From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <3AE47999.A0589002@mvista.com> Date: Mon, 23 Apr 2001 14:51:05 -0400 From: Dan Malek MIME-Version: 1.0 To: alex daniloff Cc: linuxppc-embedded@lists.linuxppc.org Subject: Re: Qspan driver References: Content-Type: text/plain; charset=us-ascii Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: 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/