1 /* drivers/net/ax88796.c
3 * Copyright 2005,2007 Simtec Electronics
4 * Ben Dooks <ben@simtec.co.uk>
6 * Asix AX88796 10/100 Ethernet controller support
7 * Based on ne.c, by Donald Becker, et-al.
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
14 #include <linux/module.h>
15 #include <linux/kernel.h>
16 #include <linux/errno.h>
17 #include <linux/isapnp.h>
18 #include <linux/init.h>
19 #include <linux/interrupt.h>
20 #include <linux/platform_device.h>
21 #include <linux/delay.h>
22 #include <linux/timer.h>
23 #include <linux/netdevice.h>
24 #include <linux/etherdevice.h>
25 #include <linux/ethtool.h>
26 #include <linux/mii.h>
27 #include <linux/eeprom_93cx6.h>
29 #include <net/ax88796.h>
31 #include <asm/system.h>
34 static int phy_debug = 0;
36 /* Rename the lib8390.c functions to show that they are in this driver */
37 #define __ei_open ax_ei_open
38 #define __ei_close ax_ei_close
39 #define __ei_poll ax_ei_poll
40 #define __ei_start_xmit ax_ei_start_xmit
41 #define __ei_tx_timeout ax_ei_tx_timeout
42 #define __ei_get_stats ax_ei_get_stats
43 #define __ei_set_multicast_list ax_ei_set_multicast_list
44 #define __ei_interrupt ax_ei_interrupt
45 #define ____alloc_ei_netdev ax__alloc_ei_netdev
46 #define __NS8390_init ax_NS8390_init
48 /* force unsigned long back to 'void __iomem *' */
49 #define ax_convert_addr(_a) ((void __force __iomem *)(_a))
51 #define ei_inb(_a) readb(ax_convert_addr(_a))
52 #define ei_outb(_v, _a) writeb(_v, ax_convert_addr(_a))
54 #define ei_inb_p(_a) ei_inb(_a)
55 #define ei_outb_p(_v, _a) ei_outb(_v, _a)
57 /* define EI_SHIFT() to take into account our register offsets */
58 #define EI_SHIFT(x) (ei_local->reg_offset[(x)])
60 /* Ensure we have our RCR base value */
61 #define AX88796_PLATFORM
63 static unsigned char version[] = "ax88796.c: Copyright 2005,2007 Simtec Electronics\n";
67 #define DRV_NAME "ax88796"
68 #define DRV_VERSION "1.00"
71 #define NE_CMD EI_SHIFT(0x00)
72 #define NE_RESET EI_SHIFT(0x1f)
73 #define NE_DATAPORT EI_SHIFT(0x10)
75 #define NE1SM_START_PG 0x20 /* First page of TX buffer */
76 #define NE1SM_STOP_PG 0x40 /* Last page +1 of RX ring */
77 #define NESM_START_PG 0x40 /* First page of TX buffer */
78 #define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */
80 /* device private data */
83 struct timer_list mii_timer;
85 struct mii_if_info mii;
89 struct platform_device *dev;
91 struct resource *mem2;
92 struct ax_plat_data *plat;
94 unsigned char running;
95 unsigned char resume_open;
97 u32 reg_offsets[0x20];
100 static inline struct ax_device *to_ax_dev(struct net_device *dev)
102 struct ei_device *ei_local = netdev_priv(dev);
103 return (struct ax_device *)(ei_local+1);
108 * do an initial probe for the card to check wether it exists
112 static int ax_initial_check(struct net_device *dev)
114 struct ei_device *ei_local = netdev_priv(dev);
115 void __iomem *ioaddr = ei_local->mem;
119 reg0 = ei_inb(ioaddr);
123 ei_outb(E8390_NODMA+E8390_PAGE1+E8390_STOP, ioaddr + E8390_CMD);
124 regd = ei_inb(ioaddr + 0x0d);
125 ei_outb(0xff, ioaddr + 0x0d);
126 ei_outb(E8390_NODMA+E8390_PAGE0, ioaddr + E8390_CMD);
127 ei_inb(ioaddr + EN0_COUNTER0); /* Clear the counter by reading. */
128 if (ei_inb(ioaddr + EN0_COUNTER0) != 0) {
129 ei_outb(reg0, ioaddr);
130 ei_outb(regd, ioaddr + 0x0d); /* Restore the old values. */
137 /* Hard reset the card. This used to pause for the same period that a
138 8390 reset command required, but that shouldn't be necessary. */
