board/evb64260/eth.c

   1 /**************************************************************************
   2 Etherboot -  BOOTP/TFTP Bootstrap Program
   3 Skeleton NIC driver for Etherboot
   4 ***************************************************************************/
   5
   6 /*
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License as
   9  * published by the Free Software Foundation; either version 2, or (at
  10  * your option) any later version.
  11  */
  12
  13 /*
  14  * This file is a modified version from the Galileo polled mode
  15  * network driver for the ethernet contained within the GT64260
  16  * chip. It has been modified to fit into the U-Boot framework, from
  17  * the original (etherboot) setup.  Also, additional cleanup and features
  18  * were added.
  19  *
  20  * - Josh Huber <huber@mclx.com>
  21  */
  22
  23 #include <common.h>
  24 #include <malloc.h>
  25 #include <galileo/gt64260R.h>
  26 #include <galileo/core.h>
  27 #include <asm/cache.h>
  28 #include <miiphy.h>
  29 #include <net.h>
  30 #include <netdev.h>
  31
  32 #include "eth.h"
  33 #include "eth_addrtbl.h"
  34
  35 #if defined(CONFIG_CMD_NET) && defined(CONFIG_NET_MULTI)
  36
  37 #define GT6426x_ETH_BUF_SIZE    1536
  38
  39 /* if you like verbose output, turn this on! */
  40 #undef DEBUG
  41
  42 /* Restart autoneg if we detect link is up on phy init. */
  43
  44 /*
  45  * The GT doc's say that after Rst is deasserted, and the PHY
  46  * reports autoneg complete, it runs through its autoneg
  47  * procedures. This doesn't seem to be the case for MII
  48  * PHY's. To work around this check for link up && autoneg
  49  * complete when initilizing the port. If they are both set,
  50  * then restart PHY autoneg. Of course, it may be something
  51  * completly different.
  52  */
  53 #ifdef CONFIG_ETHER_PORT_MII
  54 # define RESTART_AUTONEG
  55 #endif
  56
  57 /* do this if you dont want to use snooping */
  58 #define USE_SOFTWARE_CACHE_MANAGEMENT
  59
  60 #ifdef USE_SOFTWARE_CACHE_MANAGEMENT
  61 #define FLUSH_DCACHE(a,b)                if(dcache_status()){clean_dcache_range((u32)(a),(u32)(b));}
  62 #define FLUSH_AND_INVALIDATE_DCACHE(a,b) if(dcache_status()){flush_dcache_range((u32)(a),(u32)(b));}
  63 #define INVALIDATE_DCACHE(a,b)           if(dcache_status()){invalidate_dcache_range((u32)(a),(u32)(b));}
  64 #else
  65 /* bummer - w/o flush, nothing works, even with snooping - FIXME */
  66 /* #define FLUSH_DCACHE(a,b) */
  67 #define FLUSH_DCACHE(a,b)                if(dcache_status()){clean_dcache_range((u32)(a),(u32)(b));}
  68 #define FLUSH_AND_INVALIDATE_DCACHE(a,b)
  69 #define INVALIDATE_DCACHE(a,b)
  70 #endif
  71 struct eth_dev_s {
  72         eth0_tx_desc_single *eth_tx_desc;
  73         eth0_rx_desc_single *eth_rx_desc;
  74         char *eth_tx_buffer;
  75         char *eth_rx_buffer[NR];
  76         int tdn, rdn;
  77         int dev;
  78         unsigned int reg_base;
  79 };
  80
  81
  82 #ifdef CONFIG_INTEL_LXT97X
  83 /* for intel LXT972 */
  84 static const char ether_port_phy_addr[3]={0,1,2};
  85 #else
  86 static const char ether_port_phy_addr[3]={4,5,6};
  87 #endif
  88
  89 /* MII PHY access routines are common for all i/f, use gal_ent0 */
  90 #define GT6426x_MII_DEVNAME     "gal_enet0"
  91
  92 int gt6426x_miiphy_read(const char *devname, unsigned char phy,
  93                 unsigned char reg, unsigned short *val);
  94
  95 static inline unsigned short
  96 miiphy_read_ret(unsigned short phy, unsigned short reg)
  97 {
  98     unsigned short val;
  99     gt6426x_miiphy_read(GT6426x_MII_DEVNAME,phy,reg,&val);
 100     return val;
 101 }
 102
 103
 104 /**************************************************************************
 105 RESET - Reset adapter
 106 ***************************************************************************/
 107 void
 108 gt6426x_eth_reset(void *v)
 109 {
 110         /*  we should do something here...
