1 // SPDX-License-Identifier: GPL-2.0-only
3 * Mediatek MT7530 DSA Switch driver
4 * Copyright (C) 2017 Sean Wang <sean.wang@mediatek.com>
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>
13 #include <linux/of_irq.h>
14 #include <linux/of_mdio.h>
15 #include <linux/of_net.h>
16 #include <linux/of_platform.h>
17 #include <linux/phylink.h>
18 #include <linux/regmap.h>
19 #include <linux/regulator/consumer.h>
20 #include <linux/reset.h>
21 #include <linux/gpio/consumer.h>
22 #include <linux/gpio/driver.h>
27 static struct mt753x_pcs *pcs_to_mt753x_pcs(struct phylink_pcs *pcs)
29 return container_of(pcs, struct mt753x_pcs, pcs);
32 /* String, offset, and register size in bytes if different from 4 bytes */
33 static const struct mt7530_mib_desc mt7530_mib[] = {
34 MIB_DESC(1, 0x00, "TxDrop"),
35 MIB_DESC(1, 0x04, "TxCrcErr"),
36 MIB_DESC(1, 0x08, "TxUnicast"),
37 MIB_DESC(1, 0x0c, "TxMulticast"),
38 MIB_DESC(1, 0x10, "TxBroadcast"),
39 MIB_DESC(1, 0x14, "TxCollision"),
40 MIB_DESC(1, 0x18, "TxSingleCollision"),
41 MIB_DESC(1, 0x1c, "TxMultipleCollision"),
42 MIB_DESC(1, 0x20, "TxDeferred"),
43 MIB_DESC(1, 0x24, "TxLateCollision"),
44 MIB_DESC(1, 0x28, "TxExcessiveCollistion"),
45 MIB_DESC(1, 0x2c, "TxPause"),
46 MIB_DESC(1, 0x30, "TxPktSz64"),
47 MIB_DESC(1, 0x34, "TxPktSz65To127"),
48 MIB_DESC(1, 0x38, "TxPktSz128To255"),
49 MIB_DESC(1, 0x3c, "TxPktSz256To511"),
50 MIB_DESC(1, 0x40, "TxPktSz512To1023"),
51 MIB_DESC(1, 0x44, "Tx1024ToMax"),
52 MIB_DESC(2, 0x48, "TxBytes"),
53 MIB_DESC(1, 0x60, "RxDrop"),
54 MIB_DESC(1, 0x64, "RxFiltering"),
55 MIB_DESC(1, 0x68, "RxUnicast"),
56 MIB_DESC(1, 0x6c, "RxMulticast"),
57 MIB_DESC(1, 0x70, "RxBroadcast"),
58 MIB_DESC(1, 0x74, "RxAlignErr"),
59 MIB_DESC(1, 0x78, "RxCrcErr"),
60 MIB_DESC(1, 0x7c, "RxUnderSizeErr"),
61 MIB_DESC(1, 0x80, "RxFragErr"),
62 MIB_DESC(1, 0x84, "RxOverSzErr"),
63 MIB_DESC(1, 0x88, "RxJabberErr"),
64 MIB_DESC(1, 0x8c, "RxPause"),
65 MIB_DESC(1, 0x90, "RxPktSz64"),
66 MIB_DESC(1, 0x94, "RxPktSz65To127"),
67 MIB_DESC(1, 0x98, "RxPktSz128To255"),
68 MIB_DESC(1, 0x9c, "RxPktSz256To511"),
69 MIB_DESC(1, 0xa0, "RxPktSz512To1023"),
70 MIB_DESC(1, 0xa4, "RxPktSz1024ToMax"),
71 MIB_DESC(2, 0xa8, "RxBytes"),
72 MIB_DESC(1, 0xb0, "RxCtrlDrop"),
73 MIB_DESC(1, 0xb4, "RxIngressDrop"),
74 MIB_DESC(1, 0xb8, "RxArlDrop"),
77 /* Since phy_device has not yet been created and
78 * phy_{read,write}_mmd_indirect is not available, we provide our own
79 * core_{read,write}_mmd_indirect with core_{clear,write,set} wrappers
80 * to complete this function.
83 core_read_mmd_indirect(struct mt7530_priv *priv, int prtad, int devad)
85 struct mii_bus *bus = priv->bus;
88 /* Write the desired MMD Devad */
89 ret = bus->write(bus, 0, MII_MMD_CTRL, devad);
93 /* Write the desired MMD register address */
94 ret = bus->write(bus, 0, MII_MMD_DATA, prtad);
98 /* Select the Function : DATA with no post increment */
99 ret = bus->write(bus, 0, MII_MMD_CTRL, (devad | MII_MMD_CTRL_NOINCR));
103 /* Read the content of the MMD's selected register */
104 value = bus->read(bus, 0, MII_MMD_DATA);
108 dev_err(&bus->dev, "failed to read mmd register\n");
114 core_write_mmd_indirect(struct mt7530_priv *priv, int prtad,
117 struct mii_bus *bus = priv->bus;
120 /* Write the desired MMD Devad */
121 ret = bus->write(bus, 0, MII_MMD_CTRL, devad);
125 /* Write the desired MMD register address */
126 ret = bus->write(bus, 0, MII_MMD_DATA, prtad);
130 /* Select the Function : DATA with no post increment */
131 ret = bus->write(bus, 0, MII_MMD_CTRL, (devad | MII_MMD_CTRL_NOINCR));
135 /* Write the data into MMD's selected register */
136 ret = bus->write(bus, 0, MII_MMD_DATA, data);
140 "failed to write mmd register\n");
145 mt7530_mutex_lock(struct mt7530_priv *priv)
148 mutex_lock_nested(&priv->bus->mdio_lock, MDIO_MUTEX_NESTED);
152 mt7530_mutex_unlock(struct mt7530_priv *priv)
155 mutex_unlock(&priv->bus->mdio_lock);
159 core_write(struct mt7530_priv *priv, u32 reg, u32 val)
161 mt7530_mutex_lock(priv);
163 core_write_mmd_indirect(priv, reg, MDIO_MMD_VEND2, val);
165 mt7530_mutex_unlock(priv);
169 core_rmw(struct mt7530_priv *priv, u32 reg, u32 mask, u32 set)
173 mt7530_mutex_lock(priv);
175 val = core_read_mmd_indirect(priv, reg, MDIO_MMD_VEND2);
178 core_write_mmd_indirect(priv, reg, MDIO_MMD_VEND2, val);
180 mt7530_mutex_unlock(priv);
184 core_set(struct mt7530_priv *priv, u32 reg, u32 val)
186 core_rmw(priv, reg, 0, val);
190 core_clear(struct mt7530_priv *priv, u32 reg, u32 val)
192 core_rmw(priv, reg, val, 0);
196 mt7530_mii_write(struct mt7530_priv *priv, u32 reg, u32 val)
200 ret = regmap_write(priv->regmap, reg, val);
204 "failed to write mt7530 register\n");
210 mt7530_mii_read(struct mt7530_priv *priv, u32 reg)
215 ret = regmap_read(priv->regmap, reg, &val);
219 "failed to read mt7530 register\n");
227 mt7530_write(struct mt7530_priv *priv, u32 reg, u32 val)
229 mt7530_mutex_lock(priv);
231 mt7530_mii_write(priv, reg, val);
233 mt7530_mutex_unlock(priv);
237 _mt7530_unlocked_read(struct mt7530_dummy_poll *p)
239 return mt7530_mii_read(p->priv, p->reg);
243 _mt7530_read(struct mt7530_dummy_poll *p)
247 mt7530_mutex_lock(p->priv);
249 val = mt7530_mii_read(p->priv, p->reg);
251 mt7530_mutex_unlock(p->priv);
257 mt7530_read(struct mt7530_priv *priv, u32 reg)
259 struct mt7530_dummy_poll p;
261 INIT_MT7530_DUMMY_POLL(&p, priv, reg);
262 return _mt7530_read(&p);
266 mt7530_rmw(struct mt7530_priv *priv, u32 reg,
269 mt7530_mutex_lock(priv);
271 regmap_update_bits(priv->regmap, reg, mask, set);
273 mt7530_mutex_unlock(priv);
277 mt7530_set(struct mt7530_priv *priv, u32 reg, u32 val)
279 mt7530_rmw(priv, reg, val, val);
283 mt7530_clear(struct mt7530_priv *priv, u32 reg, u32 val)
285 mt7530_rmw(priv, reg, val, 0);
289 mt7530_fdb_cmd(struct mt7530_priv *priv, enum mt7530_fdb_cmd cmd, u32 *rsp)
293 struct mt7530_dummy_poll p;
295 /* Set the command operating upon the MAC address entries */
296 val = ATC_BUSY | ATC_MAT(0) | cmd;
297 mt7530_write(priv, MT7530_ATC, val);
299 INIT_MT7530_DUMMY_POLL(&p, priv, MT7530_ATC);
300 ret = readx_poll_timeout(_mt7530_read, &p, val,
301 !(val & ATC_BUSY), 20, 20000);
303 dev_err(priv->dev, "reset timeout\n");
307 /* Additional sanity for read command if the specified
310 val = mt7530_read(priv, MT7530_ATC);
311 if ((cmd == MT7530_FDB_READ) && (val & ATC_INVALID))
321 mt7530_fdb_read(struct mt7530_priv *priv, struct mt7530_fdb *fdb)
326 /* Read from ARL table into an array */
327 for (i = 0; i < 3; i++) {
328 reg[i] = mt7530_read(priv, MT7530_TSRA1 + (i * 4));
330 dev_dbg(priv->dev, "%s(%d) reg[%d]=0x%x\n",
331 __func__, __LINE__, i, reg[i]);
334 fdb->vid = (reg[1] >> CVID) & CVID_MASK;
335 fdb->aging = (reg[2] >> AGE_TIMER) & AGE_TIMER_MASK;
336 fdb->port_mask = (reg[2] >> PORT_MAP) & PORT_MAP_MASK;
337 fdb->mac[0] = (reg[0] >> MAC_BYTE_0) & MAC_BYTE_MASK;
338 fdb->mac[1] = (reg[0] >> MAC_BYTE_1) & MAC_BYTE_MASK;
339 fdb->mac[2] = (reg[0] >> MAC_BYTE_2) & MAC_BYTE_MASK;
340 fdb->mac[3] = (reg[0] >> MAC_BYTE_3) & MAC_BYTE_MASK;
341 fdb->mac[4] = (reg[1] >> MAC_BYTE_4) & MAC_BYTE_MASK;
342 fdb->mac[5] = (reg[1] >> MAC_BYTE_5) & MAC_BYTE_MASK;
343 fdb->noarp = ((reg[2] >> ENT_STATUS) & ENT_STATUS_MASK) == STATIC_ENT;
347 mt7530_fdb_write(struct mt7530_priv *priv, u16 vid,
348 u8 port_mask, const u8 *mac,
354 reg[1] |= vid & CVID_MASK;
356 reg[1] |= ATA2_FID(FID_BRIDGED);
357 reg[2] |= (aging & AGE_TIMER_MASK) << AGE_TIMER;
358 reg[2] |= (port_mask & PORT_MAP_MASK) << PORT_MAP;
359 /* STATIC_ENT indicate that entry is static wouldn't
360 * be aged out and STATIC_EMP specified as erasing an
363 reg[2] |= (type & ENT_STATUS_MASK) << ENT_STATUS;
364 reg[1] |= mac[5] << MAC_BYTE_5;
365 reg[1] |= mac[4] << MAC_BYTE_4;
366 reg[0] |= mac[3] << MAC_BYTE_3;
367 reg[0] |= mac[2] << MAC_BYTE_2;
368 reg[0] |= mac[1] << MAC_BYTE_1;
369 reg[0] |= mac[0] << MAC_BYTE_0;
371 /* Write array into the ARL table */
372 for (i = 0; i < 3; i++)
373 mt7530_write(priv, MT7530_ATA1 + (i * 4), reg[i]);
376 /* Set up switch core clock for MT7530 */
377 static void mt7530_pll_setup(struct mt7530_priv *priv)
379 /* Disable core clock */
380 core_clear(priv, CORE_TRGMII_GSW_CLK_CG, REG_GSWCK_EN);
383 core_write(priv, CORE_GSWPLL_GRP1, 0);
385 /* Set core clock into 500Mhz */
386 core_write(priv, CORE_GSWPLL_GRP2,
387 RG_GSWPLL_POSDIV_500M(1) |
388 RG_GSWPLL_FBKDIV_500M(25));
391 core_write(priv, CORE_GSWPLL_GRP1,
393 RG_GSWPLL_POSDIV_200M(2) |
394 RG_GSWPLL_FBKDIV_200M(32));
398 /* Enable core clock */
399 core_set(priv, CORE_TRGMII_GSW_CLK_CG, REG_GSWCK_EN);
402 /* If port 6 is available as a CPU port, always prefer that as the default,
403 * otherwise don't care.
