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1da177e4 LT |
1 | /* |
2 | * | |
3 | * Alchemy Au1x00 ethernet driver | |
4 | * | |
5 | * Copyright 2001,2002,2003 MontaVista Software Inc. | |
6 | * Copyright 2002 TimeSys Corp. | |
7 | * Added ethtool/mii-tool support, | |
8 | * Copyright 2004 Matt Porter <mporter@kernel.crashing.org> | |
9 | * Update: 2004 Bjoern Riemer, riemer@fokus.fraunhofer.de | |
10 | * or riemer@riemer-nt.de: fixed the link beat detection with | |
11 | * ioctls (SIOCGMIIPHY) | |
12 | * Author: MontaVista Software, Inc. | |
13 | * ppopov@mvista.com or source@mvista.com | |
14 | * | |
15 | * ######################################################################## | |
16 | * | |
17 | * This program is free software; you can distribute it and/or modify it | |
18 | * under the terms of the GNU General Public License (Version 2) as | |
19 | * published by the Free Software Foundation. | |
20 | * | |
21 | * This program is distributed in the hope it will be useful, but WITHOUT | |
22 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
23 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
24 | * for more details. | |
25 | * | |
26 | * You should have received a copy of the GNU General Public License along | |
27 | * with this program; if not, write to the Free Software Foundation, Inc., | |
28 | * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. | |
29 | * | |
30 | * ######################################################################## | |
31 | * | |
32 | * | |
33 | */ | |
34 | ||
35 | #include <linux/module.h> | |
36 | #include <linux/kernel.h> | |
37 | #include <linux/sched.h> | |
38 | #include <linux/string.h> | |
39 | #include <linux/timer.h> | |
40 | #include <linux/errno.h> | |
41 | #include <linux/in.h> | |
42 | #include <linux/ioport.h> | |
43 | #include <linux/bitops.h> | |
44 | #include <linux/slab.h> | |
45 | #include <linux/interrupt.h> | |
46 | #include <linux/pci.h> | |
47 | #include <linux/init.h> | |
48 | #include <linux/netdevice.h> | |
49 | #include <linux/etherdevice.h> | |
50 | #include <linux/ethtool.h> | |
51 | #include <linux/mii.h> | |
52 | #include <linux/skbuff.h> | |
53 | #include <linux/delay.h> | |
54 | #include <asm/mipsregs.h> | |
55 | #include <asm/irq.h> | |
56 | #include <asm/io.h> | |
57 | #include <asm/processor.h> | |
58 | ||
59 | #include <asm/mach-au1x00/au1000.h> | |
60 | #include <asm/cpu.h> | |
61 | #include "au1000_eth.h" | |
62 | ||
63 | #ifdef AU1000_ETH_DEBUG | |
64 | static int au1000_debug = 5; | |
65 | #else | |
66 | static int au1000_debug = 3; | |
67 | #endif | |
68 | ||
69 | #define DRV_NAME "au1000eth" | |
70 | #define DRV_VERSION "1.5" | |
71 | #define DRV_AUTHOR "Pete Popov <ppopov@embeddedalley.com>" | |
72 | #define DRV_DESC "Au1xxx on-chip Ethernet driver" | |
73 | ||
74 | MODULE_AUTHOR(DRV_AUTHOR); | |
75 | MODULE_DESCRIPTION(DRV_DESC); | |
76 | MODULE_LICENSE("GPL"); | |
77 | ||
78 | // prototypes | |
79 | static void hard_stop(struct net_device *); | |
80 | static void enable_rx_tx(struct net_device *dev); | |
81 | static struct net_device * au1000_probe(u32 ioaddr, int irq, int port_num); | |
82 | static int au1000_init(struct net_device *); | |
83 | static int au1000_open(struct net_device *); | |
84 | static int au1000_close(struct net_device *); | |
85 | static int au1000_tx(struct sk_buff *, struct net_device *); | |
86 | static int au1000_rx(struct net_device *); | |
87 | static irqreturn_t au1000_interrupt(int, void *, struct pt_regs *); | |
88 | static void au1000_tx_timeout(struct net_device *); | |
89 | static int au1000_set_config(struct net_device *dev, struct ifmap *map); | |
90 | static void set_rx_mode(struct net_device *); | |
91 | static struct net_device_stats *au1000_get_stats(struct net_device *); | |
92 | static inline void update_tx_stats(struct net_device *, u32, u32); | |
93 | static inline void update_rx_stats(struct net_device *, u32); | |
94 | static void au1000_timer(unsigned long); | |
95 | static int au1000_ioctl(struct net_device *, struct ifreq *, int); | |
96 | static int mdio_read(struct net_device *, int, int); | |
97 | static void mdio_write(struct net_device *, int, int, u16); | |
98 | static void dump_mii(struct net_device *dev, int phy_id); | |
99 | ||
100 | // externs | |
101 | extern void ack_rise_edge_irq(unsigned int); | |
102 | extern int get_ethernet_addr(char *ethernet_addr); | |
103 | extern void str2eaddr(unsigned char *ea, unsigned char *str); | |
104 | extern char * __init prom_getcmdline(void); | |
105 | ||
106 | /* | |
107 | * Theory of operation | |
108 | * | |
109 | * The Au1000 MACs use a simple rx and tx descriptor ring scheme. | |
110 | * There are four receive and four transmit descriptors. These | |
111 | * descriptors are not in memory; rather, they are just a set of | |
112 | * hardware registers. | |
113 | * | |
114 | * Since the Au1000 has a coherent data cache, the receive and | |
115 | * transmit buffers are allocated from the KSEG0 segment. The | |
116 | * hardware registers, however, are still mapped at KSEG1 to | |
117 | * make sure there's no out-of-order writes, and that all writes | |
118 | * complete immediately. | |
119 | */ | |
120 | ||
121 | /* These addresses are only used if yamon doesn't tell us what | |
122 | * the mac address is, and the mac address is not passed on the | |
123 | * command line. | |
124 | */ | |
125 | static unsigned char au1000_mac_addr[6] __devinitdata = { | |
126 | 0x00, 0x50, 0xc2, 0x0c, 0x30, 0x00 | |
127 | }; | |
128 | ||
129 | #define nibswap(x) ((((x) >> 4) & 0x0f) | (((x) << 4) & 0xf0)) | |
130 | #define RUN_AT(x) (jiffies + (x)) | |
131 | ||
132 | // For reading/writing 32-bit words from/to DMA memory | |
133 | #define cpu_to_dma32 cpu_to_be32 | |
134 | #define dma32_to_cpu be32_to_cpu | |
135 | ||
136 | struct au1000_private *au_macs[NUM_ETH_INTERFACES]; | |
137 | ||
138 | /* FIXME | |
139 | * All of the PHY code really should be detached from the MAC | |
140 | * code. | |
141 | */ | |
142 | ||
143 | /* Default advertise */ | |
144 | #define GENMII_DEFAULT_ADVERTISE \ | |
145 | ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | \ | |
146 | ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | \ | |
147 | ADVERTISED_Autoneg | |
148 | ||
149 | #define GENMII_DEFAULT_FEATURES \ | |
150 | SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | \ | |
151 | SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | \ | |
152 | SUPPORTED_Autoneg | |
153 | ||
154 | static char *phy_link[] = | |
155 | { "unknown", | |
156 | "10Base2", "10BaseT", | |
157 | "AUI", | |
158 | "100BaseT", "100BaseTX", "100BaseFX" | |
159 | }; | |
160 | ||
161 | int bcm_5201_init(struct net_device *dev, int phy_addr) | |
162 | { | |
163 | s16 data; | |
164 | ||
165 | /* Stop auto-negotiation */ | |
166 | data = mdio_read(dev, phy_addr, MII_CONTROL); | |
167 | mdio_write(dev, phy_addr, MII_CONTROL, data & ~MII_CNTL_AUTO); | |
168 | ||
169 | /* Set advertisement to 10/100 and Half/Full duplex | |
170 | * (full capabilities) */ | |
171 | data = mdio_read(dev, phy_addr, MII_ANADV); | |
172 | data |= MII_NWAY_TX | MII_NWAY_TX_FDX | MII_NWAY_T_FDX | MII_NWAY_T; | |
173 | mdio_write(dev, phy_addr, MII_ANADV, data); | |
174 | ||
175 | /* Restart auto-negotiation */ | |
176 | data = mdio_read(dev, phy_addr, MII_CONTROL); | |
177 | data |= MII_CNTL_RST_AUTO | MII_CNTL_AUTO; | |
178 | mdio_write(dev, phy_addr, MII_CONTROL, data); | |
179 | ||
180 | if (au1000_debug > 4) | |
181 | dump_mii(dev, phy_addr); | |
182 | return 0; | |
183 | } | |
184 | ||
185 | int bcm_5201_reset(struct net_device *dev, int phy_addr) | |
186 | { | |
187 | s16 mii_control, timeout; | |
188 | ||
189 | mii_control = mdio_read(dev, phy_addr, MII_CONTROL); | |
190 | mdio_write(dev, phy_addr, MII_CONTROL, mii_control | MII_CNTL_RESET); | |
191 | mdelay(1); | |
192 | for (timeout = 100; timeout > 0; --timeout) { | |
193 | mii_control = mdio_read(dev, phy_addr, MII_CONTROL); | |
194 | if ((mii_control & MII_CNTL_RESET) == 0) | |
195 | break; | |
196 | mdelay(1); | |
197 | } | |
198 | if (mii_control & MII_CNTL_RESET) { | |
199 | printk(KERN_ERR "%s PHY reset timeout !\n", dev->name); | |
200 | return -1; | |
201 | } | |
202 | return 0; | |
203 | } | |
204 | ||
205 | int | |
206 | bcm_5201_status(struct net_device *dev, int phy_addr, u16 *link, u16 *speed) | |
207 | { | |
208 | u16 mii_data; | |
209 | struct au1000_private *aup; | |
210 | ||
211 | if (!dev) { | |
212 | printk(KERN_ERR "bcm_5201_status error: NULL dev\n"); | |
213 | return -1; | |
214 | } | |
215 | aup = (struct au1000_private *) dev->priv; | |
216 | ||
217 | mii_data = mdio_read(dev, aup->phy_addr, MII_STATUS); | |
218 | if (mii_data & MII_STAT_LINK) { | |
219 | *link = 1; | |
220 | mii_data = mdio_read(dev, aup->phy_addr, MII_AUX_CNTRL); | |
221 | if (mii_data & MII_AUX_100) { | |
222 | if (mii_data & MII_AUX_FDX) { | |
223 | *speed = IF_PORT_100BASEFX; | |
224 | dev->if_port = IF_PORT_100BASEFX; | |
225 | } | |
226 | else { | |
227 | *speed = IF_PORT_100BASETX; | |
228 | dev->if_port = IF_PORT_100BASETX; | |
229 | } | |
230 | } | |
231 | else { | |
232 | *speed = IF_PORT_10BASET; | |
233 | dev->if_port = IF_PORT_10BASET; | |
234 | } | |
235 | ||
236 | } | |
237 | else { | |
238 | *link = 0; | |
239 | *speed = 0; | |
240 | dev->if_port = IF_PORT_UNKNOWN; | |
241 | } | |
242 | return 0; | |
243 | } | |
244 | ||
245 | int lsi_80227_init(struct net_device *dev, int phy_addr) | |
246 | { | |
247 | if (au1000_debug > 4) | |
248 | printk("lsi_80227_init\n"); | |
249 | ||
250 | /* restart auto-negotiation */ | |
251 | mdio_write(dev, phy_addr, MII_CONTROL, | |
252 | MII_CNTL_F100 | MII_CNTL_AUTO | MII_CNTL_RST_AUTO); // | MII_CNTL_FDX); | |
253 | mdelay(1); | |
254 | ||
