Commit | Line | Data |
---|---|---|
1802d0be | 1 | // SPDX-License-Identifier: GPL-2.0-only |
b8f126a8 SW |
2 | /* |
3 | * Mediatek MT7530 DSA Switch driver | |
4 | * Copyright (C) 2017 Sean Wang <sean.wang@mediatek.com> | |
b8f126a8 SW |
5 | */ |
6 | #include <linux/etherdevice.h> | |
7 | #include <linux/if_bridge.h> | |
8 | #include <linux/iopoll.h> | |
9 | #include <linux/mdio.h> | |
10 | #include <linux/mfd/syscon.h> | |
11 | #include <linux/module.h> | |
12 | #include <linux/netdevice.h> | |
b8f126a8 SW |
13 | #include <linux/of_mdio.h> |
14 | #include <linux/of_net.h> | |
15 | #include <linux/of_platform.h> | |
ca366d6c | 16 | #include <linux/phylink.h> |
b8f126a8 SW |
17 | #include <linux/regmap.h> |
18 | #include <linux/regulator/consumer.h> | |
19 | #include <linux/reset.h> | |
eb976a55 | 20 | #include <linux/gpio/consumer.h> |
b8f126a8 | 21 | #include <net/dsa.h> |
b8f126a8 SW |
22 | |
23 | #include "mt7530.h" | |
24 | ||
25 | /* String, offset, and register size in bytes if different from 4 bytes */ | |
26 | static const struct mt7530_mib_desc mt7530_mib[] = { | |
27 | MIB_DESC(1, 0x00, "TxDrop"), | |
28 | MIB_DESC(1, 0x04, "TxCrcErr"), | |
29 | MIB_DESC(1, 0x08, "TxUnicast"), | |
30 | MIB_DESC(1, 0x0c, "TxMulticast"), | |
31 | MIB_DESC(1, 0x10, "TxBroadcast"), | |
32 | MIB_DESC(1, 0x14, "TxCollision"), | |
33 | MIB_DESC(1, 0x18, "TxSingleCollision"), | |
34 | MIB_DESC(1, 0x1c, "TxMultipleCollision"), | |
35 | MIB_DESC(1, 0x20, "TxDeferred"), | |
36 | MIB_DESC(1, 0x24, "TxLateCollision"), | |
37 | MIB_DESC(1, 0x28, "TxExcessiveCollistion"), | |
38 | MIB_DESC(1, 0x2c, "TxPause"), | |
39 | MIB_DESC(1, 0x30, "TxPktSz64"), | |
40 | MIB_DESC(1, 0x34, "TxPktSz65To127"), | |
41 | MIB_DESC(1, 0x38, "TxPktSz128To255"), | |
42 | MIB_DESC(1, 0x3c, "TxPktSz256To511"), | |
43 | MIB_DESC(1, 0x40, "TxPktSz512To1023"), | |
44 | MIB_DESC(1, 0x44, "Tx1024ToMax"), | |
45 | MIB_DESC(2, 0x48, "TxBytes"), | |
46 | MIB_DESC(1, 0x60, "RxDrop"), | |
47 | MIB_DESC(1, 0x64, "RxFiltering"), | |
48 | MIB_DESC(1, 0x6c, "RxMulticast"), | |
49 | MIB_DESC(1, 0x70, "RxBroadcast"), | |
50 | MIB_DESC(1, 0x74, "RxAlignErr"), | |
51 | MIB_DESC(1, 0x78, "RxCrcErr"), | |
52 | MIB_DESC(1, 0x7c, "RxUnderSizeErr"), | |
53 | MIB_DESC(1, 0x80, "RxFragErr"), | |
54 | MIB_DESC(1, 0x84, "RxOverSzErr"), | |
55 | MIB_DESC(1, 0x88, "RxJabberErr"), | |
56 | MIB_DESC(1, 0x8c, "RxPause"), | |
57 | MIB_DESC(1, 0x90, "RxPktSz64"), | |
58 | MIB_DESC(1, 0x94, "RxPktSz65To127"), | |
59 | MIB_DESC(1, 0x98, "RxPktSz128To255"), | |
60 | MIB_DESC(1, 0x9c, "RxPktSz256To511"), | |
61 | MIB_DESC(1, 0xa0, "RxPktSz512To1023"), | |
62 | MIB_DESC(1, 0xa4, "RxPktSz1024ToMax"), | |
63 | MIB_DESC(2, 0xa8, "RxBytes"), | |
64 | MIB_DESC(1, 0xb0, "RxCtrlDrop"), | |
65 | MIB_DESC(1, 0xb4, "RxIngressDrop"), | |
66 | MIB_DESC(1, 0xb8, "RxArlDrop"), | |
67 | }; | |
68 | ||
b8f126a8 SW |
69 | static int |
70 | core_read_mmd_indirect(struct mt7530_priv *priv, int prtad, int devad) | |
71 | { | |
72 | struct mii_bus *bus = priv->bus; | |
73 | int value, ret; | |
74 | ||
75 | /* Write the desired MMD Devad */ | |
76 | ret = bus->write(bus, 0, MII_MMD_CTRL, devad); | |
77 | if (ret < 0) | |
78 | goto err; | |
79 | ||
80 | /* Write the desired MMD register address */ | |
81 | ret = bus->write(bus, 0, MII_MMD_DATA, prtad); | |
82 | if (ret < 0) | |
83 | goto err; | |
84 | ||
85 | /* Select the Function : DATA with no post increment */ | |
86 | ret = bus->write(bus, 0, MII_MMD_CTRL, (devad | MII_MMD_CTRL_NOINCR)); | |
87 | if (ret < 0) | |
88 | goto err; | |
89 | ||
90 | /* Read the content of the MMD's selected register */ | |
91 | value = bus->read(bus, 0, MII_MMD_DATA); | |
92 | ||
93 | return value; | |
94 | err: | |
95 | dev_err(&bus->dev, "failed to read mmd register\n"); | |
96 | ||
97 | return ret; | |
98 | } | |
99 | ||
100 | static int | |
101 | core_write_mmd_indirect(struct mt7530_priv *priv, int prtad, | |
102 | int devad, u32 data) | |
103 | { | |
104 | struct mii_bus *bus = priv->bus; | |
105 | int ret; | |
106 | ||
107 | /* Write the desired MMD Devad */ | |
108 | ret = bus->write(bus, 0, MII_MMD_CTRL, devad); | |
109 | if (ret < 0) | |
110 | goto err; | |
111 | ||
112 | /* Write the desired MMD register address */ | |
113 | ret = bus->write(bus, 0, MII_MMD_DATA, prtad); | |
114 | if (ret < 0) | |
115 | goto err; | |
116 | ||
117 | /* Select the Function : DATA with no post increment */ | |
118 | ret = bus->write(bus, 0, MII_MMD_CTRL, (devad | MII_MMD_CTRL_NOINCR)); | |
119 | if (ret < 0) | |
120 | goto err; | |
121 | ||
122 | /* Write the data into MMD's selected register */ | |
123 | ret = bus->write(bus, 0, MII_MMD_DATA, data); | |
124 | err: | |
125 | if (ret < 0) | |
126 | dev_err(&bus->dev, | |
127 | "failed to write mmd register\n"); | |
128 | return ret; | |
129 | } | |
130 | ||
131 | static void | |
132 | core_write(struct mt7530_priv *priv, u32 reg, u32 val) | |
133 | { | |
134 | struct mii_bus *bus = priv->bus; | |
135 | ||
136 | mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED); | |
137 | ||
138 | core_write_mmd_indirect(priv, reg, MDIO_MMD_VEND2, val); | |
139 | ||
140 | mutex_unlock(&bus->mdio_lock); | |
141 | } | |
142 | ||
143 | static void | |
144 | core_rmw(struct mt7530_priv *priv, u32 reg, u32 mask, u32 set) | |
145 | { | |
146 | struct mii_bus *bus = priv->bus; | |
147 | u32 val; | |
148 | ||
149 | mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED); | |
150 | ||
151 | val = core_read_mmd_indirect(priv, reg, MDIO_MMD_VEND2); | |
152 | val &= ~mask; | |
153 | val |= set; | |
154 | core_write_mmd_indirect(priv, reg, MDIO_MMD_VEND2, val); | |
155 | ||
156 | mutex_unlock(&bus->mdio_lock); | |
157 | } | |
158 | ||
159 | static void | |
160 | core_set(struct mt7530_priv *priv, u32 reg, u32 val) | |
161 | { | |
162 | core_rmw(priv, reg, 0, val); | |
163 | } | |
164 | ||
165 | static void | |
166 | core_clear(struct mt7530_priv *priv, u32 reg, u32 val) | |
167 | { | |
168 | core_rmw(priv, reg, val, 0); | |
169 | } | |
170 | ||
171 | static int | |
172 | mt7530_mii_write(struct mt7530_priv *priv, u32 reg, u32 val) | |
173 | { | |
174 | struct mii_bus *bus = priv->bus; | |
175 | u16 page, r, lo, hi; | |
176 | int ret; | |
177 | ||
178 | page = (reg >> 6) & 0x3ff; | |
179 | r = (reg >> 2) & 0xf; | |
180 | lo = val & 0xffff; | |
181 | hi = val >> 16; | |
182 | ||
183 | /* MT7530 uses 31 as the pseudo port */ | |
184 | ret = bus->write(bus, 0x1f, 0x1f, page); | |
185 | if (ret < 0) | |
186 | goto err; | |
187 | ||
188 | ret = bus->write(bus, 0x1f, r, lo); | |
189 | if (ret < 0) | |
190 | goto err; | |
191 | ||
192 | ret = bus->write(bus, 0x1f, 0x10, hi); | |
193 | err: | |
194 | if (ret < 0) | |
195 | dev_err(&bus->dev, | |
196 | "failed to write mt7530 register\n"); | |
197 | return ret; | |
198 | } | |
199 | ||
200 | static u32 | |
201 | mt7530_mii_read(struct mt7530_priv *priv, u32 reg) | |
202 | { | |
203 | struct mii_bus *bus = priv->bus; | |
204 | u16 page, r, lo, hi; | |
205 | int ret; | |
206 | ||
207 | page = (reg >> 6) & 0x3ff; | |
208 | r = (reg >> 2) & 0xf; | |
209 | ||
210 | /* MT7530 uses 31 as the pseudo port */ | |
211 | ret = bus->write(bus, 0x1f, 0x1f, page); | |
212 | if (ret < 0) { | |
213 | dev_err(&bus->dev, | |
214 | "failed to read mt7530 register\n"); | |
215 | return ret; | |
216 | } | |
217 | ||
218 | lo = bus->read(bus, 0x1f, r); | |
219 | hi = bus->read(bus, 0x1f, 0x10); | |
220 | ||
221 | return (hi << 16) | (lo & 0xffff); | |
222 | } | |
223 | ||
224 | static void | |
225 | mt7530_write(struct mt7530_priv *priv, u32 reg, u32 val) | |
226 | { | |
227 | struct mii_bus *bus = priv->bus; | |
228 | ||
229 | mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED); | |
230 | ||
231 | mt7530_mii_write(priv, reg, val); | |
232 | ||
233 | mutex_unlock(&bus->mdio_lock); | |
234 | } | |
235 | ||
c288575f LC |
236 | static u32 |
237 | _mt7530_unlocked_read(struct mt7530_dummy_poll *p) | |
238 | { | |
239 | return mt7530_mii_read(p->priv, p->reg); | |
240 | } | |
241 | ||
b8f126a8 SW |
242 | static u32 |
243 | _mt7530_read(struct mt7530_dummy_poll *p) | |
244 | { | |
245 | struct mii_bus *bus = p->priv->bus; | |
246 | u32 val; | |
247 | ||
248 | mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED); | |
249 | ||
250 | val = mt7530_mii_read(p->priv, p->reg); | |
251 | ||
252 | mutex_unlock(&bus->mdio_lock); | |
253 | ||
254 | return val; | |
255 | } | |
256 | ||
257 | static u32 | |
258 | mt7530_read(struct mt7530_priv *priv, u32 reg) | |
259 | { | |
260 | struct mt7530_dummy_poll p; | |
261 | ||
262 | INIT_MT7530_DUMMY_POLL(&p, priv, reg); | |
263 | return _mt7530_read(&p); | |
264 | } | |
265 | ||
266 | static void | |
267 | mt7530_rmw(struct mt7530_priv *priv, u32 reg, | |
268 | u32 mask, u32 set) | |
269 | { | |
270 | struct mii_bus *bus = priv->bus; | |
271 | u32 val; | |
272 | ||
273 | mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED); | |
274 | ||
275 | val = mt7530_mii_read(priv, reg); | |
276 | val &= ~mask; | |
277 | val |= set; | |
278 | mt7530_mii_write(priv, reg, val); | |
279 | ||
280 | mutex_unlock(&bus->mdio_lock); | |
281 | } | |
282 | ||
283 | static void | |
284 | mt7530_set(struct mt7530_priv *priv, u32 reg, u32 val) | |
285 | { | |
286 | mt7530_rmw(priv, reg, 0, val); | |
287 | } | |
288 | ||
289 | static void | |
290 | mt7530_clear(struct mt7530_priv *priv, u32 reg, u32 val) | |
291 | { | |
292 | mt7530_rmw(priv, reg, val, 0); | |
293 | } | |
294 | ||
295 | static int | |
296 | mt7530_fdb_cmd(struct mt7530_priv *priv, enum mt7530_fdb_cmd cmd, u32 *rsp) | |
297 | { | |
298 | u32 val; | |
299 | int ret; | |
300 | struct mt7530_dummy_poll p; | |
301 | ||
302 | /* Set the command operating upon the MAC address entries */ | |
303 | val = ATC_BUSY | ATC_MAT(0) | cmd; | |
304 | mt7530_write(priv, MT7530_ATC, val); | |
305 | ||
306 | INIT_MT7530_DUMMY_POLL(&p, priv, MT7530_ATC); | |
307 | ret = readx_poll_timeout(_mt7530_read, &p, val, | |
308 | !(val & ATC_BUSY), 20, 20000); | |
309 | if (ret < 0) { | |
310 | dev_err(priv->dev, "reset timeout\n"); | |
311 | return ret; | |
312 | } | |
313 | ||
314 | /* Additional sanity for read command if the specified | |
315 | * entry is invalid | |
316 | */ | |
317 | val = mt7530_read(priv, MT7530_ATC); | |
318 | if ((cmd == MT7530_FDB_READ) && (val & ATC_INVALID)) | |
319 | return -EINVAL; | |
320 | ||
321 | if (rsp) | |
322 | *rsp = val; | |
323 | ||
324 | return 0; | |
325 | } | |
326 | ||
327 | static void | |
328 | mt7530_fdb_read(struct mt7530_priv *priv, struct mt7530_fdb *fdb) | |
329 | { | |
330 | u32 reg[3]; | |
331 | int i; | |
332 | ||
333 | /* Read from ARL table into an array */ | |
334 | for (i = 0; i < 3; i++) { | |
335 | reg[i] = mt7530_read(priv, MT7530_TSRA1 + (i * 4)); | |
336 | ||
337 | dev_dbg(priv->dev, "%s(%d) reg[%d]=0x%x\n", | |
338 | __func__, __LINE__, i, reg[i]); | |
339 | } | |
340 | ||
341 | fdb->vid = (reg[1] >> CVID) & CVID_MASK; | |
342 | fdb->aging = (reg[2] >> AGE_TIMER) & AGE_TIMER_MASK; | |
343 | fdb->port_mask = (reg[2] >> PORT_MAP) & PORT_MAP_MASK; | |
344 | fdb->mac[0] = (reg[0] >> MAC_BYTE_0) & MAC_BYTE_MASK; | |
345 | fdb->mac[1] = (reg[0] >> MAC_BYTE_1) & MAC_BYTE_MASK; | |
346 | fdb->mac[2] = (reg[0] >> MAC_BYTE_2) & MAC_BYTE_MASK; | |
347 | fdb->mac[3] = (reg[0] >> MAC_BYTE_3) & MAC_BYTE_MASK; | |
348 | fdb->mac[4] = (reg[1] >> MAC_BYTE_4) & MAC_BYTE_MASK; | |
349 | fdb->mac[5] = (reg[1] >> MAC_BYTE_5) & MAC_BYTE_MASK; | |
350 | fdb->noarp = ((reg[2] >> ENT_STATUS) & ENT_STATUS_MASK) == STATIC_ENT; | |
351 | } | |
352 | ||
353 | static void | |
354 | mt7530_fdb_write(struct mt7530_priv *priv, u16 vid, | |
355 | u8 port_mask, const u8 *mac, | |
356 | u8 aging, u8 type) | |
357 | { | |
358 | u32 reg[3] = { 0 }; | |
359 | int i; | |
360 | ||
361 | reg[1] |= vid & CVID_MASK; | |
362 | reg[2] |= (aging & AGE_TIMER_MASK) << AGE_TIMER; | |
363 | reg[2] |= (port_mask & PORT_MAP_MASK) << PORT_MAP; | |
364 | /* STATIC_ENT indicate that entry is static wouldn't | |
365 | * be aged out and STATIC_EMP specified as erasing an | |
366 | * entry | |
367 | */ | |
368 | reg[2] |= (type & ENT_STATUS_MASK) << ENT_STATUS; | |
369 | reg[1] |= mac[5] << MAC_BYTE_5; | |
