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/*
* Copyright 2018-2022 NXP
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <assert.h>
#include <errno.h>
#include <string.h>
#include <common/debug.h>
#include <ddr.h>
#include <lib/utils.h>
#include <errata.h>
#include <platform_def.h>
#ifdef CONFIG_STATIC_DDR
const struct ddr_cfg_regs static_1600 = {
.cs[0].config = U(0x80010412),
.cs[0].bnds = U(0x7F),
.sdram_cfg[0] = U(0xE50C0008),
.sdram_cfg[1] = U(0x00401010),
.sdram_cfg[2] = U(0x1),
.timing_cfg[0] = U(0xFA550018),
.timing_cfg[1] = U(0xBAB40C52),
.timing_cfg[2] = U(0x0048C11C),
.timing_cfg[3] = U(0x01111000),
.timing_cfg[4] = U(0x00000002),
.timing_cfg[5] = U(0x03401400),
.timing_cfg[6] = U(0x0),
.timing_cfg[7] = U(0x23300000),
.timing_cfg[8] = U(0x02116600),
.timing_cfg[9] = U(0x0),
.dq_map[0] = U(0x0),
.dq_map[1] = U(0x0),
.dq_map[2] = U(0x0),
.dq_map[3] = U(0x0),
.sdram_mode[0] = U(0x01010210),
.sdram_mode[1] = U(0x0),
.sdram_mode[8] = U(0x00000500),
.sdram_mode[9] = U(0x04000000),
.interval = U(0x18600618),
.zq_cntl = U(0x8A090705),
.ddr_sr_cntr = U(0x0),
.clk_cntl = U(0x2000000),
.cdr[0] = U(0x80040000),
.cdr[1] = U(0xC1),
.wrlvl_cntl[0] = U(0x86550607),
.wrlvl_cntl[1] = U(0x07070708),
.wrlvl_cntl[2] = U(0x0808088),
};
long long board_static_ddr(struct ddr_info *priv)
{
memcpy(&priv->ddr_reg, &static_1600, sizeof(static_1600));
return 0x80000000ULL;
}
#else /* ifndef CONFIG_STATIC_DDR */
static const struct rc_timing rcz[] = {
{U(1600), U(8), U(7)},
{U(2100), U(8), U(7)},
{}
};
static const struct board_timing ram[] = {
{U(0x1f), rcz, U(0x01010101), U(0x01010101)},
};
int ddr_board_options(struct ddr_info *priv)
{
int ret;
struct memctl_opt *popts = &priv->opt;
ret = cal_board_params(priv, ram, ARRAY_SIZE(ram));
if (ret != 0) {
return ret;
}
popts->bstopre = 0;
popts->half_strength_drive_en = 1;
popts->cpo_sample = U(0x46);
popts->ddr_cdr1 = DDR_CDR1_DHC_EN | DDR_CDR1_ODT(DDR_CDR_ODT_50ohm);
popts->ddr_cdr2 = DDR_CDR2_ODT(DDR_CDR_ODT_50ohm) |
DDR_CDR2_VREF_TRAIN_EN;
popts->output_driver_impedance = 1;
return 0;
}
/* DDR model number: MT40A512M16JY-083E:B */
struct dimm_params ddr_raw_timing = {
.n_ranks = U(1),
.rank_density = ULL(4294967296),
.capacity = ULL(4294967296),
.primary_sdram_width = U(64),
.ec_sdram_width = U(8),
.rdimm = U(0),
.mirrored_dimm = U(0),
.n_row_addr = U(16),
.n_col_addr = U(10),
.bank_group_bits = U(1),
.edc_config = U(2),
.burst_lengths_bitmask = U(0x0c),
.tckmin_x_ps = 750,
.tckmax_ps = 1900,
.caslat_x = U(0x0001FFE00),
.taa_ps = 13500,
.trcd_ps = 13500,
.trp_ps = 13500,
.tras_ps = 33000,
.trc_ps = 46500,
.twr_ps = 15000,
.trfc1_ps = 350000,
.trfc2_ps = 260000,
.trfc4_ps = 160000,
.tfaw_ps = 30000,
.trrds_ps = 5300,
.trrdl_ps = 6400,
.tccdl_ps = 5355,
.refresh_rate_ps = U(7800000),
.dq_mapping[0] = U(0x0),
.dq_mapping[1] = U(0x0),
.dq_mapping[2] = U(0x0),
.dq_mapping[3] = U(0x0),
.dq_mapping[4] = U(0x0),
.dq_mapping_ors = U(0),
.rc = U(0x1f),
};
int ddr_get_ddr_params(struct dimm_params *pdimm, struct ddr_conf *conf)
{
static const char dimm_model[] = "Fixed DDR on board";
conf->dimm_in_use[0] = 1;
memcpy(pdimm, &ddr_raw_timing, sizeof(struct dimm_params));
memcpy(pdimm->mpart, dimm_model, sizeof(dimm_model) - 1);
return 1;
}
#endif /* ifdef CONFIG_STATIC_DDR */
long long init_ddr(void)
{
int spd_addr[] = {NXP_SPD_EEPROM0};
struct ddr_info info;
struct sysinfo sys;
long long dram_size;
zeromem(&sys, sizeof(sys));
if (get_clocks(&sys)) {
ERROR("System clocks are not set\n");
assert(0);
}
debug("platform clock %lu\n", sys.freq_platform);
debug("DDR PLL1 %lu\n", sys.freq_ddr_pll0);
debug("DDR PLL2 %lu\n", sys.freq_ddr_pll1);
zeromem(&info, sizeof(struct ddr_info));
info.num_ctlrs = 1;
info.dimm_on_ctlr = 1;
info.clk = get_ddr_freq(&sys, 0);
info.spd_addr = spd_addr;
info.ddr[0] = (void *)NXP_DDR_ADDR;
dram_size = dram_init(&info);
if (dram_size < 0) {
ERROR("DDR init failed.\n");
}
#ifdef ERRATA_SOC_A008850
erratum_a008850_post();
#endif
return dram_size;
}
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