This source file includes following definitions.
- to_ax_dev
- ax_initial_check
- ax_reset_8390
- ax_ei_interrupt_filtered
- ax_get_8390_hdr
- ax_block_input
- ax_block_output
- ax_handle_link_change
- ax_mii_probe
- ax_phy_switch
- ax_bb_mdc
- ax_bb_dir
- ax_bb_set_data
- ax_bb_get_data
- ax_mii_init
- ax_open
- ax_close
- ax_ioctl
- ax_get_drvinfo
- ax_get_msglevel
- ax_set_msglevel
- ax_eeprom_register_read
- ax_eeprom_register_write
- ax_initial_setup
- ax_init_dev
- ax_remove
- ax_probe
- ax_suspend
- ax_resume
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11 #include <linux/module.h>
12 #include <linux/kernel.h>
13 #include <linux/errno.h>
14 #include <linux/isapnp.h>
15 #include <linux/interrupt.h>
16 #include <linux/io.h>
17 #include <linux/platform_device.h>
18 #include <linux/delay.h>
19 #include <linux/timer.h>
20 #include <linux/netdevice.h>
21 #include <linux/etherdevice.h>
22 #include <linux/ethtool.h>
23 #include <linux/mdio-bitbang.h>
24 #include <linux/phy.h>
25 #include <linux/eeprom_93cx6.h>
26 #include <linux/slab.h>
27
28 #include <net/ax88796.h>
29
30
31
32 #define __ei_open ax_ei_open
33 #define __ei_close ax_ei_close
34 #define __ei_poll ax_ei_poll
35 #define __ei_start_xmit ax_ei_start_xmit
36 #define __ei_tx_timeout ax_ei_tx_timeout
37 #define __ei_get_stats ax_ei_get_stats
38 #define __ei_set_multicast_list ax_ei_set_multicast_list
39 #define __ei_interrupt ax_ei_interrupt
40 #define ____alloc_ei_netdev ax__alloc_ei_netdev
41 #define __NS8390_init ax_NS8390_init
42
43
44 #define ax_convert_addr(_a) ((void __force __iomem *)(_a))
45
46 #define ei_inb(_a) readb(ax_convert_addr(_a))
47 #define ei_outb(_v, _a) writeb(_v, ax_convert_addr(_a))
48
49 #define ei_inb_p(_a) ei_inb(_a)
50 #define ei_outb_p(_v, _a) ei_outb(_v, _a)
51
52
53 #define EI_SHIFT(x) (ei_local->reg_offset[(x)])
54
55
56 #define AX88796_PLATFORM
57
58 static unsigned char version[] = "ax88796.c: Copyright 2005,2007 Simtec Electronics\n";
59
60 #include "lib8390.c"
61
62 #define DRV_NAME "ax88796"
63 #define DRV_VERSION "1.00"
64
65
66 #define NE_CMD EI_SHIFT(0x00)
67 #define NE_RESET EI_SHIFT(0x1f)
68 #define NE_DATAPORT EI_SHIFT(0x10)
69
70 #define NE1SM_START_PG 0x20
71 #define NE1SM_STOP_PG 0x40
72 #define NESM_START_PG 0x40
73 #define NESM_STOP_PG 0x80
74
75 #define AX_GPOC_PPDSET BIT(6)
76
77
78
79 struct ax_device {
80 struct mii_bus *mii_bus;
81 struct mdiobb_ctrl bb_ctrl;
82 void __iomem *addr_memr;
83 u8 reg_memr;
84 int link;
85 int speed;
86 int duplex;
87
88 void __iomem *map2;
89 const struct ax_plat_data *plat;
90
91 unsigned char running;
92 unsigned char resume_open;
93 unsigned int irqflags;
94
95 u32 reg_offsets[0x20];
96 };
97
98 static inline struct ax_device *to_ax_dev(struct net_device *dev)
99 {
100 struct ei_device *ei_local = netdev_priv(dev);
101 return (struct ax_device *)(ei_local + 1);
102 }
103
104
105
106
107
108
109
110 static int ax_initial_check(struct net_device *dev)
111 {
112 struct ei_device *ei_local = netdev_priv(dev);
113 void __iomem *ioaddr = ei_local->mem;
114 int reg0;
115 int regd;
116
117 reg0 = ei_inb(ioaddr);
118 if (reg0 == 0xFF)
119 return -ENODEV;
120
121 ei_outb(E8390_NODMA + E8390_PAGE1 + E8390_STOP, ioaddr + E8390_CMD);
122 regd = ei_inb(ioaddr + 0x0d);
123 ei_outb(0xff, ioaddr + 0x0d);
124 ei_outb(E8390_NODMA + E8390_PAGE0, ioaddr + E8390_CMD);
125 ei_inb(ioaddr + EN0_COUNTER0);
126 if (ei_inb(ioaddr + EN0_COUNTER0) != 0) {
127 ei_outb(reg0, ioaddr);
128 ei_outb(regd, ioaddr + 0x0d);
129 return -ENODEV;
130 }
131
132 return 0;
133 }
134
135
136
137
138
139 static void ax_reset_8390(struct net_device *dev)
