2 * Copyright 2008, 2010-2014 Freescale Semiconductor, Inc.
4 * SPDX-License-Identifier: GPL-2.0+
9 #include <fsl_ddr_sdram.h>
14 * Use our own stack based buffer before relocation to allow accessing longer
15 * hwconfig strings that might be in the environment before we've relocated.
16 * This is pretty fragile on both the use of stack and if the buffer is big
17 * enough. However we will get a warning from getenv_f for the later.
20 /* Board-specific functions defined in each board's ddr.c */
21 extern void fsl_ddr_board_options(memctl_options_t *popts,
23 unsigned int ctrl_num);
26 unsigned int odt_rd_cfg;
27 unsigned int odt_wr_cfg;
28 unsigned int odt_rtt_norm;
29 unsigned int odt_rtt_wr;
32 #if defined(CONFIG_SYS_FSL_DDR3) || defined(CONFIG_SYS_FSL_DDR4)
33 static const struct dynamic_odt single_Q[4] = {
36 FSL_DDR_ODT_CS_AND_OTHER_DIMM,
42 FSL_DDR_ODT_NEVER, /* tied high */
48 FSL_DDR_ODT_CS_AND_OTHER_DIMM,
54 FSL_DDR_ODT_NEVER, /* tied high */
60 static const struct dynamic_odt single_D[4] = {
77 static const struct dynamic_odt single_S[4] = {
89 static const struct dynamic_odt dual_DD[4] = {
92 FSL_DDR_ODT_SAME_DIMM,
97 FSL_DDR_ODT_OTHER_DIMM,
98 FSL_DDR_ODT_OTHER_DIMM,
104 FSL_DDR_ODT_SAME_DIMM,
109 FSL_DDR_ODT_OTHER_DIMM,
110 FSL_DDR_ODT_OTHER_DIMM,
116 static const struct dynamic_odt dual_DS[4] = {
119 FSL_DDR_ODT_SAME_DIMM,
124 FSL_DDR_ODT_OTHER_DIMM,
125 FSL_DDR_ODT_OTHER_DIMM,
130 FSL_DDR_ODT_OTHER_DIMM,
137 static const struct dynamic_odt dual_SD[4] = {
139 FSL_DDR_ODT_OTHER_DIMM,
147 FSL_DDR_ODT_SAME_DIMM,
152 FSL_DDR_ODT_OTHER_DIMM,
153 FSL_DDR_ODT_OTHER_DIMM,
159 static const struct dynamic_odt dual_SS[4] = {
161 FSL_DDR_ODT_OTHER_DIMM,
168 FSL_DDR_ODT_OTHER_DIMM,
176 static const struct dynamic_odt dual_D0[4] = {
179 FSL_DDR_ODT_SAME_DIMM,
193 static const struct dynamic_odt dual_0D[4] = {
198 FSL_DDR_ODT_SAME_DIMM,
210 static const struct dynamic_odt dual_S0[4] = {
223 static const struct dynamic_odt dual_0S[4] = {
236 static const struct dynamic_odt odt_unknown[4] = {
262 #else /* CONFIG_SYS_FSL_DDR3 || CONFIG_SYS_FSL_DDR4 */
263 static const struct dynamic_odt single_Q[4] = {
270 static const struct dynamic_odt single_D[4] = {
287 static const struct dynamic_odt single_S[4] = {
299 static const struct dynamic_odt dual_DD[4] = {
301 FSL_DDR_ODT_OTHER_DIMM,
302 FSL_DDR_ODT_OTHER_DIMM,
313 FSL_DDR_ODT_OTHER_DIMM,
314 FSL_DDR_ODT_OTHER_DIMM,
326 static const struct dynamic_odt dual_DS[4] = {
328 FSL_DDR_ODT_OTHER_DIMM,
329 FSL_DDR_ODT_OTHER_DIMM,
340 FSL_DDR_ODT_OTHER_DIMM,
341 FSL_DDR_ODT_OTHER_DIMM,
348 static const struct dynamic_odt dual_SD[4] = {
350 FSL_DDR_ODT_OTHER_DIMM,
351 FSL_DDR_ODT_OTHER_DIMM,
357 FSL_DDR_ODT_OTHER_DIMM,
358 FSL_DDR_ODT_OTHER_DIMM,
370 static const struct dynamic_odt dual_SS[4] = {
372 FSL_DDR_ODT_OTHER_DIMM,
373 FSL_DDR_ODT_OTHER_DIMM,
379 FSL_DDR_ODT_OTHER_DIMM,
380 FSL_DDR_ODT_OTHER_DIMM,
387 static const struct dynamic_odt dual_D0[4] = {
404 static const struct dynamic_odt dual_0D[4] = {
421 static const struct dynamic_odt dual_S0[4] = {
434 static const struct dynamic_odt dual_0S[4] = {
447 static const struct dynamic_odt odt_unknown[4] = {
476 * Automatically seleect bank interleaving mode based on DIMMs
477 * in this order: cs0_cs1_cs2_cs3, cs0_cs1, null.
