board/pcs440ep/pcs440ep.c

   1 /*
   2  * (C) Copyright 2006
   3  * Stefan Roese, DENX Software Engineering, sr@denx.de.
   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 <ppc4xx.h>
  26 #include <malloc.h>
  27 #include <command.h>
  28 #include <crc.h>
  29 #include <asm/processor.h>
  30 #include <spd_sdram.h>
  31 #include <status_led.h>
  32 #include <sha1.h>
  33
  34 DECLARE_GLOBAL_DATA_PTR;
  35
  36 extern flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips    */
  37
  38 unsigned char   sha1_checksum[SHA1_SUM_LEN];
  39
  40 /* swap 4 Bits (Bit0 = Bit3, Bit1 = Bit2, Bit2 = Bit1 and Bit3 = Bit0) */
  41 unsigned char swapbits[16] = {0x0, 0x8, 0x4, 0xc, 0x2, 0xa, 0x6, 0xe,
  42                               0x1, 0x9, 0x5, 0xd, 0x3, 0xb, 0x7, 0xf};
  43
  44 static void set_leds (int val)
  45 {
  46         out32(GPIO0_OR, (in32 (GPIO0_OR) & ~0x78000000) | (val << 27));
  47 }
  48
  49 #define GET_LEDS ((in32 (GPIO0_OR) & 0x78000000) >> 27)
  50
  51 void __led_init (led_id_t mask, int state)
  52 {
  53         int     val = GET_LEDS;
  54
  55         if (state == STATUS_LED_ON)
  56                 val |= mask;
  57         else
  58                 val &= ~mask;
  59         set_leds (val);
  60 }
  61
  62 void __led_set (led_id_t mask, int state)
  63 {
  64         int     val = GET_LEDS;
  65
  66         if (state == STATUS_LED_ON)
  67                 val |= mask;
  68         else if (state == STATUS_LED_OFF)
  69                 val &= ~mask;
  70         set_leds (val);
  71 }
  72
  73 void __led_toggle (led_id_t mask)
  74 {
  75         int     val = GET_LEDS;
  76
  77         val ^= mask;
  78         set_leds (val);
  79 }
  80
  81 static void status_led_blink (void)
  82 {
  83         int     i;
  84         int     val = GET_LEDS;
  85
  86         /* set all LED which are on, to state BLINKING */
  87         for (i = 0; i < 4; i++) {
  88                 if (val & 0x08) status_led_set (i, STATUS_LED_BLINKING);
  89                 val = val << 1;
  90         }
  91 }
  92
  93 #if defined(CONFIG_SHOW_BOOT_PROGRESS)
  94 void show_boot_progress (int val)
  95 {
  96         /* find all valid Codes for val in README */
  97         if (val == -30) return;
  98         if (val < 0) {
  99                 /* smthing goes wrong */
 100                 status_led_blink ();
 101                 return;
 102         }
 103         switch (val) {
 104                 case 1:
 105                         /* validating Image */
 106                         status_led_set (0, STATUS_LED_OFF);
 107                         status_led_set (1, STATUS_LED_ON);
 108                         status_led_set (2, STATUS_LED_ON);
 109                         break;
 110                 case 15:
 111                         /* booting */
 112                         status_led_set (0, STATUS_LED_ON);
 113                         status_led_set (1, STATUS_LED_ON);
 114                         status_led_set (2, STATUS_LED_ON);
 115                         break;
 116                 case 64:
 117                         /* starting Ethernet configuration */
 118                         status_led_set (0, STATUS_LED_OFF);
 119                         status_led_set (1, STATUS_LED_OFF);
 120                         status_led_set (2, STATUS_LED_ON);
 121                         break;
 122                 case 80:
 123                         /* loading Image */
 124                         status_led_set (0, STATUS_LED_ON);
 125                         status_led_set (1, STATUS_LED_OFF);
 126                         status_led_set (2, STATUS_LED_ON);
 127                         break;
 128         }
 129 }
 130 #endif
 131
 132 int board_early_init_f(void)
 133 {
 134         register uint reg;
 135
 136         set_leds(0);                    /* display boot info counter */
 137
 138         /*--------------------------------------------------------------------
 139          * Setup the external bus controller/chip selects
 140          *-------------------------------------------------------------------*/
 141         mtdcr(ebccfga, xbcfg);
 142         reg = mfdcr(ebccfgd);
 143         mtdcr(ebccfgd, reg | 0x04000000);       /* Set ATC */
 144
 145         /*--------------------------------------------------------------------
 146          * GPIO's are alreay setup in cpu/ppc4xx/cpu_init.c
 147          * via define from board config file.
