On Wed, 2021-05-05 at 17:43 +0800, DENG Qingfang wrote:

On Wed, May 5, 2021 at 5:31 PM Landen Chao [off-list ref]
wrote:

quoted

How about using mediatek-ge.ko. 'ge' is the abbreviation of gigabit
Ethernet. Most mediatek products use the same gigabit Ethernet phy.

Well, MT7620's PHY is FE..

MT7620's FE PHY HW is different from MT753x's GE PHY. Vendor registers
of these two PHY are totally different.
However, MT7620 internal switch MAC is quite the same as MT753x's MAC
except for VLAN table and other minor changes. The MAC part can be
reused. 

quoted

Landen