1 // SPDX-License-Identifier: GPL-2.0+
24 #include <dt-bindings/net/qca-ar803x.h>
34 #define AT803X_SFC_POLARITY_REVERSAL		BIT(1)
40 #define AT803X_SS_SPEED_100			1
59 #define AT803X_INTR_ENABLE_POLARITY_CHANGED	BIT(1)
67 #define AT803X_SMART_SPEED_BYPASS_TIMER		BIT(1)
73 #define AT803X_CDT_STATUS_STAT_SHORT		1
104 #define AT803X_PSSR				0x11	/*PHY-Specific Status Register*/
145 #define AT803X_CLK_OUT_25MHZ_DSP		1
160 #define AT803X_CLK_OUT_STRENGTH_HALF		1
190 #define AT803X_PAGE_COPPER			1
194 #define AT803X_DISABLE_SMARTEEE			BIT(1)
246 #define QCA808X_MASTER_SLAVE_SEED_ENABLE	BIT(1)
272 #define QCA808X_CDT_STATUS_STAT_NORMAL		1
417 	context->bmcr = phy_read(phydev, MII_BMCR);  in at803x_context_save()
418 	context->advertise = phy_read(phydev, MII_ADVERTISE);  in at803x_context_save()
419 	context->control1000 = phy_read(phydev, MII_CTRL1000);  in at803x_context_save()
420 	context->int_enable = phy_read(phydev, AT803X_INTR_ENABLE);  in at803x_context_save()
421 	context->smart_speed = phy_read(phydev, AT803X_SMART_SPEED);  in at803x_context_save()
422 	context->led_control = phy_read(phydev, AT803X_LED_CONTROL);  in at803x_context_save()
429 	phy_write(phydev, MII_BMCR, context->bmcr);  in at803x_context_restore()
430 	phy_write(phydev, MII_ADVERTISE, context->advertise);  in at803x_context_restore()
431 	phy_write(phydev, MII_CTRL1000, context->control1000);  in at803x_context_restore()
432 	phy_write(phydev, AT803X_INTR_ENABLE, context->int_enable);  in at803x_context_restore()
433 	phy_write(phydev, AT803X_SMART_SPEED, context->smart_speed);  in at803x_context_restore()
434 	phy_write(phydev, AT803X_LED_CONTROL, context->led_control);  in at803x_context_restore()
442 	if (wol->wolopts & WAKE_MAGIC) {  in at803x_set_wol()
443 		struct net_device *ndev = phydev->attached_dev;  in at803x_set_wol()
453 			return -ENODEV;  in at803x_set_wol()
455 		mac = (const u8 *) ndev->dev_addr;  in at803x_set_wol()
458 			return -EINVAL;  in at803x_set_wol()
462 				      mac[(i * 2) + 1] | (mac[(i * 2)] << 8));  in at803x_set_wol()
510 	wol->supported = WAKE_MAGIC;  in at803x_get_wol()
511 	wol->wolopts = 0;  in at803x_get_wol()
518 		wol->wolopts |= WAKE_MAGIC;  in at803x_get_wol()
539 	struct at803x_priv *priv = phydev->priv;  in at803x_get_stat()
552 		priv->stats[i] += val;  in at803x_get_stat()
553 		ret = priv->stats[i];  in at803x_get_stat()
613 	return (val & AT803X_DEBUG_RGMII_1V8) ? 1 : 0;  in at803x_rgmii_reg_get_voltage_sel()
629 	.of_match = of_match_ptr("vddio-regulator"),
642 	.of_match = of_match_ptr("vddh-regulator"),
643 	.n_voltages = 1,
652 	struct at803x_priv *priv = phydev->priv;  in at8031_register_regulators()
653 	struct device *dev = &phydev->mdio.dev;  in at8031_register_regulators()
659 	priv->vddio_rdev = devm_regulator_register(dev, &vddio_desc, &config);  in at8031_register_regulators()
660 	if (IS_ERR(priv->vddio_rdev)) {  in at8031_register_regulators()
662 		return PTR_ERR(priv->vddio_rdev);  in at8031_register_regulators()
665 	priv->vddh_rdev = devm_regulator_register(dev, &vddh_desc, &config);  in at8031_register_regulators()
666 	if (IS_ERR(priv->vddh_rdev)) {  in at8031_register_regulators()
