dan at mvista.com
Tue Apr 24 04:51:05 EST 2001
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.
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