board/mpc8360emds/mpc8360emds.c

   1 /*
   2  * Copyright (C) 2006 Freescale Semiconductor, Inc.
   3  *
   4  * Dave Liu <daveliu@freescale.com>
   5  * based on board/mpc8349emds/mpc8349emds.c
   6  *
   7  * See file CREDITS for list of people who contributed to this
   8  * project.
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License as
  12  * published by the Free Software Foundation; either version 2 of
  13  * the License, or (at your option) any later version.
  14  */
  15
  16 #include <common.h>
  17 #include <ioports.h>
  18 #include <mpc83xx.h>
  19 #include <i2c.h>
  20 #include <spd.h>
  21 #include <miiphy.h>
  22 #include <command.h>
  23 #if defined(CONFIG_PCI)
  24 #include <pci.h>
  25 #endif
  26 #if defined(CONFIG_SPD_EEPROM)
  27 #include <spd_sdram.h>
  28 #else
  29 #include <asm/mmu.h>
  30 #endif
  31 #if defined(CONFIG_OF_FLAT_TREE)
  32 #include <ft_build.h>
  33 #endif
  34 #if defined(CONFIG_OF_LIBFDT)
  35 #include <libfdt.h>
  36 #include <libfdt_env.h>
  37 #endif
  38
  39 const qe_iop_conf_t qe_iop_conf_tab[] = {
  40         /* GETH1 */
  41         {0,  3, 1, 0, 1}, /* TxD0 */
  42         {0,  4, 1, 0, 1}, /* TxD1 */
  43         {0,  5, 1, 0, 1}, /* TxD2 */
  44         {0,  6, 1, 0, 1}, /* TxD3 */
  45         {1,  6, 1, 0, 3}, /* TxD4 */
  46         {1,  7, 1, 0, 1}, /* TxD5 */
  47         {1,  9, 1, 0, 2}, /* TxD6 */
  48         {1, 10, 1, 0, 2}, /* TxD7 */
  49         {0,  9, 2, 0, 1}, /* RxD0 */
  50         {0, 10, 2, 0, 1}, /* RxD1 */
  51         {0, 11, 2, 0, 1}, /* RxD2 */
  52         {0, 12, 2, 0, 1}, /* RxD3 */
  53         {0, 13, 2, 0, 1}, /* RxD4 */
  54         {1,  1, 2, 0, 2}, /* RxD5 */
  55         {1,  0, 2, 0, 2}, /* RxD6 */
  56         {1,  4, 2, 0, 2}, /* RxD7 */
  57         {0,  7, 1, 0, 1}, /* TX_EN */
  58         {0,  8, 1, 0, 1}, /* TX_ER */
  59         {0, 15, 2, 0, 1}, /* RX_DV */
  60         {0, 16, 2, 0, 1}, /* RX_ER */
  61         {0,  0, 2, 0, 1}, /* RX_CLK */
  62         {2,  9, 1, 0, 3}, /* GTX_CLK - CLK10 */
  63         {2,  8, 2, 0, 1}, /* GTX125 - CLK9 */
  64         /* GETH2 */
  65         {0, 17, 1, 0, 1}, /* TxD0 */
  66         {0, 18, 1, 0, 1}, /* TxD1 */
  67         {0, 19, 1, 0, 1}, /* TxD2 */
  68         {0, 20, 1, 0, 1}, /* TxD3 */
  69         {1,  2, 1, 0, 1}, /* TxD4 */
  70         {1,  3, 1, 0, 2}, /* TxD5 */
  71         {1,  5, 1, 0, 3}, /* TxD6 */
  72         {1,  8, 1, 0, 3}, /* TxD7 */
  73         {0, 23, 2, 0, 1}, /* RxD0 */
  74         {0, 24, 2, 0, 1}, /* RxD1 */
  75         {0, 25, 2, 0, 1}, /* RxD2 */
  76         {0, 26, 2, 0, 1}, /* RxD3 */
  77         {0, 27, 2, 0, 1}, /* RxD4 */
  78         {1, 12, 2, 0, 2}, /* RxD5 */
  79         {1, 13, 2, 0, 3}, /* RxD6 */
  80         {1, 11, 2, 0, 2}, /* RxD7 */
  81         {0, 21, 1, 0, 1}, /* TX_EN */
  82         {0, 22, 1, 0, 1}, /* TX_ER */
  83         {0, 29, 2, 0, 1}, /* RX_DV */
