ARM: dts: am335x-myirtech: Add an external clock oscillator for CPU RTC

The CPU RTC has an external crystal, so to keep time, let's define
it for devicetree.

Signed-off-by: Alexander Shiyan <eagle.alexander923@gmail.com>
Message-Id: <20220427081914.6773-1-eagle.alexander923@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/boot/dts/am335x-myirtech-myc.dtsi b/arch/arm/boot/dts/am335x-myirtech-myc.dtsi
index 245c35f41cdf34cfc66ddf7a67f004d41c923cd5..d94e096983c7f9f7ff12beb46b80786c341b763a 100644 (file)
--- a/arch/arm/boot/dts/am335x-myirtech-myc.dtsi
+++ b/arch/arm/boot/dts/am335x-myirtech-myc.dtsi
@@ -27,6 +27,13 @@
                reg = <0x80000000 0x10000000>;
        };
 
+       clk32k: clk32k {
+               compatible = "fixed-clock";
+               clock-frequency = <32768>;
+
+               #clock-cells = <0>;
+       };
+
        vdd_mod: vdd_mod_reg {
                compatible = "regulator-fixed";
                regulator-name = "vdd-mod";
@@ -149,6 +156,8 @@
 };
 
 &rtc {
+       clocks = <&clk32k>;
+       clock-names = "ext-clk";
        system-power-controller;
 };