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