  84         {0, 30, 2, 0, 1}, /* RX_ER */
  85         {0, 31, 2, 0, 1}, /* RX_CLK */
  86         {2,  2, 1, 0, 2}, /* GTX_CLK = CLK10 */
  87         {2,  3, 2, 0, 1}, /* GTX125 - CLK4 */
  88
  89         {0,  1, 3, 0, 2}, /* MDIO */
  90         {0,  2, 1, 0, 1}, /* MDC */
  91
  92         {0,  0, 0, 0, QE_IOP_TAB_END}, /* END of table */
  93 };
  94
  95 int board_early_init_f(void)
  96 {
  97
  98         u8 *bcsr = (u8 *)CFG_BCSR;
  99         const immap_t *immr = (immap_t *)CFG_IMMR;
 100
 101         /* Enable flash write */
 102         bcsr[0xa] &= ~0x04;
 103
 104         /* Disable G1TXCLK, G2TXCLK h/w buffers (rev.2 h/w bug workaround) */
 105         if (immr->sysconf.spridr == SPR_8360_REV20 ||
 106             immr->sysconf.spridr == SPR_8360E_REV20)
 107                 bcsr[0xe] = 0x30;
 108
 109         return 0;
 110 }
 111
 112 #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRC)
 113 extern void ddr_enable_ecc(unsigned int dram_size);
 114 #endif
 115 int fixed_sdram(void);
 116 void sdram_init(void);
 117
 118 long int initdram(int board_type)
 119 {
 120         volatile immap_t *im = (immap_t *) CFG_IMMR;
 121         u32 msize = 0;
 122
 123         if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32) im)
 124                 return -1;
 125
 126         /* DDR SDRAM - Main SODIMM */
 127         im->sysconf.ddrlaw[0].bar = CFG_DDR_BASE & LAWBAR_BAR;
 128 #if defined(CONFIG_SPD_EEPROM)
 129         msize = spd_sdram();
 130 #else
 131         msize = fixed_sdram();
 132 #endif
 133
 134 #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRC)
 135         /*
 136          * Initialize DDR ECC byte
 137          */
 138         ddr_enable_ecc(msize * 1024 * 1024);
 139 #endif
 140         /*
 141          * Initialize SDRAM if it is on local bus.
 142          */
 143         sdram_init();
 144         puts("   DDR RAM: ");
 145         /* return total bus SDRAM size(bytes)  -- DDR */
 146         return (msize * 1024 * 1024);
 147 }
 148
 149 #if !defined(CONFIG_SPD_EEPROM)
 150 /*************************************************************************
 151  *  fixed sdram init -- doesn't use serial presence detect.
 152  ************************************************************************/
 153 int fixed_sdram(void)
 154 {
 155         volatile immap_t *im = (immap_t *) CFG_IMMR;
 156         u32 msize = 0;
 157         u32 ddr_size;
 158         u32 ddr_size_log2;
 159
 160         msize = CFG_DDR_SIZE;
 161         for (ddr_size = msize << 20, ddr_size_log2 = 0;
 162              (ddr_size > 1); ddr_size = ddr_size >> 1, ddr_size_log2++) {
 163                 if (ddr_size & 1) {
 164                         return -1;
 165                 }
 166         }
 167         im->sysconf.ddrlaw[0].ar =
 168             LAWAR_EN | ((ddr_size_log2 - 1) & LAWAR_SIZE);
 169 #if (CFG_DDR_SIZE != 256)
