board/sc3/sc3.c

   1 /*
   2  * (C) Copyright 2007
   3  * Heiko Schocher, DENX Software Engineering, <hs@denx.de>.
   4  *
   5  * (C) Copyright 2003
   6  * Juergen Beisert, EuroDesign embedded technologies, info@eurodsn.de
   7  * Derived from walnut.c
   8  *
   9  * (C) Copyright 2000
  10  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  11  *
  12  * See file CREDITS for list of people who contributed to this
  13  * project.
  14  *
  15  * This program is free software; you can redistribute it and/or
  16  * modify it under the terms of the GNU General Public License as
  17  * published by the Free Software Foundation; either version 2 of
  18  * the License, or (at your option) any later version.
  19  *
  20  * This program is distributed in the hope that it will be useful,
  21  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  22  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23  * GNU General Public License for more details.
  24  *
  25  * You should have received a copy of the GNU General Public License
  26  * along with this program; if not, write to the Free Software
  27  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  28  * MA 02111-1307 USA
  29  *
  30  * $Log:$
  31  */
  32
  33 #include <common.h>
  34 #include <asm/processor.h>
  35 #include <asm/io.h>
  36 #include "sc3.h"
  37 #include <pci.h>
  38 #include <i2c.h>
  39 #include <malloc.h>
  40 #include <netdev.h>
  41
  42 #undef writel
  43 #undef writeb
  44 #define writeb(b,addr) ((*(volatile u8 *) (addr)) = (b))
  45 #define writel(b,addr) ((*(volatile u32 *) (addr)) = (b))
  46
  47 /* write only register to configure things in our CPLD */
  48 #define CPLD_CONTROL_1  0x79000102
  49 #define CPLD_VERSION    0x79000103
  50
  51 #define IS_CAMERON ((*(unsigned char *)(CPLD_VERSION)== 0x32) ? 1 : 0)
  52
  53 static struct pci_controller hose={0,};
  54
  55 /************************************************************
  56  * Standard definition
  57  ************************************************************/
  58
  59 /* CPC0_CR0        Function                                 ISA bus
  60         -  GPIO0
  61         -  GPIO1      -> Output: NAND-Command Latch Enable
  62         -  GPIO2      -> Output: NAND Address Latch Enable
  63         -  GPIO3      -> IRQ input                               ISA-IRQ #5 (through CPLD)
  64         -  GPIO4      -> Output: NAND-Chip Enable
  65         -  GPIO5      -> IRQ input                               ISA-IRQ#7 (through CPLD)
  66         -  GPIO6      -> IRQ input                               ISA-IRQ#9 (through CPLD)
  67         -  GPIO7      -> IRQ input                               ISA-IRQ#10 (through CPLD)
  68         -  GPIO8      -> IRQ input                               ISA-IRQ#11 (through CPLD)
  69         -  GPIO9      -> IRQ input                               ISA-IRQ#12 (through CPLD)
  70         - GPIO10/CS1# -> CS1# NAND                               ISA-CS#0
  71         - GPIO11/CS2# -> CS2# ISA emulation                      ISA-CS#1
  72         - GPIO12/CS3# -> CS3# 2nd Flash-Bank                     ISA-CS#2 or ISA-CS#7
  73         - GPIO13/CS4# -> CS4# USB HC or ISA emulation            ISA-CS#3
  74         - GPIO14/CS5# -> CS5# Boosted IDE access                 ISA-CS#4
  75         - GPIO15/CS6# -> CS6# ISA emulation                      ISA-CS#5
  76         - GPIO16/CS7# -> CS7# ISA emulation                      ISA-CS#6
  77         - GPIO17/IRQ0 -> GPIO, in, NAND-Ready/Busy# line         ISA-IRQ#3
  78         - GPIO18/IRQ1 -> IRQ input                               ISA-IRQ#14
  79         - GPIO19/IRQ2 -> IRQ input or USB                        ISA-IRQ#4
  80         - GPIO20/IRQ3 -> IRQ input                               PCI-IRQ#D
  81         - GPIO21/IRQ4 -> IRQ input                               PCI-IRQ#C
  82         - GPIO22/IRQ5 -> IRQ input                               PCI-IRQ#B
