The cpu core is clocked from the "cpu" clock. Add a reference to it
in the first cpu node. Also add "cpu0" label to the node.

The operating points were taken from the A20 FEX files in the
sunxi-boards repository. Not all boards have the same settings. The
settings in this patch are the most generic ones.

Signed-off-by: Chen-Yu Tsai <[email protected]>
---
 arch/arm/boot/dts/sun7i-a20.dtsi | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
index 01c7133e699c..887b0521bbfb 100644
--- a/arch/arm/boot/dts/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
@@ -82,10 +82,26 @@
                #address-cells = <1>;
                #size-cells = <0>;
 
-               cpu@0 {
+               cpu0: cpu@0 {
                        compatible = "arm,cortex-a7";
                        device_type = "cpu";
                        reg = <0>;
+                       clocks = <&cpu>;
+                       clock-latency = <244144>; /* 8 32k periods */
+                       operating-points = <
+                               /* kHz    uV */
+                               1008000 1450000
+                               960000  1400000
+                               912000  1400000
+                               864000  1300000
+                               720000  1200000
+                               528000  1100000
+                               312000  1000000
+                               144000  900000
+                               >;
+                       #cooling-cells = <2>;
+                       cooling-min-level = <0>;
+                       cooling-max-level = <7>;
                };
 
                cpu@1 {
-- 
2.1.4

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