255 | /* set up LEDs to correct display */ | |
256 | #ifdef CONFIG_MIPS_MTX1 | |
257 | mdio_write(dev, phy_addr, 17, 0xff80); | |
258 | #else | |
259 | mdio_write(dev, phy_addr, 17, 0xffc0); | |
260 | #endif | |
261 | ||
262 | if (au1000_debug > 4) | |
263 | dump_mii(dev, phy_addr); | |
264 | return 0; | |
265 | } | |
266 | ||
267 | int lsi_80227_reset(struct net_device *dev, int phy_addr) | |
268 | { | |
269 | s16 mii_control, timeout; | |
270 | ||
271 | if (au1000_debug > 4) { | |
272 | printk("lsi_80227_reset\n"); | |
273 | dump_mii(dev, phy_addr); | |
274 | } | |
275 | ||
276 | mii_control = mdio_read(dev, phy_addr, MII_CONTROL); | |
277 | mdio_write(dev, phy_addr, MII_CONTROL, mii_control | MII_CNTL_RESET); | |
278 | mdelay(1); | |
279 | for (timeout = 100; timeout > 0; --timeout) { | |
280 | mii_control = mdio_read(dev, phy_addr, MII_CONTROL); | |
281 | if ((mii_control & MII_CNTL_RESET) == 0) | |
282 | break; | |
283 | mdelay(1); | |
284 | } | |
285 | if (mii_control & MII_CNTL_RESET) { | |
286 | printk(KERN_ERR "%s PHY reset timeout !\n", dev->name); | |
287 | return -1; | |
288 | } | |
289 | return 0; | |
290 | } | |
291 | ||
292 | int | |
293 | lsi_80227_status(struct net_device *dev, int phy_addr, u16 *link, u16 *speed) | |
294 | { | |
295 | u16 mii_data; | |
296 | struct au1000_private *aup; | |
297 | ||
298 | if (!dev) { | |
299 | printk(KERN_ERR "lsi_80227_status error: NULL dev\n"); | |
300 | return -1; | |
301 | } | |
302 | aup = (struct au1000_private *) dev->priv; | |
303 | ||
304 | mii_data = mdio_read(dev, aup->phy_addr, MII_STATUS); | |
305 | if (mii_data & MII_STAT_LINK) { | |
306 | *link = 1; | |
307 | mii_data = mdio_read(dev, aup->phy_addr, MII_LSI_PHY_STAT); | |
308 | if (mii_data & MII_LSI_PHY_STAT_SPD) { | |
309 | if (mii_data & MII_LSI_PHY_STAT_FDX) { | |
310 | *speed = IF_PORT_100BASEFX; | |
311 | dev->if_port = IF_PORT_100BASEFX; | |
312 | } | |
313 | else { | |
314 | *speed = IF_PORT_100BASETX; | |
315 | dev->if_port = IF_PORT_100BASETX; | |
316 | } | |
317 | } | |
318 | else { | |
319 | *speed = IF_PORT_10BASET; | |
320 | dev->if_port = IF_PORT_10BASET; | |
321 | } | |
322 | ||
323 | } | |
324 | else { | |
325 | *link = 0; | |
326 | *speed = 0; | |
327 | dev->if_port = IF_PORT_UNKNOWN; | |
328 | } | |
329 | return 0; | |
330 | } | |
331 | ||
332 | int am79c901_init(struct net_device *dev, int phy_addr) | |
333 | { | |
334 | printk("am79c901_init\n"); | |
335 | return 0; | |
336 | } | |
337 | ||
338 | int am79c901_reset(struct net_device *dev, int phy_addr) | |
339 | { | |
340 | printk("am79c901_reset\n"); | |
341 | return 0; | |
342 | } | |
343 | ||
344 | int | |
345 | am79c901_status(struct net_device *dev, int phy_addr, u16 *link, u16 *speed) | |
346 | { | |
347 | return 0; | |
348 | } | |
349 | ||
350 | int am79c874_init(struct net_device *dev, int phy_addr) | |
351 | { | |
352 | s16 data; | |
353 | ||
354 | /* 79c874 has quit resembled bit assignments to BCM5201 */ | |
355 | if (au1000_debug > 4) | |
356 | printk("am79c847_init\n"); | |
357 | ||
358 | /* Stop auto-negotiation */ | |
359 | data = mdio_read(dev, phy_addr, MII_CONTROL); | |
360 | mdio_write(dev, phy_addr, MII_CONTROL, data & ~MII_CNTL_AUTO); | |
361 | ||
362 | /* Set advertisement to 10/100 and Half/Full duplex | |
363 | * (full capabilities) */ | |
364 | data = mdio_read(dev, phy_addr, MII_ANADV); | |
365 | data |= MII_NWAY_TX | MII_NWAY_TX_FDX | MII_NWAY_T_FDX | MII_NWAY_T; | |
366 | mdio_write(dev, phy_addr, MII_ANADV, data); | |
367 | ||
368 | /* Restart auto-negotiation */ | |
369 | data = mdio_read(dev, phy_addr, MII_CONTROL); | |
370 | data |= MII_CNTL_RST_AUTO | MII_CNTL_AUTO; | |
371 | ||
372 | mdio_write(dev, phy_addr, MII_CONTROL, data); | |
373 | ||
374 | if (au1000_debug > 4) dump_mii(dev, phy_addr); | |
375 | return 0; | |
376 | } | |
377 | ||
378 | int am79c874_reset(struct net_device *dev, int phy_addr) | |
379 | { | |
380 | s16 mii_control, timeout; | |
381 | ||
382 | if (au1000_debug > 4) | |
383 | printk("am79c874_reset\n"); | |
384 | ||
385 | mii_control = mdio_read(dev, phy_addr, MII_CONTROL); | |
386 | mdio_write(dev, phy_addr, MII_CONTROL, mii_control | MII_CNTL_RESET); | |
387 | mdelay(1); | |
388 | for (timeout = 100; timeout > 0; --timeout) { | |
389 | mii_control = mdio_read(dev, phy_addr, MII_CONTROL); | |
390 | if ((mii_control & MII_CNTL_RESET) == 0) | |
391 | break; | |
392 | mdelay(1); | |
393 | } | |
394 | if (mii_control & MII_CNTL_RESET) { | |
395 | printk(KERN_ERR "%s PHY reset timeout !\n", dev->name); | |
396 | return -1; | |
397 | } | |
398 | return 0; | |
399 | } | |
400 | ||
401 | int | |
402 | am79c874_status(struct net_device *dev, int phy_addr, u16 *link, u16 *speed) | |
403 | { | |
404 | u16 mii_data; | |
405 | struct au1000_private *aup; | |
406 | ||
407 | // printk("am79c874_status\n"); | |
408 | if (!dev) { | |
409 | printk(KERN_ERR "am79c874_status error: NULL dev\n"); | |
410 | return -1; | |
411 | } | |
412 | ||
413 | aup = (struct au1000_private *) dev->priv; | |
414 | mii_data = mdio_read(dev, aup->phy_addr, MII_STATUS); | |
415 | ||
416 | if (mii_data & MII_STAT_LINK) { | |
417 | *link = 1; | |
418 | mii_data = mdio_read(dev, aup->phy_addr, MII_AMD_PHY_STAT); | |
419 | if (mii_data & MII_AMD_PHY_STAT_SPD) { | |
420 | if (mii_data & MII_AMD_PHY_STAT_FDX) { | |
421 | *speed = IF_PORT_100BASEFX; | |
422 | dev->if_port = IF_PORT_100BASEFX; | |
423 | } | |
424 | else { | |
425 | *speed = IF_PORT_100BASETX; | |
426 | dev->if_port = IF_PORT_100BASETX; | |
427 | } | |
428 | } | |
429 | else { | |
430 | *speed = IF_PORT_10BASET; | |
431 | dev->if_port = IF_PORT_10BASET; | |
432 | } | |
433 | ||
434 | } | |
435 | else { | |
436 | *link = 0; | |
437 | *speed = 0; | |
438 | dev->if_port = IF_PORT_UNKNOWN; | |
439 | } | |
440 | return 0; | |
441 | } | |
442 | ||
443 | int lxt971a_init(struct net_device *dev, int phy_addr) | |
444 | { | |
445 | if (au1000_debug > 4) | |
446 | printk("lxt971a_init\n"); | |
447 | ||
448 | /* restart auto-negotiation */ | |
449 | mdio_write(dev, phy_addr, MII_CONTROL, | |
450 | MII_CNTL_F100 | MII_CNTL_AUTO | MII_CNTL_RST_AUTO | MII_CNTL_FDX); | |
451 | ||
452 | /* set up LEDs to correct display */ | |
453 | mdio_write(dev, phy_addr, 20, 0x0422); | |
454 | ||
455 | if (au1000_debug > 4) | |
456 | dump_mii(dev, phy_addr); | |
457 | return 0; | |
458 | } | |
459 | ||
460 | int lxt971a_reset(struct net_device *dev, int phy_addr) | |
461 | { | |
462 | s16 mii_control, timeout; | |
463 | ||
464 | if (au1000_debug > 4) { | |
465 | printk("lxt971a_reset\n"); | |
466 | dump_mii(dev, phy_addr); | |
467 | } | |
468 | ||
469 | mii_control = mdio_read(dev, phy_addr, MII_CONTROL); | |
470 | mdio_write(dev, phy_addr, MII_CONTROL, mii_control | MII_CNTL_RESET); | |
471 | mdelay(1); | |
472 | for (timeout = 100; timeout > 0; --timeout) { | |
473 | mii_control = mdio_read(dev, phy_addr, MII_CONTROL); | |
474 | if ((mii_control & MII_CNTL_RESET) == 0) | |
475 | break; | |
476 | mdelay(1); | |
477 | } | |
478 | if (mii_control & MII_CNTL_RESET) { | |
479 | printk(KERN_ERR "%s PHY reset timeout !\n", dev->name); | |
480 | return -1; | |
481 | } | |
482 | return 0; | |
483 | } | |
484 | ||
485 | int | |
486 | lxt971a_status(struct net_device *dev, int phy_addr, u16 *link, u16 *speed) | |
487 | { | |
488 | u16 mii_data; | |
489 | struct au1000_private *aup; | |
490 | ||
491 | if (!dev) { | |
492 | printk(KERN_ERR "lxt971a_status error: NULL dev\n"); | |
493 | return -1; | |
494 | } | |
495 | aup = (struct au1000_private *) dev->priv; | |
496 | ||
497 | mii_data = mdio_read(dev, aup->phy_addr, MII_STATUS); | |
498 | if (mii_data & MII_STAT_LINK) { | |
499 | *link = 1; | |
500 | mii_data = mdio_read(dev, aup->phy_addr, MII_INTEL_PHY_STAT); | |
501 | if (mii_data & MII_INTEL_PHY_STAT_SPD) { | |
502 | if (mii_data & MII_INTEL_PHY_STAT_FDX) { | |
503 | *speed = IF_PORT_100BASEFX; | |
504 | dev->if_port = IF_PORT_100BASEFX; | |
505 | } | |
506 | else { | |
507 | *speed = IF_PORT_100BASETX; | |
508 | dev->if_port = IF_PORT_100BASETX; | |
509 | } | |
510 | } | |
511 | else { | |
512 | *speed = IF_PORT_10BASET; | |
513 | dev->if_port = IF_PORT_10BASET; | |
514 | } | |
515 | ||
516 | } | |
517 | else { | |
518 | *link = 0; | |
519 | *speed = 0; | |
520 | dev->if_port = IF_PORT_UNKNOWN; | |
521 | } | |
522 | return 0; | |
523 | } | |
524 | ||
525 | int ks8995m_init(struct net_device *dev, int phy_addr) | |
526 | { | |
527 | s16 data; | |
528 | ||
529 | // printk("ks8995m_init\n"); | |
530 | /* Stop auto-negotiation */ | |
531 | data = mdio_read(dev, phy_addr, MII_CONTROL); | |
532 | mdio_write(dev, phy_addr, MII_CONTROL, data & ~MII_CNTL_AUTO); | |
533 | ||
534 | /* Set advertisement to 10/100 and Half/Full duplex | |
535 | * (full capabilities) */ | |
536 | data = mdio_read(dev, phy_addr, MII_ANADV); | |
537 | data |= MII_NWAY_TX | MII_NWAY_TX_FDX | MII_NWAY_T_FDX | MII_NWAY_T; | |
538 | mdio_write(dev, phy_addr, MII_ANADV, data); | |
539 | ||
540 | /* Restart auto-negotiation */ | |
541 | data = mdio_read(dev, phy_addr, MII_CONTROL); | |
542 | data |= MII_CNTL_RST_AUTO | MII_CNTL_AUTO; | |
543 | mdio_write(dev, phy_addr, MII_CONTROL, data); | |
544 | ||
545 | if (au1000_debug > 4) dump_mii(dev, phy_addr); | |
546 | ||
547 | return 0; | |
548 | } | |
549 | ||
550 | int ks8995m_reset(struct net_device *dev, int phy_addr) | |
551 | { | |
552 | s16 mii_control, timeout; | |
553 | ||
554 | // printk("ks8995m_reset\n"); | |
555 | mii_control = mdio_read(dev, phy_addr, MII_CONTROL); | |
556 | mdio_write(dev, phy_addr, MII_CONTROL, mii_control | MII_CNTL_RESET); | |
557 | mdelay(1); | |
558 | for (timeout = 100; timeout > 0; --timeout) { | |
559 | mii_control = mdio_read(dev, phy_addr, MII_CONTROL); | |
560 | if ((mii_control & MII_CNTL_RESET) == 0) | |
561 | break; | |
