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         size_t *boot_code_size = &(__secondary_boot_code_size);
  58         u32 mask = cpu_pos_mask();
  59         int off_prev = -1;
  60
  61         off = fdt_path_offset(blob, "/cpus");
  62         if (off < 0) {
  63                 puts("couldn't find /cpus node\n");
  64                 return;
  65         }
  66
  67         fdt_support_default_count_cells(blob, off, &addr_cells, NULL);
  68
  69         off = fdt_node_offset_by_prop_value(blob, off_prev, "device_type",
  70                                             "cpu", 4);
  71         while (off != -FDT_ERR_NOTFOUND) {
  72                 reg = (fdt32_t *)fdt_getprop(blob, off, "reg", 0);
  73                 if (reg) {
  74                         core_id = fdt_read_number(reg, addr_cells);
  75                         if (!test_bit(id_to_core(core_id), &mask)) {
  76                                 fdt_del_node(blob, off);
  77                                 off = off_prev;
  78                         }
  79                 }
  80                 off_prev = off;
  81                 off = fdt_node_offset_by_prop_value(blob, off_prev,
  82                                                     "device_type", "cpu", 4);
  83         }
  84
  85 #if defined(CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT) && \
  86         defined(CONFIG_SEC_FIRMWARE_ARMV8_PSCI)
  87         int node;
  88         u32 psci_ver;
  89
  90         /* Check the psci version to determine if the psci is supported */
  91         psci_ver = sec_firmware_support_psci_version();
  92         if (psci_ver == 0xffffffff) {
  93                 /* remove psci DT node */
  94                 node = fdt_path_offset(blob, "/psci");
  95                 if (node >= 0)
  96                         goto remove_psci_node;
  97
  98                 node = fdt_node_offset_by_compatible(blob, -1, "arm,psci");
  99                 if (node >= 0)
 100                         goto remove_psci_node;
 101
 102                 node = fdt_node_offset_by_compatible(blob, -1, "arm,psci-0.2");
 103                 if (node >= 0)
 104                         goto remove_psci_node;
 105
 106                 node = fdt_node_offset_by_compatible(blob, -1, "arm,psci-1.0");
 107                 if (node >= 0)
 108                         goto remove_psci_node;
 109
 110 remove_psci_node:
 111                 if (node >= 0)
 112                         fdt_del_node(blob, node);
 113         } else {
 114                 return;
 115         }
 116 #endif
 117         off = fdt_path_offset(blob, "/cpus");
 118         if (off < 0) {
 119                 puts("couldn't find /cpus node\n");
 120                 return;
 121         }
 122         fdt_support_default_count_cells(blob, off, &addr_cells, NULL);
 123
 124         off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
 125         while (off != -FDT_ERR_NOTFOUND) {
 126                 reg = (fdt32_t *)fdt_getprop(blob, off, "reg", 0);
 127                 if (reg) {
 128                         core_id = fdt_read_number(reg, addr_cells);
 129                         if (core_id  == 0 || (is_core_online(core_id))) {
 130                                 val = spin_tbl_addr;
 131                                 val += id_to_core(core_id) *
 132                                        SPIN_TABLE_ELEM_SIZE;
 133                                 val = cpu_to_fdt64(val);
 134                                 fdt_setprop_string(blob, off, "enable-method",
 135                                                    "spin-table");
 136                                 fdt_setprop(blob, off, "cpu-release-addr",
 137                                             &val, sizeof(val));
 138                         } else {
 139                                 debug("skipping offline core\n");
 140                         }
 141                 } else {
 142                         puts("Warning: found cpu node without reg property\n");
 143                 }
 144                 off = fdt_node_offset_by_prop_value(blob, off, "device_type",
 145                                                     "cpu", 4);
 146         }
 147
 148         fdt_add_mem_rsv(blob, (uintptr_t)&secondary_boot_code,
 149                         *boot_code_size);
 150 #if CONFIG_IS_ENABLED(EFI_LOADER)
 151         efi_add_memory_map((uintptr_t)&secondary_boot_code, *boot_code_size,
 152                            EFI_RESERVED_MEMORY_TYPE);
 153 #endif
 154 }
 155 #endif
 156
 157 void fsl_fdt_disable_usb(void *blob)
 158 {
 159         int off;
 160         /*
 161          * SYSCLK is used as a reference clock for USB. When the USB
 162          * controller is used, SYSCLK must meet the additional requirement
 163          * of 100 MHz.
