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)
64 config ARCH_USES_GETTIMEOFFSET
67 mainmenu "Linux/68k Kernel Configuration"
71 source "kernel/Kconfig.freezer"
73 menu "Platform dependent setup"
78 The Extended Industry Standard Architecture (EISA) bus was
79 developed as an open alternative to the IBM MicroChannel bus.
81 The EISA bus provided some of the features of the IBM MicroChannel
82 bus while maintaining backward compatibility with cards made for
83 the older ISA bus. The EISA bus saw limited use between 1988 and
84 1995 when it was made obsolete by the PCI bus.
86 Say Y here if you are building a kernel for an EISA-based machine.
93 MicroChannel Architecture is found in some IBM PS/2 machines and
94 laptops. It is a bus system similar to PCI or ISA. See
95 <file:Documentation/mca.txt> (and especially the web page given
96 there) before attempting to build an MCA bus kernel.
101 Say Y here if you want to attach PCMCIA- or PC-cards to your Linux
102 computer. These are credit-card size devices such as network cards,
103 modems or hard drives often used with laptops computers. There are
104 actually two varieties of these cards: the older 16 bit PCMCIA cards
105 and the newer 32 bit CardBus cards. If you want to use CardBus
106 cards, you need to say Y here and also to "CardBus support" below.
108 To use your PC-cards, you will need supporting software from David
109 Hinds' pcmcia-cs package (see the file <file:Documentation/Changes>
110 for location). Please also read the PCMCIA-HOWTO, available from
111 <http://www.tldp.org/docs.html#howto>.
113 To compile this driver as modules, choose M here: the
114 modules will be called pcmcia_core and ds.
118 select MMU_MOTOROLA if MMU
120 This option enables support for the Amiga series of computers. If
121 you plan to use this kernel on an Amiga, say Y here and browse the
122 material available in <file:Documentation/m68k>; otherwise say N.
126 select MMU_MOTOROLA if MMU
128 This option enables support for the 68000-based Atari series of
129 computers (including the TT, Falcon and Medusa). If you plan to use
130 this kernel on an Atari, say Y here and browse the material
131 available in <file:Documentation/m68k>; otherwise say N.
134 bool "Macintosh support"
135 select MMU_MOTOROLA if MMU
137 This option enables support for the Apple Macintosh series of
138 computers (yes, there is experimental support now, at least for part
141 Say N unless you're willing to code the remaining necessary support.
155 bool "Apollo support"
156 select MMU_MOTOROLA if MMU
158 Say Y here if you want to run Linux on an MC680x0-based Apollo
159 Domain workstation such as the DN3500.
162 bool "VME (Motorola and BVM) support"
163 select MMU_MOTOROLA if MMU
165 Say Y here if you want to build a kernel for a 680x0 based VME
166 board. Boards currently supported include Motorola boards MVME147,
167 MVME162, MVME166, MVME167, MVME172, and MVME177. BVME4000 and
168 BVME6000 boards from BVM Ltd are also supported.
171 bool "MVME147 support"
174 Say Y to include support for early Motorola VME boards. This will
175 build a kernel which can run on MVME147 single-board computers. If
176 you select this option you will have to select the appropriate
177 drivers for SCSI, Ethernet and serial ports later on.
180 bool "MVME162, 166 and 167 support"
183 Say Y to include support for Motorola VME boards. This will build a
184 kernel which can run on MVME162, MVME166, MVME167, MVME172, and
185 MVME177 boards. If you select this option you will have to select
186 the appropriate drivers for SCSI, Ethernet and serial ports later
190 bool "BVME4000 and BVME6000 support"
193 Say Y to include support for VME boards from BVM Ltd. This will
194 build a kernel which can run on BVME4000 and BVME6000 boards. If
195 you select this option you will have to select the appropriate
196 drivers for SCSI, Ethernet and serial ports later on.
