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>
21 #include <linux/platform_device.h>
22 #include <linux/delay.h>
23 #include <linux/timer.h>
24 #include <linux/netdevice.h>
25 #include <linux/etherdevice.h>
26 #include <linux/ethtool.h>
27 #include <linux/mii.h>
28 #include <linux/eeprom_93cx6.h>
29 #include <linux/slab.h>
31 #include <net/ax88796.h>
33 #include <asm/system.h>
37 /* Rename the lib8390.c functions to show that they are in this driver */
38 #define __ei_open ax_ei_open
39 #define __ei_close ax_ei_close
40 #define __ei_poll ax_ei_poll
41 #define __ei_start_xmit ax_ei_start_xmit
42 #define __ei_tx_timeout ax_ei_tx_timeout
43 #define __ei_get_stats ax_ei_get_stats
44 #define __ei_set_multicast_list ax_ei_set_multicast_list
45 #define __ei_interrupt ax_ei_interrupt
46 #define ____alloc_ei_netdev ax__alloc_ei_netdev
47 #define __NS8390_init ax_NS8390_init
49 /* force unsigned long back to 'void __iomem *' */
50 #define ax_convert_addr(_a) ((void __force __iomem *)(_a))
52 #define ei_inb(_a) readb(ax_convert_addr(_a))
53 #define ei_outb(_v, _a) writeb(_v, ax_convert_addr(_a))
55 #define ei_inb_p(_a) ei_inb(_a)
56 #define ei_outb_p(_v, _a) ei_outb(_v, _a)
58 /* define EI_SHIFT() to take into account our register offsets */
59 #define EI_SHIFT(x) (ei_local->reg_offset[(x)])
61 /* Ensure we have our RCR base value */
62 #define AX88796_PLATFORM
64 static unsigned char version[] = "ax88796.c: Copyright 2005,2007 Simtec Electronics\n";
68 #define DRV_NAME "ax88796"
69 #define DRV_VERSION "1.00"
72 #define NE_CMD EI_SHIFT(0x00)
73 #define NE_RESET EI_SHIFT(0x1f)
74 #define NE_DATAPORT EI_SHIFT(0x10)
76 #define NE1SM_START_PG 0x20 /* First page of TX buffer */
77 #define NE1SM_STOP_PG 0x40 /* Last page +1 of RX ring */
78 #define NESM_START_PG 0x40 /* First page of TX buffer */
79 #define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */
81 /* device private data */
84 struct timer_list mii_timer;
86 struct mii_if_info mii;
90 struct platform_device *dev;
92 struct resource *mem2;
93 struct ax_plat_data *plat;
95 unsigned char running;
96 unsigned char resume_open;
97 unsigned int irqflags;
99 u32 reg_offsets[0x20];
102 static inline struct ax_device *to_ax_dev(struct net_device *dev)
104 struct ei_device *ei_local = netdev_priv(dev);
105 return (struct ax_device *)(ei_local + 1);
111 * do an initial probe for the card to check wether it exists
114 static int ax_initial_check(struct net_device *dev)
116 struct ei_device *ei_local = netdev_priv(dev);
117 void __iomem *ioaddr = ei_local->mem;
121 reg0 = ei_inb(ioaddr);
125 ei_outb(E8390_NODMA + E8390_PAGE1 + E8390_STOP, ioaddr + E8390_CMD);
126 regd = ei_inb(ioaddr + 0x0d);
127 ei_outb(0xff, ioaddr + 0x0d);
128 ei_outb(E8390_NODMA + E8390_PAGE0, ioaddr + E8390_CMD);
129 ei_inb(ioaddr + EN0_COUNTER0); /* Clear the counter by reading. */
130 if (ei_inb(ioaddr + EN0_COUNTER0) != 0) {
131 ei_outb(reg0, ioaddr);
132 ei_outb(regd, ioaddr + 0x0d); /* Restore the old values. */
140 * Hard reset the card. This used to pause for the same period that a
141 * 8390 reset command required, but that shouldn't be necessary.