562 | mdelay(1); | |
563 | } | |
564 | if (mii_control & MII_CNTL_RESET) { | |
565 | printk(KERN_ERR "%s PHY reset timeout !\n", dev->name); | |
566 | return -1; | |
567 | } | |
568 | return 0; | |
569 | } | |
570 | ||
571 | int ks8995m_status(struct net_device *dev, int phy_addr, u16 *link, u16 *speed) | |
572 | { | |
573 | u16 mii_data; | |
574 | struct au1000_private *aup; | |
575 | ||
576 | if (!dev) { | |
577 | printk(KERN_ERR "ks8995m_status error: NULL dev\n"); | |
578 | return -1; | |
579 | } | |
580 | aup = (struct au1000_private *) dev->priv; | |
581 | ||
582 | mii_data = mdio_read(dev, aup->phy_addr, MII_STATUS); | |
583 | if (mii_data & MII_STAT_LINK) { | |
584 | *link = 1; | |
585 | mii_data = mdio_read(dev, aup->phy_addr, MII_AUX_CNTRL); | |
586 | if (mii_data & MII_AUX_100) { | |
587 | if (mii_data & MII_AUX_FDX) { | |
588 | *speed = IF_PORT_100BASEFX; | |
589 | dev->if_port = IF_PORT_100BASEFX; | |
590 | } | |
591 | else { | |
592 | *speed = IF_PORT_100BASETX; | |
593 | dev->if_port = IF_PORT_100BASETX; | |
594 | } | |
595 | } | |
596 | else { | |
597 | *speed = IF_PORT_10BASET; | |
598 | dev->if_port = IF_PORT_10BASET; | |
599 | } | |
600 | ||
601 | } | |
602 | else { | |
603 | *link = 0; | |
604 | *speed = 0; | |
605 | dev->if_port = IF_PORT_UNKNOWN; | |
606 | } | |
607 | return 0; | |
608 | } | |
609 | ||
610 | int | |
611 | smsc_83C185_init (struct net_device *dev, int phy_addr) | |
612 | { | |
613 | s16 data; | |
614 | ||
615 | if (au1000_debug > 4) | |
616 | printk("smsc_83C185_init\n"); | |
617 | ||
618 | /* Stop auto-negotiation */ | |
619 | data = mdio_read(dev, phy_addr, MII_CONTROL); | |
620 | mdio_write(dev, phy_addr, MII_CONTROL, data & ~MII_CNTL_AUTO); | |
621 | ||
622 | /* Set advertisement to 10/100 and Half/Full duplex | |
623 | * (full capabilities) */ | |
624 | data = mdio_read(dev, phy_addr, MII_ANADV); | |
625 | data |= MII_NWAY_TX | MII_NWAY_TX_FDX | MII_NWAY_T_FDX | MII_NWAY_T; | |
626 | mdio_write(dev, phy_addr, MII_ANADV, data); | |
627 | ||
628 | /* Restart auto-negotiation */ | |
629 | data = mdio_read(dev, phy_addr, MII_CONTROL); | |
630 | data |= MII_CNTL_RST_AUTO | MII_CNTL_AUTO; | |
631 | ||
632 | mdio_write(dev, phy_addr, MII_CONTROL, data); | |
633 | ||
634 | if (au1000_debug > 4) dump_mii(dev, phy_addr); | |
635 | return 0; | |
636 | } | |
637 | ||
638 | int | |
639 | smsc_83C185_reset (struct net_device *dev, int phy_addr) | |
640 | { | |
641 | s16 mii_control, timeout; | |
642 | ||
643 | if (au1000_debug > 4) | |
644 | printk("smsc_83C185_reset\n"); | |
645 | ||
646 | mii_control = mdio_read(dev, phy_addr, MII_CONTROL); | |
647 | mdio_write(dev, phy_addr, MII_CONTROL, mii_control | MII_CNTL_RESET); | |
648 | mdelay(1); | |
649 | for (timeout = 100; timeout > 0; --timeout) { | |
650 | mii_control = mdio_read(dev, phy_addr, MII_CONTROL); | |
651 | if ((mii_control & MII_CNTL_RESET) == 0) | |
652 | break; | |
653 | mdelay(1); | |
654 | } | |
655 | if (mii_control & MII_CNTL_RESET) { | |
656 | printk(KERN_ERR "%s PHY reset timeout !\n", dev->name); | |
657 | return -1; | |
658 | } | |
659 | return 0; | |
660 | } | |
661 | ||
662 | int | |
663 | smsc_83C185_status (struct net_device *dev, int phy_addr, u16 *link, u16 *speed) | |
664 | { | |
665 | u16 mii_data; | |
666 | struct au1000_private *aup; | |
667 | ||
668 | if (!dev) { | |
669 | printk(KERN_ERR "smsc_83C185_status error: NULL dev\n"); | |
670 | return -1; | |
671 | } | |
672 | ||
673 | aup = (struct au1000_private *) dev->priv; | |
674 | mii_data = mdio_read(dev, aup->phy_addr, MII_STATUS); | |
675 | ||
676 | if (mii_data & MII_STAT_LINK) { | |
677 | *link = 1; | |
678 | mii_data = mdio_read(dev, aup->phy_addr, 0x1f); | |
679 | if (mii_data & (1<<3)) { | |
680 | if (mii_data & (1<<4)) { | |
681 | *speed = IF_PORT_100BASEFX; | |
682 | dev->if_port = IF_PORT_100BASEFX; | |
683 | } | |
684 | else { | |
685 | *speed = IF_PORT_100BASETX; | |
686 | dev->if_port = IF_PORT_100BASETX; | |
687 | } | |
688 | } | |
689 | else { | |
690 | *speed = IF_PORT_10BASET; | |
691 | dev->if_port = IF_PORT_10BASET; | |
692 | } | |
693 | } | |
694 | else { | |
695 | *link = 0; | |
696 | *speed = 0; | |
697 | dev->if_port = IF_PORT_UNKNOWN; | |
698 | } | |
699 | return 0; | |
700 | } | |
701 | ||
702 | ||
703 | #ifdef CONFIG_MIPS_BOSPORUS | |
704 | int stub_init(struct net_device *dev, int phy_addr) | |
705 | { | |
706 | //printk("PHY stub_init\n"); | |
707 | return 0; | |
708 | } | |
709 | ||
710 | int stub_reset(struct net_device *dev, int phy_addr) | |
711 | { | |
712 | //printk("PHY stub_reset\n"); | |
713 | return 0; | |
714 | } | |
715 | ||
716 | int | |
717 | stub_status(struct net_device *dev, int phy_addr, u16 *link, u16 *speed) | |
718 | { | |
719 | //printk("PHY stub_status\n"); | |
720 | *link = 1; | |
721 | /* hmmm, revisit */ | |
722 | *speed = IF_PORT_100BASEFX; | |
723 | dev->if_port = IF_PORT_100BASEFX; | |
724 | return 0; | |
725 | } | |
726 | #endif | |
727 | ||
728 | struct phy_ops bcm_5201_ops = { | |
729 | bcm_5201_init, | |
730 | bcm_5201_reset, | |
731 | bcm_5201_status, | |
732 | }; | |
733 | ||
734 | struct phy_ops am79c874_ops = { | |
735 | am79c874_init, | |
736 | am79c874_reset, | |
737 | am79c874_status, | |
738 | }; | |
739 | ||
740 | struct phy_ops am79c901_ops = { | |
741 | am79c901_init, | |
742 | am79c901_reset, | |
743 | am79c901_status, | |
744 | }; | |
745 | ||
746 | struct phy_ops lsi_80227_ops = { | |
747 | lsi_80227_init, | |
748 | lsi_80227_reset, | |
749 | lsi_80227_status, | |
750 | }; | |
751 | ||
752 | struct phy_ops lxt971a_ops = { | |
753 | lxt971a_init, | |
754 | lxt971a_reset, | |
755 | lxt971a_status, | |
756 | }; | |
757 | ||
758 | struct phy_ops ks8995m_ops = { | |
759 | ks8995m_init, | |
760 | ks8995m_reset, | |
761 | ks8995m_status, | |
762 | }; | |
763 | ||
764 | struct phy_ops smsc_83C185_ops = { | |
765 | smsc_83C185_init, | |
766 | smsc_83C185_reset, | |
767 | smsc_83C185_status, | |
768 | }; | |
769 | ||
770 | #ifdef CONFIG_MIPS_BOSPORUS | |
771 | struct phy_ops stub_ops = { | |
772 | stub_init, | |
773 | stub_reset, | |
774 | stub_status, | |
775 | }; | |
776 | #endif | |
777 | ||
778 | static struct mii_chip_info { | |
779 | const char * name; | |
780 | u16 phy_id0; | |
781 | u16 phy_id1; | |
782 | struct phy_ops *phy_ops; | |
783 | int dual_phy; | |
784 | } mii_chip_table[] = { | |
785 | {"Broadcom BCM5201 10/100 BaseT PHY",0x0040,0x6212, &bcm_5201_ops,0}, | |
786 | {"Broadcom BCM5221 10/100 BaseT PHY",0x0040,0x61e4, &bcm_5201_ops,0}, | |
787 | {"Broadcom BCM5222 10/100 BaseT PHY",0x0040,0x6322, &bcm_5201_ops,1}, | |
788 | {"AMD 79C901 HomePNA PHY",0x0000,0x35c8, &am79c901_ops,0}, | |
789 | {"AMD 79C874 10/100 BaseT PHY",0x0022,0x561b, &am79c874_ops,0}, | |
790 | {"LSI 80227 10/100 BaseT PHY",0x0016,0xf840, &lsi_80227_ops,0}, | |
791 | {"Intel LXT971A Dual Speed PHY",0x0013,0x78e2, &lxt971a_ops,0}, | |
792 | {"Kendin KS8995M 10/100 BaseT PHY",0x0022,0x1450, &ks8995m_ops,0}, | |
793 | {"SMSC LAN83C185 10/100 BaseT PHY",0x0007,0xc0a3, &smsc_83C185_ops,0}, | |
794 | #ifdef CONFIG_MIPS_BOSPORUS | |
795 | {"Stub", 0x1234, 0x5678, &stub_ops }, | |
796 | #endif | |
797 | {0,}, | |
798 | }; | |
799 | ||
800 | static int mdio_read(struct net_device *dev, int phy_id, int reg) | |
801 | { | |
802 | struct au1000_private *aup = (struct au1000_private *) dev->priv; | |
803 | volatile u32 *mii_control_reg; | |
804 | volatile u32 *mii_data_reg; | |
805 | u32 timedout = 20; | |
806 | u32 mii_control; | |
807 | ||
808 | #ifdef CONFIG_BCM5222_DUAL_PHY | |
809 | /* First time we probe, it's for the mac0 phy. | |
810 | * Since we haven't determined yet that we have a dual phy, | |
811 | * aup->mii->mii_control_reg won't be setup and we'll | |
812 | * default to the else statement. | |
813 | * By the time we probe for the mac1 phy, the mii_control_reg | |
814 | * will be setup to be the address of the mac0 phy control since | |
815 | * both phys are controlled through mac0. | |
816 | */ | |
817 | if (aup->mii && aup->mii->mii_control_reg) { | |
818 | mii_control_reg = aup->mii->mii_control_reg; | |
819 | mii_data_reg = aup->mii->mii_data_reg; | |
820 | } | |
821 | else if (au_macs[0]->mii && au_macs[0]->mii->mii_control_reg) { | |
822 | /* assume both phys are controlled through mac0 */ | |
823 | mii_control_reg = au_macs[0]->mii->mii_control_reg; | |
824 | mii_data_reg = au_macs[0]->mii->mii_data_reg; | |
825 | } | |
826 | else | |
827 | #endif | |
828 | { | |
829 | /* default control and data reg addresses */ | |
830 | mii_control_reg = &aup->mac->mii_control; | |
831 | mii_data_reg = &aup->mac->mii_data; | |
832 | } | |
833 | ||
834 | while (*mii_control_reg & MAC_MII_BUSY) { | |
835 | mdelay(1); | |
836 | if (--timedout == 0) { | |
837 | printk(KERN_ERR "%s: read_MII busy timeout!!\n", | |
838 | dev->name); | |
839 | return -1; | |
840 | } | |
841 | } | |
842 | ||
843 | mii_control = MAC_SET_MII_SELECT_REG(reg) | | |
844 | MAC_SET_MII_SELECT_PHY(phy_id) | MAC_MII_READ; | |
845 | ||
846 | *mii_control_reg = mii_control; | |
847 | ||
848 | timedout = 20; | |
849 | while (*mii_control_reg & MAC_MII_BUSY) { | |
850 | mdelay(1); | |
851 | if (--timedout == 0) { | |
852 | printk(KERN_ERR "%s: mdio_read busy timeout!!\n", | |
853 | dev->name); | |
854 | return -1; | |
855 | } | |
856 | } | |
857 | return (int)*mii_data_reg; | |
858 | } | |
859 | ||
860 | static void mdio_write(struct net_device *dev, int phy_id, int reg, u16 value) | |
861 | { | |
862 | struct au1000_private *aup = (struct au1000_private *) dev->priv; | |
863 | volatile u32 *mii_control_reg; | |
864 | volatile u32 *mii_data_reg; | |
865 | u32 timedout = 20; | |
866 | u32 mii_control; | |
867 | ||
868 | #ifdef CONFIG_BCM5222_DUAL_PHY | |
869 | if (aup->mii && aup->mii->mii_control_reg) { | |
