diff --git a/sys/conf/Makefile.arm b/sys/conf/Makefile.arm
index cc827e88c44f..31dc542e8e6c 100644
--- a/sys/conf/Makefile.arm
+++ b/sys/conf/Makefile.arm
@@ -30,9 +30,9 @@ S=	../../..
 .endif
 .include "$S/conf/kern.pre.mk"
 
-INCLUDES+= -I$S/contrib/libfdt -I$S/gnu/dts/include 
+INCLUDES+= -I$S/contrib/libfdt -I$S/contrib/device-tree/include
 
-LINUX_DTS_VERSION!=	       make -C $S/gnu/dts/ -V LINUX_DTS_VERSION
+LINUX_DTS_VERSION!=	awk '/freebsd,dts-version/ { sub(/;$$/,"", $$NF); print $$NF }' $S/dts/freebsd-compatible.dts
 CFLAGS += -DLINUX_DTS_VERSION=\"${LINUX_DTS_VERSION}\"
 
 .if !defined(DEBUG) && !defined(PROFLEVEL)
diff --git a/sys/conf/Makefile.arm64 b/sys/conf/Makefile.arm64
index 08b5a5fc90b7..c7951872ca2d 100644
--- a/sys/conf/Makefile.arm64
+++ b/sys/conf/Makefile.arm64
@@ -25,7 +25,7 @@ S=	../../..
 .endif
 .include "$S/conf/kern.pre.mk"
 
-INCLUDES+= -I$S/contrib/libfdt -I$S/gnu/dts/include
+INCLUDES+= -I$S/contrib/libfdt -I$S/contrib/device-tree/include
 
 # Use a custom SYSTEM_LD command to generate the elf kernel, so we can
 # set the text segment start address, and also strip the "arm mapping
diff --git a/sys/conf/dtb.build.mk b/sys/conf/dtb.build.mk
index edaa6db225c8..8d106615822f 100644
--- a/sys/conf/dtb.build.mk
+++ b/sys/conf/dtb.build.mk
@@ -32,7 +32,7 @@ DTB+=	${_dts:T:R:S/$/.dtb/}
 DTBO=${DTSO:T:R:S/$/.dtbo/}
 
 .SUFFIXES: .dtb .dts .dtbo .dtso
-.PATH.dts: ${SYSDIR}/gnu/dts/${MACHINE} ${SYSDIR}/dts/${MACHINE}
+.PATH.dts: ${SYSDIR}/contrib/device-tree/src/${MACHINE} ${SYSDIR}/dts/${MACHINE}
 .PATH.dtso: ${SYSDIR}/dts/${MACHINE}/overlays
 
 .export DTC ECHO
diff --git a/sys/conf/files.arm64 b/sys/conf/files.arm64
index 8ee422f23e26..fb001f95a672 100644
--- a/sys/conf/files.arm64
+++ b/sys/conf/files.arm64
@@ -34,7 +34,7 @@ arm/allwinner/aw_dwc3.c		optional	aw_dwc3 fdt
 arm/allwinner/aw_gpio.c		optional	gpio aw_gpio fdt
 arm/allwinner/aw_mmc.c		optional	mmc aw_mmc fdt | mmccam aw_mmc fdt
 arm/allwinner/aw_nmi.c		optional	aw_nmi fdt \
-	compile-with "${NORMAL_C} -I$S/gnu/dts/include"
+	compile-with "${NORMAL_C} -I$S/contrib/device-tree/include"
 arm/allwinner/aw_pwm.c		optional	aw_pwm fdt
 arm/allwinner/aw_rsb.c		optional	aw_rsb fdt
 arm/allwinner/aw_rtc.c		optional	aw_rtc fdt
diff --git a/sys/dts/freebsd-compatible.dts b/sys/dts/freebsd-compatible.dts
index d977cb2b30c8..3621ac45901a 100644
--- a/sys/dts/freebsd-compatible.dts
+++ b/sys/dts/freebsd-compatible.dts
@@ -1,3 +1,3 @@
 / {
-	freebsd,dts-version = LINUX_DTS_VERSION;
+	freebsd,dts-version = "5.9";
 };
diff --git a/sys/tools/fdt/make_dtb.sh b/sys/tools/fdt/make_dtb.sh
index 5c5968711661..09d0b3bd9f42 100755
--- a/sys/tools/fdt/make_dtb.sh
+++ b/sys/tools/fdt/make_dtb.sh
@@ -20,11 +20,9 @@ fi
 : "${ECHO:=echo}"
 : "${CPP:=cpp}"
 
-LINUX_DTS_VERSION=$(make -C $S/gnu/dts -V LINUX_DTS_VERSION)
-
 for d in ${dts}; do
     dtb="${dtb_path}/$(basename "$d" .dts).dtb"
     ${ECHO} "converting $d -> $dtb"
-    ${CPP} -DLINUX_DTS_VERSION=\"${LINUX_DTS_VERSION}\" -P -x assembler-with-cpp -I "$S/gnu/dts/include" -I "$S/dts/${MACHINE}" -I "$S/gnu/dts/${MACHINE}" -I "$S/gnu/dts/" -include "$d" -include "$S/dts/freebsd-compatible.dts" /dev/null |
-	${DTC} -@ -O dtb -o "$dtb" -b 0 -p 1024 -i "$S/dts/${MACHINE}" -i "$S/gnu/dts/${MACHINE}" -i "$S/gnu/dts/"
+    ${CPP} -P -x assembler-with-cpp -I "$S/contrib/device-tree/include" -I "$S/dts/${MACHINE}" -I "$S/contrib/device-tree/src/${MACHINE}" -I "$S/contrib/device-tree/src/" -include "$d" -include "$S/dts/freebsd-compatible.dts" /dev/null |
+	${DTC} -@ -O dtb -o "$dtb" -b 0 -p 1024 -i "$S/dts/${MACHINE}" -i "$S/contrib/device-tree/src/${MACHINE}" -i "$S/contrib/device-tree/src/"
 done
diff --git a/sys/tools/fdt/make_dtbo.sh b/sys/tools/fdt/make_dtbo.sh
index edc5d7fd8d41..1fcab87a6465 100755
--- a/sys/tools/fdt/make_dtbo.sh
+++ b/sys/tools/fdt/make_dtbo.sh
@@ -23,6 +23,6 @@ fi
 for d in ${dtso}; do
     dtb="${dtbo_path}/$(basename "$d" .dtso).dtbo"
     ${ECHO} "converting $d -> $dtb"
-    ${CPP} -P -x assembler-with-cpp -I "$S/gnu/dts/include" -I "$S/dts/${MACHINE}" -I "$S/gnu/dts/${MACHINE}" -include "$d" /dev/null |
-	${DTC} -@ -O dtb -o "$dtb" -i "$S/dts/${MACHINE}" -i "$S/gnu/dts/${MACHINE}"
+    ${CPP} -P -x assembler-with-cpp -I "$S/contrib/device-tree/include" -I "$S/dts/${MACHINE}" -I "$S/contrib/device-tree/src/${MACHINE}" -include "$d" /dev/null |
+	${DTC} -@ -O dtb -o "$dtb" -i "$S/dts/${MACHINE}" -i "$S/contrib/device-tree/src/${MACHINE}"
 done