140 {
141 struct ei_device *ei_local = netdev_priv(dev);
142 unsigned long reset_start_time = jiffies;
143 void __iomem *addr = (void __iomem *)dev->base_addr;
144
145 netif_dbg(ei_local, hw, dev, "resetting the 8390 t=%ld...\n", jiffies);
146
147 ei_outb(ei_inb(addr + NE_RESET), addr + NE_RESET);
148
149 ei_local->txing = 0;
150 ei_local->dmaing = 0;
151
152
153 while ((ei_inb(addr + EN0_ISR) & ENISR_RESET) == 0) {
154 if (time_after(jiffies, reset_start_time + 2 * HZ / 100)) {
155 netdev_warn(dev, "%s: did not complete.\n", __func__);
156 break;
157 }
158 }
159
160 ei_outb(ENISR_RESET, addr + EN0_ISR);
161 }
162
163
164
165
166
167 static irqreturn_t ax_ei_interrupt_filtered(int irq, void *dev_id)
168 {
169 struct net_device *dev = dev_id;
170 struct ax_device *ax = to_ax_dev(dev);
171 struct platform_device *pdev = to_platform_device(dev->dev.parent);
172
173 if (!ax->plat->check_irq(pdev))
174 return IRQ_NONE;
175
176 return ax_ei_interrupt(irq, dev_id);
177 }
178
179 static void ax_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
180 int ring_page)
181 {
182 struct ei_device *ei_local = netdev_priv(dev);
183 void __iomem *nic_base = ei_local->mem;
184
185
186 if (ei_local->dmaing) {
187 netdev_err(dev, "DMAing conflict in %s "
188 "[DMAstat:%d][irqlock:%d].\n",
189 __func__,
190 ei_local->dmaing, ei_local->irqlock);
191 return;
192 }
193
194 ei_local->dmaing |= 0x01;
195 ei_outb(E8390_NODMA + E8390_PAGE0 + E8390_START, nic_base + NE_CMD);
196 ei_outb(sizeof(struct e8390_pkt_hdr), nic_base + EN0_RCNTLO);
197 ei_outb(0, nic_base + EN0_RCNTHI);
198 ei_outb(0, nic_base + EN0_RSARLO);
199 ei_outb(ring_page, nic_base + EN0_RSARHI);
200 ei_outb(E8390_RREAD+E8390_START, nic_base + NE_CMD);
201
202 if (ei_local->word16)
203 ioread16_rep(nic_base + NE_DATAPORT, hdr,
204 sizeof(struct e8390_pkt_hdr) >> 1);
205 else
206 ioread8_rep(nic_base + NE_DATAPORT, hdr,
207 sizeof(struct e8390_pkt_hdr));
208
209 ei_outb(ENISR_RDC, nic_base + EN0_ISR);
210 ei_local->dmaing &= ~0x01;
211
212 le16_to_cpus(&hdr->count);
213 }
214
215
216
217
218
219
220
221
222
223 static void ax_block_input(struct net_device *dev, int count,
224 struct sk_buff *skb, int ring_offset)
225 {
226 struct ei_device *ei_local = netdev_priv(dev);
227 void __iomem *nic_base = ei_local->mem;
228 char *buf = skb->data;
229
230 if (ei_local->dmaing) {
231 netdev_err(dev,
232 "DMAing conflict in %s "
233 "[DMAstat:%d][irqlock:%d].\n",
234 __func__,
235 ei_local->dmaing, ei_local->irqlock);
236 return;
237 }
238
239 ei_local->dmaing |= 0x01;
240
241 ei_outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base + NE_CMD);
242 ei_outb(count & 0xff, nic_base + EN0_RCNTLO);
243 ei_outb(count >> 8, nic_base + EN0_RCNTHI);
244 ei_outb(ring_offset & 0xff, nic_base + EN0_RSARLO);
245 ei_outb(ring_offset >> 8, nic_base + EN0_RSARHI);
246 ei_outb(E8390_RREAD+E8390_START, nic_base + NE_CMD);
247
248 if (ei_local->word16) {
249 ioread16_rep(nic_base + NE_DATAPORT, buf, count >> 1);
250 if (count & 0x01)
251 buf[count-1] = ei_inb(nic_base + NE_DATAPORT);
252
253 } else {
254 ioread8_rep(nic_base + NE_DATAPORT, buf, count);
255 }
256
257 ei_local->dmaing &= ~1;
258 }
259
260 static void ax_block_output(struct net_device *dev, int count,
261 const unsigned char *buf, const int start_page)
262 {
263 struct ei_device *ei_local = netdev_priv(dev);
264 void __iomem *nic_base = ei_local->mem;
265 unsigned long dma_start;
266
267
268
269
270
271
272 if (ei_local->word16 && (count & 0x01))
273 count++;
274
275
276 if (ei_local->dmaing) {
277 netdev_err(dev, "DMAing conflict in %s."