  83         - GPIO23/IRQ6 -> IRQ input                               PCI-IRQ#A
  84         - GPIO24 -> if GPIO output: 0=JTAG CPLD activ, 1=JTAG CPLD inactiv
  85 */
  86 /*
  87 | CPLD register: io-space at offset 0x102 (write only)
  88 | 0
  89 | 1
  90 | 2 0=CS#4 USB CS#, 1=ISA or GP bus
  91 | 3
  92 | 4
  93 | 5
  94 | 6 1=enable faster IDE access
  95 | 7
  96 */
  97 #define USB_CHIP_ENABLE 0x04
  98 #define IDE_BOOSTING 0x40
  99
 100 /* --------------- USB stuff ------------------------------------- */
 101 #ifdef CONFIG_ISP1161_PRESENT
 102 /**
 103  * initUsbHost- Initialize the Philips isp1161 HC part if present
 104  * @cpldConfig: Pointer to value in write only CPLD register
 105  *
 106  * Initialize the USB host controller if present and fills the
 107  * scratch register to inform the driver about used resources
 108  */
 109
 110 static void initUsbHost (unsigned char *cpldConfig)
 111 {
 112         int i;
 113         unsigned long usbBase;
 114         /*
 115          * Read back where init.S has located the USB chip
 116          */
 117         mtdcr (0x012, 0x04);
 118         usbBase = mfdcr (0x013);
 119         if (!(usbBase & 0x18000))       /* enabled? */
 120                 return;
 121         usbBase &= 0xFFF00000;
 122
 123         /*
 124          * to test for the USB controller enable using of CS#4 and DMA 3 for USB access
 125          */
 126         writeb (*cpldConfig | USB_CHIP_ENABLE,CPLD_CONTROL_1);
 127
 128         /*
 129          * first check: is the controller assembled?
 130          */
 131         hcWriteWord (usbBase, 0x5555, HcScratch);
 132         if (hcReadWord (usbBase, HcScratch) == 0x5555) {
 133                 hcWriteWord (usbBase, 0xAAAA, HcScratch);
 134                 if (hcReadWord (usbBase, HcScratch) == 0xAAAA) {
 135                         if ((hcReadWord (usbBase, HcChipID) & 0xFF00) != 0x6100)
 136                                 return; /* this is not our controller */
 137                 /*
 138                  * try a software reset. This needs up to 10 seconds (see datasheet)
 139                  */
 140                         hcWriteDWord (usbBase, 0x00000001, HcCommandStatus);
 141                         for (i = 1000; i > 0; i--) {    /* loop up to 10 seconds */
 142                                 udelay (10);
 143                                 if (!(hcReadDWord (usbBase, HcCommandStatus) & 0x01))
 144                                         break;
 145                         }
 146
 147                         if (!i)
 148                                 return;  /* the controller doesn't responding. Broken? */
 149                 /*
 150                  * OK. USB controller is ready. Initialize it in such way the later driver
 151                  * can us it (without any knowing about specific implementation)
 152                  */
 153                         hcWriteDWord (usbBase, 0x00000000, HcControl);
 154                 /*
 155                  * disable all interrupt sources. Because we
 156                  * don't know where we come from (hard reset, cold start, soft reset...)
 157                  */
 158                         hcWriteDWord (usbBase, 0x8000007D, HcInterruptDisable);
 159                 /*
 160                  * our current setup hardware configuration
 161                  * - every port power supply can switched indepently
 162                  * - every port can signal overcurrent
 163                  * - every port is "outside" and the devices are removeable
 164                  */
 165                         hcWriteDWord (usbBase, 0x32000902, HcRhDescriptorA);
 166                         hcWriteDWord (usbBase, 0x00060000, HcRhDescriptorB);
 167                 /*
 168                  * don't forget to switch off power supply of each port
 169                  * The later running driver can reenable them to find and use
 170                  * the (maybe) connected devices.