870 | mii_control_reg = aup->mii->mii_control_reg; | |
871 | mii_data_reg = aup->mii->mii_data_reg; | |
872 | } | |
873 | else if (au_macs[0]->mii && au_macs[0]->mii->mii_control_reg) { | |
874 | /* assume both phys are controlled through mac0 */ | |
875 | mii_control_reg = au_macs[0]->mii->mii_control_reg; | |
876 | mii_data_reg = au_macs[0]->mii->mii_data_reg; | |
877 | } | |
878 | else | |
879 | #endif | |
880 | { | |
881 | /* default control and data reg addresses */ | |
882 | mii_control_reg = &aup->mac->mii_control; | |
883 | mii_data_reg = &aup->mac->mii_data; | |
884 | } | |
885 | ||
886 | while (*mii_control_reg & MAC_MII_BUSY) { | |
887 | mdelay(1); | |
888 | if (--timedout == 0) { | |
889 | printk(KERN_ERR "%s: mdio_write busy timeout!!\n", | |
890 | dev->name); | |
891 | return; | |
892 | } | |
893 | } | |
894 | ||
895 | mii_control = MAC_SET_MII_SELECT_REG(reg) | | |
896 | MAC_SET_MII_SELECT_PHY(phy_id) | MAC_MII_WRITE; | |
897 | ||
898 | *mii_data_reg = value; | |
899 | *mii_control_reg = mii_control; | |
900 | } | |
901 | ||
902 | ||
903 | static void dump_mii(struct net_device *dev, int phy_id) | |
904 | { | |
905 | int i, val; | |
906 | ||
907 | for (i = 0; i < 7; i++) { | |
908 | if ((val = mdio_read(dev, phy_id, i)) >= 0) | |
909 | printk("%s: MII Reg %d=%x\n", dev->name, i, val); | |
910 | } | |
911 | for (i = 16; i < 25; i++) { | |
912 | if ((val = mdio_read(dev, phy_id, i)) >= 0) | |
913 | printk("%s: MII Reg %d=%x\n", dev->name, i, val); | |
914 | } | |
915 | } | |
916 | ||
917 | static int mii_probe (struct net_device * dev) | |
918 | { | |
919 | struct au1000_private *aup = (struct au1000_private *) dev->priv; | |
920 | int phy_addr; | |
921 | #ifdef CONFIG_MIPS_BOSPORUS | |
922 | int phy_found=0; | |
923 | #endif | |
924 | ||
925 | /* search for total of 32 possible mii phy addresses */ | |
926 | for (phy_addr = 0; phy_addr < 32; phy_addr++) { | |
927 | u16 mii_status; | |
928 | u16 phy_id0, phy_id1; | |
929 | int i; | |
930 | ||
931 | #ifdef CONFIG_BCM5222_DUAL_PHY | |
932 | /* Mask the already found phy, try next one */ | |
933 | if (au_macs[0]->mii && au_macs[0]->mii->mii_control_reg) { | |
934 | if (au_macs[0]->phy_addr == phy_addr) | |
935 | continue; | |
936 | } | |
937 | #endif | |
938 | ||
939 | mii_status = mdio_read(dev, phy_addr, MII_STATUS); | |
940 | if (mii_status == 0xffff || mii_status == 0x0000) | |
941 | /* the mii is not accessable, try next one */ | |
942 | continue; | |
943 | ||
944 | phy_id0 = mdio_read(dev, phy_addr, MII_PHY_ID0); | |
945 | phy_id1 = mdio_read(dev, phy_addr, MII_PHY_ID1); | |
946 | ||
947 | /* search our mii table for the current mii */ | |
948 | for (i = 0; mii_chip_table[i].phy_id1; i++) { | |
949 | if (phy_id0 == mii_chip_table[i].phy_id0 && | |
950 | phy_id1 == mii_chip_table[i].phy_id1) { | |
951 | struct mii_phy * mii_phy = aup->mii; | |
952 | ||
953 | printk(KERN_INFO "%s: %s at phy address %d\n", | |
954 | dev->name, mii_chip_table[i].name, | |
955 | phy_addr); | |
956 | #ifdef CONFIG_MIPS_BOSPORUS | |
957 | phy_found = 1; | |
958 | #endif | |
959 | mii_phy->chip_info = mii_chip_table+i; | |
960 | aup->phy_addr = phy_addr; | |
961 | aup->want_autoneg = 1; | |
962 | aup->phy_ops = mii_chip_table[i].phy_ops; | |
963 | aup->phy_ops->phy_init(dev,phy_addr); | |
964 | ||
965 | // Check for dual-phy and then store required | |
966 | // values and set indicators. We need to do | |
967 | // this now since mdio_{read,write} need the | |
968 | // control and data register addresses. | |
969 | #ifdef CONFIG_BCM5222_DUAL_PHY | |
970 | if ( mii_chip_table[i].dual_phy) { | |
971 | ||
972 | /* assume both phys are controlled | |
973 | * through MAC0. Board specific? */ | |
974 | ||
975 | /* sanity check */ | |
976 | if (!au_macs[0] || !au_macs[0]->mii) | |
977 | return -1; | |
978 | aup->mii->mii_control_reg = (u32 *) | |
979 | &au_macs[0]->mac->mii_control; | |
980 | aup->mii->mii_data_reg = (u32 *) | |
981 | &au_macs[0]->mac->mii_data; | |
982 | } | |
983 | #endif | |
984 | goto found; | |
985 | } | |
986 | } | |
987 | } | |
988 | found: | |
989 | ||
990 | #ifdef CONFIG_MIPS_BOSPORUS | |
991 | /* This is a workaround for the Micrel/Kendin 5 port switch | |
992 | The second MAC doesn't see a PHY connected... so we need to | |
993 | trick it into thinking we have one. | |
994 | ||
995 | If this kernel is run on another Au1500 development board | |
996 | the stub will be found as well as the actual PHY. However, | |
997 | the last found PHY will be used... usually at Addr 31 (Db1500). | |
998 | */ | |
999 | if ( (!phy_found) ) | |
1000 | { | |
1001 | u16 phy_id0, phy_id1; | |
1002 | int i; | |
1003 | ||
1004 | phy_id0 = 0x1234; | |
1005 | phy_id1 = 0x5678; | |
1006 | ||
1007 | /* search our mii table for the current mii */ | |
1008 | for (i = 0; mii_chip_table[i].phy_id1; i++) { | |
1009 | if (phy_id0 == mii_chip_table[i].phy_id0 && | |
1010 | phy_id1 == mii_chip_table[i].phy_id1) { | |
1011 | struct mii_phy * mii_phy; | |
1012 | ||
1013 | printk(KERN_INFO "%s: %s at phy address %d\n", | |
1014 | dev->name, mii_chip_table[i].name, | |
1015 | phy_addr); | |
1016 | mii_phy = kmalloc(sizeof(struct mii_phy), | |
1017 | GFP_KERNEL); | |
1018 | if (mii_phy) { | |
1019 | mii_phy->chip_info = mii_chip_table+i; | |
1020 | aup->phy_addr = phy_addr; | |
1021 | mii_phy->next = aup->mii; | |
1022 | aup->phy_ops = | |
1023 | mii_chip_table[i].phy_ops; | |
1024 | aup->mii = mii_phy; | |
1025 | aup->phy_ops->phy_init(dev,phy_addr); | |
1026 | } else { | |
1027 | printk(KERN_ERR "%s: out of memory\n", | |
1028 | dev->name); | |
1029 | return -1; | |
1030 | } | |
1031 | mii_phy->chip_info = mii_chip_table+i; | |
1032 | aup->phy_addr = phy_addr; | |
1033 | aup->phy_ops = mii_chip_table[i].phy_ops; | |
1034 | aup->phy_ops->phy_init(dev,phy_addr); | |
1035 | break; | |
1036 | } | |
1037 | } | |
1038 | } | |
1039 | if (aup->mac_id == 0) { | |
1040 | /* the Bosporus phy responds to addresses 0-5 but | |
1041 | * 5 is the correct one. | |
1042 | */ | |
1043 | aup->phy_addr = 5; | |
1044 | } | |
1045 | #endif | |
1046 | ||
1047 | if (aup->mii->chip_info == NULL) { | |
1048 | printk(KERN_ERR "%s: Au1x No MII transceivers found!\n", | |
1049 | dev->name); | |
1050 | return -1; | |
1051 | } | |
1052 | ||
1053 | printk(KERN_INFO "%s: Using %s as default\n", | |
1054 | dev->name, aup->mii->chip_info->name); | |
1055 | ||
1056 | return 0; | |
1057 | } | |
1058 | ||
1059 | ||
1060 | /* | |
1061 | * Buffer allocation/deallocation routines. The buffer descriptor returned | |
1062 | * has the virtual and dma address of a buffer suitable for | |
1063 | * both, receive and transmit operations. | |
1064 | */ | |
1065 | static db_dest_t *GetFreeDB(struct au1000_private *aup) | |
1066 | { | |
1067 | db_dest_t *pDB; | |
1068 | pDB = aup->pDBfree; | |
1069 | ||
1070 | if (pDB) { | |
1071 | aup->pDBfree = pDB->pnext; | |
1072 | } | |
1073 | return pDB; | |
1074 | } | |
1075 | ||
1076 | void ReleaseDB(struct au1000_private *aup, db_dest_t *pDB) | |
1077 | { | |
1078 | db_dest_t *pDBfree = aup->pDBfree; | |
1079 | if (pDBfree) | |
1080 | pDBfree->pnext = pDB; | |
1081 | aup->pDBfree = pDB; | |
1082 | } | |
1083 | ||
1084 | static void enable_rx_tx(struct net_device *dev) | |
1085 | { | |
1086 | struct au1000_private *aup = (struct au1000_private *) dev->priv; | |
1087 | ||
1088 | if (au1000_debug > 4) | |
1089 | printk(KERN_INFO "%s: enable_rx_tx\n", dev->name); | |
1090 | ||
1091 | aup->mac->control |= (MAC_RX_ENABLE | MAC_TX_ENABLE); | |
1092 | au_sync_delay(10); | |
1093 | } | |
1094 | ||
1095 | static void hard_stop(struct net_device *dev) | |
1096 | { | |
1097 | struct au1000_private *aup = (struct au1000_private *) dev->priv; | |
1098 | ||
1099 | if (au1000_debug > 4) | |
1100 | printk(KERN_INFO "%s: hard stop\n", dev->name); | |
1101 | ||
1102 | aup->mac->control &= ~(MAC_RX_ENABLE | MAC_TX_ENABLE); | |
1103 | au_sync_delay(10); | |
1104 | } | |
1105 | ||
1106 | ||
1107 | static void reset_mac(struct net_device *dev) | |
1108 | { | |
1109 | int i; | |
1110 | u32 flags; | |
1111 | struct au1000_private *aup = (struct au1000_private *) dev->priv; | |
1112 | ||
1113 | if (au1000_debug > 4) | |
1114 | printk(KERN_INFO "%s: reset mac, aup %x\n", | |
1115 | dev->name, (unsigned)aup); | |
1116 | ||
1117 | spin_lock_irqsave(&aup->lock, flags); | |
1118 | if (aup->timer.function == &au1000_timer) {/* check if timer initted */ | |
1119 | del_timer(&aup->timer); | |
1120 | } | |
1121 | ||
1122 | hard_stop(dev); | |
1123 | #ifdef CONFIG_BCM5222_DUAL_PHY | |
1124 | if (aup->mac_id != 0) { | |
1125 | #endif | |
1126 | /* If BCM5222, we can't leave MAC0 in reset because then | |
1127 | * we can't access the dual phy for ETH1 */ | |
1128 | *aup->enable = MAC_EN_CLOCK_ENABLE; | |
1129 | au_sync_delay(2); | |
1130 | *aup->enable = 0; | |
1131 | au_sync_delay(2); | |
1132 | #ifdef CONFIG_BCM5222_DUAL_PHY | |
1133 | } | |
1134 | #endif | |
1135 | aup->tx_full = 0; | |
1136 | for (i = 0; i < NUM_RX_DMA; i++) { | |
1137 | /* reset control bits */ | |
1138 | aup->rx_dma_ring[i]->buff_stat &= ~0xf; | |
1139 | } | |
1140 | for (i = 0; i < NUM_TX_DMA; i++) { | |
1141 | /* reset control bits */ | |
1142 | aup->tx_dma_ring[i]->buff_stat &= ~0xf; | |
1143 | } | |
1144 | spin_unlock_irqrestore(&aup->lock, flags); | |
1145 | } | |
1146 | ||
1147 | ||
1148 | /* | |
1149 | * Setup the receive and transmit "rings". These pointers are the addresses | |
1150 | * of the rx and tx MAC DMA registers so they are fixed by the hardware -- | |
1151 | * these are not descriptors sitting in memory. | |
1152 | */ | |
1153 | static void | |
1154 | setup_hw_rings(struct au1000_private *aup, u32 rx_base, u32 tx_base) | |
1155 | { | |
1156 | int i; | |
1157 | ||
1158 | for (i = 0; i < NUM_RX_DMA; i++) { | |
