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1/*
2 * B53 switch driver main logic
3 *
4 * Copyright (C) 2011-2013 Jonas Gorski <jogo@openwrt.org>
5 * Copyright (C) 2016 Florian Fainelli <f.fainelli@gmail.com>
6 *
7 * Permission to use, copy, modify, and/or distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
10 *
11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 */
19
20#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
21
22#include <linux/delay.h>
23#include <linux/export.h>
24#include <linux/gpio.h>
25#include <linux/kernel.h>
26#include <linux/module.h>
27#include <linux/platform_data/b53.h>
28#include <linux/phy.h>
29#include <linux/phylink.h>
30#include <linux/etherdevice.h>
31#include <linux/if_bridge.h>
32#include <net/dsa.h>
33
34#include "b53_regs.h"
35#include "b53_priv.h"
36
37struct b53_mib_desc {
38 u8 size;
39 u8 offset;
40 const char *name;
41};
42
43/* BCM5365 MIB counters */
44static const struct b53_mib_desc b53_mibs_65[] = {
45 { 8, 0x00, "TxOctets" },
46 { 4, 0x08, "TxDropPkts" },
47 { 4, 0x10, "TxBroadcastPkts" },
48 { 4, 0x14, "TxMulticastPkts" },
49 { 4, 0x18, "TxUnicastPkts" },
50 { 4, 0x1c, "TxCollisions" },
51 { 4, 0x20, "TxSingleCollision" },
52 { 4, 0x24, "TxMultipleCollision" },
53 { 4, 0x28, "TxDeferredTransmit" },
54 { 4, 0x2c, "TxLateCollision" },
55 { 4, 0x30, "TxExcessiveCollision" },
56 { 4, 0x38, "TxPausePkts" },
57 { 8, 0x44, "RxOctets" },
58 { 4, 0x4c, "RxUndersizePkts" },
59 { 4, 0x50, "RxPausePkts" },
60 { 4, 0x54, "Pkts64Octets" },
61 { 4, 0x58, "Pkts65to127Octets" },
62 { 4, 0x5c, "Pkts128to255Octets" },
63 { 4, 0x60, "Pkts256to511Octets" },
64 { 4, 0x64, "Pkts512to1023Octets" },
65 { 4, 0x68, "Pkts1024to1522Octets" },
66 { 4, 0x6c, "RxOversizePkts" },
67 { 4, 0x70, "RxJabbers" },
68 { 4, 0x74, "RxAlignmentErrors" },
69 { 4, 0x78, "RxFCSErrors" },
70 { 8, 0x7c, "RxGoodOctets" },
71 { 4, 0x84, "RxDropPkts" },
72 { 4, 0x88, "RxUnicastPkts" },
73 { 4, 0x8c, "RxMulticastPkts" },
74 { 4, 0x90, "RxBroadcastPkts" },
75 { 4, 0x94, "RxSAChanges" },
76 { 4, 0x98, "RxFragments" },
77};
78
79#define B53_MIBS_65_SIZE ARRAY_SIZE(b53_mibs_65)
80
81/* BCM63xx MIB counters */
82static const struct b53_mib_desc b53_mibs_63xx[] = {
83 { 8, 0x00, "TxOctets" },
84 { 4, 0x08, "TxDropPkts" },
85 { 4, 0x0c, "TxQoSPkts" },
86 { 4, 0x10, "TxBroadcastPkts" },
87 { 4, 0x14, "TxMulticastPkts" },
88 { 4, 0x18, "TxUnicastPkts" },
89 { 4, 0x1c, "TxCollisions" },
90 { 4, 0x20, "TxSingleCollision" },
91 { 4, 0x24, "TxMultipleCollision" },
92 { 4, 0x28, "TxDeferredTransmit" },
93 { 4, 0x2c, "TxLateCollision" },
94 { 4, 0x30, "TxExcessiveCollision" },
95 { 4, 0x38, "TxPausePkts" },
96 { 8, 0x3c, "TxQoSOctets" },
97 { 8, 0x44, "RxOctets" },
98 { 4, 0x4c, "RxUndersizePkts" },
99 { 4, 0x50, "RxPausePkts" },
100 { 4, 0x54, "Pkts64Octets" },
101 { 4, 0x58, "Pkts65to127Octets" },
102 { 4, 0x5c, "Pkts128to255Octets" },
103 { 4, 0x60, "Pkts256to511Octets" },
104 { 4, 0x64, "Pkts512to1023Octets" },
105 { 4, 0x68, "Pkts1024to1522Octets" },
106 { 4, 0x6c, "RxOversizePkts" },
107 { 4, 0x70, "RxJabbers" },
108 { 4, 0x74, "RxAlignmentErrors" },
109 { 4, 0x78, "RxFCSErrors" },
110 { 8, 0x7c, "RxGoodOctets" },
111 { 4, 0x84, "RxDropPkts" },
112 { 4, 0x88, "RxUnicastPkts" },
113 { 4, 0x8c, "RxMulticastPkts" },
114 { 4, 0x90, "RxBroadcastPkts" },
115 { 4, 0x94, "RxSAChanges" },
116 { 4, 0x98, "RxFragments" },
117 { 4, 0xa0, "RxSymbolErrors" },
118 { 4, 0xa4, "RxQoSPkts" },
119 { 8, 0xa8, "RxQoSOctets" },
120 { 4, 0xb0, "Pkts1523to2047Octets" },
121 { 4, 0xb4, "Pkts2048to4095Octets" },
122 { 4, 0xb8, "Pkts4096to8191Octets" },
123 { 4, 0xbc, "Pkts8192to9728Octets" },
124 { 4, 0xc0, "RxDiscarded" },
125};
126
127#define B53_MIBS_63XX_SIZE ARRAY_SIZE(b53_mibs_63xx)
128
129/* MIB counters */
130static const struct b53_mib_desc b53_mibs[] = {
131 { 8, 0x00, "TxOctets" },
132 { 4, 0x08, "TxDropPkts" },
133 { 4, 0x10, "TxBroadcastPkts" },
134 { 4, 0x14, "TxMulticastPkts" },
135 { 4, 0x18, "TxUnicastPkts" },
136 { 4, 0x1c, "TxCollisions" },
137 { 4, 0x20, "TxSingleCollision" },
138 { 4, 0x24, "TxMultipleCollision" },
139 { 4, 0x28, "TxDeferredTransmit" },
140 { 4, 0x2c, "TxLateCollision" },
141 { 4, 0x30, "TxExcessiveCollision" },
142 { 4, 0x38, "TxPausePkts" },
143 { 8, 0x50, "RxOctets" },
144 { 4, 0x58, "RxUndersizePkts" },
145 { 4, 0x5c, "RxPausePkts" },
146 { 4, 0x60, "Pkts64Octets" },
147 { 4, 0x64, "Pkts65to127Octets" },
148 { 4, 0x68, "Pkts128to255Octets" },
149 { 4, 0x6c, "Pkts256to511Octets" },
150 { 4, 0x70, "Pkts512to1023Octets" },
151 { 4, 0x74, "Pkts1024to1522Octets" },
152 { 4, 0x78, "RxOversizePkts" },
153 { 4, 0x7c, "RxJabbers" },
154 { 4, 0x80, "RxAlignmentErrors" },
155 { 4, 0x84, "RxFCSErrors" },
156 { 8, 0x88, "RxGoodOctets" },
157 { 4, 0x90, "RxDropPkts" },
158 { 4, 0x94, "RxUnicastPkts" },
159 { 4, 0x98, "RxMulticastPkts" },
160 { 4, 0x9c, "RxBroadcastPkts" },
161 { 4, 0xa0, "RxSAChanges" },
162 { 4, 0xa4, "RxFragments" },
163 { 4, 0xa8, "RxJumboPkts" },
164 { 4, 0xac, "RxSymbolErrors" },
165 { 4, 0xc0, "RxDiscarded" },
166};
167
168#define B53_MIBS_SIZE ARRAY_SIZE(b53_mibs)
169
170static const struct b53_mib_desc b53_mibs_58xx[] = {
171 { 8, 0x00, "TxOctets" },
172 { 4, 0x08, "TxDropPkts" },
173 { 4, 0x0c, "TxQPKTQ0" },
174 { 4, 0x10, "TxBroadcastPkts" },
175 { 4, 0x14, "TxMulticastPkts" },
176 { 4, 0x18, "TxUnicastPKts" },
177 { 4, 0x1c, "TxCollisions" },
178 { 4, 0x20, "TxSingleCollision" },
179 { 4, 0x24, "TxMultipleCollision" },
180 { 4, 0x28, "TxDeferredCollision" },
181 { 4, 0x2c, "TxLateCollision" },
182 { 4, 0x30, "TxExcessiveCollision" },
183 { 4, 0x34, "TxFrameInDisc" },
184 { 4, 0x38, "TxPausePkts" },
185 { 4, 0x3c, "TxQPKTQ1" },
186 { 4, 0x40, "TxQPKTQ2" },
187 { 4, 0x44, "TxQPKTQ3" },
188 { 4, 0x48, "TxQPKTQ4" },
189 { 4, 0x4c, "TxQPKTQ5" },
190 { 8, 0x50, "RxOctets" },
191 { 4, 0x58, "RxUndersizePkts" },
192 { 4, 0x5c, "RxPausePkts" },
193 { 4, 0x60, "RxPkts64Octets" },
194 { 4, 0x64, "RxPkts65to127Octets" },
195 { 4, 0x68, "RxPkts128to255Octets" },
196 { 4, 0x6c, "RxPkts256to511Octets" },
197 { 4, 0x70, "RxPkts512to1023Octets" },
198 { 4, 0x74, "RxPkts1024toMaxPktsOctets" },
199 { 4, 0x78, "RxOversizePkts" },
200 { 4, 0x7c, "RxJabbers" },
201 { 4, 0x80, "RxAlignmentErrors" },
202 { 4, 0x84, "RxFCSErrors" },
203 { 8, 0x88, "RxGoodOctets" },
204 { 4, 0x90, "RxDropPkts" },
205 { 4, 0x94, "RxUnicastPkts" },
206 { 4, 0x98, "RxMulticastPkts" },
207 { 4, 0x9c, "RxBroadcastPkts" },
208 { 4, 0xa0, "RxSAChanges" },
209 { 4, 0xa4, "RxFragments" },
210 { 4, 0xa8, "RxJumboPkt" },
211 { 4, 0xac, "RxSymblErr" },
212 { 4, 0xb0, "InRangeErrCount" },
213 { 4, 0xb4, "OutRangeErrCount" },
214 { 4, 0xb8, "EEELpiEvent" },
215 { 4, 0xbc, "EEELpiDuration" },
216 { 4, 0xc0, "RxDiscard" },
217 { 4, 0xc8, "TxQPKTQ6" },
218 { 4, 0xcc, "TxQPKTQ7" },
219 { 4, 0xd0, "TxPkts64Octets" },
220 { 4, 0xd4, "TxPkts65to127Octets" },
221 { 4, 0xd8, "TxPkts128to255Octets" },
222 { 4, 0xdc, "TxPkts256to511Ocets" },
223 { 4, 0xe0, "TxPkts512to1023Ocets" },
224 { 4, 0xe4, "TxPkts1024toMaxPktOcets" },
225};
226
227#define B53_MIBS_58XX_SIZE ARRAY_SIZE(b53_mibs_58xx)
228
229static int b53_do_vlan_op(struct b53_device *dev, u8 op)
230{
231 unsigned int i;
232
233 b53_write8(dev, B53_ARLIO_PAGE, dev->vta_regs[0], VTA_START_CMD | op);
234
235 for (i = 0; i < 10; i++) {
236 u8 vta;
237
238 b53_read8(dev, B53_ARLIO_PAGE, dev->vta_regs[0], &vta);
239 if (!(vta & VTA_START_CMD))
240 return 0;
241
242 usleep_range(100, 200);
243 }
244
245 return -EIO;
246}
247
248static void b53_set_vlan_entry(struct b53_device *dev, u16 vid,
249 struct b53_vlan *vlan)
250{
251 if (is5325(dev)) {
252 u32 entry = 0;
253
254 if (vlan->members) {
255 entry = ((vlan->untag & VA_UNTAG_MASK_25) <<
256 VA_UNTAG_S_25) | vlan->members;
257 if (dev->core_rev >= 3)
258 entry |= VA_VALID_25_R4 | vid << VA_VID_HIGH_S;
259 else
260 entry |= VA_VALID_25;
261 }
262
263 b53_write32(dev, B53_VLAN_PAGE, B53_VLAN_WRITE_25, entry);
264 b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_25, vid |
265 VTA_RW_STATE_WR | VTA_RW_OP_EN);
266 } else if (is5365(dev)) {
267 u16 entry = 0;
268
269 if (vlan->members)
270 entry = ((vlan->untag & VA_UNTAG_MASK_65) <<
271 VA_UNTAG_S_65) | vlan->members | VA_VALID_65;
272
273 b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_WRITE_65, entry);
274 b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_65, vid |
275 VTA_RW_STATE_WR | VTA_RW_OP_EN);
276 } else {
277 b53_write16(dev, B53_ARLIO_PAGE, dev->vta_regs[1], vid);
278 b53_write32(dev, B53_ARLIO_PAGE, dev->vta_regs[2],
279 (vlan->untag << VTE_UNTAG_S) | vlan->members);
280
281 b53_do_vlan_op(dev, VTA_CMD_WRITE);
282 }
283
284 dev_dbg(dev->ds->dev, "VID: %d, members: 0x%04x, untag: 0x%04x\n",
285 vid, vlan->members, vlan->untag);
286}
287
288static void b53_get_vlan_entry(struct b53_device *dev, u16 vid,
289 struct b53_vlan *vlan)
290{
291 if (is5325(dev)) {
292 u32 entry = 0;
293
294 b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_25, vid |
295 VTA_RW_STATE_RD | VTA_RW_OP_EN);
296 b53_read32(dev, B53_VLAN_PAGE, B53_VLAN_WRITE_25, &entry);
297
298 if (dev->core_rev >= 3)
299 vlan->valid = !!(entry & VA_VALID_25_R4);
300 else
301 vlan->valid = !!(entry & VA_VALID_25);
302 vlan->members = entry & VA_MEMBER_MASK;
303 vlan->untag = (entry >> VA_UNTAG_S_25) & VA_UNTAG_MASK_25;
304
305 } else if (is5365(dev)) {
306 u16 entry = 0;
307
308 b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_65, vid |
309 VTA_RW_STATE_WR | VTA_RW_OP_EN);
310 b53_read16(dev, B53_VLAN_PAGE, B53_VLAN_WRITE_65, &entry);
311
312 vlan->valid = !!(entry & VA_VALID_65);
313 vlan->members = entry & VA_MEMBER_MASK;
314 vlan->untag = (entry >> VA_UNTAG_S_65) & VA_UNTAG_MASK_65;
315 } else {
316 u32 entry = 0;
317
318 b53_write16(dev, B53_ARLIO_PAGE, dev->vta_regs[1], vid);
319 b53_do_vlan_op(dev, VTA_CMD_READ);
320 b53_read32(dev, B53_ARLIO_PAGE, dev->vta_regs[2], &entry);
321 vlan->members = entry & VTE_MEMBERS;
322 vlan->untag = (entry >> VTE_UNTAG_S) & VTE_MEMBERS;
323 vlan->valid = true;
324 }
325}
326
327static void b53_set_forwarding(struct b53_device *dev, int enable)
328{
329 u8 mgmt;
330
331 b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt);
332
333 if (enable)
334 mgmt |= SM_SW_FWD_EN;
335 else
336 mgmt &= ~SM_SW_FWD_EN;
337
338 b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, mgmt);
339
340 /* Include IMP port in dumb forwarding mode
341 */
342 b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_CTRL, &mgmt);
343 mgmt |= B53_MII_DUMB_FWDG_EN;
344 b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_CTRL, mgmt);
345
346 /* Look at B53_UC_FWD_EN and B53_MC_FWD_EN to decide whether
347 * frames should be flooded or not.
