Background: I am trying to verify the propagation delay of the DDR traces on the PCB I designed. To accomplish this, I figured the easiest way is to look at the delay values listed in the DDR PHY memory mapped registers. On microcontrollers, reading registers is easy enough to accomplish, but I don't know how to do that when dealing with an 8M Mini.
I have an i.MX 8M Mini processor running a custom Yocto-generated linux OS. When powered on, it first goes through uboot before starting linux. Is it possible for me to use uboot or linux to dump the DDR PHY memory mapped registers to a file or some format I can read?
