arm: dts: board: leave resources for uboot

Change-Id: Ie36c4e4b735b78aab89f8e8d1cc0045fde8fca74
Signed-off-by: Jacob Chen <jacob2.chen@rock-chips.com>

arch/arm/boot/dts/rk3288-miniarm.dts

@@ -424,10 +424,6 @@
 	status = "okay";
 };
 
-&uart1 {
-	status = "okay";
-};
-
 &uart2 {
 	status = "okay";
 };

arch/arm/boot/dts/rk3288.dtsi

@@ -266,6 +266,10 @@
 		dma-unusable@fe000000 {
 			reg = <0xfe000000 0x1000000>;
 		};
+
+        uboot@50000000 {
+			reg = <0x50000000 0x10000000>;
+		};
 	};
 
 	xin24m: oscillator {
@@ -1536,6 +1540,12 @@
 		interrupts = <GIC_PPI 9 0xf04>;
 	};
 
+    uboot {
+		compatible = "rockchip,uboot";
+		clocks = <&cru PCLK_TIMER>, <&cru SCLK_UART1>, <&cru PCLK_UART1>;
+		clock-names = "pclk_timer","uart1_sclk", "uart1_pclk";
+	};
+
 	pinctrl: pinctrl {
 		compatible = "rockchip,rk3288-pinctrl";
 		rockchip,grf = <&grf>;