 111         struct eth_device *wp = (struct eth_device *)v;
 112         struct eth_dev_s *p = wp->priv;
 113         */
 114
 115         printf ("RESET\n");
 116         /* put the card in its initial state */
 117 }
 118
 119 static void gt6426x_handle_SMI(struct eth_dev_s *p, unsigned int icr)
 120 {
 121 #ifdef DEBUG
 122     printf("SMI interrupt: ");
 123
 124     if(icr&0x20000000) {
 125         printf("SMI done\n");
 126     }
 127 #endif
 128
 129     if(icr&0x10000000) {
 130         unsigned int psr;
 131         psr=GTREGREAD(ETHERNET0_PORT_STATUS_REGISTER + p->reg_base);
 132 #ifdef DEBUG
 133         printf("PHY state change:\n"
 134                "  GT:%s:%s:%s:%s\n",
 135                 psr&1?"100":" 10",
 136                 psr&8?" Link":"nLink",
 137                 psr&2?"FD":"HD",
 138                 psr&4?" FC":"nFC");
 139
 140 #ifdef CONFIG_INTEL_LXT97X /* non-standard mii reg (intel lxt972a) */
 141         {
 142         unsigned short mii_11;
 143         mii_11=miiphy_read_ret(ether_port_phy_addr[p->dev],0x11);
 144
 145         printf(" mii:%s:%s:%s:%s %s:%s %s\n",
 146                 mii_11&(1<<14)?"100":" 10",
 147                 mii_11&(1<<10)?" Link":"nLink",
 148                 mii_11&(1<<9)?"FD":"HD",
 149                 mii_11&(1<<4)?" FC":"nFC",
 150
 151                 mii_11&(1<<7)?"ANc":"ANnc",
 152                 mii_11&(1<<8)?"AN":"Manual",
 153                 ""
 154                 );
 155         }
 156 #endif /* CONFIG_INTEL_LXT97X */
 157 #endif /* DEBUG */
 158     }
 159 }
 160
 161 static int
 162 gt6426x_eth_receive(struct eth_dev_s *p,unsigned int icr)
 163 {
 164         int eth_len=0;
 165         char *eth_data;
 166
 167         eth0_rx_desc_single *rx = &p->eth_rx_desc[(p->rdn)];
 168
 169         INVALIDATE_DCACHE((unsigned int)rx,(unsigned int)(rx+1));
 170
 171         if (rx->command_status & 0x80000000) {
 172                 return 0; /* No packet received */
 173         }
 174
 175         eth_len = (unsigned int)
 176                 (rx->buff_size_byte_count) & 0x0000ffff;
 177         eth_data = (char *) p->eth_rx_buffer[p->rdn];
 178
 179 #ifdef DEBUG
 180         if (eth_len) {
 181                 printf ("%s: Recived %d byte Packet @ 0x%p\n",
 182                         __FUNCTION__, eth_len, eth_data);
 183         }
 184 #endif
 185         /*
 186          * packet is now in:
 187          * eth0_rx_buffer[RDN_ETH0];
 188          */
 189
 190         /* let the upper layer handle the packet */
 191         NetReceive ((uchar *)eth_data, eth_len);
 192
 193         rx->buff_size_byte_count = GT6426x_ETH_BUF_SIZE<<16;
 194
 195
 196         /* GT96100 Owner */
 197         rx->command_status = 0x80000000;
 198
 199         FLUSH_DCACHE((unsigned int)rx,(unsigned int)(rx+1));
 200
 201         p->rdn ++;
 202         if (p->rdn == NR) {p->rdn = 0;}
 203
 204         sync();
 205
 206         /* Start Rx*/
 207         GT_REG_WRITE (ETHERNET0_SDMA_COMMAND_REGISTER + p->reg_base, 0x00000080);
 208
 209 #ifdef DEBUG
 210         {
 211             int i;
 212             for (i=0;i<12;i++) {
 213                 printf(" %02x", eth_data[i]);
 214             }
 215         }
 216         printf(": %d bytes\n", eth_len);
 217 #endif
 218         INVALIDATE_DCACHE((unsigned int)eth_data,
 219                 (unsigned int)eth_data+eth_len);
 220         return eth_len;
 221 }
 222
 223 /**************************************************************************
 224 POLL - look for an rx frame, handle other conditions
 225 ***************************************************************************/
 226 int
 227 gt6426x_eth_poll(void *v)
 228 {
 229         struct eth_device *wp = (struct eth_device *)v;
 230         struct eth_dev_s *p = wp->priv;
 231         unsigned int icr=GTREGREAD(ETHERNET0_INTERRUPT_CAUSE_REGISTER + p->reg_base);
 232
 233         if(icr) {
 234             GT_REG_WRITE(ETHERNET0_INTERRUPT_CAUSE_REGISTER +p->reg_base, 0);
 235 #ifdef DEBUG
 236             printf("poll got ICR %08x\n", icr);
