summaryrefslogtreecommitdiffstats
path: root/target/linux/lantiq/patches-3.8/0025-NET-MIPS-lantiq-adds-xrx200-net.patch
blob: 088d8c9e2d3a7e801b11ecadd33968b05cf38905 (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
From fbfdf78ba827a8f854ae3ed7b11ea6df4054ffb1 Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Mon, 22 Oct 2012 12:22:23 +0200
Subject: [PATCH 25/40] NET: MIPS: lantiq: adds xrx200-net

---
 drivers/net/ethernet/Kconfig         |    8 +-
 drivers/net/ethernet/Makefile        |    1 +
 drivers/net/ethernet/lantiq_pce.h    |  163 +++++
 drivers/net/ethernet/lantiq_xrx200.c | 1203 ++++++++++++++++++++++++++++++++++
 4 files changed, 1374 insertions(+), 1 deletion(-)
 create mode 100644 drivers/net/ethernet/lantiq_pce.h
 create mode 100644 drivers/net/ethernet/lantiq_xrx200.c

--- a/drivers/net/ethernet/Kconfig
+++ b/drivers/net/ethernet/Kconfig
@@ -83,7 +83,13 @@ config LANTIQ_ETOP
 	tristate "Lantiq SoC ETOP driver"
 	depends on SOC_TYPE_XWAY
 	---help---
-	  Support for the MII0 inside the Lantiq SoC
+	  Support for the MII0 inside the Lantiq ADSL SoC
+
+config LANTIQ_XRX200
+	tristate "Lantiq SoC XRX200 driver"
+	depends on SOC_TYPE_XWAY
+	---help---
+	  Support for the MII0 inside the Lantiq VDSL SoC
 
 source "drivers/net/ethernet/marvell/Kconfig"
 source "drivers/net/ethernet/mellanox/Kconfig"
--- a/drivers/net/ethernet/Makefile
+++ b/drivers/net/ethernet/Makefile
@@ -36,6 +36,7 @@ obj-$(CONFIG_IP1000) += icplus/
 obj-$(CONFIG_JME) += jme.o
 obj-$(CONFIG_KORINA) += korina.o
 obj-$(CONFIG_LANTIQ_ETOP) += lantiq_etop.o
+obj-$(CONFIG_LANTIQ_XRX200) += lantiq_xrx200.o
 obj-$(CONFIG_NET_VENDOR_MARVELL) += marvell/
 obj-$(CONFIG_NET_VENDOR_MELLANOX) += mellanox/
 obj-$(CONFIG_NET_VENDOR_MICREL) += micrel/
--- /dev/null
+++ b/drivers/net/ethernet/lantiq_pce.h
@@ -0,0 +1,163 @@
+/*
+ *   This program is free software; you can redistribute it and/or modify it
+ *   under the terms of the GNU General Public License version 2 as published
+ *   by the Free Software Foundation.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ *
+ *   Copyright (C) 2010 Lantiq Deutschland GmbH
+ *   Copyright (C) 2012 John Crispin <blogic@openwrt.org>
+ *
+ *   PCE microcode extracted from UGW5.2 switch api
+ */
+
+/* Switch API Micro Code V0.3 */
+enum {
+	OUT_MAC0 = 0,
+	OUT_MAC1,
+	OUT_MAC2,
+	OUT_MAC3,
+	OUT_MAC4,
+	OUT_MAC5,
+	OUT_ETHTYP,
+	OUT_VTAG0,
+	OUT_VTAG1,
+	OUT_ITAG0,
+	OUT_ITAG1,	/*10 */
+	OUT_ITAG2,
+	OUT_ITAG3,
+	OUT_IP0,
+	OUT_IP1,
+	OUT_IP2,
+	OUT_IP3,
+	OUT_SIP0,
+	OUT_SIP1,
+	OUT_SIP2,
+	OUT_SIP3,	/*20*/
+	OUT_SIP4,
+	OUT_SIP5,
+	OUT_SIP6,
+	OUT_SIP7,
+	OUT_DIP0,
+	OUT_DIP1,
+	OUT_DIP2,
+	OUT_DIP3,
+	OUT_DIP4,
+	OUT_DIP5,	/*30*/
+	OUT_DIP6,
+	OUT_DIP7,
+	OUT_SESID,
+	OUT_PROT,
+	OUT_APP0,
+	OUT_APP1,
+	OUT_IGMP0,
+	OUT_IGMP1,
+	OUT_IPOFF,	/*39*/
+	OUT_NONE =  63
+};
+
+/* parser's microcode length type */
+#define INSTR		0
+#define IPV6		1
+#define LENACCU		2
+
+/* parser's microcode flag type */
+enum {
+	FLAG_ITAG =  0,
+	FLAG_VLAN,
+	FLAG_SNAP,
+	FLAG_PPPOE,
+	FLAG_IPV6,
+	FLAG_IPV6FL,
+	FLAG_IPV4,
+	FLAG_IGMP,
+	FLAG_TU,
+	FLAG_HOP,
+	FLAG_NN1,	/*10 */
+	FLAG_NN2,
+	FLAG_END,
+	FLAG_NO,	/*13*/
+};
+
+/* Micro code version V2_11 (extension for parsing IPv6 in PPPoE) */
+#define MC_ENTRY(val, msk, ns, out, len, type, flags, ipv4_len) \
+	{ {val, msk, (ns<<10 | out<<4 | len>>1), (len&1)<<15 | type<<13 | flags<<9 | ipv4_len<<8 }}
+struct pce_microcode {
+	unsigned short val[4];
+/*	unsigned short val_2;
+	unsigned short val_1;
+	unsigned short val_0;*/
+} pce_microcode[] = {
+	/*      value    mask    ns  fields      L  type     flags       ipv4_len */
+	MC_ENTRY(0x88c3, 0xFFFF,  1, OUT_ITAG0,  4, INSTR,   FLAG_ITAG,  0),
+	MC_ENTRY(0x8100, 0xFFFF,  2, OUT_VTAG0,  2, INSTR,   FLAG_VLAN,  0),
+	MC_ENTRY(0x88A8, 0xFFFF,  1, OUT_VTAG0,  2, INSTR,   FLAG_VLAN,  0),
+	MC_ENTRY(0x8100, 0xFFFF,  1, OUT_VTAG0,  2, INSTR,   FLAG_VLAN,  0),
+	MC_ENTRY(0x8864, 0xFFFF, 17, OUT_ETHTYP, 1, INSTR,   FLAG_NO,    0),
+	MC_ENTRY(0x0800, 0xFFFF, 21, OUT_ETHTYP, 1, INSTR,   FLAG_NO,    0),
+	MC_ENTRY(0x86DD, 0xFFFF, 22, OUT_ETHTYP, 1, INSTR,   FLAG_NO,    0),
+	MC_ENTRY(0x8863, 0xFFFF, 16, OUT_ETHTYP, 1, INSTR,   FLAG_NO,    0),
+	MC_ENTRY(0x0000, 0xF800, 10, OUT_NONE,   0, INSTR,   FLAG_NO,    0),
+	MC_ENTRY(0x0000, 0x0000, 38, OUT_ETHTYP, 1, INSTR,   FLAG_NO,    0),
+	MC_ENTRY(0x0600, 0x0600, 38, OUT_ETHTYP, 1, INSTR,   FLAG_NO,    0),
+	MC_ENTRY(0x0000, 0x0000, 12, OUT_NONE,   1, INSTR,   FLAG_NO,    0),
+	MC_ENTRY(0xAAAA, 0xFFFF, 14, OUT_NONE,   1, INSTR,   FLAG_NO,    0),
+	MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE,   0, INSTR,   FLAG_NO,    0),
+	MC_ENTRY(0x0300, 0xFF00, 39, OUT_NONE,   0, INSTR,   FLAG_SNAP,  0),
+	MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE,   0, INSTR,   FLAG_NO,    0),
+	MC_ENTRY(0x0000, 0x0000, 39, OUT_DIP7,   3, INSTR,   FLAG_NO,    0),
+	MC_ENTRY(0x0000, 0x0000, 18, OUT_DIP7,   3, INSTR,   FLAG_PPPOE, 0),
+	MC_ENTRY(0x0021, 0xFFFF, 21, OUT_NONE,   1, INSTR,   FLAG_NO,    0),
