/***********************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> /* FIXME(dhendrix): added */ #include <console/console.h> /* for die() */ #include <string.h> #include <libbdk-arch/bdk-model.h> #include <libbdk-hal/bdk-config.h> #include <soc/twsi.h> #include <device/i2c_simple.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 = ARRAY_SIZE(cfg->config); /* 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 { #if 0 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; #endif } } } /* 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; };