3 * This is a driver for SMSC's LAN911{5,6,7,8} single-chip Ethernet devices.
5 * Copyright (C) 2005 Sensoria Corp
6 * Derived from the unified SMC91x driver by Nicolas Pitre
7 * and the smsc911x.c reference driver by SMSC
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 * watchdog = TX watchdog timeout
25 * tx_fifo_kb = Size of TX FIFO in KB
28 * 04/16/05 Dustin McIntire Initial version
30 static const char version[] =
31 "smc911x.c: v1.0 04-16-2005 by Dustin McIntire <dustin@sensoria.com>\n";
33 /* Debugging options */
34 #define ENABLE_SMC_DEBUG_RX 0
35 #define ENABLE_SMC_DEBUG_TX 0
36 #define ENABLE_SMC_DEBUG_DMA 0
37 #define ENABLE_SMC_DEBUG_PKTS 0
38 #define ENABLE_SMC_DEBUG_MISC 0
39 #define ENABLE_SMC_DEBUG_FUNC 0
41 #define SMC_DEBUG_RX ((ENABLE_SMC_DEBUG_RX ? 1 : 0) << 0)
42 #define SMC_DEBUG_TX ((ENABLE_SMC_DEBUG_TX ? 1 : 0) << 1)
43 #define SMC_DEBUG_DMA ((ENABLE_SMC_DEBUG_DMA ? 1 : 0) << 2)
44 #define SMC_DEBUG_PKTS ((ENABLE_SMC_DEBUG_PKTS ? 1 : 0) << 3)
45 #define SMC_DEBUG_MISC ((ENABLE_SMC_DEBUG_MISC ? 1 : 0) << 4)
46 #define SMC_DEBUG_FUNC ((ENABLE_SMC_DEBUG_FUNC ? 1 : 0) << 5)
49 #define SMC_DEBUG ( SMC_DEBUG_RX | \
58 #include <linux/init.h>
59 #include <linux/module.h>
60 #include <linux/kernel.h>
61 #include <linux/sched.h>
62 #include <linux/slab.h>
63 #include <linux/delay.h>
64 #include <linux/interrupt.h>
65 #include <linux/errno.h>
66 #include <linux/ioport.h>
67 #include <linux/crc32.h>
68 #include <linux/device.h>
69 #include <linux/platform_device.h>
70 #include <linux/spinlock.h>
71 #include <linux/ethtool.h>
72 #include <linux/mii.h>
73 #include <linux/workqueue.h>
75 #include <linux/netdevice.h>
76 #include <linux/etherdevice.h>
77 #include <linux/skbuff.h>
84 * Transmit timeout, default 5 seconds.
86 static int watchdog = 5000;
87 module_param(watchdog, int, 0400);
88 MODULE_PARM_DESC(watchdog, "transmit timeout in milliseconds");
90 static int tx_fifo_kb=8;
91 module_param(tx_fifo_kb, int, 0400);
92 MODULE_PARM_DESC(tx_fifo_kb,"transmit FIFO size in KB (1<x<15)(default=8)");
94 MODULE_LICENSE("GPL");
95 MODULE_ALIAS("platform:smc911x");
98 * The internal workings of the driver. If you are changing anything
99 * here with the SMC stuff, you should have the datasheet and know
100 * what you are doing.
102 #define CARDNAME "smc911x"
105 * Use power-down feature of the chip
110 #define DBG(n, args...) \
112 if (SMC_DEBUG & (n)) \
116 #define PRINTK(args...) printk(args)
118 #define DBG(n, args...) do { } while (0)
119 #define PRINTK(args...) printk(KERN_DEBUG args)
122 #if SMC_DEBUG_PKTS > 0
123 static void PRINT_PKT(u_char *buf, int length)
130 remainder = length % 16;
132 for (i = 0; i < lines ; i ++) {
134 for (cur = 0; cur < 8; cur++) {
138 printk("%02x%02x ", a, b);
142 for (i = 0; i < remainder/2 ; i++) {
146 printk("%02x%02x ", a, b);
151 #define PRINT_PKT(x...) do { } while (0)
155 /* this enables an interrupt in the interrupt mask register */
156 #define SMC_ENABLE_INT(lp, x) do { \
157 unsigned int __mask; \
158 unsigned long __flags; \
159 spin_lock_irqsave(&lp->lock, __flags); \
160 __mask = SMC_GET_INT_EN((lp)); \
162 SMC_SET_INT_EN((lp), __mask); \
163 spin_unlock_irqrestore(&lp->lock, __flags); \
166 /* this disables an interrupt from the interrupt mask register */
167 #define SMC_DISABLE_INT(lp, x) do { \
168 unsigned int __mask; \
169 unsigned long __flags; \
170 spin_lock_irqsave(&lp->lock, __flags); \
171 __mask = SMC_GET_INT_EN((lp)); \
173 SMC_SET_INT_EN((lp), __mask); \
174 spin_unlock_irqrestore(&lp->lock, __flags); \
178 * this does a soft reset on the device
180 static void smc911x_reset(struct net_device *dev)
182 struct smc911x_local *lp = netdev_priv(dev);
183 unsigned int reg, timeout=0, resets=1;
186 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
188 /* Take out of PM setting first */
189 if ((SMC_GET_PMT_CTRL(lp) & PMT_CTRL_READY_) == 0) {
190 /* Write to the bytetest will take out of powerdown */
191 SMC_SET_BYTE_TEST(lp, 0);
195 reg = SMC_GET_PMT_CTRL(lp) & PMT_CTRL_READY_;
196 } while (--timeout && !reg);
198 PRINTK("%s: smc911x_reset timeout waiting for PM restore\n", dev->name);
203 /* Disable all interrupts */
204 spin_lock_irqsave(&lp->lock, flags);
205 SMC_SET_INT_EN(lp, 0);
206 spin_unlock_irqrestore(&lp->lock, flags);
209 SMC_SET_HW_CFG(lp, HW_CFG_SRST_);
213 reg = SMC_GET_HW_CFG(lp);
214 /* If chip indicates reset timeout then try again */
215 if (reg & HW_CFG_SRST_TO_) {
216 PRINTK("%s: chip reset timeout, retrying...\n", dev->name);
220 } while (--timeout && (reg & HW_CFG_SRST_));
223 PRINTK("%s: smc911x_reset timeout waiting for reset\n", dev->name);
227 /* make sure EEPROM has finished loading before setting GPIO_CFG */
229 while ( timeout-- && (SMC_GET_E2P_CMD(lp) & E2P_CMD_EPC_BUSY_)) {
233 PRINTK("%s: smc911x_reset timeout waiting for EEPROM busy\n", dev->name);
237 /* Initialize interrupts */
238 SMC_SET_INT_EN(lp, 0);
241 /* Reset the FIFO level and flow control settings */
242 SMC_SET_HW_CFG(lp, (lp->tx_fifo_kb & 0xF) << 16);
243 //TODO: Figure out what appropriate pause time is
244 SMC_SET_FLOW(lp, FLOW_FCPT_ | FLOW_FCEN_);
245 SMC_SET_AFC_CFG(lp, lp->afc_cfg);
248 /* Set to LED outputs */
249 SMC_SET_GPIO_CFG(lp, 0x70070000);
252 * Deassert IRQ for 1*10us for edge type interrupts
253 * and drive IRQ pin push-pull
255 SMC_SET_IRQ_CFG(lp, (1 << 24) | INT_CFG_IRQ_EN_ | INT_CFG_IRQ_TYPE_);
257 /* clear anything saved */
258 if (lp->pending_tx_skb != NULL) {
259 dev_kfree_skb (lp->pending_tx_skb);
260 lp->pending_tx_skb = NULL;
261 dev->stats.tx_errors++;
262 dev->stats.tx_aborted_errors++;
267 * Enable Interrupts, Receive, and Transmit
269 static void smc911x_enable(struct net_device *dev)
271 struct smc911x_local *lp = netdev_priv(dev);
272 unsigned mask, cfg, cr;
275 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
277 SMC_SET_MAC_ADDR(lp, dev->dev_addr);
280 cfg = SMC_GET_HW_CFG(lp);
281 cfg &= HW_CFG_TX_FIF_SZ_ | 0xFFF;
283 SMC_SET_HW_CFG(lp, cfg);
284 SMC_SET_FIFO_TDA(lp, 0xFF);
285 /* Update TX stats on every 64 packets received or every 1 sec */
286 SMC_SET_FIFO_TSL(lp, 64);
287 SMC_SET_GPT_CFG(lp, GPT_CFG_TIMER_EN_ | 10000);
289 spin_lock_irqsave(&lp->lock, flags);
290 SMC_GET_MAC_CR(lp, cr);
291 cr |= MAC_CR_TXEN_ | MAC_CR_HBDIS_;
292 SMC_SET_MAC_CR(lp, cr);
293 SMC_SET_TX_CFG(lp, TX_CFG_TX_ON_);
294 spin_unlock_irqrestore(&lp->lock, flags);
296 /* Add 2 byte padding to start of packets */
297 SMC_SET_RX_CFG(lp, (2<<8) & RX_CFG_RXDOFF_);
299 /* Turn on receiver and enable RX */
300 if (cr & MAC_CR_RXEN_)
301 DBG(SMC_DEBUG_RX, "%s: Receiver already enabled\n", dev->name);
303 spin_lock_irqsave(&lp->lock, flags);
304 SMC_SET_MAC_CR(lp, cr | MAC_CR_RXEN_);
305 spin_unlock_irqrestore(&lp->lock, flags);
307 /* Interrupt on every received packet */
308 SMC_SET_FIFO_RSA(lp, 0x01);
309 SMC_SET_FIFO_RSL(lp, 0x00);
311 /* now, enable interrupts */
312 mask = INT_EN_TDFA_EN_ | INT_EN_TSFL_EN_ | INT_EN_RSFL_EN_ |
313 INT_EN_GPT_INT_EN_ | INT_EN_RXDFH_INT_EN_ | INT_EN_RXE_EN_ |
315 if (IS_REV_A(lp->revision))
316 mask|=INT_EN_RDFL_EN_;
318 mask|=INT_EN_RDFO_EN_;
320 SMC_ENABLE_INT(lp, mask);
324 * this puts the device in an inactive state
326 static void smc911x_shutdown(struct net_device *dev)
328 struct smc911x_local *lp = netdev_priv(dev);
332 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", CARDNAME, __func__);
335 SMC_SET_INT_EN(lp, 0);
337 /* Turn of Rx and TX */
338 spin_lock_irqsave(&lp->lock, flags);
339 SMC_GET_MAC_CR(lp, cr);
340 cr &= ~(MAC_CR_TXEN_ | MAC_CR_RXEN_ | MAC_CR_HBDIS_);
341 SMC_SET_MAC_CR(lp, cr);
342 SMC_SET_TX_CFG(lp, TX_CFG_STOP_TX_);
343 spin_unlock_irqrestore(&lp->lock, flags);
346 static inline void smc911x_drop_pkt(struct net_device *dev)
348 struct smc911x_local *lp = netdev_priv(dev);
349 unsigned int fifo_count, timeout, reg;
351 DBG(SMC_DEBUG_FUNC | SMC_DEBUG_RX, "%s: --> %s\n", CARDNAME, __func__);
352 fifo_count = SMC_GET_RX_FIFO_INF(lp) & 0xFFFF;
353 if (fifo_count <= 4) {
354 /* Manually dump the packet data */
358 /* Fast forward through the bad packet */
359 SMC_SET_RX_DP_CTRL(lp, RX_DP_CTRL_FFWD_BUSY_);
363 reg = SMC_GET_RX_DP_CTRL(lp) & RX_DP_CTRL_FFWD_BUSY_;
364 } while (--timeout && reg);
366 PRINTK("%s: timeout waiting for RX fast forward\n", dev->name);
372 * This is the procedure to handle the receipt of a packet.
