I am currently working on a project to enable ethernet Xilinx emaclite on Arty-100T board. I am currently using Linux 5.5.0-rc1 with buildroot/busybox and riscv-pk (BBL). I have enabled the Emaclite driver and the driver probes and gets MDIO bus probed and all. But during the xilinx_emaclite open function called during netplug demon. It reports as "44000.ethernet eth0: Link is Down". What does this Link is down mean? Is it an hardware issue or configuration issue?