1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Marvell 88E6xxx Switch Port Registers support
4 *
5 * Copyright (c) 2008 Marvell Semiconductor
6 *
7 * Copyright (c) 2016-2017 Savoir-faire Linux Inc.
8 * Vivien Didelot <vivien.didelot@savoirfairelinux.com>
9 */
10
11 #include <linux/bitfield.h>
12 #include <linux/if_bridge.h>
13 #include <linux/phy.h>
14 #include <linux/phylink.h>
15
16 #include "chip.h"
17 #include "port.h"
18 #include "serdes.h"
19
mv88e6xxx_port_read(struct mv88e6xxx_chip * chip,int port,int reg,u16 * val)20 int mv88e6xxx_port_read(struct mv88e6xxx_chip *chip, int port, int reg,
21 u16 *val)
22 {
23 int addr = chip->info->port_base_addr + port;
24
25 return mv88e6xxx_read(chip, addr, reg, val);
26 }
27
mv88e6xxx_port_write(struct mv88e6xxx_chip * chip,int port,int reg,u16 val)28 int mv88e6xxx_port_write(struct mv88e6xxx_chip *chip, int port, int reg,
29 u16 val)
30 {
31 int addr = chip->info->port_base_addr + port;
32
33 return mv88e6xxx_write(chip, addr, reg, val);
34 }
35
36 /* Offset 0x00: MAC (or PCS or Physical) Status Register
37 *
38 * For most devices, this is read only. However the 6185 has the MyPause
39 * bit read/write.
40 */
mv88e6185_port_set_pause(struct mv88e6xxx_chip * chip,int port,int pause)41 int mv88e6185_port_set_pause(struct mv88e6xxx_chip *chip, int port,
42 int pause)
43 {
44 u16 reg;
45 int err;
46
47 err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_STS, ®);
48 if (err)
49 return err;
50
51 if (pause)
52 reg |= MV88E6XXX_PORT_STS_MY_PAUSE;
53 else
54 reg &= ~MV88E6XXX_PORT_STS_MY_PAUSE;
55
56 return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_STS, reg);
57 }
58
59 /* Offset 0x01: MAC (or PCS or Physical) Control Register
60 *
61 * Link, Duplex and Flow Control have one force bit, one value bit.
62 *
63 * For port's MAC speed, ForceSpd (or SpdValue) bits 1:0 program the value.
64 * Alternative values require the 200BASE (or AltSpeed) bit 12 set.
65 * Newer chips need a ForcedSpd bit 13 set to consider the value.
66 */
67
mv88e6xxx_port_set_rgmii_delay(struct mv88e6xxx_chip * chip,int port,phy_interface_t mode)68 static int mv88e6xxx_port_set_rgmii_delay(struct mv88e6xxx_chip *chip, int port,
69 phy_interface_t mode)
70 {
71 u16 reg;
72 int err;
73
74 err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_MAC_CTL, ®);
75 if (err)
76 return err;
77
78 reg &= ~(MV88E6XXX_PORT_MAC_CTL_RGMII_DELAY_RXCLK |
79 MV88E6XXX_PORT_MAC_CTL_RGMII_DELAY_TXCLK);
80
81 switch (mode) {
82 case PHY_INTERFACE_MODE_RGMII_RXID:
83 reg |= MV88E6XXX_PORT_MAC_CTL_RGMII_DELAY_RXCLK;
84 break;
85 case PHY_INTERFACE_MODE_RGMII_TXID:
86 reg |= MV88E6XXX_PORT_MAC_CTL_RGMII_DELAY_TXCLK;
87 break;
88 case PHY_INTERFACE_MODE_RGMII_ID:
89 reg |= MV88E6XXX_PORT_MAC_CTL_RGMII_DELAY_RXCLK |
90 MV88E6XXX_PORT_MAC_CTL_RGMII_DELAY_TXCLK;
91 break;
92 case PHY_INTERFACE_MODE_RGMII:
93 break;
94 default:
95 return 0;
96 }
97
98 err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_MAC_CTL, reg);
99 if (err)
100 return err;
101
102 dev_dbg(chip->dev, "p%d: delay RXCLK %s, TXCLK %s\n", port,
103 reg & MV88E6XXX_PORT_MAC_CTL_RGMII_DELAY_RXCLK ? "yes" : "no",
104 reg & MV88E6XXX_PORT_MAC_CTL_RGMII_DELAY_TXCLK ? "yes" : "no");
105
106 return 0;
107 }
108
mv88e6352_port_set_rgmii_delay(struct mv88e6xxx_chip * chip,int port,phy_interface_t mode)109 int mv88e6352_port_set_rgmii_delay(struct mv88e6xxx_chip *chip, int port,
110 phy_interface_t mode)
111 {
112 if (port < 5)
113 return -EOPNOTSUPP;
114
115 return mv88e6xxx_port_set_rgmii_delay(chip, port, mode);
116 }
117
mv88e6390_port_set_rgmii_delay(struct mv88e6xxx_chip * chip,int port,phy_interface_t mode)118 int mv88e6390_port_set_rgmii_delay(struct mv88e6xxx_chip *chip, int port,
119 phy_interface_t mode)
120 {
121 if (port != 0)
122 return -EOPNOTSUPP;
123
124 return mv88e6xxx_port_set_rgmii_delay(chip, port, mode);
125 }
126
mv88e6xxx_port_set_link(struct mv88e6xxx_chip * chip,int port,int link)127 int mv88e6xxx_port_set_link(struct mv88e6xxx_chip *chip, int port, int link)
128 {
129 u16 reg;
130 int err;
131
132 err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_MAC_CTL, ®);
133 if (err)
134 return err;
135
136 reg &= ~(MV88E6XXX_PORT_MAC_CTL_FORCE_LINK |
137 MV88E6XXX_PORT_MAC_CTL_LINK_UP);
138
139 switch (link) {
140 case LINK_FORCED_DOWN:
141 reg |= MV88E6XXX_PORT_MAC_CTL_FORCE_LINK;
142 break;
143 case LINK_FORCED_UP:
144 reg |= MV88E6XXX_PORT_MAC_CTL_FORCE_LINK |
145 MV88E6XXX_PORT_MAC_CTL_LINK_UP;
146 break;
147 case LINK_UNFORCED:
148 /* normal link detection */
149 break;
150 default:
151 return -EINVAL;
152 }
153
154 err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_MAC_CTL, reg);
155 if (err)
156 return err;
157
158 dev_dbg(chip->dev, "p%d: %s link %s\n", port,
159 reg & MV88E6XXX_PORT_MAC_CTL_FORCE_LINK ? "Force" : "Unforce",
160 reg & MV88E6XXX_PORT_MAC_CTL_LINK_UP ? "up" : "down");
161
162 return 0;
163 }
164
mv88e6xxx_port_set_duplex(struct mv88e6xxx_chip * chip,int port,int dup)165 int mv88e6xxx_port_set_duplex(struct mv88e6xxx_chip *chip, int port, int dup)
166 {
167 u16 reg;
168 int err;
169
170 err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_MAC_CTL, ®);
171 if (err)
172 return err;
173
174 reg &= ~(MV88E6XXX_PORT_MAC_CTL_FORCE_DUPLEX |
175 MV88E6XXX_PORT_MAC_CTL_DUPLEX_FULL);
176
177 switch (dup) {
178 case DUPLEX_HALF:
179 reg |= MV88E6XXX_PORT_MAC_CTL_FORCE_DUPLEX;
180 break;
181 case DUPLEX_FULL:
182 reg |= MV88E6XXX_PORT_MAC_CTL_FORCE_DUPLEX |
183 MV88E6XXX_PORT_MAC_CTL_DUPLEX_FULL;
184 break;
185 case DUPLEX_UNFORCED:
186 /* normal duplex detection */
187 break;
188 default:
189 return -EOPNOTSUPP;
190 }
191
192 err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_MAC_CTL, reg);
193 if (err)
194 return err;
195
196 dev_dbg(chip->dev, "p%d: %s %s duplex\n", port,
197 reg & MV88E6XXX_PORT_MAC_CTL_FORCE_DUPLEX ? "Force" : "Unforce",
198 reg & MV88E6XXX_PORT_MAC_CTL_DUPLEX_FULL ? "full" : "half");
199
200 return 0;
201 }
202
