TI_SCI_RM_UDMAP_CHAN_TYPE_PKT_PBRR
req.tx_chan_type = TI_SCI_RM_UDMAP_CHAN_TYPE_PKT_PBRR;
req.rx_chan_type = TI_SCI_RM_UDMAP_CHAN_TYPE_PKT_PBRR;
mode = TI_SCI_RM_UDMAP_CHAN_TYPE_PKT_PBRR;
mode = TI_SCI_RM_UDMAP_CHAN_TYPE_PKT_PBRR;