199 bool "HP9000/300 and HP9000/400 support"
200 select MMU_MOTOROLA if MMU
202 This option enables support for the HP9000/300 and HP9000/400 series
203 of workstations. Support for these machines is still somewhat
204 experimental. If you plan to try to use the kernel on such a machine
206 Everybody else says N.
209 bool "DIO bus support"
213 Say Y here to enable support for the "DIO" expansion bus used in
214 HP300 machines. If you are using such a system you almost certainly
219 select MMU_MOTOROLA if MMU
222 This option enables support for the Sun 3x series of workstations.
223 Be warned that this support is very experimental.
224 Note that Sun 3x kernels are not compatible with Sun 3 hardware.
225 General Linux information on the Sun 3x series (now discontinued)
226 is at <http://www.angelfire.com/ca2/tech68k/sun3.html>.
228 If you don't want to compile a kernel for a Sun 3x, say N.
231 bool "Q40/Q60 support"
232 select MMU_MOTOROLA if MMU
234 The Q40 is a Motorola 68040-based successor to the Sinclair QL
235 manufactured in Germany. There is an official Q40 home page at
236 <http://www.q40.de/>. This option enables support for the Q40 and
237 Q60. Select your CPU below. For 68LC060 don't forget to enable FPU
242 depends on !MMU_MOTOROLA
243 select MMU_SUN3 if MMU
246 This option enables support for the Sun 3 series of workstations
247 (3/50, 3/60, 3/1xx, 3/2xx systems). Enabling this option requires
248 that all other hardware types must be disabled, as Sun 3 kernels
249 are incompatible with all other m68k targets (including Sun 3x!).
251 If you don't want to compile a kernel exclusively for a Sun 3, say N.
253 comment "Processor type"
258 If you anticipate running this kernel on a computer with a MC68020
259 processor, say Y. Otherwise, say N. Note that the 68020 requires a
260 68851 MMU (Memory Management Unit) to run Linux/m68k, except on the
261 Sun 3, which provides its own version.
267 If you anticipate running this kernel on a computer with a MC68030
268 processor, say Y. Otherwise, say N. Note that a MC68EC030 will not
269 work, as it does not include an MMU (Memory Management Unit).
275 If you anticipate running this kernel on a computer with a MC68LC040
276 or MC68040 processor, say Y. Otherwise, say N. Note that an
277 MC68EC040 will not work, as it does not include an MMU (Memory
284 If you anticipate running this kernel on a computer with a MC68060
285 processor, say Y. Otherwise, say N.
292 depends on MMU && !MMU_MOTOROLA
295 bool "Math emulation support (EXPERIMENTAL)"
296 depends on EXPERIMENTAL
298 At some point in the future, this will cause floating-point math
299 instructions to be emulated by the kernel on machines that lack a
300 floating-point math coprocessor. Thrill-seekers and chronically
301 sleep-deprived psychotic hacker types can say Y now, everyone else
302 should probably wait a while.
304 config M68KFPU_EMU_EXTRAPREC
305 bool "Math emulation extra precision"
306 depends on M68KFPU_EMU
308 The fpu uses normally a few bit more during calculations for
309 correct rounding, the emulator can (often) do the same but this
310 extra calculation can cost quite some time, so you can disable
311 it here. The emulator will then "only" calculate with a 64 bit
312 mantissa and round slightly incorrect, what is more than enough
315 config M68KFPU_EMU_ONLY
316 bool "Math emulation only kernel"
317 depends on M68KFPU_EMU
319 This option prevents any floating-point instructions from being
320 compiled into the kernel, thereby the kernel doesn't save any
321 floating point context anymore during task switches, so this
322 kernel will only be usable on machines without a floating-point
323 math coprocessor. This makes the kernel a bit faster as no tests
324 needs to be executed whether a floating-point instruction in the
325 kernel should be executed or not.
328 bool "Advanced configuration options"
330 This gives you access to some advanced options for the CPU. The
331 defaults should be fine for most users, but these options may make
332 it possible for you to improve performance somewhat if you know what
335 Note that the answer to this question won't directly affect the
336 kernel: saying N will just cause the configurator to skip all
337 the questions about these options.
