Commit | Line | Data |
---|---|---|
48257c4f PA |
1 | /* |
2 | * Combined Ethernet driver for Motorola MPC8xx and MPC82xx. | |
3 | * | |
9b8ee8e7 | 4 | * Copyright (c) 2003 Intracom S.A. |
48257c4f | 5 | * by Pantelis Antoniou <panto@intracom.gr> |
9b8ee8e7 VB |
6 | * |
7 | * 2005 (c) MontaVista Software, Inc. | |
48257c4f PA |
8 | * Vitaly Bordug <vbordug@ru.mvista.com> |
9 | * | |
10 | * Heavily based on original FEC driver by Dan Malek <dan@embeddededge.com> | |
11 | * and modifications by Joakim Tjernlund <joakim.tjernlund@lumentis.se> | |
12 | * | |
9b8ee8e7 VB |
13 | * This file is licensed under the terms of the GNU General Public License |
14 | * version 2. This program is licensed "as is" without any warranty of any | |
48257c4f PA |
15 | * kind, whether express or implied. |
16 | */ | |
17 | ||
48257c4f PA |
18 | #include <linux/module.h> |
19 | #include <linux/kernel.h> | |
20 | #include <linux/types.h> | |
48257c4f PA |
21 | #include <linux/string.h> |
22 | #include <linux/ptrace.h> | |
23 | #include <linux/errno.h> | |
24 | #include <linux/ioport.h> | |
25 | #include <linux/slab.h> | |
26 | #include <linux/interrupt.h> | |
48257c4f PA |
27 | #include <linux/init.h> |
28 | #include <linux/delay.h> | |
29 | #include <linux/netdevice.h> | |
30 | #include <linux/etherdevice.h> | |
31 | #include <linux/skbuff.h> | |
32 | #include <linux/spinlock.h> | |
33 | #include <linux/mii.h> | |
34 | #include <linux/ethtool.h> | |
35 | #include <linux/bitops.h> | |
36 | #include <linux/fs.h> | |
f7b99969 | 37 | #include <linux/platform_device.h> |
5b4b8454 | 38 | #include <linux/phy.h> |
aa73832c GL |
39 | #include <linux/of.h> |
40 | #include <linux/of_mdio.h> | |
b219108c | 41 | #include <linux/of_platform.h> |
8725f25a | 42 | #include <linux/of_gpio.h> |
48257c4f PA |
43 | |
44 | #include <linux/vmalloc.h> | |
48257c4f PA |
45 | #include <asm/pgtable.h> |
46 | #include <asm/irq.h> | |
47 | #include <asm/uaccess.h> | |
48 | ||
49 | #include "fs_enet.h" | |
50 | ||
51 | /*************************************************/ | |
52 | ||
48257c4f PA |
53 | MODULE_AUTHOR("Pantelis Antoniou <panto@intracom.gr>"); |
54 | MODULE_DESCRIPTION("Freescale Ethernet Driver"); | |
55 | MODULE_LICENSE("GPL"); | |
56 | MODULE_VERSION(DRV_MODULE_VERSION); | |
57 | ||
31a5bb04 | 58 | static int fs_enet_debug = -1; /* -1 == use FS_ENET_DEF_MSG_ENABLE as value */ |
8d3b33f6 | 59 | module_param(fs_enet_debug, int, 0); |
48257c4f PA |
60 | MODULE_PARM_DESC(fs_enet_debug, |
61 | "Freescale bitmapped debugging message enable value"); | |
62 | ||
9b8ee8e7 VB |
63 | #ifdef CONFIG_NET_POLL_CONTROLLER |
64 | static void fs_enet_netpoll(struct net_device *dev); | |
65 | #endif | |
48257c4f PA |
66 | |
67 | static void fs_set_multicast_list(struct net_device *dev) | |
68 | { | |
69 | struct fs_enet_private *fep = netdev_priv(dev); | |
70 | ||
71 | (*fep->ops->set_multicast_list)(dev); | |
72 | } | |
73 | ||
0d0d9c15 SW |
74 | static void skb_align(struct sk_buff *skb, int align) |
75 | { | |
76 | int off = ((unsigned long)skb->data) & (align - 1); | |
77 | ||
78 | if (off) | |
79 | skb_reserve(skb, align - off); | |
80 | } | |
81 | ||
48257c4f | 82 | /* NAPI receive function */ |
bea3348e | 83 | static int fs_enet_rx_napi(struct napi_struct *napi, int budget) |
48257c4f | 84 | { |
bea3348e | 85 | struct fs_enet_private *fep = container_of(napi, struct fs_enet_private, napi); |
f860f49e | 86 | struct net_device *dev = fep->ndev; |
48257c4f | 87 | const struct fs_platform_info *fpi = fep->fpi; |
31a5bb04 | 88 | cbd_t __iomem *bdp; |
48257c4f PA |
89 | struct sk_buff *skb, *skbn, *skbt; |
90 | int received = 0; | |
91 | u16 pkt_len, sc; | |
92 | int curidx; | |
48257c4f | 93 | |
48257c4f PA |
94 | /* |
95 | * First, grab all of the stats for the incoming packet. | |
96 | * These get messed up if we get called due to a busy condition. | |
97 | */ | |
98 | bdp = fep->cur_rx; | |
99 | ||
100 | /* clear RX status bits for napi*/ | |
101 | (*fep->ops->napi_clear_rx_event)(dev); | |
102 | ||
103 | while (((sc = CBDR_SC(bdp)) & BD_ENET_RX_EMPTY) == 0) { | |
48257c4f PA |
104 | curidx = bdp - fep->rx_bd_base; |
105 | ||
106 | /* | |
107 | * Since we have allocated space to hold a complete frame, | |
108 | * the last indicator should be set. | |
109 | */ | |
110 | if ((sc & BD_ENET_RX_LAST) == 0) | |
111 | printk(KERN_WARNING DRV_MODULE_NAME | |
112 | ": %s rcv is not +last\n", | |
113 | dev->name); | |
114 | ||
115 | /* | |
9b8ee8e7 | 116 | * Check for errors. |
48257c4f PA |
117 | */ |
118 | if (sc & (BD_ENET_RX_LG | BD_ENET_RX_SH | BD_ENET_RX_CL | | |
119 | BD_ENET_RX_NO | BD_ENET_RX_CR | BD_ENET_RX_OV)) { | |
120 | fep->stats.rx_errors++; | |
121 | /* Frame too long or too short. */ | |
122 | if (sc & (BD_ENET_RX_LG | BD_ENET_RX_SH)) | |
