1 /* 2 * Copyright 2004,2007-2011 Freescale Semiconductor, Inc. 3 * (C) Copyright 2002, 2003 Motorola Inc. 4 * Xianghua Xiao (X.Xiao@motorola.com) 5 * 6 * (C) Copyright 2000 7 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 8 * 9 * SPDX-License-Identifier: GPL-2.0+ 10 */ 11 12 #include <config.h> 13 #include <common.h> 14 #include <watchdog.h> 15 #include <command.h> 16 #include <fsl_esdhc.h> 17 #include <asm/cache.h> 18 #include <asm/io.h> 19 #include <asm/mmu.h> 20 #include <fsl_ifc.h> 21 #include <asm/fsl_law.h> 22 #include <asm/fsl_lbc.h> 23 #include <post.h> 24 #include <asm/processor.h> 25 #include <fsl_ddr_sdram.h> 26 27 DECLARE_GLOBAL_DATA_PTR; 28 29 /* 30 * Default board reset function 31 */ 32 static void 33 __board_reset(void) 34 { 35 /* Do nothing */ 36 } 37 void board_reset(void) __attribute__((weak, alias("__board_reset"))); 38 39 int checkcpu (void) 40 { 41 sys_info_t sysinfo; 42 uint pvr, svr; 43 uint ver; 44 uint major, minor; 45 struct cpu_type *cpu; 46 char buf1[32], buf2[32]; 47 #if defined(CONFIG_DDR_CLK_FREQ) || defined(CONFIG_FSL_CORENET) 48 ccsr_gur_t __iomem *gur = 49 (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); 50 #endif 51 52 /* 53 * Cornet platforms use ddr sync bit in RCW to indicate sync vs async 54 * mode. Previous platform use ddr ratio to do the same. This 55 * information is only for display here. 56 */ 57 #ifdef CONFIG_FSL_CORENET 58 #ifdef CONFIG_SYS_FSL_QORIQ_CHASSIS2 59 u32 ddr_sync = 0; /* only async mode is supported */ 60 #else 61 u32 ddr_sync = ((gur->rcwsr[5]) & FSL_CORENET_RCWSR5_DDR_SYNC) 62 >> FSL_CORENET_RCWSR5_DDR_SYNC_SHIFT; 63 #endif /* CONFIG_SYS_FSL_QORIQ_CHASSIS2 */ 64 #else /* CONFIG_FSL_CORENET */ 65 #ifdef CONFIG_DDR_CLK_FREQ 66 u32 ddr_ratio = ((gur->porpllsr) & MPC85xx_PORPLLSR_DDR_RATIO) 67 >> MPC85xx_PORPLLSR_DDR_RATIO_SHIFT; 68 #else 69 u32 ddr_ratio = 0; 70 #endif /* CONFIG_DDR_CLK_FREQ */ 71 #endif /* CONFIG_FSL_CORENET */ 72 73 unsigned int i, core, nr_cores = cpu_numcores(); 74 u32 mask = cpu_mask(); 75 76 svr = get_svr(); 77 major = SVR_MAJ(svr); 78 minor = SVR_MIN(svr); 79 80 #if defined(CONFIG_SYS_FSL_QORIQ_CHASSIS2) && defined(CONFIG_E6500) 81 if (SVR_SOC_VER(svr) == SVR_T4080) { 82 ccsr_rcpm_t *rcpm = 83 (void __iomem *)(CONFIG_SYS_FSL_CORENET_RCPM_ADDR); 84 85 setbits_be32(&gur->devdisr2, FSL_CORENET_DEVDISR2_DTSEC1_6 || 86 FSL_CORENET_DEVDISR2_DTSEC1_9); 87 setbits_be32(&gur->devdisr3, FSL_CORENET_DEVDISR3_PCIE3); 88 setbits_be32(&gur->devdisr5, FSL_CORENET_DEVDISR5_DDR3); 89 90 /* It needs SW to disable core4~7 as HW design sake on T4080 */ 91 for (i = 4; i < 8; i++) 92 cpu_disable(i); 93 94 /* request core4~7 into PH20 state, prior to entering PCL10 95 * state, all cores in cluster should be placed in PH20 state. 96 */ 97 setbits_be32(&rcpm->pcph20setr, 0xf0); 98 99 /* put the 2nd cluster into PCL10 state */ 100 setbits_be32(&rcpm->clpcl10setr, 1 << 1); 101 } 102 #endif 103 104 if (cpu_numcores() > 1) { 105 #ifndef CONFIG_MP 106 puts("Unicore software on multiprocessor system!!