278 "[DMAstat:%d][irqlock:%d]\n",
279 __func__,
280 ei_local->dmaing, ei_local->irqlock);
281 return;
282 }
283
284 ei_local->dmaing |= 0x01;
285
286 ei_outb(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD);
287
288 ei_outb(ENISR_RDC, nic_base + EN0_ISR);
289
290
291 ei_outb(count & 0xff, nic_base + EN0_RCNTLO);
292 ei_outb(count >> 8, nic_base + EN0_RCNTHI);
293 ei_outb(0x00, nic_base + EN0_RSARLO);
294 ei_outb(start_page, nic_base + EN0_RSARHI);
295
296 ei_outb(E8390_RWRITE+E8390_START, nic_base + NE_CMD);
297 if (ei_local->word16)
298 iowrite16_rep(nic_base + NE_DATAPORT, buf, count >> 1);
299 else
300 iowrite8_rep(nic_base + NE_DATAPORT, buf, count);
301
302 dma_start = jiffies;
303
304 while ((ei_inb(nic_base + EN0_ISR) & ENISR_RDC) == 0) {
305 if (time_after(jiffies, dma_start + 2 * HZ / 100)) {
306 netdev_warn(dev, "timeout waiting for Tx RDC.\n");
307 ax_reset_8390(dev);
308 ax_NS8390_init(dev, 1);
309 break;
310 }
311 }
312
313 ei_outb(ENISR_RDC, nic_base + EN0_ISR);
314 ei_local->dmaing &= ~0x01;
315 }
316
317
318
319 #define AX_MEMR EI_SHIFT(0x14)
320 #define AX_MEMR_MDC BIT(0)
321 #define AX_MEMR_MDIR BIT(1)
322 #define AX_MEMR_MDI BIT(2)
323 #define AX_MEMR_MDO BIT(3)
324 #define AX_MEMR_EECS BIT(4)
325 #define AX_MEMR_EEI BIT(5)
326 #define AX_MEMR_EEO BIT(6)
327 #define AX_MEMR_EECLK BIT(7)
328
329 static void ax_handle_link_change(struct net_device *dev)
330 {
331 struct ax_device *ax = to_ax_dev(dev);
332 struct phy_device *phy_dev = dev->phydev;
333 int status_change = 0;
334
335 if (phy_dev->link && ((ax->speed != phy_dev->speed) ||
336 (ax->duplex != phy_dev->duplex))) {
337
338 ax->speed = phy_dev->speed;
339 ax->duplex = phy_dev->duplex;
340 status_change = 1;
341 }
342
343 if (phy_dev->link != ax->link) {
344 if (!phy_dev->link) {
345 ax->speed = 0;
346 ax->duplex = -1;
347 }
348 ax->link = phy_dev->link;
349
350 status_change = 1;
351 }
352
353 if (status_change)
354 phy_print_status(phy_dev);
355 }
356
357 static int ax_mii_probe(struct net_device *dev)
358 {
359 struct ax_device *ax = to_ax_dev(dev);
360 struct phy_device *phy_dev = NULL;
361 int ret;
362
363
364 phy_dev = phy_find_first(ax->mii_bus);
365 if (!phy_dev) {
366 netdev_err(dev, "no PHY found\n");
367 return -ENODEV;
368 }
369
370 ret = phy_connect_direct(dev, phy_dev, ax_handle_link_change,
371 PHY_INTERFACE_MODE_MII);
372 if (ret) {
373 netdev_err(dev, "Could not attach to PHY\n");
374 return ret;
375 }
376
377 phy_set_max_speed(phy_dev, SPEED_100);
378
379 netdev_info(dev, "PHY driver [%s] (mii_bus:phy_addr=%s, irq=%d)\n",
380 phy_dev->drv->name, phydev_name(phy_dev), phy_dev->irq);
381
382 return 0;
383 }
384
385 static void ax_phy_switch(struct net_device *dev, int on)
386 {
387 struct ei_device *ei_local = netdev_priv(dev);
388 struct ax_device *ax = to_ax_dev(dev);
389
390 u8 reg_gpoc = ax->plat->gpoc_val;
391
392 if (!!on)
393 reg_gpoc &= ~AX_GPOC_PPDSET;
394 else
395 reg_gpoc |= AX_GPOC_PPDSET;
396
397 ei_outb(reg_gpoc, ei_local->mem + EI_SHIFT(0x17));
