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
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.
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.