arm64: dts: renesas: r9a09g087: Add xSPI nodes

Add device tree nodes for the two xSPI (Expanded SPI) controllers
integrated into the RZ/N2H (R9A09G087) SoC.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20260526204045.3481604-3-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

Author: prabhakarlad

arch/arm64/boot/dts/renesas/r9a09g087.dtsi

@@ -1009,6 +1009,46 @@
 			};
 		};
 
+		xspi0: spi@801c0000 {
+			compatible = "renesas,r9a09g087-xspi",
+				     "renesas,r9a09g047-xspi";
+			reg = <0 0x801c0000 0 0x1000>,
+			      <0 0x40000000 0 0x10000000>;
+			reg-names = "regs", "dirmap";
+			interrupts = <GIC_SPI 654 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 655 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "pulse", "err_pulse";
+			clocks = <&cpg CPG_MOD 4>,
+				 <&cpg CPG_CORE R9A09G087_XSPI_CLK0>;
+			clock-names = "ahb", "spi";
+			resets = <&cpg 4>;
+			reset-names = "hresetn";
+			power-domains = <&cpg>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		xspi1: spi@801c1000 {
+			compatible = "renesas,r9a09g087-xspi",
+				     "renesas,r9a09g047-xspi";
+			reg = <0 0x801c1000 0 0x1000>,
+			      <0 0x50000000 0 0x10000000>;
+			reg-names = "regs", "dirmap";
+			interrupts = <GIC_SPI 656 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 657 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "pulse", "err_pulse";
+			clocks = <&cpg CPG_MOD 5>,
+				 <&cpg CPG_CORE R9A09G087_XSPI_CLK1>;
+			clock-names = "ahb", "spi";
+			resets = <&cpg 5>;
+			reset-names = "hresetn";
+			power-domains = <&cpg>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
 		cpg: clock-controller@80280000 {
 			compatible = "renesas,r9a09g087-cpg-mssr";
 			reg = <0 0x80280000 0 0x10000>,