if_edreg.h revision 426
1/* 2 * National Semiconductor DS8390 NIC register definitions 3 * 4 * $Log: if_edreg.h,v $ 5 * Revision 1.5 93/08/25 20:38:34 davidg 6 * added define for card type WD8013WC (10BaseT) 7 * 8 * Revision 1.4 93/08/14 20:07:55 davidg 9 * fix board type definition for 8013EP 10 * 11 * Revision 1.3 93/07/20 15:25:25 davidg 12 * added config flags for forcing 8/16bit mode and disabling double 13 * xmit buffers. 14 * 15 * Revision 1.2 93/06/23 03:03:05 davidg 16 * added some additional definitions for the 83C584 bus interface 17 * chip (SMC/WD boards) 18 * 19 * Revision 1.1 93/06/23 03:01:07 davidg 20 * Initial revision 21 * 22 */ 23 24/* 25 * Page 0 register offsets 26 */ 27#define ED_P0_CR 0x00 /* Command Register */ 28 29#define ED_P0_CLDA0 0x01 /* Current Local DMA Addr low (read) */ 30#define ED_P0_PSTART 0x01 /* Page Start register (write) */ 31 32#define ED_P0_CLDA1 0x02 /* Current Local DMA Addr high (read) */ 33#define ED_P0_PSTOP 0x02 /* Page Stop register (write) */ 34 35#define ED_P0_BNRY 0x03 /* Boundary Pointer */ 36 37#define ED_P0_TSR 0x04 /* Transmit Status Register (read) */ 38#define ED_P0_TPSR 0x04 /* Transmit Page Start (write) */ 39 40#define ED_P0_NCR 0x05 /* Number of Collisions Reg (read) */ 41#define ED_P0_TBCR0 0x05 /* Transmit Byte count, low (write) */ 42 43#define ED_P0_FIFO 0x06 /* FIFO register (read) */ 44#define ED_P0_TBCR1 0x06 /* Transmit Byte count, high (write) */ 45 46#define ED_P0_ISR 0x07 /* Interrupt Status Register */ 47 48#define ED_P0_CRDA0 0x08 /* Current Remote DMA Addr low (read) */ 49#define ED_P0_RSAR0 0x08 /* Remote Start Address low (write) */ 50 51#define ED_P0_CRDA1 0x09 /* Current Remote DMA Addr high (read) */ 52#define ED_P0_RSAR1 0x09 /* Remote Start Address high (write) */ 53 54#define ED_P0_RBCR0 0x0a /* Remote Byte Count low (write) */ 55 56#define ED_P0_RBCR1 0x0b /* Remote Byte Count high (write) */ 57 58#define ED_P0_RSR 0x0c /* Receive Status (read) */ 59#define ED_P0_RCR 0x0c /* Receive Configuration Reg (write) */ 60 61#define ED_P0_CNTR0 0x0d /* frame alignment error counter (read) */ 62#define ED_P0_TCR 0x0d /* Transmit Configuration Reg (write) */ 63 64#define ED_P0_CNTR1 0x0e /* CRC error counter (read) */ 65#define ED_P0_DCR 0x0e /* Data Configuration Reg (write) */ 66 67#define ED_P0_CNTR2 0x0f /* missed packet counter (read) */ 68#define ED_P0_IMR 0x0f /* Interrupt Mask Register (write) */ 69 70/* 71 * Page 1 register offsets 72 */ 73#define ED_P1_CR 0x00 /* Command Register */ 74#define ED_P1_PAR0 0x01 /* Physical Address Register 0 */ 75#define ED_P1_PAR1 0x02 /* Physical Address Register 1 */ 76#define ED_P1_PAR2 0x03 /* Physical Address Register 2 */ 77#define ED_P1_PAR3 0x04 /* Physical Address Register 3 */ 78#define ED_P1_PAR4 0x05 /* Physical Address Register 4 */ 79#define ED_P1_PAR5 0x06 /* Physical Address Register 5 */ 80#define ED_P1_CURR 0x07 /* Current RX ring-buffer page */ 81#define ED_P1_MAR0 0x08 /* Multicast Address Register 0 */ 82#define ED_P1_MAR1 0x09 /* Multicast Address Register 1 */ 83#define ED_P1_MAR2 0x0a /* Multicast Address Register 2 */ 84#define ED_P1_MAR3 0x0b /* Multicast Address Register 3 */ 85#define ED_P1_MAR4 0x0c /* Multicast Address Register 4 */ 86#define ED_P1_MAR5 0x0d /* Multicast Address