2 * B53 switch driver main logic
4 * Copyright (C) 2011-2013 Jonas Gorski <jogo@openwrt.org>
5 * Copyright (C) 2016 Florian Fainelli <f.fainelli@gmail.com>
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.
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.
20 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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>
43 /* BCM5365 MIB counters */
44 static 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" },
79 #define B53_MIBS_65_SIZE ARRAY_SIZE(b53_mibs_65)
81 /* BCM63xx MIB counters */
82 static 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" },
127 #define B53_MIBS_63XX_SIZE ARRAY_SIZE(b53_mibs_63xx)
130 static 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" },
168 #define B53_MIBS_SIZE ARRAY_SIZE(b53_mibs)
170 static 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" },
227 #define B53_MIBS_58XX_SIZE ARRAY_SIZE(b53_mibs_58xx)
229 static int b53_do_vlan_op(struct b53_device *dev, u8 op)
233 b53_write8(dev, B53_ARLIO_PAGE, dev->vta_regs[0], VTA_START_CMD | op);
235 for (i = 0; i < 10; i++) {
238 b53_read8(dev, B53_ARLIO_PAGE, dev->vta_regs[0], &vta);
239 if (!(vta & VTA_START_CMD))
242 usleep_range(100, 200);
248 static void b53_set_vlan_entry(struct b53_device *dev, u16 vid,
249 struct b53_vlan *vlan)
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;
260 entry |= VA_VALID_25;
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)) {
270 entry = ((vlan->untag & VA_UNTAG_MASK_65) <<
271 VA_UNTAG_S_65) | vlan->members | VA_VALID_65;
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);
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);
281 b53_do_vlan_op(dev, VTA_CMD_WRITE);
284 dev_dbg(dev->ds->dev, "VID: %d, members: 0x%04x, untag: 0x%04x\n",
285 vid, vlan->members, vlan->untag);
288 static void b53_get_vlan_entry(struct b53_device *dev, u16 vid,
289 struct b53_vlan *vlan)
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);
298 if (dev->core_rev >= 3)
299 vlan->valid = !!(entry & VA_VALID_25_R4);
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;
305 } else if (is5365(dev)) {
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);
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;
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;
327 static void b53_set_forwarding(struct b53_device *dev, int enable)
331 b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt);
334 mgmt |= SM_SW_FWD_EN;
336 mgmt &= ~SM_SW_FWD_EN;
338 b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, mgmt);
340 /* Include IMP port in dumb forwarding mode
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);
346 /* Look at B53_UC_FWD_EN and B53_MC_FWD_EN to decide whether
347 * frames should be flooded or not.
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);
354 static void b53_enable_vlan(struct b53_device *dev, bool enable,
355 bool enable_filtering)
357 u8 mgmt, vc0, vc1, vc4 = 0, vc5;
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);
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);
370 b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4, &vc4);
371 b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5, &vc5);
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;
382 vc4 |= VC4_ING_VID_VIO_FWD << VC4_ING_VID_CHECK_S;
383 vc5 &= ~VC5_DROP_VTABLE_MISS;
387 vc0 &= ~VC0_RESERVED_1;
389 if (is5325(dev) || is5365(dev))
390 vc1 |= VC1_RX_MCST_TAG_EN;
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;
398 if (is5325(dev) || is5365(dev))
399 vc4 |= VC4_ING_VID_VIO_FWD << VC4_ING_VID_CHECK_S;
401 vc4 |= VC4_ING_VID_VIO_TO_IMP << VC4_ING_VID_CHECK_S;
403 if (is5325(dev) || is5365(dev))
404 vc1 &= ~VC1_RX_MCST_TAG_EN;
407 if (!is5325(dev) && !is5365(dev))
408 vc5 &= ~VC5_VID_FFF_EN;
410 b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL0, vc0);
411 b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL1, vc1);
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,
419 b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL3, 0);
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);
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);
433 b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, mgmt);
435 dev->vlan_enabled = enable;
438 static int b53_set_jumbo(struct b53_device *dev, bool enable, bool allow_10_100)
441 u16 max_size = JMS_MIN_SIZE;
443 if (is5325(dev) || is5365(dev))
447 port_mask = dev->enabled_ports;
448 max_size = JMS_MAX_SIZE;
450 port_mask |= JPM_10_100_JUMBO_EN;
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);
457 static int b53_flush_arl(struct b53_device *dev, u8 mask)
461 b53_write8(dev, B53_CTRL_PAGE, B53_FAST_AGE_CTRL,
462 FAST_AGE_DONE | FAST_AGE_DYNAMIC | mask);
464 for (i = 0; i < 10; i++) {
467 b53_read8(dev, B53_CTRL_PAGE, B53_FAST_AGE_CTRL,
470 if (!(fast_age_ctrl & FAST_AGE_DONE))
478 /* Only age dynamic entries (default behavior) */
479 b53_write8(dev, B53_CTRL_PAGE, B53_FAST_AGE_CTRL, FAST_AGE_DYNAMIC);
483 static int b53_fast_age_port(struct b53_device *dev, int port)
485 b53_write8(dev, B53_CTRL_PAGE, B53_FAST_AGE_PORT_CTRL, port);
487 return b53_flush_arl(dev, FAST_AGE_PORT);
490 static int b53_fast_age_vlan(struct b53_device *dev, u16 vid)
492 b53_write16(dev, B53_CTRL_PAGE, B53_FAST_AGE_VID_CTRL, vid);
494 return b53_flush_arl(dev, FAST_AGE_VLAN);
497 void b53_imp_vlan_setup(struct dsa_switch *ds, int cpu_port)
499 struct b53_device *dev = ds->priv;
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
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);
513 EXPORT_SYMBOL(b53_imp_vlan_setup);
515 int b53_enable_port(struct dsa_switch *ds, int port, struct phy_device *phy)
517 struct b53_device *dev = ds->priv;
518 unsigned int cpu_port;
522 if (!dsa_is_user_port(ds, port))
525 cpu_port = dsa_to_port(ds, port)->cpu_dp->index;
527 b53_br_egress_floods(ds, port, true, true);
529 if (dev->ops->irq_enable)
530 ret = dev->ops->irq_enable(dev, port);
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);
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.
