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Re: MIPS Malta and PCNet32 Driver

To: "Kevin D. Kissell" <>
Subject: Re: MIPS Malta and PCNet32 Driver
From: "Maciej W. Rozycki" <>
Date: Sat, 8 Jan 2011 23:07:24 +0000 (GMT)
Cc: Linux MIPS org <>,
In-reply-to: <>
Original-recipient: rfc822;
References: <> <>
User-agent: Alpine 2.00 (LFD 1167 2008-08-23)
On Sat, 8 Jan 2011, Kevin D. Kissell wrote:

> and, amusingly, from a stock kernel that exhibits the problem,
> I plugged in a PCI NIC and *both* interfaces came up happy.  :o/   One
> might suspect that PCNet32 now assumes some level of initialization that
> isn't being done in the platform code, and lucks out if a more
> thoroughly paranoid driver gets loaded first.

 Are you seeing the problem with a system controller other than the 
Bonito?  That would be somewhat alarming, though easier to fix.

 With the Bonito I'd have assumed it was some low-level PCI code rewrite 
-- that seem to keep happening over and over again -- that missed a bit in 
the Bonito driver or the driver altogether.  With the Bonito core cards 
limited to the MIPS 20Kc core and some exotic (for the Malta) QED CPU 
options that would be no surprise at all to me.


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