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_mdio.h>
14 #include <linux/of_net.h>
15 #include <linux/of_platform.h>
16 #include <linux/phylink.h>
17 #include <linux/regmap.h>
18 #include <linux/regulator/consumer.h>
19 #include <linux/reset.h>
20 #include <linux/gpio/consumer.h>
21 #include <linux/gpio/driver.h>
26 /* String, offset, and register size in bytes if different from 4 bytes */
27 static const struct mt7530_mib_desc mt7530_mib[] = {
28 MIB_DESC(1, 0x00, "TxDrop"),
29 MIB_DESC(1, 0x04, "TxCrcErr"),
30 MIB_DESC(1, 0x08, "TxUnicast"),
31 MIB_DESC(1, 0x0c, "TxMulticast"),
32 MIB_DESC(1, 0x10, "TxBroadcast"),
33 MIB_DESC(1, 0x14, "TxCollision"),
34 MIB_DESC(1, 0x18, "TxSingleCollision"),
35 MIB_DESC(1, 0x1c, "TxMultipleCollision"),
36 MIB_DESC(1, 0x20, "TxDeferred"),
37 MIB_DESC(1, 0x24, "TxLateCollision"),
38 MIB_DESC(1, 0x28, "TxExcessiveCollistion"),
39 MIB_DESC(1, 0x2c, "TxPause"),
40 MIB_DESC(1, 0x30, "TxPktSz64"),
41 MIB_DESC(1, 0x34, "TxPktSz65To127"),
42 MIB_DESC(1, 0x38, "TxPktSz128To255"),
43 MIB_DESC(1, 0x3c, "TxPktSz256To511"),
44 MIB_DESC(1, 0x40, "TxPktSz512To1023"),
45 MIB_DESC(1, 0x44, "Tx1024ToMax"),
46 MIB_DESC(2, 0x48, "TxBytes"),
47 MIB_DESC(1, 0x60, "RxDrop"),
48 MIB_DESC(1, 0x64, "RxFiltering"),
49 MIB_DESC(1, 0x6c, "RxMulticast"),
50 MIB_DESC(1, 0x70, "RxBroadcast"),
51 MIB_DESC(1, 0x74, "RxAlignErr"),
52 MIB_DESC(1, 0x78, "RxCrcErr"),
53 MIB_DESC(1, 0x7c, "RxUnderSizeErr"),
54 MIB_DESC(1, 0x80, "RxFragErr"),
55 MIB_DESC(1, 0x84, "RxOverSzErr"),
56 MIB_DESC(1, 0x88, "RxJabberErr"),
57 MIB_DESC(1, 0x8c, "RxPause"),
58 MIB_DESC(1, 0x90, "RxPktSz64"),
59 MIB_DESC(1, 0x94, "RxPktSz65To127"),
60 MIB_DESC(1, 0x98, "RxPktSz128To255"),
61 MIB_DESC(1, 0x9c, "RxPktSz256To511"),
62 MIB_DESC(1, 0xa0, "RxPktSz512To1023"),
63 MIB_DESC(1, 0xa4, "RxPktSz1024ToMax"),
64 MIB_DESC(2, 0xa8, "RxBytes"),
65 MIB_DESC(1, 0xb0, "RxCtrlDrop"),
66 MIB_DESC(1, 0xb4, "RxIngressDrop"),
67 MIB_DESC(1, 0xb8, "RxArlDrop"),
70 /* Since phy_device has not yet been created and
71 * phy_{read,write}_mmd_indirect is not available, we provide our own
72 * core_{read,write}_mmd_indirect with core_{clear,write,set} wrappers
73 * to complete this function.
76 core_read_mmd_indirect(struct mt7530_priv *priv, int prtad, int devad)
78 struct mii_bus *bus = priv->bus;
81 /* Write the desired MMD Devad */
82 ret = bus->write(bus, 0, MII_MMD_CTRL, devad);
86 /* Write the desired MMD register address */
87 ret = bus->write(bus, 0, MII_MMD_DATA, prtad);
91 /* Select the Function : DATA with no post increment */
92 ret = bus->write(bus, 0, MII_MMD_CTRL, (devad | MII_MMD_CTRL_NOINCR));
96 /* Read the content of the MMD's selected register */
97 value = bus->read(bus, 0, MII_MMD_DATA);
101 dev_err(&bus->dev, "failed to read mmd register\n");
107 core_write_mmd_indirect(struct mt7530_priv *priv, int prtad,
110 struct mii_bus *bus = priv->bus;
113 /* Write the desired MMD Devad */
114 ret = bus->write(bus, 0, MII_MMD_CTRL, devad);
118 /* Write the desired MMD register address */
119 ret = bus->write(bus, 0, MII_MMD_DATA, prtad);
123 /* Select the Function : DATA with no post increment */
124 ret = bus->write(bus, 0, MII_MMD_CTRL, (devad | MII_MMD_CTRL_NOINCR));
128 /* Write the data into MMD's selected register */
129 ret = bus->write(bus, 0, MII_MMD_DATA, data);
133 "failed to write mmd register\n");
138 core_write(struct mt7530_priv *priv, u32 reg, u32 val)
140 struct mii_bus *bus = priv->bus;
142 mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED);
144 core_write_mmd_indirect(priv, reg, MDIO_MMD_VEND2, val);
146 mutex_unlock(&bus->mdio_lock);
150 core_rmw(struct mt7530_priv *priv, u32 reg, u32 mask, u32 set)
152 struct mii_bus *bus = priv->bus;
155 mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED);
157 val = core_read_mmd_indirect(priv, reg, MDIO_MMD_VEND2);
160 core_write_mmd_indirect(priv, reg, MDIO_MMD_VEND2, val);
162 mutex_unlock(&bus->mdio_lock);
166 core_set(struct mt7530_priv *priv, u32 reg, u32 val)
168 core_rmw(priv, reg, 0, val);
172 core_clear(struct mt7530_priv *priv, u32 reg, u32 val)
174 core_rmw(priv, reg, val, 0);
178 mt7530_mii_write(struct mt7530_priv *priv, u32 reg, u32 val)
180 struct mii_bus *bus = priv->bus;
184 page = (reg >> 6) & 0x3ff;
185 r = (reg >> 2) & 0xf;
189 /* MT7530 uses 31 as the pseudo port */
190 ret = bus->write(bus, 0x1f, 0x1f, page);
194 ret = bus->write(bus, 0x1f, r, lo);
198 ret = bus->write(bus, 0x1f, 0x10, hi);
202 "failed to write mt7530 register\n");
207 mt7530_mii_read(struct mt7530_priv *priv, u32 reg)
209 struct mii_bus *bus = priv->bus;
213 page = (reg >> 6) & 0x3ff;
214 r = (reg >> 2) & 0xf;
216 /* MT7530 uses 31 as the pseudo port */
217 ret = bus->write(bus, 0x1f, 0x1f, page);
220 "failed to read mt7530 register\n");
224 lo = bus->read(bus, 0x1f, r);
225 hi = bus->read(bus, 0x1f, 0x10);
227 return (hi << 16) | (lo & 0xffff);
231 mt7530_write(struct mt7530_priv *priv, u32 reg, u32 val)
233 struct mii_bus *bus = priv->bus;
235 mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED);
237 mt7530_mii_write(priv, reg, val);
239 mutex_unlock(&bus->mdio_lock);
243 _mt7530_unlocked_read(struct mt7530_dummy_poll *p)
245 return mt7530_mii_read(p->priv, p->reg);
249 _mt7530_read(struct mt7530_dummy_poll *p)
251 struct mii_bus *bus = p->priv->bus;
254 mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED);
256 val = mt7530_mii_read(p->priv, p->reg);
258 mutex_unlock(&bus->mdio_lock);
264 mt7530_read(struct mt7530_priv *priv, u32 reg)
266 struct mt7530_dummy_poll p;
268 INIT_MT7530_DUMMY_POLL(&p, priv, reg);
269 return _mt7530_read(&p);
273 mt7530_rmw(struct mt7530_priv *priv, u32 reg,
276 struct mii_bus *bus = priv->bus;
279 mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED);
281 val = mt7530_mii_read(priv, reg);
284 mt7530_mii_write(priv, reg, val);
286 mutex_unlock(&bus->mdio_lock);
290 mt7530_set(struct mt7530_priv *priv, u32 reg, u32 val)
292 mt7530_rmw(priv, reg, 0, val);
296 mt7530_clear(struct mt7530_priv *priv, u32 reg, u32 val)
298 mt7530_rmw(priv, reg, val, 0);
302 mt7530_fdb_cmd(struct mt7530_priv *priv, enum mt7530_fdb_cmd cmd, u32 *rsp)
306 struct mt7530_dummy_poll p;
308 /* Set the command operating upon the MAC address entries */
309 val = ATC_BUSY | ATC_MAT(0) | cmd;
310 mt7530_write(priv, MT7530_ATC, val);
312 INIT_MT7530_DUMMY_POLL(&p, priv, MT7530_ATC);
313 ret = readx_poll_timeout(_mt7530_read, &p, val,
314 !(val & ATC_BUSY), 20, 20000);
316 dev_err(priv->dev, "reset timeout\n");
320 /* Additional sanity for read command if the specified
323 val = mt7530_read(priv, MT7530_ATC);
324 if ((cmd == MT7530_FDB_READ) && (val & ATC_INVALID))
334 mt7530_fdb_read(struct mt7530_priv *priv, struct mt7530_fdb *fdb)
339 /* Read from ARL table into an array */
340 for (i = 0; i < 3; i++) {
341 reg[i] = mt7530_read(priv, MT7530_TSRA1 + (i * 4));
343 dev_dbg(priv->dev, "%s(%d) reg[%d]=0x%x\n",
344 __func__, __LINE__, i, reg[i]);
347 fdb->vid = (reg[1] >> CVID) & CVID_MASK;
348 fdb->aging = (reg[2] >> AGE_TIMER) & AGE_TIMER_MASK;
349 fdb->port_mask = (reg[2] >> PORT_MAP) & PORT_MAP_MASK;
350 fdb->mac[0] = (reg[0] >> MAC_BYTE_0) & MAC_BYTE_MASK;
351 fdb->mac[1] = (reg[0] >> MAC_BYTE_1) & MAC_BYTE_MASK;
352 fdb->mac[2] = (reg[0] >> MAC_BYTE_2) & MAC_BYTE_MASK;
353 fdb->mac[3] = (reg[0] >> MAC_BYTE_3) & MAC_BYTE_MASK;
354 fdb->mac[4] = (reg[1] >> MAC_BYTE_4) & MAC_BYTE_MASK;
355 fdb->mac[5] = (reg[1] >> MAC_BYTE_5) & MAC_BYTE_MASK;
356 fdb->noarp = ((reg[2] >> ENT_STATUS) & ENT_STATUS_MASK) == STATIC_ENT;
360 mt7530_fdb_write(struct mt7530_priv *priv, u16 vid,
361 u8 port_mask, const u8 *mac,
367 reg[1] |= vid & CVID_MASK;
368 reg[2] |= (aging & AGE_TIMER_MASK) << AGE_TIMER;
369 reg[2] |= (port_mask & PORT_MAP_MASK) << PORT_MAP;
370 /* STATIC_ENT indicate that entry is static wouldn't
371 * be aged out and STATIC_EMP specified as erasing an
374 reg[2] |= (type & ENT_STATUS_MASK) << ENT_STATUS;
375 reg[1] |= mac[5] << MAC_BYTE_5;
376 reg[1] |= mac[4] << MAC_BYTE_4;
377 reg[0] |= mac[3] << MAC_BYTE_3;
378 reg[0] |= mac[2] << MAC_BYTE_2;
379 reg[0] |= mac[1] << MAC_BYTE_1;
380 reg[0] |= mac[0] << MAC_BYTE_0;
382 /* Write array into the ARL table */
383 for (i = 0; i < 3; i++)
384 mt7530_write(priv, MT7530_ATA1 + (i * 4), reg[i]);
387 /* Setup TX circuit including relevant PAD and driving */
389 mt7530_pad_clk_setup(struct dsa_switch *ds, phy_interface_t interface)
391 struct mt7530_priv *priv = ds->priv;
392 u32 ncpo1, ssc_delta, trgint, i, xtal;
394 xtal = mt7530_read(priv, MT7530_MHWTRAP) & HWTRAP_XTAL_MASK;
396 if (xtal == HWTRAP_XTAL_20MHZ) {
398 "%s: MT7530 with a 20MHz XTAL is not supported!\n",
404 case PHY_INTERFACE_MODE_RGMII:
406 /* PLL frequency: 125MHz */
409 case PHY_INTERFACE_MODE_TRGMII:
411 if (priv->id == ID_MT7621) {
412 /* PLL frequency: 150MHz: 1.2GBit */
413 if (xtal == HWTRAP_XTAL_40MHZ)
415 if (xtal == HWTRAP_XTAL_25MHZ)
417 } else { /* PLL frequency: 250MHz: 2.0Gbit */
418 if (xtal == HWTRAP_XTAL_40MHZ)
420 if (xtal == HWTRAP_XTAL_25MHZ)
425 dev_err(priv->dev, "xMII interface %d not supported\n",
430 if (xtal == HWTRAP_XTAL_25MHZ)