+	MC_ENTRY(0x0057, 0xFFFF, 22, OUT_NONE,   1, INSTR,   FLAG_NO,    0),
+	MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE,   0, INSTR,   FLAG_NO,    0),
+	MC_ENTRY(0x4000, 0xF000, 24, OUT_IP0,    4, INSTR,   FLAG_IPV4,  1),
+	MC_ENTRY(0x6000, 0xF000, 27, OUT_IP0,    3, INSTR,   FLAG_IPV6,  0),
+	MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE,   0, INSTR,   FLAG_NO,    0),
+	MC_ENTRY(0x0000, 0x0000, 25, OUT_IP3,    2, INSTR,   FLAG_NO,    0),
+	MC_ENTRY(0x0000, 0x0000, 26, OUT_SIP0,   4, INSTR,   FLAG_NO,    0),
+	MC_ENTRY(0x0000, 0x0000, 38, OUT_NONE,   0, LENACCU, FLAG_NO,    0),
+	MC_ENTRY(0x1100, 0xFF00, 37, OUT_PROT,   1, INSTR,   FLAG_NO,    0),
+	MC_ENTRY(0x0600, 0xFF00, 37, OUT_PROT,   1, INSTR,   FLAG_NO,    0),
+	MC_ENTRY(0x0000, 0xFF00, 33, OUT_IP3,   17, INSTR,   FLAG_HOP,   0),
+	MC_ENTRY(0x2B00, 0xFF00, 33, OUT_IP3,   17, INSTR,   FLAG_NN1,   0),
+	MC_ENTRY(0x3C00, 0xFF00, 33, OUT_IP3,   17, INSTR,   FLAG_NN2,   0),
+	MC_ENTRY(0x0000, 0x0000, 37, OUT_PROT,   1, INSTR,   FLAG_NO,    0),
+	MC_ENTRY(0x0000, 0xFF00, 33, OUT_NONE,   0, IPV6,    FLAG_HOP,   0),
+	MC_ENTRY(0x2B00, 0xFF00, 33, OUT_NONE,   0, IPV6,    FLAG_NN1,   0),
+	MC_ENTRY(0x3C00, 0xFF00, 33, OUT_NONE,   0, IPV6,    FLAG_NN2,   0),
+	MC_ENTRY(0x0000, 0x0000, 38, OUT_PROT,   1, IPV6,    FLAG_NO,    0),
+	MC_ENTRY(0x0000, 0x0000, 38, OUT_SIP0,  16, INSTR,   FLAG_NO,    0),
+	MC_ENTRY(0x0000, 0x0000, 39, OUT_APP0,   4, INSTR,   FLAG_IGMP,  0),
+	MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE,   0, INSTR,   FLAG_END,   0),
+	MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE,   0, INSTR,   FLAG_END,   0),
+	MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE,   0, INSTR,   FLAG_END,   0),
+	MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE,   0, INSTR,   FLAG_END,   0),
+	MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE,   0, INSTR,   FLAG_END,   0),
+	MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE,   0, INSTR,   FLAG_END,   0),
+	MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE,   0, INSTR,   FLAG_END,   0),
+	MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE,   0, INSTR,   FLAG_END,   0),
+	MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE,   0, INSTR,   FLAG_END,   0),
+	MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE,   0, INSTR,   FLAG_END,   0),
+	MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE,   0, INSTR,   FLAG_END,   0),
+	MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE,   0, INSTR,   FLAG_END,   0),
+	MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE,   0, INSTR,   FLAG_END,   0),
+	MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE,   0, INSTR,   FLAG_END,   0),
+	MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE,   0, INSTR,   FLAG_END,   0),
+	MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE,   0, INSTR,   FLAG_END,   0),
+	MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE,   0, INSTR,   FLAG_END,   0),
+	MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE,   0, INSTR,   FLAG_END,   0),
+	MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE,   0, INSTR,   FLAG_END,   0),
+	MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE,   0, INSTR,   FLAG_END,   0),
+	MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE,   0, INSTR,   FLAG_END,   0),
+	MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE,   0, INSTR,   FLAG_END,   0),
+	MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE,   0, INSTR,   FLAG_END,   0),
+	MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE,   0, INSTR,   FLAG_END,   0),
+	MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE,   0, INSTR,   FLAG_END,   0),
+};
--- /dev/null
+++ b/drivers/net/ethernet/lantiq_xrx200.c
@@ -0,0 +1,1203 @@
+/*
+ *   This program is free software; you can redistribute it and/or modify it
+ *   under the terms of the GNU General Public License version 2 as published
+ *   by the Free Software Foundation.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ *
+ *   Copyright (C) 2010 Lantiq Deutschland
+ *   Copyright (C) 2012 John Crispin <blogic@openwrt.org>
+ */
+
+#include <linux/etherdevice.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/clk.h>
+#include <asm/delay.h>
+
+#include <linux/of_net.h>
+#include <linux/of_mdio.h>
+#include <linux/of_gpio.h>
+
+#include <xway_dma.h>
+#include <lantiq_soc.h>
+
+#include "lantiq_pce.h"
+
+#define SW_POLLING
+#define SW_ROUTING
+#define SW_PORTMAP
+
+#ifdef SW_ROUTING
+  #ifdef SW_PORTMAP
+#define XRX200_MAX_DEV		7
+  #else
+#define XRX200_MAX_DEV		2
+  #endif
+#else
+#define XRX200_MAX_DEV		1
+#endif
+
+#define XRX200_MAX_PORT		7
+#define XRX200_MAX_DMA		8
+
+#define XRX200_HEADROOM		4
+
+#define XRX200_TX_TIMEOUT	(10 * HZ)
+
+/* port type */
+#define XRX200_PORT_TYPE_PHY	1
+#define XRX200_PORT_TYPE_MAC	2
+
+/* DMA */
+#define XRX200_DMA_CRC_LEN	0x4
+#define XRX200_DMA_DATA_LEN	0x600
+#define XRX200_DMA_IRQ		INT_NUM_IM2_IRL0
+#define XRX200_DMA_RX		0