 171                  *
 172                  */
 173                         hcWriteDWord (usbBase, 0x00000200, HcRhPortStatus1);
 174                         hcWriteDWord (usbBase, 0x00000200, HcRhPortStatus2);
 175                         hcWriteWord (usbBase, 0x0428, HcHardwareConfiguration);
 176                         hcWriteWord (usbBase, 0x0040, HcDMAConfiguration);
 177                         hcWriteWord (usbBase, 0x0000, HcuPInterruptEnable);
 178                         hcWriteWord (usbBase, 0xA000 | (0x03 << 8) | 27, HcScratch);
 179                 /*
 180                  * controller is present and usable
 181                  */
 182                         *cpldConfig |= USB_CHIP_ENABLE;
 183                 }
 184         }
 185 }
 186 #endif
 187
 188 #if defined(CONFIG_START_IDE)
 189 int board_start_ide(void)
 190 {
 191         if (IS_CAMERON) {
 192                 puts ("no IDE on cameron board.\n");
 193                 return 0;
 194         }
 195         return 1;
 196 }
 197 #endif
 198
 199 static int sc3_cameron_init (void)
 200 {
 201         /* Set up the Memory Controller for the CAMERON version */
 202         mtebc (pb4ap, 0x01805940);
 203         mtebc (pb4cr, 0x7401a000);
 204         mtebc (pb5ap, 0x01805940);
 205         mtebc (pb5cr, 0x7401a000);
 206         mtebc (pb6ap, 0x0);
 207         mtebc (pb6cr, 0x0);
 208         mtebc (pb7ap, 0x0);
 209         mtebc (pb7cr, 0x0);
 210         return 0;
 211 }
 212
 213 void sc3_read_eeprom (void)
 214 {
 215         uchar i2c_buffer[18];
 216
 217         i2c_read (0x50, 0x03, 1, i2c_buffer, 9);
 218         i2c_buffer[9] = 0;
 219         setenv ("serial#", (char *)i2c_buffer);
 220
 221         /* read mac-address from eeprom */
 222         i2c_read (0x50, 0x11, 1, i2c_buffer, 15);
 223         i2c_buffer[17] = 0;
 224         i2c_buffer[16] = i2c_buffer[14];
 225         i2c_buffer[15] = i2c_buffer[13];
 226         i2c_buffer[14] = ':';
 227         i2c_buffer[13] = i2c_buffer[12];
 228         i2c_buffer[12] = i2c_buffer[11];
 229         i2c_buffer[11] = ':';
 230         i2c_buffer[8] = ':';
 231         i2c_buffer[5] = ':';
 232         i2c_buffer[2] = ':';
 233         setenv ("ethaddr", (char *)i2c_buffer);
 234 }
 235
 236 int board_early_init_f (void)
 237 {
 238         /* write only register to configure things in our CPLD */
 239         unsigned char cpldConfig_1=0x00;
 240
 241 /*-------------------------------------------------------------------------+
 242 | Interrupt controller setup for the SolidCard III CPU card (plus Evaluation board).
 243 |
 244 | Note: IRQ 0  UART 0, active high; level sensitive
 245 |       IRQ 1  UART 1, active high; level sensitive
 246 |       IRQ 2  IIC, active high; level sensitive
 247 |       IRQ 3  Ext. master, rising edge, edge sensitive
 248 |       IRQ 4  PCI, active high; level sensitive
 249 |       IRQ 5  DMA Channel 0, active high; level sensitive
 250 |       IRQ 6  DMA Channel 1, active high; level sensitive
 251 |       IRQ 7  DMA Channel 2, active high; level sensitive
 252 |       IRQ 8  DMA Channel 3, active high; level sensitive
 253 |       IRQ 9  Ethernet Wakeup, active high; level sensitive
 254 |       IRQ 10 MAL System Error (SERR), active high; level sensitive
 255 |       IRQ 11 MAL Tx End of Buffer, active high; level sensitive
 256 |       IRQ 12 MAL Rx End of Buffer, active high; level sensitive
 257 |       IRQ 13 MAL Tx Descriptor Error, active high; level sensitive
 258 |       IRQ 14 MAL Rx Descriptor Error, active high; level sensitive
 259 |       IRQ 15 Ethernet, active high; level sensitive
 260 |       IRQ 16 External PCI SERR, active high; level sensitive
 261 |       IRQ 17 ECC Correctable Error, active high; level sensitive
 262 |       IRQ 18 PCI Power Management, active high; level sensitive
 263 |
 264 |       IRQ 19 (EXT IRQ7 405GPr only)
 265 |       IRQ 20 (EXT IRQ8 405GPr only)
 266 |       IRQ 21 (EXT IRQ9 405GPr only)
 267 |       IRQ 22 (EXT IRQ10 405GPr only)
 268 |       IRQ 23 (EXT IRQ11 405GPr only)
 269 |       IRQ 24 (EXT IRQ12 405GPr only)
