From: David Woodhouse <dwmw2@infradead.org>
To: Paul Slootman <paul+nospam@wurtel.net>
Cc: rmk@arm.linux.org.uk, linux-kernel@vger.kernel.org
Subject: Re: Garbage on serial console after serial driver loads
Date: Tue, 19 Apr 2005 09:14:14 +1000 [thread overview]
Message-ID: <1113866055.3579.2.camel@localhost.localdomain> (raw)
In-Reply-To: <d3j49v$u2j$1@news.cistron.nl>
On Wed, 2005-04-13 at 12:45 +0000, Paul Slootman wrote:
> Phil Oester <kernel@linuxace.com> wrote:
> >On Sat, Mar 26, 2005 at 03:10:05PM +0000, Russell King wrote:
> >> Doesn't matter. The problem is that dwmw2's NS16550A patch (from ages
> >> ago) changes the prescaler setting for this device so we can use the
> >> higher speed baud rates. This means any programmed divisor (programmed
> >> at early serial console initialisation time) suddenly becomes wrong as
> >> soon as we fiddle with the prescaler during normal UART initialisation
> >> time.
Hmm. Why aren't we recalculating the divisor when we change the
prescaler? This used to work for serial consoles at the time -- even for
serial consoles about 115200 baud, IIRC.
--
dwmw2
next prev parent reply other threads:[~2005-04-18 23:14 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-25 20:24 Garbage on serial console after serial driver loads Luca
2005-03-25 20:38 ` Russell King
2005-03-25 21:01 ` Luca
2005-03-26 10:16 ` Jan Engelhardt
2005-03-26 14:35 ` Luca
2005-03-26 15:10 ` Russell King
2005-03-26 15:55 ` Phil Oester
2005-03-26 16:37 ` Russell King
2005-03-26 17:19 ` Phil Oester
2005-03-26 17:22 ` Phil Oester
2005-04-13 12:45 ` Paul Slootman
2005-04-18 20:21 ` Phil Oester
2005-04-18 23:14 ` David Woodhouse [this message]
-- strict thread matches above, loose matches on Subject: below --
2005-03-27 11:11 Jan Engelhardt
2005-03-28 17:36 Phil Oester
2005-03-28 19:02 ` Russell King
2005-03-28 23:57 ` Dave Airlie
2005-05-03 14:17 ` David Woodhouse
2005-05-03 15:04 ` Phil Oester
2005-05-03 15:11 ` Tom Rini
2005-05-03 15:23 ` David Woodhouse
2005-05-03 16:00 ` Tom Rini
2005-05-03 16:16 ` Tom Rini
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