git.sur5r.net Git - u-boot/blob - arch/arm/cpu/armv8/fsl-layerscape/cpu.c

   1 /*
   2  * Copyright 2017 NXP
   3  * Copyright 2014-2015 Freescale Semiconductor, Inc.
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <common.h>
   9 #include <fsl_ddr_sdram.h>
  10 #include <asm/io.h>
  11 #include <linux/errno.h>
  12 #include <asm/system.h>
  13 #include <asm/armv8/mmu.h>
  14 #include <asm/io.h>
  15 #include <asm/arch/fsl_serdes.h>
  16 #include <asm/arch/soc.h>
  17 #include <asm/arch/cpu.h>
  18 #include <asm/arch/speed.h>
  19 #include <fsl_immap.h>
  20 #include <asm/arch/mp.h>
  21 #include <efi_loader.h>
  22 #include <fm_eth.h>
  23 #include <fsl-mc/fsl_mc.h>
  24 #ifdef CONFIG_FSL_ESDHC
  25 #include <fsl_esdhc.h>
  26 #endif
  27 #include <asm/armv8/sec_firmware.h>
  28 #ifdef CONFIG_SYS_FSL_DDR
  29 #include <fsl_ddr.h>
  30 #endif
  31 #include <asm/arch/clock.h>
  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_ARCH_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             (ver == SVR_LS2081A) || (ver == SVR_LS2041A)) {
 106                 for (i = 0; i < ARRAY_SIZE(final_map); i++) {
 107                         switch (final_map[i].phys) {
 108                         case CONFIG_SYS_PCIE1_PHYS_ADDR:
 109                                 final_map[i].phys = 0x2000000000ULL;
 110                                 final_map[i].virt = 0x2000000000ULL;
 111                                 final_map[i].size = 0x800000000ULL;
 112                                 break;
 113                         case CONFIG_SYS_PCIE2_PHYS_ADDR:
 114                                 final_map[i].phys = 0x2800000000ULL;
 115                                 final_map[i].virt = 0x2800000000ULL;
 116                                 final_map[i].size = 0x800000000ULL;
 117                                 break;
 118                         case CONFIG_SYS_PCIE3_PHYS_ADDR:
 119                                 final_map[i].phys = 0x3000000000ULL;
 120                                 final_map[i].virt = 0x3000000000ULL;
 121                                 final_map[i].size = 0x800000000ULL;
 122                                 break;
 123                         case CONFIG_SYS_PCIE4_PHYS_ADDR:
 124                                 final_map[i].phys = 0x3800000000ULL;
 125                                 final_map[i].virt = 0x3800000000ULL;
 126                                 final_map[i].size = 0x800000000ULL;
 127                                 break;
 128                         default:
 129                                 break;
 130                         }
 131                 }
 132         }
 133 #endif
 134 }
 135
 136 /*
 137  * The final tables look similar to early tables, but different in detail.
 138  * These tables are in DRAM. Sub tables are added to enable cache for
 139  * QBMan and OCRAM.
 140  *
 141  * Put the MMU table in secure memory if gd->arch.secure_ram is valid.
 142  * OCRAM will be not used for this purpose so gd->arch.secure_ram can't be 0.
 143  */
 144 static inline void final_mmu_setup(void)
 145 {
 146         u64 tlb_addr_save = gd->arch.tlb_addr;
 147         unsigned int el = current_el();
 148         int index;
 149
 150         /* fix the final_map before filling in the block entries */
 151         fix_pcie_mmu_map();
 152
 153         mem_map = final_map;
 154
 155         /* Update mapping for DDR to actual size */
 156         for (index = 0; index < ARRAY_SIZE(final_map) - 2; index++) {
 157                 /*
 158                  * Find the entry for DDR mapping and update the address and
 159                  * size. Zero-sized mapping will be skipped when creating MMU
 160                  * table.
