Hi, I have the same question. Have you found the answer? Where did you store the data on uFuse?
I don't think so. You can use GP1,GP2 to store data.
Specially for your mac address,you can use MAC0,MAC1 to store.
I would not recommend using GPR1 or 2 for general data storage. These locations are used by the i.MX6 ROM code.
Can you advise on any other OTP fuses for storing customization data then?