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1/*2 * Amiga Linux/68k A2065 Ethernet Driver3 *4 * (C) Copyright 1995-2003 by Geert Uytterhoeven <geert@linux-m68k.org>5 *6 * Fixes and tips by:7 * - Janos Farkas (CHEXUM@sparta.banki.hu)8 * - Jes Degn Soerensen (jds@kom.auc.dk)9 * - Matt Domsch (Matt_Domsch@dell.com)10 *11 * ----------------------------------------------------------------------------12 *13 * This program is based on14 *15 * ariadne.?: Amiga Linux/68k Ariadne Ethernet Driver16 * (C) Copyright 1995 by Geert Uytterhoeven,17 * Peter De Schrijver18 *19 * lance.c: An AMD LANCE ethernet driver for linux.20 * Written 1993-94 by Donald Becker.21 *22 * Am79C960: PCnet(tm)-ISA Single-Chip Ethernet Controller23 * Advanced Micro Devices24 * Publication #16907, Rev. B, Amendment/0, May 199425 *26 * ----------------------------------------------------------------------------27 *28 * This file is subject to the terms and conditions of the GNU General Public29 * License. See the file COPYING in the main directory of the Linux30 * distribution for more details.31 *32 * ----------------------------------------------------------------------------33 *34 * The A2065 is a Zorro-II board made by Commodore/Ameristar. It contains:35 *36 * - an Am7990 Local Area Network Controller for Ethernet (LANCE) with37 * both 10BASE-2 (thin coax) and AUI (DB-15) connectors38 */39 40#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt41 42/*#define DEBUG*/43/*#define TEST_HITS*/44 45#include <linux/errno.h>46#include <linux/netdevice.h>47#include <linux/etherdevice.h>48#include <linux/module.h>49#include <linux/stddef.h>50#include <linux/kernel.h>51#include <linux/interrupt.h>52#include <linux/ioport.h>53#include <linux/skbuff.h>54#include <linux/string.h>55#include <linux/init.h>56#include <linux/crc32.h>57#include <linux/zorro.h>58#include <linux/bitops.h>59 60#include <asm/byteorder.h>61#include <asm/irq.h>62#include <asm/amigaints.h>63#include <asm/amigahw.h>64 65#include "a2065.h"66 67/* Transmit/Receive Ring Definitions */68 69#define LANCE_LOG_TX_BUFFERS (2)70#define LANCE_LOG_RX_BUFFERS (4)71 72#define TX_RING_SIZE (1 << LANCE_LOG_TX_BUFFERS)73#define RX_RING_SIZE (1 << LANCE_LOG_RX_BUFFERS)74 75#define TX_RING_MOD_MASK (TX_RING_SIZE - 1)76#define RX_RING_MOD_MASK (RX_RING_SIZE - 1)77 78#define PKT_BUF_SIZE (1544)79#define RX_BUFF_SIZE PKT_BUF_SIZE80#define TX_BUFF_SIZE PKT_BUF_SIZE81 82/* Layout of the Lance's RAM Buffer */83 84struct lance_init_block {85 unsigned short mode; /* Pre-set mode (reg. 15) */86 unsigned char phys_addr[6]; /* Physical ethernet address */87 unsigned filter[2]; /* Multicast filter. */88 89 /* Receive and transmit ring base, along with extra bits. */90 unsigned short rx_ptr; /* receive descriptor addr */91 unsigned short rx_len; /* receive len and high addr */92 unsigned short tx_ptr; /* transmit descriptor addr */93 unsigned short tx_len; /* transmit len and high addr */94 95 /* The Tx and Rx ring entries must aligned on 8-byte boundaries. */96 struct lance_rx_desc brx_ring[RX_RING_SIZE];97 struct