370 | reg[1] |= mac[4] << MAC_BYTE_4; | |
371 | reg[0] |= mac[3] << MAC_BYTE_3; | |
372 | reg[0] |= mac[2] << MAC_BYTE_2; | |
373 | reg[0] |= mac[1] << MAC_BYTE_1; | |
374 | reg[0] |= mac[0] << MAC_BYTE_0; | |
375 | ||
376 | /* Write array into the ARL table */ | |
377 | for (i = 0; i < 3; i++) | |
378 | mt7530_write(priv, MT7530_ATA1 + (i * 4), reg[i]); | |
379 | } | |
380 | ||
88bdef8b | 381 | /* Setup TX circuit including relevant PAD and driving */ |
b8f126a8 | 382 | static int |
88bdef8b | 383 | mt7530_pad_clk_setup(struct dsa_switch *ds, phy_interface_t interface) |
b8f126a8 SW |
384 | { |
385 | struct mt7530_priv *priv = ds->priv; | |
7ef6f6f8 RD |
386 | u32 ncpo1, ssc_delta, trgint, i, xtal; |
387 | ||
388 | xtal = mt7530_read(priv, MT7530_MHWTRAP) & HWTRAP_XTAL_MASK; | |
389 | ||
390 | if (xtal == HWTRAP_XTAL_20MHZ) { | |
391 | dev_err(priv->dev, | |
392 | "%s: MT7530 with a 20MHz XTAL is not supported!\n", | |
393 | __func__); | |
394 | return -EINVAL; | |
395 | } | |
b8f126a8 | 396 | |
88bdef8b | 397 | switch (interface) { |
b8f126a8 SW |
398 | case PHY_INTERFACE_MODE_RGMII: |
399 | trgint = 0; | |
7ef6f6f8 | 400 | /* PLL frequency: 125MHz */ |
b8f126a8 | 401 | ncpo1 = 0x0c80; |
b8f126a8 SW |
402 | break; |
403 | case PHY_INTERFACE_MODE_TRGMII: | |
404 | trgint = 1; | |
7ef6f6f8 RD |
405 | if (priv->id == ID_MT7621) { |
406 | /* PLL frequency: 150MHz: 1.2GBit */ | |
407 | if (xtal == HWTRAP_XTAL_40MHZ) | |
408 | ncpo1 = 0x0780; | |
409 | if (xtal == HWTRAP_XTAL_25MHZ) | |
410 | ncpo1 = 0x0a00; | |
411 | } else { /* PLL frequency: 250MHz: 2.0Gbit */ | |
412 | if (xtal == HWTRAP_XTAL_40MHZ) | |
413 | ncpo1 = 0x0c80; | |
414 | if (xtal == HWTRAP_XTAL_25MHZ) | |
415 | ncpo1 = 0x1400; | |
416 | } | |
b8f126a8 SW |
417 | break; |
418 | default: | |
88bdef8b LC |
419 | dev_err(priv->dev, "xMII interface %d not supported\n", |
420 | interface); | |
b8f126a8 SW |
421 | return -EINVAL; |
422 | } | |
423 | ||
7ef6f6f8 RD |
424 | if (xtal == HWTRAP_XTAL_25MHZ) |
425 | ssc_delta = 0x57; | |
426 | else | |
427 | ssc_delta = 0x87; | |
428 | ||
b8f126a8 SW |
429 | mt7530_rmw(priv, MT7530_P6ECR, P6_INTF_MODE_MASK, |
430 | P6_INTF_MODE(trgint)); | |
431 | ||
432 | /* Lower Tx Driving for TRGMII path */ | |
433 | for (i = 0 ; i < NUM_TRGMII_CTRL ; i++) | |
434 | mt7530_write(priv, MT7530_TRGMII_TD_ODT(i), | |
435 | TD_DM_DRVP(8) | TD_DM_DRVN(8)); | |
436 | ||
437 | /* Setup core clock for MT7530 */ | |
438 | if (!trgint) { | |
439 | /* Disable MT7530 core clock */ | |
440 | core_clear(priv, CORE_TRGMII_GSW_CLK_CG, REG_GSWCK_EN); | |
441 | ||
442 | /* Disable PLL, since phy_device has not yet been created | |
443 | * provided for phy_[read,write]_mmd_indirect is called, we | |
444 | * provide our own core_write_mmd_indirect to complete this | |
445 | * function. | |
446 | */ | |
447 | core_write_mmd_indirect(priv, | |
448 | CORE_GSWPLL_GRP1, | |
449 | MDIO_MMD_VEND2, | |
450 | 0); | |
451 | ||
452 | /* Set core clock into 500Mhz */ | |
453 | core_write(priv, CORE_GSWPLL_GRP2, | |
454 | RG_GSWPLL_POSDIV_500M(1) | | |
455 | RG_GSWPLL_FBKDIV_500M(25)); | |
456 | ||
457 | /* Enable PLL */ | |
458 | core_write(priv, CORE_GSWPLL_GRP1, | |
459 | RG_GSWPLL_EN_PRE | | |
460 | RG_GSWPLL_POSDIV_200M(2) | | |
461 | RG_GSWPLL_FBKDIV_200M(32)); | |
462 | ||
463 | /* Enable MT7530 core clock */ | |
464 | core_set(priv, CORE_TRGMII_GSW_CLK_CG, REG_GSWCK_EN); | |
465 | } | |
466 | ||
467 | /* Setup the MT7530 TRGMII Tx Clock */ | |
468 | core_set(priv, CORE_TRGMII_GSW_CLK_CG, REG_GSWCK_EN); | |
469 | core_write(priv, CORE_PLL_GROUP5, RG_LCDDS_PCW_NCPO1(ncpo1)); | |
470 | core_write(priv, CORE_PLL_GROUP6, RG_LCDDS_PCW_NCPO0(0)); | |
471 | core_write(priv, CORE_PLL_GROUP10, RG_LCDDS_SSC_DELTA(ssc_delta)); | |
472 | core_write(priv, CORE_PLL_GROUP11, RG_LCDDS_SSC_DELTA1(ssc_delta)); | |
473 | core_write(priv, CORE_PLL_GROUP4, | |
474 | RG_SYSPLL_DDSFBK_EN | RG_SYSPLL_BIAS_EN | | |
475 | RG_SYSPLL_BIAS_LPF_EN); | |
476 | core_write(priv, CORE_PLL_GROUP2, | |
477 | RG_SYSPLL_EN_NORMAL | RG_SYSPLL_VODEN | | |
478 | RG_SYSPLL_POSDIV(1)); | |
479 | core_write(priv, CORE_PLL_GROUP7, | |
480 | RG_LCDDS_PCW_NCPO_CHG | RG_LCCDS_C(3) | | |
481 | RG_LCDDS_PWDB | RG_LCDDS_ISO_EN); | |
482 | core_set(priv, CORE_TRGMII_GSW_CLK_CG, | |
483 | REG_GSWCK_EN | REG_TRGMIICK_EN); | |
484 | ||
485 | if (!trgint) | |
486 | for (i = 0 ; i < NUM_TRGMII_CTRL; i++) | |
487 | mt7530_rmw(priv, MT7530_TRGMII_RD(i), | |
488 | RD_TAP_MASK, RD_TAP(16)); | |
b8f126a8 SW |
489 | return 0; |
490 | } | |
491 | ||
c288575f LC |
492 | static bool mt7531_dual_sgmii_supported(struct mt7530_priv *priv) |
493 | { | |
494 | u32 val; | |
495 | ||
496 | val = mt7530_read(priv, MT7531_TOP_SIG_SR); | |
497 | ||
498 | return (val & PAD_DUAL_SGMII_EN) != 0; | |
499 | } | |
500 | ||
501 | static int | |
502 | mt7531_pad_setup(struct dsa_switch *ds, phy_interface_t interface) | |
503 | { | |
504 | struct mt7530_priv *priv = ds->priv; | |
505 | u32 top_sig; | |
506 | u32 hwstrap; | |
507 | u32 xtal; | |
508 | u32 val; | |
509 | ||
510 | if (mt7531_dual_sgmii_supported(priv)) | |
511 | return 0; | |
512 | ||
513 | val = mt7530_read(priv, MT7531_CREV); | |
514 | top_sig = mt7530_read(priv, MT7531_TOP_SIG_SR); | |
515 | hwstrap = mt7530_read(priv, MT7531_HWTRAP); | |
516 | if ((val & CHIP_REV_M) > 0) | |
517 | xtal = (top_sig & PAD_MCM_SMI_EN) ? HWTRAP_XTAL_FSEL_40MHZ : | |
518 | HWTRAP_XTAL_FSEL_25MHZ; | |
519 | else | |
520 | xtal = hwstrap & HWTRAP_XTAL_FSEL_MASK; | |
521 | ||
522 | /* Step 1 : Disable MT7531 COREPLL */ | |
523 | val = mt7530_read(priv, MT7531_PLLGP_EN); | |
524 | val &= ~EN_COREPLL; | |
525 | mt7530_write(priv, MT7531_PLLGP_EN, val); | |
526 | ||
527 | /* Step 2: switch to XTAL output */ | |
528 | val = mt7530_read(priv, MT7531_PLLGP_EN); | |
529 | val |= SW_CLKSW; | |
530 | mt7530_write(priv, MT7531_PLLGP_EN, val); | |
531 | ||
532 | val = mt7530_read(priv, MT7531_PLLGP_CR0); | |
533 | val &= ~RG_COREPLL_EN; | |
534 | mt7530_write(priv, MT7531_PLLGP_CR0, val); | |
535 | ||
536 | /* Step 3: disable PLLGP and enable program PLLGP */ | |
537 | val = mt7530_read(priv, MT7531_PLLGP_EN); | |
538 | val |= SW_PLLGP; | |
539 | mt7530_write(priv, MT7531_PLLGP_EN, val); | |
540 | ||
541 | /* Step 4: program COREPLL output frequency to 500MHz */ | |
542 | val = mt7530_read(priv, MT7531_PLLGP_CR0); | |
543 | val &= ~RG_COREPLL_POSDIV_M; | |
544 | val |= 2 << RG_COREPLL_POSDIV_S; | |
545 | mt7530_write(priv, MT7531_PLLGP_CR0, val); | |
546 | usleep_range(25, 35); | |
547 | ||
548 | switch (xtal) { | |
549 | case HWTRAP_XTAL_FSEL_25MHZ: | |
550 | val = mt7530_read(priv, MT7531_PLLGP_CR0); | |
551 | val &= ~RG_COREPLL_SDM_PCW_M; | |
552 | val |= 0x140000 << RG_COREPLL_SDM_PCW_S; | |
553 | mt7530_write(priv, MT7531_PLLGP_CR0, val); | |
554 | break; | |
555 | case HWTRAP_XTAL_FSEL_40MHZ: | |
556 | val = mt7530_read(priv, MT7531_PLLGP_CR0); | |
557 | val &= ~RG_COREPLL_SDM_PCW_M; | |
558 | val |= 0x190000 << RG_COREPLL_SDM_PCW_S; | |
559 | mt7530_write(priv, MT7531_PLLGP_CR0, val); | |
560 | break; | |
561 | }; | |
562 | ||
563 | /* Set feedback divide ratio update signal to high */ | |
564 | val = mt7530_read(priv, MT7531_PLLGP_CR0); | |
565 | val |= RG_COREPLL_SDM_PCW_CHG; | |
566 | mt7530_write(priv, MT7531_PLLGP_CR0, val); | |
567 | /* Wait for at least 16 XTAL clocks */ | |
568 | usleep_range(10, 20); | |
569 | ||
570 | /* Step 5: set feedback divide ratio update signal to low */ | |
571 | val = mt7530_read(priv, MT7531_PLLGP_CR0); | |
572 | val &= ~RG_COREPLL_SDM_PCW_CHG; | |
573 | mt7530_write(priv, MT7531_PLLGP_CR0, val); | |
574 | ||
575 | /* Enable 325M clock for SGMII */ | |
576 | mt7530_write(priv, MT7531_ANA_PLLGP_CR5, 0xad0000); | |
577 | ||
578 | /* Enable 250SSC clock for RGMII */ | |
579 | mt7530_write(priv, MT7531_ANA_PLLGP_CR2, 0x4f40000); | |
580 | ||
581 | /* Step 6: Enable MT7531 PLL */ | |
582 | val = mt7530_read(priv, MT7531_PLLGP_CR0); | |
583 | val |= RG_COREPLL_EN; | |
584 | mt7530_write(priv, MT7531_PLLGP_CR0, val); | |
585 | ||
586 | val = mt7530_read(priv, MT7531_PLLGP_EN); | |
587 | val |= EN_COREPLL; | |
588 | mt7530_write(priv, MT7531_PLLGP_EN, val); | |
589 | usleep_range(25, 35); | |
590 | ||
591 | return 0; | |
592 | } | |
593 | ||
b8f126a8 SW |
594 | static void |
595 | mt7530_mib_reset(struct dsa_switch *ds) | |
596 | { | |
597 | struct mt7530_priv *priv = ds->priv; | |
598 | ||
599 | mt7530_write(priv, MT7530_MIB_CCR, CCR_MIB_FLUSH); | |
600 | mt7530_write(priv, MT7530_MIB_CCR, CCR_MIB_ACTIVATE); | |
601 | } | |
602 | ||
b8f126a8 SW |
603 | static int mt7530_phy_read(struct dsa_switch *ds, int port, int regnum) |
604 | { | |
605 | struct mt7530_priv *priv = ds->priv; | |
606 | ||
607 | return mdiobus_read_nested(priv->bus, port, regnum); | |
608 | } | |
609 | ||
360cc342 CIK |
610 | static int mt7530_phy_write(struct dsa_switch *ds, int port, int regnum, |
611 | u16 val) | |
b8f126a8 SW |
612 | { |
613 | struct mt7530_priv *priv = ds->priv; | |
614 | ||
615 | return mdiobus_write_nested(priv->bus, port, regnum, val); | |
616 | } | |
617 | ||
c288575f LC |
618 | static int |
619 | mt7531_ind_c45_phy_read(struct mt7530_priv *priv, int port, int devad, | |
620 | int regnum) | |
621 | { | |
622 | struct mii_bus *bus = priv->bus; | |
623 | struct mt7530_dummy_poll p; | |
624 | u32 reg, val; | |
625 | int ret; | |
626 | ||
627 | INIT_MT7530_DUMMY_POLL(&p, priv, MT7531_PHY_IAC); | |
628 | ||
629 | mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED); | |
630 | ||
631 | ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val, | |
632 | !(val & MT7531_PHY_ACS_ST), 20, 100000); | |
633 | if (ret < 0) { | |
634 | dev_err(priv->dev, "poll timeout\n"); | |
635 | goto out; | |
636 | } | |
637 | ||
638 | reg = MT7531_MDIO_CL45_ADDR | MT7531_MDIO_PHY_ADDR(port) | | |
639 | MT7531_MDIO_DEV_ADDR(devad) | regnum; | |
640 | mt7530_mii_write(priv, MT7531_PHY_IAC, reg | MT7531_PHY_ACS_ST); | |
641 | ||
642 | ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val, | |
643 | !(val & MT7531_PHY_ACS_ST), 20, 100000); | |
644 | if (ret < 0) { | |
645 | dev_err(priv->dev, "poll timeout\n"); | |
646 | goto out; | |
647 | } | |
648 | ||
649 | reg = MT7531_MDIO_CL45_READ | MT7531_MDIO_PHY_ADDR(port) | | |
650 | MT7531_MDIO_DEV_ADDR(devad); | |
651 | mt7530_mii_write(priv, MT7531_PHY_IAC, reg | MT7531_PHY_ACS_ST); | |
652 | ||
653 | ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val, | |
654 | !(val & MT7531_PHY_ACS_ST), 20, 100000); | |
655 | if (ret < 0) { | |
656 | dev_err(priv->dev, "poll timeout\n"); | |
657 | goto out; | |
658 | } | |
659 | ||
660 | ret = val & MT7531_MDIO_RW_DATA_MASK; | |
661 | out: | |
662 | mutex_unlock(&bus->mdio_lock); | |
663 | ||
664 | return ret; | |
665 | } | |
666 | ||
667 | static int | |
668 | mt7531_ind_c45_phy_write(struct mt7530_priv *priv, int port, int devad, | |
669 | int regnum, u32 data) | |
670 | { | |
671 | struct mii_bus *bus = priv->bus; | |
672 | struct mt7530_dummy_poll p; | |
673 | u32 val, reg; | |
674 | int ret; | |
675 | ||
676 | INIT_MT7530_DUMMY_POLL(&p, priv, MT7531_PHY_IAC); | |
677 | ||
678 | mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED); | |
679 | ||
680 | ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val, | |
681 | !(val & MT7531_PHY_ACS_ST), 20, 100000); | |
682 | if (ret < 0) { | |
683 | dev_err(priv->dev, "poll timeout\n"); | |
684 | goto out; | |
685 | } | |
686 | ||
687 | reg = MT7531_MDIO_CL45_ADDR | MT7531_MDIO_PHY_ADDR(port) | | |
688 | MT7531_MDIO_DEV_ADDR(devad) | regnum; | |
689 | mt7530_mii_write(priv, MT7531_PHY_IAC, reg | MT7531_PHY_ACS_ST); | |
690 | ||
691 | ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val, | |
692 | !(val & MT7531_PHY_ACS_ST), 20, 100000); | |
693 | if (ret < 0) { | |
694 | dev_err(priv->dev, "poll timeout\n"); | |
695 | goto out; | |
696 | } | |
697 | ||
698 | reg = MT7531_MDIO_CL45_WRITE | MT7531_MDIO_PHY_ADDR(port) | | |
699 | MT7531_MDIO_DEV_ADDR(devad) | data; | |
700 | mt7530_mii_write(priv, MT7531_PHY_IAC, reg | MT7531_PHY_ACS_ST); | |
701 | ||
702 | ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val, | |
703 | !(val & MT7531_PHY_ACS_ST), 20, 100000); | |
