ARM: dts: uniphier: add CPU clocks and OPP table for PXs2 SoC

Add a CPU clock to every CPU node and a CPU OPP table to use the
generic cpufreq driver.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: NViresh Kumar <viresh.kumar@linaro.org>

arch/arm/boot/dts/uniphier-pxs2.dtsi

@@ -56,32 +56,78 @@
 			device_type = "cpu";
 			compatible = "arm,cortex-a9";
 			reg = <0>;
+			clocks = <&sys_clk 32>;
 			enable-method = "psci";
 			next-level-cache = <&l2>;
+			operating-points-v2 = <&cpu_opp>;
 		};
 
 		cpu@1 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a9";
 			reg = <1>;
+			clocks = <&sys_clk 32>;
 			enable-method = "psci";
 			next-level-cache = <&l2>;
+			operating-points-v2 = <&cpu_opp>;
 		};
 
 		cpu@2 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a9";
 			reg = <2>;
+			clocks = <&sys_clk 32>;
 			enable-method = "psci";
 			next-level-cache = <&l2>;
+			operating-points-v2 = <&cpu_opp>;
 		};
 
 		cpu@3 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a9";
 			reg = <3>;
+			clocks = <&sys_clk 32>;
 			enable-method = "psci";
 			next-level-cache = <&l2>;
+			operating-points-v2 = <&cpu_opp>;
+		};
+	};
+
+	cpu_opp: opp_table {
+		compatible = "operating-points-v2";
+		opp-shared;
+
+		opp@100000000 {
+			opp-hz = /bits/ 64 <100000000>;
+			clock-latency-ns = <300>;
+		};
+		opp@150000000 {
+			opp-hz = /bits/ 64 <150000000>;
+			clock-latency-ns = <300>;
+		};
+		opp@200000000 {
+			opp-hz = /bits/ 64 <200000000>;
+			clock-latency-ns = <300>;
+		};
+		opp@300000000 {
+			opp-hz = /bits/ 64 <300000000>;
+			clock-latency-ns = <300>;
+		};
+		opp@400000000 {
+			opp-hz = /bits/ 64 <400000000>;
+			clock-latency-ns = <300>;
+		};
+		opp@600000000 {
+			opp-hz = /bits/ 64 <600000000>;
+			clock-latency-ns = <300>;
+		};
+		opp@800000000 {
+			opp-hz = /bits/ 64 <800000000>;
+			clock-latency-ns = <300>;
+		};
+		opp@1200000000 {
+			opp-hz = /bits/ 64 <1200000000>;
+			clock-latency-ns = <300>;
 		};
 	};