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[openwrt.git] / target / linux / generic / files / drivers / net / phy / rtl8366rb.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/rtl8366rb.h>
19
20 #include "rtl8366_smi.h"
21
22 #define RTL8366RB_DRIVER_DESC "Realtek RTL8366RB ethernet switch driver"
23 #define RTL8366RB_DRIVER_VER "0.2.2"
24
25 #define RTL8366RB_PHY_NO_MAX 4
26 #define RTL8366RB_PHY_PAGE_MAX 7
27 #define RTL8366RB_PHY_ADDR_MAX 31
28
29 /* Switch Global Configuration register */
30 #define RTL8366RB_SGCR 0x0000
31 #define RTL8366RB_SGCR_EN_BC_STORM_CTRL BIT(0)
32 #define RTL8366RB_SGCR_MAX_LENGTH(_x) (_x << 4)
33 #define RTL8366RB_SGCR_MAX_LENGTH_MASK RTL8366RB_SGCR_MAX_LENGTH(0x3)
34 #define RTL8366RB_SGCR_MAX_LENGTH_1522 RTL8366RB_SGCR_MAX_LENGTH(0x0)
35 #define RTL8366RB_SGCR_MAX_LENGTH_1536 RTL8366RB_SGCR_MAX_LENGTH(0x1)
36 #define RTL8366RB_SGCR_MAX_LENGTH_1552 RTL8366RB_SGCR_MAX_LENGTH(0x2)
37 #define RTL8366RB_SGCR_MAX_LENGTH_9216 RTL8366RB_SGCR_MAX_LENGTH(0x3)
38 #define RTL8366RB_SGCR_EN_VLAN BIT(13)
39 #define RTL8366RB_SGCR_EN_VLAN_4KTB BIT(14)
40
41 /* Port Enable Control register */
42 #define RTL8366RB_PECR 0x0001
43
44 /* Switch Security Control registers */
45 #define RTL8366RB_SSCR0 0x0002
46 #define RTL8366RB_SSCR1 0x0003
47 #define RTL8366RB_SSCR2 0x0004
48 #define RTL8366RB_SSCR2_DROP_UNKNOWN_DA BIT(0)
49
50 #define RTL8366RB_RESET_CTRL_REG 0x0100
51 #define RTL8366RB_CHIP_CTRL_RESET_HW 1
52 #define RTL8366RB_CHIP_CTRL_RESET_SW (1 << 1)
53
54 #define RTL8366RB_CHIP_VERSION_CTRL_REG 0x050A
55 #define RTL8366RB_CHIP_VERSION_MASK 0xf
56 #define RTL8366RB_CHIP_ID_REG 0x0509
57 #define RTL8366RB_CHIP_ID_8366 0x5937
58
59 /* PHY registers control */
60 #define RTL8366RB_PHY_ACCESS_CTRL_REG 0x8000
61 #define RTL8366RB_PHY_ACCESS_DATA_REG 0x8002
62
63 #define RTL8366RB_PHY_CTRL_READ 1
64 #define RTL8366RB_PHY_CTRL_WRITE 0
65
66 #define RTL8366RB_PHY_REG_MASK 0x1f
67 #define RTL8366RB_PHY_PAGE_OFFSET 5
68 #define RTL8366RB_PHY_PAGE_MASK (0xf << 5)
69 #define RTL8366RB_PHY_NO_OFFSET 9
70 #define RTL8366RB_PHY_NO_MASK (0x1f << 9)
71
72 #define RTL8366RB_VLAN_INGRESS_CTRL2_REG 0x037f
73
74 /* LED control registers */
75 #define RTL8366RB_LED_BLINKRATE_REG 0x0430
76 #define RTL8366RB_LED_BLINKRATE_BIT 0
77 #define RTL8366RB_LED_BLINKRATE_MASK 0x0007
78
79 #define RTL8366RB_LED_CTRL_REG 0x0431
80 #define RTL8366RB_LED_0_1_CTRL_REG 0x0432
81 #define RTL8366RB_LED_2_3_CTRL_REG 0x0433
82
83 #define RTL8366RB_MIB_COUNT 33
84 #define RTL8366RB_GLOBAL_MIB_COUNT 1
85 #define RTL8366RB_MIB_COUNTER_PORT_OFFSET 0x0050
86 #define RTL8366RB_MIB_COUNTER_BASE 0x1000
87 #define RTL8366RB_MIB_CTRL_REG 0x13F0
88 #define RTL8366RB_MIB_CTRL_USER_MASK 0x0FFC
89 #define RTL8366RB_MIB_CTRL_BUSY_MASK BIT(0)
90 #define RTL8366RB_MIB_CTRL_RESET_MASK BIT(1)
91 #define RTL8366RB_MIB_CTRL_PORT_RESET(_p) BIT(2 + (_p))
92 #define RTL8366RB_MIB_CTRL_GLOBAL_RESET BIT(11)
93
94 #define RTL8366RB_PORT_VLAN_CTRL_BASE 0x0063
95 #define RTL8366RB_PORT_VLAN_CTRL_REG(_p) \
96 (RTL8366RB_PORT_VLAN_CTRL_BASE + (_p) / 4)
97 #define RTL8366RB_PORT_VLAN_CTRL_MASK 0xf
98 #define RTL8366RB_PORT_VLAN_CTRL_SHIFT(_p) (4 * ((_p) % 4))
99
100
101 #define RTL8366RB_VLAN_TABLE_READ_BASE 0x018C
102 #define RTL8366RB_VLAN_TABLE_WRITE_BASE 0x0185
103
104
105 #define RTL8366RB_TABLE_ACCESS_CTRL_REG 0x0180
106 #define RTL8366RB_TABLE_VLAN_READ_CTRL 0x0E01
107 #define RTL8366RB_TABLE_VLAN_WRITE_CTRL 0x0F01
108
109 #define RTL8366RB_VLAN_MC_BASE(_x) (0x0020 + (_x) * 3)
110
111
112 #define RTL8366RB_PORT_LINK_STATUS_BASE 0x0014
113 #define RTL8366RB_PORT_STATUS_SPEED_MASK 0x0003
114 #define RTL8366RB_PORT_STATUS_DUPLEX_MASK 0x0004
115 #define RTL8366RB_PORT_STATUS_LINK_MASK 0x0010
116 #define RTL8366RB_PORT_STATUS_TXPAUSE_MASK 0x0020
117 #define RTL8366RB_PORT_STATUS_RXPAUSE_MASK 0x0040
118 #define RTL8366RB_PORT_STATUS_AN_MASK 0x0080
119
120
121 #define RTL8366RB_PORT_NUM_CPU 5
