drivers/net/phy/realtek.c - filogic/uboot - Gitiles

 // SPDX-License-Identifier: GPL-2.0+
 /*
  * RealTek PHY drivers
  *
  * Copyright 2010-2011, 2015 Freescale Semiconductor, Inc.
  * author Andy Fleming
  * Copyright 2016 Karsten Merker <merker@debian.org>
  */
 #include <linux/bitops.h>
 #include <phy.h>
 #include <linux/delay.h>

 #define PHY_RTL8211x_FORCE_MASTER BIT(1)
 #define PHY_RTL8211F_FORCE_EEE_RXC_ON BIT(3)
 #define PHY_RTL8201F_S700_RMII_TIMINGS BIT(4)

 #define PHY_AUTONEGOTIATE_TIMEOUT 5000

 /* RTL8211x 1000BASE-T Control Register */
 #define MIIM_RTL8211x_CTRL1000T_MSCE BIT(12);
 #define MIIM_RTL8211x_CTRL1000T_MASTER BIT(11);

 /* RTL8211x PHY Status Register */
 #define MIIM_RTL8211x_PHY_STATUS       0x11
 #define MIIM_RTL8211x_PHYSTAT_SPEED    0xc000
 #define MIIM_RTL8211x_PHYSTAT_GBIT     0x8000
 #define MIIM_RTL8211x_PHYSTAT_100      0x4000
 #define MIIM_RTL8211x_PHYSTAT_DUPLEX   0x2000
 #define MIIM_RTL8211x_PHYSTAT_SPDDONE  0x0800
 #define MIIM_RTL8211x_PHYSTAT_LINK     0x0400

 /* RTL8211x PHY Interrupt Enable Register */
 #define MIIM_RTL8211x_PHY_INER         0x12
 #define MIIM_RTL8211x_PHY_INTR_ENA     0x9f01
 #define MIIM_RTL8211x_PHY_INTR_DIS     0x0000

 /* RTL8211x PHY Interrupt Status Register */
 #define MIIM_RTL8211x_PHY_INSR         0x13

 /* RTL8211F PHY Status Register */
 #define MIIM_RTL8211F_PHY_STATUS       0x1a
 #define MIIM_RTL8211F_AUTONEG_ENABLE   0x1000
 #define MIIM_RTL8211F_PHYSTAT_SPEED    0x0030
 #define MIIM_RTL8211F_PHYSTAT_GBIT     0x0020
 #define MIIM_RTL8211F_PHYSTAT_100      0x0010
 #define MIIM_RTL8211F_PHYSTAT_DUPLEX   0x0008
 #define MIIM_RTL8211F_PHYSTAT_SPDDONE  0x0800
 #define MIIM_RTL8211F_PHYSTAT_LINK     0x0004

 #define MIIM_RTL8211E_CONFREG		0x1c
 #define MIIM_RTL8211E_CTRL_DELAY	BIT(13)
 #define MIIM_RTL8211E_TX_DELAY		BIT(12)
 #define MIIM_RTL8211E_RX_DELAY		BIT(11)

 #define MIIM_RTL8211E_EXT_PAGE_SELECT  0x1e

 #define MIIM_RTL8211F_PAGE_SELECT      0x1f
 #define MIIM_RTL8211F_TX_DELAY		0x100
 #define MIIM_RTL8211F_RX_DELAY		0x8
 #define MIIM_RTL8211F_LCR		0x10

 #define RTL8201F_RMSR			0x10

 #define RMSR_RX_TIMING_SHIFT		BIT(2)
 #define RMSR_RX_TIMING_MASK		GENMASK(7, 4)
 #define RMSR_RX_TIMING_VAL		0x4
 #define RMSR_TX_TIMING_SHIFT		BIT(3)
 #define RMSR_TX_TIMING_MASK		GENMASK(11, 8)
 #define RMSR_TX_TIMING_VAL		0x5

 static int rtl8211f_phy_extread(struct phy_device *phydev, int addr,
 				int devaddr, int regnum)
 {
 	int oldpage = phy_read(phydev, MDIO_DEVAD_NONE,
 			       MIIM_RTL8211F_PAGE_SELECT);
 	int val;

 	phy_write(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211F_PAGE_SELECT, devaddr);
 	val = phy_read(phydev, MDIO_DEVAD_NONE, regnum);
 	phy_write(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211F_PAGE_SELECT, oldpage);

 	return val;
 }

 static int rtl8211f_phy_extwrite(struct phy_device *phydev, int addr,
 				 int devaddr, int regnum, u16 val)
 {
 	int oldpage = phy_read(phydev, MDIO_DEVAD_NONE,
 			       MIIM_RTL8211F_PAGE_SELECT);

