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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 | /* * Motorola ECC prpmc280/f101 & prpmc2800/f101e platform code. * * Author: Mark A. Greer <mgreer@mvista.com> * * 2007 (c) MontaVista, Software, Inc. This file is licensed under * the terms of the GNU General Public License version 2. This program * is licensed "as is" without any warranty of any kind, whether express * or implied. */ #include <stdarg.h> #include <stddef.h> #include "types.h" #include "elf.h" #include "page.h" #include "string.h" #include "stdio.h" #include "io.h" #include "ops.h" #include "gunzip_util.h" #include "mv64x60.h" #define KB 1024U #define MB (KB*KB) #define GB (KB*MB) #define MHz (1000U*1000U) #define GHz (1000U*MHz) #define BOARD_MODEL "PrPMC2800" #define BOARD_MODEL_MAX 32 /* max strlen(BOARD_MODEL) + 1 */ #define EEPROM2_ADDR 0xa4 #define EEPROM3_ADDR 0xa8 BSS_STACK(16*KB); static u8 *bridge_base; typedef enum { BOARD_MODEL_PRPMC280, BOARD_MODEL_PRPMC2800, } prpmc2800_board_model; typedef enum { BRIDGE_TYPE_MV64360, BRIDGE_TYPE_MV64362, } prpmc2800_bridge_type; struct prpmc2800_board_info { prpmc2800_board_model model; char variant; prpmc2800_bridge_type bridge_type; u8 subsys0; u8 subsys1; u8 vpd4; u8 vpd4_mask; u32 core_speed; u32 mem_size; u32 boot_flash; u32 user_flash; }; static struct prpmc2800_board_info prpmc2800_board_info[] = { { .model = BOARD_MODEL_PRPMC280, .variant = 'a', .bridge_type = BRIDGE_TYPE_MV64360, .subsys0 = 0xff, .subsys1 = 0xff, .vpd4 = 0x00, .vpd4_mask = 0x0f, .core_speed = 1*GHz, .mem_size = 512*MB, .boot_flash = 1*MB, .user_flash = 64*MB, }, { .model = BOARD_MODEL_PRPMC280, .variant = 'b', .bridge_type = BRIDGE_TYPE_MV64362, .subsys0 = 0xff, .subsys1 = 0xff, .vpd4 = 0x01, .vpd4_mask = 0x0f, .core_speed = 1*GHz, .mem_size = 512*MB, .boot_flash = 0, .user_flash = 0, }, { .model = BOARD_MODEL_PRPMC280, .variant = 'c', .bridge_type = BRIDGE_TYPE_MV64360, .subsys0 = 0xff, .subsys1 = 0xff, .vpd4 = 0x02, .vpd4_mask = 0x0f, .core_speed = 733*MHz, .mem_size = 512*MB, .boot_flash = 1*MB, .user_flash = 64*MB, }, { .model = BOARD_MODEL_PRPMC280, .variant = 'd', .bridge_type = BRIDGE_TYPE_MV64360, .subsys0 = 0xff, .subsys1 = 0xff, .vpd4 = 0x03, .vpd4_mask = 0x0f, .core_speed = 1*GHz, .mem_size = 1*GB, .boot_flash = 1*MB, .user_flash = 64*MB, }, { .model = BOARD_MODEL_PRPMC280, .variant = 'e', .bridge_type = BRIDGE_TYPE_MV64360, .subsys0 = 0xff, .subsys1 = 0xff, .vpd4 = 0x04, .vpd4_mask = 0x0f, .core_speed = 1*GHz, .mem_size = 512*MB, .boot_flash = 1*MB, .user_flash = 64*MB, }, { .model = BOARD_MODEL_PRPMC280, .variant = 'f', .bridge_type = BRIDGE_TYPE_MV64362, .subsys0 = 0xff, .subsys1 = 0xff, .vpd4 = 0x05, .vpd4_mask = 0x0f, .core_speed = 733*MHz, .mem_size = 128*MB, .boot_flash = 1*MB, .user_flash = 0, }, { .model = BOARD_MODEL_PRPMC280, .variant = 'g', .bridge_type = BRIDGE_TYPE_MV64360, .subsys0 = 0xff, .subsys1 = 0xff, .vpd4 = 0x06, .vpd4_mask = 0x0f, .core_speed = 1*GHz, .mem_size = 256*MB, .boot_flash = 1*MB, .user_flash = 0, }, { .model = BOARD_MODEL_PRPMC280, .variant = 'h', .bridge_type = BRIDGE_TYPE_MV64360, .subsys0 = 0xff, .subsys1 = 0xff, .vpd4 = 0x07, .vpd4_mask = 0x0f, .core_speed = 1*GHz, .mem_size = 1*GB, .boot_flash = 1*MB, .user_flash = 64*MB, }, { .model = BOARD_MODEL_PRPMC2800, .variant = 'a', .bridge_type = BRIDGE_TYPE_MV64360, .subsys0 = 0xb2, .subsys1 = 0x8c, .vpd4 = 0x00, .vpd4_mask = 0x00, .core_speed = 1*GHz, .mem_size = 512*MB, .boot_flash = 2*MB, .user_flash = 64*MB, }, { .model = BOARD_MODEL_PRPMC2800, .variant = 'b', .bridge_type = BRIDGE_TYPE_MV64362, .subsys0 = 0xb2, .subsys1 = 0x8d, .vpd4 = 0x00, .vpd4_mask = 0x00, .core_speed = 1*GHz, .mem_size = 512*MB, .boot_flash = 0, .user_flash = 0, }, { .model = BOARD_MODEL_PRPMC2800, .variant = 'c', .bridge_type = BRIDGE_TYPE_MV64360, .subsys0 = 0xb2, .subsys1 = 0x8e, .vpd4 = 0x00, .vpd4_mask = 0x00, .core_speed = 733*MHz, .mem_size = 512*MB, .boot_flash = 2*MB, .user_flash = 64*MB, }, { .model = BOARD_MODEL_PRPMC2800, .variant = 'd', .bridge_type = BRIDGE_TYPE_MV64360, .subsys0 = 0xb2, .subsys1 = 0x8f, .vpd4 = 0x00, .vpd4_mask = 0x00, .core_speed = 1*GHz, .mem_size = 1*GB, .boot_flash = 2*MB, .user_flash = 64*MB, }, { .model = BOARD_MODEL_PRPMC2800, .variant = 'e', .bridge_type = BRIDGE_TYPE_MV64360, .subsys0 = 0xa2, .subsys1 = 0x8a, .vpd4 = 0x00, .vpd4_mask = 0x00, .core_speed = 1*GHz, .mem_size = 512*MB, .boot_flash = 2*MB, .user_flash = 64*MB, }, { .model = BOARD_MODEL_PRPMC2800, .variant = 'f', .bridge_type = BRIDGE_TYPE_MV64362, .subsys0 = 0xa2, .subsys1 = 0x8b, .vpd4 = 0x00, .vpd4_mask = 0x00, .core_speed = 733*MHz, .mem_size = 128*MB, .boot_flash = 2*MB, .user_flash = 0, }, { .model = BOARD_MODEL_PRPMC2800, .variant = 'g', .bridge_type = BRIDGE_TYPE_MV64360, .subsys0 = 0xa2, .subsys1 = 0x8c, .vpd4 = 0x00, .vpd4_mask = 0x00, .core_speed = 1*GHz, .mem_size = 2*GB, .boot_flash = 2*MB, .user_flash = 64*MB, }, { .model = BOARD_MODEL_PRPMC2800, .variant = 'h', .bridge_type = BRIDGE_TYPE_MV64360, .subsys0 = 0xa2, .subsys1 = 0x8d, .vpd4 = 0x00, .vpd4_mask = 0x00, .core_speed = 733*MHz, .mem_size = 1*GB, .boot_flash = 2*MB, .user_flash = 64*MB, }, }; static struct prpmc2800_board_info *prpmc2800_get_board_info(u8 *vpd) { struct prpmc2800_board_info *bip; int i; for (i=0,bip=prpmc2800_board_info; i<ARRAY_SIZE(prpmc2800_board_info); i++,bip++) if ((vpd[0] == bip->subsys0) && (vpd[1] == bip->subsys1) && ((vpd[4] & bip->vpd4_mask) == bip->vpd4)) return bip; return NULL; } /* Get VPD from i2c eeprom 2, then match it to a board info entry */ static struct prpmc2800_board_info *prpmc2800_get_bip(void) { struct prpmc2800_board_info *bip; u8 vpd[5]; int rc; if (mv64x60_i2c_open()) fatal("Error: Can't open i2c device\n\r"); /* Get VPD from i2c eeprom-2 */ memset(vpd, 0, sizeof(vpd)); rc = mv64x60_i2c_read(EEPROM2_ADDR, vpd, 0x1fde, 2, sizeof(vpd)); if (rc < 0) fatal("Error: Couldn't read eeprom2\n\r"); mv64x60_i2c_close(); /* Get board type & related info */ bip = prpmc2800_get_board_info(vpd); if (bip == NULL) { printf("Error: Unsupported board or corrupted VPD:\n\r"); printf(" 0x%x 0x%x 0x%x 0x%x 0x%x\n\r", vpd[0], vpd[1], vpd[2], vpd[3], vpd[4]); printf("Using device tree defaults...