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 /* String, offset, and register size in bytes if different from 4 bytes */
28 static const struct mt7530_mib_desc mt7530_mib[] = {
29 MIB_DESC(1, 0x00, "TxDrop"),
30 MIB_DESC(1, 0x04, "TxCrcErr"),
31 MIB_DESC(1, 0x08, "TxUnicast"),
32 MIB_DESC(1, 0x0c, "TxMulticast"),
33 MIB_DESC(1, 0x10, "TxBroadcast"),
34 MIB_DESC(1, 0x14, "TxCollision"),
35 MIB_DESC(1, 0x18, "TxSingleCollision"),
36 MIB_DESC(1, 0x1c, "TxMultipleCollision"),
37 MIB_DESC(1, 0x20, "TxDeferred"),
38 MIB_DESC(1, 0x24, "TxLateCollision"),
39 MIB_DESC(1, 0x28, "TxExcessiveCollistion"),
40 MIB_DESC(1, 0x2c, "TxPause"),
41 MIB_DESC(1, 0x30, "TxPktSz64"),
42 MIB_DESC(1, 0x34, "TxPktSz65To127"),
43 MIB_DESC(1, 0x38, "TxPktSz128To255"),
44 MIB_DESC(1, 0x3c, "TxPktSz256To511"),
45 MIB_DESC(1, 0x40, "TxPktSz512To1023"),
46 MIB_DESC(1, 0x44, "Tx1024ToMax"),
47 MIB_DESC(2, 0x48, "TxBytes"),
48 MIB_DESC(1, 0x60, "RxDrop"),
49 MIB_DESC(1, 0x64, "RxFiltering"),
50 MIB_DESC(1, 0x68, "RxUnicast"),
51 MIB_DESC(1, 0x6c, "RxMulticast"),
52 MIB_DESC(1, 0x70, "RxBroadcast"),
53 MIB_DESC(1, 0x74, "RxAlignErr"),
54 MIB_DESC(1, 0x78, "RxCrcErr"),
55 MIB_DESC(1, 0x7c, "RxUnderSizeErr"),
56 MIB_DESC(1, 0x80, "RxFragErr"),
57 MIB_DESC(1, 0x84, "RxOverSzErr"),
58 MIB_DESC(1, 0x88, "RxJabberErr"),
59 MIB_DESC(1, 0x8c, "RxPause"),
60 MIB_DESC(1, 0x90, "RxPktSz64"),
61 MIB_DESC(1, 0x94, "RxPktSz65To127"),
62 MIB_DESC(1, 0x98, "RxPktSz128To255"),
63 MIB_DESC(1, 0x9c, "RxPktSz256To511"),
64 MIB_DESC(1, 0xa0, "RxPktSz512To1023"),
65 MIB_DESC(1, 0xa4, "RxPktSz1024ToMax"),
66 MIB_DESC(2, 0xa8, "RxBytes"),
67 MIB_DESC(1, 0xb0, "RxCtrlDrop"),
68 MIB_DESC(1, 0xb4, "RxIngressDrop"),
69 MIB_DESC(1, 0xb8, "RxArlDrop"),
72 /* Since phy_device has not yet been created and
73 * phy_{read,write}_mmd_indirect is not available, we provide our own
74 * core_{read,write}_mmd_indirect with core_{clear,write,set} wrappers
75 * to complete this function.
78 core_read_mmd_indirect(struct mt7530_priv *priv, int prtad, int devad)
80 struct mii_bus *bus = priv->bus;
83 /* Write the desired MMD Devad */
84 ret = bus->write(bus, 0, MII_MMD_CTRL, devad);
88 /* Write the desired MMD register address */
89 ret = bus->write(bus, 0, MII_MMD_DATA, prtad);
93 /* Select the Function : DATA with no post increment */
94 ret = bus->write(bus, 0, MII_MMD_CTRL, (devad | MII_MMD_CTRL_NOINCR));
98 /* Read the content of the MMD's selected register */
99 value = bus->read(bus, 0, MII_MMD_DATA);
103 dev_err(&bus->dev, "failed to read mmd register\n");
109 core_write_mmd_indirect(struct mt7530_priv *priv, int prtad,
112 struct mii_bus *bus = priv->bus;
115 /* Write the desired MMD Devad */
116 ret = bus->write(bus, 0, MII_MMD_CTRL, devad);
120 /* Write the desired MMD register address */
121 ret = bus->write(bus, 0, MII_MMD_DATA, prtad);
125 /* Select the Function : DATA with no post increment */
126 ret = bus->write(bus, 0, MII_MMD_CTRL, (devad | MII_MMD_CTRL_NOINCR));
130 /* Write the data into MMD's selected register */
131 ret = bus->write(bus, 0, MII_MMD_DATA, data);
135 "failed to write mmd register\n");
140 core_write(struct mt7530_priv *priv, u32 reg, u32 val)
142 struct mii_bus *bus = priv->bus;
144 mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED);
146 core_write_mmd_indirect(priv, reg, MDIO_MMD_VEND2, val);
148 mutex_unlock(&bus->mdio_lock);
152 core_rmw(struct mt7530_priv *priv, u32 reg, u32 mask, u32 set)
154 struct mii_bus *bus = priv->bus;
157 mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED);
159 val = core_read_mmd_indirect(priv, reg, MDIO_MMD_VEND2);
162 core_write_mmd_indirect(priv, reg, MDIO_MMD_VEND2, val);
164 mutex_unlock(&bus->mdio_lock);
168 core_set(struct mt7530_priv *priv, u32 reg, u32 val)
170 core_rmw(priv, reg, 0, val);
174 core_clear(struct mt7530_priv *priv, u32 reg, u32 val)
176 core_rmw(priv, reg, val, 0);
180 mt7530_mii_write(struct mt7530_priv *priv, u32 reg, u32 val)
182 struct mii_bus *bus = priv->bus;
186 page = (reg >> 6) & 0x3ff;
187 r = (reg >> 2) & 0xf;
191 /* MT7530 uses 31 as the pseudo port */
192 ret = bus->write(bus, 0x1f, 0x1f, page);
196 ret = bus->write(bus, 0x1f, r, lo);
200 ret = bus->write(bus, 0x1f, 0x10, hi);
204 "failed to write mt7530 register\n");
209 mt7530_mii_read(struct mt7530_priv *priv, u32 reg)
211 struct mii_bus *bus = priv->bus;
215 page = (reg >> 6) & 0x3ff;
216 r = (reg >> 2) & 0xf;
218 /* MT7530 uses 31 as the pseudo port */
219 ret = bus->write(bus, 0x1f, 0x1f, page);
222 "failed to read mt7530 register\n");
226 lo = bus->read(bus, 0x1f, r);
227 hi = bus->read(bus, 0x1f, 0x10);
229 return (hi << 16) | (lo & 0xffff);
233 mt7530_write(struct mt7530_priv *priv, u32 reg, u32 val)
235 struct mii_bus *bus = priv->bus;
237 mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED);
239 mt7530_mii_write(priv, reg, val);
241 mutex_unlock(&bus->mdio_lock);
245 _mt7530_unlocked_read(struct mt7530_dummy_poll *p)
247 return mt7530_mii_read(p->priv, p->reg);
251 _mt7530_read(struct mt7530_dummy_poll *p)
253 struct mii_bus *bus = p->priv->bus;
256 mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED);
258 val = mt7530_mii_read(p->priv, p->reg);
260 mutex_unlock(&bus->mdio_lock);
266 mt7530_read(struct mt7530_priv *priv, u32 reg)
268 struct mt7530_dummy_poll p;
270 INIT_MT7530_DUMMY_POLL(&p, priv, reg);
271 return _mt7530_read(&p);
275 mt7530_rmw(struct mt7530_priv *priv, u32 reg,
278 struct mii_bus *bus = priv->bus;
281 mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED);
283 val = mt7530_mii_read(priv, reg);
286 mt7530_mii_write(priv, reg, val);
288 mutex_unlock(&bus->mdio_lock);
292 mt7530_set(struct mt7530_priv *priv, u32 reg, u32 val)
294 mt7530_rmw(priv, reg, 0, val);
298 mt7530_clear(struct mt7530_priv *priv, u32 reg, u32 val)
300 mt7530_rmw(priv, reg, val, 0);
304 mt7530_fdb_cmd(struct mt7530_priv *priv, enum mt7530_fdb_cmd cmd, u32 *rsp)
308 struct mt7530_dummy_poll p;
310 /* Set the command operating upon the MAC address entries */
311 val = ATC_BUSY | ATC_MAT(0) | cmd;
312 mt7530_write(priv, MT7530_ATC, val);
314 INIT_MT7530_DUMMY_POLL(&p, priv, MT7530_ATC);
315 ret = readx_poll_timeout(_mt7530_read, &p, val,
316 !(val & ATC_BUSY), 20, 20000);
318 dev_err(priv->dev, "reset timeout\n");
322 /* Additional sanity for read command if the specified
325 val = mt7530_read(priv, MT7530_ATC);
326 if ((cmd == MT7530_FDB_READ) && (val & ATC_INVALID))
336 mt7530_fdb_read(struct mt7530_priv *priv, struct mt7530_fdb *fdb)
341 /* Read from ARL table into an array */
342 for (i = 0; i < 3; i++) {
343 reg[i] = mt7530_read(priv, MT7530_TSRA1 + (i * 4));
345 dev_dbg(priv->dev, "%s(%d) reg[%d]=0x%x\n",
346 __func__, __LINE__, i, reg[i]);
349 fdb->vid = (reg[1] >> CVID) & CVID_MASK;
350 fdb->aging = (reg[2] >> AGE_TIMER) & AGE_TIMER_MASK;
351 fdb->port_mask = (reg[2] >> PORT_MAP) & PORT_MAP_MASK;
352 fdb->mac[0] = (reg[0] >> MAC_BYTE_0) & MAC_BYTE_MASK;
353 fdb->mac[1] = (reg[0] >> MAC_BYTE_1) & MAC_BYTE_MASK;
354 fdb->mac[2] = (reg[0] >> MAC_BYTE_2) & MAC_BYTE_MASK;
355 fdb->mac[3] = (reg[0] >> MAC_BYTE_3) & MAC_BYTE_MASK;
356 fdb->mac[4] = (reg[1] >> MAC_BYTE_4) & MAC_BYTE_MASK;
357 fdb->mac[5] = (reg[1] >> MAC_BYTE_5) & MAC_BYTE_MASK;
358 fdb->noarp = ((reg[2] >> ENT_STATUS) & ENT_STATUS_MASK) == STATIC_ENT;
362 mt7530_fdb_write(struct mt7530_priv *priv, u16 vid,
363 u8 port_mask, const u8 *mac,
369 reg[1] |= vid & CVID_MASK;
372 reg[2] |= (aging & AGE_TIMER_MASK) << AGE_TIMER;
373 reg[2] |= (port_mask & PORT_MAP_MASK) << PORT_MAP;
374 /* STATIC_ENT indicate that entry is static wouldn't
375 * be aged out and STATIC_EMP specified as erasing an
378 reg[2] |= (type & ENT_STATUS_MASK) << ENT_STATUS;
379 reg[1] |= mac[5] << MAC_BYTE_5;
380 reg[1] |= mac[4] << MAC_BYTE_4;
381 reg[0] |= mac[3] << MAC_BYTE_3;
382 reg[0] |= mac[2] << MAC_BYTE_2;
383 reg[0] |= mac[1] << MAC_BYTE_1;
384 reg[0] |= mac[0] << MAC_BYTE_0;
386 /* Write array into the ARL table */
387 for (i = 0; i < 3; i++)
388 mt7530_write(priv, MT7530_ATA1 + (i * 4), reg[i]);
391 /* Setup TX circuit including relevant PAD and driving */
393 mt7530_pad_clk_setup(struct dsa_switch *ds, phy_interface_t interface)
395 struct mt7530_priv *priv = ds->priv;
396 u32 ncpo1, ssc_delta, trgint, i, xtal;
398 xtal = mt7530_read(priv, MT7530_MHWTRAP) & HWTRAP_XTAL_MASK;
400 if (xtal == HWTRAP_XTAL_20MHZ) {
402 "%s: MT7530 with a 20MHz XTAL is not supported!\n",
408 case PHY_INTERFACE_MODE_RGMII:
410 /* PLL frequency: 125MHz */
413 case PHY_INTERFACE_MODE_TRGMII:
415 if (priv->id == ID_MT7621) {
416 /* PLL frequency: 150MHz: 1.2GBit */
417 if (xtal == HWTRAP_XTAL_40MHZ)
419 if (xtal == HWTRAP_XTAL_25MHZ)
421 } else { /* PLL frequency: 250MHz: 2.0Gbit */
422 if (xtal == HWTRAP_XTAL_40MHZ)
424 if (xtal == HWTRAP_XTAL_25MHZ)
429 dev_err(priv->dev, "xMII interface %d not supported\n",
434 if (xtal == HWTRAP_XTAL_25MHZ)
439 mt7530_rmw(priv, MT7530_P6ECR, P6_INTF_MODE_MASK,
440 P6_INTF_MODE(trgint));
442 /* Lower Tx Driving for TRGMII path */
443 for (i = 0 ; i < NUM_TRGMII_CTRL ; i++)
444 mt7530_write(priv, MT7530_TRGMII_TD_ODT(i),
445 TD_DM_DRVP(8) | TD_DM_DRVN(8));
447 /* Disable MT7530 core and TRGMII Tx clocks */
448 core_clear(priv, CORE_TRGMII_GSW_CLK_CG,
449 REG_GSWCK_EN | REG_TRGMIICK_EN);
451 /* Setup core clock for MT7530 */
453 core_write(priv, CORE_GSWPLL_GRP1, 0);
455 /* Set core clock into 500Mhz */
456 core_write(priv, CORE_GSWPLL_GRP2,
457 RG_GSWPLL_POSDIV_500M(1) |
458 RG_GSWPLL_FBKDIV_500M(25));
461 core_write(priv, CORE_GSWPLL_GRP1,
463 RG_GSWPLL_POSDIV_200M(2) |
464 RG_GSWPLL_FBKDIV_200M(32));
466 /* Setup the MT7530 TRGMII Tx Clock */
467 core_write(priv, CORE_PLL_GROUP5, RG_LCDDS_PCW_NCPO1(ncpo1));
468 core_write(priv, CORE_PLL_GROUP6, RG_LCDDS_PCW_NCPO0(0));
469 core_write(priv, CORE_PLL_GROUP10, RG_LCDDS_SSC_DELTA(ssc_delta));
470 core_write(priv, CORE_PLL_GROUP11, RG_LCDDS_SSC_DELTA1(ssc_delta));
471 core_write(priv, CORE_PLL_GROUP4,
472 RG_SYSPLL_DDSFBK_EN | RG_SYSPLL_BIAS_EN |
