ETH_DLY_RXC_STAGES
delay_val |= FIELD_PREP(ETH_DLY_RXC_STAGES, mac_delay->rx_delay);
delay_val |= FIELD_PREP(ETH_DLY_RXC_STAGES, mac_delay->rx_delay);
delay_val |= FIELD_PREP(ETH_DLY_RXC_STAGES, mac_delay->rx_delay);