704 | if (ret < 0) { | |
705 | dev_err(priv->dev, "poll timeout\n"); | |
706 | goto out; | |
707 | } | |
708 | ||
709 | out: | |
710 | mutex_unlock(&bus->mdio_lock); | |
711 | ||
712 | return ret; | |
713 | } | |
714 | ||
715 | static int | |
716 | mt7531_ind_c22_phy_read(struct mt7530_priv *priv, int port, int regnum) | |
717 | { | |
718 | struct mii_bus *bus = priv->bus; | |
719 | struct mt7530_dummy_poll p; | |
720 | int ret; | |
721 | u32 val; | |
722 | ||
723 | INIT_MT7530_DUMMY_POLL(&p, priv, MT7531_PHY_IAC); | |
724 | ||
725 | mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED); | |
726 | ||
727 | ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val, | |
728 | !(val & MT7531_PHY_ACS_ST), 20, 100000); | |
729 | if (ret < 0) { | |
730 | dev_err(priv->dev, "poll timeout\n"); | |
731 | goto out; | |
732 | } | |
733 | ||
734 | val = MT7531_MDIO_CL22_READ | MT7531_MDIO_PHY_ADDR(port) | | |
735 | MT7531_MDIO_REG_ADDR(regnum); | |
736 | ||
737 | mt7530_mii_write(priv, MT7531_PHY_IAC, val | MT7531_PHY_ACS_ST); | |
738 | ||
739 | ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val, | |
740 | !(val & MT7531_PHY_ACS_ST), 20, 100000); | |
741 | if (ret < 0) { | |
742 | dev_err(priv->dev, "poll timeout\n"); | |
743 | goto out; | |
744 | } | |
745 | ||
746 | ret = val & MT7531_MDIO_RW_DATA_MASK; | |
747 | out: | |
748 | mutex_unlock(&bus->mdio_lock); | |
749 | ||
750 | return ret; | |
751 | } | |
752 | ||
753 | static int | |
754 | mt7531_ind_c22_phy_write(struct mt7530_priv *priv, int port, int regnum, | |
755 | u16 data) | |
756 | { | |
757 | struct mii_bus *bus = priv->bus; | |
758 | struct mt7530_dummy_poll p; | |
759 | int ret; | |
760 | u32 reg; | |
761 | ||
762 | INIT_MT7530_DUMMY_POLL(&p, priv, MT7531_PHY_IAC); | |
763 | ||
764 | mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED); | |
765 | ||
766 | ret = readx_poll_timeout(_mt7530_unlocked_read, &p, reg, | |
767 | !(reg & MT7531_PHY_ACS_ST), 20, 100000); | |
768 | if (ret < 0) { | |
769 | dev_err(priv->dev, "poll timeout\n"); | |
770 | goto out; | |
771 | } | |
772 | ||
773 | reg = MT7531_MDIO_CL22_WRITE | MT7531_MDIO_PHY_ADDR(port) | | |
774 | MT7531_MDIO_REG_ADDR(regnum) | data; | |
775 | ||
776 | mt7530_mii_write(priv, MT7531_PHY_IAC, reg | MT7531_PHY_ACS_ST); | |
777 | ||
778 | ret = readx_poll_timeout(_mt7530_unlocked_read, &p, reg, | |
779 | !(reg & MT7531_PHY_ACS_ST), 20, 100000); | |
780 | if (ret < 0) { | |
781 | dev_err(priv->dev, "poll timeout\n"); | |
782 | goto out; | |
783 | } | |
784 | ||
785 | out: | |
786 | mutex_unlock(&bus->mdio_lock); | |
787 | ||
788 | return ret; | |
789 | } | |
790 | ||
791 | static int | |
792 | mt7531_ind_phy_read(struct dsa_switch *ds, int port, int regnum) | |
793 | { | |
794 | struct mt7530_priv *priv = ds->priv; | |
795 | int devad; | |
796 | int ret; | |
797 | ||
798 | if (regnum & MII_ADDR_C45) { | |
799 | devad = (regnum >> MII_DEVADDR_C45_SHIFT) & 0x1f; | |
800 | ret = mt7531_ind_c45_phy_read(priv, port, devad, | |
801 | regnum & MII_REGADDR_C45_MASK); | |
802 | } else { | |
803 | ret = mt7531_ind_c22_phy_read(priv, port, regnum); | |
804 | } | |
805 | ||
806 | return ret; | |
807 | } | |
808 | ||
809 | static int | |
810 | mt7531_ind_phy_write(struct dsa_switch *ds, int port, int regnum, | |
811 | u16 data) | |
812 | { | |
813 | struct mt7530_priv *priv = ds->priv; | |
814 | int devad; | |
815 | int ret; | |
816 | ||
817 | if (regnum & MII_ADDR_C45) { | |
818 | devad = (regnum >> MII_DEVADDR_C45_SHIFT) & 0x1f; | |
819 | ret = mt7531_ind_c45_phy_write(priv, port, devad, | |
820 | regnum & MII_REGADDR_C45_MASK, | |
821 | data); | |
822 | } else { | |
823 | ret = mt7531_ind_c22_phy_write(priv, port, regnum, data); | |
824 | } | |
825 | ||
826 | return ret; | |
827 | } | |
828 | ||
b8f126a8 | 829 | static void |
89f09048 FF |
830 | mt7530_get_strings(struct dsa_switch *ds, int port, u32 stringset, |
831 | uint8_t *data) | |
b8f126a8 SW |
832 | { |
833 | int i; | |
834 | ||
89f09048 FF |
835 | if (stringset != ETH_SS_STATS) |
836 | return; | |
837 | ||
b8f126a8 SW |
838 | for (i = 0; i < ARRAY_SIZE(mt7530_mib); i++) |
839 | strncpy(data + i * ETH_GSTRING_LEN, mt7530_mib[i].name, | |
840 | ETH_GSTRING_LEN); | |
841 | } | |
842 | ||
843 | static void | |
844 | mt7530_get_ethtool_stats(struct dsa_switch *ds, int port, | |
845 | uint64_t *data) | |
846 | { | |
847 | struct mt7530_priv *priv = ds->priv; | |
848 | const struct mt7530_mib_desc *mib; | |
849 | u32 reg, i; | |
850 | u64 hi; | |
851 | ||
852 | for (i = 0; i < ARRAY_SIZE(mt7530_mib); i++) { | |
853 | mib = &mt7530_mib[i]; | |
854 | reg = MT7530_PORT_MIB_COUNTER(port) + mib->offset; | |
855 | ||
856 | data[i] = mt7530_read(priv, reg); | |
857 | if (mib->size == 2) { | |
858 | hi = mt7530_read(priv, reg + 4); | |
859 | data[i] |= hi << 32; | |
860 | } | |
861 | } | |
862 | } | |
863 | ||
864 | static int | |
89f09048 | 865 | mt7530_get_sset_count(struct dsa_switch *ds, int port, int sset) |
b8f126a8 | 866 | { |
89f09048 FF |
867 | if (sset != ETH_SS_STATS) |
868 | return 0; | |
869 | ||
b8f126a8 SW |
870 | return ARRAY_SIZE(mt7530_mib); |
871 | } | |
872 | ||
38f790a8 RD |
873 | static void mt7530_setup_port5(struct dsa_switch *ds, phy_interface_t interface) |
874 | { | |
875 | struct mt7530_priv *priv = ds->priv; | |
876 | u8 tx_delay = 0; | |
877 | int val; | |
878 | ||
879 | mutex_lock(&priv->reg_mutex); | |
880 | ||
881 | val = mt7530_read(priv, MT7530_MHWTRAP); | |
882 | ||
883 | val |= MHWTRAP_MANUAL | MHWTRAP_P5_MAC_SEL | MHWTRAP_P5_DIS; | |
884 | val &= ~MHWTRAP_P5_RGMII_MODE & ~MHWTRAP_PHY0_SEL; | |
885 | ||
886 | switch (priv->p5_intf_sel) { | |
887 | case P5_INTF_SEL_PHY_P0: | |
888 | /* MT7530_P5_MODE_GPHY_P0: 2nd GMAC -> P5 -> P0 */ | |
889 | val |= MHWTRAP_PHY0_SEL; | |
df561f66 | 890 | fallthrough; |
38f790a8 RD |
891 | case P5_INTF_SEL_PHY_P4: |
892 | /* MT7530_P5_MODE_GPHY_P4: 2nd GMAC -> P5 -> P4 */ | |
893 | val &= ~MHWTRAP_P5_MAC_SEL & ~MHWTRAP_P5_DIS; | |
894 | ||
895 | /* Setup the MAC by default for the cpu port */ | |
896 | mt7530_write(priv, MT7530_PMCR_P(5), 0x56300); | |
897 | break; | |
898 | case P5_INTF_SEL_GMAC5: | |
899 | /* MT7530_P5_MODE_GMAC: P5 -> External phy or 2nd GMAC */ | |
900 | val &= ~MHWTRAP_P5_DIS; | |
901 | break; | |
902 | case P5_DISABLED: | |
903 | interface = PHY_INTERFACE_MODE_NA; | |
904 | break; | |
905 | default: | |
906 | dev_err(ds->dev, "Unsupported p5_intf_sel %d\n", | |
907 | priv->p5_intf_sel); | |
908 | goto unlock_exit; | |
909 | } | |
910 | ||
911 | /* Setup RGMII settings */ | |
912 | if (phy_interface_mode_is_rgmii(interface)) { | |
913 | val |= MHWTRAP_P5_RGMII_MODE; | |
914 | ||
915 | /* P5 RGMII RX Clock Control: delay setting for 1000M */ | |
916 | mt7530_write(priv, MT7530_P5RGMIIRXCR, CSR_RGMII_EDGE_ALIGN); | |
917 | ||
918 | /* Don't set delay in DSA mode */ | |
919 | if (!dsa_is_dsa_port(priv->ds, 5) && | |
920 | (interface == PHY_INTERFACE_MODE_RGMII_TXID || | |
921 | interface == PHY_INTERFACE_MODE_RGMII_ID)) | |
922 | tx_delay = 4; /* n * 0.5 ns */ | |
923 | ||
924 | /* P5 RGMII TX Clock Control: delay x */ | |
925 | mt7530_write(priv, MT7530_P5RGMIITXCR, | |
926 | CSR_RGMII_TXC_CFG(0x10 + tx_delay)); | |
927 | ||
928 | /* reduce P5 RGMII Tx driving, 8mA */ | |
929 | mt7530_write(priv, MT7530_IO_DRV_CR, | |
930 | P5_IO_CLK_DRV(1) | P5_IO_DATA_DRV(1)); | |
931 | } | |
932 | ||
933 | mt7530_write(priv, MT7530_MHWTRAP, val); | |
934 | ||
935 | dev_dbg(ds->dev, "Setup P5, HWTRAP=0x%x, intf_sel=%s, phy-mode=%s\n", | |
936 | val, p5_intf_modes(priv->p5_intf_sel), phy_modes(interface)); | |
937 | ||
938 | priv->p5_interface = interface; | |
939 | ||
940 | unlock_exit: | |
941 | mutex_unlock(&priv->reg_mutex); | |
942 | } | |
943 | ||
b8f126a8 | 944 | static int |
c288575f | 945 | mt753x_cpu_port_enable(struct dsa_switch *ds, int port) |
b8f126a8 | 946 | { |
c288575f | 947 | struct mt7530_priv *priv = ds->priv; |
0ce0c3cd | 948 | int ret; |
c288575f LC |
949 | |
950 | /* Setup max capability of CPU port at first */ | |
0ce0c3cd AD |
951 | if (priv->info->cpu_port_config) { |
952 | ret = priv->info->cpu_port_config(ds, port); | |
953 | if (ret) | |
954 | return ret; | |
955 | } | |
c288575f | 956 | |
b8f126a8 SW |
957 | /* Enable Mediatek header mode on the cpu port */ |
958 | mt7530_write(priv, MT7530_PVC_P(port), | |
959 | PORT_SPEC_TAG); | |
960 | ||
5e5502e0 DQ |
961 | /* Unknown multicast frame forwarding to the cpu port */ |
962 | mt7530_rmw(priv, MT7530_MFC, UNM_FFP_MASK, UNM_FFP(BIT(port))); | |
b8f126a8 | 963 | |
ddda1ac1 GU |
964 | /* Set CPU port number */ |
965 | if (priv->id == ID_MT7621) | |
966 | mt7530_rmw(priv, MT7530_MFC, CPU_MASK, CPU_EN | CPU_PORT(port)); | |
967 | ||
b8f126a8 | 968 | /* CPU port gets connected to all user ports of |
c288575f | 969 | * the switch. |
b8f126a8 SW |
970 | */ |
971 | mt7530_write(priv, MT7530_PCR_P(port), | |
02bc6e54 | 972 | PCR_MATRIX(dsa_user_ports(priv->ds))); |
b8f126a8 SW |
973 | |
974 | return 0; | |
975 | } | |
976 | ||
977 | static int | |
978 | mt7530_port_enable(struct dsa_switch *ds, int port, | |
979 | struct phy_device *phy) | |
980 | { | |
981 | struct mt7530_priv *priv = ds->priv; | |
982 | ||
74be4bab VD |
983 | if (!dsa_is_user_port(ds, port)) |
984 | return 0; | |
985 | ||
b8f126a8 SW |
986 | mutex_lock(&priv->reg_mutex); |
987 | ||
b8f126a8 SW |
988 | /* Allow the user port gets connected to the cpu port and also |
989 | * restore the port matrix if the port is the member of a certain | |
990 | * bridge. | |
991 | */ | |
992 | priv->ports[port].pm |= PCR_MATRIX(BIT(MT7530_CPU_PORT)); | |
993 | priv->ports[port].enable = true; | |
994 | mt7530_rmw(priv, MT7530_PCR_P(port), PCR_MATRIX_MASK, | |
995 | priv->ports[port].pm); | |
1d01145f | 996 | mt7530_clear(priv, MT7530_PMCR_P(port), PMCR_LINK_SETTINGS_MASK); |
b8f126a8 SW |
997 | |
998 | mutex_unlock(&priv->reg_mutex); | |
999 | ||
1000 | return 0; | |
1001 | } | |
1002 | ||
1003 | static void | |
75104db0 | 1004 | mt7530_port_disable(struct dsa_switch *ds, int port) |
b8f126a8 SW |
1005 | { |
1006 | struct mt7530_priv *priv = ds->priv; | |
1007 | ||
74be4bab VD |
1008 | if (!dsa_is_user_port(ds, port)) |
1009 | return; | |
1010 | ||
b8f126a8 SW |
1011 | mutex_lock(&priv->reg_mutex); |
1012 | ||
1013 | /* Clear up all port matrix which could be restored in the next | |
1014 | * enablement for the port. | |
1015 | */ | |
1016 | priv->ports[port].enable = false; | |
1017 | mt7530_rmw(priv, MT7530_PCR_P(port), PCR_MATRIX_MASK, | |
1018 | PCR_MATRIX_CLR); | |
1d01145f | 1019 | mt7530_clear(priv, MT7530_PMCR_P(port), PMCR_LINK_SETTINGS_MASK); |
b8f126a8 SW |
1020 | |
1021 | mutex_unlock(&priv->reg_mutex); | |
1022 | } | |
1023 | ||
1024 | static void | |
1025 | mt7530_stp_state_set(struct dsa_switch *ds, int port, u8 state) | |
1026 | { | |
1027 | struct mt7530_priv *priv = ds->priv; | |
1028 | u32 stp_state; | |
1029 | ||
1030 | switch (state) { | |
1031 | case BR_STATE_DISABLED: | |
1032 | stp_state = MT7530_STP_DISABLED; | |
1033 | break; | |
1034 | case BR_STATE_BLOCKING: | |
1035 | stp_state = MT7530_STP_BLOCKING; | |
1036 | break; | |
1037 | case BR_STATE_LISTENING: | |
1038 | stp_state = MT7530_STP_LISTENING; | |
1039 | break; | |
1040 | case BR_STATE_LEARNING: | |
1041 | stp_state = MT7530_STP_LEARNING; | |
1042 | break; | |
1043 | case BR_STATE_FORWARDING: | |
1044 | default: | |
1045 | stp_state = MT7530_STP_FORWARDING; | |
1046 | break; | |
1047 | } | |
1048 | ||
1049 | mt7530_rmw(priv, MT7530_SSP_P(port), FID_PST_MASK, stp_state); | |
1050 | } | |
1051 | ||
1052 | static int | |
1053 | mt7530_port_bridge_join(struct dsa_switch *ds, int port, | |
1054 | struct net_device *bridge) | |
1055 | { | |
1056 | struct mt7530_priv *priv = ds->priv; | |
1057 | u32 port_bitmap = BIT(MT7530_CPU_PORT); | |
1058 | int i; | |
1059 | ||
1060 | mutex_lock(&priv->reg_mutex); | |
1061 | ||
1062 | for (i = 0; i < MT7530_NUM_PORTS; i++) { | |
1063 | /* Add this port to the port matrix of the other ports in the | |
1064 | * same bridge. If the port is disabled, port matrix is kept | |
1065 | * and not being setup until the port becomes enabled. | |
1066 | */ | |
