SPRZ452I july 2018 – may 2023 AM6526 , AM6528 , AM6546 , AM6548
Cortex-R5F: Deadlock Might Occur When One or More MPU Regions is Configured for Write Allocate Mode
There are two conditions where R5F can deadlock:
Disabling linefill optimization inside Cortex-R5F will eliminate deadlock condition.
To disable the linefill optimization, the software needs to set bit 13 (DLFO) of Auxiliary Control Register (See Cortex-R5F Technical Reference Manual for how to update Auxiliary Control Register).