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

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright 2014-2015 Freescale Semiconductor, Inc.
   4  * Copyright 2020 NXP
   5  */
   6
   7 #include <common.h>
   8 #include <clock_legacy.h>
   9 #include <efi_loader.h>
  10 #include <log.h>
  11 #include <asm/cache.h>
  12 #include <linux/libfdt.h>
  13 #include <fdt_support.h>
  14 #include <phy.h>
  15 #ifdef CONFIG_FSL_LSCH3
  16 #include <asm/arch/fdt.h>
  17 #endif
  18 #ifdef CONFIG_FSL_ESDHC
  19 #include <fsl_esdhc.h>
  20 #endif
  21 #ifdef CONFIG_SYS_DPAA_FMAN
  22 #include <fsl_fman.h>
  23 #endif
  24 #ifdef CONFIG_MP
  25 #include <asm/arch/mp.h>
  26 #endif
  27 #include <fsl_sec.h>
  28 #include <asm/arch-fsl-layerscape/soc.h>
  29 #ifdef CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT
  30 #include <asm/armv8/sec_firmware.h>
  31 #endif
  32 #include <asm/arch/speed.h>
  33 #include <fsl_qbman.h>
  34
  35 int fdt_fixup_phy_connection(void *blob, int offset, phy_interface_t phyc)
  36 {
  37         const char *conn;
  38
  39         /* Do NOT apply fixup for backplane modes specified in DT */
  40         if (phyc == PHY_INTERFACE_MODE_XGMII) {
  41                 conn = fdt_getprop(blob, offset, "phy-connection-type", NULL);
  42                 if (is_backplane_mode(conn))
  43                         return 0;
  44         }
  45         return fdt_setprop_string(blob, offset, "phy-connection-type",
  46                                          phy_string_for_interface(phyc));
  47 }
  48
  49 #ifdef CONFIG_MP
  50 void ft_fixup_cpu(void *blob)
  51 {
  52         int off;
  53         __maybe_unused u64 spin_tbl_addr = (u64)get_spin_tbl_addr();
  54         fdt32_t *reg;
  55         int addr_cells;
  56         u64 val, core_id;
  57         u32 mask = cpu_pos_mask();
  58         int off_prev = -1;
  59
  60         off = fdt_path_offset(blob, "/cpus");
  61         if (off < 0) {
  62                 puts("couldn't find /cpus node\n");
  63                 return;
  64         }
  65
  66         fdt_support_default_count_cells(blob, off, &addr_cells, NULL);
  67
  68         off = fdt_node_offset_by_prop_value(blob, off_prev, "device_type",
  69                                             "cpu", 4);
  70         while (off != -FDT_ERR_NOTFOUND) {
  71                 reg = (fdt32_t *)fdt_getprop(blob, off, "reg", 0);
  72                 if (reg) {
  73                         core_id = fdt_read_number(reg, addr_cells);
  74                         if (!test_bit(id_to_core(core_id), &mask)) {
  75                                 fdt_del_node(blob, off);
  76                                 off = off_prev;
  77                         }
  78                 }
  79                 off_prev = off;
  80                 off = fdt_node_offset_by_prop_value(blob, off_prev,
  81                                                     "device_type", "cpu", 4);
  82         }
  83
  84 #if defined(CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT) && \
  85         defined(CONFIG_SEC_FIRMWARE_ARMV8_PSCI)
  86         int node;
  87         u32 psci_ver;
  88
  89         /* Check the psci version to determine if the psci is supported */
  90         psci_ver = sec_firmware_support_psci_version();
  91         if (psci_ver == 0xffffffff) {
  92                 /* remove psci DT node */
  93                 node = fdt_path_offset(blob, "/psci");
  94                 if (node >= 0)
  95                         goto remove_psci_node;
  96
  97                 node = fdt_node_offset_by_compatible(blob, -1, "arm,psci");
