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Serial Downloader Protocol (i.MX6ULL/i.MX7D) clarification

Question asked by Stephen Bialkowski on Oct 11, 2018
Latest reply on Oct 16, 2018 by Yuri Muhin


It appears as thought the SDP has gone through some significant changes since the MX25.  If I remember correctly, I would send a few magic commands, the DCD, and eventually an application image, that would be burned directly to NAND flash. 


I am now targeting custom i.MX6ULL and i.MX7dual targets.  After reviewing the current mfgtool, it seems that U-Boot is the preferred mechanism to dd the image to non-volatile storage.  I wonder if this is only an effort to keep the mfgtool target agnostic.  And if so, it stands to wonder whether the old capabilities still exist.  This is a long winded way of getting to my question: do either of these targets have the ability to write to SPI NOR flash without any extra software?  Please clarify for both targets if it's not too much trouble.