arm64: dts: s32g: add RTC node

JIRA: https://issues.redhat.com/browse/RHEL-116642

commit d57d72f
Author: Ciprian Marian Costea <ciprianmarian.costea@oss.nxp.com>
Date:   Mon May 26 19:21:40 2025 +0300

    arm64: dts: s32g: add RTC node

    The RTC module on S32G2/S32G3 based SoCs is used as a wakeup source from
    system suspend.

    Signed-off-by: Ciprian Marian Costea <ciprianmarian.costea@oss.nxp.com>
    Reviewed-by: Matthias Brugger <mbrugger@suse.com>
    Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Signed-off-by: Jared Kangas <jkangas@redhat.com>

Author: rh-jkangas

arch/arm64/boot/dts/freescale/s32g2.dtsi

@@ -114,6 +114,14 @@
 		#size-cells = <1>;
 		ranges = <0 0 0 0x80000000>;
 
+		rtc0: rtc@40060000 {
+			compatible = "nxp,s32g2-rtc";
+			reg = <0x40060000 0x1000>;
+			interrupts = <GIC_SPI 121 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clks 54>, <&clks 55>;
+			clock-names = "ipg", "source0";
+		};
+
 		pinctrl: pinctrl@4009c240 {
 			compatible = "nxp,s32g2-siul2-pinctrl";
 				/* MSCR0-MSCR101 registers on siul2_0 */

arch/arm64/boot/dts/freescale/s32g3.dtsi

@@ -171,6 +171,15 @@
 		#size-cells = <1>;
 		ranges = <0 0 0 0x80000000>;
 
+		rtc0: rtc@40060000 {
+			compatible = "nxp,s32g3-rtc",
+				     "nxp,s32g2-rtc";
+			reg = <0x40060000 0x1000>;
+			interrupts = <GIC_SPI 121 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clks 54>, <&clks 55>;
+			clock-names = "ipg", "source0";
+		};
+
 		pinctrl: pinctrl@4009c240 {
 			compatible = "nxp,s32g2-siul2-pinctrl";
 				/* MSCR0-MSCR101 registers on siul2_0 */