How to use the I3C bus of HIKey970?

From the Hikey970-schematics.pdf, I found that it support I3C interface, but I cannot find more information about how to use it. Does anyone know how to use it??

@Charles.Wang Sorry, HiSilicon hasn’t provided any information about the I3C IP used in this SoC.

Hello Charles,
does Boards 96 has a plan to propose a Hikey 980 based on Kirin 980 which seems to propose I3C natively ?
I would expect that I3C would be better supported by Huawei in this second I3C generation