1 /* 2 * (C) Copyright 2007 3 * Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com 4 * 5 * See file CREDITS for list of people who contributed to this 6 * project. 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License as 10 * published by the Free Software Foundation; either version 2 of 11 * the License, or (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 21 * MA 02111-1307 USA 22 */ 23 24 #include <common.h> 25 #include <linux/ctype.h> 26 #include <linux/types.h> 27 #include <asm/global_data.h> 28 #include <fdt.h> 29 #include <libfdt.h> 30 #include <fdt_support.h> 31 #include <exports.h> 32 33 /* 34 * Global data (for the gd->bd) 35 */ 36 DECLARE_GLOBAL_DATA_PTR; 37 38 /** 39 * fdt_getprop_u32_default - Find a node and return it's property or a default 40 * 41 * @fdt: ptr to device tree 42 * @path: path of node 43 * @prop: property name 44 * @dflt: default value if the property isn't found 45 * 46 * Convenience function to find a node and return it's property or a 47 * default value if it doesn't exist. 48 */ 49 u32 fdt_getprop_u32_default(void *fdt, const char *path, const char *prop, 50 const u32 dflt) 51 { 52 const u32 *val; 53 int off; 54 55 off = fdt_path_offset(fdt, path); 56 if (off < 0) 57 return dflt; 58 59 val = fdt_getprop(fdt, off, prop, NULL); 60 if (val) 61 return *val; 62 else 63 return dflt; 64 } 65 66 /** 67 * fdt_find_and_setprop: Find a node and set it's property 68 * 69 * @fdt: ptr to device tree 70 * @node: path of node 71 * @prop: property name 72 * @val: ptr to new value 73 * @len: length of new property value 74 * @create: flag to create the property if it doesn't exist 75 * 76 * Convenience function to directly set a property given the path to the node. 77 */ 78 int fdt_find_and_setprop(void *fdt, const char *node, const char *prop, 79 const void *val, int len, int create) 80 { 81 int nodeoff = fdt_path_offset(fdt, node); 82 83 if (nodeoff < 0) 84 return nodeoff; 85 86 if ((!create) && (fdt_get_property(fdt, nodeoff, prop, 0) == NULL)) 87 return 0; /* create flag not set; so exit quietly */ 88 89 return fdt_setprop(fdt, nodeoff, prop, val, len); 90 } 91 92 #ifdef CONFIG_OF_STDOUT_VIA_ALIAS 93 static int fdt_fixup_stdout(void *fdt, int chosenoff) 94 { 95 int err = 0; 96 #ifdef CONFIG_CONS_INDEX 97 int node; 98 char sername[9] = { 0 }; 99 const char *path; 100 101 sprintf(sername, "serial%d", CONFIG_CONS_INDEX - 1); 102 103 err = node = fdt_path_offset(fdt, "/aliases"); 104 if (node >= 0) { 105 int len; 106 path = fdt_getprop(fdt, node, sername, &len); 107 if (path) { 108 char *p = malloc(len); 109 err = -FDT_ERR_NOSPACE; 110 if (p) { 111 memcpy(p, path, len); 112 err = fdt_setprop(fdt, chosenoff, 113 "linux,stdout-path", p, len); 114 free(p); 115 } 116 } else { 117 err = len; 118 } 119 } 120 #endif 121 if (err < 0) 122 printf("WARNING: could not set linux,stdout-path %s.