arch/arm/cpu/armv8/fsl-layerscape/cpu.c

   1 /*
   2  * Copyright 2014-2015 Freescale Semiconductor, Inc.
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #include <common.h>
   8 #include <asm/io.h>
   9 #include <linux/errno.h>
  10 #include <asm/system.h>
  11 #include <asm/armv8/mmu.h>
  12 #include <asm/io.h>
  13 #include <asm/arch/fsl_serdes.h>
  14 #include <asm/arch/soc.h>
  15 #include <asm/arch/cpu.h>
  16 #include <asm/arch/speed.h>
  17 #ifdef CONFIG_MP
  18 #include <asm/arch/mp.h>
  19 #endif
  20 #include <efi_loader.h>
  21 #include <fm_eth.h>
  22 #include <fsl-mc/fsl_mc.h>
  23 #ifdef CONFIG_FSL_ESDHC
  24 #include <fsl_esdhc.h>
  25 #endif
  26 #ifdef CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT
  27 #include <asm/armv8/sec_firmware.h>
  28 #endif
  29 #ifdef CONFIG_SYS_FSL_DDR
  30 #include <fsl_ddr.h>
  31 #endif
  32
  33 DECLARE_GLOBAL_DATA_PTR;
  34
  35 struct mm_region *mem_map = early_map;
  36
  37 void cpu_name(char *name)
  38 {
  39         struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
  40         unsigned int i, svr, ver;
  41
  42         svr = gur_in32(&gur->svr);
  43         ver = SVR_SOC_VER(svr);
  44
  45         for (i = 0; i < ARRAY_SIZE(cpu_type_list); i++)
  46                 if ((cpu_type_list[i].soc_ver & SVR_WO_E) == ver) {
  47                         strcpy(name, cpu_type_list[i].name);
  48
  49                         if (IS_E_PROCESSOR(svr))
  50                                 strcat(name, "E");
  51
  52                         sprintf(name + strlen(name), " Rev%d.%d",
  53                                 SVR_MAJ(svr), SVR_MIN(svr));
  54                         break;
  55                 }
  56
  57         if (i == ARRAY_SIZE(cpu_type_list))
  58                 strcpy(name, "unknown");
  59 }
  60
  61 #ifndef CONFIG_SYS_DCACHE_OFF
  62 /*
  63  * To start MMU before DDR is available, we create MMU table in SRAM.
  64  * The base address of SRAM is CONFIG_SYS_FSL_OCRAM_BASE. We use three
  65  * levels of translation tables here to cover 40-bit address space.
  66  * We use 4KB granule size, with 40 bits physical address, T0SZ=24
  67  * Address above EARLY_PGTABLE_SIZE (0x5000) is free for other purpose.
  68  * Note, the debug print in cache_v8.c is not usable for debugging
  69  * these early MMU tables because UART is not yet available.
  70  */
  71 static inline void early_mmu_setup(void)
  72 {
  73         unsigned int el = current_el();
  74
  75         /* global data is already setup, no allocation yet */
  76         gd->arch.tlb_addr = CONFIG_SYS_FSL_OCRAM_BASE;
  77         gd->arch.tlb_fillptr = gd->arch.tlb_addr;
  78         gd->arch.tlb_size = EARLY_PGTABLE_SIZE;
  79
  80         /* Create early page tables */
  81         setup_pgtables();
  82
  83         /* point TTBR to the new table */
  84         set_ttbr_tcr_mair(el, gd->arch.tlb_addr,
  85                           get_tcr(el, NULL, NULL) &
  86                           ~(TCR_ORGN_MASK | TCR_IRGN_MASK),
  87                           MEMORY_ATTRIBUTES);
  88
  89         set_sctlr(get_sctlr() | CR_M);
  90 }
  91
  92 static void fix_pcie_mmu_map(void)
  93 {
  94 #ifdef CONFIG_LS2080A
  95         unsigned int i;
  96         u32 svr, ver;
  97         struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
  98
  99         svr = gur_in32(&gur->svr);
 100         ver = SVR_SOC_VER(svr);
 101
 102         /* Fix PCIE base and size for LS2088A */
 103         if ((ver == SVR_LS2088A) || (ver == SVR_LS2084A) ||
 104             (ver == SVR_LS2048A) || (ver == SVR_LS2044A)) {
 105                 for (i = 0; i < ARRAY_SIZE(final_map); i++) {
 106                         switch (final_map[i].phys) {
 107                         case CONFIG_SYS_PCIE1_PHYS_ADDR:
 108                                 final_map[i].phys = 0x2000000000ULL;
 109                                 final_map[i].virt = 0x2000000000ULL;
 110                                 final_map[i].size = 0x800000000ULL;
 111                                 break;
 112                         case CONFIG_SYS_PCIE2_PHYS_ADDR:
 113                                 final_map[i].phys = 0x2800000000ULL;
 114                                 final_map[i].virt = 0x2800000000ULL;
 115                                 final_map[i].size = 0x800000000ULL;
 116                                 break;
 117                         case CONFIG_SYS_PCIE3_PHYS_ADDR:
 118                                 final_map[i].phys = 0x3000000000ULL;
 119                                 final_map[i].virt = 0x3000000000ULL;
 120                                 final_map[i].size = 0x800000000ULL;
 121                                 break;
 122                         case CONFIG_SYS_PCIE4_PHYS_ADDR:
 123                                 final_map[i].phys = 0x3800000000ULL;
 124                                 final_map[i].virt = 0x3800000000ULL;
 125                                 final_map[i].size = 0x800000000ULL;
 126                                 break;
 127                         default:
 128                                 break;
 129                         }
 130                 }
 131         }
 132 #endif
 133 }
 134
 135 /*
 136  * The final tables look similar to early tables, but different in detail.