478 * This function only deal with one or two slots per controller.
480 static inline unsigned int auto_bank_intlv(dimm_params_t *pdimm)
482 #if (CONFIG_DIMM_SLOTS_PER_CTLR == 1)
483 if (pdimm[0].n_ranks == 4)
484 return FSL_DDR_CS0_CS1_CS2_CS3;
485 else if (pdimm[0].n_ranks == 2)
486 return FSL_DDR_CS0_CS1;
487 #elif (CONFIG_DIMM_SLOTS_PER_CTLR == 2)
488 #ifdef CONFIG_FSL_DDR_FIRST_SLOT_QUAD_CAPABLE
489 if (pdimm[0].n_ranks == 4)
490 return FSL_DDR_CS0_CS1_CS2_CS3;
492 if (pdimm[0].n_ranks == 2) {
493 if (pdimm[1].n_ranks == 2)
494 return FSL_DDR_CS0_CS1_CS2_CS3;
496 return FSL_DDR_CS0_CS1;
502 unsigned int populate_memctl_options(int all_dimms_registered,
503 memctl_options_t *popts,
504 dimm_params_t *pdimm,
505 unsigned int ctrl_num)
508 char buffer[HWCONFIG_BUFFER_SIZE];
510 #if defined(CONFIG_SYS_FSL_DDR3) || \
511 defined(CONFIG_SYS_FSL_DDR2) || \
512 defined(CONFIG_SYS_FSL_DDR4)
513 const struct dynamic_odt *pdodt = odt_unknown;
518 * Extract hwconfig from environment since we have not properly setup
519 * the environment but need it for ddr config params
521 if (getenv_f("hwconfig", buffer, sizeof(buffer)) > 0)
524 #if defined(CONFIG_SYS_FSL_DDR3) || \
525 defined(CONFIG_SYS_FSL_DDR2) || \
526 defined(CONFIG_SYS_FSL_DDR4)
527 /* Chip select options. */
528 if (CONFIG_DIMM_SLOTS_PER_CTLR == 1) {
529 switch (pdimm[0].n_ranks) {
540 } else if (CONFIG_DIMM_SLOTS_PER_CTLR == 2) {
541 switch (pdimm[0].n_ranks) {
542 #ifdef CONFIG_FSL_DDR_FIRST_SLOT_QUAD_CAPABLE
545 if (pdimm[1].n_ranks)
546 printf("Error: Quad- and Dual-rank DIMMs "
547 "cannot be used together\n");
551 switch (pdimm[1].n_ranks) {
564 switch (pdimm[1].n_ranks) {
577 switch (pdimm[1].n_ranks) {
590 /* Pick chip-select local options. */
591 for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) {
592 #if defined(CONFIG_SYS_FSL_DDR3) || \
593 defined(CONFIG_SYS_FSL_DDR2) || \
594 defined(CONFIG_SYS_FSL_DDR4)
595 popts->cs_local_opts[i].odt_rd_cfg = pdodt[i].odt_rd_cfg;
596 popts->cs_local_opts[i].odt_wr_cfg = pdodt[i].odt_wr_cfg;
597 popts->cs_local_opts[i].odt_rtt_norm = pdodt[i].odt_rtt_norm;
598 popts->cs_local_opts[i].odt_rtt_wr = pdodt[i].odt_rtt_wr;
600 popts->cs_local_opts[i].odt_rd_cfg = FSL_DDR_ODT_NEVER;
601 popts->cs_local_opts[i].odt_wr_cfg = FSL_DDR_ODT_CS;
603 popts->cs_local_opts[i].auto_precharge = 0;
606 /* Pick interleaving mode. */
609 * 0 = no interleaving
610 * 1 = interleaving between 2 controllers
612 popts->memctl_interleaving = 0;
618 * 3 = superbank (only if CS interleaving is enabled)
620 popts->memctl_interleaving_mode = 0;
623 * 0: cacheline: bit 30 of the 36-bit physical addr selects the memctl
624 * 1: page: bit to the left of the column bits selects the memctl
625 * 2: bank: bit to the left of the bank bits selects the memctl
626 * 3: superbank: bit to the left of the chip select selects the memctl
628 * NOTE: ba_intlv (rank interleaving) is independent of memory
629 * controller interleaving; it is only within a memory controller.
