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49 * Functions for SRIO initialization, configuration,
52 * <hr>$Revision: 41586 $<hr>
54 #ifndef __CVMX_HELPER_SRIO_H__
55 #define __CVMX_HELPER_SRIO_H__
59 * Probe a SRIO interface and determine the number of ports
60 * connected to it. The SRIO interface should still be down after
63 * @param interface Interface to probe
65 * @return Number of ports on the interface. Zero to disable.
67 extern int __cvmx_helper_srio_probe(int interface);
68 static inline int __cvmx_helper_srio_enumerate(int interface)
70 return __cvmx_helper_srio_probe(interface);
75 * Bringup and enable a SRIO interface. After this call packet
76 * I/O should be fully functional. This is called with IPD
77 * enabled but PKO disabled.
79 * @param interface Interface to bring up
81 * @return Zero on success, negative on failure
83 extern int __cvmx_helper_srio_enable(int interface);
87 * Return the link state of an IPD/PKO port as returned by SRIO link status.
89 * @param ipd_port IPD/PKO port to query
93 extern cvmx_helper_link_info_t __cvmx_helper_srio_link_get(int ipd_port);
97 * Configure an IPD/PKO port for the specified link state. This
98 * function does not influence auto negotiation at the PHY level.
99 * The passed link state must always match the link state returned
100 * by cvmx_helper_link_get(). It is normally best to use
101 * cvmx_helper_link_autoconf() instead.
103 * @param ipd_port IPD/PKO port to configure
104 * @param link_info The new link state
106 * @return Zero on success, negative on failure
108 extern int __cvmx_helper_srio_link_set(int ipd_port, cvmx_helper_link_info_t link_info);