 237 #endif
 238             /* SMI done or PHY state change*/
 239             if(icr&0x30000000) gt6426x_handle_SMI(p, icr);
 240         }
 241         /* always process. We aren't using RX interrupts */
 242         return gt6426x_eth_receive(p, icr);
 243 }
 244
 245 /**************************************************************************
 246 TRANSMIT - Transmit a frame
 247 ***************************************************************************/
 248 int
 249 gt6426x_eth_transmit(void *v, volatile char *p, unsigned int s)
 250 {
 251         struct eth_device *wp = (struct eth_device *)v;
 252         struct eth_dev_s *dev = (struct eth_dev_s *)wp->priv;
 253 #ifdef DEBUG
 254         unsigned int old_command_stat,old_psr;
 255 #endif
 256         eth0_tx_desc_single *tx = &dev->eth_tx_desc[dev->tdn];
 257
 258         /* wait for tx to be ready */
 259         INVALIDATE_DCACHE((unsigned int)tx,(unsigned int)(tx+1));
 260         while (tx->command_status & 0x80000000) {
 261             int i;
 262             for(i=0;i<1000;i++);
 263                         INVALIDATE_DCACHE((unsigned int)tx,(unsigned int)(tx+1));
 264         }
 265
 266         GT_REG_WRITE (ETHERNET0_CURRENT_TX_DESCRIPTOR_POINTER0 + dev->reg_base,
 267                       (unsigned int)tx);
 268
 269 #ifdef DEBUG
 270         printf("copying to tx_buffer [%p], length %x, desc = %p\n",
 271                dev->eth_tx_buffer, s, dev->eth_tx_desc);
 272 #endif
 273         memcpy(dev->eth_tx_buffer, (char *) p, s);
 274
 275         tx->buff_pointer = (uchar *)dev->eth_tx_buffer;
 276         tx->bytecount_reserved = ((__u16)s) << 16;
 277
 278         /*    31 - own
 279          *    22 - gencrc
 280          * 18:16 - pad, last, first */
 281         tx->command_status = (1<<31) | (1<<22) | (7<<16);
 282 #if 0
 283         /* FEr #18 */
 284         tx->next_desc = NULL;
 285 #else
 286         tx->next_desc =
 287                 (struct eth0_tx_desc_struct *)
 288                 &dev->eth_tx_desc[(dev->tdn+1)%NT].bytecount_reserved;
 289
 290         /* cpu owned */
 291         dev->eth_tx_desc[(dev->tdn+1)%NT].command_status = (7<<16);     /* pad, last, first */
 292 #endif
 293
 294 #ifdef DEBUG
 295         old_command_stat=tx->command_status,
 296         old_psr=GTREGREAD(ETHERNET0_PORT_STATUS_REGISTER + dev->reg_base);
 297 #endif
 298
 299         FLUSH_DCACHE((unsigned int)tx,
 300                 (unsigned int)&dev->eth_tx_desc[(dev->tdn+2)%NT]);
 301
 302         FLUSH_DCACHE((unsigned int)dev->eth_tx_buffer,(unsigned int)dev->eth_tx_buffer+s);
 303
 304         GT_REG_WRITE(ETHERNET0_SDMA_COMMAND_REGISTER + dev->reg_base, 0x01000000);
 305
 306 #ifdef DEBUG
 307         {
 308             unsigned int command_stat=0;
 309             printf("cmd_stat: %08x PSR: %08x\n", old_command_stat, old_psr);
 310             /* wait for tx to be ready */
 311             do {
 312                 unsigned int psr=GTREGREAD(ETHERNET0_PORT_STATUS_REGISTER + dev->reg_base);
 313                 command_stat=tx->command_status;
 314                 if(command_stat!=old_command_stat || psr !=old_psr) {
 315                     printf("cmd_stat: %08x PSR: %08x\n", command_stat, psr);
 316                     old_command_stat = command_stat;
 317                     old_psr = psr;
 318                 }
 319                 /* gt6426x_eth0_poll(); */
 320             } while (command_stat & 0x80000000);
 321
 322             printf("sent %d byte frame\n", s);
 323
 324             if((command_stat & (3<<15)) == 3) {
 325                 printf("frame had error (stat=%08x)\n", command_stat);
 326             }
 327         }
 328 #endif
 329         return 0;
 330 }
 331
 332 /**************************************************************************
 333 DISABLE - Turn off ethernet interface
 334 ***************************************************************************/
 335 void
 336 gt6426x_eth_disable(void *v)
 337 {
 338         struct eth_device *wp = (struct eth_device *)v;
