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From: Oncaphillis <oncaphillis@snafu.de>
To: linux-kernel@vger.kernel.org
Subject: UART misbehaves under Linkstation/KuroBoxHG
Date: Wed, 08 Aug 2007 16:09:06 +0200	[thread overview]
Message-ID: <46B9CE82.1050000@snafu.de> (raw)

Greetings,

I'm trying to compile a 2.6.2x kernel on a Linkstation/KuroBox HG/ppc
following instructions given under 
http://www.kurobox.com/mwiki/index.php/Kurobox_support_in_stock_2.6_kernels 
and get weired settings and errors from the serial device (UART 16550A).

Under the 2.4.17 kernel provided by the Kurobox manufacturer it gets 
IRQS in the range of 137/138 under 2.6.22 for the linkstation it gets 
IRQS 17/18 and the serial device behaves fishy

communication errors

"to much work in IRQ 16"

stty -F /dev/ttyS0 sometimes tells me
"unable to perform all requested operations"

setserial tells me the port for /dev/ttyS0 is 0x000 (?)
while cat /proc/tty/driver/serial reports the proper mmio
0x80004500

This holds true for 2.6.20 and 2.6.22.1

Any suggestions ?

Thanks for listening.


             reply	other threads:[~2007-08-08 14:33 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-08-08 14:09 Oncaphillis [this message]
2007-08-08 20:30 ` UART misbehaves under Linkstation/KuroBoxHG Guennadi Liakhovetski
2007-08-08 21:13   ` Oncaphillis
2007-08-08 21:40     ` Guennadi Liakhovetski
2007-08-08 22:04       ` Oncaphillis
2007-08-08 22:47         ` Guennadi Liakhovetski
2007-08-08 22:54           ` Oncaphillis
2007-08-09  0:04           ` Oncaphillis
2007-08-09  6:09             ` Guennadi Liakhovetski

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