473 RG_SYSPLL_BIAS_LPF_EN);
474 core_write(priv, CORE_PLL_GROUP2,
475 RG_SYSPLL_EN_NORMAL | RG_SYSPLL_VODEN |
476 RG_SYSPLL_POSDIV(1));
477 core_write(priv, CORE_PLL_GROUP7,
478 RG_LCDDS_PCW_NCPO_CHG | RG_LCCDS_C(3) |
479 RG_LCDDS_PWDB | RG_LCDDS_ISO_EN);
481 /* Enable MT7530 core and TRGMII Tx clocks */
482 core_set(priv, CORE_TRGMII_GSW_CLK_CG,
483 REG_GSWCK_EN | REG_TRGMIICK_EN);
486 for (i = 0 ; i < NUM_TRGMII_CTRL; i++)
487 mt7530_rmw(priv, MT7530_TRGMII_RD(i),
488 RD_TAP_MASK, RD_TAP(16));
492 static bool mt7531_dual_sgmii_supported(struct mt7530_priv *priv)
496 val = mt7530_read(priv, MT7531_TOP_SIG_SR);
498 return (val & PAD_DUAL_SGMII_EN) != 0;
502 mt7531_pad_setup(struct dsa_switch *ds, phy_interface_t interface)
504 struct mt7530_priv *priv = ds->priv;
510 if (mt7531_dual_sgmii_supported(priv))
513 val = mt7530_read(priv, MT7531_CREV);
514 top_sig = mt7530_read(priv, MT7531_TOP_SIG_SR);
515 hwstrap = mt7530_read(priv, MT7531_HWTRAP);
516 if ((val & CHIP_REV_M) > 0)
517 xtal = (top_sig & PAD_MCM_SMI_EN) ? HWTRAP_XTAL_FSEL_40MHZ :
518 HWTRAP_XTAL_FSEL_25MHZ;
520 xtal = hwstrap & HWTRAP_XTAL_FSEL_MASK;
522 /* Step 1 : Disable MT7531 COREPLL */
523 val = mt7530_read(priv, MT7531_PLLGP_EN);
525 mt7530_write(priv, MT7531_PLLGP_EN, val);
527 /* Step 2: switch to XTAL output */
528 val = mt7530_read(priv, MT7531_PLLGP_EN);
530 mt7530_write(priv, MT7531_PLLGP_EN, val);
532 val = mt7530_read(priv, MT7531_PLLGP_CR0);
533 val &= ~RG_COREPLL_EN;
534 mt7530_write(priv, MT7531_PLLGP_CR0, val);
536 /* Step 3: disable PLLGP and enable program PLLGP */
537 val = mt7530_read(priv, MT7531_PLLGP_EN);
539 mt7530_write(priv, MT7531_PLLGP_EN, val);
541 /* Step 4: program COREPLL output frequency to 500MHz */
542 val = mt7530_read(priv, MT7531_PLLGP_CR0);
543 val &= ~RG_COREPLL_POSDIV_M;
544 val |= 2 << RG_COREPLL_POSDIV_S;
545 mt7530_write(priv, MT7531_PLLGP_CR0, val);
546 usleep_range(25, 35);
549 case HWTRAP_XTAL_FSEL_25MHZ:
550 val = mt7530_read(priv, MT7531_PLLGP_CR0);
551 val &= ~RG_COREPLL_SDM_PCW_M;
552 val |= 0x140000 << RG_COREPLL_SDM_PCW_S;
553 mt7530_write(priv, MT7531_PLLGP_CR0, val);
555 case HWTRAP_XTAL_FSEL_40MHZ:
556 val = mt7530_read(priv, MT7531_PLLGP_CR0);
557 val &= ~RG_COREPLL_SDM_PCW_M;
558 val |= 0x190000 << RG_COREPLL_SDM_PCW_S;
559 mt7530_write(priv, MT7531_PLLGP_CR0, val);
563 /* Set feedback divide ratio update signal to high */
564 val = mt7530_read(priv, MT7531_PLLGP_CR0);
565 val |= RG_COREPLL_SDM_PCW_CHG;
566 mt7530_write(priv, MT7531_PLLGP_CR0, val);
567 /* Wait for at least 16 XTAL clocks */
568 usleep_range(10, 20);
570 /* Step 5: set feedback divide ratio update signal to low */
571 val = mt7530_read(priv, MT7531_PLLGP_CR0);
572 val &= ~RG_COREPLL_SDM_PCW_CHG;
573 mt7530_write(priv, MT7531_PLLGP_CR0, val);
575 /* Enable 325M clock for SGMII */
576 mt7530_write(priv, MT7531_ANA_PLLGP_CR5, 0xad0000);
578 /* Enable 250SSC clock for RGMII */
579 mt7530_write(priv, MT7531_ANA_PLLGP_CR2, 0x4f40000);
581 /* Step 6: Enable MT7531 PLL */
582 val = mt7530_read(priv, MT7531_PLLGP_CR0);
583 val |= RG_COREPLL_EN;
584 mt7530_write(priv, MT7531_PLLGP_CR0, val);
586 val = mt7530_read(priv, MT7531_PLLGP_EN);
588 mt7530_write(priv, MT7531_PLLGP_EN, val);
589 usleep_range(25, 35);
595 mt7530_mib_reset(struct dsa_switch *ds)
597 struct mt7530_priv *priv = ds->priv;
599 mt7530_write(priv, MT7530_MIB_CCR, CCR_MIB_FLUSH);
600 mt7530_write(priv, MT7530_MIB_CCR, CCR_MIB_ACTIVATE);
603 static int mt7530_phy_read(struct mt7530_priv *priv, int port, int regnum)
605 return mdiobus_read_nested(priv->bus, port, regnum);
608 static int mt7530_phy_write(struct mt7530_priv *priv, int port, int regnum,
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 mt7530_priv *priv, int port, int regnum)
793 if (regnum & MII_ADDR_C45) {
794 devad = (regnum >> MII_DEVADDR_C45_SHIFT) & 0x1f;
795 ret = mt7531_ind_c45_phy_read(priv, port, devad,
796 regnum & MII_REGADDR_C45_MASK);
798 ret = mt7531_ind_c22_phy_read(priv, port, regnum);
805 mt7531_ind_phy_write(struct mt7530_priv *priv, int port, int regnum,
811 if (regnum & MII_ADDR_C45) {
812 devad = (regnum >> MII_DEVADDR_C45_SHIFT) & 0x1f;
813 ret = mt7531_ind_c45_phy_write(priv, port, devad,
814 regnum & MII_REGADDR_C45_MASK,
817 ret = mt7531_ind_c22_phy_write(priv, port, regnum, data);
824 mt753x_phy_read(struct mii_bus *bus, int port, int regnum)
826 struct mt7530_priv *priv = bus->priv;
828 return priv->info->phy_read(priv, port, regnum);
832 mt753x_phy_write(struct mii_bus *bus, int port, int regnum, u16 val)
834 struct mt7530_priv *priv = bus->priv;
836 return priv->info->phy_write(priv, port, regnum, val);
840 mt7530_get_strings(struct dsa_switch *ds, int port, u32 stringset,
845 if (stringset != ETH_SS_STATS)
848 for (i = 0; i < ARRAY_SIZE(mt7530_mib); i++)
849 strncpy(data + i * ETH_GSTRING_LEN, mt7530_mib[i].name,
854 mt7530_get_ethtool_stats(struct dsa_switch *ds, int port,
857 struct mt7530_priv *priv = ds->priv;
858 const struct mt7530_mib_desc *mib;
862 for (i = 0; i < ARRAY_SIZE(mt7530_mib); i++) {
863 mib = &mt7530_mib[i];
864 reg = MT7530_PORT_MIB_COUNTER(port) + mib->offset;
866 data[i] = mt7530_read(priv, reg);
867 if (mib->size == 2) {
868 hi = mt7530_read(priv, reg + 4);
875 mt7530_get_sset_count(struct dsa_switch *ds, int port, int sset)
877 if (sset != ETH_SS_STATS)
880 return ARRAY_SIZE(mt7530_mib);
884 mt7530_set_ageing_time(struct dsa_switch *ds, unsigned int msecs)
886 struct mt7530_priv *priv = ds->priv;
887 unsigned int secs = msecs / 1000;
888 unsigned int tmp_age_count;
889 unsigned int error = -1;
890 unsigned int age_count;
891 unsigned int age_unit;
893 /* Applied timer is (AGE_CNT + 1) * (AGE_UNIT + 1) seconds */
894 if (secs < 1 || secs > (AGE_CNT_MAX + 1) * (AGE_UNIT_MAX + 1))
897 /* iterate through all possible age_count to find the closest pair */
898 for (tmp_age_count = 0; tmp_age_count <= AGE_CNT_MAX; ++tmp_age_count) {
899 unsigned int tmp_age_unit = secs / (tmp_age_count + 1) - 1;
901 if (tmp_age_unit <= AGE_UNIT_MAX) {
902 unsigned int tmp_error = secs -
903 (tmp_age_count + 1) * (tmp_age_unit + 1);
905 /* found a closer pair */
906 if (error > tmp_error) {
908 age_count = tmp_age_count;
909 age_unit = tmp_age_unit;
912 /* found the exact match, so break the loop */
918 mt7530_write(priv, MT7530_AAC, AGE_CNT(age_count) | AGE_UNIT(age_unit));
923 static void mt7530_setup_port5(struct dsa_switch *ds, phy_interface_t interface)
925 struct mt7530_priv *priv = ds->priv;
929 mutex_lock(&priv->reg_mutex);
931 val = mt7530_read(priv, MT7530_MHWTRAP);
933 val |= MHWTRAP_MANUAL | MHWTRAP_P5_MAC_SEL | MHWTRAP_P5_DIS;
934 val &= ~MHWTRAP_P5_RGMII_MODE & ~MHWTRAP_PHY0_SEL;
936 switch (priv->p5_intf_sel) {
937 case P5_INTF_SEL_PHY_P0:
938 /* MT7530_P5_MODE_GPHY_P0: 2nd GMAC -> P5 -> P0 */
939 val |= MHWTRAP_PHY0_SEL;
941 case P5_INTF_SEL_PHY_P4:
942 /* MT7530_P5_MODE_GPHY_P4: 2nd GMAC -> P5 -> P4 */
943 val &= ~MHWTRAP_P5_MAC_SEL & ~MHWTRAP_P5_DIS;
945 /* Setup the MAC by default for the cpu port */
946 mt7530_write(priv, MT7530_PMCR_P(5), 0x56300);
948 case P5_INTF_SEL_GMAC5:
949 /* MT7530_P5_MODE_GMAC: P5 -> External phy or 2nd GMAC */
950 val &= ~MHWTRAP_P5_DIS;
953 interface = PHY_INTERFACE_MODE_NA;
956 dev_err(ds->dev, "Unsupported p5_intf_sel %d\n",
961 /* Setup RGMII settings */
962 if (phy_interface_mode_is_rgmii(interface)) {
963 val |= MHWTRAP_P5_RGMII_MODE;
965 /* P5 RGMII RX Clock Control: delay setting for 1000M */
966 mt7530_write(priv, MT7530_P5RGMIIRXCR, CSR_RGMII_EDGE_ALIGN);
968 /* Don't set delay in DSA mode */
969 if (!dsa_is_dsa_port(priv->ds, 5) &&
970 (interface == PHY_INTERFACE_MODE_RGMII_TXID ||
971 interface == PHY_INTERFACE_MODE_RGMII_ID))
972 tx_delay = 4; /* n * 0.5 ns */
974 /* P5 RGMII TX Clock Control: delay x */
975 mt7530_write(priv, MT7530_P5RGMIITXCR,
976 CSR_RGMII_TXC_CFG(0x10 + tx_delay));
978 /* reduce P5 RGMII Tx driving, 8mA */
979 mt7530_write(priv, MT7530_IO_DRV_CR,
980 P5_IO_CLK_DRV(1) | P5_IO_DATA_DRV(1));
983 mt7530_write(priv, MT7530_MHWTRAP, val);
985 dev_dbg(ds->dev, "Setup P5, HWTRAP=0x%x, intf_sel=%s, phy-mode=%s\n",
986 val, p5_intf_modes(priv->p5_intf_sel), phy_modes(interface));
988 priv->p5_interface = interface;
991 mutex_unlock(&priv->reg_mutex);
995 mt753x_cpu_port_enable(struct dsa_switch *ds, int port)
997 struct mt7530_priv *priv = ds->priv;
1000 /* Setup max capability of CPU port at first */
1001 if (priv->info->cpu_port_config) {
1002 ret = priv->info->cpu_port_config(ds, port);
1007 /* Enable Mediatek header mode on the cpu port */
1008 mt7530_write(priv, MT7530_PVC_P(port),
1011 /* Disable flooding by default */
1012 mt7530_rmw(priv, MT7530_MFC, BC_FFP_MASK | UNM_FFP_MASK | UNU_FFP_MASK,
1013 BC_FFP(BIT(port)) | UNM_FFP(BIT(port)) | UNU_FFP(BIT(port)));
1015 /* Set CPU port number */
1016 if (priv->id == ID_MT7621)
1017 mt7530_rmw(priv, MT7530_MFC, CPU_MASK, CPU_EN | CPU_PORT(port));
1019 /* CPU port gets connected to all user ports of
1022 mt7530_write(priv, MT7530_PCR_P(port),
1023 PCR_MATRIX(dsa_user_ports(priv->ds)));
1029 mt7530_port_enable(struct dsa_switch *ds, int port,
1030 struct phy_device *phy)
1032 struct mt7530_priv *priv = ds->priv;
1034 if (!dsa_is_user_port(ds, port))
1037 mutex_lock(&priv->reg_mutex);
1039 /* Allow the user port gets connected to the cpu port and also
1040 * restore the port matrix if the port is the member of a certain
1043 priv->ports[port].pm |= PCR_MATRIX(BIT(MT7530_CPU_PORT));
1044 priv->ports[port].enable = true;
1045 mt7530_rmw(priv, MT7530_PCR_P(port), PCR_MATRIX_MASK,
1046 priv->ports[port].pm);
1047 mt7530_clear(priv, MT7530_PMCR_P(port), PMCR_LINK_SETTINGS_MASK);
1049 mutex_unlock(&priv->reg_mutex);
1055 mt7530_port_disable(struct dsa_switch *ds, int port)
1057 struct mt7530_priv *priv = ds->priv;
1059 if (!dsa_is_user_port(ds, port))
1062 mutex_lock(&priv->reg_mutex);
1064 /* Clear up all port matrix which could be restored in the next
1065 * enablement for the port.
