d45e4d76c35cef637ea6d83f98a4b1017aa1e407
[openwrt/svn-archive/archive.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 #define RTL8366S_PHY_WAN 4
29
30 /* Switch Global Configuration register */
31 #define RTL8366S_SGCR 0x0000
32 #define RTL8366S_SGCR_EN_BC_STORM_CTRL BIT(0)
33 #define RTL8366S_SGCR_MAX_LENGTH(_x) (_x << 4)
34 #define RTL8366S_SGCR_MAX_LENGTH_MASK RTL8366S_SGCR_MAX_LENGTH(0x3)
35 #define RTL8366S_SGCR_MAX_LENGTH_1522 RTL8366S_SGCR_MAX_LENGTH(0x0)
36 #define RTL8366S_SGCR_MAX_LENGTH_1536 RTL8366S_SGCR_MAX_LENGTH(0x1)
37 #define RTL8366S_SGCR_MAX_LENGTH_1552 RTL8366S_SGCR_MAX_LENGTH(0x2)
38 #define RTL8366S_SGCR_MAX_LENGTH_16000 RTL8366S_SGCR_MAX_LENGTH(0x3)
39 #define RTL8366S_SGCR_EN_VLAN BIT(13)
40
41 /* Port Enable Control register */
42 #define RTL8366S_PECR 0x0001
43
44 /* Switch Security Control registers */
45 #define RTL8366S_SSCR0 0x0002
46 #define RTL8366S_SSCR1 0x0003
47 #define RTL8366S_SSCR2 0x0004
48 #define RTL8366S_SSCR2_DROP_UNKNOWN_DA BIT(0)
49
50 #define RTL8366S_RESET_CTRL_REG 0x0100
51 #define RTL8366S_CHIP_CTRL_RESET_HW 1
52 #define RTL8366S_CHIP_CTRL_RESET_SW (1 << 1)
53
54 #define RTL8366S_CHIP_VERSION_CTRL_REG 0x0104
55 #define RTL8366S_CHIP_VERSION_MASK 0xf
56 #define RTL8366S_CHIP_ID_REG 0x0105
57 #define RTL8366S_CHIP_ID_8366 0x8366
58
59 /* PHY registers control */
60 #define RTL8366S_PHY_ACCESS_CTRL_REG 0x8028
61 #define RTL8366S_PHY_ACCESS_DATA_REG 0x8029
62
63 #define RTL8366S_PHY_CTRL_READ 1
64 #define RTL8366S_PHY_CTRL_WRITE 0
65
66 #define RTL8366S_PHY_REG_MASK 0x1f
67 #define RTL8366S_PHY_PAGE_OFFSET 5
68 #define RTL8366S_PHY_PAGE_MASK (0x7 << 5)
69 #define RTL8366S_PHY_NO_OFFSET 9
70 #define RTL8366S_PHY_NO_MASK (0x1f << 9)
71
72 /* LED control registers */
73 #define RTL8366S_LED_BLINKRATE_REG 0x0420
74 #define RTL8366S_LED_BLINKRATE_BIT 0
75 #define RTL8366S_LED_BLINKRATE_MASK 0x0007
76
77 #define RTL8366S_LED_CTRL_REG 0x0421
78 #define RTL8366S_LED_0_1_CTRL_REG 0x0422
79 #define RTL8366S_LED_2_3_CTRL_REG 0x0423
80
81 #define RTL8366S_MIB_COUNT 33
82 #define RTL8366S_GLOBAL_MIB_COUNT 1
83 #define RTL8366S_MIB_COUNTER_PORT_OFFSET 0x0040
84 #define RTL8366S_MIB_COUNTER_BASE 0x1000
85 #define RTL8366S_MIB_COUNTER_PORT_OFFSET2 0x0008
86 #define RTL8366S_MIB_COUNTER_BASE2 0x1180
87 #define RTL8366S_MIB_CTRL_REG 0x11F0
88 #define RTL8366S_MIB_CTRL_USER_MASK 0x01FF
89 #define RTL8366S_MIB_CTRL_BUSY_MASK 0x0001
90 #define RTL8366S_MIB_CTRL_RESET_MASK 0x0002
91
92 #define RTL8366S_MIB_CTRL_GLOBAL_RESET_MASK 0x0004
93 #define RTL8366S_MIB_CTRL_PORT_RESET_BIT 0x0003
94 #define RTL8366S_MIB_CTRL_PORT_RESET_MASK 0x01FC
95
96
97 #define RTL8366S_PORT_VLAN_CTRL_BASE 0x0058
98 #define RTL8366S_PORT_VLAN_CTRL_REG(_p) \
99 (RTL8366S_PORT_VLAN_CTRL_BASE + (_p) / 4)
100 #define RTL8366S_PORT_VLAN_CTRL_MASK 0xf
101 #define RTL8366S_PORT_VLAN_CTRL_SHIFT(_p) (4 * ((_p) % 4))
102
103
104 #define RTL8366S_VLAN_TABLE_READ_BASE 0x018B
105 #define RTL8366S_VLAN_TABLE_WRITE_BASE 0x0185
106
107 #define RTL8366S_VLAN_TB_CTRL_REG 0x010F
108
109 #define RTL8366S_TABLE_ACCESS_CTRL_REG 0x0180
110 #define RTL8366S_TABLE_VLAN_READ_CTRL 0x0E01
111 #define RTL8366S_TABLE_VLAN_WRITE_CTRL 0x0F01
112
113 #define RTL8366S_VLAN_MC_BASE(_x) (0x0016 + (_x) * 2)
114
115 #define RTL8366S_VLAN_MEMBERINGRESS_REG 0x0379
116
