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AM2432: SDK 8.5.0.24 OSPI Multipartition bootloader can't set the M4 clock

Part Number: AM2432

Configuration:

     AM243X-EVM, SDK 08.05.00.24, CCS 12.1

I've built and loaded the SBL OSPI Multi-Partition example code (with the IPC Notify Echo example code) using SDK 8.05.00.24.  When I boot in OSPI mode, I get the following messages:

Starting OSPI Multi-Partition Bootloader ...

DMSC Firmware Version 8.5.3--v08.05.03 (Chill Capybar
DMSC Firmware revision 0x8
DMSC ABI revision 3.1

INFO: Bootloader_runCpu:155: CPU r5f1-0  is initialized to 800000000 Hz !!!
INFO: Bootloader_runCpu:155: CPU r5f1-1 is initialized to 800000000 Hz !!!
ERROR: Bootloader_socCpuSetClock:559: CPU clock set for 400000000 Hz failed for m4f0-0
Some tests have failed!!

These examples have worked using earlier versions of SDK.  How can I get this to work again?

Any help would be greatly appreciated.

Thank you