From: Alex Zeffertt <ajz@cambridgebroadband•com>
To: Kumar Gala <galak@kernel•crashing.org>
Cc: linuxppc-embedded@ozlabs•org
Subject: Re: No ttyS device at I/O port 0xfe004500 for console
Date: Wed, 14 Jun 2006 09:47:19 +0100 [thread overview]
Message-ID: <448FCD17.1060108@cambridgebroadband.com> (raw)
In-Reply-To: <2CFF4933-A9D2-4981-BD11-C38537CE193B@kernel.crashing.org>
Kumar Gala wrote:
>
> On Jun 13, 2006, at 11:48 AM, Alex Zeffertt wrote:
>
>> Hi list,
>>
>> I'm trying to boot a linux-2.6.11 kernel on a MPC83xx based board.
>> Through
>> some experimentation I have found I need "console=uart,io,0xfe004500"
>> in the kernel command line in order to get any output over the serial
>> port.
>>
>> Half way through initialisation the kernel appears to swap from its
>> "early"
>> 8250 serial driver to a "full" 8250 serial driver. At this point it
>> prints
>> "No ttyS device at I/O port 0xfe004500 for console" and there is no
>> further output.
>>
>> Does anyone have any idea what I may be doing wrong?
>>
>> BTW, here's the output that I do get.
>
> Alex, where did you get this 2.6.11 kernel? The public tree didn't have
> support for 83xx in 2.6.11. I'd suggest looking at using something
> newer like 2.6.16 and see if you have the same issue.
>
> - k
Hi Kumar, I got it from Freescale's MPC8323EMDS linux BSP.
As far as I am aware this is the only source which has support for this
board. (Hopefully they will eventually upstream their changes!)
I'll have a look at 2.6.11 and see whether it is feasable to port
the board support to it.
Thanks,
Alex
next prev parent reply other threads:[~2006-06-14 8:47 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-13 16:48 No ttyS device at I/O port 0xfe004500 for console Alex Zeffertt
2006-06-13 19:55 ` Kumar Gala
2006-06-13 20:46 ` Joakim Tjernlund
2006-06-13 21:25 ` Chuck Meade
2006-06-13 21:39 ` Joakim Tjernlund
2006-06-13 22:01 ` Chuck Meade
2006-06-13 22:32 ` Kumar Gala
2006-06-14 9:00 ` Alex Zeffertt
2006-06-13 23:53 ` Joakim Tjernlund
2006-06-14 0:19 ` Joakim Tjernlund
2006-06-14 2:27 ` Chuck Meade
2006-06-14 8:47 ` Alex Zeffertt [this message]
2006-06-13 21:20 ` Joakim Tjernlund
2006-06-14 8:51 ` Alex Zeffertt
-- strict thread matches above, loose matches on Subject: below --
2006-06-14 12:37 Joakim Tjernlund
2006-06-14 14:04 ` Chuck Meade
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