4a5b85ff | 1067 | if (dsa_is_user_port(ds, i) && i != port) { |
c8652c83 | 1068 | if (dsa_to_port(ds, i)->bridge_dev != bridge) |
b8f126a8 SW |
1069 | continue; |
1070 | if (priv->ports[i].enable) | |
1071 | mt7530_set(priv, MT7530_PCR_P(i), | |
1072 | PCR_MATRIX(BIT(port))); | |
1073 | priv->ports[i].pm |= PCR_MATRIX(BIT(port)); | |
1074 | ||
1075 | port_bitmap |= BIT(i); | |
1076 | } | |
1077 | } | |
1078 | ||
1079 | /* Add the all other ports to this port matrix. */ | |
1080 | if (priv->ports[port].enable) | |
1081 | mt7530_rmw(priv, MT7530_PCR_P(port), | |
1082 | PCR_MATRIX_MASK, PCR_MATRIX(port_bitmap)); | |
1083 | priv->ports[port].pm |= PCR_MATRIX(port_bitmap); | |
1084 | ||
1085 | mutex_unlock(&priv->reg_mutex); | |
1086 | ||
1087 | return 0; | |
1088 | } | |
1089 | ||
83163f7d SW |
1090 | static void |
1091 | mt7530_port_set_vlan_unaware(struct dsa_switch *ds, int port) | |
1092 | { | |
1093 | struct mt7530_priv *priv = ds->priv; | |
1094 | bool all_user_ports_removed = true; | |
1095 | int i; | |
1096 | ||
1097 | /* When a port is removed from the bridge, the port would be set up | |
1098 | * back to the default as is at initial boot which is a VLAN-unaware | |
1099 | * port. | |
1100 | */ | |
1101 | mt7530_rmw(priv, MT7530_PCR_P(port), PCR_PORT_VLAN_MASK, | |
1102 | MT7530_PORT_MATRIX_MODE); | |
e045124e DQ |
1103 | mt7530_rmw(priv, MT7530_PVC_P(port), VLAN_ATTR_MASK | PVC_EG_TAG_MASK, |
1104 | VLAN_ATTR(MT7530_VLAN_TRANSPARENT) | | |
1105 | PVC_EG_TAG(MT7530_VLAN_EG_CONSISTENT)); | |
83163f7d | 1106 | |
83163f7d SW |
1107 | for (i = 0; i < MT7530_NUM_PORTS; i++) { |
1108 | if (dsa_is_user_port(ds, i) && | |
68bb8ea8 | 1109 | dsa_port_is_vlan_filtering(dsa_to_port(ds, i))) { |
83163f7d SW |
1110 | all_user_ports_removed = false; |
1111 | break; | |
1112 | } | |
1113 | } | |
1114 | ||
1115 | /* CPU port also does the same thing until all user ports belonging to | |
1116 | * the CPU port get out of VLAN filtering mode. | |
1117 | */ | |
1118 | if (all_user_ports_removed) { | |
1119 | mt7530_write(priv, MT7530_PCR_P(MT7530_CPU_PORT), | |
1120 | PCR_MATRIX(dsa_user_ports(priv->ds))); | |
e045124e DQ |
1121 | mt7530_write(priv, MT7530_PVC_P(MT7530_CPU_PORT), PORT_SPEC_TAG |
1122 | | PVC_EG_TAG(MT7530_VLAN_EG_CONSISTENT)); | |
83163f7d SW |
1123 | } |
1124 | } | |
1125 | ||
1126 | static void | |
1127 | mt7530_port_set_vlan_aware(struct dsa_switch *ds, int port) | |
1128 | { | |
1129 | struct mt7530_priv *priv = ds->priv; | |
1130 | ||
1131 | /* The real fabric path would be decided on the membership in the | |
1132 | * entry of VLAN table. PCR_MATRIX set up here with ALL_MEMBERS | |
1133 | * means potential VLAN can be consisting of certain subset of all | |
1134 | * ports. | |
1135 | */ | |
1136 | mt7530_rmw(priv, MT7530_PCR_P(port), | |
1137 | PCR_MATRIX_MASK, PCR_MATRIX(MT7530_ALL_MEMBERS)); | |
1138 | ||
1139 | /* Trapped into security mode allows packet forwarding through VLAN | |
38152ea3 DQ |
1140 | * table lookup. CPU port is set to fallback mode to let untagged |
1141 | * frames pass through. | |
83163f7d | 1142 | */ |
38152ea3 DQ |
1143 | if (dsa_is_cpu_port(ds, port)) |
1144 | mt7530_rmw(priv, MT7530_PCR_P(port), PCR_PORT_VLAN_MASK, | |
1145 | MT7530_PORT_FALLBACK_MODE); | |
1146 | else | |
1147 | mt7530_rmw(priv, MT7530_PCR_P(port), PCR_PORT_VLAN_MASK, | |
1148 | MT7530_PORT_SECURITY_MODE); | |
83163f7d SW |
1149 | |
1150 | /* Set the port as a user port which is to be able to recognize VID | |
1151 | * from incoming packets before fetching entry within the VLAN table. | |
1152 | */ | |
e045124e DQ |
1153 | mt7530_rmw(priv, MT7530_PVC_P(port), VLAN_ATTR_MASK | PVC_EG_TAG_MASK, |
1154 | VLAN_ATTR(MT7530_VLAN_USER) | | |
1155 | PVC_EG_TAG(MT7530_VLAN_EG_DISABLED)); | |
83163f7d SW |
1156 | } |
1157 | ||
b8f126a8 SW |
1158 | static void |
1159 | mt7530_port_bridge_leave(struct dsa_switch *ds, int port, | |
1160 | struct net_device *bridge) | |
1161 | { | |
1162 | struct mt7530_priv *priv = ds->priv; | |
1163 | int i; | |
1164 | ||
1165 | mutex_lock(&priv->reg_mutex); | |
1166 | ||
1167 | for (i = 0; i < MT7530_NUM_PORTS; i++) { | |
1168 | /* Remove this port from the port matrix of the other ports | |
1169 | * in the same bridge. If the port is disabled, port matrix | |
1170 | * is kept and not being setup until the port becomes enabled. | |
83163f7d SW |
1171 | * And the other port's port matrix cannot be broken when the |
1172 | * other port is still a VLAN-aware port. | |
b8f126a8 | 1173 | */ |
2a130551 | 1174 | if (dsa_is_user_port(ds, i) && i != port && |
68bb8ea8 | 1175 | !dsa_port_is_vlan_filtering(dsa_to_port(ds, i))) { |
c8652c83 | 1176 | if (dsa_to_port(ds, i)->bridge_dev != bridge) |
b8f126a8 SW |
1177 | continue; |
1178 | if (priv->ports[i].enable) | |
1179 | mt7530_clear(priv, MT7530_PCR_P(i), | |
1180 | PCR_MATRIX(BIT(port))); | |
1181 | priv->ports[i].pm &= ~PCR_MATRIX(BIT(port)); | |
1182 | } | |
1183 | } | |
1184 | ||
1185 | /* Set the cpu port to be the only one in the port matrix of | |
1186 | * this port. | |
1187 | */ | |
1188 | if (priv->ports[port].enable) | |
1189 | mt7530_rmw(priv, MT7530_PCR_P(port), PCR_MATRIX_MASK, | |
1190 | PCR_MATRIX(BIT(MT7530_CPU_PORT))); | |
1191 | priv->ports[port].pm = PCR_MATRIX(BIT(MT7530_CPU_PORT)); | |
1192 | ||
1193 | mutex_unlock(&priv->reg_mutex); | |
1194 | } | |
1195 | ||
1196 | static int | |
b8f126a8 | 1197 | mt7530_port_fdb_add(struct dsa_switch *ds, int port, |
6c2c1dcb | 1198 | const unsigned char *addr, u16 vid) |
b8f126a8 SW |
1199 | { |
1200 | struct mt7530_priv *priv = ds->priv; | |
1b6dd556 | 1201 | int ret; |
b8f126a8 SW |
1202 | u8 port_mask = BIT(port); |
1203 | ||
1204 | mutex_lock(&priv->reg_mutex); | |
6c2c1dcb | 1205 | mt7530_fdb_write(priv, vid, port_mask, addr, -1, STATIC_ENT); |
18bd5949 | 1206 | ret = mt7530_fdb_cmd(priv, MT7530_FDB_WRITE, NULL); |
b8f126a8 | 1207 | mutex_unlock(&priv->reg_mutex); |
1b6dd556 AS |
1208 | |
1209 | return ret; | |
b8f126a8 SW |
1210 | } |
1211 | ||
1212 | static int | |
1213 | mt7530_port_fdb_del(struct dsa_switch *ds, int port, | |
6c2c1dcb | 1214 | const unsigned char *addr, u16 vid) |
b8f126a8 SW |
1215 | { |
1216 | struct mt7530_priv *priv = ds->priv; | |
1217 | int ret; | |
1218 | u8 port_mask = BIT(port); | |
1219 | ||
1220 | mutex_lock(&priv->reg_mutex); | |
6c2c1dcb | 1221 | mt7530_fdb_write(priv, vid, port_mask, addr, -1, STATIC_EMP); |
18bd5949 | 1222 | ret = mt7530_fdb_cmd(priv, MT7530_FDB_WRITE, NULL); |
b8f126a8 SW |
1223 | mutex_unlock(&priv->reg_mutex); |
1224 | ||
1225 | return ret; | |
1226 | } | |
1227 | ||
1228 | static int | |
1229 | mt7530_port_fdb_dump(struct dsa_switch *ds, int port, | |
2bedde1a | 1230 | dsa_fdb_dump_cb_t *cb, void *data) |
b8f126a8 SW |
1231 | { |
1232 | struct mt7530_priv *priv = ds->priv; | |
1233 | struct mt7530_fdb _fdb = { 0 }; | |
1234 | int cnt = MT7530_NUM_FDB_RECORDS; | |
1235 | int ret = 0; | |
1236 | u32 rsp = 0; | |
1237 | ||
1238 | mutex_lock(&priv->reg_mutex); | |
1239 | ||
1240 | ret = mt7530_fdb_cmd(priv, MT7530_FDB_START, &rsp); | |
1241 | if (ret < 0) | |
1242 | goto err; | |
1243 | ||
1244 | do { | |
1245 | if (rsp & ATC_SRCH_HIT) { | |
1246 | mt7530_fdb_read(priv, &_fdb); | |
1247 | if (_fdb.port_mask & BIT(port)) { | |
2bedde1a AS |
1248 | ret = cb(_fdb.mac, _fdb.vid, _fdb.noarp, |
1249 | data); | |
b8f126a8 SW |
1250 | if (ret < 0) |
1251 | break; | |
1252 | } | |
1253 | } | |
1254 | } while (--cnt && | |
1255 | !(rsp & ATC_SRCH_END) && | |
1256 | !mt7530_fdb_cmd(priv, MT7530_FDB_NEXT, &rsp)); | |
1257 | err: | |
1258 | mutex_unlock(&priv->reg_mutex); | |
1259 | ||
1260 | return 0; | |
1261 | } | |
1262 | ||
83163f7d SW |
1263 | static int |
1264 | mt7530_vlan_cmd(struct mt7530_priv *priv, enum mt7530_vlan_cmd cmd, u16 vid) | |
1265 | { | |
1266 | struct mt7530_dummy_poll p; | |
1267 | u32 val; | |
1268 | int ret; | |
1269 | ||
1270 | val = VTCR_BUSY | VTCR_FUNC(cmd) | vid; | |
1271 | mt7530_write(priv, MT7530_VTCR, val); | |
1272 | ||
1273 | INIT_MT7530_DUMMY_POLL(&p, priv, MT7530_VTCR); | |
1274 | ret = readx_poll_timeout(_mt7530_read, &p, val, | |
1275 | !(val & VTCR_BUSY), 20, 20000); | |
1276 | if (ret < 0) { | |
1277 | dev_err(priv->dev, "poll timeout\n"); | |
1278 | return ret; | |
1279 | } | |
1280 | ||
1281 | val = mt7530_read(priv, MT7530_VTCR); | |
1282 | if (val & VTCR_INVALID) { | |
1283 | dev_err(priv->dev, "read VTCR invalid\n"); | |
1284 | return -EINVAL; | |
1285 | } | |
1286 | ||
1287 | return 0; | |
1288 | } | |
1289 | ||
1290 | static int | |
1291 | mt7530_port_vlan_filtering(struct dsa_switch *ds, int port, | |
2e554a7a VO |
1292 | bool vlan_filtering, |
1293 | struct switchdev_trans *trans) | |
83163f7d | 1294 | { |
2e554a7a VO |
1295 | if (switchdev_trans_ph_prepare(trans)) |
1296 | return 0; | |
1297 | ||
83163f7d SW |
1298 | if (vlan_filtering) { |
1299 | /* The port is being kept as VLAN-unaware port when bridge is | |
1300 | * set up with vlan_filtering not being set, Otherwise, the | |
1301 | * port and the corresponding CPU port is required the setup | |
1302 | * for becoming a VLAN-aware port. | |
1303 | */ | |
1304 | mt7530_port_set_vlan_aware(ds, port); | |
1305 | mt7530_port_set_vlan_aware(ds, MT7530_CPU_PORT); | |
e3ee07d1 VO |
1306 | } else { |
1307 | mt7530_port_set_vlan_unaware(ds, port); | |
83163f7d SW |
1308 | } |
1309 | ||
1310 | return 0; | |
1311 | } | |
1312 | ||
1313 | static int | |
1314 | mt7530_port_vlan_prepare(struct dsa_switch *ds, int port, | |
1315 | const struct switchdev_obj_port_vlan *vlan) | |
1316 | { | |
1317 | /* nothing needed */ | |
1318 | ||
1319 | return 0; | |
1320 | } | |
1321 | ||
1322 | static void | |
1323 | mt7530_hw_vlan_add(struct mt7530_priv *priv, | |
1324 | struct mt7530_hw_vlan_entry *entry) | |
1325 | { | |
1326 | u8 new_members; | |
1327 | u32 val; | |
1328 | ||
1329 | new_members = entry->old_members | BIT(entry->port) | | |
1330 | BIT(MT7530_CPU_PORT); | |
1331 | ||
1332 | /* Validate the entry with independent learning, create egress tag per | |
1333 | * VLAN and joining the port as one of the port members. | |
1334 | */ | |
1335 | val = IVL_MAC | VTAG_EN | PORT_MEM(new_members) | VLAN_VALID; | |
1336 | mt7530_write(priv, MT7530_VAWD1, val); | |
1337 | ||
1338 | /* Decide whether adding tag or not for those outgoing packets from the | |
1339 | * port inside the VLAN. | |
1340 | */ | |
1341 | val = entry->untagged ? MT7530_VLAN_EGRESS_UNTAG : | |
1342 | MT7530_VLAN_EGRESS_TAG; | |
1343 | mt7530_rmw(priv, MT7530_VAWD2, | |
1344 | ETAG_CTRL_P_MASK(entry->port), | |
1345 | ETAG_CTRL_P(entry->port, val)); | |
1346 | ||
1347 | /* CPU port is always taken as a tagged port for serving more than one | |
1348 | * VLANs across and also being applied with egress type stack mode for | |
1349 | * that VLAN tags would be appended after hardware special tag used as | |
1350 | * DSA tag. | |
1351 | */ | |
1352 | mt7530_rmw(priv, MT7530_VAWD2, | |
1353 | ETAG_CTRL_P_MASK(MT7530_CPU_PORT), | |
1354 | ETAG_CTRL_P(MT7530_CPU_PORT, | |
1355 | MT7530_VLAN_EGRESS_STACK)); | |
1356 | } | |
1357 | ||
1358 | static void | |
1359 | mt7530_hw_vlan_del(struct mt7530_priv *priv, | |
1360 | struct mt7530_hw_vlan_entry *entry) | |
1361 | { | |
1362 | u8 new_members; | |
1363 | u32 val; | |
1364 | ||
1365 | new_members = entry->old_members & ~BIT(entry->port); | |
1366 | ||
1367 | val = mt7530_read(priv, MT7530_VAWD1); | |
1368 | if (!(val & VLAN_VALID)) { | |
1369 | dev_err(priv->dev, | |
1370 | "Cannot be deleted due to invalid entry\n"); | |
1371 | return; | |
1372 | } | |
1373 | ||
1374 | /* If certain member apart from CPU port is still alive in the VLAN, | |
1375 | * the entry would be kept valid. Otherwise, the entry is got to be | |
1376 | * disabled. | |
1377 | */ | |
1378 | if (new_members && new_members != BIT(MT7530_CPU_PORT)) { | |
1379 | val = IVL_MAC | VTAG_EN | PORT_MEM(new_members) | | |
1380 | VLAN_VALID; | |
1381 | mt7530_write(priv, MT7530_VAWD1, val); | |
1382 | } else { | |
1383 | mt7530_write(priv, MT7530_VAWD1, 0); | |
1384 | mt7530_write(priv, MT7530_VAWD2, 0); | |
1385 | } | |
1386 | } | |
1387 | ||
1388 | static void | |
1389 | mt7530_hw_vlan_update(struct mt7530_priv *priv, u16 vid, | |
