1 // SPDX-License-Identifier: GPL-2.0+
3 #include <linux/phy.h>
60  * when the copper cable is unplugged, the PHY enters into hibernation mode in about 10s.
70 #define QCA808X_MMD7_LED_CTRL(x)		(0x8078 - ((x) * 2))
73 #define QCA808X_MMD7_LED_FORCE_CTRL(x)		(0x8079 - ((x) * 2))
90 MODULE_DESCRIPTION("Qualcomm Atheros QCA808X PHY driver");
150 	return (phydev->master_slave_get == MASTER_SLAVE_CFG_MASTER_FORCE) ||  in qca808x_is_prefer_master()
151 		(phydev->master_slave_get == MASTER_SLAVE_CFG_MASTER_PREFERRED);  in qca808x_is_prefer_master()
156 	return linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, phydev->supported);  in qca808x_has_fast_retrain_or_slave_seed()
172 	unsigned long *possible = phydev->possible_interfaces;  in qca808x_fill_possible_interfaces()
182 	struct device *dev = &phydev->mdio.dev;  in qca808x_probe()
187 		return -ENOMEM;  in qca808x_probe()
189 	/* Init LED polarity mode to -1 */  in qca808x_probe()
190 	priv->led_polarity_mode = -1;  in qca808x_probe()
192 	phydev->priv = priv;  in qca808x_probe()
199 	struct qca808x_priv *priv = phydev->priv;  in qca808x_config_init()
202 	/* Default to LED Active High if active-low not in DT */  in qca808x_config_init()
203 	if (priv->led_polarity_mode == -1) {  in qca808x_config_init()
235 			/* Enable seed and configure lower ramdom seed to make phy  in qca808x_config_init()
261 	linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, phydev->lp_advertising,  in qca808x_read_status()
275 	if (phydev->link) {  in qca808x_read_status()
276 		if (phydev->speed == SPEED_2500)  in qca808x_read_status()
277 			phydev->interface = PHY_INTERFACE_MODE_2500BASEX;  in qca808x_read_status()
279 			phydev->interface = PHY_INTERFACE_MODE_SGMII;  in qca808x_read_status()
281 		/* generate seed as a lower random value to make PHY linked as SLAVE easily,  in qca808x_read_status()
286 		 * the corner case where the link partner is also the qca8081 PHY and the seed  in qca808x_read_status()
291 			if (phydev->master_slave_state == MASTER_SLAVE_STATE_ERR ||  in qca808x_read_status()
323 	 * 2. force PHY working in MDI mode.  in qca808x_cable_test_start()
324 	 * 3. for PHY working in 1000BaseT.  in qca808x_cable_test_start()
336 	/* Force 1000base-T needs to configure PMA/PMD and MII_BMCR */  in qca808x_cable_test_start()
337 	phydev->duplex = DUPLEX_FULL;  in qca808x_cable_test_start()
338 	phydev->speed = SPEED_1000;  in qca808x_cable_test_start()
367 	 * but it is supported by qca808x PHY, so we add it here  in qca808x_get_features()
370 	linkmode_set_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, phydev->supported);  in qca808x_get_features()
377 		linkmode_clear_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, phydev->supported);  in qca808x_get_features()
394 	if (phydev->autoneg == AUTONEG_DISABLE)  in qca808x_config_aneg()
397 	if (linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, phydev->advertising))  in qca808x_config_aneg()
411 	 * the interface device address is always phy address added by 1.  in qca808x_link_change_notify()
413 	mdiobus_c45_modify_changed(phydev->mdio.bus, phydev->mdio.addr + 1,  in qca808x_link_change_notify()
416 				   phydev->link ? QCA8081_PHY_FIFO_RSTN : 0);  in qca808x_link_change_notify()
441 		return -EOPNOTSUPP;  in qca808x_led_parse_netdev()
456 		return -EINVAL;  in qca808x_led_hw_control_enable()
468 		return -EINVAL;  in qca808x_led_hw_is_supported()
480 		return -EINVAL;  in qca808x_led_hw_control_set()
515 		return -EINVAL;  in qca808x_led_hw_control_get()
519 		return -EINVAL;  in qca808x_led_hw_control_get()
549 		return -EINVAL;  in qca808x_led_hw_control_reset()
564 		return -EINVAL;  in qca808x_led_brightness_set()
583 		return -EINVAL;  in qca808x_led_blink_set()
592 	struct qca808x_priv *priv = phydev->priv;  in qca808x_led_polarity_set()
602 			return -EINVAL;  in qca808x_led_polarity_set()
606 	/* PHY polarity is global and can't be set per LED.  in qca808x_led_polarity_set()
610 	if (priv->led_polarity_mode >= 0 &&  in qca808x_led_polarity_set()
611 	    priv->led_polarity_mode != active_low) {  in qca808x_led_polarity_set()
612 		phydev_err(phydev, "PHY polarity is global. Mismatched polarity on different LED\n");  in qca808x_led_polarity_set()
613 		return -EINVAL;  in qca808x_led_polarity_set()
616 	/* Save the last PHY polarity mode */  in qca808x_led_polarity_set()
617 	priv->led_polarity_mode = active_low;  in qca808x_led_polarity_set()