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 source "kernel/Kconfig.freezer"
67 menu "Platform dependent setup"
72 The Extended Industry Standard Architecture (EISA) bus was
73 developed as an open alternative to the IBM MicroChannel bus.
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.
80 Say Y here if you are building a kernel for an EISA-based machine.
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.
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.
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>.
107 To compile this driver as modules, choose M here: the
108 modules will be called pcmcia_core and ds.
112 select MMU_MOTOROLA if MMU
114 This option enables support for the Amiga series of computers. If
115 you plan to use this kernel on an Amiga, say Y here and browse the
116 material available in <file:Documentation/m68k>; otherwise say N.
120 select MMU_MOTOROLA if MMU
122 This option enables support for the 68000-based Atari series of
123 computers (including the TT, Falcon and Medusa). If you plan to use
124 this kernel on an Atari, say Y here and browse the material
125 available in <file:Documentation/m68k>; otherwise say N.
128 bool "Macintosh support"
129 select MMU_MOTOROLA if MMU
131 This option enables support for the Apple Macintosh series of
132 computers (yes, there is experimental support now, at least for part
135 Say N unless you're willing to code the remaining necessary support.
149 bool "Apollo support"
150 select MMU_MOTOROLA if MMU
152 Say Y here if you want to run Linux on an MC680x0-based Apollo
153 Domain workstation such as the DN3500.
156 bool "VME (Motorola and BVM) support"
157 select MMU_MOTOROLA if MMU
159 Say Y here if you want to build a kernel for a 680x0 based VME
160 board. Boards currently supported include Motorola boards MVME147,
161 MVME162, MVME166, MVME167, MVME172, and MVME177. BVME4000 and
162 BVME6000 boards from BVM Ltd are also supported.
165 bool "MVME147 support"
168 Say Y to include support for early Motorola VME boards. This will
169 build a kernel which can run on MVME147 single-board computers. If
170 you select this option you will have to select the appropriate
171 drivers for SCSI, Ethernet and serial ports later on.
174 bool "MVME162, 166 and 167 support"
177 Say Y to include support for Motorola VME boards. This will build a
178 kernel which can run on MVME162, MVME166, MVME167, MVME172, and
179 MVME177 boards. If you select this option you will have to select
180 the appropriate drivers for SCSI, Ethernet and serial ports later
184 bool "BVME4000 and BVME6000 support"
187 Say Y to include support for VME boards from BVM Ltd. This will
188 build a kernel which can run on BVME4000 and BVME6000 boards. If
189 you select this option you will have to select the appropriate
190 drivers for SCSI, Ethernet and serial ports later on.
193 bool "HP9000/300 and HP9000/400 support"
194 select MMU_MOTOROLA if MMU
196 This option enables support for the HP9000/300 and HP9000/400 series
197 of workstations. Support for these machines is still somewhat
198 experimental. If you plan to try to use the kernel on such a machine
200 Everybody else says N.
203 bool "DIO bus support"
207 Say Y here to enable support for the "DIO" expansion bus used in
208 HP300 machines. If you are using such a system you almost certainly
213 select MMU_MOTOROLA if MMU
216 This option enables support for the Sun 3x series of workstations.
217 Be warned that this support is very experimental.
218 Note that Sun 3x kernels are not compatible with Sun 3 hardware.
219 General Linux information on the Sun 3x series (now discontinued)
220 is at <http://www.angelfire.com/ca2/tech68k/sun3.html>.
222 If you don't want to compile a kernel for a Sun 3x, say N.
225 bool "Q40/Q60 support"
226 select MMU_MOTOROLA if MMU
228 The Q40 is a Motorola 68040-based successor to the Sinclair QL
229 manufactured in Germany. There is an official Q40 home page at
230 <http://www.q40.de/>. This option enables support for the Q40 and
231 Q60. Select your CPU below. For 68LC060 don't forget to enable FPU
236 depends on !MMU_MOTOROLA
237 select MMU_SUN3 if MMU
240 This option enables support for the Sun 3 series of workstations
241 (3/50, 3/60, 3/1xx, 3/2xx systems). Enabling this option requires
242 that all other hardware types must be disabled, as Sun 3 kernels
243 are incompatible with all other m68k targets (including Sun 3x!).
245 If you don't want to compile a kernel exclusively for a Sun 3, say N.
247 comment "Processor type"
252 If you anticipate running this kernel on a computer with a MC68020
253 processor, say Y. Otherwise, say N. Note that the 68020 requires a
254 68851 MMU (Memory Management Unit) to run Linux/m68k, except on the
255 Sun 3, which provides its own version.
261 If you anticipate running this kernel on a computer with a MC68030
262 processor, say Y. Otherwise, say N. Note that a MC68EC030 will not
263 work, as it does not include an MMU (Memory Management Unit).
