Commit | Line | Data |
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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 | |
12b824fb | 11 | select RTC_LIB |
1da177e4 LT |
12 | help |
13 | The ARM series is a line of low-power-consumption RISC chip designs | |
f6c8965a | 14 | licensed by ARM Ltd and targeted at embedded applications and |
1da177e4 | 15 | handhelds such as the Compaq IPAQ. ARM-based PCs are no longer |
f6c8965a | 16 | manufactured, but legacy ARM-based PC hardware remains popular in |
1da177e4 LT |
17 | Europe. There is an ARM Linux project with a web page at |
18 | <http://www.arm.linux.org.uk/>. | |
19 | ||
20 | config MMU | |
21 | bool | |
22 | default y | |
23 | ||
24 | config EISA | |
25 | bool | |
26 | ---help--- | |
27 | The Extended Industry Standard Architecture (EISA) bus was | |
28 | developed as an open alternative to the IBM MicroChannel bus. | |
29 | ||
30 | The EISA bus provided some of the features of the IBM MicroChannel | |
31 | bus while maintaining backward compatibility with cards made for | |
32 | the older ISA bus. The EISA bus saw limited use between 1988 and | |
33 | 1995 when it was made obsolete by the PCI bus. | |
34 | ||
35 | Say Y here if you are building a kernel for an EISA-based machine. | |
36 | ||
37 | Otherwise, say N. | |
38 | ||
39 | config SBUS | |
40 | bool | |
41 | ||
42 | config MCA | |
43 | bool | |
44 | help | |
45 | MicroChannel Architecture is found in some IBM PS/2 machines and | |
46 | laptops. It is a bus system similar to PCI or ISA. See | |
47 | <file:Documentation/mca.txt> (and especially the web page given | |
48 | there) before attempting to build an MCA bus kernel. | |
49 | ||
4a2581a0 TG |
50 | config GENERIC_HARDIRQS |
51 | bool | |
52 | default y | |
53 | ||
7ad1bcb2 RK |
54 | config TRACE_IRQFLAGS_SUPPORT |
55 | bool | |
56 | default y | |
57 | ||
4a2581a0 TG |
58 | config HARDIRQS_SW_RESEND |
59 | bool | |
60 | default y | |
61 | ||
62 | config GENERIC_IRQ_PROBE | |
63 | bool | |
64 | default y | |
65 | ||
1da177e4 LT |
66 | config RWSEM_GENERIC_SPINLOCK |
67 | bool | |
68 | default y | |
69 | ||
70 | config RWSEM_XCHGADD_ALGORITHM | |
71 | bool | |
72 | ||
b89c3b16 AM |
73 | config GENERIC_HWEIGHT |
74 | bool | |
75 | default y | |
76 | ||
1da177e4 LT |
77 | config GENERIC_CALIBRATE_DELAY |
78 | bool | |
79 | default y | |
80 | ||
81 | config GENERIC_BUST_SPINLOCK | |
82 | bool | |
83 | ||
a08b6b79 Z |
84 | config ARCH_MAY_HAVE_PC_FDC |
85 | bool | |
86 | ||
1da177e4 LT |
87 | config GENERIC_ISA_DMA |
88 | bool | |
89 | ||
1da177e4 LT |
90 | config FIQ |
91 | bool | |
92 | ||
034d2f5a AV |
93 | config ARCH_MTD_XIP |
94 | bool | |
95 | ||
c760fc19 HC |
96 | config VECTORS_BASE |
97 | hex | |
98 | default 0xffff0000 if MMU | |
99 | default DRAM_BASE if REMAP_VECTORS_TO_RAM | |
100 | default 0x00000000 | |
101 | help | |
102 | The base address of exception vectors. | |
103 | ||
1da177e4 LT |
104 | source "init/Kconfig" |
105 | ||
106 | menu "System Type" | |
107 | ||
108 | choice | |
109 | prompt "ARM system type" | |
6a0e2430 | 110 | default ARCH_VERSATILE |
1da177e4 | 111 | |
4af6fee1 DS |
112 | config ARCH_AAEC2000 |
113 | bool "Agilent AAEC-2000 based" | |
114 | select ARM_AMBA | |
115 | help | |
116 | This enables support for systems based on the Agilent AAEC-2000 | |
117 | ||
118 | config ARCH_INTEGRATOR | |
119 | bool "ARM Ltd. Integrator family" | |
120 | select ARM_AMBA | |
121 | select ICST525 | |
122 | help | |
