diff options
author | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-06-11 05:29:36 -0400 |
---|---|---|
committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-08-12 03:22:12 -0400 |
commit | ec21e2ec367697b4803e82662bdff6c8567745fc (patch) | |
tree | cdb42f597ff5e60516bdab59d306006fd1fafd1c /drivers/net/ethernet/freescale/fec_mpc52xx.c | |
parent | 5346ebf6db077d963e9d81af9df290d7f5532492 (diff) |
freescale: Move the Freescale drivers
Move the Freescale drivers into drivers/net/ethernet/freescale/ and
make the necessary Kconfig and Makefile changes.
CC: Sandeep Gopalpet <sandeep.kumar@freescale.com>
CC: Andy Fleming <afleming@freescale.com>
CC: Shlomi Gridish <gridish@freescale.com>
CC: Li Yang <leoli@freescale.com>
CC: Pantelis Antoniou <pantelis.antoniou@gmail.com>
CC: Vitaly Bordug <vbordug@ru.mvista.com>
CC: Dan Malek <dmalek@jlc.net>
CC: Sylvain Munaut <tnt@246tNt.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/freescale/fec_mpc52xx.c')
-rw-r--r-- | drivers/net/ethernet/freescale/fec_mpc52xx.c | 1104 |
1 files changed, 1104 insertions, 0 deletions
diff --git a/drivers/net/ethernet/freescale/fec_mpc52xx.c b/drivers/net/ethernet/freescale/fec_mpc52xx.c new file mode 100644 index 000000000000..cb4416e591f1 --- /dev/null +++ b/drivers/net/ethernet/freescale/fec_mpc52xx.c | |||
@@ -0,0 +1,1104 @@ | |||
1 | /* | ||
2 | * Driver for the MPC5200 Fast Ethernet Controller | ||
3 | * | ||
4 | * Originally written by Dale Farnsworth <dfarnsworth@mvista.com> and | ||
5 | * now maintained by Sylvain Munaut <tnt@246tNt.com> | ||
6 | * | ||
7 | * Copyright (C) 2007 Domen Puncer, Telargo, Inc. | ||
8 | * Copyright (C) 2007 Sylvain Munaut <tnt@246tNt.com> | ||
9 | * Copyright (C) 2003-2004 MontaVista, Software, Inc. | ||
10 | * | ||
11 | * This file is licensed under the terms of the GNU General Public License | ||
12 | * version 2. This program is licensed "as is" without any warranty of any | ||
13 | * kind, whether express or implied. | ||
14 | * | ||
15 | */ | ||
16 | |||
17 | #include <linux/dma-mapping.h> | ||
18 | #include <linux/module.h> | ||
19 | |||
20 | #include <linux/kernel.h> | ||
21 | #include <linux/types.h> | ||
22 | #include <linux/spinlock.h> | ||
23 | #include <linux/slab.h> | ||
24 | #include <linux/errno.h> | ||
25 | #include <linux/init.h> | ||
26 | #include <linux/interrupt.h> | ||
27 | #include <linux/crc32.h> | ||
28 | #include <linux/hardirq.h> | ||
29 | #include <linux/delay.h> | ||
30 | #include <linux/of_device.h> | ||
31 | #include <linux/of_mdio.h> | ||
32 | #include <linux/of_platform.h> | ||
33 | |||
34 | #include <linux/netdevice.h> | ||
35 | #include <linux/etherdevice.h> | ||
36 | #include <linux/ethtool.h> | ||
37 | #include <linux/skbuff.h> | ||
38 | |||
39 | #include <asm/io.h> | ||
40 | #include <asm/delay.h> | ||
41 | #include <asm/mpc52xx.h> | ||
42 | |||
43 | #include <sysdev/bestcomm/bestcomm.h> | ||
44 | #include <sysdev/bestcomm/fec.h> | ||
45 | |||
46 | #include "fec_mpc52xx.h" | ||
47 | |||
48 | #define DRIVER_NAME "mpc52xx-fec" | ||
49 | |||
50 | /* Private driver data structure */ | ||
51 | struct mpc52xx_fec_priv { | ||
52 | struct net_device *ndev; | ||
53 | int duplex; | ||
54 | int speed; | ||
55 | int r_irq; | ||
56 | int t_irq; | ||
57 | struct mpc52xx_fec __iomem *fec; | ||
58 | struct bcom_task *rx_dmatsk; | ||
59 | struct bcom_task *tx_dmatsk; | ||
60 | spinlock_t lock; | ||
61 | int msg_enable; | ||
62 | |||
63 | /* MDIO link details */ | ||
64 | unsigned int mdio_speed; | ||
65 | struct device_node *phy_node; | ||
66 | struct phy_device *phydev; | ||
67 | enum phy_state link; | ||
68 | int seven_wire_mode; | ||
69 | }; | ||
70 | |||
71 | |||
72 | static irqreturn_t mpc52xx_fec_interrupt(int, void *); | ||
73 | static irqreturn_t mpc52xx_fec_rx_interrupt(int, void *); | ||
74 | static irqreturn_t mpc52xx_fec_tx_interrupt(int, void *); | ||
75 | static void mpc52xx_fec_stop(struct net_device *dev); | ||
76 | static void mpc52xx_fec_start(struct net_device *dev); | ||
77 | static void mpc52xx_fec_reset(struct net_device *dev); | ||
78 | |||
79 | static u8 mpc52xx_fec_mac_addr[6]; | ||
80 | module_param_array_named(mac, mpc52xx_fec_mac_addr, byte, NULL, 0); | ||
81 | MODULE_PARM_DESC(mac, "six hex digits, ie. 0x1,0x2,0xc0,0x01,0xba,0xbe"); | ||
82 | |||
83 | #define MPC52xx_MESSAGES_DEFAULT ( NETIF_MSG_DRV | NETIF_MSG_PROBE | \ | ||
84 | NETIF_MSG_LINK | NETIF_MSG_IFDOWN | NETIF_MSG_IFUP) | ||
85 | static int debug = -1; /* the above default */ | ||
86 | module_param(debug, int, 0); | ||
87 | MODULE_PARM_DESC(debug, "debugging messages level"); | ||
88 | |||
89 | static void mpc52xx_fec_tx_timeout(struct net_device *dev) | ||
90 | { | ||
91 | struct mpc52xx_fec_priv *priv = netdev_priv(dev); | ||
92 | unsigned long flags; | ||
93 | |||
94 | dev_warn(&dev->dev, "transmit timed out\n"); | ||
95 | |||
96 | spin_lock_irqsave(&priv->lock, flags); | ||
97 | mpc52xx_fec_reset(dev); | ||
98 | dev->stats.tx_errors++; | ||
99 | spin_unlock_irqrestore(&priv->lock, flags); | ||
100 | |||
101 | netif_wake_queue(dev); | ||
102 | } | ||
103 | |||
