drivers/ddr/fsl/options.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright 2008, 2010-2016 Freescale Semiconductor, Inc.
   4  * Copyright 2017-2018 NXP Semiconductor
   5  */
   6
   7 #include <common.h>
   8 #include <env.h>
   9 #include <hwconfig.h>
  10 #include <fsl_ddr_sdram.h>
  11 #include <log.h>
  12
  13 #include <fsl_ddr.h>
  14 #if defined(CONFIG_FSL_LSCH2) || defined(CONFIG_FSL_LSCH3) || \
  15         defined(CONFIG_ARM)
  16 #include <asm/arch/clock.h>
  17 #endif
  18
  19 /*
  20  * Use our own stack based buffer before relocation to allow accessing longer
  21  * hwconfig strings that might be in the environment before we've relocated.
  22  * This is pretty fragile on both the use of stack and if the buffer is big
  23  * enough. However we will get a warning from env_get_f() for the latter.
  24  */
  25
  26 /* Board-specific functions defined in each board's ddr.c */
  27 void __weak fsl_ddr_board_options(memctl_options_t *popts,
  28                                   dimm_params_t *pdimm,
  29                                   unsigned int ctrl_num)
  30 {
  31         return;
  32 }
  33
  34 struct dynamic_odt {
  35         unsigned int odt_rd_cfg;
  36         unsigned int odt_wr_cfg;
  37         unsigned int odt_rtt_norm;
  38         unsigned int odt_rtt_wr;
  39 };
  40
  41 #ifdef CONFIG_SYS_FSL_DDR4
  42 /* Quad rank is not verified yet due availability.
  43  * Replacing 20 OHM with 34 OHM since DDR4 doesn't have 20 OHM option
  44  */
  45 static __maybe_unused const struct dynamic_odt single_Q[4] = {
  46         {       /* cs0 */
  47                 FSL_DDR_ODT_NEVER,
  48                 FSL_DDR_ODT_CS_AND_OTHER_DIMM,
  49                 DDR4_RTT_34_OHM,        /* unverified */
  50                 DDR4_RTT_120_OHM
  51         },
  52         {       /* cs1 */
  53                 FSL_DDR_ODT_NEVER,
  54                 FSL_DDR_ODT_NEVER,
  55                 DDR4_RTT_OFF,
  56                 DDR4_RTT_120_OHM
  57         },
  58         {       /* cs2 */
  59                 FSL_DDR_ODT_NEVER,
  60                 FSL_DDR_ODT_CS_AND_OTHER_DIMM,
  61                 DDR4_RTT_34_OHM,
  62                 DDR4_RTT_120_OHM
  63         },
  64         {       /* cs3 */
  65                 FSL_DDR_ODT_NEVER,
  66                 FSL_DDR_ODT_NEVER,      /* tied high */
  67                 DDR4_RTT_OFF,
  68                 DDR4_RTT_120_OHM
  69         }
  70 };
  71
  72 static __maybe_unused const struct dynamic_odt single_D[4] = {
  73         {       /* cs0 */
  74                 FSL_DDR_ODT_NEVER,
  75                 FSL_DDR_ODT_ALL,
  76                 DDR4_RTT_40_OHM,
  77                 DDR4_RTT_OFF
  78         },
  79         {       /* cs1 */
  80                 FSL_DDR_ODT_NEVER,
  81                 FSL_DDR_ODT_NEVER,
  82                 DDR4_RTT_OFF,
  83                 DDR4_RTT_OFF
  84         },
  85         {0, 0, 0, 0},
  86         {0, 0, 0, 0}
  87 };
  88
  89 static __maybe_unused const struct dynamic_odt single_S[4] = {
  90         {       /* cs0 */
  91                 FSL_DDR_ODT_NEVER,
  92                 FSL_DDR_ODT_ALL,
  93                 DDR4_RTT_40_OHM,
  94                 DDR4_RTT_OFF
  95         },
  96         {0, 0, 0, 0},
  97         {0, 0, 0, 0},
  98         {0, 0, 0, 0},
  99 };
 100
 101 static __maybe_unused const struct dynamic_odt dual_DD[4] = {
 102         {       /* cs0 */
 103                 FSL_DDR_ODT_NEVER,
 104                 FSL_DDR_ODT_SAME_DIMM,
 105                 DDR4_RTT_120_OHM,
 106                 DDR4_RTT_OFF
 107         },
 108         {       /* cs1 */
 109                 FSL_DDR_ODT_OTHER_DIMM,
 110                 FSL_DDR_ODT_OTHER_DIMM,
 111                 DDR4_RTT_34_OHM,
 112                 DDR4_RTT_OFF
 113         },
 114         {       /* cs2 */
 115                 FSL_DDR_ODT_NEVER,
 116                 FSL_DDR_ODT_SAME_DIMM,
 117                 DDR4_RTT_120_OHM,
 118                 DDR4_RTT_OFF
 119         },
 120         {       /* cs3 */
 121                 FSL_DDR_ODT_OTHER_DIMM,
 122                 FSL_DDR_ODT_OTHER_DIMM,
 123                 DDR4_RTT_34_OHM,
 124                 DDR4_RTT_OFF
 125         }
 126 };
 127
 128 static __maybe_unused const struct dynamic_odt dual_DS[4] = {
 129         {       /* cs0 */
 130                 FSL_DDR_ODT_NEVER,
 131                 FSL_DDR_ODT_SAME_DIMM,
 132                 DDR4_RTT_120_OHM,
 133                 DDR4_RTT_OFF
 134         },
 135         {       /* cs1 */
 136                 FSL_DDR_ODT_OTHER_DIMM,
 137                 FSL_DDR_ODT_OTHER_DIMM,
 138                 DDR4_RTT_34_OHM,
 139                 DDR4_RTT_OFF
 140         },
 141         {       /* cs2 */
 142                 FSL_DDR_ODT_OTHER_DIMM,
 143                 FSL_DDR_ODT_ALL,
 144                 DDR4_RTT_34_OHM,
 145                 DDR4_RTT_120_OHM
 146         },
 147         {0, 0, 0, 0}
 148 };
 149 static __maybe_unused const struct dynamic_odt dual_SD[4] = {
 150         {       /* cs0 */
 151                 FSL_DDR_ODT_OTHER_DIMM,
 152                 FSL_DDR_ODT_ALL,
 153                 DDR4_RTT_34_OHM,
 154                 DDR4_RTT_120_OHM
 155         },
 156         {0, 0, 0, 0},
 157         {       /* cs2 */
 158                 FSL_DDR_ODT_NEVER,
 159                 FSL_DDR_ODT_SAME_DIMM,
 160                 DDR4_RTT_120_OHM,
 161                 DDR4_RTT_OFF
 162         },
 163         {       /* cs3 */
 164                 FSL_DDR_ODT_OTHER_DIMM,
 165                 FSL_DDR_ODT_OTHER_DIMM,
 166                 DDR4_RTT_34_OHM,
 167                 DDR4_RTT_OFF
 168         }
 169 };
 170
 171 static __maybe_unused const struct dynamic_odt dual_SS[4] = {
 172         {       /* cs0 */
 173                 FSL_DDR_ODT_OTHER_DIMM,
 174                 FSL_DDR_ODT_ALL,
 175                 DDR4_RTT_34_OHM,
 176                 DDR4_RTT_120_OHM
 177         },
 178         {0, 0, 0, 0},
 179         {       /* cs2 */
 180                 FSL_DDR_ODT_OTHER_DIMM,
 181                 FSL_DDR_ODT_ALL,
 182                 DDR4_RTT_34_OHM,
 183                 DDR4_RTT_120_OHM
 184         },
 185         {0, 0, 0, 0}
 186 };
 187
 188 static __maybe_unused const struct dynamic_odt dual_D0[4] = {
 189         {       /* cs0 */
 190                 FSL_DDR_ODT_NEVER,
 191                 FSL_DDR_ODT_SAME_DIMM,
 192                 DDR4_RTT_40_OHM,
 193                 DDR4_RTT_OFF
 194         },
 195         {       /* cs1 */
 196                 FSL_DDR_ODT_NEVER,
 197                 FSL_DDR_ODT_NEVER,
 198                 DDR4_RTT_OFF,
 199                 DDR4_RTT_OFF
 200         },
