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896333c93ca95e7830cfb9f96d6017ab94986197
[openwrt.git] / target / linux / generic / files / drivers / net / phy / rtl8366s.c
1 /*
2 * Platform driver for the Realtek RTL8366S ethernet switch
3 *
4 * Copyright (C) 2009-2010 Gabor Juhos <juhosg@openwrt.org>
5 * Copyright (C) 2010 Antti Seppälä <a.seppala@gmail.com>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License version 2 as published
9 * by the Free Software Foundation.
10 */
11
12 #include <linux/kernel.h>
13 #include <linux/module.h>
14 #include <linux/init.h>
15 #include <linux/platform_device.h>
16 #include <linux/delay.h>
17 #include <linux/skbuff.h>
18 #include <linux/rtl8366s.h>
19
20 #include "rtl8366_smi.h"
21
22 #define RTL8366S_DRIVER_DESC "Realtek RTL8366S ethernet switch driver"
23 #define RTL8366S_DRIVER_VER "0.2.2"
24
25 #define RTL8366S_PHY_NO_MAX 4
26 #define RTL8366S_PHY_PAGE_MAX 7
27 #define RTL8366S_PHY_ADDR_MAX 31
28
29 /* Switch Global Configuration register */
30 #define RTL8366S_SGCR 0x0000
31 #define RTL8366S_SGCR_EN_BC_STORM_CTRL BIT(0)
32 #define RTL8366S_SGCR_MAX_LENGTH(_x) (_x << 4)
33 #define RTL8366S_SGCR_MAX_LENGTH_MASK RTL8366S_SGCR_MAX_LENGTH(0x3)
34 #define RTL8366S_SGCR_MAX_LENGTH_1522 RTL8366S_SGCR_MAX_LENGTH(0x0)
35 #define RTL8366S_SGCR_MAX_LENGTH_1536 RTL8366S_SGCR_MAX_LENGTH(0x1)
36 #define RTL8366S_SGCR_MAX_LENGTH_1552 RTL8366S_SGCR_MAX_LENGTH(0x2)
37 #define RTL8366S_SGCR_MAX_LENGTH_16000 RTL8366S_SGCR_MAX_LENGTH(0x3)
38 #define RTL8366S_SGCR_EN_VLAN BIT(13)
39
40 /* Port Enable Control register */
41 #define RTL8366S_PECR 0x0001
42
43 /* Switch Security Control registers */
44 #define RTL8366S_SSCR0 0x0002
45 #define RTL8366S_SSCR1 0x0003
46 #define RTL8366S_SSCR2 0x0004
47 #define RTL8366S_SSCR2_DROP_UNKNOWN_DA BIT(0)
48
49 #define RTL8366S_RESET_CTRL_REG 0x0100
50 #define RTL8366S_CHIP_CTRL_RESET_HW 1
51 #define RTL8366S_CHIP_CTRL_RESET_SW (1 << 1)
52
53 #define RTL8366S_CHIP_VERSION_CTRL_REG 0x0104
54 #define RTL8366S_CHIP_VERSION_MASK 0xf
55 #define RTL8366S_CHIP_ID_REG 0x0105
56 #define RTL8366S_CHIP_ID_8366 0x8366
57
58 /* PHY registers control */
59 #define RTL8366S_PHY_ACCESS_CTRL_REG 0x8028
60 #define RTL8366S_PHY_ACCESS_DATA_REG 0x8029
61
62 #define RTL8366S_PHY_CTRL_READ 1
63 #define RTL8366S_PHY_CTRL_WRITE 0
64
65 #define RTL8366S_PHY_REG_MASK 0x1f
66 #define RTL8366S_PHY_PAGE_OFFSET 5
67 #define RTL8366S_PHY_PAGE_MASK (0x7 << 5)
68 #define RTL8366S_PHY_NO_OFFSET 9
69 #define RTL8366S_PHY_NO_MASK (0x1f << 9)
70
71 /* LED control registers */
72 #define RTL8366S_LED_BLINKRATE_REG 0x0420
73 #define RTL8366S_LED_BLINKRATE_BIT 0
74 #define RTL8366S_LED_BLINKRATE_MASK 0x0007
75
76 #define RTL8366S_LED_CTRL_REG 0x0421
77 #define RTL8366S_LED_0_1_CTRL_REG 0x0422
78 #define RTL8366S_LED_2_3_CTRL_REG 0x0423
79
80 #define RTL8366S_MIB_COUNT 33
81 #define RTL8366S_GLOBAL_MIB_COUNT 1
82 #define RTL8366S_MIB_COUNTER_PORT_OFFSET 0x0040
83 #define RTL8366S_MIB_COUNTER_BASE 0x1000
84 #define RTL8366S_MIB_COUNTER_PORT_OFFSET2 0x0008
85 #define RTL8366S_MIB_COUNTER_BASE2 0x1180
86 #define RTL8366S_MIB_CTRL_REG 0x11F0
87 #define RTL8366S_MIB_CTRL_USER_MASK 0x01FF
88 #define RTL8366S_MIB_CTRL_BUSY_MASK 0x0001
89 #define RTL8366S_MIB_CTRL_RESET_MASK 0x0002
90
91 #define RTL8366S_MIB_CTRL_GLOBAL_RESET_MASK 0x0004
92 #define RTL8366S_MIB_CTRL_PORT_RESET_BIT 0x0003
93 #define RTL8366S_MIB_CTRL_PORT_RESET_MASK 0x01FC
94
95
96 #define RTL8366S_PORT_VLAN_CTRL_BASE 0x0058
97 #define RTL8366S_PORT_VLAN_CTRL_REG(_p) \
98 (RTL8366S_PORT_VLAN_CTRL_BASE + (_p) / 4)
99 #define RTL8366S_PORT_VLAN_CTRL_MASK 0xf
100 #define RTL8366S_PORT_VLAN_CTRL_SHIFT(_p) (4 * ((_p) % 4))
101
102
103 #define RTL8366S_VLAN_TABLE_READ_BASE 0x018B