 270 |
 271 |       IRQ 25 (EXT IRQ 0) NAND-Flash R/B# (raising edge means flash is ready)
 272 |       IRQ 26 (EXT IRQ 1) IDE0 interrupt (x86 = IRQ14). Active high (edge sensitive)
 273 |       IRQ 27 (EXT IRQ 2) USB controller
 274 |       IRQ 28 (EXT IRQ 3) INT D, VGA; active low; level sensitive
 275 |       IRQ 29 (EXT IRQ 4) INT C, Ethernet; active low; level sensitive
 276 |       IRQ 30 (EXT IRQ 5) INT B, PC104+ SLOT; active low; level sensitive
 277 |       IRQ 31 (EXT IRQ 6) INT A, PC104+ SLOT; active low; level sensitive
 278 |
 279 | Direct Memory Access Controller Signal Polarities
 280 |       DRQ0 active high (like ISA)
 281 |       ACK0 active low (like ISA)
 282 |       EOT0 active high (like ISA)
 283 |       DRQ1 active high (like ISA)
 284 |       ACK1 active low (like ISA)
 285 |       EOT1 active high (like ISA)
 286 |       DRQ2 active high (like ISA)
 287 |       ACK2 active low (like ISA)
 288 |       EOT2 active high (like ISA)
 289 |       DRQ3 active high (like ISA)
 290 |       ACK3 active low (like ISA)
 291 |       EOT3 active high (like ISA)
 292 |
 293 +-------------------------------------------------------------------------*/
 294
 295         writeb (cpldConfig_1, CPLD_CONTROL_1);  /* disable everything in CPLD */
 296
 297         mtdcr (uicsr, 0xFFFFFFFF);    /* clear all ints */
 298         mtdcr (uicer, 0x00000000);    /* disable all ints */
 299         mtdcr (uiccr, 0x00000000);    /* set all to be non-critical */
 300
 301         if (IS_CAMERON) {
 302                 sc3_cameron_init();
 303                 mtdcr (0x0B6, 0x18000000);
 304                 mtdcr (uicpr, 0xFFFFFFF0);
 305                 mtdcr (uictr, 0x10001030);
 306         } else {
 307                 mtdcr (0x0B6, 0x0000000);
 308                 mtdcr (uicpr, 0xFFFFFFE0);
 309                 mtdcr (uictr, 0x10000020);
 310         }
 311         mtdcr (uicvcr, 0x00000001);   /* set vect base=0,INT0 highest priority */
 312         mtdcr (uicsr, 0xFFFFFFFF);    /* clear all ints */
 313
 314         /* setup other implementation specific details */
 315         mtdcr (ecr, 0x60606000);
 316
 317         mtdcr (cntrl1, 0x000042C0);
 318
 319         if (IS_CAMERON) {
 320                 mtdcr (cntrl0, 0x01380000);
 321                 /* Setup the GPIOs */
 322                 writel (0x08008000, 0xEF600700);        /* Output states */
 323                 writel (0x00000000, 0xEF600718);        /* Open Drain control */
 324                 writel (0x68098000, 0xEF600704);        /* Output control */
 325         } else {
 326                 mtdcr (cntrl0,0x00080000);
 327                 /* Setup the GPIOs */
 328                 writel (0x08000000, 0xEF600700);        /* Output states */
 329                 writel (0x14000000, 0xEF600718);        /* Open Drain control */
 330                 writel (0x7C000000, 0xEF600704);        /* Output control */
 331         }
 332
 333         /* Code decompression disabled */
 334         mtdcr (kiar, kconf);
 335         mtdcr (kidr, 0x2B);
 336
 337         /* CPC0_ER: enable sleep mode of (currently) unused components */
 338         /* CPC0_FR: force unused components into sleep mode */
 339         mtdcr (cpmer, 0x3F800000);
 340         mtdcr (cpmfr, 0x14000000);
 341
 342         /* set PLB priority */
 343         mtdcr (0x87, 0x08000000);
 344
 345         /* --------------- DMA stuff ------------------------------------- */
 346         mtdcr (0x126, 0x49200000);
 347
 348 #ifndef IDE_USES_ISA_EMULATION
 349         cpldConfig_1 |= IDE_BOOSTING;   /* enable faster IDE */
 350         /* cpldConfig |= 0x01; */       /* enable 8.33MHz output, if *not* present on your baseboard */
 351         writeb (cpldConfig_1, CPLD_CONTROL_1);
 352 #endif
 353
 354 #ifdef CONFIG_ISP1161_PRESENT
 355         initUsbHost (&cpldConfig_1);
 356         writeb (cpldConfig_1, CPLD_CONTROL_1);
 357 #endif
 358         /* FIXME: for what must we do this */
 359         *(unsigned long *)0x79000080 = 0x0001;
 360         return(0);
 361 }
 362
 363 int misc_init_r (void)
