ARC: [plat-hsdk] use actual clk driver to manage cpu clk

Eugeniy Paltsev · vineetgarc · commit ef833eab1dde · 2017-10-03T20:36:49.000-07:00
With corresponding clk driver now merged upstream, switch to it.

 - core_clk now represent the PLL (vs. fixed clk before)
 - input_clk represent the clk signal src for PLL (basically xtal)

Signed-off-by: Eugeniy Paltsev &lt;Eugeniy.Paltsev@synopsys.com&gt;
Signed-off-by: Vineet Gupta &lt;vgupta@synopsys.com&gt;
diff --git a/arch/arc/boot/dts/hsdk.dts b/arch/arc/boot/dts/hsdk.dts
@@ -57,10 +57,10 @@
 		};
 	};
 
-	core_clk: core-clk {
+	input_clk: input-clk {
 		#clock-cells = <0>;
 		compatible = "fixed-clock";
-		clock-frequency = <500000000>;
+		clock-frequency = <33333333>;
 	};
 
 	cpu_intc: cpu-interrupt-controller {
@@ -102,6 +102,13 @@
 
 		ranges = <0x00000000 0xf0000000 0x10000000>;
 
+		core_clk: core-clk@0 {
+			compatible = "snps,hsdk-core-pll-clock";
+			reg = <0x00 0x10>, <0x14B8 0x4>;
+			#clock-cells = <0>;
+			clocks = <&input_clk>;
+		};
+
 		serial: serial@5000 {
 			compatible = "snps,dw-apb-uart";
 			reg = <0x5000 0x100>;
diff --git a/arch/arc/plat-hsdk/Kconfig b/arch/arc/plat-hsdk/Kconfig
@@ -6,4 +6,5 @@
 #
 
 menuconfig ARC_SOC_HSDK
-       bool "ARC HS Development Kit SOC"
+	bool "ARC HS Development Kit SOC"
+	select CLK_HSDK

Original file line number	Diff line number	Diff line change
`@@ -6,4 +6,5 @@`
`6`	`6`	`#`
`7`	`7`
`8`	`8`	`menuconfig ARC_SOC_HSDK`
`9`		`- bool "ARC HS Development Kit SOC"`
	`9`	`+ bool "ARC HS Development Kit SOC"`
	`10`	`+ select CLK_HSDK`