 137  * These tables are in DRAM. Sub tables are added to enable cache for
 138  * QBMan and OCRAM.
 139  *
 140  * Put the MMU table in secure memory if gd->arch.secure_ram is valid.
 141  * OCRAM will be not used for this purpose so gd->arch.secure_ram can't be 0.
 142  */
 143 static inline void final_mmu_setup(void)
 144 {
 145         u64 tlb_addr_save = gd->arch.tlb_addr;
 146         unsigned int el = current_el();
 147         int index;
 148
 149         /* fix the final_map before filling in the block entries */
 150         fix_pcie_mmu_map();
 151
 152         mem_map = final_map;
 153
 154         /* Update mapping for DDR to actual size */
 155         for (index = 0; index < ARRAY_SIZE(final_map) - 2; index++) {
 156                 /*
 157                  * Find the entry for DDR mapping and update the address and
 158                  * size. Zero-sized mapping will be skipped when creating MMU
 159                  * table.
 160                  */
 161                 switch (final_map[index].virt) {
 162                 case CONFIG_SYS_FSL_DRAM_BASE1:
 163                         final_map[index].virt = gd->bd->bi_dram[0].start;
 164                         final_map[index].phys = gd->bd->bi_dram[0].start;
 165                         final_map[index].size = gd->bd->bi_dram[0].size;
 166                         break;
 167 #ifdef CONFIG_SYS_FSL_DRAM_BASE2
 168                 case CONFIG_SYS_FSL_DRAM_BASE2:
 169 #if (CONFIG_NR_DRAM_BANKS >= 2)
 170                         final_map[index].virt = gd->bd->bi_dram[1].start;
 171                         final_map[index].phys = gd->bd->bi_dram[1].start;
 172                         final_map[index].size = gd->bd->bi_dram[1].size;
 173 #else
 174                         final_map[index].size = 0;
 175 #endif
 176                 break;
 177 #endif
 178 #ifdef CONFIG_SYS_FSL_DRAM_BASE3
 179                 case CONFIG_SYS_FSL_DRAM_BASE3:
 180 #if (CONFIG_NR_DRAM_BANKS >= 3)
 181                         final_map[index].virt = gd->bd->bi_dram[2].start;
 182                         final_map[index].phys = gd->bd->bi_dram[2].start;
 183                         final_map[index].size = gd->bd->bi_dram[2].size;
 184 #else
 185                         final_map[index].size = 0;
 186 #endif
 187                 break;
 188 #endif
 189                 default:
 190                         break;
 191                 }
 192         }
 193
 194 #ifdef CONFIG_SYS_MEM_RESERVE_SECURE
 195         if (gd->arch.secure_ram & MEM_RESERVE_SECURE_MAINTAINED) {
 196                 if (el == 3) {
 197                         /*
 198                          * Only use gd->arch.secure_ram if the address is
 199                          * recalculated. Align to 4KB for MMU table.
