SPRZ455D december 2020 – june 2023 DRA829J , DRA829J-Q1 , DRA829V , DRA829V-Q1 , TDA4VM , TDA4VM-Q1
ADVANCE INFORMATION
GIC: ITS Misbehavior
GIC AXI master traffic goes through protocol conversion bridge to access memory. Because of the misconfiguration of this protocol conversion bridge AXI read request generated on one particular ARID will not be returned by the bridge.
This will cause all ITS requests on that particular Device ID, for which read access was requested to fail.
In the boot sequence, software needs to setup 5 dummy device IDs, which can be marked as reserved in TRM, and then sends ITS request for the first 2 device IDs. This sequence should use up unsupported ARID which will not be used by GIC during application and no ITS misbehavior would be seen.
Other combination of workaround can be setup 6 dummy device IDs and send ITS request to first device ID, setup 7 dummy device IDs and send ITS request to first 4 device IDs.