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 <stdio_dev.h> 26 #include <linux/ctype.h> 27 #include <linux/types.h> 28 #include <asm/global_data.h> 29 #include <fdt.h> 30 #include <libfdt.h> 31 #include <fdt_support.h> 32 #include <exports.h> 33 34 /* 35 * Global data (for the gd->bd) 36 */ 37 DECLARE_GLOBAL_DATA_PTR; 38 39 /** 40 * fdt_getprop_u32_default - Find a node and return it's property or a default 41 * 42 * @fdt: ptr to device tree 43 * @path: path of node 44 * @prop: property name 45 * @dflt: default value if the property isn't found 46 * 47 * Convenience function to find a node and return it's property or a 48 * default value if it doesn't exist. 49 */ 50 u32 fdt_getprop_u32_default(void *fdt, const char *path, const char *prop, 51 const u32 dflt) 52 { 53 const u32 *val; 54 int off; 55 56 off = fdt_path_offset(fdt, path); 57 if (off < 0) 58 return dflt; 59 60 val = fdt_getprop(fdt, off, prop, NULL); 61 if (val) 62 return *val; 63 else 64 return dflt; 65 } 66 67 /** 68 * fdt_find_and_setprop: Find a node and set it's property 69 * 70 * @fdt: ptr to device tree 71 * @node: path of node 72 * @prop: property name 73 * @val: ptr to new value 74 * @len: length of new property value 75 * @create: flag to create the property if it doesn't exist 76 * 77 * Convenience function to directly set a property given the path to the node. 78 */ 79 int fdt_find_and_setprop(void *fdt, const char *node, const char *prop, 80 const void *val, int len, int create) 81 { 82 int nodeoff = fdt_path_offset(fdt, node); 83 84 if (nodeoff < 0) 85 return nodeoff; 86 87 if ((!create) && (fdt_get_property(fdt, nodeoff, prop, 0) == NULL)) 88 return 0; /* create flag not set; so exit quietly */ 89 90 return fdt_setprop(fdt, nodeoff, prop, val, len); 91 } 92 93 #ifdef CONFIG_OF_STDOUT_VIA_ALIAS 94 95 #ifdef CONFIG_SERIAL_MULTI 96 static void fdt_fill_multisername(char *sername, size_t maxlen) 97 { 98 const char *outname = stdio_devices[stdout]->name; 99 100 if (strcmp(outname, "serial") > 0) 101 strncpy(sername, outname, maxlen); 102 103 /* eserial? */ 104 if (strcmp(outname + 1, "serial") > 0) 105 strncpy(sername, outname + 1, maxlen); 106 } 107 #else 108 static inline void fdt_fill_multisername(char *sername, size_t maxlen) {} 109 #endif /* CONFIG_SERIAL_MULTI */ 110 111 static int fdt_fixup_stdout(void *fdt, int chosenoff) 112 { 113 int err = 0; 114 #ifdef CONFIG_CONS_INDEX 115 int node; 116 char sername[9] = { 0 }; 117 const char *path; 118 119 fdt_fill_multisername(sername, sizeof(sername) - 1); 120 if (!sername[0]) 121 sprintf(sername, "serial%d", CONFIG_CONS_INDEX - 1); 122 123 err = node = fdt_path_offset(fdt, "/aliases"); 124 if (node >= 0) { 125 int len; 126 path = fdt_getprop(fdt, node, sername, &len); 127 if (path) { 128 char *p = malloc(len); 129 err = -FDT_ERR_NOSPACE; 130 if (p) { 131 memcpy(p, path, len); 132 err = fdt_setprop(fdt, chosenoff, 133 "linux,stdout-path", p, len); 134 free(p); 135 } 136 } else { 137 err = len; 138 } 139 } 140 #endif 141 if (err < 0) 142 printf("WARNING: could not set linux,stdout-path %s.