Register 5 */ 87#define ED_P1_MAR6 0x0e /* Multicast Address Register 6 */ 88#define ED_P1_MAR7 0x0f /* Multicast Address Register 7 */ 89 90/* 91 * Page 2 register offsets 92 */ 93#define ED_P2_CR 0x00 /* Command Register */ 94#define ED_P2_PSTART 0x01 /* Page Start (read) */ 95#define ED_P2_CLDA0 0x01 /* Current Local DMA Addr 0 (write) */ 96#define ED_P2_PSTOP 0x02 /* Page Stop (read) */ 97#define ED_P2_CLDA1 0x02 /* Current Local DMA Addr 1 (write) */ 98#define ED_P2_RNPP 0x03 /* Remote Next Packet Pointer */ 99#define ED_P2_TPSR 0x04 /* Transmit Page Start (read) */ 100#define ED_P2_LNPP 0x05 /* Local Next Packet Pointer */ 101#define ED_P2_ACU 0x06 /* Address Counter Upper */ 102#define ED_P2_ACL 0x07 /* Address Counter Lower */ 103#define ED_P2_RCR 0x0c /* Receive Configuration Register (read) */ 104#define ED_P2_TCR 0x0d /* Transmit Configuration Register (read) */ 105#define ED_P2_DCR 0x0e /* Data Configuration Register (read) */ 106#define ED_P2_IMR 0x0f /* Interrupt Mask Register (read) */ 107 108/* 109 * Command Register (CR) definitions 110 */ 111 112/* 113 * STP: SToP. Software reset command. Takes the controller offline. No 114 * packets will be received or transmitted. Any reception or 115 * transmission in progress will continue to completion before 116 * entering reset state. To exit this state, the STP bit must 117 * reset and the STA bit must be set. The software reset has 118 * executed only when indicated by the RST bit in the ISR being 119 * set. 120 */ 121#define ED_CR_STP 0x01 122 123/* 124 * STA: STArt. This bit is used to activate the NIC after either power-up, 125 * or when the NIC has been put in reset mode by software command 126 * or error. 127 */ 128#define ED_CR_STA 0x02 129 130/* 131 * TXP: Transmit Packet. This bit must be set to indicate transmission of 132 * a packet. TXP is internally reset either after the transmission is 133 * completed or aborted. This bit should be set only after the Transmit 134 * Byte Count and Transmit Page Start register have been programmed. 135 */ 136#define ED_CR_TXP 0x04 137 138/* 139 * RD0, RD1, RD2: Remote DMA Command. These three bits control the operation 140 * of the remote DMA channel. RD2 can be set to abort any remote DMA 141 * command in progress. The Remote Byte Count registers should be cleared 142 * when a remote DMA has been aborted. The Remote Start Addresses are not 143 * restored to the starting address if the remote DMA is aborted. 144 * 145 * RD2 RD1 RD0 function 146 * 0 0 0 not allowed 147 * 0 0 1 remote read 148 * 0 1 0 remote write 149 * 0 1 1 send packet 150 * 1 X X abort 151 */ 152#define ED_CR_RD0 0x08 153#define ED_CR_RD1 0x10 154#define ED_CR_RD2 0x20 155 156/* 157 * PS0, PS1: Page Select. The two bits select which register set or 'page' to 158 * access. 159 * 160 * PS1 PS0 page 161 * 0 0 0 162 * 0 1 1 163 * 1 0 2 164 * 1 1 reserved 165 */ 166#define ED_CR_PS0 0x40 167#define ED_CR_PS1 0x80 168/* bit encoded aliases */ 169#define ED_CR_PAGE_0 0x00 /* (for consistency) */ 170#define ED_CR_PAGE_1 0x40 171#define ED_CR_PAGE_2 0x80 172 173/* 174 * Interrupt Status Register (ISR) definitions 175 */ 176 177/* 178 * PRX: Packet Received. Indicates packet received with no errors. 179 */ 180#define ED_ISR_PRX 0x01 181 182/* 183 * PTX: Packet Transmitted. Indicates packet transmitted with no errors. 