435 mt7530_rmw(priv, MT7530_P6ECR, P6_INTF_MODE_MASK,
436 P6_INTF_MODE(trgint));
438 /* Lower Tx Driving for TRGMII path */
439 for (i = 0 ; i < NUM_TRGMII_CTRL ; i++)
440 mt7530_write(priv, MT7530_TRGMII_TD_ODT(i),
441 TD_DM_DRVP(8) | TD_DM_DRVN(8));
443 /* Disable MT7530 core and TRGMII Tx clocks */
444 core_clear(priv, CORE_TRGMII_GSW_CLK_CG,
445 REG_GSWCK_EN | REG_TRGMIICK_EN);
447 /* Setup core clock for MT7530 */
449 core_write(priv, CORE_GSWPLL_GRP1, 0);
451 /* Set core clock into 500Mhz */
452 core_write(priv, CORE_GSWPLL_GRP2,
453 RG_GSWPLL_POSDIV_500M(1) |
454 RG_GSWPLL_FBKDIV_500M(25));
457 core_write(priv, CORE_GSWPLL_GRP1,
459 RG_GSWPLL_POSDIV_200M(2) |
460 RG_GSWPLL_FBKDIV_200M(32));
462 /* Setup the MT7530 TRGMII Tx Clock */
463 core_write(priv, CORE_PLL_GROUP5, RG_LCDDS_PCW_NCPO1(ncpo1));
464 core_write(priv, CORE_PLL_GROUP6, RG_LCDDS_PCW_NCPO0(0));
465 core_write(priv, CORE_PLL_GROUP10, RG_LCDDS_SSC_DELTA(ssc_delta));
466 core_write(priv, CORE_PLL_GROUP11, RG_LCDDS_SSC_DELTA1(ssc_delta));
467 core_write(priv, CORE_PLL_GROUP4,
468 RG_SYSPLL_DDSFBK_EN | RG_SYSPLL_BIAS_EN |
469 RG_SYSPLL_BIAS_LPF_EN);
470 core_write(priv, CORE_PLL_GROUP2,
471 RG_SYSPLL_EN_NORMAL | RG_SYSPLL_VODEN |
472 RG_SYSPLL_POSDIV(1));
473 core_write(priv, CORE_PLL_GROUP7,
474 RG_LCDDS_PCW_NCPO_CHG | RG_LCCDS_C(3) |
475 RG_LCDDS_PWDB | RG_LCDDS_ISO_EN);
477 /* Enable MT7530 core and TRGMII Tx clocks */
478 core_set(priv, CORE_TRGMII_GSW_CLK_CG,
479 REG_GSWCK_EN | REG_TRGMIICK_EN);
482 for (i = 0 ; i < NUM_TRGMII_CTRL; i++)
483 mt7530_rmw(priv, MT7530_TRGMII_RD(i),
484 RD_TAP_MASK, RD_TAP(16));
488 static bool mt7531_dual_sgmii_supported(struct mt7530_priv *priv)
492 val = mt7530_read(priv, MT7531_TOP_SIG_SR);
494 return (val & PAD_DUAL_SGMII_EN) != 0;
498 mt7531_pad_setup(struct dsa_switch *ds, phy_interface_t interface)
500 struct mt7530_priv *priv = ds->priv;
506 if (mt7531_dual_sgmii_supported(priv))
509 val = mt7530_read(priv, MT7531_CREV);
510 top_sig = mt7530_read(priv, MT7531_TOP_SIG_SR);
511 hwstrap = mt7530_read(priv, MT7531_HWTRAP);
512 if ((val & CHIP_REV_M) > 0)
513 xtal = (top_sig & PAD_MCM_SMI_EN) ? HWTRAP_XTAL_FSEL_40MHZ :
514 HWTRAP_XTAL_FSEL_25MHZ;
516 xtal = hwstrap & HWTRAP_XTAL_FSEL_MASK;
518 /* Step 1 : Disable MT7531 COREPLL */
519 val = mt7530_read(priv, MT7531_PLLGP_EN);
521 mt7530_write(priv, MT7531_PLLGP_EN, val);
523 /* Step 2: switch to XTAL output */
524 val = mt7530_read(priv, MT7531_PLLGP_EN);
526 mt7530_write(priv, MT7531_PLLGP_EN, val);
528 val = mt7530_read(priv, MT7531_PLLGP_CR0);
529 val &= ~RG_COREPLL_EN;
530 mt7530_write(priv, MT7531_PLLGP_CR0, val);
532 /* Step 3: disable PLLGP and enable program PLLGP */
533 val = mt7530_read(priv, MT7531_PLLGP_EN);
535 mt7530_write(priv, MT7531_PLLGP_EN, val);
537 /* Step 4: program COREPLL output frequency to 500MHz */
538 val = mt7530_read(priv, MT7531_PLLGP_CR0);
539 val &= ~RG_COREPLL_POSDIV_M;
540 val |= 2 << RG_COREPLL_POSDIV_S;
541 mt7530_write(priv, MT7531_PLLGP_CR0, val);
542 usleep_range(25, 35);
545 case HWTRAP_XTAL_FSEL_25MHZ:
546 val = mt7530_read(priv, MT7531_PLLGP_CR0);
547 val &= ~RG_COREPLL_SDM_PCW_M;
548 val |= 0x140000 << RG_COREPLL_SDM_PCW_S;
549 mt7530_write(priv, MT7531_PLLGP_CR0, val);
551 case HWTRAP_XTAL_FSEL_40MHZ:
552 val = mt7530_read(priv, MT7531_PLLGP_CR0);
553 val &= ~RG_COREPLL_SDM_PCW_M;
554 val |= 0x190000 << RG_COREPLL_SDM_PCW_S;
555 mt7530_write(priv, MT7531_PLLGP_CR0, val);
559 /* Set feedback divide ratio update signal to high */
560 val = mt7530_read(priv, MT7531_PLLGP_CR0);
561 val |= RG_COREPLL_SDM_PCW_CHG;
562 mt7530_write(priv, MT7531_PLLGP_CR0, val);
563 /* Wait for at least 16 XTAL clocks */
564 usleep_range(10, 20);
566 /* Step 5: set feedback divide ratio update signal to low */
567 val = mt7530_read(priv, MT7531_PLLGP_CR0);
568 val &= ~RG_COREPLL_SDM_PCW_CHG;
569 mt7530_write(priv, MT7531_PLLGP_CR0, val);
571 /* Enable 325M clock for SGMII */
572 mt7530_write(priv, MT7531_ANA_PLLGP_CR5, 0xad0000);
574 /* Enable 250SSC clock for RGMII */
575 mt7530_write(priv, MT7531_ANA_PLLGP_CR2, 0x4f40000);
577 /* Step 6: Enable MT7531 PLL */
578 val = mt7530_read(priv, MT7531_PLLGP_CR0);
579 val |= RG_COREPLL_EN;
580 mt7530_write(priv, MT7531_PLLGP_CR0, val);
582 val = mt7530_read(priv, MT7531_PLLGP_EN);
584 mt7530_write(priv, MT7531_PLLGP_EN, val);
585 usleep_range(25, 35);
591 mt7530_mib_reset(struct dsa_switch *ds)
593 struct mt7530_priv *priv = ds->priv;
595 mt7530_write(priv, MT7530_MIB_CCR, CCR_MIB_FLUSH);
596 mt7530_write(priv, MT7530_MIB_CCR, CCR_MIB_ACTIVATE);
599 static int mt7530_phy_read(struct dsa_switch *ds, int port, int regnum)
601 struct mt7530_priv *priv = ds->priv;
603 return mdiobus_read_nested(priv->bus, port, regnum);
606 static int mt7530_phy_write(struct dsa_switch *ds, int port, int regnum,
609 struct mt7530_priv *priv = ds->priv;
611 return mdiobus_write_nested(priv->bus, port, regnum, val);
615 mt7531_ind_c45_phy_read(struct mt7530_priv *priv, int port, int devad,
618 struct mii_bus *bus = priv->bus;
619 struct mt7530_dummy_poll p;
623 INIT_MT7530_DUMMY_POLL(&p, priv, MT7531_PHY_IAC);
625 mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED);
627 ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val,
628 !(val & MT7531_PHY_ACS_ST), 20, 100000);
630 dev_err(priv->dev, "poll timeout\n");
634 reg = MT7531_MDIO_CL45_ADDR | MT7531_MDIO_PHY_ADDR(port) |
635 MT7531_MDIO_DEV_ADDR(devad) | regnum;
636 mt7530_mii_write(priv, MT7531_PHY_IAC, reg | MT7531_PHY_ACS_ST);
638 ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val,
639 !(val & MT7531_PHY_ACS_ST), 20, 100000);
641 dev_err(priv->dev, "poll timeout\n");
645 reg = MT7531_MDIO_CL45_READ | MT7531_MDIO_PHY_ADDR(port) |
646 MT7531_MDIO_DEV_ADDR(devad);
647 mt7530_mii_write(priv, MT7531_PHY_IAC, reg | MT7531_PHY_ACS_ST);
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 ret = val & MT7531_MDIO_RW_DATA_MASK;
658 mutex_unlock(&bus->mdio_lock);
664 mt7531_ind_c45_phy_write(struct mt7530_priv *priv, int port, int devad,
665 int regnum, u32 data)
667 struct mii_bus *bus = priv->bus;
668 struct mt7530_dummy_poll p;
672 INIT_MT7530_DUMMY_POLL(&p, priv, MT7531_PHY_IAC);
674 mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED);
676 ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val,
677 !(val & MT7531_PHY_ACS_ST), 20, 100000);
679 dev_err(priv->dev, "poll timeout\n");
683 reg = MT7531_MDIO_CL45_ADDR | MT7531_MDIO_PHY_ADDR(port) |
684 MT7531_MDIO_DEV_ADDR(devad) | regnum;
685 mt7530_mii_write(priv, MT7531_PHY_IAC, reg | MT7531_PHY_ACS_ST);
687 ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val,
688 !(val & MT7531_PHY_ACS_ST), 20, 100000);
690 dev_err(priv->dev, "poll timeout\n");
694 reg = MT7531_MDIO_CL45_WRITE | MT7531_MDIO_PHY_ADDR(port) |
695 MT7531_MDIO_DEV_ADDR(devad) | data;
696 mt7530_mii_write(priv, MT7531_PHY_IAC, reg | MT7531_PHY_ACS_ST);
698 ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val,
699 !(val & MT7531_PHY_ACS_ST), 20, 100000);
701 dev_err(priv->dev, "poll timeout\n");
706 mutex_unlock(&bus->mdio_lock);
712 mt7531_ind_c22_phy_read(struct mt7530_priv *priv, int port, int regnum)
714 struct mii_bus *bus = priv->bus;
715 struct mt7530_dummy_poll p;
719 INIT_MT7530_DUMMY_POLL(&p, priv, MT7531_PHY_IAC);
721 mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED);
723 ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val,
724 !(val & MT7531_PHY_ACS_ST), 20, 100000);
726 dev_err(priv->dev, "poll timeout\n");
730 val = MT7531_MDIO_CL22_READ | MT7531_MDIO_PHY_ADDR(port) |
731 MT7531_MDIO_REG_ADDR(regnum);
733 mt7530_mii_write(priv, MT7531_PHY_IAC, val | MT7531_PHY_ACS_ST);
735 ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val,
736 !(val & MT7531_PHY_ACS_ST), 20, 100000);
738 dev_err(priv->dev, "poll timeout\n");
742 ret = val & MT7531_MDIO_RW_DATA_MASK;
744 mutex_unlock(&bus->mdio_lock);
750 mt7531_ind_c22_phy_write(struct mt7530_priv *priv, int port, int regnum,
753 struct mii_bus *bus = priv->bus;
754 struct mt7530_dummy_poll p;
758 INIT_MT7530_DUMMY_POLL(&p, priv, MT7531_PHY_IAC);
760 mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED);
762 ret = readx_poll_timeout(_mt7530_unlocked_read, &p, reg,
763 !(reg & MT7531_PHY_ACS_ST), 20, 100000);
765 dev_err(priv->dev, "poll timeout\n");
769 reg = MT7531_MDIO_CL22_WRITE | MT7531_MDIO_PHY_ADDR(port) |
770 MT7531_MDIO_REG_ADDR(regnum) | data;
772 mt7530_mii_write(priv, MT7531_PHY_IAC, reg | MT7531_PHY_ACS_ST);
774 ret = readx_poll_timeout(_mt7530_unlocked_read, &p, reg,
775 !(reg & MT7531_PHY_ACS_ST), 20, 100000);
777 dev_err(priv->dev, "poll timeout\n");
782 mutex_unlock(&bus->mdio_lock);
788 mt7531_ind_phy_read(struct dsa_switch *ds, int port, int regnum)
790 struct mt7530_priv *priv = ds->priv;
794 if (regnum & MII_ADDR_C45) {
795 devad = (regnum >> MII_DEVADDR_C45_SHIFT) & 0x1f;
796 ret = mt7531_ind_c45_phy_read(priv, port, devad,
797 regnum & MII_REGADDR_C45_MASK);
799 ret = mt7531_ind_c22_phy_read(priv, port, regnum);
806 mt7531_ind_phy_write(struct dsa_switch *ds, int port, int regnum,
809 struct mt7530_priv *priv = ds->priv;
813 if (regnum & MII_ADDR_C45) {
