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From: Dan Malek <dan@mvista.com>
To: alex daniloff <alex_daniloff@mail.ru>
Cc: linuxppc-embedded@lists.linuxppc.org
Subject: Re: Qspan driver
Date: Mon, 23 Apr 2001 14:51:05 -0400	[thread overview]
Message-ID: <3AE47999.A0589002@mvista.com> (raw)
In-Reply-To: E14rbTK-000PMz-00@f5.mail.ru


alex daniloff wrote:
>
> I'm looking for embedded driver for Qspan.

There are a couple of different implementations of the Tundra
Qspan for MPC8xx in the Linux sources.  You may have to adapt
them depending upon your design, as there are many possibilities.

> I've found only drivers for host or pc not for embedded OS.

Well, these aren't really "drivers", but rather the bridge
initialization and configuration space I/O functions.

> I tried to read from PMC PCI configuration space but I've got Machine Check.

Even for a properly configured Qspan you will get these for devices
that don't exist.  You need to ensure (as Linux does) that you have
a continuation model machine check handler that can return errors to
the caller of this type of access.




	-- Dan

** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

      reply	other threads:[~2001-04-23 18:51 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-04-23  8:13 Qspan driver alex daniloff
2001-04-23 18:51 ` Dan Malek [this message]

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