668 		return PTR_ERR(priv->vddh_rdev);  in at8031_register_regulators()
690 	sfp_parse_support(phydev->sfp_bus, id, sfp_support, interfaces);  in at803x_sfp_insert()
691 	/* Some modules support 10G modes as well as others we support.  in at803x_sfp_insert()
692 	 * Mask out non-supported modes so the correct interface is picked.  in at803x_sfp_insert()
697 		dev_err(&phydev->mdio.dev, "incompatible SFP module inserted\n");  in at803x_sfp_insert()
698 		return -EINVAL;  in at803x_sfp_insert()
701 	iface = sfp_select_interface(phydev->sfp_bus, sfp_support);  in at803x_sfp_insert()
703 	/* Only 1000Base-X is supported by AR8031/8033 as the downstream SerDes  in at803x_sfp_insert()
706 	 * interface do default to and function in 1000Base-X mode, so just  in at803x_sfp_insert()
711 		dev_warn(&phydev->mdio.dev, "module may not function if 1000Base-X not supported\n");  in at803x_sfp_insert()
713 		return -EINVAL;  in at803x_sfp_insert()
726 	struct device_node *node = phydev->mdio.dev.of_node;  in at803x_parse_dt()
727 	struct at803x_priv *priv = phydev->priv;  in at803x_parse_dt()
728 	u32 freq, strength, tw;  in at803x_parse_dt()  local
735 	if (of_property_read_bool(node, "qca,disable-smarteee"))  in at803x_parse_dt()
736 		priv->flags |= AT803X_DISABLE_SMARTEEE;  in at803x_parse_dt()
738 	if (of_property_read_bool(node, "qca,disable-hibernation-mode"))  in at803x_parse_dt()
739 		priv->flags |= AT803X_DISABLE_HIBERNATION_MODE;  in at803x_parse_dt()
741 	if (!of_property_read_u32(node, "qca,smarteee-tw-us-1g", &tw)) {  in at803x_parse_dt()
742 		if (!tw || tw > 255) {  in at803x_parse_dt()
743 			phydev_err(phydev, "invalid qca,smarteee-tw-us-1g\n");  in at803x_parse_dt()
744 			return -EINVAL;  in at803x_parse_dt()
746 		priv->smarteee_lpi_tw_1g = tw;  in at803x_parse_dt()
749 	if (!of_property_read_u32(node, "qca,smarteee-tw-us-100m", &tw)) {  in at803x_parse_dt()
750 		if (!tw || tw > 255) {  in at803x_parse_dt()
751 			phydev_err(phydev, "invalid qca,smarteee-tw-us-100m\n");  in at803x_parse_dt()
752 			return -EINVAL;  in at803x_parse_dt()
754 		priv->smarteee_lpi_tw_100m = tw;  in at803x_parse_dt()
757 	ret = of_property_read_u32(node, "qca,clk-out-frequency", &freq);  in at803x_parse_dt()
773 			phydev_err(phydev, "invalid qca,clk-out-frequency\n");  in at803x_parse_dt()
774 			return -EINVAL;  in at803x_parse_dt()
777 		priv->clk_25m_reg |= FIELD_PREP(AT803X_CLK_OUT_MASK, sel);  in at803x_parse_dt()
778 		priv->clk_25m_mask |= AT803X_CLK_OUT_MASK;  in at803x_parse_dt()
791 		if (phydev->drv->phy_id == ATH8030_PHY_ID ||  in at803x_parse_dt()
792 		    phydev->drv->phy_id == ATH8035_PHY_ID) {  in at803x_parse_dt()
793 			priv->clk_25m_reg &= AT8035_CLK_OUT_MASK;  in at803x_parse_dt()
794 			priv->clk_25m_mask &= AT8035_CLK_OUT_MASK;  in at803x_parse_dt()
798 	ret = of_property_read_u32(node, "qca,clk-out-strength", &strength);  in at803x_parse_dt()
800 		priv->clk_25m_mask |= AT803X_CLK_OUT_STRENGTH_MASK;  in at803x_parse_dt()
803 			priv->clk_25m_reg |= AT803X_CLK_OUT_STRENGTH_FULL;  in at803x_parse_dt()
806 			priv->clk_25m_reg |= AT803X_CLK_OUT_STRENGTH_HALF;  in at803x_parse_dt()