104 | static void mpc52xx_fec_set_paddr(struct net_device *dev, u8 *mac) | ||
105 | { | ||
106 | struct mpc52xx_fec_priv *priv = netdev_priv(dev); | ||
107 | struct mpc52xx_fec __iomem *fec = priv->fec; | ||
108 | |||
109 | out_be32(&fec->paddr1, *(u32 *)(&mac[0])); | ||
110 | out_be32(&fec->paddr2, (*(u16 *)(&mac[4]) << 16) | FEC_PADDR2_TYPE); | ||
111 | } | ||
112 | |||
113 | static void mpc52xx_fec_get_paddr(struct net_device *dev, u8 *mac) | ||
114 | { | ||
115 | struct mpc52xx_fec_priv *priv = netdev_priv(dev); | ||
116 | struct mpc52xx_fec __iomem *fec = priv->fec; | ||
117 | |||
118 | *(u32 *)(&mac[0]) = in_be32(&fec->paddr1); | ||
119 | *(u16 *)(&mac[4]) = in_be32(&fec->paddr2) >> 16; | ||
120 | } | ||
121 | |||
122 | static int mpc52xx_fec_set_mac_address(struct net_device *dev, void *addr) | ||
123 | { | ||
124 | struct sockaddr *sock = addr; | ||
125 | |||
126 | memcpy(dev->dev_addr, sock->sa_data, dev->addr_len); | ||
127 | |||
128 | mpc52xx_fec_set_paddr(dev, sock->sa_data); | ||
129 | return 0; | ||
130 | } | ||
131 | |||
132 | static void mpc52xx_fec_free_rx_buffers(struct net_device *dev, struct bcom_task *s) | ||
133 | { | ||
134 | while (!bcom_queue_empty(s)) { | ||
135 | struct bcom_fec_bd *bd; | ||
136 | struct sk_buff *skb; | ||
137 | |||
138 | skb = bcom_retrieve_buffer(s, NULL, (struct bcom_bd **)&bd); | ||
139 | dma_unmap_single(dev->dev.parent, bd->skb_pa, skb->len, | ||
140 | DMA_FROM_DEVICE); | ||
141 | kfree_skb(skb); | ||
142 | } | ||
143 | } | ||
144 | |||
145 | static void | ||
146 | mpc52xx_fec_rx_submit(struct net_device *dev, struct sk_buff *rskb) | ||
147 | { | ||
148 | struct mpc52xx_fec_priv *priv = netdev_priv(dev); | ||
149 | struct bcom_fec_bd *bd; | ||
150 | |||
151 | bd = (struct bcom_fec_bd *) bcom_prepare_next_buffer(priv->rx_dmatsk); | ||
152 | bd->status = FEC_RX_BUFFER_SIZE; | ||
153 | bd->skb_pa = dma_map_single(dev->dev.parent, rskb->data, | ||
154 | FEC_RX_BUFFER_SIZE, DMA_FROM_DEVICE); | ||
155 | bcom_submit_next_buffer(priv->rx_dmatsk, rskb); | ||
156 | } | ||
157 | |||
158 | static int mpc52xx_fec_alloc_rx_buffers(struct net_device *dev, struct bcom_task *rxtsk) | ||
159 | { | ||
160 | struct sk_buff *skb; | ||
161 | |||
162 | while (!bcom_queue_full(rxtsk)) { | ||
163 | skb = dev_alloc_skb(FEC_RX_BUFFER_SIZE); | ||
164 | if (!skb) | ||
165 | return -EAGAIN; | ||
166 | |||
167 | /* zero out the initial receive buffers to aid debugging */ | ||
168 | memset(skb->data, 0, FEC_RX_BUFFER_SIZE); | ||
169 | mpc52xx_fec_rx_submit(dev, skb); | ||
170 | } | ||
171 | return 0; | ||
172 | } | ||
173 | |||
174 | /* based on generic_adjust_link from fs_enet-main.c */ | ||
175 | static void mpc52xx_fec_adjust_link(struct net_device *dev) | ||
176 | { | ||
177 | struct mpc52xx_fec_priv *priv = netdev_priv(dev); | ||
178 | struct phy_device *phydev = priv->phydev; | ||
179 | int new_state = 0; | ||
180 | |||
181 | if (phydev->link != PHY_DOWN) { | ||
182 | if (phydev->duplex != priv->duplex) { | ||
183 | struct mpc52xx_fec __iomem *fec = priv->fec; | ||
184 | u32 rcntrl; | ||
185 | u32 tcntrl; | ||
186 | |||
187 | new_state = 1; | ||
188 | priv->duplex = phydev->duplex; | ||
189 | |||
190 | rcntrl = in_be32(&fec->r_cntrl); | ||
191 | tcntrl = in_be32(&fec->x_cntrl); | ||
192 | |||
193 | rcntrl &= ~FEC_RCNTRL_DRT; | ||
194 | tcntrl &= ~FEC_TCNTRL_FDEN; | ||
195 | if (phydev->duplex == DUPLEX_FULL) | ||
196 | tcntrl |= FEC_TCNTRL_FDEN; /* FD enable */ | ||
197 | else | ||
198 | rcntrl |= FEC_RCNTRL_DRT; /* disable Rx on Tx (HD) */ | ||
199 | |||
200 | out_be32(&fec->r_cntrl, rcntrl); | ||
201 | out_be32(&fec->x_cntrl, tcntrl); | ||
202 | } | ||
203 | |||
204 | if (phydev->speed != priv->speed) { | ||
205 | new_state = 1; | ||
206 | priv->speed = phydev->speed; | ||
207 | } | ||
208 | |||
209 | if (priv->link == PHY_DOWN) { | ||
210 | new_state = 1; | ||
211 | priv->link = phydev->link; | ||
212 | } | ||
213 | |||
214 | } else if (priv->link) { | ||
215 | new_state = 1; | ||
216 | priv->link = PHY_DOWN; | ||
217 | priv->speed = 0; | ||
218 | priv->duplex = -1; | ||
219 | } | ||
220 | |||
221 | if (new_state && netif_msg_link(priv)) | ||
222 | phy_print_status(phydev); | ||
223 | } | ||
224 | |||
225 | static int mpc52xx_fec_open(struct net_device *dev) | ||
226 | { | ||
227 | struct mpc52xx_fec_priv *priv = netdev_priv(dev); | ||
228 | int err = -EBUSY; | ||
229 | |||
230 | if (priv->phy_node) { | ||
231 | priv->phydev = of_phy_connect(priv->ndev, priv->phy_node, | ||
232 | mpc52xx_fec_adjust_link, 0, 0); | ||
233 | if (!priv->phydev) { | ||
234 | dev_err(&dev->dev, "of_phy_connect failed\n"); | ||
235 | return -ENODEV; | ||
236 | } | ||
237 | phy_start(priv->phydev); | ||
238 | } | ||
239 | |||
240 | if (request_irq(dev->irq, mpc52xx_fec_interrupt, IRQF_SHARED, | ||
241 | DRIVER_NAME "_ctrl", dev)) { | ||
242 | dev_err(&dev->dev, "ctrl interrupt request failed\n"); | ||
243 | goto free_phy; | ||
244 | } | ||
245 | if (request_irq(priv->r_irq, mpc52xx_fec_rx_interrupt, 0, | ||
246 | DRIVER_NAME "_rx", dev)) { | ||
247 | dev_err(&dev->dev, "rx interrupt request failed\n"); | ||