\n", 123 fdt_strerror(err)); 124 125 return err; 126 } 127 #endif 128 129 int fdt_initrd(void *fdt, ulong initrd_start, ulong initrd_end, int force) 130 { 131 int nodeoffset; 132 int err, j, total; 133 u32 tmp; 134 const char *path; 135 uint64_t addr, size; 136 137 /* Find the "chosen" node. */ 138 nodeoffset = fdt_path_offset (fdt, "/chosen"); 139 140 /* If there is no "chosen" node in the blob return */ 141 if (nodeoffset < 0) { 142 printf("fdt_initrd: %s\n", fdt_strerror(nodeoffset)); 143 return nodeoffset; 144 } 145 146 /* just return if initrd_start/end aren't valid */ 147 if ((initrd_start == 0) || (initrd_end == 0)) 148 return 0; 149 150 total = fdt_num_mem_rsv(fdt); 151 152 /* 153 * Look for an existing entry and update it. If we don't find 154 * the entry, we will j be the next available slot. 155 */ 156 for (j = 0; j < total; j++) { 157 err = fdt_get_mem_rsv(fdt, j, &addr, &size); 158 if (addr == initrd_start) { 159 fdt_del_mem_rsv(fdt, j); 160 break; 161 } 162 } 163 164 err = fdt_add_mem_rsv(fdt, initrd_start, initrd_end - initrd_start + 1); 165 if (err < 0) { 166 printf("fdt_initrd: %s\n", fdt_strerror(err)); 167 return err; 168 } 169 170 path = fdt_getprop(fdt, nodeoffset, "linux,initrd-start", NULL); 171 if ((path == NULL) || force) { 172 tmp = __cpu_to_be32(initrd_start); 173 err = fdt_setprop(fdt, nodeoffset, 174 "linux,initrd-start", &tmp, sizeof(tmp)); 175 if (err < 0) { 176 printf("WARNING: " 177 "could not set linux,initrd-start %s.\n", 178 fdt_strerror(err)); 179 return err; 180 } 181 tmp = __cpu_to_be32(initrd_end); 182 err = fdt_setprop(fdt, nodeoffset, 183 "linux,initrd-end", &tmp, sizeof(tmp)); 184 if (err < 0) { 185 printf("WARNING: could not set linux,initrd-end %s.\n", 186 fdt_strerror(err)); 187 188 return err; 189 } 190 } 191 192 return 0; 193 } 194 195 int fdt_chosen(void *fdt, int force) 196 { 197 int nodeoffset; 198 int err; 199 char *str; /* used to set string properties */ 200 const char *path; 201 202 err = fdt_check_header(fdt); 203 if (err < 0) { 204 printf("fdt_chosen: %s\n", fdt_strerror(err)); 205 return err; 206 } 207 208 /* 209 * Find the "chosen" node. 210 */ 211 nodeoffset = fdt_path_offset (fdt, "/chosen"); 212 213 /* 214 * If there is no "chosen" node in the blob, create it. 215 */ 216 if (nodeoffset < 0) { 217 /* 218 * Create a new node "/chosen" (offset 0 is root level) 219 */ 220 nodeoffset = fdt_add_subnode(fdt, 0, "chosen"); 221 if (nodeoffset < 0) { 222 printf("WARNING: could not create /chosen %s.\n", 223 fdt_strerror(nodeoffset)); 224 return nodeoffset; 225 } 226 } 227 228 /* 229 * Create /chosen properites that don't exist in the fdt. 230 * If the property exists, update it only if the "force" parameter 231 * is true. 232 */ 233 str = getenv("bootargs"); 234 if (str != NULL) { 235 path = fdt_getprop(fdt, nodeoffset, "bootargs", NULL); 236 if ((path == NULL) || force) { 237 err = fdt_setprop(fdt, nodeoffset, 238 "bootargs", str, strlen(str)+1); 239 if (err < 0) 240 printf("WARNING: could not set bootargs %s.\n", 241 fdt_strerror(err)); 242 } 243 } 244 245 #ifdef CONFIG_OF_STDOUT_VIA_ALIAS 246 path = fdt_getprop(fdt, nodeoffset, "linux,stdout-path", NULL); 247 if ((path == NULL) || force) 248 err = fdt_fixup_stdout(fdt, nodeoffset); 249 #endif 250 251 #ifdef OF_STDOUT_PATH 252 path = fdt_getprop(fdt, nodeoffset, "linux,stdout-path", NULL); 253 if ((path == NULL) || force) { 254 err = fdt_setprop(fdt, nodeoffset, 255 "linux,stdout-path", OF_STDOUT_PATH, strlen(OF_STDOUT_PATH)+1); 256 if (err < 0) 257 printf("WARNING: could not set linux,stdout-path %s.