1 /* 2 * Copyright (C) 2007 Freescale Semiconductor, Inc. 3 * 4 * Author: Roy Zang <tie-fei.zang@freescale.com>, Sep, 2007 5 * 6 * Description: 7 * ULI 526x Ethernet port driver. 8 * Based on the Linux driver: drivers/net/tulip/uli526x.c 9 * 10 * This is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License as published by 12 * the Free Software Foundation; either version 2 of the License, or 13 * (at your option) any later version. 14 */ 15 16 #include <common.h> 17 #include <malloc.h> 18 #include <net.h> 19 #include <netdev.h> 20 #include <asm/io.h> 21 #include <pci.h> 22 #include <miiphy.h> 23 24 /* some kernel function compatible define */ 25 26 #undef DEBUG 27 28 /* Board/System/Debug information/definition */ 29 #define ULI_VENDOR_ID 0x10B9 30 #define ULI5261_DEVICE_ID 0x5261 31 #define ULI5263_DEVICE_ID 0x5263 32 /* ULi M5261 ID*/ 33 #define PCI_ULI5261_ID (ULI5261_DEVICE_ID << 16 | ULI_VENDOR_ID) 34 /* ULi M5263 ID*/ 35 #define PCI_ULI5263_ID (ULI5263_DEVICE_ID << 16 | ULI_VENDOR_ID) 36 37 #define ULI526X_IO_SIZE 0x100 38 #define TX_DESC_CNT 0x10 /* Allocated Tx descriptors */ 39 #define RX_DESC_CNT PKTBUFSRX /* Allocated Rx descriptors */ 40 #define TX_FREE_DESC_CNT (TX_DESC_CNT - 2) /* Max TX packet count */ 41 #define TX_WAKE_DESC_CNT (TX_DESC_CNT - 3) /* TX wakeup count */ 42 #define DESC_ALL_CNT (TX_DESC_CNT + RX_DESC_CNT) 43 #define TX_BUF_ALLOC 0x300 44 #define RX_ALLOC_SIZE PKTSIZE 45 #define ULI526X_RESET 1 46 #define CR0_DEFAULT 0 47 #define CR6_DEFAULT 0x22200000 48 #define CR7_DEFAULT 0x180c1 49 #define CR15_DEFAULT 0x06 /* TxJabber RxWatchdog */ 50 #define TDES0_ERR_MASK 0x4302 /* TXJT, LC, EC, FUE */ 51 #define MAX_PACKET_SIZE 1514 52 #define ULI5261_MAX_MULTICAST 14 53 #define RX_COPY_SIZE 100 54 #define MAX_CHECK_PACKET 0x8000 55 56 #define ULI526X_10MHF 0 57 #define ULI526X_100MHF 1 58 #define ULI526X_10MFD 4 59 #define ULI526X_100MFD 5 60 #define ULI526X_AUTO 8 61 62 #define ULI526X_TXTH_72 0x400000 /* TX TH 72 byte */ 63 #define ULI526X_TXTH_96 0x404000 /* TX TH 96 byte */ 64 #define ULI526X_TXTH_128 0x0000 /* TX TH 128 byte */ 65 #define ULI526X_TXTH_256 0x4000 /* TX TH 256 byte */ 66 #define ULI526X_TXTH_512 0x8000 /* TX TH 512 byte */ 67 #define ULI526X_TXTH_1K 0xC000 /* TX TH 1K byte */ 68 69 /* CR9 definition: SROM/MII */ 70 #define CR9_SROM_READ 0x4800 71 #define CR9_SRCS 0x1 72 #define CR9_SRCLK 0x2 73 #define CR9_CRDOUT 0x8 74 #define SROM_DATA_0 0x0 75 #define SROM_DATA_1 0x4 76 #define PHY_DATA_1 0x20000 77 #define PHY_DATA_0 0x00000 78 #define MDCLKH 0x10000 79 80 #define PHY_POWER_DOWN 0x800 81 82 #define SROM_V41_CODE 0x14 83 84 #define SROM_CLK_WRITE(data, ioaddr) do { \ 85 outl(data|CR9_SROM_READ|CR9_SRCS, ioaddr); \ 86 udelay(5); \ 87 outl(data|CR9_SROM_READ|CR9_SRCS|CR9_SRCLK, ioaddr); \ 88 udelay(5); \ 89 outl(data|CR9_SROM_READ|CR9_SRCS, ioaddr); \ 90 udelay(5); \ 91 } while (0) 92 93 /* Structure/enum declaration */ 94 95 struct tx_desc { 96 u32 tdes0, tdes1, tdes2, tdes3; /* Data for the card */ 97 char *tx_buf_ptr; /* Data for us */ 98 struct tx_desc *next_tx_desc; 99 }; 100 101 struct rx_desc { 102 u32 rdes0, rdes1, rdes2, rdes3; /* Data for the card */ 103 char *rx_buf_ptr; /* Data for us */ 104 struct rx_desc *next_rx_desc; 105 }; 106 107 struct uli526x_board_info { 108 u32 chip_id; /* Chip vendor/Device ID */ 109 pci_dev_t pdev; 110 111 long ioaddr; /* I/O base address */ 112 u32 cr0_data; 113 u32 cr5_data; 114 u32 cr6_data; 115 u32 cr7_data; 116 u32 cr15_data; 117 118 /* pointer for memory physical address */ 119 dma_addr_t buf_pool_dma_ptr; /* Tx buffer pool memory */ 120 