\n", 143 fdt_strerror(err)); 144 145 return err; 146 } 147 #endif 148 149 int fdt_initrd(void *fdt, ulong initrd_start, ulong initrd_end, int force) 150 { 151 int nodeoffset; 152 int err, j, total; 153 u32 tmp; 154 const char *path; 155 uint64_t addr, size; 156 157 /* Find the "chosen" node. */ 158 nodeoffset = fdt_path_offset (fdt, "/chosen"); 159 160 /* If there is no "chosen" node in the blob return */ 161 if (nodeoffset < 0) { 162 printf("fdt_initrd: %s\n", fdt_strerror(nodeoffset)); 163 return nodeoffset; 164 } 165 166 /* just return if initrd_start/end aren't valid */ 167 if ((initrd_start == 0) || (initrd_end == 0)) 168 return 0; 169 170 total = fdt_num_mem_rsv(fdt); 171 172 /* 173 * Look for an existing entry and update it. If we don't find 174 * the entry, we will j be the next available slot. 175 */ 176 for (j = 0; j < total; j++) { 177 err = fdt_get_mem_rsv(fdt, j, &addr, &size); 178 if (addr == initrd_start) { 179 fdt_del_mem_rsv(fdt, j); 180 break; 181 } 182 } 183 184 err = fdt_add_mem_rsv(fdt, initrd_start, initrd_end - initrd_start + 1); 185 if (err < 0) { 186 printf("fdt_initrd: %s\n", fdt_strerror(err)); 187 return err; 188 } 189 190 path = fdt_getprop(fdt, nodeoffset, "linux,initrd-start", NULL); 191 if ((path == NULL) || force) { 192 tmp = __cpu_to_be32(initrd_start); 193 err = fdt_setprop(fdt, nodeoffset, 194 "linux,initrd-start", &tmp, sizeof(tmp)); 195 if (err < 0) { 196 printf("WARNING: " 197 "could not set linux,initrd-start %s.\n", 198 fdt_strerror(err)); 199 return err; 200 } 201 tmp = __cpu_to_be32(initrd_end); 202 err = fdt_setprop(fdt, nodeoffset, 203 "linux,initrd-end", &tmp, sizeof(tmp)); 204 if (err < 0) { 205 printf("WARNING: could not set linux,initrd-end %s.\n", 206 fdt_strerror(err)); 207 208 return err; 209 } 210 } 211 212 return 0; 213 } 214 215 int fdt_chosen(void *fdt, int force) 216 { 217 int nodeoffset; 218 int err; 219 char *str; /* used to set string properties */ 220 const char *path; 221 222 err = fdt_check_header(fdt); 223 if (err < 0) { 224 printf("fdt_chosen: %s\n", fdt_strerror(err)); 225 return err; 226 } 227 228 /* 229 * Find the "chosen" node. 230 */ 231 nodeoffset = fdt_path_offset (fdt, "/chosen"); 232 233 /* 234 * If there is no "chosen" node in the blob, create it. 235 */ 236 if (nodeoffset < 0) { 237 /* 238 * Create a new node "/chosen" (offset 0 is root level) 239 */ 240 nodeoffset = fdt_add_subnode(fdt, 0, "chosen"); 241 if (nodeoffset < 0) { 242 printf("WARNING: could not create /chosen %s.\n", 243 fdt_strerror(nodeoffset)); 244 return nodeoffset; 245 } 246 } 247 248 /* 249 * Create /chosen properites that don't exist in the fdt. 250 * If the property exists, update it only if the "force" parameter 251 * is true. 252 */ 253 str = getenv("bootargs"); 254 if (str != NULL) { 255 path = fdt_getprop(fdt, nodeoffset, "bootargs", NULL); 256 if ((path == NULL) || force) { 257 err = fdt_setprop(fdt, nodeoffset, 258 "bootargs", str, strlen(str)+1); 259 if (err < 0) 260 printf("WARNING: could not set bootargs %s.\n", 261 fdt_strerror(err)); 262 } 263 } 264 265 #ifdef CONFIG_OF_STDOUT_VIA_ALIAS 266 path = fdt_getprop(fdt, nodeoffset, "linux,stdout-path", NULL); 267 if ((path == NULL) || force) 268 err = fdt_fixup_stdout(fdt, nodeoffset); 269 #endif 270 271 #ifdef OF_STDOUT_PATH 272 path = fdt_getprop(fdt, nodeoffset, "linux,stdout-path", NULL); 273 if ((path == NULL) || force) { 274 err = fdt_setprop(fdt, nodeoffset, 275 "linux,stdout-path", OF_STDOUT_PATH, strlen(OF_STDOUT_PATH)+1); 276 if (err < 0) 277 printf("WARNING: could not set linux,stdout-path %s.