3 * This is a driver for SMSC's LAN911{5,6,7,8} single-chip Ethernet devices.
5 * Copyright (C) 2005 Sensoria Corp
6 * Derived from the unified SMC91x driver by Nicolas Pitre
7 * and the smsc911x.c reference driver by SMSC
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 * watchdog = TX watchdog timeout
25 * tx_fifo_kb = Size of TX FIFO in KB
28 * 04/16/05 Dustin McIntire Initial version
30 static const char version[] =
31 "smc911x.c: v1.0 04-16-2005 by Dustin McIntire <dustin@sensoria.com>\n";
33 /* Debugging options */
34 #define ENABLE_SMC_DEBUG_RX 0
35 #define ENABLE_SMC_DEBUG_TX 0
36 #define ENABLE_SMC_DEBUG_DMA 0
37 #define ENABLE_SMC_DEBUG_PKTS 0
38 #define ENABLE_SMC_DEBUG_MISC 0
39 #define ENABLE_SMC_DEBUG_FUNC 0
41 #define SMC_DEBUG_RX ((ENABLE_SMC_DEBUG_RX ? 1 : 0) << 0)
42 #define SMC_DEBUG_TX ((ENABLE_SMC_DEBUG_TX ? 1 : 0) << 1)
43 #define SMC_DEBUG_DMA ((ENABLE_SMC_DEBUG_DMA ? 1 : 0) << 2)
44 #define SMC_DEBUG_PKTS ((ENABLE_SMC_DEBUG_PKTS ? 1 : 0) << 3)
45 #define SMC_DEBUG_MISC ((ENABLE_SMC_DEBUG_MISC ? 1 : 0) << 4)
46 #define SMC_DEBUG_FUNC ((ENABLE_SMC_DEBUG_FUNC ? 1 : 0) << 5)
49 #define SMC_DEBUG ( SMC_DEBUG_RX | \
58 #include <linux/init.h>
59 #include <linux/module.h>
60 #include <linux/kernel.h>
61 #include <linux/sched.h>
62 #include <linux/delay.h>
63 #include <linux/interrupt.h>
64 #include <linux/errno.h>
65 #include <linux/ioport.h>
66 #include <linux/crc32.h>
67 #include <linux/device.h>
68 #include <linux/platform_device.h>
69 #include <linux/spinlock.h>
70 #include <linux/ethtool.h>
71 #include <linux/mii.h>
72 #include <linux/workqueue.h>
74 #include <linux/netdevice.h>
75 #include <linux/etherdevice.h>
76 #include <linux/skbuff.h>
83 * Transmit timeout, default 5 seconds.
85 static int watchdog = 5000;
86 module_param(watchdog, int, 0400);
87 MODULE_PARM_DESC(watchdog, "transmit timeout in milliseconds");
89 static int tx_fifo_kb=8;
90 module_param(tx_fifo_kb, int, 0400);
91 MODULE_PARM_DESC(tx_fifo_kb,"transmit FIFO size in KB (1<x<15)(default=8)");
93 MODULE_LICENSE("GPL");
94 MODULE_ALIAS("platform:smc911x");
97 * The internal workings of the driver. If you are changing anything
98 * here with the SMC stuff, you should have the datasheet and know
101 #define CARDNAME "smc911x"
104 * Use power-down feature of the chip
109 #define DBG(n, args...) \
111 if (SMC_DEBUG & (n)) \
115 #define PRINTK(args...) printk(args)
117 #define DBG(n, args...) do { } while (0)
118 #define PRINTK(args...) printk(KERN_DEBUG args)
121 #if SMC_DEBUG_PKTS > 0
122 static void PRINT_PKT(u_char *buf, int length)
129 remainder = length % 16;
131 for (i = 0; i < lines ; i ++) {
133 for (cur = 0; cur < 8; cur++) {
137 printk("%02x%02x ", a, b);
141 for (i = 0; i < remainder/2 ; i++) {
145 printk("%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, "%s: --> %s\n", dev->name, __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("%s: smc911x_reset timeout waiting for PM restore\n", dev->name);
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("%s: chip reset timeout, retrying...\n", dev->name);
213 } while (--timeout && (reg & HW_CFG_SRST_));
216 PRINTK("%s: smc911x_reset timeout waiting for reset\n", dev->name);
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("%s: smc911x_reset timeout waiting for EEPROM busy\n", dev->name);
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 #if defined(CONFIG_ARCH_S5PV310)
249 irq_cfg = (1 << 24) | INT_CFG_IRQ_EN_ | INT_CFG_IRQ_TYPE_|INT_CFG_IRQ_POL_;
251 irq_cfg = (1 << 24) | INT_CFG_IRQ_EN_ | INT_CFG_IRQ_TYPE_;
254 #ifdef SMC_DYNAMIC_BUS_CONFIG
255 if (lp->cfg.irq_polarity)
256 irq_cfg |= INT_CFG_IRQ_POL_;
258 SMC_SET_IRQ_CFG(lp, irq_cfg);
260 /* clear anything saved */
261 if (lp->pending_tx_skb != NULL) {
262 dev_kfree_skb (lp->pending_tx_skb);
263 lp->pending_tx_skb = NULL;
264 dev->stats.tx_errors++;
265 dev->stats.tx_aborted_errors++;
270 * Enable Interrupts, Receive, and Transmit
272 static void smc911x_enable(struct net_device *dev)
274 struct smc911x_local *lp = netdev_priv(dev);
275 unsigned mask, cfg, cr;
278 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
280 spin_lock_irqsave(&lp->lock, flags);
282 SMC_SET_MAC_ADDR(lp, dev->dev_addr);
285 cfg = SMC_GET_HW_CFG(lp);
286 cfg &= HW_CFG_TX_FIF_SZ_ | 0xFFF;
288 SMC_SET_HW_CFG(lp, cfg);
289 SMC_SET_FIFO_TDA(lp, 0xFF);
290 /* Update TX stats on every 64 packets received or every 1 sec */
291 SMC_SET_FIFO_TSL(lp, 64);
292 SMC_SET_GPT_CFG(lp, GPT_CFG_TIMER_EN_ | 10000);
294 SMC_GET_MAC_CR(lp, cr);
295 cr |= MAC_CR_TXEN_ | MAC_CR_HBDIS_;
296 SMC_SET_MAC_CR(lp, cr);
297 SMC_SET_TX_CFG(lp, TX_CFG_TX_ON_);
299 /* Add 2 byte padding to start of packets */
300 SMC_SET_RX_CFG(lp, (2<<8) & RX_CFG_RXDOFF_);
302 /* Turn on receiver and enable RX */
303 if (cr & MAC_CR_RXEN_)
304 DBG(SMC_DEBUG_RX, "%s: Receiver already enabled\n", dev->name);
306 SMC_SET_MAC_CR(lp, cr | MAC_CR_RXEN_);
308 /* Interrupt on every received packet */
309 SMC_SET_FIFO_RSA(lp, 0x01);
310 SMC_SET_FIFO_RSL(lp, 0x00);
312 /* now, enable interrupts */
313 mask = INT_EN_TDFA_EN_ | INT_EN_TSFL_EN_ | INT_EN_RSFL_EN_ |
314 INT_EN_GPT_INT_EN_ | INT_EN_RXDFH_INT_EN_ | INT_EN_RXE_EN_ |
316 if (IS_REV_A(lp->revision))
317 mask|=INT_EN_RDFL_EN_;
319 mask|=INT_EN_RDFO_EN_;
321 SMC_ENABLE_INT(lp, mask);
323 spin_unlock_irqrestore(&lp->lock, flags);
327 * this puts the device in an inactive state
329 static void smc911x_shutdown(struct net_device *dev)
331 struct smc911x_local *lp = netdev_priv(dev);
335 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", CARDNAME, __func__);
338 SMC_SET_INT_EN(lp, 0);
340 /* Turn of Rx and TX */
341 spin_lock_irqsave(&lp->lock, flags);
342 SMC_GET_MAC_CR(lp, cr);
343 cr &= ~(MAC_CR_TXEN_ | MAC_CR_RXEN_ | MAC_CR_HBDIS_);
344 SMC_SET_MAC_CR(lp, cr);
345 SMC_SET_TX_CFG(lp, TX_CFG_STOP_TX_);
346 spin_unlock_irqrestore(&lp->lock, flags);
349 static inline void smc911x_drop_pkt(struct net_device *dev)
351 struct smc911x_local *lp = netdev_priv(dev);
352 unsigned int fifo_count, timeout, reg;
354 DBG(SMC_DEBUG_FUNC | SMC_DEBUG_RX, "%s: --> %s\n", CARDNAME, __func__);
355 fifo_count = SMC_GET_RX_FIFO_INF(lp) & 0xFFFF;
356 if (fifo_count <= 4) {
357 /* Manually dump the packet data */
361 /* Fast forward through the bad packet */
362 SMC_SET_RX_DP_CTRL(lp, RX_DP_CTRL_FFWD_BUSY_);
366 reg = SMC_GET_RX_DP_CTRL(lp) & RX_DP_CTRL_FFWD_BUSY_;
367 } while (--timeout && reg);
369 PRINTK("%s: timeout waiting for RX fast forward\n", dev->name);
375 * This is the procedure to handle the receipt of a packet.
