Address of FSBL in boot device for STM32MP257F

[MDH63]

We are using a custom board with STM32MP257F using M33TD flavour, booting from QSPI SNOR.

 

My understanding is that when reset is released, the processor runs some on-chip ROM code, which copies the FSBL from external NV storage into some on-chip RAM and then executes it in RAM.

 

My questions are

 

What is the default offset in the external device that the BOOT ROM code looks for the FSBL (I assume 0x00000000)

 

Is it possible to override this by some mechanism to use another address higher in memory?