#ifndef __CB_BDK_FUSE_H__ #define __CB_BDK_FUSE_H__ /***********************license start*********************************** * Copyright (c) 2003-2017 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 * * Functions for reading Cavium chip fuses. * *
$Revision: 49448 $
*/ /** * Read a single fuse bit * * @param fuse Fuse number (0-1024) * * @return fuse value: 0 or 1 */ extern int bdk_fuse_read(bdk_node_t node, int fuse); /** * Read a range of fuses * * @param node Node to read from * @param fuse Fuse number * @param width Number of fuses to read, max of 64 * * @return Fuse value */ extern uint64_t bdk_fuse_read_range(bdk_node_t node, int fuse, int width); /** * Soft blow a fuse. Soft blown fuses keep there new value over soft resets, but * not power cycles. * * @param node Node to blow * @param fuse Fuse to blow * * @return Zero on success, negative on failure */ extern int bdk_fuse_soft_blow(bdk_node_t node, int fuse); /** * Read a single fuse bit from the field set (FUSF) * * @param fuse Fuse number (0-1024) * * @return fuse value: 0 or 1 */ extern int bdk_fuse_field_read(bdk_node_t node, int fuse); /** * Soft blow a fuse in the field set (FUSF). Soft blown fuses * keep there new value over soft resets, but not power cycles. * * @param node Node to blow * @param fuse Fuse to blow * * @return Zero on success, negative on failure */ extern int bdk_fuse_field_soft_blow(bdk_node_t node, int fuse); /** * Hard blow fuses in the field set (FUSF). Up to 128 fuses in a bank * are blown at the same time * * @param node Node to blow * @param start_fuse First fuses to blow. Must be on a 128 bit boundary. * This fuse is blown to match the LSB of fuse 0. * @param fuses0 First 64 fuse values. Bits with a 1 are blown. LSB * of fuses0 maps to start_fuse. MSB of fuses0 maps to * (start_fuse + 63). * @param fuses1 Second 64 fuse values. Bits with a 1 are blown. LSB * of fuses1 maps to (start_fuse + 64). MSB of fuses1 * maps to (start_fuse + 127). * * @return Zero on success, negative on failure */ extern int bdk_fuse_field_hard_blow(bdk_node_t node, int start_fuse, uint64_t fuses0, uint64_t fuses1); #endif