\n", 278 fdt_strerror(err)); 279 } 280 #endif 281 282 return err; 283 } 284 285 void do_fixup_by_path(void *fdt, const char *path, const char *prop, 286 const void *val, int len, int create) 287 { 288 #if defined(DEBUG) 289 int i; 290 debug("Updating property '%s/%s' = ", path, prop); 291 for (i = 0; i < len; i++) 292 debug(" %.2x", *(u8*)(val+i)); 293 debug("\n"); 294 #endif 295 int rc = fdt_find_and_setprop(fdt, path, prop, val, len, create); 296 if (rc) 297 printf("Unable to update property %s:%s, err=%s\n", 298 path, prop, fdt_strerror(rc)); 299 } 300 301 void do_fixup_by_path_u32(void *fdt, const char *path, const char *prop, 302 u32 val, int create) 303 { 304 val = cpu_to_fdt32(val); 305 do_fixup_by_path(fdt, path, prop, &val, sizeof(val), create); 306 } 307 308 void do_fixup_by_prop(void *fdt, 309 const char *pname, const void *pval, int plen, 310 const char *prop, const void *val, int len, 311 int create) 312 { 313 int off; 314 #if defined(DEBUG) 315 int i; 316 debug("Updating property '%s' = ", prop); 317 for (i = 0; i < len; i++) 318 debug(" %.2x", *(u8*)(val+i)); 319 debug("\n"); 320 #endif 321 off = fdt_node_offset_by_prop_value(fdt, -1, pname, pval, plen); 322 while (off != -FDT_ERR_NOTFOUND) { 323 if (create || (fdt_get_property(fdt, off, prop, 0) != NULL)) 324 fdt_setprop(fdt, off, prop, val, len); 325 off = fdt_node_offset_by_prop_value(fdt, off, pname, pval, plen); 326 } 327 } 328 329 void do_fixup_by_prop_u32(void *fdt, 330 const char *pname, const void *pval, int plen, 331 const char *prop, u32 val, int create) 332 { 333 val = cpu_to_fdt32(val); 334 do_fixup_by_prop(fdt, pname, pval, plen, prop, &val, 4, create); 335 } 336 337 void do_fixup_by_compat(void *fdt, const char *compat, 338 const char *prop, const void *val, int len, int create) 339 { 340 int off = -1; 341 #if defined(DEBUG) 342 int i; 343 debug("Updating property '%s' = ", prop); 344 for (i = 0; i < len; i++) 345 debug(" %.2x", *(u8*)(val+i)); 346 debug("\n"); 347 #endif 348 off = fdt_node_offset_by_compatible(fdt, -1, compat); 349 while (off != -FDT_ERR_NOTFOUND) { 350 if (create || (fdt_get_property(fdt, off, prop, 0) != NULL)) 351 fdt_setprop(fdt, off, prop, val, len); 352 off = fdt_node_offset_by_compatible(fdt, off, compat); 353 } 354 } 355 356 void do_fixup_by_compat_u32(void *fdt, const char *compat, 357 const char *prop, u32 val, int create) 358 { 359 val = cpu_to_fdt32(val); 360 do_fixup_by_compat(fdt, compat, prop, &val, 4, create); 361 } 362 363 int fdt_fixup_memory(void *blob, u64 start, u64 size) 364 { 365 int err, nodeoffset, len = 0; 366 u8 tmp[16]; 367 const u32 *addrcell, *sizecell; 368 369 err = fdt_check_header(blob); 370 if (err < 0) { 371 printf("%s: %s\n", __FUNCTION__, fdt_strerror(err)); 372 return err; 373 } 374 375 /* update, or add and update /memory node */ 376 nodeoffset = fdt_path_offset(blob, "/memory"); 377 if (nodeoffset < 0) { 378 nodeoffset = fdt_add_subnode(blob, 0, "memory"); 379 if (nodeoffset < 0) 380 printf("WARNING: could not create /memory: %s.\n", 381 fdt_strerror(nodeoffset)); 382 return nodeoffset; 383 } 384 err = fdt_setprop(blob, nodeoffset, "device_type", "memory", 385 sizeof("memory")); 386 if (err < 0) { 387 printf("WARNING: could not set %s %s.