Hello Andrey Rafalsky,
Did you use NXP formal released LSDK?
In your build environment, please check whether CONFIG_SPL_FSL_LS_PPA has been enabled. If yes, please disable this option to disable PPA loading during SPL stage for SD boot.
PPA currently uses OCRAM for it's own purpose. By enabling the above option, PPA gets loaded in spl phase where uboot is itself running out of OCRAM.
In addition, please refer tot the following to deploy PPA firmware to SD.
=> tftp a0000000 ppa.ib
=> mmc write a0000000 2000 61
Have a great day,
TIC
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