1067 priv->ports[port].enable = false;
1068 mt7530_rmw(priv, MT7530_PCR_P(port), PCR_MATRIX_MASK,
1070 mt7530_clear(priv, MT7530_PMCR_P(port), PMCR_LINK_SETTINGS_MASK);
1072 mutex_unlock(&priv->reg_mutex);
1076 mt7530_port_change_mtu(struct dsa_switch *ds, int port, int new_mtu)
1078 struct mt7530_priv *priv = ds->priv;
1079 struct mii_bus *bus = priv->bus;
1083 /* When a new MTU is set, DSA always set the CPU port's MTU to the
1084 * largest MTU of the slave ports. Because the switch only has a global
1085 * RX length register, only allowing CPU port here is enough.
1087 if (!dsa_is_cpu_port(ds, port))
1090 mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED);
1092 val = mt7530_mii_read(priv, MT7530_GMACCR);
1093 val &= ~MAX_RX_PKT_LEN_MASK;
1095 /* RX length also includes Ethernet header, MTK tag, and FCS length */
1096 length = new_mtu + ETH_HLEN + MTK_HDR_LEN + ETH_FCS_LEN;
1097 if (length <= 1522) {
1098 val |= MAX_RX_PKT_LEN_1522;
1099 } else if (length <= 1536) {
1100 val |= MAX_RX_PKT_LEN_1536;
1101 } else if (length <= 1552) {
1102 val |= MAX_RX_PKT_LEN_1552;
1104 val &= ~MAX_RX_JUMBO_MASK;
1105 val |= MAX_RX_JUMBO(DIV_ROUND_UP(length, 1024));
1106 val |= MAX_RX_PKT_LEN_JUMBO;
1109 mt7530_mii_write(priv, MT7530_GMACCR, val);
1111 mutex_unlock(&bus->mdio_lock);
1117 mt7530_port_max_mtu(struct dsa_switch *ds, int port)
1119 return MT7530_MAX_MTU;
1123 mt7530_stp_state_set(struct dsa_switch *ds, int port, u8 state)
1125 struct mt7530_priv *priv = ds->priv;
1129 case BR_STATE_DISABLED:
1130 stp_state = MT7530_STP_DISABLED;
1132 case BR_STATE_BLOCKING:
1133 stp_state = MT7530_STP_BLOCKING;
1135 case BR_STATE_LISTENING:
1136 stp_state = MT7530_STP_LISTENING;
1138 case BR_STATE_LEARNING:
1139 stp_state = MT7530_STP_LEARNING;
1141 case BR_STATE_FORWARDING:
1143 stp_state = MT7530_STP_FORWARDING;
1147 mt7530_rmw(priv, MT7530_SSP_P(port), FID_PST_MASK, stp_state);
1151 mt7530_port_pre_bridge_flags(struct dsa_switch *ds, int port,
1152 struct switchdev_brport_flags flags,
1153 struct netlink_ext_ack *extack)
1155 if (flags.mask & ~(BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD |
1163 mt7530_port_bridge_flags(struct dsa_switch *ds, int port,
1164 struct switchdev_brport_flags flags,
1165 struct netlink_ext_ack *extack)
1167 struct mt7530_priv *priv = ds->priv;
1169 if (flags.mask & BR_LEARNING)
1170 mt7530_rmw(priv, MT7530_PSC_P(port), SA_DIS,
1171 flags.val & BR_LEARNING ? 0 : SA_DIS);
1173 if (flags.mask & BR_FLOOD)
1174 mt7530_rmw(priv, MT7530_MFC, UNU_FFP(BIT(port)),
1175 flags.val & BR_FLOOD ? UNU_FFP(BIT(port)) : 0);
1177 if (flags.mask & BR_MCAST_FLOOD)
1178 mt7530_rmw(priv, MT7530_MFC, UNM_FFP(BIT(port)),
1179 flags.val & BR_MCAST_FLOOD ? UNM_FFP(BIT(port)) : 0);
1181 if (flags.mask & BR_BCAST_FLOOD)
1182 mt7530_rmw(priv, MT7530_MFC, BC_FFP(BIT(port)),
1183 flags.val & BR_BCAST_FLOOD ? BC_FFP(BIT(port)) : 0);
1189 mt7530_port_set_mrouter(struct dsa_switch *ds, int port, bool mrouter,
1190 struct netlink_ext_ack *extack)
1192 struct mt7530_priv *priv = ds->priv;
1194 mt7530_rmw(priv, MT7530_MFC, UNM_FFP(BIT(port)),
1195 mrouter ? UNM_FFP(BIT(port)) : 0);
1201 mt7530_port_bridge_join(struct dsa_switch *ds, int port,
1202 struct net_device *bridge)
1204 struct mt7530_priv *priv = ds->priv;
1205 u32 port_bitmap = BIT(MT7530_CPU_PORT);
1208 mutex_lock(&priv->reg_mutex);
1210 for (i = 0; i < MT7530_NUM_PORTS; i++) {
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_is_user_port(ds, i) && i != port) {
1216 if (dsa_to_port(ds, i)->bridge_dev != bridge)
1218 if (priv->ports[i].enable)
1219 mt7530_set(priv, MT7530_PCR_P(i),
1220 PCR_MATRIX(BIT(port)));
1221 priv->ports[i].pm |= PCR_MATRIX(BIT(port));
1223 port_bitmap |= BIT(i);
1227 /* Add the all other ports to this port matrix. */
1228 if (priv->ports[port].enable)
1229 mt7530_rmw(priv, MT7530_PCR_P(port),
1230 PCR_MATRIX_MASK, PCR_MATRIX(port_bitmap));
1231 priv->ports[port].pm |= PCR_MATRIX(port_bitmap);
1233 mutex_unlock(&priv->reg_mutex);
1239 mt7530_port_set_vlan_unaware(struct dsa_switch *ds, int port)
1241 struct mt7530_priv *priv = ds->priv;
1242 bool all_user_ports_removed = true;
1245 /* When a port is removed from the bridge, the port would be set up
1246 * back to the default as is at initial boot which is a VLAN-unaware
1249 mt7530_rmw(priv, MT7530_PCR_P(port), PCR_PORT_VLAN_MASK,
1250 MT7530_PORT_MATRIX_MODE);
1251 mt7530_rmw(priv, MT7530_PVC_P(port), VLAN_ATTR_MASK | PVC_EG_TAG_MASK,
1252 VLAN_ATTR(MT7530_VLAN_TRANSPARENT) |
1253 PVC_EG_TAG(MT7530_VLAN_EG_CONSISTENT));
1255 for (i = 0; i < MT7530_NUM_PORTS; i++) {
1256 if (dsa_is_user_port(ds, i) &&
1257 dsa_port_is_vlan_filtering(dsa_to_port(ds, i))) {
1258 all_user_ports_removed = false;
1263 /* CPU port also does the same thing until all user ports belonging to
1264 * the CPU port get out of VLAN filtering mode.
1266 if (all_user_ports_removed) {
1267 mt7530_write(priv, MT7530_PCR_P(MT7530_CPU_PORT),
1268 PCR_MATRIX(dsa_user_ports(priv->ds)));
1269 mt7530_write(priv, MT7530_PVC_P(MT7530_CPU_PORT), PORT_SPEC_TAG
1270 | PVC_EG_TAG(MT7530_VLAN_EG_CONSISTENT));
1275 mt7530_port_set_vlan_aware(struct dsa_switch *ds, int port)
1277 struct mt7530_priv *priv = ds->priv;
1279 /* Trapped into security mode allows packet forwarding through VLAN
1280 * table lookup. CPU port is set to fallback mode to let untagged
1281 * frames pass through.
1283 if (dsa_is_cpu_port(ds, port))
1284 mt7530_rmw(priv, MT7530_PCR_P(port), PCR_PORT_VLAN_MASK,
1285 MT7530_PORT_FALLBACK_MODE);
1287 mt7530_rmw(priv, MT7530_PCR_P(port), PCR_PORT_VLAN_MASK,
1288 MT7530_PORT_SECURITY_MODE);
1290 /* Set the port as a user port which is to be able to recognize VID
1291 * from incoming packets before fetching entry within the VLAN table.
1293 mt7530_rmw(priv, MT7530_PVC_P(port), VLAN_ATTR_MASK | PVC_EG_TAG_MASK,
1294 VLAN_ATTR(MT7530_VLAN_USER) |
1295 PVC_EG_TAG(MT7530_VLAN_EG_DISABLED));
1299 mt7530_port_bridge_leave(struct dsa_switch *ds, int port,
1300 struct net_device *bridge)
1302 struct mt7530_priv *priv = ds->priv;
1305 mutex_lock(&priv->reg_mutex);
1307 for (i = 0; i < MT7530_NUM_PORTS; i++) {
1308 /* Remove this port from the port matrix of the other ports
1309 * in the same bridge. If the port is disabled, port matrix
1310 * is kept and not being setup until the port becomes enabled.
1311 * And the other port's port matrix cannot be broken when the
1312 * other port is still a VLAN-aware port.