123 | fep->stats.rx_length_errors++; | |
124 | /* Frame alignment */ | |
125 | if (sc & (BD_ENET_RX_NO | BD_ENET_RX_CL)) | |
126 | fep->stats.rx_frame_errors++; | |
127 | /* CRC Error */ | |
128 | if (sc & BD_ENET_RX_CR) | |
129 | fep->stats.rx_crc_errors++; | |
130 | /* FIFO overrun */ | |
131 | if (sc & BD_ENET_RX_OV) | |
132 | fep->stats.rx_crc_errors++; | |
133 | ||
134 | skb = fep->rx_skbuff[curidx]; | |
135 | ||
34e30d61 | 136 | dma_unmap_single(fep->dev, CBDR_BUFADDR(bdp), |
48257c4f PA |
137 | L1_CACHE_ALIGN(PKT_MAXBUF_SIZE), |
138 | DMA_FROM_DEVICE); | |
139 | ||
140 | skbn = skb; | |
141 | ||
142 | } else { | |
48257c4f PA |
143 | skb = fep->rx_skbuff[curidx]; |
144 | ||
34e30d61 | 145 | dma_unmap_single(fep->dev, CBDR_BUFADDR(bdp), |
48257c4f PA |
146 | L1_CACHE_ALIGN(PKT_MAXBUF_SIZE), |
147 | DMA_FROM_DEVICE); | |
148 | ||
149 | /* | |
150 | * Process the incoming frame. | |
151 | */ | |
152 | fep->stats.rx_packets++; | |
153 | pkt_len = CBDR_DATLEN(bdp) - 4; /* remove CRC */ | |
154 | fep->stats.rx_bytes += pkt_len + 4; | |
155 | ||
156 | if (pkt_len <= fpi->rx_copybreak) { | |
157 | /* +2 to make IP header L1 cache aligned */ | |
158 | skbn = dev_alloc_skb(pkt_len + 2); | |
159 | if (skbn != NULL) { | |
160 | skb_reserve(skbn, 2); /* align IP header */ | |
d626f62b ACM |
161 | skb_copy_from_linear_data(skb, |
162 | skbn->data, pkt_len); | |
48257c4f PA |
163 | /* swap */ |
164 | skbt = skb; | |
165 | skb = skbn; | |
166 | skbn = skbt; | |
167 | } | |
0d0d9c15 | 168 | } else { |
48257c4f PA |
169 | skbn = dev_alloc_skb(ENET_RX_FRSIZE); |
170 | ||
0d0d9c15 SW |
171 | if (skbn) |
172 | skb_align(skbn, ENET_RX_ALIGN); | |
173 | } | |
174 | ||
48257c4f | 175 | if (skbn != NULL) { |
48257c4f PA |
176 | skb_put(skb, pkt_len); /* Make room */ |
177 | skb->protocol = eth_type_trans(skb, dev); | |
178 | received++; | |
179 | netif_receive_skb(skb); | |
180 | } else { | |
181 | printk(KERN_WARNING DRV_MODULE_NAME | |
182 | ": %s Memory squeeze, dropping packet.\n", | |
183 | dev->name); | |
184 | fep->stats.rx_dropped++; | |
185 | skbn = skb; | |
186 | } | |
187 | } | |
188 | ||
189 | fep->rx_skbuff[curidx] = skbn; | |
190 | CBDW_BUFADDR(bdp, dma_map_single(fep->dev, skbn->data, | |
191 | L1_CACHE_ALIGN(PKT_MAXBUF_SIZE), | |
192 | DMA_FROM_DEVICE)); | |
193 | CBDW_DATLEN(bdp, 0); | |
194 | CBDW_SC(bdp, (sc & ~BD_ENET_RX_STATS) | BD_ENET_RX_EMPTY); | |
195 | ||
196 | /* | |
9b8ee8e7 | 197 | * Update BD pointer to next entry. |
48257c4f PA |
198 | */ |
199 | if ((sc & BD_ENET_RX_WRAP) == 0) | |
200 | bdp++; | |
201 | else | |
202 | bdp = fep->rx_bd_base; | |
203 | ||
204 | (*fep->ops->rx_bd_done)(dev); | |
bea3348e SH |
205 | |
206 | if (received >= budget) | |
207 | break; | |
48257c4f PA |
208 | } |
209 | ||
210 | fep->cur_rx = bdp; | |
211 | ||
f860f49e | 212 | if (received < budget) { |
bea3348e | 213 | /* done */ |
288379f0 | 214 | napi_complete(napi); |
bea3348e SH |
215 | (*fep->ops->napi_enable_rx)(dev); |
216 | } | |
217 | return received; | |
48257c4f PA |
218 | } |
219 | ||
220 | /* non NAPI receive function */ | |
221 | static int fs_enet_rx_non_napi(struct net_device *dev) | |
222 | { | |
223 | struct fs_enet_private *fep = netdev_priv(dev); | |
224 | const struct fs_platform_info *fpi = fep->fpi; | |
31a5bb04 | 225 | cbd_t __iomem *bdp; |
48257c4f PA |
226 | struct sk_buff *skb, *skbn, *skbt; |
227 | int received = 0; | |
228 | u16 pkt_len, sc; | |
229 | int curidx; | |
230 | /* | |
231 | * First, grab all of the stats for the incoming packet. | |
232 | * These get messed up if we get called due to a busy condition. | |
233 | */ | |
234 | bdp = fep->cur_rx; | |
235 | ||
236 | while (((sc = CBDR_SC(bdp)) & BD_ENET_RX_EMPTY) == 0) { | |
237 | ||
238 | curidx = bdp - fep->rx_bd_base; | |
239 | ||
240 | /* | |
241 | * Since we have allocated space to hold a complete frame, | |
242 | * the last indicator should be set. | |
243 | */ | |
244 | if ((sc & BD_ENET_RX_LAST) == 0) | |
245 | printk(KERN_WARNING DRV_MODULE_NAME | |
246 | ": %s rcv is not +last\n", | |
247 | dev->name); | |
248 | ||
249 | /* | |
9b8ee8e7 | 250 | * Check for errors. |
48257c4f PA |
251 | */ |
252 | if (sc & (BD_ENET_RX_LG | BD_ENET_RX_SH | BD_ENET_RX_CL | | |
253 | BD_ENET_RX_NO | BD_ENET_RX_CR | BD_ENET_RX_OV)) { | |
254 | fep->stats.rx_errors++; | |
255 | /* Frame too long or too short. */ | |
256 | if (sc & (BD_ENET_RX_LG | BD_ENET_RX_SH)) | |
257 | fep->stats.rx_length_errors++; | |
258 | /* Frame alignment */ | |
259 | if (sc & (BD_ENET_RX_NO | BD_ENET_RX_CL)) | |
260 | fep->stats.rx_frame_errors++; | |
261 | /* CRC Error */ | |
262 | if (sc & BD_ENET_RX_CR) | |
263 | fep->stats.rx_crc_errors++; | |
264 | /* FIFO overrun */ | |
265 | if (sc & BD_ENET_RX_OV) | |
266 | fep->stats.rx_crc_errors++; | |
267 | ||
