From: "mike zheng" <mail4mz@gmail.com>
To: "Haiying Wang" <Haiying.Wang@freescale.com>
Cc: linuxppc-dev@ozlabs.org
Subject: Re: printk() does not work on UART1
Date: Wed, 9 Jan 2008 10:34:23 -0500 [thread overview]
Message-ID: <5c9cd53b0801090734t56c0c64lf29d748777c57894@mail.gmail.com> (raw)
In-Reply-To: <1199888068.3004.3.camel@udp097527uds.am.freescale.net>
I found the problem. The CONFIG_CMDLINE was overwritten. Right now, it
is working.
Thanks for all the help,
Mike
On 1/9/08, Haiying Wang <Haiying.Wang@freescale.com> wrote:
> On Wed, 2008-01-09 at 00:06 -0500, mike zheng wrote:
> > Hi All,
> >
> > I have one mpc8568 board using UART1 as the serial port. The OS is
> > Linux Kernel2.4. If I use the polling mode driver of
> > gen550_progress(), it works fine. However the printk() does not work
> > after the console_init(). Anyone know what shall I change in the
> > kernel to use UART1 as serial console? I assume the default is UART0,
> > but I don't know where the value is set. I changed the CONFIG_CMDLINE
> > to ttyS1, it does NOT work.
>
> Make sure you've configured PC0/1/2/3 for UART1 SOUT/RTS/CTS/SIN in
> u-boot.
>
> Haiying
>
>
next prev parent reply other threads:[~2008-01-09 15:34 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-09 0:11 printk() does not work on UART1 mike zheng
2008-01-09 5:06 ` mike zheng
2008-01-09 14:14 ` Haiying Wang
2008-01-09 15:34 ` mike zheng [this message]
2008-01-09 5:11 ` mike zheng
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