143 static void ax_reset_8390(struct net_device *dev)
145 struct ei_device *ei_local = netdev_priv(dev);
146 struct ax_device *ax = to_ax_dev(dev);
147 unsigned long reset_start_time = jiffies;
148 void __iomem *addr = (void __iomem *)dev->base_addr;
151 dev_dbg(&ax->dev->dev, "resetting the 8390 t=%ld\n", jiffies);
153 ei_outb(ei_inb(addr + NE_RESET), addr + NE_RESET);
156 ei_local->dmaing = 0;
158 /* This check _should_not_ be necessary, omit eventually. */
159 while ((ei_inb(addr + EN0_ISR) & ENISR_RESET) == 0) {
160 if (jiffies - reset_start_time > 2 * HZ / 100) {
161 dev_warn(&ax->dev->dev, "%s: %s did not complete.\n",
162 __func__, dev->name);
167 ei_outb(ENISR_RESET, addr + EN0_ISR); /* Ack intr. */
171 static void ax_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
174 struct ei_device *ei_local = netdev_priv(dev);
175 struct ax_device *ax = to_ax_dev(dev);
176 void __iomem *nic_base = ei_local->mem;
178 /* This *shouldn't* happen. If it does, it's the last thing you'll see */
179 if (ei_local->dmaing) {
180 dev_err(&ax->dev->dev, "%s: DMAing conflict in %s "
181 "[DMAstat:%d][irqlock:%d].\n",
183 ei_local->dmaing, ei_local->irqlock);
187 ei_local->dmaing |= 0x01;
188 ei_outb(E8390_NODMA + E8390_PAGE0 + E8390_START, nic_base + NE_CMD);
189 ei_outb(sizeof(struct e8390_pkt_hdr), nic_base + EN0_RCNTLO);
190 ei_outb(0, nic_base + EN0_RCNTHI);
191 ei_outb(0, nic_base + EN0_RSARLO); /* On page boundary */
192 ei_outb(ring_page, nic_base + EN0_RSARHI);
193 ei_outb(E8390_RREAD+E8390_START, nic_base + NE_CMD);
195 if (ei_local->word16)
196 readsw(nic_base + NE_DATAPORT, hdr,
197 sizeof(struct e8390_pkt_hdr) >> 1);
199 readsb(nic_base + NE_DATAPORT, hdr,
200 sizeof(struct e8390_pkt_hdr));
202 ei_outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */
203 ei_local->dmaing &= ~0x01;
205 le16_to_cpus(&hdr->count);
210 * Block input and output, similar to the Crynwr packet driver. If
211 * you are porting to a new ethercard, look at the packet driver
212 * source for hints. The NEx000 doesn't share the on-board packet
213 * memory -- you have to put the packet out through the "remote DMA"
214 * dataport using ei_outb.
216 static void ax_block_input(struct net_device *dev, int count,
217 struct sk_buff *skb, int ring_offset)
219 struct ei_device *ei_local = netdev_priv(dev);
220 struct ax_device *ax = to_ax_dev(dev);
221 void __iomem *nic_base = ei_local->mem;
222 char *buf = skb->data;
224 if (ei_local->dmaing) {
225 dev_err(&ax->dev->dev,
226 "%s: DMAing conflict in %s "
227 "[DMAstat:%d][irqlock:%d].\n",
229 ei_local->dmaing, ei_local->irqlock);
233 ei_local->dmaing |= 0x01;
235 ei_outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base + NE_CMD);
236 ei_outb(count & 0xff, nic_base + EN0_RCNTLO);
237 ei_outb(count >> 8, nic_base + EN0_RCNTHI);
238 ei_outb(ring_offset & 0xff, nic_base + EN0_RSARLO);
239 ei_outb(ring_offset >> 8, nic_base + EN0_RSARHI);
240 ei_outb(E8390_RREAD+E8390_START, nic_base + NE_CMD);
242 if (ei_local->word16) {
243 readsw(nic_base + NE_DATAPORT, buf, count >> 1);
245 buf[count-1] = ei_inb(nic_base + NE_DATAPORT);
248 readsb(nic_base + NE_DATAPORT, buf, count);
251 ei_local->dmaing &= ~1;
254 static void ax_block_output(struct net_device *dev, int count,
255 const unsigned char *buf, const int start_page)
257 struct ei_device *ei_local = netdev_priv(dev);
258 struct ax_device *ax = to_ax_dev(dev);
259 void __iomem *nic_base = ei_local->mem;
260 unsigned long dma_start;
263 * Round the count up for word writes. Do we need to do this?
264 * What effect will an odd byte count have on the 8390? I
265 * should check someday.
