arm64: dts: hi6220: add pinctrl for uarts and enable them

Add pinctrl for uart2 uart3 and uart4. Enable uart1 uart2 and uart3.
Signed-off-by: Guodong Xu <guodong.xu@linaro.org>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>

arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts

@@ -53,6 +53,18 @@ i2c0: i2c@f7100000 {
 		i2c1: i2c@f7101000 {
 			status = "ok";
 		};
+
+		uart1: uart@f7111000 {
+			status = "ok";
+		};
+
+		uart2: uart@f7112000 {
+			status = "ok";
+		};
+
+		uart3: uart@f7113000 {
+			status = "ok";
+		};
 	};
 };
 

arch/arm64/boot/dts/hisilicon/hi6220.dtsi

@@ -266,6 +266,8 @@ uart1: uart@f7111000 {
 			clocks = <&sys_ctrl HI6220_UART1_PCLK>,
 				 <&sys_ctrl HI6220_UART1_PCLK>;
 			clock-names = "uartclk", "apb_pclk";
+			pinctrl-names = "default";
+			pinctrl-0 = <&uart1_pmx_func &uart1_cfg_func1 &uart1_cfg_func2>;
 			status = "disabled";
 		};
 
@@ -276,6 +278,8 @@ uart2: uart@f7112000 {
 			clocks = <&sys_ctrl HI6220_UART2_PCLK>,
 				 <&sys_ctrl HI6220_UART2_PCLK>;
 			clock-names = "uartclk", "apb_pclk";
+			pinctrl-names = "default";
+			pinctrl-0 = <&uart2_pmx_func &uart2_cfg_func>;
 			status = "disabled";
 		};
 
@@ -286,6 +290,9 @@ uart3: uart@f7113000 {
 			clocks = <&sys_ctrl HI6220_UART3_PCLK>,
 				 <&sys_ctrl HI6220_UART3_PCLK>;
 			clock-names = "uartclk", "apb_pclk";
+			pinctrl-names = "default";
+			pinctrl-0 = <&uart3_pmx_func &uart3_cfg_func>;
+			status = "disabled";
 		};
 
 		uart4: uart@f7114000 {
@@ -295,6 +302,8 @@ uart4: uart@f7114000 {
 			clocks = <&sys_ctrl HI6220_UART4_PCLK>,
 				 <&sys_ctrl HI6220_UART4_PCLK>;
 			clock-names = "uartclk", "apb_pclk";
+			pinctrl-names = "default";
+			pinctrl-0 = <&uart4_pmx_func &uart4_cfg_func>;
 			status = "disabled";
 		};