLKDEV |
c5f80065 EG |
568 | select ARCH_HAS_BARRIERS if CACHE_L2X0 |
569 | help | |
570 | This enables support for NVIDIA Tegra based systems (Tegra APX, | |
571 | Tegra 6xx and Tegra 2 series). | |
572 | ||
4af6fee1 DS |
573 | config ARCH_PNX4008 |
574 | bool "Philips Nexperia PNX4008 Mobile" | |
c750815e | 575 | select CPU_ARM926T |
6985a5ad | 576 | select COMMON_CLKDEV |
5cfc8ee0 | 577 | select ARCH_USES_GETTIMEOFFSET |
4af6fee1 DS |
578 | help |
579 | This enables support for Philips PNX4008 mobile platform. | |
580 | ||
1da177e4 | 581 | config ARCH_PXA |
2c8086a5 | 582 | bool "PXA2xx/PXA3xx-based" |
a4f7e763 | 583 | depends on MMU |
034d2f5a | 584 | select ARCH_MTD_XIP |
89c52ed4 | 585 | select ARCH_HAS_CPUFREQ |
8c3abc7d | 586 | select COMMON_CLKDEV |
7444a72e | 587 | select ARCH_REQUIRE_GPIOLIB |
981d0f39 | 588 | select GENERIC_CLOCKEVENTS |
a88264c2 | 589 | select TICK_ONESHOT |
bd5ce433 | 590 | select PLAT_PXA |
f999b8bd | 591 | help |
2c8086a5 | 592 | Support for Intel/Marvell's PXA2xx/PXA3xx processor line. |
1da177e4 | 593 | |
788c9700 RK |
594 | config ARCH_MSM |
595 | bool "Qualcomm MSM" | |
4b536b8d | 596 | select HAVE_CLK |
49cbe786 | 597 | select GENERIC_CLOCKEVENTS |
923a081c | 598 | select ARCH_REQUIRE_GPIOLIB |
49cbe786 | 599 | help |
4b53eb4f DW |
600 | Support for Qualcomm MSM/QSD based systems. This runs on the |
601 | apps processor of the MSM/QSD and depends on a shared memory | |
602 | interface to the modem processor which runs the baseband | |
603 | stack and controls some vital subsystems | |
604 | (clock and power control, etc). | |
49cbe786 | 605 | |
c793c1b0 MD |
606 | config ARCH_SHMOBILE |
607 | bool "Renesas SH-Mobile" | |
608 | help | |
609 | Support for Renesas's SH-Mobile ARM platforms | |
610 | ||
1da177e4 LT |
611 | config ARCH_RPC |
612 | bool "RiscPC" | |
613 | select ARCH_ACORN | |
614 | select FIQ | |
615 | select TIMER_ACORN | |
a08b6b79 | 616 | select ARCH_MAY_HAVE_PC_FDC |
341eb781 | 617 | select HAVE_PATA_PLATFORM |
065909b9 | 618 | select ISA_DMA_API |
5ea81769 | 619 | select NO_IOPORT |
07f841b7 | 620 | select ARCH_SPARSEMEM_ENABLE |
5cfc8ee0 | 621 | select ARCH_USES_GETTIMEOFFSET |
1da177e4 LT |
622 | help |
623 | On the Acorn Risc-PC, Linux can support the internal IDE disk and | |
624 | CD-ROM interface, serial and parallel port, and the floppy drive. | |
625 | ||
626 | config ARCH_SA1100 | |
627 | bool "SA1100-based" | |
c750815e | 628 | select CPU_SA1100 |
f7e68bbf | 629 | select ISA |
05944d74 | 630 | select ARCH_SPARSEMEM_ENABLE |
034d2f5a | 631 | select ARCH_MTD_XIP |
89c52ed4 | 632 | select ARCH_HAS_CPUFREQ |
1937f5b9 | 633 | select CPU_FREQ |
3e238be2 | 634 | select GENERIC_CLOCKEVENTS |
9483a578 | 635 | select HAVE_CLK |
3e238be2 | 636 | select TICK_ONESHOT |
7444a72e | 637 | select ARCH_REQUIRE_GPIOLIB |
f999b8bd MM |
638 | help |
639 | Support for StrongARM 11x0 based boards. | |
1da177e4 LT |
640 | |
641 | config ARCH_S3C2410 | |
63b1f51b | 642 | bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450" |
0a938b97 | 643 | select GENERIC_GPIO |
9d56c02a | 644 | select ARCH_HAS_CPUFREQ |
9483a578 | 645 | select HAVE_CLK |
5cfc8ee0 | 646 | select ARCH_USES_GETTIMEOFFSET |
4b623926 | 647 | select HAVE_S3C2410_I2C |
1da177e4 LT |
648 | help |
649 | Samsung S3C2410X CPU based systems, such as the Simtec Electronics | |
650 | BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or | |
f6c8965a | 651 | the Samsung SMDK2410 development board (and derivatives). |
1da177e4 | 652 | |
63b1f51b BD |
653 | Note, the S3C2416 and the S3C2450 are so close that they even share |
654 | the same SoC ID code. This means that there is no seperate machine | |
655 | directory (no arch/arm/mach-s3c2450) as the S3C2416 was first. | |
656 | ||
a08ab637 BD |
657 | config ARCH_S3C64XX |
658 | bool "Samsung S3C64XX" | |
89f1fa08 | 659 | select PLAT_SAMSUNG |
89f0ce72 | 660 | select CPU_V6 |
89f0ce72 | 661 | select ARM_VIC |
a08ab637 | 662 | select HAVE_CLK |
89f0ce72 | 663 | select NO_IOPORT |
5cfc8ee0 | 664 | select ARCH_USES_GETTIMEOFFSET |
89c52ed4 | 665 | select ARCH_HAS_CPUFREQ |
89f0ce72 BD |
666 | select ARCH_REQUIRE_GPIOLIB |
667 | select SAMSUNG_CLKSRC | |
668 | select SAMSUNG_IRQ_VIC_TIMER | |
669 | select SAMSUNG_IRQ_UART | |
670 | select S3C_GPIO_TRACK | |
671 | select S3C_GPIO_PULL_UPDOWN | |
672 | select S3C_GPIO_CFG_S3C24XX | |
673 | select S3C_GPIO_CFG_S3C64XX | |
674 | select S3C_DEV_NAND | |
675 | select USB_ARCH_HAS_OHCI | |
676 | select SAMSUNG_GPIOLIB_4BIT | |
4b623926 | 677 | select HAVE_S3C2410_I2C |
d8653d9f | 678 | select HAVE_S3C2410_WATCHDOG |
a08ab637 BD |
679 | help |
680 | Samsung S3C64XX series based systems | |
681 | ||
c4ffccdd KK |
682 | config ARCH_S5P6440 |
683 | bool "Samsung S5P6440" | |
684 | select CPU_V6 | |
685 | select GENERIC_GPIO | |
686 | select HAVE_CLK | |
d8653d9f | 687 | select HAVE_S3C2410_WATCHDOG |
925c68cd | 688 | select ARCH_USES_GETTIMEOFFSET |
4b623926 | 689 | select HAVE_S3C2410_I2C |
03eb2749 | 690 | select HAVE_S3C_RTC |
c4ffccdd KK |
691 | help |
692 | Samsung S5P6440 CPU based systems | |
693 | ||
550db7f1 KK |
694 | config ARCH_S5P6442 |
695 | bool "Samsung S5P6442" | |
696 | select CPU_V6 | |
697 | select GENERIC_GPIO | |
698 | select HAVE_CLK | |
925c68cd | 699 | select ARCH_USES_GETTIMEOFFSET |
d8653d9f | 700 | select HAVE_S3C2410_WATCHDOG |
550db7f1 KK |
701 | help |
702 | Samsung S5P6442 CPU based systems | |
703 | ||
acc84707 MS |
704 | config ARCH_S5PC100 |
705 | bool "Samsung S5PC100" | |
5a7652f2 BM |
706 | select GENERIC_GPIO |
707 | select HAVE_CLK | |
708 | select CPU_V7 | |
d6d502fa | 709 | select ARM_L1_CACHE_SHIFT_6 |
925c68cd | 710 | select ARCH_USES_GETTIMEOFFSET |
4b623926 | 711 | select HAVE_S3C2410_I2C |
03eb2749 | 712 | select HAVE_S3C_RTC |
d8653d9f | 713 | select HAVE_S3C2410_WATCHDOG |
5a7652f2 | 714 | help |
acc84707 | 715 | Samsung S5PC100 series based systems |
5a7652f2 | 716 | |
170f4e42 KK |
717 | config ARCH_S5PV210 |
718 | bool "Samsung S5PV210/S5PC110" | |
719 | select CPU_V7 | |
720 | select GENERIC_GPIO | |
721 | select HAVE_CLK | |
722 | select ARM_L1_CACHE_SHIFT_6 | |
925c68cd | 723 | select ARCH_USES_GETTIMEOFFSET |
4b623926 | 724 | select HAVE_S3C2410_I2C |
03eb2749 | 725 | select HAVE_S3C_RTC |
d8653d9f | 726 | select HAVE_S3C2410_WATCHDOG |
170f4e42 KK |
727 | help |
728 | Samsung S5PV210/S5PC110 series based systems | |
729 | ||
cc0e72b8 CY |
730 | config ARCH_S5PV310 |
731 | bool "Samsung S5PV310/S5PC210" | |
732 | select CPU_V7 | |
733 | select GENERIC_GPIO | |
734 | select HAVE_CLK | |
