目前客户采用LS1020AXN7MQB硬件已经跑起来,并已移交给驱动工程师移植驱动,目前发现,给SGMII供SerDes Reference Clocks在u-boot升级之后,硬件reset之后,SerDes Reference Clocks不能锁定,必须通过第二次软复位才能真正锁定,而Demo没有出现该问题,这是否与驱动有关?或是还有哪里的问题?还要排查哪里的问题?谢谢!
Ensure that RCW is correct - i.e. SerDes lanes connections and frequencies of applied reference clocks correspond to the RCW settings.
Use a digital scope to ensure that all reference clocks have correct amplitude (as specified in the processor's Data Sheet) and are stable before PORESET_B is deasserted (low->high transition).