\n", 258 fdt_strerror(err)); 259 } 260 #endif 261 262 return err; 263 } 264 265 void do_fixup_by_path(void *fdt, const char *path, const char *prop, 266 const void *val, int len, int create) 267 { 268 #if defined(DEBUG) 269 int i; 270 debug("Updating property '%s/%s' = ", path, prop); 271 for (i = 0; i < len; i++) 272 debug(" %.2x", *(u8*)(val+i)); 273 debug("\n"); 274 #endif 275 int rc = fdt_find_and_setprop(fdt, path, prop, val, len, create); 276 if (rc) 277 printf("Unable to update property %s:%s, err=%s\n", 278 path, prop, fdt_strerror(rc)); 279 } 280 281 void do_fixup_by_path_u32(void *fdt, const char *path, const char *prop, 282 u32 val, int create) 283 { 284 val = cpu_to_fdt32(val); 285 do_fixup_by_path(fdt, path, prop, &val, sizeof(val), create); 286 } 287 288 void do_fixup_by_prop(void *fdt, 289 const char *pname, const void *pval, int plen, 290 const char *prop, const void *val, int len, 291 int create) 292 { 293 int off; 294 #if defined(DEBUG) 295 int i; 296 debug("Updating property '%s' = ", prop); 297 for (i = 0; i < len; i++) 298 debug(" %.2x", *(u8*)(val+i)); 299 debug("\n"); 300 #endif 301 off = fdt_node_offset_by_prop_value(fdt, -1, pname, pval, plen); 302 while (off != -FDT_ERR_NOTFOUND) { 303 if (create || (fdt_get_property(fdt, off, prop, 0) != NULL)) 304 fdt_setprop(fdt, off, prop, val, len); 305 off = fdt_node_offset_by_prop_value(fdt, off, pname, pval, plen); 306 } 307 } 308 309 void do_fixup_by_prop_u32(void *fdt, 310 const char *pname, const void *pval, int plen, 311 const char *prop, u32 val, int create) 312 { 313 val = cpu_to_fdt32(val); 314 do_fixup_by_prop(fdt, pname, pval, plen, prop, &val, 4, create); 315 } 316 317 void do_fixup_by_compat(void *fdt, const char *compat, 318 const char *prop, const void *val, int len, int create) 319 { 320 int off = -1; 321 #if defined(DEBUG) 322 int i; 323 debug("Updating property '%s' = ", prop); 324 for (i = 0; i < len; i++) 325 debug(" %.2x", *(u8*)(val+i)); 326 debug("\n"); 327 #endif 328 off = fdt_node_offset_by_compatible(fdt, -1, compat); 329 while (off != -FDT_ERR_NOTFOUND) { 330 if (create || (fdt_get_property(fdt, off, prop, 0) != NULL)) 331 fdt_setprop(fdt, off, prop, val, len); 332 off = fdt_node_offset_by_compatible(fdt, off, compat); 333 } 334 } 335 336 void do_fixup_by_compat_u32(void *fdt, const char *compat, 337 const char *prop, u32 val, int create) 338 { 339 val = cpu_to_fdt32(val); 340 do_fixup_by_compat(fdt, compat, prop, &val, 4, create); 341 } 342 343 int fdt_fixup_memory(void *blob, u64 start, u64 size) 344 { 345 int err, nodeoffset, len = 0; 346 u8 tmp[16]; 347 const u32 *addrcell, *sizecell; 348 349 err = fdt_check_header(blob); 350 if (err < 0) { 351 printf("%s: %s\n", __FUNCTION__, fdt_strerror(err)); 352 return err; 353 } 354 355 /* update, or add and update /memory node */ 356 nodeoffset = fdt_path_offset(blob, "/memory"); 357 if (nodeoffset < 0) { 358 nodeoffset = fdt_add_subnode(blob, 0, "memory"); 359 if (nodeoffset < 0) 360 printf("WARNING: could not create /memory: %s.\n", 361 fdt_strerror(nodeoffset)); 362 return nodeoffset; 363 } 364 err = fdt_setprop(blob, nodeoffset, "device_type", "memory", 365 sizeof("memory")); 366 if (err < 0) { 367 printf("WARNING: could not set %s %s.