122 #define RTL8366RB_NUM_PORTS 6
123 #define RTL8366RB_NUM_VLANS 16
124 #define RTL8366RB_NUM_LEDGROUPS 4
125 #define RTL8366RB_NUM_VIDS 4096
126 #define RTL8366RB_PRIORITYMAX 7
127 #define RTL8366RB_FIDMAX 7
128
129
130 #define RTL8366RB_PORT_1 (1 << 0) /* In userspace port 0 */
131 #define RTL8366RB_PORT_2 (1 << 1) /* In userspace port 1 */
132 #define RTL8366RB_PORT_3 (1 << 2) /* In userspace port 2 */
133 #define RTL8366RB_PORT_4 (1 << 3) /* In userspace port 3 */
134 #define RTL8366RB_PORT_5 (1 << 4) /* In userspace port 4 */
135
136 #define RTL8366RB_PORT_CPU (1 << 5) /* CPU port */
137
138 #define RTL8366RB_PORT_ALL (RTL8366RB_PORT_1 | \
139 RTL8366RB_PORT_2 | \
140 RTL8366RB_PORT_3 | \
141 RTL8366RB_PORT_4 | \
142 RTL8366RB_PORT_5 | \
143 RTL8366RB_PORT_CPU)
144
145 #define RTL8366RB_PORT_ALL_BUT_CPU (RTL8366RB_PORT_1 | \
146 RTL8366RB_PORT_2 | \
147 RTL8366RB_PORT_3 | \
148 RTL8366RB_PORT_4 | \
149 RTL8366RB_PORT_5)
150
151 #define RTL8366RB_PORT_ALL_EXTERNAL (RTL8366RB_PORT_1 | \
152 RTL8366RB_PORT_2 | \
153 RTL8366RB_PORT_3 | \
154 RTL8366RB_PORT_4)
155
156 #define RTL8366RB_PORT_ALL_INTERNAL RTL8366RB_PORT_CPU
157
158 #define RTL8366RB_VLAN_VID_MASK 0xfff
159 #define RTL8366RB_VLAN_PRIORITY_SHIFT 12
160 #define RTL8366RB_VLAN_PRIORITY_MASK 0x7
161 #define RTL8366RB_VLAN_UNTAG_SHIFT 8
162 #define RTL8366RB_VLAN_UNTAG_MASK 0xff
163 #define RTL8366RB_VLAN_MEMBER_MASK 0xff
164 #define RTL8366RB_VLAN_FID_MASK 0x7
165
166 static struct rtl8366_mib_counter rtl8366rb_mib_counters[] = {
167 { 0, 0, 4, "IfInOctets" },
168 { 0, 4, 4, "EtherStatsOctets" },
169 { 0, 8, 2, "EtherStatsUnderSizePkts" },
170 { 0, 10, 2, "EtherFragments" },
171 { 0, 12, 2, "EtherStatsPkts64Octets" },
172 { 0, 14, 2, "EtherStatsPkts65to127Octets" },
173 { 0, 16, 2, "EtherStatsPkts128to255Octets" },
174 { 0, 18, 2, "EtherStatsPkts256to511Octets" },
175 { 0, 20, 2, "EtherStatsPkts512to1023Octets" },
176 { 0, 22, 2, "EtherStatsPkts1024to1518Octets" },
177 { 0, 24, 2, "EtherOversizeStats" },
178 { 0, 26, 2, "EtherStatsJabbers" },
179 { 0, 28, 2, "IfInUcastPkts" },
180 { 0, 30, 2, "EtherStatsMulticastPkts" },
181 { 0, 32, 2, "EtherStatsBroadcastPkts" },
182 { 0, 34, 2, "EtherStatsDropEvents" },
183 { 0, 36, 2, "Dot3StatsFCSErrors" },
184 { 0, 38, 2, "Dot3StatsSymbolErrors" },
185 { 0, 40, 2, "Dot3InPauseFrames" },
186 { 0, 42, 2, "Dot3ControlInUnknownOpcodes" },
187 { 0, 44, 4, "IfOutOctets" },
188 { 0, 48, 2, "Dot3StatsSingleCollisionFrames" },
189 { 0, 50, 2, "Dot3StatMultipleCollisionFrames" },
190 { 0, 52, 2, "Dot3sDeferredTransmissions" },
191 { 0, 54, 2, "Dot3StatsLateCollisions" },
192 { 0, 56, 2, "EtherStatsCollisions" },
193 { 0, 58, 2, "Dot3StatsExcessiveCollisions" },
194 { 0, 60, 2, "Dot3OutPauseFrames" },
195 { 0, 62, 2, "Dot1dBasePortDelayExceededDiscards" },
196 { 0, 64, 2, "Dot1dTpPortInDiscards" },
197 { 0, 66, 2, "IfOutUcastPkts" },
198 { 0, 68, 2, "IfOutMulticastPkts" },
199 { 0, 70, 2, "IfOutBroadcastPkts" },
200 };
201
202 #define REG_WR(_smi, _reg, _val) \
203 do { \
204 err = rtl8366_smi_write_reg(_smi, _reg, _val); \
205 if (err) \
206 return err; \
207 } while (0)
208
209 #define REG_RMW(_smi, _reg, _mask, _val) \
210 do { \
211 err = rtl8366_smi_rmwr(_smi, _reg, _mask, _val); \
212 if (err) \
213 return err; \
214 } while (0)
215
216 static int rtl8366rb_reset_chip(struct rtl8366_smi *smi)
217 {
218 int timeout = 10;
219 u32 data;
220
221 rtl8366_smi_write_reg(smi, RTL8366RB_RESET_CTRL_REG,
222 RTL8366RB_CHIP_CTRL_RESET_HW);
223 do {
224 msleep(1);
225 if (rtl8366_smi_read_reg(smi, RTL8366RB_RESET_CTRL_REG, &data))
226 return -EIO;
227
228 if (!(data & RTL8366RB_CHIP_CTRL_RESET_HW))
229 break;
230 } while (--timeout);
231
232 if (!timeout) {
233 printk("Timeout waiting for the switch to reset\n");
234 return -EIO;
235 }
236
237 return 0;
238 }
239
240 static int rtl8366rb_hw_init(struct rtl8366_smi *smi)
241 {
242 int err;
243
244 /* set maximum packet length to 1536 bytes */