376 * It should be called after checking for packet presence in
377 * the RX status FIFO. It must be called with the spin lock
380 static inline void smc911x_rcv(struct net_device *dev)
382 struct smc911x_local *lp = netdev_priv(dev);
383 unsigned int pkt_len, status;
387 DBG(SMC_DEBUG_FUNC | SMC_DEBUG_RX, "%s: --> %s\n",
388 dev->name, __func__);
389 status = SMC_GET_RX_STS_FIFO(lp);
390 DBG(SMC_DEBUG_RX, "%s: Rx pkt len %d status 0x%08x\n",
391 dev->name, (status & 0x3fff0000) >> 16, status & 0xc000ffff);
392 pkt_len = (status & RX_STS_PKT_LEN_) >> 16;
393 if (status & RX_STS_ES_) {
394 /* Deal with a bad packet */
395 dev->stats.rx_errors++;
396 if (status & RX_STS_CRC_ERR_)
397 dev->stats.rx_crc_errors++;
399 if (status & RX_STS_LEN_ERR_)
400 dev->stats.rx_length_errors++;
401 if (status & RX_STS_MCAST_)
402 dev->stats.multicast++;
404 /* Remove the bad packet data from the RX FIFO */
405 smc911x_drop_pkt(dev);
407 /* Receive a valid packet */
408 /* Alloc a buffer with extra room for DMA alignment */
409 skb=dev_alloc_skb(pkt_len+32);
410 if (unlikely(skb == NULL)) {
411 PRINTK( "%s: Low memory, rcvd packet dropped.\n",
413 dev->stats.rx_dropped++;
414 smc911x_drop_pkt(dev);
417 /* Align IP header to 32 bits
418 * Note that the device is configured to add a 2
419 * byte padding to the packet start, so we really
420 * want to write to the orignal data pointer */
423 skb_put(skb,pkt_len-4);
427 /* Lower the FIFO threshold if possible */
428 fifo = SMC_GET_FIFO_INT(lp);
429 if (fifo & 0xFF) fifo--;
430 DBG(SMC_DEBUG_RX, "%s: Setting RX stat FIFO threshold to %d\n",
431 dev->name, fifo & 0xff);
432 SMC_SET_FIFO_INT(lp, fifo);
434 SMC_SET_RX_CFG(lp, RX_CFG_RX_END_ALGN16_ | ((2<<8) & RX_CFG_RXDOFF_));
435 lp->rxdma_active = 1;
436 lp->current_rx_skb = skb;
437 SMC_PULL_DATA(lp, data, (pkt_len+2+15) & ~15);
438 /* Packet processing deferred to DMA RX interrupt */
441 SMC_SET_RX_CFG(lp, RX_CFG_RX_END_ALGN4_ | ((2<<8) & RX_CFG_RXDOFF_));
442 SMC_PULL_DATA(lp, data, pkt_len+2+3);
444 DBG(SMC_DEBUG_PKTS, "%s: Received packet\n", dev->name);
445 PRINT_PKT(data, ((pkt_len - 4) <= 64) ? pkt_len - 4 : 64);
446 skb->protocol = eth_type_trans(skb, dev);
448 dev->stats.rx_packets++;
449 dev->stats.rx_bytes += pkt_len-4;
455 * This is called to actually send a packet to the chip.
457 static void smc911x_hardware_send_pkt(struct net_device *dev)
459 struct smc911x_local *lp = netdev_priv(dev);
461 unsigned int cmdA, cmdB, len;
464 DBG(SMC_DEBUG_FUNC | SMC_DEBUG_TX, "%s: --> %s\n", dev->name, __func__);
465 BUG_ON(lp->pending_tx_skb == NULL);
467 skb = lp->pending_tx_skb;
468 lp->pending_tx_skb = NULL;
470 /* cmdA {25:24] data alignment [20:16] start offset [10:0] buffer length */
471 /* cmdB {31:16] pkt tag [10:0] length */
473 /* 16 byte buffer alignment mode */
474 buf = (char*)((u32)(skb->data) & ~0xF);
475 len = (skb->len + 0xF + ((u32)skb->data & 0xF)) & ~0xF;
476 cmdA = (1<<24) | (((u32)skb->data & 0xF)<<16) |
477 TX_CMD_A_INT_FIRST_SEG_ | TX_CMD_A_INT_LAST_SEG_ |
480 buf = (char*)((u32)skb->data & ~0x3);
481 len = (skb->len + 3 + ((u32)skb->data & 3)) & ~0x3;
482 cmdA = (((u32)skb->data & 0x3) << 16) |
483 TX_CMD_A_INT_FIRST_SEG_ | TX_CMD_A_INT_LAST_SEG_ |
486 /* tag is packet length so we can use this in stats update later */
487 cmdB = (skb->len << 16) | (skb->len & 0x7FF);
489 DBG(SMC_DEBUG_TX, "%s: TX PKT LENGTH 0x%04x (%d) BUF 0x%p CMDA 0x%08x CMDB 0x%08x\n",
490 dev->name, len, len, buf, cmdA, cmdB);
491 SMC_SET_TX_FIFO(lp, cmdA);
492 SMC_SET_TX_FIFO(lp, cmdB);
494 DBG(SMC_DEBUG_PKTS, "%s: Transmitted packet\n", dev->name);
495 PRINT_PKT(buf, len <= 64 ? len : 64);
497 /* Send pkt via PIO or DMA */
499 lp->current_tx_skb = skb;
500 SMC_PUSH_DATA(lp, buf, len);
501 /* DMA complete IRQ will free buffer and set jiffies */
503 SMC_PUSH_DATA(lp, buf, len);
504 dev->trans_start = jiffies;
505 dev_kfree_skb_irq(skb);
507 if (!lp->tx_throttle) {
508 netif_wake_queue(dev);
510 SMC_ENABLE_INT(lp, INT_EN_TDFA_EN_ | INT_EN_TSFL_EN_);
514 * Since I am not sure if I will have enough room in the chip's ram
515 * to store the packet, I call this routine which either sends it
516 * now, or set the card to generates an interrupt when ready
519 static int smc911x_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
521 struct smc911x_local *lp = netdev_priv(dev);
525 DBG(SMC_DEBUG_FUNC | SMC_DEBUG_TX, "%s: --> %s\n",
526 dev->name, __func__);
528 spin_lock_irqsave(&lp->lock, flags);
530 BUG_ON(lp->pending_tx_skb != NULL);
532 free = SMC_GET_TX_FIFO_INF(lp) & TX_FIFO_INF_TDFREE_;
533 DBG(SMC_DEBUG_TX, "%s: TX free space %d\n", dev->name, free);
535 /* Turn off the flow when running out of space in FIFO */
536 if (free <= SMC911X_TX_FIFO_LOW_THRESHOLD) {
537 DBG(SMC_DEBUG_TX, "%s: Disabling data flow due to low FIFO space (%d)\n",
539 /* Reenable when at least 1 packet of size MTU present */
540 SMC_SET_FIFO_TDA(lp, (SMC911X_TX_FIFO_LOW_THRESHOLD)/64);
542 netif_stop_queue(dev);
545 /* Drop packets when we run out of space in TX FIFO
546 * Account for overhead required for:
548 * Tx command words 8 bytes
549 * Start offset 15 bytes
550 * End padding 15 bytes
552 if (unlikely(free < (skb->len + 8 + 15 + 15))) {
553 printk("%s: No Tx free space %d < %d\n",
554 dev->name, free, skb->len);
555 lp->pending_tx_skb = NULL;
556 dev->stats.tx_errors++;
557 dev->stats.tx_dropped++;
558 spin_unlock_irqrestore(&lp->lock, flags);
565 /* If the DMA is already running then defer this packet Tx until
566 * the DMA IRQ starts it
568 if (lp->txdma_active) {
569 DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, "%s: Tx DMA running, deferring packet\n", dev->name);
570 lp->pending_tx_skb = skb;
571 netif_stop_queue(dev);
572 spin_unlock_irqrestore(&lp->lock, flags);
575 DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, "%s: Activating Tx DMA\n", dev->name);
576 lp->txdma_active = 1;
580 lp->pending_tx_skb = skb;
581 smc911x_hardware_send_pkt(dev);
582 spin_unlock_irqrestore(&lp->lock, flags);
588 * This handles a TX status interrupt, which is only called when:
589 * - a TX error occurred, or
590 * - TX of a packet completed.
