1 /* 2 * rtl8169.c : U-Boot driver for the RealTek RTL8169 3 * 4 * Masami Komiya (mkomiya@sonare.it) 5 * 6 * Most part is taken from r8169.c of etherboot 7 * 8 */ 9 10 /************************************************************************** 11 * r8169.c: Etherboot device driver for the RealTek RTL-8169 Gigabit 12 * Written 2003 by Timothy Legge <tlegge@rogers.com> 13 * 14 * This program is free software; you can redistribute it and/or modify 15 * it under the terms of the GNU General Public License as published by 16 * the Free Software Foundation; either version 2 of the License, or 17 * (at your option) any later version. 18 * 19 * This program is distributed in the hope that it will be useful, 20 * but WITHOUT ANY WARRANTY; without even the implied warranty of 21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 22 * GNU General Public License for more details. 23 * 24 * You should have received a copy of the GNU General Public License 25 * along with this program; if not, write to the Free Software 26 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 27 * 28 * Portions of this code based on: 29 * r8169.c: A RealTek RTL-8169 Gigabit Ethernet driver 30 * for Linux kernel 2.4.x. 31 * 32 * Written 2002 ShuChen <shuchen@realtek.com.tw> 33 * See Linux Driver for full information 34 * 35 * Linux Driver Version 1.27a, 10.02.2002 36 * 37 * Thanks to: 38 * Jean Chen of RealTek Semiconductor Corp. for 39 * providing the evaluation NIC used to develop 40 * this driver. RealTek's support for Etherboot 41 * is appreciated. 42 * 43 * REVISION HISTORY: 44 * ================ 45 * 46 * v1.0 11-26-2003 timlegge Initial port of Linux driver 47 * v1.5 01-17-2004 timlegge Initial driver output cleanup 48 * 49 * Indent Options: indent -kr -i8 50 ***************************************************************************/ 51 /* 52 * 26 August 2006 Mihai Georgian <u-boot@linuxnotincluded.org.uk> 53 * Modified to use le32_to_cpu and cpu_to_le32 properly 54 */ 55 #include <common.h> 56 #include <malloc.h> 57 #include <net.h> 58 #include <netdev.h> 59 #include <asm/io.h> 60 #include <pci.h> 61 62 #undef DEBUG_RTL8169 63 #undef DEBUG_RTL8169_TX 64 #undef DEBUG_RTL8169_RX 65 66 #define drv_version "v1.5" 67 #define drv_date "01-17-2004" 68 69 static u32 ioaddr; 70 71 /* Condensed operations for readability. */ 72 #define currticks() get_timer(0) 73 74 /* media options */ 75 #define MAX_UNITS 8 76 static int media[MAX_UNITS] = { -1, -1, -1, -1, -1, -1, -1, -1 }; 77 78 /* MAC address length*/ 79 #define MAC_ADDR_LEN 6 80 81 /* max supported gigabit ethernet frame size -- must be at least (dev->mtu+14+4).*/ 82 #define MAX_ETH_FRAME_SIZE 1536 83 84 #define TX_FIFO_THRESH 256 /* In bytes */ 85 86 #define RX_FIFO_THRESH 7 /* 7 means NO threshold, Rx buffer level before first PCI xfer. */ 87 #define RX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */ 88 #define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */ 89 #define EarlyTxThld 0x3F /* 0x3F means NO early transmit */ 90 #define RxPacketMaxSize 0x0800 /* Maximum size supported is 16K-1 */ 91 #define InterFrameGap 0x03 /* 3 means InterFrameGap = the shortest one */ 92 93 #define NUM_TX_DESC 1 /* Number of Tx descriptor registers */ 