140 static void ax_reset_8390(struct net_device *dev)
142 struct ei_device *ei_local = netdev_priv(dev);
143 struct ax_device *ax = to_ax_dev(dev);
144 unsigned long reset_start_time = jiffies;
145 void __iomem *addr = (void __iomem *)dev->base_addr;
148 dev_dbg(&ax->dev->dev, "resetting the 8390 t=%ld\n", jiffies);
150 ei_outb(ei_inb(addr + NE_RESET), addr + NE_RESET);
153 ei_status.dmaing = 0;
155 /* This check _should_not_ be necessary, omit eventually. */
156 while ((ei_inb(addr + EN0_ISR) & ENISR_RESET) == 0) {
157 if (jiffies - reset_start_time > 2*HZ/100) {
158 dev_warn(&ax->dev->dev, "%s: %s did not complete.\n",
159 __func__, dev->name);
164 ei_outb(ENISR_RESET, addr + EN0_ISR); /* Ack intr. */
168 static void ax_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
171 struct ei_device *ei_local = netdev_priv(dev);
172 struct ax_device *ax = to_ax_dev(dev);
173 void __iomem *nic_base = ei_local->mem;
175 /* This *shouldn't* happen. If it does, it's the last thing you'll see */
176 if (ei_status.dmaing) {
177 dev_err(&ax->dev->dev, "%s: DMAing conflict in %s "
178 "[DMAstat:%d][irqlock:%d].\n",
180 ei_status.dmaing, ei_status.irqlock);
184 ei_status.dmaing |= 0x01;
185 ei_outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD);
186 ei_outb(sizeof(struct e8390_pkt_hdr), nic_base + EN0_RCNTLO);
187 ei_outb(0, nic_base + EN0_RCNTHI);
188 ei_outb(0, nic_base + EN0_RSARLO); /* On page boundary */
189 ei_outb(ring_page, nic_base + EN0_RSARHI);
190 ei_outb(E8390_RREAD+E8390_START, nic_base + NE_CMD);
192 if (ei_status.word16)
193 readsw(nic_base + NE_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr)>>1);
195 readsb(nic_base + NE_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr));
197 ei_outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */
198 ei_status.dmaing &= ~0x01;
200 le16_to_cpus(&hdr->count);
204 /* Block input and output, similar to the Crynwr packet driver. If you
205 are porting to a new ethercard, look at the packet driver source for hints.
206 The NEx000 doesn't share the on-board packet memory -- you have to put
207 the packet out through the "remote DMA" dataport using ei_outb. */
209 static void ax_block_input(struct net_device *dev, int count,
210 struct sk_buff *skb, int ring_offset)
212 struct ei_device *ei_local = netdev_priv(dev);
213 struct ax_device *ax = to_ax_dev(dev);
214 void __iomem *nic_base = ei_local->mem;
215 char *buf = skb->data;
217 if (ei_status.dmaing) {
218 dev_err(&ax->dev->dev,
219 "%s: DMAing conflict in %s "
220 "[DMAstat:%d][irqlock:%d].\n",
222 ei_status.dmaing, ei_status.irqlock);
226 ei_status.dmaing |= 0x01;
228 ei_outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD);
229 ei_outb(count & 0xff, nic_base + EN0_RCNTLO);
230 ei_outb(count >> 8, nic_base + EN0_RCNTHI);
231 ei_outb(ring_offset & 0xff, nic_base + EN0_RSARLO);
232 ei_outb(ring_offset >> 8, nic_base + EN0_RSARHI);
233 ei_outb(E8390_RREAD+E8390_START, nic_base + NE_CMD);
235 if (ei_status.word16) {
236 readsw(nic_base + NE_DATAPORT, buf, count >> 1);
238 buf[count-1] = ei_inb(nic_base + NE_DATAPORT);
241 readsb(nic_base + NE_DATAPORT, buf, count);
244 ei_status.dmaing &= ~1;
247 static void ax_block_output(struct net_device *dev, int count,
248 const unsigned char *buf, const int start_page)
250 struct ei_device *ei_local = netdev_priv(dev);
251 struct ax_device *ax = to_ax_dev(dev);
252 void __iomem *nic_base = ei_local->mem;
253 unsigned long dma_start;
255 /* Round the count up for word writes. Do we need to do this?