735 | select GENERIC_CLOCKEVENTS | |
736 | help | |
737 | Samsung S5PV310 series based systems | |
738 | ||
1da177e4 LT |
739 | config ARCH_SHARK |
740 | bool "Shark" | |
c750815e | 741 | select CPU_SA110 |
f7e68bbf RK |
742 | select ISA |
743 | select ISA_DMA | |
3bca103a | 744 | select ZONE_DMA |
f7e68bbf | 745 | select PCI |
5cfc8ee0 | 746 | select ARCH_USES_GETTIMEOFFSET |
f999b8bd MM |
747 | help |
748 | Support for the StrongARM based Digital DNARD machine, also known | |
749 | as "Shark" (<http://www.shark-linux.de/shark.html>). | |
1da177e4 LT |
750 | |
751 | config ARCH_LH7A40X | |
752 | bool "Sharp LH7A40X" | |
c750815e | 753 | select CPU_ARM922T |
4ba3f7c5 | 754 | select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM |
5cfc8ee0 | 755 | select ARCH_USES_GETTIMEOFFSET |
1da177e4 LT |
756 | help |
757 | Say Y here for systems based on one of the Sharp LH7A40X | |
758 | System on a Chip processors. These CPUs include an ARM922T | |
759 | core with a wide array of integrated devices for | |
760 | hand-held and low-power applications. | |
761 | ||
d98aac75 LW |
762 | config ARCH_U300 |
763 | bool "ST-Ericsson U300 Series" | |
764 | depends on MMU | |
765 | select CPU_ARM926T | |
bc581770 | 766 | select HAVE_TCM |
d98aac75 LW |
767 | select ARM_AMBA |
768 | select ARM_VIC | |
d98aac75 | 769 | select GENERIC_CLOCKEVENTS |
d98aac75 LW |
770 | select COMMON_CLKDEV |
771 | select GENERIC_GPIO | |
772 | help | |
773 | Support for ST-Ericsson U300 series mobile platforms. | |
774 | ||
ccf50e23 RK |
775 | config ARCH_U8500 |
776 | bool "ST-Ericsson U8500 Series" | |
777 | select CPU_V7 | |
778 | select ARM_AMBA | |
ccf50e23 RK |
779 | select GENERIC_CLOCKEVENTS |
780 | select COMMON_CLKDEV | |
94bdc0e2 | 781 | select ARCH_REQUIRE_GPIOLIB |
ccf50e23 RK |
782 | help |
783 | Support for ST-Ericsson's Ux500 architecture | |
784 | ||
785 | config ARCH_NOMADIK | |
786 | bool "STMicroelectronics Nomadik" | |
787 | select ARM_AMBA | |
788 | select ARM_VIC | |
789 | select CPU_ARM926T | |
ccf50e23 | 790 | select COMMON_CLKDEV |
ccf50e23 | 791 | select GENERIC_CLOCKEVENTS |
ccf50e23 RK |
792 | select ARCH_REQUIRE_GPIOLIB |
793 | help | |
794 | Support for the Nomadik platform by ST-Ericsson | |
795 | ||
7c6337e2 KH |
796 | config ARCH_DAVINCI |
797 | bool "TI DaVinci" | |
7c6337e2 | 798 | select GENERIC_CLOCKEVENTS |
dce1115b | 799 | select ARCH_REQUIRE_GPIOLIB |
3bca103a | 800 | select ZONE_DMA |
9232fcc9 | 801 | select HAVE_IDE |
c5b736d0 | 802 | select COMMON_CLKDEV |
20e9969b | 803 | select GENERIC_ALLOCATOR |
ae88e05a | 804 | select ARCH_HAS_HOLES_MEMORYMODEL |
7c6337e2 KH |
805 | help |
806 | Support for TI's DaVinci platform. | |
807 | ||
3b938be6 RK |
808 | config ARCH_OMAP |
809 | bool "TI OMAP" | |
9483a578 | 810 | select HAVE_CLK |
7444a72e | 811 | select ARCH_REQUIRE_GPIOLIB |
89c52ed4 | 812 | select ARCH_HAS_CPUFREQ |
06cad098 | 813 | select GENERIC_CLOCKEVENTS |
9af915da | 814 | select ARCH_HAS_HOLES_MEMORYMODEL |
3b938be6 RK |
815 | help |
816 | Support for TI's OMAP platform (OMAP1 and OMAP2). | |
817 | ||
cee37e50 | 818 | config PLAT_SPEAR |
819 | bool "ST SPEAr" | |
820 | select ARM_AMBA | |
821 | select ARCH_REQUIRE_GPIOLIB | |
822 | select COMMON_CLKDEV | |
823 | select GENERIC_CLOCKEVENTS | |
cee37e50 | 824 | select HAVE_CLK |
825 | help | |
826 | Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx). | |
827 | ||
1da177e4 LT |
828 | endchoice |
829 | ||
ccf50e23 RK |
830 | # |
831 | # This is sorted alphabetically by mach-* pathname. However, plat-* | |
832 | # Kconfigs may be included either alphabetically (according to the | |
833 | # plat- suffix) or along side the corresponding mach-* source. | |
834 | # | |
95b8f20f RK |
835 | source "arch/arm/mach-aaec2000/Kconfig" |
836 | ||
837 | source "arch/arm/mach-at91/Kconfig" | |
838 | ||
839 | source "arch/arm/mach-bcmring/Kconfig" | |
840 | ||
1da177e4 LT |
841 | source "arch/arm/mach-clps711x/Kconfig" |
842 | ||
d94f944e AV |
843 | source "arch/arm/mach-cns3xxx/Kconfig" |
844 | ||
95b8f20f RK |
845 | source "arch/arm/mach-davinci/Kconfig" |
846 | ||
847 | source "arch/arm/mach-dove/Kconfig" | |
848 | ||
e7736d47 LB |
849 | source "arch/arm/mach-ep93xx/Kconfig" |
850 | ||
1da177e4 LT |
851 | source "arch/arm/mach-footbridge/Kconfig" |
852 | ||
59d3a193 PZ |
853 | source "arch/arm/mach-gemini/Kconfig" |
854 | ||
95b8f20f RK |
855 | source "arch/arm/mach-h720x/Kconfig" |
856 | ||
1da177e4 LT |
857 | source "arch/arm/mach-integrator/Kconfig" |
858 | ||
3f7e5815 LB |
859 | source "arch/arm/mach-iop32x/Kconfig" |
860 | ||
861 | source "arch/arm/mach-iop33x/Kconfig" | |
1da177e4 | 862 | |
285f5fa7 DW |
863 | source "arch/arm/mach-iop13xx/Kconfig" |
864 | ||
1da177e4 LT |
865 | source "arch/arm/mach-ixp4xx/Kconfig" |
866 | ||
867 | source "arch/arm/mach-ixp2000/Kconfig" | |
868 | ||
c4713074 LB |
869 | source "arch/arm/mach-ixp23xx/Kconfig" |
870 | ||
95b8f20f RK |
871 | source "arch/arm/mach-kirkwood/Kconfig" |
872 | ||
873 | source "arch/arm/mach-ks8695/Kconfig" | |
874 | ||
875 | source "arch/arm/mach-lh7a40x/Kconfig" | |
876 | ||
777f9beb LB |
877 | source "arch/arm/mach-loki/Kconfig" |
878 | ||
40805949 KW |
879 | source "arch/arm/mach-lpc32xx/Kconfig" |
880 | ||
95b8f20f RK |
881 | source "arch/arm/mach-msm/Kconfig" |
882 | ||
794d15b2 SS |
883 | source "arch/arm/mach-mv78xx0/Kconfig" |
884 | ||
95b8f20f | 885 | source "arch/arm/plat-mxc/Kconfig" |
1da177e4 | 886 | |
95b8f20f | 887 | source "arch/arm/mach-netx/Kconfig" |
49cbe786 | 888 | |
95b8f20f RK |
889 | source "arch/arm/mach-nomadik/Kconfig" |
890 | source "arch/arm/plat-nomadik/Kconfig" | |
891 | ||
892 | source "arch/arm/mach-ns9xxx/Kconfig" | |
1da177e4 | 893 | |
186f93ea | 894 | source "arch/arm/mach-nuc93x/Kconfig" |
1da177e4 | 895 | |
d48af15e TL |
896 | source "arch/arm/plat-omap/Kconfig" |
897 | ||
898 | source "arch/arm/mach-omap1/Kconfig" | |
1da177e4 | 899 | |
1dbae815 TL |
900 | source "arch/arm/mach-omap2/Kconfig" |
901 | ||
9dd0b194 | 902 | source "arch/arm/mach-orion5x/Kconfig" |
585cf175 | 903 | |
95b8f20f RK |
904 | source "arch/arm/mach-pxa/Kconfig" |
905 | source "arch/arm/plat-pxa/Kconfig" | |
585cf175 | 906 | |
95b8f20f RK |
907 | source "arch/arm/mach-mmp/Kconfig" |
908 | ||
909 | source "arch/arm/mach-realview/Kconfig" | |
910 | ||
911 | source "arch/arm/mach-sa1100/Kconfig" | |
edabd38e | 912 | |
cf383678 | 913 | source "arch/arm/plat-samsung/Kconfig" |
a21765a7 | 914 | source "arch/arm/plat-s3c24xx/Kconfig" |
c4ffccdd | 915 | source "arch/arm/plat-s5p/Kconfig" |