104 #define RTL8366S_VLAN_TABLE_WRITE_BASE 0x0185
105
106 #define RTL8366S_VLAN_TB_CTRL_REG 0x010F
107
108 #define RTL8366S_TABLE_ACCESS_CTRL_REG 0x0180
109 #define RTL8366S_TABLE_VLAN_READ_CTRL 0x0E01
110 #define RTL8366S_TABLE_VLAN_WRITE_CTRL 0x0F01
111
112 #define RTL8366S_VLAN_MC_BASE(_x) (0x0016 + (_x) * 2)
113
114 #define RTL8366S_VLAN_MEMBERINGRESS_REG 0x0379
115
116 #define RTL8366S_PORT_LINK_STATUS_BASE 0x0060
117 #define RTL8366S_PORT_STATUS_SPEED_MASK 0x0003
118 #define RTL8366S_PORT_STATUS_DUPLEX_MASK 0x0004
119 #define RTL8366S_PORT_STATUS_LINK_MASK 0x0010
120 #define RTL8366S_PORT_STATUS_TXPAUSE_MASK 0x0020
121 #define RTL8366S_PORT_STATUS_RXPAUSE_MASK 0x0040
122 #define RTL8366S_PORT_STATUS_AN_MASK 0x0080
123
124
125 #define RTL8366S_PORT_NUM_CPU 5
126 #define RTL8366S_NUM_PORTS 6
127 #define RTL8366S_NUM_VLANS 16
128 #define RTL8366S_NUM_LEDGROUPS 4
129 #define RTL8366S_NUM_VIDS 4096
130 #define RTL8366S_PRIORITYMAX 7
131 #define RTL8366S_FIDMAX 7
132
133
134 #define RTL8366S_PORT_1 (1 << 0) /* In userspace port 0 */
135 #define RTL8366S_PORT_2 (1 << 1) /* In userspace port 1 */
136 #define RTL8366S_PORT_3 (1 << 2) /* In userspace port 2 */
137 #define RTL8366S_PORT_4 (1 << 3) /* In userspace port 3 */
138
139 #define RTL8366S_PORT_UNKNOWN (1 << 4) /* No known connection */
140 #define RTL8366S_PORT_CPU (1 << 5) /* CPU port */
141
142 #define RTL8366S_PORT_ALL (RTL8366S_PORT_1 | \
143 RTL8366S_PORT_2 | \
144 RTL8366S_PORT_3 | \
145 RTL8366S_PORT_4 | \
146 RTL8366S_PORT_UNKNOWN | \
147 RTL8366S_PORT_CPU)
148
149 #define RTL8366S_PORT_ALL_BUT_CPU (RTL8366S_PORT_1 | \
150 RTL8366S_PORT_2 | \
151 RTL8366S_PORT_3 | \
152 RTL8366S_PORT_4 | \
153 RTL8366S_PORT_UNKNOWN)
154
155 #define RTL8366S_PORT_ALL_EXTERNAL (RTL8366S_PORT_1 | \
156 RTL8366S_PORT_2 | \
157 RTL8366S_PORT_3 | \
158 RTL8366S_PORT_4)
159
160 #define RTL8366S_PORT_ALL_INTERNAL (RTL8366S_PORT_UNKNOWN | \
161 RTL8366S_PORT_CPU)
162
163 #define RTL8366S_VLAN_VID_MASK 0xfff
164 #define RTL8366S_VLAN_PRIORITY_SHIFT 12
165 #define RTL8366S_VLAN_PRIORITY_MASK 0x7
166 #define RTL8366S_VLAN_MEMBER_MASK 0x3f
167 #define RTL8366S_VLAN_UNTAG_SHIFT 6
168 #define RTL8366S_VLAN_UNTAG_MASK 0x3f
169 #define RTL8366S_VLAN_FID_SHIFT 12
170 #define RTL8366S_VLAN_FID_MASK 0x7
171
172 static struct rtl8366_mib_counter rtl8366s_mib_counters[] = {
173 { 0, 0, 4, "IfInOctets" },
174 { 0, 4, 4, "EtherStatsOctets" },
175 { 0, 8, 2, "EtherStatsUnderSizePkts" },
176 { 0, 10, 2, "EtherFragments" },
177 { 0, 12, 2, "EtherStatsPkts64Octets" },
178 { 0, 14, 2, "EtherStatsPkts65to127Octets" },
179 { 0, 16, 2, "EtherStatsPkts128to255Octets" },
180 { 0, 18, 2, "EtherStatsPkts256to511Octets" },
181 { 0, 20, 2, "EtherStatsPkts512to1023Octets" },
182 { 0, 22, 2, "EtherStatsPkts1024to1518Octets" },
183 { 0, 24, 2, "EtherOversizeStats" },
184 { 0, 26, 2, "EtherStatsJabbers" },
185 { 0, 28, 2, "IfInUcastPkts" },
186 { 0, 30, 2, "EtherStatsMulticastPkts" },
187 { 0, 32, 2, "EtherStatsBroadcastPkts" },
188 { 0, 34, 2, "EtherStatsDropEvents" },
189 { 0, 36, 2, "Dot3StatsFCSErrors" },
190 { 0, 38, 2, "Dot3StatsSymbolErrors" },
191 { 0, 40, 2, "Dot3InPauseFrames" },
192 { 0, 42, 2, "Dot3ControlInUnknownOpcodes" },
193 { 0, 44, 4, "IfOutOctets" },
194 { 0, 48, 2, "Dot3StatsSingleCollisionFrames" },
195 { 0, 50, 2, "Dot3StatMultipleCollisionFrames" },
196 { 0, 52, 2, "Dot3sDeferredTransmissions" },
197 { 0, 54, 2, "Dot3StatsLateCollisions" },
198 { 0, 56, 2, "EtherStatsCollisions" },
199 { 0, 58, 2, "Dot3StatsExcessiveCollisions" },
200 { 0, 60, 2, "Dot3OutPauseFrames" },
201 { 0, 62, 2, "Dot1dBasePortDelayExceededDiscards" },
202
203 /*
204 * The following counters are accessible at a different
205 * base address.