1314 if (dsa_is_user_port(ds, i) && i != port &&
1315 !dsa_port_is_vlan_filtering(dsa_to_port(ds, i))) {
1316 if (dsa_to_port(ds, i)->bridge_dev != bridge)
1318 if (priv->ports[i].enable)
1319 mt7530_clear(priv, MT7530_PCR_P(i),
1320 PCR_MATRIX(BIT(port)));
1321 priv->ports[i].pm &= ~PCR_MATRIX(BIT(port));
1325 /* Set the cpu port to be the only one in the port matrix of
1328 if (priv->ports[port].enable)
1329 mt7530_rmw(priv, MT7530_PCR_P(port), PCR_MATRIX_MASK,
1330 PCR_MATRIX(BIT(MT7530_CPU_PORT)));
1331 priv->ports[port].pm = PCR_MATRIX(BIT(MT7530_CPU_PORT));
1333 mutex_unlock(&priv->reg_mutex);
1337 mt7530_port_fdb_add(struct dsa_switch *ds, int port,
1338 const unsigned char *addr, u16 vid)
1340 struct mt7530_priv *priv = ds->priv;
1342 u8 port_mask = BIT(port);
1344 mutex_lock(&priv->reg_mutex);
1345 mt7530_fdb_write(priv, vid, port_mask, addr, -1, STATIC_ENT);
1346 ret = mt7530_fdb_cmd(priv, MT7530_FDB_WRITE, NULL);
1347 mutex_unlock(&priv->reg_mutex);
1353 mt7530_port_fdb_del(struct dsa_switch *ds, int port,
1354 const unsigned char *addr, u16 vid)
1356 struct mt7530_priv *priv = ds->priv;
1358 u8 port_mask = BIT(port);
1360 mutex_lock(&priv->reg_mutex);
1361 mt7530_fdb_write(priv, vid, port_mask, addr, -1, STATIC_EMP);
1362 ret = mt7530_fdb_cmd(priv, MT7530_FDB_WRITE, NULL);
1363 mutex_unlock(&priv->reg_mutex);
1369 mt7530_port_fdb_dump(struct dsa_switch *ds, int port,
1370 dsa_fdb_dump_cb_t *cb, void *data)
1372 struct mt7530_priv *priv = ds->priv;
1373 struct mt7530_fdb _fdb = { 0 };
1374 int cnt = MT7530_NUM_FDB_RECORDS;
1378 mutex_lock(&priv->reg_mutex);
1380 ret = mt7530_fdb_cmd(priv, MT7530_FDB_START, &rsp);
1385 if (rsp & ATC_SRCH_HIT) {
1386 mt7530_fdb_read(priv, &_fdb);
1387 if (_fdb.port_mask & BIT(port)) {
1388 ret = cb(_fdb.mac, _fdb.vid, _fdb.noarp,
1395 !(rsp & ATC_SRCH_END) &&
1396 !mt7530_fdb_cmd(priv, MT7530_FDB_NEXT, &rsp));
1398 mutex_unlock(&priv->reg_mutex);
1404 mt7530_port_mdb_add(struct dsa_switch *ds, int port,
1405 const struct switchdev_obj_port_mdb *mdb)
1407 struct mt7530_priv *priv = ds->priv;
1408 const u8 *addr = mdb->addr;
1413 mutex_lock(&priv->reg_mutex);
1415 mt7530_fdb_write(priv, vid, 0, addr, 0, STATIC_EMP);
1416 if (!mt7530_fdb_cmd(priv, MT7530_FDB_READ, NULL))
1417 port_mask = (mt7530_read(priv, MT7530_ATRD) >> PORT_MAP)
1420 port_mask |= BIT(port);
1421 mt7530_fdb_write(priv, vid, port_mask, addr, -1, STATIC_ENT);
1422 ret = mt7530_fdb_cmd(priv, MT7530_FDB_WRITE, NULL);
1424 mutex_unlock(&priv->reg_mutex);
1430 mt7530_port_mdb_del(struct dsa_switch *ds, int port,
1431 const struct switchdev_obj_port_mdb *mdb)
1433 struct mt7530_priv *priv = ds->priv;
1434 const u8 *addr = mdb->addr;
1439 mutex_lock(&priv->reg_mutex);
1441 mt7530_fdb_write(priv, vid, 0, addr, 0, STATIC_EMP);
1442 if (!mt7530_fdb_cmd(priv, MT7530_FDB_READ, NULL))
1443 port_mask = (mt7530_read(priv, MT7530_ATRD) >> PORT_MAP)
1446 port_mask &= ~BIT(port);
1447 mt7530_fdb_write(priv, vid, port_mask, addr, -1,
1448 port_mask ? STATIC_ENT : STATIC_EMP);
1449 ret = mt7530_fdb_cmd(priv, MT7530_FDB_WRITE, NULL);
1451 mutex_unlock(&priv->reg_mutex);
1457 mt7530_vlan_cmd(struct mt7530_priv *priv, enum mt7530_vlan_cmd cmd, u16 vid)
1459 struct mt7530_dummy_poll p;
1463 val = VTCR_BUSY | VTCR_FUNC(cmd) | vid;
1464 mt7530_write(priv, MT7530_VTCR, val);
1466 INIT_MT7530_DUMMY_POLL(&p, priv, MT7530_VTCR);
1467 ret = readx_poll_timeout(_mt7530_read, &p, val,
1468 !(val & VTCR_BUSY), 20, 20000);
1470 dev_err(priv->dev, "poll timeout\n");
1474 val = mt7530_read(priv, MT7530_VTCR);
1475 if (val & VTCR_INVALID) {
1476 dev_err(priv->dev, "read VTCR invalid\n");
1484 mt7530_port_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering,
1485 struct netlink_ext_ack *extack)
1487 if (vlan_filtering) {
1488 /* The port is being kept as VLAN-unaware port when bridge is
1489 * set up with vlan_filtering not being set, Otherwise, the
1490 * port and the corresponding CPU port is required the setup
1491 * for becoming a VLAN-aware port.
1493 mt7530_port_set_vlan_aware(ds, port);
1494 mt7530_port_set_vlan_aware(ds, MT7530_CPU_PORT);
1496 mt7530_port_set_vlan_unaware(ds, port);
1503 mt7530_hw_vlan_add(struct mt7530_priv *priv,
1504 struct mt7530_hw_vlan_entry *entry)
1509 new_members = entry->old_members | BIT(entry->port) |
1510 BIT(MT7530_CPU_PORT);
1512 /* Validate the entry with independent learning, create egress tag per
1513 * VLAN and joining the port as one of the port members.
1515 val = IVL_MAC | VTAG_EN | PORT_MEM(new_members) | VLAN_VALID;
1516 mt7530_write(priv, MT7530_VAWD1, val);
1518 /* Decide whether adding tag or not for those outgoing packets from the
1519 * port inside the VLAN.
1521 val = entry->untagged ? MT7530_VLAN_EGRESS_UNTAG :
1522 MT7530_VLAN_EGRESS_TAG;
1523 mt7530_rmw(priv, MT7530_VAWD2,
1524 ETAG_CTRL_P_MASK(entry->port),
1525 ETAG_CTRL_P(entry->port, val));
1527 /* CPU port is always taken as a tagged port for serving more than one
1528 * VLANs across and also being applied with egress type stack mode for
1529 * that VLAN tags would be appended after hardware special tag used as
1532 mt7530_rmw(priv, MT7530_VAWD2,
1533 ETAG_CTRL_P_MASK(MT7530_CPU_PORT),
1534 ETAG_CTRL_P(MT7530_CPU_PORT,
1535 MT7530_VLAN_EGRESS_STACK));
1539 mt7530_hw_vlan_del(struct mt7530_priv *priv,
1540 struct mt7530_hw_vlan_entry *entry)
1545 new_members = entry->old_members & ~BIT(entry->port);
1547 val = mt7530_read(priv, MT7530_VAWD1);
1548 if (!(val & VLAN_VALID)) {
1550 "Cannot be deleted due to invalid entry\n");
1554 /* If certain member apart from CPU port is still alive in the VLAN,
1555 * the entry would be kept valid. Otherwise, the entry is got to be
1558 if (new_members && new_members != BIT(MT7530_CPU_PORT)) {
1559 val = IVL_MAC | VTAG_EN | PORT_MEM(new_members) |
1561 mt7530_write(priv, MT7530_VAWD1, val);
1563 mt7530_write(priv, MT7530_VAWD1, 0);
1564 mt7530_write(priv, MT7530_VAWD2, 0);
1569 mt7530_hw_vlan_update(struct mt7530_priv *priv, u16 vid,
1570 struct mt7530_hw_vlan_entry *entry,
1571 mt7530_vlan_op vlan_op)
1576 mt7530_vlan_cmd(priv, MT7530_VTCR_RD_VID, vid);
1578 val = mt7530_read(priv, MT7530_VAWD1);
1580 entry->old_members = (val >> PORT_MEM_SHFT) & PORT_MEM_MASK;
1582 /* Manipulate entry */
1583 vlan_op(priv, entry);
1585 /* Flush result to hardware */
1586 mt7530_vlan_cmd(priv, MT7530_VTCR_WR_VID, vid);
1590 mt7530_port_vlan_add(struct dsa_switch *ds, int port,
1591 const struct switchdev_obj_port_vlan *vlan,
1592 struct netlink_ext_ack *extack)
1594 bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
1595 bool pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
1596 struct mt7530_hw_vlan_entry new_entry;
1597 struct mt7530_priv *priv = ds->priv;
1599 mutex_lock(&priv->reg_mutex);
1601 mt7530_hw_vlan_entry_init(&new_entry, port, untagged);
1602 mt7530_hw_vlan_update(priv, vlan->vid, &new_entry, mt7530_hw_vlan_add);
1605 mt7530_rmw(priv, MT7530_PPBV1_P(port), G0_PORT_VID_MASK,
1606 G0_PORT_VID(vlan->vid));
1607 priv->ports[port].pvid = vlan->vid;
1610 mutex_unlock(&priv->reg_mutex);
1616 mt7530_port_vlan_del(struct dsa_switch *ds, int port,
1617 const struct switchdev_obj_port_vlan *vlan)
1619 struct mt7530_hw_vlan_entry target_entry;
1620 struct mt7530_priv *priv = ds->priv;
1623 mutex_lock(&priv->reg_mutex);
1625 pvid = priv->ports[port].pvid;
1626 mt7530_hw_vlan_entry_init(&target_entry, port, 0);
1627 mt7530_hw_vlan_update(priv, vlan->vid, &target_entry,
1628 mt7530_hw_vlan_del);
1630 /* PVID is being restored to the default whenever the PVID port
1631 * is being removed from the VLAN.
1633 if (pvid == vlan->vid)
1634 pvid = G0_PORT_VID_DEF;
1636 mt7530_rmw(priv, MT7530_PPBV1_P(port), G0_PORT_VID_MASK, pvid);
1637 priv->ports[port].pvid = pvid;
1639 mutex_unlock(&priv->reg_mutex);
1644 static int mt753x_mirror_port_get(unsigned int id, u32 val)
1646 return (id == ID_MT7531) ? MT7531_MIRROR_PORT_GET(val) :
1650 static int mt753x_mirror_port_set(unsigned int id, u32 val)
1652 return (id == ID_MT7531) ? MT7531_MIRROR_PORT_SET(val) :
1656 static int mt753x_port_mirror_add(struct dsa_switch *ds, int port,
1657 struct dsa_mall_mirror_tc_entry *mirror,
1660 struct mt7530_priv *priv = ds->priv;
1664 /* Check for existent entry */
1665 if ((ingress ? priv->mirror_rx : priv->mirror_tx) & BIT(port))
1668 val = mt7530_read(priv, MT753X_MIRROR_REG(priv->id));
1670 /* MT7530 only supports one monitor port */
1671 monitor_port = mt753x_mirror_port_get(priv->id, val);
1672 if (val & MT753X_MIRROR_EN(priv->id) &&
1673 monitor_port != mirror->to_local_port)
1676 val |= MT753X_MIRROR_EN(priv->id);
1677 val &= ~MT753X_MIRROR_MASK(priv->id);
1678 val |= mt753x_mirror_port_set(priv->id, mirror->to_local_port);
1679 mt7530_write(priv, MT753X_MIRROR_REG(priv->id), val);
1681 val = mt7530_read(priv, MT7530_PCR_P(port));
1684 priv->mirror_rx |= BIT(port);
1687 priv->mirror_tx |= BIT(port);
1689 mt7530_write(priv, MT7530_PCR_P(port), val);
1694 static void mt753x_port_mirror_del(struct dsa_switch *ds, int port,
1695 struct dsa_mall_mirror_tc_entry *mirror)
1697 struct mt7530_priv *priv = ds->priv;
1700 val = mt7530_read(priv, MT7530_PCR_P(port));
1701 if (mirror->ingress) {
1702 val &= ~PORT_RX_MIR;
1703 priv->mirror_rx &= ~BIT(port);
1705 val &= ~PORT_TX_MIR;
1706 priv->mirror_tx &= ~BIT(port);
1708 mt7530_write(priv, MT7530_PCR_P(port), val);
1710 if (!priv->mirror_rx && !priv->mirror_tx) {
1711 val = mt7530_read(priv, MT753X_MIRROR_REG(priv->id));
1712 val &= ~MT753X_MIRROR_EN(priv->id);
1713 mt7530_write(priv, MT753X_MIRROR_REG(priv->id), val);
1717 static enum dsa_tag_protocol
1718 mtk_get_tag_protocol(struct dsa_switch *ds, int port,
1719 enum dsa_tag_protocol mp)
1721 struct mt7530_priv *priv = ds->priv;
1723 if (port != MT7530_CPU_PORT) {
1725 "port not matched with tagging CPU port\n");
1726 return DSA_TAG_PROTO_NONE;
1728 return DSA_TAG_PROTO_MTK;
1732 #ifdef CONFIG_GPIOLIB
1734 mt7530_gpio_to_bit(unsigned int offset)
1736 /* Map GPIO offset to register bit
1737 * [ 2: 0] port 0 LED 0..2 as GPIO 0..2
1738 * [ 6: 4] port 1 LED 0..2 as GPIO 3..5
1739 * [10: 8] port 2 LED 0..2 as GPIO 6..8
1740 * [14:12] port 3 LED 0..2 as GPIO 9..11
1741 * [18:16] port 4 LED 0..2 as GPIO 12..14
1743 return BIT(offset + offset / 3);
1747 mt7530_gpio_get(struct gpio_chip *gc, unsigned int offset)
1749 struct mt7530_priv *priv = gpiochip_get_data(gc);
1750 u32 bit = mt7530_gpio_to_bit(offset);
1752 return !!(mt7530_read(priv, MT7530_LED_GPIO_DATA) & bit);
1756 mt7530_gpio_set(struct gpio_chip *gc, unsigned int offset, int value)
1758 struct mt7530_priv *priv = gpiochip_get_data(gc);
1759 u32 bit = mt7530_gpio_to_bit(offset);
1762 mt7530_set(priv, MT7530_LED_GPIO_DATA, bit);
1764 mt7530_clear(priv, MT7530_LED_GPIO_DATA, bit);
1768 mt7530_gpio_get_direction(struct gpio_chip *gc, unsigned int offset)
1770 struct mt7530_priv *priv = gpiochip_get_data(gc);
1771 u32 bit = mt7530_gpio_to_bit(offset);
1773 return (mt7530_read(priv, MT7530_LED_GPIO_DIR) & bit) ?
