2 # For a description of the syntax of this configuration file,
3 # see Documentation/kbuild/kconfig-language.txt.
15 config RWSEM_GENERIC_SPINLOCK
19 config RWSEM_XCHGADD_ALGORITHM
22 config ARCH_HAS_ILOG2_U32
26 config ARCH_HAS_ILOG2_U64
30 config GENERIC_HWEIGHT
34 config GENERIC_CALIBRATE_DELAY
46 config ARCH_MAY_HAVE_PC_FDC
48 depends on BROKEN && (Q40 || SUN3X)
61 mainmenu "Linux/68k Kernel Configuration"
65 menu "Platform dependent setup"
70 The Extended Industry Standard Architecture (EISA) bus was
71 developed as an open alternative to the IBM MicroChannel bus.
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.
78 Say Y here if you are building a kernel for an EISA-based machine.
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.
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.
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>.
105 To compile this driver as modules, choose M here: the
106 modules will be called pcmcia_core and ds.
111 select MMU_SUN3 if MMU
113 This option enables support for the Sun 3 series of workstations
114 (3/50, 3/60, 3/1xx, 3/2xx systems). Enabling this option requires
115 that all other hardware types must be disabled, as Sun 3 kernels
116 are incompatible with all other m68k targets (including Sun 3x!).
118 If you don't want to compile a kernel exclusively for a Sun 3, say N.
124 This option enables support for the Amiga series of computers. If
125 you plan to use this kernel on an Amiga, say Y here and browse the
126 material available in <file:Documentation/m68k>; otherwise say N.
132 This option enables support for the 68000-based Atari series of
133 computers (including the TT, Falcon and Medusa). If you plan to use
134 this kernel on an Atari, say Y here and browse the material
135 available in <file:Documentation/m68k>; otherwise say N.
139 depends on ATARI && BROKEN
141 This option enables support for the Hades Atari clone. If you plan
142 to use this kernel on a Hades, say Y here; otherwise say N.
149 Find out whether you have a PCI motherboard. PCI is the name of a
150 bus system, i.e. the way the CPU talks to the other stuff inside
151 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
152 VESA. If you have PCI, say Y, otherwise N.
155 bool "Macintosh support"
158 This option enables support for the Apple Macintosh series of
159 computers (yes, there is experimental support now, at least for part
162 Say N unless you're willing to code the remaining necessary support.
176 bool "Apollo support"
179 Say Y here if you want to run Linux on an MC680x0-based Apollo
180 Domain workstation such as the DN3500.
183 bool "VME (Motorola and BVM) support"
186 Say Y here if you want to build a kernel for a 680x0 based VME
187 board. Boards currently supported include Motorola boards MVME147,
188 MVME162, MVME166, MVME167, MVME172, and MVME177. BVME4000 and
189 BVME6000 boards from BVM Ltd are also supported.
192 bool "MVME147 support"
195 Say Y to include support for early Motorola VME boards. This will
196 build a kernel which can run on MVME147 single-board computers. If
197 you select this option you will have to select the appropriate
198 drivers for SCSI, Ethernet and serial ports later on.
201 bool "MVME162, 166 and 167 support"
204 Say Y to include support for Motorola VME boards. This will build a
205 kernel which can run on MVME162, MVME166, MVME167, MVME172, and
206 MVME177 boards. If you select this option you will have to select
207 the appropriate drivers for SCSI, Ethernet and serial ports later
211 bool "BVME4000 and BVME6000 support"
214 Say Y to include support for VME boards from BVM Ltd. This will
215 build a kernel which can run on BVME4000 and BVME6000 boards. If
216 you select this option you will have to select the appropriate
217 drivers for SCSI, Ethernet and serial ports later on.
220 bool "HP9000/300 and HP9000/400 support"
223 This option enables support for the HP9000/300 and HP9000/400 series
224 of workstations. Support for these machines is still somewhat
225 experimental. If you plan to try to use the kernel on such a machine
227 Everybody else says N.
230 bool "DIO bus support"
234 Say Y here to enable support for the "DIO" expansion bus used in
235 HP300 machines. If you are using such a system you almost certainly
243 This option enables support for the Sun 3x series of workstations.
244 Be warned that this support is very experimental.
245 Note that Sun 3x kernels are not compatible with Sun 3 hardware.
246 General Linux information on the Sun 3x series (now discontinued)
247 is at <http://www.angelfire.com/ca2/tech68k/sun3.html>.
249 If you don't want to compile a kernel for a Sun 3x, say N.
252 bool "Q40/Q60 support"
255 The Q40 is a Motorola 68040-based successor to the Sinclair QL
256 manufactured in Germany. There is an official Q40 home page at
257 <http://www.q40.de/>. This option enables support for the Q40 and
258 Q60. Select your CPU below. For 68LC060 don't forget to enable FPU
261 comment "Processor type"
266 If you anticipate running this kernel on a computer with a MC68020
267 processor, say Y. Otherwise, say N. Note that the 68020 requires a
268 68851 MMU (Memory Management Unit) to run Linux/m68k, except on the
269 Sun 3, which provides its own version.
275 If you anticipate running this kernel on a computer with a MC68030
276 processor, say Y. Otherwise, say N. Note that a MC68EC030 will not
277 work, as it does not include an MMU (Memory Management Unit).