123 | Support for ARM's Integrator platform. | |
124 | ||
125 | config ARCH_REALVIEW | |
126 | bool "ARM Ltd. RealView family" | |
127 | select ARM_AMBA | |
128 | select ICST307 | |
129 | help | |
130 | This enables support for ARM Ltd RealView boards. | |
131 | ||
132 | config ARCH_VERSATILE | |
133 | bool "ARM Ltd. Versatile family" | |
134 | select ARM_AMBA | |
135 | select ARM_VIC | |
136 | select ICST307 | |
137 | help | |
138 | This enables support for ARM Ltd Versatile board. | |
139 | ||
8fc5ffa0 AV |
140 | config ARCH_AT91 |
141 | bool "Atmel AT91" | |
4af6fee1 | 142 | help |
8fc5ffa0 AV |
143 | This enables support for systems based on the Atmel AT91RM9200 |
144 | and AT91SAM9xxx processors. | |
4af6fee1 | 145 | |
1da177e4 | 146 | config ARCH_CLPS7500 |
4af6fee1 | 147 | bool "Cirrus CL-PS7500FE" |
1da177e4 | 148 | select TIMER_ACORN |
f7e68bbf | 149 | select ISA |
f999b8bd MM |
150 | help |
151 | Support for the Cirrus Logic PS7500FE system-on-a-chip. | |
1da177e4 LT |
152 | |
153 | config ARCH_CLPS711X | |
4af6fee1 | 154 | bool "Cirrus Logic CLPS711x/EP721x-based" |
f999b8bd MM |
155 | help |
156 | Support for Cirrus Logic 711x/721x based boards. | |
1da177e4 LT |
157 | |
158 | config ARCH_CO285 | |
159 | bool "Co-EBSA285" | |
160 | select FOOTBRIDGE | |
161 | select FOOTBRIDGE_ADDIN | |
f999b8bd MM |
162 | help |
163 | Support for Intel's EBSA285 companion chip. | |
1da177e4 LT |
164 | |
165 | config ARCH_EBSA110 | |
166 | bool "EBSA-110" | |
f7e68bbf | 167 | select ISA |
1da177e4 LT |
168 | help |
169 | This is an evaluation board for the StrongARM processor available | |
f6c8965a | 170 | from Digital. It has limited hardware on-board, including an |
1da177e4 LT |
171 | Ethernet interface, two PCMCIA sockets, two serial ports and a |
172 | parallel port. | |
173 | ||
e7736d47 LB |
174 | config ARCH_EP93XX |
175 | bool "EP93xx-based" | |
176 | select ARM_AMBA | |
177 | select ARM_VIC | |
178 | help | |
179 | This enables support for the Cirrus EP93xx series of CPUs. | |
180 | ||
1da177e4 LT |
181 | config ARCH_FOOTBRIDGE |
182 | bool "FootBridge" | |
183 | select FOOTBRIDGE | |
f999b8bd MM |
184 | help |
185 | Support for systems based on the DC21285 companion chip | |
186 | ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder. | |
1da177e4 | 187 | |
4af6fee1 DS |
188 | config ARCH_NETX |
189 | bool "Hilscher NetX based" | |
190 | select ARM_VIC | |
f999b8bd | 191 | help |
4af6fee1 DS |
192 | This enables support for systems based on the Hilscher NetX Soc |
193 | ||
194 | config ARCH_H720X | |
195 | bool "Hynix HMS720x-based" | |
196 | select ISA_DMA_API | |
197 | help | |
198 | This enables support for systems based on the Hynix HMS720x | |
199 | ||
200 | config ARCH_IMX | |
201 | bool "IMX" | |
202 | help | |
203 | Support for Motorola's i.MX family of processors (MX1, MXL). | |
1da177e4 | 204 | |
3f7e5815 LB |
205 | config ARCH_IOP32X |
206 | bool "IOP32x-based" | |
a4f7e763 | 207 | depends on MMU |
f7e68bbf | 208 | select PCI |
f999b8bd | 209 | help |
3f7e5815 LB |
210 | Support for Intel's 80219 and IOP32X (XScale) family of |
211 | processors. | |
212 | ||
213 | config ARCH_IOP33X | |
214 | bool "IOP33x-based" | |
215 | depends on MMU | |
216 | select PCI | |
217 | help | |
218 | Support for Intel's IOP33X (XScale) family of processors. | |
1da177e4 LT |
219 | |
220 | config ARCH_IXP4XX | |
221 | bool "IXP4xx-based" | |
a4f7e763 | 222 | depends on MMU |
f999b8bd MM |
223 | help |
224 | Support for Intel's IXP4XX (XScale) family of processors. | |