592 static void smc911x_tx(struct net_device *dev)
594 struct smc911x_local *lp = netdev_priv(dev);
595 unsigned int tx_status;
597 DBG(SMC_DEBUG_FUNC | SMC_DEBUG_TX, "%s: --> %s\n",
598 dev->name, __func__);
600 /* Collect the TX status */
601 while (((SMC_GET_TX_FIFO_INF(lp) & TX_FIFO_INF_TSUSED_) >> 16) != 0) {
602 DBG(SMC_DEBUG_TX, "%s: Tx stat FIFO used 0x%04x\n",
604 (SMC_GET_TX_FIFO_INF(lp) & TX_FIFO_INF_TSUSED_) >> 16);
605 tx_status = SMC_GET_TX_STS_FIFO(lp);
606 dev->stats.tx_packets++;
607 dev->stats.tx_bytes+=tx_status>>16;
608 DBG(SMC_DEBUG_TX, "%s: Tx FIFO tag 0x%04x status 0x%04x\n",
609 dev->name, (tx_status & 0xffff0000) >> 16,
610 tx_status & 0x0000ffff);
611 /* count Tx errors, but ignore lost carrier errors when in
612 * full-duplex mode */
613 if ((tx_status & TX_STS_ES_) && !(lp->ctl_rfduplx &&
614 !(tx_status & 0x00000306))) {
615 dev->stats.tx_errors++;
617 if (tx_status & TX_STS_MANY_COLL_) {
618 dev->stats.collisions+=16;
619 dev->stats.tx_aborted_errors++;
621 dev->stats.collisions+=(tx_status & TX_STS_COLL_CNT_) >> 3;
623 /* carrier error only has meaning for half-duplex communication */
624 if ((tx_status & (TX_STS_LOC_ | TX_STS_NO_CARR_)) &&
626 dev->stats.tx_carrier_errors++;
628 if (tx_status & TX_STS_LATE_COLL_) {
629 dev->stats.collisions++;
630 dev->stats.tx_aborted_errors++;
636 /*---PHY CONTROL AND CONFIGURATION-----------------------------------------*/
638 * Reads a register from the MII Management serial interface
641 static int smc911x_phy_read(struct net_device *dev, int phyaddr, int phyreg)
643 struct smc911x_local *lp = netdev_priv(dev);
644 unsigned int phydata;
646 SMC_GET_MII(lp, phyreg, phyaddr, phydata);
648 DBG(SMC_DEBUG_MISC, "%s: phyaddr=0x%x, phyreg=0x%02x, phydata=0x%04x\n",
649 __func__, phyaddr, phyreg, phydata);
655 * Writes a register to the MII Management serial interface
657 static void smc911x_phy_write(struct net_device *dev, int phyaddr, int phyreg,
660 struct smc911x_local *lp = netdev_priv(dev);
662 DBG(SMC_DEBUG_MISC, "%s: phyaddr=0x%x, phyreg=0x%x, phydata=0x%x\n",
663 __func__, phyaddr, phyreg, phydata);
665 SMC_SET_MII(lp, phyreg, phyaddr, phydata);
669 * Finds and reports the PHY address (115 and 117 have external
670 * PHY interface 118 has internal only
672 static void smc911x_phy_detect(struct net_device *dev)
674 struct smc911x_local *lp = netdev_priv(dev);
676 unsigned int cfg, id1, id2;
678 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
683 * Scan all 32 PHY addresses if necessary, starting at
684 * PHY#1 to PHY#31, and then PHY#0 last.
686 switch(lp->version) {
691 cfg = SMC_GET_HW_CFG(lp);
692 if (cfg & HW_CFG_EXT_PHY_DET_) {
693 cfg &= ~HW_CFG_PHY_CLK_SEL_;
694 cfg |= HW_CFG_PHY_CLK_SEL_CLK_DIS_;
695 SMC_SET_HW_CFG(lp, cfg);
696 udelay(10); /* Wait for clocks to stop */
698 cfg |= HW_CFG_EXT_PHY_EN_;
699 SMC_SET_HW_CFG(lp, cfg);
700 udelay(10); /* Wait for clocks to stop */
702 cfg &= ~HW_CFG_PHY_CLK_SEL_;
703 cfg |= HW_CFG_PHY_CLK_SEL_EXT_PHY_;
704 SMC_SET_HW_CFG(lp, cfg);
705 udelay(10); /* Wait for clocks to stop */
707 cfg |= HW_CFG_SMI_SEL_;
708 SMC_SET_HW_CFG(lp, cfg);
710 for (phyaddr = 1; phyaddr < 32; ++phyaddr) {
712 /* Read the PHY identifiers */
713 SMC_GET_PHY_ID1(lp, phyaddr & 31, id1);
714 SMC_GET_PHY_ID2(lp, phyaddr & 31, id2);
716 /* Make sure it is a valid identifier */
717 if (id1 != 0x0000 && id1 != 0xffff &&
718 id1 != 0x8000 && id2 != 0x0000 &&
719 id2 != 0xffff && id2 != 0x8000) {
720 /* Save the PHY's address */
721 lp->mii.phy_id = phyaddr & 31;
722 lp->phy_type = id1 << 16 | id2;
727 /* Found an external PHY */
731 /* Internal media only */
732 SMC_GET_PHY_ID1(lp, 1, id1);
733 SMC_GET_PHY_ID2(lp, 1, id2);
734 /* Save the PHY's address */
736 lp->phy_type = id1 << 16 | id2;
739 DBG(SMC_DEBUG_MISC, "%s: phy_id1=0x%x, phy_id2=0x%x phyaddr=0x%d\n",
740 dev->name, id1, id2, lp->mii.phy_id);
744 * Sets the PHY to a configuration as determined by the user.
745 * Called with spin_lock held.
747 static int smc911x_phy_fixed(struct net_device *dev)
749 struct smc911x_local *lp = netdev_priv(dev);
750 int phyaddr = lp->mii.phy_id;
753 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
755 /* Enter Link Disable state */
756 SMC_GET_PHY_BMCR(lp, phyaddr, bmcr);
758 SMC_SET_PHY_BMCR(lp, phyaddr, bmcr);
761 * Set our fixed capabilities
762 * Disable auto-negotiation
764 bmcr &= ~BMCR_ANENABLE;
766 bmcr |= BMCR_FULLDPLX;
768 if (lp->ctl_rspeed == 100)
769 bmcr |= BMCR_SPEED100;
771 /* Write our capabilities to the phy control register */
772 SMC_SET_PHY_BMCR(lp, phyaddr, bmcr);
774 /* Re-Configure the Receive/Phy Control register */
776 SMC_SET_PHY_BMCR(lp, phyaddr, bmcr);
782 * smc911x_phy_reset - reset the phy
786 * Issue a software reset for the specified PHY and
787 * wait up to 100ms for the reset to complete. We should
788 * not access the PHY for 50ms after issuing the reset.
790 * The time to wait appears to be dependent on the PHY.
793 static int smc911x_phy_reset(struct net_device *dev, int phy)
795 struct smc911x_local *lp = netdev_priv(dev);
800 DBG(SMC_DEBUG_FUNC, "%s: --> %s()\n", dev->name, __func__);
802 spin_lock_irqsave(&lp->lock, flags);
803 reg = SMC_GET_PMT_CTRL(lp);
805 reg |= PMT_CTRL_PHY_RST_;
806 SMC_SET_PMT_CTRL(lp, reg);
807 spin_unlock_irqrestore(&lp->lock, flags);
808 for (timeout = 2; timeout; timeout--) {
810 spin_lock_irqsave(&lp->lock, flags);
811 reg = SMC_GET_PMT_CTRL(lp);
812 spin_unlock_irqrestore(&lp->lock, flags);
813 if (!(reg & PMT_CTRL_PHY_RST_)) {
814 /* extra delay required because the phy may
815 * not be completed with its reset
816 * when PHY_BCR_RESET_ is cleared. 256us
817 * should suffice, but use 500us to be safe
824 return reg & PMT_CTRL_PHY_RST_;
828 * smc911x_phy_powerdown - powerdown phy
832 * Power down the specified PHY
834 static void smc911x_phy_powerdown(struct net_device *dev, int phy)
836 struct smc911x_local *lp = netdev_priv(dev);
839 /* Enter Link Disable state */
840 SMC_GET_PHY_BMCR(lp, phy, bmcr);
842 SMC_SET_PHY_BMCR(lp, phy, bmcr);
846 * smc911x_phy_check_media - check the media status and adjust BMCR
848 * @init: set true for initialisation
850 * Select duplex mode depending on negotiation state. This
851 * also updates our carrier state.
853 static void smc911x_phy_check_media(struct net_device *dev, int init)
855 struct smc911x_local *lp = netdev_priv(dev);
856 int phyaddr = lp->mii.phy_id;
857 unsigned int bmcr, cr;
859 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
861 if (mii_check_media(&lp->mii, netif_msg_link(lp), init)) {
862 /* duplex state has changed */
863 SMC_GET_PHY_BMCR(lp, phyaddr, bmcr);
864 SMC_GET_MAC_CR(lp, cr);
865 if (lp->mii.full_duplex) {
866 DBG(SMC_DEBUG_MISC, "%s: Configuring for full-duplex mode\n", dev->name);
867 bmcr |= BMCR_FULLDPLX;
868 cr |= MAC_CR_RCVOWN_;
870 DBG(SMC_DEBUG_MISC, "%s: Configuring for half-duplex mode\n", dev->name);
871 bmcr &= ~BMCR_FULLDPLX;
872 cr &= ~MAC_CR_RCVOWN_;
874 SMC_SET_PHY_BMCR(lp, phyaddr, bmcr);
875 SMC_SET_MAC_CR(lp, cr);
880 * Configures the specified PHY through the MII management interface
881 * using Autonegotiation.
882 * Calls smc911x_phy_fixed() if the user has requested a certain config.
883 * If RPC ANEG bit is set, the media selection is dependent purely on
884 * the selection by the MII (either in the MII BMCR reg or the result
885 * of autonegotiation.) If the RPC ANEG bit is cleared, the selection
886 * is controlled by the RPC SPEED and RPC DPLX bits.
