arch/m68k/Kconfig

   1 #
   2 # For a description of the syntax of this configuration file,
   3 # see Documentation/kbuild/kconfig-language.txt.
   4 #
   5 config M68K
   6         bool
   7         default y
   8         select HAVE_AOUT
   9         select HAVE_IDE
  10
  11 config MMU
  12         bool
  13         default y
  14
  15 config RWSEM_GENERIC_SPINLOCK
  16         bool
  17         default y
  18
  19 config RWSEM_XCHGADD_ALGORITHM
  20         bool
  21
  22 config ARCH_HAS_ILOG2_U32
  23         bool
  24         default n
  25
  26 config ARCH_HAS_ILOG2_U64
  27         bool
  28         default n
  29
  30 config GENERIC_HWEIGHT
  31         bool
  32         default y
  33
  34 config GENERIC_CALIBRATE_DELAY
  35         bool
  36         default y
  37
  38 config TIME_LOW_RES
  39         bool
  40         default y
  41
  42 config GENERIC_IOMAP
  43         bool
  44         default y
  45
  46 config ARCH_MAY_HAVE_PC_FDC
  47         bool
  48         depends on BROKEN && (Q40 || SUN3X)
  49         default y
  50
  51 config NO_IOPORT
  52         def_bool y
  53
  54 config NO_DMA
  55         def_bool SUN3
  56
  57 config HZ
  58         int
  59         default 100
  60
  61 mainmenu "Linux/68k Kernel Configuration"
  62
  63 source "init/Kconfig"
  64
  65 source "kernel/Kconfig.freezer"
  66
  67 menu "Platform dependent setup"
  68
  69 config EISA
  70         bool
  71         ---help---
  72           The Extended Industry Standard Architecture (EISA) bus was
  73           developed as an open alternative to the IBM MicroChannel bus.
  74
  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.
  79
  80           Say Y here if you are building a kernel for an EISA-based machine.
  81
  82           Otherwise, say N.
  83
  84 config MCA
  85         bool
  86         help
  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.
  91
  92 config PCMCIA
  93         tristate
  94         ---help---
  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.
 101
 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>.
 106
 107           To compile this driver as modules, choose M here: the
 108           modules will be called pcmcia_core and ds.
 109
 110 config AMIGA
 111         bool "Amiga support"
 112         select MMU_MOTOROLA if MMU
 113         help
 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.
 117
 118 config ATARI
 119         bool "Atari support"
 120         select MMU_MOTOROLA if MMU
 121         help
 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.
 126
 127 config MAC
 128         bool "Macintosh support"
 129         select MMU_MOTOROLA if MMU
 130         help
 131           This option enables support for the Apple Macintosh series of
 132           computers (yes, there is experimental support now, at least for part
 133           of the series).
 134
 135           Say N unless you're willing to code the remaining necessary support.
 136           ;)
 137
 138 config NUBUS
 139         bool
 140         depends on MAC
 141         default y
 142
 143 config M68K_L2_CACHE
 144         bool
 145         depends on MAC
 146         default y
 147
 148 config APOLLO
 149         bool "Apollo support"
 150         select MMU_MOTOROLA if MMU
 151         help
 152           Say Y here if you want to run Linux on an MC680x0-based Apollo
 153           Domain workstation such as the DN3500.
 154
 155 config VME
 156         bool "VME (Motorola and BVM) support"
 157         select MMU_MOTOROLA if MMU
 158         help
 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.
 163
 164 config MVME147
 165         bool "MVME147 support"
 166         depends on VME
 167         help
 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.
 172
 173 config MVME16x
 174         bool "MVME162, 166 and 167 support"
 175         depends on VME
 176         help
 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
 181           on.
 182
 183 config BVME6000
 184         bool "BVME4000 and BVME6000 support"
 185         depends on VME
 186         help
 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.
 191
 192 config HP300
 193         bool "HP9000/300 and HP9000/400 support"
 194         select MMU_MOTOROLA if MMU
 195         help
 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
 199           say Y here.
 200           Everybody else says N.
 201
 202 config DIO
 203         bool "DIO bus support"
 204         depends on HP300
 205         default y
 206         help
 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
 209           want this.
 210
 211 config SUN3X
 212         bool "Sun3x support"
 213         select MMU_MOTOROLA if MMU
 214         select M68030
 215         help
 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>.