398 }
399
400 static void ax_bb_mdc(struct mdiobb_ctrl *ctrl, int level)
401 {
402 struct ax_device *ax = container_of(ctrl, struct ax_device, bb_ctrl);
403
404 if (level)
405 ax->reg_memr |= AX_MEMR_MDC;
406 else
407 ax->reg_memr &= ~AX_MEMR_MDC;
408
409 ei_outb(ax->reg_memr, ax->addr_memr);
410 }
411
412 static void ax_bb_dir(struct mdiobb_ctrl *ctrl, int output)
413 {
414 struct ax_device *ax = container_of(ctrl, struct ax_device, bb_ctrl);
415
416 if (output)
417 ax->reg_memr &= ~AX_MEMR_MDIR;
418 else
419 ax->reg_memr |= AX_MEMR_MDIR;
420
421 ei_outb(ax->reg_memr, ax->addr_memr);
422 }
423
424 static void ax_bb_set_data(struct mdiobb_ctrl *ctrl, int value)
425 {
426 struct ax_device *ax = container_of(ctrl, struct ax_device, bb_ctrl);
427
428 if (value)
429 ax->reg_memr |= AX_MEMR_MDO;
430 else
431 ax->reg_memr &= ~AX_MEMR_MDO;
432
433 ei_outb(ax->reg_memr, ax->addr_memr);
434 }
435
436 static int ax_bb_get_data(struct mdiobb_ctrl *ctrl)
437 {
438 struct ax_device *ax = container_of(ctrl, struct ax_device, bb_ctrl);
439 int reg_memr = ei_inb(ax->addr_memr);
440
441 return reg_memr & AX_MEMR_MDI ? 1 : 0;
442 }
443
444 static const struct mdiobb_ops bb_ops = {
445 .owner = THIS_MODULE,
446 .set_mdc = ax_bb_mdc,
447 .set_mdio_dir = ax_bb_dir,
448 .set_mdio_data = ax_bb_set_data,
449 .get_mdio_data = ax_bb_get_data,
450 };
451
452 static int ax_mii_init(struct net_device *dev)
453 {
454 struct platform_device *pdev = to_platform_device(dev->dev.parent);
455 struct ei_device *ei_local = netdev_priv(dev);
456 struct ax_device *ax = to_ax_dev(dev);
457 int err;
458
459 ax->bb_ctrl.ops = &bb_ops;
460 ax->addr_memr = ei_local->mem + AX_MEMR;
461 ax->mii_bus = alloc_mdio_bitbang(&ax->bb_ctrl);
462 if (!ax->mii_bus) {
463 err = -ENOMEM;
464 goto out;
465 }
466
467 ax->mii_bus->name = "ax88796_mii_bus";
468 ax->mii_bus->parent = dev->dev.parent;
469 snprintf(ax->mii_bus->id, MII_BUS_ID_SIZE, "%s-%x",
470 pdev->name, pdev->id);
471
472 err = mdiobus_register(ax->mii_bus);
473 if (err)
474 goto out_free_mdio_bitbang;
475
476 return 0;
477
478 out_free_mdio_bitbang:
479 free_mdio_bitbang(ax->mii_bus);
480 out:
481 return err;
482 }
483
484 static int ax_open(struct net_device *dev)
485 {
486 struct ax_device *ax = to_ax_dev(dev);
487 int ret;
488
489 netdev_dbg(dev, "open\n");
490
491 ret = ax_mii_init(dev);
492 if (ret)
493 goto failed_mii;
494
495 if (ax->plat->check_irq)
496 ret = request_irq(dev->irq, ax_ei_interrupt_filtered,
497 ax->irqflags, dev->name, dev);
498 else
499 ret = request_irq(dev->irq, ax_ei_interrupt, ax->irqflags,
500 dev->name, dev);
501 if (ret)
502 goto failed_request_irq;
503
504
505 ax_phy_switch(dev, 1);
506
507 ret = ax_mii_probe(dev);
508 if (ret)
509 goto failed_mii_probe;
510 phy_start(dev->phydev);
511
512 ret = ax_ei_open(dev);
513 if (ret)
514 goto failed_ax_ei_open;
515
516 ax->running = 1;
517
518 return 0;
519
520 failed_ax_ei_open:
521 phy_disconnect(dev->phydev);
522 failed_mii_probe:
523 ax_phy_switch(dev, 0);
