diff --git a/lichee/linux-4.9/arch/arm/boot/dts/Makefile b/lichee/linux-4.9/arch/arm/boot/dts/Makefile
index fd9c386c4..5414b36cd 100644
--- a/lichee/linux-4.9/arch/arm/boot/dts/Makefile
+++ b/lichee/linux-4.9/arch/arm/boot/dts/Makefile
@@ -836,7 +836,8 @@ dtb-$(CONFIG_ARCH_SUN8IW6P1) += \
 	sun8iw6p1-soc.dtb
 dtb-$(CONFIG_ARCH_SUN8IW15P1) += \
 	sun8iw15p1-soc.dtb \
-	sun8iw15p1-mandolin-perf1.dtb
+	sun8iw15p1-mandolin-perf1.dtb\
+	sun8iw15p1-mandolin-pv1.dtb
 dtb-$(CONFIG_ARCH_TANGO) += \
 	tango4-vantage-1172.dtb
 dtb-$(CONFIG_ARCH_TEGRA_2x_SOC) += \
diff --git a/target/allwinner/mandolin-pv1/config-4.9 b/target/allwinner/mandolin-pv1/config-4.9
index c783f676a..6144c7d14 100644
--- a/target/allwinner/mandolin-pv1/config-4.9
+++ b/target/allwinner/mandolin-pv1/config-4.9
@@ -117,7 +117,7 @@ CONFIG_CFG80211_DEVELOPER_WARNINGS=y
 # CONFIG_CFG80211_INTERNAL_REGDB is not set
 # CONFIG_CFG80211_REG_CELLULAR_HINTS is not set
 # CONFIG_CFG80211_REG_RELAX_NO_IR is not set
-# CONFIG_CFG80211_WEXT is not set
+CONFIG_CFG80211_WEXT=y
 CONFIG_CLKDEV_LOOKUP=y
 CONFIG_CLKSRC_MMIO=y
 CONFIG_CLKSRC_OF=y