treewide: fix replace nbd@openwrt.org with nbd@nbd.name
[openwrt.org/openwrt.git] / target / linux / generic / files / drivers / net / phy / mvsw61xx.c
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
/*
 * Marvell 88E61xx switch driver
 *
 * Copyright (c) 2014 Claudio Leite <leitec@staticky.com>
 * Copyright (c) 2014 Nikita Nazarenko <nnazarenko@radiofid.com>
 *
 * Based on code (c) 2008 Felix Fietkau <nbd@openwrt.org>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License v2 as published by the
 * Free Software Foundation
 */
 
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/list.h>
#include <linux/mii.h>
#include <linux/phy.h>
#include <linux/of.h>
#include <linux/of_mdio.h>
#include <linux/delay.h>
#include <linux/switch.h>
#include <linux/device.h>
#include <linux/platform_device.h>
 
#include "mvsw61xx.h"
 
MODULE_DESCRIPTION("Marvell 88E61xx Switch driver");
MODULE_AUTHOR("Claudio Leite <leitec@staticky.com>");
MODULE_AUTHOR("Nikita Nazarenko <nnazarenko@radiofid.com>");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:mvsw61xx");
 
/*
 * Register access is done through direct or indirect addressing,
 * depending on how the switch is physically connected.
 *
 * Direct addressing: all port and global registers directly
 *   accessible via an address/register pair
 *
 * Indirect addressing: switch is mapped at a single address,
 *   port and global registers accessible via a single command/data
 *   register pair
 */
 
static int
mvsw61xx_wait_mask_raw(struct mii_bus *bus, int addr,
                int reg, u16 mask, u16 val)
{
        int i = 100;
        u16 r;
 
        do {
                r = bus->read(bus, addr, reg);
                if ((r & mask) == val)
                        return 0;
        } while (--i > 0);
 
        return -ETIMEDOUT;
}
 
static u16
r16(struct mii_bus *bus, bool indirect, int base_addr, int addr, int reg)
{
        u16 ind_addr;
 
        if (!indirect)
                return bus->read(bus, addr, reg);
 
        /* Indirect read: First, make sure switch is free */
        mvsw61xx_wait_mask_raw(bus, base_addr, MV_INDIRECT_REG_CMD,
                        MV_INDIRECT_INPROGRESS, 0);
 
        /* Load address and request read */
        ind_addr = MV_INDIRECT_READ | (addr << MV_INDIRECT_ADDR_S) | reg;
        bus->write(bus, base_addr, MV_INDIRECT_REG_CMD,
                        ind_addr);
 
        /* Wait until it's ready */
        mvsw61xx_wait_mask_raw(bus, base_addr, MV_INDIRECT_REG_CMD,
                        MV_INDIRECT_INPROGRESS, 0);
 
        /* Read the requested data */
        return bus->read(bus, base_addr, MV_INDIRECT_REG_DATA);
}
 
static void
w16(struct mii_bus *bus, bool indirect, int base_addr, int addr,
                int reg, u16 val)
{
        u16 ind_addr;
 
        if (!indirect) {
                bus->write(bus, addr, reg, val);
                return;
        }
 
        /* Indirect write: First, make sure switch is free */
        mvsw61xx_wait_mask_raw(bus, base_addr, MV_INDIRECT_REG_CMD,
                        MV_INDIRECT_INPROGRESS, 0);
 
        /* Load the data to be written */
        bus->write(bus, base_addr, MV_INDIRECT_REG_DATA, val);
 
        /* Wait again for switch to be free */
        mvsw61xx_wait_mask_raw(bus, base_addr, MV_INDIRECT_REG_CMD,
                        MV_INDIRECT_INPROGRESS, 0);
 
        /* Load address, and issue write command */
        ind_addr = MV_INDIRECT_WRITE | (addr << MV_INDIRECT_ADDR_S) | reg;
        bus->write(bus, base_addr, MV_INDIRECT_REG_CMD,
                        ind_addr);
}
 