888 static void smc911x_phy_configure(struct work_struct *work)
890 struct smc911x_local *lp = container_of(work, struct smc911x_local,
892 struct net_device *dev = lp->netdev;
893 int phyaddr = lp->mii.phy_id;
894 int my_phy_caps; /* My PHY capabilities */
895 int my_ad_caps; /* My Advertised capabilities */
899 DBG(SMC_DEBUG_FUNC, "%s: --> %s()\n", dev->name, __func__);
902 * We should not be called if phy_type is zero.
904 if (lp->phy_type == 0)
907 if (smc911x_phy_reset(dev, phyaddr)) {
908 printk("%s: PHY reset timed out\n", dev->name);
911 spin_lock_irqsave(&lp->lock, flags);
914 * Enable PHY Interrupts (for register 18)
915 * Interrupts listed here are enabled
917 SMC_SET_PHY_INT_MASK(lp, phyaddr, PHY_INT_MASK_ENERGY_ON_ |
918 PHY_INT_MASK_ANEG_COMP_ | PHY_INT_MASK_REMOTE_FAULT_ |
919 PHY_INT_MASK_LINK_DOWN_);
921 /* If the user requested no auto neg, then go set his request */
922 if (lp->mii.force_media) {
923 smc911x_phy_fixed(dev);
924 goto smc911x_phy_configure_exit;
927 /* Copy our capabilities from MII_BMSR to MII_ADVERTISE */
928 SMC_GET_PHY_BMSR(lp, phyaddr, my_phy_caps);
929 if (!(my_phy_caps & BMSR_ANEGCAPABLE)) {
930 printk(KERN_INFO "Auto negotiation NOT supported\n");
931 smc911x_phy_fixed(dev);
932 goto smc911x_phy_configure_exit;
935 /* CSMA capable w/ both pauses */
936 my_ad_caps = ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
938 if (my_phy_caps & BMSR_100BASE4)
939 my_ad_caps |= ADVERTISE_100BASE4;
940 if (my_phy_caps & BMSR_100FULL)
941 my_ad_caps |= ADVERTISE_100FULL;
942 if (my_phy_caps & BMSR_100HALF)
943 my_ad_caps |= ADVERTISE_100HALF;
944 if (my_phy_caps & BMSR_10FULL)
945 my_ad_caps |= ADVERTISE_10FULL;
946 if (my_phy_caps & BMSR_10HALF)
947 my_ad_caps |= ADVERTISE_10HALF;
949 /* Disable capabilities not selected by our user */
950 if (lp->ctl_rspeed != 100)
951 my_ad_caps &= ~(ADVERTISE_100BASE4|ADVERTISE_100FULL|ADVERTISE_100HALF);
953 if (!lp->ctl_rfduplx)
954 my_ad_caps &= ~(ADVERTISE_100FULL|ADVERTISE_10FULL);
956 /* Update our Auto-Neg Advertisement Register */
957 SMC_SET_PHY_MII_ADV(lp, phyaddr, my_ad_caps);
958 lp->mii.advertising = my_ad_caps;
961 * Read the register back. Without this, it appears that when
962 * auto-negotiation is restarted, sometimes it isn't ready and
963 * the link does not come up.
966 SMC_GET_PHY_MII_ADV(lp, phyaddr, status);
968 DBG(SMC_DEBUG_MISC, "%s: phy caps=0x%04x\n", dev->name, my_phy_caps);
969 DBG(SMC_DEBUG_MISC, "%s: phy advertised caps=0x%04x\n", dev->name, my_ad_caps);
971 /* Restart auto-negotiation process in order to advertise my caps */
972 SMC_SET_PHY_BMCR(lp, phyaddr, BMCR_ANENABLE | BMCR_ANRESTART);
974 smc911x_phy_check_media(dev, 1);
976 smc911x_phy_configure_exit:
977 spin_unlock_irqrestore(&lp->lock, flags);
981 * smc911x_phy_interrupt
983 * Purpose: Handle interrupts relating to PHY register 18. This is
984 * called from the "hard" interrupt handler under our private spinlock.
986 static void smc911x_phy_interrupt(struct net_device *dev)
988 struct smc911x_local *lp = netdev_priv(dev);
989 int phyaddr = lp->mii.phy_id;
992 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
994 if (lp->phy_type == 0)
997 smc911x_phy_check_media(dev, 0);
998 /* read to clear status bits */
999 SMC_GET_PHY_INT_SRC(lp, phyaddr,status);
1000 DBG(SMC_DEBUG_MISC, "%s: PHY interrupt status 0x%04x\n",
1001 dev->name, status & 0xffff);
1002 DBG(SMC_DEBUG_MISC, "%s: AFC_CFG 0x%08x\n",
1003 dev->name, SMC_GET_AFC_CFG(lp));
1006 /*--- END PHY CONTROL AND CONFIGURATION-------------------------------------*/
1009 * This is the main routine of the driver, to handle the device when
1010 * it needs some attention.
1012 static irqreturn_t smc911x_interrupt(int irq, void *dev_id)
1014 struct net_device *dev = dev_id;
1015 struct smc911x_local *lp = netdev_priv(dev);
1016 unsigned int status, mask, timeout;
1017 unsigned int rx_overrun=0, cr, pkts;
1018 unsigned long flags;
1020 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1022 spin_lock_irqsave(&lp->lock, flags);
1024 /* Spurious interrupt check */
1025 if ((SMC_GET_IRQ_CFG(lp) & (INT_CFG_IRQ_INT_ | INT_CFG_IRQ_EN_)) !=
1026 (INT_CFG_IRQ_INT_ | INT_CFG_IRQ_EN_)) {
1027 spin_unlock_irqrestore(&lp->lock, flags);
1031 mask = SMC_GET_INT_EN(lp);
1032 SMC_SET_INT_EN(lp, 0);
1034 /* set a timeout value, so I don't stay here forever */
1039 status = SMC_GET_INT(lp);
1041 DBG(SMC_DEBUG_MISC, "%s: INT 0x%08x MASK 0x%08x OUTSIDE MASK 0x%08x\n",
1042 dev->name, status, mask, status & ~mask);
1048 /* Handle SW interrupt condition */
1049 if (status & INT_STS_SW_INT_) {
1050 SMC_ACK_INT(lp, INT_STS_SW_INT_);
1051 mask &= ~INT_EN_SW_INT_EN_;
1053 /* Handle various error conditions */
1054 if (status & INT_STS_RXE_) {
1055 SMC_ACK_INT(lp, INT_STS_RXE_);
1056 dev->stats.rx_errors++;
1058 if (status & INT_STS_RXDFH_INT_) {
1059 SMC_ACK_INT(lp, INT_STS_RXDFH_INT_);
1060 dev->stats.rx_dropped+=SMC_GET_RX_DROP(lp);
1062 /* Undocumented interrupt-what is the right thing to do here? */
1063 if (status & INT_STS_RXDF_INT_) {
1064 SMC_ACK_INT(lp, INT_STS_RXDF_INT_);
1067 /* Rx Data FIFO exceeds set level */
1068 if (status & INT_STS_RDFL_) {
1069 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);
1074 DBG(SMC_DEBUG_RX, "%s: RX overrun\n", dev->name);
1075 dev->stats.rx_errors++;
1076 dev->stats.rx_fifo_errors++;
1078 SMC_ACK_INT(lp, INT_STS_RDFL_);
1080 if (status & INT_STS_RDFO_) {
1081 if (!IS_REV_A(lp->revision)) {
1082 SMC_GET_MAC_CR(lp, cr);
1083 cr &= ~MAC_CR_RXEN_;
1084 SMC_SET_MAC_CR(lp, cr);
1086 DBG(SMC_DEBUG_RX, "%s: RX overrun\n", dev->name);
1087 dev->stats.rx_errors++;
1088 dev->stats.rx_fifo_errors++;
1090 SMC_ACK_INT(lp, INT_STS_RDFO_);
1092 /* Handle receive condition */
1093 if ((status & INT_STS_RSFL_) || rx_overrun) {
1095 DBG(SMC_DEBUG_RX, "%s: RX irq\n", dev->name);
1096 fifo = SMC_GET_RX_FIFO_INF(lp);
1097 pkts = (fifo & RX_FIFO_INF_RXSUSED_) >> 16;
1098 DBG(SMC_DEBUG_RX, "%s: Rx FIFO pkts %d, bytes %d\n",
1099 dev->name, pkts, fifo & 0xFFFF );
1103 if (lp->rxdma_active){
1104 DBG(SMC_DEBUG_RX | SMC_DEBUG_DMA,
1105 "%s: RX DMA active\n", dev->name);
1106 /* The DMA is already running so up the IRQ threshold */
1107 fifo = SMC_GET_FIFO_INT(lp) & ~0xFF;
1108 fifo |= pkts & 0xFF;
1110 "%s: Setting RX stat FIFO threshold to %d\n",
1111 dev->name, fifo & 0xff);
1112 SMC_SET_FIFO_INT(lp, fifo);
1117 SMC_ACK_INT(lp, INT_STS_RSFL_);
1119 /* Handle transmit FIFO available */
1120 if (status & INT_STS_TDFA_) {
1121 DBG(SMC_DEBUG_TX, "%s: TX data FIFO space available irq\n", dev->name);
1122 SMC_SET_FIFO_TDA(lp, 0xFF);
1123 lp->tx_throttle = 0;
1125 if (!lp->txdma_active)
1127 netif_wake_queue(dev);
