I found only this one reference manual:
But, unfortunately, it is not enough.
Is it possible to get from somewhere the Hi3660 datasheet?
Yes this is the official one, I think the full datasheet is only available under NDA.
@Loic, Thanks for your comment, but I cannot find the way to contact Hisilicon for such an info. Maybe you know their e-mail address or so? Thanks!
for hikey’s and poplar’s soc are googlable and downladable from chinese sites, let’s wait a little, maybe something will leak soon
pitfall is they are not in english