I have a custom board with Zynq UltraScale+ MPSoC (xczu7ev) and try to bring up PS GTR SGMII to Marvell 88E1512 PHY Ethernet.
status = "okay";
phy-mode = "sgmii";
xlnx,ptp-enet-clock = <0x0>;
I suggest that the problem is at device tree or kernel configuration.
AR# 66592 and Macb+Driver pages didn't help me.
Is there any any advice of device tree or kernel configuration for successfully usage of Zynq PS GTR SGMII to Marvell 88E1512 PHY Ethernet ???