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, see <http://www.gnu.org/licenses/>.
23 * watchdog = TX watchdog timeout
24 * tx_fifo_kb = Size of TX FIFO in KB
27 * 04/16/05 Dustin McIntire Initial version
29 static const char version[] =
30 "smc911x.c: v1.0 04-16-2005 by Dustin McIntire <dustin@sensoria.com>\n";
32 /* Debugging options */
33 #define ENABLE_SMC_DEBUG_RX 0
34 #define ENABLE_SMC_DEBUG_TX 0
35 #define ENABLE_SMC_DEBUG_DMA 0
36 #define ENABLE_SMC_DEBUG_PKTS 0
37 #define ENABLE_SMC_DEBUG_MISC 0
38 #define ENABLE_SMC_DEBUG_FUNC 0
40 #define SMC_DEBUG_RX ((ENABLE_SMC_DEBUG_RX ? 1 : 0) << 0)
41 #define SMC_DEBUG_TX ((ENABLE_SMC_DEBUG_TX ? 1 : 0) << 1)
42 #define SMC_DEBUG_DMA ((ENABLE_SMC_DEBUG_DMA ? 1 : 0) << 2)
43 #define SMC_DEBUG_PKTS ((ENABLE_SMC_DEBUG_PKTS ? 1 : 0) << 3)
44 #define SMC_DEBUG_MISC ((ENABLE_SMC_DEBUG_MISC ? 1 : 0) << 4)
45 #define SMC_DEBUG_FUNC ((ENABLE_SMC_DEBUG_FUNC ? 1 : 0) << 5)
48 #define SMC_DEBUG ( SMC_DEBUG_RX | \
57 #include <linux/module.h>
58 #include <linux/kernel.h>
59 #include <linux/sched.h>
60 #include <linux/delay.h>
61 #include <linux/interrupt.h>
62 #include <linux/errno.h>
63 #include <linux/ioport.h>
64 #include <linux/crc32.h>
65 #include <linux/device.h>
66 #include <linux/platform_device.h>
67 #include <linux/spinlock.h>
68 #include <linux/ethtool.h>
69 #include <linux/mii.h>
70 #include <linux/workqueue.h>
72 #include <linux/netdevice.h>
73 #include <linux/etherdevice.h>
74 #include <linux/skbuff.h>
81 * Transmit timeout, default 5 seconds.
83 static int watchdog = 5000;
84 module_param(watchdog, int, 0400);
85 MODULE_PARM_DESC(watchdog, "transmit timeout in milliseconds");
87 static int tx_fifo_kb=8;
88 module_param(tx_fifo_kb, int, 0400);
89 MODULE_PARM_DESC(tx_fifo_kb,"transmit FIFO size in KB (1<x<15)(default=8)");
91 MODULE_LICENSE("GPL");
92 MODULE_ALIAS("platform:smc911x");
95 * The internal workings of the driver. If you are changing anything
96 * here with the SMC stuff, you should have the datasheet and know
99 #define CARDNAME "smc911x"
102 * Use power-down feature of the chip
107 #define DBG(n, dev, args...) \
109 if (SMC_DEBUG & (n)) \
110 netdev_dbg(dev, args); \
113 #define PRINTK(dev, args...) netdev_info(dev, args)
115 #define DBG(n, dev, args...) do { } while (0)
116 #define PRINTK(dev, args...) netdev_dbg(dev, args)
119 #if SMC_DEBUG_PKTS > 0
120 static void PRINT_PKT(u_char *buf, int length)
127 remainder = length % 16;
129 for (i = 0; i < lines ; i ++) {
132 for (cur = 0; cur < 8; cur++) {
136 pr_cont("%02x%02x ", a, b);
141 for (i = 0; i < remainder/2 ; i++) {
145 pr_cont("%02x%02x ", a, b);
150 #define PRINT_PKT(x...) do { } while (0)
154 /* this enables an interrupt in the interrupt mask register */
155 #define SMC_ENABLE_INT(lp, x) do { \
156 unsigned int __mask; \
157 __mask = SMC_GET_INT_EN((lp)); \
159 SMC_SET_INT_EN((lp), __mask); \
162 /* this disables an interrupt from the interrupt mask register */
163 #define SMC_DISABLE_INT(lp, x) do { \
164 unsigned int __mask; \
165 __mask = SMC_GET_INT_EN((lp)); \
167 SMC_SET_INT_EN((lp), __mask); \
171 * this does a soft reset on the device
173 static void smc911x_reset(struct net_device *dev)
175 struct smc911x_local *lp = netdev_priv(dev);
176 unsigned int reg, timeout=0, resets=1, irq_cfg;
179 DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
181 /* Take out of PM setting first */
182 if ((SMC_GET_PMT_CTRL(lp) & PMT_CTRL_READY_) == 0) {
183 /* Write to the bytetest will take out of powerdown */
184 SMC_SET_BYTE_TEST(lp, 0);
188 reg = SMC_GET_PMT_CTRL(lp) & PMT_CTRL_READY_;
189 } while (--timeout && !reg);
191 PRINTK(dev, "smc911x_reset timeout waiting for PM restore\n");
196 /* Disable all interrupts */
197 spin_lock_irqsave(&lp->lock, flags);
198 SMC_SET_INT_EN(lp, 0);
199 spin_unlock_irqrestore(&lp->lock, flags);
202 SMC_SET_HW_CFG(lp, HW_CFG_SRST_);
206 reg = SMC_GET_HW_CFG(lp);
207 /* If chip indicates reset timeout then try again */
208 if (reg & HW_CFG_SRST_TO_) {
209 PRINTK(dev, "chip reset timeout, retrying...\n");
213 } while (--timeout && (reg & HW_CFG_SRST_));
216 PRINTK(dev, "smc911x_reset timeout waiting for reset\n");
220 /* make sure EEPROM has finished loading before setting GPIO_CFG */
222 while (--timeout && (SMC_GET_E2P_CMD(lp) & E2P_CMD_EPC_BUSY_))
226 PRINTK(dev, "smc911x_reset timeout waiting for EEPROM busy\n");
230 /* Initialize interrupts */
231 SMC_SET_INT_EN(lp, 0);
234 /* Reset the FIFO level and flow control settings */
235 SMC_SET_HW_CFG(lp, (lp->tx_fifo_kb & 0xF) << 16);
236 //TODO: Figure out what appropriate pause time is
237 SMC_SET_FLOW(lp, FLOW_FCPT_ | FLOW_FCEN_);
238 SMC_SET_AFC_CFG(lp, lp->afc_cfg);
241 /* Set to LED outputs */
242 SMC_SET_GPIO_CFG(lp, 0x70070000);
245 * Deassert IRQ for 1*10us for edge type interrupts
246 * and drive IRQ pin push-pull
248 irq_cfg = (1 << 24) | INT_CFG_IRQ_EN_ | INT_CFG_IRQ_TYPE_;
249 #ifdef SMC_DYNAMIC_BUS_CONFIG
250 if (lp->cfg.irq_polarity)
251 irq_cfg |= INT_CFG_IRQ_POL_;
253 SMC_SET_IRQ_CFG(lp, irq_cfg);
255 /* clear anything saved */
256 if (lp->pending_tx_skb != NULL) {
257 dev_kfree_skb (lp->pending_tx_skb);
258 lp->pending_tx_skb = NULL;
259 dev->stats.tx_errors++;
260 dev->stats.tx_aborted_errors++;
265 * Enable Interrupts, Receive, and Transmit
267 static void smc911x_enable(struct net_device *dev)
269 struct smc911x_local *lp = netdev_priv(dev);
270 unsigned mask, cfg, cr;
273 DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
275 spin_lock_irqsave(&lp->lock, flags);
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 SMC_GET_MAC_CR(lp, cr);
290 cr |= MAC_CR_TXEN_ | MAC_CR_HBDIS_;
291 SMC_SET_MAC_CR(lp, cr);
292 SMC_SET_TX_CFG(lp, TX_CFG_TX_ON_);
294 /* Add 2 byte padding to start of packets */
295 SMC_SET_RX_CFG(lp, (2<<8) & RX_CFG_RXDOFF_);
297 /* Turn on receiver and enable RX */
298 if (cr & MAC_CR_RXEN_)
299 DBG(SMC_DEBUG_RX, dev, "Receiver already enabled\n");
301 SMC_SET_MAC_CR(lp, cr | MAC_CR_RXEN_);
303 /* Interrupt on every received packet */
304 SMC_SET_FIFO_RSA(lp, 0x01);
305 SMC_SET_FIFO_RSL(lp, 0x00);
307 /* now, enable interrupts */
308 mask = INT_EN_TDFA_EN_ | INT_EN_TSFL_EN_ | INT_EN_RSFL_EN_ |
309 INT_EN_GPT_INT_EN_ | INT_EN_RXDFH_INT_EN_ | INT_EN_RXE_EN_ |
311 if (IS_REV_A(lp->revision))
312 mask|=INT_EN_RDFL_EN_;
314 mask|=INT_EN_RDFO_EN_;
316 SMC_ENABLE_INT(lp, mask);
318 spin_unlock_irqrestore(&lp->lock, flags);
322 * this puts the device in an inactive state
324 static void smc911x_shutdown(struct net_device *dev)
326 struct smc911x_local *lp = netdev_priv(dev);
330 DBG(SMC_DEBUG_FUNC, dev, "%s: --> %s\n", CARDNAME, __func__);
333 SMC_SET_INT_EN(lp, 0);
335 /* Turn of Rx and TX */
336 spin_lock_irqsave(&lp->lock, flags);
337 SMC_GET_MAC_CR(lp, cr);
338 cr &= ~(MAC_CR_TXEN_ | MAC_CR_RXEN_ | MAC_CR_HBDIS_);
339 SMC_SET_MAC_CR(lp, cr);
340 SMC_SET_TX_CFG(lp, TX_CFG_STOP_TX_);
341 spin_unlock_irqrestore(&lp->lock, flags);
344 static inline void smc911x_drop_pkt(struct net_device *dev)
346 struct smc911x_local *lp = netdev_priv(dev);
347 unsigned int fifo_count, timeout, reg;
349 DBG(SMC_DEBUG_FUNC | SMC_DEBUG_RX, dev, "%s: --> %s\n",
351 fifo_count = SMC_GET_RX_FIFO_INF(lp) & 0xFFFF;
352 if (fifo_count <= 4) {
353 /* Manually dump the packet data */
357 /* Fast forward through the bad packet */
358 SMC_SET_RX_DP_CTRL(lp, RX_DP_CTRL_FFWD_BUSY_);
362 reg = SMC_GET_RX_DP_CTRL(lp) & RX_DP_CTRL_FFWD_BUSY_;
363 } while (--timeout && reg);
365 PRINTK(dev, "timeout waiting for RX fast forward\n");
371 * This is the procedure to handle the receipt of a packet.