\n" 107 "To enable mutlticore build define CONFIG_MP\n"); 108 #endif 109 volatile ccsr_pic_t *pic = (void *)(CONFIG_SYS_MPC8xxx_PIC_ADDR); 110 printf("CPU%d: ", pic->whoami); 111 } else { 112 puts("CPU: "); 113 } 114 115 cpu = gd->arch.cpu; 116 117 puts(cpu->name); 118 if (IS_E_PROCESSOR(svr)) 119 puts("E"); 120 121 printf(", Version: %d.%d, (0x%08x)\n", major, minor, svr); 122 123 pvr = get_pvr(); 124 ver = PVR_VER(pvr); 125 major = PVR_MAJ(pvr); 126 minor = PVR_MIN(pvr); 127 128 printf("Core: "); 129 switch(ver) { 130 case PVR_VER_E500_V1: 131 case PVR_VER_E500_V2: 132 puts("e500"); 133 break; 134 case PVR_VER_E500MC: 135 puts("e500mc"); 136 break; 137 case PVR_VER_E5500: 138 puts("e5500"); 139 break; 140 case PVR_VER_E6500: 141 puts("e6500"); 142 break; 143 default: 144 puts("Unknown"); 145 break; 146 } 147 148 printf(", Version: %d.%d, (0x%08x)\n", major, minor, pvr); 149 150 if (nr_cores > CONFIG_MAX_CPUS) { 151 panic("\nUnexpected number of cores: %d, max is %d\n", 152 nr_cores, CONFIG_MAX_CPUS); 153 } 154 155 get_sys_info(&sysinfo); 156 157 #ifdef CONFIG_SYS_FSL_SINGLE_SOURCE_CLK 158 if (sysinfo.diff_sysclk == 1) 159 puts("Single Source Clock Configuration\n"); 160 #endif 161 162 puts("Clock Configuration:"); 163 for_each_cpu(i, core, nr_cores, mask) { 164 if (!(i & 3)) 165 printf ("\n "); 166 printf("CPU%d:%-4s MHz, ", core, 167 strmhz(buf1, sysinfo.freq_processor[core])); 168 } 169 printf("\n CCB:%-4s MHz,", strmhz(buf1, sysinfo.freq_systembus)); 170 printf("\n"); 171 172 #ifdef CONFIG_FSL_CORENET 173 if (ddr_sync == 1) { 174 printf(" DDR:%-4s MHz (%s MT/s data rate) " 175 "(Synchronous), ", 176 strmhz(buf1, sysinfo.freq_ddrbus/2), 177 strmhz(buf2, sysinfo.freq_ddrbus)); 178 } else { 179 printf(" DDR:%-4s MHz (%s MT/s data rate) " 180 "(Asynchronous), ", 181 strmhz(buf1, sysinfo.freq_ddrbus/2), 182 strmhz(buf2, sysinfo.freq_ddrbus)); 183 } 184 #else 185 switch (ddr_ratio) { 186 case 0x0: 187 printf(" DDR:%-4s MHz (%s MT/s data rate), ", 188 strmhz(buf1, sysinfo.freq_ddrbus/2), 189 strmhz(buf2, sysinfo.freq_ddrbus)); 190 break; 191 case 0x7: 192 printf(" DDR:%-4s MHz (%s MT/s data rate) " 193 "(Synchronous), ", 194 strmhz(buf1, sysinfo.freq_ddrbus/2), 195 strmhz(buf2, sysinfo.freq_ddrbus)); 196 break; 197 default: 198 printf(" DDR:%-4s MHz (%s MT/s data rate) " 199 "(Asynchronous), ", 200 strmhz(buf1, sysinfo.freq_ddrbus/2), 201 strmhz(buf2, sysinfo.freq_ddrbus)); 202 break; 203 } 204 #endif 205 206 #if defined(CONFIG_FSL_LBC) 207 if (sysinfo.freq_localbus > LCRR_CLKDIV) { 208 printf("LBC:%-4s MHz\n", strmhz(buf1, sysinfo.freq_localbus)); 209 } else { 210 printf("LBC: unknown (LCRR[CLKDIV] = 0x%02lx)\n", 211 sysinfo.freq_localbus); 212 } 213 #endif 214 215 #if defined(CONFIG_FSL_IFC) 216 printf("IFC:%-4s