814 devad = (regnum >> MII_DEVADDR_C45_SHIFT) & 0x1f;
815 ret = mt7531_ind_c45_phy_write(priv, port, devad,
816 regnum & MII_REGADDR_C45_MASK,
819 ret = mt7531_ind_c22_phy_write(priv, port, regnum, data);
826 mt7530_get_strings(struct dsa_switch *ds, int port, u32 stringset,
831 if (stringset != ETH_SS_STATS)
834 for (i = 0; i < ARRAY_SIZE(mt7530_mib); i++)
835 strncpy(data + i * ETH_GSTRING_LEN, mt7530_mib[i].name,
840 mt7530_get_ethtool_stats(struct dsa_switch *ds, int port,
843 struct mt7530_priv *priv = ds->priv;
844 const struct mt7530_mib_desc *mib;
848 for (i = 0; i < ARRAY_SIZE(mt7530_mib); i++) {
849 mib = &mt7530_mib[i];
850 reg = MT7530_PORT_MIB_COUNTER(port) + mib->offset;
852 data[i] = mt7530_read(priv, reg);
853 if (mib->size == 2) {
854 hi = mt7530_read(priv, reg + 4);
861 mt7530_get_sset_count(struct dsa_switch *ds, int port, int sset)
863 if (sset != ETH_SS_STATS)
866 return ARRAY_SIZE(mt7530_mib);
870 mt7530_set_ageing_time(struct dsa_switch *ds, unsigned int msecs)
872 struct mt7530_priv *priv = ds->priv;
873 unsigned int secs = msecs / 1000;
874 unsigned int tmp_age_count;
875 unsigned int error = -1;
876 unsigned int age_count;
877 unsigned int age_unit;
879 /* Applied timer is (AGE_CNT + 1) * (AGE_UNIT + 1) seconds */
880 if (secs < 1 || secs > (AGE_CNT_MAX + 1) * (AGE_UNIT_MAX + 1))
883 /* iterate through all possible age_count to find the closest pair */
884 for (tmp_age_count = 0; tmp_age_count <= AGE_CNT_MAX; ++tmp_age_count) {
885 unsigned int tmp_age_unit = secs / (tmp_age_count + 1) - 1;
887 if (tmp_age_unit <= AGE_UNIT_MAX) {
888 unsigned int tmp_error = secs -
889 (tmp_age_count + 1) * (tmp_age_unit + 1);
891 /* found a closer pair */
892 if (error > tmp_error) {
894 age_count = tmp_age_count;
895 age_unit = tmp_age_unit;
898 /* found the exact match, so break the loop */
904 mt7530_write(priv, MT7530_AAC, AGE_CNT(age_count) | AGE_UNIT(age_unit));
909 static void mt7530_setup_port5(struct dsa_switch *ds, phy_interface_t interface)
911 struct mt7530_priv *priv = ds->priv;
915 mutex_lock(&priv->reg_mutex);
917 val = mt7530_read(priv, MT7530_MHWTRAP);
919 val |= MHWTRAP_MANUAL | MHWTRAP_P5_MAC_SEL | MHWTRAP_P5_DIS;
920 val &= ~MHWTRAP_P5_RGMII_MODE & ~MHWTRAP_PHY0_SEL;
922 switch (priv->p5_intf_sel) {
923 case P5_INTF_SEL_PHY_P0:
924 /* MT7530_P5_MODE_GPHY_P0: 2nd GMAC -> P5 -> P0 */
925 val |= MHWTRAP_PHY0_SEL;
927 case P5_INTF_SEL_PHY_P4:
928 /* MT7530_P5_MODE_GPHY_P4: 2nd GMAC -> P5 -> P4 */
929 val &= ~MHWTRAP_P5_MAC_SEL & ~MHWTRAP_P5_DIS;
931 /* Setup the MAC by default for the cpu port */
932 mt7530_write(priv, MT7530_PMCR_P(5), 0x56300);
934 case P5_INTF_SEL_GMAC5:
935 /* MT7530_P5_MODE_GMAC: P5 -> External phy or 2nd GMAC */
936 val &= ~MHWTRAP_P5_DIS;
939 interface = PHY_INTERFACE_MODE_NA;
942 dev_err(ds->dev, "Unsupported p5_intf_sel %d\n",
947 /* Setup RGMII settings */
948 if (phy_interface_mode_is_rgmii(interface)) {
949 val |= MHWTRAP_P5_RGMII_MODE;
951 /* P5 RGMII RX Clock Control: delay setting for 1000M */
952 mt7530_write(priv, MT7530_P5RGMIIRXCR, CSR_RGMII_EDGE_ALIGN);
954 /* Don't set delay in DSA mode */
955 if (!dsa_is_dsa_port(priv->ds, 5) &&
956 (interface == PHY_INTERFACE_MODE_RGMII_TXID ||
957 interface == PHY_INTERFACE_MODE_RGMII_ID))
958 tx_delay = 4; /* n * 0.5 ns */
960 /* P5 RGMII TX Clock Control: delay x */
961 mt7530_write(priv, MT7530_P5RGMIITXCR,
962 CSR_RGMII_TXC_CFG(0x10 + tx_delay));
964 /* reduce P5 RGMII Tx driving, 8mA */
965 mt7530_write(priv, MT7530_IO_DRV_CR,
966 P5_IO_CLK_DRV(1) | P5_IO_DATA_DRV(1));
969 mt7530_write(priv, MT7530_MHWTRAP, val);
971 dev_dbg(ds->dev, "Setup P5, HWTRAP=0x%x, intf_sel=%s, phy-mode=%s\n",
972 val, p5_intf_modes(priv->p5_intf_sel), phy_modes(interface));
974 priv->p5_interface = interface;
977 mutex_unlock(&priv->reg_mutex);
981 mt753x_cpu_port_enable(struct dsa_switch *ds, int port)
983 struct mt7530_priv *priv = ds->priv;
986 /* Setup max capability of CPU port at first */
987 if (priv->info->cpu_port_config) {
988 ret = priv->info->cpu_port_config(ds, port);
993 /* Enable Mediatek header mode on the cpu port */
994 mt7530_write(priv, MT7530_PVC_P(port),
997 /* Disable flooding by default */
998 mt7530_rmw(priv, MT7530_MFC, BC_FFP_MASK | UNM_FFP_MASK | UNU_FFP_MASK,
999 BC_FFP(BIT(port)) | UNM_FFP(BIT(port)) | UNU_FFP(BIT(port)));
1001 /* Set CPU port number */
1002 if (priv->id == ID_MT7621)
1003 mt7530_rmw(priv, MT7530_MFC, CPU_MASK, CPU_EN | CPU_PORT(port));
1005 /* CPU port gets connected to all user ports of
1008 mt7530_write(priv, MT7530_PCR_P(port),
1009 PCR_MATRIX(dsa_user_ports(priv->ds)));
1015 mt7530_port_enable(struct dsa_switch *ds, int port,
1016 struct phy_device *phy)
1018 struct mt7530_priv *priv = ds->priv;
1020 if (!dsa_is_user_port(ds, port))
1023 mutex_lock(&priv->reg_mutex);
1025 /* Allow the user port gets connected to the cpu port and also
1026 * restore the port matrix if the port is the member of a certain
1029 priv->ports[port].pm |= PCR_MATRIX(BIT(MT7530_CPU_PORT));
1030 priv->ports[port].enable = true;
1031 mt7530_rmw(priv, MT7530_PCR_P(port), PCR_MATRIX_MASK,
1032 priv->ports[port].pm);
1033 mt7530_clear(priv, MT7530_PMCR_P(port), PMCR_LINK_SETTINGS_MASK);
1035 mutex_unlock(&priv->reg_mutex);
1041 mt7530_port_disable(struct dsa_switch *ds, int port)
1043 struct mt7530_priv *priv = ds->priv;
1045 if (!dsa_is_user_port(ds, port))
1048 mutex_lock(&priv->reg_mutex);
1050 /* Clear up all port matrix which could be restored in the next
1051 * enablement for the port.
1053 priv->ports[port].enable = false;
1054 mt7530_rmw(priv, MT7530_PCR_P(port), PCR_MATRIX_MASK,
1056 mt7530_clear(priv, MT7530_PMCR_P(port), PMCR_LINK_SETTINGS_MASK);
1058 mutex_unlock(&priv->reg_mutex);
1062 mt7530_port_change_mtu(struct dsa_switch *ds, int port, int new_mtu)
1064 struct mt7530_priv *priv = ds->priv;
1065 struct mii_bus *bus = priv->bus;
1069 /* When a new MTU is set, DSA always set the CPU port's MTU to the
1070 * largest MTU of the slave ports. Because the switch only has a global
1071 * RX length register, only allowing CPU port here is enough.
1073 if (!dsa_is_cpu_port(ds, port))
1076 mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED);
1078 val = mt7530_mii_read(priv, MT7530_GMACCR);
1079 val &= ~MAX_RX_PKT_LEN_MASK;
1081 /* RX length also includes Ethernet header, MTK tag, and FCS length */
1082 length = new_mtu + ETH_HLEN + MTK_HDR_LEN + ETH_FCS_LEN;
1083 if (length <= 1522) {
1084 val |= MAX_RX_PKT_LEN_1522;
1085 } else if (length <= 1536) {
1086 val |= MAX_RX_PKT_LEN_1536;
1087 } else if (length <= 1552) {
1088 val |= MAX_RX_PKT_LEN_1552;
1090 val &= ~MAX_RX_JUMBO_MASK;
1091 val |= MAX_RX_JUMBO(DIV_ROUND_UP(length, 1024));
1092 val |= MAX_RX_PKT_LEN_JUMBO;
1095 mt7530_mii_write(priv, MT7530_GMACCR, val);
1097 mutex_unlock(&bus->mdio_lock);
1103 mt7530_port_max_mtu(struct dsa_switch *ds, int port)
1105 return MT7530_MAX_MTU;
1109 mt7530_stp_state_set(struct dsa_switch *ds, int port, u8 state)
1111 struct mt7530_priv *priv = ds->priv;
1115 case BR_STATE_DISABLED:
1116 stp_state = MT7530_STP_DISABLED;
1118 case BR_STATE_BLOCKING:
1119 stp_state = MT7530_STP_BLOCKING;
1121 case BR_STATE_LISTENING:
1122 stp_state = MT7530_STP_LISTENING;
1124 case BR_STATE_LEARNING:
1125 stp_state = MT7530_STP_LEARNING;
1127 case BR_STATE_FORWARDING:
1129 stp_state = MT7530_STP_FORWARDING;
1133 mt7530_rmw(priv, MT7530_SSP_P(port), FID_PST_MASK, stp_state);
1137 mt7530_port_pre_bridge_flags(struct dsa_switch *ds, int port,
1138 struct switchdev_brport_flags flags,
1139 struct netlink_ext_ack *extack)
1141 if (flags.mask & ~(BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD |
1149 mt7530_port_bridge_flags(struct dsa_switch *ds, int port,
1150 struct switchdev_brport_flags flags,
1151 struct netlink_ext_ack *extack)
1153 struct mt7530_priv *priv = ds->priv;
1155 if (flags.mask & BR_LEARNING)
1156 mt7530_rmw(priv, MT7530_PSC_P(port), SA_DIS,
1157 flags.val & BR_LEARNING ? 0 : SA_DIS);
1159 if (flags.mask & BR_FLOOD)
1160 mt7530_rmw(priv, MT7530_MFC, UNU_FFP(BIT(port)),
1161 flags.val & BR_FLOOD ? UNU_FFP(BIT(port)) : 0);
1163 if (flags.mask & BR_MCAST_FLOOD)
1164 mt7530_rmw(priv, MT7530_MFC, UNM_FFP(BIT(port)),
1165 flags.val & BR_MCAST_FLOOD ? UNM_FFP(BIT(port)) : 0);
1167 if (flags.mask & BR_BCAST_FLOOD)
1168 mt7530_rmw(priv, MT7530_MFC, BC_FFP(BIT(port)),
1169 flags.val & BR_BCAST_FLOOD ? BC_FFP(BIT(port)) : 0);
1175 mt7530_port_set_mrouter(struct dsa_switch *ds, int port, bool mrouter,
1176 struct netlink_ext_ack *extack)
1178 struct mt7530_priv *priv = ds->priv;
1180 mt7530_rmw(priv, MT7530_MFC, UNM_FFP(BIT(port)),
1181 mrouter ? UNM_FFP(BIT(port)) : 0);
1187 mt7530_port_bridge_join(struct dsa_switch *ds, int port,
1188 struct net_device *bridge)
1190 struct mt7530_priv *priv = ds->priv;
1191 u32 port_bitmap = BIT(MT7530_CPU_PORT);
1194 mutex_lock(&priv->reg_mutex);
1196 for (i = 0; i < MT7530_NUM_PORTS; i++) {
1197 /* Add this port to the port matrix of the other ports in the
1198 * same bridge. If the port is disabled, port matrix is kept
1199 * and not being setup until the port becomes enabled.