348 */
349 b53_read8(dev, B53_CTRL_PAGE, B53_IP_MULTICAST_CTRL, &mgmt);
350 mgmt |= B53_UC_FWD_EN | B53_MC_FWD_EN | B53_IPMC_FWD_EN;
351 b53_write8(dev, B53_CTRL_PAGE, B53_IP_MULTICAST_CTRL, mgmt);
352}
353
354static void b53_enable_vlan(struct b53_device *dev, bool enable,
355 bool enable_filtering)
356{
357 u8 mgmt, vc0, vc1, vc4 = 0, vc5;
358
359 b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt);
360 b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL0, &vc0);
361 b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL1, &vc1);
362
363 if (is5325(dev) || is5365(dev)) {
364 b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_25, &vc4);
365 b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5_25, &vc5);
366 } else if (is63xx(dev)) {
367 b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_63XX, &vc4);
368 b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5_63XX, &vc5);
369 } else {
370 b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4, &vc4);
371 b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5, &vc5);
372 }
373
374 if (enable) {
375 vc0 |= VC0_VLAN_EN | VC0_VID_CHK_EN | VC0_VID_HASH_VID;
376 vc1 |= VC1_RX_MCST_UNTAG_EN | VC1_RX_MCST_FWD_EN;
377 vc4 &= ~VC4_ING_VID_CHECK_MASK;
378 if (enable_filtering) {
379 vc4 |= VC4_ING_VID_VIO_DROP << VC4_ING_VID_CHECK_S;
380 vc5 |= VC5_DROP_VTABLE_MISS;
381 } else {
382 vc4 |= VC4_ING_VID_VIO_FWD << VC4_ING_VID_CHECK_S;
383 vc5 &= ~VC5_DROP_VTABLE_MISS;
384 }
385
386 if (is5325(dev))
387 vc0 &= ~VC0_RESERVED_1;
388
389 if (is5325(dev) || is5365(dev))
390 vc1 |= VC1_RX_MCST_TAG_EN;
391
392 } else {
393 vc0 &= ~(VC0_VLAN_EN | VC0_VID_CHK_EN | VC0_VID_HASH_VID);
394 vc1 &= ~(VC1_RX_MCST_UNTAG_EN | VC1_RX_MCST_FWD_EN);
395 vc4 &= ~VC4_ING_VID_CHECK_MASK;
396 vc5 &= ~VC5_DROP_VTABLE_MISS;
397
398 if (is5325(dev) || is5365(dev))
399 vc4 |= VC4_ING_VID_VIO_FWD << VC4_ING_VID_CHECK_S;
400 else
401 vc4 |= VC4_ING_VID_VIO_TO_IMP << VC4_ING_VID_CHECK_S;
402
403 if (is5325(dev) || is5365(dev))
404 vc1 &= ~VC1_RX_MCST_TAG_EN;
405 }
406
407 if (!is5325(dev) && !is5365(dev))
408 vc5 &= ~VC5_VID_FFF_EN;
409
410 b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL0, vc0);
411 b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL1, vc1);
412
413 if (is5325(dev) || is5365(dev)) {
414 /* enable the high 8 bit vid check on 5325 */
415 if (is5325(dev) && enable)
416 b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL3,
417 VC3_HIGH_8BIT_EN);
418 else
419 b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL3, 0);
420
421 b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_25, vc4);
422 b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5_25, vc5);
423 } else if (is63xx(dev)) {
424 b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_CTRL3_63XX, 0);
425 b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_63XX, vc4);
426 b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5_63XX, vc5);
427 } else {
428 b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_CTRL3, 0);
429 b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4, vc4);
430 b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5, vc5);
431 }
432
433 b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, mgmt);
434
435 dev->vlan_enabled = enable;
436}
437
438static int b53_set_jumbo(struct b53_device *dev, bool enable, bool allow_10_100)
439{
440 u32 port_mask = 0;
441 u16 max_size = JMS_MIN_SIZE;
442
443 if (is5325(dev) || is5365(dev))
444 return -EINVAL;
445
446 if (enable) {
447 port_mask = dev->enabled_ports;
448 max_size = JMS_MAX_SIZE;
449 if (allow_10_100)
450 port_mask |= JPM_10_100_JUMBO_EN;
451 }
452
453 b53_write32(dev, B53_JUMBO_PAGE, dev->jumbo_pm_reg, port_mask);
454 return b53_write16(dev, B53_JUMBO_PAGE, dev->jumbo_size_reg, max_size);
455}
456
457static int b53_flush_arl(struct b53_device *dev, u8 mask)
458{
459 unsigned int i;
460
461 b53_write8(dev, B53_CTRL_PAGE, B53_FAST_AGE_CTRL,
462 FAST_AGE_DONE | FAST_AGE_DYNAMIC | mask);
463
464 for (i = 0; i < 10; i++) {
465 u8 fast_age_ctrl;
466
467 b53_read8(dev, B53_CTRL_PAGE, B53_FAST_AGE_CTRL,
468 &fast_age_ctrl);
469
470 if (!(fast_age_ctrl & FAST_AGE_DONE))
471 goto out;
472
473 msleep(1);
474 }
475
476 return -ETIMEDOUT;
477out:
478 /* Only age dynamic entries (default behavior) */
479 b53_write8(dev, B53_CTRL_PAGE, B53_FAST_AGE_CTRL, FAST_AGE_DYNAMIC);
480 return 0;
481}
482
483static int b53_fast_age_port(struct b53_device *dev, int port)
484{
485 b53_write8(dev, B53_CTRL_PAGE, B53_FAST_AGE_PORT_CTRL, port);
486
487 return b53_flush_arl(dev, FAST_AGE_PORT);
488}
489
490static int b53_fast_age_vlan(struct b53_device *dev, u16 vid)
491{
492 b53_write16(dev, B53_CTRL_PAGE, B53_FAST_AGE_VID_CTRL, vid);
493
494 return b53_flush_arl(dev, FAST_AGE_VLAN);
495}
496
497void b53_imp_vlan_setup(struct dsa_switch *ds, int cpu_port)
498{
499 struct b53_device *dev = ds->priv;
500 unsigned int i;
501 u16 pvlan;
502
503 /* Enable the IMP port to be in the same VLAN as the other ports
504 * on a per-port basis such that we only have Port i and IMP in
505 * the same VLAN.
506 */
507 b53_for_each_port(dev, i) {
508 b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), &pvlan);
509 pvlan |= BIT(cpu_port);
510 b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), pvlan);
511 }
512}
513EXPORT_SYMBOL(b53_imp_vlan_setup);
514
515int b53_enable_port(struct dsa_switch *ds, int port, struct phy_device *phy)
516{
517 struct b53_device *dev = ds->priv;
518 unsigned int cpu_port;
519 int ret = 0;
520 u16 pvlan;
521
522 if (!dsa_is_user_port(ds, port))
523 return 0;
524
525 cpu_port = dsa_to_port(ds, port)->cpu_dp->index;
526
527 b53_br_egress_floods(ds, port, true, true);
528
529 if (dev->ops->irq_enable)
530 ret = dev->ops->irq_enable(dev, port);
531 if (ret)
532 return ret;
533
534 /* Clear the Rx and Tx disable bits and set to no spanning tree */
535 b53_write8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), 0);
536
537 /* Set this port, and only this one to be in the default VLAN,
538 * if member of a bridge, restore its membership prior to
539 * bringing down this port.