\n", "device_type", 368 fdt_strerror(err)); 369 return err; 370 } 371 372 addrcell = fdt_getprop(blob, 0, "#address-cells", NULL); 373 /* use shifts and mask to ensure endianness */ 374 if ((addrcell) && (*addrcell == 2)) { 375 tmp[0] = (start >> 56) & 0xff; 376 tmp[1] = (start >> 48) & 0xff; 377 tmp[2] = (start >> 40) & 0xff; 378 tmp[3] = (start >> 32) & 0xff; 379 tmp[4] = (start >> 24) & 0xff; 380 tmp[5] = (start >> 16) & 0xff; 381 tmp[6] = (start >> 8) & 0xff; 382 tmp[7] = (start ) & 0xff; 383 len = 8; 384 } else { 385 tmp[0] = (start >> 24) & 0xff; 386 tmp[1] = (start >> 16) & 0xff; 387 tmp[2] = (start >> 8) & 0xff; 388 tmp[3] = (start ) & 0xff; 389 len = 4; 390 } 391 392 sizecell = fdt_getprop(blob, 0, "#size-cells", NULL); 393 /* use shifts and mask to ensure endianness */ 394 if ((sizecell) && (*sizecell == 2)) { 395 tmp[0+len] = (size >> 56) & 0xff; 396 tmp[1+len] = (size >> 48) & 0xff; 397 tmp[2+len] = (size >> 40) & 0xff; 398 tmp[3+len] = (size >> 32) & 0xff; 399 tmp[4+len] = (size >> 24) & 0xff; 400 tmp[5+len] = (size >> 16) & 0xff; 401 tmp[6+len] = (size >> 8) & 0xff; 402 tmp[7+len] = (size ) & 0xff; 403 len += 8; 404 } else { 405 tmp[0+len] = (size >> 24) & 0xff; 406 tmp[1+len] = (size >> 16) & 0xff; 407 tmp[2+len] = (size >> 8) & 0xff; 408 tmp[3+len] = (size ) & 0xff; 409 len += 4; 410 } 411 412 err = fdt_setprop(blob, nodeoffset, "reg", tmp, len); 413 if (err < 0) { 414 printf("WARNING: could not set %s %s.\n", 415 "reg", fdt_strerror(err)); 416 return err; 417 } 418 return 0; 419 } 420 421 void fdt_fixup_ethernet(void *fdt) 422 { 423 int node, i, j; 424 char enet[16], *tmp, *end; 425 char mac[16] = "ethaddr"; 426 const char *path; 427 unsigned char mac_addr[6]; 428 429 node = fdt_path_offset(fdt, "/aliases"); 430 if (node < 0) 431 return; 432 433 i = 0; 434 while ((tmp = getenv(mac)) != NULL) { 435 sprintf(enet, "ethernet%d", i); 436 path = fdt_getprop(fdt, node, enet, NULL); 437 if (!path) { 438 debug("No alias for %s\n", enet); 439 sprintf(mac, "eth%daddr", ++i); 440 continue; 441 } 442 443 for (j = 0; j < 6; j++) { 444 mac_addr[j] = tmp ? simple_strtoul(tmp, &end, 16) : 0; 445 if (tmp) 446 tmp = (*end) ? end+1 : end; 447 } 448 449 do_fixup_by_path(fdt, path, "mac-address", &mac_addr, 6, 0); 450 do_fixup_by_path(fdt, path, "local-mac-address", 451 &mac_addr, 6, 1); 452 453 sprintf(mac, "eth%daddr", ++i); 454 } 455 } 456 457 #ifdef CONFIG_HAS_FSL_DR_USB 458 void fdt_fixup_dr_usb(void *blob, bd_t *bd) 459 { 460 char *mode; 461 char *type; 462 const char *compat = "fsl-usb2-dr"; 463 const char *prop_mode = "dr_mode"; 464 const char *prop_type = "phy_type"; 465 int node_offset; 466 int err; 467 468 mode = getenv("usb_dr_mode"); 469 type = getenv("usb_phy_type"); 470 if (!mode && !type) 471 return; 472 473 node_offset = fdt_node_offset_by_compatible(blob, 0, compat); 474 if (node_offset < 0) { 475 printf("WARNING: could not find compatible node %s: %s.\n", 476 compat, fdt_strerror(node_offset)); 477 return; 478 } 479 480 if (mode) { 481 err = fdt_setprop(blob, node_offset, prop_mode, mode, 482 strlen(mode) + 1); 483 if (err < 0) 484 printf("WARNING: could not set %s for %s: %s.