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- /* SPDX-License-Identifier: GPL-2.0 */
- /*
- * Copyright (C) 2020 Marvell International Ltd.
- *
- * Functions for RGMII/GMII/MII initialization, configuration,
- * and monitoring.
- */
- #ifndef __CVMX_HELPER_RGMII_H__
- #define __CVMX_HELPER_RGMII_H__
- /**
- * @INTERNAL
- * Probe RGMII ports and determine the number present
- *
- * @param xiface Interface to probe
- *
- * Return: Number of RGMII/GMII/MII ports (0-4).
- */
- int __cvmx_helper_rgmii_probe(int xiface);
- /**
- * Put an RGMII interface in loopback mode. Internal packets sent
- * out will be received back again on the same port. Externally
- * received packets will echo back out.
- *
- * @param port IPD port number to loop.
- */
- void cvmx_helper_rgmii_internal_loopback(int port);
- /**
- * @INTERNAL
- * Configure all of the ASX, GMX, and PKO regsiters required
- * to get RGMII to function on the supplied interface.
- *
- * @param xiface PKO Interface to configure (0 or 1)
- *
- * Return: Zero on success
- */
- int __cvmx_helper_rgmii_enable(int xiface);
- /**
- * @INTERNAL
- * Return the link state of an IPD/PKO port as returned by
- * auto negotiation. The result of this function may not match
- * Octeon's link config if auto negotiation has changed since
- * the last call to cvmx_helper_link_set().
- *
- * @param ipd_port IPD/PKO port to query
- *
- * Return: Link state
- */
- cvmx_helper_link_info_t __cvmx_helper_gmii_link_get(int ipd_port);
- /**
- * @INTERNAL
- * Return the link state of an IPD/PKO port as returned by
- * auto negotiation. The result of this function may not match
- * Octeon's link config if auto negotiation has changed since
- * the last call to cvmx_helper_link_set().
- *
- * @param ipd_port IPD/PKO port to query
- *
- * Return: Link state
- */
- cvmx_helper_link_info_t __cvmx_helper_rgmii_link_get(int ipd_port);
- /**
- * @INTERNAL
- * Configure an IPD/PKO port for the specified link state. This
- * function does not influence auto negotiation at the PHY level.
- * The passed link state must always match the link state returned
- * by cvmx_helper_link_get(). It is normally best to use
- * cvmx_helper_link_autoconf() instead.
- *
- * @param ipd_port IPD/PKO port to configure
- * @param link_info The new link state
- *
- * Return: Zero on success, negative on failure
- */
- int __cvmx_helper_rgmii_link_set(int ipd_port, cvmx_helper_link_info_t link_info);
- /**
- * @INTERNAL
- * Configure a port for internal and/or external loopback. Internal loopback
- * causes packets sent by the port to be received by Octeon. External loopback
- * causes packets received from the wire to sent out again.
- *
- * @param ipd_port IPD/PKO port to loopback.
- * @param enable_internal
- * Non zero if you want internal loopback
- * @param enable_external
- * Non zero if you want external loopback
- *
- * Return: Zero on success, negative on failure.
- */
- int __cvmx_helper_rgmii_configure_loopback(int ipd_port, int enable_internal, int enable_external);
- #endif
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