am65_common_get_port
port = am65_common_get_port(common, port_id);
port = am65_common_get_port(common, port_id);
struct am65_cpsw_port *port = am65_common_get_port(common, i);
port = am65_common_get_port(common, i);
port = am65_common_get_port(common, i);
port = am65_common_get_port(common, i);