tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#
2# For a description of the syntax of this configuration file,
3# see Documentation/kbuild/kconfig-language.txt.
4#
5config M68K
6 bool
7 default y
8 select HAVE_IDE
9
10config MMU
11 bool
12 default y
13
14config RWSEM_GENERIC_SPINLOCK
15 bool
16 default y
17
18config RWSEM_XCHGADD_ALGORITHM
19 bool
20
21config ARCH_HAS_ILOG2_U32
22 bool
23 default n
24
25config ARCH_HAS_ILOG2_U64
26 bool
27 default n
28
29config GENERIC_HWEIGHT
30 bool
31 default y
32
33config GENERIC_CALIBRATE_DELAY
34 bool
35 default y
36
37config TIME_LOW_RES
38 bool
39 default y
40
41config GENERIC_IOMAP
42 bool
43 default y
44
45config ARCH_MAY_HAVE_PC_FDC
46 bool
47 depends on Q40 || (BROKEN && SUN3X)
48 default y
49
50config NO_IOPORT
51 def_bool y
52
53config NO_DMA
54 def_bool SUN3
55
56config ARCH_SUPPORTS_AOUT
57 def_bool y
58
59config HZ
60 int
61 default 100
62
63mainmenu "Linux/68k Kernel Configuration"
64
65source "init/Kconfig"
66
67menu "Platform dependent setup"
68
69config 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
84config MCA
85 bool
86 help
87 MicroChannel Architecture is found in some IBM PS/2 machines and
88 laptops. It is a bus system similar to PCI or ISA. See
89 <file:Documentation/mca.txt> (and especially the web page given
90 there) before attempting to build an MCA bus kernel.
91
92config PCMCIA
93 tristate
94 ---help---
95 Say Y here if you want to attach PCMCIA- or PC-cards to your Linux
96 computer. These are credit-card size devices such as network cards,
97 modems or hard drives often used with laptops computers. There are
98 actually two varieties of these cards: the older 16 bit PCMCIA cards
99 and the newer 32 bit CardBus cards. If you want to use CardBus
100 cards, you need to say Y here and also to "CardBus support" below.
101
102 To use your PC-cards, you will need supporting software from David
103 Hinds' pcmcia-cs package (see the file <file:Documentation/Changes>
104 for location). Please also read the PCMCIA-HOWTO, available from
105 <http://www.tldp.org/docs.html#howto>.
106
107 To compile this driver as modules, choose M here: the
108 modules will be called pcmcia_core and ds.
109
110config SUN3
111 bool "Sun3 support"
112 select M68020
113 select MMU_SUN3 if MMU
114 help
115 This option enables support for the Sun 3 series of workstations
116 (3/50, 3/60, 3/1xx, 3/2xx systems). Enabling this option requires
117 that all other hardware types must be disabled, as Sun 3 kernels
118 are incompatible with all other m68k targets (including Sun 3x!).
119
120 If you don't want to compile a kernel exclusively for a Sun 3, say N.
121
122config AMIGA
123 bool "Amiga support"
124 depends on !MMU_SUN3
125 help
126 This option enables support for the Amiga series of computers. If
127 you plan to use this kernel on an Amiga, say Y here and browse the
128 material available in <file:Documentation/m68k>; otherwise say N.
129
130config ATARI
131 bool "Atari support"
132 depends on !MMU_SUN3
133 help
134 This option enables support for the 68000-based Atari series of
135 computers (including the TT, Falcon and Medusa). If you plan to use
136 this kernel on an Atari, say Y here and browse the material
137 available in <file:Documentation/m68k>; otherwise say N.
138
139config HADES
140 bool "Hades support"
141 depends on ATARI && BROKEN
142 help
143 This option enables support for the Hades Atari clone. If you plan
144 to use this kernel on a Hades, say Y here; otherwise say N.
145
146config PCI
147 bool
148 depends on HADES
149 default y
150 help
151 Find out whether you have a PCI motherboard. PCI is the name of a
152 bus system, i.e. the way the CPU talks to the other stuff inside
153 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
154 VESA. If you have PCI, say Y, otherwise N.
155
156config MAC
157 bool "Macintosh support"
158 depends on !MMU_SUN3
159 help
160 This option enables support for the Apple Macintosh series of
161 computers (yes, there is experimental support now, at least for part
162 of the series).
