[U-Boot] [linux-sunxi] Re: [PATCH v1 3/9] sunxi: initial sun7i dram setup support

Henrik Nordström henrik at henriknordstrom.net
Fri Mar 14 17:28:30 CET 2014


fre 2014-03-14 klockan 10:17 -0400 skrev Tom Rini:

> And as for the rest of the code, lots of magic numbers to #define
> what/why (why udelay(2) and 22?)

Unfortunately the only documentation we have on the sun7i DRAM
controller is Allwinner boot0 + boot1 code, and that code uses.. magic
numbers & shifts with no explanations.

We have guessed some small bits, but a lot is completely unknown.

Regards
Henriki



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