 170 #warning Currenly any ddr size other than 256 is not supported
 171 #endif
 172 #ifdef CONFIG_DDR_II
 173         im->ddr.csbnds[0].csbnds = CFG_DDR_CS0_BNDS;
 174         im->ddr.cs_config[0] = CFG_DDR_CS0_CONFIG;
 175         im->ddr.timing_cfg_0 = CFG_DDR_TIMING_0;
 176         im->ddr.timing_cfg_1 = CFG_DDR_TIMING_1;
 177         im->ddr.timing_cfg_2 = CFG_DDR_TIMING_2;
 178         im->ddr.timing_cfg_3 = CFG_DDR_TIMING_3;
 179         im->ddr.sdram_cfg = CFG_DDR_SDRAM_CFG;
 180         im->ddr.sdram_cfg2 = CFG_DDR_SDRAM_CFG2;
 181         im->ddr.sdram_mode = CFG_DDR_MODE;
 182         im->ddr.sdram_mode2 = CFG_DDR_MODE2;
 183         im->ddr.sdram_interval = CFG_DDR_INTERVAL;
 184         im->ddr.sdram_clk_cntl = CFG_DDR_CLK_CNTL;
 185 #else
 186         im->ddr.csbnds[0].csbnds = 0x00000007;
 187         im->ddr.csbnds[1].csbnds = 0x0008000f;
 188
 189         im->ddr.cs_config[0] = CFG_DDR_CONFIG;
 190         im->ddr.cs_config[1] = CFG_DDR_CONFIG;
 191
 192         im->ddr.timing_cfg_1 = CFG_DDR_TIMING_1;
 193         im->ddr.timing_cfg_2 = CFG_DDR_TIMING_2;
 194         im->ddr.sdram_cfg = CFG_DDR_CONTROL;
 195
 196         im->ddr.sdram_mode = CFG_DDR_MODE;
 197         im->ddr.sdram_interval = CFG_DDR_INTERVAL;
 198 #endif
 199         udelay(200);
 200         im->ddr.sdram_cfg |= SDRAM_CFG_MEM_EN;
 201
 202         return msize;
 203 }
 204 #endif                          /*!CFG_SPD_EEPROM */
 205
 206 int checkboard(void)
 207 {
 208         puts("Board: Freescale MPC8360EMDS\n");
 209         return 0;
 210 }
 211
 212 /*
 213  * if MPC8360EMDS is soldered with SDRAM
 214  */
 215 #if defined(CFG_BR2_PRELIM)  \
 216         && defined(CFG_OR2_PRELIM) \
 217         && defined(CFG_LBLAWBAR2_PRELIM) \
 218         && defined(CFG_LBLAWAR2_PRELIM)
 219 /*
 220  * Initialize SDRAM memory on the Local Bus.
 221  */
 222
 223 void sdram_init(void)
 224 {
 225         volatile immap_t *immap = (immap_t *) CFG_IMMR;
 226         volatile lbus83xx_t *lbc = &immap->lbus;
 227         uint *sdram_addr = (uint *) CFG_LBC_SDRAM_BASE;
 228
 229         puts("\n   SDRAM on Local Bus: ");
 230         print_size(CFG_LBC_SDRAM_SIZE * 1024 * 1024, "\n");
 231         /*
 232          * Setup SDRAM Base and Option Registers, already done in cpu_init.c
 233          */
 234         /*setup mtrpt, lsrt and lbcr for LB bus */
 235         lbc->lbcr = CFG_LBC_LBCR;
 236         lbc->mrtpr = CFG_LBC_MRTPR;
 237         lbc->lsrt = CFG_LBC_LSRT;
 238         asm("sync");
 239
 240         /*
 241          * Configure the SDRAM controller Machine Mode Register.
 242          */
 243         lbc->lsdmr = CFG_LBC_LSDMR_5;   /* Normal Operation */
 244         lbc->lsdmr = CFG_LBC_LSDMR_1;   /* Precharge All Banks */
 245         asm("sync");
 246         *sdram_addr = 0xff;
 247         udelay(100);
 248
 249         /*
 250          * We need do 8 times auto refresh operation.
