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1 /*
2  * Marvell PHY drivers
3  *
4  * This program is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public License as
6  * published by the Free Software Foundation; either version 2 of
7  * the License, or (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
17  * MA 02111-1307 USA
18  *
19  * Copyright 2010-2011 Freescale Semiconductor, Inc.
20  * author Andy Fleming
21  *
22  */
23 #include <config.h>
24 #include <common.h>
25 #include <phy.h>
26
27 #define PHY_AUTONEGOTIATE_TIMEOUT 5000
28
29 /* 88E1011 PHY Status Register */
30 #define MIIM_88E1xxx_PHY_STATUS         0x11
31 #define MIIM_88E1xxx_PHYSTAT_SPEED      0xc000
32 #define MIIM_88E1xxx_PHYSTAT_GBIT       0x8000
33 #define MIIM_88E1xxx_PHYSTAT_100        0x4000
34 #define MIIM_88E1xxx_PHYSTAT_DUPLEX     0x2000
35 #define MIIM_88E1xxx_PHYSTAT_SPDDONE    0x0800
36 #define MIIM_88E1xxx_PHYSTAT_LINK       0x0400
37
38 #define MIIM_88E1xxx_PHY_SCR            0x10
39 #define MIIM_88E1xxx_PHY_MDI_X_AUTO     0x0060
40
41 /* 88E1111 PHY LED Control Register */
42 #define MIIM_88E1111_PHY_LED_CONTROL    24
43 #define MIIM_88E1111_PHY_LED_DIRECT     0x4100
44 #define MIIM_88E1111_PHY_LED_COMBINE    0x411C
45
46 /* 88E1111 Extended PHY Specific Control Register */
47 #define MIIM_88E1111_PHY_EXT_CR         0x14
48 #define MIIM_88E1111_RX_DELAY           0x80
49 #define MIIM_88E1111_TX_DELAY           0x2
50
51 /* 88E1111 Extended PHY Specific Status Register */
52 #define MIIM_88E1111_PHY_EXT_SR         0x1b
53 #define MIIM_88E1111_HWCFG_MODE_MASK            0xf
54 #define MIIM_88E1111_HWCFG_MODE_COPPER_RGMII    0xb
55 #define MIIM_88E1111_HWCFG_MODE_FIBER_RGMII     0x3
56 #define MIIM_88E1111_HWCFG_MODE_SGMII_NO_CLK    0x4
57 #define MIIM_88E1111_HWCFG_MODE_COPPER_RTBI     0x9
58 #define MIIM_88E1111_HWCFG_FIBER_COPPER_AUTO    0x8000
59 #define MIIM_88E1111_HWCFG_FIBER_COPPER_RES     0x2000
60
61 #define MIIM_88E1111_COPPER             0
62 #define MIIM_88E1111_FIBER              1
63
64 /* 88E1118 PHY defines */
65 #define MIIM_88E1118_PHY_PAGE           22
66 #define MIIM_88E1118_PHY_LED_PAGE       3
67
68 /* 88E1121 PHY LED Control Register */
69 #define MIIM_88E1121_PHY_LED_CTRL       16
70 #define MIIM_88E1121_PHY_LED_PAGE       3
71 #define MIIM_88E1121_PHY_LED_DEF        0x0030
72
73 /* 88E1121 PHY IRQ Enable/Status Register */
74 #define MIIM_88E1121_PHY_IRQ_EN         18
75 #define MIIM_88E1121_PHY_IRQ_STATUS     19
76
77 #define MIIM_88E1121_PHY_PAGE           22
78
79 /* 88E1145 Extended PHY Specific Control Register */
80 #define MIIM_88E1145_PHY_EXT_CR 20
81 #define MIIM_M88E1145_RGMII_RX_DELAY    0x0080
82 #define MIIM_M88E1145_RGMII_TX_DELAY    0x0002
83
84 #define MIIM_88E1145_PHY_LED_CONTROL    24
85 #define MIIM_88E1145_PHY_LED_DIRECT     0x4100
86
87 #define MIIM_88E1145_PHY_PAGE   29
88 #define MIIM_88E1145_PHY_CAL_OV 30
89
90 #define MIIM_88E1149_PHY_PAGE   29
91
92 /* 88E1310 PHY defines */
93 #define MIIM_88E1310_PHY_LED_CTRL       16
94 #define MIIM_88E1310_PHY_IRQ_EN         18
95 #define MIIM_88E1310_PHY_RGMII_CTRL     21
96 #define MIIM_88E1310_PHY_PAGE           22
97
98 /* Marvell 88E1011S */
99 static int m88e1011s_config(struct phy_device *phydev)
100 {
101         /* Reset and configure the PHY */
102         phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, BMCR_RESET);
103
104         phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x1f);
105         phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x200c);
106         phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x5);
107         phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0);
108         phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x100);
109
110         phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, BMCR_RESET);
111
112         genphy_config_aneg(phydev);
113
114         return 0;
115 }
116
117 /* Parse the 88E1011's status register for speed and duplex
118  * information
119  */