 200                          */
 201                         /* put page tables in secure ram */
 202                         index = ARRAY_SIZE(final_map) - 2;
 203                         gd->arch.tlb_addr = gd->arch.secure_ram & ~0xfff;
 204                         final_map[index].virt = gd->arch.secure_ram & ~0x3;
 205                         final_map[index].phys = final_map[index].virt;
 206                         final_map[index].size = CONFIG_SYS_MEM_RESERVE_SECURE;
 207                         final_map[index].attrs = PTE_BLOCK_OUTER_SHARE;
 208                         gd->arch.secure_ram |= MEM_RESERVE_SECURE_SECURED;
 209                         tlb_addr_save = gd->arch.tlb_addr;
 210                 } else {
 211                         /* Use allocated (board_f.c) memory for TLB */
 212                         tlb_addr_save = gd->arch.tlb_allocated;
 213                         gd->arch.tlb_addr = tlb_addr_save;
 214                 }
 215         }
 216 #endif
 217
 218         /* Reset the fill ptr */
 219         gd->arch.tlb_fillptr = tlb_addr_save;
 220
 221         /* Create normal system page tables */
 222         setup_pgtables();
 223
 224         /* Create emergency page tables */
 225         gd->arch.tlb_addr = gd->arch.tlb_fillptr;
 226         gd->arch.tlb_emerg = gd->arch.tlb_addr;
 227         setup_pgtables();
 228         gd->arch.tlb_addr = tlb_addr_save;
 229
 230         /* Disable cache and MMU */
 231         dcache_disable();       /* TLBs are invalidated */
 232         invalidate_icache_all();
 233
 234         /* point TTBR to the new table */
 235         set_ttbr_tcr_mair(el, gd->arch.tlb_addr, get_tcr(el, NULL, NULL),
 236                           MEMORY_ATTRIBUTES);
 237
 238         set_sctlr(get_sctlr() | CR_M);
 239 }
 240
 241 u64 get_page_table_size(void)
 242 {
 243         return 0x10000;
 244 }
 245
 246 int arch_cpu_init(void)
 247 {
 248         icache_enable();
 249         __asm_invalidate_dcache_all();
 250         __asm_invalidate_tlb_all();
 251         early_mmu_setup();
 252         set_sctlr(get_sctlr() | CR_C);
 253         return 0;
 254 }
 255
 256 void mmu_setup(void)
 257 {
 258         final_mmu_setup();
 259 }
 260
 261 /*
 262  * This function is called from common/board_r.c.
 263  * It recreates MMU table in main memory.
 264  */
 265 void enable_caches(void)
 266 {
 267         mmu_setup();
 268         __asm_invalidate_tlb_all();
 269         icache_enable();
 270         dcache_enable();
 271 }
 272 #endif
 273
 274 u32 initiator_type(u32 cluster, int init_id)
 275 {
 276         struct ccsr_gur *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
 277         u32 idx = (cluster >> (init_id * 8)) & TP_CLUSTER_INIT_MASK;
 278         u32 type = 0;
 279
 280         type = gur_in32(&gur->tp_ityp[idx]);
 281         if (type & TP_ITYP_AV)
 282                 return type;
 283
 284         return 0;
 285 }
 286
 287 u32 cpu_pos_mask(void)
 288 {
 289         struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
 290         int i = 0;
 291         u32 cluster, type, mask = 0;
 292
 293         do {
 294                 int j;
 295
 296                 cluster = gur_in32(&gur->tp_cluster[i].lower);
 297                 for (j = 0; j < TP_INIT_PER_CLUSTER; j++) {
 298                         type = initiator_type(cluster, j);
 299                         if (type && (TP_ITYP_TYPE(type) == TP_ITYP_TYPE_ARM))
 300                                 mask |= 1 << (i * TP_INIT_PER_CLUSTER + j);
 301                 }
 302                 i++;
 303         } while ((cluster & TP_CLUSTER_EOC) == 0x0);
 304
 305         return mask;
 306 }
 307
 308 u32 cpu_mask(void)
 309 {
 310         struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
 311         int i = 0, count = 0;
 312         u32 cluster, type, mask = 0;
 313
 314         do {
 315                 int j;
 316
 317                 cluster = gur_in32(&gur->tp_cluster[i].lower);
 318                 for (j = 0; j < TP_INIT_PER_CLUSTER; j++) {
 319                         type = initiator_type(cluster, j);
 320                         if (type) {
 321                                 if (TP_ITYP_TYPE(type) == TP_ITYP_TYPE_ARM)
 322                                         mask |= 1 << count;
 323                                 count++;
 324                         }
 325                 }
 326                 i++;
 327         } while ((cluster & TP_CLUSTER_EOC) == 0x0);
 328
 329         return mask;
 330 }
 331
 332 /*
 333  * Return the number of cores on this SOC.
