2 # For a description of the syntax of this configuration file,
3 # see Documentation/kbuild/kconfig-language.txt.
13 config RWSEM_GENERIC_SPINLOCK
17 config RWSEM_XCHGADD_ALGORITHM
20 config GENERIC_HWEIGHT
24 config GENERIC_CALIBRATE_DELAY
32 config ARCH_MAY_HAVE_PC_FDC
34 depends on Q40 || (BROKEN && SUN3X)
37 mainmenu "Linux/68k Kernel Configuration"
41 menu "Platform dependent setup"
46 The Extended Industry Standard Architecture (EISA) bus was
47 developed as an open alternative to the IBM MicroChannel bus.
49 The EISA bus provided some of the features of the IBM MicroChannel
50 bus while maintaining backward compatibility with cards made for
51 the older ISA bus. The EISA bus saw limited use between 1988 and
52 1995 when it was made obsolete by the PCI bus.
54 Say Y here if you are building a kernel for an EISA-based machine.
61 MicroChannel Architecture is found in some IBM PS/2 machines and
62 laptops. It is a bus system similar to PCI or ISA. See
63 <file:Documentation/mca.txt> (and especially the web page given
64 there) before attempting to build an MCA bus kernel.
69 Say Y here if you want to attach PCMCIA- or PC-cards to your Linux
70 computer. These are credit-card size devices such as network cards,
71 modems or hard drives often used with laptops computers. There are
72 actually two varieties of these cards: the older 16 bit PCMCIA cards
73 and the newer 32 bit CardBus cards. If you want to use CardBus
74 cards, you need to say Y here and also to "CardBus support" below.
76 To use your PC-cards, you will need supporting software from David
77 Hinds' pcmcia-cs package (see the file <file:Documentation/Changes>
78 for location). Please also read the PCMCIA-HOWTO, available from
79 <http://www.tldp.org/docs.html#howto>.
81 To compile this driver as modules, choose M here: the
82 modules will be called pcmcia_core and ds.
87 select MMU_SUN3 if MMU
89 This option enables support for the Sun 3 series of workstations
90 (3/50, 3/60, 3/1xx, 3/2xx systems). Enabling this option requires
91 that all other hardware types must be disabled, as Sun 3 kernels
92 are incompatible with all other m68k targets (including Sun 3x!).
94 If you don't want to compile a kernel exclusively for a Sun 3, say N.
100 This option enables support for the Amiga series of computers. If
101 you plan to use this kernel on an Amiga, say Y here and browse the
102 material available in <file:Documentation/m68k>; otherwise say N.
108 This option enables support for the 68000-based Atari series of
109 computers (including the TT, Falcon and Medusa). If you plan to use
110 this kernel on an Atari, say Y here and browse the material
111 available in <file:Documentation/m68k>; otherwise say N.
115 depends on ATARI && BROKEN
117 This option enables support for the Hades Atari clone. If you plan
118 to use this kernel on a Hades, say Y here; otherwise say N.
125 Find out whether you have a PCI motherboard. PCI is the name of a
126 bus system, i.e. the way the CPU talks to the other stuff inside
127 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
128 VESA. If you have PCI, say Y, otherwise N.
130 The PCI-HOWTO, available from
131 <http://www.tldp.org/docs.html#howto>, contains valuable
132 information about which PCI hardware does work under Linux and which
136 bool "Macintosh support"
139 This option enables support for the Apple Macintosh series of
140 computers (yes, there is experimental support now, at least for part
143 Say N unless you're willing to code the remaining necessary support.
157 bool "Apollo support"
160 Say Y here if you want to run Linux on an MC680x0-based Apollo
161 Domain workstation such as the DN3500.
164 bool "VME (Motorola and BVM) support"
167 Say Y here if you want to build a kernel for a 680x0 based VME
168 board. Boards currently supported include Motorola boards MVME147,
169 MVME162, MVME166, MVME167, MVME172, and MVME177. BVME4000 and
170 BVME6000 boards from BVM Ltd are also supported.
173 bool "MVME147 support"
176 Say Y to include support for early Motorola VME boards. This will
177 build a kernel which can run on MVME147 single-board computers. If
178 you select this option you will have to select the appropriate
179 drivers for SCSI, Ethernet and serial ports later on.