524 free_irq(dev->irq, dev);
525 failed_request_irq:
526
527 mdiobus_unregister(ax->mii_bus);
528 free_mdio_bitbang(ax->mii_bus);
529 failed_mii:
530 return ret;
531 }
532
533 static int ax_close(struct net_device *dev)
534 {
535 struct ax_device *ax = to_ax_dev(dev);
536
537 netdev_dbg(dev, "close\n");
538
539 ax->running = 0;
540 wmb();
541
542 ax_ei_close(dev);
543
544
545 ax_phy_switch(dev, 0);
546 phy_disconnect(dev->phydev);
547
548 free_irq(dev->irq, dev);
549
550 mdiobus_unregister(ax->mii_bus);
551 free_mdio_bitbang(ax->mii_bus);
552 return 0;
553 }
554
555 static int ax_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
556 {
557 struct phy_device *phy_dev = dev->phydev;
558
559 if (!netif_running(dev))
560 return -EINVAL;
561
562 if (!phy_dev)
563 return -ENODEV;
564
565 return phy_mii_ioctl(phy_dev, req, cmd);
566 }
567
568
569
570 static void ax_get_drvinfo(struct net_device *dev,
571 struct ethtool_drvinfo *info)
572 {
573 struct platform_device *pdev = to_platform_device(dev->dev.parent);
574
575 strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
576 strlcpy(info->version, DRV_VERSION, sizeof(info->version));
577 strlcpy(info->bus_info, pdev->name, sizeof(info->bus_info));
578 }
579
580 static u32 ax_get_msglevel(struct net_device *dev)
581 {
582 struct ei_device *ei_local = netdev_priv(dev);
583
584 return ei_local->msg_enable;
585 }
586
587 static void ax_set_msglevel(struct net_device *dev, u32 v)
588 {
589 struct ei_device *ei_local = netdev_priv(dev);
590
591 ei_local->msg_enable = v;
592 }
593
594 static const struct ethtool_ops ax_ethtool_ops = {
595 .get_drvinfo = ax_get_drvinfo,
596 .get_link = ethtool_op_get_link,
597 .get_ts_info = ethtool_op_get_ts_info,
598 .get_msglevel = ax_get_msglevel,
599 .set_msglevel = ax_set_msglevel,
600 .get_link_ksettings = phy_ethtool_get_link_ksettings,
601 .set_link_ksettings = phy_ethtool_set_link_ksettings,
602 };
603
604 #ifdef CONFIG_AX88796_93CX6
605 static void ax_eeprom_register_read(struct eeprom_93cx6 *eeprom)
606 {
607 struct ei_device *ei_local = eeprom->data;
608 u8 reg = ei_inb(ei_local->mem + AX_MEMR);
609
610 eeprom->reg_data_in = reg & AX_MEMR_EEI;
611 eeprom->reg_data_out = reg & AX_MEMR_EEO;
612 eeprom->reg_data_clock = reg & AX_MEMR_EECLK;
613 eeprom->reg_chip_select = reg & AX_MEMR_EECS;
614 }
615
616 static void ax_eeprom_register_write(struct eeprom_93cx6 *eeprom)
617 {
618 struct ei_device *ei_local = eeprom->data;
619 u8 reg = ei_inb(ei_local->mem + AX_MEMR);
620
621 reg &= ~(AX_MEMR_EEI | AX_MEMR_EECLK | AX_MEMR_EECS);
622
623 if (eeprom->reg_data_in)
624 reg |= AX_MEMR_EEI;
625 if (eeprom->reg_data_clock)
626 reg |= AX_MEMR_EECLK;
627 if (eeprom->reg_chip_select)
628 reg |= AX_MEMR_EECS;
629
630 ei_outb(reg, ei_local->mem + AX_MEMR);
631 udelay(10);
632 }
633 #endif
634
635 static const struct net_device_ops ax_netdev_ops = {
636 .ndo_open = ax_open,
637 .ndo_stop = ax_close,
638 .ndo_do_ioctl = ax_ioctl,
639
640 .ndo_start_xmit = ax_ei_start_xmit,
641 .ndo_tx_timeout = ax_ei_tx_timeout,
