RE: [microblaze-uclinux] Broadcom 5461

["Ron Wright" <ron_wright@xxxxxxxxxxxxxxx>]

John,

There is a reference design with your desired configuration available
from the Memec Reference Design Center at:

http://legacy.memec.com/solutions/reference/xilinx/downloads/MB1000_Web_
Server_Design_EDK63.zip

We haven't had time to try ucLinux with this configuration to date.

The Broadcom datasheet is available, but an NDA and DocSafe account are
required. 

Ron

-----Original Message-----
From: owner-microblaze-uclinux@itee.uq.edu.au
[mailto:owner-microblaze-uclinux@itee.uq.edu.au] On Behalf Of John
Williams
Sent: Tuesday, January 04, 2005 10:50 PM
To: microblaze-uclinux@itee.uq.edu.au
Subject: [microblaze-uclinux] Broadcom 5461

Hi folks,

The latest batch of Insight V2MB1000 boards that we received shipped 
with Version2 of the P160 Comms module - one of the differences from the

original is the change to a broadcom 5461 10/100/1000 ethernet
transeiver.

According the Insight's documentation, the only change required to use 
this new device with existing designs (at 10/100) is to swap a pair of 
pins, but I've tried this and it seems there's more to it than that.  I 
resurrected my old phy_test program that dumps the MII registers, and I 
get 0xFFFFFFFF values for all registers, which is clearly wrong.  So, 
somehow, the MII channel between the Xilinx emac core, and the BCM5461, 
is broken.

I suspect I need to force the 5461 into a 10/100 MII mode, rather than 
the GMII that is used for GigEthernet.  Unfortunately, in their wisdom 
Broadcom don't seem to make available the datasheet for this part.

Before I spend too much time on this, has anyone had any success getting

this new P160 comms board going with the Xilinx ethernet MAC, and/or the

standard mbvanilla platform?

Thanks,

John
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