163
164 Say N unless you're willing to code the remaining necessary support.
165 ;)
166
167config NUBUS
168 bool
169 depends on MAC
170 default y
171
172config M68K_L2_CACHE
173 bool
174 depends on MAC
175 default y
176
177config APOLLO
178 bool "Apollo support"
179 depends on !MMU_SUN3
180 help
181 Say Y here if you want to run Linux on an MC680x0-based Apollo
182 Domain workstation such as the DN3500.
183
184config VME
185 bool "VME (Motorola and BVM) support"
186 depends on !MMU_SUN3
187 help
188 Say Y here if you want to build a kernel for a 680x0 based VME
189 board. Boards currently supported include Motorola boards MVME147,
190 MVME162, MVME166, MVME167, MVME172, and MVME177. BVME4000 and
191 BVME6000 boards from BVM Ltd are also supported.
192
193config MVME147
194 bool "MVME147 support"
195 depends on VME
196 help
197 Say Y to include support for early Motorola VME boards. This will
198 build a kernel which can run on MVME147 single-board computers. If
199 you select this option you will have to select the appropriate
200 drivers for SCSI, Ethernet and serial ports later on.
201
202config MVME16x
203 bool "MVME162, 166 and 167 support"
204 depends on VME
205 help
206 Say Y to include support for Motorola VME boards. This will build a
207 kernel which can run on MVME162, MVME166, MVME167, MVME172, and
208 MVME177 boards. If you select this option you will have to select
209 the appropriate drivers for SCSI, Ethernet and serial ports later
210 on.
211
212config BVME6000
213 bool "BVME4000 and BVME6000 support"
214 depends on VME
215 help
216 Say Y to include support for VME boards from BVM Ltd. This will
217 build a kernel which can run on BVME4000 and BVME6000 boards. If
218 you select this option you will have to select the appropriate
219 drivers for SCSI, Ethernet and serial ports later on.
220
221config HP300
222 bool "HP9000/300 and HP9000/400 support"
223 depends on !MMU_SUN3
224 help
225 This option enables support for the HP9000/300 and HP9000/400 series
226 of workstations. Support for these machines is still somewhat
227 experimental. If you plan to try to use the kernel on such a machine
228 say Y here.
229 Everybody else says N.
230
231config DIO
232 bool "DIO bus support"
233 depends on HP300
234 default y
235 help
236 Say Y here to enable support for the "DIO" expansion bus used in
237 HP300 machines. If you are using such a system you almost certainly
238 want this.
239
240config SUN3X
241 bool "Sun3x support"
242 depends on !MMU_SUN3
243 select M68030
244 help
245 This option enables support for the Sun 3x series of workstations.
246 Be warned that this support is very experimental.
247 Note that Sun 3x kernels are not compatible with Sun 3 hardware.
248 General Linux information on the Sun 3x series (now discontinued)
249 is at <http://www.angelfire.com/ca2/tech68k/sun3.html>.
250
251 If you don't want to compile a kernel for a Sun 3x, say N.
252
253config Q40
254 bool "Q40/Q60 support"
255 depends on !MMU_SUN3
256 help
257 The Q40 is a Motorola 68040-based successor to the Sinclair QL
258 manufactured in Germany. There is an official Q40 home page at
259 <http://www.q40.de/>. This option enables support for the Q40 and
260 Q60. Select your CPU below. For 68LC060 don't forget to enable FPU
261 emulation.
262
263comment "Processor type"
264
265config M68020
266 bool "68020 support"
267 help
268 If you anticipate running this kernel on a computer with a MC68020
269 processor, say Y. Otherwise, say N. Note that the 68020 requires a
270 68851 MMU (Memory Management Unit) to run Linux/m68k, except on the
271 Sun 3, which provides its own version.
272
273config M68030
274 bool "68030 support"
275 depends on !MMU_SUN3
276 help
277 If you anticipate running this kernel on a computer with a MC68030
278 processor, say Y. Otherwise, say N. Note that a MC68EC030 will not
279 work, as it does not include an MMU (Memory Management Unit).
280
281config M68040
282 bool "68040 support"
283 depends on !MMU_SUN3
284 help
285 If you anticipate running this kernel on a computer with a MC68LC040
286 or MC68040 processor, say Y. Otherwise, say N. Note that an
287 MC68EC040 will not work, as it does not include an MMU (Memory
288 Management Unit).
289
290config M68060
291 bool "68060 support"
292 depends on !MMU_SUN3
293 help
294 If you anticipate running this kernel on a computer with a MC68060
295 processor, say Y. Otherwise, say N.
296
297config MMU_MOTOROLA
298 bool
299 depends on MMU && !MMU_SUN3
300 default y
301
302config MMU_SUN3
303 bool
304
305config M68KFPU_EMU
306 bool "Math emulation support (EXPERIMENTAL)"
307 depends on EXPERIMENTAL
308 help
309 At some point in the future, this will cause floating-point math
310 instructions to be emulated by the kernel on machines that lack a
311 floating-point math coprocessor. Thrill-seekers and chronically
312 sleep-deprived psychotic hacker types can say Y now, everyone else
313 should probably wait a while.
