#ifndef __CB_BDK_DRAM_CONFIG_H__ #define __CB_BDK_DRAM_CONFIG_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 configuring DRAM. * *
$Revision: 49448 $
* * @defgroup dram DRAM related functions * @{ */ #if 0 /* FIXME(dhendrix): this was cavium's #include */ #include "../libdram/libdram.h" #endif #include /** * Lookup a DRAM configuration by name and intialize dram with it * * @param node Node to configure * @param ddr_clock_override * If non zero, override the DRAM frequency specified in the config with * this value * * @return Amount of DRAM in MB, or negative on failure */ extern int bdk_dram_config(int node, int ddr_clock_override); /** * Do DRAM configuration tuning * * @param node Node to tune * * @return Success or Fail */ extern int bdk_dram_tune(int node); /** * Do DRAM Margin all tests * * @param node Node to tune * * @return None */ extern void bdk_dram_margin(int node); /** * Get the amount of DRAM configured for a node. This is read from the LMC * controller after DRAM is setup. * * @param node Node to query * * @return Size in megabytes */ extern uint64_t bdk_dram_get_size_mbytes(int node); /** * Return the string of info about the current node's DRAM configuration. * * @param node node to retrieve * * @return String or NULL */ extern const char* bdk_dram_get_info_string(int node); /** * Return the highest address currently used by the BDK. This address will * be about 4MB above the top of the BDK to make sure small growths between the * call and its use don't cause corruption. Any call to memory allocation can * change this value. * * @return Size of the BDK in bytes */ extern uint64_t bdk_dram_get_top_of_bdk(void); extern int __bdk_dram_get_num_lmc(bdk_node_t node); extern int __bdk_dram_is_ddr4(bdk_node_t node, int lmc); extern int __bdk_dram_is_rdimm(bdk_node_t node, int lmc); extern uint32_t __bdk_dram_get_row_mask(bdk_node_t node, int lmc); extern uint32_t __bdk_dram_get_col_mask(bdk_node_t node, int lmc); extern int __bdk_dram_get_num_bank_bits(bdk_node_t node, int lmc); /** @} */ #endif /* !__CB_BDK_DRAM_CONFIG_H__ */