/* swconfig support */
 
static inline u16
sr16(struct switch_dev *dev, int addr, int reg)
{
        struct mvsw61xx_state *state = get_state(dev);
 
        return r16(state->bus, state->is_indirect, state->base_addr, addr, reg);
}
 
static inline void
sw16(struct switch_dev *dev, int addr, int reg, u16 val)
{
        struct mvsw61xx_state *state = get_state(dev);
 
        w16(state->bus, state->is_indirect, state->base_addr, addr, reg, val);
}
 
static int
mvsw61xx_wait_mask_s(struct switch_dev *dev, int addr,
                int reg, u16 mask, u16 val)
{
        int i = 100;
        u16 r;
 
        do {
                r = sr16(dev, addr, reg) & mask;
                if (r == val)
                        return 0;
        } while (--i > 0);
 
        return -ETIMEDOUT;
}
 
static int
mvsw61xx_get_port_mask(struct switch_dev *dev,
                const struct switch_attr *attr, struct switch_val *val)
{
        struct mvsw61xx_state *state = get_state(dev);
        char *buf = state->buf;
        int port, len, i;
        u16 reg;
 
        port = val->port_vlan;
        reg = sr16(dev, MV_PORTREG(VLANMAP, port)) & MV_PORTS_MASK;
 
        len = sprintf(buf, "0x%04x: ", reg);
 
        for (i = 0; i < MV_PORTS; i++) {
                if (reg & (1 << i))
                        len += sprintf(buf + len, "%d ", i);
                else if (i == port)
                        len += sprintf(buf + len, "(%d) ", i);
        }
 
        val->value.s = buf;
 
        return 0;
}
 
static int
mvsw61xx_get_port_qmode(struct switch_dev *dev,
                const struct switch_attr *attr, struct switch_val *val)
{
        struct mvsw61xx_state *state = get_state(dev);
 
        val->value.i = state->ports[val->port_vlan].qmode;
 
        return 0;
}
 
static int
mvsw61xx_set_port_qmode(struct switch_dev *dev,
                const struct switch_attr *attr, struct switch_val *val)
{
        struct mvsw61xx_state *state = get_state(dev);
 
        state->ports[val->port_vlan].qmode = val->value.i;
 
        return 0;
}
 
static int
mvsw61xx_get_port_pvid(struct switch_dev *dev, int port, int *val)
{
        struct mvsw61xx_state *state = get_state(dev);
 
        *val = state->ports[port].pvid;
 
        return 0;
}
 
static int
mvsw61xx_set_port_pvid(struct switch_dev *dev, int port, int val)
{
        struct mvsw61xx_state *state = get_state(dev);
 
        if (val < 0 || val >= MV_VLANS)
                return -EINVAL;
 
        state->ports[port].pvid = (u16)val;
 
        return 0;
}
 
static int
mvsw61xx_get_port_link(struct switch_dev *dev, int port,
                struct switch_port_link *link)
{
        u16 status, speed;
 
        status = sr16(dev, MV_PORTREG(STATUS, port));
 
        link->link = status & MV_PORT_STATUS_LINK;
        if (!link->link)
                return 0;
 
        link->duplex = status & MV_PORT_STATUS_FDX;
 
        speed = (status & MV_PORT_STATUS_SPEED_MASK) >>
                        MV_PORT_STATUS_SPEED_SHIFT;
 
        switch (speed) {
        case MV_PORT_STATUS_SPEED_10:
                link->speed = SWITCH_PORT_SPEED_10;
                break;
        case MV_PORT_STATUS_SPEED_100:
                link->speed = SWITCH_PORT_SPEED_100;
                break;
        case MV_PORT_STATUS_SPEED_1000:
                link->speed = SWITCH_PORT_SPEED_1000;
                break;
        }
 
        return 0;
}
 
static int mvsw61xx_get_vlan_ports(struct switch_dev *dev,
                struct switch_val *val)
{
        struct mvsw61xx_state *state = get_state(dev);
        int i, j, mode, vno;
 
        vno = val->port_vlan;
 
        if (vno <= 0 || vno >= dev->vlans)
                return -EINVAL;
 
        for (i = 0, j = 0; i < dev->ports; i++) {
                if (state->vlans[vno].mask & (1 << i)) {
                        val->value.ports[j].id = i;
 