541 b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), &pvlan);
544 pvlan |= dev->ports[port].vlan_ctl_mask;
545 b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), pvlan);
547 b53_imp_vlan_setup(ds, cpu_port);
549 /* If EEE was enabled, restore it */
550 if (dev->ports[port].eee.eee_enabled)
551 b53_eee_enable_set(ds, port, true);
555 EXPORT_SYMBOL(b53_enable_port);
557 void b53_disable_port(struct dsa_switch *ds, int port)
559 struct b53_device *dev = ds->priv;
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);
567 if (dev->ops->irq_disable)
568 dev->ops->irq_disable(dev, port);
570 EXPORT_SYMBOL(b53_disable_port);
572 void b53_brcm_hdr_setup(struct dsa_switch *ds, int port)
574 struct b53_device *dev = ds->priv;
575 bool tag_en = !(dev->tag_protocol == DSA_TAG_PROTO_NONE);
579 /* Resolve which bit controls the Broadcom tag */
582 val = BRCM_HDR_P8_EN;
585 val = BRCM_HDR_P7_EN;
588 val = BRCM_HDR_P5_EN;
595 /* Enable management mode if tagging is requested */
596 b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &hdr_ctl);
598 hdr_ctl |= SM_SW_FWD_MODE;
600 hdr_ctl &= ~SM_SW_FWD_MODE;
601 b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, hdr_ctl);
603 /* Configure the appropriate IMP port */
604 b53_read8(dev, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, &hdr_ctl);
606 hdr_ctl |= GC_FRM_MGMT_PORT_MII;
608 hdr_ctl |= GC_FRM_MGMT_PORT_M;
609 b53_write8(dev, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, hdr_ctl);
611 /* Enable Broadcom tags for IMP port */
612 b53_read8(dev, B53_MGMT_PAGE, B53_BRCM_HDR, &hdr_ctl);
617 b53_write8(dev, B53_MGMT_PAGE, B53_BRCM_HDR, hdr_ctl);
619 /* Registers below are only accessible on newer devices */
623 /* Enable reception Broadcom tag for CPU TX (switch RX) to
624 * allow us to tag outgoing frames
626 b53_read16(dev, B53_MGMT_PAGE, B53_BRCM_HDR_RX_DIS, ®);
631 b53_write16(dev, B53_MGMT_PAGE, B53_BRCM_HDR_RX_DIS, reg);
633 /* Enable transmission of Broadcom tags from the switch (CPU RX) to
634 * allow delivering frames to the per-port net_devices
636 b53_read16(dev, B53_MGMT_PAGE, B53_BRCM_HDR_TX_DIS, ®);
641 b53_write16(dev, B53_MGMT_PAGE, B53_BRCM_HDR_TX_DIS, reg);
643 EXPORT_SYMBOL(b53_brcm_hdr_setup);
645 static void b53_enable_cpu_port(struct b53_device *dev, int port)
649 /* BCM5325 CPU port is at 8 */
650 if ((is5325(dev) || is5365(dev)) && port == B53_CPU_PORT_25)
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);
658 b53_brcm_hdr_setup(dev->ds, port);
660 b53_br_egress_floods(dev->ds, port, true, true);
663 static void b53_enable_mib(struct b53_device *dev)
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);
672 static u16 b53_default_pvid(struct b53_device *dev)
674 if (is5325(dev) || is5365(dev))
680 int b53_configure_vlan(struct dsa_switch *ds)
682 struct b53_device *dev = ds->priv;
683 struct b53_vlan vl = { 0 };
688 def_vid = b53_default_pvid(dev);
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);
695 b53_do_vlan_op(dev, VTA_CMD_CLEAR);
698 b53_enable_vlan(dev, dev->vlan_enabled, ds->vlan_filtering);
700 b53_for_each_port(dev, i)
701 b53_write16(dev, B53_VLAN_PAGE,
702 B53_VLAN_PORT_DEF_TAG(i), def_vid);
704 /* Upon initial call we have not set-up any VLANs, but upon
705 * system resume, we need to restore all VLAN entries.
707 for (vid = def_vid; vid < dev->num_vlans; vid++) {
708 v = &dev->vlans[vid];
713 b53_set_vlan_entry(dev, vid, v);
714 b53_fast_age_vlan(dev, vid);
719 EXPORT_SYMBOL(b53_configure_vlan);
721 static void b53_switch_reset_gpio(struct b53_device *dev)
723 int gpio = dev->reset_gpio;
728 /* Reset sequence: RESET low(50ms)->high(20ms)
730 gpio_set_value(gpio, 0);
733 gpio_set_value(gpio, 1);
736 dev->current_page = 0xff;
739 static int b53_switch_reset(struct b53_device *dev)
741 unsigned int timeout = 1000;
744 b53_switch_reset_gpio(dev);
747 b53_write8(dev, B53_CTRL_PAGE, B53_SOFTRESET, 0x83);
748 b53_write8(dev, B53_CTRL_PAGE, B53_SOFTRESET, 0x00);
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
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);
763 b53_read8(dev, B53_CTRL_PAGE, B53_SOFTRESET, ®);
767 usleep_range(1000, 2000);
768 } while (timeout-- > 0);
774 b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt);
776 if (!(mgmt & SM_SW_FWD_EN)) {
777 mgmt &= ~SM_SW_FWD_MODE;
778 mgmt |= SM_SW_FWD_EN;
780 b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, mgmt);
781 b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt);
783 if (!(mgmt & SM_SW_FWD_EN)) {
784 dev_err(dev->dev, "Failed to enable switch!\n");
791 return b53_flush_arl(dev, FAST_AGE_STATIC);
794 static int b53_phy_read16(struct dsa_switch *ds, int addr, int reg)
796 struct b53_device *priv = ds->priv;
800 if (priv->ops->phy_read16)
801 ret = priv->ops->phy_read16(priv, addr, reg, &value);
803 ret = b53_read16(priv, B53_PORT_MII_PAGE(addr),
806 return ret ? ret : value;
809 static int b53_phy_write16(struct dsa_switch *ds, int addr, int reg, u16 val)
811 struct b53_device *priv = ds->priv;
813 if (priv->ops->phy_write16)
814 return priv->ops->phy_write16(priv, addr, reg, val);
816 return b53_write16(priv, B53_PORT_MII_PAGE(addr), reg * 2, val);
819 static int b53_reset_switch(struct b53_device *priv)
822 memset(priv->vlans, 0, sizeof(*priv->vlans) * priv->num_vlans);
823 memset(priv->ports, 0, sizeof(*priv->ports) * priv->num_ports);
825 priv->serdes_lane = B53_INVALID_LANE;
827 return b53_switch_reset(priv);
830 static int b53_apply_config(struct b53_device *priv)
832 /* disable switching */
833 b53_set_forwarding(priv, 0);
835 b53_configure_vlan(priv->ds);
837 /* enable switching */
838 b53_set_forwarding(priv, 1);
843 static void b53_reset_mib(struct b53_device *priv)
847 b53_read8(priv, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, &gc);
849 b53_write8(priv, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, gc | GC_RESET_MIB);
851 b53_write8(priv, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, gc & ~GC_RESET_MIB);
855 static const struct b53_mib_desc *b53_get_mib(struct b53_device *dev)
859 else if (is63xx(dev))
860 return b53_mibs_63xx;
861 else if (is58xx(dev))
862 return b53_mibs_58xx;
867 static unsigned int b53_get_mib_size(struct b53_device *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;
876 return B53_MIBS_SIZE;
879 static struct phy_device *b53_get_phy_device(struct dsa_switch *ds, int port)
881 /* These ports typically do not have built-in PHYs */
883 case B53_CPU_PORT_25:
889 return mdiobus_get_phy(ds->slave_mii_bus, port);
892 void b53_get_strings(struct dsa_switch *ds, int port, u32 stringset,
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;
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);
910 phy_ethtool_get_strings(phydev, data);
913 EXPORT_SYMBOL(b53_get_strings);
915 void b53_get_ethtool_stats(struct dsa_switch *ds, int port, uint64_t *data)
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;
924 if (is5365(dev) && port == 5)
927 mutex_lock(&dev->stats_mutex);
929 for (i = 0; i < mib_size; i++) {
933 b53_read64(dev, B53_MIB_PAGE(port), s->offset, &val);
937 b53_read32(dev, B53_MIB_PAGE(port), s->offset,
944 mutex_unlock(&dev->stats_mutex);
946 EXPORT_SYMBOL(b53_get_ethtool_stats);
948 void b53_get_ethtool_phy_stats(struct dsa_switch *ds, int port, uint64_t *data)