mv88e6xxx_port_set_speed(struct mv88e6xxx_chip * chip,int port,int speed,bool alt_bit,bool force_bit)203 static int mv88e6xxx_port_set_speed(struct mv88e6xxx_chip *chip, int port,
204 int speed, bool alt_bit, bool force_bit)
205 {
206 u16 reg, ctrl;
207 int err;
208
209 switch (speed) {
210 case 10:
211 ctrl = MV88E6XXX_PORT_MAC_CTL_SPEED_10;
212 break;
213 case 100:
214 ctrl = MV88E6XXX_PORT_MAC_CTL_SPEED_100;
215 break;
216 case 200:
217 if (alt_bit)
218 ctrl = MV88E6XXX_PORT_MAC_CTL_SPEED_100 |
219 MV88E6390_PORT_MAC_CTL_ALTSPEED;
220 else
221 ctrl = MV88E6065_PORT_MAC_CTL_SPEED_200;
222 break;
223 case 1000:
224 ctrl = MV88E6XXX_PORT_MAC_CTL_SPEED_1000;
225 break;
226 case 2500:
227 if (alt_bit)
228 ctrl = MV88E6390_PORT_MAC_CTL_SPEED_10000 |
229 MV88E6390_PORT_MAC_CTL_ALTSPEED;
230 else
231 ctrl = MV88E6390_PORT_MAC_CTL_SPEED_10000;
232 break;
233 case 10000:
234 /* all bits set, fall through... */
235 case SPEED_UNFORCED:
236 ctrl = MV88E6XXX_PORT_MAC_CTL_SPEED_UNFORCED;
237 break;
238 default:
239 return -EOPNOTSUPP;
240 }
241
242 err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_MAC_CTL, ®);
243 if (err)
244 return err;
245
246 reg &= ~MV88E6XXX_PORT_MAC_CTL_SPEED_MASK;
247 if (alt_bit)
248 reg &= ~MV88E6390_PORT_MAC_CTL_ALTSPEED;
249 if (force_bit) {
250 reg &= ~MV88E6390_PORT_MAC_CTL_FORCE_SPEED;
251 if (speed != SPEED_UNFORCED)
252 ctrl |= MV88E6390_PORT_MAC_CTL_FORCE_SPEED;
253 }
254 reg |= ctrl;
255
256 err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_MAC_CTL, reg);
257 if (err)
258 return err;
259
260 if (speed)
261 dev_dbg(chip->dev, "p%d: Speed set to %d Mbps\n", port, speed);
262 else
263 dev_dbg(chip->dev, "p%d: Speed unforced\n", port);
264
265 return 0;
266 }
267
268 /* Support 10, 100, 200 Mbps (e.g. 88E6065 family) */
mv88e6065_port_set_speed(struct mv88e6xxx_chip * chip,int port,int speed)269 int mv88e6065_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed)
270 {
271 if (speed == SPEED_MAX)
272 speed = 200;
273
274 if (speed > 200)
275 return -EOPNOTSUPP;
276
277 /* Setting 200 Mbps on port 0 to 3 selects 100 Mbps */
278 return mv88e6xxx_port_set_speed(chip, port, speed, false, false);
279 }
280
281 /* Support 10, 100, 1000 Mbps (e.g. 88E6185 family) */
mv88e6185_port_set_speed(struct mv88e6xxx_chip * chip,int port,int speed)282 int mv88e6185_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed)
283 {
284 if (speed == SPEED_MAX)
285 speed = 1000;
286
287 if (speed == 200 || speed > 1000)
288 return -EOPNOTSUPP;
289
290 return mv88e6xxx_port_set_speed(chip, port, speed, false, false);
291 }
292
293 /* Support 10, 100 Mbps (e.g. 88E6250 family) */
mv88e6250_port_set_speed(struct mv88e6xxx_chip * chip,int port,int speed)294 int mv88e6250_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed)
295 {
296 if (speed == SPEED_MAX)
297 speed = 100;
298
299 if (speed > 100)
300 return -EOPNOTSUPP;
301
302 return mv88e6xxx_port_set_speed(chip, port, speed, false, false);
303 }
304
305 /* Support 10, 100, 200, 1000, 2500 Mbps (e.g. 88E6341) */
mv88e6341_port_set_speed(struct mv88e6xxx_chip * chip,int port,int speed)306 int mv88e6341_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed)
307 {
308 if (speed == SPEED_MAX)
309 speed = port < 5 ? 1000 : 2500;
310
311 if (speed > 2500)
312 return -EOPNOTSUPP;
313
314 if (speed == 200 && port != 0)
315 return -EOPNOTSUPP;
316
317 if (speed == 2500 && port < 5)
318 return -EOPNOTSUPP;
319
320 return mv88e6xxx_port_set_speed(chip, port, speed, !port, true);
321 }
322
mv88e6341_port_max_speed_mode(int port)323 phy_interface_t mv88e6341_port_max_speed_mode(int port)
324 {
325 if (port == 5)
326 return PHY_INTERFACE_MODE_2500BASEX;
327
328 return PHY_INTERFACE_MODE_NA;
329 }
330
331 /* Support 10, 100, 200, 1000 Mbps (e.g. 88E6352 family) */
mv88e6352_port_set_speed(struct mv88e6xxx_chip * chip,int port,int speed)332 int mv88e6352_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed)
333 {
334 if (speed == SPEED_MAX)
335 speed = 1000;
336
337 if (speed > 1000)
338 return -EOPNOTSUPP;
339
340 if (speed == 200 && port < 5)
341 return -EOPNOTSUPP;
342
343 return mv88e6xxx_port_set_speed(chip, port, speed, true, false);
344 }
345
346 /* Support 10, 100, 200, 1000, 2500 Mbps (e.g. 88E6390) */
mv88e6390_port_set_speed(struct mv88e6xxx_chip * chip,int port,int speed)347 int mv88e6390_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed)
348 {
349 if (speed == SPEED_MAX)
350 speed = port < 9 ? 1000 : 2500;
351
352 if (speed > 2500)
353 return -EOPNOTSUPP;
354
355 if (speed == 200 && port != 0)
356 return -EOPNOTSUPP;
357
358 if (speed == 2500 && port < 9)
359 return -EOPNOTSUPP;
360
361 return mv88e6xxx_port_set_speed(chip, port, speed, true, true);
362 }
363
mv88e6390_port_max_speed_mode(int port)364 phy_interface_t mv88e6390_port_max_speed_mode(int port)
365 {
366 if (port == 9 || port == 10)
367 return PHY_INTERFACE_MODE_2500BASEX;
368
369 return PHY_INTERFACE_MODE_NA;
370 }
371
372 /* Support 10, 100, 200, 1000, 2500, 10000 Mbps (e.g. 88E6190X) */
mv88e6390x_port_set_speed(struct mv88e6xxx_chip * chip,int port,int speed)373 int mv88e6390x_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed)
374 {
375 if (speed == SPEED_MAX)
376 speed = port < 9 ? 1000 : 10000;
377
378 if (speed == 200 && port != 0)
379 return -EOPNOTSUPP;
380
381 if (speed >= 2500 && port < 9)
382 return -EOPNOTSUPP;
383
384 return mv88e6xxx_port_set_speed(chip, port, speed, true, true);
385 }
386
mv88e6390x_port_max_speed_mode(int port)387 phy_interface_t mv88e6390x_port_max_speed_mode(int port)
388 {
389 if (port == 9 || port == 10)
390 return PHY_INTERFACE_MODE_XAUI;
391
392 return PHY_INTERFACE_MODE_NA;
393 }
394
mv88e6xxx_port_set_cmode(struct mv88e6xxx_chip * chip,int port,phy_interface_t mode)395 static int mv88e6xxx_port_set_cmode(struct mv88e6xxx_chip *chip, int port,
396 phy_interface_t mode)
397 {
398 u8 lane;
399 u16 cmode;
400 u16 reg;
401 int err;
402
403 /* Default to a slow mode, so freeing up SERDES interfaces for
404 * other ports which might use them for SFPs.