 164          */
 165         if (CONFIG_SYS_CLK_FREQ != 100000000) {
 166                 off = fdt_node_offset_by_compatible(blob, -1, "snps,dwc3");
 167                 while (off != -FDT_ERR_NOTFOUND) {
 168                         fdt_status_disabled(blob, off);
 169                         off = fdt_node_offset_by_compatible(blob, off,
 170                                                             "snps,dwc3");
 171                 }
 172         }
 173 }
 174
 175 #ifdef CONFIG_HAS_FEATURE_GIC64K_ALIGN
 176 static void fdt_fixup_gic(void *blob)
 177 {
 178         int offset, err;
 179         u64 reg[8];
 180         struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
 181         unsigned int val;
 182         struct ccsr_scfg __iomem *scfg = (void *)CONFIG_SYS_FSL_SCFG_ADDR;
 183         int align_64k = 0;
 184
 185         val = gur_in32(&gur->svr);
 186
 187         if (!IS_SVR_DEV(val, SVR_DEV(SVR_LS1043A))) {
 188                 align_64k = 1;
 189         } else if (SVR_REV(val) != REV1_0) {
 190                 val = scfg_in32(&scfg->gic_align) & (0x01 << GIC_ADDR_BIT);
 191                 if (!val)
 192                         align_64k = 1;
 193         }
 194
 195         offset = fdt_subnode_offset(blob, 0, "interrupt-controller@1400000");
 196         if (offset < 0) {
 197                 printf("WARNING: fdt_subnode_offset can't find node %s: %s\n",
 198                        "interrupt-controller@1400000", fdt_strerror(offset));
 199                 return;
 200         }
 201
 202         /* Fixup gic node align with 64K */
 203         if (align_64k) {
 204                 reg[0] = cpu_to_fdt64(GICD_BASE_64K);
 205                 reg[1] = cpu_to_fdt64(GICD_SIZE_64K);
 206                 reg[2] = cpu_to_fdt64(GICC_BASE_64K);
 207                 reg[3] = cpu_to_fdt64(GICC_SIZE_64K);
 208                 reg[4] = cpu_to_fdt64(GICH_BASE_64K);
 209                 reg[5] = cpu_to_fdt64(GICH_SIZE_64K);
 210                 reg[6] = cpu_to_fdt64(GICV_BASE_64K);
 211                 reg[7] = cpu_to_fdt64(GICV_SIZE_64K);
 212         } else {
 213         /* Fixup gic node align with default */
 214                 reg[0] = cpu_to_fdt64(GICD_BASE);
 215                 reg[1] = cpu_to_fdt64(GICD_SIZE);
 216                 reg[2] = cpu_to_fdt64(GICC_BASE);
 217                 reg[3] = cpu_to_fdt64(GICC_SIZE);
 218                 reg[4] = cpu_to_fdt64(GICH_BASE);
 219                 reg[5] = cpu_to_fdt64(GICH_SIZE);
 220                 reg[6] = cpu_to_fdt64(GICV_BASE);
 221                 reg[7] = cpu_to_fdt64(GICV_SIZE);
 222         }
 223
 224         err = fdt_setprop(blob, offset, "reg", reg, sizeof(reg));
 225         if (err < 0) {
 226                 printf("WARNING: fdt_setprop can't set %s from node %s: %s\n",
 227                        "reg", "interrupt-controller@1400000",
 228                        fdt_strerror(err));
 229                 return;
 230         }
 231
 232         return;
 233 }
 234 #endif
 235
 236 #ifdef CONFIG_HAS_FEATURE_ENHANCED_MSI
 237 static int _fdt_fixup_msi_node(void *blob, const char *name,
 238                                   int irq_0, int irq_1, int rev)
 239 {
 240         int err, offset, len;
 241         u32 tmp[4][3];