182 bool "MVME162, 166 and 167 support"
185 Say Y to include support for Motorola VME boards. This will build a
186 kernel which can run on MVME162, MVME166, MVME167, MVME172, and
187 MVME177 boards. If you select this option you will have to select
188 the appropriate drivers for SCSI, Ethernet and serial ports later
192 bool "BVME4000 and BVME6000 support"
195 Say Y to include support for VME boards from BVM Ltd. This will
196 build a kernel which can run on BVME4000 and BVME6000 boards. 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 "HP9000/300 and HP9000/400 support"
204 This option enables support for the HP9000/300 and HP9000/400 series
205 of workstations. Support for these machines is still somewhat
206 experimental. If you plan to try to use the kernel on such a machine
208 Everybody else says N.
211 bool "DIO bus support"
215 Say Y here to enable support for the "DIO" expansion bus used in
216 HP300 machines. If you are using such a system you almost certainly
224 This option enables support for the Sun 3x series of workstations.
225 Be warned that this support is very experimental.
226 Note that Sun 3x kernels are not compatible with Sun 3 hardware.
227 General Linux information on the Sun 3x series (now discontinued)
228 is at <http://www.angelfire.com/ca2/tech68k/sun3.html>.
230 If you don't want to compile a kernel for a Sun 3x, say N.
233 bool "Q40/Q60 support"
236 The Q40 is a Motorola 68040-based successor to the Sinclair QL
237 manufactured in Germany. There is an official Q40 home page at
238 <http://www.q40.de/>. This option enables support for the Q40 and
239 Q60. Select your CPU below. For 68LC060 don't forget to enable FPU
242 comment "Processor type"
247 If you anticipate running this kernel on a computer with a MC68020
248 processor, say Y. Otherwise, say N. Note that the 68020 requires a
249 68851 MMU (Memory Management Unit) to run Linux/m68k, except on the
250 Sun 3, which provides its own version.
256 If you anticipate running this kernel on a computer with a MC68030
257 processor, say Y. Otherwise, say N. Note that a MC68EC030 will not
258 work, as it does not include an MMU (Memory Management Unit).
264 If you anticipate running this kernel on a computer with a MC68LC040
265 or MC68040 processor, say Y. Otherwise, say N. Note that an
266 MC68EC040 will not work, as it does not include an MMU (Memory
273 If you anticipate running this kernel on a computer with a MC68060
274 processor, say Y. Otherwise, say N.
278 depends on MMU && !MMU_SUN3
285 bool "Math emulation support (EXPERIMENTAL)"
286 depends on EXPERIMENTAL
288 At some point in the future, this will cause floating-point math
289 instructions to be emulated by the kernel on machines that lack a
290 floating-point math coprocessor. Thrill-seekers and chronically
291 sleep-deprived psychotic hacker types can say Y now, everyone else
292 should probably wait a while.
294 config M68KFPU_EMU_EXTRAPREC
295 bool "Math emulation extra precision"
296 depends on M68KFPU_EMU
298 The fpu uses normally a few bit more during calculations for
299 correct rounding, the emulator can (often) do the same but this
300 extra calculation can cost quite some time, so you can disable
301 it here. The emulator will then "only" calculate with a 64 bit
302 mantissa and round slightly incorrect, what is more then enough
305 config M68KFPU_EMU_ONLY
306 bool "Math emulation only kernel"
307 depends on M68KFPU_EMU
309 This option prevents any floating-point instructions from being
310 compiled into the kernel, thereby the kernel doesn't save any
311 floating point context anymore during task switches, so this
312 kernel will only be usable on machines without a floating-point
313 math coprocessor. This makes the kernel a bit faster as no tests
314 needs to be executed whether a floating-point instruction in the
315 kernel should be executed or not.
318 bool "Advanced configuration options"
320 This gives you access to some advanced options for the CPU. The
321 defaults should be fine for most users, but these options may make
322 it possible for you to improve performance somewhat if you know what
325 Note that the answer to this question won't directly affect the
326 kernel: saying N will just cause the configurator to skip all
327 the questions about these options.
329 Most users should say N to this question.
332 bool "Use read-modify-write instructions"
335 This allows to use certain instructions that work with indivisible
336 read-modify-write bus cycles. While this is faster than the
337 workaround of disabling interrupts, it can conflict with DMA
338 ( = direct memory access) on many Amiga systems, and it is also said
339 to destabilize other machines. It is very likely that this will
340 cause serious problems on any Amiga or Atari Medusa if set. The only
341 configuration where it should work are 68030-based Ataris, where it
342 apparently improves performance. But you've been warned! Unless you
343 really know what you are doing, say N. Try Y only if you're quite
346 config SINGLE_MEMORY_CHUNK
347 bool "Use one physical chunk of memory only"
348 depends on ADVANCED && !SUN3
350 Ignore all but the first contiguous chunk of physical memory for VM
351 purposes. This will save a few bytes kernel size and may speed up
352 some operations. Say N if not sure.