184 */ 185#define ED_ISR_PTX 0x02 186 187/* 188 * RXE: Receive Error. Indicates that a packet was received with one or more 189 * the following errors: CRC error, frame alignment error, FIFO overrun, 190 * missed packet. 191 */ 192#define ED_ISR_RXE 0x04 193 194/* 195 * TXE: Transmission Error. Indicates that an attempt to transmit a packet 196 * resulted in one or more of the following errors: excessive 197 * collisions, FIFO underrun. 198 */ 199#define ED_ISR_TXE 0x08 200 201/* 202 * OVW: OverWrite. Indicates a receive ring-buffer overrun. Incoming network 203 * would exceed (has exceeded?) the boundry pointer, resulting in data 204 * that was previously received and not yet read from the buffer to be 205 * overwritten. 206 */ 207#define ED_ISR_OVW 0x10 208 209/* 210 * CNT: Counter Overflow. Set when the MSB of one or more of the Network Talley 211 * Counters has been set. 212 */ 213#define ED_ISR_CNT 0x20 214 215/* 216 * RDC: Remote Data Complete. Indicates that a Remote DMA operation has completed. 217 */ 218#define ED_ISR_RDC 0x40 219 220/* 221 * RST: Reset status. Set when the NIC enters the reset state and cleared when a 222 * Start Command is issued to the CR. This bit is also set when a receive 223 * ring-buffer overrun (OverWrite) occurs and is cleared when one or more 224 * packets have been removed from the ring. This is a read-only bit. 225 */ 226#define ED_ISR_RST 0x80 227 228/* 229 * Interrupt Mask Register (IMR) definitions 230 */ 231 232/* 233 * PRXE: Packet Received interrupt Enable. If set, a received packet will cause 234 * an interrupt. 235 */ 236#define ED_IMR_PRXE 0x01 237 238/* 239 * PTXE: Packet Transmit interrupt Enable. If set, an interrupt is generated when 240 * a packet transmission completes. 241 */ 242#define ED_IMR_PTXE 0x02 243 244/* 245 * RXEE: Receive Error interrupt Enable. If set, an interrupt will occur whenever a 246 * packet is received with an error. 247 */ 248#define ED_IMR_RXEE 0x04 249 250/* 251 * TXEE: Transmit Error interrupt Enable. If set, an interrupt will occur whenever 252 * a transmission results in an error. 253 */ 254#define ED_IMR_TXEE 0x08 255 256/* 257 * OVWE: OverWrite error interrupt Enable. If set, an interrupt is generated whenever 258 * the receive ring-buffer is overrun. i.e. when the boundry pointer is exceeded. 259 */ 260#define ED_IMR_OVWE 0x10 261 262/* 263 * CNTE: Counter overflow interrupt Enable. If set, an interrupt is generated whenever 264 * the MSB of one or more of the Network Statistics counters has been set. 265 */ 266#define ED_IMR_CNTE 0x20 267 268/* 269 * RDCE: Remote DMA Complete interrupt Enable. If set, an interrupt is generated 270 * when a remote DMA transfer has completed. 271 */ 272#define ED_IMR_RDCE 0x40 273 274/* 275 * bit 7 is unused/reserved 276 */ 277 278/* 279 * Data Configuration Register (DCR) definitions 280 */ 281 282/* 283 * WTS: Word Transfer Select. WTS establishes byte or word transfers for 284 * both remote and local DMA transfers 285 */ 286#define ED_DCR_WTS 0x01 287 288/* 289 * BOS: Byte Order Select. BOS sets the byte order for the host. 290 * Should be 0 for 80x86, and 1 for 68000 series processors 291 */ 292#define ED_DCR_BOS 0x02 293 294/* 295 * LAS: Long Address Select. When LAS is 1, the contents of the remote 296 * DMA registers RSAR0 and RSAR1 are used to provide A16-A31 297 */ 298#define ED_DCR_LAS 0x04 299 300/* 301 * LS: Loopback Select. When 0, loopback mode is selected. Bits D1 and D2 302 * of the TCR must also be programmed for loopback operation. 