summaryrefslogtreecommitdiff
path: root/drivers/net/dsa/mv88e6xxx/port.c
blob: ab41619a809b3e98c3da9a53ec455c42a79a7293 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Marvell 88E6xxx Switch Port Registers support
 *
 * Copyright (c) 2008 Marvell Semiconductor
 *
 * Copyright (c) 2016-2017 Savoir-faire Linux Inc.
 *	Vivien Didelot <vivien.didelot@savoirfairelinux.com>
 */

#include <linux/bitfield.h>
#include <linux/if_bridge.h>
#include <linux/phy.h>
#include <linux/phylink.h>

#include "chip.h"
#include "global2.h"
#include "port.h"
#include "serdes.h"

int mv88e6xxx_port_read(struct mv88e6xxx_chip *chip, int port, int reg,
			u16 *val)
{
	int addr = chip->info->port_base_addr + port;

	return mv88e6xxx_read(chip, addr, reg, val);
}

int mv88e6xxx_port_wait_bit(struct mv88e6xxx_chip *chip, int port, int reg,
			    int bit, int val)
{
	int addr = chip->info->port_base_addr + port;

	return mv88e6xxx_wait_bit(chip, addr, reg, bit, val);
}

int mv88e6xxx_port_write(struct mv88e6xxx_chip *chip, int port, int reg,
			 u16 val)
{
	int addr = chip->info->port_base_addr + port;

	return mv88e6xxx_write(chip, addr, reg, val);
}

/* Offset 0x00: MAC (or PCS or Physical) Status Register
 *
 * For most devices, this is read only. However the 6185 has the MyPause
 * bit read/write.
 */
int mv88e6185_port_set_pause(struct mv88e6xxx_chip *chip, int port,
			     int pause)
{
	u16 reg;
	int err;

	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_STS, &reg);
	if (err)
		return err;

	if (pause)
		reg |= MV88E6XXX_PORT_STS_MY_PAUSE;
	else
		reg &= ~MV88E6XXX_PORT_STS_MY_PAUSE;

	return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_STS, reg);
}

/* Offset 0x01: MAC (or PCS or Physical) Control Register
 *
 * Link, Duplex and Flow Control have one force bit, one value bit.
 *
 * For port's MAC speed, ForceSpd (or SpdValue) bits 1:0 program the value.
 * Alternative values require the 200BASE (or AltSpeed) bit 12 set.
 * Newer chips need a ForcedSpd bit 13 set to consider the value.
 */

static int mv88e6xxx_port_set_rgmii_delay(struct mv88e6xxx_chip *chip, int port,
					  phy_interface_t mode)
{
	u16 reg;
	int err;

	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_MAC_CTL, &reg);
	if (err)
		return err;

	reg &= ~(MV88E6XXX_PORT_MAC_CTL_RGMII_DELAY_RXCLK |
		 MV88E6XXX_PORT_MAC_CTL_RGMII_DELAY_TXCLK);

	switch (mode) {
	case PHY_INTERFACE_MODE_RGMII_RXID:
		reg |= MV88E6XXX_PORT_MAC_CTL_RGMII_DELAY_RXCLK;
		break;
	case PHY_INTERFACE_MODE_RGMII_TXID:
		reg |= MV88E6XXX_PORT_MAC_CTL_RGMII_DELAY_TXCLK;
		break;
	case PHY_INTERFACE_MODE_RGMII_ID:
		reg |= MV88E6XXX_PORT_MAC_CTL_RGMII_DELAY_RXCLK |
			MV88E6XXX_PORT_MAC_CTL_RGMII_DELAY_TXCLK;
		break;
	case PHY_INTERFACE_MODE_RGMII:
		break;
	default:
		return 0;
	}

	err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_MAC_CTL, reg);
	if (err)
		return err;

	dev_dbg(chip->dev, "p%d: delay RXCLK %s, TXCLK %s\n", port,
		reg & MV88E6XXX_PORT_MAC_CTL_RGMII_DELAY_RXCLK ? "yes" : "no",
		reg & MV88E6XXX_PORT_MAC_CTL_RGMII_DELAY_TXCLK ? "yes" : "no");

	return 0;
}

int mv88e6352_port_set_rgmii_delay(struct mv88e6xxx_chip *chip, int port,
				   phy_interface_t mode)
{
	if (port < 5)
		return -EOPNOTSUPP;

	return mv88e6xxx_port_set_rgmii_delay(chip, port, mode);
}

int mv88e6390_port_set_rgmii_delay(struct mv88e6xxx_chip *chip, int port,
				   phy_interface_t mode)
{
	if (port != 0)
		return -EOPNOTSUPP;

	return mv88e6xxx_port_set_rgmii_delay(chip, port, mode);
}

int mv88e6xxx_port_set_link(struct mv88e6xxx_chip *chip, int port, int link)
{
	u16 reg;
	int err;

	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_MAC_CTL, &reg);
	if (err)
		return err;

	reg &= ~(MV88E6XXX_PORT_MAC_CTL_FORCE_LINK |
		 MV88E6XXX_PORT_MAC_CTL_LINK_UP);

	switch (link) {
	case LINK_FORCED_DOWN:
		reg |= MV88E6XXX_PORT_MAC_CTL_FORCE_LINK;
		break;
	case LINK_FORCED_UP:
		reg |= MV88E6XXX_PORT_MAC_CTL_FORCE_LINK |
			MV88E6XXX_PORT_MAC_CTL_LINK_UP;
		break;
	case LINK_UNFORCED:
		/* normal link detection */
		break;
	default:
		return -EINVAL;
	}

	err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_MAC_CTL, reg);
	if (err)
		return err;

	dev_dbg(chip->dev, "p%d: %s link %s\n", port,
		reg & MV88E6XXX_PORT_MAC_CTL_FORCE_LINK ? "Force" : "Unforce",
		reg & MV88E6XXX_PORT_MAC_CTL_LINK_UP ? "up" : "down");

	return 0;
}

int mv88e6xxx_port_sync_link(struct mv88e6xxx_chip *chip, int port, unsigned int mode, bool isup)
{
	const struct mv88e6xxx_ops *ops = chip->info->ops;
	int err = 0;
	int link;

	if (isup)
		link = LINK_FORCED_UP;
	else
		link = LINK_FORCED_DOWN;

	if (ops->port_set_link)
		err = ops->port_set_link(chip, port, link);

	return err;
}

int mv88e6185_port_sync_link(struct mv88e6xxx_chip *chip, int port, unsigned int mode, bool isup)
{
	const struct mv88e6xxx_ops *ops = chip->info->ops;
	int err = 0;
	int link;

	if (mode == MLO_AN_INBAND)
		link = LINK_UNFORCED;
	else if (isup)
		link = LINK_FORCED_UP;
	else
		link = LINK_FORCED_DOWN;

	if (ops->port_set_link)
		err = ops->port_set_link(chip, port, link);