117 #define RTL8366S_PORT_LINK_STATUS_BASE 0x0060
118 #define RTL8366S_PORT_STATUS_SPEED_MASK 0x0003
119 #define RTL8366S_PORT_STATUS_DUPLEX_MASK 0x0004
120 #define RTL8366S_PORT_STATUS_LINK_MASK 0x0010
121 #define RTL8366S_PORT_STATUS_TXPAUSE_MASK 0x0020
122 #define RTL8366S_PORT_STATUS_RXPAUSE_MASK 0x0040
123 #define RTL8366S_PORT_STATUS_AN_MASK 0x0080
124
125
126 #define RTL8366S_PORT_NUM_CPU 5
127 #define RTL8366S_NUM_PORTS 6
128 #define RTL8366S_NUM_VLANS 16
129 #define RTL8366S_NUM_LEDGROUPS 4
130 #define RTL8366S_NUM_VIDS 4096
131 #define RTL8366S_PRIORITYMAX 7
132 #define RTL8366S_FIDMAX 7
133
134
135 #define RTL8366S_PORT_1 (1 << 0) /* In userspace port 0 */
136 #define RTL8366S_PORT_2 (1 << 1) /* In userspace port 1 */
137 #define RTL8366S_PORT_3 (1 << 2) /* In userspace port 2 */
138 #define RTL8366S_PORT_4 (1 << 3) /* In userspace port 3 */
139
140 #define RTL8366S_PORT_UNKNOWN (1 << 4) /* No known connection */
141 #define RTL8366S_PORT_CPU (1 << 5) /* CPU port */
142
143 #define RTL8366S_PORT_ALL (RTL8366S_PORT_1 | \
144 RTL8366S_PORT_2 | \
145 RTL8366S_PORT_3 | \
146 RTL8366S_PORT_4 | \
147 RTL8366S_PORT_UNKNOWN | \
148 RTL8366S_PORT_CPU)
149
150 #define RTL8366S_PORT_ALL_BUT_CPU (RTL8366S_PORT_1 | \
151 RTL8366S_PORT_2 | \
152 RTL8366S_PORT_3 | \
153 RTL8366S_PORT_4 | \
154 RTL8366S_PORT_UNKNOWN)
155
156 #define RTL8366S_PORT_ALL_EXTERNAL (RTL8366S_PORT_1 | \
157 RTL8366S_PORT_2 | \
158 RTL8366S_PORT_3 | \
159 RTL8366S_PORT_4)
160
161 #define RTL8366S_PORT_ALL_INTERNAL (RTL8366S_PORT_UNKNOWN | \
162 RTL8366S_PORT_CPU)
163
164 #define RTL8366S_VLAN_VID_MASK 0xfff
165 #define RTL8366S_VLAN_PRIORITY_SHIFT 12
166 #define RTL8366S_VLAN_PRIORITY_MASK 0x7
167 #define RTL8366S_VLAN_MEMBER_MASK 0x3f
168 #define RTL8366S_VLAN_UNTAG_SHIFT 6
169 #define RTL8366S_VLAN_UNTAG_MASK 0x3f
170 #define RTL8366S_VLAN_FID_SHIFT 12
171 #define RTL8366S_VLAN_FID_MASK 0x7
172
173 static struct rtl8366_mib_counter rtl8366s_mib_counters[] = {
174 { 0, 0, 4, "IfInOctets" },
175 { 0, 4, 4, "EtherStatsOctets" },
176 { 0, 8, 2, "EtherStatsUnderSizePkts" },
177 { 0, 10, 2, "EtherFragments" },
178 { 0, 12, 2, "EtherStatsPkts64Octets" },
179 { 0, 14, 2, "EtherStatsPkts65to127Octets" },
180 { 0, 16, 2, "EtherStatsPkts128to255Octets" },
181 { 0, 18, 2, "EtherStatsPkts256to511Octets" },
182 { 0, 20, 2, "EtherStatsPkts512to1023Octets" },
183 { 0, 22, 2, "EtherStatsPkts1024to1518Octets" },
184 { 0, 24, 2, "EtherOversizeStats" },
185 { 0, 26, 2, "EtherStatsJabbers" },
186 { 0, 28, 2, "IfInUcastPkts" },
187 { 0, 30, 2, "EtherStatsMulticastPkts" },
188 { 0, 32, 2, "EtherStatsBroadcastPkts" },
189 { 0, 34, 2, "EtherStatsDropEvents" },
190 { 0, 36, 2, "Dot3StatsFCSErrors" },
191 { 0, 38, 2, "Dot3StatsSymbolErrors" },
192 { 0, 40, 2, "Dot3InPauseFrames" },
193 { 0, 42, 2, "Dot3ControlInUnknownOpcodes" },
194 { 0, 44, 4, "IfOutOctets" },
195 { 0, 48, 2, "Dot3StatsSingleCollisionFrames" },
196 { 0, 50, 2, "Dot3StatMultipleCollisionFrames" },
197 { 0, 52, 2, "Dot3sDeferredTransmissions" },
198 { 0, 54, 2, "Dot3StatsLateCollisions" },
199 { 0, 56, 2, "EtherStatsCollisions" },
200 { 0, 58, 2, "Dot3StatsExcessiveCollisions" },
201 { 0, 60, 2, "Dot3OutPauseFrames" },
202 { 0, 62, 2, "Dot1dBasePortDelayExceededDiscards" },
203
204 /*
205 * The following counters are accessible at a different
206 * base address.