405 */
406 if (mode == PHY_INTERFACE_MODE_NA)
407 mode = PHY_INTERFACE_MODE_1000BASEX;
408
409 switch (mode) {
410 case PHY_INTERFACE_MODE_1000BASEX:
411 cmode = MV88E6XXX_PORT_STS_CMODE_1000BASEX;
412 break;
413 case PHY_INTERFACE_MODE_SGMII:
414 cmode = MV88E6XXX_PORT_STS_CMODE_SGMII;
415 break;
416 case PHY_INTERFACE_MODE_2500BASEX:
417 cmode = MV88E6XXX_PORT_STS_CMODE_2500BASEX;
418 break;
419 case PHY_INTERFACE_MODE_XGMII:
420 case PHY_INTERFACE_MODE_XAUI:
421 cmode = MV88E6XXX_PORT_STS_CMODE_XAUI;
422 break;
423 case PHY_INTERFACE_MODE_RXAUI:
424 cmode = MV88E6XXX_PORT_STS_CMODE_RXAUI;
425 break;
426 default:
427 cmode = 0;
428 }
429
430 /* cmode doesn't change, nothing to do for us */
431 if (cmode == chip->ports[port].cmode)
432 return 0;
433
434 lane = mv88e6xxx_serdes_get_lane(chip, port);
435 if (lane) {
436 if (chip->ports[port].serdes_irq) {
437 err = mv88e6xxx_serdes_irq_disable(chip, port, lane);
438 if (err)
439 return err;
440 }
441
442 err = mv88e6xxx_serdes_power_down(chip, port, lane);
443 if (err)
444 return err;
445 }
446
447 chip->ports[port].cmode = 0;
448
449 if (cmode) {
450 err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_STS, ®);
451 if (err)
452 return err;
453
454 reg &= ~MV88E6XXX_PORT_STS_CMODE_MASK;
455 reg |= cmode;
456
457 err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_STS, reg);
458 if (err)
459 return err;
460
461 chip->ports[port].cmode = cmode;
462
463 lane = mv88e6xxx_serdes_get_lane(chip, port);
464 if (!lane)
465 return -ENODEV;
466
467 err = mv88e6xxx_serdes_power_up(chip, port, lane);
468 if (err)
469 return err;
470
471 if (chip->ports[port].serdes_irq) {
472 err = mv88e6xxx_serdes_irq_enable(chip, port, lane);
473 if (err)
474 return err;
475 }
476 }
477
478 return 0;
479 }
480
mv88e6390x_port_set_cmode(struct mv88e6xxx_chip * chip,int port,phy_interface_t mode)481 int mv88e6390x_port_set_cmode(struct mv88e6xxx_chip *chip, int port,
482 phy_interface_t mode)
483 {
484 if (port != 9 && port != 10)
485 return -EOPNOTSUPP;
486
487 return mv88e6xxx_port_set_cmode(chip, port, mode);
488 }
489
mv88e6390_port_set_cmode(struct mv88e6xxx_chip * chip,int port,phy_interface_t mode)490 int mv88e6390_port_set_cmode(struct mv88e6xxx_chip *chip, int port,
491 phy_interface_t mode)
492 {
493 if (port != 9 && port != 10)
494 return -EOPNOTSUPP;
495
496 switch (mode) {
497 case PHY_INTERFACE_MODE_NA:
498 return 0;
499 case PHY_INTERFACE_MODE_XGMII:
500 case PHY_INTERFACE_MODE_XAUI:
501 case PHY_INTERFACE_MODE_RXAUI:
502 return -EINVAL;
503 default:
504 break;
505 }
506
507 return mv88e6xxx_port_set_cmode(chip, port, mode);
508 }
509
mv88e6341_port_set_cmode_writable(struct mv88e6xxx_chip * chip,int port)510 static int mv88e6341_port_set_cmode_writable(struct mv88e6xxx_chip *chip,
511 int port)
512 {
513 int err, addr;
514 u16 reg, bits;
515
516 if (port != 5)
517 return -EOPNOTSUPP;
518
519 addr = chip->info->port_base_addr + port;
520
521 err = mv88e6xxx_port_hidden_read(chip, 0x7, addr, 0, ®);
522 if (err)
523 return err;
524
525 bits = MV88E6341_PORT_RESERVED_1A_FORCE_CMODE |
526 MV88E6341_PORT_RESERVED_1A_SGMII_AN;
527
528 if ((reg & bits) == bits)
529 return 0;
530
531 reg |= bits;
532 return mv88e6xxx_port_hidden_write(chip, 0x7, addr, 0, reg);
533 }
534
mv88e6341_port_set_cmode(struct mv88e6xxx_chip * chip,int port,phy_interface_t mode)535 int mv88e6341_port_set_cmode(struct mv88e6xxx_chip *chip, int port,
536 phy_interface_t mode)
537 {
538 int err;
539
540 if (port != 5)
541 return -EOPNOTSUPP;
542
543 switch (mode) {
544 case PHY_INTERFACE_MODE_NA:
545 return 0;
546 case PHY_INTERFACE_MODE_XGMII:
547 case PHY_INTERFACE_MODE_XAUI:
548 case PHY_INTERFACE_MODE_RXAUI:
549 return -EINVAL;
550 default:
551 break;
552 }
553
554 err = mv88e6341_port_set_cmode_writable(chip, port);
555 if (err)
556 return err;
557
558 return mv88e6xxx_port_set_cmode(chip, port, mode);
559 }
560
mv88e6185_port_get_cmode(struct mv88e6xxx_chip * chip,int port,u8 * cmode)561 int mv88e6185_port_get_cmode(struct mv88e6xxx_chip *chip, int port, u8 *cmode)
562 {
563 int err;
564 u16 reg;
565
566 err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_STS, ®);
567 if (err)
568 return err;
569
570 *cmode = reg & MV88E6185_PORT_STS_CMODE_MASK;
571
572 return 0;
573 }
574
mv88e6352_port_get_cmode(struct mv88e6xxx_chip * chip,int port,u8 * cmode)575 int mv88e6352_port_get_cmode(struct mv88e6xxx_chip *chip, int port, u8 *cmode)
576 {
577 int err;
578 u16 reg;
579
580 err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_STS, ®);
581 if (err)
582 return err;
583
584 *cmode = reg & MV88E6XXX_PORT_STS_CMODE_MASK;
585
586 return 0;
587 }
588