+#define XRX200_DMA_TX		1
+
+/* fetch / store dma */
+#define FDMA_PCTRL0		0x2A00
+#define FDMA_PCTRLx(x)		(FDMA_PCTRL0 + (x * 0x18))
+#define SDMA_PCTRL0		0x2F00
+#define SDMA_PCTRLx(x)		(SDMA_PCTRL0 + (x * 0x18))
+
+/* buffer management */
+#define BM_PCFG0		0x200
+#define BM_PCFGx(x)		(BM_PCFG0 + (x * 8))
+
+/* MDIO */
+#define MDIO_GLOB		0x0000
+#define MDIO_CTRL		0x0020
+#define MDIO_READ		0x0024
+#define MDIO_WRITE		0x0028
+#define MDIO_PHY0		0x0054
+#define MDIO_PHY(x)		(0x0054 - (x * sizeof(unsigned)))
+#define MDIO_CLK_CFG0		0x002C
+#define MDIO_CLK_CFG1		0x0030
+
+#define MDIO_GLOB_ENABLE	0x8000
+#define MDIO_BUSY		BIT(12)
+#define MDIO_RD			BIT(11)
+#define MDIO_WR			BIT(10)
+#define MDIO_MASK		0x1f
+#define MDIO_ADDRSHIFT		5
+#define MDIO1_25MHZ		9
+
+#define MDIO_PHY_LINK_DOWN	0x4000
+#define MDIO_PHY_LINK_UP	0x2000
+
+#define MDIO_PHY_SPEED_M10	0x0000
+#define MDIO_PHY_SPEED_M100	0x0800
+#define MDIO_PHY_SPEED_G1	0x1000
+
+#define MDIO_PHY_FDUP_EN	0x0600
+#define MDIO_PHY_FDUP_DIS	0x0200
+
+#define MDIO_PHY_LINK_MASK	0x6000
+#define MDIO_PHY_SPEED_MASK	0x1800
+#define MDIO_PHY_FDUP_MASK	0x0600
+#define MDIO_PHY_ADDR_MASK	0x001f
+#define MDIO_UPDATE_MASK	MDIO_PHY_ADDR_MASK | MDIO_PHY_LINK_MASK | \
+					MDIO_PHY_SPEED_MASK | MDIO_PHY_FDUP_MASK
+
+/* MII */
+#define MII_CFG(p)		(p * 8)
+
+#define MII_CFG_EN		BIT(14)
+
+#define MII_CFG_MODE_MIIP	0x0
+#define MII_CFG_MODE_MIIM	0x1
+#define MII_CFG_MODE_RMIIP	0x2
+#define MII_CFG_MODE_RMIIM	0x3
+#define MII_CFG_MODE_RGMII	0x4
+#define MII_CFG_MODE_MASK	0xf
+
+#define MII_CFG_RATE_M2P5	0x00
+#define MII_CFG_RATE_M25	0x10
+#define MII_CFG_RATE_M125	0x20
+#define MII_CFG_RATE_M50	0x30
+#define MII_CFG_RATE_AUTO	0x40
+#define MII_CFG_RATE_MASK	0x70
+
+/* cpu port mac */
+#define PMAC_HD_CTL		0x0000
+#define PMAC_RX_IPG		0x0024
+#define PMAC_EWAN		0x002c
+
+#define PMAC_IPG_MASK		0xf
+#define PMAC_HD_CTL_AS		0x0008
+#define PMAC_HD_CTL_AC		0x0004
+#define PMAC_HD_CTL_RXSH	0x0040
+#define PMAC_HD_CTL_AST		0x0080
+#define PMAC_HD_CTL_RST		0x0100
+
+/* PCE */
+#define PCE_TBL_KEY(x)		(0x1100 + ((7 - x) * 4))
+#define PCE_TBL_MASK		0x1120
+#define PCE_TBL_VAL(x)		(0x1124 + ((4 - x) * 4))
+#define PCE_TBL_ADDR		0x1138
+#define PCE_TBL_CTRL		0x113c
+#define PCE_PMAP1		0x114c
+#define PCE_PMAP2		0x1150
+#define PCE_PMAP3		0x1154
+#define PCE_GCTRL_REG(x)	(0x1158 + (x * 4))
+#define PCE_PCTRL_REG(p, x)	(0x1200 + (((p * 0xa) + x) * 4))
+
+#define PCE_TBL_BUSY		BIT(15)
+#define PCE_TBL_CFG_ADDR_MASK	0x1f
+#define PCE_TBL_CFG_ADWR	0x20
+#define PCE_TBL_CFG_ADWR_MASK	0x60
+#define PCE_INGRESS		BIT(11)
+
+/* MAC */
+#define MAC_FLEN_REG		(0x2314)
+#define MAC_CTRL_REG(p, x)	(0x240c + (((p * 0xc) + x) * 4))
+
+/* buffer management */
+#define BM_PCFG(p)		(0x200 + (p * 8))
+
+/* special tag in TX path header */
+#define SPID_SHIFT		24
+#define DPID_SHIFT		16
+#define DPID_ENABLE		1
+#define SPID_CPU_PORT		2
+#define PORT_MAP_SEL		BIT(15)
+#define PORT_MAP_EN		BIT(14)
+#define PORT_MAP_SHIFT		1
+#define PORT_MAP_MASK		0x3f
+
+#define SPPID_MASK		0x7
+#define SPPID_SHIFT		4
+
+/* MII regs not yet in linux */
+#define MDIO_DEVAD_NONE		(-1)
+#define ADVERTIZE_MPD		(1 << 10)
+
+struct xrx200_port {
+	u8 num;
+	u8 phy_addr;
+	u16 flags;
+	phy_interface_t phy_if;
+
+	int link;
+	int gpio;
+	enum of_gpio_flags gpio_flags;
+
+	struct phy_device *phydev;
+	struct device_node *phy_node;
+};
+
+struct xrx200_chan {
+	int idx;
+	int refcount;
+	int tx_free;
+
+	struct net_device dummy_dev;
+	struct net_device *devs[XRX200_MAX_DEV];
+
+	struct napi_struct napi;
+	struct ltq_dma_channel dma;
+	struct sk_buff *skb[LTQ_DESC_NUM];
+};
+
+struct xrx200_hw {
+	struct clk *clk;
+	struct mii_bus *mii_bus;
+
+	struct xrx200_chan chan[XRX200_MAX_DMA];
+
+	struct net_device *devs[XRX200_MAX_DEV];
+	int num_devs;
+
+	int port_map[XRX200_MAX_PORT];
+	unsigned short wan_map;
+
+	spinlock_t lock;
+};
+
+struct xrx200_priv {
+	struct net_device_stats stats;
+	int id;
+
+	struct xrx200_port port[XRX200_MAX_PORT];
+	int num_port;
+	int wan;
+	unsigned short port_map;
+	const void *mac;
+
+	struct xrx200_hw *hw;
+};
+
+static __iomem void *xrx200_switch_membase;
+static __iomem void *xrx200_mii_membase;
+static __iomem void *xrx200_mdio_membase;
+static __iomem void *xrx200_pmac_membase;
+
+#define ltq_switch_r32(x)	ltq_r32(xrx200_switch_membase + (x))
+#define ltq_switch_w32(x, y)	ltq_w32(x, xrx200_switch_membase + (y))
+#define ltq_switch_w32_mask(x, y, z) \
+			ltq_w32_mask(x, y, xrx200_switch_membase + (z))
+
+#define ltq_mdio_r32(x)		ltq_r32(xrx200_mdio_membase + (x))
+#define ltq_mdio_w32(x, y)	ltq_w32(x, xrx200_mdio_membase + (y))
+#define ltq_mdio_w32_mask(x, y, z) \
+			ltq_w32_mask(x, y, xrx200_mdio_membase + (z))
+
+#define ltq_mii_r32(x)		ltq_r32(xrx200_mii_membase + (x))
+#define ltq_mii_w32(x, y)	ltq_w32(x, xrx200_mii_membase + (y))
+#define ltq_mii_w32_mask(x, y, z) \
+			ltq_w32_mask(x, y, xrx200_mii_membase + (z))
+
+#define ltq_pmac_r32(x)		ltq_r32(xrx200_pmac_membase + (x))
