[PATCH v4 02/10] arm64: dts: realtek: Add clock support for RTD1625

From: Yu-Chun Lin

Date: Fri Mar 13 2026 - 04:15:39 EST


Add the clock controller nodes and osc27m fixed clock for the
Realtek RTD1625 SoC.

Signed-off-by: Yu-Chun Lin <eleanor.lin@xxxxxxxxxxx>
---
Changes in v4:
- This is a new patch.
---
arch/arm64/boot/dts/realtek/kent.dtsi | 30 +++++++++++++++++++++++++++
1 file changed, 30 insertions(+)

diff --git a/arch/arm64/boot/dts/realtek/kent.dtsi b/arch/arm64/boot/dts/realtek/kent.dtsi
index ae006ce24420..eaff586c1806 100644
--- a/arch/arm64/boot/dts/realtek/kent.dtsi
+++ b/arch/arm64/boot/dts/realtek/kent.dtsi
@@ -26,6 +26,15 @@ timer {
<GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
};

+ clocks {
+ osc27m: osc {
+ compatible = "fixed-clock";
+ clock-frequency = <27000000>;
+ clock-output-names = "osc27m";
+ #clock-cells = <0>;
+ };
+ };
+
cpus {
#address-cells = <1>;
#size-cells = <0>;
@@ -141,6 +150,20 @@ rbus: bus@98000000 {
#address-cells = <1>;
#size-cells = <1>;

+ cc: clock-controller@0 {
+ compatible = "realtek,rtd1625-crt-clk";
+ reg = <0x0 0x900>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
+
+ ic: clock-controller@7088 {
+ compatible = "realtek,rtd1625-iso-clk";
+ reg = <0x7088 0x8>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
+
uart0: serial@7800 {
compatible = "snps,dw-apb-uart";
reg = <0x7800 0x100>;
@@ -150,6 +173,13 @@ uart0: serial@7800 {
reg-shift = <2>;
status = "disabled";
};
+
+ iso_s_cc: clock-controller@146310 {
+ compatible = "realtek,rtd1625-iso-s-clk";
+ reg = <0x146310 0x8>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
};

gic: interrupt-controller@ff100000 {
--
2.34.1