269 If you anticipate running this kernel on a computer with a MC68LC040
270 or MC68040 processor, say Y. Otherwise, say N. Note that an
271 MC68EC040 will not work, as it does not include an MMU (Memory
278 If you anticipate running this kernel on a computer with a MC68060
279 processor, say Y. Otherwise, say N.
286 depends on MMU && !MMU_MOTOROLA
289 bool "Math emulation support (EXPERIMENTAL)"
290 depends on EXPERIMENTAL
292 At some point in the future, this will cause floating-point math
293 instructions to be emulated by the kernel on machines that lack a
294 floating-point math coprocessor. Thrill-seekers and chronically
295 sleep-deprived psychotic hacker types can say Y now, everyone else
296 should probably wait a while.
298 config M68KFPU_EMU_EXTRAPREC
299 bool "Math emulation extra precision"
300 depends on M68KFPU_EMU
302 The fpu uses normally a few bit more during calculations for
303 correct rounding, the emulator can (often) do the same but this
304 extra calculation can cost quite some time, so you can disable
305 it here. The emulator will then "only" calculate with a 64 bit
306 mantissa and round slightly incorrect, what is more than enough
309 config M68KFPU_EMU_ONLY
310 bool "Math emulation only kernel"
311 depends on M68KFPU_EMU
313 This option prevents any floating-point instructions from being
314 compiled into the kernel, thereby the kernel doesn't save any
315 floating point context anymore during task switches, so this
316 kernel will only be usable on machines without a floating-point
317 math coprocessor. This makes the kernel a bit faster as no tests
318 needs to be executed whether a floating-point instruction in the
319 kernel should be executed or not.
322 bool "Advanced configuration options"
324 This gives you access to some advanced options for the CPU. The
325 defaults should be fine for most users, but these options may make
326 it possible for you to improve performance somewhat if you know what
329 Note that the answer to this question won't directly affect the
330 kernel: saying N will just cause the configurator to skip all
331 the questions about these options.
333 Most users should say N to this question.
336 bool "Use read-modify-write instructions"
339 This allows to use certain instructions that work with indivisible
340 read-modify-write bus cycles. While this is faster than the
341 workaround of disabling interrupts, it can conflict with DMA
342 ( = direct memory access) on many Amiga systems, and it is also said
343 to destabilize other machines. It is very likely that this will
344 cause serious problems on any Amiga or Atari Medusa if set. The only
345 configuration where it should work are 68030-based Ataris, where it
346 apparently improves performance. But you've been warned! Unless you
347 really know what you are doing, say N. Try Y only if you're quite
350 config SINGLE_MEMORY_CHUNK
351 bool "Use one physical chunk of memory only" if ADVANCED && !SUN3
353 select NEED_MULTIPLE_NODES
355 Ignore all but the first contiguous chunk of physical memory for VM
356 purposes. This will save a few bytes kernel size and may speed up
357 some operations. Say N if not sure.
359 config 060_WRITETHROUGH
360 bool "Use write-through caching for 68060 supervisor accesses"
361 depends on ADVANCED && M68060
363 The 68060 generally uses copyback caching of recently accessed data.
364 Copyback caching means that memory writes will be held in an on-chip
365 cache and only written back to memory some time later. Saying Y
366 here will force supervisor (kernel) accesses to use writethrough
367 caching. Writethrough caching means that data is written to memory
368 straight away, so that cache and memory data always agree.
369 Writethrough caching is less efficient, but is needed for some
370 drivers on 68060 based systems where the 68060 bus snooping signal
371 is hardwired on. The 53c710 SCSI driver is known to suffer from
374 config ARCH_DISCONTIGMEM_ENABLE
375 def_bool !SINGLE_MEMORY_CHUNK
380 depends on !SINGLE_MEMORY_CHUNK
388 source "fs/Kconfig.binfmt"
391 bool "Amiga Zorro (AutoConfig) bus support"
394 This enables support for the Zorro bus in the Amiga. If you have
395 expansion cards in your Amiga that conform to the Amiga
396 AutoConfig(tm) specification, say Y, otherwise N. Note that even
397 expansion cards that do not fit in the Zorro slots but fit in e.g.
398 the CPU slot may fall in this category, so you have to say Y to let
402 bool "Amiga 1200/600 PCMCIA support (EXPERIMENTAL)"
403 depends on AMIGA && EXPERIMENTAL
405 Include support in the kernel for pcmcia on Amiga 1200 and Amiga
406 600. If you intend to use pcmcia cards say Y; otherwise say N.
409 bool "ST-RAM statistics in /proc"
412 Say Y here to report ST-RAM usage statistics in /proc/stram.
415 bool "Use power LED as a heartbeat" if AMIGA || APOLLO || ATARI || MAC ||Q40
416 default y if !AMIGA && !APOLLO && !ATARI && !MAC && !Q40 && HP300
418 Use the power-on LED on your machine as a load meter. The exact
419 behavior is platform-dependent, but normally the flash frequency is
420 a hyperbolic function of the 5-minute load average.