dma_addr_t buf_pool_dma_start; /* Tx buffer pool align dword */ 121 dma_addr_t desc_pool_dma_ptr; /* descriptor pool memory */ 122 dma_addr_t first_tx_desc_dma; 123 dma_addr_t first_rx_desc_dma; 124 125 /* descriptor pointer */ 126 unsigned char *buf_pool_ptr; /* Tx buffer pool memory */ 127 unsigned char *buf_pool_start; /* Tx buffer pool align dword */ 128 unsigned char *desc_pool_ptr; /* descriptor pool memory */ 129 struct tx_desc *first_tx_desc; 130 struct tx_desc *tx_insert_ptr; 131 struct tx_desc *tx_remove_ptr; 132 struct rx_desc *first_rx_desc; 133 struct rx_desc *rx_ready_ptr; /* packet come pointer */ 134 unsigned long tx_packet_cnt; /* transmitted packet count */ 135 136 u16 PHY_reg4; /* Saved Phyxcer register 4 value */ 137 138 u8 media_mode; /* user specify media mode */ 139 u8 op_mode; /* real work dedia mode */ 140 u8 phy_addr; 141 142 /* NIC SROM data */ 143 unsigned char srom[128]; 144 }; 145 146 enum uli526x_offsets { 147 DCR0 = 0x00, DCR1 = 0x08, DCR2 = 0x10, DCR3 = 0x18, DCR4 = 0x20, 148 DCR5 = 0x28, DCR6 = 0x30, DCR7 = 0x38, DCR8 = 0x40, DCR9 = 0x48, 149 DCR10 = 0x50, DCR11 = 0x58, DCR12 = 0x60, DCR13 = 0x68, DCR14 = 0x70, 150 DCR15 = 0x78 151 }; 152 153 enum uli526x_CR6_bits { 154 CR6_RXSC = 0x2, CR6_PBF = 0x8, CR6_PM = 0x40, CR6_PAM = 0x80, 155 CR6_FDM = 0x200, CR6_TXSC = 0x2000, CR6_STI = 0x100000, 156 CR6_SFT = 0x200000, CR6_RXA = 0x40000000, CR6_NO_PURGE = 0x20000000 157 }; 158 159 /* Global variable declaration -- */ 160 161 static unsigned char uli526x_media_mode = ULI526X_AUTO; 162 163 static struct tx_desc desc_pool_array[DESC_ALL_CNT + 0x20] 164 __attribute__ ((aligned(32))); 165 static char buf_pool[TX_BUF_ALLOC * TX_DESC_CNT + 4]; 166 167 /* For module input parameter */ 168 static int mode = 8; 169 170 /* function declaration -- */ 171 static int uli526x_start_xmit(struct eth_device *dev, 172 volatile void *packet, int length); 173 static const struct ethtool_ops netdev_ethtool_ops; 174 static u16 read_srom_word(long, int); 175 static void uli526x_descriptor_init(struct uli526x_board_info *, unsigned long); 176 static void allocate_rx_buffer(struct uli526x_board_info *); 177 static void update_cr6(u32, unsigned long); 178 static u16 phy_read(unsigned long, u8, u8, u32); 179 static u16 phy_readby_cr10(unsigned long, u8, u8); 180 static void phy_write(unsigned long, u8, u8, u16, u32); 181 static void phy_writeby_cr10(unsigned long, u8, u8, u16); 182 static void phy_write_1bit(unsigned long, u32, u32); 183 static u16 phy_read_1bit(unsigned long, u32); 184 static int uli526x_rx_packet(struct eth_device *); 185 static void uli526x_free_tx_pkt(struct eth_device *, 186 struct uli526x_board_info *); 187 static void uli526x_reuse_buf(struct rx_desc *); 188 static void uli526x_init(struct eth_device *); 189 static void uli526x_set_phyxcer(struct uli526x_board_info *); 190 191 192 static int uli526x_init_one(struct eth_device *, bd_t *); 193 static void uli526x_disable(struct eth_device *); 194 static void set_mac_addr(struct eth_device *); 195 196 static struct pci_device_id uli526x_pci_tbl[] = { 197 { ULI_VENDOR_ID, ULI5261_DEVICE_ID}, /* 5261 device */ 198 { ULI_VENDOR_ID, ULI5263_DEVICE_ID}, /* 5263 device */ 199 {} 200 }; 201 202 /* ULI526X network board routine */ 203 204 /* 205 * Search ULI526X board, register it 206 */ 207 208 int uli526x_initialize(bd_t *bis) 209 { 210 pci_dev_t devno; 211 int card_number = 0; 212 struct eth_device *dev; 213 struct uli526x_board_info *db; /* board information structure */ 214 215 u32 iobase; 216 int idx = 0; 217 218 while (1) { 219 /* Find PCI device */ 220 devno = pci_find_devices(uli526x_pci_tbl, idx++); 221 if (devno < 0) 222 break; 223 224 pci_read_config_dword(devno, PCI_BASE_ADDRESS_1, &iobase); 225 iobase &= ~0xf; 226 227 dev = (struct eth_device *)malloc(sizeof *dev); 228 sprintf(dev->name, "uli526x#%d\n", card_number); 229 db = (struct uli526x_board_info *) 230 malloc(sizeof(struct uli526x_board_info)); 231 232 dev->priv = db; 233 db->pdev = devno; 234 dev->iobase = iobase; 235 236 dev->init = uli526x_init_one; 237 dev->halt = uli526x_disable; 238 dev->send = uli526x_start_xmit; 239 dev->recv = uli526x_rx_packet; 240 241 /* init db */ 242 db->ioaddr = dev->iobase; 243 /* get chip id */ 244 245 pci_read_config_dword(devno, PCI_VENDOR_ID, &db->chip_id); 246 #ifdef DEBUG 247 printf("uli526x: uli526x @0x%x\n", iobase); 248 printf("uli526x: chip_id%x\n", db->chip_id); 249 #endif 250 eth_register(dev); 251 card_number++; 252 pci_write_config_byte(devno, PCI_LATENCY_TIMER, 0x20); 253 udelay(10 * 1000); 254 } 255 return card_number; 256 } 257 258 static int uli526x_init_one(struct eth_device *dev, bd_t *bis) 259 { 260 261 struct uli526x_board_info *db = dev->priv; 262 int i; 263 264 switch (mode) { 265 case ULI526X_10MHF: 266 case ULI526X_100MHF: 267 case ULI526X_10MFD: 268 case ULI526X_100MFD: 269 uli526x_media_mode = mode; 270 break; 271 default: 272 uli526x_media_mode = ULI526X_AUTO; 273 break; 274 } 275 276 /* Allocate Tx/Rx descriptor memory */ 277 db->desc_pool_ptr = (uchar *)&desc_pool_array[0]; 278 db->desc_pool_dma_ptr = (dma_addr_t)&desc_pool_array[0]; 279 if (db->desc_pool_ptr == NULL) 280 return -1; 281 282 db->buf_pool_ptr = (uchar *)&buf_pool[0]; 283 db->buf_pool_dma_ptr = (dma_addr_t)&buf_pool[0]; 284 if (db->buf_pool_ptr == NULL) 285 return -1; 286 287 db->first_tx_desc = (struct tx_desc *) db->desc_pool_ptr; 288 db->first_tx_desc_dma = db->desc_pool_dma_ptr; 289 290 db->buf_pool_start = db->buf_pool_ptr; 291 db->buf_pool_dma_start = db->buf_pool_dma_ptr; 292 293 #ifdef DEBUG 294 printf("%s(): db->ioaddr= 0x%x\n", 295 __FUNCTION__, db->ioaddr); 296 printf("%s(): media_mode= 0x%x\n", 297 __FUNCTION__, uli526x_media_mode); 298 printf("%s(): db->desc_pool_ptr= 0x%x\n", 299 __FUNCTION__, db->desc_pool_ptr); 300 printf("%s(): db->desc_pool_dma_ptr= 0x%x\n", 301 __FUNCTION__, db->desc_pool_dma_ptr); 302 printf("%s(): db->buf_pool_ptr= 0x%x\n", 303 __FUNCTION__, db->buf_pool_ptr); 304 printf("%s(): db->buf_pool_dma_ptr= 0x%x\n", 305 __FUNCTION__, db->buf_pool_dma_ptr); 306 #endif 307 308 /* read 64 word srom data */ 309 for (i = 0; i < 64; i++) 310 ((u16 *) db->srom)[i] = cpu_to_le16(read_srom_word(db->ioaddr, 311 i)); 312 313 /* Set Node address */ 314 if (((u16 *) db->srom)[0] == 0xffff || ((u16 *) db->srom)[0] == 0) 315 /* SROM absent, so write MAC address to ID Table */ 316 set_mac_addr(dev); 317 else { /*Exist SROM*/ 318 for (i = 0; i < 6; i++) 319 dev->enetaddr[i] = db->srom[20 + i]; 320 } 321 #ifdef DEBUG 322 for (i = 0; i < 6; i++) 323 printf("%c%02x", i ? ':' : ' ', dev->enetaddr[i]); 324 #endif 325 db->PHY_reg4 = 0x1e0; 326 327 /* system variable init */ 328 db->cr6_data = CR6_DEFAULT ; 329 db->cr6_data |= ULI526X_TXTH_256; 330 db->cr0_data = CR0_DEFAULT; 331 uli526x_init(dev); 332 return 0; 333 } 334 335 static void uli526x_disable(struct eth_device *dev) 336 { 337 #ifdef DEBUG 338 printf("uli526x_disable\n"); 339 #endif 340 struct uli526x_board_info *db = dev->priv; 341 342 if (!