207 */
208 { 1, 0, 2, "Dot1dTpPortInDiscards" },
209 { 1, 2, 2, "IfOutUcastPkts" },
210 { 1, 4, 2, "IfOutMulticastPkts" },
211 { 1, 6, 2, "IfOutBroadcastPkts" },
212 };
213
214 #define REG_WR(_smi, _reg, _val) \
215 do { \
216 err = rtl8366_smi_write_reg(_smi, _reg, _val); \
217 if (err) \
218 return err; \
219 } while (0)
220
221 #define REG_RMW(_smi, _reg, _mask, _val) \
222 do { \
223 err = rtl8366_smi_rmwr(_smi, _reg, _mask, _val); \
224 if (err) \
225 return err; \
226 } while (0)
227
228 static int rtl8366s_reset_chip(struct rtl8366_smi *smi)
229 {
230 int timeout = 10;
231 u32 data;
232
233 rtl8366_smi_write_reg(smi, RTL8366S_RESET_CTRL_REG,
234 RTL8366S_CHIP_CTRL_RESET_HW);
235 do {
236 msleep(1);
237 if (rtl8366_smi_read_reg(smi, RTL8366S_RESET_CTRL_REG, &data))
238 return -EIO;
239
240 if (!(data & RTL8366S_CHIP_CTRL_RESET_HW))
241 break;
242 } while (--timeout);
243
244 if (!timeout) {
245 printk("Timeout waiting for the switch to reset\n");
246 return -EIO;
247 }
248
249 return 0;
250 }
251
252 static int rtl8366s_hw_init(struct rtl8366_smi *smi)
253 {
254 int err;
255
256 /* set maximum packet length to 1536 bytes */
257 REG_RMW(smi, RTL8366S_SGCR, RTL8366S_SGCR_MAX_LENGTH_MASK,
258 RTL8366S_SGCR_MAX_LENGTH_1536);
259
260 /* enable all ports */
261 REG_WR(smi, RTL8366S_PECR, 0);
262
263 /* enable learning for all ports */
264 REG_WR(smi, RTL8366S_SSCR0, 0);
265
266 /* enable auto ageing for all ports */
267 REG_WR(smi, RTL8366S_SSCR1, 0);
268
269 /*
270 * discard VLAN tagged packets if the port is not a member of
271 * the VLAN with which the packets is associated.
272 */
273 REG_WR(smi, RTL8366S_VLAN_MEMBERINGRESS_REG, RTL8366S_PORT_ALL);
274
275 /* don't drop packets whose DA has not been learned */
276 REG_RMW(smi, RTL8366S_SSCR2, RTL8366S_SSCR2_DROP_UNKNOWN_DA, 0);
277
278 return 0;
279 }
280
281 static int rtl8366s_read_phy_reg(struct rtl8366_smi *smi,
282 u32 phy_no, u32 page, u32 addr, u32 *data)
283 {
284 u32 reg;
285 int ret;
286
287 if (phy_no > RTL8366S_PHY_NO_MAX)
288 return -EINVAL;
289
290 if (page > RTL8366S_PHY_PAGE_MAX)
291 return -EINVAL;
292
293 if (addr > RTL8366S_PHY_ADDR_MAX)
294 return -EINVAL;
295
296 ret = rtl8366_smi_write_reg(smi, RTL8366S_PHY_ACCESS_CTRL_REG,
297 RTL8366S_PHY_CTRL_READ);
298 if (ret)
299 return ret;
300
301 reg = 0x8000 | (1 << (phy_no + RTL8366S_PHY_NO_OFFSET)) |
302 ((page << RTL8366S_PHY_PAGE_OFFSET) & RTL8366S_PHY_PAGE_MASK) |
303 (addr & RTL8366S_PHY_REG_MASK);
304
305 ret = rtl8366_smi_write_reg(smi, reg, 0);
306 if (ret)
307 return ret;
308
309 ret = rtl8366_smi_read_reg(smi, RTL8366S_PHY_ACCESS_DATA_REG, data);
310 if (ret)
311 return ret;
312
313 return 0;
314 }
315
316 static int rtl8366s_write_phy_reg(struct rtl8366_smi *smi,
317 u32 phy_no, u32 page, u32 addr, u32 data)
318 {
319 u32 reg;
320 int ret;
321
322 if (phy_no > RTL8366S_PHY_NO_MAX)
323 return -EINVAL;
324
325 if (page > RTL8366S_PHY_PAGE_MAX)
326 return -EINVAL;
327
328 if (addr > RTL8366S_PHY_ADDR_MAX)
329 return -EINVAL;
330
331 ret = rtl8366_smi_write_reg(smi, RTL8366S_PHY_ACCESS_CTRL_REG,
332 RTL8366S_PHY_CTRL_WRITE);
333 if (ret)
334 return ret;
335
336 reg = 0x8000 | (1 << (phy_no + RTL8366S_PHY_NO_OFFSET)) |
337 ((page << RTL8366S_PHY_PAGE_OFFSET) & RTL8366S_PHY_PAGE_MASK) |
338 (addr & RTL8366S_PHY_REG_MASK);
339
340 ret = rtl8366_smi_write_reg(smi, reg, data);
341 if (ret)
342 return ret;
343
344 return 0;
345 }
346
347 static int rtl8366_get_mib_counter(struct rtl8366_smi *smi, int counter,
348 int port, unsigned long long *val)
349 {
350 int i;
351 int err;
352 u32 addr, data;
353 u64 mibvalue;
354
355 if (port > RTL8366S_NUM_PORTS || counter >= RTL8366S_MIB_COUNT)
356 return -EINVAL;
357
358 switch (rtl8366s_mib_counters[counter].base) {
359 case 0:
360 addr = RTL8366S_MIB_COUNTER_BASE +
361 RTL8366S_MIB_COUNTER_PORT_OFFSET * port;
362 break;
363
364 case 1:
365 addr = RTL8366S_MIB_COUNTER_BASE2 +
366 RTL8366S_MIB_COUNTER_PORT_OFFSET2 * port;
367 break;
368
369 default:
370 return -EINVAL;
371 }
372
373 addr += rtl8366s_mib_counters[counter].offset;
374
375 /*
376 * Writing access counter address first
377 * then ASIC will prepare 64bits counter wait for being retrived
378 */
379 data = 0; /* writing data will be discard by ASIC */
380 err = rtl8366_smi_write_reg(smi, addr, data);
381 if (err)
382 return err;
383
384 /* read MIB control register */