630 * Must use superbank interleaving if rank interleaving is used and
631 * memory controller interleaving is enabled.
638 * 0x60 = CS0,CS1 + CS2,CS3
639 * 0x04 = CS0,CS1,CS2,CS3
641 popts->ba_intlv_ctl = 0;
643 /* Memory Organization Parameters */
644 popts->registered_dimm_en = all_dimms_registered;
646 /* Operational Mode Paramters */
649 popts->ecc_mode = 0; /* 0 = disabled, 1 = enabled */
650 #ifdef CONFIG_DDR_ECC
651 if (hwconfig_sub_f("fsl_ddr", "ecc", buf)) {
652 if (hwconfig_subarg_cmp_f("fsl_ddr", "ecc", "on", buf))
657 popts->ecc_init_using_memctl = 1; /* 0 = use DMA, 1 = use memctl */
664 #if defined(CONFIG_SYS_FSL_DDR1)
665 popts->dqs_config = 0;
666 #elif defined(CONFIG_SYS_FSL_DDR2) || defined(CONFIG_SYS_FSL_DDR3)
667 popts->dqs_config = 1;
670 /* Choose self-refresh during sleep. */
671 popts->self_refresh_in_sleep = 1;
673 /* Choose dynamic power management mode. */
674 popts->dynamic_power = 0;
677 * check first dimm for primary sdram width
678 * presuming all dimms are similar
679 * 0 = 64-bit, 1 = 32-bit, 2 = 16-bit
681 #if defined(CONFIG_SYS_FSL_DDR1) || defined(CONFIG_SYS_FSL_DDR2)
682 if (pdimm[0].n_ranks != 0) {
683 if ((pdimm[0].data_width >= 64) && \
684 (pdimm[0].data_width <= 72))
685 popts->data_bus_width = 0;
686 else if ((pdimm[0].data_width >= 32) || \
687 (pdimm[0].data_width <= 40))
688 popts->data_bus_width = 1;
690 panic("Error: data width %u is invalid!\n",
691 pdimm[0].data_width);
695 if (pdimm[0].n_ranks != 0) {
696 if (pdimm[0].primary_sdram_width == 64)
697 popts->data_bus_width = 0;
698 else if (pdimm[0].primary_sdram_width == 32)
699 popts->data_bus_width = 1;
700 else if (pdimm[0].primary_sdram_width == 16)
701 popts->data_bus_width = 2;
703 panic("Error: primary sdram width %u is invalid!\n",
704 pdimm[0].primary_sdram_width);
709 popts->x4_en = (pdimm[0].device_width == 4) ? 1 : 0;
711 /* Choose burst length. */
712 #if defined(CONFIG_SYS_FSL_DDR3) || defined(CONFIG_SYS_FSL_DDR4)
713 #if defined(CONFIG_E500MC)
714 popts->otf_burst_chop_en = 0; /* on-the-fly burst chop disable */
715 popts->burst_length = DDR_BL8; /* Fixed 8-beat burst len */
717 if ((popts->data_bus_width == 1) || (popts->data_bus_width == 2)) {
718 /* 32-bit or 16-bit bus */
719 popts->otf_burst_chop_en = 0;
720 popts->burst_length = DDR_BL8;
722 popts->otf_burst_chop_en = 1; /* on-the-fly burst chop */
723 popts->burst_length = DDR_OTF; /* on-the-fly BC4 and BL8 */
727 popts->burst_length = DDR_BL4; /* has to be 4 for DDR2 */
730 /* Choose ddr controller address mirror mode */
731 #if defined(CONFIG_SYS_FSL_DDR3) || defined(CONFIG_SYS_FSL_DDR4)
732 popts->mirrored_dimm = pdimm[0].mirrored_dimm;
735 /* Global Timing Parameters. */
736 debug("mclk_ps = %u ps\n", get_memory_clk_period_ps());
738 /* Pick a caslat override. */
739 popts->cas_latency_override = 0;
740 popts->cas_latency_override_value = 3;
741 if (popts->cas_latency_override) {
742 debug("using caslat override value = %u\n",
743 popts->cas_latency_override_value);
746 /* Decide whether to use the computed derated latency */
747 popts->use_derated_caslat = 0;
749 /* Choose an additive latency. */
750 popts->additive_latency_override = 0;
751 popts->additive_latency_override_value = 3;
752 if (popts->additive_latency_override) {
753 debug("using additive latency override value = %u\n",
754 popts->additive_latency_override_value);
760 * Factors to consider for 2T_EN:
761 * - number of DIMMs installed
762 * - number of components, number of active ranks
763 * - how much time you want to spend playing around
766 popts->threet_en = 0;
768 /* for RDIMM, address parity enable */
772 * BSTTOPRE precharge interval
774 * Set this to 0 for global auto precharge
775 * The value of 0x100 has been used for DDR1, DDR2, DDR3.