 334  */
 335 int cpu_numcores(void)
 336 {
 337         return hweight32(cpu_mask());
 338 }
 339
 340 int fsl_qoriq_core_to_cluster(unsigned int core)
 341 {
 342         struct ccsr_gur __iomem *gur =
 343                 (void __iomem *)(CONFIG_SYS_FSL_GUTS_ADDR);
 344         int i = 0, count = 0;
 345         u32 cluster;
 346
 347         do {
 348                 int j;
 349
 350                 cluster = gur_in32(&gur->tp_cluster[i].lower);
 351                 for (j = 0; j < TP_INIT_PER_CLUSTER; j++) {
 352                         if (initiator_type(cluster, j)) {
 353                                 if (count == core)
 354                                         return i;
 355                                 count++;
 356                         }
 357                 }
 358                 i++;
 359         } while ((cluster & TP_CLUSTER_EOC) == 0x0);
 360
 361         return -1;      /* cannot identify the cluster */
 362 }
 363
 364 u32 fsl_qoriq_core_to_type(unsigned int core)
 365 {
 366         struct ccsr_gur __iomem *gur =
 367                 (void __iomem *)(CONFIG_SYS_FSL_GUTS_ADDR);
 368         int i = 0, count = 0;
 369         u32 cluster, type;
 370
 371         do {
 372                 int j;
 373
 374                 cluster = gur_in32(&gur->tp_cluster[i].lower);
 375                 for (j = 0; j < TP_INIT_PER_CLUSTER; j++) {
 376                         type = initiator_type(cluster, j);
 377                         if (type) {
 378                                 if (count == core)
 379                                         return type;
 380                                 count++;
 381                         }
 382                 }
 383                 i++;
 384         } while ((cluster & TP_CLUSTER_EOC) == 0x0);
 385
 386         return -1;      /* cannot identify the cluster */
 387 }
 388
 389 #ifndef CONFIG_FSL_LSCH3
 390 uint get_svr(void)
 391 {
 392         struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
 393
 394         return gur_in32(&gur->svr);
 395 }
 396 #endif
 397
 398 #ifdef CONFIG_DISPLAY_CPUINFO
 399 int print_cpuinfo(void)
 400 {
 401         struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
 402         struct sys_info sysinfo;
 403         char buf[32];
 404         unsigned int i, core;
 405         u32 type, rcw, svr = gur_in32(&gur->svr);
 406
 407         puts("SoC: ");
 408
 409         cpu_name(buf);
 410         printf(" %s (0x%x)\n", buf, svr);
 411         memset((u8 *)buf, 0x00, ARRAY_SIZE(buf));
 412         get_sys_info(&sysinfo);
 413         puts("Clock Configuration:");
 414         for_each_cpu(i, core, cpu_numcores(), cpu_mask()) {
 415                 if (!(i % 3))
 416                         puts("\n       ");
 417                 type = TP_ITYP_VER(fsl_qoriq_core_to_type(core));
 418                 printf("CPU%d(%s):%-4s MHz  ", core,
 419                        type == TY_ITYP_VER_A7 ? "A7 " :
 420                        (type == TY_ITYP_VER_A53 ? "A53" :
 421                        (type == TY_ITYP_VER_A57 ? "A57" :
 422                        (type == TY_ITYP_VER_A72 ? "A72" : "   "))),
 423                        strmhz(buf, sysinfo.freq_processor[core]));
 424         }
 425         /* Display platform clock as Bus frequency. */
 426         printf("\n       Bus:      %-4s MHz  ",
 427                strmhz(buf, sysinfo.freq_systembus / CONFIG_SYS_FSL_PCLK_DIV));
 428         printf("DDR:      %-4s MT/s", strmhz(buf, sysinfo.freq_ddrbus));
 429 #ifdef CONFIG_SYS_DPAA_FMAN
 430         printf("  FMAN:     %-4s MHz", strmhz(buf, sysinfo.freq_fman[0]));
 431 #endif
 432 #ifdef CONFIG_SYS_FSL_HAS_DP_DDR
 433         if (soc_has_dp_ddr()) {
 434                 printf("     DP-DDR:   %-4s MT/s",
 435                        strmhz(buf, sysinfo.freq_ddrbus2));
 436         }
 437 #endif
 438         puts("\n");
 439
 440         /*
 441          * Display the RCW, so that no one gets confused as to what RCW
 442          * we're actually using for this boot.