809 			priv->clk_25m_reg |= AT803X_CLK_OUT_STRENGTH_QUARTER;  in at803x_parse_dt()
812 			phydev_err(phydev, "invalid qca,clk-out-strength\n");  in at803x_parse_dt()
813 			return -EINVAL;  in at803x_parse_dt()
820 	if (phydev->drv->phy_id == ATH8031_PHY_ID) {  in at803x_parse_dt()
821 		if (of_property_read_bool(node, "qca,keep-pll-enabled"))  in at803x_parse_dt()
822 			priv->flags |= AT803X_KEEP_PLL_ENABLED;  in at803x_parse_dt()
828 		priv->vddio = devm_regulator_get_optional(&phydev->mdio.dev,  in at803x_parse_dt()
830 		if (IS_ERR(priv->vddio)) {  in at803x_parse_dt()
832 			return PTR_ERR(priv->vddio);  in at803x_parse_dt()
835 		/* Only AR8031/8033 support 1000Base-X for SFP modules */  in at803x_parse_dt()
846 	struct device *dev = &phydev->mdio.dev;  in at803x_probe()
852 		return -ENOMEM;  in at803x_probe()
854 	phydev->priv = priv;  in at803x_probe()
860 	if (priv->vddio) {  in at803x_probe()
861 		ret = regulator_enable(priv->vddio);  in at803x_probe()
866 	if (phydev->drv->phy_id == ATH8031_PHY_ID) {  in at803x_probe()
882 			priv->is_1000basex = true;  in at803x_probe()
886 			priv->is_fiber = true;  in at803x_probe()
901 	if (priv->vddio)  in at803x_probe()
902 		regulator_disable(priv->vddio);  in at803x_probe()
909 	struct at803x_priv *priv = phydev->priv;  in at803x_remove()
911 	if (priv->vddio)  in at803x_remove()
912 		regulator_disable(priv->vddio);  in at803x_remove()
917 	struct at803x_priv *priv = phydev->priv;  in at803x_get_features()
924 	if (phydev->drv->phy_id == QCA8081_PHY_ID) {  in at803x_get_features()
929 		linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, phydev->supported,  in at803x_get_features()
933 	if (phydev->drv->phy_id != ATH8031_PHY_ID)  in at803x_get_features()
942 	 * to 1 even when operating in copper TP mode.  in at803x_get_features()
947 	if (!priv->is_1000basex)  in at803x_get_features()
949 				   phydev->supported);  in at803x_get_features()
956 	struct at803x_priv *priv = phydev->priv;  in at803x_smarteee_config()
960 	if (priv->flags & AT803X_DISABLE_SMARTEEE)  in at803x_smarteee_config()
965 	if (priv->smarteee_lpi_tw_1g) {  in at803x_smarteee_config()
967 		val |= priv->smarteee_lpi_tw_1g << 8;  in at803x_smarteee_config()
969 	if (priv->smarteee_lpi_tw_100m) {  in at803x_smarteee_config()
971 		val |= priv->smarteee_lpi_tw_100m;  in at803x_smarteee_config()
988 	struct at803x_priv *priv = phydev->priv;  in at803x_clk_out_config()
990 	if (!priv->clk_25m_mask)  in at803x_clk_out_config()
994 			      priv->clk_25m_mask, priv->clk_25m_reg);  in at803x_clk_out_config()
999 	struct at803x_priv *priv = phydev->priv;  in at8031_pll_config()
1004 	if (priv->flags & AT803X_KEEP_PLL_ENABLED)  in at8031_pll_config()
1014 	struct at803x_priv *priv = phydev->priv;  in at803x_hibernation_mode_config()
1019 	if (!(priv->flags & AT803X_DISABLE_HIBERNATION_MODE))  in at803x_hibernation_mode_config()
1028 	struct at803x_priv *priv = phydev->priv;  in at803x_config_init()
1031 	if (phydev->drv->phy_id == ATH8031_PHY_ID) {  in at803x_config_init()
1038 					priv->is_fiber ? AT803X_PAGE_FIBER :  in at803x_config_init()
1054 	if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID ||  in at803x_config_init()