1159 | aup->rx_dma_ring[i] = | |
1160 | (volatile rx_dma_t *) (rx_base + sizeof(rx_dma_t)*i); | |
1161 | } | |
1162 | for (i = 0; i < NUM_TX_DMA; i++) { | |
1163 | aup->tx_dma_ring[i] = | |
1164 | (volatile tx_dma_t *) (tx_base + sizeof(tx_dma_t)*i); | |
1165 | } | |
1166 | } | |
1167 | ||
1168 | static struct { | |
1169 | int port; | |
1170 | u32 base_addr; | |
1171 | u32 macen_addr; | |
1172 | int irq; | |
1173 | struct net_device *dev; | |
1174 | } iflist[2]; | |
1175 | ||
1176 | static int num_ifs; | |
1177 | ||
1178 | /* | |
1179 | * Setup the base address and interupt of the Au1xxx ethernet macs | |
1180 | * based on cpu type and whether the interface is enabled in sys_pinfunc | |
1181 | * register. The last interface is enabled if SYS_PF_NI2 (bit 4) is 0. | |
1182 | */ | |
1183 | static int __init au1000_init_module(void) | |
1184 | { | |
1185 | struct cpuinfo_mips *c = ¤t_cpu_data; | |
1186 | int ni = (int)((au_readl(SYS_PINFUNC) & (u32)(SYS_PF_NI2)) >> 4); | |
1187 | struct net_device *dev; | |
1188 | int i, found_one = 0; | |
1189 | ||
1190 | switch (c->cputype) { | |
1191 | #ifdef CONFIG_SOC_AU1000 | |
1192 | case CPU_AU1000: | |
1193 | num_ifs = 2 - ni; | |
1194 | iflist[0].base_addr = AU1000_ETH0_BASE; | |
1195 | iflist[1].base_addr = AU1000_ETH1_BASE; | |
1196 | iflist[0].macen_addr = AU1000_MAC0_ENABLE; | |
1197 | iflist[1].macen_addr = AU1000_MAC1_ENABLE; | |
1198 | iflist[0].irq = AU1000_MAC0_DMA_INT; | |
1199 | iflist[1].irq = AU1000_MAC1_DMA_INT; | |
1200 | break; | |
1201 | #endif | |
1202 | #ifdef CONFIG_SOC_AU1100 | |
1203 | case CPU_AU1100: | |
1204 | num_ifs = 1 - ni; | |
1205 | iflist[0].base_addr = AU1100_ETH0_BASE; | |
1206 | iflist[0].macen_addr = AU1100_MAC0_ENABLE; | |
1207 | iflist[0].irq = AU1100_MAC0_DMA_INT; | |
1208 | break; | |
1209 | #endif | |
1210 | #ifdef CONFIG_SOC_AU1500 | |
1211 | case CPU_AU1500: | |
1212 | num_ifs = 2 - ni; | |
1213 | iflist[0].base_addr = AU1500_ETH0_BASE; | |
1214 | iflist[1].base_addr = AU1500_ETH1_BASE; | |
1215 | iflist[0].macen_addr = AU1500_MAC0_ENABLE; | |
1216 | iflist[1].macen_addr = AU1500_MAC1_ENABLE; | |
1217 | iflist[0].irq = AU1500_MAC0_DMA_INT; | |
1218 | iflist[1].irq = AU1500_MAC1_DMA_INT; | |
1219 | break; | |
1220 | #endif | |
1221 | #ifdef CONFIG_SOC_AU1550 | |
1222 | case CPU_AU1550: | |
1223 | num_ifs = 2 - ni; | |
1224 | iflist[0].base_addr = AU1550_ETH0_BASE; | |
1225 | iflist[1].base_addr = AU1550_ETH1_BASE; | |
1226 | iflist[0].macen_addr = AU1550_MAC0_ENABLE; | |
1227 | iflist[1].macen_addr = AU1550_MAC1_ENABLE; | |
1228 | iflist[0].irq = AU1550_MAC0_DMA_INT; | |
1229 | iflist[1].irq = AU1550_MAC1_DMA_INT; | |
1230 | break; | |
1231 | #endif | |
1232 | default: | |
1233 | num_ifs = 0; | |
1234 | } | |
1235 | for(i = 0; i < num_ifs; i++) { | |
1236 | dev = au1000_probe(iflist[i].base_addr, iflist[i].irq, i); | |
1237 | iflist[i].dev = dev; | |
1238 | if (dev) | |
1239 | found_one++; | |
1240 | } | |
1241 | if (!found_one) | |
1242 | return -ENODEV; | |
1243 | return 0; | |
1244 | } | |
1245 | ||
1246 | static int au1000_setup_aneg(struct net_device *dev, u32 advertise) | |
1247 | { | |
1248 | struct au1000_private *aup = (struct au1000_private *)dev->priv; | |
1249 | u16 ctl, adv; | |
1250 | ||
1251 | /* Setup standard advertise */ | |
1252 | adv = mdio_read(dev, aup->phy_addr, MII_ADVERTISE); | |
1253 | adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4); | |
1254 | if (advertise & ADVERTISED_10baseT_Half) | |
1255 | adv |= ADVERTISE_10HALF; | |
1256 | if (advertise & ADVERTISED_10baseT_Full) | |
1257 | adv |= ADVERTISE_10FULL; | |
1258 | if (advertise & ADVERTISED_100baseT_Half) | |
1259 | adv |= ADVERTISE_100HALF; | |
1260 | if (advertise & ADVERTISED_100baseT_Full) | |
1261 | adv |= ADVERTISE_100FULL; | |
1262 | mdio_write(dev, aup->phy_addr, MII_ADVERTISE, adv); | |
1263 | ||
1264 | /* Start/Restart aneg */ | |
1265 | ctl = mdio_read(dev, aup->phy_addr, MII_BMCR); | |
1266 | ctl |= (BMCR_ANENABLE | BMCR_ANRESTART); | |
1267 | mdio_write(dev, aup->phy_addr, MII_BMCR, ctl); | |
1268 | ||
1269 | return 0; | |
1270 | } | |
1271 | ||
1272 | static int au1000_setup_forced(struct net_device *dev, int speed, int fd) | |
1273 | { | |
1274 | struct au1000_private *aup = (struct au1000_private *)dev->priv; | |
1275 | u16 ctl; | |
1276 | ||
1277 | ctl = mdio_read(dev, aup->phy_addr, MII_BMCR); | |
1278 | ctl &= ~(BMCR_FULLDPLX | BMCR_SPEED100 | BMCR_ANENABLE); | |
1279 | ||
1280 | /* First reset the PHY */ | |
1281 | mdio_write(dev, aup->phy_addr, MII_BMCR, ctl | BMCR_RESET); | |
1282 | ||
1283 | /* Select speed & duplex */ | |
1284 | switch (speed) { | |
1285 | case SPEED_10: | |
1286 | break; | |
1287 | case SPEED_100: | |
1288 | ctl |= BMCR_SPEED100; | |
1289 | break; | |
1290 | case SPEED_1000: | |
1291 | default: | |
1292 | return -EINVAL; | |
1293 | } | |
1294 | if (fd == DUPLEX_FULL) | |
1295 | ctl |= BMCR_FULLDPLX; | |
1296 | mdio_write(dev, aup->phy_addr, MII_BMCR, ctl); | |
1297 | ||
1298 | return 0; | |
1299 | } | |
1300 | ||
1301 | ||
1302 | static void | |
1303 | au1000_start_link(struct net_device *dev, struct ethtool_cmd *cmd) | |
1304 | { | |
1305 | struct au1000_private *aup = (struct au1000_private *)dev->priv; | |
1306 | u32 advertise; | |
1307 | int autoneg; | |
1308 | int forced_speed; | |
1309 | int forced_duplex; | |
1310 | ||
1311 | /* Default advertise */ | |
1312 | advertise = GENMII_DEFAULT_ADVERTISE; | |
1313 | autoneg = aup->want_autoneg; | |
1314 | forced_speed = SPEED_100; | |
1315 | forced_duplex = DUPLEX_FULL; | |
1316 | ||
1317 | /* Setup link parameters */ | |
1318 | if (cmd) { | |
1319 | if (cmd->autoneg == AUTONEG_ENABLE) { | |
1320 | advertise = cmd->advertising; | |
1321 | autoneg = 1; | |
1322 | } else { | |
1323 | autoneg = 0; | |
1324 | ||
1325 | forced_speed = cmd->speed; | |
1326 | forced_duplex = cmd->duplex; | |
1327 | } | |
1328 | } | |
1329 | ||
1330 | /* Configure PHY & start aneg */ | |
1331 | aup->want_autoneg = autoneg; | |
1332 | if (autoneg) | |
1333 | au1000_setup_aneg(dev, advertise); | |
1334 | else | |
1335 | au1000_setup_forced(dev, forced_speed, forced_duplex); | |
1336 | mod_timer(&aup->timer, jiffies + HZ); | |
1337 | } | |
1338 | ||
1339 | static int au1000_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
1340 | { | |
1341 | struct au1000_private *aup = (struct au1000_private *)dev->priv; | |
1342 | u16 link, speed; | |
1343 | ||
1344 | cmd->supported = GENMII_DEFAULT_FEATURES; | |
1345 | cmd->advertising = GENMII_DEFAULT_ADVERTISE; | |
1346 | cmd->port = PORT_MII; | |
1347 | cmd->transceiver = XCVR_EXTERNAL; | |
1348 | cmd->phy_address = aup->phy_addr; | |
1349 | spin_lock_irq(&aup->lock); | |
1350 | cmd->autoneg = aup->want_autoneg; | |
1351 | aup->phy_ops->phy_status(dev, aup->phy_addr, &link, &speed); | |
1352 | if ((speed == IF_PORT_100BASETX) || (speed == IF_PORT_100BASEFX)) | |
1353 | cmd->speed = SPEED_100; | |
1354 | else if (speed == IF_PORT_10BASET) | |
1355 | cmd->speed = SPEED_10; | |
1356 | if (link && (dev->if_port == IF_PORT_100BASEFX)) | |
1357 | cmd->duplex = DUPLEX_FULL; | |
1358 | else | |
1359 | cmd->duplex = DUPLEX_HALF; | |
1360 | spin_unlock_irq(&aup->lock); | |
1361 | return 0; | |
1362 | } | |
1363 | ||
1364 | static int au1000_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
1365 | { | |
1366 | struct au1000_private *aup = (struct au1000_private *)dev->priv; | |
1367 | unsigned long features = GENMII_DEFAULT_FEATURES; | |
1368 | ||
1369 | if (!capable(CAP_NET_ADMIN)) | |
1370 | return -EPERM; | |
1371 | ||
1372 | if (cmd->autoneg != AUTONEG_ENABLE && cmd->autoneg != AUTONEG_DISABLE) | |
1373 | return -EINVAL; | |
1374 | if (cmd->autoneg == AUTONEG_ENABLE && cmd->advertising == 0) | |
1375 | return -EINVAL; | |
1376 | if (cmd->duplex != DUPLEX_HALF && cmd->duplex != DUPLEX_FULL) | |
1377 | return -EINVAL; | |
1378 | if (cmd->autoneg == AUTONEG_DISABLE) | |
1379 | switch (cmd->speed) { | |
1380 | case SPEED_10: | |
1381 | if (cmd->duplex == DUPLEX_HALF && | |
1382 | (features & SUPPORTED_10baseT_Half) == 0) | |
1383 | return -EINVAL; | |
1384 | if (cmd->duplex == DUPLEX_FULL && | |
1385 | (features & SUPPORTED_10baseT_Full) == 0) | |
1386 | return -EINVAL; | |
1387 | break; | |
1388 | case SPEED_100: | |
1389 | if (cmd->duplex == DUPLEX_HALF && | |
1390 | (features & SUPPORTED_100baseT_Half) == 0) | |
1391 | return -EINVAL; | |
1392 | if (cmd->duplex == DUPLEX_FULL && | |
1393 | (features & SUPPORTED_100baseT_Full) == 0) | |
1394 | return -EINVAL; | |
1395 | break; | |
1396 | default: | |
1397 | return -EINVAL; | |
1398 | } | |
1399 | else if ((features & SUPPORTED_Autoneg) == 0) | |
1400 | return -EINVAL; | |
1401 | ||
1402 | spin_lock_irq(&aup->lock); | |
1403 | au1000_start_link(dev, cmd); | |
1404 | spin_unlock_irq(&aup->lock); | |
1405 | return 0; | |
1406 | } | |
1407 | ||
1408 | static int au1000_nway_reset(struct net_device *dev) | |
1409 | { | |
1410 | struct au1000_private *aup = (struct au1000_private *)dev->priv; | |
1411 | ||
1412 | if (!aup->want_autoneg) | |
1413 | return -EINVAL; | |
1414 | spin_lock_irq(&aup->lock); | |
1415 | au1000_start_link(dev, NULL); | |
1416 | spin_unlock_irq(&aup->lock); | |
1417 | return 0; | |
1418 | } | |
1419 | ||
1420 | static void | |
1421 | au1000_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) | |
1422 | { | |
1423 | struct au1000_private *aup = (struct au1000_private *)dev->priv; | |
1424 | ||
1425 | strcpy(info->driver, DRV_NAME); | |
1426 | strcpy(info->version, DRV_VERSION); | |
1427 | info->fw_version[0] = '\0'; | |
1428 | sprintf(info->bus_info, "%s %d", DRV_NAME, aup->mac_id); | |
1429 | info->regdump_len = 0; | |
1430 | } | |
1431 | ||
1432 | static u32 au1000_get_link(struct net_device *dev) | |
1433 | { | |
