XL_W3_INTERNAL_CFG
icfg = CSR_READ_4(sc, XL_W3_INTERNAL_CFG) & XL_ICFG_CONNECTOR_MASK;
icfg = CSR_READ_4(sc, XL_W3_INTERNAL_CFG);
CSR_WRITE_4(sc, XL_W3_INTERNAL_CFG, icfg);
icfg = CSR_READ_4(sc, XL_W3_INTERNAL_CFG);
CSR_WRITE_4(sc, XL_W3_INTERNAL_CFG, icfg);