MHz\n", strmhz(buf1, sysinfo.freq_localbus)); 217 #endif 218 219 #ifdef CONFIG_CPM2 220 printf("CPM: %s MHz\n", strmhz(buf1, sysinfo.freq_systembus)); 221 #endif 222 223 #ifdef CONFIG_QE 224 printf(" QE:%-4s MHz\n", strmhz(buf1, sysinfo.freq_qe)); 225 #endif 226 227 #ifdef CONFIG_SYS_DPAA_FMAN 228 for (i = 0; i < CONFIG_SYS_NUM_FMAN; i++) { 229 printf(" FMAN%d: %s MHz\n", i + 1, 230 strmhz(buf1, sysinfo.freq_fman[i])); 231 } 232 #endif 233 234 #ifdef CONFIG_SYS_DPAA_QBMAN 235 printf(" QMAN: %s MHz\n", strmhz(buf1, sysinfo.freq_qman)); 236 #endif 237 238 #ifdef CONFIG_SYS_DPAA_PME 239 printf(" PME: %s MHz\n", strmhz(buf1, sysinfo.freq_pme)); 240 #endif 241 242 puts("L1: D-cache 32 KiB enabled\n I-cache 32 KiB enabled\n"); 243 244 #ifdef CONFIG_FSL_CORENET 245 /* Display the RCW, so that no one gets confused as to what RCW 246 * we're actually using for this boot. 247 */ 248 puts("Reset Configuration Word (RCW):"); 249 for (i = 0; i < ARRAY_SIZE(gur->rcwsr); i++) { 250 u32 rcw = in_be32(&gur->rcwsr[i]); 251 252 if ((i % 4) == 0) 253 printf("\n %08x:", i * 4); 254 printf(" %08x", rcw); 255 } 256 puts("\n"); 257 #endif 258 259 return 0; 260 } 261 262 263 /* ------------------------------------------------------------------------- */ 264 265 int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 266 { 267 /* Everything after the first generation of PQ3 parts has RSTCR */ 268 #if defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || \ 269 defined(CONFIG_MPC8555) || defined(CONFIG_MPC8560) 270 unsigned long val, msr; 271 272 /* 273 * Initiate hard reset in debug control register DBCR0 274 * Make sure MSR[DE] = 1. This only resets the core. 275 */ 276 msr = mfmsr (); 277 msr |= MSR_DE; 278 mtmsr (msr); 279 280 val = mfspr(DBCR0); 281 val |= 0x70000000; 282 mtspr(DBCR0,val); 283 #else 284 volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); 285 286 /* Attempt board-specific reset */ 287 board_reset(); 288 289 /* Next try asserting HRESET_REQ */ 290 out_be32(&gur->rstcr, 0x2); 291 udelay(100); 292 #endif 293 294 return 1; 295 } 296 297 298 /* 299 * Get timebase clock frequency 300 */ 301 #ifndef CONFIG_SYS_FSL_TBCLK_DIV 302 #define CONFIG_SYS_FSL_TBCLK_DIV 8 303 #endif 304 __weak unsigned long get_tbclk (void) 305 { 306 unsigned long tbclk_div = CONFIG_SYS_FSL_TBCLK_DIV; 307 308 return (gd->bus_clk + (tbclk_div >> 1)) / tbclk_div; 309 } 310 311 312 #if defined(CONFIG_WATCHDOG) 313 #define WATCHDOG_MASK (TCR_WP(63) | TCR_WRC(3) | TCR_WIE) 314 void 315 init_85xx_watchdog(void) 316 { 317 mtspr(SPRN_TCR, (mfspr(SPRN_TCR) & ~WATCHDOG_MASK) | 318 TCR_WP(CONFIG_WATCHDOG_PRESC) | TCR_WRC(CONFIG_WATCHDOG_RC)); 319 } 320 321 void 322 reset_85xx_watchdog(void) 323 { 324 /* 325 * Clear TSR(WIS) bit by writing 1 326 */ 327 mtspr(SPRN_TSR, TSR_WIS); 328 } 329 330 void 331 watchdog_reset(void) 332 { 333 int re_enable = disable_interrupts(); 334 335 reset_85xx_watchdog(); 336 if (re_enable) 337 enable_interrupts(); 338 } 339 #endif /* CONFIG_WATCHDOG */ 340 341 /* 342 * Initializes on-chip MMC controllers. 