Hi
I am also facing the same problems when booting from eMMC using the prebuilt 13.3 images. The board keeps on rebooting agin and again. I am using the imx6q sabresd dev board.
Have you resolved this? I posted the same thing here: https://community.nxp.com/thread/302864
and yeah we have the same logs. I also posted the log using 13.4 prebuilt images, which boots fine...
edit: my board revision is SCH-27392 Rev C1 (sticker is below the boot switch)
the sticker on top says MXIMX6q-SDP.
the sticker below the GPS antenna is 700-27392