mv88e6250_port_link_state(struct mv88e6xxx_chip * chip,int port,struct phylink_link_state * state)589 int mv88e6250_port_link_state(struct mv88e6xxx_chip *chip, int port,
590 struct phylink_link_state *state)
591 {
592 int err;
593 u16 reg;
594
595 err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_STS, ®);
596 if (err)
597 return err;
598
599 if (port < 5) {
600 switch (reg & MV88E6250_PORT_STS_PORTMODE_MASK) {
601 case MV88E6250_PORT_STS_PORTMODE_PHY_10_HALF:
602 state->speed = SPEED_10;
603 state->duplex = DUPLEX_HALF;
604 break;
605 case MV88E6250_PORT_STS_PORTMODE_PHY_100_HALF:
606 state->speed = SPEED_100;
607 state->duplex = DUPLEX_HALF;
608 break;
609 case MV88E6250_PORT_STS_PORTMODE_PHY_10_FULL:
610 state->speed = SPEED_10;
611 state->duplex = DUPLEX_FULL;
612 break;
613 case MV88E6250_PORT_STS_PORTMODE_PHY_100_FULL:
614 state->speed = SPEED_100;
615 state->duplex = DUPLEX_FULL;
616 break;
617 default:
618 state->speed = SPEED_UNKNOWN;
619 state->duplex = DUPLEX_UNKNOWN;
620 break;
621 }
622 } else {
623 switch (reg & MV88E6250_PORT_STS_PORTMODE_MASK) {
624 case MV88E6250_PORT_STS_PORTMODE_MII_10_HALF:
625 state->speed = SPEED_10;
626 state->duplex = DUPLEX_HALF;
627 break;
628 case MV88E6250_PORT_STS_PORTMODE_MII_100_HALF:
629 state->speed = SPEED_100;
630 state->duplex = DUPLEX_HALF;
631 break;
632 case MV88E6250_PORT_STS_PORTMODE_MII_10_FULL:
633 state->speed = SPEED_10;
634 state->duplex = DUPLEX_FULL;
635 break;
636 case MV88E6250_PORT_STS_PORTMODE_MII_100_FULL:
637 state->speed = SPEED_100;
638 state->duplex = DUPLEX_FULL;
639 break;
640 default:
641 state->speed = SPEED_UNKNOWN;
642 state->duplex = DUPLEX_UNKNOWN;
643 break;
644 }
645 }
646
647 state->link = !!(reg & MV88E6250_PORT_STS_LINK);
648 state->an_enabled = 1;
649 state->an_complete = state->link;
650 state->interface = PHY_INTERFACE_MODE_NA;
651
652 return 0;
653 }
654
mv88e6352_port_link_state(struct mv88e6xxx_chip * chip,int port,struct phylink_link_state * state)655 int mv88e6352_port_link_state(struct mv88e6xxx_chip *chip, int port,
656 struct phylink_link_state *state)
657 {
658 int err;
659 u16 reg;
660
661 switch (chip->ports[port].cmode) {
662 case MV88E6XXX_PORT_STS_CMODE_RGMII:
663 err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_MAC_CTL,
664 ®);
665 if (err)
666 return err;
667
668 if ((reg & MV88E6XXX_PORT_MAC_CTL_RGMII_DELAY_RXCLK) &&
669 (reg & MV88E6XXX_PORT_MAC_CTL_RGMII_DELAY_TXCLK))
670 state->interface = PHY_INTERFACE_MODE_RGMII_ID;
671 else if (reg & MV88E6XXX_PORT_MAC_CTL_RGMII_DELAY_RXCLK)
672 state->interface = PHY_INTERFACE_MODE_RGMII_RXID;
673 else if (reg & MV88E6XXX_PORT_MAC_CTL_RGMII_DELAY_TXCLK)
674 state->interface = PHY_INTERFACE_MODE_RGMII_TXID;
675 else
676 state->interface = PHY_INTERFACE_MODE_RGMII;
677 break;
678 case MV88E6XXX_PORT_STS_CMODE_1000BASEX:
679 state->interface = PHY_INTERFACE_MODE_1000BASEX;
680 break;
681 case MV88E6XXX_PORT_STS_CMODE_SGMII:
682 state->interface = PHY_INTERFACE_MODE_SGMII;
683 break;
684 case MV88E6XXX_PORT_STS_CMODE_2500BASEX:
685 state->interface = PHY_INTERFACE_MODE_2500BASEX;
686 break;
687 case MV88E6XXX_PORT_STS_CMODE_XAUI:
688 state->interface = PHY_INTERFACE_MODE_XAUI;
689 break;
690 case MV88E6XXX_PORT_STS_CMODE_RXAUI:
691 state->interface = PHY_INTERFACE_MODE_RXAUI;
692 break;
693 default:
694 /* we do not support other cmode values here */
695 state->interface = PHY_INTERFACE_MODE_NA;
696 }
697
698 err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_STS, ®);
699 if (err)
700 return err;
701
702 switch (reg & MV88E6XXX_PORT_STS_SPEED_MASK) {
703 case MV88E6XXX_PORT_STS_SPEED_10:
704 state->speed = SPEED_10;
705 break;
706 case MV88E6XXX_PORT_STS_SPEED_100:
707 state->speed = SPEED_100;
708 break;
709 case MV88E6XXX_PORT_STS_SPEED_1000:
710 state->speed = SPEED_1000;
711 break;
712 case MV88E6XXX_PORT_STS_SPEED_10000:
713 if ((reg & MV88E6XXX_PORT_STS_CMODE_MASK) ==
714 MV88E6XXX_PORT_STS_CMODE_2500BASEX)
715 state->speed = SPEED_2500;
716 else
717 state->speed = SPEED_10000;
718 break;
719 }
720
721 state->duplex = reg & MV88E6XXX_PORT_STS_DUPLEX ?
722 DUPLEX_FULL : DUPLEX_HALF;
723 state->link = !!(reg & MV88E6XXX_PORT_STS_LINK);
724 state->an_enabled = 1;
725 state->an_complete = state->link;
726
727 return 0;
728 }
729
mv88e6185_port_link_state(struct mv88e6xxx_chip * chip,int port,struct phylink_link_state * state)730 int mv88e6185_port_link_state(struct mv88e6xxx_chip *chip, int port,
731 struct phylink_link_state *state)
732 {
733 if (state->interface == PHY_INTERFACE_MODE_1000BASEX) {
734 u8 cmode = chip->ports[port].cmode;
735
736 /* When a port is in "Cross-chip serdes" mode, it uses
737 * 1000Base-X full duplex mode, but there is no automatic
738 * link detection. Use the sync OK status for link (as it
739 * would do for 1000Base-X mode.)