                        mode = (state->vlans[vno].port_mode >> (i * 4)) & 0xf;
                        if (mode == MV_VTUCTL_EGRESS_TAGGED)
                                val->value.ports[j].flags =
                                        (1 << SWITCH_PORT_FLAG_TAGGED);
                        else
                                val->value.ports[j].flags = 0;
 
                        j++;
                }
        }
 
        val->len = j;
 
        return 0;
}
 
static int mvsw61xx_set_vlan_ports(struct switch_dev *dev,
                struct switch_val *val)
{
        struct mvsw61xx_state *state = get_state(dev);
        int i, mode, pno, vno;
 
        vno = val->port_vlan;
 
        if (vno <= 0 || vno >= dev->vlans)
                return -EINVAL;
 
        state->vlans[vno].mask = 0;
        state->vlans[vno].port_mode = 0;
        state->vlans[vno].port_sstate = 0;
 
        if(state->vlans[vno].vid == 0)
                state->vlans[vno].vid = vno;
 
        for (i = 0; i < val->len; i++) {
                pno = val->value.ports[i].id;
 
                state->vlans[vno].mask |= (1 << pno);
                if (val->value.ports[i].flags &
                                (1 << SWITCH_PORT_FLAG_TAGGED))
                        mode = MV_VTUCTL_EGRESS_TAGGED;
                else
                        mode = MV_VTUCTL_EGRESS_UNTAGGED;
 
                state->vlans[vno].port_mode |= mode << (pno * 4);
                state->vlans[vno].port_sstate |=
                        MV_STUCTL_STATE_FORWARDING << (pno * 4 + 2);
        }
 
        /*
         * DISCARD is nonzero, so it must be explicitly
         * set on ports not in the VLAN.
         */
        for (i = 0; i < dev->ports; i++)
                if (!(state->vlans[vno].mask & (1 << i)))
                        state->vlans[vno].port_mode |=
                                MV_VTUCTL_DISCARD << (i * 4);
 
        return 0;
}
 
static int mvsw61xx_get_vlan_port_based(struct switch_dev *dev,
                const struct switch_attr *attr, struct switch_val *val)
{
        struct mvsw61xx_state *state = get_state(dev);
        int vno = val->port_vlan;
 
        if (vno <= 0 || vno >= dev->vlans)
                return -EINVAL;
 
        if (state->vlans[vno].port_based)
                val->value.i = 1;
        else
                val->value.i = 0;
 
        return 0;
}
 
static int mvsw61xx_set_vlan_port_based(struct switch_dev *dev,
                const struct switch_attr *attr, struct switch_val *val)
{
        struct mvsw61xx_state *state = get_state(dev);
        int vno = val->port_vlan;
 
        if (vno <= 0 || vno >= dev->vlans)
                return -EINVAL;
 
        if (val->value.i == 1)
                state->vlans[vno].port_based = true;
        else
                state->vlans[vno].port_based = false;
 
        return 0;
}
 
static int mvsw61xx_get_vid(struct switch_dev *dev,
                const struct switch_attr *attr, struct switch_val *val)
{
        struct mvsw61xx_state *state = get_state(dev);
        int vno = val->port_vlan;
 
        if (vno <= 0 || vno >= dev->vlans)
                return -EINVAL;
 
        val->value.i = state->vlans[vno].vid;
 
        return 0;
}
 
static int mvsw61xx_set_vid(struct switch_dev *dev,
                const struct switch_attr *attr, struct switch_val *val)
{
        struct mvsw61xx_state *state = get_state(dev);
        int vno = val->port_vlan;
 
        if (vno <= 0 || vno >= dev->vlans)
                return -EINVAL;
 
        state->vlans[vno].vid = val->value.i;
 
        return 0;
}
 
static int mvsw61xx_get_enable_vlan(struct switch_dev *dev,
                const struct switch_attr *attr, struct switch_val *val)
{
        struct mvsw61xx_state *state = get_state(dev);
 
        val->value.i = state->vlan_enabled;
 
        return 0;
}
 
static int mvsw61xx_set_enable_vlan(struct switch_dev *dev,
                const struct switch_attr *attr, struct switch_val *val)
{
        struct mvsw61xx_state *state = get_state(dev);
 
        state->vlan_enabled = val->value.i;
 
        return 0;
}
 
static int mvsw61xx_vtu_program(struct switch_dev *dev)
{
        struct mvsw61xx_state *state = get_state(dev);
        u16 v1, v2, s1, s2;
        int i;
 
