From mboxrd@z Thu Jan 1 00:00:00 1970 In-Reply-To: <199901131910.LAA28570@saul9.u.washington.edu> Date: Thu, 14 Jan 1999 12:12:21 +0100 To: linuxppc-dev@lists.linuxppc.org, "David A. Gatwood" , a sun From: Benjamin Herrenschmidt Subject: Re: Porting to NuBus PowerMacs Message-Id: <19990114121221.005972@mail.mipsys.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: On Tue, Jan 12, 1999, a sun wrote: >so, ben, i guess i'll also need memory addresses/sizes as well. after >perusing the m68k code, i think that's the only thing that i forgot to >tell you about. this will essentially make bootx report essentially >the same information as the m68k boot loader. I'll download this bootloader and see what it does. I don't know exactly how to get this memory map yet, it would be great if David could manage to find the info ... >well, my "oh so clever plan" is actually to use the gestalt >information to mock up something that i pass to the m68k interrupt >routines. presto! no more uglification of irq.c. given the >similarities between the apus stuff and the nubus powermac stuff, i'm >actually turning the nubus powermacs into a variant of apus for now. a >lot of my fiddling actually ends up making some minor changes to the >m68k code and calling that instead. > >for now, i'm conveniently ignoring the dma stuff, but it looks like >modifying the mac68k devices will actually prove to be more useful >than dealing with the the standard pci powermac stuff. I think so too. And PCI powermac is still evolving, it would be more difficult to take care of not breaking the NuBus support during evolutions. -- E-Mail: BenH. Web : [[ This message was sent via the linuxppc-dev mailing list. Replies are ]] [[ not forced back to the list, so be sure to Cc linuxppc-dev if your ]] [[ reply is of general interest. To unsubscribe from linuxppc-dev, send ]] [[ the message 'unsubscribe' to linuxppc-dev-request@lists.linuxppc.org ]]