267 if (ei_local->word16 && (count & 0x01))
270 /* This *shouldn't* happen. If it does, it's the last thing you'll see */
271 if (ei_local->dmaing) {
272 dev_err(&ax->dev->dev, "%s: DMAing conflict in %s."
273 "[DMAstat:%d][irqlock:%d]\n",
275 ei_local->dmaing, ei_local->irqlock);
279 ei_local->dmaing |= 0x01;
280 /* We should already be in page 0, but to be safe... */
281 ei_outb(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD);
283 ei_outb(ENISR_RDC, nic_base + EN0_ISR);
285 /* Now the normal output. */
286 ei_outb(count & 0xff, nic_base + EN0_RCNTLO);
287 ei_outb(count >> 8, nic_base + EN0_RCNTHI);
288 ei_outb(0x00, nic_base + EN0_RSARLO);
289 ei_outb(start_page, nic_base + EN0_RSARHI);
291 ei_outb(E8390_RWRITE+E8390_START, nic_base + NE_CMD);
292 if (ei_local->word16)
293 writesw(nic_base + NE_DATAPORT, buf, count >> 1);
295 writesb(nic_base + NE_DATAPORT, buf, count);
299 while ((ei_inb(nic_base + EN0_ISR) & ENISR_RDC) == 0) {
300 if (jiffies - dma_start > 2 * HZ / 100) { /* 20ms */
301 dev_warn(&ax->dev->dev,
302 "%s: timeout waiting for Tx RDC.\n", dev->name);
304 ax_NS8390_init(dev, 1);
309 ei_outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */
310 ei_local->dmaing &= ~0x01;
313 /* definitions for accessing MII/EEPROM interface */
315 #define AX_MEMR EI_SHIFT(0x14)
316 #define AX_MEMR_MDC BIT(0)
317 #define AX_MEMR_MDIR BIT(1)
318 #define AX_MEMR_MDI BIT(2)
319 #define AX_MEMR_MDO BIT(3)
320 #define AX_MEMR_EECS BIT(4)
321 #define AX_MEMR_EEI BIT(5)
322 #define AX_MEMR_EEO BIT(6)
323 #define AX_MEMR_EECLK BIT(7)
328 * write the specified set of bits to the phy
331 ax_mii_ei_outbits(struct net_device *dev, unsigned int bits, int len)
333 struct ei_device *ei_local = netdev_priv(dev);
334 void __iomem *memr_addr = (void __iomem *)dev->base_addr + AX_MEMR;
337 /* clock low, data to output mode */
338 memr = ei_inb(memr_addr);
339 memr &= ~(AX_MEMR_MDC | AX_MEMR_MDIR);
340 ei_outb(memr, memr_addr);
342 for (len--; len >= 0; len--) {
343 if (bits & (1 << len))
346 memr &= ~AX_MEMR_MDO;
348 ei_outb(memr, memr_addr);
352 ei_outb(memr | AX_MEMR_MDC, memr_addr);
356 ei_outb(memr, memr_addr);
359 /* leaves the clock line low, mdir input */
360 memr |= AX_MEMR_MDIR;
361 ei_outb(memr, (void __iomem *)dev->base_addr + AX_MEMR);
367 * read a specified number of bits from the phy
370 ax_phy_ei_inbits(struct net_device *dev, int no)
372 struct ei_device *ei_local = netdev_priv(dev);
373 void __iomem *memr_addr = (void __iomem *)dev->base_addr + AX_MEMR;
375 unsigned int result = 0;
377 /* clock low, data to input mode */
378 memr = ei_inb(memr_addr);
379 memr &= ~AX_MEMR_MDC;
380 memr |= AX_MEMR_MDIR;
381 ei_outb(memr, memr_addr);
383 for (no--; no >= 0; no--) {
384 ei_outb(memr | AX_MEMR_MDC, memr_addr);
388 if (ei_inb(memr_addr) & AX_MEMR_MDI)
391 ei_outb(memr, memr_addr);
400 * use the low level bit shifting routines to send the address
401 * and command to the specified phy
404 ax_phy_issueaddr(struct net_device *dev, int phy_addr, int reg, int opc)
407 pr_debug("%s: dev %p, %04x, %04x, %d\n",
408 __func__, dev, phy_addr, reg, opc);
410 ax_mii_ei_outbits(dev, 0x3f, 6); /* pre-amble */