950 struct phy_device *phydev;
952 phydev = b53_get_phy_device(ds, port);
956 phy_ethtool_get_stats(phydev, NULL, data);
958 EXPORT_SYMBOL(b53_get_ethtool_phy_stats);
960 int b53_get_sset_count(struct dsa_switch *ds, int port, int sset)
962 struct b53_device *dev = ds->priv;
963 struct phy_device *phydev;
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);
972 return phy_ethtool_get_sset_count(phydev);
977 EXPORT_SYMBOL(b53_get_sset_count);
979 static int b53_setup(struct dsa_switch *ds)
981 struct b53_device *dev = ds->priv;
985 ret = b53_reset_switch(dev);
987 dev_err(ds->dev, "failed to reset switch\n");
993 ret = b53_apply_config(dev);
995 dev_err(ds->dev, "failed to apply configuration\n");
997 /* Configure IMP/CPU port, disable all other ports. Enabled
998 * ports will be configured with .port_enable
1000 for (port = 0; port < dev->num_ports; port++) {
1001 if (dsa_is_cpu_port(ds, port))
1002 b53_enable_cpu_port(dev, port);
1004 b53_disable_port(ds, port);
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)
1012 ds->vlan_filtering_is_global = true;
1017 static void b53_force_link(struct b53_device *dev, int port, int link)
1021 /* Override the port settings */
1022 if (port == dev->cpu_port) {
1023 off = B53_PORT_OVERRIDE_CTRL;
1024 val = PORT_OVERRIDE_EN;
1026 off = B53_GMII_PORT_OVERRIDE_CTRL(port);
1030 b53_read8(dev, B53_CTRL_PAGE, off, ®);
1033 reg |= PORT_OVERRIDE_LINK;
1035 reg &= ~PORT_OVERRIDE_LINK;
1036 b53_write8(dev, B53_CTRL_PAGE, off, reg);
1039 static void b53_force_port_config(struct b53_device *dev, int port,
1040 int speed, int duplex,
1041 bool tx_pause, bool rx_pause)
1045 /* Override the port settings */
1046 if (port == dev->cpu_port) {
1047 off = B53_PORT_OVERRIDE_CTRL;
1048 val = PORT_OVERRIDE_EN;
1050 off = B53_GMII_PORT_OVERRIDE_CTRL(port);
1054 b53_read8(dev, B53_CTRL_PAGE, off, ®);
1056 if (duplex == DUPLEX_FULL)
1057 reg |= PORT_OVERRIDE_FULL_DUPLEX;
1059 reg &= ~PORT_OVERRIDE_FULL_DUPLEX;
1063 reg |= PORT_OVERRIDE_SPEED_2000M;
1066 reg |= PORT_OVERRIDE_SPEED_1000M;
1069 reg |= PORT_OVERRIDE_SPEED_100M;
1072 reg |= PORT_OVERRIDE_SPEED_10M;
1075 dev_err(dev->dev, "unknown speed: %d\n", speed);
1080 reg |= PORT_OVERRIDE_RX_FLOW;
1082 reg |= PORT_OVERRIDE_TX_FLOW;
1084 b53_write8(dev, B53_CTRL_PAGE, off, reg);
1087 static void b53_adjust_link(struct dsa_switch *ds, int port,
1088 struct phy_device *phydev)
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;
1096 if (!phy_is_pseudo_fixed_link(phydev))
1099 /* Enable flow control on BCM5301x's CPU port */
1100 if (is5301x(dev) && port == dev->cpu_port)
1101 tx_pause = rx_pause = true;
1103 if (phydev->pause) {
1104 if (phydev->asym_pause)
1109 b53_force_port_config(dev, port, phydev->speed, phydev->duplex,
1110 tx_pause, rx_pause);
1111 b53_force_link(dev, port, phydev->link);
1113 if (is531x5(dev) && phy_interface_is_rgmii(phydev)) {
1115 off = B53_RGMII_CTRL_IMP;
1117 off = B53_RGMII_CTRL_P(port);
1119 /* Configure the port RGMII clock delay by DLL disabled and
1120 * tx_clk aligned timing (restoring to reset defaults)
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);
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.
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
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
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);
1147 dev_info(ds->dev, "Configured port %d for %s\n", port,
1148 phy_modes(phydev->interface));
1151 /* configure MII port if necessary */
1153 b53_read8(dev, B53_CTRL_PAGE, B53_PORT_OVERRIDE_CTRL,
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,
1163 if (!(reg & PORT_OVERRIDE_RV_MII_25)) {
1165 "Failed to enable reverse MII mode\n");
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);
1177 /* Re-negotiate EEE if it was enabled already */
1178 p->eee_enabled = b53_eee_init(ds, port, phydev);
1181 void b53_port_event(struct dsa_switch *ds, int port)
1183 struct b53_device *dev = ds->priv;
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);
1191 EXPORT_SYMBOL(b53_port_event);
1193 void b53_phylink_validate(struct dsa_switch *ds, int port,
1194 unsigned long *supported,
1195 struct phylink_link_state *state)
1197 struct b53_device *dev = ds->priv;
1198 __ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = { 0, };
1200 if (dev->ops->serdes_phylink_validate)
1201 dev->ops->serdes_phylink_validate(dev, port, mask, state);
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);
1209 /* With the exclusion of 5325/5365, MII, Reverse MII and 802.3z, we
1210 * support Gigabit, including Half duplex.
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);
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);
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);
1232 phylink_helper_basex_speed(state);
1234 EXPORT_SYMBOL(b53_phylink_validate);
1236 int b53_phylink_mac_link_state(struct dsa_switch *ds, int port,
1237 struct phylink_link_state *state)
1239 struct b53_device *dev = ds->priv;
1240 int ret = -EOPNOTSUPP;
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);
1249 EXPORT_SYMBOL(b53_phylink_mac_link_state);
1251 void b53_phylink_mac_config(struct dsa_switch *ds, int port,
1253 const struct phylink_link_state *state)
1255 struct b53_device *dev = ds->priv;
1257 if (mode == MLO_AN_PHY || mode == MLO_AN_FIXED)
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);
1265 EXPORT_SYMBOL(b53_phylink_mac_config);
1267 void b53_phylink_mac_an_restart(struct dsa_switch *ds, int port)
1269 struct b53_device *dev = ds->priv;
1271 if (dev->ops->serdes_an_restart)
1272 dev->ops->serdes_an_restart(dev, port);
1274 EXPORT_SYMBOL(b53_phylink_mac_an_restart);
1276 void b53_phylink_mac_link_down(struct dsa_switch *ds, int port,
1278 phy_interface_t interface)
1280 struct b53_device *dev = ds->priv;
1282 if (mode == MLO_AN_PHY)
1285 if (mode == MLO_AN_FIXED) {
1286 b53_force_link(dev, port, false);
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);
1294 EXPORT_SYMBOL(b53_phylink_mac_link_down);
1296 void b53_phylink_mac_link_up(struct dsa_switch *ds, int port,
1298 phy_interface_t interface,
1299 struct phy_device *phydev,
1300 int speed, int duplex,
1301 bool tx_pause, bool rx_pause)
1303 struct b53_device *dev = ds->priv;
1305 if (mode == MLO_AN_PHY)
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);
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);
1319 EXPORT_SYMBOL(b53_phylink_mac_link_up);
1321 int b53_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering)
1323 struct b53_device *dev = ds->priv;
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
1331 dev->ports[port].pvid = pvid;
1332 new_pvid = b53_default_pvid(dev);
1334 /* Filtering is currently disabled, restore the previous PVID */
1335 new_pvid = dev->ports[port].pvid;
1338 if (pvid != new_pvid)
1339 b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_PORT_DEF_TAG(port),
1342 b53_enable_vlan(dev, dev->vlan_enabled, vlan_filtering);
1346 EXPORT_SYMBOL(b53_vlan_filtering);
1348 int b53_vlan_prepare(struct dsa_switch *ds, int port,
1349 const struct switchdev_obj_port_vlan *vlan)
1351 struct b53_device *dev = ds->priv;
1353 if ((is5325(dev) || is5365(dev)) && vlan->vid_begin == 0)
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.