1390 | struct mt7530_hw_vlan_entry *entry, | |
1391 | mt7530_vlan_op vlan_op) | |
1392 | { | |
1393 | u32 val; | |
1394 | ||
1395 | /* Fetch entry */ | |
1396 | mt7530_vlan_cmd(priv, MT7530_VTCR_RD_VID, vid); | |
1397 | ||
1398 | val = mt7530_read(priv, MT7530_VAWD1); | |
1399 | ||
1400 | entry->old_members = (val >> PORT_MEM_SHFT) & PORT_MEM_MASK; | |
1401 | ||
1402 | /* Manipulate entry */ | |
1403 | vlan_op(priv, entry); | |
1404 | ||
1405 | /* Flush result to hardware */ | |
1406 | mt7530_vlan_cmd(priv, MT7530_VTCR_WR_VID, vid); | |
1407 | } | |
1408 | ||
1409 | static void | |
1410 | mt7530_port_vlan_add(struct dsa_switch *ds, int port, | |
1411 | const struct switchdev_obj_port_vlan *vlan) | |
1412 | { | |
1413 | bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED; | |
1414 | bool pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID; | |
1415 | struct mt7530_hw_vlan_entry new_entry; | |
1416 | struct mt7530_priv *priv = ds->priv; | |
1417 | u16 vid; | |
1418 | ||
83163f7d SW |
1419 | mutex_lock(&priv->reg_mutex); |
1420 | ||
1421 | for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) { | |
1422 | mt7530_hw_vlan_entry_init(&new_entry, port, untagged); | |
1423 | mt7530_hw_vlan_update(priv, vid, &new_entry, | |
1424 | mt7530_hw_vlan_add); | |
1425 | } | |
1426 | ||
1427 | if (pvid) { | |
1428 | mt7530_rmw(priv, MT7530_PPBV1_P(port), G0_PORT_VID_MASK, | |
1429 | G0_PORT_VID(vlan->vid_end)); | |
1430 | priv->ports[port].pvid = vlan->vid_end; | |
1431 | } | |
1432 | ||
1433 | mutex_unlock(&priv->reg_mutex); | |
1434 | } | |
1435 | ||
1436 | static int | |
1437 | mt7530_port_vlan_del(struct dsa_switch *ds, int port, | |
1438 | const struct switchdev_obj_port_vlan *vlan) | |
1439 | { | |
1440 | struct mt7530_hw_vlan_entry target_entry; | |
1441 | struct mt7530_priv *priv = ds->priv; | |
1442 | u16 vid, pvid; | |
1443 | ||
83163f7d SW |
1444 | mutex_lock(&priv->reg_mutex); |
1445 | ||
1446 | pvid = priv->ports[port].pvid; | |
1447 | for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) { | |
1448 | mt7530_hw_vlan_entry_init(&target_entry, port, 0); | |
1449 | mt7530_hw_vlan_update(priv, vid, &target_entry, | |
1450 | mt7530_hw_vlan_del); | |
1451 | ||
1452 | /* PVID is being restored to the default whenever the PVID port | |
1453 | * is being removed from the VLAN. | |
1454 | */ | |
1455 | if (pvid == vid) | |
1456 | pvid = G0_PORT_VID_DEF; | |
1457 | } | |
1458 | ||
1459 | mt7530_rmw(priv, MT7530_PPBV1_P(port), G0_PORT_VID_MASK, pvid); | |
1460 | priv->ports[port].pvid = pvid; | |
1461 | ||
1462 | mutex_unlock(&priv->reg_mutex); | |
1463 | ||
1464 | return 0; | |
1465 | } | |
1466 | ||
c288575f LC |
1467 | static int mt753x_mirror_port_get(unsigned int id, u32 val) |
1468 | { | |
1469 | return (id == ID_MT7531) ? MT7531_MIRROR_PORT_GET(val) : | |
1470 | MIRROR_PORT(val); | |
1471 | } | |
1472 | ||
1473 | static int mt753x_mirror_port_set(unsigned int id, u32 val) | |
1474 | { | |
1475 | return (id == ID_MT7531) ? MT7531_MIRROR_PORT_SET(val) : | |
1476 | MIRROR_PORT(val); | |
1477 | } | |
1478 | ||
1479 | static int mt753x_port_mirror_add(struct dsa_switch *ds, int port, | |
37feab60 DQ |
1480 | struct dsa_mall_mirror_tc_entry *mirror, |
1481 | bool ingress) | |
1482 | { | |
1483 | struct mt7530_priv *priv = ds->priv; | |
c288575f | 1484 | int monitor_port; |
37feab60 DQ |
1485 | u32 val; |
1486 | ||
1487 | /* Check for existent entry */ | |
1488 | if ((ingress ? priv->mirror_rx : priv->mirror_tx) & BIT(port)) | |
1489 | return -EEXIST; | |
1490 | ||
c288575f | 1491 | val = mt7530_read(priv, MT753X_MIRROR_REG(priv->id)); |
37feab60 DQ |
1492 | |
1493 | /* MT7530 only supports one monitor port */ | |
c288575f LC |
1494 | monitor_port = mt753x_mirror_port_get(priv->id, val); |
1495 | if (val & MT753X_MIRROR_EN(priv->id) && | |
1496 | monitor_port != mirror->to_local_port) | |
37feab60 DQ |
1497 | return -EEXIST; |
1498 | ||
c288575f LC |
1499 | val |= MT753X_MIRROR_EN(priv->id); |
1500 | val &= ~MT753X_MIRROR_MASK(priv->id); | |
1501 | val |= mt753x_mirror_port_set(priv->id, mirror->to_local_port); | |
1502 | mt7530_write(priv, MT753X_MIRROR_REG(priv->id), val); | |
37feab60 DQ |
1503 | |
1504 | val = mt7530_read(priv, MT7530_PCR_P(port)); | |
1505 | if (ingress) { | |
1506 | val |= PORT_RX_MIR; | |
1507 | priv->mirror_rx |= BIT(port); | |
1508 | } else { | |
1509 | val |= PORT_TX_MIR; | |
1510 | priv->mirror_tx |= BIT(port); | |
1511 | } | |
1512 | mt7530_write(priv, MT7530_PCR_P(port), val); | |
1513 | ||
1514 | return 0; | |
1515 | } | |
1516 | ||
c288575f | 1517 | static void mt753x_port_mirror_del(struct dsa_switch *ds, int port, |
37feab60 DQ |
1518 | struct dsa_mall_mirror_tc_entry *mirror) |
1519 | { | |
1520 | struct mt7530_priv *priv = ds->priv; | |
1521 | u32 val; | |
1522 | ||
1523 | val = mt7530_read(priv, MT7530_PCR_P(port)); | |
1524 | if (mirror->ingress) { | |
1525 | val &= ~PORT_RX_MIR; | |
1526 | priv->mirror_rx &= ~BIT(port); | |
1527 | } else { | |
1528 | val &= ~PORT_TX_MIR; | |
1529 | priv->mirror_tx &= ~BIT(port); | |
1530 | } | |
1531 | mt7530_write(priv, MT7530_PCR_P(port), val); | |
1532 | ||
1533 | if (!priv->mirror_rx && !priv->mirror_tx) { | |
c288575f LC |
1534 | val = mt7530_read(priv, MT753X_MIRROR_REG(priv->id)); |
1535 | val &= ~MT753X_MIRROR_EN(priv->id); | |
1536 | mt7530_write(priv, MT753X_MIRROR_REG(priv->id), val); | |
37feab60 DQ |
1537 | } |
1538 | } | |
1539 | ||
b8f126a8 | 1540 | static enum dsa_tag_protocol |
4d776482 FF |
1541 | mtk_get_tag_protocol(struct dsa_switch *ds, int port, |
1542 | enum dsa_tag_protocol mp) | |
b8f126a8 SW |
1543 | { |
1544 | struct mt7530_priv *priv = ds->priv; | |
1545 | ||
5ed4e3eb | 1546 | if (port != MT7530_CPU_PORT) { |
b8f126a8 SW |
1547 | dev_warn(priv->dev, |
1548 | "port not matched with tagging CPU port\n"); | |
1549 | return DSA_TAG_PROTO_NONE; | |
1550 | } else { | |
1551 | return DSA_TAG_PROTO_MTK; | |
1552 | } | |
1553 | } | |
1554 | ||
1555 | static int | |
1556 | mt7530_setup(struct dsa_switch *ds) | |
1557 | { | |
1558 | struct mt7530_priv *priv = ds->priv; | |
38f790a8 RD |
1559 | struct device_node *phy_node; |
1560 | struct device_node *mac_np; | |
b8f126a8 | 1561 | struct mt7530_dummy_poll p; |
38f790a8 | 1562 | phy_interface_t interface; |
ca366d6c RD |
1563 | struct device_node *dn; |
1564 | u32 id, val; | |
1565 | int ret, i; | |
b8f126a8 | 1566 | |
0abfd494 | 1567 | /* The parent node of master netdev which holds the common system |
b8f126a8 SW |
1568 | * controller also is the container for two GMACs nodes representing |
1569 | * as two netdev instances. | |
1570 | */ | |
68bb8ea8 | 1571 | dn = dsa_to_port(ds, MT7530_CPU_PORT)->master->dev.of_node->parent; |
0141792f | 1572 | ds->configure_vlan_while_not_filtering = true; |
b8f126a8 | 1573 | |
ddda1ac1 | 1574 | if (priv->id == ID_MT7530) { |
ddda1ac1 GU |
1575 | regulator_set_voltage(priv->core_pwr, 1000000, 1000000); |
1576 | ret = regulator_enable(priv->core_pwr); | |
1577 | if (ret < 0) { | |
1578 | dev_err(priv->dev, | |
1579 | "Failed to enable core power: %d\n", ret); | |
1580 | return ret; | |
1581 | } | |
b8f126a8 | 1582 | |
ddda1ac1 GU |
1583 | regulator_set_voltage(priv->io_pwr, 3300000, 3300000); |
1584 | ret = regulator_enable(priv->io_pwr); | |
1585 | if (ret < 0) { | |
1586 | dev_err(priv->dev, "Failed to enable io pwr: %d\n", | |
1587 | ret); | |
1588 | return ret; | |
1589 | } | |
b8f126a8 SW |
1590 | } |
1591 | ||
1592 | /* Reset whole chip through gpio pin or memory-mapped registers for | |
1593 | * different type of hardware | |
1594 | */ | |
1595 | if (priv->mcm) { | |
1596 | reset_control_assert(priv->rstc); | |
1597 | usleep_range(1000, 1100); | |
1598 | reset_control_deassert(priv->rstc); | |
1599 | } else { | |
1600 | gpiod_set_value_cansleep(priv->reset, 0); | |
1601 | usleep_range(1000, 1100); | |
1602 | gpiod_set_value_cansleep(priv->reset, 1); | |
1603 | } | |
1604 | ||
1605 | /* Waiting for MT7530 got to stable */ | |
1606 | INIT_MT7530_DUMMY_POLL(&p, priv, MT7530_HWTRAP); | |
1607 | ret = readx_poll_timeout(_mt7530_read, &p, val, val != 0, | |
1608 | 20, 1000000); | |
1609 | if (ret < 0) { | |
1610 | dev_err(priv->dev, "reset timeout\n"); | |
1611 | return ret; | |
1612 | } | |
1613 | ||
1614 | id = mt7530_read(priv, MT7530_CREV); | |
1615 | id >>= CHIP_NAME_SHIFT; | |
1616 | if (id != MT7530_ID) { | |
1617 | dev_err(priv->dev, "chip %x can't be supported\n", id); | |
1618 | return -ENODEV; | |
1619 | } | |
1620 | ||
1621 | /* Reset the switch through internal reset */ | |
1622 | mt7530_write(priv, MT7530_SYS_CTRL, | |
1623 | SYS_CTRL_PHY_RST | SYS_CTRL_SW_RST | | |
1624 | SYS_CTRL_REG_RST); | |
1625 | ||
1626 | /* Enable Port 6 only; P5 as GMAC5 which currently is not supported */ | |
1627 | val = mt7530_read(priv, MT7530_MHWTRAP); | |
1628 | val &= ~MHWTRAP_P6_DIS & ~MHWTRAP_PHY_ACCESS; | |
1629 | val |= MHWTRAP_MANUAL; | |
1630 | mt7530_write(priv, MT7530_MHWTRAP, val); | |
1631 | ||
ca366d6c RD |
1632 | priv->p6_interface = PHY_INTERFACE_MODE_NA; |
1633 | ||
b8f126a8 SW |
1634 | /* Enable and reset MIB counters */ |
1635 | mt7530_mib_reset(ds); | |
1636 | ||
b8f126a8 SW |
1637 | for (i = 0; i < MT7530_NUM_PORTS; i++) { |
1638 | /* Disable forwarding by default on all ports */ | |
1639 | mt7530_rmw(priv, MT7530_PCR_P(i), PCR_MATRIX_MASK, | |
1640 | PCR_MATRIX_CLR); | |
1641 | ||
0ce0c3cd AD |
1642 | if (dsa_is_cpu_port(ds, i)) { |
1643 | ret = mt753x_cpu_port_enable(ds, i); | |
1644 | if (ret) | |
1645 | return ret; | |
1646 | } else | |
75104db0 | 1647 | mt7530_port_disable(ds, i); |
e045124e DQ |
1648 | |
1649 | /* Enable consistent egress tag */ | |
1650 | mt7530_rmw(priv, MT7530_PVC_P(i), PVC_EG_TAG_MASK, | |
1651 | PVC_EG_TAG(MT7530_VLAN_EG_CONSISTENT)); | |
b8f126a8 SW |
1652 | } |
1653 | ||
38f790a8 RD |
1654 | /* Setup port 5 */ |
1655 | priv->p5_intf_sel = P5_DISABLED; | |
1656 | interface = PHY_INTERFACE_MODE_NA; | |
1657 | ||
1658 | if (!dsa_is_unused_port(ds, 5)) { | |
1659 | priv->p5_intf_sel = P5_INTF_SEL_GMAC5; | |
0c65b2b9 AL |
1660 | ret = of_get_phy_mode(dsa_to_port(ds, 5)->dn, &interface); |
1661 | if (ret && ret != -ENODEV) | |
1662 | return ret; | |
38f790a8 RD |
1663 | } else { |
1664 | /* Scan the ethernet nodes. look for GMAC1, lookup used phy */ | |
1665 | for_each_child_of_node(dn, mac_np) { | |
1666 | if (!of_device_is_compatible(mac_np, | |
1667 | "mediatek,eth-mac")) | |
1668 | continue; | |
1669 | ||
1670 | ret = of_property_read_u32(mac_np, "reg", &id); | |
1671 | if (ret < 0 || id != 1) | |
1672 | continue; | |
1673 | ||
1674 | phy_node = of_parse_phandle(mac_np, "phy-handle", 0); | |
0452800f CG |
1675 | if (!phy_node) |
1676 | continue; | |
1677 | ||
38f790a8 | 1678 | if (phy_node->parent == priv->dev->of_node->parent) { |
0c65b2b9 | 1679 | ret = of_get_phy_mode(mac_np, &interface); |
8e4efd47 SP |
1680 | if (ret && ret != -ENODEV) { |
1681 | of_node_put(mac_np); | |
0c65b2b9 | 1682 | return ret; |
8e4efd47 | 1683 | } |
38f790a8 RD |
1684 | id = of_mdio_parse_addr(ds->dev, phy_node); |
1685 | if (id == 0) | |
1686 | priv->p5_intf_sel = P5_INTF_SEL_PHY_P0; | |
1687 | if (id == 4) | |
1688 | priv->p5_intf_sel = P5_INTF_SEL_PHY_P4; | |
1689 | } | |
8e4efd47 | 1690 | of_node_put(mac_np); |
38f790a8 RD |
1691 | of_node_put(phy_node); |
1692 | break; | |
1693 | } | |
1694 | } | |
1695 | ||
1696 | mt7530_setup_port5(ds, interface); | |
1697 | ||
b8f126a8 | 1698 | /* Flush the FDB table */ |
18bd5949 | 1699 | ret = mt7530_fdb_cmd(priv, MT7530_FDB_FLUSH, NULL); |
b8f126a8 SW |
1700 | if (ret < 0) |
1701 | return ret; | |
1702 | ||
1703 | return 0; | |
1704 | } | |
1705 | ||
c288575f LC |
1706 | static int |
1707 | mt7531_setup(struct dsa_switch *ds) | |
1708 | { | |
1709 | struct mt7530_priv *priv = ds->priv; | |
1710 | struct mt7530_dummy_poll p; | |
1711 | u32 val, id; | |
1712 | int ret, i; | |
1713 | ||
1714 | /* Reset whole chip through gpio pin or memory-mapped registers for | |
1715 | * different type of hardware | |
1716 | */ | |
1717 | if (priv->mcm) { | |
1718 | reset_control_assert(priv->rstc); | |
1719 | usleep_range(1000, 1100); | |
1720 | reset_control_deassert(priv->rstc); | |
