1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * This is a driver for SMSC's LAN911{5,6,7,8} single-chip Ethernet devices.
6 * Copyright (C) 2005 Sensoria Corp
7 * Derived from the unified SMC91x driver by Nicolas Pitre
8 * and the smsc911x.c reference driver by SMSC
11 * watchdog = TX watchdog timeout
12 * tx_fifo_kb = Size of TX FIFO in KB
15 * 04/16/05 Dustin McIntire Initial version
17 static const char version[] =
18 "smc911x.c: v1.0 04-16-2005 by Dustin McIntire <dustin@sensoria.com>\n";
20 /* Debugging options */
21 #define ENABLE_SMC_DEBUG_RX 0
22 #define ENABLE_SMC_DEBUG_TX 0
23 #define ENABLE_SMC_DEBUG_DMA 0
24 #define ENABLE_SMC_DEBUG_PKTS 0
25 #define ENABLE_SMC_DEBUG_MISC 0
26 #define ENABLE_SMC_DEBUG_FUNC 0
28 #define SMC_DEBUG_RX ((ENABLE_SMC_DEBUG_RX ? 1 : 0) << 0)
29 #define SMC_DEBUG_TX ((ENABLE_SMC_DEBUG_TX ? 1 : 0) << 1)
30 #define SMC_DEBUG_DMA ((ENABLE_SMC_DEBUG_DMA ? 1 : 0) << 2)
31 #define SMC_DEBUG_PKTS ((ENABLE_SMC_DEBUG_PKTS ? 1 : 0) << 3)
32 #define SMC_DEBUG_MISC ((ENABLE_SMC_DEBUG_MISC ? 1 : 0) << 4)
33 #define SMC_DEBUG_FUNC ((ENABLE_SMC_DEBUG_FUNC ? 1 : 0) << 5)
36 #define SMC_DEBUG ( SMC_DEBUG_RX | \
45 #include <linux/module.h>
46 #include <linux/kernel.h>
47 #include <linux/sched.h>
48 #include <linux/delay.h>
49 #include <linux/interrupt.h>
50 #include <linux/errno.h>
51 #include <linux/ioport.h>
52 #include <linux/crc32.h>
53 #include <linux/device.h>
54 #include <linux/platform_device.h>
55 #include <linux/spinlock.h>
56 #include <linux/ethtool.h>
57 #include <linux/mii.h>
58 #include <linux/workqueue.h>
60 #include <linux/netdevice.h>
61 #include <linux/etherdevice.h>
62 #include <linux/skbuff.h>
64 #include <linux/dmaengine.h>
71 * Transmit timeout, default 5 seconds.
73 static int watchdog = 5000;
74 module_param(watchdog, int, 0400);
75 MODULE_PARM_DESC(watchdog, "transmit timeout in milliseconds");
77 static int tx_fifo_kb=8;
78 module_param(tx_fifo_kb, int, 0400);
79 MODULE_PARM_DESC(tx_fifo_kb,"transmit FIFO size in KB (1<x<15)(default=8)");
81 MODULE_LICENSE("GPL");
82 MODULE_ALIAS("platform:smc911x");
85 * The internal workings of the driver. If you are changing anything
86 * here with the SMC stuff, you should have the datasheet and know
89 #define CARDNAME "smc911x"
92 * Use power-down feature of the chip
97 #define DBG(n, dev, args...) \
99 if (SMC_DEBUG & (n)) \
100 netdev_dbg(dev, args); \
103 #define PRINTK(dev, args...) netdev_info(dev, args)
105 #define DBG(n, dev, args...) \
107 netdev_dbg(dev, args); \
109 #define PRINTK(dev, args...) netdev_dbg(dev, args)
112 #if SMC_DEBUG_PKTS > 0
113 static void PRINT_PKT(u_char *buf, int length)
120 remainder = length % 16;
122 for (i = 0; i < lines ; i ++) {
125 for (cur = 0; cur < 8; cur++) {
129 pr_cont("%02x%02x ", a, b);
134 for (i = 0; i < remainder/2 ; i++) {
138 pr_cont("%02x%02x ", a, b);
143 #define PRINT_PKT(x...) do { } while (0)
147 /* this enables an interrupt in the interrupt mask register */
148 #define SMC_ENABLE_INT(lp, x) do { \
149 unsigned int __mask; \
150 __mask = SMC_GET_INT_EN((lp)); \
152 SMC_SET_INT_EN((lp), __mask); \
155 /* this disables an interrupt from the interrupt mask register */
156 #define SMC_DISABLE_INT(lp, x) do { \
157 unsigned int __mask; \
158 __mask = SMC_GET_INT_EN((lp)); \
160 SMC_SET_INT_EN((lp), __mask); \
164 * this does a soft reset on the device
166 static void smc911x_reset(struct net_device *dev)
168 struct smc911x_local *lp = netdev_priv(dev);
169 unsigned int reg, timeout=0, resets=1, irq_cfg;
172 DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
174 /* Take out of PM setting first */
175 if ((SMC_GET_PMT_CTRL(lp) & PMT_CTRL_READY_) == 0) {
176 /* Write to the bytetest will take out of powerdown */
177 SMC_SET_BYTE_TEST(lp, 0);
181 reg = SMC_GET_PMT_CTRL(lp) & PMT_CTRL_READY_;
182 } while (--timeout && !reg);
184 PRINTK(dev, "smc911x_reset timeout waiting for PM restore\n");
189 /* Disable all interrupts */
190 spin_lock_irqsave(&lp->lock, flags);
191 SMC_SET_INT_EN(lp, 0);
192 spin_unlock_irqrestore(&lp->lock, flags);
195 SMC_SET_HW_CFG(lp, HW_CFG_SRST_);
199 reg = SMC_GET_HW_CFG(lp);
200 /* If chip indicates reset timeout then try again */
201 if (reg & HW_CFG_SRST_TO_) {
202 PRINTK(dev, "chip reset timeout, retrying...\n");
206 } while (--timeout && (reg & HW_CFG_SRST_));
209 PRINTK(dev, "smc911x_reset timeout waiting for reset\n");
213 /* make sure EEPROM has finished loading before setting GPIO_CFG */
215 while (--timeout && (SMC_GET_E2P_CMD(lp) & E2P_CMD_EPC_BUSY_))
219 PRINTK(dev, "smc911x_reset timeout waiting for EEPROM busy\n");
223 /* Initialize interrupts */
224 SMC_SET_INT_EN(lp, 0);
227 /* Reset the FIFO level and flow control settings */
228 SMC_SET_HW_CFG(lp, (lp->tx_fifo_kb & 0xF) << 16);
229 //TODO: Figure out what appropriate pause time is
230 SMC_SET_FLOW(lp, FLOW_FCPT_ | FLOW_FCEN_);
231 SMC_SET_AFC_CFG(lp, lp->afc_cfg);
234 /* Set to LED outputs */
235 SMC_SET_GPIO_CFG(lp, 0x70070000);
238 * Deassert IRQ for 1*10us for edge type interrupts
239 * and drive IRQ pin push-pull
241 irq_cfg = (1 << 24) | INT_CFG_IRQ_EN_ | INT_CFG_IRQ_TYPE_;
242 #ifdef SMC_DYNAMIC_BUS_CONFIG
243 if (lp->cfg.irq_polarity)
244 irq_cfg |= INT_CFG_IRQ_POL_;
246 SMC_SET_IRQ_CFG(lp, irq_cfg);
248 /* clear anything saved */
249 if (lp->pending_tx_skb != NULL) {
250 dev_kfree_skb (lp->pending_tx_skb);
251 lp->pending_tx_skb = NULL;
252 dev->stats.tx_errors++;
253 dev->stats.tx_aborted_errors++;
258 * Enable Interrupts, Receive, and Transmit
260 static void smc911x_enable(struct net_device *dev)
262 struct smc911x_local *lp = netdev_priv(dev);
263 unsigned mask, cfg, cr;
266 DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
268 spin_lock_irqsave(&lp->lock, flags);
270 SMC_SET_MAC_ADDR(lp, dev->dev_addr);
273 cfg = SMC_GET_HW_CFG(lp);
274 cfg &= HW_CFG_TX_FIF_SZ_ | 0xFFF;
276 SMC_SET_HW_CFG(lp, cfg);
277 SMC_SET_FIFO_TDA(lp, 0xFF);
278 /* Update TX stats on every 64 packets received or every 1 sec */
279 SMC_SET_FIFO_TSL(lp, 64);
280 SMC_SET_GPT_CFG(lp, GPT_CFG_TIMER_EN_ | 10000);
282 SMC_GET_MAC_CR(lp, cr);
283 cr |= MAC_CR_TXEN_ | MAC_CR_HBDIS_;
284 SMC_SET_MAC_CR(lp, cr);
285 SMC_SET_TX_CFG(lp, TX_CFG_TX_ON_);
287 /* Add 2 byte padding to start of packets */
288 SMC_SET_RX_CFG(lp, (2<<8) & RX_CFG_RXDOFF_);
290 /* Turn on receiver and enable RX */
291 if (cr & MAC_CR_RXEN_)
292 DBG(SMC_DEBUG_RX, dev, "Receiver already enabled\n");
294 SMC_SET_MAC_CR(lp, cr | MAC_CR_RXEN_);
296 /* Interrupt on every received packet */
297 SMC_SET_FIFO_RSA(lp, 0x01);
298 SMC_SET_FIFO_RSL(lp, 0x00);
300 /* now, enable interrupts */
301 mask = INT_EN_TDFA_EN_ | INT_EN_TSFL_EN_ | INT_EN_RSFL_EN_ |
302 INT_EN_GPT_INT_EN_ | INT_EN_RXDFH_INT_EN_ | INT_EN_RXE_EN_ |
304 if (IS_REV_A(lp->revision))
305 mask|=INT_EN_RDFL_EN_;
307 mask|=INT_EN_RDFO_EN_;
309 SMC_ENABLE_INT(lp, mask);
311 spin_unlock_irqrestore(&lp->lock, flags);
315 * this puts the device in an inactive state
317 static void smc911x_shutdown(struct net_device *dev)
319 struct smc911x_local *lp = netdev_priv(dev);
323 DBG(SMC_DEBUG_FUNC, dev, "%s: --> %s\n", CARDNAME, __func__);
326 SMC_SET_INT_EN(lp, 0);
328 /* Turn of Rx and TX */
329 spin_lock_irqsave(&lp->lock, flags);
330 SMC_GET_MAC_CR(lp, cr);
331 cr &= ~(MAC_CR_TXEN_ | MAC_CR_RXEN_ | MAC_CR_HBDIS_);
332 SMC_SET_MAC_CR(lp, cr);
333 SMC_SET_TX_CFG(lp, TX_CFG_STOP_TX_);
334 spin_unlock_irqrestore(&lp->lock, flags);
337 static inline void smc911x_drop_pkt(struct net_device *dev)
339 struct smc911x_local *lp = netdev_priv(dev);
340 unsigned int fifo_count, timeout, reg;
342 DBG(SMC_DEBUG_FUNC | SMC_DEBUG_RX, dev, "%s: --> %s\n",
344 fifo_count = SMC_GET_RX_FIFO_INF(lp) & 0xFFFF;
345 if (fifo_count <= 4) {
346 /* Manually dump the packet data */
350 /* Fast forward through the bad packet */
351 SMC_SET_RX_DP_CTRL(lp, RX_DP_CTRL_FFWD_BUSY_);
355 reg = SMC_GET_RX_DP_CTRL(lp) & RX_DP_CTRL_FFWD_BUSY_;
356 } while (--timeout && reg);
358 PRINTK(dev, "timeout waiting for RX fast forward\n");
364 * This is the procedure to handle the receipt of a packet.