 339         struct eth_dev_s *p = (struct eth_dev_s *)wp->priv;
 340
 341         GT_REG_WRITE(ETHERNET0_SDMA_COMMAND_REGISTER + p->reg_base, 0x80008000);
 342 }
 343
 344 /**************************************************************************
 345 MII utilities - write: write to an MII register via SMI
 346 ***************************************************************************/
 347 int
 348 gt6426x_miiphy_write(const char *devname, unsigned char phy,
 349                 unsigned char reg, unsigned short data)
 350 {
 351     unsigned int temp= (reg<<21) | (phy<<16) | data;
 352
 353     while(GTREGREAD(ETHERNET_SMI_REGISTER) & (1<<28));  /* wait for !Busy */
 354
 355     GT_REG_WRITE(ETHERNET_SMI_REGISTER, temp);
 356     return 0;
 357 }
 358
 359 /**************************************************************************
 360 MII utilities - read: read from an MII register via SMI
 361 ***************************************************************************/
 362 int
 363 gt6426x_miiphy_read(const char *devname, unsigned char phy,
 364                 unsigned char reg, unsigned short *val)
 365 {
 366     unsigned int temp= (reg<<21) | (phy<<16) | 1<<26;
 367
 368     while(GTREGREAD(ETHERNET_SMI_REGISTER) & (1<<28));  /* wait for !Busy */
 369
 370     GT_REG_WRITE(ETHERNET_SMI_REGISTER, temp);
 371
 372     while(1) {
 373         temp=GTREGREAD(ETHERNET_SMI_REGISTER);
 374         if(temp & (1<<27)) break;               /* wait for ReadValid */
 375     }
 376     *val = temp & 0xffff;
 377
 378     return 0;
 379 }
 380
 381 #ifdef DEBUG
 382 /**************************************************************************
 383 MII utilities - dump mii registers
 384 ***************************************************************************/
 385 static void
 386 gt6426x_dump_mii(bd_t *bis, unsigned short phy)
 387 {
 388         printf("mii reg 0 - 3:   %04x %04x %04x %04x\n",
 389                 miiphy_read_ret(phy, 0x0),
 390                 miiphy_read_ret(phy, 0x1),
 391                 miiphy_read_ret(phy, 0x2),
 392                 miiphy_read_ret(phy, 0x3)
 393                 );
 394         printf("        4 - 7:   %04x %04x %04x %04x\n",
 395                 miiphy_read_ret(phy, 0x4),
 396                 miiphy_read_ret(phy, 0x5),
 397                 miiphy_read_ret(phy, 0x6),
 398                 miiphy_read_ret(phy, 0x7)
 399                 );
 400         printf("        8:       %04x\n",
 401                 miiphy_read_ret(phy, 0x8)
 402                 );
 403         printf("        16-19:   %04x %04x %04x %04x\n",
 404                 miiphy_read_ret(phy, 0x10),
 405                 miiphy_read_ret(phy, 0x11),
 406                 miiphy_read_ret(phy, 0x12),
 407                 miiphy_read_ret(phy, 0x13)
 408                 );
 409         printf("        20,30:   %04x %04x\n",
 410                 miiphy_read_ret(phy, 20),
 411                 miiphy_read_ret(phy, 30)
 412                 );
 413 }
 414 #endif
 415
 416 #ifdef RESTART_AUTONEG
 417
 418 /* If link is up && autoneg compleate, and if
 419  * GT and PHY disagree about link capabilitys,
 420  * restart autoneg - something screwy with FD/HD
 421  * unless we do this. */
 422 static void
 423 check_phy_state(struct eth_dev_s *p)
 424 {
 425         int bmsr = miiphy_read_ret(ether_port_phy_addr[p->dev], PHY_BMSR);
 426         int psr = GTREGREAD(ETHERNET0_PORT_STATUS_REGISTER + p->reg_base);
 427
 428         if ((psr & 1<<3) && (bmsr & PHY_BMSR_LS)) {
 429                 int nego = miiphy_read_ret(ether_port_phy_addr[p->dev], PHY_ANAR) &
 430                                 miiphy_read_ret(ether_port_phy_addr[p->dev], PHY_ANLPAR);
 431                 int want;
 432
 433                 if (nego & PHY_ANLPAR_TXFD) {
 434                         want = 0x3;
 435                         printf("MII: 100Base-TX, Full Duplex\n");
 436                 } else if (nego & PHY_ANLPAR_TX) {
 437                         want = 0x1;
 438                         printf("MII: 100Base-TX, Half Duplex\n");
