Root/arch/m68k/Kconfig

1config M68K
2    bool
3    default y
4    select HAVE_AOUT
5    select HAVE_IDE
6    select GENERIC_ATOMIC64
7
8config MMU
9    bool
10    default y
11
12config RWSEM_GENERIC_SPINLOCK
13    bool
14    default y
15
16config RWSEM_XCHGADD_ALGORITHM
17    bool
18
19config ARCH_HAS_ILOG2_U32
20    bool
21    default n
22
23config ARCH_HAS_ILOG2_U64
24    bool
25    default n
26
27config GENERIC_HWEIGHT
28    bool
29    default y
30
31config GENERIC_CALIBRATE_DELAY
32    bool
33    default y
34
35config TIME_LOW_RES
36    bool
37    default y
38
39config GENERIC_IOMAP
40    bool
41    default y
42
43config ARCH_MAY_HAVE_PC_FDC
44    bool
45    depends on BROKEN && (Q40 || SUN3X)
46    default y
47
48config NO_IOPORT
49    def_bool y
50
51config NO_DMA
52    def_bool SUN3
53
54config HZ
55    int
56    default 100
57
58config ARCH_USES_GETTIMEOFFSET
59    def_bool y
60
61source "init/Kconfig"
62
63source "kernel/Kconfig.freezer"
64
65menu "Platform dependent setup"
66
67config EISA
68    bool
69    ---help---
70      The Extended Industry Standard Architecture (EISA) bus was
71      developed as an open alternative to the IBM MicroChannel bus.
72
73      The EISA bus provided some of the features of the IBM MicroChannel
74      bus while maintaining backward compatibility with cards made for
75      the older ISA bus. The EISA bus saw limited use between 1988 and
76      1995 when it was made obsolete by the PCI bus.
77
78      Say Y here if you are building a kernel for an EISA-based machine.
79
80      Otherwise, say N.
81
82config MCA
83    bool
84    help
85      MicroChannel Architecture is found in some IBM PS/2 machines and
86      laptops. It is a bus system similar to PCI or ISA. See
87      <file:Documentation/mca.txt> (and especially the web page given
88      there) before attempting to build an MCA bus kernel.
89
90config PCMCIA
91    tristate
92    ---help---
93      Say Y here if you want to attach PCMCIA- or PC-cards to your Linux
94      computer. These are credit-card size devices such as network cards,
95      modems or hard drives often used with laptops computers. There are
96      actually two varieties of these cards: the older 16 bit PCMCIA cards
97      and the newer 32 bit CardBus cards. If you want to use CardBus
98      cards, you need to say Y here and also to "CardBus support" below.
99
100      To use your PC-cards, you will need supporting software from David
101      Hinds' pcmcia-cs package (see the file <file:Documentation/Changes>
102      for location). Please also read the PCMCIA-HOWTO, available from
103      <http://www.tldp.org/docs.html#howto>.
104
105      To compile this driver as modules, choose M here: the
106      modules will be called pcmcia_core and ds.
107
108config AMIGA
109    bool "Amiga support"
110    select MMU_MOTOROLA if MMU
111    help
112      This option enables support for the Amiga series of computers. If
113      you plan to use this kernel on an Amiga, say Y here and browse the
114      material available in <file:Documentation/m68k>; otherwise say N.
115
116config ATARI
117    bool "Atari support"
118    select MMU_MOTOROLA if MMU
119    help
120      This option enables support for the 68000-based Atari series of
121      computers (including the TT, Falcon and Medusa). If you plan to use
122      this kernel on an Atari, say Y here and browse the material
123      available in <file:Documentation/m68k>; otherwise say N.
124
125config MAC
126    bool "Macintosh support"
127    select MMU_MOTOROLA if MMU
128    help
129      This option enables support for the Apple Macintosh series of
130      computers (yes, there is experimental support now, at least for part
131      of the series).