365 * It should be called after checking for packet presence in
366 * the RX status FIFO. It must be called with the spin lock
369 static inline void smc911x_rcv(struct net_device *dev)
371 struct smc911x_local *lp = netdev_priv(dev);
372 unsigned int pkt_len, status;
376 DBG(SMC_DEBUG_FUNC | SMC_DEBUG_RX, dev, "--> %s\n",
378 status = SMC_GET_RX_STS_FIFO(lp);
379 DBG(SMC_DEBUG_RX, dev, "Rx pkt len %d status 0x%08x\n",
380 (status & 0x3fff0000) >> 16, status & 0xc000ffff);
381 pkt_len = (status & RX_STS_PKT_LEN_) >> 16;
382 if (status & RX_STS_ES_) {
383 /* Deal with a bad packet */
384 dev->stats.rx_errors++;
385 if (status & RX_STS_CRC_ERR_)
386 dev->stats.rx_crc_errors++;
388 if (status & RX_STS_LEN_ERR_)
389 dev->stats.rx_length_errors++;
390 if (status & RX_STS_MCAST_)
391 dev->stats.multicast++;
393 /* Remove the bad packet data from the RX FIFO */
394 smc911x_drop_pkt(dev);
396 /* Receive a valid packet */
397 /* Alloc a buffer with extra room for DMA alignment */
398 skb = netdev_alloc_skb(dev, pkt_len+32);
399 if (unlikely(skb == NULL)) {
400 PRINTK(dev, "Low memory, rcvd packet dropped.\n");
401 dev->stats.rx_dropped++;
402 smc911x_drop_pkt(dev);
405 /* Align IP header to 32 bits
406 * Note that the device is configured to add a 2
407 * byte padding to the packet start, so we really
408 * want to write to the orignal data pointer */
411 skb_put(skb,pkt_len-4);
415 /* Lower the FIFO threshold if possible */
416 fifo = SMC_GET_FIFO_INT(lp);
417 if (fifo & 0xFF) fifo--;
418 DBG(SMC_DEBUG_RX, dev, "Setting RX stat FIFO threshold to %d\n",
420 SMC_SET_FIFO_INT(lp, fifo);
422 SMC_SET_RX_CFG(lp, RX_CFG_RX_END_ALGN16_ | ((2<<8) & RX_CFG_RXDOFF_));
423 lp->rxdma_active = 1;
424 lp->current_rx_skb = skb;
425 SMC_PULL_DATA(lp, data, (pkt_len+2+15) & ~15);
426 /* Packet processing deferred to DMA RX interrupt */
429 SMC_SET_RX_CFG(lp, RX_CFG_RX_END_ALGN4_ | ((2<<8) & RX_CFG_RXDOFF_));
430 SMC_PULL_DATA(lp, data, pkt_len+2+3);
432 DBG(SMC_DEBUG_PKTS, dev, "Received packet\n");
433 PRINT_PKT(data, ((pkt_len - 4) <= 64) ? pkt_len - 4 : 64);
434 skb->protocol = eth_type_trans(skb, dev);
436 dev->stats.rx_packets++;
437 dev->stats.rx_bytes += pkt_len-4;
443 * This is called to actually send a packet to the chip.
445 static void smc911x_hardware_send_pkt(struct net_device *dev)
447 struct smc911x_local *lp = netdev_priv(dev);
449 unsigned int cmdA, cmdB, len;
452 DBG(SMC_DEBUG_FUNC | SMC_DEBUG_TX, dev, "--> %s\n", __func__);
453 BUG_ON(lp->pending_tx_skb == NULL);
455 skb = lp->pending_tx_skb;
456 lp->pending_tx_skb = NULL;
458 /* cmdA {25:24] data alignment [20:16] start offset [10:0] buffer length */
459 /* cmdB {31:16] pkt tag [10:0] length */
461 /* 16 byte buffer alignment mode */
462 buf = (char*)((u32)(skb->data) & ~0xF);
463 len = (skb->len + 0xF + ((u32)skb->data & 0xF)) & ~0xF;
464 cmdA = (1<<24) | (((u32)skb->data & 0xF)<<16) |
465 TX_CMD_A_INT_FIRST_SEG_ | TX_CMD_A_INT_LAST_SEG_ |
468 buf = (char *)((uintptr_t)skb->data & ~0x3);
469 len = (skb->len + 3 + ((uintptr_t)skb->data & 3)) & ~0x3;
470 cmdA = (((uintptr_t)skb->data & 0x3) << 16) |
471 TX_CMD_A_INT_FIRST_SEG_ | TX_CMD_A_INT_LAST_SEG_ |
474 /* tag is packet length so we can use this in stats update later */
475 cmdB = (skb->len << 16) | (skb->len & 0x7FF);
477 DBG(SMC_DEBUG_TX, dev, "TX PKT LENGTH 0x%04x (%d) BUF 0x%p CMDA 0x%08x CMDB 0x%08x\n",
478 len, len, buf, cmdA, cmdB);
479 SMC_SET_TX_FIFO(lp, cmdA);
480 SMC_SET_TX_FIFO(lp, cmdB);
482 DBG(SMC_DEBUG_PKTS, dev, "Transmitted packet\n");
483 PRINT_PKT(buf, len <= 64 ? len : 64);
485 /* Send pkt via PIO or DMA */
487 lp->current_tx_skb = skb;
488 SMC_PUSH_DATA(lp, buf, len);
489 /* DMA complete IRQ will free buffer and set jiffies */
491 SMC_PUSH_DATA(lp, buf, len);
492 netif_trans_update(dev);
493 dev_kfree_skb_irq(skb);
495 if (!lp->tx_throttle) {
496 netif_wake_queue(dev);
498 SMC_ENABLE_INT(lp, INT_EN_TDFA_EN_ | INT_EN_TSFL_EN_);
502 * Since I am not sure if I will have enough room in the chip's ram
503 * to store the packet, I call this routine which either sends it
504 * now, or set the card to generates an interrupt when ready
508 smc911x_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
510 struct smc911x_local *lp = netdev_priv(dev);
514 DBG(SMC_DEBUG_FUNC | SMC_DEBUG_TX, dev, "--> %s\n",
517 spin_lock_irqsave(&lp->lock, flags);
519 BUG_ON(lp->pending_tx_skb != NULL);
521 free = SMC_GET_TX_FIFO_INF(lp) & TX_FIFO_INF_TDFREE_;
522 DBG(SMC_DEBUG_TX, dev, "TX free space %d\n", free);
524 /* Turn off the flow when running out of space in FIFO */
525 if (free <= SMC911X_TX_FIFO_LOW_THRESHOLD) {
526 DBG(SMC_DEBUG_TX, dev, "Disabling data flow due to low FIFO space (%d)\n",
528 /* Reenable when at least 1 packet of size MTU present */
529 SMC_SET_FIFO_TDA(lp, (SMC911X_TX_FIFO_LOW_THRESHOLD)/64);
531 netif_stop_queue(dev);
534 /* Drop packets when we run out of space in TX FIFO
535 * Account for overhead required for:
537 * Tx command words 8 bytes
538 * Start offset 15 bytes
539 * End padding 15 bytes
541 if (unlikely(free < (skb->len + 8 + 15 + 15))) {
542 netdev_warn(dev, "No Tx free space %d < %d\n",
544 lp->pending_tx_skb = NULL;
545 dev->stats.tx_errors++;
546 dev->stats.tx_dropped++;
547 spin_unlock_irqrestore(&lp->lock, flags);
548 dev_kfree_skb_any(skb);
554 /* If the DMA is already running then defer this packet Tx until
555 * the DMA IRQ starts it
557 if (lp->txdma_active) {
558 DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, dev, "Tx DMA running, deferring packet\n");
559 lp->pending_tx_skb = skb;
560 netif_stop_queue(dev);
561 spin_unlock_irqrestore(&lp->lock, flags);
564 DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, dev, "Activating Tx DMA\n");
565 lp->txdma_active = 1;
569 lp->pending_tx_skb = skb;
570 smc911x_hardware_send_pkt(dev);
571 spin_unlock_irqrestore(&lp->lock, flags);
577 * This handles a TX status interrupt, which is only called when:
578 * - a TX error occurred, or
579 * - TX of a packet completed.