 439                 } else if (nego & PHY_ANLPAR_10FD) {
 440                         want = 0x2;
 441                         printf("MII: 10Base-T, Full Duplex\n");
 442                 } else if (nego & PHY_ANLPAR_10) {
 443                         want = 0x0;
 444                         printf("MII: 10Base-T, Half Duplex\n");
 445                 } else {
 446                         printf("MII: Unknown link-foo! %x\n", nego);
 447                         return;
 448                 }
 449
 450                 if ((psr & 0x3) != want) {
 451                         printf("MII: GT thinks %x, PHY thinks %x, restarting autoneg..\n",
 452                                         psr & 0x3, want);
 453                         miiphy_write(GT6426x_MII_DEVNAME,ether_port_phy_addr[p->dev],0,
 454                                         miiphy_read_ret(ether_port_phy_addr[p->dev],0) | (1<<9));
 455                         udelay(10000);  /* the EVB's GT takes a while to notice phy
 456                                            went down and up */
 457                 }
 458         }
 459 }
 460 #endif
 461
 462 /**************************************************************************
 463 PROBE - Look for an adapter, this routine's visible to the outside
 464 ***************************************************************************/
 465 int
 466 gt6426x_eth_probe(void *v, bd_t *bis)
 467 {
 468         struct eth_device *wp = (struct eth_device *)v;
 469         struct eth_dev_s *p = (struct eth_dev_s *)wp->priv;
 470         int dev = p->dev;
 471         unsigned int reg_base = p->reg_base;
 472         unsigned long temp;
 473         int i;
 474
 475         if (( dev < 0 ) || ( dev >= GAL_ETH_DEVS ))
 476         {       /* This should never happen */
 477                 printf("%s: Invalid device %d\n", __FUNCTION__, dev );
 478                 return 0;
 479         }
 480
 481 #ifdef DEBUG
 482         printf ("%s: initializing %s\n", __FUNCTION__, wp->name );
 483         printf ("\nCOMM_CONTROL = %08x , COMM_CONF = %08x\n",
 484                 GTREGREAD(COMM_UNIT_ARBITER_CONTROL),
 485                 GTREGREAD(COMM_UNIT_ARBITER_CONFIGURATION_REGISTER));
 486 #endif
 487
 488         /* clear MIB counters */
 489         for(i=0;i<255; i++)
 490             temp=GTREGREAD(ETHERNET0_MIB_COUNTER_BASE + reg_base +i);
 491
 492 #ifdef CONFIG_INTEL_LXT97X
 493         /* for intel LXT972 */
 494
 495         /* led 1: 0x1=txact
 496            led 2: 0xc=link/rxact
 497            led 3: 0x2=rxact (N/C)
 498            strch: 0,2=30 ms, enable */
 499         miiphy_write(GT6426x_MII_DEVNAME,ether_port_phy_addr[p->dev], 20, 0x1c22);
 500
 501         /* 2.7ns port rise time */
 502         /*miiphy_write(ether_port_phy_addr[p->dev], 30, 0x0<<10); */
 503 #else
 504         /* already set up in mpsc.c */
 505         /*GT_REG_WRITE(MAIN_ROUTING_REGISTER, 0x7ffe38);        /  b400 */
 506
 507         /* already set up in sdram_init.S... */
 508         /* MPSC0, MPSC1, RMII */
 509         /*GT_REG_WRITE(SERIAL_PORT_MULTIPLEX, 0x1102);          /  f010 */
 510 #endif
 511         GT_REG_WRITE(ETHERNET_PHY_ADDRESS_REGISTER,
 512              ether_port_phy_addr[0]     |
 513             (ether_port_phy_addr[1]<<5) |
 514             (ether_port_phy_addr[2]<<10));                      /* 2000 */
 515
 516         /* 13:12 -   10: 4x64bit burst  (cache line size = 32 bytes)
 517          *    9  -    1: RIFB - interrupt on frame boundaries only
 518          *  6:7  -   00: big endian rx and tx
 519          *  5:2  - 1111: 15 retries */
 520         GT_REG_WRITE(ETHERNET0_SDMA_CONFIGURATION_REGISTER + reg_base,
 521                 (2<<12) | (1<<9) | (0xf<<2) );                  /* 2440 */
 522
 523 #ifndef USE_SOFTWARE_CACHE_MANAGEMENT
 524         /* enable rx/tx desc/buffer cache snoop */
 525         GT_REG_READ(ETHERNET_0_ADDRESS_CONTROL_LOW + dev*0x20,
 526                 &temp);                                         /* f200 */
