Am Donnerstag, den 20.09.2018, 15:45 +0200 schrieb H. Nikolaus Schaller:
Hi,
Or: Can we change some EMIF values to raise stability (maybe at the cost of tiny bit performance?
As far as I remember, Tony did send some EMIF setup patch that is in notaz and letux uboot now, but noted that it might be reasonable to change some more parameters. Unfortunately I do not really understand more about them than you... So I have never played with them.
I thought EMIF is in the MLO, not in U-boot...? Or is the MLO combined with U-Boot on the Pyra?
I'm confused :)
Well, I'm perfectly fine doing trial and error with the values.
The datasheet usually has minimum and maximum listed, so I should be able to safely change them.
I'd change one value at a time between max and min to see if it improves things (or worsens them).
Also, simply comparing the values to the datasheet might help as well.