411 ax_mii_ei_outbits(dev, 1, 2); /* frame-start */
412 ax_mii_ei_outbits(dev, opc, 2); /* op code */
413 ax_mii_ei_outbits(dev, phy_addr, 5); /* phy address */
414 ax_mii_ei_outbits(dev, reg, 5); /* reg address */
418 ax_phy_read(struct net_device *dev, int phy_addr, int reg)
420 struct ei_device *ei_local = netdev_priv(dev);
424 spin_lock_irqsave(&ei_local->page_lock, flags);
426 ax_phy_issueaddr(dev, phy_addr, reg, 2);
428 result = ax_phy_ei_inbits(dev, 17);
429 result &= ~(3 << 16);
431 spin_unlock_irqrestore(&ei_local->page_lock, flags);
434 pr_debug("%s: %04x.%04x => read %04x\n", __func__,
435 phy_addr, reg, result);
441 ax_phy_write(struct net_device *dev, int phy_addr, int reg, int value)
443 struct ei_device *ei = netdev_priv(dev);
444 struct ax_device *ax = to_ax_dev(dev);
447 dev_dbg(&ax->dev->dev, "%s: %p, %04x, %04x %04x\n",
448 __func__, dev, phy_addr, reg, value);
450 spin_lock_irqsave(&ei->page_lock, flags);
452 ax_phy_issueaddr(dev, phy_addr, reg, 1);
453 ax_mii_ei_outbits(dev, 2, 2); /* send TA */
454 ax_mii_ei_outbits(dev, value, 16);
456 spin_unlock_irqrestore(&ei->page_lock, flags);
459 static void ax_mii_expiry(unsigned long data)
461 struct net_device *dev = (struct net_device *)data;
462 struct ax_device *ax = to_ax_dev(dev);
465 spin_lock_irqsave(&ax->mii_lock, flags);
466 mii_check_media(&ax->mii, netif_msg_link(ax), 0);
467 spin_unlock_irqrestore(&ax->mii_lock, flags);
470 ax->mii_timer.expires = jiffies + HZ*2;
471 add_timer(&ax->mii_timer);
475 static int ax_open(struct net_device *dev)
477 struct ax_device *ax = to_ax_dev(dev);
478 struct ei_device *ei_local = netdev_priv(dev);
481 dev_dbg(&ax->dev->dev, "%s: open\n", dev->name);
483 ret = request_irq(dev->irq, ax_ei_interrupt, ax->irqflags,
488 ret = ax_ei_open(dev);
490 free_irq(dev->irq, dev);
494 /* turn the phy on (if turned off) */
496 ei_outb(ax->plat->gpoc_val, ei_local->mem + EI_SHIFT(0x17));
499 /* start the MII timer */
501 init_timer(&ax->mii_timer);
503 ax->mii_timer.expires = jiffies + 1;
504 ax->mii_timer.data = (unsigned long) dev;
505 ax->mii_timer.function = ax_mii_expiry;
507 add_timer(&ax->mii_timer);
512 static int ax_close(struct net_device *dev)
514 struct ax_device *ax = to_ax_dev(dev);
515 struct ei_device *ei_local = netdev_priv(dev);
517 dev_dbg(&ax->dev->dev, "%s: close\n", dev->name);
519 /* turn the phy off */
521 ei_outb(ax->plat->gpoc_val | (1 << 6),
522 ei_local->mem + EI_SHIFT(0x17));
527 del_timer_sync(&ax->mii_timer);
530 free_irq(dev->irq, dev);
534 static int ax_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
536 struct ax_device *ax = to_ax_dev(dev);
540 if (!netif_running(dev))
543 spin_lock_irqsave(&ax->mii_lock, flags);
544 rc = generic_mii_ioctl(&ax->mii, if_mii(req), cmd, NULL);
545 spin_unlock_irqrestore(&ax->mii_lock, flags);
552 static void ax_get_drvinfo(struct net_device *dev,
553 struct ethtool_drvinfo *info)
555 struct ax_device *ax = to_ax_dev(dev);
557 strcpy(info->driver, DRV_NAME);
558 strcpy(info->version, DRV_VERSION);
559 strcpy(info->bus_info, ax->dev->name);
562 static int ax_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