a21765a7 | 916 | |
cee37e50 | 917 | source "arch/arm/plat-spear/Kconfig" |
a21765a7 BD |
918 | |
919 | if ARCH_S3C2410 | |
920 | source "arch/arm/mach-s3c2400/Kconfig" | |
1da177e4 | 921 | source "arch/arm/mach-s3c2410/Kconfig" |
a21765a7 | 922 | source "arch/arm/mach-s3c2412/Kconfig" |
f1290a49 | 923 | source "arch/arm/mach-s3c2416/Kconfig" |
a21765a7 | 924 | source "arch/arm/mach-s3c2440/Kconfig" |
e4d06e39 | 925 | source "arch/arm/mach-s3c2443/Kconfig" |
a21765a7 | 926 | endif |
1da177e4 | 927 | |
a08ab637 | 928 | if ARCH_S3C64XX |
431107ea | 929 | source "arch/arm/mach-s3c64xx/Kconfig" |
a08ab637 BD |
930 | endif |
931 | ||
c4ffccdd KK |
932 | source "arch/arm/mach-s5p6440/Kconfig" |
933 | ||
550db7f1 | 934 | source "arch/arm/mach-s5p6442/Kconfig" |
7bd0f2f5 | 935 | |
5a7652f2 | 936 | source "arch/arm/mach-s5pc100/Kconfig" |
5a7652f2 | 937 | |
170f4e42 KK |
938 | source "arch/arm/mach-s5pv210/Kconfig" |
939 | ||
cc0e72b8 CY |
940 | source "arch/arm/mach-s5pv310/Kconfig" |
941 | ||
882d01f9 | 942 | source "arch/arm/mach-shmobile/Kconfig" |
52c543f9 | 943 | |
882d01f9 | 944 | source "arch/arm/plat-stmp3xxx/Kconfig" |
9e73c84c | 945 | |
c5f80065 EG |
946 | source "arch/arm/mach-tegra/Kconfig" |
947 | ||
95b8f20f | 948 | source "arch/arm/mach-u300/Kconfig" |
1da177e4 | 949 | |
95b8f20f | 950 | source "arch/arm/mach-ux500/Kconfig" |
1da177e4 LT |
951 | |
952 | source "arch/arm/mach-versatile/Kconfig" | |
953 | ||
ceade897 RK |
954 | source "arch/arm/mach-vexpress/Kconfig" |
955 | ||
7ec80ddf | 956 | source "arch/arm/mach-w90x900/Kconfig" |
957 | ||
1da177e4 LT |
958 | # Definitions to make life easier |
959 | config ARCH_ACORN | |
960 | bool | |
961 | ||
7ae1f7ec LB |
962 | config PLAT_IOP |
963 | bool | |
469d3044 | 964 | select GENERIC_CLOCKEVENTS |
7ae1f7ec | 965 | |
69b02f6a LB |
966 | config PLAT_ORION |
967 | bool | |
968 | ||
bd5ce433 EM |
969 | config PLAT_PXA |
970 | bool | |
971 | ||
f4b8b319 RK |
972 | config PLAT_VERSATILE |
973 | bool | |
974 | ||
e3887714 RK |
975 | config ARM_TIMER_SP804 |
976 | bool | |
977 | ||
1da177e4 LT |
978 | source arch/arm/mm/Kconfig |
979 | ||
afe4b25e LB |
980 | config IWMMXT |
981 | bool "Enable iWMMXt support" | |
40305a58 EM |
982 | depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK |
983 | default y if PXA27x || PXA3xx || ARCH_MMP | |
afe4b25e LB |
984 | help |
985 | Enable support for iWMMXt context switching at run time if | |
986 | running on a CPU that supports it. | |
987 | ||
1da177e4 LT |
988 | # bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER |
989 | config XSCALE_PMU | |
990 | bool | |
991 | depends on CPU_XSCALE && !XSCALE_PMU_TIMER | |
992 | default y | |
993 | ||
0f4f0672 | 994 | config CPU_HAS_PMU |
8954bb0d WD |
995 | depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \ |
996 | (!ARCH_OMAP3 || OMAP3_EMU) | |
0f4f0672 JI |
997 | default y |
998 | bool | |
999 | ||
3b93e7b0 HC |
1000 | if !MMU |
1001 | source "arch/arm/Kconfig-nommu" | |
1002 | endif | |
1003 | ||
9cba3ccc CM |
1004 | config ARM_ERRATA_411920 |
1005 | bool "ARM errata: Invalidation of the Instruction Cache operation can fail" | |
1006 | depends on CPU_V6 && !SMP | |
1007 | help | |
1008 | Invalidation of the Instruction Cache operation can | |
1009 | fail. This erratum is present in 1136 (before r1p4), 1156 and 1176. | |
1010 | It does not affect the MPCore. This option enables the ARM Ltd. | |
1011 | recommended workaround. | |
1012 | ||
7ce236fc CM |
1013 | config ARM_ERRATA_430973 |
1014 | bool "ARM errata: Stale prediction on replaced interworking branch" | |
1015 | depends on CPU_V7 | |
1016 | help | |
1017 | This option enables the workaround for the 430973 Cortex-A8 | |
1018 | (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb | |
1019 | interworking branch is replaced with another code sequence at the | |
1020 | same virtual address, whether due to self-modifying code or virtual | |
1021 | to physical address re-mapping, Cortex-A8 does not recover from the | |
1022 | stale interworking branch prediction. This results in Cortex-A8 | |
1023 | executing the new code sequence in the incorrect ARM or Thumb state. | |
1024 | The workaround enables the BTB/BTAC operations by setting ACTLR.IBE | |
1025 | and also flushes the branch target cache at every context switch. | |
1026 | Note that setting specific bits in the ACTLR register may not be | |
1027 | available in non-secure mode. | |
1028 | ||
855c551f CM |
1029 | config ARM_ERRATA_458693 |
1030 | bool "ARM errata: Processor deadlock when a false hazard is created" | |
1031 | depends on CPU_V7 | |
1032 | help | |
1033 | This option enables the workaround for the 458693 Cortex-A8 (r2p0) | |
1034 | erratum. For very specific sequences of memory operations, it is | |
1035 | possible for a hazard condition intended for a cache line to instead | |
1036 | be incorrectly associated with a different cache line. This false | |
1037 | hazard might then cause a processor deadlock. The workaround enables | |
1038 | the L1 caching of the NEON accesses and disables the PLD instruction | |
1039 | in the ACTLR register. Note that setting specific bits in the ACTLR | |
1040 | register may not be available in non-secure mode. | |
1041 | ||
0516e464 CM |
1042 | config ARM_ERRATA_460075 |
1043 | bool "ARM errata: Data written to the L2 cache can be overwritten with stale data" | |
1044 | depends on CPU_V7 | |
1045 | help | |
1046 | This option enables the workaround for the 460075 Cortex-A8 (r2p0) | |
1047 | erratum. Any asynchronous access to the L2 cache may encounter a | |
1048 | situation in which recent store transactions to the L2 cache are lost | |
1049 | and overwritten with stale memory contents from external memory. The | |
1050 | workaround disables the write-allocate mode for the L2 cache via the | |
1051 | ACTLR register. Note that setting specific bits in the ACTLR register | |
1052 | may not be available in non-secure mode. | |
1053 | ||
9f05027c WD |
1054 | config ARM_ERRATA_742230 |
1055 | bool "ARM errata: DMB operation may be faulty" | |
1056 | depends on CPU_V7 && SMP | |
1057 | help | |
1058 | This option enables the workaround for the 742230 Cortex-A9 | |
1059 | (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction | |
1060 | between two write operations may not ensure the correct visibility | |
1061 | ordering of the two writes. This workaround sets a specific bit in | |
1062 | the diagnostic register of the Cortex-A9 which causes the DMB | |
1063 | instruction to behave as a DSB, ensuring the correct behaviour of | |