268 | skb = fep->rx_skbuff[curidx]; | |
269 | ||
34e30d61 | 270 | dma_unmap_single(fep->dev, CBDR_BUFADDR(bdp), |
48257c4f PA |
271 | L1_CACHE_ALIGN(PKT_MAXBUF_SIZE), |
272 | DMA_FROM_DEVICE); | |
273 | ||
274 | skbn = skb; | |
275 | ||
276 | } else { | |
277 | ||
278 | skb = fep->rx_skbuff[curidx]; | |
279 | ||
34e30d61 | 280 | dma_unmap_single(fep->dev, CBDR_BUFADDR(bdp), |
48257c4f PA |
281 | L1_CACHE_ALIGN(PKT_MAXBUF_SIZE), |
282 | DMA_FROM_DEVICE); | |
283 | ||
284 | /* | |
285 | * Process the incoming frame. | |
286 | */ | |
287 | fep->stats.rx_packets++; | |
288 | pkt_len = CBDR_DATLEN(bdp) - 4; /* remove CRC */ | |
289 | fep->stats.rx_bytes += pkt_len + 4; | |
290 | ||
291 | if (pkt_len <= fpi->rx_copybreak) { | |
292 | /* +2 to make IP header L1 cache aligned */ | |
293 | skbn = dev_alloc_skb(pkt_len + 2); | |
294 | if (skbn != NULL) { | |
295 | skb_reserve(skbn, 2); /* align IP header */ | |
d626f62b ACM |
296 | skb_copy_from_linear_data(skb, |
297 | skbn->data, pkt_len); | |
48257c4f PA |
298 | /* swap */ |
299 | skbt = skb; | |
300 | skb = skbn; | |
301 | skbn = skbt; | |
302 | } | |
0d0d9c15 | 303 | } else { |
48257c4f PA |
304 | skbn = dev_alloc_skb(ENET_RX_FRSIZE); |
305 | ||
0d0d9c15 SW |
306 | if (skbn) |
307 | skb_align(skbn, ENET_RX_ALIGN); | |
308 | } | |
309 | ||
48257c4f | 310 | if (skbn != NULL) { |
48257c4f PA |
311 | skb_put(skb, pkt_len); /* Make room */ |
312 | skb->protocol = eth_type_trans(skb, dev); | |
313 | received++; | |
314 | netif_rx(skb); | |
315 | } else { | |
316 | printk(KERN_WARNING DRV_MODULE_NAME | |
317 | ": %s Memory squeeze, dropping packet.\n", | |
318 | dev->name); | |
319 | fep->stats.rx_dropped++; | |
320 | skbn = skb; | |
321 | } | |
322 | } | |
323 | ||
324 | fep->rx_skbuff[curidx] = skbn; | |
325 | CBDW_BUFADDR(bdp, dma_map_single(fep->dev, skbn->data, | |
326 | L1_CACHE_ALIGN(PKT_MAXBUF_SIZE), | |
327 | DMA_FROM_DEVICE)); | |
328 | CBDW_DATLEN(bdp, 0); | |
329 | CBDW_SC(bdp, (sc & ~BD_ENET_RX_STATS) | BD_ENET_RX_EMPTY); | |
330 | ||
331 | /* | |
9b8ee8e7 | 332 | * Update BD pointer to next entry. |
48257c4f PA |
333 | */ |
334 | if ((sc & BD_ENET_RX_WRAP) == 0) | |
335 | bdp++; | |
336 | else | |
337 | bdp = fep->rx_bd_base; | |
338 | ||
339 | (*fep->ops->rx_bd_done)(dev); | |
340 | } | |
341 | ||
342 | fep->cur_rx = bdp; | |
343 | ||
344 | return 0; | |
345 | } | |
346 | ||
347 | static void fs_enet_tx(struct net_device *dev) | |
348 | { | |
349 | struct fs_enet_private *fep = netdev_priv(dev); | |
31a5bb04 | 350 | cbd_t __iomem *bdp; |
48257c4f PA |
351 | struct sk_buff *skb; |
352 | int dirtyidx, do_wake, do_restart; | |
353 | u16 sc; | |
354 | ||
aa90f503 | 355 | spin_lock(&fep->tx_lock); |
48257c4f PA |
356 | bdp = fep->dirty_tx; |
357 | ||
358 | do_wake = do_restart = 0; | |
359 | while (((sc = CBDR_SC(bdp)) & BD_ENET_TX_READY) == 0) { | |
48257c4f PA |
360 | dirtyidx = bdp - fep->tx_bd_base; |
361 | ||
362 | if (fep->tx_free == fep->tx_ring) | |
363 | break; | |
364 | ||
365 | skb = fep->tx_skbuff[dirtyidx]; | |
366 | ||
367 | /* | |
9b8ee8e7 | 368 | * Check for errors. |
48257c4f PA |
369 | */ |
370 | if (sc & (BD_ENET_TX_HB | BD_ENET_TX_LC | | |
371 | BD_ENET_TX_RL | BD_ENET_TX_UN | BD_ENET_TX_CSL)) { | |
372 | ||
373 | if (sc & BD_ENET_TX_HB) /* No heartbeat */ | |
374 | fep->stats.tx_heartbeat_errors++; | |
375 | if (sc & BD_ENET_TX_LC) /* Late collision */ | |
376 | fep->stats.tx_window_errors++; | |
377 | if (sc & BD_ENET_TX_RL) /* Retrans limit */ | |
378 | fep->stats.tx_aborted_errors++; | |
379 | if (sc & BD_ENET_TX_UN) /* Underrun */ | |
380 | fep->stats.tx_fifo_errors++; | |
381 | if (sc & BD_ENET_TX_CSL) /* Carrier lost */ | |
382 | fep->stats.tx_carrier_errors++; | |
383 | ||
384 | if (sc & (BD_ENET_TX_LC | BD_ENET_TX_RL | BD_ENET_TX_UN)) { | |
385 | fep->stats.tx_errors++; | |
386 | do_restart = 1; | |
387 | } | |
388 | } else | |
389 | fep->stats.tx_packets++; | |
390 | ||
391 | if (sc & BD_ENET_TX_READY) | |
392 | printk(KERN_WARNING DRV_MODULE_NAME | |
393 | ": %s HEY! Enet xmit interrupt and TX_READY.\n", | |
394 | dev->name); | |
395 | ||
396 | /* | |
397 | * Deferred means some collisions occurred during transmit, | |
398 | * but we eventually sent the packet OK. | |
399 | */ | |
400 | if (sc & BD_ENET_TX_DEF) | |
401 | fep->stats.collisions++; | |
402 | ||
403 | /* unmap */ | |
34e30d61 PA |
404 | dma_unmap_single(fep->dev, CBDR_BUFADDR(bdp), |
405 | skb->len, DMA_TO_DEVICE); | |
48257c4f PA |
406 | |
407 | /* | |
9b8ee8e7 | 408 | * Free the sk buffer associated with this last transmit. |
48257c4f PA |
409 | */ |
410 | dev_kfree_skb_irq(skb); | |
411 | fep->tx_skbuff[dirtyidx] = NULL; | |
412 | ||
413 | /* | |
9b8ee8e7 | 414 | * Update pointer to next buffer descriptor to be transmitted. |
48257c4f PA |
415 | */ |