385 err = rtl8366_smi_read_reg(smi, RTL8366S_MIB_CTRL_REG, &data);
386 if (err)
387 return err;
388
389 if (data & RTL8366S_MIB_CTRL_BUSY_MASK)
390 return -EBUSY;
391
392 if (data & RTL8366S_MIB_CTRL_RESET_MASK)
393 return -EIO;
394
395 mibvalue = 0;
396 for (i = rtl8366s_mib_counters[counter].length; i > 0; i--) {
397 err = rtl8366_smi_read_reg(smi, addr + (i - 1), &data);
398 if (err)
399 return err;
400
401 mibvalue = (mibvalue << 16) | (data & 0xFFFF);
402 }
403
404 *val = mibvalue;
405 return 0;
406 }
407
408 static int rtl8366s_get_vlan_4k(struct rtl8366_smi *smi, u32 vid,
409 struct rtl8366_vlan_4k *vlan4k)
410 {
411 u32 data[2];
412 int err;
413 int i;
414
415 memset(vlan4k, '\0', sizeof(struct rtl8366_vlan_4k));
416
417 if (vid >= RTL8366S_NUM_VIDS)
418 return -EINVAL;
419
420 /* write VID */
421 err = rtl8366_smi_write_reg(smi, RTL8366S_VLAN_TABLE_WRITE_BASE,
422 vid & RTL8366S_VLAN_VID_MASK);
423 if (err)
424 return err;
425
426 /* write table access control word */
427 err = rtl8366_smi_write_reg(smi, RTL8366S_TABLE_ACCESS_CTRL_REG,
428 RTL8366S_TABLE_VLAN_READ_CTRL);
429 if (err)
430 return err;
431
432 for (i = 0; i < 2; i++) {
433 err = rtl8366_smi_read_reg(smi,
434 RTL8366S_VLAN_TABLE_READ_BASE + i,
435 &data[i]);
436 if (err)
437 return err;
438 }
439
440 vlan4k->vid = vid;
441 vlan4k->untag = (data[1] >> RTL8366S_VLAN_UNTAG_SHIFT) &
442 RTL8366S_VLAN_UNTAG_MASK;
443 vlan4k->member = data[1] & RTL8366S_VLAN_MEMBER_MASK;
444 vlan4k->fid = (data[1] >> RTL8366S_VLAN_FID_SHIFT) &
445 RTL8366S_VLAN_FID_MASK;
446
447 return 0;
448 }
449
450 static int rtl8366s_set_vlan_4k(struct rtl8366_smi *smi,
451 const struct rtl8366_vlan_4k *vlan4k)
452 {
453 u32 data[2];
454 int err;
455 int i;
456
457 if (vlan4k->vid >= RTL8366S_NUM_VIDS ||
458 vlan4k->member > RTL8366S_PORT_ALL ||
459 vlan4k->untag > RTL8366S_PORT_ALL ||
460 vlan4k->fid > RTL8366S_FIDMAX)
461 return -EINVAL;
462
463 data[0] = vlan4k->vid & RTL8366S_VLAN_VID_MASK;
464 data[1] = (vlan4k->member & RTL8366S_VLAN_MEMBER_MASK) |
465 ((vlan4k->untag & RTL8366S_VLAN_UNTAG_MASK) <<
466 RTL8366S_VLAN_UNTAG_SHIFT) |
467 ((vlan4k->fid & RTL8366S_VLAN_FID_MASK) <<
468 RTL8366S_VLAN_FID_SHIFT);
469
470 for (i = 0; i < 2; i++) {
471 err = rtl8366_smi_write_reg(smi,
472 RTL8366S_VLAN_TABLE_WRITE_BASE + i,
473 data[i]);
474 if (err)
475 return err;
476 }
477
478 /* write table access control word */
479 err = rtl8366_smi_write_reg(smi, RTL8366S_TABLE_ACCESS_CTRL_REG,
480 RTL8366S_TABLE_VLAN_WRITE_CTRL);
481
482 return err;
483 }
484
485 static int rtl8366s_get_vlan_mc(struct rtl8366_smi *smi, u32 index,
486 struct rtl8366_vlan_mc *vlanmc)
487 {
488 u32 data[2];
489 int err;
490 int i;
491
492 memset(vlanmc, '\0', sizeof(struct rtl8366_vlan_mc));
493
494 if (index >= RTL8366S_NUM_VLANS)
495 return -EINVAL;
496
497 for (i = 0; i < 2; i++) {
498 err = rtl8366_smi_read_reg(smi,
499 RTL8366S_VLAN_MC_BASE(index) + i,
500 &data[i]);
501 if (err)
502 return err;
503 }
504
505 vlanmc->vid = data[0] & RTL8366S_VLAN_VID_MASK;
506 vlanmc->priority = (data[0] >> RTL8366S_VLAN_PRIORITY_SHIFT) &
507 RTL8366S_VLAN_PRIORITY_MASK;
508 vlanmc->untag = (data[1] >> RTL8366S_VLAN_UNTAG_SHIFT) &
509 RTL8366S_VLAN_UNTAG_MASK;
510 vlanmc->member = data[1] & RTL8366S_VLAN_MEMBER_MASK;
511 vlanmc->fid = (data[1] >> RTL8366S_VLAN_FID_SHIFT) &
512 RTL8366S_VLAN_FID_MASK;
513
514 return 0;
515 }
516
517 static int rtl8366s_set_vlan_mc(struct rtl8366_smi *smi, u32 index,
518 const struct rtl8366_vlan_mc *vlanmc)
519 {
520 u32 data[2];
521 int err;
522 int i;
523
524 if (index >= RTL8366S_NUM_VLANS ||
525 vlanmc->vid >= RTL8366S_NUM_VIDS ||
526 vlanmc->priority > RTL8366S_PRIORITYMAX ||
527 vlanmc->member > RTL8366S_PORT_ALL ||
528 vlanmc->untag > RTL8366S_PORT_ALL ||
529 vlanmc->fid > RTL8366S_FIDMAX)
530 return -EINVAL;
531
532 data[0] = (vlanmc->vid & RTL8366S_VLAN_VID_MASK) |
533 ((vlanmc->priority & RTL8366S_VLAN_PRIORITY_MASK) <<
534 RTL8366S_VLAN_PRIORITY_SHIFT);
535 data[1] = (vlanmc->member & RTL8366S_VLAN_MEMBER_MASK) |
536 ((vlanmc->untag & RTL8366S_VLAN_UNTAG_MASK) <<
537 RTL8366S_VLAN_UNTAG_SHIFT) |
538 ((vlanmc->fid & RTL8366S_VLAN_FID_MASK) <<
539 RTL8366S_VLAN_FID_SHIFT);
540
541 for (i = 0; i < 2; i++) {
542 err = rtl8366_smi_write_reg(smi,
543 RTL8366S_VLAN_MC_BASE(index) + i,
544 data[i]);
545 if (err)
546 return err;
547 }
548