206 */
207 { 1, 0, 2, "Dot1dTpPortInDiscards" },
208 { 1, 2, 2, "IfOutUcastPkts" },
209 { 1, 4, 2, "IfOutMulticastPkts" },
210 { 1, 6, 2, "IfOutBroadcastPkts" },
211 };
212
213 #define REG_WR(_smi, _reg, _val) \
214 do { \
215 err = rtl8366_smi_write_reg(_smi, _reg, _val); \
216 if (err) \
217 return err; \
218 } while (0)
219
220 #define REG_RMW(_smi, _reg, _mask, _val) \
221 do { \
222 err = rtl8366_smi_rmwr(_smi, _reg, _mask, _val); \
223 if (err) \
224 return err; \
225 } while (0)
226
227 static int rtl8366s_reset_chip(struct rtl8366_smi *smi)
228 {
229 int timeout = 10;
230 u32 data;
231
232 rtl8366_smi_write_reg(smi, RTL8366S_RESET_CTRL_REG,
233 RTL8366S_CHIP_CTRL_RESET_HW);
234 do {
235 msleep(1);
236 if (rtl8366_smi_read_reg(smi, RTL8366S_RESET_CTRL_REG, &data))
237 return -EIO;
238
239 if (!(data & RTL8366S_CHIP_CTRL_RESET_HW))
240 break;
241 } while (--timeout);
242
243 if (!timeout) {
244 printk("Timeout waiting for the switch to reset\n");
245 return -EIO;
246 }
247
248 return 0;
249 }
250
251 static int rtl8366s_hw_init(struct rtl8366_smi *smi)
252 {
253 int err;
254
255 /* set maximum packet length to 1536 bytes */
256 REG_RMW(smi, RTL8366S_SGCR, RTL8366S_SGCR_MAX_LENGTH_MASK,
257 RTL8366S_SGCR_MAX_LENGTH_1536);
258
259 /* enable all ports */
260 REG_WR(smi, RTL8366S_PECR, 0);
261
262 /* enable learning for all ports */
263 REG_WR(smi, RTL8366S_SSCR0, 0);
264
265 /* enable auto ageing for all ports */
266 REG_WR(smi, RTL8366S_SSCR1, 0);
267
268 /*
269 * discard VLAN tagged packets if the port is not a member of
270 * the VLAN with which the packets is associated.
271 */
272 REG_WR(smi, RTL8366S_VLAN_MEMBERINGRESS_REG, RTL8366S_PORT_ALL);
273
274 /* don't drop packets whose DA has not been learned */
275 REG_RMW(smi, RTL8366S_SSCR2, RTL8366S_SSCR2_DROP_UNKNOWN_DA, 0);
276
277 return 0;
278 }
279
280 static int rtl8366s_read_phy_reg(struct rtl8366_smi *smi,
281 u32 phy_no, u32 page, u32 addr, u32 *data)
282 {
283 u32 reg;
284 int ret;
285
286 if (phy_no > RTL8366S_PHY_NO_MAX)
287 return -EINVAL;
288
289 if (page > RTL8366S_PHY_PAGE_MAX)
290 return -EINVAL;
291
292 if (addr > RTL8366S_PHY_ADDR_MAX)
293 return -EINVAL;
294
295 ret = rtl8366_smi_write_reg(smi, RTL8366S_PHY_ACCESS_CTRL_REG,
296 RTL8366S_PHY_CTRL_READ);
297 if (ret)
298 return ret;
299
300 reg = 0x8000 | (1 << (phy_no + RTL8366S_PHY_NO_OFFSET)) |
301 ((page << RTL8366S_PHY_PAGE_OFFSET) & RTL8366S_PHY_PAGE_MASK) |
302 (addr & RTL8366S_PHY_REG_MASK);
303
304 ret = rtl8366_smi_write_reg(smi, reg, 0);
305 if (ret)
306 return ret;
307
308 ret = rtl8366_smi_read_reg(smi, RTL8366S_PHY_ACCESS_DATA_REG, data);
309 if (ret)
310 return ret;
311
312 return 0;
313 }
314
315 static int rtl8366s_write_phy_reg(struct rtl8366_smi *smi,
316 u32 phy_no, u32 page, u32 addr, u32 data)
317 {
318 u32 reg;
319 int ret;
320
321 if (phy_no > RTL8366S_PHY_NO_MAX)
322 return -EINVAL;
323
324 if (page > RTL8366S_PHY_PAGE_MAX)
325 return -EINVAL;
326
327 if (addr > RTL8366S_PHY_ADDR_MAX)
328 return -EINVAL;
329
330 ret = rtl8366_smi_write_reg(smi, RTL8366S_PHY_ACCESS_CTRL_REG,
331 RTL8366S_PHY_CTRL_WRITE);
332 if (ret)
333 return ret;
334
335 reg = 0x8000 | (1 << (phy_no + RTL8366S_PHY_NO_OFFSET)) |
336 ((page << RTL8366S_PHY_PAGE_OFFSET) & RTL8366S_PHY_PAGE_MASK) |
337 (addr & RTL8366S_PHY_REG_MASK);
338
339 ret = rtl8366_smi_write_reg(smi, reg, data);
340 if (ret)
341 return ret;
342
343 return 0;
344 }
345
346 static int rtl8366_get_mib_counter(struct rtl8366_smi *smi, int counter,
347 int port, unsigned long long *val)
348 {
349 int i;
350 int err;
351 u32 addr, data;
352 u64 mibvalue;
353
354 if (port > RTL8366S_NUM_PORTS || counter >= RTL8366S_MIB_COUNT)
355 return -EINVAL;
356
357 switch (rtl8366s_mib_counters[counter].base) {
358 case 0:
359 addr = RTL8366S_MIB_COUNTER_BASE +
360 RTL8366S_MIB_COUNTER_PORT_OFFSET * port;
361 break;
362
363 case 1:
364 addr = RTL8366S_MIB_COUNTER_BASE2 +
365 RTL8366S_MIB_COUNTER_PORT_OFFSET2 * port;
366 break;
367
368 default:
369 return -EINVAL;
370 }
371
372 addr += rtl8366s_mib_counters[counter].offset;
373
374 /*
375 * Writing access counter address first
376 * then ASIC will prepare 64bits counter wait for being retrived
377 */
378 data = 0; /* writing data will be discard by ASIC */
379 err = rtl8366_smi_write_reg(smi, addr, data);
380 if (err)
381 return err;
