1 /* 2 dm9000.c: Version 1.2 12/15/2003 3 4 A Davicom DM9000 ISA NIC fast Ethernet driver for Linux. 5 Copyright (C) 1997 Sten Wang 6 7 * SPDX-License-Identifier: GPL-2.0+ 8 9 (C)Copyright 1997-1998 DAVICOM Semiconductor,Inc. All Rights Reserved. 10 11 V0.11 06/20/2001 REG_0A bit3=1, default enable BP with DA match 12 06/22/2001 Support DM9801 progrmming 13 E3: R25 = ((R24 + NF) & 0x00ff) | 0xf000 14 E4: R25 = ((R24 + NF) & 0x00ff) | 0xc200 15 R17 = (R17 & 0xfff0) | NF + 3 16 E5: R25 = ((R24 + NF - 3) & 0x00ff) | 0xc200 17 R17 = (R17 & 0xfff0) | NF 18 19 v1.00 modify by simon 2001.9.5 20 change for kernel 2.4.x 21 22 v1.1 11/09/2001 fix force mode bug 23 24 v1.2 03/18/2003 Weilun Huang <weilun_huang@davicom.com.tw>: 25 Fixed phy reset. 26 Added tx/rx 32 bit mode. 27 Cleaned up for kernel merge. 28 29 -------------------------------------- 30 31 12/15/2003 Initial port to u-boot by 32 Sascha Hauer <saschahauer@web.de> 33 34 06/03/2008 Remy Bohmer <linux@bohmer.net> 35 - Fixed the driver to work with DM9000A. 36 (check on ISR receive status bit before reading the 37 FIFO as described in DM9000 programming guide and 38 application notes) 39 - Added autodetect of databus width. 40 - Made debug code compile again. 41 - Adapt eth_send such that it matches the DM9000* 42 application notes. Needed to make it work properly 43 for DM9000A. 44 - Adapted reset procedure to match DM9000 application 45 notes (i.e. double reset) 46 - some minor code cleanups 47 These changes are tested with DM9000{A,EP,E} together 48 with a 200MHz Atmel AT91SAM9261 core 49 50 TODO: external MII is not functional, only internal at the moment. 51 */ 52 53 #include <common.h> 54 #include <command.h> 55 #include <net.h> 56 #include <asm/io.h> 57 #include <dm9000.h> 58 59 #include "dm9000x.h" 60 61 /* Board/System/Debug information/definition ---------------- */ 62 63 /* #define CONFIG_DM9000_DEBUG */ 64 65 #ifdef CONFIG_DM9000_DEBUG 66 #define DM9000_DBG(fmt,args...) printf(fmt, ##args) 67 #define DM9000_DMP_PACKET(func,packet,length) \ 68 do { \ 69 int i; \ 70 printf("%s: length: %d\n", func, length); \ 71 for (i = 0; i < length; i++) { \ 72 if (i % 8 == 0) \ 73 printf("\n%s: %02x: ", func, i); \ 74 printf("%02x ", ((unsigned char *) packet)[i]); \ 75 } printf("\n"); \ 76 } while(0) 77 #else 78 #define DM9000_DBG(fmt,args...) 79 #define DM9000_DMP_PACKET(func,packet,length) 80 #endif 81 82 /* Structure/enum declaration ------------------------------- */ 83 typedef struct board_info { 84 u32 runt_length_counter; /* counter: RX length < 64byte */ 85 u32 long_length_counter; /* counter: RX length > 1514byte */ 86 u32 reset_counter; /* counter: RESET */ 87 u32 reset_tx_timeout; /* RESET caused by TX Timeout */ 88 u32 reset_rx_status; /* RESET caused by RX Statsus wrong */ 89 u16 tx_pkt_cnt; 90 u16 queue_start_addr; 91 u16 dbug_cnt; 92 u8 phy_addr; 93 u8 device_wait_reset; /* device state */ 94 unsigned char srom[128]; 95 void (*outblk)(volatile void *data_ptr, int count); 96 void (*inblk)(void *data_ptr, int count); 97 void (*rx_status)(u16 *RxStatus, u16 *RxLen); 98 struct eth_device netdev; 99 } board_info_t; 100 static board_info_t dm9000_info; 101 102 103 /* function declaration ------------------------------------- */ 104 static int dm9000_probe(void); 105 static u16 dm9000_phy_read(int); 106 static void dm9000_phy_write(int, u16); 107 static u8 DM9000_ior(int); 108 static void DM9000_iow(int reg, u8 value); 109 110 /* DM9000 network board routine ---------------------------- */ 111 #ifndef CONFIG_DM9000_BYTE_SWAPPED 112 #define DM9000_outb(d,r) writeb(d, (volatile u8 *)(r)) 113 #define DM9000_outw(d,r) writew(d, (volatile u16 *)(r)) 114 #define DM9000_outl(d,r) writel(d, (volatile u32 *)(r)) 115 #define DM9000_inb(r) readb((volatile u8 *)(r)) 116 #define DM9000_inw(r) readw((volatile u16 *)(r)) 117 #define DM9000_inl(r) readl((volatile u32 *)(r)) 118 #else 119 #define DM9000_outb(d, r) __raw_writeb(d, r) 120 #define DM9000_outw(d, r) __raw_writew(d, r) 121 #define DM9000_outl(d, r) __raw_writel(d, r) 122 #define DM9000_inb(r) __raw_readb(r) 123 #define DM9000_inw(r) __raw_readw(r) 124 #define DM9000_inl(r) __raw_readl(r) 125 #endif 126 127 #ifdef CONFIG_DM9000_DEBUG 128 static void 129 dump_regs(void) 130 { 131 DM9000_DBG("\n"); 132 DM9000_DBG("NCR (0x00): %02x\n", DM9000_ior(0)); 133 DM9000_DBG("NSR (0x01): %02x\n", DM9000_ior(1)); 134 DM9000_DBG("TCR (0x02): %02x\n", DM9000_ior(2)); 135 DM9000_DBG("TSRI (0x03): %02x\n", DM9000_ior(3)); 136 DM9000_DBG("TSRII (0x04): %02x\n", DM9000_ior(4)); 137 DM9000_DBG("RCR (0x05): %02x\n", DM9000_ior(5)); 138 DM9000_DBG("RSR (0x06): %02x\n", DM9000_ior(6)); 139 DM9000_DBG("ISR (0xFE): %02x\n", DM9000_ior(DM9000_ISR)); 140 DM9000_DBG("\n"); 141 } 142 #endif 143 144 static void dm9000_outblk_8bit(volatile void *data_ptr, int count) 145 { 146 int i; 147 for (i = 0; i < count; i++) 148 DM9000_outb((((u8 *) data_ptr)[i] & 0xff), DM9000_DATA); 149 } 150 151 static void dm9000_outblk_16bit(volatile void *data_ptr, int count) 152 { 153 int i; 154 u32 tmplen = (count + 1) / 2; 155 156 for (i = 0; i < tmplen; i++) 157 DM9000_outw(((u16 *) data_ptr)[i], DM9000_DATA); 158 } 159 static void dm9000_outblk_32bit(volatile void *data_ptr, int count) 160 { 161 int i; 162 u32 tmplen = (count + 3) / 4; 163 164 for (i = 0; i < tmplen; i++) 165 DM9000_outl(((u32 *) data_ptr)[i], DM9000_DATA); 166 } 167 168 static void dm9000_inblk_8bit(void *data_ptr, int count) 169 { 170 int i; 171 for (i = 0; i < count; i++) 172 ((u8 *) data_ptr)[i] = DM9000_inb(DM9000_DATA); 173 } 174 175 static void dm9000_inblk_16bit(void *data_ptr, int count) 176 { 177 int i; 178 u32 tmplen = (count + 1) / 2; 179 180 for (i = 0; i < tmplen; i++) 181 ((u16 *) data_ptr)[i] = DM9000_inw(DM9000_DATA); 182 } 183 static void dm9000_inblk_32bit(void *data_ptr, int count) 184 { 185 int i; 186 u32 tmplen = (count + 3) / 4; 187 188 for (i = 0; i < tmplen; i++) 189 ((u32 *) data_ptr)[i] = DM9000_inl(DM9000_DATA); 190 } 191 192 static void dm9000_rx_status_32bit(u16 *RxStatus, u16 *RxLen) 193 { 194 u32 tmpdata; 195 196 DM9000_outb(DM9000_MRCMD, DM9000_IO); 197 198 tmpdata = DM9000_inl(DM9000_DATA); 199 *RxStatus = __le16_to_cpu(tmpdata); 200 *RxLen = __le16_to_cpu(tmpdata >> 16); 201 } 202 203 static void dm9000_rx_status_16bit(u16 *RxStatus, u16 *RxLen) 204 { 205 DM9000_outb(DM9000_MRCMD, DM9000_IO); 206 207 *RxStatus = __le16_to_cpu(DM9000_inw(DM9000_DATA)); 208 *RxLen = __le16_to_cpu(DM9000_inw(DM9000_DATA)); 209 } 210 211 static void dm9000_rx_status_8bit(u16 *RxStatus, u16 *RxLen) 212 { 213 DM9000_outb(DM9000_MRCMD, DM9000_IO); 214 215 *RxStatus = 216 __le16_to_cpu(DM9000_inb(DM9000_DATA) + 217 (DM9000_inb(DM9000_DATA) << 8)); 218 *RxLen = 219 __le16_to_cpu(DM9000_inb(DM9000_DATA) + 220 (DM9000_inb(DM9000_DATA) << 8)); 221 } 222 223 /* 224 Search DM9000 board, allocate space and register it 225 */ 226 int 227 dm9000_probe(void) 228 { 229 u32 id_val; 230 id_val = DM9000_ior(DM9000_VIDL); 231 id_val |= DM9000_ior(DM9000_VIDH) << 8; 232 id_val |= DM9000_ior(DM9000_PIDL) << 16; 233 id_val |= DM9000_ior(DM9000_PIDH) << 24; 234 if (id_val == DM9000_ID) { 235 printf("dm9000 i/o: 0x%x, id: 0x%x \n", CONFIG_DM9000_BASE, 236 id_val); 237 return 0; 238 } else { 239 printf("dm9000 not found at 0x%08x id: 0x%08x\n", 240 CONFIG_DM9000_BASE, id_val); 241 return -1; 242 } 243 } 244 245 /* General Purpose dm9000 reset routine */ 246 static void 247 dm9000_reset(void) 248 { 249 DM9000_DBG("resetting DM9000\n"); 250 251 /* Reset DM9000, 252 see DM9000 Application Notes V1.22 Jun 11, 2004 page 29 */ 253 254 /* DEBUG: Make all GPIO0 outputs, all others inputs */ 255 DM9000_iow(DM9000_GPCR, GPCR_GPIO0_OUT); 256 /* Step 1: Power internal PHY by writing 0 to GPIO0 pin */ 257 DM9000_iow(DM9000_GPR, 0); 258 /* Step 2: Software reset */ 259 DM9000_iow(DM9000_NCR, (NCR_LBK_INT_MAC | NCR_RST)); 260 261 do { 262 DM9000_DBG("resetting the DM9000, 1st reset\n"); 263 udelay(25); /* Wait at least 20 us */ 264 } while (DM9000_ior(DM9000_NCR) & 1); 265 266 DM9000_iow(DM9000_NCR, 0); 267 DM9000_iow(DM9000_NCR, (NCR_LBK_INT_MAC | NCR_RST)); /* Issue a second reset */ 268 269 do { 270 DM9000_DBG("resetting the DM9000, 2nd reset\n"); 271 udelay(25); /* Wait at least 20 us */ 272 } while (DM9000_ior(DM9000_NCR) & 1); 273 274 /* Check whether the ethernet controller is present */ 275 if ((DM9000_ior(DM9000_PIDL) != 0x0) || 276 (DM9000_ior(DM9000_PIDH) != 0x90)) 277 printf("ERROR: resetting DM9000 -> not responding\n"); 278 } 279 280 /* Initialize dm9000 board 281 */ 282 static int dm9000_init(struct eth_device *dev, bd_t *bd) 283 { 284 int i, oft, lnk; 285 u8 io_mode; 286 struct board_info *db = &dm9000_info; 287 288 DM9000_DBG("%s\n", __func__); 289 290 /* RESET device */ 291 dm9000_reset(); 292 293 if (dm9000_probe() < 0) 294 return -1; 295 296 /* Auto-detect 8/16/32 bit mode, ISR Bit 6+7 indicate bus width */ 297 io_mode = DM9000_ior(DM9000_ISR) >> 6; 298 299 switch (io_mode) { 300 case 0x0: /* 16-bit mode */ 301 printf("DM9000: running in 16 bit mode\n"); 302 db->outblk = dm9000_outblk_16bit; 303 db->inblk = dm9000_inblk_16bit; 304 db->rx_status = dm9000_rx_status_16bit; 305 break; 306 case 0x01: /* 32-bit