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

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