564 struct ax_device *ax = to_ax_dev(dev);
567 spin_lock_irqsave(&ax->mii_lock, flags);
568 mii_ethtool_gset(&ax->mii, cmd);
569 spin_unlock_irqrestore(&ax->mii_lock, flags);
574 static int ax_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
576 struct ax_device *ax = to_ax_dev(dev);
580 spin_lock_irqsave(&ax->mii_lock, flags);
581 rc = mii_ethtool_sset(&ax->mii, cmd);
582 spin_unlock_irqrestore(&ax->mii_lock, flags);
587 static int ax_nway_reset(struct net_device *dev)
589 struct ax_device *ax = to_ax_dev(dev);
590 return mii_nway_restart(&ax->mii);
593 static u32 ax_get_link(struct net_device *dev)
595 struct ax_device *ax = to_ax_dev(dev);
596 return mii_link_ok(&ax->mii);
599 static const struct ethtool_ops ax_ethtool_ops = {
600 .get_drvinfo = ax_get_drvinfo,
601 .get_settings = ax_get_settings,
602 .set_settings = ax_set_settings,
603 .nway_reset = ax_nway_reset,
604 .get_link = ax_get_link,
607 #ifdef CONFIG_AX88796_93CX6
608 static void ax_eeprom_register_read(struct eeprom_93cx6 *eeprom)
610 struct ei_device *ei_local = eeprom->data;
611 u8 reg = ei_inb(ei_local->mem + AX_MEMR);
613 eeprom->reg_data_in = reg & AX_MEMR_EEI;
614 eeprom->reg_data_out = reg & AX_MEMR_EEO; /* Input pin */
615 eeprom->reg_data_clock = reg & AX_MEMR_EECLK;
616 eeprom->reg_chip_select = reg & AX_MEMR_EECS;
619 static void ax_eeprom_register_write(struct eeprom_93cx6 *eeprom)
621 struct ei_device *ei_local = eeprom->data;
622 u8 reg = ei_inb(ei_local->mem + AX_MEMR);
624 reg &= ~(AX_MEMR_EEI | AX_MEMR_EECLK | AX_MEMR_EECS);
626 if (eeprom->reg_data_in)
628 if (eeprom->reg_data_clock)
629 reg |= AX_MEMR_EECLK;
630 if (eeprom->reg_chip_select)
633 ei_outb(reg, ei_local->mem + AX_MEMR);
638 static const struct net_device_ops ax_netdev_ops = {
640 .ndo_stop = ax_close,
641 .ndo_do_ioctl = ax_ioctl,
643 .ndo_start_xmit = ax_ei_start_xmit,
644 .ndo_tx_timeout = ax_ei_tx_timeout,
645 .ndo_get_stats = ax_ei_get_stats,
646 .ndo_set_multicast_list = ax_ei_set_multicast_list,
647 .ndo_validate_addr = eth_validate_addr,
648 .ndo_set_mac_address = eth_mac_addr,
649 .ndo_change_mtu = eth_change_mtu,
650 #ifdef CONFIG_NET_POLL_CONTROLLER
651 .ndo_poll_controller = ax_ei_poll,
657 static void ax_initial_setup(struct net_device *dev, struct ei_device *ei_local)
659 void __iomem *ioaddr = ei_local->mem;
660 struct ax_device *ax = to_ax_dev(dev);
663 ei_outb(E8390_NODMA + E8390_PAGE0 + E8390_STOP, ioaddr + E8390_CMD);
665 /* set to byte access */
666 ei_outb(ax->plat->dcr_val & ~1, ioaddr + EN0_DCFG);
667 ei_outb(ax->plat->gpoc_val, ioaddr + EI_SHIFT(0x17));
673 * initialise the specified device, taking care to note the MAC
674 * address it may already have (if configured), ensure
675 * the device is ready to be used by lib8390.c and registerd with
678 static int ax_init_dev(struct net_device *dev)
680 struct ei_device *ei_local = netdev_priv(dev);
681 struct ax_device *ax = to_ax_dev(dev);
682 void __iomem *ioaddr = ei_local->mem;
683 unsigned int start_page;
684 unsigned int stop_page;
688 ret = ax_initial_check(dev);
692 /* setup goes here */
694 ax_initial_setup(dev, ei_local);
696 /* read the mac from the card prom if we need it */
