We have a custom board with a IMX6UL. The IMX is connected to a generic PHY using RMII. ENET1_TX_CLK is configured as ENET1_REF_CLK1, and should be an output from the PHY at 25MHz (I think). ENET2_RX_EN is configured as ENET1_REF_CLK_25M and should be an output ...