From: Shawn Jin <shawnxjin@gmail.com>
To: ppcembed <linuxppc-embedded@ozlabs.org>
Subject: Re: What's wrong with the serial port?
Date: Fri, 12 Aug 2005 14:28:30 -0700 [thread overview]
Message-ID: <c3d0340b05081214282adeda4c@mail.gmail.com> (raw)
In-Reply-To: <20050811231710.GB5796@gate.ebshome.net>
On 8/11/05, Eugene Surovegin <ebs@ebshome.net> wrote:
> On Thu, Aug 11, 2005 at 04:14:54PM -0700, Eugene Surovegin wrote:
> > > MMU:exit
> > > setup_arch: enter
> > > setup_arch: bootmem
> > > arch: exit
> > > ??????
> >
> > Try disabling early text debugging (all that "MMU:..." stuff).
> >
>=20
> Also, make sure you pass correct "console=3D..." line to the kernel
> (with correct device name and baud rate).
After early text debugging is disabled and the correct "console=3DttyS0,
115200" option is passed to kernel, the problem still exists. Also I'm
sure the divisor set to UART is also correct because they are the same
values when U-Boot sets up the port.
Has the serial port enabled interrupt so far at this stage?
Thanks,
-Shawn.
next prev parent reply other threads:[~2005-08-12 21:28 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-08-11 22:41 What's wrong with the serial port? Shawn Jin
2005-08-11 23:14 ` Eugene Surovegin
2005-08-11 23:17 ` Eugene Surovegin
2005-08-12 21:28 ` Shawn Jin [this message]
2005-08-12 21:38 ` Shawn Jin
2005-08-17 1:53 ` Shawn Jin
-- strict thread matches above, loose matches on Subject: below --
2005-08-12 5:01 Debora Liu
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