248 | goto free_ctrl_irq; | ||
249 | } | ||
250 | if (request_irq(priv->t_irq, mpc52xx_fec_tx_interrupt, 0, | ||
251 | DRIVER_NAME "_tx", dev)) { | ||
252 | dev_err(&dev->dev, "tx interrupt request failed\n"); | ||
253 | goto free_2irqs; | ||
254 | } | ||
255 | |||
256 | bcom_fec_rx_reset(priv->rx_dmatsk); | ||
257 | bcom_fec_tx_reset(priv->tx_dmatsk); | ||
258 | |||
259 | err = mpc52xx_fec_alloc_rx_buffers(dev, priv->rx_dmatsk); | ||
260 | if (err) { | ||
261 | dev_err(&dev->dev, "mpc52xx_fec_alloc_rx_buffers failed\n"); | ||
262 | goto free_irqs; | ||
263 | } | ||
264 | |||
265 | bcom_enable(priv->rx_dmatsk); | ||
266 | bcom_enable(priv->tx_dmatsk); | ||
267 | |||
268 | mpc52xx_fec_start(dev); | ||
269 | |||
270 | netif_start_queue(dev); | ||
271 | |||
272 | return 0; | ||
273 | |||
274 | free_irqs: | ||
275 | free_irq(priv->t_irq, dev); | ||
276 | free_2irqs: | ||
277 | free_irq(priv->r_irq, dev); | ||
278 | free_ctrl_irq: | ||
279 | free_irq(dev->irq, dev); | ||
280 | free_phy: | ||
281 | if (priv->phydev) { | ||
282 | phy_stop(priv->phydev); | ||
283 | phy_disconnect(priv->phydev); | ||
284 | priv->phydev = NULL; | ||
285 | } | ||
286 | |||
287 | return err; | ||
288 | } | ||
289 | |||
290 | static int mpc52xx_fec_close(struct net_device *dev) | ||
291 | { | ||
292 | struct mpc52xx_fec_priv *priv = netdev_priv(dev); | ||
293 | |||
294 | netif_stop_queue(dev); | ||
295 | |||
296 | mpc52xx_fec_stop(dev); | ||
297 | |||
298 | mpc52xx_fec_free_rx_buffers(dev, priv->rx_dmatsk); | ||
299 | |||
300 | free_irq(dev->irq, dev); | ||
301 | free_irq(priv->r_irq, dev); | ||
302 | free_irq(priv->t_irq, dev); | ||
303 | |||
304 | if (priv->phydev) { | ||
305 | /* power down phy */ | ||
306 | phy_stop(priv->phydev); | ||
307 | phy_disconnect(priv->phydev); | ||
308 | priv->phydev = NULL; | ||
309 | } | ||
310 | |||
311 | return 0; | ||
312 | } | ||
313 | |||
314 | /* This will only be invoked if your driver is _not_ in XOFF state. | ||
315 | * What this means is that you need not check it, and that this | ||
316 | * invariant will hold if you make sure that the netif_*_queue() | ||
317 | * calls are done at the proper times. | ||
318 | */ | ||
319 | static int mpc52xx_fec_start_xmit(struct sk_buff *skb, struct net_device *dev) | ||
320 | { | ||
321 | struct mpc52xx_fec_priv *priv = netdev_priv(dev); | ||
322 | struct bcom_fec_bd *bd; | ||
323 | unsigned long flags; | ||
324 | |||
325 | if (bcom_queue_full(priv->tx_dmatsk)) { | ||
326 | if (net_ratelimit()) | ||
327 | dev_err(&dev->dev, "transmit queue overrun\n"); | ||
328 | return NETDEV_TX_BUSY; | ||
329 | } | ||
330 | |||
331 | spin_lock_irqsave(&priv->lock, flags); | ||
332 | |||
333 | bd = (struct bcom_fec_bd *) | ||
334 | bcom_prepare_next_buffer(priv->tx_dmatsk); | ||
335 | |||
336 | bd->status = skb->len | BCOM_FEC_TX_BD_TFD | BCOM_FEC_TX_BD_TC; | ||
337 | bd->skb_pa = dma_map_single(dev->dev.parent, skb->data, skb->len, | ||
338 | DMA_TO_DEVICE); | ||
339 | |||
340 | skb_tx_timestamp(skb); | ||
341 | bcom_submit_next_buffer(priv->tx_dmatsk, skb); | ||
342 | spin_unlock_irqrestore(&priv->lock, flags); | ||
343 | |||
344 | if (bcom_queue_full(priv->tx_dmatsk)) { | ||
345 | netif_stop_queue(dev); | ||
346 | } | ||
347 | |||
348 | return NETDEV_TX_OK; | ||
349 | } | ||
350 | |||
351 | #ifdef CONFIG_NET_POLL_CONTROLLER | ||
352 | static void mpc52xx_fec_poll_controller(struct net_device *dev) | ||
353 | { | ||
354 | struct mpc52xx_fec_priv *priv = netdev_priv(dev); | ||
355 | |||
356 | disable_irq(priv->t_irq); | ||
357 | mpc52xx_fec_tx_interrupt(priv->t_irq, dev); | ||
358 | enable_irq(priv->t_irq); | ||
359 | disable_irq(priv->r_irq); | ||
360 | mpc52xx_fec_rx_interrupt(priv->r_irq, dev); | ||
361 | enable_irq(priv->r_irq); | ||
362 | } | ||
363 | #endif | ||
364 | |||
365 | |||
366 | /* This handles BestComm transmit task interrupts | ||
367 | */ | ||
368 | static irqreturn_t mpc52xx_fec_tx_interrupt(int irq, void *dev_id) | ||
369 | { | ||
370 | struct net_device *dev = dev_id; | ||
371 | struct mpc52xx_fec_priv *priv = netdev_priv(dev); | ||
372 | |||
373 | spin_lock(&priv->lock); | ||
374 | while (bcom_buffer_done(priv->tx_dmatsk)) { | ||
375 | struct sk_buff *skb; | ||
376 | struct bcom_fec_bd *bd; | ||
377 | skb = bcom_retrieve_buffer(priv->tx_dmatsk, NULL, | ||
378 | (struct bcom_bd **)&bd); | ||
379 | dma_unmap_single(dev->dev.parent, bd->skb_pa, skb->len, | ||
380 | DMA_TO_DEVICE); | ||
381 | |||
382 | dev_kfree_skb_irq(skb); | ||
383 | } | ||
384 | spin_unlock(&priv->lock); | ||
385 | |||
386 | netif_wake_queue(dev); | ||
387 | |||
388 | return IRQ_HANDLED; | ||
389 | } | ||
390 | |||
391 | static irqreturn_t mpc52xx_fec_rx_interrupt(int irq, void *dev_id) | ||
392 | { | ||
393 | struct net_device *dev = dev_id; | ||
394 | struct mpc52xx_fec_priv *priv = netdev_priv(dev); | ||
395 | struct sk_buff *rskb; /* received sk_buff */ | ||
396 | struct sk_buff *skb; /* new sk_buff to enqueue in its place */ | ||
397 | struct bcom_fec_bd *bd; | ||
398 | u32 status, physaddr; | ||
399 | int length; | ||
400 | |||
401 | spin_lock(&priv->lock); | ||
402 | |||