	return err;
}

static int mv88e6xxx_port_set_speed_duplex(struct mv88e6xxx_chip *chip,
					   int port, int speed, bool alt_bit,
					   bool force_bit, int duplex)
{
	u16 reg, ctrl;
	int err;

	switch (speed) {
	case 10:
		ctrl = MV88E6XXX_PORT_MAC_CTL_SPEED_10;
		break;
	case 100:
		ctrl = MV88E6XXX_PORT_MAC_CTL_SPEED_100;
		break;
	case 200:
		if (alt_bit)
			ctrl = MV88E6XXX_PORT_MAC_CTL_SPEED_100 |
				MV88E6390_PORT_MAC_CTL_ALTSPEED;
		else
			ctrl = MV88E6065_PORT_MAC_CTL_SPEED_200;
		break;
	case 1000:
		ctrl = MV88E6XXX_PORT_MAC_CTL_SPEED_1000;
		break;
	case 2500:
		if (alt_bit)
			ctrl = MV88E6390_PORT_MAC_CTL_SPEED_10000 |
				MV88E6390_PORT_MAC_CTL_ALTSPEED;
		else
			ctrl = MV88E6390_PORT_MAC_CTL_SPEED_10000;
		break;
	case 10000:
		/* all bits set, fall through... */
	case SPEED_UNFORCED:
		ctrl = MV88E6XXX_PORT_MAC_CTL_SPEED_UNFORCED;
		break;
	default:
		return -EOPNOTSUPP;
	}

	switch (duplex) {
	case DUPLEX_HALF:
		ctrl |= MV88E6XXX_PORT_MAC_CTL_FORCE_DUPLEX;
		break;
	case DUPLEX_FULL:
		ctrl |= MV88E6XXX_PORT_MAC_CTL_FORCE_DUPLEX |
			MV88E6XXX_PORT_MAC_CTL_DUPLEX_FULL;
		break;
	case DUPLEX_UNFORCED:
		/* normal duplex detection */
		break;
	default:
		return -EOPNOTSUPP;
	}

	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_MAC_CTL, &reg);
	if (err)
		return err;

	reg &= ~(MV88E6XXX_PORT_MAC_CTL_SPEED_MASK |
		 MV88E6XXX_PORT_MAC_CTL_FORCE_DUPLEX |
		 MV88E6XXX_PORT_MAC_CTL_DUPLEX_FULL);

	if (alt_bit)
		reg &= ~MV88E6390_PORT_MAC_CTL_ALTSPEED;
	if (force_bit) {
		reg &= ~MV88E6390_PORT_MAC_CTL_FORCE_SPEED;
		if (speed != SPEED_UNFORCED)
			ctrl |= MV88E6390_PORT_MAC_CTL_FORCE_SPEED;
	}
	reg |= ctrl;

	err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_MAC_CTL, reg);
	if (err)
		return err;

	if (speed != SPEED_UNFORCED)
		dev_dbg(chip->dev, "p%d: Speed set to %d Mbps\n", port, speed);
	else
		dev_dbg(chip->dev, "p%d: Speed unforced\n", port);
	dev_dbg(chip->dev, "p%d: %s %s duplex\n", port,
		reg & MV88E6XXX_PORT_MAC_CTL_FORCE_DUPLEX ? "Force" : "Unforce",
		reg & MV88E6XXX_PORT_MAC_CTL_DUPLEX_FULL ? "full" : "half");

	return 0;
}

/* Support 10, 100, 200 Mbps (e.g. 88E6065 family) */
int mv88e6065_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port,
				    int speed, int duplex)
{
	if (speed == SPEED_MAX)
		speed = 200;

	if (speed > 200)
		return -EOPNOTSUPP;

	/* Setting 200 Mbps on port 0 to 3 selects 100 Mbps */
	return mv88e6xxx_port_set_speed_duplex(chip, port, speed, false, false,
					       duplex);
}

/* Support 10, 100, 1000 Mbps (e.g. 88E6185 family) */
int mv88e6185_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port,
				    int speed, int duplex)
{
	if (speed == SPEED_MAX)
		speed = 1000;

	if (speed == 200 || speed > 1000)
		return -EOPNOTSUPP;

	return mv88e6xxx_port_set_speed_duplex(chip, port, speed, false, false,
					       duplex);
}

/* Support 10, 100 Mbps (e.g. 88E6250 family) */
int mv88e6250_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port,
				    int speed, int duplex)
{
	if (speed == SPEED_MAX)
		speed = 100;

	if (speed > 100)
		return -EOPNOTSUPP;

	return mv88e6xxx_port_set_speed_duplex(chip, port, speed, false, false,
					       duplex);
}

/* Support 10, 100, 200, 1000, 2500 Mbps (e.g. 88E6341) */
int mv88e6341_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port,
				    int speed, int duplex)
{
	if (speed == SPEED_MAX)
		speed = port < 5 ? 1000 : 2500;

	if (speed > 2500)
		return -EOPNOTSUPP;

	if (speed == 200 && port != 0)
		return -EOPNOTSUPP;

	if (speed == 2500 && port < 5)
		return -EOPNOTSUPP;

	return mv88e6xxx_port_set_speed_duplex(chip, port, speed, !port, true,
					       duplex);
}

phy_interface_t mv88e6341_port_max_speed_mode(int port)
{
	if (port == 5)
		return PHY_INTERFACE_MODE_2500BASEX;

	return PHY_INTERFACE_MODE_NA;
}

/* Support 10, 100, 200, 1000 Mbps (e.g. 88E6352 family) */
int mv88e6352_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port,
				    int speed, int duplex)
{
	if (speed == SPEED_MAX)
		speed = 1000;

	if (speed > 1000)
		return -EOPNOTSUPP;

	if (speed == 200 && port < 5)
		return -EOPNOTSUPP;

	return mv88e6xxx_port_set_speed_duplex(chip, port, speed, true, false,
					       duplex);
}

