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);
347 static void b53_enable_vlan(struct b53_device *dev, bool enable,
348 bool enable_filtering)
350 u8 mgmt, vc0, vc1, vc4 = 0, vc5;
352 b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt);
353 b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL0, &vc0);
354 b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL1, &vc1);
356 if (is5325(dev) || is5365(dev)) {
357 b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_25, &vc4);
358 b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5_25, &vc5);
359 } else if (is63xx(dev)) {
360 b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_63XX, &vc4);
361 b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5_63XX, &vc5);
363 b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4, &vc4);
364 b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5, &vc5);
367 mgmt &= ~SM_SW_FWD_MODE;
370 vc0 |= VC0_VLAN_EN | VC0_VID_CHK_EN | VC0_VID_HASH_VID;
371 vc1 |= VC1_RX_MCST_UNTAG_EN | VC1_RX_MCST_FWD_EN;
372 vc4 &= ~VC4_ING_VID_CHECK_MASK;
373 if (enable_filtering) {
374 vc4 |= VC4_ING_VID_VIO_DROP << VC4_ING_VID_CHECK_S;
375 vc5 |= VC5_DROP_VTABLE_MISS;
377 vc4 |= VC4_ING_VID_VIO_FWD << VC4_ING_VID_CHECK_S;
378 vc5 &= ~VC5_DROP_VTABLE_MISS;
382 vc0 &= ~VC0_RESERVED_1;
384 if (is5325(dev) || is5365(dev))
385 vc1 |= VC1_RX_MCST_TAG_EN;
388 vc0 &= ~(VC0_VLAN_EN | VC0_VID_CHK_EN | VC0_VID_HASH_VID);
389 vc1 &= ~(VC1_RX_MCST_UNTAG_EN | VC1_RX_MCST_FWD_EN);
390 vc4 &= ~VC4_ING_VID_CHECK_MASK;
391 vc5 &= ~VC5_DROP_VTABLE_MISS;
393 if (is5325(dev) || is5365(dev))
394 vc4 |= VC4_ING_VID_VIO_FWD << VC4_ING_VID_CHECK_S;
396 vc4 |= VC4_ING_VID_VIO_TO_IMP << VC4_ING_VID_CHECK_S;
398 if (is5325(dev) || is5365(dev))
399 vc1 &= ~VC1_RX_MCST_TAG_EN;
402 if (!is5325(dev) && !is5365(dev))
403 vc5 &= ~VC5_VID_FFF_EN;
405 b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL0, vc0);
406 b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL1, vc1);
408 if (is5325(dev) || is5365(dev)) {
409 /* enable the high 8 bit vid check on 5325 */
410 if (is5325(dev) && enable)
411 b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL3,
414 b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL3, 0);
416 b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_25, vc4);
417 b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5_25, vc5);
418 } else if (is63xx(dev)) {
419 b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_CTRL3_63XX, 0);
420 b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_63XX, vc4);
421 b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5_63XX, vc5);
423 b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_CTRL3, 0);
424 b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4, vc4);
425 b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5, vc5);
428 b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, mgmt);
430 dev->vlan_enabled = enable;
433 static int b53_set_jumbo(struct b53_device *dev, bool enable, bool allow_10_100)
436 u16 max_size = JMS_MIN_SIZE;
438 if (is5325(dev) || is5365(dev))
442 port_mask = dev->enabled_ports;
443 max_size = JMS_MAX_SIZE;
445 port_mask |= JPM_10_100_JUMBO_EN;
448 b53_write32(dev, B53_JUMBO_PAGE, dev->jumbo_pm_reg, port_mask);
449 return b53_write16(dev, B53_JUMBO_PAGE, dev->jumbo_size_reg, max_size);
452 static int b53_flush_arl(struct b53_device *dev, u8 mask)
456 b53_write8(dev, B53_CTRL_PAGE, B53_FAST_AGE_CTRL,
457 FAST_AGE_DONE | FAST_AGE_DYNAMIC | mask);
459 for (i = 0; i < 10; i++) {
462 b53_read8(dev, B53_CTRL_PAGE, B53_FAST_AGE_CTRL,
465 if (!(fast_age_ctrl & FAST_AGE_DONE))
473 /* Only age dynamic entries (default behavior) */
474 b53_write8(dev, B53_CTRL_PAGE, B53_FAST_AGE_CTRL, FAST_AGE_DYNAMIC);
478 static int b53_fast_age_port(struct b53_device *dev, int port)
480 b53_write8(dev, B53_CTRL_PAGE, B53_FAST_AGE_PORT_CTRL, port);
482 return b53_flush_arl(dev, FAST_AGE_PORT);
485 static int b53_fast_age_vlan(struct b53_device *dev, u16 vid)
487 b53_write16(dev, B53_CTRL_PAGE, B53_FAST_AGE_VID_CTRL, vid);
489 return b53_flush_arl(dev, FAST_AGE_VLAN);
492 void b53_imp_vlan_setup(struct dsa_switch *ds, int cpu_port)
494 struct b53_device *dev = ds->priv;
498 /* Enable the IMP port to be in the same VLAN as the other ports
499 * on a per-port basis such that we only have Port i and IMP in
502 b53_for_each_port(dev, i) {
503 b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), &pvlan);
504 pvlan |= BIT(cpu_port);
505 b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), pvlan);
508 EXPORT_SYMBOL(b53_imp_vlan_setup);
510 int b53_enable_port(struct dsa_switch *ds, int port, struct phy_device *phy)
512 struct b53_device *dev = ds->priv;
513 unsigned int cpu_port = ds->ports[port].cpu_dp->index;
517 if (dev->ops->irq_enable)
518 ret = dev->ops->irq_enable(dev, port);
522 /* Clear the Rx and Tx disable bits and set to no spanning tree */
523 b53_write8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), 0);
525 /* Set this port, and only this one to be in the default VLAN,
526 * if member of a bridge, restore its membership prior to
527 * bringing down this port.