642 .ndo_get_stats = ax_ei_get_stats,
643 .ndo_set_rx_mode = ax_ei_set_multicast_list,
644 .ndo_validate_addr = eth_validate_addr,
645 .ndo_set_mac_address = eth_mac_addr,
646 #ifdef CONFIG_NET_POLL_CONTROLLER
647 .ndo_poll_controller = ax_ei_poll,
648 #endif
649 };
650
651
652
653 static void ax_initial_setup(struct net_device *dev, struct ei_device *ei_local)
654 {
655 void __iomem *ioaddr = ei_local->mem;
656 struct ax_device *ax = to_ax_dev(dev);
657
658
659 ei_outb(E8390_NODMA + E8390_PAGE0 + E8390_STOP, ioaddr + E8390_CMD);
660
661
662 ei_outb(ax->plat->dcr_val & ~1, ioaddr + EN0_DCFG);
663 ei_outb(ax->plat->gpoc_val, ioaddr + EI_SHIFT(0x17));
664 }
665
666
667
668
669
670
671
672
673
674 static int ax_init_dev(struct net_device *dev)
675 {
676 struct ei_device *ei_local = netdev_priv(dev);
677 struct ax_device *ax = to_ax_dev(dev);
678 void __iomem *ioaddr = ei_local->mem;
679 unsigned int start_page;
680 unsigned int stop_page;
681 int ret;
682 int i;
683
684 ret = ax_initial_check(dev);
685 if (ret)
686 goto err_out;
687
688
689
690 ax_initial_setup(dev, ei_local);
691
692
693
694 if (ax->plat->flags & AXFLG_HAS_EEPROM) {
695 unsigned char SA_prom[32];
696
697 ei_outb(6, ioaddr + EN0_RCNTLO);
698 ei_outb(0, ioaddr + EN0_RCNTHI);
699 ei_outb(0, ioaddr + EN0_RSARLO);
700 ei_outb(0, ioaddr + EN0_RSARHI);
701 ei_outb(E8390_RREAD + E8390_START, ioaddr + NE_CMD);
702 for (i = 0; i < sizeof(SA_prom); i += 2) {
703 SA_prom[i] = ei_inb(ioaddr + NE_DATAPORT);
704 SA_prom[i + 1] = ei_inb(ioaddr + NE_DATAPORT);
705 }
706 ei_outb(ENISR_RDC, ioaddr + EN0_ISR);
707
708 if (ax->plat->wordlength == 2)
709 for (i = 0; i < 16; i++)
710 SA_prom[i] = SA_prom[i+i];
711
712 memcpy(dev->dev_addr, SA_prom, ETH_ALEN);
713 }
714
715 #ifdef CONFIG_AX88796_93CX6
716 if (ax->plat->flags & AXFLG_HAS_93CX6) {
717 unsigned char mac_addr[ETH_ALEN];
718 struct eeprom_93cx6 eeprom;
719
720 eeprom.data = ei_local;
721 eeprom.register_read = ax_eeprom_register_read;
722 eeprom.register_write = ax_eeprom_register_write;
723 eeprom.width = PCI_EEPROM_WIDTH_93C56;
724
725 eeprom_93cx6_multiread(&eeprom, 0,
726 (__le16 __force *)mac_addr,
727 sizeof(mac_addr) >> 1);
728
729 memcpy(dev->dev_addr, mac_addr, ETH_ALEN);
730 }
731 #endif
732 if (ax->plat->wordlength == 2) {
733
734 ei_outb(ax->plat->dcr_val, ei_local->mem + EN0_DCFG);
735 start_page = NESM_START_PG;
736 stop_page = NESM_STOP_PG;
737 } else {
738 start_page = NE1SM_START_PG;
739 stop_page = NE1SM_STOP_PG;
740 }
741
742
743 if (ax->plat->flags & AXFLG_MAC_FROMDEV) {
744 ei_outb(E8390_NODMA + E8390_PAGE1 + E8390_STOP,
745 ei_local->mem + E8390_CMD);
746 for (i = 0; i < ETH_ALEN; i++)
747 dev->dev_addr[i] =
748 ei_inb(ioaddr + EN1_PHYS_SHIFT(i));
749 }
750
751 if ((ax->plat->flags & AXFLG_MAC_FROMPLATFORM) &&
752 ax->plat->mac_addr)
753 memcpy(dev->dev_addr, ax->plat->mac_addr, ETH_ALEN);
754
755 if (!is_valid_ether_addr(dev->dev_addr)) {
756 eth_hw_addr_random(dev);
757 dev_info(&dev->dev, "Using random MAC address: %pM\n",