373 * It should be called after checking for packet presence in
374 * the RX status FIFO. It must be called with the spin lock
377 static inline void smc911x_rcv(struct net_device *dev)
379 struct smc911x_local *lp = netdev_priv(dev);
380 unsigned int pkt_len, status;
384 DBG(SMC_DEBUG_FUNC | SMC_DEBUG_RX, "%s: --> %s\n",
385 dev->name, __func__);
386 status = SMC_GET_RX_STS_FIFO(lp);
387 DBG(SMC_DEBUG_RX, "%s: Rx pkt len %d status 0x%08x \n",
388 dev->name, (status & 0x3fff0000) >> 16, status & 0xc000ffff);
389 pkt_len = (status & RX_STS_PKT_LEN_) >> 16;
390 if (status & RX_STS_ES_) {
391 /* Deal with a bad packet */
392 dev->stats.rx_errors++;
393 if (status & RX_STS_CRC_ERR_)
394 dev->stats.rx_crc_errors++;
396 if (status & RX_STS_LEN_ERR_)
397 dev->stats.rx_length_errors++;
398 if (status & RX_STS_MCAST_)
399 dev->stats.multicast++;
401 /* Remove the bad packet data from the RX FIFO */
402 smc911x_drop_pkt(dev);
404 /* Receive a valid packet */
405 /* Alloc a buffer with extra room for DMA alignment */
406 skb=dev_alloc_skb(pkt_len+32);
407 if (unlikely(skb == NULL)) {
408 PRINTK( "%s: Low memory, rcvd packet dropped.\n",
410 dev->stats.rx_dropped++;
411 smc911x_drop_pkt(dev);
414 /* Align IP header to 32 bits
415 * Note that the device is configured to add a 2
416 * byte padding to the packet start, so we really
417 * want to write to the orignal data pointer */
420 skb_put(skb,pkt_len-4);
424 /* Lower the FIFO threshold if possible */
425 fifo = SMC_GET_FIFO_INT(lp);
426 if (fifo & 0xFF) fifo--;
427 DBG(SMC_DEBUG_RX, "%s: Setting RX stat FIFO threshold to %d\n",
428 dev->name, fifo & 0xff);
429 SMC_SET_FIFO_INT(lp, fifo);
431 SMC_SET_RX_CFG(lp, RX_CFG_RX_END_ALGN16_ | ((2<<8) & RX_CFG_RXDOFF_));
432 lp->rxdma_active = 1;
433 lp->current_rx_skb = skb;
434 SMC_PULL_DATA(lp, data, (pkt_len+2+15) & ~15);
435 /* Packet processing deferred to DMA RX interrupt */
438 SMC_SET_RX_CFG(lp, RX_CFG_RX_END_ALGN4_ | ((2<<8) & RX_CFG_RXDOFF_));
439 SMC_PULL_DATA(lp, data, pkt_len+2+3);
441 DBG(SMC_DEBUG_PKTS, "%s: Received packet\n", dev->name);
442 PRINT_PKT(data, ((pkt_len - 4) <= 64) ? pkt_len - 4 : 64);
443 dev->last_rx = jiffies;
444 skb->protocol = eth_type_trans(skb, dev);
446 dev->stats.rx_packets++;
447 dev->stats.rx_bytes += pkt_len-4;
453 * This is called to actually send a packet to the chip.
455 static void smc911x_hardware_send_pkt(struct net_device *dev)
457 struct smc911x_local *lp = netdev_priv(dev);
459 unsigned int cmdA, cmdB, len;
463 DBG(SMC_DEBUG_FUNC | SMC_DEBUG_TX, "%s: --> %s\n", dev->name, __func__);
464 BUG_ON(lp->pending_tx_skb == NULL);
466 skb = lp->pending_tx_skb;
467 lp->pending_tx_skb = NULL;
469 /* cmdA {25:24] data alignment [20:16] start offset [10:0] buffer length */
470 /* cmdB {31:16] pkt tag [10:0] length */
472 /* 16 byte buffer alignment mode */
473 buf = (char*)((u32)(skb->data) & ~0xF);
474 len = (skb->len + 0xF + ((u32)skb->data & 0xF)) & ~0xF;
475 cmdA = (1<<24) | (((u32)skb->data & 0xF)<<16) |
476 TX_CMD_A_INT_FIRST_SEG_ | TX_CMD_A_INT_LAST_SEG_ |
479 buf = (char*)((u32)skb->data & ~0x3);
480 len = (skb->len + 3 + ((u32)skb->data & 3)) & ~0x3;
481 cmdA = (((u32)skb->data & 0x3) << 16) |
482 TX_CMD_A_INT_FIRST_SEG_ | TX_CMD_A_INT_LAST_SEG_ |
485 /* tag is packet length so we can use this in stats update later */
486 cmdB = (skb->len << 16) | (skb->len & 0x7FF);
488 DBG(SMC_DEBUG_TX, "%s: TX PKT LENGTH 0x%04x (%d) BUF 0x%p CMDA 0x%08x CMDB 0x%08x\n",
489 dev->name, len, len, buf, cmdA, cmdB);
490 SMC_SET_TX_FIFO(lp, cmdA);
491 SMC_SET_TX_FIFO(lp, cmdB);
493 DBG(SMC_DEBUG_PKTS, "%s: Transmitted packet\n", dev->name);
494 PRINT_PKT(buf, len <= 64 ? len : 64);
496 /* Send pkt via PIO or DMA */
498 lp->current_tx_skb = skb;
499 SMC_PUSH_DATA(lp, buf, len);
500 /* DMA complete IRQ will free buffer and set jiffies */
502 SMC_PUSH_DATA(lp, buf, len);
503 dev->trans_start = jiffies;
506 spin_lock_irqsave(&lp->lock, flags);
507 if (!lp->tx_throttle) {
508 netif_wake_queue(dev);
510 spin_unlock_irqrestore(&lp->lock, flags);
511 SMC_ENABLE_INT(lp, INT_EN_TDFA_EN_ | INT_EN_TSFL_EN_);
515 * Since I am not sure if I will have enough room in the chip's ram
516 * to store the packet, I call this routine which either sends it
517 * now, or set the card to generates an interrupt when ready
520 static int smc911x_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
522 struct smc911x_local *lp = netdev_priv(dev);
526 DBG(SMC_DEBUG_FUNC | SMC_DEBUG_TX, "%s: --> %s\n",
527 dev->name, __func__);
529 BUG_ON(lp->pending_tx_skb != NULL);
531 free = SMC_GET_TX_FIFO_INF(lp) & TX_FIFO_INF_TDFREE_;
532 DBG(SMC_DEBUG_TX, "%s: TX free space %d\n", dev->name, free);
534 /* Turn off the flow when running out of space in FIFO */
535 if (free <= SMC911X_TX_FIFO_LOW_THRESHOLD) {
536 DBG(SMC_DEBUG_TX, "%s: Disabling data flow due to low FIFO space (%d)\n",
538 spin_lock_irqsave(&lp->lock, flags);
539 /* Reenable when at least 1 packet of size MTU present */
540 SMC_SET_FIFO_TDA(lp, (SMC911X_TX_FIFO_LOW_THRESHOLD)/64);
542 netif_stop_queue(dev);
543 spin_unlock_irqrestore(&lp->lock, flags);
546 /* Drop packets when we run out of space in TX FIFO
547 * Account for overhead required for:
549 * Tx command words 8 bytes
550 * Start offset 15 bytes
551 * End padding 15 bytes
553 if (unlikely(free < (skb->len + 8 + 15 + 15))) {
554 printk("%s: No Tx free space %d < %d\n",
555 dev->name, free, skb->len);
556 lp->pending_tx_skb = NULL;
557 dev->stats.tx_errors++;
558 dev->stats.tx_dropped++;
565 /* If the DMA is already running then defer this packet Tx until
566 * the DMA IRQ starts it
568 spin_lock_irqsave(&lp->lock, flags);
569 if (lp->txdma_active) {
570 DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, "%s: Tx DMA running, deferring packet\n", dev->name);
571 lp->pending_tx_skb = skb;
572 netif_stop_queue(dev);
573 spin_unlock_irqrestore(&lp->lock, flags);
576 DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, "%s: Activating Tx DMA\n", dev->name);
577 lp->txdma_active = 1;
579 spin_unlock_irqrestore(&lp->lock, flags);
582 lp->pending_tx_skb = skb;
583 smc911x_hardware_send_pkt(dev);
589 * This handles a TX status interrupt, which is only called when:
590 * - a TX error occurred, or
591 * - TX of a packet completed.