776 * It is not wrong. Any value should be OK. The performance depends on
777 * applications. There is no one good value for all.
779 popts->bstopre = 0x100;
781 /* Minimum CKE pulse width -- tCKE(MIN) */
782 popts->tcke_clock_pulse_width_ps
783 = mclk_to_picos(FSL_DDR_MIN_TCKE_PULSE_WIDTH_DDR);
786 * Window for four activates -- tFAW
788 * FIXME: UM: applies only to DDR2/DDR3 with eight logical banks only
789 * FIXME: varies depending upon number of column addresses or data
790 * FIXME: width, was considering looking at pdimm->primary_sdram_width
792 #if defined(CONFIG_SYS_FSL_DDR1)
793 popts->tfaw_window_four_activates_ps = mclk_to_picos(1);
795 #elif defined(CONFIG_SYS_FSL_DDR2)
797 * x4/x8; some datasheets have 35000
798 * x16 wide columns only? Use 50000?
800 popts->tfaw_window_four_activates_ps = 37500;
803 popts->tfaw_window_four_activates_ps = pdimm[0].tfaw_ps;
807 #if defined(CONFIG_SYS_FSL_DDR3) || defined(CONFIG_SYS_FSL_DDR4)
809 * due to ddr3 dimm is fly-by topology
810 * we suggest to enable write leveling to
811 * meet the tQDSS under different loading.
815 popts->wrlvl_override = 0;
819 * Check interleaving configuration from environment.
820 * Please refer to doc/README.fsl-ddr for the detail.
822 * If memory controller interleaving is enabled, then the data
823 * bus widths must be programmed identically for all memory controllers.
825 * Attempt to set all controllers to the same chip select
826 * interleaving mode. It will do a best effort to get the
827 * requested ranks interleaved together such that the result
828 * should be a subset of the requested configuration.
830 * if CONFIG_SYS_FSL_DDR_INTLV_256B is defined, mandatory interleaving
831 * with 256 Byte is enabled.
833 #if (CONFIG_NUM_DDR_CONTROLLERS > 1)
834 if (!hwconfig_sub_f("fsl_ddr", "ctlr_intlv", buf))
835 #ifdef CONFIG_SYS_FSL_DDR_INTLV_256B
840 if (pdimm[0].n_ranks == 0) {
841 printf("There is no rank on CS0 for controller %d.\n", ctrl_num);
842 popts->memctl_interleaving = 0;
845 popts->memctl_interleaving = 1;
846 #ifdef CONFIG_SYS_FSL_DDR_INTLV_256B
847 popts->memctl_interleaving_mode = FSL_DDR_256B_INTERLEAVING;
848 popts->memctl_interleaving = 1;
849 debug("256 Byte interleaving\n");
853 * test null first. if CONFIG_HWCONFIG is not defined
854 * hwconfig_arg_cmp returns non-zero
856 if (hwconfig_subarg_cmp_f("fsl_ddr", "ctlr_intlv",
858 popts->memctl_interleaving = 0;
859 debug("memory controller interleaving disabled.\n");
860 } else if (hwconfig_subarg_cmp_f("fsl_ddr",
863 popts->memctl_interleaving_mode =
864 ((CONFIG_NUM_DDR_CONTROLLERS == 3) && ctrl_num == 2) ?