245 REG_RMW(smi, RTL8366RB_SGCR, RTL8366RB_SGCR_MAX_LENGTH_MASK,
246 RTL8366RB_SGCR_MAX_LENGTH_1536);
247
248 /* enable all ports */
249 REG_WR(smi, RTL8366RB_PECR, 0);
250
251 /* enable learning for all ports */
252 REG_WR(smi, RTL8366RB_SSCR0, 0);
253
254 /* enable auto ageing for all ports */
255 REG_WR(smi, RTL8366RB_SSCR1, 0);
256
257 /*
258 * discard VLAN tagged packets if the port is not a member of
259 * the VLAN with which the packets is associated.
260 */
261 REG_WR(smi, RTL8366RB_VLAN_INGRESS_CTRL2_REG, RTL8366RB_PORT_ALL);
262
263 /* don't drop packets whose DA has not been learned */
264 REG_RMW(smi, RTL8366RB_SSCR2, RTL8366RB_SSCR2_DROP_UNKNOWN_DA, 0);
265
266 return 0;
267 }
268
269 static int rtl8366rb_read_phy_reg(struct rtl8366_smi *smi,
270 u32 phy_no, u32 page, u32 addr, u32 *data)
271 {
272 u32 reg;
273 int ret;
274
275 if (phy_no > RTL8366RB_PHY_NO_MAX)
276 return -EINVAL;
277
278 if (page > RTL8366RB_PHY_PAGE_MAX)
279 return -EINVAL;
280
281 if (addr > RTL8366RB_PHY_ADDR_MAX)
282 return -EINVAL;
283
284 ret = rtl8366_smi_write_reg(smi, RTL8366RB_PHY_ACCESS_CTRL_REG,
285 RTL8366RB_PHY_CTRL_READ);
286 if (ret)
287 return ret;
288
289 reg = 0x8000 | (1 << (phy_no + RTL8366RB_PHY_NO_OFFSET)) |
290 ((page << RTL8366RB_PHY_PAGE_OFFSET) & RTL8366RB_PHY_PAGE_MASK) |
291 (addr & RTL8366RB_PHY_REG_MASK);
292
293 ret = rtl8366_smi_write_reg(smi, reg, 0);
294 if (ret)
295 return ret;
296
297 ret = rtl8366_smi_read_reg(smi, RTL8366RB_PHY_ACCESS_DATA_REG, data);
298 if (ret)
299 return ret;
300
301 return 0;
302 }
303
304 static int rtl8366rb_write_phy_reg(struct rtl8366_smi *smi,
305 u32 phy_no, u32 page, u32 addr, u32 data)
306 {
307 u32 reg;
308 int ret;
309
310 if (phy_no > RTL8366RB_PHY_NO_MAX)
311 return -EINVAL;
312
313 if (page > RTL8366RB_PHY_PAGE_MAX)
314 return -EINVAL;
315
316 if (addr > RTL8366RB_PHY_ADDR_MAX)
317 return -EINVAL;
318
319 ret = rtl8366_smi_write_reg(smi, RTL8366RB_PHY_ACCESS_CTRL_REG,
320 RTL8366RB_PHY_CTRL_WRITE);
321 if (ret)
322 return ret;
323
324 reg = 0x8000 | (1 << (phy_no + RTL8366RB_PHY_NO_OFFSET)) |
325 ((page << RTL8366RB_PHY_PAGE_OFFSET) & RTL8366RB_PHY_PAGE_MASK) |
326 (addr & RTL8366RB_PHY_REG_MASK);
327
328 ret = rtl8366_smi_write_reg(smi, reg, data);
329 if (ret)
330 return ret;
331
332 return 0;
333 }
334
335 static int rtl8366rb_get_mib_counter(struct rtl8366_smi *smi, int counter,
336 int port, unsigned long long *val)
337 {
338 int i;
339 int err;
340 u32 addr, data;
341 u64 mibvalue;
342
343 if (port > RTL8366RB_NUM_PORTS || counter >= RTL8366RB_MIB_COUNT)
344 return -EINVAL;
345
346 addr = RTL8366RB_MIB_COUNTER_BASE +
347 RTL8366RB_MIB_COUNTER_PORT_OFFSET * (port) +
348 rtl8366rb_mib_counters[counter].offset;
349
350 /*
351 * Writing access counter address first
352 * then ASIC will prepare 64bits counter wait for being retrived
353 */
354 data = 0; /* writing data will be discard by ASIC */
355 err = rtl8366_smi_write_reg(smi, addr, data);
356 if (err)
357 return err;
358
359 /* read MIB control register */
360 err = rtl8366_smi_read_reg(smi, RTL8366RB_MIB_CTRL_REG, &data);
361 if (err)
362 return err;
363
364 if (data & RTL8366RB_MIB_CTRL_BUSY_MASK)
365 return -EBUSY;
366
367 if (data & RTL8366RB_MIB_CTRL_RESET_MASK)
368 return -EIO;
369
370 mibvalue = 0;
371 for (i = rtl8366rb_mib_counters[counter].length; i > 0; i--) {
372 err = rtl8366_smi_read_reg(smi, addr + (i - 1), &data);
373 if (err)
374 return err;
375
376 mibvalue = (mibvalue << 16) | (data & 0xFFFF);
377 }
378
379 *val = mibvalue;
380 return 0;
381 }
382
383 static int rtl8366rb_get_vlan_4k(struct rtl8366_smi *smi, u32 vid,
384 struct rtl8366_vlan_4k *vlan4k)
385 {
386 u32 data[3];
387 int err;
388 int i;
389
390 memset(vlan4k, '\0', sizeof(struct rtl8366_vlan_4k));
391
392 if (vid >= RTL8366RB_NUM_VIDS)
393 return -EINVAL;
394
395 /* write VID */
396 err = rtl8366_smi_write_reg(smi, RTL8366RB_VLAN_TABLE_WRITE_BASE,