1064 | the two writes. | |
1065 | ||
a672e99b WD |
1066 | config ARM_ERRATA_742231 |
1067 | bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption" | |
1068 | depends on CPU_V7 && SMP | |
1069 | help | |
1070 | This option enables the workaround for the 742231 Cortex-A9 | |
1071 | (r2p0..r2p2) erratum. Under certain conditions, specific to the | |
1072 | Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode, | |
1073 | accessing some data located in the same cache line, may get corrupted | |
1074 | data due to bad handling of the address hazard when the line gets | |
1075 | replaced from one of the CPUs at the same time as another CPU is | |
1076 | accessing it. This workaround sets specific bits in the diagnostic | |
1077 | register of the Cortex-A9 which reduces the linefill issuing | |
1078 | capabilities of the processor. | |
1079 | ||
9e65582a SS |
1080 | config PL310_ERRATA_588369 |
1081 | bool "Clean & Invalidate maintenance operations do not invalidate clean lines" | |
1082 | depends on CACHE_L2X0 && ARCH_OMAP4 | |
1083 | help | |
1084 | The PL310 L2 cache controller implements three types of Clean & | |
1085 | Invalidate maintenance operations: by Physical Address | |
1086 | (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC). | |
1087 | They are architecturally defined to behave as the execution of a | |
1088 | clean operation followed immediately by an invalidate operation, | |
1089 | both performing to the same memory location. This functionality | |
1090 | is not correctly implemented in PL310 as clean lines are not | |
1091 | invalidated as a result of these operations. Note that this errata | |
1092 | uses Texas Instrument's secure monitor api. | |
cdf357f1 WD |
1093 | |
1094 | config ARM_ERRATA_720789 | |
1095 | bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID" | |
1096 | depends on CPU_V7 && SMP | |
1097 | help | |
1098 | This option enables the workaround for the 720789 Cortex-A9 (prior to | |
1099 | r2p0) erratum. A faulty ASID can be sent to the other CPUs for the | |
1100 | broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS. | |
1101 | As a consequence of this erratum, some TLB entries which should be | |
1102 | invalidated are not, resulting in an incoherency in the system page | |
1103 | tables. The workaround changes the TLB flushing routines to invalidate | |
1104 | entries regardless of the ASID. | |
1da177e4 LT |
1105 | endmenu |
1106 | ||
1107 | source "arch/arm/common/Kconfig" | |
1108 | ||
1da177e4 LT |
1109 | menu "Bus support" |
1110 | ||
1111 | config ARM_AMBA | |
1112 | bool | |
1113 | ||
1114 | config ISA | |
1115 | bool | |
1da177e4 LT |
1116 | help |
1117 | Find out whether you have ISA slots on your motherboard. ISA is the | |
1118 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
1119 | inside your box. Other bus systems are PCI, EISA, MicroChannel | |
1120 | (MCA) or VESA. ISA is an older system, now being displaced by PCI; | |
1121 | newer boards don't support it. If you have ISA, say Y, otherwise N. | |
1122 | ||
065909b9 | 1123 | # Select ISA DMA controller support |
1da177e4 LT |
1124 | config ISA_DMA |
1125 | bool | |
065909b9 | 1126 | select ISA_DMA_API |
1da177e4 | 1127 | |
065909b9 | 1128 | # Select ISA DMA interface |
5cae841b AV |
1129 | config ISA_DMA_API |
1130 | bool | |
5cae841b | 1131 | |
1da177e4 | 1132 | config PCI |
5f32f7a0 | 1133 | bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE || ARCH_CNS3XXX |
1da177e4 LT |
1134 | help |
1135 | Find out whether you have a PCI motherboard. PCI is the name of a | |
1136 | bus system, i.e. the way the CPU talks to the other stuff inside | |
1137 | your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or | |
1138 | VESA. If you have PCI, say Y, otherwise N. | |
1139 | ||
52882173 AV |
1140 | config PCI_DOMAINS |
1141 | bool | |
1142 | depends on PCI | |
1143 | ||
36e23590 MW |
1144 | config PCI_SYSCALL |
1145 | def_bool PCI | |
1146 | ||
1da177e4 LT |
1147 | # Select the host bridge type |
1148 | config PCI_HOST_VIA82C505 | |
1149 | bool | |
1150 | depends on PCI && ARCH_SHARK | |
1151 | default y | |
1152 | ||
a0113a99 MR |
1153 | config PCI_HOST_ITE8152 |
1154 | bool | |
1155 | depends on PCI && MACH_ARMCORE | |
1156 | default y | |
1157 | select DMABOUNCE | |
1158 | ||
1da177e4 LT |
1159 | source "drivers/pci/Kconfig" |
1160 | ||
1161 | source "drivers/pcmcia/Kconfig" | |
1162 | ||
1163 | endmenu | |
1164 | ||
1165 | menu "Kernel Features" | |
1166 | ||
0567a0c0 KH |
1167 | source "kernel/time/Kconfig" |
1168 | ||
1da177e4 LT |
1169 | config SMP |
1170 | bool "Symmetric Multi-Processing (EXPERIMENTAL)" | |
42578c82 | 1171 | depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\ |
59ac59f6 | 1172 | MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 ||\ |
0b019a41 | 1173 | ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4) |
bc28248e | 1174 | depends on GENERIC_CLOCKEVENTS |
f6dd9fa5 | 1175 | select USE_GENERIC_SMP_HELPERS |
0b019a41 RK |
1176 | select HAVE_ARM_SCU if ARCH_REALVIEW || ARCH_OMAP4 || ARCH_S5PV310 ||\ |
1177 | ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 | |
1da177e4 LT |
1178 | help |
1179 | This enables support for systems with more than one CPU. If you have | |
1180 | a system with only one CPU, like most personal computers, say N. If | |
1181 | you have a system with more than one CPU, say Y. | |
1182 | ||
1183 | If you say N here, the kernel will run on single and multiprocessor | |
1184 | machines, but will use only one CPU of a multiprocessor machine. If | |
1185 | you say Y here, the kernel will run on many, but not all, single | |
1186 | processor machines. On a single processor machine, the kernel will | |
1187 | run faster if you say N here. | |
1188 | ||
03502faa | 1189 | See also <file:Documentation/i386/IO-APIC.txt>, |
1da177e4 LT |
1190 | <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at |
1191 | <http://www.linuxdoc.org/docs.html#howto>. | |
1192 | ||
1193 | If you don't know what to do here, say N. | |
1194 | ||
a8cbcd92 RK |
1195 | config HAVE_ARM_SCU |
1196 | bool | |
1197 | depends on SMP | |
1198 | help | |
1199 | This option enables support for the ARM system coherency unit | |
1200 | ||
f32f4ce2 RK |
1201 | config HAVE_ARM_TWD |
1202 | bool | |
1203 | depends on SMP | |
1204 | help | |
1205 | This options enables support for the ARM timer and watchdog unit | |
1206 | ||
8d5796d2 LB |
1207 | choice |
1208 | prompt "Memory split" | |
1209 | default VMSPLIT_3G | |
1210 | help | |
