rtl8211f phy is a popular a gigabit ethernet phy used in arm sbcs
it supports both rgmii and rgmii_id variants (full tx rx)
when the gmac node uses it in rgmii mode and the gmac driver sets the delays it works
when the gmac node declares the phy mode as rmgii-id it won't work because the phy code won't set the delays
patch for rgephy to work in rgmii_id mode and rx/tx variants
tested on radxa zero 3e
it supports both rgmii and rgmii_id variants (full tx rx)
when the gmac node uses it in rgmii mode and the gmac driver sets the delays it works
when the gmac node declares the phy mode as rmgii-id it won't work because the phy code won't set the delays
patch for rgephy to work in rgmii_id mode and rx/tx variants
tested on radxa zero 3e