Subject: Re: CVS commit: syssrc/sys/arch/hp300/dev
To: Gregory McGarry <>
From: Jason R Thorpe <>
List: port-hp300
Date: 04/17/2002 16:47:58
On Thu, Apr 18, 2002 at 02:31:25AM +0300, Gregory McGarry wrote:

 > Log Message:
 > Don't frob MCR_IEN bit if on a 425e.  Problem initially reported
 > by Christoph Badura:
 > It looks to me like the 425e uses reverse polarity of the MCR_IEN bit with
 > respect to the other 4xx models.  That could be because it doesn't have
 > an inverter wired behind the IEN(OUT2) output of the UART.

Perhaps it should be frobbed, just in the opposite sense?  And, instead
of checking for "425E" all over the place, maybe set a flag in the attach
routine, and check that instead?

        -- Jason R. Thorpe <>