lance_tx_desc btx_ring[TX_RING_SIZE];98 99 char rx_buf[RX_RING_SIZE][RX_BUFF_SIZE];100 char tx_buf[TX_RING_SIZE][TX_BUFF_SIZE];101};102 103/* Private Device Data */104 105struct lance_private {106 char *name;107 volatile struct lance_regs *ll;108 volatile struct lance_init_block *init_block; /* Hosts view */109 volatile struct lance_init_block *lance_init_block; /* Lance view */110 111 int rx_new, tx_new;112 int rx_old, tx_old;113 114 int lance_log_rx_bufs, lance_log_tx_bufs;115 int rx_ring_mod_mask, tx_ring_mod_mask;116 117 int tpe; /* cable-selection is TPE */118 int auto_select; /* cable-selection by carrier */119 unsigned short busmaster_regval;120 121 struct timer_list multicast_timer;122 struct net_device *dev;123};124 125#define LANCE_ADDR(x) ((int)(x) & ~0xff000000)126 127/* Load the CSR registers */128static void load_csrs(struct lance_private *lp)129{130 volatile struct lance_regs *ll = lp->ll;131 volatile struct lance_init_block *aib = lp->lance_init_block;132 int leptr = LANCE_ADDR(aib);133 134 ll->rap = LE_CSR1;135 ll->rdp = (leptr & 0xFFFF);136 ll->rap = LE_CSR2;137 ll->rdp = leptr >> 16;138 ll->rap = LE_CSR3;139 ll->rdp = lp->busmaster_regval;140 141 /* Point back to csr0 */142 ll->rap = LE_CSR0;143}144 145/* Setup the Lance Rx and Tx rings */146static void lance_init_ring(struct net_device *dev)147{148 struct lance_private *lp = netdev_priv(dev);149 volatile struct lance_init_block *ib = lp->init_block;150 volatile struct lance_init_block *aib = lp->lance_init_block;151 /* for LANCE_ADDR computations */152 int leptr;153 int i;154 155 /* Lock out other processes while setting up hardware */156 netif_stop_queue(dev);157 lp->rx_new = lp->tx_new = 0;158 lp->rx_old = lp->tx_old = 0;159 160 ib->mode = 0;161 162 /* Copy the ethernet address to the lance init block163 * Note that on the sparc you need to swap the ethernet address.164 */165 ib->phys_addr[0] = dev->dev_addr[1];166 ib->phys_addr[1] = dev->dev_addr[0];167 ib->phys_addr[2] = dev->dev_addr[3];168 ib->phys_addr[3] = dev->dev_addr[2];169 ib->phys_addr[4] = dev->dev_addr[5];170 ib->phys_addr[5] = dev->dev_addr[4];171 172 /* Setup the Tx ring entries */173 netdev_dbg(dev, "TX rings:\n");174 for (i = 0; i <= 1 << lp->lance_log_tx_bufs; i++) {175 leptr = LANCE_ADDR(&aib->tx_buf[i][0]);176 ib->btx_ring[i].tmd0 = leptr;177 ib->btx_ring[i].tmd1_hadr = leptr >> 16;178 ib->btx_ring[i].tmd1_bits = 0;179 ib->btx_ring[i].length = 0xf000; /* The ones required by tmd2 */180 ib->btx_ring[i].misc = 0;181 if (i < 3)182 netdev_dbg(dev, "%d: 0x%08x\n", i, leptr);183 }184 185 /* Setup the Rx ring entries */186 netdev_dbg(dev, "RX rings:\n");187 for (i = 0; i < 1 << lp->lance_log_rx_bufs; i++) {188 leptr = LANCE_ADDR(&aib->rx_buf[i][0]);189 190 ib->brx_ring[i].rmd0 = leptr;191 ib->brx_ring[i].rmd1_hadr = leptr >> 16;192 ib->brx_ring[i].rmd1_bits = LE_R1_OWN;193 ib->brx_ring[i].length = -RX_BUFF_SIZE | 0xf000;194 ib->brx_ring[i].mblength = 0;195 if (i < 3)196 netdev_dbg(dev, "%d: 0x%08x\n", i, leptr);197 }198 199 /* Setup the initialization block */200 201 /* Setup rx