 443          */
 444         puts("Reset Configuration Word (RCW):");
 445         for (i = 0; i < ARRAY_SIZE(gur->rcwsr); i++) {
 446                 rcw = gur_in32(&gur->rcwsr[i]);
 447                 if ((i % 4) == 0)
 448                         printf("\n       %08x:", i * 4);
 449                 printf(" %08x", rcw);
 450         }
 451         puts("\n");
 452
 453         return 0;
 454 }
 455 #endif
 456
 457 #ifdef CONFIG_FSL_ESDHC
 458 int cpu_mmc_init(bd_t *bis)
 459 {
 460         return fsl_esdhc_mmc_init(bis);
 461 }
 462 #endif
 463
 464 int cpu_eth_init(bd_t *bis)
 465 {
 466         int error = 0;
 467
 468 #ifdef CONFIG_FSL_MC_ENET
 469         error = fsl_mc_ldpaa_init(bis);
 470 #endif
 471 #ifdef CONFIG_FMAN_ENET
 472         fm_standard_init(bis);
 473 #endif
 474         return error;
 475 }
 476
 477 int arch_early_init_r(void)
 478 {
 479 #ifdef CONFIG_MP
 480         int rv = 1;
 481         u32 psci_ver = 0xffffffff;
 482 #endif
 483
 484 #ifdef CONFIG_SYS_FSL_ERRATUM_A009635
 485         u32 svr_dev_id;
 486         /*
 487          * erratum A009635 is valid only for LS2080A SoC and
 488          * its personalitiesi
 489          */
 490         svr_dev_id = get_svr() >> 16;
 491         if (svr_dev_id == SVR_DEV_LS2080A)
 492                 erratum_a009635();
 493 #endif
 494 #if defined(CONFIG_SYS_FSL_ERRATUM_A009942) && defined(CONFIG_SYS_FSL_DDR)
 495         erratum_a009942_check_cpo();
 496 #endif
 497 #ifdef CONFIG_MP
 498 #if defined(CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT) && \
 499         defined(CONFIG_SEC_FIRMWARE_ARMV8_PSCI)
 500         /* Check the psci version to determine if the psci is supported */
 501         psci_ver = sec_firmware_support_psci_version();
 502 #endif
 503         if (psci_ver == 0xffffffff) {
 504                 rv = fsl_layerscape_wake_seconday_cores();
 505                 if (rv)
 506                         printf("Did not wake secondary cores\n");
 507         }
 508 #endif
 509
 510 #ifdef CONFIG_SYS_HAS_SERDES
 511         fsl_serdes_init();
 512 #endif
 513 #ifdef CONFIG_FMAN_ENET
 514         fman_enet_init();
 515 #endif
 516         return 0;
 517 }
 518
 519 int timer_init(void)
 520 {
 521         u32 __iomem *cntcr = (u32 *)CONFIG_SYS_FSL_TIMER_ADDR;
 522 #ifdef CONFIG_FSL_LSCH3
 523         u32 __iomem *cltbenr = (u32 *)CONFIG_SYS_FSL_PMU_CLTBENR;
 524 #endif
 525 #ifdef CONFIG_LS2080A
 526         u32 __iomem *pctbenr = (u32 *)FSL_PMU_PCTBENR_OFFSET;
 527         u32 svr_dev_id;
 528 #endif
 529 #ifdef COUNTER_FREQUENCY_REAL
 530         unsigned long cntfrq = COUNTER_FREQUENCY_REAL;
 531
 532         /* Update with accurate clock frequency */
 533         asm volatile("msr cntfrq_el0, %0" : : "r" (cntfrq) : "memory");
 534 #endif
 535
 536 #ifdef CONFIG_FSL_LSCH3
 537         /* Enable timebase for all clusters.
 538          * It is safe to do so even some clusters are not enabled.
 539          */
 540         out_le32(cltbenr, 0xf);
 541 #endif
 542
 543 #ifdef CONFIG_LS2080A
 544         /*
 545          * In certain Layerscape SoCs, the clock for each core's
 546          * has an enable bit in the PMU Physical Core Time Base Enable
 547          * Register (PCTBENR), which allows the watchdog to operate.
 548          */
 549         setbits_le32(pctbenr, 0xff);
 550         /*
 551          * For LS2080A SoC and its personalities, timer controller
 552          * offset is different
 553          */
 554         svr_dev_id = get_svr() >> 16;
 555         if (svr_dev_id == SVR_DEV_LS2080A)
 556                 cntcr = (u32 *)SYS_FSL_LS2080A_LS2085A_TIMER_ADDR;
 557
 558 #endif
 559
 560         /* Enable clock for timer
 561          * This is a global setting.
 562          */
 563         out_le32(cntcr, 0x1);
 564
 565         return 0;
 566 }
 567
 568 __efi_runtime_data u32 __iomem *rstcr = (u32 *)CONFIG_SYS_FSL_RST_ADDR;
 569
 570 void __efi_runtime reset_cpu(ulong addr)
 571 {
 572         u32 val;
 573
 574         /* Raise RESET_REQ_B */
 575         val = scfg_in32(rstcr);
 576         val |= 0x02;
 577         scfg_out32(rstcr, val);
 578 }
 579
 580 #ifdef CONFIG_EFI_LOADER
 581
 582 void __efi_runtime EFIAPI efi_reset_system(
 583                        enum efi_reset_type reset_type,
 584                        efi_status_t reset_status,
 585                        unsigned long data_size, void *reset_data)
 586 {
 587         switch (reset_type) {
 588         case EFI_RESET_COLD:
 589         case EFI_RESET_WARM:
 590                 reset_cpu(0);
 591                 break;
 592         case EFI_RESET_SHUTDOWN:
 593                 /* Nothing we can do */
 594                 break;
 595         }
 596
 597         while (1) { }
 598 }
 599
 600 void efi_reset_system_init(void)
 601 {
 602        efi_add_runtime_mmio(&rstcr, sizeof(*rstcr));
 603 }
 604
 605 #endif
 606
 607 phys_size_t board_reserve_ram_top(phys_size_t ram_size)
 608 {
 609         phys_size_t ram_top = ram_size;
 610
 611 #ifdef CONFIG_FSL_MC_ENET
 612         /* The start address of MC reserved memory needs to be aligned. */
 613         ram_top -= mc_get_dram_block_size();
 614         ram_top &= ~(CONFIG_SYS_MC_RSV_MEM_ALIGN - 1);
 615 #endif
 616
 617         return ram_size - ram_top;
 618 }
 619
 620 phys_size_t get_effective_memsize(void)
 621 {
 622         phys_size_t ea_size, rem = 0;
 623
 624         /*
 625          * For ARMv8 SoCs, DDR memory is split into two or three regions. The
 626          * first region is 2GB space at 0x8000_0000. If the memory extends to
 627          * the second region (or the third region if applicable), the secure
 628          * memory and Management Complex (MC) memory should be put into the
 629          * highest region, i.e. the end of DDR memory. CONFIG_MAX_MEM_MAPPED
 630          * is set to the size of first region so U-Boot doesn't relocate itself
 631          * into higher address. Should DDR be configured to skip the first
 632          * region, this function needs to be adjusted.
