diff options
Diffstat (limited to 'drivers/nxp/ddr/nxp-ddr/ddr.c')
| -rw-r--r-- | drivers/nxp/ddr/nxp-ddr/ddr.c | 931 |
1 files changed, 931 insertions, 0 deletions
diff --git a/drivers/nxp/ddr/nxp-ddr/ddr.c b/drivers/nxp/ddr/nxp-ddr/ddr.c new file mode 100644 index 0000000..17c2bbb --- /dev/null +++ b/drivers/nxp/ddr/nxp-ddr/ddr.c @@ -0,0 +1,931 @@ +/* + * Copyright 2021 NXP + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <errno.h> +#include <inttypes.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include <common/debug.h> +#include <ddr.h> +#ifndef CONFIG_DDR_NODIMM +#include <i2c.h> +#endif +#include <nxp_timer.h> + +struct dynamic_odt { + unsigned int odt_rd_cfg; + unsigned int odt_wr_cfg; + unsigned int odt_rtt_norm; + unsigned int odt_rtt_wr; +}; + +#ifndef CONFIG_STATIC_DDR +#if defined(PHY_GEN2_FW_IMAGE_BUFFER) && !defined(NXP_DDR_PHY_GEN2) +#error Missing NXP_DDR_PHY_GEN2 +#endif +#ifdef NXP_DDR_PHY_GEN2 +static const struct dynamic_odt single_D[4] = { + { /* cs0 */ + DDR_ODT_NEVER, + DDR_ODT_ALL, + DDR4_RTT_80_OHM, + DDR4_RTT_WR_OFF + }, + { /* cs1 */ + DDR_ODT_NEVER, + DDR_ODT_NEVER, + DDR4_RTT_OFF, + DDR4_RTT_WR_OFF + }, + {}, + {} +}; + +static const struct dynamic_odt single_S[4] = { + { /* cs0 */ + DDR_ODT_NEVER, + DDR_ODT_ALL, + DDR4_RTT_80_OHM, + DDR4_RTT_WR_OFF + }, + {}, + {}, + {}, +}; + +static const struct dynamic_odt dual_DD[4] = { + { /* cs0 */ + DDR_ODT_OTHER_DIMM, + DDR_ODT_ALL, + DDR4_RTT_60_OHM, + DDR4_RTT_WR_240_OHM + }, + { /* cs1 */ + DDR_ODT_OTHER_DIMM, + DDR_ODT_ALL, + DDR4_RTT_60_OHM, + DDR4_RTT_WR_240_OHM + }, + { /* cs2 */ + DDR_ODT_OTHER_DIMM, + DDR_ODT_ALL, + DDR4_RTT_60_OHM, + DDR4_RTT_WR_240_OHM + }, + { /* cs3 */ + DDR_ODT_OTHER_DIMM, + DDR_ODT_ALL, + DDR4_RTT_60_OHM, + DDR4_RTT_WR_240_OHM + } +}; + +static const struct dynamic_odt dual_SS[4] = { + { /* cs0 */ + DDR_ODT_NEVER, + DDR_ODT_ALL, + DDR4_RTT_80_OHM, + DDR4_RTT_WR_OFF + }, + {}, + { /* cs2 */ + DDR_ODT_NEVER, + DDR_ODT_ALL, + DDR4_RTT_80_OHM, + DDR4_RTT_WR_OFF + }, + {} +}; + +static const struct dynamic_odt dual_D0[4] = { + { /* cs0 */ + DDR_ODT_NEVER, + DDR_ODT_SAME_DIMM, + DDR4_RTT_80_OHM, + DDR4_RTT_WR_OFF + }, + { /* cs1 */ + DDR_ODT_NEVER, + DDR_ODT_NEVER, + DDR4_RTT_80_OHM, + DDR4_RTT_WR_OFF + }, + {}, + {} +}; + +static const struct dynamic_odt dual_S0[4] = { + { /* cs0 */ + DDR_ODT_NEVER, + DDR_ODT_CS, + DDR4_RTT_80_OHM, + DDR4_RTT_WR_OFF + }, + {}, + {}, + {} +}; +#else +static const struct dynamic_odt single_D[4] = { + { /* cs0 */ + DDR_ODT_NEVER, + DDR_ODT_ALL, + DDR4_RTT_40_OHM, + DDR4_RTT_WR_OFF + }, + { /* cs1 */ + DDR_ODT_NEVER, + DDR_ODT_NEVER, + DDR4_RTT_OFF, + DDR4_RTT_WR_OFF + }, + {}, + {} +}; + +static const struct dynamic_odt single_S[4] = { + { /* cs0 */ + DDR_ODT_NEVER, + DDR_ODT_ALL, + DDR4_RTT_40_OHM, + DDR4_RTT_WR_OFF + }, + {}, + {}, + {}, +}; + +static const struct dynamic_odt dual_DD[4] = { + { /* cs0 */ + DDR_ODT_NEVER, + DDR_ODT_SAME_DIMM, + DDR4_RTT_120_OHM, + DDR4_RTT_WR_OFF + }, + { /* cs1 */ + DDR_ODT_OTHER_DIMM, + DDR_ODT_OTHER_DIMM, + DDR4_RTT_34_OHM, + DDR4_RTT_WR_OFF + }, + { /* cs2 */ + DDR_ODT_NEVER, + DDR_ODT_SAME_DIMM, + DDR4_RTT_120_OHM, + DDR4_RTT_WR_OFF + }, + { /* cs3 */ + DDR_ODT_OTHER_DIMM, + DDR_ODT_OTHER_DIMM, + DDR4_RTT_34_OHM, + DDR4_RTT_WR_OFF + } +}; + +static const struct dynamic_odt dual_SS[4] = { + { /* cs0 */ + DDR_ODT_OTHER_DIMM, + DDR_ODT_ALL, + DDR4_RTT_34_OHM, + DDR4_RTT_WR_120_OHM + }, + {}, + { /* cs2 */ + DDR_ODT_OTHER_DIMM, + DDR_ODT_ALL, + DDR4_RTT_34_OHM, + DDR4_RTT_WR_120_OHM + }, + {} +}; + +static const struct dynamic_odt dual_D0[4] = { + { /* cs0 */ + DDR_ODT_NEVER, + DDR_ODT_SAME_DIMM, + DDR4_RTT_40_OHM, + DDR4_RTT_WR_OFF + }, + { /* cs1 */ + DDR_ODT_NEVER, + DDR_ODT_NEVER, + DDR4_RTT_OFF, + DDR4_RTT_WR_OFF + }, + {}, + {} +}; + +static const struct dynamic_odt dual_S0[4] = { + { /* cs0 */ + DDR_ODT_NEVER, + DDR_ODT_CS, + DDR4_RTT_40_OHM, + DDR4_RTT_WR_OFF + }, + {}, + {}, + {} +}; +#endif /* NXP_DDR_PHY_GEN2 */ + +/* + * Automatically select bank interleaving mode based on DIMMs + * in this order: cs0_cs1_cs2_cs3, cs0_cs1, null. + * This function only deal with one or two slots per controller. + */ +static inline unsigned int auto_bank_intlv(const int cs_in_use, + const struct dimm_params *pdimm) +{ + switch (cs_in_use) { + case 0xf: + return DDR_BA_INTLV_CS0123; + case 0x3: + return DDR_BA_INTLV_CS01; + case 0x1: + return DDR_BA_NONE; + case 0x5: + return DDR_BA_NONE; + default: + break; + } + + return 0U; +} + +static int cal_odt(const unsigned int clk, + struct memctl_opt *popts, + struct ddr_conf *conf, + struct dimm_params *pdimm, + const int dimm_slot_per_ctrl) + +{ + unsigned int i; + const struct dynamic_odt *pdodt = NULL; + + static const struct dynamic_odt *table[2][5] = { + {single_S, single_D, NULL, NULL}, + {dual_SS, dual_DD, NULL, NULL}, + }; + + if (dimm_slot_per_ctrl != 1 && dimm_slot_per_ctrl != 2) { + ERROR("Unsupported number of DIMMs\n"); + return -EINVAL; + } + + pdodt = table[dimm_slot_per_ctrl - 1][pdimm->n_ranks - 1]; + if (pdodt == dual_SS) { + pdodt = (conf->cs_in_use == 0x5) ? dual_SS : + ((conf->cs_in_use == 0x1) ? dual_S0 : NULL); + } else if (pdodt == dual_DD) { + pdodt = (conf->cs_in_use == 0xf) ? dual_DD : + ((conf->cs_in_use == 0x3) ? dual_D0 : NULL); + } + if (pdodt == dual_DD && pdimm->package_3ds) { + ERROR("Too many 3DS DIMMs.\n"); + return -EINVAL; + } + + if (pdodt == NULL) { + ERROR("Error determining ODT.\n"); + return -EINVAL; + } + + /* Pick chip-select local options. */ + for (i = 0U; i < DDRC_NUM_CS; i++) { + debug("cs %d\n", i); + popts->cs_odt[i].odt_rd_cfg = pdodt[i].odt_rd_cfg; + debug(" odt_rd_cfg 0x%x\n", + popts->cs_odt[i].odt_rd_cfg); + popts->cs_odt[i].odt_wr_cfg = pdodt[i].odt_wr_cfg; + debug(" odt_wr_cfg 0x%x\n", + popts->cs_odt[i].odt_wr_cfg); + popts->cs_odt[i].odt_rtt_norm = pdodt[i].odt_rtt_norm; + debug(" odt_rtt_norm 0x%x\n", + popts->cs_odt[i].odt_rtt_norm); + popts->cs_odt[i].odt_rtt_wr = pdodt[i].odt_rtt_wr; + debug(" odt_rtt_wr 0x%x\n", + popts->cs_odt[i].odt_rtt_wr); + popts->cs_odt[i].auto_precharge = 0; + debug(" auto_precharge %d\n", + popts->cs_odt[i].auto_precharge); + } + + return 0; +} + +static int cal_opts(const unsigned int clk, + struct memctl_opt *popts, + struct ddr_conf *conf, + struct dimm_params *pdimm, + const int dimm_slot_per_ctrl, + const unsigned int ip_rev) +{ + popts->rdimm = pdimm->rdimm; + popts->mirrored_dimm = pdimm->mirrored_dimm; +#ifdef CONFIG_DDR_ECC_EN + popts->ecc_mode = pdimm->edc_config == 0x02 ? 