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Date: Thu, 05 Apr 2001 11:27:47 -0700
From: Petr Vandrovec <vandrove@vc.cvut.cz>
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To: Carsten Langgaard <carstenl@mips.com>
CC: Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
        Wade Hampton <whampton@staffnet.com>,
        linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: pcnet32 (maybe more) hosed in 2.4.3
In-Reply-To: <20010330190137.A426@indiana.edu> <Pine.LNX.4.30.0103311541300.406-100000@fs131-224.f-secure.com> <20010403202127.A316@bacchus.dhis.org> <3ACB2323.C1653236@mips.com> <3ACB3CA5.D978EF41@staffnet.com> <3ACB8098.DFEC12D7@vc.cvut.cz> <2001040423 <3ACC1E35.4D2F7506@mips.com>
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Carsten Langgaard wrote:
> 
> Petr Vandrovec wrote:

> > Current Linux driver switches them to 16bit mode in pcnet_probe1:
> >
> > pcnet_dwio_reset(); // reset to 16bit mode when in 32bit, ignore in
> > 16bit mode
> > pcnet_wio_reset();  // device is for sure in 16bit mode, but reset it
> > again to

> I'm afraid that's not true.
> The above only do a software reset and that doesn't effect the I/O mode.
> Only a hardware reset effects the I/O mode.
> An because any firmware might changes to 32bit mode after reset (of the whole
> system), we need to support both modes.

Oops. I misinterpreted what code does. Really stupid hardware.
							Thanks,
								Petr Vandrovec
								vandrove@vc.cvut.cz
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