descriptor pointer */202 leptr = LANCE_ADDR(&aib->brx_ring);203 ib->rx_len = (lp->lance_log_rx_bufs << 13) | (leptr >> 16);204 ib->rx_ptr = leptr;205 netdev_dbg(dev, "RX ptr: %08x\n", leptr);206 207 /* Setup tx descriptor pointer */208 leptr = LANCE_ADDR(&aib->btx_ring);209 ib->tx_len = (lp->lance_log_tx_bufs << 13) | (leptr >> 16);210 ib->tx_ptr = leptr;211 netdev_dbg(dev, "TX ptr: %08x\n", leptr);212 213 /* Clear the multicast filter */214 ib->filter[0] = 0;215 ib->filter[1] = 0;216}217 218static int init_restart_lance(struct lance_private *lp)219{220 volatile struct lance_regs *ll = lp->ll;221 int i;222 223 ll->rap = LE_CSR0;224 ll->rdp = LE_C0_INIT;225 226 /* Wait for the lance to complete initialization */227 for (i = 0; (i < 100) && !(ll->rdp & (LE_C0_ERR | LE_C0_IDON)); i++)228 barrier();229 if ((i == 100) || (ll->rdp & LE_C0_ERR)) {230 pr_err("unopened after %d ticks, csr0=%04x\n", i, ll->rdp);231 return -EIO;232 }233 234 /* Clear IDON by writing a "1", enable interrupts and start lance */235 ll->rdp = LE_C0_IDON;236 ll->rdp = LE_C0_INEA | LE_C0_STRT;237 238 return 0;239}240 241static int lance_rx(struct net_device *dev)242{243 struct lance_private *lp = netdev_priv(dev);244 volatile struct lance_init_block *ib = lp->init_block;245 volatile struct lance_regs *ll = lp->ll;246 volatile struct lance_rx_desc *rd;247 unsigned char bits;248 249#ifdef TEST_HITS250 int i;251 char buf[RX_RING_SIZE + 1];252 253 for (i = 0; i < RX_RING_SIZE; i++) {254 char r1_own = ib->brx_ring[i].rmd1_bits & LE_R1_OWN;255 if (i == lp->rx_new)256 buf[i] = r1_own ? '_' : 'X';257 else258 buf[i] = r1_own ? '.' : '1';259 }260 buf[RX_RING_SIZE] = 0;261 262 pr_debug("RxRing TestHits: [%s]\n", buf);263#endif264 265 ll->rdp = LE_C0_RINT | LE_C0_INEA;266 for (rd = &ib->brx_ring[lp->rx_new];267 !((bits = rd->rmd1_bits) & LE_R1_OWN);268 rd = &ib->brx_ring[lp->rx_new]) {269 270 /* We got an incomplete frame? */271 if ((bits & LE_R1_POK) != LE_R1_POK) {272 dev->stats.rx_over_errors++;273 dev->stats.rx_errors++;274 continue;275 } else if (bits & LE_R1_ERR) {276 /* Count only the end frame as a rx error,277 * not the beginning278 */279 if (bits & LE_R1_BUF)280 dev->stats.rx_fifo_errors++;281 if (bits & LE_R1_CRC)282 dev->stats.rx_crc_errors++;283 if (bits & LE_R1_OFL)284 dev->stats.rx_over_errors++;285 if (bits & LE_R1_FRA)286 dev->stats.rx_frame_errors++;287 if (bits & LE_R1_EOP)288 dev->stats.rx_errors++;289 } else {290 int len = (rd->mblength & 0xfff) - 4;291 struct sk_buff *skb = netdev_alloc_skb(dev, len + 2);292 293 if (!skb) {294 dev->stats.rx_dropped++;295 rd->mblength = 0;296 rd->rmd1_bits = LE_R1_OWN;297 lp->rx_new = (lp->rx_new + 1) & lp->rx_ring_mod_mask;298 return 0;299 }300 301 skb_reserve(skb, 2); /* 16 byte align */302 skb_put(skb, len); /* make room */303 skb_copy_to_linear_data(skb,304 (unsigned char *)&ib->rx_buf[lp->rx_new][0],305 len);306 skb->protocol = eth_type_trans(skb, dev);307 netif_rx(skb);308 dev->stats.rx_packets++;309 dev->stats.rx_bytes += len;310 }311 312 /* Return the packet to the pool */313 rd->mblength = 0;314 