354 config 060_WRITETHROUGH
355 bool "Use write-through caching for 68060 supervisor accesses"
356 depends on ADVANCED && M68060
358 The 68060 generally uses copyback caching of recently accessed data.
359 Copyback caching means that memory writes will be held in an on-chip
360 cache and only written back to memory some time later. Saying Y
361 here will force supervisor (kernel) accesses to use writethrough
362 caching. Writethrough caching means that data is written to memory
363 straight away, so that cache and memory data always agree.
364 Writethrough caching is less efficient, but is needed for some
365 drivers on 68060 based systems where the 68060 bus snooping signal
366 is hardwired on. The 53c710 SCSI driver is known to suffer from
375 source "fs/Kconfig.binfmt"
378 bool "Amiga Zorro (AutoConfig) bus support"
381 This enables support for the Zorro bus in the Amiga. If you have
382 expansion cards in your Amiga that conform to the Amiga
383 AutoConfig(tm) specification, say Y, otherwise N. Note that even
384 expansion cards that do not fit in the Zorro slots but fit in e.g.
385 the CPU slot may fall in this category, so you have to say Y to let
389 bool "Amiga 1200/600 PCMCIA support (EXPERIMENTAL)"
390 depends on AMIGA && EXPERIMENTAL
392 Include support in the kernel for pcmcia on Amiga 1200 and Amiga
393 600. If you intend to use pcmcia cards say Y; otherwise say N.
396 bool "ST-RAM statistics in /proc"
399 Say Y here to report ST-RAM usage statistics in /proc/stram.
402 bool "Use power LED as a heartbeat" if AMIGA || APOLLO || ATARI || MAC ||Q40
403 default y if !AMIGA && !APOLLO && !ATARI && !MAC && !Q40 && HP300
405 Use the power-on LED on your machine as a load meter. The exact
406 behavior is platform-dependent, but normally the flash frequency is
407 a hyperbolic function of the 5-minute load average.
409 # We have a dedicated heartbeat LED. :-)
411 bool "/proc/hardware support"
413 Say Y here to support the /proc/hardware file, which gives you
414 access to information about the machine you're running on,
415 including the model, CPU, MMU, clock speed, BogoMIPS rating,
420 depends on Q40 || AMIGA_PCMCIA || GG2
423 Find out whether you have ISA slots on your motherboard. ISA is the
424 name of a bus system, i.e. the way the CPU talks to the other stuff
425 inside your box. Other bus systems are PCI, EISA, MicroChannel
426 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
427 newer boards don't support it. If you have ISA, say Y, otherwise N.
429 config GENERIC_ISA_DMA
431 depends on Q40 || AMIGA_PCMCIA || GG2
434 source "drivers/pci/Kconfig"
436 source "drivers/zorro/Kconfig"
442 source "drivers/Kconfig"
444 menu "Character devices"
447 tristate "Atari MFP serial support"
450 If you like to use the MFP serial ports ("Modem1", "Serial1") under
451 Linux, say Y. The driver equally supports all kinds of MFP serial
452 ports and automatically detects whether Serial1 is available.
454 To compile this driver as a module, choose M here.
456 Note for Falcon users: You also have an MFP port, it's just not
457 wired to the outside... But you could use the port under Linux.
460 tristate "Atari SCC serial support"
463 If you have serial ports based on a Zilog SCC chip (Modem2, Serial2,
464 LAN) and like to use them under Linux, say Y. All built-in SCC's are
465 supported (TT, MegaSTE, Falcon), and also the ST-ESCC. If you have
466 two connectors for channel A (Serial2 and LAN), they are visible as
467 two separate devices.
469 To compile this driver as a module, choose M here.
472 bool "Atari SCC serial DMA support"
475 This enables DMA support for receiving data on channel A of the SCC.
476 If you have a TT you may say Y here and read
477 drivers/char/atari_SCC.README. All other users should say N here,
478 because only the TT has SCC-DMA, even if your machine keeps claiming
482 tristate "Atari MIDI serial support"
485 If you want to use your Atari's MIDI port in Linux, say Y.
487 To compile this driver as a module, choose M here.
490 tristate "Atari DSP56k support (EXPERIMENTAL)"
491 depends on ATARI && EXPERIMENTAL
493 If you want to be able to use the DSP56001 in Falcons, say Y. This
494 driver is still experimental, and if you don't know what it is, or
495 if you don't have this processor, just say N.
