mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-08 14:14:32 +00:00
100 lines
2.9 KiB
C
100 lines
2.9 KiB
C
|
/* 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
|