382
383 /* read MIB control register */
384 err = rtl8366_smi_read_reg(smi, RTL8366S_MIB_CTRL_REG, &data);
385 if (err)
386 return err;
387
388 if (data & RTL8366S_MIB_CTRL_BUSY_MASK)
389 return -EBUSY;
390
391 if (data & RTL8366S_MIB_CTRL_RESET_MASK)
392 return -EIO;
393
394 mibvalue = 0;
395 for (i = rtl8366s_mib_counters[counter].length; i > 0; i--) {
396 err = rtl8366_smi_read_reg(smi, addr + (i - 1), &data);
397 if (err)
398 return err;
399
400 mibvalue = (mibvalue << 16) | (data & 0xFFFF);
401 }
402
403 *val = mibvalue;
404 return 0;
405 }
406
407 static int rtl8366s_get_vlan_4k(struct rtl8366_smi *smi, u32 vid,
408 struct rtl8366_vlan_4k *vlan4k)
409 {
410 u32 data[2];
411 int err;
412 int i;
413
414 memset(vlan4k, '\0', sizeof(struct rtl8366_vlan_4k));
415
416 if (vid >= RTL8366S_NUM_VIDS)
417 return -EINVAL;
418
419 /* write VID */
420 err = rtl8366_smi_write_reg(smi, RTL8366S_VLAN_TABLE_WRITE_BASE,
421 vid & RTL8366S_VLAN_VID_MASK);
422 if (err)
423 return err;
424
425 /* write table access control word */
426 err = rtl8366_smi_write_reg(smi, RTL8366S_TABLE_ACCESS_CTRL_REG,
427 RTL8366S_TABLE_VLAN_READ_CTRL);
428 if (err)
429 return err;
430
431 for (i = 0; i < 2; i++) {
432 err = rtl8366_smi_read_reg(smi,
433 RTL8366S_VLAN_TABLE_READ_BASE + i,
434 &data[i]);
435 if (err)
436 return err;
437 }
438
439 vlan4k->vid = vid;
440 vlan4k->untag = (data[1] >> RTL8366S_VLAN_UNTAG_SHIFT) &
441 RTL8366S_VLAN_UNTAG_MASK;
442 vlan4k->member = data[1] & RTL8366S_VLAN_MEMBER_MASK;
443 vlan4k->fid = (data[1] >> RTL8366S_VLAN_FID_SHIFT) &
444 RTL8366S_VLAN_FID_MASK;
445
446 return 0;
447 }
448
449 static int rtl8366s_set_vlan_4k(struct rtl8366_smi *smi,
450 const struct rtl8366_vlan_4k *vlan4k)
451 {
452 u32 data[2];
453 int err;
454 int i;
455
456 if (vlan4k->vid >= RTL8366S_NUM_VIDS ||
457 vlan4k->member > RTL8366S_PORT_ALL ||
458 vlan4k->untag > RTL8366S_PORT_ALL ||
459 vlan4k->fid > RTL8366S_FIDMAX)
460 return -EINVAL;
461
462 data[0] = vlan4k->vid & RTL8366S_VLAN_VID_MASK;
463 data[1] = (vlan4k->member & RTL8366S_VLAN_MEMBER_MASK) |
464 ((vlan4k->untag & RTL8366S_VLAN_UNTAG_MASK) <<
465 RTL8366S_VLAN_UNTAG_SHIFT) |
466 ((vlan4k->fid & RTL8366S_VLAN_FID_MASK) <<
467 RTL8366S_VLAN_FID_SHIFT);
468
469 for (i = 0; i < 2; i++) {
470 err = rtl8366_smi_write_reg(smi,
471 RTL8366S_VLAN_TABLE_WRITE_BASE + i,
472 data[i]);
473 if (err)
474 return err;
475 }
476
477 /* write table access control word */
478 err = rtl8366_smi_write_reg(smi, RTL8366S_TABLE_ACCESS_CTRL_REG,
479 RTL8366S_TABLE_VLAN_WRITE_CTRL);
480
481 return err;
482 }
483
484 static int rtl8366s_get_vlan_mc(struct rtl8366_smi *smi, u32 index,
485 struct rtl8366_vlan_mc *vlanmc)
486 {
487 u32 data[2];
488 int err;
489 int i;
490
491 memset(vlanmc, '\0', sizeof(struct rtl8366_vlan_mc));
492
493 if (index >= RTL8366S_NUM_VLANS)
494 return -EINVAL;
495
496 for (i = 0; i < 2; i++) {
497 err = rtl8366_smi_read_reg(smi,
498 RTL8366S_VLAN_MC_BASE(index) + i,
499 &data[i]);
500 if (err)
501 return err;
502 }
503
504 vlanmc->vid = data[0] & RTL8366S_VLAN_VID_MASK;
505 vlanmc->priority = (data[0] >> RTL8366S_VLAN_PRIORITY_SHIFT) &
506 RTL8366S_VLAN_PRIORITY_MASK;
507 vlanmc->untag = (data[1] >> RTL8366S_VLAN_UNTAG_SHIFT) &
508 RTL8366S_VLAN_UNTAG_MASK;
509 vlanmc->member = data[1] & RTL8366S_VLAN_MEMBER_MASK;
510 vlanmc->fid = (data[1] >> RTL8366S_VLAN_FID_SHIFT) &
511 RTL8366S_VLAN_FID_MASK;
512
513 return 0;
514 }
515
516 static int rtl8366s_set_vlan_mc(struct rtl8366_smi *smi, u32 index,
517 const struct rtl8366_vlan_mc *vlanmc)
518 {
519 u32 data[2];
520 int err;
521 int i;
522
523 if (index >= RTL8366S_NUM_VLANS ||
524 vlanmc->vid >= RTL8366S_NUM_VIDS ||
525 vlanmc->priority > RTL8366S_PRIORITYMAX ||
526 vlanmc->member > RTL8366S_PORT_ALL ||
527 vlanmc->untag > RTL8366S_PORT_ALL ||
528 vlanmc->fid > RTL8366S_FIDMAX)
529 return -EINVAL;
530
531 data[0] = (vlanmc->vid & RTL8366S_VLAN_VID_MASK) |
532 ((vlanmc->priority & RTL8366S_VLAN_PRIORITY_MASK) <<
533 RTL8366S_VLAN_PRIORITY_SHIFT);
534 data[1] = (vlanmc->member & RTL8366S_VLAN_MEMBER_MASK) |
535 ((vlanmc->untag & RTL8366S_VLAN_UNTAG_MASK) <<
536 RTL8366S_VLAN_UNTAG_SHIFT) |
537 ((vlanmc->fid & RTL8366S_VLAN_FID_MASK) <<
538 RTL8366S_VLAN_FID_SHIFT);
539
540 for (i = 0; i < 2; i++) {
541 err = rtl8366_smi_write_reg(smi,
542 RTL8366S_VLAN_MC_BASE(index) + i,
