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/