581 static void smc911x_tx(struct net_device *dev)
583 struct smc911x_local *lp = netdev_priv(dev);
584 unsigned int tx_status;
586 DBG(SMC_DEBUG_FUNC | SMC_DEBUG_TX, dev, "--> %s\n",
589 /* Collect the TX status */
590 while (((SMC_GET_TX_FIFO_INF(lp) & TX_FIFO_INF_TSUSED_) >> 16) != 0) {
591 DBG(SMC_DEBUG_TX, dev, "Tx stat FIFO used 0x%04x\n",
592 (SMC_GET_TX_FIFO_INF(lp) & TX_FIFO_INF_TSUSED_) >> 16);
593 tx_status = SMC_GET_TX_STS_FIFO(lp);
594 dev->stats.tx_packets++;
595 dev->stats.tx_bytes+=tx_status>>16;
596 DBG(SMC_DEBUG_TX, dev, "Tx FIFO tag 0x%04x status 0x%04x\n",
597 (tx_status & 0xffff0000) >> 16,
598 tx_status & 0x0000ffff);
599 /* count Tx errors, but ignore lost carrier errors when in
600 * full-duplex mode */
601 if ((tx_status & TX_STS_ES_) && !(lp->ctl_rfduplx &&
602 !(tx_status & 0x00000306))) {
603 dev->stats.tx_errors++;
605 if (tx_status & TX_STS_MANY_COLL_) {
606 dev->stats.collisions+=16;
607 dev->stats.tx_aborted_errors++;
609 dev->stats.collisions+=(tx_status & TX_STS_COLL_CNT_) >> 3;
611 /* carrier error only has meaning for half-duplex communication */
612 if ((tx_status & (TX_STS_LOC_ | TX_STS_NO_CARR_)) &&
614 dev->stats.tx_carrier_errors++;
616 if (tx_status & TX_STS_LATE_COLL_) {
617 dev->stats.collisions++;
618 dev->stats.tx_aborted_errors++;
624 /*---PHY CONTROL AND CONFIGURATION-----------------------------------------*/
626 * Reads a register from the MII Management serial interface
629 static int smc911x_phy_read(struct net_device *dev, int phyaddr, int phyreg)
631 struct smc911x_local *lp = netdev_priv(dev);
632 unsigned int phydata;
634 SMC_GET_MII(lp, phyreg, phyaddr, phydata);
636 DBG(SMC_DEBUG_MISC, dev, "%s: phyaddr=0x%x, phyreg=0x%02x, phydata=0x%04x\n",
637 __func__, phyaddr, phyreg, phydata);
643 * Writes a register to the MII Management serial interface
645 static void smc911x_phy_write(struct net_device *dev, int phyaddr, int phyreg,
648 struct smc911x_local *lp = netdev_priv(dev);
650 DBG(SMC_DEBUG_MISC, dev, "%s: phyaddr=0x%x, phyreg=0x%x, phydata=0x%x\n",
651 __func__, phyaddr, phyreg, phydata);
653 SMC_SET_MII(lp, phyreg, phyaddr, phydata);
657 * Finds and reports the PHY address (115 and 117 have external
658 * PHY interface 118 has internal only
660 static void smc911x_phy_detect(struct net_device *dev)
662 struct smc911x_local *lp = netdev_priv(dev);
664 unsigned int cfg, id1, id2;
666 DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
671 * Scan all 32 PHY addresses if necessary, starting at
672 * PHY#1 to PHY#31, and then PHY#0 last.
674 switch(lp->version) {
679 cfg = SMC_GET_HW_CFG(lp);
680 if (cfg & HW_CFG_EXT_PHY_DET_) {
681 cfg &= ~HW_CFG_PHY_CLK_SEL_;
682 cfg |= HW_CFG_PHY_CLK_SEL_CLK_DIS_;
683 SMC_SET_HW_CFG(lp, cfg);
684 udelay(10); /* Wait for clocks to stop */
686 cfg |= HW_CFG_EXT_PHY_EN_;
687 SMC_SET_HW_CFG(lp, cfg);
688 udelay(10); /* Wait for clocks to stop */
690 cfg &= ~HW_CFG_PHY_CLK_SEL_;
691 cfg |= HW_CFG_PHY_CLK_SEL_EXT_PHY_;
692 SMC_SET_HW_CFG(lp, cfg);
693 udelay(10); /* Wait for clocks to stop */
695 cfg |= HW_CFG_SMI_SEL_;
696 SMC_SET_HW_CFG(lp, cfg);
698 for (phyaddr = 1; phyaddr < 32; ++phyaddr) {
700 /* Read the PHY identifiers */
701 SMC_GET_PHY_ID1(lp, phyaddr & 31, id1);
702 SMC_GET_PHY_ID2(lp, phyaddr & 31, id2);
704 /* Make sure it is a valid identifier */
705 if (id1 != 0x0000 && id1 != 0xffff &&
706 id1 != 0x8000 && id2 != 0x0000 &&
707 id2 != 0xffff && id2 != 0x8000) {
708 /* Save the PHY's address */
709 lp->mii.phy_id = phyaddr & 31;
710 lp->phy_type = id1 << 16 | id2;
715 /* Found an external PHY */
720 /* Internal media only */
721 SMC_GET_PHY_ID1(lp, 1, id1);
722 SMC_GET_PHY_ID2(lp, 1, id2);
723 /* Save the PHY's address */
725 lp->phy_type = id1 << 16 | id2;
728 DBG(SMC_DEBUG_MISC, dev, "phy_id1=0x%x, phy_id2=0x%x phyaddr=0x%x\n",
729 id1, id2, lp->mii.phy_id);
733 * Sets the PHY to a configuration as determined by the user.
734 * Called with spin_lock held.
736 static int smc911x_phy_fixed(struct net_device *dev)
738 struct smc911x_local *lp = netdev_priv(dev);
739 int phyaddr = lp->mii.phy_id;
742 DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
744 /* Enter Link Disable state */
745 SMC_GET_PHY_BMCR(lp, phyaddr, bmcr);
747 SMC_SET_PHY_BMCR(lp, phyaddr, bmcr);
750 * Set our fixed capabilities
751 * Disable auto-negotiation
753 bmcr &= ~BMCR_ANENABLE;
755 bmcr |= BMCR_FULLDPLX;
757 if (lp->ctl_rspeed == 100)
758 bmcr |= BMCR_SPEED100;
760 /* Write our capabilities to the phy control register */
761 SMC_SET_PHY_BMCR(lp, phyaddr, bmcr);
763 /* Re-Configure the Receive/Phy Control register */
765 SMC_SET_PHY_BMCR(lp, phyaddr, bmcr);
771 * smc911x_phy_reset - reset the phy
775 * Issue a software reset for the specified PHY and
776 * wait up to 100ms for the reset to complete. We should
777 * not access the PHY for 50ms after issuing the reset.
779 * The time to wait appears to be dependent on the PHY.
782 static int smc911x_phy_reset(struct net_device *dev, int phy)
784 struct smc911x_local *lp = netdev_priv(dev);
789 DBG(SMC_DEBUG_FUNC, dev, "--> %s()\n", __func__);
791 spin_lock_irqsave(&lp->lock, flags);
792 reg = SMC_GET_PMT_CTRL(lp);
794 reg |= PMT_CTRL_PHY_RST_;
795 SMC_SET_PMT_CTRL(lp, reg);
796 spin_unlock_irqrestore(&lp->lock, flags);
797 for (timeout = 2; timeout; timeout--) {
799 spin_lock_irqsave(&lp->lock, flags);
800 reg = SMC_GET_PMT_CTRL(lp);
801 spin_unlock_irqrestore(&lp->lock, flags);
802 if (!(reg & PMT_CTRL_PHY_RST_)) {
803 /* extra delay required because the phy may
804 * not be completed with its reset
805 * when PHY_BCR_RESET_ is cleared. 256us
806 * should suffice, but use 500us to be safe
813 return reg & PMT_CTRL_PHY_RST_;
817 * smc911x_phy_powerdown - powerdown phy
821 * Power down the specified PHY
823 static void smc911x_phy_powerdown(struct net_device *dev, int phy)
825 struct smc911x_local *lp = netdev_priv(dev);
828 /* Enter Link Disable state */
829 SMC_GET_PHY_BMCR(lp, phy, bmcr);
831 SMC_SET_PHY_BMCR(lp, phy, bmcr);
835 * smc911x_phy_check_media - check the media status and adjust BMCR
837 * @init: set true for initialisation
839 * Select duplex mode depending on negotiation state. This
840 * also updates our carrier state.