397 vid & RTL8366RB_VLAN_VID_MASK);
398 if (err)
399 return err;
400
401 /* write table access control word */
402 err = rtl8366_smi_write_reg(smi, RTL8366RB_TABLE_ACCESS_CTRL_REG,
403 RTL8366RB_TABLE_VLAN_READ_CTRL);
404 if (err)
405 return err;
406
407 for (i = 0; i < 3; i++) {
408 err = rtl8366_smi_read_reg(smi,
409 RTL8366RB_VLAN_TABLE_READ_BASE + i,
410 &data[i]);
411 if (err)
412 return err;
413 }
414
415 vlan4k->vid = vid;
416 vlan4k->untag = (data[1] >> RTL8366RB_VLAN_UNTAG_SHIFT) &
417 RTL8366RB_VLAN_UNTAG_MASK;
418 vlan4k->member = data[1] & RTL8366RB_VLAN_MEMBER_MASK;
419 vlan4k->fid = data[2] & RTL8366RB_VLAN_FID_MASK;
420
421 return 0;
422 }
423
424 static int rtl8366rb_set_vlan_4k(struct rtl8366_smi *smi,
425 const struct rtl8366_vlan_4k *vlan4k)
426 {
427 u32 data[3];
428 int err;
429 int i;
430
431 if (vlan4k->vid >= RTL8366RB_NUM_VIDS ||
432 vlan4k->member > RTL8366RB_PORT_ALL ||
433 vlan4k->untag > RTL8366RB_PORT_ALL ||
434 vlan4k->fid > RTL8366RB_FIDMAX)
435 return -EINVAL;
436
437 data[0] = vlan4k->vid & RTL8366RB_VLAN_VID_MASK;
438 data[1] = (vlan4k->member & RTL8366RB_VLAN_MEMBER_MASK) |
439 ((vlan4k->untag & RTL8366RB_VLAN_UNTAG_MASK) <<
440 RTL8366RB_VLAN_UNTAG_SHIFT);
441 data[2] = vlan4k->fid & RTL8366RB_VLAN_FID_MASK;
442
443 for (i = 0; i < 3; i++) {
444 err = rtl8366_smi_write_reg(smi,
445 RTL8366RB_VLAN_TABLE_WRITE_BASE + i,
446 data[i]);
447 if (err)
448 return err;
449 }
450
451 /* write table access control word */
452 err = rtl8366_smi_write_reg(smi, RTL8366RB_TABLE_ACCESS_CTRL_REG,
453 RTL8366RB_TABLE_VLAN_WRITE_CTRL);
454
455 return err;
456 }
457
458 static int rtl8366rb_get_vlan_mc(struct rtl8366_smi *smi, u32 index,
459 struct rtl8366_vlan_mc *vlanmc)
460 {
461 u32 data[3];
462 int err;
463 int i;
464
465 memset(vlanmc, '\0', sizeof(struct rtl8366_vlan_mc));
466
467 if (index >= RTL8366RB_NUM_VLANS)
468 return -EINVAL;
469
470 for (i = 0; i < 3; i++) {
471 err = rtl8366_smi_read_reg(smi,
472 RTL8366RB_VLAN_MC_BASE(index) + i,
473 &data[i]);
474 if (err)
475 return err;
476 }
477
478 vlanmc->vid = data[0] & RTL8366RB_VLAN_VID_MASK;
479 vlanmc->priority = (data[0] >> RTL8366RB_VLAN_PRIORITY_SHIFT) &
480 RTL8366RB_VLAN_PRIORITY_MASK;
481 vlanmc->untag = (data[1] >> RTL8366RB_VLAN_UNTAG_SHIFT) &
482 RTL8366RB_VLAN_UNTAG_MASK;
483 vlanmc->member = data[1] & RTL8366RB_VLAN_MEMBER_MASK;
484 vlanmc->fid = data[2] & RTL8366RB_VLAN_FID_MASK;
485
486 return 0;
487 }
488
489 static int rtl8366rb_set_vlan_mc(struct rtl8366_smi *smi, u32 index,
490 const struct rtl8366_vlan_mc *vlanmc)
491 {
492 u32 data[3];
493 int err;
494 int i;
495
496 if (index >= RTL8366RB_NUM_VLANS ||
497 vlanmc->vid >= RTL8366RB_NUM_VIDS ||
498 vlanmc->priority > RTL8366RB_PRIORITYMAX ||
499 vlanmc->member > RTL8366RB_PORT_ALL ||
500 vlanmc->untag > RTL8366RB_PORT_ALL ||
501 vlanmc->fid > RTL8366RB_FIDMAX)
502 return -EINVAL;
503
504 data[0] = (vlanmc->vid & RTL8366RB_VLAN_VID_MASK) |
505 ((vlanmc->priority & RTL8366RB_VLAN_PRIORITY_MASK) <<
506 RTL8366RB_VLAN_PRIORITY_SHIFT);
507 data[1] = (vlanmc->member & RTL8366RB_VLAN_MEMBER_MASK) |
508 ((vlanmc->untag & RTL8366RB_VLAN_UNTAG_MASK) <<
509 RTL8366RB_VLAN_UNTAG_SHIFT);
510 data[2] = vlanmc->fid & RTL8366RB_VLAN_FID_MASK;
511
512 for (i = 0; i < 3; i++) {
513 err = rtl8366_smi_write_reg(smi,
514 RTL8366RB_VLAN_MC_BASE(index) + i,
515 data[i]);
516 if (err)
517 return err;
518 }
519
520 return 0;
521 }
522
523 static int rtl8366rb_get_mc_index(struct rtl8366_smi *smi, int port, int *val)
524 {
525 u32 data;
526 int err;
527
528 if (port >= RTL8366RB_NUM_PORTS)
529 return -EINVAL;
530
531 err = rtl8366_smi_read_reg(smi, RTL8366RB_PORT_VLAN_CTRL_REG(port),
532 &data);
533 if (err)
534 return err;
535
536 *val = (data >> RTL8366RB_PORT_VLAN_CTRL_SHIFT(port)) &
537 RTL8366RB_PORT_VLAN_CTRL_MASK;
538
539 return 0;
540
541 }
542
543 static int rtl8366rb_set_mc_index(struct rtl8366_smi *smi, int port, int index)
544 {