339 Most users should say N to this question.
342 bool "Use read-modify-write instructions"
345 This allows to use certain instructions that work with indivisible
346 read-modify-write bus cycles. While this is faster than the
347 workaround of disabling interrupts, it can conflict with DMA
348 ( = direct memory access) on many Amiga systems, and it is also said
349 to destabilize other machines. It is very likely that this will
350 cause serious problems on any Amiga or Atari Medusa if set. The only
351 configuration where it should work are 68030-based Ataris, where it
352 apparently improves performance. But you've been warned! Unless you
353 really know what you are doing, say N. Try Y only if you're quite
356 config SINGLE_MEMORY_CHUNK
357 bool "Use one physical chunk of memory only" if ADVANCED && !SUN3
359 select NEED_MULTIPLE_NODES
361 Ignore all but the first contiguous chunk of physical memory for VM
362 purposes. This will save a few bytes kernel size and may speed up
363 some operations. Say N if not sure.
365 config 060_WRITETHROUGH
366 bool "Use write-through caching for 68060 supervisor accesses"
367 depends on ADVANCED && M68060
369 The 68060 generally uses copyback caching of recently accessed data.
370 Copyback caching means that memory writes will be held in an on-chip
371 cache and only written back to memory some time later. Saying Y
372 here will force supervisor (kernel) accesses to use writethrough
373 caching. Writethrough caching means that data is written to memory
374 straight away, so that cache and memory data always agree.
375 Writethrough caching is less efficient, but is needed for some
376 drivers on 68060 based systems where the 68060 bus snooping signal
377 is hardwired on. The 53c710 SCSI driver is known to suffer from
380 config ARCH_DISCONTIGMEM_ENABLE
381 def_bool !SINGLE_MEMORY_CHUNK
386 depends on !SINGLE_MEMORY_CHUNK
394 source "fs/Kconfig.binfmt"
397 bool "Amiga Zorro (AutoConfig) bus support"
400 This enables support for the Zorro bus in the Amiga. If you have
401 expansion cards in your Amiga that conform to the Amiga
402 AutoConfig(tm) specification, say Y, otherwise N. Note that even
403 expansion cards that do not fit in the Zorro slots but fit in e.g.
404 the CPU slot may fall in this category, so you have to say Y to let
408 bool "Amiga 1200/600 PCMCIA support (EXPERIMENTAL)"
409 depends on AMIGA && EXPERIMENTAL
411 Include support in the kernel for pcmcia on Amiga 1200 and Amiga
412 600. If you intend to use pcmcia cards say Y; otherwise say N.
415 bool "ST-RAM statistics in /proc"
418 Say Y here to report ST-RAM usage statistics in /proc/stram.
421 bool "Use power LED as a heartbeat" if AMIGA || APOLLO || ATARI || MAC ||Q40
422 default y if !AMIGA && !APOLLO && !ATARI && !MAC && !Q40 && HP300
424 Use the power-on LED on your machine as a load meter. The exact
425 behavior is platform-dependent, but normally the flash frequency is
426 a hyperbolic function of the 5-minute load average.
428 # We have a dedicated heartbeat LED. :-)
430 bool "/proc/hardware support"
432 Say Y here to support the /proc/hardware file, which gives you
433 access to information about the machine you're running on,
434 including the model, CPU, MMU, clock speed, BogoMIPS rating,
439 depends on Q40 || AMIGA_PCMCIA || GG2
442 Find out whether you have ISA slots on your motherboard. ISA is the
443 name of a bus system, i.e. the way the CPU talks to the other stuff
444 inside your box. Other bus systems are PCI, EISA, MicroChannel
445 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
446 newer boards don't support it. If you have ISA, say Y, otherwise N.
448 config GENERIC_ISA_DMA
450 depends on Q40 || AMIGA_PCMCIA || GG2
457 source "drivers/pci/Kconfig"
459 source "drivers/zorro/Kconfig"
465 source "drivers/Kconfig"
467 menu "Character devices"
470 tristate "Atari MFP serial support"
473 If you like to use the MFP serial ports ("Modem1", "Serial1") under
474 Linux, say Y. The driver equally supports all kinds of MFP serial
475 ports and automatically detects whether Serial1 is available.