((inl(db->ioaddr + DCR12)) & 0x8)) { 343 /* Reset & stop ULI526X board */ 344 outl(ULI526X_RESET, db->ioaddr + DCR0); 345 udelay(5); 346 phy_write(db->ioaddr, db->phy_addr, 0, 0x8000, db->chip_id); 347 348 /* reset the board */ 349 db->cr6_data &= ~(CR6_RXSC | CR6_TXSC); /* Disable Tx/Rx */ 350 update_cr6(db->cr6_data, dev->iobase); 351 outl(0, dev->iobase + DCR7); /* Disable Interrupt */ 352 outl(inl(dev->iobase + DCR5), dev->iobase + DCR5); 353 } 354 } 355 356 /* Initialize ULI526X board 357 * Reset ULI526X board 358 * Initialize TX/Rx descriptor chain structure 359 * Send the set-up frame 360 * Enable Tx/Rx machine 361 */ 362 363 static void uli526x_init(struct eth_device *dev) 364 { 365 366 struct uli526x_board_info *db = dev->priv; 367 u8 phy_tmp; 368 u16 phy_value; 369 u16 phy_reg_reset; 370 371 /* Reset M526x MAC controller */ 372 outl(ULI526X_RESET, db->ioaddr + DCR0); /* RESET MAC */ 373 udelay(100); 374 outl(db->cr0_data, db->ioaddr + DCR0); 375 udelay(5); 376 377 /* Phy addr : In some boards,M5261/M5263 phy address != 1 */ 378 db->phy_addr = 1; 379 db->tx_packet_cnt = 0; 380 for (phy_tmp = 0; phy_tmp < 32; phy_tmp++) { 381 /* peer add */ 382 phy_value = phy_read(db->ioaddr, phy_tmp, 3, db->chip_id); 383 if (phy_value != 0xffff && phy_value != 0) { 384 db->phy_addr = phy_tmp; 385 break; 386 } 387 } 388 389 #ifdef DEBUG 390 printf("%s(): db->ioaddr= 0x%x\n", __FUNCTION__, db->ioaddr); 391 printf("%s(): db->phy_addr= 0x%x\n", __FUNCTION__, db->phy_addr); 392 #endif 393 if (phy_tmp == 32) 394 printf("Can not find the phy address!!!"); 395 396 /* Parser SROM and media mode */ 397 db->media_mode = uli526x_media_mode; 398 399 if (!(inl(db->ioaddr + DCR12) & 0x8)) { 400 /* Phyxcer capability setting */ 401 phy_reg_reset = phy_read(db->ioaddr, 402 db->phy_addr, 0, db->chip_id); 403 phy_reg_reset = (phy_reg_reset | 0x8000); 404 phy_write(db->ioaddr, db->phy_addr, 0, 405 phy_reg_reset, db->chip_id); 406 udelay(500); 407 408 /* Process Phyxcer Media Mode */ 409 uli526x_set_phyxcer(db); 410 } 411 /* Media Mode Process */ 412 if (!(db->media_mode & ULI526X_AUTO)) 413 db->op_mode = db->media_mode; /* Force Mode */ 414 415 /* Initialize Transmit/Receive decriptor and CR3/4 */ 416 uli526x_descriptor_init(db, db->ioaddr); 417 418 /* Init CR6 to program M526X operation */ 419 update_cr6(db->cr6_data, db->ioaddr); 420 421 /* Init CR7, interrupt active bit */ 422 db->cr7_data = CR7_DEFAULT; 423 outl(db->cr7_data, db->ioaddr + DCR7); 424 425 /* Init CR15, Tx jabber and Rx watchdog timer */ 426 outl(db->cr15_data, db->ioaddr + DCR15); 427 428 /* Enable ULI526X Tx/Rx function */ 429 db->cr6_data |= CR6_RXSC | CR6_TXSC; 430 update_cr6(db->cr6_data, db->ioaddr); 431 while (!(inl(db->ioaddr + DCR12) & 0x8)) 432 udelay(10); 433 } 434 435 /* 436 * Hardware start transmission. 437 * Send a packet to media from the upper layer. 438 */ 439 440 static int uli526x_start_xmit(struct eth_device *dev, 441 volatile void *packet, int length) 442 { 443 struct uli526x_board_info *db = dev->priv; 444 struct tx_desc *txptr; 445 unsigned int len = length; 446 /* Too large packet check */ 447 if (len > MAX_PACKET_SIZE) { 448 printf(": big packet = %d\n", len); 449 return 0; 450 } 451 452 /* No Tx resource check, it never happen nromally */ 453 if (db->tx_packet_cnt >= TX_FREE_DESC_CNT) { 454 printf("No Tx resource %ld\n", db->tx_packet_cnt); 455 return 0; 456 } 457 458 /* Disable NIC interrupt */ 459 outl(0, dev->iobase + DCR7); 460 461 /* transmit this packet */ 462 txptr = db->tx_insert_ptr; 463 memcpy((char *)txptr->tx_buf_ptr, (char *)packet, (int)length); 464 txptr->tdes1 = cpu_to_le32(0xe1000000 | length); 465 466 /* Point to next transmit free descriptor */ 467 db->tx_insert_ptr = txptr->next_tx_desc; 468 469 /* Transmit Packet Process */ 470 if ((db->tx_packet_cnt < TX_DESC_CNT)) { 471 txptr->tdes0 = cpu_to_le32(0x80000000); /* Set owner bit */ 472 db->tx_packet_cnt++; /* Ready to send */ 473 outl(0x1, dev->iobase + DCR1); /* Issue Tx polling */ 474 } 475 476 /* Got ULI526X status */ 477 db->cr5_data = inl(db->ioaddr + DCR5); 478 outl(db->cr5_data, db->ioaddr + DCR5); 479 480 #ifdef TX_DEBUG 481 printf("%s(): length = 0x%x\n", __FUNCTION__, length); 482 printf("%s(): cr5_data=%x\n", __FUNCTION__, db->cr5_data); 483 #endif 484 485 outl(db->cr7_data, dev->iobase + DCR7); 486 uli526x_free_tx_pkt(dev, db); 487 488 return length; 489 } 490 491 /* 492 * Free TX resource after TX complete 493 */ 494 495 static void uli526x_free_tx_pkt(struct eth_device *dev, 496 struct uli526x_board_info *db) 497 { 498 struct tx_desc *txptr; 499 u32 tdes0; 500 501 txptr = db->tx_remove_ptr; 502 while (db->tx_packet_cnt) { 503 tdes0 = le32_to_cpu(txptr->tdes0); 504 /* printf(DRV_NAME ": tdes0=%x\n", tdes0); */ 505 if (tdes0 & 0x80000000) 506 break; 507 508 /* A packet sent completed */ 509 db->tx_packet_cnt--; 510 511 if (tdes0 != 0x7fffffff) { 512 #ifdef TX_DEBUG 513 printf("%s()tdes0=%x\n", __FUNCTION__, tdes0); 514 #endif 515 if (tdes0 & TDES0_ERR_MASK) { 516 if (tdes0 & 0x0002) { /* UnderRun */ 517 if (!(db->cr6_data & CR6_SFT)) { 518 db->cr6_data = db->cr6_data | 519 CR6_SFT; 520 update_cr6(db->cr6_data, 521 db->ioaddr); 522 } 523 } 524 } 525 } 526 527 txptr = txptr->next_tx_desc; 528 }/* End of while */ 529 530 /* Update TX remove pointer to next */ 531 db->tx_remove_ptr = txptr; 532 } 533 534 535 /* 536 * Receive the come packet and pass to upper layer 537 */ 538 539 static int uli526x_rx_packet(struct eth_device *dev) 540 { 541 struct uli526x_board_info *db = dev->priv; 542 struct rx_desc *rxptr; 543 int rxlen = 0; 544 u32 rdes0; 545 546 rxptr = db->rx_ready_ptr; 547 548 rdes0 = le32_to_cpu(rxptr->rdes0); 549 #ifdef RX_DEBUG 550 printf("%s(): rxptr->rdes0=%x:%x\n", __FUNCTION__, rxptr->rdes0); 551 #endif 552 if (!(rdes0 & 0x80000000)) { /* packet owner check */ 553 if ((rdes0 & 0x300) != 0x300) { 554 /* A packet without First/Last flag */ 555 /* reuse this buf */ 556 printf("A packet without First/Last flag"); 557 uli526x_reuse_buf(rxptr); 558 } else { 559 /* A packet with First/Last flag */ 560 rxlen = ((rdes0 >> 16) & 0x3fff) - 4; 561 #ifdef RX_DEBUG 562 printf("%s(): rxlen =%x\n", __FUNCTION__, rxlen); 563 #endif 564 /* error summary bit check */ 565 if (rdes0 & 0x8000) { 566 /* This is a error packet */ 567 printf("Error: rdes0: %x\n", rdes0); 568 } 569 570 if (!(rdes0 & 0x8000) || 571 ((db->cr6_data & CR6_PM) && (rxlen > 6))) { 572 573 #ifdef RX_DEBUG 574 printf("%s(): rx_skb_ptr =%x\n", 575 __FUNCTION__, rxptr->rx_buf_ptr); 576 printf("%s(): rxlen =%x\n", 577 __FUNCTION__, rxlen); 578 579 printf("%s(): buf addr =%x\n", 580 __FUNCTION__, rxptr->rx_buf_ptr); 581 printf("%s(): rxlen =%x\n", 582 __FUNCTION__, rxlen); 583 int i; 584 for (i = 0; i < 0x20; i++) 585 printf("%s(): data[%x] =%x\n", 586 __FUNCTION__, i, rxptr->rx_buf_ptr[i]); 587 #endif 588 589 NetReceive((uchar *)rxptr->rx_buf_ptr, rxlen); 590 uli526x_reuse_buf(rxptr); 591 592 } else { 593 /* Reuse SKB buffer when the packet is error */ 594 printf("Reuse buffer, rdes0"); 595 uli526x_reuse_buf(rxptr); 596 } 597 } 598 599 rxptr = rxptr->next_rx_desc; 600 } 601 602 db->rx_ready_ptr = rxptr; 603 return rxlen; 604 } 605 606 /* 607 * Reuse the RX buffer 608 */ 609 610 static void uli526x_reuse_buf(struct rx_desc *rxptr) 611 { 612 613 if (!