topic Re: sgmii support for MPC8313E processor problems... in Other NXP Products

sgmii support for MPC8313E processor problems...

gNs — Mon, 21 Sep 2009 22:32:19 GMT

Hi..

we are trying to connect a broadcom PHY for ethernet connectivity through sgmii interface provided by the processor .Reset config word is set so to sgmii mode.I made the changes in U-boot's tsec.c file following the implementation note "AN3354.pdf" to configure the serdes.while booting up i printed the status register value of the serdes phy,the state meant that the autoneg field as '0'.The value should have been 1 instead.processor's serdes is not able to autoneg with PHY. phy autoneg is completed with the external network and shows the speed and duplex values.

I am not able to ping to some external IP from uboot prompt.

Do I need some extra configuration to be done..for sgmii support..?

the processor revision is 2.1

uboot is version 1.3.3

Message Edited by gNs on 2009-09-21 04:42 PM

Re: sgmii support for MPC8313E processor problems...

Davidguo — Wed, 23 Sep 2009 09:13:55 GMT

I have studyed Mpc8313E a few days later.

It seems that sgmii interface can not be used because some chip bugs.

You can find details from Errat.

Re: sgmii support for MPC8313E processor problems...

gNs — Wed, 23 Sep 2009 13:14:57 GMT

i saw the errata...this problem seems to be fixed in revisions > 2 ....

my present revision is 2.1...the issue should have been fixed.