405 static struct dsa_port *
406 mt753x_preferred_default_local_cpu_port(struct dsa_switch *ds)
408 struct dsa_port *cpu_dp = dsa_to_port(ds, 6);
410 if (dsa_port_is_cpu(cpu_dp))
416 /* Setup port 6 interface mode and TRGMII TX circuit */
418 mt7530_setup_port6(struct dsa_switch *ds, phy_interface_t interface)
420 struct mt7530_priv *priv = ds->priv;
421 u32 ncpo1, ssc_delta, xtal;
423 /* Disable the MT7530 TRGMII clocks */
424 core_clear(priv, CORE_TRGMII_GSW_CLK_CG, REG_TRGMIICK_EN);
426 if (interface == PHY_INTERFACE_MODE_RGMII) {
427 mt7530_rmw(priv, MT7530_P6ECR, P6_INTF_MODE_MASK,
432 mt7530_rmw(priv, MT7530_P6ECR, P6_INTF_MODE_MASK, P6_INTF_MODE(1));
434 xtal = mt7530_read(priv, MT7530_MHWTRAP) & HWTRAP_XTAL_MASK;
436 if (xtal == HWTRAP_XTAL_25MHZ)
441 if (priv->id == ID_MT7621) {
442 /* PLL frequency: 125MHz: 1.0GBit */
443 if (xtal == HWTRAP_XTAL_40MHZ)
445 if (xtal == HWTRAP_XTAL_25MHZ)
447 } else { /* PLL frequency: 250MHz: 2.0Gbit */
448 if (xtal == HWTRAP_XTAL_40MHZ)
450 if (xtal == HWTRAP_XTAL_25MHZ)
454 /* Setup the MT7530 TRGMII Tx Clock */
455 core_write(priv, CORE_PLL_GROUP5, RG_LCDDS_PCW_NCPO1(ncpo1));
456 core_write(priv, CORE_PLL_GROUP6, RG_LCDDS_PCW_NCPO0(0));
457 core_write(priv, CORE_PLL_GROUP10, RG_LCDDS_SSC_DELTA(ssc_delta));
458 core_write(priv, CORE_PLL_GROUP11, RG_LCDDS_SSC_DELTA1(ssc_delta));
459 core_write(priv, CORE_PLL_GROUP4, RG_SYSPLL_DDSFBK_EN |
460 RG_SYSPLL_BIAS_EN | RG_SYSPLL_BIAS_LPF_EN);
461 core_write(priv, CORE_PLL_GROUP2, RG_SYSPLL_EN_NORMAL |
462 RG_SYSPLL_VODEN | RG_SYSPLL_POSDIV(1));
463 core_write(priv, CORE_PLL_GROUP7, RG_LCDDS_PCW_NCPO_CHG |
464 RG_LCCDS_C(3) | RG_LCDDS_PWDB | RG_LCDDS_ISO_EN);
466 /* Enable the MT7530 TRGMII clocks */
467 core_set(priv, CORE_TRGMII_GSW_CLK_CG, REG_TRGMIICK_EN);
471 mt7531_pll_setup(struct mt7530_priv *priv)
478 val = mt7530_read(priv, MT7531_CREV);
479 top_sig = mt7530_read(priv, MT7531_TOP_SIG_SR);
480 hwstrap = mt7530_read(priv, MT7531_HWTRAP);
481 if ((val & CHIP_REV_M) > 0)
482 xtal = (top_sig & PAD_MCM_SMI_EN) ? HWTRAP_XTAL_FSEL_40MHZ :
483 HWTRAP_XTAL_FSEL_25MHZ;
485 xtal = hwstrap & HWTRAP_XTAL_FSEL_MASK;
487 /* Step 1 : Disable MT7531 COREPLL */
488 val = mt7530_read(priv, MT7531_PLLGP_EN);
490 mt7530_write(priv, MT7531_PLLGP_EN, val);
492 /* Step 2: switch to XTAL output */
493 val = mt7530_read(priv, MT7531_PLLGP_EN);
495 mt7530_write(priv, MT7531_PLLGP_EN, val);
497 val = mt7530_read(priv, MT7531_PLLGP_CR0);
498 val &= ~RG_COREPLL_EN;
499 mt7530_write(priv, MT7531_PLLGP_CR0, val);
501 /* Step 3: disable PLLGP and enable program PLLGP */
502 val = mt7530_read(priv, MT7531_PLLGP_EN);
504 mt7530_write(priv, MT7531_PLLGP_EN, val);
506 /* Step 4: program COREPLL output frequency to 500MHz */
507 val = mt7530_read(priv, MT7531_PLLGP_CR0);
508 val &= ~RG_COREPLL_POSDIV_M;
509 val |= 2 << RG_COREPLL_POSDIV_S;
510 mt7530_write(priv, MT7531_PLLGP_CR0, val);
511 usleep_range(25, 35);
514 case HWTRAP_XTAL_FSEL_25MHZ:
515 val = mt7530_read(priv, MT7531_PLLGP_CR0);
516 val &= ~RG_COREPLL_SDM_PCW_M;
517 val |= 0x140000 << RG_COREPLL_SDM_PCW_S;
518 mt7530_write(priv, MT7531_PLLGP_CR0, val);
520 case HWTRAP_XTAL_FSEL_40MHZ:
521 val = mt7530_read(priv, MT7531_PLLGP_CR0);
522 val &= ~RG_COREPLL_SDM_PCW_M;
523 val |= 0x190000 << RG_COREPLL_SDM_PCW_S;
524 mt7530_write(priv, MT7531_PLLGP_CR0, val);
528 /* Set feedback divide ratio update signal to high */
529 val = mt7530_read(priv, MT7531_PLLGP_CR0);
530 val |= RG_COREPLL_SDM_PCW_CHG;
531 mt7530_write(priv, MT7531_PLLGP_CR0, val);
532 /* Wait for at least 16 XTAL clocks */
533 usleep_range(10, 20);
535 /* Step 5: set feedback divide ratio update signal to low */
536 val = mt7530_read(priv, MT7531_PLLGP_CR0);
537 val &= ~RG_COREPLL_SDM_PCW_CHG;
538 mt7530_write(priv, MT7531_PLLGP_CR0, val);
540 /* Enable 325M clock for SGMII */
541 mt7530_write(priv, MT7531_ANA_PLLGP_CR5, 0xad0000);
543 /* Enable 250SSC clock for RGMII */
544 mt7530_write(priv, MT7531_ANA_PLLGP_CR2, 0x4f40000);
546 /* Step 6: Enable MT7531 PLL */
547 val = mt7530_read(priv, MT7531_PLLGP_CR0);
548 val |= RG_COREPLL_EN;
549 mt7530_write(priv, MT7531_PLLGP_CR0, val);
551 val = mt7530_read(priv, MT7531_PLLGP_EN);
553 mt7530_write(priv, MT7531_PLLGP_EN, val);
554 usleep_range(25, 35);
558 mt7530_mib_reset(struct dsa_switch *ds)
560 struct mt7530_priv *priv = ds->priv;
562 mt7530_write(priv, MT7530_MIB_CCR, CCR_MIB_FLUSH);
563 mt7530_write(priv, MT7530_MIB_CCR, CCR_MIB_ACTIVATE);
566 static int mt7530_phy_read_c22(struct mt7530_priv *priv, int port, int regnum)
568 return mdiobus_read_nested(priv->bus, port, regnum);
571 static int mt7530_phy_write_c22(struct mt7530_priv *priv, int port, int regnum,
574 return mdiobus_write_nested(priv->bus, port, regnum, val);
577 static int mt7530_phy_read_c45(struct mt7530_priv *priv, int port,
578 int devad, int regnum)
580 return mdiobus_c45_read_nested(priv->bus, port, devad, regnum);
583 static int mt7530_phy_write_c45(struct mt7530_priv *priv, int port, int devad,
586 return mdiobus_c45_write_nested(priv->bus, port, devad, regnum, val);
590 mt7531_ind_c45_phy_read(struct mt7530_priv *priv, int port, int devad,
593 struct mt7530_dummy_poll p;
597 INIT_MT7530_DUMMY_POLL(&p, priv, MT7531_PHY_IAC);
599 mt7530_mutex_lock(priv);
601 ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val,
602 !(val & MT7531_PHY_ACS_ST), 20, 100000);
604 dev_err(priv->dev, "poll timeout\n");
608 reg = MT7531_MDIO_CL45_ADDR | MT7531_MDIO_PHY_ADDR(port) |
609 MT7531_MDIO_DEV_ADDR(devad) | regnum;
610 mt7530_mii_write(priv, MT7531_PHY_IAC, reg | MT7531_PHY_ACS_ST);
612 ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val,
613 !(val & MT7531_PHY_ACS_ST), 20, 100000);
615 dev_err(priv->dev, "poll timeout\n");
619 reg = MT7531_MDIO_CL45_READ | MT7531_MDIO_PHY_ADDR(port) |
620 MT7531_MDIO_DEV_ADDR(devad);
621 mt7530_mii_write(priv, MT7531_PHY_IAC, reg | MT7531_PHY_ACS_ST);
623 ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val,
624 !(val & MT7531_PHY_ACS_ST), 20, 100000);
626 dev_err(priv->dev, "poll timeout\n");
630 ret = val & MT7531_MDIO_RW_DATA_MASK;
632 mt7530_mutex_unlock(priv);
638 mt7531_ind_c45_phy_write(struct mt7530_priv *priv, int port, int devad,
639 int regnum, u16 data)
641 struct mt7530_dummy_poll p;
645 INIT_MT7530_DUMMY_POLL(&p, priv, MT7531_PHY_IAC);
647 mt7530_mutex_lock(priv);
649 ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val,
650 !(val & MT7531_PHY_ACS_ST), 20, 100000);
652 dev_err(priv->dev, "poll timeout\n");
656 reg = MT7531_MDIO_CL45_ADDR | MT7531_MDIO_PHY_ADDR(port) |
657 MT7531_MDIO_DEV_ADDR(devad) | regnum;
658 mt7530_mii_write(priv, MT7531_PHY_IAC, reg | MT7531_PHY_ACS_ST);
660 ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val,
661 !(val & MT7531_PHY_ACS_ST), 20, 100000);
663 dev_err(priv->dev, "poll timeout\n");
667 reg = MT7531_MDIO_CL45_WRITE | MT7531_MDIO_PHY_ADDR(port) |
668 MT7531_MDIO_DEV_ADDR(devad) | data;
669 mt7530_mii_write(priv, MT7531_PHY_IAC, reg | MT7531_PHY_ACS_ST);
671 ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val,
672 !(val & MT7531_PHY_ACS_ST), 20, 100000);
674 dev_err(priv->dev, "poll timeout\n");
679 mt7530_mutex_unlock(priv);
685 mt7531_ind_c22_phy_read(struct mt7530_priv *priv, int port, int regnum)
687 struct mt7530_dummy_poll p;
691 INIT_MT7530_DUMMY_POLL(&p, priv, MT7531_PHY_IAC);
693 mt7530_mutex_lock(priv);
695 ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val,
696 !(val & MT7531_PHY_ACS_ST), 20, 100000);
698 dev_err(priv->dev, "poll timeout\n");
702 val = MT7531_MDIO_CL22_READ | MT7531_MDIO_PHY_ADDR(port) |
703 MT7531_MDIO_REG_ADDR(regnum);
705 mt7530_mii_write(priv, MT7531_PHY_IAC, val | MT7531_PHY_ACS_ST);
707 ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val,
708 !(val & MT7531_PHY_ACS_ST), 20, 100000);
710 dev_err(priv->dev, "poll timeout\n");
714 ret = val & MT7531_MDIO_RW_DATA_MASK;
716 mt7530_mutex_unlock(priv);
722 mt7531_ind_c22_phy_write(struct mt7530_priv *priv, int port, int regnum,
725 struct mt7530_dummy_poll p;
729 INIT_MT7530_DUMMY_POLL(&p, priv, MT7531_PHY_IAC);
731 mt7530_mutex_lock(priv);
733 ret = readx_poll_timeout(_mt7530_unlocked_read, &p, reg,
734 !(reg & MT7531_PHY_ACS_ST), 20, 100000);
736 dev_err(priv->dev, "poll timeout\n");
740 reg = MT7531_MDIO_CL22_WRITE | MT7531_MDIO_PHY_ADDR(port) |
741 MT7531_MDIO_REG_ADDR(regnum) | data;
743 mt7530_mii_write(priv, MT7531_PHY_IAC, reg | MT7531_PHY_ACS_ST);
745 ret = readx_poll_timeout(_mt7530_unlocked_read, &p, reg,
746 !(reg & MT7531_PHY_ACS_ST), 20, 100000);
748 dev_err(priv->dev, "poll timeout\n");
753 mt7530_mutex_unlock(priv);
759 mt753x_phy_read_c22(struct mii_bus *bus, int port, int regnum)
761 struct mt7530_priv *priv = bus->priv;
763 return priv->info->phy_read_c22(priv, port, regnum);