/* Support 10, 100, 200, 1000, 2500 Mbps (e.g. 88E6390) */
int mv88e6390_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port,
				    int speed, int duplex)
{
	if (speed == SPEED_MAX)
		speed = port < 9 ? 1000 : 2500;

	if (speed > 2500)
		return -EOPNOTSUPP;

	if (speed == 200 && port != 0)
		return -EOPNOTSUPP;

	if (speed == 2500 && port < 9)
		return -EOPNOTSUPP;

	return mv88e6xxx_port_set_speed_duplex(chip, port, speed, true, true,
					       duplex);
}

phy_interface_t mv88e6390_port_max_speed_mode(int port)
{
	if (port == 9 || port == 10)
		return PHY_INTERFACE_MODE_2500BASEX;

	return PHY_INTERFACE_MODE_NA;
}

/* Support 10, 100, 200, 1000, 2500, 10000 Mbps (e.g. 88E6190X) */
int mv88e6390x_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port,
				     int speed, int duplex)
{
	if (speed == SPEED_MAX)
		speed = port < 9 ? 1000 : 10000;

	if (speed == 200 && port != 0)
		return -EOPNOTSUPP;

	if (speed >= 2500 && port < 9)
		return -EOPNOTSUPP;

	return mv88e6xxx_port_set_speed_duplex(chip, port, speed, true, true,
					       duplex);
}

phy_interface_t mv88e6390x_port_max_speed_mode(int port)
{
	if (port == 9 || port == 10)
		return PHY_INTERFACE_MODE_XAUI;

	return PHY_INTERFACE_MODE_NA;
}

/* Support 10, 100, 200, 1000, 2500, 5000, 10000 Mbps (e.g. 88E6393X)
 * Function mv88e6xxx_port_set_speed_duplex() can't be used as the register
 * values for speeds 2500 & 5000 conflict.
 */
int mv88e6393x_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port,
				     int speed, int duplex)
{
	u16 reg, ctrl;
	int err;

	if (speed == SPEED_MAX)
		speed = (port > 0 && port < 9) ? 1000 : 10000;

	if (speed == 200 && port != 0)
		return -EOPNOTSUPP;

	if (speed >= 2500 && port > 0 && port < 9)
		return -EOPNOTSUPP;

	switch (speed) {
	case 10:
		ctrl = MV88E6XXX_PORT_MAC_CTL_SPEED_10;
		break;
	case 100:
		ctrl = MV88E6XXX_PORT_MAC_CTL_SPEED_100;
		break;
	case 200:
		ctrl = MV88E6XXX_PORT_MAC_CTL_SPEED_100 |
			MV88E6390_PORT_MAC_CTL_ALTSPEED;
		break;
	case 1000:
		ctrl = MV88E6XXX_PORT_MAC_CTL_SPEED_1000;
		break;
	case 2500:
		ctrl = MV88E6XXX_PORT_MAC_CTL_SPEED_1000 |
			MV88E6390_PORT_MAC_CTL_ALTSPEED;
		break;
	case 5000:
		ctrl = MV88E6390_PORT_MAC_CTL_SPEED_10000 |
			MV88E6390_PORT_MAC_CTL_ALTSPEED;
		break;
	case 10000:
	case SPEED_UNFORCED:
		ctrl = MV88E6XXX_PORT_MAC_CTL_SPEED_UNFORCED;
		break;
	default:
		return -EOPNOTSUPP;
	}

	switch (duplex) {
	case DUPLEX_HALF:
		ctrl |= MV88E6XXX_PORT_MAC_CTL_FORCE_DUPLEX;
		break;
	case DUPLEX_FULL:
		ctrl |= MV88E6XXX_PORT_MAC_CTL_FORCE_DUPLEX |
			MV88E6XXX_PORT_MAC_CTL_DUPLEX_FULL;
		break;
	case DUPLEX_UNFORCED:
		/* normal duplex detection */
		break;
	default:
		return -EOPNOTSUPP;
	}

	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_MAC_CTL, &reg);
	if (err)
		return err;

	reg &= ~(MV88E6XXX_PORT_MAC_CTL_SPEED_MASK |
		 MV88E6390_PORT_MAC_CTL_ALTSPEED |
		 MV88E6390_PORT_MAC_CTL_FORCE_SPEED);

	if (speed != SPEED_UNFORCED)
		reg |= MV88E6390_PORT_MAC_CTL_FORCE_SPEED;

	reg |= ctrl;

	err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_MAC_CTL, reg);
	if (err)
		return err;

	if (speed != SPEED_UNFORCED)
		dev_dbg(chip->dev, "p%d: Speed set to %d Mbps\n", port, speed);
	else
		dev_dbg(chip->dev, "p%d: Speed unforced\n", port);
	dev_dbg(chip->dev, "p%d: %s %s duplex\n", port,
		reg & MV88E6XXX_PORT_MAC_CTL_FORCE_DUPLEX ? "Force" : "Unforce",
		reg & MV88E6XXX_PORT_MAC_CTL_DUPLEX_FULL ? "full" : "half");

	return 0;
}

phy_interface_t mv88e6393x_port_max_speed_mode(int port)
{
	if (port == 0 || port == 9 || port == 10)
		return PHY_INTERFACE_MODE_10GBASER;

	return PHY_INTERFACE_MODE_NA;
}

static int mv88e6xxx_port_set_cmode(struct mv88e6xxx_chip *chip, int port,
				    phy_interface_t mode, bool force)
{
	u16 cmode;
	int lane;
	u16 reg;
	int err;

	/* Default to a slow mode, so freeing up SERDES interfaces for
	 * other ports which might use them for SFPs.
	 */
	if (mode == PHY_INTERFACE_MODE_NA)
		mode = PHY_INTERFACE_MODE_1000BASEX;

	switch (mode) {
	case PHY_INTERFACE_MODE_1000BASEX:
		cmode = MV88E6XXX_PORT_STS_CMODE_1000BASEX;
		break;
	case PHY_INTERFACE_MODE_SGMII:
		cmode = MV88E6XXX_PORT_STS_CMODE_SGMII;
		break;
	case PHY_INTERFACE_MODE_2500BASEX:
		cmode = MV88E6XXX_PORT_STS_CMODE_2500BASEX;
		break;
	case PHY_INTERFACE_MODE_5GBASER:
		cmode = MV88E6393X_PORT_STS_CMODE_5GBASER;
		break;
	case PHY_INTERFACE_MODE_XGMII:
	case PHY_INTERFACE_MODE_XAUI:
		cmode = MV88E6XXX_PORT_STS_CMODE_XAUI;
		break;
	case PHY_INTERFACE_MODE_RXAUI:
		cmode = MV88E6XXX_PORT_STS_CMODE_RXAUI;
		break;
	case PHY_INTERFACE_MODE_10GBASER:
		cmode = MV88E6393X_PORT_STS_CMODE_10GBASER;
		break;
	default:
		cmode = 0;
	}