416 | if ((sc & BD_ENET_TX_WRAP) == 0) | |
417 | bdp++; | |
418 | else | |
419 | bdp = fep->tx_bd_base; | |
420 | ||
421 | /* | |
422 | * Since we have freed up a buffer, the ring is no longer | |
423 | * full. | |
424 | */ | |
425 | if (!fep->tx_free++) | |
426 | do_wake = 1; | |
427 | } | |
428 | ||
429 | fep->dirty_tx = bdp; | |
430 | ||
431 | if (do_restart) | |
432 | (*fep->ops->tx_restart)(dev); | |
433 | ||
aa90f503 | 434 | spin_unlock(&fep->tx_lock); |
48257c4f PA |
435 | |
436 | if (do_wake) | |
437 | netif_wake_queue(dev); | |
438 | } | |
439 | ||
440 | /* | |
441 | * The interrupt handler. | |
442 | * This is called from the MPC core interrupt. | |
443 | */ | |
444 | static irqreturn_t | |
7d12e780 | 445 | fs_enet_interrupt(int irq, void *dev_id) |
48257c4f PA |
446 | { |
447 | struct net_device *dev = dev_id; | |
448 | struct fs_enet_private *fep; | |
449 | const struct fs_platform_info *fpi; | |
450 | u32 int_events; | |
451 | u32 int_clr_events; | |
452 | int nr, napi_ok; | |
453 | int handled; | |
454 | ||
455 | fep = netdev_priv(dev); | |
456 | fpi = fep->fpi; | |
457 | ||
458 | nr = 0; | |
459 | while ((int_events = (*fep->ops->get_int_events)(dev)) != 0) { | |
48257c4f PA |
460 | nr++; |
461 | ||
462 | int_clr_events = int_events; | |
463 | if (fpi->use_napi) | |
464 | int_clr_events &= ~fep->ev_napi_rx; | |
465 | ||
466 | (*fep->ops->clear_int_events)(dev, int_clr_events); | |
467 | ||
468 | if (int_events & fep->ev_err) | |
469 | (*fep->ops->ev_error)(dev, int_events); | |
470 | ||
471 | if (int_events & fep->ev_rx) { | |
472 | if (!fpi->use_napi) | |
473 | fs_enet_rx_non_napi(dev); | |
474 | else { | |
bea3348e | 475 | napi_ok = napi_schedule_prep(&fep->napi); |
48257c4f PA |
476 | |
477 | (*fep->ops->napi_disable_rx)(dev); | |
478 | (*fep->ops->clear_int_events)(dev, fep->ev_napi_rx); | |
479 | ||
480 | /* NOTE: it is possible for FCCs in NAPI mode */ | |
481 | /* to submit a spurious interrupt while in poll */ | |
482 | if (napi_ok) | |
288379f0 | 483 | __napi_schedule(&fep->napi); |
48257c4f PA |
484 | } |
485 | } | |
486 | ||
487 | if (int_events & fep->ev_tx) | |
488 | fs_enet_tx(dev); | |
489 | } | |
490 | ||
491 | handled = nr > 0; | |
492 | return IRQ_RETVAL(handled); | |
493 | } | |
494 | ||
495 | void fs_init_bds(struct net_device *dev) | |
496 | { | |
497 | struct fs_enet_private *fep = netdev_priv(dev); | |
31a5bb04 | 498 | cbd_t __iomem *bdp; |
48257c4f PA |
499 | struct sk_buff *skb; |
500 | int i; | |
501 | ||
502 | fs_cleanup_bds(dev); | |
503 | ||
504 | fep->dirty_tx = fep->cur_tx = fep->tx_bd_base; | |
505 | fep->tx_free = fep->tx_ring; | |
506 | fep->cur_rx = fep->rx_bd_base; | |
507 | ||
508 | /* | |
9b8ee8e7 | 509 | * Initialize the receive buffer descriptors. |
48257c4f PA |
510 | */ |
511 | for (i = 0, bdp = fep->rx_bd_base; i < fep->rx_ring; i++, bdp++) { | |
512 | skb = dev_alloc_skb(ENET_RX_FRSIZE); | |
513 | if (skb == NULL) { | |
514 | printk(KERN_WARNING DRV_MODULE_NAME | |
515 | ": %s Memory squeeze, unable to allocate skb\n", | |
516 | dev->name); | |
517 | break; | |
518 | } | |
0d0d9c15 | 519 | skb_align(skb, ENET_RX_ALIGN); |
48257c4f | 520 | fep->rx_skbuff[i] = skb; |
48257c4f PA |
521 | CBDW_BUFADDR(bdp, |
522 | dma_map_single(fep->dev, skb->data, | |
523 | L1_CACHE_ALIGN(PKT_MAXBUF_SIZE), | |
524 | DMA_FROM_DEVICE)); | |
525 | CBDW_DATLEN(bdp, 0); /* zero */ | |
526 | CBDW_SC(bdp, BD_ENET_RX_EMPTY | | |
527 | ((i < fep->rx_ring - 1) ? 0 : BD_SC_WRAP)); | |
528 | } | |
529 | /* | |
9b8ee8e7 | 530 | * if we failed, fillup remainder |
48257c4f PA |
531 | */ |
532 | for (; i < fep->rx_ring; i++, bdp++) { | |
533 | fep->rx_skbuff[i] = NULL; | |
534 | CBDW_SC(bdp, (i < fep->rx_ring - 1) ? 0 : BD_SC_WRAP); | |
535 | } | |
536 | ||
537 | /* | |
9b8ee8e7 | 538 | * ...and the same for transmit. |
48257c4f PA |
539 | */ |
540 | for (i = 0, bdp = fep->tx_bd_base; i < fep->tx_ring; i++, bdp++) { | |
541 | fep->tx_skbuff[i] = NULL; | |
542 | CBDW_BUFADDR(bdp, 0); | |
543 | CBDW_DATLEN(bdp, 0); | |
544 | CBDW_SC(bdp, (i < fep->tx_ring - 1) ? 0 : BD_SC_WRAP); | |
545 | } | |
546 | } | |
547 | ||
548 | void fs_cleanup_bds(struct net_device *dev) | |
549 | { | |
550 | struct fs_enet_private *fep = netdev_priv(dev); | |
551 | struct sk_buff *skb; | |
31a5bb04 | 552 | cbd_t __iomem *bdp; |
48257c4f PA |
553 | int i; |
554 | ||
555 | /* | |
9b8ee8e7 | 556 | * Reset SKB transmit buffers. |
48257c4f | 557 | */ |
34e30d61 | 558 | for (i = 0, bdp = fep->tx_bd_base; i < fep->tx_ring; i++, bdp++) { |
48257c4f PA |
559 | if ((skb = fep->tx_skbuff[i]) == NULL) |
560 | continue; | |
561 | ||
562 | /* unmap */ | |
34e30d61 PA |
563 | dma_unmap_single(fep->dev, CBDR_BUFADDR(bdp), |
564 | skb->len, DMA_TO_DEVICE); | |
48257c4f PA |
565 | |
566 | fep->tx_skbuff[i] = NULL; | |
567 | dev_kfree_skb(skb); | |
