1 /***********************license start***************
2 * Author: Cavium Networks
4 * Contact: support@caviumnetworks.com
5 * This file is part of the OCTEON SDK
7 * Copyright (c) 2003-2008 Cavium Networks
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.
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
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/.
24 * This file may also be available under a different license from Cavium.
25 * Contact Cavium Networks for more information
26 ***********************license end**************************************/
31 * Functions for RGMII/GMII/MII initialization, configuration,
35 #ifndef __CVMX_HELPER_RGMII_H__
36 #define __CVMX_HELPER_RGMII_H__
39 * Probe RGMII ports and determine the number present
41 * @interface: Interface to probe
43 * Returns Number of RGMII/GMII/MII ports (0-4).
45 extern int __cvmx_helper_rgmii_probe(int interface);
48 * Put an RGMII interface in loopback mode. Internal packets sent
49 * out will be received back again on the same port. Externally
50 * received packets will echo back out.
52 * @port: IPD port number to loop.
54 extern void cvmx_helper_rgmii_internal_loopback(int port);
57 * Configure all of the ASX, GMX, and PKO regsiters required
58 * to get RGMII to function on the supplied interface.
60 * @interface: PKO Interface to configure (0 or 1)
62 * Returns Zero on success
64 extern int __cvmx_helper_rgmii_enable(int interface);
67 * Return the link state of an IPD/PKO port as returned by
68 * auto negotiation. The result of this function may not match
69 * Octeon's link config if auto negotiation has changed since
70 * the last call to cvmx_helper_link_set().
72 * @ipd_port: IPD/PKO port to query
76 extern cvmx_helper_link_info_t __cvmx_helper_rgmii_link_get(int ipd_port);
79 * Configure an IPD/PKO port for the specified link state. This
80 * function does not influence auto negotiation at the PHY level.
81 * The passed link state must always match the link state returned
82 * by cvmx_helper_link_get(). It is normally best to use
83 * cvmx_helper_link_autoconf() instead.
85 * @ipd_port: IPD/PKO port to configure
86 * @link_info: The new link state
88 * Returns Zero on success, negative on failure
90 extern int __cvmx_helper_rgmii_link_set(int ipd_port,
91 cvmx_helper_link_info_t link_info);
94 * Configure a port for internal and/or external loopback. Internal loopback
95 * causes packets sent by the port to be received by Octeon. External loopback
96 * causes packets received from the wire to sent out again.
98 * @ipd_port: IPD/PKO port to loopback.
100 * Non zero if you want internal loopback
102 * Non zero if you want external loopback
104 * Returns Zero on success, negative on failure.
106 extern int __cvmx_helper_rgmii_configure_loopback(int ipd_port,
108 int enable_external);