 	phy_write(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211F_PAGE_SELECT, devaddr);
 	phy_write(phydev, MDIO_DEVAD_NONE, regnum, val);
 	phy_write(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211F_PAGE_SELECT, oldpage);

 	return 0;
 }

 static int rtl8211b_probe(struct phy_device *phydev)
 {
 #ifdef CONFIG_RTL8211X_PHY_FORCE_MASTER
 	phydev->flags |= PHY_RTL8211x_FORCE_MASTER;
 #endif

 	return 0;
 }

 static int rtl8211e_probe(struct phy_device *phydev)
 {
 	return 0;
 }

 static int rtl8211f_probe(struct phy_device *phydev)
 {
 #ifdef CONFIG_RTL8211F_PHY_FORCE_EEE_RXC_ON
 	phydev->flags |= PHY_RTL8211F_FORCE_EEE_RXC_ON;
 #endif

 	return 0;
 }

 static int rtl8210f_probe(struct phy_device *phydev)
 {
 #ifdef CONFIG_RTL8201F_PHY_S700_RMII_TIMINGS
 	phydev->flags |= PHY_RTL8201F_S700_RMII_TIMINGS;
 #endif

 	return 0;
 }

 /* RealTek RTL8211x */
 static int rtl8211x_config(struct phy_device *phydev)
 {
 	phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, BMCR_RESET);

 	/* mask interrupt at init; if the interrupt is
 	 * needed indeed, it should be explicitly enabled
 	 */
 	phy_write(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211x_PHY_INER,
 		  MIIM_RTL8211x_PHY_INTR_DIS);

 	if (phydev->flags & PHY_RTL8211x_FORCE_MASTER) {
 		unsigned int reg;

 		reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_CTRL1000);
 		/* force manual master/slave configuration */
 		reg |= MIIM_RTL8211x_CTRL1000T_MSCE;
 		/* force master mode */
 		reg |= MIIM_RTL8211x_CTRL1000T_MASTER;
 		phy_write(phydev, MDIO_DEVAD_NONE, MII_CTRL1000, reg);
 	}
 	/* read interrupt status just to clear it */
 	phy_read(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211x_PHY_INER);

 	genphy_config_aneg(phydev);

 	return 0;
 }

 /* RealTek RTL8201F */
 static int rtl8201f_config(struct phy_device *phydev)
 {
 	unsigned int reg;

 	if (phydev->flags & PHY_RTL8201F_S700_RMII_TIMINGS) {
 		phy_write(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211F_PAGE_SELECT,
 			  7);
 		reg = phy_read(phydev, MDIO_DEVAD_NONE, RTL8201F_RMSR);
 		reg &= ~(RMSR_RX_TIMING_MASK | RMSR_TX_TIMING_MASK);
 		/* Set the needed Rx/Tx Timings for proper PHY operation */
 		reg |= (RMSR_RX_TIMING_VAL << RMSR_RX_TIMING_SHIFT)
 		       | (RMSR_TX_TIMING_VAL << RMSR_TX_TIMING_SHIFT);
 		phy_write(phydev, MDIO_DEVAD_NONE, RTL8201F_RMSR, reg);
 		phy_write(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211F_PAGE_SELECT,
 			  0);
 	}

 	genphy_config_aneg(phydev);

 	return 0;
 }

 static int rtl8211e_config(struct phy_device *phydev)
 {
 	int reg, val;

 	/* enable TX/RX delay for rgmii-* modes, and disable them for rgmii. */
 	switch (phydev->interface) {
 	case PHY_INTERFACE_MODE_RGMII:
 		val = MIIM_RTL8211E_CTRL_DELAY;
 		break;
 	case PHY_INTERFACE_MODE_RGMII_ID:
 		val = MIIM_RTL8211E_CTRL_DELAY | MIIM_RTL8211E_TX_DELAY |
 		      MIIM_RTL8211E_RX_DELAY;
 		break;
 	case PHY_INTERFACE_MODE_RGMII_RXID:
 		val = MIIM_RTL8211E_CTRL_DELAY | MIIM_RTL8211E_RX_DELAY;
 		break;
 	case PHY_INTERFACE_MODE_RGMII_TXID:
 		val = MIIM_RTL8211E_CTRL_DELAY | MIIM_RTL8211E_TX_DELAY;
 		break;
 	default: /* the rest of the modes imply leaving delays as is. */
 		goto default_delay;
 	}

 	phy_write(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211F_PAGE_SELECT, 7);
 	phy_write(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211E_EXT_PAGE_SELECT, 0xa4);

 	reg = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211E_CONFREG);
 	reg &= ~(MIIM_RTL8211E_TX_DELAY | MIIM_RTL8211E_RX_DELAY);
 	phy_write(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211E_CONFREG, reg | val);