 251          */
 252         lbc->lsdmr = CFG_LBC_LSDMR_2;
 253         asm("sync");
 254         *sdram_addr = 0xff;     /* 1 times */
 255         udelay(100);
 256         *sdram_addr = 0xff;     /* 2 times */
 257         udelay(100);
 258         *sdram_addr = 0xff;     /* 3 times */
 259         udelay(100);
 260         *sdram_addr = 0xff;     /* 4 times */
 261         udelay(100);
 262         *sdram_addr = 0xff;     /* 5 times */
 263         udelay(100);
 264         *sdram_addr = 0xff;     /* 6 times */
 265         udelay(100);
 266         *sdram_addr = 0xff;     /* 7 times */
 267         udelay(100);
 268         *sdram_addr = 0xff;     /* 8 times */
 269         udelay(100);
 270
 271         /* Mode register write operation */
 272         lbc->lsdmr = CFG_LBC_LSDMR_4;
 273         asm("sync");
 274         *(sdram_addr + 0xcc) = 0xff;
 275         udelay(100);
 276
 277         /* Normal operation */
 278         lbc->lsdmr = CFG_LBC_LSDMR_5 | 0x40000000;
 279         asm("sync");
 280         *sdram_addr = 0xff;
 281         udelay(100);
 282 }
 283 #else
 284 void sdram_init(void)
 285 {
 286         puts("SDRAM on Local Bus is NOT available!\n");
 287 }
 288 #endif
 289
 290 #if defined(CONFIG_DDR_ECC) && defined(CONFIG_DDR_ECC_CMD)
 291 /*
 292  * ECC user commands
 293  */
 294 void ecc_print_status(void)
 295 {
 296         volatile immap_t *immap = (immap_t *) CFG_IMMR;
 297         volatile ddr83xx_t *ddr = &immap->ddr;
 298
 299         printf("\nECC mode: %s\n\n",
 300                (ddr->sdram_cfg & SDRAM_CFG_ECC_EN) ? "ON" : "OFF");
 301
 302         /* Interrupts */
 303         printf("Memory Error Interrupt Enable:\n");
 304         printf("  Multiple-Bit Error Interrupt Enable: %d\n",
 305                (ddr->err_int_en & ECC_ERR_INT_EN_MBEE) ? 1 : 0);
 306         printf("  Single-Bit Error Interrupt Enable: %d\n",
 307                (ddr->err_int_en & ECC_ERR_INT_EN_SBEE) ? 1 : 0);
 308         printf("  Memory Select Error Interrupt Enable: %d\n\n",
 309                (ddr->err_int_en & ECC_ERR_INT_EN_MSEE) ? 1 : 0);
 310
 311         /* Error disable */
 312         printf("Memory Error Disable:\n");
 313         printf("  Multiple-Bit Error Disable: %d\n",
 314                (ddr->err_disable & ECC_ERROR_DISABLE_MBED) ? 1 : 0);
 315         printf("  Sinle-Bit Error Disable: %d\n",
 316                (ddr->err_disable & ECC_ERROR_DISABLE_SBED) ? 1 : 0);
 317         printf("  Memory Select Error Disable: %d\n\n",
 318                (ddr->err_disable & ECC_ERROR_DISABLE_MSED) ? 1 : 0);
 319
 320         /* Error injection */
 321         printf("Memory Data Path Error Injection Mask High/Low: %08lx %08lx\n",
 322                ddr->data_err_inject_hi, ddr->data_err_inject_lo);
 323
 324         printf("Memory Data Path Error Injection Mask ECC:\n");
 325         printf("  ECC Mirror Byte: %d\n",
 326                (ddr->ecc_err_inject & ECC_ERR_INJECT_EMB) ? 1 : 0);
 327         printf("  ECC Injection Enable: %d\n",
 328                (ddr->ecc_err_inject & ECC_ERR_INJECT_EIEN) ? 1 : 0);
 329         printf("  ECC Error Injection Mask: 0x%02x\n\n",
 330                ddr->ecc_err_inject & ECC_ERR_INJECT_EEIM);
 331
 332         /* SBE counter/threshold */
 333         printf("Memory Single-Bit Error Management (0..255):\n");
 334         printf("  Single-Bit Error Threshold: %d\n",
 335                (ddr->err_sbe & ECC_ERROR_MAN_SBET) >> ECC_ERROR_MAN_SBET_SHIFT);
 336         printf("  Single-Bit Error Counter: %d\n\n",
 337                (ddr->err_sbe & ECC_ERROR_MAN_SBEC) >> ECC_ERROR_MAN_SBEC_SHIFT);
 338
 339         /* Error detect */
 340         printf("Memory Error Detect:\n");
 341         printf("  Multiple Memory Errors: %d\n",
 342                (ddr->err_detect & ECC_ERROR_DETECT_MME) ? 1 : 0);
 343         printf("  Multiple-Bit Error: %d\n",
 344                (ddr->err_detect & ECC_ERROR_DETECT_MBE) ? 1 : 0);
 345         printf("  Single-Bit Error: %d\n",
 346                (ddr->err_detect & ECC_ERROR_DETECT_SBE) ? 1 : 0);
 347         printf("  Memory Select Error: %d\n\n",
 348                (ddr->err_detect & ECC_ERROR_DETECT_MSE) ? 1 : 0);
 349
 350         /* Capture data */
 351         printf("Memory Error Address Capture: 0x%08lx\n", ddr->capture_address);
