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question：
An MDIO error is reported during RGMII configuration
k3-j722s-evm.dts
Hello!
We have received your case and the investigation will take some time. Thank you for your patience.
Does the MDIO of the TDA4EVN chip support the C45 operation mode？
Which SDK version is this?
sdk-linux-11_00_00
??? ? 说：Does the MDIO of the TDA4EVN chip support the C45 operation mode？
No. By default, c45 isn't supported for TDA4VEN.
Can you try with including the following patch.
https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/1045/0001_2D00_net_2D00_ethernet_2D00_ti_2D00_davinci_5F00_mdio_2D00_Add_2D00_c45_2D00_wrapper.patch
