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>

1 files changed, 7 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/armada-38x.dtsi b/arch/arm/boot/dts/armada-38x.dtsi
index 812ce280b349..38fc3a0ba184 100644
--- 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";