ENETC_PFPMR
val = enetc_port_rd(hw, ENETC_PFPMR);
enetc_port_wr(hw, ENETC_PFPMR, val);
ENETC_MMCSR, ENETC_PFPMR, ENETC_PTCFPR(0), ENETC_PTCFPR(1),