x86: panther: Add PCI and video configuration

Add a PCI node to the device tree. This allows SPI flash and SATA to work
correctly. Also configure the video to come up correctly even though there
is no keyboard.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

arch/x86/dts/chromebox_panther.dts

@@ -42,6 +42,16 @@
 		stdout-path = "/serial";
 	};
 
+	pci {
+		compatible = "pci-x86";
+		#address-cells = <3>;
+		#size-cells = <2>;
+		u-boot,dm-pre-reloc;
+		ranges = <0x02000000 0x0 0xe0000000 0xe0000000 0 0x10000000
+			0x42000000 0x0 0xd0000000 0xd0000000 0 0x10000000
+			0x01000000 0x0 0x1000 0x1000 0 0xf000>;
+	};
+
 	spi {
 		#address-cells = <1>;
 		#size-cells = <0>;

include/configs/chromebox_panther.h

@@ -14,4 +14,6 @@
 /* Avoid a warning in the Realtek Ethernet driver */
 #define CONFIG_SYS_CACHELINE_SIZE 16
 
+#define CONFIG_VGA_AS_SINGLE_DEVICE
+
 #endif	/* __CONFIG_H */