132
133      Say N unless you're willing to code the remaining necessary support.
134      ;)
135
136config NUBUS
137    bool
138    depends on MAC
139    default y
140
141config M68K_L2_CACHE
142    bool
143    depends on MAC
144    default y
145
146config APOLLO
147    bool "Apollo support"
148    select MMU_MOTOROLA if MMU
149    help
150      Say Y here if you want to run Linux on an MC680x0-based Apollo
151      Domain workstation such as the DN3500.
152
153config VME
154    bool "VME (Motorola and BVM) support"
155    select MMU_MOTOROLA if MMU
156    help
157      Say Y here if you want to build a kernel for a 680x0 based VME
158      board. Boards currently supported include Motorola boards MVME147,
159      MVME162, MVME166, MVME167, MVME172, and MVME177. BVME4000 and
160      BVME6000 boards from BVM Ltd are also supported.
161
162config MVME147
163    bool "MVME147 support"
164    depends on VME
165    help
166      Say Y to include support for early Motorola VME boards. This will
167      build a kernel which can run on MVME147 single-board computers. If
168      you select this option you will have to select the appropriate
169      drivers for SCSI, Ethernet and serial ports later on.
170
171config MVME16x
172    bool "MVME162, 166 and 167 support"
173    depends on VME
174    help
175      Say Y to include support for Motorola VME boards. This will build a
176      kernel which can run on MVME162, MVME166, MVME167, MVME172, and
177      MVME177 boards. If you select this option you will have to select
178      the appropriate drivers for SCSI, Ethernet and serial ports later
179      on.
180
181config BVME6000
182    bool "BVME4000 and BVME6000 support"
183    depends on VME
184    help
185      Say Y to include support for VME boards from BVM Ltd. This will
186      build a kernel which can run on BVME4000 and BVME6000 boards. If
187      you select this option you will have to select the appropriate
188      drivers for SCSI, Ethernet and serial ports later on.
189
190config HP300
191    bool "HP9000/300 and HP9000/400 support"
192    select MMU_MOTOROLA if MMU
193    help
194      This option enables support for the HP9000/300 and HP9000/400 series
195      of workstations. Support for these machines is still somewhat
196      experimental. If you plan to try to use the kernel on such a machine
197      say Y here.
198      Everybody else says N.
199
200config DIO
201    bool "DIO bus support"
202    depends on HP300
203    default y
204    help
205      Say Y here to enable support for the "DIO" expansion bus used in
206      HP300 machines. If you are using such a system you almost certainly
207      want this.
208
209config SUN3X
210    bool "Sun3x support"
211    select MMU_MOTOROLA if MMU
212    select M68030
213    help
214      This option enables support for the Sun 3x series of workstations.
215      Be warned that this support is very experimental.
216      Note that Sun 3x kernels are not compatible with Sun 3 hardware.
217      General Linux information on the Sun 3x series (now discontinued)
218      is at <http://www.angelfire.com/ca2/tech68k/sun3.html>.
219
220      If you don't want to compile a kernel for a Sun 3x, say N.
221
222config Q40
223    bool "Q40/Q60 support"
224    select MMU_MOTOROLA if MMU
225    help
226      The Q40 is a Motorola 68040-based successor to the Sinclair QL
227      manufactured in Germany. There is an official Q40 home page at
228      <http://www.q40.de/>. This option enables support for the Q40 and
229      Q60. Select your CPU below. For 68LC060 don't forget to enable FPU
230      emulation.
231
232config SUN3
233    bool "Sun3 support"
234    depends on !MMU_MOTOROLA
235    select MMU_SUN3 if MMU
236    select M68020
237    help
238      This option enables support for the Sun 3 series of workstations
239      (3/50, 3/60, 3/1xx, 3/2xx systems). Enabling this option requires
240      that all other hardware types must be disabled, as Sun 3 kernels
241      are incompatible with all other m68k targets (including Sun 3x!).
242
243      If you don't want to compile a kernel exclusively for a Sun 3, say N.
244
245comment "Processor type"
246
247config M68020
248    bool "68020 support"
249    help
250      If you anticipate running this kernel on a computer with a MC68020
251      processor, say Y. Otherwise, say N. Note that the 68020 requires a
252      68851 MMU (Memory Management Unit) to run Linux/m68k, except on the
253      Sun 3, which provides its own version.
254
255config M68030
256    bool "68030 support"
257    depends on !MMU_SUN3
258    help
259      If you anticipate running this kernel on a computer with a MC68030
260      processor, say Y. Otherwise, say N. Note that a MC68EC030 will not
261      work, as it does not include an MMU (Memory Management Unit).