1211 | Select the desired split between kernel and user memory. | |
1212 | ||
1213 | If you are not absolutely sure what you are doing, leave this | |
1214 | option alone! | |
1215 | ||
1216 | config VMSPLIT_3G | |
1217 | bool "3G/1G user/kernel split" | |
1218 | config VMSPLIT_2G | |
1219 | bool "2G/2G user/kernel split" | |
1220 | config VMSPLIT_1G | |
1221 | bool "1G/3G user/kernel split" | |
1222 | endchoice | |
1223 | ||
1224 | config PAGE_OFFSET | |
1225 | hex | |
1226 | default 0x40000000 if VMSPLIT_1G | |
1227 | default 0x80000000 if VMSPLIT_2G | |
1228 | default 0xC0000000 | |
1229 | ||
1da177e4 LT |
1230 | config NR_CPUS |
1231 | int "Maximum number of CPUs (2-32)" | |
1232 | range 2 32 | |
1233 | depends on SMP | |
1234 | default "4" | |
1235 | ||
a054a811 RK |
1236 | config HOTPLUG_CPU |
1237 | bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" | |
1238 | depends on SMP && HOTPLUG && EXPERIMENTAL | |
1239 | help | |
1240 | Say Y here to experiment with turning CPUs off and on. CPUs | |
1241 | can be controlled through /sys/devices/system/cpu. | |
1242 | ||
37ee16ae RK |
1243 | config LOCAL_TIMERS |
1244 | bool "Use local timer interrupts" | |
42578c82 | 1245 | depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \ |
bde28b84 | 1246 | REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \ |
0b019a41 | 1247 | ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4) |
37ee16ae | 1248 | default y |
0b019a41 RK |
1249 | select HAVE_ARM_TWD if ARCH_REALVIEW || ARCH_OMAP4 || ARCH_S5PV310 || \ |
1250 | ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS | |
37ee16ae RK |
1251 | help |
1252 | Enable support for local timers on SMP platforms, rather then the | |
1253 | legacy IPI broadcast method. Local timers allows the system | |
1254 | accounting to be spread across the timer interval, preventing a | |
1255 | "thundering herd" at every timer tick. | |
1256 | ||
d45a398f | 1257 | source kernel/Kconfig.preempt |
1da177e4 | 1258 | |
f8065813 RK |
1259 | config HZ |
1260 | int | |
2192482e RK |
1261 | default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || \ |
1262 | ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310 | |
bfe65704 | 1263 | default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER |
5248c657 | 1264 | default AT91_TIMER_HZ if ARCH_AT91 |
5da3e714 | 1265 | default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE |
f8065813 RK |
1266 | default 100 |
1267 | ||
16c79651 CM |
1268 | config THUMB2_KERNEL |
1269 | bool "Compile the kernel in Thumb-2 mode" | |
1270 | depends on CPU_V7 && EXPERIMENTAL | |
1271 | select AEABI | |
1272 | select ARM_ASM_UNIFIED | |
1273 | help | |
1274 | By enabling this option, the kernel will be compiled in | |
1275 | Thumb-2 mode. A compiler/assembler that understand the unified | |
1276 | ARM-Thumb syntax is needed. | |
1277 | ||
1278 | If unsure, say N. | |
1279 | ||
0becb088 CM |
1280 | config ARM_ASM_UNIFIED |
1281 | bool | |
1282 | ||
704bdda0 NP |
1283 | config AEABI |
1284 | bool "Use the ARM EABI to compile the kernel" | |
1285 | help | |
1286 | This option allows for the kernel to be compiled using the latest | |
1287 | ARM ABI (aka EABI). This is only useful if you are using a user | |
1288 | space environment that is also compiled with EABI. | |
1289 | ||
1290 | Since there are major incompatibilities between the legacy ABI and | |
1291 | EABI, especially with regard to structure member alignment, this | |
1292 | option also changes the kernel syscall calling convention to | |
1293 | disambiguate both ABIs and allow for backward compatibility support | |
1294 | (selected with CONFIG_OABI_COMPAT). | |
1295 | ||
1296 | To use this you need GCC version 4.0.0 or later. | |
1297 | ||
6c90c872 | 1298 | config OABI_COMPAT |
a73a3ff1 | 1299 | bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)" |
61c484d4 | 1300 | depends on AEABI && EXPERIMENTAL |
6c90c872 NP |
1301 | default y |
1302 | help | |
1303 | This option preserves the old syscall interface along with the | |
1304 | new (ARM EABI) one. It also provides a compatibility layer to | |
1305 | intercept syscalls that have structure arguments which layout | |
1306 | in memory differs between the legacy ABI and the new ARM EABI | |
1307 | (only for non "thumb" binaries). This option adds a tiny | |
1308 | overhead to all syscalls and produces a slightly larger kernel. | |
1309 | If you know you'll be using only pure EABI user space then you | |
1310 | can say N here. If this option is not selected and you attempt | |
1311 | to execute a legacy ABI binary then the result will be | |
1312 | UNPREDICTABLE (in fact it can be predicted that it won't work | |
1313 | at all). If in doubt say Y. | |
1314 | ||
eb33575c | 1315 | config ARCH_HAS_HOLES_MEMORYMODEL |
e80d6a24 | 1316 | bool |
e80d6a24 | 1317 | |
05944d74 RK |
1318 | config ARCH_SPARSEMEM_ENABLE |
1319 | bool | |
1320 | ||
07a2f737 RK |
1321 | config ARCH_SPARSEMEM_DEFAULT |
1322 | def_bool ARCH_SPARSEMEM_ENABLE | |
1323 | ||
05944d74 | 1324 | config ARCH_SELECT_MEMORY_MODEL |
be370302 | 1325 | def_bool ARCH_SPARSEMEM_ENABLE |
c80d79d7 | 1326 | |
053a96ca NP |
1327 | config HIGHMEM |
1328 | bool "High Memory Support (EXPERIMENTAL)" | |
1329 | depends on MMU && EXPERIMENTAL | |
1330 | help | |
1331 | The address space of ARM processors is only 4 Gigabytes large | |
1332 | and it has to accommodate user address space, kernel address | |
1333 | space as well as some memory mapped IO. That means that, if you | |
1334 | have a large amount of physical memory and/or IO, not all of the | |
1335 | memory can be "permanently mapped" by the kernel. The physical | |
1336 | memory that is not permanently mapped is called "high memory". | |
1337 | ||
1338 | Depending on the selected kernel/user memory split, minimum | |
1339 | vmalloc space and actual amount of RAM, you may not need this | |
1340 | option which should result in a slightly faster kernel. | |
1341 | ||
1342 | If unsure, say n. | |
1343 | ||
65cec8e3 RK |
1344 | config HIGHPTE |
1345 | bool "Allocate 2nd-level pagetables from highmem" | |
1346 | depends on HIGHMEM | |
1347 | depends on !OUTER_CACHE | |
1348 | ||
1b8873a0 JI |
1349 | config HW_PERF_EVENTS |
1350 | bool "Enable hardware performance counter support for perf events" | |
fe166148 | 1351 | depends on PERF_EVENTS && CPU_HAS_PMU |
1b8873a0 JI |
1352 | default y |
1353 | help | |
1354 | Enable hardware performance counter support for perf events. If | |
1355 | disabled, perf events will use software events only. | |
1356 | ||
354e6f72 | 1357 | config SPARSE_IRQ |