372 * It should be called after checking for packet presence in
373 * the RX status FIFO. It must be called with the spin lock
376 static inline void smc911x_rcv(struct net_device *dev)
378 struct smc911x_local *lp = netdev_priv(dev);
379 unsigned int pkt_len, status;
383 DBG(SMC_DEBUG_FUNC | SMC_DEBUG_RX, dev, "--> %s\n",
385 status = SMC_GET_RX_STS_FIFO(lp);
386 DBG(SMC_DEBUG_RX, dev, "Rx pkt len %d status 0x%08x\n",
387 (status & 0x3fff0000) >> 16, status & 0xc000ffff);
388 pkt_len = (status & RX_STS_PKT_LEN_) >> 16;
389 if (status & RX_STS_ES_) {
390 /* Deal with a bad packet */
391 dev->stats.rx_errors++;
392 if (status & RX_STS_CRC_ERR_)
393 dev->stats.rx_crc_errors++;
395 if (status & RX_STS_LEN_ERR_)
396 dev->stats.rx_length_errors++;
397 if (status & RX_STS_MCAST_)
398 dev->stats.multicast++;
400 /* Remove the bad packet data from the RX FIFO */
401 smc911x_drop_pkt(dev);
403 /* Receive a valid packet */
404 /* Alloc a buffer with extra room for DMA alignment */
405 skb = netdev_alloc_skb(dev, pkt_len+32);
406 if (unlikely(skb == NULL)) {
407 PRINTK(dev, "Low memory, rcvd packet dropped.\n");
408 dev->stats.rx_dropped++;
409 smc911x_drop_pkt(dev);
412 /* Align IP header to 32 bits
413 * Note that the device is configured to add a 2
414 * byte padding to the packet start, so we really
415 * want to write to the orignal data pointer */
418 skb_put(skb,pkt_len-4);
422 /* Lower the FIFO threshold if possible */
423 fifo = SMC_GET_FIFO_INT(lp);
424 if (fifo & 0xFF) fifo--;
425 DBG(SMC_DEBUG_RX, dev, "Setting RX stat FIFO threshold to %d\n",
427 SMC_SET_FIFO_INT(lp, fifo);
429 SMC_SET_RX_CFG(lp, RX_CFG_RX_END_ALGN16_ | ((2<<8) & RX_CFG_RXDOFF_));
430 lp->rxdma_active = 1;
431 lp->current_rx_skb = skb;
432 SMC_PULL_DATA(lp, data, (pkt_len+2+15) & ~15);
433 /* Packet processing deferred to DMA RX interrupt */
436 SMC_SET_RX_CFG(lp, RX_CFG_RX_END_ALGN4_ | ((2<<8) & RX_CFG_RXDOFF_));
437 SMC_PULL_DATA(lp, data, pkt_len+2+3);
439 DBG(SMC_DEBUG_PKTS, dev, "Received packet\n");
440 PRINT_PKT(data, ((pkt_len - 4) <= 64) ? pkt_len - 4 : 64);
441 skb->protocol = eth_type_trans(skb, dev);
443 dev->stats.rx_packets++;
444 dev->stats.rx_bytes += pkt_len-4;
450 * This is called to actually send a packet to the chip.
452 static void smc911x_hardware_send_pkt(struct net_device *dev)
454 struct smc911x_local *lp = netdev_priv(dev);
456 unsigned int cmdA, cmdB, len;
459 DBG(SMC_DEBUG_FUNC | SMC_DEBUG_TX, dev, "--> %s\n", __func__);
460 BUG_ON(lp->pending_tx_skb == NULL);
462 skb = lp->pending_tx_skb;
463 lp->pending_tx_skb = NULL;
465 /* cmdA {25:24] data alignment [20:16] start offset [10:0] buffer length */
466 /* cmdB {31:16] pkt tag [10:0] length */
468 /* 16 byte buffer alignment mode */
469 buf = (char*)((u32)(skb->data) & ~0xF);
470 len = (skb->len + 0xF + ((u32)skb->data & 0xF)) & ~0xF;
471 cmdA = (1<<24) | (((u32)skb->data & 0xF)<<16) |
472 TX_CMD_A_INT_FIRST_SEG_ | TX_CMD_A_INT_LAST_SEG_ |
475 buf = (char*)((u32)skb->data & ~0x3);
476 len = (skb->len + 3 + ((u32)skb->data & 3)) & ~0x3;
477 cmdA = (((u32)skb->data & 0x3) << 16) |
478 TX_CMD_A_INT_FIRST_SEG_ | TX_CMD_A_INT_LAST_SEG_ |
481 /* tag is packet length so we can use this in stats update later */
482 cmdB = (skb->len << 16) | (skb->len & 0x7FF);
484 DBG(SMC_DEBUG_TX, dev, "TX PKT LENGTH 0x%04x (%d) BUF 0x%p CMDA 0x%08x CMDB 0x%08x\n",
485 len, len, buf, cmdA, cmdB);
486 SMC_SET_TX_FIFO(lp, cmdA);
487 SMC_SET_TX_FIFO(lp, cmdB);
489 DBG(SMC_DEBUG_PKTS, dev, "Transmitted packet\n");
490 PRINT_PKT(buf, len <= 64 ? len : 64);
492 /* Send pkt via PIO or DMA */
494 lp->current_tx_skb = skb;
495 SMC_PUSH_DATA(lp, buf, len);
496 /* DMA complete IRQ will free buffer and set jiffies */
498 SMC_PUSH_DATA(lp, buf, len);
499 dev->trans_start = jiffies;
500 dev_kfree_skb_irq(skb);
502 if (!lp->tx_throttle) {
503 netif_wake_queue(dev);
505 SMC_ENABLE_INT(lp, INT_EN_TDFA_EN_ | INT_EN_TSFL_EN_);
509 * Since I am not sure if I will have enough room in the chip's ram
510 * to store the packet, I call this routine which either sends it
511 * now, or set the card to generates an interrupt when ready
515 smc911x_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
517 struct smc911x_local *lp = netdev_priv(dev);
521 DBG(SMC_DEBUG_FUNC | SMC_DEBUG_TX, dev, "--> %s\n",
524 spin_lock_irqsave(&lp->lock, flags);
526 BUG_ON(lp->pending_tx_skb != NULL);
528 free = SMC_GET_TX_FIFO_INF(lp) & TX_FIFO_INF_TDFREE_;
529 DBG(SMC_DEBUG_TX, dev, "TX free space %d\n", free);
531 /* Turn off the flow when running out of space in FIFO */
532 if (free <= SMC911X_TX_FIFO_LOW_THRESHOLD) {
533 DBG(SMC_DEBUG_TX, dev, "Disabling data flow due to low FIFO space (%d)\n",
535 /* Reenable when at least 1 packet of size MTU present */
536 SMC_SET_FIFO_TDA(lp, (SMC911X_TX_FIFO_LOW_THRESHOLD)/64);
538 netif_stop_queue(dev);
541 /* Drop packets when we run out of space in TX FIFO
542 * Account for overhead required for:
544 * Tx command words 8 bytes
545 * Start offset 15 bytes
546 * End padding 15 bytes
548 if (unlikely(free < (skb->len + 8 + 15 + 15))) {
549 netdev_warn(dev, "No Tx free space %d < %d\n",
551 lp->pending_tx_skb = NULL;
552 dev->stats.tx_errors++;
553 dev->stats.tx_dropped++;
554 spin_unlock_irqrestore(&lp->lock, flags);
555 dev_kfree_skb_any(skb);
561 /* If the DMA is already running then defer this packet Tx until
562 * the DMA IRQ starts it
564 if (lp->txdma_active) {
565 DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, dev, "Tx DMA running, deferring packet\n");
566 lp->pending_tx_skb = skb;
567 netif_stop_queue(dev);
568 spin_unlock_irqrestore(&lp->lock, flags);
571 DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, dev, "Activating Tx DMA\n");
572 lp->txdma_active = 1;
576 lp->pending_tx_skb = skb;
577 smc911x_hardware_send_pkt(dev);
578 spin_unlock_irqrestore(&lp->lock, flags);
584 * This handles a TX status interrupt, which is only called when:
585 * - a TX error occurred, or
586 * - TX of a packet completed.
