NIG_REG_EGRESS_EMAC0_PORT
REG_WR(sc, NIG_REG_EGRESS_EMAC0_PORT + params->port*4, 1);
(REG_RD(sc, NIG_REG_EGRESS_EMAC0_PORT + params->port*4)))
REG_WR(sc, NIG_REG_EGRESS_EMAC0_PORT + params->port*4, 1);
REG_WR(sc, NIG_REG_EGRESS_EMAC0_PORT + params->port*4, 0);
REG_WR(sc, NIG_REG_EGRESS_EMAC0_PORT + port*4, 1);
REG_WR(sc, NIG_REG_EGRESS_EMAC0_PORT + port*4, 0x0);