c1ba6ba3 | 1358 | def_bool n |
354e6f72 | 1359 | help |
1360 | This enables support for sparse irqs. This is useful in general | |
1361 | as most CPUs have a fairly sparse array of IRQ vectors, which | |
1362 | the irq_desc then maps directly on to. Systems with a high | |
1363 | number of off-chip IRQs will want to treat this as | |
1364 | experimental until they have been independently verified. | |
1365 | ||
3f22ab27 DH |
1366 | source "mm/Kconfig" |
1367 | ||
c1b2d970 MD |
1368 | config FORCE_MAX_ZONEORDER |
1369 | int "Maximum zone order" if ARCH_SHMOBILE | |
1370 | range 11 64 if ARCH_SHMOBILE | |
1371 | default "9" if SA1111 | |
1372 | default "11" | |
1373 | help | |
1374 | The kernel memory allocator divides physically contiguous memory | |
1375 | blocks into "zones", where each zone is a power of two number of | |
1376 | pages. This option selects the largest power of two that the kernel | |
1377 | keeps in the memory allocator. If you need to allocate very large | |
1378 | blocks of physically contiguous memory, then you may need to | |
1379 | increase this value. | |
1380 | ||
1381 | This config option is actually maximum order plus one. For example, | |
1382 | a value of 11 means that the largest free memory block is 2^10 pages. | |
1383 | ||
1da177e4 LT |
1384 | config LEDS |
1385 | bool "Timer and CPU usage LEDs" | |
e055d5bf | 1386 | depends on ARCH_CDB89712 || ARCH_EBSA110 || \ |
8c8fdbc9 | 1387 | ARCH_EBSA285 || ARCH_INTEGRATOR || \ |
1da177e4 LT |
1388 | ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \ |
1389 | ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \ | |
73a59c1c | 1390 | ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \ |
25329671 | 1391 | ARCH_AT91 || ARCH_DAVINCI || \ |
ff3042fb | 1392 | ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW |
1da177e4 LT |
1393 | help |
1394 | If you say Y here, the LEDs on your machine will be used | |
1395 | to provide useful information about your current system status. | |
1396 | ||
1397 | If you are compiling a kernel for a NetWinder or EBSA-285, you will | |
1398 | be able to select which LEDs are active using the options below. If | |
1399 | you are compiling a kernel for the EBSA-110 or the LART however, the | |
1400 | red LED will simply flash regularly to indicate that the system is | |
1401 | still functional. It is safe to say Y here if you have a CATS | |
1402 | system, but the driver will do nothing. | |
1403 | ||
1404 | config LEDS_TIMER | |
1405 | bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \ | |
eebdf7d7 DB |
1406 | OMAP_OSK_MISTRAL || MACH_OMAP_H2 \ |
1407 | || MACH_OMAP_PERSEUS2 | |
1da177e4 | 1408 | depends on LEDS |
0567a0c0 | 1409 | depends on !GENERIC_CLOCKEVENTS |
1da177e4 LT |
1410 | default y if ARCH_EBSA110 |
1411 | help | |
1412 | If you say Y here, one of the system LEDs (the green one on the | |
1413 | NetWinder, the amber one on the EBSA285, or the red one on the LART) | |
1414 | will flash regularly to indicate that the system is still | |
1415 | operational. This is mainly useful to kernel hackers who are | |
1416 | debugging unstable kernels. | |
1417 | ||
1418 | The LART uses the same LED for both Timer LED and CPU usage LED | |
1419 | functions. You may choose to use both, but the Timer LED function | |
1420 | will overrule the CPU usage LED. | |
1421 | ||
1422 | config LEDS_CPU | |
1423 | bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \ | |
eebdf7d7 DB |
1424 | !ARCH_OMAP) \ |
1425 | || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \ | |
1426 | || MACH_OMAP_PERSEUS2 | |
1da177e4 LT |
1427 | depends on LEDS |
1428 | help | |
1429 | If you say Y here, the red LED will be used to give a good real | |
1430 | time indication of CPU usage, by lighting whenever the idle task | |
1431 | is not currently executing. | |
1432 | ||
1433 | The LART uses the same LED for both Timer LED and CPU usage LED | |
1434 | functions. You may choose to use both, but the Timer LED function | |
1435 | will overrule the CPU usage LED. | |
1436 | ||
1437 | config ALIGNMENT_TRAP | |
1438 | bool | |
f12d0d7c | 1439 | depends on CPU_CP15_MMU |
1da177e4 | 1440 | default y if !ARCH_EBSA110 |
e119bfff | 1441 | select HAVE_PROC_CPU if PROC_FS |
1da177e4 | 1442 | help |
84eb8d06 | 1443 | ARM processors cannot fetch/store information which is not |
1da177e4 LT |
1444 | naturally aligned on the bus, i.e., a 4 byte fetch must start at an |
1445 | address divisible by 4. On 32-bit ARM processors, these non-aligned | |
1446 | fetch/store instructions will be emulated in software if you say | |
1447 | here, which has a severe performance impact. This is necessary for | |
1448 | correct operation of some network protocols. With an IP-only | |
1449 | configuration it is safe to say N, otherwise say Y. | |
1450 | ||
39ec58f3 LB |
1451 | config UACCESS_WITH_MEMCPY |
1452 | bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)" | |
1453 | depends on MMU && EXPERIMENTAL | |
1454 | default y if CPU_FEROCEON | |
1455 | help | |
1456 | Implement faster copy_to_user and clear_user methods for CPU | |
1457 | cores where a 8-word STM instruction give significantly higher | |
1458 | memory write throughput than a sequence of individual 32bit stores. | |
1459 | ||
1460 | A possible side effect is a slight increase in scheduling latency | |
1461 | between threads sharing the same address space if they invoke | |
1462 | such copy operations with large buffers. | |
1463 | ||
1464 | However, if the CPU data cache is using a write-allocate mode, | |
1465 | this option is unlikely to provide any performance gain. | |
1466 | ||
c743f380 NP |
1467 | config CC_STACKPROTECTOR |
1468 | bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)" | |
1469 | help | |
1470 | This option turns on the -fstack-protector GCC feature. This | |
1471 | feature puts, at the beginning of functions, a canary value on | |
1472 | the stack just before the return address, and validates | |
1473 | the value just before actually returning. Stack based buffer | |
1474 | overflows (that need to overwrite this return address) now also | |
1475 | overwrite the canary, which gets detected and the attack is then | |
1476 | neutralized via a kernel panic. | |
1477 | This feature requires gcc version 4.2 or above. | |
1478 | ||
73a65b3f UKK |
1479 | config DEPRECATED_PARAM_STRUCT |
1480 | bool "Provide old way to pass kernel parameters" | |
1481 | help | |
1482 | This was deprecated in 2001 and announced to live on for 5 years. | |