588 static void smc911x_tx(struct net_device *dev)
590 struct smc911x_local *lp = netdev_priv(dev);
591 unsigned int tx_status;
593 DBG(SMC_DEBUG_FUNC | SMC_DEBUG_TX, dev, "--> %s\n",
596 /* Collect the TX status */
597 while (((SMC_GET_TX_FIFO_INF(lp) & TX_FIFO_INF_TSUSED_) >> 16) != 0) {
598 DBG(SMC_DEBUG_TX, dev, "Tx stat FIFO used 0x%04x\n",
599 (SMC_GET_TX_FIFO_INF(lp) & TX_FIFO_INF_TSUSED_) >> 16);
600 tx_status = SMC_GET_TX_STS_FIFO(lp);
601 dev->stats.tx_packets++;
602 dev->stats.tx_bytes+=tx_status>>16;
603 DBG(SMC_DEBUG_TX, dev, "Tx FIFO tag 0x%04x status 0x%04x\n",
604 (tx_status & 0xffff0000) >> 16,
605 tx_status & 0x0000ffff);
606 /* count Tx errors, but ignore lost carrier errors when in
607 * full-duplex mode */
608 if ((tx_status & TX_STS_ES_) && !(lp->ctl_rfduplx &&
609 !(tx_status & 0x00000306))) {
610 dev->stats.tx_errors++;
612 if (tx_status & TX_STS_MANY_COLL_) {
613 dev->stats.collisions+=16;
614 dev->stats.tx_aborted_errors++;
616 dev->stats.collisions+=(tx_status & TX_STS_COLL_CNT_) >> 3;
618 /* carrier error only has meaning for half-duplex communication */
619 if ((tx_status & (TX_STS_LOC_ | TX_STS_NO_CARR_)) &&
621 dev->stats.tx_carrier_errors++;
623 if (tx_status & TX_STS_LATE_COLL_) {
624 dev->stats.collisions++;
625 dev->stats.tx_aborted_errors++;
631 /*---PHY CONTROL AND CONFIGURATION-----------------------------------------*/
633 * Reads a register from the MII Management serial interface
636 static int smc911x_phy_read(struct net_device *dev, int phyaddr, int phyreg)
638 struct smc911x_local *lp = netdev_priv(dev);
639 unsigned int phydata;
641 SMC_GET_MII(lp, phyreg, phyaddr, phydata);
643 DBG(SMC_DEBUG_MISC, dev, "%s: phyaddr=0x%x, phyreg=0x%02x, phydata=0x%04x\n",
644 __func__, phyaddr, phyreg, phydata);
650 * Writes a register to the MII Management serial interface
652 static void smc911x_phy_write(struct net_device *dev, int phyaddr, int phyreg,
655 struct smc911x_local *lp = netdev_priv(dev);
657 DBG(SMC_DEBUG_MISC, dev, "%s: phyaddr=0x%x, phyreg=0x%x, phydata=0x%x\n",
658 __func__, phyaddr, phyreg, phydata);
660 SMC_SET_MII(lp, phyreg, phyaddr, phydata);
664 * Finds and reports the PHY address (115 and 117 have external
665 * PHY interface 118 has internal only
667 static void smc911x_phy_detect(struct net_device *dev)
669 struct smc911x_local *lp = netdev_priv(dev);
671 unsigned int cfg, id1, id2;
673 DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
678 * Scan all 32 PHY addresses if necessary, starting at
679 * PHY#1 to PHY#31, and then PHY#0 last.
681 switch(lp->version) {
686 cfg = SMC_GET_HW_CFG(lp);
687 if (cfg & HW_CFG_EXT_PHY_DET_) {
688 cfg &= ~HW_CFG_PHY_CLK_SEL_;
689 cfg |= HW_CFG_PHY_CLK_SEL_CLK_DIS_;
690 SMC_SET_HW_CFG(lp, cfg);
691 udelay(10); /* Wait for clocks to stop */
693 cfg |= HW_CFG_EXT_PHY_EN_;
694 SMC_SET_HW_CFG(lp, cfg);
695 udelay(10); /* Wait for clocks to stop */
697 cfg &= ~HW_CFG_PHY_CLK_SEL_;
698 cfg |= HW_CFG_PHY_CLK_SEL_EXT_PHY_;
699 SMC_SET_HW_CFG(lp, cfg);
700 udelay(10); /* Wait for clocks to stop */
702 cfg |= HW_CFG_SMI_SEL_;
703 SMC_SET_HW_CFG(lp, cfg);
705 for (phyaddr = 1; phyaddr < 32; ++phyaddr) {
707 /* Read the PHY identifiers */
708 SMC_GET_PHY_ID1(lp, phyaddr & 31, id1);
709 SMC_GET_PHY_ID2(lp, phyaddr & 31, id2);
711 /* Make sure it is a valid identifier */
712 if (id1 != 0x0000 && id1 != 0xffff &&
713 id1 != 0x8000 && id2 != 0x0000 &&
714 id2 != 0xffff && id2 != 0x8000) {
715 /* Save the PHY's address */
716 lp->mii.phy_id = phyaddr & 31;
717 lp->phy_type = id1 << 16 | id2;
722 /* Found an external PHY */
726 /* Internal media only */
727 SMC_GET_PHY_ID1(lp, 1, id1);
728 SMC_GET_PHY_ID2(lp, 1, id2);
729 /* Save the PHY's address */
731 lp->phy_type = id1 << 16 | id2;
734 DBG(SMC_DEBUG_MISC, dev, "phy_id1=0x%x, phy_id2=0x%x phyaddr=0x%x\n",
735 id1, id2, lp->mii.phy_id);
739 * Sets the PHY to a configuration as determined by the user.
740 * Called with spin_lock held.
742 static int smc911x_phy_fixed(struct net_device *dev)
744 struct smc911x_local *lp = netdev_priv(dev);
745 int phyaddr = lp->mii.phy_id;
748 DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
750 /* Enter Link Disable state */
751 SMC_GET_PHY_BMCR(lp, phyaddr, bmcr);
753 SMC_SET_PHY_BMCR(lp, phyaddr, bmcr);
756 * Set our fixed capabilities
757 * Disable auto-negotiation
759 bmcr &= ~BMCR_ANENABLE;
761 bmcr |= BMCR_FULLDPLX;
763 if (lp->ctl_rspeed == 100)
764 bmcr |= BMCR_SPEED100;
766 /* Write our capabilities to the phy control register */
767 SMC_SET_PHY_BMCR(lp, phyaddr, bmcr);
769 /* Re-Configure the Receive/Phy Control register */
771 SMC_SET_PHY_BMCR(lp, phyaddr, bmcr);
777 * smc911x_phy_reset - reset the phy
781 * Issue a software reset for the specified PHY and
782 * wait up to 100ms for the reset to complete. We should
783 * not access the PHY for 50ms after issuing the reset.
785 * The time to wait appears to be dependent on the PHY.
788 static int smc911x_phy_reset(struct net_device *dev, int phy)
790 struct smc911x_local *lp = netdev_priv(dev);
795 DBG(SMC_DEBUG_FUNC, dev, "--> %s()\n", __func__);
797 spin_lock_irqsave(&lp->lock, flags);
798 reg = SMC_GET_PMT_CTRL(lp);
800 reg |= PMT_CTRL_PHY_RST_;
801 SMC_SET_PMT_CTRL(lp, reg);
802 spin_unlock_irqrestore(&lp->lock, flags);
803 for (timeout = 2; timeout; timeout--) {
805 spin_lock_irqsave(&lp->lock, flags);
806 reg = SMC_GET_PMT_CTRL(lp);
807 spin_unlock_irqrestore(&lp->lock, flags);
808 if (!(reg & PMT_CTRL_PHY_RST_)) {
809 /* extra delay required because the phy may
810 * not be completed with its reset
811 * when PHY_BCR_RESET_ is cleared. 256us
812 * should suffice, but use 500us to be safe
819 return reg & PMT_CTRL_PHY_RST_;
823 * smc911x_phy_powerdown - powerdown phy
827 * Power down the specified PHY
829 static void smc911x_phy_powerdown(struct net_device *dev, int phy)
831 struct smc911x_local *lp = netdev_priv(dev);
834 /* Enter Link Disable state */
835 SMC_GET_PHY_BMCR(lp, phy, bmcr);
837 SMC_SET_PHY_BMCR(lp, phy, bmcr);
841 * smc911x_phy_check_media - check the media status and adjust BMCR
843 * @init: set true for initialisation
845 * Select duplex mode depending on negotiation state. This
846 * also updates our carrier state.
