How to access MSTPRI register on DM8168?

Alexey,

The DM816x EMAC priority is controlled from the INIT_PRESSURE_1 register (address 0x4814060C)

[1:0] CPGMAC0 - EMAC0 initiator pressure
[3:2] CPGMAC1 - EMAC1 initiator pressure

L3 Interconnect – Routes/arbitrates bus requests between Masters and Slaves

EMAC data traffic initiator have programmable pressure control for interconnect. Data from EMAC initiator to targets goes through shared switches. When multiple initiators are going to single target through shared switch, there will be arbitration. “Pressure” determines which initiator’s request wins arbitration in interconnect switch. For same pressure round robin arbitration is performed.

Interconnect supports 3 levels of pressure
0x0 low pressure
0x1 medium pressure
0x3 high pressure
Note: 0x2 pressure value is illegal

This is static pressure.

There is no MSTPRIx register in DM816x device, it is replaced with INIT_PRESSURE_x.

Regards,
Pavel