740 */
741 if (cmode == MV88E6185_PORT_STS_CMODE_SERDES) {
742 u16 mac;
743 int err;
744
745 err = mv88e6xxx_port_read(chip, port,
746 MV88E6XXX_PORT_MAC_CTL, &mac);
747 if (err)
748 return err;
749
750 state->link = !!(mac & MV88E6185_PORT_MAC_CTL_SYNC_OK);
751 state->an_enabled = 1;
752 state->an_complete =
753 !!(mac & MV88E6185_PORT_MAC_CTL_AN_DONE);
754 state->duplex =
755 state->link ? DUPLEX_FULL : DUPLEX_UNKNOWN;
756 state->speed =
757 state->link ? SPEED_1000 : SPEED_UNKNOWN;
758
759 return 0;
760 }
761 }
762
763 return mv88e6352_port_link_state(chip, port, state);
764 }
765
766 /* Offset 0x02: Jamming Control
767 *
768 * Do not limit the period of time that this port can be paused for by
769 * the remote end or the period of time that this port can pause the
770 * remote end.
771 */
mv88e6097_port_pause_limit(struct mv88e6xxx_chip * chip,int port,u8 in,u8 out)772 int mv88e6097_port_pause_limit(struct mv88e6xxx_chip *chip, int port, u8 in,
773 u8 out)
774 {
775 return mv88e6xxx_port_write(chip, port, MV88E6097_PORT_JAM_CTL,
776 out << 8 | in);
777 }
778
mv88e6390_port_pause_limit(struct mv88e6xxx_chip * chip,int port,u8 in,u8 out)779 int mv88e6390_port_pause_limit(struct mv88e6xxx_chip *chip, int port, u8 in,
780 u8 out)
781 {
782 int err;
783
784 err = mv88e6xxx_port_write(chip, port, MV88E6390_PORT_FLOW_CTL,
785 MV88E6390_PORT_FLOW_CTL_UPDATE |
786 MV88E6390_PORT_FLOW_CTL_LIMIT_IN | in);
787 if (err)
788 return err;
789
790 return mv88e6xxx_port_write(chip, port, MV88E6390_PORT_FLOW_CTL,
791 MV88E6390_PORT_FLOW_CTL_UPDATE |
792 MV88E6390_PORT_FLOW_CTL_LIMIT_OUT | out);
793 }
794
795 /* Offset 0x04: Port Control Register */
796
797 static const char * const mv88e6xxx_port_state_names[] = {
798 [MV88E6XXX_PORT_CTL0_STATE_DISABLED] = "Disabled",
799 [MV88E6XXX_PORT_CTL0_STATE_BLOCKING] = "Blocking/Listening",
800 [MV88E6XXX_PORT_CTL0_STATE_LEARNING] = "Learning",
801 [MV88E6XXX_PORT_CTL0_STATE_FORWARDING] = "Forwarding",
802 };
803
mv88e6xxx_port_set_state(struct mv88e6xxx_chip * chip,int port,u8 state)804 int mv88e6xxx_port_set_state(struct mv88e6xxx_chip *chip, int port, u8 state)
805 {
806 u16 reg;
807 int err;
808
809 err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL0, ®);
810 if (err)
811 return err;
812
813 reg &= ~MV88E6XXX_PORT_CTL0_STATE_MASK;
814
815 switch (state) {
816 case BR_STATE_DISABLED:
817 state = MV88E6XXX_PORT_CTL0_STATE_DISABLED;
818 break;
819 case BR_STATE_BLOCKING:
820 case BR_STATE_LISTENING:
821 state = MV88E6XXX_PORT_CTL0_STATE_BLOCKING;
822 break;
823 case BR_STATE_LEARNING:
824 state = MV88E6XXX_PORT_CTL0_STATE_LEARNING;
825 break;
826 case BR_STATE_FORWARDING:
827 state = MV88E6XXX_PORT_CTL0_STATE_FORWARDING;
828 break;
829 default:
830 return -EINVAL;
831 }
832
833 reg |= state;
834
835 err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL0, reg);
836 if (err)
837 return err;
838
839 dev_dbg(chip->dev, "p%d: PortState set to %s\n", port,
840 mv88e6xxx_port_state_names[state]);
841
842 return 0;
843 }
844
mv88e6xxx_port_set_egress_mode(struct mv88e6xxx_chip * chip,int port,enum mv88e6xxx_egress_mode mode)845 int mv88e6xxx_port_set_egress_mode(struct mv88e6xxx_chip *chip, int port,
846 enum mv88e6xxx_egress_mode mode)
847 {
848 int err;
849 u16 reg;
850
851 err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL0, ®);
852 if (err)
853 return err;
854
855 reg &= ~MV88E6XXX_PORT_CTL0_EGRESS_MODE_MASK;
856
857 switch (mode) {
858 case MV88E6XXX_EGRESS_MODE_UNMODIFIED:
859 reg |= MV88E6XXX_PORT_CTL0_EGRESS_MODE_UNMODIFIED;
860 break;
861 case MV88E6XXX_EGRESS_MODE_UNTAGGED:
862 reg |= MV88E6XXX_PORT_CTL0_EGRESS_MODE_UNTAGGED;
863 break;
864 case MV88E6XXX_EGRESS_MODE_TAGGED:
865 reg |= MV88E6XXX_PORT_CTL0_EGRESS_MODE_TAGGED;
866 break;
867 case MV88E6XXX_EGRESS_MODE_ETHERTYPE:
868 reg |= MV88E6XXX_PORT_CTL0_EGRESS_MODE_ETHER_TYPE_DSA;
869 break;
870 default:
871 return -EINVAL;
872 }
873
874 return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL0, reg);
875 }
876
mv88e6085_port_set_frame_mode(struct mv88e6xxx_chip * chip,int port,enum mv88e6xxx_frame_mode mode)877 int mv88e6085_port_set_frame_mode(struct mv88e6xxx_chip *chip, int port,
878 enum mv88e6xxx_frame_mode mode)
879 {
880 int err;
881 u16 reg;
882
883 err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL0, ®);
884 if (err)
885 return err;
886
887 reg &= ~MV88E6XXX_PORT_CTL0_FRAME_MODE_MASK;
888
889 switch (mode) {
890 case MV88E6XXX_FRAME_MODE_NORMAL:
891 reg |= MV88E6XXX_PORT_CTL0_FRAME_MODE_NORMAL;
892 break;
893 case MV88E6XXX_FRAME_MODE_DSA:
894 reg |= MV88E6XXX_PORT_CTL0_FRAME_MODE_DSA;
895 break;
896 default:
897 return -EINVAL;
898 }
899
900 return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL0, reg);
901 }
902
mv88e6351_port_set_frame_mode(struct mv88e6xxx_chip * chip,int port,enum mv88e6xxx_frame_mode mode)903 int mv88e6351_port_set_frame_mode(struct mv88e6xxx_chip *chip, int port,
904 enum mv88e6xxx_frame_mode mode)
905 {
906 int err;
907 u16 reg;
908
909 err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL0, ®);
910 if (err)
911 return err;
912
913 reg &= ~MV88E6XXX_PORT_CTL0_FRAME_MODE_MASK;
914
915 switch (mode) {
916 case MV88E6XXX_FRAME_MODE_NORMAL:
917 reg |= MV88E6XXX_PORT_CTL0_FRAME_MODE_NORMAL;
918 break;
919 case MV88E6XXX_FRAME_MODE_DSA:
920 reg |= MV88E6XXX_PORT_CTL0_FRAME_MODE_DSA;
921 break;
922 case MV88E6XXX_FRAME_MODE_PROVIDER:
923 reg |= MV88E6XXX_PORT_CTL0_FRAME_MODE_PROVIDER;
924 break;
925 case MV88E6XXX_FRAME_MODE_ETHERTYPE:
926 reg |= MV88E6XXX_PORT_CTL0_FRAME_MODE_ETHER_TYPE_DSA;
927 break;
928 default:
929 return -EINVAL;
930 }
931
932 return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL0, reg);
933 }
934
mv88e6185_port_set_forward_unknown(struct mv88e6xxx_chip * chip,int port,bool unicast)935 static int mv88e6185_port_set_forward_unknown(struct mv88e6xxx_chip *chip,
936 int port, bool unicast)
937 {
938 int err;
939 u16 reg;
940
941 err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL0, ®);
942 if (err)
943 return err;
944
945 if (unicast)
946 reg |= MV88E6185_PORT_CTL0_FORWARD_UNKNOWN;
947 else
948 reg &= ~MV88E6185_PORT_CTL0_FORWARD_UNKNOWN;
949
950 return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL0, reg);
951 }
952
mv88e6352_port_set_egress_floods(struct mv88e6xxx_chip * chip,int port,bool unicast,bool multicast)953 int mv88e6352_port_set_egress_floods(struct mv88e6xxx_chip *chip, int port,
954 bool unicast, bool multicast)
955 {
956 int err;
957 u16 reg;
958
959 err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL0, ®);
960 if (err)
961 return err;
962
963 reg &= ~MV88E6352_PORT_CTL0_EGRESS_FLOODS_MASK;
964
965 if (unicast && multicast)
966 reg |= MV88E6352_PORT_CTL0_EGRESS_FLOODS_ALL_UNKNOWN_DA;
967 else if (unicast)
968 reg |= MV88E6352_PORT_CTL0_EGRESS_FLOODS_NO_UNKNOWN_MC_DA;
969 else if (multicast)
970 reg |= MV88E6352_PORT_CTL0_EGRESS_FLOODS_NO_UNKNOWN_UC_DA;
971 else
972 reg |= MV88E6352_PORT_CTL0_EGRESS_FLOODS_NO_UNKNOWN_DA;
973
974 return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL0, reg);
975 }
976
977 /* Offset 0x05: Port Control 1 */
978
mv88e6xxx_port_set_message_port(struct mv88e6xxx_chip * chip,int port,bool message_port)979 int mv88e6xxx_port_set_message_port(struct mv88e6xxx_chip *chip, int port,
980 bool message_port)
981 {
982 u16 val;
983 int err;
984
985 err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL1, &val);
986 if (err)
987 return err;
988
989 if (message_port)
990 val |= MV88E6XXX_PORT_CTL1_MESSAGE_PORT;
991 else
992 val &= ~MV88E6XXX_PORT_CTL1_MESSAGE_PORT;
993
994 return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL1, val);
995 }
996
997 /* Offset 0x06: Port Based VLAN Map */
998
mv88e6xxx_port_set_vlan_map(struct mv88e6xxx_chip * chip,int port,u16 map)999 int mv88e6xxx_port_set_vlan_map(struct mv88e6xxx_chip *chip, int port, u16 map)
1000 {
1001 const u16 mask = mv88e6xxx_port_mask(chip);
1002 u16 reg;
1003 int err;
1004
1005 err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_BASE_VLAN, ®);
1006 if (err)
1007 return err;
1008
1009 reg &= ~mask;
1010 reg |= map & mask;
1011
1012 err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_BASE_VLAN, reg);
1013 if (err)
1014 return err;
1015
1016 dev_dbg(chip->dev, "p%d: VLANTable set to %.3x\n", port, map);
1017
1018 return 0;
1019 }
1020
mv88e6xxx_port_get_fid(struct mv88e6xxx_chip * chip,int port,u16 * fid)1021 int mv88e6xxx_port_get_fid(struct mv88e6xxx_chip *chip, int port, u16 *fid)
1022 {
1023 const u16 upper_mask = (mv88e6xxx_num_databases(chip) - 1) >> 4;
1024 u16 reg;
1025 int err;
1026
1027 /* Port's default FID lower 4 bits are located in reg 0x06, offset 12 */
1028 err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_BASE_VLAN, ®);
1029 if (err)
1030 return err;
1031
1032 *fid = (reg & 0xf000) >> 12;
1033
1034 /* Port's default FID upper bits are located in reg 0x05, offset 0 */
1035 if (upper_mask) {
1036 err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL1,
1037 ®);
1038 if (err)
1039 return err;
1040
1041 *fid |= (reg & upper_mask) << 4;
1042 }
1043
1044 return 0;
1045 }
1046
mv88e6xxx_port_set_fid(struct mv88e6xxx_chip * chip,int port,u16 fid)1047 int mv88e6xxx_port_set_fid(struct mv88e6xxx_chip *chip, int port, u16 fid)
1048 {
1049 const u16 upper_mask = (mv88e6xxx_num_databases(chip) - 1) >> 4;
1050 u16 reg;
1051 int err;
1052
1053 if (fid >= mv88e6xxx_num_databases(chip))
1054 return -EINVAL;
1055
1056 /* Port's default FID lower 4 bits are located in reg 0x06, offset 12 */
1057 err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_BASE_VLAN, ®);
1058 if (err)
1059 return err;
1060
1061 reg &= 0x0fff;
1062 reg |= (fid & 0x000f) << 12;
1063
1064 err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_BASE_VLAN, reg);
1065 if (err)
1066 return err;
1067
1068 /* Port's default FID upper bits are located in reg 0x05, offset 0 */
1069 if (upper_mask) {
1070 err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL1,
1071 ®);
1072 if (err)
1073 return err;
1074
1075 reg &= ~upper_mask;
1076 reg |= (fid >> 4) & upper_mask;
1077
1078 err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL1,
1079 reg);
1080 if (err)
1081 return err;
1082 }
1083
1084 dev_dbg(chip->dev, "p%d: FID set to %u\n", port, fid);
1085
1086 return 0;
1087 }
1088
1089 /* Offset 0x07: Default Port VLAN ID & Priority */
1090
mv88e6xxx_port_get_pvid(struct mv88e6xxx_chip * chip,int port,u16 * pvid)1091 int mv88e6xxx_port_get_pvid(struct mv88e6xxx_chip *chip, int port, u16 *pvid)
1092 {
1093 u16 reg;
1094 int err;
1095
1096 err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_DEFAULT_VLAN,