1 : 0; +#endif + popts->ctlr_init_ecc = popts->ecc_mode; + debug("ctlr_init_ecc %d\n", popts->ctlr_init_ecc); + popts->self_refresh_in_sleep = 1; + popts->dynamic_power = 0; + + /* + * check sdram width, allow platform override + * 0 = 64-bit, 1 = 32-bit, 2 = 16-bit + */ + if (pdimm->primary_sdram_width == 64) { + popts->data_bus_dimm = DDR_DBUS_64; + popts->otf_burst_chop_en = 1; + } else if (pdimm->primary_sdram_width == 32) { + popts->data_bus_dimm = DDR_DBUS_32; + popts->otf_burst_chop_en = 0; + } else if (pdimm->primary_sdram_width == 16) { + popts->data_bus_dimm = DDR_DBUS_16; + popts->otf_burst_chop_en = 0; + } else { + ERROR("primary sdram width invalid!\n"); + return -EINVAL; + } + popts->data_bus_used = popts->data_bus_dimm; + popts->x4_en = (pdimm->device_width == 4) ? 1 : 0; + debug("x4_en %d\n", popts->x4_en); + + /* for RDIMM and DDR4 UDIMM/discrete memory, address parity enable */ + if (popts->rdimm != 0) { + popts->ap_en = 1; /* 0 = disable, 1 = enable */ + } else { + popts->ap_en = 0; /* disabled for DDR4 UDIMM/discrete default */ + } + + if (ip_rev == 0x50500) { + popts->ap_en = 0; + } + + debug("ap_en %d\n", popts->ap_en); + + /* BSTTOPRE precharge interval uses 1/4 of refint value. */ + popts->bstopre = picos_to_mclk(clk, pdimm->refresh_rate_ps) >> 2; + popts->tfaw_ps = pdimm->tfaw_ps; + + return 0; +} + +static void cal_intlv(const int num_ctlrs, + struct memctl_opt *popts, + struct ddr_conf *conf, + struct dimm_params *pdimm) +{ +#ifdef NXP_DDR_INTLV_256B + if (num_ctlrs == 2) { + popts->ctlr_intlv = 1; + popts->ctlr_intlv_mode = DDR_256B_INTLV; + } +#endif + debug("ctlr_intlv %d\n", popts->ctlr_intlv); + debug("ctlr_intlv_mode %d\n", popts->ctlr_intlv_mode); + + popts->ba_intlv = auto_bank_intlv(conf->cs_in_use, pdimm); + debug("ba_intlv 0x%x\n", popts->ba_intlv); +} + +static int update_burst_length(struct memctl_opt *popts) +{ + /* Choose burst length. */ + if ((popts->data_bus_used == DDR_DBUS_32) || + (popts->data_bus_used == DDR_DBUS_16)) { + /* 32-bit or 16-bit bus */ + popts->otf_burst_chop_en = 0; + popts->burst_length = DDR_BL8; + } else if (popts->otf_burst_chop_en != 0) { /* on-the-fly burst chop */ + popts->burst_length = DDR_OTF; /* on-the-fly BC4 and BL8 */ + } else { + popts->burst_length = DDR_BL8; + } + debug("data_bus_used %d\n", popts->data_bus_used); + debug("otf_burst_chop_en %d\n", popts->otf_burst_chop_en); + debug("burst_length 0x%x\n", popts->burst_length); + /* + * If a reduced data width is requested, but the SPD + * specifies a physically wider device, adjust the + * computed dimm capacities accordingly before + * assigning addresses. + * 0 = 64-bit, 1 = 32-bit, 