529 b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), &pvlan);
532 pvlan |= dev->ports[port].vlan_ctl_mask;
533 b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), pvlan);
535 b53_imp_vlan_setup(ds, cpu_port);
537 /* If EEE was enabled, restore it */
538 if (dev->ports[port].eee.eee_enabled)
539 b53_eee_enable_set(ds, port, true);
543 EXPORT_SYMBOL(b53_enable_port);
545 void b53_disable_port(struct dsa_switch *ds, int port)
547 struct b53_device *dev = ds->priv;
550 /* Disable Tx/Rx for the port */
551 b53_read8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), ®);
552 reg |= PORT_CTRL_RX_DISABLE | PORT_CTRL_TX_DISABLE;
553 b53_write8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), reg);
555 if (dev->ops->irq_disable)
556 dev->ops->irq_disable(dev, port);
558 EXPORT_SYMBOL(b53_disable_port);
560 void b53_brcm_hdr_setup(struct dsa_switch *ds, int port)
562 bool tag_en = !(ds->ops->get_tag_protocol(ds, port) ==
564 struct b53_device *dev = ds->priv;
568 /* Resolve which bit controls the Broadcom tag */
571 val = BRCM_HDR_P8_EN;
574 val = BRCM_HDR_P7_EN;
577 val = BRCM_HDR_P5_EN;
584 /* Enable Broadcom tags for IMP port */
585 b53_read8(dev, B53_MGMT_PAGE, B53_BRCM_HDR, &hdr_ctl);
590 b53_write8(dev, B53_MGMT_PAGE, B53_BRCM_HDR, hdr_ctl);
592 /* Registers below are only accessible on newer devices */
596 /* Enable reception Broadcom tag for CPU TX (switch RX) to
597 * allow us to tag outgoing frames
599 b53_read16(dev, B53_MGMT_PAGE, B53_BRCM_HDR_RX_DIS, ®);
604 b53_write16(dev, B53_MGMT_PAGE, B53_BRCM_HDR_RX_DIS, reg);
606 /* Enable transmission of Broadcom tags from the switch (CPU RX) to
607 * allow delivering frames to the per-port net_devices
609 b53_read16(dev, B53_MGMT_PAGE, B53_BRCM_HDR_TX_DIS, ®);
614 b53_write16(dev, B53_MGMT_PAGE, B53_BRCM_HDR_TX_DIS, reg);
616 EXPORT_SYMBOL(b53_brcm_hdr_setup);
618 static void b53_enable_cpu_port(struct b53_device *dev, int port)
622 /* BCM5325 CPU port is at 8 */
623 if ((is5325(dev) || is5365(dev)) && port == B53_CPU_PORT_25)
626 port_ctrl = PORT_CTRL_RX_BCST_EN |
627 PORT_CTRL_RX_MCST_EN |
628 PORT_CTRL_RX_UCST_EN;
629 b53_write8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), port_ctrl);
631 b53_brcm_hdr_setup(dev->ds, port);
634 static void b53_enable_mib(struct b53_device *dev)
638 b53_read8(dev, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, &gc);
639 gc &= ~(GC_RESET_MIB | GC_MIB_AC_EN);
640 b53_write8(dev, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, gc);
643 static u16 b53_default_pvid(struct b53_device *dev)
645 if (is5325(dev) || is5365(dev))
651 int b53_configure_vlan(struct dsa_switch *ds)
653 struct b53_device *dev = ds->priv;
654 struct b53_vlan vl = { 0 };
657 def_vid = b53_default_pvid(dev);
659 /* clear all vlan entries */
660 if (is5325(dev) || is5365(dev)) {
661 for (i = def_vid; i < dev->num_vlans; i++)
662 b53_set_vlan_entry(dev, i, &vl);
664 b53_do_vlan_op(dev, VTA_CMD_CLEAR);
667 b53_enable_vlan(dev, false, ds->vlan_filtering);
669 b53_for_each_port(dev, i)
670 b53_write16(dev, B53_VLAN_PAGE,
671 B53_VLAN_PORT_DEF_TAG(i), def_vid);
673 if (!is5325(dev) && !is5365(dev))
674 b53_set_jumbo(dev, dev->enable_jumbo, false);
678 EXPORT_SYMBOL(b53_configure_vlan);
680 static void b53_switch_reset_gpio(struct b53_device *dev)
682 int gpio = dev->reset_gpio;
687 /* Reset sequence: RESET low(50ms)->high(20ms)
689 gpio_set_value(gpio, 0);
692 gpio_set_value(gpio, 1);
695 dev->current_page = 0xff;
698 static int b53_switch_reset(struct b53_device *dev)
700 unsigned int timeout = 1000;
703 b53_switch_reset_gpio(dev);
706 b53_write8(dev, B53_CTRL_PAGE, B53_SOFTRESET, 0x83);
707 b53_write8(dev, B53_CTRL_PAGE, B53_SOFTRESET, 0x00);
710 /* This is specific to 58xx devices here, do not use is58xx() which
711 * covers the larger Starfigther 2 family, including 7445/7278 which
712 * still use this driver as a library and need to perform the reset
715 if (dev->chip_id == BCM58XX_DEVICE_ID ||
716 dev->chip_id == BCM583XX_DEVICE_ID) {
717 b53_read8(dev, B53_CTRL_PAGE, B53_SOFTRESET, ®);
718 reg |= SW_RST | EN_SW_RST | EN_CH_RST;
719 b53_write8(dev, B53_CTRL_PAGE, B53_SOFTRESET, reg);
722 b53_read8(dev, B53_CTRL_PAGE, B53_SOFTRESET, ®);
726 usleep_range(1000, 2000);
727 } while (timeout-- > 0);
733 b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt);
735 if (!(mgmt & SM_SW_FWD_EN)) {
736 mgmt &= ~SM_SW_FWD_MODE;
737 mgmt |= SM_SW_FWD_EN;
739 b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, mgmt);
740 b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt);
742 if (!(mgmt & SM_SW_FWD_EN)) {
743 dev_err(dev->dev, "Failed to enable switch!\n");
750 return b53_flush_arl(dev, FAST_AGE_STATIC);
753 static int b53_phy_read16(struct dsa_switch *ds, int addr, int reg)
755 struct b53_device *priv = ds->priv;
759 if (priv->ops->phy_read16)
760 ret = priv->ops->phy_read16(priv, addr, reg, &value);
762 ret = b53_read16(priv, B53_PORT_MII_PAGE(addr),
765 return ret ? ret : value;
768 static int b53_phy_write16(struct dsa_switch *ds, int addr, int reg, u16 val)
770 struct b53_device *priv = ds->priv;
772 if (priv->ops->phy_write16)
773 return priv->ops->phy_write16(priv, addr, reg, val);
775 return b53_write16(priv, B53_PORT_MII_PAGE(addr), reg * 2, val);
778 static int b53_reset_switch(struct b53_device *priv)
781 priv->enable_jumbo = false;
783 memset(priv->vlans, 0, sizeof(*priv->vlans) * priv->num_vlans);
784 memset(priv->ports, 0, sizeof(*priv->ports) * priv->num_ports);
786 priv->serdes_lane = B53_INVALID_LANE;
788 return b53_switch_reset(priv);
791 static int b53_apply_config(struct b53_device *priv)
793 /* disable switching */
794 b53_set_forwarding(priv, 0);
796 b53_configure_vlan(priv->ds);
798 /* enable switching */
799 b53_set_forwarding(priv, 1);
804 static void b53_reset_mib(struct b53_device *priv)
808 b53_read8(priv, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, &gc);
810 b53_write8(priv, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, gc | GC_RESET_MIB);
812 b53_write8(priv, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, gc & ~GC_RESET_MIB);
816 static const struct b53_mib_desc *b53_get_mib(struct b53_device *dev)
820 else if (is63xx(dev))
821 return b53_mibs_63xx;
822 else if (is58xx(dev))
823 return b53_mibs_58xx;
828 static unsigned int b53_get_mib_size(struct b53_device *dev)
831 return B53_MIBS_65_SIZE;
832 else if (is63xx(dev))
833 return B53_MIBS_63XX_SIZE;
834 else if (is58xx(dev))
835 return B53_MIBS_58XX_SIZE;
837 return B53_MIBS_SIZE;
840 static struct phy_device *b53_get_phy_device(struct dsa_switch *ds, int port)
842 /* These ports typically do not have built-in PHYs */
844 case B53_CPU_PORT_25:
850 return mdiobus_get_phy(ds->slave_mii_bus, port);
853 void b53_get_strings(struct dsa_switch *ds, int port, u32 stringset,
856 struct b53_device *dev = ds->priv;
857 const struct b53_mib_desc *mibs = b53_get_mib(dev);
858 unsigned int mib_size = b53_get_mib_size(dev);
859 struct phy_device *phydev;
862 if (stringset == ETH_SS_STATS) {
863 for (i = 0; i < mib_size; i++)
864 strlcpy(data + i * ETH_GSTRING_LEN,
865 mibs[i].name, ETH_GSTRING_LEN);