1201 if (dsa_is_user_port(ds, i) && i != port) {
1202 if (dsa_to_port(ds, i)->bridge_dev != bridge)
1204 if (priv->ports[i].enable)
1205 mt7530_set(priv, MT7530_PCR_P(i),
1206 PCR_MATRIX(BIT(port)));
1207 priv->ports[i].pm |= PCR_MATRIX(BIT(port));
1209 port_bitmap |= BIT(i);
1213 /* Add the all other ports to this port matrix. */
1214 if (priv->ports[port].enable)
1215 mt7530_rmw(priv, MT7530_PCR_P(port),
1216 PCR_MATRIX_MASK, PCR_MATRIX(port_bitmap));
1217 priv->ports[port].pm |= PCR_MATRIX(port_bitmap);
1219 mutex_unlock(&priv->reg_mutex);
1225 mt7530_port_set_vlan_unaware(struct dsa_switch *ds, int port)
1227 struct mt7530_priv *priv = ds->priv;
1228 bool all_user_ports_removed = true;
1231 /* When a port is removed from the bridge, the port would be set up
1232 * back to the default as is at initial boot which is a VLAN-unaware
1235 mt7530_rmw(priv, MT7530_PCR_P(port), PCR_PORT_VLAN_MASK,
1236 MT7530_PORT_MATRIX_MODE);
1237 mt7530_rmw(priv, MT7530_PVC_P(port), VLAN_ATTR_MASK | PVC_EG_TAG_MASK,
1238 VLAN_ATTR(MT7530_VLAN_TRANSPARENT) |
1239 PVC_EG_TAG(MT7530_VLAN_EG_CONSISTENT));
1241 for (i = 0; i < MT7530_NUM_PORTS; i++) {
1242 if (dsa_is_user_port(ds, i) &&
1243 dsa_port_is_vlan_filtering(dsa_to_port(ds, i))) {
1244 all_user_ports_removed = false;
1249 /* CPU port also does the same thing until all user ports belonging to
1250 * the CPU port get out of VLAN filtering mode.
1252 if (all_user_ports_removed) {
1253 mt7530_write(priv, MT7530_PCR_P(MT7530_CPU_PORT),
1254 PCR_MATRIX(dsa_user_ports(priv->ds)));
1255 mt7530_write(priv, MT7530_PVC_P(MT7530_CPU_PORT), PORT_SPEC_TAG
1256 | PVC_EG_TAG(MT7530_VLAN_EG_CONSISTENT));
1261 mt7530_port_set_vlan_aware(struct dsa_switch *ds, int port)
1263 struct mt7530_priv *priv = ds->priv;
1265 /* The real fabric path would be decided on the membership in the
1266 * entry of VLAN table. PCR_MATRIX set up here with ALL_MEMBERS
1267 * means potential VLAN can be consisting of certain subset of all
1270 mt7530_rmw(priv, MT7530_PCR_P(port),
1271 PCR_MATRIX_MASK, PCR_MATRIX(MT7530_ALL_MEMBERS));
1273 /* Trapped into security mode allows packet forwarding through VLAN
1274 * table lookup. CPU port is set to fallback mode to let untagged
1275 * frames pass through.
1277 if (dsa_is_cpu_port(ds, port))
1278 mt7530_rmw(priv, MT7530_PCR_P(port), PCR_PORT_VLAN_MASK,
1279 MT7530_PORT_FALLBACK_MODE);
1281 mt7530_rmw(priv, MT7530_PCR_P(port), PCR_PORT_VLAN_MASK,
1282 MT7530_PORT_SECURITY_MODE);
1284 /* Set the port as a user port which is to be able to recognize VID
1285 * from incoming packets before fetching entry within the VLAN table.
1287 mt7530_rmw(priv, MT7530_PVC_P(port), VLAN_ATTR_MASK | PVC_EG_TAG_MASK,
1288 VLAN_ATTR(MT7530_VLAN_USER) |
1289 PVC_EG_TAG(MT7530_VLAN_EG_DISABLED));
1293 mt7530_port_bridge_leave(struct dsa_switch *ds, int port,
1294 struct net_device *bridge)
1296 struct mt7530_priv *priv = ds->priv;
1299 mutex_lock(&priv->reg_mutex);
1301 for (i = 0; i < MT7530_NUM_PORTS; i++) {
1302 /* Remove this port from the port matrix of the other ports
1303 * in the same bridge. If the port is disabled, port matrix
1304 * is kept and not being setup until the port becomes enabled.
1305 * And the other port's port matrix cannot be broken when the
1306 * other port is still a VLAN-aware port.
1308 if (dsa_is_user_port(ds, i) && i != port &&
1309 !dsa_port_is_vlan_filtering(dsa_to_port(ds, i))) {
1310 if (dsa_to_port(ds, i)->bridge_dev != bridge)
1312 if (priv->ports[i].enable)
1313 mt7530_clear(priv, MT7530_PCR_P(i),
1314 PCR_MATRIX(BIT(port)));
1315 priv->ports[i].pm &= ~PCR_MATRIX(BIT(port));
1319 /* Set the cpu port to be the only one in the port matrix of
1322 if (priv->ports[port].enable)
1323 mt7530_rmw(priv, MT7530_PCR_P(port), PCR_MATRIX_MASK,
1324 PCR_MATRIX(BIT(MT7530_CPU_PORT)));
1325 priv->ports[port].pm = PCR_MATRIX(BIT(MT7530_CPU_PORT));
1327 mutex_unlock(&priv->reg_mutex);
1331 mt7530_port_fdb_add(struct dsa_switch *ds, int port,
1332 const unsigned char *addr, u16 vid)
1334 struct mt7530_priv *priv = ds->priv;
1336 u8 port_mask = BIT(port);
1338 mutex_lock(&priv->reg_mutex);
1339 mt7530_fdb_write(priv, vid, port_mask, addr, -1, STATIC_ENT);
1340 ret = mt7530_fdb_cmd(priv, MT7530_FDB_WRITE, NULL);
1341 mutex_unlock(&priv->reg_mutex);
1347 mt7530_port_fdb_del(struct dsa_switch *ds, int port,
1348 const unsigned char *addr, u16 vid)
1350 struct mt7530_priv *priv = ds->priv;
1352 u8 port_mask = BIT(port);
1354 mutex_lock(&priv->reg_mutex);
1355 mt7530_fdb_write(priv, vid, port_mask, addr, -1, STATIC_EMP);
1356 ret = mt7530_fdb_cmd(priv, MT7530_FDB_WRITE, NULL);
1357 mutex_unlock(&priv->reg_mutex);
1363 mt7530_port_fdb_dump(struct dsa_switch *ds, int port,
1364 dsa_fdb_dump_cb_t *cb, void *data)
1366 struct mt7530_priv *priv = ds->priv;
1367 struct mt7530_fdb _fdb = { 0 };
1368 int cnt = MT7530_NUM_FDB_RECORDS;
1372 mutex_lock(&priv->reg_mutex);
1374 ret = mt7530_fdb_cmd(priv, MT7530_FDB_START, &rsp);
1379 if (rsp & ATC_SRCH_HIT) {
1380 mt7530_fdb_read(priv, &_fdb);
1381 if (_fdb.port_mask & BIT(port)) {
1382 ret = cb(_fdb.mac, _fdb.vid, _fdb.noarp,
1389 !(rsp & ATC_SRCH_END) &&
1390 !mt7530_fdb_cmd(priv, MT7530_FDB_NEXT, &rsp));
1392 mutex_unlock(&priv->reg_mutex);
1398 mt7530_port_mdb_add(struct dsa_switch *ds, int port,
1399 const struct switchdev_obj_port_mdb *mdb)
1401 struct mt7530_priv *priv = ds->priv;
1402 const u8 *addr = mdb->addr;
1407 mutex_lock(&priv->reg_mutex);
1409 mt7530_fdb_write(priv, vid, 0, addr, 0, STATIC_EMP);
1410 if (!mt7530_fdb_cmd(priv, MT7530_FDB_READ, NULL))
1411 port_mask = (mt7530_read(priv, MT7530_ATRD) >> PORT_MAP)
1414 port_mask |= BIT(port);
1415 mt7530_fdb_write(priv, vid, port_mask, addr, -1, STATIC_ENT);
1416 ret = mt7530_fdb_cmd(priv, MT7530_FDB_WRITE, NULL);
1418 mutex_unlock(&priv->reg_mutex);
1424 mt7530_port_mdb_del(struct dsa_switch *ds, int port,
1425 const struct switchdev_obj_port_mdb *mdb)
1427 struct mt7530_priv *priv = ds->priv;
1428 const u8 *addr = mdb->addr;
1433 mutex_lock(&priv->reg_mutex);
1435 mt7530_fdb_write(priv, vid, 0, addr, 0, STATIC_EMP);
1436 if (!mt7530_fdb_cmd(priv, MT7530_FDB_READ, NULL))
1437 port_mask = (mt7530_read(priv, MT7530_ATRD) >> PORT_MAP)
1440 port_mask &= ~BIT(port);
1441 mt7530_fdb_write(priv, vid, port_mask, addr, -1,
1442 port_mask ? STATIC_ENT : STATIC_EMP);
1443 ret = mt7530_fdb_cmd(priv, MT7530_FDB_WRITE, NULL);
1445 mutex_unlock(&priv->reg_mutex);
1451 mt7530_vlan_cmd(struct mt7530_priv *priv, enum mt7530_vlan_cmd cmd, u16 vid)
1453 struct mt7530_dummy_poll p;
1457 val = VTCR_BUSY | VTCR_FUNC(cmd) | vid;
1458 mt7530_write(priv, MT7530_VTCR, val);
1460 INIT_MT7530_DUMMY_POLL(&p, priv, MT7530_VTCR);
1461 ret = readx_poll_timeout(_mt7530_read, &p, val,
1462 !(val & VTCR_BUSY), 20, 20000);
1464 dev_err(priv->dev, "poll timeout\n");
1468 val = mt7530_read(priv, MT7530_VTCR);
1469 if (val & VTCR_INVALID) {
1470 dev_err(priv->dev, "read VTCR invalid\n");
1478 mt7530_port_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering,
1479 struct netlink_ext_ack *extack)
1481 if (vlan_filtering) {
1482 /* The port is being kept as VLAN-unaware port when bridge is
1483 * set up with vlan_filtering not being set, Otherwise, the
1484 * port and the corresponding CPU port is required the setup
1485 * for becoming a VLAN-aware port.
1487 mt7530_port_set_vlan_aware(ds, port);
1488 mt7530_port_set_vlan_aware(ds, MT7530_CPU_PORT);
1490 mt7530_port_set_vlan_unaware(ds, port);
1497 mt7530_hw_vlan_add(struct mt7530_priv *priv,
1498 struct mt7530_hw_vlan_entry *entry)
1503 new_members = entry->old_members | BIT(entry->port) |
1504 BIT(MT7530_CPU_PORT);
1506 /* Validate the entry with independent learning, create egress tag per
1507 * VLAN and joining the port as one of the port members.
1509 val = IVL_MAC | VTAG_EN | PORT_MEM(new_members) | VLAN_VALID;
1510 mt7530_write(priv, MT7530_VAWD1, val);
1512 /* Decide whether adding tag or not for those outgoing packets from the
1513 * port inside the VLAN.