 364 {
 365         char *s1;
 366         int i, xilinx_val;
 367         volatile char *xilinx_adr;
 368         xilinx_adr = (char *)0x79000102;
 369
 370         *xilinx_adr = 0x00;
 371
 372 /* customer settings ***************************************** */
 373 /*
 374         s1 = getenv ("function");
 375         if (s1) {
 376                 if (!strcmp (s1, "Rosho")) {
 377                         printf ("function 'Rosho' activated\n");
 378                         *xilinx_adr = 0x40;
 379                 }
 380                 else {
 381                         printf (">>>>>>>>>> function %s not recognized\n",s1);
 382                 }
 383         }
 384 */
 385
 386 /* individual settings ***************************************** */
 387         if ((s1 = getenv ("xilinx"))) {
 388                 i=0;
 389                 xilinx_val = 0;
 390                 while (i < 3 && s1[i]) {
 391                         if (s1[i] >= '0' && s1[i] <= '9')
 392                                 xilinx_val = (xilinx_val << 4) + s1[i] - '0';
 393                         else
 394                                 if (s1[i] >= 'A' && s1[i] <= 'F')
 395                                         xilinx_val = (xilinx_val << 4) + s1[i] - 'A' + 10;
 396                                 else
 397                                         if (s1[i] >= 'a' && s1[i] <= 'f')
 398                                                 xilinx_val = (xilinx_val << 4) + s1[i] - 'a' + 10;
 399                                         else {
 400                                                 xilinx_val = -1;
 401                                                 break;
 402                                         }
 403                         i++;
 404                 }
 405                 if (xilinx_val >= 0 && xilinx_val <=255 && i < 3) {
 406                         printf ("Xilinx: set to %s\n", s1);
 407                         *xilinx_adr = (unsigned char) xilinx_val;
 408                 } else
 409                         printf ("Xilinx: rejected value %s\n", s1);
 410         }
 411         return 0;
 412 }
 413
 414 /* -------------------------------------------------------------------------
 415  * printCSConfig
 416  *
 417  * Print some informations about chips select configurations
 418  * Only used while debugging.
 419  *
 420  * Params:
 421  * - No. of CS pin
 422  * - AP of this CS
 423  * - CR of this CS
 424  *
 425  * Returns
 426  * nothing
 427    ------------------------------------------------------------------------- */
 428
 429 #ifdef SC3_DEBUGOUT
 430 static void printCSConfig(int reg,unsigned long ap,unsigned long cr)
 431 {
 432         const char *bsize[4] = {"8","16","32","?"};
 433         const unsigned char banks[8] = {1, 2, 4, 8, 16, 32, 64, 128};
 434         const char *bankaccess[4] = {"disabled", "RO", "WO", "RW"};
 435
 436 #define CYCLE 30  /* time of one clock (based on 33MHz) */
 437
 438         printf("\nCS#%d",reg);
 439         if (!(cr & 0x00018000))
 440                 puts(" unused");
 441         else {
 442                 if (((cr&0xFFF00000U) & ((banks[(cr & 0x000E0000) >> 17]-1) << 20)))
 443                         puts(" Address is not multiple of bank size!");
 444
 445                 printf("\n -%s bit device",
 446                         bsize[(cr & 0x00006000) >> 13]);
 447                 printf(" at 0x%08lX", cr & 0xFFF00000U);
 448                 printf(" size: %u MB", banks[(cr & 0x000E0000) >> 17]);
 449                 printf(" rights: %s", bankaccess[(cr & 0x00018000) >> 15]);
 450                 if (ap & 0x80000000) {
 451                         printf("\n -Burst device (%luns/%luns)",
 452                                 (((ap & 0x7C000000) >> 26) + 1) * CYCLE,
 453                                 (((ap & 0x03800000) >> 23) + 1) * CYCLE);
 454                 } else {
 455                         printf("\n -Non burst device, active cycle %luns",
 456                                 (((ap & 0x7F800000) >> 23) + 1) * CYCLE);
 457                         printf("\n -Address setup %luns",