(rxptr->rdes0 & cpu_to_le32(0x80000000))) 614 rxptr->rdes0 = cpu_to_le32(0x80000000); 615 else 616 printf("Buffer reuse method error"); 617 } 618 /* 619 * Initialize transmit/Receive descriptor 620 * Using Chain structure, and allocate Tx/Rx buffer 621 */ 622 623 static void uli526x_descriptor_init(struct uli526x_board_info *db, 624 unsigned long ioaddr) 625 { 626 struct tx_desc *tmp_tx; 627 struct rx_desc *tmp_rx; 628 unsigned char *tmp_buf; 629 dma_addr_t tmp_tx_dma, tmp_rx_dma; 630 dma_addr_t tmp_buf_dma; 631 int i; 632 /* tx descriptor start pointer */ 633 db->tx_insert_ptr = db->first_tx_desc; 634 db->tx_remove_ptr = db->first_tx_desc; 635 636 outl(db->first_tx_desc_dma, ioaddr + DCR4); /* TX DESC address */ 637 638 /* rx descriptor start pointer */ 639 db->first_rx_desc = (void *)db->first_tx_desc + 640 sizeof(struct tx_desc) * TX_DESC_CNT; 641 db->first_rx_desc_dma = db->first_tx_desc_dma + 642 sizeof(struct tx_desc) * TX_DESC_CNT; 643 db->rx_ready_ptr = db->first_rx_desc; 644 outl(db->first_rx_desc_dma, ioaddr + DCR3); /* RX DESC address */ 645 #ifdef DEBUG 646 printf("%s(): db->first_tx_desc= 0x%x\n", 647 __FUNCTION__, db->first_tx_desc); 648 printf("%s(): db->first_rx_desc_dma= 0x%x\n", 649 __FUNCTION__, db->first_rx_desc_dma); 650 #endif 651 /* Init Transmit chain */ 652 tmp_buf = db->buf_pool_start; 653 tmp_buf_dma = db->buf_pool_dma_start; 654 tmp_tx_dma = db->first_tx_desc_dma; 655 for (tmp_tx = db->first_tx_desc, i = 0; 656 i < TX_DESC_CNT; i++, tmp_tx++) { 657 tmp_tx->tx_buf_ptr = (char *)tmp_buf; 658 tmp_tx->tdes0 = cpu_to_le32(0); 659 tmp_tx->tdes1 = cpu_to_le32(0x81000000); /* IC, chain */ 660 tmp_tx->tdes2 = cpu_to_le32(tmp_buf_dma); 661 tmp_tx_dma += sizeof(struct tx_desc); 662 tmp_tx->tdes3 = cpu_to_le32(tmp_tx_dma); 663 tmp_tx->next_tx_desc = tmp_tx + 1; 664 tmp_buf = tmp_buf + TX_BUF_ALLOC; 665 tmp_buf_dma = tmp_buf_dma + TX_BUF_ALLOC; 666 } 667 (--tmp_tx)->tdes3 = cpu_to_le32(db->first_tx_desc_dma); 668 tmp_tx->next_tx_desc = db->first_tx_desc; 669 670 /* Init Receive descriptor chain */ 671 tmp_rx_dma = db->first_rx_desc_dma; 672 for (tmp_rx = db->first_rx_desc, i = 0; i < RX_DESC_CNT; 673 i++, tmp_rx++) { 674 tmp_rx->rdes0 = cpu_to_le32(0); 675 tmp_rx->rdes1 = cpu_to_le32(0x01000600); 676 tmp_rx_dma += sizeof(struct rx_desc); 677 tmp_rx->rdes3 = cpu_to_le32(tmp_rx_dma); 678 tmp_rx->next_rx_desc = tmp_rx + 1; 679 } 680 (--tmp_rx)->rdes3 = cpu_to_le32(db->first_rx_desc_dma); 681 tmp_rx->next_rx_desc = db->first_rx_desc; 682 683 /* pre-allocate Rx buffer */ 684 allocate_rx_buffer(db); 685 } 686 687 /* 688 * Update CR6 value 689 * Firstly stop ULI526X, then written value and start 690 */ 691 692 static void update_cr6(u32 cr6_data, unsigned long ioaddr) 693 { 694 695 outl(cr6_data, ioaddr + DCR6); 696 udelay(5); 697 } 698 699 /* 700 * Allocate rx buffer, 701 */ 702 703 static void allocate_rx_buffer(struct uli526x_board_info *db) 704 { 705 int index; 706 struct rx_desc *rxptr; 707 rxptr = db->first_rx_desc; 708 u32 addr; 709 710 for (index = 0; index < RX_DESC_CNT; index++) { 711 addr = (u32)NetRxPackets[index]; 712 addr += (16 - (addr & 15)); 713 rxptr->rx_buf_ptr = (char *) addr; 714 rxptr->rdes2 = cpu_to_le32(addr); 715 rxptr->rdes0 = cpu_to_le32(0x80000000); 716 #ifdef DEBUG 717 printf("%s(): Number 0x%x:\n", __FUNCTION__, index); 718 printf("%s(): addr 0x%x:\n", __FUNCTION__, addr); 719 printf("%s(): rxptr address = 0x%x\n", __FUNCTION__, rxptr); 720 printf("%s(): rxptr buf address = 0x%x\n", \ 721 __FUNCTION__, rxptr->rx_buf_ptr); 722 printf("%s(): rdes2 = 0x%x\n", __FUNCTION__, rxptr->rdes2); 723 #endif 724 rxptr = rxptr->next_rx_desc; 725 } 726 } 727 728 /* 729 * Read one word data from the serial ROM 730 */ 731 732 static u16 