1515 val = entry->untagged ? MT7530_VLAN_EGRESS_UNTAG :
1516 MT7530_VLAN_EGRESS_TAG;
1517 mt7530_rmw(priv, MT7530_VAWD2,
1518 ETAG_CTRL_P_MASK(entry->port),
1519 ETAG_CTRL_P(entry->port, val));
1521 /* CPU port is always taken as a tagged port for serving more than one
1522 * VLANs across and also being applied with egress type stack mode for
1523 * that VLAN tags would be appended after hardware special tag used as
1526 mt7530_rmw(priv, MT7530_VAWD2,
1527 ETAG_CTRL_P_MASK(MT7530_CPU_PORT),
1528 ETAG_CTRL_P(MT7530_CPU_PORT,
1529 MT7530_VLAN_EGRESS_STACK));
1533 mt7530_hw_vlan_del(struct mt7530_priv *priv,
1534 struct mt7530_hw_vlan_entry *entry)
1539 new_members = entry->old_members & ~BIT(entry->port);
1541 val = mt7530_read(priv, MT7530_VAWD1);
1542 if (!(val & VLAN_VALID)) {
1544 "Cannot be deleted due to invalid entry\n");
1548 /* If certain member apart from CPU port is still alive in the VLAN,
1549 * the entry would be kept valid. Otherwise, the entry is got to be
1552 if (new_members && new_members != BIT(MT7530_CPU_PORT)) {
1553 val = IVL_MAC | VTAG_EN | PORT_MEM(new_members) |
1555 mt7530_write(priv, MT7530_VAWD1, val);
1557 mt7530_write(priv, MT7530_VAWD1, 0);
1558 mt7530_write(priv, MT7530_VAWD2, 0);
1563 mt7530_hw_vlan_update(struct mt7530_priv *priv, u16 vid,
1564 struct mt7530_hw_vlan_entry *entry,
1565 mt7530_vlan_op vlan_op)
1570 mt7530_vlan_cmd(priv, MT7530_VTCR_RD_VID, vid);
1572 val = mt7530_read(priv, MT7530_VAWD1);
1574 entry->old_members = (val >> PORT_MEM_SHFT) & PORT_MEM_MASK;
1576 /* Manipulate entry */
1577 vlan_op(priv, entry);
1579 /* Flush result to hardware */
1580 mt7530_vlan_cmd(priv, MT7530_VTCR_WR_VID, vid);
1584 mt7530_port_vlan_add(struct dsa_switch *ds, int port,
1585 const struct switchdev_obj_port_vlan *vlan,
1586 struct netlink_ext_ack *extack)
1588 bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
1589 bool pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
1590 struct mt7530_hw_vlan_entry new_entry;
1591 struct mt7530_priv *priv = ds->priv;
1593 mutex_lock(&priv->reg_mutex);
1595 mt7530_hw_vlan_entry_init(&new_entry, port, untagged);
1596 mt7530_hw_vlan_update(priv, vlan->vid, &new_entry, mt7530_hw_vlan_add);
1599 mt7530_rmw(priv, MT7530_PPBV1_P(port), G0_PORT_VID_MASK,
1600 G0_PORT_VID(vlan->vid));
1601 priv->ports[port].pvid = vlan->vid;
1604 mutex_unlock(&priv->reg_mutex);
1610 mt7530_port_vlan_del(struct dsa_switch *ds, int port,
1611 const struct switchdev_obj_port_vlan *vlan)
1613 struct mt7530_hw_vlan_entry target_entry;
1614 struct mt7530_priv *priv = ds->priv;
1617 mutex_lock(&priv->reg_mutex);
1619 pvid = priv->ports[port].pvid;
1620 mt7530_hw_vlan_entry_init(&target_entry, port, 0);
1621 mt7530_hw_vlan_update(priv, vlan->vid, &target_entry,
1622 mt7530_hw_vlan_del);
1624 /* PVID is being restored to the default whenever the PVID port
1625 * is being removed from the VLAN.
1627 if (pvid == vlan->vid)
1628 pvid = G0_PORT_VID_DEF;
1630 mt7530_rmw(priv, MT7530_PPBV1_P(port), G0_PORT_VID_MASK, pvid);
1631 priv->ports[port].pvid = pvid;
1633 mutex_unlock(&priv->reg_mutex);
1638 static int mt753x_mirror_port_get(unsigned int id, u32 val)
1640 return (id == ID_MT7531) ? MT7531_MIRROR_PORT_GET(val) :
1644 static int mt753x_mirror_port_set(unsigned int id, u32 val)
1646 return (id == ID_MT7531) ? MT7531_MIRROR_PORT_SET(val) :
1650 static int mt753x_port_mirror_add(struct dsa_switch *ds, int port,
1651 struct dsa_mall_mirror_tc_entry *mirror,
1654 struct mt7530_priv *priv = ds->priv;
1658 /* Check for existent entry */
1659 if ((ingress ? priv->mirror_rx : priv->mirror_tx) & BIT(port))
1662 val = mt7530_read(priv, MT753X_MIRROR_REG(priv->id));
1664 /* MT7530 only supports one monitor port */
1665 monitor_port = mt753x_mirror_port_get(priv->id, val);
1666 if (val & MT753X_MIRROR_EN(priv->id) &&
1667 monitor_port != mirror->to_local_port)
1670 val |= MT753X_MIRROR_EN(priv->id);
1671 val &= ~MT753X_MIRROR_MASK(priv->id);
1672 val |= mt753x_mirror_port_set(priv->id, mirror->to_local_port);
1673 mt7530_write(priv, MT753X_MIRROR_REG(priv->id), val);
1675 val = mt7530_read(priv, MT7530_PCR_P(port));
1678 priv->mirror_rx |= BIT(port);
1681 priv->mirror_tx |= BIT(port);
1683 mt7530_write(priv, MT7530_PCR_P(port), val);
1688 static void mt753x_port_mirror_del(struct dsa_switch *ds, int port,
1689 struct dsa_mall_mirror_tc_entry *mirror)
1691 struct mt7530_priv *priv = ds->priv;
1694 val = mt7530_read(priv, MT7530_PCR_P(port));
1695 if (mirror->ingress) {
1696 val &= ~PORT_RX_MIR;
1697 priv->mirror_rx &= ~BIT(port);
1699 val &= ~PORT_TX_MIR;
1700 priv->mirror_tx &= ~BIT(port);
1702 mt7530_write(priv, MT7530_PCR_P(port), val);
1704 if (!priv->mirror_rx && !priv->mirror_tx) {
1705 val = mt7530_read(priv, MT753X_MIRROR_REG(priv->id));
1706 val &= ~MT753X_MIRROR_EN(priv->id);
1707 mt7530_write(priv, MT753X_MIRROR_REG(priv->id), val);
1711 static enum dsa_tag_protocol
1712 mtk_get_tag_protocol(struct dsa_switch *ds, int port,
1713 enum dsa_tag_protocol mp)
1715 struct mt7530_priv *priv = ds->priv;
1717 if (port != MT7530_CPU_PORT) {
1719 "port not matched with tagging CPU port\n");
1720 return DSA_TAG_PROTO_NONE;
1722 return DSA_TAG_PROTO_MTK;
1726 #ifdef CONFIG_GPIOLIB
1728 mt7530_gpio_to_bit(unsigned int offset)
1730 /* Map GPIO offset to register bit
1731 * [ 2: 0] port 0 LED 0..2 as GPIO 0..2
1732 * [ 6: 4] port 1 LED 0..2 as GPIO 3..5
1733 * [10: 8] port 2 LED 0..2 as GPIO 6..8
1734 * [14:12] port 3 LED 0..2 as GPIO 9..11
1735 * [18:16] port 4 LED 0..2 as GPIO 12..14
1737 return BIT(offset + offset / 3);
1741 mt7530_gpio_get(struct gpio_chip *gc, unsigned int offset)
1743 struct mt7530_priv *priv = gpiochip_get_data(gc);
1744 u32 bit = mt7530_gpio_to_bit(offset);
1746 return !!(mt7530_read(priv, MT7530_LED_GPIO_DATA) & bit);
1750 mt7530_gpio_set(struct gpio_chip *gc, unsigned int offset, int value)
1752 struct mt7530_priv *priv = gpiochip_get_data(gc);
1753 u32 bit = mt7530_gpio_to_bit(offset);
1756 mt7530_set(priv, MT7530_LED_GPIO_DATA, bit);
1758 mt7530_clear(priv, MT7530_LED_GPIO_DATA, bit);
1762 mt7530_gpio_get_direction(struct gpio_chip *gc, unsigned int offset)
1764 struct mt7530_priv *priv = gpiochip_get_data(gc);
1765 u32 bit = mt7530_gpio_to_bit(offset);
1767 return (mt7530_read(priv, MT7530_LED_GPIO_DIR) & bit) ?
1768 GPIO_LINE_DIRECTION_OUT : GPIO_LINE_DIRECTION_IN;
1772 mt7530_gpio_direction_input(struct gpio_chip *gc, unsigned int offset)
1774 struct mt7530_priv *priv = gpiochip_get_data(gc);
1775 u32 bit = mt7530_gpio_to_bit(offset);
1777 mt7530_clear(priv, MT7530_LED_GPIO_OE, bit);
1778 mt7530_clear(priv, MT7530_LED_GPIO_DIR, bit);
1784 mt7530_gpio_direction_output(struct gpio_chip *gc, unsigned int offset, int value)
1786 struct mt7530_priv *priv = gpiochip_get_data(gc);
1787 u32 bit = mt7530_gpio_to_bit(offset);
1789 mt7530_set(priv, MT7530_LED_GPIO_DIR, bit);
1792 mt7530_set(priv, MT7530_LED_GPIO_DATA, bit);
1794 mt7530_clear(priv, MT7530_LED_GPIO_DATA, bit);
1796 mt7530_set(priv, MT7530_LED_GPIO_OE, bit);
1802 mt7530_setup_gpio(struct mt7530_priv *priv)
1804 struct device *dev = priv->dev;
1805 struct gpio_chip *gc;
1807 gc = devm_kzalloc(dev, sizeof(*gc), GFP_KERNEL);
1811 mt7530_write(priv, MT7530_LED_GPIO_OE, 0);
1812 mt7530_write(priv, MT7530_LED_GPIO_DIR, 0);
1813 mt7530_write(priv, MT7530_LED_IO_MODE, 0);
1815 gc->label = "mt7530";
1817 gc->owner = THIS_MODULE;
1818 gc->get_direction = mt7530_gpio_get_direction;
1819 gc->direction_input = mt7530_gpio_direction_input;
1820 gc->direction_output = mt7530_gpio_direction_output;
1821 gc->get = mt7530_gpio_get;
1822 gc->set = mt7530_gpio_set;
1825 gc->can_sleep = true;
1827 return devm_gpiochip_add_data(dev, gc, priv);
1829 #endif /* CONFIG_GPIOLIB */
1832 mt7530_setup(struct dsa_switch *ds)
1834 struct mt7530_priv *priv = ds->priv;
1835 struct device_node *phy_node;
1836 struct device_node *mac_np;
1837 struct mt7530_dummy_poll p;
1838 phy_interface_t interface;
1839 struct device_node *dn;
1843 /* The parent node of master netdev which holds the common system
1844 * controller also is the container for two GMACs nodes representing
1845 * as two netdev instances.
