* Qspan driver
@ 2001-04-23 8:13 alex daniloff
2001-04-23 18:51 ` Dan Malek
0 siblings, 1 reply; 2+ messages in thread
From: alex daniloff @ 2001-04-23 8:13 UTC (permalink / raw)
To: linuxppc-embedded
I'm looking for embedded driver for Qspan.
I've found only drivers for host or pc not for embedded OS.
My configuration:Motorola CPV3060 board with MPC860
MPC860 <==Qbus==> Qspan <==PCI==> PMC modules
I tried to read from PMC PCI configuration space but I've got Machine Check.
If you can, help me.
Thanks, Alex
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Qspan driver
2001-04-23 8:13 Qspan driver alex daniloff
@ 2001-04-23 18:51 ` Dan Malek
0 siblings, 0 replies; 2+ messages in thread
From: Dan Malek @ 2001-04-23 18:51 UTC (permalink / raw)
To: alex daniloff; +Cc: linuxppc-embedded
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/
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