94 #define NUM_RX_DESC 4 /* Number of Rx descriptor registers */ 95 #define RX_BUF_SIZE 1536 /* Rx Buffer size */ 96 #define RX_BUF_LEN 8192 97 98 #define RTL_MIN_IO_SIZE 0x80 99 #define TX_TIMEOUT (6*HZ) 100 101 /* write/read MMIO register. Notice: {read,write}[wl] do the necessary swapping */ 102 #define RTL_W8(reg, val8) writeb ((val8), ioaddr + (reg)) 103 #define RTL_W16(reg, val16) writew ((val16), ioaddr + (reg)) 104 #define RTL_W32(reg, val32) writel ((val32), ioaddr + (reg)) 105 #define RTL_R8(reg) readb (ioaddr + (reg)) 106 #define RTL_R16(reg) readw (ioaddr + (reg)) 107 #define RTL_R32(reg) ((unsigned long) readl (ioaddr + (reg))) 108 109 #define ETH_FRAME_LEN MAX_ETH_FRAME_SIZE 110 #define ETH_ALEN MAC_ADDR_LEN 111 #define ETH_ZLEN 60 112 113 #define bus_to_phys(a) pci_mem_to_phys((pci_dev_t)dev->priv, (pci_addr_t)a) 114 #define phys_to_bus(a) pci_phys_to_mem((pci_dev_t)dev->priv, (phys_addr_t)a) 115 116 enum RTL8169_registers { 117 MAC0 = 0, /* Ethernet hardware address. */ 118 MAR0 = 8, /* Multicast filter. */ 119 TxDescStartAddrLow = 0x20, 120 TxDescStartAddrHigh = 0x24, 121 TxHDescStartAddrLow = 0x28, 122 TxHDescStartAddrHigh = 0x2c, 123 FLASH = 0x30, 124 ERSR = 0x36, 125 ChipCmd = 0x37, 126 TxPoll = 0x38, 127 IntrMask = 0x3C, 128 IntrStatus = 0x3E, 129 TxConfig = 0x40, 130 RxConfig = 0x44, 131 RxMissed = 0x4C, 132 Cfg9346 = 0x50, 133 Config0 = 0x51, 134 Config1 = 0x52, 135 Config2 = 0x53, 136 Config3 = 0x54, 137 Config4 = 0x55, 138 Config5 = 0x56, 139 MultiIntr = 0x5C, 140 PHYAR = 0x60, 141 TBICSR = 0x64, 142 TBI_ANAR = 0x68, 143 TBI_LPAR = 0x6A, 144 PHYstatus = 0x6C, 145 RxMaxSize = 0xDA, 146 CPlusCmd = 0xE0, 147 RxDescStartAddrLow = 0xE4, 148 RxDescStartAddrHigh = 0xE8, 149 EarlyTxThres = 0xEC, 150 FuncEvent = 0xF0, 151 FuncEventMask = 0xF4, 152 FuncPresetState = 0xF8, 153 FuncForceEvent = 0xFC, 154 }; 155 156 enum RTL8169_register_content { 157 /*InterruptStatusBits */ 158 SYSErr = 0x8000, 159 PCSTimeout = 0x4000, 160 SWInt = 0x0100, 161 TxDescUnavail = 0x80, 162 RxFIFOOver = 0x40, 163 RxUnderrun = 0x20, 164 RxOverflow = 0x10, 165 TxErr = 0x08, 166 TxOK = 0x04, 167 RxErr = 0x02, 168 RxOK = 0x01, 169 170 /*RxStatusDesc */ 171 RxRES = 0x00200000, 172 RxCRC = 0x00080000, 173 RxRUNT = 0x00100000, 174 RxRWT = 0x00400000, 175 176 /*ChipCmdBits */ 177 CmdReset = 0x10, 178 CmdRxEnb = 0x08, 179 CmdTxEnb = 0x04, 180 RxBufEmpty = 0x01, 181 182 /*Cfg9346Bits */ 183 Cfg9346_Lock = 0x00, 184 Cfg9346_Unlock = 0xC0, 185 186 /*rx_mode_bits */ 187 AcceptErr = 0x20, 188 AcceptRunt = 0x10, 189 AcceptBroadcast = 0x08, 190 AcceptMulticast = 0x04, 191 AcceptMyPhys = 0x02, 192 AcceptAllPhys = 0x01, 193 194 /*RxConfigBits */ 195 RxCfgFIFOShift = 13, 196 RxCfgDMAShift = 8, 197 198 /*TxConfigBits */ 199 TxInterFrameGapShift = 24, 200 TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */ 201 202 /*rtl8169_PHYstatus */ 203 TBI_Enable = 0x80, 204 TxFlowCtrl = 0x40, 205 RxFlowCtrl = 0x20, 206 _1000bpsF = 0x10, 207 _100bps = 0x08, 208 _10bps = 0x04, 209 LinkStatus = 0x02, 210 FullDup = 0x01, 211 212 /*GIGABIT_PHY_registers */ 213 PHY_CTRL_REG = 0, 214 PHY_STAT_REG = 1, 215 PHY_AUTO_NEGO_REG = 4, 216 PHY_1000_CTRL_REG = 9, 217 218 /*GIGABIT_PHY_REG_BIT */ 219 PHY_Restart_Auto_Nego = 