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Commit 3447cf2e authored by Shengzhou Liu's avatar Shengzhou Liu Committed by David S. Miller
Browse files

net/phy: Add support for Realtek RTL8211F 



RTL8211F has different register definitions from RTL8211E.
Specially it needs to enable TXDLY in case of RGMII.

Signed-off-by: default avatarShengzhou Liu <Shengzhou.Liu@freescale.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent fa433354

drivers/net/phy/realtek.c

+67 −1
Original line number Diff line number Diff line
@@ -22,9 +22,13 @@ 
#define RTL821x_INER		0x12

#define RTL821x_INER_INIT	0x6400

#define RTL821x_INSR		0x13



#define RTL8211E_INER_LINK_STATUS 0x400



#define RTL8211F_INER_LINK_STATUS 0x0010

#define RTL8211F_INSR		0x1d

#define RTL8211F_PAGE_SELECT	0x1f

#define RTL8211F_TX_DELAY	0x100



MODULE_DESCRIPTION("Realtek PHY driver");

MODULE_AUTHOR("Johnson Leung");

MODULE_LICENSE("GPL");
@@ -38,6 +42,18 @@ static int rtl821x_ack_interrupt(struct phy_device *phydev) 
	return (err < 0) ? err : 0;

}



static int rtl8211f_ack_interrupt(struct phy_device *phydev)

{

	int err;



	phy_write(phydev, RTL8211F_PAGE_SELECT, 0xa43);

	err = phy_read(phydev, RTL8211F_INSR);

	/* restore to default page 0 */

	phy_write(phydev, RTL8211F_PAGE_SELECT, 0x0);



	return (err < 0) ? err : 0;

}



static int rtl8211b_config_intr(struct phy_device *phydev)

{

	int err;
@@ -64,6 +80,41 @@ static int rtl8211e_config_intr(struct phy_device *phydev) 
	return err;

}



static int rtl8211f_config_intr(struct phy_device *phydev)

{

	int err;



	if (phydev->interrupts == PHY_INTERRUPT_ENABLED)

		err = phy_write(phydev, RTL821x_INER,

				RTL8211F_INER_LINK_STATUS);

	else

		err = phy_write(phydev, RTL821x_INER, 0);



	return err;

}



static int rtl8211f_config_init(struct phy_device *phydev)

{

	int ret;

	u16 reg;



	ret = genphy_config_init(phydev);

	if (ret < 0)

		return ret;



	if (phydev->interface == PHY_INTERFACE_MODE_RGMII) {

		/* enable TXDLY */

		phy_write(phydev, RTL8211F_PAGE_SELECT, 0xd08);

		reg = phy_read(phydev, 0x11);

		reg |= RTL8211F_TX_DELAY;

		phy_write(phydev, 0x11, reg);

		/* restore to default page 0 */

		phy_write(phydev, RTL8211F_PAGE_SELECT, 0x0);

	}



	return 0;

}



static struct phy_driver realtek_drvs[] = {

	{

		.phy_id         = 0x00008201,
@@ -98,6 +149,20 @@ static struct phy_driver realtek_drvs[] = { 
		.suspend	= genphy_suspend,

		.resume		= genphy_resume,

		.driver		= { .owner = THIS_MODULE,},

	}, {

		.phy_id		= 0x001cc916,

		.name		= "RTL8211F Gigabit Ethernet",

		.phy_id_mask	= 0x001fffff,

		.features	= PHY_GBIT_FEATURES,

		.flags		= PHY_HAS_INTERRUPT,

		.config_aneg	= &genphy_config_aneg,

		.config_init	= &rtl8211f_config_init,

		.read_status	= &genphy_read_status,

		.ack_interrupt	= &rtl8211f_ack_interrupt,

		.config_intr	= &rtl8211f_config_intr,

		.suspend	= genphy_suspend,

		.resume		= genphy_resume,

		.driver		= { .owner = THIS_MODULE },

	},

};
@@ -106,6 +171,7 @@ module_phy_driver(realtek_drvs); 
static struct mdio_device_id __maybe_unused realtek_tbl[] = {

	{ 0x001cc912, 0x001fffff },

	{ 0x001cc915, 0x001fffff },

	{ 0x001cc916, 0x001fffff },

	{ }

};