1774 GPIO_LINE_DIRECTION_OUT : GPIO_LINE_DIRECTION_IN;
1778 mt7530_gpio_direction_input(struct gpio_chip *gc, unsigned int offset)
1780 struct mt7530_priv *priv = gpiochip_get_data(gc);
1781 u32 bit = mt7530_gpio_to_bit(offset);
1783 mt7530_clear(priv, MT7530_LED_GPIO_OE, bit);
1784 mt7530_clear(priv, MT7530_LED_GPIO_DIR, bit);
1790 mt7530_gpio_direction_output(struct gpio_chip *gc, unsigned int offset, int value)
1792 struct mt7530_priv *priv = gpiochip_get_data(gc);
1793 u32 bit = mt7530_gpio_to_bit(offset);
1795 mt7530_set(priv, MT7530_LED_GPIO_DIR, bit);
1798 mt7530_set(priv, MT7530_LED_GPIO_DATA, bit);
1800 mt7530_clear(priv, MT7530_LED_GPIO_DATA, bit);
1802 mt7530_set(priv, MT7530_LED_GPIO_OE, bit);
1808 mt7530_setup_gpio(struct mt7530_priv *priv)
1810 struct device *dev = priv->dev;
1811 struct gpio_chip *gc;
1813 gc = devm_kzalloc(dev, sizeof(*gc), GFP_KERNEL);
1817 mt7530_write(priv, MT7530_LED_GPIO_OE, 0);
1818 mt7530_write(priv, MT7530_LED_GPIO_DIR, 0);
1819 mt7530_write(priv, MT7530_LED_IO_MODE, 0);
1821 gc->label = "mt7530";
1823 gc->owner = THIS_MODULE;
1824 gc->get_direction = mt7530_gpio_get_direction;
1825 gc->direction_input = mt7530_gpio_direction_input;
1826 gc->direction_output = mt7530_gpio_direction_output;
1827 gc->get = mt7530_gpio_get;
1828 gc->set = mt7530_gpio_set;
1831 gc->can_sleep = true;
1833 return devm_gpiochip_add_data(dev, gc, priv);
1835 #endif /* CONFIG_GPIOLIB */
1838 mt7530_irq_thread_fn(int irq, void *dev_id)
1840 struct mt7530_priv *priv = dev_id;
1841 bool handled = false;
1845 mutex_lock_nested(&priv->bus->mdio_lock, MDIO_MUTEX_NESTED);
1846 val = mt7530_mii_read(priv, MT7530_SYS_INT_STS);
1847 mt7530_mii_write(priv, MT7530_SYS_INT_STS, val);
1848 mutex_unlock(&priv->bus->mdio_lock);
1850 for (p = 0; p < MT7530_NUM_PHYS; p++) {
1854 irq = irq_find_mapping(priv->irq_domain, p);
1855 handle_nested_irq(irq);
1860 return IRQ_RETVAL(handled);
1864 mt7530_irq_mask(struct irq_data *d)
1866 struct mt7530_priv *priv = irq_data_get_irq_chip_data(d);
1868 priv->irq_enable &= ~BIT(d->hwirq);
1872 mt7530_irq_unmask(struct irq_data *d)
1874 struct mt7530_priv *priv = irq_data_get_irq_chip_data(d);
1876 priv->irq_enable |= BIT(d->hwirq);
1880 mt7530_irq_bus_lock(struct irq_data *d)
1882 struct mt7530_priv *priv = irq_data_get_irq_chip_data(d);
1884 mutex_lock_nested(&priv->bus->mdio_lock, MDIO_MUTEX_NESTED);
1888 mt7530_irq_bus_sync_unlock(struct irq_data *d)
1890 struct mt7530_priv *priv = irq_data_get_irq_chip_data(d);
1892 mt7530_mii_write(priv, MT7530_SYS_INT_EN, priv->irq_enable);
1893 mutex_unlock(&priv->bus->mdio_lock);
1896 static struct irq_chip mt7530_irq_chip = {
1897 .name = KBUILD_MODNAME,
1898 .irq_mask = mt7530_irq_mask,
1899 .irq_unmask = mt7530_irq_unmask,
1900 .irq_bus_lock = mt7530_irq_bus_lock,
1901 .irq_bus_sync_unlock = mt7530_irq_bus_sync_unlock,
1905 mt7530_irq_map(struct irq_domain *domain, unsigned int irq,
1906 irq_hw_number_t hwirq)
1908 irq_set_chip_data(irq, domain->host_data);
1909 irq_set_chip_and_handler(irq, &mt7530_irq_chip, handle_simple_irq);
1910 irq_set_nested_thread(irq, true);
1911 irq_set_noprobe(irq);
1916 static const struct irq_domain_ops mt7530_irq_domain_ops = {
1917 .map = mt7530_irq_map,
1918 .xlate = irq_domain_xlate_onecell,
1922 mt7530_setup_mdio_irq(struct mt7530_priv *priv)
1924 struct dsa_switch *ds = priv->ds;
1927 for (p = 0; p < MT7530_NUM_PHYS; p++) {
1928 if (BIT(p) & ds->phys_mii_mask) {
1931 irq = irq_create_mapping(priv->irq_domain, p);
1932 ds->slave_mii_bus->irq[p] = irq;
1938 mt7530_setup_irq(struct mt7530_priv *priv)
1940 struct device *dev = priv->dev;
1941 struct device_node *np = dev->of_node;
1944 if (!of_property_read_bool(np, "interrupt-controller")) {
1945 dev_info(dev, "no interrupt support\n");
1949 priv->irq = of_irq_get(np, 0);
1950 if (priv->irq <= 0) {
1951 dev_err(dev, "failed to get parent IRQ: %d\n", priv->irq);
1952 return priv->irq ? : -EINVAL;
1955 priv->irq_domain = irq_domain_add_linear(np, MT7530_NUM_PHYS,
1956 &mt7530_irq_domain_ops, priv);
1957 if (!priv->irq_domain) {
1958 dev_err(dev, "failed to create IRQ domain\n");
1962 /* This register must be set for MT7530 to properly fire interrupts */
1963 if (priv->id != ID_MT7531)
1964 mt7530_set(priv, MT7530_TOP_SIG_CTRL, TOP_SIG_CTRL_NORMAL);
1966 ret = request_threaded_irq(priv->irq, NULL, mt7530_irq_thread_fn,
1967 IRQF_ONESHOT, KBUILD_MODNAME, priv);
1969 irq_domain_remove(priv->irq_domain);
1970 dev_err(dev, "failed to request IRQ: %d\n", ret);
1978 mt7530_free_mdio_irq(struct mt7530_priv *priv)
1982 for (p = 0; p < MT7530_NUM_PHYS; p++) {
1983 if (BIT(p) & priv->ds->phys_mii_mask) {
1986 irq = irq_find_mapping(priv->irq_domain, p);
1987 irq_dispose_mapping(irq);
1993 mt7530_free_irq_common(struct mt7530_priv *priv)
1995 free_irq(priv->irq, priv);
1996 irq_domain_remove(priv->irq_domain);
2000 mt7530_free_irq(struct mt7530_priv *priv)
2002 mt7530_free_mdio_irq(priv);
2003 mt7530_free_irq_common(priv);
2007 mt7530_setup_mdio(struct mt7530_priv *priv)
2009 struct dsa_switch *ds = priv->ds;
2010 struct device *dev = priv->dev;
2011 struct mii_bus *bus;
2015 bus = devm_mdiobus_alloc(dev);
2019 ds->slave_mii_bus = bus;
2021 bus->name = KBUILD_MODNAME "-mii";
2022 snprintf(bus->id, MII_BUS_ID_SIZE, KBUILD_MODNAME "-%d", idx++);
2023 bus->read = mt753x_phy_read;
2024 bus->write = mt753x_phy_write;
2026 bus->phy_mask = ~ds->phys_mii_mask;
2029 mt7530_setup_mdio_irq(priv);
2031 ret = mdiobus_register(bus);
2033 dev_err(dev, "failed to register MDIO bus: %d\n", ret);
2035 mt7530_free_mdio_irq(priv);
2042 mt7530_setup(struct dsa_switch *ds)
2044 struct mt7530_priv *priv = ds->priv;
2045 struct device_node *phy_node;
2046 struct device_node *mac_np;
2047 struct mt7530_dummy_poll p;
2048 phy_interface_t interface;
2049 struct device_node *dn;
2053 /* The parent node of master netdev which holds the common system
2054 * controller also is the container for two GMACs nodes representing
2055 * as two netdev instances.