  98                 if (node >= 0)
  99                         goto remove_psci_node;
 100
 101                 node = fdt_node_offset_by_compatible(blob, -1, "arm,psci-0.2");
 102                 if (node >= 0)
 103                         goto remove_psci_node;
 104
 105                 node = fdt_node_offset_by_compatible(blob, -1, "arm,psci-1.0");
 106                 if (node >= 0)
 107                         goto remove_psci_node;
 108
 109 remove_psci_node:
 110                 if (node >= 0)
 111                         fdt_del_node(blob, node);
 112         } else {
 113                 return;
 114         }
 115 #endif
 116         off = fdt_path_offset(blob, "/cpus");
 117         if (off < 0) {
 118                 puts("couldn't find /cpus node\n");
 119                 return;
 120         }
 121         fdt_support_default_count_cells(blob, off, &addr_cells, NULL);
 122
 123         off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
 124         while (off != -FDT_ERR_NOTFOUND) {
 125                 reg = (fdt32_t *)fdt_getprop(blob, off, "reg", 0);
 126                 if (reg) {
 127                         core_id = fdt_read_number(reg, addr_cells);
 128                         if (core_id  == 0 || (is_core_online(core_id))) {
 129                                 val = spin_tbl_addr;
 130                                 val += id_to_core(core_id) *
 131                                        SPIN_TABLE_ELEM_SIZE;
 132                                 val = cpu_to_fdt64(val);
 133                                 fdt_setprop_string(blob, off, "enable-method",
 134                                                    "spin-table");
 135                                 fdt_setprop(blob, off, "cpu-release-addr",
 136                                             &val, sizeof(val));
 137                         } else {
 138                                 debug("skipping offline core\n");
 139                         }
 140                 } else {
 141                         puts("Warning: found cpu node without reg property\n");
 142                 }
 143                 off = fdt_node_offset_by_prop_value(blob, off, "device_type",
 144                                                     "cpu", 4);
 145         }
 146
 147         fdt_add_mem_rsv(blob, (uintptr_t)secondary_boot_code_start,
 148                         secondary_boot_code_size);
 149 #if CONFIG_IS_ENABLED(EFI_LOADER)
 150         efi_add_memory_map((uintptr_t)secondary_boot_code_start,
 151                            secondary_boot_code_size, EFI_RESERVED_MEMORY_TYPE);
 152 #endif
 153 }
 154 #endif
 155
 156 void fsl_fdt_disable_usb(void *blob)
 157 {
 158         int off;
 159         /*
 160          * SYSCLK is used as a reference clock for USB. When the USB
 161          * controller is used, SYSCLK must meet the additional requirement
 162          * of 100 MHz.
 163          */
 164         if (CONFIG_SYS_CLK_FREQ != 100000000) {
 165                 off = fdt_node_offset_by_compatible(blob, -1, "snps,dwc3");
 166                 while (off != -FDT_ERR_NOTFOUND) {
 167                         fdt_status_disabled(blob, off);
 168                         off = fdt_node_offset_by_compatible(blob, off,
 169                                                             "snps,dwc3");
 170                 }
 171         }
 172 }
 173
 174 #ifdef CONFIG_HAS_FEATURE_GIC64K_ALIGN
 175 static void fdt_fixup_gic(void *blob)
 176 {
 177         int offset, err;
 178         u64 reg[8];
 179         struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