mode */ 307 printf("DM9000: running in 32 bit mode\n"); 308 db->outblk = dm9000_outblk_32bit; 309 db->inblk = dm9000_inblk_32bit; 310 db->rx_status = dm9000_rx_status_32bit; 311 break; 312 case 0x02: /* 8 bit mode */ 313 printf("DM9000: running in 8 bit mode\n"); 314 db->outblk = dm9000_outblk_8bit; 315 db->inblk = dm9000_inblk_8bit; 316 db->rx_status = dm9000_rx_status_8bit; 317 break; 318 default: 319 /* Assume 8 bit mode, will probably not work anyway */ 320 printf("DM9000: Undefined IO-mode:0x%x\n", io_mode); 321 db->outblk = dm9000_outblk_8bit; 322 db->inblk = dm9000_inblk_8bit; 323 db->rx_status = dm9000_rx_status_8bit; 324 break; 325 } 326 327 /* Program operating register, only internal phy supported */ 328 DM9000_iow(DM9000_NCR, 0x0); 329 /* TX Polling clear */ 330 DM9000_iow(DM9000_TCR, 0); 331 /* Less 3Kb, 200us */ 332 DM9000_iow(DM9000_BPTR, BPTR_BPHW(3) | BPTR_JPT_600US); 333 /* Flow Control : High/Low Water */ 334 DM9000_iow(DM9000_FCTR, FCTR_HWOT(3) | FCTR_LWOT(8)); 335 /* SH FIXME: This looks strange! Flow Control */ 336 DM9000_iow(DM9000_FCR, 0x0); 337 /* Special Mode */ 338 DM9000_iow(DM9000_SMCR, 0); 339 /* clear TX status */ 340 DM9000_iow(DM9000_NSR, NSR_WAKEST | NSR_TX2END | NSR_TX1END); 341 /* Clear interrupt status */ 342 DM9000_iow(DM9000_ISR, ISR_ROOS | ISR_ROS | ISR_PTS | ISR_PRS); 343 344 printf("MAC: %pM\n", dev->enetaddr); 345 if (!is_valid_ethaddr(dev->enetaddr)) { 346 printf("WARNING: Bad MAC address (uninitialized EEPROM?)\n"); 347 } 348 349 /* fill device MAC address registers */ 350 for (i = 0, oft = DM9000_PAR; i < 6; i++, oft++) 351 DM9000_iow(oft, dev->enetaddr[i]); 352 for (i = 0, oft = 0x16; i < 8; i++, oft++) 353 DM9000_iow(oft, 0xff); 354 355 /* read back mac, just to be sure */ 356 for (i = 0, oft = 0x10; i < 6; i++, oft++) 357 DM9000_DBG("%02x:", DM9000_ior(oft)); 358 DM9000_DBG("\n"); 359 360 /* Activate DM9000 */ 361 /* RX enable */ 362 DM9000_iow(DM9000_RCR, RCR_DIS_LONG | RCR_DIS_CRC | RCR_RXEN); 363 /* Enable TX/RX interrupt mask */ 364 DM9000_iow(DM9000_IMR, IMR_PAR); 365 366 i = 0; 367 while (!(dm9000_phy_read(1) & 0x20)) { /* autonegation complete bit */ 368 udelay(1000); 369 i++; 370 if (i == 10000) { 371 printf("could not establish link\n"); 372 return 0; 373 } 374 } 375 376 /* see what we've got */ 377 lnk = dm9000_phy_read(17) >> 12; 378 printf("operating at "); 379 switch (lnk) { 380 case 1: 381 printf("10M half duplex "); 382 break; 383 case 2: 384 printf("10M full duplex "); 385 break; 386 case 4: 387 printf("100M half duplex "); 388 break; 389 case 8: 390 printf("100M full duplex "); 391 break; 392 default: 393 printf("unknown: %d ", lnk); 394 break; 395 } 396 printf("mode\n"); 397 return 0; 398 } 399 400 /* 401 Hardware start transmission. 402 Send a packet to media from the upper layer. 