NIG_REG_XGXS_LANE_SEL_P0
REG_WR(sc, NIG_REG_XGXS_LANE_SEL_P0 + port*4, 1);
REG_WR(sc, NIG_REG_XGXS_LANE_SEL_P0 + port*4, 1);
REG_WR(sc, NIG_REG_XGXS_LANE_SEL_P0 + port*4, ser_lane);
REG_WR(sc, NIG_REG_XGXS_LANE_SEL_P0 + port*4, 0x0);