403 | while (bcom_buffer_done(priv->rx_dmatsk)) { | ||
404 | |||
405 | rskb = bcom_retrieve_buffer(priv->rx_dmatsk, &status, | ||
406 | (struct bcom_bd **)&bd); | ||
407 | physaddr = bd->skb_pa; | ||
408 | |||
409 | /* Test for errors in received frame */ | ||
410 | if (status & BCOM_FEC_RX_BD_ERRORS) { | ||
411 | /* Drop packet and reuse the buffer */ | ||
412 | mpc52xx_fec_rx_submit(dev, rskb); | ||
413 | dev->stats.rx_dropped++; | ||
414 | continue; | ||
415 | } | ||
416 | |||
417 | /* skbs are allocated on open, so now we allocate a new one, | ||
418 | * and remove the old (with the packet) */ | ||
419 | skb = dev_alloc_skb(FEC_RX_BUFFER_SIZE); | ||
420 | if (!skb) { | ||
421 | /* Can't get a new one : reuse the same & drop pkt */ | ||
422 | dev_notice(&dev->dev, "Low memory - dropped packet.\n"); | ||
423 | mpc52xx_fec_rx_submit(dev, rskb); | ||
424 | dev->stats.rx_dropped++; | ||
425 | continue; | ||
426 | } | ||
427 | |||
428 | /* Enqueue the new sk_buff back on the hardware */ | ||
429 | mpc52xx_fec_rx_submit(dev, skb); | ||
430 | |||
431 | /* Process the received skb - Drop the spin lock while | ||
432 | * calling into the network stack */ | ||
433 | spin_unlock(&priv->lock); | ||
434 | |||
435 | dma_unmap_single(dev->dev.parent, physaddr, rskb->len, | ||
436 | DMA_FROM_DEVICE); | ||
437 | length = status & BCOM_FEC_RX_BD_LEN_MASK; | ||
438 | skb_put(rskb, length - 4); /* length without CRC32 */ | ||
439 | rskb->protocol = eth_type_trans(rskb, dev); | ||
440 | if (!skb_defer_rx_timestamp(skb)) | ||
441 | netif_rx(rskb); | ||
442 | |||
443 | spin_lock(&priv->lock); | ||
444 | } | ||
445 | |||
446 | spin_unlock(&priv->lock); | ||
447 | |||
448 | return IRQ_HANDLED; | ||
449 | } | ||
450 | |||
451 | static irqreturn_t mpc52xx_fec_interrupt(int irq, void *dev_id) | ||
452 | { | ||
453 | struct net_device *dev = dev_id; | ||
454 | struct mpc52xx_fec_priv *priv = netdev_priv(dev); | ||
455 | struct mpc52xx_fec __iomem *fec = priv->fec; | ||
456 | u32 ievent; | ||
457 | |||
458 | ievent = in_be32(&fec->ievent); | ||
459 | |||
460 | ievent &= ~FEC_IEVENT_MII; /* mii is handled separately */ | ||
461 | if (!ievent) | ||
462 | return IRQ_NONE; | ||
463 | |||
464 | out_be32(&fec->ievent, ievent); /* clear pending events */ | ||
465 | |||
466 | /* on fifo error, soft-reset fec */ | ||
467 | if (ievent & (FEC_IEVENT_RFIFO_ERROR | FEC_IEVENT_XFIFO_ERROR)) { | ||
468 | |||
469 | if (net_ratelimit() && (ievent & FEC_IEVENT_RFIFO_ERROR)) | ||
470 | dev_warn(&dev->dev, "FEC_IEVENT_RFIFO_ERROR\n"); | ||
471 | if (net_ratelimit() && (ievent & FEC_IEVENT_XFIFO_ERROR)) | ||
472 | dev_warn(&dev->dev, "FEC_IEVENT_XFIFO_ERROR\n"); | ||
473 | |||
474 | spin_lock(&priv->lock); | ||
475 | mpc52xx_fec_reset(dev); | ||
476 | spin_unlock(&priv->lock); | ||
477 | |||
478 | return IRQ_HANDLED; | ||
479 | } | ||
480 | |||
481 | if (ievent & ~FEC_IEVENT_TFINT) | ||
482 | dev_dbg(&dev->dev, "ievent: %08x\n", ievent); | ||
483 | |||
484 | return IRQ_HANDLED; | ||
485 | } | ||
486 | |||
487 | /* | ||
488 | * Get the current statistics. | ||
489 | * This may be called with the card open or closed. | ||
490 | */ | ||
491 | static struct net_device_stats *mpc52xx_fec_get_stats(struct net_device *dev) | ||
492 | { | ||
493 | struct mpc52xx_fec_priv *priv = netdev_priv(dev); | ||
494 | struct net_device_stats *stats = &dev->stats; | ||
495 | struct mpc52xx_fec __iomem *fec = priv->fec; | ||
496 | |||
497 | stats->rx_bytes = in_be32(&fec->rmon_r_octets); | ||
498 | stats->rx_packets = in_be32(&fec->rmon_r_packets); | ||
499 | stats->rx_errors = in_be32(&fec->rmon_r_crc_align) + | ||
500 | in_be32(&fec->rmon_r_undersize) + | ||
501 | in_be32(&fec->rmon_r_oversize) + | ||
502 | in_be32(&fec->rmon_r_frag) + | ||
503 | in_be32(&fec->rmon_r_jab); | ||
504 | |||
505 | stats->tx_bytes = in_be32(&fec->rmon_t_octets); | ||
506 | stats->tx_packets = in_be32(&fec->rmon_t_packets); | ||
507 | stats->tx_errors = in_be32(&fec->rmon_t_crc_align) + | ||
508 | in_be32(&fec->rmon_t_undersize) + | ||
509 | in_be32(&fec->rmon_t_oversize) + | ||
510 | in_be32(&fec->rmon_t_frag) + | ||
511 | in_be32(&fec->rmon_t_jab); | ||
512 | |||
513 | stats->multicast = in_be32(&fec->rmon_r_mc_pkt); | ||
514 | stats->collisions = in_be32(&fec->rmon_t_col); | ||
515 | |||
516 | /* detailed rx_errors: */ | ||
517 | stats->rx_length_errors = in_be32(&fec->rmon_r_undersize) | ||
518 | + in_be32(&fec->rmon_r_oversize) | ||
519 | + in_be32(&fec->rmon_r_frag) | ||
520 | + in_be32(&fec->rmon_r_jab); | ||
521 | stats->rx_over_errors = in_be32(&fec->r_macerr); | ||
522 | stats->rx_crc_errors = in_be32(&fec->ieee_r_crc); | ||
523 | stats->rx_frame_errors = in_be32(&fec->ieee_r_align); | ||
524 | stats->rx_fifo_errors = in_be32(&fec->rmon_r_drop); | ||
525 | stats->rx_missed_errors = in_be32(&fec->rmon_r_drop); | ||
526 | |||
527 | /* detailed tx_errors: */ | ||
528 | stats->tx_aborted_errors = 0; | ||
529 | stats->tx_carrier_errors = in_be32(&fec->ieee_t_cserr); | ||
530 | stats->tx_fifo_errors = in_be32(&fec->rmon_t_drop); | ||
531 | stats->tx_heartbeat_errors = in_be32(&fec->ieee_t_sqe); | ||
