linux-kernel - Re: [PATCH 1/2] firewire: endianess fix

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Message-ID: <47C7F209.9030907@s5r6.in-berlin.de>
Date:	Fri, 29 Feb 2008 12:52:41 +0100
From:	Stefan Richter <stefanr@...6.in-berlin.de>
To:	Paul Mackerras <paulus@...ba.org>
CC:	Jarod Wilson <jwilson@...hat.com>, benh@...nel.crashing.org,
	Kristian Hoegsberg <krh@...planet.net>,
	linux-kernel@...r.kernel.org, linuxppc-dev@...abs.org,
	sparclinux@...r.kernel.org, linux1394-devel@...ts.sourceforge.net,
	Sam Ravnborg <sam@...nborg.org>,
	Harvey Harrison <harvey.harrison@...il.com>
Subject: Re: [PATCH 1/2] firewire: endianess fix

Paul Mackerras wrote:
> Jarod Wilson writes:
>> I wonder how many people still actually 1) have a machine 
>> with this controller, 2) are running Linux on it and 3) use firewire 
>> devices with it. Both of you, please speak up, we're trying to help you! 
>> (if only out of morbid curiosity to see this mythical goofy controller).
> 
> I have a first-generation titanium powerbook that has this controller
> (assuming we're talking about vendor/device id = 0x106b / 0x18), and
> yes I run Linux (only) on it and use firewire disks. :)

I actually have a TiBook 400 myself, but so far without Linux, and its 
FireWire PHY is dead.  But I can use CardBus FireWire cards on it to do 
basic testing on a big endian PC, and I can test the selfID 
byte-swapping by the PHY-less onboard controller.

I now started a Fedora 8 live CD (self-test says the medium is 
corrupt... need to burn another one) and dmesg says:
firewire_ohci: Added fw-ohci device 0002:24:0e.0, OHCI version 1.0
firewire_ohci: recursive bus reset detected, discarding self ids
[...]

The second line looks like this is indeed one of those which needs the 
header byte-swap workaround which ohci1394 has but firewire-ohci hasn't yet.

On the weekend I'm going to attempt to put Linux on this PowerBook, at last.
-- 
Stefan Richter
-=====-==--- --=- ===-=
http://arcgraph.de/sr/
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