343 * to override, implement board_mmc_init() 344 */ 345 int cpu_mmc_init(bd_t *bis) 346 { 347 #ifdef CONFIG_FSL_ESDHC 348 return fsl_esdhc_mmc_init(bis); 349 #else 350 return 0; 351 #endif 352 } 353 354 /* 355 * Print out the state of various machine registers. 356 * Currently prints out LAWs, BR0/OR0 for LBC, CSPR/CSOR/Timing 357 * parameters for IFC and TLBs 358 */ 359 void mpc85xx_reginfo(void) 360 { 361 print_tlbcam(); 362 print_laws(); 363 #if defined(CONFIG_FSL_LBC) 364 print_lbc_regs(); 365 #endif 366 #ifdef CONFIG_FSL_IFC 367 print_ifc_regs(); 368 #endif 369 370 } 371 372 /* Common ddr init for non-corenet fsl 85xx platforms */ 373 #ifndef CONFIG_FSL_CORENET 374 #if (defined(CONFIG_SYS_RAMBOOT) || defined(CONFIG_SPL)) && \ 375 !defined(CONFIG_SYS_INIT_L2_ADDR) 376 phys_size_t initdram(int board_type) 377 { 378 #if defined(CONFIG_SPD_EEPROM) || defined(CONFIG_DDR_SPD) || \ 379 defined(CONFIG_QEMU_E500) 380 return fsl_ddr_sdram_size(); 381 #else 382 return (phys_size_t)CONFIG_SYS_SDRAM_SIZE * 1024 * 1024; 383 #endif 384 } 385 #else /* CONFIG_SYS_RAMBOOT */ 386 phys_size_t initdram(int board_type) 387 { 388 phys_size_t dram_size = 0; 389 390 #if defined(CONFIG_SYS_FSL_ERRATUM_DDR_MSYNC_IN) 391 { 392 ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); 393 unsigned int x = 10; 394 unsigned int i; 395 396 /* 397 * Work around to stabilize DDR DLL 398 */ 399 out_be32(&gur->ddrdllcr, 0x81000000); 400 asm("sync;isync;msync"); 401 udelay(200); 402 while (in_be32(&gur->ddrdllcr) != 0x81000100) { 403 setbits_be32(&gur->devdisr, 0x00010000); 404 for (i = 0; i < x; i++) 405 ; 406 clrbits_be32(&gur->devdisr, 0x00010000); 407 x++; 408 } 409 } 410 #endif 411 412 #if defined(CONFIG_SPD_EEPROM) || \ 413 defined(CONFIG_DDR_SPD) || \ 414 defined(CONFIG_SYS_DDR_RAW_TIMING) 415 dram_size = fsl_ddr_sdram(); 416 #else 417 dram_size = fixed_sdram(); 418 #endif 419 dram_size = setup_ddr_tlbs(dram_size / 0x100000); 420 dram_size *= 0x100000; 421 422 #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) 423 /* 424 * Initialize and enable DDR ECC. 425 */ 426 ddr_enable_ecc(dram_size); 427 #endif 428 429 #if defined(CONFIG_FSL_LBC) 430 /* Some boards also have sdram on the lbc */ 431 lbc_sdram_init(); 432 #endif 433 434 debug("DDR: "); 435 return dram_size; 436 } 437 #endif /* CONFIG_SYS_RAMBOOT */ 438 #endif 439 440 #if CONFIG_POST & CONFIG_SYS_POST_MEMORY 441 442 /* Board-specific functions defined in each board's ddr.c */ 443 void fsl_ddr_get_spd(generic_spd_eeprom_t *ctrl_dimms_spd, 444 unsigned int ctrl_num); 445 void read_tlbcam_entry(int idx, u32 *valid, u32 *tsize, unsigned long *epn, 446 phys_addr_t *rpn); 447 unsigned int 448 setup_ddr_tlbs_phys(phys_addr_t p_addr, unsigned int