532 | stats->tx_window_errors = in_be32(&fec->ieee_t_lcol); | ||
533 | |||
534 | return stats; | ||
535 | } | ||
536 | |||
537 | /* | ||
538 | * Read MIB counters in order to reset them, | ||
539 | * then zero all the stats fields in memory | ||
540 | */ | ||
541 | static void mpc52xx_fec_reset_stats(struct net_device *dev) | ||
542 | { | ||
543 | struct mpc52xx_fec_priv *priv = netdev_priv(dev); | ||
544 | struct mpc52xx_fec __iomem *fec = priv->fec; | ||
545 | |||
546 | out_be32(&fec->mib_control, FEC_MIB_DISABLE); | ||
547 | memset_io(&fec->rmon_t_drop, 0, | ||
548 | offsetof(struct mpc52xx_fec, reserved10) - | ||
549 | offsetof(struct mpc52xx_fec, rmon_t_drop)); | ||
550 | out_be32(&fec->mib_control, 0); | ||
551 | |||
552 | memset(&dev->stats, 0, sizeof(dev->stats)); | ||
553 | } | ||
554 | |||
555 | /* | ||
556 | * Set or clear the multicast filter for this adaptor. | ||
557 | */ | ||
558 | static void mpc52xx_fec_set_multicast_list(struct net_device *dev) | ||
559 | { | ||
560 | struct mpc52xx_fec_priv *priv = netdev_priv(dev); | ||
561 | struct mpc52xx_fec __iomem *fec = priv->fec; | ||
562 | u32 rx_control; | ||
563 | |||
564 | rx_control = in_be32(&fec->r_cntrl); | ||
565 | |||
566 | if (dev->flags & IFF_PROMISC) { | ||
567 | rx_control |= FEC_RCNTRL_PROM; | ||
568 | out_be32(&fec->r_cntrl, rx_control); | ||
569 | } else { | ||
570 | rx_control &= ~FEC_RCNTRL_PROM; | ||
571 | out_be32(&fec->r_cntrl, rx_control); | ||
572 | |||
573 | if (dev->flags & IFF_ALLMULTI) { | ||
574 | out_be32(&fec->gaddr1, 0xffffffff); | ||
575 | out_be32(&fec->gaddr2, 0xffffffff); | ||
576 | } else { | ||
577 | u32 crc; | ||
578 | struct netdev_hw_addr *ha; | ||
579 | u32 gaddr1 = 0x00000000; | ||
580 | u32 gaddr2 = 0x00000000; | ||
581 | |||
582 | netdev_for_each_mc_addr(ha, dev) { | ||
583 | crc = ether_crc_le(6, ha->addr) >> 26; | ||
584 | if (crc >= 32) | ||
585 | gaddr1 |= 1 << (crc-32); | ||
586 | else | ||
587 | gaddr2 |= 1 << crc; | ||
588 | } | ||
589 | out_be32(&fec->gaddr1, gaddr1); | ||
590 | out_be32(&fec->gaddr2, gaddr2); | ||
591 | } | ||
592 | } | ||
593 | } | ||
594 | |||
595 | /** | ||
596 | * mpc52xx_fec_hw_init | ||
597 | * @dev: network device | ||
598 | * | ||
599 | * Setup various hardware setting, only needed once on start | ||
600 | */ | ||
601 | static void mpc52xx_fec_hw_init(struct net_device *dev) | ||
602 | { | ||
603 | struct mpc52xx_fec_priv *priv = netdev_priv(dev); | ||
604 | struct mpc52xx_fec __iomem *fec = priv->fec; | ||
605 | int i; | ||
606 | |||
607 | /* Whack a reset. We should wait for this. */ | ||
608 | out_be32(&fec->ecntrl, FEC_ECNTRL_RESET); | ||
609 | for (i = 0; i < FEC_RESET_DELAY; ++i) { | ||
610 | if ((in_be32(&fec->ecntrl) & FEC_ECNTRL_RESET) == 0) | ||
611 | break; | ||
612 | udelay(1); | ||
613 | } | ||
614 | if (i == FEC_RESET_DELAY) | ||
615 | dev_err(&dev->dev, "FEC Reset timeout!\n"); | ||
616 | |||
617 | /* set pause to 0x20 frames */ | ||
618 | out_be32(&fec->op_pause, FEC_OP_PAUSE_OPCODE | 0x20); | ||
619 | |||
620 | /* high service request will be deasserted when there's < 7 bytes in fifo | ||
621 | * low service request will be deasserted when there's < 4*7 bytes in fifo | ||
622 | */ | ||
623 | out_be32(&fec->rfifo_cntrl, FEC_FIFO_CNTRL_FRAME | FEC_FIFO_CNTRL_LTG_7); | ||
624 | out_be32(&fec->tfifo_cntrl, FEC_FIFO_CNTRL_FRAME | FEC_FIFO_CNTRL_LTG_7); | ||
625 | |||
626 | /* alarm when <= x bytes in FIFO */ | ||
627 | out_be32(&fec->rfifo_alarm, 0x0000030c); | ||
628 | out_be32(&fec->tfifo_alarm, 0x00000100); | ||
629 | |||
630 | /* begin transmittion when 256 bytes are in FIFO (or EOF or FIFO full) */ | ||
631 | out_be32(&fec->x_wmrk, FEC_FIFO_WMRK_256B); | ||
632 | |||
633 | /* enable crc generation */ | ||
634 | out_be32(&fec->xmit_fsm, FEC_XMIT_FSM_APPEND_CRC | FEC_XMIT_FSM_ENABLE_CRC); | ||
635 | out_be32(&fec->iaddr1, 0x00000000); /* No individual filter */ | ||
636 | out_be32(&fec->iaddr2, 0x00000000); /* No individual filter */ | ||
637 | |||
638 | /* set phy speed. | ||
639 | * this can't be done in phy driver, since it needs to be called | ||
640 | * before fec stuff (even on resume) */ | ||
641 | out_be32(&fec->mii_speed, priv->mdio_speed); | ||
642 | } | ||
643 | |||
644 | /** | ||
645 | * mpc52xx_fec_start | ||
646 | * @dev: network device | ||
647 | * | ||
648 | * This function is called to start or restart the FEC during a link | ||
649 | * change. This happens on fifo errors or when switching between half | ||
650 | * and full duplex. | ||
651 | */ | ||
652 | static void mpc52xx_fec_start(struct net_device *dev) | ||
653 | { | ||
654 | struct mpc52xx_fec_priv *priv = netdev_priv(dev); | ||
655 | struct mpc52xx_fec __iomem *fec = priv->fec; | ||
656 | u32 rcntrl; | ||
657 | u32 tcntrl; | ||
658 | u32 tmp; | ||
659 | |||
660 | /* clear sticky error bits */ | ||
661 | tmp = FEC_FIFO_STATUS_ERR | FEC_FIFO_STATUS_UF | FEC_FIFO_STATUS_OF; | ||
662 | out_be32(&fec->rfifo_status, in_be32(&fec->rfifo_status) & tmp); | ||
663 | out_be32(&fec->tfifo_status, in_be32(&fec->tfifo_status) & tmp); | ||
664 | |||
665 | /* FIFOs will reset on mpc52xx_fec_enable */ | ||
