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TDA4VM: Whether QNX boot using SPL from OSPI is supported

Yang Tianxiang
Prodigy 100 points
Part Number: TDA4VM

Dear Support, 

Currently our products are using SBL boot mode from OSPI. Due to some reasons we want to try to use SPL/Uboot mode. The HLOS in A72 is QNX.

In this case, the boot mode looks like as below:

BootRom - >                                                                        

                 tiboot3.bin (OSPI)    ->    sysfw (OSPI)              

                                                  ->    R5 Autosar(OSPI)      

                                                  ->    tispl.bin (OSPI)   -> Uboot(OSPI/EMMC)   -> QNX (EMMC)                    

                                                                                                                             -> R2-0/1 R3-0/1, C7x.....(EMMC)

Running in DSMC

Running in MCU domain

Running in MainDomain

I am not sure whether it could be achieved since i got the info from SDK doc:

Seems that there is no combination with SPL + Uboot(OSPI boot). Besides i did not found any guide or demo about it.

There is one more question, if SPL boot mode used, whether security boot still supported? 

Thanks a lot for help.