2 = 16-bit + */ + if (popts->data_bus_dimm > popts->data_bus_used) { + ERROR("Data bus configuration error\n"); + return -EINVAL; + } + popts->dbw_cap_shift = popts->data_bus_used - popts->data_bus_dimm; + debug("dbw_cap_shift %d\n", popts->dbw_cap_shift); + + return 0; +} + +int cal_board_params(struct ddr_info *priv, + const struct board_timing *dimm, + int len) +{ + const unsigned long speed = priv->clk / 1000000; + const struct dimm_params *pdimm = &priv->dimm; + struct memctl_opt *popts = &priv->opt; + struct rc_timing const *prt = NULL; + struct rc_timing const *chosen = NULL; + int i; + + for (i = 0; i < len; i++) { + if (pdimm->rc == dimm[i].rc) { + prt = dimm[i].p; + break; + } + } + if (prt == NULL) { + ERROR("Board parameters no match.\n"); + return -EINVAL; + } + while (prt->speed_bin != 0) { + if (speed <= prt->speed_bin) { + chosen = prt; + break; + } + prt++; + } + if (chosen == NULL) { + ERROR("timing no match for speed %lu\n", speed); + return -EINVAL; + } + popts->clk_adj = prt->clk_adj; + popts->wrlvl_start = prt->wrlvl; + popts->wrlvl_ctl_2 = (prt->wrlvl * 0x01010101 + dimm[i].add1) & + 0xFFFFFFFF; + popts->wrlvl_ctl_3 = (prt->wrlvl * 0x01010101 + dimm[i].add2) & + 0xFFFFFFFF; + + return 0; +} + +static int synthesize_ctlr(struct ddr_info *priv) +{ + int ret; + + ret = cal_odt(priv->clk, + &priv->opt, + &priv->conf, + &priv->dimm, + priv->dimm_on_ctlr); + if (ret != 0) { + return ret; + } + + ret = cal_opts(priv->clk, + &priv->opt, + &priv->conf, + &priv->dimm, + priv->dimm_on_ctlr, + priv->ip_rev); + + if (ret != 0) { + return ret; + } + + cal_intlv(priv->num_ctlrs, &priv->opt, &priv->conf, &priv->dimm); + ret = ddr_board_options(priv); + if (ret != 0) { + ERROR("Failed matching board timing.\n"); + } + + ret = update_burst_length(&priv->opt); + + return ret; +} + +/* Return the bit mask of valid DIMMs found */ +static int parse_spd(struct ddr_info *priv) +{ + struct ddr_conf *conf = &priv->conf; + struct dimm_params *dimm = &priv->dimm; + int j, valid_mask = 0; + +#ifdef CONFIG_DDR_NODIMM + valid_mask = ddr_get_ddr_params(dimm, conf); + if (valid_mask < 0) { + ERROR("DDR params error\n"); + return valid_mask; + } +#else + const int *spd_addr = priv->spd_addr; + const int num_ctlrs = priv->num_ctlrs; + const int num_dimm = priv->dimm_on_ctlr; + struct ddr4_spd spd[2]; + unsigned int spd_checksum[2]; + int addr_idx = 0; + int spd_idx = 0; + int ret, addr, i; + + /* Scan all DIMMs */ + for (i = 0; i < num_ctlrs; i++) { + debug("Controller %d\n", i); + for (j = 0; j < num_dimm; j++, addr_idx++) { + debug("DIMM %d\n", j); + addr = spd_addr[addr_idx]; + if (addr == 0) { + if (j == 0) { + ERROR("First SPD addr wrong.\n"); + return -EINVAL; + } + continue; + } + debug("addr 0x%x\n", addr); + ret = read_spd(addr, &spd[spd_idx], + sizeof(struct ddr4_spd)); + if (ret != 0) { /* invalid */ + debug("Invalid SPD at address 0x%x\n", addr); + continue; + } + + spd_checksum[spd_idx] = + (spd[spd_idx].crc[1] << 24) | + (spd[spd_idx].crc[0] << 16) | + (spd[spd_idx].mod_section.uc[127] << 8) | + (spd[spd_idx].mod_section.uc[126] << 0); + debug("checksum 0x%x\n", spd_checksum[spd_idx]); + if (spd_checksum[spd_idx] == 0) { + debug("Bad checksum, ignored.