UCC GETH does not work on my MPC8360EA

Li Yang-R58472 LeoLi at freescale.com
Wed Sep 17 19:38:39 EST 2008


> -----Original Message-----
> From: linuxppc-dev-bounces+leoli=freescale.com at ozlabs.org 
> [mailto:linuxppc-dev-bounces+leoli=freescale.com at ozlabs.org] 
> On Behalf Of Wolfgang Grandegger
> Sent: Wednesday, September 17, 2008 5:18 PM
> To: linuxppc-dev
> Subject: UCC GETH does not work on my MPC8360EA 
> 
> Hello,
> 
> I have a wired problems with my MPC8360EA using Linux 
> 2.6.27-rc6. The UCC GEHT controller works fine with 100/Full 
> but fails with 1000/Full.
> What I see is that the TX done interrupts come (ifconfig's TX 
> packet counter goes up), but the messages does not show up on 
> the wire. RX seems to work properly, though.
> 
> Any idea what's going wrong? Does someone got it working with 
> 1000/Full?

This looks like an old problem that RGMII Tx shouldn't use internal
delay while Rx should use.  So try to use 'rgmii-rxid' as
phy-connection-type in device tree.  Also there should have been a fixup
in u-boot for this.  So update to use latest u-boot might fix your
problem.

- Leo



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