1360 if (dev->chip_id == BCM7278_DEVICE_ID && port == 7 &&
1361 !(vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED))
1364 if (vlan->vid_end > dev->num_vlans)
1367 b53_enable_vlan(dev, true, ds->vlan_filtering);
1371 EXPORT_SYMBOL(b53_vlan_prepare);
1373 void b53_vlan_add(struct dsa_switch *ds, int port,
1374 const struct switchdev_obj_port_vlan *vlan)
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;
1382 for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) {
1383 vl = &dev->vlans[vid];
1385 b53_get_vlan_entry(dev, vid, vl);
1387 if (vid == 0 && vid == b53_default_pvid(dev))
1390 vl->members |= BIT(port);
1391 if (untagged && !dsa_is_cpu_port(ds, port))
1392 vl->untag |= BIT(port);
1394 vl->untag &= ~BIT(port);
1396 b53_set_vlan_entry(dev, vid, vl);
1397 b53_fast_age_vlan(dev, vid);
1400 if (pvid && !dsa_is_cpu_port(ds, port)) {
1401 b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_PORT_DEF_TAG(port),
1403 b53_fast_age_vlan(dev, vid);
1406 EXPORT_SYMBOL(b53_vlan_add);
1408 int b53_vlan_del(struct dsa_switch *ds, int port,
1409 const struct switchdev_obj_port_vlan *vlan)
1411 struct b53_device *dev = ds->priv;
1412 bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
1413 struct b53_vlan *vl;
1417 b53_read16(dev, B53_VLAN_PAGE, B53_VLAN_PORT_DEF_TAG(port), &pvid);
1419 for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) {
1420 vl = &dev->vlans[vid];
1422 b53_get_vlan_entry(dev, vid, vl);
1424 vl->members &= ~BIT(port);
1427 pvid = b53_default_pvid(dev);
1429 if (untagged && !dsa_is_cpu_port(ds, port))
1430 vl->untag &= ~(BIT(port));
1432 b53_set_vlan_entry(dev, vid, vl);
1433 b53_fast_age_vlan(dev, vid);
1436 b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_PORT_DEF_TAG(port), pvid);
1437 b53_fast_age_vlan(dev, pvid);
1441 EXPORT_SYMBOL(b53_vlan_del);
1443 /* Address Resolution Logic routines */
1444 static int b53_arl_op_wait(struct b53_device *dev)
1446 unsigned int timeout = 10;
1450 b53_read8(dev, B53_ARLIO_PAGE, B53_ARLTBL_RW_CTRL, ®);
1451 if (!(reg & ARLTBL_START_DONE))
1454 usleep_range(1000, 2000);
1455 } while (timeout--);
1457 dev_warn(dev->dev, "timeout waiting for ARL to finish: 0x%02x\n", reg);
1462 static int b53_arl_rw_op(struct b53_device *dev, unsigned int op)
1469 b53_read8(dev, B53_ARLIO_PAGE, B53_ARLTBL_RW_CTRL, ®);
1470 reg |= ARLTBL_START_DONE;
1475 if (dev->vlan_enabled)
1476 reg &= ~ARLTBL_IVL_SVL_SELECT;
1478 reg |= ARLTBL_IVL_SVL_SELECT;
1479 b53_write8(dev, B53_ARLIO_PAGE, B53_ARLTBL_RW_CTRL, reg);
1481 return b53_arl_op_wait(dev);
1484 static int b53_arl_read(struct b53_device *dev, u64 mac,
1485 u16 vid, struct b53_arl_entry *ent, u8 *idx)
1487 DECLARE_BITMAP(free_bins, B53_ARLTBL_MAX_BIN_ENTRIES);
1491 ret = b53_arl_op_wait(dev);
1495 bitmap_zero(free_bins, dev->num_arl_bins);
1498 for (i = 0; i < dev->num_arl_bins; i++) {
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);
1508 if (!(fwd_entry & ARLTBL_VALID)) {
1509 set_bit(i, free_bins);
1512 if ((mac_vid & ARLTBL_MAC_MASK) != mac)
1514 if (dev->vlan_enabled &&
1515 ((mac_vid >> ARLTBL_VID_S) & ARLTBL_VID_MASK) != vid)
1521 if (bitmap_weight(free_bins, dev->num_arl_bins) == 0)
1524 *idx = find_first_bit(free_bins, dev->num_arl_bins);
1529 static int b53_arl_op(struct b53_device *dev, int op, int port,
1530 const unsigned char *addr, u16 vid, bool is_valid)
1532 struct b53_arl_entry ent;
1534 u64 mac, mac_vid = 0;
1538 /* Convert the array into a 64-bit MAC */
1539 mac = ether_addr_to_u64(addr);
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);
1545 /* Issue a read operation for this MAC */
1546 ret = b53_arl_rw_op(dev, 1);
1550 ret = b53_arl_read(dev, mac, vid, &ent, &idx);
1552 /* If this is a read, just finish now */
1558 dev_dbg(dev->dev, "{%pM,%.4d} no space left in ARL\n",
1560 return is_valid ? ret : 0;
1562 /* We could not find a matching MAC, so reset to a new entry */
1563 dev_dbg(dev->dev, "{%pM,%.4d} not found, using idx: %d\n",
1568 dev_dbg(dev->dev, "{%pM,%.4d} found, using idx: %d\n",
1573 /* For multicast address, the port is a bitmask and the validity
1574 * is determined by having at least one port being still active
1576 if (!is_multicast_ether_addr(addr)) {
1578 ent.is_valid = is_valid;
1581 ent.port |= BIT(port);
1583 ent.port &= ~BIT(port);
1585 ent.is_valid = !!(ent.port);
1589 ent.is_static = true;
1591 memcpy(ent.mac, addr, ETH_ALEN);
1592 b53_arl_from_entry(&mac_vid, &fwd_entry, &ent);
1594 b53_write64(dev, B53_ARLIO_PAGE,
1595 B53_ARLTBL_MAC_VID_ENTRY(idx), mac_vid);
1596 b53_write32(dev, B53_ARLIO_PAGE,
1597 B53_ARLTBL_DATA_ENTRY(idx), fwd_entry);
1599 return b53_arl_rw_op(dev, 0);
1602 int b53_fdb_add(struct dsa_switch *ds, int port,
1603 const unsigned char *addr, u16 vid)
1605 struct b53_device *priv = ds->priv;
1607 /* 5325 and 5365 require some more massaging, but could
1608 * be supported eventually
1610 if (is5325(priv) || is5365(priv))
1613 return b53_arl_op(priv, 0, port, addr, vid, true);
1615 EXPORT_SYMBOL(b53_fdb_add);
1617 int b53_fdb_del(struct dsa_switch *ds, int port,
1618 const unsigned char *addr, u16 vid)
1620 struct b53_device *priv = ds->priv;
1622 return b53_arl_op(priv, 0, port, addr, vid, false);
1624 EXPORT_SYMBOL(b53_fdb_del);
1626 static int b53_arl_search_wait(struct b53_device *dev)
1628 unsigned int timeout = 1000;
1632 b53_read8(dev, B53_ARLIO_PAGE, B53_ARL_SRCH_CTL, ®);
1633 if (!(reg & ARL_SRCH_STDN))
1636 if (reg & ARL_SRCH_VLID)
1639 usleep_range(1000, 2000);
1640 } while (timeout--);
1645 static void b53_arl_search_rd(struct b53_device *dev, u8 idx,
1646 struct b53_arl_entry *ent)
1651 b53_read64(dev, B53_ARLIO_PAGE,
1652 B53_ARL_SRCH_RSTL_MACVID(idx), &mac_vid);
1653 b53_read32(dev, B53_ARLIO_PAGE,
1654 B53_ARL_SRCH_RSTL(idx), &fwd_entry);
1655 b53_arl_to_entry(ent, mac_vid, fwd_entry);
1658 static int b53_fdb_copy(int port, const struct b53_arl_entry *ent,
1659 dsa_fdb_dump_cb_t *cb, void *data)
1664 if (port != ent->port)
1667 return cb(ent->mac, ent->vid, ent->is_static, data);
1670 int b53_fdb_dump(struct dsa_switch *ds, int port,
1671 dsa_fdb_dump_cb_t *cb, void *data)
1673 struct b53_device *priv = ds->priv;
1674 struct b53_arl_entry results[2];
1675 unsigned int count = 0;
1679 /* Start search operation */
1680 reg = ARL_SRCH_STDN;
1681 b53_write8(priv, B53_ARLIO_PAGE, B53_ARL_SRCH_CTL, reg);
1684 ret = b53_arl_search_wait(priv);