 458                                 ((ap & 0xC0000) >> 18) * CYCLE);
 459                         printf("\n -CS active to RD %luns/WR %luns",
 460                                 ((ap & 0x30000) >> 16) * CYCLE,
 461                                 ((ap & 0xC000) >> 14) * CYCLE);
 462                         printf("\n -WR to CS inactive %luns",
 463                                 ((ap & 0x3000) >> 12) * CYCLE);
 464                         printf("\n -Hold after access %luns",
 465                                 ((ap & 0xE00) >> 9) * CYCLE);
 466                         printf("\n -Ready is %sabled",
 467                                 ap & 0x100 ? "en" : "dis");
 468                 }
 469         }
 470 }
 471 #endif
 472
 473 #ifdef SC3_DEBUGOUT
 474
 475 static unsigned int ap[] = {pb0ap, pb1ap, pb2ap, pb3ap, pb4ap,
 476                                 pb5ap, pb6ap, pb7ap};
 477 static unsigned int cr[] = {pb0cr, pb1cr, pb2cr, pb3cr, pb4cr,
 478                                 pb5cr, pb6cr, pb7cr};
 479
 480 static int show_reg (int nr)
 481 {
 482         unsigned long ul1, ul2;
 483
 484         mtdcr (ebccfga, ap[nr]);
 485         ul1 = mfdcr (ebccfgd);
 486         mtdcr (ebccfga, cr[nr]);
 487         ul2 = mfdcr(ebccfgd);
 488         printCSConfig(nr, ul1, ul2);
 489         return 0;
 490 }
 491 #endif
 492
 493 int checkboard (void)
 494 {
 495 #ifdef SC3_DEBUGOUT
 496         unsigned long ul1;
 497         int     i;
 498
 499         for (i = 0; i < 8; i++) {
 500                 show_reg (i);
 501         }
 502
 503         mtdcr (ebccfga, epcr);
 504         ul1 = mfdcr (ebccfgd);
 505
 506         puts ("\nGeneral configuration:\n");
 507
 508         if (ul1 & 0x80000000)
 509                 printf(" -External Bus is always driven\n");
 510
 511         if (ul1 & 0x400000)
 512                 printf(" -CS signals are always driven\n");
 513
 514         if (ul1 & 0x20000)
 515                 printf(" -PowerDown after %lu clocks\n",
 516                         (ul1 & 0x1F000) >> 7);
 517
 518         switch (ul1 & 0xC0000)
 519         {
 520         case 0xC0000:
 521                 printf(" -No external master present\n");
 522                 break;
 523         case 0x00000:
 524                 printf(" -8 bit external master present\n");
 525                 break;
 526         case 0x40000:
 527                 printf(" -16 bit external master present\n");
 528                 break;
 529         case 0x80000:
 530                 printf(" -32 bit external master present\n");
 531                 break;
 532         }
 533
 534         switch (ul1 & 0x300000)
 535         {
 536         case 0x300000:
 537                 printf(" -Prefetch: Illegal setting!\n");
 538                 break;
 539         case 0x000000:
 540                 printf(" -1 doubleword prefetch\n");
 541                 break;
 542         case 0x100000:
 543                 printf(" -2 doublewords prefetch\n");
 544                 break;
 545         case 0x200000:
 546                 printf(" -4 doublewords prefetch\n");
 547                 break;
 548         }
 549         putc ('\n');
 550 #endif
 551         printf("Board: SolidCard III %s %s version.\n",
 552                 (IS_CAMERON ? "Cameron" : "Eurodesign"), CONFIG_SC3_VERSION);
 553         return 0;
 554 }
 555
 556 static int printSDRAMConfig(char reg, unsigned long cr)
 557 {
 558         const int bisize[8]={4, 8, 16, 32, 64, 128, 256, 0};
 559 #ifdef SC3_DEBUGOUT
 560         const char *basize[8]=
 561                 {"4", "8", "16", "32", "64", "128", "256", "Reserved"};
 562
 563         printf("SDRAM bank %d",reg);
 564
 565         if (!(cr & 0x01))
 566                 puts(" disabled\n");
 567         else {
 568                 printf(" at 0x%08lX, size %s MB",cr & 0xFFC00000,basize[(cr&0xE0000)>>17]);
 569                 printf(" mode %lu\n",((cr & 0xE000)>>13)+1);
 570         }
 571 #endif
 572
 573         if (cr & 0x01)
 574                 return(bisize[(cr & 0xE0000) >> 17]);
 575
 576         return 0;
 577 }
 578
