Date: Wed, 27 Mar 2002 10:09:24 -0800 (PST) From: Matthew Jacob <mjacob@feral.com> To: Doug Rabson <dfr@nlsystems.com> Cc: Doug Rabson <dfr@FreeBSD.org>, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/alpha/alpha dec_kn300.c src/sys/alpha/mcbus mcbus.c mcbusvar.h mcpcia.c mcpciavar.h Message-ID: <Pine.BSF.4.21.0203271005260.8052-100000@beppo> In-Reply-To: <20020327101417.B99274-100000@salmon.nlsystems.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Wed, 27 Mar 2002, Doug Rabson wrote: > On Tue, 26 Mar 2002, Matthew Jacob wrote: > > > > > Huh. Does this actually work now? You have to know which hose the EISA bus is > > on before you can attach sio and the console. > > Yes it does. I probe the first two hoses for the presence of the EISA bus. > Actually, according to my reading of the manual, the ISA port and memory > spaces are always on hose 0 (mid 4) at a fixed place in the address space, > so this code is possibly more general than it needs to be. > I wanted to leave open the possibility that it would be in a different place on newer rawhide implementations (that never happened). The architecture was quite broad- there was room for even a massively large GID space. The other thing which always had me deferring attachment was that, like with Sparc, you want to run with the F/W console until you really attach enough h/w to use regular drivers for the console. The way NetBSD elected to do things, and this pollution crept into FreeBSD, was to do 'early initialization'- I always felt this was a crock. Still- if you have things working, then good! Plus working debugger support for easly on stuff. The assumptions and design choices for the original stuff were 4 years ago. -matt To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.BSF.4.21.0203271005260.8052-100000>