XRS_ETH_ADDR_CFG
regmap_update_bits(priv->regmap, XRS_ETH_ADDR_CFG(port, 0), 1, bpdus);
ret = regmap_write(priv->regmap, XRS_ETH_ADDR_CFG(port, 0), 48 << 2);
ret = regmap_write(priv->regmap, XRS_ETH_ADDR_CFG(port, 1), 40 << 2);
XRS_ETH_ADDR_CFG(partner->index, 1), 1, 1);
regmap_update_bits(priv->regmap, XRS_ETH_ADDR_CFG(port, 1), 1, 1);
XRS_ETH_ADDR_CFG(partner->index, 1), 1, 0);
regmap_update_bits(priv->regmap, XRS_ETH_ADDR_CFG(port, 1), 1, 0);