540 */
541 b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), &pvlan);
542 pvlan &= ~0x1ff;
543 pvlan |= BIT(port);
544 pvlan |= dev->ports[port].vlan_ctl_mask;
545 b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), pvlan);
546
547 b53_imp_vlan_setup(ds, cpu_port);
548
549 /* If EEE was enabled, restore it */
550 if (dev->ports[port].eee.eee_enabled)
551 b53_eee_enable_set(ds, port, true);
552
553 return 0;
554}
555EXPORT_SYMBOL(b53_enable_port);
556
557void b53_disable_port(struct dsa_switch *ds, int port)
558{
559 struct b53_device *dev = ds->priv;
560 u8 reg;
561
562 /* Disable Tx/Rx for the port */
563 b53_read8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), ®);
564 reg |= PORT_CTRL_RX_DISABLE | PORT_CTRL_TX_DISABLE;
565 b53_write8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), reg);
566
567 if (dev->ops->irq_disable)
568 dev->ops->irq_disable(dev, port);
569}
570EXPORT_SYMBOL(b53_disable_port);
571
572void b53_brcm_hdr_setup(struct dsa_switch *ds, int port)
573{
574 struct b53_device *dev = ds->priv;
575 bool tag_en = !(dev->tag_protocol == DSA_TAG_PROTO_NONE);
576 u8 hdr_ctl, val;
577 u16 reg;
578
579 /* Resolve which bit controls the Broadcom tag */
580 switch (port) {
581 case 8:
582 val = BRCM_HDR_P8_EN;
583 break;
584 case 7:
585 val = BRCM_HDR_P7_EN;
586 break;
587 case 5:
588 val = BRCM_HDR_P5_EN;
589 break;
590 default:
591 val = 0;
592 break;
593 }
594
595 /* Enable management mode if tagging is requested */
596 b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &hdr_ctl);
597 if (tag_en)
598 hdr_ctl |= SM_SW_FWD_MODE;
599 else
600 hdr_ctl &= ~SM_SW_FWD_MODE;
601 b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, hdr_ctl);
602
603 /* Configure the appropriate IMP port */
604 b53_read8(dev, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, &hdr_ctl);
605 if (port == 8)
606 hdr_ctl |= GC_FRM_MGMT_PORT_MII;
607 else if (port == 5)
608 hdr_ctl |= GC_FRM_MGMT_PORT_M;
609 b53_write8(dev, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, hdr_ctl);
610
611 /* Enable Broadcom tags for IMP port */
612 b53_read8(dev, B53_MGMT_PAGE, B53_BRCM_HDR, &hdr_ctl);
613 if (tag_en)
614 hdr_ctl |= val;
615 else
616 hdr_ctl &= ~val;
617 b53_write8(dev, B53_MGMT_PAGE, B53_BRCM_HDR, hdr_ctl);
618
619 /* Registers below are only accessible on newer devices */
620 if (!is58xx(dev))
621 return;
622
623 /* Enable reception Broadcom tag for CPU TX (switch RX) to
624 * allow us to tag outgoing frames
625 */
626 b53_read16(dev, B53_MGMT_PAGE, B53_BRCM_HDR_RX_DIS, ®);
627 if (tag_en)
628 reg &= ~BIT(port);
629 else
630 reg |= BIT(port);
631 b53_write16(dev, B53_MGMT_PAGE, B53_BRCM_HDR_RX_DIS, reg);
632
633 /* Enable transmission of Broadcom tags from the switch (CPU RX) to
634 * allow delivering frames to the per-port net_devices
635 */
636 b53_read16(dev, B53_MGMT_PAGE, B53_BRCM_HDR_TX_DIS, ®);
637 if (tag_en)
638 reg &= ~BIT(port);
639 else
640 reg |= BIT(port);
641 b53_write16(dev, B53_MGMT_PAGE, B53_BRCM_HDR_TX_DIS, reg);
642}
643EXPORT_SYMBOL(b53_brcm_hdr_setup);
644
645static void b53_enable_cpu_port(struct b53_device *dev, int port)
646{
647 u8 port_ctrl;
648
649 /* BCM5325 CPU port is at 8 */
650 if ((is5325(dev) || is5365(dev)) && port == B53_CPU_PORT_25)
651 port = B53_CPU_PORT;
652
653 port_ctrl = PORT_CTRL_RX_BCST_EN |
654 PORT_CTRL_RX_MCST_EN |
655 PORT_CTRL_RX_UCST_EN;
656 b53_write8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), port_ctrl);
657
658 b53_brcm_hdr_setup(dev->ds, port);
659
660 b53_br_egress_floods(dev->ds, port, true, true);
661}
662
663static void b53_enable_mib(struct b53_device *dev)
664{
665 u8 gc;
666
667 b53_read8(dev, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, &gc);
668 gc &= ~(GC_RESET_MIB | GC_MIB_AC_EN);
669 b53_write8(dev, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, gc);
670}
671
672static u16 b53_default_pvid(struct b53_device *dev)
673{
674 if (is5325(dev) || is5365(dev))
675 return 1;
676 else
677 return 0;
678}
679
680int b53_configure_vlan(struct dsa_switch *ds)
681{
682 struct b53_device *dev = ds->priv;
683 struct b53_vlan vl = { 0 };
684 struct b53_vlan *v;
685 int i, def_vid;
686 u16 vid;
687
688 def_vid = b53_default_pvid(dev);
689
690 /* clear all vlan entries */
691 if (is5325(dev) || is5365(dev)) {
692 for (i = def_vid; i < dev->num_vlans; i++)
693 b53_set_vlan_entry(dev, i, &vl);
694 } else {
695 b53_do_vlan_op(dev, VTA_CMD_CLEAR);
696 }
697
698 b53_enable_vlan(dev, dev->vlan_enabled, ds->vlan_filtering);
699
700 b53_for_each_port(dev, i)
701 b53_write16(dev, B53_VLAN_PAGE,
702 B53_VLAN_PORT_DEF_TAG(i), def_vid);
703
704 /* Upon initial call we have not set-up any VLANs, but upon
705 * system resume, we need to restore all VLAN entries.
706 */
707 for (vid = def_vid; vid < dev->num_vlans; vid++) {
708 v = &dev->vlans[vid];
709
710 if (!v->members)
711 continue;
712
713 b53_set_vlan_entry(dev, vid, v);
714 b53_fast_age_vlan(dev, vid);
715 }
716
717 return 0;
718}
719EXPORT_SYMBOL(b53_configure_vlan);
720
721static void b53_switch_reset_gpio(struct b53_device *dev)
722{
723 int gpio = dev->reset_gpio;
724
725 if (gpio < 0)
726 return;
727
728 /* Reset sequence: RESET low(50ms)->high(20ms)
729 */
730 gpio_set_value(gpio, 0);
731 mdelay(50);
732
733 gpio_set_value(gpio, 1);
734 mdelay(20);
735
736 dev->current_page = 0xff;
737}
738
739static int b53_switch_reset(struct b53_device *dev)
740{
741 unsigned int timeout = 1000;
742 u8 mgmt, reg;
743
744 b53_switch_reset_gpio(dev);
745
746 if (is539x(dev)) {
747 b53_write8(dev, B53_CTRL_PAGE, B53_SOFTRESET, 0x83);
748 b53_write8(dev, B53_CTRL_PAGE, B53_SOFTRESET, 0x00);
749 }
750
751 /* This is specific to 58xx devices here, do not use is58xx() which
752 * covers the larger Starfigther 2 family, including 7445/7278 which
753 * still use this driver as a library and need to perform the reset
754 * earlier.
755 */
756 if (dev->chip_id == BCM58XX_DEVICE_ID ||
757 dev->chip_id == BCM583XX_DEVICE_ID) {
758 b53_read8(dev, B53_CTRL_PAGE, B53_SOFTRESET, ®);
759 reg |= SW_RST | EN_SW_RST | EN_CH_RST;
760 b53_write8(dev, B53_CTRL_PAGE, B53_SOFTRESET, reg);
761
762 do {
763 b53_read8(dev, B53_CTRL_PAGE, B53_SOFTRESET, ®);
764 if (!(reg & SW_RST))
765 break;
766
767 usleep_range(1000, 2000);
768 } while (timeout-- > 0);
769
770 if (timeout == 0)
771 return -ETIMEDOUT;
772 }
773
774 b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt);
775
776 if (!(mgmt & SM_SW_FWD_EN)) {
777 mgmt &= ~SM_SW_FWD_MODE;
778 mgmt |= SM_SW_FWD_EN;
779
780 b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, mgmt);
781 b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt);
782
783 if (!(mgmt & SM_SW_FWD_EN)) {
784 dev_err(dev->dev, "Failed to enable switch!\n");
785 return -EINVAL;
786 }
787 }
788
789 b53_enable_mib(dev);
790
791 return b53_flush_arl(dev, FAST_AGE_STATIC);
792}
793
794static int b53_phy_read16(struct dsa_switch *ds, int addr, int reg)
795{
796 struct b53_device *priv = ds->priv;
797 u16 value = 0;
798 int ret;
799
800 if (priv->ops->phy_read16)
801 ret = priv->ops->phy_read16(priv, addr, reg, &value);
802 else
803 ret = b53_read16(priv, B53_PORT_MII_PAGE(addr),
804 reg * 2, &value);
805
806 return ret ? ret : value;
807}
808
809static int b53_phy_write16(struct dsa_switch *ds, int addr, int reg, u16 val)
810{
811 struct b53_device *priv = ds->priv;
812
813 if (priv->ops->phy_write16)
814 return priv->ops->phy_write16(priv, addr, reg, val);
815
816 return b53_write16(priv, B53_PORT_MII_PAGE(addr), reg * 2, val);
817}
818
819static int b53_reset_switch(struct b53_device *priv)
820{
821 /* reset vlans */
822 memset(priv->vlans, 0, sizeof(*priv->vlans) * priv->num_vlans);
823 memset(priv->ports, 0, sizeof(*priv->ports) * priv->num_ports);
824
825 priv->serdes_lane = B53_INVALID_LANE;
826
827 return b53_switch_reset(priv);
828}
829
830static int b53_apply_config(struct b53_device *priv)
831{
832 /* disable switching */
833 b53_set_forwarding(priv, 0);
834
835 b53_configure_vlan(priv->ds);
836
837 /* enable switching */
838 b53_set_forwarding(priv, 1);
839
840 return 0;
841}
842
843static void b53_reset_mib(struct b53_device *priv)
844{
845 u8 gc;
846
847 b53_read8(priv, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, &gc);
848
849 b53_write8(priv, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, gc | GC_RESET_MIB);
850 msleep(1);
851 b53_write8(priv, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, gc & ~GC_RESET_MIB);
852 msleep(1);
853}
854
855static const struct b53_mib_desc *b53_get_mib(struct b53_device *dev)
856{
857 if (is5365(dev))
858 return b53_mibs_65;
859 else if (is63xx(dev))
860 return b53_mibs_63xx;
861 else if (is58xx(dev))
862 return b53_mibs_58xx;
863 else
864 return b53_mibs;
865}
866
867static unsigned int b53_get_mib_size(struct b53_device *dev)
868{
869 if (is5365(dev))
870 return B53_MIBS_65_SIZE;
871 else if (is63xx(dev))
872 return B53_MIBS_63XX_SIZE;
873 else if (is58xx(dev))
874 return B53_MIBS_58XX_SIZE;
875 else
876 return B53_MIBS_SIZE;
877}
878
879static struct phy_device *b53_get_phy_device(struct dsa_switch *ds, int port)
880{
881 /* These ports typically do not have built-in PHYs */
882 switch (port) {
883 case B53_CPU_PORT_25:
884 case 7:
885 case B53_CPU_PORT:
886 return NULL;
887 }
888
889 return mdiobus_get_phy(ds->slave_mii_bus, port);
890}
891
892void b53_get_strings(struct dsa_switch *ds, int port, u32 stringset,
893 uint8_t *data)
894{
895 struct b53_device *dev = ds->priv;
896 const struct b53_mib_desc *mibs = b53_get_mib(dev);
897 unsigned int mib_size = b53_get_mib_size(dev);
898 struct phy_device *phydev;
899 unsigned int i;
900
901 if (stringset == ETH_SS_STATS) {
902 for (i = 0; i < mib_size; i++)
903 strlcpy(data + i * ETH_GSTRING_LEN,
904 mibs[i].name, ETH_GSTRING_LEN);
905 } else if (stringset == ETH_SS_PHY_STATS) {
906 phydev = b53_get_phy_device(ds, port);
907 if (!phydev)
908 return;
909
910 phy_ethtool_get_strings(phydev, data);
911 }
912}
913EXPORT_SYMBOL(b53_get_strings);
914
915void b53_get_ethtool_stats(struct dsa_switch *ds, int port, uint64_t *data)
916{
917 struct b53_device *dev = ds->priv;
918 const struct b53_mib_desc *mibs = b53_get_mib(dev);
919 unsigned int mib_size = b53_get_mib_size(dev);
920 const struct b53_mib_desc *s;
921 unsigned int i;
922 u64 val = 0;
923
924 if (is5365(dev) && port == 5)
925 port = 8;
926
927 mutex_lock(&dev->stats_mutex);
928
929 for (i = 0; i < mib_size; i++) {
930 s = &mibs[i];
931
932 if (s->size == 8) {
933 b53_read64(dev, B53_MIB_PAGE(port), s->offset, &val);
934 } else {
935 u32 val32;
936
937 b53_read32(dev, B53_MIB_PAGE(port), s->offset,
938 &val32);
939 val = val32;
940 }
941 data[i] = (u64)val;
942 }
943
944 mutex_unlock(&dev->stats_mutex);
945}
946EXPORT_SYMBOL(b53_get_ethtool_stats);
947
948void b53_get_ethtool_phy_stats(struct dsa_switch *ds, int port, uint64_t *data)
949{
950 struct phy_device *phydev;
951
952 phydev = b53_get_phy_device(ds, port);
953 if (!phydev)
954 return;
955
956 phy_ethtool_get_stats(phydev, NULL, data);
957}
958EXPORT_SYMBOL(b53_get_ethtool_phy_stats);
959
960int b53_get_sset_count(struct dsa_switch *ds, int port, int sset)
961{
962 struct b53_device *dev = ds->priv;
963 struct phy_device *phydev;
964
965 if (sset == ETH_SS_STATS) {
966 return b53_get_mib_size(dev);
967 } else if (sset == ETH_SS_PHY_STATS) {
968 phydev = b53_get_phy_device(ds, port);
969 if (!phydev)
970 return 0;
971
972 return phy_ethtool_get_sset_count(phydev);
973 }
974
975 return 0;
976}