543 data[i]);
544 if (err)
545 return err;
546 }
547
548 return 0;
549 }
550
551 static int rtl8366s_get_mc_index(struct rtl8366_smi *smi, int port, int *val)
552 {
553 u32 data;
554 int err;
555
556 if (port >= RTL8366S_NUM_PORTS)
557 return -EINVAL;
558
559 err = rtl8366_smi_read_reg(smi, RTL8366S_PORT_VLAN_CTRL_REG(port),
560 &data);
561 if (err)
562 return err;
563
564 *val = (data >> RTL8366S_PORT_VLAN_CTRL_SHIFT(port)) &
565 RTL8366S_PORT_VLAN_CTRL_MASK;
566
567 return 0;
568 }
569
570 static int rtl8366s_set_mc_index(struct rtl8366_smi *smi, int port, int index)
571 {
572 if (port >= RTL8366S_NUM_PORTS || index >= RTL8366S_NUM_VLANS)
573 return -EINVAL;
574
575 return rtl8366_smi_rmwr(smi, RTL8366S_PORT_VLAN_CTRL_REG(port),
576 RTL8366S_PORT_VLAN_CTRL_MASK <<
577 RTL8366S_PORT_VLAN_CTRL_SHIFT(port),
578 (index & RTL8366S_PORT_VLAN_CTRL_MASK) <<
579 RTL8366S_PORT_VLAN_CTRL_SHIFT(port));
580 }
581
582 static int rtl8366s_enable_vlan(struct rtl8366_smi *smi, int enable)
583 {
584 return rtl8366_smi_rmwr(smi, RTL8366S_SGCR, RTL8366S_SGCR_EN_VLAN,
585 (enable) ? RTL8366S_SGCR_EN_VLAN : 0);
586 }
587
588 static int rtl8366s_enable_vlan4k(struct rtl8366_smi *smi, int enable)
589 {
590 return rtl8366_smi_rmwr(smi, RTL8366S_VLAN_TB_CTRL_REG,
591 1, (enable) ? 1 : 0);
592 }
593
594 static int rtl8366s_is_vlan_valid(struct rtl8366_smi *smi, unsigned vlan)
595 {
596 if (vlan == 0 || vlan >= RTL8366S_NUM_VLANS)
597 return 0;
598
599 return 1;
600 }
601
602 static int rtl8366s_sw_reset_mibs(struct switch_dev *dev,
603 const struct switch_attr *attr,
604 struct switch_val *val)
605 {
606 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
607
608 return rtl8366_smi_rmwr(smi, RTL8366S_MIB_CTRL_REG, 0, (1 << 2));
609 }
610
611 static int rtl8366s_sw_get_blinkrate(struct switch_dev *dev,
612 const struct switch_attr *attr,
613 struct switch_val *val)
614 {
615 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
616 u32 data;
617
618 rtl8366_smi_read_reg(smi, RTL8366S_LED_BLINKRATE_REG, &data);
619
620 val->value.i = (data & (RTL8366S_LED_BLINKRATE_MASK));
621
622 return 0;
623 }
624
625 static int rtl8366s_sw_set_blinkrate(struct switch_dev *dev,
626 const struct switch_attr *attr,
627 struct switch_val *val)
628 {
629 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
630
631 if (val->value.i >= 6)
632 return -EINVAL;
633
634 return rtl8366_smi_rmwr(smi, RTL8366S_LED_BLINKRATE_REG,
635 RTL8366S_LED_BLINKRATE_MASK,
636 val->value.i);
637 }
638
639 static int rtl8366s_sw_get_learning_enable(struct switch_dev *dev,
640 const struct switch_attr *attr,
641 struct switch_val *val)
642 {
643 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
644 u32 data;
645
646 rtl8366_smi_read_reg(smi,RTL8366S_SSCR0, &data);
647 val->value.i = !data;
648
649 return 0;
650 }
651
652
653 static int rtl8366s_sw_set_learning_enable(struct switch_dev *dev,
654 const struct switch_attr *attr,
655 struct switch_val *val)
656 {
657 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
658 u32 portmask = 0;
659 int err = 0;
660
661 if (!val->value.i)
662 portmask = RTL8366S_PORT_ALL;
663
664 /* set learning for all ports */
665 REG_WR(smi, RTL8366S_SSCR0, portmask);
666
667 /* set auto ageing for all ports */
668 REG_WR(smi, RTL8366S_SSCR1, portmask);
669
670 return 0;
671 }
672
673
674 static const char *rtl8366s_speed_str(unsigned speed)
675 {
676 switch (speed) {
677 case 0:
678 return "10baseT";
679 case 1:
680 return "100baseT";
681 case 2:
682 return "1000baseT";
683 }
684
685 return "unknown";
686 }
687
688 static int rtl8366s_sw_get_port_link(struct switch_dev *dev,
689 const struct switch_attr *attr,
690 struct switch_val *val)
691 {
692 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
693 u32 len = 0, data = 0;
694
695 if (val->port_vlan >= RTL8366S_NUM_PORTS)
696 return -EINVAL;
697
698 memset(smi->buf, '\0', sizeof(smi->buf));
699 rtl8366_smi_read_reg(smi, RTL8366S_PORT_LINK_STATUS_BASE +
700 (val->port_vlan / 2), &data);
701
702 if (val->port_vlan % 2)
703 data = data >> 8;
704
705 if (data & RTL8366S_PORT_STATUS_LINK_MASK) {
706 len = snprintf(smi->buf, sizeof(smi->buf),
707 "port:%d link:up speed:%s %s-duplex %s%s%s",
708 val->port_vlan,
709 rtl8366s_speed_str(data &
710 RTL8366S_PORT_STATUS_SPEED_MASK),
711 (data & RTL8366S_PORT_STATUS_DUPLEX_MASK) ?
