1 /* 2 * Copyright 2013 Freescale Semiconductor, Inc. 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #include <common.h> 8 #include <asm/mmu.h> 9 #include <asm/immap_85xx.h> 10 #include <asm/processor.h> 11 #include <fsl_ddr_sdram.h> 12 #include <fsl_ddr_dimm_params.h> 13 #include <asm/io.h> 14 #include <asm/fsl_law.h> 15 16 DECLARE_GLOBAL_DATA_PTR; 17 18 /* CONFIG_SYS_DDR_RAW_TIMING */ 19 /* 20 * Hynix H5TQ1G83TFR-H9C 21 */ 22 dimm_params_t ddr_raw_timing = { 23 .n_ranks = 1, 24 .rank_density = 536870912u, 25 .capacity = 536870912u, 26 .primary_sdram_width = 32, 27 .ec_sdram_width = 0, 28 .registered_dimm = 0, 29 .mirrored_dimm = 0, 30 .n_row_addr = 14, 31 .n_col_addr = 10, 32 .n_banks_per_sdram_device = 8, 33 .edc_config = 0, 34 .burst_lengths_bitmask = 0x0c, 35 36 .tckmin_x_ps = 1875, 37 .caslat_x = 0x1e << 4, /* 5,6,7,8 */ 38 .taa_ps = 13125, 39 .twr_ps = 18000, 40 .trcd_ps = 13125, 41 .trrd_ps = 7500, 42 .trp_ps = 13125, 43 .tras_ps = 37500, 44 .trc_ps = 50625, 45 .trfc_ps = 160000, 46 .twtr_ps = 7500, 47 .trtp_ps = 7500, 48 .refresh_rate_ps = 7800000, 49 .tfaw_ps = 37500, 50 }; 51 52 int fsl_ddr_get_dimm_params(dimm_params_t *pdimm, 53 unsigned int controller_number, 54 unsigned int dimm_number) 55 { 56 const char dimm_model[] = "Fixed DDR on board"; 57 58 if ((controller_number == 0) && (dimm_number == 0)) { 59 memcpy(pdimm, &ddr_raw_timing, sizeof(dimm_params_t)); 60 memset(pdimm->mpart, 0, sizeof(pdimm->mpart)); 61 memcpy(pdimm->mpart, dimm_model, sizeof(dimm_model) - 1); 62 } 63 64 return 0; 65 } 66 67 void fsl_ddr_board_options(memctl_options_t *popts, 68 dimm_params_t *pdimm, 69 unsigned int ctrl_num) 70 { 71 int i; 72 popts->clk_adjust = 6; 73 popts->cpo_override = 0x1f; 74 popts->write_data_delay = 2; 75 popts->half_strength_driver_enable = 1; 76 /* Write leveling override */ 77 popts->wrlvl_en = 1; 78 popts->wrlvl_override = 1; 79 popts->wrlvl_sample = 0xf; 80 popts->wrlvl_start = 0x8; 81 popts->trwt_override = 1; 82 popts->trwt = 0; 83 84 for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) { 85 popts->cs_local_opts[i].odt_rd_cfg = FSL_DDR_ODT_NEVER; 86 popts->cs_local_opts[i].odt_wr_cfg = FSL_DDR_ODT_CS; 87 } 88 } 89