698 if (ax->plat->flags & AXFLG_HAS_EEPROM) {
699 unsigned char SA_prom[32];
701 for (i = 0; i < sizeof(SA_prom); i += 2) {
702 SA_prom[i] = ei_inb(ioaddr + NE_DATAPORT);
703 SA_prom[i + 1] = ei_inb(ioaddr + NE_DATAPORT);
706 if (ax->plat->wordlength == 2)
707 for (i = 0; i < 16; i++)
708 SA_prom[i] = SA_prom[i+i];
710 memcpy(dev->dev_addr, SA_prom, 6);
713 #ifdef CONFIG_AX88796_93CX6
714 if (ax->plat->flags & AXFLG_HAS_93CX6) {
715 unsigned char mac_addr[6];
716 struct eeprom_93cx6 eeprom;
718 eeprom.data = ei_local;
719 eeprom.register_read = ax_eeprom_register_read;
720 eeprom.register_write = ax_eeprom_register_write;
721 eeprom.width = PCI_EEPROM_WIDTH_93C56;
723 eeprom_93cx6_multiread(&eeprom, 0,
724 (__le16 __force *)mac_addr,
725 sizeof(mac_addr) >> 1);
727 memcpy(dev->dev_addr, mac_addr, 6);
730 if (ax->plat->wordlength == 2) {
731 /* We must set the 8390 for word mode. */
732 ei_outb(ax->plat->dcr_val, ei_local->mem + EN0_DCFG);
733 start_page = NESM_START_PG;
734 stop_page = NESM_STOP_PG;
736 start_page = NE1SM_START_PG;
737 stop_page = NE1SM_STOP_PG;
740 /* load the mac-address from the device */
741 if (ax->plat->flags & AXFLG_MAC_FROMDEV) {
742 ei_outb(E8390_NODMA + E8390_PAGE1 + E8390_STOP,
743 ei_local->mem + E8390_CMD); /* 0x61 */
744 for (i = 0; i < ETHER_ADDR_LEN; i++)
746 ei_inb(ioaddr + EN1_PHYS_SHIFT(i));
749 if ((ax->plat->flags & AXFLG_MAC_FROMPLATFORM) &&
751 memcpy(dev->dev_addr, ax->plat->mac_addr,
756 ei_local->name = "AX88796";
757 ei_local->tx_start_page = start_page;
758 ei_local->stop_page = stop_page;
759 ei_local->word16 = (ax->plat->wordlength == 2);
760 ei_local->rx_start_page = start_page + TX_PAGES;
762 #ifdef PACKETBUF_MEMSIZE
763 /* Allow the packet buffer size to be overridden by know-it-alls. */
764 ei_local->stop_page = ei_local->tx_start_page + PACKETBUF_MEMSIZE;
767 ei_local->reset_8390 = &ax_reset_8390;
768 ei_local->block_input = &ax_block_input;
769 ei_local->block_output = &ax_block_output;
770 ei_local->get_8390_hdr = &ax_get_8390_hdr;
773 dev->netdev_ops = &ax_netdev_ops;
774 dev->ethtool_ops = &ax_ethtool_ops;
776 ax->msg_enable = NETIF_MSG_LINK;
777 ax->mii.phy_id_mask = 0x1f;
778 ax->mii.reg_num_mask = 0x1f;
779 ax->mii.phy_id = 0x10; /* onboard phy */
780 ax->mii.force_media = 0;
781 ax->mii.full_duplex = 0;
782 ax->mii.mdio_read = ax_phy_read;
783 ax->mii.mdio_write = ax_phy_write;
786 ax_NS8390_init(dev, 0);
788 dev_info(&ax->dev->dev, "%dbit, irq %d, %lx, MAC: %pM\n",
789 ei_local->word16 ? 16 : 8, dev->irq, dev->base_addr,
792 ret = register_netdev(dev);
800 free_irq(dev->irq, dev);
805 static int ax_remove(struct platform_device *_dev)
807 struct net_device *dev = platform_get_drvdata(_dev);
808 struct ei_device *ei_local = netdev_priv(dev);
809 struct ax_device *ax;
813 unregister_netdev(dev);
814 free_irq(dev->irq, dev);
816 iounmap(ei_local->mem);
817 release_resource(ax->mem);
822 release_resource(ax->mem2);
834 * This is the entry point when the platform device system uses to
835 * notify us of a new device to attach to. Allocate memory, find the
836 * resources and information passed, and map the necessary registers.