 148          *-------------------------------------------------------------------*/
 149
 150         /*--------------------------------------------------------------------
 151          * Setup the interrupt controller polarities, triggers, etc.
 152          *-------------------------------------------------------------------*/
 153         mtdcr(uic0sr, 0xffffffff);      /* clear all */
 154         mtdcr(uic0er, 0x00000000);      /* disable all */
 155         mtdcr(uic0cr, 0x00000001);      /* UIC1 crit is critical */
 156         mtdcr(uic0pr, 0xfffffe1f);      /* per ref-board manual */
 157         mtdcr(uic0tr, 0x01c00000);      /* per ref-board manual */
 158         mtdcr(uic0vr, 0x00000001);      /* int31 highest, base=0x000 */
 159         mtdcr(uic0sr, 0xffffffff);      /* clear all */
 160
 161         mtdcr(uic1sr, 0xffffffff);      /* clear all */
 162         mtdcr(uic1er, 0x00000000);      /* disable all */
 163         mtdcr(uic1cr, 0x00000000);      /* all non-critical */
 164         mtdcr(uic1pr, 0xffffe0ff);      /* per ref-board manual */
 165         mtdcr(uic1tr, 0x00ffc000);      /* per ref-board manual */
 166         mtdcr(uic1vr, 0x00000001);      /* int31 highest, base=0x000 */
 167         mtdcr(uic1sr, 0xffffffff);      /* clear all */
 168
 169         /*--------------------------------------------------------------------
 170          * Setup other serial configuration
 171          *-------------------------------------------------------------------*/
 172         mfsdr(sdr_pci0, reg);
 173         mtsdr(sdr_pci0, 0x80000000 | reg);      /* PCI arbiter enabled */
 174         mtsdr(sdr_pfc0, 0x00000100);    /* Pin function: enable GPIO49-63 */
 175         mtsdr(sdr_pfc1, 0x00048000);    /* Pin function: UART0 has 4 pins, select IRQ5 */
 176
 177         return 0;
 178 }
 179
 180 #define EEPROM_LEN      256
 181 void load_sernum_ethaddr (void)
 182 {
 183         int     ret;
 184         char    buf[EEPROM_LEN];
 185         char    mac[32];
 186         char    *use_eeprom;
 187         u16     checksumcrc16 = 0;
 188
 189         /* read the MACs from EEprom */
 190         status_led_set (0, STATUS_LED_ON);
 191         status_led_set (1, STATUS_LED_ON);
 192         ret = eeprom_read (CFG_I2C_EEPROM_ADDR, 0, (uchar *)buf, EEPROM_LEN);
 193         if (ret == 0) {
 194                 checksumcrc16 = cyg_crc16 ((uchar *)buf, EEPROM_LEN - 2);
 195                 /* check, if the EEprom is programmed:
 196                  * - The Prefix(Byte 0,1,2) is equal to "ATR"
 197                  * - The checksum, stored in the last 2 Bytes, is correct
 198                  */
 199                 if ((strncmp (buf,"ATR",3) != 0) ||
 200                     ((checksumcrc16 >> 8) != buf[EEPROM_LEN - 2]) ||
 201                     ((checksumcrc16 & 0xff) != buf[EEPROM_LEN - 1])) {
 202                         /* EEprom is not programmed */
 203                         printf("%s: EEPROM Checksum not OK\n", __FUNCTION__);
 204                 } else {
 205                         /* get the MACs */
 206                         sprintf (mac, "%02x:%02x:%02x:%02x:%02x:%02x",
 207                                 buf[3],
 208                                 buf[4],
 209                                 buf[5],
 210                                 buf[6],
 211                                 buf[7],
 212                                 buf[8]);
 213                         setenv ("ethaddr", (char *) mac);
 214                         sprintf (mac, "%02x:%02x:%02x:%02x:%02x:%02x",
 215                                 buf[9],
 216                                 buf[10],
 217                                 buf[11],
 218                                 buf[12],
 219                                 buf[13],
 220                                 buf[14]);
 221                         setenv ("eth1addr", (char *) mac);
 222                         return;
 223                 }
 224         }
 225
 226         /* some error reading the EEprom */
 227         if ((use_eeprom = getenv ("use_eeprom_ethaddr")) == NULL) {
 228                 /* dont use bootcmd */
 229                 setenv("bootdelay", "-1");
 230                 return;
 231         }
 232         /* == default ? use standard */
 233         if (strncmp (use_eeprom, "default", 7) == 0) {
 234                 return;
 235         }
