diff --git a/target/linux/rockchip/armv8/config-6.6 b/target/linux/rockchip/armv8/config-6.6
index 187a1bb670..6a1cc94bf7 100644
--- a/target/linux/rockchip/armv8/config-6.6
+++ b/target/linux/rockchip/armv8/config-6.6
@@ -552,6 +552,7 @@ CONFIG_RATIONAL=y
 # CONFIG_RAVE_SP_CORE is not set
 CONFIG_RCU_TRACE=y
 CONFIG_REALTEK_PHY=y
+CONFIG_REALTEK_PHY_HWMON=y
 CONFIG_REGMAP=y
 CONFIG_REGMAP_I2C=y
 CONFIG_REGMAP_IRQ=y