712 "full" : "half",
713 (data & RTL8366S_PORT_STATUS_TXPAUSE_MASK) ?
714 "tx-pause ": "",
715 (data & RTL8366S_PORT_STATUS_RXPAUSE_MASK) ?
716 "rx-pause " : "",
717 (data & RTL8366S_PORT_STATUS_AN_MASK) ?
718 "nway ": "");
719 } else {
720 len = snprintf(smi->buf, sizeof(smi->buf), "port:%d link: down",
721 val->port_vlan);
722 }
723
724 val->value.s = smi->buf;
725 val->len = len;
726
727 return 0;
728 }
729
730 static int rtl8366s_sw_set_port_led(struct switch_dev *dev,
731 const struct switch_attr *attr,
732 struct switch_val *val)
733 {
734 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
735 u32 data;
736 u32 mask;
737 u32 reg;
738
739 if (val->port_vlan >= RTL8366S_NUM_PORTS ||
740 (1 << val->port_vlan) == RTL8366S_PORT_UNKNOWN)
741 return -EINVAL;
742
743 if (val->port_vlan == RTL8366S_PORT_NUM_CPU) {
744 reg = RTL8366S_LED_BLINKRATE_REG;
745 mask = 0xF << 4;
746 data = val->value.i << 4;
747 } else {
748 reg = RTL8366S_LED_CTRL_REG;
749 mask = 0xF << (val->port_vlan * 4),
750 data = val->value.i << (val->port_vlan * 4);
751 }
752
753 return rtl8366_smi_rmwr(smi, reg, mask, data);
754 }
755
756 static int rtl8366s_sw_get_port_led(struct switch_dev *dev,
757 const struct switch_attr *attr,
758 struct switch_val *val)
759 {
760 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
761 u32 data = 0;
762
763 if (val->port_vlan >= RTL8366S_NUM_LEDGROUPS)
764 return -EINVAL;
765
766 rtl8366_smi_read_reg(smi, RTL8366S_LED_CTRL_REG, &data);
767 val->value.i = (data >> (val->port_vlan * 4)) & 0x000F;
768
769 return 0;
770 }
771
772 static int rtl8366s_sw_reset_port_mibs(struct switch_dev *dev,
773 const struct switch_attr *attr,
774 struct switch_val *val)
775 {
776 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
777
778 if (val->port_vlan >= RTL8366S_NUM_PORTS)
779 return -EINVAL;
780
781
782 return rtl8366_smi_rmwr(smi, RTL8366S_MIB_CTRL_REG,
783 0, (1 << (val->port_vlan + 3)));
784 }
785
786 static int rtl8366s_sw_reset_switch(struct switch_dev *dev)
787 {
788 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
789 int err;
790
791 err = rtl8366s_reset_chip(smi);
792 if (err)
793 return err;
794
795 err = rtl8366s_hw_init(smi);
796 if (err)
797 return err;
798
799 return rtl8366_reset_vlan(smi);
800 }
801
802 static struct switch_attr rtl8366s_globals[] = {
803 {
804 .type = SWITCH_TYPE_INT,
805 .name = "enable_learning",
806 .description = "Enable learning, enable aging",
807 .set = rtl8366s_sw_set_learning_enable,
808 .get = rtl8366s_sw_get_learning_enable,
809 .max = 1,
810 }, {
811 .type = SWITCH_TYPE_INT,
812 .name = "enable_vlan",
813 .description = "Enable VLAN mode",
814 .set = rtl8366_sw_set_vlan_enable,
815 .get = rtl8366_sw_get_vlan_enable,
816 .max = 1,
817 .ofs = 1
818 }, {
819 .type = SWITCH_TYPE_INT,
820 .name = "enable_vlan4k",
821 .description = "Enable VLAN 4K mode",
822 .set = rtl8366_sw_set_vlan_enable,
823 .get = rtl8366_sw_get_vlan_enable,
824 .max = 1,
825 .ofs = 2
826 }, {
827 .type = SWITCH_TYPE_NOVAL,
828 .name = "reset_mibs",
829 .description = "Reset all MIB counters",
830 .set = rtl8366s_sw_reset_mibs,
831 }, {
832 .type = SWITCH_TYPE_INT,
833 .name = "blinkrate",
834 .description = "Get/Set LED blinking rate (0 = 43ms, 1 = 84ms,"
835 " 2 = 120ms, 3 = 170ms, 4 = 340ms, 5 = 670ms)",
836 .set = rtl8366s_sw_set_blinkrate,
837 .get = rtl8366s_sw_get_blinkrate,
838 .max = 5
839 },
840 };
841
842 static struct switch_attr rtl8366s_port[] = {
843 {
844 .type = SWITCH_TYPE_STRING,
845 .name = "link",
846 .description = "Get port link information",
847 .max = 1,
848 .set = NULL,
849 .get = rtl8366s_sw_get_port_link,
850 }, {
851 .type = SWITCH_TYPE_NOVAL,
852 .name = "reset_mib",
853 .description = "Reset single port MIB counters",
854 .set = rtl8366s_sw_reset_port_mibs,
855 }, {
856 .type = SWITCH_TYPE_STRING,
857 .name = "mib",
858 .description = "Get MIB counters for port",