	/* cmode doesn't change, nothing to do for us unless forced */
	if (cmode == chip->ports[port].cmode && !force)
		return 0;

	lane = mv88e6xxx_serdes_get_lane(chip, port);
	if (lane >= 0) {
		if (chip->ports[port].serdes_irq) {
			err = mv88e6xxx_serdes_irq_disable(chip, port, lane);
			if (err)
				return err;
		}

		err = mv88e6xxx_serdes_power_down(chip, port, lane);
		if (err)
			return err;
	}

	chip->ports[port].cmode = 0;

	if (cmode) {
		err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_STS, &reg);
		if (err)
			return err;

		reg &= ~MV88E6XXX_PORT_STS_CMODE_MASK;
		reg |= cmode;

		err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_STS, reg);
		if (err)
			return err;

		chip->ports[port].cmode = cmode;

		lane = mv88e6xxx_serdes_get_lane(chip, port);
		if (lane < 0)
			return lane;

		err = mv88e6xxx_serdes_power_up(chip, port, lane);
		if (err)
			return err;

		if (chip->ports[port].serdes_irq) {
			err = mv88e6xxx_serdes_irq_enable(chip, port, lane);
			if (err)
				return err;
		}
	}

	return 0;
}

int mv88e6390x_port_set_cmode(struct mv88e6xxx_chip *chip, int port,
			      phy_interface_t mode)
{
	if (port != 9 && port != 10)
		return -EOPNOTSUPP;

	return mv88e6xxx_port_set_cmode(chip, port, mode, false);
}

int mv88e6390_port_set_cmode(struct mv88e6xxx_chip *chip, int port,
			     phy_interface_t mode)
{
	if (port != 9 && port != 10)
		return -EOPNOTSUPP;

	switch (mode) {
	case PHY_INTERFACE_MODE_NA:
		return 0;
	case PHY_INTERFACE_MODE_XGMII:
	case PHY_INTERFACE_MODE_XAUI:
	case PHY_INTERFACE_MODE_RXAUI:
		return -EINVAL;
	default:
		break;
	}

	return mv88e6xxx_port_set_cmode(chip, port, mode, false);
}

int mv88e6393x_port_set_cmode(struct mv88e6xxx_chip *chip, int port,
			      phy_interface_t mode)
{
	int err;
	u16 reg;

	if (port != 0 && port != 9 && port != 10)
		return -EOPNOTSUPP;

	/* mv88e6393x errata 4.5: EEE should be disabled on SERDES ports */
	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_MAC_CTL, &reg);
	if (err)
		return err;

	reg &= ~MV88E6XXX_PORT_MAC_CTL_EEE;
	reg |= MV88E6XXX_PORT_MAC_CTL_FORCE_EEE;
	err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_MAC_CTL, reg);
	if (err)
		return err;

	return mv88e6xxx_port_set_cmode(chip, port, mode, false);
}

static int mv88e6341_port_set_cmode_writable(struct mv88e6xxx_chip *chip,
					     int port)
{
	int err, addr;
	u16 reg, bits;

	if (port != 5)
		return -EOPNOTSUPP;

	addr = chip->info->port_base_addr + port;

	err = mv88e6xxx_port_hidden_read(chip, 0x7, addr, 0, &reg);
	if (err)
		return err;

	bits = MV88E6341_PORT_RESERVED_1A_FORCE_CMODE |
	       MV88E6341_PORT_RESERVED_1A_SGMII_AN;

	if ((reg & bits) == bits)
		return 0;

	reg |= bits;
	return mv88e6xxx_port_hidden_write(chip, 0x7, addr, 0, reg);
}

int mv88e6341_port_set_cmode(struct mv88e6xxx_chip *chip, int port,
			     phy_interface_t mode)
{
	int err;

	if (port != 5)
		return -EOPNOTSUPP;

	switch (mode) {
	case PHY_INTERFACE_MODE_NA:
		return 0;
	case PHY_INTERFACE_MODE_XGMII:
	case PHY_INTERFACE_MODE_XAUI:
	case PHY_INTERFACE_MODE_RXAUI:
		return -EINVAL;
	default:
		break;
	}

	err = mv88e6341_port_set_cmode_writable(chip, port);
	if (err)
		return err;

	return mv88e6xxx_port_set_cmode(chip, port, mode, true);
}

int mv88e6185_port_get_cmode(struct mv88e6xxx_chip *chip, int port, u8 *cmode)
{
	int err;
	u16 reg;

	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_STS, &reg);
	if (err)
		return err;

	*cmode = reg & MV88E6185_PORT_STS_CMODE_MASK;

	return 0;
}

int mv88e6352_port_get_cmode(struct mv88e6xxx_chip *chip, int port, u8 *cmode)
{
	int err;
	u16 reg;

	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_STS, &reg);
	if (err)
		return err;

	*cmode = reg & MV88E6XXX_PORT_STS_CMODE_MASK;

	return 0;
}

/* Offset 0x02: Jamming Control
 *
 * Do not limit the period of time that this port can be paused for by
 * the remote end or the period of time that this port can pause the
 * remote end.
 */
int mv88e6097_port_pause_limit(struct mv88e6xxx_chip *chip, int port, u8 in,
			       u8 out)
{
	return mv88e6xxx_port_write(chip, port, MV88E6097_PORT_JAM_CTL,
				    out << 8 | in);
}

int mv88e6390_port_pause_limit(struct mv88e6xxx_chip *chip, int port, u8 in,
			       u8 out)
{
	int err;

	err = mv88e6xxx_port_write(chip, port, MV88E6390_PORT_FLOW_CTL,
				   MV88E6390_PORT_FLOW_CTL_UPDATE |
				   MV88E6390_PORT_FLOW_CTL_LIMIT_IN | in);
	if (err)
		return err;

	return mv88e6xxx_port_write(chip, port, MV88E6390_PORT_FLOW_CTL,
				    MV88E6390_PORT_FLOW_CTL_UPDATE |
				    MV88E6390_PORT_FLOW_CTL_LIMIT_OUT | out);
}

/* Offset 0x04: Port Control Register */

static const char * const mv88e6xxx_port_state_names[] = {
	[MV88E6XXX_PORT_CTL0_STATE_DISABLED] = "Disabled",
	[MV88E6XXX_PORT_CTL0_STATE_BLOCKING] = "Blocking/Listening",
	[MV88E6XXX_PORT_CTL0_STATE_LEARNING] = "Learning",
	[MV88E6XXX_PORT_CTL0_STATE_FORWARDING] = "Forwarding",
};

int mv88e6xxx_port_set_state(struct mv88e6xxx_chip *chip, int port, u8 state)
{
	u16 reg;
	int err;

	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL0, &reg);
	if (err)
		return err;

	reg &= ~MV88E6XXX_PORT_CTL0_STATE_MASK;

	switch (state) {
	case BR_STATE_DISABLED:
		state = MV88E6XXX_PORT_CTL0_STATE_DISABLED;
		break;
	case BR_STATE_BLOCKING:
	case BR_STATE_LISTENING:
		state = MV88E6XXX_PORT_CTL0_STATE_BLOCKING;
		break;
	case BR_STATE_LEARNING:
		state = MV88E6XXX_PORT_CTL0_STATE_LEARNING;
		break;
	case BR_STATE_FORWARDING:
		state = MV88E6XXX_PORT_CTL0_STATE_FORWARDING;
		break;
	default:
		return -EINVAL;
	}

	reg |= state;

	err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL0, reg);
	if (err)
		return err;

	dev_dbg(chip->dev, "p%d: PortState set to %s\n", port,
		mv88e6xxx_port_state_names[state]);

	return 0;
}

int mv88e6xxx_port_set_egress_mode(struct mv88e6xxx_chip *chip, int port,
				   enum mv88e6xxx_egress_mode mode)
{
	int err;
	u16 reg;