848 static void smc911x_phy_check_media(struct net_device *dev, int init)
850 struct smc911x_local *lp = netdev_priv(dev);
851 int phyaddr = lp->mii.phy_id;
852 unsigned int bmcr, cr;
854 DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
856 if (mii_check_media(&lp->mii, netif_msg_link(lp), init)) {
857 /* duplex state has changed */
858 SMC_GET_PHY_BMCR(lp, phyaddr, bmcr);
859 SMC_GET_MAC_CR(lp, cr);
860 if (lp->mii.full_duplex) {
861 DBG(SMC_DEBUG_MISC, dev, "Configuring for full-duplex mode\n");
862 bmcr |= BMCR_FULLDPLX;
863 cr |= MAC_CR_RCVOWN_;
865 DBG(SMC_DEBUG_MISC, dev, "Configuring for half-duplex mode\n");
866 bmcr &= ~BMCR_FULLDPLX;
867 cr &= ~MAC_CR_RCVOWN_;
869 SMC_SET_PHY_BMCR(lp, phyaddr, bmcr);
870 SMC_SET_MAC_CR(lp, cr);
875 * Configures the specified PHY through the MII management interface
876 * using Autonegotiation.
877 * Calls smc911x_phy_fixed() if the user has requested a certain config.
878 * If RPC ANEG bit is set, the media selection is dependent purely on
879 * the selection by the MII (either in the MII BMCR reg or the result
880 * of autonegotiation.) If the RPC ANEG bit is cleared, the selection
881 * is controlled by the RPC SPEED and RPC DPLX bits.
883 static void smc911x_phy_configure(struct work_struct *work)
885 struct smc911x_local *lp = container_of(work, struct smc911x_local,
887 struct net_device *dev = lp->netdev;
888 int phyaddr = lp->mii.phy_id;
889 int my_phy_caps; /* My PHY capabilities */
890 int my_ad_caps; /* My Advertised capabilities */
894 DBG(SMC_DEBUG_FUNC, dev, "--> %s()\n", __func__);
897 * We should not be called if phy_type is zero.
899 if (lp->phy_type == 0)
902 if (smc911x_phy_reset(dev, phyaddr)) {
903 netdev_info(dev, "PHY reset timed out\n");
906 spin_lock_irqsave(&lp->lock, flags);
909 * Enable PHY Interrupts (for register 18)
910 * Interrupts listed here are enabled
912 SMC_SET_PHY_INT_MASK(lp, phyaddr, PHY_INT_MASK_ENERGY_ON_ |
913 PHY_INT_MASK_ANEG_COMP_ | PHY_INT_MASK_REMOTE_FAULT_ |
914 PHY_INT_MASK_LINK_DOWN_);
916 /* If the user requested no auto neg, then go set his request */
917 if (lp->mii.force_media) {
918 smc911x_phy_fixed(dev);
919 goto smc911x_phy_configure_exit;
922 /* Copy our capabilities from MII_BMSR to MII_ADVERTISE */
923 SMC_GET_PHY_BMSR(lp, phyaddr, my_phy_caps);
924 if (!(my_phy_caps & BMSR_ANEGCAPABLE)) {
925 netdev_info(dev, "Auto negotiation NOT supported\n");
926 smc911x_phy_fixed(dev);
927 goto smc911x_phy_configure_exit;
930 /* CSMA capable w/ both pauses */
931 my_ad_caps = ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
933 if (my_phy_caps & BMSR_100BASE4)
934 my_ad_caps |= ADVERTISE_100BASE4;
935 if (my_phy_caps & BMSR_100FULL)
936 my_ad_caps |= ADVERTISE_100FULL;
937 if (my_phy_caps & BMSR_100HALF)
938 my_ad_caps |= ADVERTISE_100HALF;
939 if (my_phy_caps & BMSR_10FULL)
940 my_ad_caps |= ADVERTISE_10FULL;
941 if (my_phy_caps & BMSR_10HALF)
942 my_ad_caps |= ADVERTISE_10HALF;
944 /* Disable capabilities not selected by our user */
945 if (lp->ctl_rspeed != 100)
946 my_ad_caps &= ~(ADVERTISE_100BASE4|ADVERTISE_100FULL|ADVERTISE_100HALF);
948 if (!lp->ctl_rfduplx)
949 my_ad_caps &= ~(ADVERTISE_100FULL|ADVERTISE_10FULL);
951 /* Update our Auto-Neg Advertisement Register */
952 SMC_SET_PHY_MII_ADV(lp, phyaddr, my_ad_caps);
953 lp->mii.advertising = my_ad_caps;
956 * Read the register back. Without this, it appears that when
957 * auto-negotiation is restarted, sometimes it isn't ready and
958 * the link does not come up.
961 SMC_GET_PHY_MII_ADV(lp, phyaddr, status);
963 DBG(SMC_DEBUG_MISC, dev, "phy caps=0x%04x\n", my_phy_caps);
964 DBG(SMC_DEBUG_MISC, dev, "phy advertised caps=0x%04x\n", my_ad_caps);
966 /* Restart auto-negotiation process in order to advertise my caps */
967 SMC_SET_PHY_BMCR(lp, phyaddr, BMCR_ANENABLE | BMCR_ANRESTART);
969 smc911x_phy_check_media(dev, 1);
971 smc911x_phy_configure_exit:
972 spin_unlock_irqrestore(&lp->lock, flags);
976 * smc911x_phy_interrupt
978 * Purpose: Handle interrupts relating to PHY register 18. This is
979 * called from the "hard" interrupt handler under our private spinlock.
981 static void smc911x_phy_interrupt(struct net_device *dev)
983 struct smc911x_local *lp = netdev_priv(dev);
984 int phyaddr = lp->mii.phy_id;
987 DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
989 if (lp->phy_type == 0)
992 smc911x_phy_check_media(dev, 0);
993 /* read to clear status bits */
994 SMC_GET_PHY_INT_SRC(lp, phyaddr,status);
995 DBG(SMC_DEBUG_MISC, dev, "PHY interrupt status 0x%04x\n",
997 DBG(SMC_DEBUG_MISC, dev, "AFC_CFG 0x%08x\n",
998 SMC_GET_AFC_CFG(lp));
1001 /*--- END PHY CONTROL AND CONFIGURATION-------------------------------------*/
1004 * This is the main routine of the driver, to handle the device when
1005 * it needs some attention.
1007 static irqreturn_t smc911x_interrupt(int irq, void *dev_id)
1009 struct net_device *dev = dev_id;
1010 struct smc911x_local *lp = netdev_priv(dev);
1011 unsigned int status, mask, timeout;
1012 unsigned int rx_overrun=0, cr, pkts;
1013 unsigned long flags;
1015 DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
1017 spin_lock_irqsave(&lp->lock, flags);
1019 /* Spurious interrupt check */
1020 if ((SMC_GET_IRQ_CFG(lp) & (INT_CFG_IRQ_INT_ | INT_CFG_IRQ_EN_)) !=
1021 (INT_CFG_IRQ_INT_ | INT_CFG_IRQ_EN_)) {
1022 spin_unlock_irqrestore(&lp->lock, flags);
1026 mask = SMC_GET_INT_EN(lp);
1027 SMC_SET_INT_EN(lp, 0);
1029 /* set a timeout value, so I don't stay here forever */
1034 status = SMC_GET_INT(lp);
1036 DBG(SMC_DEBUG_MISC, dev, "INT 0x%08x MASK 0x%08x OUTSIDE MASK 0x%08x\n",
1037 status, mask, status & ~mask);
1043 /* Handle SW interrupt condition */
1044 if (status & INT_STS_SW_INT_) {
1045 SMC_ACK_INT(lp, INT_STS_SW_INT_);
1046 mask &= ~INT_EN_SW_INT_EN_;
1048 /* Handle various error conditions */
1049 if (status & INT_STS_RXE_) {
1050 SMC_ACK_INT(lp, INT_STS_RXE_);
1051 dev->stats.rx_errors++;
1053 if (status & INT_STS_RXDFH_INT_) {
1054 SMC_ACK_INT(lp, INT_STS_RXDFH_INT_);
1055 dev->stats.rx_dropped+=SMC_GET_RX_DROP(lp);
1057 /* Undocumented interrupt-what is the right thing to do here? */
1058 if (status & INT_STS_RXDF_INT_) {
1059 SMC_ACK_INT(lp, INT_STS_RXDF_INT_);
1062 /* Rx Data FIFO exceeds set level */
1063 if (status & INT_STS_RDFL_) {
1064 if (IS_REV_A(lp->revision)) {
1066 SMC_GET_MAC_CR(lp, cr);
1067 cr &= ~MAC_CR_RXEN_;
1068 SMC_SET_MAC_CR(lp, cr);
1069 DBG(SMC_DEBUG_RX, dev, "RX overrun\n");
1070 dev->stats.rx_errors++;
1071 dev->stats.rx_fifo_errors++;
1073 SMC_ACK_INT(lp, INT_STS_RDFL_);
1075 if (status & INT_STS_RDFO_) {
1076 if (!IS_REV_A(lp->revision)) {
1077 SMC_GET_MAC_CR(lp, cr);
1078 cr &= ~MAC_CR_RXEN_;
1079 SMC_SET_MAC_CR(lp, cr);
1081 DBG(SMC_DEBUG_RX, dev, "RX overrun\n");