0x0200, 220 PHY_Enable_Auto_Nego = 0x1000, 221 222 /* PHY_STAT_REG = 1; */ 223 PHY_Auto_Nego_Comp = 0x0020, 224 225 /* PHY_AUTO_NEGO_REG = 4; */ 226 PHY_Cap_10_Half = 0x0020, 227 PHY_Cap_10_Full = 0x0040, 228 PHY_Cap_100_Half = 0x0080, 229 PHY_Cap_100_Full = 0x0100, 230 231 /* PHY_1000_CTRL_REG = 9; */ 232 PHY_Cap_1000_Full = 0x0200, 233 234 PHY_Cap_Null = 0x0, 235 236 /*_MediaType*/ 237 _10_Half = 0x01, 238 _10_Full = 0x02, 239 _100_Half = 0x04, 240 _100_Full = 0x08, 241 _1000_Full = 0x10, 242 243 /*_TBICSRBit*/ 244 TBILinkOK = 0x02000000, 245 }; 246 247 static struct { 248 const char *name; 249 u8 version; /* depend on RTL8169 docs */ 250 u32 RxConfigMask; /* should clear the bits supported by this chip */ 251 } rtl_chip_info[] = { 252 {"RTL-8169", 0x00, 0xff7e1880,}, 253 {"RTL-8169", 0x04, 0xff7e1880,}, 254 {"RTL-8169", 0x00, 0xff7e1880,}, 255 {"RTL-8169s/8110s", 0x02, 0xff7e1880,}, 256 {"RTL-8169s/8110s", 0x04, 0xff7e1880,}, 257 {"RTL-8169sb/8110sb", 0x10, 0xff7e1880,}, 258 {"RTL-8169sc/8110sc", 0x18, 0xff7e1880,}, 259 {"RTL-8168b/8111sb", 0x30, 0xff7e1880,}, 260 {"RTL-8168b/8111sb", 0x38, 0xff7e1880,}, 261 {"RTL-8101e", 0x34, 0xff7e1880,}, 262 {"RTL-8100e", 0x32, 0xff7e1880,}, 263 }; 264 265 enum _DescStatusBit { 266 OWNbit = 0x80000000, 267 EORbit = 0x40000000, 268 FSbit = 0x20000000, 269 LSbit = 0x10000000, 270 }; 271 272 struct TxDesc { 273 u32 status; 274 u32 vlan_tag; 275 u32 buf_addr; 276 u32 buf_Haddr; 277 }; 278 279 struct RxDesc { 280 u32 status; 281 u32 vlan_tag; 282 u32 buf_addr; 283 u32 buf_Haddr; 284 }; 285 286 /* Define the TX Descriptor */ 287 static u8 tx_ring[NUM_TX_DESC * sizeof(struct TxDesc) + 256]; 288 /* __attribute__ ((aligned(256))); */ 289 290 /* Create a static buffer of size RX_BUF_SZ for each 291 TX Descriptor. All descriptors point to a 292 part of this buffer */ 293 static unsigned char txb[NUM_TX_DESC * RX_BUF_SIZE]; 294 295 /* Define the RX Descriptor */ 296 static u8 rx_ring[NUM_RX_DESC * sizeof(struct TxDesc) + 256]; 297 /* __attribute__ ((aligned(256))); */ 298 299 /* Create a static buffer of size RX_BUF_SZ for each 300 RX Descriptor All descriptors point to a 301 part of this buffer */ 302 static unsigned char rxb[NUM_RX_DESC * RX_BUF_SIZE]; 303 304 struct rtl8169_private { 305 void *mmio_addr; /* memory map physical address */ 306 int chipset; 307 unsigned long cur_rx; /* Index into the Rx descriptor buffer of next Rx pkt. */ 308 unsigned long cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */ 309 unsigned long dirty_tx; 310 unsigned char *TxDescArrays; /* Index of Tx Descriptor buffer */ 311 unsigned char *RxDescArrays; /* Index of Rx Descriptor buffer */ 312 struct TxDesc *TxDescArray; /* Index of 256-alignment Tx Descriptor buffer */ 313 struct RxDesc *RxDescArray; /* Index of 256-alignment Rx Descriptor buffer */ 314 unsigned char *RxBufferRings; /* Index of Rx Buffer */ 315 unsigned char *RxBufferRing[NUM_RX_DESC]; /* Index of Rx Buffer array */ 316 unsigned char *Tx_skbuff[NUM_TX_DESC]; 317 } tpx; 318 319 static struct rtl8169_private *tpc; 320 321 static const u16 rtl8169_intr_mask = 322 SYSErr | PCSTimeout | RxUnderrun | RxOverflow | RxFIFOOver | TxErr | 323 TxOK | RxErr | RxOK; 324 static const unsigned int rtl8169_rx_config = 325 (RX_FIFO_THRESH << RxCfgFIFOShift) | (RX_DMA_BURST << RxCfgDMAShift); 326 327 static struct pci_device_id supported[] = { 328 {PCI_VENDOR_ID_REALTEK, 0x8167}, 329 {PCI_VENDOR_ID_REALTEK, 0x8169}, 330 {} 331 }; 332 333 void mdio_write(int RegAddr, int value) 334 { 335 int i; 336 337 RTL_W32(PHYAR, 0x80000000 | (RegAddr & 0xFF) << 16 | value); 338 udelay(1000); 339 340 for (i = 2000; i > 0; i--) { 341 /* Check if the RTL8169 has completed writing to the specified MII register */ 342 if (!(RTL_R32(PHYAR) & 0x80000000)) { 343 break; 344 } else { 345 udelay(100); 346 } 347 } 348 } 349 350 int mdio_read(int RegAddr) 351 { 352 int i, value = -1; 353 354 RTL_W32(PHYAR, 0x0 | (RegAddr & 0xFF) << 16); 355 udelay(1000); 356 357 for (i = 2000; i > 0; i--) { 358 /* Check if the RTL8169 has completed retrieving data from the specified MII register */ 359 if (RTL_R32(PHYAR) & 0x80000000) { 360 value = (int) (RTL_R32(PHYAR) & 0xFFFF); 361 break; 362 } else { 363 udelay(100); 364 } 365 } 366 return value; 367 } 368 369 static int rtl8169_init_board(struct eth_device *dev) 370 { 371 int i; 372 u32 tmp; 373 374 #ifdef DEBUG_RTL8169 375 printf ("%s\n", __FUNCTION__); 376 #endif 377 ioaddr = dev->iobase; 378 379 /* Soft reset the chip. */ 380 RTL_W8(ChipCmd, CmdReset); 381 382 /* Check that the chip has finished the reset. */ 383 for (i = 1000; i > 0; i--) 384 if ((RTL_R8(ChipCmd) & CmdReset) == 0) 385 break; 386 else 387 udelay(10); 388 389 /* identify chip attached to board */ 390 tmp = RTL_R32(TxConfig); 391 tmp = ((tmp & 0x7c000000) + ((tmp & 0x00800000) << 2)) >> 24; 392 393 for (i = ARRAY_SIZE(rtl_chip_info) - 1; i >= 0; i--){ 394 if (tmp == rtl_chip_info[i].version) { 395 tpc->chipset = i; 396 goto match; 397 } 398 } 399 400 /* if unknown chip, assume array element #0, original RTL-8169 in this case */ 401 printf("PCI device %s: unknown chip version, assuming RTL-8169\n", dev->name); 402 printf("PCI device: TxConfig = 0x%lX\n", (unsigned long) RTL_R32(TxConfig)); 403 tpc->chipset = 0; 404 405 match: 406 return 0; 407 } 408 409 /************************************************************************** 410 RECV - Receive a frame 411 ***************************************************************************/ 412 static int rtl_recv(struct eth_device *dev) 413 { 414 /* return true if there's an ethernet packet ready to read */ 415 /* nic->packet should contain data on return */ 416 /* nic->packetlen should contain length of data */ 417 int cur_rx; 418 int length = 0; 419 420 #ifdef DEBUG_RTL8169_RX 421 printf ("%s\n", __FUNCTION__); 422 #endif 423 ioaddr = dev->iobase; 424 425 cur_rx = tpc->cur_rx; 426 flush_cache((unsigned long)&tpc->RxDescArray[cur_rx], 427 sizeof(struct RxDesc)); 428 if ((le32_to_cpu(tpc->RxDescArray[cur_rx].status) & OWNbit) == 0) { 429 if (!(le32_to_cpu(tpc->RxDescArray[cur_rx].status) & RxRES)) { 430 unsigned char rxdata[RX_BUF_LEN]; 431 length = (int) (le32_to_cpu(tpc->RxDescArray[cur_rx]. 