mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-14 08:57:58 +00:00
73 lines
1.8 KiB
C
73 lines
1.8 KiB
C
|
/* SPDX-License-Identifier: GPL-2.0 */
|
||
|
|
/*
|
||
|
|
* Copyright (C) 2020 Marvell International Ltd.
|
||
|
|
*
|
||
|
|
* Functions for SRIO initialization, configuration,
|
||
|
|
* and monitoring.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __CVMX_HELPER_SRIO_H__
|
||
|
|
#define __CVMX_HELPER_SRIO_H__
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @INTERNAL
|
||
|
|
* Convert interface number to sRIO link number
|
||
|
|
* per SoC model.
|
||
|
|
*
|
||
|
|
* @param xiface Interface to convert
|
||
|
|
*
|
||
|
|
* @return Srio link number
|
||
|
|
*/
|
||
|
|
int __cvmx_helper_srio_port(int xiface);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @INTERNAL
|
||
|
|
* Probe a SRIO interface and determine the number of ports
|
||
|
|
* connected to it. The SRIO interface should still be down after
|
||
|
|
* this call.
|
||
|
|
*
|
||
|
|
* @param xiface Interface to probe
|
||
|
|
*
|
||
|
|
* @return Number of ports on the interface. Zero to disable.
|
||
|
|
*/
|
||
|
|
int __cvmx_helper_srio_probe(int xiface);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @INTERNAL
|
||
|
|
* Bringup and enable a SRIO interface. After this call packet
|
||
|
|
* I/O should be fully functional. This is called with IPD
|
||
|
|
* enabled but PKO disabled.
|
||
|
|
*
|
||
|
|
* @param xiface Interface to bring up
|
||
|
|
*
|
||
|
|
* @return Zero on success, negative on failure
|
||
|
|
*/
|
||
|
|
int __cvmx_helper_srio_enable(int xiface);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @INTERNAL
|
||
|
|
* Return the link state of an IPD/PKO port as returned by SRIO link status.
|
||
|
|
*
|
||
|
|
* @param ipd_port IPD/PKO port to query
|
||
|
|
*
|
||
|
|
* @return Link state
|
||
|
|
*/
|
||
|
|
cvmx_helper_link_info_t __cvmx_helper_srio_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_srio_link_set(int ipd_port, cvmx_helper_link_info_t link_info);
|
||
|
|
|
||
|
|
#endif
|