256 What effect will an odd byte count have on the 8390?
257 I should check someday. */
259 if (ei_status.word16 && (count & 0x01))
262 /* This *shouldn't* happen. If it does, it's the last thing you'll see */
263 if (ei_status.dmaing) {
264 dev_err(&ax->dev->dev, "%s: DMAing conflict in %s."
265 "[DMAstat:%d][irqlock:%d]\n",
267 ei_status.dmaing, ei_status.irqlock);
271 ei_status.dmaing |= 0x01;
272 /* We should already be in page 0, but to be safe... */
273 ei_outb(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD);
275 ei_outb(ENISR_RDC, nic_base + EN0_ISR);
277 /* Now the normal output. */
278 ei_outb(count & 0xff, nic_base + EN0_RCNTLO);
279 ei_outb(count >> 8, nic_base + EN0_RCNTHI);
280 ei_outb(0x00, nic_base + EN0_RSARLO);
281 ei_outb(start_page, nic_base + EN0_RSARHI);
283 ei_outb(E8390_RWRITE+E8390_START, nic_base + NE_CMD);
284 if (ei_status.word16) {
285 writesw(nic_base + NE_DATAPORT, buf, count>>1);
287 writesb(nic_base + NE_DATAPORT, buf, count);
292 while ((ei_inb(nic_base + EN0_ISR) & ENISR_RDC) == 0) {
293 if (jiffies - dma_start > 2*HZ/100) { /* 20ms */
294 dev_warn(&ax->dev->dev,
295 "%s: timeout waiting for Tx RDC.\n", dev->name);
297 ax_NS8390_init(dev,1);
302 ei_outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */
303 ei_status.dmaing &= ~0x01;
307 /* definitions for accessing MII/EEPROM interface */
309 #define AX_MEMR EI_SHIFT(0x14)
310 #define AX_MEMR_MDC (1<<0)
311 #define AX_MEMR_MDIR (1<<1)
312 #define AX_MEMR_MDI (1<<2)
313 #define AX_MEMR_MDO (1<<3)
314 #define AX_MEMR_EECS (1<<4)
315 #define AX_MEMR_EEI (1<<5)
316 #define AX_MEMR_EEO (1<<6)
317 #define AX_MEMR_EECLK (1<<7)
321 * write the specified set of bits to the phy
325 ax_mii_ei_outbits(struct net_device *dev, unsigned int bits, int len)
327 struct ei_device *ei_local = (struct ei_device *) netdev_priv(dev);
328 void __iomem *memr_addr = (void __iomem *)dev->base_addr + AX_MEMR;
331 /* clock low, data to output mode */
332 memr = ei_inb(memr_addr);
333 memr &= ~(AX_MEMR_MDC | AX_MEMR_MDIR);
334 ei_outb(memr, memr_addr);
336 for (len--; len >= 0; len--) {
337 if (bits & (1 << len))
340 memr &= ~AX_MEMR_MDO;
342 ei_outb(memr, memr_addr);
346 ei_outb(memr | AX_MEMR_MDC, memr_addr);
350 ei_outb(memr, memr_addr);
353 /* leaves the clock line low, mdir input */
354 memr |= AX_MEMR_MDIR;
355 ei_outb(memr, (void __iomem *)dev->base_addr + AX_MEMR);
360 * read a specified number of bits from the phy
364 ax_phy_ei_inbits(struct net_device *dev, int no)
366 struct ei_device *ei_local = (struct ei_device *) netdev_priv(dev);
367 void __iomem *memr_addr = (void __iomem *)dev->base_addr + AX_MEMR;
369 unsigned int result = 0;
371 /* clock low, data to input mode */
372 memr = ei_inb(memr_addr);
373 memr &= ~AX_MEMR_MDC;
374 memr |= AX_MEMR_MDIR;
375 ei_outb(memr, memr_addr);
377 for (no--; no >= 0; no--) {
378 ei_outb(memr | AX_MEMR_MDC, memr_addr);
382 if (ei_inb(memr_addr) & AX_MEMR_MDI)
385 ei_outb(memr, memr_addr);
393 * use the low level bit shifting routines to send the address
394 * and command to the specified phy
398 ax_phy_issueaddr(struct net_device *dev, int phy_addr, int reg, int opc)
401 pr_debug("%s: dev %p, %04x, %04x, %d\n",