 180         unsigned int val;
 181         struct ccsr_scfg __iomem *scfg = (void *)CONFIG_SYS_FSL_SCFG_ADDR;
 182         int align_64k = 0;
 183
 184         val = gur_in32(&gur->svr);
 185
 186         if (!IS_SVR_DEV(val, SVR_DEV(SVR_LS1043A))) {
 187                 align_64k = 1;
 188         } else if (SVR_REV(val) != REV1_0) {
 189                 val = scfg_in32(&scfg->gic_align) & (0x01 << GIC_ADDR_BIT);
 190                 if (!val)
 191                         align_64k = 1;
 192         }
 193
 194         offset = fdt_subnode_offset(blob, 0, "interrupt-controller@1400000");
 195         if (offset < 0) {
 196                 printf("WARNING: fdt_subnode_offset can't find node %s: %s\n",
 197                        "interrupt-controller@1400000", fdt_strerror(offset));
 198                 return;
 199         }
 200
 201         /* Fixup gic node align with 64K */
 202         if (align_64k) {
 203                 reg[0] = cpu_to_fdt64(GICD_BASE_64K);
 204                 reg[1] = cpu_to_fdt64(GICD_SIZE_64K);
 205                 reg[2] = cpu_to_fdt64(GICC_BASE_64K);
 206                 reg[3] = cpu_to_fdt64(GICC_SIZE_64K);
 207                 reg[4] = cpu_to_fdt64(GICH_BASE_64K);
 208                 reg[5] = cpu_to_fdt64(GICH_SIZE_64K);
 209                 reg[6] = cpu_to_fdt64(GICV_BASE_64K);
 210                 reg[7] = cpu_to_fdt64(GICV_SIZE_64K);
 211         } else {
 212         /* Fixup gic node align with default */
 213                 reg[0] = cpu_to_fdt64(GICD_BASE);
 214                 reg[1] = cpu_to_fdt64(GICD_SIZE);
 215                 reg[2] = cpu_to_fdt64(GICC_BASE);
 216                 reg[3] = cpu_to_fdt64(GICC_SIZE);
 217                 reg[4] = cpu_to_fdt64(GICH_BASE);
 218                 reg[5] = cpu_to_fdt64(GICH_SIZE);
 219                 reg[6] = cpu_to_fdt64(GICV_BASE);
 220                 reg[7] = cpu_to_fdt64(GICV_SIZE);
 221         }
 222
 223         err = fdt_setprop(blob, offset, "reg", reg, sizeof(reg));
 224         if (err < 0) {
 225                 printf("WARNING: fdt_setprop can't set %s from node %s: %s\n",
 226                        "reg", "interrupt-controller@1400000",
 227                        fdt_strerror(err));
 228                 return;
 229         }
 230
 231         return;
 232 }
 233 #endif
 234
 235 #ifdef CONFIG_HAS_FEATURE_ENHANCED_MSI
 236 static int _fdt_fixup_msi_node(void *blob, const char *name,
 237                                   int irq_0, int irq_1, int rev)
 238 {
 239         int err, offset, len;
 240         u32 tmp[4][3];
 241         void *p;
 242
 243         offset = fdt_path_offset(blob, name);
 244         if (offset < 0) {
 245                 printf("WARNING: fdt_path_offset can't find path %s: %s\n",
 246                        name, fdt_strerror(offset));
 247                 return 0;
 248         }
 249
 250         /*fixup the property of interrupts*/
 251
 252         tmp[0][0] = cpu_to_fdt32(0x0);
 253         tmp[0][1] = cpu_to_fdt32(irq_0);
 254         tmp[0][2] = cpu_to_fdt32(0x4);
 255
 256         if (rev > REV1_0) {
 257                 tmp[1][0] = cpu_to_fdt32(0x0);
 258                 tmp[1][1] = cpu_to_fdt32(irq_1);
 259                 tmp[1][2] = cpu_to_fdt32(0x4);
 260                 tmp[2][0] = cpu_to_fdt32(0x0);
 261                 tmp[2][1] = cpu_to_fdt32(irq_1 + 1);
 262                 tmp[2][2] = cpu_to_fdt32(0x4);
 263                 tmp[3][0] = cpu_to_fdt32(0x0);
 264                 tmp[3][1] = cpu_to_fdt32(irq_1 + 2);
 265                 tmp[3][2] = cpu_to_fdt32(0x4);