1688 b53_arl_search_rd(priv, 0, &results[0]);
1689 ret = b53_fdb_copy(port, &results[0], cb, data);
1693 if (priv->num_arl_bins > 2) {
1694 b53_arl_search_rd(priv, 1, &results[1]);
1695 ret = b53_fdb_copy(port, &results[1], cb, data);
1699 if (!results[0].is_valid && !results[1].is_valid)
1703 } while (count++ < b53_max_arl_entries(priv) / 2);
1707 EXPORT_SYMBOL(b53_fdb_dump);
1709 int b53_mdb_prepare(struct dsa_switch *ds, int port,
1710 const struct switchdev_obj_port_mdb *mdb)
1712 struct b53_device *priv = ds->priv;
1714 /* 5325 and 5365 require some more massaging, but could
1715 * be supported eventually
1717 if (is5325(priv) || is5365(priv))
1722 EXPORT_SYMBOL(b53_mdb_prepare);
1724 void b53_mdb_add(struct dsa_switch *ds, int port,
1725 const struct switchdev_obj_port_mdb *mdb)
1727 struct b53_device *priv = ds->priv;
1730 ret = b53_arl_op(priv, 0, port, mdb->addr, mdb->vid, true);
1732 dev_err(ds->dev, "failed to add MDB entry\n");
1734 EXPORT_SYMBOL(b53_mdb_add);
1736 int b53_mdb_del(struct dsa_switch *ds, int port,
1737 const struct switchdev_obj_port_mdb *mdb)
1739 struct b53_device *priv = ds->priv;
1742 ret = b53_arl_op(priv, 0, port, mdb->addr, mdb->vid, false);
1744 dev_err(ds->dev, "failed to delete MDB entry\n");
1748 EXPORT_SYMBOL(b53_mdb_del);
1750 int b53_br_join(struct dsa_switch *ds, int port, struct net_device *br)
1752 struct b53_device *dev = ds->priv;
1753 s8 cpu_port = dsa_to_port(ds, port)->cpu_dp->index;
1757 /* On 7278, port 7 which connects to the ASP should only receive
1758 * traffic from matching CFP rules.
1760 if (dev->chip_id == BCM7278_DEVICE_ID && port == 7)
1763 /* Make this port leave the all VLANs join since we will have proper
1764 * VLAN entries from now on
1767 b53_read16(dev, B53_VLAN_PAGE, B53_JOIN_ALL_VLAN_EN, ®);
1769 if ((reg & BIT(cpu_port)) == BIT(cpu_port))
1770 reg &= ~BIT(cpu_port);
1771 b53_write16(dev, B53_VLAN_PAGE, B53_JOIN_ALL_VLAN_EN, reg);
1774 b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), &pvlan);
1776 b53_for_each_port(dev, i) {
1777 if (dsa_to_port(ds, i)->bridge_dev != br)
1780 /* Add this local port to the remote port VLAN control
1781 * membership and update the remote port bitmask
1783 b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), ®);
1785 b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), reg);
1786 dev->ports[i].vlan_ctl_mask = reg;
1791 /* Configure the local port VLAN control membership to include
1792 * remote ports and update the local port bitmask
1794 b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), pvlan);
1795 dev->ports[port].vlan_ctl_mask = pvlan;
1799 EXPORT_SYMBOL(b53_br_join);
1801 void b53_br_leave(struct dsa_switch *ds, int port, struct net_device *br)
1803 struct b53_device *dev = ds->priv;
1804 struct b53_vlan *vl = &dev->vlans[0];
1805 s8 cpu_port = dsa_to_port(ds, port)->cpu_dp->index;
1807 u16 pvlan, reg, pvid;
1809 b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), &pvlan);
1811 b53_for_each_port(dev, i) {
1812 /* Don't touch the remaining ports */
1813 if (dsa_to_port(ds, i)->bridge_dev != br)
1816 b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), ®);
1818 b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), reg);
1819 dev->ports[port].vlan_ctl_mask = reg;
1821 /* Prevent self removal to preserve isolation */
1826 b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), pvlan);
1827 dev->ports[port].vlan_ctl_mask = pvlan;
1829 pvid = b53_default_pvid(dev);
1831 /* Make this port join all VLANs without VLAN entries */
1833 b53_read16(dev, B53_VLAN_PAGE, B53_JOIN_ALL_VLAN_EN, ®);
1835 if (!(reg & BIT(cpu_port)))
1836 reg |= BIT(cpu_port);
1837 b53_write16(dev, B53_VLAN_PAGE, B53_JOIN_ALL_VLAN_EN, reg);
1839 b53_get_vlan_entry(dev, pvid, vl);
1840 vl->members |= BIT(port) | BIT(cpu_port);
1841 vl->untag |= BIT(port) | BIT(cpu_port);
1842 b53_set_vlan_entry(dev, pvid, vl);
1845 EXPORT_SYMBOL(b53_br_leave);
1847 void b53_br_set_stp_state(struct dsa_switch *ds, int port, u8 state)
1849 struct b53_device *dev = ds->priv;
1854 case BR_STATE_DISABLED:
1855 hw_state = PORT_CTRL_DIS_STATE;
1857 case BR_STATE_LISTENING:
1858 hw_state = PORT_CTRL_LISTEN_STATE;
1860 case BR_STATE_LEARNING:
1861 hw_state = PORT_CTRL_LEARN_STATE;
1863 case BR_STATE_FORWARDING:
1864 hw_state = PORT_CTRL_FWD_STATE;
1866 case BR_STATE_BLOCKING:
1867 hw_state = PORT_CTRL_BLOCK_STATE;
1870 dev_err(ds->dev, "invalid STP state: %d\n", state);
1874 b53_read8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), ®);
1875 reg &= ~PORT_CTRL_STP_STATE_MASK;
1877 b53_write8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), reg);
1879 EXPORT_SYMBOL(b53_br_set_stp_state);
1881 void b53_br_fast_age(struct dsa_switch *ds, int port)
1883 struct b53_device *dev = ds->priv;
1885 if (b53_fast_age_port(dev, port))
1886 dev_err(ds->dev, "fast ageing failed\n");
1888 EXPORT_SYMBOL(b53_br_fast_age);
1890 int b53_br_egress_floods(struct dsa_switch *ds, int port,
1891 bool unicast, bool multicast)
1893 struct b53_device *dev = ds->priv;
1896 b53_read16(dev, B53_CTRL_PAGE, B53_UC_FLOOD_MASK, &uc);
1901 b53_write16(dev, B53_CTRL_PAGE, B53_UC_FLOOD_MASK, uc);
1903 b53_read16(dev, B53_CTRL_PAGE, B53_MC_FLOOD_MASK, &mc);
1908 b53_write16(dev, B53_CTRL_PAGE, B53_MC_FLOOD_MASK, mc);
1910 b53_read16(dev, B53_CTRL_PAGE, B53_IPMC_FLOOD_MASK, &mc);
1915 b53_write16(dev, B53_CTRL_PAGE, B53_IPMC_FLOOD_MASK, mc);
1920 EXPORT_SYMBOL(b53_br_egress_floods);
1922 static bool b53_possible_cpu_port(struct dsa_switch *ds, int port)
1924 /* Broadcom switches will accept enabling Broadcom tags on the
1925 * following ports: 5, 7 and 8, any other port is not supported
1928 case B53_CPU_PORT_25:
1937 static bool b53_can_enable_brcm_tags(struct dsa_switch *ds, int port,
1938 enum dsa_tag_protocol tag_protocol)
1940 bool ret = b53_possible_cpu_port(ds, port);
1943 dev_warn(ds->dev, "Port %d is not Broadcom tag capable\n",
1948 switch (tag_protocol) {
1949 case DSA_TAG_PROTO_BRCM:
1950 case DSA_TAG_PROTO_BRCM_PREPEND:
1952 "Port %d is stacked to Broadcom tag switch\n", port);
1963 enum dsa_tag_protocol b53_get_tag_protocol(struct dsa_switch *ds, int port,
1964 enum dsa_tag_protocol mprot)
1966 struct b53_device *dev = ds->priv;
1968 /* Older models (5325, 5365) support a different tag format that we do
1969 * not support in net/dsa/tag_brcm.c yet.
