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/*
* Copyright 2013 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <i2c.h>
#include <asm/fsl_law.h>
#include <fsl_ddr_sdram.h>
#include <fsl_ddr_dimm_params.h>
#include "cpld.h"
#define C29XPCIE_HARDWARE_REVA 0x40
/*
* Micron MT41J128M16HA-15E
* */
dimm_params_t ddr_raw_timing = {
.n_ranks = 1,
.rank_density = 536870912u,
.capacity = 536870912u,
.primary_sdram_width = 32,
.ec_sdram_width = 8,
.registered_dimm = 0,
.mirrored_dimm = 0,
.n_row_addr = 14,
.n_col_addr = 10,
.n_banks_per_sdram_device = 8,
.edc_config = 2,
.burst_lengths_bitmask = 0x0c,
.tckmin_x_ps = 1650,
.caslat_x = 0x7e << 4, /* 5,6,7,8,9,10 */
.taa_ps = 14050,
.twr_ps = 15000,
.trcd_ps = 13500,
.trrd_ps = 75000,
.trp_ps = 13500,
.tras_ps = 40000,
.trc_ps = 49500,
.trfc_ps = 160000,
.twtr_ps = 75000,
.trtp_ps = 75000,
.refresh_rate_ps = 7800000,
.tfaw_ps = 30000,
};
int fsl_ddr_get_dimm_params(dimm_params_t *pdimm,
unsigned int controller_number,
unsigned int dimm_number)
{
const char dimm_model[] = "Fixed DDR on board";
if ((controller_number == 0) && (dimm_number == 0)) {
memcpy(pdimm, &ddr_raw_timing, sizeof(dimm_params_t));
memset(pdimm->mpart, 0, sizeof(pdimm->mpart));
memcpy(pdimm->mpart, dimm_model, sizeof(dimm_model) - 1);
}
return 0;
}
void fsl_ddr_board_options(memctl_options_t *popts,
dimm_params_t *pdimm,
unsigned int ctrl_num)
{
struct cpld_data *cpld_data = (void *)(CONFIG_SYS_CPLD_BASE);
int i;
popts->clk_adjust = 4;
popts->cpo_override = 0x1f;
popts->write_data_delay = 4;
popts->half_strength_driver_enable = 1;
popts->bstopre = 0x3cf;
popts->quad_rank_present = 1;
popts->rtt_override = 1;
popts->rtt_override_value = 1;
popts->dynamic_power = 1;
/* Write leveling override */
popts->wrlvl_en = 1;
popts->wrlvl_override = 1;
popts->wrlvl_sample = 0xf;
popts->wrlvl_start = 0x4;
popts->trwt_override = 1;
popts->trwt = 0;
if (in_8(&cpld_data->hwver) == C29XPCIE_HARDWARE_REVA)
popts->ecc_mode = 0;
for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) {
popts->cs_local_opts[i].odt_rd_cfg = FSL_DDR_ODT_NEVER;
popts->cs_local_opts[i].odt_wr_cfg = FSL_DDR_ODT_CS;
}
}
void get_spd(generic_spd_eeprom_t *spd, u8 i2c_address)
{
int ret = i2c_read(i2c_address, 0, 2, (uint8_t *)spd,
sizeof(generic_spd_eeprom_t));
if (ret) {
printf("DDR: failed to read SPD from address %u\n",
i2c_address);
memset(spd, 0, sizeof(generic_spd_eeprom_t));
}
}
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