2057 dn = dsa_to_port(ds, MT7530_CPU_PORT)->master->dev.of_node->parent;
2058 ds->mtu_enforcement_ingress = true;
2060 if (priv->id == ID_MT7530) {
2061 regulator_set_voltage(priv->core_pwr, 1000000, 1000000);
2062 ret = regulator_enable(priv->core_pwr);
2065 "Failed to enable core power: %d\n", ret);
2069 regulator_set_voltage(priv->io_pwr, 3300000, 3300000);
2070 ret = regulator_enable(priv->io_pwr);
2072 dev_err(priv->dev, "Failed to enable io pwr: %d\n",
2078 /* Reset whole chip through gpio pin or memory-mapped registers for
2079 * different type of hardware
2082 reset_control_assert(priv->rstc);
2083 usleep_range(1000, 1100);
2084 reset_control_deassert(priv->rstc);
2086 gpiod_set_value_cansleep(priv->reset, 0);
2087 usleep_range(1000, 1100);
2088 gpiod_set_value_cansleep(priv->reset, 1);
2091 /* Waiting for MT7530 got to stable */
2092 INIT_MT7530_DUMMY_POLL(&p, priv, MT7530_HWTRAP);
2093 ret = readx_poll_timeout(_mt7530_read, &p, val, val != 0,
2096 dev_err(priv->dev, "reset timeout\n");
2100 id = mt7530_read(priv, MT7530_CREV);
2101 id >>= CHIP_NAME_SHIFT;
2102 if (id != MT7530_ID) {
2103 dev_err(priv->dev, "chip %x can't be supported\n", id);
2107 /* Reset the switch through internal reset */
2108 mt7530_write(priv, MT7530_SYS_CTRL,
2109 SYS_CTRL_PHY_RST | SYS_CTRL_SW_RST |
2112 /* Enable Port 6 only; P5 as GMAC5 which currently is not supported */
2113 val = mt7530_read(priv, MT7530_MHWTRAP);
2114 val &= ~MHWTRAP_P6_DIS & ~MHWTRAP_PHY_ACCESS;
2115 val |= MHWTRAP_MANUAL;
2116 mt7530_write(priv, MT7530_MHWTRAP, val);
2118 priv->p6_interface = PHY_INTERFACE_MODE_NA;
2120 /* Enable and reset MIB counters */
2121 mt7530_mib_reset(ds);
2123 for (i = 0; i < MT7530_NUM_PORTS; i++) {
2124 /* Disable forwarding by default on all ports */
2125 mt7530_rmw(priv, MT7530_PCR_P(i), PCR_MATRIX_MASK,
2128 if (dsa_is_cpu_port(ds, i)) {
2129 ret = mt753x_cpu_port_enable(ds, i);
2133 mt7530_port_disable(ds, i);
2135 /* Disable learning by default on all user ports */
2136 mt7530_set(priv, MT7530_PSC_P(i), SA_DIS);
2138 /* Enable consistent egress tag */
2139 mt7530_rmw(priv, MT7530_PVC_P(i), PVC_EG_TAG_MASK,
2140 PVC_EG_TAG(MT7530_VLAN_EG_CONSISTENT));
2144 priv->p5_intf_sel = P5_DISABLED;
2145 interface = PHY_INTERFACE_MODE_NA;
2147 if (!dsa_is_unused_port(ds, 5)) {
2148 priv->p5_intf_sel = P5_INTF_SEL_GMAC5;
2149 ret = of_get_phy_mode(dsa_to_port(ds, 5)->dn, &interface);
2150 if (ret && ret != -ENODEV)
2153 /* Scan the ethernet nodes. look for GMAC1, lookup used phy */
2154 for_each_child_of_node(dn, mac_np) {
2155 if (!of_device_is_compatible(mac_np,
2156 "mediatek,eth-mac"))
2159 ret = of_property_read_u32(mac_np, "reg", &id);
2160 if (ret < 0 || id != 1)
2163 phy_node = of_parse_phandle(mac_np, "phy-handle", 0);
2167 if (phy_node->parent == priv->dev->of_node->parent) {
2168 ret = of_get_phy_mode(mac_np, &interface);
2169 if (ret && ret != -ENODEV) {
2170 of_node_put(mac_np);
2173 id = of_mdio_parse_addr(ds->dev, phy_node);
2175 priv->p5_intf_sel = P5_INTF_SEL_PHY_P0;
2177 priv->p5_intf_sel = P5_INTF_SEL_PHY_P4;
2179 of_node_put(mac_np);
2180 of_node_put(phy_node);
2185 #ifdef CONFIG_GPIOLIB
2186 if (of_property_read_bool(priv->dev->of_node, "gpio-controller")) {
2187 ret = mt7530_setup_gpio(priv);
2191 #endif /* CONFIG_GPIOLIB */
2193 mt7530_setup_port5(ds, interface);
2195 /* Flush the FDB table */
2196 ret = mt7530_fdb_cmd(priv, MT7530_FDB_FLUSH, NULL);
2204 mt7531_setup(struct dsa_switch *ds)
2206 struct mt7530_priv *priv = ds->priv;
2207 struct mt7530_dummy_poll p;
2211 /* Reset whole chip through gpio pin or memory-mapped registers for
2212 * different type of hardware
2215 reset_control_assert(priv->rstc);
2216 usleep_range(1000, 1100);
2217 reset_control_deassert(priv->rstc);
2219 gpiod_set_value_cansleep(priv->reset, 0);
2220 usleep_range(1000, 1100);
2221 gpiod_set_value_cansleep(priv->reset, 1);
2224 /* Waiting for MT7530 got to stable */
2225 INIT_MT7530_DUMMY_POLL(&p, priv, MT7530_HWTRAP);
2226 ret = readx_poll_timeout(_mt7530_read, &p, val, val != 0,
2229 dev_err(priv->dev, "reset timeout\n");
2233 id = mt7530_read(priv, MT7531_CREV);
2234 id >>= CHIP_NAME_SHIFT;
2236 if (id != MT7531_ID) {
2237 dev_err(priv->dev, "chip %x can't be supported\n", id);
2241 /* Reset the switch through internal reset */
2242 mt7530_write(priv, MT7530_SYS_CTRL,
2243 SYS_CTRL_PHY_RST | SYS_CTRL_SW_RST |
2246 if (mt7531_dual_sgmii_supported(priv)) {
2247 priv->p5_intf_sel = P5_INTF_SEL_GMAC5_SGMII;
2249 /* Let ds->slave_mii_bus be able to access external phy. */
2250 mt7530_rmw(priv, MT7531_GPIO_MODE1, MT7531_GPIO11_RG_RXD2_MASK,
2251 MT7531_EXT_P_MDC_11);
2252 mt7530_rmw(priv, MT7531_GPIO_MODE1, MT7531_GPIO12_RG_RXD3_MASK,
2253 MT7531_EXT_P_MDIO_12);
2255 priv->p5_intf_sel = P5_INTF_SEL_GMAC5;
2257 dev_dbg(ds->dev, "P5 support %s interface\n",
2258 p5_intf_modes(priv->p5_intf_sel));
2260 mt7530_rmw(priv, MT7531_GPIO_MODE0, MT7531_GPIO0_MASK,
2261 MT7531_GPIO0_INTERRUPT);
2263 /* Let phylink decide the interface later. */
2264 priv->p5_interface = PHY_INTERFACE_MODE_NA;
2265 priv->p6_interface = PHY_INTERFACE_MODE_NA;
2267 /* Enable PHY core PLL, since phy_device has not yet been created
2268 * provided for phy_[read,write]_mmd_indirect is called, we provide
2269 * our own mt7531_ind_mmd_phy_[read,write] to complete this
2272 val = mt7531_ind_c45_phy_read(priv, MT753X_CTRL_PHY_ADDR,
2273 MDIO_MMD_VEND2, CORE_PLL_GROUP4);
2274 val |= MT7531_PHY_PLL_BYPASS_MODE;
2275 val &= ~MT7531_PHY_PLL_OFF;
2276 mt7531_ind_c45_phy_write(priv, MT753X_CTRL_PHY_ADDR, MDIO_MMD_VEND2,
2277 CORE_PLL_GROUP4, val);
2279 /* BPDU to CPU port */
2280 mt7530_rmw(priv, MT7531_CFC, MT7531_CPU_PMAP_MASK,
2281 BIT(MT7530_CPU_PORT));
2282 mt7530_rmw(priv, MT753X_BPC, MT753X_BPDU_PORT_FW_MASK,
2283 MT753X_BPDU_CPU_ONLY);
2285 /* Enable and reset MIB counters */
2286 mt7530_mib_reset(ds);
2288 for (i = 0; i < MT7530_NUM_PORTS; i++) {
2289 /* Disable forwarding by default on all ports */
2290 mt7530_rmw(priv, MT7530_PCR_P(i), PCR_MATRIX_MASK,
2293 mt7530_set(priv, MT7531_DBG_CNT(i), MT7531_DIS_CLR);
2295 if (dsa_is_cpu_port(ds, i)) {
2296 ret = mt753x_cpu_port_enable(ds, i);
2300 mt7530_port_disable(ds, i);
2302 /* Disable learning by default on all user ports */
2303 mt7530_set(priv, MT7530_PSC_P(i), SA_DIS);
2306 /* Enable consistent egress tag */
2307 mt7530_rmw(priv, MT7530_PVC_P(i), PVC_EG_TAG_MASK,
2308 PVC_EG_TAG(MT7530_VLAN_EG_CONSISTENT));
2311 ds->mtu_enforcement_ingress = true;
2313 /* Flush the FDB table */
2314 ret = mt7530_fdb_cmd(priv, MT7530_FDB_FLUSH, NULL);
2322 mt7530_phy_mode_supported(struct dsa_switch *ds, int port,
2323 const struct phylink_link_state *state)
2325 struct mt7530_priv *priv = ds->priv;
2328 case 0 ... 4: /* Internal phy */
2329 if (state->interface != PHY_INTERFACE_MODE_GMII)
2332 case 5: /* 2nd cpu port with phy of port 0 or 4 / external phy */
2333 if (!phy_interface_mode_is_rgmii(state->interface) &&
2334 state->interface != PHY_INTERFACE_MODE_MII &&
2335 state->interface != PHY_INTERFACE_MODE_GMII)
2338 case 6: /* 1st cpu port */
2339 if (state->interface != PHY_INTERFACE_MODE_RGMII &&
2340 state->interface != PHY_INTERFACE_MODE_TRGMII)
2344 dev_err(priv->dev, "%s: unsupported port: %i\n", __func__,
2352 static bool mt7531_is_rgmii_port(struct mt7530_priv *priv, u32 port)
2354 return (port == 5) && (priv->p5_intf_sel != P5_INTF_SEL_GMAC5_SGMII);
2358 mt7531_phy_mode_supported(struct dsa_switch *ds, int port,
2359 const struct phylink_link_state *state)
2361 struct mt7530_priv *priv = ds->priv;
2364 case 0 ... 4: /* Internal phy */
2365 if (state->interface != PHY_INTERFACE_MODE_GMII)
2368 case 5: /* 2nd cpu port supports either rgmii or sgmii/8023z */
2369 if (mt7531_is_rgmii_port(priv, port))
2370 return phy_interface_mode_is_rgmii(state->interface);
2372 case 6: /* 1st cpu port supports sgmii/8023z only */
2373 if (state->interface != PHY_INTERFACE_MODE_SGMII &&
2374 !phy_interface_mode_is_8023z(state->interface))
2378 dev_err(priv->dev, "%s: unsupported port: %i\n", __func__,
2387 mt753x_phy_mode_supported(struct dsa_switch *ds, int port,
2388 const struct phylink_link_state *state)
2390 struct mt7530_priv *priv = ds->priv;
2392 return priv->info->phy_mode_supported(ds, port, state);
2396 mt753x_pad_setup(struct dsa_switch *ds, const struct phylink_link_state *state)
2398 struct mt7530_priv *priv = ds->priv;
2400 return priv->info->pad_setup(ds, state->interface);
2404 mt7530_mac_config(struct dsa_switch *ds, int port, unsigned int mode,
2405 phy_interface_t interface)
2407 struct mt7530_priv *priv = ds->priv;
2409 /* Only need to setup port5. */
2413 mt7530_setup_port5(priv->ds, interface);
2418 static int mt7531_rgmii_setup(struct mt7530_priv *priv, u32 port,
2419 phy_interface_t interface,
2420 struct phy_device *phydev)
2424 if (!mt7531_is_rgmii_port(priv, port)) {
2425 dev_err(priv->dev, "RGMII mode is not available for port %d\n",
2430 val = mt7530_read(priv, MT7531_CLKGEN_CTRL);
2432 val &= ~GP_MODE_MASK;
2433 val |= GP_MODE(MT7531_GP_MODE_RGMII);
2434 val &= ~CLK_SKEW_IN_MASK;
2435 val |= CLK_SKEW_IN(MT7531_CLK_SKEW_NO_CHG);
2436 val &= ~CLK_SKEW_OUT_MASK;
2437 val |= CLK_SKEW_OUT(MT7531_CLK_SKEW_NO_CHG);
2438 val |= TXCLK_NO_REVERSE | RXCLK_NO_DELAY;
2440 /* Do not adjust rgmii delay when vendor phy driver presents. */
2441 if (!phydev || phy_driver_is_genphy(phydev)) {
2442 val &= ~(TXCLK_NO_REVERSE | RXCLK_NO_DELAY);
2443 switch (interface) {
2444 case PHY_INTERFACE_MODE_RGMII:
2445 val |= TXCLK_NO_REVERSE;
2446 val |= RXCLK_NO_DELAY;
2448 case PHY_INTERFACE_MODE_RGMII_RXID:
2449 val |= TXCLK_NO_REVERSE;
2451 case PHY_INTERFACE_MODE_RGMII_TXID:
2452 val |= RXCLK_NO_DELAY;
2454 case PHY_INTERFACE_MODE_RGMII_ID:
2460 mt7530_write(priv, MT7531_CLKGEN_CTRL, val);
2465 static void mt7531_sgmii_validate(struct mt7530_priv *priv, int port,
2466 unsigned long *supported)
2468 /* Port5 supports ethier RGMII or SGMII.
2469 * Port6 supports SGMII only.
2473 if (mt7531_is_rgmii_port(priv, port))
2477 phylink_set(supported, 1000baseX_Full);
2478 phylink_set(supported, 2500baseX_Full);
2479 phylink_set(supported, 2500baseT_Full);
2484 mt7531_sgmii_link_up_force(struct dsa_switch *ds, int port,
2485 unsigned int mode, phy_interface_t interface,
2486 int speed, int duplex)
2488 struct mt7530_priv *priv = ds->priv;
2491 /* For adjusting speed and duplex of SGMII force mode. */
2492 if (interface != PHY_INTERFACE_MODE_SGMII ||
2493 phylink_autoneg_inband(mode))
2496 /* SGMII force mode setting */
2497 val = mt7530_read(priv, MT7531_SGMII_MODE(port));
2498 val &= ~MT7531_SGMII_IF_MODE_MASK;
2502 val |= MT7531_SGMII_FORCE_SPEED_10;
2505 val |= MT7531_SGMII_FORCE_SPEED_100;
2508 val |= MT7531_SGMII_FORCE_SPEED_1000;
2512 /* MT7531 SGMII 1G force mode can only work in full duplex mode,
2513 * no matter MT7531_SGMII_FORCE_HALF_DUPLEX is set or not.