1128 SMC_ACK_INT(lp, INT_STS_TDFA_);
1130 /* Handle transmit done condition */
1132 if (status & (INT_STS_TSFL_ | INT_STS_GPT_INT_)) {
1133 DBG(SMC_DEBUG_TX | SMC_DEBUG_MISC,
1134 "%s: Tx stat FIFO limit (%d) /GPT irq\n",
1135 dev->name, (SMC_GET_FIFO_INT(lp) & 0x00ff0000) >> 16);
1137 SMC_SET_GPT_CFG(lp, GPT_CFG_TIMER_EN_ | 10000);
1138 SMC_ACK_INT(lp, INT_STS_TSFL_);
1139 SMC_ACK_INT(lp, INT_STS_TSFL_ | INT_STS_GPT_INT_);
1142 if (status & INT_STS_TSFL_) {
1143 DBG(SMC_DEBUG_TX, "%s: TX status FIFO limit (%d) irq\n", dev->name, );
1145 SMC_ACK_INT(lp, INT_STS_TSFL_);
1148 if (status & INT_STS_GPT_INT_) {
1149 DBG(SMC_DEBUG_RX, "%s: IRQ_CFG 0x%08x FIFO_INT 0x%08x RX_CFG 0x%08x\n",
1151 SMC_GET_IRQ_CFG(lp),
1152 SMC_GET_FIFO_INT(lp),
1153 SMC_GET_RX_CFG(lp));
1154 DBG(SMC_DEBUG_RX, "%s: Rx Stat FIFO Used 0x%02x "
1155 "Data FIFO Used 0x%04x Stat FIFO 0x%08x\n",
1157 (SMC_GET_RX_FIFO_INF(lp) & 0x00ff0000) >> 16,
1158 SMC_GET_RX_FIFO_INF(lp) & 0xffff,
1159 SMC_GET_RX_STS_FIFO_PEEK(lp));
1160 SMC_SET_GPT_CFG(lp, GPT_CFG_TIMER_EN_ | 10000);
1161 SMC_ACK_INT(lp, INT_STS_GPT_INT_);
1165 /* Handle PHY interrupt condition */
1166 if (status & INT_STS_PHY_INT_) {
1167 DBG(SMC_DEBUG_MISC, "%s: PHY irq\n", dev->name);
1168 smc911x_phy_interrupt(dev);
1169 SMC_ACK_INT(lp, INT_STS_PHY_INT_);
1171 } while (--timeout);
1173 /* restore mask state */
1174 SMC_SET_INT_EN(lp, mask);
1176 DBG(SMC_DEBUG_MISC, "%s: Interrupt done (%d loops)\n",
1177 dev->name, 8-timeout);
1179 spin_unlock_irqrestore(&lp->lock, flags);
1186 smc911x_tx_dma_irq(int dma, void *data)
1188 struct net_device *dev = (struct net_device *)data;
1189 struct smc911x_local *lp = netdev_priv(dev);
1190 struct sk_buff *skb = lp->current_tx_skb;
1191 unsigned long flags;
1193 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1195 DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, "%s: TX DMA irq handler\n", dev->name);
1196 /* Clear the DMA interrupt sources */
1197 SMC_DMA_ACK_IRQ(dev, dma);
1198 BUG_ON(skb == NULL);
1199 dma_unmap_single(NULL, tx_dmabuf, tx_dmalen, DMA_TO_DEVICE);
1200 dev->trans_start = jiffies;
1201 dev_kfree_skb_irq(skb);
1202 lp->current_tx_skb = NULL;
1203 if (lp->pending_tx_skb != NULL)
1204 smc911x_hardware_send_pkt(dev);
1206 DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA,
1207 "%s: No pending Tx packets. DMA disabled\n", dev->name);
1208 spin_lock_irqsave(&lp->lock, flags);
1209 lp->txdma_active = 0;
1210 if (!lp->tx_throttle) {
1211 netif_wake_queue(dev);
1213 spin_unlock_irqrestore(&lp->lock, flags);
1216 DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA,
1217 "%s: TX DMA irq completed\n", dev->name);
1220 smc911x_rx_dma_irq(int dma, void *data)
1222 struct net_device *dev = (struct net_device *)data;
1223 unsigned long ioaddr = dev->base_addr;
1224 struct smc911x_local *lp = netdev_priv(dev);
1225 struct sk_buff *skb = lp->current_rx_skb;
1226 unsigned long flags;
1229 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1230 DBG(SMC_DEBUG_RX | SMC_DEBUG_DMA, "%s: RX DMA irq handler\n", dev->name);
1231 /* Clear the DMA interrupt sources */
1232 SMC_DMA_ACK_IRQ(dev, dma);
1233 dma_unmap_single(NULL, rx_dmabuf, rx_dmalen, DMA_FROM_DEVICE);
1234 BUG_ON(skb == NULL);
1235 lp->current_rx_skb = NULL;
1236 PRINT_PKT(skb->data, skb->len);
1237 skb->protocol = eth_type_trans(skb, dev);
1238 dev->stats.rx_packets++;
1239 dev->stats.rx_bytes += skb->len;
1242 spin_lock_irqsave(&lp->lock, flags);
1243 pkts = (SMC_GET_RX_FIFO_INF(lp) & RX_FIFO_INF_RXSUSED_) >> 16;
1247 lp->rxdma_active = 0;
1249 spin_unlock_irqrestore(&lp->lock, flags);
1250 DBG(SMC_DEBUG_RX | SMC_DEBUG_DMA,
1251 "%s: RX DMA irq completed. DMA RX FIFO PKTS %d\n",
1254 #endif /* SMC_USE_DMA */
1256 #ifdef CONFIG_NET_POLL_CONTROLLER
1258 * Polling receive - used by netconsole and other diagnostic tools
1259 * to allow network i/o with interrupts disabled.
1261 static void smc911x_poll_controller(struct net_device *dev)
1263 disable_irq(dev->irq);
1264 smc911x_interrupt(dev->irq, dev);
1265 enable_irq(dev->irq);
1269 /* Our watchdog timed out. Called by the networking layer */
1270 static void smc911x_timeout(struct net_device *dev)
1272 struct smc911x_local *lp = netdev_priv(dev);
1274 unsigned long flags;
1276 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1278 spin_lock_irqsave(&lp->lock, flags);
1279 status = SMC_GET_INT(lp);
1280 mask = SMC_GET_INT_EN(lp);
1281 spin_unlock_irqrestore(&lp->lock, flags);
1282 DBG(SMC_DEBUG_MISC, "%s: INT 0x%02x MASK 0x%02x\n",
1283 dev->name, status, mask);
1285 /* Dump the current TX FIFO contents and restart */
1286 mask = SMC_GET_TX_CFG(lp);
1287 SMC_SET_TX_CFG(lp, mask | TX_CFG_TXS_DUMP_ | TX_CFG_TXD_DUMP_);
1289 * Reconfiguring the PHY doesn't seem like a bad idea here, but
1290 * smc911x_phy_configure() calls msleep() which calls schedule_timeout()
1291 * which calls schedule(). Hence we use a work queue.
1293 if (lp->phy_type != 0)
1294 schedule_work(&lp->phy_configure);
1296 /* We can accept TX packets again */
1297 dev->trans_start = jiffies; /* prevent tx timeout */
1298 netif_wake_queue(dev);
1302 * This routine will, depending on the values passed to it,
1303 * either make it accept multicast packets, go into
1304 * promiscuous mode (for TCPDUMP and cousins) or accept
1305 * a select set of multicast packets
1307 static void smc911x_set_multicast_list(struct net_device *dev)
1309 struct smc911x_local *lp = netdev_priv(dev);
1310 unsigned int multicast_table[2];
1311 unsigned int mcr, update_multicast = 0;
1312 unsigned long flags;
1314 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1316 spin_lock_irqsave(&lp->lock, flags);
1317 SMC_GET_MAC_CR(lp, mcr);
1318 spin_unlock_irqrestore(&lp->lock, flags);
1320 if (dev->flags & IFF_PROMISC) {
1322 DBG(SMC_DEBUG_MISC, "%s: RCR_PRMS\n", dev->name);
1323 mcr |= MAC_CR_PRMS_;
1326 * Here, I am setting this to accept all multicast packets.
1327 * I don't need to zero the multicast table, because the flag is
1328 * checked before the table is
1330 else if (dev->flags & IFF_ALLMULTI || netdev_mc_count(dev) > 16) {
1331 DBG(SMC_DEBUG_MISC, "%s: RCR_ALMUL\n", dev->name);
1332 mcr |= MAC_CR_MCPAS_;
1336 * This sets the internal hardware table to filter out unwanted
1337 * multicast packets before they take up memory.
1339 * The SMC chip uses a hash table where the high 6 bits of the CRC of
1340 * address are the offset into the table. If that bit is 1, then the
1341 * multicast packet is accepted. Otherwise, it's dropped silently.
1343 * To use the 6 bits as an offset into the table, the high 1 bit is
1344 * the number of the 32 bit register, while the low 5 bits are the bit
1345 * within that register.