 236         /* Env doesnt exist -> hang */
 237         status_led_blink ();
 238         hang ();
 239         return;
 240 }
 241
 242 #ifdef CONFIG_PREBOOT
 243
 244 static uchar kbd_magic_prefix[]         = "key_magic";
 245 static uchar kbd_command_prefix[]       = "key_cmd";
 246
 247 struct kbd_data_t {
 248         char s1;
 249         char s2;
 250 };
 251
 252 struct kbd_data_t* get_keys (struct kbd_data_t *kbd_data)
 253 {
 254         char *val;
 255         unsigned long tmp;
 256
 257         /* use the DIPs for some bootoptions */
 258         val = getenv (ENV_NAME_DIP);
 259         tmp = simple_strtoul (val, NULL, 16);
 260
 261         kbd_data->s2 = (tmp & 0x0f);
 262         kbd_data->s1 = (tmp & 0xf0) >> 4;
 263         return kbd_data;
 264 }
 265
 266 static int compare_magic (const struct kbd_data_t *kbd_data, char *str)
 267 {
 268         char s1 = str[0];
 269
 270         if (s1 >= '0' && s1 <= '9')
 271                 s1 -= '0';
 272         else if (s1 >= 'a' && s1 <= 'f')
 273                 s1 = s1 - 'a' + 10;
 274         else if (s1 >= 'A' && s1 <= 'F')
 275                 s1 = s1 - 'A' + 10;
 276         else
 277                 return -1;
 278
 279         if (s1 != kbd_data->s1) return -1;
 280
 281         s1 = str[1];
 282         if (s1 >= '0' && s1 <= '9')
 283                 s1 -= '0';
 284         else if (s1 >= 'a' && s1 <= 'f')
 285                 s1 = s1 - 'a' + 10;
 286         else if (s1 >= 'A' && s1 <= 'F')
 287                 s1 = s1 - 'A' + 10;
 288         else
 289                 return -1;
 290
 291         if (s1 != kbd_data->s2) return -1;
 292         return 0;
 293 }
 294
 295 static char *key_match (const struct kbd_data_t *kbd_data)
 296 {
 297         char magic[sizeof (kbd_magic_prefix) + 1];
 298         char *suffix;
 299         char *kbd_magic_keys;
 300
 301         /*
 302          * The following string defines the characters that can be appended
 303          * to "key_magic" to form the names of environment variables that
 304          * hold "magic" key codes, i. e. such key codes that can cause
 305          * pre-boot actions. If the string is empty (""), then only
 306          * "key_magic" is checked (old behaviour); the string "125" causes
 307          * checks for "key_magic1", "key_magic2" and "key_magic5", etc.
 308          */
 309         if ((kbd_magic_keys = getenv ("magic_keys")) == NULL)
 310                 kbd_magic_keys = "";
 311
 312         /* loop over all magic keys;
 313          * use '\0' suffix in case of empty string
 314          */
 315         for (suffix = kbd_magic_keys; *suffix ||
 316                      suffix == kbd_magic_keys; ++suffix) {
 317                 sprintf (magic, "%s%c", kbd_magic_prefix, *suffix);
 318                 if (compare_magic (kbd_data, getenv (magic)) == 0) {
 319                         char cmd_name[sizeof (kbd_command_prefix) + 1];
 320                         char *cmd;
 321
 322                         sprintf (cmd_name, "%s%c", kbd_command_prefix, *suffix);
 323                         cmd = getenv (cmd_name);
 324
 325                         return (cmd);
 326                 }
 327         }
 328         return (NULL);
 329 }
 330
 331 #endif /* CONFIG_PREBOOT */
 332
 333 static int pcs440ep_readinputs (void)
 334 {
 335         int     i;
 336         char    value[20];
 337
 338         /* read the inputs and set the Envvars */
 339         /* Revision Level Bit 26 - 29 */
 340         i = ((in32 (GPIO0_IR) & 0x0000003c) >> 2);
 341         i = swapbits[i];
 342         sprintf (value, "%02x", i);
 343         setenv (ENV_NAME_REVLEV, value);
 344         /* Solder Switch Bit 30 - 33 */
 345         i = (in32 (GPIO0_IR) & 0x00000003) << 2;
 346         i += (in32 (GPIO1_IR) & 0xc0000000) >> 30;
 347         i = swapbits[i];
 348         sprintf (value, "%02x", i);
 349         setenv (ENV_NAME_SOLDER, value);
 350         /* DIP Switch Bit 49 - 56 */
 351         i = ((in32 (GPIO1_IR) & 0x00007f80) >> 7);
 352         i = (swapbits[i & 0x0f] << 4) + swapbits[(i & 0xf0) >> 4];
 353         sprintf (value, "%02x", i);
 354         setenv (ENV_NAME_DIP, value);
 355         return 0;
 356 }
 357
 358
 359 #if defined(CONFIG_SHA1_CHECK_UB_IMG)
 360 /*************************************************************************
 361  * calculate a SHA1 sum for the U-Boot image in Flash.