        /* Flush */
        mvsw61xx_wait_mask_s(dev, MV_GLOBALREG(VTU_OP),
                        MV_VTUOP_INPROGRESS, 0);
        sw16(dev, MV_GLOBALREG(VTU_OP),
                        MV_VTUOP_INPROGRESS | MV_VTUOP_PURGE);
 
        /* Write VLAN table */
        for (i = 1; i < dev->vlans; i++) {
                if (state->vlans[i].mask == 0 ||
                                state->vlans[i].vid == 0 ||
                                state->vlans[i].port_based == true)
                        continue;
 
                mvsw61xx_wait_mask_s(dev, MV_GLOBALREG(VTU_OP),
                                MV_VTUOP_INPROGRESS, 0);
 
                /* Write per-VLAN port state into STU */
                s1 = (u16) (state->vlans[i].port_sstate & 0xffff);
                s2 = (u16) ((state->vlans[i].port_sstate >> 16) & 0xffff);
 
                sw16(dev, MV_GLOBALREG(VTU_VID), MV_VTU_VID_VALID);
                sw16(dev, MV_GLOBALREG(VTU_SID), i);
                sw16(dev, MV_GLOBALREG(VTU_DATA1), s1);
                sw16(dev, MV_GLOBALREG(VTU_DATA2), s2);
                sw16(dev, MV_GLOBALREG(VTU_DATA3), 0);
 
                sw16(dev, MV_GLOBALREG(VTU_OP),
                                MV_VTUOP_INPROGRESS | MV_VTUOP_STULOAD);
                mvsw61xx_wait_mask_s(dev, MV_GLOBALREG(VTU_OP),
                                MV_VTUOP_INPROGRESS, 0);
 
                /* Write VLAN information into VTU */
                v1 = (u16) (state->vlans[i].port_mode & 0xffff);
                v2 = (u16) ((state->vlans[i].port_mode >> 16) & 0xffff);
 
                sw16(dev, MV_GLOBALREG(VTU_VID),
                                MV_VTU_VID_VALID | state->vlans[i].vid);
                sw16(dev, MV_GLOBALREG(VTU_SID), i);
                sw16(dev, MV_GLOBALREG(VTU_FID), i);
                sw16(dev, MV_GLOBALREG(VTU_DATA1), v1);
                sw16(dev, MV_GLOBALREG(VTU_DATA2), v2);
                sw16(dev, MV_GLOBALREG(VTU_DATA3), 0);
 
                sw16(dev, MV_GLOBALREG(VTU_OP),
                                MV_VTUOP_INPROGRESS | MV_VTUOP_LOAD);
                mvsw61xx_wait_mask_s(dev, MV_GLOBALREG(VTU_OP),
                                MV_VTUOP_INPROGRESS, 0);
        }
 
        return 0;
}
 
static void mvsw61xx_vlan_port_config(struct switch_dev *dev, int vno)
{
        struct mvsw61xx_state *state = get_state(dev);
        int i, mode;
 
        for (i = 0; i < dev->ports; i++) {
                if (!(state->vlans[vno].mask & (1 << i)))
                        continue;
 
                mode = (state->vlans[vno].port_mode >> (i * 4)) & 0xf;
 
                if(mode != MV_VTUCTL_EGRESS_TAGGED)
                        state->ports[i].pvid = state->vlans[vno].vid;
 
                if (state->vlans[vno].port_based) {
                        state->ports[i].mask |= state->vlans[vno].mask;
                        state->ports[i].fdb = vno;
                }
                else
                        state->ports[i].qmode = MV_8021Q_MODE_SECURE;
        }
}
 
static int mvsw61xx_update_state(struct switch_dev *dev)
{
        struct mvsw61xx_state *state = get_state(dev);
        int i;
        u16 reg;
 
        if (!state->registered)
                return -EINVAL;
 
