Hi Peter, On Tue, Nov 10, 2020 at 10:37 PM Peter Chen <peter.chen@xxxxxxx> wrote: > 0xf4424184 should be the virtual address for the register PORTSC. There are > two possible reasons for this issue: > - The PHY is not initialized correctly > - The related clock has not opened correctly. If you have a suggestion for a debug patch, I can give it a try. Thanks