120 static uint m88e1xxx_parse_status(struct phy_device *phydev)
121 {
122         unsigned int speed;
123         unsigned int mii_reg;
124
125         mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_88E1xxx_PHY_STATUS);
126
127         if ((mii_reg & MIIM_88E1xxx_PHYSTAT_LINK) &&
128                 !(mii_reg & MIIM_88E1xxx_PHYSTAT_SPDDONE)) {
129                 int i = 0;
130
131                 puts("Waiting for PHY realtime link");
132                 while (!(mii_reg & MIIM_88E1xxx_PHYSTAT_SPDDONE)) {
133                         /* Timeout reached ? */
134                         if (i > PHY_AUTONEGOTIATE_TIMEOUT) {
135                                 puts(" TIMEOUT !\n");
136                                 phydev->link = 0;
137                                 break;
138                         }
139
140                         if ((i++ % 1000) == 0)
141                                 putc('.');
142                         udelay(1000);
143                         mii_reg = phy_read(phydev, MDIO_DEVAD_NONE,
144                                         MIIM_88E1xxx_PHY_STATUS);
145                 }
146                 puts(" done\n");
147                 udelay(500000); /* another 500 ms (results in faster booting) */
148         } else {
149                 if (mii_reg & MIIM_88E1xxx_PHYSTAT_LINK)
150                         phydev->link = 1;
151                 else
152                         phydev->link = 0;
153         }
154
155         if (mii_reg & MIIM_88E1xxx_PHYSTAT_DUPLEX)
156                 phydev->duplex = DUPLEX_FULL;
157         else
158                 phydev->duplex = DUPLEX_HALF;
159
160         speed = mii_reg & MIIM_88E1xxx_PHYSTAT_SPEED;
161
162         switch (speed) {
163         case MIIM_88E1xxx_PHYSTAT_GBIT:
164                 phydev->speed = SPEED_1000;
165                 break;
166         case MIIM_88E1xxx_PHYSTAT_100:
167                 phydev->speed = SPEED_100;
168                 break;
169         default:
170                 phydev->speed = SPEED_10;
171                 break;
172         }
173
174         return 0;
175 }
176
177 static int m88e1011s_startup(struct phy_device *phydev)
178 {
179         genphy_update_link(phydev);
180         m88e1xxx_parse_status(phydev);
181
182         return 0;
183 }
184
185 /* Marvell 88E1111S */
186 static int m88e1111s_config(struct phy_device *phydev)
187 {
188         int reg;
189         int timeout;
190
191         if ((phydev->interface == PHY_INTERFACE_MODE_RGMII) ||
192                         (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) ||
193                         (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
194                         (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)) {
195                 reg = phy_read(phydev,
196                         MDIO_DEVAD_NONE, MIIM_88E1111_PHY_EXT_CR);
197                 if ((phydev->interface == PHY_INTERFACE_MODE_RGMII) ||
198                         (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID)) {
199                         reg |= (MIIM_88E1111_RX_DELAY | MIIM_88E1111_TX_DELAY);
200                 } else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) {
201                         reg &= ~MIIM_88E1111_TX_DELAY;
202                         reg |= MIIM_88E1111_RX_DELAY;
203                 } else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) {
204                         reg &= ~MIIM_88E1111_RX_DELAY;
205                         reg |= MIIM_88E1111_TX_DELAY;
206                 }
207
208                 phy_write(phydev,
209                         MDIO_DEVAD_NONE, MIIM_88E1111_PHY_EXT_CR, reg);
210
211                 reg = phy_read(phydev,
212                         MDIO_DEVAD_NONE, MIIM_88E1111_PHY_EXT_SR);
213
214                 reg &= ~(MIIM_88E1111_HWCFG_MODE_MASK);
215
216                 if (reg & MIIM_88E1111_HWCFG_FIBER_COPPER_RES)
217                         reg |= MIIM_88E1111_HWCFG_MODE_FIBER_RGMII;
218                 else