666 | out_be32(&fec->reset_cntrl, FEC_RESET_CNTRL_ENABLE_IS_RESET); | ||
667 | |||
668 | /* Set station address. */ | ||
669 | mpc52xx_fec_set_paddr(dev, dev->dev_addr); | ||
670 | |||
671 | mpc52xx_fec_set_multicast_list(dev); | ||
672 | |||
673 | /* set max frame len, enable flow control, select mii mode */ | ||
674 | rcntrl = FEC_RX_BUFFER_SIZE << 16; /* max frame length */ | ||
675 | rcntrl |= FEC_RCNTRL_FCE; | ||
676 | |||
677 | if (!priv->seven_wire_mode) | ||
678 | rcntrl |= FEC_RCNTRL_MII_MODE; | ||
679 | |||
680 | if (priv->duplex == DUPLEX_FULL) | ||
681 | tcntrl = FEC_TCNTRL_FDEN; /* FD enable */ | ||
682 | else { | ||
683 | rcntrl |= FEC_RCNTRL_DRT; /* disable Rx on Tx (HD) */ | ||
684 | tcntrl = 0; | ||
685 | } | ||
686 | out_be32(&fec->r_cntrl, rcntrl); | ||
687 | out_be32(&fec->x_cntrl, tcntrl); | ||
688 | |||
689 | /* Clear any outstanding interrupt. */ | ||
690 | out_be32(&fec->ievent, 0xffffffff); | ||
691 | |||
692 | /* Enable interrupts we wish to service. */ | ||
693 | out_be32(&fec->imask, FEC_IMASK_ENABLE); | ||
694 | |||
695 | /* And last, enable the transmit and receive processing. */ | ||
696 | out_be32(&fec->ecntrl, FEC_ECNTRL_ETHER_EN); | ||
697 | out_be32(&fec->r_des_active, 0x01000000); | ||
698 | } | ||
699 | |||
700 | /** | ||
701 | * mpc52xx_fec_stop | ||
702 | * @dev: network device | ||
703 | * | ||
704 | * stop all activity on fec and empty dma buffers | ||
705 | */ | ||
706 | static void mpc52xx_fec_stop(struct net_device *dev) | ||
707 | { | ||
708 | struct mpc52xx_fec_priv *priv = netdev_priv(dev); | ||
709 | struct mpc52xx_fec __iomem *fec = priv->fec; | ||
710 | unsigned long timeout; | ||
711 | |||
712 | /* disable all interrupts */ | ||
713 | out_be32(&fec->imask, 0); | ||
714 | |||
715 | /* Disable the rx task. */ | ||
716 | bcom_disable(priv->rx_dmatsk); | ||
717 | |||
718 | /* Wait for tx queue to drain, but only if we're in process context */ | ||
719 | if (!in_interrupt()) { | ||
720 | timeout = jiffies + msecs_to_jiffies(2000); | ||
721 | while (time_before(jiffies, timeout) && | ||
722 | !bcom_queue_empty(priv->tx_dmatsk)) | ||
723 | msleep(100); | ||
724 | |||
725 | if (time_after_eq(jiffies, timeout)) | ||
726 | dev_err(&dev->dev, "queues didn't drain\n"); | ||
727 | #if 1 | ||
728 | if (time_after_eq(jiffies, timeout)) { | ||
729 | dev_err(&dev->dev, " tx: index: %i, outdex: %i\n", | ||
730 | priv->tx_dmatsk->index, | ||
731 | priv->tx_dmatsk->outdex); | ||
732 | dev_err(&dev->dev, " rx: index: %i, outdex: %i\n", | ||
733 | priv->rx_dmatsk->index, | ||
734 | priv->rx_dmatsk->outdex); | ||
735 | } | ||
736 | #endif | ||
737 | } | ||
738 | |||
739 | bcom_disable(priv->tx_dmatsk); | ||
740 | |||
741 | /* Stop FEC */ | ||
742 | out_be32(&fec->ecntrl, in_be32(&fec->ecntrl) & ~FEC_ECNTRL_ETHER_EN); | ||
743 | } | ||
744 | |||
745 | /* reset fec and bestcomm tasks */ | ||
746 | static void mpc52xx_fec_reset(struct net_device *dev) | ||
747 | { | ||
748 | struct mpc52xx_fec_priv *priv = netdev_priv(dev); | ||
749 | struct mpc52xx_fec __iomem *fec = priv->fec; | ||
750 | |||
751 | mpc52xx_fec_stop(dev); | ||
752 | |||
753 | out_be32(&fec->rfifo_status, in_be32(&fec->rfifo_status)); | ||
754 | out_be32(&fec->reset_cntrl, FEC_RESET_CNTRL_RESET_FIFO); | ||
755 | |||
756 | mpc52xx_fec_free_rx_buffers(dev, priv->rx_dmatsk); | ||
757 | |||
758 | mpc52xx_fec_hw_init(dev); | ||
759 | |||
760 | bcom_fec_rx_reset(priv->rx_dmatsk); | ||
761 | bcom_fec_tx_reset(priv->tx_dmatsk); | ||
762 | |||
763 | mpc52xx_fec_alloc_rx_buffers(dev, priv->rx_dmatsk); | ||
764 | |||
765 | bcom_enable(priv->rx_dmatsk); | ||
766 | bcom_enable(priv->tx_dmatsk); | ||
767 | |||
768 | mpc52xx_fec_start(dev); | ||
769 | |||
770 | netif_wake_queue(dev); | ||
771 | } | ||
772 | |||
773 | |||
774 | /* ethtool interface */ | ||
775 | |||
776 | static int mpc52xx_fec_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | ||
777 | { | ||
778 | struct mpc52xx_fec_priv *priv = netdev_priv(dev); | ||
779 | |||
780 | if (!priv->phydev) | ||
781 | return -ENODEV; | ||
782 | |||
783 | return phy_ethtool_gset(priv->phydev, cmd); | ||
784 | } | ||
785 | |||
786 | static int mpc52xx_fec_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | ||
787 | { | ||
788 | struct mpc52xx_fec_priv *priv = netdev_priv(dev); | ||
789 | |||
790 | if (!priv->phydev) | ||
791 | return -ENODEV; | ||
792 | |||
793 | return phy_ethtool_sset(priv->phydev, cmd); | ||
794 | } | ||
795 | |||
796 | static u32 mpc52xx_fec_get_msglevel(struct net_device *dev) | ||
797 | { | ||
798 | struct mpc52xx_fec_priv *priv = netdev_priv(dev); | ||
799 | return priv->msg_enable; | ||
800 | } | ||
801 | |||
802 | static void mpc52xx_fec_set_msglevel(struct net_device *dev, u32 level) | ||
803 | { | ||
804 | struct mpc52xx_fec_priv *priv = netdev_priv(dev); | ||
805 | priv->msg_enable = level; | ||
806 | } | ||
807 | |||
808 | static const struct ethtool_ops mpc52xx_fec_ethtool_ops = { | ||
809 | .get_settings = mpc52xx_fec_get_settings, | ||
810 | .set_settings = mpc52xx_fec_set_settings, | ||
811 | .get_link = ethtool_op_get_link, | ||
812 | .get_msglevel = mpc52xx_fec_get_msglevel, | ||