\n", "device_type", 388 fdt_strerror(err)); 389 return err; 390 } 391 392 addrcell = fdt_getprop(blob, 0, "#address-cells", NULL); 393 /* use shifts and mask to ensure endianness */ 394 if ((addrcell) && (*addrcell == 2)) { 395 tmp[0] = (start >> 56) & 0xff; 396 tmp[1] = (start >> 48) & 0xff; 397 tmp[2] = (start >> 40) & 0xff; 398 tmp[3] = (start >> 32) & 0xff; 399 tmp[4] = (start >> 24) & 0xff; 400 tmp[5] = (start >> 16) & 0xff; 401 tmp[6] = (start >> 8) & 0xff; 402 tmp[7] = (start ) & 0xff; 403 len = 8; 404 } else { 405 tmp[0] = (start >> 24) & 0xff; 406 tmp[1] = (start >> 16) & 0xff; 407 tmp[2] = (start >> 8) & 0xff; 408 tmp[3] = (start ) & 0xff; 409 len = 4; 410 } 411 412 sizecell = fdt_getprop(blob, 0, "#size-cells", NULL); 413 /* use shifts and mask to ensure endianness */ 414 if ((sizecell) && (*sizecell == 2)) { 415 tmp[0+len] = (size >> 56) & 0xff; 416 tmp[1+len] = (size >> 48) & 0xff; 417 tmp[2+len] = (size >> 40) & 0xff; 418 tmp[3+len] = (size >> 32) & 0xff; 419 tmp[4+len] = (size >> 24) & 0xff; 420 tmp[5+len] = (size >> 16) & 0xff; 421 tmp[6+len] = (size >> 8) & 0xff; 422 tmp[7+len] = (size ) & 0xff; 423 len += 8; 424 } else { 425 tmp[0+len] = (size >> 24) & 0xff; 426 tmp[1+len] = (size >> 16) & 0xff; 427 tmp[2+len] = (size >> 8) & 0xff; 428 tmp[3+len] = (size ) & 0xff; 429 len += 4; 430 } 431 432 err = fdt_setprop(blob, nodeoffset, "reg", tmp, len); 433 if (err < 0) { 434 printf("WARNING: could not set %s %s.\n", 435 "reg", fdt_strerror(err)); 436 return err; 437 } 438 return 0; 439 } 440 441 void fdt_fixup_ethernet(void *fdt) 442 { 443 int node, i, j; 444 char enet[16], *tmp, *end; 445 char mac[16] = "ethaddr"; 446 const char *path; 447 unsigned char mac_addr[6]; 448 449 node = fdt_path_offset(fdt, "/aliases"); 450 if (node < 0) 451 return; 452 453 i = 0; 454 while ((tmp = getenv(mac)) != NULL) { 455 sprintf(enet, "ethernet%d", i); 456 path = fdt_getprop(fdt, node, enet, NULL); 457 if (!path) { 458 debug("No alias for %s\n", enet); 459 sprintf(mac, "eth%daddr", ++i); 460 continue; 461 } 462 463 for (j = 0; j < 6; j++) { 464 mac_addr[j] = tmp ? simple_strtoul(tmp, &end, 16) : 0; 465 if (tmp) 466 tmp = (*end) ? end+1 : end; 467 } 468 469 do_fixup_by_path(fdt, path, "mac-address", &mac_addr, 6, 0); 470 do_fixup_by_path(fdt, path, "local-mac-address", 471 &mac_addr, 6, 1); 472 473 sprintf(mac, "eth%daddr", ++i); 474 } 475 } 476 477 #ifdef CONFIG_HAS_FSL_DR_USB 478 void fdt_fixup_dr_usb(void *blob, bd_t *bd) 479 { 480 char *mode; 481 char *type; 482 const char *compat = "fsl-usb2-dr"; 483 const char *prop_mode = "dr_mode"; 484 const char *prop_type = "phy_type"; 485 int node_offset; 486 int err; 487 488 mode = getenv("usb_dr_mode"); 489 type = getenv("usb_phy_type"); 490 if (!mode && !type) 491 return; 492 493 node_offset = fdt_node_offset_by_compatible(blob, 0, compat); 494 if (node_offset < 0) { 495 printf("WARNING: could not find compatible node %s: %s.\n", 496 compat, fdt_strerror(node_offset)); 497 return; 498 } 499 500 if (mode) { 501 err = fdt_setprop(blob, node_offset, prop_mode, mode, 502 strlen(mode) + 1); 503 if (err < 0) 504 printf("WARNING: could not set %s for %s: %s.\n", 505 prop_mode, compat, fdt_strerror(err)); 506 } 507 508 if (type) { 509 err = fdt_setprop(blob, node_offset, prop_type, type, 510 strlen(type) + 1); 511 if (err < 0) 512 printf("WARNING: could not set %s for %s: %s.