a31529d7c7
The cardbus support uses the RBUS abstraction, which maps card memory. The default location doesn't work on some machines, resulting in mysterious failures. One can map at 512M instead of 1G, and this helps on at least 2 known models. The cardbus(4) man page does not give this critical hint.
158 lines
4.6 KiB
Groff
158 lines
4.6 KiB
Groff
.\" $NetBSD: cardbus.4,v 1.21 2005/03/21 18:05:36 wiz Exp $
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.\"
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.\" Copyright (c) 1999-2001 The NetBSD Foundation, Inc.
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.\" All rights reserved.
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.\"
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.\" This code is derived from software contributed to The NetBSD Foundation
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.\" by Lennart Augustsson.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the NetBSD
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.\" Foundation, Inc. and its contributors.
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.\" 4. Neither the name of The NetBSD Foundation nor the names of its
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.\" contributors may be used to endorse or promote products derived
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.\" from this software without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\" POSSIBILITY OF SUCH DAMAGE.
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.\"
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.Dd March 21, 2005
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.Dt CARDBUS 4
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.Os
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.Sh NAME
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.Nm cardbus ,
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.Nm cardslot ,
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.Nm cbb
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.Nd CardBus driver
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.Sh SYNOPSIS
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.Cd "cbb* at pci? dev? function ?"
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.Cd "cardslot* at cbb?"
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.Cd "cardbus* at cardslot?"
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.Cd "pcmcia* at cardslot?"
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.Cd "XX* at cardbus? dev ? function ?"
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.Sh DESCRIPTION
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.Nx
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provides machine-independent bus support and
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drivers for CardBus devices.
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.Pp
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The
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.Cm cbb
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device represents the CardBus controller.
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Each controller has a number
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of slots, represented by the
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.Cm cardslot
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devices. A slot can have either a CardBus card or a
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.Tn PCMCIA
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card, which are attached with the
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.Cm cardbus
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or
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.Cm pcmcia
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devices, respectively.
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.Sh SUPPORTED DEVICES
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.Nx
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includes the following machine-independent CardBus
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drivers, sorted by function and driver name:
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.Ss Network interfaces
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.Bl -tag -width speaker -offset indent -compact
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.It ex
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3Com 3c575TX and 3c575BTX
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.It fxp
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Intel i8255x
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.It rtk
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Realtek 8129/8139
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.It tlp
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DECchip 21143
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.El
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.Ss Serial interfaces
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.Bl -tag -width speaker -offset indent -compact
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.It com
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Modems and serial cards
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.El
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.Ss SCSI controllers
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.Bl -tag -width speaker -offset indent -compact
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.It adv
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AdvanSys 1200[A,B], 9xx[U,UA]
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.It ahc
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Adaptec ADP-1480
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.El
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.Ss USB controllers
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.Bl -tag -width speaker -offset indent -compact
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.It ehci
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Enhanced Host Controller (2.0)
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.It ohci
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Open Host Controller
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.El
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.Sh DIAGNOSTICS
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.Nm cbb
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devices may not be properly handled by the system BIOS on i386-family
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systems.
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If, on an i386-family system, the
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.Nm cbb
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driver reports
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.Dl cbb0: NOT USED because of unconfigured interrupt
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then enabling
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.Bl -item -offset indent -compact
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.It
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.Cd options PCIBIOS
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.It
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.Cd options PCIBIOS_BUS_FIXUP
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.It
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.Cd options PCIBIOS_INTR_FIXUP
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.El
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in the kernel configuration might be of use.
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.Sh SEE ALSO
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.Xr adv 4 ,
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.Xr ahc 4 ,
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.Xr com 4 ,
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.Xr ehci 4 ,
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.Xr ex 4 ,
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.Xr fxp 4 ,
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.Xr ohci 4 ,
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.Xr options 4 ,
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.Xr pci 4 ,
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.Xr pcmcia 4 ,
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.Xr rtk 4 ,
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.Xr tlp 4
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.Sh HISTORY
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The
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.Nm
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driver appeared in
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.Nx 1.5 .
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.Sh BUGS
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.Ss Memory space conflicts
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.Nx
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maps memory on Cardbus and PCMCIA cards in order to access the cards
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(including reading CIS tuples on PCMCIA cards)
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and access the devices using the
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.Tn RBUS
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abstraction.
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When the mapping does not work, PCMCIA cards are typically ignored on
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insert, and Cardbus cards are recognized but nonfunctional.
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The location is machine-specific, and the default location does not
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work on all hardware.
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On i386, the following kernel configuration line, which maps Cardbus
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space at 512M rather than 1GB, has been found to make Cardbus support
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(including PCMCIA attachment under a cbb) work on some notebook
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models, including the IBM Thinkpad 600E (2645-4AU) and the Compaq
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ARMADA M700:
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.Pp
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.Cd options RBUS_MIN_START="0x20000000"
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