 	phy_write(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211F_PAGE_SELECT, 0);

 default_delay:
 	genphy_config_aneg(phydev);

 	return 0;
 }

 static int rtl8211f_config(struct phy_device *phydev)
 {
 	u16 reg;

 	if (phydev->flags & PHY_RTL8211F_FORCE_EEE_RXC_ON) {
 		unsigned int reg;

 		reg = phy_read_mmd(phydev, MDIO_MMD_PCS, MDIO_CTRL1);
 		reg &= ~MDIO_PCS_CTRL1_CLKSTOP_EN;
 		phy_write_mmd(phydev, MDIO_MMD_PCS, MDIO_CTRL1, reg);
 	}

 	phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, BMCR_RESET);

 	phy_write(phydev, MDIO_DEVAD_NONE,
 		  MIIM_RTL8211F_PAGE_SELECT, 0xd08);
 	reg = phy_read(phydev, MDIO_DEVAD_NONE, 0x11);

 	/* enable TX-delay for rgmii-id and rgmii-txid, otherwise disable it */
 	if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID ||
 	    phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)
 		reg |= MIIM_RTL8211F_TX_DELAY;
 	else
 		reg &= ~MIIM_RTL8211F_TX_DELAY;

 	phy_write(phydev, MDIO_DEVAD_NONE, 0x11, reg);

 	/* enable RX-delay for rgmii-id and rgmii-rxid, otherwise disable it */
 	reg = phy_read(phydev, MDIO_DEVAD_NONE, 0x15);
 	if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID ||
 	    phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID)
 		reg |= MIIM_RTL8211F_RX_DELAY;
 	else
 		reg &= ~MIIM_RTL8211F_RX_DELAY;
 	phy_write(phydev, MDIO_DEVAD_NONE, 0x15, reg);

 	/* restore to default page 0 */
 	phy_write(phydev, MDIO_DEVAD_NONE,
 		  MIIM_RTL8211F_PAGE_SELECT, 0x0);

 	/* Set green LED for Link, yellow LED for Active */
 	phy_write(phydev, MDIO_DEVAD_NONE,
 		  MIIM_RTL8211F_PAGE_SELECT, 0xd04);
 	phy_write(phydev, MDIO_DEVAD_NONE, 0x10, 0x617f);
 	phy_write(phydev, MDIO_DEVAD_NONE,
 		  MIIM_RTL8211F_PAGE_SELECT, 0x0);

 	genphy_config_aneg(phydev);

 	return 0;
 }

 static int rtl8211x_parse_status(struct phy_device *phydev)
 {
 	unsigned int speed;
 	unsigned int mii_reg;

 	mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211x_PHY_STATUS);

 	if (!(mii_reg & MIIM_RTL8211x_PHYSTAT_SPDDONE)) {
 		int i = 0;

 		/* in case of timeout ->link is cleared */
 		phydev->link = 1;
 		puts("Waiting for PHY realtime link");
 		while (!(mii_reg & MIIM_RTL8211x_PHYSTAT_SPDDONE)) {
 			/* Timeout reached ? */
 			if (i > PHY_AUTONEGOTIATE_TIMEOUT) {
 				puts(" TIMEOUT !\n");
 				phydev->link = 0;
 				break;
 			}

 			if ((i++ % 1000) == 0)
 				putc('.');
 			udelay(1000);	/* 1 ms */
 			mii_reg = phy_read(phydev, MDIO_DEVAD_NONE,
 					MIIM_RTL8211x_PHY_STATUS);
 		}
 		puts(" done\n");
 		udelay(500000);	/* another 500 ms (results in faster booting) */
 	} else {
 		if (mii_reg & MIIM_RTL8211x_PHYSTAT_LINK)
 			phydev->link = 1;
 		else
 			phydev->link = 0;
 	}

 	if (mii_reg & MIIM_RTL8211x_PHYSTAT_DUPLEX)
 		phydev->duplex = DUPLEX_FULL;
 	else
 		phydev->duplex = DUPLEX_HALF;

 	speed = (mii_reg & MIIM_RTL8211x_PHYSTAT_SPEED);

 	switch (speed) {
 	case MIIM_RTL8211x_PHYSTAT_GBIT:
 		phydev->speed = SPEED_1000;
 		break;
 	case MIIM_RTL8211x_PHYSTAT_100:
 		phydev->speed = SPEED_100;
 		break;
 	default:
 		phydev->speed = SPEED_10;
 	}

 	return 0;
 }

 static int rtl8211f_parse_status(struct phy_device *phydev)
 {
 	unsigned int speed;
 	unsigned int mii_reg;
 	int i = 0;

