gxio(4) - NetBSD Manual Pages

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GXIO(4)                 NetBSD Kernel Interfaces Manual                GXIO(4)


NAME

     gxio -- driver for Gumstix onboard I/O interface


SYNOPSIS

     gxio* at pxaip?
     options GXIO_BLUETOOTH_ON_HWUART
     options GXIO_DEFAULT_EXPANSION


DESCRIPTION

     The gxio driver supports several different expansion boards.  Those
     boards have to be configured either by kernel option or using boot time
     parameter.  The supported extension boards is system specific.

     gxio is available for OMAP based Overo/DouVero and Pepper as well as for
     XScale based Gumstix boards.  To setup the expansion board on boot the
     parameter ``expansion'' for OMAP and XScale can be used.  Additionally,
     some XScale systems can connect two expansion boards.  The second board
     can be configured by the ``busheader'' boot parameter.  The gxio driver
     does not verify validity of both parameters.

     For Xscale boards the following drivers are available for the peripher-
     als:

           sm          SMC91Cxx ethernet interface.

           smsh        SMSC LAN9118/LAN9218 ethernet interface.


OPTIONS

        GXIO_BLUETOOTH_ON_HWUART  Uses HWUART pins for Bluetooth module.

                                  The option only affects Xscale PXA250 based
                                  Gumstix boards.  If set, the serial port
                                  HWUART is used to control Bluetooth module.
                                  Otherwise no Bluetooth module is configured
                                  for PXA250 boards.

        GXIO_DEFAULT_EXPANSION    Static configuration of expansion board.

                                  If configured, the gxio of the processor is
                                  setup for the board.  If a boot parameter is
                                  used, the boot value is used instead.

                                  For Xscale based boards the following values
                                  are supported:
                                  basix
                                  cfstix
                                  etherstix
                                  netcf
                                  netcf-vx
                                  netduo
                                  netduo-mmc
                                  netmicrosd
                                  netmicrosd-vx
                                  netwifimicrosd
                                  netmmc
                                  netpro-vx
                                  wfistix
                                  wfistix-cf

                                  For Overo the following values are sup-
                                  ported:
                                  chestnut43
                                  gallop43
                                  summit
                                  tobi
                                  tobi-duo

                                  For DuoVero the following value is sup-
                                  ported:
                                  parlor

                                  For Pepper the following values are sup-
                                  ported:
                                  43c
                                  43r
                                  dvi


SEE ALSO

     pxaip(4), sm(4), smsh(4)


HISTORY

     The gxio driver first appeared in NetBSD 4.0.


AUTHORS

     The gxio driver was written by Takashi Kiyohara <kiyohara@NetBSD.org> and
     Susumu Miki for WIDE Project and SOUM Corporation.  This manual page was
     contributed by Stephan Meisinger.

NetBSD 8.3                       April 3, 2017                      NetBSD 8.3