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>
28 #include <linux/slab.h>
30 #include <net/ax88796.h>
32 #include <asm/system.h>
35 static int phy_debug = 0;
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);
110 * 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. */
139 /* Hard reset the card. This used to pause for the same period that a
140 8390 reset command required, but that shouldn't be necessary. */
142 static void ax_reset_8390(struct net_device *dev)
144 struct ei_device *ei_local = netdev_priv(dev);
145 struct ax_device *ax = to_ax_dev(dev);
146 unsigned long reset_start_time = jiffies;
147 void __iomem *addr = (void __iomem *)dev->base_addr;
150 dev_dbg(&ax->dev->dev, "resetting the 8390 t=%ld\n", jiffies);
152 ei_outb(ei_inb(addr + NE_RESET), addr + NE_RESET);
155 ei_status.dmaing = 0;
157 /* This check _should_not_ be necessary, omit eventually. */
158 while ((ei_inb(addr + EN0_ISR) & ENISR_RESET) == 0) {
159 if (jiffies - reset_start_time > 2*HZ/100) {
160 dev_warn(&ax->dev->dev, "%s: %s did not complete.\n",
161 __func__, dev->name);
166 ei_outb(ENISR_RESET, addr + EN0_ISR); /* Ack intr. */
170 static void ax_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
173 struct ei_device *ei_local = netdev_priv(dev);
174 struct ax_device *ax = to_ax_dev(dev);
175 void __iomem *nic_base = ei_local->mem;
177 /* This *shouldn't* happen. If it does, it's the last thing you'll see */
178 if (ei_status.dmaing) {
179 dev_err(&ax->dev->dev, "%s: DMAing conflict in %s "
180 "[DMAstat:%d][irqlock:%d].\n",
182 ei_status.dmaing, ei_status.irqlock);
186 ei_status.dmaing |= 0x01;
187 ei_outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD);
188 ei_outb(sizeof(struct e8390_pkt_hdr), nic_base + EN0_RCNTLO);
189 ei_outb(0, nic_base + EN0_RCNTHI);
190 ei_outb(0, nic_base + EN0_RSARLO); /* On page boundary */
191 ei_outb(ring_page, nic_base + EN0_RSARHI);
192 ei_outb(E8390_RREAD+E8390_START, nic_base + NE_CMD);
194 if (ei_status.word16)
195 readsw(nic_base + NE_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr)>>1);
197 readsb(nic_base + NE_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr));
199 ei_outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */
200 ei_status.dmaing &= ~0x01;
202 le16_to_cpus(&hdr->count);
206 /* Block input and output, similar to the Crynwr packet driver. If you
207 are porting to a new ethercard, look at the packet driver source for hints.
208 The NEx000 doesn't share the on-board packet memory -- you have to put
209 the packet out through the "remote DMA" dataport using ei_outb. */
211 static void ax_block_input(struct net_device *dev, int count,
212 struct sk_buff *skb, int ring_offset)
214 struct ei_device *ei_local = netdev_priv(dev);
215 struct ax_device *ax = to_ax_dev(dev);
216 void __iomem *nic_base = ei_local->mem;
217 char *buf = skb->data;
219 if (ei_status.dmaing) {
220 dev_err(&ax->dev->dev,
221 "%s: DMAing conflict in %s "
222 "[DMAstat:%d][irqlock:%d].\n",
224 ei_status.dmaing, ei_status.irqlock);
228 ei_status.dmaing |= 0x01;
230 ei_outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD);
231 ei_outb(count & 0xff, nic_base + EN0_RCNTLO);
232 ei_outb(count >> 8, nic_base + EN0_RCNTHI);
233 ei_outb(ring_offset & 0xff, nic_base + EN0_RSARLO);
234 ei_outb(ring_offset >> 8, nic_base + EN0_RSARHI);
235 ei_outb(E8390_RREAD+E8390_START, nic_base + NE_CMD);
237 if (ei_status.word16) {
238 readsw(nic_base + NE_DATAPORT, buf, count >> 1);
240 buf[count-1] = ei_inb(nic_base + NE_DATAPORT);
243 readsb(nic_base + NE_DATAPORT, buf, count);
246 ei_status.dmaing &= ~1;
249 static void ax_block_output(struct net_device *dev, int count,
250 const unsigned char *buf, const int start_page)
252 struct ei_device *ei_local = netdev_priv(dev);
253 struct ax_device *ax = to_ax_dev(dev);
254 void __iomem *nic_base = ei_local->mem;
255 unsigned long dma_start;
257 /* Round the count up for word writes. Do we need to do this?