 	phy_write(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211F_PAGE_SELECT, 0xa43);
 	mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211F_PHY_STATUS);

 	phydev->link = 1;
 	while (!(mii_reg & MIIM_RTL8211F_PHYSTAT_LINK)) {
 		if (i > PHY_AUTONEGOTIATE_TIMEOUT) {
 			puts(" TIMEOUT !\n");
 			phydev->link = 0;
 			break;
 		}

 		if ((i++ % 1000) == 0)
 			putc('.');
 		udelay(1000);
 		mii_reg = phy_read(phydev, MDIO_DEVAD_NONE,
 				   MIIM_RTL8211F_PHY_STATUS);
 	}

 	if (mii_reg & MIIM_RTL8211F_PHYSTAT_DUPLEX)
 		phydev->duplex = DUPLEX_FULL;
 	else
 		phydev->duplex = DUPLEX_HALF;

 	speed = (mii_reg & MIIM_RTL8211F_PHYSTAT_SPEED);

 	switch (speed) {
 	case MIIM_RTL8211F_PHYSTAT_GBIT:
 		phydev->speed = SPEED_1000;
 		break;
 	case MIIM_RTL8211F_PHYSTAT_100:
 		phydev->speed = SPEED_100;
 		break;
 	default:
 		phydev->speed = SPEED_10;
 	}

 	return 0;
 }

 static int rtl8211x_startup(struct phy_device *phydev)
 {
 	int ret;

 	/* Read the Status (2x to make sure link is right) */
 	ret = genphy_update_link(phydev);
 	if (ret)
 		return ret;

 	return rtl8211x_parse_status(phydev);
 }

 static int rtl8211f_startup(struct phy_device *phydev)
 {
 	int ret;

 	/* Read the Status (2x to make sure link is right) */
 	ret = genphy_update_link(phydev);
 	if (ret)
 		return ret;
 	/* Read the Status (2x to make sure link is right) */

 	return rtl8211f_parse_status(phydev);
 }

 /* Support for RTL8211B PHY */
 U_BOOT_PHY_DRIVER(rtl8211b) = {
 	.name = "RealTek RTL8211B",
 	.uid = 0x1cc912,
 	.mask = 0xffffff,
 	.features = PHY_GBIT_FEATURES,
 	.probe = &rtl8211b_probe,
 	.config = &rtl8211x_config,
 	.startup = &rtl8211x_startup,
 	.shutdown = &genphy_shutdown,
 };

 /* Support for RTL8211E-VB-CG, RTL8211E-VL-CG and RTL8211EG-VB-CG PHYs */
 U_BOOT_PHY_DRIVER(rtl8211e) = {
 	.name = "RealTek RTL8211E",
 	.uid = 0x1cc915,
 	.mask = 0xffffff,
 	.features = PHY_GBIT_FEATURES,
 	.probe = &rtl8211e_probe,
 	.config = &rtl8211e_config,
 	.startup = &genphy_startup,
 	.shutdown = &genphy_shutdown,
 };

 /* Support for RTL8211DN PHY */
 U_BOOT_PHY_DRIVER(rtl8211dn) = {
 	.name = "RealTek RTL8211DN",
 	.uid = 0x1cc914,
 	.mask = 0xffffff,
 	.features = PHY_GBIT_FEATURES,
 	.config = &rtl8211x_config,
 	.startup = &rtl8211x_startup,
 	.shutdown = &genphy_shutdown,
 };

 /* Support for RTL8211F PHY */
 U_BOOT_PHY_DRIVER(rtl8211f) = {
 	.name = "RealTek RTL8211F",
 	.uid = 0x1cc916,
 	.mask = 0xffffff,
 	.features = PHY_GBIT_FEATURES,
 	.probe = &rtl8211f_probe,
 	.config = &rtl8211f_config,
 	.startup = &rtl8211f_startup,
 	.shutdown = &genphy_shutdown,
 	.readext = &rtl8211f_phy_extread,
 	.writeext = &rtl8211f_phy_extwrite,
 };

 /* Support for RTL8211F-VD PHY */
 U_BOOT_PHY_DRIVER(rtl8211fvd) = {
 	.name = "RealTek RTL8211F-VD",
 	.uid = 0x1cc878,
 	.mask = 0xffffff,
 	.features = PHY_GBIT_FEATURES,
 	.probe = &rtl8211f_probe,
 	.config = &rtl8211f_config,
 	.startup = &rtl8211f_startup,
 	.shutdown = &genphy_shutdown,
 	.readext = &rtl8211f_phy_extread,
 	.writeext = &rtl8211f_phy_extwrite,
 };