477 To compile this driver as a module, choose M here.
479 Note for Falcon users: You also have an MFP port, it's just not
480 wired to the outside... But you could use the port under Linux.
483 tristate "Atari MIDI serial support"
486 If you want to use your Atari's MIDI port in Linux, say Y.
488 To compile this driver as a module, choose M here.
491 tristate "Atari DSP56k support (EXPERIMENTAL)"
492 depends on ATARI && EXPERIMENTAL
494 If you want to be able to use the DSP56001 in Falcons, say Y. This
495 driver is still experimental, and if you don't know what it is, or
496 if you don't have this processor, just say N.
498 To compile this driver as a module, choose M here.
500 config AMIGA_BUILTIN_SERIAL
501 tristate "Amiga builtin serial support"
504 If you want to use your Amiga's built-in serial port in Linux,
507 To compile this driver as a module, choose M here.
509 config MULTIFACE_III_TTY
510 tristate "Multiface Card III serial support"
513 If you want to use a Multiface III card's serial port in Linux,
516 To compile this driver as a module, choose M here.
519 tristate "GVP IO-Extender support"
520 depends on PARPORT=n && ZORRO
522 If you want to use a GVP IO-Extender serial card in Linux, say Y.
526 tristate "GVP IO-Extender parallel printer support"
529 Say Y to enable driving a printer from the parallel port on your
530 GVP IO-Extender card, N otherwise.
533 tristate "GVP IO-Extender PLIP support"
536 Say Y to enable doing IP over the parallel port on your GVP
537 IO-Extender card, N otherwise.
540 tristate "Macintosh serial support"
545 depends on INPUT_ADBHID
549 tristate "HP DCA serial support"
550 depends on DIO && SERIAL_8250
552 If you want to use the internal "DCA" serial ports on an HP300
556 tristate "HP APCI serial support"
557 depends on HP300 && SERIAL_8250 && EXPERIMENTAL
559 If you want to use the internal "APCI" serial ports on an HP400
563 bool "SCC support for MVME147 serial ports"
564 depends on MVME147 && BROKEN
566 This is the driver for the serial ports on the Motorola MVME147
567 boards. Everyone using one of these boards should say Y here.
570 bool "CD2401 support for MVME166/7 serial ports"
573 This is the driver for the serial ports on the Motorola MVME166,
574 167, and 172 boards. Everyone using one of these boards should say
578 bool "SCC support for MVME162 serial ports"
579 depends on MVME16x && BROKEN
581 This is the driver for the serial ports on the Motorola MVME162 and
582 172 boards. Everyone using one of these boards should say Y here.
585 bool "SCC support for BVME6000 serial ports"
586 depends on BVME6000 && BROKEN
588 This is the driver for the serial ports on the BVME4000 and BVME6000
589 boards from BVM Ltd. Everyone using one of these boards should say
593 bool "Support for DN serial port (dummy)"
596 config SERIAL_CONSOLE
597 bool "Support for serial port console"
598 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)
600 If you say Y here, it will be possible to use a serial port as the
601 system console (the system console is the device which receives all
602 kernel messages and warnings and which allows logins in single user
603 mode). This could be useful if some terminal or printer is connected
606 Even if you say Y here, the currently visible virtual console
607 (/dev/tty0) will still be used as the system console by default, but
608 you can alter that using a kernel command line option such as
609 "console=ttyS1". (Try "man bootparam" or see the documentation of
610 your boot loader (lilo or loadlin) about how to pass options to the
611 kernel at boot time.)
613 If you don't have a VGA card installed and you say Y here, the
614 kernel will automatically use the first serial line, /dev/ttyS0, as
623 source "arch/m68k/Kconfig.debug"
625 source "security/Kconfig"
627 source "crypto/Kconfig"