 161                  */
 162                 switch (final_map[index].virt) {
 163                 case CONFIG_SYS_FSL_DRAM_BASE1:
 164                         final_map[index].virt = gd->bd->bi_dram[0].start;
 165                         final_map[index].phys = gd->bd->bi_dram[0].start;
 166                         final_map[index].size = gd->bd->bi_dram[0].size;
 167                         break;
 168 #ifdef CONFIG_SYS_FSL_DRAM_BASE2
 169                 case CONFIG_SYS_FSL_DRAM_BASE2:
 170 #if (CONFIG_NR_DRAM_BANKS >= 2)
 171                         final_map[index].virt = gd->bd->bi_dram[1].start;
 172                         final_map[index].phys = gd->bd->bi_dram[1].start;
 173                         final_map[index].size = gd->bd->bi_dram[1].size;
 174 #else
 175                         final_map[index].size = 0;
 176 #endif
 177                 break;
 178 #endif
 179 #ifdef CONFIG_SYS_FSL_DRAM_BASE3
 180                 case CONFIG_SYS_FSL_DRAM_BASE3:
 181 #if (CONFIG_NR_DRAM_BANKS >= 3)
 182                         final_map[index].virt = gd->bd->bi_dram[2].start;
 183                         final_map[index].phys = gd->bd->bi_dram[2].start;
 184                         final_map[index].size = gd->bd->bi_dram[2].size;
 185 #else
 186                         final_map[index].size = 0;
 187 #endif
 188                 break;
 189 #endif
 190                 default:
 191                         break;
 192                 }
 193         }
 194
 195 #ifdef CONFIG_SYS_MEM_RESERVE_SECURE
 196         if (gd->arch.secure_ram & MEM_RESERVE_SECURE_MAINTAINED) {
 197                 if (el == 3) {
 198                         /*
 199                          * Only use gd->arch.secure_ram if the address is
 200                          * recalculated. Align to 4KB for MMU table.
 201                          */
 202                         /* put page tables in secure ram */
 203                         index = ARRAY_SIZE(final_map) - 2;
 204                         gd->arch.tlb_addr = gd->arch.secure_ram & ~0xfff;
 205                         final_map[index].virt = gd->arch.secure_ram & ~0x3;
 206                         final_map[index].phys = final_map[index].virt;
 207                         final_map[index].size = CONFIG_SYS_MEM_RESERVE_SECURE;
 208                         final_map[index].attrs = PTE_BLOCK_OUTER_SHARE;
 209                         gd->arch.secure_ram |= MEM_RESERVE_SECURE_SECURED;
 210                         tlb_addr_save = gd->arch.tlb_addr;
 211                 } else {
 212                         /* Use allocated (board_f.c) memory for TLB */
 213                         tlb_addr_save = gd->arch.tlb_allocated;
 214                         gd->arch.tlb_addr = tlb_addr_save;
 215                 }
 216         }
 217 #endif
 218
 219         /* Reset the fill ptr */
 220         gd->arch.tlb_fillptr = tlb_addr_save;
 221
 222         /* Create normal system page tables */
 223         setup_pgtables();
 224
 225         /* Create emergency page tables */
 226         gd->arch.tlb_addr = gd->arch.tlb_fillptr;
 227         gd->arch.tlb_emerg = gd->arch.tlb_addr;
 228         setup_pgtables();
 229         gd->arch.tlb_addr = tlb_addr_save;
 230
 231         /* Disable cache and MMU */
 232         dcache_disable();       /* TLBs are invalidated */
 233         invalidate_icache_all();
 234
 235         /* point TTBR to the new table */
 236         set_ttbr_tcr_mair(el, gd->arch.tlb_addr, get_tcr(el, NULL, NULL),
 237                           MEMORY_ATTRIBUTES);
 238
 239         set_sctlr(get_sctlr() | CR_M);
 240 }
 241
 242 u64 get_page_table_size(void)
 243 {
 244         return 0x10000;
 245 }
 246
 247 int arch_cpu_init(void)
 248 {
 249         /*
 250          * This function is called before U-Boot relocates itself to speed up
 251          * on system running. It is not necessary to run if performance is not
 252          * critical. Skip if MMU is already enabled by SPL or other means.
 253          */
 254         if (get_sctlr() & CR_M)
 255                 return 0;
 256
 257         icache_enable();
 258         __asm_invalidate_dcache_all();
 259         __asm_invalidate_tlb_all();
 260         early_mmu_setup();
 261         set_sctlr(get_sctlr() | CR_C);
 262         return 0;
 263 }
 264
 265 void mmu_setup(void)
 266 {
 267         final_mmu_setup();
 268 }
 269
 270 /*
 271  * This function is called from common/board_r.c.
 272  * It recreates MMU table in main memory.