1da177e4 LT |
225 | |
226 | config ARCH_IXP2000 | |
227 | bool "IXP2400/2800-based" | |
a4f7e763 | 228 | depends on MMU |
f7e68bbf | 229 | select PCI |
f999b8bd MM |
230 | help |
231 | Support for Intel's IXP2400/2800 (XScale) family of processors. | |
1da177e4 | 232 | |
c4713074 LB |
233 | config ARCH_IXP23XX |
234 | bool "IXP23XX-based" | |
a4f7e763 | 235 | depends on MMU |
c4713074 LB |
236 | select PCI |
237 | help | |
238 | Support for Intel's IXP23xx (XScale) family of processors. | |
239 | ||
1da177e4 LT |
240 | config ARCH_L7200 |
241 | bool "LinkUp-L7200" | |
242 | select FIQ | |
243 | help | |
244 | Say Y here if you intend to run this kernel on a LinkUp Systems | |
245 | L7200 Software Development Board which uses an ARM720T processor. | |
246 | Information on this board can be obtained at: | |
247 | ||
248 | <http://www.linkupsys.com/> | |
249 | ||
250 | If you have any questions or comments about the Linux kernel port | |
251 | to this board, send e-mail to <sjhill@cotw.com>. | |
252 | ||
4af6fee1 DS |
253 | config ARCH_PNX4008 |
254 | bool "Philips Nexperia PNX4008 Mobile" | |
255 | help | |
256 | This enables support for Philips PNX4008 mobile platform. | |
257 | ||
1da177e4 LT |
258 | config ARCH_PXA |
259 | bool "PXA2xx-based" | |
a4f7e763 | 260 | depends on MMU |
034d2f5a | 261 | select ARCH_MTD_XIP |
f999b8bd MM |
262 | help |
263 | Support for Intel's PXA2XX processor line. | |
1da177e4 LT |
264 | |
265 | config ARCH_RPC | |
266 | bool "RiscPC" | |
267 | select ARCH_ACORN | |
268 | select FIQ | |
269 | select TIMER_ACORN | |
a08b6b79 | 270 | select ARCH_MAY_HAVE_PC_FDC |
065909b9 | 271 | select ISA_DMA_API |
1da177e4 LT |
272 | help |
273 | On the Acorn Risc-PC, Linux can support the internal IDE disk and | |
274 | CD-ROM interface, serial and parallel port, and the floppy drive. | |
275 | ||
276 | config ARCH_SA1100 | |
277 | bool "SA1100-based" | |
f7e68bbf | 278 | select ISA |
3cd9e19e | 279 | select ARCH_DISCONTIGMEM_ENABLE |
034d2f5a | 280 | select ARCH_MTD_XIP |
f999b8bd MM |
281 | help |
282 | Support for StrongARM 11x0 based boards. | |
1da177e4 LT |
283 | |
284 | config ARCH_S3C2410 | |
cd701aa2 | 285 | bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442" |
1da177e4 LT |
286 | help |
287 | Samsung S3C2410X CPU based systems, such as the Simtec Electronics | |
288 | BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or | |
f6c8965a | 289 | the Samsung SMDK2410 development board (and derivatives). |
1da177e4 LT |
290 | |
291 | config ARCH_SHARK | |
292 | bool "Shark" | |
f7e68bbf RK |
293 | select ISA |
294 | select ISA_DMA | |
295 | select PCI | |
f999b8bd MM |
296 | help |
297 | Support for the StrongARM based Digital DNARD machine, also known | |
298 | as "Shark" (<http://www.shark-linux.de/shark.html>). | |
1da177e4 LT |
299 | |
300 | config ARCH_LH7A40X | |
301 | bool "Sharp LH7A40X" | |
302 | help | |
303 | Say Y here for systems based on one of the Sharp LH7A40X | |
304 | System on a Chip processors. These CPUs include an ARM922T | |
305 | core with a wide array of integrated devices for | |
306 | hand-held and low-power applications. | |
307 | ||
308 | config ARCH_OMAP | |
309 | bool "TI OMAP" | |
f999b8bd MM |
310 | help |
311 | Support for TI's OMAP platform (OMAP1 and OMAP2). | |
1da177e4 | 312 | |
1da177e4 LT |
313 | endchoice |
314 | ||
315 | source "arch/arm/mach-clps711x/Kconfig" | |
316 | ||
e7736d47 LB |
317 | source "arch/arm/mach-ep93xx/Kconfig" |
