OPTEE stuck at AT91bootstrap

[SimoneBongini]

Hello,
I'm an optee newbie, I'm trying to integrate optee-os in Microchip SAMA5D2.
I built optee-os with yocto, but seems that AT91bootstrap stuck when it tryies to start optee.

`
RomBOOT
Backup mode enabled

AT91Bootstrap 4.0.6 (2023-05-05 12:39:18)

SDHC: fix in place for SAMA5D2 SiP VDDSDMMC over-consumption errata
SD/MMC: Image: Read file u-boot.bin to 0x23f00000
MMC: ADMA supported
SD: Card Capacity: High or Extended
SD: Specification Version 3.0X
SD/MMC: Done to load image
SDHC: fix in place for SAMA5D2 SiP VDDSDMMC over-consumption errata
SD/MMC: Image: Read file tee.bin to 0x20000000
Starting OP-TEE, Run at 0x20000000, Non-secure entry at 0x23f00000
`
No other infos.

Has anyone had this problem before? any suggestions?

[TonyHan11]

It seems that the code is stuck at optee-os. It would be better to give the board info and the version/configuration of the code generated for reproducing the issue.