258 What effect will an odd byte count have on the 8390?
259 I should check someday. */
261 if (ei_status.word16 && (count & 0x01))
264 /* This *shouldn't* happen. If it does, it's the last thing you'll see */
265 if (ei_status.dmaing) {
266 dev_err(&ax->dev->dev, "%s: DMAing conflict in %s."
267 "[DMAstat:%d][irqlock:%d]\n",
269 ei_status.dmaing, ei_status.irqlock);
273 ei_status.dmaing |= 0x01;
274 /* We should already be in page 0, but to be safe... */
275 ei_outb(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD);
277 ei_outb(ENISR_RDC, nic_base + EN0_ISR);
279 /* Now the normal output. */
280 ei_outb(count & 0xff, nic_base + EN0_RCNTLO);
281 ei_outb(count >> 8, nic_base + EN0_RCNTHI);
282 ei_outb(0x00, nic_base + EN0_RSARLO);
283 ei_outb(start_page, nic_base + EN0_RSARHI);
285 ei_outb(E8390_RWRITE+E8390_START, nic_base + NE_CMD);
286 if (ei_status.word16) {
287 writesw(nic_base + NE_DATAPORT, buf, count>>1);
289 writesb(nic_base + NE_DATAPORT, buf, count);
294 while ((ei_inb(nic_base + EN0_ISR) & ENISR_RDC) == 0) {
295 if (jiffies - dma_start > 2*HZ/100) { /* 20ms */
296 dev_warn(&ax->dev->dev,
297 "%s: timeout waiting for Tx RDC.\n", dev->name);
299 ax_NS8390_init(dev,1);
304 ei_outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */
305 ei_status.dmaing &= ~0x01;
308 /* definitions for accessing MII/EEPROM interface */
310 #define AX_MEMR EI_SHIFT(0x14)
311 #define AX_MEMR_MDC (1<<0)
312 #define AX_MEMR_MDIR (1<<1)
313 #define AX_MEMR_MDI (1<<2)
314 #define AX_MEMR_MDO (1<<3)
315 #define AX_MEMR_EECS (1<<4)
316 #define AX_MEMR_EEI (1<<5)
317 #define AX_MEMR_EEO (1<<6)
318 #define AX_MEMR_EECLK (1<<7)
322 * write the specified set of bits to the phy
326 ax_mii_ei_outbits(struct net_device *dev, unsigned int bits, int len)
328 struct ei_device *ei_local = (struct ei_device *) netdev_priv(dev);
329 void __iomem *memr_addr = (void __iomem *)dev->base_addr + AX_MEMR;
332 /* clock low, data to output mode */
333 memr = ei_inb(memr_addr);
334 memr &= ~(AX_MEMR_MDC | AX_MEMR_MDIR);
335 ei_outb(memr, memr_addr);
337 for (len--; len >= 0; len--) {
338 if (bits & (1 << len))
341 memr &= ~AX_MEMR_MDO;
343 ei_outb(memr, memr_addr);
347 ei_outb(memr | AX_MEMR_MDC, memr_addr);
351 ei_outb(memr, memr_addr);
354 /* leaves the clock line low, mdir input */
355 memr |= AX_MEMR_MDIR;
356 ei_outb(memr, (void __iomem *)dev->base_addr + AX_MEMR);
361 * read a specified number of bits from the phy
365 ax_phy_ei_inbits(struct net_device *dev, int no)
367 struct ei_device *ei_local = (struct ei_device *) netdev_priv(dev);
368 void __iomem *memr_addr = (void __iomem *)dev->base_addr + AX_MEMR;
370 unsigned int result = 0;
372 /* clock low, data to input mode */
373 memr = ei_inb(memr_addr);
374 memr &= ~AX_MEMR_MDC;
375 memr |= AX_MEMR_MDIR;
376 ei_outb(memr, memr_addr);
378 for (no--; no >= 0; no--) {
379 ei_outb(memr | AX_MEMR_MDC, memr_addr);
383 if (ei_inb(memr_addr) & AX_MEMR_MDI)
386 ei_outb(memr, memr_addr);
394 * use the low level bit shifting routines to send the address
395 * and command to the specified phy
399 ax_phy_issueaddr(struct net_device *dev, int phy_addr, int reg, int opc)