432 status) & 0x00001FFF) - 4; 433 434 memcpy(rxdata, tpc->RxBufferRing[cur_rx], length); 435 NetReceive(rxdata, length); 436 437 if (cur_rx == NUM_RX_DESC - 1) 438 tpc->RxDescArray[cur_rx].status = 439 cpu_to_le32((OWNbit | EORbit) + RX_BUF_SIZE); 440 else 441 tpc->RxDescArray[cur_rx].status = 442 cpu_to_le32(OWNbit + RX_BUF_SIZE); 443 tpc->RxDescArray[cur_rx].buf_addr = 444 cpu_to_le32(bus_to_phys(tpc->RxBufferRing[cur_rx])); 445 flush_cache((unsigned long)tpc->RxBufferRing[cur_rx], 446 RX_BUF_SIZE); 447 } else { 448 puts("Error Rx"); 449 } 450 cur_rx = (cur_rx + 1) % NUM_RX_DESC; 451 tpc->cur_rx = cur_rx; 452 return 1; 453 454 } else { 455 ushort sts = RTL_R8(IntrStatus); 456 RTL_W8(IntrStatus, sts & ~(TxErr | RxErr | SYSErr)); 457 udelay(100); /* wait */ 458 } 459 tpc->cur_rx = cur_rx; 460 return (0); /* initially as this is called to flush the input */ 461 } 462 463 #define HZ 1000 464 /************************************************************************** 465 SEND - Transmit a frame 466 ***************************************************************************/ 467 static int rtl_send(struct eth_device *dev, void *packet, int length) 468 { 469 /* send the packet to destination */ 470 471 u32 to; 472 u8 *ptxb; 473 int entry = tpc->cur_tx % NUM_TX_DESC; 474 u32 len = length; 475 int ret; 476 477 #ifdef DEBUG_RTL8169_TX 478 int stime = currticks(); 479 printf ("%s\n", __FUNCTION__); 480 printf("sending %d bytes\n", len); 481 #endif 482 483 ioaddr = dev->iobase; 484 485 /* point to the current txb incase multiple tx_rings are used */ 486 ptxb = tpc->Tx_skbuff[entry * MAX_ETH_FRAME_SIZE]; 487 memcpy(ptxb, (char *)packet, (int)length); 488 flush_cache((unsigned long)ptxb, length); 489 490 while (len < ETH_ZLEN) 491 ptxb[len++] = '\0'; 492 493 tpc->TxDescArray[entry].buf_Haddr = 0; 494 tpc->TxDescArray[entry].buf_addr = cpu_to_le32(bus_to_phys(ptxb)); 495 if (entry != (NUM_TX_DESC - 1)) { 496 tpc->TxDescArray[entry].status = 497 cpu_to_le32((OWNbit | FSbit | LSbit) | 498 ((len > ETH_ZLEN) ? len : ETH_ZLEN)); 499 } else { 500 tpc->TxDescArray[entry].status = 501 cpu_to_le32((OWNbit | EORbit | FSbit | LSbit) | 502 ((len > ETH_ZLEN) ? len : ETH_ZLEN)); 503 } 504 RTL_W8(TxPoll, 0x40); /* set polling bit */ 505 506 tpc->cur_tx++; 507 to = currticks() + TX_TIMEOUT; 508 do { 509 flush_cache((unsigned long)&tpc->TxDescArray[entry], 510 sizeof(struct TxDesc)); 511 } while ((le32_to_cpu(tpc->TxDescArray[entry].status) & OWNbit) 512 && (currticks() < to)); /* wait */ 513 514 if (currticks() >= to) { 515 #ifdef DEBUG_RTL8169_TX 516 puts ("tx timeout/error\n"); 517 printf ("%s elapsed time : %d\n", __FUNCTION__, currticks()-stime); 518 #endif 519 ret = 0; 520 } else { 521 #ifdef DEBUG_RTL8169_TX 522 puts("tx done\n"); 523 #endif 524 ret = length; 525 } 526 /* Delay to make net console (nc) work properly */ 527 udelay(20); 528 return ret; 529 } 530 531 static void rtl8169_set_rx_mode(struct eth_device *dev) 532 { 533 u32 mc_filter[2]; /* Multicast hash filter */ 534 int rx_mode; 535 u32 tmp = 0; 536 537 #ifdef DEBUG_RTL8169 538 printf ("%s\n", __FUNCTION__); 539 #endif 540 541 /* IFF_ALLMULTI */ 542 /* Too many to filter perfectly -- accept all multicasts. */ 543 rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys; 544 mc_filter[1] = mc_filter[0] = 0xffffffff; 545 546 tmp = rtl8169_rx_config | rx_mode | (RTL_R32(RxConfig) & 547 rtl_chip_info[tpc->chipset].RxConfigMask); 548 549 RTL_W32(RxConfig, tmp); 550 RTL_W32(MAR0 + 0, mc_filter[0]); 