\n", 485 prop_mode, compat, fdt_strerror(err)); 486 } 487 488 if (type) { 489 err = fdt_setprop(blob, node_offset, prop_type, type, 490 strlen(type) + 1); 491 if (err < 0) 492 printf("WARNING: could not set %s for %s: %s.\n", 493 prop_type, compat, fdt_strerror(err)); 494 } 495 } 496 #endif /* CONFIG_HAS_FSL_DR_USB */ 497 498 #if defined(CONFIG_MPC83xx) || defined(CONFIG_MPC85xx) 499 /* 500 * update crypto node properties to a specified revision of the SEC 501 * called with sec_rev == 0 if not on an mpc8xxxE processor 502 */ 503 void fdt_fixup_crypto_node(void *blob, int sec_rev) 504 { 505 const struct sec_rev_prop { 506 u32 sec_rev; 507 u32 num_channels; 508 u32 channel_fifo_len; 509 u32 exec_units_mask; 510 u32 descriptor_types_mask; 511 } sec_rev_prop_list [] = { 512 { 0x0200, 4, 24, 0x07e, 0x01010ebf }, /* SEC 2.0 */ 513 { 0x0201, 4, 24, 0x0fe, 0x012b0ebf }, /* SEC 2.1 */ 514 { 0x0202, 1, 24, 0x04c, 0x0122003f }, /* SEC 2.2 */ 515 { 0x0204, 4, 24, 0x07e, 0x012b0ebf }, /* SEC 2.4 */ 516 { 0x0300, 4, 24, 0x9fe, 0x03ab0ebf }, /* SEC 3.0 */ 517 { 0x0303, 4, 24, 0x97c, 0x03ab0abf }, /* SEC 3.3 */ 518 }; 519 char compat_strlist[ARRAY_SIZE(sec_rev_prop_list) * 520 sizeof("fsl,secX.Y")]; 521 int crypto_node, sec_idx, err; 522 char *p; 523 u32 val; 524 525 /* locate crypto node based on lowest common compatible */ 526 crypto_node = fdt_node_offset_by_compatible(blob, -1, "fsl,sec2.0"); 527 if (crypto_node == -FDT_ERR_NOTFOUND) 528 return; 529 530 /* delete it if not on an E-processor */ 531 if (crypto_node > 0 && !sec_rev) { 532 fdt_del_node(blob, crypto_node); 533 return; 534 } 535 536 /* else we got called for possible uprev */ 537 for (sec_idx = 0; sec_idx < ARRAY_SIZE(sec_rev_prop_list); sec_idx++) 538 if (sec_rev_prop_list[sec_idx].sec_rev == sec_rev) 539 break; 540 541 if (sec_idx == ARRAY_SIZE(sec_rev_prop_list)) { 542 puts("warning: unknown SEC revision number\n"); 543 return; 544 } 545 546 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].num_channels); 547 err = fdt_setprop(blob, crypto_node, "fsl,num-channels", &val, 4); 548 if (err < 0) 549 printf("WARNING: could not set crypto property: %s\n", 550 fdt_strerror(err)); 551 552 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].descriptor_types_mask); 553 err = fdt_setprop(blob, crypto_node, "fsl,descriptor-types-mask", &val, 4); 554 if (err < 0) 555 printf("WARNING: could not set crypto property: %s\n", 556 fdt_strerror(err)); 557 558 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].exec_units_mask); 559 err = fdt_setprop(blob, crypto_node, "fsl,exec-units-mask", &val, 4); 560 if (err < 0) 561 printf("WARNING: could not set crypto property: %s\n", 562 fdt_strerror(err)); 563 564 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].channel_fifo_len); 565 err = fdt_setprop(blob, crypto_node, "fsl,channel-fifo-len", &val, 4); 566 if (err < 0) 567 printf("WARNING: could not set crypto property: %s\n", 568 fdt_strerror(err)); 569 570 val = 0; 571 while (sec_idx >= 0) { 572 p = compat_strlist + val; 573 val += sprintf(p, "fsl,sec%d.