866 } else if (stringset == ETH_SS_PHY_STATS) {
867 phydev = b53_get_phy_device(ds, port);
871 phy_ethtool_get_strings(phydev, data);
874 EXPORT_SYMBOL(b53_get_strings);
876 void b53_get_ethtool_stats(struct dsa_switch *ds, int port, uint64_t *data)
878 struct b53_device *dev = ds->priv;
879 const struct b53_mib_desc *mibs = b53_get_mib(dev);
880 unsigned int mib_size = b53_get_mib_size(dev);
881 const struct b53_mib_desc *s;
885 if (is5365(dev) && port == 5)
888 mutex_lock(&dev->stats_mutex);
890 for (i = 0; i < mib_size; i++) {
894 b53_read64(dev, B53_MIB_PAGE(port), s->offset, &val);
898 b53_read32(dev, B53_MIB_PAGE(port), s->offset,
905 mutex_unlock(&dev->stats_mutex);
907 EXPORT_SYMBOL(b53_get_ethtool_stats);
909 void b53_get_ethtool_phy_stats(struct dsa_switch *ds, int port, uint64_t *data)
911 struct phy_device *phydev;
913 phydev = b53_get_phy_device(ds, port);
917 phy_ethtool_get_stats(phydev, NULL, data);
919 EXPORT_SYMBOL(b53_get_ethtool_phy_stats);
921 int b53_get_sset_count(struct dsa_switch *ds, int port, int sset)
923 struct b53_device *dev = ds->priv;
924 struct phy_device *phydev;
926 if (sset == ETH_SS_STATS) {
927 return b53_get_mib_size(dev);
928 } else if (sset == ETH_SS_PHY_STATS) {
929 phydev = b53_get_phy_device(ds, port);
933 return phy_ethtool_get_sset_count(phydev);
938 EXPORT_SYMBOL(b53_get_sset_count);
940 static int b53_setup(struct dsa_switch *ds)
942 struct b53_device *dev = ds->priv;
946 ret = b53_reset_switch(dev);
948 dev_err(ds->dev, "failed to reset switch\n");
954 ret = b53_apply_config(dev);
956 dev_err(ds->dev, "failed to apply configuration\n");
958 /* Configure IMP/CPU port, disable all other ports. Enabled
959 * ports will be configured with .port_enable
961 for (port = 0; port < dev->num_ports; port++) {
962 if (dsa_is_cpu_port(ds, port))
963 b53_enable_cpu_port(dev, port);
965 b53_disable_port(ds, port);
968 /* Let DSA handle the case were multiple bridges span the same switch
969 * device and different VLAN awareness settings are requested, which
970 * would be breaking filtering semantics for any of the other bridge
971 * devices. (not hardware supported)
973 ds->vlan_filtering_is_global = true;
978 static void b53_force_link(struct b53_device *dev, int port, int link)
982 /* Override the port settings */
983 if (port == dev->cpu_port) {
984 off = B53_PORT_OVERRIDE_CTRL;
985 val = PORT_OVERRIDE_EN;
987 off = B53_GMII_PORT_OVERRIDE_CTRL(port);
991 b53_read8(dev, B53_CTRL_PAGE, off, ®);
994 reg |= PORT_OVERRIDE_LINK;
996 reg &= ~PORT_OVERRIDE_LINK;
997 b53_write8(dev, B53_CTRL_PAGE, off, reg);
1000 static void b53_force_port_config(struct b53_device *dev, int port,
1001 int speed, int duplex, int pause)
1005 /* Override the port settings */
1006 if (port == dev->cpu_port) {
1007 off = B53_PORT_OVERRIDE_CTRL;
1008 val = PORT_OVERRIDE_EN;
1010 off = B53_GMII_PORT_OVERRIDE_CTRL(port);
1014 b53_read8(dev, B53_CTRL_PAGE, off, ®);
1016 if (duplex == DUPLEX_FULL)
1017 reg |= PORT_OVERRIDE_FULL_DUPLEX;
1019 reg &= ~PORT_OVERRIDE_FULL_DUPLEX;
1023 reg |= PORT_OVERRIDE_SPEED_2000M;
1026 reg |= PORT_OVERRIDE_SPEED_1000M;
1029 reg |= PORT_OVERRIDE_SPEED_100M;
1032 reg |= PORT_OVERRIDE_SPEED_10M;
1035 dev_err(dev->dev, "unknown speed: %d\n", speed);
1039 if (pause & MLO_PAUSE_RX)
1040 reg |= PORT_OVERRIDE_RX_FLOW;
1041 if (pause & MLO_PAUSE_TX)
1042 reg |= PORT_OVERRIDE_TX_FLOW;
1044 b53_write8(dev, B53_CTRL_PAGE, off, reg);
1047 static void b53_adjust_link(struct dsa_switch *ds, int port,
1048 struct phy_device *phydev)
1050 struct b53_device *dev = ds->priv;
1051 struct ethtool_eee *p = &dev->ports[port].eee;
1052 u8 rgmii_ctrl = 0, reg = 0, off;
1055 if (!phy_is_pseudo_fixed_link(phydev))
1058 /* Enable flow control on BCM5301x's CPU port */
1059 if (is5301x(dev) && port == dev->cpu_port)
1060 pause = MLO_PAUSE_TXRX_MASK;
1062 if (phydev->pause) {
1063 if (phydev->asym_pause)
1064 pause |= MLO_PAUSE_TX;
1065 pause |= MLO_PAUSE_RX;
1068 b53_force_port_config(dev, port, phydev->speed, phydev->duplex, pause);
1069 b53_force_link(dev, port, phydev->link);
1071 if (is531x5(dev) && phy_interface_is_rgmii(phydev)) {
1073 off = B53_RGMII_CTRL_IMP;
1075 off = B53_RGMII_CTRL_P(port);
1077 /* Configure the port RGMII clock delay by DLL disabled and
1078 * tx_clk aligned timing (restoring to reset defaults)
1080 b53_read8(dev, B53_CTRL_PAGE, off, &rgmii_ctrl);
1081 rgmii_ctrl &= ~(RGMII_CTRL_DLL_RXC | RGMII_CTRL_DLL_TXC |
1082 RGMII_CTRL_TIMING_SEL);
1084 /* PHY_INTERFACE_MODE_RGMII_TXID means TX internal delay, make
1085 * sure that we enable the port TX clock internal delay to
1086 * account for this internal delay that is inserted, otherwise
1087 * the switch won't be able to receive correctly.
1089 * PHY_INTERFACE_MODE_RGMII means that we are not introducing
1090 * any delay neither on transmission nor reception, so the
1091 * BCM53125 must also be configured accordingly to account for
1092 * the lack of delay and introduce
1094 * The BCM53125 switch has its RX clock and TX clock control
1095 * swapped, hence the reason why we modify the TX clock path in
1098 if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)
1099 rgmii_ctrl |= RGMII_CTRL_DLL_TXC;
1100 if (phydev->interface == PHY_INTERFACE_MODE_RGMII)
1101 rgmii_ctrl |= RGMII_CTRL_DLL_TXC | RGMII_CTRL_DLL_RXC;
1102 rgmii_ctrl |= RGMII_CTRL_TIMING_SEL;
1103 b53_write8(dev, B53_CTRL_PAGE, off, rgmii_ctrl);
1105 dev_info(ds->dev, "Configured port %d for %s\n", port,
1106 phy_modes(phydev->interface));
1109 /* configure MII port if necessary */
1111 b53_read8(dev, B53_CTRL_PAGE, B53_PORT_OVERRIDE_CTRL,
1114 /* reverse mii needs to be enabled */
1115 if (!(reg & PORT_OVERRIDE_RV_MII_25)) {
1116 b53_write8(dev, B53_CTRL_PAGE, B53_PORT_OVERRIDE_CTRL,
1117 reg | PORT_OVERRIDE_RV_MII_25);
1118 b53_read8(dev, B53_CTRL_PAGE, B53_PORT_OVERRIDE_CTRL,
1121 if (!(reg & PORT_OVERRIDE_RV_MII_25)) {
1123 "Failed to enable reverse MII mode\n");
1127 } else if (is5301x(dev)) {
1128 if (port != dev->cpu_port) {
1129 b53_force_port_config(dev, dev->cpu_port, 2000,
1130 DUPLEX_FULL, MLO_PAUSE_TXRX_MASK);
1131 b53_force_link(dev, dev->cpu_port, 1);
1135 /* Re-negotiate EEE if it was enabled already */
1136 p->eee_enabled = b53_eee_init(ds, port, phydev);
1139 void b53_port_event(struct dsa_switch *ds, int port)
1141 struct b53_device *dev = ds->priv;
1145 b53_read16(dev, B53_STAT_PAGE, B53_LINK_STAT, &sts);
1146 link = !!(sts & BIT(port));
1147 dsa_port_phylink_mac_change(ds, port, link);
1149 EXPORT_SYMBOL(b53_port_event);
1151 void b53_phylink_validate(struct dsa_switch *ds, int port,
1152 unsigned long *supported,
1153 struct phylink_link_state *state)
1155 struct b53_device *dev = ds->priv;
1156 __ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = { 0, };
1158 if (dev->ops->serdes_phylink_validate)
1159 dev->ops->serdes_phylink_validate(dev, port, mask, state);
1161 /* Allow all the expected bits */
1162 phylink_set(mask, Autoneg);
1163 phylink_set_port_modes(mask);
1164 phylink_set(mask, Pause);
1165 phylink_set(mask, Asym_Pause);
1167 /* With the exclusion of 5325/5365, MII, Reverse MII and 802.3z, we
1168 * support Gigabit, including Half duplex.