+#define ltq_pmac_w32(x, y)	ltq_w32(x, xrx200_pmac_membase + (y))
+#define ltq_pmac_w32_mask(x, y, z) \
+			ltq_w32_mask(x, y, xrx200_pmac_membase + (z))
+
+static int xrx200_open(struct net_device *dev)
+{
+	struct xrx200_priv *priv = netdev_priv(dev);
+	unsigned long flags;
+	int i;
+
+	for (i = 0; i < XRX200_MAX_DMA; i++) {
+		if (!priv->hw->chan[i].dma.irq)
+			continue;
+		spin_lock_irqsave(&priv->hw->lock, flags);
+		if (!priv->hw->chan[i].refcount) {
+			napi_enable(&priv->hw->chan[i].napi);
+			ltq_dma_open(&priv->hw->chan[i].dma);
+		}
+		priv->hw->chan[i].refcount++;
+		spin_unlock_irqrestore(&priv->hw->lock, flags);
+	}
+	for (i = 0; i < priv->num_port; i++)
+		if (priv->port[i].phydev)
+			phy_start(priv->port[i].phydev);
+	netif_start_queue(dev);
+
+	return 0;
+}
+
+static int xrx200_close(struct net_device *dev)
+{
+	struct xrx200_priv *priv = netdev_priv(dev);
+	unsigned long flags;
+	int i;
+
+	netif_stop_queue(dev);
+
+	for (i = 0; i < priv->num_port; i++)
+		if (priv->port[i].phydev)
+			phy_stop(priv->port[i].phydev);
+
+	for (i = 0; i < XRX200_MAX_DMA; i++) {
+		if (!priv->hw->chan[i].dma.irq)
+			continue;
+		spin_lock_irqsave(&priv->hw->lock, flags);
+		priv->hw->chan[i].refcount--;
+		if (!priv->hw->chan[i].refcount) {
+			napi_disable(&priv->hw->chan[i].napi);
+			ltq_dma_close(&priv->hw->chan[XRX200_DMA_RX].dma);
+		}
+		spin_unlock_irqrestore(&priv->hw->lock, flags);
+	}
+
+	return 0;
+}
+
+static int xrx200_alloc_skb(struct xrx200_chan *ch)
+{
+#define DMA_PAD	(NET_IP_ALIGN + NET_SKB_PAD)
+	ch->skb[ch->dma.desc] = dev_alloc_skb(XRX200_DMA_DATA_LEN + DMA_PAD);
+	if (!ch->skb[ch->dma.desc])
+		return -ENOMEM;
+
+	skb_reserve(ch->skb[ch->dma.desc], NET_SKB_PAD);
+	ch->dma.desc_base[ch->dma.desc].addr = dma_map_single(NULL,
+		ch->skb[ch->dma.desc]->data, XRX200_DMA_DATA_LEN,
+			DMA_FROM_DEVICE);
+	ch->dma.desc_base[ch->dma.desc].addr =
+		CPHYSADDR(ch->skb[ch->dma.desc]->data);
+	ch->dma.desc_base[ch->dma.desc].ctl =
+		LTQ_DMA_OWN | LTQ_DMA_RX_OFFSET(NET_IP_ALIGN) |
+		XRX200_DMA_DATA_LEN;
+	skb_reserve(ch->skb[ch->dma.desc], NET_IP_ALIGN);
+
+	return 0;
+}
+
+static void xrx200_hw_receive(struct xrx200_chan *ch, int id)
+{
+	struct net_device *dev = ch->devs[id];
+	struct xrx200_priv *priv = netdev_priv(dev);
+	struct ltq_dma_desc *desc = &ch->dma.desc_base[ch->dma.desc];
+	struct sk_buff *skb = ch->skb[ch->dma.desc];
+	int len = (desc->ctl & LTQ_DMA_SIZE_MASK) - XRX200_DMA_CRC_LEN;
+	unsigned long flags;
+
+	spin_lock_irqsave(&priv->hw->lock, flags);
+	if (xrx200_alloc_skb(ch)) {
+		netdev_err(dev,
+			"failed to allocate new rx buffer, stopping DMA\n");
+		ltq_dma_close(&ch->dma);
+	}
+
+	ch->dma.desc++;
+	ch->dma.desc %= LTQ_DESC_NUM;
+	spin_unlock_irqrestore(&priv->hw->lock, flags);
+
+	skb_put(skb, len);
+#ifdef SW_ROUTING
+	skb_pull(skb, 8);
+#endif
+	skb->dev = dev;
+	skb->protocol = eth_type_trans(skb, dev);
+	netif_receive_skb(skb);
+	priv->stats.rx_packets++;
+	priv->stats.rx_bytes+=len;
+}
+
+static int xrx200_poll_rx(struct napi_struct *napi, int budget)
+{
+	struct xrx200_chan *ch = container_of(napi,
+				struct xrx200_chan, napi);
+	struct xrx200_priv *priv = netdev_priv(ch->devs[0]);
+	int rx = 0;
+	int complete = 0;
+	unsigned long flags;
+
+	while ((rx < budget) && !complete) {
+		struct ltq_dma_desc *desc = &ch->dma.desc_base[ch->dma.desc];
+		if ((desc->ctl & (LTQ_DMA_OWN | LTQ_DMA_C)) == LTQ_DMA_C) {
+#ifdef SW_ROUTING
+			struct sk_buff *skb = ch->skb[ch->dma.desc];
+			u32 *special_tag = (u32*)skb->data;
+			int port = (special_tag[1] >> SPPID_SHIFT) & SPPID_MASK;
+			xrx200_hw_receive(ch, priv->hw->port_map[port]);
+#else
+			xrx200_hw_receive(ch, 0);
+#endif
+			rx++;
+		} else {
+			complete = 1;
+		}
+	}
+	if (complete || !rx) {
+			napi_complete(&ch->napi);
+		spin_lock_irqsave(&priv->hw->lock, flags);
+		ltq_dma_ack_irq(&ch->dma);
+		spin_unlock_irqrestore(&priv->hw->lock, flags);
+	}
+	return rx;
+}
+
+static int xrx200_poll_tx(struct napi_struct *napi, int budget)
+{
+	struct xrx200_chan *ch =
+		container_of(napi, struct xrx200_chan, napi);
+	struct xrx200_priv *priv = netdev_priv(ch->devs[0]);
+	unsigned long flags;
+	int i;
+
+	spin_lock_irqsave(&priv->hw->lock, flags);
+	while ((ch->dma.desc_base[ch->tx_free].ctl &
+			(LTQ_DMA_OWN | LTQ_DMA_C)) == LTQ_DMA_C) {
+		dev_kfree_skb_any(ch->skb[ch->tx_free]);
+		ch->skb[ch->tx_free] = NULL;
+		memset(&ch->dma.desc_base[ch->tx_free], 0,
+			sizeof(struct ltq_dma_desc));
+		ch->tx_free++;
+		ch->tx_free %= LTQ_DESC_NUM;
+	}
+	spin_unlock_irqrestore(&priv->hw->lock, flags);
+
+	for (i = 0; i < XRX200_MAX_DEV && ch->devs[i]; i++) {
+		struct netdev_queue *txq =
+			netdev_get_tx_queue(ch->devs[i], 0);
+		if (netif_tx_queue_stopped(txq))
+			netif_tx_start_queue(txq);
+	}
+	napi_complete(&ch->napi);
+	spin_lock_irqsave(&priv->hw->lock, flags);
+	ltq_dma_ack_irq(&ch->dma);
+	spin_unlock_irqrestore(&priv->hw->lock, flags);
+
+	return 1;
+}
+
+static struct net_device_stats *xrx200_get_stats (struct net_device *dev)
+{