859 .max = 33,
860 .set = NULL,
861 .get = rtl8366_sw_get_port_mib,
862 }, {
863 .type = SWITCH_TYPE_INT,
864 .name = "led",
865 .description = "Get/Set port group (0 - 3) led mode (0 - 15)",
866 .max = 15,
867 .set = rtl8366s_sw_set_port_led,
868 .get = rtl8366s_sw_get_port_led,
869 },
870 };
871
872 static struct switch_attr rtl8366s_vlan[] = {
873 {
874 .type = SWITCH_TYPE_STRING,
875 .name = "info",
876 .description = "Get vlan information",
877 .max = 1,
878 .set = NULL,
879 .get = rtl8366_sw_get_vlan_info,
880 },
881 };
882
883 static const struct switch_dev_ops rtl8366_ops = {
884 .attr_global = {
885 .attr = rtl8366s_globals,
886 .n_attr = ARRAY_SIZE(rtl8366s_globals),
887 },
888 .attr_port = {
889 .attr = rtl8366s_port,
890 .n_attr = ARRAY_SIZE(rtl8366s_port),
891 },
892 .attr_vlan = {
893 .attr = rtl8366s_vlan,
894 .n_attr = ARRAY_SIZE(rtl8366s_vlan),
895 },
896
897 .get_vlan_ports = rtl8366_sw_get_vlan_ports,
898 .set_vlan_ports = rtl8366_sw_set_vlan_ports,
899 .get_port_pvid = rtl8366_sw_get_port_pvid,
900 .set_port_pvid = rtl8366_sw_set_port_pvid,
901 .reset_switch = rtl8366s_sw_reset_switch,
902 };
903
904 static int rtl8366s_switch_init(struct rtl8366_smi *smi)
905 {
906 struct switch_dev *dev = &smi->sw_dev;
907 int err;
908
909 dev->name = "RTL8366S";
910 dev->cpu_port = RTL8366S_PORT_NUM_CPU;
911 dev->ports = RTL8366S_NUM_PORTS;
912 dev->vlans = RTL8366S_NUM_VLANS;
913 dev->ops = &rtl8366_ops;
914 dev->devname = dev_name(smi->parent);
915
916 err = register_switch(dev, NULL);
917 if (err)
918 dev_err(smi->parent, "switch registration failed\n");
919
920 return err;
921 }
922
923 static void rtl8366s_switch_cleanup(struct rtl8366_smi *smi)
924 {
925 unregister_switch(&smi->sw_dev);
926 }
927
928 static int rtl8366s_mii_read(struct mii_bus *bus, int addr, int reg)
929 {
930 struct rtl8366_smi *smi = bus->priv;
931 u32 val = 0;
932 int err;
933
934 err = rtl8366s_read_phy_reg(smi, addr, 0, reg, &val);
935 if (err)
936 return 0xffff;
937
938 return val;
939 }
940
941 static int rtl8366s_mii_write(struct mii_bus *bus, int addr, int reg, u16 val)
942 {
943 struct rtl8366_smi *smi = bus->priv;
944 u32 t;
945 int err;
946
947 err = rtl8366s_write_phy_reg(smi, addr, 0, reg, val);
948 /* flush write */
949 (void) rtl8366s_read_phy_reg(smi, addr, 0, reg, &t);
950
951 return err;
952 }
953
954 static int rtl8366s_mii_bus_match(struct mii_bus *bus)
955 {
956 return (bus->read == rtl8366s_mii_read &&
957 bus->write == rtl8366s_mii_write);
958 }
959
960 static int rtl8366s_setup(struct rtl8366_smi *smi)
961 {
962 int ret;
963
964 ret = rtl8366s_reset_chip(smi);
965 if (ret)
966 return ret;
967
968 ret = rtl8366s_hw_init(smi);
969 return ret;
970 }
971
972 static int rtl8366s_detect(struct rtl8366_smi *smi)
973 {
974 u32 chip_id = 0;
975 u32 chip_ver = 0;
976 int ret;
977
978 ret = rtl8366_smi_read_reg(smi, RTL8366S_CHIP_ID_REG, &chip_id);
979 if (ret) {
980 dev_err(smi->parent, "unable to read chip id\n");
981 return ret;
982 }
983
984 switch (chip_id) {
985 case RTL8366S_CHIP_ID_8366:
986 break;
987 default:
988 dev_err(smi->parent, "unknown chip id (%04x)\n", chip_id);
989 return -ENODEV;
990 }
991
992 ret = rtl8366_smi_read_reg(smi, RTL8366S_CHIP_VERSION_CTRL_REG,
993 &chip_ver);
994 if (ret) {
995 dev_err(smi->parent, "unable to read chip version\n");
996 return ret;
997 }
998
999 dev_info(smi->parent, "RTL%04x ver. %u chip found\n",
1000 chip_id, chip_ver & RTL8366S_CHIP_VERSION_MASK);
1001
1002 return 0;
1003 }
1004
1005 static struct rtl8366_smi_ops rtl8366s_smi_ops = {
1006 .detect = rtl8366s_detect,
1007 .setup = rtl8366s_setup,
1008
1009 .mii_read = rtl8366s_mii_read,
1010 .mii_write = rtl8366s_mii_write,
1011
1012 .get_vlan_mc = rtl8366s_get_vlan_mc,
1013 .set_vlan_mc = rtl8366s_set_vlan_mc,
1014 .get_vlan_4k = rtl8366s_get_vlan_4k,
1015 .set_vlan_4k = rtl8366s_set_vlan_4k,