402 __func__, dev, phy_addr, reg, opc);
404 ax_mii_ei_outbits(dev, 0x3f, 6); /* pre-amble */
405 ax_mii_ei_outbits(dev, 1, 2); /* frame-start */
406 ax_mii_ei_outbits(dev, opc, 2); /* op code */
407 ax_mii_ei_outbits(dev, phy_addr, 5); /* phy address */
408 ax_mii_ei_outbits(dev, reg, 5); /* reg address */
412 ax_phy_read(struct net_device *dev, int phy_addr, int reg)
414 struct ei_device *ei_local = (struct ei_device *) netdev_priv(dev);
418 spin_lock_irqsave(&ei_local->page_lock, flags);
420 ax_phy_issueaddr(dev, phy_addr, reg, 2);
422 result = ax_phy_ei_inbits(dev, 17);
425 spin_unlock_irqrestore(&ei_local->page_lock, flags);
428 pr_debug("%s: %04x.%04x => read %04x\n", __func__,
429 phy_addr, reg, result);
435 ax_phy_write(struct net_device *dev, int phy_addr, int reg, int value)
437 struct ei_device *ei = (struct ei_device *) netdev_priv(dev);
438 struct ax_device *ax = to_ax_dev(dev);
441 dev_dbg(&ax->dev->dev, "%s: %p, %04x, %04x %04x\n",
442 __func__, dev, phy_addr, reg, value);
444 spin_lock_irqsave(&ei->page_lock, flags);
446 ax_phy_issueaddr(dev, phy_addr, reg, 1);
447 ax_mii_ei_outbits(dev, 2, 2); /* send TA */
448 ax_mii_ei_outbits(dev, value, 16);
450 spin_unlock_irqrestore(&ei->page_lock, flags);
453 static void ax_mii_expiry(unsigned long data)
455 struct net_device *dev = (struct net_device *)data;
456 struct ax_device *ax = to_ax_dev(dev);
459 spin_lock_irqsave(&ax->mii_lock, flags);
460 mii_check_media(&ax->mii, netif_msg_link(ax), 0);
461 spin_unlock_irqrestore(&ax->mii_lock, flags);
464 ax->mii_timer.expires = jiffies + HZ*2;
465 add_timer(&ax->mii_timer);
469 static int ax_open(struct net_device *dev)
471 struct ax_device *ax = to_ax_dev(dev);
472 struct ei_device *ei_local = netdev_priv(dev);
475 dev_dbg(&ax->dev->dev, "%s: open\n", dev->name);
477 ret = request_irq(dev->irq, ax_ei_interrupt, 0, dev->name, dev);
481 ret = ax_ei_open(dev);
485 /* turn the phy on (if turned off) */
487 ei_outb(ax->plat->gpoc_val, ei_local->mem + EI_SHIFT(0x17));
490 /* start the MII timer */
492 init_timer(&ax->mii_timer);
494 ax->mii_timer.expires = jiffies+1;
495 ax->mii_timer.data = (unsigned long) dev;
496 ax->mii_timer.function = ax_mii_expiry;
498 add_timer(&ax->mii_timer);
503 static int ax_close(struct net_device *dev)
505 struct ax_device *ax = to_ax_dev(dev);
506 struct ei_device *ei_local = netdev_priv(dev);
508 dev_dbg(&ax->dev->dev, "%s: close\n", dev->name);
510 /* turn the phy off */
512 ei_outb(ax->plat->gpoc_val | (1<<6),
513 ei_local->mem + EI_SHIFT(0x17));
518 del_timer_sync(&ax->mii_timer);
521 free_irq(dev->irq, dev);
525 static int ax_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
527 struct ax_device *ax = to_ax_dev(dev);
531 if (!netif_running(dev))
534 spin_lock_irqsave(&ax->mii_lock, flags);
535 rc = generic_mii_ioctl(&ax->mii, if_mii(req), cmd, NULL);
536 spin_unlock_irqrestore(&ax->mii_lock, flags);
543 static void ax_get_drvinfo(struct net_device *dev,
544 struct ethtool_drvinfo *info)
546 struct ax_device *ax = to_ax_dev(dev);
548 strcpy(info->driver, DRV_NAME);
549 strcpy(info->version, DRV_VERSION);
550 strcpy(info->bus_info, ax->dev->name);
