ls1046 : fm1-mac5 and switch ports cannot auto-negotiation to 1000base-Tx mode

[hongyuanz]

The first power on is normal， reboot ls1046 fails to auto-negotiate  to 100base-Tx mode

[yipingwang]

I believe that the mode you are referring is 1000base-KX and not 1000base-TX.
Does it mean, that you are connecting it to an external switch on 100base-KX?
If that is the case, then I would recommend disabling the auto-negotiation (AN) mode.

Additionally, on Linux, you have to use the "fixed link driver" whenever the auto-negotiation mode is disabled.