/* * Copyright 2013 Freescale Semiconductor, Inc. * * SPDX-License-Identifier: GPL-2.0+ */ #ifndef __DDR_H__ #define __DDR_H__ dimm_params_t ddr_raw_timing = { .n_ranks = 2, .rank_density = 2147483648u, .capacity = 4294967296u, .primary_sdram_width = 64, .ec_sdram_width = 8, .registered_dimm = 0, .mirrored_dimm = 0, .n_row_addr = 15, .n_col_addr = 10, .n_banks_per_sdram_device = 8, .edc_config = 2, /* ECC */ .burst_lengths_bitmask = 0x0c, .tckmin_x_ps = 1071, .caslat_x = 0xfe << 4, /* 5,6,7,8,9,10,11 */ .taa_ps = 13125, .twr_ps = 15000, .trcd_ps = 13125, .trrd_ps = 6000, .trp_ps = 13125, .tras_ps = 34000, .trc_ps = 48125, .trfc_ps = 260000, .twtr_ps = 7500, .trtp_ps = 7500, .refresh_rate_ps = 7800000, .tfaw_ps = 35000, }; struct board_specific_parameters { u32 n_ranks; u32 datarate_mhz_high; u32 rank_gb; u32 clk_adjust; u32 wrlvl_start; u32 wrlvl_ctl_2; u32 wrlvl_ctl_3; }; /* * These tables contain all valid speeds we want to override with board * specific parameters. datarate_mhz_high values need to be in ascending order * for each n_ranks group. */ static const struct board_specific_parameters udimm0[] = { /* * memory controller 0 * num| hi| rank| clk| wrlvl | wrlvl * ranks| mhz| GB |adjst| start | ctl2 */ {2, 833, 4, 4, 6, 0x06060607, 0x08080807}, {2, 833, 0, 4, 6, 0x06060607, 0x08080807}, {2, 1350, 4, 4, 7, 0x0708080A, 0x0A0B0C09}, {2, 1350, 0, 4, 7, 0x0708080A, 0x0A0B0C09}, {2, 1666, 4, 4, 7, 0x0808090B, 0x0C0D0E0A}, {2, 1666, 0, 4, 7, 0x0808090B, 0x0C0D0E0A}, {1, 833, 4, 4, 6, 0x06060607, 0x08080807}, {1, 833, 0, 4, 6, 0x06060607, 0x08080807}, {1, 1350, 4, 4, 7, 0x0708080A, 0x0A0B0C09}, {1, 1350, 0, 4, 7, 0x0708080A, 0x0A0B0C09}, {1, 1666, 4, 4, 7, 0x0808090B, 0x0C0D0E0A}, {1, 1666, 0, 4, 7, 0x0808090B, 0x0C0D0E0A}, {} }; static const struct board_specific_parameters *udimms[] = { udimm0, }; #endif