403 */ 404 static int dm9000_send(struct eth_device *netdev, void *packet, int length) 405 { 406 int tmo; 407 struct board_info *db = &dm9000_info; 408 409 DM9000_DMP_PACKET(__func__ , packet, length); 410 411 DM9000_iow(DM9000_ISR, IMR_PTM); /* Clear Tx bit in ISR */ 412 413 /* Move data to DM9000 TX RAM */ 414 DM9000_outb(DM9000_MWCMD, DM9000_IO); /* Prepare for TX-data */ 415 416 /* push the data to the TX-fifo */ 417 (db->outblk)(packet, length); 418 419 /* Set TX length to DM9000 */ 420 DM9000_iow(DM9000_TXPLL, length & 0xff); 421 DM9000_iow(DM9000_TXPLH, (length >> 8) & 0xff); 422 423 /* Issue TX polling command */ 424 DM9000_iow(DM9000_TCR, TCR_TXREQ); /* Cleared after TX complete */ 425 426 /* wait for end of transmission */ 427 tmo = get_timer(0) + 5 * CONFIG_SYS_HZ; 428 while ( !(DM9000_ior(DM9000_NSR) & (NSR_TX1END | NSR_TX2END)) || 429 !(DM9000_ior(DM9000_ISR) & IMR_PTM) ) { 430 if (get_timer(0) >= tmo) { 431 printf("transmission timeout\n"); 432 break; 433 } 434 } 435 DM9000_iow(DM9000_ISR, IMR_PTM); /* Clear Tx bit in ISR */ 436 437 DM9000_DBG("transmit done\n\n"); 438 return 0; 439 } 440 441 /* 442 Stop the interface. 443 The interface is stopped when it is brought. 444 */ 445 static void dm9000_halt(struct eth_device *netdev) 446 { 447 DM9000_DBG("%s\n", __func__); 448 449 /* RESET devie */ 450 dm9000_phy_write(0, 0x8000); /* PHY RESET */ 451 DM9000_iow(DM9000_GPR, 0x01); /* Power-Down PHY */ 452 DM9000_iow(DM9000_IMR, 0x80); /* Disable all interrupt */ 453 DM9000_iow(DM9000_RCR, 0x00); /* Disable RX */ 454 } 455 456 /* 457 Received a packet and pass to upper layer 458 */ 459 static int dm9000_rx(struct eth_device *netdev) 460 { 461 u8 rxbyte; 462 u8 *rdptr = (u8 *)net_rx_packets[0]; 463 u16 RxStatus, RxLen = 0; 464 struct board_info *db = &dm9000_info; 465 466 /* Check packet ready or not, we must check 467 the ISR status first for DM9000A */ 468 if (!(DM9000_ior(DM9000_ISR) & 0x01)) /* Rx-ISR bit must be set. */ 469 return 0; 470 471 DM9000_iow(DM9000_ISR, 0x01); /* clear PR status latched in bit 0 */ 472 473 /* There is _at least_ 1 package in the fifo, read them all */ 474 for (;;) { 475 DM9000_ior(DM9000_MRCMDX); /* Dummy read */ 476 477 /* Get most updated data, 478 only look at bits 0:1, See application notes DM9000 */ 479 rxbyte = DM9000_inb(DM9000_DATA) & 0x03; 480 481 /* Status check: this byte must be 0 or 1 */ 482 if (rxbyte > DM9000_PKT_RDY) { 483 DM9000_iow(DM9000_RCR, 0x00); /* Stop Device */ 484 DM9000_iow(DM9000_ISR, 0x80); /* Stop INT request */ 485 printf("DM9000 error: status check fail: 0x%x\n", 486 rxbyte); 487 return 0; 488 } 489 490 if (rxbyte != DM9000_PKT_RDY) 491 return 0; /* No packet received, ignore */ 492 493 DM9000_DBG("receiving packet\n"); 494 495 /* A packet ready now & Get status/length */ 496 (db->rx_status)(&RxStatus, &RxLen); 497 498 DM9000_DBG("rx status: 0x%04x rx len: %d\n", RxStatus, RxLen); 499 500 /* Move data from DM9000 */ 501 /* Read received packet from RX SRAM */ 502 (db->inblk)(rdptr, RxLen); 503 504 if ((RxStatus & 0xbf00) || (RxLen < 0x40) 505 || (RxLen > DM9000_PKT_MAX)) { 506 if (RxStatus & 0x100) { 507 printf("rx fifo error\n"); 508 } 509 if (RxStatus & 0x200) { 510 printf("rx crc error\n"); 511 } 512 if (RxStatus & 0x8000) { 513 printf("rx length error\n"); 514 } 515 if (RxLen > DM9000_PKT_MAX) { 516 