568 | } | |
569 | ||
570 | /* | |
9b8ee8e7 | 571 | * Reset SKB receive buffers |
48257c4f | 572 | */ |
34e30d61 | 573 | for (i = 0, bdp = fep->rx_bd_base; i < fep->rx_ring; i++, bdp++) { |
48257c4f PA |
574 | if ((skb = fep->rx_skbuff[i]) == NULL) |
575 | continue; | |
576 | ||
577 | /* unmap */ | |
34e30d61 | 578 | dma_unmap_single(fep->dev, CBDR_BUFADDR(bdp), |
48257c4f PA |
579 | L1_CACHE_ALIGN(PKT_MAXBUF_SIZE), |
580 | DMA_FROM_DEVICE); | |
581 | ||
582 | fep->rx_skbuff[i] = NULL; | |
583 | ||
584 | dev_kfree_skb(skb); | |
585 | } | |
586 | } | |
587 | ||
588 | /**********************************************************************************/ | |
589 | ||
590 | static int fs_enet_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
591 | { | |
592 | struct fs_enet_private *fep = netdev_priv(dev); | |
31a5bb04 | 593 | cbd_t __iomem *bdp; |
48257c4f PA |
594 | int curidx; |
595 | u16 sc; | |
596 | unsigned long flags; | |
597 | ||
598 | spin_lock_irqsave(&fep->tx_lock, flags); | |
599 | ||
600 | /* | |
9b8ee8e7 | 601 | * Fill in a Tx ring entry |
48257c4f PA |
602 | */ |
603 | bdp = fep->cur_tx; | |
604 | ||
605 | if (!fep->tx_free || (CBDR_SC(bdp) & BD_ENET_TX_READY)) { | |
606 | netif_stop_queue(dev); | |
607 | spin_unlock_irqrestore(&fep->tx_lock, flags); | |
608 | ||
609 | /* | |
610 | * Ooops. All transmit buffers are full. Bail out. | |
611 | * This should not happen, since the tx queue should be stopped. | |
612 | */ | |
613 | printk(KERN_WARNING DRV_MODULE_NAME | |
614 | ": %s tx queue full!.\n", dev->name); | |
615 | return NETDEV_TX_BUSY; | |
616 | } | |
617 | ||
618 | curidx = bdp - fep->tx_bd_base; | |
619 | /* | |
9b8ee8e7 | 620 | * Clear all of the status flags. |
48257c4f PA |
621 | */ |
622 | CBDC_SC(bdp, BD_ENET_TX_STATS); | |
623 | ||
624 | /* | |
9b8ee8e7 | 625 | * Save skb pointer. |
48257c4f PA |
626 | */ |
627 | fep->tx_skbuff[curidx] = skb; | |
628 | ||
629 | fep->stats.tx_bytes += skb->len; | |
630 | ||
631 | /* | |
9b8ee8e7 | 632 | * Push the data cache so the CPM does not get stale memory data. |
48257c4f PA |
633 | */ |
634 | CBDW_BUFADDR(bdp, dma_map_single(fep->dev, | |
635 | skb->data, skb->len, DMA_TO_DEVICE)); | |
636 | CBDW_DATLEN(bdp, skb->len); | |
637 | ||
638 | dev->trans_start = jiffies; | |
639 | ||
640 | /* | |
9b8ee8e7 | 641 | * If this was the last BD in the ring, start at the beginning again. |
48257c4f PA |
642 | */ |
643 | if ((CBDR_SC(bdp) & BD_ENET_TX_WRAP) == 0) | |
644 | fep->cur_tx++; | |
645 | else | |
646 | fep->cur_tx = fep->tx_bd_base; | |
647 | ||
648 | if (!--fep->tx_free) | |
649 | netif_stop_queue(dev); | |
650 | ||
651 | /* Trigger transmission start */ | |
652 | sc = BD_ENET_TX_READY | BD_ENET_TX_INTR | | |
653 | BD_ENET_TX_LAST | BD_ENET_TX_TC; | |
654 | ||
655 | /* note that while FEC does not have this bit | |
656 | * it marks it as available for software use | |
657 | * yay for hw reuse :) */ | |
658 | if (skb->len <= 60) | |
659 | sc |= BD_ENET_TX_PAD; | |
660 | CBDS_SC(bdp, sc); | |
661 | ||
662 | (*fep->ops->tx_kickstart)(dev); | |
663 | ||
664 | spin_unlock_irqrestore(&fep->tx_lock, flags); | |
665 | ||
666 | return NETDEV_TX_OK; | |
667 | } | |
668 | ||
48257c4f PA |
669 | static void fs_timeout(struct net_device *dev) |
670 | { | |
671 | struct fs_enet_private *fep = netdev_priv(dev); | |
672 | unsigned long flags; | |
673 | int wake = 0; | |
674 | ||
675 | fep->stats.tx_errors++; | |
676 | ||
677 | spin_lock_irqsave(&fep->lock, flags); | |
678 | ||
679 | if (dev->flags & IFF_UP) { | |
5b4b8454 | 680 | phy_stop(fep->phydev); |
48257c4f PA |
681 | (*fep->ops->stop)(dev); |
682 | (*fep->ops->restart)(dev); | |
5b4b8454 | 683 | phy_start(fep->phydev); |
48257c4f PA |
684 | } |
685 | ||
5b4b8454 | 686 | phy_start(fep->phydev); |
48257c4f PA |
687 | wake = fep->tx_free && !(CBDR_SC(fep->cur_tx) & BD_ENET_TX_READY); |
688 | spin_unlock_irqrestore(&fep->lock, flags); | |
689 | ||
690 | if (wake) | |
691 | netif_wake_queue(dev); | |
692 | } | |
693 | ||
5b4b8454 VB |
694 | /*----------------------------------------------------------------------------- |
695 | * generic link-change handler - should be sufficient for most cases | |
696 | *-----------------------------------------------------------------------------*/ | |
697 | static void generic_adjust_link(struct net_device *dev) | |
698 | { | |
0fb300fa SW |
699 | struct fs_enet_private *fep = netdev_priv(dev); |
700 | struct phy_device *phydev = fep->phydev; | |
701 | int new_state = 0; | |
702 | ||
703 | if (phydev->link) { | |
704 | /* adjust to duplex mode */ | |
705 | if (phydev->duplex != fep->oldduplex) { | |
706 | new_state = 1; | |
707 | fep->oldduplex = phydev->duplex; | |
708 | } | |
709 | ||
710 | if (phydev->speed != fep->oldspeed) { | |
711 | new_state = 1; | |
