ARM: dts: Enable MSI support for Broadcom Cygnus

Enable MSI support for Broadcom Cygnus platforms
Signed-off-by: Ray Jui <rjui@broadcom.com>
Reviewed-by: Anup Patel <anup.patel@broadcom.com>
Reviewed-by: Pramod KUMAR <pramodku@broadcom.com>
Reviewed-by: Vikram Prakash <vikramp@broadcom.com>
Reviewed-by: Scott Branden <sbranden@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

arch/arm/boot/dts/bcm-cygnus.dtsi

@@ -184,6 +184,17 @@ pcie0: pcie@18012000 {
 			phy-names = "pcie-phy";
 
 			status = "disabled";
+
+			msi-parent = <&msi0>;
+			msi0: msi@18012000 {
+				compatible = "brcm,iproc-msi";
+				msi-controller;
+				interrupt-parent = <&gic>;
+				interrupts = <GIC_SPI 96 IRQ_TYPE_NONE>,
+					     <GIC_SPI 97 IRQ_TYPE_NONE>,
+					     <GIC_SPI 98 IRQ_TYPE_NONE>,
+					     <GIC_SPI 99 IRQ_TYPE_NONE>;
+			};
 		};
 
 		pcie1: pcie@18013000 {
@@ -208,6 +219,17 @@ pcie1: pcie@18013000 {
 			phy-names = "pcie-phy";
 
 			status = "disabled";
+
+			msi-parent = <&msi1>;
+			msi1: msi@18013000 {
+				compatible = "brcm,iproc-msi";
+				msi-controller;
+				interrupt-parent = <&gic>;
+				interrupts = <GIC_SPI 102 IRQ_TYPE_NONE>,
+					     <GIC_SPI 103 IRQ_TYPE_NONE>,
+					     <GIC_SPI 104 IRQ_TYPE_NONE>,
+					     <GIC_SPI 105 IRQ_TYPE_NONE>;
+			};
 		};
 
 		uart0: serial@18020000 {