977EXPORT_SYMBOL(b53_get_sset_count);
978
979static int b53_setup(struct dsa_switch *ds)
980{
981 struct b53_device *dev = ds->priv;
982 unsigned int port;
983 int ret;
984
985 ret = b53_reset_switch(dev);
986 if (ret) {
987 dev_err(ds->dev, "failed to reset switch\n");
988 return ret;
989 }
990
991 b53_reset_mib(dev);
992
993 ret = b53_apply_config(dev);
994 if (ret)
995 dev_err(ds->dev, "failed to apply configuration\n");
996
997 /* Configure IMP/CPU port, disable all other ports. Enabled
998 * ports will be configured with .port_enable
999 */
1000 for (port = 0; port < dev->num_ports; port++) {
1001 if (dsa_is_cpu_port(ds, port))
1002 b53_enable_cpu_port(dev, port);
1003 else
1004 b53_disable_port(ds, port);
1005 }
1006
1007 /* Let DSA handle the case were multiple bridges span the same switch
1008 * device and different VLAN awareness settings are requested, which
1009 * would be breaking filtering semantics for any of the other bridge
1010 * devices. (not hardware supported)
1011 */
1012 ds->vlan_filtering_is_global = true;
1013
1014 return ret;
1015}
1016
1017static void b53_force_link(struct b53_device *dev, int port, int link)
1018{
1019 u8 reg, val, off;
1020
1021 /* Override the port settings */
1022 if (port == dev->cpu_port) {
1023 off = B53_PORT_OVERRIDE_CTRL;
1024 val = PORT_OVERRIDE_EN;
1025 } else {
1026 off = B53_GMII_PORT_OVERRIDE_CTRL(port);
1027 val = GMII_PO_EN;
1028 }
1029
1030 b53_read8(dev, B53_CTRL_PAGE, off, ®);
1031 reg |= val;
1032 if (link)
1033 reg |= PORT_OVERRIDE_LINK;
1034 else
1035 reg &= ~PORT_OVERRIDE_LINK;
1036 b53_write8(dev, B53_CTRL_PAGE, off, reg);
1037}
1038
1039static void b53_force_port_config(struct b53_device *dev, int port,
1040 int speed, int duplex,
1041 bool tx_pause, bool rx_pause)
1042{
1043 u8 reg, val, off;
1044
1045 /* Override the port settings */
1046 if (port == dev->cpu_port) {
1047 off = B53_PORT_OVERRIDE_CTRL;
1048 val = PORT_OVERRIDE_EN;
1049 } else {
1050 off = B53_GMII_PORT_OVERRIDE_CTRL(port);
1051 val = GMII_PO_EN;
1052 }
1053
1054 b53_read8(dev, B53_CTRL_PAGE, off, ®);
1055 reg |= val;
1056 if (duplex == DUPLEX_FULL)
1057 reg |= PORT_OVERRIDE_FULL_DUPLEX;
1058 else
1059 reg &= ~PORT_OVERRIDE_FULL_DUPLEX;
1060
1061 switch (speed) {
1062 case 2000:
1063 reg |= PORT_OVERRIDE_SPEED_2000M;
1064 fallthrough;
1065 case SPEED_1000:
1066 reg |= PORT_OVERRIDE_SPEED_1000M;
1067 break;
1068 case SPEED_100:
1069 reg |= PORT_OVERRIDE_SPEED_100M;
1070 break;
1071 case SPEED_10:
1072 reg |= PORT_OVERRIDE_SPEED_10M;
1073 break;
1074 default:
1075 dev_err(dev->dev, "unknown speed: %d\n", speed);
1076 return;
1077 }
1078
1079 if (rx_pause)
1080 reg |= PORT_OVERRIDE_RX_FLOW;
1081 if (tx_pause)
1082 reg |= PORT_OVERRIDE_TX_FLOW;
1083
1084 b53_write8(dev, B53_CTRL_PAGE, off, reg);
1085}
1086
1087static void b53_adjust_link(struct dsa_switch *ds, int port,
1088 struct phy_device *phydev)
1089{
1090 struct b53_device *dev = ds->priv;
1091 struct ethtool_eee *p = &dev->ports[port].eee;
1092 u8 rgmii_ctrl = 0, reg = 0, off;
1093 bool tx_pause = false;
1094 bool rx_pause = false;
1095
1096 if (!phy_is_pseudo_fixed_link(phydev))
1097 return;
1098
1099 /* Enable flow control on BCM5301x's CPU port */
1100 if (is5301x(dev) && port == dev->cpu_port)
1101 tx_pause = rx_pause = true;
1102
1103 if (phydev->pause) {
1104 if (phydev->asym_pause)
1105 tx_pause = true;
1106 rx_pause = true;
1107 }
1108
1109 b53_force_port_config(dev, port, phydev->speed, phydev->duplex,
1110 tx_pause, rx_pause);
1111 b53_force_link(dev, port, phydev->link);
1112
1113 if (is531x5(dev) && phy_interface_is_rgmii(phydev)) {
1114 if (port == 8)
1115 off = B53_RGMII_CTRL_IMP;
1116 else
1117 off = B53_RGMII_CTRL_P(port);
1118
1119 /* Configure the port RGMII clock delay by DLL disabled and
1120 * tx_clk aligned timing (restoring to reset defaults)
1121 */
1122 b53_read8(dev, B53_CTRL_PAGE, off, &rgmii_ctrl);
1123 rgmii_ctrl &= ~(RGMII_CTRL_DLL_RXC | RGMII_CTRL_DLL_TXC |
1124 RGMII_CTRL_TIMING_SEL);
1125
1126 /* PHY_INTERFACE_MODE_RGMII_TXID means TX internal delay, make
1127 * sure that we enable the port TX clock internal delay to
1128 * account for this internal delay that is inserted, otherwise
1129 * the switch won't be able to receive correctly.
1130 *
1131 * PHY_INTERFACE_MODE_RGMII means that we are not introducing
1132 * any delay neither on transmission nor reception, so the
1133 * BCM53125 must also be configured accordingly to account for
1134 * the lack of delay and introduce
1135 *
1136 * The BCM53125 switch has its RX clock and TX clock control
1137 * swapped, hence the reason why we modify the TX clock path in
1138 * the "RGMII" case
1139 */
1140 if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)
1141 rgmii_ctrl |= RGMII_CTRL_DLL_TXC;
1142 if (phydev->interface == PHY_INTERFACE_MODE_RGMII)
1143 rgmii_ctrl |= RGMII_CTRL_DLL_TXC | RGMII_CTRL_DLL_RXC;
1144 rgmii_ctrl |= RGMII_CTRL_TIMING_SEL;
1145 b53_write8(dev, B53_CTRL_PAGE, off, rgmii_ctrl);
1146
1147 dev_info(ds->dev, "Configured port %d for %s\n", port,
1148 phy_modes(phydev->interface));
1149 }
1150
1151 /* configure MII port if necessary */
1152 if (is5325(dev)) {
1153 b53_read8(dev, B53_CTRL_PAGE, B53_PORT_OVERRIDE_CTRL,
1154 ®);
1155
1156 /* reverse mii needs to be enabled */
1157 if (!(reg & PORT_OVERRIDE_RV_MII_25)) {
1158 b53_write8(dev, B53_CTRL_PAGE, B53_PORT_OVERRIDE_CTRL,
1159 reg | PORT_OVERRIDE_RV_MII_25);
1160 b53_read8(dev, B53_CTRL_PAGE, B53_PORT_OVERRIDE_CTRL,
1161 ®);
1162
1163 if (!(reg & PORT_OVERRIDE_RV_MII_25)) {
1164 dev_err(ds->dev,
1165 "Failed to enable reverse MII mode\n");
1166 return;
1167 }
1168 }
1169 } else if (is5301x(dev)) {
1170 if (port != dev->cpu_port) {
1171 b53_force_port_config(dev, dev->cpu_port, 2000,
1172 DUPLEX_FULL, true, true);
1173 b53_force_link(dev, dev->cpu_port, 1);
1174 }
1175 }
1176
1177 /* Re-negotiate EEE if it was enabled already */
1178 p->eee_enabled = b53_eee_init(ds, port, phydev);
1179}
1180
1181void b53_port_event(struct dsa_switch *ds, int port)
1182{
1183 struct b53_device *dev = ds->priv;
1184 bool link;
1185 u16 sts;
1186
1187 b53_read16(dev, B53_STAT_PAGE, B53_LINK_STAT, &sts);
1188 link = !!(sts & BIT(port));
1189 dsa_port_phylink_mac_change(ds, port, link);
1190}
1191EXPORT_SYMBOL(b53_port_event);
1192
1193void b53_phylink_validate(struct dsa_switch *ds, int port,
1194 unsigned long *supported,
1195 struct phylink_link_state *state)
1196{
1197 struct b53_device *dev = ds->priv;
1198 __ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = { 0, };
1199
1200 if (dev->ops->serdes_phylink_validate)
1201 dev->ops->serdes_phylink_validate(dev, port, mask, state);
1202
1203 /* Allow all the expected bits */
1204 phylink_set(mask, Autoneg);
1205 phylink_set_port_modes(mask);
1206 phylink_set(mask, Pause);
1207 phylink_set(mask, Asym_Pause);
1208
1209 /* With the exclusion of 5325/5365, MII, Reverse MII and 802.3z, we
1210 * support Gigabit, including Half duplex.
1211 */
1212 if (state->interface != PHY_INTERFACE_MODE_MII &&
1213 state->interface != PHY_INTERFACE_MODE_REVMII &&
1214 !phy_interface_mode_is_8023z(state->interface) &&
1215 !(is5325(dev) || is5365(dev))) {
1216 phylink_set(mask, 1000baseT_Full);
1217 phylink_set(mask, 1000baseT_Half);
1218 }
1219
1220 if (!phy_interface_mode_is_8023z(state->interface)) {
1221 phylink_set(mask, 10baseT_Half);
1222 phylink_set(mask, 10baseT_Full);
1223 phylink_set(mask, 100baseT_Half);
1224 phylink_set(mask, 100baseT_Full);
1225 }
1226
1227 bitmap_and(supported, supported, mask,
1228 __ETHTOOL_LINK_MODE_MASK_NBITS);
1229 bitmap_and(state->advertising, state->advertising, mask,
1230 __ETHTOOL_LINK_MODE_MASK_NBITS);
1231
1232 phylink_helper_basex_speed(state);
1233}
1234EXPORT_SYMBOL(b53_phylink_validate);
1235
1236int b53_phylink_mac_link_state(struct dsa_switch *ds, int port,
1237 struct phylink_link_state *state)
1238{
1239 struct b53_device *dev = ds->priv;
1240 int ret = -EOPNOTSUPP;
1241
1242 if ((phy_interface_mode_is_8023z(state->interface) ||
1243 state->interface == PHY_INTERFACE_MODE_SGMII) &&
1244 dev->ops->serdes_link_state)
1245 ret = dev->ops->serdes_link_state(dev, port, state);
1246
1247 return ret;
1248}
1249EXPORT_SYMBOL(b53_phylink_mac_link_state);
1250
1251void b53_phylink_mac_config(struct dsa_switch *ds, int port,
1252 unsigned int mode,
1253 const struct phylink_link_state *state)
1254{
1255 struct b53_device *dev = ds->priv;
1256
1257 if (mode == MLO_AN_PHY || mode == MLO_AN_FIXED)
1258 return;
1259
1260 if ((phy_interface_mode_is_8023z(state->interface) ||
1261 state->interface == PHY_INTERFACE_MODE_SGMII) &&
1262 dev->ops->serdes_config)
1263 dev->ops->serdes_config(dev, port, mode, state);
1264}
1265EXPORT_SYMBOL(b53_phylink_mac_config);
1266
1267void b53_phylink_mac_an_restart(struct dsa_switch *ds, int port)
1268{
1269 struct b53_device *dev = ds->priv;
1270
1271 if (dev->ops->serdes_an_restart)
1272 dev->ops->serdes_an_restart(dev, port);
1273}
1274EXPORT_SYMBOL(b53_phylink_mac_an_restart);
1275
1276void b53_phylink_mac_link_down(struct dsa_switch *ds, int port,
1277 unsigned int mode,
1278 phy_interface_t interface)
1279{
1280 struct b53_device *dev = ds->priv;
1281
1282 if (mode == MLO_AN_PHY)
1283 return;
1284
1285 if (mode == MLO_AN_FIXED) {
1286 b53_force_link(dev, port, false);
1287 return;
1288 }
1289
1290 if (phy_interface_mode_is_8023z(interface) &&
1291 dev->ops->serdes_link_set)
1292 dev->ops->serdes_link_set(dev, port, mode, interface, false);
1293}
1294EXPORT_SYMBOL(b53_phylink_mac_link_down);
1295
1296void b53_phylink_mac_link_up(struct dsa_switch *ds, int port,
1297 unsigned int mode,
1298 phy_interface_t interface,
1299 struct phy_device *phydev,
1300 int speed, int duplex,
1301 bool tx_pause, bool rx_pause)
1302{
1303 struct b53_device *dev = ds->priv;
1304
1305 if (mode == MLO_AN_PHY)
1306 return;
1307
1308 if (mode == MLO_AN_FIXED) {
1309 b53_force_port_config(dev, port, speed, duplex,
1310 tx_pause, rx_pause);
1311 b53_force_link(dev, port, true);
1312 return;
1313 }
1314
1315 if (phy_interface_mode_is_8023z(interface) &&
1316 dev->ops->serdes_link_set)
1317 dev->ops->serdes_link_set(dev, port, mode, interface, true);
1318}
1319EXPORT_SYMBOL(b53_phylink_mac_link_up);
1320
1321int b53_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering)
1322{
1323 struct b53_device *dev = ds->priv;
1324 u16 pvid, new_pvid;
1325
1326 b53_read16(dev, B53_VLAN_PAGE, B53_VLAN_PORT_DEF_TAG(port), &pvid);
1327 if (!vlan_filtering) {
1328 /* Filtering is currently enabled, use the default PVID since
1329 * the bridge does not expect tagging anymore
1330 */
1331 dev->ports[port].pvid = pvid;
1332 new_pvid = b53_default_pvid(dev);
1333 } else {
1334 /* Filtering is currently disabled, restore the previous PVID */
1335 new_pvid = dev->ports[port].pvid;
1336 }
1337
1338 if (pvid != new_pvid)
1339 b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_PORT_DEF_TAG(port),
1340 new_pvid);
1341
1342 b53_enable_vlan(dev, dev->vlan_enabled, vlan_filtering);
1343
1344 return 0;
1345}
1346EXPORT_SYMBOL(b53_vlan_filtering);
1347
1348int b53_vlan_prepare(struct dsa_switch *ds, int port,
1349 const struct switchdev_obj_port_vlan *vlan)
1350{
1351 struct b53_device *dev = ds->priv;
1352
1353 if ((is5325(dev) || is5365(dev)) && vlan->vid_begin == 0)
1354 return -EOPNOTSUPP;
1355
1356 /* Port 7 on 7278 connects to the ASP's UniMAC which is not capable of
1357 * receiving VLAN tagged frames at all, we can still allow the port to
1358 * be configured for egress untagged.