 633          */
 634         if (gd->ram_size > CONFIG_MAX_MEM_MAPPED) {
 635                 ea_size = CONFIG_MAX_MEM_MAPPED;
 636                 rem = gd->ram_size - ea_size;
 637         } else {
 638                 ea_size = gd->ram_size;
 639         }
 640
 641 #ifdef CONFIG_SYS_MEM_RESERVE_SECURE
 642         /* Check if we have enough space for secure memory */
 643         if (rem > CONFIG_SYS_MEM_RESERVE_SECURE) {
 644                 rem -= CONFIG_SYS_MEM_RESERVE_SECURE;
 645         } else {
 646                 if (ea_size > CONFIG_SYS_MEM_RESERVE_SECURE) {
 647                         ea_size -= CONFIG_SYS_MEM_RESERVE_SECURE;
 648                         rem = 0;        /* Presume MC requires more memory */
 649                 } else {
 650                         printf("Error: No enough space for secure memory.\n");
 651                 }
 652         }
 653 #endif
 654         /* Check if we have enough memory for MC */
 655         if (rem < board_reserve_ram_top(rem)) {
 656                 /* Not enough memory in high region to reserve */
 657                 if (ea_size > board_reserve_ram_top(rem))
 658                         ea_size -= board_reserve_ram_top(rem);
 659                 else
 660                         printf("Error: No enough space for reserved memory.\n");
 661         }
 662
 663         return ea_size;
 664 }
 665
 666 int dram_init_banksize(void)
 667 {
 668 #ifdef CONFIG_SYS_DP_DDR_BASE_PHY
 669         phys_size_t dp_ddr_size;
 670 #endif
 671
 672         /*
 673          * gd->ram_size has the total size of DDR memory, less reserved secure
 674          * memory. The DDR extends from low region to high region(s) presuming
 675          * no hole is created with DDR configuration. gd->arch.secure_ram tracks
 676          * the location of secure memory. gd->arch.resv_ram tracks the location
 677          * of reserved memory for Management Complex (MC).
 678          */
 679         gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
 680         if (gd->ram_size > CONFIG_SYS_DDR_BLOCK1_SIZE) {
 681                 gd->bd->bi_dram[0].size = CONFIG_SYS_DDR_BLOCK1_SIZE;
 682                 gd->bd->bi_dram[1].start = CONFIG_SYS_DDR_BLOCK2_BASE;
 683                 gd->bd->bi_dram[1].size = gd->ram_size -
 684                                           CONFIG_SYS_DDR_BLOCK1_SIZE;
 685 #ifdef CONFIG_SYS_DDR_BLOCK3_BASE
 686                 if (gd->bi_dram[1].size > CONFIG_SYS_DDR_BLOCK2_SIZE) {
 687                         gd->bd->bi_dram[2].start = CONFIG_SYS_DDR_BLOCK3_BASE;
 688                         gd->bd->bi_dram[2].size = gd->bd->bi_dram[1].size -
 689                                                   CONFIG_SYS_DDR_BLOCK2_SIZE;
 690                         gd->bd->bi_dram[1].size = CONFIG_SYS_DDR_BLOCK2_SIZE;
 691                 }
 692 #endif
 693         } else {
 694                 gd->bd->bi_dram[0].size = gd->ram_size;
 695         }
 696 #ifdef CONFIG_SYS_MEM_RESERVE_SECURE
 697 #ifdef CONFIG_SYS_DDR_BLOCK3_BASE
 698         if (gd->bd->bi_dram[2].size >= CONFIG_SYS_MEM_RESERVE_SECURE) {
 699                 gd->bd->bi_dram[2].size -= CONFIG_SYS_MEM_RESERVE_SECURE;
 700                 gd->arch.secure_ram = gd->bd->bi_dram[2].start +
 701                                       gd->bd->bi_dram[2].size;
 702                 gd->arch.secure_ram |= MEM_RESERVE_SECURE_MAINTAINED;
 703                 gd->ram_size -= CONFIG_SYS_MEM_RESERVE_SECURE;
 704         } else
 705 #endif
 706         {
 707                 if (gd->bd->bi_dram[1].size >= CONFIG_SYS_MEM_RESERVE_SECURE) {
 708                         gd->bd->bi_dram[1].size -=
 709                                         CONFIG_SYS_MEM_RESERVE_SECURE;
 710                         gd->arch.secure_ram = gd->bd->bi_dram[1].start +
 711                                               gd->bd->bi_dram[1].size;
 712                         gd->arch.secure_ram |= MEM_RESERVE_SECURE_MAINTAINED;
 713                         gd->ram_size -= CONFIG_SYS_MEM_RESERVE_SECURE;
 714                 } else if (gd->bd->bi_dram[0].size >
 715                                         CONFIG_SYS_MEM_RESERVE_SECURE) {
 716                         gd->bd->bi_dram[0].size -=
 717                                         CONFIG_SYS_MEM_RESERVE_SECURE;