1347 else if (!netdev_mc_empty(dev)) {
1348 struct netdev_hw_addr *ha;
1350 /* Set the Hash perfec mode */
1351 mcr |= MAC_CR_HPFILT_;
1353 /* start with a table of all zeros: reject all */
1354 memset(multicast_table, 0, sizeof(multicast_table));
1356 netdev_for_each_mc_addr(ha, dev) {
1359 /* make sure this is a multicast address -
1360 shouldn't this be a given if we have it here ? */
1361 if (!(*ha->addr & 1))
1364 /* upper 6 bits are used as hash index */
1365 position = ether_crc(ETH_ALEN, ha->addr)>>26;
1367 multicast_table[position>>5] |= 1 << (position&0x1f);
1370 /* be sure I get rid of flags I might have set */
1371 mcr &= ~(MAC_CR_PRMS_ | MAC_CR_MCPAS_);
1373 /* now, the table can be loaded into the chipset */
1374 update_multicast = 1;
1376 DBG(SMC_DEBUG_MISC, "%s: ~(MAC_CR_PRMS_|MAC_CR_MCPAS_)\n",
1378 mcr &= ~(MAC_CR_PRMS_ | MAC_CR_MCPAS_);
1381 * since I'm disabling all multicast entirely, I need to
1382 * clear the multicast list
1384 memset(multicast_table, 0, sizeof(multicast_table));
1385 update_multicast = 1;
1388 spin_lock_irqsave(&lp->lock, flags);
1389 SMC_SET_MAC_CR(lp, mcr);
1390 if (update_multicast) {
1392 "%s: update mcast hash table 0x%08x 0x%08x\n",
1393 dev->name, multicast_table[0], multicast_table[1]);
1394 SMC_SET_HASHL(lp, multicast_table[0]);
1395 SMC_SET_HASHH(lp, multicast_table[1]);
1397 spin_unlock_irqrestore(&lp->lock, flags);
1402 * Open and Initialize the board
1404 * Set up everything, reset the card, etc..
1407 smc911x_open(struct net_device *dev)
1409 struct smc911x_local *lp = netdev_priv(dev);
1411 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1414 * Check that the address is valid. If its not, refuse
1415 * to bring the device up. The user must specify an
1416 * address using ifconfig eth0 hw ether xx:xx:xx:xx:xx:xx
1418 if (!is_valid_ether_addr(dev->dev_addr)) {
1419 PRINTK("%s: no valid ethernet hw addr\n", __func__);
1423 /* reset the hardware */
1426 /* Configure the PHY, initialize the link state */
1427 smc911x_phy_configure(&lp->phy_configure);
1429 /* Turn on Tx + Rx */
1430 smc911x_enable(dev);
1432 netif_start_queue(dev);
1440 * this makes the board clean up everything that it can
1441 * and not talk to the outside world. Caused by
1442 * an 'ifconfig ethX down'
1444 static int smc911x_close(struct net_device *dev)
1446 struct smc911x_local *lp = netdev_priv(dev);
1448 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1450 netif_stop_queue(dev);
1451 netif_carrier_off(dev);
1453 /* clear everything */
1454 smc911x_shutdown(dev);
1456 if (lp->phy_type != 0) {
1457 /* We need to ensure that no calls to
1458 * smc911x_phy_configure are pending.
1460 cancel_work_sync(&lp->phy_configure);
1461 smc911x_phy_powerdown(dev, lp->mii.phy_id);
1464 if (lp->pending_tx_skb) {
1465 dev_kfree_skb(lp->pending_tx_skb);
1466 lp->pending_tx_skb = NULL;
1476 smc911x_ethtool_getsettings(struct net_device *dev, struct ethtool_cmd *cmd)
1478 struct smc911x_local *lp = netdev_priv(dev);
1480 unsigned long flags;
1482 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1486 if (lp->phy_type != 0) {
1487 spin_lock_irqsave(&lp->lock, flags);
1488 ret = mii_ethtool_gset(&lp->mii, cmd);
1489 spin_unlock_irqrestore(&lp->lock, flags);
1491 cmd->supported = SUPPORTED_10baseT_Half |
1492 SUPPORTED_10baseT_Full |
1493 SUPPORTED_TP | SUPPORTED_AUI;
1495 if (lp->ctl_rspeed == 10)
1496 cmd->speed = SPEED_10;
1497 else if (lp->ctl_rspeed == 100)
1498 cmd->speed = SPEED_100;
1500 cmd->autoneg = AUTONEG_DISABLE;
1501 if (lp->mii.phy_id==1)
1502 cmd->transceiver = XCVR_INTERNAL;
1504 cmd->transceiver = XCVR_EXTERNAL;
1506 SMC_GET_PHY_SPECIAL(lp, lp->mii.phy_id, status);
1508 (status & (PHY_SPECIAL_SPD_10FULL_ | PHY_SPECIAL_SPD_100FULL_)) ?
1509 DUPLEX_FULL : DUPLEX_HALF;
1517 smc911x_ethtool_setsettings(struct net_device *dev, struct ethtool_cmd *cmd)
1519 struct smc911x_local *lp = netdev_priv(dev);
1521 unsigned long flags;
1523 if (lp->phy_type != 0) {
1524 spin_lock_irqsave(&lp->lock, flags);
1525 ret = mii_ethtool_sset(&lp->mii, cmd);
1526 spin_unlock_irqrestore(&lp->lock, flags);
1528 if (cmd->autoneg != AUTONEG_DISABLE ||
1529 cmd->speed != SPEED_10 ||
1530 (cmd->duplex != DUPLEX_HALF && cmd->duplex != DUPLEX_FULL) ||
1531 (cmd->port != PORT_TP && cmd->port != PORT_AUI))
1534 lp->ctl_rfduplx = cmd->duplex == DUPLEX_FULL;
1543 smc911x_ethtool_getdrvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1545 strncpy(info->driver, CARDNAME, sizeof(info->driver));
1546 strncpy(info->version, version, sizeof(info->version));
1547 strncpy(info->bus_info, dev_name(dev->dev.parent), sizeof(info->bus_info));
1550 static int smc911x_ethtool_nwayreset(struct net_device *dev)
1552 struct smc911x_local *lp = netdev_priv(dev);
1554 unsigned long flags;
1556 if (lp->phy_type != 0) {
1557 spin_lock_irqsave(&lp->lock, flags);
1558 ret = mii_nway_restart(&lp->mii);
1559 spin_unlock_irqrestore(&lp->lock, flags);
1565 static u32 smc911x_ethtool_getmsglevel(struct net_device *dev)
1567 struct smc911x_local *lp = netdev_priv(dev);
1568 return lp->msg_enable;
1571 static void smc911x_ethtool_setmsglevel(struct net_device *dev, u32 level)
1573 struct smc911x_local *lp = netdev_priv(dev);
1574 lp->msg_enable = level;
1577 static int smc911x_ethtool_getregslen(struct net_device *dev)
1579 /* System regs + MAC regs + PHY regs */
1580 return (((E2P_CMD - ID_REV)/4 + 1) +
1581 (WUCSR - MAC_CR)+1 + 32) * sizeof(u32);
1584 static void smc911x_ethtool_getregs(struct net_device *dev,
1585 struct ethtool_regs* regs, void *buf)
1587 struct smc911x_local *lp = netdev_priv(dev);
1588 unsigned long flags;
1590 u32 *data = (u32*)buf;
1592 regs->version = lp->version;
1593 for(i=ID_REV;i<=E2P_CMD;i+=4) {
1594 data[j++] = SMC_inl(lp, i);
1596 for(i=MAC_CR;i<=WUCSR;i++) {
1597 spin_lock_irqsave(&lp->lock, flags);
1598 SMC_GET_MAC_CSR(lp, i, reg);
1599 spin_unlock_irqrestore(&lp->lock, flags);
1602 for(i=0;i<=31;i++) {
1603 spin_lock_irqsave(&lp->lock, flags);
1604 SMC_GET_MII(lp, i, lp->mii.phy_id, reg);
1605 spin_unlock_irqrestore(&lp->lock, flags);
1606 data[j++] = reg & 0xFFFF;
1610 static int smc911x_ethtool_wait_eeprom_ready(struct net_device *dev)
1612 struct smc911x_local *lp = netdev_priv(dev);
1613 unsigned int timeout;
1616 e2p_cmd = SMC_GET_E2P_CMD(lp);
1617 for(timeout=10;(e2p_cmd & E2P_CMD_EPC_BUSY_) && timeout; timeout--) {
1618 if (e2p_cmd & E2P_CMD_EPC_TIMEOUT_) {
1619 PRINTK("%s: %s timeout waiting for EEPROM to respond\n",
1620 dev->name, __func__);
1624 e2p_cmd = SMC_GET_E2P_CMD(lp);
1627 PRINTK("%s: %s timeout waiting for EEPROM CMD not busy\n",
1628 dev->name, __func__);
1634 static inline int smc911x_ethtool_write_eeprom_cmd(struct net_device *dev,
1637 struct smc911x_local *lp = netdev_priv(dev);
1640 if ((ret = smc911x_ethtool_wait_eeprom_ready(dev))!=0)
1642 SMC_SET_E2P_CMD(lp, E2P_CMD_EPC_BUSY_ |
1643 ((cmd) & (0x7<<28)) |
1648 static inline int smc911x_ethtool_read_eeprom_byte(struct net_device *dev,
1651 struct smc911x_local *lp = netdev_priv(dev);
1654 if ((ret = smc911x_ethtool_wait_eeprom_ready(dev))!=0)
1656 *data = SMC_GET_E2P_DATA(lp);
1660 static inline int smc911x_ethtool_write_eeprom_byte(struct net_device *dev,
1663 struct smc911x_local *lp = netdev_priv(dev);
1666 if ((ret = smc911x_ethtool_wait_eeprom_ready(dev))!=0)
1668 SMC_SET_E2P_DATA(lp, data);
1672 static int smc911x_ethtool_geteeprom(struct net_device *dev,
1673 struct ethtool_eeprom *eeprom, u8 *data)
1675 u8 eebuf[SMC911X_EEPROM_LEN];