1971 if (is5325(dev) || is5365(dev) ||
1972 !b53_can_enable_brcm_tags(ds, port, mprot)) {
1973 dev->tag_protocol = DSA_TAG_PROTO_NONE;
1977 /* Broadcom BCM58xx chips have a flow accelerator on Port 8
1978 * which requires us to use the prepended Broadcom tag type
1980 if (dev->chip_id == BCM58XX_DEVICE_ID && port == B53_CPU_PORT) {
1981 dev->tag_protocol = DSA_TAG_PROTO_BRCM_PREPEND;
1985 dev->tag_protocol = DSA_TAG_PROTO_BRCM;
1987 return dev->tag_protocol;
1989 EXPORT_SYMBOL(b53_get_tag_protocol);
1991 int b53_mirror_add(struct dsa_switch *ds, int port,
1992 struct dsa_mall_mirror_tc_entry *mirror, bool ingress)
1994 struct b53_device *dev = ds->priv;
1998 loc = B53_IG_MIR_CTL;
2000 loc = B53_EG_MIR_CTL;
2002 b53_read16(dev, B53_MGMT_PAGE, loc, ®);
2004 b53_write16(dev, B53_MGMT_PAGE, loc, reg);
2006 b53_read16(dev, B53_MGMT_PAGE, B53_MIR_CAP_CTL, ®);
2007 reg &= ~CAP_PORT_MASK;
2008 reg |= mirror->to_local_port;
2010 b53_write16(dev, B53_MGMT_PAGE, B53_MIR_CAP_CTL, reg);
2014 EXPORT_SYMBOL(b53_mirror_add);
2016 void b53_mirror_del(struct dsa_switch *ds, int port,
2017 struct dsa_mall_mirror_tc_entry *mirror)
2019 struct b53_device *dev = ds->priv;
2020 bool loc_disable = false, other_loc_disable = false;
2023 if (mirror->ingress)
2024 loc = B53_IG_MIR_CTL;
2026 loc = B53_EG_MIR_CTL;
2028 /* Update the desired ingress/egress register */
2029 b53_read16(dev, B53_MGMT_PAGE, loc, ®);
2031 if (!(reg & MIRROR_MASK))
2033 b53_write16(dev, B53_MGMT_PAGE, loc, reg);
2035 /* Now look at the other one to know if we can disable mirroring
2038 if (mirror->ingress)
2039 b53_read16(dev, B53_MGMT_PAGE, B53_EG_MIR_CTL, ®);
2041 b53_read16(dev, B53_MGMT_PAGE, B53_IG_MIR_CTL, ®);
2042 if (!(reg & MIRROR_MASK))
2043 other_loc_disable = true;
2045 b53_read16(dev, B53_MGMT_PAGE, B53_MIR_CAP_CTL, ®);
2046 /* Both no longer have ports, let's disable mirroring */
2047 if (loc_disable && other_loc_disable) {
2049 reg &= ~mirror->to_local_port;
2051 b53_write16(dev, B53_MGMT_PAGE, B53_MIR_CAP_CTL, reg);
2053 EXPORT_SYMBOL(b53_mirror_del);
2055 void b53_eee_enable_set(struct dsa_switch *ds, int port, bool enable)
2057 struct b53_device *dev = ds->priv;
2060 b53_read16(dev, B53_EEE_PAGE, B53_EEE_EN_CTRL, ®);
2065 b53_write16(dev, B53_EEE_PAGE, B53_EEE_EN_CTRL, reg);
2067 EXPORT_SYMBOL(b53_eee_enable_set);
2070 /* Returns 0 if EEE was not enabled, or 1 otherwise
2072 int b53_eee_init(struct dsa_switch *ds, int port, struct phy_device *phy)
2076 ret = phy_init_eee(phy, 0);
2080 b53_eee_enable_set(ds, port, true);
2084 EXPORT_SYMBOL(b53_eee_init);
2086 int b53_get_mac_eee(struct dsa_switch *ds, int port, struct ethtool_eee *e)
2088 struct b53_device *dev = ds->priv;
2089 struct ethtool_eee *p = &dev->ports[port].eee;
2092 if (is5325(dev) || is5365(dev))
2095 b53_read16(dev, B53_EEE_PAGE, B53_EEE_LPI_INDICATE, ®);
2096 e->eee_enabled = p->eee_enabled;
2097 e->eee_active = !!(reg & BIT(port));
2101 EXPORT_SYMBOL(b53_get_mac_eee);
2103 int b53_set_mac_eee(struct dsa_switch *ds, int port, struct ethtool_eee *e)
2105 struct b53_device *dev = ds->priv;
2106 struct ethtool_eee *p = &dev->ports[port].eee;
2108 if (is5325(dev) || is5365(dev))
2111 p->eee_enabled = e->eee_enabled;
2112 b53_eee_enable_set(ds, port, e->eee_enabled);
2116 EXPORT_SYMBOL(b53_set_mac_eee);
2118 static int b53_change_mtu(struct dsa_switch *ds, int port, int mtu)
2120 struct b53_device *dev = ds->priv;
2124 if (is5325(dev) || is5365(dev))
2127 enable_jumbo = (mtu >= JMS_MIN_SIZE);
2128 allow_10_100 = (dev->chip_id == BCM583XX_DEVICE_ID);
2130 return b53_set_jumbo(dev, enable_jumbo, allow_10_100);
2133 static int b53_get_max_mtu(struct dsa_switch *ds, int port)
2135 return JMS_MAX_SIZE;
2138 static const struct dsa_switch_ops b53_switch_ops = {
2139 .get_tag_protocol = b53_get_tag_protocol,
2141 .get_strings = b53_get_strings,
2142 .get_ethtool_stats = b53_get_ethtool_stats,
2143 .get_sset_count = b53_get_sset_count,
2144 .get_ethtool_phy_stats = b53_get_ethtool_phy_stats,
2145 .phy_read = b53_phy_read16,
2146 .phy_write = b53_phy_write16,
2147 .adjust_link = b53_adjust_link,
2148 .phylink_validate = b53_phylink_validate,
2149 .phylink_mac_link_state = b53_phylink_mac_link_state,
2150 .phylink_mac_config = b53_phylink_mac_config,
2151 .phylink_mac_an_restart = b53_phylink_mac_an_restart,
2152 .phylink_mac_link_down = b53_phylink_mac_link_down,
2153 .phylink_mac_link_up = b53_phylink_mac_link_up,
2154 .port_enable = b53_enable_port,
2155 .port_disable = b53_disable_port,
2156 .get_mac_eee = b53_get_mac_eee,
2157 .set_mac_eee = b53_set_mac_eee,
2158 .port_bridge_join = b53_br_join,
2159 .port_bridge_leave = b53_br_leave,
2160 .port_stp_state_set = b53_br_set_stp_state,
2161 .port_fast_age = b53_br_fast_age,
2162 .port_egress_floods = b53_br_egress_floods,
2163 .port_vlan_filtering = b53_vlan_filtering,
2164 .port_vlan_prepare = b53_vlan_prepare,
2165 .port_vlan_add = b53_vlan_add,
2166 .port_vlan_del = b53_vlan_del,
2167 .port_fdb_dump = b53_fdb_dump,
2168 .port_fdb_add = b53_fdb_add,
2169 .port_fdb_del = b53_fdb_del,
2170 .port_mirror_add = b53_mirror_add,
2171 .port_mirror_del = b53_mirror_del,
2172 .port_mdb_prepare = b53_mdb_prepare,
2173 .port_mdb_add = b53_mdb_add,
2174 .port_mdb_del = b53_mdb_del,
2175 .port_max_mtu = b53_get_max_mtu,
2176 .port_change_mtu = b53_change_mtu,
2179 struct b53_chip_data {
2181 const char *dev_name;
2193 #define B53_VTA_REGS \