        /*
         * Set 802.1q-only mode if vlan_enabled is true.
         *
         * Without this, even if 802.1q is enabled for
         * a port/VLAN, it still depends on the port-based
         * VLAN mask being set.
         *
         * With this setting, port-based VLANs are still
         * functional, provided the VID is not in the VTU.
         */
        reg = sr16(dev, MV_GLOBAL2REG(SDET_POLARITY));
 
        if (state->vlan_enabled)
                reg |= MV_8021Q_VLAN_ONLY;
        else
                reg &= ~MV_8021Q_VLAN_ONLY;
 
        sw16(dev, MV_GLOBAL2REG(SDET_POLARITY), reg);
 
        /*
         * Set port-based VLAN masks on each port
         * based only on VLAN definitions known to
         * the driver (i.e. in state).
         *
         * This means any pre-existing port mapping is
         * wiped out once our driver is initialized.
         */
        for (i = 0; i < dev->ports; i++) {
                state->ports[i].mask = 0;
                state->ports[i].qmode = MV_8021Q_MODE_DISABLE;
        }
 
        for (i = 0; i < dev->vlans; i++)
                mvsw61xx_vlan_port_config(dev, i);
 
        for (i = 0; i < dev->ports; i++) {
                reg = sr16(dev, MV_PORTREG(VLANID, i)) & ~MV_PVID_MASK;
                reg |= state->ports[i].pvid;
                sw16(dev, MV_PORTREG(VLANID, i), reg);
 
                state->ports[i].mask &= ~(1 << i);
 
                /* set default forwarding DB number and port mask */
                reg = sr16(dev, MV_PORTREG(CONTROL1, i)) & ~MV_FDB_HI_MASK;
                reg |= (state->ports[i].fdb >> MV_FDB_HI_SHIFT) &
                        MV_FDB_HI_MASK;
                sw16(dev, MV_PORTREG(CONTROL1, i), reg);
 
                reg = ((state->ports[i].fdb & 0xf) << MV_FDB_LO_SHIFT) |
                        state->ports[i].mask;
                sw16(dev, MV_PORTREG(VLANMAP, i), reg);
 
                reg = sr16(dev, MV_PORTREG(CONTROL2, i)) &
                        ~MV_8021Q_MODE_MASK;
                reg |= state->ports[i].qmode << MV_8021Q_MODE_SHIFT;
                sw16(dev, MV_PORTREG(CONTROL2, i), reg);
        }
 
        mvsw61xx_vtu_program(dev);
 
        return 0;
}
 
static int mvsw61xx_apply(struct switch_dev *dev)
{
        return mvsw61xx_update_state(dev);
}
 
static int mvsw61xx_reset(struct switch_dev *dev)
{
        struct mvsw61xx_state *state = get_state(dev);
        int i;
        u16 reg;
 
        /* Disable all ports before reset */
        for (i = 0; i < dev->ports; i++) {
                reg = sr16(dev, MV_PORTREG(CONTROL, i)) &
                        ~MV_PORTCTRL_FORWARDING;
                sw16(dev, MV_PORTREG(CONTROL, i), reg);
        }
 
        reg = sr16(dev, MV_GLOBALREG(CONTROL)) | MV_CONTROL_RESET;
 
        sw16(dev, MV_GLOBALREG(CONTROL), reg);
        if (mvsw61xx_wait_mask_s(dev, MV_GLOBALREG(CONTROL),
                                MV_CONTROL_RESET, 0) < 0)
                return -ETIMEDOUT;
 
        for (i = 0; i < dev->ports; i++) {
                state->ports[i].fdb = 0;
                state->ports[i].qmode = 0;
                state->ports[i].mask = 0;
                state->ports[i].pvid = 0;
 
                /* Force flow control off */
                reg = sr16(dev, MV_PORTREG(PHYCTL, i)) & ~MV_PHYCTL_FC_MASK;
                reg |= MV_PHYCTL_FC_DISABLE;
                sw16(dev, MV_PORTREG(PHYCTL, i), reg);
 