497 To compile this driver as a module, choose M here.
499 config AMIGA_BUILTIN_SERIAL
500 tristate "Amiga builtin serial support"
503 If you want to use your Amiga's built-in serial port in Linux,
506 To compile this driver as a module, choose M here.
508 config WHIPPET_SERIAL
509 tristate "Hisoft Whippet PCMCIA serial support"
510 depends on AMIGA_PCMCIA
512 HiSoft has a web page at <http://www.hisoft.co.uk/>, but there
513 is no listing for the Whippet in their Amiga section.
515 config MULTIFACE_III_TTY
516 tristate "Multiface Card III serial support"
519 If you want to use a Multiface III card's serial port in Linux,
522 To compile this driver as a module, choose M here.
525 tristate "GVP IO-Extender support"
526 depends on PARPORT=n && ZORRO
528 If you want to use a GVP IO-Extender serial card in Linux, say Y.
532 tristate "GVP IO-Extender parallel printer support"
535 Say Y to enable driving a printer from the parallel port on your
536 GVP IO-Extender card, N otherwise.
539 tristate "GVP IO-Extender PLIP support"
542 Say Y to enable doing IP over the parallel port on your GVP
543 IO-Extender card, N otherwise.
546 tristate "Macintosh serial support"
551 depends on INPUT_ADBHID
554 config MAC_ADBKEYCODES
555 bool "Support for ADB raw keycodes"
556 depends on INPUT_ADBHID
558 This provides support for sending raw ADB keycodes to console
559 devices. This is the default up to 2.4.0, but in future this may be
560 phased out in favor of generic Linux keycodes. If you say Y here,
561 you can dynamically switch via the
562 /proc/sys/dev/mac_hid/keyboard_sends_linux_keycodes
563 sysctl and with the "keyboard_sends_linux_keycodes=" kernel
566 If unsure, say Y here.
569 bool "Support for ADB keyboard (old driver)"
570 depends on MAC && !INPUT_ADBHID
572 This option allows you to use an ADB keyboard attached to your
573 machine. Note that this disables any other (ie. PS/2) keyboard
574 support, even if your machine is physically capable of using both at
577 If you use an ADB keyboard (4 pin connector), say Y here.
578 If you use a PS/2 keyboard (6 pin connector), say N here.
581 tristate "HP DCA serial support"
582 depends on DIO && SERIAL_8250
584 If you want to use the internal "DCA" serial ports on an HP300
588 tristate "HP APCI serial support"
589 depends on HP300 && SERIAL_8250 && EXPERIMENTAL
591 If you want to use the internal "APCI" serial ports on an HP400
595 bool "SCC support for MVME147 serial ports"
598 This is the driver for the serial ports on the Motorola MVME147
599 boards. Everyone using one of these boards should say Y here.
602 bool "CD2401 support for MVME166/7 serial ports"
603 depends on MVME16x && BROKEN
605 This is the driver for the serial ports on the Motorola MVME166,
606 167, and 172 boards. Everyone using one of these boards should say
610 bool "SCC support for MVME162 serial ports"
613 This is the driver for the serial ports on the Motorola MVME162 and
614 172 boards. Everyone using one of these boards should say Y here.
617 bool "SCC support for BVME6000 serial ports"
620 This is the driver for the serial ports on the BVME4000 and BVME6000
621 boards from BVM Ltd. Everyone using one of these boards should say
625 bool "Support for DN serial port (dummy)"
628 config SERIAL_CONSOLE
629 bool "Support for serial port console"
630 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)
632 If you say Y here, it will be possible to use a serial port as the
633 system console (the system console is the device which receives all
634 kernel messages and warnings and which allows logins in single user
635 mode). This could be useful if some terminal or printer is connected
638 Even if you say Y here, the currently visible virtual console
639 (/dev/tty0) will still be used as the system console by default, but
640 you can alter that using a kernel command line option such as
641 "console=ttyS1". (Try "man bootparam" or see the documentation of
642 your boot loader (lilo or loadlin) about how to pass options to the
643 kernel at boot time.)
645 If you don't have a VGA card installed and you say Y here, the
646 kernel will automatically use the first serial line, /dev/ttyS0, as
655 source "arch/m68k/Kconfig.debug"
657 source "security/Kconfig"
659 source "crypto/Kconfig"