	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL0, &reg);
	if (err)
		return err;

	reg &= ~MV88E6XXX_PORT_CTL0_EGRESS_MODE_MASK;

	switch (mode) {
	case MV88E6XXX_EGRESS_MODE_UNMODIFIED:
		reg |= MV88E6XXX_PORT_CTL0_EGRESS_MODE_UNMODIFIED;
		break;
	case MV88E6XXX_EGRESS_MODE_UNTAGGED:
		reg |= MV88E6XXX_PORT_CTL0_EGRESS_MODE_UNTAGGED;
		break;
	case MV88E6XXX_EGRESS_MODE_TAGGED:
		reg |= MV88E6XXX_PORT_CTL0_EGRESS_MODE_TAGGED;
		break;
	case MV88E6XXX_EGRESS_MODE_ETHERTYPE:
		reg |= MV88E6XXX_PORT_CTL0_EGRESS_MODE_ETHER_TYPE_DSA;
		break;
	default:
		return -EINVAL;
	}

	return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL0, reg);
}

int mv88e6085_port_set_frame_mode(struct mv88e6xxx_chip *chip, int port,
				  enum mv88e6xxx_frame_mode mode)
{
	int err;
	u16 reg;

	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL0, &reg);
	if (err)
		return err;

	reg &= ~MV88E6XXX_PORT_CTL0_FRAME_MODE_MASK;

	switch (mode) {
	case MV88E6XXX_FRAME_MODE_NORMAL:
		reg |= MV88E6XXX_PORT_CTL0_FRAME_MODE_NORMAL;
		break;
	case MV88E6XXX_FRAME_MODE_DSA:
		reg |= MV88E6XXX_PORT_CTL0_FRAME_MODE_DSA;
		break;
	default:
		return -EINVAL;
	}

	return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL0, reg);
}

int mv88e6351_port_set_frame_mode(struct mv88e6xxx_chip *chip, int port,
				  enum mv88e6xxx_frame_mode mode)
{
	int err;
	u16 reg;

	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL0, &reg);
	if (err)
		return err;

	reg &= ~MV88E6XXX_PORT_CTL0_FRAME_MODE_MASK;

	switch (mode) {
	case MV88E6XXX_FRAME_MODE_NORMAL:
		reg |= MV88E6XXX_PORT_CTL0_FRAME_MODE_NORMAL;
		break;
	case MV88E6XXX_FRAME_MODE_DSA:
		reg |= MV88E6XXX_PORT_CTL0_FRAME_MODE_DSA;
		break;
	case MV88E6XXX_FRAME_MODE_PROVIDER:
		reg |= MV88E6XXX_PORT_CTL0_FRAME_MODE_PROVIDER;
		break;
	case MV88E6XXX_FRAME_MODE_ETHERTYPE:
		reg |= MV88E6XXX_PORT_CTL0_FRAME_MODE_ETHER_TYPE_DSA;
		break;
	default:
		return -EINVAL;
	}

	return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL0, reg);
}

int mv88e6185_port_set_forward_unknown(struct mv88e6xxx_chip *chip,
				       int port, bool unicast)
{
	int err;
	u16 reg;

	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL0, &reg);
	if (err)
		return err;

	if (unicast)
		reg |= MV88E6185_PORT_CTL0_FORWARD_UNKNOWN;
	else
		reg &= ~MV88E6185_PORT_CTL0_FORWARD_UNKNOWN;

	return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL0, reg);
}

int mv88e6352_port_set_ucast_flood(struct mv88e6xxx_chip *chip, int port,
				   bool unicast)
{
	int err;
	u16 reg;

	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL0, &reg);
	if (err)
		return err;

	if (unicast)
		reg |= MV88E6352_PORT_CTL0_EGRESS_FLOODS_UC;
	else
		reg &= ~MV88E6352_PORT_CTL0_EGRESS_FLOODS_UC;

	return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL0, reg);
}

int mv88e6352_port_set_mcast_flood(struct mv88e6xxx_chip *chip, int port,
				   bool multicast)
{
	int err;
	u16 reg;

	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL0, &reg);
	if (err)
		return err;

	if (multicast)
		reg |= MV88E6352_PORT_CTL0_EGRESS_FLOODS_MC;
	else
		reg &= ~MV88E6352_PORT_CTL0_EGRESS_FLOODS_MC;

	return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL0, reg);
}

/* Offset 0x05: Port Control 1 */

int mv88e6xxx_port_set_message_port(struct mv88e6xxx_chip *chip, int port,
				    bool message_port)
{
	u16 val;
	int err;

	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL1, &val);
	if (err)
		return err;

	if (message_port)
		val |= MV88E6XXX_PORT_CTL1_MESSAGE_PORT;
	else
		val &= ~MV88E6XXX_PORT_CTL1_MESSAGE_PORT;

	return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL1, val);
}

int mv88e6xxx_port_set_trunk(struct mv88e6xxx_chip *chip, int port,
			     bool trunk, u8 id)
{
	u16 val;
	int err;

	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL1, &val);
	if (err)
		return err;

	val &= ~MV88E6XXX_PORT_CTL1_TRUNK_ID_MASK;

	if (trunk)
		val |= MV88E6XXX_PORT_CTL1_TRUNK_PORT |
			(id << MV88E6XXX_PORT_CTL1_TRUNK_ID_SHIFT);
	else
		val &= ~MV88E6XXX_PORT_CTL1_TRUNK_PORT;

	return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL1, val);
}

/* Offset 0x06: Port Based VLAN Map */

int mv88e6xxx_port_set_vlan_map(struct mv88e6xxx_chip *chip, int port, u16 map)
{
	const u16 mask = mv88e6xxx_port_mask(chip);
	u16 reg;
	int err;

	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_BASE_VLAN, &reg);
	if (err)
		return err;

	reg &= ~mask;
	reg |= map & mask;

	err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_BASE_VLAN, reg);
	if (err)
		return err;

	dev_dbg(chip->dev, "p%d: VLANTable set to %.3x\n", port, map);

	return 0;
}

int mv88e6xxx_port_get_fid(struct mv88e6xxx_chip *chip, int port, u16 *fid)
{
	const u16 upper_mask = (mv88e6xxx_num_databases(chip) - 1) >> 4;
	u16 reg;
	int err;

	/* Port's default FID lower 4 bits are located in reg 0x06, offset 12 */
	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_BASE_VLAN, &reg);
	if (err)
		return err;

	*fid = (reg & 0xf000) >> 12;

	/* Port's default FID upper bits are located in reg 0x05, offset 0 */
	if (upper_mask) {
		err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL1,
					  &reg);
		if (err)
			return err;

		*fid |= (reg & upper_mask) << 4;
	}

	return 0;
}

int mv88e6xxx_port_set_fid(struct mv88e6xxx_chip *chip, int port, u16 fid)
{
	const u16 upper_mask = (mv88e6xxx_num_databases(chip) - 1) >> 4;
	u16 reg;
	int err;

	if (fid >= mv88e6xxx_num_databases(chip))
		return -EINVAL;