842 static void smc911x_phy_check_media(struct net_device *dev, int init)
844 struct smc911x_local *lp = netdev_priv(dev);
845 int phyaddr = lp->mii.phy_id;
846 unsigned int bmcr, cr;
848 DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
850 if (mii_check_media(&lp->mii, netif_msg_link(lp), init)) {
851 /* duplex state has changed */
852 SMC_GET_PHY_BMCR(lp, phyaddr, bmcr);
853 SMC_GET_MAC_CR(lp, cr);
854 if (lp->mii.full_duplex) {
855 DBG(SMC_DEBUG_MISC, dev, "Configuring for full-duplex mode\n");
856 bmcr |= BMCR_FULLDPLX;
857 cr |= MAC_CR_RCVOWN_;
859 DBG(SMC_DEBUG_MISC, dev, "Configuring for half-duplex mode\n");
860 bmcr &= ~BMCR_FULLDPLX;
861 cr &= ~MAC_CR_RCVOWN_;
863 SMC_SET_PHY_BMCR(lp, phyaddr, bmcr);
864 SMC_SET_MAC_CR(lp, cr);
869 * Configures the specified PHY through the MII management interface
870 * using Autonegotiation.
871 * Calls smc911x_phy_fixed() if the user has requested a certain config.
872 * If RPC ANEG bit is set, the media selection is dependent purely on
873 * the selection by the MII (either in the MII BMCR reg or the result
874 * of autonegotiation.) If the RPC ANEG bit is cleared, the selection
875 * is controlled by the RPC SPEED and RPC DPLX bits.
877 static void smc911x_phy_configure(struct work_struct *work)
879 struct smc911x_local *lp = container_of(work, struct smc911x_local,
881 struct net_device *dev = lp->netdev;
882 int phyaddr = lp->mii.phy_id;
883 int my_phy_caps; /* My PHY capabilities */
884 int my_ad_caps; /* My Advertised capabilities */
885 int status __always_unused;
888 DBG(SMC_DEBUG_FUNC, dev, "--> %s()\n", __func__);
891 * We should not be called if phy_type is zero.
893 if (lp->phy_type == 0)
896 if (smc911x_phy_reset(dev, phyaddr)) {
897 netdev_info(dev, "PHY reset timed out\n");
900 spin_lock_irqsave(&lp->lock, flags);
903 * Enable PHY Interrupts (for register 18)
904 * Interrupts listed here are enabled
906 SMC_SET_PHY_INT_MASK(lp, phyaddr, PHY_INT_MASK_ENERGY_ON_ |
907 PHY_INT_MASK_ANEG_COMP_ | PHY_INT_MASK_REMOTE_FAULT_ |
908 PHY_INT_MASK_LINK_DOWN_);
910 /* If the user requested no auto neg, then go set his request */
911 if (lp->mii.force_media) {
912 smc911x_phy_fixed(dev);
913 goto smc911x_phy_configure_exit;
916 /* Copy our capabilities from MII_BMSR to MII_ADVERTISE */
917 SMC_GET_PHY_BMSR(lp, phyaddr, my_phy_caps);
918 if (!(my_phy_caps & BMSR_ANEGCAPABLE)) {
919 netdev_info(dev, "Auto negotiation NOT supported\n");
920 smc911x_phy_fixed(dev);
921 goto smc911x_phy_configure_exit;
924 /* CSMA capable w/ both pauses */
925 my_ad_caps = ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
927 if (my_phy_caps & BMSR_100BASE4)
928 my_ad_caps |= ADVERTISE_100BASE4;
929 if (my_phy_caps & BMSR_100FULL)
930 my_ad_caps |= ADVERTISE_100FULL;
931 if (my_phy_caps & BMSR_100HALF)
932 my_ad_caps |= ADVERTISE_100HALF;
933 if (my_phy_caps & BMSR_10FULL)
934 my_ad_caps |= ADVERTISE_10FULL;
935 if (my_phy_caps & BMSR_10HALF)
936 my_ad_caps |= ADVERTISE_10HALF;
938 /* Disable capabilities not selected by our user */
939 if (lp->ctl_rspeed != 100)
940 my_ad_caps &= ~(ADVERTISE_100BASE4|ADVERTISE_100FULL|ADVERTISE_100HALF);
942 if (!lp->ctl_rfduplx)
943 my_ad_caps &= ~(ADVERTISE_100FULL|ADVERTISE_10FULL);
945 /* Update our Auto-Neg Advertisement Register */
946 SMC_SET_PHY_MII_ADV(lp, phyaddr, my_ad_caps);
947 lp->mii.advertising = my_ad_caps;
950 * Read the register back. Without this, it appears that when
951 * auto-negotiation is restarted, sometimes it isn't ready and
952 * the link does not come up.
955 SMC_GET_PHY_MII_ADV(lp, phyaddr, status);
957 DBG(SMC_DEBUG_MISC, dev, "phy caps=0x%04x\n", my_phy_caps);
958 DBG(SMC_DEBUG_MISC, dev, "phy advertised caps=0x%04x\n", my_ad_caps);
960 /* Restart auto-negotiation process in order to advertise my caps */
961 SMC_SET_PHY_BMCR(lp, phyaddr, BMCR_ANENABLE | BMCR_ANRESTART);
963 smc911x_phy_check_media(dev, 1);
965 smc911x_phy_configure_exit:
966 spin_unlock_irqrestore(&lp->lock, flags);
970 * smc911x_phy_interrupt
972 * Purpose: Handle interrupts relating to PHY register 18. This is
973 * called from the "hard" interrupt handler under our private spinlock.
975 static void smc911x_phy_interrupt(struct net_device *dev)
977 struct smc911x_local *lp = netdev_priv(dev);
978 int phyaddr = lp->mii.phy_id;
979 int status __always_unused;
981 DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
983 if (lp->phy_type == 0)
986 smc911x_phy_check_media(dev, 0);
987 /* read to clear status bits */
988 SMC_GET_PHY_INT_SRC(lp, phyaddr,status);
989 DBG(SMC_DEBUG_MISC, dev, "PHY interrupt status 0x%04x\n",
991 DBG(SMC_DEBUG_MISC, dev, "AFC_CFG 0x%08x\n",
992 SMC_GET_AFC_CFG(lp));
995 /*--- END PHY CONTROL AND CONFIGURATION-------------------------------------*/
998 * This is the main routine of the driver, to handle the device when
999 * it needs some attention.
