Anyone have data sheet for AMD 2128103C PCI SMBus controller?

[Paul Goyette <paul%whooppee.com@localhost>]

I've got a Gateway SX2185 that I'm trying to get running NetBSD.  It's 
mostly working, but I've got two remaining issues:

1. The on-board Ethernet (RealTek 8168/8111) seems to have a problem
   receiving packets.  When I run dhcpcd it reports a "truncated packet"
   and never successfully leases an IP address.  I can "fix" this
   fairly simply by buying an add-on NIC.

2. The on-board i2c controller is not being configured.  The dmesg
   reports

   vendor 1022 product 780b (SMBus serial bus, revision 0x3a) at pci0
   dev 20 function 0 not configured


According to pcidatabase.com this is an AMD chip 2128103C, and our
src/sys/dev/pci/pcidevs shows it as a "Hudson SMBus Controller".  I 
can't seem to find any data-sheet on this, so I have no idea if it is 
even close to any of our currently-supported chips.

Interestingly, many of the other on-board devices on this machine are 
also "HUDSON" devices, including ahcisata, [xeo]hci USB controllers, and 
the first pcib0, all of which are properly configured.

So, does anyone know if the SMBus controller in this HUDSON chip is 
supported?  Or if it would be "close" to something we already support?

Thanks in advance!


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| Paul Goyette     | PGP Key fingerprint:     | E-mail addresses:      |
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