Hi Team
Boot backup mode selection in case of QSPI primary boot mode is unclear for us.
We have a device where the primary boot mode is "QSPI" and the backup boot mode is USB. How is the expected behavior if the CPU fails to read the image at QSPI address 0x0? Based on section "4.4.1.3.1.1 QSPI Initialization Process" (spruim2h.pdf) we could think of 2 possibilities:
1) Check for image at QSPI @ address 0; if this fails then check for image at QSPI @ address 0x400000; if this fails then check for image at USB interface
2) Check for image at QSPI @ address 0; if this fails then check for image at USB interface
How can I figure out the effective boot device chosen by the CPU ? Rationale: If the CPU boots from QSPI address 0x400000 instead of 0x0, then this is an indication that something went wrong e.g. with the software update process. Is the a register where I could read the boot device/location ?
Regards
Walter