1721 | } else { | |
1722 | gpiod_set_value_cansleep(priv->reset, 0); | |
1723 | usleep_range(1000, 1100); | |
1724 | gpiod_set_value_cansleep(priv->reset, 1); | |
1725 | } | |
1726 | ||
1727 | /* Waiting for MT7530 got to stable */ | |
1728 | INIT_MT7530_DUMMY_POLL(&p, priv, MT7530_HWTRAP); | |
1729 | ret = readx_poll_timeout(_mt7530_read, &p, val, val != 0, | |
1730 | 20, 1000000); | |
1731 | if (ret < 0) { | |
1732 | dev_err(priv->dev, "reset timeout\n"); | |
1733 | return ret; | |
1734 | } | |
1735 | ||
1736 | id = mt7530_read(priv, MT7531_CREV); | |
1737 | id >>= CHIP_NAME_SHIFT; | |
1738 | ||
1739 | if (id != MT7531_ID) { | |
1740 | dev_err(priv->dev, "chip %x can't be supported\n", id); | |
1741 | return -ENODEV; | |
1742 | } | |
1743 | ||
1744 | /* Reset the switch through internal reset */ | |
1745 | mt7530_write(priv, MT7530_SYS_CTRL, | |
1746 | SYS_CTRL_PHY_RST | SYS_CTRL_SW_RST | | |
1747 | SYS_CTRL_REG_RST); | |
1748 | ||
1749 | if (mt7531_dual_sgmii_supported(priv)) { | |
1750 | priv->p5_intf_sel = P5_INTF_SEL_GMAC5_SGMII; | |
1751 | ||
1752 | /* Let ds->slave_mii_bus be able to access external phy. */ | |
1753 | mt7530_rmw(priv, MT7531_GPIO_MODE1, MT7531_GPIO11_RG_RXD2_MASK, | |
1754 | MT7531_EXT_P_MDC_11); | |
1755 | mt7530_rmw(priv, MT7531_GPIO_MODE1, MT7531_GPIO12_RG_RXD3_MASK, | |
1756 | MT7531_EXT_P_MDIO_12); | |
1757 | } else { | |
1758 | priv->p5_intf_sel = P5_INTF_SEL_GMAC5; | |
1759 | } | |
1760 | dev_dbg(ds->dev, "P5 support %s interface\n", | |
1761 | p5_intf_modes(priv->p5_intf_sel)); | |
1762 | ||
1763 | mt7530_rmw(priv, MT7531_GPIO_MODE0, MT7531_GPIO0_MASK, | |
1764 | MT7531_GPIO0_INTERRUPT); | |
1765 | ||
1766 | /* Let phylink decide the interface later. */ | |
1767 | priv->p5_interface = PHY_INTERFACE_MODE_NA; | |
1768 | priv->p6_interface = PHY_INTERFACE_MODE_NA; | |
1769 | ||
1770 | /* Enable PHY core PLL, since phy_device has not yet been created | |
1771 | * provided for phy_[read,write]_mmd_indirect is called, we provide | |
1772 | * our own mt7531_ind_mmd_phy_[read,write] to complete this | |
1773 | * function. | |
1774 | */ | |
1775 | val = mt7531_ind_c45_phy_read(priv, MT753X_CTRL_PHY_ADDR, | |
1776 | MDIO_MMD_VEND2, CORE_PLL_GROUP4); | |
1777 | val |= MT7531_PHY_PLL_BYPASS_MODE; | |
1778 | val &= ~MT7531_PHY_PLL_OFF; | |
1779 | mt7531_ind_c45_phy_write(priv, MT753X_CTRL_PHY_ADDR, MDIO_MMD_VEND2, | |
1780 | CORE_PLL_GROUP4, val); | |
1781 | ||
1782 | /* BPDU to CPU port */ | |
1783 | mt7530_rmw(priv, MT7531_CFC, MT7531_CPU_PMAP_MASK, | |
1784 | BIT(MT7530_CPU_PORT)); | |
1785 | mt7530_rmw(priv, MT753X_BPC, MT753X_BPDU_PORT_FW_MASK, | |
1786 | MT753X_BPDU_CPU_ONLY); | |
1787 | ||
1788 | /* Enable and reset MIB counters */ | |
1789 | mt7530_mib_reset(ds); | |
1790 | ||
1791 | for (i = 0; i < MT7530_NUM_PORTS; i++) { | |
1792 | /* Disable forwarding by default on all ports */ | |
1793 | mt7530_rmw(priv, MT7530_PCR_P(i), PCR_MATRIX_MASK, | |
1794 | PCR_MATRIX_CLR); | |
1795 | ||
1796 | mt7530_set(priv, MT7531_DBG_CNT(i), MT7531_DIS_CLR); | |
1797 | ||
0ce0c3cd AD |
1798 | if (dsa_is_cpu_port(ds, i)) { |
1799 | ret = mt753x_cpu_port_enable(ds, i); | |
1800 | if (ret) | |
1801 | return ret; | |
1802 | } else | |
c288575f LC |
1803 | mt7530_port_disable(ds, i); |
1804 | ||
1805 | /* Enable consistent egress tag */ | |
1806 | mt7530_rmw(priv, MT7530_PVC_P(i), PVC_EG_TAG_MASK, | |
1807 | PVC_EG_TAG(MT7530_VLAN_EG_CONSISTENT)); | |
1808 | } | |
1809 | ||
1810 | ds->configure_vlan_while_not_filtering = true; | |
1811 | ||
1812 | /* Flush the FDB table */ | |
1813 | ret = mt7530_fdb_cmd(priv, MT7530_FDB_FLUSH, NULL); | |
1814 | if (ret < 0) | |
1815 | return ret; | |
1816 | ||
1817 | return 0; | |
1818 | } | |
1819 | ||
88bdef8b LC |
1820 | static bool |
1821 | mt7530_phy_mode_supported(struct dsa_switch *ds, int port, | |
1822 | const struct phylink_link_state *state) | |
ca366d6c RD |
1823 | { |
1824 | struct mt7530_priv *priv = ds->priv; | |
ca366d6c RD |
1825 | |
1826 | switch (port) { | |
88bdef8b | 1827 | case 0 ... 4: /* Internal phy */ |
ca366d6c | 1828 | if (state->interface != PHY_INTERFACE_MODE_GMII) |
88bdef8b | 1829 | return false; |
ca366d6c | 1830 | break; |
38f790a8 | 1831 | case 5: /* 2nd cpu port with phy of port 0 or 4 / external phy */ |
38f790a8 RD |
1832 | if (!phy_interface_mode_is_rgmii(state->interface) && |
1833 | state->interface != PHY_INTERFACE_MODE_MII && | |
1834 | state->interface != PHY_INTERFACE_MODE_GMII) | |
88bdef8b LC |
1835 | return false; |
1836 | break; | |
1837 | case 6: /* 1st cpu port */ | |
1838 | if (state->interface != PHY_INTERFACE_MODE_RGMII && | |
1839 | state->interface != PHY_INTERFACE_MODE_TRGMII) | |
1840 | return false; | |
1841 | break; | |
1842 | default: | |
1843 | dev_err(priv->dev, "%s: unsupported port: %i\n", __func__, | |
1844 | port); | |
1845 | return false; | |
1846 | } | |
1847 | ||
1848 | return true; | |
1849 | } | |
1850 | ||
c288575f LC |
1851 | static bool mt7531_is_rgmii_port(struct mt7530_priv *priv, u32 port) |
1852 | { | |
1853 | return (port == 5) && (priv->p5_intf_sel != P5_INTF_SEL_GMAC5_SGMII); | |
1854 | } | |
1855 | ||
1856 | static bool | |
1857 | mt7531_phy_mode_supported(struct dsa_switch *ds, int port, | |
1858 | const struct phylink_link_state *state) | |
1859 | { | |
1860 | struct mt7530_priv *priv = ds->priv; | |
1861 | ||
1862 | switch (port) { | |
1863 | case 0 ... 4: /* Internal phy */ | |
1864 | if (state->interface != PHY_INTERFACE_MODE_GMII) | |
1865 | return false; | |
1866 | break; | |
1867 | case 5: /* 2nd cpu port supports either rgmii or sgmii/8023z */ | |
1868 | if (mt7531_is_rgmii_port(priv, port)) | |
1869 | return phy_interface_mode_is_rgmii(state->interface); | |
1870 | fallthrough; | |
1871 | case 6: /* 1st cpu port supports sgmii/8023z only */ | |
1872 | if (state->interface != PHY_INTERFACE_MODE_SGMII && | |
1873 | !phy_interface_mode_is_8023z(state->interface)) | |
1874 | return false; | |
1875 | break; | |
1876 | default: | |
1877 | dev_err(priv->dev, "%s: unsupported port: %i\n", __func__, | |
1878 | port); | |
1879 | return false; | |
1880 | } | |
1881 | ||
1882 | return true; | |
1883 | } | |
1884 | ||
88bdef8b LC |
1885 | static bool |
1886 | mt753x_phy_mode_supported(struct dsa_switch *ds, int port, | |
1887 | const struct phylink_link_state *state) | |
1888 | { | |
1889 | struct mt7530_priv *priv = ds->priv; | |
1890 | ||
1891 | return priv->info->phy_mode_supported(ds, port, state); | |
1892 | } | |
1893 | ||
1894 | static int | |
1895 | mt753x_pad_setup(struct dsa_switch *ds, const struct phylink_link_state *state) | |
1896 | { | |
1897 | struct mt7530_priv *priv = ds->priv; | |
1898 | ||
1899 | return priv->info->pad_setup(ds, state->interface); | |
1900 | } | |
1901 | ||
1902 | static int | |
1903 | mt7530_mac_config(struct dsa_switch *ds, int port, unsigned int mode, | |
1904 | phy_interface_t interface) | |
1905 | { | |
1906 | struct mt7530_priv *priv = ds->priv; | |
1907 | ||
1908 | /* Only need to setup port5. */ | |
1909 | if (port != 5) | |
1910 | return 0; | |
1911 | ||
1912 | mt7530_setup_port5(priv->ds, interface); | |
1913 | ||
1914 | return 0; | |
1915 | } | |
1916 | ||
c288575f LC |
1917 | static int mt7531_rgmii_setup(struct mt7530_priv *priv, u32 port, |
1918 | phy_interface_t interface, | |
1919 | struct phy_device *phydev) | |
1920 | { | |
1921 | u32 val; | |
1922 | ||
1923 | if (!mt7531_is_rgmii_port(priv, port)) { | |
1924 | dev_err(priv->dev, "RGMII mode is not available for port %d\n", | |
1925 | port); | |
1926 | return -EINVAL; | |
1927 | } | |
1928 | ||
1929 | val = mt7530_read(priv, MT7531_CLKGEN_CTRL); | |
1930 | val |= GP_CLK_EN; | |
1931 | val &= ~GP_MODE_MASK; | |
1932 | val |= GP_MODE(MT7531_GP_MODE_RGMII); | |
1933 | val &= ~CLK_SKEW_IN_MASK; | |
1934 | val |= CLK_SKEW_IN(MT7531_CLK_SKEW_NO_CHG); | |
1935 | val &= ~CLK_SKEW_OUT_MASK; | |
1936 | val |= CLK_SKEW_OUT(MT7531_CLK_SKEW_NO_CHG); | |
1937 | val |= TXCLK_NO_REVERSE | RXCLK_NO_DELAY; | |
1938 | ||
1939 | /* Do not adjust rgmii delay when vendor phy driver presents. */ | |
1940 | if (!phydev || phy_driver_is_genphy(phydev)) { | |
1941 | val &= ~(TXCLK_NO_REVERSE | RXCLK_NO_DELAY); | |
1942 | switch (interface) { | |
1943 | case PHY_INTERFACE_MODE_RGMII: | |
1944 | val |= TXCLK_NO_REVERSE; | |
1945 | val |= RXCLK_NO_DELAY; | |
1946 | break; | |
1947 | case PHY_INTERFACE_MODE_RGMII_RXID: | |
1948 | val |= TXCLK_NO_REVERSE; | |
1949 | break; | |
1950 | case PHY_INTERFACE_MODE_RGMII_TXID: | |
1951 | val |= RXCLK_NO_DELAY; | |
1952 | break; | |
1953 | case PHY_INTERFACE_MODE_RGMII_ID: | |
1954 | break; | |
1955 | default: | |
1956 | return -EINVAL; | |
1957 | } | |
1958 | } | |
1959 | mt7530_write(priv, MT7531_CLKGEN_CTRL, val); | |
1960 | ||
1961 | return 0; | |
1962 | } | |
1963 | ||
1964 | static void mt7531_sgmii_validate(struct mt7530_priv *priv, int port, | |
1965 | unsigned long *supported) | |
1966 | { | |
1967 | /* Port5 supports ethier RGMII or SGMII. | |
1968 | * Port6 supports SGMII only. | |
1969 | */ | |
1970 | switch (port) { | |
1971 | case 5: | |
1972 | if (mt7531_is_rgmii_port(priv, port)) | |
1973 | break; | |
1974 | fallthrough; | |
1975 | case 6: | |
1976 | phylink_set(supported, 1000baseX_Full); | |
1977 | phylink_set(supported, 2500baseX_Full); | |
1978 | phylink_set(supported, 2500baseT_Full); | |
1979 | } | |
1980 | } | |
1981 | ||
1982 | static void | |
1983 | mt7531_sgmii_link_up_force(struct dsa_switch *ds, int port, | |
1984 | unsigned int mode, phy_interface_t interface, | |
1985 | int speed, int duplex) | |
1986 | { | |
1987 | struct mt7530_priv *priv = ds->priv; | |
1988 | unsigned int val; | |
1989 | ||
1990 | /* For adjusting speed and duplex of SGMII force mode. */ | |
1991 | if (interface != PHY_INTERFACE_MODE_SGMII || | |
1992 | phylink_autoneg_inband(mode)) | |
1993 | return; | |
1994 | ||
1995 | /* SGMII force mode setting */ | |
1996 | val = mt7530_read(priv, MT7531_SGMII_MODE(port)); | |
1997 | val &= ~MT7531_SGMII_IF_MODE_MASK; | |
1998 | ||
1999 | switch (speed) { | |
2000 | case SPEED_10: | |
2001 | val |= MT7531_SGMII_FORCE_SPEED_10; | |
2002 | break; | |
2003 | case SPEED_100: | |
2004 | val |= MT7531_SGMII_FORCE_SPEED_100; | |
2005 | break; | |
2006 | case SPEED_1000: | |
2007 | val |= MT7531_SGMII_FORCE_SPEED_1000; | |
2008 | break; | |
2009 | } | |
2010 | ||
2011 | /* MT7531 SGMII 1G force mode can only work in full duplex mode, | |
2012 | * no matter MT7531_SGMII_FORCE_HALF_DUPLEX is set or not. | |
2013 | */ | |
2014 | if ((speed == SPEED_10 || speed == SPEED_100) && | |
2015 | duplex != DUPLEX_FULL) | |
2016 | val |= MT7531_SGMII_FORCE_HALF_DUPLEX; | |
2017 | ||
2018 | mt7530_write(priv, MT7531_SGMII_MODE(port), val); | |
2019 | } | |
2020 | ||
2021 | static bool mt753x_is_mac_port(u32 port) | |
2022 | { | |
2023 | return (port == 5 || port == 6); | |
2024 | } | |
2025 | ||
2026 | static int mt7531_sgmii_setup_mode_force(struct mt7530_priv *priv, u32 port, | |
2027 | phy_interface_t interface) | |
2028 | { | |
2029 | u32 val; | |
2030 | ||
2031 | if (!mt753x_is_mac_port(port)) | |
2032 | return -EINVAL; | |
2033 | ||
2034 | mt7530_set(priv, MT7531_QPHY_PWR_STATE_CTRL(port), | |
2035 | MT7531_SGMII_PHYA_PWD); | |
2036 | ||
2037 | val = mt7530_read(priv, MT7531_PHYA_CTRL_SIGNAL3(port)); | |
2038 | val &= ~MT7531_RG_TPHY_SPEED_MASK; | |
2039 | /* Setup 2.5 times faster clock for 2.5Gbps data speeds with 10B/8B | |
2040 | * encoding. | |
2041 | */ | |
2042 | val |= (interface == PHY_INTERFACE_MODE_2500BASEX) ? | |
2043 | MT7531_RG_TPHY_SPEED_3_125G : MT7531_RG_TPHY_SPEED_1_25G; | |
2044 | mt7530_write(priv, MT7531_PHYA_CTRL_SIGNAL3(port), val); | |
2045 | ||
2046 | mt7530_clear(priv, MT7531_PCS_CONTROL_1(port), MT7531_SGMII_AN_ENABLE); | |
2047 | ||
2048 | /* MT7531 SGMII 1G and 2.5G force mode can only work in full duplex | |
2049 | * mode, no matter MT7531_SGMII_FORCE_HALF_DUPLEX is set or not. | |
2050 | */ | |
2051 | mt7530_rmw(priv, MT7531_SGMII_MODE(port), | |
2052 | MT7531_SGMII_IF_MODE_MASK | MT7531_SGMII_REMOTE_FAULT_DIS, | |
2053 | MT7531_SGMII_FORCE_SPEED_1000); | |
2054 | ||
2055 | mt7530_write(priv, MT7531_QPHY_PWR_STATE_CTRL(port), 0); | |
