85 lines
1.6 KiB
C
85 lines
1.6 KiB
C
/*
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* Copyright 2022 NXP
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <errno.h>
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#include <common/debug.h>
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#include <ddr.h>
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#include <utils.h>
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#include <errata.h>
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#include <platform_def.h>
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#ifdef CONFIG_STATIC_DDR
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#error No static value defined
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#endif
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static const struct rc_timing rce[] = {
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{U(1600), U(8), U(8)},
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{U(1867), U(8), U(8)},
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{U(2134), U(8), U(9)},
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{}
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};
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static const struct board_timing udimm[] = {
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{U(0x04), rce, U(0x01020307), U(0x08090b06)},
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};
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int ddr_board_options(struct ddr_info *priv)
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{
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int ret;
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struct memctl_opt *popts = &priv->opt;
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if (popts->rdimm != 0) {
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debug("RDIMM parameters not set.\n");
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return -EINVAL;
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}
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ret = cal_board_params(priv, udimm, ARRAY_SIZE(udimm));
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if (ret != 0) {
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return ret;
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}
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popts->addr_hash = 1;
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popts->cpo_sample = U(0x7b);
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popts->ddr_cdr1 = DDR_CDR1_DHC_EN |
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DDR_CDR1_ODT(DDR_CDR_ODT_60ohm);
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popts->ddr_cdr2 = DDR_CDR2_ODT(DDR_CDR_ODT_60ohm) |
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DDR_CDR2_VREF_TRAIN_EN |
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DDR_CDR2_VREF_RANGE_2;
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return 0;
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}
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long long init_ddr(void)
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{
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int spd_addr[] = { NXP_SPD_EEPROM0 };
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struct ddr_info info;
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struct sysinfo sys;
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long long dram_size;
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zeromem(&sys, sizeof(sys));
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get_clocks(&sys);
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debug("platform clock %lu\n", sys.freq_platform);
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debug("DDR PLL %lu\n", sys.freq_ddr_pll0);
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zeromem(&info, sizeof(struct ddr_info));
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info.num_ctlrs = NUM_OF_DDRC;
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info.dimm_on_ctlr = DDRC_NUM_DIMM;
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info.clk = get_ddr_freq(&sys, 0);
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info.spd_addr = spd_addr;
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info.ddr[0] = (void *)NXP_DDR_ADDR;
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dram_size = dram_init(&info);
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if (dram_size < 0) {
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ERROR("DDR init failed.\n");
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}
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erratum_a008850_post();
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return dram_size;
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}
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