+	struct xrx200_priv *priv = netdev_priv(dev);
+
+	return &priv->stats;
+}
+
+static void xrx200_tx_timeout(struct net_device *dev)
+{
+	struct xrx200_priv *priv = netdev_priv(dev);
+
+	printk(KERN_ERR "%s: transmit timed out, disable the dma channel irq\n", dev->name);
+
+	priv->stats.tx_errors++;
+	netif_wake_queue(dev);
+}
+
+static int xrx200_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+	int queue = skb_get_queue_mapping(skb);
+	struct netdev_queue *txq = netdev_get_tx_queue(dev, queue);
+	struct xrx200_priv *priv = netdev_priv(dev);
+	struct xrx200_chan *ch = &priv->hw->chan[XRX200_DMA_TX];
+	struct ltq_dma_desc *desc = &ch->dma.desc_base[ch->dma.desc];
+	unsigned long flags;
+	u32 byte_offset;
+	int len;
+#ifdef SW_ROUTING
+  #ifdef SW_PORTMAP
+	u32 special_tag = (SPID_CPU_PORT << SPID_SHIFT) | PORT_MAP_SEL | PORT_MAP_EN | DPID_ENABLE;
+  #else
+	u32 special_tag = (SPID_CPU_PORT << SPID_SHIFT) | DPID_ENABLE;
+  #endif
+#endif
+
+	len = skb->len < ETH_ZLEN ? ETH_ZLEN : skb->len;
+
+	if ((desc->ctl & (LTQ_DMA_OWN | LTQ_DMA_C)) || ch->skb[ch->dma.desc]) {
+		netdev_err(dev, "tx ring full\n");
+		netif_tx_stop_queue(txq);
+		return NETDEV_TX_BUSY;
+	}
+#ifdef SW_ROUTING
+  #ifdef SW_PORTMAP
+	special_tag |= priv->port_map << PORT_MAP_SHIFT;
+  #else
+	if(priv->id)
+		special_tag |= (1 << DPID_SHIFT);
+  #endif
+	if(skb_headroom(skb) < 4) {
+		struct sk_buff *tmp = skb_realloc_headroom(skb, 4);
+		dev_kfree_skb_any(skb);
+		skb = tmp;
+	}
+	skb_push(skb, 4);
+	memcpy(skb->data, &special_tag, sizeof(u32));
+	len += 4;
+#endif
+
+	/* dma needs to start on a 16 byte aligned address */
+	byte_offset = CPHYSADDR(skb->data) % 16;
+	ch->skb[ch->dma.desc] = skb;
+
+	dev->trans_start = jiffies;
+
+	spin_lock_irqsave(&priv->hw->lock, flags);
+	desc->addr = ((unsigned int) dma_map_single(NULL, skb->data, len,
+						DMA_TO_DEVICE)) - byte_offset;
+	wmb();
+	desc->ctl = LTQ_DMA_OWN | LTQ_DMA_SOP | LTQ_DMA_EOP |
+		LTQ_DMA_TX_OFFSET(byte_offset) | (len & LTQ_DMA_SIZE_MASK);
+	ch->dma.desc++;
+	ch->dma.desc %= LTQ_DESC_NUM;
+	spin_unlock_irqrestore(&priv->hw->lock, flags);
+
+	if (ch->dma.desc_base[ch->dma.desc].ctl & LTQ_DMA_OWN)
+		netif_tx_stop_queue(txq);
+
+	priv->stats.tx_packets++;
+	priv->stats.tx_bytes+=len;
+
+	return NETDEV_TX_OK;
+}
+
+static irqreturn_t xrx200_dma_irq(int irq, void *priv)
+{
+	struct xrx200_hw *hw = priv;
+	int ch = irq - XRX200_DMA_IRQ;
+
+	napi_schedule(&hw->chan[ch].napi);
+
+	return IRQ_HANDLED;
+}
+
+static int xrx200_dma_init(struct xrx200_hw *hw)
+{
+	int i, err = 0;
+
+	ltq_dma_init_port(DMA_PORT_ETOP);
+
+	for (i = 0; i < 8 && !err; i++) {
+		int irq = XRX200_DMA_IRQ + i;
+		struct xrx200_chan *ch = &hw->chan[i];
+
+		ch->idx = ch->dma.nr = i;
+
+		if (i == XRX200_DMA_TX) {
+			ltq_dma_alloc_tx(&ch->dma);
+			err = request_irq(irq, xrx200_dma_irq, 0, "vrx200_tx", hw);
+		} else if (i == XRX200_DMA_RX) {
+			ltq_dma_alloc_rx(&ch->dma);
+			for (ch->dma.desc = 0; ch->dma.desc < LTQ_DESC_NUM;
+					ch->dma.desc++)
+				if (xrx200_alloc_skb(ch))
+					err = -ENOMEM;
+			ch->dma.desc = 0;
+			err = request_irq(irq, xrx200_dma_irq, 0, "vrx200_rx", hw);
+		} else
+			continue;
+
+		if (!err)
+			ch->dma.irq = irq;
+	}
+
+	return err;
+}
+
+#ifdef SW_POLLING
+static void xrx200_gmac_update(struct xrx200_port *port)
+{
+	u16 phyaddr = port->phydev->addr & MDIO_PHY_ADDR_MASK;
+	u16 miimode = ltq_mii_r32(MII_CFG(port->num)) & MII_CFG_MODE_MASK;
+	u16 miirate = 0;
+
+	switch (port->phydev->speed) {
+	case SPEED_1000:
+		phyaddr |= MDIO_PHY_SPEED_G1;
+		miirate = MII_CFG_RATE_M125;
+		break;
+
+	case SPEED_100:
+		phyaddr |= MDIO_PHY_SPEED_M100;
+		switch (miimode) {
+		case MII_CFG_MODE_RMIIM:
+		case MII_CFG_MODE_RMIIP:
+			miirate = MII_CFG_RATE_M50;
+			break;
+		default:
+			miirate = MII_CFG_RATE_M25;
+			break;
+		}
+		break;
+
+	default:
+		phyaddr |= MDIO_PHY_SPEED_M10;
+		miirate = MII_CFG_RATE_M2P5;
+		break;
+	}
+
+	if (port->phydev->link)
+		phyaddr |= MDIO_PHY_LINK_UP;
+	else
+		phyaddr |= MDIO_PHY_LINK_DOWN;
+
+	if (port->phydev->duplex == DUPLEX_FULL)
+		phyaddr |= MDIO_PHY_FDUP_EN;
+	else
+		phyaddr |= MDIO_PHY_FDUP_DIS;
+
+	ltq_mdio_w32_mask(MDIO_UPDATE_MASK, phyaddr, MDIO_PHY(port->num));
+	ltq_mii_w32_mask(MII_CFG_RATE_MASK, miirate, MII_CFG(port->num));
+	udelay(1);
+}
+#else
+static void xrx200_gmac_update(struct xrx200_port *port)
+{
+
+}
+#endif
+
+static void xrx200_mdio_link(struct net_device *dev)
+{
+	struct xrx200_priv *priv = netdev_priv(dev);
+	int i;
+
+	for (i = 0; i < priv->num_port; i++) {
+		if (!priv->port[i].phydev)
+			continue;
+
+		if (priv->port[i].link != priv->port[i].phydev->link) {
+			xrx200_gmac_update(&priv->port[i]);
+			priv->port[i].link = priv->port[i].phydev->link;
+			netdev_info(dev, "port %d %s link\n",
+				priv->port[i].num,
+				(priv->port[i].link)?("got"):("lost"));
+		}
+	}
+}
+
+static inline int xrx200_mdio_poll(struct mii_bus *bus)
+{
+	unsigned cnt = 10000;
+
+	while (likely(cnt--)) {
+		unsigned ctrl = ltq_mdio_r32(MDIO_CTRL);
+		if ((ctrl & MDIO_BUSY) == 0)