2056 | ||
2057 | return 0; | |
2058 | } | |
2059 | ||
2060 | static int mt7531_sgmii_setup_mode_an(struct mt7530_priv *priv, int port, | |
2061 | phy_interface_t interface) | |
2062 | { | |
2063 | if (!mt753x_is_mac_port(port)) | |
2064 | return -EINVAL; | |
2065 | ||
2066 | mt7530_set(priv, MT7531_QPHY_PWR_STATE_CTRL(port), | |
2067 | MT7531_SGMII_PHYA_PWD); | |
2068 | ||
2069 | mt7530_rmw(priv, MT7531_PHYA_CTRL_SIGNAL3(port), | |
2070 | MT7531_RG_TPHY_SPEED_MASK, MT7531_RG_TPHY_SPEED_1_25G); | |
2071 | ||
2072 | mt7530_set(priv, MT7531_SGMII_MODE(port), | |
2073 | MT7531_SGMII_REMOTE_FAULT_DIS | | |
2074 | MT7531_SGMII_SPEED_DUPLEX_AN); | |
2075 | ||
2076 | mt7530_rmw(priv, MT7531_PCS_SPEED_ABILITY(port), | |
2077 | MT7531_SGMII_TX_CONFIG_MASK, 1); | |
2078 | ||
2079 | mt7530_set(priv, MT7531_PCS_CONTROL_1(port), MT7531_SGMII_AN_ENABLE); | |
2080 | ||
2081 | mt7530_set(priv, MT7531_PCS_CONTROL_1(port), MT7531_SGMII_AN_RESTART); | |
2082 | ||
2083 | mt7530_write(priv, MT7531_QPHY_PWR_STATE_CTRL(port), 0); | |
2084 | ||
2085 | return 0; | |
2086 | } | |
2087 | ||
2088 | static void mt7531_sgmii_restart_an(struct dsa_switch *ds, int port) | |
2089 | { | |
2090 | struct mt7530_priv *priv = ds->priv; | |
2091 | u32 val; | |
2092 | ||
2093 | /* Only restart AN when AN is enabled */ | |
2094 | val = mt7530_read(priv, MT7531_PCS_CONTROL_1(port)); | |
2095 | if (val & MT7531_SGMII_AN_ENABLE) { | |
2096 | val |= MT7531_SGMII_AN_RESTART; | |
2097 | mt7530_write(priv, MT7531_PCS_CONTROL_1(port), val); | |
2098 | } | |
2099 | } | |
2100 | ||
2101 | static int | |
2102 | mt7531_mac_config(struct dsa_switch *ds, int port, unsigned int mode, | |
2103 | phy_interface_t interface) | |
2104 | { | |
2105 | struct mt7530_priv *priv = ds->priv; | |
2106 | struct phy_device *phydev; | |
2107 | struct dsa_port *dp; | |
2108 | ||
2109 | if (!mt753x_is_mac_port(port)) { | |
2110 | dev_err(priv->dev, "port %d is not a MAC port\n", port); | |
2111 | return -EINVAL; | |
2112 | } | |
2113 | ||
2114 | switch (interface) { | |
2115 | case PHY_INTERFACE_MODE_RGMII: | |
2116 | case PHY_INTERFACE_MODE_RGMII_ID: | |
2117 | case PHY_INTERFACE_MODE_RGMII_RXID: | |
2118 | case PHY_INTERFACE_MODE_RGMII_TXID: | |
2119 | dp = dsa_to_port(ds, port); | |
2120 | phydev = dp->slave->phydev; | |
2121 | return mt7531_rgmii_setup(priv, port, interface, phydev); | |
2122 | case PHY_INTERFACE_MODE_SGMII: | |
2123 | return mt7531_sgmii_setup_mode_an(priv, port, interface); | |
2124 | case PHY_INTERFACE_MODE_NA: | |
2125 | case PHY_INTERFACE_MODE_1000BASEX: | |
2126 | case PHY_INTERFACE_MODE_2500BASEX: | |
2127 | if (phylink_autoneg_inband(mode)) | |
2128 | return -EINVAL; | |
2129 | ||
2130 | return mt7531_sgmii_setup_mode_force(priv, port, interface); | |
2131 | default: | |
2132 | return -EINVAL; | |
2133 | } | |
2134 | ||
2135 | return -EINVAL; | |
2136 | } | |
2137 | ||
88bdef8b LC |
2138 | static int |
2139 | mt753x_mac_config(struct dsa_switch *ds, int port, unsigned int mode, | |
2140 | const struct phylink_link_state *state) | |
2141 | { | |
2142 | struct mt7530_priv *priv = ds->priv; | |
2143 | ||
2144 | return priv->info->mac_port_config(ds, port, mode, state->interface); | |
2145 | } | |
2146 | ||
2147 | static void | |
2148 | mt753x_phylink_mac_config(struct dsa_switch *ds, int port, unsigned int mode, | |
2149 | const struct phylink_link_state *state) | |
2150 | { | |
2151 | struct mt7530_priv *priv = ds->priv; | |
2152 | u32 mcr_cur, mcr_new; | |
2153 | ||
2154 | if (!mt753x_phy_mode_supported(ds, port, state)) | |
2155 | goto unsupported; | |
2156 | ||
2157 | switch (port) { | |
2158 | case 0 ... 4: /* Internal phy */ | |
2159 | if (state->interface != PHY_INTERFACE_MODE_GMII) | |
2160 | goto unsupported; | |
2161 | break; | |
2162 | case 5: /* 2nd cpu port with phy of port 0 or 4 / external phy */ | |
2163 | if (priv->p5_interface == state->interface) | |
2164 | break; | |
2165 | ||
2166 | if (mt753x_mac_config(ds, port, mode, state) < 0) | |
2167 | goto unsupported; | |
38f790a8 | 2168 | |
c288575f LC |
2169 | if (priv->p5_intf_sel != P5_DISABLED) |
2170 | priv->p5_interface = state->interface; | |
38f790a8 | 2171 | break; |
ca366d6c RD |
2172 | case 6: /* 1st cpu port */ |
2173 | if (priv->p6_interface == state->interface) | |
2174 | break; | |
2175 | ||
88bdef8b | 2176 | mt753x_pad_setup(ds, state); |
ca366d6c | 2177 | |
88bdef8b LC |
2178 | if (mt753x_mac_config(ds, port, mode, state) < 0) |
2179 | goto unsupported; | |
ca366d6c | 2180 | |
ca366d6c RD |
2181 | priv->p6_interface = state->interface; |
2182 | break; | |
2183 | default: | |
88bdef8b LC |
2184 | unsupported: |
2185 | dev_err(ds->dev, "%s: unsupported %s port: %i\n", | |
2186 | __func__, phy_modes(state->interface), port); | |
ca366d6c RD |
2187 | return; |
2188 | } | |
2189 | ||
c288575f LC |
2190 | if (phylink_autoneg_inband(mode) && |
2191 | state->interface != PHY_INTERFACE_MODE_SGMII) { | |
ca366d6c RD |
2192 | dev_err(ds->dev, "%s: in-band negotiation unsupported\n", |
2193 | __func__); | |
2194 | return; | |
2195 | } | |
2196 | ||
2197 | mcr_cur = mt7530_read(priv, MT7530_PMCR_P(port)); | |
2198 | mcr_new = mcr_cur; | |
1d01145f | 2199 | mcr_new &= ~PMCR_LINK_SETTINGS_MASK; |
ca366d6c | 2200 | mcr_new |= PMCR_IFG_XMIT(1) | PMCR_MAC_MODE | PMCR_BACKOFF_EN | |
c288575f | 2201 | PMCR_BACKPR_EN | PMCR_FORCE_MODE_ID(priv->id); |
ca366d6c | 2202 | |
38f790a8 RD |
2203 | /* Are we connected to external phy */ |
2204 | if (port == 5 && dsa_is_user_port(ds, 5)) | |
2205 | mcr_new |= PMCR_EXT_PHY; | |
2206 | ||
ca366d6c RD |
2207 | if (mcr_new != mcr_cur) |
2208 | mt7530_write(priv, MT7530_PMCR_P(port), mcr_new); | |
2209 | } | |
2210 | ||
c288575f LC |
2211 | static void |
2212 | mt753x_phylink_mac_an_restart(struct dsa_switch *ds, int port) | |
2213 | { | |
2214 | struct mt7530_priv *priv = ds->priv; | |
2215 | ||
2216 | if (!priv->info->mac_pcs_an_restart) | |
2217 | return; | |
2218 | ||
2219 | priv->info->mac_pcs_an_restart(ds, port); | |
2220 | } | |
2221 | ||
2222 | static void mt753x_phylink_mac_link_down(struct dsa_switch *ds, int port, | |
ca366d6c RD |
2223 | unsigned int mode, |
2224 | phy_interface_t interface) | |
2225 | { | |
2226 | struct mt7530_priv *priv = ds->priv; | |
2227 | ||
1d01145f | 2228 | mt7530_clear(priv, MT7530_PMCR_P(port), PMCR_LINK_SETTINGS_MASK); |
ca366d6c RD |
2229 | } |
2230 | ||
c288575f LC |
2231 | static void mt753x_mac_pcs_link_up(struct dsa_switch *ds, int port, |
2232 | unsigned int mode, phy_interface_t interface, | |
2233 | int speed, int duplex) | |
2234 | { | |
2235 | struct mt7530_priv *priv = ds->priv; | |
2236 | ||
2237 | if (!priv->info->mac_pcs_link_up) | |
2238 | return; | |
2239 | ||
2240 | priv->info->mac_pcs_link_up(ds, port, mode, interface, speed, duplex); | |
2241 | } | |
2242 | ||
2243 | static void mt753x_phylink_mac_link_up(struct dsa_switch *ds, int port, | |
ca366d6c RD |
2244 | unsigned int mode, |
2245 | phy_interface_t interface, | |
5b502a7b RK |
2246 | struct phy_device *phydev, |
2247 | int speed, int duplex, | |
2248 | bool tx_pause, bool rx_pause) | |
ca366d6c RD |
2249 | { |
2250 | struct mt7530_priv *priv = ds->priv; | |
1d01145f RD |
2251 | u32 mcr; |
2252 | ||
c288575f LC |
2253 | mt753x_mac_pcs_link_up(ds, port, mode, interface, speed, duplex); |
2254 | ||
1d01145f RD |
2255 | mcr = PMCR_RX_EN | PMCR_TX_EN | PMCR_FORCE_LNK; |
2256 | ||
c288575f LC |
2257 | /* MT753x MAC works in 1G full duplex mode for all up-clocked |
2258 | * variants. | |
2259 | */ | |
2260 | if (interface == PHY_INTERFACE_MODE_TRGMII || | |
2261 | (phy_interface_mode_is_8023z(interface))) { | |
2262 | speed = SPEED_1000; | |
2263 | duplex = DUPLEX_FULL; | |
2264 | } | |
2265 | ||
1d01145f RD |
2266 | switch (speed) { |
2267 | case SPEED_1000: | |
2268 | mcr |= PMCR_FORCE_SPEED_1000; | |
2269 | break; | |
2270 | case SPEED_100: | |
2271 | mcr |= PMCR_FORCE_SPEED_100; | |
2272 | break; | |
2273 | } | |
2274 | if (duplex == DUPLEX_FULL) { | |
2275 | mcr |= PMCR_FORCE_FDX; | |
2276 | if (tx_pause) | |
2277 | mcr |= PMCR_TX_FC_EN; | |
2278 | if (rx_pause) | |
2279 | mcr |= PMCR_RX_FC_EN; | |
2280 | } | |
ca366d6c | 2281 | |
1d01145f | 2282 | mt7530_set(priv, MT7530_PMCR_P(port), mcr); |
ca366d6c RD |
2283 | } |
2284 | ||
c288575f LC |
2285 | static int |
2286 | mt7531_cpu_port_config(struct dsa_switch *ds, int port) | |
2287 | { | |
2288 | struct mt7530_priv *priv = ds->priv; | |
2289 | phy_interface_t interface; | |
2290 | int speed; | |
0ce0c3cd | 2291 | int ret; |
c288575f LC |
2292 | |
2293 | switch (port) { | |
2294 | case 5: | |
2295 | if (mt7531_is_rgmii_port(priv, port)) | |
2296 | interface = PHY_INTERFACE_MODE_RGMII; | |
2297 | else | |
2298 | interface = PHY_INTERFACE_MODE_2500BASEX; | |
2299 | ||
2300 | priv->p5_interface = interface; | |
2301 | break; | |
2302 | case 6: | |
2303 | interface = PHY_INTERFACE_MODE_2500BASEX; | |
2304 | ||
2305 | mt7531_pad_setup(ds, interface); | |
2306 | ||
2307 | priv->p6_interface = interface; | |
2308 | break; | |
0ce0c3cd AD |
2309 | default: |
2310 | return -EINVAL; | |
c288575f LC |
2311 | } |
2312 | ||
2313 | if (interface == PHY_INTERFACE_MODE_2500BASEX) | |
2314 | speed = SPEED_2500; | |
2315 | else | |
2316 | speed = SPEED_1000; | |
2317 | ||
0ce0c3cd AD |
2318 | ret = mt7531_mac_config(ds, port, MLO_AN_FIXED, interface); |
2319 | if (ret) | |
2320 | return ret; | |
c288575f LC |
2321 | mt7530_write(priv, MT7530_PMCR_P(port), |
2322 | PMCR_CPU_PORT_SETTING(priv->id)); | |
2323 | mt753x_phylink_mac_link_up(ds, port, MLO_AN_FIXED, interface, NULL, | |
2324 | speed, DUPLEX_FULL, true, true); | |
2325 | ||
2326 | return 0; | |
2327 | } | |
2328 | ||
88bdef8b LC |
2329 | static void |
2330 | mt7530_mac_port_validate(struct dsa_switch *ds, int port, | |
2331 | unsigned long *supported) | |
2332 | { | |
2333 | if (port == 5) | |
2334 | phylink_set(supported, 1000baseX_Full); | |
2335 | } | |
2336 | ||
c288575f LC |
2337 | static void mt7531_mac_port_validate(struct dsa_switch *ds, int port, |
2338 | unsigned long *supported) | |
2339 | { | |
2340 | struct mt7530_priv *priv = ds->priv; | |
2341 | ||
2342 | mt7531_sgmii_validate(priv, port, supported); | |
2343 | } | |
2344 | ||
88bdef8b LC |
2345 | static void |
2346 | mt753x_phylink_validate(struct dsa_switch *ds, int port, | |
2347 | unsigned long *supported, | |
2348 | struct phylink_link_state *state) | |
ca366d6c RD |
2349 | { |
2350 | __ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = { 0, }; | |
88bdef8b | 2351 | struct mt7530_priv *priv = ds->priv; |
ca366d6c | 2352 | |
88bdef8b LC |
2353 | if (state->interface != PHY_INTERFACE_MODE_NA && |
2354 | !mt753x_phy_mode_supported(ds, port, state)) { | |
ca366d6c RD |
2355 | linkmode_zero(supported); |
2356 | return; | |
2357 | } | |
2358 | ||
2359 | phylink_set_port_modes(mask); | |
ca366d6c | 2360 | |
c288575f LC |
2361 | if (state->interface != PHY_INTERFACE_MODE_TRGMII || |
2362 | !phy_interface_mode_is_8023z(state->interface)) { | |
ca366d6c RD |
2363 | phylink_set(mask, 10baseT_Half); |
2364 | phylink_set(mask, 10baseT_Full); | |
2365 | phylink_set(mask, 100baseT_Half); | |
2366 | phylink_set(mask, 100baseT_Full); | |
88bdef8b | 2367 | phylink_set(mask, Autoneg); |
38f790a8 | 2368 | } |
ca366d6c | 2369 | |
88bdef8b LC |
2370 | /* This switch only supports 1G full-duplex. */ |
2371 | if (state->interface != PHY_INTERFACE_MODE_MII) | |
2372 | phylink_set(mask, 1000baseT_Full); | |
2373 | ||
2374 | priv->info->mac_port_validate(ds, port, mask); | |
2375 | ||
ca366d6c RD |
2376 | phylink_set(mask, Pause); |
2377 | phylink_set(mask, Asym_Pause); | |
2378 | ||
2379 | linkmode_and(supported, supported, mask); | |
2380 | linkmode_and(state->advertising, state->advertising, mask); | |
c288575f LC |
2381 | |
2382 | /* We can only operate at 2500BaseX or 1000BaseX. If requested | |
2383 | * to advertise both, only report advertising at 2500BaseX. | |
2384 | */ | |
2385 | phylink_helper_basex_speed(state); | |
ca366d6c RD |
2386 | } |
2387 | ||
2388 | static int | |
2389 | mt7530_phylink_mac_link_state(struct dsa_switch *ds, int port, | |
2390 | struct phylink_link_state *state) | |
2391 | { | |