 201         {0, 0, 0, 0},
 202         {0, 0, 0, 0}
 203 };
 204
 205 static __maybe_unused const struct dynamic_odt dual_0D[4] = {
 206         {0, 0, 0, 0},
 207         {0, 0, 0, 0},
 208         {       /* cs2 */
 209                 FSL_DDR_ODT_NEVER,
 210                 FSL_DDR_ODT_SAME_DIMM,
 211                 DDR4_RTT_40_OHM,
 212                 DDR4_RTT_OFF
 213         },
 214         {       /* cs3 */
 215                 FSL_DDR_ODT_NEVER,
 216                 FSL_DDR_ODT_NEVER,
 217                 DDR4_RTT_OFF,
 218                 DDR4_RTT_OFF
 219         }
 220 };
 221
 222 static __maybe_unused const struct dynamic_odt dual_S0[4] = {
 223         {       /* cs0 */
 224                 FSL_DDR_ODT_NEVER,
 225                 FSL_DDR_ODT_CS,
 226                 DDR4_RTT_40_OHM,
 227                 DDR4_RTT_OFF
 228         },
 229         {0, 0, 0, 0},
 230         {0, 0, 0, 0},
 231         {0, 0, 0, 0}
 232
 233 };
 234
 235 static __maybe_unused const struct dynamic_odt dual_0S[4] = {
 236         {0, 0, 0, 0},
 237         {0, 0, 0, 0},
 238         {       /* cs2 */
 239                 FSL_DDR_ODT_NEVER,
 240                 FSL_DDR_ODT_CS,
 241                 DDR4_RTT_40_OHM,
 242                 DDR4_RTT_OFF
 243         },
 244         {0, 0, 0, 0}
 245
 246 };
 247
 248 static __maybe_unused const struct dynamic_odt odt_unknown[4] = {
 249         {       /* cs0 */
 250                 FSL_DDR_ODT_NEVER,
 251                 FSL_DDR_ODT_CS,
 252                 DDR4_RTT_120_OHM,
 253                 DDR4_RTT_OFF
 254         },
 255         {       /* cs1 */
 256                 FSL_DDR_ODT_NEVER,
 257                 FSL_DDR_ODT_CS,
 258                 DDR4_RTT_120_OHM,
 259                 DDR4_RTT_OFF
 260         },
 261         {       /* cs2 */
 262                 FSL_DDR_ODT_NEVER,
 263                 FSL_DDR_ODT_CS,
 264                 DDR4_RTT_120_OHM,
 265                 DDR4_RTT_OFF
 266         },
 267         {       /* cs3 */
 268                 FSL_DDR_ODT_NEVER,
 269                 FSL_DDR_ODT_CS,
 270                 DDR4_RTT_120_OHM,
 271                 DDR4_RTT_OFF
 272         }
 273 };
 274 #elif defined(CONFIG_SYS_FSL_DDR3)
 275 static __maybe_unused const struct dynamic_odt single_Q[4] = {
 276         {       /* cs0 */
 277                 FSL_DDR_ODT_NEVER,
 278                 FSL_DDR_ODT_CS_AND_OTHER_DIMM,
 279                 DDR3_RTT_20_OHM,
 280                 DDR3_RTT_120_OHM
 281         },
 282         {       /* cs1 */
 283                 FSL_DDR_ODT_NEVER,
 284                 FSL_DDR_ODT_NEVER,      /* tied high */
 285                 DDR3_RTT_OFF,
 286                 DDR3_RTT_120_OHM
 287         },
 288         {       /* cs2 */
 289                 FSL_DDR_ODT_NEVER,
 290                 FSL_DDR_ODT_CS_AND_OTHER_DIMM,
 291                 DDR3_RTT_20_OHM,
 292                 DDR3_RTT_120_OHM
 293         },
 294         {       /* cs3 */
 295                 FSL_DDR_ODT_NEVER,
 296                 FSL_DDR_ODT_NEVER,      /* tied high */
 297                 DDR3_RTT_OFF,
 298                 DDR3_RTT_120_OHM
 299         }
 300 };
 301
 302 static __maybe_unused const struct dynamic_odt single_D[4] = {
 303         {       /* cs0 */
 304                 FSL_DDR_ODT_NEVER,
 305                 FSL_DDR_ODT_ALL,
 306                 DDR3_RTT_40_OHM,
 307                 DDR3_RTT_OFF
 308         },
 309         {       /* cs1 */
 310                 FSL_DDR_ODT_NEVER,
 311                 FSL_DDR_ODT_NEVER,
 312                 DDR3_RTT_OFF,
 313                 DDR3_RTT_OFF
 314         },
 315         {0, 0, 0, 0},
 316         {0, 0, 0, 0}
 317 };
 318
 319 static __maybe_unused const struct dynamic_odt single_S[4] = {
 320         {       /* cs0 */
 321                 FSL_DDR_ODT_NEVER,
 322                 FSL_DDR_ODT_ALL,
 323                 DDR3_RTT_40_OHM,
 324                 DDR3_RTT_OFF
 325         },
 326         {0, 0, 0, 0},
 327         {0, 0, 0, 0},
 328         {0, 0, 0, 0},
 329 };
 330
 331 static __maybe_unused const struct dynamic_odt dual_DD[4] = {
 332         {       /* cs0 */
 333                 FSL_DDR_ODT_NEVER,
 334                 FSL_DDR_ODT_SAME_DIMM,
 335                 DDR3_RTT_120_OHM,
 336                 DDR3_RTT_OFF
 337         },
 338         {       /* cs1 */
 339                 FSL_DDR_ODT_OTHER_DIMM,
 340                 FSL_DDR_ODT_OTHER_DIMM,
 341                 DDR3_RTT_30_OHM,
 342                 DDR3_RTT_OFF
 343         },
 344         {       /* cs2 */
 345                 FSL_DDR_ODT_NEVER,
 346                 FSL_DDR_ODT_SAME_DIMM,
 347                 DDR3_RTT_120_OHM,
 348                 DDR3_RTT_OFF
 349         },
 350         {       /* cs3 */
 351                 FSL_DDR_ODT_OTHER_DIMM,
 352                 FSL_DDR_ODT_OTHER_DIMM,
 353                 DDR3_RTT_30_OHM,
 354                 DDR3_RTT_OFF
 355         }
 356 };
 357
 358 static __maybe_unused const struct dynamic_odt dual_DS[4] = {
 359         {       /* cs0 */
 360                 FSL_DDR_ODT_NEVER,
 361                 FSL_DDR_ODT_SAME_DIMM,
 362                 DDR3_RTT_120_OHM,
 363                 DDR3_RTT_OFF
 364         },
 365         {       /* cs1 */
 366                 FSL_DDR_ODT_OTHER_DIMM,
 367                 FSL_DDR_ODT_OTHER_DIMM,
 368                 DDR3_RTT_30_OHM,
 369                 DDR3_RTT_OFF
 370         },
 371         {       /* cs2 */
 372                 FSL_DDR_ODT_OTHER_DIMM,
 373                 FSL_DDR_ODT_ALL,
 374                 DDR3_RTT_20_OHM,
 375                 DDR3_RTT_120_OHM
 376         },
 377         {0, 0, 0, 0}
 378 };
 379 static __maybe_unused const struct dynamic_odt dual_SD[4] = {
 380         {       /* cs0 */
 381                 FSL_DDR_ODT_OTHER_DIMM,
 382                 FSL_DDR_ODT_ALL,
 383                 DDR3_RTT_20_OHM,
 384                 DDR3_RTT_120_OHM
 385         },
 386         {0, 0, 0, 0},
 387         {       /* cs2 */
 388                 FSL_DDR_ODT_NEVER,
 389                 FSL_DDR_ODT_SAME_DIMM,
 390                 DDR3_RTT_120_OHM,
 391                 DDR3_RTT_OFF
 392         },
 393         {       /* cs3 */
 394                 FSL_DDR_ODT_OTHER_DIMM,
 395                 FSL_DDR_ODT_OTHER_DIMM,
 396                 DDR3_RTT_20_OHM,
 397                 DDR3_RTT_OFF
 398         }
 399 };
 400
 401 static __maybe_unused const struct dynamic_odt dual_SS[4] = {
 402         {       /* cs0 */
 403                 FSL_DDR_ODT_OTHER_DIMM,
 404                 FSL_DDR_ODT_ALL,
 405                 DDR3_RTT_30_OHM,
 406                 DDR3_RTT_120_OHM
 407         },
 408         {0, 0, 0, 0},
