OWL_EMAC_REG_MAC_CSR0
owl_emac_reg_set(priv, OWL_EMAC_REG_MAC_CSR0, OWL_EMAC_BIT_MAC_CSR0_SWR);
ret = readl_poll_timeout(priv->base + OWL_EMAC_REG_MAC_CSR0,