1170 if (state->interface != PHY_INTERFACE_MODE_MII &&
1171 state->interface != PHY_INTERFACE_MODE_REVMII &&
1172 !phy_interface_mode_is_8023z(state->interface) &&
1173 !(is5325(dev) || is5365(dev))) {
1174 phylink_set(mask, 1000baseT_Full);
1175 phylink_set(mask, 1000baseT_Half);
1178 if (!phy_interface_mode_is_8023z(state->interface)) {
1179 phylink_set(mask, 10baseT_Half);
1180 phylink_set(mask, 10baseT_Full);
1181 phylink_set(mask, 100baseT_Half);
1182 phylink_set(mask, 100baseT_Full);
1185 bitmap_and(supported, supported, mask,
1186 __ETHTOOL_LINK_MODE_MASK_NBITS);
1187 bitmap_and(state->advertising, state->advertising, mask,
1188 __ETHTOOL_LINK_MODE_MASK_NBITS);
1190 phylink_helper_basex_speed(state);
1192 EXPORT_SYMBOL(b53_phylink_validate);
1194 int b53_phylink_mac_link_state(struct dsa_switch *ds, int port,
1195 struct phylink_link_state *state)
1197 struct b53_device *dev = ds->priv;
1198 int ret = -EOPNOTSUPP;
1200 if ((phy_interface_mode_is_8023z(state->interface) ||
1201 state->interface == PHY_INTERFACE_MODE_SGMII) &&
1202 dev->ops->serdes_link_state)
1203 ret = dev->ops->serdes_link_state(dev, port, state);
1207 EXPORT_SYMBOL(b53_phylink_mac_link_state);
1209 void b53_phylink_mac_config(struct dsa_switch *ds, int port,
1211 const struct phylink_link_state *state)
1213 struct b53_device *dev = ds->priv;
1215 if (mode == MLO_AN_PHY)
1218 if (mode == MLO_AN_FIXED) {
1219 b53_force_port_config(dev, port, state->speed,
1220 state->duplex, state->pause);
1224 if ((phy_interface_mode_is_8023z(state->interface) ||
1225 state->interface == PHY_INTERFACE_MODE_SGMII) &&
1226 dev->ops->serdes_config)
1227 dev->ops->serdes_config(dev, port, mode, state);
1229 EXPORT_SYMBOL(b53_phylink_mac_config);
1231 void b53_phylink_mac_an_restart(struct dsa_switch *ds, int port)
1233 struct b53_device *dev = ds->priv;
1235 if (dev->ops->serdes_an_restart)
1236 dev->ops->serdes_an_restart(dev, port);
1238 EXPORT_SYMBOL(b53_phylink_mac_an_restart);
1240 void b53_phylink_mac_link_down(struct dsa_switch *ds, int port,
1242 phy_interface_t interface)
1244 struct b53_device *dev = ds->priv;
1246 if (mode == MLO_AN_PHY)
1249 if (mode == MLO_AN_FIXED) {
1250 b53_force_link(dev, port, false);
1254 if (phy_interface_mode_is_8023z(interface) &&
1255 dev->ops->serdes_link_set)
1256 dev->ops->serdes_link_set(dev, port, mode, interface, false);
1258 EXPORT_SYMBOL(b53_phylink_mac_link_down);
1260 void b53_phylink_mac_link_up(struct dsa_switch *ds, int port,
1262 phy_interface_t interface,
1263 struct phy_device *phydev)
1265 struct b53_device *dev = ds->priv;
1267 if (mode == MLO_AN_PHY)
1270 if (mode == MLO_AN_FIXED) {
1271 b53_force_link(dev, port, true);
1275 if (phy_interface_mode_is_8023z(interface) &&
1276 dev->ops->serdes_link_set)
1277 dev->ops->serdes_link_set(dev, port, mode, interface, true);
1279 EXPORT_SYMBOL(b53_phylink_mac_link_up);
1281 int b53_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering)
1283 struct b53_device *dev = ds->priv;
1286 b53_read16(dev, B53_VLAN_PAGE, B53_VLAN_PORT_DEF_TAG(port), &pvid);
1288 if (!vlan_filtering) {
1289 /* Filtering is currently enabled, use the default PVID since
1290 * the bridge does not expect tagging anymore
1292 dev->ports[port].pvid = pvid;
1293 new_pvid = b53_default_pvid(dev);
1295 /* Filtering is currently disabled, restore the previous PVID */
1296 new_pvid = dev->ports[port].pvid;
1299 if (pvid != new_pvid)
1300 b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_PORT_DEF_TAG(port),
1303 b53_enable_vlan(dev, dev->vlan_enabled, vlan_filtering);
1307 EXPORT_SYMBOL(b53_vlan_filtering);
1309 int b53_vlan_prepare(struct dsa_switch *ds, int port,
1310 const struct switchdev_obj_port_vlan *vlan)
1312 struct b53_device *dev = ds->priv;
1314 if ((is5325(dev) || is5365(dev)) && vlan->vid_begin == 0)
1317 if (vlan->vid_end > dev->num_vlans)
1320 b53_enable_vlan(dev, true, ds->vlan_filtering);
1324 EXPORT_SYMBOL(b53_vlan_prepare);
1326 void b53_vlan_add(struct dsa_switch *ds, int port,
1327 const struct switchdev_obj_port_vlan *vlan)
1329 struct b53_device *dev = ds->priv;
1330 bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
1331 bool pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
1332 struct b53_vlan *vl;
1335 for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) {
1336 vl = &dev->vlans[vid];
1338 b53_get_vlan_entry(dev, vid, vl);
1340 vl->members |= BIT(port);
1341 if (untagged && !dsa_is_cpu_port(ds, port))
1342 vl->untag |= BIT(port);
1344 vl->untag &= ~BIT(port);
1346 b53_set_vlan_entry(dev, vid, vl);
1347 b53_fast_age_vlan(dev, vid);
1350 if (pvid && !dsa_is_cpu_port(ds, port)) {
1351 b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_PORT_DEF_TAG(port),
1353 b53_fast_age_vlan(dev, vid);
1356 EXPORT_SYMBOL(b53_vlan_add);
1358 int b53_vlan_del(struct dsa_switch *ds, int port,
1359 const struct switchdev_obj_port_vlan *vlan)
1361 struct b53_device *dev = ds->priv;
1362 bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
1363 struct b53_vlan *vl;
1367 b53_read16(dev, B53_VLAN_PAGE, B53_VLAN_PORT_DEF_TAG(port), &pvid);
1369 for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) {
1370 vl = &dev->vlans[vid];
1372 b53_get_vlan_entry(dev, vid, vl);
1374 vl->members &= ~BIT(port);
1377 pvid = b53_default_pvid(dev);
1379 if (untagged && !dsa_is_cpu_port(ds, port))
1380 vl->untag &= ~(BIT(port));
1382 b53_set_vlan_entry(dev, vid, vl);
1383 b53_fast_age_vlan(dev, vid);
1386 b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_PORT_DEF_TAG(port), pvid);
1387 b53_fast_age_vlan(dev, pvid);
1391 EXPORT_SYMBOL(b53_vlan_del);
1393 /* Address Resolution Logic routines */
1394 static int b53_arl_op_wait(struct b53_device *dev)
1396 unsigned int timeout = 10;
1400 b53_read8(dev, B53_ARLIO_PAGE, B53_ARLTBL_RW_CTRL, ®);
1401 if (!(reg & ARLTBL_START_DONE))