1082 dev->stats.rx_errors++;
1083 dev->stats.rx_fifo_errors++;
1085 SMC_ACK_INT(lp, INT_STS_RDFO_);
1087 /* Handle receive condition */
1088 if ((status & INT_STS_RSFL_) || rx_overrun) {
1090 DBG(SMC_DEBUG_RX, dev, "RX irq\n");
1091 fifo = SMC_GET_RX_FIFO_INF(lp);
1092 pkts = (fifo & RX_FIFO_INF_RXSUSED_) >> 16;
1093 DBG(SMC_DEBUG_RX, dev, "Rx FIFO pkts %d, bytes %d\n",
1094 pkts, fifo & 0xFFFF);
1098 if (lp->rxdma_active){
1099 DBG(SMC_DEBUG_RX | SMC_DEBUG_DMA, dev,
1101 /* The DMA is already running so up the IRQ threshold */
1102 fifo = SMC_GET_FIFO_INT(lp) & ~0xFF;
1103 fifo |= pkts & 0xFF;
1104 DBG(SMC_DEBUG_RX, dev,
1105 "Setting RX stat FIFO threshold to %d\n",
1107 SMC_SET_FIFO_INT(lp, fifo);
1112 SMC_ACK_INT(lp, INT_STS_RSFL_);
1114 /* Handle transmit FIFO available */
1115 if (status & INT_STS_TDFA_) {
1116 DBG(SMC_DEBUG_TX, dev, "TX data FIFO space available irq\n");
1117 SMC_SET_FIFO_TDA(lp, 0xFF);
1118 lp->tx_throttle = 0;
1120 if (!lp->txdma_active)
1122 netif_wake_queue(dev);
1123 SMC_ACK_INT(lp, INT_STS_TDFA_);
1125 /* Handle transmit done condition */
1127 if (status & (INT_STS_TSFL_ | INT_STS_GPT_INT_)) {
1128 DBG(SMC_DEBUG_TX | SMC_DEBUG_MISC, dev,
1129 "Tx stat FIFO limit (%d) /GPT irq\n",
1130 (SMC_GET_FIFO_INT(lp) & 0x00ff0000) >> 16);
1132 SMC_SET_GPT_CFG(lp, GPT_CFG_TIMER_EN_ | 10000);
1133 SMC_ACK_INT(lp, INT_STS_TSFL_);
1134 SMC_ACK_INT(lp, INT_STS_TSFL_ | INT_STS_GPT_INT_);
1137 if (status & INT_STS_TSFL_) {
1138 DBG(SMC_DEBUG_TX, dev, "TX status FIFO limit (%d) irq\n", ?);
1140 SMC_ACK_INT(lp, INT_STS_TSFL_);
1143 if (status & INT_STS_GPT_INT_) {
1144 DBG(SMC_DEBUG_RX, dev, "IRQ_CFG 0x%08x FIFO_INT 0x%08x RX_CFG 0x%08x\n",
1145 SMC_GET_IRQ_CFG(lp),
1146 SMC_GET_FIFO_INT(lp),
1147 SMC_GET_RX_CFG(lp));
1148 DBG(SMC_DEBUG_RX, dev, "Rx Stat FIFO Used 0x%02x Data FIFO Used 0x%04x Stat FIFO 0x%08x\n",
1149 (SMC_GET_RX_FIFO_INF(lp) & 0x00ff0000) >> 16,
1150 SMC_GET_RX_FIFO_INF(lp) & 0xffff,
1151 SMC_GET_RX_STS_FIFO_PEEK(lp));
1152 SMC_SET_GPT_CFG(lp, GPT_CFG_TIMER_EN_ | 10000);
1153 SMC_ACK_INT(lp, INT_STS_GPT_INT_);
1157 /* Handle PHY interrupt condition */
1158 if (status & INT_STS_PHY_INT_) {
1159 DBG(SMC_DEBUG_MISC, dev, "PHY irq\n");
1160 smc911x_phy_interrupt(dev);
1161 SMC_ACK_INT(lp, INT_STS_PHY_INT_);
1163 } while (--timeout);
1165 /* restore mask state */
1166 SMC_SET_INT_EN(lp, mask);
1168 DBG(SMC_DEBUG_MISC, dev, "Interrupt done (%d loops)\n",
1171 spin_unlock_irqrestore(&lp->lock, flags);
1178 smc911x_tx_dma_irq(int dma, void *data)
1180 struct net_device *dev = (struct net_device *)data;
1181 struct smc911x_local *lp = netdev_priv(dev);
1182 struct sk_buff *skb = lp->current_tx_skb;
1183 unsigned long flags;
1185 DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
1187 DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, dev, "TX DMA irq handler\n");
1188 /* Clear the DMA interrupt sources */
1189 SMC_DMA_ACK_IRQ(dev, dma);
1190 BUG_ON(skb == NULL);
1191 dma_unmap_single(NULL, tx_dmabuf, tx_dmalen, DMA_TO_DEVICE);
1192 dev->trans_start = jiffies;
1193 dev_kfree_skb_irq(skb);
1194 lp->current_tx_skb = NULL;
1195 if (lp->pending_tx_skb != NULL)
1196 smc911x_hardware_send_pkt(dev);
1198 DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, dev,
1199 "No pending Tx packets. DMA disabled\n");
1200 spin_lock_irqsave(&lp->lock, flags);
1201 lp->txdma_active = 0;
1202 if (!lp->tx_throttle) {
1203 netif_wake_queue(dev);
1205 spin_unlock_irqrestore(&lp->lock, flags);
1208 DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, dev,
1209 "TX DMA irq completed\n");
1212 smc911x_rx_dma_irq(int dma, void *data)
1214 struct net_device *dev = (struct net_device *)data;
1215 struct smc911x_local *lp = netdev_priv(dev);
1216 struct sk_buff *skb = lp->current_rx_skb;
1217 unsigned long flags;
1220 DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
1221 DBG(SMC_DEBUG_RX | SMC_DEBUG_DMA, dev, "RX DMA irq handler\n");
1222 /* Clear the DMA interrupt sources */
1223 SMC_DMA_ACK_IRQ(dev, dma);
1224 dma_unmap_single(NULL, rx_dmabuf, rx_dmalen, DMA_FROM_DEVICE);
1225 BUG_ON(skb == NULL);
1226 lp->current_rx_skb = NULL;
1227 PRINT_PKT(skb->data, skb->len);
1228 skb->protocol = eth_type_trans(skb, dev);
1229 dev->stats.rx_packets++;
1230 dev->stats.rx_bytes += skb->len;
1233 spin_lock_irqsave(&lp->lock, flags);
1234 pkts = (SMC_GET_RX_FIFO_INF(lp) & RX_FIFO_INF_RXSUSED_) >> 16;
1238 lp->rxdma_active = 0;
1240 spin_unlock_irqrestore(&lp->lock, flags);
1241 DBG(SMC_DEBUG_RX | SMC_DEBUG_DMA, dev,
1242 "RX DMA irq completed. DMA RX FIFO PKTS %d\n",
1245 #endif /* SMC_USE_DMA */
1247 #ifdef CONFIG_NET_POLL_CONTROLLER
1249 * Polling receive - used by netconsole and other diagnostic tools
1250 * to allow network i/o with interrupts disabled.
1252 static void smc911x_poll_controller(struct net_device *dev)
1254 disable_irq(dev->irq);
1255 smc911x_interrupt(dev->irq, dev);
1256 enable_irq(dev->irq);
1260 /* Our watchdog timed out. Called by the networking layer */
1261 static void smc911x_timeout(struct net_device *dev)
1263 struct smc911x_local *lp = netdev_priv(dev);
1265 unsigned long flags;
1267 DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
1269 spin_lock_irqsave(&lp->lock, flags);
1270 status = SMC_GET_INT(lp);
1271 mask = SMC_GET_INT_EN(lp);
1272 spin_unlock_irqrestore(&lp->lock, flags);
1273 DBG(SMC_DEBUG_MISC, dev, "INT 0x%02x MASK 0x%02x\n",
1276 /* Dump the current TX FIFO contents and restart */
1277 mask = SMC_GET_TX_CFG(lp);
1278 SMC_SET_TX_CFG(lp, mask | TX_CFG_TXS_DUMP_ | TX_CFG_TXD_DUMP_);
1280 * Reconfiguring the PHY doesn't seem like a bad idea here, but
1281 * smc911x_phy_configure() calls msleep() which calls schedule_timeout()
1282 * which calls schedule(). Hence we use a work queue.
1284 if (lp->phy_type != 0)
1285 schedule_work(&lp->phy_configure);
1287 /* We can accept TX packets again */
1288 dev->trans_start = jiffies; /* prevent tx timeout */
1289 netif_wake_queue(dev);
1293 * This routine will, depending on the values passed to it,
1294 * either make it accept multicast packets, go into
1295 * promiscuous mode (for TCPDUMP and cousins) or accept
1296 * a select set of multicast packets
1298 static void smc911x_set_multicast_list(struct net_device *dev)
1300 struct smc911x_local *lp = netdev_priv(dev);
1301 unsigned int multicast_table[2];
1302 unsigned int mcr, update_multicast = 0;
1303 unsigned long flags;
1305 DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
1307 spin_lock_irqsave(&lp->lock, flags);
1308 SMC_GET_MAC_CR(lp, mcr);
1309 spin_unlock_irqrestore(&lp->lock, flags);
1311 if (dev->flags & IFF_PROMISC) {
1313 DBG(SMC_DEBUG_MISC, dev, "RCR_PRMS\n");
1314 mcr |= MAC_CR_PRMS_;
1317 * Here, I am setting this to accept all multicast packets.