 409         {       /* cs2 */
 410                 FSL_DDR_ODT_OTHER_DIMM,
 411                 FSL_DDR_ODT_ALL,
 412                 DDR3_RTT_30_OHM,
 413                 DDR3_RTT_120_OHM
 414         },
 415         {0, 0, 0, 0}
 416 };
 417
 418 static __maybe_unused const struct dynamic_odt dual_D0[4] = {
 419         {       /* cs0 */
 420                 FSL_DDR_ODT_NEVER,
 421                 FSL_DDR_ODT_SAME_DIMM,
 422                 DDR3_RTT_40_OHM,
 423                 DDR3_RTT_OFF
 424         },
 425         {       /* cs1 */
 426                 FSL_DDR_ODT_NEVER,
 427                 FSL_DDR_ODT_NEVER,
 428                 DDR3_RTT_OFF,
 429                 DDR3_RTT_OFF
 430         },
 431         {0, 0, 0, 0},
 432         {0, 0, 0, 0}
 433 };
 434
 435 static __maybe_unused const struct dynamic_odt dual_0D[4] = {
 436         {0, 0, 0, 0},
 437         {0, 0, 0, 0},
 438         {       /* cs2 */
 439                 FSL_DDR_ODT_NEVER,
 440                 FSL_DDR_ODT_SAME_DIMM,
 441                 DDR3_RTT_40_OHM,
 442                 DDR3_RTT_OFF
 443         },
 444         {       /* cs3 */
 445                 FSL_DDR_ODT_NEVER,
 446                 FSL_DDR_ODT_NEVER,
 447                 DDR3_RTT_OFF,
 448                 DDR3_RTT_OFF
 449         }
 450 };
 451
 452 static __maybe_unused const struct dynamic_odt dual_S0[4] = {
 453         {       /* cs0 */
 454                 FSL_DDR_ODT_NEVER,
 455                 FSL_DDR_ODT_CS,
 456                 DDR3_RTT_40_OHM,
 457                 DDR3_RTT_OFF
 458         },
 459         {0, 0, 0, 0},
 460         {0, 0, 0, 0},
 461         {0, 0, 0, 0}
 462
 463 };
 464
 465 static __maybe_unused const struct dynamic_odt dual_0S[4] = {
 466         {0, 0, 0, 0},
 467         {0, 0, 0, 0},
 468         {       /* cs2 */
 469                 FSL_DDR_ODT_NEVER,
 470                 FSL_DDR_ODT_CS,
 471                 DDR3_RTT_40_OHM,
 472                 DDR3_RTT_OFF
 473         },
 474         {0, 0, 0, 0}
 475
 476 };
 477
 478 static __maybe_unused const struct dynamic_odt odt_unknown[4] = {
 479         {       /* cs0 */
 480                 FSL_DDR_ODT_NEVER,
 481                 FSL_DDR_ODT_CS,
 482                 DDR3_RTT_120_OHM,
 483                 DDR3_RTT_OFF
 484         },
 485         {       /* cs1 */
 486                 FSL_DDR_ODT_NEVER,
 487                 FSL_DDR_ODT_CS,
 488                 DDR3_RTT_120_OHM,
 489                 DDR3_RTT_OFF
 490         },
 491         {       /* cs2 */
 492                 FSL_DDR_ODT_NEVER,
 493                 FSL_DDR_ODT_CS,
 494                 DDR3_RTT_120_OHM,
 495                 DDR3_RTT_OFF
 496         },
 497         {       /* cs3 */
 498                 FSL_DDR_ODT_NEVER,
 499                 FSL_DDR_ODT_CS,
 500                 DDR3_RTT_120_OHM,
 501                 DDR3_RTT_OFF
 502         }
 503 };
 504 #else   /* CONFIG_SYS_FSL_DDR3 */
 505 static __maybe_unused const struct dynamic_odt single_Q[4] = {
 506         {0, 0, 0, 0},
 507         {0, 0, 0, 0},
 508         {0, 0, 0, 0},
 509         {0, 0, 0, 0}
 510 };
 511
 512 static __maybe_unused const struct dynamic_odt single_D[4] = {
 513         {       /* cs0 */
 514                 FSL_DDR_ODT_NEVER,
 515                 FSL_DDR_ODT_ALL,
 516                 DDR2_RTT_150_OHM,
 517                 DDR2_RTT_OFF
 518         },
 519         {       /* cs1 */
 520                 FSL_DDR_ODT_NEVER,
 521                 FSL_DDR_ODT_NEVER,
 522                 DDR2_RTT_OFF,
 523                 DDR2_RTT_OFF
 524         },
 525         {0, 0, 0, 0},
 526         {0, 0, 0, 0}
 527 };
 528
 529 static __maybe_unused const struct dynamic_odt single_S[4] = {
 530         {       /* cs0 */
 531                 FSL_DDR_ODT_NEVER,
 532                 FSL_DDR_ODT_ALL,
 533                 DDR2_RTT_150_OHM,
 534                 DDR2_RTT_OFF
 535         },
 536         {0, 0, 0, 0},
 537         {0, 0, 0, 0},
 538         {0, 0, 0, 0},
 539 };
 540
 541 static __maybe_unused const struct dynamic_odt dual_DD[4] = {
 542         {       /* cs0 */
 543                 FSL_DDR_ODT_OTHER_DIMM,
 544                 FSL_DDR_ODT_OTHER_DIMM,
 545                 DDR2_RTT_75_OHM,
 546                 DDR2_RTT_OFF
 547         },
 548         {       /* cs1 */
 549                 FSL_DDR_ODT_NEVER,
 550                 FSL_DDR_ODT_NEVER,
 551                 DDR2_RTT_OFF,
 552                 DDR2_RTT_OFF
 553         },
 554         {       /* cs2 */
 555                 FSL_DDR_ODT_OTHER_DIMM,
 556                 FSL_DDR_ODT_OTHER_DIMM,
 557                 DDR2_RTT_75_OHM,
 558                 DDR2_RTT_OFF
 559         },
 560         {       /* cs3 */
 561                 FSL_DDR_ODT_NEVER,
 562                 FSL_DDR_ODT_NEVER,
 563                 DDR2_RTT_OFF,
 564                 DDR2_RTT_OFF
 565         }
 566 };
 567
 568 static __maybe_unused const struct dynamic_odt dual_DS[4] = {
 569         {       /* cs0 */
 570                 FSL_DDR_ODT_OTHER_DIMM,
 571                 FSL_DDR_ODT_OTHER_DIMM,
 572                 DDR2_RTT_75_OHM,
 573                 DDR2_RTT_OFF
 574         },
 575         {       /* cs1 */
 576                 FSL_DDR_ODT_NEVER,
 577                 FSL_DDR_ODT_NEVER,
 578                 DDR2_RTT_OFF,
 579                 DDR2_RTT_OFF
 580         },
 581         {       /* cs2 */
 582                 FSL_DDR_ODT_OTHER_DIMM,
 583                 FSL_DDR_ODT_OTHER_DIMM,
 584                 DDR2_RTT_75_OHM,
 585                 DDR2_RTT_OFF
 586         },
 587         {0, 0, 0, 0}
 588 };
 589
 590 static __maybe_unused const struct dynamic_odt dual_SD[4] = {
 591         {       /* cs0 */
 592                 FSL_DDR_ODT_OTHER_DIMM,
 593                 FSL_DDR_ODT_OTHER_DIMM,
 594                 DDR2_RTT_75_OHM,
 595                 DDR2_RTT_OFF
 596         },
 597         {0, 0, 0, 0},
 598         {       /* cs2 */
 599                 FSL_DDR_ODT_OTHER_DIMM,
 600                 FSL_DDR_ODT_OTHER_DIMM,
 601                 DDR2_RTT_75_OHM,
 602                 DDR2_RTT_OFF
 603         },
 604         {       /* cs3 */
 605                 FSL_DDR_ODT_NEVER,
 606                 FSL_DDR_ODT_NEVER,
 607                 DDR2_RTT_OFF,
 608                 DDR2_RTT_OFF
 609         }
 610 };
 611
 612 static __maybe_unused const struct dynamic_odt dual_SS[4] = {
 613         {       /* cs0 */
 614                 FSL_DDR_ODT_OTHER_DIMM,
 615                 FSL_DDR_ODT_OTHER_DIMM,
 616                 DDR2_RTT_75_OHM,
 617                 DDR2_RTT_OFF
 618         },
 619         {0, 0, 0, 0},
 620         {       /* cs2 */
 621                 FSL_DDR_ODT_OTHER_DIMM,