 273  */
 274 void enable_caches(void)
 275 {
 276         mmu_setup();
 277         __asm_invalidate_tlb_all();
 278         icache_enable();
 279         dcache_enable();
 280 }
 281 #endif
 282
 283 u32 initiator_type(u32 cluster, int init_id)
 284 {
 285         struct ccsr_gur *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
 286         u32 idx = (cluster >> (init_id * 8)) & TP_CLUSTER_INIT_MASK;
 287         u32 type = 0;
 288
 289         type = gur_in32(&gur->tp_ityp[idx]);
 290         if (type & TP_ITYP_AV)
 291                 return type;
 292
 293         return 0;
 294 }
 295
 296 u32 cpu_pos_mask(void)
 297 {
 298         struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
 299         int i = 0;
 300         u32 cluster, type, mask = 0;
 301
 302         do {
 303                 int j;
 304
 305                 cluster = gur_in32(&gur->tp_cluster[i].lower);
 306                 for (j = 0; j < TP_INIT_PER_CLUSTER; j++) {
 307                         type = initiator_type(cluster, j);
 308                         if (type && (TP_ITYP_TYPE(type) == TP_ITYP_TYPE_ARM))
 309                                 mask |= 1 << (i * TP_INIT_PER_CLUSTER + j);
 310                 }
 311                 i++;
 312         } while ((cluster & TP_CLUSTER_EOC) == 0x0);
 313
 314         return mask;
 315 }
 316
 317 u32 cpu_mask(void)
 318 {
 319         struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
 320         int i = 0, count = 0;
 321         u32 cluster, type, mask = 0;
 322
 323         do {
 324                 int j;
 325
 326                 cluster = gur_in32(&gur->tp_cluster[i].lower);
 327                 for (j = 0; j < TP_INIT_PER_CLUSTER; j++) {
 328                         type = initiator_type(cluster, j);
 329                         if (type) {
 330                                 if (TP_ITYP_TYPE(type) == TP_ITYP_TYPE_ARM)
 331                                         mask |= 1 << count;
 332                                 count++;
 333                         }
 334                 }
 335                 i++;
 336         } while ((cluster & TP_CLUSTER_EOC) == 0x0);
 337
 338         return mask;
 339 }
 340
 341 /*
 342  * Return the number of cores on this SOC.
 343  */
 344 int cpu_numcores(void)
 345 {
 346         return hweight32(cpu_mask());
 347 }
 348
 349 int fsl_qoriq_core_to_cluster(unsigned int core)
 350 {
 351         struct ccsr_gur __iomem *gur =
 352                 (void __iomem *)(CONFIG_SYS_FSL_GUTS_ADDR);
 353         int i = 0, count = 0;
 354         u32 cluster;
 355
 356         do {
 357                 int j;
 358
 359                 cluster = gur_in32(&gur->tp_cluster[i].lower);
 360                 for (j = 0; j < TP_INIT_PER_CLUSTER; j++) {
 361                         if (initiator_type(cluster, j)) {
 362                                 if (count == core)
 363                                         return i;
 364                                 count++;
 365                         }
 366                 }
 367                 i++;
 368         } while ((cluster & TP_CLUSTER_EOC) == 0x0);
 369
 370         return -1;      /* cannot identify the cluster */
 371 }
 372
 373 u32 fsl_qoriq_core_to_type(unsigned int core)
 374 {
 375         struct ccsr_gur __iomem *gur =
 376                 (void __iomem *)(CONFIG_SYS_FSL_GUTS_ADDR);
 377         int i = 0, count = 0;
 378         u32 cluster, type;
 379
 380         do {
 381                 int j;
 382
 383                 cluster = gur_in32(&gur->tp_cluster[i].lower);
 384                 for (j = 0; j < TP_INIT_PER_CLUSTER; j++) {
 385                         type = initiator_type(cluster, j);
 386                         if (type) {
 387                                 if (count == core)
 388                                         return type;
 389                                 count++;
 390                         }
 391                 }
 392                 i++;
 393         } while ((cluster & TP_CLUSTER_EOC) == 0x0);
 394
 395         return -1;      /* cannot identify the cluster */
 396 }
 397
 398 #ifndef CONFIG_FSL_LSCH3
 399 uint get_svr(void)
 400 {
 401         struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
 402
 403         return gur_in32(&gur->svr);
 404 }
 405 #endif
 406
 407 #ifdef CONFIG_DISPLAY_CPUINFO
 408 int print_cpuinfo(void)
 409 {
 410         struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
 411         struct sys_info sysinfo;
 412         char buf[32];
 413         unsigned int i, core;
 414         u32 type, rcw, svr = gur_in32(&gur->svr);
 415
 416         puts("SoC: ");