1847 dn = dsa_to_port(ds, MT7530_CPU_PORT)->master->dev.of_node->parent;
1848 ds->mtu_enforcement_ingress = true;
1850 if (priv->id == ID_MT7530) {
1851 regulator_set_voltage(priv->core_pwr, 1000000, 1000000);
1852 ret = regulator_enable(priv->core_pwr);
1855 "Failed to enable core power: %d\n", ret);
1859 regulator_set_voltage(priv->io_pwr, 3300000, 3300000);
1860 ret = regulator_enable(priv->io_pwr);
1862 dev_err(priv->dev, "Failed to enable io pwr: %d\n",
1868 /* Reset whole chip through gpio pin or memory-mapped registers for
1869 * different type of hardware
1872 reset_control_assert(priv->rstc);
1873 usleep_range(1000, 1100);
1874 reset_control_deassert(priv->rstc);
1876 gpiod_set_value_cansleep(priv->reset, 0);
1877 usleep_range(1000, 1100);
1878 gpiod_set_value_cansleep(priv->reset, 1);
1881 /* Waiting for MT7530 got to stable */
1882 INIT_MT7530_DUMMY_POLL(&p, priv, MT7530_HWTRAP);
1883 ret = readx_poll_timeout(_mt7530_read, &p, val, val != 0,
1886 dev_err(priv->dev, "reset timeout\n");
1890 id = mt7530_read(priv, MT7530_CREV);
1891 id >>= CHIP_NAME_SHIFT;
1892 if (id != MT7530_ID) {
1893 dev_err(priv->dev, "chip %x can't be supported\n", id);
1897 /* Reset the switch through internal reset */
1898 mt7530_write(priv, MT7530_SYS_CTRL,
1899 SYS_CTRL_PHY_RST | SYS_CTRL_SW_RST |
1902 /* Enable Port 6 only; P5 as GMAC5 which currently is not supported */
1903 val = mt7530_read(priv, MT7530_MHWTRAP);
1904 val &= ~MHWTRAP_P6_DIS & ~MHWTRAP_PHY_ACCESS;
1905 val |= MHWTRAP_MANUAL;
1906 mt7530_write(priv, MT7530_MHWTRAP, val);
1908 priv->p6_interface = PHY_INTERFACE_MODE_NA;
1910 /* Enable and reset MIB counters */
1911 mt7530_mib_reset(ds);
1913 for (i = 0; i < MT7530_NUM_PORTS; i++) {
1914 /* Disable forwarding by default on all ports */
1915 mt7530_rmw(priv, MT7530_PCR_P(i), PCR_MATRIX_MASK,
1918 if (dsa_is_cpu_port(ds, i)) {
1919 ret = mt753x_cpu_port_enable(ds, i);
1923 mt7530_port_disable(ds, i);
1925 /* Disable learning by default on all user ports */
1926 mt7530_set(priv, MT7530_PSC_P(i), SA_DIS);
1928 /* Enable consistent egress tag */
1929 mt7530_rmw(priv, MT7530_PVC_P(i), PVC_EG_TAG_MASK,
1930 PVC_EG_TAG(MT7530_VLAN_EG_CONSISTENT));
1934 priv->p5_intf_sel = P5_DISABLED;
1935 interface = PHY_INTERFACE_MODE_NA;
1937 if (!dsa_is_unused_port(ds, 5)) {
1938 priv->p5_intf_sel = P5_INTF_SEL_GMAC5;
1939 ret = of_get_phy_mode(dsa_to_port(ds, 5)->dn, &interface);
1940 if (ret && ret != -ENODEV)
1943 /* Scan the ethernet nodes. look for GMAC1, lookup used phy */
1944 for_each_child_of_node(dn, mac_np) {
1945 if (!of_device_is_compatible(mac_np,
1946 "mediatek,eth-mac"))
1949 ret = of_property_read_u32(mac_np, "reg", &id);
1950 if (ret < 0 || id != 1)
1953 phy_node = of_parse_phandle(mac_np, "phy-handle", 0);
1957 if (phy_node->parent == priv->dev->of_node->parent) {
1958 ret = of_get_phy_mode(mac_np, &interface);
1959 if (ret && ret != -ENODEV) {
1960 of_node_put(mac_np);
1963 id = of_mdio_parse_addr(ds->dev, phy_node);
1965 priv->p5_intf_sel = P5_INTF_SEL_PHY_P0;
1967 priv->p5_intf_sel = P5_INTF_SEL_PHY_P4;
1969 of_node_put(mac_np);
1970 of_node_put(phy_node);
1975 #ifdef CONFIG_GPIOLIB
1976 if (of_property_read_bool(priv->dev->of_node, "gpio-controller")) {
1977 ret = mt7530_setup_gpio(priv);
1981 #endif /* CONFIG_GPIOLIB */
1983 mt7530_setup_port5(ds, interface);
1985 /* Flush the FDB table */
1986 ret = mt7530_fdb_cmd(priv, MT7530_FDB_FLUSH, NULL);
1994 mt7531_setup(struct dsa_switch *ds)
1996 struct mt7530_priv *priv = ds->priv;
1997 struct mt7530_dummy_poll p;
2001 /* Reset whole chip through gpio pin or memory-mapped registers for
2002 * different type of hardware
2005 reset_control_assert(priv->rstc);
2006 usleep_range(1000, 1100);
2007 reset_control_deassert(priv->rstc);
2009 gpiod_set_value_cansleep(priv->reset, 0);
2010 usleep_range(1000, 1100);
2011 gpiod_set_value_cansleep(priv->reset, 1);
2014 /* Waiting for MT7530 got to stable */
2015 INIT_MT7530_DUMMY_POLL(&p, priv, MT7530_HWTRAP);
2016 ret = readx_poll_timeout(_mt7530_read, &p, val, val != 0,
2019 dev_err(priv->dev, "reset timeout\n");
2023 id = mt7530_read(priv, MT7531_CREV);
2024 id >>= CHIP_NAME_SHIFT;
2026 if (id != MT7531_ID) {
2027 dev_err(priv->dev, "chip %x can't be supported\n", id);
2031 /* Reset the switch through internal reset */
2032 mt7530_write(priv, MT7530_SYS_CTRL,
2033 SYS_CTRL_PHY_RST | SYS_CTRL_SW_RST |
2036 if (mt7531_dual_sgmii_supported(priv)) {
2037 priv->p5_intf_sel = P5_INTF_SEL_GMAC5_SGMII;
2039 /* Let ds->slave_mii_bus be able to access external phy. */
2040 mt7530_rmw(priv, MT7531_GPIO_MODE1, MT7531_GPIO11_RG_RXD2_MASK,
2041 MT7531_EXT_P_MDC_11);
2042 mt7530_rmw(priv, MT7531_GPIO_MODE1, MT7531_GPIO12_RG_RXD3_MASK,
2043 MT7531_EXT_P_MDIO_12);
2045 priv->p5_intf_sel = P5_INTF_SEL_GMAC5;
2047 dev_dbg(ds->dev, "P5 support %s interface\n",
2048 p5_intf_modes(priv->p5_intf_sel));
2050 mt7530_rmw(priv, MT7531_GPIO_MODE0, MT7531_GPIO0_MASK,
2051 MT7531_GPIO0_INTERRUPT);
2053 /* Let phylink decide the interface later. */
2054 priv->p5_interface = PHY_INTERFACE_MODE_NA;
2055 priv->p6_interface = PHY_INTERFACE_MODE_NA;
2057 /* Enable PHY core PLL, since phy_device has not yet been created
2058 * provided for phy_[read,write]_mmd_indirect is called, we provide
2059 * our own mt7531_ind_mmd_phy_[read,write] to complete this
2062 val = mt7531_ind_c45_phy_read(priv, MT753X_CTRL_PHY_ADDR,
2063 MDIO_MMD_VEND2, CORE_PLL_GROUP4);
2064 val |= MT7531_PHY_PLL_BYPASS_MODE;
2065 val &= ~MT7531_PHY_PLL_OFF;
2066 mt7531_ind_c45_phy_write(priv, MT753X_CTRL_PHY_ADDR, MDIO_MMD_VEND2,
2067 CORE_PLL_GROUP4, val);
2069 /* BPDU to CPU port */
2070 mt7530_rmw(priv, MT7531_CFC, MT7531_CPU_PMAP_MASK,
2071 BIT(MT7530_CPU_PORT));
2072 mt7530_rmw(priv, MT753X_BPC, MT753X_BPDU_PORT_FW_MASK,
2073 MT753X_BPDU_CPU_ONLY);
2075 /* Enable and reset MIB counters */
2076 mt7530_mib_reset(ds);
2078 for (i = 0; i < MT7530_NUM_PORTS; i++) {
2079 /* Disable forwarding by default on all ports */
2080 mt7530_rmw(priv, MT7530_PCR_P(i), PCR_MATRIX_MASK,
2083 mt7530_set(priv, MT7531_DBG_CNT(i), MT7531_DIS_CLR);
2085 if (dsa_is_cpu_port(ds, i)) {
2086 ret = mt753x_cpu_port_enable(ds, i);
2090 mt7530_port_disable(ds, i);
2092 /* Disable learning by default on all user ports */
2093 mt7530_set(priv, MT7530_PSC_P(i), SA_DIS);
2096 /* Enable consistent egress tag */
2097 mt7530_rmw(priv, MT7530_PVC_P(i), PVC_EG_TAG_MASK,
2098 PVC_EG_TAG(MT7530_VLAN_EG_CONSISTENT));
2101 ds->mtu_enforcement_ingress = true;
2103 /* Flush the FDB table */
2104 ret = mt7530_fdb_cmd(priv, MT7530_FDB_FLUSH, NULL);
2112 mt7530_phy_mode_supported(struct dsa_switch *ds, int port,
2113 const struct phylink_link_state *state)
2115 struct mt7530_priv *priv = ds->priv;
2118 case 0 ... 4: /* Internal phy */
2119 if (state->interface != PHY_INTERFACE_MODE_GMII)
2122 case 5: /* 2nd cpu port with phy of port 0 or 4 / external phy */
2123 if (!phy_interface_mode_is_rgmii(state->interface) &&
2124 state->interface != PHY_INTERFACE_MODE_MII &&
2125 state->interface != PHY_INTERFACE_MODE_GMII)
2128 case 6: /* 1st cpu port */
2129 if (state->interface != PHY_INTERFACE_MODE_RGMII &&
2130 state->interface != PHY_INTERFACE_MODE_TRGMII)
2134 dev_err(priv->dev, "%s: unsupported port: %i\n", __func__,
2142 static bool mt7531_is_rgmii_port(struct mt7530_priv *priv, u32 port)
2144 return (port == 5) && (priv->p5_intf_sel != P5_INTF_SEL_GMAC5_SGMII);
2148 mt7531_phy_mode_supported(struct dsa_switch *ds, int port,
2149 const struct phylink_link_state *state)
2151 struct mt7530_priv *priv = ds->priv;
2154 case 0 ... 4: /* Internal phy */
2155 if (state->interface != PHY_INTERFACE_MODE_GMII)
2158 case 5: /* 2nd cpu port supports either rgmii or sgmii/8023z */
2159 if (mt7531_is_rgmii_port(priv, port))
2160 return phy_interface_mode_is_rgmii(state->interface);
2162 case 6: /* 1st cpu port supports sgmii/8023z only */
2163 if (state->interface != PHY_INTERFACE_MODE_SGMII &&
2164 !phy_interface_mode_is_8023z(state->interface))
2168 dev_err(priv->dev, "%s: unsupported port: %i\n", __func__,
2177 mt753x_phy_mode_supported(struct dsa_switch *ds, int port,
2178 const struct phylink_link_state *state)
2180 struct mt7530_priv *priv = ds->priv;
2182 return priv->info->phy_mode_supported(ds, port, state);
2186 mt753x_pad_setup(struct dsa_switch *ds, const struct phylink_link_state *state)
2188 struct mt7530_priv *priv = ds->priv;
2190 return priv->info->pad_setup(ds, state->interface);
2194 mt7530_mac_config(struct dsa_switch *ds, int port, unsigned int mode,
2195 phy_interface_t interface)
2197 struct mt7530_priv *priv = ds->priv;
2199 /* Only need to setup port5. */
2203 mt7530_setup_port5(priv->ds, interface);
2208 static int mt7531_rgmii_setup(struct mt7530_priv *priv, u32 port,
2209 phy_interface_t interface,
2210 struct phy_device *phydev)
2214 if (!mt7531_is_rgmii_port(priv, port)) {
2215 dev_err(priv->dev, "RGMII mode is not available for port %d\n",
2220 val = mt7530_read(priv, MT7531_CLKGEN_CTRL);
2222 val &= ~GP_MODE_MASK;
2223 val |= GP_MODE(MT7531_GP_MODE_RGMII);
2224 val &= ~CLK_SKEW_IN_MASK;
2225 val |= CLK_SKEW_IN(MT7531_CLK_SKEW_NO_CHG);
2226 val &= ~CLK_SKEW_OUT_MASK;
2227 val |= CLK_SKEW_OUT(MT7531_CLK_SKEW_NO_CHG);
2228 val |= TXCLK_NO_REVERSE | RXCLK_NO_DELAY;
2230 /* Do not adjust rgmii delay when vendor phy driver presents. */
2231 if (!phydev || phy_driver_is_genphy(phydev)) {
2232 val &= ~(TXCLK_NO_REVERSE | RXCLK_NO_DELAY);
2233 switch (interface) {
2234 case PHY_INTERFACE_MODE_RGMII:
2235 val |= TXCLK_NO_REVERSE;
2236 val |= RXCLK_NO_DELAY;
2238 case PHY_INTERFACE_MODE_RGMII_RXID:
2239 val |= TXCLK_NO_REVERSE;
2241 case PHY_INTERFACE_MODE_RGMII_TXID:
2242 val |= RXCLK_NO_DELAY;
2244 case PHY_INTERFACE_MODE_RGMII_ID:
2250 mt7530_write(priv, MT7531_CLKGEN_CTRL, val);
2255 static void mt7531_sgmii_validate(struct mt7530_priv *priv, int port,
2256 unsigned long *supported)
2258 /* Port5 supports ethier RGMII or SGMII.
2259 * Port6 supports SGMII only.
2263 if (mt7531_is_rgmii_port(priv, port))
2267 phylink_set(supported, 1000baseX_Full);
2268 phylink_set(supported, 2500baseX_Full);
2269 phylink_set(supported, 2500baseT_Full);
2274 mt7531_sgmii_link_up_force(struct dsa_switch *ds, int port,
2275 unsigned int mode, phy_interface_t interface,
2276 int speed, int duplex)
2278 struct mt7530_priv *priv = ds->priv;
2281 /* For adjusting speed and duplex of SGMII force mode. */
2282 if (interface != PHY_INTERFACE_MODE_SGMII ||
2283 phylink_autoneg_inband(mode))
2286 /* SGMII force mode setting */
2287 val = mt7530_read(priv, MT7531_SGMII_MODE(port));
2288 val &= ~MT7531_SGMII_IF_MODE_MASK;
2292 val |= MT7531_SGMII_FORCE_SPEED_10;
2295 val |= MT7531_SGMII_FORCE_SPEED_100;
2298 val |= MT7531_SGMII_FORCE_SPEED_1000;
2302 /* MT7531 SGMII 1G force mode can only work in full duplex mode,
2303 * no matter MT7531_SGMII_FORCE_HALF_DUPLEX is set or not.