 266                 len = sizeof(tmp);
 267         } else {
 268                 len = sizeof(tmp[0]);
 269         }
 270
 271         err = fdt_setprop(blob, offset, "interrupts", tmp, len);
 272         if (err < 0) {
 273                 printf("WARNING: fdt_setprop can't set %s from node %s: %s\n",
 274                        "interrupts", name, fdt_strerror(err));
 275                 return 0;
 276         }
 277
 278         /*fixup the property of reg*/
 279         p = (char *)fdt_getprop(blob, offset, "reg", &len);
 280         if (!p) {
 281                 printf("WARNING: fdt_getprop can't get %s from node %s\n",
 282                        "reg", name);
 283                 return 0;
 284         }
 285
 286         memcpy((char *)tmp, p, len);
 287
 288         if (rev > REV1_0)
 289                 *((u32 *)tmp + 3) = cpu_to_fdt32(0x1000);
 290         else
 291                 *((u32 *)tmp + 3) = cpu_to_fdt32(0x8);
 292
 293         err = fdt_setprop(blob, offset, "reg", tmp, len);
 294         if (err < 0) {
 295                 printf("WARNING: fdt_setprop can't set %s from node %s: %s\n",
 296                        "reg", name, fdt_strerror(err));
 297                 return 0;
 298         }
 299
 300         /*fixup the property of compatible*/
 301         if (rev > REV1_0)
 302                 err = fdt_setprop_string(blob, offset, "compatible",
 303                                          "fsl,ls1043a-v1.1-msi");
 304         else
 305                 err = fdt_setprop_string(blob, offset, "compatible",
 306                                          "fsl,ls1043a-msi");
 307         if (err < 0) {
 308                 printf("WARNING: fdt_setprop can't set %s from node %s: %s\n",
 309                        "compatible", name, fdt_strerror(err));
 310                 return 0;
 311         }
 312
 313         return 1;
 314 }
 315
 316 static int _fdt_fixup_pci_msi(void *blob, const char *name, int rev)
 317 {
 318         int offset, len, err;
 319         void *p;
 320         int val;
 321         u32 tmp[4][8];
 322
 323         offset = fdt_path_offset(blob, name);
 324         if (offset < 0) {
 325                 printf("WARNING: fdt_path_offset can't find path %s: %s\n",
 326                        name, fdt_strerror(offset));
 327                 return 0;
 328         }
 329
 330         p = (char *)fdt_getprop(blob, offset, "interrupt-map", &len);
 331         if (!p || len != sizeof(tmp)) {
 332                 printf("WARNING: fdt_getprop can't get %s from node %s\n",
 333                        "interrupt-map", name);
 334                 return 0;
 335         }
 336
 337         memcpy((char *)tmp, p, len);
 338
 339         val = fdt32_to_cpu(tmp[0][6]);
 340         if (rev == REV1_0) {
 341                 tmp[1][6] = cpu_to_fdt32(val + 1);
 342                 tmp[2][6] = cpu_to_fdt32(val + 2);
 343                 tmp[3][6] = cpu_to_fdt32(val + 3);
 344         } else {
 345                 tmp[1][6] = cpu_to_fdt32(val);
 346                 tmp[2][6] = cpu_to_fdt32(val);
 347                 tmp[3][6] = cpu_to_fdt32(val);
 348         }
 349
 350         err = fdt_setprop(blob, offset, "interrupt-map", tmp, sizeof(tmp));
 351         if (err < 0) {
 352                 printf("WARNING: fdt_setprop can't set %s from node %s: %s.\n",
 353                        "interrupt-map", name, fdt_strerror(err));
 354                 return 0;
 355         }
 356         return 1;
 357 }
 358
 359 /* Fixup msi node for ls1043a rev1.1*/
 360
 361 static void fdt_fixup_msi(void *blob)