 417
 418         cpu_name(buf);
 419         printf(" %s (0x%x)\n", buf, svr);
 420         memset((u8 *)buf, 0x00, ARRAY_SIZE(buf));
 421         get_sys_info(&sysinfo);
 422         puts("Clock Configuration:");
 423         for_each_cpu(i, core, cpu_numcores(), cpu_mask()) {
 424                 if (!(i % 3))
 425                         puts("\n       ");
 426                 type = TP_ITYP_VER(fsl_qoriq_core_to_type(core));
 427                 printf("CPU%d(%s):%-4s MHz  ", core,
 428                        type == TY_ITYP_VER_A7 ? "A7 " :
 429                        (type == TY_ITYP_VER_A53 ? "A53" :
 430                        (type == TY_ITYP_VER_A57 ? "A57" :
 431                        (type == TY_ITYP_VER_A72 ? "A72" : "   "))),
 432                        strmhz(buf, sysinfo.freq_processor[core]));
 433         }
 434         /* Display platform clock as Bus frequency. */
 435         printf("\n       Bus:      %-4s MHz  ",
 436                strmhz(buf, sysinfo.freq_systembus / CONFIG_SYS_FSL_PCLK_DIV));
 437         printf("DDR:      %-4s MT/s", strmhz(buf, sysinfo.freq_ddrbus));
 438 #ifdef CONFIG_SYS_DPAA_FMAN
 439         printf("  FMAN:     %-4s MHz", strmhz(buf, sysinfo.freq_fman[0]));
 440 #endif
 441 #ifdef CONFIG_SYS_FSL_HAS_DP_DDR
 442         if (soc_has_dp_ddr()) {
 443                 printf("     DP-DDR:   %-4s MT/s",
 444                        strmhz(buf, sysinfo.freq_ddrbus2));
 445         }
 446 #endif
 447         puts("\n");
 448
 449         /*
 450          * Display the RCW, so that no one gets confused as to what RCW
 451          * we're actually using for this boot.
 452          */
 453         puts("Reset Configuration Word (RCW):");
 454         for (i = 0; i < ARRAY_SIZE(gur->rcwsr); i++) {
 455                 rcw = gur_in32(&gur->rcwsr[i]);
 456                 if ((i % 4) == 0)
 457                         printf("\n       %08x:", i * 4);
 458                 printf(" %08x", rcw);
 459         }
 460         puts("\n");
 461
 462         return 0;
 463 }
 464 #endif
 465
 466 #ifdef CONFIG_FSL_ESDHC
 467 int cpu_mmc_init(bd_t *bis)
 468 {
 469         return fsl_esdhc_mmc_init(bis);
 470 }
 471 #endif
 472
 473 int cpu_eth_init(bd_t *bis)
 474 {
 475         int error = 0;
 476
 477 #if defined(CONFIG_FSL_MC_ENET) && !defined(CONFIG_SPL_BUILD)
 478         error = fsl_mc_ldpaa_init(bis);
 479 #endif
 480 #ifdef CONFIG_FMAN_ENET
 481         fm_standard_init(bis);
 482 #endif
 483         return error;
 484 }
 485
 486 static inline int check_psci(void)
 487 {
 488         unsigned int psci_ver;
 489
 490         psci_ver = sec_firmware_support_psci_version();
 491         if (psci_ver == PSCI_INVALID_VER)
 492                 return 1;
 493
 494         return 0;
 495 }
 496
 497 int arch_early_init_r(void)
 498 {
 499 #ifdef CONFIG_SYS_FSL_ERRATUM_A009635
 500         u32 svr_dev_id;
 501         /*
 502          * erratum A009635 is valid only for LS2080A SoC and
 503          * its personalitiesi
 504          */
 505         svr_dev_id = get_svr() >> 16;
 506         if (svr_dev_id == SVR_DEV_LS2080A)
 507                 erratum_a009635();
 508 #endif
 509 #if defined(CONFIG_SYS_FSL_ERRATUM_A009942) && defined(CONFIG_SYS_FSL_DDR)
 510         erratum_a009942_check_cpo();
 511 #endif
 512         if (check_psci()) {
 513                 debug("PSCI: PSCI does not exist.\n");
 514
 515                 /* if PSCI does not exist, boot secondary cores here */
 516                 if (fsl_layerscape_wake_seconday_cores())
 517                         printf("Did not wake secondary cores\n");
 518         }
 519
 520 #ifdef CONFIG_SYS_FSL_HAS_RGMII
 521         fsl_rgmii_init();
 522 #endif
 523
 524 #ifdef CONFIG_SYS_HAS_SERDES
 525         fsl_serdes_init();
 526 #endif
 527 #ifdef CONFIG_FMAN_ENET
 528         fman_enet_init();
 529 #endif
 530         return 0;
 531 }
 532
 533 int timer_init(void)
 534 {
 535         u32 __iomem *cntcr = (u32 *)CONFIG_SYS_FSL_TIMER_ADDR;
 536 #ifdef CONFIG_FSL_LSCH3
 537         u32 __iomem *cltbenr = (u32 *)CONFIG_SYS_FSL_PMU_CLTBENR;
 538 #endif
 539 #ifdef CONFIG_ARCH_LS2080A
 540         u32 __iomem *pctbenr = (u32 *)FSL_PMU_PCTBENR_OFFSET;
 541         u32 svr_dev_id;
 542 #endif
 543 #ifdef COUNTER_FREQUENCY_REAL
 544         unsigned long cntfrq = COUNTER_FREQUENCY_REAL;
 545
 546         /* Update with accurate clock frequency */
 547         if (current_el() == 3)
 548                 asm volatile("msr cntfrq_el0, %0" : : "r" (cntfrq) : "memory");
 549 #endif
 550
 551 #ifdef CONFIG_FSL_LSCH3
 552         /* Enable timebase for all clusters.