303 * When 1, normal operation is selected. 304 */ 305#define ED_DCR_LS 0x08 306 307/* 308 * AR: Auto-initialize Remote. When 0, data must be removed from ring-buffer 309 * under program control. When 1, remote DMA is automatically initiated 310 * and the boundry pointer is automatically updated 311 */ 312#define ED_DCR_AR 0x10 313 314/* 315 * FT0, FT1: Fifo Threshold select. 316 * FT1 FT0 Word-width Byte-width 317 * 0 0 1 word 2 bytes 318 * 0 1 2 words 4 bytes 319 * 1 0 4 words 8 bytes 320 * 1 1 8 words 12 bytes 321 * 322 * During transmission, the FIFO threshold indicates the number of bytes 323 * or words that the FIFO has filled from the local DMA before BREQ is 324 * asserted. The transmission threshold is 16 bytes minus the receiver 325 * threshold. 326 */ 327#define ED_DCR_FT0 0x20 328#define ED_DCR_FT1 0x40 329 330/* 331 * bit 7 (0x80) is unused/reserved 332 */ 333 334/* 335 * Transmit Configuration Register (TCR) definitions 336 */ 337 338/* 339 * CRC: Inhibit CRC. If 0, CRC will be appended by the transmitter, if 0, CRC 340 * is not appended by the transmitter. 341 */ 342#define ED_TCR_CRC 0x01 343 344/* 345 * LB0, LB1: Loopback control. These two bits set the type of loopback that is 346 * to be performed. 347 * 348 * LB1 LB0 mode 349 * 0 0 0 - normal operation (DCR_LS = 0) 350 * 0 1 1 - internal loopback (DCR_LS = 0) 351 * 1 0 2 - external loopback (DCR_LS = 1) 352 * 1 1 3 - external loopback (DCR_LS = 0) 353 */ 354#define ED_TCR_LB0 0x02 355#define ED_TCR_LB1 0x04 356 357/* 358 * ATD: Auto Transmit Disable. Clear for normal operation. When set, allows 359 * another station to disable the NIC's transmitter by transmitting to 360 * a multicast address hashing to bit 62. Reception of a multicast address 361 * hashing to bit 63 enables the transmitter. 362 */ 363#define ED_TCR_ATD 0x08 364 365/* 366 * OFST: Collision Offset enable. This bit when set modifies the backoff 367 * algorithm to allow prioritization of nodes. 368 */ 369#define ED_TCR_OFST 0x10 370 371/* 372 * bits 5, 6, and 7 are unused/reserved 373 */ 374 375/* 376 * Transmit Status Register (TSR) definitions 377 */ 378 379/* 380 * PTX: Packet Transmitted. Indicates successful transmission of packet. 381 */ 382#define ED_TSR_PTX 0x01 383 384/* 385 * bit 1 (0x02) is unused/reserved 386 */ 387 388/* 389 * COL: Transmit Collided. Indicates that the transmission collided at least 390 * once with another station on the network. 391 */ 392#define ED_TSR_COL 0x04 393 394/* 395 * ABT: Transmit aborted. Indicates that the transmission was aborted due to 396 * excessive collisions. 397 */ 398#define ED_TSR_ABT 0x08 399 400/* 401 * CRS: Carrier Sense Lost. Indicates that carrier was lost during the 402 * transmission of the packet. (Transmission is not aborted because 403 * of a loss of carrier) 404 */ 405#define ED_TSR_CRS 0x10 406 407/* 408 * FU: FIFO Underrun. Indicates that the NIC wasn't able to access bus/ 409 * transmission memory before the FIFO emptied. Transmission of the 410 * packet was aborted. 