813 | .set_msglevel = mpc52xx_fec_set_msglevel, | ||
814 | }; | ||
815 | |||
816 | |||
817 | static int mpc52xx_fec_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) | ||
818 | { | ||
819 | struct mpc52xx_fec_priv *priv = netdev_priv(dev); | ||
820 | |||
821 | if (!priv->phydev) | ||
822 | return -ENOTSUPP; | ||
823 | |||
824 | return phy_mii_ioctl(priv->phydev, rq, cmd); | ||
825 | } | ||
826 | |||
827 | static const struct net_device_ops mpc52xx_fec_netdev_ops = { | ||
828 | .ndo_open = mpc52xx_fec_open, | ||
829 | .ndo_stop = mpc52xx_fec_close, | ||
830 | .ndo_start_xmit = mpc52xx_fec_start_xmit, | ||
831 | .ndo_set_multicast_list = mpc52xx_fec_set_multicast_list, | ||
832 | .ndo_set_mac_address = mpc52xx_fec_set_mac_address, | ||
833 | .ndo_validate_addr = eth_validate_addr, | ||
834 | .ndo_do_ioctl = mpc52xx_fec_ioctl, | ||
835 | .ndo_change_mtu = eth_change_mtu, | ||
836 | .ndo_tx_timeout = mpc52xx_fec_tx_timeout, | ||
837 | .ndo_get_stats = mpc52xx_fec_get_stats, | ||
838 | #ifdef CONFIG_NET_POLL_CONTROLLER | ||
839 | .ndo_poll_controller = mpc52xx_fec_poll_controller, | ||
840 | #endif | ||
841 | }; | ||
842 | |||
843 | /* ======================================================================== */ | ||
844 | /* OF Driver */ | ||
845 | /* ======================================================================== */ | ||
846 | |||
847 | static int __devinit mpc52xx_fec_probe(struct platform_device *op) | ||
848 | { | ||
849 | int rv; | ||
850 | struct net_device *ndev; | ||
851 | struct mpc52xx_fec_priv *priv = NULL; | ||
852 | struct resource mem; | ||
853 | const u32 *prop; | ||
854 | int prop_size; | ||
855 | |||
856 | phys_addr_t rx_fifo; | ||
857 | phys_addr_t tx_fifo; | ||
858 | |||
859 | /* Get the ether ndev & it's private zone */ | ||
860 | ndev = alloc_etherdev(sizeof(struct mpc52xx_fec_priv)); | ||
861 | if (!ndev) | ||
862 | return -ENOMEM; | ||
863 | |||
864 | priv = netdev_priv(ndev); | ||
865 | priv->ndev = ndev; | ||
866 | |||
867 | /* Reserve FEC control zone */ | ||
868 | rv = of_address_to_resource(op->dev.of_node, 0, &mem); | ||
869 | if (rv) { | ||
870 | printk(KERN_ERR DRIVER_NAME ": " | ||
871 | "Error while parsing device node resource\n" ); | ||
872 | goto err_netdev; | ||
873 | } | ||
874 | if (resource_size(&mem) < sizeof(struct mpc52xx_fec)) { | ||
875 | printk(KERN_ERR DRIVER_NAME | ||
876 | " - invalid resource size (%lx < %x), check mpc52xx_devices.c\n", | ||
877 | (unsigned long)resource_size(&mem), | ||
878 | sizeof(struct mpc52xx_fec)); | ||
879 | rv = -EINVAL; | ||
880 | goto err_netdev; | ||
881 | } | ||
882 | |||
883 | if (!request_mem_region(mem.start, sizeof(struct mpc52xx_fec), | ||
884 | DRIVER_NAME)) { | ||
885 | rv = -EBUSY; | ||
886 | goto err_netdev; | ||
887 | } | ||
888 | |||
889 | /* Init ether ndev with what we have */ | ||
890 | ndev->netdev_ops = &mpc52xx_fec_netdev_ops; | ||
891 | ndev->ethtool_ops = &mpc52xx_fec_ethtool_ops; | ||
892 | ndev->watchdog_timeo = FEC_WATCHDOG_TIMEOUT; | ||
893 | ndev->base_addr = mem.start; | ||
894 | SET_NETDEV_DEV(ndev, &op->dev); | ||
895 | |||
896 | spin_lock_init(&priv->lock); | ||
897 | |||
898 | /* ioremap the zones */ | ||
899 | priv->fec = ioremap(mem.start, sizeof(struct mpc52xx_fec)); | ||
900 | |||
901 | if (!priv->fec) { | ||
902 | rv = -ENOMEM; | ||
903 | goto err_mem_region; | ||
904 | } | ||
905 | |||
906 | /* Bestcomm init */ | ||
907 | rx_fifo = ndev->base_addr + offsetof(struct mpc52xx_fec, rfifo_data); | ||
908 | tx_fifo = ndev->base_addr + offsetof(struct mpc52xx_fec, tfifo_data); | ||
909 | |||
910 | priv->rx_dmatsk = bcom_fec_rx_init(FEC_RX_NUM_BD, rx_fifo, FEC_RX_BUFFER_SIZE); | ||
911 | priv->tx_dmatsk = bcom_fec_tx_init(FEC_TX_NUM_BD, tx_fifo); | ||
912 | |||
913 | if (!priv->rx_dmatsk || !priv->tx_dmatsk) { | ||
914 | printk(KERN_ERR DRIVER_NAME ": Can not init SDMA tasks\n" ); | ||
915 | rv = -ENOMEM; | ||
916 | goto err_rx_tx_dmatsk; | ||
917 | } | ||
918 | |||
919 | /* Get the IRQ we need one by one */ | ||
920 | /* Control */ | ||
921 | ndev->irq = irq_of_parse_and_map(op->dev.of_node, 0); | ||
922 | |||
923 | /* RX */ | ||
924 | priv->r_irq = bcom_get_task_irq(priv->rx_dmatsk); | ||
925 | |||
926 | /* TX */ | ||
927 | priv->t_irq = bcom_get_task_irq(priv->tx_dmatsk); | ||
928 | |||
929 | /* MAC address init */ | ||
930 | if (!is_zero_ether_addr(mpc52xx_fec_mac_addr)) | ||
931 | memcpy(ndev->dev_addr, mpc52xx_fec_mac_addr, 6); | ||
932 | else | ||
933 | mpc52xx_fec_get_paddr(ndev, ndev->dev_addr); | ||
934 | |||
935 | priv->msg_enable = netif_msg_init(debug, MPC52xx_MESSAGES_DEFAULT); | ||
936 | |||
937 | /* | ||
938 | * Link mode configuration | ||
939 | */ | ||
940 | |||
941 | /* Start with safe defaults for link connection */ | ||
942 | priv->speed = 100; | ||
943 | priv->duplex = DUPLEX_HALF; | ||
944 | priv->mdio_speed = ((mpc5xxx_get_bus_frequency(op->dev.of_node) >> 20) / 5) << 1; | ||
945 | |||
946 | /* The current speed preconfigures the speed of the MII link */ | ||
947 | prop = of_get_property(op->dev.of_node, "current-speed", &prop_size); | ||
