[URGENT] INDIRECT_FIFO_STATUS Register read is failing.

[nileshbpat]

Reading INDIRECT_FIFO_STATUS register is failing with all the data received as FF for 16 DWORD read. Also, same is true for 1 DWORD read as well. It's not updating status for the FIFO pointers or FIFO Flags.

==> @243963.240 ns master0(AI3C_MASTER, sa:'h00, da:'h70, full_model) try to send transaction:
AI3C_Transaction#c(message number:2)
MSG(addr:'h66, W:0, len:2)
2e db
MSG(addr:'h66, R:1, len:23)

==> @244001.640 ns === [Start Condition] ===
==> @245857.640 ns SDA :'b11001100 , Addr:'h66, rw:'b0(W)
<== @246089.640 ns ACK :'b0 , ACK

==> @246665.640 ns SDA :'b001011101, Data:'h2e, T:'b1

==> @247241.640 ns SDA :'b110110111, Data:'hdb, T:'b1

==> @247331.240 ns === [Repeated Start Condition] ===
==> @247843.240 ns SDA :'b11001101 , Addr:'h66, rw:'b1(R)
<== @248075.240 ns ACK :'b0 , ACK

<== @248651.240 ns	SDA :'b000000011, Data:'h01, T:'b1

<== @249227.240 ns	SDA :'b111111111, Data:'hff, T:'b1

<== @249803.240 ns	SDA :'b111111111, Data:'hff, T:'b1

<== @250379.240 ns	SDA :'b111111111, Data:'hff, T:'b1

<== @250955.240 ns	SDA :'b111111111, Data:'hff, T:'b1

<== @251531.240 ns	SDA :'b111111111, Data:'hff, T:'b1

[kgugala]

This situation happens when you try to read the INDIRECT_FIFO_STATUS register when the device is not in recovery mode (the .DEVICE_STATUS_0[1:0] register is not set to 0x3). As per I3C recovery spec, the INDIRECT_FIFO_STATUS is not accessible outside recovery mode.