memsize_in_meg); 449 450 void clear_ddr_tlbs_phys(phys_addr_t p_addr, unsigned int memsize_in_meg); 451 452 static void dump_spd_ddr_reg(void) 453 { 454 int i, j, k, m; 455 u8 *p_8; 456 u32 *p_32; 457 struct ccsr_ddr __iomem *ddr[CONFIG_NUM_DDR_CONTROLLERS]; 458 generic_spd_eeprom_t 459 spd[CONFIG_NUM_DDR_CONTROLLERS][CONFIG_DIMM_SLOTS_PER_CTLR]; 460 461 for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) 462 fsl_ddr_get_spd(spd[i], i); 463 464 puts("SPD data of all dimms (zero vaule is omitted)...\n"); 465 puts("Byte (hex) "); 466 k = 1; 467 for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { 468 for (j = 0; j < CONFIG_DIMM_SLOTS_PER_CTLR; j++) 469 printf("Dimm%d ", k++); 470 } 471 puts("\n"); 472 for (k = 0; k < sizeof(generic_spd_eeprom_t); k++) { 473 m = 0; 474 printf("%3d (0x%02x) ", k, k); 475 for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { 476 for (j = 0; j < CONFIG_DIMM_SLOTS_PER_CTLR; j++) { 477 p_8 = (u8 *) &spd[i][j]; 478 if (p_8[k]) { 479 printf("0x%02x ", p_8[k]); 480 m++; 481 } else 482 puts(" "); 483 } 484 } 485 if (m) 486 puts("\n"); 487 else 488 puts("\r"); 489 } 490 491 for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { 492 switch (i) { 493 case 0: 494 ddr[i] = (void *)CONFIG_SYS_FSL_DDR_ADDR; 495 break; 496 #if defined(CONFIG_SYS_FSL_DDR2_ADDR) && (CONFIG_NUM_DDR_CONTROLLERS > 1) 497 case 1: 498 ddr[i] = (void *)CONFIG_SYS_FSL_DDR2_ADDR; 499 break; 500 #endif 501 #if defined(CONFIG_SYS_FSL_DDR3_ADDR) && (CONFIG_NUM_DDR_CONTROLLERS > 2) 502 case 2: 503 ddr[i] = (void *)CONFIG_SYS_FSL_DDR3_ADDR; 504 break; 505 #endif 506 #if defined(CONFIG_SYS_FSL_DDR4_ADDR) && (CONFIG_NUM_DDR_CONTROLLERS > 3) 507 case 3: 508 ddr[i] = (void *)CONFIG_SYS_FSL_DDR4_ADDR; 509 break; 510 #endif 511 default: 512 printf("%s unexpected controller number = %u\n", 513 __func__, i); 514 return; 515 } 516 } 517 printf("DDR registers dump for all controllers " 518 "(zero vaule is omitted)...\n"); 519 puts("Offset (hex) "); 520 for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) 521 printf(" Base + 0x%04x", (u32)ddr[i] & 0xFFFF); 522 puts("\n"); 523 for (k = 0; k < sizeof(struct ccsr_ddr)/4; k++) { 524 m = 0; 525 printf("%6d (0x%04x)", k * 4, k * 4); 526 for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { 527 p_32 = (u32 *) ddr[i]; 528 if (p_32[k]) { 529 printf(" 0x%08x", p_32[k]); 530 m++; 531 } else 532 puts(" "); 533 } 534 if (m) 535 puts("\n"); 536 else 537 puts("\r"); 538 } 539 puts("\n"); 540 } 541 542 /* invalid the TLBs for DDR and setup new ones to cover p_addr */ 543 static int reset_tlb(phys_addr_t p_addr, u32 size, phys_addr_t *phys_offset) 544 { 545 u32 vstart = CONFIG_SYS_DDR_SDRAM_BASE; 546 unsigned long epn; 547 u32 tsize, valid, ptr; 548 int ddr_esel; 549 550 clear_ddr_tlbs_phys(p_addr, size>>20); 551 552 /* Setup new tlb to cover the physical address */ 553 setup_ddr_tlbs_phys(p_addr, size>>20); 554 