MVNETA_PORT_TX_RESET
mvreg_write(pp, MVNETA_PORT_TX_RESET, MVNETA_PORT_TX_DMA_RESET);
mvreg_write(pp, MVNETA_PORT_TX_RESET, 0);
mvreg_write(pp, MVNETA_PORT_TX_RESET, MVNETA_PORT_TX_DMA_RESET);
mvreg_write(pp, MVNETA_PORT_TX_RESET, 0);