 718                         gd->arch.secure_ram = gd->bd->bi_dram[0].start +
 719                                               gd->bd->bi_dram[0].size;
 720                         gd->arch.secure_ram |= MEM_RESERVE_SECURE_MAINTAINED;
 721                         gd->ram_size -= CONFIG_SYS_MEM_RESERVE_SECURE;
 722                 }
 723         }
 724 #endif  /* CONFIG_SYS_MEM_RESERVE_SECURE */
 725
 726 #ifdef CONFIG_FSL_MC_ENET
 727         /* Assign memory for MC */
 728 #ifdef CONFIG_SYS_DDR_BLOCK3_BASE
 729         if (gd->bd->bi_dram[2].size >=
 730             board_reserve_ram_top(gd->bd->bi_dram[2].size)) {
 731                 gd->arch.resv_ram = gd->bd->bi_dram[2].start +
 732                             gd->bd->bi_dram[2].size -
 733                             board_reserve_ram_top(gd->bd->bi_dram[2].size);
 734         } else
 735 #endif
 736         {
 737                 if (gd->bd->bi_dram[1].size >=
 738                     board_reserve_ram_top(gd->bd->bi_dram[1].size)) {
 739                         gd->arch.resv_ram = gd->bd->bi_dram[1].start +
 740                                 gd->bd->bi_dram[1].size -
 741                                 board_reserve_ram_top(gd->bd->bi_dram[1].size);
 742                 } else if (gd->bd->bi_dram[0].size >
 743                            board_reserve_ram_top(gd->bd->bi_dram[0].size)) {
 744                         gd->arch.resv_ram = gd->bd->bi_dram[0].start +
 745                                 gd->bd->bi_dram[0].size -
 746                                 board_reserve_ram_top(gd->bd->bi_dram[0].size);
 747                 }
 748         }
 749 #endif  /* CONFIG_FSL_MC_ENET */
 750
 751 #ifdef CONFIG_SYS_DP_DDR_BASE_PHY
 752 #ifdef CONFIG_SYS_DDR_BLOCK3_BASE
 753 #error "This SoC shouldn't have DP DDR"
 754 #endif
 755         if (soc_has_dp_ddr()) {
 756                 /* initialize DP-DDR here */
 757                 puts("DP-DDR:  ");
 758                 /*
 759                  * DDR controller use 0 as the base address for binding.
 760                  * It is mapped to CONFIG_SYS_DP_DDR_BASE for core to access.
 761                  */
 762                 dp_ddr_size = fsl_other_ddr_sdram(CONFIG_SYS_DP_DDR_BASE_PHY,
 763                                           CONFIG_DP_DDR_CTRL,
 764                                           CONFIG_DP_DDR_NUM_CTRLS,
 765                                           CONFIG_DP_DDR_DIMM_SLOTS_PER_CTLR,
 766                                           NULL, NULL, NULL);
 767                 if (dp_ddr_size) {
 768                         gd->bd->bi_dram[2].start = CONFIG_SYS_DP_DDR_BASE;
 769                         gd->bd->bi_dram[2].size = dp_ddr_size;
 770                 } else {
 771                         puts("Not detected");
 772                 }
 773         }
 774 #endif
 775
 776         return 0;
 777 }
 778
 779 #if defined(CONFIG_EFI_LOADER) && !defined(CONFIG_SPL_BUILD)
 780 void efi_add_known_memory(void)
 781 {
 782         int i;
 783         phys_addr_t ram_start, start;
 784         phys_size_t ram_size;
 785         u64 pages;
 786
 787         /* Add RAM */
 788         for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
 789 #ifdef CONFIG_SYS_DP_DDR_BASE_PHY
 790 #ifdef CONFIG_SYS_DDR_BLOCK3_BASE
 791 #error "This SoC shouldn't have DP DDR"
 792 #endif
 793                 if (i == 2)
 794                         continue;       /* skip DP-DDR */
 795 #endif
 796                 ram_start = gd->bd->bi_dram[i].start;
 797                 ram_size = gd->bd->bi_dram[i].size;
 798 #ifdef CONFIG_RESV_RAM
 799                 if (gd->arch.resv_ram >= ram_start &&
 800                     gd->arch.resv_ram < ram_start + ram_size)
 801                         ram_size = gd->arch.resv_ram - ram_start;
 802 #endif
 803                 start = (ram_start + EFI_PAGE_MASK) & ~EFI_PAGE_MASK;
 804                 pages = (ram_size + EFI_PAGE_MASK) >> EFI_PAGE_SHIFT;
 805
 806                 efi_add_memory_map(start, pages, EFI_CONVENTIONAL_MEMORY,
 807                                    false);
 808         }
 809 }
 810 #endif
 811
 812 /*
 813  * Before DDR size is known, early MMU table have DDR mapped as device memory
 814  * to avoid speculative access. To relocate U-Boot to DDR, "normal memory"
 815  * needs to be set for these mappings.