593 static void smc911x_tx(struct net_device *dev)
595 struct smc911x_local *lp = netdev_priv(dev);
596 unsigned int tx_status;
598 DBG(SMC_DEBUG_FUNC | SMC_DEBUG_TX, "%s: --> %s\n",
599 dev->name, __func__);
601 /* Collect the TX status */
602 while (((SMC_GET_TX_FIFO_INF(lp) & TX_FIFO_INF_TSUSED_) >> 16) != 0) {
603 DBG(SMC_DEBUG_TX, "%s: Tx stat FIFO used 0x%04x\n",
605 (SMC_GET_TX_FIFO_INF(lp) & TX_FIFO_INF_TSUSED_) >> 16);
606 tx_status = SMC_GET_TX_STS_FIFO(lp);
607 dev->stats.tx_packets++;
608 dev->stats.tx_bytes+=tx_status>>16;
609 DBG(SMC_DEBUG_TX, "%s: Tx FIFO tag 0x%04x status 0x%04x\n",
610 dev->name, (tx_status & 0xffff0000) >> 16,
611 tx_status & 0x0000ffff);
612 /* count Tx errors, but ignore lost carrier errors when in
613 * full-duplex mode */
614 if ((tx_status & TX_STS_ES_) && !(lp->ctl_rfduplx &&
615 !(tx_status & 0x00000306))) {
616 dev->stats.tx_errors++;
618 if (tx_status & TX_STS_MANY_COLL_) {
619 dev->stats.collisions+=16;
620 dev->stats.tx_aborted_errors++;
622 dev->stats.collisions+=(tx_status & TX_STS_COLL_CNT_) >> 3;
624 /* carrier error only has meaning for half-duplex communication */
625 if ((tx_status & (TX_STS_LOC_ | TX_STS_NO_CARR_)) &&
627 dev->stats.tx_carrier_errors++;
629 if (tx_status & TX_STS_LATE_COLL_) {
630 dev->stats.collisions++;
631 dev->stats.tx_aborted_errors++;
637 /*---PHY CONTROL AND CONFIGURATION-----------------------------------------*/
639 * Reads a register from the MII Management serial interface
642 static int smc911x_phy_read(struct net_device *dev, int phyaddr, int phyreg)
644 struct smc911x_local *lp = netdev_priv(dev);
645 unsigned int phydata;
647 SMC_GET_MII(lp, phyreg, phyaddr, phydata);
649 DBG(SMC_DEBUG_MISC, "%s: phyaddr=0x%x, phyreg=0x%02x, phydata=0x%04x\n",
650 __func__, phyaddr, phyreg, phydata);
656 * Writes a register to the MII Management serial interface
658 static void smc911x_phy_write(struct net_device *dev, int phyaddr, int phyreg,
661 struct smc911x_local *lp = netdev_priv(dev);
663 DBG(SMC_DEBUG_MISC, "%s: phyaddr=0x%x, phyreg=0x%x, phydata=0x%x\n",
664 __func__, phyaddr, phyreg, phydata);
666 SMC_SET_MII(lp, phyreg, phyaddr, phydata);
670 * Finds and reports the PHY address (115 and 117 have external
671 * PHY interface 118 has internal only
673 static void smc911x_phy_detect(struct net_device *dev)
675 struct smc911x_local *lp = netdev_priv(dev);
677 unsigned int cfg, id1, id2;
679 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
684 * Scan all 32 PHY addresses if necessary, starting at
685 * PHY#1 to PHY#31, and then PHY#0 last.
687 switch(lp->version) {
690 cfg = SMC_GET_HW_CFG(lp);
691 if (cfg & HW_CFG_EXT_PHY_DET_) {
692 cfg &= ~HW_CFG_PHY_CLK_SEL_;
693 cfg |= HW_CFG_PHY_CLK_SEL_CLK_DIS_;
694 SMC_SET_HW_CFG(lp, cfg);
695 udelay(10); /* Wait for clocks to stop */
697 cfg |= HW_CFG_EXT_PHY_EN_;
698 SMC_SET_HW_CFG(lp, cfg);
699 udelay(10); /* Wait for clocks to stop */
701 cfg &= ~HW_CFG_PHY_CLK_SEL_;
702 cfg |= HW_CFG_PHY_CLK_SEL_EXT_PHY_;
703 SMC_SET_HW_CFG(lp, cfg);
704 udelay(10); /* Wait for clocks to stop */
706 cfg |= HW_CFG_SMI_SEL_;
707 SMC_SET_HW_CFG(lp, cfg);
709 for (phyaddr = 1; phyaddr < 32; ++phyaddr) {
711 /* Read the PHY identifiers */
712 SMC_GET_PHY_ID1(lp, phyaddr & 31, id1);
713 SMC_GET_PHY_ID2(lp, phyaddr & 31, id2);
715 /* Make sure it is a valid identifier */
716 if (id1 != 0x0000 && id1 != 0xffff &&
717 id1 != 0x8000 && id2 != 0x0000 &&
718 id2 != 0xffff && id2 != 0x8000) {
719 /* Save the PHY's address */
720 lp->mii.phy_id = phyaddr & 31;
721 lp->phy_type = id1 << 16 | id2;
726 /* Found an external PHY */
730 /* Internal media only */
731 SMC_GET_PHY_ID1(lp, 1, id1);
732 SMC_GET_PHY_ID2(lp, 1, id2);
733 /* Save the PHY's address */
735 lp->phy_type = id1 << 16 | id2;
738 DBG(SMC_DEBUG_MISC, "%s: phy_id1=0x%x, phy_id2=0x%x phyaddr=0x%d\n",
739 dev->name, id1, id2, lp->mii.phy_id);
743 * Sets the PHY to a configuration as determined by the user.
744 * Called with spin_lock held.
746 static int smc911x_phy_fixed(struct net_device *dev)
748 struct smc911x_local *lp = netdev_priv(dev);
749 int phyaddr = lp->mii.phy_id;
752 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
754 /* Enter Link Disable state */
755 SMC_GET_PHY_BMCR(lp, phyaddr, bmcr);
757 SMC_SET_PHY_BMCR(lp, phyaddr, bmcr);
760 * Set our fixed capabilities
761 * Disable auto-negotiation
763 bmcr &= ~BMCR_ANENABLE;
765 bmcr |= BMCR_FULLDPLX;
767 if (lp->ctl_rspeed == 100)
768 bmcr |= BMCR_SPEED100;
770 /* Write our capabilities to the phy control register */
771 SMC_SET_PHY_BMCR(lp, phyaddr, bmcr);
773 /* Re-Configure the Receive/Phy Control register */
775 SMC_SET_PHY_BMCR(lp, phyaddr, bmcr);
781 * smc911x_phy_reset - reset the phy
785 * Issue a software reset for the specified PHY and
786 * wait up to 100ms for the reset to complete. We should
787 * not access the PHY for 50ms after issuing the reset.
789 * The time to wait appears to be dependent on the PHY.
792 static int smc911x_phy_reset(struct net_device *dev, int phy)
794 struct smc911x_local *lp = netdev_priv(dev);
799 DBG(SMC_DEBUG_FUNC, "%s: --> %s()\n", dev->name, __func__);
801 spin_lock_irqsave(&lp->lock, flags);
802 reg = SMC_GET_PMT_CTRL(lp);
804 reg |= PMT_CTRL_PHY_RST_;
805 SMC_SET_PMT_CTRL(lp, reg);
806 spin_unlock_irqrestore(&lp->lock, flags);
807 for (timeout = 2; timeout; timeout--) {
809 spin_lock_irqsave(&lp->lock, flags);
810 reg = SMC_GET_PMT_CTRL(lp);
811 spin_unlock_irqrestore(&lp->lock, flags);
812 if (!(reg & PMT_CTRL_PHY_RST_)) {
813 /* extra delay required because the phy may
814 * not be completed with its reset
815 * when PHY_BCR_RESET_ is cleared. 256us
816 * should suffice, but use 500us to be safe
823 return reg & PMT_CTRL_PHY_RST_;
827 * smc911x_phy_powerdown - powerdown phy
831 * Power down the specified PHY
833 static void smc911x_phy_powerdown(struct net_device *dev, int phy)
835 struct smc911x_local *lp = netdev_priv(dev);
838 /* Enter Link Disable state */
839 SMC_GET_PHY_BMCR(lp, phy, bmcr);
841 SMC_SET_PHY_BMCR(lp, phy, bmcr);
845 * smc911x_phy_check_media - check the media status and adjust BMCR
847 * @init: set true for initialisation
849 * Select duplex mode depending on negotiation state. This
850 * also updates our carrier state.