712 | fep->oldspeed = phydev->speed; | |
713 | } | |
714 | ||
715 | if (!fep->oldlink) { | |
716 | new_state = 1; | |
717 | fep->oldlink = 1; | |
0fb300fa SW |
718 | } |
719 | ||
720 | if (new_state) | |
721 | fep->ops->restart(dev); | |
722 | } else if (fep->oldlink) { | |
723 | new_state = 1; | |
724 | fep->oldlink = 0; | |
725 | fep->oldspeed = 0; | |
726 | fep->oldduplex = -1; | |
0fb300fa SW |
727 | } |
728 | ||
729 | if (new_state && netif_msg_link(fep)) | |
730 | phy_print_status(phydev); | |
5b4b8454 VB |
731 | } |
732 | ||
733 | ||
734 | static void fs_adjust_link(struct net_device *dev) | |
735 | { | |
736 | struct fs_enet_private *fep = netdev_priv(dev); | |
737 | unsigned long flags; | |
738 | ||
739 | spin_lock_irqsave(&fep->lock, flags); | |
740 | ||
741 | if(fep->ops->adjust_link) | |
742 | fep->ops->adjust_link(dev); | |
743 | else | |
744 | generic_adjust_link(dev); | |
745 | ||
746 | spin_unlock_irqrestore(&fep->lock, flags); | |
747 | } | |
748 | ||
749 | static int fs_init_phy(struct net_device *dev) | |
750 | { | |
751 | struct fs_enet_private *fep = netdev_priv(dev); | |
752 | struct phy_device *phydev; | |
753 | ||
754 | fep->oldlink = 0; | |
755 | fep->oldspeed = 0; | |
756 | fep->oldduplex = -1; | |
aa73832c GL |
757 | if(fep->fpi->phy_node) |
758 | phydev = of_phy_connect(dev, fep->fpi->phy_node, | |
759 | &fs_adjust_link, 0, | |
760 | PHY_INTERFACE_MODE_MII); | |
5b4b8454 VB |
761 | else { |
762 | printk("No phy bus ID specified in BSP code\n"); | |
763 | return -EINVAL; | |
764 | } | |
765 | if (IS_ERR(phydev)) { | |
766 | printk(KERN_ERR "%s: Could not attach to PHY\n", dev->name); | |
767 | return PTR_ERR(phydev); | |
768 | } | |
769 | ||
770 | fep->phydev = phydev; | |
771 | ||
772 | return 0; | |
773 | } | |
774 | ||
48257c4f PA |
775 | static int fs_enet_open(struct net_device *dev) |
776 | { | |
777 | struct fs_enet_private *fep = netdev_priv(dev); | |
48257c4f | 778 | int r; |
5b4b8454 | 779 | int err; |
48257c4f | 780 | |
f4f62301 HS |
781 | /* to initialize the fep->cur_rx,... */ |
782 | /* not doing this, will cause a crash in fs_enet_rx_napi */ | |
783 | fs_init_bds(fep->ndev); | |
784 | ||
f860f49e SW |
785 | if (fep->fpi->use_napi) |
786 | napi_enable(&fep->napi); | |
bea3348e | 787 | |
48257c4f | 788 | /* Install our interrupt handler. */ |
31578140 KG |
789 | r = request_irq(fep->interrupt, fs_enet_interrupt, IRQF_SHARED, |
790 | "fs_enet-mac", dev); | |
48257c4f PA |
791 | if (r != 0) { |
792 | printk(KERN_ERR DRV_MODULE_NAME | |
5b4b8454 | 793 | ": %s Could not allocate FS_ENET IRQ!", dev->name); |
f860f49e SW |
794 | if (fep->fpi->use_napi) |
795 | napi_disable(&fep->napi); | |
48257c4f PA |
796 | return -EINVAL; |
797 | } | |
798 | ||
5b4b8454 | 799 | err = fs_init_phy(dev); |
f860f49e | 800 | if (err) { |
d7e094d4 | 801 | free_irq(fep->interrupt, dev); |
f860f49e SW |
802 | if (fep->fpi->use_napi) |
803 | napi_disable(&fep->napi); | |
5b4b8454 | 804 | return err; |
bea3348e | 805 | } |
5b4b8454 | 806 | phy_start(fep->phydev); |
48257c4f | 807 | |
c8f15686 AV |
808 | netif_start_queue(dev); |
809 | ||
48257c4f PA |
810 | return 0; |
811 | } | |
812 | ||
813 | static int fs_enet_close(struct net_device *dev) | |
814 | { | |
815 | struct fs_enet_private *fep = netdev_priv(dev); | |
48257c4f PA |
816 | unsigned long flags; |
817 | ||
818 | netif_stop_queue(dev); | |
819 | netif_carrier_off(dev); | |
9a3c243d LP |
820 | if (fep->fpi->use_napi) |
821 | napi_disable(&fep->napi); | |
5b4b8454 | 822 | phy_stop(fep->phydev); |
48257c4f PA |
823 | |
824 | spin_lock_irqsave(&fep->lock, flags); | |
aa90f503 | 825 | spin_lock(&fep->tx_lock); |
48257c4f | 826 | (*fep->ops->stop)(dev); |
aa90f503 | 827 | spin_unlock(&fep->tx_lock); |
48257c4f PA |
828 | spin_unlock_irqrestore(&fep->lock, flags); |
829 | ||
830 | /* release any irqs */ | |
5b4b8454 VB |
831 | phy_disconnect(fep->phydev); |
832 | fep->phydev = NULL; | |
31578140 | 833 | free_irq(fep->interrupt, dev); |
48257c4f PA |
834 | |
835 | return 0; | |
836 | } | |
837 | ||
838 | static struct net_device_stats *fs_enet_get_stats(struct net_device *dev) | |
839 | { | |
840 | struct fs_enet_private *fep = netdev_priv(dev); | |
841 | return &fep->stats; | |
842 | } | |
843 | ||
844 | /*************************************************************************/ | |
845 | ||
846 | static void fs_get_drvinfo(struct net_device *dev, | |
847 | struct ethtool_drvinfo *info) | |
848 | { | |
849 | strcpy(info->driver, DRV_MODULE_NAME); | |
850 | strcpy(info->version, DRV_MODULE_VERSION); | |
851 | } | |
852 | ||
853 | static int fs_get_regs_len(struct net_device *dev) | |
854 | { | |
855 | struct fs_enet_private *fep = netdev_priv(dev); | |
856 | ||
857 | return (*fep->ops->get_regs_len)(dev); | |
858 | } | |
859 | ||