411 */ 412#define ED_TSR_FU 0x20 413 414/* 415 * CDH: CD Heartbeat. Indicates that the collision detection circuitry 416 * isn't working correctly during a collision heartbeat test. 417 */ 418#define ED_TSR_CDH 0x40 419 420/* 421 * OWC: Out of Window Collision: Indicates that a collision occurred after 422 * a slot time (51.2us). The transmission is rescheduled just as in 423 * normal collisions. 424 */ 425#define ED_TSR_OWC 0x80 426 427/* 428 * Receiver Configuration Register (RCR) definitions 429 */ 430 431/* 432 * SEP: Save Errored Packets. If 0, error packets are discarded. If set to 1, 433 * packets with CRC and frame errors are not discarded. 434 */ 435#define ED_RCR_SEP 0x01 436 437/* 438 * AR: Accept Runt packet. If 0, packet with less than 64 byte are discarded. 439 * If set to 1, packets with less than 64 byte are not discarded. 440 */ 441#define ED_RCR_AR 0x02 442 443/* 444 * AB: Accept Broadcast. If set, packets sent to the broadcast address will be 445 * accepted. 446 */ 447#define ED_RCR_AB 0x04 448 449/* 450 * AM: Accept Multicast. If set, packets sent to a multicast address are checked 451 * for a match in the hashing array. If clear, multicast packets are ignored. 452 */ 453#define ED_RCR_AM 0x08 454 455/* 456 * PRO: Promiscuous Physical. If set, all packets with a physical addresses are 457 * accepted. If clear, a physical destination address must match this 458 * station's address. Note: for full promiscuous mode, RCR_AB and RCR_AM 459 * must also be set. In addition, the multicast hashing array must be set 460 * to all 1's so that all multicast addresses are accepted. 461 */ 462#define ED_RCR_PRO 0x10 463 464/* 465 * MON: Monitor Mode. If set, packets will be checked for good CRC and framing, 466 * but are not stored in the ring-buffer. If clear, packets are stored (normal 467 * operation). 468 */ 469#define ED_RCR_MON 0x20 470 471/* 472 * bits 6 and 7 are unused/reserved. 473 */ 474 475/* 476 * Receiver Status Register (RSR) definitions 477 */ 478 479/* 480 * PRX: Packet Received without error. 481 */ 482#define ED_RSR_PRX 0x01 483 484/* 485 * CRC: CRC error. Indicates that a packet has a CRC error. Also set for frame 486 * alignment errors. 487 */ 488#define ED_RSR_CRC 0x02 489 490/* 491 * FAE: Frame Alignment Error. Indicates that the incoming packet did not end on 492 * a byte boundry and the CRC did not match at the last byte boundry. 493 */ 494#define ED_RSR_FAE 0x04 495 496/* 497 * FO: FIFO Overrun. Indicates that the FIFO was not serviced (during local DMA) 498 * causing it to overrun. Reception of the packet is aborted. 499 */ 500#define ED_RSR_FO 0x08 501 502/* 503 * MPA: Missed Packet. Indicates that the received packet couldn't be stored in 504 * the ring-buffer because of insufficient buffer space (exceeding the 505 * boundry pointer), or because the transfer to the ring-buffer was inhibited 506 * by RCR_MON - monitor mode. 507 */ 508#define ED_RSR_MPA 0x10 509 510/* 511 * PHY: Physical address. If 0, the packet received was sent to a physical address. 512 * If 1, the packet was accepted because of a multicast/broadcast address 513 * match. 