diff --git a/arch/x86/dts/Makefile b/arch/x86/dts/Makefile
index ca2eab3..f86514c 100644
--- a/arch/x86/dts/Makefile
+++ b/arch/x86/dts/Makefile
@@ -3,7 +3,8 @@ dtb-y += chromebook_link.dtb \
 	crownbay.dtb \
 	galileo.dtb \
 	minnowmax.dtb \
-	qemu-x86.dtb
+	qemu-x86_i440fx.dtb \
+	qemu-x86_q35.dtb
 
 targets += $(dtb-y)
 
diff --git a/arch/x86/dts/qemu-x86_i440fx.dts b/arch/x86/dts/qemu-x86_i440fx.dts
new file mode 100644
index 0000000..4cf843b
--- /dev/null
+++ b/arch/x86/dts/qemu-x86_i440fx.dts
@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+/dts-v1/;
+
+/include/ "skeleton.dtsi"
+/include/ "serial.dtsi"
+
+/ {
+	model = "QEMU x86 (I440FX)";
+	compatible = "qemu,x86";
+
+	config {
+		silent_console = <0>;
+	};
+
+	chosen {
+		stdout-path = "/serial";
+	};
+
+	pci {
+		compatible = "pci-x86";
+		#address-cells = <3>;
+		#size-cells = <2>;
+		u-boot,dm-pre-reloc;
+		ranges = <0x02000000 0x0 0xc0000000 0xc0000000 0 0x10000000
+			0x42000000 0x0 0xd0000000 0xd0000000 0 0x10000000
+			0x01000000 0x0 0x2000 0x2000 0 0xe000>;
+	};
+
+};
diff --git a/arch/x86/dts/qemu-x86.dts b/arch/x86/dts/qemu-x86_q35.dts
similarity index 95%
rename from arch/x86/dts/qemu-x86.dts
rename to arch/x86/dts/qemu-x86_q35.dts
index f1291b5..6c89283 100644
--- a/arch/x86/dts/qemu-x86.dts
+++ b/arch/x86/dts/qemu-x86_q35.dts
@@ -10,7 +10,7 @@
 /include/ "serial.dtsi"
 
 / {
-	model = "QEMU x86";
+	model = "QEMU x86 (Q35)";
 	compatible = "qemu,x86";
 
 	config {
diff --git a/board/coreboot/coreboot/Kconfig b/board/coreboot/coreboot/Kconfig
index 69e3437..3ff64f4 100644
--- a/board/coreboot/coreboot/Kconfig
+++ b/board/coreboot/coreboot/Kconfig
@@ -23,7 +23,7 @@ config SYS_CONFIG_NAME
 
 config DEFAULT_DEVICE_TREE
 	string "Board Device Tree Source (dts) file"
-	default "qemu-x86"
+	default "qemu-x86_i440fx"
 	help
 	  This option selects the board Device Tree Source (dts) file in
 	  arch/x86/dts/ directory to be used to build U-Boot for coreboot.
diff --git a/configs/qemu-x86_defconfig b/configs/qemu-x86_defconfig
index 4509d52..0959a98 100644
--- a/configs/qemu-x86_defconfig
+++ b/configs/qemu-x86_defconfig
@@ -1,10 +1,9 @@
 CONFIG_X86=y
 CONFIG_VENDOR_EMULATION=y
+CONFIG_DEFAULT_DEVICE_TREE="qemu-x86_i440fx"
 CONFIG_TARGET_QEMU_X86=y
 CONFIG_CMD_NET=y
 CONFIG_OF_CONTROL=y
-CONFIG_OF_SEPARATE=y
-CONFIG_DEFAULT_DEVICE_TREE="qemu-x86"
 CONFIG_VIDEO_VESA=y
 CONFIG_FRAMEBUFFER_SET_VESA_MODE=y
 CONFIG_FRAMEBUFFER_VESA_MODE_111=y
diff --git a/doc/README.x86 b/doc/README.x86
index 0726205..c19f4a0 100644
--- a/doc/README.x86
+++ b/doc/README.x86
@@ -40,7 +40,7 @@ configuration during the 'make menuconfig' process.
 x86 architecture  --->
 	...
 	(qemu-x86) Board configuration file
-	(qemu-x86) Board Device Tree Source (dts) file
+	(qemu-x86_i440fx) Board Device Tree Source (dts) file
 	(0x01920000) Board specific Cache-As-RAM (CAR) address
 	(0x4000) Board specific Cache-As-RAM (CAR) size
 
@@ -186,6 +186,14 @@ To build u-boot.rom for QEMU x86 targets, just simply run
 $ make qemu-x86_defconfig
 $ make all
 
+Note this default configuration will build a U-Boot for the QEMU x86 i440FX
+board. To build a U-Boot against QEMU x86 Q35 board, you can change the build
+configuration during the 'make menuconfig' process like below:
+
+Device Tree Control  --->
+	...
+	(qemu-x86_q35) Default Device Tree for DT control
+
 Test with coreboot
 ------------------
 For testing U-Boot as the coreboot payload, there are things that need be paid