1055 	    phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID)  in at803x_config_init()
1062 	if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID ||  in at803x_config_init()
1063 	    phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)  in at803x_config_init()
1102 	struct at803x_priv *priv = phydev->priv;  in at803x_config_intr()
1108 	if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {  in at803x_config_intr()
1119 		if (priv->is_fiber) {  in at803x_config_intr()
1172 	if (phydev->state == PHY_NOLINK && phydev->mdio.reset_gpio) {  in at803x_link_change_notify()
1177 		phy_device_reset(phydev, 1);  in at803x_link_change_notify()
1178 		msleep(1);  in at803x_link_change_notify()
1180 		msleep(1);  in at803x_link_change_notify()
1192 	/* Read the AT8035 PHY-Specific Status register, which indicates the  in at803x_read_specific_status()
1208 		if (phydev->drv->phy_id == QCA8081_PHY_ID)  in at803x_read_specific_status()
1215 			phydev->speed = SPEED_10;  in at803x_read_specific_status()
1218 			phydev->speed = SPEED_100;  in at803x_read_specific_status()
1221 			phydev->speed = SPEED_1000;  in at803x_read_specific_status()
1224 			phydev->speed = SPEED_2500;  in at803x_read_specific_status()
1228 			phydev->duplex = DUPLEX_FULL;  in at803x_read_specific_status()
1230 			phydev->duplex = DUPLEX_HALF;  in at803x_read_specific_status()
1233 			phydev->mdix = ETH_TP_MDI_X;  in at803x_read_specific_status()
1235 			phydev->mdix = ETH_TP_MDI;  in at803x_read_specific_status()
1239 			phydev->mdix_ctrl = ETH_TP_MDI;  in at803x_read_specific_status()
1242 			phydev->mdix_ctrl = ETH_TP_MDI_X;  in at803x_read_specific_status()
1245 			phydev->mdix_ctrl = ETH_TP_MDI_AUTO;  in at803x_read_specific_status()
1255 	struct at803x_priv *priv = phydev->priv;  in at803x_read_status()
1256 	int err, old_link = phydev->link;  in at803x_read_status()
1258 	if (priv->is_1000basex)  in at803x_read_status()
1267 	if (phydev->autoneg == AUTONEG_ENABLE && old_link && phydev->link)  in at803x_read_status()
1270 	phydev->speed = SPEED_UNKNOWN;  in at803x_read_status()
1271 	phydev->duplex = DUPLEX_UNKNOWN;  in at803x_read_status()
1272 	phydev->pause = 0;  in at803x_read_status()
1273 	phydev->asym_pause = 0;  in at803x_read_status()
1283 	if (phydev->autoneg == AUTONEG_ENABLE && phydev->autoneg_complete)  in at803x_read_status()
1314 	struct at803x_priv *priv = phydev->priv;  in at803x_config_aneg()
1317 	ret = at803x_config_mdix(phydev, phydev->mdix_ctrl);  in at803x_config_aneg()
1325 	if (ret == 1) {  in at803x_config_aneg()
1331 	if (priv->is_1000basex)  in at803x_config_aneg()
1334 	/* Do not restart auto-negotiation by setting ret to 0 defautly,  in at803x_config_aneg()
1339 	if (phydev->drv->phy_id == QCA8081_PHY_ID) {  in at803x_config_aneg()
1345 		if (phydev->autoneg == AUTONEG_DISABLE)  in at803x_config_aneg()
1348 		if (linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, phydev->advertising))  in at803x_config_aneg()
1388 		      FIELD_PREP(AT803X_SMART_SPEED_RETRY_LIMIT_MASK, cnt - 2);  in at803x_set_downshift()
1397 		return -EINVAL;  in at803x_set_downshift()
1406 	if (ret == 1)  in at803x_set_downshift()