 816  * If a special case configures DDR with holes in the mapping, the holes need
 817  * to be marked as invalid. This is not implemented in this function.
 818  */
 819 void update_early_mmu_table(void)
 820 {
 821         if (!gd->arch.tlb_addr)
 822                 return;
 823
 824         if (gd->ram_size <= CONFIG_SYS_FSL_DRAM_SIZE1) {
 825                 mmu_change_region_attr(
 826                                         CONFIG_SYS_SDRAM_BASE,
 827                                         gd->ram_size,
 828                                         PTE_BLOCK_MEMTYPE(MT_NORMAL)    |
 829                                         PTE_BLOCK_OUTER_SHARE           |
 830                                         PTE_BLOCK_NS                    |
 831                                         PTE_TYPE_VALID);
 832         } else {
 833                 mmu_change_region_attr(
 834                                         CONFIG_SYS_SDRAM_BASE,
 835                                         CONFIG_SYS_DDR_BLOCK1_SIZE,
 836                                         PTE_BLOCK_MEMTYPE(MT_NORMAL)    |
 837                                         PTE_BLOCK_OUTER_SHARE           |
 838                                         PTE_BLOCK_NS                    |
 839                                         PTE_TYPE_VALID);
 840 #ifdef CONFIG_SYS_DDR_BLOCK3_BASE
 841 #ifndef CONFIG_SYS_DDR_BLOCK2_SIZE
 842 #error "Missing CONFIG_SYS_DDR_BLOCK2_SIZE"
 843 #endif
 844                 if (gd->ram_size - CONFIG_SYS_DDR_BLOCK1_SIZE >
 845                     CONFIG_SYS_DDR_BLOCK2_SIZE) {
 846                         mmu_change_region_attr(
 847                                         CONFIG_SYS_DDR_BLOCK2_BASE,
 848                                         CONFIG_SYS_DDR_BLOCK2_SIZE,
 849                                         PTE_BLOCK_MEMTYPE(MT_NORMAL)    |
 850                                         PTE_BLOCK_OUTER_SHARE           |
 851                                         PTE_BLOCK_NS                    |
 852                                         PTE_TYPE_VALID);
 853                         mmu_change_region_attr(
 854                                         CONFIG_SYS_DDR_BLOCK3_BASE,
 855                                         gd->ram_size -
 856                                         CONFIG_SYS_DDR_BLOCK1_SIZE -
 857                                         CONFIG_SYS_DDR_BLOCK2_SIZE,
 858                                         PTE_BLOCK_MEMTYPE(MT_NORMAL)    |
 859                                         PTE_BLOCK_OUTER_SHARE           |
 860                                         PTE_BLOCK_NS                    |
 861                                         PTE_TYPE_VALID);
 862                 } else
 863 #endif
 864                 {
 865                         mmu_change_region_attr(
 866                                         CONFIG_SYS_DDR_BLOCK2_BASE,
 867                                         gd->ram_size -
 868                                         CONFIG_SYS_DDR_BLOCK1_SIZE,
 869                                         PTE_BLOCK_MEMTYPE(MT_NORMAL)    |
 870                                         PTE_BLOCK_OUTER_SHARE           |
 871                                         PTE_BLOCK_NS                    |
 872                                         PTE_TYPE_VALID);
 873                 }
 874         }
 875 }
 876
 877 __weak int dram_init(void)
 878 {
 879         initdram();
 880 #if !defined(CONFIG_SPL) || defined(CONFIG_SPL_BUILD)
 881         /* This will break-before-make MMU for DDR */
 882         update_early_mmu_table();
 883 #endif
 884
 885         return 0;
 886 }