1678 for(i=0;i<SMC911X_EEPROM_LEN;i++) {
1679 if ((ret=smc911x_ethtool_write_eeprom_cmd(dev, E2P_CMD_EPC_CMD_READ_, i ))!=0)
1681 if ((ret=smc911x_ethtool_read_eeprom_byte(dev, &eebuf[i]))!=0)
1684 memcpy(data, eebuf+eeprom->offset, eeprom->len);
1688 static int smc911x_ethtool_seteeprom(struct net_device *dev,
1689 struct ethtool_eeprom *eeprom, u8 *data)
1694 if ((ret=smc911x_ethtool_write_eeprom_cmd(dev, E2P_CMD_EPC_CMD_EWEN_, 0 ))!=0)
1696 for(i=eeprom->offset;i<(eeprom->offset+eeprom->len);i++) {
1698 if ((ret=smc911x_ethtool_write_eeprom_cmd(dev, E2P_CMD_EPC_CMD_ERASE_, i ))!=0)
1701 if ((ret=smc911x_ethtool_write_eeprom_byte(dev, *data))!=0)
1703 if ((ret=smc911x_ethtool_write_eeprom_cmd(dev, E2P_CMD_EPC_CMD_WRITE_, i ))!=0)
1709 static int smc911x_ethtool_geteeprom_len(struct net_device *dev)
1711 return SMC911X_EEPROM_LEN;
1714 static const struct ethtool_ops smc911x_ethtool_ops = {
1715 .get_settings = smc911x_ethtool_getsettings,
1716 .set_settings = smc911x_ethtool_setsettings,
1717 .get_drvinfo = smc911x_ethtool_getdrvinfo,
1718 .get_msglevel = smc911x_ethtool_getmsglevel,
1719 .set_msglevel = smc911x_ethtool_setmsglevel,
1720 .nway_reset = smc911x_ethtool_nwayreset,
1721 .get_link = ethtool_op_get_link,
1722 .get_regs_len = smc911x_ethtool_getregslen,
1723 .get_regs = smc911x_ethtool_getregs,
1724 .get_eeprom_len = smc911x_ethtool_geteeprom_len,
1725 .get_eeprom = smc911x_ethtool_geteeprom,
1726 .set_eeprom = smc911x_ethtool_seteeprom,
1732 * This routine has a simple purpose -- make the SMC chip generate an
1733 * interrupt, so an auto-detect routine can detect it, and find the IRQ,
1735 static int __devinit smc911x_findirq(struct net_device *dev)
1737 struct smc911x_local *lp = netdev_priv(dev);
1739 unsigned long cookie;
1741 DBG(SMC_DEBUG_FUNC, "--> %s\n", __func__);
1743 cookie = probe_irq_on();
1746 * Force a SW interrupt
1749 SMC_SET_INT_EN(lp, INT_EN_SW_INT_EN_);
1752 * Wait until positive that the interrupt has been generated
1757 int_status = SMC_GET_INT_EN(lp);
1758 if (int_status & INT_EN_SW_INT_EN_)
1759 break; /* got the interrupt */
1760 } while (--timeout);
1763 * there is really nothing that I can do here if timeout fails,
1764 * as autoirq_report will return a 0 anyway, which is what I
1765 * want in this case. Plus, the clean up is needed in both
1769 /* and disable all interrupts again */
1770 SMC_SET_INT_EN(lp, 0);
1772 /* and return what I found */
1773 return probe_irq_off(cookie);
1776 static const struct net_device_ops smc911x_netdev_ops = {
1777 .ndo_open = smc911x_open,
1778 .ndo_stop = smc911x_close,
1779 .ndo_start_xmit = smc911x_hard_start_xmit,
1780 .ndo_tx_timeout = smc911x_timeout,
1781 .ndo_set_multicast_list = smc911x_set_multicast_list,
1782 .ndo_change_mtu = eth_change_mtu,
1783 .ndo_validate_addr = eth_validate_addr,
1784 .ndo_set_mac_address = eth_mac_addr,
1785 #ifdef CONFIG_NET_POLL_CONTROLLER
1786 .ndo_poll_controller = smc911x_poll_controller,
1791 * Function: smc911x_probe(unsigned long ioaddr)
1794 * Tests to see if a given ioaddr points to an SMC911x chip.
1795 * Returns a 0 on success
1798 * (1) see if the endian word is OK
1799 * (1) see if I recognize the chip ID in the appropriate register
1801 * Here I do typical initialization tasks.
1803 * o Initialize the structure if needed
1804 * o print out my vanity message if not done so already
1805 * o print out what type of hardware is detected
1806 * o print out the ethernet address
1808 * o set up my private data
1809 * o configure the dev structure with my subroutines
1810 * o actually GRAB the irq.
1813 static int __devinit smc911x_probe(struct net_device *dev)
1815 struct smc911x_local *lp = netdev_priv(dev);
1817 unsigned int val, chip_id, revision;
1818 const char *version_string;
1819 unsigned long irq_flags;
1821 DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
1823 /* First, see if the endian word is recognized */
1824 val = SMC_GET_BYTE_TEST(lp);
1825 DBG(SMC_DEBUG_MISC, "%s: endian probe returned 0x%04x\n", CARDNAME, val);
1826 if (val != 0x87654321) {
1827 printk(KERN_ERR "Invalid chip endian 0x%08x\n",val);
1833 * check if the revision register is something that I
1834 * recognize. These might need to be added to later,
1835 * as future revisions could be added.
1837 chip_id = SMC_GET_PN(lp);
1838 DBG(SMC_DEBUG_MISC, "%s: id probe returned 0x%04x\n", CARDNAME, chip_id);
1839 for(i=0;chip_ids[i].id != 0; i++) {
1840 if (chip_ids[i].id == chip_id) break;
1842 if (!chip_ids[i].id) {
1843 printk(KERN_ERR "Unknown chip ID %04x\n", chip_id);
1847 version_string = chip_ids[i].name;
1849 revision = SMC_GET_REV(lp);
1850 DBG(SMC_DEBUG_MISC, "%s: revision = 0x%04x\n", CARDNAME, revision);
1852 /* At this point I'll assume that the chip is an SMC911x. */
1853 DBG(SMC_DEBUG_MISC, "%s: Found a %s\n", CARDNAME, chip_ids[i].name);
1855 /* Validate the TX FIFO size requested */
1856 if ((tx_fifo_kb < 2) || (tx_fifo_kb > 14)) {
1857 printk(KERN_ERR "Invalid TX FIFO size requested %d\n", tx_fifo_kb);
1862 /* fill in some of the fields */
1863 lp->version = chip_ids[i].id;
1864 lp->revision = revision;
1865 lp->tx_fifo_kb = tx_fifo_kb;
1866 /* Reverse calculate the RX FIFO size from the TX */
1867 lp->tx_fifo_size=(lp->tx_fifo_kb<<10) - 512;
1868 lp->rx_fifo_size= ((0x4000 - 512 - lp->tx_fifo_size) / 16) * 15;
1870 /* Set the automatic flow control values */
1871 switch(lp->tx_fifo_kb) {
1873 * AFC_HI is about ((Rx Data Fifo Size)*2/3)/64
1874 * AFC_LO is AFC_HI/2
1875 * BACK_DUR is about 5uS*(AFC_LO) rounded down
1877 case 2:/* 13440 Rx Data Fifo Size */
1878 lp->afc_cfg=0x008C46AF;break;
1879 case 3:/* 12480 Rx Data Fifo Size */
1880 lp->afc_cfg=0x0082419F;break;
1881 case 4:/* 11520 Rx Data Fifo Size */
1882 lp->afc_cfg=0x00783C9F;break;
1883 case 5:/* 10560 Rx Data Fifo Size */
1884 lp->afc_cfg=0x006E374F;break;
1885 case 6:/* 9600 Rx Data Fifo Size */
1886 lp->afc_cfg=0x0064328F;break;
1887 case 7:/* 8640 Rx Data Fifo Size */
1888 lp->afc_cfg=0x005A2D7F;break;
1889 case 8:/* 7680 Rx Data Fifo Size */
1890 lp->afc_cfg=0x0050287F;break;
1891 case 9:/* 6720 Rx Data Fifo Size */
1892 lp->afc_cfg=0x0046236F;break;
1893 case 10:/* 5760 Rx Data Fifo Size */
1894 lp->afc_cfg=0x003C1E6F;break;
1895 case 11:/* 4800 Rx Data Fifo Size */
1896 lp->afc_cfg=0x0032195F;break;
1898 * AFC_HI is ~1520 bytes less than RX Data Fifo Size
1899 * AFC_LO is AFC_HI/2
1900 * BACK_DUR is about 5uS*(AFC_LO) rounded down
1902 case 12:/* 3840 Rx Data Fifo Size */
1903 lp->afc_cfg=0x0024124F;break;
1904 case 13:/* 2880 Rx Data Fifo Size */
1905 lp->afc_cfg=0x0015073F;break;
1906 case 14:/* 1920 Rx Data Fifo Size */
1907 lp->afc_cfg=0x0006032F;break;
1909 PRINTK("%s: ERROR -- no AFC_CFG setting found",
1914 DBG(SMC_DEBUG_MISC | SMC_DEBUG_TX | SMC_DEBUG_RX,
1915 "%s: tx_fifo %d rx_fifo %d afc_cfg 0x%08x\n", CARDNAME,
1916 lp->tx_fifo_size, lp->rx_fifo_size, lp->afc_cfg);
1918 spin_lock_init(&lp->lock);
1921 dev->dev_addr[0] = 0x00;
1922 dev->dev_addr[1] = 0x09;
1923 dev->dev_addr[2] = 0xc0;
1924 dev->dev_addr[3] = 0xff;
1925 dev->dev_addr[4] = 0xec;
1926 dev->dev_addr[5] = 0x48;
1928 SMC_SET_MAC_ADDR(lp, dev->dev_addr);
1931 /* Get the MAC address */
1932 SMC_GET_MAC_ADDR(lp, dev->dev_addr);
1934 /* now, reset the chip, and put it into a known state */
1938 * If dev->irq is 0, then the device has to be banged on to see
1941 * Specifying an IRQ is done with the assumption that the user knows
1942 * what (s)he is doing. No checking is done!!!!