 362  *
 363  ************************************************************************/
 364 static int pcs440ep_sha1 (int docheck)
 365 {
 366         unsigned char *data;
 367         unsigned char *ptroff;
 368         unsigned char output[20];
 369         unsigned char org[20];
 370         int     i, len = CONFIG_SHA1_LEN;
 371
 372         memcpy ((char *)CFG_LOAD_ADDR, (char *)CONFIG_SHA1_START, len);
 373         data = (unsigned char *)CFG_LOAD_ADDR;
 374         ptroff = &data[len + SHA1_SUM_POS];
 375
 376         for (i = 0; i < SHA1_SUM_LEN; i++) {
 377                 org[i] = ptroff[i];
 378                 ptroff[i] = 0;
 379         }
 380
 381         sha1_csum ((unsigned char *) data, len, (unsigned char *)output);
 382
 383         if (docheck == 2) {
 384                 for (i = 0; i < 20 ; i++) {
 385                         printf("%02X ", output[i]);
 386                 }
 387                 printf("\n");
 388         }
 389         if (docheck == 1) {
 390                 for (i = 0; i < 20 ; i++) {
 391                         if (org[i] != output[i]) return 1;
 392                 }
 393         }
 394         return 0;
 395 }
 396
 397 /*************************************************************************
 398  * do some checks after the SHA1 checksum from the U-Boot Image was
 399  * calculated.
 400  *
 401  ************************************************************************/
 402 static void pcs440ep_checksha1 (void)
 403 {
 404         int     ret;
 405         char    *cs_test;
 406
 407         ret = pcs440ep_sha1 (1);
 408         if (ret == 0) return;
 409
 410         if ((cs_test = getenv ("cs_test")) == NULL) {
 411                 /* Env doesnt exist -> hang */
 412                 status_led_blink ();
 413                 hang ();
 414         }
 415
 416         if (strncmp (cs_test, "off", 3) == 0) {
 417                 printf ("SHA1 U-Boot sum NOT ok!\n");
 418                 setenv ("bootdelay", "-1");
 419         }
 420 }
 421 #else
 422 static __inline__ void pcs440ep_checksha1 (void) { do {} while (0);}
 423 #endif
 424
 425 int misc_init_r (void)
 426 {
 427         uint pbcr;
 428         int size_val = 0;
 429
 430         /* Re-do sizing to get full correct info */
 431         mtdcr(ebccfga, pb0cr);
 432         pbcr = mfdcr(ebccfgd);
 433         switch (gd->bd->bi_flashsize) {
 434         case 1 << 20:
 435                 size_val = 0;
 436                 break;
 437         case 2 << 20:
 438                 size_val = 1;
 439                 break;
 440         case 4 << 20:
 441                 size_val = 2;
 442                 break;
 443         case 8 << 20:
 444                 size_val = 3;
 445                 break;
 446         case 16 << 20:
 447                 size_val = 4;
 448                 break;
 449         case 32 << 20:
 450                 size_val = 5;
 451                 break;
 452         case 64 << 20:
 453                 size_val = 6;
 454                 break;
 455         case 128 << 20:
 456                 size_val = 7;
 457                 break;
 458         }
 459         pbcr = (pbcr & 0x0001ffff) | gd->bd->bi_flashstart | (size_val << 17);
 460         mtdcr(ebccfga, pb0cr);
 461         mtdcr(ebccfgd, pbcr);
 462
 463         /* adjust flash start and offset */
 464         gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize;
 465         gd->bd->bi_flashoffset = 0;
 466
 467         /* Monitor protection ON by default */
 468         (void)flash_protect(FLAG_PROTECT_SET,
 469                             -CFG_MONITOR_LEN,
 470                             0xffffffff,
 471                             &flash_info[1]);
 472