\n\r"); } return bip; } static void prpmc2800_bridge_setup(u32 mem_size) { u32 i, v[12], enables, acc_bits; u32 pci_base_hi, pci_base_lo, size, buf[2]; unsigned long cpu_base; int rc; void *devp; u8 *bridge_pbase, is_coherent; struct mv64x60_cpu2pci_win *tbl; bridge_pbase = mv64x60_get_bridge_pbase(); is_coherent = mv64x60_is_coherent(); if (is_coherent) acc_bits = MV64x60_PCI_ACC_CNTL_SNOOP_WB | MV64x60_PCI_ACC_CNTL_SWAP_NONE | MV64x60_PCI_ACC_CNTL_MBURST_32_BYTES | MV64x60_PCI_ACC_CNTL_RDSIZE_32_BYTES; else acc_bits = MV64x60_PCI_ACC_CNTL_SNOOP_NONE | MV64x60_PCI_ACC_CNTL_SWAP_NONE | MV64x60_PCI_ACC_CNTL_MBURST_128_BYTES | MV64x60_PCI_ACC_CNTL_RDSIZE_256_BYTES; mv64x60_config_ctlr_windows(bridge_base, bridge_pbase, is_coherent); mv64x60_config_pci_windows(bridge_base, bridge_pbase, 0, 0, mem_size, acc_bits); /* Get the cpu -> pci i/o & mem mappings from the device tree */ devp = finddevice("/mv64x60/pci@80000000"); if (devp == NULL) fatal("Error: Missing /mv64x60/pci@80000000" " device tree node\n\r"); rc = getprop(devp, "ranges", v, sizeof(v)); if (rc != sizeof(v)) fatal("Error: Can't find /mv64x60/pci@80000000/ranges" " property\n\r"); /* Get the cpu -> pci i/o & mem mappings from the device tree */ devp = finddevice("/mv64x60"); if (devp == NULL) fatal("Error: Missing /mv64x60 device tree node\n\r"); enables = in_le32((u32 *)(bridge_base + MV64x60_CPU_BAR_ENABLE)); enables |= 0x0007fe00; /* Disable all cpu->pci windows */ out_le32((u32 *)(bridge_base + MV64x60_CPU_BAR_ENABLE), enables); for (i=0; i<12; i+=6) { switch (v[i] & 0xff000000) { case 0x01000000: /* PCI I/O Space */ tbl = mv64x60_cpu2pci_io; break; case 0x02000000: /* PCI MEM Space */ tbl = mv64x60_cpu2pci_mem; break; default: continue; } pci_base_hi = v[i+1]; pci_base_lo = v[i+2]; cpu_base = v[i+3]; size = v[i+5]; buf[0] = cpu_base; buf[1] = size; if (!dt_xlate_addr(devp, buf, sizeof(buf), &cpu_base)) fatal("Error: Can't translate PCI address 0x%x\n\r", (u32)cpu_base); mv64x60_config_cpu2pci_window(bridge_base, 0, pci_base_hi, pci_base_lo, cpu_base, size, tbl); } enables &= ~0x00000600; /* Enable cpu->pci0 i/o, cpu->pci0 mem0 */ out_le32((u32 *)(bridge_base + MV64x60_CPU_BAR_ENABLE), enables); } static void prpmc2800_fixups(void) { u32 v[2], l, mem_size; int rc; void *devp; char model[BOARD_MODEL_MAX]; struct prpmc2800_board_info *bip; bip = prpmc2800_get_bip(); /* Get board info based on VPD */ mem_size = (bip) ? bip->mem_size : mv64x60_get_mem_size(bridge_base); prpmc2800_bridge_setup(mem_size); /* Do necessary bridge setup */ /* If the VPD doesn't match what we know about, just use the * defaults already in the device tree. */ if (!bip) return; /* Know the board type so override device tree defaults */ /* Set /model appropriately */ devp = finddevice("/"); if (devp == NULL) fatal("Error: Missing '/' device tree node\n\r"); memset(model, 0, BOARD_MODEL_MAX); strncpy(model, BOARD_MODEL, BOARD_MODEL_MAX - 2); l = strlen(model); if (bip->model == BOARD_MODEL_PRPMC280) l--; model[l++] = bip->variant; model[l++] = '\0'; setprop(devp, "model", model, l); /* Set /cpus/PowerPC,7447/clock-frequency */ devp = finddevice("/cpus/PowerPC,7447"); if (devp == NULL) fatal("Error: Missing proper /cpus device tree node\n\r"); v[0] = bip->core_speed; setprop(devp, "clock-frequency", &v[0], sizeof(v[0])); /* Set /memory/reg size */ devp = finddevice("/memory"); if (devp == NULL) fatal("Error: Missing /memory device tree node\n\r"); v[0] = 0; v[1] = bip->mem_size; setprop(devp, "reg", v, sizeof(v)); /* Update /mv64x60/model, if this is a mv64362 */ if (bip->bridge_type == BRIDGE_TYPE_MV64362) { devp = finddevice("/mv64x60"); if (devp == NULL) fatal("Error: Missing /mv64x60 device tree node\n\r"); setprop(devp, "model", "mv64362", strlen("mv64362") + 1); } /* Set User FLASH size */ devp = finddevice("/mv64x60/flash@a0000000"); if (devp == NULL) fatal("Error: Missing User FLASH device tree node\n\r"); rc = getprop(devp, "reg", v, sizeof(v)); if (rc != sizeof(v)) fatal("Error: Can't find User FLASH reg property\n\r"); v[1] = bip->user_flash; setprop(devp, "reg", v, sizeof(v)); } #define MV64x60_MPP_CNTL_0 0xf000 #define MV64x60_MPP_CNTL_2 0xf008 #define MV64x60_GPP_IO_CNTL 0xf100 #define MV64x60_GPP_LEVEL_CNTL 0xf110 #define MV64x60_GPP_VALUE_SET 0xf118 static void prpmc2800_reset(void) { u32 temp; udelay(5000000); if (bridge_base != 0) { temp = in_le32((u32 *)(bridge_base + MV64x60_MPP_CNTL_0)); temp &= 0xFFFF0FFF; out_le32((u32 *)(bridge_base + MV64x60_MPP_CNTL_0), temp); temp = in_le32((u32 *)(bridge_base + MV64x60_GPP_LEVEL_CNTL)); temp |= 0x00000004; out_le32((u32 *)(bridge_base + MV64x60_GPP_LEVEL_CNTL), temp); temp = in_le32((u32 *)(bridge_base + MV64x60_GPP_IO_CNTL)); temp |= 0x00000004; out_le32((u32 *)(bridge_base + MV64x60_GPP_IO_CNTL), temp); temp = in_le32((u32 *)(bridge_base + MV64x60_MPP_CNTL_2)); temp &= 0xFFFF0FFF; out_le32((u32 *)(bridge_base + MV64x60_MPP_CNTL_2), temp); temp = in_le32((u32 *)(bridge_base + MV64x60_GPP_LEVEL_CNTL)); temp |= 0x00080000; out_le32((u32 *)(bridge_base + MV64x60_GPP_LEVEL_CNTL), temp); temp = in_le32((u32 *)(bridge_base + MV64x60_GPP_IO_CNTL)); temp |= 0x00080000; out_le32((u32 *)(bridge_base + MV64x60_GPP_IO_CNTL), temp); out_le32((u32 *)(bridge_base + MV64x60_GPP_VALUE_SET), 0x00080004); } for (;;); } #define HEAP_SIZE (16*MB) static struct gunzip_state gzstate; void platform_init(unsigned long r3, unsigned long r4, unsigned long r5, unsigned long r6, unsigned long r7) { struct elf_info ei; char *heap_start, *dtb; int dt_size = _dtb_end - _dtb_start; void *vmlinuz_addr = _vmlinux_start; unsigned long vmlinuz_size = _vmlinux_end - _vmlinux_start; char elfheader[256]; if (dt_size <= 0) /* No fdt */ exit(); /* * Start heap after end of the kernel (after decompressed to * address 0) or the end of the zImage, whichever is higher. * That's so things allocated by simple_alloc won't overwrite * any part of the zImage and the kernel won't overwrite the dtb * when decompressed & relocated. */ gunzip_start(&gzstate, vmlinuz_addr, vmlinuz_size); gunzip_exactly(&gzstate, elfheader, sizeof(elfheader)); if (!parse_elf32(elfheader, &ei)) exit(); heap_start = (char *)(ei.memsize + ei.elfoffset); /* end of kernel*/ heap_start = max(heap_start, (char *)_end); /* end of zImage */ if ((unsigned)simple_alloc_init(heap_start, HEAP_SIZE, 2*KB, 16) > (128*MB)) exit(); /* Relocate dtb to safe area past end of zImage & kernel */ dtb = malloc(dt_size); if (!dtb) exit(); memmove(dtb, _dtb_start, dt_size); fdt_init(dtb); bridge_base = mv64x60_get_bridge_base(); platform_ops.fixups = prpmc2800_fixups; platform_ops.exit = prpmc2800_reset; if (serial_console_init() < 0) exit(); } /* _zimage_start called very early--need to turn off external interrupts */ asm (" .globl _zimage_start\n\ _zimage_start:\n\ mfmsr 10\n\ rlwinm 10,10,0,~(1<<15) /* Clear MSR_EE */\n\ sync\n\ mtmsr 10\n\ isync\n\ b _zimage_start_lib\n\ "); |