1415 	switch (tuna->id) {  in at803x_get_tunable()
1419 		return -EOPNOTSUPP;  in at803x_get_tunable()
1426 	switch (tuna->id) {  in at803x_set_tunable()
1430 		return -EOPNOTSUPP;  in at803x_set_tunable()
1494 	if (phydev->drv->phy_id == QCA8081_PHY_ID)  in at803x_cdt_start()
1510 	if (phydev->drv->phy_id == QCA8081_PHY_ID)  in at803x_cdt_wait_for_completion()
1555 	return 1;  in at803x_cable_test_one_pair()
1565 	if (phydev->phy_id == ATH9331_PHY_ID ||  in at803x_cable_test_get_status()
1566 	    phydev->phy_id == ATH8032_PHY_ID ||  in at803x_cable_test_get_status()
1567 	    phydev->phy_id == QCA9561_PHY_ID)  in at803x_cable_test_get_status()
1576 	 * auto-negotiating. Starting the test will restart the AN  in at803x_cable_test_get_status()
1581 	while (pair_mask && retries--) {  in at803x_cable_test_get_status()
1600 	/* Enable auto-negotiation, but advertise no capabilities, no link  in at803x_cable_test_start()
1601 	 * will be established. A restart of the auto-negotiation is not  in at803x_cable_test_start()
1606 	if (phydev->phy_id != ATH9331_PHY_ID &&  in at803x_cable_test_start()
1607 	    phydev->phy_id != ATH8032_PHY_ID &&  in at803x_cable_test_start()
1608 	    phydev->phy_id != QCA9561_PHY_ID)  in at803x_cable_test_start()
1619 	switch_revision = phydev->dev_flags & QCA8K_DEVFLAGS_REVISION_MASK;  in qca83xx_config_init()
1622 	case 1:  in qca83xx_config_init()
1644 	if (phydev->drv->phy_id == QCA8327_A_PHY_ID ||  in qca83xx_config_init()
1645 	    phydev->drv->phy_id == QCA8327_B_PHY_ID)  in qca83xx_config_init()
1658 	if (phydev->drv->phy_id == QCA8337_PHY_ID)  in qca83xx_link_change_notify()
1662 	if (phydev->state == PHY_RUNNING) {  in qca83xx_link_change_notify()
1663 		if (phydev->speed == SPEED_100)  in qca83xx_link_change_notify()
1679 	if (!phydev->suspended)  in qca83xx_resume()
1689 	 * restart auto-negotiation. Wait for reset to complete.  in qca83xx_resume()
1696 	msleep(1);  in qca83xx_resume()
1709 	if (phydev->drv->phy_id == QCA8337_PHY_ID) {  in qca83xx_suspend()
1825 	linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, phydev->lp_advertising,  in qca808x_read_status()
1836 	if (phydev->link) {  in qca808x_read_status()
1837 		if (phydev->speed == SPEED_2500)  in qca808x_read_status()
1838 			phydev->interface = PHY_INTERFACE_MODE_2500BASEX;  in qca808x_read_status()
1840 			phydev->interface = PHY_INTERFACE_MODE_SGMII;  in qca808x_read_status()
1849 		if (phydev->master_slave_state == MASTER_SLAVE_STATE_ERR) {  in qca808x_read_status()
1916 		return -EINVAL;  in qca808x_cdt_fault_length()
1931 	 * 1. disable hibernation.  in qca808x_cable_test_start()
1945 	/* Force 1000base-T needs to configure PMA/PMD and MII_BMCR */  in qca808x_cable_test_start()
1946 	phydev->duplex = DUPLEX_FULL;  in qca808x_cable_test_start()
1947 	phydev->speed = SPEED_1000;  in qca808x_cable_test_start()
2102 	.name			= "Qualcomm Atheros AR9331 built-in PHY",
2119 	.name			= "Qualcomm Atheros QCA9561 built-in PHY",
2150 	/* QCA8327-A from switch QCA8327-AL1A */
2153 	.name			= "Qualcomm Atheros 8327-A internal PHY",
2166 	/* QCA8327-B from switch QCA8327-BL1A */
2169 	.name			= "Qualcomm Atheros 8327-B internal PHY",