After updating a mx53 based custom design to u-boot version 2016.9 from 2013.10 I’m facing performance problems. Change in performance can be observed e.g. during following situations: - TFTP download has decreased from 3 MiB/s to only 517.6 KiB/s - Hash value calculation (sha1) during FIT image format check. Hash calculation now takes a noticeable amount of time instead of finishing virtually immediately.

Unfortunately I don’t have access to a Freescale evaluation board to cross check my problems with another i.Mx53 based design. My first assumption was a connection with caching, but according to lowlevel_init.S L2 cache is enabled. Same for D-cache and I-cache. Is anybody facing the same problems or could state information about the behavior on other MX53 boards? Any other suggestions?

Regards Martin