860 | static void fs_get_regs(struct net_device *dev, struct ethtool_regs *regs, | |
861 | void *p) | |
862 | { | |
863 | struct fs_enet_private *fep = netdev_priv(dev); | |
864 | unsigned long flags; | |
865 | int r, len; | |
866 | ||
867 | len = regs->len; | |
868 | ||
869 | spin_lock_irqsave(&fep->lock, flags); | |
870 | r = (*fep->ops->get_regs)(dev, p, &len); | |
871 | spin_unlock_irqrestore(&fep->lock, flags); | |
872 | ||
873 | if (r == 0) | |
874 | regs->version = 0; | |
875 | } | |
876 | ||
877 | static int fs_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
878 | { | |
879 | struct fs_enet_private *fep = netdev_priv(dev); | |
dfd9a421 AV |
880 | |
881 | if (!fep->phydev) | |
882 | return -ENODEV; | |
883 | ||
5b4b8454 | 884 | return phy_ethtool_gset(fep->phydev, cmd); |
48257c4f PA |
885 | } |
886 | ||
887 | static int fs_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
888 | { | |
889 | struct fs_enet_private *fep = netdev_priv(dev); | |
dfd9a421 AV |
890 | |
891 | if (!fep->phydev) | |
892 | return -ENODEV; | |
893 | ||
894 | return phy_ethtool_sset(fep->phydev, cmd); | |
48257c4f PA |
895 | } |
896 | ||
897 | static int fs_nway_reset(struct net_device *dev) | |
898 | { | |
5b4b8454 | 899 | return 0; |
48257c4f PA |
900 | } |
901 | ||
902 | static u32 fs_get_msglevel(struct net_device *dev) | |
903 | { | |
904 | struct fs_enet_private *fep = netdev_priv(dev); | |
905 | return fep->msg_enable; | |
906 | } | |
907 | ||
908 | static void fs_set_msglevel(struct net_device *dev, u32 value) | |
909 | { | |
910 | struct fs_enet_private *fep = netdev_priv(dev); | |
911 | fep->msg_enable = value; | |
912 | } | |
913 | ||
7282d491 | 914 | static const struct ethtool_ops fs_ethtool_ops = { |
48257c4f PA |
915 | .get_drvinfo = fs_get_drvinfo, |
916 | .get_regs_len = fs_get_regs_len, | |
917 | .get_settings = fs_get_settings, | |
918 | .set_settings = fs_set_settings, | |
919 | .nway_reset = fs_nway_reset, | |
920 | .get_link = ethtool_op_get_link, | |
921 | .get_msglevel = fs_get_msglevel, | |
922 | .set_msglevel = fs_set_msglevel, | |
48257c4f | 923 | .set_tx_csum = ethtool_op_set_tx_csum, /* local! */ |
48257c4f PA |
924 | .set_sg = ethtool_op_set_sg, |
925 | .get_regs = fs_get_regs, | |
926 | }; | |
927 | ||
928 | static int fs_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) | |
929 | { | |
930 | struct fs_enet_private *fep = netdev_priv(dev); | |
931 | struct mii_ioctl_data *mii = (struct mii_ioctl_data *)&rq->ifr_data; | |
48257c4f PA |
932 | |
933 | if (!netif_running(dev)) | |
934 | return -EINVAL; | |
935 | ||
5bd3670f | 936 | return phy_mii_ioctl(fep->phydev, mii, cmd); |
48257c4f PA |
937 | } |
938 | ||
939 | extern int fs_mii_connect(struct net_device *dev); | |
940 | extern void fs_mii_disconnect(struct net_device *dev); | |
941 | ||
48257c4f PA |
942 | /**************************************************************************************/ |
943 | ||
976de6a8 SW |
944 | #ifdef CONFIG_FS_ENET_HAS_FEC |
945 | #define IS_FEC(match) ((match)->data == &fs_fec_ops) | |
946 | #else | |
947 | #define IS_FEC(match) 0 | |
948 | #endif | |
949 | ||
8c02acd7 AB |
950 | static const struct net_device_ops fs_enet_netdev_ops = { |
951 | .ndo_open = fs_enet_open, | |
952 | .ndo_stop = fs_enet_close, | |
953 | .ndo_get_stats = fs_enet_get_stats, | |
954 | .ndo_start_xmit = fs_enet_start_xmit, | |
955 | .ndo_tx_timeout = fs_timeout, | |
956 | .ndo_set_multicast_list = fs_set_multicast_list, | |
957 | .ndo_do_ioctl = fs_ioctl, | |
958 | .ndo_validate_addr = eth_validate_addr, | |
959 | .ndo_set_mac_address = eth_mac_addr, | |
960 | .ndo_change_mtu = eth_change_mtu, | |
961 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
962 | .ndo_poll_controller = fs_enet_netpoll, | |
963 | #endif | |
964 | }; | |
965 | ||
976de6a8 SW |
966 | static int __devinit fs_enet_probe(struct of_device *ofdev, |
967 | const struct of_device_id *match) | |
968 | { | |
969 | struct net_device *ndev; | |
970 | struct fs_enet_private *fep; | |
971 | struct fs_platform_info *fpi; | |
972 | const u32 *data; | |
973 | const u8 *mac_addr; | |
974 | int privsize, len, ret = -ENODEV; | |
975 | ||
976 | fpi = kzalloc(sizeof(*fpi), GFP_KERNEL); | |
977 | if (!fpi) | |
978 | return -ENOMEM; | |
979 | ||
980 | if (!IS_FEC(match)) { | |
981 | data = of_get_property(ofdev->node, "fsl,cpm-command", &len); | |
982 | if (!data || len != 4) | |
983 | goto out_free_fpi; | |
984 | ||
985 | fpi->cp_command = *data; | |
986 | } | |
987 | ||
988 | fpi->rx_ring = 32; | |
989 | fpi->tx_ring = 32; | |
990 | fpi->rx_copybreak = 240; | |
f860f49e | 991 | fpi->use_napi = 1; |
976de6a8 | 992 | fpi->napi_weight = 17; |
aa73832c GL |
993 | fpi->phy_node = of_parse_phandle(ofdev->node, "phy-handle", 0); |
994 | if ((!fpi->phy_node) && (!of_get_property(ofdev->node, "fixed-link", | |