1359 */
1360 if (dev->chip_id == BCM7278_DEVICE_ID && port == 7 &&
1361 !(vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED))
1362 return -EINVAL;
1363
1364 if (vlan->vid_end > dev->num_vlans)
1365 return -ERANGE;
1366
1367 b53_enable_vlan(dev, true, ds->vlan_filtering);
1368
1369 return 0;
1370}
1371EXPORT_SYMBOL(b53_vlan_prepare);
1372
1373void b53_vlan_add(struct dsa_switch *ds, int port,
1374 const struct switchdev_obj_port_vlan *vlan)
1375{
1376 struct b53_device *dev = ds->priv;
1377 bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
1378 bool pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
1379 struct b53_vlan *vl;
1380 u16 vid;
1381
1382 for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) {
1383 vl = &dev->vlans[vid];
1384
1385 b53_get_vlan_entry(dev, vid, vl);
1386
1387 if (vid == 0 && vid == b53_default_pvid(dev))
1388 untagged = true;
1389
1390 vl->members |= BIT(port);
1391 if (untagged && !dsa_is_cpu_port(ds, port))
1392 vl->untag |= BIT(port);
1393 else
1394 vl->untag &= ~BIT(port);
1395
1396 b53_set_vlan_entry(dev, vid, vl);
1397 b53_fast_age_vlan(dev, vid);
1398 }
1399
1400 if (pvid && !dsa_is_cpu_port(ds, port)) {
1401 b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_PORT_DEF_TAG(port),
1402 vlan->vid_end);
1403 b53_fast_age_vlan(dev, vid);
1404 }
1405}
1406EXPORT_SYMBOL(b53_vlan_add);
1407
1408int b53_vlan_del(struct dsa_switch *ds, int port,
1409 const struct switchdev_obj_port_vlan *vlan)
1410{
1411 struct b53_device *dev = ds->priv;
1412 bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
1413 struct b53_vlan *vl;
1414 u16 vid;
1415 u16 pvid;
1416
1417 b53_read16(dev, B53_VLAN_PAGE, B53_VLAN_PORT_DEF_TAG(port), &pvid);
1418
1419 for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) {
1420 vl = &dev->vlans[vid];
1421
1422 b53_get_vlan_entry(dev, vid, vl);
1423
1424 vl->members &= ~BIT(port);
1425
1426 if (pvid == vid)
1427 pvid = b53_default_pvid(dev);
1428
1429 if (untagged && !dsa_is_cpu_port(ds, port))
1430 vl->untag &= ~(BIT(port));
1431
1432 b53_set_vlan_entry(dev, vid, vl);
1433 b53_fast_age_vlan(dev, vid);
1434 }
1435
1436 b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_PORT_DEF_TAG(port), pvid);
1437 b53_fast_age_vlan(dev, pvid);
1438
1439 return 0;
1440}
1441EXPORT_SYMBOL(b53_vlan_del);
1442
1443/* Address Resolution Logic routines */
1444static int b53_arl_op_wait(struct b53_device *dev)
1445{
1446 unsigned int timeout = 10;
1447 u8 reg;
1448
1449 do {
1450 b53_read8(dev, B53_ARLIO_PAGE, B53_ARLTBL_RW_CTRL, ®);
1451 if (!(reg & ARLTBL_START_DONE))
1452 return 0;
1453
1454 usleep_range(1000, 2000);
1455 } while (timeout--);
1456
1457 dev_warn(dev->dev, "timeout waiting for ARL to finish: 0x%02x\n", reg);
1458
1459 return -ETIMEDOUT;
1460}
1461
1462static int b53_arl_rw_op(struct b53_device *dev, unsigned int op)
1463{
1464 u8 reg;
1465
1466 if (op > ARLTBL_RW)
1467 return -EINVAL;
1468
1469 b53_read8(dev, B53_ARLIO_PAGE, B53_ARLTBL_RW_CTRL, ®);
1470 reg |= ARLTBL_START_DONE;
1471 if (op)
1472 reg |= ARLTBL_RW;
1473 else
1474 reg &= ~ARLTBL_RW;
1475 if (dev->vlan_enabled)
1476 reg &= ~ARLTBL_IVL_SVL_SELECT;
1477 else
1478 reg |= ARLTBL_IVL_SVL_SELECT;
1479 b53_write8(dev, B53_ARLIO_PAGE, B53_ARLTBL_RW_CTRL, reg);
1480
1481 return b53_arl_op_wait(dev);
1482}
1483
1484static int b53_arl_read(struct b53_device *dev, u64 mac,
1485 u16 vid, struct b53_arl_entry *ent, u8 *idx)
1486{
1487 DECLARE_BITMAP(free_bins, B53_ARLTBL_MAX_BIN_ENTRIES);
1488 unsigned int i;
1489 int ret;
1490
1491 ret = b53_arl_op_wait(dev);
1492 if (ret)
1493 return ret;
1494
1495 bitmap_zero(free_bins, dev->num_arl_bins);
1496
1497 /* Read the bins */
1498 for (i = 0; i < dev->num_arl_bins; i++) {
1499 u64 mac_vid;
1500 u32 fwd_entry;
1501
1502 b53_read64(dev, B53_ARLIO_PAGE,
1503 B53_ARLTBL_MAC_VID_ENTRY(i), &mac_vid);
1504 b53_read32(dev, B53_ARLIO_PAGE,
1505 B53_ARLTBL_DATA_ENTRY(i), &fwd_entry);
1506 b53_arl_to_entry(ent, mac_vid, fwd_entry);
1507
1508 if (!(fwd_entry & ARLTBL_VALID)) {
1509 set_bit(i, free_bins);
1510 continue;
1511 }
1512 if ((mac_vid & ARLTBL_MAC_MASK) != mac)
1513 continue;
1514 if (dev->vlan_enabled &&
1515 ((mac_vid >> ARLTBL_VID_S) & ARLTBL_VID_MASK) != vid)
1516 continue;
1517 *idx = i;
1518 return 0;
1519 }
1520
1521 if (bitmap_weight(free_bins, dev->num_arl_bins) == 0)
1522 return -ENOSPC;
1523
1524 *idx = find_first_bit(free_bins, dev->num_arl_bins);
1525
1526 return -ENOENT;
1527}
1528
1529static int b53_arl_op(struct b53_device *dev, int op, int port,
1530 const unsigned char *addr, u16 vid, bool is_valid)
1531{
1532 struct b53_arl_entry ent;
1533 u32 fwd_entry;
1534 u64 mac, mac_vid = 0;
1535 u8 idx = 0;
1536 int ret;
1537
1538 /* Convert the array into a 64-bit MAC */
1539 mac = ether_addr_to_u64(addr);
1540
1541 /* Perform a read for the given MAC and VID */
1542 b53_write48(dev, B53_ARLIO_PAGE, B53_MAC_ADDR_IDX, mac);
1543 b53_write16(dev, B53_ARLIO_PAGE, B53_VLAN_ID_IDX, vid);
1544
1545 /* Issue a read operation for this MAC */
1546 ret = b53_arl_rw_op(dev, 1);
1547 if (ret)
1548 return ret;
1549
1550 ret = b53_arl_read(dev, mac, vid, &ent, &idx);
1551
1552 /* If this is a read, just finish now */
1553 if (op)
1554 return ret;
1555
1556 switch (ret) {
1557 case -ETIMEDOUT:
1558 return ret;
1559 case -ENOSPC:
1560 dev_dbg(dev->dev, "{%pM,%.4d} no space left in ARL\n",
1561 addr, vid);
1562 return is_valid ? ret : 0;
1563 case -ENOENT:
1564 /* We could not find a matching MAC, so reset to a new entry */
1565 dev_dbg(dev->dev, "{%pM,%.4d} not found, using idx: %d\n",
1566 addr, vid, idx);
1567 fwd_entry = 0;
1568 break;
1569 default:
1570 dev_dbg(dev->dev, "{%pM,%.4d} found, using idx: %d\n",
1571 addr, vid, idx);
1572 break;
1573 }
1574
1575 /* For multicast address, the port is a bitmask and the validity
1576 * is determined by having at least one port being still active
1577 */
1578 if (!is_multicast_ether_addr(addr)) {
1579 ent.port = port;
1580 ent.is_valid = is_valid;
1581 } else {
1582 if (is_valid)
1583 ent.port |= BIT(port);
1584 else
1585 ent.port &= ~BIT(port);
1586
1587 ent.is_valid = !!(ent.port);
1588 }
1589
1590 ent.vid = vid;
1591 ent.is_static = true;
1592 ent.is_age = false;
1593 memcpy(ent.mac, addr, ETH_ALEN);
1594 b53_arl_from_entry(&mac_vid, &fwd_entry, &ent);
1595
1596 b53_write64(dev, B53_ARLIO_PAGE,
1597 B53_ARLTBL_MAC_VID_ENTRY(idx), mac_vid);
1598 b53_write32(dev, B53_ARLIO_PAGE,
1599 B53_ARLTBL_DATA_ENTRY(idx), fwd_entry);
1600
1601 return b53_arl_rw_op(dev, 0);
1602}
1603
1604int b53_fdb_add(struct dsa_switch *ds, int port,
1605 const unsigned char *addr, u16 vid)
1606{
1607 struct b53_device *priv = ds->priv;
1608
1609 /* 5325 and 5365 require some more massaging, but could
1610 * be supported eventually
1611 */
1612 if (is5325(priv) || is5365(priv))
1613 return -EOPNOTSUPP;
1614
1615 return b53_arl_op(priv, 0, port, addr, vid, true);
1616}
1617EXPORT_SYMBOL(b53_fdb_add);
1618
1619int b53_fdb_del(struct dsa_switch *ds, int port,
1620 const unsigned char *addr, u16 vid)
1621{
1622 struct b53_device *priv = ds->priv;
1623
1624 return b53_arl_op(priv, 0, port, addr, vid, false);
1625}
1626EXPORT_SYMBOL(b53_fdb_del);
1627
1628static int b53_arl_search_wait(struct b53_device *dev)
1629{
1630 unsigned int timeout = 1000;
1631 u8 reg;
1632
1633 do {
1634 b53_read8(dev, B53_ARLIO_PAGE, B53_ARL_SRCH_CTL, ®);
1635 if (!(reg & ARL_SRCH_STDN))
1636 return 0;
1637
1638 if (reg & ARL_SRCH_VLID)
1639 return 0;
1640
1641 usleep_range(1000, 2000);
1642 } while (timeout--);
1643
1644 return -ETIMEDOUT;
1645}
1646
1647static void b53_arl_search_rd(struct b53_device *dev, u8 idx,
1648 struct b53_arl_entry *ent)
1649{
1650 u64 mac_vid;
1651 u32 fwd_entry;
1652
1653 b53_read64(dev, B53_ARLIO_PAGE,
1654 B53_ARL_SRCH_RSTL_MACVID(idx), &mac_vid);
1655 b53_read32(dev, B53_ARLIO_PAGE,
1656 B53_ARL_SRCH_RSTL(idx), &fwd_entry);
1657 b53_arl_to_entry(ent, mac_vid, fwd_entry);
1658}
1659
1660static int b53_fdb_copy(int port, const struct b53_arl_entry *ent,
1661 dsa_fdb_dump_cb_t *cb, void *data)
1662{
1663 if (!ent->is_valid)
1664 return 0;
1665
1666 if (port != ent->port)
1667 return 0;
1668
1669 return cb(ent->mac, ent->vid, ent->is_static, data);
1670}
1671
1672int b53_fdb_dump(struct dsa_switch *ds, int port,
1673 dsa_fdb_dump_cb_t *cb, void *data)
1674{
1675 struct b53_device *priv = ds->priv;
1676 struct b53_arl_entry results[2];
1677 unsigned int count = 0;
1678 int ret;
1679 u8 reg;
1680
1681 /* Start search operation */
1682 reg = ARL_SRCH_STDN;
1683 b53_write8(priv, B53_ARLIO_PAGE, B53_ARL_SRCH_CTL, reg);
1684
1685 do {
1686 ret = b53_arl_search_wait(priv);
1687 if (ret)
1688 return ret;
1689
1690 b53_arl_search_rd(priv, 0, &results[0]);
1691 ret = b53_fdb_copy(port, &results[0], cb, data);
1692 if (ret)
1693 return ret;
1694
1695 if (priv->num_arl_bins > 2) {
1696 b53_arl_search_rd(priv, 1, &results[1]);
1697 ret = b53_fdb_copy(port, &results[1], cb, data);
1698 if (ret)
1699 return ret;
1700
1701 if (!results[0].is_valid && !results[1].is_valid)
1702 break;
1703 }
1704
1705 } while (count++ < b53_max_arl_entries(priv) / 2);
1706
1707 return 0;
1708}
1709EXPORT_SYMBOL(b53_fdb_dump);
1710
1711int b53_mdb_prepare(struct dsa_switch *ds, int port,
1712 const struct switchdev_obj_port_mdb *mdb)
1713{
1714 struct b53_device *priv = ds->priv;
1715
1716 /* 5325 and 5365 require some more massaging, but could
1717 * be supported eventually
1718 */
1719 if (is5325(priv) || is5365(priv))
1720 return -EOPNOTSUPP;
1721
1722 return 0;
1723}
1724EXPORT_SYMBOL(b53_mdb_prepare);
1725
1726void b53_mdb_add(struct dsa_switch *ds, int port,
1727 const struct switchdev_obj_port_mdb *mdb)
1728{
1729 struct b53_device *priv = ds->priv;
1730 int ret;
1731
1732 ret = b53_arl_op(priv, 0, port, mdb->addr, mdb->vid, true);
1733 if (ret)
1734 dev_err(ds->dev, "failed to add MDB entry\n");
1735}
1736EXPORT_SYMBOL(b53_mdb_add);
1737
1738int b53_mdb_del(struct dsa_switch *ds, int port,
1739 const struct switchdev_obj_port_mdb *mdb)
1740{
1741 struct b53_device *priv = ds->priv;
1742 int ret;
1743
1744 ret = b53_arl_op(priv, 0, port, mdb->addr, mdb->vid, false);
1745 if (ret)
1746 dev_err(ds->dev, "failed to delete MDB entry\n");
1747
1748 return ret;
1749}
1750EXPORT_SYMBOL(b53_mdb_del);
1751
1752int b53_br_join(struct dsa_switch *ds, int port, struct net_device *br)
1753{
1754 struct b53_device *dev = ds->priv;
1755 s8 cpu_port = dsa_to_port(ds, port)->cpu_dp->index;
1756 u16 pvlan, reg;
1757 unsigned int i;
1758
1759 /* On 7278, port 7 which connects to the ASP should only receive
1760 * traffic from matching CFP rules.