314
315config M68KFPU_EMU_EXTRAPREC
316 bool "Math emulation extra precision"
317 depends on M68KFPU_EMU
318 help
319 The fpu uses normally a few bit more during calculations for
320 correct rounding, the emulator can (often) do the same but this
321 extra calculation can cost quite some time, so you can disable
322 it here. The emulator will then "only" calculate with a 64 bit
323 mantissa and round slightly incorrect, what is more then enough
324 for normal usage.
325
326config M68KFPU_EMU_ONLY
327 bool "Math emulation only kernel"
328 depends on M68KFPU_EMU
329 help
330 This option prevents any floating-point instructions from being
331 compiled into the kernel, thereby the kernel doesn't save any
332 floating point context anymore during task switches, so this
333 kernel will only be usable on machines without a floating-point
334 math coprocessor. This makes the kernel a bit faster as no tests
335 needs to be executed whether a floating-point instruction in the
336 kernel should be executed or not.
337
338config ADVANCED
339 bool "Advanced configuration options"
340 ---help---
341 This gives you access to some advanced options for the CPU. The
342 defaults should be fine for most users, but these options may make
343 it possible for you to improve performance somewhat if you know what
344 you are doing.
345
346 Note that the answer to this question won't directly affect the
347 kernel: saying N will just cause the configurator to skip all
348 the questions about these options.
349
350 Most users should say N to this question.
351
352config RMW_INSNS
353 bool "Use read-modify-write instructions"
354 depends on ADVANCED
355 ---help---
356 This allows to use certain instructions that work with indivisible
357 read-modify-write bus cycles. While this is faster than the
358 workaround of disabling interrupts, it can conflict with DMA
359 ( = direct memory access) on many Amiga systems, and it is also said
360 to destabilize other machines. It is very likely that this will
361 cause serious problems on any Amiga or Atari Medusa if set. The only
362 configuration where it should work are 68030-based Ataris, where it
363 apparently improves performance. But you've been warned! Unless you
364 really know what you are doing, say N. Try Y only if you're quite
365 adventurous.
366
367config SINGLE_MEMORY_CHUNK
368 bool "Use one physical chunk of memory only" if ADVANCED && !SUN3
369 default y if SUN3
370 select NEED_MULTIPLE_NODES
371 help
372 Ignore all but the first contiguous chunk of physical memory for VM
373 purposes. This will save a few bytes kernel size and may speed up
374 some operations. Say N if not sure.
375
376config 060_WRITETHROUGH
377 bool "Use write-through caching for 68060 supervisor accesses"
378 depends on ADVANCED && M68060
379 ---help---
380 The 68060 generally uses copyback caching of recently accessed data.
381 Copyback caching means that memory writes will be held in an on-chip
382 cache and only written back to memory some time later. Saying Y
383 here will force supervisor (kernel) accesses to use writethrough
384 caching. Writethrough caching means that data is written to memory
385 straight away, so that cache and memory data always agree.
386 Writethrough caching is less efficient, but is needed for some
387 drivers on 68060 based systems where the 68060 bus snooping signal
388 is hardwired on. The 53c710 SCSI driver is known to suffer from
389 this problem.
390
391config ARCH_DISCONTIGMEM_ENABLE
392 def_bool !SINGLE_MEMORY_CHUNK
393
394config NODES_SHIFT
395 int
396 default "3"
397 depends on !SINGLE_MEMORY_CHUNK
398
399source "mm/Kconfig"
400
401endmenu
402
403menu "General setup"
404
405source "fs/Kconfig.binfmt"
406
407config ZORRO
408 bool "Amiga Zorro (AutoConfig) bus support"
409 depends on AMIGA
410 help
411 This enables support for the Zorro bus in the Amiga. If you have
412 expansion cards in your Amiga that conform to the Amiga
413 AutoConfig(tm) specification, say Y, otherwise N. Note that even
414 expansion cards that do not fit in the Zorro slots but fit in e.g.
415 the CPU slot may fall in this category, so you have to say Y to let
416 Linux use these.
417
418config AMIGA_PCMCIA
419 bool "Amiga 1200/600 PCMCIA support (EXPERIMENTAL)"
420 depends on AMIGA && EXPERIMENTAL
421 help
422 Include support in the kernel for pcmcia on Amiga 1200 and Amiga
423 600. If you intend to use pcmcia cards say Y; otherwise say N.