\n"); + continue; + } + if (spd_idx == 0) { + /* first valid SPD */ + ret = cal_dimm_params(&spd[0], dimm); + if (ret != 0) { + ERROR("SPD calculation error\n"); + return -EINVAL; + } + } + + if (spd_idx != 0 && spd_checksum[0] != + spd_checksum[spd_idx]) { + ERROR("Not identical DIMMs.\n"); + return -EINVAL; + } + conf->dimm_in_use[j] = 1; + valid_mask |= 1 << addr_idx; + spd_idx = 1; + } + debug("done with controller %d\n", i); + } + switch (num_ctlrs) { + case 1: + if ((valid_mask & 0x1) == 0) { + ERROR("First slot cannot be empty.\n"); + return -EINVAL; + } + break; + case 2: + switch (num_dimm) { + case 1: + if (valid_mask == 0) { + ERROR("Both slot empty\n"); + return -EINVAL; + } + break; + case 2: + if (valid_mask != 0x5 && + valid_mask != 0xf && + (valid_mask & 0x7) != 0x4 && + (valid_mask & 0xd) != 0x1) { + ERROR("Invalid DIMM combination.\n"); + return -EINVAL; + } + break; + default: + ERROR("Invalid number of DIMMs.\n"); + return -EINVAL; + } + break; + default: + ERROR("Invalid number of controllers.\n"); + return -EINVAL; + } + /* now we have valid and identical DIMMs on controllers */ +#endif /* CONFIG_DDR_NODIMM */ + + debug("cal cs\n"); + conf->cs_in_use = 0; + for (j = 0; j < DDRC_NUM_DIMM; j++) { + if (conf->dimm_in_use[j] == 0) { + continue; + } + switch (dimm->n_ranks) { + case 4: + ERROR("Quad-rank DIMM not supported\n"); + return -EINVAL; + case 2: + conf->cs_on_dimm[j] = 0x3 << (j * CONFIG_CS_PER_SLOT); + conf->cs_in_use |= conf->cs_on_dimm[j]; + break; + case 1: + conf->cs_on_dimm[j] = 0x1 << (j * CONFIG_CS_PER_SLOT); + conf->cs_in_use |= conf->cs_on_dimm[j]; + break; + default: + ERROR("SPD error with n_ranks\n"); + return -EINVAL; + } + debug("cs_in_use = %x\n", conf->cs_in_use); + debug("cs_on_dimm[%d] = %x\n", j, conf->cs_on_dimm[j]); + } +#ifndef CONFIG_DDR_NODIMM + if (priv->dimm.rdimm != 0) { + NOTICE("RDIMM %s\n", priv->dimm.mpart); + } else { + NOTICE("UDIMM %s\n", priv->dimm.mpart); + } +#else + NOTICE("%s\n", priv->dimm.mpart); +#endif + + return valid_mask; +} + +static unsigned long long assign_intlv_addr( + const struct dimm_params *pdimm, + const struct memctl_opt *opt, + struct ddr_conf *conf, + const unsigned long long current_mem_base) +{ + int i; + int ctlr_density_mul = 0; + const unsigned long long rank_density = pdimm->rank_density >> + opt->dbw_cap_shift; + unsigned long long total_ctlr_mem; + + debug("rank density 0x%llx\n", rank_density); + switch (opt->ba_intlv & DDR_BA_INTLV_CS0123) { + case DDR_BA_INTLV_CS0123: + ctlr_density_mul = 4; + break; + case DDR_BA_INTLV_CS01: + ctlr_density_mul = 2; + break; + default: + ctlr_density_mul = 1; + break; + } + debug("ctlr density mul %d\n", ctlr_density_mul); + switch (opt->ctlr_intlv_mode) { + case DDR_256B_INTLV: + total_ctlr_mem = 2 * ctlr_density_mul * rank_density; + break; + default: + ERROR("Unknown interleaving mode"); + return 0; + } + conf->base_addr = current_mem_base; + conf->total_mem = total_ctlr_mem; + + /* overwrite cs_in_use bitmask with controller interleaving */ + conf->cs_in_use = (1 << ctlr_density_mul) - 1; + debug("Overwrite cs_in_use as %x\n", conf->cs_in_use); + + /* Fill addr with each cs in use */ + for (i = 0; i < ctlr_density_mul; i++) { + conf->cs_base_addr[i] = current_mem_base; + conf->cs_size[i] = total_ctlr_mem; + debug("CS %d\n", i); + debug(" base_addr 0x%llx\n", conf->cs_base_addr[i]); + debug(" size 0x%llx\n", conf->cs_size[i]); + } + + return total_ctlr_mem; +} + +static unsigned long long assign_non_intlv_addr( + const struct dimm_params *pdimm, + const struct memctl_opt *opt, + struct ddr_conf *conf, + unsigned long long current_mem_base) +{ + int i; + const unsigned long long rank_density = pdimm->rank_density >> + opt->dbw_cap_shift; + unsigned long long total_ctlr_mem = 0ULL; + + debug("rank density 0x%llx\n", rank_density); + conf->base_addr = current_mem_base; + + /* assign each cs */ + switch (opt->ba_intlv & DDR_BA_INTLV_CS0123) { + case DDR_BA_INTLV_CS0123: + for (i = 0; i < DDRC_NUM_CS; i++) { + conf->cs_base_addr[i] = current_mem_base; + conf->cs_size[i] = rank_density << 2; + total_ctlr_mem += rank_density; + } + break; + case DDR_BA_INTLV_CS01: + for (i = 0; ((conf->cs_in_use & (1 << i)) != 0) && i < 2; i++) { + conf->cs_base_addr[i] = current_mem_base; + conf->cs_size[i] = rank_density << 1; + total_ctlr_mem += rank_density; + } + current_mem_base += total_ctlr_mem; + for (; ((conf->cs_in_use & (1 << i)) != 0) && i < DDRC_NUM_CS; + i++) { + conf->cs_base_addr[i] = current_mem_base; + conf->cs_size[i] = rank_density; + total_ctlr_mem += rank_density; + current_mem_base += rank_density; + } + break; + case DDR_BA_NONE: + for (i = 0; ((conf->cs_in_use & (1 << i)) != 0) && + (i < DDRC_NUM_CS); i++) { + conf->cs_base_addr[i] = current_mem_base; + conf->cs_size[i] = rank_density; + current_mem_base += rank_density; + total_ctlr_mem += rank_density; + } + break; + default: + ERROR("Unsupported bank interleaving\n"); + return 0; + } + for (i = 0; ((conf->cs_in_use & (1 << i)) != 0) && + (i < DDRC_NUM_CS); i++) { + debug("CS %d\n", i); + debug(" base_addr 0x%llx\n", conf->cs_base_addr[i]); + debug(" size 0x%llx\n", conf->cs_size[i]); + } + + return total_ctlr_mem; +} + +unsigned long long assign_addresses(struct ddr_info *priv) + __attribute__ ((weak)); + +unsigned long long assign_addresses(struct ddr_info *priv) +{ + struct memctl_opt *opt = &priv->opt; + const struct dimm_params *dimm = &priv->dimm; + struct ddr_conf *conf = &priv->conf; + unsigned long long current_mem_base = priv->mem_base; + unsigned long long total_mem; + + total_mem = 0ULL; + debug("ctlr_intlv %d\n", opt->ctlr_intlv); + if (opt->ctlr_intlv != 0) { + total_mem = assign_intlv_addr(dimm, opt, conf, + current_mem_base); + } else { + /* + * Simple linear assignment if memory controllers are not + * interleaved. This is only valid for SoCs with single DDRC. + */ + total_mem = assign_non_intlv_addr(dimm, opt, conf, + current_mem_base); + } + conf->total_mem = total_mem; + debug("base 0x%llx\n", current_mem_base); + debug("Total mem by assignment is 0x%llx\n", total_mem); + + return total_mem; +} + +static int cal_ddrc_regs(struct ddr_info *priv) +{ + int ret; + + ret = compute_ddrc(priv->clk, + &priv->opt, + &priv->conf, + &priv->ddr_reg, + &priv->dimm, + priv->ip_rev); + if (ret != 0) { + ERROR("Calculating DDR registers failed\n"); + } + + return ret; +} + +#endif /* CONFIG_STATIC_DDR */ + +static int write_ddrc_regs(struct ddr_info *priv) +{ + int i; + int ret; + + for (i = 0; i < priv->num_ctlrs; i++) { + ret = ddrc_set_regs(priv->clk, &priv->ddr_reg, priv->ddr[i], 0); + if (ret != 0) { + ERROR("Writing DDR register(s) failed\n"); + return ret; + } + } + + return 0; +} + +long long dram_init(struct ddr_info *priv +#if defined(NXP_HAS_CCN504) || defined(NXP_HAS_CCN508) + , uintptr_t nxp_ccn_hn_f0_addr +#endif + ) +{ + uint64_t time __unused; + long long dram_size; + int ret; + const uint64_t time_base = get_timer_val(0); + unsigned int ip_rev = get_ddrc_version(priv->ddr[0]); + + int valid_spd_mask __unused; + int scratch = 0x0; + + priv->ip_rev = ip_rev; + +#ifndef CONFIG_STATIC_DDR + INFO("time base %" PRIu64 " ms\n", time_base); + debug("Parse DIMM SPD(s)\n"); + valid_spd_mask = parse_spd(priv); + + if (valid_spd_mask < 0) { + ERROR("Parsing DIMM Error\n"); + return valid_spd_mask; + } + +#if defined(NXP_HAS_CCN504) || defined(NXP_HAS_CCN508) + if (priv->num_ctlrs == 2 || priv->num_ctlrs == 1) { + ret = disable_unused_ddrc(priv, valid_spd_mask, + nxp_ccn_hn_f0_addr); + if (ret != 0) { + return ret; + } + } +#endif + + time = get_timer_val(time_base); + INFO("Time after parsing SPD %" PRIu64 " ms\n", time); + debug("Synthesize configurations\n"); + ret = synthesize_ctlr(priv); + if (ret != 0) { + ERROR("Synthesize config error\n"); + return ret; + } + + debug("Assign binding addresses\n"); + dram_size = assign_addresses(priv); + if (dram_size == 0) { + ERROR("Assigning address error\n"); + return -EINVAL; + } + + debug("Calculate controller registers\n"); + ret = cal_ddrc_regs(priv); + if (ret != 0) { + ERROR("Calculate register error\n"); + return ret; + } + + ret = compute_ddr_phy(priv); + if (ret != 0) + ERROR("Calculating DDR PHY registers failed.\n"); + +#else + dram_size = board_static_ddr(priv); + if (dram_size == 0) { + ERROR("Error getting static DDR settings.\n"); + return -EINVAL; + } +#endif + + if (priv->warm_boot_flag == DDR_WARM_BOOT) { + scratch = (priv->ddr_reg).sdram_cfg[1]; + scratch = scratch & ~(SDRAM_CFG2_D_INIT); + priv->ddr_reg.sdram_cfg[1] = scratch; + } + + time = get_timer_val(time_base); + INFO("Time before programming controller %" PRIu64 " ms\n", time); + debug("Program controller registers\n"); + ret = write_ddrc_regs(priv); + if (ret != 0) { + ERROR("Programming DDRC error\n"); + return ret; + } + + puts(""); + NOTICE("%lld GB ", dram_size >> 30); + print_ddr_info(priv->ddr[0]); + + time = get_timer_val(time_base); + INFO("Time used by DDR driver %" PRIu64 " ms\n", time); + + return dram_size; +} |