[U-Boot] Link problem with eTSEC2 on P2020RDB

Aggrwal Poonam-B10812 B10812 at freescale.com
Wed Jun 23 12:41:38 CEST 2010



> -----Original Message-----
> From: u-boot-bounces at lists.denx.de [mailto:u-boot-bounces at lists.denx.de]
> On Behalf Of Felix Radensky
> Sent: Wednesday, June 23, 2010 1:34 AM
> To: U-Boot-Denx; André Schwarz; Kumar Gala; ptyser at xes-inc.com
> Subject: [U-Boot] Link problem with eTSEC2 on P2020RDB
> 
> Hi,
> 
> eTSEC2 is unusable with TOT master on P2020RDB RevC. The following
> example demonstrates the problem:
> 
> => setenv ethact eTSEC2
> => ping 10.0.0.10
> Waiting for PHY auto negotiation to complete...... TIMEOUT !
> eTSEC2: No link.
> 
> eTSEC2 on P2020RDB is connected to Vitesse SGMII PHY VSC8221.
> 
> Git bisect shows that the problem was introduced by the following commit:
> 
> 46e91674fb4b6d06c6a4984c0b5ac7d9a16923f4 is first bad commit commit
> 46e91674fb4b6d06c6a4984c0b5ac7d9a16923f4
> Author: Peter Tyser <ptyser at xes-inc.com>
> Date:   Tue Nov 3 17:52:07 2009 -0600
> 
>     tsec: Force TBI PHY to 1000Mbps full duplex in SGMII mode
> 
> Reverting this commit makes the problem go away.
>
Hello Peter
Do we need to make any changes in P2020RDB port to make SGMII port work?
 Kind Regards
Poonam
> Felix.
> 
> 
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