402 pr_debug("%s: dev %p, %04x, %04x, %d\n",
403 __func__, dev, phy_addr, reg, opc);
405 ax_mii_ei_outbits(dev, 0x3f, 6); /* pre-amble */
406 ax_mii_ei_outbits(dev, 1, 2); /* frame-start */
407 ax_mii_ei_outbits(dev, opc, 2); /* op code */
408 ax_mii_ei_outbits(dev, phy_addr, 5); /* phy address */
409 ax_mii_ei_outbits(dev, reg, 5); /* reg address */
413 ax_phy_read(struct net_device *dev, int phy_addr, int reg)
415 struct ei_device *ei_local = (struct ei_device *) netdev_priv(dev);
419 spin_lock_irqsave(&ei_local->page_lock, flags);
421 ax_phy_issueaddr(dev, phy_addr, reg, 2);
423 result = ax_phy_ei_inbits(dev, 17);
426 spin_unlock_irqrestore(&ei_local->page_lock, flags);
429 pr_debug("%s: %04x.%04x => read %04x\n", __func__,
430 phy_addr, reg, result);
436 ax_phy_write(struct net_device *dev, int phy_addr, int reg, int value)
438 struct ei_device *ei = (struct ei_device *) netdev_priv(dev);
439 struct ax_device *ax = to_ax_dev(dev);
442 dev_dbg(&ax->dev->dev, "%s: %p, %04x, %04x %04x\n",
443 __func__, dev, phy_addr, reg, value);
445 spin_lock_irqsave(&ei->page_lock, flags);
447 ax_phy_issueaddr(dev, phy_addr, reg, 1);
448 ax_mii_ei_outbits(dev, 2, 2); /* send TA */
449 ax_mii_ei_outbits(dev, value, 16);
451 spin_unlock_irqrestore(&ei->page_lock, flags);
454 static void ax_mii_expiry(unsigned long data)
456 struct net_device *dev = (struct net_device *)data;
457 struct ax_device *ax = to_ax_dev(dev);
460 spin_lock_irqsave(&ax->mii_lock, flags);
461 mii_check_media(&ax->mii, netif_msg_link(ax), 0);
462 spin_unlock_irqrestore(&ax->mii_lock, flags);
465 ax->mii_timer.expires = jiffies + HZ*2;
466 add_timer(&ax->mii_timer);
470 static int ax_open(struct net_device *dev)
472 struct ax_device *ax = to_ax_dev(dev);
473 struct ei_device *ei_local = netdev_priv(dev);
476 dev_dbg(&ax->dev->dev, "%s: open\n", dev->name);
478 ret = request_irq(dev->irq, ax_ei_interrupt, ax->irqflags,
483 ret = ax_ei_open(dev);
485 free_irq(dev->irq, dev);
489 /* turn the phy on (if turned off) */
491 ei_outb(ax->plat->gpoc_val, ei_local->mem + EI_SHIFT(0x17));
494 /* start the MII timer */
496 init_timer(&ax->mii_timer);
498 ax->mii_timer.expires = jiffies+1;
499 ax->mii_timer.data = (unsigned long) dev;
500 ax->mii_timer.function = ax_mii_expiry;
502 add_timer(&ax->mii_timer);
507 static int ax_close(struct net_device *dev)
509 struct ax_device *ax = to_ax_dev(dev);
510 struct ei_device *ei_local = netdev_priv(dev);
512 dev_dbg(&ax->dev->dev, "%s: close\n", dev->name);
514 /* turn the phy off */
516 ei_outb(ax->plat->gpoc_val | (1<<6),
517 ei_local->mem + EI_SHIFT(0x17));
522 del_timer_sync(&ax->mii_timer);
525 free_irq(dev->irq, dev);
529 static int ax_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
531 struct ax_device *ax = to_ax_dev(dev);
535 if (!netif_running(dev))
538 spin_lock_irqsave(&ax->mii_lock, flags);
539 rc = generic_mii_ioctl(&ax->mii, if_mii(req), cmd, NULL);
540 spin_unlock_irqrestore(&ax->mii_lock, flags);
547 static void ax_get_drvinfo(struct net_device *dev,
548 struct ethtool_drvinfo *info)
550 struct ax_device *ax = to_ax_dev(dev);
552 strcpy(info->driver, DRV_NAME);
553 strcpy(info->version, DRV_VERSION);