 473         /* Env protection ON by default */
 474         (void)flash_protect(FLAG_PROTECT_SET,
 475                             CFG_ENV_ADDR_REDUND,
 476                             CFG_ENV_ADDR_REDUND + 2*CFG_ENV_SECT_SIZE - 1,
 477                             &flash_info[1]);
 478
 479         pcs440ep_readinputs ();
 480         pcs440ep_checksha1 ();
 481 #ifdef CONFIG_PREBOOT
 482         {
 483                 struct kbd_data_t kbd_data;
 484                 /* Decode keys */
 485                 char *str = strdup (key_match (get_keys (&kbd_data)));
 486                 /* Set or delete definition */
 487                 setenv ("preboot", str);
 488                 free (str);
 489         }
 490 #endif /* CONFIG_PREBOOT */
 491         return 0;
 492 }
 493
 494 int checkboard(void)
 495 {
 496         char *s = getenv("serial#");
 497
 498         printf("Board: PCS440EP");
 499         if (s != NULL) {
 500                 puts(", serial# ");
 501                 puts(s);
 502         }
 503         putc('\n');
 504
 505         return (0);
 506 }
 507
 508 void spd_ddr_init_hang (void)
 509 {
 510         status_led_set (0, STATUS_LED_OFF);
 511         status_led_set (1, STATUS_LED_ON);
 512         /* we cannot use hang() because we are still running from
 513            Flash, and so the status_led driver is not initialized */
 514         puts ("### ERROR ### Please RESET the board ###\n");
 515         for (;;) {
 516                 __led_toggle (4);
 517                 udelay (100000);
 518         }
 519 }
 520
 521 long int initdram (int board_type)
 522 {
 523         long dram_size = 0;
 524
 525         status_led_set (0, STATUS_LED_ON);
 526         status_led_set (1, STATUS_LED_OFF);
 527         dram_size = spd_sdram();
 528         status_led_set (0, STATUS_LED_OFF);
 529         status_led_set (1, STATUS_LED_ON);
 530         if (dram_size == 0) {
 531                 hang();
 532         }
 533
 534         return dram_size;
 535 }
 536
 537 #if defined(CFG_DRAM_TEST)
 538 int testdram(void)
 539 {
 540         unsigned long *mem = (unsigned long *)0;
 541         const unsigned long kend = (1024 / sizeof(unsigned long));
 542         unsigned long k, n;
 543
 544         mtmsr(0);
 545
 546         for (k = 0; k < CFG_KBYTES_SDRAM;
 547              ++k, mem += (1024 / sizeof(unsigned long))) {
 548                 if ((k & 1023) == 0) {
 549                         printf("%3d MB\r", k / 1024);
 550                 }
 551
 552                 memset(mem, 0xaaaaaaaa, 1024);
 553                 for (n = 0; n < kend; ++n) {
 554                         if (mem[n] != 0xaaaaaaaa) {
 555                                 printf("SDRAM test fails at: %08x\n",
 556                                        (uint) & mem[n]);
 557                                 return 1;
 558                         }
 559                 }
 560
 561                 memset(mem, 0x55555555, 1024);
 562                 for (n = 0; n < kend; ++n) {
 563                         if (mem[n] != 0x55555555) {
 564                                 printf("SDRAM test fails at: %08x\n",
 565                                        (uint) & mem[n]);
 566                                 return 1;
 567                         }
 568                 }
 569         }
 570         printf("SDRAM test passes\n");
 571         return 0;
 572 }
 573 #endif
 574
 575 /*************************************************************************
 576  *  pci_pre_init
 577  *
 578  *  This routine is called just prior to registering the hose and gives
 579  *  the board the opportunity to check things. Returning a value of zero
 580  *  indicates that things are bad & PCI initialization should be aborted.