865 0 : FSL_DDR_CACHE_LINE_INTERLEAVING;
866 popts->memctl_interleaving =
867 ((CONFIG_NUM_DDR_CONTROLLERS == 3) && ctrl_num == 2) ?
869 } else if (hwconfig_subarg_cmp_f("fsl_ddr",
872 popts->memctl_interleaving_mode =
873 ((CONFIG_NUM_DDR_CONTROLLERS == 3) && ctrl_num == 2) ?
874 0 : FSL_DDR_PAGE_INTERLEAVING;
875 popts->memctl_interleaving =
876 ((CONFIG_NUM_DDR_CONTROLLERS == 3) && ctrl_num == 2) ?
878 } else if (hwconfig_subarg_cmp_f("fsl_ddr",
881 popts->memctl_interleaving_mode =
882 ((CONFIG_NUM_DDR_CONTROLLERS == 3) && ctrl_num == 2) ?
883 0 : FSL_DDR_BANK_INTERLEAVING;
884 popts->memctl_interleaving =
885 ((CONFIG_NUM_DDR_CONTROLLERS == 3) && ctrl_num == 2) ?
887 } else if (hwconfig_subarg_cmp_f("fsl_ddr",
890 popts->memctl_interleaving_mode =
891 ((CONFIG_NUM_DDR_CONTROLLERS == 3) && ctrl_num == 2) ?
892 0 : FSL_DDR_SUPERBANK_INTERLEAVING;
893 popts->memctl_interleaving =
894 ((CONFIG_NUM_DDR_CONTROLLERS == 3) && ctrl_num == 2) ?
896 #if (CONFIG_NUM_DDR_CONTROLLERS == 3)
897 } else if (hwconfig_subarg_cmp_f("fsl_ddr",
900 popts->memctl_interleaving_mode =
901 FSL_DDR_3WAY_1KB_INTERLEAVING;
902 } else if (hwconfig_subarg_cmp_f("fsl_ddr",
905 popts->memctl_interleaving_mode =
906 FSL_DDR_3WAY_4KB_INTERLEAVING;
907 } else if (hwconfig_subarg_cmp_f("fsl_ddr",
910 popts->memctl_interleaving_mode =
911 FSL_DDR_3WAY_8KB_INTERLEAVING;
912 #elif (CONFIG_NUM_DDR_CONTROLLERS == 4)
913 } else if (hwconfig_subarg_cmp_f("fsl_ddr",
916 popts->memctl_interleaving_mode =
917 FSL_DDR_4WAY_1KB_INTERLEAVING;
918 } else if (hwconfig_subarg_cmp_f("fsl_ddr",
921 popts->memctl_interleaving_mode =
922 FSL_DDR_4WAY_4KB_INTERLEAVING;
923 } else if (hwconfig_subarg_cmp_f("fsl_ddr",
926 popts->memctl_interleaving_mode =
927 FSL_DDR_4WAY_8KB_INTERLEAVING;
930 popts->memctl_interleaving = 0;
931 printf("hwconfig has unrecognized parameter for ctlr_intlv.\n");
935 if ((hwconfig_sub_f("fsl_ddr", "bank_intlv", buf)) &&
936 (CONFIG_CHIP_SELECTS_PER_CTRL > 1)) {
937 /* test null first. if CONFIG_HWCONFIG is not defined,
938 * hwconfig_subarg_cmp_f returns non-zero */
939 if (hwconfig_subarg_cmp_f("fsl_ddr", "bank_intlv",
941 debug("bank interleaving disabled.\n");
942 else if (hwconfig_subarg_cmp_f("fsl_ddr", "bank_intlv",
944 popts->ba_intlv_ctl = FSL_DDR_CS0_CS1;
945 else if (hwconfig_subarg_cmp_f("fsl_ddr", "bank_intlv",
947 popts->ba_intlv_ctl = FSL_DDR_CS2_CS3;
948 else if (hwconfig_subarg_cmp_f("fsl_ddr", "bank_intlv",
949 "cs0_cs1_and_cs2_cs3", buf))
950 popts->ba_intlv_ctl = FSL_DDR_CS0_CS1_AND_CS2_CS3;
951 else if (hwconfig_subarg_cmp_f("fsl_ddr", "bank_intlv",
952 "cs0_cs1_cs2_cs3", buf))
953 popts->ba_intlv_ctl = FSL_DDR_CS0_CS1_CS2_CS3;
954 else if (hwconfig_subarg_cmp_f("fsl_ddr", "bank_intlv",
956 popts->ba_intlv_ctl = auto_bank_intlv(pdimm);
958 printf("hwconfig has unrecognized parameter for bank_intlv.\n");
959 switch (popts->ba_intlv_ctl & FSL_DDR_CS0_CS1_CS2_CS3) {
960 case FSL_DDR_CS0_CS1_CS2_CS3:
961 #if (CONFIG_DIMM_SLOTS_PER_CTLR == 1)
962 if (pdimm[0].n_ranks < 4) {
963 popts->ba_intlv_ctl = 0;