1483 | Some old boot loaders still use this way. | |
1484 | ||
1da177e4 LT |
1485 | endmenu |
1486 | ||
1487 | menu "Boot options" | |
1488 | ||
1489 | # Compressed boot loader in ROM. Yes, we really want to ask about | |
1490 | # TEXT and BSS so we preserve their values in the config files. | |
1491 | config ZBOOT_ROM_TEXT | |
1492 | hex "Compressed ROM boot loader base address" | |
1493 | default "0" | |
1494 | help | |
1495 | The physical address at which the ROM-able zImage is to be | |
1496 | placed in the target. Platforms which normally make use of | |
1497 | ROM-able zImage formats normally set this to a suitable | |
1498 | value in their defconfig file. | |
1499 | ||
1500 | If ZBOOT_ROM is not enabled, this has no effect. | |
1501 | ||
1502 | config ZBOOT_ROM_BSS | |
1503 | hex "Compressed ROM boot loader BSS address" | |
1504 | default "0" | |
1505 | help | |
f8c440b2 DF |
1506 | The base address of an area of read/write memory in the target |
1507 | for the ROM-able zImage which must be available while the | |
1508 | decompressor is running. It must be large enough to hold the | |
1509 | entire decompressed kernel plus an additional 128 KiB. | |
1510 | Platforms which normally make use of ROM-able zImage formats | |
1511 | normally set this to a suitable value in their defconfig file. | |
1da177e4 LT |
1512 | |
1513 | If ZBOOT_ROM is not enabled, this has no effect. | |
1514 | ||
1515 | config ZBOOT_ROM | |
1516 | bool "Compressed boot loader in ROM/flash" | |
1517 | depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS | |
1518 | help | |
1519 | Say Y here if you intend to execute your compressed kernel image | |
1520 | (zImage) directly from ROM or flash. If unsure, say N. | |
1521 | ||
1522 | config CMDLINE | |
1523 | string "Default kernel command string" | |
1524 | default "" | |
1525 | help | |
1526 | On some architectures (EBSA110 and CATS), there is currently no way | |
1527 | for the boot loader to pass arguments to the kernel. For these | |
1528 | architectures, you should supply some command-line options at build | |
1529 | time by entering them here. As a minimum, you should specify the | |
1530 | memory size and the root device (e.g., mem=64M root=/dev/nfs). | |
1531 | ||
92d2040d AH |
1532 | config CMDLINE_FORCE |
1533 | bool "Always use the default kernel command string" | |
1534 | depends on CMDLINE != "" | |
1535 | help | |
1536 | Always use the default kernel command string, even if the boot | |
1537 | loader passes other arguments to the kernel. | |
1538 | This is useful if you cannot or don't want to change the | |
1539 | command-line options your boot loader passes to the kernel. | |
1540 | ||
1541 | If unsure, say N. | |
1542 | ||
1da177e4 LT |
1543 | config XIP_KERNEL |
1544 | bool "Kernel Execute-In-Place from ROM" | |
1545 | depends on !ZBOOT_ROM | |
1546 | help | |
1547 | Execute-In-Place allows the kernel to run from non-volatile storage | |
1548 | directly addressable by the CPU, such as NOR flash. This saves RAM | |
1549 | space since the text section of the kernel is not loaded from flash | |
1550 | to RAM. Read-write sections, such as the data section and stack, | |
1551 | are still copied to RAM. The XIP kernel is not compressed since | |
1552 | it has to run directly from flash, so it will take more space to | |
1553 | store it. The flash address used to link the kernel object files, | |
1554 | and for storing it, is configuration dependent. Therefore, if you | |
1555 | say Y here, you must know the proper physical address where to | |
1556 | store the kernel image depending on your own flash memory usage. | |
1557 | ||
1558 | Also note that the make target becomes "make xipImage" rather than | |
1559 | "make zImage" or "make Image". The final kernel binary to put in | |
1560 | ROM memory will be arch/arm/boot/xipImage. | |
1561 | ||
1562 | If unsure, say N. | |
1563 | ||
1564 | config XIP_PHYS_ADDR | |
1565 | hex "XIP Kernel Physical Location" | |
1566 | depends on XIP_KERNEL | |
1567 | default "0x00080000" | |
1568 | help | |
1569 | This is the physical address in your flash memory the kernel will | |
1570 | be linked for and stored to. This address is dependent on your | |
1571 | own flash usage. | |
1572 | ||
c587e4a6 RP |
1573 | config KEXEC |
1574 | bool "Kexec system call (EXPERIMENTAL)" | |
1575 | depends on EXPERIMENTAL | |
1576 | help | |
1577 | kexec is a system call that implements the ability to shutdown your | |
1578 | current kernel, and to start another kernel. It is like a reboot | |
01dd2fbf | 1579 | but it is independent of the system firmware. And like a reboot |
c587e4a6 RP |
1580 | you can start any kernel with it, not just Linux. |
1581 | ||
1582 | It is an ongoing process to be certain the hardware in a machine | |
1583 | is properly shutdown, so do not be surprised if this code does not | |
1584 | initially work for you. It may help to enable device hotplugging | |
1585 | support. | |
1586 | ||
4cd9d6f7 RP |
1587 | config ATAGS_PROC |
1588 | bool "Export atags in procfs" | |
b98d7291 UL |
1589 | depends on KEXEC |
1590 | default y | |
4cd9d6f7 RP |
1591 | help |
1592 | Should the atags used to boot the kernel be exported in an "atags" | |
1593 | file in procfs. Useful with kexec. | |
1594 | ||
e69edc79 EM |
1595 | config AUTO_ZRELADDR |
1596 | bool "Auto calculation of the decompressed kernel image address" | |
1597 | depends on !ZBOOT_ROM && !ARCH_U300 | |
1598 | help | |
1599 | ZRELADDR is the physical address where the decompressed kernel | |
1600 | image will be placed. If AUTO_ZRELADDR is selected, the address | |
1601 | will be determined at run-time by masking the current IP with | |
1602 | 0xf8000000. This assumes the zImage being placed in the first 128MB | |
1603 | from start of memory. | |
1604 | ||
1da177e4 LT |
1605 | endmenu |
1606 | ||
ac9d7efc | 1607 | menu "CPU Power Management" |
1da177e4 | 1608 | |
89c52ed4 | 1609 | if ARCH_HAS_CPUFREQ |
1da177e4 LT |
1610 | |
1611 | source "drivers/cpufreq/Kconfig" | |
1612 | ||
1613 | config CPU_FREQ_SA1100 | |
1614 | bool | |
1da177e4 LT |
1615 | |
1616 | config CPU_FREQ_SA1110 | |
1617 | bool | |
1da177e4 LT |
1618 | |
1619 | config CPU_FREQ_INTEGRATOR | |
1620 | tristate "CPUfreq driver for ARM Integrator CPUs" | |
1621 | depends on ARCH_INTEGRATOR && CPU_FREQ | |
1622 | default y | |
1623 | help | |
1624 | This enables the CPUfreq driver for ARM Integrator CPUs. | |
1625 | ||
1626 | For details, take a look at <file:Documentation/cpu-freq>. | |
1627 | ||
1628 | If in doubt, say Y. | |
1629 | ||
9e2697ff RK |