283 If you anticipate running this kernel on a computer with a MC68LC040
284 or MC68040 processor, say Y. Otherwise, say N. Note that an
285 MC68EC040 will not work, as it does not include an MMU (Memory
292 If you anticipate running this kernel on a computer with a MC68060
293 processor, say Y. Otherwise, say N.
297 depends on MMU && !MMU_SUN3
304 bool "Math emulation support (EXPERIMENTAL)"
305 depends on EXPERIMENTAL
307 At some point in the future, this will cause floating-point math
308 instructions to be emulated by the kernel on machines that lack a
309 floating-point math coprocessor. Thrill-seekers and chronically
310 sleep-deprived psychotic hacker types can say Y now, everyone else
311 should probably wait a while.
313 config M68KFPU_EMU_EXTRAPREC
314 bool "Math emulation extra precision"
315 depends on M68KFPU_EMU
317 The fpu uses normally a few bit more during calculations for
318 correct rounding, the emulator can (often) do the same but this
319 extra calculation can cost quite some time, so you can disable
320 it here. The emulator will then "only" calculate with a 64 bit
321 mantissa and round slightly incorrect, what is more then enough
324 config M68KFPU_EMU_ONLY
325 bool "Math emulation only kernel"
326 depends on M68KFPU_EMU
328 This option prevents any floating-point instructions from being
329 compiled into the kernel, thereby the kernel doesn't save any
330 floating point context anymore during task switches, so this
331 kernel will only be usable on machines without a floating-point
332 math coprocessor. This makes the kernel a bit faster as no tests
333 needs to be executed whether a floating-point instruction in the
334 kernel should be executed or not.
337 bool "Advanced configuration options"
339 This gives you access to some advanced options for the CPU. The
340 defaults should be fine for most users, but these options may make
341 it possible for you to improve performance somewhat if you know what
344 Note that the answer to this question won't directly affect the
345 kernel: saying N will just cause the configurator to skip all
346 the questions about these options.
348 Most users should say N to this question.
351 bool "Use read-modify-write instructions"
354 This allows to use certain instructions that work with indivisible
355 read-modify-write bus cycles. While this is faster than the
356 workaround of disabling interrupts, it can conflict with DMA
357 ( = direct memory access) on many Amiga systems, and it is also said
358 to destabilize other machines. It is very likely that this will
359 cause serious problems on any Amiga or Atari Medusa if set. The only
360 configuration where it should work are 68030-based Ataris, where it
361 apparently improves performance. But you've been warned! Unless you
362 really know what you are doing, say N. Try Y only if you're quite
365 config SINGLE_MEMORY_CHUNK
366 bool "Use one physical chunk of memory only" if ADVANCED && !SUN3
368 select NEED_MULTIPLE_NODES
370 Ignore all but the first contiguous chunk of physical memory for VM
371 purposes. This will save a few bytes kernel size and may speed up
372 some operations. Say N if not sure.
374 config 060_WRITETHROUGH
375 bool "Use write-through caching for 68060 supervisor accesses"
376 depends on ADVANCED && M68060
378 The 68060 generally uses copyback caching of recently accessed data.
379 Copyback caching means that memory writes will be held in an on-chip
380 cache and only written back to memory some time later. Saying Y
381 here will force supervisor (kernel) accesses to use writethrough
382 caching. Writethrough caching means that data is written to memory
383 straight away, so that cache and memory data always agree.
384 Writethrough caching is less efficient, but is needed for some
385 drivers on 68060 based systems where the 68060 bus snooping signal
386 is hardwired on. The 53c710 SCSI driver is known to suffer from
389 config ARCH_DISCONTIGMEM_ENABLE
390 def_bool !SINGLE_MEMORY_CHUNK
395 depends on !SINGLE_MEMORY_CHUNK
403 source "fs/Kconfig.binfmt"
406 bool "Amiga Zorro (AutoConfig) bus support"
409 This enables support for the Zorro bus in the Amiga. If you have
410 expansion cards in your Amiga that conform to the Amiga
411 AutoConfig(tm) specification, say Y, otherwise N. Note that even
412 expansion cards that do not fit in the Zorro slots but fit in e.g.
413 the CPU slot may fall in this category, so you have to say Y to let
417 bool "Amiga 1200/600 PCMCIA support (EXPERIMENTAL)"
418 depends on AMIGA && EXPERIMENTAL
420 Include support in the kernel for pcmcia on Amiga 1200 and Amiga
421 600. If you intend to use pcmcia cards say Y; otherwise say N.
424 bool "ST-RAM statistics in /proc"
427 Say Y here to report ST-RAM usage statistics in /proc/stram.
430 bool "Use power LED as a heartbeat" if AMIGA || APOLLO || ATARI || MAC ||Q40
431 default y if !AMIGA && !APOLLO && !ATARI && !MAC && !Q40 && HP300
433 Use the power-on LED on your machine as a load meter. The exact
434 behavior is platform-dependent, but normally the flash frequency is
435 a hyperbolic function of the 5-minute load average.