767 mt753x_phy_read_c45(struct mii_bus *bus, int port, int devad, int regnum)
769 struct mt7530_priv *priv = bus->priv;
771 return priv->info->phy_read_c45(priv, port, devad, regnum);
775 mt753x_phy_write_c22(struct mii_bus *bus, int port, int regnum, u16 val)
777 struct mt7530_priv *priv = bus->priv;
779 return priv->info->phy_write_c22(priv, port, regnum, val);
783 mt753x_phy_write_c45(struct mii_bus *bus, int port, int devad, int regnum,
786 struct mt7530_priv *priv = bus->priv;
788 return priv->info->phy_write_c45(priv, port, devad, regnum, val);
792 mt7530_get_strings(struct dsa_switch *ds, int port, u32 stringset,
797 if (stringset != ETH_SS_STATS)
800 for (i = 0; i < ARRAY_SIZE(mt7530_mib); i++)
801 ethtool_puts(&data, mt7530_mib[i].name);
805 mt7530_get_ethtool_stats(struct dsa_switch *ds, int port,
808 struct mt7530_priv *priv = ds->priv;
809 const struct mt7530_mib_desc *mib;
813 for (i = 0; i < ARRAY_SIZE(mt7530_mib); i++) {
814 mib = &mt7530_mib[i];
815 reg = MT7530_PORT_MIB_COUNTER(port) + mib->offset;
817 data[i] = mt7530_read(priv, reg);
818 if (mib->size == 2) {
819 hi = mt7530_read(priv, reg + 4);
826 mt7530_get_sset_count(struct dsa_switch *ds, int port, int sset)
828 if (sset != ETH_SS_STATS)
831 return ARRAY_SIZE(mt7530_mib);
835 mt7530_set_ageing_time(struct dsa_switch *ds, unsigned int msecs)
837 struct mt7530_priv *priv = ds->priv;
838 unsigned int secs = msecs / 1000;
839 unsigned int tmp_age_count;
840 unsigned int error = -1;
841 unsigned int age_count;
842 unsigned int age_unit;
844 /* Applied timer is (AGE_CNT + 1) * (AGE_UNIT + 1) seconds */
845 if (secs < 1 || secs > (AGE_CNT_MAX + 1) * (AGE_UNIT_MAX + 1))
848 /* iterate through all possible age_count to find the closest pair */
849 for (tmp_age_count = 0; tmp_age_count <= AGE_CNT_MAX; ++tmp_age_count) {
850 unsigned int tmp_age_unit = secs / (tmp_age_count + 1) - 1;
852 if (tmp_age_unit <= AGE_UNIT_MAX) {
853 unsigned int tmp_error = secs -
854 (tmp_age_count + 1) * (tmp_age_unit + 1);
856 /* found a closer pair */
857 if (error > tmp_error) {
859 age_count = tmp_age_count;
860 age_unit = tmp_age_unit;
863 /* found the exact match, so break the loop */
869 mt7530_write(priv, MT7530_AAC, AGE_CNT(age_count) | AGE_UNIT(age_unit));
874 static const char *p5_intf_modes(unsigned int p5_interface)
876 switch (p5_interface) {
879 case P5_INTF_SEL_PHY_P0:
881 case P5_INTF_SEL_PHY_P4:
883 case P5_INTF_SEL_GMAC5:
890 static void mt7530_setup_port5(struct dsa_switch *ds, phy_interface_t interface)
892 struct mt7530_priv *priv = ds->priv;
896 mutex_lock(&priv->reg_mutex);
898 val = mt7530_read(priv, MT7530_MHWTRAP);
900 val |= MHWTRAP_MANUAL | MHWTRAP_P5_MAC_SEL | MHWTRAP_P5_DIS;
901 val &= ~MHWTRAP_P5_RGMII_MODE & ~MHWTRAP_PHY0_SEL;
903 switch (priv->p5_intf_sel) {
904 case P5_INTF_SEL_PHY_P0:
905 /* MT7530_P5_MODE_GPHY_P0: 2nd GMAC -> P5 -> P0 */
906 val |= MHWTRAP_PHY0_SEL;
908 case P5_INTF_SEL_PHY_P4:
909 /* MT7530_P5_MODE_GPHY_P4: 2nd GMAC -> P5 -> P4 */
910 val &= ~MHWTRAP_P5_MAC_SEL & ~MHWTRAP_P5_DIS;
912 /* Setup the MAC by default for the cpu port */
913 mt7530_write(priv, MT7530_PMCR_P(5), 0x56300);
915 case P5_INTF_SEL_GMAC5:
916 /* MT7530_P5_MODE_GMAC: P5 -> External phy or 2nd GMAC */
917 val &= ~MHWTRAP_P5_DIS;
923 /* Setup RGMII settings */
924 if (phy_interface_mode_is_rgmii(interface)) {
925 val |= MHWTRAP_P5_RGMII_MODE;
927 /* P5 RGMII RX Clock Control: delay setting for 1000M */
928 mt7530_write(priv, MT7530_P5RGMIIRXCR, CSR_RGMII_EDGE_ALIGN);
930 /* Don't set delay in DSA mode */
931 if (!dsa_is_dsa_port(priv->ds, 5) &&
932 (interface == PHY_INTERFACE_MODE_RGMII_TXID ||
933 interface == PHY_INTERFACE_MODE_RGMII_ID))
934 tx_delay = 4; /* n * 0.5 ns */
936 /* P5 RGMII TX Clock Control: delay x */
937 mt7530_write(priv, MT7530_P5RGMIITXCR,
938 CSR_RGMII_TXC_CFG(0x10 + tx_delay));
940 /* reduce P5 RGMII Tx driving, 8mA */
941 mt7530_write(priv, MT7530_IO_DRV_CR,
942 P5_IO_CLK_DRV(1) | P5_IO_DATA_DRV(1));
945 mt7530_write(priv, MT7530_MHWTRAP, val);
947 dev_dbg(ds->dev, "Setup P5, HWTRAP=0x%x, intf_sel=%s, phy-mode=%s\n",
948 val, p5_intf_modes(priv->p5_intf_sel), phy_modes(interface));
950 mutex_unlock(&priv->reg_mutex);
953 /* On page 205, section "8.6.3 Frame filtering" of the active standard, IEEE Std
954 * 802.1Qâ„¢-2022, it is stated that frames with 01:80:C2:00:00:00-0F as MAC DA
955 * must only be propagated to C-VLAN and MAC Bridge components. That means
956 * VLAN-aware and VLAN-unaware bridges. On the switch designs with CPU ports,
957 * these frames are supposed to be processed by the CPU (software). So we make
958 * the switch only forward them to the CPU port. And if received from a CPU
959 * port, forward to a single port. The software is responsible of making the
960 * switch conform to the latter by setting a single port as destination port on
963 * This switch intellectual property cannot conform to this part of the standard
964 * fully. Whilst the REV_UN frame tag covers the remaining :04-0D and :0F MAC
965 * DAs, it also includes :22-FF which the scope of propagation is not supposed
966 * to be restricted for these MAC DAs.
969 mt753x_trap_frames(struct mt7530_priv *priv)
971 /* Trap 802.1X PAE frames and BPDUs to the CPU port(s) and egress them
974 mt7530_rmw(priv, MT753X_BPC, MT753X_PAE_EG_TAG_MASK |
975 MT753X_PAE_PORT_FW_MASK | MT753X_BPDU_EG_TAG_MASK |
976 MT753X_BPDU_PORT_FW_MASK,
977 MT753X_PAE_EG_TAG(MT7530_VLAN_EG_UNTAGGED) |
978 MT753X_PAE_PORT_FW(MT753X_BPDU_CPU_ONLY) |
979 MT753X_BPDU_EG_TAG(MT7530_VLAN_EG_UNTAGGED) |
980 MT753X_BPDU_CPU_ONLY);
982 /* Trap frames with :01 and :02 MAC DAs to the CPU port(s) and egress
983 * them VLAN-untagged.
985 mt7530_rmw(priv, MT753X_RGAC1, MT753X_R02_EG_TAG_MASK |
986 MT753X_R02_PORT_FW_MASK | MT753X_R01_EG_TAG_MASK |
987 MT753X_R01_PORT_FW_MASK,
988 MT753X_R02_EG_TAG(MT7530_VLAN_EG_UNTAGGED) |
989 MT753X_R02_PORT_FW(MT753X_BPDU_CPU_ONLY) |
990 MT753X_R01_EG_TAG(MT7530_VLAN_EG_UNTAGGED) |
991 MT753X_BPDU_CPU_ONLY);
993 /* Trap frames with :03 and :0E MAC DAs to the CPU port(s) and egress
994 * them VLAN-untagged.
996 mt7530_rmw(priv, MT753X_RGAC2, MT753X_R0E_EG_TAG_MASK |
997 MT753X_R0E_PORT_FW_MASK | MT753X_R03_EG_TAG_MASK |
998 MT753X_R03_PORT_FW_MASK,
999 MT753X_R0E_EG_TAG(MT7530_VLAN_EG_UNTAGGED) |
1000 MT753X_R0E_PORT_FW(MT753X_BPDU_CPU_ONLY) |
1001 MT753X_R03_EG_TAG(MT7530_VLAN_EG_UNTAGGED) |
1002 MT753X_BPDU_CPU_ONLY);
1006 mt753x_cpu_port_enable(struct dsa_switch *ds, int port)
1008 struct mt7530_priv *priv = ds->priv;
1010 /* Enable Mediatek header mode on the cpu port */
1011 mt7530_write(priv, MT7530_PVC_P(port),
1014 /* Enable flooding on the CPU port */
1015 mt7530_set(priv, MT7530_MFC, BC_FFP(BIT(port)) | UNM_FFP(BIT(port)) |
1016 UNU_FFP(BIT(port)));
1018 /* Add the CPU port to the CPU port bitmap for MT7531 and the switch on
1019 * the MT7988 SoC. Trapped frames will be forwarded to the CPU port that
1020 * is affine to the inbound user port.
1022 if (priv->id == ID_MT7531 || priv->id == ID_MT7988)
1023 mt7530_set(priv, MT7531_CFC, MT7531_CPU_PMAP(BIT(port)));
1025 /* CPU port gets connected to all user ports of
1028 mt7530_write(priv, MT7530_PCR_P(port),
1029 PCR_MATRIX(dsa_user_ports(priv->ds)));
1031 /* Set to fallback mode for independent VLAN learning */
1032 mt7530_rmw(priv, MT7530_PCR_P(port), PCR_PORT_VLAN_MASK,
1033 MT7530_PORT_FALLBACK_MODE);
1037 mt7530_port_enable(struct dsa_switch *ds, int port,
1038 struct phy_device *phy)
1040 struct dsa_port *dp = dsa_to_port(ds, port);
1041 struct mt7530_priv *priv = ds->priv;
1043 mutex_lock(&priv->reg_mutex);
1045 /* Allow the user port gets connected to the cpu port and also
1046 * restore the port matrix if the port is the member of a certain
1049 if (dsa_port_is_user(dp)) {
1050 struct dsa_port *cpu_dp = dp->cpu_dp;
1052 priv->ports[port].pm |= PCR_MATRIX(BIT(cpu_dp->index));
1054 priv->ports[port].enable = true;
1055 mt7530_rmw(priv, MT7530_PCR_P(port), PCR_MATRIX_MASK,
1056 priv->ports[port].pm);
1058 mutex_unlock(&priv->reg_mutex);
1064 mt7530_port_disable(struct dsa_switch *ds, int port)
1066 struct mt7530_priv *priv = ds->priv;
1068 mutex_lock(&priv->reg_mutex);
1070 /* Clear up all port matrix which could be restored in the next
1071 * enablement for the port.
1073 priv->ports[port].enable = false;
1074 mt7530_rmw(priv, MT7530_PCR_P(port), PCR_MATRIX_MASK,
1077 mutex_unlock(&priv->reg_mutex);
1081 mt7530_port_change_mtu(struct dsa_switch *ds, int port, int new_mtu)
1083 struct mt7530_priv *priv = ds->priv;
1087 /* When a new MTU is set, DSA always set the CPU port's MTU to the
1088 * largest MTU of the user ports. Because the switch only has a global
1089 * RX length register, only allowing CPU port here is enough.