554 strcpy(info->bus_info, ax->dev->name);
557 static int ax_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
559 struct ax_device *ax = to_ax_dev(dev);
562 spin_lock_irqsave(&ax->mii_lock, flags);
563 mii_ethtool_gset(&ax->mii, cmd);
564 spin_unlock_irqrestore(&ax->mii_lock, flags);
569 static int ax_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
571 struct ax_device *ax = to_ax_dev(dev);
575 spin_lock_irqsave(&ax->mii_lock, flags);
576 rc = mii_ethtool_sset(&ax->mii, cmd);
577 spin_unlock_irqrestore(&ax->mii_lock, flags);
582 static int ax_nway_reset(struct net_device *dev)
584 struct ax_device *ax = to_ax_dev(dev);
585 return mii_nway_restart(&ax->mii);
588 static u32 ax_get_link(struct net_device *dev)
590 struct ax_device *ax = to_ax_dev(dev);
591 return mii_link_ok(&ax->mii);
594 static const struct ethtool_ops ax_ethtool_ops = {
595 .get_drvinfo = ax_get_drvinfo,
596 .get_settings = ax_get_settings,
597 .set_settings = ax_set_settings,
598 .nway_reset = ax_nway_reset,
599 .get_link = ax_get_link,
602 #ifdef CONFIG_AX88796_93CX6
603 static void ax_eeprom_register_read(struct eeprom_93cx6 *eeprom)
605 struct ei_device *ei_local = eeprom->data;
606 u8 reg = ei_inb(ei_local->mem + AX_MEMR);
608 eeprom->reg_data_in = reg & AX_MEMR_EEI;
609 eeprom->reg_data_out = reg & AX_MEMR_EEO; /* Input pin */
610 eeprom->reg_data_clock = reg & AX_MEMR_EECLK;
611 eeprom->reg_chip_select = reg & AX_MEMR_EECS;
614 static void ax_eeprom_register_write(struct eeprom_93cx6 *eeprom)
616 struct ei_device *ei_local = eeprom->data;
617 u8 reg = ei_inb(ei_local->mem + AX_MEMR);
619 reg &= ~(AX_MEMR_EEI | AX_MEMR_EECLK | AX_MEMR_EECS);
621 if (eeprom->reg_data_in)
623 if (eeprom->reg_data_clock)
624 reg |= AX_MEMR_EECLK;
625 if (eeprom->reg_chip_select)
628 ei_outb(reg, ei_local->mem + AX_MEMR);
633 static const struct net_device_ops ax_netdev_ops = {
635 .ndo_stop = ax_close,
636 .ndo_do_ioctl = ax_ioctl,
638 .ndo_start_xmit = ax_ei_start_xmit,
639 .ndo_tx_timeout = ax_ei_tx_timeout,
640 .ndo_get_stats = ax_ei_get_stats,
641 .ndo_set_multicast_list = ax_ei_set_multicast_list,
642 .ndo_validate_addr = eth_validate_addr,
643 .ndo_set_mac_address = eth_mac_addr,
644 .ndo_change_mtu = eth_change_mtu,
645 #ifdef CONFIG_NET_POLL_CONTROLLER
646 .ndo_poll_controller = ax_ei_poll,
652 static void ax_initial_setup(struct net_device *dev, struct ei_device *ei_local)
654 void __iomem *ioaddr = ei_local->mem;
655 struct ax_device *ax = to_ax_dev(dev);
658 ei_outb(E8390_NODMA+E8390_PAGE0+E8390_STOP, ioaddr + E8390_CMD);
660 /* set to byte access */
661 ei_outb(ax->plat->dcr_val & ~1, ioaddr + EN0_DCFG);
662 ei_outb(ax->plat->gpoc_val, ioaddr + EI_SHIFT(0x17));
667 * initialise the specified device, taking care to note the MAC
668 * address it may already have (if configured), ensure
669 * the device is ready to be used by lib8390.c and registerd with
673 static int ax_init_dev(struct net_device *dev, int first_init)
675 struct ei_device *ei_local = netdev_priv(dev);
676 struct ax_device *ax = to_ax_dev(dev);
677 void __iomem *ioaddr = ei_local->mem;
678 unsigned int start_page;
679 unsigned int stop_page;