553 static int ax_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
555 struct ax_device *ax = to_ax_dev(dev);
558 spin_lock_irqsave(&ax->mii_lock, flags);
559 mii_ethtool_gset(&ax->mii, cmd);
560 spin_unlock_irqrestore(&ax->mii_lock, flags);
565 static int ax_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
567 struct ax_device *ax = to_ax_dev(dev);
571 spin_lock_irqsave(&ax->mii_lock, flags);
572 rc = mii_ethtool_sset(&ax->mii, cmd);
573 spin_unlock_irqrestore(&ax->mii_lock, flags);
578 static int ax_nway_reset(struct net_device *dev)
580 struct ax_device *ax = to_ax_dev(dev);
581 return mii_nway_restart(&ax->mii);
584 static u32 ax_get_link(struct net_device *dev)
586 struct ax_device *ax = to_ax_dev(dev);
587 return mii_link_ok(&ax->mii);
590 static const struct ethtool_ops ax_ethtool_ops = {
591 .get_drvinfo = ax_get_drvinfo,
592 .get_settings = ax_get_settings,
593 .set_settings = ax_set_settings,
594 .nway_reset = ax_nway_reset,
595 .get_link = ax_get_link,
598 #ifdef CONFIG_AX88796_93CX6
599 static void ax_eeprom_register_read(struct eeprom_93cx6 *eeprom)
601 struct ei_device *ei_local = eeprom->data;
602 u8 reg = ei_inb(ei_local->mem + AX_MEMR);
604 eeprom->reg_data_in = reg & AX_MEMR_EEI;
605 eeprom->reg_data_out = reg & AX_MEMR_EEO; /* Input pin */
606 eeprom->reg_data_clock = reg & AX_MEMR_EECLK;
607 eeprom->reg_chip_select = reg & AX_MEMR_EECS;
610 static void ax_eeprom_register_write(struct eeprom_93cx6 *eeprom)
612 struct ei_device *ei_local = eeprom->data;
613 u8 reg = ei_inb(ei_local->mem + AX_MEMR);
615 reg &= ~(AX_MEMR_EEI | AX_MEMR_EECLK | AX_MEMR_EECS);
617 if (eeprom->reg_data_in)
619 if (eeprom->reg_data_clock)
620 reg |= AX_MEMR_EECLK;
621 if (eeprom->reg_chip_select)
624 ei_outb(reg, ei_local->mem + AX_MEMR);
629 static const struct net_device_ops ax_netdev_ops = {
631 .ndo_stop = ax_close,
632 .ndo_do_ioctl = ax_ioctl,
634 .ndo_start_xmit = ax_ei_start_xmit,
635 .ndo_tx_timeout = ax_ei_tx_timeout,
636 .ndo_get_stats = ax_ei_get_stats,
637 .ndo_set_multicast_list = ax_ei_set_multicast_list,
638 .ndo_validate_addr = eth_validate_addr,
639 .ndo_set_mac_address = eth_mac_addr,
640 .ndo_change_mtu = eth_change_mtu,
641 #ifdef CONFIG_NET_POLL_CONTROLLER
642 .ndo_poll_controller = ax_ei_poll,
648 static void ax_initial_setup(struct net_device *dev, struct ei_device *ei_local)
650 void __iomem *ioaddr = ei_local->mem;
651 struct ax_device *ax = to_ax_dev(dev);
654 ei_outb(E8390_NODMA+E8390_PAGE0+E8390_STOP, ioaddr + E8390_CMD);
656 /* set to byte access */
657 ei_outb(ax->plat->dcr_val & ~1, ioaddr + EN0_DCFG);
658 ei_outb(ax->plat->gpoc_val, ioaddr + EI_SHIFT(0x17));
663 * initialise the specified device, taking care to note the MAC
664 * address it may already have (if configured), ensure
665 * the device is ready to be used by lib8390.c and registerd with
669 static int ax_init_dev(struct net_device *dev, int first_init)
671 struct ei_device *ei_local = netdev_priv(dev);
672 struct ax_device *ax = to_ax_dev(dev);
673 void __iomem *ioaddr = ei_local->mem;
674 unsigned int start_page;
675 unsigned int stop_page;
679 ret = ax_initial_check(dev);
683 /* setup goes here */
685 ax_initial_setup(dev, ei_local);