964 printf("Not enough bank(chip-select) for "
965 "CS0+CS1+CS2+CS3 on controller %d, "
966 "interleaving disabled!\n", ctrl_num);
968 #elif (CONFIG_DIMM_SLOTS_PER_CTLR == 2)
969 #ifdef CONFIG_FSL_DDR_FIRST_SLOT_QUAD_CAPABLE
970 if (pdimm[0].n_ranks == 4)
973 if ((pdimm[0].n_ranks < 2) && (pdimm[1].n_ranks < 2)) {
974 popts->ba_intlv_ctl = 0;
975 printf("Not enough bank(chip-select) for "
976 "CS0+CS1+CS2+CS3 on controller %d, "
977 "interleaving disabled!\n", ctrl_num);
979 if (pdimm[0].capacity != pdimm[1].capacity) {
980 popts->ba_intlv_ctl = 0;
981 printf("Not identical DIMM size for "
982 "CS0+CS1+CS2+CS3 on controller %d, "
983 "interleaving disabled!\n", ctrl_num);
987 case FSL_DDR_CS0_CS1:
988 if (pdimm[0].n_ranks < 2) {
989 popts->ba_intlv_ctl = 0;
990 printf("Not enough bank(chip-select) for "
991 "CS0+CS1 on controller %d, "
992 "interleaving disabled!\n", ctrl_num);
995 case FSL_DDR_CS2_CS3:
996 #if (CONFIG_DIMM_SLOTS_PER_CTLR == 1)
997 if (pdimm[0].n_ranks < 4) {
998 popts->ba_intlv_ctl = 0;
999 printf("Not enough bank(chip-select) for CS2+CS3 "
1000 "on controller %d, interleaving disabled!\n", ctrl_num);
1002 #elif (CONFIG_DIMM_SLOTS_PER_CTLR == 2)
1003 if (pdimm[1].n_ranks < 2) {
1004 popts->ba_intlv_ctl = 0;
1005 printf("Not enough bank(chip-select) for CS2+CS3 "
1006 "on controller %d, interleaving disabled!\n", ctrl_num);
1010 case FSL_DDR_CS0_CS1_AND_CS2_CS3:
1011 #if (CONFIG_DIMM_SLOTS_PER_CTLR == 1)
1012 if (pdimm[0].n_ranks < 4) {
1013 popts->ba_intlv_ctl = 0;
1014 printf("Not enough bank(CS) for CS0+CS1 and "
1015 "CS2+CS3 on controller %d, "
1016 "interleaving disabled!\n", ctrl_num);
1018 #elif (CONFIG_DIMM_SLOTS_PER_CTLR == 2)
1019 if ((pdimm[0].n_ranks < 2) || (pdimm[1].n_ranks < 2)) {
1020 popts->ba_intlv_ctl = 0;
1021 printf("Not enough bank(CS) for CS0+CS1 and "
1022 "CS2+CS3 on controller %d, "
1023 "interleaving disabled!\n", ctrl_num);
1028 popts->ba_intlv_ctl = 0;
1033 if (hwconfig_sub_f("fsl_ddr", "addr_hash", buf)) {
1034 if (hwconfig_subarg_cmp_f("fsl_ddr", "addr_hash", "null", buf))
1035 popts->addr_hash = 0;
1036 else if (hwconfig_subarg_cmp_f("fsl_ddr", "addr_hash",
1038 popts->addr_hash = 1;
1041 if (pdimm[0].n_ranks == 4)
1042 popts->quad_rank_present = 1;
1044 ddr_freq = get_ddr_freq(0) / 1000000;
1045 if (popts->registered_dimm_en) {
1046 popts->rcw_override = 1;
1047 popts->rcw_1 = 0x000a5a00;
1048 if (ddr_freq <= 800)
1049 popts->rcw_2 = 0x00000000;
1050 else if (ddr_freq <= 1066)
1051 popts->rcw_2 = 0x00100000;
1052 else if (ddr_freq <= 1333)
1053 popts->rcw_2 = 0x00200000;
1055 popts->rcw_2 = 0x00300000;
1058 fsl_ddr_board_options(popts, pdimm, ctrl_num);
1063 void check_interleaving_options(fsl_ddr_info_t *pinfo)
1065 int i, j, k, check_n_ranks, intlv_invalid = 0;
1066 unsigned int check_intlv, check_n_row_addr, check_n_col_addr;
1067 unsigned long long check_rank_density;
1068 struct dimm_params_s *dimm;
1070 * Check if all controllers are configured for memory
1071 * controller interleaving. Identical dimms are recommended. At least
1072 * the size, row and col address should be checked.