 527         temp|= (1<<6)| (1<<14)| (1<<22)| (1<<30);
 528         GT_REG_WRITE(ETHERNET_0_ADDRESS_CONTROL_LOW + dev*0x20,
 529                 temp);
 530 #endif
 531
 532         /* 31  28 27  24 23  20 19  16
 533          *  0000   0000   0000   0000   [0004]
 534          * 15  12 11  8   7  4   3  0
 535          *  1000   1101   0000   0000   [4d00]
 536          *    20 - 0=MII 1=RMII
 537          *    19 - 0=speed autoneg
 538          * 15:14 - framesize 1536 (GT6426x_ETH_BUF_SIZE)
 539          *    11 - no force link pass
 540          *    10 - 1=disable fctl autoneg
 541          *     8 - override prio ?? */
 542         temp = 0x00004d00;
 543 #ifndef CONFIG_ETHER_PORT_MII
 544         temp |= (1<<20);        /* RMII */
 545 #endif
 546         /* set En */
 547         GT_REG_WRITE(ETHERNET0_PORT_CONFIGURATION_EXTEND_REGISTER + reg_base,
 548                      temp);                             /* 2408 */
 549
 550         /* hardcode E1 also? */
 551         /* -- according to dox, this is safer due to extra pulldowns? */
 552         if (dev<2) {
 553         GT_REG_WRITE(ETHERNET0_PORT_CONFIGURATION_EXTEND_REGISTER + (dev+1) * 0x400,
 554                      temp);                             /* 2408 */
 555         }
 556
 557         /* wake up MAC */                                /* 2400 */
 558         GT_REG_READ(ETHERNET0_PORT_CONFIGURATION_REGISTER + reg_base, &temp);
 559         temp |= (1<<7);         /* enable port */
 560 #ifdef CONFIG_GT_USE_MAC_HASH_TABLE
 561         temp |= (1<<12);        /* hash size 1/2k */
 562 #else
 563         temp |= 1;              /* promisc */
 564 #endif
 565         GT_REG_WRITE(ETHERNET0_PORT_CONFIGURATION_REGISTER + reg_base, temp);
 566                                                         /* 2400 */
 567
 568 #ifdef RESTART_AUTONEG
 569         check_phy_state(p);
 570 #endif
 571
 572         printf("%s: Waiting for link up..\n", wp->name);
 573         temp = 10 * 1000;
 574         /* wait for link back up */
 575         while(!(GTREGREAD(ETHERNET0_PORT_STATUS_REGISTER + reg_base) & 8)
 576                         && (--temp > 0)){
 577             udelay(1000);       /* wait 1 ms */
 578         }
 579         if ( temp == 0) {
 580                 printf("%s: Failed!\n", wp->name);
 581                 return (0);
 582         }
 583
 584         printf("%s: OK!\n", wp->name);
 585
 586         p->tdn = 0;
 587         p->rdn = 0;
 588         p->eth_tx_desc[p->tdn].command_status = 0;
 589
 590         /* Initialize Rx Side */
 591         for (temp = 0; temp < NR; temp++) {
 592                 p->eth_rx_desc[temp].buff_pointer = (uchar *)p->eth_rx_buffer[temp];
 593                 p->eth_rx_desc[temp].buff_size_byte_count = GT6426x_ETH_BUF_SIZE<<16;
 594
 595                 /* GT96100 Owner */
 596                 p->eth_rx_desc[temp].command_status = 0x80000000;
 597                 p->eth_rx_desc[temp].next_desc =
 598                         (struct eth0_rx_desc_struct *)
 599                         &p->eth_rx_desc[(temp+1)%NR].buff_size_byte_count;
 600         }
 601
 602         FLUSH_DCACHE((unsigned int)&p->eth_tx_desc[0],
 603                      (unsigned int)&p->eth_tx_desc[NR]);
 604         FLUSH_DCACHE((unsigned int)&p->eth_rx_desc[0],
 605                      (unsigned int)&p->eth_rx_desc[NR]);
 606
 607         GT_REG_WRITE(ETHERNET0_CURRENT_TX_DESCRIPTOR_POINTER0 + reg_base,
 608                       (unsigned int) p->eth_tx_desc);
 609         GT_REG_WRITE(ETHERNET0_FIRST_RX_DESCRIPTOR_POINTER0 + reg_base,
 610                       (unsigned int) p->eth_rx_desc);
 611         GT_REG_WRITE(ETHERNET0_CURRENT_RX_DESCRIPTOR_POINTER0 + reg_base,
 612                       (unsigned int) p->eth_rx_desc);
 613
 614 #ifdef DEBUG
 615         printf ("\nRx descriptor pointer is %08x %08x\n",
 616                 GTREGREAD(ETHERNET0_FIRST_RX_DESCRIPTOR_POINTER0 + reg_base),
 617                 GTREGREAD(ETHERNET0_CURRENT_RX_DESCRIPTOR_POINTER0 + reg_base));
 618         printf ("\n\n%08x %08x\n",