 362 {
 363         struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
 364         unsigned int rev;
 365
 366         rev = gur_in32(&gur->svr);
 367
 368         if (!IS_SVR_DEV(rev, SVR_DEV(SVR_LS1043A)))
 369                 return;
 370
 371         rev = SVR_REV(rev);
 372
 373         _fdt_fixup_msi_node(blob, "/soc/msi-controller1@1571000",
 374                             116, 111, rev);
 375         _fdt_fixup_msi_node(blob, "/soc/msi-controller2@1572000",
 376                             126, 121, rev);
 377         _fdt_fixup_msi_node(blob, "/soc/msi-controller3@1573000",
 378                             160, 155, rev);
 379
 380         _fdt_fixup_pci_msi(blob, "/soc/pcie@3400000", rev);
 381         _fdt_fixup_pci_msi(blob, "/soc/pcie@3500000", rev);
 382         _fdt_fixup_pci_msi(blob, "/soc/pcie@3600000", rev);
 383 }
 384 #endif
 385
 386 #ifdef CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT
 387 /* Remove JR node used by SEC firmware */
 388 void fdt_fixup_remove_jr(void *blob)
 389 {
 390         int jr_node, addr_cells, len;
 391         int crypto_node = fdt_path_offset(blob, "crypto");
 392         u64 jr_offset, used_jr;
 393         fdt32_t *reg;
 394
 395         used_jr = sec_firmware_used_jobring_offset();
 396         fdt_support_default_count_cells(blob, crypto_node, &addr_cells, NULL);
 397
 398         jr_node = fdt_node_offset_by_compatible(blob, crypto_node,
 399                                                 "fsl,sec-v4.0-job-ring");
 400
 401         while (jr_node != -FDT_ERR_NOTFOUND) {
 402                 reg = (fdt32_t *)fdt_getprop(blob, jr_node, "reg", &len);
 403                 jr_offset = fdt_read_number(reg, addr_cells);
 404                 if (jr_offset == used_jr) {
 405                         fdt_del_node(blob, jr_node);
 406                         break;
 407                 }
 408                 jr_node = fdt_node_offset_by_compatible(blob, jr_node,
 409                                                         "fsl,sec-v4.0-job-ring");
 410         }
 411 }
 412 #endif
 413
 414 #ifdef CONFIG_ARCH_LS1028A
 415 static void fdt_disable_multimedia(void *blob, unsigned int svr)
 416 {
 417         int off;
 418
 419         if (IS_MULTIMEDIA_EN(svr))
 420                 return;
 421
 422         /* Disable eDP/LCD node */
 423         off = fdt_node_offset_by_compatible(blob, -1, "arm,mali-dp500");
 424         if (off != -FDT_ERR_NOTFOUND)
 425                 fdt_status_disabled(blob, off);
 426
 427         /* Disable GPU node */
 428         off = fdt_node_offset_by_compatible(blob, -1, "fsl,ls1028a-gpu");
 429         if (off != -FDT_ERR_NOTFOUND)
 430                 fdt_status_disabled(blob, off);
 431 }
 432 #endif
 433
 434 #ifdef CONFIG_PCIE_ECAM_GENERIC
 435 __weak void fdt_fixup_ecam(void *blob)
 436 {
 437 }
 438 #endif
 439
 440 /*
 441  * If it is a non-E part the crypto is disabled on the following SoCs:
 442  *  - LS1043A
 443  *  - LS1088A
 444  *  - LS2080A
 445  *  - LS2088A
 446  * and their personalities.
 447  *
 448  * On all other SoCs just the export-controlled ciphers are disabled, that
 449  * means that the following is still working:
 450  *  - hashing (using MDHA - message digest hash accelerator)
 451  *  - random number generation (using RNG4)
 452  *  - cyclic redundancy checking (using CRCA)
 453  *  - runtime integrity checker (RTIC)
 454  *
 455  * The linux driver will figure out what is available and what is not.
 456  * Therefore, we just remove the crypto node on the SoCs which have no crypto
 457  * support at all.