549 return 0;
550 }
551
552 static int rtl8366s_get_mc_index(struct rtl8366_smi *smi, int port, int *val)
553 {
554 u32 data;
555 int err;
556
557 if (port >= RTL8366S_NUM_PORTS)
558 return -EINVAL;
559
560 err = rtl8366_smi_read_reg(smi, RTL8366S_PORT_VLAN_CTRL_REG(port),
561 &data);
562 if (err)
563 return err;
564
565 *val = (data >> RTL8366S_PORT_VLAN_CTRL_SHIFT(port)) &
566 RTL8366S_PORT_VLAN_CTRL_MASK;
567
568 return 0;
569 }
570
571 static int rtl8366s_set_mc_index(struct rtl8366_smi *smi, int port, int index)
572 {
573 if (port >= RTL8366S_NUM_PORTS || index >= RTL8366S_NUM_VLANS)
574 return -EINVAL;
575
576 return rtl8366_smi_rmwr(smi, RTL8366S_PORT_VLAN_CTRL_REG(port),
577 RTL8366S_PORT_VLAN_CTRL_MASK <<
578 RTL8366S_PORT_VLAN_CTRL_SHIFT(port),
579 (index & RTL8366S_PORT_VLAN_CTRL_MASK) <<
580 RTL8366S_PORT_VLAN_CTRL_SHIFT(port));
581 }
582
583 static int rtl8366s_enable_vlan(struct rtl8366_smi *smi, int enable)
584 {
585 return rtl8366_smi_rmwr(smi, RTL8366S_SGCR, RTL8366S_SGCR_EN_VLAN,
586 (enable) ? RTL8366S_SGCR_EN_VLAN : 0);
587 }
588
589 static int rtl8366s_enable_vlan4k(struct rtl8366_smi *smi, int enable)
590 {
591 return rtl8366_smi_rmwr(smi, RTL8366S_VLAN_TB_CTRL_REG,
592 1, (enable) ? 1 : 0);
593 }
594
595 static int rtl8366s_is_vlan_valid(struct rtl8366_smi *smi, unsigned vlan)
596 {
597 unsigned max = RTL8366S_NUM_VLANS;
598
599 if (smi->vlan4k_enabled)
600 max = RTL8366S_NUM_VIDS - 1;
601
602 if (vlan == 0 || vlan >= max)
603 return 0;
604
605 return 1;
606 }
607
608 static int rtl8366s_sw_reset_mibs(struct switch_dev *dev,
609 const struct switch_attr *attr,
610 struct switch_val *val)
611 {
612 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
613
614 return rtl8366_smi_rmwr(smi, RTL8366S_MIB_CTRL_REG, 0, (1 << 2));
615 }
616
617 static int rtl8366s_sw_get_blinkrate(struct switch_dev *dev,
618 const struct switch_attr *attr,
619 struct switch_val *val)
620 {
621 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
622 u32 data;
623
624 rtl8366_smi_read_reg(smi, RTL8366S_LED_BLINKRATE_REG, &data);
625
626 val->value.i = (data & (RTL8366S_LED_BLINKRATE_MASK));
627
628 return 0;
629 }
630
631 static int rtl8366s_sw_set_blinkrate(struct switch_dev *dev,
632 const struct switch_attr *attr,
633 struct switch_val *val)
634 {
635 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
636
637 if (val->value.i >= 6)
638 return -EINVAL;
639
640 return rtl8366_smi_rmwr(smi, RTL8366S_LED_BLINKRATE_REG,
641 RTL8366S_LED_BLINKRATE_MASK,
642 val->value.i);
643 }
644
645 static int rtl8366s_sw_get_learning_enable(struct switch_dev *dev,
646 const struct switch_attr *attr,
647 struct switch_val *val)
648 {
649 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
650 u32 data;
651
652 rtl8366_smi_read_reg(smi,RTL8366S_SSCR0, &data);
653 val->value.i = !data;
654
655 return 0;
656 }
657
658
659 static int rtl8366s_sw_set_learning_enable(struct switch_dev *dev,
660 const struct switch_attr *attr,
661 struct switch_val *val)
662 {
663 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
664 u32 portmask = 0;
665 int err = 0;
666
667 if (!val->value.i)
668 portmask = RTL8366S_PORT_ALL;
669
670 /* set learning for all ports */
671 REG_WR(smi, RTL8366S_SSCR0, portmask);
672
673 /* set auto ageing for all ports */
674 REG_WR(smi, RTL8366S_SSCR1, portmask);
675
676 return 0;
677 }
678
679
680 static const char *rtl8366s_speed_str(unsigned speed)
681 {
682 switch (speed) {
683 case 0:
684 return "10baseT";
685 case 1:
686 return "100baseT";
687 case 2:
688 return "1000baseT";
689 }
690
691 return "unknown";
692 }
693
694 static int rtl8366s_sw_get_port_link(struct switch_dev *dev,
695 const struct switch_attr *attr,
696 struct switch_val *val)
697 {
698 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
699 u32 len = 0, data = 0;
700
701 if (val->port_vlan >= RTL8366S_NUM_PORTS)
702 return -EINVAL;
703
704 memset(smi->buf, '\0', sizeof(smi->buf));
705 rtl8366_smi_read_reg(smi, RTL8366S_PORT_LINK_STATUS_BASE +
706 (val->port_vlan / 2), &data);
707
708 if (val->port_vlan % 2)
709 data = data >> 8;
710
711 if (data & RTL8366S_PORT_STATUS_LINK_MASK) {
712 len = snprintf(smi->buf, sizeof(smi->buf),
713 "port:%d link:up speed:%s %s-duplex %s%s%s",
714 val->port_vlan,
715 rtl8366s_speed_str(data &
716 RTL8366S_PORT_STATUS_SPEED_MASK),
717 (data & RTL8366S_PORT_STATUS_DUPLEX_MASK) ?