2194 { B53_VT_ACCESS, B53_VT_INDEX, B53_VT_ENTRY }
2195 #define B53_VTA_REGS_9798 \
2196 { B53_VT_ACCESS_9798, B53_VT_INDEX_9798, B53_VT_ENTRY_9798 }
2197 #define B53_VTA_REGS_63XX \
2198 { B53_VT_ACCESS_63XX, B53_VT_INDEX_63XX, B53_VT_ENTRY_63XX }
2200 static const struct b53_chip_data b53_switch_chips[] = {
2202 .chip_id = BCM5325_DEVICE_ID,
2203 .dev_name = "BCM5325",
2205 .enabled_ports = 0x1f,
2207 .arl_buckets = 1024,
2208 .cpu_port = B53_CPU_PORT_25,
2209 .duplex_reg = B53_DUPLEX_STAT_FE,
2212 .chip_id = BCM5365_DEVICE_ID,
2213 .dev_name = "BCM5365",
2215 .enabled_ports = 0x1f,
2217 .arl_buckets = 1024,
2218 .cpu_port = B53_CPU_PORT_25,
2219 .duplex_reg = B53_DUPLEX_STAT_FE,
2222 .chip_id = BCM5389_DEVICE_ID,
2223 .dev_name = "BCM5389",
2225 .enabled_ports = 0x1f,
2227 .arl_buckets = 1024,
2228 .cpu_port = B53_CPU_PORT,
2229 .vta_regs = B53_VTA_REGS,
2230 .duplex_reg = B53_DUPLEX_STAT_GE,
2231 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2232 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2235 .chip_id = BCM5395_DEVICE_ID,
2236 .dev_name = "BCM5395",
2238 .enabled_ports = 0x1f,
2240 .arl_buckets = 1024,
2241 .cpu_port = B53_CPU_PORT,
2242 .vta_regs = B53_VTA_REGS,
2243 .duplex_reg = B53_DUPLEX_STAT_GE,
2244 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2245 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2248 .chip_id = BCM5397_DEVICE_ID,
2249 .dev_name = "BCM5397",
2251 .enabled_ports = 0x1f,
2253 .arl_buckets = 1024,
2254 .cpu_port = B53_CPU_PORT,
2255 .vta_regs = B53_VTA_REGS_9798,
2256 .duplex_reg = B53_DUPLEX_STAT_GE,
2257 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2258 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2261 .chip_id = BCM5398_DEVICE_ID,
2262 .dev_name = "BCM5398",
2264 .enabled_ports = 0x7f,
2266 .arl_buckets = 1024,
2267 .cpu_port = B53_CPU_PORT,
2268 .vta_regs = B53_VTA_REGS_9798,
2269 .duplex_reg = B53_DUPLEX_STAT_GE,
2270 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2271 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2274 .chip_id = BCM53115_DEVICE_ID,
2275 .dev_name = "BCM53115",
2277 .enabled_ports = 0x1f,
2279 .arl_buckets = 1024,
2280 .vta_regs = B53_VTA_REGS,
2281 .cpu_port = B53_CPU_PORT,
2282 .duplex_reg = B53_DUPLEX_STAT_GE,
2283 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2284 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2287 .chip_id = BCM53125_DEVICE_ID,
2288 .dev_name = "BCM53125",
2290 .enabled_ports = 0xff,
2292 .arl_buckets = 1024,
2293 .cpu_port = B53_CPU_PORT,
2294 .vta_regs = B53_VTA_REGS,
2295 .duplex_reg = B53_DUPLEX_STAT_GE,
2296 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2297 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2300 .chip_id = BCM53128_DEVICE_ID,
2301 .dev_name = "BCM53128",
2303 .enabled_ports = 0x1ff,
2305 .arl_buckets = 1024,
2306 .cpu_port = B53_CPU_PORT,
2307 .vta_regs = B53_VTA_REGS,
2308 .duplex_reg = B53_DUPLEX_STAT_GE,
2309 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2310 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2313 .chip_id = BCM63XX_DEVICE_ID,
2314 .dev_name = "BCM63xx",
2316 .enabled_ports = 0, /* pdata must provide them */
2318 .arl_buckets = 1024,
2319 .cpu_port = B53_CPU_PORT,
2320 .vta_regs = B53_VTA_REGS_63XX,
2321 .duplex_reg = B53_DUPLEX_STAT_63XX,
2322 .jumbo_pm_reg = B53_JUMBO_PORT_MASK_63XX,
2323 .jumbo_size_reg = B53_JUMBO_MAX_SIZE_63XX,
2326 .chip_id = BCM53010_DEVICE_ID,
2327 .dev_name = "BCM53010",
2329 .enabled_ports = 0x1f,
2331 .arl_buckets = 1024,
2332 .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */
2333 .vta_regs = B53_VTA_REGS,
2334 .duplex_reg = B53_DUPLEX_STAT_GE,
2335 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2336 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2339 .chip_id = BCM53011_DEVICE_ID,
2340 .dev_name = "BCM53011",
2342 .enabled_ports = 0x1bf,
2344 .arl_buckets = 1024,
2345 .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */
2346 .vta_regs = B53_VTA_REGS,
2347 .duplex_reg = B53_DUPLEX_STAT_GE,
2348 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2349 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2352 .chip_id = BCM53012_DEVICE_ID,
2353 .dev_name = "BCM53012",
2355 .enabled_ports = 0x1bf,
2357 .arl_buckets = 1024,
2358 .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */
2359 .vta_regs = B53_VTA_REGS,
2360 .duplex_reg = B53_DUPLEX_STAT_GE,
2361 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2362 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2365 .chip_id = BCM53018_DEVICE_ID,
2366 .dev_name = "BCM53018",
2368 .enabled_ports = 0x1f,
2370 .arl_buckets = 1024,
2371 .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */
2372 .vta_regs = B53_VTA_REGS,
2373 .duplex_reg = B53_DUPLEX_STAT_GE,
2374 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2375 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2378 .chip_id = BCM53019_DEVICE_ID,
2379 .dev_name = "BCM53019",
2381 .enabled_ports = 0x1f,
2383 .arl_buckets = 1024,
2384 .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */
2385 .vta_regs = B53_VTA_REGS,
2386 .duplex_reg = B53_DUPLEX_STAT_GE,
2387 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2388 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2391 .chip_id = BCM58XX_DEVICE_ID,
2392 .dev_name = "BCM585xx/586xx/88312",
2394 .enabled_ports = 0x1ff,
2396 .arl_buckets = 1024,
2397 .cpu_port = B53_CPU_PORT,