+			return 0;
+	}
+
+	return 1;
+}
+
+static int xrx200_mdio_wr(struct mii_bus *bus, int addr, int reg, u16 val)
+{
+	if (xrx200_mdio_poll(bus))
+		return 1;
+
+	ltq_mdio_w32(val, MDIO_WRITE);
+	ltq_mdio_w32(MDIO_BUSY | MDIO_WR |
+		((addr & MDIO_MASK) << MDIO_ADDRSHIFT) |
+		(reg & MDIO_MASK),
+		MDIO_CTRL);
+
+	return 0;
+}
+
+static int xrx200_mdio_rd(struct mii_bus *bus, int addr, int reg)
+{
+	if (xrx200_mdio_poll(bus))
+		return -1;
+
+	ltq_mdio_w32(MDIO_BUSY | MDIO_RD |
+		((addr & MDIO_MASK) << MDIO_ADDRSHIFT) |
+		(reg & MDIO_MASK),
+		MDIO_CTRL);
+
+	if (xrx200_mdio_poll(bus))
+		return -1;
+
+	return ltq_mdio_r32(MDIO_READ);
+}
+
+static int xrx200_mdio_probe(struct net_device *dev, struct xrx200_port *port)
+{
+	struct xrx200_priv *priv = netdev_priv(dev);
+	struct phy_device *phydev = NULL;
+	unsigned val;
+
+	phydev = priv->hw->mii_bus->phy_map[port->phy_addr];
+
+	if (!phydev) {
+		netdev_err(dev, "no PHY found\n");
+		return -ENODEV;
+	}
+
+	phydev = phy_connect(dev, dev_name(&phydev->dev), &xrx200_mdio_link,
+				0, port->phy_if);
+
+	if (IS_ERR(phydev)) {
+		netdev_err(dev, "Could not attach to PHY\n");
+		return PTR_ERR(phydev);
+	}
+
+	phydev->supported &= (SUPPORTED_10baseT_Half
+			| SUPPORTED_10baseT_Full
+			| SUPPORTED_100baseT_Half
+			| SUPPORTED_100baseT_Full
+			| SUPPORTED_1000baseT_Half
+			| SUPPORTED_1000baseT_Full
+			| SUPPORTED_Autoneg
+			| SUPPORTED_MII
+			| SUPPORTED_TP);
+	phydev->advertising = phydev->supported;
+	port->phydev = phydev;
+
+	pr_info("%s: attached PHY [%s] (phy_addr=%s, irq=%d)\n",
+		dev->name, phydev->drv->name,
+		dev_name(&phydev->dev), phydev->irq);
+
+#ifdef SW_POLLING
+	phy_read_status(phydev);
+
+	val = xrx200_mdio_rd(priv->hw->mii_bus, MDIO_DEVAD_NONE, MII_CTRL1000);
+	val |= ADVERTIZE_MPD;
+	xrx200_mdio_wr(priv->hw->mii_bus, MDIO_DEVAD_NONE, MII_CTRL1000, val);
+	xrx200_mdio_wr(priv->hw->mii_bus, 0, 0, 0x1040);
+
+	phy_start_aneg(phydev);
+#endif
+	return 0;
+}
+
+static void xrx200_port_config(struct xrx200_priv *priv,
+		const struct xrx200_port *port)
+{
+	u16 miimode = 0;
+
+	switch (port->num) {
+	case 0: /* xMII0 */
+	case 1: /* xMII1 */
+		switch (port->phy_if) {
+		case PHY_INTERFACE_MODE_MII:
+			if (port->flags & XRX200_PORT_TYPE_PHY)
+				/* MII MAC mode, connected to external PHY */
+				miimode = MII_CFG_MODE_MIIM;
+			else
+				/* MII PHY mode, connected to external MAC */
+				miimode = MII_CFG_MODE_MIIP;
+			break;
+		case PHY_INTERFACE_MODE_RMII:
+			if (port->flags & XRX200_PORT_TYPE_PHY)
+				/* RMII MAC mode, connected to external PHY */
+				miimode = MII_CFG_MODE_RMIIM;
+			else
+				/* RMII PHY mode, connected to external MAC */
+				miimode = MII_CFG_MODE_RMIIP;
+			break;
+		case PHY_INTERFACE_MODE_RGMII:
+			/* RGMII MAC mode, connected to external PHY */
+			miimode = MII_CFG_MODE_RGMII;
+			break;
+		default:
+			break;
+		}
+		break;
+	case 2: /* internal GPHY0 */
+	case 3: /* internal GPHY0 */
+	case 4: /* internal GPHY1 */
+		switch (port->phy_if) {
+			case PHY_INTERFACE_MODE_MII:
+			case PHY_INTERFACE_MODE_GMII:
+				/* MII MAC mode, connected to internal GPHY */
+				miimode = MII_CFG_MODE_MIIM;
+				break;
+			default:
+				break;
+		}
+		break;
+	case 5: /* internal GPHY1 or xMII2 */
+		switch (port->phy_if) {
+		case PHY_INTERFACE_MODE_MII:
+			/* MII MAC mode, connected to internal GPHY */
+			miimode = MII_CFG_MODE_MIIM;
+			break;
+		case PHY_INTERFACE_MODE_RGMII:
+			/* RGMII MAC mode, connected to external PHY */
+			miimode = MII_CFG_MODE_RGMII;
+			break;
+		default:
+			break;
+		}
+		break;
+	default:
+		break;
+	}
+
+	ltq_mii_w32_mask(MII_CFG_MODE_MASK, miimode | MII_CFG_EN,
+		MII_CFG(port->num));
+}
+
+static int xrx200_init(struct net_device *dev)
+{
+	struct xrx200_priv *priv = netdev_priv(dev);
+	struct sockaddr mac;
+	int err, i;
+
+#ifndef SW_POLLING
+	unsigned int reg = 0;
+
+	/* enable auto polling */
+	for (i = 0; i < priv->num_port; i++)
+		reg |= BIT(priv->port[i].num);
+	ltq_mdio_w32(reg, MDIO_CLK_CFG0);
+	ltq_mdio_w32(MDIO1_25MHZ, MDIO_CLK_CFG1);
+#endif
+
+	/* setup each port */
+	for (i = 0; i < priv->num_port; i++)
+		xrx200_port_config(priv, &priv->port[i]);
+
+	memcpy(&mac.sa_data, priv->mac, ETH_ALEN);
+	if (!is_valid_ether_addr(mac.sa_data)) {
+		pr_warn("net-xrx200: invalid MAC, using random\n");
+		eth_random_addr(mac.sa_data);
+		dev->addr_assign_type |= NET_ADDR_RANDOM;
+	}
+
+	err = eth_mac_addr(dev, &mac);
+	if (err)
+		goto err_netdev;
+
+	for (i = 0; i < priv->num_port; i++)
+		if (xrx200_mdio_probe(dev, &priv->port[i]))
+			pr_warn("xrx200-mdio: probing phy of port %d failed\n",
+					 priv->port[i].num);
+
+	return 0;
+
+err_netdev:
+	unregister_netdev(dev);
+	free_netdev(dev);
+	return err;
+}
+
+static void xrx200_pci_microcode(void)
+{
+	int i;
+
+	ltq_switch_w32_mask(PCE_TBL_CFG_ADDR_MASK | PCE_TBL_CFG_ADWR_MASK,
+		PCE_TBL_CFG_ADWR, PCE_TBL_CTRL);
+	ltq_switch_w32(0, PCE_TBL_MASK);
+
+	for (i = 0; i < ARRAY_SIZE(pce_microcode); i++) {
+		ltq_switch_w32(i, PCE_TBL_ADDR);
