diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 4d8a56a..221c0a7 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -46,7 +46,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += \
 	rk3368-px5-evb.dtb \
 	rk3399-evb.dtb \
 	rk3399-firefly.dtb \
-	rk3399-puma.dtb \
+	rk3399-puma-ddr1600.dtb \
 	rv1108-evb.dtb
 dtb-$(CONFIG_ARCH_MESON) += \
 	meson-gxbb-odroidc2.dtb
diff --git a/arch/arm/dts/rk3399-puma-ddr1600.dts b/arch/arm/dts/rk3399-puma-ddr1600.dts
new file mode 100644
index 0000000..31aaf70
--- /dev/null
+++ b/arch/arm/dts/rk3399-puma-ddr1600.dts
@@ -0,0 +1,11 @@
+/*
+ * (C) Copyright 2017 Theobroma Systems Design und Consulting GmbH
+ *
+ * SPDX-License-Identifier:     GPL-2.0+	X11
+ */
+
+/dts-v1/;
+
+#include "rk3399-puma.dtsi"
+#include "rk3399-sdram-ddr3-1600.dtsi"
+
diff --git a/arch/arm/dts/rk3399-puma.dts b/arch/arm/dts/rk3399-puma.dtsi
similarity index 99%
rename from arch/arm/dts/rk3399-puma.dts
rename to arch/arm/dts/rk3399-puma.dtsi
index fca14d3..1aad6c5 100644
--- a/arch/arm/dts/rk3399-puma.dts
+++ b/arch/arm/dts/rk3399-puma.dtsi
@@ -4,11 +4,8 @@
  * SPDX-License-Identifier:     GPL-2.0+	X11
  */
 
-/dts-v1/;
-
 #include <dt-bindings/pwm/pwm.h>
 #include "rk3399.dtsi"
-#include "rk3399-sdram-ddr3-1600.dtsi"
 
 / {
 	model = "Theobroma Systems RK3399-Q7 SoM";
diff --git a/configs/puma-rk3399_defconfig b/configs/puma-rk3399_defconfig
index 001686f..af528fb 100644
--- a/configs/puma-rk3399_defconfig
+++ b/configs/puma-rk3399_defconfig
@@ -8,7 +8,7 @@ CONFIG_TARGET_PUMA_RK3399=y
 CONFIG_SPL_SPI_FLASH_SUPPORT=y
 CONFIG_SPL_SPI_SUPPORT=y
 CONFIG_SPL_STACK_R_ADDR=0x80000
-CONFIG_DEFAULT_DEVICE_TREE="rk3399-puma"
+CONFIG_DEFAULT_DEVICE_TREE="rk3399-puma-ddr1600"
 CONFIG_DEBUG_UART=y
 CONFIG_FIT=y
 CONFIG_SPL_LOAD_FIT=y