758 dev->dev_addr);
759 }
760
761 ax_reset_8390(dev);
762
763 ei_local->name = "AX88796";
764 ei_local->tx_start_page = start_page;
765 ei_local->stop_page = stop_page;
766 ei_local->word16 = (ax->plat->wordlength == 2);
767 ei_local->rx_start_page = start_page + TX_PAGES;
768
769 #ifdef PACKETBUF_MEMSIZE
770
771 ei_local->stop_page = ei_local->tx_start_page + PACKETBUF_MEMSIZE;
772 #endif
773
774 ei_local->reset_8390 = &ax_reset_8390;
775 if (ax->plat->block_input)
776 ei_local->block_input = ax->plat->block_input;
777 else
778 ei_local->block_input = &ax_block_input;
779 if (ax->plat->block_output)
780 ei_local->block_output = ax->plat->block_output;
781 else
782 ei_local->block_output = &ax_block_output;
783 ei_local->get_8390_hdr = &ax_get_8390_hdr;
784 ei_local->priv = 0;
785
786 dev->netdev_ops = &ax_netdev_ops;
787 dev->ethtool_ops = &ax_ethtool_ops;
788
789 ax_NS8390_init(dev, 0);
790
791 ret = register_netdev(dev);
792 if (ret)
793 goto err_out;
794
795 netdev_info(dev, "%dbit, irq %d, %lx, MAC: %pM\n",
796 ei_local->word16 ? 16 : 8, dev->irq, dev->base_addr,
797 dev->dev_addr);
798
799 return 0;
800
801 err_out:
802 return ret;
803 }
804
805 static int ax_remove(struct platform_device *pdev)
806 {
807 struct net_device *dev = platform_get_drvdata(pdev);
808 struct ei_device *ei_local = netdev_priv(dev);
809 struct ax_device *ax = to_ax_dev(dev);
810 struct resource *mem;
811
812 unregister_netdev(dev);
813
814 iounmap(ei_local->mem);
815 mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
816 release_mem_region(mem->start, resource_size(mem));
817
818 if (ax->map2) {
819 iounmap(ax->map2);
820 mem = platform_get_resource(pdev, IORESOURCE_MEM, 1);
821 release_mem_region(mem->start, resource_size(mem));
822 }
823
824 platform_set_drvdata(pdev, NULL);
825 free_netdev(dev);
826
827 return 0;
828 }
829
830
831
832
833
834
835
836
837 static int ax_probe(struct platform_device *pdev)
838 {
839 struct net_device *dev;
840 struct ei_device *ei_local;
841 struct ax_device *ax;
842 struct resource *irq, *mem, *mem2;
843 unsigned long mem_size, mem2_size = 0;
844 int ret = 0;
845
846 dev = ax__alloc_ei_netdev(sizeof(struct ax_device));
847 if (dev == NULL)
848 return -ENOMEM;
849
850
851 SET_NETDEV_DEV(dev, &pdev->dev);
852 ei_local = netdev_priv(dev);
853 ax = to_ax_dev(dev);
854
855 ax->plat = dev_get_platdata(&pdev->dev);
856 platform_set_drvdata(pdev, dev);
857
858 ei_local->rxcr_base = ax->plat->rcr_val;
859
860
861 irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
862 if (!irq) {
863 dev_err(&pdev->dev, "no IRQ specified\n");
864 ret = -ENXIO;
865 goto exit_mem;
866 }
867
868 dev->irq = irq->start;
869 ax->irqflags = irq->flags & IRQF_TRIGGER_MASK;
870
871 if (irq->flags & IORESOURCE_IRQ_SHAREABLE)
872 ax->irqflags |= IRQF_SHARED;
873
874 mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
875 if (!mem) {
876 dev_err(&pdev->dev, "no MEM specified\n");
877 ret = -ENXIO;
878 goto exit_mem;
879 }
880
881 mem_size = resource_size(mem);