                /* Set port association vector */
                sw16(dev, MV_PORTREG(ASSOC, i), (1 << i));
        }
 
        for (i = 0; i < dev->vlans; i++) {
                state->vlans[i].port_based = false;
                state->vlans[i].mask = 0;
                state->vlans[i].vid = 0;
                state->vlans[i].port_mode = 0;
                state->vlans[i].port_sstate = 0;
        }
 
        state->vlan_enabled = 0;
 
        mvsw61xx_update_state(dev);
 
        /* Re-enable ports */
        for (i = 0; i < dev->ports; i++) {
                reg = sr16(dev, MV_PORTREG(CONTROL, i)) |
                        MV_PORTCTRL_FORWARDING;
                sw16(dev, MV_PORTREG(CONTROL, i), reg);
        }
 
        return 0;
}
 
enum {
        MVSW61XX_ENABLE_VLAN,
};
 
enum {
        MVSW61XX_VLAN_PORT_BASED,
        MVSW61XX_VLAN_ID,
};
 
enum {
        MVSW61XX_PORT_MASK,
        MVSW61XX_PORT_QMODE,
};
 
static const struct switch_attr mvsw61xx_global[] = {
        [MVSW61XX_ENABLE_VLAN] = {
                .id = MVSW61XX_ENABLE_VLAN,
                .type = SWITCH_TYPE_INT,
                .name = "enable_vlan",
                .description = "Enable 802.1q VLAN support",
                .get = mvsw61xx_get_enable_vlan,
                .set = mvsw61xx_set_enable_vlan,
        },
};
 
static const struct switch_attr mvsw61xx_vlan[] = {
        [MVSW61XX_VLAN_PORT_BASED] = {
                .id = MVSW61XX_VLAN_PORT_BASED,
                .type = SWITCH_TYPE_INT,
                .name = "port_based",
                .description = "Use port-based (non-802.1q) VLAN only",
                .get = mvsw61xx_get_vlan_port_based,
                .set = mvsw61xx_set_vlan_port_based,
        },
        [MVSW61XX_VLAN_ID] = {
                .id = MVSW61XX_VLAN_ID,
                .type = SWITCH_TYPE_INT,
                .name = "vid",
                .description = "Get/set VLAN ID",
                .get = mvsw61xx_get_vid,
                .set = mvsw61xx_set_vid,
        },
};
 
static const struct switch_attr mvsw61xx_port[] = {
        [MVSW61XX_PORT_MASK] = {
                .id = MVSW61XX_PORT_MASK,
                .type = SWITCH_TYPE_STRING,
                .description = "Port-based VLAN mask",
                .name = "mask",
                .get = mvsw61xx_get_port_mask,
                .set = NULL,
        },
        [MVSW61XX_PORT_QMODE] = {
                .id = MVSW61XX_PORT_QMODE,
                .type = SWITCH_TYPE_INT,
                .description = "802.1q mode: 0=off/1=fallback/2=check/3=secure",
                .name = "qmode",
                .get = mvsw61xx_get_port_qmode,
                .set = mvsw61xx_set_port_qmode,
        },
};
 
static const struct switch_dev_ops mvsw61xx_ops = {
        .attr_global = {
                .attr = mvsw61xx_global,
                .n_attr = ARRAY_SIZE(mvsw61xx_global),
        },
        .attr_vlan = {
                .attr = mvsw61xx_vlan,
                .n_attr = ARRAY_SIZE(mvsw61xx_vlan),
        },
        .attr_port = {
                .attr = mvsw61xx_port,
                .n_attr = ARRAY_SIZE(mvsw61xx_port),
        },
        .get_port_link = mvsw61xx_get_port_link,
        .get_port_pvid = mvsw61xx_get_port_pvid,
        .set_port_pvid = mvsw61xx_set_port_pvid,
        .get_vlan_ports = mvsw61xx_get_vlan_ports,
        .set_vlan_ports = mvsw61xx_set_vlan_ports,
        .apply_config = mvsw61xx_apply,
        .reset_switch = mvsw61xx_reset,
};
 
