ARM: dts: add clock support for Airoha EN7523

This driver only registers fixed rate clocks, since the clocks are fully
initialized by the boot loader and should not be changed later, according
to Airoha.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/20220314084409.84394-4-nbd@nbd.name
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

diff --git a/arch/arm/boot/dts/en7523.dtsi b/arch/arm/boot/dts/en7523.dtsi
index 36597f5..2e705b8 100644 (file)
--- a/arch/arm/boot/dts/en7523.dtsi
+++ b/arch/arm/boot/dts/en7523.dtsi
@@ -3,6 +3,7 @@
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/clock/en7523-clk.h>
 
 / {
        interrupt-parent = <&gic>;
@@ -83,6 +84,13 @@
                };
        };
 
+       scu: system-controller@1fa20000 {
+               compatible = "airoha,en7523-scu";
+               reg = <0x1fa20000 0x400>,
+                     <0x1fb00000 0x1000>;
+               #clock-cells = <1>;
+       };
+
        gic: interrupt-controller@9000000 {
                compatible = "arm,gic-v3";
                interrupt-controller;