\n", 513 prop_type, compat, fdt_strerror(err)); 514 } 515 } 516 #endif /* CONFIG_HAS_FSL_DR_USB */ 517 518 #if defined(CONFIG_MPC83xx) || defined(CONFIG_MPC85xx) 519 /* 520 * update crypto node properties to a specified revision of the SEC 521 * called with sec_rev == 0 if not on an mpc8xxxE processor 522 */ 523 void fdt_fixup_crypto_node(void *blob, int sec_rev) 524 { 525 const struct sec_rev_prop { 526 u32 sec_rev; 527 u32 num_channels; 528 u32 channel_fifo_len; 529 u32 exec_units_mask; 530 u32 descriptor_types_mask; 531 } sec_rev_prop_list [] = { 532 { 0x0200, 4, 24, 0x07e, 0x01010ebf }, /* SEC 2.0 */ 533 { 0x0201, 4, 24, 0x0fe, 0x012b0ebf }, /* SEC 2.1 */ 534 { 0x0202, 1, 24, 0x04c, 0x0122003f }, /* SEC 2.2 */ 535 { 0x0204, 4, 24, 0x07e, 0x012b0ebf }, /* SEC 2.4 */ 536 { 0x0300, 4, 24, 0x9fe, 0x03ab0ebf }, /* SEC 3.0 */ 537 { 0x0301, 4, 24, 0xbfe, 0x03ab0ebf }, /* SEC 3.1 */ 538 { 0x0303, 4, 24, 0x97c, 0x03a30abf }, /* SEC 3.3 */ 539 }; 540 char compat_strlist[ARRAY_SIZE(sec_rev_prop_list) * 541 sizeof("fsl,secX.Y")]; 542 int crypto_node, sec_idx, err; 543 char *p; 544 u32 val; 545 546 /* locate crypto node based on lowest common compatible */ 547 crypto_node = fdt_node_offset_by_compatible(blob, -1, "fsl,sec2.0"); 548 if (crypto_node == -FDT_ERR_NOTFOUND) 549 return; 550 551 /* delete it if not on an E-processor */ 552 if (crypto_node > 0 && !sec_rev) { 553 fdt_del_node(blob, crypto_node); 554 return; 555 } 556 557 /* else we got called for possible uprev */ 558 for (sec_idx = 0; sec_idx < ARRAY_SIZE(sec_rev_prop_list); sec_idx++) 559 if (sec_rev_prop_list[sec_idx].sec_rev == sec_rev) 560 break; 561 562 if (sec_idx == ARRAY_SIZE(sec_rev_prop_list)) { 563 puts("warning: unknown SEC revision number\n"); 564 return; 565 } 566 567 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].num_channels); 568 err = fdt_setprop(blob, crypto_node, "fsl,num-channels", &val, 4); 569 if (err < 0) 570 printf("WARNING: could not set crypto property: %s\n", 571 fdt_strerror(err)); 572 573 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].descriptor_types_mask); 574 err = fdt_setprop(blob, crypto_node, "fsl,descriptor-types-mask", &val, 4); 575 if (err < 0) 576 printf("WARNING: could not set crypto property: %s\n", 577 fdt_strerror(err)); 578 579 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].exec_units_mask); 580 err = fdt_setprop(blob, crypto_node, "fsl,exec-units-mask", &val, 4); 581 if (err < 0) 582 printf("WARNING: could not set crypto property: %s\n", 583 fdt_strerror(err)); 584 585 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].channel_fifo_len); 586 err = fdt_setprop(blob, crypto_node, "fsl,channel-fifo-len", &val, 4); 587 if (err < 0) 588 printf("WARNING: could not set crypto property: %s\n", 589 fdt_strerror(err)); 590 591 val = 0; 592 while (sec_idx >= 0) { 593 p = compat_strlist + val; 594 val += sprintf(p, "fsl,sec%d.