545 if (port >= RTL8366RB_NUM_PORTS || index >= RTL8366RB_NUM_VLANS)
546 return -EINVAL;
547
548 return rtl8366_smi_rmwr(smi, RTL8366RB_PORT_VLAN_CTRL_REG(port),
549 RTL8366RB_PORT_VLAN_CTRL_MASK <<
550 RTL8366RB_PORT_VLAN_CTRL_SHIFT(port),
551 (index & RTL8366RB_PORT_VLAN_CTRL_MASK) <<
552 RTL8366RB_PORT_VLAN_CTRL_SHIFT(port));
553 }
554
555 static int rtl8366rb_is_vlan_valid(struct rtl8366_smi *smi, unsigned vlan)
556 {
557 unsigned max = RTL8366RB_NUM_VLANS;
558
559 if (smi->vlan4k_enabled)
560 max = RTL8366RB_NUM_VIDS - 1;
561
562 if (vlan == 0 || vlan >= max)
563 return 0;
564
565 return 1;
566 }
567
568 static int rtl8366rb_enable_vlan(struct rtl8366_smi *smi, int enable)
569 {
570 return rtl8366_smi_rmwr(smi, RTL8366RB_SGCR, RTL8366RB_SGCR_EN_VLAN,
571 (enable) ? RTL8366RB_SGCR_EN_VLAN : 0);
572 }
573
574 static int rtl8366rb_enable_vlan4k(struct rtl8366_smi *smi, int enable)
575 {
576 return rtl8366_smi_rmwr(smi, RTL8366RB_SGCR,
577 RTL8366RB_SGCR_EN_VLAN_4KTB,
578 (enable) ? RTL8366RB_SGCR_EN_VLAN_4KTB : 0);
579 }
580
581 static int rtl8366rb_sw_reset_mibs(struct switch_dev *dev,
582 const struct switch_attr *attr,
583 struct switch_val *val)
584 {
585 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
586
587 return rtl8366_smi_rmwr(smi, RTL8366RB_MIB_CTRL_REG, 0,
588 RTL8366RB_MIB_CTRL_GLOBAL_RESET);
589 }
590
591 static int rtl8366rb_sw_get_blinkrate(struct switch_dev *dev,
592 const struct switch_attr *attr,
593 struct switch_val *val)
594 {
595 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
596 u32 data;
597
598 rtl8366_smi_read_reg(smi, RTL8366RB_LED_BLINKRATE_REG, &data);
599
600 val->value.i = (data & (RTL8366RB_LED_BLINKRATE_MASK));
601
602 return 0;
603 }
604
605 static int rtl8366rb_sw_set_blinkrate(struct switch_dev *dev,
606 const struct switch_attr *attr,
607 struct switch_val *val)
608 {
609 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
610
611 if (val->value.i >= 6)
612 return -EINVAL;
613
614 return rtl8366_smi_rmwr(smi, RTL8366RB_LED_BLINKRATE_REG,
615 RTL8366RB_LED_BLINKRATE_MASK,
616 val->value.i);
617 }
618
619 static int rtl8366rb_sw_get_learning_enable(struct switch_dev *dev,
620 const struct switch_attr *attr,
621 struct switch_val *val)
622 {
623 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
624 u32 data;
625
626 rtl8366_smi_read_reg(smi, RTL8366RB_SSCR0, &data);
627 val->value.i = !data;
628
629 return 0;
630 }
631
632
633 static int rtl8366rb_sw_set_learning_enable(struct switch_dev *dev,
634 const struct switch_attr *attr,
635 struct switch_val *val)
636 {
637 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
638 u32 portmask = 0;
639 int err = 0;
640
641 if (!val->value.i)
642 portmask = RTL8366RB_PORT_ALL;
643
644 /* set learning for all ports */
645 REG_WR(smi, RTL8366RB_SSCR0, portmask);
646
647 /* set auto ageing for all ports */
648 REG_WR(smi, RTL8366RB_SSCR1, portmask);
649
650 return 0;
651 }
652
653
654 static const char *rtl8366rb_speed_str(unsigned speed)
655 {
656 switch (speed) {
657 case 0:
658 return "10baseT";
659 case 1:
660 return "100baseT";
661 case 2:
662 return "1000baseT";
663 }
664
665 return "unknown";
666 }
667
668 static int rtl8366rb_sw_get_port_link(struct switch_dev *dev,
669 const struct switch_attr *attr,
670 struct switch_val *val)
671 {
672 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
673 u32 len = 0, data = 0;
674
675 if (val->port_vlan >= RTL8366RB_NUM_PORTS)
676 return -EINVAL;
677
678 memset(smi->buf, '\0', sizeof(smi->buf));
679 rtl8366_smi_read_reg(smi, RTL8366RB_PORT_LINK_STATUS_BASE +
680 (val->port_vlan / 2), &data);
681
682 if (val->port_vlan % 2)
683 data = data >> 8;
684
685 if (data & RTL8366RB_PORT_STATUS_LINK_MASK) {
686 len = snprintf(smi->buf, sizeof(smi->buf),
687 "port:%d link:up speed:%s %s-duplex %s%s%s",
688 val->port_vlan,
689 rtl8366rb_speed_str(data &
690 RTL8366RB_PORT_STATUS_SPEED_MASK),
691 (data & RTL8366RB_PORT_STATUS_DUPLEX_MASK) ?