219                         reg |= MIIM_88E1111_HWCFG_MODE_COPPER_RGMII;
220
221                 phy_write(phydev,
222                         MDIO_DEVAD_NONE, MIIM_88E1111_PHY_EXT_SR, reg);
223         }
224
225         if (phydev->interface == PHY_INTERFACE_MODE_SGMII) {
226                 reg = phy_read(phydev,
227                         MDIO_DEVAD_NONE, MIIM_88E1111_PHY_EXT_SR);
228
229                 reg &= ~(MIIM_88E1111_HWCFG_MODE_MASK);
230                 reg |= MIIM_88E1111_HWCFG_MODE_SGMII_NO_CLK;
231                 reg |= MIIM_88E1111_HWCFG_FIBER_COPPER_AUTO;
232
233                 phy_write(phydev, MDIO_DEVAD_NONE,
234                         MIIM_88E1111_PHY_EXT_SR, reg);
235         }
236
237         if (phydev->interface == PHY_INTERFACE_MODE_RTBI) {
238                 reg = phy_read(phydev,
239                         MDIO_DEVAD_NONE, MIIM_88E1111_PHY_EXT_CR);
240                 reg |= (MIIM_88E1111_RX_DELAY | MIIM_88E1111_TX_DELAY);
241                 phy_write(phydev,
242                         MDIO_DEVAD_NONE, MIIM_88E1111_PHY_EXT_CR, reg);
243
244                 reg = phy_read(phydev, MDIO_DEVAD_NONE,
245                         MIIM_88E1111_PHY_EXT_SR);
246                 reg &= ~(MIIM_88E1111_HWCFG_MODE_MASK |
247                         MIIM_88E1111_HWCFG_FIBER_COPPER_RES);
248                 reg |= 0x7 | MIIM_88E1111_HWCFG_FIBER_COPPER_AUTO;
249                 phy_write(phydev, MDIO_DEVAD_NONE,
250                         MIIM_88E1111_PHY_EXT_SR, reg);
251
252                 /* soft reset */
253                 timeout = 1000;
254                 phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, BMCR_RESET);
255                 udelay(1000);
256                 reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMCR);
257                 while ((reg & BMCR_RESET) && --timeout) {
258                         udelay(1000);
259                         reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMCR);
260                 }
261                 if (!timeout)
262                         printf("%s: phy soft reset timeout\n", __func__);
263
264                 reg = phy_read(phydev, MDIO_DEVAD_NONE,
265                         MIIM_88E1111_PHY_EXT_SR);
266                 reg &= ~(MIIM_88E1111_HWCFG_MODE_MASK |
267                         MIIM_88E1111_HWCFG_FIBER_COPPER_RES);
268                 reg |= MIIM_88E1111_HWCFG_MODE_COPPER_RTBI |
269                         MIIM_88E1111_HWCFG_FIBER_COPPER_AUTO;
270                 phy_write(phydev, MDIO_DEVAD_NONE,
271                         MIIM_88E1111_PHY_EXT_SR, reg);
272         }
273
274         /* soft reset */
275         timeout = 1000;
276         phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, BMCR_RESET);
277         udelay(1000);
278         reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMCR);
279         while ((reg & BMCR_RESET) && --timeout) {
280                 udelay(1000);
281                 reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMCR);
282         }
283         if (!timeout)
284                 printf("%s: phy soft reset timeout\n", __func__);
285
286         genphy_config_aneg(phydev);
287
288         phy_reset(phydev);
289
290         return 0;
291 }
292
293 /* Marvell 88E1118 */
294 static int m88e1118_config(struct phy_device *phydev)
295 {
296         /* Change Page Number */
297         phy_write(phydev, MDIO_DEVAD_NONE, MIIM_88E1118_PHY_PAGE, 0x0002);
298         /* Delay RGMII TX and RX */
299         phy_write(phydev, MDIO_DEVAD_NONE, 0x15, 0x1070);
300         /* Change Page Number */
301         phy_write(phydev, MDIO_DEVAD_NONE, MIIM_88E1118_PHY_PAGE, 0x0003);
302         /* Adjust LED control */
303         phy_write(phydev, MDIO_DEVAD_NONE, 0x10, 0x021e);
304         /* Change Page Number */
305         phy_write(phydev, MDIO_DEVAD_NONE, MIIM_88E1118_PHY_PAGE, 0x0000);
306
307         genphy_config_aneg(phydev);
308
309         phy_reset(phydev);
310
311         return 0;
312 }
313