422 # We have a dedicated heartbeat LED. :-)
424 bool "/proc/hardware support"
426 Say Y here to support the /proc/hardware file, which gives you
427 access to information about the machine you're running on,
428 including the model, CPU, MMU, clock speed, BogoMIPS rating,
433 depends on Q40 || AMIGA_PCMCIA || GG2
436 Find out whether you have ISA slots on your motherboard. ISA is the
437 name of a bus system, i.e. the way the CPU talks to the other stuff
438 inside your box. Other bus systems are PCI, EISA, MicroChannel
439 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
440 newer boards don't support it. If you have ISA, say Y, otherwise N.
442 config GENERIC_ISA_DMA
444 depends on Q40 || AMIGA_PCMCIA || GG2
451 source "drivers/pci/Kconfig"
453 source "drivers/zorro/Kconfig"
459 source "drivers/Kconfig"
461 menu "Character devices"
464 tristate "Atari MFP serial support"
467 If you like to use the MFP serial ports ("Modem1", "Serial1") under
468 Linux, say Y. The driver equally supports all kinds of MFP serial
469 ports and automatically detects whether Serial1 is available.
471 To compile this driver as a module, choose M here.
473 Note for Falcon users: You also have an MFP port, it's just not
474 wired to the outside... But you could use the port under Linux.
477 tristate "Atari MIDI serial support"
480 If you want to use your Atari's MIDI port in Linux, say Y.
482 To compile this driver as a module, choose M here.
485 tristate "Atari DSP56k support (EXPERIMENTAL)"
486 depends on ATARI && EXPERIMENTAL
488 If you want to be able to use the DSP56001 in Falcons, say Y. This
489 driver is still experimental, and if you don't know what it is, or
490 if you don't have this processor, just say N.
492 To compile this driver as a module, choose M here.
494 config AMIGA_BUILTIN_SERIAL
495 tristate "Amiga builtin serial support"
498 If you want to use your Amiga's built-in serial port in Linux,
501 To compile this driver as a module, choose M here.
503 config MULTIFACE_III_TTY
504 tristate "Multiface Card III serial support"
507 If you want to use a Multiface III card's serial port in Linux,
510 To compile this driver as a module, choose M here.
513 tristate "GVP IO-Extender support"
514 depends on PARPORT=n && ZORRO
516 If you want to use a GVP IO-Extender serial card in Linux, say Y.
520 tristate "GVP IO-Extender parallel printer support"
523 Say Y to enable driving a printer from the parallel port on your
524 GVP IO-Extender card, N otherwise.
527 tristate "GVP IO-Extender PLIP support"
530 Say Y to enable doing IP over the parallel port on your GVP
531 IO-Extender card, N otherwise.
534 tristate "Macintosh serial support"
539 depends on INPUT_ADBHID
543 tristate "HP DCA serial support"
544 depends on DIO && SERIAL_8250
546 If you want to use the internal "DCA" serial ports on an HP300
550 tristate "HP APCI serial support"
551 depends on HP300 && SERIAL_8250 && EXPERIMENTAL
553 If you want to use the internal "APCI" serial ports on an HP400
557 bool "SCC support for MVME147 serial ports"
558 depends on MVME147 && BROKEN
560 This is the driver for the serial ports on the Motorola MVME147
561 boards. Everyone using one of these boards should say Y here.
564 bool "CD2401 support for MVME166/7 serial ports"
567 This is the driver for the serial ports on the Motorola MVME166,
568 167, and 172 boards. Everyone using one of these boards should say
572 bool "SCC support for MVME162 serial ports"
573 depends on MVME16x && BROKEN
575 This is the driver for the serial ports on the Motorola MVME162 and
576 172 boards. Everyone using one of these boards should say Y here.
579 bool "SCC support for BVME6000 serial ports"
580 depends on BVME6000 && BROKEN
582 This is the driver for the serial ports on the BVME4000 and BVME6000
583 boards from BVM Ltd. Everyone using one of these boards should say
587 bool "Support for DN serial port (dummy)"
590 config SERIAL_CONSOLE
591 bool "Support for serial port console"
592 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)
594 If you say Y here, it will be possible to use a serial port as the
595 system console (the system console is the device which receives all
596 kernel messages and warnings and which allows logins in single user
597 mode). This could be useful if some terminal or printer is connected
600 Even if you say Y here, the currently visible virtual console
601 (/dev/tty0) will still be used as the system console by default, but
602 you can alter that using a kernel command line option such as
603 "console=ttyS1". (Try "man bootparam" or see the documentation of
604 your boot loader (lilo or loadlin) about how to pass options to the
605 kernel at boot time.)
607 If you don't have a VGA card installed and you say Y here, the
608 kernel will automatically use the first serial line, /dev/ttyS0, as
617 source "arch/m68k/Kconfig.debug"
619 source "security/Kconfig"
621 source "crypto/Kconfig"