1091 if (!dsa_is_cpu_port(ds, port))
1094 mt7530_mutex_lock(priv);
1096 val = mt7530_mii_read(priv, MT7530_GMACCR);
1097 val &= ~MAX_RX_PKT_LEN_MASK;
1099 /* RX length also includes Ethernet header, MTK tag, and FCS length */
1100 length = new_mtu + ETH_HLEN + MTK_HDR_LEN + ETH_FCS_LEN;
1101 if (length <= 1522) {
1102 val |= MAX_RX_PKT_LEN_1522;
1103 } else if (length <= 1536) {
1104 val |= MAX_RX_PKT_LEN_1536;
1105 } else if (length <= 1552) {
1106 val |= MAX_RX_PKT_LEN_1552;
1108 val &= ~MAX_RX_JUMBO_MASK;
1109 val |= MAX_RX_JUMBO(DIV_ROUND_UP(length, 1024));
1110 val |= MAX_RX_PKT_LEN_JUMBO;
1113 mt7530_mii_write(priv, MT7530_GMACCR, val);
1115 mt7530_mutex_unlock(priv);
1121 mt7530_port_max_mtu(struct dsa_switch *ds, int port)
1123 return MT7530_MAX_MTU;
1127 mt7530_stp_state_set(struct dsa_switch *ds, int port, u8 state)
1129 struct mt7530_priv *priv = ds->priv;
1133 case BR_STATE_DISABLED:
1134 stp_state = MT7530_STP_DISABLED;
1136 case BR_STATE_BLOCKING:
1137 stp_state = MT7530_STP_BLOCKING;
1139 case BR_STATE_LISTENING:
1140 stp_state = MT7530_STP_LISTENING;
1142 case BR_STATE_LEARNING:
1143 stp_state = MT7530_STP_LEARNING;
1145 case BR_STATE_FORWARDING:
1147 stp_state = MT7530_STP_FORWARDING;
1151 mt7530_rmw(priv, MT7530_SSP_P(port), FID_PST_MASK(FID_BRIDGED),
1152 FID_PST(FID_BRIDGED, stp_state));
1156 mt7530_port_pre_bridge_flags(struct dsa_switch *ds, int port,
1157 struct switchdev_brport_flags flags,
1158 struct netlink_ext_ack *extack)
1160 if (flags.mask & ~(BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD |
1168 mt7530_port_bridge_flags(struct dsa_switch *ds, int port,
1169 struct switchdev_brport_flags flags,
1170 struct netlink_ext_ack *extack)
1172 struct mt7530_priv *priv = ds->priv;
1174 if (flags.mask & BR_LEARNING)
1175 mt7530_rmw(priv, MT7530_PSC_P(port), SA_DIS,
1176 flags.val & BR_LEARNING ? 0 : SA_DIS);
1178 if (flags.mask & BR_FLOOD)
1179 mt7530_rmw(priv, MT7530_MFC, UNU_FFP(BIT(port)),
1180 flags.val & BR_FLOOD ? UNU_FFP(BIT(port)) : 0);
1182 if (flags.mask & BR_MCAST_FLOOD)
1183 mt7530_rmw(priv, MT7530_MFC, UNM_FFP(BIT(port)),
1184 flags.val & BR_MCAST_FLOOD ? UNM_FFP(BIT(port)) : 0);
1186 if (flags.mask & BR_BCAST_FLOOD)
1187 mt7530_rmw(priv, MT7530_MFC, BC_FFP(BIT(port)),
1188 flags.val & BR_BCAST_FLOOD ? BC_FFP(BIT(port)) : 0);
1194 mt7530_port_bridge_join(struct dsa_switch *ds, int port,
1195 struct dsa_bridge bridge, bool *tx_fwd_offload,
1196 struct netlink_ext_ack *extack)
1198 struct dsa_port *dp = dsa_to_port(ds, port), *other_dp;
1199 struct dsa_port *cpu_dp = dp->cpu_dp;
1200 u32 port_bitmap = BIT(cpu_dp->index);
1201 struct mt7530_priv *priv = ds->priv;
1203 mutex_lock(&priv->reg_mutex);
1205 dsa_switch_for_each_user_port(other_dp, ds) {
1206 int other_port = other_dp->index;
1211 /* Add this port to the port matrix of the other ports in the
1212 * same bridge. If the port is disabled, port matrix is kept
1213 * and not being setup until the port becomes enabled.
1215 if (!dsa_port_offloads_bridge(other_dp, &bridge))
1218 if (priv->ports[other_port].enable)
1219 mt7530_set(priv, MT7530_PCR_P(other_port),
1220 PCR_MATRIX(BIT(port)));
1221 priv->ports[other_port].pm |= PCR_MATRIX(BIT(port));
1223 port_bitmap |= BIT(other_port);
1226 /* Add the all other ports to this port matrix. */
1227 if (priv->ports[port].enable)
1228 mt7530_rmw(priv, MT7530_PCR_P(port),
1229 PCR_MATRIX_MASK, PCR_MATRIX(port_bitmap));
1230 priv->ports[port].pm |= PCR_MATRIX(port_bitmap);
1232 /* Set to fallback mode for independent VLAN learning */
1233 mt7530_rmw(priv, MT7530_PCR_P(port), PCR_PORT_VLAN_MASK,
1234 MT7530_PORT_FALLBACK_MODE);
1236 mutex_unlock(&priv->reg_mutex);
1242 mt7530_port_set_vlan_unaware(struct dsa_switch *ds, int port)
1244 struct mt7530_priv *priv = ds->priv;
1245 bool all_user_ports_removed = true;
1248 /* This is called after .port_bridge_leave when leaving a VLAN-aware
1249 * bridge. Don't set standalone ports to fallback mode.
1251 if (dsa_port_bridge_dev_get(dsa_to_port(ds, port)))
1252 mt7530_rmw(priv, MT7530_PCR_P(port), PCR_PORT_VLAN_MASK,
1253 MT7530_PORT_FALLBACK_MODE);
1255 mt7530_rmw(priv, MT7530_PVC_P(port),
1256 VLAN_ATTR_MASK | PVC_EG_TAG_MASK | ACC_FRM_MASK,
1257 VLAN_ATTR(MT7530_VLAN_TRANSPARENT) |
1258 PVC_EG_TAG(MT7530_VLAN_EG_CONSISTENT) |
1259 MT7530_VLAN_ACC_ALL);
1262 mt7530_rmw(priv, MT7530_PPBV1_P(port), G0_PORT_VID_MASK,
1265 for (i = 0; i < MT7530_NUM_PORTS; i++) {
1266 if (dsa_is_user_port(ds, i) &&
1267 dsa_port_is_vlan_filtering(dsa_to_port(ds, i))) {
1268 all_user_ports_removed = false;
1273 /* CPU port also does the same thing until all user ports belonging to
1274 * the CPU port get out of VLAN filtering mode.
1276 if (all_user_ports_removed) {
1277 struct dsa_port *dp = dsa_to_port(ds, port);
1278 struct dsa_port *cpu_dp = dp->cpu_dp;
1280 mt7530_write(priv, MT7530_PCR_P(cpu_dp->index),
1281 PCR_MATRIX(dsa_user_ports(priv->ds)));
1282 mt7530_write(priv, MT7530_PVC_P(cpu_dp->index), PORT_SPEC_TAG
1283 | PVC_EG_TAG(MT7530_VLAN_EG_CONSISTENT));
1288 mt7530_port_set_vlan_aware(struct dsa_switch *ds, int port)
1290 struct mt7530_priv *priv = ds->priv;
1292 /* Trapped into security mode allows packet forwarding through VLAN
1295 if (dsa_is_user_port(ds, port)) {
1296 mt7530_rmw(priv, MT7530_PCR_P(port), PCR_PORT_VLAN_MASK,
1297 MT7530_PORT_SECURITY_MODE);
1298 mt7530_rmw(priv, MT7530_PPBV1_P(port), G0_PORT_VID_MASK,
1299 G0_PORT_VID(priv->ports[port].pvid));
1301 /* Only accept tagged frames if PVID is not set */
1302 if (!priv->ports[port].pvid)
1303 mt7530_rmw(priv, MT7530_PVC_P(port), ACC_FRM_MASK,
1304 MT7530_VLAN_ACC_TAGGED);
1306 /* Set the port as a user port which is to be able to recognize
1307 * VID from incoming packets before fetching entry within the
1310 mt7530_rmw(priv, MT7530_PVC_P(port),
1311 VLAN_ATTR_MASK | PVC_EG_TAG_MASK,
1312 VLAN_ATTR(MT7530_VLAN_USER) |
1313 PVC_EG_TAG(MT7530_VLAN_EG_DISABLED));
1315 /* Also set CPU ports to the "user" VLAN port attribute, to
1316 * allow VLAN classification, but keep the EG_TAG attribute as
1317 * "consistent" (i.o.w. don't change its value) for packets
1318 * received by the switch from the CPU, so that tagged packets
1319 * are forwarded to user ports as tagged, and untagged as
1322 mt7530_rmw(priv, MT7530_PVC_P(port), VLAN_ATTR_MASK,
1323 VLAN_ATTR(MT7530_VLAN_USER));
1328 mt7530_port_bridge_leave(struct dsa_switch *ds, int port,
1329 struct dsa_bridge bridge)
1331 struct dsa_port *dp = dsa_to_port(ds, port), *other_dp;
1332 struct dsa_port *cpu_dp = dp->cpu_dp;
1333 struct mt7530_priv *priv = ds->priv;
1335 mutex_lock(&priv->reg_mutex);
1337 dsa_switch_for_each_user_port(other_dp, ds) {
1338 int other_port = other_dp->index;
1343 /* Remove this port from the port matrix of the other ports
1344 * in the same bridge. If the port is disabled, port matrix
1345 * is kept and not being setup until the port becomes enabled.
1347 if (!dsa_port_offloads_bridge(other_dp, &bridge))
1350 if (priv->ports[other_port].enable)
1351 mt7530_clear(priv, MT7530_PCR_P(other_port),
1352 PCR_MATRIX(BIT(port)));
1353 priv->ports[other_port].pm &= ~PCR_MATRIX(BIT(port));
1356 /* Set the cpu port to be the only one in the port matrix of
1359 if (priv->ports[port].enable)
1360 mt7530_rmw(priv, MT7530_PCR_P(port), PCR_MATRIX_MASK,
1361 PCR_MATRIX(BIT(cpu_dp->index)));
1362 priv->ports[port].pm = PCR_MATRIX(BIT(cpu_dp->index));
1364 /* When a port is removed from the bridge, the port would be set up
1365 * back to the default as is at initial boot which is a VLAN-unaware
1368 mt7530_rmw(priv, MT7530_PCR_P(port), PCR_PORT_VLAN_MASK,
1369 MT7530_PORT_MATRIX_MODE);
1371 mutex_unlock(&priv->reg_mutex);
1375 mt7530_port_fdb_add(struct dsa_switch *ds, int port,
1376 const unsigned char *addr, u16 vid,
1379 struct mt7530_priv *priv = ds->priv;
1381 u8 port_mask = BIT(port);
1383 mutex_lock(&priv->reg_mutex);
1384 mt7530_fdb_write(priv, vid, port_mask, addr, -1, STATIC_ENT);
1385 ret = mt7530_fdb_cmd(priv, MT7530_FDB_WRITE, NULL);
1386 mutex_unlock(&priv->reg_mutex);
1392 mt7530_port_fdb_del(struct dsa_switch *ds, int port,
1393 const unsigned char *addr, u16 vid,
1396 struct mt7530_priv *priv = ds->priv;
1398 u8 port_mask = BIT(port);
1400 mutex_lock(&priv->reg_mutex);
1401 mt7530_fdb_write(priv, vid, port_mask, addr, -1, STATIC_EMP);
1402 ret = mt7530_fdb_cmd(priv, MT7530_FDB_WRITE, NULL);
1403 mutex_unlock(&priv->reg_mutex);
1409 mt7530_port_fdb_dump(struct dsa_switch *ds, int port,
1410 dsa_fdb_dump_cb_t *cb, void *data)
1412 struct mt7530_priv *priv = ds->priv;
1413 struct mt7530_fdb _fdb = { 0 };
1414 int cnt = MT7530_NUM_FDB_RECORDS;
1418 mutex_lock(&priv->reg_mutex);
1420 ret = mt7530_fdb_cmd(priv, MT7530_FDB_START, &rsp);
1425 if (rsp & ATC_SRCH_HIT) {
1426 mt7530_fdb_read(priv, &_fdb);
1427 if (_fdb.port_mask & BIT(port)) {
1428 ret = cb(_fdb.mac, _fdb.vid, _fdb.noarp,
1435 !(rsp & ATC_SRCH_END) &&
1436 !mt7530_fdb_cmd(priv, MT7530_FDB_NEXT, &rsp));
1438 mutex_unlock(&priv->reg_mutex);
1444 mt7530_port_mdb_add(struct dsa_switch *ds, int port,
1445 const struct switchdev_obj_port_mdb *mdb,
1448 struct mt7530_priv *priv = ds->priv;
1449 const u8 *addr = mdb->addr;
1454 mutex_lock(&priv->reg_mutex);
1456 mt7530_fdb_write(priv, vid, 0, addr, 0, STATIC_EMP);
1457 if (!mt7530_fdb_cmd(priv, MT7530_FDB_READ, NULL))
1458 port_mask = (mt7530_read(priv, MT7530_ATRD) >> PORT_MAP)
1461 port_mask |= BIT(port);
1462 mt7530_fdb_write(priv, vid, port_mask, addr, -1, STATIC_ENT);
1463 ret = mt7530_fdb_cmd(priv, MT7530_FDB_WRITE, NULL);
1465 mutex_unlock(&priv->reg_mutex);
1471 mt7530_port_mdb_del(struct dsa_switch *ds, int port,
1472 const struct switchdev_obj_port_mdb *mdb,
1475 struct mt7530_priv *priv = ds->priv;
1476 const u8 *addr = mdb->addr;
1481 mutex_lock(&priv->reg_mutex);
1483 mt7530_fdb_write(priv, vid, 0, addr, 0, STATIC_EMP);
1484 if (!mt7530_fdb_cmd(priv, MT7530_FDB_READ, NULL))
1485 port_mask = (mt7530_read(priv, MT7530_ATRD) >> PORT_MAP)
1488 port_mask &= ~BIT(port);
1489 mt7530_fdb_write(priv, vid, port_mask, addr, -1,
1490 port_mask ? STATIC_ENT : STATIC_EMP);
1491 ret = mt7530_fdb_cmd(priv, MT7530_FDB_WRITE, NULL);
1493 mutex_unlock(&priv->reg_mutex);
1499 mt7530_vlan_cmd(struct mt7530_priv *priv, enum mt7530_vlan_cmd cmd, u16 vid)
1501 struct mt7530_dummy_poll p;
1505 val = VTCR_BUSY | VTCR_FUNC(cmd) | vid;
1506 mt7530_write(priv, MT7530_VTCR, val);
1508 INIT_MT7530_DUMMY_POLL(&p, priv, MT7530_VTCR);
1509 ret = readx_poll_timeout(_mt7530_read, &p, val,
1510 !(val & VTCR_BUSY), 20, 20000);
1512 dev_err(priv->dev, "poll timeout\n");
1516 val = mt7530_read(priv, MT7530_VTCR);
1517 if (val & VTCR_INVALID) {
1518 dev_err(priv->dev, "read VTCR invalid\n");
1526 mt7530_port_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering,
1527 struct netlink_ext_ack *extack)
1529 struct dsa_port *dp = dsa_to_port(ds, port);
1530 struct dsa_port *cpu_dp = dp->cpu_dp;
1532 if (vlan_filtering) {
1533 /* The port is being kept as VLAN-unaware port when bridge is
1534 * set up with vlan_filtering not being set, Otherwise, the
1535 * port and the corresponding CPU port is required the setup
1536 * for becoming a VLAN-aware port.