1404 usleep_range(1000, 2000);
1405 } while (timeout--);
1407 dev_warn(dev->dev, "timeout waiting for ARL to finish: 0x%02x\n", reg);
1412 static int b53_arl_rw_op(struct b53_device *dev, unsigned int op)
1419 b53_read8(dev, B53_ARLIO_PAGE, B53_ARLTBL_RW_CTRL, ®);
1420 reg |= ARLTBL_START_DONE;
1425 b53_write8(dev, B53_ARLIO_PAGE, B53_ARLTBL_RW_CTRL, reg);
1427 return b53_arl_op_wait(dev);
1430 static int b53_arl_read(struct b53_device *dev, u64 mac,
1431 u16 vid, struct b53_arl_entry *ent, u8 *idx,
1437 ret = b53_arl_op_wait(dev);
1442 for (i = 0; i < dev->num_arl_entries; i++) {
1446 b53_read64(dev, B53_ARLIO_PAGE,
1447 B53_ARLTBL_MAC_VID_ENTRY(i), &mac_vid);
1448 b53_read32(dev, B53_ARLIO_PAGE,
1449 B53_ARLTBL_DATA_ENTRY(i), &fwd_entry);
1450 b53_arl_to_entry(ent, mac_vid, fwd_entry);
1452 if (!(fwd_entry & ARLTBL_VALID))
1454 if ((mac_vid & ARLTBL_MAC_MASK) != mac)
1462 static int b53_arl_op(struct b53_device *dev, int op, int port,
1463 const unsigned char *addr, u16 vid, bool is_valid)
1465 struct b53_arl_entry ent;
1467 u64 mac, mac_vid = 0;
1471 /* Convert the array into a 64-bit MAC */
1472 mac = ether_addr_to_u64(addr);
1474 /* Perform a read for the given MAC and VID */
1475 b53_write48(dev, B53_ARLIO_PAGE, B53_MAC_ADDR_IDX, mac);
1476 b53_write16(dev, B53_ARLIO_PAGE, B53_VLAN_ID_IDX, vid);
1478 /* Issue a read operation for this MAC */
1479 ret = b53_arl_rw_op(dev, 1);
1483 ret = b53_arl_read(dev, mac, vid, &ent, &idx, is_valid);
1484 /* If this is a read, just finish now */
1488 /* We could not find a matching MAC, so reset to a new entry */
1494 memset(&ent, 0, sizeof(ent));
1496 ent.is_valid = is_valid;
1498 ent.is_static = true;
1499 memcpy(ent.mac, addr, ETH_ALEN);
1500 b53_arl_from_entry(&mac_vid, &fwd_entry, &ent);
1502 b53_write64(dev, B53_ARLIO_PAGE,
1503 B53_ARLTBL_MAC_VID_ENTRY(idx), mac_vid);
1504 b53_write32(dev, B53_ARLIO_PAGE,
1505 B53_ARLTBL_DATA_ENTRY(idx), fwd_entry);
1507 return b53_arl_rw_op(dev, 0);
1510 int b53_fdb_add(struct dsa_switch *ds, int port,
1511 const unsigned char *addr, u16 vid)
1513 struct b53_device *priv = ds->priv;
1515 /* 5325 and 5365 require some more massaging, but could
1516 * be supported eventually
1518 if (is5325(priv) || is5365(priv))
1521 return b53_arl_op(priv, 0, port, addr, vid, true);
1523 EXPORT_SYMBOL(b53_fdb_add);
1525 int b53_fdb_del(struct dsa_switch *ds, int port,
1526 const unsigned char *addr, u16 vid)
1528 struct b53_device *priv = ds->priv;
1530 return b53_arl_op(priv, 0, port, addr, vid, false);
1532 EXPORT_SYMBOL(b53_fdb_del);
1534 static int b53_arl_search_wait(struct b53_device *dev)
1536 unsigned int timeout = 1000;
1540 b53_read8(dev, B53_ARLIO_PAGE, B53_ARL_SRCH_CTL, ®);
1541 if (!(reg & ARL_SRCH_STDN))
1544 if (reg & ARL_SRCH_VLID)
1547 usleep_range(1000, 2000);
1548 } while (timeout--);
1553 static void b53_arl_search_rd(struct b53_device *dev, u8 idx,
1554 struct b53_arl_entry *ent)
1559 b53_read64(dev, B53_ARLIO_PAGE,
1560 B53_ARL_SRCH_RSTL_MACVID(idx), &mac_vid);
1561 b53_read32(dev, B53_ARLIO_PAGE,
1562 B53_ARL_SRCH_RSTL(idx), &fwd_entry);
1563 b53_arl_to_entry(ent, mac_vid, fwd_entry);
1566 static int b53_fdb_copy(int port, const struct b53_arl_entry *ent,
1567 dsa_fdb_dump_cb_t *cb, void *data)
1572 if (port != ent->port)
1575 return cb(ent->mac, ent->vid, ent->is_static, data);
1578 int b53_fdb_dump(struct dsa_switch *ds, int port,
1579 dsa_fdb_dump_cb_t *cb, void *data)
1581 struct b53_device *priv = ds->priv;
1582 struct b53_arl_entry results[2];
1583 unsigned int count = 0;
1587 /* Start search operation */
1588 reg = ARL_SRCH_STDN;
1589 b53_write8(priv, B53_ARLIO_PAGE, B53_ARL_SRCH_CTL, reg);
1592 ret = b53_arl_search_wait(priv);
1596 b53_arl_search_rd(priv, 0, &results[0]);
1597 ret = b53_fdb_copy(port, &results[0], cb, data);
1601 if (priv->num_arl_entries > 2) {
1602 b53_arl_search_rd(priv, 1, &results[1]);
1603 ret = b53_fdb_copy(port, &results[1], cb, data);
1607 if (!results[0].is_valid && !results[1].is_valid)
1611 } while (count++ < 1024);
1615 EXPORT_SYMBOL(b53_fdb_dump);
1617 int b53_br_join(struct dsa_switch *ds, int port, struct net_device *br)
1619 struct b53_device *dev = ds->priv;
1620 s8 cpu_port = ds->ports[port].cpu_dp->index;
1624 /* Make this port leave the all VLANs join since we will have proper
1625 * VLAN entries from now on
1628 b53_read16(dev, B53_VLAN_PAGE, B53_JOIN_ALL_VLAN_EN, ®);
1630 if ((reg & BIT(cpu_port)) == BIT(cpu_port))
1631 reg &= ~BIT(cpu_port);
1632 b53_write16(dev, B53_VLAN_PAGE, B53_JOIN_ALL_VLAN_EN, reg);
1635 b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), &pvlan);
1637 b53_for_each_port(dev, i) {
1638 if (dsa_to_port(ds, i)->bridge_dev != br)
1641 /* Add this local port to the remote port VLAN control
1642 * membership and update the remote port bitmask
1644 b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), ®);
1646 b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), reg);
1647 dev->ports[i].vlan_ctl_mask = reg;
1652 /* Configure the local port VLAN control membership to include
1653 * remote ports and update the local port bitmask
1655 b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), pvlan);
1656 dev->ports[port].vlan_ctl_mask = pvlan;
1660 EXPORT_SYMBOL(b53_br_join);
1662 void b53_br_leave(struct dsa_switch *ds, int port, struct net_device *br)
1664 struct b53_device *dev = ds->priv;
1665 struct b53_vlan *vl = &dev->vlans[0];
1666 s8 cpu_port = ds->ports[port].cpu_dp->index;
1668 u16 pvlan, reg, pvid;
1670 b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), &pvlan);
1672 b53_for_each_port(dev, i) {
1673 /* Don't touch the remaining ports */
1674 if (dsa_to_port(ds, i)->bridge_dev != br)
1677 b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), ®);
1679 b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), reg);