 622                 FSL_DDR_ODT_OTHER_DIMM,
 623                 DDR2_RTT_75_OHM,
 624                 DDR2_RTT_OFF
 625         },
 626         {0, 0, 0, 0}
 627 };
 628
 629 static __maybe_unused const struct dynamic_odt dual_D0[4] = {
 630         {       /* cs0 */
 631                 FSL_DDR_ODT_NEVER,
 632                 FSL_DDR_ODT_ALL,
 633                 DDR2_RTT_150_OHM,
 634                 DDR2_RTT_OFF
 635         },
 636         {       /* cs1 */
 637                 FSL_DDR_ODT_NEVER,
 638                 FSL_DDR_ODT_NEVER,
 639                 DDR2_RTT_OFF,
 640                 DDR2_RTT_OFF
 641         },
 642         {0, 0, 0, 0},
 643         {0, 0, 0, 0}
 644 };
 645
 646 static __maybe_unused const struct dynamic_odt dual_0D[4] = {
 647         {0, 0, 0, 0},
 648         {0, 0, 0, 0},
 649         {       /* cs2 */
 650                 FSL_DDR_ODT_NEVER,
 651                 FSL_DDR_ODT_ALL,
 652                 DDR2_RTT_150_OHM,
 653                 DDR2_RTT_OFF
 654         },
 655         {       /* cs3 */
 656                 FSL_DDR_ODT_NEVER,
 657                 FSL_DDR_ODT_NEVER,
 658                 DDR2_RTT_OFF,
 659                 DDR2_RTT_OFF
 660         }
 661 };
 662
 663 static __maybe_unused const struct dynamic_odt dual_S0[4] = {
 664         {       /* cs0 */
 665                 FSL_DDR_ODT_NEVER,
 666                 FSL_DDR_ODT_CS,
 667                 DDR2_RTT_150_OHM,
 668                 DDR2_RTT_OFF
 669         },
 670         {0, 0, 0, 0},
 671         {0, 0, 0, 0},
 672         {0, 0, 0, 0}
 673
 674 };
 675
 676 static __maybe_unused const struct dynamic_odt dual_0S[4] = {
 677         {0, 0, 0, 0},
 678         {0, 0, 0, 0},
 679         {       /* cs2 */
 680                 FSL_DDR_ODT_NEVER,
 681                 FSL_DDR_ODT_CS,
 682                 DDR2_RTT_150_OHM,
 683                 DDR2_RTT_OFF
 684         },
 685         {0, 0, 0, 0}
 686
 687 };
 688
 689 static __maybe_unused const struct dynamic_odt odt_unknown[4] = {
 690         {       /* cs0 */
 691                 FSL_DDR_ODT_NEVER,
 692                 FSL_DDR_ODT_CS,
 693                 DDR2_RTT_75_OHM,
 694                 DDR2_RTT_OFF
 695         },
 696         {       /* cs1 */
 697                 FSL_DDR_ODT_NEVER,
 698                 FSL_DDR_ODT_NEVER,
 699                 DDR2_RTT_OFF,
 700                 DDR2_RTT_OFF
 701         },
 702         {       /* cs2 */
 703                 FSL_DDR_ODT_NEVER,
 704                 FSL_DDR_ODT_CS,
 705                 DDR2_RTT_75_OHM,
 706                 DDR2_RTT_OFF
 707         },
 708         {       /* cs3 */
 709                 FSL_DDR_ODT_NEVER,
 710                 FSL_DDR_ODT_NEVER,
 711                 DDR2_RTT_OFF,
 712                 DDR2_RTT_OFF
 713         }
 714 };
 715 #endif
 716
 717 /*
 718  * Automatically seleect bank interleaving mode based on DIMMs
 719  * in this order: cs0_cs1_cs2_cs3, cs0_cs1, null.
 720  * This function only deal with one or two slots per controller.
 721  */
 722 static inline unsigned int auto_bank_intlv(dimm_params_t *pdimm)
 723 {
 724 #if (CONFIG_DIMM_SLOTS_PER_CTLR == 1)
 725         if (pdimm[0].n_ranks == 4)
 726                 return FSL_DDR_CS0_CS1_CS2_CS3;
 727         else if (pdimm[0].n_ranks == 2)
 728                 return FSL_DDR_CS0_CS1;
 729 #elif (CONFIG_DIMM_SLOTS_PER_CTLR == 2)
 730 #ifdef CONFIG_FSL_DDR_FIRST_SLOT_QUAD_CAPABLE
 731         if (pdimm[0].n_ranks == 4)
 732                 return FSL_DDR_CS0_CS1_CS2_CS3;
 733 #endif
 734         if (pdimm[0].n_ranks == 2) {
 735                 if (pdimm[1].n_ranks == 2)
 736                         return FSL_DDR_CS0_CS1_CS2_CS3;
 737                 else
 738                         return FSL_DDR_CS0_CS1;
 739         }
 740 #endif
 741         return 0;
 742 }
 743
 744 unsigned int populate_memctl_options(const common_timing_params_t *common_dimm,
 745                         memctl_options_t *popts,
 746                         dimm_params_t *pdimm,
 747                         unsigned int ctrl_num)
 748 {
 749         unsigned int i;
 750         char buf[HWCONFIG_BUFFER_SIZE];
 751 #if defined(CONFIG_SYS_FSL_DDR3) || \
 752         defined(CONFIG_SYS_FSL_DDR2) || \
 753         defined(CONFIG_SYS_FSL_DDR4)
 754         const struct dynamic_odt *pdodt = odt_unknown;
 755 #endif
 756 #if (CONFIG_FSL_SDRAM_TYPE != SDRAM_TYPE_DDR4)
 757         ulong ddr_freq;
 758 #endif
 759
 760         /*
 761          * Extract hwconfig from environment since we have not properly setup
 762          * the environment but need it for ddr config params
 763          */
 764         if (env_get_f("hwconfig", buf, sizeof(buf)) < 0)
 765                 buf[0] = '\0';
 766
 767 #if defined(CONFIG_SYS_FSL_DDR3) || \
 768         defined(CONFIG_SYS_FSL_DDR2) || \
 769         defined(CONFIG_SYS_FSL_DDR4)
 770         /* Chip select options. */
 771 #if (CONFIG_DIMM_SLOTS_PER_CTLR == 1)
 772         switch (pdimm[0].n_ranks) {
 773         case 1:
 774                 pdodt = single_S;
 775                 break;
 776         case 2:
 777                 pdodt = single_D;
 778                 break;
 779         case 4:
 780                 pdodt = single_Q;
 781                 break;
 782         }
 783 #elif (CONFIG_DIMM_SLOTS_PER_CTLR == 2)
 784         switch (pdimm[0].n_ranks) {
 785 #ifdef CONFIG_FSL_DDR_FIRST_SLOT_QUAD_CAPABLE
 786         case 4:
 787                 pdodt = single_Q;
 788                 if (pdimm[1].n_ranks)
 789                         printf("Error: Quad- and Dual-rank DIMMs cannot be used together\n");
 790                 break;
 791 #endif
 792         case 2:
 793                 switch (pdimm[1].n_ranks) {
 794                 case 2:
 795                         pdodt = dual_DD;
 796                         break;
 797                 case 1:
 798                         pdodt = dual_DS;
 799                         break;
 800                 case 0:
 801                         pdodt = dual_D0;
 802                         break;
 803                 }
 804                 break;
 805         case 1:
 806                 switch (pdimm[1].n_ranks) {
 807                 case 2:
 808                         pdodt = dual_SD;
 809                         break;
 810                 case 1:
 811                         pdodt = dual_SS;
 812                         break;
 813                 case 0:
 814                         pdodt = dual_S0;
 815                         break;
 816                 }
 817                 break;
 818         case 0:
 819                 switch (pdimm[1].n_ranks) {
 820                 case 2:
 821                         pdodt = dual_0D;
