regarding FreeBSD support for AU1200

[Wojciech A. Koszek]

On Fri, May 18, 2007 at 04:54:28PM +0100, Bruce M. Simpson wrote:
> saravanan sar wrote:
> >Hi everyone,
> >
> >We are planning to use AU1200 processors which is based on MIPS 
> >architecture. Is there any specific package availabe for this processor ? 
> >if so can anyone say me where to download and the procedures as to how to 
> >port it on AU1200 ?.
> >  
> FreeBSD does not currently have any board specific support for AMD 
> Alchemy based systems. If someone were to step up to contribute such 
> support, or spend time porting NetBSD's support, that would be great.

I have a Au1000-based board, and I plan to work on this if my time
permits. I already got printf() over serial cable (basically old YAMON
code got revoked to the level, in which we're able to put a byte into
the YAMON specific address), so that debugging of low-level bits is
possible with seeing something.

It required minimal changes. Basically everything was derived from
Bruce's work as in the both cases the loader wants to have first byte of
the kernel code to be present at the fixed addresses (0x80100000 in my
case).

I will clean it up and commit to Perforce shortly.

-- 
Wojciech A. Koszek
wkoszek at FreeBSD.org
http://FreeBSD.czest.pl/dunstan/