Re: [PATCH] Fixup for Amigas with memory at 0x200000

[Ilpo Ruotsalainen <lonewolf%iki.fi@localhost>]

On Wed Jan 08 2003 at 21:27:20 +0100, Aymeric Vincent wrote:
> is%netbsd.org@localhost (Ignatios Souvatzis) writes:
> 
> > This sounds good. The DraCo is guaranteed to have at least a 68040V CPU
> > (thats a CMOS 68LC040), which uses the same ITTR + DTTR format and registers
> > as the 68060. Actually, I'm using the same method to switch _off_ 
> > the MMU at reboot time! Just use my code backwards ;-)
> 
> Great. Here is an updated patch which should handle the DraCo.
> As far as the Draco and 68040 Amigas are concerned, I can just
> guarantee that "it compiles".
> 
> [ the only change from the previous patch is the code in locore.s
>   which is #ifdef DRACO ]
> 
> > Make it so. I'll test on DraCo, and 68040 Amiga. (I don't really want to
> > pull out the accellerator to test on 68030 Amiga, though).
> 
> I tested this patch with -current on my '030 A1200 with both a GENERIC
> kernel and a stripped down kernel where M68040 and M68060 are
> undefined.

Just tried booting my '060 A1200 with patched -current, gray screen
nothing else... (I know the -current is otherwise good, so it must be
this patch.)

Any tips on how to debug the early startup code on amiga? I'm quite new
to NetBSD (and non-AmigaOS stuff on amiga in general) and I have
absolutely no ideas how to debug this.

(Perhaps I could write AGA registers to change the screen color, hmm
that might work...)

-- 
Ilpo Ruotsalainen - <lonewolf%iki.fi@localhost> - http://www.iki.fi/lonewolf/