%d", 595 (sec_rev_prop_list[sec_idx].sec_rev & 0xff00) >> 8, 596 sec_rev_prop_list[sec_idx].sec_rev & 0x00ff) + 1; 597 sec_idx--; 598 } 599 err = fdt_setprop(blob, crypto_node, "compatible", &compat_strlist, val); 600 if (err < 0) 601 printf("WARNING: could not set crypto property: %s\n", 602 fdt_strerror(err)); 603 } 604 #endif /* defined(CONFIG_MPC83xx) || defined(CONFIG_MPC85xx) */ 605 606 /* Resize the fdt to its actual size + a bit of padding */ 607 int fdt_resize(void *blob) 608 { 609 int i; 610 uint64_t addr, size; 611 int total, ret; 612 uint actualsize; 613 614 if (!blob) 615 return 0; 616 617 total = fdt_num_mem_rsv(blob); 618 for (i = 0; i < total; i++) { 619 fdt_get_mem_rsv(blob, i, &addr, &size); 620 if (addr == (uint64_t)(u32)blob) { 621 fdt_del_mem_rsv(blob, i); 622 break; 623 } 624 } 625 626 /* 627 * Calculate the actual size of the fdt 628 * plus the size needed for two fdt_add_mem_rsv, one 629 * for the fdt itself and one for a possible initrd 630 */ 631 actualsize = fdt_off_dt_strings(blob) + 632 fdt_size_dt_strings(blob) + 2*sizeof(struct fdt_reserve_entry); 633 634 /* Make it so the fdt ends on a page boundary */ 635 actualsize = ALIGN(actualsize + ((uint)blob & 0xfff), 0x1000); 636 actualsize = actualsize - ((uint)blob & 0xfff); 637 638 /* Change the fdt header to reflect the correct size */ 639 fdt_set_totalsize(blob, actualsize); 640 641 /* Add the new reservation */ 642 ret = fdt_add_mem_rsv(blob, (uint)blob, actualsize); 643 if (ret < 0) 644 return ret; 645 646 return actualsize; 647 } 648 649 #ifdef CONFIG_PCI 650 #define CONFIG_SYS_PCI_NR_INBOUND_WIN 4 651 652 #define FDT_PCI_PREFETCH (0x40000000) 653 #define FDT_PCI_MEM32 (0x02000000) 654 #define FDT_PCI_IO (0x01000000) 655 #define FDT_PCI_MEM64 (0x03000000) 656 657 int fdt_pci_dma_ranges(void *blob, int phb_off, struct pci_controller *hose) { 658 659 int addrcell, sizecell, len, r; 660 u32 *dma_range; 661 /* sized based on pci addr cells, size-cells, & address-cells */ 662 u32 dma_ranges[(3 + 2 + 2) * CONFIG_SYS_PCI_NR_INBOUND_WIN]; 663 664 addrcell = fdt_getprop_u32_default(blob, "/", "#address-cells", 1); 665 sizecell = fdt_getprop_u32_default(blob, "/", "#size-cells", 1); 666 667 dma_range = &dma_ranges[0]; 668 for (r = 0; r < hose->region_count; r++) { 669 u64 bus_start, phys_start, size; 670 671 /* skip if !PCI_REGION_SYS_MEMORY */ 672 if (!(hose->regions[r].flags & PCI_REGION_SYS_MEMORY)) 673 continue; 674 675 bus_start = (u64)hose->regions[r].bus_start; 676 phys_start = (u64)hose->regions[r].phys_start; 677 size = (u64)hose->regions[r].size; 678 679 dma_range[0] = 0; 680 if (size >= 0x100000000ull) 681 dma_range[0] |= FDT_PCI_MEM64; 682 else 683 dma_range[0] |= FDT_PCI_MEM32; 684 if (hose->regions[r].flags & PCI_REGION_PREFETCH) 685 dma_range[0] |= FDT_PCI_PREFETCH; 686 #ifdef CONFIG_SYS_PCI_64BIT 687 dma_range[1] = bus_start >> 32; 688 #else 689 dma_range[1] = 0; 690 #endif 691 dma_range[2] = bus_start & 0xffffffff; 692 693 if (addrcell == 2) { 694 dma_range[3] = phys_start >> 32; 695 dma_range[4] = phys_start & 0xffffffff; 696 } else { 697 dma_range[3] = phys_start & 0xffffffff; 698 } 699 700 if (sizecell == 2) { 701 dma_range[3 + addrcell + 0] = size >> 32; 702 dma_range[3 + addrcell + 1] = size & 0xffffffff; 703 } else { 704 dma_range[3 + addrcell + 0] = size & 0xffffffff; 705 } 706 707 dma_range += (3 + addrcell + sizecell); 708 } 709 710 len = dma_range - &dma_ranges[0]; 711 if (len) 712 fdt_setprop(blob, phb_off, "dma-ranges", &dma_ranges[0], len*4); 713 714 return 0; 715 } 716 #endif 717 718 #ifdef CONFIG_FDT_FIXUP_NOR_FLASH_SIZE 719 /* 720 * This function can be used to update the size in the "reg" property 721 * of the NOR FLASH device nodes. This is necessary for boards with 722 * non-fixed NOR FLASH sizes. 