1680 dev->ports[port].vlan_ctl_mask = reg;
1682 /* Prevent self removal to preserve isolation */
1687 b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), pvlan);
1688 dev->ports[port].vlan_ctl_mask = pvlan;
1690 pvid = b53_default_pvid(dev);
1692 /* Make this port join all VLANs without VLAN entries */
1694 b53_read16(dev, B53_VLAN_PAGE, B53_JOIN_ALL_VLAN_EN, ®);
1696 if (!(reg & BIT(cpu_port)))
1697 reg |= BIT(cpu_port);
1698 b53_write16(dev, B53_VLAN_PAGE, B53_JOIN_ALL_VLAN_EN, reg);
1700 b53_get_vlan_entry(dev, pvid, vl);
1701 vl->members |= BIT(port) | BIT(cpu_port);
1702 vl->untag |= BIT(port) | BIT(cpu_port);
1703 b53_set_vlan_entry(dev, pvid, vl);
1706 EXPORT_SYMBOL(b53_br_leave);
1708 void b53_br_set_stp_state(struct dsa_switch *ds, int port, u8 state)
1710 struct b53_device *dev = ds->priv;
1715 case BR_STATE_DISABLED:
1716 hw_state = PORT_CTRL_DIS_STATE;
1718 case BR_STATE_LISTENING:
1719 hw_state = PORT_CTRL_LISTEN_STATE;
1721 case BR_STATE_LEARNING:
1722 hw_state = PORT_CTRL_LEARN_STATE;
1724 case BR_STATE_FORWARDING:
1725 hw_state = PORT_CTRL_FWD_STATE;
1727 case BR_STATE_BLOCKING:
1728 hw_state = PORT_CTRL_BLOCK_STATE;
1731 dev_err(ds->dev, "invalid STP state: %d\n", state);
1735 b53_read8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), ®);
1736 reg &= ~PORT_CTRL_STP_STATE_MASK;
1738 b53_write8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), reg);
1740 EXPORT_SYMBOL(b53_br_set_stp_state);
1742 void b53_br_fast_age(struct dsa_switch *ds, int port)
1744 struct b53_device *dev = ds->priv;
1746 if (b53_fast_age_port(dev, port))
1747 dev_err(ds->dev, "fast ageing failed\n");
1749 EXPORT_SYMBOL(b53_br_fast_age);
1751 static bool b53_possible_cpu_port(struct dsa_switch *ds, int port)
1753 /* Broadcom switches will accept enabling Broadcom tags on the
1754 * following ports: 5, 7 and 8, any other port is not supported
1757 case B53_CPU_PORT_25:
1766 static bool b53_can_enable_brcm_tags(struct dsa_switch *ds, int port)
1768 bool ret = b53_possible_cpu_port(ds, port);
1771 dev_warn(ds->dev, "Port %d is not Broadcom tag capable\n",
1776 enum dsa_tag_protocol b53_get_tag_protocol(struct dsa_switch *ds, int port)
1778 struct b53_device *dev = ds->priv;
1780 /* Older models (5325, 5365) support a different tag format that we do
1781 * not support in net/dsa/tag_brcm.c yet. 539x and 531x5 require managed
1782 * mode to be turned on which means we need to specifically manage ARL
1783 * misses on multicast addresses (TBD).
1785 if (is5325(dev) || is5365(dev) || is539x(dev) || is531x5(dev) ||
1786 !b53_can_enable_brcm_tags(ds, port))
1787 return DSA_TAG_PROTO_NONE;
1789 /* Broadcom BCM58xx chips have a flow accelerator on Port 8
1790 * which requires us to use the prepended Broadcom tag type
1792 if (dev->chip_id == BCM58XX_DEVICE_ID && port == B53_CPU_PORT)
1793 return DSA_TAG_PROTO_BRCM_PREPEND;
1795 return DSA_TAG_PROTO_BRCM;
1797 EXPORT_SYMBOL(b53_get_tag_protocol);
1799 int b53_mirror_add(struct dsa_switch *ds, int port,
1800 struct dsa_mall_mirror_tc_entry *mirror, bool ingress)
1802 struct b53_device *dev = ds->priv;
1806 loc = B53_IG_MIR_CTL;
1808 loc = B53_EG_MIR_CTL;
1810 b53_read16(dev, B53_MGMT_PAGE, loc, ®);
1812 b53_write16(dev, B53_MGMT_PAGE, loc, reg);
1814 b53_read16(dev, B53_MGMT_PAGE, B53_MIR_CAP_CTL, ®);
1815 reg &= ~CAP_PORT_MASK;
1816 reg |= mirror->to_local_port;
1818 b53_write16(dev, B53_MGMT_PAGE, B53_MIR_CAP_CTL, reg);
1822 EXPORT_SYMBOL(b53_mirror_add);
1824 void b53_mirror_del(struct dsa_switch *ds, int port,
1825 struct dsa_mall_mirror_tc_entry *mirror)
1827 struct b53_device *dev = ds->priv;
1828 bool loc_disable = false, other_loc_disable = false;
1831 if (mirror->ingress)
1832 loc = B53_IG_MIR_CTL;
1834 loc = B53_EG_MIR_CTL;
1836 /* Update the desired ingress/egress register */
1837 b53_read16(dev, B53_MGMT_PAGE, loc, ®);
1839 if (!(reg & MIRROR_MASK))
1841 b53_write16(dev, B53_MGMT_PAGE, loc, reg);
1843 /* Now look at the other one to know if we can disable mirroring
1846 if (mirror->ingress)
1847 b53_read16(dev, B53_MGMT_PAGE, B53_EG_MIR_CTL, ®);
1849 b53_read16(dev, B53_MGMT_PAGE, B53_IG_MIR_CTL, ®);
1850 if (!(reg & MIRROR_MASK))
1851 other_loc_disable = true;
1853 b53_read16(dev, B53_MGMT_PAGE, B53_MIR_CAP_CTL, ®);
1854 /* Both no longer have ports, let's disable mirroring */
1855 if (loc_disable && other_loc_disable) {
1857 reg &= ~mirror->to_local_port;
1859 b53_write16(dev, B53_MGMT_PAGE, B53_MIR_CAP_CTL, reg);
1861 EXPORT_SYMBOL(b53_mirror_del);
1863 void b53_eee_enable_set(struct dsa_switch *ds, int port, bool enable)
1865 struct b53_device *dev = ds->priv;
1868 b53_read16(dev, B53_EEE_PAGE, B53_EEE_EN_CTRL, ®);
1873 b53_write16(dev, B53_EEE_PAGE, B53_EEE_EN_CTRL, reg);
1875 EXPORT_SYMBOL(b53_eee_enable_set);
1878 /* Returns 0 if EEE was not enabled, or 1 otherwise
1880 int b53_eee_init(struct dsa_switch *ds, int port, struct phy_device *phy)
1884 ret = phy_init_eee(phy, 0);
1888 b53_eee_enable_set(ds, port, true);
1892 EXPORT_SYMBOL(b53_eee_init);
1894 int b53_get_mac_eee(struct dsa_switch *ds, int port, struct ethtool_eee *e)
1896 struct b53_device *dev = ds->priv;
1897 struct ethtool_eee *p = &dev->ports[port].eee;
1900 if (is5325(dev) || is5365(dev))
1903 b53_read16(dev, B53_EEE_PAGE, B53_EEE_LPI_INDICATE, ®);
1904 e->eee_enabled = p->eee_enabled;
1905 e->eee_active = !!(reg & BIT(port));
1909 EXPORT_SYMBOL(b53_get_mac_eee);
1911 int b53_set_mac_eee(struct dsa_switch *ds, int port, struct ethtool_eee *e)
1913 struct b53_device *dev = ds->priv;
1914 struct ethtool_eee *p = &dev->ports[port].eee;
1916 if (is5325(dev) || is5365(dev))
1919 p->eee_enabled = e->eee_enabled;
1920 b53_eee_enable_set(ds, port, e->eee_enabled);
1924 EXPORT_SYMBOL(b53_set_mac_eee);
1926 static const struct dsa_switch_ops b53_switch_ops = {
1927 .get_tag_protocol = b53_get_tag_protocol,
