1 // SPDX-License-Identifier: GPL-2.0+
3  *	drivers/net/phy/broadcom.c
13 #include "bcm-phy-lib.h"
15 #include <linux/phy.h>
20 	((phydev)->drv->phy_id & (phydev)->drv->phy_id_mask)
23 	((phydev)->drv->phy_id & ~((phydev)->drv->phy_id_mask))
25 MODULE_DESCRIPTION("Broadcom PHY driver");
37 	if (phydev->dev_flags & PHY_BRCM_EN_MASTER_MODE) {  in bcm54210e_config_init()
53 	if (!(phydev->dev_flags & PHY_BRCM_RX_REFCLK_UNUSED)) {  in bcm54612e_config_init()
71 	/* handling PHY's internal RX clock delay */  in bcm54xx_config_clock_delay()
74 	if (phydev->interface == PHY_INTERFACE_MODE_RGMII ||  in bcm54xx_config_clock_delay()
75 	    phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) {  in bcm54xx_config_clock_delay()
76 		/* Disable RGMII RXC-RXD skew */  in bcm54xx_config_clock_delay()
79 	if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID ||  in bcm54xx_config_clock_delay()
80 	    phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) {  in bcm54xx_config_clock_delay()
81 		/* Enable RGMII RXC-RXD skew */  in bcm54xx_config_clock_delay()
89 	/* handling PHY's internal TX clock delay */  in bcm54xx_config_clock_delay()
91 	if (phydev->interface == PHY_INTERFACE_MODE_RGMII ||  in bcm54xx_config_clock_delay()
92 	    phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) {  in bcm54xx_config_clock_delay()
96 	if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID ||  in bcm54xx_config_clock_delay()
97 	    phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) {  in bcm54xx_config_clock_delay()
154 		/* Clear bit 9 to fix a phy interop issue. */  in bcm54xx_phydsp_config()
160 		if (phydev->drv->phy_id == PHY_ID_BCM50610) {  in bcm54xx_phydsp_config()
194 	/* Abort if we are using an untested phy. */  in bcm54xx_adjust_rxrefclk()
217 		if (phydev->dev_flags & PHY_BRCM_RX_REFCLK_UNUSED) {  in bcm54xx_adjust_rxrefclk()
226 	if (!clk125en || (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE))  in bcm54xx_adjust_rxrefclk()
231 	if (phydev->dev_flags & PHY_BRCM_DIS_TXCRXC_NOENRGY) {  in bcm54xx_adjust_rxrefclk()
248 	if (!clk125en || (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE))  in bcm54xx_adjust_rxrefclk()
281 	    (phydev->dev_flags & PHY_BRCM_CLEAR_RGMII_MODE))  in bcm54xx_config_init()
295 		/* For BCM54810, we need to disable BroadR-Reach function */  in bcm54xx_config_init()
342 	/* Disable BroadR-Reach function. */  in bcm54811_config_init()
353 	if (!(phydev->dev_flags & PHY_BRCM_RX_REFCLK_UNUSED)) {  in bcm54811_config_init()
370 	if (phydev->dev_flags & PHY_BCM_FLAGS_MODE_1000BX) {  in bcm5482_config_init()
381 		 * Enable SGMII slave mode and auto-detection  in bcm5482_config_init()
406 		 * Select 1000BASE-X register set (primary SerDes)  in bcm5482_config_init()
421 		 * Auto-negotiation doesn't seem to work quite right  in bcm5482_config_init()
426 		phydev->autoneg = AUTONEG_DISABLE;  in bcm5482_config_init()
427 		phydev->speed = SPEED_1000;  in bcm5482_config_init()
428 		phydev->duplex = DUPLEX_FULL;  in bcm5482_config_init()
440 	if (phydev->dev_flags & PHY_BCM_FLAGS_MODE_1000BX) {  in bcm5482_read_status()
442 		 * Only link status matters for 1000Base-X mode, so force  in bcm5482_read_status()
443 		 * 1000 Mbit/s full-duplex status  in bcm5482_read_status()
445 		if (phydev->link) {  in bcm5482_read_status()
446 			phydev->speed = SPEED_1000;  in bcm5482_read_status()
447 			phydev->duplex = DUPLEX_FULL;  in bcm5482_read_status()
456 	struct device_node *np = phydev->mdio.dev.of_node;  in bcm5481_config_aneg()
465 	if (of_property_read_bool(np, "enet-phy-lane-swap")) {  in bcm5481_config_aneg()
466 		/* Lane Swap - Undocumented register...magic! */  in bcm5481_config_aneg()
484 	/* The PHY is strapped in RGMII-fiber mode when INTERF_SEL[1:0]  in bcm54616s_probe()
485 	 * is 01b, and the link between PHY and its link partner can be  in bcm54616s_probe()
486 	 * either 1000Base-X or 100Base-FX.  in bcm54616s_probe()
487 	 * RGMII-1000Base-X is properly supported, but RGMII-100Base-FX  in bcm54616s_probe()
496 		/* Bit 0 of the SerDes 100-FX Control register, when set  in bcm54616s_probe()
497 		 * to 1, sets the MII/RGMII -> 100BASE-FX configuration.  in bcm54616s_probe()
498 		 * When this bit is set to 0, it sets the GMII/RGMII ->  in bcm54616s_probe()
499 		 * 1000BASE-X configuration.  in bcm54616s_probe()
502 			phydev->dev_flags |= PHY_BCM_FLAGS_MODE_1000BX;  in bcm54616s_probe()
513 	if (phydev->dev_flags & PHY_BCM_FLAGS_MODE_1000BX)  in bcm54616s_config_aneg()
528 	if (phydev->dev_flags & PHY_BCM_FLAGS_MODE_1000BX)  in bcm54616s_read_status()
551 	/* Reset the PHY to bring it to a known state. */  in brcm_fet_config_init()
602 	if (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE) {  in brcm_fet_config_init()
637 	if (phydev->interrupts == PHY_INTERRUPT_ENABLED)  in brcm_fet_config_intr()
654 	priv = devm_kzalloc(&phydev->mdio.dev, sizeof(*priv), GFP_KERNEL);  in bcm53xx_phy_probe()
656 		return -ENOMEM;  in bcm53xx_phy_probe()
658 	phydev->priv = priv;  in bcm53xx_phy_probe()
660 	priv->stats = devm_kcalloc(&phydev->mdio.dev,  in bcm53xx_phy_probe()
663 	if (!priv->stats)  in bcm53xx_phy_probe()
664 		return -ENOMEM;  in bcm53xx_phy_probe()
672 	struct bcm53xx_phy_priv *priv = phydev->priv;  in bcm53xx_phy_get_stats()
674 	bcm_phy_get_stats(phydev, priv->stats, stats, data);  in bcm53xx_phy_get_stats()