723 */ 724 int fdt_fixup_nor_flash_size(void *blob, int cs, u32 size) 725 { 726 char compat[][16] = { "cfi-flash", "jedec-flash" }; 727 int off; 728 int len; 729 struct fdt_property *prop; 730 u32 *reg; 731 int i; 732 733 for (i = 0; i < 2; i++) { 734 off = fdt_node_offset_by_compatible(blob, -1, compat[i]); 735 while (off != -FDT_ERR_NOTFOUND) { 736 /* 737 * Found one compatible node, now check if this one 738 * has the correct CS 739 */ 740 prop = fdt_get_property_w(blob, off, "reg", &len); 741 if (prop) { 742 reg = (u32 *)&prop->data[0]; 743 if (reg[0] == cs) { 744 reg[2] = size; 745 fdt_setprop(blob, off, "reg", reg, 746 3 * sizeof(u32)); 747 748 return 0; 749 } 750 } 751 752 /* Move to next compatible node */ 753 off = fdt_node_offset_by_compatible(blob, off, 754 compat[i]); 755 } 756 } 757 758 return -1; 759 } 760 #endif 761 762 #ifdef CONFIG_FDT_FIXUP_PARTITIONS 763 #include <jffs2/load_kernel.h> 764 #include <mtd_node.h> 765 766 struct reg_cell { 767 unsigned int r0; 768 unsigned int r1; 769 }; 770 771 int fdt_del_subnodes(const void *blob, int parent_offset) 772 { 773 int off, ndepth; 774 int ret; 775 776 for (ndepth = 0, off = fdt_next_node(blob, parent_offset, &ndepth); 777 (off >= 0) && (ndepth > 0); 778 off = fdt_next_node(blob, off, &ndepth)) { 779 if (ndepth == 1) { 780 debug("delete %s: offset: %x\n", 781 fdt_get_name(blob, off, 0), off); 782 ret = fdt_del_node((void *)blob, off); 783 if (ret < 0) { 784 printf("Can't delete node: %s\n", 785 fdt_strerror(ret)); 786 return ret; 787 } else { 788 ndepth = 0; 789 off = parent_offset; 790 } 791 } 792 } 793 return 0; 794 } 795 796 int fdt_increase_size(void *fdt, int add_len) 797 { 798 int newlen; 799 800 newlen = fdt_totalsize(fdt) + add_len; 801 802 /* Open in place with a new len */ 803 return fdt_open_into(fdt, fdt, newlen); 804 } 805 806 int fdt_del_partitions(void *blob, int parent_offset) 807 { 808 const void *prop; 809 int ndepth = 0; 810 int off; 811 int ret; 812 813 off = fdt_next_node(blob, parent_offset, &ndepth); 814 if (off > 0 && ndepth == 1) { 815 prop = fdt_getprop(blob, off, "label", NULL); 816 if (prop == NULL) { 817 /* 818 * Could not find label property, nand {}; node? 819 * Check subnode, delete partitions there if any. 820 */ 821 return fdt_del_partitions(blob, off); 822 } else { 823 ret = fdt_del_subnodes(blob, parent_offset); 824 if (ret < 0) { 825 printf("Can't remove subnodes: %s\n", 826 fdt_strerror(ret)); 827 return ret; 828 } 829 } 830 } 831 return 0; 832 } 833 834 int fdt_node_set_part_info(void *blob, int parent_offset, 835 struct mtd_device *dev) 836 { 837 struct list_head *pentry; 838 struct part_info *part; 839 struct reg_cell cell; 840 int off, ndepth = 0; 841 int part_num, ret; 842 char buf[64]; 843 844 ret = fdt_del_partitions(blob, parent_offset); 845 if (ret < 0) 846 return ret; 847 848 /* 849 * Check if it is nand {}; subnode, adjust 850 * the offset in this case 851 */ 852 off = fdt_next_node(blob, parent_offset, &ndepth); 853 if (off > 0 && ndepth == 1) 854 parent_offset = off; 855 856 part_num = 0; 857 list_for_each_prev(pentry, &dev->parts) { 858 int newoff; 859 860 part = list_entry(pentry, struct part_info, link); 861 862 debug("%2d: %-20s0x%08x\t0x%08x\t%d\n", 863 part_num, part->name, part->size, 864 part->offset, part->mask_flags); 865 866 sprintf(buf, "partition@%x", part->offset); 867 add_sub: 868 ret = fdt_add_subnode(blob, parent_offset, buf); 869 if (ret == -FDT_ERR_NOSPACE) { 870 ret = fdt_increase_size(blob, 512); 871 if (!ret) 872 goto add_sub; 873 else 874 goto err_size; 875 } else if (ret < 0) { 876 printf("Can't add partition node: %s\n", 877 fdt_strerror(ret)); 878 return ret; 879 } 880 newoff = ret; 881 882 /* Check MTD_WRITEABLE_CMD flag */ 883 if (part->mask_flags & 1) { 884 add_ro: 885 ret = fdt_setprop(blob, newoff, "read_only", NULL, 0); 886 if (ret == -FDT_ERR_NOSPACE) { 887 ret = fdt_increase_size(blob, 512); 888 if (!ret) 889 goto add_ro; 890 else 891 goto err_size; 892 } else if (ret < 0) 893 goto err_prop; 894 } 895 896 cell.r0 = cpu_to_fdt32(part->offset); 897 cell.r1 = cpu_to_fdt32(part->size); 898 add_reg: 899 ret = fdt_setprop(blob, newoff, "reg", &cell, sizeof(cell)); 900 if (ret == -FDT_ERR_NOSPACE) { 901 ret = fdt_increase_size(blob, 512); 902 if (!ret) 903 goto add_reg; 904 else 905 goto err_size; 906 } else if (ret < 0) 907 goto err_prop; 908 909 add_label: 910 ret = fdt_setprop_string(blob, newoff, "label", part->name); 911 if (ret == -FDT_ERR_NOSPACE) { 912 ret = fdt_increase_size(blob, 512); 913 if (!ret) 914 goto add_label; 915 else 916 goto err_size; 917 } else if (ret < 0) 918 goto err_prop; 919 920 part_num++; 921 } 922 return 0; 923 err_size: 924 printf("Can't increase blob size: %s\n", fdt_strerror(ret)); 925 return ret; 926 err_prop: 927 printf("Can't add property: %s\n", fdt_strerror(ret)); 928 return ret; 929 } 930 931 /* 932 * Update partitions in nor/nand nodes using info from 933 * mtdparts environment variable. The nodes to update are 934 * specified by node_info structure which contains mtd device 935 * type and compatible string: E. g. the board code in 936 * ft_board_setup() could use: 937 * 938 * struct node_info nodes[] = { 939 * { "fsl,mpc5121-nfc", MTD_DEV_TYPE_NAND, }, 940 * { "cfi-flash", MTD_DEV_TYPE_NOR, }, 941 * }; 942 * 943 * fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes)); 944 */ 945 void fdt_fixup_mtdparts(void *blob, void *node_info, int node_info_size) 946 { 947 struct node_info *ni = node_info; 948 struct mtd_device *dev; 949 char *parts; 950 int i, idx; 951 int noff; 952 953 parts = getenv("mtdparts"); 954 if (!parts) 955 return; 956 957 if (mtdparts_init() != 0) 958 return; 959 960 for (i = 0; i < node_info_size; i++) { 961 idx = 0; 962 noff = fdt_node_offset_by_compatible(blob, -1, ni[i].compat); 963 while (noff != -FDT_ERR_NOTFOUND) { 964 debug("%s: %s, mtd dev type %d\n", 965 fdt_get_name(blob, noff, 0), 966 ni[i].compat, ni[i].type); 967 dev = device_find(ni[i].type, idx++); 968 if (dev) { 969 if (fdt_node_set_part_info(blob, noff, dev)) 970 return; /* return on error */ 971 } 972 973 /* Jump to next flash node */ 974 noff = fdt_node_offset_by_compatible(blob, noff, 975 ni[i].compat); 976 } 977 } 978 } 979 #endif 980 981 void fdt_del_node_and_alias(void *blob, const char *alias) 982 { 983 int off = fdt_path_offset(blob, alias); 984 985 if (off < 0) 986 return; 987 988 fdt_del_node(blob, off); 989 990 off = fdt_path_offset(blob, "/aliases"); 991 fdt_delprop(blob, off, alias); 992 } 993