1001 static irqreturn_t smc911x_interrupt(int irq, void *dev_id)
1003 struct net_device *dev = dev_id;
1004 struct smc911x_local *lp = netdev_priv(dev);
1005 unsigned int status, mask, timeout;
1006 unsigned int rx_overrun=0, cr, pkts;
1007 unsigned long flags;
1009 DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
1011 spin_lock_irqsave(&lp->lock, flags);
1013 /* Spurious interrupt check */
1014 if ((SMC_GET_IRQ_CFG(lp) & (INT_CFG_IRQ_INT_ | INT_CFG_IRQ_EN_)) !=
1015 (INT_CFG_IRQ_INT_ | INT_CFG_IRQ_EN_)) {
1016 spin_unlock_irqrestore(&lp->lock, flags);
1020 mask = SMC_GET_INT_EN(lp);
1021 SMC_SET_INT_EN(lp, 0);
1023 /* set a timeout value, so I don't stay here forever */
1028 status = SMC_GET_INT(lp);
1030 DBG(SMC_DEBUG_MISC, dev, "INT 0x%08x MASK 0x%08x OUTSIDE MASK 0x%08x\n",
1031 status, mask, status & ~mask);
1037 /* Handle SW interrupt condition */
1038 if (status & INT_STS_SW_INT_) {
1039 SMC_ACK_INT(lp, INT_STS_SW_INT_);
1040 mask &= ~INT_EN_SW_INT_EN_;
1042 /* Handle various error conditions */
1043 if (status & INT_STS_RXE_) {
1044 SMC_ACK_INT(lp, INT_STS_RXE_);
1045 dev->stats.rx_errors++;
1047 if (status & INT_STS_RXDFH_INT_) {
1048 SMC_ACK_INT(lp, INT_STS_RXDFH_INT_);
1049 dev->stats.rx_dropped+=SMC_GET_RX_DROP(lp);
1051 /* Undocumented interrupt-what is the right thing to do here? */
1052 if (status & INT_STS_RXDF_INT_) {
1053 SMC_ACK_INT(lp, INT_STS_RXDF_INT_);
1056 /* Rx Data FIFO exceeds set level */
1057 if (status & INT_STS_RDFL_) {
1058 if (IS_REV_A(lp->revision)) {
1060 SMC_GET_MAC_CR(lp, cr);
1061 cr &= ~MAC_CR_RXEN_;
1062 SMC_SET_MAC_CR(lp, cr);
1063 DBG(SMC_DEBUG_RX, dev, "RX overrun\n");
1064 dev->stats.rx_errors++;
1065 dev->stats.rx_fifo_errors++;
1067 SMC_ACK_INT(lp, INT_STS_RDFL_);
1069 if (status & INT_STS_RDFO_) {
1070 if (!IS_REV_A(lp->revision)) {
1071 SMC_GET_MAC_CR(lp, cr);
1072 cr &= ~MAC_CR_RXEN_;
1073 SMC_SET_MAC_CR(lp, cr);
1075 DBG(SMC_DEBUG_RX, dev, "RX overrun\n");
1076 dev->stats.rx_errors++;
1077 dev->stats.rx_fifo_errors++;
1079 SMC_ACK_INT(lp, INT_STS_RDFO_);
1081 /* Handle receive condition */
1082 if ((status & INT_STS_RSFL_) || rx_overrun) {
1084 DBG(SMC_DEBUG_RX, dev, "RX irq\n");
1085 fifo = SMC_GET_RX_FIFO_INF(lp);
1086 pkts = (fifo & RX_FIFO_INF_RXSUSED_) >> 16;
1087 DBG(SMC_DEBUG_RX, dev, "Rx FIFO pkts %d, bytes %d\n",
1088 pkts, fifo & 0xFFFF);
1092 if (lp->rxdma_active){
1093 DBG(SMC_DEBUG_RX | SMC_DEBUG_DMA, dev,
1095 /* The DMA is already running so up the IRQ threshold */
1096 fifo = SMC_GET_FIFO_INT(lp) & ~0xFF;
1097 fifo |= pkts & 0xFF;
1098 DBG(SMC_DEBUG_RX, dev,
1099 "Setting RX stat FIFO threshold to %d\n",
1101 SMC_SET_FIFO_INT(lp, fifo);
1106 SMC_ACK_INT(lp, INT_STS_RSFL_);
1108 /* Handle transmit FIFO available */
1109 if (status & INT_STS_TDFA_) {
1110 DBG(SMC_DEBUG_TX, dev, "TX data FIFO space available irq\n");
1111 SMC_SET_FIFO_TDA(lp, 0xFF);
1112 lp->tx_throttle = 0;
1114 if (!lp->txdma_active)
1116 netif_wake_queue(dev);
1117 SMC_ACK_INT(lp, INT_STS_TDFA_);
1119 /* Handle transmit done condition */
1121 if (status & (INT_STS_TSFL_ | INT_STS_GPT_INT_)) {
1122 DBG(SMC_DEBUG_TX | SMC_DEBUG_MISC, dev,
1123 "Tx stat FIFO limit (%d) /GPT irq\n",
1124 (SMC_GET_FIFO_INT(lp) & 0x00ff0000) >> 16);
1126 SMC_SET_GPT_CFG(lp, GPT_CFG_TIMER_EN_ | 10000);
1127 SMC_ACK_INT(lp, INT_STS_TSFL_);
1128 SMC_ACK_INT(lp, INT_STS_TSFL_ | INT_STS_GPT_INT_);
1131 if (status & INT_STS_TSFL_) {
1132 DBG(SMC_DEBUG_TX, dev, "TX status FIFO limit (%d) irq\n", ?);
1134 SMC_ACK_INT(lp, INT_STS_TSFL_);
1137 if (status & INT_STS_GPT_INT_) {
1138 DBG(SMC_DEBUG_RX, dev, "IRQ_CFG 0x%08x FIFO_INT 0x%08x RX_CFG 0x%08x\n",
1139 SMC_GET_IRQ_CFG(lp),
1140 SMC_GET_FIFO_INT(lp),
1141 SMC_GET_RX_CFG(lp));
1142 DBG(SMC_DEBUG_RX, dev, "Rx Stat FIFO Used 0x%02x Data FIFO Used 0x%04x Stat FIFO 0x%08x\n",
1143 (SMC_GET_RX_FIFO_INF(lp) & 0x00ff0000) >> 16,
1144 SMC_GET_RX_FIFO_INF(lp) & 0xffff,
1145 SMC_GET_RX_STS_FIFO_PEEK(lp));
1146 SMC_SET_GPT_CFG(lp, GPT_CFG_TIMER_EN_ | 10000);
1147 SMC_ACK_INT(lp, INT_STS_GPT_INT_);
1151 /* Handle PHY interrupt condition */
1152 if (status & INT_STS_PHY_INT_) {
1153 DBG(SMC_DEBUG_MISC, dev, "PHY irq\n");
1154 smc911x_phy_interrupt(dev);
1155 SMC_ACK_INT(lp, INT_STS_PHY_INT_);
1157 } while (--timeout);
1159 /* restore mask state */
1160 SMC_SET_INT_EN(lp, mask);
1162 DBG(SMC_DEBUG_MISC, dev, "Interrupt done (%d loops)\n",
1165 spin_unlock_irqrestore(&lp->lock, flags);
1172 smc911x_tx_dma_irq(void *data)
1174 struct smc911x_local *lp = data;
1175 struct net_device *dev = lp->netdev;
1176 struct sk_buff *skb = lp->current_tx_skb;
1177 unsigned long flags;
1179 DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
1181 DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, dev, "TX DMA irq handler\n");
1182 BUG_ON(skb == NULL);
1183 dma_unmap_single(lp->dev, tx_dmabuf, tx_dmalen, DMA_TO_DEVICE);
1184 netif_trans_update(dev);
1185 dev_kfree_skb_irq(skb);
1186 lp->current_tx_skb = NULL;
1187 if (lp->pending_tx_skb != NULL)
1188 smc911x_hardware_send_pkt(dev);
1190 DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, dev,
1191 "No pending Tx packets. DMA disabled\n");
1192 spin_lock_irqsave(&lp->lock, flags);
1193 lp->txdma_active = 0;
1194 if (!lp->tx_throttle) {
1195 netif_wake_queue(dev);
1197 spin_unlock_irqrestore(&lp->lock, flags);
1200 DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, dev,
1201 "TX DMA irq completed\n");
1204 smc911x_rx_dma_irq(void *data)
1206 struct smc911x_local *lp = data;
1207 struct net_device *dev = lp->netdev;
1208 struct sk_buff *skb = lp->current_rx_skb;
1209 unsigned long flags;
1212 DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
1213 DBG(SMC_DEBUG_RX | SMC_DEBUG_DMA, dev, "RX DMA irq handler\n");
1214 dma_unmap_single(lp->dev, rx_dmabuf, rx_dmalen, DMA_FROM_DEVICE);
1215 BUG_ON(skb == NULL);
1216 lp->current_rx_skb = NULL;
1217 PRINT_PKT(skb->data, skb->len);
1218 skb->protocol = eth_type_trans(skb, dev);
1219 dev->stats.rx_packets++;
1220 dev->stats.rx_bytes += skb->len;
1223 spin_lock_irqsave(&lp->lock, flags);
1224 pkts = (SMC_GET_RX_FIFO_INF(lp) & RX_FIFO_INF_RXSUSED_) >> 16;
1228 lp->rxdma_active = 0;
1230 spin_unlock_irqrestore(&lp->lock, flags);
1231 DBG(SMC_DEBUG_RX | SMC_DEBUG_DMA, dev,
1232 "RX DMA irq completed. DMA RX FIFO PKTS %d\n",
1235 #endif /* SMC_USE_DMA */
1237 #ifdef CONFIG_NET_POLL_CONTROLLER
1239 * Polling receive - used by netconsole and other diagnostic tools
1240 * to allow network i/o with interrupts disabled.
1242 static void smc911x_poll_controller(struct net_device *dev)
1244 disable_irq(dev->irq);
1245 smc911x_interrupt(dev->irq, dev);
1246 enable_irq(dev->irq);
1250 /* Our watchdog timed out. Called by the networking layer */
1251 static void smc911x_timeout(struct net_device *dev, unsigned int txqueue)
1253 struct smc911x_local *lp = netdev_priv(dev);
1255 unsigned long flags;
1257 DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
1259 spin_lock_irqsave(&lp->lock, flags);
1260 status = SMC_GET_INT(lp);
1261 mask = SMC_GET_INT_EN(lp);
1262 spin_unlock_irqrestore(&lp->lock, flags);
1263 DBG(SMC_DEBUG_MISC, dev, "INT 0x%02x MASK 0x%02x\n",
1266 /* Dump the current TX FIFO contents and restart */
1267 mask = SMC_GET_TX_CFG(lp);
1268 SMC_SET_TX_CFG(lp, mask | TX_CFG_TXS_DUMP_ | TX_CFG_TXD_DUMP_);
1270 * Reconfiguring the PHY doesn't seem like a bad idea here, but
1271 * smc911x_phy_configure() calls msleep() which calls schedule_timeout()
1272 * which calls schedule(). Hence we use a work queue.
1274 if (lp->phy_type != 0)
1275 schedule_work(&lp->phy_configure);
1277 /* We can accept TX packets again */
1278 netif_trans_update(dev); /* prevent tx timeout */
1279 netif_wake_queue(dev);
1283 * This routine will, depending on the values passed to it,
1284 * either make it accept multicast packets, go into
1285 * promiscuous mode (for TCPDUMP and cousins) or accept
1286 * a select set of multicast packets
1288 static void smc911x_set_multicast_list(struct net_device *dev)
1290 struct smc911x_local *lp = netdev_priv(dev);
1291 unsigned int multicast_table[2];
1292 unsigned int mcr, update_multicast = 0;
1293 unsigned long flags;
1295 DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
1297 spin_lock_irqsave(&lp->lock, flags);
1298 SMC_GET_MAC_CR(lp, mcr);
1299 spin_unlock_irqrestore(&lp->lock, flags);
1301 if (dev->flags & IFF_PROMISC) {
1303 DBG(SMC_DEBUG_MISC, dev, "RCR_PRMS\n");
1304 mcr |= MAC_CR_PRMS_;
1307 * Here, I am setting this to accept all multicast packets.