printf("rx length too big\n"); 517 dm9000_reset(); 518 } 519 } else { 520 DM9000_DMP_PACKET(__func__ , rdptr, RxLen); 521 522 DM9000_DBG("passing packet to upper layer\n"); 523 net_process_received_packet(net_rx_packets[0], RxLen); 524 } 525 } 526 return 0; 527 } 528 529 /* 530 Read a word data from SROM 531 */ 532 #if !defined(CONFIG_DM9000_NO_SROM) 533 void dm9000_read_srom_word(int offset, u8 *to) 534 { 535 DM9000_iow(DM9000_EPAR, offset); 536 DM9000_iow(DM9000_EPCR, 0x4); 537 udelay(8000); 538 DM9000_iow(DM9000_EPCR, 0x0); 539 to[0] = DM9000_ior(DM9000_EPDRL); 540 to[1] = DM9000_ior(DM9000_EPDRH); 541 } 542 543 void dm9000_write_srom_word(int offset, u16 val) 544 { 545 DM9000_iow(DM9000_EPAR, offset); 546 DM9000_iow(DM9000_EPDRH, ((val >> 8) & 0xff)); 547 DM9000_iow(DM9000_EPDRL, (val & 0xff)); 548 DM9000_iow(DM9000_EPCR, 0x12); 549 udelay(8000); 550 DM9000_iow(DM9000_EPCR, 0); 551 } 552 #endif 553 554 static void dm9000_get_enetaddr(struct eth_device *dev) 555 { 556 #if !defined(CONFIG_DM9000_NO_SROM) 557 int i; 558 for (i = 0; i < 3; i++) 559 dm9000_read_srom_word(i, dev->enetaddr + (2 * i)); 560 #endif 561 } 562 563 /* 564 Read a byte from I/O port 565 */ 566 static u8 567 DM9000_ior(int reg) 568 { 569 DM9000_outb(reg, DM9000_IO); 570 return DM9000_inb(DM9000_DATA); 571 } 572 573 /* 574 Write a byte to I/O port 575 */ 576 static void 577 DM9000_iow(int reg, u8 value) 578 { 579 DM9000_outb(reg, DM9000_IO); 580 DM9000_outb(value, DM9000_DATA); 581 } 582 583 /* 584 Read a word from phyxcer 585 */ 586 static u16 587 dm9000_phy_read(int reg) 588 { 589 u16 val; 590 591 /* Fill the phyxcer register into REG_0C */ 592 DM9000_iow(DM9000_EPAR, DM9000_PHY | reg); 593 DM9000_iow(DM9000_EPCR, 0xc); /* Issue phyxcer read command */ 594 udelay(100); /* Wait read complete */ 595 DM9000_iow(DM9000_EPCR, 0x0); /* Clear phyxcer read command */ 596 val = (DM9000_ior(DM9000_EPDRH) << 8) | DM9000_ior(DM9000_EPDRL); 597 598 /* The read data keeps on REG_0D & REG_0E */ 599 DM9000_DBG("dm9000_phy_read(0x%x): 0x%x\n", reg, val); 600 return val; 601 } 602 603 /* 604 Write a word to phyxcer 605 */ 606 static void 607 dm9000_phy_write(int reg, u16 value) 608 { 609 610 /* Fill the phyxcer register into REG_0C */ 611 DM9000_iow(DM9000_EPAR, DM9000_PHY | reg); 612 613 /* Fill the written data into REG_0D & REG_0E */ 614 DM9000_iow(DM9000_EPDRL, (value & 0xff)); 615 DM9000_iow(DM9000_EPDRH, ((value >> 8) & 0xff)); 616 DM9000_iow(DM9000_EPCR, 0xa); /* Issue phyxcer write command */ 617 udelay(500); /* Wait write complete */ 618 DM9000_iow(DM9000_EPCR, 0x0); /* Clear phyxcer write command */ 619 DM9000_DBG("dm9000_phy_write(reg:0x%x, value:0x%x)\n", reg, value); 620 } 621 622 int dm9000_initialize(bd_t *bis) 623 { 624 struct eth_device *dev = &(dm9000_info.netdev); 625 626 /* Load MAC address from EEPROM */ 627 dm9000_get_enetaddr(dev); 628 629 dev->init = dm9000_init; 630 dev->halt = dm9000_halt; 631 dev->send = dm9000_send; 632 dev->recv = dm9000_rx; 633 sprintf(dev->name, "dm9000"); 634 635 eth_register(dev); 636 637 return 0; 638 } 639