	/* Port's default FID lower 4 bits are located in reg 0x06, offset 12 */
	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_BASE_VLAN, &reg);
	if (err)
		return err;

	reg &= 0x0fff;
	reg |= (fid & 0x000f) << 12;

	err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_BASE_VLAN, reg);
	if (err)
		return err;

	/* Port's default FID upper bits are located in reg 0x05, offset 0 */
	if (upper_mask) {
		err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL1,
					  &reg);
		if (err)
			return err;

		reg &= ~upper_mask;
		reg |= (fid >> 4) & upper_mask;

		err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL1,
					   reg);
		if (err)
			return err;
	}

	dev_dbg(chip->dev, "p%d: FID set to %u\n", port, fid);

	return 0;
}

/* Offset 0x07: Default Port VLAN ID & Priority */

int mv88e6xxx_port_get_pvid(struct mv88e6xxx_chip *chip, int port, u16 *pvid)
{
	u16 reg;
	int err;

	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_DEFAULT_VLAN,
				  &reg);
	if (err)
		return err;

	*pvid = reg & MV88E6XXX_PORT_DEFAULT_VLAN_MASK;

	return 0;
}

int mv88e6xxx_port_set_pvid(struct mv88e6xxx_chip *chip, int port, u16 pvid)
{
	u16 reg;
	int err;

	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_DEFAULT_VLAN,
				  &reg);
	if (err)
		return err;

	reg &= ~MV88E6XXX_PORT_DEFAULT_VLAN_MASK;
	reg |= pvid & MV88E6XXX_PORT_DEFAULT_VLAN_MASK;

	err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_DEFAULT_VLAN,
				   reg);
	if (err)
		return err;

	dev_dbg(chip->dev, "p%d: DefaultVID set to %u\n", port, pvid);

	return 0;
}

/* Offset 0x08: Port Control 2 Register */

static const char * const mv88e6xxx_port_8021q_mode_names[] = {
	[MV88E6XXX_PORT_CTL2_8021Q_MODE_DISABLED] = "Disabled",
	[MV88E6XXX_PORT_CTL2_8021Q_MODE_FALLBACK] = "Fallback",
	[MV88E6XXX_PORT_CTL2_8021Q_MODE_CHECK] = "Check",
	[MV88E6XXX_PORT_CTL2_8021Q_MODE_SECURE] = "Secure",
};

int mv88e6185_port_set_default_forward(struct mv88e6xxx_chip *chip,
				       int port, bool multicast)
{
	int err;
	u16 reg;

	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL2, &reg);
	if (err)
		return err;

	if (multicast)
		reg |= MV88E6XXX_PORT_CTL2_DEFAULT_FORWARD;
	else
		reg &= ~MV88E6XXX_PORT_CTL2_DEFAULT_FORWARD;

	return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL2, reg);
}

int mv88e6095_port_set_upstream_port(struct mv88e6xxx_chip *chip, int port,
				     int upstream_port)
{
	int err;
	u16 reg;

	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL2, &reg);
	if (err)
		return err;

	reg &= ~MV88E6095_PORT_CTL2_CPU_PORT_MASK;
	reg |= upstream_port;

	return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL2, reg);
}

int mv88e6xxx_port_set_mirror(struct mv88e6xxx_chip *chip, int port,
			      enum mv88e6xxx_egress_direction direction,
			      bool mirror)
{
	bool *mirror_port;
	u16 reg;
	u16 bit;
	int err;

	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL2, &reg);
	if (err)
		return err;

	switch (direction) {
	case MV88E6XXX_EGRESS_DIR_INGRESS:
		bit = MV88E6XXX_PORT_CTL2_INGRESS_MONITOR;
		mirror_port = &chip->ports[port].mirror_ingress;
		break;
	case MV88E6XXX_EGRESS_DIR_EGRESS:
		bit = MV88E6XXX_PORT_CTL2_EGRESS_MONITOR;
		mirror_port = &chip->ports[port].mirror_egress;
		break;
	default:
		return -EINVAL;
	}

	reg &= ~bit;
	if (mirror)
		reg |= bit;

	err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL2, reg);
	if (!err)
		*mirror_port = mirror;

	return err;
}

int mv88e6xxx_port_set_8021q_mode(struct mv88e6xxx_chip *chip, int port,
				  u16 mode)
{
	u16 reg;
	int err;

	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL2, &reg);
	if (err)
		return err;

	reg &= ~MV88E6XXX_PORT_CTL2_8021Q_MODE_MASK;
	reg |= mode & MV88E6XXX_PORT_CTL2_8021Q_MODE_MASK;

	err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL2, reg);
	if (err)
		return err;

	dev_dbg(chip->dev, "p%d: 802.1QMode set to %s\n", port,
		mv88e6xxx_port_8021q_mode_names[mode]);

	return 0;
}

int mv88e6xxx_port_drop_untagged(struct mv88e6xxx_chip *chip, int port,
				 bool drop_untagged)
{
	u16 old, new;
	int err;

	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL2, &old);
	if (err)
		return err;

	if (drop_untagged)
		new = old | MV88E6XXX_PORT_CTL2_DISCARD_UNTAGGED;
	else
		new = old & ~MV88E6XXX_PORT_CTL2_DISCARD_UNTAGGED;

	if (new == old)
		return 0;

	return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL2, new);
}

int mv88e6xxx_port_set_map_da(struct mv88e6xxx_chip *chip, int port)
{
	u16 reg;
	int err;

	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL2, &reg);
	if (err)
		return err;

	reg |= MV88E6XXX_PORT_CTL2_MAP_DA;

	return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL2, reg);
}

int mv88e6165_port_set_jumbo_size(struct mv88e6xxx_chip *chip, int port,
				  size_t size)
{
	u16 reg;
	int err;

	size += VLAN_ETH_HLEN + ETH_FCS_LEN;

	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL2, &reg);
	if (err)
		return err;

	reg &= ~MV88E6XXX_PORT_CTL2_JUMBO_MODE_MASK;

	if (size <= 1522)
		reg |= MV88E6XXX_PORT_CTL2_JUMBO_MODE_1522;
	else if (size <= 2048)
		reg |= MV88E6XXX_PORT_CTL2_JUMBO_MODE_2048;
	else if (size <= 10240)
		reg |= MV88E6XXX_PORT_CTL2_JUMBO_MODE_10240;
	else
		return -ERANGE;

	return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL2, reg);
}

/* Offset 0x09: Port Rate Control */

int mv88e6095_port_egress_rate_limiting(struct mv88e6xxx_chip *chip, int port)
{
	return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_EGRESS_RATE_CTL1,
				    0x0000);
}

int mv88e6097_port_egress_rate_limiting(struct mv88e6xxx_chip *chip, int port)
{
	return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_EGRESS_RATE_CTL1,
				    0x0001);
}

