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
|
/*
* Marvell 88E6xxx Switch Port Registers support
*
* Copyright (c) 2008 Marvell Semiconductor
*
* Copyright (c) 2016 Vivien Didelot <vivien.didelot@savoirfairelinux.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include "mv88e6xxx.h"
#include "port.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_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 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, PORT_PCS_CTRL, ®);
if (err)
return err;
reg &= ~(PORT_PCS_CTRL_RGMII_DELAY_RXCLK |
PORT_PCS_CTRL_RGMII_DELAY_TXCLK);
switch (mode) {
case PHY_INTERFACE_MODE_RGMII_RXID:
reg |= PORT_PCS_CTRL_RGMII_DELAY_RXCLK;
break;
case PHY_INTERFACE_MODE_RGMII_TXID:
reg |= PORT_PCS_CTRL_RGMII_DELAY_TXCLK;
break;
case PHY_INTERFACE_MODE_RGMII_ID:
reg |= PORT_PCS_CTRL_RGMII_DELAY_RXCLK |
PORT_PCS_CTRL_RGMII_DELAY_TXCLK;
break;
case PHY_INTERFACE_MODE_RGMII:
break;
default:
return 0;
}
err = mv88e6xxx_port_write(chip, port, PORT_PCS_CTRL, reg);
if (err)
return err;
netdev_dbg(chip->ds->ports[port].netdev, "delay RXCLK %s, TXCLK %s\n",
reg & PORT_PCS_CTRL_RGMII_DELAY_RXCLK ? "yes" : "no",
reg & PORT_PCS_CTRL_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, PORT_PCS_CTRL, ®);
if (err)
return err;
reg &= ~(PORT_PCS_CTRL_FORCE_LINK | PORT_PCS_CTRL_LINK_UP);
switch (link) {
case LINK_FORCED_DOWN:
reg |= PORT_PCS_CTRL_FORCE_LINK;
break;
case LINK_FORCED_UP:
reg |= PORT_PCS_CTRL_FORCE_LINK | PORT_PCS_CTRL_LINK_UP;
break;
case LINK_UNFORCED:
/* normal link detection */
break;
default:
return -EINVAL;
}
err = mv88e6xxx_port_write(chip, port, PORT_PCS_CTRL, reg);
if (err)
return err;
netdev_dbg(chip->ds->ports[port].netdev, "%s link %s\n",
reg & PORT_PCS_CTRL_FORCE_LINK ? "Force" : "Unforce",
reg & PORT_PCS_CTRL_LINK_UP ? "up" : "down");
return 0;
}
int mv88e6xxx_port_set_duplex(struct mv88e6xxx_chip *chip, int port, int dup)
{
u16 reg;
int err;
err = mv88e6xxx_port_read(chip, port, PORT_PCS_CTRL, ®);
if (err)
return err;
reg &= ~(PORT_PCS_CTRL_FORCE_DUPLEX | PORT_PCS_CTRL_DUPLEX_FULL);
switch (dup) {
case DUPLEX_HALF:
reg |= PORT_PCS_CTRL_FORCE_DUPLEX;
break;
case DUPLEX_FULL:
reg |= PORT_PCS_CTRL_FORCE_DUPLEX | PORT_PCS_CTRL_DUPLEX_FULL;
break;
case DUPLEX_UNFORCED:
/* normal duplex detection */
break;
default:
return -EINVAL;
}
err = mv88e6xxx_port_write(chip, port, PORT_PCS_CTRL, reg);
if (err)
return err;
netdev_dbg(chip->ds->ports[port].netdev, "%s %s duplex\n",
reg & PORT_PCS_CTRL_FORCE_DUPLEX ? "Force" : "Unforce",
reg & PORT_PCS_CTRL_DUPLEX_FULL ? "full" : "half");
return 0;
}
static int mv88e6xxx_port_set_speed(struct mv88e6xxx_chip *chip, int port,
int speed, bool alt_bit, bool force_bit)
{
u16 reg, ctrl;
int err;
switch (speed) {
case 10:
ctrl = PORT_PCS_CTRL_SPEED_10;
break;
case 100:
ctrl = PORT_PCS_CTRL_SPEED_100;
break;
case 200:
if (alt_bit)
ctrl = PORT_PCS_CTRL_SPEED_100 | PORT_PCS_CTRL_ALTSPEED;
else
ctrl = PORT_PCS_CTRL_SPEED_200;
break;
case 1000:
ctrl = PORT_PCS_CTRL_SPEED_1000;
break;
case 2500:
ctrl = PORT_PCS_CTRL_SPEED_1000 | PORT_PCS_CTRL_ALTSPEED;
break;
case 10000:
/* all bits set, fall through... */
case SPEED_UNFORCED:
ctrl = PORT_PCS_CTRL_SPEED_UNFORCED;
break;
default:
return -EOPNOTSUPP;
}
err = mv88e6xxx_port_read(chip, port, PORT_PCS_CTRL, ®);
if (err)
return err;
reg &= ~PORT_PCS_CTRL_SPEED_MASK;
if (alt_bit)
reg &= ~PORT_PCS_CTRL_ALTSPEED;
if (force_bit) {
reg &= ~PORT_PCS_CTRL_FORCE_SPEED;
if (speed != SPEED_UNFORCED)
ctrl |= PORT_PCS_CTRL_FORCE_SPEED;
}
reg |= ctrl;
err = mv88e6xxx_port_write(chip, port, PORT_PCS_CTRL, reg);
if (err)
return err;
if (speed)
netdev_dbg(chip->ds->ports[port].netdev,
"Speed set to %d Mbps\n", speed);
else
netdev_dbg(chip->ds->ports[port].netdev, "Speed unforced\n");
return 0;
}
/* Support 10, 100, 200 Mbps (e.g. 88E6065 family) */
int mv88e6065_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed)
{
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(chip, port, speed, false, false);
