PPC460EX with 2 Ethernet Transceivers

Judd Gilbert JuddG at tanisys.com
Tue Aug 11 07:13:59 EST 2009


Hi,
 
I am currently running linux 2.6.28.4 on a PPC460EX with 2 Marvell
Alaska 88EIIII Ethernet transceivers connected to it. If I hold one of
the transceivers in reset on power on I get the following messages when
the linux kernel boots and eth0 and eth1 both work fine...
 
eth0: EMAC-0 /plb/opb/ethernet at ef600e00, MAC 00:13:a8:00:0d:c6
eth0: found Generic MII PHY (0x00)
/plb/opb/emac-rgmii at ef601500: input 1 in RGMII mode
eth1: EMAC-1 /plb/opb/ethernet at ef600f00, MAC 00:13:a8:00:0d:c7
eth1: found Generic MII PHY (0x02)
 
Now if I don't hold one of the chips in reset (I'm doing it manually
with a switch BTW) I get the following (and eth1 does not work):
 
eth0: EMAC-0 /plb/opb/ethernet at ef600e00, MAC 00:13:a8:00:0d:c6
eth0: found Generic MII PHY (0x00)
/plb/opb/emac-rgmii at ef601500: input 1 in RGMII mode
/plb/opb/ethernet at ef600f00: can't find PHY!
 
At first I thought maybe this is a problem with u-boot, but I'm not sure
now. I was going to start modifying the kernel - but thought I would ask
on here first if anyone has seen this issue.
 
Thanks for your time,
 
Judd Gilbert
 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ozlabs.org/pipermail/linuxppc-dev/attachments/20090810/7b3b75f9/attachment-0001.htm>


More information about the Linuxppc-dev mailing list