we use lan8720 phy in imx6q platform through RMII interface.
we config lan8720 to generate 50M ref clock for mac, and connect this 50M clock to ENET_REF_CLK pin.
but according to "IMX6DQ6SDLHDG.pdf", ENET_REF_CLK is not used by the RMII interface and recommend to use GPIO_16 as source pin of 50M clock.
any software workaround can solve our ploblem? we don't want to modify the hardware design.