 822                         break;
 823                 case 1:
 824                         pdodt = dual_0S;
 825                         break;
 826                 }
 827                 break;
 828         }
 829 #endif  /* CONFIG_DIMM_SLOTS_PER_CTLR */
 830 #endif  /* CONFIG_SYS_FSL_DDR2, 3, 4 */
 831
 832         /* Pick chip-select local options. */
 833         for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) {
 834 #if defined(CONFIG_SYS_FSL_DDR3) || \
 835         defined(CONFIG_SYS_FSL_DDR2) || \
 836         defined(CONFIG_SYS_FSL_DDR4)
 837                 popts->cs_local_opts[i].odt_rd_cfg = pdodt[i].odt_rd_cfg;
 838                 popts->cs_local_opts[i].odt_wr_cfg = pdodt[i].odt_wr_cfg;
 839                 popts->cs_local_opts[i].odt_rtt_norm = pdodt[i].odt_rtt_norm;
 840                 popts->cs_local_opts[i].odt_rtt_wr = pdodt[i].odt_rtt_wr;
 841 #else
 842                 popts->cs_local_opts[i].odt_rd_cfg = FSL_DDR_ODT_NEVER;
 843                 popts->cs_local_opts[i].odt_wr_cfg = FSL_DDR_ODT_CS;
 844 #endif
 845                 popts->cs_local_opts[i].auto_precharge = 0;
 846         }
 847
 848         /* Pick interleaving mode. */
 849
 850         /*
 851          * 0 = no interleaving
 852          * 1 = interleaving between 2 controllers
 853          */
 854         popts->memctl_interleaving = 0;
 855
 856         /*
 857          * 0 = cacheline
 858          * 1 = page
 859          * 2 = (logical) bank
 860          * 3 = superbank (only if CS interleaving is enabled)
 861          */
 862         popts->memctl_interleaving_mode = 0;
 863
 864         /*
 865          * 0: cacheline: bit 30 of the 36-bit physical addr selects the memctl
 866          * 1: page:      bit to the left of the column bits selects the memctl
 867          * 2: bank:      bit to the left of the bank bits selects the memctl
 868          * 3: superbank: bit to the left of the chip select selects the memctl
 869          *
 870          * NOTE: ba_intlv (rank interleaving) is independent of memory
 871          * controller interleaving; it is only within a memory controller.
 872          * Must use superbank interleaving if rank interleaving is used and
 873          * memory controller interleaving is enabled.
 874          */
 875
 876         /*
 877          * 0 = no
 878          * 0x40 = CS0,CS1
 879          * 0x20 = CS2,CS3
 880          * 0x60 = CS0,CS1 + CS2,CS3
 881          * 0x04 = CS0,CS1,CS2,CS3
 882          */
 883         popts->ba_intlv_ctl = 0;
 884
 885         /* Memory Organization Parameters */
 886         popts->registered_dimm_en = common_dimm->all_dimms_registered;
 887
 888         /* Operational Mode Paramters */
 889
 890         /* Pick ECC modes */
 891         popts->ecc_mode = 0;              /* 0 = disabled, 1 = enabled */
 892 #ifdef CONFIG_DDR_ECC
 893         if (hwconfig_sub_f("fsl_ddr", "ecc", buf)) {
 894                 if (hwconfig_subarg_cmp_f("fsl_ddr", "ecc", "on", buf))
 895                         popts->ecc_mode = 1;
 896         } else
 897                 popts->ecc_mode = 1;
 898 #endif
 899         /* 1 = use memory controler to init data */
 900         popts->ecc_init_using_memctl = popts->ecc_mode ? 1 : 0;
 901
 902         /*
 903          * Choose DQS config
 904          * 0 for DDR1
 905          * 1 for DDR2
 906          */
 907 #if defined(CONFIG_SYS_FSL_DDR1)
 908         popts->dqs_config = 0;
 909 #elif defined(CONFIG_SYS_FSL_DDR2) || defined(CONFIG_SYS_FSL_DDR3)
 910         popts->dqs_config = 1;
 911 #endif
 912
 913         /* Choose self-refresh during sleep. */
 914         popts->self_refresh_in_sleep = 1;
 915
 916         /* Choose dynamic power management mode. */
 917         popts->dynamic_power = 0;
 918
 919         /*
 920          * check first dimm for primary sdram width
 921          * presuming all dimms are similar
 922          * 0 = 64-bit, 1 = 32-bit, 2 = 16-bit
 923          */
 924 #if defined(CONFIG_SYS_FSL_DDR1) || defined(CONFIG_SYS_FSL_DDR2)
 925         if (pdimm[0].n_ranks != 0) {
 926                 if ((pdimm[0].data_width >= 64) && \
 927                         (pdimm[0].data_width <= 72))
 928                         popts->data_bus_width = 0;
 929                 else if ((pdimm[0].data_width >= 32) && \
 930                         (pdimm[0].data_width <= 40))
 931                         popts->data_bus_width = 1;
 932                 else {
 933                         panic("Error: data width %u is invalid!\n",
 934                                 pdimm[0].data_width);
 935                 }
 936         }
 937 #else
 938         if (pdimm[0].n_ranks != 0) {
 939                 if (pdimm[0].primary_sdram_width == 64)
 940                         popts->data_bus_width = 0;
 941                 else if (pdimm[0].primary_sdram_width == 32)
 942                         popts->data_bus_width = 1;
 943                 else if (pdimm[0].primary_sdram_width == 16)
 944                         popts->data_bus_width = 2;
 945                 else {
 946                         panic("Error: primary sdram width %u is invalid!\n",
 947                                 pdimm[0].primary_sdram_width);
 948                 }
 949         }
 950 #endif
 951
 952         popts->x4_en = (pdimm[0].device_width == 4) ? 1 : 0;
 953
 954         /* Choose burst length. */
 955 #if defined(CONFIG_SYS_FSL_DDR3) || defined(CONFIG_SYS_FSL_DDR4)
 956 #if defined(CONFIG_E500MC)
 957         popts->otf_burst_chop_en = 0;   /* on-the-fly burst chop disable */
 958         popts->burst_length = DDR_BL8;  /* Fixed 8-beat burst len */
 959 #else
 960         if ((popts->data_bus_width == 1) || (popts->data_bus_width == 2)) {
 961                 /* 32-bit or 16-bit bus */
 962                 popts->otf_burst_chop_en = 0;
 963                 popts->burst_length = DDR_BL8;
 964         } else {
 965                 popts->otf_burst_chop_en = 1;   /* on-the-fly burst chop */
 966                 popts->burst_length = DDR_OTF;  /* on-the-fly BC4 and BL8 */
 967         }
 968 #endif
 969 #else
 970         popts->burst_length = DDR_BL4;  /* has to be 4 for DDR2 */
 971 #endif
 972
 973         /* Choose ddr controller address mirror mode */
 974 #if defined(CONFIG_SYS_FSL_DDR3) || defined(CONFIG_SYS_FSL_DDR4)
 975         for (i = 0; i < CONFIG_DIMM_SLOTS_PER_CTLR; i++) {
 976                 if (pdimm[i].n_ranks) {
 977                         popts->mirrored_dimm = pdimm[i].mirrored_dimm;
 978                         break;
 979                 }
 980         }
 981 #endif
 982
 983         /* Global Timing Parameters. */
 984         debug("mclk_ps = %u ps\n", get_memory_clk_period_ps(ctrl_num));