%d", 574 (sec_rev_prop_list[sec_idx].sec_rev & 0xff00) >> 8, 575 sec_rev_prop_list[sec_idx].sec_rev & 0x00ff) + 1; 576 sec_idx--; 577 } 578 err = fdt_setprop(blob, crypto_node, "compatible", &compat_strlist, val); 579 if (err < 0) 580 printf("WARNING: could not set crypto property: %s\n", 581 fdt_strerror(err)); 582 } 583 #endif /* defined(CONFIG_MPC83xx) || defined(CONFIG_MPC85xx) */ 584 585 /* Resize the fdt to its actual size + a bit of padding */ 586 int fdt_resize(void *blob) 587 { 588 int i; 589 uint64_t addr, size; 590 int total, ret; 591 uint actualsize; 592 593 if (!blob) 594 return 0; 595 596 total = fdt_num_mem_rsv(blob); 597 for (i = 0; i < total; i++) { 598 fdt_get_mem_rsv(blob, i, &addr, &size); 599 if (addr == (uint64_t)(u32)blob) { 600 fdt_del_mem_rsv(blob, i); 601 break; 602 } 603 } 604 605 /* 606 * Calculate the actual size of the fdt 607 * plus the size needed for fdt_add_mem_rsv 608 */ 609 actualsize = fdt_off_dt_strings(blob) + 610 fdt_size_dt_strings(blob) + sizeof(struct fdt_reserve_entry); 611 612 /* Make it so the fdt ends on a page boundary */ 613 actualsize = ALIGN(actualsize + ((uint)blob & 0xfff), 0x1000); 614 actualsize = actualsize - ((uint)blob & 0xfff); 615 616 /* Change the fdt header to reflect the correct size */ 617 fdt_set_totalsize(blob, actualsize); 618 619 /* Add the new reservation */ 620 ret = fdt_add_mem_rsv(blob, (uint)blob, actualsize); 621 if (ret < 0) 622 return ret; 623 624 return actualsize; 625 } 626 627 #ifdef CONFIG_PCI 628 #define CONFIG_SYS_PCI_NR_INBOUND_WIN 3 629 630 #define FDT_PCI_PREFETCH (0x40000000) 631 #define FDT_PCI_MEM32 (0x02000000) 632 #define FDT_PCI_IO (0x01000000) 633 #define FDT_PCI_MEM64 (0x03000000) 634 635 int fdt_pci_dma_ranges(void *blob, int phb_off, struct pci_controller *hose) { 636 637 int addrcell, sizecell, len, r; 638 u32 *dma_range; 639 /* sized based on pci addr cells, size-cells, & address-cells */ 640 u32 dma_ranges[(3 + 2 + 2) * CONFIG_SYS_PCI_NR_INBOUND_WIN]; 641 642 addrcell = fdt_getprop_u32_default(blob, "/", "#address-cells", 1); 643 sizecell = fdt_getprop_u32_default(blob, "/", "#size-cells", 1); 644 645 dma_range = &dma_ranges[0]; 646 for (r = 0; r < hose->region_count; r++) { 647 u64 bus_start, phys_start, size; 648 649 /* skip if !PCI_REGION_SYS_MEMORY */ 650 if (!(hose->regions[r].flags & PCI_REGION_SYS_MEMORY)) 651 continue; 652 653 bus_start = (u64)hose->regions[r].bus_start; 654 phys_start = (u64)hose->regions[r].phys_start; 655 size = (u64)hose->regions[r].size; 656 657 dma_range[0] = 0; 658 if (size > 0x100000000ull) 659 dma_range[0] |= FDT_PCI_MEM64; 660 else 661 dma_range[0] |= FDT_PCI_MEM32; 662 if (hose->regions[r].flags & PCI_REGION_PREFETCH) 663 dma_range[0] |= FDT_PCI_PREFETCH; 664 #ifdef CONFIG_SYS_PCI_64BIT 665 dma_range[1] = bus_start >> 32; 666 #else 667 dma_range[1] = 0; 668 #endif 669 dma_range[2] = bus_start & 0xffffffff; 670 671 if (addrcell == 2) { 672 dma_range[3] = phys_start >> 32; 673 dma_range[4] = phys_start & 0xffffffff; 674 } else { 675 dma_range[3] = phys_start & 0xffffffff; 676 } 677 678 if (sizecell == 2) { 679 dma_range[3 + addrcell + 0] = size >> 32; 680 dma_range[3 + addrcell + 1] = size & 0xffffffff; 681 } else { 682 dma_range[3 + addrcell + 0] = size & 0xffffffff; 683 } 684 685 dma_range += (3 + addrcell + sizecell); 686 } 687 688 len = dma_range - &dma_ranges[0]; 689 if (len) 690 fdt_setprop(blob, phb_off, "dma-ranges", &dma_ranges[0], len*4); 691 692 return 0; 693 } 694 #endif 695