2305 if ((speed == SPEED_10 || speed == SPEED_100) &&
2306 duplex != DUPLEX_FULL)
2307 val |= MT7531_SGMII_FORCE_HALF_DUPLEX;
2309 mt7530_write(priv, MT7531_SGMII_MODE(port), val);
2312 static bool mt753x_is_mac_port(u32 port)
2314 return (port == 5 || port == 6);
2317 static int mt7531_sgmii_setup_mode_force(struct mt7530_priv *priv, u32 port,
2318 phy_interface_t interface)
2322 if (!mt753x_is_mac_port(port))
2325 mt7530_set(priv, MT7531_QPHY_PWR_STATE_CTRL(port),
2326 MT7531_SGMII_PHYA_PWD);
2328 val = mt7530_read(priv, MT7531_PHYA_CTRL_SIGNAL3(port));
2329 val &= ~MT7531_RG_TPHY_SPEED_MASK;
2330 /* Setup 2.5 times faster clock for 2.5Gbps data speeds with 10B/8B
2333 val |= (interface == PHY_INTERFACE_MODE_2500BASEX) ?
2334 MT7531_RG_TPHY_SPEED_3_125G : MT7531_RG_TPHY_SPEED_1_25G;
2335 mt7530_write(priv, MT7531_PHYA_CTRL_SIGNAL3(port), val);
2337 mt7530_clear(priv, MT7531_PCS_CONTROL_1(port), MT7531_SGMII_AN_ENABLE);
2339 /* MT7531 SGMII 1G and 2.5G force mode can only work in full duplex
2340 * mode, no matter MT7531_SGMII_FORCE_HALF_DUPLEX is set or not.
2342 mt7530_rmw(priv, MT7531_SGMII_MODE(port),
2343 MT7531_SGMII_IF_MODE_MASK | MT7531_SGMII_REMOTE_FAULT_DIS,
2344 MT7531_SGMII_FORCE_SPEED_1000);
2346 mt7530_write(priv, MT7531_QPHY_PWR_STATE_CTRL(port), 0);
2351 static int mt7531_sgmii_setup_mode_an(struct mt7530_priv *priv, int port,
2352 phy_interface_t interface)
2354 if (!mt753x_is_mac_port(port))
2357 mt7530_set(priv, MT7531_QPHY_PWR_STATE_CTRL(port),
2358 MT7531_SGMII_PHYA_PWD);
2360 mt7530_rmw(priv, MT7531_PHYA_CTRL_SIGNAL3(port),
2361 MT7531_RG_TPHY_SPEED_MASK, MT7531_RG_TPHY_SPEED_1_25G);
2363 mt7530_set(priv, MT7531_SGMII_MODE(port),
2364 MT7531_SGMII_REMOTE_FAULT_DIS |
2365 MT7531_SGMII_SPEED_DUPLEX_AN);
2367 mt7530_rmw(priv, MT7531_PCS_SPEED_ABILITY(port),
2368 MT7531_SGMII_TX_CONFIG_MASK, 1);
2370 mt7530_set(priv, MT7531_PCS_CONTROL_1(port), MT7531_SGMII_AN_ENABLE);
2372 mt7530_set(priv, MT7531_PCS_CONTROL_1(port), MT7531_SGMII_AN_RESTART);
2374 mt7530_write(priv, MT7531_QPHY_PWR_STATE_CTRL(port), 0);
2379 static void mt7531_sgmii_restart_an(struct dsa_switch *ds, int port)
2381 struct mt7530_priv *priv = ds->priv;
2384 /* Only restart AN when AN is enabled */
2385 val = mt7530_read(priv, MT7531_PCS_CONTROL_1(port));
2386 if (val & MT7531_SGMII_AN_ENABLE) {
2387 val |= MT7531_SGMII_AN_RESTART;
2388 mt7530_write(priv, MT7531_PCS_CONTROL_1(port), val);
2393 mt7531_mac_config(struct dsa_switch *ds, int port, unsigned int mode,
2394 phy_interface_t interface)
2396 struct mt7530_priv *priv = ds->priv;
2397 struct phy_device *phydev;
2398 struct dsa_port *dp;
2400 if (!mt753x_is_mac_port(port)) {
2401 dev_err(priv->dev, "port %d is not a MAC port\n", port);
2405 switch (interface) {
2406 case PHY_INTERFACE_MODE_RGMII:
2407 case PHY_INTERFACE_MODE_RGMII_ID:
2408 case PHY_INTERFACE_MODE_RGMII_RXID:
2409 case PHY_INTERFACE_MODE_RGMII_TXID:
2410 dp = dsa_to_port(ds, port);
2411 phydev = dp->slave->phydev;
2412 return mt7531_rgmii_setup(priv, port, interface, phydev);
2413 case PHY_INTERFACE_MODE_SGMII:
2414 return mt7531_sgmii_setup_mode_an(priv, port, interface);
2415 case PHY_INTERFACE_MODE_NA:
2416 case PHY_INTERFACE_MODE_1000BASEX:
2417 case PHY_INTERFACE_MODE_2500BASEX:
2418 if (phylink_autoneg_inband(mode))
2421 return mt7531_sgmii_setup_mode_force(priv, port, interface);
2430 mt753x_mac_config(struct dsa_switch *ds, int port, unsigned int mode,
2431 const struct phylink_link_state *state)
2433 struct mt7530_priv *priv = ds->priv;
2435 return priv->info->mac_port_config(ds, port, mode, state->interface);
2439 mt753x_phylink_mac_config(struct dsa_switch *ds, int port, unsigned int mode,
2440 const struct phylink_link_state *state)
2442 struct mt7530_priv *priv = ds->priv;
2443 u32 mcr_cur, mcr_new;
2445 if (!mt753x_phy_mode_supported(ds, port, state))
2449 case 0 ... 4: /* Internal phy */
2450 if (state->interface != PHY_INTERFACE_MODE_GMII)
2453 case 5: /* 2nd cpu port with phy of port 0 or 4 / external phy */
2454 if (priv->p5_interface == state->interface)
2457 if (mt753x_mac_config(ds, port, mode, state) < 0)
2460 if (priv->p5_intf_sel != P5_DISABLED)
2461 priv->p5_interface = state->interface;
2463 case 6: /* 1st cpu port */
2464 if (priv->p6_interface == state->interface)
2467 mt753x_pad_setup(ds, state);
2469 if (mt753x_mac_config(ds, port, mode, state) < 0)
2472 priv->p6_interface = state->interface;
2476 dev_err(ds->dev, "%s: unsupported %s port: %i\n",
2477 __func__, phy_modes(state->interface), port);
2481 if (phylink_autoneg_inband(mode) &&
2482 state->interface != PHY_INTERFACE_MODE_SGMII) {
2483 dev_err(ds->dev, "%s: in-band negotiation unsupported\n",
2488 mcr_cur = mt7530_read(priv, MT7530_PMCR_P(port));
2490 mcr_new &= ~PMCR_LINK_SETTINGS_MASK;
2491 mcr_new |= PMCR_IFG_XMIT(1) | PMCR_MAC_MODE | PMCR_BACKOFF_EN |
2492 PMCR_BACKPR_EN | PMCR_FORCE_MODE_ID(priv->id);
2494 /* Are we connected to external phy */
2495 if (port == 5 && dsa_is_user_port(ds, 5))
2496 mcr_new |= PMCR_EXT_PHY;
2498 if (mcr_new != mcr_cur)
2499 mt7530_write(priv, MT7530_PMCR_P(port), mcr_new);
2503 mt753x_phylink_mac_an_restart(struct dsa_switch *ds, int port)
2505 struct mt7530_priv *priv = ds->priv;
2507 if (!priv->info->mac_pcs_an_restart)
2510 priv->info->mac_pcs_an_restart(ds, port);
2513 static void mt753x_phylink_mac_link_down(struct dsa_switch *ds, int port,
2515 phy_interface_t interface)
2517 struct mt7530_priv *priv = ds->priv;
2519 mt7530_clear(priv, MT7530_PMCR_P(port), PMCR_LINK_SETTINGS_MASK);
2522 static void mt753x_mac_pcs_link_up(struct dsa_switch *ds, int port,
2523 unsigned int mode, phy_interface_t interface,
2524 int speed, int duplex)
2526 struct mt7530_priv *priv = ds->priv;
2528 if (!priv->info->mac_pcs_link_up)
2531 priv->info->mac_pcs_link_up(ds, port, mode, interface, speed, duplex);
2534 static void mt753x_phylink_mac_link_up(struct dsa_switch *ds, int port,
2536 phy_interface_t interface,
2537 struct phy_device *phydev,
2538 int speed, int duplex,
2539 bool tx_pause, bool rx_pause)
2541 struct mt7530_priv *priv = ds->priv;
2544 mt753x_mac_pcs_link_up(ds, port, mode, interface, speed, duplex);
2546 mcr = PMCR_RX_EN | PMCR_TX_EN | PMCR_FORCE_LNK;
2548 /* MT753x MAC works in 1G full duplex mode for all up-clocked
2551 if (interface == PHY_INTERFACE_MODE_TRGMII ||
2552 (phy_interface_mode_is_8023z(interface))) {
2554 duplex = DUPLEX_FULL;
2559 mcr |= PMCR_FORCE_SPEED_1000;
2562 mcr |= PMCR_FORCE_SPEED_100;
2565 if (duplex == DUPLEX_FULL) {
2566 mcr |= PMCR_FORCE_FDX;
2568 mcr |= PMCR_TX_FC_EN;
2570 mcr |= PMCR_RX_FC_EN;
2573 if (mode == MLO_AN_PHY && phydev && phy_init_eee(phydev, 0) >= 0) {
2576 mcr |= PMCR_FORCE_EEE1G;
2579 mcr |= PMCR_FORCE_EEE100;
2584 mt7530_set(priv, MT7530_PMCR_P(port), mcr);
2588 mt7531_cpu_port_config(struct dsa_switch *ds, int port)
2590 struct mt7530_priv *priv = ds->priv;
2591 phy_interface_t interface;
2597 if (mt7531_is_rgmii_port(priv, port))
2598 interface = PHY_INTERFACE_MODE_RGMII;
2600 interface = PHY_INTERFACE_MODE_2500BASEX;
2602 priv->p5_interface = interface;
2605 interface = PHY_INTERFACE_MODE_2500BASEX;
2607 mt7531_pad_setup(ds, interface);
2609 priv->p6_interface = interface;
2615 if (interface == PHY_INTERFACE_MODE_2500BASEX)
2620 ret = mt7531_mac_config(ds, port, MLO_AN_FIXED, interface);
2623 mt7530_write(priv, MT7530_PMCR_P(port),
2624 PMCR_CPU_PORT_SETTING(priv->id));
2625 mt753x_phylink_mac_link_up(ds, port, MLO_AN_FIXED, interface, NULL,
2626 speed, DUPLEX_FULL, true, true);
2632 mt7530_mac_port_validate(struct dsa_switch *ds, int port,
2633 unsigned long *supported)
2636 phylink_set(supported, 1000baseX_Full);
2639 static void mt7531_mac_port_validate(struct dsa_switch *ds, int port,
2640 unsigned long *supported)
2642 struct mt7530_priv *priv = ds->priv;
2644 mt7531_sgmii_validate(priv, port, supported);
2648 mt753x_phylink_validate(struct dsa_switch *ds, int port,
2649 unsigned long *supported,
2650 struct phylink_link_state *state)
2652 __ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = { 0, };
2653 struct mt7530_priv *priv = ds->priv;
2655 if (state->interface != PHY_INTERFACE_MODE_NA &&
2656 !mt753x_phy_mode_supported(ds, port, state)) {
2657 linkmode_zero(supported);
2661 phylink_set_port_modes(mask);
2663 if (state->interface != PHY_INTERFACE_MODE_TRGMII ||
2664 !phy_interface_mode_is_8023z(state->interface)) {
2665 phylink_set(mask, 10baseT_Half);
2666 phylink_set(mask, 10baseT_Full);
2667 phylink_set(mask, 100baseT_Half);
2668 phylink_set(mask, 100baseT_Full);
2669 phylink_set(mask, Autoneg);
2672 /* This switch only supports 1G full-duplex. */
2673 if (state->interface != PHY_INTERFACE_MODE_MII)
2674 phylink_set(mask, 1000baseT_Full);
2676 priv->info->mac_port_validate(ds, port, mask);
2678 phylink_set(mask, Pause);
2679 phylink_set(mask, Asym_Pause);
2681 linkmode_and(supported, supported, mask);
2682 linkmode_and(state->advertising, state->advertising, mask);
2684 /* We can only operate at 2500BaseX or 1000BaseX. If requested
2685 * to advertise both, only report advertising at 2500BaseX.
