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/***********************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**************************************/
#include <bdk.h>
/**
* Load a "odt_*rank_config" structure
*
* @param cfg Config to fill
* @param ranks Number of ranks we're loading (1,2,4)
* @param node Node we're loading for
* @param dimm Which DIMM this is for
* @param lmc Which LMC this is for
*/
static void load_rank_data(dram_config_t *cfg, int ranks, int num_dimms, int lmc, bdk_node_t node)
{
/* Get a pointer to the structure we are filling */
dimm_odt_config_t *c;
switch (ranks)
{
case 1:
c = &cfg->config[lmc].odt_1rank_config[num_dimms - 1];
break;
case 2:
c = &cfg->config[lmc].odt_2rank_config[num_dimms - 1];
break;
case 4:
c = &cfg->config[lmc].odt_4rank_config[num_dimms - 1];
break;
default:
bdk_fatal("Unexpected number of ranks\n");
break;
}
/* Fill the global items */
c->odt_ena = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_DQX_CTL, ranks, num_dimms, lmc, node);
c->odt_mask = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_WODT_MASK, ranks, num_dimms, lmc, node);
/* Fill the per rank items */
int rank = 0;
c->odt_mask1.s.pasr_00 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE1_PASR, ranks, num_dimms, rank, lmc, node);
c->odt_mask1.s.asr_00 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE1_ASR, ranks, num_dimms, rank, lmc, node);
c->odt_mask1.s.srt_00 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE1_SRT, ranks, num_dimms, rank, lmc, node);
c->odt_mask1.s.rtt_wr_00 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE1_RTT_WR, ranks, num_dimms, rank, lmc, node);
c->odt_mask1.s.rtt_wr_00_ext = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE1_RTT_WR, ranks, num_dimms, rank, lmc, node) >> 2;
c->odt_mask1.s.dic_00 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE1_DIC, ranks, num_dimms, rank, lmc, node);
c->odt_mask1.s.rtt_nom_00 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE1_RTT_NOM, ranks, num_dimms, rank, lmc, node);
c->odt_mask1.s.db_output_impedance = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE1_DB_OUTPUT_IMPEDANCE, ranks, num_dimms, lmc, node);
rank = 1;
c->odt_mask1.s.pasr_01 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE1_PASR, ranks, num_dimms, rank, lmc, node);
c->odt_mask1.s.asr_01 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE1_ASR, ranks, num_dimms, rank, lmc, node);
c->odt_mask1.s.srt_01 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE1_SRT, ranks, num_dimms, rank, lmc, node);
c->odt_mask1.s.rtt_wr_01 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE1_RTT_WR, ranks, num_dimms, rank, lmc, node);
c->odt_mask1.s.rtt_wr_01_ext = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE1_RTT_WR, ranks, num_dimms, rank, lmc, node) >> 2;
c->odt_mask1.s.dic_01 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE1_DIC, ranks, num_dimms, rank, lmc, node);
c->odt_mask1.s.rtt_nom_01 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE1_RTT_NOM, ranks, num_dimms, rank, lmc, node);
rank = 2;
c->odt_mask1.s.pasr_10 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE1_PASR, ranks, num_dimms, rank, lmc, node);
c->odt_mask1.s.asr_10 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE1_ASR, ranks, num_dimms, rank, lmc, node);
c->odt_mask1.s.srt_10 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE1_SRT, ranks, num_dimms, rank, lmc, node);
c->odt_mask1.s.rtt_wr_10 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE1_RTT_WR, ranks, num_dimms, rank, lmc, node);
c->odt_mask1.s.rtt_wr_10_ext = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE1_RTT_WR, ranks, num_dimms, rank, lmc, node) >> 2;
c->odt_mask1.s.dic_10 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE1_DIC, ranks, num_dimms, rank, lmc, node);
c->odt_mask1.s.rtt_nom_10 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE1_RTT_NOM, ranks, num_dimms, rank, lmc, node);
rank = 3;