1538 mt7530_port_set_vlan_aware(ds, port);
1539 mt7530_port_set_vlan_aware(ds, cpu_dp->index);
1541 mt7530_port_set_vlan_unaware(ds, port);
1548 mt7530_hw_vlan_add(struct mt7530_priv *priv,
1549 struct mt7530_hw_vlan_entry *entry)
1551 struct dsa_port *dp = dsa_to_port(priv->ds, entry->port);
1555 new_members = entry->old_members | BIT(entry->port);
1557 /* Validate the entry with independent learning, create egress tag per
1558 * VLAN and joining the port as one of the port members.
1560 val = IVL_MAC | VTAG_EN | PORT_MEM(new_members) | FID(FID_BRIDGED) |
1562 mt7530_write(priv, MT7530_VAWD1, val);
1564 /* Decide whether adding tag or not for those outgoing packets from the
1565 * port inside the VLAN.
1566 * CPU port is always taken as a tagged port for serving more than one
1567 * VLANs across and also being applied with egress type stack mode for
1568 * that VLAN tags would be appended after hardware special tag used as
1571 if (dsa_port_is_cpu(dp))
1572 val = MT7530_VLAN_EGRESS_STACK;
1573 else if (entry->untagged)
1574 val = MT7530_VLAN_EGRESS_UNTAG;
1576 val = MT7530_VLAN_EGRESS_TAG;
1577 mt7530_rmw(priv, MT7530_VAWD2,
1578 ETAG_CTRL_P_MASK(entry->port),
1579 ETAG_CTRL_P(entry->port, val));
1583 mt7530_hw_vlan_del(struct mt7530_priv *priv,
1584 struct mt7530_hw_vlan_entry *entry)
1589 new_members = entry->old_members & ~BIT(entry->port);
1591 val = mt7530_read(priv, MT7530_VAWD1);
1592 if (!(val & VLAN_VALID)) {
1594 "Cannot be deleted due to invalid entry\n");
1599 val = IVL_MAC | VTAG_EN | PORT_MEM(new_members) |
1601 mt7530_write(priv, MT7530_VAWD1, val);
1603 mt7530_write(priv, MT7530_VAWD1, 0);
1604 mt7530_write(priv, MT7530_VAWD2, 0);
1609 mt7530_hw_vlan_update(struct mt7530_priv *priv, u16 vid,
1610 struct mt7530_hw_vlan_entry *entry,
1611 mt7530_vlan_op vlan_op)
1616 mt7530_vlan_cmd(priv, MT7530_VTCR_RD_VID, vid);
1618 val = mt7530_read(priv, MT7530_VAWD1);
1620 entry->old_members = (val >> PORT_MEM_SHFT) & PORT_MEM_MASK;
1622 /* Manipulate entry */
1623 vlan_op(priv, entry);
1625 /* Flush result to hardware */
1626 mt7530_vlan_cmd(priv, MT7530_VTCR_WR_VID, vid);
1630 mt7530_setup_vlan0(struct mt7530_priv *priv)
1634 /* Validate the entry with independent learning, keep the original
1635 * ingress tag attribute.
1637 val = IVL_MAC | EG_CON | PORT_MEM(MT7530_ALL_MEMBERS) | FID(FID_BRIDGED) |
1639 mt7530_write(priv, MT7530_VAWD1, val);
1641 return mt7530_vlan_cmd(priv, MT7530_VTCR_WR_VID, 0);
1645 mt7530_port_vlan_add(struct dsa_switch *ds, int port,
1646 const struct switchdev_obj_port_vlan *vlan,
1647 struct netlink_ext_ack *extack)
1649 bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
1650 bool pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
1651 struct mt7530_hw_vlan_entry new_entry;
1652 struct mt7530_priv *priv = ds->priv;
1654 mutex_lock(&priv->reg_mutex);
1656 mt7530_hw_vlan_entry_init(&new_entry, port, untagged);
1657 mt7530_hw_vlan_update(priv, vlan->vid, &new_entry, mt7530_hw_vlan_add);
1660 priv->ports[port].pvid = vlan->vid;
1662 /* Accept all frames if PVID is set */
1663 mt7530_rmw(priv, MT7530_PVC_P(port), ACC_FRM_MASK,
1664 MT7530_VLAN_ACC_ALL);
1666 /* Only configure PVID if VLAN filtering is enabled */
1667 if (dsa_port_is_vlan_filtering(dsa_to_port(ds, port)))
1668 mt7530_rmw(priv, MT7530_PPBV1_P(port),
1670 G0_PORT_VID(vlan->vid));
1671 } else if (vlan->vid && priv->ports[port].pvid == vlan->vid) {
1672 /* This VLAN is overwritten without PVID, so unset it */
1673 priv->ports[port].pvid = G0_PORT_VID_DEF;
1675 /* Only accept tagged frames if the port is VLAN-aware */
1676 if (dsa_port_is_vlan_filtering(dsa_to_port(ds, port)))
1677 mt7530_rmw(priv, MT7530_PVC_P(port), ACC_FRM_MASK,
1678 MT7530_VLAN_ACC_TAGGED);
1680 mt7530_rmw(priv, MT7530_PPBV1_P(port), G0_PORT_VID_MASK,
1684 mutex_unlock(&priv->reg_mutex);
1690 mt7530_port_vlan_del(struct dsa_switch *ds, int port,
1691 const struct switchdev_obj_port_vlan *vlan)
1693 struct mt7530_hw_vlan_entry target_entry;
1694 struct mt7530_priv *priv = ds->priv;
1696 mutex_lock(&priv->reg_mutex);
1698 mt7530_hw_vlan_entry_init(&target_entry, port, 0);
1699 mt7530_hw_vlan_update(priv, vlan->vid, &target_entry,
1700 mt7530_hw_vlan_del);
1702 /* PVID is being restored to the default whenever the PVID port
1703 * is being removed from the VLAN.
1705 if (priv->ports[port].pvid == vlan->vid) {
1706 priv->ports[port].pvid = G0_PORT_VID_DEF;
1708 /* Only accept tagged frames if the port is VLAN-aware */
1709 if (dsa_port_is_vlan_filtering(dsa_to_port(ds, port)))
1710 mt7530_rmw(priv, MT7530_PVC_P(port), ACC_FRM_MASK,
1711 MT7530_VLAN_ACC_TAGGED);
1713 mt7530_rmw(priv, MT7530_PPBV1_P(port), G0_PORT_VID_MASK,
1718 mutex_unlock(&priv->reg_mutex);
1723 static int mt753x_mirror_port_get(unsigned int id, u32 val)
1725 return (id == ID_MT7531) ? MT7531_MIRROR_PORT_GET(val) :
1729 static int mt753x_mirror_port_set(unsigned int id, u32 val)
1731 return (id == ID_MT7531) ? MT7531_MIRROR_PORT_SET(val) :
1735 static int mt753x_port_mirror_add(struct dsa_switch *ds, int port,
1736 struct dsa_mall_mirror_tc_entry *mirror,
1737 bool ingress, struct netlink_ext_ack *extack)
1739 struct mt7530_priv *priv = ds->priv;
1743 /* Check for existent entry */
1744 if ((ingress ? priv->mirror_rx : priv->mirror_tx) & BIT(port))
1747 val = mt7530_read(priv, MT753X_MIRROR_REG(priv->id));
1749 /* MT7530 only supports one monitor port */
1750 monitor_port = mt753x_mirror_port_get(priv->id, val);
1751 if (val & MT753X_MIRROR_EN(priv->id) &&
1752 monitor_port != mirror->to_local_port)
1755 val |= MT753X_MIRROR_EN(priv->id);
1756 val &= ~MT753X_MIRROR_MASK(priv->id);
1757 val |= mt753x_mirror_port_set(priv->id, mirror->to_local_port);
1758 mt7530_write(priv, MT753X_MIRROR_REG(priv->id), val);
1760 val = mt7530_read(priv, MT7530_PCR_P(port));
1763 priv->mirror_rx |= BIT(port);
1766 priv->mirror_tx |= BIT(port);
1768 mt7530_write(priv, MT7530_PCR_P(port), val);
1773 static void mt753x_port_mirror_del(struct dsa_switch *ds, int port,
1774 struct dsa_mall_mirror_tc_entry *mirror)
1776 struct mt7530_priv *priv = ds->priv;
1779 val = mt7530_read(priv, MT7530_PCR_P(port));
1780 if (mirror->ingress) {
1781 val &= ~PORT_RX_MIR;
1782 priv->mirror_rx &= ~BIT(port);
1784 val &= ~PORT_TX_MIR;
1785 priv->mirror_tx &= ~BIT(port);
1787 mt7530_write(priv, MT7530_PCR_P(port), val);
1789 if (!priv->mirror_rx && !priv->mirror_tx) {
1790 val = mt7530_read(priv, MT753X_MIRROR_REG(priv->id));
1791 val &= ~MT753X_MIRROR_EN(priv->id);
1792 mt7530_write(priv, MT753X_MIRROR_REG(priv->id), val);
1796 static enum dsa_tag_protocol
1797 mtk_get_tag_protocol(struct dsa_switch *ds, int port,
1798 enum dsa_tag_protocol mp)
1800 return DSA_TAG_PROTO_MTK;
1803 #ifdef CONFIG_GPIOLIB
1805 mt7530_gpio_to_bit(unsigned int offset)
1807 /* Map GPIO offset to register bit
1808 * [ 2: 0] port 0 LED 0..2 as GPIO 0..2
1809 * [ 6: 4] port 1 LED 0..2 as GPIO 3..5
1810 * [10: 8] port 2 LED 0..2 as GPIO 6..8
1811 * [14:12] port 3 LED 0..2 as GPIO 9..11
1812 * [18:16] port 4 LED 0..2 as GPIO 12..14
1814 return BIT(offset + offset / 3);
1818 mt7530_gpio_get(struct gpio_chip *gc, unsigned int offset)
1820 struct mt7530_priv *priv = gpiochip_get_data(gc);
1821 u32 bit = mt7530_gpio_to_bit(offset);
1823 return !!(mt7530_read(priv, MT7530_LED_GPIO_DATA) & bit);
1827 mt7530_gpio_set(struct gpio_chip *gc, unsigned int offset, int value)
1829 struct mt7530_priv *priv = gpiochip_get_data(gc);
1830 u32 bit = mt7530_gpio_to_bit(offset);
1833 mt7530_set(priv, MT7530_LED_GPIO_DATA, bit);
1835 mt7530_clear(priv, MT7530_LED_GPIO_DATA, bit);
1839 mt7530_gpio_get_direction(struct gpio_chip *gc, unsigned int offset)
1841 struct mt7530_priv *priv = gpiochip_get_data(gc);
1842 u32 bit = mt7530_gpio_to_bit(offset);
1844 return (mt7530_read(priv, MT7530_LED_GPIO_DIR) & bit) ?