 352         printf("Memory Data Path Read Capture High/Low: %08lx %08lx\n",
 353                ddr->capture_data_hi, ddr->capture_data_lo);
 354         printf("Memory Data Path Read Capture ECC: 0x%02x\n\n",
 355                ddr->capture_ecc & CAPTURE_ECC_ECE);
 356
 357         printf("Memory Error Attributes Capture:\n");
 358         printf(" Data Beat Number: %d\n",
 359                (ddr->capture_attributes & ECC_CAPT_ATTR_BNUM) >>
 360                ECC_CAPT_ATTR_BNUM_SHIFT);
 361         printf("  Transaction Size: %d\n",
 362                (ddr->capture_attributes & ECC_CAPT_ATTR_TSIZ) >>
 363                ECC_CAPT_ATTR_TSIZ_SHIFT);
 364         printf("  Transaction Source: %d\n",
 365                (ddr->capture_attributes & ECC_CAPT_ATTR_TSRC) >>
 366                ECC_CAPT_ATTR_TSRC_SHIFT);
 367         printf("  Transaction Type: %d\n",
 368                (ddr->capture_attributes & ECC_CAPT_ATTR_TTYP) >>
 369                ECC_CAPT_ATTR_TTYP_SHIFT);
 370         printf("  Error Information Valid: %d\n\n",
 371                ddr->capture_attributes & ECC_CAPT_ATTR_VLD);
 372 }
 373
 374 int do_ecc(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 375 {
 376         volatile immap_t *immap = (immap_t *) CFG_IMMR;
 377         volatile ddr83xx_t *ddr = &immap->ddr;
 378         volatile u32 val;
 379         u64 *addr;
 380         u32 count;
 381         register u64 *i;
 382         u32 ret[2];
 383         u32 pattern[2];
 384         u32 writeback[2];
 385
 386         /* The pattern is written into memory to generate error */
 387         pattern[0] = 0xfedcba98UL;
 388         pattern[1] = 0x76543210UL;
 389
 390         /* After injecting error, re-initialize the memory with the value */
 391         writeback[0] = 0x01234567UL;
 392         writeback[1] = 0x89abcdefUL;
 393
 394         if (argc > 4) {
 395                 printf("Usage:\n%s\n", cmdtp->usage);
 396                 return 1;
 397         }
 398
 399         if (argc == 2) {
 400                 if (strcmp(argv[1], "status") == 0) {
 401                         ecc_print_status();
 402                         return 0;
 403                 } else if (strcmp(argv[1], "captureclear") == 0) {
 404                         ddr->capture_address = 0;
 405                         ddr->capture_data_hi = 0;
 406                         ddr->capture_data_lo = 0;
 407                         ddr->capture_ecc = 0;
 408                         ddr->capture_attributes = 0;
 409                         return 0;
 410                 }
 411         }
 412         if (argc == 3) {
 413                 if (strcmp(argv[1], "sbecnt") == 0) {
 414                         val = simple_strtoul(argv[2], NULL, 10);
 415                         if (val > 255) {
 416                                 printf("Incorrect Counter value, "
 417                                        "should be 0..255\n");
 418                                 return 1;
 419                         }
 420
 421                         val = (val << ECC_ERROR_MAN_SBEC_SHIFT);
 422                         val |= (ddr->err_sbe & ECC_ERROR_MAN_SBET);
 423
 424                         ddr->err_sbe = val;
 425                         return 0;
 426                 } else if (strcmp(argv[1], "sbethr") == 0) {
 427                         val = simple_strtoul(argv[2], NULL, 10);
 428                         if (val > 255) {
 429                                 printf("Incorrect Counter value, "
 430                                        "should be 0..255\n");
 431                                 return 1;
 432                         }
 433
 434                         val = (val << ECC_ERROR_MAN_SBET_SHIFT);
 435                         val |= (ddr->err_sbe & ECC_ERROR_MAN_SBEC);
 436
 437                         ddr->err_sbe = val;
 438                         return 0;
 439                 } else if (strcmp(argv[1], "errdisable") == 0) {
 440                         val = ddr->err_disable;
 441
 442                         if (strcmp(argv[2], "+sbe") == 0) {
 443                                 val |= ECC_ERROR_DISABLE_SBED;
 444                         } else if (strcmp(argv[2], "+mbe") == 0) {
 445                                 val |= ECC_ERROR_DISABLE_MBED;
 446                         } else if (strcmp(argv[2], "+mse") == 0) {
