Hi seyeon
one can look at lan8720 patch
iMX6 RGMII + ENET_REF_CLK/ENET_TX_CLK
or check i.MX6SL EVK codes, it has lan8720 on board
uboot-imx/mx6slevk.c at imx_v2015.04_4.1.15_1.1.0_ga_var01 · varigit/uboot-imx · GitHub
Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------