2398 .vta_regs = B53_VTA_REGS,
2399 .duplex_reg = B53_DUPLEX_STAT_GE,
2400 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2401 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2404 .chip_id = BCM583XX_DEVICE_ID,
2405 .dev_name = "BCM583xx/11360",
2407 .enabled_ports = 0x103,
2409 .arl_buckets = 1024,
2410 .cpu_port = B53_CPU_PORT,
2411 .vta_regs = B53_VTA_REGS,
2412 .duplex_reg = B53_DUPLEX_STAT_GE,
2413 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2414 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2417 .chip_id = BCM7445_DEVICE_ID,
2418 .dev_name = "BCM7445",
2420 .enabled_ports = 0x1ff,
2422 .arl_buckets = 1024,
2423 .cpu_port = B53_CPU_PORT,
2424 .vta_regs = B53_VTA_REGS,
2425 .duplex_reg = B53_DUPLEX_STAT_GE,
2426 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2427 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2430 .chip_id = BCM7278_DEVICE_ID,
2431 .dev_name = "BCM7278",
2433 .enabled_ports = 0x1ff,
2436 .cpu_port = B53_CPU_PORT,
2437 .vta_regs = B53_VTA_REGS,
2438 .duplex_reg = B53_DUPLEX_STAT_GE,
2439 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2440 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2444 static int b53_switch_init(struct b53_device *dev)
2449 for (i = 0; i < ARRAY_SIZE(b53_switch_chips); i++) {
2450 const struct b53_chip_data *chip = &b53_switch_chips[i];
2452 if (chip->chip_id == dev->chip_id) {
2453 if (!dev->enabled_ports)
2454 dev->enabled_ports = chip->enabled_ports;
2455 dev->name = chip->dev_name;
2456 dev->duplex_reg = chip->duplex_reg;
2457 dev->vta_regs[0] = chip->vta_regs[0];
2458 dev->vta_regs[1] = chip->vta_regs[1];
2459 dev->vta_regs[2] = chip->vta_regs[2];
2460 dev->jumbo_pm_reg = chip->jumbo_pm_reg;
2461 dev->cpu_port = chip->cpu_port;
2462 dev->num_vlans = chip->vlans;
2463 dev->num_arl_bins = chip->arl_bins;
2464 dev->num_arl_buckets = chip->arl_buckets;
2469 /* check which BCM5325x version we have */
2473 b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_25, &vc4);
2475 /* check reserved bits */
2481 /* BCM5325F - do not use port 4 */
2482 dev->enabled_ports &= ~BIT(4);
2485 /* On the BCM47XX SoCs this is the supported internal switch.*/
2486 #ifndef CONFIG_BCM47XX
2493 } else if (dev->chip_id == BCM53115_DEVICE_ID) {
2496 b53_read48(dev, B53_STAT_PAGE, B53_STRAP_VALUE, &strap_value);
2497 /* use second IMP port if GMII is enabled */
2498 if (strap_value & SV_GMII_CTRL_115)
2502 /* cpu port is always last */
2503 dev->num_ports = dev->cpu_port + 1;
2504 dev->enabled_ports |= BIT(dev->cpu_port);
2506 /* Include non standard CPU port built-in PHYs to be probed */
2507 if (is539x(dev) || is531x5(dev)) {
2508 for (i = 0; i < dev->num_ports; i++) {
2509 if (!(dev->ds->phys_mii_mask & BIT(i)) &&
2510 !b53_possible_cpu_port(dev->ds, i))
2511 dev->ds->phys_mii_mask |= BIT(i);
2515 dev->ports = devm_kcalloc(dev->dev,
2516 dev->num_ports, sizeof(struct b53_port),
2521 dev->vlans = devm_kcalloc(dev->dev,
2522 dev->num_vlans, sizeof(struct b53_vlan),
2527 dev->reset_gpio = b53_switch_get_reset_gpio(dev);
2528 if (dev->reset_gpio >= 0) {
2529 ret = devm_gpio_request_one(dev->dev, dev->reset_gpio,
2530 GPIOF_OUT_INIT_HIGH, "robo_reset");
2538 struct b53_device *b53_switch_alloc(struct device *base,
2539 const struct b53_io_ops *ops,
2542 struct dsa_switch *ds;
2543 struct b53_device *dev;
2545 ds = devm_kzalloc(base, sizeof(*ds), GFP_KERNEL);
2550 ds->num_ports = DSA_MAX_PORTS;
2552 dev = devm_kzalloc(base, sizeof(*dev), GFP_KERNEL);
2562 ds->ops = &b53_switch_ops;
2563 mutex_init(&dev->reg_mutex);
2564 mutex_init(&dev->stats_mutex);
2568 EXPORT_SYMBOL(b53_switch_alloc);
2570 int b53_switch_detect(struct b53_device *dev)
2577 ret = b53_read8(dev, B53_MGMT_PAGE, B53_DEVICE_ID, &id8);
2583 /* BCM5325 and BCM5365 do not have this register so reads
2584 * return 0. But the read operation did succeed, so assume this
2587 * Next check if we can write to the 5325's VTA register; for
2588 * 5365 it is read only.
2590 b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_25, 0xf);
2591 b53_read16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_25, &tmp);
2594 dev->chip_id = BCM5325_DEVICE_ID;
2596 dev->chip_id = BCM5365_DEVICE_ID;
2598 case BCM5389_DEVICE_ID:
2599 case BCM5395_DEVICE_ID:
2600 case BCM5397_DEVICE_ID:
2601 case BCM5398_DEVICE_ID:
2605 ret = b53_read32(dev, B53_MGMT_PAGE, B53_DEVICE_ID, &id32);
2610 case BCM53115_DEVICE_ID:
2611 case BCM53125_DEVICE_ID:
2612 case BCM53128_DEVICE_ID:
2613 case BCM53010_DEVICE_ID:
2614 case BCM53011_DEVICE_ID:
2615 case BCM53012_DEVICE_ID:
2616 case BCM53018_DEVICE_ID:
2617 case BCM53019_DEVICE_ID:
2618 dev->chip_id = id32;
2621 pr_err("unsupported switch detected (BCM53%02x/BCM%x)\n",
2627 if (dev->chip_id == BCM5325_DEVICE_ID)
2628 return b53_read8(dev, B53_STAT_PAGE, B53_REV_ID_25,
2631 return b53_read8(dev, B53_MGMT_PAGE, B53_REV_ID,
2634 EXPORT_SYMBOL(b53_switch_detect);
2636 int b53_switch_register(struct b53_device *dev)
2641 dev->chip_id = dev->pdata->chip_id;
2642 dev->enabled_ports = dev->pdata->enabled_ports;
2645 if (!dev->chip_id && b53_switch_detect(dev))
2648 ret = b53_switch_init(dev);
2652 pr_info("found switch: %s, rev %i\n", dev->name, dev->core_rev);
2654 return dsa_register_switch(dev->ds);
2656 EXPORT_SYMBOL(b53_switch_register);
2658 MODULE_AUTHOR("Jonas Gorski <jogo@openwrt.org>");
2659 MODULE_DESCRIPTION("B53 switch library");
2660 MODULE_LICENSE("Dual BSD/GPL");