718 "full" : "half",
719 (data & RTL8366S_PORT_STATUS_TXPAUSE_MASK) ?
720 "tx-pause ": "",
721 (data & RTL8366S_PORT_STATUS_RXPAUSE_MASK) ?
722 "rx-pause " : "",
723 (data & RTL8366S_PORT_STATUS_AN_MASK) ?
724 "nway ": "");
725 } else {
726 len = snprintf(smi->buf, sizeof(smi->buf), "port:%d link: down",
727 val->port_vlan);
728 }
729
730 val->value.s = smi->buf;
731 val->len = len;
732
733 return 0;
734 }
735
736 static int rtl8366s_sw_set_port_led(struct switch_dev *dev,
737 const struct switch_attr *attr,
738 struct switch_val *val)
739 {
740 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
741 u32 data;
742 u32 mask;
743 u32 reg;
744
745 if (val->port_vlan >= RTL8366S_NUM_PORTS ||
746 (1 << val->port_vlan) == RTL8366S_PORT_UNKNOWN)
747 return -EINVAL;
748
749 if (val->port_vlan == RTL8366S_PORT_NUM_CPU) {
750 reg = RTL8366S_LED_BLINKRATE_REG;
751 mask = 0xF << 4;
752 data = val->value.i << 4;
753 } else {
754 reg = RTL8366S_LED_CTRL_REG;
755 mask = 0xF << (val->port_vlan * 4),
756 data = val->value.i << (val->port_vlan * 4);
757 }
758
759 return rtl8366_smi_rmwr(smi, reg, mask, data);
760 }
761
762 static int rtl8366s_sw_get_port_led(struct switch_dev *dev,
763 const struct switch_attr *attr,
764 struct switch_val *val)
765 {
766 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
767 u32 data = 0;
768
769 if (val->port_vlan >= RTL8366S_NUM_LEDGROUPS)
770 return -EINVAL;
771
772 rtl8366_smi_read_reg(smi, RTL8366S_LED_CTRL_REG, &data);
773 val->value.i = (data >> (val->port_vlan * 4)) & 0x000F;
774
775 return 0;
776 }
777
778 static int rtl8366s_sw_reset_port_mibs(struct switch_dev *dev,
779 const struct switch_attr *attr,
780 struct switch_val *val)
781 {
782 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
783
784 if (val->port_vlan >= RTL8366S_NUM_PORTS)
785 return -EINVAL;
786
787
788 return rtl8366_smi_rmwr(smi, RTL8366S_MIB_CTRL_REG,
789 0, (1 << (val->port_vlan + 3)));
790 }
791
792 static int rtl8366s_sw_reset_switch(struct switch_dev *dev)
793 {
794 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
795 int err;
796
797 err = rtl8366s_reset_chip(smi);
798 if (err)
799 return err;
800
801 err = rtl8366s_hw_init(smi);
802 if (err)
803 return err;
804
805 return rtl8366_reset_vlan(smi);
806 }
807
808 static struct switch_attr rtl8366s_globals[] = {
809 {
810 .type = SWITCH_TYPE_INT,
811 .name = "enable_learning",
812 .description = "Enable learning, enable aging",
813 .set = rtl8366s_sw_set_learning_enable,
814 .get = rtl8366s_sw_get_learning_enable,
815 .max = 1,
816 }, {
817 .type = SWITCH_TYPE_INT,
818 .name = "enable_vlan",
819 .description = "Enable VLAN mode",
820 .set = rtl8366_sw_set_vlan_enable,
821 .get = rtl8366_sw_get_vlan_enable,
822 .max = 1,
823 .ofs = 1
824 }, {
825 .type = SWITCH_TYPE_INT,
826 .name = "enable_vlan4k",
827 .description = "Enable VLAN 4K mode",
828 .set = rtl8366_sw_set_vlan_enable,
829 .get = rtl8366_sw_get_vlan_enable,
830 .max = 1,
831 .ofs = 2
832 }, {
833 .type = SWITCH_TYPE_NOVAL,
834 .name = "reset_mibs",
835 .description = "Reset all MIB counters",
836 .set = rtl8366s_sw_reset_mibs,
837 }, {
838 .type = SWITCH_TYPE_INT,
839 .name = "blinkrate",
840 .description = "Get/Set LED blinking rate (0 = 43ms, 1 = 84ms,"
841 " 2 = 120ms, 3 = 170ms, 4 = 340ms, 5 = 670ms)",
842 .set = rtl8366s_sw_set_blinkrate,
843 .get = rtl8366s_sw_get_blinkrate,
844 .max = 5
845 },
846 };
847
848 static struct switch_attr rtl8366s_port[] = {
849 {
850 .type = SWITCH_TYPE_STRING,
851 .name = "link",
852 .description = "Get port link information",
853 .max = 1,
854 .set = NULL,
855 .get = rtl8366s_sw_get_port_link,
856 }, {
857 .type = SWITCH_TYPE_NOVAL,
858 .name = "reset_mib",
859 .description = "Reset single port MIB counters",
860 .set = rtl8366s_sw_reset_port_mibs,
861 }, {
862 .type = SWITCH_TYPE_STRING,
863 .name = "mib",
864 .description = "Get MIB counters for port",
865 .max = 33,