 619                 (unsigned int)p->eth_rx_desc,p->eth_rx_desc[0].command_status);
 620
 621         printf ("Descriptor dump:\n");
 622         printf ("cmd status: %08x\n",p->eth_rx_desc[0].command_status);
 623         printf ("byte_count: %08x\n",p->eth_rx_desc[0].buff_size_byte_count);
 624         printf ("buff_ptr: %08x\n",(unsigned int)p->eth_rx_desc[0].buff_pointer);
 625         printf ("next_desc: %08x\n\n",(unsigned int)p->eth_rx_desc[0].next_desc);
 626         printf ("%08x\n",*(unsigned int *) ((unsigned int)p->eth_rx_desc + 0x0));
 627         printf ("%08x\n",*(unsigned int *) ((unsigned int)p->eth_rx_desc + 0x4));
 628         printf ("%08x\n",*(unsigned int *) ((unsigned int)p->eth_rx_desc + 0x8));
 629         printf ("%08x\n\n",
 630                 *(unsigned int *) ((unsigned int)p->eth_rx_desc + 0xc));
 631 #endif
 632
 633 #ifdef DEBUG
 634         gt6426x_dump_mii(bis,ether_port_phy_addr[p->dev]);
 635 #endif
 636
 637 #ifdef CONFIG_GT_USE_MAC_HASH_TABLE
 638         {
 639                 unsigned int hashtable_base;
 640             u8 *b = (u8 *)(wp->enetaddr);
 641                 u32 macH, macL;
 642
 643                 /* twist the MAC up into the way the discovery wants it */
 644                 macH= (b[0]<<8) | b[1];
 645             macL= (b[2]<<24) | (b[3]<<16) | (b[4]<<8) | b[5];
 646
 647             /* mode 0, size 0x800 */
 648             hashtable_base =initAddressTable(dev,0,1);
 649
 650             if(!hashtable_base) {
 651                         printf("initAddressTable failed\n");
 652                         return 0;
 653             }
 654
 655             addAddressTableEntry(dev, macH, macL, 1, 0);
 656             GT_REG_WRITE(ETHERNET0_HASH_TABLE_POINTER_REGISTER + reg_base,
 657                     hashtable_base);
 658         }
 659 #endif
 660
 661         /* Start Rx*/
 662         GT_REG_WRITE(ETHERNET0_SDMA_COMMAND_REGISTER + reg_base, 0x00000080);
 663         printf("%s: gt6426x eth device %d init success \n", wp->name, dev );
 664         return 1;
 665 }
 666
 667 /* enter all the galileo ethernet devs into MULTI-BOOT */
 668 void
 669 gt6426x_eth_initialize(bd_t *bis)
 670 {
 671         struct eth_device *dev;
 672         struct eth_dev_s *p;
 673         int devnum, x, temp;
 674         char *s, *e, buf[64];
 675
 676 #ifdef DEBUG
 677         printf( "\n%s\n", __FUNCTION );
 678 #endif
 679
 680         for (devnum = 0; devnum < GAL_ETH_DEVS; devnum++) {
 681                 dev = calloc(sizeof(*dev), 1);
 682                 if (!dev) {
 683                         printf( "%s: gal_enet%d allocation failure, %s\n",
 684                                         __FUNCTION__, devnum, "eth_device structure");
 685                         return;
 686                 }
 687
 688                 /* must be less than NAMESIZE (16) */
 689                 sprintf(dev->name, "gal_enet%d", devnum);
 690
 691 #ifdef DEBUG
 692                 printf( "Initializing %s\n", dev->name );
 693 #endif
 694
 695                 /* Extract the MAC address from the environment */
 696                 switch (devnum)
 697                 {
 698                         case 0: s = "ethaddr"; break;
 699 #if (GAL_ETH_DEVS > 1)
 700                         case 1: s = "eth1addr"; break;
 701 #endif
 702 #if (GAL_ETH_DEVS > 2)
 703                         case 2: s = "eth2addr"; break;
 704 #endif
 705                         default: /* this should never happen */
 706                                 printf( "%s: Invalid device number %d\n",
 707                                                 __FUNCTION__, devnum );
 708                                 return;
 709                 }
 710
 711                 temp = getenv_f(s, buf, sizeof(buf));
 712                 s = (temp > 0) ? buf : NULL;
 713
 714 #ifdef DEBUG
 715                 printf ("Setting MAC %d to %s\n", devnum, s );
 716 #endif
 717                 for (x = 0; x < 6; ++x) {
 718                         dev->enetaddr[x] = s ? simple_strtoul(s, &e, 16) : 0;