 242         void *p;
 243
 244         offset = fdt_path_offset(blob, name);
 245         if (offset < 0) {
 246                 printf("WARNING: fdt_path_offset can't find path %s: %s\n",
 247                        name, fdt_strerror(offset));
 248                 return 0;
 249         }
 250
 251         /*fixup the property of interrupts*/
 252
 253         tmp[0][0] = cpu_to_fdt32(0x0);
 254         tmp[0][1] = cpu_to_fdt32(irq_0);
 255         tmp[0][2] = cpu_to_fdt32(0x4);
 256
 257         if (rev > REV1_0) {
 258                 tmp[1][0] = cpu_to_fdt32(0x0);
 259                 tmp[1][1] = cpu_to_fdt32(irq_1);
 260                 tmp[1][2] = cpu_to_fdt32(0x4);
 261                 tmp[2][0] = cpu_to_fdt32(0x0);
 262                 tmp[2][1] = cpu_to_fdt32(irq_1 + 1);
 263                 tmp[2][2] = cpu_to_fdt32(0x4);
 264                 tmp[3][0] = cpu_to_fdt32(0x0);
 265                 tmp[3][1] = cpu_to_fdt32(irq_1 + 2);
 266                 tmp[3][2] = cpu_to_fdt32(0x4);
 267                 len = sizeof(tmp);
 268         } else {
 269                 len = sizeof(tmp[0]);
 270         }
 271
 272         err = fdt_setprop(blob, offset, "interrupts", tmp, len);
 273         if (err < 0) {
 274                 printf("WARNING: fdt_setprop can't set %s from node %s: %s\n",
 275                        "interrupts", name, fdt_strerror(err));
 276                 return 0;
 277         }
 278
 279         /*fixup the property of reg*/
 280         p = (char *)fdt_getprop(blob, offset, "reg", &len);
 281         if (!p) {
 282                 printf("WARNING: fdt_getprop can't get %s from node %s\n",
 283                        "reg", name);
 284                 return 0;
 285         }
 286
 287         memcpy((char *)tmp, p, len);
 288
 289         if (rev > REV1_0)
 290                 *((u32 *)tmp + 3) = cpu_to_fdt32(0x1000);
 291         else
 292                 *((u32 *)tmp + 3) = cpu_to_fdt32(0x8);
 293
 294         err = fdt_setprop(blob, offset, "reg", tmp, len);
 295         if (err < 0) {
 296                 printf("WARNING: fdt_setprop can't set %s from node %s: %s\n",
 297                        "reg", name, fdt_strerror(err));
 298                 return 0;
 299         }
 300
 301         /*fixup the property of compatible*/
 302         if (rev > REV1_0)
 303                 err = fdt_setprop_string(blob, offset, "compatible",
 304                                          "fsl,ls1043a-v1.1-msi");
 305         else
 306                 err = fdt_setprop_string(blob, offset, "compatible",
 307                                          "fsl,ls1043a-msi");
 308         if (err < 0) {
 309                 printf("WARNING: fdt_setprop can't set %s from node %s: %s\n",
 310                        "compatible", name, fdt_strerror(err));
 311                 return 0;
 312         }
 313
 314         return 1;
 315 }
 316
 317 static int _fdt_fixup_pci_msi(void *blob, const char *name, int rev)
 318 {
 319         int offset, len, err;
 320         void *p;
 321         int val;
 322         u32 tmp[4][8];
 323
 324         offset = fdt_path_offset(blob, name);
 325         if (offset < 0) {
 326                 printf("WARNING: fdt_path_offset can't find path %s: %s\n",