1318 * I don't need to zero the multicast table, because the flag is
1319 * checked before the table is
1321 else if (dev->flags & IFF_ALLMULTI || netdev_mc_count(dev) > 16) {
1322 DBG(SMC_DEBUG_MISC, dev, "RCR_ALMUL\n");
1323 mcr |= MAC_CR_MCPAS_;
1327 * This sets the internal hardware table to filter out unwanted
1328 * multicast packets before they take up memory.
1330 * The SMC chip uses a hash table where the high 6 bits of the CRC of
1331 * address are the offset into the table. If that bit is 1, then the
1332 * multicast packet is accepted. Otherwise, it's dropped silently.
1334 * To use the 6 bits as an offset into the table, the high 1 bit is
1335 * the number of the 32 bit register, while the low 5 bits are the bit
1336 * within that register.
1338 else if (!netdev_mc_empty(dev)) {
1339 struct netdev_hw_addr *ha;
1341 /* Set the Hash perfec mode */
1342 mcr |= MAC_CR_HPFILT_;
1344 /* start with a table of all zeros: reject all */
1345 memset(multicast_table, 0, sizeof(multicast_table));
1347 netdev_for_each_mc_addr(ha, dev) {
1350 /* upper 6 bits are used as hash index */
1351 position = ether_crc(ETH_ALEN, ha->addr)>>26;
1353 multicast_table[position>>5] |= 1 << (position&0x1f);
1356 /* be sure I get rid of flags I might have set */
1357 mcr &= ~(MAC_CR_PRMS_ | MAC_CR_MCPAS_);
1359 /* now, the table can be loaded into the chipset */
1360 update_multicast = 1;
1362 DBG(SMC_DEBUG_MISC, dev, "~(MAC_CR_PRMS_|MAC_CR_MCPAS_)\n");
1363 mcr &= ~(MAC_CR_PRMS_ | MAC_CR_MCPAS_);
1366 * since I'm disabling all multicast entirely, I need to
1367 * clear the multicast list
1369 memset(multicast_table, 0, sizeof(multicast_table));
1370 update_multicast = 1;
1373 spin_lock_irqsave(&lp->lock, flags);
1374 SMC_SET_MAC_CR(lp, mcr);
1375 if (update_multicast) {
1376 DBG(SMC_DEBUG_MISC, dev,
1377 "update mcast hash table 0x%08x 0x%08x\n",
1378 multicast_table[0], multicast_table[1]);
1379 SMC_SET_HASHL(lp, multicast_table[0]);
1380 SMC_SET_HASHH(lp, multicast_table[1]);
1382 spin_unlock_irqrestore(&lp->lock, flags);
1387 * Open and Initialize the board
1389 * Set up everything, reset the card, etc..
1392 smc911x_open(struct net_device *dev)
1394 struct smc911x_local *lp = netdev_priv(dev);
1396 DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
1398 /* reset the hardware */
1401 /* Configure the PHY, initialize the link state */
1402 smc911x_phy_configure(&lp->phy_configure);
1404 /* Turn on Tx + Rx */
1405 smc911x_enable(dev);
1407 netif_start_queue(dev);
1415 * this makes the board clean up everything that it can
1416 * and not talk to the outside world. Caused by
1417 * an 'ifconfig ethX down'
1419 static int smc911x_close(struct net_device *dev)
1421 struct smc911x_local *lp = netdev_priv(dev);
1423 DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
1425 netif_stop_queue(dev);
1426 netif_carrier_off(dev);
1428 /* clear everything */
1429 smc911x_shutdown(dev);
1431 if (lp->phy_type != 0) {
1432 /* We need to ensure that no calls to
1433 * smc911x_phy_configure are pending.
1435 cancel_work_sync(&lp->phy_configure);
1436 smc911x_phy_powerdown(dev, lp->mii.phy_id);
1439 if (lp->pending_tx_skb) {
1440 dev_kfree_skb(lp->pending_tx_skb);
1441 lp->pending_tx_skb = NULL;
1451 smc911x_ethtool_getsettings(struct net_device *dev, struct ethtool_cmd *cmd)
1453 struct smc911x_local *lp = netdev_priv(dev);
1455 unsigned long flags;
1457 DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
1461 if (lp->phy_type != 0) {
1462 spin_lock_irqsave(&lp->lock, flags);
1463 ret = mii_ethtool_gset(&lp->mii, cmd);
1464 spin_unlock_irqrestore(&lp->lock, flags);
1466 cmd->supported = SUPPORTED_10baseT_Half |
1467 SUPPORTED_10baseT_Full |
1468 SUPPORTED_TP | SUPPORTED_AUI;
1470 if (lp->ctl_rspeed == 10)
1471 ethtool_cmd_speed_set(cmd, SPEED_10);
1472 else if (lp->ctl_rspeed == 100)
1473 ethtool_cmd_speed_set(cmd, SPEED_100);
1475 cmd->autoneg = AUTONEG_DISABLE;
1476 if (lp->mii.phy_id==1)
1477 cmd->transceiver = XCVR_INTERNAL;
1479 cmd->transceiver = XCVR_EXTERNAL;
1481 SMC_GET_PHY_SPECIAL(lp, lp->mii.phy_id, status);
1483 (status & (PHY_SPECIAL_SPD_10FULL_ | PHY_SPECIAL_SPD_100FULL_)) ?
1484 DUPLEX_FULL : DUPLEX_HALF;
1492 smc911x_ethtool_setsettings(struct net_device *dev, struct ethtool_cmd *cmd)
1494 struct smc911x_local *lp = netdev_priv(dev);
1496 unsigned long flags;
1498 if (lp->phy_type != 0) {
1499 spin_lock_irqsave(&lp->lock, flags);
1500 ret = mii_ethtool_sset(&lp->mii, cmd);
1501 spin_unlock_irqrestore(&lp->lock, flags);
1503 if (cmd->autoneg != AUTONEG_DISABLE ||
1504 cmd->speed != SPEED_10 ||
1505 (cmd->duplex != DUPLEX_HALF && cmd->duplex != DUPLEX_FULL) ||
1506 (cmd->port != PORT_TP && cmd->port != PORT_AUI))
1509 lp->ctl_rfduplx = cmd->duplex == DUPLEX_FULL;
1518 smc911x_ethtool_getdrvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1520 strlcpy(info->driver, CARDNAME, sizeof(info->driver));
1521 strlcpy(info->version, version, sizeof(info->version));
1522 strlcpy(info->bus_info, dev_name(dev->dev.parent),
1523 sizeof(info->bus_info));
1526 static int smc911x_ethtool_nwayreset(struct net_device *dev)
1528 struct smc911x_local *lp = netdev_priv(dev);
1530 unsigned long flags;
1532 if (lp->phy_type != 0) {
1533 spin_lock_irqsave(&lp->lock, flags);
1534 ret = mii_nway_restart(&lp->mii);
1535 spin_unlock_irqrestore(&lp->lock, flags);
1541 static u32 smc911x_ethtool_getmsglevel(struct net_device *dev)
1543 struct smc911x_local *lp = netdev_priv(dev);
1544 return lp->msg_enable;
1547 static void smc911x_ethtool_setmsglevel(struct net_device *dev, u32 level)
1549 struct smc911x_local *lp = netdev_priv(dev);
1550 lp->msg_enable = level;
1553 static int smc911x_ethtool_getregslen(struct net_device *dev)
1555 /* System regs + MAC regs + PHY regs */
1556 return (((E2P_CMD - ID_REV)/4 + 1) +
1557 (WUCSR - MAC_CR)+1 + 32) * sizeof(u32);
1560 static void smc911x_ethtool_getregs(struct net_device *dev,
1561 struct ethtool_regs* regs, void *buf)
1563 struct smc911x_local *lp = netdev_priv(dev);
1564 unsigned long flags;
1566 u32 *data = (u32*)buf;
