RZA2_PDR
reg16 = readw(pfc_base + RZA2_PDR(port));
writew(reg16, pfc_base + RZA2_PDR(port));
reg16 = readw(priv->base + RZA2_PDR(port));
reg16 = readw(pfc_base + RZA2_PDR(port));
writew(reg16, pfc_base + RZA2_PDR(port));