1308 * I don't need to zero the multicast table, because the flag is
1309 * checked before the table is
1311 else if (dev->flags & IFF_ALLMULTI || netdev_mc_count(dev) > 16) {
1312 DBG(SMC_DEBUG_MISC, dev, "RCR_ALMUL\n");
1313 mcr |= MAC_CR_MCPAS_;
1317 * This sets the internal hardware table to filter out unwanted
1318 * multicast packets before they take up memory.
1320 * The SMC chip uses a hash table where the high 6 bits of the CRC of
1321 * address are the offset into the table. If that bit is 1, then the
1322 * multicast packet is accepted. Otherwise, it's dropped silently.
1324 * To use the 6 bits as an offset into the table, the high 1 bit is
1325 * the number of the 32 bit register, while the low 5 bits are the bit
1326 * within that register.
1328 else if (!netdev_mc_empty(dev)) {
1329 struct netdev_hw_addr *ha;
1331 /* Set the Hash perfec mode */
1332 mcr |= MAC_CR_HPFILT_;
1334 /* start with a table of all zeros: reject all */
1335 memset(multicast_table, 0, sizeof(multicast_table));
1337 netdev_for_each_mc_addr(ha, dev) {
1340 /* upper 6 bits are used as hash index */
1341 position = ether_crc(ETH_ALEN, ha->addr)>>26;
1343 multicast_table[position>>5] |= 1 << (position&0x1f);
1346 /* be sure I get rid of flags I might have set */
1347 mcr &= ~(MAC_CR_PRMS_ | MAC_CR_MCPAS_);
1349 /* now, the table can be loaded into the chipset */
1350 update_multicast = 1;
1352 DBG(SMC_DEBUG_MISC, dev, "~(MAC_CR_PRMS_|MAC_CR_MCPAS_)\n");
1353 mcr &= ~(MAC_CR_PRMS_ | MAC_CR_MCPAS_);
1356 * since I'm disabling all multicast entirely, I need to
1357 * clear the multicast list
1359 memset(multicast_table, 0, sizeof(multicast_table));
1360 update_multicast = 1;
1363 spin_lock_irqsave(&lp->lock, flags);
1364 SMC_SET_MAC_CR(lp, mcr);
1365 if (update_multicast) {
1366 DBG(SMC_DEBUG_MISC, dev,
1367 "update mcast hash table 0x%08x 0x%08x\n",
1368 multicast_table[0], multicast_table[1]);
1369 SMC_SET_HASHL(lp, multicast_table[0]);
1370 SMC_SET_HASHH(lp, multicast_table[1]);
1372 spin_unlock_irqrestore(&lp->lock, flags);
1377 * Open and Initialize the board
1379 * Set up everything, reset the card, etc..
1382 smc911x_open(struct net_device *dev)
1384 struct smc911x_local *lp = netdev_priv(dev);
1386 DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
1388 /* reset the hardware */
1391 /* Configure the PHY, initialize the link state */
1392 smc911x_phy_configure(&lp->phy_configure);
1394 /* Turn on Tx + Rx */
1395 smc911x_enable(dev);
1397 netif_start_queue(dev);
1405 * this makes the board clean up everything that it can
1406 * and not talk to the outside world. Caused by
1407 * an 'ifconfig ethX down'
1409 static int smc911x_close(struct net_device *dev)
1411 struct smc911x_local *lp = netdev_priv(dev);
1413 DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
1415 netif_stop_queue(dev);
1416 netif_carrier_off(dev);
1418 /* clear everything */
1419 smc911x_shutdown(dev);
1421 if (lp->phy_type != 0) {
1422 /* We need to ensure that no calls to
1423 * smc911x_phy_configure are pending.
1425 cancel_work_sync(&lp->phy_configure);
1426 smc911x_phy_powerdown(dev, lp->mii.phy_id);
1429 if (lp->pending_tx_skb) {
1430 dev_kfree_skb(lp->pending_tx_skb);
1431 lp->pending_tx_skb = NULL;
1441 smc911x_ethtool_get_link_ksettings(struct net_device *dev,
1442 struct ethtool_link_ksettings *cmd)
1444 struct smc911x_local *lp = netdev_priv(dev);
1446 unsigned long flags;
1449 DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
1451 if (lp->phy_type != 0) {
1452 spin_lock_irqsave(&lp->lock, flags);
1453 mii_ethtool_get_link_ksettings(&lp->mii, cmd);
1454 spin_unlock_irqrestore(&lp->lock, flags);
1456 supported = SUPPORTED_10baseT_Half |
1457 SUPPORTED_10baseT_Full |
1458 SUPPORTED_TP | SUPPORTED_AUI;
1460 if (lp->ctl_rspeed == 10)
1461 cmd->base.speed = SPEED_10;
1462 else if (lp->ctl_rspeed == 100)
1463 cmd->base.speed = SPEED_100;
1465 cmd->base.autoneg = AUTONEG_DISABLE;
1467 SMC_GET_PHY_SPECIAL(lp, lp->mii.phy_id, status);
1469 (status & (PHY_SPECIAL_SPD_10FULL_ | PHY_SPECIAL_SPD_100FULL_)) ?
1470 DUPLEX_FULL : DUPLEX_HALF;
1472 ethtool_convert_legacy_u32_to_link_mode(
1473 cmd->link_modes.supported, supported);
1481 smc911x_ethtool_set_link_ksettings(struct net_device *dev,
1482 const struct ethtool_link_ksettings *cmd)
1484 struct smc911x_local *lp = netdev_priv(dev);
1486 unsigned long flags;
1488 if (lp->phy_type != 0) {
1489 spin_lock_irqsave(&lp->lock, flags);
1490 ret = mii_ethtool_set_link_ksettings(&lp->mii, cmd);
1491 spin_unlock_irqrestore(&lp->lock, flags);
1493 if (cmd->base.autoneg != AUTONEG_DISABLE ||
1494 cmd->base.speed != SPEED_10 ||
1495 (cmd->base.duplex != DUPLEX_HALF &&
1496 cmd->base.duplex != DUPLEX_FULL) ||
1497 (cmd->base.port != PORT_TP &&
1498 cmd->base.port != PORT_AUI))
1501 lp->ctl_rfduplx = cmd->base.duplex == DUPLEX_FULL;
1510 smc911x_ethtool_getdrvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1512 strlcpy(info->driver, CARDNAME, sizeof(info->driver));
1513 strlcpy(info->version, version, sizeof(info->version));
1514 strlcpy(info->bus_info, dev_name(dev->dev.parent),
1515 sizeof(info->bus_info));
1518 static int smc911x_ethtool_nwayreset(struct net_device *dev)
1520 struct smc911x_local *lp = netdev_priv(dev);
1522 unsigned long flags;
1524 if (lp->phy_type != 0) {
1525 spin_lock_irqsave(&lp->lock, flags);
1526 ret = mii_nway_restart(&lp->mii);
1527 spin_unlock_irqrestore(&lp->lock, flags);
1533 static u32 smc911x_ethtool_getmsglevel(struct net_device *dev)
1535 struct smc911x_local *lp = netdev_priv(dev);
1536 return lp->msg_enable;
1539 static void smc911x_ethtool_setmsglevel(struct net_device *dev, u32 level)
1541 struct smc911x_local *lp = netdev_priv(dev);
1542 lp->msg_enable = level;
1545 static int smc911x_ethtool_getregslen(struct net_device *dev)
1547 /* System regs + MAC regs + PHY regs */
1548 return (((E2P_CMD - ID_REV)/4 + 1) +
1549 (WUCSR - MAC_CR)+1 + 32) * sizeof(u32);
1552 static void smc911x_ethtool_getregs(struct net_device *dev,
1553 struct ethtool_regs *regs, void *buf)
1555 struct smc911x_local *lp = netdev_priv(dev);
1556 unsigned long flags;