692 "full" : "half",
693 (data & RTL8366RB_PORT_STATUS_TXPAUSE_MASK) ?
694 "tx-pause ": "",
695 (data & RTL8366RB_PORT_STATUS_RXPAUSE_MASK) ?
696 "rx-pause " : "",
697 (data & RTL8366RB_PORT_STATUS_AN_MASK) ?
698 "nway ": "");
699 } else {
700 len = snprintf(smi->buf, sizeof(smi->buf), "port:%d link: down",
701 val->port_vlan);
702 }
703
704 val->value.s = smi->buf;
705 val->len = len;
706
707 return 0;
708 }
709
710 static int rtl8366rb_sw_set_port_led(struct switch_dev *dev,
711 const struct switch_attr *attr,
712 struct switch_val *val)
713 {
714 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
715 u32 data;
716 u32 mask;
717 u32 reg;
718
719 if (val->port_vlan >= RTL8366RB_NUM_PORTS)
720 return -EINVAL;
721
722 if (val->port_vlan == RTL8366RB_PORT_NUM_CPU) {
723 reg = RTL8366RB_LED_BLINKRATE_REG;
724 mask = 0xF << 4;
725 data = val->value.i << 4;
726 } else {
727 reg = RTL8366RB_LED_CTRL_REG;
728 mask = 0xF << (val->port_vlan * 4),
729 data = val->value.i << (val->port_vlan * 4);
730 }
731
732 return rtl8366_smi_rmwr(smi, reg, mask, data);
733 }
734
735 static int rtl8366rb_sw_get_port_led(struct switch_dev *dev,
736 const struct switch_attr *attr,
737 struct switch_val *val)
738 {
739 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
740 u32 data = 0;
741
742 if (val->port_vlan >= RTL8366RB_NUM_LEDGROUPS)
743 return -EINVAL;
744
745 rtl8366_smi_read_reg(smi, RTL8366RB_LED_CTRL_REG, &data);
746 val->value.i = (data >> (val->port_vlan * 4)) & 0x000F;
747
748 return 0;
749 }
750
751 static int rtl8366rb_sw_reset_port_mibs(struct switch_dev *dev,
752 const struct switch_attr *attr,
753 struct switch_val *val)
754 {
755 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
756
757 if (val->port_vlan >= RTL8366RB_NUM_PORTS)
758 return -EINVAL;
759
760 return rtl8366_smi_rmwr(smi, RTL8366RB_MIB_CTRL_REG, 0,
761 RTL8366RB_MIB_CTRL_PORT_RESET(val->port_vlan));
762 }
763
764 static int rtl8366rb_sw_reset_switch(struct switch_dev *dev)
765 {
766 struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
767 int err;
768
769 err = rtl8366rb_reset_chip(smi);
770 if (err)
771 return err;
772
773 err = rtl8366rb_hw_init(smi);
774 if (err)
775 return err;
776
777 return rtl8366_reset_vlan(smi);
778 }
779
780 static struct switch_attr rtl8366rb_globals[] = {
781 {
782 .type = SWITCH_TYPE_INT,
783 .name = "enable_learning",
784 .description = "Enable learning, enable aging",
785 .set = rtl8366rb_sw_set_learning_enable,
786 .get = rtl8366rb_sw_get_learning_enable,
787 .max = 1
788 }, {
789 .type = SWITCH_TYPE_INT,
790 .name = "enable_vlan",
791 .description = "Enable VLAN mode",
792 .set = rtl8366_sw_set_vlan_enable,
793 .get = rtl8366_sw_get_vlan_enable,
794 .max = 1,
795 .ofs = 1
796 }, {
797 .type = SWITCH_TYPE_INT,
798 .name = "enable_vlan4k",
799 .description = "Enable VLAN 4K mode",
800 .set = rtl8366_sw_set_vlan_enable,
801 .get = rtl8366_sw_get_vlan_enable,
802 .max = 1,
803 .ofs = 2
804 }, {
805 .type = SWITCH_TYPE_NOVAL,
806 .name = "reset_mibs",
807 .description = "Reset all MIB counters",
808 .set = rtl8366rb_sw_reset_mibs,
809 }, {
810 .type = SWITCH_TYPE_INT,
811 .name = "blinkrate",
812 .description = "Get/Set LED blinking rate (0 = 43ms, 1 = 84ms,"
813 " 2 = 120ms, 3 = 170ms, 4 = 340ms, 5 = 670ms)",
814 .set = rtl8366rb_sw_set_blinkrate,
815 .get = rtl8366rb_sw_get_blinkrate,
816 .max = 5
817 },
818 };
819
820 static struct switch_attr rtl8366rb_port[] = {
821 {
822 .type = SWITCH_TYPE_STRING,
823 .name = "link",
824 .description = "Get port link information",
825 .max = 1,
826 .set = NULL,
827 .get = rtl8366rb_sw_get_port_link,
828 }, {
829 .type = SWITCH_TYPE_NOVAL,
830 .name = "reset_mib",
831 .description = "Reset single port MIB counters",
832 .set = rtl8366rb_sw_reset_port_mibs,
833 }, {
834 .type = SWITCH_TYPE_STRING,
835 .name = "mib",
836 .description = "Get MIB counters for port",
837 .max = 33,