437 # We have a dedicated heartbeat LED. :-)
439 bool "/proc/hardware support"
441 Say Y here to support the /proc/hardware file, which gives you
442 access to information about the machine you're running on,
443 including the model, CPU, MMU, clock speed, BogoMIPS rating,
448 depends on Q40 || AMIGA_PCMCIA || GG2
451 Find out whether you have ISA slots on your motherboard. ISA is the
452 name of a bus system, i.e. the way the CPU talks to the other stuff
453 inside your box. Other bus systems are PCI, EISA, MicroChannel
454 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
455 newer boards don't support it. If you have ISA, say Y, otherwise N.
457 config GENERIC_ISA_DMA
459 depends on Q40 || AMIGA_PCMCIA || GG2
466 source "drivers/pci/Kconfig"
468 source "drivers/zorro/Kconfig"
474 source "drivers/Kconfig"
476 menu "Character devices"
479 tristate "Atari MFP serial support"
482 If you like to use the MFP serial ports ("Modem1", "Serial1") under
483 Linux, say Y. The driver equally supports all kinds of MFP serial
484 ports and automatically detects whether Serial1 is available.
486 To compile this driver as a module, choose M here.
488 Note for Falcon users: You also have an MFP port, it's just not
489 wired to the outside... But you could use the port under Linux.
492 tristate "Atari MIDI serial support"
495 If you want to use your Atari's MIDI port in Linux, say Y.
497 To compile this driver as a module, choose M here.
500 tristate "Atari DSP56k support (EXPERIMENTAL)"
501 depends on ATARI && EXPERIMENTAL
503 If you want to be able to use the DSP56001 in Falcons, say Y. This
504 driver is still experimental, and if you don't know what it is, or
505 if you don't have this processor, just say N.
507 To compile this driver as a module, choose M here.
509 config AMIGA_BUILTIN_SERIAL
510 tristate "Amiga builtin serial support"
513 If you want to use your Amiga's built-in serial port in Linux,
516 To compile this driver as a module, choose M here.
518 config MULTIFACE_III_TTY
519 tristate "Multiface Card III serial support"
522 If you want to use a Multiface III card's serial port in Linux,
525 To compile this driver as a module, choose M here.
528 tristate "GVP IO-Extender support"
529 depends on PARPORT=n && ZORRO
531 If you want to use a GVP IO-Extender serial card in Linux, say Y.
535 tristate "GVP IO-Extender parallel printer support"
538 Say Y to enable driving a printer from the parallel port on your
539 GVP IO-Extender card, N otherwise.
542 tristate "GVP IO-Extender PLIP support"
545 Say Y to enable doing IP over the parallel port on your GVP
546 IO-Extender card, N otherwise.
549 tristate "Macintosh serial support"
554 depends on INPUT_ADBHID
558 tristate "HP DCA serial support"
559 depends on DIO && SERIAL_8250
561 If you want to use the internal "DCA" serial ports on an HP300
565 tristate "HP APCI serial support"
566 depends on HP300 && SERIAL_8250 && EXPERIMENTAL
568 If you want to use the internal "APCI" serial ports on an HP400
572 bool "SCC support for MVME147 serial ports"
575 This is the driver for the serial ports on the Motorola MVME147
576 boards. Everyone using one of these boards should say Y here.
579 bool "CD2401 support for MVME166/7 serial ports"
582 This is the driver for the serial ports on the Motorola MVME166,
583 167, and 172 boards. Everyone using one of these boards should say
587 bool "SCC support for MVME162 serial ports"
590 This is the driver for the serial ports on the Motorola MVME162 and
591 172 boards. Everyone using one of these boards should say Y here.
594 bool "SCC support for BVME6000 serial ports"
597 This is the driver for the serial ports on the BVME4000 and BVME6000
598 boards from BVM Ltd. Everyone using one of these boards should say
602 bool "Support for DN serial port (dummy)"
605 config SERIAL_CONSOLE
606 bool "Support for serial port console"
607 depends on (AMIGA || ATARI || MAC || SUN3 || SUN3X || VME || APOLLO) && (ATARI_MFPSER=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)
609 If you say Y here, it will be possible to use a serial port as the
610 system console (the system console is the device which receives all
611 kernel messages and warnings and which allows logins in single user
612 mode). This could be useful if some terminal or printer is connected
615 Even if you say Y here, the currently visible virtual console
616 (/dev/tty0) will still be used as the system console by default, but
617 you can alter that using a kernel command line option such as
618 "console=ttyS1". (Try "man bootparam" or see the documentation of
619 your boot loader (lilo or loadlin) about how to pass options to the
620 kernel at boot time.)
622 If you don't have a VGA card installed and you say Y here, the
623 kernel will automatically use the first serial line, /dev/ttyS0, as
632 source "arch/m68k/Kconfig.debug"
634 source "security/Kconfig"
636 source "crypto/Kconfig"