+		ltq_switch_w32(pce_microcode[i].val[3], PCE_TBL_VAL(0));
+		ltq_switch_w32(pce_microcode[i].val[2], PCE_TBL_VAL(1));
+		ltq_switch_w32(pce_microcode[i].val[1], PCE_TBL_VAL(2));
+		ltq_switch_w32(pce_microcode[i].val[0], PCE_TBL_VAL(3));
+
+		// start the table access:
+		ltq_switch_w32_mask(0, PCE_TBL_BUSY, PCE_TBL_CTRL);
+		while (ltq_switch_r32(PCE_TBL_CTRL) & PCE_TBL_BUSY);
+	}
+
+	/* tell the switch that the microcode is loaded */
+	ltq_switch_w32_mask(0, BIT(3), PCE_GCTRL_REG(0));
+}
+
+static void xrx200_hw_init(struct xrx200_hw *hw)
+{
+	int i;
+
+	/* enable clock gate */
+	clk_enable(hw->clk);
+
+	ltq_switch_w32(1, 0);
+	mdelay(100);
+	ltq_switch_w32(0, 0);
+	/*
+	 * TODO: we should really disbale all phys/miis here and explicitly
+	 * enable them in the device secific init function
+	 */
+
+	/* disable port fetch/store dma */
+	for (i = 0; i < 7; i++ ) {
+		ltq_switch_w32(0, FDMA_PCTRLx(i));
+		ltq_switch_w32(0, SDMA_PCTRLx(i));
+	}
+
+	/* enable Switch */
+	ltq_mdio_w32_mask(0, MDIO_GLOB_ENABLE, MDIO_GLOB);
+
+	/* load the pce microcode */
+	xrx200_pci_microcode();
+
+	/* Default unknown Broadcat/Multicast/Unicast port maps */
+	ltq_switch_w32(0x7f, PCE_PMAP1);
+	ltq_switch_w32(0x7f, PCE_PMAP2);
+	ltq_switch_w32(0x7f, PCE_PMAP3);
+
+	/* RMON Counter Enable for all physical ports */
+	for (i = 0; i < 7; i++)
+		ltq_switch_w32(0x1, BM_PCFG(i));
+
+	/* disable auto polling */
+	ltq_mdio_w32(0x0, MDIO_CLK_CFG0);
+
+	/* enable port statistic counters */
+	for (i = 0; i < 7; i++)
+		ltq_switch_w32(0x1, BM_PCFGx(i));
+
+	/* set IPG to 12 */
+	ltq_pmac_w32_mask(PMAC_IPG_MASK, 0xb, PMAC_RX_IPG);
+
+#ifdef SW_ROUTING
+	/* enable status header, enable CRC */
+	ltq_pmac_w32_mask(0,
+		PMAC_HD_CTL_RST | PMAC_HD_CTL_AST | PMAC_HD_CTL_RXSH | PMAC_HD_CTL_AS | PMAC_HD_CTL_AC,
+		PMAC_HD_CTL);
+#else
+	/* disable status header, enable CRC */
+	ltq_pmac_w32_mask(PMAC_HD_CTL_AST | PMAC_HD_CTL_RXSH | PMAC_HD_CTL_AS,
+		PMAC_HD_CTL_AC,
+		PMAC_HD_CTL);
+#endif
+
+	/* enable port fetch/store dma */
+	for (i = 0; i < 7; i++ ) {
+		ltq_switch_w32_mask(0, 0x01, FDMA_PCTRLx(i));
+		ltq_switch_w32_mask(0, 0x01, SDMA_PCTRLx(i));
+		ltq_switch_w32_mask(0, PCE_INGRESS, PCE_PCTRL_REG(i, 0));
+	}
+
+	/* enable special tag insertion on cpu port */
+	ltq_switch_w32_mask(0, 0x02, FDMA_PCTRLx(6));
+	ltq_switch_w32_mask(0, PCE_INGRESS, PCE_PCTRL_REG(6, 0));
+	ltq_switch_w32_mask(0, BIT(3), MAC_CTRL_REG(6, 2));
+	ltq_switch_w32(1518 + 8 + 4 * 2, MAC_FLEN_REG);
+}
+
+static void xrx200_hw_cleanup(struct xrx200_hw *hw)
+{
+	int i;
+
+	/* disable the switch */
+	ltq_mdio_w32_mask(MDIO_GLOB_ENABLE, 0, MDIO_GLOB);
+
+	/* free the channels and IRQs */
+	for (i = 0; i < 2; i++) {
+		ltq_dma_free(&hw->chan[i].dma);
+		if (hw->chan[i].dma.irq)
+			free_irq(hw->chan[i].dma.irq, hw);
+	}
+
+	/* free the allocated RX ring */
+	for (i = 0; i < LTQ_DESC_NUM; i++)
+		dev_kfree_skb_any(hw->chan[XRX200_DMA_RX].skb[i]);
+
+	/* clear the mdio bus */
+	mdiobus_unregister(hw->mii_bus);
+	mdiobus_free(hw->mii_bus);
+
+	/* release the clock */
+	clk_disable(hw->clk);
+	clk_put(hw->clk);
+}
+
+static int xrx200_of_mdio(struct xrx200_hw *hw, struct device_node *np)
+{
+	int i;
+	hw->mii_bus = mdiobus_alloc();
+	if (!hw->mii_bus)
+		return -ENOMEM;
+
+	hw->mii_bus->read = xrx200_mdio_rd;
+	hw->mii_bus->write = xrx200_mdio_wr;
+	hw->mii_bus->name = "lantiq,xrx200-mdio";
+	snprintf(hw->mii_bus->id, MII_BUS_ID_SIZE, "%x", 0);
+
+	if (of_mdiobus_register(hw->mii_bus, np)) {
+		mdiobus_free(hw->mii_bus);
+		return -ENXIO;
+	}
+
+	return 0;
+}
+
+static void xrx200_of_port(struct xrx200_priv *priv, struct device_node *port)
+{
+	const __be32 *addr, *id = of_get_property(port, "reg", NULL);
+	struct xrx200_port *p = &priv->port[priv->num_port];
+
+	if (!id)
+		return;
+
+	memset(p, 0, sizeof(struct xrx200_port));
+	p->phy_node = of_parse_phandle(port, "phy-handle", 0);
+	addr = of_get_property(p->phy_node, "reg", NULL);
+	if (!addr)
+		return;
+
+	p->num = *id;
+	p->phy_addr = *addr;
+	p->phy_if = of_get_phy_mode(port);
+	if (p->phy_addr > 0x10)
+		p->flags = XRX200_PORT_TYPE_MAC;
+	else
+		p->flags = XRX200_PORT_TYPE_PHY;
+	priv->num_port++;
+
+	p->gpio = of_get_gpio_flags(port, 0, &p->gpio_flags);
+	if (gpio_is_valid(p->gpio))
+		if (!gpio_request(p->gpio, "phy-reset")) {
+			gpio_direction_output(p->gpio,
+				(p->gpio_flags & OF_GPIO_ACTIVE_LOW) ? (1) : (0));
+			udelay(100);
+			gpio_set_value(p->gpio, (p->gpio_flags & OF_GPIO_ACTIVE_LOW) ? (0) : (1));
+		}
+	/* is this port a wan port ? */
+	if (priv->wan)
+		priv->hw->wan_map |= BIT(p->num);
+
+	priv->port_map |= BIT(p->num);
+
+	/* store the port id in the hw struct so we can map ports -> devices */
+	priv->hw->port_map[p->num] = priv->hw->num_devs;
+}
+
+static const struct net_device_ops xrx200_netdev_ops = {
+	.ndo_init		= xrx200_init,
+	.ndo_open		= xrx200_open,
+	.ndo_stop		= xrx200_close,
+	.ndo_start_xmit		= xrx200_start_xmit,
+	.ndo_set_mac_address	= eth_mac_addr,
