1 /***********************license start*************** 2 * Author: Cavium Networks 3 * 4 * Contact: support@caviumnetworks.com 5 * This file is part of the OCTEON SDK 6 * 7 * Copyright (c) 2003-2008 Cavium Networks 8 * 9 * This file is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License, Version 2, as 11 * published by the Free Software Foundation. 12 * 13 * This file is distributed in the hope that it will be useful, but 14 * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty 15 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or 16 * NONINFRINGEMENT. See the GNU General Public License for more 17 * details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this file; if not, write to the Free Software 21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 22 * or visit http://www.gnu.org/licenses/. 23 * 24 * This file may also be available under a different license from Cavium. 25 * Contact Cavium Networks for more information 26 ***********************license end**************************************/ 27 28 /** 29 * @file 30 * 31 * Functions for SGMII initialization, configuration, 32 * and monitoring. 33 * 34 */ 35 #ifndef __CVMX_HELPER_SGMII_H__ 36 #define __CVMX_HELPER_SGMII_H__ 37 38 /** 39 * Probe a SGMII interface and determine the number of ports 40 * connected to it. The SGMII interface should still be down after 41 * this call. 42 * 43 * @interface: Interface to probe 44 * 45 * Returns Number of ports on the interface. Zero to disable. 46 */ 47 extern int __cvmx_helper_sgmii_probe(int interface); 48 extern int __cvmx_helper_sgmii_enumerate(int interface); 49 50 /** 51 * Bringup and enable a SGMII interface. After this call packet 52 * I/O should be fully functional. This is called with IPD 53 * enabled but PKO disabled. 54 * 55 * @interface: Interface to bring up 56 * 57 * Returns Zero on success, negative on failure 58 */ 59 extern int __cvmx_helper_sgmii_enable(int interface); 60 61 /** 62 * Return the link state of an IPD/PKO port as returned by 63 * auto negotiation. The result of this function may not match 64 * Octeon's link config if auto negotiation has changed since 65 * the last call to cvmx_helper_link_set(). 66 * 67 * @ipd_port: IPD/PKO port to query 68 * 69 * Returns Link state 70 */ 71 extern cvmx_helper_link_info_t __cvmx_helper_sgmii_link_get(int ipd_port); 72 73 /** 74 * Configure an IPD/PKO port for the specified link state. This 75 * function does not influence auto negotiation at the PHY level. 76 * The passed link state must always match the link state returned 77 * by cvmx_helper_link_get(). It is normally best to use 78 * cvmx_helper_link_autoconf() instead. 79 * 80 * @ipd_port: IPD/PKO port to configure 81 * @link_info: The new link state 82 * 83 * Returns Zero on success, negative on failure 84 */ 85 extern int __cvmx_helper_sgmii_link_set(int ipd_port, 86 cvmx_helper_link_info_t link_info); 87 88 /** 89 * Configure a port for internal and/or external loopback. Internal loopback 90 * causes packets sent by the port to be received by Octeon. External loopback 91 * causes packets received from the wire to sent out again. 92 * 93 * @ipd_port: IPD/PKO port to loopback. 94 * @enable_internal: 95 * Non zero if you want internal loopback 96 * @enable_external: 97 * Non zero if you want external loopback 98 * 99 * Returns Zero on success, negative on failure. 100 */ 101 extern int __cvmx_helper_sgmii_configure_loopback(int ipd_port, 102 int enable_internal, 103 int enable_external); 104 105 #endif 106