@@ -726,6 +726,27 @@ static int rtl822xb_config_init(struct phy_device *phydev)
return phy_write_mmd(phydev, MDIO_MMD_VEND1, 0x6f11, 0x8020);
}
+static int rtl822xb_get_rate_matching(struct phy_device *phydev,
+ phy_interface_t iface)
+{
+ int val;
+
+ /* Only rate matching at 2500base-x */
+ if (iface != PHY_INTERFACE_MODE_2500BASEX)
+ return RATE_MATCH_NONE;
+
+ val = phy_read_mmd(phydev, MDIO_MMD_VEND1, RTL822X_VND1_SERDES_OPTION);
+ if (val < 0)
+ return val;
+
+ if ((val & RTL822X_VND1_SERDES_OPTION_MODE_MASK) ==
+ RTL822X_VND1_SERDES_OPTION_MODE_2500BASEX)
+ return RATE_MATCH_PAUSE;
+
+ /* RTL822X_VND1_SERDES_OPTION_MODE_2500BASEX_SGMII */
+ return RATE_MATCH_NONE;
+}
+
static int rtl822x_get_features(struct phy_device *phydev)
{
int val;
@@ -1091,6 +1112,7 @@ static struct phy_driver realtek_drvs[] = {
.get_features = rtl822x_get_features,
.config_aneg = rtl822x_config_aneg,
.config_init = rtl822xb_config_init,
+ .get_rate_matching = rtl822xb_get_rate_matching,
.read_status = rtl822xb_read_status,
.suspend = genphy_suspend,
.resume = rtlgen_resume,
@@ -1114,6 +1136,7 @@ static struct phy_driver realtek_drvs[] = {
.get_features = rtl822x_get_features,
.config_aneg = rtl822x_config_aneg,
.config_init = rtl822xb_config_init,
+ .get_rate_matching = rtl822xb_get_rate_matching,
.read_status = rtl822xb_read_status,
.suspend = genphy_suspend,
.resume = rtlgen_resume,
@@ -1125,6 +1148,7 @@ static struct phy_driver realtek_drvs[] = {
.get_features = rtl822x_get_features,
.config_aneg = rtl822x_config_aneg,
.config_init = rtl822xb_config_init,
+ .get_rate_matching = rtl822xb_get_rate_matching,
.read_status = rtl822xb_read_status,
.suspend = genphy_suspend,
.resume = rtlgen_resume,
@@ -1136,6 +1160,7 @@ static struct phy_driver realtek_drvs[] = {
.get_features = rtl822x_get_features,
.config_aneg = rtl822x_config_aneg,
.config_init = rtl822xb_config_init,
+ .get_rate_matching = rtl822xb_get_rate_matching,
.read_status = rtl822xb_read_status,
.suspend = genphy_suspend,
.resume = rtlgen_resume,
Uses vendor register to determine if SerDes is setup in rate-matching mode. Rate-matching only supported when SerDes is set to 2500base-x. Signed-off-by: Eric Woudstra <ericwouds@gmail.com> --- drivers/net/phy/realtek.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+)