 458  */
 459 static bool crypto_is_disabled(unsigned int svr)
 460 {
 461         if (IS_E_PROCESSOR(svr))
 462                 return false;
 463
 464         if (IS_SVR_DEV(svr, SVR_DEV(SVR_LS1043A)))
 465                 return true;
 466
 467         if (IS_SVR_DEV(svr, SVR_DEV(SVR_LS1088A)))
 468                 return true;
 469
 470         if (IS_SVR_DEV(svr, SVR_DEV(SVR_LS2080A)))
 471                 return true;
 472
 473         if (IS_SVR_DEV(svr, SVR_DEV(SVR_LS2088A)))
 474                 return true;
 475
 476         return false;
 477 }
 478
 479 void ft_cpu_setup(void *blob, struct bd_info *bd)
 480 {
 481         struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
 482         unsigned int svr = gur_in32(&gur->svr);
 483
 484         /* delete crypto node if not on an E-processor */
 485         if (crypto_is_disabled(svr))
 486                 fdt_fixup_crypto_node(blob, 0);
 487 #if CONFIG_SYS_FSL_SEC_COMPAT >= 4
 488         else {
 489                 ccsr_sec_t __iomem *sec;
 490
 491 #ifdef CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT
 492                 fdt_fixup_remove_jr(blob);
 493                 fdt_fixup_kaslr(blob);
 494 #endif
 495
 496                 sec = (void __iomem *)CONFIG_SYS_FSL_SEC_ADDR;
 497                 fdt_fixup_crypto_node(blob, sec_in32(&sec->secvid_ms));
 498         }
 499 #endif
 500
 501 #ifdef CONFIG_MP
 502         ft_fixup_cpu(blob);
 503 #endif
 504
 505 #ifdef CONFIG_SYS_NS16550
 506         do_fixup_by_compat_u32(blob, "fsl,ns16550",
 507                                "clock-frequency", CONFIG_SYS_NS16550_CLK, 1);
 508 #endif
 509
 510         do_fixup_by_path_u32(blob, "/sysclk", "clock-frequency",
 511                              CONFIG_SYS_CLK_FREQ, 1);
 512
 513 #ifdef CONFIG_GIC_V3_ITS
 514         ls_gic_rd_tables_init(blob);
 515 #endif
 516
 517 #if defined(CONFIG_PCIE_LAYERSCAPE) || defined(CONFIG_PCIE_LAYERSCAPE_GEN4)
 518         ft_pci_setup(blob, bd);
 519 #endif
 520
 521 #ifdef CONFIG_FSL_ESDHC
 522         fdt_fixup_esdhc(blob, bd);
 523 #endif
 524
 525 #ifdef CONFIG_SYS_DPAA_QBMAN
 526         fdt_fixup_bportals(blob);
 527         fdt_fixup_qportals(blob);
 528         do_fixup_by_compat_u32(blob, "fsl,qman",
 529                                "clock-frequency", get_qman_freq(), 1);
 530 #endif
 531
 532 #ifdef CONFIG_SYS_DPAA_FMAN
 533         fdt_fixup_fman_firmware(blob);
 534 #endif
 535 #ifndef CONFIG_ARCH_LS1012A
 536         fsl_fdt_disable_usb(blob);
 537 #endif
 538 #ifdef CONFIG_HAS_FEATURE_GIC64K_ALIGN
 539         fdt_fixup_gic(blob);
 540 #endif
 541 #ifdef CONFIG_HAS_FEATURE_ENHANCED_MSI
 542         fdt_fixup_msi(blob);
 543 #endif
 544 #ifdef CONFIG_ARCH_LS1028A
 545         fdt_disable_multimedia(blob, svr);
 546 #endif
 547 #ifdef CONFIG_PCIE_ECAM_GENERIC
 548         fdt_fixup_ecam(blob);
 549 #endif
 550 }