 985
 986         /* Pick a caslat override. */
 987         popts->cas_latency_override = 0;
 988         popts->cas_latency_override_value = 3;
 989         if (popts->cas_latency_override) {
 990                 debug("using caslat override value = %u\n",
 991                        popts->cas_latency_override_value);
 992         }
 993
 994         /* Decide whether to use the computed derated latency */
 995         popts->use_derated_caslat = 0;
 996
 997         /* Choose an additive latency. */
 998         popts->additive_latency_override = 0;
 999         popts->additive_latency_override_value = 3;
1000         if (popts->additive_latency_override) {
1001                 debug("using additive latency override value = %u\n",
1002                        popts->additive_latency_override_value);
1003         }
1004
1005         /*
1006          * 2T_EN setting
1007          *
1008          * Factors to consider for 2T_EN:
1009          *      - number of DIMMs installed
1010          *      - number of components, number of active ranks
1011          *      - how much time you want to spend playing around
1012          */
1013         popts->twot_en = 0;
1014         popts->threet_en = 0;
1015
1016         /* for RDIMM and DDR4 UDIMM/discrete memory, address parity enable */
1017         if (popts->registered_dimm_en)
1018                 popts->ap_en = 1; /* 0 = disable,  1 = enable */
1019         else
1020                 popts->ap_en = 0; /* disabled for DDR4 UDIMM/discrete default */
1021
1022         if (hwconfig_sub_f("fsl_ddr", "parity", buf)) {
1023                 if (hwconfig_subarg_cmp_f("fsl_ddr", "parity", "on", buf)) {
1024                         if (popts->registered_dimm_en ||
1025                             (CONFIG_FSL_SDRAM_TYPE == SDRAM_TYPE_DDR4))
1026                                 popts->ap_en = 1;
1027                 }
1028         }
1029
1030         /*
1031          * BSTTOPRE precharge interval
1032          *
1033          * Set this to 0 for global auto precharge
1034          * The value of 0x100 has been used for DDR1, DDR2, DDR3.
1035          * It is not wrong. Any value should be OK. The performance depends on
1036          * applications. There is no one good value for all. One way to set
1037          * is to use 1/4 of refint value.
1038          */
1039         popts->bstopre = picos_to_mclk(ctrl_num, common_dimm->refresh_rate_ps)
1040                          >> 2;
1041
1042         /*
1043          * Window for four activates -- tFAW
1044          *
1045          * FIXME: UM: applies only to DDR2/DDR3 with eight logical banks only
1046          * FIXME: varies depending upon number of column addresses or data
1047          * FIXME: width, was considering looking at pdimm->primary_sdram_width
1048          */
1049 #if defined(CONFIG_SYS_FSL_DDR1)
1050         popts->tfaw_window_four_activates_ps = mclk_to_picos(ctrl_num, 1);
1051
1052 #elif defined(CONFIG_SYS_FSL_DDR2)
1053         /*
1054          * x4/x8;  some datasheets have 35000
1055          * x16 wide columns only?  Use 50000?
1056          */
1057         popts->tfaw_window_four_activates_ps = 37500;
1058
1059 #else
1060         popts->tfaw_window_four_activates_ps = pdimm[0].tfaw_ps;
1061 #endif
1062         popts->zq_en = 0;
1063         popts->wrlvl_en = 0;
1064 #if defined(CONFIG_SYS_FSL_DDR3) || defined(CONFIG_SYS_FSL_DDR4)
1065         /*
1066          * due to ddr3 dimm is fly-by topology
1067          * we suggest to enable write leveling to
1068          * meet the tQDSS under different loading.
1069          */
1070         popts->wrlvl_en = 1;
1071         popts->zq_en = 1;
1072         popts->wrlvl_override = 0;
1073 #endif
1074
1075         /*
1076          * Check interleaving configuration from environment.
1077          * Please refer to doc/README.fsl-ddr for the detail.
1078          *
1079          * If memory controller interleaving is enabled, then the data
1080          * bus widths must be programmed identically for all memory controllers.
1081          *
1082          * Attempt to set all controllers to the same chip select
1083          * interleaving mode. It will do a best effort to get the
1084          * requested ranks interleaved together such that the result
1085          * should be a subset of the requested configuration.
1086          *
1087          * if CONFIG_SYS_FSL_DDR_INTLV_256B is defined, mandatory interleaving
1088          * with 256 Byte is enabled.
1089          */
1090 #if (CONFIG_SYS_NUM_DDR_CTLRS > 1)
1091         if (!hwconfig_sub_f("fsl_ddr", "ctlr_intlv", buf))
1092 #ifdef CONFIG_SYS_FSL_DDR_INTLV_256B
1093                 ;
1094 #else
1095                 goto done;
1096 #endif
1097         if (pdimm[0].n_ranks == 0) {
1098                 printf("There is no rank on CS0 for controller %d.\n", ctrl_num);
1099                 popts->memctl_interleaving = 0;
1100                 goto done;
1101         }
1102         popts->memctl_interleaving = 1;
1103 #ifdef CONFIG_SYS_FSL_DDR_INTLV_256B
1104         popts->memctl_interleaving_mode = FSL_DDR_256B_INTERLEAVING;
1105         popts->memctl_interleaving = 1;
1106         debug("256 Byte interleaving\n");
1107 #else
1108         /*
1109          * test null first. if CONFIG_HWCONFIG is not defined
1110          * hwconfig_arg_cmp returns non-zero
1111          */
1112         if (hwconfig_subarg_cmp_f("fsl_ddr", "ctlr_intlv",
1113                                     "null", buf)) {
1114                 popts->memctl_interleaving = 0;
1115                 debug("memory controller interleaving disabled.\n");
1116         } else if (hwconfig_subarg_cmp_f("fsl_ddr",
1117                                         "ctlr_intlv",
1118                                         "cacheline", buf)) {
1119                 popts->memctl_interleaving_mode =
1120                         ((CONFIG_SYS_NUM_DDR_CTLRS == 3) && ctrl_num == 2) ?
1121                         0 : FSL_DDR_CACHE_LINE_INTERLEAVING;
1122                 popts->memctl_interleaving =
1123                         ((CONFIG_SYS_NUM_DDR_CTLRS == 3) && ctrl_num == 2) ?
1124                         0 : 1;
1125         } else if (hwconfig_subarg_cmp_f("fsl_ddr",
1126                                         "ctlr_intlv",
1127                                         "page", buf)) {
1128                 popts->memctl_interleaving_mode =
1129                         ((CONFIG_SYS_NUM_DDR_CTLRS == 3) && ctrl_num == 2) ?
1130                         0 : FSL_DDR_PAGE_INTERLEAVING;
1131                 popts->memctl_interleaving =
1132                         ((CONFIG_SYS_NUM_DDR_CTLRS == 3) && ctrl_num == 2) ?
