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Commit cf87915c authored by Heiner Kallweit's avatar Heiner Kallweit Committed by David S. Miller
Browse files

net: phy: realtek: add support for RTL8211C 

RTL8211C has an issue when operating in Gigabit slave mode, therefore
genphy driver can't be used. See also this U-boot change.
https://lists.denx.de/pipermail/u-boot/2016-March/249712.html



Add a PHY driver for this chip with the quirk to force Gigabit master
mode. As a note: This will make it impossible to connect two network
ports directly which both are driven by a RTl8211C.

Signed-off-by: default avatarHeiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 9868c0b2

drivers/net/phy/realtek.c

+17 −0
Original line number Diff line number Diff line
@@ -150,6 +150,15 @@ static int rtl8211_config_aneg(struct phy_device *phydev) 
	return 0;

}



static int rtl8211c_config_init(struct phy_device *phydev)

{

	/* RTL8211C has an issue when operating in Gigabit slave mode */

	phy_set_bits(phydev, MII_CTRL1000,

		     CTL1000_ENABLE_MASTER | CTL1000_AS_MASTER);



	return genphy_config_init(phydev);

}



static int rtl8211f_config_init(struct phy_device *phydev)

{

	int ret;
@@ -220,6 +229,14 @@ static struct phy_driver realtek_drvs[] = { 
		.write_mmd	= &genphy_write_mmd_unsupported,

		.suspend	= rtl8211b_suspend,

		.resume		= rtl8211b_resume,

	}, {

		.phy_id		= 0x001cc913,

		.name		= "RTL8211C Gigabit Ethernet",

		.phy_id_mask	= 0x001fffff,

		.features	= PHY_GBIT_FEATURES,

		.config_init	= rtl8211c_config_init,

		.read_mmd	= &genphy_read_mmd_unsupported,

		.write_mmd	= &genphy_write_mmd_unsupported,

	}, {

		.phy_id		= 0x001cc914,

		.name		= "RTL8211DN Gigabit Ethernet",