 327                        name, fdt_strerror(offset));
 328                 return 0;
 329         }
 330
 331         p = (char *)fdt_getprop(blob, offset, "interrupt-map", &len);
 332         if (!p || len != sizeof(tmp)) {
 333                 printf("WARNING: fdt_getprop can't get %s from node %s\n",
 334                        "interrupt-map", name);
 335                 return 0;
 336         }
 337
 338         memcpy((char *)tmp, p, len);
 339
 340         val = fdt32_to_cpu(tmp[0][6]);
 341         if (rev == REV1_0) {
 342                 tmp[1][6] = cpu_to_fdt32(val + 1);
 343                 tmp[2][6] = cpu_to_fdt32(val + 2);
 344                 tmp[3][6] = cpu_to_fdt32(val + 3);
 345         } else {
 346                 tmp[1][6] = cpu_to_fdt32(val);
 347                 tmp[2][6] = cpu_to_fdt32(val);
 348                 tmp[3][6] = cpu_to_fdt32(val);
 349         }
 350
 351         err = fdt_setprop(blob, offset, "interrupt-map", tmp, sizeof(tmp));
 352         if (err < 0) {
 353                 printf("WARNING: fdt_setprop can't set %s from node %s: %s.\n",
 354                        "interrupt-map", name, fdt_strerror(err));
 355                 return 0;
 356         }
 357         return 1;
 358 }
 359
 360 /* Fixup msi node for ls1043a rev1.1*/
 361
 362 static void fdt_fixup_msi(void *blob)
 363 {
 364         struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
 365         unsigned int rev;
 366
 367         rev = gur_in32(&gur->svr);
 368
 369         if (!IS_SVR_DEV(rev, SVR_DEV(SVR_LS1043A)))
 370                 return;
 371
 372         rev = SVR_REV(rev);
 373
 374         _fdt_fixup_msi_node(blob, "/soc/msi-controller1@1571000",
 375                             116, 111, rev);
 376         _fdt_fixup_msi_node(blob, "/soc/msi-controller2@1572000",
 377                             126, 121, rev);
 378         _fdt_fixup_msi_node(blob, "/soc/msi-controller3@1573000",
 379                             160, 155, rev);
 380
 381         _fdt_fixup_pci_msi(blob, "/soc/pcie@3400000", rev);
 382         _fdt_fixup_pci_msi(blob, "/soc/pcie@3500000", rev);
 383         _fdt_fixup_pci_msi(blob, "/soc/pcie@3600000", rev);
 384 }
 385 #endif
 386
 387 #ifdef CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT
 388 /* Remove JR node used by SEC firmware */
 389 void fdt_fixup_remove_jr(void *blob)
 390 {
 391         int jr_node, addr_cells, len;
 392         int crypto_node = fdt_path_offset(blob, "crypto");
 393         u64 jr_offset, used_jr;
 394         fdt32_t *reg;
 395
 396         used_jr = sec_firmware_used_jobring_offset();
 397         fdt_support_default_count_cells(blob, crypto_node, &addr_cells, NULL);
 398
 399         jr_node = fdt_node_offset_by_compatible(blob, crypto_node,
 400                                                 "fsl,sec-v4.0-job-ring");
 401
 402         while (jr_node != -FDT_ERR_NOTFOUND) {
 403                 reg = (fdt32_t *)fdt_getprop(blob, jr_node, "reg", &len);
 404                 jr_offset = fdt_read_number(reg, addr_cells);
 405                 if (jr_offset == used_jr) {
 406                         fdt_del_node(blob, jr_node);
 407                         break;
 408                 }
 409                 jr_node = fdt_node_offset_by_compatible(blob, jr_node,
 410                                                         "fsl,sec-v4.0-job-ring");
 411         }
 412 }
 413 #endif
 414
 415 #ifdef CONFIG_ARCH_LS1028A
 416 static void fdt_disable_multimedia(void *blob, unsigned int svr)
 417 {
 418         int off;
 419
 420         if (IS_MULTIMEDIA_EN(svr))
 421                 return;
 422
 423         /* Disable eDP/LCD node */
 424         off = fdt_node_offset_by_compatible(blob, -1, "arm,mali-dp500");
 425         if (off != -FDT_ERR_NOTFOUND)
 426                 fdt_status_disabled(blob, off);
 427
 428         /* Disable GPU node */
 429         off = fdt_node_offset_by_compatible(blob, -1, "fsl,ls1028a-gpu");
 430         if (off != -FDT_ERR_NOTFOUND)
 431                 fdt_status_disabled(blob, off);
 432 }
 433 #endif
 434
 435 #ifdef CONFIG_PCIE_ECAM_GENERIC
 436 __weak void fdt_fixup_ecam(void *blob)
 437 {
 438 }
 439 #endif
 440
 441 void ft_cpu_setup(void *blob, bd_t *bd)
 442 {
 443         struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
 444         unsigned int svr = gur_in32(&gur->svr);
 445
 446         /* delete crypto node if not on an E-processor */
 447         if (!IS_E_PROCESSOR(svr))
 448                 fdt_fixup_crypto_node(blob, 0);
 449 #if CONFIG_SYS_FSL_SEC_COMPAT >= 4
 450         else {
 451                 ccsr_sec_t __iomem *sec;
 452
 453 #ifdef CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT
 454                 fdt_fixup_remove_jr(blob);
 455                 fdt_fixup_kaslr(blob);
 456 #endif
 457
 458                 sec = (void __iomem *)CONFIG_SYS_FSL_SEC_ADDR;
 459                 fdt_fixup_crypto_node(blob, sec_in32(&sec->secvid_ms));
 460         }
 461 #endif
 462
 463 #ifdef CONFIG_MP
 464         ft_fixup_cpu(blob);
 465 #endif
 466
 467 #ifdef CONFIG_SYS_NS16550
 468         do_fixup_by_compat_u32(blob, "fsl,ns16550",
 469                                "clock-frequency", CONFIG_SYS_NS16550_CLK, 1);
 470 #endif
 471
 472         do_fixup_by_path_u32(blob, "/sysclk", "clock-frequency",
 473                              CONFIG_SYS_CLK_FREQ, 1);
 474
 475 #ifdef CONFIG_GIC_V3_ITS
 476         ls_gic_rd_tables_init(blob);
 477 #endif
 478
 479 #if defined(CONFIG_PCIE_LAYERSCAPE) || defined(CONFIG_PCIE_LAYERSCAPE_GEN4)
 480         ft_pci_setup(blob, bd);
 481 #endif
 482
 483 #ifdef CONFIG_FSL_ESDHC
 484         fdt_fixup_esdhc(blob, bd);
 485 #endif
 486
 487 #ifdef CONFIG_SYS_DPAA_QBMAN
 488         fdt_fixup_bportals(blob);
 489         fdt_fixup_qportals(blob);
 490         do_fixup_by_compat_u32(blob, "fsl,qman",
 491                                "clock-frequency", get_qman_freq(), 1);
 492 #endif
 493
 494 #ifdef CONFIG_SYS_DPAA_FMAN
 495         fdt_fixup_fman_firmware(blob);
 496 #endif
 497 #ifndef CONFIG_ARCH_LS1012A
 498         fsl_fdt_disable_usb(blob);
 499 #endif
 500 #ifdef CONFIG_HAS_FEATURE_GIC64K_ALIGN
 501         fdt_fixup_gic(blob);
 502 #endif
 503 #ifdef CONFIG_HAS_FEATURE_ENHANCED_MSI
 504         fdt_fixup_msi(blob);
 505 #endif
 506 #ifdef CONFIG_ARCH_LS1028A
 507         fdt_disable_multimedia(blob, svr);
 508 #endif
 509 #ifdef CONFIG_PCIE_ECAM_GENERIC
 510         fdt_fixup_ecam(blob);
 511 #endif
 512 }