1016 .get_mc_index = rtl8366s_get_mc_index,
1017 .set_mc_index = rtl8366s_set_mc_index,
1018 .get_mib_counter = rtl8366_get_mib_counter,
1019 .is_vlan_valid = rtl8366s_is_vlan_valid,
1020 .enable_vlan = rtl8366s_enable_vlan,
1021 .enable_vlan4k = rtl8366s_enable_vlan4k,
1022 };
1023
1024 static int __init rtl8366s_probe(struct platform_device *pdev)
1025 {
1026 static int rtl8366_smi_version_printed;
1027 struct rtl8366s_platform_data *pdata;
1028 struct rtl8366_smi *smi;
1029 int err;
1030
1031 if (!rtl8366_smi_version_printed++)
1032 printk(KERN_NOTICE RTL8366S_DRIVER_DESC
1033 " version " RTL8366S_DRIVER_VER"\n");
1034
1035 pdata = pdev->dev.platform_data;
1036 if (!pdata) {
1037 dev_err(&pdev->dev, "no platform data specified\n");
1038 err = -EINVAL;
1039 goto err_out;
1040 }
1041
1042 smi = rtl8366_smi_alloc(&pdev->dev);
1043 if (!smi) {
1044 err = -ENOMEM;
1045 goto err_out;
1046 }
1047
1048 smi->gpio_sda = pdata->gpio_sda;
1049 smi->gpio_sck = pdata->gpio_sck;
1050 smi->ops = &rtl8366s_smi_ops;
1051 smi->cpu_port = RTL8366S_PORT_NUM_CPU;
1052 smi->num_ports = RTL8366S_NUM_PORTS;
1053 smi->num_vlan_mc = RTL8366S_NUM_VLANS;
1054 smi->mib_counters = rtl8366s_mib_counters;
1055 smi->num_mib_counters = ARRAY_SIZE(rtl8366s_mib_counters);
1056
1057 err = rtl8366_smi_init(smi);
1058 if (err)
1059 goto err_free_smi;
1060
1061 platform_set_drvdata(pdev, smi);
1062
1063 err = rtl8366s_switch_init(smi);
1064 if (err)
1065 goto err_clear_drvdata;
1066
1067 return 0;
1068
1069 err_clear_drvdata:
1070 platform_set_drvdata(pdev, NULL);
1071 rtl8366_smi_cleanup(smi);
1072 err_free_smi:
1073 kfree(smi);
1074 err_out:
1075 return err;
1076 }
1077
1078 static int rtl8366s_phy_config_init(struct phy_device *phydev)
1079 {
1080 if (!rtl8366s_mii_bus_match(phydev->bus))
1081 return -EINVAL;
1082
1083 return 0;
1084 }
1085
1086 static int rtl8366s_phy_config_aneg(struct phy_device *phydev)
1087 {
1088 return 0;
1089 }
1090
1091 static struct phy_driver rtl8366s_phy_driver = {
1092 .phy_id = 0x001cc960,
1093 .name = "Realtek RTL8366S",
1094 .phy_id_mask = 0x1ffffff0,
1095 .features = PHY_GBIT_FEATURES,
1096 .config_aneg = rtl8366s_phy_config_aneg,
1097 .config_init = rtl8366s_phy_config_init,
1098 .read_status = genphy_read_status,
1099 .driver = {
1100 .owner = THIS_MODULE,
1101 },
1102 };
1103
1104 static int __devexit rtl8366s_remove(struct platform_device *pdev)
1105 {
1106 struct rtl8366_smi *smi = platform_get_drvdata(pdev);
1107
1108 if (smi) {
1109 rtl8366s_switch_cleanup(smi);
1110 platform_set_drvdata(pdev, NULL);
1111 rtl8366_smi_cleanup(smi);
1112 kfree(smi);
1113 }
1114
1115 return 0;
1116 }
1117
1118 static struct platform_driver rtl8366s_driver = {
1119 .driver = {
1120 .name = RTL8366S_DRIVER_NAME,
1121 .owner = THIS_MODULE,
1122 },
1123 .probe = rtl8366s_probe,
1124 .remove = __devexit_p(rtl8366s_remove),
1125 };
1126
1127 static int __init rtl8366s_module_init(void)
1128 {
1129 int ret;
1130 ret = platform_driver_register(&rtl8366s_driver);
1131 if (ret)
1132 return ret;
1133
1134 ret = phy_driver_register(&rtl8366s_phy_driver);
1135 if (ret)
1136 goto err_platform_unregister;
1137
1138 return 0;
1139
1140 err_platform_unregister:
1141 platform_driver_unregister(&rtl8366s_driver);
1142 return ret;
1143 }
1144 module_init(rtl8366s_module_init);
1145
1146 static void __exit rtl8366s_module_exit(void)
1147 {
1148 phy_driver_unregister(&rtl8366s_phy_driver);
1149 platform_driver_unregister(&rtl8366s_driver);
1150 }
1151 module_exit(rtl8366s_module_exit);
1152
1153 MODULE_DESCRIPTION(RTL8366S_DRIVER_DESC);
1154 MODULE_VERSION(RTL8366S_DRIVER_VER);
1155 MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
1156 MODULE_AUTHOR("Antti Seppälä <a.seppala@gmail.com>");
1157 MODULE_LICENSE("GPL v2");
1158 MODULE_ALIAS("platform:" RTL8366S_DRIVER_NAME);
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