1558 u32 *data = (u32*)buf;
1560 regs->version = lp->version;
1561 for(i=ID_REV;i<=E2P_CMD;i+=4) {
1562 data[j++] = SMC_inl(lp, i);
1564 for(i=MAC_CR;i<=WUCSR;i++) {
1565 spin_lock_irqsave(&lp->lock, flags);
1566 SMC_GET_MAC_CSR(lp, i, reg);
1567 spin_unlock_irqrestore(&lp->lock, flags);
1570 for(i=0;i<=31;i++) {
1571 spin_lock_irqsave(&lp->lock, flags);
1572 SMC_GET_MII(lp, i, lp->mii.phy_id, reg);
1573 spin_unlock_irqrestore(&lp->lock, flags);
1574 data[j++] = reg & 0xFFFF;
1578 static int smc911x_ethtool_wait_eeprom_ready(struct net_device *dev)
1580 struct smc911x_local *lp = netdev_priv(dev);
1581 unsigned int timeout;
1584 e2p_cmd = SMC_GET_E2P_CMD(lp);
1585 for(timeout=10;(e2p_cmd & E2P_CMD_EPC_BUSY_) && timeout; timeout--) {
1586 if (e2p_cmd & E2P_CMD_EPC_TIMEOUT_) {
1587 PRINTK(dev, "%s timeout waiting for EEPROM to respond\n",
1592 e2p_cmd = SMC_GET_E2P_CMD(lp);
1595 PRINTK(dev, "%s timeout waiting for EEPROM CMD not busy\n",
1602 static inline int smc911x_ethtool_write_eeprom_cmd(struct net_device *dev,
1605 struct smc911x_local *lp = netdev_priv(dev);
1608 if ((ret = smc911x_ethtool_wait_eeprom_ready(dev))!=0)
1610 SMC_SET_E2P_CMD(lp, E2P_CMD_EPC_BUSY_ |
1611 ((cmd) & (0x7<<28)) |
1616 static inline int smc911x_ethtool_read_eeprom_byte(struct net_device *dev,
1619 struct smc911x_local *lp = netdev_priv(dev);
1622 if ((ret = smc911x_ethtool_wait_eeprom_ready(dev))!=0)
1624 *data = SMC_GET_E2P_DATA(lp);
1628 static inline int smc911x_ethtool_write_eeprom_byte(struct net_device *dev,
1631 struct smc911x_local *lp = netdev_priv(dev);
1634 if ((ret = smc911x_ethtool_wait_eeprom_ready(dev))!=0)
1636 SMC_SET_E2P_DATA(lp, data);
1640 static int smc911x_ethtool_geteeprom(struct net_device *dev,
1641 struct ethtool_eeprom *eeprom, u8 *data)
1643 u8 eebuf[SMC911X_EEPROM_LEN];
1646 for(i=0;i<SMC911X_EEPROM_LEN;i++) {
1647 if ((ret=smc911x_ethtool_write_eeprom_cmd(dev, E2P_CMD_EPC_CMD_READ_, i ))!=0)
1649 if ((ret=smc911x_ethtool_read_eeprom_byte(dev, &eebuf[i]))!=0)
1652 memcpy(data, eebuf+eeprom->offset, eeprom->len);
1656 static int smc911x_ethtool_seteeprom(struct net_device *dev,
1657 struct ethtool_eeprom *eeprom, u8 *data)
1662 if ((ret=smc911x_ethtool_write_eeprom_cmd(dev, E2P_CMD_EPC_CMD_EWEN_, 0 ))!=0)
1664 for(i=eeprom->offset;i<(eeprom->offset+eeprom->len);i++) {
1666 if ((ret=smc911x_ethtool_write_eeprom_cmd(dev, E2P_CMD_EPC_CMD_ERASE_, i ))!=0)
1669 if ((ret=smc911x_ethtool_write_eeprom_byte(dev, *data))!=0)
1671 if ((ret=smc911x_ethtool_write_eeprom_cmd(dev, E2P_CMD_EPC_CMD_WRITE_, i ))!=0)
1677 static int smc911x_ethtool_geteeprom_len(struct net_device *dev)
1679 return SMC911X_EEPROM_LEN;
1682 static const struct ethtool_ops smc911x_ethtool_ops = {
1683 .get_drvinfo = smc911x_ethtool_getdrvinfo,
1684 .get_msglevel = smc911x_ethtool_getmsglevel,
1685 .set_msglevel = smc911x_ethtool_setmsglevel,
1686 .nway_reset = smc911x_ethtool_nwayreset,
1687 .get_link = ethtool_op_get_link,
1688 .get_regs_len = smc911x_ethtool_getregslen,
1689 .get_regs = smc911x_ethtool_getregs,
1690 .get_eeprom_len = smc911x_ethtool_geteeprom_len,
1691 .get_eeprom = smc911x_ethtool_geteeprom,
1692 .set_eeprom = smc911x_ethtool_seteeprom,
1693 .get_link_ksettings = smc911x_ethtool_get_link_ksettings,
1694 .set_link_ksettings = smc911x_ethtool_set_link_ksettings,
1700 * This routine has a simple purpose -- make the SMC chip generate an
1701 * interrupt, so an auto-detect routine can detect it, and find the IRQ,
1703 static int smc911x_findirq(struct net_device *dev)
1705 struct smc911x_local *lp = netdev_priv(dev);
1707 unsigned long cookie;
1709 DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
1711 cookie = probe_irq_on();
1714 * Force a SW interrupt
1717 SMC_SET_INT_EN(lp, INT_EN_SW_INT_EN_);
1720 * Wait until positive that the interrupt has been generated
1725 int_status = SMC_GET_INT_EN(lp);
1726 if (int_status & INT_EN_SW_INT_EN_)
1727 break; /* got the interrupt */
1728 } while (--timeout);
1731 * there is really nothing that I can do here if timeout fails,
1732 * as autoirq_report will return a 0 anyway, which is what I
1733 * want in this case. Plus, the clean up is needed in both
1737 /* and disable all interrupts again */
1738 SMC_SET_INT_EN(lp, 0);
1740 /* and return what I found */
1741 return probe_irq_off(cookie);
1744 static const struct net_device_ops smc911x_netdev_ops = {
1745 .ndo_open = smc911x_open,
1746 .ndo_stop = smc911x_close,
1747 .ndo_start_xmit = smc911x_hard_start_xmit,
1748 .ndo_tx_timeout = smc911x_timeout,
1749 .ndo_set_rx_mode = smc911x_set_multicast_list,
1750 .ndo_validate_addr = eth_validate_addr,
1751 .ndo_set_mac_address = eth_mac_addr,
1752 #ifdef CONFIG_NET_POLL_CONTROLLER
1753 .ndo_poll_controller = smc911x_poll_controller,
1758 * Function: smc911x_probe(unsigned long ioaddr)
1761 * Tests to see if a given ioaddr points to an SMC911x chip.
1762 * Returns a 0 on success
1765 * (1) see if the endian word is OK
1766 * (1) see if I recognize the chip ID in the appropriate register
1768 * Here I do typical initialization tasks.
1770 * o Initialize the structure if needed
1771 * o print out my vanity message if not done so already
1772 * o print out what type of hardware is detected
1773 * o print out the ethernet address
1775 * o set up my private data
1776 * o configure the dev structure with my subroutines
1777 * o actually GRAB the irq.
1780 static int smc911x_probe(struct net_device *dev)
1782 struct smc911x_local *lp = netdev_priv(dev);
1784 unsigned int val, chip_id, revision;
1785 const char *version_string;
1786 unsigned long irq_flags;
1788 struct dma_slave_config config;
1789 dma_cap_mask_t mask;
1793 DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
1795 /* First, see if the endian word is recognized */
1796 val = SMC_GET_BYTE_TEST(lp);
1797 DBG(SMC_DEBUG_MISC, dev, "%s: endian probe returned 0x%04x\n",
1799 if (val != 0x87654321) {
1800 netdev_err(dev, "Invalid chip endian 0x%08x\n", val);
1806 * check if the revision register is something that I
1807 * recognize. These might need to be added to later,
1808 * as future revisions could be added.