551 RTL_W32(MAR0 + 4, mc_filter[1]); 552 } 553 554 static void rtl8169_hw_start(struct eth_device *dev) 555 { 556 u32 i; 557 558 #ifdef DEBUG_RTL8169 559 int stime = currticks(); 560 printf ("%s\n", __FUNCTION__); 561 #endif 562 563 #if 0 564 /* Soft reset the chip. */ 565 RTL_W8(ChipCmd, CmdReset); 566 567 /* Check that the chip has finished the reset. */ 568 for (i = 1000; i > 0; i--) { 569 if ((RTL_R8(ChipCmd) & CmdReset) == 0) 570 break; 571 else 572 udelay(10); 573 } 574 #endif 575 576 RTL_W8(Cfg9346, Cfg9346_Unlock); 577 578 /* RTL-8169sb/8110sb or previous version */ 579 if (tpc->chipset <= 5) 580 RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); 581 582 RTL_W8(EarlyTxThres, EarlyTxThld); 583 584 /* For gigabit rtl8169 */ 585 RTL_W16(RxMaxSize, RxPacketMaxSize); 586 587 /* Set Rx Config register */ 588 i = rtl8169_rx_config | (RTL_R32(RxConfig) & 589 rtl_chip_info[tpc->chipset].RxConfigMask); 590 RTL_W32(RxConfig, i); 591 592 /* Set DMA burst size and Interframe Gap Time */ 593 RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) | 594 (InterFrameGap << TxInterFrameGapShift)); 595 596 597 tpc->cur_rx = 0; 598 599 RTL_W32(TxDescStartAddrLow, bus_to_phys(tpc->TxDescArray)); 600 RTL_W32(TxDescStartAddrHigh, (unsigned long)0); 601 RTL_W32(RxDescStartAddrLow, bus_to_phys(tpc->RxDescArray)); 602 RTL_W32(RxDescStartAddrHigh, (unsigned long)0); 603 604 /* RTL-8169sc/8110sc or later version */ 605 if (tpc->chipset > 5) 606 RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); 607 608 RTL_W8(Cfg9346, Cfg9346_Lock); 609 udelay(10); 610 611 RTL_W32(RxMissed, 0); 612 613 rtl8169_set_rx_mode(dev); 614 615 /* no early-rx interrupts */ 616 RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000); 617 618 #ifdef DEBUG_RTL8169 619 printf ("%s elapsed time : %d\n", __FUNCTION__, currticks()-stime); 620 #endif 621 } 622 623 static void rtl8169_init_ring(struct eth_device *dev) 624 { 625 int i; 626 627 #ifdef DEBUG_RTL8169 628 int stime = currticks(); 629 printf ("%s\n", __FUNCTION__); 630 #endif 631 632 tpc->cur_rx = 0; 633 tpc->cur_tx = 0; 634 tpc->dirty_tx = 0; 635 memset(tpc->TxDescArray, 0x0, NUM_TX_DESC * sizeof(struct TxDesc)); 636 memset(tpc->RxDescArray, 0x0, NUM_RX_DESC * sizeof(struct RxDesc)); 637 638 for (i = 0; i < NUM_TX_DESC; i++) { 639 tpc->Tx_skbuff[i] = &txb[i]; 640 } 641 642 for (i = 0; i < NUM_RX_DESC; i++) { 643 if (i == (NUM_RX_DESC - 1)) 644 tpc->RxDescArray[i].status = 645 cpu_to_le32((OWNbit | EORbit) + RX_BUF_SIZE); 646 else 647 tpc->RxDescArray[i].status = 648 cpu_to_le32(OWNbit + RX_BUF_SIZE); 649 650 tpc->RxBufferRing[i] = &rxb[i * RX_BUF_SIZE]; 651 tpc->RxDescArray[i].buf_addr = 652 cpu_to_le32(bus_to_phys(tpc->RxBufferRing[i])); 653 flush_cache((unsigned long)tpc->RxBufferRing[i], RX_BUF_SIZE); 654 } 655 656 #ifdef DEBUG_RTL8169 657 printf ("%s elapsed time : %d\n", __FUNCTION__, currticks()-stime); 658 #endif 659 } 660 661 /************************************************************************** 662 RESET - Finish setting up the ethernet interface 663 ***************************************************************************/ 664 static int rtl_reset(struct eth_device *dev, bd_t *bis) 665 { 666 int i; 667 668 #ifdef DEBUG_RTL8169 669 int