c->odt_mask1.s.pasr_11 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE1_PASR, ranks, num_dimms, rank, lmc, node);
c->odt_mask1.s.asr_11 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE1_ASR, ranks, num_dimms, rank, lmc, node);
c->odt_mask1.s.srt_11 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE1_SRT, ranks, num_dimms, rank, lmc, node);
c->odt_mask1.s.rtt_wr_11 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE1_RTT_WR, ranks, num_dimms, rank, lmc, node);
c->odt_mask1.s.rtt_wr_11_ext = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE1_RTT_WR, ranks, num_dimms, rank, lmc, node) >> 2;
c->odt_mask1.s.dic_11 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE1_DIC, ranks, num_dimms, rank, lmc, node);
c->odt_mask1.s.rtt_nom_11 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE1_RTT_NOM, ranks, num_dimms, rank, lmc, node);
rank = 0;
c->odt_mask2.s.rtt_park_00 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE2_RTT_PARK, ranks, num_dimms, rank, lmc, node);
c->odt_mask2.s.vref_value_00 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE2_VREF_VALUE, ranks, num_dimms, rank, lmc, node);
c->odt_mask2.s.vref_range_00 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE2_VREF_RANGE, ranks, num_dimms, rank, lmc, node);
c->odt_mask2.s.vrefdq_train_en = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE2_VREFDQ_TRAIN_EN, ranks, num_dimms, lmc, node);
rank = 1;
c->odt_mask2.s.rtt_park_01 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE2_RTT_PARK, ranks, num_dimms, rank, lmc, node);
c->odt_mask2.s.vref_value_01 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE2_VREF_VALUE, ranks, num_dimms, rank, lmc, node);
c->odt_mask2.s.vref_range_01 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE2_VREF_RANGE, ranks, num_dimms, rank, lmc, node);
rank = 2;
c->odt_mask2.s.rtt_park_10 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE2_RTT_PARK, ranks, num_dimms, rank, lmc, node);
c->odt_mask2.s.vref_value_10 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE2_VREF_VALUE, ranks, num_dimms, rank, lmc, node);
c->odt_mask2.s.vref_range_10 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE2_VREF_RANGE, ranks, num_dimms, rank, lmc, node);
rank = 3;
c->odt_mask2.s.rtt_park_11 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE2_RTT_PARK, ranks, num_dimms, rank, lmc, node);
c->odt_mask2.s.vref_value_11 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE2_VREF_VALUE, ranks, num_dimms, rank, lmc, node);
c->odt_mask2.s.vref_range_11 = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_MODE2_VREF_RANGE, ranks, num_dimms, rank, lmc, node);
/* Fill more global items */
c->qs_dic = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_RODT_CTL, ranks, num_dimms, lmc, node);
c->rodt_ctl = bdk_config_get_int(BDK_CONFIG_DDR_RANKS_RODT_MASK, ranks, num_dimms, lmc, node);
}
/**
* Load a DRAM configuration based on the current bdk-config settings
*
* @param node Node the DRAM config is for
*
* @return Pointer to __libdram_global_cfg, a global structure. Returns NULL if bdk-config
* lacks information about DRAM.
*/
const dram_config_t *libdram_config_load(bdk_node_t node)
{
dram_config_t *cfg = &__libdram_global_cfg;
const int MAX_LMCS = sizeof(cfg->config) / sizeof(cfg->config[0]);
/* Make all fields for the node default to zero */
memset(cfg, 0, sizeof(*cfg));
/* Fill the SPD data first as some parameters need to know the DRAM type
to lookup the correct values */
for (int lmc = 0; lmc < MAX_LMCS; lmc++)
{
for (int dimm = 0; dimm < DDR_CFG_T_MAX_DIMMS; dimm++)
{
int spd_addr = bdk_config_get_int(BDK_CONFIG_DDR_SPD_ADDR, dimm, lmc, node);
if (spd_addr)
{
cfg->config[lmc].dimm_config_table[dimm].spd_addr = spd_addr;
}
else
{
int spd_size;
const void *spd_data = bdk_config_get_blob(&spd_size, BDK_CONFIG_DDR_SPD_DATA, dimm, lmc, node);
if (spd_data && spd_size)
cfg->config[lmc].dimm_config_table[dimm].spd_ptr = spd_data;
}
}
}
/* Check that we know how to get DIMM inofmration. If not, return failure */