852 static void smc911x_phy_check_media(struct net_device *dev, int init)
854 struct smc911x_local *lp = netdev_priv(dev);
855 int phyaddr = lp->mii.phy_id;
856 unsigned int bmcr, cr;
858 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
860 if (mii_check_media(&lp->mii, netif_msg_link(lp), init)) {
861 /* duplex state has changed */
862 SMC_GET_PHY_BMCR(lp, phyaddr, bmcr);
863 SMC_GET_MAC_CR(lp, cr);
864 if (lp->mii.full_duplex) {
865 DBG(SMC_DEBUG_MISC, "%s: Configuring for full-duplex mode\n", dev->name);
866 bmcr |= BMCR_FULLDPLX;
867 cr |= MAC_CR_RCVOWN_;
869 DBG(SMC_DEBUG_MISC, "%s: Configuring for half-duplex mode\n", dev->name);
870 bmcr &= ~BMCR_FULLDPLX;
871 cr &= ~MAC_CR_RCVOWN_;
873 SMC_SET_PHY_BMCR(lp, phyaddr, bmcr);
874 SMC_SET_MAC_CR(lp, cr);
879 * Configures the specified PHY through the MII management interface
880 * using Autonegotiation.
881 * Calls smc911x_phy_fixed() if the user has requested a certain config.
882 * If RPC ANEG bit is set, the media selection is dependent purely on
883 * the selection by the MII (either in the MII BMCR reg or the result
884 * of autonegotiation.) If the RPC ANEG bit is cleared, the selection
885 * is controlled by the RPC SPEED and RPC DPLX bits.
887 static void smc911x_phy_configure(struct work_struct *work)
889 struct smc911x_local *lp = container_of(work, struct smc911x_local,
891 struct net_device *dev = lp->netdev;
892 int phyaddr = lp->mii.phy_id;
893 int my_phy_caps; /* My PHY capabilities */
894 int my_ad_caps; /* My Advertised capabilities */
898 DBG(SMC_DEBUG_FUNC, "%s: --> %s()\n", dev->name, __func__);
901 * We should not be called if phy_type is zero.
903 if (lp->phy_type == 0)
906 if (smc911x_phy_reset(dev, phyaddr)) {
907 printk("%s: PHY reset timed out\n", dev->name);
910 spin_lock_irqsave(&lp->lock, flags);
913 * Enable PHY Interrupts (for register 18)
914 * Interrupts listed here are enabled
916 SMC_SET_PHY_INT_MASK(lp, phyaddr, PHY_INT_MASK_ENERGY_ON_ |
917 PHY_INT_MASK_ANEG_COMP_ | PHY_INT_MASK_REMOTE_FAULT_ |
918 PHY_INT_MASK_LINK_DOWN_);
920 /* If the user requested no auto neg, then go set his request */
921 if (lp->mii.force_media) {
922 smc911x_phy_fixed(dev);
923 goto smc911x_phy_configure_exit;
926 /* Copy our capabilities from MII_BMSR to MII_ADVERTISE */
927 SMC_GET_PHY_BMSR(lp, phyaddr, my_phy_caps);
928 if (!(my_phy_caps & BMSR_ANEGCAPABLE)) {
929 printk(KERN_INFO "Auto negotiation NOT supported\n");
930 smc911x_phy_fixed(dev);
931 goto smc911x_phy_configure_exit;
934 /* CSMA capable w/ both pauses */
935 my_ad_caps = ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
937 if (my_phy_caps & BMSR_100BASE4)
938 my_ad_caps |= ADVERTISE_100BASE4;
939 if (my_phy_caps & BMSR_100FULL)
940 my_ad_caps |= ADVERTISE_100FULL;
941 if (my_phy_caps & BMSR_100HALF)
942 my_ad_caps |= ADVERTISE_100HALF;
943 if (my_phy_caps & BMSR_10FULL)
944 my_ad_caps |= ADVERTISE_10FULL;
945 if (my_phy_caps & BMSR_10HALF)
946 my_ad_caps |= ADVERTISE_10HALF;
948 /* Disable capabilities not selected by our user */
949 if (lp->ctl_rspeed != 100)
950 my_ad_caps &= ~(ADVERTISE_100BASE4|ADVERTISE_100FULL|ADVERTISE_100HALF);
952 if (!lp->ctl_rfduplx)
953 my_ad_caps &= ~(ADVERTISE_100FULL|ADVERTISE_10FULL);
955 /* Update our Auto-Neg Advertisement Register */
956 SMC_SET_PHY_MII_ADV(lp, phyaddr, my_ad_caps);
957 lp->mii.advertising = my_ad_caps;
960 * Read the register back. Without this, it appears that when
961 * auto-negotiation is restarted, sometimes it isn't ready and
962 * the link does not come up.
965 SMC_GET_PHY_MII_ADV(lp, phyaddr, status);
967 DBG(SMC_DEBUG_MISC, "%s: phy caps=0x%04x\n", dev->name, my_phy_caps);
968 DBG(SMC_DEBUG_MISC, "%s: phy advertised caps=0x%04x\n", dev->name, my_ad_caps);
970 /* Restart auto-negotiation process in order to advertise my caps */
971 SMC_SET_PHY_BMCR(lp, phyaddr, BMCR_ANENABLE | BMCR_ANRESTART);
973 smc911x_phy_check_media(dev, 1);
975 smc911x_phy_configure_exit:
976 spin_unlock_irqrestore(&lp->lock, flags);
980 * smc911x_phy_interrupt
982 * Purpose: Handle interrupts relating to PHY register 18. This is
983 * called from the "hard" interrupt handler under our private spinlock.
985 static void smc911x_phy_interrupt(struct net_device *dev)
987 struct smc911x_local *lp = netdev_priv(dev);
988 int phyaddr = lp->mii.phy_id;
991 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
993 if (lp->phy_type == 0)
996 smc911x_phy_check_media(dev, 0);
997 /* read to clear status bits */
998 SMC_GET_PHY_INT_SRC(lp, phyaddr,status);
999 DBG(SMC_DEBUG_MISC, "%s: PHY interrupt status 0x%04x\n",
1000 dev->name, status & 0xffff);
1001 DBG(SMC_DEBUG_MISC, "%s: AFC_CFG 0x%08x\n",
1002 dev->name, SMC_GET_AFC_CFG(lp));
1005 /*--- END PHY CONTROL AND CONFIGURATION-------------------------------------*/
1008 * This is the main routine of the driver, to handle the device when
1009 * it needs some attention.
