Please check Your design, using recommendations of Chapter 8 (Avoiding Board Bring-up
Problems) of “Hardware Development Guide for i.MX 6Quad,6Dual, 6DualLite, 6Solo Families …”
http://cache.freescale.com/files/32bit/doc/user_guide/IMX6DQ6SDLHDG.pdf
Also You may use the next "HW Design Checklist for i.MX6" to check the schematic themselves :
https://community.freescale.com/docs/DOC-93819
Do You have enough memory ?
Is memory configuration correct ?
What are bootargs ?
Have a great day,
Yuri
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