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/*
* 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 = 1,
.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 = 0x2fe << 4, /* 5,6,7,8,9,10,11,13 */
.taa_ps = 13910,
.twr_ps = 15000,
.trcd_ps = 13910,
.trrd_ps = 6000,
.trp_ps = 13910,
.tras_ps = 34000,
.trc_ps = 48910,
.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;
u32 cpo;
u32 write_data_delay;
u32 force_2t;
};
/*
* 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 | wrlvl | cpo |wrdata|2T
* ranks| mhz| GB |adjst| start | ctl2 | ctl3 | |delay |
*/
{2, 1066, 4, 8, 4, 0x05070609, 0x08090a08, 0xff, 2, 0},
{2, 1350, 4, 4, 8, 0x0809090b, 0x0c0c0d0a, 0xff, 2, 0},
{2, 1350, 0, 5, 7, 0x0709090b, 0x0c0c0d09, 0xff, 2, 0},
{2, 1666, 4, 4, 8, 0x080a0a0d, 0x0d10100b, 0xff, 2, 0},
{2, 1666, 0, 5, 7, 0x080a0a0c, 0x0d0d0e0a, 0xff, 2, 0},
{}
};
static const struct board_specific_parameters *udimms[] = {
udimm0,
};
#endif
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