687 /* read the mac from the card prom if we need it */
689 if (first_init && ax->plat->flags & AXFLG_HAS_EEPROM) {
690 unsigned char SA_prom[32];
692 for(i = 0; i < sizeof(SA_prom); i+=2) {
693 SA_prom[i] = ei_inb(ioaddr + NE_DATAPORT);
694 SA_prom[i+1] = ei_inb(ioaddr + NE_DATAPORT);
697 if (ax->plat->wordlength == 2)
698 for (i = 0; i < 16; i++)
699 SA_prom[i] = SA_prom[i+i];
701 memcpy(dev->dev_addr, SA_prom, 6);
704 #ifdef CONFIG_AX88796_93CX6
705 if (first_init && ax->plat->flags & AXFLG_HAS_93CX6) {
706 unsigned char mac_addr[6];
707 struct eeprom_93cx6 eeprom;
709 eeprom.data = ei_local;
710 eeprom.register_read = ax_eeprom_register_read;
711 eeprom.register_write = ax_eeprom_register_write;
712 eeprom.width = PCI_EEPROM_WIDTH_93C56;
714 eeprom_93cx6_multiread(&eeprom, 0,
715 (__le16 __force *)mac_addr,
716 sizeof(mac_addr) >> 1);
718 memcpy(dev->dev_addr, mac_addr, 6);
721 if (ax->plat->wordlength == 2) {
722 /* We must set the 8390 for word mode. */
723 ei_outb(ax->plat->dcr_val, ei_local->mem + EN0_DCFG);
724 start_page = NESM_START_PG;
725 stop_page = NESM_STOP_PG;
727 start_page = NE1SM_START_PG;
728 stop_page = NE1SM_STOP_PG;
731 /* load the mac-address from the device if this is the
732 * first time we've initialised */
734 if (first_init && ax->plat->flags & AXFLG_MAC_FROMDEV) {
735 ei_outb(E8390_NODMA + E8390_PAGE1 + E8390_STOP,
736 ei_local->mem + E8390_CMD); /* 0x61 */
738 for (i = 0 ; i < ETHER_ADDR_LEN ; i++)
739 dev->dev_addr[i] = ei_inb(ioaddr + EN1_PHYS_SHIFT(i));
744 ei_status.name = "AX88796";
745 ei_status.tx_start_page = start_page;
746 ei_status.stop_page = stop_page;
747 ei_status.word16 = (ax->plat->wordlength == 2);
748 ei_status.rx_start_page = start_page + TX_PAGES;
750 #ifdef PACKETBUF_MEMSIZE
751 /* Allow the packet buffer size to be overridden by know-it-alls. */
752 ei_status.stop_page = ei_status.tx_start_page + PACKETBUF_MEMSIZE;
755 ei_status.reset_8390 = &ax_reset_8390;
756 ei_status.block_input = &ax_block_input;
757 ei_status.block_output = &ax_block_output;
758 ei_status.get_8390_hdr = &ax_get_8390_hdr;
761 dev->netdev_ops = &ax_netdev_ops;
762 dev->ethtool_ops = &ax_ethtool_ops;
764 ax->msg_enable = NETIF_MSG_LINK;
765 ax->mii.phy_id_mask = 0x1f;
766 ax->mii.reg_num_mask = 0x1f;
767 ax->mii.phy_id = 0x10; /* onboard phy */
768 ax->mii.force_media = 0;
769 ax->mii.full_duplex = 0;
770 ax->mii.mdio_read = ax_phy_read;
771 ax->mii.mdio_write = ax_phy_write;
774 ax_NS8390_init(dev, 0);
777 dev_info(&ax->dev->dev, "%dbit, irq %d, %lx, MAC: %pM\n",
778 ei_status.word16 ? 16:8, dev->irq, dev->base_addr,
781 ret = register_netdev(dev);
789 free_irq(dev->irq, dev);
794 static int ax_remove(struct platform_device *_dev)
796 struct net_device *dev = platform_get_drvdata(_dev);
797 struct ax_device *ax;
801 unregister_netdev(dev);
802 free_irq(dev->irq, dev);
804 iounmap(ei_status.mem);
805 release_resource(ax->mem);
810 release_resource(ax->mem2);
821 * This is the entry point when the platform device system uses to
822 * notify us of a new device to attach to. Allocate memory, find
823 * the resources and information passed, and map the necessary registers.