 581  *
 582  *      Different boards may wish to customize the pci controller structure
 583  *      (add regions, override default access routines, etc) or perform
 584  *      certain pre-initialization actions.
 585  *
 586  ************************************************************************/
 587 #if defined(CONFIG_PCI)
 588 int pci_pre_init(struct pci_controller *hose)
 589 {
 590         unsigned long addr;
 591
 592         /*-------------------------------------------------------------------------+
 593           | Set priority for all PLB3 devices to 0.
 594           | Set PLB3 arbiter to fair mode.
 595           +-------------------------------------------------------------------------*/
 596         mfsdr(sdr_amp1, addr);
 597         mtsdr(sdr_amp1, (addr & 0x000000FF) | 0x0000FF00);
 598         addr = mfdcr(plb3_acr);
 599         mtdcr(plb3_acr, addr | 0x80000000);
 600
 601         /*-------------------------------------------------------------------------+
 602           | Set priority for all PLB4 devices to 0.
 603           +-------------------------------------------------------------------------*/
 604         mfsdr(sdr_amp0, addr);
 605         mtsdr(sdr_amp0, (addr & 0x000000FF) | 0x0000FF00);
 606         addr = mfdcr(plb4_acr) | 0xa0000000;    /* Was 0x8---- */
 607         mtdcr(plb4_acr, addr);
 608
 609         /*-------------------------------------------------------------------------+
 610           | Set Nebula PLB4 arbiter to fair mode.
 611           +-------------------------------------------------------------------------*/
 612         /* Segment0 */
 613         addr = (mfdcr(plb0_acr) & ~plb0_acr_ppm_mask) | plb0_acr_ppm_fair;
 614         addr = (addr & ~plb0_acr_hbu_mask) | plb0_acr_hbu_enabled;
 615         addr = (addr & ~plb0_acr_rdp_mask) | plb0_acr_rdp_4deep;
 616         addr = (addr & ~plb0_acr_wrp_mask) | plb0_acr_wrp_2deep;
 617         mtdcr(plb0_acr, addr);
 618
 619         /* Segment1 */
 620         addr = (mfdcr(plb1_acr) & ~plb1_acr_ppm_mask) | plb1_acr_ppm_fair;
 621         addr = (addr & ~plb1_acr_hbu_mask) | plb1_acr_hbu_enabled;
 622         addr = (addr & ~plb1_acr_rdp_mask) | plb1_acr_rdp_4deep;
 623         addr = (addr & ~plb1_acr_wrp_mask) | plb1_acr_wrp_2deep;
 624         mtdcr(plb1_acr, addr);
 625
 626         return 1;
 627 }
 628 #endif  /* defined(CONFIG_PCI) */
 629
 630 /*************************************************************************
 631  *  pci_target_init
 632  *
 633  *      The bootstrap configuration provides default settings for the pci
 634  *      inbound map (PIM). But the bootstrap config choices are limited and
 635  *      may not be sufficient for a given board.
 636  *
 637  ************************************************************************/
 638 #if defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT)
 639 void pci_target_init(struct pci_controller *hose)
 640 {
 641         /*--------------------------------------------------------------------------+
 642          * Set up Direct MMIO registers
 643          *--------------------------------------------------------------------------*/
 644         /*--------------------------------------------------------------------------+
 645           | PowerPC440 EP PCI Master configuration.
 646           | Map one 1Gig range of PLB/processor addresses to PCI memory space.
 647           |   PLB address 0xA0000000-0xDFFFFFFF ==> PCI address 0xA0000000-0xDFFFFFFF
 648           |   Use byte reversed out routines to handle endianess.
 649           | Make this region non-prefetchable.