stime = currticks(); 670 printf ("%s\n", __FUNCTION__); 671 #endif 672 673 tpc->TxDescArrays = tx_ring; 674 /* Tx Desscriptor needs 256 bytes alignment; */ 675 tpc->TxDescArray = (struct TxDesc *) ((unsigned long)(tpc->TxDescArrays + 676 255) & ~255); 677 678 tpc->RxDescArrays = rx_ring; 679 /* Rx Desscriptor needs 256 bytes alignment; */ 680 tpc->RxDescArray = (struct RxDesc *) ((unsigned long)(tpc->RxDescArrays + 681 255) & ~255); 682 683 rtl8169_init_ring(dev); 684 rtl8169_hw_start(dev); 685 /* Construct a perfect filter frame with the mac address as first match 686 * and broadcast for all others */ 687 for (i = 0; i < 192; i++) 688 txb[i] = 0xFF; 689 690 txb[0] = dev->enetaddr[0]; 691 txb[1] = dev->enetaddr[1]; 692 txb[2] = dev->enetaddr[2]; 693 txb[3] = dev->enetaddr[3]; 694 txb[4] = dev->enetaddr[4]; 695 txb[5] = dev->enetaddr[5]; 696 697 #ifdef DEBUG_RTL8169 698 printf ("%s elapsed time : %d\n", __FUNCTION__, currticks()-stime); 699 #endif 700 return 0; 701 } 702 703 /************************************************************************** 704 HALT - Turn off ethernet interface 705 ***************************************************************************/ 706 static void rtl_halt(struct eth_device *dev) 707 { 708 int i; 709 710 #ifdef DEBUG_RTL8169 711 printf ("%s\n", __FUNCTION__); 712 #endif 713 714 ioaddr = dev->iobase; 715 716 /* Stop the chip's Tx and Rx DMA processes. */ 717 RTL_W8(ChipCmd, 0x00); 718 719 /* Disable interrupts by clearing the interrupt mask. */ 720 RTL_W16(IntrMask, 0x0000); 721 722 RTL_W32(RxMissed, 0); 723 724 tpc->TxDescArrays = NULL; 725 tpc->RxDescArrays = NULL; 726 tpc->TxDescArray = NULL; 727 tpc->RxDescArray = NULL; 728 for (i = 0; i < NUM_RX_DESC; i++) { 729 tpc->RxBufferRing[i] = NULL; 730 } 731 } 732 733 /************************************************************************** 734 INIT - Look for an adapter, this routine's visible to the outside 735 ***************************************************************************/ 736 737 #define board_found 1 738 #define valid_link 0 739 static int rtl_init(struct eth_device *dev, bd_t *bis) 740 { 741 static int board_idx = -1; 742 int i, rc; 743 int option = -1, Cap10_100 = 0, Cap1000 = 0; 744 745 #ifdef DEBUG_RTL8169 746 printf ("%s\n", __FUNCTION__); 747 #endif 748 749 ioaddr = dev->iobase; 750 751 board_idx++; 752 753 /* point to private storage */ 754 tpc = &tpx; 755 756 rc = rtl8169_init_board(dev); 757 if (rc) 758 return rc; 759 760 /* Get MAC address. FIXME: read EEPROM */ 761 for (i = 0; i < MAC_ADDR_LEN; i++) 762 dev->enetaddr[i] = RTL_R8(MAC0 + i); 763 764 #ifdef DEBUG_RTL8169 765 printf("chipset = %d\n", tpc->chipset); 766 printf("MAC Address"); 767 for (i = 0; i < MAC_ADDR_LEN; i++) 768 printf(":%02x", dev->enetaddr[i]); 769 putc('\n'); 770 #endif 771 772 #ifdef DEBUG_RTL8169 773 /* Print out some hardware info */ 774 printf("%s: at ioaddr 0x%x\n", dev->name, ioaddr); 775 #endif 776 777 /* if TBI is not endbled */ 778 if (!(RTL_R8(PHYstatus) & TBI_Enable)) { 779 int val = mdio_read(PHY_AUTO_NEGO_REG); 780 781 option = (board_idx >= MAX_UNITS) ? 0 : media[board_idx]; 782 /* Force RTL8169 in 10/100/1000 Full/Half mode. */ 783 if (option > 0) { 784 #ifdef DEBUG_RTL8169 785 printf("%s: Force-mode Enabled.