 447                                 val |= ECC_ERROR_DISABLE_MSED;
 448                         } else if (strcmp(argv[2], "+all") == 0) {
 449                                 val |= (ECC_ERROR_DISABLE_SBED |
 450                                         ECC_ERROR_DISABLE_MBED |
 451                                         ECC_ERROR_DISABLE_MSED);
 452                         } else if (strcmp(argv[2], "-sbe") == 0) {
 453                                 val &= ~ECC_ERROR_DISABLE_SBED;
 454                         } else if (strcmp(argv[2], "-mbe") == 0) {
 455                                 val &= ~ECC_ERROR_DISABLE_MBED;
 456                         } else if (strcmp(argv[2], "-mse") == 0) {
 457                                 val &= ~ECC_ERROR_DISABLE_MSED;
 458                         } else if (strcmp(argv[2], "-all") == 0) {
 459                                 val &= ~(ECC_ERROR_DISABLE_SBED |
 460                                          ECC_ERROR_DISABLE_MBED |
 461                                          ECC_ERROR_DISABLE_MSED);
 462                         } else {
 463                                 printf("Incorrect err_disable field\n");
 464                                 return 1;
 465                         }
 466
 467                         ddr->err_disable = val;
 468                         __asm__ __volatile__("sync");
 469                         __asm__ __volatile__("isync");
 470                         return 0;
 471                 } else if (strcmp(argv[1], "errdetectclr") == 0) {
 472                         val = ddr->err_detect;
 473
 474                         if (strcmp(argv[2], "mme") == 0) {
 475                                 val |= ECC_ERROR_DETECT_MME;
 476                         } else if (strcmp(argv[2], "sbe") == 0) {
 477                                 val |= ECC_ERROR_DETECT_SBE;
 478                         } else if (strcmp(argv[2], "mbe") == 0) {
 479                                 val |= ECC_ERROR_DETECT_MBE;
 480                         } else if (strcmp(argv[2], "mse") == 0) {
 481                                 val |= ECC_ERROR_DETECT_MSE;
 482                         } else if (strcmp(argv[2], "all") == 0) {
 483                                 val |= (ECC_ERROR_DETECT_MME |
 484                                         ECC_ERROR_DETECT_MBE |
 485                                         ECC_ERROR_DETECT_SBE |
 486                                         ECC_ERROR_DETECT_MSE);
 487                         } else {
 488                                 printf("Incorrect err_detect field\n");
 489                                 return 1;
 490                         }
 491
 492                         ddr->err_detect = val;
 493                         return 0;
 494                 } else if (strcmp(argv[1], "injectdatahi") == 0) {
 495                         val = simple_strtoul(argv[2], NULL, 16);
 496
 497                         ddr->data_err_inject_hi = val;
 498                         return 0;
 499                 } else if (strcmp(argv[1], "injectdatalo") == 0) {
 500                         val = simple_strtoul(argv[2], NULL, 16);
 501
 502                         ddr->data_err_inject_lo = val;
 503                         return 0;
 504                 } else if (strcmp(argv[1], "injectecc") == 0) {
 505                         val = simple_strtoul(argv[2], NULL, 16);
 506                         if (val > 0xff) {
 507                                 printf("Incorrect ECC inject mask, "
 508                                        "should be 0x00..0xff\n");
 509                                 return 1;
 510                         }
 511                         val |= (ddr->ecc_err_inject & ~ECC_ERR_INJECT_EEIM);
 512
 513                         ddr->ecc_err_inject = val;
 514                         return 0;
 515                 } else if (strcmp(argv[1], "inject") == 0) {
 516                         val = ddr->ecc_err_inject;
 517
 518                         if (strcmp(argv[2], "en") == 0)
 519                                 val |= ECC_ERR_INJECT_EIEN;
 520                         else if (strcmp(argv[2], "dis") == 0)
 521                                 val &= ~ECC_ERR_INJECT_EIEN;
 522                         else
 523                                 printf("Incorrect command\n");