 650           +--------------------------------------------------------------------------*/
 651         out32r(PCIX0_PMM0MA, 0x00000000);       /* PMM0 Mask/Attribute - disabled b4 setting */
 652         out32r(PCIX0_PMM0LA, CFG_PCI_MEMBASE);  /* PMM0 Local Address */
 653         out32r(PCIX0_PMM0PCILA, CFG_PCI_MEMBASE);       /* PMM0 PCI Low Address */
 654         out32r(PCIX0_PMM0PCIHA, 0x00000000);    /* PMM0 PCI High Address */
 655         out32r(PCIX0_PMM0MA, 0xE0000001);       /* 512M + No prefetching, and enable region */
 656
 657         out32r(PCIX0_PMM1MA, 0x00000000);       /* PMM0 Mask/Attribute - disabled b4 setting */
 658         out32r(PCIX0_PMM1LA, CFG_PCI_MEMBASE2); /* PMM0 Local Address */
 659         out32r(PCIX0_PMM1PCILA, CFG_PCI_MEMBASE2);      /* PMM0 PCI Low Address */
 660         out32r(PCIX0_PMM1PCIHA, 0x00000000);    /* PMM0 PCI High Address */
 661         out32r(PCIX0_PMM1MA, 0xE0000001);       /* 512M + No prefetching, and enable region */
 662
 663         out32r(PCIX0_PTM1MS, 0x00000001);       /* Memory Size/Attribute */
 664         out32r(PCIX0_PTM1LA, 0);        /* Local Addr. Reg */
 665         out32r(PCIX0_PTM2MS, 0);        /* Memory Size/Attribute */
 666         out32r(PCIX0_PTM2LA, 0);        /* Local Addr. Reg */
 667
 668         /*--------------------------------------------------------------------------+
 669          * Set up Configuration registers
 670          *--------------------------------------------------------------------------*/
 671
 672         /* Program the board's subsystem id/vendor id */
 673         pci_write_config_word(0, PCI_SUBSYSTEM_VENDOR_ID,
 674                               CFG_PCI_SUBSYS_VENDORID);
 675         pci_write_config_word(0, PCI_SUBSYSTEM_ID, CFG_PCI_SUBSYS_ID);
 676
 677         /* Configure command register as bus master */
 678         pci_write_config_word(0, PCI_COMMAND, PCI_COMMAND_MASTER);
 679
 680         /* 240nS PCI clock */
 681         pci_write_config_word(0, PCI_LATENCY_TIMER, 1);
 682
 683         /* No error reporting */
 684         pci_write_config_word(0, PCI_ERREN, 0);
 685
 686         pci_write_config_dword(0, PCI_BRDGOPT2, 0x00000101);
 687
 688 }
 689 #endif                          /* defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT) */
 690
 691 /*************************************************************************
 692  *  pci_master_init
 693  *
 694  ************************************************************************/
 695 #if defined(CONFIG_PCI) && defined(CFG_PCI_MASTER_INIT)
 696 void pci_master_init(struct pci_controller *hose)
 697 {
 698         unsigned short temp_short;
 699
 700         /*--------------------------------------------------------------------------+
 701           | Write the PowerPC440 EP PCI Configuration regs.
 702           |   Enable PowerPC440 EP to be a master on the PCI bus (PMM).
 703           |   Enable PowerPC440 EP to act as a PCI memory target (PTM).
 704           +--------------------------------------------------------------------------*/
 705         pci_read_config_word(0, PCI_COMMAND, &temp_short);
 706         pci_write_config_word(0, PCI_COMMAND,
 707                               temp_short | PCI_COMMAND_MASTER |
 708                               PCI_COMMAND_MEMORY);
 709 }
 710 #endif                          /* defined(CONFIG_PCI) && defined(CFG_PCI_MASTER_INIT) */
 711
 712 /*************************************************************************
 713  *  is_pci_host
 714  *
 715  *      This routine is called to determine if a pci scan should be
 716  *      performed. With various hardware environments (especially cPCI and
 717  *      PPMC) it's insufficient to depend on the state of the arbiter enable
 718  *      bit in the strap register, or generic host/adapter assumptions.
 719  *
 720  *      Rather than hard-code a bad assumption in the general 440 code, the
 721  *      440 pci code requires the board to decide at runtime.
 722  *
 723  *      Return 0 for adapter mode, non-zero for host (monarch) mode.