 553          * It is safe to do so even some clusters are not enabled.
 554          */
 555         out_le32(cltbenr, 0xf);
 556 #endif
 557
 558 #ifdef CONFIG_ARCH_LS2080A
 559         /*
 560          * In certain Layerscape SoCs, the clock for each core's
 561          * has an enable bit in the PMU Physical Core Time Base Enable
 562          * Register (PCTBENR), which allows the watchdog to operate.
 563          */
 564         setbits_le32(pctbenr, 0xff);
 565         /*
 566          * For LS2080A SoC and its personalities, timer controller
 567          * offset is different
 568          */
 569         svr_dev_id = get_svr() >> 16;
 570         if (svr_dev_id == SVR_DEV_LS2080A)
 571                 cntcr = (u32 *)SYS_FSL_LS2080A_LS2085A_TIMER_ADDR;
 572
 573 #endif
 574
 575         /* Enable clock for timer
 576          * This is a global setting.
 577          */
 578         out_le32(cntcr, 0x1);
 579
 580         return 0;
 581 }
 582
 583 __efi_runtime_data u32 __iomem *rstcr = (u32 *)CONFIG_SYS_FSL_RST_ADDR;
 584
 585 void __efi_runtime reset_cpu(ulong addr)
 586 {
 587         u32 val;
 588
 589         /* Raise RESET_REQ_B */
 590         val = scfg_in32(rstcr);
 591         val |= 0x02;
 592         scfg_out32(rstcr, val);
 593 }
 594
 595 #ifdef CONFIG_EFI_LOADER
 596
 597 void __efi_runtime EFIAPI efi_reset_system(
 598                        enum efi_reset_type reset_type,
 599                        efi_status_t reset_status,
 600                        unsigned long data_size, void *reset_data)
 601 {
 602         switch (reset_type) {
 603         case EFI_RESET_COLD:
 604         case EFI_RESET_WARM:
 605                 reset_cpu(0);
 606                 break;
 607         case EFI_RESET_SHUTDOWN:
 608                 /* Nothing we can do */
 609                 break;
 610         }
 611
 612         while (1) { }
 613 }
 614
 615 void efi_reset_system_init(void)
 616 {
 617        efi_add_runtime_mmio(&rstcr, sizeof(*rstcr));
 618 }
 619
 620 #endif
 621
 622 /*
 623  * Calculate reserved memory with given memory bank
 624  * Return aligned memory size on success
 625  * Return (ram_size + needed size) for failure
 626  */
 627 phys_size_t board_reserve_ram_top(phys_size_t ram_size)
 628 {
 629         phys_size_t ram_top = ram_size;
 630
 631 #if defined(CONFIG_FSL_MC_ENET) && !defined(CONFIG_SPL_BUILD)
 632         ram_top = mc_get_dram_block_size();
 633         if (ram_top > ram_size)
 634                 return ram_size + ram_top;
 635
 636         ram_top = ram_size - ram_top;
 637         /* The start address of MC reserved memory needs to be aligned. */
 638         ram_top &= ~(CONFIG_SYS_MC_RSV_MEM_ALIGN - 1);
 639 #endif
 640
 641         return ram_size - ram_top;
 642 }
 643
 644 phys_size_t get_effective_memsize(void)
 645 {
 646         phys_size_t ea_size, rem = 0;
 647
 648         /*
 649          * For ARMv8 SoCs, DDR memory is split into two or three regions. The
 650          * first region is 2GB space at 0x8000_0000. Secure memory needs to
 651          * allocated from first region. If the memory extends to  the second
 652          * region (or the third region if applicable), Management Complex (MC)
 653          * memory should be put into the highest region, i.e. the end of DDR
 654          * memory. CONFIG_MAX_MEM_MAPPED is set to the size of first region so
 655          * U-Boot doesn't relocate itself into higher address. Should DDR be
 656          * configured to skip the first region, this function needs to be
 657          * adjusted.