683 ret = ax_initial_check(dev);
687 /* setup goes here */
689 ax_initial_setup(dev, ei_local);
691 /* read the mac from the card prom if we need it */
693 if (first_init && ax->plat->flags & AXFLG_HAS_EEPROM) {
694 unsigned char SA_prom[32];
696 for(i = 0; i < sizeof(SA_prom); i+=2) {
697 SA_prom[i] = ei_inb(ioaddr + NE_DATAPORT);
698 SA_prom[i+1] = ei_inb(ioaddr + NE_DATAPORT);
701 if (ax->plat->wordlength == 2)
702 for (i = 0; i < 16; i++)
703 SA_prom[i] = SA_prom[i+i];
705 memcpy(dev->dev_addr, SA_prom, 6);
708 #ifdef CONFIG_AX88796_93CX6
709 if (first_init && ax->plat->flags & AXFLG_HAS_93CX6) {
710 unsigned char mac_addr[6];
711 struct eeprom_93cx6 eeprom;
713 eeprom.data = ei_local;
714 eeprom.register_read = ax_eeprom_register_read;
715 eeprom.register_write = ax_eeprom_register_write;
716 eeprom.width = PCI_EEPROM_WIDTH_93C56;
718 eeprom_93cx6_multiread(&eeprom, 0,
719 (__le16 __force *)mac_addr,
720 sizeof(mac_addr) >> 1);
722 memcpy(dev->dev_addr, mac_addr, 6);
725 if (ax->plat->wordlength == 2) {
726 /* We must set the 8390 for word mode. */
727 ei_outb(ax->plat->dcr_val, ei_local->mem + EN0_DCFG);
728 start_page = NESM_START_PG;
729 stop_page = NESM_STOP_PG;
731 start_page = NE1SM_START_PG;
732 stop_page = NE1SM_STOP_PG;
735 /* load the mac-address from the device if this is the
736 * first time we've initialised */
739 if (ax->plat->flags & AXFLG_MAC_FROMDEV) {
740 ei_outb(E8390_NODMA + E8390_PAGE1 + E8390_STOP,
741 ei_local->mem + E8390_CMD); /* 0x61 */
742 for (i = 0; i < ETHER_ADDR_LEN; i++)
744 ei_inb(ioaddr + EN1_PHYS_SHIFT(i));
747 if ((ax->plat->flags & AXFLG_MAC_FROMPLATFORM) &&
749 memcpy(dev->dev_addr, ax->plat->mac_addr,
755 ei_status.name = "AX88796";
756 ei_status.tx_start_page = start_page;
757 ei_status.stop_page = stop_page;
758 ei_status.word16 = (ax->plat->wordlength == 2);
759 ei_status.rx_start_page = start_page + TX_PAGES;
761 #ifdef PACKETBUF_MEMSIZE
762 /* Allow the packet buffer size to be overridden by know-it-alls. */
763 ei_status.stop_page = ei_status.tx_start_page + PACKETBUF_MEMSIZE;
766 ei_status.reset_8390 = &ax_reset_8390;
767 ei_status.block_input = &ax_block_input;
768 ei_status.block_output = &ax_block_output;
769 ei_status.get_8390_hdr = &ax_get_8390_hdr;
772 dev->netdev_ops = &ax_netdev_ops;
773 dev->ethtool_ops = &ax_ethtool_ops;
775 ax->msg_enable = NETIF_MSG_LINK;
776 ax->mii.phy_id_mask = 0x1f;
777 ax->mii.reg_num_mask = 0x1f;
778 ax->mii.phy_id = 0x10; /* onboard phy */
779 ax->mii.force_media = 0;
780 ax->mii.full_duplex = 0;
781 ax->mii.mdio_read = ax_phy_read;
782 ax->mii.mdio_write = ax_phy_write;
785 ax_NS8390_init(dev, 0);
788 dev_info(&ax->dev->dev, "%dbit, irq %d, %lx, MAC: %pM\n",
789 ei_status.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 ax_device *ax;
812 unregister_netdev(dev);
813 free_irq(dev->irq, dev);
815 iounmap(ei_status.mem);
816 release_resource(ax->mem);
821 release_resource(ax->mem2);
832 * This is the entry point when the platform device system uses to
833 * notify us of a new device to attach to. Allocate memory, find
834 * the resources and information passed, and map the necessary registers.
