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