318 | ||
1da177e4 LT |
319 | source "arch/arm/mach-footbridge/Kconfig" |
320 | ||
321 | source "arch/arm/mach-integrator/Kconfig" | |
322 | ||
3f7e5815 LB |
323 | source "arch/arm/mach-iop32x/Kconfig" |
324 | ||
325 | source "arch/arm/mach-iop33x/Kconfig" | |
1da177e4 LT |
326 | |
327 | source "arch/arm/mach-ixp4xx/Kconfig" | |
328 | ||
329 | source "arch/arm/mach-ixp2000/Kconfig" | |
330 | ||
c4713074 LB |
331 | source "arch/arm/mach-ixp23xx/Kconfig" |
332 | ||
1da177e4 LT |
333 | source "arch/arm/mach-pxa/Kconfig" |
334 | ||
335 | source "arch/arm/mach-sa1100/Kconfig" | |
336 | ||
d48af15e TL |
337 | source "arch/arm/plat-omap/Kconfig" |
338 | ||
339 | source "arch/arm/mach-omap1/Kconfig" | |
1da177e4 | 340 | |
1dbae815 TL |
341 | source "arch/arm/mach-omap2/Kconfig" |
342 | ||
1da177e4 LT |
343 | source "arch/arm/mach-s3c2410/Kconfig" |
344 | ||
345 | source "arch/arm/mach-lh7a40x/Kconfig" | |
346 | ||
347 | source "arch/arm/mach-imx/Kconfig" | |
348 | ||
349 | source "arch/arm/mach-h720x/Kconfig" | |
350 | ||
351 | source "arch/arm/mach-versatile/Kconfig" | |
352 | ||
038c5b60 BN |
353 | source "arch/arm/mach-aaec2000/Kconfig" |
354 | ||
8ad68bbf CM |
355 | source "arch/arm/mach-realview/Kconfig" |
356 | ||
73a59c1c SP |
357 | source "arch/arm/mach-at91rm9200/Kconfig" |
358 | ||
bb6d8c88 SH |
359 | source "arch/arm/mach-netx/Kconfig" |
360 | ||
1da177e4 LT |
361 | # Definitions to make life easier |
362 | config ARCH_ACORN | |
363 | bool | |
364 | ||
365 | source arch/arm/mm/Kconfig | |
366 | ||
367 | # bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER | |
368 | config XSCALE_PMU | |
369 | bool | |
370 | depends on CPU_XSCALE && !XSCALE_PMU_TIMER | |
371 | default y | |
372 | ||
3b93e7b0 HC |
373 | if !MMU |
374 | source "arch/arm/Kconfig-nommu" | |
375 | endif | |
376 | ||
1da177e4 LT |
377 | endmenu |
378 | ||
379 | source "arch/arm/common/Kconfig" | |
380 | ||
381 | config FORCE_MAX_ZONEORDER | |
382 | int | |
383 | depends on SA1111 | |
384 | default "9" | |
385 | ||
386 | menu "Bus support" | |
387 | ||
388 | config ARM_AMBA | |
389 | bool | |
390 | ||
391 | config ISA | |
392 | bool | |
1da177e4 LT |
393 | help |
394 | Find out whether you have ISA slots on your motherboard. ISA is the | |
395 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
396 | inside your box. Other bus systems are PCI, EISA, MicroChannel | |
397 | (MCA) or VESA. ISA is an older system, now being displaced by PCI; | |
398 | newer boards don't support it. If you have ISA, say Y, otherwise N. | |
399 | ||
065909b9 | 400 | # Select ISA DMA controller support |
1da177e4 LT |
401 | config ISA_DMA |
402 | bool | |
065909b9 | 403 | select ISA_DMA_API |
1da177e4 | 404 | |
065909b9 | 405 | # Select ISA DMA interface |
5cae841b AV |
406 | config ISA_DMA_API |
407 | bool | |
5cae841b | 408 | |
1da177e4 | 409 | config PCI |
68939121 | 410 | bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX |
1da177e4 LT |
411 | help |
412 | Find out whether you have a PCI motherboard. PCI is the name of a | |
413 | bus system, i.e. the way the CPU talks to the other stuff inside | |
414 | your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or | |
415 | VESA. If you have PCI, say Y, otherwise N. | |
416 | ||
417 | The PCI-HOWTO, available from | |
418 | <http://www.tldp.org/docs.html#howto>, contains valuable | |
419 | information about which PCI hardware does work under Linux and which | |
420 | doesn't. | |
421 | ||
422 | # Select the host bridge type | |
