Part Number: AM5728
Dear Team,
As I am working very hard for last two weeks about RGMII interfacing with PHY micrel KSZ9021.
Link detection is OK but it shows the speed of 2.5 Mhz only and we have to perform 1Gbps link up test on eth0 port.
Initially it connects with 100 Mbps link up then automatically it gets link down and again link up with 10 Mbps.
Please see the attached log.
Ping not works here.
As per study on another e2e post We observed that many people has been struggled with RGMII timing issues.
Does really RGMII timing issue can cause the ping failure on 10 Mbps?
Although there is an option to tune timing delay within PHY .
But we want to tune on processor GMAC output.
Please provide the appropriate method to resolve this.
Regards
Krishna Vashistha