1929 .get_strings = b53_get_strings,
1930 .get_ethtool_stats = b53_get_ethtool_stats,
1931 .get_sset_count = b53_get_sset_count,
1932 .get_ethtool_phy_stats = b53_get_ethtool_phy_stats,
1933 .phy_read = b53_phy_read16,
1934 .phy_write = b53_phy_write16,
1935 .adjust_link = b53_adjust_link,
1936 .phylink_validate = b53_phylink_validate,
1937 .phylink_mac_link_state = b53_phylink_mac_link_state,
1938 .phylink_mac_config = b53_phylink_mac_config,
1939 .phylink_mac_an_restart = b53_phylink_mac_an_restart,
1940 .phylink_mac_link_down = b53_phylink_mac_link_down,
1941 .phylink_mac_link_up = b53_phylink_mac_link_up,
1942 .port_enable = b53_enable_port,
1943 .port_disable = b53_disable_port,
1944 .get_mac_eee = b53_get_mac_eee,
1945 .set_mac_eee = b53_set_mac_eee,
1946 .port_bridge_join = b53_br_join,
1947 .port_bridge_leave = b53_br_leave,
1948 .port_stp_state_set = b53_br_set_stp_state,
1949 .port_fast_age = b53_br_fast_age,
1950 .port_vlan_filtering = b53_vlan_filtering,
1951 .port_vlan_prepare = b53_vlan_prepare,
1952 .port_vlan_add = b53_vlan_add,
1953 .port_vlan_del = b53_vlan_del,
1954 .port_fdb_dump = b53_fdb_dump,
1955 .port_fdb_add = b53_fdb_add,
1956 .port_fdb_del = b53_fdb_del,
1957 .port_mirror_add = b53_mirror_add,
1958 .port_mirror_del = b53_mirror_del,
1961 struct b53_chip_data {
1963 const char *dev_name;
1974 #define B53_VTA_REGS \
1975 { B53_VT_ACCESS, B53_VT_INDEX, B53_VT_ENTRY }
1976 #define B53_VTA_REGS_9798 \
1977 { B53_VT_ACCESS_9798, B53_VT_INDEX_9798, B53_VT_ENTRY_9798 }
1978 #define B53_VTA_REGS_63XX \
1979 { B53_VT_ACCESS_63XX, B53_VT_INDEX_63XX, B53_VT_ENTRY_63XX }
1981 static const struct b53_chip_data b53_switch_chips[] = {
1983 .chip_id = BCM5325_DEVICE_ID,
1984 .dev_name = "BCM5325",
1986 .enabled_ports = 0x1f,
1988 .cpu_port = B53_CPU_PORT_25,
1989 .duplex_reg = B53_DUPLEX_STAT_FE,
1992 .chip_id = BCM5365_DEVICE_ID,
1993 .dev_name = "BCM5365",
1995 .enabled_ports = 0x1f,
1997 .cpu_port = B53_CPU_PORT_25,
1998 .duplex_reg = B53_DUPLEX_STAT_FE,
2001 .chip_id = BCM5389_DEVICE_ID,
2002 .dev_name = "BCM5389",
2004 .enabled_ports = 0x1f,
2006 .cpu_port = B53_CPU_PORT,
2007 .vta_regs = B53_VTA_REGS,
2008 .duplex_reg = B53_DUPLEX_STAT_GE,
2009 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2010 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2013 .chip_id = BCM5395_DEVICE_ID,
2014 .dev_name = "BCM5395",
2016 .enabled_ports = 0x1f,
2018 .cpu_port = B53_CPU_PORT,
2019 .vta_regs = B53_VTA_REGS,
2020 .duplex_reg = B53_DUPLEX_STAT_GE,
2021 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2022 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2025 .chip_id = BCM5397_DEVICE_ID,
2026 .dev_name = "BCM5397",
2028 .enabled_ports = 0x1f,
2030 .cpu_port = B53_CPU_PORT,
2031 .vta_regs = B53_VTA_REGS_9798,
2032 .duplex_reg = B53_DUPLEX_STAT_GE,
2033 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2034 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2037 .chip_id = BCM5398_DEVICE_ID,
2038 .dev_name = "BCM5398",
2040 .enabled_ports = 0x7f,
2042 .cpu_port = B53_CPU_PORT,
2043 .vta_regs = B53_VTA_REGS_9798,
2044 .duplex_reg = B53_DUPLEX_STAT_GE,
2045 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2046 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2049 .chip_id = BCM53115_DEVICE_ID,
2050 .dev_name = "BCM53115",
2052 .enabled_ports = 0x1f,
2054 .vta_regs = B53_VTA_REGS,
2055 .cpu_port = B53_CPU_PORT,
2056 .duplex_reg = B53_DUPLEX_STAT_GE,
2057 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2058 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2061 .chip_id = BCM53125_DEVICE_ID,
2062 .dev_name = "BCM53125",
2064 .enabled_ports = 0xff,
2066 .cpu_port = B53_CPU_PORT,
2067 .vta_regs = B53_VTA_REGS,
2068 .duplex_reg = B53_DUPLEX_STAT_GE,
2069 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2070 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2073 .chip_id = BCM53128_DEVICE_ID,
2074 .dev_name = "BCM53128",
2076 .enabled_ports = 0x1ff,
2078 .cpu_port = B53_CPU_PORT,
2079 .vta_regs = B53_VTA_REGS,
2080 .duplex_reg = B53_DUPLEX_STAT_GE,
2081 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2082 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2085 .chip_id = BCM63XX_DEVICE_ID,
2086 .dev_name = "BCM63xx",
2088 .enabled_ports = 0, /* pdata must provide them */
2090 .cpu_port = B53_CPU_PORT,
2091 .vta_regs = B53_VTA_REGS_63XX,
2092 .duplex_reg = B53_DUPLEX_STAT_63XX,
2093 .jumbo_pm_reg = B53_JUMBO_PORT_MASK_63XX,
2094 .jumbo_size_reg = B53_JUMBO_MAX_SIZE_63XX,
2097 .chip_id = BCM53010_DEVICE_ID,
2098 .dev_name = "BCM53010",
2100 .enabled_ports = 0x1f,
2102 .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */
2103 .vta_regs = B53_VTA_REGS,
2104 .duplex_reg = B53_DUPLEX_STAT_GE,
2105 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2106 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2109 .chip_id = BCM53011_DEVICE_ID,
2110 .dev_name = "BCM53011",
2112 .enabled_ports = 0x1bf,
2114 .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */
2115 .vta_regs = B53_VTA_REGS,
2116 .duplex_reg = B53_DUPLEX_STAT_GE,
2117 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2118 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2121 .chip_id = BCM53012_DEVICE_ID,
2122 .dev_name = "BCM53012",
2124 .enabled_ports = 0x1bf,
2126 .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */
2127 .vta_regs = B53_VTA_REGS,
2128 .duplex_reg = B53_DUPLEX_STAT_GE,
2129 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2130 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2133 .chip_id = BCM53018_DEVICE_ID,
2134 .dev_name = "BCM53018",
2136 .enabled_ports = 0x1f,
2138 .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */
2139 .vta_regs = B53_VTA_REGS,
2140 .duplex_reg = B53_DUPLEX_STAT_GE,
