There are two P2020 boards in my system, one is configured as PCI root complex, and the other is configured as endpoint . The CFG_READY bit of the Read_Configuration_Ready_Register is set once the EP initialization is completed, and the PCI read operation on the EP shows the CFG_READY bit is 1.
On the PCI root complex, I want to know if the CFG_READY bit of the EP is set or not, then I try to read the Read_Configuration_Ready_Register from the RC, but the result is always 0. I read Advanced_Error_Reporting_Capability_ID_Register in the same, the expected result is returned (0x0001).
Is possible to get the value of Read_Configuration_Ready_Register on the EP from the RC?