name : cvmx-helper-rgmii.h /***********************license start*************** * Author: Cavium Networks * * Contact: support@caviumnetworks.com * This file is part of the OCTEON SDK * * Copyright (c) 2003-2008 Cavium Networks * * This file is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License, Version 2, as * published by the Free Software Foundation. * * This file is distributed in the hope that it will be useful, but * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or * NONINFRINGEMENT. See the GNU General Public License for more * details. * * You should have received a copy of the GNU General Public License * along with this file; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * or visit http://www.gnu.org/licenses/. * * This file may also be available under a different license from Cavium. * Contact Cavium Networks for more information ***********************license end**************************************/ /** * @file * * Functions for RGMII/GMII/MII initialization, configuration, * and monitoring. * */ #ifndef __CVMX_HELPER_RGMII_H__ #define __CVMX_HELPER_RGMII_H__ /** * Probe RGMII ports and determine the number present * * @interface: Interface to probe * * Returns Number of RGMII/GMII/MII ports (0-4). */ extern int __cvmx_helper_rgmii_probe(int interface); #define __cvmx_helper_rgmii_enumerate __cvmx_helper_rgmii_probe /** * Put an RGMII interface in loopback mode. Internal packets sent * out will be received back again on the same port. Externally * received packets will echo back out. * * @port: IPD port number to loop. */ extern void cvmx_helper_rgmii_internal_loopback(int port); /** * Configure all of the ASX, GMX, and PKO registers required * to get RGMII to function on the supplied interface. * * @interface: PKO Interface to configure (0 or 1) * * Returns Zero on success */ extern int __cvmx_helper_rgmii_enable(int interface); /** * Return the link state of an IPD/PKO port as returned by * auto negotiation. The result of this function may not match * Octeon's link config if auto negotiation has changed since * the last call to cvmx_helper_link_set(). * * @ipd_port: IPD/PKO port to query * * Returns Link state */ extern union cvmx_helper_link_info __cvmx_helper_rgmii_link_get(int ipd_port); /** * Configure an IPD/PKO port for the specified link state. This * function does not influence auto negotiation at the PHY level. * The passed link state must always match the link state returned * by cvmx_helper_link_get(). * * @ipd_port: IPD/PKO port to configure * @link_info: The new link state * * Returns Zero on success, negative on failure */ extern int __cvmx_helper_rgmii_link_set(int ipd_port, union cvmx_helper_link_info link_info); #endif