}
/* Support 10, 100, 1000 Mbps (e.g. 88E6185 family) */
int mv88e6185_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed)
{
if (speed == SPEED_MAX)
speed = 1000;
if (speed == 200 || speed > 1000)
return -EOPNOTSUPP;
return mv88e6xxx_port_set_speed(chip, port, speed, false, false);
}
/* Support 10, 100, 200, 1000 Mbps (e.g. 88E6352 family) */
int mv88e6352_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed)
{
if (speed == SPEED_MAX)
speed = 1000;
if (speed > 1000)
return -EOPNOTSUPP;
if (speed == 200 && port < 5)
return -EOPNOTSUPP;
return mv88e6xxx_port_set_speed(chip, port, speed, true, false);
}
/* Support 10, 100, 200, 1000, 2500 Mbps (e.g. 88E6390) */
int mv88e6390_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed)
{
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(chip, port, speed, true, true);
}
/* Support 10, 100, 200, 1000, 2500, 10000 Mbps (e.g. 88E6190X) */
int mv88e6390x_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed)
{
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(chip, port, speed, true, true);
}
/* Offset 0x04: Port Control Register */
static const char * const mv88e6xxx_port_state_names[] = {
[PORT_CONTROL_STATE_DISABLED] = "Disabled",
[PORT_CONTROL_STATE_BLOCKING] = "Blocking/Listening",
[PORT_CONTROL_STATE_LEARNING] = "Learning",
[PORT_CONTROL_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, PORT_CONTROL, ®);
if (err)
return err;
reg &= ~PORT_CONTROL_STATE_MASK;
reg |= state;
err = mv88e6xxx_port_write(chip, port, PORT_CONTROL, reg);
if (err)
return err;
netdev_dbg(chip->ds->ports[port].netdev, "PortState set to %s\n",
mv88e6xxx_port_state_names[state]);
return 0;
}
/* Offset 0x05: Port Control 1 */
/* Offset 0x06: Port Based VLAN Map */
int mv88e6xxx_port_set_vlan_map(struct mv88e6xxx_chip *chip, int port, u16 map)
{
const u16 mask = GENMASK(mv88e6xxx_num_ports(chip) - 1, 0);
u16 reg;
int err;
err = mv88e6xxx_port_read(chip, port, PORT_BASE_VLAN, ®);
if (err)
return err;
reg &= ~mask;
reg |= map & mask;
err = mv88e6xxx_port_write(chip, port, PORT_BASE_VLAN, reg);
if (err)
return err;
netdev_dbg(chip->ds->ports[port].netdev, "VLANTable set to %.3x\n",
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, PORT_BASE_VLAN, ®);
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, PORT_CONTROL_1, ®);
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, PORT_BASE_VLAN, ®);
if (err)
return err;
reg &= 0x0fff;
reg |= (fid & 0x000f) << 12;
err = mv88e6xxx_port_write(chip, port, 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, PORT_CONTROL_1, ®);
if (err)
return err;
reg &= ~upper_mask;
reg |= (fid >> 4) & upper_mask;
err = mv88e6xxx_port_write(chip, port, PORT_CONTROL_1, reg);
if (err)
return err;
}
netdev_dbg(chip->ds->ports[port].netdev, "FID set to %u\n", 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, PORT_DEFAULT_VLAN, ®);
if (err)
return err;
*pvid = reg & 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, PORT_DEFAULT_VLAN, ®);
if (err)
return err;
reg &= ~PORT_DEFAULT_VLAN_MASK;
reg |= pvid & PORT_DEFAULT_VLAN_MASK;
err = mv88e6xxx_port_write(chip, port, PORT_DEFAULT_VLAN, reg);
if (err)
return err;
netdev_dbg(chip->ds->ports[port].netdev, "DefaultVID set to %u\n",
pvid);
return 0;
}
/* Offset 0x08: Port Control 2 Register */
static const char * const mv88e6xxx_port_8021q_mode_names[] = {
[PORT_CONTROL_2_8021Q_DISABLED] = "Disabled",
[PORT_CONTROL_2_8021Q_FALLBACK] = "Fallback",
[PORT_CONTROL_2_8021Q_CHECK] = "Check",
[PORT_CONTROL_2_8021Q_SECURE] = "Secure",
};
int mv88e6xxx_port_set_8021q_mode(struct mv88e6xxx_chip *chip, int port,
u16 mode)
{
u16 reg;
int err;
err = mv88e6xxx_port_read(chip, port, PORT_CONTROL_2, ®);
if (err)
return err;
reg &= ~PORT_CONTROL_2_8021Q_MASK;
reg |= mode & PORT_CONTROL_2_8021Q_MASK;
err = mv88e6xxx_port_write(chip, port, PORT_CONTROL_2, reg);
if (err)
return err;
netdev_dbg(chip->ds->ports[port].netdev, "802.1QMode set to %s\n",
mv88e6xxx_port_8021q_mode_names[mode]);
return 0;
}
|