 658          */
 659         if (gd->ram_size > CONFIG_MAX_MEM_MAPPED) {
 660                 ea_size = CONFIG_MAX_MEM_MAPPED;
 661                 rem = gd->ram_size - ea_size;
 662         } else {
 663                 ea_size = gd->ram_size;
 664         }
 665
 666 #ifdef CONFIG_SYS_MEM_RESERVE_SECURE
 667         /* Check if we have enough space for secure memory */
 668         if (ea_size > CONFIG_SYS_MEM_RESERVE_SECURE)
 669                 ea_size -= CONFIG_SYS_MEM_RESERVE_SECURE;
 670         else
 671                 printf("Error: No enough space for secure memory.\n");
 672 #endif
 673         /* Check if we have enough memory for MC */
 674         if (rem < board_reserve_ram_top(rem)) {
 675                 /* Not enough memory in high region to reserve */
 676                 if (ea_size > board_reserve_ram_top(ea_size))
 677                         ea_size -= board_reserve_ram_top(ea_size);
 678                 else
 679                         printf("Error: No enough space for reserved memory.\n");
 680         }
 681
 682         return ea_size;
 683 }
 684
 685 int dram_init_banksize(void)
 686 {
 687 #ifdef CONFIG_SYS_DP_DDR_BASE_PHY
 688         phys_size_t dp_ddr_size;
 689 #endif
 690
 691         /*
 692          * gd->ram_size has the total size of DDR memory, less reserved secure
 693          * memory. The DDR extends from low region to high region(s) presuming
 694          * no hole is created with DDR configuration. gd->arch.secure_ram tracks
 695          * the location of secure memory. gd->arch.resv_ram tracks the location
 696          * of reserved memory for Management Complex (MC). Because gd->ram_size
 697          * is reduced by this function if secure memory is reserved, checking
 698          * gd->arch.secure_ram should be done to avoid running it repeatedly.
 699          */
 700
 701 #ifdef CONFIG_SYS_MEM_RESERVE_SECURE
 702         if (gd->arch.secure_ram & MEM_RESERVE_SECURE_MAINTAINED) {
 703                 debug("No need to run again, skip %s\n", __func__);
 704
 705                 return 0;
 706         }
 707 #endif
 708
 709         gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
 710         if (gd->ram_size > CONFIG_SYS_DDR_BLOCK1_SIZE) {
 711                 gd->bd->bi_dram[0].size = CONFIG_SYS_DDR_BLOCK1_SIZE;
 712                 gd->bd->bi_dram[1].start = CONFIG_SYS_DDR_BLOCK2_BASE;
 713                 gd->bd->bi_dram[1].size = gd->ram_size -
 714                                           CONFIG_SYS_DDR_BLOCK1_SIZE;
 715 #ifdef CONFIG_SYS_DDR_BLOCK3_BASE
 716                 if (gd->bi_dram[1].size > CONFIG_SYS_DDR_BLOCK2_SIZE) {
 717                         gd->bd->bi_dram[2].start = CONFIG_SYS_DDR_BLOCK3_BASE;
 718                         gd->bd->bi_dram[2].size = gd->bd->bi_dram[1].size -
 719                                                   CONFIG_SYS_DDR_BLOCK2_SIZE;
 720                         gd->bd->bi_dram[1].size = CONFIG_SYS_DDR_BLOCK2_SIZE;
 721                 }
 722 #endif
 723         } else {
 724                 gd->bd->bi_dram[0].size = gd->ram_size;
 725         }
 726 #ifdef CONFIG_SYS_MEM_RESERVE_SECURE
 727         if (gd->bd->bi_dram[0].size >
 728                                 CONFIG_SYS_MEM_RESERVE_SECURE) {
 729                 gd->bd->bi_dram[0].size -=
 730                                 CONFIG_SYS_MEM_RESERVE_SECURE;
 731                 gd->arch.secure_ram = gd->bd->bi_dram[0].start +
 732                                       gd->bd->bi_dram[0].size;
 733                 gd->arch.secure_ram |= MEM_RESERVE_SECURE_MAINTAINED;
 734                 gd->ram_size -= CONFIG_SYS_MEM_RESERVE_SECURE;
 735         }
 736 #endif  /* CONFIG_SYS_MEM_RESERVE_SECURE */
 737
 738 #if defined(CONFIG_FSL_MC_ENET) && !defined(CONFIG_SPL_BUILD)
 739         /* Assign memory for MC */
 740 #ifdef CONFIG_SYS_DDR_BLOCK3_BASE
 741         if (gd->bd->bi_dram[2].size >=