1761 */
1762 if (dev->chip_id == BCM7278_DEVICE_ID && port == 7)
1763 return -EINVAL;
1764
1765 /* Make this port leave the all VLANs join since we will have proper
1766 * VLAN entries from now on
1767 */
1768 if (is58xx(dev)) {
1769 b53_read16(dev, B53_VLAN_PAGE, B53_JOIN_ALL_VLAN_EN, ®);
1770 reg &= ~BIT(port);
1771 if ((reg & BIT(cpu_port)) == BIT(cpu_port))
1772 reg &= ~BIT(cpu_port);
1773 b53_write16(dev, B53_VLAN_PAGE, B53_JOIN_ALL_VLAN_EN, reg);
1774 }
1775
1776 b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), &pvlan);
1777
1778 b53_for_each_port(dev, i) {
1779 if (dsa_to_port(ds, i)->bridge_dev != br)
1780 continue;
1781
1782 /* Add this local port to the remote port VLAN control
1783 * membership and update the remote port bitmask
1784 */
1785 b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), ®);
1786 reg |= BIT(port);
1787 b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), reg);
1788 dev->ports[i].vlan_ctl_mask = reg;
1789
1790 pvlan |= BIT(i);
1791 }
1792
1793 /* Configure the local port VLAN control membership to include
1794 * remote ports and update the local port bitmask
1795 */
1796 b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), pvlan);
1797 dev->ports[port].vlan_ctl_mask = pvlan;
1798
1799 return 0;
1800}
1801EXPORT_SYMBOL(b53_br_join);
1802
1803void b53_br_leave(struct dsa_switch *ds, int port, struct net_device *br)
1804{
1805 struct b53_device *dev = ds->priv;
1806 struct b53_vlan *vl = &dev->vlans[0];
1807 s8 cpu_port = dsa_to_port(ds, port)->cpu_dp->index;
1808 unsigned int i;
1809 u16 pvlan, reg, pvid;
1810
1811 b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), &pvlan);
1812
1813 b53_for_each_port(dev, i) {
1814 /* Don't touch the remaining ports */
1815 if (dsa_to_port(ds, i)->bridge_dev != br)
1816 continue;
1817
1818 b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), ®);
1819 reg &= ~BIT(port);
1820 b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), reg);
1821 dev->ports[port].vlan_ctl_mask = reg;
1822
1823 /* Prevent self removal to preserve isolation */
1824 if (port != i)
1825 pvlan &= ~BIT(i);
1826 }
1827
1828 b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), pvlan);
1829 dev->ports[port].vlan_ctl_mask = pvlan;
1830
1831 pvid = b53_default_pvid(dev);
1832
1833 /* Make this port join all VLANs without VLAN entries */
1834 if (is58xx(dev)) {
1835 b53_read16(dev, B53_VLAN_PAGE, B53_JOIN_ALL_VLAN_EN, ®);
1836 reg |= BIT(port);
1837 if (!(reg & BIT(cpu_port)))
1838 reg |= BIT(cpu_port);
1839 b53_write16(dev, B53_VLAN_PAGE, B53_JOIN_ALL_VLAN_EN, reg);
1840 } else {
1841 b53_get_vlan_entry(dev, pvid, vl);
1842 vl->members |= BIT(port) | BIT(cpu_port);
1843 vl->untag |= BIT(port) | BIT(cpu_port);
1844 b53_set_vlan_entry(dev, pvid, vl);
1845 }
1846}
1847EXPORT_SYMBOL(b53_br_leave);
1848
1849void b53_br_set_stp_state(struct dsa_switch *ds, int port, u8 state)
1850{
1851 struct b53_device *dev = ds->priv;
1852 u8 hw_state;
1853 u8 reg;
1854
1855 switch (state) {
1856 case BR_STATE_DISABLED:
1857 hw_state = PORT_CTRL_DIS_STATE;
1858 break;
1859 case BR_STATE_LISTENING:
1860 hw_state = PORT_CTRL_LISTEN_STATE;
1861 break;
1862 case BR_STATE_LEARNING:
1863 hw_state = PORT_CTRL_LEARN_STATE;
1864 break;
1865 case BR_STATE_FORWARDING:
1866 hw_state = PORT_CTRL_FWD_STATE;
1867 break;
1868 case BR_STATE_BLOCKING:
1869 hw_state = PORT_CTRL_BLOCK_STATE;
1870 break;
1871 default:
1872 dev_err(ds->dev, "invalid STP state: %d\n", state);
1873 return;
1874 }
1875
1876 b53_read8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), ®);
1877 reg &= ~PORT_CTRL_STP_STATE_MASK;
1878 reg |= hw_state;
1879 b53_write8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), reg);
1880}
1881EXPORT_SYMBOL(b53_br_set_stp_state);
1882
1883void b53_br_fast_age(struct dsa_switch *ds, int port)
1884{
1885 struct b53_device *dev = ds->priv;
1886
1887 if (b53_fast_age_port(dev, port))
1888 dev_err(ds->dev, "fast ageing failed\n");
1889}
1890EXPORT_SYMBOL(b53_br_fast_age);
1891
1892int b53_br_egress_floods(struct dsa_switch *ds, int port,
1893 bool unicast, bool multicast)
1894{
1895 struct b53_device *dev = ds->priv;
1896 u16 uc, mc;
1897
1898 b53_read16(dev, B53_CTRL_PAGE, B53_UC_FLOOD_MASK, &uc);
1899 if (unicast)
1900 uc |= BIT(port);
1901 else
1902 uc &= ~BIT(port);
1903 b53_write16(dev, B53_CTRL_PAGE, B53_UC_FLOOD_MASK, uc);
1904
1905 b53_read16(dev, B53_CTRL_PAGE, B53_MC_FLOOD_MASK, &mc);
1906 if (multicast)
1907 mc |= BIT(port);
1908 else
1909 mc &= ~BIT(port);
1910 b53_write16(dev, B53_CTRL_PAGE, B53_MC_FLOOD_MASK, mc);
1911
1912 b53_read16(dev, B53_CTRL_PAGE, B53_IPMC_FLOOD_MASK, &mc);
1913 if (multicast)
1914 mc |= BIT(port);
1915 else
1916 mc &= ~BIT(port);
1917 b53_write16(dev, B53_CTRL_PAGE, B53_IPMC_FLOOD_MASK, mc);
1918
1919 return 0;
1920
1921}
1922EXPORT_SYMBOL(b53_br_egress_floods);
1923
1924static bool b53_possible_cpu_port(struct dsa_switch *ds, int port)
1925{
1926 /* Broadcom switches will accept enabling Broadcom tags on the
1927 * following ports: 5, 7 and 8, any other port is not supported
1928 */
1929 switch (port) {
1930 case B53_CPU_PORT_25:
1931 case 7:
1932 case B53_CPU_PORT:
1933 return true;
1934 }
1935
1936 return false;
1937}
1938
1939static bool b53_can_enable_brcm_tags(struct dsa_switch *ds, int port,
1940 enum dsa_tag_protocol tag_protocol)
1941{
1942 bool ret = b53_possible_cpu_port(ds, port);
1943
1944 if (!ret) {
1945 dev_warn(ds->dev, "Port %d is not Broadcom tag capable\n",
1946 port);
1947 return ret;
1948 }
1949
1950 switch (tag_protocol) {
1951 case DSA_TAG_PROTO_BRCM:
1952 case DSA_TAG_PROTO_BRCM_PREPEND:
1953 dev_warn(ds->dev,
1954 "Port %d is stacked to Broadcom tag switch\n", port);
1955 ret = false;
1956 break;
1957 default:
1958 ret = true;
1959 break;
1960 }
1961
1962 return ret;
1963}
1964
1965enum dsa_tag_protocol b53_get_tag_protocol(struct dsa_switch *ds, int port,
1966 enum dsa_tag_protocol mprot)
1967{
1968 struct b53_device *dev = ds->priv;
1969
1970 /* Older models (5325, 5365) support a different tag format that we do
1971 * not support in net/dsa/tag_brcm.c yet.