1845 GPIO_LINE_DIRECTION_OUT : GPIO_LINE_DIRECTION_IN;
1849 mt7530_gpio_direction_input(struct gpio_chip *gc, unsigned int offset)
1851 struct mt7530_priv *priv = gpiochip_get_data(gc);
1852 u32 bit = mt7530_gpio_to_bit(offset);
1854 mt7530_clear(priv, MT7530_LED_GPIO_OE, bit);
1855 mt7530_clear(priv, MT7530_LED_GPIO_DIR, bit);
1861 mt7530_gpio_direction_output(struct gpio_chip *gc, unsigned int offset, int value)
1863 struct mt7530_priv *priv = gpiochip_get_data(gc);
1864 u32 bit = mt7530_gpio_to_bit(offset);
1866 mt7530_set(priv, MT7530_LED_GPIO_DIR, bit);
1869 mt7530_set(priv, MT7530_LED_GPIO_DATA, bit);
1871 mt7530_clear(priv, MT7530_LED_GPIO_DATA, bit);
1873 mt7530_set(priv, MT7530_LED_GPIO_OE, bit);
1879 mt7530_setup_gpio(struct mt7530_priv *priv)
1881 struct device *dev = priv->dev;
1882 struct gpio_chip *gc;
1884 gc = devm_kzalloc(dev, sizeof(*gc), GFP_KERNEL);
1888 mt7530_write(priv, MT7530_LED_GPIO_OE, 0);
1889 mt7530_write(priv, MT7530_LED_GPIO_DIR, 0);
1890 mt7530_write(priv, MT7530_LED_IO_MODE, 0);
1892 gc->label = "mt7530";
1894 gc->owner = THIS_MODULE;
1895 gc->get_direction = mt7530_gpio_get_direction;
1896 gc->direction_input = mt7530_gpio_direction_input;
1897 gc->direction_output = mt7530_gpio_direction_output;
1898 gc->get = mt7530_gpio_get;
1899 gc->set = mt7530_gpio_set;
1902 gc->can_sleep = true;
1904 return devm_gpiochip_add_data(dev, gc, priv);
1906 #endif /* CONFIG_GPIOLIB */
1909 mt7530_irq_thread_fn(int irq, void *dev_id)
1911 struct mt7530_priv *priv = dev_id;
1912 bool handled = false;
1916 mt7530_mutex_lock(priv);
1917 val = mt7530_mii_read(priv, MT7530_SYS_INT_STS);
1918 mt7530_mii_write(priv, MT7530_SYS_INT_STS, val);
1919 mt7530_mutex_unlock(priv);
1921 for (p = 0; p < MT7530_NUM_PHYS; p++) {
1925 irq = irq_find_mapping(priv->irq_domain, p);
1926 handle_nested_irq(irq);
1931 return IRQ_RETVAL(handled);
1935 mt7530_irq_mask(struct irq_data *d)
1937 struct mt7530_priv *priv = irq_data_get_irq_chip_data(d);
1939 priv->irq_enable &= ~BIT(d->hwirq);
1943 mt7530_irq_unmask(struct irq_data *d)
1945 struct mt7530_priv *priv = irq_data_get_irq_chip_data(d);
1947 priv->irq_enable |= BIT(d->hwirq);
1951 mt7530_irq_bus_lock(struct irq_data *d)
1953 struct mt7530_priv *priv = irq_data_get_irq_chip_data(d);
1955 mt7530_mutex_lock(priv);
1959 mt7530_irq_bus_sync_unlock(struct irq_data *d)
1961 struct mt7530_priv *priv = irq_data_get_irq_chip_data(d);
1963 mt7530_mii_write(priv, MT7530_SYS_INT_EN, priv->irq_enable);
1964 mt7530_mutex_unlock(priv);
1967 static struct irq_chip mt7530_irq_chip = {
1968 .name = KBUILD_MODNAME,
1969 .irq_mask = mt7530_irq_mask,
1970 .irq_unmask = mt7530_irq_unmask,
1971 .irq_bus_lock = mt7530_irq_bus_lock,
1972 .irq_bus_sync_unlock = mt7530_irq_bus_sync_unlock,
1976 mt7530_irq_map(struct irq_domain *domain, unsigned int irq,
1977 irq_hw_number_t hwirq)
1979 irq_set_chip_data(irq, domain->host_data);
1980 irq_set_chip_and_handler(irq, &mt7530_irq_chip, handle_simple_irq);
1981 irq_set_nested_thread(irq, true);
1982 irq_set_noprobe(irq);
1987 static const struct irq_domain_ops mt7530_irq_domain_ops = {
1988 .map = mt7530_irq_map,
1989 .xlate = irq_domain_xlate_onecell,
1993 mt7988_irq_mask(struct irq_data *d)
1995 struct mt7530_priv *priv = irq_data_get_irq_chip_data(d);
1997 priv->irq_enable &= ~BIT(d->hwirq);
1998 mt7530_mii_write(priv, MT7530_SYS_INT_EN, priv->irq_enable);
2002 mt7988_irq_unmask(struct irq_data *d)
2004 struct mt7530_priv *priv = irq_data_get_irq_chip_data(d);
2006 priv->irq_enable |= BIT(d->hwirq);
2007 mt7530_mii_write(priv, MT7530_SYS_INT_EN, priv->irq_enable);
2010 static struct irq_chip mt7988_irq_chip = {
2011 .name = KBUILD_MODNAME,
2012 .irq_mask = mt7988_irq_mask,
2013 .irq_unmask = mt7988_irq_unmask,
2017 mt7988_irq_map(struct irq_domain *domain, unsigned int irq,
2018 irq_hw_number_t hwirq)
2020 irq_set_chip_data(irq, domain->host_data);
2021 irq_set_chip_and_handler(irq, &mt7988_irq_chip, handle_simple_irq);
2022 irq_set_nested_thread(irq, true);
2023 irq_set_noprobe(irq);
2028 static const struct irq_domain_ops mt7988_irq_domain_ops = {
2029 .map = mt7988_irq_map,
2030 .xlate = irq_domain_xlate_onecell,
2034 mt7530_setup_mdio_irq(struct mt7530_priv *priv)
2036 struct dsa_switch *ds = priv->ds;
2039 for (p = 0; p < MT7530_NUM_PHYS; p++) {
2040 if (BIT(p) & ds->phys_mii_mask) {
2043 irq = irq_create_mapping(priv->irq_domain, p);
2044 ds->user_mii_bus->irq[p] = irq;
2050 mt7530_setup_irq(struct mt7530_priv *priv)
2052 struct device *dev = priv->dev;
2053 struct device_node *np = dev->of_node;
2056 if (!of_property_read_bool(np, "interrupt-controller")) {
2057 dev_info(dev, "no interrupt support\n");
2061 priv->irq = of_irq_get(np, 0);
2062 if (priv->irq <= 0) {
2063 dev_err(dev, "failed to get parent IRQ: %d\n", priv->irq);
2064 return priv->irq ? : -EINVAL;
2067 if (priv->id == ID_MT7988)
2068 priv->irq_domain = irq_domain_add_linear(np, MT7530_NUM_PHYS,
2069 &mt7988_irq_domain_ops,
2072 priv->irq_domain = irq_domain_add_linear(np, MT7530_NUM_PHYS,
2073 &mt7530_irq_domain_ops,
2076 if (!priv->irq_domain) {
2077 dev_err(dev, "failed to create IRQ domain\n");
2081 /* This register must be set for MT7530 to properly fire interrupts */
2082 if (priv->id == ID_MT7530 || priv->id == ID_MT7621)
2083 mt7530_set(priv, MT7530_TOP_SIG_CTRL, TOP_SIG_CTRL_NORMAL);
2085 ret = request_threaded_irq(priv->irq, NULL, mt7530_irq_thread_fn,
2086 IRQF_ONESHOT, KBUILD_MODNAME, priv);
2088 irq_domain_remove(priv->irq_domain);
2089 dev_err(dev, "failed to request IRQ: %d\n", ret);
2097 mt7530_free_mdio_irq(struct mt7530_priv *priv)
2101 for (p = 0; p < MT7530_NUM_PHYS; p++) {
2102 if (BIT(p) & priv->ds->phys_mii_mask) {
2105 irq = irq_find_mapping(priv->irq_domain, p);
2106 irq_dispose_mapping(irq);
2112 mt7530_free_irq_common(struct mt7530_priv *priv)
2114 free_irq(priv->irq, priv);
2115 irq_domain_remove(priv->irq_domain);
2119 mt7530_free_irq(struct mt7530_priv *priv)
2121 struct device_node *mnp, *np = priv->dev->of_node;
2123 mnp = of_get_child_by_name(np, "mdio");
2125 mt7530_free_mdio_irq(priv);
2128 mt7530_free_irq_common(priv);
2132 mt7530_setup_mdio(struct mt7530_priv *priv)
2134 struct device_node *mnp, *np = priv->dev->of_node;
2135 struct dsa_switch *ds = priv->ds;
2136 struct device *dev = priv->dev;
2137 struct mii_bus *bus;
2141 mnp = of_get_child_by_name(np, "mdio");
2143 if (mnp && !of_device_is_available(mnp))
2146 bus = devm_mdiobus_alloc(dev);
2153 ds->user_mii_bus = bus;
2156 bus->name = KBUILD_MODNAME "-mii";
2157 snprintf(bus->id, MII_BUS_ID_SIZE, KBUILD_MODNAME "-%d", idx++);
2158 bus->read = mt753x_phy_read_c22;
2159 bus->write = mt753x_phy_write_c22;
2160 bus->read_c45 = mt753x_phy_read_c45;
2161 bus->write_c45 = mt753x_phy_write_c45;
2163 bus->phy_mask = ~ds->phys_mii_mask;
2165 if (priv->irq && !mnp)
2166 mt7530_setup_mdio_irq(priv);
2168 ret = devm_of_mdiobus_register(dev, bus, mnp);
2170 dev_err(dev, "failed to register MDIO bus: %d\n", ret);
2171 if (priv->irq && !mnp)
2172 mt7530_free_mdio_irq(priv);
2181 mt7530_setup(struct dsa_switch *ds)
2183 struct mt7530_priv *priv = ds->priv;
2184 struct device_node *dn = NULL;
2185 struct device_node *phy_node;
2186 struct device_node *mac_np;
2187 struct mt7530_dummy_poll p;
2188 phy_interface_t interface;
2189 struct dsa_port *cpu_dp;
2193 /* The parent node of conduit netdev which holds the common system
2194 * controller also is the container for two GMACs nodes representing
2195 * as two netdev instances.
2197 dsa_switch_for_each_cpu_port(cpu_dp, ds) {
2198 dn = cpu_dp->conduit->dev.of_node->parent;
2199 /* It doesn't matter which CPU port is found first,
2200 * their conduits should share the same parent OF node
2206 dev_err(ds->dev, "parent OF node of DSA conduit not found");
2210 ds->assisted_learning_on_cpu_port = true;
2211 ds->mtu_enforcement_ingress = true;
2213 if (priv->id == ID_MT7530) {
2214 regulator_set_voltage(priv->core_pwr, 1000000, 1000000);
2215 ret = regulator_enable(priv->core_pwr);
2218 "Failed to enable core power: %d\n", ret);
2222 regulator_set_voltage(priv->io_pwr, 3300000, 3300000);
2223 ret = regulator_enable(priv->io_pwr);
2225 dev_err(priv->dev, "Failed to enable io pwr: %d\n",
2231 /* Reset whole chip through gpio pin or memory-mapped registers for
2232 * different type of hardware
2235 reset_control_assert(priv->rstc);
2236 usleep_range(5000, 5100);
2237 reset_control_deassert(priv->rstc);
2239 gpiod_set_value_cansleep(priv->reset, 0);
2240 usleep_range(5000, 5100);
2241 gpiod_set_value_cansleep(priv->reset, 1);
2244 /* Waiting for MT7530 got to stable */
2245 INIT_MT7530_DUMMY_POLL(&p, priv, MT7530_HWTRAP);
2246 ret = readx_poll_timeout(_mt7530_read, &p, val, val != 0,
2249 dev_err(priv->dev, "reset timeout\n");
2253 id = mt7530_read(priv, MT7530_CREV);
2254 id >>= CHIP_NAME_SHIFT;
2255 if (id != MT7530_ID) {
2256 dev_err(priv->dev, "chip %x can't be supported\n", id);
2260 if ((val & HWTRAP_XTAL_MASK) == HWTRAP_XTAL_20MHZ) {
2262 "MT7530 with a 20MHz XTAL is not supported!\n");
2266 /* Reset the switch through internal reset */
2267 mt7530_write(priv, MT7530_SYS_CTRL,
2268 SYS_CTRL_PHY_RST | SYS_CTRL_SW_RST |
2271 /* Lower Tx driving for TRGMII path */
2272 for (i = 0; i < NUM_TRGMII_CTRL; i++)
2273 mt7530_write(priv, MT7530_TRGMII_TD_ODT(i),
2274 TD_DM_DRVP(8) | TD_DM_DRVN(8));
2276 for (i = 0; i < NUM_TRGMII_CTRL; i++)
2277 mt7530_rmw(priv, MT7530_TRGMII_RD(i),
2278 RD_TAP_MASK, RD_TAP(16));
2281 val = mt7530_read(priv, MT7530_MHWTRAP);
2282 val &= ~MHWTRAP_P6_DIS & ~MHWTRAP_PHY_ACCESS;
2283 val |= MHWTRAP_MANUAL;
2284 mt7530_write(priv, MT7530_MHWTRAP, val);
2286 if ((val & HWTRAP_XTAL_MASK) == HWTRAP_XTAL_40MHZ)
2287 mt7530_pll_setup(priv);
2289 mt753x_trap_frames(priv);
2291 /* Enable and reset MIB counters */
2292 mt7530_mib_reset(ds);
2294 for (i = 0; i < MT7530_NUM_PORTS; i++) {
2295 /* Clear link settings and enable force mode to force link down
2296 * on all ports until they're enabled later.
2298 mt7530_rmw(priv, MT7530_PMCR_P(i), PMCR_LINK_SETTINGS_MASK |
2299 PMCR_FORCE_MODE, PMCR_FORCE_MODE);
2301 /* Disable forwarding by default on all ports */
2302 mt7530_rmw(priv, MT7530_PCR_P(i), PCR_MATRIX_MASK,
2305 /* Disable learning by default on all ports */
2306 mt7530_set(priv, MT7530_PSC_P(i), SA_DIS);
2308 if (dsa_is_cpu_port(ds, i)) {
2309 mt753x_cpu_port_enable(ds, i);
2311 mt7530_port_disable(ds, i);
2313 /* Set default PVID to 0 on all user ports */
2314 mt7530_rmw(priv, MT7530_PPBV1_P(i), G0_PORT_VID_MASK,
2317 /* Enable consistent egress tag */
2318 mt7530_rmw(priv, MT7530_PVC_P(i), PVC_EG_TAG_MASK,
2319 PVC_EG_TAG(MT7530_VLAN_EG_CONSISTENT));
2322 /* Setup VLAN ID 0 for VLAN-unaware bridges */
2323 ret = mt7530_setup_vlan0(priv);
2328 if (!dsa_is_unused_port(ds, 5)) {
2329 priv->p5_intf_sel = P5_INTF_SEL_GMAC5;
2331 /* Scan the ethernet nodes. Look for GMAC1, lookup the used PHY.