 524
 525                         ddr->ecc_err_inject = val;
 526                         __asm__ __volatile__("sync");
 527                         __asm__ __volatile__("isync");
 528                         return 0;
 529                 } else if (strcmp(argv[1], "mirror") == 0) {
 530                         val = ddr->ecc_err_inject;
 531
 532                         if (strcmp(argv[2], "en") == 0)
 533                                 val |= ECC_ERR_INJECT_EMB;
 534                         else if (strcmp(argv[2], "dis") == 0)
 535                                 val &= ~ECC_ERR_INJECT_EMB;
 536                         else
 537                                 printf("Incorrect command\n");
 538
 539                         ddr->ecc_err_inject = val;
 540                         return 0;
 541                 }
 542         }
 543         if (argc == 4) {
 544                 if (strcmp(argv[1], "testdw") == 0) {
 545                         addr = (u64 *) simple_strtoul(argv[2], NULL, 16);
 546                         count = simple_strtoul(argv[3], NULL, 16);
 547
 548                         if ((u32) addr % 8) {
 549                                 printf("Address not alligned on "
 550                                        "double word boundary\n");
 551                                 return 1;
 552                         }
 553                         disable_interrupts();
 554
 555                         for (i = addr; i < addr + count; i++) {
 556
 557                                 /* enable injects */
 558                                 ddr->ecc_err_inject |= ECC_ERR_INJECT_EIEN;
 559                                 __asm__ __volatile__("sync");
 560                                 __asm__ __volatile__("isync");
 561
 562                                 /* write memory location injecting errors */
 563                                 ppcDWstore((u32 *) i, pattern);
 564                                 __asm__ __volatile__("sync");
 565
 566                                 /* disable injects */
 567                                 ddr->ecc_err_inject &= ~ECC_ERR_INJECT_EIEN;
 568                                 __asm__ __volatile__("sync");
 569                                 __asm__ __volatile__("isync");
 570
 571                                 /* read data, this generates ECC error */
 572                                 ppcDWload((u32 *) i, ret);
 573                                 __asm__ __volatile__("sync");
 574
 575                                 /* re-initialize memory, double word write the location again,
 576                                  * generates new ECC code this time */
 577                                 ppcDWstore((u32 *) i, writeback);
 578                                 __asm__ __volatile__("sync");
 579                         }
 580                         enable_interrupts();
 581                         return 0;
 582                 }
 583                 if (strcmp(argv[1], "testword") == 0) {
 584                         addr = (u64 *) simple_strtoul(argv[2], NULL, 16);
 585                         count = simple_strtoul(argv[3], NULL, 16);
 586
 587                         if ((u32) addr % 8) {
 588                                 printf("Address not alligned on "
 589                                        "double word boundary\n");
 590                                 return 1;
 591                         }
 592                         disable_interrupts();
 593
 594                         for (i = addr; i < addr + count; i++) {
 595
 596                                 /* enable injects */
 597                                 ddr->ecc_err_inject |= ECC_ERR_INJECT_EIEN;
 598                                 __asm__ __volatile__("sync");
 599                                 __asm__ __volatile__("isync");
 600
 601                                 /* write memory location injecting errors */
 602                                 *(u32 *) i = 0xfedcba98UL;
 603                                 __asm__ __volatile__("sync");
 604
 605                                 /* sub double word write,
 606                                  * bus will read-modify-write,
 607                                  * generates ECC error */
 608                                 *((u32 *) i + 1) = 0x76543210UL;