423 | config PCI_HOST_VIA82C505 | |
424 | bool | |
425 | depends on PCI && ARCH_SHARK | |
426 | default y | |
427 | ||
428 | source "drivers/pci/Kconfig" | |
429 | ||
430 | source "drivers/pcmcia/Kconfig" | |
431 | ||
432 | endmenu | |
433 | ||
434 | menu "Kernel Features" | |
435 | ||
436 | config SMP | |
437 | bool "Symmetric Multi-Processing (EXPERIMENTAL)" | |
f6db449c | 438 | depends on EXPERIMENTAL && REALVIEW_MPCORE |
1da177e4 LT |
439 | help |
440 | This enables support for systems with more than one CPU. If you have | |
441 | a system with only one CPU, like most personal computers, say N. If | |
442 | you have a system with more than one CPU, say Y. | |
443 | ||
444 | If you say N here, the kernel will run on single and multiprocessor | |
445 | machines, but will use only one CPU of a multiprocessor machine. If | |
446 | you say Y here, the kernel will run on many, but not all, single | |
447 | processor machines. On a single processor machine, the kernel will | |
448 | run faster if you say N here. | |
449 | ||
12c62c2e AO |
450 | See also the <file:Documentation/smp.txt>, |
451 | <file:Documentation/i386/IO-APIC.txt>, | |
1da177e4 LT |
452 | <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at |
453 | <http://www.linuxdoc.org/docs.html#howto>. | |
454 | ||
455 | If you don't know what to do here, say N. | |
456 | ||
457 | config NR_CPUS | |
458 | int "Maximum number of CPUs (2-32)" | |
459 | range 2 32 | |
460 | depends on SMP | |
461 | default "4" | |
462 | ||
a054a811 RK |
463 | config HOTPLUG_CPU |
464 | bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" | |
465 | depends on SMP && HOTPLUG && EXPERIMENTAL | |
466 | help | |
467 | Say Y here to experiment with turning CPUs off and on. CPUs | |
468 | can be controlled through /sys/devices/system/cpu. | |
469 | ||
37ee16ae RK |
470 | config LOCAL_TIMERS |
471 | bool "Use local timer interrupts" | |
2a98beb6 | 472 | depends on SMP && REALVIEW_MPCORE |
37ee16ae RK |
473 | default y |
474 | help | |
475 | Enable support for local timers on SMP platforms, rather then the | |
476 | legacy IPI broadcast method. Local timers allows the system | |
477 | accounting to be spread across the timer interval, preventing a | |
478 | "thundering herd" at every timer tick. | |
479 | ||
1da177e4 LT |
480 | config PREEMPT |
481 | bool "Preemptible Kernel (EXPERIMENTAL)" | |
482 | depends on EXPERIMENTAL | |
483 | help | |
484 | This option reduces the latency of the kernel when reacting to | |
485 | real-time or interactive events by allowing a low priority process to | |
486 | be preempted even if it is in kernel mode executing a system call. | |
487 | This allows applications to run more reliably even when the system is | |
488 | under load. | |
489 | ||
490 | Say Y here if you are building a kernel for a desktop, embedded | |
491 | or real-time system. Say N if you are unsure. | |
492 | ||
8749af68 RK |
493 | config NO_IDLE_HZ |
494 | bool "Dynamic tick timer" | |
495 | help | |
496 | Select this option if you want to disable continuous timer ticks | |
497 | and have them programmed to occur as required. This option saves | |
498 | power as the system can remain in idle state for longer. | |
499 | ||
500 | By default dynamic tick is disabled during the boot, and can be | |
501 | manually enabled with: | |
502 | ||
503 | echo 1 > /sys/devices/system/timer/timer0/dyn_tick | |
504 | ||
505 | Alternatively, if you want dynamic tick automatically enabled | |
