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authorHeiner Kallweit <hkallweit1@gmail.com>2018-07-02 08:08:13 +0200
committerDavid S. Miller <davem@davemloft.net>2018-07-02 22:45:59 +0900
commitcf87915cb9f873742135e786d12d42a35eea7538 (patch)
treee23f97c51deb00aa998d0b6d138204fdf2df3d5d /drivers/net/phy/realtek.c
parent9868c0b2eb18470a91d6f0f0df318738a50554e2 (diff)
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: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/phy/realtek.c')
-rw-r--r--drivers/net/phy/realtek.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/net/phy/realtek.c b/drivers/net/phy/realtek.c
index 7b516e5d4f7f..f8f127831a92 100644
--- a/drivers/net/phy/realtek.c
+++ b/drivers/net/phy/realtek.c
@@ -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;
@@ -221,6 +230,14 @@ static struct phy_driver realtek_drvs[] = {
.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",
.phy_id_mask = 0x001fffff,