995 | NULL))) | |
976de6a8 SW |
996 | goto out_free_fpi; |
997 | ||
998 | privsize = sizeof(*fep) + | |
999 | sizeof(struct sk_buff **) * | |
1000 | (fpi->rx_ring + fpi->tx_ring); | |
1001 | ||
1002 | ndev = alloc_etherdev(privsize); | |
1003 | if (!ndev) { | |
1004 | ret = -ENOMEM; | |
1005 | goto out_free_fpi; | |
1006 | } | |
1007 | ||
976de6a8 SW |
1008 | dev_set_drvdata(&ofdev->dev, ndev); |
1009 | ||
1010 | fep = netdev_priv(ndev); | |
1011 | fep->dev = &ofdev->dev; | |
f860f49e | 1012 | fep->ndev = ndev; |
976de6a8 SW |
1013 | fep->fpi = fpi; |
1014 | fep->ops = match->data; | |
1015 | ||
1016 | ret = fep->ops->setup_data(ndev); | |
1017 | if (ret) | |
1018 | goto out_free_dev; | |
1019 | ||
1020 | fep->rx_skbuff = (struct sk_buff **)&fep[1]; | |
1021 | fep->tx_skbuff = fep->rx_skbuff + fpi->rx_ring; | |
1022 | ||
1023 | spin_lock_init(&fep->lock); | |
1024 | spin_lock_init(&fep->tx_lock); | |
1025 | ||
1026 | mac_addr = of_get_mac_address(ofdev->node); | |
1027 | if (mac_addr) | |
1028 | memcpy(ndev->dev_addr, mac_addr, 6); | |
1029 | ||
1030 | ret = fep->ops->allocate_bd(ndev); | |
1031 | if (ret) | |
1032 | goto out_cleanup_data; | |
1033 | ||
1034 | fep->rx_bd_base = fep->ring_base; | |
1035 | fep->tx_bd_base = fep->rx_bd_base + fpi->rx_ring; | |
1036 | ||
1037 | fep->tx_ring = fpi->tx_ring; | |
1038 | fep->rx_ring = fpi->rx_ring; | |
1039 | ||
8c02acd7 | 1040 | ndev->netdev_ops = &fs_enet_netdev_ops; |
976de6a8 | 1041 | ndev->watchdog_timeo = 2 * HZ; |
f860f49e SW |
1042 | if (fpi->use_napi) |
1043 | netif_napi_add(ndev, &fep->napi, fs_enet_rx_napi, | |
1044 | fpi->napi_weight); | |
1045 | ||
976de6a8 | 1046 | ndev->ethtool_ops = &fs_ethtool_ops; |
976de6a8 SW |
1047 | |
1048 | init_timer(&fep->phy_timer_list); | |
1049 | ||
1050 | netif_carrier_off(ndev); | |
1051 | ||
1052 | ret = register_netdev(ndev); | |
1053 | if (ret) | |
1054 | goto out_free_bd; | |
1055 | ||
7c510e4b | 1056 | printk(KERN_INFO "%s: fs_enet: %pM\n", ndev->name, ndev->dev_addr); |
976de6a8 SW |
1057 | |
1058 | return 0; | |
1059 | ||
1060 | out_free_bd: | |
1061 | fep->ops->free_bd(ndev); | |
1062 | out_cleanup_data: | |
1063 | fep->ops->cleanup_data(ndev); | |
1064 | out_free_dev: | |
1065 | free_netdev(ndev); | |
1066 | dev_set_drvdata(&ofdev->dev, NULL); | |
aa73832c | 1067 | of_node_put(fpi->phy_node); |
976de6a8 SW |
1068 | out_free_fpi: |
1069 | kfree(fpi); | |
1070 | return ret; | |
1071 | } | |
1072 | ||
1073 | static int fs_enet_remove(struct of_device *ofdev) | |
1074 | { | |
1075 | struct net_device *ndev = dev_get_drvdata(&ofdev->dev); | |
1076 | struct fs_enet_private *fep = netdev_priv(ndev); | |
1077 | ||
1078 | unregister_netdev(ndev); | |
1079 | ||
1080 | fep->ops->free_bd(ndev); | |
1081 | fep->ops->cleanup_data(ndev); | |
1082 | dev_set_drvdata(fep->dev, NULL); | |
aa73832c | 1083 | of_node_put(fep->fpi->phy_node); |
976de6a8 SW |
1084 | free_netdev(ndev); |
1085 | return 0; | |
1086 | } | |
1087 | ||
1088 | static struct of_device_id fs_enet_match[] = { | |
1089 | #ifdef CONFIG_FS_ENET_HAS_SCC | |
1090 | { | |
1091 | .compatible = "fsl,cpm1-scc-enet", | |
1092 | .data = (void *)&fs_scc_ops, | |
1093 | }, | |
f4f62301 HS |
1094 | { |
1095 | .compatible = "fsl,cpm2-scc-enet", | |
1096 | .data = (void *)&fs_scc_ops, | |
1097 | }, | |
976de6a8 SW |
1098 | #endif |
1099 | #ifdef CONFIG_FS_ENET_HAS_FCC | |
1100 | { | |
1101 | .compatible = "fsl,cpm2-fcc-enet", | |
1102 | .data = (void *)&fs_fcc_ops, | |
1103 | }, | |
1104 | #endif | |
1105 | #ifdef CONFIG_FS_ENET_HAS_FEC | |
1106 | { | |
1107 | .compatible = "fsl,pq1-fec-enet", | |
1108 | .data = (void *)&fs_fec_ops, | |
1109 | }, | |
1110 | #endif | |
1111 | {} | |
1112 | }; | |
1113 | ||
1114 | static struct of_platform_driver fs_enet_driver = { | |
1115 | .name = "fs_enet", | |
1116 | .match_table = fs_enet_match, | |
1117 | .probe = fs_enet_probe, | |
1118 | .remove = fs_enet_remove, | |
1119 | }; | |
1120 | ||
1121 | static int __init fs_init(void) | |
1122 | { | |
1d58ea30 | 1123 | return of_register_platform_driver(&fs_enet_driver); |
976de6a8 SW |
1124 | } |
1125 | ||
1126 | static void __exit fs_cleanup(void) | |
1127 | { | |
1128 | of_unregister_platform_driver(&fs_enet_driver); | |
976de6a8 | 1129 | } |
48257c4f | 1130 | |
9b8ee8e7 VB |
1131 | #ifdef CONFIG_NET_POLL_CONTROLLER |
1132 | static void fs_enet_netpoll(struct net_device *dev) | |
1133 | { | |
1134 | disable_irq(dev->irq); | |
7385d595 | 1135 | fs_enet_interrupt(dev->irq, dev); |
9b8ee8e7 VB |
1136 | enable_irq(dev->irq); |
1137 | } | |
1138 | #endif | |
1139 | ||
48257c4f PA |
1140 | /**************************************************************************************/ |
1141 | ||
1142 | module_init(fs_init); | |
1143 | module_exit(fs_cleanup); |