262
263config M68040
264    bool "68040 support"
265    depends on !MMU_SUN3
266    help
267      If you anticipate running this kernel on a computer with a MC68LC040
268      or MC68040 processor, say Y. Otherwise, say N. Note that an
269      MC68EC040 will not work, as it does not include an MMU (Memory
270      Management Unit).
271
272config M68060
273    bool "68060 support"
274    depends on !MMU_SUN3
275    help
276      If you anticipate running this kernel on a computer with a MC68060
277      processor, say Y. Otherwise, say N.
278
279config MMU_MOTOROLA
280    bool
281
282config MMU_SUN3
283    bool
284    depends on MMU && !MMU_MOTOROLA
285
286config M68KFPU_EMU
287    bool "Math emulation support (EXPERIMENTAL)"
288    depends on EXPERIMENTAL
289    help
290      At some point in the future, this will cause floating-point math
291      instructions to be emulated by the kernel on machines that lack a
292      floating-point math coprocessor. Thrill-seekers and chronically
293      sleep-deprived psychotic hacker types can say Y now, everyone else
294      should probably wait a while.
295
296config M68KFPU_EMU_EXTRAPREC
297    bool "Math emulation extra precision"
298    depends on M68KFPU_EMU
299    help
300      The fpu uses normally a few bit more during calculations for
301      correct rounding, the emulator can (often) do the same but this
302      extra calculation can cost quite some time, so you can disable
303      it here. The emulator will then "only" calculate with a 64 bit
304      mantissa and round slightly incorrect, what is more than enough
305      for normal usage.
306
307config M68KFPU_EMU_ONLY
308    bool "Math emulation only kernel"
309    depends on M68KFPU_EMU
310    help
311      This option prevents any floating-point instructions from being
312      compiled into the kernel, thereby the kernel doesn't save any
313      floating point context anymore during task switches, so this
314      kernel will only be usable on machines without a floating-point
315      math coprocessor. This makes the kernel a bit faster as no tests
316      needs to be executed whether a floating-point instruction in the
317      kernel should be executed or not.
318
319config ADVANCED
320    bool "Advanced configuration options"
321    ---help---
322      This gives you access to some advanced options for the CPU. The
323      defaults should be fine for most users, but these options may make
324      it possible for you to improve performance somewhat if you know what
325      you are doing.
326
327      Note that the answer to this question won't directly affect the
328      kernel: saying N will just cause the configurator to skip all
329      the questions about these options.
330
331      Most users should say N to this question.
332
333config RMW_INSNS
334    bool "Use read-modify-write instructions"
335    depends on ADVANCED
336    ---help---
337      This allows to use certain instructions that work with indivisible
338      read-modify-write bus cycles. While this is faster than the
339      workaround of disabling interrupts, it can conflict with DMA
340      ( = direct memory access) on many Amiga systems, and it is also said
341      to destabilize other machines. It is very likely that this will
342      cause serious problems on any Amiga or Atari Medusa if set. The only
343      configuration where it should work are 68030-based Ataris, where it
344      apparently improves performance. But you've been warned! Unless you
345      really know what you are doing, say N. Try Y only if you're quite
346      adventurous.
347
348config SINGLE_MEMORY_CHUNK
349    bool "Use one physical chunk of memory only" if ADVANCED && !SUN3
350    default y if SUN3
351    select NEED_MULTIPLE_NODES
352    help
353      Ignore all but the first contiguous chunk of physical memory for VM
354      purposes. This will save a few bytes kernel size and may speed up
355      some operations. Say N if not sure.
356
357config 060_WRITETHROUGH
358    bool "Use write-through caching for 68060 supervisor accesses"
359    depends on ADVANCED && M68060
360    ---help---
361      The 68060 generally uses copyback caching of recently accessed data.
362      Copyback caching means that memory writes will be held in an on-chip
363      cache and only written back to memory some time later. Saying Y
364      here will force supervisor (kernel) accesses to use writethrough
365      caching. Writethrough caching means that data is written to memory
366      straight away, so that cache and memory data always agree.
367      Writethrough caching is less efficient, but is needed for some
368      drivers on 68060 based systems where the 68060 bus snooping signal
369      is hardwired on. The 53c710 SCSI driver is known to suffer from
370      this problem.
