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-rw-r--r--target/linux/realtek/files-5.15/drivers/net/dsa/rtl83xx/dsa.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/target/linux/realtek/files-5.15/drivers/net/dsa/rtl83xx/dsa.c b/target/linux/realtek/files-5.15/drivers/net/dsa/rtl83xx/dsa.c
index 3b5af72dd6a..0e1d64ae691 100644
--- a/target/linux/realtek/files-5.15/drivers/net/dsa/rtl83xx/dsa.c
+++ b/target/linux/realtek/files-5.15/drivers/net/dsa/rtl83xx/dsa.c
@@ -870,6 +870,8 @@ static void rtl93xx_phylink_mac_config(struct dsa_switch *ds, int port,
if (state->duplex == DUPLEX_FULL)
reg |= RTL930X_DUPLEX_MODE;
+ else
+ reg &= ~RTL930X_DUPLEX_MODE; /* Clear duplex bit otherwise */
if (priv->ports[port].phy_is_integrated)
reg &= ~RTL930X_FORCE_EN; /* Clear MAC_FORCE_EN to allow SDS-MAC link */