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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);
71 * Bringup and enable a SRIO interface. After this call packet
72 * I/O should be fully functional. This is called with IPD
73 * enabled but PKO disabled.
75 * @param interface Interface to bring up
77 * @return Zero on success, negative on failure
79 extern int __cvmx_helper_srio_enable(int interface);
83 * Return the link state of an IPD/PKO port as returned by SRIO link status.
85 * @param ipd_port IPD/PKO port to query
89 extern cvmx_helper_link_info_t __cvmx_helper_srio_link_get(int ipd_port);
93 * Configure an IPD/PKO port for the specified link state. This
94 * function does not influence auto negotiation at the PHY level.
95 * The passed link state must always match the link state returned
96 * by cvmx_helper_link_get(). It is normally best to use
97 * cvmx_helper_link_autoconf() instead.
99 * @param ipd_port IPD/PKO port to configure
100 * @param link_info The new link state
102 * @return Zero on success, negative on failure
104 extern int __cvmx_helper_srio_link_set(int ipd_port, cvmx_helper_link_info_t link_info);