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/***********************license start***************
* Copyright (c) 2011 Cavium Inc. (support@cavium.com). All rights
* reserved.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of Cavium Inc. nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
* This Software, including technical data, may be subject to U.S. export control
* laws, including the U.S. Export Administration Act and its associated
* regulations, and may be subject to export or import regulations in other
* countries.
* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
* AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR
* WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
* THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR
* DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
* SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
* MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
* VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
* CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR
* PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
***********************license end**************************************/
/**
* @file
*
* Helper utilities for qlm.
*
* <hr>$Revision: 70030 $<hr>
*/
#ifndef __CVMX_QLM_H__
#define __CVMX_QLM_H__
#include "cvmx.h"
typedef struct
{
const char *name;
int stop_bit;
int start_bit;
} __cvmx_qlm_jtag_field_t;
/**
* Return the number of QLMs supported by the chip
*
* @return Number of QLMs
*/
extern int cvmx_qlm_get_num(void);
/**
* Return the qlm number based on the interface
*
* @param interface Interface to look up
*/
extern int cvmx_qlm_interface(int interface);
/**
* Return number of lanes for a given qlm
*
* @return Number of lanes
*/
extern int cvmx_qlm_get_lanes(int qlm);
/**
* Get the QLM JTAG fields based on Octeon model on the supported chips.
*
* @return qlm_jtag_field_t structure
*/
extern const __cvmx_qlm_jtag_field_t *cvmx_qlm_jtag_get_field(void);
/**
* Get the QLM JTAG length by going through qlm_jtag_field for each
* Octeon model that is supported
*
* @return return the length.
*/
extern int cvmx_qlm_jtag_get_length(void);
/**
* Initialize the QLM layer
*/
extern void cvmx_qlm_init(void);
/**
* Get a field in a QLM JTAG chain
*
* @param qlm QLM to get
* @param lane Lane in QLM to get
* @param name String name of field
*
* @return JTAG field value
*/
extern uint64_t cvmx_qlm_jtag_get(int qlm, int lane, const char *name);
/**
* Set a field in a QLM JTAG chain
*
* @param qlm QLM to set
* @param lane Lane in QLM to set, or -1 for all lanes
* @param name String name of field
* @param value Value of the field
*/
extern void cvmx_qlm_jtag_set(int qlm, int lane, const char *name, uint64_t value);
/**
* Errata G-16094: QLM Gen2 Equalizer Default Setting Change.
* CN68XX pass 1.x and CN66XX pass 1.x QLM tweak. This function tweaks the
* JTAG setting for a QLMs to run better at 5 and 6.25Ghz.
*/
extern void __cvmx_qlm_speed_tweak(void);
/**
* Errata G-16174: QLM Gen2 PCIe IDLE DAC change.
* CN68XX pass 1.x, CN66XX pass 1.x and CN63XX pass 1.0-2.2 QLM tweak.
* This function tweaks the JTAG setting for a QLMs for PCIe to run better.
*/
extern void __cvmx_qlm_pcie_idle_dac_tweak(void);
#ifndef CVMX_BUILD_FOR_LINUX_HOST
/**
* Get the speed (Gbaud) of the QLM in Mhz.
*
* @param qlm QLM to examine
*
* @return Speed in Mhz
*/
extern int cvmx_qlm_get_gbaud_mhz(int qlm);
#endif
/*
* Read QLM and return status based on CN66XX.
* @return Return 1 if QLM is SGMII
* 2 if QLM is XAUI
* 3 if QLM is PCIe gen2 / gen1
* 4 if QLM is SRIO 1x4 short / long
* 5 if QLM is SRIO 2x2 short / long
* 6 is reserved
* 7 if QLM is PCIe 1x2 gen2 / gen1
* 8 if QLM is PCIe 2x1 gen2 / gen1
* 9 if QLM is ILK
* 10 if QLM is RXAUI
* -1 otherwise
*/
extern int cvmx_qlm_get_status(int qlm);
#endif /* __CVMX_QLM_H__ */
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