Hello Jaski, thanks a lot for your answer.
I reply to yours
It was hard to boot on USB sticks using BSP 2.7b2 with the U-boot release delivered as is :
“u-boot-toradex_2016.11-2.7.2-gitr60021a4”. The embedded image (uboot+bootfs+rootfs) was produced by our Yocto toolchain build.
We experienced errors like “EHCI timed out on TD” or “0 Storage Device(s) found” or “Bad device”. We even tried to fix USB_MAX_XFER_BLK in u-boot sources, but it was a no success.
When extracting u-boot binaries from prebuilt BSP 3.0b2 and updating nvram with, all the same sticks booted OK.
Yes, I do prefer to update to BSP 3.0, when do you plan to release the stable version?
At the moment we consider modify our Yocto toolchain to get a later release of U-boot, from 2.8 or 3.0, but I do not really understand if I should build BSP 3.0, extract u-boot from it and then write binaries back into the old 2.7 image, or if I have to overwrite some parts of meta-toradex-nxp by a recent release…
My last tries on this latter idea were not really successful
By the way I’m not really confident on deploying something that will update u-boot nvram…
I’m glad to know that you’re always available for providing some good advices ! Thank you !