if (!cfg->config[0].dimm_config_table[0].spd_addr && !cfg->config[0].dimm_config_table[0].spd_ptr)
return NULL;
cfg->name = "Loaded from bdk-config";
for (int lmc = 0; lmc < MAX_LMCS; lmc++)
{
for (int num_dimms = 1; num_dimms <= DDR_CFG_T_MAX_DIMMS; num_dimms++)
{
load_rank_data(cfg, 1, num_dimms, lmc, node);
load_rank_data(cfg, 2, num_dimms, lmc, node);
load_rank_data(cfg, 4, num_dimms, lmc, node);
}
ddr_configuration_t *c = &cfg->config[lmc];
ddr3_custom_config_t *custom = &c->custom_lmc_config;
custom->min_rtt_nom_idx = bdk_config_get_int(BDK_CONFIG_DDR_CUSTOM_MIN_RTT_NOM_IDX, lmc, node);
custom->max_rtt_nom_idx = bdk_config_get_int(BDK_CONFIG_DDR_CUSTOM_MAX_RTT_NOM_IDX, lmc, node);
custom->min_rodt_ctl = bdk_config_get_int(BDK_CONFIG_DDR_CUSTOM_MIN_RODT_CTL, lmc, node);
custom->max_rodt_ctl = bdk_config_get_int(BDK_CONFIG_DDR_CUSTOM_MAX_RODT_CTL, lmc, node);
custom->ck_ctl = bdk_config_get_int(BDK_CONFIG_DDR_CUSTOM_CK_CTL, lmc, node);
custom->cmd_ctl = bdk_config_get_int(BDK_CONFIG_DDR_CUSTOM_CMD_CTL, lmc, node);
custom->ctl_ctl = bdk_config_get_int(BDK_CONFIG_DDR_CUSTOM_CTL_CTL, lmc, node);
custom->min_cas_latency = bdk_config_get_int(BDK_CONFIG_DDR_CUSTOM_MIN_CAS_LATENCY, lmc, node);
custom->offset_en = bdk_config_get_int(BDK_CONFIG_DDR_CUSTOM_OFFSET_EN, lmc, node);
custom->offset_udimm = bdk_config_get_int(BDK_CONFIG_DDR_CUSTOM_OFFSET, "UDIMM", lmc, node);
custom->offset_rdimm = bdk_config_get_int(BDK_CONFIG_DDR_CUSTOM_OFFSET, "RDIMM", lmc, node);
custom->rlevel_compute = bdk_config_get_int(BDK_CONFIG_DDR_CUSTOM_RLEVEL_COMPUTE, lmc, node);
custom->rlevel_comp_offset_udimm = bdk_config_get_int(BDK_CONFIG_DDR_CUSTOM_RLEVEL_COMP_OFFSET, "UDIMM", lmc, node);
custom->rlevel_comp_offset_rdimm = bdk_config_get_int(BDK_CONFIG_DDR_CUSTOM_RLEVEL_COMP_OFFSET, "RDIMM", lmc, node);
custom->ddr2t_udimm = bdk_config_get_int(BDK_CONFIG_DDR_CUSTOM_DDR2T, "UDIMM", lmc, node);
custom->ddr2t_rdimm = bdk_config_get_int(BDK_CONFIG_DDR_CUSTOM_DDR2T, "RDIMM", lmc, node);
custom->disable_sequential_delay_check = bdk_config_get_int(BDK_CONFIG_DDR_CUSTOM_DISABLE_SEQUENTIAL_DELAY_CHECK, lmc, node);
custom->maximum_adjacent_rlevel_delay_increment
= bdk_config_get_int(BDK_CONFIG_DDR_CUSTOM_MAXIMUM_ADJACENT_RLEVEL_DELAY_INCREMENT, lmc, node);
custom->parity = bdk_config_get_int(BDK_CONFIG_DDR_CUSTOM_PARITY, lmc, node);
custom->fprch2 = bdk_config_get_int(BDK_CONFIG_DDR_CUSTOM_FPRCH2, lmc, node);
custom->mode32b = bdk_config_get_int(BDK_CONFIG_DDR_CUSTOM_MODE32B, lmc, node);
custom->measured_vref = bdk_config_get_int(BDK_CONFIG_DDR_CUSTOM_MEASURED_VREF, lmc, node);
/* CN80XX only supports 32bit mode */
if (cavium_is_altpkg(CAVIUM_CN81XX))
custom->mode32b = 1;
/* Loop through 8 bytes, plus ecc byte */
#define NUM_BYTES 9 /* Max bytes on LMC (8 plus ECC) */
static int8_t dll_write_offset[NUM_BYTES];
static int8_t dll_read_offset[NUM_BYTES];
for (int b = 0; b < NUM_BYTES; b++)
{
dll_write_offset[b] = bdk_config_get_int(BDK_CONFIG_DDR_CUSTOM_DLL_WRITE_OFFSET, b, lmc, node);
dll_read_offset[b] = bdk_config_get_int(BDK_CONFIG_DDR_CUSTOM_DLL_READ_OFFSET, b, lmc, node);
}
custom->dll_write_offset = dll_write_offset;
custom->dll_read_offset = dll_read_offset;
}
int is_ddr4 = (cfg->config[0].odt_1rank_config[0].odt_mask2.u != 0);
int speed = bdk_config_get_int(BDK_CONFIG_DDR_SPEED, node);
switch (speed)
{
case 0: // AUTO
cfg->ddr_clock_hertz = 0;
break;
case 800:
case 1600:
case 2400:
cfg->ddr_clock_hertz = (uint64_t)speed * 1000000 / 2;
break;
case 666:
cfg->ddr_clock_hertz = 333333333;
break;
case 1066:
cfg->ddr_clock_hertz = 533333333;
break;
case 1333:
cfg->ddr_clock_hertz = 666666666;
break;
case 1866:
if (is_ddr4)
cfg->ddr_clock_hertz = 940000000;
else
cfg->ddr_clock_hertz = 933333333;
break;
case 2133:
cfg->ddr_clock_hertz = 1050000000;
break;
default:
bdk_warn("Unsupported DRAM speed of %d MT/s\n", speed);
cfg->ddr_clock_hertz = speed * 1000000 / 2;
break;
}
return cfg;
};
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