+	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_change_mtu		= eth_change_mtu,
+	.ndo_get_stats		= xrx200_get_stats,
+	.ndo_tx_timeout		= xrx200_tx_timeout,
+};
+
+static void xrx200_of_iface(struct xrx200_hw *hw, struct device_node *iface)
+{
+	struct xrx200_priv *priv;
+	struct device_node *port;
+	const __be32 *wan;
+
+	/* alloc the network device */
+	hw->devs[hw->num_devs] = alloc_etherdev(sizeof(struct xrx200_priv));
+	if (!hw->devs[hw->num_devs])
+		return;
+
+	/* setup the network device */
+	strcpy(hw->devs[hw->num_devs]->name, "eth%d");
+	hw->devs[hw->num_devs]->netdev_ops = &xrx200_netdev_ops;
+	hw->devs[hw->num_devs]->watchdog_timeo = XRX200_TX_TIMEOUT;
+	hw->devs[hw->num_devs]->needed_headroom = XRX200_HEADROOM;
+
+	/* setup our private data */
+	priv = netdev_priv(hw->devs[hw->num_devs]);
+	priv->hw = hw;
+	priv->mac = of_get_mac_address(iface);
+	priv->id = hw->num_devs;
+
+	/* is this the wan interface ? */
+	wan = of_get_property(iface, "lantiq,wan", NULL);
+	if (wan && (*wan == 1))
+		priv->wan = 1;
+
+	/* load the ports that are part of the interface */
+	for_each_child_of_node(iface, port)
+		if (of_device_is_compatible(port, "lantiq,xrx200-pdi-port"))
+			xrx200_of_port(priv, port);
+
+	/* register the actual device */
+	if (!register_netdev(hw->devs[hw->num_devs]))
+		hw->num_devs++;
+}
+
+static struct xrx200_hw xrx200_hw;
+
+static int xrx200_probe(struct platform_device *pdev)
+{
+	struct resource *res[4];
+	struct device_node *mdio_np, *iface_np;
+	int i;
+
+	/* load the memory ranges */
+	for (i = 0; i < 4; i++) {
+		res[i] = platform_get_resource(pdev, IORESOURCE_MEM, i);
+		if (!res[i]) {
+			dev_err(&pdev->dev, "failed to get resources\n");
+			return -ENOENT;
+		}
+	}
+	xrx200_switch_membase = devm_request_and_ioremap(&pdev->dev, res[0]);
+	xrx200_mdio_membase = devm_request_and_ioremap(&pdev->dev, res[1]);
+	xrx200_mii_membase = devm_request_and_ioremap(&pdev->dev, res[2]);
+	xrx200_pmac_membase = devm_request_and_ioremap(&pdev->dev, res[3]);
+	if (!xrx200_switch_membase || !xrx200_mdio_membase ||
+			!xrx200_mii_membase || !xrx200_pmac_membase) {
+		dev_err(&pdev->dev, "failed to request and remap io ranges \n");
+		return -ENOMEM;
+	}
+
+	/* get the clock */
+	xrx200_hw.clk = clk_get(&pdev->dev, NULL);
+	if (IS_ERR(xrx200_hw.clk)) {
+		dev_err(&pdev->dev, "failed to get clock\n");
+		return PTR_ERR(xrx200_hw.clk);
+	}
+
+	/* bring up the dma engine and IP core */
+	spin_lock_init(&xrx200_hw.lock);
+	xrx200_dma_init(&xrx200_hw);
+	xrx200_hw_init(&xrx200_hw);
+
+	/* bring up the mdio bus */
+	mdio_np = of_find_compatible_node(pdev->dev.of_node, NULL,
+				"lantiq,xrx200-mdio");
+	if (mdio_np)
+		if (xrx200_of_mdio(&xrx200_hw, mdio_np))
+			dev_err(&pdev->dev, "mdio probe failed\n");
+
+	/* load the interfaces */
+	for_each_child_of_node(pdev->dev.of_node, iface_np)
+		if (of_device_is_compatible(iface_np, "lantiq,xrx200-pdi")) {
+			if (xrx200_hw.num_devs < XRX200_MAX_DEV)
+				xrx200_of_iface(&xrx200_hw, iface_np);
+			else
+				dev_err(&pdev->dev,
+					"only %d interfaces allowed\n",
+					XRX200_MAX_DEV);
+		}
+
+	if (!xrx200_hw.num_devs) {
+		xrx200_hw_cleanup(&xrx200_hw);
+		dev_err(&pdev->dev, "failed to load interfaces\n");
+		return -ENOENT;
+	}
+
+	/* set wan port mask */
+	ltq_pmac_w32(xrx200_hw.wan_map, PMAC_EWAN);
+
+	for (i = 0; i < xrx200_hw.num_devs; i++) {
+		xrx200_hw.chan[XRX200_DMA_RX].devs[i] = xrx200_hw.devs[i];
+		xrx200_hw.chan[XRX200_DMA_TX].devs[i] = xrx200_hw.devs[i];
+	}
+
+	/* setup NAPI */
+	init_dummy_netdev(&xrx200_hw.chan[XRX200_DMA_RX].dummy_dev);
+	init_dummy_netdev(&xrx200_hw.chan[XRX200_DMA_TX].dummy_dev);
+	netif_napi_add(&xrx200_hw.chan[XRX200_DMA_RX].dummy_dev,
+			&xrx200_hw.chan[XRX200_DMA_RX].napi, xrx200_poll_rx, 32);
+	netif_napi_add(&xrx200_hw.chan[XRX200_DMA_TX].dummy_dev,
+			&xrx200_hw.chan[XRX200_DMA_TX].napi, xrx200_poll_tx, 8);
+
+	platform_set_drvdata(pdev, &xrx200_hw);
+
+	return 0;
+}
+
+static int xrx200_remove(struct platform_device *pdev)
+{
+	struct net_device *dev = platform_get_drvdata(pdev);
+	struct xrx200_priv *priv;
+
+	if (!dev)
+		return 0;
+
+	priv = netdev_priv(dev);
+
+	/* free stack related instances */
+	netif_stop_queue(dev);
+	netif_napi_del(&xrx200_hw.chan[XRX200_DMA_RX].napi);
+	netif_napi_del(&xrx200_hw.chan[XRX200_DMA_TX].napi);
+
+	/* shut down hardware */
+	xrx200_hw_cleanup(&xrx200_hw);
+
+	/* remove the actual device */
+	unregister_netdev(dev);
+	free_netdev(dev);
+
+	return 0;
+}
+
+static const struct of_device_id xrx200_match[] = {
+	{ .compatible = "lantiq,xrx200-net" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, xrx200_match);
+
+static struct platform_driver xrx200_driver = {
+	.probe = xrx200_probe,
+	.remove = xrx200_remove,
+	.driver = {
+		.name = "lantiq,xrx200-net",
+		.of_match_table = xrx200_match,
+		.owner = THIS_MODULE,
+	},
+};
+
+module_platform_driver(xrx200_driver);
+
+MODULE_AUTHOR("John Crispin <blogic@openwrt.org>");
+MODULE_DESCRIPTION("Lantiq SoC XRX200 ethernet");
+MODULE_LICENSE("GPL");