 742             board_reserve_ram_top(gd->bd->bi_dram[2].size)) {
 743                 gd->arch.resv_ram = gd->bd->bi_dram[2].start +
 744                             gd->bd->bi_dram[2].size -
 745                             board_reserve_ram_top(gd->bd->bi_dram[2].size);
 746         } else
 747 #endif
 748         {
 749                 if (gd->bd->bi_dram[1].size >=
 750                     board_reserve_ram_top(gd->bd->bi_dram[1].size)) {
 751                         gd->arch.resv_ram = gd->bd->bi_dram[1].start +
 752                                 gd->bd->bi_dram[1].size -
 753                                 board_reserve_ram_top(gd->bd->bi_dram[1].size);
 754                 } else if (gd->bd->bi_dram[0].size >
 755                            board_reserve_ram_top(gd->bd->bi_dram[0].size)) {
 756                         gd->arch.resv_ram = gd->bd->bi_dram[0].start +
 757                                 gd->bd->bi_dram[0].size -
 758                                 board_reserve_ram_top(gd->bd->bi_dram[0].size);
 759                 }
 760         }
 761 #endif  /* CONFIG_FSL_MC_ENET */
 762
 763 #ifdef CONFIG_SYS_DP_DDR_BASE_PHY
 764 #ifdef CONFIG_SYS_DDR_BLOCK3_BASE
 765 #error "This SoC shouldn't have DP DDR"
 766 #endif
 767         if (soc_has_dp_ddr()) {
 768                 /* initialize DP-DDR here */
 769                 puts("DP-DDR:  ");
 770                 /*
 771                  * DDR controller use 0 as the base address for binding.
 772                  * It is mapped to CONFIG_SYS_DP_DDR_BASE for core to access.
 773                  */
 774                 dp_ddr_size = fsl_other_ddr_sdram(CONFIG_SYS_DP_DDR_BASE_PHY,
 775                                           CONFIG_DP_DDR_CTRL,
 776                                           CONFIG_DP_DDR_NUM_CTRLS,
 777                                           CONFIG_DP_DDR_DIMM_SLOTS_PER_CTLR,
 778                                           NULL, NULL, NULL);
 779                 if (dp_ddr_size) {
 780                         gd->bd->bi_dram[2].start = CONFIG_SYS_DP_DDR_BASE;
 781                         gd->bd->bi_dram[2].size = dp_ddr_size;
 782                 } else {
 783                         puts("Not detected");
 784                 }
 785         }
 786 #endif
 787
 788 #ifdef CONFIG_SYS_MEM_RESERVE_SECURE
 789         debug("%s is called. gd->ram_size is reduced to %lu\n",
 790               __func__, (ulong)gd->ram_size);
 791 #endif
 792
 793         return 0;
 794 }
 795
 796 #if defined(CONFIG_EFI_LOADER) && !defined(CONFIG_SPL_BUILD)
 797 void efi_add_known_memory(void)
 798 {
 799         int i;
 800         phys_addr_t ram_start, start;
 801         phys_size_t ram_size;
 802         u64 pages;
 803
 804         /* Add RAM */
 805         for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
 806 #ifdef CONFIG_SYS_DP_DDR_BASE_PHY
 807 #ifdef CONFIG_SYS_DDR_BLOCK3_BASE
 808 #error "This SoC shouldn't have DP DDR"
 809 #endif
 810                 if (i == 2)
 811                         continue;       /* skip DP-DDR */
 812 #endif
 813                 ram_start = gd->bd->bi_dram[i].start;
 814                 ram_size = gd->bd->bi_dram[i].size;
 815 #ifdef CONFIG_RESV_RAM
 816                 if (gd->arch.resv_ram >= ram_start &&
 817                     gd->arch.resv_ram < ram_start + ram_size)
 818                         ram_size = gd->arch.resv_ram - ram_start;
 819 #endif
 820                 start = (ram_start + EFI_PAGE_MASK) & ~EFI_PAGE_MASK;
 821                 pages = (ram_size + EFI_PAGE_MASK) >> EFI_PAGE_SHIFT;
 822
 823                 efi_add_memory_map(start, pages, EFI_CONVENTIONAL_MEMORY,
 824                                    false);
 825         }
 826 }
 827 #endif
 828
 829 /*
 830  * Before DDR size is known, early MMU table have DDR mapped as device memory
 831  * to avoid speculative access. To relocate U-Boot to DDR, "normal memory"
 832  * needs to be set for these mappings.
