generic: rtl8366: add generic code to enable VLANs
[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);