 /* Support for RTL8201F PHY */
 U_BOOT_PHY_DRIVER(rtl8201f) = {
 	.name = "RealTek RTL8201F 10/100Mbps Ethernet",
 	.uid = 0x1cc816,
 	.mask = 0xffffff,
 	.features = PHY_BASIC_FEATURES,
 	.probe = &rtl8210f_probe,
 	.config = &rtl8201f_config,
 	.startup = &genphy_startup,
 	.shutdown = &genphy_shutdown,
 };
	// SPDX-License-Identifier: GPL-2.0+
	/*
	* RealTek PHY drivers
	*
	* Copyright 2010-2011, 2015 Freescale Semiconductor, Inc.
	* author Andy Fleming
	* Copyright 2016 Karsten Merker <merker@debian.org>
	*/
	#include <linux/bitops.h>
	#include <phy.h>
	#include <linux/delay.h>

	#define PHY_RTL8211x_FORCE_MASTER BIT(1)
	#define PHY_RTL8211F_FORCE_EEE_RXC_ON BIT(3)
	#define PHY_RTL8201F_S700_RMII_TIMINGS BIT(4)

	#define PHY_AUTONEGOTIATE_TIMEOUT 5000

	/* RTL8211x 1000BASE-T Control Register */
	#define MIIM_RTL8211x_CTRL1000T_MSCE BIT(12);
	#define MIIM_RTL8211x_CTRL1000T_MASTER BIT(11);

	/* RTL8211x PHY Status Register */
	#define MIIM_RTL8211x_PHY_STATUS 0x11
	#define MIIM_RTL8211x_PHYSTAT_SPEED 0xc000
	#define MIIM_RTL8211x_PHYSTAT_GBIT 0x8000
	#define MIIM_RTL8211x_PHYSTAT_100 0x4000
	#define MIIM_RTL8211x_PHYSTAT_DUPLEX 0x2000
	#define MIIM_RTL8211x_PHYSTAT_SPDDONE 0x0800
	#define MIIM_RTL8211x_PHYSTAT_LINK 0x0400

	/* RTL8211x PHY Interrupt Enable Register */
	#define MIIM_RTL8211x_PHY_INER 0x12
	#define MIIM_RTL8211x_PHY_INTR_ENA 0x9f01
	#define MIIM_RTL8211x_PHY_INTR_DIS 0x0000

	/* RTL8211x PHY Interrupt Status Register */
	#define MIIM_RTL8211x_PHY_INSR 0x13

	/* RTL8211F PHY Status Register */
	#define MIIM_RTL8211F_PHY_STATUS 0x1a
	#define MIIM_RTL8211F_AUTONEG_ENABLE 0x1000
	#define MIIM_RTL8211F_PHYSTAT_SPEED 0x0030
	#define MIIM_RTL8211F_PHYSTAT_GBIT 0x0020
	#define MIIM_RTL8211F_PHYSTAT_100 0x0010
	#define MIIM_RTL8211F_PHYSTAT_DUPLEX 0x0008
	#define MIIM_RTL8211F_PHYSTAT_SPDDONE 0x0800
	#define MIIM_RTL8211F_PHYSTAT_LINK 0x0004

	#define MIIM_RTL8211E_CONFREG 0x1c
	#define MIIM_RTL8211E_CTRL_DELAY BIT(13)
	#define MIIM_RTL8211E_TX_DELAY BIT(12)
	#define MIIM_RTL8211E_RX_DELAY BIT(11)

	#define MIIM_RTL8211E_EXT_PAGE_SELECT 0x1e

	#define MIIM_RTL8211F_PAGE_SELECT 0x1f
	#define MIIM_RTL8211F_TX_DELAY 0x100
	#define MIIM_RTL8211F_RX_DELAY 0x8
	#define MIIM_RTL8211F_LCR 0x10

	#define RTL8201F_RMSR 0x10

	#define RMSR_RX_TIMING_SHIFT BIT(2)
	#define RMSR_RX_TIMING_MASK GENMASK(7, 4)
	#define RMSR_RX_TIMING_VAL 0x4
	#define RMSR_TX_TIMING_SHIFT BIT(3)
	#define RMSR_TX_TIMING_MASK GENMASK(11, 8)
	#define RMSR_TX_TIMING_VAL 0x5

	static int rtl8211f_phy_extread(struct phy_device *phydev, int addr,
	int devaddr, int regnum)
	{
	int oldpage = phy_read(phydev, MDIO_DEVAD_NONE,
	MIIM_RTL8211F_PAGE_SELECT);
	int val;

	phy_write(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211F_PAGE_SELECT, devaddr);
	val = phy_read(phydev, MDIO_DEVAD_NONE, regnum);
	phy_write(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211F_PAGE_SELECT, oldpage);