1097 ®);
1098 if (err)
1099 return err;
1100
1101 *pvid = reg & MV88E6XXX_PORT_DEFAULT_VLAN_MASK;
1102
1103 return 0;
1104 }
1105
mv88e6xxx_port_set_pvid(struct mv88e6xxx_chip * chip,int port,u16 pvid)1106 int mv88e6xxx_port_set_pvid(struct mv88e6xxx_chip *chip, int port, u16 pvid)
1107 {
1108 u16 reg;
1109 int err;
1110
1111 err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_DEFAULT_VLAN,
1112 ®);
1113 if (err)
1114 return err;
1115
1116 reg &= ~MV88E6XXX_PORT_DEFAULT_VLAN_MASK;
1117 reg |= pvid & MV88E6XXX_PORT_DEFAULT_VLAN_MASK;
1118
1119 err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_DEFAULT_VLAN,
1120 reg);
1121 if (err)
1122 return err;
1123
1124 dev_dbg(chip->dev, "p%d: DefaultVID set to %u\n", port, pvid);
1125
1126 return 0;
1127 }
1128
1129 /* Offset 0x08: Port Control 2 Register */
1130
1131 static const char * const mv88e6xxx_port_8021q_mode_names[] = {
1132 [MV88E6XXX_PORT_CTL2_8021Q_MODE_DISABLED] = "Disabled",
1133 [MV88E6XXX_PORT_CTL2_8021Q_MODE_FALLBACK] = "Fallback",
1134 [MV88E6XXX_PORT_CTL2_8021Q_MODE_CHECK] = "Check",
1135 [MV88E6XXX_PORT_CTL2_8021Q_MODE_SECURE] = "Secure",
1136 };
1137
mv88e6185_port_set_default_forward(struct mv88e6xxx_chip * chip,int port,bool multicast)1138 static int mv88e6185_port_set_default_forward(struct mv88e6xxx_chip *chip,
1139 int port, bool multicast)
1140 {
1141 int err;
1142 u16 reg;
1143
1144 err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL2, ®);
1145 if (err)
1146 return err;
1147
1148 if (multicast)
1149 reg |= MV88E6XXX_PORT_CTL2_DEFAULT_FORWARD;
1150 else
1151 reg &= ~MV88E6XXX_PORT_CTL2_DEFAULT_FORWARD;
1152
1153 return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL2, reg);
1154 }
1155
mv88e6185_port_set_egress_floods(struct mv88e6xxx_chip * chip,int port,bool unicast,bool multicast)1156 int mv88e6185_port_set_egress_floods(struct mv88e6xxx_chip *chip, int port,
1157 bool unicast, bool multicast)
1158 {
1159 int err;
1160
1161 err = mv88e6185_port_set_forward_unknown(chip, port, unicast);
1162 if (err)
1163 return err;
1164
1165 return mv88e6185_port_set_default_forward(chip, port, multicast);
1166 }
1167
mv88e6095_port_set_upstream_port(struct mv88e6xxx_chip * chip,int port,int upstream_port)1168 int mv88e6095_port_set_upstream_port(struct mv88e6xxx_chip *chip, int port,
1169 int upstream_port)
1170 {
1171 int err;
1172 u16 reg;
1173
1174 err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL2, ®);
1175 if (err)
1176 return err;
1177
1178 reg &= ~MV88E6095_PORT_CTL2_CPU_PORT_MASK;
1179 reg |= upstream_port;
1180
1181 return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL2, reg);
1182 }
1183
mv88e6xxx_port_set_8021q_mode(struct mv88e6xxx_chip * chip,int port,u16 mode)1184 int mv88e6xxx_port_set_8021q_mode(struct mv88e6xxx_chip *chip, int port,
1185 u16 mode)
1186 {
1187 u16 reg;
1188 int err;
1189
1190 err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL2, ®);
1191 if (err)
1192 return err;
1193
1194 reg &= ~MV88E6XXX_PORT_CTL2_8021Q_MODE_MASK;
1195 reg |= mode & MV88E6XXX_PORT_CTL2_8021Q_MODE_MASK;
1196
1197 err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL2, reg);
1198 if (err)
1199 return err;
1200
1201 dev_dbg(chip->dev, "p%d: 802.1QMode set to %s\n", port,
1202 mv88e6xxx_port_8021q_mode_names[mode]);
1203
1204 return 0;
1205 }
1206
mv88e6xxx_port_set_map_da(struct mv88e6xxx_chip * chip,int port)1207 int mv88e6xxx_port_set_map_da(struct mv88e6xxx_chip *chip, int port)
1208 {
1209 u16 reg;
1210 int err;
1211
1212 err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL2, ®);
1213 if (err)
1214 return err;
1215
1216 reg |= MV88E6XXX_PORT_CTL2_MAP_DA;
1217
1218 return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL2, reg);
1219 }
1220
mv88e6165_port_set_jumbo_size(struct mv88e6xxx_chip * chip,int port,size_t size)1221 int mv88e6165_port_set_jumbo_size(struct mv88e6xxx_chip *chip, int port,
1222 size_t size)
1223 {
1224 u16 reg;
1225 int err;
1226
1227 err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL2, ®);
1228 if (err)
1229 return err;
1230
1231 reg &= ~MV88E6XXX_PORT_CTL2_JUMBO_MODE_MASK;
1232
1233 if (size <= 1522)
1234 reg |= MV88E6XXX_PORT_CTL2_JUMBO_MODE_1522;
1235 else if (size <= 2048)
1236 reg |= MV88E6XXX_PORT_CTL2_JUMBO_MODE_2048;
1237 else if (size <= 10240)
1238 reg |= MV88E6XXX_PORT_CTL2_JUMBO_MODE_10240;
1239 else
1240 return -ERANGE;
1241
1242 return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL2, reg);
1243 }
1244
1245 /* Offset 0x09: Port Rate Control */
1246
mv88e6095_port_egress_rate_limiting(struct mv88e6xxx_chip * chip,int port)1247 int mv88e6095_port_egress_rate_limiting(struct mv88e6xxx_chip *chip, int port)
1248 {
1249 return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_EGRESS_RATE_CTL1,
1250 0x0000);
1251 }
1252
mv88e6097_port_egress_rate_limiting(struct mv88e6xxx_chip * chip,int port)1253 int mv88e6097_port_egress_rate_limiting(struct mv88e6xxx_chip *chip, int port)
1254 {
1255 return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_EGRESS_RATE_CTL1,
1256 0x0001);
1257 }
1258
1259 /* Offset 0x0C: Port ATU Control */
1260
mv88e6xxx_port_disable_learn_limit(struct mv88e6xxx_chip * chip,int port)1261 int mv88e6xxx_port_disable_learn_limit(struct mv88e6xxx_chip *chip, int port)
1262 {
1263 return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_ATU_CTL, 0);