 609                                 __asm__ __volatile__("sync");
 610
 611                                 /* disable injects */
 612                                 ddr->ecc_err_inject &= ~ECC_ERR_INJECT_EIEN;
 613                                 __asm__ __volatile__("sync");
 614                                 __asm__ __volatile__("isync");
 615
 616                                 /* re-initialize memory,
 617                                  * double word write the location again,
 618                                  * generates new ECC code this time */
 619                                 ppcDWstore((u32 *) i, writeback);
 620                                 __asm__ __volatile__("sync");
 621                         }
 622                         enable_interrupts();
 623                         return 0;
 624                 }
 625         }
 626         printf("Usage:\n%s\n", cmdtp->usage);
 627         return 1;
 628 }
 629
 630 U_BOOT_CMD(ecc, 4, 0, do_ecc,
 631            "ecc     - support for DDR ECC features\n",
 632            "status              - print out status info\n"
 633            "ecc captureclear        - clear capture regs data\n"
 634            "ecc sbecnt <val>        - set Single-Bit Error counter\n"
 635            "ecc sbethr <val>        - set Single-Bit Threshold\n"
 636            "ecc errdisable <flag>   - clear/set disable Memory Error Disable, flag:\n"
 637            "  [-|+]sbe - Single-Bit Error\n"
 638            "  [-|+]mbe - Multiple-Bit Error\n"
 639            "  [-|+]mse - Memory Select Error\n"
 640            "  [-|+]all - all errors\n"
 641            "ecc errdetectclr <flag> - clear Memory Error Detect, flag:\n"
 642            "  mme - Multiple Memory Errors\n"
 643            "  sbe - Single-Bit Error\n"
 644            "  mbe - Multiple-Bit Error\n"
 645            "  mse - Memory Select Error\n"
 646            "  all - all errors\n"
 647            "ecc injectdatahi <hi>  - set Memory Data Path Error Injection Mask High\n"
 648            "ecc injectdatalo <lo>  - set Memory Data Path Error Injection Mask Low\n"
 649            "ecc injectecc <ecc>    - set ECC Error Injection Mask\n"
 650            "ecc inject <en|dis>    - enable/disable error injection\n"
 651            "ecc mirror <en|dis>    - enable/disable mirror byte\n"
 652            "ecc testdw <addr> <cnt>  - test mem region with double word access:\n"
 653            "  - enables injects\n"
 654            "  - writes pattern injecting errors with double word access\n"
 655            "  - disables injects\n"
 656            "  - reads pattern back with double word access, generates error\n"
 657            "  - re-inits memory\n"
 658            "ecc testword <addr> <cnt>  - test mem region with word access:\n"
 659            "  - enables injects\n"
 660            "  - writes pattern injecting errors with word access\n"
 661            "  - writes pattern with word access, generates error\n"
 662            "  - disables injects\n" "  - re-inits memory");
 663 #endif                          /* if defined(CONFIG_DDR_ECC) && defined(CONFIG_DDR_ECC_CMD) */
 664
 665 #if (defined(CONFIG_OF_FLAT_TREE) || defined(CONFIG_OF_LIBFDT)) \
 666      && defined(CONFIG_OF_BOARD_SETUP)
 667
 668 /*
 669  * Prototypes of functions that we use.
 670  */
 671 void ft_cpu_setup(void *blob, bd_t *bd);
 672
 673 #ifdef CONFIG_PCI
 674 void ft_pci_setup(void *blob, bd_t *bd);
 675 #endif
 676
 677 void
 678 ft_board_setup(void *blob, bd_t *bd)
 679 {
 680 #if defined(CONFIG_OF_LIBFDT)
 681         int nodeoffset;
 682         int tmp[2];
 683
 684         nodeoffset = fdt_path_offset (fdt, "/memory");
 685         if (nodeoffset >= 0) {
 686                 tmp[0] = cpu_to_be32(bd->bi_memstart);
 687                 tmp[1] = cpu_to_be32(bd->bi_memsize);
 688                 fdt_setprop(fdt, nodeoffset, "reg", tmp, sizeof(tmp));
 689         }
 690 #else
 691         u32 *p;
 692         int len;
 693
 694         p = ft_get_prop(blob, "/memory/reg", &len);
 695         if (p != NULL) {
 696                 *p++ = cpu_to_be32(bd->bi_memstart);
 697                 *p = cpu_to_be32(bd->bi_memsize);
 698         }
 699 #endif
 700
 701 #ifdef CONFIG_PCI
 702         ft_pci_setup(blob, bd);
 703 #endif
 704         ft_cpu_setup(blob, bd);
 705 }
 706 #endif /* CONFIG_OF_x */