/* Offset 0x0B: Port Association Vector */

int mv88e6xxx_port_set_assoc_vector(struct mv88e6xxx_chip *chip, int port,
				    u16 pav)
{
	u16 reg, mask;
	int err;

	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_ASSOC_VECTOR,
				  &reg);
	if (err)
		return err;

	mask = mv88e6xxx_port_mask(chip);
	reg &= ~mask;
	reg |= pav & mask;

	return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_ASSOC_VECTOR,
				    reg);
}

/* Offset 0x0C: Port ATU Control */

int mv88e6xxx_port_disable_learn_limit(struct mv88e6xxx_chip *chip, int port)
{
	return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_ATU_CTL, 0);
}

/* Offset 0x0D: (Priority) Override Register */

int mv88e6xxx_port_disable_pri_override(struct mv88e6xxx_chip *chip, int port)
{
	return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_PRI_OVERRIDE, 0);
}

/* Offset 0x0E: Policy & MGMT Control Register for FAMILY 6191X 6193X 6393X */

static int mv88e6393x_port_policy_read(struct mv88e6xxx_chip *chip, int port,
				       u16 pointer, u8 *data)
{
	u16 reg;
	int err;

	err = mv88e6xxx_port_write(chip, port, MV88E6393X_PORT_POLICY_MGMT_CTL,
				   pointer);
	if (err)
		return err;

	err = mv88e6xxx_port_read(chip, port, MV88E6393X_PORT_POLICY_MGMT_CTL,
				  &reg);
	if (err)
		return err;

	*data = reg;

	return 0;
}

static int mv88e6393x_port_policy_write(struct mv88e6xxx_chip *chip, int port,
					u16 pointer, u8 data)
{
	u16 reg;

	reg = MV88E6393X_PORT_POLICY_MGMT_CTL_UPDATE | pointer | data;

	return mv88e6xxx_port_write(chip, port, MV88E6393X_PORT_POLICY_MGMT_CTL,
				    reg);
}

static int mv88e6393x_port_policy_write_all(struct mv88e6xxx_chip *chip,
					    u16 pointer, u8 data)
{
	int err, port;

	for (port = 0; port < mv88e6xxx_num_ports(chip); port++) {
		if (dsa_is_unused_port(chip->ds, port))
			continue;

		err = mv88e6393x_port_policy_write(chip, port, pointer, data);
		if (err)
			return err;
	}

	return 0;
}

int mv88e6393x_set_egress_port(struct mv88e6xxx_chip *chip,
			       enum mv88e6xxx_egress_direction direction,
			       int port)
{
	u16 ptr;
	int err;

	switch (direction) {
	case MV88E6XXX_EGRESS_DIR_INGRESS:
		ptr = MV88E6393X_PORT_POLICY_MGMT_CTL_PTR_INGRESS_DEST;
		err = mv88e6393x_port_policy_write_all(chip, ptr, port);
		if (err)
			return err;
		break;
	case MV88E6XXX_EGRESS_DIR_EGRESS:
		ptr = MV88E6393X_G2_EGRESS_MONITOR_DEST;
		err = mv88e6xxx_g2_write(chip, ptr, port);
		if (err)
			return err;
		break;
	}

	return 0;
}

int mv88e6393x_port_set_upstream_port(struct mv88e6xxx_chip *chip, int port,
				      int upstream_port)
{
	u16 ptr = MV88E6393X_PORT_POLICY_MGMT_CTL_PTR_CPU_DEST;
	u8 data = MV88E6393X_PORT_POLICY_MGMT_CTL_CPU_DEST_MGMTPRI |
		  upstream_port;

	return mv88e6393x_port_policy_write(chip, port, ptr, data);
}

int mv88e6393x_port_mgmt_rsvd2cpu(struct mv88e6xxx_chip *chip)
{
	u16 ptr;
	int err;

	/* Consider the frames with reserved multicast destination
	 * addresses matching 01:80:c2:00:00:00 and
	 * 01:80:c2:00:00:02 as MGMT.
	 */
	ptr = MV88E6393X_PORT_POLICY_MGMT_CTL_PTR_01C280000000XLO;
	err = mv88e6393x_port_policy_write_all(chip, ptr, 0xff);
	if (err)
		return err;

	ptr = MV88E6393X_PORT_POLICY_MGMT_CTL_PTR_01C280000000XHI;
	err = mv88e6393x_port_policy_write_all(chip, ptr, 0xff);
	if (err)
		return err;

	ptr = MV88E6393X_PORT_POLICY_MGMT_CTL_PTR_01C280000002XLO;
	err = mv88e6393x_port_policy_write_all(chip, ptr, 0xff);
	if (err)
		return err;

	ptr = MV88E6393X_PORT_POLICY_MGMT_CTL_PTR_01C280000002XHI;
	err = mv88e6393x_port_policy_write_all(chip, ptr, 0xff);
	if (err)
		return err;

	return 0;
}

/* Offset 0x10 & 0x11: EPC */

static int mv88e6393x_port_epc_wait_ready(struct mv88e6xxx_chip *chip, int port)
{
	int bit = __bf_shf(MV88E6393X_PORT_EPC_CMD_BUSY);

	return mv88e6xxx_port_wait_bit(chip, port, MV88E6393X_PORT_EPC_CMD, bit, 0);
}

/* Port Ether type for 6393X family */

int mv88e6393x_port_set_ether_type(struct mv88e6xxx_chip *chip, int port,
				   u16 etype)
{
	u16 val;
	int err;

	err = mv88e6393x_port_epc_wait_ready(chip, port);
	if (err)
		return err;

	err = mv88e6xxx_port_write(chip, port, MV88E6393X_PORT_EPC_DATA, etype);
	if (err)
		return err;

	val = MV88E6393X_PORT_EPC_CMD_BUSY |
	      MV88E6393X_PORT_EPC_CMD_WRITE |
	      MV88E6393X_PORT_EPC_INDEX_PORT_ETYPE;

	return mv88e6xxx_port_write(chip, port, MV88E6393X_PORT_EPC_CMD, val);
}

/* Offset 0x0f: Port Ether type */

int mv88e6351_port_set_ether_type(struct mv88e6xxx_chip *chip, int port,
				  u16 etype)
{
	return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_ETH_TYPE, etype);
}

/* Offset 0x18: Port IEEE Priority Remapping Registers [0-3]
 * Offset 0x19: Port IEEE Priority Remapping Registers [4-7]
 */

int mv88e6095_port_tag_remap(struct mv88e6xxx_chip *chip, int port)
{
	int err;