1434 | return netif_carrier_ok(dev); | |
1435 | } | |
1436 | ||
1437 | static struct ethtool_ops au1000_ethtool_ops = { | |
1438 | .get_settings = au1000_get_settings, | |
1439 | .set_settings = au1000_set_settings, | |
1440 | .get_drvinfo = au1000_get_drvinfo, | |
1441 | .nway_reset = au1000_nway_reset, | |
1442 | .get_link = au1000_get_link | |
1443 | }; | |
1444 | ||
1445 | static struct net_device * | |
1446 | au1000_probe(u32 ioaddr, int irq, int port_num) | |
1447 | { | |
1448 | static unsigned version_printed = 0; | |
1449 | struct au1000_private *aup = NULL; | |
1450 | struct net_device *dev = NULL; | |
1451 | db_dest_t *pDB, *pDBfree; | |
1452 | char *pmac, *argptr; | |
1453 | char ethaddr[6]; | |
1454 | int i, err; | |
1455 | ||
1456 | if (!request_mem_region(CPHYSADDR(ioaddr), MAC_IOSIZE, "Au1x00 ENET")) | |
1457 | return NULL; | |
1458 | ||
1459 | if (version_printed++ == 0) | |
1460 | printk("%s version %s %s\n", DRV_NAME, DRV_VERSION, DRV_AUTHOR); | |
1461 | ||
1462 | dev = alloc_etherdev(sizeof(struct au1000_private)); | |
1463 | if (!dev) { | |
1464 | printk (KERN_ERR "au1000 eth: alloc_etherdev failed\n"); | |
1465 | return NULL; | |
1466 | } | |
1467 | ||
1468 | if ((err = register_netdev(dev))) { | |
1469 | printk(KERN_ERR "Au1x_eth Cannot register net device err %d\n", | |
1470 | err); | |
1471 | free_netdev(dev); | |
1472 | return NULL; | |
1473 | } | |
1474 | ||
1475 | printk("%s: Au1x Ethernet found at 0x%x, irq %d\n", | |
1476 | dev->name, ioaddr, irq); | |
1477 | ||
1478 | aup = dev->priv; | |
1479 | ||
1480 | /* Allocate the data buffers */ | |
1481 | /* Snooping works fine with eth on all au1xxx */ | |
1482 | aup->vaddr = (u32)dma_alloc_noncoherent(NULL, | |
1483 | MAX_BUF_SIZE * (NUM_TX_BUFFS+NUM_RX_BUFFS), | |
1484 | &aup->dma_addr, | |
1485 | 0); | |
1486 | if (!aup->vaddr) { | |
1487 | free_netdev(dev); | |
1488 | release_mem_region(CPHYSADDR(ioaddr), MAC_IOSIZE); | |
1489 | return NULL; | |
1490 | } | |
1491 | ||
1492 | /* aup->mac is the base address of the MAC's registers */ | |
1493 | aup->mac = (volatile mac_reg_t *)((unsigned long)ioaddr); | |
1494 | /* Setup some variables for quick register address access */ | |
1495 | if (ioaddr == iflist[0].base_addr) | |
1496 | { | |
1497 | /* check env variables first */ | |
1498 | if (!get_ethernet_addr(ethaddr)) { | |
1499 | memcpy(au1000_mac_addr, ethaddr, sizeof(au1000_mac_addr)); | |
1500 | } else { | |
1501 | /* Check command line */ | |
1502 | argptr = prom_getcmdline(); | |
1503 | if ((pmac = strstr(argptr, "ethaddr=")) == NULL) { | |
1504 | printk(KERN_INFO "%s: No mac address found\n", | |
1505 | dev->name); | |
1506 | /* use the hard coded mac addresses */ | |
1507 | } else { | |
1508 | str2eaddr(ethaddr, pmac + strlen("ethaddr=")); | |
1509 | memcpy(au1000_mac_addr, ethaddr, | |
1510 | sizeof(au1000_mac_addr)); | |
1511 | } | |
1512 | } | |
1513 | aup->enable = (volatile u32 *) | |
1514 | ((unsigned long)iflist[0].macen_addr); | |
1515 | memcpy(dev->dev_addr, au1000_mac_addr, sizeof(au1000_mac_addr)); | |
1516 | setup_hw_rings(aup, MAC0_RX_DMA_ADDR, MAC0_TX_DMA_ADDR); | |
1517 | aup->mac_id = 0; | |
1518 | au_macs[0] = aup; | |
1519 | } | |
1520 | else | |
1521 | if (ioaddr == iflist[1].base_addr) | |
1522 | { | |
1523 | aup->enable = (volatile u32 *) | |
1524 | ((unsigned long)iflist[1].macen_addr); | |
1525 | memcpy(dev->dev_addr, au1000_mac_addr, sizeof(au1000_mac_addr)); | |
1526 | dev->dev_addr[4] += 0x10; | |
1527 | setup_hw_rings(aup, MAC1_RX_DMA_ADDR, MAC1_TX_DMA_ADDR); | |
1528 | aup->mac_id = 1; | |
1529 | au_macs[1] = aup; | |
1530 | } | |
1531 | else | |
1532 | { | |
1533 | printk(KERN_ERR "%s: bad ioaddr\n", dev->name); | |
1534 | } | |
1535 | ||
1536 | /* bring the device out of reset, otherwise probing the mii | |
1537 | * will hang */ | |
1538 | *aup->enable = MAC_EN_CLOCK_ENABLE; | |
1539 | au_sync_delay(2); | |
1540 | *aup->enable = MAC_EN_RESET0 | MAC_EN_RESET1 | | |
1541 | MAC_EN_RESET2 | MAC_EN_CLOCK_ENABLE; | |
1542 | au_sync_delay(2); | |
1543 | ||
1544 | aup->mii = kmalloc(sizeof(struct mii_phy), GFP_KERNEL); | |
1545 | if (!aup->mii) { | |
1546 | printk(KERN_ERR "%s: out of memory\n", dev->name); | |
1547 | goto err_out; | |
1548 | } | |
1549 | aup->mii->mii_control_reg = 0; | |
1550 | aup->mii->mii_data_reg = 0; | |
1551 | ||
1552 | if (mii_probe(dev) != 0) { | |
1553 | goto err_out; | |
1554 | } | |
1555 | ||
1556 | pDBfree = NULL; | |
1557 | /* setup the data buffer descriptors and attach a buffer to each one */ | |
1558 | pDB = aup->db; | |
1559 | for (i = 0; i < (NUM_TX_BUFFS+NUM_RX_BUFFS); i++) { | |
1560 | pDB->pnext = pDBfree; | |
1561 | pDBfree = pDB; | |
1562 | pDB->vaddr = (u32 *)((unsigned)aup->vaddr + MAX_BUF_SIZE*i); | |
1563 | pDB->dma_addr = (dma_addr_t)virt_to_bus(pDB->vaddr); | |
1564 | pDB++; | |
1565 | } | |
1566 | aup->pDBfree = pDBfree; | |
1567 | ||
1568 | for (i = 0; i < NUM_RX_DMA; i++) { | |
1569 | pDB = GetFreeDB(aup); | |
1570 | if (!pDB) { | |
1571 | goto err_out; | |
1572 | } | |
1573 | aup->rx_dma_ring[i]->buff_stat = (unsigned)pDB->dma_addr; | |
1574 | aup->rx_db_inuse[i] = pDB; | |
1575 | } | |
1576 | for (i = 0; i < NUM_TX_DMA; i++) { | |
1577 | pDB = GetFreeDB(aup); | |
1578 | if (!pDB) { | |
1579 | goto err_out; | |
1580 | } | |
1581 | aup->tx_dma_ring[i]->buff_stat = (unsigned)pDB->dma_addr; | |
1582 | aup->tx_dma_ring[i]->len = 0; | |
1583 | aup->tx_db_inuse[i] = pDB; | |
1584 | } | |
1585 | ||
1586 | spin_lock_init(&aup->lock); | |
1587 | dev->base_addr = ioaddr; | |
1588 | dev->irq = irq; | |
1589 | dev->open = au1000_open; | |
1590 | dev->hard_start_xmit = au1000_tx; | |
1591 | dev->stop = au1000_close; | |
1592 | dev->get_stats = au1000_get_stats; | |
1593 | dev->set_multicast_list = &set_rx_mode; | |
1594 | dev->do_ioctl = &au1000_ioctl; | |
1595 | SET_ETHTOOL_OPS(dev, &au1000_ethtool_ops); | |
1596 | dev->set_config = &au1000_set_config; | |
1597 | dev->tx_timeout = au1000_tx_timeout; | |
1598 | dev->watchdog_timeo = ETH_TX_TIMEOUT; | |
1599 | ||
1600 | /* | |
1601 | * The boot code uses the ethernet controller, so reset it to start | |
1602 | * fresh. au1000_init() expects that the device is in reset state. | |
1603 | */ | |
1604 | reset_mac(dev); | |
1605 | ||
1606 | return dev; | |
1607 | ||
1608 | err_out: | |
1609 | /* here we should have a valid dev plus aup-> register addresses | |
1610 | * so we can reset the mac properly.*/ | |
1611 | reset_mac(dev); | |
1612 | if (aup->mii) | |
1613 | kfree(aup->mii); | |
1614 | for (i = 0; i < NUM_RX_DMA; i++) { | |
1615 | if (aup->rx_db_inuse[i]) | |
1616 | ReleaseDB(aup, aup->rx_db_inuse[i]); | |
1617 | } | |
1618 | for (i = 0; i < NUM_TX_DMA; i++) { | |
1619 | if (aup->tx_db_inuse[i]) | |
1620 | ReleaseDB(aup, aup->tx_db_inuse[i]); | |
1621 | } | |
1622 | dma_free_noncoherent(NULL, | |
1623 | MAX_BUF_SIZE * (NUM_TX_BUFFS+NUM_RX_BUFFS), | |
1624 | (void *)aup->vaddr, | |
1625 | aup->dma_addr); | |
1626 | unregister_netdev(dev); | |
1627 | free_netdev(dev); | |
1628 | release_mem_region(CPHYSADDR(ioaddr), MAC_IOSIZE); | |
1629 | return NULL; | |
1630 | } | |
1631 | ||
1632 | /* | |
1633 | * Initialize the interface. | |
1634 | * | |
1635 | * When the device powers up, the clocks are disabled and the | |
1636 | * mac is in reset state. When the interface is closed, we | |
1637 | * do the same -- reset the device and disable the clocks to | |
1638 | * conserve power. Thus, whenever au1000_init() is called, | |
1639 | * the device should already be in reset state. | |
1640 | */ | |
1641 | static int au1000_init(struct net_device *dev) | |
1642 | { | |
1643 | struct au1000_private *aup = (struct au1000_private *) dev->priv; | |
1644 | u32 flags; | |
1645 | int i; | |
1646 | u32 control; | |
1647 | u16 link, speed; | |
1648 | ||
1649 | if (au1000_debug > 4) | |
1650 | printk("%s: au1000_init\n", dev->name); | |
1651 | ||
1652 | spin_lock_irqsave(&aup->lock, flags); | |
1653 | ||
1654 | /* bring the device out of reset */ | |
1655 | *aup->enable = MAC_EN_CLOCK_ENABLE; | |
1656 | au_sync_delay(2); | |
1657 | *aup->enable = MAC_EN_RESET0 | MAC_EN_RESET1 | | |
1658 | MAC_EN_RESET2 | MAC_EN_CLOCK_ENABLE; | |
1659 | au_sync_delay(20); | |
1660 | ||
1661 | aup->mac->control = 0; | |
1662 | aup->tx_head = (aup->tx_dma_ring[0]->buff_stat & 0xC) >> 2; | |
1663 | aup->tx_tail = aup->tx_head; | |
1664 | aup->rx_head = (aup->rx_dma_ring[0]->buff_stat & 0xC) >> 2; | |
1665 | ||
1666 | aup->mac->mac_addr_high = dev->dev_addr[5]<<8 | dev->dev_addr[4]; | |
1667 | aup->mac->mac_addr_low = dev->dev_addr[3]<<24 | dev->dev_addr[2]<<16 | | |
1668 | dev->dev_addr[1]<<8 | dev->dev_addr[0]; | |
1669 | ||
1670 | for (i = 0; i < NUM_RX_DMA; i++) { | |
1671 | aup->rx_dma_ring[i]->buff_stat |= RX_DMA_ENABLE; | |
1672 | } | |
1673 | au_sync(); | |
1674 | ||
1675 | aup->phy_ops->phy_status(dev, aup->phy_addr, &link, &speed); | |
1676 | control = MAC_DISABLE_RX_OWN | MAC_RX_ENABLE | MAC_TX_ENABLE; | |
1677 | #ifndef CONFIG_CPU_LITTLE_ENDIAN | |
1678 | control |= MAC_BIG_ENDIAN; | |
1679 | #endif | |
1680 | if (link && (dev->if_port == IF_PORT_100BASEFX)) { | |
1681 | control |= MAC_FULL_DUPLEX; | |
1682 | } | |
1683 | ||
1684 | /* fix for startup without cable */ | |
1685 | if (!link) | |
1686 | dev->flags &= ~IFF_RUNNING; | |
1687 | ||
1688 | aup->mac->control = control; | |
1689 | aup->mac->vlan1_tag = 0x8100; /* activate vlan support */ | |
1690 | au_sync(); | |
1691 | ||
1692 | spin_unlock_irqrestore(&aup->lock, flags); | |
1693 | return 0; | |
1694 | } | |
1695 | ||
1696 | static void au1000_timer(unsigned long data) | |
1697 | { | |
1698 | struct net_device *dev = (struct net_device *)data; | |
1699 | struct au1000_private *aup = (struct au1000_private *) dev->priv; | |
1700 | unsigned char if_port; | |
1701 | u16 link, speed; | |