1133                         0 : 1;
1134         } else if (hwconfig_subarg_cmp_f("fsl_ddr",
1135                                         "ctlr_intlv",
1136                                         "bank", buf)) {
1137                 popts->memctl_interleaving_mode =
1138                         ((CONFIG_SYS_NUM_DDR_CTLRS == 3) && ctrl_num == 2) ?
1139                         0 : FSL_DDR_BANK_INTERLEAVING;
1140                 popts->memctl_interleaving =
1141                         ((CONFIG_SYS_NUM_DDR_CTLRS == 3) && ctrl_num == 2) ?
1142                         0 : 1;
1143         } else if (hwconfig_subarg_cmp_f("fsl_ddr",
1144                                         "ctlr_intlv",
1145                                         "superbank", buf)) {
1146                 popts->memctl_interleaving_mode =
1147                         ((CONFIG_SYS_NUM_DDR_CTLRS == 3) && ctrl_num == 2) ?
1148                         0 : FSL_DDR_SUPERBANK_INTERLEAVING;
1149                 popts->memctl_interleaving =
1150                         ((CONFIG_SYS_NUM_DDR_CTLRS == 3) && ctrl_num == 2) ?
1151                         0 : 1;
1152 #if (CONFIG_SYS_NUM_DDR_CTLRS == 3)
1153         } else if (hwconfig_subarg_cmp_f("fsl_ddr",
1154                                         "ctlr_intlv",
1155                                         "3way_1KB", buf)) {
1156                 popts->memctl_interleaving_mode =
1157                         FSL_DDR_3WAY_1KB_INTERLEAVING;
1158         } else if (hwconfig_subarg_cmp_f("fsl_ddr",
1159                                         "ctlr_intlv",
1160                                         "3way_4KB", buf)) {
1161                 popts->memctl_interleaving_mode =
1162                         FSL_DDR_3WAY_4KB_INTERLEAVING;
1163         } else if (hwconfig_subarg_cmp_f("fsl_ddr",
1164                                         "ctlr_intlv",
1165                                         "3way_8KB", buf)) {
1166                 popts->memctl_interleaving_mode =
1167                         FSL_DDR_3WAY_8KB_INTERLEAVING;
1168 #elif (CONFIG_SYS_NUM_DDR_CTLRS == 4)
1169         } else if (hwconfig_subarg_cmp_f("fsl_ddr",
1170                                         "ctlr_intlv",
1171                                         "4way_1KB", buf)) {
1172                 popts->memctl_interleaving_mode =
1173                         FSL_DDR_4WAY_1KB_INTERLEAVING;
1174         } else if (hwconfig_subarg_cmp_f("fsl_ddr",
1175                                         "ctlr_intlv",
1176                                         "4way_4KB", buf)) {
1177                 popts->memctl_interleaving_mode =
1178                         FSL_DDR_4WAY_4KB_INTERLEAVING;
1179         } else if (hwconfig_subarg_cmp_f("fsl_ddr",
1180                                         "ctlr_intlv",
1181                                         "4way_8KB", buf)) {
1182                 popts->memctl_interleaving_mode =
1183                         FSL_DDR_4WAY_8KB_INTERLEAVING;
1184 #endif
1185         } else {
1186                 popts->memctl_interleaving = 0;
1187                 printf("hwconfig has unrecognized parameter for ctlr_intlv.\n");
1188         }
1189 #endif  /* CONFIG_SYS_FSL_DDR_INTLV_256B */
1190 done:
1191 #endif /* CONFIG_SYS_NUM_DDR_CTLRS > 1 */
1192         if ((hwconfig_sub_f("fsl_ddr", "bank_intlv", buf)) &&
1193                 (CONFIG_CHIP_SELECTS_PER_CTRL > 1)) {
1194                 /* test null first. if CONFIG_HWCONFIG is not defined,
1195                  * hwconfig_subarg_cmp_f returns non-zero */
1196                 if (hwconfig_subarg_cmp_f("fsl_ddr", "bank_intlv",
1197                                             "null", buf))
1198                         debug("bank interleaving disabled.\n");
1199                 else if (hwconfig_subarg_cmp_f("fsl_ddr", "bank_intlv",
1200                                                  "cs0_cs1", buf))
1201                         popts->ba_intlv_ctl = FSL_DDR_CS0_CS1;
1202                 else if (hwconfig_subarg_cmp_f("fsl_ddr", "bank_intlv",
1203                                                  "cs2_cs3", buf))
1204                         popts->ba_intlv_ctl = FSL_DDR_CS2_CS3;
1205                 else if (hwconfig_subarg_cmp_f("fsl_ddr", "bank_intlv",
1206                                                  "cs0_cs1_and_cs2_cs3", buf))
1207                         popts->ba_intlv_ctl = FSL_DDR_CS0_CS1_AND_CS2_CS3;
1208                 else if (hwconfig_subarg_cmp_f("fsl_ddr", "bank_intlv",
1209                                                  "cs0_cs1_cs2_cs3", buf))
1210                         popts->ba_intlv_ctl = FSL_DDR_CS0_CS1_CS2_CS3;
1211                 else if (hwconfig_subarg_cmp_f("fsl_ddr", "bank_intlv",
1212                                                 "auto", buf))
1213                         popts->ba_intlv_ctl = auto_bank_intlv(pdimm);
1214                 else
1215                         printf("hwconfig has unrecognized parameter for bank_intlv.\n");
1216                 switch (popts->ba_intlv_ctl & FSL_DDR_CS0_CS1_CS2_CS3) {
1217                 case FSL_DDR_CS0_CS1_CS2_CS3:
1218 #if (CONFIG_DIMM_SLOTS_PER_CTLR == 1)
1219                         if (pdimm[0].n_ranks < 4) {
1220                                 popts->ba_intlv_ctl = 0;
1221                                 printf("Not enough bank(chip-select) for "
1222                                         "CS0+CS1+CS2+CS3 on controller %d, "
1223                                         "interleaving disabled!\n", ctrl_num);
1224                         }
1225 #elif (CONFIG_DIMM_SLOTS_PER_CTLR == 2)
1226 #ifdef CONFIG_FSL_DDR_FIRST_SLOT_QUAD_CAPABLE
1227                         if (pdimm[0].n_ranks == 4)
1228                                 break;
1229 #endif
1230                         if ((pdimm[0].n_ranks < 2) && (pdimm[1].n_ranks < 2)) {
1231                                 popts->ba_intlv_ctl = 0;
1232                                 printf("Not enough bank(chip-select) for "
1233                                         "CS0+CS1+CS2+CS3 on controller %d, "
1234                                         "interleaving disabled!\n", ctrl_num);
1235                         }
1236                         if (pdimm[0].capacity != pdimm[1].capacity) {
1237                                 popts->ba_intlv_ctl = 0;
1238                                 printf("Not identical DIMM size for "
1239                                         "CS0+CS1+CS2+CS3 on controller %d, "
1240                                         "interleaving disabled!\n", ctrl_num);
1241                         }
1242 #endif
1243                         break;
1244                 case FSL_DDR_CS0_CS1:
1245                         if (pdimm[0].n_ranks < 2) {
1246                                 popts->ba_intlv_ctl = 0;
1247                                 printf("Not enough bank(chip-select) for "
1248                                         "CS0+CS1 on controller %d, "
1249                                         "interleaving disabled!\n", ctrl_num);
1250                         }
1251                         break;
1252                 case FSL_DDR_CS2_CS3:
1253 #if (CONFIG_DIMM_SLOTS_PER_CTLR == 1)
1254                         if (pdimm[0].n_ranks < 4) {
1255                                 popts->ba_intlv_ctl = 0;
1256                                 printf("Not enough bank(chip-select) for CS2+CS3 "
1257                                         "on controller %d, interleaving disabled!\n", ctrl_num);
1258                         }
1259 #elif (CONFIG_DIMM_SLOTS_PER_CTLR == 2)
1260                         if (pdimm[1].n_ranks < 2) {