	/* Use a direct priority mapping for all IEEE tagged frames */
	err = mv88e6xxx_port_write(chip, port,
				   MV88E6095_PORT_IEEE_PRIO_REMAP_0123,
				   0x3210);
	if (err)
		return err;

	return mv88e6xxx_port_write(chip, port,
				    MV88E6095_PORT_IEEE_PRIO_REMAP_4567,
				    0x7654);
}

static int mv88e6xxx_port_ieeepmt_write(struct mv88e6xxx_chip *chip,
					int port, u16 table, u8 ptr, u16 data)
{
	u16 reg;

	reg = MV88E6390_PORT_IEEE_PRIO_MAP_TABLE_UPDATE | table |
		(ptr << __bf_shf(MV88E6390_PORT_IEEE_PRIO_MAP_TABLE_PTR_MASK)) |
		(data & MV88E6390_PORT_IEEE_PRIO_MAP_TABLE_DATA_MASK);

	return mv88e6xxx_port_write(chip, port,
				    MV88E6390_PORT_IEEE_PRIO_MAP_TABLE, reg);
}

int mv88e6390_port_tag_remap(struct mv88e6xxx_chip *chip, int port)
{
	int err, i;
	u16 table;

	for (i = 0; i <= 7; i++) {
		table = MV88E6390_PORT_IEEE_PRIO_MAP_TABLE_INGRESS_PCP;
		err = mv88e6xxx_port_ieeepmt_write(chip, port, table, i,
						   (i | i << 4));
		if (err)
			return err;

		table = MV88E6390_PORT_IEEE_PRIO_MAP_TABLE_EGRESS_GREEN_PCP;
		err = mv88e6xxx_port_ieeepmt_write(chip, port, table, i, i);
		if (err)
			return err;

		table = MV88E6390_PORT_IEEE_PRIO_MAP_TABLE_EGRESS_YELLOW_PCP;
		err = mv88e6xxx_port_ieeepmt_write(chip, port, table, i, i);
		if (err)
			return err;

		table = MV88E6390_PORT_IEEE_PRIO_MAP_TABLE_EGRESS_AVB_PCP;
		err = mv88e6xxx_port_ieeepmt_write(chip, port, table, i, i);
		if (err)
			return err;
	}

	return 0;
}

/* Offset 0x0E: Policy Control Register */

static int
mv88e6xxx_port_policy_mapping_get_pos(enum mv88e6xxx_policy_mapping mapping,
				      enum mv88e6xxx_policy_action action,
				      u16 *mask, u16 *val, int *shift)
{
	switch (mapping) {
	case MV88E6XXX_POLICY_MAPPING_DA:
		*shift = __bf_shf(MV88E6XXX_PORT_POLICY_CTL_DA_MASK);
		*mask = MV88E6XXX_PORT_POLICY_CTL_DA_MASK;
		break;
	case MV88E6XXX_POLICY_MAPPING_SA:
		*shift = __bf_shf(MV88E6XXX_PORT_POLICY_CTL_SA_MASK);
		*mask = MV88E6XXX_PORT_POLICY_CTL_SA_MASK;
		break;
	case MV88E6XXX_POLICY_MAPPING_VTU:
		*shift = __bf_shf(MV88E6XXX_PORT_POLICY_CTL_VTU_MASK);
		*mask = MV88E6XXX_PORT_POLICY_CTL_VTU_MASK;
		break;
	case MV88E6XXX_POLICY_MAPPING_ETYPE:
		*shift = __bf_shf(MV88E6XXX_PORT_POLICY_CTL_ETYPE_MASK);
		*mask = MV88E6XXX_PORT_POLICY_CTL_ETYPE_MASK;
		break;
	case MV88E6XXX_POLICY_MAPPING_PPPOE:
		*shift = __bf_shf(MV88E6XXX_PORT_POLICY_CTL_PPPOE_MASK);
		*mask = MV88E6XXX_PORT_POLICY_CTL_PPPOE_MASK;
		break;
	case MV88E6XXX_POLICY_MAPPING_VBAS:
		*shift = __bf_shf(MV88E6XXX_PORT_POLICY_CTL_VBAS_MASK);
		*mask = MV88E6XXX_PORT_POLICY_CTL_VBAS_MASK;
		break;
	case MV88E6XXX_POLICY_MAPPING_OPT82:
		*shift = __bf_shf(MV88E6XXX_PORT_POLICY_CTL_OPT82_MASK);
		*mask = MV88E6XXX_PORT_POLICY_CTL_OPT82_MASK;
		break;
	case MV88E6XXX_POLICY_MAPPING_UDP:
		*shift = __bf_shf(MV88E6XXX_PORT_POLICY_CTL_UDP_MASK);
		*mask = MV88E6XXX_PORT_POLICY_CTL_UDP_MASK;
		break;
	default:
		return -EOPNOTSUPP;
	}

	switch (action) {
	case MV88E6XXX_POLICY_ACTION_NORMAL:
		*val = MV88E6XXX_PORT_POLICY_CTL_NORMAL;
		break;
	case MV88E6XXX_POLICY_ACTION_MIRROR:
		*val = MV88E6XXX_PORT_POLICY_CTL_MIRROR;
		break;
	case MV88E6XXX_POLICY_ACTION_TRAP:
		*val = MV88E6XXX_PORT_POLICY_CTL_TRAP;
		break;
	case MV88E6XXX_POLICY_ACTION_DISCARD:
		*val = MV88E6XXX_PORT_POLICY_CTL_DISCARD;
		break;
	default:
		return -EOPNOTSUPP;
	}

	return 0;
}

int mv88e6352_port_set_policy(struct mv88e6xxx_chip *chip, int port,
			      enum mv88e6xxx_policy_mapping mapping,
			      enum mv88e6xxx_policy_action action)
{
	u16 reg, mask, val;
	int shift;
	int err;

	err = mv88e6xxx_port_policy_mapping_get_pos(mapping, action, &mask,
						    &val, &shift);
	if (err)
		return err;

	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_POLICY_CTL, &reg);
	if (err)
		return err;

	reg &= ~mask;
	reg |= (val << shift) & mask;

	return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_POLICY_CTL, reg);
}

int mv88e6393x_port_set_policy(struct mv88e6xxx_chip *chip, int port,
			       enum mv88e6xxx_policy_mapping mapping,
			       enum mv88e6xxx_policy_action action)
{
	u16 mask, val;
	int shift;
	int err;
	u16 ptr;
	u8 reg;

	err = mv88e6xxx_port_policy_mapping_get_pos(mapping, action, &mask,
						    &val, &shift);
	if (err)
		return err;

	/* The 16-bit Port Policy CTL register from older chips is on 6393x
	 * changed to Port Policy MGMT CTL, which can access more data, but
	 * indirectly. The original 16-bit value is divided into two 8-bit
	 * registers.
	 */
	ptr = shift / 8;
	shift %= 8;
	mask >>= ptr * 8;

	err = mv88e6393x_port_policy_read(chip, port, ptr, &reg);
	if (err)
		return err;

	reg &= ~mask;
	reg |= (val << shift) & mask;

	return mv88e6393x_port_policy_write(chip, port, ptr, reg);
}