 221
 222           If you don't want to compile a kernel for a Sun 3x, say N.
 223
 224 config Q40
 225         bool "Q40/Q60 support"
 226         select MMU_MOTOROLA if MMU
 227         help
 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
 232           emulation.
 233
 234 config SUN3
 235         bool "Sun3 support"
 236         depends on !MMU_MOTOROLA
 237         select MMU_SUN3 if MMU
 238         select M68020
 239         help
 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!).
 244
 245           If you don't want to compile a kernel exclusively for a Sun 3, say N.
 246
 247 comment "Processor type"
 248
 249 config M68020
 250         bool "68020 support"
 251         help
 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.
 256
 257 config M68030
 258         bool "68030 support"
 259         depends on !MMU_SUN3
 260         help
 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).
 264
 265 config M68040
 266         bool "68040 support"
 267         depends on !MMU_SUN3
 268         help
 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
 272           Management Unit).
 273
 274 config M68060
 275         bool "68060 support"
 276         depends on !MMU_SUN3
 277         help
 278           If you anticipate running this kernel on a computer with a MC68060
 279           processor, say Y. Otherwise, say N.
 280
 281 config MMU_MOTOROLA
 282         bool
 283
 284 config MMU_SUN3
 285         bool
 286         depends on MMU && !MMU_MOTOROLA
 287
 288 config M68KFPU_EMU
 289         bool "Math emulation support (EXPERIMENTAL)"
 290         depends on EXPERIMENTAL
 291         help
 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.
 297
 298 config M68KFPU_EMU_EXTRAPREC
 299         bool "Math emulation extra precision"
 300         depends on M68KFPU_EMU
 301         help
 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
 307           for normal usage.
 308
 309 config M68KFPU_EMU_ONLY
 310         bool "Math emulation only kernel"
 311         depends on M68KFPU_EMU
 312         help
 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.
 320
 321 config ADVANCED
 322         bool "Advanced configuration options"
 323         ---help---
 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
 327           you are doing.
 328
 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.
 332
 333           Most users should say N to this question.
 334
 335 config RMW_INSNS
 336         bool "Use read-modify-write instructions"
 337         depends on ADVANCED
 338         ---help---
 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
 348           adventurous.
 349
 350 config SINGLE_MEMORY_CHUNK
 351         bool "Use one physical chunk of memory only" if ADVANCED && !SUN3
 352         default y if SUN3
 353         select NEED_MULTIPLE_NODES
 354         help
 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.
 358
 359 config 060_WRITETHROUGH
 360         bool "Use write-through caching for 68060 supervisor accesses"
 361         depends on ADVANCED && M68060
 362         ---help---
 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
 372           this problem.
 373
 374 config ARCH_DISCONTIGMEM_ENABLE
 375         def_bool !SINGLE_MEMORY_CHUNK
 376
 377 config NODES_SHIFT
 378         int
 379         default "3"
 380         depends on !SINGLE_MEMORY_CHUNK
 381
 382 source "mm/Kconfig"
 383
 384 endmenu
 385
 386 menu "General setup"
 387
 388 source "fs/Kconfig.binfmt"
 389
 390 config ZORRO
 391         bool "Amiga Zorro (AutoConfig) bus support"
 392         depends on AMIGA
 393         help
 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
 399           Linux use these.
 400
 401 config AMIGA_PCMCIA
 402         bool "Amiga 1200/600 PCMCIA support (EXPERIMENTAL)"
 403         depends on AMIGA && EXPERIMENTAL
 404         help
 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.
 407
 408 config STRAM_PROC
 409         bool "ST-RAM statistics in /proc"
 410         depends on ATARI
 411         help
 412           Say Y here to report ST-RAM usage statistics in /proc/stram.
 413
 414 config HEARTBEAT
 415         bool "Use power LED as a heartbeat" if AMIGA || APOLLO || ATARI || MAC ||Q40
 416         default y if !AMIGA && !APOLLO && !ATARI && !MAC && !Q40 && HP300
 417         help
 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.
 421
 422 # We have a dedicated heartbeat LED. :-)
 423 config PROC_HARDWARE
 424         bool "/proc/hardware support"
 425         help
 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,
 429           and memory size.
 430
 431 config ISA
 432         bool
 433         depends on Q40 || AMIGA_PCMCIA || GG2
 434         default y
 435         help
 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.
