NIG_REG_LLH0_BRB1_DRV_MASK
REG_WR(bp, NIG_REG_LLH0_BRB1_DRV_MASK + params->port*4, val);
REG_WR(bp, NIG_REG_LLH0_BRB1_DRV_MASK + port*4, 0x0);