1011 static irqreturn_t smc911x_interrupt(int irq, void *dev_id)
1013 struct net_device *dev = dev_id;
1014 struct smc911x_local *lp = netdev_priv(dev);
1015 unsigned int status, mask, timeout;
1016 unsigned int rx_overrun=0, cr, pkts;
1017 unsigned long flags;
1019 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1021 spin_lock_irqsave(&lp->lock, flags);
1023 /* Spurious interrupt check */
1024 if ((SMC_GET_IRQ_CFG(lp) & (INT_CFG_IRQ_INT_ | INT_CFG_IRQ_EN_)) !=
1025 (INT_CFG_IRQ_INT_ | INT_CFG_IRQ_EN_)) {
1026 spin_unlock_irqrestore(&lp->lock, flags);
1030 mask = SMC_GET_INT_EN(lp);
1031 SMC_SET_INT_EN(lp, 0);
1033 /* set a timeout value, so I don't stay here forever */
1038 status = SMC_GET_INT(lp);
1040 DBG(SMC_DEBUG_MISC, "%s: INT 0x%08x MASK 0x%08x OUTSIDE MASK 0x%08x\n",
1041 dev->name, status, mask, status & ~mask);
1047 /* Handle SW interrupt condition */
1048 if (status & INT_STS_SW_INT_) {
1049 SMC_ACK_INT(lp, INT_STS_SW_INT_);
1050 mask &= ~INT_EN_SW_INT_EN_;
1052 /* Handle various error conditions */
1053 if (status & INT_STS_RXE_) {
1054 SMC_ACK_INT(lp, INT_STS_RXE_);
1055 dev->stats.rx_errors++;
1057 if (status & INT_STS_RXDFH_INT_) {
1058 SMC_ACK_INT(lp, INT_STS_RXDFH_INT_);
1059 dev->stats.rx_dropped+=SMC_GET_RX_DROP(lp);
1061 /* Undocumented interrupt-what is the right thing to do here? */
1062 if (status & INT_STS_RXDF_INT_) {
1063 SMC_ACK_INT(lp, INT_STS_RXDF_INT_);
1066 /* Rx Data FIFO exceeds set level */
1067 if (status & INT_STS_RDFL_) {
1068 if (IS_REV_A(lp->revision)) {
1070 SMC_GET_MAC_CR(lp, cr);
1071 cr &= ~MAC_CR_RXEN_;
1072 SMC_SET_MAC_CR(lp, cr);
1073 DBG(SMC_DEBUG_RX, "%s: RX overrun\n", dev->name);
1074 dev->stats.rx_errors++;
1075 dev->stats.rx_fifo_errors++;
1077 SMC_ACK_INT(lp, INT_STS_RDFL_);
1079 if (status & INT_STS_RDFO_) {
1080 if (!IS_REV_A(lp->revision)) {
1081 SMC_GET_MAC_CR(lp, cr);
1082 cr &= ~MAC_CR_RXEN_;
1083 SMC_SET_MAC_CR(lp, cr);
1085 DBG(SMC_DEBUG_RX, "%s: RX overrun\n", dev->name);
1086 dev->stats.rx_errors++;
1087 dev->stats.rx_fifo_errors++;
1089 SMC_ACK_INT(lp, INT_STS_RDFO_);
1091 /* Handle receive condition */
1092 if ((status & INT_STS_RSFL_) || rx_overrun) {
1094 DBG(SMC_DEBUG_RX, "%s: RX irq\n", dev->name);
1095 fifo = SMC_GET_RX_FIFO_INF(lp);
1096 pkts = (fifo & RX_FIFO_INF_RXSUSED_) >> 16;
1097 DBG(SMC_DEBUG_RX, "%s: Rx FIFO pkts %d, bytes %d\n",
1098 dev->name, pkts, fifo & 0xFFFF );
1102 if (lp->rxdma_active){
1103 DBG(SMC_DEBUG_RX | SMC_DEBUG_DMA,
1104 "%s: RX DMA active\n", dev->name);
1105 /* The DMA is already running so up the IRQ threshold */
1106 fifo = SMC_GET_FIFO_INT(lp) & ~0xFF;
1107 fifo |= pkts & 0xFF;
1109 "%s: Setting RX stat FIFO threshold to %d\n",
1110 dev->name, fifo & 0xff);
1111 SMC_SET_FIFO_INT(lp, fifo);
1116 SMC_ACK_INT(lp, INT_STS_RSFL_);
1118 /* Handle transmit FIFO available */
1119 if (status & INT_STS_TDFA_) {
1120 DBG(SMC_DEBUG_TX, "%s: TX data FIFO space available irq\n", dev->name);
1121 SMC_SET_FIFO_TDA(lp, 0xFF);
1122 lp->tx_throttle = 0;
1124 if (!lp->txdma_active)
1126 netif_wake_queue(dev);
1127 SMC_ACK_INT(lp, INT_STS_TDFA_);
1129 /* Handle transmit done condition */
1131 if (status & (INT_STS_TSFL_ | INT_STS_GPT_INT_)) {
1132 DBG(SMC_DEBUG_TX | SMC_DEBUG_MISC,
1133 "%s: Tx stat FIFO limit (%d) /GPT irq\n",
1134 dev->name, (SMC_GET_FIFO_INT(lp) & 0x00ff0000) >> 16);
1136 SMC_SET_GPT_CFG(lp, GPT_CFG_TIMER_EN_ | 10000);
1137 SMC_ACK_INT(lp, INT_STS_TSFL_);
1138 SMC_ACK_INT(lp, INT_STS_TSFL_ | INT_STS_GPT_INT_);
1141 if (status & INT_STS_TSFL_) {
1142 DBG(SMC_DEBUG_TX, "%s: TX status FIFO limit (%d) irq \n", dev->name, );
1144 SMC_ACK_INT(lp, INT_STS_TSFL_);
1147 if (status & INT_STS_GPT_INT_) {
1148 DBG(SMC_DEBUG_RX, "%s: IRQ_CFG 0x%08x FIFO_INT 0x%08x RX_CFG 0x%08x\n",
1150 SMC_GET_IRQ_CFG(lp),
1151 SMC_GET_FIFO_INT(lp),
1152 SMC_GET_RX_CFG(lp));
1153 DBG(SMC_DEBUG_RX, "%s: Rx Stat FIFO Used 0x%02x "
1154 "Data FIFO Used 0x%04x Stat FIFO 0x%08x\n",
1156 (SMC_GET_RX_FIFO_INF(lp) & 0x00ff0000) >> 16,
1157 SMC_GET_RX_FIFO_INF(lp) & 0xffff,
1158 SMC_GET_RX_STS_FIFO_PEEK(lp));
1159 SMC_SET_GPT_CFG(lp, GPT_CFG_TIMER_EN_ | 10000);
1160 SMC_ACK_INT(lp, INT_STS_GPT_INT_);
1164 /* Handle PHY interrupt condition */
1165 if (status & INT_STS_PHY_INT_) {
1166 DBG(SMC_DEBUG_MISC, "%s: PHY irq\n", dev->name);
1167 smc911x_phy_interrupt(dev);
1168 SMC_ACK_INT(lp, INT_STS_PHY_INT_);
1170 } while (--timeout);
1172 /* restore mask state */
1173 SMC_SET_INT_EN(lp, mask);
1175 DBG(SMC_DEBUG_MISC, "%s: Interrupt done (%d loops)\n",
1176 dev->name, 8-timeout);
1178 spin_unlock_irqrestore(&lp->lock, flags);
1185 smc911x_tx_dma_irq(int dma, void *data)
1187 struct net_device *dev = (struct net_device *)data;
1188 struct smc911x_local *lp = netdev_priv(dev);
1189 struct sk_buff *skb = lp->current_tx_skb;
1190 unsigned long flags;
1192 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1194 DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, "%s: TX DMA irq handler\n", dev->name);
1195 /* Clear the DMA interrupt sources */
1196 SMC_DMA_ACK_IRQ(dev, dma);
1197 BUG_ON(skb == NULL);
1198 dma_unmap_single(NULL, tx_dmabuf, tx_dmalen, DMA_TO_DEVICE);
1199 dev->trans_start = jiffies;
1200 dev_kfree_skb_irq(skb);
1201 lp->current_tx_skb = NULL;
1202 if (lp->pending_tx_skb != NULL)
1203 smc911x_hardware_send_pkt(dev);
1205 DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA,
1206 "%s: No pending Tx packets. DMA disabled\n", dev->name);
1207 spin_lock_irqsave(&lp->lock, flags);
1208 lp->txdma_active = 0;
1209 if (!lp->tx_throttle) {
1210 netif_wake_queue(dev);
1212 spin_unlock_irqrestore(&lp->lock, flags);
1215 DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA,
1216 "%s: TX DMA irq completed\n", dev->name);
1219 smc911x_rx_dma_irq(int dma, void *data)
1221 struct net_device *dev = (struct net_device *)data;
1222 unsigned long ioaddr = dev->base_addr;
1223 struct smc911x_local *lp = netdev_priv(dev);
1224 struct sk_buff *skb = lp->current_rx_skb;
1225 unsigned long flags;
1228 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1229 DBG(SMC_DEBUG_RX | SMC_DEBUG_DMA, "%s: RX DMA irq handler\n", dev->name);
1230 /* Clear the DMA interrupt sources */
1231 SMC_DMA_ACK_IRQ(dev, dma);
1232 dma_unmap_single(NULL, rx_dmabuf, rx_dmalen, DMA_FROM_DEVICE);
1233 BUG_ON(skb == NULL);
1234 lp->current_rx_skb = NULL;
1235 PRINT_PKT(skb->data, skb->len);
1236 dev->last_rx = jiffies;
1237 skb->protocol = eth_type_trans(skb, dev);
1238 dev->stats.rx_packets++;
1239 dev->stats.rx_bytes += skb->len;
1242 spin_lock_irqsave(&lp->lock, flags);
1243 pkts = (SMC_GET_RX_FIFO_INF() & RX_FIFO_INF_RXSUSED_) >> 16;
1247 lp->rxdma_active = 0;
1249 spin_unlock_irqrestore(&lp->lock, flags);
1250 DBG(SMC_DEBUG_RX | SMC_DEBUG_DMA,
1251 "%s: RX DMA irq completed. DMA RX FIFO PKTS %d\n",
1254 #endif /* SMC_USE_DMA */
1256 #ifdef CONFIG_NET_POLL_CONTROLLER
1258 * Polling receive - used by netconsole and other diagnostic tools
1259 * to allow network i/o with interrupts disabled.
1261 static void smc911x_poll_controller(struct net_device *dev)
1263 disable_irq(dev->irq);
1264 smc911x_interrupt(dev->irq, dev);
1265 enable_irq(dev->irq);
1269 /* Our watchdog timed out. Called by the networking layer */
1270 static void smc911x_timeout(struct net_device *dev)
1272 struct smc911x_local *lp = netdev_priv(dev);
1274 unsigned long flags;
1276 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1278 spin_lock_irqsave(&lp->lock, flags);
1279 status = SMC_GET_INT(lp);
1280 mask = SMC_GET_INT_EN(lp);
1281 spin_unlock_irqrestore(&lp->lock, flags);
1282 DBG(SMC_DEBUG_MISC, "%s: INT 0x%02x MASK 0x%02x \n",
1283 dev->name, status, mask);
1285 /* Dump the current TX FIFO contents and restart */
1286 mask = SMC_GET_TX_CFG(lp);
1287 SMC_SET_TX_CFG(lp, mask | TX_CFG_TXS_DUMP_ | TX_CFG_TXD_DUMP_);
1289 * Reconfiguring the PHY doesn't seem like a bad idea here, but
1290 * smc911x_phy_configure() calls msleep() which calls schedule_timeout()
1291 * which calls schedule(). Hence we use a work queue.