1972 */
1973 if (is5325(dev) || is5365(dev) ||
1974 !b53_can_enable_brcm_tags(ds, port, mprot)) {
1975 dev->tag_protocol = DSA_TAG_PROTO_NONE;
1976 goto out;
1977 }
1978
1979 /* Broadcom BCM58xx chips have a flow accelerator on Port 8
1980 * which requires us to use the prepended Broadcom tag type
1981 */
1982 if (dev->chip_id == BCM58XX_DEVICE_ID && port == B53_CPU_PORT) {
1983 dev->tag_protocol = DSA_TAG_PROTO_BRCM_PREPEND;
1984 goto out;
1985 }
1986
1987 dev->tag_protocol = DSA_TAG_PROTO_BRCM;
1988out:
1989 return dev->tag_protocol;
1990}
1991EXPORT_SYMBOL(b53_get_tag_protocol);
1992
1993int b53_mirror_add(struct dsa_switch *ds, int port,
1994 struct dsa_mall_mirror_tc_entry *mirror, bool ingress)
1995{
1996 struct b53_device *dev = ds->priv;
1997 u16 reg, loc;
1998
1999 if (ingress)
2000 loc = B53_IG_MIR_CTL;
2001 else
2002 loc = B53_EG_MIR_CTL;
2003
2004 b53_read16(dev, B53_MGMT_PAGE, loc, ®);
2005 reg |= BIT(port);
2006 b53_write16(dev, B53_MGMT_PAGE, loc, reg);
2007
2008 b53_read16(dev, B53_MGMT_PAGE, B53_MIR_CAP_CTL, ®);
2009 reg &= ~CAP_PORT_MASK;
2010 reg |= mirror->to_local_port;
2011 reg |= MIRROR_EN;
2012 b53_write16(dev, B53_MGMT_PAGE, B53_MIR_CAP_CTL, reg);
2013
2014 return 0;
2015}
2016EXPORT_SYMBOL(b53_mirror_add);
2017
2018void b53_mirror_del(struct dsa_switch *ds, int port,
2019 struct dsa_mall_mirror_tc_entry *mirror)
2020{
2021 struct b53_device *dev = ds->priv;
2022 bool loc_disable = false, other_loc_disable = false;
2023 u16 reg, loc;
2024
2025 if (mirror->ingress)
2026 loc = B53_IG_MIR_CTL;
2027 else
2028 loc = B53_EG_MIR_CTL;
2029
2030 /* Update the desired ingress/egress register */
2031 b53_read16(dev, B53_MGMT_PAGE, loc, ®);
2032 reg &= ~BIT(port);
2033 if (!(reg & MIRROR_MASK))
2034 loc_disable = true;
2035 b53_write16(dev, B53_MGMT_PAGE, loc, reg);
2036
2037 /* Now look at the other one to know if we can disable mirroring
2038 * entirely
2039 */
2040 if (mirror->ingress)
2041 b53_read16(dev, B53_MGMT_PAGE, B53_EG_MIR_CTL, ®);
2042 else
2043 b53_read16(dev, B53_MGMT_PAGE, B53_IG_MIR_CTL, ®);
2044 if (!(reg & MIRROR_MASK))
2045 other_loc_disable = true;
2046
2047 b53_read16(dev, B53_MGMT_PAGE, B53_MIR_CAP_CTL, ®);
2048 /* Both no longer have ports, let's disable mirroring */
2049 if (loc_disable && other_loc_disable) {
2050 reg &= ~MIRROR_EN;
2051 reg &= ~mirror->to_local_port;
2052 }
2053 b53_write16(dev, B53_MGMT_PAGE, B53_MIR_CAP_CTL, reg);
2054}
2055EXPORT_SYMBOL(b53_mirror_del);
2056
2057void b53_eee_enable_set(struct dsa_switch *ds, int port, bool enable)
2058{
2059 struct b53_device *dev = ds->priv;
2060 u16 reg;
2061
2062 b53_read16(dev, B53_EEE_PAGE, B53_EEE_EN_CTRL, ®);
2063 if (enable)
2064 reg |= BIT(port);
2065 else
2066 reg &= ~BIT(port);
2067 b53_write16(dev, B53_EEE_PAGE, B53_EEE_EN_CTRL, reg);
2068}
2069EXPORT_SYMBOL(b53_eee_enable_set);
2070
2071
2072/* Returns 0 if EEE was not enabled, or 1 otherwise
2073 */
2074int b53_eee_init(struct dsa_switch *ds, int port, struct phy_device *phy)
2075{
2076 int ret;
2077
2078 ret = phy_init_eee(phy, 0);
2079 if (ret)
2080 return 0;
2081
2082 b53_eee_enable_set(ds, port, true);
2083
2084 return 1;
2085}
2086EXPORT_SYMBOL(b53_eee_init);
2087
2088int b53_get_mac_eee(struct dsa_switch *ds, int port, struct ethtool_eee *e)
2089{
2090 struct b53_device *dev = ds->priv;
2091 struct ethtool_eee *p = &dev->ports[port].eee;
2092 u16 reg;
2093
2094 if (is5325(dev) || is5365(dev))
2095 return -EOPNOTSUPP;
2096
2097 b53_read16(dev, B53_EEE_PAGE, B53_EEE_LPI_INDICATE, ®);
2098 e->eee_enabled = p->eee_enabled;
2099 e->eee_active = !!(reg & BIT(port));
2100
2101 return 0;
2102}
2103EXPORT_SYMBOL(b53_get_mac_eee);
2104
2105int b53_set_mac_eee(struct dsa_switch *ds, int port, struct ethtool_eee *e)
2106{
2107 struct b53_device *dev = ds->priv;
2108 struct ethtool_eee *p = &dev->ports[port].eee;
2109
2110 if (is5325(dev) || is5365(dev))
2111 return -EOPNOTSUPP;
2112
2113 p->eee_enabled = e->eee_enabled;
2114 b53_eee_enable_set(ds, port, e->eee_enabled);
2115
2116 return 0;
2117}
2118EXPORT_SYMBOL(b53_set_mac_eee);
2119
2120static int b53_change_mtu(struct dsa_switch *ds, int port, int mtu)
2121{
2122 struct b53_device *dev = ds->priv;
2123 bool enable_jumbo;
2124 bool allow_10_100;
2125
2126 if (is5325(dev) || is5365(dev))
2127 return -EOPNOTSUPP;
2128
2129 enable_jumbo = (mtu >= JMS_MIN_SIZE);
2130 allow_10_100 = (dev->chip_id == BCM583XX_DEVICE_ID);
2131
2132 return b53_set_jumbo(dev, enable_jumbo, allow_10_100);
2133}
2134
2135static int b53_get_max_mtu(struct dsa_switch *ds, int port)
2136{
2137 return JMS_MAX_SIZE;
2138}
2139
2140static const struct dsa_switch_ops b53_switch_ops = {
2141 .get_tag_protocol = b53_get_tag_protocol,
2142 .setup = b53_setup,
2143 .get_strings = b53_get_strings,
2144 .get_ethtool_stats = b53_get_ethtool_stats,
2145 .get_sset_count = b53_get_sset_count,
2146 .get_ethtool_phy_stats = b53_get_ethtool_phy_stats,
2147 .phy_read = b53_phy_read16,
2148 .phy_write = b53_phy_write16,
2149 .adjust_link = b53_adjust_link,
2150 .phylink_validate = b53_phylink_validate,
2151 .phylink_mac_link_state = b53_phylink_mac_link_state,
2152 .phylink_mac_config = b53_phylink_mac_config,
2153 .phylink_mac_an_restart = b53_phylink_mac_an_restart,
2154 .phylink_mac_link_down = b53_phylink_mac_link_down,
2155 .phylink_mac_link_up = b53_phylink_mac_link_up,
2156 .port_enable = b53_enable_port,
2157 .port_disable = b53_disable_port,
2158 .get_mac_eee = b53_get_mac_eee,
2159 .set_mac_eee = b53_set_mac_eee,
2160 .port_bridge_join = b53_br_join,
2161 .port_bridge_leave = b53_br_leave,
2162 .port_stp_state_set = b53_br_set_stp_state,
2163 .port_fast_age = b53_br_fast_age,
2164 .port_egress_floods = b53_br_egress_floods,
2165 .port_vlan_filtering = b53_vlan_filtering,
2166 .port_vlan_prepare = b53_vlan_prepare,
2167 .port_vlan_add = b53_vlan_add,
2168 .port_vlan_del = b53_vlan_del,
2169 .port_fdb_dump = b53_fdb_dump,
2170 .port_fdb_add = b53_fdb_add,
2171 .port_fdb_del = b53_fdb_del,
2172 .port_mirror_add = b53_mirror_add,
2173 .port_mirror_del = b53_mirror_del,
2174 .port_mdb_prepare = b53_mdb_prepare,
2175 .port_mdb_add = b53_mdb_add,
2176 .port_mdb_del = b53_mdb_del,
2177 .port_max_mtu = b53_get_max_mtu,
2178 .port_change_mtu = b53_change_mtu,
2179};
2180
2181struct b53_chip_data {
2182 u32 chip_id;
2183 const char *dev_name;
2184 u16 vlans;
2185 u16 enabled_ports;
2186 u8 cpu_port;
2187 u8 vta_regs[3];
2188 u8 arl_bins;
2189 u16 arl_buckets;
2190 u8 duplex_reg;
2191 u8 jumbo_pm_reg;
2192 u8 jumbo_size_reg;
2193};
2194
2195#define B53_VTA_REGS \
2196 { B53_VT_ACCESS, B53_VT_INDEX, B53_VT_ENTRY }
2197#define B53_VTA_REGS_9798 \
2198 { B53_VT_ACCESS_9798, B53_VT_INDEX_9798, B53_VT_ENTRY_9798 }
2199#define B53_VTA_REGS_63XX \
2200 { B53_VT_ACCESS_63XX, B53_VT_INDEX_63XX, B53_VT_ENTRY_63XX }
2201
2202static const struct b53_chip_data b53_switch_chips[] = {
2203 {
2204 .chip_id = BCM5325_DEVICE_ID,
2205 .dev_name = "BCM5325",
2206 .vlans = 16,
2207 .enabled_ports = 0x1f,
2208 .arl_bins = 2,
2209 .arl_buckets = 1024,
2210 .cpu_port = B53_CPU_PORT_25,
2211 .duplex_reg = B53_DUPLEX_STAT_FE,
2212 },
2213 {
2214 .chip_id = BCM5365_DEVICE_ID,
2215 .dev_name = "BCM5365",
2216 .vlans = 256,
2217 .enabled_ports = 0x1f,
2218 .arl_bins = 2,
2219 .arl_buckets = 1024,
2220 .cpu_port = B53_CPU_PORT_25,
2221 .duplex_reg = B53_DUPLEX_STAT_FE,
2222 },
2223 {
2224 .chip_id = BCM5389_DEVICE_ID,
2225 .dev_name = "BCM5389",
2226 .vlans = 4096,
2227 .enabled_ports = 0x1f,
2228 .arl_bins = 4,
2229 .arl_buckets = 1024,
2230 .cpu_port = B53_CPU_PORT,
2231 .vta_regs = B53_VTA_REGS,
2232 .duplex_reg = B53_DUPLEX_STAT_GE,
2233 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2234 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2235 },
2236 {
2237 .chip_id = BCM5395_DEVICE_ID,
2238 .dev_name = "BCM5395",
2239 .vlans = 4096,
2240 .enabled_ports = 0x1f,
2241 .arl_bins = 4,
2242 .arl_buckets = 1024,
2243 .cpu_port = B53_CPU_PORT,
2244 .vta_regs = B53_VTA_REGS,
2245 .duplex_reg = B53_DUPLEX_STAT_GE,
2246 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2247 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2248 },
2249 {
2250 .chip_id = BCM5397_DEVICE_ID,
2251 .dev_name = "BCM5397",
2252 .vlans = 4096,
2253 .enabled_ports = 0x1f,
2254 .arl_bins = 4,
2255 .arl_buckets = 1024,
2256 .cpu_port = B53_CPU_PORT,
2257 .vta_regs = B53_VTA_REGS_9798,
2258 .duplex_reg = B53_DUPLEX_STAT_GE,
2259 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2260 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2261 },
2262 {
2263 .chip_id = BCM5398_DEVICE_ID,
2264 .dev_name = "BCM5398",
2265 .vlans = 4096,
2266 .enabled_ports = 0x7f,
2267 .arl_bins = 4,
2268 .arl_buckets = 1024,
2269 .cpu_port = B53_CPU_PORT,
2270 .vta_regs = B53_VTA_REGS_9798,
2271 .duplex_reg = B53_DUPLEX_STAT_GE,
2272 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2273 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2274 },
2275 {
2276 .chip_id = BCM53115_DEVICE_ID,
2277 .dev_name = "BCM53115",
2278 .vlans = 4096,
2279 .enabled_ports = 0x1f,
2280 .arl_bins = 4,
2281 .arl_buckets = 1024,
2282 .vta_regs = B53_VTA_REGS,
2283 .cpu_port = B53_CPU_PORT,
2284 .duplex_reg = B53_DUPLEX_STAT_GE,
2285 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2286 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2287 },
2288 {
2289 .chip_id = BCM53125_DEVICE_ID,
2290 .dev_name = "BCM53125",
2291 .vlans = 4096,
2292 .enabled_ports = 0xff,
2293 .arl_bins = 4,
2294 .arl_buckets = 1024,
2295 .cpu_port = B53_CPU_PORT,
2296 .vta_regs = B53_VTA_REGS,
2297 .duplex_reg = B53_DUPLEX_STAT_GE,
2298 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2299 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2300 },
2301 {
2302 .chip_id = BCM53128_DEVICE_ID,
2303 .dev_name = "BCM53128",
2304 .vlans = 4096,
2305 .enabled_ports = 0x1ff,
2306 .arl_bins = 4,
2307 .arl_buckets = 1024,
2308 .cpu_port = B53_CPU_PORT,
2309 .vta_regs = B53_VTA_REGS,
2310 .duplex_reg = B53_DUPLEX_STAT_GE,