1075 check_n_ranks = pinfo->dimm_params[0][0].n_ranks;
1076 check_rank_density = pinfo->dimm_params[0][0].rank_density;
1077 check_n_row_addr = pinfo->dimm_params[0][0].n_row_addr;
1078 check_n_col_addr = pinfo->dimm_params[0][0].n_col_addr;
1079 check_intlv = pinfo->memctl_opts[0].memctl_interleaving_mode;
1080 for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) {
1081 dimm = &pinfo->dimm_params[i][0];
1082 if (!pinfo->memctl_opts[i].memctl_interleaving) {
1084 } else if (((check_rank_density != dimm->rank_density) ||
1085 (check_n_ranks != dimm->n_ranks) ||
1086 (check_n_row_addr != dimm->n_row_addr) ||
1087 (check_n_col_addr != dimm->n_col_addr) ||
1089 pinfo->memctl_opts[i].memctl_interleaving_mode))){
1097 if (intlv_invalid) {
1098 for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++)
1099 pinfo->memctl_opts[i].memctl_interleaving = 0;
1100 printf("Not all DIMMs are identical. "
1101 "Memory controller interleaving disabled.\n");
1103 switch (check_intlv) {
1104 case FSL_DDR_256B_INTERLEAVING:
1105 case FSL_DDR_CACHE_LINE_INTERLEAVING:
1106 case FSL_DDR_PAGE_INTERLEAVING:
1107 case FSL_DDR_BANK_INTERLEAVING:
1108 case FSL_DDR_SUPERBANK_INTERLEAVING:
1109 if (3 == CONFIG_NUM_DDR_CONTROLLERS)
1112 k = CONFIG_NUM_DDR_CONTROLLERS;
1114 case FSL_DDR_3WAY_1KB_INTERLEAVING:
1115 case FSL_DDR_3WAY_4KB_INTERLEAVING:
1116 case FSL_DDR_3WAY_8KB_INTERLEAVING:
1117 case FSL_DDR_4WAY_1KB_INTERLEAVING:
1118 case FSL_DDR_4WAY_4KB_INTERLEAVING:
1119 case FSL_DDR_4WAY_8KB_INTERLEAVING:
1121 k = CONFIG_NUM_DDR_CONTROLLERS;
1124 debug("%d of %d controllers are interleaving.\n", j, k);
1125 if (j && (j != k)) {
1126 for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++)
1127 pinfo->memctl_opts[i].memctl_interleaving = 0;
1128 printf("Not all controllers have compatible "
1129 "interleaving mode. All disabled.\n");
1132 debug("Checking interleaving options completed\n");
1135 int fsl_use_spd(void)
1139 #ifdef CONFIG_DDR_SPD
1140 char buffer[HWCONFIG_BUFFER_SIZE];
1144 * Extract hwconfig from environment since we have not properly setup
1145 * the environment but need it for ddr config params
1147 if (getenv_f("hwconfig", buffer, sizeof(buffer)) > 0)
1150 /* if hwconfig is not enabled, or "sdram" is not defined, use spd */
1151 if (hwconfig_sub_f("fsl_ddr", "sdram", buf)) {
1152 if (hwconfig_subarg_cmp_f("fsl_ddr", "sdram", "spd", buf))
1154 else if (hwconfig_subarg_cmp_f("fsl_ddr", "sdram",