ARM: mvebu: Add a 2 GHz fixed-clock on Armada 38x SoCs

Armada 38x SoCs have a 2 GHz fixed main PLL that is used to feed
other clocks. This commit adds a DT representation of this clock
through a fixed-clock compatible node.

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Link: https://lkml.kernel.org/r/1394742273-5113-3-git-send-email-ezequiel.garcia@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

diff --git a/arch/arm/boot/dts/armada-38x.dtsi b/arch/arm/boot/dts/armada-38x.dtsi
index 812ce28..38fc3a0 100644 (file)
--- a/arch/arm/boot/dts/armada-38x.dtsi
+++ b/arch/arm/boot/dts/armada-38x.dtsi
@@ -341,6 +341,13 @@
        };
 
        clocks {
+               /* 2 GHz fixed main PLL */
+               mainpll: mainpll {
+                       compatible = "fixed-clock";
+                       #clock-cells = <0>;
+                       clock-frequency = <2000000000>;
+               };
+
                /* 25 MHz reference crystal */
                refclk: oscillator {
                        compatible = "fixed-clock";