838 .set = NULL,
839 .get = rtl8366_sw_get_port_mib,
840 }, {
841 .type = SWITCH_TYPE_INT,
842 .name = "led",
843 .description = "Get/Set port group (0 - 3) led mode (0 - 15)",
844 .max = 15,
845 .set = rtl8366rb_sw_set_port_led,
846 .get = rtl8366rb_sw_get_port_led,
847 },
848 };
849
850 static struct switch_attr rtl8366rb_vlan[] = {
851 {
852 .type = SWITCH_TYPE_STRING,
853 .name = "info",
854 .description = "Get vlan information",
855 .max = 1,
856 .set = NULL,
857 .get = rtl8366_sw_get_vlan_info,
858 },
859 };
860
861 static const struct switch_dev_ops rtl8366_ops = {
862 .attr_global = {
863 .attr = rtl8366rb_globals,
864 .n_attr = ARRAY_SIZE(rtl8366rb_globals),
865 },
866 .attr_port = {
867 .attr = rtl8366rb_port,
868 .n_attr = ARRAY_SIZE(rtl8366rb_port),
869 },
870 .attr_vlan = {
871 .attr = rtl8366rb_vlan,
872 .n_attr = ARRAY_SIZE(rtl8366rb_vlan),
873 },
874
875 .get_vlan_ports = rtl8366_sw_get_vlan_ports,
876 .set_vlan_ports = rtl8366_sw_set_vlan_ports,
877 .get_port_pvid = rtl8366_sw_get_port_pvid,
878 .set_port_pvid = rtl8366_sw_set_port_pvid,
879 .reset_switch = rtl8366rb_sw_reset_switch,
880 };
881
882 static int rtl8366rb_switch_init(struct rtl8366_smi *smi)
883 {
884 struct switch_dev *dev = &smi->sw_dev;
885 int err;
886
887 dev->name = "RTL8366RB";
888 dev->cpu_port = RTL8366RB_PORT_NUM_CPU;
889 dev->ports = RTL8366RB_NUM_PORTS;
890 dev->vlans = RTL8366RB_NUM_VIDS;
891 dev->ops = &rtl8366_ops;
892 dev->devname = dev_name(smi->parent);
893
894 err = register_switch(dev, NULL);
895 if (err)
896 dev_err(smi->parent, "switch registration failed\n");
897
898 return err;
899 }
900
901 static void rtl8366rb_switch_cleanup(struct rtl8366_smi *smi)
902 {
903 unregister_switch(&smi->sw_dev);
904 }
905
906 static int rtl8366rb_mii_read(struct mii_bus *bus, int addr, int reg)
907 {
908 struct rtl8366_smi *smi = bus->priv;
909 u32 val = 0;
910 int err;
911
912 err = rtl8366rb_read_phy_reg(smi, addr, 0, reg, &val);
913 if (err)
914 return 0xffff;
915
916 return val;
917 }
918
919 static int rtl8366rb_mii_write(struct mii_bus *bus, int addr, int reg, u16 val)
920 {
921 struct rtl8366_smi *smi = bus->priv;
922 u32 t;
923 int err;
924
925 err = rtl8366rb_write_phy_reg(smi, addr, 0, reg, val);
926 /* flush write */
927 (void) rtl8366rb_read_phy_reg(smi, addr, 0, reg, &t);
928
929 return err;
930 }
931
932 static int rtl8366rb_mii_bus_match(struct mii_bus *bus)
933 {
934 return (bus->read == rtl8366rb_mii_read &&
935 bus->write == rtl8366rb_mii_write);
936 }
937
938 static int rtl8366rb_setup(struct rtl8366_smi *smi)
939 {
940 int ret;
941
942 ret = rtl8366rb_reset_chip(smi);
943 if (ret)
944 return ret;
945
946 ret = rtl8366rb_hw_init(smi);
947 return ret;
948 }
949
950 static int rtl8366rb_detect(struct rtl8366_smi *smi)
951 {
952 u32 chip_id = 0;
953 u32 chip_ver = 0;
954 int ret;
955
956 ret = rtl8366_smi_read_reg(smi, RTL8366RB_CHIP_ID_REG, &chip_id);
957 if (ret) {
958 dev_err(smi->parent, "unable to read chip id\n");
959 return ret;
960 }
961
962 switch (chip_id) {
963 case RTL8366RB_CHIP_ID_8366:
964 break;
965 default:
966 dev_err(smi->parent, "unknown chip id (%04x)\n", chip_id);
967 return -ENODEV;
968 }
969
970 ret = rtl8366_smi_read_reg(smi, RTL8366RB_CHIP_VERSION_CTRL_REG,
971 &chip_ver);
972 if (ret) {
973 dev_err(smi->parent, "unable to read chip version\n");
974 return ret;
975 }
976
977 dev_info(smi->parent, "RTL%04x ver. %u chip found\n",
978 chip_id, chip_ver & RTL8366RB_CHIP_VERSION_MASK);
979
980 return 0;
981 }
982
983 static struct rtl8366_smi_ops rtl8366rb_smi_ops = {
984 .detect = rtl8366rb_detect,
985 .setup = rtl8366rb_setup,
986
987 .mii_read = rtl8366rb_mii_read,
988 .mii_write = rtl8366rb_mii_write,
989
990 .get_vlan_mc = rtl8366rb_get_vlan_mc,
991 .set_vlan_mc = rtl8366rb_set_vlan_mc,
992 .get_vlan_4k = rtl8366rb_get_vlan_4k,
993 .set_vlan_4k = rtl8366rb_set_vlan_4k,