2332 * Set priv->p5_intf_sel to the appropriate value if PHY muxing
2335 for_each_child_of_node(dn, mac_np) {
2336 if (!of_device_is_compatible(mac_np,
2337 "mediatek,eth-mac"))
2340 ret = of_property_read_u32(mac_np, "reg", &id);
2341 if (ret < 0 || id != 1)
2344 phy_node = of_parse_phandle(mac_np, "phy-handle", 0);
2348 if (phy_node->parent == priv->dev->of_node->parent) {
2349 ret = of_get_phy_mode(mac_np, &interface);
2350 if (ret && ret != -ENODEV) {
2351 of_node_put(mac_np);
2352 of_node_put(phy_node);
2355 id = of_mdio_parse_addr(ds->dev, phy_node);
2357 priv->p5_intf_sel = P5_INTF_SEL_PHY_P0;
2359 priv->p5_intf_sel = P5_INTF_SEL_PHY_P4;
2361 of_node_put(mac_np);
2362 of_node_put(phy_node);
2366 if (priv->p5_intf_sel == P5_INTF_SEL_PHY_P0 ||
2367 priv->p5_intf_sel == P5_INTF_SEL_PHY_P4)
2368 mt7530_setup_port5(ds, interface);
2371 #ifdef CONFIG_GPIOLIB
2372 if (of_property_read_bool(priv->dev->of_node, "gpio-controller")) {
2373 ret = mt7530_setup_gpio(priv);
2377 #endif /* CONFIG_GPIOLIB */
2379 /* Flush the FDB table */
2380 ret = mt7530_fdb_cmd(priv, MT7530_FDB_FLUSH, NULL);
2388 mt7531_setup_common(struct dsa_switch *ds)
2390 struct mt7530_priv *priv = ds->priv;
2393 mt753x_trap_frames(priv);
2395 /* Enable and reset MIB counters */
2396 mt7530_mib_reset(ds);
2398 /* Disable flooding on all ports */
2399 mt7530_clear(priv, MT7530_MFC, BC_FFP_MASK | UNM_FFP_MASK |
2402 for (i = 0; i < MT7530_NUM_PORTS; i++) {
2403 /* Clear link settings and enable force mode to force link down
2404 * on all ports until they're enabled later.
2406 mt7530_rmw(priv, MT7530_PMCR_P(i), PMCR_LINK_SETTINGS_MASK |
2407 MT7531_FORCE_MODE, MT7531_FORCE_MODE);
2409 /* Disable forwarding by default on all ports */
2410 mt7530_rmw(priv, MT7530_PCR_P(i), PCR_MATRIX_MASK,
2413 /* Disable learning by default on all ports */
2414 mt7530_set(priv, MT7530_PSC_P(i), SA_DIS);
2416 mt7530_set(priv, MT7531_DBG_CNT(i), MT7531_DIS_CLR);
2418 if (dsa_is_cpu_port(ds, i)) {
2419 mt753x_cpu_port_enable(ds, i);
2421 mt7530_port_disable(ds, i);
2423 /* Set default PVID to 0 on all user ports */
2424 mt7530_rmw(priv, MT7530_PPBV1_P(i), G0_PORT_VID_MASK,
2428 /* Enable consistent egress tag */
2429 mt7530_rmw(priv, MT7530_PVC_P(i), PVC_EG_TAG_MASK,
2430 PVC_EG_TAG(MT7530_VLAN_EG_CONSISTENT));
2433 /* Flush the FDB table */
2434 ret = mt7530_fdb_cmd(priv, MT7530_FDB_FLUSH, NULL);
2442 mt7531_setup(struct dsa_switch *ds)
2444 struct mt7530_priv *priv = ds->priv;
2445 struct mt7530_dummy_poll p;
2449 /* Reset whole chip through gpio pin or memory-mapped registers for
2450 * different type of hardware
2453 reset_control_assert(priv->rstc);
2454 usleep_range(5000, 5100);
2455 reset_control_deassert(priv->rstc);
2457 gpiod_set_value_cansleep(priv->reset, 0);
2458 usleep_range(5000, 5100);
2459 gpiod_set_value_cansleep(priv->reset, 1);
2462 /* Waiting for MT7530 got to stable */
2463 INIT_MT7530_DUMMY_POLL(&p, priv, MT7530_HWTRAP);
2464 ret = readx_poll_timeout(_mt7530_read, &p, val, val != 0,
2467 dev_err(priv->dev, "reset timeout\n");
2471 id = mt7530_read(priv, MT7531_CREV);
2472 id >>= CHIP_NAME_SHIFT;
2474 if (id != MT7531_ID) {
2475 dev_err(priv->dev, "chip %x can't be supported\n", id);
2479 /* MT7531AE has got two SGMII units. One for port 5, one for port 6.
2480 * MT7531BE has got only one SGMII unit which is for port 6.
2482 val = mt7530_read(priv, MT7531_TOP_SIG_SR);
2483 priv->p5_sgmii = !!(val & PAD_DUAL_SGMII_EN);
2485 /* Force link down on all ports before internal reset */
2486 for (i = 0; i < MT7530_NUM_PORTS; i++)
2487 mt7530_write(priv, MT7530_PMCR_P(i), MT7531_FORCE_LNK);
2489 /* Reset the switch through internal reset */
2490 mt7530_write(priv, MT7530_SYS_CTRL, SYS_CTRL_SW_RST | SYS_CTRL_REG_RST);
2492 if (!priv->p5_sgmii) {
2493 mt7531_pll_setup(priv);
2495 /* Let ds->user_mii_bus be able to access external phy. */
2496 mt7530_rmw(priv, MT7531_GPIO_MODE1, MT7531_GPIO11_RG_RXD2_MASK,
2497 MT7531_EXT_P_MDC_11);
2498 mt7530_rmw(priv, MT7531_GPIO_MODE1, MT7531_GPIO12_RG_RXD3_MASK,
2499 MT7531_EXT_P_MDIO_12);
2502 if (!dsa_is_unused_port(ds, 5))
2503 priv->p5_intf_sel = P5_INTF_SEL_GMAC5;
2505 mt7530_rmw(priv, MT7531_GPIO_MODE0, MT7531_GPIO0_MASK,
2506 MT7531_GPIO0_INTERRUPT);
2508 /* Enable PHY core PLL, since phy_device has not yet been created
2509 * provided for phy_[read,write]_mmd_indirect is called, we provide
2510 * our own mt7531_ind_mmd_phy_[read,write] to complete this
2513 val = mt7531_ind_c45_phy_read(priv, MT753X_CTRL_PHY_ADDR,
2514 MDIO_MMD_VEND2, CORE_PLL_GROUP4);
2515 val |= MT7531_PHY_PLL_BYPASS_MODE;
2516 val &= ~MT7531_PHY_PLL_OFF;
2517 mt7531_ind_c45_phy_write(priv, MT753X_CTRL_PHY_ADDR, MDIO_MMD_VEND2,
2518 CORE_PLL_GROUP4, val);
2520 mt7531_setup_common(ds);
2522 /* Setup VLAN ID 0 for VLAN-unaware bridges */
2523 ret = mt7530_setup_vlan0(priv);
2527 ds->assisted_learning_on_cpu_port = true;
2528 ds->mtu_enforcement_ingress = true;
2533 static void mt7530_mac_port_get_caps(struct dsa_switch *ds, int port,
2534 struct phylink_config *config)
2537 /* Ports which are connected to switch PHYs. There is no MII pinout. */
2539 __set_bit(PHY_INTERFACE_MODE_GMII,
2540 config->supported_interfaces);
2543 /* Port 5 supports rgmii with delays, mii, and gmii. */
2545 phy_interface_set_rgmii(config->supported_interfaces);
2546 __set_bit(PHY_INTERFACE_MODE_MII,
2547 config->supported_interfaces);
2548 __set_bit(PHY_INTERFACE_MODE_GMII,
2549 config->supported_interfaces);
2552 /* Port 6 supports rgmii and trgmii. */
2554 __set_bit(PHY_INTERFACE_MODE_RGMII,
2555 config->supported_interfaces);
2556 __set_bit(PHY_INTERFACE_MODE_TRGMII,
2557 config->supported_interfaces);
2562 static void mt7531_mac_port_get_caps(struct dsa_switch *ds, int port,
2563 struct phylink_config *config)
2565 struct mt7530_priv *priv = ds->priv;
2568 /* Ports which are connected to switch PHYs. There is no MII pinout. */
2570 __set_bit(PHY_INTERFACE_MODE_GMII,
2571 config->supported_interfaces);
2574 /* Port 5 supports rgmii with delays on MT7531BE, sgmii/802.3z on
2578 if (!priv->p5_sgmii) {
2579 phy_interface_set_rgmii(config->supported_interfaces);
2584 /* Port 6 supports sgmii/802.3z. */
2586 __set_bit(PHY_INTERFACE_MODE_SGMII,
2587 config->supported_interfaces);
2588 __set_bit(PHY_INTERFACE_MODE_1000BASEX,
2589 config->supported_interfaces);
2590 __set_bit(PHY_INTERFACE_MODE_2500BASEX,
2591 config->supported_interfaces);
2593 config->mac_capabilities |= MAC_2500FD;
2598 static void mt7988_mac_port_get_caps(struct dsa_switch *ds, int port,
2599 struct phylink_config *config)
2602 /* Ports which are connected to switch PHYs. There is no MII pinout. */
2604 __set_bit(PHY_INTERFACE_MODE_INTERNAL,
2605 config->supported_interfaces);
2608 /* Port 6 is connected to SoC's XGMII MAC. There is no MII pinout. */
2610 __set_bit(PHY_INTERFACE_MODE_INTERNAL,
2611 config->supported_interfaces);
2612 config->mac_capabilities = MAC_ASYM_PAUSE | MAC_SYM_PAUSE |
2618 mt7530_mac_config(struct dsa_switch *ds, int port, unsigned int mode,
2619 phy_interface_t interface)
2621 struct mt7530_priv *priv = ds->priv;
2624 mt7530_setup_port5(priv->ds, interface);
2626 mt7530_setup_port6(priv->ds, interface);
2629 static void mt7531_rgmii_setup(struct mt7530_priv *priv, u32 port,
2630 phy_interface_t interface,
2631 struct phy_device *phydev)
2635 val = mt7530_read(priv, MT7531_CLKGEN_CTRL);
2637 val &= ~GP_MODE_MASK;
2638 val |= GP_MODE(MT7531_GP_MODE_RGMII);
2639 val &= ~CLK_SKEW_IN_MASK;
2640 val |= CLK_SKEW_IN(MT7531_CLK_SKEW_NO_CHG);
2641 val &= ~CLK_SKEW_OUT_MASK;
2642 val |= CLK_SKEW_OUT(MT7531_CLK_SKEW_NO_CHG);
2643 val |= TXCLK_NO_REVERSE | RXCLK_NO_DELAY;
2645 /* Do not adjust rgmii delay when vendor phy driver presents. */
2646 if (!phydev || phy_driver_is_genphy(phydev)) {
2647 val &= ~(TXCLK_NO_REVERSE | RXCLK_NO_DELAY);
2648 switch (interface) {
2649 case PHY_INTERFACE_MODE_RGMII:
2650 val |= TXCLK_NO_REVERSE;
2651 val |= RXCLK_NO_DELAY;
2653 case PHY_INTERFACE_MODE_RGMII_RXID:
2654 val |= TXCLK_NO_REVERSE;
2656 case PHY_INTERFACE_MODE_RGMII_TXID:
2657 val |= RXCLK_NO_DELAY;
2659 case PHY_INTERFACE_MODE_RGMII_ID:
2666 mt7530_write(priv, MT7531_CLKGEN_CTRL, val);
2670 mt7531_mac_config(struct dsa_switch *ds, int port, unsigned int mode,
2671 phy_interface_t interface)
2673 struct mt7530_priv *priv = ds->priv;
2674 struct phy_device *phydev;
2675 struct dsa_port *dp;
2677 if (phy_interface_mode_is_rgmii(interface)) {
2678 dp = dsa_to_port(ds, port);
2679 phydev = dp->user->phydev;
2680 mt7531_rgmii_setup(priv, port, interface, phydev);
2684 static struct phylink_pcs *
2685 mt753x_phylink_mac_select_pcs(struct dsa_switch *ds, int port,
2686 phy_interface_t interface)
2688 struct mt7530_priv *priv = ds->priv;
2690 switch (interface) {
2691 case PHY_INTERFACE_MODE_TRGMII:
2692 return &priv->pcs[port].pcs;
2693 case PHY_INTERFACE_MODE_SGMII:
2694 case PHY_INTERFACE_MODE_1000BASEX:
2695 case PHY_INTERFACE_MODE_2500BASEX:
2696 return priv->ports[port].sgmii_pcs;
2703 mt753x_phylink_mac_config(struct dsa_switch *ds, int port, unsigned int mode,
2704 const struct phylink_link_state *state)
2706 struct mt7530_priv *priv = ds->priv;
2708 if ((port == 5 || port == 6) && priv->info->mac_port_config)
2709 priv->info->mac_port_config(ds, port, mode, state->interface);
2711 /* Are we connected to external phy */
2712 if (port == 5 && dsa_is_user_port(ds, 5))
2713 mt7530_set(priv, MT7530_PMCR_P(port), PMCR_EXT_PHY);
2716 static void mt753x_phylink_mac_link_down(struct dsa_switch *ds, int port,