1264 }
1265
1266 /* Offset 0x0D: (Priority) Override Register */
1267
mv88e6xxx_port_disable_pri_override(struct mv88e6xxx_chip * chip,int port)1268 int mv88e6xxx_port_disable_pri_override(struct mv88e6xxx_chip *chip, int port)
1269 {
1270 return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_PRI_OVERRIDE, 0);
1271 }
1272
1273 /* Offset 0x0f: Port Ether type */
1274
mv88e6351_port_set_ether_type(struct mv88e6xxx_chip * chip,int port,u16 etype)1275 int mv88e6351_port_set_ether_type(struct mv88e6xxx_chip *chip, int port,
1276 u16 etype)
1277 {
1278 return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_ETH_TYPE, etype);
1279 }
1280
1281 /* Offset 0x18: Port IEEE Priority Remapping Registers [0-3]
1282 * Offset 0x19: Port IEEE Priority Remapping Registers [4-7]
1283 */
1284
mv88e6095_port_tag_remap(struct mv88e6xxx_chip * chip,int port)1285 int mv88e6095_port_tag_remap(struct mv88e6xxx_chip *chip, int port)
1286 {
1287 int err;
1288
1289 /* Use a direct priority mapping for all IEEE tagged frames */
1290 err = mv88e6xxx_port_write(chip, port,
1291 MV88E6095_PORT_IEEE_PRIO_REMAP_0123,
1292 0x3210);
1293 if (err)
1294 return err;
1295
1296 return mv88e6xxx_port_write(chip, port,
1297 MV88E6095_PORT_IEEE_PRIO_REMAP_4567,
1298 0x7654);
1299 }
1300
mv88e6xxx_port_ieeepmt_write(struct mv88e6xxx_chip * chip,int port,u16 table,u8 ptr,u16 data)1301 static int mv88e6xxx_port_ieeepmt_write(struct mv88e6xxx_chip *chip,
1302 int port, u16 table, u8 ptr, u16 data)
1303 {
1304 u16 reg;
1305
1306 reg = MV88E6390_PORT_IEEE_PRIO_MAP_TABLE_UPDATE | table |
1307 (ptr << __bf_shf(MV88E6390_PORT_IEEE_PRIO_MAP_TABLE_PTR_MASK)) |
1308 (data & MV88E6390_PORT_IEEE_PRIO_MAP_TABLE_DATA_MASK);
1309
1310 return mv88e6xxx_port_write(chip, port,
1311 MV88E6390_PORT_IEEE_PRIO_MAP_TABLE, reg);
1312 }
1313
mv88e6390_port_tag_remap(struct mv88e6xxx_chip * chip,int port)1314 int mv88e6390_port_tag_remap(struct mv88e6xxx_chip *chip, int port)
1315 {
1316 int err, i;
1317 u16 table;
1318
1319 for (i = 0; i <= 7; i++) {
1320 table = MV88E6390_PORT_IEEE_PRIO_MAP_TABLE_INGRESS_PCP;
1321 err = mv88e6xxx_port_ieeepmt_write(chip, port, table, i,
1322 (i | i << 4));
1323 if (err)
1324 return err;
1325
1326 table = MV88E6390_PORT_IEEE_PRIO_MAP_TABLE_EGRESS_GREEN_PCP;
1327 err = mv88e6xxx_port_ieeepmt_write(chip, port, table, i, i);
1328 if (err)
1329 return err;
1330
1331 table = MV88E6390_PORT_IEEE_PRIO_MAP_TABLE_EGRESS_YELLOW_PCP;
1332 err = mv88e6xxx_port_ieeepmt_write(chip, port, table, i, i);
1333 if (err)
1334 return err;
1335
1336 table = MV88E6390_PORT_IEEE_PRIO_MAP_TABLE_EGRESS_AVB_PCP;
1337 err = mv88e6xxx_port_ieeepmt_write(chip, port, table, i, i);
1338 if (err)
1339 return err;
1340 }
1341
1342 return 0;
1343 }
1344
1345 /* Offset 0x0E: Policy Control Register */
1346
mv88e6352_port_set_policy(struct mv88e6xxx_chip * chip,int port,enum mv88e6xxx_policy_mapping mapping,enum mv88e6xxx_policy_action action)1347 int mv88e6352_port_set_policy(struct mv88e6xxx_chip *chip, int port,
1348 enum mv88e6xxx_policy_mapping mapping,
1349 enum mv88e6xxx_policy_action action)
1350 {
1351 u16 reg, mask, val;
1352 int shift;
1353 int err;
1354
1355 switch (mapping) {
1356 case MV88E6XXX_POLICY_MAPPING_DA:
1357 shift = __bf_shf(MV88E6XXX_PORT_POLICY_CTL_DA_MASK);
1358 mask = MV88E6XXX_PORT_POLICY_CTL_DA_MASK;
1359 break;
1360 case MV88E6XXX_POLICY_MAPPING_SA:
1361 shift = __bf_shf(MV88E6XXX_PORT_POLICY_CTL_SA_MASK);
1362 mask = MV88E6XXX_PORT_POLICY_CTL_SA_MASK;
1363 break;
1364 case MV88E6XXX_POLICY_MAPPING_VTU:
1365 shift = __bf_shf(MV88E6XXX_PORT_POLICY_CTL_VTU_MASK);
1366 mask = MV88E6XXX_PORT_POLICY_CTL_VTU_MASK;
1367 break;
1368 case MV88E6XXX_POLICY_MAPPING_ETYPE:
1369 shift = __bf_shf(MV88E6XXX_PORT_POLICY_CTL_ETYPE_MASK);
1370 mask = MV88E6XXX_PORT_POLICY_CTL_ETYPE_MASK;
1371 break;
1372 case MV88E6XXX_POLICY_MAPPING_PPPOE:
1373 shift = __bf_shf(MV88E6XXX_PORT_POLICY_CTL_PPPOE_MASK);
1374 mask = MV88E6XXX_PORT_POLICY_CTL_PPPOE_MASK;
1375 break;
1376 case MV88E6XXX_POLICY_MAPPING_VBAS:
1377 shift = __bf_shf(MV88E6XXX_PORT_POLICY_CTL_VBAS_MASK);
1378 mask = MV88E6XXX_PORT_POLICY_CTL_VBAS_MASK;
1379 break;
1380 case MV88E6XXX_POLICY_MAPPING_OPT82:
1381 shift = __bf_shf(MV88E6XXX_PORT_POLICY_CTL_OPT82_MASK);
1382 mask = MV88E6XXX_PORT_POLICY_CTL_OPT82_MASK;
1383 break;
1384 case MV88E6XXX_POLICY_MAPPING_UDP:
1385 shift = __bf_shf(MV88E6XXX_PORT_POLICY_CTL_UDP_MASK);
1386 mask = MV88E6XXX_PORT_POLICY_CTL_UDP_MASK;
1387 break;
1388 default:
1389 return -EOPNOTSUPP;
1390 }
1391
1392 switch (action) {
1393 case MV88E6XXX_POLICY_ACTION_NORMAL:
1394 val = MV88E6XXX_PORT_POLICY_CTL_NORMAL;
1395 break;
1396 case MV88E6XXX_POLICY_ACTION_MIRROR:
1397 val = MV88E6XXX_PORT_POLICY_CTL_MIRROR;
1398 break;
1399 case MV88E6XXX_POLICY_ACTION_TRAP:
1400 val = MV88E6XXX_PORT_POLICY_CTL_TRAP;
1401 break;
1402 case MV88E6XXX_POLICY_ACTION_DISCARD:
1403 val = MV88E6XXX_PORT_POLICY_CTL_DISCARD;
1404 break;
1405 default:
1406 return -EOPNOTSUPP;
1407 }
1408
1409 err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_POLICY_CTL, ®);
1410 if (err)
1411 return err;
1412
1413 reg &= ~mask;
1414 reg |= (val << shift) & mask;
1415
1416 return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_POLICY_CTL, reg);
1417 }
1418