1293 if (lp->phy_type != 0)
1294 schedule_work(&lp->phy_configure);
1296 /* We can accept TX packets again */
1297 dev->trans_start = jiffies;
1298 netif_wake_queue(dev);
1302 * This routine will, depending on the values passed to it,
1303 * either make it accept multicast packets, go into
1304 * promiscuous mode (for TCPDUMP and cousins) or accept
1305 * a select set of multicast packets
1307 static void smc911x_set_multicast_list(struct net_device *dev)
1309 struct smc911x_local *lp = netdev_priv(dev);
1310 unsigned int multicast_table[2];
1311 unsigned int mcr, update_multicast = 0;
1312 unsigned long flags;
1314 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1316 spin_lock_irqsave(&lp->lock, flags);
1317 SMC_GET_MAC_CR(lp, mcr);
1318 spin_unlock_irqrestore(&lp->lock, flags);
1320 if (dev->flags & IFF_PROMISC) {
1322 DBG(SMC_DEBUG_MISC, "%s: RCR_PRMS\n", dev->name);
1323 mcr |= MAC_CR_PRMS_;
1326 * Here, I am setting this to accept all multicast packets.
1327 * I don't need to zero the multicast table, because the flag is
1328 * checked before the table is
1330 else if (dev->flags & IFF_ALLMULTI || dev->mc_count > 16) {
1331 DBG(SMC_DEBUG_MISC, "%s: RCR_ALMUL\n", dev->name);
1332 mcr |= MAC_CR_MCPAS_;
1336 * This sets the internal hardware table to filter out unwanted
1337 * multicast packets before they take up memory.
1339 * The SMC chip uses a hash table where the high 6 bits of the CRC of
1340 * address are the offset into the table. If that bit is 1, then the
1341 * multicast packet is accepted. Otherwise, it's dropped silently.
1343 * To use the 6 bits as an offset into the table, the high 1 bit is
1344 * the number of the 32 bit register, while the low 5 bits are the bit
1345 * within that register.
1347 else if (dev->mc_count) {
1349 struct dev_mc_list *cur_addr;
1351 /* Set the Hash perfec mode */
1352 mcr |= MAC_CR_HPFILT_;
1354 /* start with a table of all zeros: reject all */
1355 memset(multicast_table, 0, sizeof(multicast_table));
1357 cur_addr = dev->mc_list;
1358 for (i = 0; i < dev->mc_count; i++, cur_addr = cur_addr->next) {
1361 /* do we have a pointer here? */
1364 /* make sure this is a multicast address -
1365 shouldn't this be a given if we have it here ? */
1366 if (!(*cur_addr->dmi_addr & 1))
1369 /* upper 6 bits are used as hash index */
1370 position = ether_crc(ETH_ALEN, cur_addr->dmi_addr)>>26;
1372 multicast_table[position>>5] |= 1 << (position&0x1f);
1375 /* be sure I get rid of flags I might have set */
1376 mcr &= ~(MAC_CR_PRMS_ | MAC_CR_MCPAS_);
1378 /* now, the table can be loaded into the chipset */
1379 update_multicast = 1;
1381 DBG(SMC_DEBUG_MISC, "%s: ~(MAC_CR_PRMS_|MAC_CR_MCPAS_)\n",
1383 mcr &= ~(MAC_CR_PRMS_ | MAC_CR_MCPAS_);
1386 * since I'm disabling all multicast entirely, I need to
1387 * clear the multicast list
1389 memset(multicast_table, 0, sizeof(multicast_table));
1390 update_multicast = 1;
1393 spin_lock_irqsave(&lp->lock, flags);
1394 SMC_SET_MAC_CR(lp, mcr);
1395 if (update_multicast) {
1397 "%s: update mcast hash table 0x%08x 0x%08x\n",
1398 dev->name, multicast_table[0], multicast_table[1]);
1399 SMC_SET_HASHL(lp, multicast_table[0]);
1400 SMC_SET_HASHH(lp, multicast_table[1]);
1402 spin_unlock_irqrestore(&lp->lock, flags);
1407 * Open and Initialize the board
1409 * Set up everything, reset the card, etc..
1412 smc911x_open(struct net_device *dev)
1414 struct smc911x_local *lp = netdev_priv(dev);
1416 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1419 * Check that the address is valid. If its not, refuse
1420 * to bring the device up. The user must specify an
1421 * address using ifconfig eth0 hw ether xx:xx:xx:xx:xx:xx
1423 if (!is_valid_ether_addr(dev->dev_addr)) {
1424 PRINTK("%s: no valid ethernet hw addr\n", __func__);
1428 /* reset the hardware */
1431 /* Configure the PHY, initialize the link state */
1432 smc911x_phy_configure(&lp->phy_configure);
1434 /* Turn on Tx + Rx */
1435 smc911x_enable(dev);
1437 netif_start_queue(dev);
1445 * this makes the board clean up everything that it can
1446 * and not talk to the outside world. Caused by
1447 * an 'ifconfig ethX down'
1449 static int smc911x_close(struct net_device *dev)
1451 struct smc911x_local *lp = netdev_priv(dev);
1453 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1455 netif_stop_queue(dev);
1456 netif_carrier_off(dev);
1458 /* clear everything */
1459 smc911x_shutdown(dev);
1461 if (lp->phy_type != 0) {
1462 /* We need to ensure that no calls to
1463 * smc911x_phy_configure are pending.
1465 cancel_work_sync(&lp->phy_configure);
1466 smc911x_phy_powerdown(dev, lp->mii.phy_id);
1469 if (lp->pending_tx_skb) {
1470 dev_kfree_skb(lp->pending_tx_skb);
1471 lp->pending_tx_skb = NULL;
1481 smc911x_ethtool_getsettings(struct net_device *dev, struct ethtool_cmd *cmd)
1483 struct smc911x_local *lp = netdev_priv(dev);
1485 unsigned long flags;
1487 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1491 if (lp->phy_type != 0) {
1492 spin_lock_irqsave(&lp->lock, flags);
1493 ret = mii_ethtool_gset(&lp->mii, cmd);
1494 spin_unlock_irqrestore(&lp->lock, flags);
1496 cmd->supported = SUPPORTED_10baseT_Half |
1497 SUPPORTED_10baseT_Full |
1498 SUPPORTED_TP | SUPPORTED_AUI;
1500 if (lp->ctl_rspeed == 10)
1501 cmd->speed = SPEED_10;
1502 else if (lp->ctl_rspeed == 100)
1503 cmd->speed = SPEED_100;
1505 cmd->autoneg = AUTONEG_DISABLE;
1506 if (lp->mii.phy_id==1)
1507 cmd->transceiver = XCVR_INTERNAL;
1509 cmd->transceiver = XCVR_EXTERNAL;
1511 SMC_GET_PHY_SPECIAL(lp, lp->mii.phy_id, status);
1513 (status & (PHY_SPECIAL_SPD_10FULL_ | PHY_SPECIAL_SPD_100FULL_)) ?
1514 DUPLEX_FULL : DUPLEX_HALF;
1522 smc911x_ethtool_setsettings(struct net_device *dev, struct ethtool_cmd *cmd)
1524 struct smc911x_local *lp = netdev_priv(dev);
1526 unsigned long flags;
1528 if (lp->phy_type != 0) {
1529 spin_lock_irqsave(&lp->lock, flags);
1530 ret = mii_ethtool_sset(&lp->mii, cmd);
1531 spin_unlock_irqrestore(&lp->lock, flags);
1533 if (cmd->autoneg != AUTONEG_DISABLE ||
1534 cmd->speed != SPEED_10 ||
1535 (cmd->duplex != DUPLEX_HALF && cmd->duplex != DUPLEX_FULL) ||
1536 (cmd->port != PORT_TP && cmd->port != PORT_AUI))
1539 lp->ctl_rfduplx = cmd->duplex == DUPLEX_FULL;
1548 smc911x_ethtool_getdrvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1550 strncpy(info->driver, CARDNAME, sizeof(info->driver));
1551 strncpy(info->version, version, sizeof(info->version));
1552 strncpy(info->bus_info, dev->dev.parent->bus_id, sizeof(info->bus_info));
1555 static int smc911x_ethtool_nwayreset(struct net_device *dev)
1557 struct smc911x_local *lp = netdev_priv(dev);
1559 unsigned long flags;
1561 if (lp->phy_type != 0) {
1562 spin_lock_irqsave(&lp->lock, flags);
1563 ret = mii_nway_restart(&lp->mii);
1564 spin_unlock_irqrestore(&lp->lock, flags);
1570 static u32 smc911x_ethtool_getmsglevel(struct net_device *dev)
1572 struct smc911x_local *lp = netdev_priv(dev);
1573 return lp->msg_enable;
1576 static void smc911x_ethtool_setmsglevel(struct net_device *dev, u32 level)
1578 struct smc911x_local *lp = netdev_priv(dev);
1579 lp->msg_enable = level;
1582 static int smc911x_ethtool_getregslen(struct net_device *dev)
1584 /* System regs + MAC regs + PHY regs */
1585 return (((E2P_CMD - ID_REV)/4 + 1) +
1586 (WUCSR - MAC_CR)+1 + 32) * sizeof(u32);
1589 static void smc911x_ethtool_getregs(struct net_device *dev,
1590 struct ethtool_regs* regs, void *buf)
1592 struct smc911x_local *lp = netdev_priv(dev);
1593 unsigned long flags;
1595 u32 *data = (u32*)buf;
1597 regs->version = lp->version;
1598 for(i=ID_REV;i<=E2P_CMD;i+=4) {
1599 data[j++] = SMC_inl(lp, i);
1601 for(i=MAC_CR;i<=WUCSR;i++) {
1602 spin_lock_irqsave(&lp->lock, flags);
1603 SMC_GET_MAC_CSR(lp, i, reg);
1604 spin_unlock_irqrestore(&lp->lock, flags);
1607 for(i=0;i<=31;i++) {
1608 spin_lock_irqsave(&lp->lock, flags);
1609 SMC_GET_MII(lp, i, lp->mii.phy_id, reg);
1610 spin_unlock_irqrestore(&lp->lock, flags);
1611 data[j++] = reg & 0xFFFF;
1615 static int smc911x_ethtool_wait_eeprom_ready(struct net_device *dev)