	return val;
	}

	static int rtl8211f_phy_extwrite(struct phy_device *phydev, int addr,
	int devaddr, int regnum, u16 val)
	{
	int oldpage = phy_read(phydev, MDIO_DEVAD_NONE,
	MIIM_RTL8211F_PAGE_SELECT);

	phy_write(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211F_PAGE_SELECT, devaddr);
	phy_write(phydev, MDIO_DEVAD_NONE, regnum, val);
	phy_write(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211F_PAGE_SELECT, oldpage);

	return 0;
	}

	static int rtl8211b_probe(struct phy_device *phydev)
	{
	#ifdef CONFIG_RTL8211X_PHY_FORCE_MASTER
	phydev->flags \|= PHY_RTL8211x_FORCE_MASTER;
	#endif

	return 0;
	}

	static int rtl8211e_probe(struct phy_device *phydev)
	{
	return 0;
	}

	static int rtl8211f_probe(struct phy_device *phydev)
	{
	#ifdef CONFIG_RTL8211F_PHY_FORCE_EEE_RXC_ON
	phydev->flags \|= PHY_RTL8211F_FORCE_EEE_RXC_ON;
	#endif

	return 0;
	}

	static int rtl8210f_probe(struct phy_device *phydev)
	{
	#ifdef CONFIG_RTL8201F_PHY_S700_RMII_TIMINGS
	phydev->flags \|= PHY_RTL8201F_S700_RMII_TIMINGS;
	#endif

	return 0;
	}

	/* RealTek RTL8211x */
	static int rtl8211x_config(struct phy_device *phydev)
	{
	phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, BMCR_RESET);

	/* mask interrupt at init; if the interrupt is
	* needed indeed, it should be explicitly enabled
	*/
	phy_write(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211x_PHY_INER,
	MIIM_RTL8211x_PHY_INTR_DIS);

	if (phydev->flags & PHY_RTL8211x_FORCE_MASTER) {
	unsigned int reg;

	reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_CTRL1000);
	/* force manual master/slave configuration */
	reg \|= MIIM_RTL8211x_CTRL1000T_MSCE;
	/* force master mode */
	reg \|= MIIM_RTL8211x_CTRL1000T_MASTER;
	phy_write(phydev, MDIO_DEVAD_NONE, MII_CTRL1000, reg);
	}
	/* read interrupt status just to clear it */
	phy_read(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211x_PHY_INER);

	genphy_config_aneg(phydev);

	return 0;
	}

	/* RealTek RTL8201F */
	static int rtl8201f_config(struct phy_device *phydev)
	{
	unsigned int reg;

	if (phydev->flags & PHY_RTL8201F_S700_RMII_TIMINGS) {
	phy_write(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211F_PAGE_SELECT,
	7);
	reg = phy_read(phydev, MDIO_DEVAD_NONE, RTL8201F_RMSR);
	reg &= ~(RMSR_RX_TIMING_MASK \| RMSR_TX_TIMING_MASK);
	/* Set the needed Rx/Tx Timings for proper PHY operation */
	reg \|= (RMSR_RX_TIMING_VAL << RMSR_RX_TIMING_SHIFT)
	\| (RMSR_TX_TIMING_VAL << RMSR_TX_TIMING_SHIFT);
	phy_write(phydev, MDIO_DEVAD_NONE, RTL8201F_RMSR, reg);
	phy_write(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211F_PAGE_SELECT,
	0);
	}

	genphy_config_aneg(phydev);

	return 0;
	}

	static int rtl8211e_config(struct phy_device *phydev)
	{
	int reg, val;

	/* enable TX/RX delay for rgmii-* modes, and disable them for rgmii. */
	switch (phydev->interface) {
	case PHY_INTERFACE_MODE_RGMII:
	val = MIIM_RTL8211E_CTRL_DELAY;
	break;
	case PHY_INTERFACE_MODE_RGMII_ID:
	val = MIIM_RTL8211E_CTRL_DELAY \| MIIM_RTL8211E_TX_DELAY \|
	MIIM_RTL8211E_RX_DELAY;
	break;
	case PHY_INTERFACE_MODE_RGMII_RXID:
	val = MIIM_RTL8211E_CTRL_DELAY \| MIIM_RTL8211E_RX_DELAY;
	break;
	case PHY_INTERFACE_MODE_RGMII_TXID:
	val = MIIM_RTL8211E_CTRL_DELAY \| MIIM_RTL8211E_TX_DELAY;
	break;
	default: /* the rest of the modes imply leaving delays as is. */
	goto default_delay;
	}

	phy_write(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211F_PAGE_SELECT, 7);
	phy_write(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211E_EXT_PAGE_SELECT, 0xa4);