2718 phy_interface_t interface)
2720 struct mt7530_priv *priv = ds->priv;
2722 mt7530_clear(priv, MT7530_PMCR_P(port), PMCR_LINK_SETTINGS_MASK);
2725 static void mt753x_phylink_mac_link_up(struct dsa_switch *ds, int port,
2727 phy_interface_t interface,
2728 struct phy_device *phydev,
2729 int speed, int duplex,
2730 bool tx_pause, bool rx_pause)
2732 struct mt7530_priv *priv = ds->priv;
2735 mcr = PMCR_RX_EN | PMCR_TX_EN | PMCR_FORCE_LNK;
2741 mcr |= PMCR_FORCE_SPEED_1000;
2744 mcr |= PMCR_FORCE_SPEED_100;
2747 if (duplex == DUPLEX_FULL) {
2748 mcr |= PMCR_FORCE_FDX;
2750 mcr |= PMCR_TX_FC_EN;
2752 mcr |= PMCR_RX_FC_EN;
2755 if (mode == MLO_AN_PHY && phydev && phy_init_eee(phydev, false) >= 0) {
2759 mcr |= PMCR_FORCE_EEE1G;
2762 mcr |= PMCR_FORCE_EEE100;
2767 mt7530_set(priv, MT7530_PMCR_P(port), mcr);
2770 static void mt753x_phylink_get_caps(struct dsa_switch *ds, int port,
2771 struct phylink_config *config)
2773 struct mt7530_priv *priv = ds->priv;
2775 /* This switch only supports full-duplex at 1Gbps */
2776 config->mac_capabilities = MAC_ASYM_PAUSE | MAC_SYM_PAUSE |
2777 MAC_10 | MAC_100 | MAC_1000FD;
2779 priv->info->mac_port_get_caps(ds, port, config);
2782 static int mt753x_pcs_validate(struct phylink_pcs *pcs,
2783 unsigned long *supported,
2784 const struct phylink_link_state *state)
2786 /* Autonegotiation is not supported in TRGMII nor 802.3z modes */
2787 if (state->interface == PHY_INTERFACE_MODE_TRGMII ||
2788 phy_interface_mode_is_8023z(state->interface))
2789 phylink_clear(supported, Autoneg);
2794 static void mt7530_pcs_get_state(struct phylink_pcs *pcs,
2795 struct phylink_link_state *state)
2797 struct mt7530_priv *priv = pcs_to_mt753x_pcs(pcs)->priv;
2798 int port = pcs_to_mt753x_pcs(pcs)->port;
2801 pmsr = mt7530_read(priv, MT7530_PMSR_P(port));
2803 state->link = (pmsr & PMSR_LINK);
2804 state->an_complete = state->link;
2805 state->duplex = !!(pmsr & PMSR_DPX);
2807 switch (pmsr & PMSR_SPEED_MASK) {
2809 state->speed = SPEED_10;
2811 case PMSR_SPEED_100:
2812 state->speed = SPEED_100;
2814 case PMSR_SPEED_1000:
2815 state->speed = SPEED_1000;
2818 state->speed = SPEED_UNKNOWN;
2822 state->pause &= ~(MLO_PAUSE_RX | MLO_PAUSE_TX);
2823 if (pmsr & PMSR_RX_FC)
2824 state->pause |= MLO_PAUSE_RX;
2825 if (pmsr & PMSR_TX_FC)
2826 state->pause |= MLO_PAUSE_TX;
2829 static int mt753x_pcs_config(struct phylink_pcs *pcs, unsigned int neg_mode,
2830 phy_interface_t interface,
2831 const unsigned long *advertising,
2832 bool permit_pause_to_mac)
2837 static void mt7530_pcs_an_restart(struct phylink_pcs *pcs)
2841 static const struct phylink_pcs_ops mt7530_pcs_ops = {
2842 .pcs_validate = mt753x_pcs_validate,
2843 .pcs_get_state = mt7530_pcs_get_state,
2844 .pcs_config = mt753x_pcs_config,
2845 .pcs_an_restart = mt7530_pcs_an_restart,
2849 mt753x_setup(struct dsa_switch *ds)
2851 struct mt7530_priv *priv = ds->priv;
2852 int ret = priv->info->sw_setup(ds);
2858 ret = mt7530_setup_irq(priv);
2862 ret = mt7530_setup_mdio(priv);
2863 if (ret && priv->irq)
2864 mt7530_free_irq_common(priv);
2866 /* Initialise the PCS devices */
2867 for (i = 0; i < priv->ds->num_ports; i++) {
2868 priv->pcs[i].pcs.ops = priv->info->pcs_ops;
2869 priv->pcs[i].pcs.neg_mode = true;
2870 priv->pcs[i].priv = priv;
2871 priv->pcs[i].port = i;
2874 if (priv->create_sgmii) {
2875 ret = priv->create_sgmii(priv);
2876 if (ret && priv->irq)
2877 mt7530_free_irq(priv);
2883 static int mt753x_get_mac_eee(struct dsa_switch *ds, int port,
2884 struct ethtool_keee *e)
2886 struct mt7530_priv *priv = ds->priv;
2887 u32 eeecr = mt7530_read(priv, MT7530_PMEEECR_P(port));
2889 e->tx_lpi_enabled = !(eeecr & LPI_MODE_EN);
2890 e->tx_lpi_timer = GET_LPI_THRESH(eeecr);
2895 static int mt753x_set_mac_eee(struct dsa_switch *ds, int port,
2896 struct ethtool_keee *e)
2898 struct mt7530_priv *priv = ds->priv;
2899 u32 set, mask = LPI_THRESH_MASK | LPI_MODE_EN;
2901 if (e->tx_lpi_timer > 0xFFF)
2904 set = SET_LPI_THRESH(e->tx_lpi_timer);
2905 if (!e->tx_lpi_enabled)
2906 /* Force LPI Mode without a delay */
2908 mt7530_rmw(priv, MT7530_PMEEECR_P(port), mask, set);
2914 mt753x_conduit_state_change(struct dsa_switch *ds,
2915 const struct net_device *conduit,
2918 struct dsa_port *cpu_dp = conduit->dsa_ptr;
2919 struct mt7530_priv *priv = ds->priv;
2923 /* Set the CPU port to trap frames to for MT7530. Trapped frames will be
2924 * forwarded to the numerically smallest CPU port whose conduit
2927 if (priv->id != ID_MT7530 && priv->id != ID_MT7621)
2930 mask = BIT(cpu_dp->index);
2933 priv->active_cpu_ports |= mask;
2935 priv->active_cpu_ports &= ~mask;
2937 if (priv->active_cpu_ports)
2938 val = CPU_EN | CPU_PORT(__ffs(priv->active_cpu_ports));
2940 mt7530_rmw(priv, MT7530_MFC, CPU_EN | CPU_PORT_MASK, val);
2943 static int mt7988_setup(struct dsa_switch *ds)
2945 struct mt7530_priv *priv = ds->priv;
2947 /* Reset the switch */
2948 reset_control_assert(priv->rstc);
2949 usleep_range(20, 50);
2950 reset_control_deassert(priv->rstc);
2951 usleep_range(20, 50);
2953 /* Reset the switch PHYs */
2954 mt7530_write(priv, MT7530_SYS_CTRL, SYS_CTRL_PHY_RST);
2956 return mt7531_setup_common(ds);
2959 const struct dsa_switch_ops mt7530_switch_ops = {
2960 .get_tag_protocol = mtk_get_tag_protocol,
2961 .setup = mt753x_setup,
2962 .preferred_default_local_cpu_port = mt753x_preferred_default_local_cpu_port,
2963 .get_strings = mt7530_get_strings,
2964 .get_ethtool_stats = mt7530_get_ethtool_stats,
2965 .get_sset_count = mt7530_get_sset_count,
2966 .set_ageing_time = mt7530_set_ageing_time,
2967 .port_enable = mt7530_port_enable,
2968 .port_disable = mt7530_port_disable,
2969 .port_change_mtu = mt7530_port_change_mtu,
2970 .port_max_mtu = mt7530_port_max_mtu,
2971 .port_stp_state_set = mt7530_stp_state_set,
2972 .port_pre_bridge_flags = mt7530_port_pre_bridge_flags,
2973 .port_bridge_flags = mt7530_port_bridge_flags,
2974 .port_bridge_join = mt7530_port_bridge_join,
2975 .port_bridge_leave = mt7530_port_bridge_leave,
2976 .port_fdb_add = mt7530_port_fdb_add,
2977 .port_fdb_del = mt7530_port_fdb_del,
2978 .port_fdb_dump = mt7530_port_fdb_dump,
2979 .port_mdb_add = mt7530_port_mdb_add,
2980 .port_mdb_del = mt7530_port_mdb_del,
2981 .port_vlan_filtering = mt7530_port_vlan_filtering,
2982 .port_vlan_add = mt7530_port_vlan_add,
2983 .port_vlan_del = mt7530_port_vlan_del,
2984 .port_mirror_add = mt753x_port_mirror_add,
2985 .port_mirror_del = mt753x_port_mirror_del,
2986 .phylink_get_caps = mt753x_phylink_get_caps,
2987 .phylink_mac_select_pcs = mt753x_phylink_mac_select_pcs,
2988 .phylink_mac_config = mt753x_phylink_mac_config,
2989 .phylink_mac_link_down = mt753x_phylink_mac_link_down,
2990 .phylink_mac_link_up = mt753x_phylink_mac_link_up,
2991 .get_mac_eee = mt753x_get_mac_eee,
2992 .set_mac_eee = mt753x_set_mac_eee,
2993 .conduit_state_change = mt753x_conduit_state_change,
2995 EXPORT_SYMBOL_GPL(mt7530_switch_ops);
2997 const struct mt753x_info mt753x_table[] = {
3000 .pcs_ops = &mt7530_pcs_ops,
3001 .sw_setup = mt7530_setup,
3002 .phy_read_c22 = mt7530_phy_read_c22,
3003 .phy_write_c22 = mt7530_phy_write_c22,
3004 .phy_read_c45 = mt7530_phy_read_c45,
3005 .phy_write_c45 = mt7530_phy_write_c45,
3006 .mac_port_get_caps = mt7530_mac_port_get_caps,
3007 .mac_port_config = mt7530_mac_config,
3011 .pcs_ops = &mt7530_pcs_ops,
3012 .sw_setup = mt7530_setup,
3013 .phy_read_c22 = mt7530_phy_read_c22,
3014 .phy_write_c22 = mt7530_phy_write_c22,
3015 .phy_read_c45 = mt7530_phy_read_c45,
3016 .phy_write_c45 = mt7530_phy_write_c45,
3017 .mac_port_get_caps = mt7530_mac_port_get_caps,
3018 .mac_port_config = mt7530_mac_config,
3022 .pcs_ops = &mt7530_pcs_ops,
3023 .sw_setup = mt7531_setup,
3024 .phy_read_c22 = mt7531_ind_c22_phy_read,
3025 .phy_write_c22 = mt7531_ind_c22_phy_write,
3026 .phy_read_c45 = mt7531_ind_c45_phy_read,
3027 .phy_write_c45 = mt7531_ind_c45_phy_write,
3028 .mac_port_get_caps = mt7531_mac_port_get_caps,
3029 .mac_port_config = mt7531_mac_config,
3033 .pcs_ops = &mt7530_pcs_ops,
3034 .sw_setup = mt7988_setup,
3035 .phy_read_c22 = mt7531_ind_c22_phy_read,
3036 .phy_write_c22 = mt7531_ind_c22_phy_write,
3037 .phy_read_c45 = mt7531_ind_c45_phy_read,
3038 .phy_write_c45 = mt7531_ind_c45_phy_write,
3039 .mac_port_get_caps = mt7988_mac_port_get_caps,
3042 EXPORT_SYMBOL_GPL(mt753x_table);
3045 mt7530_probe_common(struct mt7530_priv *priv)
3047 struct device *dev = priv->dev;
3049 priv->ds = devm_kzalloc(dev, sizeof(*priv->ds), GFP_KERNEL);
3053 priv->ds->dev = dev;
3054 priv->ds->num_ports = MT7530_NUM_PORTS;
3056 /* Get the hardware identifier from the devicetree node.
3057 * We will need it for some of the clock and regulator setup.
3059 priv->info = of_device_get_match_data(dev);
3063 /* Sanity check if these required device operations are filled
3066 if (!priv->info->sw_setup || !priv->info->phy_read_c22 ||
3067 !priv->info->phy_write_c22 || !priv->info->mac_port_get_caps)
3070 priv->id = priv->info->id;
3072 priv->ds->priv = priv;
3073 priv->ds->ops = &mt7530_switch_ops;
3074 mutex_init(&priv->reg_mutex);
3075 dev_set_drvdata(dev, priv);
3079 EXPORT_SYMBOL_GPL(mt7530_probe_common);
3082 mt7530_remove_common(struct mt7530_priv *priv)
3085 mt7530_free_irq(priv);
3087 dsa_unregister_switch(priv->ds);
3089 mutex_destroy(&priv->reg_mutex);
3091 EXPORT_SYMBOL_GPL(mt7530_remove_common);
3093 MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>");
3094 MODULE_DESCRIPTION("Driver for Mediatek MT7530 Switch");
3095 MODULE_LICENSE("GPL");