 724  *
 725  *
 726  ************************************************************************/
 727 #if defined(CONFIG_PCI)
 728 int is_pci_host(struct pci_controller *hose)
 729 {
 730         /* PCS440EP is always configured as host. */
 731         return (1);
 732 }
 733 #endif                          /* defined(CONFIG_PCI) */
 734
 735 /*************************************************************************
 736  *  hw_watchdog_reset
 737  *
 738  *      This routine is called to reset (keep alive) the watchdog timer
 739  *
 740  ************************************************************************/
 741 #if defined(CONFIG_HW_WATCHDOG)
 742 void hw_watchdog_reset(void)
 743 {
 744
 745 }
 746 #endif
 747
 748 /*************************************************************************
 749  * "led" Commando for the U-Boot shell
 750  *
 751  ************************************************************************/
 752 int do_led (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 753 {
 754         int     rcode = 0;
 755         ulong   pattern = 0;
 756
 757         pattern = simple_strtoul (argv[1], NULL, 10);
 758         if (pattern > 200) {
 759                 status_led_blink ();
 760                 hang ();
 761                 return rcode;
 762         }
 763         if (pattern > 100) {
 764                 status_led_blink ();
 765                 return rcode;
 766         }
 767         pattern &= 0x0f;
 768         set_leds (pattern);
 769         return rcode;
 770 }
 771
 772 U_BOOT_CMD(
 773         led,    2,      1,      do_led,
 774         "led    - set the led\n",
 775         NULL
 776 );
 777
 778 #if defined(CONFIG_SHA1_CHECK_UB_IMG)
 779 /*************************************************************************
 780  * "sha1" Commando for the U-Boot shell
 781  *
 782  ************************************************************************/
 783 int do_sha1 (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 784 {
 785         int     rcode = -1;
 786
 787         if (argc < 2) {
 788   usage:
 789                 printf ("Usage:\n%s\n", cmdtp->usage);
 790                 return 1;
 791         }
 792
 793         if (argc >= 3) {
 794                 unsigned char *data;
 795                 unsigned char output[20];
 796                 int     len;
 797                 int     i;
 798
 799                 data = (unsigned char *)simple_strtoul (argv[1], NULL, 16);
 800                 len = simple_strtoul (argv[2], NULL, 16);
 801                 sha1_csum (data, len, (unsigned char *)output);
 802                 printf ("U-Boot sum:\n");
 803                 for (i = 0; i < 20 ; i++) {
 804                         printf ("%02X ", output[i]);
 805                 }
 806                 printf ("\n");
 807                 if (argc == 4) {
 808                         data = (unsigned char *)simple_strtoul (argv[3], NULL, 16);
 809                         memcpy (data, output, 20);
 810                 }
 811                 return 0;
 812         }
 813         if (argc == 2) {
 814                 char *ptr = argv[1];
 815                 if (*ptr != '-') goto usage;
 816                 ptr++;
 817                 if ((*ptr == 'c') || (*ptr == 'C')) {
 818                         rcode = pcs440ep_sha1 (1);
 819                         printf ("SHA1 U-Boot sum %sok!\n", (rcode != 0) ? "not " : "");
 820                 } else if ((*ptr == 'p') || (*ptr == 'P')) {
 821                         rcode = pcs440ep_sha1 (2);
 822                 } else {
 823                         rcode = pcs440ep_sha1 (0);
 824                 }
 825                 return rcode;
 826         }
 827         return rcode;
 828 }
 829
 830 U_BOOT_CMD(
 831         sha1,   4,      1,      do_sha1,
 832         "sha1    - calculate the SHA1 Sum\n",
 833         "address len [addr]  calculate the SHA1 sum [save at addr]\n"
 834         "     -p calculate the SHA1 sum from the U-Boot image in flash and print\n"
 835         "     -c check the U-Boot image in flash\n"
 836 );
 837 #endif
 838
 839 #ifdef CONFIG_IDE_PREINIT
 840 int ide_preinit (void)
 841 {
 842         /* Set True IDE Mode */
 843         out32 (GPIO0_OR, (in32 (GPIO0_OR) | 0x00100000));
 844         out32 (GPIO0_OR, (in32 (GPIO0_OR) | 0x00200000));
 845         out32 (GPIO1_OR, (in32 (GPIO1_OR) & ~0x00008040));
 846         udelay (100000);
 847         return 0;
 848 }
 849 #endif
 850
 851 #if defined (CFG_CMD_IDE) && defined (CONFIG_IDE_RESET)
 852 void ide_set_reset (int idereset)
 853 {
 854         debug ("ide_reset(%d)\n", idereset);
 855         if (idereset == 0) {
 856                 out32 (GPIO0_OR, (in32 (GPIO0_OR) | 0x00200000));
 857         } else {
 858                 out32 (GPIO0_OR, (in32 (GPIO0_OR) & ~0x00200000));
 859         }
 860         udelay (10000);
 861 }
 862 #endif /* defined (CFG_CMD_IDE) && defined (CONFIG_IDE_RESET) */