2141 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2142 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2145 .chip_id = BCM53019_DEVICE_ID,
2146 .dev_name = "BCM53019",
2148 .enabled_ports = 0x1f,
2150 .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */
2151 .vta_regs = B53_VTA_REGS,
2152 .duplex_reg = B53_DUPLEX_STAT_GE,
2153 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2154 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2157 .chip_id = BCM58XX_DEVICE_ID,
2158 .dev_name = "BCM585xx/586xx/88312",
2160 .enabled_ports = 0x1ff,
2162 .cpu_port = B53_CPU_PORT,
2163 .vta_regs = B53_VTA_REGS,
2164 .duplex_reg = B53_DUPLEX_STAT_GE,
2165 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2166 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2169 .chip_id = BCM583XX_DEVICE_ID,
2170 .dev_name = "BCM583xx/11360",
2172 .enabled_ports = 0x103,
2174 .cpu_port = B53_CPU_PORT,
2175 .vta_regs = B53_VTA_REGS,
2176 .duplex_reg = B53_DUPLEX_STAT_GE,
2177 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2178 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2181 .chip_id = BCM7445_DEVICE_ID,
2182 .dev_name = "BCM7445",
2184 .enabled_ports = 0x1ff,
2186 .cpu_port = B53_CPU_PORT,
2187 .vta_regs = B53_VTA_REGS,
2188 .duplex_reg = B53_DUPLEX_STAT_GE,
2189 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2190 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2193 .chip_id = BCM7278_DEVICE_ID,
2194 .dev_name = "BCM7278",
2196 .enabled_ports = 0x1ff,
2198 .cpu_port = B53_CPU_PORT,
2199 .vta_regs = B53_VTA_REGS,
2200 .duplex_reg = B53_DUPLEX_STAT_GE,
2201 .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
2202 .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
2206 static int b53_switch_init(struct b53_device *dev)
2211 for (i = 0; i < ARRAY_SIZE(b53_switch_chips); i++) {
2212 const struct b53_chip_data *chip = &b53_switch_chips[i];
2214 if (chip->chip_id == dev->chip_id) {
2215 if (!dev->enabled_ports)
2216 dev->enabled_ports = chip->enabled_ports;
2217 dev->name = chip->dev_name;
2218 dev->duplex_reg = chip->duplex_reg;
2219 dev->vta_regs[0] = chip->vta_regs[0];
2220 dev->vta_regs[1] = chip->vta_regs[1];
2221 dev->vta_regs[2] = chip->vta_regs[2];
2222 dev->jumbo_pm_reg = chip->jumbo_pm_reg;
2223 dev->cpu_port = chip->cpu_port;
2224 dev->num_vlans = chip->vlans;
2225 dev->num_arl_entries = chip->arl_entries;
2230 /* check which BCM5325x version we have */
2234 b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_25, &vc4);
2236 /* check reserved bits */
2242 /* BCM5325F - do not use port 4 */
2243 dev->enabled_ports &= ~BIT(4);
2246 /* On the BCM47XX SoCs this is the supported internal switch.*/
2247 #ifndef CONFIG_BCM47XX
2254 } else if (dev->chip_id == BCM53115_DEVICE_ID) {
2257 b53_read48(dev, B53_STAT_PAGE, B53_STRAP_VALUE, &strap_value);
2258 /* use second IMP port if GMII is enabled */
2259 if (strap_value & SV_GMII_CTRL_115)
2263 /* cpu port is always last */
2264 dev->num_ports = dev->cpu_port + 1;
2265 dev->enabled_ports |= BIT(dev->cpu_port);
2267 /* Include non standard CPU port built-in PHYs to be probed */
2268 if (is539x(dev) || is531x5(dev)) {
2269 for (i = 0; i < dev->num_ports; i++) {
2270 if (!(dev->ds->phys_mii_mask & BIT(i)) &&
2271 !b53_possible_cpu_port(dev->ds, i))
2272 dev->ds->phys_mii_mask |= BIT(i);
2276 dev->ports = devm_kcalloc(dev->dev,
2277 dev->num_ports, sizeof(struct b53_port),
2282 dev->vlans = devm_kcalloc(dev->dev,
2283 dev->num_vlans, sizeof(struct b53_vlan),
2288 dev->reset_gpio = b53_switch_get_reset_gpio(dev);
2289 if (dev->reset_gpio >= 0) {
2290 ret = devm_gpio_request_one(dev->dev, dev->reset_gpio,
2291 GPIOF_OUT_INIT_HIGH, "robo_reset");
2299 struct b53_device *b53_switch_alloc(struct device *base,
2300 const struct b53_io_ops *ops,
2303 struct dsa_switch *ds;
2304 struct b53_device *dev;
2306 ds = dsa_switch_alloc(base, DSA_MAX_PORTS);
2310 dev = devm_kzalloc(base, sizeof(*dev), GFP_KERNEL);
2320 ds->ops = &b53_switch_ops;
2321 mutex_init(&dev->reg_mutex);
2322 mutex_init(&dev->stats_mutex);
2326 EXPORT_SYMBOL(b53_switch_alloc);
2328 int b53_switch_detect(struct b53_device *dev)
2335 ret = b53_read8(dev, B53_MGMT_PAGE, B53_DEVICE_ID, &id8);
2341 /* BCM5325 and BCM5365 do not have this register so reads
2342 * return 0. But the read operation did succeed, so assume this
2345 * Next check if we can write to the 5325's VTA register; for
2346 * 5365 it is read only.
2348 b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_25, 0xf);
2349 b53_read16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_25, &tmp);
2352 dev->chip_id = BCM5325_DEVICE_ID;
2354 dev->chip_id = BCM5365_DEVICE_ID;
2356 case BCM5389_DEVICE_ID:
2357 case BCM5395_DEVICE_ID:
2358 case BCM5397_DEVICE_ID:
2359 case BCM5398_DEVICE_ID:
2363 ret = b53_read32(dev, B53_MGMT_PAGE, B53_DEVICE_ID, &id32);
2368 case BCM53115_DEVICE_ID:
2369 case BCM53125_DEVICE_ID:
2370 case BCM53128_DEVICE_ID:
2371 case BCM53010_DEVICE_ID:
2372 case BCM53011_DEVICE_ID:
2373 case BCM53012_DEVICE_ID:
2374 case BCM53018_DEVICE_ID:
2375 case BCM53019_DEVICE_ID:
2376 dev->chip_id = id32;
2379 pr_err("unsupported switch detected (BCM53%02x/BCM%x)\n",
2385 if (dev->chip_id == BCM5325_DEVICE_ID)
2386 return b53_read8(dev, B53_STAT_PAGE, B53_REV_ID_25,
2389 return b53_read8(dev, B53_MGMT_PAGE, B53_REV_ID,
2392 EXPORT_SYMBOL(b53_switch_detect);
2394 int b53_switch_register(struct b53_device *dev)
2399 dev->chip_id = dev->pdata->chip_id;
2400 dev->enabled_ports = dev->pdata->enabled_ports;
2403 if (!dev->chip_id && b53_switch_detect(dev))
2406 ret = b53_switch_init(dev);
2410 pr_info("found switch: %s, rev %i\n", dev->name, dev->core_rev);
2412 return dsa_register_switch(dev->ds);
2414 EXPORT_SYMBOL(b53_switch_register);
2416 MODULE_AUTHOR("Jonas Gorski <jogo@openwrt.org>");
2417 MODULE_DESCRIPTION("B53 switch library");
2418 MODULE_LICENSE("Dual BSD/GPL");