1949 dev->irq = smc911x_findirq(dev);
1952 /* kick the card and try again */
1956 if (dev->irq == 0) {
1957 printk("%s: Couldn't autodetect your IRQ. Use irq=xx.\n",
1962 dev->irq = irq_canonicalize(dev->irq);
1964 /* Fill in the fields of the device structure with ethernet values. */
1967 dev->netdev_ops = &smc911x_netdev_ops;
1968 dev->watchdog_timeo = msecs_to_jiffies(watchdog);
1969 dev->ethtool_ops = &smc911x_ethtool_ops;
1971 INIT_WORK(&lp->phy_configure, smc911x_phy_configure);
1972 lp->mii.phy_id_mask = 0x1f;
1973 lp->mii.reg_num_mask = 0x1f;
1974 lp->mii.force_media = 0;
1975 lp->mii.full_duplex = 0;
1977 lp->mii.mdio_read = smc911x_phy_read;
1978 lp->mii.mdio_write = smc911x_phy_write;
1981 * Locate the phy, if any.
1983 smc911x_phy_detect(dev);
1985 /* Set default parameters */
1986 lp->msg_enable = NETIF_MSG_LINK;
1987 lp->ctl_rfduplx = 0;
1988 lp->ctl_rspeed = 100;
1990 #ifdef SMC_DYNAMIC_BUS_CONFIG
1991 irq_flags = lp->cfg.irq_flags;
1993 irq_flags = IRQF_SHARED | SMC_IRQ_SENSE;
1997 retval = request_irq(dev->irq, smc911x_interrupt,
1998 irq_flags, dev->name, dev);
2003 lp->rxdma = SMC_DMA_REQUEST(dev, smc911x_rx_dma_irq);
2004 lp->txdma = SMC_DMA_REQUEST(dev, smc911x_tx_dma_irq);
2005 lp->rxdma_active = 0;
2006 lp->txdma_active = 0;
2007 dev->dma = lp->rxdma;
2010 retval = register_netdev(dev);
2012 /* now, print out the card info, in a short format.. */
2013 printk("%s: %s (rev %d) at %#lx IRQ %d",
2014 dev->name, version_string, lp->revision,
2015 dev->base_addr, dev->irq);
2018 if (lp->rxdma != -1)
2019 printk(" RXDMA %d ", lp->rxdma);
2021 if (lp->txdma != -1)
2022 printk("TXDMA %d", lp->txdma);
2025 if (!is_valid_ether_addr(dev->dev_addr)) {
2026 printk("%s: Invalid ethernet MAC address. Please "
2027 "set using ifconfig\n", dev->name);
2029 /* Print the Ethernet address */
2030 printk("%s: Ethernet addr: %pM\n",
2031 dev->name, dev->dev_addr);
2034 if (lp->phy_type == 0) {
2035 PRINTK("%s: No PHY found\n", dev->name);
2036 } else if ((lp->phy_type & ~0xff) == LAN911X_INTERNAL_PHY_ID) {
2037 PRINTK("%s: LAN911x Internal PHY\n", dev->name);
2039 PRINTK("%s: External PHY 0x%08x\n", dev->name, lp->phy_type);
2046 if (lp->rxdma != -1) {
2047 SMC_DMA_FREE(dev, lp->rxdma);
2049 if (lp->txdma != -1) {
2050 SMC_DMA_FREE(dev, lp->txdma);
2058 * smc911x_init(void)
2061 * 0 --> there is a device
2062 * anything else, error
2064 static int __devinit smc911x_drv_probe(struct platform_device *pdev)
2066 struct net_device *ndev;
2067 struct resource *res;
2068 struct smc911x_local *lp;
2072 DBG(SMC_DEBUG_FUNC, "--> %s\n", __func__);
2073 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2080 * Request the regions.
2082 if (!request_mem_region(res->start, SMC911X_IO_EXTENT, CARDNAME)) {
2087 ndev = alloc_etherdev(sizeof(struct smc911x_local));
2089 printk("%s: could not allocate device.\n", CARDNAME);
2093 SET_NETDEV_DEV(ndev, &pdev->dev);
2095 ndev->dma = (unsigned char)-1;
2096 ndev->irq = platform_get_irq(pdev, 0);
2097 lp = netdev_priv(ndev);
2099 #ifdef SMC_DYNAMIC_BUS_CONFIG
2101 struct smc911x_platdata *pd = pdev->dev.platform_data;
2106 memcpy(&lp->cfg, pd, sizeof(lp->cfg));
2110 addr = ioremap(res->start, SMC911X_IO_EXTENT);
2116 platform_set_drvdata(pdev, ndev);
2118 ndev->base_addr = res->start;
2119 ret = smc911x_probe(ndev);
2121 platform_set_drvdata(pdev, NULL);
2126 release_mem_region(res->start, SMC911X_IO_EXTENT);
2128 printk("%s: not found (%d).\n", CARDNAME, ret);
2132 lp->physaddr = res->start;
2133 lp->dev = &pdev->dev;
2140 static int __devexit smc911x_drv_remove(struct platform_device *pdev)
2142 struct net_device *ndev = platform_get_drvdata(pdev);
2143 struct smc911x_local *lp = netdev_priv(ndev);
2144 struct resource *res;
2146 DBG(SMC_DEBUG_FUNC, "--> %s\n", __func__);
2147 platform_set_drvdata(pdev, NULL);
2149 unregister_netdev(ndev);
2151 free_irq(ndev->irq, ndev);
2155 if (lp->rxdma != -1) {
2156 SMC_DMA_FREE(dev, lp->rxdma);
2158 if (lp->txdma != -1) {
2159 SMC_DMA_FREE(dev, lp->txdma);
2164 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2165 release_mem_region(res->start, SMC911X_IO_EXTENT);
2171 static int smc911x_drv_suspend(struct platform_device *dev, pm_message_t state)
2173 struct net_device *ndev = platform_get_drvdata(dev);
2174 struct smc911x_local *lp = netdev_priv(ndev);
2176 DBG(SMC_DEBUG_FUNC, "--> %s\n", __func__);
2178 if (netif_running(ndev)) {
2179 netif_device_detach(ndev);
2180 smc911x_shutdown(ndev);
2182 /* Set D2 - Energy detect only setting */
2183 SMC_SET_PMT_CTRL(lp, 2<<12);
2190 static int smc911x_drv_resume(struct platform_device *dev)
2192 struct net_device *ndev = platform_get_drvdata(dev);
2194 DBG(SMC_DEBUG_FUNC, "--> %s\n", __func__);
2196 struct smc911x_local *lp = netdev_priv(ndev);
2198 if (netif_running(ndev)) {
2199 smc911x_reset(ndev);
2200 if (lp->phy_type != 0)
2201 smc911x_phy_configure(&lp->phy_configure);
2202 smc911x_enable(ndev);
2203 netif_device_attach(ndev);
2209 static struct platform_driver smc911x_driver = {
2210 .probe = smc911x_drv_probe,
2211 .remove = __devexit_p(smc911x_drv_remove),
2212 .suspend = smc911x_drv_suspend,
2213 .resume = smc911x_drv_resume,
2216 .owner = THIS_MODULE,
2220 static int __init smc911x_init(void)
2222 return platform_driver_register(&smc911x_driver);
2225 static void __exit smc911x_cleanup(void)
2227 platform_driver_unregister(&smc911x_driver);
2230 module_init(smc911x_init);
2231 module_exit(smc911x_cleanup);