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Re: UART trouble on the DBAu1100

To: Jon Anders Haugum <jonah@omegav.ntnu.no>
Subject: Re: UART trouble on the DBAu1100
From: Freddy Spierenburg <freddy@dusktilldawn.nl>
Date: Thu, 20 Apr 2006 16:28:47 +0200
Cc: Domen Puncer <domen.puncer@ultra.si>, linux-mips@linux-mips.org
In-reply-to: <20060420145753.C1601@invalid.ed.ntnu.no>
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <20060413131117.GP11097@dusktilldawn.nl> <20060414060640.GE29489@domen.ultra.si> <20060420145753.C1601@invalid.ed.ntnu.no>
Sender: linux-mips-bounce@linux-mips.org
User-agent: Mutt/1.5.11+cvs20060403
Hi Jon,

On Thu, Apr 20, 2006 at 03:11:34PM +0200, Jon Anders Haugum wrote:
> On Fri, 14 Apr 2006, Domen Puncer wrote:
> > On 13/04/06 15:11 +0200, Freddy Spierenburg wrote:
> > > All the received bytes stay in the input buffer of the UART
> > > only to be send up to userland as soon as the UART is asked
> > > to send a byte on the line itself.
> > 
> > I may be way off, but maybe it's just flow control that needs
> > to be turned off.
> 
> If this is uart 0, it's probably a problem with that uart having irq 
> number 0. Which in the 8250 driver is interpreted as no interrupt.
No, it was actually all caused by the incorrect usage of the
non standard Au1x00 divisor latch. When I applied your patch all
worked and I was once again a happy man.

Thanks for the work!

-- 
$ cat ~/.signature
Freddy Spierenburg <freddy@dusktilldawn.nl>  http://freddy.snarl.nl/
GnuPG: 0x7941D1E1=C948 5851 26D2 FA5C 39F1  E588 6F17 FD5D 7941 D1E1
$ # Please read http://www.ietf.org/rfc/rfc2015.txt before complain!

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