Subject: Re: ae driver probing max. 32k RAM -- why?
To: Allen Briggs <briggs@ninthwonder.com>
From: Michael R. Zucca <mrz5149@acm.org>
List: port-mac68k
Date: 12/23/1999 01:10:05
At 2:40 AM -0500 12/22/99, Allen Briggs wrote:
>> Allen> Hmmm...  I seem to recall having some problems with
>> Allen> false-positives on 32k cards when I tried a similar
>> Allen> patch several years ago.
>> Wouldn't it avoid the problem that make these checks to use
>> mac68k_bus_space_probe?
>
>Not necessarily--for some cards, they do not decode all address lines,
>so memory space appears large when it is really many copies of the same
>memory.

This seems to be a general theme. Perhaps we should write a routine that
can size a potentially aliased block of addressed space.

____________________________________________________________________
 Michael Zucca - mrz5149@acm.org - http://www.mdc.net/~mrz5149/
 "I will choose a path that's clear. I will choose Freewill. "
  --Rush, Freewill
____________________________________________________________________