424
425config STRAM_PROC
426 bool "ST-RAM statistics in /proc"
427 depends on ATARI
428 help
429 Say Y here to report ST-RAM usage statistics in /proc/stram.
430
431config HEARTBEAT
432 bool "Use power LED as a heartbeat" if AMIGA || APOLLO || ATARI || MAC ||Q40
433 default y if !AMIGA && !APOLLO && !ATARI && !MAC && !Q40 && HP300
434 help
435 Use the power-on LED on your machine as a load meter. The exact
436 behavior is platform-dependent, but normally the flash frequency is
437 a hyperbolic function of the 5-minute load average.
438
439# We have a dedicated heartbeat LED. :-)
440config PROC_HARDWARE
441 bool "/proc/hardware support"
442 help
443 Say Y here to support the /proc/hardware file, which gives you
444 access to information about the machine you're running on,
445 including the model, CPU, MMU, clock speed, BogoMIPS rating,
446 and memory size.
447
448config ISA
449 bool
450 depends on Q40 || AMIGA_PCMCIA || GG2
451 default y
452 help
453 Find out whether you have ISA slots on your motherboard. ISA is the
454 name of a bus system, i.e. the way the CPU talks to the other stuff
455 inside your box. Other bus systems are PCI, EISA, MicroChannel
456 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
457 newer boards don't support it. If you have ISA, say Y, otherwise N.
458
459config GENERIC_ISA_DMA
460 bool
461 depends on Q40 || AMIGA_PCMCIA || GG2
462 default y
463
464config ZONE_DMA
465 bool
466 default y
467
468source "drivers/pci/Kconfig"
469
470source "drivers/zorro/Kconfig"
471
472endmenu
473
474source "net/Kconfig"
475
476source "drivers/Kconfig"
477
478menu "Character devices"
479
480config ATARI_MFPSER
481 tristate "Atari MFP serial support"
482 depends on ATARI
483 ---help---
484 If you like to use the MFP serial ports ("Modem1", "Serial1") under
485 Linux, say Y. The driver equally supports all kinds of MFP serial
486 ports and automatically detects whether Serial1 is available.
487
488 To compile this driver as a module, choose M here.
489
490 Note for Falcon users: You also have an MFP port, it's just not
491 wired to the outside... But you could use the port under Linux.
492
493config ATARI_SCC
494 tristate "Atari SCC serial support"
495 depends on ATARI
496 ---help---
497 If you have serial ports based on a Zilog SCC chip (Modem2, Serial2,
498 LAN) and like to use them under Linux, say Y. All built-in SCC's are
499 supported (TT, MegaSTE, Falcon), and also the ST-ESCC. If you have
500 two connectors for channel A (Serial2 and LAN), they are visible as
501 two separate devices.
502
503 To compile this driver as a module, choose M here.
504
505config ATARI_SCC_DMA
506 bool "Atari SCC serial DMA support"
507 depends on ATARI_SCC
508 help
509 This enables DMA support for receiving data on channel A of the SCC.
510 If you have a TT you may say Y here and read
511 drivers/char/atari_SCC.README. All other users should say N here,
512 because only the TT has SCC-DMA, even if your machine keeps claiming
513 so at boot time.
514
515config ATARI_MIDI
516 tristate "Atari MIDI serial support"
517 depends on ATARI
518 help
519 If you want to use your Atari's MIDI port in Linux, say Y.
520
521 To compile this driver as a module, choose M here.
522
523config ATARI_DSP56K
524 tristate "Atari DSP56k support (EXPERIMENTAL)"
525 depends on ATARI && EXPERIMENTAL
526 help
527 If you want to be able to use the DSP56001 in Falcons, say Y. This
528 driver is still experimental, and if you don't know what it is, or
529 if you don't have this processor, just say N.
530
531 To compile this driver as a module, choose M here.
532
533config AMIGA_BUILTIN_SERIAL
534 tristate "Amiga builtin serial support"
535 depends on AMIGA
536 help
537 If you want to use your Amiga's built-in serial port in Linux,
538 answer Y.
539
540 To compile this driver as a module, choose M here.
541
542config WHIPPET_SERIAL
543 tristate "Hisoft Whippet PCMCIA serial support"
544 depends on AMIGA_PCMCIA
545 help
546 HiSoft has a web page at <http://www.hisoft.co.uk/>, but there
547 is no listing for the Whippet in their Amiga section.
548
549config MULTIFACE_III_TTY
550 tristate "Multiface Card III serial support"
551 depends on AMIGA
552 help
553 If you want to use a Multiface III card's serial port in Linux,
554 answer Y.
