From: Vitaly Bordug <vbordug@ru.mvista.com>
To: linuxppc-embedded@ozlabs.org
Subject: Re: cpm_uart console problems?
Date: Wed, 13 Apr 2005 15:29:03 +0400 [thread overview]
Message-ID: <425D027F.1030707@ru.mvista.com> (raw)
In-Reply-To: <797470E884C6D611B7A500B0D0AA56D0F195AE@batistuta.spider.com>
Tsang, Chi Kit wrote:
>Hi,
>
>I am working on an 8260 based board and currently cannot get
>the serial (running on SMC 1) to work using the 2.6.11 kernel.
>The last message I see in my console is: "Now booting the
>kernel".
>
>
>
>I currently do not specify the "console=ttyCPM" in my boot command
>line. Would this be an issue?
>
>
>
Well, I think so. I don't have 8260 but with similar cpm2 board with
"console=ttyCPM0,115200 " parameter serial console works fine.
>I have tried to add "console=ttyCPM" to my boot command line but in
>such cases, the kernel would fail to boot. Using some LEDs as debug,
>I tracked down the hang which seems to happen during cpm_uart_console_write.
>This is as far as I got.
>
>
>
Because there is no such console device...
>I am running with devfs enabled in the kernel. Does the cpm_uart
>driver work with devfs?
>
>
>
Yes, but not very good actually, as far as devfs seems to be
deprecated. At least on my 8272ADS.
>As an aside, I have ported the 2.6.5 kernel to my 8260 based board and
>both ethernet (FCC 1) and serial (SMC 1) worked okay using this particular
>kernel.
>
>Any suggestions/ideas would be much appreciated.
>
>Thanks,
>Chi
>
>
>
--
Sincerely,
Vitaly
next prev parent reply other threads:[~2005-04-13 11:29 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-13 11:01 cpm_uart console problems? Tsang, Chi Kit
2005-04-13 11:29 ` Vitaly Bordug [this message]
2005-04-13 11:52 ` Robert P. J. Day
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