	reg = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211E_CONFREG);
	reg &= ~(MIIM_RTL8211E_TX_DELAY \| MIIM_RTL8211E_RX_DELAY);
	phy_write(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211E_CONFREG, reg \| val);

	phy_write(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211F_PAGE_SELECT, 0);

	default_delay:
	genphy_config_aneg(phydev);

	return 0;
	}

	static int rtl8211f_config(struct phy_device *phydev)
	{
	u16 reg;

	if (phydev->flags & PHY_RTL8211F_FORCE_EEE_RXC_ON) {
	unsigned int reg;

	reg = phy_read_mmd(phydev, MDIO_MMD_PCS, MDIO_CTRL1);
	reg &= ~MDIO_PCS_CTRL1_CLKSTOP_EN;
	phy_write_mmd(phydev, MDIO_MMD_PCS, MDIO_CTRL1, reg);
	}

	phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, BMCR_RESET);

	phy_write(phydev, MDIO_DEVAD_NONE,
	MIIM_RTL8211F_PAGE_SELECT, 0xd08);
	reg = phy_read(phydev, MDIO_DEVAD_NONE, 0x11);

	/* enable TX-delay for rgmii-id and rgmii-txid, otherwise disable it */
	if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID \|\|
	phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)
	reg \|= MIIM_RTL8211F_TX_DELAY;
	else
	reg &= ~MIIM_RTL8211F_TX_DELAY;

	phy_write(phydev, MDIO_DEVAD_NONE, 0x11, reg);

	/* enable RX-delay for rgmii-id and rgmii-rxid, otherwise disable it */
	reg = phy_read(phydev, MDIO_DEVAD_NONE, 0x15);
	if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID \|\|
	phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID)
	reg \|= MIIM_RTL8211F_RX_DELAY;
	else
	reg &= ~MIIM_RTL8211F_RX_DELAY;
	phy_write(phydev, MDIO_DEVAD_NONE, 0x15, reg);

	/* restore to default page 0 */
	phy_write(phydev, MDIO_DEVAD_NONE,
	MIIM_RTL8211F_PAGE_SELECT, 0x0);

	/* Set green LED for Link, yellow LED for Active */
	phy_write(phydev, MDIO_DEVAD_NONE,
	MIIM_RTL8211F_PAGE_SELECT, 0xd04);
	phy_write(phydev, MDIO_DEVAD_NONE, 0x10, 0x617f);
	phy_write(phydev, MDIO_DEVAD_NONE,
	MIIM_RTL8211F_PAGE_SELECT, 0x0);

	genphy_config_aneg(phydev);

	return 0;
	}

	static int rtl8211x_parse_status(struct phy_device *phydev)
	{
	unsigned int speed;
	unsigned int mii_reg;

	mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211x_PHY_STATUS);

	if (!(mii_reg & MIIM_RTL8211x_PHYSTAT_SPDDONE)) {
	int i = 0;

	/* in case of timeout ->link is cleared */
	phydev->link = 1;
	puts("Waiting for PHY realtime link");
	while (!(mii_reg & MIIM_RTL8211x_PHYSTAT_SPDDONE)) {
	/* Timeout reached ? */
	if (i > PHY_AUTONEGOTIATE_TIMEOUT) {
	puts(" TIMEOUT !\n");
	phydev->link = 0;
	break;
	}

	if ((i++ % 1000) == 0)
	putc('.');
	udelay(1000); /* 1 ms */
	mii_reg = phy_read(phydev, MDIO_DEVAD_NONE,
	MIIM_RTL8211x_PHY_STATUS);
	}
	puts(" done\n");
	udelay(500000); /* another 500 ms (results in faster booting) */
	} else {
	if (mii_reg & MIIM_RTL8211x_PHYSTAT_LINK)
	phydev->link = 1;
	else
	phydev->link = 0;
	}

	if (mii_reg & MIIM_RTL8211x_PHYSTAT_DUPLEX)
	phydev->duplex = DUPLEX_FULL;
	else
	phydev->duplex = DUPLEX_HALF;

	speed = (mii_reg & MIIM_RTL8211x_PHYSTAT_SPEED);

	switch (speed) {
	case MIIM_RTL8211x_PHYSTAT_GBIT:
	phydev->speed = SPEED_1000;
	break;
	case MIIM_RTL8211x_PHYSTAT_100:
	phydev->speed = SPEED_100;
	break;
	default:
	phydev->speed = SPEED_10;
	}

	return 0;
	}

	static int rtl8211f_parse_status(struct phy_device *phydev)
	{
	unsigned int speed;
	unsigned int mii_reg;
	int i = 0;

	phy_write(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211F_PAGE_SELECT, 0xa43);
	mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211F_PHY_STATUS);