2515 if ((speed == SPEED_10 || speed == SPEED_100) &&
2516 duplex != DUPLEX_FULL)
2517 val |= MT7531_SGMII_FORCE_HALF_DUPLEX;
2519 mt7530_write(priv, MT7531_SGMII_MODE(port), val);
2522 static bool mt753x_is_mac_port(u32 port)
2524 return (port == 5 || port == 6);
2527 static int mt7531_sgmii_setup_mode_force(struct mt7530_priv *priv, u32 port,
2528 phy_interface_t interface)
2532 if (!mt753x_is_mac_port(port))
2535 mt7530_set(priv, MT7531_QPHY_PWR_STATE_CTRL(port),
2536 MT7531_SGMII_PHYA_PWD);
2538 val = mt7530_read(priv, MT7531_PHYA_CTRL_SIGNAL3(port));
2539 val &= ~MT7531_RG_TPHY_SPEED_MASK;
2540 /* Setup 2.5 times faster clock for 2.5Gbps data speeds with 10B/8B
2543 val |= (interface == PHY_INTERFACE_MODE_2500BASEX) ?
2544 MT7531_RG_TPHY_SPEED_3_125G : MT7531_RG_TPHY_SPEED_1_25G;
2545 mt7530_write(priv, MT7531_PHYA_CTRL_SIGNAL3(port), val);
2547 mt7530_clear(priv, MT7531_PCS_CONTROL_1(port), MT7531_SGMII_AN_ENABLE);
2549 /* MT7531 SGMII 1G and 2.5G force mode can only work in full duplex
2550 * mode, no matter MT7531_SGMII_FORCE_HALF_DUPLEX is set or not.
2552 mt7530_rmw(priv, MT7531_SGMII_MODE(port),
2553 MT7531_SGMII_IF_MODE_MASK | MT7531_SGMII_REMOTE_FAULT_DIS,
2554 MT7531_SGMII_FORCE_SPEED_1000);
2556 mt7530_write(priv, MT7531_QPHY_PWR_STATE_CTRL(port), 0);
2561 static int mt7531_sgmii_setup_mode_an(struct mt7530_priv *priv, int port,
2562 phy_interface_t interface)
2564 if (!mt753x_is_mac_port(port))
2567 mt7530_set(priv, MT7531_QPHY_PWR_STATE_CTRL(port),
2568 MT7531_SGMII_PHYA_PWD);
2570 mt7530_rmw(priv, MT7531_PHYA_CTRL_SIGNAL3(port),
2571 MT7531_RG_TPHY_SPEED_MASK, MT7531_RG_TPHY_SPEED_1_25G);
2573 mt7530_set(priv, MT7531_SGMII_MODE(port),
2574 MT7531_SGMII_REMOTE_FAULT_DIS |
2575 MT7531_SGMII_SPEED_DUPLEX_AN);
2577 mt7530_rmw(priv, MT7531_PCS_SPEED_ABILITY(port),
2578 MT7531_SGMII_TX_CONFIG_MASK, 1);
2580 mt7530_set(priv, MT7531_PCS_CONTROL_1(port), MT7531_SGMII_AN_ENABLE);
2582 mt7530_set(priv, MT7531_PCS_CONTROL_1(port), MT7531_SGMII_AN_RESTART);
2584 mt7530_write(priv, MT7531_QPHY_PWR_STATE_CTRL(port), 0);
2589 static void mt7531_sgmii_restart_an(struct dsa_switch *ds, int port)
2591 struct mt7530_priv *priv = ds->priv;
2594 /* Only restart AN when AN is enabled */
2595 val = mt7530_read(priv, MT7531_PCS_CONTROL_1(port));
2596 if (val & MT7531_SGMII_AN_ENABLE) {
2597 val |= MT7531_SGMII_AN_RESTART;
2598 mt7530_write(priv, MT7531_PCS_CONTROL_1(port), val);
2603 mt7531_mac_config(struct dsa_switch *ds, int port, unsigned int mode,
2604 phy_interface_t interface)
2606 struct mt7530_priv *priv = ds->priv;
2607 struct phy_device *phydev;
2608 struct dsa_port *dp;
2610 if (!mt753x_is_mac_port(port)) {
2611 dev_err(priv->dev, "port %d is not a MAC port\n", port);
2615 switch (interface) {
2616 case PHY_INTERFACE_MODE_RGMII:
2617 case PHY_INTERFACE_MODE_RGMII_ID:
2618 case PHY_INTERFACE_MODE_RGMII_RXID:
2619 case PHY_INTERFACE_MODE_RGMII_TXID:
2620 dp = dsa_to_port(ds, port);
2621 phydev = dp->slave->phydev;
2622 return mt7531_rgmii_setup(priv, port, interface, phydev);
2623 case PHY_INTERFACE_MODE_SGMII:
2624 return mt7531_sgmii_setup_mode_an(priv, port, interface);
2625 case PHY_INTERFACE_MODE_NA:
2626 case PHY_INTERFACE_MODE_1000BASEX:
2627 case PHY_INTERFACE_MODE_2500BASEX:
2628 if (phylink_autoneg_inband(mode))
2631 return mt7531_sgmii_setup_mode_force(priv, port, interface);
2640 mt753x_mac_config(struct dsa_switch *ds, int port, unsigned int mode,
2641 const struct phylink_link_state *state)
2643 struct mt7530_priv *priv = ds->priv;
2645 return priv->info->mac_port_config(ds, port, mode, state->interface);
2649 mt753x_phylink_mac_config(struct dsa_switch *ds, int port, unsigned int mode,
2650 const struct phylink_link_state *state)
2652 struct mt7530_priv *priv = ds->priv;
2653 u32 mcr_cur, mcr_new;
2655 if (!mt753x_phy_mode_supported(ds, port, state))
2659 case 0 ... 4: /* Internal phy */
2660 if (state->interface != PHY_INTERFACE_MODE_GMII)
2663 case 5: /* 2nd cpu port with phy of port 0 or 4 / external phy */
2664 if (priv->p5_interface == state->interface)
2667 if (mt753x_mac_config(ds, port, mode, state) < 0)
2670 if (priv->p5_intf_sel != P5_DISABLED)
2671 priv->p5_interface = state->interface;
2673 case 6: /* 1st cpu port */
2674 if (priv->p6_interface == state->interface)
2677 mt753x_pad_setup(ds, state);
2679 if (mt753x_mac_config(ds, port, mode, state) < 0)
2682 priv->p6_interface = state->interface;
2686 dev_err(ds->dev, "%s: unsupported %s port: %i\n",
2687 __func__, phy_modes(state->interface), port);
2691 if (phylink_autoneg_inband(mode) &&
2692 state->interface != PHY_INTERFACE_MODE_SGMII) {
2693 dev_err(ds->dev, "%s: in-band negotiation unsupported\n",
2698 mcr_cur = mt7530_read(priv, MT7530_PMCR_P(port));
2700 mcr_new &= ~PMCR_LINK_SETTINGS_MASK;
2701 mcr_new |= PMCR_IFG_XMIT(1) | PMCR_MAC_MODE | PMCR_BACKOFF_EN |
2702 PMCR_BACKPR_EN | PMCR_FORCE_MODE_ID(priv->id);
2704 /* Are we connected to external phy */
2705 if (port == 5 && dsa_is_user_port(ds, 5))
2706 mcr_new |= PMCR_EXT_PHY;
2708 if (mcr_new != mcr_cur)
2709 mt7530_write(priv, MT7530_PMCR_P(port), mcr_new);
2713 mt753x_phylink_mac_an_restart(struct dsa_switch *ds, int port)
2715 struct mt7530_priv *priv = ds->priv;
2717 if (!priv->info->mac_pcs_an_restart)
2720 priv->info->mac_pcs_an_restart(ds, port);
2723 static void mt753x_phylink_mac_link_down(struct dsa_switch *ds, int port,
2725 phy_interface_t interface)
2727 struct mt7530_priv *priv = ds->priv;
2729 mt7530_clear(priv, MT7530_PMCR_P(port), PMCR_LINK_SETTINGS_MASK);
2732 static void mt753x_mac_pcs_link_up(struct dsa_switch *ds, int port,
2733 unsigned int mode, phy_interface_t interface,
2734 int speed, int duplex)
2736 struct mt7530_priv *priv = ds->priv;
2738 if (!priv->info->mac_pcs_link_up)
2741 priv->info->mac_pcs_link_up(ds, port, mode, interface, speed, duplex);
2744 static void mt753x_phylink_mac_link_up(struct dsa_switch *ds, int port,
2746 phy_interface_t interface,
2747 struct phy_device *phydev,
2748 int speed, int duplex,
2749 bool tx_pause, bool rx_pause)
2751 struct mt7530_priv *priv = ds->priv;
2754 mt753x_mac_pcs_link_up(ds, port, mode, interface, speed, duplex);
2756 mcr = PMCR_RX_EN | PMCR_TX_EN | PMCR_FORCE_LNK;
2758 /* MT753x MAC works in 1G full duplex mode for all up-clocked
2761 if (interface == PHY_INTERFACE_MODE_TRGMII ||
2762 (phy_interface_mode_is_8023z(interface))) {
2764 duplex = DUPLEX_FULL;
2769 mcr |= PMCR_FORCE_SPEED_1000;
2772 mcr |= PMCR_FORCE_SPEED_100;
2775 if (duplex == DUPLEX_FULL) {
2776 mcr |= PMCR_FORCE_FDX;
2778 mcr |= PMCR_TX_FC_EN;
2780 mcr |= PMCR_RX_FC_EN;
2783 if (mode == MLO_AN_PHY && phydev && phy_init_eee(phydev, 0) >= 0) {
2786 mcr |= PMCR_FORCE_EEE1G;
2789 mcr |= PMCR_FORCE_EEE100;
2794 mt7530_set(priv, MT7530_PMCR_P(port), mcr);
2798 mt7531_cpu_port_config(struct dsa_switch *ds, int port)
2800 struct mt7530_priv *priv = ds->priv;
2801 phy_interface_t interface;
2807 if (mt7531_is_rgmii_port(priv, port))
2808 interface = PHY_INTERFACE_MODE_RGMII;
2810 interface = PHY_INTERFACE_MODE_2500BASEX;
2812 priv->p5_interface = interface;
2815 interface = PHY_INTERFACE_MODE_2500BASEX;
2817 mt7531_pad_setup(ds, interface);
2819 priv->p6_interface = interface;
2825 if (interface == PHY_INTERFACE_MODE_2500BASEX)
2830 ret = mt7531_mac_config(ds, port, MLO_AN_FIXED, interface);
2833 mt7530_write(priv, MT7530_PMCR_P(port),
2834 PMCR_CPU_PORT_SETTING(priv->id));
2835 mt753x_phylink_mac_link_up(ds, port, MLO_AN_FIXED, interface, NULL,
2836 speed, DUPLEX_FULL, true, true);
2842 mt7530_mac_port_validate(struct dsa_switch *ds, int port,
2843 unsigned long *supported)
2846 phylink_set(supported, 1000baseX_Full);
2849 static void mt7531_mac_port_validate(struct dsa_switch *ds, int port,
2850 unsigned long *supported)
2852 struct mt7530_priv *priv = ds->priv;
2854 mt7531_sgmii_validate(priv, port, supported);
2858 mt753x_phylink_validate(struct dsa_switch *ds, int port,
2859 unsigned long *supported,
2860 struct phylink_link_state *state)
2862 __ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = { 0, };
2863 struct mt7530_priv *priv = ds->priv;
2865 if (state->interface != PHY_INTERFACE_MODE_NA &&
2866 !mt753x_phy_mode_supported(ds, port, state)) {
2867 linkmode_zero(supported);
2871 phylink_set_port_modes(mask);
2873 if (state->interface != PHY_INTERFACE_MODE_TRGMII ||
2874 !phy_interface_mode_is_8023z(state->interface)) {
2875 phylink_set(mask, 10baseT_Half);
2876 phylink_set(mask, 10baseT_Full);
2877 phylink_set(mask, 100baseT_Half);
2878 phylink_set(mask, 100baseT_Full);
2879 phylink_set(mask, Autoneg);
2882 /* This switch only supports 1G full-duplex. */
2883 if (state->interface != PHY_INTERFACE_MODE_MII)
2884 phylink_set(mask, 1000baseT_Full);
2886 priv->info->mac_port_validate(ds, port, mask);
2888 phylink_set(mask, Pause);
2889 phylink_set(mask, Asym_Pause);
2891 linkmode_and(supported, supported, mask);
2892 linkmode_and(state->advertising, state->advertising, mask);
2894 /* We can only operate at 2500BaseX or 1000BaseX. If requested
2895 * to advertise both, only report advertising at 2500BaseX.
