arm64: dts: uniphier: add reference clock node for PH1-LD20

Add a master clock node generated by a 25MHz crystal oscillator.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

diff --git a/arch/arm64/boot/dts/socionext/uniphier-ph1-ld20.dtsi b/arch/arm64/boot/dts/socionext/uniphier-ph1-ld20.dtsi
index e682a3f..8b908cd 100644 (file)
--- a/arch/arm64/boot/dts/socionext/uniphier-ph1-ld20.dtsi
+++ b/arch/arm64/boot/dts/socionext/uniphier-ph1-ld20.dtsi
@@ -106,6 +106,12 @@
        };
 
        clocks {
+               refclk: ref {
+                       compatible = "fixed-clock";
+                       #clock-cells = <0>;
+                       clock-frequency = <25000000>;
+               };
+
                uart_clk: uart_clk {
                        #clock-cells = <0>;
                        compatible = "fixed-clock";