1568 regs->version = lp->version;
1569 for(i=ID_REV;i<=E2P_CMD;i+=4) {
1570 data[j++] = SMC_inl(lp, i);
1572 for(i=MAC_CR;i<=WUCSR;i++) {
1573 spin_lock_irqsave(&lp->lock, flags);
1574 SMC_GET_MAC_CSR(lp, i, reg);
1575 spin_unlock_irqrestore(&lp->lock, flags);
1578 for(i=0;i<=31;i++) {
1579 spin_lock_irqsave(&lp->lock, flags);
1580 SMC_GET_MII(lp, i, lp->mii.phy_id, reg);
1581 spin_unlock_irqrestore(&lp->lock, flags);
1582 data[j++] = reg & 0xFFFF;
1586 static int smc911x_ethtool_wait_eeprom_ready(struct net_device *dev)
1588 struct smc911x_local *lp = netdev_priv(dev);
1589 unsigned int timeout;
1592 e2p_cmd = SMC_GET_E2P_CMD(lp);
1593 for(timeout=10;(e2p_cmd & E2P_CMD_EPC_BUSY_) && timeout; timeout--) {
1594 if (e2p_cmd & E2P_CMD_EPC_TIMEOUT_) {
1595 PRINTK(dev, "%s timeout waiting for EEPROM to respond\n",
1600 e2p_cmd = SMC_GET_E2P_CMD(lp);
1603 PRINTK(dev, "%s timeout waiting for EEPROM CMD not busy\n",
1610 static inline int smc911x_ethtool_write_eeprom_cmd(struct net_device *dev,
1613 struct smc911x_local *lp = netdev_priv(dev);
1616 if ((ret = smc911x_ethtool_wait_eeprom_ready(dev))!=0)
1618 SMC_SET_E2P_CMD(lp, E2P_CMD_EPC_BUSY_ |
1619 ((cmd) & (0x7<<28)) |
1624 static inline int smc911x_ethtool_read_eeprom_byte(struct net_device *dev,
1627 struct smc911x_local *lp = netdev_priv(dev);
1630 if ((ret = smc911x_ethtool_wait_eeprom_ready(dev))!=0)
1632 *data = SMC_GET_E2P_DATA(lp);
1636 static inline int smc911x_ethtool_write_eeprom_byte(struct net_device *dev,
1639 struct smc911x_local *lp = netdev_priv(dev);
1642 if ((ret = smc911x_ethtool_wait_eeprom_ready(dev))!=0)
1644 SMC_SET_E2P_DATA(lp, data);
1648 static int smc911x_ethtool_geteeprom(struct net_device *dev,
1649 struct ethtool_eeprom *eeprom, u8 *data)
1651 u8 eebuf[SMC911X_EEPROM_LEN];
1654 for(i=0;i<SMC911X_EEPROM_LEN;i++) {
1655 if ((ret=smc911x_ethtool_write_eeprom_cmd(dev, E2P_CMD_EPC_CMD_READ_, i ))!=0)
1657 if ((ret=smc911x_ethtool_read_eeprom_byte(dev, &eebuf[i]))!=0)
1660 memcpy(data, eebuf+eeprom->offset, eeprom->len);
1664 static int smc911x_ethtool_seteeprom(struct net_device *dev,
1665 struct ethtool_eeprom *eeprom, u8 *data)
1670 if ((ret=smc911x_ethtool_write_eeprom_cmd(dev, E2P_CMD_EPC_CMD_EWEN_, 0 ))!=0)
1672 for(i=eeprom->offset;i<(eeprom->offset+eeprom->len);i++) {
1674 if ((ret=smc911x_ethtool_write_eeprom_cmd(dev, E2P_CMD_EPC_CMD_ERASE_, i ))!=0)
1677 if ((ret=smc911x_ethtool_write_eeprom_byte(dev, *data))!=0)
1679 if ((ret=smc911x_ethtool_write_eeprom_cmd(dev, E2P_CMD_EPC_CMD_WRITE_, i ))!=0)
1685 static int smc911x_ethtool_geteeprom_len(struct net_device *dev)
1687 return SMC911X_EEPROM_LEN;
1690 static const struct ethtool_ops smc911x_ethtool_ops = {
1691 .get_settings = smc911x_ethtool_getsettings,
1692 .set_settings = smc911x_ethtool_setsettings,
1693 .get_drvinfo = smc911x_ethtool_getdrvinfo,
1694 .get_msglevel = smc911x_ethtool_getmsglevel,
1695 .set_msglevel = smc911x_ethtool_setmsglevel,
1696 .nway_reset = smc911x_ethtool_nwayreset,
1697 .get_link = ethtool_op_get_link,
1698 .get_regs_len = smc911x_ethtool_getregslen,
1699 .get_regs = smc911x_ethtool_getregs,
1700 .get_eeprom_len = smc911x_ethtool_geteeprom_len,
1701 .get_eeprom = smc911x_ethtool_geteeprom,
1702 .set_eeprom = smc911x_ethtool_seteeprom,
1708 * This routine has a simple purpose -- make the SMC chip generate an
1709 * interrupt, so an auto-detect routine can detect it, and find the IRQ,
1711 static int smc911x_findirq(struct net_device *dev)
1713 struct smc911x_local *lp = netdev_priv(dev);
1715 unsigned long cookie;
1717 DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
1719 cookie = probe_irq_on();
1722 * Force a SW interrupt
1725 SMC_SET_INT_EN(lp, INT_EN_SW_INT_EN_);
1728 * Wait until positive that the interrupt has been generated
1733 int_status = SMC_GET_INT_EN(lp);
1734 if (int_status & INT_EN_SW_INT_EN_)
1735 break; /* got the interrupt */
1736 } while (--timeout);
1739 * there is really nothing that I can do here if timeout fails,
1740 * as autoirq_report will return a 0 anyway, which is what I
1741 * want in this case. Plus, the clean up is needed in both
1745 /* and disable all interrupts again */
1746 SMC_SET_INT_EN(lp, 0);
1748 /* and return what I found */
1749 return probe_irq_off(cookie);
1752 static const struct net_device_ops smc911x_netdev_ops = {
1753 .ndo_open = smc911x_open,
1754 .ndo_stop = smc911x_close,
1755 .ndo_start_xmit = smc911x_hard_start_xmit,
1756 .ndo_tx_timeout = smc911x_timeout,
1757 .ndo_set_rx_mode = smc911x_set_multicast_list,
1758 .ndo_change_mtu = eth_change_mtu,
1759 .ndo_validate_addr = eth_validate_addr,
1760 .ndo_set_mac_address = eth_mac_addr,
1761 #ifdef CONFIG_NET_POLL_CONTROLLER
1762 .ndo_poll_controller = smc911x_poll_controller,
1767 * Function: smc911x_probe(unsigned long ioaddr)
1770 * Tests to see if a given ioaddr points to an SMC911x chip.
1771 * Returns a 0 on success
1774 * (1) see if the endian word is OK
1775 * (1) see if I recognize the chip ID in the appropriate register
1777 * Here I do typical initialization tasks.
1779 * o Initialize the structure if needed
1780 * o print out my vanity message if not done so already
1781 * o print out what type of hardware is detected
1782 * o print out the ethernet address
1784 * o set up my private data
1785 * o configure the dev structure with my subroutines
1786 * o actually GRAB the irq.
1789 static int smc911x_probe(struct net_device *dev)
1791 struct smc911x_local *lp = netdev_priv(dev);
1793 unsigned int val, chip_id, revision;
1794 const char *version_string;
1795 unsigned long irq_flags;
1797 DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
1799 /* First, see if the endian word is recognized */
1800 val = SMC_GET_BYTE_TEST(lp);
1801 DBG(SMC_DEBUG_MISC, dev, "%s: endian probe returned 0x%04x\n",
1803 if (val != 0x87654321) {
1804 netdev_err(dev, "Invalid chip endian 0x%08x\n", val);
1810 * check if the revision register is something that I
1811 * recognize. These might need to be added to later,
1812 * as future revisions could be added.