2687 phylink_helper_basex_speed(state);
2691 mt7530_phylink_mac_link_state(struct dsa_switch *ds, int port,
2692 struct phylink_link_state *state)
2694 struct mt7530_priv *priv = ds->priv;
2697 if (port < 0 || port >= MT7530_NUM_PORTS)
2700 pmsr = mt7530_read(priv, MT7530_PMSR_P(port));
2702 state->link = (pmsr & PMSR_LINK);
2703 state->an_complete = state->link;
2704 state->duplex = !!(pmsr & PMSR_DPX);
2706 switch (pmsr & PMSR_SPEED_MASK) {
2708 state->speed = SPEED_10;
2710 case PMSR_SPEED_100:
2711 state->speed = SPEED_100;
2713 case PMSR_SPEED_1000:
2714 state->speed = SPEED_1000;
2717 state->speed = SPEED_UNKNOWN;
2721 state->pause &= ~(MLO_PAUSE_RX | MLO_PAUSE_TX);
2722 if (pmsr & PMSR_RX_FC)
2723 state->pause |= MLO_PAUSE_RX;
2724 if (pmsr & PMSR_TX_FC)
2725 state->pause |= MLO_PAUSE_TX;
2731 mt7531_sgmii_pcs_get_state_an(struct mt7530_priv *priv, int port,
2732 struct phylink_link_state *state)
2737 status = mt7530_read(priv, MT7531_PCS_CONTROL_1(port));
2738 state->link = !!(status & MT7531_SGMII_LINK_STATUS);
2739 if (state->interface == PHY_INTERFACE_MODE_SGMII &&
2740 (status & MT7531_SGMII_AN_ENABLE)) {
2741 val = mt7530_read(priv, MT7531_PCS_SPEED_ABILITY(port));
2742 config_reg = val >> 16;
2744 switch (config_reg & LPA_SGMII_SPD_MASK) {
2745 case LPA_SGMII_1000:
2746 state->speed = SPEED_1000;
2749 state->speed = SPEED_100;
2752 state->speed = SPEED_10;
2755 dev_err(priv->dev, "invalid sgmii PHY speed\n");
2756 state->link = false;
2760 if (config_reg & LPA_SGMII_FULL_DUPLEX)
2761 state->duplex = DUPLEX_FULL;
2763 state->duplex = DUPLEX_HALF;
2770 mt7531_phylink_mac_link_state(struct dsa_switch *ds, int port,
2771 struct phylink_link_state *state)
2773 struct mt7530_priv *priv = ds->priv;
2775 if (state->interface == PHY_INTERFACE_MODE_SGMII)
2776 return mt7531_sgmii_pcs_get_state_an(priv, port, state);
2782 mt753x_phylink_mac_link_state(struct dsa_switch *ds, int port,
2783 struct phylink_link_state *state)
2785 struct mt7530_priv *priv = ds->priv;
2787 return priv->info->mac_port_get_state(ds, port, state);
2791 mt753x_setup(struct dsa_switch *ds)
2793 struct mt7530_priv *priv = ds->priv;
2795 return priv->info->sw_setup(ds);
2799 mt753x_phy_read(struct dsa_switch *ds, int port, int regnum)
2801 struct mt7530_priv *priv = ds->priv;
2803 return priv->info->phy_read(ds, port, regnum);
2807 mt753x_phy_write(struct dsa_switch *ds, int port, int regnum, u16 val)
2809 struct mt7530_priv *priv = ds->priv;
2811 return priv->info->phy_write(ds, port, regnum, val);
2814 static int mt753x_get_mac_eee(struct dsa_switch *ds, int port,
2815 struct ethtool_eee *e)
2817 struct mt7530_priv *priv = ds->priv;
2818 u32 eeecr = mt7530_read(priv, MT7530_PMEEECR_P(port));
2820 e->tx_lpi_enabled = !(eeecr & LPI_MODE_EN);
2821 e->tx_lpi_timer = GET_LPI_THRESH(eeecr);
2826 static int mt753x_set_mac_eee(struct dsa_switch *ds, int port,
2827 struct ethtool_eee *e)
2829 struct mt7530_priv *priv = ds->priv;
2830 u32 set, mask = LPI_THRESH_MASK | LPI_MODE_EN;
2832 if (e->tx_lpi_timer > 0xFFF)
2835 set = SET_LPI_THRESH(e->tx_lpi_timer);
2836 if (!e->tx_lpi_enabled)
2837 /* Force LPI Mode without a delay */
2839 mt7530_rmw(priv, MT7530_PMEEECR_P(port), mask, set);
2844 static const struct dsa_switch_ops mt7530_switch_ops = {
2845 .get_tag_protocol = mtk_get_tag_protocol,
2846 .setup = mt753x_setup,
2847 .get_strings = mt7530_get_strings,
2848 .phy_read = mt753x_phy_read,
2849 .phy_write = mt753x_phy_write,
2850 .get_ethtool_stats = mt7530_get_ethtool_stats,
2851 .get_sset_count = mt7530_get_sset_count,
2852 .set_ageing_time = mt7530_set_ageing_time,
2853 .port_enable = mt7530_port_enable,
2854 .port_disable = mt7530_port_disable,
2855 .port_change_mtu = mt7530_port_change_mtu,
2856 .port_max_mtu = mt7530_port_max_mtu,
2857 .port_stp_state_set = mt7530_stp_state_set,
2858 .port_pre_bridge_flags = mt7530_port_pre_bridge_flags,
2859 .port_bridge_flags = mt7530_port_bridge_flags,
2860 .port_set_mrouter = mt7530_port_set_mrouter,
2861 .port_bridge_join = mt7530_port_bridge_join,
2862 .port_bridge_leave = mt7530_port_bridge_leave,
2863 .port_fdb_add = mt7530_port_fdb_add,
2864 .port_fdb_del = mt7530_port_fdb_del,
2865 .port_fdb_dump = mt7530_port_fdb_dump,
2866 .port_mdb_add = mt7530_port_mdb_add,
2867 .port_mdb_del = mt7530_port_mdb_del,
2868 .port_vlan_filtering = mt7530_port_vlan_filtering,
2869 .port_vlan_add = mt7530_port_vlan_add,
2870 .port_vlan_del = mt7530_port_vlan_del,
2871 .port_mirror_add = mt753x_port_mirror_add,
2872 .port_mirror_del = mt753x_port_mirror_del,
2873 .phylink_validate = mt753x_phylink_validate,
2874 .phylink_mac_link_state = mt753x_phylink_mac_link_state,
2875 .phylink_mac_config = mt753x_phylink_mac_config,
2876 .phylink_mac_an_restart = mt753x_phylink_mac_an_restart,
2877 .phylink_mac_link_down = mt753x_phylink_mac_link_down,
2878 .phylink_mac_link_up = mt753x_phylink_mac_link_up,
2879 .get_mac_eee = mt753x_get_mac_eee,
2880 .set_mac_eee = mt753x_set_mac_eee,
2883 static const struct mt753x_info mt753x_table[] = {
2886 .sw_setup = mt7530_setup,
2887 .phy_read = mt7530_phy_read,
2888 .phy_write = mt7530_phy_write,
2889 .pad_setup = mt7530_pad_clk_setup,
2890 .phy_mode_supported = mt7530_phy_mode_supported,
2891 .mac_port_validate = mt7530_mac_port_validate,
2892 .mac_port_get_state = mt7530_phylink_mac_link_state,
2893 .mac_port_config = mt7530_mac_config,
2897 .sw_setup = mt7530_setup,
2898 .phy_read = mt7530_phy_read,
2899 .phy_write = mt7530_phy_write,
2900 .pad_setup = mt7530_pad_clk_setup,
2901 .phy_mode_supported = mt7530_phy_mode_supported,
2902 .mac_port_validate = mt7530_mac_port_validate,
2903 .mac_port_get_state = mt7530_phylink_mac_link_state,
2904 .mac_port_config = mt7530_mac_config,
2908 .sw_setup = mt7531_setup,
2909 .phy_read = mt7531_ind_phy_read,
2910 .phy_write = mt7531_ind_phy_write,
2911 .pad_setup = mt7531_pad_setup,
2912 .cpu_port_config = mt7531_cpu_port_config,
2913 .phy_mode_supported = mt7531_phy_mode_supported,
2914 .mac_port_validate = mt7531_mac_port_validate,
2915 .mac_port_get_state = mt7531_phylink_mac_link_state,
2916 .mac_port_config = mt7531_mac_config,
2917 .mac_pcs_an_restart = mt7531_sgmii_restart_an,
2918 .mac_pcs_link_up = mt7531_sgmii_link_up_force,
2922 static const struct of_device_id mt7530_of_match[] = {
2923 { .compatible = "mediatek,mt7621", .data = &mt753x_table[ID_MT7621], },
2924 { .compatible = "mediatek,mt7530", .data = &mt753x_table[ID_MT7530], },
2925 { .compatible = "mediatek,mt7531", .data = &mt753x_table[ID_MT7531], },
2928 MODULE_DEVICE_TABLE(of, mt7530_of_match);
2931 mt7530_probe(struct mdio_device *mdiodev)
2933 struct mt7530_priv *priv;
2934 struct device_node *dn;
2936 dn = mdiodev->dev.of_node;
2938 priv = devm_kzalloc(&mdiodev->dev, sizeof(*priv), GFP_KERNEL);
2942 priv->ds = devm_kzalloc(&mdiodev->dev, sizeof(*priv->ds), GFP_KERNEL);
2946 priv->ds->dev = &mdiodev->dev;
2947 priv->ds->num_ports = DSA_MAX_PORTS;
2949 /* Use medatek,mcm property to distinguish hardware type that would
2950 * casues a little bit differences on power-on sequence.
2952 priv->mcm = of_property_read_bool(dn, "mediatek,mcm");
2954 dev_info(&mdiodev->dev, "MT7530 adapts as multi-chip module\n");
2956 priv->rstc = devm_reset_control_get(&mdiodev->dev, "mcm");
2957 if (IS_ERR(priv->rstc)) {
2958 dev_err(&mdiodev->dev, "Couldn't get our reset line\n");
2959 return PTR_ERR(priv->rstc);
2963 /* Get the hardware identifier from the devicetree node.
2964 * We will need it for some of the clock and regulator setup.
2966 priv->info = of_device_get_match_data(&mdiodev->dev);
2970 /* Sanity check if these required device operations are filled
2973 if (!priv->info->sw_setup || !priv->info->pad_setup ||
2974 !priv->info->phy_read || !priv->info->phy_write ||
2975 !priv->info->phy_mode_supported ||
2976 !priv->info->mac_port_validate ||
2977 !priv->info->mac_port_get_state || !priv->info->mac_port_config)
2980 priv->id = priv->info->id;
2982 if (priv->id == ID_MT7530) {
2983 priv->core_pwr = devm_regulator_get(&mdiodev->dev, "core");
2984 if (IS_ERR(priv->core_pwr))
2985 return PTR_ERR(priv->core_pwr);
2987 priv->io_pwr = devm_regulator_get(&mdiodev->dev, "io");
2988 if (IS_ERR(priv->io_pwr))
2989 return PTR_ERR(priv->io_pwr);
2992 /* Not MCM that indicates switch works as the remote standalone
2993 * integrated circuit so the GPIO pin would be used to complete
2994 * the reset, otherwise memory-mapped register accessing used
2995 * through syscon provides in the case of MCM.
2998 priv->reset = devm_gpiod_get_optional(&mdiodev->dev, "reset",
3000 if (IS_ERR(priv->reset)) {
3001 dev_err(&mdiodev->dev, "Couldn't get our reset line\n");
3002 return PTR_ERR(priv->reset);
3006 priv->bus = mdiodev->bus;
3007 priv->dev = &mdiodev->dev;
3008 priv->ds->priv = priv;
3009 priv->ds->ops = &mt7530_switch_ops;
3010 mutex_init(&priv->reg_mutex);
3011 dev_set_drvdata(&mdiodev->dev, priv);
3013 return dsa_register_switch(priv->ds);
3017 mt7530_remove(struct mdio_device *mdiodev)
3019 struct mt7530_priv *priv = dev_get_drvdata(&mdiodev->dev);
3022 ret = regulator_disable(priv->core_pwr);
3025 "Failed to disable core power: %d\n", ret);
3027 ret = regulator_disable(priv->io_pwr);
3029 dev_err(priv->dev, "Failed to disable io pwr: %d\n",
3032 dsa_unregister_switch(priv->ds);
3033 mutex_destroy(&priv->reg_mutex);
3036 static struct mdio_driver mt7530_mdio_driver = {
3037 .probe = mt7530_probe,
3038 .remove = mt7530_remove,
3041 .of_match_table = mt7530_of_match,
3045 mdio_module_driver(mt7530_mdio_driver);
3047 MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>");
3048 MODULE_DESCRIPTION("Driver for Mediatek MT7530 Switch");
3049 MODULE_LICENSE("GPL");