514 */ 515#define ED_RSR_PHY 0x20 516 517/* 518 * DIS: Receiver Disabled. Set to indicate that the receiver has enetered monitor 519 * mode. Cleared when the receiver exits monitor mode. 520 */ 521#define ED_RSR_DIS 0x40 522 523/* 524 * DFR: Deferring. Set to indicate a 'jabber' condition. The CRS and COL inputs 525 * are active, and the transceiver has set the CD line as a result of the 526 * jabber. 527 */ 528#define ED_RSR_DFR 0x80 529 530/* 531 * receive ring discriptor 532 * 533 * The National Semiconductor DS8390 Network interface controller uses 534 * the following receive ring headers. The way this works is that the 535 * memory on the interface card is chopped up into 256 bytes blocks. 536 * A contiguous portion of those blocks are marked for receive packets 537 * by setting start and end block #'s in the NIC. For each packet that 538 * is put into the receive ring, one of these headers (4 bytes each) is 539 * tacked onto the front. 540 */ 541struct ed_ring { 542 struct edr_status { /* received packet status */ 543 u_char rs_prx:1, /* packet received intack */ 544 rs_crc:1, /* crc error */ 545 rs_fae:1, /* frame alignment error */ 546 rs_fo:1, /* fifo overrun */ 547 rs_mpa:1, /* packet received intack */ 548 rs_phy:1, /* packet received intack */ 549 rs_dis:1, /* packet received intack */ 550 rs_dfr:1; /* packet received intack */ 551 } ed_rcv_status; /* received packet status */ 552 u_char next_packet; /* pointer to next packet */ 553 u_short count; /* bytes in packet (length + 4) */ 554}; 555 556/* 557 * Common constants 558 */ 559#define ED_PAGE_SIZE 256 /* Size of RAM pages in bytes */ 560#define ED_TXBUF_SIZE 6 /* Size of TX buffer in pages */ 561 562/* 563 * Vendor types 564 */ 565#define ED_VENDOR_WD_SMC 0x00 /* Western Digital/SMC */ 566#define ED_VENDOR_3COM 0x01 /* 3Com */ 567 568/* 569 * Compile-time config flags 570 */ 571/* 572 * this sets the default for enabling/disablng the tranceiver 573 */ 574#define ED_FLAGS_DISABLE_TRANCEIVER 0x01 575 576/* 577 * This forces the board to be used in 8/16bit mode even if it 578 * autoconfigs differently 579 */ 580#define ED_FLAGS_FORCE_8BIT_MODE 0x02 581#define ED_FLAGS_FORCE_16BIT_MODE 0x04 582 583/* 584 * This disables the use of double transmit buffers. 585 */ 586#define ED_FLAGS_NO_DOUBLE_BUFFERING 0x08 587 588/* 589 * Definitions for Western digital/SMC WD80x3 series ASIC 590 */ 591/* 592 * Memory Select Register (MSR) 593 */ 594#define ED_WD_MSR 0 595 596#define ED_WD_MSR_ADDR 0x3f /* Memory decode bits 18-13 */ 597#define ED_WD_MSR_MENB 0x40 /* Memory enable */ 598#define ED_WD_MSR_RST 0x80 /* Reset board */ 599 600/* 601 * Interface Configuration Register (ICR) 602 */ 603#define ED_WD_ICR 1 604 605#define ED_WD_ICR_16BIT 0x01 /* 16-bit interface */ 606#define ED_WD_ICR_OAR 0x02 /* select register. 0=BIO 1=EAR */ 607#define ED_WD_ICR_IR2 0x04 /* high order bit of encoded IRQ */ 608#define ED_WD_ICR_MSZ 0x08 /* memory size (0=8k 1=32k) */ 609#define ED_WD_ICR_RLA 0x10 /* recall LAN address */ 610#define ED_WD_ICR_RX7 0x20 /* recall all but i/o and LAN address */ 611#define ED_WD_ICR_RIO 0x40 /* recall i/o address */ 612#define ED_WD_ICR_STO 0x80 /* store to non-volatile memory */ 613 614/* 615 * IO Address Register (IAR) 616 */ 617#define ED_WD_IAR 2 618 619/* 620 * EEROM Address Register 621 */ 622#define ED_WD_EAR 3 623 624/* 625 * Interrupt Request Register (IRR) 626 */ 627#define