1814 chip_id = SMC_GET_PN(lp);
1815 DBG(SMC_DEBUG_MISC, dev, "%s: id probe returned 0x%04x\n",
1817 for(i=0;chip_ids[i].id != 0; i++) {
1818 if (chip_ids[i].id == chip_id) break;
1820 if (!chip_ids[i].id) {
1821 netdev_err(dev, "Unknown chip ID %04x\n", chip_id);
1825 version_string = chip_ids[i].name;
1827 revision = SMC_GET_REV(lp);
1828 DBG(SMC_DEBUG_MISC, dev, "%s: revision = 0x%04x\n", CARDNAME, revision);
1830 /* At this point I'll assume that the chip is an SMC911x. */
1831 DBG(SMC_DEBUG_MISC, dev, "%s: Found a %s\n",
1832 CARDNAME, chip_ids[i].name);
1834 /* Validate the TX FIFO size requested */
1835 if ((tx_fifo_kb < 2) || (tx_fifo_kb > 14)) {
1836 netdev_err(dev, "Invalid TX FIFO size requested %d\n",
1842 /* fill in some of the fields */
1843 lp->version = chip_ids[i].id;
1844 lp->revision = revision;
1845 lp->tx_fifo_kb = tx_fifo_kb;
1846 /* Reverse calculate the RX FIFO size from the TX */
1847 lp->tx_fifo_size=(lp->tx_fifo_kb<<10) - 512;
1848 lp->rx_fifo_size= ((0x4000 - 512 - lp->tx_fifo_size) / 16) * 15;
1850 /* Set the automatic flow control values */
1851 switch(lp->tx_fifo_kb) {
1853 * AFC_HI is about ((Rx Data Fifo Size)*2/3)/64
1854 * AFC_LO is AFC_HI/2
1855 * BACK_DUR is about 5uS*(AFC_LO) rounded down
1857 case 2:/* 13440 Rx Data Fifo Size */
1858 lp->afc_cfg=0x008C46AF;break;
1859 case 3:/* 12480 Rx Data Fifo Size */
1860 lp->afc_cfg=0x0082419F;break;
1861 case 4:/* 11520 Rx Data Fifo Size */
1862 lp->afc_cfg=0x00783C9F;break;
1863 case 5:/* 10560 Rx Data Fifo Size */
1864 lp->afc_cfg=0x006E374F;break;
1865 case 6:/* 9600 Rx Data Fifo Size */
1866 lp->afc_cfg=0x0064328F;break;
1867 case 7:/* 8640 Rx Data Fifo Size */
1868 lp->afc_cfg=0x005A2D7F;break;
1869 case 8:/* 7680 Rx Data Fifo Size */
1870 lp->afc_cfg=0x0050287F;break;
1871 case 9:/* 6720 Rx Data Fifo Size */
1872 lp->afc_cfg=0x0046236F;break;
1873 case 10:/* 5760 Rx Data Fifo Size */
1874 lp->afc_cfg=0x003C1E6F;break;
1875 case 11:/* 4800 Rx Data Fifo Size */
1876 lp->afc_cfg=0x0032195F;break;
1878 * AFC_HI is ~1520 bytes less than RX Data Fifo Size
1879 * AFC_LO is AFC_HI/2
1880 * BACK_DUR is about 5uS*(AFC_LO) rounded down
1882 case 12:/* 3840 Rx Data Fifo Size */
1883 lp->afc_cfg=0x0024124F;break;
1884 case 13:/* 2880 Rx Data Fifo Size */
1885 lp->afc_cfg=0x0015073F;break;
1886 case 14:/* 1920 Rx Data Fifo Size */
1887 lp->afc_cfg=0x0006032F;break;
1889 PRINTK(dev, "ERROR -- no AFC_CFG setting found");
1893 DBG(SMC_DEBUG_MISC | SMC_DEBUG_TX | SMC_DEBUG_RX, dev,
1894 "%s: tx_fifo %d rx_fifo %d afc_cfg 0x%08x\n", CARDNAME,
1895 lp->tx_fifo_size, lp->rx_fifo_size, lp->afc_cfg);
1897 spin_lock_init(&lp->lock);
1899 /* Get the MAC address */
1900 SMC_GET_MAC_ADDR(lp, dev->dev_addr);
1902 /* now, reset the chip, and put it into a known state */
1906 * If dev->irq is 0, then the device has to be banged on to see
1909 * Specifying an IRQ is done with the assumption that the user knows
1910 * what (s)he is doing. No checking is done!!!!
1917 dev->irq = smc911x_findirq(dev);
1920 /* kick the card and try again */
1924 if (dev->irq == 0) {
1925 netdev_warn(dev, "Couldn't autodetect your IRQ. Use irq=xx.\n");
1929 dev->irq = irq_canonicalize(dev->irq);
1931 dev->netdev_ops = &smc911x_netdev_ops;
1932 dev->watchdog_timeo = msecs_to_jiffies(watchdog);
1933 dev->ethtool_ops = &smc911x_ethtool_ops;
1935 INIT_WORK(&lp->phy_configure, smc911x_phy_configure);
1936 lp->mii.phy_id_mask = 0x1f;
1937 lp->mii.reg_num_mask = 0x1f;
1938 lp->mii.force_media = 0;
1939 lp->mii.full_duplex = 0;
1941 lp->mii.mdio_read = smc911x_phy_read;
1942 lp->mii.mdio_write = smc911x_phy_write;
1945 * Locate the phy, if any.
1947 smc911x_phy_detect(dev);
1949 /* Set default parameters */
1950 lp->msg_enable = NETIF_MSG_LINK;
1951 lp->ctl_rfduplx = 1;
1952 lp->ctl_rspeed = 100;
1954 #ifdef SMC_DYNAMIC_BUS_CONFIG
1955 irq_flags = lp->cfg.irq_flags;
1957 irq_flags = IRQF_SHARED | SMC_IRQ_SENSE;
1961 retval = request_irq(dev->irq, smc911x_interrupt,
1962 irq_flags, dev->name, dev);
1967 lp->rxdma = SMC_DMA_REQUEST(dev, smc911x_rx_dma_irq);
1968 lp->txdma = SMC_DMA_REQUEST(dev, smc911x_tx_dma_irq);
1969 lp->rxdma_active = 0;
1970 lp->txdma_active = 0;
1971 dev->dma = lp->rxdma;
1974 retval = register_netdev(dev);
1976 /* now, print out the card info, in a short format.. */
1977 netdev_info(dev, "%s (rev %d) at %#lx IRQ %d",
1978 version_string, lp->revision,
1979 dev->base_addr, dev->irq);
1982 if (lp->rxdma != -1)
1983 pr_cont(" RXDMA %d", lp->rxdma);
1985 if (lp->txdma != -1)
1986 pr_cont(" TXDMA %d", lp->txdma);
1989 if (!is_valid_ether_addr(dev->dev_addr)) {
1990 netdev_warn(dev, "Invalid ethernet MAC address. Please set using ifconfig\n");
1992 /* Print the Ethernet address */
1993 netdev_info(dev, "Ethernet addr: %pM\n",
1997 if (lp->phy_type == 0) {
1998 PRINTK(dev, "No PHY found\n");
1999 } else if ((lp->phy_type & ~0xff) == LAN911X_INTERNAL_PHY_ID) {
2000 PRINTK(dev, "LAN911x Internal PHY\n");
2002 PRINTK(dev, "External PHY 0x%08x\n", lp->phy_type);
2009 if (lp->rxdma != -1) {
2010 SMC_DMA_FREE(dev, lp->rxdma);
2012 if (lp->txdma != -1) {
2013 SMC_DMA_FREE(dev, lp->txdma);
2021 * smc911x_drv_probe(void)
2024 * 0 --> there is a device
2025 * anything else, error
2027 static int smc911x_drv_probe(struct platform_device *pdev)
2029 struct net_device *ndev;
2030 struct resource *res;
2031 struct smc911x_local *lp;
2035 /* ndev is not valid yet, so avoid passing it in. */
2036 DBG(SMC_DEBUG_FUNC, "--> %s\n", __func__);
2037 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2044 * Request the regions.
2046 if (!request_mem_region(res->start, SMC911X_IO_EXTENT, CARDNAME)) {
2051 ndev = alloc_etherdev(sizeof(struct smc911x_local));
2056 SET_NETDEV_DEV(ndev, &pdev->dev);
2058 ndev->dma = (unsigned char)-1;
2059 ndev->irq = platform_get_irq(pdev, 0);
2060 if (ndev->irq < 0) {
2065 lp = netdev_priv(ndev);
2067 #ifdef SMC_DYNAMIC_BUS_CONFIG
2069 struct smc911x_platdata *pd = dev_get_platdata(&pdev->dev);
2074 memcpy(&lp->cfg, pd, sizeof(lp->cfg));
2078 addr = ioremap(res->start, SMC911X_IO_EXTENT);
2084 platform_set_drvdata(pdev, ndev);
2086 ndev->base_addr = res->start;
2087 ret = smc911x_probe(ndev);
2093 release_mem_region(res->start, SMC911X_IO_EXTENT);
2095 pr_info("%s: not found (%d).\n", CARDNAME, ret);
2099 lp->physaddr = res->start;
2100 lp->dev = &pdev->dev;
2107 static int smc911x_drv_remove(struct platform_device *pdev)
2109 struct net_device *ndev = platform_get_drvdata(pdev);
2110 struct smc911x_local *lp = netdev_priv(ndev);
2111 struct resource *res;
2113 DBG(SMC_DEBUG_FUNC, ndev, "--> %s\n", __func__);
2115 unregister_netdev(ndev);
2117 free_irq(ndev->irq, ndev);
2121 if (lp->rxdma != -1) {
2122 SMC_DMA_FREE(dev, lp->rxdma);
2124 if (lp->txdma != -1) {
2125 SMC_DMA_FREE(dev, lp->txdma);
2130 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2131 release_mem_region(res->start, SMC911X_IO_EXTENT);
2137 static int smc911x_drv_suspend(struct platform_device *dev, pm_message_t state)
2139 struct net_device *ndev = platform_get_drvdata(dev);
2140 struct smc911x_local *lp = netdev_priv(ndev);
2142 DBG(SMC_DEBUG_FUNC, ndev, "--> %s\n", __func__);
2144 if (netif_running(ndev)) {
2145 netif_device_detach(ndev);
2146 smc911x_shutdown(ndev);
2148 /* Set D2 - Energy detect only setting */
2149 SMC_SET_PMT_CTRL(lp, 2<<12);
2156 static int smc911x_drv_resume(struct platform_device *dev)
2158 struct net_device *ndev = platform_get_drvdata(dev);
2160 DBG(SMC_DEBUG_FUNC, ndev, "--> %s\n", __func__);
2162 struct smc911x_local *lp = netdev_priv(ndev);
2164 if (netif_running(ndev)) {
2165 smc911x_reset(ndev);
2166 if (lp->phy_type != 0)
2167 smc911x_phy_configure(&lp->phy_configure);
2168 smc911x_enable(ndev);
2169 netif_device_attach(ndev);
2175 static struct platform_driver smc911x_driver = {
2176 .probe = smc911x_drv_probe,
2177 .remove = smc911x_drv_remove,
2178 .suspend = smc911x_drv_suspend,
2179 .resume = smc911x_drv_resume,
2185 module_platform_driver(smc911x_driver);