555 ptr = vstart; 556 ddr_esel = find_tlb_idx((void *)ptr, 1); 557 if (ddr_esel != -1) { 558 read_tlbcam_entry(ddr_esel, &valid, &tsize, &epn, phys_offset); 559 } else { 560 printf("TLB error in function %s\n", __func__); 561 return -1; 562 } 563 564 return 0; 565 } 566 567 /* 568 * slide the testing window up to test another area 569 * for 32_bit system, the maximum testable memory is limited to 570 * CONFIG_MAX_MEM_MAPPED 571 */ 572 int arch_memory_test_advance(u32 *vstart, u32 *size, phys_addr_t *phys_offset) 573 { 574 phys_addr_t test_cap, p_addr; 575 phys_size_t p_size = min(gd->ram_size, CONFIG_MAX_MEM_MAPPED); 576 577 #if !defined(CONFIG_PHYS_64BIT) || \ 578 !defined(CONFIG_SYS_INIT_RAM_ADDR_PHYS) || \ 579 (CONFIG_SYS_INIT_RAM_ADDR_PHYS < 0x100000000ull) 580 test_cap = p_size; 581 #else 582 test_cap = gd->ram_size; 583 #endif 584 p_addr = (*vstart) + (*size) + (*phys_offset); 585 if (p_addr < test_cap - 1) { 586 p_size = min(test_cap - p_addr, CONFIG_MAX_MEM_MAPPED); 587 if (reset_tlb(p_addr, p_size, phys_offset) == -1) 588 return -1; 589 *vstart = CONFIG_SYS_DDR_SDRAM_BASE; 590 *size = (u32) p_size; 591 printf("Testing 0x%08llx - 0x%08llx\n", 592 (u64)(*vstart) + (*phys_offset), 593 (u64)(*vstart) + (*phys_offset) + (*size) - 1); 594 } else 595 return 1; 596 597 return 0; 598 } 599 600 /* initialization for testing area */ 601 int arch_memory_test_prepare(u32 *vstart, u32 *size, phys_addr_t *phys_offset) 602 { 603 phys_size_t p_size = min(gd->ram_size, CONFIG_MAX_MEM_MAPPED); 604 605 *vstart = CONFIG_SYS_DDR_SDRAM_BASE; 606 *size = (u32) p_size; /* CONFIG_MAX_MEM_MAPPED < 4G */ 607 *phys_offset = 0; 608 609 #if !defined(CONFIG_PHYS_64BIT) || \ 610 !defined(CONFIG_SYS_INIT_RAM_ADDR_PHYS) || \ 611 (CONFIG_SYS_INIT_RAM_ADDR_PHYS < 0x100000000ull) 612 if (gd->ram_size > CONFIG_MAX_MEM_MAPPED) { 613 puts("Cannot test more than "); 614 print_size(CONFIG_MAX_MEM_MAPPED, 615 " without proper 36BIT support.\n"); 616 } 617 #endif 618 printf("Testing 0x%08llx - 0x%08llx\n", 619 (u64)(*vstart) + (*phys_offset), 620 (u64)(*vstart) + (*phys_offset) + (*size) - 1); 621 622 return 0; 623 } 624 625 /* invalid TLBs for DDR and remap as normal after testing */ 626 int arch_memory_test_cleanup(u32 *vstart, u32 *size, phys_addr_t *phys_offset) 627 { 628 unsigned long epn; 629 u32 tsize, valid, ptr; 630 phys_addr_t rpn = 0; 631 int ddr_esel; 632 633 /* disable the TLBs for this testing */ 634 ptr = *vstart; 635 636 while (ptr < (*vstart) + (*size)) { 637 ddr_esel = find_tlb_idx((void *)ptr, 1); 638 if (ddr_esel != -1) { 639 read_tlbcam_entry(ddr_esel, &valid, &tsize, &epn, &rpn); 640 disable_tlb(ddr_esel); 641 } 642 ptr += TSIZE_TO_BYTES(tsize); 643 } 644 645 puts("Remap DDR "); 646 setup_ddr_tlbs(gd->ram_size>>20); 647 puts("\n"); 648 649 return 0; 650 } 651 652 void arch_memory_failure_handle(void) 653 { 654 dump_spd_ddr_reg(); 655 } 656 #endif 657