1702 | ||
1703 | if (!dev) { | |
1704 | /* fatal error, don't restart the timer */ | |
1705 | printk(KERN_ERR "au1000_timer error: NULL dev\n"); | |
1706 | return; | |
1707 | } | |
1708 | ||
1709 | if_port = dev->if_port; | |
1710 | if (aup->phy_ops->phy_status(dev, aup->phy_addr, &link, &speed) == 0) { | |
1711 | if (link) { | |
1712 | if (!(dev->flags & IFF_RUNNING)) { | |
1713 | netif_carrier_on(dev); | |
1714 | dev->flags |= IFF_RUNNING; | |
1715 | printk(KERN_INFO "%s: link up\n", dev->name); | |
1716 | } | |
1717 | } | |
1718 | else { | |
1719 | if (dev->flags & IFF_RUNNING) { | |
1720 | netif_carrier_off(dev); | |
1721 | dev->flags &= ~IFF_RUNNING; | |
1722 | dev->if_port = 0; | |
1723 | printk(KERN_INFO "%s: link down\n", dev->name); | |
1724 | } | |
1725 | } | |
1726 | } | |
1727 | ||
1728 | if (link && (dev->if_port != if_port) && | |
1729 | (dev->if_port != IF_PORT_UNKNOWN)) { | |
1730 | hard_stop(dev); | |
1731 | if (dev->if_port == IF_PORT_100BASEFX) { | |
1732 | printk(KERN_INFO "%s: going to full duplex\n", | |
1733 | dev->name); | |
1734 | aup->mac->control |= MAC_FULL_DUPLEX; | |
1735 | au_sync_delay(1); | |
1736 | } | |
1737 | else { | |
1738 | aup->mac->control &= ~MAC_FULL_DUPLEX; | |
1739 | au_sync_delay(1); | |
1740 | } | |
1741 | enable_rx_tx(dev); | |
1742 | } | |
1743 | ||
1744 | aup->timer.expires = RUN_AT((1*HZ)); | |
1745 | aup->timer.data = (unsigned long)dev; | |
1746 | aup->timer.function = &au1000_timer; /* timer handler */ | |
1747 | add_timer(&aup->timer); | |
1748 | ||
1749 | } | |
1750 | ||
1751 | static int au1000_open(struct net_device *dev) | |
1752 | { | |
1753 | int retval; | |
1754 | struct au1000_private *aup = (struct au1000_private *) dev->priv; | |
1755 | ||
1756 | if (au1000_debug > 4) | |
1757 | printk("%s: open: dev=%p\n", dev->name, dev); | |
1758 | ||
1759 | if ((retval = au1000_init(dev))) { | |
1760 | printk(KERN_ERR "%s: error in au1000_init\n", dev->name); | |
1761 | free_irq(dev->irq, dev); | |
1762 | return retval; | |
1763 | } | |
1764 | netif_start_queue(dev); | |
1765 | ||
1766 | if ((retval = request_irq(dev->irq, &au1000_interrupt, 0, | |
1767 | dev->name, dev))) { | |
1768 | printk(KERN_ERR "%s: unable to get IRQ %d\n", | |
1769 | dev->name, dev->irq); | |
1770 | return retval; | |
1771 | } | |
1772 | ||
1773 | init_timer(&aup->timer); /* used in ioctl() */ | |
1774 | aup->timer.expires = RUN_AT((3*HZ)); | |
1775 | aup->timer.data = (unsigned long)dev; | |
1776 | aup->timer.function = &au1000_timer; /* timer handler */ | |
1777 | add_timer(&aup->timer); | |
1778 | ||
1779 | if (au1000_debug > 4) | |
1780 | printk("%s: open: Initialization done.\n", dev->name); | |
1781 | ||
1782 | return 0; | |
1783 | } | |
1784 | ||
1785 | static int au1000_close(struct net_device *dev) | |
1786 | { | |
1787 | u32 flags; | |
1788 | struct au1000_private *aup = (struct au1000_private *) dev->priv; | |
1789 | ||
1790 | if (au1000_debug > 4) | |
1791 | printk("%s: close: dev=%p\n", dev->name, dev); | |
1792 | ||
1793 | reset_mac(dev); | |
1794 | ||
1795 | spin_lock_irqsave(&aup->lock, flags); | |
1796 | ||
1797 | /* stop the device */ | |
1798 | netif_stop_queue(dev); | |
1799 | ||
1800 | /* disable the interrupt */ | |
1801 | free_irq(dev->irq, dev); | |
1802 | spin_unlock_irqrestore(&aup->lock, flags); | |
1803 | ||
1804 | return 0; | |
1805 | } | |
1806 | ||
1807 | static void __exit au1000_cleanup_module(void) | |
1808 | { | |
1809 | int i, j; | |
1810 | struct net_device *dev; | |
1811 | struct au1000_private *aup; | |
1812 | ||
1813 | for (i = 0; i < num_ifs; i++) { | |
1814 | dev = iflist[i].dev; | |
1815 | if (dev) { | |
1816 | aup = (struct au1000_private *) dev->priv; | |
1817 | unregister_netdev(dev); | |
1818 | if (aup->mii) | |
1819 | kfree(aup->mii); | |
1820 | for (j = 0; j < NUM_RX_DMA; j++) { | |
1821 | if (aup->rx_db_inuse[j]) | |
1822 | ReleaseDB(aup, aup->rx_db_inuse[j]); | |
1823 | } | |
1824 | for (j = 0; j < NUM_TX_DMA; j++) { | |
1825 | if (aup->tx_db_inuse[j]) | |
1826 | ReleaseDB(aup, aup->tx_db_inuse[j]); | |
1827 | } | |
1828 | dma_free_noncoherent(NULL, | |
1829 | MAX_BUF_SIZE * (NUM_TX_BUFFS+NUM_RX_BUFFS), | |
1830 | (void *)aup->vaddr, | |
1831 | aup->dma_addr); | |
1832 | free_netdev(dev); | |
1833 | release_mem_region(CPHYSADDR(iflist[i].base_addr), MAC_IOSIZE); | |
1834 | } | |
1835 | } | |
1836 | } | |
1837 | ||
1838 | ||
1839 | static inline void | |
1840 | update_tx_stats(struct net_device *dev, u32 status, u32 pkt_len) | |
1841 | { | |
1842 | struct au1000_private *aup = (struct au1000_private *) dev->priv; | |
1843 | struct net_device_stats *ps = &aup->stats; | |
1844 | ||
1845 | ps->tx_packets++; | |
1846 | ps->tx_bytes += pkt_len; | |
1847 | ||
1848 | if (status & TX_FRAME_ABORTED) { | |
1849 | if (dev->if_port == IF_PORT_100BASEFX) { | |
1850 | if (status & (TX_JAB_TIMEOUT | TX_UNDERRUN)) { | |
1851 | /* any other tx errors are only valid | |
1852 | * in half duplex mode */ | |
1853 | ps->tx_errors++; | |
1854 | ps->tx_aborted_errors++; | |
1855 | } | |
1856 | } | |
1857 | else { | |
1858 | ps->tx_errors++; | |
1859 | ps->tx_aborted_errors++; | |
1860 | if (status & (TX_NO_CARRIER | TX_LOSS_CARRIER)) | |
1861 | ps->tx_carrier_errors++; | |
1862 | } | |
1863 | } | |
1864 | } | |
1865 | ||
1866 | ||
1867 | /* | |
1868 | * Called from the interrupt service routine to acknowledge | |
1869 | * the TX DONE bits. This is a must if the irq is setup as | |
1870 | * edge triggered. | |
1871 | */ | |
1872 | static void au1000_tx_ack(struct net_device *dev) | |
1873 | { | |
1874 | struct au1000_private *aup = (struct au1000_private *) dev->priv; | |
1875 | volatile tx_dma_t *ptxd; | |
1876 | ||
1877 | ptxd = aup->tx_dma_ring[aup->tx_tail]; | |
1878 | ||
1879 | while (ptxd->buff_stat & TX_T_DONE) { | |
1880 | update_tx_stats(dev, ptxd->status, ptxd->len & 0x3ff); | |
1881 | ptxd->buff_stat &= ~TX_T_DONE; | |
1882 | ptxd->len = 0; | |
1883 | au_sync(); | |
1884 | ||
1885 | aup->tx_tail = (aup->tx_tail + 1) & (NUM_TX_DMA - 1); | |
1886 | ptxd = aup->tx_dma_ring[aup->tx_tail]; | |
1887 | ||
1888 | if (aup->tx_full) { | |
1889 | aup->tx_full = 0; | |
1890 | netif_wake_queue(dev); | |
1891 | } | |
1892 | } | |
1893 | } | |
1894 | ||
1895 | ||
1896 | /* | |
1897 | * Au1000 transmit routine. | |
1898 | */ | |
1899 | static int au1000_tx(struct sk_buff *skb, struct net_device *dev) | |
1900 | { | |
1901 | struct au1000_private *aup = (struct au1000_private *) dev->priv; | |
1902 | volatile tx_dma_t *ptxd; | |
1903 | u32 buff_stat; | |
1904 | db_dest_t *pDB; | |
1905 | int i; | |
1906 | ||
1907 | if (au1000_debug > 5) | |
1908 | printk("%s: tx: aup %x len=%d, data=%p, head %d\n", | |
1909 | dev->name, (unsigned)aup, skb->len, | |
1910 | skb->data, aup->tx_head); | |
1911 | ||
1912 | ptxd = aup->tx_dma_ring[aup->tx_head]; | |
1913 | buff_stat = ptxd->buff_stat; | |
1914 | if (buff_stat & TX_DMA_ENABLE) { | |
1915 | /* We've wrapped around and the transmitter is still busy */ | |
1916 | netif_stop_queue(dev); | |
1917 | aup->tx_full = 1; | |
1918 | return 1; | |
1919 | } | |
1920 | else if (buff_stat & TX_T_DONE) { | |
1921 | update_tx_stats(dev, ptxd->status, ptxd->len & 0x3ff); | |
1922 | ptxd->len = 0; | |
1923 | } | |
1924 | ||
1925 | if (aup->tx_full) { | |
1926 | aup->tx_full = 0; | |
1927 | netif_wake_queue(dev); | |
1928 | } | |
1929 | ||
1930 | pDB = aup->tx_db_inuse[aup->tx_head]; | |
1931 | memcpy((void *)pDB->vaddr, skb->data, skb->len); | |
1932 | if (skb->len < ETH_ZLEN) { | |
1933 | for (i=skb->len; i<ETH_ZLEN; i++) { | |
1934 | ((char *)pDB->vaddr)[i] = 0; | |
1935 | } | |
1936 | ptxd->len = ETH_ZLEN; | |
1937 | } | |
1938 | else | |
1939 | ptxd->len = skb->len; | |
1940 | ||
1941 | ptxd->buff_stat = pDB->dma_addr | TX_DMA_ENABLE; | |
1942 | au_sync(); | |
1943 | dev_kfree_skb(skb); | |
1944 | aup->tx_head = (aup->tx_head + 1) & (NUM_TX_DMA - 1); | |
1945 | dev->trans_start = jiffies; | |
1946 | return 0; | |
1947 | } | |
1948 | ||
1949 | ||
1950 | static inline void update_rx_stats(struct net_device *dev, u32 status) | |
1951 | { | |
1952 | struct au1000_private *aup = (struct au1000_private *) dev->priv; | |
1953 | struct net_device_stats *ps = &aup->stats; | |
1954 | ||
1955 | ps->rx_packets++; | |
1956 | if (status & RX_MCAST_FRAME) | |
1957 | ps->multicast++; | |
1958 | ||
1959 | if (status & RX_ERROR) { | |
1960 | ps->rx_errors++; | |
1961 | if (status & RX_MISSED_FRAME) | |
1962 | ps->rx_missed_errors++; | |
1963 | if (status & (RX_OVERLEN | RX_OVERLEN | RX_LEN_ERROR)) | |
1964 | ps->rx_length_errors++; | |
1965 | if (status & RX_CRC_ERROR) | |
1966 | ps->rx_crc_errors++; | |
1967 | if (status & RX_COLL) | |
1968 | ps->collisions++; | |
1969 | } | |
1970 | else | |
1971 | ps->rx_bytes += status & RX_FRAME_LEN_MASK; | |
1972 | ||
1973 | } | |
1974 | ||
1975 | /* | |
1976 | * Au1000 receive routine. | |
1977 | */ | |
1978 | static int au1000_rx(struct net_device *dev) | |
1979 | { | |
1980 | struct au1000_private *aup = (struct au1000_private *) dev->priv; | |
1981 | struct sk_buff *skb; | |
1982 | volatile rx_dma_t *prxd; | |
1983 | u32 buff_stat, status; | |
1984 | db_dest_t *pDB; | |
1985 | u32 frmlen; | |
1986 | ||
1987 | if (au1000_debug > 5) | |
1988 | printk("%s: au1000_rx head %d\n", dev->name, aup->rx_head); | |
1989 | ||
1990 | prxd = aup->rx_dma_ring[aup->rx_head]; | |
1991 | buff_stat = prxd->buff_stat; | |
1992 | while (buff_stat & RX_T_DONE) { | |
1993 | status = prxd->status; | |
1994 | pDB = aup->rx_db_inuse[aup->rx_head]; | |
1995 | update_rx_stats(dev, status); | |
1996 | if (!(status & RX_ERROR)) { | |
1997 | ||
1998 | /* good frame */ | |
1999 | frmlen = (status & RX_FRAME_LEN_MASK); | |
2000 | frmlen -= 4; /* Remove FCS */ | |
2001 | skb = dev_alloc_skb(frmlen + 2); | |
