From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Sun, 18 Jan 2004 23:27:10 +0100 To: Benjamin Herrenschmidt Cc: Sven Luther , Michel =?iso-8859-1?Q?D=E4nzer?= , linuxppc-dev list , Rob Baxter Subject: Re: multiple separate pci bridges ... Message-ID: <20040118222710.GE11651@iliana> References: <20040105214239.GA20252@iliana> <1073340725.9497.105.camel@gaston> <20040106073955.GF735@iliana> <1073376024.26508.220.camel@gaston> <20040106081143.GA1644@iliana> <20040118121507.GB4603@iliana> <1074430817.9700.157.camel@thor.asgaard.local> <20040118131402.GB5729@iliana> <1074503545.812.54.camel@gaston> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 In-Reply-To: <1074503545.812.54.camel@gaston> From: Sven Luther Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: On Mon, Jan 19, 2004 at 08:12:25PM +1100, Benjamin Herrenschmidt wrote: > On Mon, 2004-01-19 at 00:14, Sven Luther wrote: > > > Using PCI gart only. (No real AGP on this box, only a pci bus faked as > > AGP one. > > Makes no sense. It's either an AGP bus or not an AGP bus. AGP is just a > superset of PCI so there is no such thing as "PCI bus faked as AGP one". It is a PCI bus (well actually, PCI-X could be supported), but it is not. The connector is an AGP one, and there is some magic chip or something which you need to access to do AGP-like config accessing. I have no idea of the details of it though, only that you need to write the f118/f11c address before/after each agp config space address. Friendly, Sven Luther ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/