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Diffstat (limited to 'sys/contrib/octeon-sdk/cvmx-qlm.h')
-rw-r--r-- | sys/contrib/octeon-sdk/cvmx-qlm.h | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/sys/contrib/octeon-sdk/cvmx-qlm.h b/sys/contrib/octeon-sdk/cvmx-qlm.h new file mode 100644 index 0000000..0f024ba --- /dev/null +++ b/sys/contrib/octeon-sdk/cvmx-qlm.h @@ -0,0 +1,165 @@ +/***********************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__ */ |