314 static int m88e1118_startup(struct phy_device *phydev)
315 {
316         /* Change Page Number */
317         phy_write(phydev, MDIO_DEVAD_NONE, MIIM_88E1118_PHY_PAGE, 0x0000);
318
319         genphy_update_link(phydev);
320         m88e1xxx_parse_status(phydev);
321
322         return 0;
323 }
324
325 /* Marvell 88E1121R */
326 static int m88e1121_config(struct phy_device *phydev)
327 {
328         int pg;
329
330         /* Configure the PHY */
331         genphy_config_aneg(phydev);
332
333         /* Switch the page to access the led register */
334         pg = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_88E1121_PHY_PAGE);
335         phy_write(phydev, MDIO_DEVAD_NONE, MIIM_88E1121_PHY_PAGE,
336                         MIIM_88E1121_PHY_LED_PAGE);
337         /* Configure leds */
338         phy_write(phydev, MDIO_DEVAD_NONE, MIIM_88E1121_PHY_LED_CTRL,
339                         MIIM_88E1121_PHY_LED_DEF);
340         /* Restore the page pointer */
341         phy_write(phydev, MDIO_DEVAD_NONE, MIIM_88E1121_PHY_PAGE, pg);
342
343         /* Disable IRQs and de-assert interrupt */
344         phy_write(phydev, MDIO_DEVAD_NONE, MIIM_88E1121_PHY_IRQ_EN, 0);
345         phy_read(phydev, MDIO_DEVAD_NONE, MIIM_88E1121_PHY_IRQ_STATUS);
346
347         return 0;
348 }
349
350 /* Marvell 88E1145 */
351 static int m88e1145_config(struct phy_device *phydev)
352 {
353         int reg;
354
355         /* Errata E0, E1 */
356         phy_write(phydev, MDIO_DEVAD_NONE, MIIM_88E1145_PHY_PAGE, 0x001b);
357         phy_write(phydev, MDIO_DEVAD_NONE, MIIM_88E1145_PHY_CAL_OV, 0x418f);
358         phy_write(phydev, MDIO_DEVAD_NONE, MIIM_88E1145_PHY_PAGE, 0x0016);
359         phy_write(phydev, MDIO_DEVAD_NONE, MIIM_88E1145_PHY_CAL_OV, 0xa2da);
360
361         phy_write(phydev, MDIO_DEVAD_NONE, MIIM_88E1xxx_PHY_SCR,
362                         MIIM_88E1xxx_PHY_MDI_X_AUTO);
363
364         reg = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_88E1145_PHY_EXT_CR);
365         if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID)
366                 reg |= MIIM_M88E1145_RGMII_RX_DELAY |
367                         MIIM_M88E1145_RGMII_TX_DELAY;
368         phy_write(phydev, MDIO_DEVAD_NONE, MIIM_88E1145_PHY_EXT_CR, reg);
369
370         genphy_config_aneg(phydev);
371
372         phy_reset(phydev);
373
374         return 0;
375 }
376
377 static int m88e1145_startup(struct phy_device *phydev)
378 {
379         genphy_update_link(phydev);
380         phy_write(phydev, MDIO_DEVAD_NONE, MIIM_88E1145_PHY_LED_CONTROL,
381                         MIIM_88E1145_PHY_LED_DIRECT);
382         m88e1xxx_parse_status(phydev);
383
384         return 0;
385 }
386
387 /* Marvell 88E1149S */
388 static int m88e1149_config(struct phy_device *phydev)
389 {
390         phy_write(phydev, MDIO_DEVAD_NONE, MIIM_88E1149_PHY_PAGE, 0x1f);
391         phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x200c);
392         phy_write(phydev, MDIO_DEVAD_NONE, MIIM_88E1149_PHY_PAGE, 0x5);
393         phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x0);
394         phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x100);
395
396         genphy_config_aneg(phydev);
397
398         phy_reset(phydev);
399
400         return 0;
401 }
402
403 /* Marvell 88E1310 */
404 static int m88e1310_config(struct phy_device *phydev)
405 {
406         u16 reg;
407
408         /* LED link and activity */
409         phy_write(phydev, MDIO_DEVAD_NONE, MIIM_88E1310_PHY_PAGE, 0x0003);
410         reg = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_88E1310_PHY_LED_CTRL);
411         reg = (reg & ~0xf) | 0x1;
412         phy_write(phydev, MDIO_DEVAD_NONE, MIIM_88E1310_PHY_LED_CTRL, reg);
413
414         /* Set LED2/INT to INT mode, low active */
415         phy_write(phydev, MDIO_DEVAD_NONE, MIIM_88E1310_PHY_PAGE, 0x0003);
416         reg = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_88E1310_PHY_IRQ_EN);
417         reg = (reg & 0x77ff) | 0x0880;
418         phy_write(phydev, MDIO_DEVAD_NONE, MIIM_88E1310_PHY_IRQ_EN, reg);
