1210284Sjmallett/***********************license start*************** 2232812Sjmallett * Copyright (c) 2003-2010 Cavium Inc. (support@cavium.com). All rights 3215990Sjmallett * reserved. 4210284Sjmallett * 5210284Sjmallett * 6215990Sjmallett * Redistribution and use in source and binary forms, with or without 7215990Sjmallett * modification, are permitted provided that the following conditions are 8215990Sjmallett * met: 9210284Sjmallett * 10215990Sjmallett * * Redistributions of source code must retain the above copyright 11215990Sjmallett * notice, this list of conditions and the following disclaimer. 12210284Sjmallett * 13215990Sjmallett * * Redistributions in binary form must reproduce the above 14215990Sjmallett * copyright notice, this list of conditions and the following 15215990Sjmallett * disclaimer in the documentation and/or other materials provided 16215990Sjmallett * with the distribution. 17215990Sjmallett 18232812Sjmallett * * Neither the name of Cavium Inc. nor the names of 19215990Sjmallett * its contributors may be used to endorse or promote products 20215990Sjmallett * derived from this software without specific prior written 21215990Sjmallett * permission. 22215990Sjmallett 23215990Sjmallett * This Software, including technical data, may be subject to U.S. export control 24215990Sjmallett * laws, including the U.S. Export Administration Act and its associated 25215990Sjmallett * regulations, and may be subject to export or import regulations in other 26215990Sjmallett * countries. 27215990Sjmallett 28215990Sjmallett * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS" 29232812Sjmallett * AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR 30215990Sjmallett * WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO 31215990Sjmallett * THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR 32215990Sjmallett * DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM 33215990Sjmallett * SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE, 34215990Sjmallett * MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF 35215990Sjmallett * VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR 36215990Sjmallett * CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR 37215990Sjmallett * PERFORMANCE OF THE SOFTWARE LIES WITH YOU. 38210284Sjmallett ***********************license end**************************************/ 39210284Sjmallett 40210284Sjmallett 41210284Sjmallett 42210284Sjmallett 43210284Sjmallett 44210284Sjmallett 45215990Sjmallett 46210284Sjmallett/** 47210284Sjmallett * @file 48210284Sjmallett * 49210284Sjmallett * Fixes and workaround for Octeon chip errata. This file 50210284Sjmallett * contains functions called by cvmx-helper to workaround known 51210284Sjmallett * chip errata. For the most part, code doesn't need to call 52210284Sjmallett * these functions directly. 53210284Sjmallett * 54232812Sjmallett * <hr>$Revision: 70030 $<hr> 55210284Sjmallett */ 56210284Sjmallett#ifndef __CVMX_HELPER_ERRATA_H__ 57210284Sjmallett#define __CVMX_HELPER_ERRATA_H__ 58210284Sjmallett 59210284Sjmallett/** 60210284Sjmallett * @INTERNAL 61210284Sjmallett * Function to adjust internal IPD pointer alignments 62210284Sjmallett * 63210284Sjmallett * @return 0 on success 64210284Sjmallett * !0 on failure 65210284Sjmallett */ 66210284Sjmallettextern int __cvmx_helper_errata_fix_ipd_ptr_alignment(void); 67210284Sjmallett 68210284Sjmallett/** 69210284Sjmallett * This function needs to be called on all Octeon chips with 70210284Sjmallett * errata PKI-100. 71210284Sjmallett * 72210284Sjmallett * The Size field is 8 too large in WQE and next pointers 73210284Sjmallett * 74210284Sjmallett * The Size field generated by IPD is 8 larger than it should 75210284Sjmallett * be. The Size field is <55:40> of both: 76210284Sjmallett * - WORD3 in the work queue entry, and 77210284Sjmallett * - the next buffer pointer (which precedes the packet data 78210284Sjmallett * in each buffer). 79210284Sjmallett * 80210284Sjmallett * @param work Work queue entry to fix 81210284Sjmallett * @return Zero on success. Negative on failure 82210284Sjmallett */ 83210284Sjmallettextern int cvmx_helper_fix_ipd_packet_chain(cvmx_wqe_t *work); 84210284Sjmallett 85210284Sjmallett/** 86210284Sjmallett * Due to errata G-720, the 2nd order CDR circuit on CN52XX pass 87210284Sjmallett * 1 doesn't work properly. The following code disables 2nd order 88210284Sjmallett * CDR for the specified QLM. 89210284Sjmallett * 90210284Sjmallett * @param qlm QLM to disable 2nd order CDR for. 91210284Sjmallett */ 92210284Sjmallettextern void __cvmx_helper_errata_qlm_disable_2nd_order_cdr(int qlm); 93210284Sjmallett#endif 94