tb_port_tmu_time_sync_enable
ret = tb_port_tmu_time_sync_enable(up);
ret = tb_port_tmu_time_sync_enable(down);
ret = tb_port_tmu_time_sync_enable(up);
ret = tb_port_tmu_time_sync_enable(down);
ret = tb_port_tmu_time_sync_enable(down);
ret = tb_port_tmu_time_sync_enable(up);