882
883
884
885
886
887 if (ax->plat->reg_offsets)
888 ei_local->reg_offset = ax->plat->reg_offsets;
889 else {
890 ei_local->reg_offset = ax->reg_offsets;
891 for (ret = 0; ret < 0x18; ret++)
892 ax->reg_offsets[ret] = (mem_size / 0x18) * ret;
893 }
894
895 if (!request_mem_region(mem->start, mem_size, pdev->name)) {
896 dev_err(&pdev->dev, "cannot reserve registers\n");
897 ret = -ENXIO;
898 goto exit_mem;
899 }
900
901 ei_local->mem = ioremap(mem->start, mem_size);
902 dev->base_addr = (unsigned long)ei_local->mem;
903
904 if (ei_local->mem == NULL) {
905 dev_err(&pdev->dev, "Cannot ioremap area %pR\n", mem);
906
907 ret = -ENXIO;
908 goto exit_req;
909 }
910
911
912 mem2 = platform_get_resource(pdev, IORESOURCE_MEM, 1);
913 if (!mem2) {
914 if (!ax->plat->reg_offsets) {
915 for (ret = 0; ret < 0x20; ret++)
916 ax->reg_offsets[ret] = (mem_size / 0x20) * ret;
917 }
918 } else {
919 mem2_size = resource_size(mem2);
920
921 if (!request_mem_region(mem2->start, mem2_size, pdev->name)) {
922 dev_err(&pdev->dev, "cannot reserve registers\n");
923 ret = -ENXIO;
924 goto exit_mem1;
925 }
926
927 ax->map2 = ioremap(mem2->start, mem2_size);
928 if (!ax->map2) {
929 dev_err(&pdev->dev, "cannot map reset register\n");
930 ret = -ENXIO;
931 goto exit_mem2;
932 }
933
934 ei_local->reg_offset[0x1f] = ax->map2 - ei_local->mem;
935 }
936
937
938 ret = ax_init_dev(dev);
939 if (!ret)
940 return 0;
941
942 if (!ax->map2)
943 goto exit_mem1;
944
945 iounmap(ax->map2);
946
947 exit_mem2:
948 if (mem2)
949 release_mem_region(mem2->start, mem2_size);
950
951 exit_mem1:
952 iounmap(ei_local->mem);
953
954 exit_req:
955 release_mem_region(mem->start, mem_size);
956
957 exit_mem:
958 platform_set_drvdata(pdev, NULL);
959 free_netdev(dev);
960
961 return ret;
962 }
963
964
965
966 #ifdef CONFIG_PM
967 static int ax_suspend(struct platform_device *dev, pm_message_t state)
968 {
969 struct net_device *ndev = platform_get_drvdata(dev);
970 struct ax_device *ax = to_ax_dev(ndev);
971
972 ax->resume_open = ax->running;
973
974 netif_device_detach(ndev);
975 ax_close(ndev);
976
977 return 0;
978 }
979
980 static int ax_resume(struct platform_device *pdev)
981 {
982 struct net_device *ndev = platform_get_drvdata(pdev);
983 struct ax_device *ax = to_ax_dev(ndev);
984
985 ax_initial_setup(ndev, netdev_priv(ndev));
986 ax_NS8390_init(ndev, ax->resume_open);
987 netif_device_attach(ndev);
988
989 if (ax->resume_open)
990 ax_open(ndev);
991
992 return 0;
993 }
994
995 #else
996 #define ax_suspend NULL
997 #define ax_resume NULL
998 #endif
999
1000 static struct platform_driver axdrv = {
1001 .driver = {
1002 .name = "ax88796",
1003 },
1004 .probe = ax_probe,
1005 .remove = ax_remove,
1006 .suspend = ax_suspend,
1007 .resume = ax_resume,
1008 };
1009
1010 module_platform_driver(axdrv);
1011
1012 MODULE_DESCRIPTION("AX88796 10/100 Ethernet platform driver");
1013 MODULE_AUTHOR("Ben Dooks, <ben@simtec.co.uk>");
1014 MODULE_LICENSE("GPL v2");
1015 MODULE_ALIAS("platform:ax88796");