Date: Fri, 5 Oct 2001 11:44:33 +0100 (BST) From: Doug Rabson <dfr@nlsystems.com> To: Mike Smith <msmith@freebsd.org> Cc: Marcel Moolenaar <marcel@xcllnt.net>, <ia64@FreeBSD.org> Subject: Re: PCI bus 4 Message-ID: <Pine.BSF.4.33.0110051141300.12406-100000@herring.nlsystems.com> In-Reply-To: <200110050938.f959cOE08867@mass.dis.org>
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On Fri, 5 Oct 2001, Mike Smith wrote: > > If your machine is similar to mine then PCI bus 4 is a special internal > > bus (referred to as the CBN bus in the 460GX docs) which has devices > > representing the various host-pci bridges. The bus numbers for bus 1-3 are > > found using config space accesses on bus 4. > > You mean "using the _BBN method in the PCI bus' ACPI object", surely? 8) > > Or is there something really stupid going on here? > Actually I was more-or-less describing what the _BBN methods actually do to find these values. This whole thing is painfully clear to me after spending hours trying to work out why my machine couldn't find its busses until I finally realised that my PCI config space driver was busted for anything except bus zero. <homer> Doh! </homer>. -- Doug Rabson Mail: dfr@nlsystems.com Phone: +44 20 8348 6160 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-ia64" in the body of the message
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