From mboxrd@z Thu Jan 1 00:00:00 1970 Message-Id: <200008011111.MAA03285@hyperion.valhalla.net> Date: Tue, 01 Aug 2000 12:11:56 +0100 Subject: Re: Stealth port problems From: "Iain Sandoe" To: "Timothy A. Seufert" CC: linuxppc-dev@lists.linuxppc.org Mime-version: 1.0 Content-type: text/plain; charset="US-ASCII" Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: Tue, Aug 1, 2000,Timothy A. Seufert wrote: > At 1:22 PM +0100 7/31/00, Iain Sandoe wrote: >>On Mon, Jul 31, 2000, I wrote... >>> On Mon, Jul 31, 2000, Timothy A. Seufert wrote: >>>> At 10:11 AM +0100 7/31/00, Iain Sandoe wrote: >>>> >>>>>BTW st SCC-XXdma stuff *is* enabled on my G3 by default. >>>> >>>> Beige or blue? On my B&W G3 it's not enabled, I only see the plain >>>> non-DMA RX and TX interrupts. >>> >>> Beige - but I was burbling (again) - I build all my own kernels... so YMMV >> >>FWIW: >>With the same kernel... >>On my Lombard - the SCC XXdma does *not* show >>On my 9600 - it does. > > So it looks like it's not getting enabled on New World machines. > After a brief look at the driver init code my impression (quite > possibly a wildly inaccurate one BTW) is that the driver wants DMA > channels and/or IRQs already partially configured. On New World > machines booted via yaboot these may not be configured by OF. On Old > World machines booted via BootX MacOS does the initialization. I think I saw a patch for this fly by yesterday :-) Iain. ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/