2897 phylink_helper_basex_speed(state);
2901 mt7530_phylink_mac_link_state(struct dsa_switch *ds, int port,
2902 struct phylink_link_state *state)
2904 struct mt7530_priv *priv = ds->priv;
2907 if (port < 0 || port >= MT7530_NUM_PORTS)
2910 pmsr = mt7530_read(priv, MT7530_PMSR_P(port));
2912 state->link = (pmsr & PMSR_LINK);
2913 state->an_complete = state->link;
2914 state->duplex = !!(pmsr & PMSR_DPX);
2916 switch (pmsr & PMSR_SPEED_MASK) {
2918 state->speed = SPEED_10;
2920 case PMSR_SPEED_100:
2921 state->speed = SPEED_100;
2923 case PMSR_SPEED_1000:
2924 state->speed = SPEED_1000;
2927 state->speed = SPEED_UNKNOWN;
2931 state->pause &= ~(MLO_PAUSE_RX | MLO_PAUSE_TX);
2932 if (pmsr & PMSR_RX_FC)
2933 state->pause |= MLO_PAUSE_RX;
2934 if (pmsr & PMSR_TX_FC)
2935 state->pause |= MLO_PAUSE_TX;
2941 mt7531_sgmii_pcs_get_state_an(struct mt7530_priv *priv, int port,
2942 struct phylink_link_state *state)
2947 status = mt7530_read(priv, MT7531_PCS_CONTROL_1(port));
2948 state->link = !!(status & MT7531_SGMII_LINK_STATUS);
2949 if (state->interface == PHY_INTERFACE_MODE_SGMII &&
2950 (status & MT7531_SGMII_AN_ENABLE)) {
2951 val = mt7530_read(priv, MT7531_PCS_SPEED_ABILITY(port));
2952 config_reg = val >> 16;
2954 switch (config_reg & LPA_SGMII_SPD_MASK) {
2955 case LPA_SGMII_1000:
2956 state->speed = SPEED_1000;
2959 state->speed = SPEED_100;
2962 state->speed = SPEED_10;
2965 dev_err(priv->dev, "invalid sgmii PHY speed\n");
2966 state->link = false;
2970 if (config_reg & LPA_SGMII_FULL_DUPLEX)
2971 state->duplex = DUPLEX_FULL;
2973 state->duplex = DUPLEX_HALF;
2980 mt7531_phylink_mac_link_state(struct dsa_switch *ds, int port,
2981 struct phylink_link_state *state)
2983 struct mt7530_priv *priv = ds->priv;
2985 if (state->interface == PHY_INTERFACE_MODE_SGMII)
2986 return mt7531_sgmii_pcs_get_state_an(priv, port, state);
2992 mt753x_phylink_mac_link_state(struct dsa_switch *ds, int port,
2993 struct phylink_link_state *state)
2995 struct mt7530_priv *priv = ds->priv;
2997 return priv->info->mac_port_get_state(ds, port, state);
3001 mt753x_setup(struct dsa_switch *ds)
3003 struct mt7530_priv *priv = ds->priv;
3004 int ret = priv->info->sw_setup(ds);
3009 ret = mt7530_setup_irq(priv);
3013 ret = mt7530_setup_mdio(priv);
3014 if (ret && priv->irq)
3015 mt7530_free_irq_common(priv);
3020 static int mt753x_get_mac_eee(struct dsa_switch *ds, int port,
3021 struct ethtool_eee *e)
3023 struct mt7530_priv *priv = ds->priv;
3024 u32 eeecr = mt7530_read(priv, MT7530_PMEEECR_P(port));
3026 e->tx_lpi_enabled = !(eeecr & LPI_MODE_EN);
3027 e->tx_lpi_timer = GET_LPI_THRESH(eeecr);
3032 static int mt753x_set_mac_eee(struct dsa_switch *ds, int port,
3033 struct ethtool_eee *e)
3035 struct mt7530_priv *priv = ds->priv;
3036 u32 set, mask = LPI_THRESH_MASK | LPI_MODE_EN;
3038 if (e->tx_lpi_timer > 0xFFF)
3041 set = SET_LPI_THRESH(e->tx_lpi_timer);
3042 if (!e->tx_lpi_enabled)
3043 /* Force LPI Mode without a delay */
3045 mt7530_rmw(priv, MT7530_PMEEECR_P(port), mask, set);
3050 static const struct dsa_switch_ops mt7530_switch_ops = {
3051 .get_tag_protocol = mtk_get_tag_protocol,
3052 .setup = mt753x_setup,
3053 .get_strings = mt7530_get_strings,
3054 .get_ethtool_stats = mt7530_get_ethtool_stats,
3055 .get_sset_count = mt7530_get_sset_count,
3056 .set_ageing_time = mt7530_set_ageing_time,
3057 .port_enable = mt7530_port_enable,
3058 .port_disable = mt7530_port_disable,
3059 .port_change_mtu = mt7530_port_change_mtu,
3060 .port_max_mtu = mt7530_port_max_mtu,
3061 .port_stp_state_set = mt7530_stp_state_set,
3062 .port_pre_bridge_flags = mt7530_port_pre_bridge_flags,
3063 .port_bridge_flags = mt7530_port_bridge_flags,
3064 .port_set_mrouter = mt7530_port_set_mrouter,
3065 .port_bridge_join = mt7530_port_bridge_join,
3066 .port_bridge_leave = mt7530_port_bridge_leave,
3067 .port_fdb_add = mt7530_port_fdb_add,
3068 .port_fdb_del = mt7530_port_fdb_del,
3069 .port_fdb_dump = mt7530_port_fdb_dump,
3070 .port_mdb_add = mt7530_port_mdb_add,
3071 .port_mdb_del = mt7530_port_mdb_del,
3072 .port_vlan_filtering = mt7530_port_vlan_filtering,
3073 .port_vlan_add = mt7530_port_vlan_add,
3074 .port_vlan_del = mt7530_port_vlan_del,
3075 .port_mirror_add = mt753x_port_mirror_add,
3076 .port_mirror_del = mt753x_port_mirror_del,
3077 .phylink_validate = mt753x_phylink_validate,
3078 .phylink_mac_link_state = mt753x_phylink_mac_link_state,
3079 .phylink_mac_config = mt753x_phylink_mac_config,
3080 .phylink_mac_an_restart = mt753x_phylink_mac_an_restart,
3081 .phylink_mac_link_down = mt753x_phylink_mac_link_down,
3082 .phylink_mac_link_up = mt753x_phylink_mac_link_up,
3083 .get_mac_eee = mt753x_get_mac_eee,
3084 .set_mac_eee = mt753x_set_mac_eee,
3087 static const struct mt753x_info mt753x_table[] = {
3090 .sw_setup = mt7530_setup,
3091 .phy_read = mt7530_phy_read,
3092 .phy_write = mt7530_phy_write,
3093 .pad_setup = mt7530_pad_clk_setup,
3094 .phy_mode_supported = mt7530_phy_mode_supported,
3095 .mac_port_validate = mt7530_mac_port_validate,
3096 .mac_port_get_state = mt7530_phylink_mac_link_state,
3097 .mac_port_config = mt7530_mac_config,
3101 .sw_setup = mt7530_setup,
3102 .phy_read = mt7530_phy_read,
3103 .phy_write = mt7530_phy_write,
3104 .pad_setup = mt7530_pad_clk_setup,
3105 .phy_mode_supported = mt7530_phy_mode_supported,
3106 .mac_port_validate = mt7530_mac_port_validate,
3107 .mac_port_get_state = mt7530_phylink_mac_link_state,
3108 .mac_port_config = mt7530_mac_config,
3112 .sw_setup = mt7531_setup,
3113 .phy_read = mt7531_ind_phy_read,
3114 .phy_write = mt7531_ind_phy_write,
3115 .pad_setup = mt7531_pad_setup,
3116 .cpu_port_config = mt7531_cpu_port_config,
3117 .phy_mode_supported = mt7531_phy_mode_supported,
3118 .mac_port_validate = mt7531_mac_port_validate,
3119 .mac_port_get_state = mt7531_phylink_mac_link_state,
3120 .mac_port_config = mt7531_mac_config,
3121 .mac_pcs_an_restart = mt7531_sgmii_restart_an,
3122 .mac_pcs_link_up = mt7531_sgmii_link_up_force,
3126 static const struct of_device_id mt7530_of_match[] = {
3127 { .compatible = "mediatek,mt7621", .data = &mt753x_table[ID_MT7621], },
3128 { .compatible = "mediatek,mt7530", .data = &mt753x_table[ID_MT7530], },
3129 { .compatible = "mediatek,mt7531", .data = &mt753x_table[ID_MT7531], },
3132 MODULE_DEVICE_TABLE(of, mt7530_of_match);
3135 mt7530_probe(struct mdio_device *mdiodev)
3137 struct mt7530_priv *priv;
3138 struct device_node *dn;
3140 dn = mdiodev->dev.of_node;
3142 priv = devm_kzalloc(&mdiodev->dev, sizeof(*priv), GFP_KERNEL);
3146 priv->ds = devm_kzalloc(&mdiodev->dev, sizeof(*priv->ds), GFP_KERNEL);
3150 priv->ds->dev = &mdiodev->dev;
3151 priv->ds->num_ports = DSA_MAX_PORTS;
3153 /* Use medatek,mcm property to distinguish hardware type that would
3154 * casues a little bit differences on power-on sequence.
3156 priv->mcm = of_property_read_bool(dn, "mediatek,mcm");
3158 dev_info(&mdiodev->dev, "MT7530 adapts as multi-chip module\n");
3160 priv->rstc = devm_reset_control_get(&mdiodev->dev, "mcm");
3161 if (IS_ERR(priv->rstc)) {
3162 dev_err(&mdiodev->dev, "Couldn't get our reset line\n");
3163 return PTR_ERR(priv->rstc);
3167 /* Get the hardware identifier from the devicetree node.
3168 * We will need it for some of the clock and regulator setup.
3170 priv->info = of_device_get_match_data(&mdiodev->dev);
3174 /* Sanity check if these required device operations are filled
3177 if (!priv->info->sw_setup || !priv->info->pad_setup ||
3178 !priv->info->phy_read || !priv->info->phy_write ||
3179 !priv->info->phy_mode_supported ||
3180 !priv->info->mac_port_validate ||
3181 !priv->info->mac_port_get_state || !priv->info->mac_port_config)
3184 priv->id = priv->info->id;
3186 if (priv->id == ID_MT7530) {
3187 priv->core_pwr = devm_regulator_get(&mdiodev->dev, "core");
3188 if (IS_ERR(priv->core_pwr))
3189 return PTR_ERR(priv->core_pwr);
3191 priv->io_pwr = devm_regulator_get(&mdiodev->dev, "io");
3192 if (IS_ERR(priv->io_pwr))
3193 return PTR_ERR(priv->io_pwr);
3196 /* Not MCM that indicates switch works as the remote standalone
3197 * integrated circuit so the GPIO pin would be used to complete
3198 * the reset, otherwise memory-mapped register accessing used
3199 * through syscon provides in the case of MCM.
3202 priv->reset = devm_gpiod_get_optional(&mdiodev->dev, "reset",
3204 if (IS_ERR(priv->reset)) {
3205 dev_err(&mdiodev->dev, "Couldn't get our reset line\n");
3206 return PTR_ERR(priv->reset);
3210 priv->bus = mdiodev->bus;
3211 priv->dev = &mdiodev->dev;
3212 priv->ds->priv = priv;
3213 priv->ds->ops = &mt7530_switch_ops;
3214 mutex_init(&priv->reg_mutex);
3215 dev_set_drvdata(&mdiodev->dev, priv);
3217 return dsa_register_switch(priv->ds);
3221 mt7530_remove(struct mdio_device *mdiodev)
3223 struct mt7530_priv *priv = dev_get_drvdata(&mdiodev->dev);
3226 ret = regulator_disable(priv->core_pwr);
3229 "Failed to disable core power: %d\n", ret);
3231 ret = regulator_disable(priv->io_pwr);
3233 dev_err(priv->dev, "Failed to disable io pwr: %d\n",
3237 mt7530_free_irq(priv);
3239 dsa_unregister_switch(priv->ds);
3240 mutex_destroy(&priv->reg_mutex);
3243 static struct mdio_driver mt7530_mdio_driver = {
3244 .probe = mt7530_probe,
3245 .remove = mt7530_remove,
3248 .of_match_table = mt7530_of_match,
3252 mdio_module_driver(mt7530_mdio_driver);
3254 MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>");
3255 MODULE_DESCRIPTION("Driver for Mediatek MT7530 Switch");
3256 MODULE_LICENSE("GPL");