	phydev->link = 1;
	while (!(mii_reg & MIIM_RTL8211F_PHYSTAT_LINK)) {
	if (i > PHY_AUTONEGOTIATE_TIMEOUT) {
	puts(" TIMEOUT !\n");
	phydev->link = 0;
	break;
	}

	if ((i++ % 1000) == 0)
	putc('.');
	udelay(1000);
	mii_reg = phy_read(phydev, MDIO_DEVAD_NONE,
	MIIM_RTL8211F_PHY_STATUS);
	}

	if (mii_reg & MIIM_RTL8211F_PHYSTAT_DUPLEX)
	phydev->duplex = DUPLEX_FULL;
	else
	phydev->duplex = DUPLEX_HALF;

	speed = (mii_reg & MIIM_RTL8211F_PHYSTAT_SPEED);

	switch (speed) {
	case MIIM_RTL8211F_PHYSTAT_GBIT:
	phydev->speed = SPEED_1000;
	break;
	case MIIM_RTL8211F_PHYSTAT_100:
	phydev->speed = SPEED_100;
	break;
	default:
	phydev->speed = SPEED_10;
	}

	return 0;
	}

	static int rtl8211x_startup(struct phy_device *phydev)
	{
	int ret;

	/* Read the Status (2x to make sure link is right) */
	ret = genphy_update_link(phydev);
	if (ret)
	return ret;

	return rtl8211x_parse_status(phydev);
	}

	static int rtl8211f_startup(struct phy_device *phydev)
	{
	int ret;

	/* Read the Status (2x to make sure link is right) */
	ret = genphy_update_link(phydev);
	if (ret)
	return ret;
	/* Read the Status (2x to make sure link is right) */

	return rtl8211f_parse_status(phydev);
	}

	/* Support for RTL8211B PHY */
	U_BOOT_PHY_DRIVER(rtl8211b) = {
	.name = "RealTek RTL8211B",
	.uid = 0x1cc912,
	.mask = 0xffffff,
	.features = PHY_GBIT_FEATURES,
	.probe = &rtl8211b_probe,
	.config = &rtl8211x_config,
	.startup = &rtl8211x_startup,
	.shutdown = &genphy_shutdown,
	};

	/* Support for RTL8211E-VB-CG, RTL8211E-VL-CG and RTL8211EG-VB-CG PHYs */
	U_BOOT_PHY_DRIVER(rtl8211e) = {
	.name = "RealTek RTL8211E",
	.uid = 0x1cc915,
	.mask = 0xffffff,
	.features = PHY_GBIT_FEATURES,
	.probe = &rtl8211e_probe,
	.config = &rtl8211e_config,
	.startup = &genphy_startup,
	.shutdown = &genphy_shutdown,
	};

	/* Support for RTL8211DN PHY */
	U_BOOT_PHY_DRIVER(rtl8211dn) = {
	.name = "RealTek RTL8211DN",
	.uid = 0x1cc914,
	.mask = 0xffffff,
	.features = PHY_GBIT_FEATURES,
	.config = &rtl8211x_config,
	.startup = &rtl8211x_startup,
	.shutdown = &genphy_shutdown,
	};

	/* Support for RTL8211F PHY */
	U_BOOT_PHY_DRIVER(rtl8211f) = {
	.name = "RealTek RTL8211F",
	.uid = 0x1cc916,
	.mask = 0xffffff,
	.features = PHY_GBIT_FEATURES,
	.probe = &rtl8211f_probe,
	.config = &rtl8211f_config,
	.startup = &rtl8211f_startup,
	.shutdown = &genphy_shutdown,
	.readext = &rtl8211f_phy_extread,
	.writeext = &rtl8211f_phy_extwrite,
	};

	/* Support for RTL8211F-VD PHY */
	U_BOOT_PHY_DRIVER(rtl8211fvd) = {
	.name = "RealTek RTL8211F-VD",
	.uid = 0x1cc878,
	.mask = 0xffffff,
	.features = PHY_GBIT_FEATURES,
	.probe = &rtl8211f_probe,
	.config = &rtl8211f_config,
	.startup = &rtl8211f_startup,
	.shutdown = &genphy_shutdown,
	.readext = &rtl8211f_phy_extread,
	.writeext = &rtl8211f_phy_extwrite,
	};

	/* Support for RTL8201F PHY */
	U_BOOT_PHY_DRIVER(rtl8201f) = {
	.name = "RealTek RTL8201F 10/100Mbps Ethernet",
	.uid = 0x1cc816,
	.mask = 0xffffff,
	.features = PHY_BASIC_FEATURES,
	.probe = &rtl8210f_probe,
	.config = &rtl8201f_config,
	.startup = &genphy_startup,
	.shutdown = &genphy_shutdown,
	};