Subject: Re: getting docs from NEC
To: TAKEMURA Shin <takemura@netbsd.org>
From: Chris Jones <chris@cjones.org>
List: port-hpcmips
Date: 03/22/2002 23:43:11
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[moving this discussion to port-hpcmips]

On Fri, Mar 22, 2002 at 07:43:19PM +0900, TAKEMURA Shin wrote:

> From: "Izumi Tsutsui" <tsutsui@ceres.dti.ne.jp>
>=20
> > Does it Vr4172 (which is a companion chip for Vr4121)?
> > http://www.ic.nec.co.jp/nesdis/image/U14388EJ2V0DSJ1.pdf
> > (from http://www.ic.nec.co.jp/micro/english/document/index.html)
> >
> > It seems ohci in this chip is under PCI bus controller, though.
> > (i.e. doesn't it already supported by hpcmips/vr/vr4172*.c?)
>=20
> I've finished writing Vrc4172 USB OHCI driver and I commited
> today. It seems to work on Pencentra 130, which has Vrc4172
> and USB port. But I found that it fails on MC-R700 (Japanese
> model, equevalent to Mobile Pro 800) though it seems that
> we can find some PCI device at same address as Vrc4172.
> Unfortunately, the PCI base address register of the unknown
> device is 0.

Sorry; I didn't realize anybody was working on this.

Interestingly enough, I cannot find a Vrc4172 in my MP 800.  Could it
be a different chip?  On the CPU daughterboard which has the Vr4121
(or D30121F1), there's another chip which is labelled "D82310S 1003
9915KU250".  I think a Vrc4172 would be labelled D31172.

Where can I find an explanation of these labels?  Google didn't help.

Chris

--=20
---------------------------------------------------- chris@cjones.org
Chris Jones                                          Mad scientist at large
  www.netbsd.org www.postgresql.org www.schemers.org www.python.org

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