419
420         /* Set RGMII delay */
421         phy_write(phydev, MDIO_DEVAD_NONE, MIIM_88E1310_PHY_PAGE, 0x0002);
422         reg = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_88E1310_PHY_RGMII_CTRL);
423         reg |= 0x0030;
424         phy_write(phydev, MDIO_DEVAD_NONE, MIIM_88E1310_PHY_RGMII_CTRL, reg);
425
426         /* Ensure to return to page 0 */
427         phy_write(phydev, MDIO_DEVAD_NONE, MIIM_88E1310_PHY_PAGE, 0x0000);
428
429         genphy_config_aneg(phydev);
430         phy_reset(phydev);
431
432         return 0;
433 }
434
435 static struct phy_driver M88E1011S_driver = {
436         .name = "Marvell 88E1011S",
437         .uid = 0x1410c60,
438         .mask = 0xffffff0,
439         .features = PHY_GBIT_FEATURES,
440         .config = &m88e1011s_config,
441         .startup = &m88e1011s_startup,
442         .shutdown = &genphy_shutdown,
443 };
444
445 static struct phy_driver M88E1111S_driver = {
446         .name = "Marvell 88E1111S",
447         .uid = 0x1410cc0,
448         .mask = 0xffffff0,
449         .features = PHY_GBIT_FEATURES,
450         .config = &m88e1111s_config,
451         .startup = &m88e1011s_startup,
452         .shutdown = &genphy_shutdown,
453 };
454
455 static struct phy_driver M88E1118_driver = {
456         .name = "Marvell 88E1118",
457         .uid = 0x1410e10,
458         .mask = 0xffffff0,
459         .features = PHY_GBIT_FEATURES,
460         .config = &m88e1118_config,
461         .startup = &m88e1118_startup,
462         .shutdown = &genphy_shutdown,
463 };
464
465 static struct phy_driver M88E1118R_driver = {
466         .name = "Marvell 88E1118R",
467         .uid = 0x1410e40,
468         .mask = 0xffffff0,
469         .features = PHY_GBIT_FEATURES,
470         .config = &m88e1118_config,
471         .startup = &m88e1118_startup,
472         .shutdown = &genphy_shutdown,
473 };
474
475 static struct phy_driver M88E1121R_driver = {
476         .name = "Marvell 88E1121R",
477         .uid = 0x1410cb0,
478         .mask = 0xffffff0,
479         .features = PHY_GBIT_FEATURES,
480         .config = &m88e1121_config,
481         .startup = &genphy_startup,
482         .shutdown = &genphy_shutdown,
483 };
484
485 static struct phy_driver M88E1145_driver = {
486         .name = "Marvell 88E1145",
487         .uid = 0x1410cd0,
488         .mask = 0xffffff0,
489         .features = PHY_GBIT_FEATURES,
490         .config = &m88e1145_config,
491         .startup = &m88e1145_startup,
492         .shutdown = &genphy_shutdown,
493 };
494
495 static struct phy_driver M88E1149S_driver = {
496         .name = "Marvell 88E1149S",
497         .uid = 0x1410ca0,
498         .mask = 0xffffff0,
499         .features = PHY_GBIT_FEATURES,
500         .config = &m88e1149_config,
501         .startup = &m88e1011s_startup,
502         .shutdown = &genphy_shutdown,
503 };
504
505 static struct phy_driver M88E1518_driver = {
506         .name = "Marvell 88E1518",
507         .uid = 0x1410dd1,
508         .mask = 0xffffff0,
509         .features = PHY_GBIT_FEATURES,
510         .config = &m88e1111s_config,
511         .startup = &m88e1011s_startup,
512         .shutdown = &genphy_shutdown,
513 };
514
515 static struct phy_driver M88E1310_driver = {
516         .name = "Marvell 88E1310",
517         .uid = 0x01410e90,
518         .mask = 0xffffff0,
519         .features = PHY_GBIT_FEATURES,
520         .config = &m88e1310_config,
521         .startup = &m88e1011s_startup,
522         .shutdown = &genphy_shutdown,
523 };
524
525 int phy_marvell_init(void)
526 {
527         phy_register(&M88E1310_driver);
528         phy_register(&M88E1149S_driver);
529         phy_register(&M88E1145_driver);
530         phy_register(&M88E1121R_driver);
531         phy_register(&M88E1118_driver);
532         phy_register(&M88E1118R_driver);
533         phy_register(&M88E1111S_driver);
534         phy_register(&M88E1011S_driver);
535         phy_register(&M88E1518_driver);
536
537         return 0;
538 }