read_srom_word(long ioaddr, int offset) 733 { 734 int i; 735 u16 srom_data = 0; 736 long cr9_ioaddr = ioaddr + DCR9; 737 738 outl(CR9_SROM_READ, cr9_ioaddr); 739 outl(CR9_SROM_READ | CR9_SRCS, cr9_ioaddr); 740 741 /* Send the Read Command 110b */ 742 SROM_CLK_WRITE(SROM_DATA_1, cr9_ioaddr); 743 SROM_CLK_WRITE(SROM_DATA_1, cr9_ioaddr); 744 SROM_CLK_WRITE(SROM_DATA_0, cr9_ioaddr); 745 746 /* Send the offset */ 747 for (i = 5; i >= 0; i--) { 748 srom_data = (offset & (1 << i)) ? SROM_DATA_1 : SROM_DATA_0; 749 SROM_CLK_WRITE(srom_data, cr9_ioaddr); 750 } 751 752 outl(CR9_SROM_READ | CR9_SRCS, cr9_ioaddr); 753 754 for (i = 16; i > 0; i--) { 755 outl(CR9_SROM_READ | CR9_SRCS | CR9_SRCLK, cr9_ioaddr); 756 udelay(5); 757 srom_data = (srom_data << 1) | ((inl(cr9_ioaddr) & CR9_CRDOUT) 758 ? 1 : 0); 759 outl(CR9_SROM_READ | CR9_SRCS, cr9_ioaddr); 760 udelay(5); 761 } 762 763 outl(CR9_SROM_READ, cr9_ioaddr); 764 return srom_data; 765 } 766 767 /* 768 * Set 10/100 phyxcer capability 769 * AUTO mode : phyxcer register4 is NIC capability 770 * Force mode: phyxcer register4 is the force media 771 */ 772 773 static void uli526x_set_phyxcer(struct uli526x_board_info *db) 774 { 775 u16 phy_reg; 776 777 /* Phyxcer capability setting */ 778 phy_reg = phy_read(db->ioaddr, db->phy_addr, 4, db->chip_id) & ~0x01e0; 779 780 if (db->media_mode & ULI526X_AUTO) { 781 /* AUTO Mode */ 782 phy_reg |= db->PHY_reg4; 783 } else { 784 /* Force Mode */ 785 switch (db->media_mode) { 786 case ULI526X_10MHF: phy_reg |= 0x20; break; 787 case ULI526X_10MFD: phy_reg |= 0x40; break; 788 case ULI526X_100MHF: phy_reg |= 0x80; break; 789 case ULI526X_100MFD: phy_reg |= 0x100; break; 790 } 791 792 } 793 794 /* Write new capability to Phyxcer Reg4 */ 795 if (!(phy_reg & 0x01e0)) { 796 phy_reg |= db->PHY_reg4; 797 db->media_mode |= ULI526X_AUTO; 798 } 799 phy_write(db->ioaddr, db->phy_addr, 4, phy_reg, db->chip_id); 800 801 /* Restart Auto-Negotiation */ 802 phy_write(db->ioaddr, db->phy_addr, 0, 0x1200, db->chip_id); 803 udelay(50); 804 } 805 806 /* 807 * Write a word to Phy register 808 */ 809 810 static void phy_write(unsigned long iobase, u8 phy_addr, u8 offset, 811 u16 phy_data, u32 chip_id) 812 { 813 u16 i; 814 unsigned long ioaddr; 815 816 if (chip_id == PCI_ULI5263_ID) { 817 phy_writeby_cr10(iobase, phy_addr, offset, phy_data); 818 return; 819 } 820 /* M5261/M5263 Chip */ 821 ioaddr = iobase + DCR9; 822 823 /* Send 33 synchronization clock to Phy controller */ 824 for (i = 0; i < 35; i++) 825 phy_write_1bit(ioaddr, PHY_DATA_1, chip_id); 826 827 /* Send start command(01) to Phy */ 828 phy_write_1bit(ioaddr, PHY_DATA_0, chip_id); 829 phy_write_1bit(ioaddr, PHY_DATA_1, chip_id); 830 831 /* Send write command(01) to Phy */ 832 phy_write_1bit(ioaddr, PHY_DATA_0, chip_id); 833 phy_write_1bit(ioaddr, PHY_DATA_1, chip_id); 834 835 /* Send Phy address */ 836 for (i = 0x10; i > 0; i = i >> 1) 837 phy_write_1bit(ioaddr, phy_addr & i ? 838 PHY_DATA_1 : PHY_DATA_0, chip_id); 839 840 /* Send register address */ 841 for (i = 0x10; i > 0; i = i >> 1) 842 phy_write_1bit(ioaddr, offset & i ? 843 PHY_DATA_1 : PHY_DATA_0, chip_id); 844 845 /* written trasnition */ 846 phy_write_1bit(ioaddr, PHY_DATA_1, chip_id); 847 phy_write_1bit(ioaddr, PHY_DATA_0, chip_id); 848 849 /* Write a word data to PHY controller */ 850 for (i = 0x8000; i > 0; i >>= 1) 851 phy_write_1bit(ioaddr, phy_data & i ? 