Hello:
Hello:
My network port hardware is set to 1000Mb/s, and the phy is also 1000Mb/s phy. My switch has two modes, one is 1000Mb/s and the other is 100MB /s phy, which can be used after 1000Mb/s mode. If 100MB /s is used, it cannot be connected to the Internet. If the phy is identified as 100 Mbit /s, the transmission rate is different from that of 1000 MB /s. Is there any way to modify the driver or device tree, or any configuration, so that the network port can be identified as 1000 MB /s even when the network port is inserted into 100 Mbit /s?