 441
 442 config GENERIC_ISA_DMA
 443         bool
 444         depends on Q40 || AMIGA_PCMCIA || GG2
 445         default y
 446
 447 config ZONE_DMA
 448         bool
 449         default y
 450
 451 source "drivers/pci/Kconfig"
 452
 453 source "drivers/zorro/Kconfig"
 454
 455 endmenu
 456
 457 source "net/Kconfig"
 458
 459 source "drivers/Kconfig"
 460
 461 menu "Character devices"
 462
 463 config ATARI_MFPSER
 464         tristate "Atari MFP serial support"
 465         depends on ATARI
 466         ---help---
 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.
 470
 471           To compile this driver as a module, choose M here.
 472
 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.
 475
 476 config ATARI_MIDI
 477         tristate "Atari MIDI serial support"
 478         depends on ATARI
 479         help
 480           If you want to use your Atari's MIDI port in Linux, say Y.
 481
 482           To compile this driver as a module, choose M here.
 483
 484 config ATARI_DSP56K
 485         tristate "Atari DSP56k support (EXPERIMENTAL)"
 486         depends on ATARI && EXPERIMENTAL
 487         help
 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.
 491
 492           To compile this driver as a module, choose M here.
 493
 494 config AMIGA_BUILTIN_SERIAL
 495         tristate "Amiga builtin serial support"
 496         depends on AMIGA
 497         help
 498           If you want to use your Amiga's built-in serial port in Linux,
 499           answer Y.
 500
 501           To compile this driver as a module, choose M here.
 502
 503 config MULTIFACE_III_TTY
 504         tristate "Multiface Card III serial support"
 505         depends on AMIGA
 506         help
 507           If you want to use a Multiface III card's serial port in Linux,
 508           answer Y.
 509
 510           To compile this driver as a module, choose M here.
 511
 512 config GVPIOEXT
 513         tristate "GVP IO-Extender support"
 514         depends on PARPORT=n && ZORRO
 515         help
 516           If you want to use a GVP IO-Extender serial card in Linux, say Y.
 517           Otherwise, say N.
 518
 519 config GVPIOEXT_LP
 520         tristate "GVP IO-Extender parallel printer support"
 521         depends on GVPIOEXT
 522         help
 523           Say Y to enable driving a printer from the parallel port on your
 524           GVP IO-Extender card, N otherwise.
 525
 526 config GVPIOEXT_PLIP
 527         tristate "GVP IO-Extender PLIP support"
 528         depends on GVPIOEXT
 529         help
 530           Say Y to enable doing IP over the parallel port on your GVP
 531           IO-Extender card, N otherwise.
 532
 533 config MAC_SCC
 534         tristate "Macintosh serial support"
 535         depends on MAC
 536
 537 config MAC_HID
 538         bool
 539         depends on INPUT_ADBHID
 540         default y
 541
 542 config HPDCA
 543         tristate "HP DCA serial support"
 544         depends on DIO && SERIAL_8250
 545         help
 546           If you want to use the internal "DCA" serial ports on an HP300
 547           machine, say Y here.
 548
 549 config HPAPCI
 550         tristate "HP APCI serial support"
 551         depends on HP300 && SERIAL_8250 && EXPERIMENTAL
 552         help
 553           If you want to use the internal "APCI" serial ports on an HP400
 554           machine, say Y here.
 555
 556 config MVME147_SCC
 557         bool "SCC support for MVME147 serial ports"
 558         depends on MVME147
 559         help
 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.
 562
 563 config SERIAL167
 564         bool "CD2401 support for MVME166/7 serial ports"
 565         depends on MVME16x
 566         help
 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
 569           Y here.
 570
 571 config MVME162_SCC
 572         bool "SCC support for MVME162 serial ports"
 573         depends on MVME16x
 574         help
 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.
 577
 578 config BVME6000_SCC
 579         bool "SCC support for BVME6000 serial ports"
 580         depends on BVME6000
 581         help
 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
 584           Y here.
 585
 586 config DN_SERIAL
 587         bool "Support for DN serial port (dummy)"
 588         depends on APOLLO
 589
 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)
 593         ---help---
 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
 598           to that serial port.
 599
 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.)
 606
 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
 609           system console.
 610
 611           If unsure, say N.
 612
 613 endmenu
 614
 615 source "fs/Kconfig"
 616
 617 source "arch/m68k/Kconfig.debug"
 618
 619 source "security/Kconfig"
 620
 621 source "crypto/Kconfig"
 622
 623 source "lib/Kconfig"