852 PHY_DATA_1 : PHY_DATA_0, chip_id); 853 } 854 855 /* 856 * Read a word data from phy register 857 */ 858 859 static u16 phy_read(unsigned long iobase, u8 phy_addr, u8 offset, u32 chip_id) 860 { 861 int i; 862 u16 phy_data; 863 unsigned long ioaddr; 864 865 if (chip_id == PCI_ULI5263_ID) 866 return phy_readby_cr10(iobase, phy_addr, offset); 867 /* M5261/M5263 Chip */ 868 ioaddr = iobase + DCR9; 869 870 /* Send 33 synchronization clock to Phy controller */ 871 for (i = 0; i < 35; i++) 872 phy_write_1bit(ioaddr, PHY_DATA_1, chip_id); 873 874 /* Send start command(01) to Phy */ 875 phy_write_1bit(ioaddr, PHY_DATA_0, chip_id); 876 phy_write_1bit(ioaddr, PHY_DATA_1, chip_id); 877 878 /* Send read command(10) to Phy */ 879 phy_write_1bit(ioaddr, PHY_DATA_1, chip_id); 880 phy_write_1bit(ioaddr, PHY_DATA_0, chip_id); 881 882 /* Send Phy address */ 883 for (i = 0x10; i > 0; i = i >> 1) 884 phy_write_1bit(ioaddr, phy_addr & i ? 885 PHY_DATA_1 : PHY_DATA_0, chip_id); 886 887 /* Send register address */ 888 for (i = 0x10; i > 0; i = i >> 1) 889 phy_write_1bit(ioaddr, offset & i ? 890 PHY_DATA_1 : PHY_DATA_0, chip_id); 891 892 /* Skip transition state */ 893 phy_read_1bit(ioaddr, chip_id); 894 895 /* read 16bit data */ 896 for (phy_data = 0, i = 0; i < 16; i++) { 897 phy_data <<= 1; 898 phy_data |= phy_read_1bit(ioaddr, chip_id); 899 } 900 901 return phy_data; 902 } 903 904 static u16 phy_readby_cr10(unsigned long iobase, u8 phy_addr, u8 offset) 905 { 906 unsigned long ioaddr, cr10_value; 907 908 ioaddr = iobase + DCR10; 909 cr10_value = phy_addr; 910 cr10_value = (cr10_value<<5) + offset; 911 cr10_value = (cr10_value<<16) + 0x08000000; 912 outl(cr10_value, ioaddr); 913 udelay(1); 914 while (1) { 915 cr10_value = inl(ioaddr); 916 if (cr10_value & 0x10000000) 917 break; 918 } 919 return (cr10_value&0x0ffff); 920 } 921 922 static void phy_writeby_cr10(unsigned long iobase, u8 phy_addr, 923 u8 offset, u16 phy_data) 924 { 925 unsigned long ioaddr, cr10_value; 926 927 ioaddr = iobase + DCR10; 928 cr10_value = phy_addr; 929 cr10_value = (cr10_value<<5) + offset; 930 cr10_value = (cr10_value<<16) + 0x04000000 + phy_data; 931 outl(cr10_value, ioaddr); 932 udelay(1); 933 } 934 /* 935 * Write one bit data to Phy Controller 936 */ 937 938 static void phy_write_1bit(unsigned long ioaddr, u32 phy_data, u32 chip_id) 939 { 940 outl(phy_data , ioaddr); /* MII Clock Low */ 941 udelay(1); 942 outl(phy_data | MDCLKH, ioaddr); /* MII Clock High */ 943 udelay(1); 944 outl(phy_data , ioaddr); /* MII Clock Low */ 945 udelay(1); 946 } 947 948 /* 949 * Read one bit phy data from PHY controller 950 */ 951 952 static u16 phy_read_1bit(unsigned long ioaddr, u32 chip_id) 953 { 954 u16 phy_data; 955 956 outl(0x50000 , ioaddr); 957 udelay(1); 958 phy_data = (inl(ioaddr) >> 19) & 0x1; 959 outl(0x40000 , ioaddr); 960 udelay(1); 961 962 return phy_data; 963 } 964 965 /* 966 * Set MAC address to ID Table 967 */ 968 969 static void set_mac_addr(struct eth_device *dev) 970 { 971 int i; 972 u16 addr; 973 struct uli526x_board_info *db = dev->priv; 974 outl(0x10000, db->ioaddr + DCR0); /* Diagnosis mode */ 975 /* Reset dianostic pointer port */ 976 outl(0x1c0, db->ioaddr + DCR13); 977 outl(0, db->ioaddr + DCR14); /* Clear reset port */ 978 outl(0x10, db->ioaddr + DCR14); /* Reset ID Table pointer */ 979 outl(0, db->ioaddr + DCR14); /* Clear reset port */ 980 outl(0, db->ioaddr + DCR13); /* Clear CR13 */ 981 /* Select ID Table access port */ 982 outl(0x1b0, db->ioaddr + DCR13); 983 /* Read MAC address from CR14 */ 984 for (i = 0; i < 3; i++) { 985 addr = dev->enetaddr[2 * i] | (dev->enetaddr[2 * i + 1] << 8); 986 outl(addr, db->ioaddr + DCR14); 987 } 988 /* write end */ 989 outl(0, db->ioaddr + DCR13); /* Clear CR13 */ 990 outl(0, db->ioaddr + DCR0); /* Clear CR0 */ 991 udelay(10); 992 return; 993 } 994