837 static int ax_probe(struct platform_device *pdev)
839 struct net_device *dev;
840 struct ax_device *ax;
841 struct resource *res;
845 dev = ax__alloc_ei_netdev(sizeof(struct ax_device));
849 /* ok, let's setup our device */
852 memset(ax, 0, sizeof(struct ax_device));
854 spin_lock_init(&ax->mii_lock);
857 ax->plat = pdev->dev.platform_data;
858 platform_set_drvdata(pdev, dev);
860 ei_status.rxcr_base = ax->plat->rcr_val;
862 /* find the platform resources */
864 res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
866 dev_err(&pdev->dev, "no IRQ specified\n");
870 dev->irq = res->start;
871 ax->irqflags = res->flags & IRQF_TRIGGER_MASK;
873 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
875 dev_err(&pdev->dev, "no MEM specified\n");
880 size = (res->end - res->start) + 1;
882 /* setup the register offsets from either the platform data
883 * or by using the size of the resource provided */
885 if (ax->plat->reg_offsets)
886 ei_status.reg_offset = ax->plat->reg_offsets;
888 ei_status.reg_offset = ax->reg_offsets;
889 for (ret = 0; ret < 0x18; ret++)
890 ax->reg_offsets[ret] = (size / 0x18) * ret;
893 ax->mem = request_mem_region(res->start, size, pdev->name);
894 if (ax->mem == NULL) {
895 dev_err(&pdev->dev, "cannot reserve registers\n");
900 ei_status.mem = ioremap(res->start, size);
901 dev->base_addr = (unsigned long)ei_status.mem;
903 if (ei_status.mem == NULL) {
904 dev_err(&pdev->dev, "Cannot ioremap area (%08llx,%08llx)\n",
905 (unsigned long long)res->start,
906 (unsigned long long)res->end);
912 /* look for reset area */
914 res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
916 if (!ax->plat->reg_offsets) {
917 for (ret = 0; ret < 0x20; ret++)
918 ax->reg_offsets[ret] = (size / 0x20) * ret;
923 size = (res->end - res->start) + 1;
925 ax->mem2 = request_mem_region(res->start, size, pdev->name);
926 if (ax->mem2 == NULL) {
927 dev_err(&pdev->dev, "cannot reserve registers\n");
932 ax->map2 = ioremap(res->start, size);
933 if (ax->map2 == NULL) {
934 dev_err(&pdev->dev, "cannot map reset register\n");
939 ei_status.reg_offset[0x1f] = ax->map2 - ei_status.mem;
942 /* got resources, now initialise and register device */
944 ret = ax_init_dev(dev, 1);
948 if (ax->map2 == NULL)
954 release_resource(ax->mem2);
958 iounmap(ei_status.mem);
961 release_resource(ax->mem);
970 /* suspend and resume */
973 static int ax_suspend(struct platform_device *dev, pm_message_t state)
975 struct net_device *ndev = platform_get_drvdata(dev);
976 struct ax_device *ax = to_ax_dev(ndev);
978 ax->resume_open = ax->running;
980 netif_device_detach(ndev);
986 static int ax_resume(struct platform_device *pdev)
988 struct net_device *ndev = platform_get_drvdata(pdev);
989 struct ax_device *ax = to_ax_dev(ndev);
991 ax_initial_setup(ndev, netdev_priv(ndev));
992 ax_NS8390_init(ndev, ax->resume_open);
993 netif_device_attach(ndev);
1002 #define ax_suspend NULL
1003 #define ax_resume NULL
1006 static struct platform_driver axdrv = {
1009 .owner = THIS_MODULE,
1012 .remove = ax_remove,
1013 .suspend = ax_suspend,
1014 .resume = ax_resume,
1017 static int __init axdrv_init(void)
1019 return platform_driver_register(&axdrv);
1022 static void __exit axdrv_exit(void)
1024 platform_driver_unregister(&axdrv);
1027 module_init(axdrv_init);
1028 module_exit(axdrv_exit);
1030 MODULE_DESCRIPTION("AX88796 10/100 Ethernet platform driver");
1031 MODULE_AUTHOR("Ben Dooks, <ben@simtec.co.uk>");
1032 MODULE_LICENSE("GPL v2");
1033 MODULE_ALIAS("platform:ax88796");