 579 #ifdef SC3_DEBUGOUT
 580 static unsigned int mbcf[] = {mem_mb0cf, mem_mb1cf, mem_mb2cf, mem_mb3cf};
 581 #endif
 582
 583 phys_size_t initdram (int board_type)
 584 {
 585         unsigned int mems=0;
 586         unsigned long ul1;
 587
 588 #ifdef SC3_DEBUGOUT
 589         unsigned long ul2;
 590         int     i;
 591
 592         puts("\nSDRAM configuration:\n");
 593
 594         mtdcr (memcfga, mem_mcopt1);
 595         ul1 = mfdcr(memcfgd);
 596
 597         if (!(ul1 & 0x80000000)) {
 598                 puts(" Controller disabled\n");
 599                 return 0;
 600         }
 601         for (i = 0; i < 4; i++) {
 602                 mtdcr (memcfga, mbcf[i]);
 603                 ul1 = mfdcr (memcfgd);
 604                 mems += printSDRAMConfig (i, ul1);
 605         }
 606
 607         mtdcr (memcfga, mem_sdtr1);
 608         ul1 = mfdcr(memcfgd);
 609
 610         printf ("Timing:\n -CAS latency %lu\n", ((ul1 & 0x1800000) >> 23)+1);
 611         printf (" -Precharge %lu (PTA) \n", ((ul1 & 0xC0000) >> 18) + 1);
 612         printf (" -R/W to Precharge %lu (CTP)\n", ((ul1 & 0x30000) >> 16) + 1);
 613         printf (" -Leadoff %lu\n", ((ul1 & 0xC000) >> 14) + 1);
 614         printf (" -CAS to RAS %lu\n", ((ul1 & 0x1C) >> 2) + 4);
 615         printf (" -RAS to CAS %lu\n", ((ul1 & 0x3) + 1));
 616         puts ("Misc:\n");
 617         mtdcr (memcfga, mem_rtr);
 618         ul1 = mfdcr(memcfgd);
 619         printf (" -Refresh rate: %luns\n", (ul1 >> 16) * 7);
 620
 621         mtdcr(memcfga,mem_pmit);
 622         ul2=mfdcr(memcfgd);
 623
 624         mtdcr(memcfga,mem_mcopt1);
 625         ul1=mfdcr(memcfgd);
 626
 627         if (ul1 & 0x20000000)
 628                 printf(" -Power Down after: %luns\n",
 629                         ((ul2 & 0xFFC00000) >> 22) * 7);
 630         else
 631                 puts(" -Power Down disabled\n");
 632
 633         if (ul1 & 0x40000000)
 634                 printf(" -Self refresh feature active\n");
 635         else
 636                 puts(" -Self refresh disabled\n");
 637
 638         if (ul1 & 0x10000000)
 639                 puts(" -ECC enabled\n");
 640         else
 641                 puts(" -ECC disabled\n");
 642
 643         if (ul1 & 0x8000000)
 644                 puts(" -Using registered SDRAM\n");
 645
 646         if (!(ul1 & 0x6000000))
 647                 puts(" -Using 32 bit data width\n");
 648         else
 649                 puts(" -Illegal data width!\n");
 650
 651         if (ul1 & 0x400000)
 652                 puts(" -ECC drivers inactive\n");
 653         else
 654                 puts(" -ECC drivers active\n");
 655
 656         if (ul1 & 0x200000)
 657                 puts(" -Memory lines always active outputs\n");
 658         else
 659                 puts(" -Memory lines only at write cycles active outputs\n");
 660
 661         mtdcr (memcfga, mem_status);
 662         ul1 = mfdcr (memcfgd);
 663         if (ul1 & 0x80000000)
 664                 puts(" -SDRAM Controller ready\n");
 665         else
 666                 puts(" -SDRAM Controller not ready\n");
 667
 668         if (ul1 & 0x4000000)
 669                 puts(" -SDRAM in self refresh mode!\n");
 670
 671         return (mems * 1024 * 1024);
 672 #else
 673         mtdcr (memcfga, mem_mb0cf);
 674         ul1 = mfdcr (memcfgd);
 675         mems = printSDRAMConfig (0, ul1);
 676
 677         mtdcr (memcfga, mem_mb1cf);
 678         ul1 = mfdcr (memcfgd);
 679         mems += printSDRAMConfig (1, ul1);
 680
 681         mtdcr (memcfga, mem_mb2cf);
 682         ul1 = mfdcr(memcfgd);
 683         mems += printSDRAMConfig (2, ul1);
 684
 685         mtdcr (memcfga, mem_mb3cf);
 686         ul1 = mfdcr(memcfgd);
 687         mems += printSDRAMConfig (3, ul1);
 688
 689         return (mems * 1024 * 1024);
 690 #endif
 691 }
 692
 693 static void pci_solidcard3_fixup_irq (struct pci_controller *hose, pci_dev_t dev)
 694 {
 695 /*-------------------------------------------------------------------------+
 696  |             ,-.     ,-.        ,-.        ,-.        ,-.
