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Unable to enable Interactive DDR debugging with LS1043A

Question asked by Jerry Morrow on Nov 30, 2016
Latest reply on Jan 2, 2017 by 张洪军 张


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.