\n", dev->name); 786 #endif 787 Cap10_100 = 0, Cap1000 = 0; 788 switch (option) { 789 case _10_Half: 790 Cap10_100 = PHY_Cap_10_Half; 791 Cap1000 = PHY_Cap_Null; 792 break; 793 case _10_Full: 794 Cap10_100 = PHY_Cap_10_Full; 795 Cap1000 = PHY_Cap_Null; 796 break; 797 case _100_Half: 798 Cap10_100 = PHY_Cap_100_Half; 799 Cap1000 = PHY_Cap_Null; 800 break; 801 case _100_Full: 802 Cap10_100 = PHY_Cap_100_Full; 803 Cap1000 = PHY_Cap_Null; 804 break; 805 case _1000_Full: 806 Cap10_100 = PHY_Cap_Null; 807 Cap1000 = PHY_Cap_1000_Full; 808 break; 809 default: 810 break; 811 } 812 mdio_write(PHY_AUTO_NEGO_REG, Cap10_100 | (val & 0x1F)); /* leave PHY_AUTO_NEGO_REG bit4:0 unchanged */ 813 mdio_write(PHY_1000_CTRL_REG, Cap1000); 814 } else { 815 #ifdef DEBUG_RTL8169 816 printf("%s: Auto-negotiation Enabled.\n", 817 dev->name); 818 #endif 819 /* enable 10/100 Full/Half Mode, leave PHY_AUTO_NEGO_REG bit4:0 unchanged */ 820 mdio_write(PHY_AUTO_NEGO_REG, 821 PHY_Cap_10_Half | PHY_Cap_10_Full | 822 PHY_Cap_100_Half | PHY_Cap_100_Full | 823 (val & 0x1F)); 824 825 /* enable 1000 Full Mode */ 826 mdio_write(PHY_1000_CTRL_REG, PHY_Cap_1000_Full); 827 828 } 829 830 /* Enable auto-negotiation and restart auto-nigotiation */ 831 mdio_write(PHY_CTRL_REG, 832 PHY_Enable_Auto_Nego | PHY_Restart_Auto_Nego); 833 udelay(100); 834 835 /* wait for auto-negotiation process */ 836 for (i = 10000; i > 0; i--) { 837 /* check if auto-negotiation complete */ 838 if (mdio_read(PHY_STAT_REG) & PHY_Auto_Nego_Comp) { 839 udelay(100); 840 option = RTL_R8(PHYstatus); 841 if (option & _1000bpsF) { 842 #ifdef DEBUG_RTL8169 843 printf("%s: 1000Mbps Full-duplex operation.\n", 844 dev->name); 845 #endif 846 } else { 847 #ifdef DEBUG_RTL8169 848 printf("%s: %sMbps %s-duplex operation.\n", 849 dev->name, 850 (option & _100bps) ? "100" : 851 "10", 852 (option & FullDup) ? "Full" : 853 "Half"); 854 #endif 855 } 856 break; 857 } else { 858 udelay(100); 859 } 860 } /* end for-loop to wait for auto-negotiation process */ 861 862 } else { 863 udelay(100); 864 #ifdef DEBUG_RTL8169 865 printf 866 ("%s: 1000Mbps Full-duplex operation, TBI Link %s!\n", 867 dev->name, 868 (RTL_R32(TBICSR) & TBILinkOK) ? "OK" : "Failed"); 869 #endif 870 } 871 872 return 1; 873 } 874 875 int rtl8169_initialize(bd_t *bis) 876 { 877 pci_dev_t devno; 878 int card_number = 0; 879 struct eth_device *dev; 880 u32 iobase; 881 int idx=0; 882 883 while(1){ 884 /* Find RTL8169 */ 885 if ((devno = pci_find_devices(supported, idx++)) < 0) 886 break; 887 888 pci_read_config_dword(devno, PCI_BASE_ADDRESS_1, &iobase); 889 iobase &= ~0xf; 890 891 debug ("rtl8169: REALTEK RTL8169 @0x%x\n", iobase); 892 893 dev = (struct eth_device *)malloc(sizeof *dev); 894 if (!dev) { 895 printf("Can not allocate memory of rtl8169\n"); 896 break; 897 } 898 899 memset(dev, 0, sizeof(*dev)); 900 sprintf (dev->name, "RTL8169#%d", card_number); 901 902 dev->priv = (void *) devno; 903 dev->iobase = (int)pci_mem_to_phys(devno, iobase); 904 905 dev->init = rtl_reset; 906 dev->halt = rtl_halt; 907 dev->send = rtl_send; 908 dev->recv = rtl_recv; 909 910 eth_register (dev); 911 912 rtl_init(dev, bis); 913 914 card_number++; 915 } 916 return card_number; 917 } 918