1810 chip_id = SMC_GET_PN(lp);
1811 DBG(SMC_DEBUG_MISC, dev, "%s: id probe returned 0x%04x\n",
1813 for(i=0;chip_ids[i].id != 0; i++) {
1814 if (chip_ids[i].id == chip_id) break;
1816 if (!chip_ids[i].id) {
1817 netdev_err(dev, "Unknown chip ID %04x\n", chip_id);
1821 version_string = chip_ids[i].name;
1823 revision = SMC_GET_REV(lp);
1824 DBG(SMC_DEBUG_MISC, dev, "%s: revision = 0x%04x\n", CARDNAME, revision);
1826 /* At this point I'll assume that the chip is an SMC911x. */
1827 DBG(SMC_DEBUG_MISC, dev, "%s: Found a %s\n",
1828 CARDNAME, chip_ids[i].name);
1830 /* Validate the TX FIFO size requested */
1831 if ((tx_fifo_kb < 2) || (tx_fifo_kb > 14)) {
1832 netdev_err(dev, "Invalid TX FIFO size requested %d\n",
1838 /* fill in some of the fields */
1839 lp->version = chip_ids[i].id;
1840 lp->revision = revision;
1841 lp->tx_fifo_kb = tx_fifo_kb;
1842 /* Reverse calculate the RX FIFO size from the TX */
1843 lp->tx_fifo_size=(lp->tx_fifo_kb<<10) - 512;
1844 lp->rx_fifo_size= ((0x4000 - 512 - lp->tx_fifo_size) / 16) * 15;
1846 /* Set the automatic flow control values */
1847 switch(lp->tx_fifo_kb) {
1849 * AFC_HI is about ((Rx Data Fifo Size)*2/3)/64
1850 * AFC_LO is AFC_HI/2
1851 * BACK_DUR is about 5uS*(AFC_LO) rounded down
1853 case 2:/* 13440 Rx Data Fifo Size */
1854 lp->afc_cfg=0x008C46AF;break;
1855 case 3:/* 12480 Rx Data Fifo Size */
1856 lp->afc_cfg=0x0082419F;break;
1857 case 4:/* 11520 Rx Data Fifo Size */
1858 lp->afc_cfg=0x00783C9F;break;
1859 case 5:/* 10560 Rx Data Fifo Size */
1860 lp->afc_cfg=0x006E374F;break;
1861 case 6:/* 9600 Rx Data Fifo Size */
1862 lp->afc_cfg=0x0064328F;break;
1863 case 7:/* 8640 Rx Data Fifo Size */
1864 lp->afc_cfg=0x005A2D7F;break;
1865 case 8:/* 7680 Rx Data Fifo Size */
1866 lp->afc_cfg=0x0050287F;break;
1867 case 9:/* 6720 Rx Data Fifo Size */
1868 lp->afc_cfg=0x0046236F;break;
1869 case 10:/* 5760 Rx Data Fifo Size */
1870 lp->afc_cfg=0x003C1E6F;break;
1871 case 11:/* 4800 Rx Data Fifo Size */
1872 lp->afc_cfg=0x0032195F;break;
1874 * AFC_HI is ~1520 bytes less than RX Data Fifo Size
1875 * AFC_LO is AFC_HI/2
1876 * BACK_DUR is about 5uS*(AFC_LO) rounded down
1878 case 12:/* 3840 Rx Data Fifo Size */
1879 lp->afc_cfg=0x0024124F;break;
1880 case 13:/* 2880 Rx Data Fifo Size */
1881 lp->afc_cfg=0x0015073F;break;
1882 case 14:/* 1920 Rx Data Fifo Size */
1883 lp->afc_cfg=0x0006032F;break;
1885 PRINTK(dev, "ERROR -- no AFC_CFG setting found");
1889 DBG(SMC_DEBUG_MISC | SMC_DEBUG_TX | SMC_DEBUG_RX, dev,
1890 "%s: tx_fifo %d rx_fifo %d afc_cfg 0x%08x\n", CARDNAME,
1891 lp->tx_fifo_size, lp->rx_fifo_size, lp->afc_cfg);
1893 spin_lock_init(&lp->lock);
1895 /* Get the MAC address */
1896 SMC_GET_MAC_ADDR(lp, addr);
1897 eth_hw_addr_set(dev, addr);
1899 /* now, reset the chip, and put it into a known state */
1903 * If dev->irq is 0, then the device has to be banged on to see
1906 * Specifying an IRQ is done with the assumption that the user knows
1907 * what (s)he is doing. No checking is done!!!!
1914 dev->irq = smc911x_findirq(dev);
1917 /* kick the card and try again */
1921 if (dev->irq == 0) {
1922 netdev_warn(dev, "Couldn't autodetect your IRQ. Use irq=xx.\n");
1926 dev->irq = irq_canonicalize(dev->irq);
1928 dev->netdev_ops = &smc911x_netdev_ops;
1929 dev->watchdog_timeo = msecs_to_jiffies(watchdog);
1930 dev->ethtool_ops = &smc911x_ethtool_ops;
1932 INIT_WORK(&lp->phy_configure, smc911x_phy_configure);
1933 lp->mii.phy_id_mask = 0x1f;
1934 lp->mii.reg_num_mask = 0x1f;
1935 lp->mii.force_media = 0;
1936 lp->mii.full_duplex = 0;
1938 lp->mii.mdio_read = smc911x_phy_read;
1939 lp->mii.mdio_write = smc911x_phy_write;
1942 * Locate the phy, if any.
1944 smc911x_phy_detect(dev);
1946 /* Set default parameters */
1947 lp->msg_enable = NETIF_MSG_LINK;
1948 lp->ctl_rfduplx = 1;
1949 lp->ctl_rspeed = 100;
1951 #ifdef SMC_DYNAMIC_BUS_CONFIG
1952 irq_flags = lp->cfg.irq_flags;
1954 irq_flags = IRQF_SHARED | SMC_IRQ_SENSE;
1958 retval = request_irq(dev->irq, smc911x_interrupt,
1959 irq_flags, dev->name, dev);
1966 dma_cap_set(DMA_SLAVE, mask);
1967 lp->rxdma = dma_request_channel(mask, NULL, NULL);
1968 lp->txdma = dma_request_channel(mask, NULL, NULL);
1969 lp->rxdma_active = 0;
1970 lp->txdma_active = 0;
1972 memset(&config, 0, sizeof(config));
1973 config.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
1974 config.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
1975 config.src_addr = lp->physaddr + RX_DATA_FIFO;
1976 config.dst_addr = lp->physaddr + TX_DATA_FIFO;
1977 config.src_maxburst = 32;
1978 config.dst_maxburst = 32;
1979 retval = dmaengine_slave_config(lp->rxdma, &config);
1981 dev_err(lp->dev, "dma rx channel configuration failed: %d\n",
1985 retval = dmaengine_slave_config(lp->txdma, &config);
1987 dev_err(lp->dev, "dma tx channel configuration failed: %d\n",
1993 retval = register_netdev(dev);
1995 /* now, print out the card info, in a short format.. */
1996 netdev_info(dev, "%s (rev %d) at %#lx IRQ %d",
1997 version_string, lp->revision,
1998 dev->base_addr, dev->irq);
2002 pr_cont(" RXDMA %p", lp->rxdma);
2005 pr_cont(" TXDMA %p", lp->txdma);
2008 if (!is_valid_ether_addr(dev->dev_addr)) {
2009 netdev_warn(dev, "Invalid ethernet MAC address. Please set using ifconfig\n");
2011 /* Print the Ethernet address */
2012 netdev_info(dev, "Ethernet addr: %pM\n",
2016 if (lp->phy_type == 0) {
2017 PRINTK(dev, "No PHY found\n");
2018 } else if ((lp->phy_type & ~0xff) == LAN911X_INTERNAL_PHY_ID) {
2019 PRINTK(dev, "LAN911x Internal PHY\n");
2021 PRINTK(dev, "External PHY 0x%08x\n", lp->phy_type);
2029 dma_release_channel(lp->rxdma);
2031 dma_release_channel(lp->txdma);
2038 * smc911x_drv_probe(void)
2041 * 0 --> there is a device
2042 * anything else, error
2044 static int smc911x_drv_probe(struct platform_device *pdev)
2046 struct net_device *ndev;
2047 struct resource *res;
2048 struct smc911x_local *lp;
2052 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2059 * Request the regions.
2061 if (!request_mem_region(res->start, SMC911X_IO_EXTENT, CARDNAME)) {
2066 ndev = alloc_etherdev(sizeof(struct smc911x_local));
2071 SET_NETDEV_DEV(ndev, &pdev->dev);
2073 ndev->dma = (unsigned char)-1;
2074 ndev->irq = platform_get_irq(pdev, 0);
2075 if (ndev->irq < 0) {
2080 lp = netdev_priv(ndev);
2082 #ifdef SMC_DYNAMIC_BUS_CONFIG
2084 struct smc911x_platdata *pd = dev_get_platdata(&pdev->dev);
2089 memcpy(&lp->cfg, pd, sizeof(lp->cfg));
2093 addr = ioremap(res->start, SMC911X_IO_EXTENT);
2099 platform_set_drvdata(pdev, ndev);
2101 ndev->base_addr = res->start;
2102 ret = smc911x_probe(ndev);
2108 release_mem_region(res->start, SMC911X_IO_EXTENT);
2110 pr_info("%s: not found (%d).\n", CARDNAME, ret);
2114 lp->physaddr = res->start;
2115 lp->dev = &pdev->dev;
2122 static int smc911x_drv_remove(struct platform_device *pdev)
2124 struct net_device *ndev = platform_get_drvdata(pdev);
2125 struct smc911x_local *lp = netdev_priv(ndev);
2126 struct resource *res;
2128 DBG(SMC_DEBUG_FUNC, ndev, "--> %s\n", __func__);
2130 unregister_netdev(ndev);
2132 free_irq(ndev->irq, ndev);
2137 dma_release_channel(lp->rxdma);
2139 dma_release_channel(lp->txdma);
2143 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2144 release_mem_region(res->start, SMC911X_IO_EXTENT);
2150 static int smc911x_drv_suspend(struct platform_device *dev, pm_message_t state)
2152 struct net_device *ndev = platform_get_drvdata(dev);
2153 struct smc911x_local *lp = netdev_priv(ndev);
2155 DBG(SMC_DEBUG_FUNC, ndev, "--> %s\n", __func__);
2157 if (netif_running(ndev)) {
2158 netif_device_detach(ndev);
2159 smc911x_shutdown(ndev);
2161 /* Set D2 - Energy detect only setting */
2162 SMC_SET_PMT_CTRL(lp, 2<<12);
2169 static int smc911x_drv_resume(struct platform_device *dev)
2171 struct net_device *ndev = platform_get_drvdata(dev);
2173 DBG(SMC_DEBUG_FUNC, ndev, "--> %s\n", __func__);
2175 struct smc911x_local *lp = netdev_priv(ndev);
2177 if (netif_running(ndev)) {
2178 smc911x_reset(ndev);
2179 if (lp->phy_type != 0)
2180 smc911x_phy_configure(&lp->phy_configure);
2181 smc911x_enable(ndev);
2182 netif_device_attach(ndev);
2188 static struct platform_driver smc911x_driver = {
2189 .probe = smc911x_drv_probe,
2190 .remove = smc911x_drv_remove,
2191 .suspend = smc911x_drv_suspend,
2192 .resume = smc911x_drv_resume,
2198 module_platform_driver(smc911x_driver);