1261                                 popts->ba_intlv_ctl = 0;
1262                                 printf("Not enough bank(chip-select) for CS2+CS3 "
1263                                         "on controller %d, interleaving disabled!\n", ctrl_num);
1264                         }
1265 #endif
1266                         break;
1267                 case FSL_DDR_CS0_CS1_AND_CS2_CS3:
1268 #if (CONFIG_DIMM_SLOTS_PER_CTLR == 1)
1269                         if (pdimm[0].n_ranks < 4) {
1270                                 popts->ba_intlv_ctl = 0;
1271                                 printf("Not enough bank(CS) for CS0+CS1 and "
1272                                         "CS2+CS3 on controller %d, "
1273                                         "interleaving disabled!\n", ctrl_num);
1274                         }
1275 #elif (CONFIG_DIMM_SLOTS_PER_CTLR == 2)
1276                         if ((pdimm[0].n_ranks < 2) || (pdimm[1].n_ranks < 2)) {
1277                                 popts->ba_intlv_ctl = 0;
1278                                 printf("Not enough bank(CS) for CS0+CS1 and "
1279                                         "CS2+CS3 on controller %d, "
1280                                         "interleaving disabled!\n", ctrl_num);
1281                         }
1282 #endif
1283                         break;
1284                 default:
1285                         popts->ba_intlv_ctl = 0;
1286                         break;
1287                 }
1288         }
1289
1290         if (hwconfig_sub_f("fsl_ddr", "addr_hash", buf)) {
1291                 if (hwconfig_subarg_cmp_f("fsl_ddr", "addr_hash", "null", buf))
1292                         popts->addr_hash = 0;
1293                 else if (hwconfig_subarg_cmp_f("fsl_ddr", "addr_hash",
1294                                                "true", buf))
1295                         popts->addr_hash = 1;
1296         }
1297
1298         if (pdimm[0].n_ranks == 4)
1299                 popts->quad_rank_present = 1;
1300
1301         popts->package_3ds = pdimm->package_3ds;
1302
1303 #if (CONFIG_FSL_SDRAM_TYPE != SDRAM_TYPE_DDR4)
1304         ddr_freq = get_ddr_freq(ctrl_num) / 1000000;
1305         if (popts->registered_dimm_en) {
1306                 popts->rcw_override = 1;
1307                 popts->rcw_1 = 0x000a5a00;
1308                 if (ddr_freq <= 800)
1309                         popts->rcw_2 = 0x00000000;
1310                 else if (ddr_freq <= 1066)
1311                         popts->rcw_2 = 0x00100000;
1312                 else if (ddr_freq <= 1333)
1313                         popts->rcw_2 = 0x00200000;
1314                 else
1315                         popts->rcw_2 = 0x00300000;
1316         }
1317 #endif
1318
1319         fsl_ddr_board_options(popts, pdimm, ctrl_num);
1320
1321         return 0;
1322 }
1323
1324 void check_interleaving_options(fsl_ddr_info_t *pinfo)
1325 {
1326         int i, j, k, check_n_ranks, intlv_invalid = 0;
1327         unsigned int check_intlv, check_n_row_addr, check_n_col_addr;
1328         unsigned long long check_rank_density;
1329         struct dimm_params_s *dimm;
1330         int first_ctrl = pinfo->first_ctrl;
1331         int last_ctrl = first_ctrl + pinfo->num_ctrls - 1;
1332
1333         /*
1334          * Check if all controllers are configured for memory
1335          * controller interleaving. Identical dimms are recommended. At least
1336          * the size, row and col address should be checked.
1337          */
1338         j = 0;
1339         check_n_ranks = pinfo->dimm_params[first_ctrl][0].n_ranks;
1340         check_rank_density = pinfo->dimm_params[first_ctrl][0].rank_density;
1341         check_n_row_addr =  pinfo->dimm_params[first_ctrl][0].n_row_addr;
1342         check_n_col_addr = pinfo->dimm_params[first_ctrl][0].n_col_addr;
1343         check_intlv = pinfo->memctl_opts[first_ctrl].memctl_interleaving_mode;
1344         for (i = first_ctrl; i <= last_ctrl; i++) {
1345                 dimm = &pinfo->dimm_params[i][0];
1346                 if (!pinfo->memctl_opts[i].memctl_interleaving) {
1347                         continue;
1348                 } else if (((check_rank_density != dimm->rank_density) ||
1349                      (check_n_ranks != dimm->n_ranks) ||
1350                      (check_n_row_addr != dimm->n_row_addr) ||
1351                      (check_n_col_addr != dimm->n_col_addr) ||
1352                      (check_intlv !=
1353                         pinfo->memctl_opts[i].memctl_interleaving_mode))){
1354                         intlv_invalid = 1;
1355                         break;
1356                 } else {
1357                         j++;
1358                 }
1359
1360         }
1361         if (intlv_invalid) {
1362                 for (i = first_ctrl; i <= last_ctrl; i++)
1363                         pinfo->memctl_opts[i].memctl_interleaving = 0;
1364                 printf("Not all DIMMs are identical. "
1365                         "Memory controller interleaving disabled.\n");
1366         } else {
1367                 switch (check_intlv) {
1368                 case FSL_DDR_256B_INTERLEAVING:
1369                 case FSL_DDR_CACHE_LINE_INTERLEAVING:
1370                 case FSL_DDR_PAGE_INTERLEAVING:
1371                 case FSL_DDR_BANK_INTERLEAVING:
1372                 case FSL_DDR_SUPERBANK_INTERLEAVING:
1373 #if (3 == CONFIG_SYS_NUM_DDR_CTLRS)
1374                                 k = 2;
1375 #else
1376                                 k = CONFIG_SYS_NUM_DDR_CTLRS;
1377 #endif
1378                         break;
1379                 case FSL_DDR_3WAY_1KB_INTERLEAVING:
1380                 case FSL_DDR_3WAY_4KB_INTERLEAVING:
1381                 case FSL_DDR_3WAY_8KB_INTERLEAVING:
1382                 case FSL_DDR_4WAY_1KB_INTERLEAVING:
1383                 case FSL_DDR_4WAY_4KB_INTERLEAVING:
1384                 case FSL_DDR_4WAY_8KB_INTERLEAVING:
1385                 default:
1386                         k = CONFIG_SYS_NUM_DDR_CTLRS;
1387                         break;
1388                 }
1389                 debug("%d of %d controllers are interleaving.\n", j, k);
1390                 if (j && (j != k)) {
1391                         for (i = first_ctrl; i <= last_ctrl; i++)
1392                                 pinfo->memctl_opts[i].memctl_interleaving = 0;
1393                         if ((last_ctrl - first_ctrl) > 1)
1394                                 puts("Not all controllers have compatible interleaving mode. All disabled.\n");
1395                 }
1396         }
1397         debug("Checking interleaving options completed\n");
1398 }
1399
1400 int fsl_use_spd(void)
1401 {
1402         int use_spd = 0;
1403
1404 #ifdef CONFIG_DDR_SPD
1405         char buf[HWCONFIG_BUFFER_SIZE];
1406
1407         /*
1408          * Extract hwconfig from environment since we have not properly setup
1409          * the environment but need it for ddr config params
1410          */
1411         if (env_get_f("hwconfig", buf, sizeof(buf)) < 0)
1412                 buf[0] = '\0';
1413
1414         /* if hwconfig is not enabled, or "sdram" is not defined, use spd */
1415         if (hwconfig_sub_f("fsl_ddr", "sdram", buf)) {
1416                 if (hwconfig_subarg_cmp_f("fsl_ddr", "sdram", "spd", buf))
1417                         use_spd = 1;
1418                 else if (hwconfig_subarg_cmp_f("fsl_ddr", "sdram",
1419                                                "fixed", buf))
1420                         use_spd = 0;
1421                 else
1422                         use_spd = 1;
1423         } else
1424                 use_spd = 1;
1425 #endif
1426
1427         return use_spd;
1428 }