 719                         if (s)
 720                                 s = (*e) ? e+1 : e;
 721                 }
 722
 723                 dev->init = (void*)gt6426x_eth_probe;
 724                 dev->halt = (void*)gt6426x_eth_reset;
 725                 dev->send = (void*)gt6426x_eth_transmit;
 726                 dev->recv = (void*)gt6426x_eth_poll;
 727
 728                 p = calloc( sizeof(*p), 1 );
 729                 dev->priv = (void*)p;
 730                 if (!p)
 731                 {
 732                         printf( "%s: %s allocation failure, %s\n",
 733                                         __FUNCTION__, dev->name, "Private Device Structure");
 734                         free(dev);
 735                         return;
 736                 }
 737
 738                 p->dev = devnum;
 739                 p->tdn=0;
 740                 p->rdn=0;
 741                 p->reg_base = devnum * ETHERNET_PORTS_DIFFERENCE_OFFSETS;
 742
 743                 p->eth_tx_desc =
 744                         (eth0_tx_desc_single *)
 745                         (((unsigned int) malloc(sizeof (eth0_tx_desc_single) *
 746                                                 (NT+1)) & 0xfffffff0) + 0x10);
 747                 if (!p)
 748                 {
 749                         printf( "%s: %s allocation failure, %s\n",
 750                                         __FUNCTION__, dev->name, "Tx Descriptor");
 751                         free(dev);
 752                         return;
 753                 }
 754
 755                 p->eth_rx_desc =
 756                         (eth0_rx_desc_single *)
 757                         (((unsigned int) malloc(sizeof (eth0_rx_desc_single) *
 758                                                 (NR+1)) & 0xfffffff0) + 0x10);
 759                 if (!p->eth_rx_desc)
 760                 {
 761                         printf( "%s: %s allocation failure, %s\n",
 762                                         __FUNCTION__, dev->name, "Rx Descriptor");
 763                         free(dev);
 764                         free(p);
 765                         return;
 766                 }
 767
 768                 p->eth_tx_buffer =
 769                         (char *) (((unsigned int) malloc(GT6426x_ETH_BUF_SIZE) & 0xfffffff0) + 0x10);
 770                 if (!p->eth_tx_buffer)
 771                 {
 772                         printf( "%s: %s allocation failure, %s\n",
 773                                         __FUNCTION__, dev->name, "Tx Bufffer");
 774                         free(dev);
 775                         free(p);
 776                         free(p->eth_rx_desc);
 777                         return;
 778                 }
 779
 780                 for (temp = 0 ; temp < NR ; temp ++) {
 781                         p->eth_rx_buffer[temp] =
 782                                 (char *)
 783                                 (((unsigned int) malloc(GT6426x_ETH_BUF_SIZE) & 0xfffffff0) + 0x10);
 784                         if (!p->eth_rx_buffer[temp])
 785                         {
 786                                 printf( "%s: %s allocation failure, %s\n",
 787                                                 __FUNCTION__, dev->name, "Rx Buffers");
 788                                 free(dev);
 789                                 free(p);
 790                                 free(p->eth_tx_buffer);
 791                                 free(p->eth_rx_desc);
 792                                 free(p->eth_tx_desc);
 793                                 while (temp >= 0)
 794                                         free(p->eth_rx_buffer[--temp]);
 795                                 return;
 796                         }
 797                 }
 798
 799
 800                 eth_register(dev);
 801 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
 802                 miiphy_register(dev->name,
 803                                 gt6426x_miiphy_read, gt6426x_miiphy_write);
 804 #endif
 805         }
 806
 807 }
 808 #endif