866 .set = NULL,
867 .get = rtl8366_sw_get_port_mib,
868 }, {
869 .type = SWITCH_TYPE_INT,
870 .name = "led",
871 .description = "Get/Set port group (0 - 3) led mode (0 - 15)",
872 .max = 15,
873 .set = rtl8366s_sw_set_port_led,
874 .get = rtl8366s_sw_get_port_led,
875 },
876 };
877
878 static struct switch_attr rtl8366s_vlan[] = {
879 {
880 .type = SWITCH_TYPE_STRING,
881 .name = "info",
882 .description = "Get vlan information",
883 .max = 1,
884 .set = NULL,
885 .get = rtl8366_sw_get_vlan_info,
886 },
887 };
888
889 static const struct switch_dev_ops rtl8366_ops = {
890 .attr_global = {
891 .attr = rtl8366s_globals,
892 .n_attr = ARRAY_SIZE(rtl8366s_globals),
893 },
894 .attr_port = {
895 .attr = rtl8366s_port,
896 .n_attr = ARRAY_SIZE(rtl8366s_port),
897 },
898 .attr_vlan = {
899 .attr = rtl8366s_vlan,
900 .n_attr = ARRAY_SIZE(rtl8366s_vlan),
901 },
902
903 .get_vlan_ports = rtl8366_sw_get_vlan_ports,
904 .set_vlan_ports = rtl8366_sw_set_vlan_ports,
905 .get_port_pvid = rtl8366_sw_get_port_pvid,
906 .set_port_pvid = rtl8366_sw_set_port_pvid,
907 .reset_switch = rtl8366s_sw_reset_switch,
908 };
909
910 static int rtl8366s_switch_init(struct rtl8366_smi *smi)
911 {
912 struct switch_dev *dev = &smi->sw_dev;
913 int err;
914
915 dev->name = "RTL8366S";
916 dev->cpu_port = RTL8366S_PORT_NUM_CPU;
917 dev->ports = RTL8366S_NUM_PORTS;
918 dev->vlans = RTL8366S_NUM_VIDS;
919 dev->ops = &rtl8366_ops;
920 dev->devname = dev_name(smi->parent);
921
922 err = register_switch(dev, NULL);
923 if (err)
924 dev_err(smi->parent, "switch registration failed\n");
925
926 return err;
927 }
928
929 static void rtl8366s_switch_cleanup(struct rtl8366_smi *smi)
930 {
931 unregister_switch(&smi->sw_dev);
932 }
933
934 static int rtl8366s_mii_read(struct mii_bus *bus, int addr, int reg)
935 {
936 struct rtl8366_smi *smi = bus->priv;
937 u32 val = 0;
938 int err;
939
940 err = rtl8366s_read_phy_reg(smi, addr, 0, reg, &val);
941 if (err)
942 return 0xffff;
943
944 return val;
945 }
946
947 static int rtl8366s_mii_write(struct mii_bus *bus, int addr, int reg, u16 val)
948 {
949 struct rtl8366_smi *smi = bus->priv;
950 u32 t;
951 int err;
952
953 err = rtl8366s_write_phy_reg(smi, addr, 0, reg, val);
954 /* flush write */
955 (void) rtl8366s_read_phy_reg(smi, addr, 0, reg, &t);
956
957 return err;
958 }
959
960 static int rtl8366s_mii_bus_match(struct mii_bus *bus)
961 {
962 return (bus->read == rtl8366s_mii_read &&
963 bus->write == rtl8366s_mii_write);
964 }
965
966 static int rtl8366s_setup(struct rtl8366_smi *smi)
967 {
968 int ret;
969
970 ret = rtl8366s_reset_chip(smi);
971 if (ret)
972 return ret;
973
974 ret = rtl8366s_hw_init(smi);
975 return ret;
976 }
977
978 static int rtl8366s_detect(struct rtl8366_smi *smi)
979 {
980 u32 chip_id = 0;
981 u32 chip_ver = 0;
982 int ret;
983
984 ret = rtl8366_smi_read_reg(smi, RTL8366S_CHIP_ID_REG, &chip_id);
985 if (ret) {
986 dev_err(smi->parent, "unable to read chip id\n");
987 return ret;
988 }
989
990 switch (chip_id) {
991 case RTL8366S_CHIP_ID_8366:
992 break;
993 default:
994 dev_err(smi->parent, "unknown chip id (%04x)\n", chip_id);
995 return -ENODEV;
996 }
997
998 ret = rtl8366_smi_read_reg(smi, RTL8366S_CHIP_VERSION_CTRL_REG,
999 &chip_ver);
1000 if (ret) {
1001 dev_err(smi->parent, "unable to read chip version\n");
1002 return ret;
1003 }
1004
1005 dev_info(smi->parent, "RTL%04x ver. %u chip found\n",
1006 chip_id, chip_ver & RTL8366S_CHIP_VERSION_MASK);
1007
1008 return 0;
1009 }
1010
1011 static struct rtl8366_smi_ops rtl8366s_smi_ops = {
1012 .detect = rtl8366s_detect,
1013 .setup = rtl8366s_setup,
1014
1015 .mii_read = rtl8366s_mii_read,
1016 .mii_write = rtl8366s_mii_write,
1017
1018 .get_vlan_mc = rtl8366s_get_vlan_mc,
1019 .set_vlan_mc = rtl8366s_set_vlan_mc,
1020 .get_vlan_4k = rtl8366s_get_vlan_4k,
1021 .set_vlan_4k = rtl8366s_set_vlan_4k,
1022 .get_mc_index = rtl8366s_get_mc_index,