371
372config ARCH_DISCONTIGMEM_ENABLE
373    def_bool !SINGLE_MEMORY_CHUNK
374
375config NODES_SHIFT
376    int
377    default "3"
378    depends on !SINGLE_MEMORY_CHUNK
379
380source "mm/Kconfig"
381
382endmenu
383
384menu "General setup"
385
386source "fs/Kconfig.binfmt"
387
388config ZORRO
389    bool "Amiga Zorro (AutoConfig) bus support"
390    depends on AMIGA
391    help
392      This enables support for the Zorro bus in the Amiga. If you have
393      expansion cards in your Amiga that conform to the Amiga
394      AutoConfig(tm) specification, say Y, otherwise N. Note that even
395      expansion cards that do not fit in the Zorro slots but fit in e.g.
396      the CPU slot may fall in this category, so you have to say Y to let
397      Linux use these.
398
399config AMIGA_PCMCIA
400    bool "Amiga 1200/600 PCMCIA support (EXPERIMENTAL)"
401    depends on AMIGA && EXPERIMENTAL
402    help
403      Include support in the kernel for pcmcia on Amiga 1200 and Amiga
404      600. If you intend to use pcmcia cards say Y; otherwise say N.
405
406config STRAM_PROC
407    bool "ST-RAM statistics in /proc"
408    depends on ATARI
409    help
410      Say Y here to report ST-RAM usage statistics in /proc/stram.
411
412config HEARTBEAT
413    bool "Use power LED as a heartbeat" if AMIGA || APOLLO || ATARI || MAC ||Q40
414    default y if !AMIGA && !APOLLO && !ATARI && !MAC && !Q40 && HP300
415    help
416      Use the power-on LED on your machine as a load meter. The exact
417      behavior is platform-dependent, but normally the flash frequency is
418      a hyperbolic function of the 5-minute load average.
419
420# We have a dedicated heartbeat LED. :-)
421config PROC_HARDWARE
422    bool "/proc/hardware support"
423    help
424      Say Y here to support the /proc/hardware file, which gives you
425      access to information about the machine you're running on,
426      including the model, CPU, MMU, clock speed, BogoMIPS rating,
427      and memory size.
428
429config ISA
430    bool
431    depends on Q40 || AMIGA_PCMCIA
432    default y
433    help
434      Find out whether you have ISA slots on your motherboard. ISA is the
435      name of a bus system, i.e. the way the CPU talks to the other stuff
436      inside your box. Other bus systems are PCI, EISA, MicroChannel
437      (MCA) or VESA. ISA is an older system, now being displaced by PCI;
438      newer boards don't support it. If you have ISA, say Y, otherwise N.
439
440config GENERIC_ISA_DMA
441    bool
442    depends on Q40 || AMIGA_PCMCIA
443    default y
444
445config ZONE_DMA
446    bool
447    default y
448
449source "drivers/pci/Kconfig"
450
451source "drivers/zorro/Kconfig"
452
453endmenu
454
455source "net/Kconfig"
456
457source "drivers/Kconfig"
458
459menu "Character devices"
460
461config ATARI_MFPSER
462    tristate "Atari MFP serial support"
463    depends on ATARI
464    ---help---
465      If you like to use the MFP serial ports ("Modem1", "Serial1") under
466      Linux, say Y. The driver equally supports all kinds of MFP serial
467      ports and automatically detects whether Serial1 is available.
468
469      To compile this driver as a module, choose M here.
470
471      Note for Falcon users: You also have an MFP port, it's just not
472      wired to the outside... But you could use the port under Linux.
473
474config ATARI_MIDI
475    tristate "Atari MIDI serial support"
476    depends on ATARI
477    help
478      If you want to use your Atari's MIDI port in Linux, say Y.
479
480      To compile this driver as a module, choose M here.
481
482config ATARI_DSP56K
483    tristate "Atari DSP56k support (EXPERIMENTAL)"
484    depends on ATARI && EXPERIMENTAL
485    help
486      If you want to be able to use the DSP56001 in Falcons, say Y. This
487      driver is still experimental, and if you don't know what it is, or
488      if you don't have this processor, just say N.
489
490      To compile this driver as a module, choose M here.
491
492config AMIGA_BUILTIN_SERIAL
493    tristate "Amiga builtin serial support"
494    depends on AMIGA
495    help
496      If you want to use your Amiga's built-in serial port in Linux,
497      answer Y.