826 static int ax_probe(struct platform_device *pdev)
828 struct net_device *dev;
829 struct ax_device *ax;
830 struct resource *res;
834 dev = ax__alloc_ei_netdev(sizeof(struct ax_device));
838 /* ok, let's setup our device */
841 memset(ax, 0, sizeof(struct ax_device));
843 spin_lock_init(&ax->mii_lock);
846 ax->plat = pdev->dev.platform_data;
847 platform_set_drvdata(pdev, dev);
849 ei_status.rxcr_base = ax->plat->rcr_val;
851 /* find the platform resources */
853 ret = platform_get_irq(pdev, 0);
855 dev_err(&pdev->dev, "no IRQ specified\n");
860 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
862 dev_err(&pdev->dev, "no MEM specified\n");
867 size = (res->end - res->start) + 1;
869 /* setup the register offsets from either the platform data
870 * or by using the size of the resource provided */
872 if (ax->plat->reg_offsets)
873 ei_status.reg_offset = ax->plat->reg_offsets;
875 ei_status.reg_offset = ax->reg_offsets;
876 for (ret = 0; ret < 0x18; ret++)
877 ax->reg_offsets[ret] = (size / 0x18) * ret;
880 ax->mem = request_mem_region(res->start, size, pdev->name);
881 if (ax->mem == NULL) {
882 dev_err(&pdev->dev, "cannot reserve registers\n");
887 ei_status.mem = ioremap(res->start, size);
888 dev->base_addr = (unsigned long)ei_status.mem;
890 if (ei_status.mem == NULL) {
891 dev_err(&pdev->dev, "Cannot ioremap area (%08llx,%08llx)\n",
892 (unsigned long long)res->start,
893 (unsigned long long)res->end);
899 /* look for reset area */
901 res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
903 if (!ax->plat->reg_offsets) {
904 for (ret = 0; ret < 0x20; ret++)
905 ax->reg_offsets[ret] = (size / 0x20) * ret;
910 size = (res->end - res->start) + 1;
912 ax->mem2 = request_mem_region(res->start, size, pdev->name);
913 if (ax->mem == NULL) {
914 dev_err(&pdev->dev, "cannot reserve registers\n");
919 ax->map2 = ioremap(res->start, size);
920 if (ax->map2 == NULL) {
921 dev_err(&pdev->dev, "cannot map reset register\n");
926 ei_status.reg_offset[0x1f] = ax->map2 - ei_status.mem;
929 /* got resources, now initialise and register device */
931 ret = ax_init_dev(dev, 1);
935 if (ax->map2 == NULL)
941 release_resource(ax->mem2);
945 iounmap(ei_status.mem);
948 release_resource(ax->mem);
957 /* suspend and resume */
960 static int ax_suspend(struct platform_device *dev, pm_message_t state)
962 struct net_device *ndev = platform_get_drvdata(dev);
963 struct ax_device *ax = to_ax_dev(ndev);
965 ax->resume_open = ax->running;
967 netif_device_detach(ndev);
973 static int ax_resume(struct platform_device *pdev)
975 struct net_device *ndev = platform_get_drvdata(pdev);
976 struct ax_device *ax = to_ax_dev(ndev);
978 ax_initial_setup(ndev, netdev_priv(ndev));
979 ax_NS8390_init(ndev, ax->resume_open);
980 netif_device_attach(ndev);
989 #define ax_suspend NULL
990 #define ax_resume NULL
993 static struct platform_driver axdrv = {
996 .owner = THIS_MODULE,
1000 .suspend = ax_suspend,
1001 .resume = ax_resume,
1004 static int __init axdrv_init(void)
1006 return platform_driver_register(&axdrv);
1009 static void __exit axdrv_exit(void)
1011 platform_driver_unregister(&axdrv);
1014 module_init(axdrv_init);
1015 module_exit(axdrv_exit);
1017 MODULE_DESCRIPTION("AX88796 10/100 Ethernet platform driver");
1018 MODULE_AUTHOR("Ben Dooks, <ben@simtec.co.uk>");
1019 MODULE_LICENSE("GPL v2");
1020 MODULE_ALIAS("platform:ax88796");