1023 .set_mc_index = rtl8366s_set_mc_index,
1024 .get_mib_counter = rtl8366_get_mib_counter,
1025 .is_vlan_valid = rtl8366s_is_vlan_valid,
1026 .enable_vlan = rtl8366s_enable_vlan,
1027 .enable_vlan4k = rtl8366s_enable_vlan4k,
1028 };
1029
1030 static int __init rtl8366s_probe(struct platform_device *pdev)
1031 {
1032 static int rtl8366_smi_version_printed;
1033 struct rtl8366s_platform_data *pdata;
1034 struct rtl8366_smi *smi;
1035 int err;
1036
1037 if (!rtl8366_smi_version_printed++)
1038 printk(KERN_NOTICE RTL8366S_DRIVER_DESC
1039 " version " RTL8366S_DRIVER_VER"\n");
1040
1041 pdata = pdev->dev.platform_data;
1042 if (!pdata) {
1043 dev_err(&pdev->dev, "no platform data specified\n");
1044 err = -EINVAL;
1045 goto err_out;
1046 }
1047
1048 smi = rtl8366_smi_alloc(&pdev->dev);
1049 if (!smi) {
1050 err = -ENOMEM;
1051 goto err_out;
1052 }
1053
1054 smi->gpio_sda = pdata->gpio_sda;
1055 smi->gpio_sck = pdata->gpio_sck;
1056 smi->ops = &rtl8366s_smi_ops;
1057 smi->cpu_port = RTL8366S_PORT_NUM_CPU;
1058 smi->num_ports = RTL8366S_NUM_PORTS;
1059 smi->num_vlan_mc = RTL8366S_NUM_VLANS;
1060 smi->mib_counters = rtl8366s_mib_counters;
1061 smi->num_mib_counters = ARRAY_SIZE(rtl8366s_mib_counters);
1062
1063 err = rtl8366_smi_init(smi);
1064 if (err)
1065 goto err_free_smi;
1066
1067 platform_set_drvdata(pdev, smi);
1068
1069 err = rtl8366s_switch_init(smi);
1070 if (err)
1071 goto err_clear_drvdata;
1072
1073 return 0;
1074
1075 err_clear_drvdata:
1076 platform_set_drvdata(pdev, NULL);
1077 rtl8366_smi_cleanup(smi);
1078 err_free_smi:
1079 kfree(smi);
1080 err_out:
1081 return err;
1082 }
1083
1084 static int rtl8366s_phy_config_init(struct phy_device *phydev)
1085 {
1086 if (!rtl8366s_mii_bus_match(phydev->bus))
1087 return -EINVAL;
1088
1089 return 0;
1090 }
1091
1092 static int rtl8366s_phy_config_aneg(struct phy_device *phydev)
1093 {
1094 /* phy 4 might be connected to a second mac, allow aneg config */
1095 if (phydev->addr == RTL8366S_PHY_WAN)
1096 return genphy_config_aneg(phydev);
1097
1098 return 0;
1099 }
1100
1101 static struct phy_driver rtl8366s_phy_driver = {
1102 .phy_id = 0x001cc960,
1103 .name = "Realtek RTL8366S",
1104 .phy_id_mask = 0x1ffffff0,
1105 .features = PHY_GBIT_FEATURES,
1106 .config_aneg = rtl8366s_phy_config_aneg,
1107 .config_init = rtl8366s_phy_config_init,
1108 .read_status = genphy_read_status,
1109 .driver = {
1110 .owner = THIS_MODULE,
1111 },
1112 };
1113
1114 static int __devexit rtl8366s_remove(struct platform_device *pdev)
1115 {
1116 struct rtl8366_smi *smi = platform_get_drvdata(pdev);
1117
1118 if (smi) {
1119 rtl8366s_switch_cleanup(smi);
1120 platform_set_drvdata(pdev, NULL);
1121 rtl8366_smi_cleanup(smi);
1122 kfree(smi);
1123 }
1124
1125 return 0;
1126 }
1127
1128 static struct platform_driver rtl8366s_driver = {
1129 .driver = {
1130 .name = RTL8366S_DRIVER_NAME,
1131 .owner = THIS_MODULE,
1132 },
1133 .probe = rtl8366s_probe,
1134 .remove = __devexit_p(rtl8366s_remove),
1135 };
1136
1137 static int __init rtl8366s_module_init(void)
1138 {
1139 int ret;
1140 ret = platform_driver_register(&rtl8366s_driver);
1141 if (ret)
1142 return ret;
1143
1144 ret = phy_driver_register(&rtl8366s_phy_driver);
1145 if (ret)
1146 goto err_platform_unregister;
1147
1148 return 0;
1149
1150 err_platform_unregister:
1151 platform_driver_unregister(&rtl8366s_driver);
1152 return ret;
1153 }
1154 module_init(rtl8366s_module_init);
1155
1156 static void __exit rtl8366s_module_exit(void)
1157 {
1158 phy_driver_unregister(&rtl8366s_phy_driver);
1159 platform_driver_unregister(&rtl8366s_driver);
1160 }
1161 module_exit(rtl8366s_module_exit);
1162
1163 MODULE_DESCRIPTION(RTL8366S_DRIVER_DESC);
1164 MODULE_VERSION(RTL8366S_DRIVER_VER);
1165 MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
1166 MODULE_AUTHOR("Antti Seppälä <a.seppala@gmail.com>");
1167 MODULE_LICENSE("GPL v2");
1168 MODULE_ALIAS("platform:" RTL8366S_DRIVER_NAME);