506 | during boot, pass "dyntick=enable" via the kernel command string. | |
507 | ||
f2be64b3 TL |
508 | Please note that dynamic tick may affect the accuracy of |
509 | timekeeping on some platforms depending on the implementation. | |
569d2c34 NP |
510 | Currently at least OMAP, PXA2xx and SA11x0 platforms are known |
511 | to have accurate timekeeping with dynamic tick. | |
f2be64b3 | 512 | |
f8065813 RK |
513 | config HZ |
514 | int | |
515 | default 128 if ARCH_L7200 | |
516 | default 200 if ARCH_EBSA110 || ARCH_S3C2410 | |
bfe65704 | 517 | default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER |
f8065813 RK |
518 | default 100 |
519 | ||
704bdda0 NP |
520 | config AEABI |
521 | bool "Use the ARM EABI to compile the kernel" | |
522 | help | |
523 | This option allows for the kernel to be compiled using the latest | |
524 | ARM ABI (aka EABI). This is only useful if you are using a user | |
525 | space environment that is also compiled with EABI. | |
526 | ||
527 | Since there are major incompatibilities between the legacy ABI and | |
528 | EABI, especially with regard to structure member alignment, this | |
529 | option also changes the kernel syscall calling convention to | |
530 | disambiguate both ABIs and allow for backward compatibility support | |
531 | (selected with CONFIG_OABI_COMPAT). | |
532 | ||
533 | To use this you need GCC version 4.0.0 or later. | |
534 | ||
6c90c872 | 535 | config OABI_COMPAT |
a73a3ff1 | 536 | bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)" |
61c484d4 | 537 | depends on AEABI && EXPERIMENTAL |
6c90c872 NP |
538 | default y |
539 | help | |
540 | This option preserves the old syscall interface along with the | |
541 | new (ARM EABI) one. It also provides a compatibility layer to | |
542 | intercept syscalls that have structure arguments which layout | |
543 | in memory differs between the legacy ABI and the new ARM EABI | |
544 | (only for non "thumb" binaries). This option adds a tiny | |
545 | overhead to all syscalls and produces a slightly larger kernel. | |
546 | If you know you'll be using only pure EABI user space then you | |
547 | can say N here. If this option is not selected and you attempt | |
548 | to execute a legacy ABI binary then the result will be | |
549 | UNPREDICTABLE (in fact it can be predicted that it won't work | |
550 | at all). If in doubt say Y. | |
551 | ||
3f22ab27 | 552 | config ARCH_DISCONTIGMEM_ENABLE |
1da177e4 | 553 | bool |
f7e68bbf | 554 | default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM) |
1da177e4 LT |
555 | help |
556 | Say Y to support efficient handling of discontiguous physical memory, | |
557 | for architectures which are either NUMA (Non-Uniform Memory Access) | |
558 | or have huge holes in the physical address space for other reasons. | |
559 | See <file:Documentation/vm/numa> for more. | |
560 | ||
c80d79d7 YG |
561 | config NODES_SHIFT |
562 | int | |
563 | default "4" if ARCH_LH7A40X | |
564 | default "2" | |
565 | depends on NEED_MULTIPLE_NODES | |
566 | ||
3f22ab27 DH |
567 | source "mm/Kconfig" |
568 | ||
1da177e4 LT |
569 | config LEDS |
570 | bool "Timer and CPU usage LEDs" | |
571 | depends on ARCH_CDB89712 || ARCH_CO285 || ARCH_EBSA110 || \ | |
572 | ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \ | |
573 | ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \ | |
574 | ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \ | |
73a59c1c | 575 | ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \ |