ENETC_BDR_OFF
enetc_wr_reg_hot(v->tbier_base + ENETC_BDR_OFF(i), 0);
enetc_wr_reg_hot(v->tbier_base + ENETC_BDR_OFF(i),
#define ENETC_BDR(t, i, r) (0x8000 + (t) * 0x100 + ENETC_BDR_OFF(i) + (r))