994 .get_mc_index = rtl8366rb_get_mc_index,
995 .set_mc_index = rtl8366rb_set_mc_index,
996 .get_mib_counter = rtl8366rb_get_mib_counter,
997 .is_vlan_valid = rtl8366rb_is_vlan_valid,
998 .enable_vlan = rtl8366rb_enable_vlan,
999 .enable_vlan4k = rtl8366rb_enable_vlan4k,
1000 };
1001
1002 static int __init rtl8366rb_probe(struct platform_device *pdev)
1003 {
1004 static int rtl8366_smi_version_printed;
1005 struct rtl8366rb_platform_data *pdata;
1006 struct rtl8366_smi *smi;
1007 int err;
1008
1009 if (!rtl8366_smi_version_printed++)
1010 printk(KERN_NOTICE RTL8366RB_DRIVER_DESC
1011 " version " RTL8366RB_DRIVER_VER"\n");
1012
1013 pdata = pdev->dev.platform_data;
1014 if (!pdata) {
1015 dev_err(&pdev->dev, "no platform data specified\n");
1016 err = -EINVAL;
1017 goto err_out;
1018 }
1019
1020 smi = rtl8366_smi_alloc(&pdev->dev);
1021 if (!smi) {
1022 err = -ENOMEM;
1023 goto err_out;
1024 }
1025
1026 smi->gpio_sda = pdata->gpio_sda;
1027 smi->gpio_sck = pdata->gpio_sck;
1028 smi->ops = &rtl8366rb_smi_ops;
1029 smi->cpu_port = RTL8366RB_PORT_NUM_CPU;
1030 smi->num_ports = RTL8366RB_NUM_PORTS;
1031 smi->num_vlan_mc = RTL8366RB_NUM_VLANS;
1032 smi->mib_counters = rtl8366rb_mib_counters;
1033 smi->num_mib_counters = ARRAY_SIZE(rtl8366rb_mib_counters);
1034
1035 err = rtl8366_smi_init(smi);
1036 if (err)
1037 goto err_free_smi;
1038
1039 platform_set_drvdata(pdev, smi);
1040
1041 err = rtl8366rb_switch_init(smi);
1042 if (err)
1043 goto err_clear_drvdata;
1044
1045 return 0;
1046
1047 err_clear_drvdata:
1048 platform_set_drvdata(pdev, NULL);
1049 rtl8366_smi_cleanup(smi);
1050 err_free_smi:
1051 kfree(smi);
1052 err_out:
1053 return err;
1054 }
1055
1056 static int rtl8366rb_phy_config_init(struct phy_device *phydev)
1057 {
1058 if (!rtl8366rb_mii_bus_match(phydev->bus))
1059 return -EINVAL;
1060
1061 return 0;
1062 }
1063
1064 static int rtl8366rb_phy_config_aneg(struct phy_device *phydev)
1065 {
1066 return 0;
1067 }
1068
1069 static struct phy_driver rtl8366rb_phy_driver = {
1070 .phy_id = 0x001cc960,
1071 .name = "Realtek RTL8366RB",
1072 .phy_id_mask = 0x1ffffff0,
1073 .features = PHY_GBIT_FEATURES,
1074 .config_aneg = rtl8366rb_phy_config_aneg,
1075 .config_init = rtl8366rb_phy_config_init,
1076 .read_status = genphy_read_status,
1077 .driver = {
1078 .owner = THIS_MODULE,
1079 },
1080 };
1081
1082 static int __devexit rtl8366rb_remove(struct platform_device *pdev)
1083 {
1084 struct rtl8366_smi *smi = platform_get_drvdata(pdev);
1085
1086 if (smi) {
1087 rtl8366rb_switch_cleanup(smi);
1088 platform_set_drvdata(pdev, NULL);
1089 rtl8366_smi_cleanup(smi);
1090 kfree(smi);
1091 }
1092
1093 return 0;
1094 }
1095
1096 static struct platform_driver rtl8366rb_driver = {
1097 .driver = {
1098 .name = RTL8366RB_DRIVER_NAME,
1099 .owner = THIS_MODULE,
1100 },
1101 .probe = rtl8366rb_probe,
1102 .remove = __devexit_p(rtl8366rb_remove),
1103 };
1104
1105 static int __init rtl8366rb_module_init(void)
1106 {
1107 int ret;
1108 ret = platform_driver_register(&rtl8366rb_driver);
1109 if (ret)
1110 return ret;
1111
1112 ret = phy_driver_register(&rtl8366rb_phy_driver);
1113 if (ret)
1114 goto err_platform_unregister;
1115
1116 return 0;
1117
1118 err_platform_unregister:
1119 platform_driver_unregister(&rtl8366rb_driver);
1120 return ret;
1121 }
1122 module_init(rtl8366rb_module_init);
1123
1124 static void __exit rtl8366rb_module_exit(void)
1125 {
1126 phy_driver_unregister(&rtl8366rb_phy_driver);
1127 platform_driver_unregister(&rtl8366rb_driver);
1128 }
1129 module_exit(rtl8366rb_module_exit);
1130
1131 MODULE_DESCRIPTION(RTL8366RB_DRIVER_DESC);
1132 MODULE_VERSION(RTL8366RB_DRIVER_VER);
1133 MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
1134 MODULE_AUTHOR("Antti Seppälä <a.seppala@gmail.com>");
1135 MODULE_LICENSE("GPL v2");
1136 MODULE_ALIAS("platform:" RTL8366RB_DRIVER_NAME);
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