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

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