555
556 To compile this driver as a module, choose M here.
557
558config GVPIOEXT
559 tristate "GVP IO-Extender support"
560 depends on PARPORT=n && ZORRO
561 help
562 If you want to use a GVP IO-Extender serial card in Linux, say Y.
563 Otherwise, say N.
564
565config GVPIOEXT_LP
566 tristate "GVP IO-Extender parallel printer support"
567 depends on GVPIOEXT
568 help
569 Say Y to enable driving a printer from the parallel port on your
570 GVP IO-Extender card, N otherwise.
571
572config GVPIOEXT_PLIP
573 tristate "GVP IO-Extender PLIP support"
574 depends on GVPIOEXT
575 help
576 Say Y to enable doing IP over the parallel port on your GVP
577 IO-Extender card, N otherwise.
578
579config MAC_SCC
580 tristate "Macintosh serial support"
581 depends on MAC
582
583config MAC_HID
584 bool
585 depends on INPUT_ADBHID
586 default y
587
588config ADB_KEYBOARD
589 bool "Support for ADB keyboard (old driver)"
590 depends on MAC && !INPUT_ADBHID
591 help
592 This option allows you to use an ADB keyboard attached to your
593 machine. Note that this disables any other (ie. PS/2) keyboard
594 support, even if your machine is physically capable of using both at
595 the same time.
596
597 If you use an ADB keyboard (4 pin connector), say Y here.
598 If you use a PS/2 keyboard (6 pin connector), say N here.
599
600config HPDCA
601 tristate "HP DCA serial support"
602 depends on DIO && SERIAL_8250
603 help
604 If you want to use the internal "DCA" serial ports on an HP300
605 machine, say Y here.
606
607config HPAPCI
608 tristate "HP APCI serial support"
609 depends on HP300 && SERIAL_8250 && EXPERIMENTAL
610 help
611 If you want to use the internal "APCI" serial ports on an HP400
612 machine, say Y here.
613
614config MVME147_SCC
615 bool "SCC support for MVME147 serial ports"
616 depends on MVME147
617 help
618 This is the driver for the serial ports on the Motorola MVME147
619 boards. Everyone using one of these boards should say Y here.
620
621config SERIAL167
622 bool "CD2401 support for MVME166/7 serial ports"
623 depends on MVME16x
624 help
625 This is the driver for the serial ports on the Motorola MVME166,
626 167, and 172 boards. Everyone using one of these boards should say
627 Y here.
628
629config MVME162_SCC
630 bool "SCC support for MVME162 serial ports"
631 depends on MVME16x
632 help
633 This is the driver for the serial ports on the Motorola MVME162 and
634 172 boards. Everyone using one of these boards should say Y here.
635
636config BVME6000_SCC
637 bool "SCC support for BVME6000 serial ports"
638 depends on BVME6000
639 help
640 This is the driver for the serial ports on the BVME4000 and BVME6000
641 boards from BVM Ltd. Everyone using one of these boards should say
642 Y here.
643
644config DN_SERIAL
645 bool "Support for DN serial port (dummy)"
646 depends on APOLLO
647
648config SERIAL_CONSOLE
649 bool "Support for serial port console"
650 depends on (AMIGA || ATARI || MAC || SUN3 || SUN3X || VME || APOLLO) && (ATARI_MFPSER=y || ATARI_SCC=y || ATARI_MIDI=y || MAC_SCC=y || AMIGA_BUILTIN_SERIAL=y || GVPIOEXT=y || MULTIFACE_III_TTY=y || SERIAL=y || MVME147_SCC || SERIAL167 || MVME162_SCC || BVME6000_SCC || DN_SERIAL)
651 ---help---
652 If you say Y here, it will be possible to use a serial port as the
653 system console (the system console is the device which receives all
654 kernel messages and warnings and which allows logins in single user
655 mode). This could be useful if some terminal or printer is connected
656 to that serial port.
657
658 Even if you say Y here, the currently visible virtual console
659 (/dev/tty0) will still be used as the system console by default, but
660 you can alter that using a kernel command line option such as
661 "console=ttyS1". (Try "man bootparam" or see the documentation of
662 your boot loader (lilo or loadlin) about how to pass options to the
663 kernel at boot time.)
664
665 If you don't have a VGA card installed and you say Y here, the
666 kernel will automatically use the first serial line, /dev/ttyS0, as
667 system console.
668
669 If unsure, say N.
670
671endmenu
672
673source "fs/Kconfig"
674
675source "arch/m68k/Kconfig.debug"
676
677source "security/Kconfig"
678
679source "crypto/Kconfig"
680
681source "lib/Kconfig"