rd->rmd1_bits = LE_R1_OWN;315 lp->rx_new = (lp->rx_new + 1) & lp->rx_ring_mod_mask;316 }317 return 0;318}319 320static int lance_tx(struct net_device *dev)321{322 struct lance_private *lp = netdev_priv(dev);323 volatile struct lance_init_block *ib = lp->init_block;324 volatile struct lance_regs *ll = lp->ll;325 volatile struct lance_tx_desc *td;326 int i, j;327 int status;328 329 /* csr0 is 2f3 */330 ll->rdp = LE_C0_TINT | LE_C0_INEA;331 /* csr0 is 73 */332 333 j = lp->tx_old;334 for (i = j; i != lp->tx_new; i = j) {335 td = &ib->btx_ring[i];336 337 /* If we hit a packet not owned by us, stop */338 if (td->tmd1_bits & LE_T1_OWN)339 break;340 341 if (td->tmd1_bits & LE_T1_ERR) {342 status = td->misc;343 344 dev->stats.tx_errors++;345 if (status & LE_T3_RTY)346 dev->stats.tx_aborted_errors++;347 if (status & LE_T3_LCOL)348 dev->stats.tx_window_errors++;349 350 if (status & LE_T3_CLOS) {351 dev->stats.tx_carrier_errors++;352 if (lp->auto_select) {353 lp->tpe = 1 - lp->tpe;354 netdev_err(dev, "Carrier Lost, trying %s\n",355 lp->tpe ? "TPE" : "AUI");356 /* Stop the lance */357 ll->rap = LE_CSR0;358 ll->rdp = LE_C0_STOP;359 lance_init_ring(dev);360 load_csrs(lp);361 init_restart_lance(lp);362 return 0;363 }364 }365 366 /* buffer errors and underflows turn off367 * the transmitter, so restart the adapter368 */369 if (status & (LE_T3_BUF | LE_T3_UFL)) {370 dev->stats.tx_fifo_errors++;371 372 netdev_err(dev, "Tx: ERR_BUF|ERR_UFL, restarting\n");373 /* Stop the lance */374 ll->rap = LE_CSR0;375 ll->rdp = LE_C0_STOP;376 lance_init_ring(dev);377 load_csrs(lp);378 init_restart_lance(lp);379 return 0;380 }381 } else if ((td->tmd1_bits & LE_T1_POK) == LE_T1_POK) {382 /* So we don't count the packet more than once. */383 td->tmd1_bits &= ~(LE_T1_POK);384 385 /* One collision before packet was sent. */386 if (td->tmd1_bits & LE_T1_EONE)387 dev->stats.collisions++;388 389 /* More than one collision, be optimistic. */390 if (td->tmd1_bits & LE_T1_EMORE)391 dev->stats.collisions += 2;392 393 dev->stats.tx_packets++;394 }395 396 j = (j + 1) & lp->tx_ring_mod_mask;397 }398 lp->tx_old = j;399 ll->rdp = LE_C0_TINT | LE_C0_INEA;400 return 0;401}402 403static int lance_tx_buffs_avail(struct lance_private *lp)404{405 if (lp->tx_old <= lp->tx_new)406 return lp->tx_old + lp->tx_ring_mod_mask - lp->tx_new;407 return lp->tx_old - lp->tx_new - 1;408}409 410static irqreturn_t lance_interrupt(int irq, void *dev_id)411{412 struct net_device *dev = dev_id;413 struct lance_private *lp = netdev_priv(dev);414 volatile struct lance_regs *ll = lp->ll;415 int csr0;416 417 ll->rap = LE_CSR0; /* LANCE Controller Status */418 csr0 = ll->rdp;419 420 if (!