2141813_en-US

imx8mn-evk - yocto distro gatesgarth upgrade to styhead

I am in the process of upgrading our yocto distribution from gatesgarth to styhead.
When the upgrade is done we will be deploying the image via OTA using rauc.

From the above
1) We currently do not OTA the u-boot; therefore can we still use the gatesgarth u-boot-imx to boot the styhead kernel + dtb's?
2) Our current gatesgarth imx-boot is signed and looks for an authenticated kernel; if we authenticate the kernel using the same keys from gatesgarth; will the boot loader still be able to boot the styhead kernel?
3) Also please note from point 2 above the ui board has been fully locked down (efused and OTP fuse has already been applied)