AnsweredAssumed Answered

Calibrating different LPDDR2 chips on the fly

Question asked by Lazar Ivanovic on Mar 16, 2016
Latest reply on Mar 20, 2016 by Yuri Muhin

Hi all, I'm using iMX6DL processor and I have two possible LPDDR2 chips that can be used in the device production.

 

I am wondering is there some way to write, at boot loader (u-Boot) runtime, different values in MMDC registers, depending on memory chip used?

For example is there some way to:

  1. detect memory chip
  2. use DCD set that writes to MMDC registers appropriate values for detected memory chip (or set this after boot loader is initialized)

 

I know that DCD is static image that is read by processor from exact location, and that this solution probably is not possible, but just want to ask if someone have an idea how this problem can be solved.

 

Thanks a lot,

Lazar

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