ARM: dts: uniphier: add System Bus pinmux node

This pin-muxing is needed to get access to the UniPhier System Bus.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Olof Johansson <olof@lixom.net>

arch/arm/boot/dts/uniphier-common32.dtsi

@@ -105,6 +105,8 @@ system_bus: system-bus@58c00000 {
 			reg = <0x58c00000 0x400>;
 			#address-cells = <2>;
 			#size-cells = <1>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&pinctrl_system_bus>;
 		};
 
 		smpctrl@59800000 {

arch/arm/boot/dts/uniphier-pinctrl.dtsi

@@ -78,6 +78,11 @@ pinctrl_nand2cs: nand2cs_grp {
 		function = "nand";
 	};
 
+	pinctrl_system_bus: system_bus_grp {
+		groups = "system_bus", "system_bus_cs1";
+		function = "system_bus";
+	};
+
 	pinctrl_uart0: uart0_grp {
 		groups = "uart0";
 		function = "uart0";