/* end swconfig stuff */
 
static int mvsw61xx_probe(struct platform_device *pdev)
{
        struct mvsw61xx_state *state;
        struct device_node *np = pdev->dev.of_node;
        struct device_node *mdio;
        char *model_str;
        u32 val;
        int err;
 
        state = kzalloc(sizeof(*state), GFP_KERNEL);
        if (!state)
                return -ENOMEM;
 
        mdio = of_parse_phandle(np, "mii-bus", 0);
        if (!mdio) {
                dev_err(&pdev->dev, "Couldn't get MII bus handle\n");
                err = -ENODEV;
                goto out_err;
        }
 
        state->bus = of_mdio_find_bus(mdio);
        if (!state->bus) {
                dev_err(&pdev->dev, "Couldn't find MII bus from handle\n");
                err = -ENODEV;
                goto out_err;
        }
 
        state->is_indirect = of_property_read_bool(np, "is-indirect");
 
        if (state->is_indirect) {
                if (of_property_read_u32(np, "reg", &val)) {
                        dev_err(&pdev->dev, "Switch address not specified\n");
                        err = -ENODEV;
                        goto out_err;
                }
 
                state->base_addr = val;
        } else {
                state->base_addr = MV_BASE;
        }
 
        state->model = r16(state->bus, state->is_indirect, state->base_addr,
                                MV_PORTREG(IDENT, 0)) & MV_IDENT_MASK;
 
        switch(state->model) {
        case MV_IDENT_VALUE_6171:
                model_str = MV_IDENT_STR_6171;
                break;
        case MV_IDENT_VALUE_6172:
                model_str = MV_IDENT_STR_6172;
                break;
        case MV_IDENT_VALUE_6176:
                model_str = MV_IDENT_STR_6176;
                break;
        default:
                dev_err(&pdev->dev, "No compatible switch found at 0x%02x\n",
                                state->base_addr);
                err = -ENODEV;
                goto out_err;
        }
 
        platform_set_drvdata(pdev, state);
        dev_info(&pdev->dev, "Found %s at %s:%02x\n", model_str,
                        state->bus->id, state->base_addr);
 
        dev_info(&pdev->dev, "Using %sdirect addressing\n",
                        (state->is_indirect ? "in" : ""));
 
        if (of_property_read_u32(np, "cpu-port-0", &val)) {
                dev_err(&pdev->dev, "CPU port not set\n");
                err = -ENODEV;
                goto out_err;
        }
 
        state->cpu_port0 = val;
 
        if (!of_property_read_u32(np, "cpu-port-1", &val))
                state->cpu_port1 = val;
        else
                state->cpu_port1 = -1;
 
        state->dev.vlans = MV_VLANS;
        state->dev.cpu_port = state->cpu_port0;
        state->dev.ports = MV_PORTS;
        state->dev.name = model_str;
        state->dev.ops = &mvsw61xx_ops;
        state->dev.alias = dev_name(&pdev->dev);
 
        err = register_switch(&state->dev, NULL);
        if (err < 0)
                goto out_err;
 
        state->registered = true;
 
        return 0;
out_err:
        kfree(state);
        return err;
}
 
static int
mvsw61xx_remove(struct platform_device *pdev)
{
        struct mvsw61xx_state *state = platform_get_drvdata(pdev);
 
        if (state->registered)
                unregister_switch(&state->dev);
 
        kfree(state);
 
        return 0;
}
 
static const struct of_device_id mvsw61xx_match[] = {
        { .compatible = "marvell,88e6171" },
        { .compatible = "marvell,88e6172" },
        { .compatible = "marvell,88e6176" },
        { }
};
MODULE_DEVICE_TABLE(of, mvsw61xx_match);
 
static struct platform_driver mvsw61xx_driver = {
        .probe = mvsw61xx_probe,
        .remove = mvsw61xx_remove,
        .driver = {
                .name = "mvsw61xx",
                .of_match_table = of_match_ptr(mvsw61xx_match),
                .owner = THIS_MODULE,
        },
};
 
static int __init mvsw61xx_module_init(void)
{
        return platform_driver_register(&mvsw61xx_driver);
}
late_initcall(mvsw61xx_module_init);
 
static void __exit mvsw61xx_module_exit(void)
{
        platform_driver_unregister(&mvsw61xx_driver);
}
module_exit(mvsw61xx_module_exit);
 
comments