ED_WD_IRR 4 628 629#define ED_WD_IRR_0WS 0x01 /* use 0 wait-states on 8 bit bus */ 630#define ED_WD_IRR_OUT1 0x02 /* WD83C584 pin 1 output */ 631#define ED_WD_IRR_OUT2 0x04 /* WD83C584 pin 2 output */ 632#define ED_WD_IRR_OUT3 0x08 /* WD83C584 pin 3 output */ 633#define ED_WD_IRR_FLASH 0x10 /* Flash RAM is in the ROM socket */ 634 635/* 636 * The three bit of the encoded IRQ are decoded as follows: 637 * 638 * IR2 IR1 IR0 IRQ 639 * 0 0 0 2/9 640 * 0 0 1 3 641 * 0 1 0 5 642 * 0 1 1 7 643 * 1 0 0 10 644 * 1 0 1 11 645 * 1 1 0 15 646 * 1 1 1 4 647 */ 648#define ED_WD_IRR_IR0 0x20 /* bit 0 of encoded IRQ */ 649#define ED_WD_IRR_IR1 0x40 /* bit 1 of encoded IRQ */ 650#define ED_WD_IRR_IEN 0x80 /* Interrupt enable */ 651 652/* 653 * LA Address Register (LAAR) 654 */ 655#define ED_WD_LAAR 5 656 657#define ED_WD_LAAR_ADDRHI 0x1f /* bits 23-19 of RAM address */ 658#define ED_WD_LAAR_0WS16 0x20 /* enable 0 wait-states on 16 bit bus */ 659#define ED_WD_LAAR_L16EN 0x40 /* enable 16-bit operation */ 660#define ED_WD_LAAR_M16EN 0x80 /* enable 16-bit memory access */ 661 662/* i/o base offset to station address/card-ID PROM */ 663#define ED_WD_PROM 8 664 665/* i/o base offset to CARD ID */ 666#define ED_WD_CARD_ID ED_WD_PROM+6 667 668#define ED_TYPE_WD8003S 0x02 669#define ED_TYPE_WD8003E 0x03 670#define ED_TYPE_WD8013EBT 0x05 671#define ED_TYPE_WD8013EP 0x27 672#define ED_TYPE_WD8013WC 0x28 673#define ED_TYPE_WD8013EBP 0x2c 674#define ED_TYPE_WD8013EPC 0x29 675 676/* Bit definitions in card ID */ 677#define ED_WD_REV_MASK 0x1f /* Revision mask */ 678#define ED_WD_SOFTCONFIG 0x20 /* Soft config */ 679#define ED_WD_LARGERAM 0x40 /* Large RAM */ 680#define ED_MICROCHANEL 0x80 /* Microchannel bus (vs. isa) */ 681 682/* 683 * Checksum total. All 8 bytes in station address PROM will add up to this 684 */ 685#define ED_WD_ROM_CHECKSUM_TOTAL 0xFF 686 687#define ED_WD_NIC_OFFSET 0x10 /* I/O base offset to NIC */ 688#define ED_WD_ASIC_OFFSET 0 /* I/O base offset to ASIC */ 689#define ED_WD_IO_PORTS 32 /* # of i/o addresses used */ 690 691#define ED_WD_PAGE_OFFSET 0 /* page offset for NIC access to mem */ 692 693/* 694 * Definitions for 3Com 3c503 695 */ 696#define ED_3COM_NIC_OFFSET 0 697#define ED_3COM_ASIC_OFFSET 0x400 /* offset to nic i/o regs */ 698 699/* 700 * XXX - The I/O address range is fragmented in the 3c503; this is the 701 * number of regs at iobase. 702 */ 703#define ED_3COM_IO_PORTS 16 /* # of i/o addresses used */ 704 705#define ED_3COM_PAGE_OFFSET 0x20 /* memory starts in second bank */ 706 707/* 708 * Page Start Register. Must match PSTART in NIC 709 */ 710#define ED_3COM_PSTR 0 711 712/* 713 * Page Stop Register. Must match PSTOP in NIC 714 */ 715#define ED_3COM_PSPR 1 716 717/* 718 * Drq Timer Register. Determines number of bytes to be transfered during 719 * a DMA burst. 720 */ 721#define ED_3COM_DQTR 2 722 723/* 724 * Base Configuration Register. Read-only register which contains the 725 * board-configured I/O base address of the adapter. Bit encoded. 726 */ 727#define ED_3COM_BCFR 3 728 729#define ED_3COM_BCFR_2E0 0x01 730#define ED_3COM_BCFR_2A0 0x02 731#define ED_3COM_BCFR_280 0x04 732#define ED_3COM_BCFR_250 0x08 733#define ED_3COM_BCFR_350 0x10 734#define ED_3COM_BCFR_330 0x20 735#define ED_3COM_BCFR_310 0x40 736#define ED_3COM_BCFR_300 0x80 737 738/* 739 * EPROM Configuration Register. Read-only register which contains the 740 * board-configured memory base address. Bit encoded. 