1617 struct smc911x_local *lp = netdev_priv(dev);
1618 unsigned int timeout;
1621 e2p_cmd = SMC_GET_E2P_CMD(lp);
1622 for(timeout=10;(e2p_cmd & E2P_CMD_EPC_BUSY_) && timeout; timeout--) {
1623 if (e2p_cmd & E2P_CMD_EPC_TIMEOUT_) {
1624 PRINTK("%s: %s timeout waiting for EEPROM to respond\n",
1625 dev->name, __func__);
1629 e2p_cmd = SMC_GET_E2P_CMD(lp);
1632 PRINTK("%s: %s timeout waiting for EEPROM CMD not busy\n",
1633 dev->name, __func__);
1639 static inline int smc911x_ethtool_write_eeprom_cmd(struct net_device *dev,
1642 struct smc911x_local *lp = netdev_priv(dev);
1645 if ((ret = smc911x_ethtool_wait_eeprom_ready(dev))!=0)
1647 SMC_SET_E2P_CMD(lp, E2P_CMD_EPC_BUSY_ |
1648 ((cmd) & (0x7<<28)) |
1653 static inline int smc911x_ethtool_read_eeprom_byte(struct net_device *dev,
1656 struct smc911x_local *lp = netdev_priv(dev);
1659 if ((ret = smc911x_ethtool_wait_eeprom_ready(dev))!=0)
1661 *data = SMC_GET_E2P_DATA(lp);
1665 static inline int smc911x_ethtool_write_eeprom_byte(struct net_device *dev,
1668 struct smc911x_local *lp = netdev_priv(dev);
1671 if ((ret = smc911x_ethtool_wait_eeprom_ready(dev))!=0)
1673 SMC_SET_E2P_DATA(lp, data);
1677 static int smc911x_ethtool_geteeprom(struct net_device *dev,
1678 struct ethtool_eeprom *eeprom, u8 *data)
1680 u8 eebuf[SMC911X_EEPROM_LEN];
1683 for(i=0;i<SMC911X_EEPROM_LEN;i++) {
1684 if ((ret=smc911x_ethtool_write_eeprom_cmd(dev, E2P_CMD_EPC_CMD_READ_, i ))!=0)
1686 if ((ret=smc911x_ethtool_read_eeprom_byte(dev, &eebuf[i]))!=0)
1689 memcpy(data, eebuf+eeprom->offset, eeprom->len);
1693 static int smc911x_ethtool_seteeprom(struct net_device *dev,
1694 struct ethtool_eeprom *eeprom, u8 *data)
1699 if ((ret=smc911x_ethtool_write_eeprom_cmd(dev, E2P_CMD_EPC_CMD_EWEN_, 0 ))!=0)
1701 for(i=eeprom->offset;i<(eeprom->offset+eeprom->len);i++) {
1703 if ((ret=smc911x_ethtool_write_eeprom_cmd(dev, E2P_CMD_EPC_CMD_ERASE_, i ))!=0)
1706 if ((ret=smc911x_ethtool_write_eeprom_byte(dev, *data))!=0)
1708 if ((ret=smc911x_ethtool_write_eeprom_cmd(dev, E2P_CMD_EPC_CMD_WRITE_, i ))!=0)
1714 static int smc911x_ethtool_geteeprom_len(struct net_device *dev)
1716 return SMC911X_EEPROM_LEN;
1719 static const struct ethtool_ops smc911x_ethtool_ops = {
1720 .get_settings = smc911x_ethtool_getsettings,
1721 .set_settings = smc911x_ethtool_setsettings,
1722 .get_drvinfo = smc911x_ethtool_getdrvinfo,
1723 .get_msglevel = smc911x_ethtool_getmsglevel,
1724 .set_msglevel = smc911x_ethtool_setmsglevel,
1725 .nway_reset = smc911x_ethtool_nwayreset,
1726 .get_link = ethtool_op_get_link,
1727 .get_regs_len = smc911x_ethtool_getregslen,
1728 .get_regs = smc911x_ethtool_getregs,
1729 .get_eeprom_len = smc911x_ethtool_geteeprom_len,
1730 .get_eeprom = smc911x_ethtool_geteeprom,
1731 .set_eeprom = smc911x_ethtool_seteeprom,
1737 * This routine has a simple purpose -- make the SMC chip generate an
1738 * interrupt, so an auto-detect routine can detect it, and find the IRQ,
1740 static int __init smc911x_findirq(struct net_device *dev)
1742 struct smc911x_local *lp = netdev_priv(dev);
1744 unsigned long cookie;
1746 DBG(SMC_DEBUG_FUNC, "--> %s\n", __func__);
1748 cookie = probe_irq_on();
1751 * Force a SW interrupt
1754 SMC_SET_INT_EN(lp, INT_EN_SW_INT_EN_);
1757 * Wait until positive that the interrupt has been generated
1762 int_status = SMC_GET_INT_EN(lp);
1763 if (int_status & INT_EN_SW_INT_EN_)
1764 break; /* got the interrupt */
1765 } while (--timeout);
1768 * there is really nothing that I can do here if timeout fails,
1769 * as autoirq_report will return a 0 anyway, which is what I
1770 * want in this case. Plus, the clean up is needed in both
1774 /* and disable all interrupts again */
1775 SMC_SET_INT_EN(lp, 0);
1777 /* and return what I found */
1778 return probe_irq_off(cookie);
1782 * Function: smc911x_probe(unsigned long ioaddr)
1785 * Tests to see if a given ioaddr points to an SMC911x chip.
1786 * Returns a 0 on success
1789 * (1) see if the endian word is OK
1790 * (1) see if I recognize the chip ID in the appropriate register
1792 * Here I do typical initialization tasks.
1794 * o Initialize the structure if needed
1795 * o print out my vanity message if not done so already
1796 * o print out what type of hardware is detected
1797 * o print out the ethernet address
1799 * o set up my private data
1800 * o configure the dev structure with my subroutines
1801 * o actually GRAB the irq.
1804 static int __init smc911x_probe(struct net_device *dev)
1806 struct smc911x_local *lp = netdev_priv(dev);
1808 unsigned int val, chip_id, revision;
1809 const char *version_string;
1810 unsigned long irq_flags;
1812 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1814 /* First, see if the endian word is recognized */
1815 val = SMC_GET_BYTE_TEST(lp);
1816 DBG(SMC_DEBUG_MISC, "%s: endian probe returned 0x%04x\n", CARDNAME, val);
1817 if (val != 0x87654321) {
1818 printk(KERN_ERR "Invalid chip endian 0x08%x\n",val);
1824 * check if the revision register is something that I
1825 * recognize. These might need to be added to later,
1826 * as future revisions could be added.
1828 chip_id = SMC_GET_PN(lp);
1829 DBG(SMC_DEBUG_MISC, "%s: id probe returned 0x%04x\n", CARDNAME, chip_id);
1830 for(i=0;chip_ids[i].id != 0; i++) {
1831 if (chip_ids[i].id == chip_id) break;
1833 if (!chip_ids[i].id) {
1834 printk(KERN_ERR "Unknown chip ID %04x\n", chip_id);
1838 version_string = chip_ids[i].name;
1840 revision = SMC_GET_REV(lp);
1841 DBG(SMC_DEBUG_MISC, "%s: revision = 0x%04x\n", CARDNAME, revision);
1843 /* At this point I'll assume that the chip is an SMC911x. */
1844 DBG(SMC_DEBUG_MISC, "%s: Found a %s\n", CARDNAME, chip_ids[i].name);
1846 /* Validate the TX FIFO size requested */
1847 if ((tx_fifo_kb < 2) || (tx_fifo_kb > 14)) {
1848 printk(KERN_ERR "Invalid TX FIFO size requested %d\n", tx_fifo_kb);
1853 /* fill in some of the fields */
1854 lp->version = chip_ids[i].id;
1855 lp->revision = revision;
1856 lp->tx_fifo_kb = tx_fifo_kb;
1857 /* Reverse calculate the RX FIFO size from the TX */
1858 lp->tx_fifo_size=(lp->tx_fifo_kb<<10) - 512;
1859 lp->rx_fifo_size= ((0x4000 - 512 - lp->tx_fifo_size) / 16) * 15;
1861 /* Set the automatic flow control values */
1862 switch(lp->tx_fifo_kb) {
1864 * AFC_HI is about ((Rx Data Fifo Size)*2/3)/64
1865 * AFC_LO is AFC_HI/2
1866 * BACK_DUR is about 5uS*(AFC_LO) rounded down
1868 case 2:/* 13440 Rx Data Fifo Size */
1869 lp->afc_cfg=0x008C46AF;break;
1870 case 3:/* 12480 Rx Data Fifo Size */
1871 lp->afc_cfg=0x0082419F;break;
1872 case 4:/* 11520 Rx Data Fifo Size */
1873 lp->afc_cfg=0x00783C9F;break;
1874 case 5:/* 10560 Rx Data Fifo Size */
1875 lp->afc_cfg=0x006E374F;break;
1876 case 6:/* 9600 Rx Data Fifo Size */
1877 lp->afc_cfg=0x0064328F;break;
1878 case 7:/* 8640 Rx Data Fifo Size */
1879 lp->afc_cfg=0x005A2D7F;break;
1880 case 8:/* 7680 Rx Data Fifo Size */
1881 lp->afc_cfg=0x0050287F;break;
1882 case 9:/* 6720 Rx Data Fifo Size */
1883 lp->afc_cfg=0x0046236F;break;
1884 case 10:/* 5760 Rx Data Fifo Size */
1885 lp->afc_cfg=0x003C1E6F;break;
1886 case 11:/* 4800 Rx Data Fifo Size */
1887 lp->afc_cfg=0x0032195F;break;
1889 * AFC_HI is ~1520 bytes less than RX Data Fifo Size
1890 * AFC_LO is AFC_HI/2
1891 * BACK_DUR is about 5uS*(AFC_LO) rounded down
1893 case 12:/* 3840 Rx Data Fifo Size */
1894 lp->afc_cfg=0x0024124F;break;
1895 case 13:/* 2880 Rx Data Fifo Size */
1896 lp->afc_cfg=0x0015073F;break;
1897 case 14:/* 1920 Rx Data Fifo Size */
1898 lp->afc_cfg=0x0006032F;break;
1900 PRINTK("%s: ERROR -- no AFC_CFG setting found",
1905 DBG(SMC_DEBUG_MISC | SMC_DEBUG_TX | SMC_DEBUG_RX,
1906 "%s: tx_fifo %d rx_fifo %d afc_cfg 0x%08x\n", CARDNAME,
1907 lp->tx_fifo_size, lp->rx_fifo_size, lp->afc_cfg);
1909 spin_lock_init(&lp->lock);
1911 /* Get the MAC address */
1912 SMC_GET_MAC_ADDR(lp, dev->dev_addr);
1914 /* now, reset the chip, and put it into a known state */
1918 * If dev->irq is 0, then the device has to be banged on to see
1921 * Specifying an IRQ is done with the assumption that the user knows
1922 * what (s)he is doing. No checking is done!!!!