838 static int ax_probe(struct platform_device *pdev)
840 struct net_device *dev;
841 struct ei_device *ei_local;
842 struct ax_device *ax;
843 struct resource *res;
847 dev = ax__alloc_ei_netdev(sizeof(struct ax_device));
851 /* ok, let's setup our device */
852 ei_local = netdev_priv(dev);
855 spin_lock_init(&ax->mii_lock);
858 ax->plat = pdev->dev.platform_data;
859 platform_set_drvdata(pdev, dev);
861 ei_local->rxcr_base = ax->plat->rcr_val;
863 /* find the platform resources */
864 res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
866 dev_err(&pdev->dev, "no IRQ specified\n");
871 dev->irq = res->start;
872 ax->irqflags = res->flags & IRQF_TRIGGER_MASK;
874 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
876 dev_err(&pdev->dev, "no MEM specified\n");
881 size = (res->end - res->start) + 1;
884 * setup the register offsets from either the platform data or
885 * by using the size of the resource provided
887 if (ax->plat->reg_offsets)
888 ei_local->reg_offset = ax->plat->reg_offsets;
890 ei_local->reg_offset = ax->reg_offsets;
891 for (ret = 0; ret < 0x18; ret++)
892 ax->reg_offsets[ret] = (size / 0x18) * ret;
895 ax->mem = request_mem_region(res->start, size, pdev->name);
896 if (ax->mem == NULL) {
897 dev_err(&pdev->dev, "cannot reserve registers\n");
902 ei_local->mem = ioremap(res->start, size);
903 dev->base_addr = (unsigned long)ei_local->mem;
905 if (ei_local->mem == NULL) {
906 dev_err(&pdev->dev, "Cannot ioremap area (%08llx,%08llx)\n",
907 (unsigned long long)res->start,
908 (unsigned long long)res->end);
914 /* look for reset area */
916 res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
918 if (!ax->plat->reg_offsets) {
919 for (ret = 0; ret < 0x20; ret++)
920 ax->reg_offsets[ret] = (size / 0x20) * ret;
925 size = (res->end - res->start) + 1;
927 ax->mem2 = request_mem_region(res->start, size, pdev->name);
928 if (ax->mem2 == NULL) {
929 dev_err(&pdev->dev, "cannot reserve registers\n");
934 ax->map2 = ioremap(res->start, size);
935 if (ax->map2 == NULL) {
936 dev_err(&pdev->dev, "cannot map reset register\n");
941 ei_local->reg_offset[0x1f] = ax->map2 - ei_local->mem;
944 /* got resources, now initialise and register device */
946 ret = ax_init_dev(dev);
950 if (ax->map2 == NULL)
956 release_resource(ax->mem2);
960 iounmap(ei_local->mem);
963 release_resource(ax->mem);
972 /* suspend and resume */
975 static int ax_suspend(struct platform_device *dev, pm_message_t state)
977 struct net_device *ndev = platform_get_drvdata(dev);
978 struct ax_device *ax = to_ax_dev(ndev);
980 ax->resume_open = ax->running;
982 netif_device_detach(ndev);
988 static int ax_resume(struct platform_device *pdev)
990 struct net_device *ndev = platform_get_drvdata(pdev);
991 struct ax_device *ax = to_ax_dev(ndev);
993 ax_initial_setup(ndev, netdev_priv(ndev));
994 ax_NS8390_init(ndev, ax->resume_open);
995 netif_device_attach(ndev);
1004 #define ax_suspend NULL
1005 #define ax_resume NULL
1008 static struct platform_driver axdrv = {
1011 .owner = THIS_MODULE,
1014 .remove = ax_remove,
1015 .suspend = ax_suspend,
1016 .resume = ax_resume,
1019 static int __init axdrv_init(void)
1021 return platform_driver_register(&axdrv);
1024 static void __exit axdrv_exit(void)
1026 platform_driver_unregister(&axdrv);
1029 module_init(axdrv_init);
1030 module_exit(axdrv_exit);
1032 MODULE_DESCRIPTION("AX88796 10/100 Ethernet platform driver");
1033 MODULE_AUTHOR("Ben Dooks, <ben@simtec.co.uk>");
1034 MODULE_LICENSE("GPL v2");
1035 MODULE_ALIAS("platform:ax88796");