948 | if (prop && (prop_size >= sizeof(u32) * 2)) { | ||
949 | priv->speed = prop[0]; | ||
950 | priv->duplex = prop[1] ? DUPLEX_FULL : DUPLEX_HALF; | ||
951 | } | ||
952 | |||
953 | /* If there is a phy handle, then get the PHY node */ | ||
954 | priv->phy_node = of_parse_phandle(op->dev.of_node, "phy-handle", 0); | ||
955 | |||
956 | /* the 7-wire property means don't use MII mode */ | ||
957 | if (of_find_property(op->dev.of_node, "fsl,7-wire-mode", NULL)) { | ||
958 | priv->seven_wire_mode = 1; | ||
959 | dev_info(&ndev->dev, "using 7-wire PHY mode\n"); | ||
960 | } | ||
961 | |||
962 | /* Hardware init */ | ||
963 | mpc52xx_fec_hw_init(ndev); | ||
964 | mpc52xx_fec_reset_stats(ndev); | ||
965 | |||
966 | rv = register_netdev(ndev); | ||
967 | if (rv < 0) | ||
968 | goto err_node; | ||
969 | |||
970 | /* We're done ! */ | ||
971 | dev_set_drvdata(&op->dev, ndev); | ||
972 | |||
973 | return 0; | ||
974 | |||
975 | err_node: | ||
976 | of_node_put(priv->phy_node); | ||
977 | irq_dispose_mapping(ndev->irq); | ||
978 | err_rx_tx_dmatsk: | ||
979 | if (priv->rx_dmatsk) | ||
980 | bcom_fec_rx_release(priv->rx_dmatsk); | ||
981 | if (priv->tx_dmatsk) | ||
982 | bcom_fec_tx_release(priv->tx_dmatsk); | ||
983 | iounmap(priv->fec); | ||
984 | err_mem_region: | ||
985 | release_mem_region(mem.start, sizeof(struct mpc52xx_fec)); | ||
986 | err_netdev: | ||
987 | free_netdev(ndev); | ||
988 | |||
989 | return rv; | ||
990 | } | ||
991 | |||
992 | static int | ||
993 | mpc52xx_fec_remove(struct platform_device *op) | ||
994 | { | ||
995 | struct net_device *ndev; | ||
996 | struct mpc52xx_fec_priv *priv; | ||
997 | |||
998 | ndev = dev_get_drvdata(&op->dev); | ||
999 | priv = netdev_priv(ndev); | ||
1000 | |||
1001 | unregister_netdev(ndev); | ||
1002 | |||
1003 | if (priv->phy_node) | ||
1004 | of_node_put(priv->phy_node); | ||
1005 | priv->phy_node = NULL; | ||
1006 | |||
1007 | irq_dispose_mapping(ndev->irq); | ||
1008 | |||
1009 | bcom_fec_rx_release(priv->rx_dmatsk); | ||
1010 | bcom_fec_tx_release(priv->tx_dmatsk); | ||
1011 | |||
1012 | iounmap(priv->fec); | ||
1013 | |||
1014 | release_mem_region(ndev->base_addr, sizeof(struct mpc52xx_fec)); | ||
1015 | |||
1016 | free_netdev(ndev); | ||
1017 | |||
1018 | dev_set_drvdata(&op->dev, NULL); | ||
1019 | return 0; | ||
1020 | } | ||
1021 | |||
1022 | #ifdef CONFIG_PM | ||
1023 | static int mpc52xx_fec_of_suspend(struct platform_device *op, pm_message_t state) | ||
1024 | { | ||
1025 | struct net_device *dev = dev_get_drvdata(&op->dev); | ||
1026 | |||
1027 | if (netif_running(dev)) | ||
1028 | mpc52xx_fec_close(dev); | ||
1029 | |||
1030 | return 0; | ||
1031 | } | ||
1032 | |||
1033 | static int mpc52xx_fec_of_resume(struct platform_device *op) | ||
1034 | { | ||
1035 | struct net_device *dev = dev_get_drvdata(&op->dev); | ||
1036 | |||
1037 | mpc52xx_fec_hw_init(dev); | ||
1038 | mpc52xx_fec_reset_stats(dev); | ||
1039 | |||
1040 | if (netif_running(dev)) | ||
1041 | mpc52xx_fec_open(dev); | ||
1042 | |||
1043 | return 0; | ||
1044 | } | ||
1045 | #endif | ||
1046 | |||
1047 | static struct of_device_id mpc52xx_fec_match[] = { | ||
1048 | { .compatible = "fsl,mpc5200b-fec", }, | ||
1049 | { .compatible = "fsl,mpc5200-fec", }, | ||
1050 | { .compatible = "mpc5200-fec", }, | ||
1051 | { } | ||
1052 | }; | ||
1053 | |||
1054 | MODULE_DEVICE_TABLE(of, mpc52xx_fec_match); | ||
1055 | |||
1056 | static struct platform_driver mpc52xx_fec_driver = { | ||
1057 | .driver = { | ||
1058 | .name = DRIVER_NAME, | ||
1059 | .owner = THIS_MODULE, | ||
1060 | .of_match_table = mpc52xx_fec_match, | ||
1061 | }, | ||
1062 | .probe = mpc52xx_fec_probe, | ||
1063 | .remove = mpc52xx_fec_remove, | ||
1064 | #ifdef CONFIG_PM | ||
1065 | .suspend = mpc52xx_fec_of_suspend, | ||
1066 | .resume = mpc52xx_fec_of_resume, | ||
1067 | #endif | ||
1068 | }; | ||
1069 | |||
1070 | |||
1071 | /* ======================================================================== */ | ||
1072 | /* Module */ | ||
1073 | /* ======================================================================== */ | ||
1074 | |||
1075 | static int __init | ||
1076 | mpc52xx_fec_init(void) | ||
1077 | { | ||
1078 | #ifdef CONFIG_FEC_MPC52xx_MDIO | ||
1079 | int ret; | ||
1080 | ret = platform_driver_register(&mpc52xx_fec_mdio_driver); | ||
1081 | if (ret) { | ||
1082 | printk(KERN_ERR DRIVER_NAME ": failed to register mdio driver\n"); | ||
1083 | return ret; | ||
1084 | } | ||
1085 | #endif | ||
1086 | return platform_driver_register(&mpc52xx_fec_driver); | ||
1087 | } | ||
1088 | |||
1089 | static void __exit | ||
1090 | mpc52xx_fec_exit(void) | ||
1091 | { | ||
1092 | platform_driver_unregister(&mpc52xx_fec_driver); | ||
1093 | #ifdef CONFIG_FEC_MPC52xx_MDIO | ||
1094 | platform_driver_unregister(&mpc52xx_fec_mdio_driver); | ||
1095 | #endif | ||
1096 | } | ||
1097 | |||
1098 | |||
1099 | module_init(mpc52xx_fec_init); | ||
1100 | module_exit(mpc52xx_fec_exit); | ||
1101 | |||
1102 | MODULE_LICENSE("GPL"); | ||
1103 | MODULE_AUTHOR("Dale Farnsworth"); | ||
1104 | MODULE_DESCRIPTION("Ethernet driver for the Freescale MPC52xx FEC"); | ||