2392 | struct mt7530_priv *priv = ds->priv; | |
2393 | u32 pmsr; | |
2394 | ||
2395 | if (port < 0 || port >= MT7530_NUM_PORTS) | |
2396 | return -EINVAL; | |
2397 | ||
2398 | pmsr = mt7530_read(priv, MT7530_PMSR_P(port)); | |
2399 | ||
2400 | state->link = (pmsr & PMSR_LINK); | |
2401 | state->an_complete = state->link; | |
2402 | state->duplex = !!(pmsr & PMSR_DPX); | |
2403 | ||
2404 | switch (pmsr & PMSR_SPEED_MASK) { | |
2405 | case PMSR_SPEED_10: | |
2406 | state->speed = SPEED_10; | |
2407 | break; | |
2408 | case PMSR_SPEED_100: | |
2409 | state->speed = SPEED_100; | |
2410 | break; | |
2411 | case PMSR_SPEED_1000: | |
2412 | state->speed = SPEED_1000; | |
2413 | break; | |
2414 | default: | |
2415 | state->speed = SPEED_UNKNOWN; | |
2416 | break; | |
2417 | } | |
2418 | ||
2419 | state->pause &= ~(MLO_PAUSE_RX | MLO_PAUSE_TX); | |
2420 | if (pmsr & PMSR_RX_FC) | |
2421 | state->pause |= MLO_PAUSE_RX; | |
2422 | if (pmsr & PMSR_TX_FC) | |
2423 | state->pause |= MLO_PAUSE_TX; | |
2424 | ||
2425 | return 1; | |
2426 | } | |
2427 | ||
c288575f LC |
2428 | static int |
2429 | mt7531_sgmii_pcs_get_state_an(struct mt7530_priv *priv, int port, | |
2430 | struct phylink_link_state *state) | |
2431 | { | |
2432 | u32 status, val; | |
2433 | u16 config_reg; | |
2434 | ||
2435 | status = mt7530_read(priv, MT7531_PCS_CONTROL_1(port)); | |
2436 | state->link = !!(status & MT7531_SGMII_LINK_STATUS); | |
2437 | if (state->interface == PHY_INTERFACE_MODE_SGMII && | |
2438 | (status & MT7531_SGMII_AN_ENABLE)) { | |
2439 | val = mt7530_read(priv, MT7531_PCS_SPEED_ABILITY(port)); | |
2440 | config_reg = val >> 16; | |
2441 | ||
2442 | switch (config_reg & LPA_SGMII_SPD_MASK) { | |
2443 | case LPA_SGMII_1000: | |
2444 | state->speed = SPEED_1000; | |
2445 | break; | |
2446 | case LPA_SGMII_100: | |
2447 | state->speed = SPEED_100; | |
2448 | break; | |
2449 | case LPA_SGMII_10: | |
2450 | state->speed = SPEED_10; | |
2451 | break; | |
2452 | default: | |
2453 | dev_err(priv->dev, "invalid sgmii PHY speed\n"); | |
2454 | state->link = false; | |
2455 | return -EINVAL; | |
2456 | } | |
2457 | ||
2458 | if (config_reg & LPA_SGMII_FULL_DUPLEX) | |
2459 | state->duplex = DUPLEX_FULL; | |
2460 | else | |
2461 | state->duplex = DUPLEX_HALF; | |
2462 | } | |
2463 | ||
2464 | return 0; | |
2465 | } | |
2466 | ||
2467 | static int | |
2468 | mt7531_phylink_mac_link_state(struct dsa_switch *ds, int port, | |
2469 | struct phylink_link_state *state) | |
2470 | { | |
2471 | struct mt7530_priv *priv = ds->priv; | |
2472 | ||
2473 | if (state->interface == PHY_INTERFACE_MODE_SGMII) | |
2474 | return mt7531_sgmii_pcs_get_state_an(priv, port, state); | |
2475 | ||
2476 | return -EOPNOTSUPP; | |
2477 | } | |
2478 | ||
88bdef8b LC |
2479 | static int |
2480 | mt753x_phylink_mac_link_state(struct dsa_switch *ds, int port, | |
2481 | struct phylink_link_state *state) | |
2482 | { | |
2483 | struct mt7530_priv *priv = ds->priv; | |
2484 | ||
2485 | return priv->info->mac_port_get_state(ds, port, state); | |
2486 | } | |
2487 | ||
2488 | static int | |
2489 | mt753x_setup(struct dsa_switch *ds) | |
2490 | { | |
2491 | struct mt7530_priv *priv = ds->priv; | |
2492 | ||
2493 | return priv->info->sw_setup(ds); | |
2494 | } | |
2495 | ||
2496 | static int | |
2497 | mt753x_phy_read(struct dsa_switch *ds, int port, int regnum) | |
2498 | { | |
2499 | struct mt7530_priv *priv = ds->priv; | |
2500 | ||
2501 | return priv->info->phy_read(ds, port, regnum); | |
2502 | } | |
2503 | ||
2504 | static int | |
2505 | mt753x_phy_write(struct dsa_switch *ds, int port, int regnum, u16 val) | |
2506 | { | |
2507 | struct mt7530_priv *priv = ds->priv; | |
2508 | ||
2509 | return priv->info->phy_write(ds, port, regnum, val); | |
2510 | } | |
2511 | ||
d78d6776 | 2512 | static const struct dsa_switch_ops mt7530_switch_ops = { |
b8f126a8 | 2513 | .get_tag_protocol = mtk_get_tag_protocol, |
88bdef8b | 2514 | .setup = mt753x_setup, |
b8f126a8 | 2515 | .get_strings = mt7530_get_strings, |
88bdef8b LC |
2516 | .phy_read = mt753x_phy_read, |
2517 | .phy_write = mt753x_phy_write, | |
b8f126a8 SW |
2518 | .get_ethtool_stats = mt7530_get_ethtool_stats, |
2519 | .get_sset_count = mt7530_get_sset_count, | |
b8f126a8 SW |
2520 | .port_enable = mt7530_port_enable, |
2521 | .port_disable = mt7530_port_disable, | |
2522 | .port_stp_state_set = mt7530_stp_state_set, | |
2523 | .port_bridge_join = mt7530_port_bridge_join, | |
2524 | .port_bridge_leave = mt7530_port_bridge_leave, | |
b8f126a8 SW |
2525 | .port_fdb_add = mt7530_port_fdb_add, |
2526 | .port_fdb_del = mt7530_port_fdb_del, | |
2527 | .port_fdb_dump = mt7530_port_fdb_dump, | |
83163f7d SW |
2528 | .port_vlan_filtering = mt7530_port_vlan_filtering, |
2529 | .port_vlan_prepare = mt7530_port_vlan_prepare, | |
2530 | .port_vlan_add = mt7530_port_vlan_add, | |
2531 | .port_vlan_del = mt7530_port_vlan_del, | |
c288575f LC |
2532 | .port_mirror_add = mt753x_port_mirror_add, |
2533 | .port_mirror_del = mt753x_port_mirror_del, | |
88bdef8b LC |
2534 | .phylink_validate = mt753x_phylink_validate, |
2535 | .phylink_mac_link_state = mt753x_phylink_mac_link_state, | |
2536 | .phylink_mac_config = mt753x_phylink_mac_config, | |
c288575f LC |
2537 | .phylink_mac_an_restart = mt753x_phylink_mac_an_restart, |
2538 | .phylink_mac_link_down = mt753x_phylink_mac_link_down, | |
2539 | .phylink_mac_link_up = mt753x_phylink_mac_link_up, | |
b8f126a8 SW |
2540 | }; |
2541 | ||
88bdef8b LC |
2542 | static const struct mt753x_info mt753x_table[] = { |
2543 | [ID_MT7621] = { | |
2544 | .id = ID_MT7621, | |
2545 | .sw_setup = mt7530_setup, | |
2546 | .phy_read = mt7530_phy_read, | |
2547 | .phy_write = mt7530_phy_write, | |
2548 | .pad_setup = mt7530_pad_clk_setup, | |
2549 | .phy_mode_supported = mt7530_phy_mode_supported, | |
2550 | .mac_port_validate = mt7530_mac_port_validate, | |
2551 | .mac_port_get_state = mt7530_phylink_mac_link_state, | |
2552 | .mac_port_config = mt7530_mac_config, | |
2553 | }, | |
2554 | [ID_MT7530] = { | |
2555 | .id = ID_MT7530, | |
2556 | .sw_setup = mt7530_setup, | |
2557 | .phy_read = mt7530_phy_read, | |
2558 | .phy_write = mt7530_phy_write, | |
2559 | .pad_setup = mt7530_pad_clk_setup, | |
2560 | .phy_mode_supported = mt7530_phy_mode_supported, | |
2561 | .mac_port_validate = mt7530_mac_port_validate, | |
2562 | .mac_port_get_state = mt7530_phylink_mac_link_state, | |
2563 | .mac_port_config = mt7530_mac_config, | |
2564 | }, | |
c288575f LC |
2565 | [ID_MT7531] = { |
2566 | .id = ID_MT7531, | |
2567 | .sw_setup = mt7531_setup, | |
2568 | .phy_read = mt7531_ind_phy_read, | |
2569 | .phy_write = mt7531_ind_phy_write, | |
2570 | .pad_setup = mt7531_pad_setup, | |
2571 | .cpu_port_config = mt7531_cpu_port_config, | |
2572 | .phy_mode_supported = mt7531_phy_mode_supported, | |
2573 | .mac_port_validate = mt7531_mac_port_validate, | |
2574 | .mac_port_get_state = mt7531_phylink_mac_link_state, | |
2575 | .mac_port_config = mt7531_mac_config, | |
2576 | .mac_pcs_an_restart = mt7531_sgmii_restart_an, | |
2577 | .mac_pcs_link_up = mt7531_sgmii_link_up_force, | |
2578 | }, | |
88bdef8b LC |
2579 | }; |
2580 | ||
ddda1ac1 | 2581 | static const struct of_device_id mt7530_of_match[] = { |
88bdef8b LC |
2582 | { .compatible = "mediatek,mt7621", .data = &mt753x_table[ID_MT7621], }, |
2583 | { .compatible = "mediatek,mt7530", .data = &mt753x_table[ID_MT7530], }, | |
c288575f | 2584 | { .compatible = "mediatek,mt7531", .data = &mt753x_table[ID_MT7531], }, |
ddda1ac1 GU |
2585 | { /* sentinel */ }, |
2586 | }; | |
2587 | MODULE_DEVICE_TABLE(of, mt7530_of_match); | |
2588 | ||
b8f126a8 SW |
2589 | static int |
2590 | mt7530_probe(struct mdio_device *mdiodev) | |
2591 | { | |
2592 | struct mt7530_priv *priv; | |
2593 | struct device_node *dn; | |
2594 | ||
2595 | dn = mdiodev->dev.of_node; | |
2596 | ||
2597 | priv = devm_kzalloc(&mdiodev->dev, sizeof(*priv), GFP_KERNEL); | |
2598 | if (!priv) | |
2599 | return -ENOMEM; | |
2600 | ||
7e99e347 | 2601 | priv->ds = devm_kzalloc(&mdiodev->dev, sizeof(*priv->ds), GFP_KERNEL); |
b8f126a8 SW |
2602 | if (!priv->ds) |
2603 | return -ENOMEM; | |
2604 | ||
7e99e347 VD |
2605 | priv->ds->dev = &mdiodev->dev; |
2606 | priv->ds->num_ports = DSA_MAX_PORTS; | |
2607 | ||
b8f126a8 SW |
2608 | /* Use medatek,mcm property to distinguish hardware type that would |
2609 | * casues a little bit differences on power-on sequence. | |
2610 | */ | |
2611 | priv->mcm = of_property_read_bool(dn, "mediatek,mcm"); | |
2612 | if (priv->mcm) { | |
2613 | dev_info(&mdiodev->dev, "MT7530 adapts as multi-chip module\n"); | |
2614 | ||
2615 | priv->rstc = devm_reset_control_get(&mdiodev->dev, "mcm"); | |
2616 | if (IS_ERR(priv->rstc)) { | |
2617 | dev_err(&mdiodev->dev, "Couldn't get our reset line\n"); | |
2618 | return PTR_ERR(priv->rstc); | |
2619 | } | |
2620 | } | |
2621 | ||
ddda1ac1 GU |
2622 | /* Get the hardware identifier from the devicetree node. |
2623 | * We will need it for some of the clock and regulator setup. | |
2624 | */ | |
88bdef8b LC |
2625 | priv->info = of_device_get_match_data(&mdiodev->dev); |
2626 | if (!priv->info) | |
2627 | return -EINVAL; | |
2628 | ||
2629 | /* Sanity check if these required device operations are filled | |
2630 | * properly. | |
2631 | */ | |
2632 | if (!priv->info->sw_setup || !priv->info->pad_setup || | |
2633 | !priv->info->phy_read || !priv->info->phy_write || | |
2634 | !priv->info->phy_mode_supported || | |
2635 | !priv->info->mac_port_validate || | |
2636 | !priv->info->mac_port_get_state || !priv->info->mac_port_config) | |
2637 | return -EINVAL; | |
2638 | ||
2639 | priv->id = priv->info->id; | |
b8f126a8 | 2640 | |
ddda1ac1 GU |
2641 | if (priv->id == ID_MT7530) { |
2642 | priv->core_pwr = devm_regulator_get(&mdiodev->dev, "core"); | |
2643 | if (IS_ERR(priv->core_pwr)) | |
2644 | return PTR_ERR(priv->core_pwr); | |
2645 | ||
2646 | priv->io_pwr = devm_regulator_get(&mdiodev->dev, "io"); | |
2647 | if (IS_ERR(priv->io_pwr)) | |
2648 | return PTR_ERR(priv->io_pwr); | |
2649 | } | |
b8f126a8 SW |
2650 | |
2651 | /* Not MCM that indicates switch works as the remote standalone | |
2652 | * integrated circuit so the GPIO pin would be used to complete | |
2653 | * the reset, otherwise memory-mapped register accessing used | |
2654 | * through syscon provides in the case of MCM. | |
2655 | */ | |
2656 | if (!priv->mcm) { | |
2657 | priv->reset = devm_gpiod_get_optional(&mdiodev->dev, "reset", | |
2658 | GPIOD_OUT_LOW); | |
2659 | if (IS_ERR(priv->reset)) { | |
2660 | dev_err(&mdiodev->dev, "Couldn't get our reset line\n"); | |
2661 | return PTR_ERR(priv->reset); | |
2662 | } | |
2663 | } | |
2664 | ||
2665 | priv->bus = mdiodev->bus; | |
2666 | priv->dev = &mdiodev->dev; | |
2667 | priv->ds->priv = priv; | |
2668 | priv->ds->ops = &mt7530_switch_ops; | |
2669 | mutex_init(&priv->reg_mutex); | |
2670 | dev_set_drvdata(&mdiodev->dev, priv); | |
2671 | ||
23c9ee49 | 2672 | return dsa_register_switch(priv->ds); |
b8f126a8 SW |
2673 | } |
2674 | ||
2675 | static void | |
2676 | mt7530_remove(struct mdio_device *mdiodev) | |
2677 | { | |
2678 | struct mt7530_priv *priv = dev_get_drvdata(&mdiodev->dev); | |
2679 | int ret = 0; | |
2680 | ||
2681 | ret = regulator_disable(priv->core_pwr); | |
2682 | if (ret < 0) | |
2683 | dev_err(priv->dev, | |
2684 | "Failed to disable core power: %d\n", ret); | |
2685 | ||
2686 | ret = regulator_disable(priv->io_pwr); | |
2687 | if (ret < 0) | |
2688 | dev_err(priv->dev, "Failed to disable io pwr: %d\n", | |
2689 | ret); | |
2690 | ||
2691 | dsa_unregister_switch(priv->ds); | |
2692 | mutex_destroy(&priv->reg_mutex); | |
2693 | } | |
2694 | ||
b8f126a8 SW |
2695 | static struct mdio_driver mt7530_mdio_driver = { |
2696 | .probe = mt7530_probe, | |
2697 | .remove = mt7530_remove, | |
2698 | .mdiodrv.driver = { | |
2699 | .name = "mt7530", | |
2700 | .of_match_table = mt7530_of_match, | |
2701 | }, | |
2702 | }; | |
2703 | ||
2704 | mdio_module_driver(mt7530_mdio_driver); | |
2705 | ||
2706 | MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>"); | |
2707 | MODULE_DESCRIPTION("Driver for Mediatek MT7530 Switch"); | |
2708 | MODULE_LICENSE("GPL"); |