(csr0 & LE_C0_INTR)) /* Check if any interrupt has */421 return IRQ_NONE; /* been generated by the Lance. */422 423 /* Acknowledge all the interrupt sources ASAP */424 ll->rdp = csr0 & ~(LE_C0_INEA | LE_C0_TDMD | LE_C0_STOP | LE_C0_STRT |425 LE_C0_INIT);426 427 if (csr0 & LE_C0_ERR) {428 /* Clear the error condition */429 ll->rdp = LE_C0_BABL | LE_C0_ERR | LE_C0_MISS | LE_C0_INEA;430 }431 432 if (csr0 & LE_C0_RINT)433 lance_rx(dev);434 435 if (csr0 & LE_C0_TINT)436 lance_tx(dev);437 438 /* Log misc errors. */439 if (csr0 & LE_C0_BABL)440 dev->stats.tx_errors++; /* Tx babble. */441 if (csr0 & LE_C0_MISS)442 dev->stats.rx_errors++; /* Missed a Rx frame. */443 if (csr0 & LE_C0_MERR) {444 netdev_err(dev, "Bus master arbitration failure, status %04x\n",445 csr0);446 /* Restart the chip. */447 ll->rdp = LE_C0_STRT;448 }449 450 if (netif_queue_stopped(dev) && lance_tx_buffs_avail(lp) > 0)451 netif_wake_queue(dev);452 453 ll->rap = LE_CSR0;454 ll->rdp = (LE_C0_BABL | LE_C0_CERR | LE_C0_MISS | LE_C0_MERR |455 LE_C0_IDON | LE_C0_INEA);456 return IRQ_HANDLED;457}458 459static int lance_open(struct net_device *dev)460{461 struct lance_private *lp = netdev_priv(dev);462 volatile struct lance_regs *ll = lp->ll;463 int ret;464 465 /* Stop the Lance */466 ll->rap = LE_CSR0;467 ll->rdp = LE_C0_STOP;468 469 /* Install the Interrupt handler */470 ret = request_irq(IRQ_AMIGA_PORTS, lance_interrupt, IRQF_SHARED,471 dev->name, dev);472 if (ret)473 return ret;474 475 load_csrs(lp);476 lance_init_ring(dev);477 478 netif_start_queue(dev);479 480 return init_restart_lance(lp);481}482 483static int lance_close(struct net_device *dev)484{485 struct lance_private *lp = netdev_priv(dev);486 volatile struct lance_regs *ll = lp->ll;487 488 netif_stop_queue(dev);489 del_timer_sync(&lp->multicast_timer);490 491 /* Stop the card */492 ll->rap = LE_CSR0;493 ll->rdp = LE_C0_STOP;494 495 free_irq(IRQ_AMIGA_PORTS, dev);496 return 0;497}498 499static inline int lance_reset(struct net_device *dev)500{501 struct lance_private *lp = netdev_priv(dev);502 volatile struct lance_regs *ll = lp->ll;503 int status;504 505 /* Stop the lance */506 ll->rap = LE_CSR0;507 ll->rdp = LE_C0_STOP;508 509 load_csrs(lp);510 511 lance_init_ring(dev);512 netif_trans_update(dev); /* prevent tx timeout */513 netif_start_queue(dev);514 515 status = init_restart_lance(lp);516 netdev_dbg(dev, "Lance restart=%d\n", status);517 518 return status;519}520 521static void lance_tx_timeout(struct net_device *dev, unsigned int txqueue)522{523 struct lance_private *lp = netdev_priv(dev);524 volatile struct lance_regs *ll = lp->ll;525 526 netdev_err(dev, "transmit timed out, status %04x, reset\n", ll->rdp);527 lance_reset(dev);528 netif_wake_queue(dev);529}530 531static netdev_tx_t lance_start_xmit(struct sk_buff *skb,532 struct net_device *dev)533{534 struct lance_private *lp = netdev_priv(dev);535 volatile struct lance_regs *ll = lp->ll;536 volatile struct lance_init_block *ib = lp->init_block;537 int entry, skblen;538 int status = NETDEV_TX_OK;539 unsigned long flags;540 541 if (skb_padto(skb, ETH_ZLEN))542 return NETDEV_TX_OK;543 skblen = max_t(unsigned, skb->len, ETH_ZLEN);544 545 local_irq_save(flags);546 547 if (!lance_tx_buffs_avail(lp))548 goto out_free;549 550 /* dump the packet */551 print_hex_dump_debug("skb->data: ", DUMP_PREFIX_NONE, 16, 1, skb->data,552 64, true);553 554 entry = lp->tx_new & lp->tx_ring_mod_mask;555 ib->btx_ring[entry].length = (-skblen) | 0xf000;556 ib->btx_ring[entry].misc = 0;557 558 skb_copy_from_linear_data(skb, (void *)&ib->tx_buf[entry][0], skblen);559 560 /* Now, give the packet to the lance */561 ib->btx_ring[entry].tmd1_bits = (LE_T1_POK | LE_T1_OWN);562 lp->tx_new = (lp->tx_new+1) & lp->tx_ring_mod_mask;563 dev->stats.tx_bytes += skblen;564 565 if (lance_tx_buffs_avail(lp) <= 0)566 netif_stop_queue(dev);567 568 /* Kick the lance: transmit now */569 ll->rdp = LE_C0_INEA | LE_C0_TDMD;570 out_free:571 dev_kfree_skb(skb);572 573 local_irq_restore(flags);574 575 return status;576}577 578/* taken from the depca driver */579static void lance_load_multicast(struct net_device *dev)580{581 struct lance_private *lp = netdev_priv(dev);582 volatile struct lance_init_block *ib = lp->init_block;583 volatile u16 *mcast_table = (u16 *)&ib->filter;584 struct netdev_hw_addr *ha;585 u32 crc;586 587 /* set all multicast bits */588 if (dev->flags & IFF_ALLMULTI) {589 ib->filter[0] = 0xffffffff;590 ib->filter[1] = 0xffffffff;591 return;592 }593 /* clear the multicast filter */594 ib->filter[0] = 0;595 ib->filter[1] = 0;596 597 /* Add addresses */598 netdev_for_each_mc_addr(ha, dev) {599 crc = ether_crc_le(6, ha->addr);600 crc = crc >> 26;601 mcast_table[crc >> 4] |= 1 << (crc & 0xf);602 }603}604 605static void lance_set_multicast(struct net_device *dev)606{607 struct lance_private *lp = netdev_priv(dev);608 volatile struct lance_init_block *ib = lp->init_block;609 volatile struct lance_regs *ll = lp->ll;610 611 if (!netif_running(dev))612 return;613 614 if (lp->tx_old != lp->tx_new) {615 mod_timer(&lp->multicast_timer, jiffies + 4);616 netif_wake_queue(dev);617 return;618 }619 620 netif_stop_queue(dev);621 622 ll->rap = LE_CSR0;623 ll->rdp = LE_C0_STOP;624 lance_init_ring(dev);625 626 if (dev->flags & IFF_PROMISC) {627 ib->mode |= LE_MO_PROM;628 } else {629 ib->mode &= ~LE_MO_PROM;630 lance_load_multicast(dev);631 }632 load_csrs(lp);633 init_restart_lance(lp);634 netif_wake_queue(dev);635}636 637static void lance_set_multicast_retry(struct timer_list *t)638{639 struct lance_private *lp = from_timer(lp, t, multicast_timer);640 641 lance_set_multicast(lp->dev);642}643 644static int a2065_init_one(struct zorro_dev *z,645 const struct zorro_device_id *ent);646static void a2065_remove_one(struct zorro_dev *z);647 648 649static const struct zorro_device_id a2065_zorro_tbl[] = {650 { ZORRO_PROD_CBM_A2065_1 },651 { ZORRO_PROD_CBM_A2065_2 },652 { ZORRO_PROD_AMERISTAR_A2065 },653 { 0 }654};655MODULE_DEVICE_TABLE(zorro, a2065_zorro_tbl);656 657static struct zorro_driver a2065_driver = {658 .name = "a2065",659 .id_table = a2065_zorro_tbl,660 .probe = a2065_init_one,661 .remove = a2065_remove_one,662};663 664static const struct net_device_ops lance_netdev_ops = {665 .ndo_open = lance_open,666 .ndo_stop = lance_close,667 .ndo_start_xmit = lance_start_xmit,668 .ndo_tx_timeout = lance_tx_timeout,669 .ndo_set_rx_mode = lance_set_multicast,670 .ndo_validate_addr = eth_validate_addr,671 .ndo_set_mac_address = eth_mac_addr,672};673 674static int a2065_init_one(struct zorro_dev *z,675 const struct zorro_device_id *ent)676{677 struct net_device *dev;678 struct lance_private *priv;679 unsigned long board = z->resource.start;680 unsigned long base_addr = board + A2065_LANCE;681 unsigned long mem_start = board + A2065_RAM;682 struct resource *r1, *r2;683 u8 addr[ETH_ALEN];684 u32 serial;685 int err;686 687 r1 = request_mem_region(base_addr, sizeof(struct lance_regs),688 "Am7990");689 if (!r1)690 return -EBUSY;691 r2 = request_mem_region(mem_start, A2065_RAM_SIZE, "RAM");692 if (!r2) {693 release_mem_region(base_addr, sizeof(struct lance_regs));694 return -EBUSY;695 }696 697 dev = alloc_etherdev(sizeof(struct lance_private));698 if (!dev) {699 release_mem_region(base_addr, sizeof(struct lance_regs));700 release_mem_region(mem_start, A2065_RAM_SIZE);701 return -ENOMEM;702 }703 704 priv = netdev_priv(dev);705 706 r1->name = dev->name;707 r2->name = dev->name;708 709 serial = be32_to_cpu(z->rom.er_SerialNumber);710 addr[0] = 0x00;711 if (z->id != ZORRO_PROD_AMERISTAR_A2065) { /* Commodore */712 addr[1] = 0x80;713 addr[2] = 0x10;714 } else { /* Ameristar */715 addr[1] = 0x00;716 addr[2] = 0x9f;717 }718 addr[3] = (serial >> 16) & 0xff;719 addr[4] = (serial >> 8) & 0xff;720 addr[5] = serial & 0xff;721 eth_hw_addr_set(dev, addr);722 dev->base_addr = (unsigned long)ZTWO_VADDR(base_addr);723 dev->mem_start = (unsigned long)ZTWO_VADDR(mem_start);724 dev->mem_end = dev->mem_start + A2065_RAM_SIZE;725 726 priv->ll = (volatile struct lance_regs *)dev->base_addr;727 priv->init_block = (struct lance_init_block *)dev->mem_start;728 priv->lance_init_block = (struct lance_init_block *)A2065_RAM;729 priv->auto_select = 0;730 priv->busmaster_regval = LE_C3_BSWP;731 732 priv->lance_log_rx_bufs = LANCE_LOG_RX_BUFFERS;733 priv->lance_log_tx_bufs = LANCE_LOG_TX_BUFFERS;734 priv->rx_ring_mod_mask = RX_RING_MOD_MASK;735 priv->tx_ring_mod_mask = TX_RING_MOD_MASK;736 priv->dev = dev;737 738 dev->netdev_ops = &lance_netdev_ops;739 dev->watchdog_timeo = 5*HZ;740 dev->dma = 0;741 742 timer_setup(&priv->multicast_timer, lance_set_multicast_retry, 0);743 744 err = register_netdev(dev);745 if (err) {746 release_mem_region(base_addr, sizeof(struct lance_regs));747 release_mem_region(mem_start, A2065_RAM_SIZE);748 free_netdev(dev);749 return err;750 }751 zorro_set_drvdata(z, dev);752 753 netdev_info(dev, "A2065 at 0x%08lx, Ethernet Address %pM\n",754 board, dev->dev_addr);755 756 return 0;757}758 759 760static void a2065_remove_one(struct zorro_dev *z)761{762 struct net_device *dev = zorro_get_drvdata(z);763 764 unregister_netdev(dev);765 release_mem_region(ZTWO_PADDR(dev->base_addr),766 sizeof(struct lance_regs));767 release_mem_region(ZTWO_PADDR(dev->mem_start), A2065_RAM_SIZE);768 free_netdev(dev);769}770 771static int __init a2065_init_module(void)772{773 return zorro_register_driver(&a2065_driver);774}775 776static void __exit a2065_cleanup_module(void)777{778 zorro_unregister_driver(&a2065_driver);779}780 781module_init(a2065_init_module);782module_exit(a2065_cleanup_module);783 784MODULE_DESCRIPTION("Commodore A2065 Ethernet driver");785MODULE_LICENSE("GPL");786