 697  |   INTD# ----|B|-----|P|-.    ,-|P|-.    ,-| |-.    ,-|G|
 698  |             |R|     |C|  \  /  |C|  \  /  |E|  \  /  |r|
 699  |   INTC# ----|I|-----|1|-. `/---|1|-. `/---|t|-. `/---|a|
 700  |             |D|     |0|  \/    |0|  \/    |h|  \/    |f|
 701  |   INTB# ----|G|-----|4|-./`----|4|-./`----|e|-./`----|i|
 702  |             |E|     |+| /\     |+| /\     |r| /\     |k|
 703  |   INTA# ----| |-----| |-  `----| |-  `----| |-  `----| |
 704  |             `-'     `-'        `-'        `-'        `-'
 705  |   Slot      0       10         11         12         13
 706  |   REQ#              0          1          2          *
 707  |   GNT#              0          1          2          *
 708  +-------------------------------------------------------------------------*/
 709         unsigned char int_line = 0xff;
 710
 711         switch (PCI_DEV(dev)) {
 712         case 10:
 713                 int_line = 31; /* INT A */
 714                 POST_OUT(0x42);
 715                 break;
 716
 717         case 11:
 718                 int_line = 30; /* INT B */
 719                 POST_OUT(0x43);
 720                 break;
 721
 722         case 12:
 723                 int_line = 29; /* INT C */
 724                 POST_OUT(0x44);
 725                 break;
 726
 727         case 13:
 728                 int_line = 28; /* INT D */
 729                 POST_OUT(0x45);
 730                 break;
 731         }
 732         pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, int_line);
 733 }
 734
 735 extern void pci_405gp_init(struct pci_controller *hose);
 736 extern void pci_405gp_fixup_irq(struct pci_controller *hose, pci_dev_t dev);
 737 extern void pci_405gp_setup_bridge(struct pci_controller *hose, pci_dev_t dev,struct pci_config_table *entry);
 738 /*
 739  * The following table is used when there is a special need to setup a PCI device.
 740  * For every PCI device found in this table is called the given init function with given
 741  * parameters. So never let all IDs at PCI_ANY_ID. In this case any found device gets the same
 742  * parameters!
 743  *
 744 */
 745 static struct pci_config_table pci_solidcard3_config_table[] =
 746 {
 747 /* Host to PCI Bridge device (405GP) */
 748         {
 749                 vendor: 0x1014,
 750                 device: 0x0156,
 751                 class: PCI_CLASS_BRIDGE_HOST,
 752                 bus: 0,
 753                 dev: 0,
 754                 func: 0,
 755                 config_device: pci_405gp_setup_bridge
 756         },
 757         { }
 758 };
 759
 760 /*-------------------------------------------------------------------------+
 761  | pci_init_board (Called from pci_init() in drivers/pci/pci.c)
 762  |
 763  | Init the PCI part of the SolidCard III
 764  |
 765  | Params:
 766  * - Pointer to current PCI hose
 767  * - Current Device
 768  *
 769  * Returns
 770  * nothing
 771  +-------------------------------------------------------------------------*/
 772
 773 void pci_init_board(void)
 774 {
 775         POST_OUT(0x41);
 776 /*
 777  * we want the ptrs to RAM not flash (ie don't use init list)
 778  */
 779         hose.fixup_irq    = pci_solidcard3_fixup_irq;
 780         hose.config_table = pci_solidcard3_config_table;
 781         pci_405gp_init(&hose);
 782 }
 783
 784 int board_eth_init(bd_t *bis)
 785 {
 786         return pci_eth_init(bis);
 787 }