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49 * Functions for RGMII/GMII/MII initialization, configuration,
52 * <hr>$Revision: 70030 $<hr>
54 #ifndef __CVMX_HELPER_RGMII_H__
55 #define __CVMX_HELPER_RGMII_H__
59 * Probe RGMII ports and determine the number present
61 * @param interface Interface to probe
63 * @return Number of RGMII/GMII/MII ports (0-4).
65 extern int __cvmx_helper_rgmii_probe(int interface);
66 static inline int __cvmx_helper_rgmii_enumerate(int interface)
68 return __cvmx_helper_rgmii_probe(interface);
72 * Put an RGMII interface in loopback mode. Internal packets sent
73 * out will be received back again on the same port. Externally
74 * received packets will echo back out.
76 * @param port IPD port number to loop.
78 extern void cvmx_helper_rgmii_internal_loopback(int port);
82 * Configure all of the ASX, GMX, and PKO regsiters required
83 * to get RGMII to function on the supplied interface.
85 * @param interface PKO Interface to configure (0 or 1)
87 * @return Zero on success
89 extern int __cvmx_helper_rgmii_enable(int interface);
93 * Return the link state of an IPD/PKO port as returned by
94 * auto negotiation. The result of this function may not match
95 * Octeon's link config if auto negotiation has changed since
96 * the last call to cvmx_helper_link_set().
98 * @param ipd_port IPD/PKO port to query
102 extern cvmx_helper_link_info_t __cvmx_helper_rgmii_link_get(int ipd_port);
106 * Configure an IPD/PKO port for the specified link state. This
107 * function does not influence auto negotiation at the PHY level.
108 * The passed link state must always match the link state returned
109 * by cvmx_helper_link_get(). It is normally best to use
110 * cvmx_helper_link_autoconf() instead.
112 * @param ipd_port IPD/PKO port to configure
113 * @param link_info The new link state
115 * @return Zero on success, negative on failure
117 extern int __cvmx_helper_rgmii_link_set(int ipd_port, cvmx_helper_link_info_t link_info);
121 * Configure a port for internal and/or external loopback. Internal loopback
122 * causes packets sent by the port to be received by Octeon. External loopback
123 * causes packets received from the wire to sent out again.
125 * @param ipd_port IPD/PKO port to loopback.
126 * @param enable_internal
127 * Non zero if you want internal loopback
128 * @param enable_external
129 * Non zero if you want external loopback
131 * @return Zero on success, negative on failure.
133 extern int __cvmx_helper_rgmii_configure_loopback(int ipd_port, int enable_internal, int enable_external);