741 */ 742#define ED_3COM_PCFR 4 743 744#define ED_3COM_PCFR_C8000 0x10 745#define ED_3COM_PCFR_CC000 0x20 746#define ED_3COM_PCFR_D8000 0x40 747#define ED_3COM_PCFR_DC000 0x80 748 749/* 750 * GA Configuration Register. Gate-Array Configuration Register. 751 */ 752#define ED_3COM_GACFR 5 753 754/* 755 * mbs2 mbs1 mbs0 start address 756 * 0 0 0 0x0000 757 * 0 0 1 0x2000 758 * 0 1 0 0x4000 759 * 0 1 1 0x6000 760 * 761 * Note that with adapters with only 8K, the setting for 0x2000 must 762 * always be used. 763 */ 764#define ED_3COM_GACFR_MBS0 0x01 765#define ED_3COM_GACFR_MBS1 0x02 766#define ED_3COM_GACFR_MBS2 0x04 767 768#define ED_3COM_GACFR_RSEL 0x08 /* enable shared memory */ 769#define ED_3COM_GACFR_TEST 0x10 /* for GA testing */ 770#define ED_3COM_GACFR_OWS 0x20 /* select 0WS access to GA */ 771#define ED_3COM_GACFR_TCM 0x40 /* Mask DMA interrupts */ 772#define ED_3COM_GACFR_NIM 0x80 /* Mask NIC interrupts */ 773 774/* 775 * Control Register. Miscellaneous control functions. 776 */ 777#define ED_3COM_CR 6 778 779#define ED_3COM_CR_RST 0x01 /* Reset GA and NIC */ 780#define ED_3COM_CR_XSEL 0x02 /* Transceiver select. BNC=1(def) AUI=0 */ 781#define ED_3COM_CR_EALO 0x04 /* window EA PROM 0-15 to I/O base */ 782#define ED_3COM_CR_EAHI 0x08 /* window EA PROM 16-31 to I/O base */ 783#define ED_3COM_CR_SHARE 0x10 /* select interrupt sharing option */ 784#define ED_3COM_CR_DBSEL 0x20 /* Double buffer select */ 785#define ED_3COM_CR_DDIR 0x40 /* DMA direction select */ 786#define ED_3COM_CR_START 0x80 /* Start DMA controller */ 787 788/* 789 * Status Register. Miscellaneous status information. 790 */ 791#define ED_3COM_STREG 7 792 793#define ED_3COM_STREG_REV 0x07 /* GA revision */ 794#define ED_3COM_STREG_DIP 0x08 /* DMA in progress */ 795#define ED_3COM_STREG_DTC 0x10 /* DMA terminal count */ 796#define ED_3COM_STREG_OFLW 0x20 /* Overflow */ 797#define ED_3COM_STREG_UFLW 0x40 /* Underflow */ 798#define ED_3COM_STREG_DPRDY 0x80 /* Data port ready */ 799 800/* 801 * Interrupt/DMA Configuration Register 802 */ 803#define ED_3COM_IDCFR 8 804 805#define ED_3COM_IDCFR_DRQ0 0x01 /* DMA request 1 select */ 806#define ED_3COM_IDCFR_DRQ1 0x02 /* DMA request 2 select */ 807#define ED_3COM_IDCFR_DRQ2 0x04 /* DMA request 3 select */ 808#define ED_3COM_IDCFR_UNUSED 0x08 /* not used */ 809#define ED_3COM_IDCFR_IRQ2 0x10 /* Interrupt request 2 select */ 810#define ED_3COM_IDCFR_IRQ3 0x20 /* Interrupt request 3 select */ 811#define ED_3COM_IDCFR_IRQ4 0x40 /* Interrupt request 4 select */ 812#define ED_3COM_IDCFR_IRQ5 0x80 /* Interrupt request 5 select */ 813 814/* 815 * DMA Address Register MSB 816 */ 817#define ED_3COM_DAMSB 9 818 819/* 820 * DMA Address Register LSB 821 */ 822#define ED_3COM_DALSB 0x0a 823 824/* 825 * Vector Pointer Register 2 826 */ 827#define ED_3COM_VPTR2 0x0b 828 829/* 830 * Vector Pointer Register 1 831 */ 832#define ED_3COM_VPTR1 0x0c 833 834/* 835 * Vector Pointer Register 0 836 */ 837#define ED_3COM_VPTR0 0x0d 838 839/* 840 * Register File Access MSB 841 */ 842#define ED_3COM_RFMSB 0x0e 843 844/* 845 * Register File Access LSB 846 */ 847#define ED_3COM_RFLSB 0x0f 848