2311 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2312 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2313 },
2314 {
2315 .chip_id = BCM63XX_DEVICE_ID,
2316 .dev_name = "BCM63xx",
2317 .vlans = 4096,
2318 .enabled_ports = 0, /* pdata must provide them */
2319 .arl_bins = 4,
2320 .arl_buckets = 1024,
2321 .cpu_port = B53_CPU_PORT,
2322 .vta_regs = B53_VTA_REGS_63XX,
2323 .duplex_reg = B53_DUPLEX_STAT_63XX,
2324 .jumbo_pm_reg = B53_JUMBO_PORT_MASK_63XX,
2325 .jumbo_size_reg = B53_JUMBO_MAX_SIZE_63XX,
2326 },
2327 {
2328 .chip_id = BCM53010_DEVICE_ID,
2329 .dev_name = "BCM53010",
2330 .vlans = 4096,
2331 .enabled_ports = 0x1f,
2332 .arl_bins = 4,
2333 .arl_buckets = 1024,
2334 .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */
2335 .vta_regs = B53_VTA_REGS,
2336 .duplex_reg = B53_DUPLEX_STAT_GE,
2337 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2338 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2339 },
2340 {
2341 .chip_id = BCM53011_DEVICE_ID,
2342 .dev_name = "BCM53011",
2343 .vlans = 4096,
2344 .enabled_ports = 0x1bf,
2345 .arl_bins = 4,
2346 .arl_buckets = 1024,
2347 .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */
2348 .vta_regs = B53_VTA_REGS,
2349 .duplex_reg = B53_DUPLEX_STAT_GE,
2350 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2351 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2352 },
2353 {
2354 .chip_id = BCM53012_DEVICE_ID,
2355 .dev_name = "BCM53012",
2356 .vlans = 4096,
2357 .enabled_ports = 0x1bf,
2358 .arl_bins = 4,
2359 .arl_buckets = 1024,
2360 .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */
2361 .vta_regs = B53_VTA_REGS,
2362 .duplex_reg = B53_DUPLEX_STAT_GE,
2363 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2364 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2365 },
2366 {
2367 .chip_id = BCM53018_DEVICE_ID,
2368 .dev_name = "BCM53018",
2369 .vlans = 4096,
2370 .enabled_ports = 0x1f,
2371 .arl_bins = 4,
2372 .arl_buckets = 1024,
2373 .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */
2374 .vta_regs = B53_VTA_REGS,
2375 .duplex_reg = B53_DUPLEX_STAT_GE,
2376 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2377 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2378 },
2379 {
2380 .chip_id = BCM53019_DEVICE_ID,
2381 .dev_name = "BCM53019",
2382 .vlans = 4096,
2383 .enabled_ports = 0x1f,
2384 .arl_bins = 4,
2385 .arl_buckets = 1024,
2386 .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */
2387 .vta_regs = B53_VTA_REGS,
2388 .duplex_reg = B53_DUPLEX_STAT_GE,
2389 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2390 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2391 },
2392 {
2393 .chip_id = BCM58XX_DEVICE_ID,
2394 .dev_name = "BCM585xx/586xx/88312",
2395 .vlans = 4096,
2396 .enabled_ports = 0x1ff,
2397 .arl_bins = 4,
2398 .arl_buckets = 1024,
2399 .cpu_port = B53_CPU_PORT,
2400 .vta_regs = B53_VTA_REGS,
2401 .duplex_reg = B53_DUPLEX_STAT_GE,
2402 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2403 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2404 },
2405 {
2406 .chip_id = BCM583XX_DEVICE_ID,
2407 .dev_name = "BCM583xx/11360",
2408 .vlans = 4096,
2409 .enabled_ports = 0x103,
2410 .arl_bins = 4,
2411 .arl_buckets = 1024,
2412 .cpu_port = B53_CPU_PORT,
2413 .vta_regs = B53_VTA_REGS,
2414 .duplex_reg = B53_DUPLEX_STAT_GE,
2415 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2416 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2417 },
2418 {
2419 .chip_id = BCM7445_DEVICE_ID,
2420 .dev_name = "BCM7445",
2421 .vlans = 4096,
2422 .enabled_ports = 0x1ff,
2423 .arl_bins = 4,
2424 .arl_buckets = 1024,
2425 .cpu_port = B53_CPU_PORT,
2426 .vta_regs = B53_VTA_REGS,
2427 .duplex_reg = B53_DUPLEX_STAT_GE,
2428 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2429 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2430 },
2431 {
2432 .chip_id = BCM7278_DEVICE_ID,
2433 .dev_name = "BCM7278",
2434 .vlans = 4096,
2435 .enabled_ports = 0x1ff,
2436 .arl_bins = 4,
2437 .arl_buckets = 256,
2438 .cpu_port = B53_CPU_PORT,
2439 .vta_regs = B53_VTA_REGS,
2440 .duplex_reg = B53_DUPLEX_STAT_GE,
2441 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2442 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2443 },
2444};
2445
2446static int b53_switch_init(struct b53_device *dev)
2447{
2448 unsigned int i;
2449 int ret;
2450
2451 for (i = 0; i < ARRAY_SIZE(b53_switch_chips); i++) {
2452 const struct b53_chip_data *chip = &b53_switch_chips[i];
2453
2454 if (chip->chip_id == dev->chip_id) {
2455 if (!dev->enabled_ports)
2456 dev->enabled_ports = chip->enabled_ports;
2457 dev->name = chip->dev_name;
2458 dev->duplex_reg = chip->duplex_reg;
2459 dev->vta_regs[0] = chip->vta_regs[0];
2460 dev->vta_regs[1] = chip->vta_regs[1];
2461 dev->vta_regs[2] = chip->vta_regs[2];
2462 dev->jumbo_pm_reg = chip->jumbo_pm_reg;
2463 dev->cpu_port = chip->cpu_port;
2464 dev->num_vlans = chip->vlans;
2465 dev->num_arl_bins = chip->arl_bins;
2466 dev->num_arl_buckets = chip->arl_buckets;
2467 break;
2468 }
2469 }
2470
2471 /* check which BCM5325x version we have */
2472 if (is5325(dev)) {
2473 u8 vc4;
2474
2475 b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_25, &vc4);
2476
2477 /* check reserved bits */
2478 switch (vc4 & 3) {
2479 case 1:
2480 /* BCM5325E */
2481 break;
2482 case 3:
2483 /* BCM5325F - do not use port 4 */
2484 dev->enabled_ports &= ~BIT(4);
2485 break;
2486 default:
2487/* On the BCM47XX SoCs this is the supported internal switch.*/
2488#ifndef CONFIG_BCM47XX
2489 /* BCM5325M */
2490 return -EINVAL;
2491#else
2492 break;
2493#endif
2494 }
2495 } else if (dev->chip_id == BCM53115_DEVICE_ID) {
2496 u64 strap_value;
2497
2498 b53_read48(dev, B53_STAT_PAGE, B53_STRAP_VALUE, &strap_value);
2499 /* use second IMP port if GMII is enabled */
2500 if (strap_value & SV_GMII_CTRL_115)
2501 dev->cpu_port = 5;
2502 }
2503
2504 /* cpu port is always last */
2505 dev->num_ports = dev->cpu_port + 1;
2506 dev->enabled_ports |= BIT(dev->cpu_port);
2507
2508 /* Include non standard CPU port built-in PHYs to be probed */
2509 if (is539x(dev) || is531x5(dev)) {
2510 for (i = 0; i < dev->num_ports; i++) {
2511 if (!(dev->ds->phys_mii_mask & BIT(i)) &&
2512 !b53_possible_cpu_port(dev->ds, i))
2513 dev->ds->phys_mii_mask |= BIT(i);
2514 }
2515 }
2516
2517 dev->ports = devm_kcalloc(dev->dev,
2518 dev->num_ports, sizeof(struct b53_port),
2519 GFP_KERNEL);
2520 if (!dev->ports)
2521 return -ENOMEM;
2522
2523 dev->vlans = devm_kcalloc(dev->dev,
2524 dev->num_vlans, sizeof(struct b53_vlan),
2525 GFP_KERNEL);
2526 if (!dev->vlans)
2527 return -ENOMEM;
2528
2529 dev->reset_gpio = b53_switch_get_reset_gpio(dev);
2530 if (dev->reset_gpio >= 0) {
2531 ret = devm_gpio_request_one(dev->dev, dev->reset_gpio,
2532 GPIOF_OUT_INIT_HIGH, "robo_reset");
2533 if (ret)
2534 return ret;
2535 }
2536
2537 return 0;
2538}
2539
2540struct b53_device *b53_switch_alloc(struct device *base,
2541 const struct b53_io_ops *ops,
2542 void *priv)
2543{
2544 struct dsa_switch *ds;
2545 struct b53_device *dev;
2546
2547 ds = devm_kzalloc(base, sizeof(*ds), GFP_KERNEL);
2548 if (!ds)
2549 return NULL;
2550
2551 ds->dev = base;
2552 ds->num_ports = DSA_MAX_PORTS;
2553
2554 dev = devm_kzalloc(base, sizeof(*dev), GFP_KERNEL);
2555 if (!dev)
2556 return NULL;
2557
2558 ds->priv = dev;
2559 dev->dev = base;
2560
2561 dev->ds = ds;
2562 dev->priv = priv;
2563 dev->ops = ops;
2564 ds->ops = &b53_switch_ops;
2565 mutex_init(&dev->reg_mutex);
2566 mutex_init(&dev->stats_mutex);
2567
2568 return dev;
2569}
2570EXPORT_SYMBOL(b53_switch_alloc);
2571
2572int b53_switch_detect(struct b53_device *dev)
2573{
2574 u32 id32;
2575 u16 tmp;
2576 u8 id8;
2577 int ret;
2578
2579 ret = b53_read8(dev, B53_MGMT_PAGE, B53_DEVICE_ID, &id8);
2580 if (ret)
2581 return ret;
2582
2583 switch (id8) {
2584 case 0:
2585 /* BCM5325 and BCM5365 do not have this register so reads
2586 * return 0. But the read operation did succeed, so assume this
2587 * is one of them.
2588 *
2589 * Next check if we can write to the 5325's VTA register; for
2590 * 5365 it is read only.
2591 */
2592 b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_25, 0xf);
2593 b53_read16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_25, &tmp);
2594
2595 if (tmp == 0xf)
2596 dev->chip_id = BCM5325_DEVICE_ID;
2597 else
2598 dev->chip_id = BCM5365_DEVICE_ID;
2599 break;
2600 case BCM5389_DEVICE_ID:
2601 case BCM5395_DEVICE_ID:
2602 case BCM5397_DEVICE_ID:
2603 case BCM5398_DEVICE_ID:
2604 dev->chip_id = id8;
2605 break;
2606 default:
2607 ret = b53_read32(dev, B53_MGMT_PAGE, B53_DEVICE_ID, &id32);
2608 if (ret)
2609 return ret;
2610
2611 switch (id32) {
2612 case BCM53115_DEVICE_ID:
2613 case BCM53125_DEVICE_ID:
2614 case BCM53128_DEVICE_ID:
2615 case BCM53010_DEVICE_ID:
2616 case BCM53011_DEVICE_ID:
2617 case BCM53012_DEVICE_ID:
2618 case BCM53018_DEVICE_ID:
2619 case BCM53019_DEVICE_ID:
2620 dev->chip_id = id32;
2621 break;
2622 default:
2623 pr_err("unsupported switch detected (BCM53%02x/BCM%x)\n",
2624 id8, id32);
2625 return -ENODEV;
2626 }
2627 }
2628
2629 if (dev->chip_id == BCM5325_DEVICE_ID)
2630 return b53_read8(dev, B53_STAT_PAGE, B53_REV_ID_25,
2631 &dev->core_rev);
2632 else
2633 return b53_read8(dev, B53_MGMT_PAGE, B53_REV_ID,
2634 &dev->core_rev);
2635}
2636EXPORT_SYMBOL(b53_switch_detect);
2637
2638int b53_switch_register(struct b53_device *dev)
2639{
2640 int ret;
2641
2642 if (dev->pdata) {
2643 dev->chip_id = dev->pdata->chip_id;
2644 dev->enabled_ports = dev->pdata->enabled_ports;
2645 }
2646
2647 if (!dev->chip_id && b53_switch_detect(dev))
2648 return -EINVAL;
2649
2650 ret = b53_switch_init(dev);
2651 if (ret)
2652 return ret;
2653
2654 pr_info("found switch: %s, rev %i\n", dev->name, dev->core_rev);
2655
2656 return dsa_register_switch(dev->ds);
2657}
2658EXPORT_SYMBOL(b53_switch_register);
2659
2660MODULE_AUTHOR("Jonas Gorski <jogo@openwrt.org>");
2661MODULE_DESCRIPTION("B53 switch library");
2662MODULE_LICENSE("Dual BSD/GPL");