 833  * If a special case configures DDR with holes in the mapping, the holes need
 834  * to be marked as invalid. This is not implemented in this function.
 835  */
 836 void update_early_mmu_table(void)
 837 {
 838         if (!gd->arch.tlb_addr)
 839                 return;
 840
 841         if (gd->ram_size <= CONFIG_SYS_FSL_DRAM_SIZE1) {
 842                 mmu_change_region_attr(
 843                                         CONFIG_SYS_SDRAM_BASE,
 844                                         gd->ram_size,
 845                                         PTE_BLOCK_MEMTYPE(MT_NORMAL)    |
 846                                         PTE_BLOCK_OUTER_SHARE           |
 847                                         PTE_BLOCK_NS                    |
 848                                         PTE_TYPE_VALID);
 849         } else {
 850                 mmu_change_region_attr(
 851                                         CONFIG_SYS_SDRAM_BASE,
 852                                         CONFIG_SYS_DDR_BLOCK1_SIZE,
 853                                         PTE_BLOCK_MEMTYPE(MT_NORMAL)    |
 854                                         PTE_BLOCK_OUTER_SHARE           |
 855                                         PTE_BLOCK_NS                    |
 856                                         PTE_TYPE_VALID);
 857 #ifdef CONFIG_SYS_DDR_BLOCK3_BASE
 858 #ifndef CONFIG_SYS_DDR_BLOCK2_SIZE
 859 #error "Missing CONFIG_SYS_DDR_BLOCK2_SIZE"
 860 #endif
 861                 if (gd->ram_size - CONFIG_SYS_DDR_BLOCK1_SIZE >
 862                     CONFIG_SYS_DDR_BLOCK2_SIZE) {
 863                         mmu_change_region_attr(
 864                                         CONFIG_SYS_DDR_BLOCK2_BASE,
 865                                         CONFIG_SYS_DDR_BLOCK2_SIZE,
 866                                         PTE_BLOCK_MEMTYPE(MT_NORMAL)    |
 867                                         PTE_BLOCK_OUTER_SHARE           |
 868                                         PTE_BLOCK_NS                    |
 869                                         PTE_TYPE_VALID);
 870                         mmu_change_region_attr(
 871                                         CONFIG_SYS_DDR_BLOCK3_BASE,
 872                                         gd->ram_size -
 873                                         CONFIG_SYS_DDR_BLOCK1_SIZE -
 874                                         CONFIG_SYS_DDR_BLOCK2_SIZE,
 875                                         PTE_BLOCK_MEMTYPE(MT_NORMAL)    |
 876                                         PTE_BLOCK_OUTER_SHARE           |
 877                                         PTE_BLOCK_NS                    |
 878                                         PTE_TYPE_VALID);
 879                 } else
 880 #endif
 881                 {
 882                         mmu_change_region_attr(
 883                                         CONFIG_SYS_DDR_BLOCK2_BASE,
 884                                         gd->ram_size -
 885                                         CONFIG_SYS_DDR_BLOCK1_SIZE,
 886                                         PTE_BLOCK_MEMTYPE(MT_NORMAL)    |
 887                                         PTE_BLOCK_OUTER_SHARE           |
 888                                         PTE_BLOCK_NS                    |
 889                                         PTE_TYPE_VALID);
 890                 }
 891         }
 892 }
 893
 894 __weak int dram_init(void)
 895 {
 896         fsl_initdram();
 897 #if !defined(CONFIG_SPL) || defined(CONFIG_SPL_BUILD)
 898         /* This will break-before-make MMU for DDR */
 899         update_early_mmu_table();
 900 #endif
 901
 902         return 0;
 903 }