498
499      To compile this driver as a module, choose M here.
500
501config MULTIFACE_III_TTY
502    tristate "Multiface Card III serial support"
503    depends on AMIGA
504    help
505      If you want to use a Multiface III card's serial port in Linux,
506      answer Y.
507
508      To compile this driver as a module, choose M here.
509
510config GVPIOEXT
511    tristate "GVP IO-Extender support"
512    depends on PARPORT=n && ZORRO
513    help
514      If you want to use a GVP IO-Extender serial card in Linux, say Y.
515      Otherwise, say N.
516
517config GVPIOEXT_LP
518    tristate "GVP IO-Extender parallel printer support"
519    depends on GVPIOEXT
520    help
521      Say Y to enable driving a printer from the parallel port on your
522      GVP IO-Extender card, N otherwise.
523
524config GVPIOEXT_PLIP
525    tristate "GVP IO-Extender PLIP support"
526    depends on GVPIOEXT
527    help
528      Say Y to enable doing IP over the parallel port on your GVP
529      IO-Extender card, N otherwise.
530
531config MAC_HID
532    bool
533    depends on INPUT_ADBHID
534    default y
535
536config HPDCA
537    tristate "HP DCA serial support"
538    depends on DIO && SERIAL_8250
539    help
540      If you want to use the internal "DCA" serial ports on an HP300
541      machine, say Y here.
542
543config HPAPCI
544    tristate "HP APCI serial support"
545    depends on HP300 && SERIAL_8250 && EXPERIMENTAL
546    help
547      If you want to use the internal "APCI" serial ports on an HP400
548      machine, say Y here.
549
550config MVME147_SCC
551    bool "SCC support for MVME147 serial ports"
552    depends on MVME147 && BROKEN
553    help
554      This is the driver for the serial ports on the Motorola MVME147
555      boards. Everyone using one of these boards should say Y here.
556
557config SERIAL167
558    bool "CD2401 support for MVME166/7 serial ports"
559    depends on MVME16x
560    help
561      This is the driver for the serial ports on the Motorola MVME166,
562      167, and 172 boards. Everyone using one of these boards should say
563      Y here.
564
565config MVME162_SCC
566    bool "SCC support for MVME162 serial ports"
567    depends on MVME16x && BROKEN
568    help
569      This is the driver for the serial ports on the Motorola MVME162 and
570      172 boards. Everyone using one of these boards should say Y here.
571
572config BVME6000_SCC
573    bool "SCC support for BVME6000 serial ports"
574    depends on BVME6000 && BROKEN
575    help
576      This is the driver for the serial ports on the BVME4000 and BVME6000
577      boards from BVM Ltd. Everyone using one of these boards should say
578      Y here.
579
580config DN_SERIAL
581    bool "Support for DN serial port (dummy)"
582    depends on APOLLO
583
584config SERIAL_CONSOLE
585    bool "Support for serial port console"
586    depends on (AMIGA || ATARI || SUN3 || SUN3X || VME || APOLLO) && (ATARI_MFPSER=y || ATARI_MIDI=y || AMIGA_BUILTIN_SERIAL=y || GVPIOEXT=y || MULTIFACE_III_TTY=y || SERIAL=y || MVME147_SCC || SERIAL167 || MVME162_SCC || BVME6000_SCC || DN_SERIAL)
587    ---help---
588      If you say Y here, it will be possible to use a serial port as the
589      system console (the system console is the device which receives all
590      kernel messages and warnings and which allows logins in single user
591      mode). This could be useful if some terminal or printer is connected
592      to that serial port.
593
594      Even if you say Y here, the currently visible virtual console
595      (/dev/tty0) will still be used as the system console by default, but
596      you can alter that using a kernel command line option such as
597      "console=ttyS1". (Try "man bootparam" or see the documentation of
598      your boot loader (lilo or loadlin) about how to pass options to the
599      kernel at boot time.)
600
601      If you don't have a VGA card installed and you say Y here, the
602      kernel will automatically use the first serial line, /dev/ttyS0, as
603      system console.
604
605      If unsure, say N.
606
607endmenu
608
609source "fs/Kconfig"
610
611source "arch/m68k/Kconfig.debug"
612
613source "security/Kconfig"
614
615source "crypto/Kconfig"
616
617source "lib/Kconfig"
618

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