Subject: Re: needs MI wdc changes to support macppc's wdc
To: None <thorpej@nas.nasa.gov>
From: Wolfgang Solfrank <ws@tools.de>
List: tech-kern
Date: 11/04/1998 18:09:19
Hi,

> Now, let's say you have the newer 7000 model ... On this system the
> serial port registers are linear (no gap), but the IDE registers are
> spaced mod 16.  On this system, it's an issue of how the individual
> chips are wired up, i.e. the stride is per-device.
> 
> In the first example, it's appropriate to use stride in the bus space
> tag.  In the second example, it's appropriate to add register map
> support in the driver.

Hmm, that's at least arguable.  To me it looks like the second example is
an example of bad engineering, and that box should pay the price for it,
not anyone using the same driver.

Ciao,
Wolfgang
-- 
ws@TooLs.DE     (Wolfgang Solfrank, TooLs GmbH) 	+49-228-985800