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Unable to enable Interactive DDR debugging with LS1043A

Question asked by Jerry Morrow on Nov 30, 2016
Latest reply on Oct 26, 2018 by Allen Andreu


I'm trying to get the 'Interactive DDR debugging' (FSL DDR> prompt) working with our LS1043ARDB development board.  I have more than a month of experience working with the SDK 2.0 (plus patch) with this development board.


Some slides from our NXP training state the CONFIG_FSL_DDR_INTERACTIVE conditional compile flag must be set, and rebuild u-boot.  Is this necessarily for the default build? 


I found a README.fsl-ddr file in this directory:



It states two different ways to enable the FSL DDR debug prompt (set environment variable, and/or press 'd' on reset), and neither of them work.