1630 | config CPU_FREQ_PXA |
1631 | bool | |
1632 | depends on CPU_FREQ && ARCH_PXA && PXA25x | |
1633 | default y | |
1634 | select CPU_FREQ_DEFAULT_GOV_USERSPACE | |
1635 | ||
b3748ddd MB |
1636 | config CPU_FREQ_S3C64XX |
1637 | bool "CPUfreq support for Samsung S3C64XX CPUs" | |
1638 | depends on CPU_FREQ && CPU_S3C6410 | |
1639 | ||
9d56c02a BD |
1640 | config CPU_FREQ_S3C |
1641 | bool | |
1642 | help | |
1643 | Internal configuration node for common cpufreq on Samsung SoC | |
1644 | ||
1645 | config CPU_FREQ_S3C24XX | |
1646 | bool "CPUfreq driver for Samsung S3C24XX series CPUs" | |
1647 | depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL | |
1648 | select CPU_FREQ_S3C | |
1649 | help | |
1650 | This enables the CPUfreq driver for the Samsung S3C24XX family | |
1651 | of CPUs. | |
1652 | ||
1653 | For details, take a look at <file:Documentation/cpu-freq>. | |
1654 | ||
1655 | If in doubt, say N. | |
1656 | ||
1657 | config CPU_FREQ_S3C24XX_PLL | |
1658 | bool "Support CPUfreq changing of PLL frequency" | |
1659 | depends on CPU_FREQ_S3C24XX && EXPERIMENTAL | |
1660 | help | |
1661 | Compile in support for changing the PLL frequency from the | |
1662 | S3C24XX series CPUfreq driver. The PLL takes time to settle | |
1663 | after a frequency change, so by default it is not enabled. | |
1664 | ||
1665 | This also means that the PLL tables for the selected CPU(s) will | |
1666 | be built which may increase the size of the kernel image. | |
1667 | ||
1668 | config CPU_FREQ_S3C24XX_DEBUG | |
1669 | bool "Debug CPUfreq Samsung driver core" | |
1670 | depends on CPU_FREQ_S3C24XX | |
1671 | help | |
1672 | Enable s3c_freq_dbg for the Samsung S3C CPUfreq core | |
1673 | ||
1674 | config CPU_FREQ_S3C24XX_IODEBUG | |
1675 | bool "Debug CPUfreq Samsung driver IO timing" | |
1676 | depends on CPU_FREQ_S3C24XX | |
1677 | help | |
1678 | Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core | |
1679 | ||
e6d197a6 BD |
1680 | config CPU_FREQ_S3C24XX_DEBUGFS |
1681 | bool "Export debugfs for CPUFreq" | |
1682 | depends on CPU_FREQ_S3C24XX && DEBUG_FS | |
1683 | help | |
1684 | Export status information via debugfs. | |
1685 | ||
1da177e4 LT |
1686 | endif |
1687 | ||
ac9d7efc RK |
1688 | source "drivers/cpuidle/Kconfig" |
1689 | ||
1690 | endmenu | |
1691 | ||
1da177e4 LT |
1692 | menu "Floating point emulation" |
1693 | ||
1694 | comment "At least one emulation must be selected" | |
1695 | ||
1696 | config FPE_NWFPE | |
1697 | bool "NWFPE math emulation" | |
8993a44c | 1698 | depends on !AEABI || OABI_COMPAT |
1da177e4 LT |
1699 | ---help--- |
1700 | Say Y to include the NWFPE floating point emulator in the kernel. | |
1701 | This is necessary to run most binaries. Linux does not currently | |
1702 | support floating point hardware so you need to say Y here even if | |
1703 | your machine has an FPA or floating point co-processor podule. | |
1704 | ||
1705 | You may say N here if you are going to load the Acorn FPEmulator | |
1706 | early in the bootup. | |
1707 | ||
1708 | config FPE_NWFPE_XP | |
1709 | bool "Support extended precision" | |
bedf142b | 1710 | depends on FPE_NWFPE |
1da177e4 LT |
1711 | help |
1712 | Say Y to include 80-bit support in the kernel floating-point | |
1713 | emulator. Otherwise, only 32 and 64-bit support is compiled in. | |
1714 | Note that gcc does not generate 80-bit operations by default, | |
1715 | so in most cases this option only enlarges the size of the | |
1716 | floating point emulator without any good reason. | |
1717 | ||
1718 | You almost surely want to say N here. | |
1719 | ||
1720 | config FPE_FASTFPE | |
1721 | bool "FastFPE math emulation (EXPERIMENTAL)" | |
8993a44c | 1722 | depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL |
1da177e4 LT |
1723 | ---help--- |
1724 | Say Y here to include the FAST floating point emulator in the kernel. | |
1725 | This is an experimental much faster emulator which now also has full | |
1726 | precision for the mantissa. It does not support any exceptions. | |
1727 | It is very simple, and approximately 3-6 times faster than NWFPE. | |
1728 | ||
1729 | It should be sufficient for most programs. It may be not suitable | |
1730 | for scientific calculations, but you have to check this for yourself. | |
1731 | If you do not feel you need a faster FP emulation you should better | |
1732 | choose NWFPE. | |
1733 | ||
1734 | config VFP | |
1735 | bool "VFP-format floating point maths" | |
c00d4ffd | 1736 | depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON |
1da177e4 LT |
1737 | help |
1738 | Say Y to include VFP support code in the kernel. This is needed | |
1739 | if your hardware includes a VFP unit. | |
1740 | ||
1741 | Please see <file:Documentation/arm/VFP/release-notes.txt> for | |
1742 | release notes and additional status information. | |
1743 | ||
1744 | Say N if your target does not have VFP hardware. | |
1745 | ||
25ebee02 CM |
1746 | config VFPv3 |
1747 | bool | |
1748 | depends on VFP | |
1749 | default y if CPU_V7 | |
1750 | ||
b5872db4 CM |
1751 | config NEON |
1752 | bool "Advanced SIMD (NEON) Extension support" | |
1753 | depends on VFPv3 && CPU_V7 | |
1754 | help | |
1755 | Say Y to include support code for NEON, the ARMv7 Advanced SIMD | |
1756 | Extension. | |
1757 | ||
1da177e4 LT |
1758 | endmenu |
1759 | ||
1760 | menu "Userspace binary formats" | |
1761 | ||
1762 | source "fs/Kconfig.binfmt" | |
1763 | ||
1764 | config ARTHUR | |
1765 | tristate "RISC OS personality" | |
704bdda0 | 1766 | depends on !AEABI |
1da177e4 LT |
1767 | help |
1768 | Say Y here to include the kernel code necessary if you want to run | |
1769 | Acorn RISC OS/Arthur binaries under Linux. This code is still very | |
1770 | experimental; if this sounds frightening, say N and sleep in peace. | |
1771 | You can also say M here to compile this support as a module (which | |
1772 | will be called arthur). | |
1773 | ||
1774 | endmenu | |
1775 | ||
1776 | menu "Power management options" | |
1777 | ||
eceab4ac | 1778 | source "kernel/power/Kconfig" |
1da177e4 | 1779 | |
f4cb5700 JB |
1780 | config ARCH_SUSPEND_POSSIBLE |
1781 | def_bool y | |
1782 | ||
1da177e4 LT |
1783 | endmenu |
1784 | ||
d5950b43 SR |
1785 | source "net/Kconfig" |
1786 | ||
ac25150f | 1787 | source "drivers/Kconfig" |
1da177e4 LT |
1788 | |
1789 | source "fs/Kconfig" | |
1790 | ||
1da177e4 LT |
1791 | source "arch/arm/Kconfig.debug" |
1792 | ||
1793 | source "security/Kconfig" | |
1794 | ||
1795 | source "crypto/Kconfig" | |
1796 | ||
1797 | source "lib/Kconfig" |