1929 dev->irq = smc911x_findirq(dev);
1932 /* kick the card and try again */
1936 if (dev->irq == 0) {
1937 printk("%s: Couldn't autodetect your IRQ. Use irq=xx.\n",
1942 dev->irq = irq_canonicalize(dev->irq);
1944 /* Fill in the fields of the device structure with ethernet values. */
1947 dev->open = smc911x_open;
1948 dev->stop = smc911x_close;
1949 dev->hard_start_xmit = smc911x_hard_start_xmit;
1950 dev->tx_timeout = smc911x_timeout;
1951 dev->watchdog_timeo = msecs_to_jiffies(watchdog);
1952 dev->set_multicast_list = smc911x_set_multicast_list;
1953 dev->ethtool_ops = &smc911x_ethtool_ops;
1954 #ifdef CONFIG_NET_POLL_CONTROLLER
1955 dev->poll_controller = smc911x_poll_controller;
1958 INIT_WORK(&lp->phy_configure, smc911x_phy_configure);
1959 lp->mii.phy_id_mask = 0x1f;
1960 lp->mii.reg_num_mask = 0x1f;
1961 lp->mii.force_media = 0;
1962 lp->mii.full_duplex = 0;
1964 lp->mii.mdio_read = smc911x_phy_read;
1965 lp->mii.mdio_write = smc911x_phy_write;
1968 * Locate the phy, if any.
1970 smc911x_phy_detect(dev);
1972 /* Set default parameters */
1973 lp->msg_enable = NETIF_MSG_LINK;
1974 lp->ctl_rfduplx = 1;
1975 lp->ctl_rspeed = 100;
1977 #ifdef SMC_DYNAMIC_BUS_CONFIG
1978 irq_flags = lp->cfg.irq_flags;
1980 irq_flags = IRQF_SHARED | SMC_IRQ_SENSE;
1984 retval = request_irq(dev->irq, &smc911x_interrupt,
1985 irq_flags, dev->name, dev);
1990 lp->rxdma = SMC_DMA_REQUEST(dev, smc911x_rx_dma_irq);
1991 lp->txdma = SMC_DMA_REQUEST(dev, smc911x_tx_dma_irq);
1992 lp->rxdma_active = 0;
1993 lp->txdma_active = 0;
1994 dev->dma = lp->rxdma;
1997 retval = register_netdev(dev);
1999 /* now, print out the card info, in a short format.. */
2000 printk("%s: %s (rev %d) at %#lx IRQ %d",
2001 dev->name, version_string, lp->revision,
2002 dev->base_addr, dev->irq);
2005 if (lp->rxdma != -1)
2006 printk(" RXDMA %d ", lp->rxdma);
2008 if (lp->txdma != -1)
2009 printk("TXDMA %d", lp->txdma);
2012 if (!is_valid_ether_addr(dev->dev_addr)) {
2013 printk("%s: Invalid ethernet MAC address. Please "
2014 "set using ifconfig\n", dev->name);
2016 /* Print the Ethernet address */
2017 printk("%s: Ethernet addr: ", dev->name);
2018 for (i = 0; i < 5; i++)
2019 printk("%2.2x:", dev->dev_addr[i]);
2020 printk("%2.2x\n", dev->dev_addr[5]);
2023 if (lp->phy_type == 0) {
2024 PRINTK("%s: No PHY found\n", dev->name);
2025 } else if ((lp->phy_type & ~0xff) == LAN911X_INTERNAL_PHY_ID) {
2026 PRINTK("%s: LAN911x Internal PHY\n", dev->name);
2028 PRINTK("%s: External PHY 0x%08x\n", dev->name, lp->phy_type);
2035 if (lp->rxdma != -1) {
2036 SMC_DMA_FREE(dev, lp->rxdma);
2038 if (lp->txdma != -1) {
2039 SMC_DMA_FREE(dev, lp->txdma);
2047 * smc911x_init(void)
2050 * 0 --> there is a device
2051 * anything else, error
2053 static int smc911x_drv_probe(struct platform_device *pdev)
2055 struct smc91x_platdata *pd = pdev->dev.platform_data;
2056 struct net_device *ndev;
2057 struct resource *res;
2058 struct smc911x_local *lp;
2062 DBG(SMC_DEBUG_FUNC, "--> %s\n", __func__);
2063 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2070 * Request the regions.
2072 if (!request_mem_region(res->start, SMC911X_IO_EXTENT, CARDNAME)) {
2077 ndev = alloc_etherdev(sizeof(struct smc911x_local));
2079 printk("%s: could not allocate device.\n", CARDNAME);
2083 SET_NETDEV_DEV(ndev, &pdev->dev);
2085 ndev->dma = (unsigned char)-1;
2086 ndev->irq = platform_get_irq(pdev, 0);
2087 lp = netdev_priv(ndev);
2089 #ifdef SMC_DYNAMIC_BUS_CONFIG
2094 memcpy(&lp->cfg, pd, sizeof(lp->cfg));
2097 addr = ioremap(res->start, SMC911X_IO_EXTENT);
2103 platform_set_drvdata(pdev, ndev);
2105 ndev->base_addr = res->start;
2106 ret = smc911x_probe(ndev);
2108 platform_set_drvdata(pdev, NULL);
2113 release_mem_region(res->start, SMC911X_IO_EXTENT);
2115 printk("%s: not found (%d).\n", CARDNAME, ret);
2119 lp->physaddr = res->start;
2120 lp->dev = &pdev->dev;
2127 static int smc911x_drv_remove(struct platform_device *pdev)
2129 struct net_device *ndev = platform_get_drvdata(pdev);
2130 struct smc911x_local *lp = netdev_priv(ndev);
2131 struct resource *res;
2133 DBG(SMC_DEBUG_FUNC, "--> %s\n", __func__);
2134 platform_set_drvdata(pdev, NULL);
2136 unregister_netdev(ndev);
2138 free_irq(ndev->irq, ndev);
2142 if (lp->rxdma != -1) {
2143 SMC_DMA_FREE(dev, lp->rxdma);
2145 if (lp->txdma != -1) {
2146 SMC_DMA_FREE(dev, lp->txdma);
2151 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2152 release_mem_region(res->start, SMC911X_IO_EXTENT);
2158 static int smc911x_drv_suspend(struct platform_device *dev, pm_message_t state)
2160 struct net_device *ndev = platform_get_drvdata(dev);
2161 struct smc911x_local *lp = netdev_priv(ndev);
2163 DBG(SMC_DEBUG_FUNC, "--> %s\n", __func__);
2165 if (netif_running(ndev)) {
2166 netif_device_detach(ndev);
2167 smc911x_shutdown(ndev);
2169 /* Set D2 - Energy detect only setting */
2170 SMC_SET_PMT_CTRL(lp, 2<<12);
2177 static int smc911x_drv_resume(struct platform_device *dev)
2179 struct net_device *ndev = platform_get_drvdata(dev);
2181 DBG(SMC_DEBUG_FUNC, "--> %s\n", __func__);
2183 struct smc911x_local *lp = netdev_priv(ndev);
2185 if (netif_running(ndev)) {
2186 smc911x_reset(ndev);
2187 smc911x_enable(ndev);
2188 if (lp->phy_type != 0)
2189 smc911x_phy_configure(&lp->phy_configure);
2190 netif_device_attach(ndev);
2196 static struct platform_driver smc911x_driver = {
2197 .probe = smc911x_drv_probe,
2198 .remove = smc911x_drv_remove,
2199 .suspend = smc911x_drv_suspend,
2200 .resume = smc911x_drv_resume,
2203 .owner = THIS_MODULE,
2207 static int __init smc911x_init(void)
2209 return platform_driver_register(&smc911x_driver);
2212 static void __exit smc911x_cleanup(void)
2214 platform_driver_unregister(&smc911x_driver);
2217 module_init(smc911x_init);
2218 module_exit(smc911x_cleanup);