Re: anyone know what's going on in dw780_errchk

[Gordon Zaft <gordonzaft%gmail.com@localhost>]

 I don't know anything about the 780, but it might prove fruitful to
see how the probe is different between the miniroot and the netboot
kernel, perhaps?

On Sun, Feb 15, 2009 at 4:11 PM, Brad Parker <brad%heeltoe.com@localhost> wrote:
>
> Is there anyone on the list know understand how the 780 sbi/unibus scan
> works?
>
> specifically, does anyone know what's going on in dw780_errchk?
>
> I don't understand what that function does.  I don't have my 780 manuals
> with me at the moment.  I think it's looking at some sort of unibus
> bus error register.
>
> the weird thing is that when I boot from the network the probe works fine
> for my uda, but when I boot from the mini root the probe fails.  The first
> time dw780_errchk is called it returns zero, the second time it returns 1
> because the *hej value is 0x10.  (sorry to be clueless right now).
>
> is that a hardware error register?
>
> -brad
>
>



-- 
Gordon Zaft
zaft%zaft.org@localhost (preferred)
gordonzaft%gmail.com@localhost