2002 | if (skb == NULL) { | |
2003 | printk(KERN_ERR | |
2004 | "%s: Memory squeeze, dropping packet.\n", | |
2005 | dev->name); | |
2006 | aup->stats.rx_dropped++; | |
2007 | continue; | |
2008 | } | |
2009 | skb->dev = dev; | |
2010 | skb_reserve(skb, 2); /* 16 byte IP header align */ | |
2011 | eth_copy_and_sum(skb, | |
2012 | (unsigned char *)pDB->vaddr, frmlen, 0); | |
2013 | skb_put(skb, frmlen); | |
2014 | skb->protocol = eth_type_trans(skb, dev); | |
2015 | netif_rx(skb); /* pass the packet to upper layers */ | |
2016 | } | |
2017 | else { | |
2018 | if (au1000_debug > 4) { | |
2019 | if (status & RX_MISSED_FRAME) | |
2020 | printk("rx miss\n"); | |
2021 | if (status & RX_WDOG_TIMER) | |
2022 | printk("rx wdog\n"); | |
2023 | if (status & RX_RUNT) | |
2024 | printk("rx runt\n"); | |
2025 | if (status & RX_OVERLEN) | |
2026 | printk("rx overlen\n"); | |
2027 | if (status & RX_COLL) | |
2028 | printk("rx coll\n"); | |
2029 | if (status & RX_MII_ERROR) | |
2030 | printk("rx mii error\n"); | |
2031 | if (status & RX_CRC_ERROR) | |
2032 | printk("rx crc error\n"); | |
2033 | if (status & RX_LEN_ERROR) | |
2034 | printk("rx len error\n"); | |
2035 | if (status & RX_U_CNTRL_FRAME) | |
2036 | printk("rx u control frame\n"); | |
2037 | if (status & RX_MISSED_FRAME) | |
2038 | printk("rx miss\n"); | |
2039 | } | |
2040 | } | |
2041 | prxd->buff_stat = (u32)(pDB->dma_addr | RX_DMA_ENABLE); | |
2042 | aup->rx_head = (aup->rx_head + 1) & (NUM_RX_DMA - 1); | |
2043 | au_sync(); | |
2044 | ||
2045 | /* next descriptor */ | |
2046 | prxd = aup->rx_dma_ring[aup->rx_head]; | |
2047 | buff_stat = prxd->buff_stat; | |
2048 | dev->last_rx = jiffies; | |
2049 | } | |
2050 | return 0; | |
2051 | } | |
2052 | ||
2053 | ||
2054 | /* | |
2055 | * Au1000 interrupt service routine. | |
2056 | */ | |
2057 | static irqreturn_t au1000_interrupt(int irq, void *dev_id, struct pt_regs *regs) | |
2058 | { | |
2059 | struct net_device *dev = (struct net_device *) dev_id; | |
2060 | ||
2061 | if (dev == NULL) { | |
2062 | printk(KERN_ERR "%s: isr: null dev ptr\n", dev->name); | |
2063 | return IRQ_RETVAL(1); | |
2064 | } | |
2065 | ||
2066 | /* Handle RX interrupts first to minimize chance of overrun */ | |
2067 | ||
2068 | au1000_rx(dev); | |
2069 | au1000_tx_ack(dev); | |
2070 | return IRQ_RETVAL(1); | |
2071 | } | |
2072 | ||
2073 | ||
2074 | /* | |
2075 | * The Tx ring has been full longer than the watchdog timeout | |
2076 | * value. The transmitter must be hung? | |
2077 | */ | |
2078 | static void au1000_tx_timeout(struct net_device *dev) | |
2079 | { | |
2080 | printk(KERN_ERR "%s: au1000_tx_timeout: dev=%p\n", dev->name, dev); | |
2081 | reset_mac(dev); | |
2082 | au1000_init(dev); | |
2083 | dev->trans_start = jiffies; | |
2084 | netif_wake_queue(dev); | |
2085 | } | |
2086 | ||
2087 | ||
2088 | static unsigned const ethernet_polynomial = 0x04c11db7U; | |
2089 | static inline u32 ether_crc(int length, unsigned char *data) | |
2090 | { | |
2091 | int crc = -1; | |
2092 | ||
2093 | while(--length >= 0) { | |
2094 | unsigned char current_octet = *data++; | |
2095 | int bit; | |
2096 | for (bit = 0; bit < 8; bit++, current_octet >>= 1) | |
2097 | crc = (crc << 1) ^ | |
2098 | ((crc < 0) ^ (current_octet & 1) ? | |
2099 | ethernet_polynomial : 0); | |
2100 | } | |
2101 | return crc; | |
2102 | } | |
2103 | ||
2104 | static void set_rx_mode(struct net_device *dev) | |
2105 | { | |
2106 | struct au1000_private *aup = (struct au1000_private *) dev->priv; | |
2107 | ||
2108 | if (au1000_debug > 4) | |
2109 | printk("%s: set_rx_mode: flags=%x\n", dev->name, dev->flags); | |
2110 | ||
2111 | if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */ | |
2112 | aup->mac->control |= MAC_PROMISCUOUS; | |
2113 | printk(KERN_INFO "%s: Promiscuous mode enabled.\n", dev->name); | |
2114 | } else if ((dev->flags & IFF_ALLMULTI) || | |
2115 | dev->mc_count > MULTICAST_FILTER_LIMIT) { | |
2116 | aup->mac->control |= MAC_PASS_ALL_MULTI; | |
2117 | aup->mac->control &= ~MAC_PROMISCUOUS; | |
2118 | printk(KERN_INFO "%s: Pass all multicast\n", dev->name); | |
2119 | } else { | |
2120 | int i; | |
2121 | struct dev_mc_list *mclist; | |
2122 | u32 mc_filter[2]; /* Multicast hash filter */ | |
2123 | ||
2124 | mc_filter[1] = mc_filter[0] = 0; | |
2125 | for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; | |
2126 | i++, mclist = mclist->next) { | |
2127 | set_bit(ether_crc(ETH_ALEN, mclist->dmi_addr)>>26, | |
2128 | (long *)mc_filter); | |
2129 | } | |
2130 | aup->mac->multi_hash_high = mc_filter[1]; | |
2131 | aup->mac->multi_hash_low = mc_filter[0]; | |
2132 | aup->mac->control &= ~MAC_PROMISCUOUS; | |
2133 | aup->mac->control |= MAC_HASH_MODE; | |
2134 | } | |
2135 | } | |
2136 | ||
2137 | ||
2138 | static int au1000_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) | |
2139 | { | |
2140 | struct au1000_private *aup = (struct au1000_private *)dev->priv; | |
2141 | u16 *data = (u16 *)&rq->ifr_ifru; | |
2142 | ||
2143 | switch(cmd) { | |
2144 | case SIOCDEVPRIVATE: /* Get the address of the PHY in use. */ | |
2145 | case SIOCGMIIPHY: | |
2146 | if (!netif_running(dev)) return -EINVAL; | |
2147 | data[0] = aup->phy_addr; | |
2148 | case SIOCDEVPRIVATE+1: /* Read the specified MII register. */ | |
2149 | case SIOCGMIIREG: | |
2150 | data[3] = mdio_read(dev, data[0], data[1]); | |
2151 | return 0; | |
2152 | case SIOCDEVPRIVATE+2: /* Write the specified MII register */ | |
2153 | case SIOCSMIIREG: | |
2154 | if (!capable(CAP_NET_ADMIN)) | |
2155 | return -EPERM; | |
2156 | mdio_write(dev, data[0], data[1],data[2]); | |
2157 | return 0; | |
2158 | default: | |
2159 | return -EOPNOTSUPP; | |
2160 | } | |
2161 | ||
2162 | } | |
2163 | ||
2164 | ||
2165 | static int au1000_set_config(struct net_device *dev, struct ifmap *map) | |
2166 | { | |
2167 | struct au1000_private *aup = (struct au1000_private *) dev->priv; | |
2168 | u16 control; | |
2169 | ||
2170 | if (au1000_debug > 4) { | |
2171 | printk("%s: set_config called: dev->if_port %d map->port %x\n", | |
2172 | dev->name, dev->if_port, map->port); | |
2173 | } | |
2174 | ||
2175 | switch(map->port){ | |
2176 | case IF_PORT_UNKNOWN: /* use auto here */ | |
2177 | printk(KERN_INFO "%s: config phy for aneg\n", | |
2178 | dev->name); | |
2179 | dev->if_port = map->port; | |
2180 | /* Link Down: the timer will bring it up */ | |
2181 | netif_carrier_off(dev); | |
2182 | ||
2183 | /* read current control */ | |
2184 | control = mdio_read(dev, aup->phy_addr, MII_CONTROL); | |
2185 | control &= ~(MII_CNTL_FDX | MII_CNTL_F100); | |
2186 | ||
2187 | /* enable auto negotiation and reset the negotiation */ | |
2188 | mdio_write(dev, aup->phy_addr, MII_CONTROL, | |
2189 | control | MII_CNTL_AUTO | | |
2190 | MII_CNTL_RST_AUTO); | |
2191 | ||
2192 | break; | |
2193 | ||
2194 | case IF_PORT_10BASET: /* 10BaseT */ | |
2195 | printk(KERN_INFO "%s: config phy for 10BaseT\n", | |
2196 | dev->name); | |
2197 | dev->if_port = map->port; | |
2198 | ||
2199 | /* Link Down: the timer will bring it up */ | |
2200 | netif_carrier_off(dev); | |
2201 | ||
2202 | /* set Speed to 10Mbps, Half Duplex */ | |
2203 | control = mdio_read(dev, aup->phy_addr, MII_CONTROL); | |
2204 | control &= ~(MII_CNTL_F100 | MII_CNTL_AUTO | | |
2205 | MII_CNTL_FDX); | |
2206 | ||
2207 | /* disable auto negotiation and force 10M/HD mode*/ | |
2208 | mdio_write(dev, aup->phy_addr, MII_CONTROL, control); | |
2209 | break; | |
2210 | ||
2211 | case IF_PORT_100BASET: /* 100BaseT */ | |
2212 | case IF_PORT_100BASETX: /* 100BaseTx */ | |
2213 | printk(KERN_INFO "%s: config phy for 100BaseTX\n", | |
2214 | dev->name); | |
2215 | dev->if_port = map->port; | |
2216 | ||
2217 | /* Link Down: the timer will bring it up */ | |
2218 | netif_carrier_off(dev); | |
2219 | ||
2220 | /* set Speed to 100Mbps, Half Duplex */ | |
2221 | /* disable auto negotiation and enable 100MBit Mode */ | |
2222 | control = mdio_read(dev, aup->phy_addr, MII_CONTROL); | |
2223 | control &= ~(MII_CNTL_AUTO | MII_CNTL_FDX); | |
2224 | control |= MII_CNTL_F100; | |
2225 | mdio_write(dev, aup->phy_addr, MII_CONTROL, control); | |
2226 | break; | |
2227 | ||
2228 | case IF_PORT_100BASEFX: /* 100BaseFx */ | |
2229 | printk(KERN_INFO "%s: config phy for 100BaseFX\n", | |
2230 | dev->name); | |
2231 | dev->if_port = map->port; | |
2232 | ||
2233 | /* Link Down: the timer will bring it up */ | |
2234 | netif_carrier_off(dev); | |
2235 | ||
2236 | /* set Speed to 100Mbps, Full Duplex */ | |
2237 | /* disable auto negotiation and enable 100MBit Mode */ | |
2238 | control = mdio_read(dev, aup->phy_addr, MII_CONTROL); | |
2239 | control &= ~MII_CNTL_AUTO; | |
2240 | control |= MII_CNTL_F100 | MII_CNTL_FDX; | |
2241 | mdio_write(dev, aup->phy_addr, MII_CONTROL, control); | |
2242 | break; | |
2243 | case IF_PORT_10BASE2: /* 10Base2 */ | |
2244 | case IF_PORT_AUI: /* AUI */ | |
2245 | /* These Modes are not supported (are they?)*/ | |
2246 | printk(KERN_ERR "%s: 10Base2/AUI not supported", | |
2247 | dev->name); | |
2248 | return -EOPNOTSUPP; | |
2249 | break; | |
2250 | ||
2251 | default: | |
2252 | printk(KERN_ERR "%s: Invalid media selected", | |
2253 | dev->name); | |
2254 | return -EINVAL; | |
2255 | } | |
2256 | return 0; | |
2257 | } | |
2258 | ||
2259 | static struct net_device_stats *au1000_get_stats(struct net_device *dev) | |
2260 | { | |
2261 | struct au1000_private *aup = (struct au1000_private *) dev->priv; | |
2262 | ||
2263 | if (au1000_debug > 4) | |
2264 | printk("%s: au1000_get_stats: dev=%p\n", dev->name, dev); | |
2265 | ||
2266 | if (netif_device_present(dev)) { | |
2267 | return &aup->stats; | |
2268 | } | |
2269 | return 0; | |
2270 | } | |
2271 | ||
2272 | module_init(au1000_init_module); | |
2273 | module_exit(au1000_cleanup_module); |