ARM64: dts: rockchip: Add IEP node for RK3328

while at that also add the mmu required

Signed-off-by: Alex Bee <knaerzche@gmail.com>

arch/arm64/boot/dts/rockchip/rk3328.dtsi

@@ -760,6 +760,28 @@
 		status = "disabled";
 	};
 
+	iep: iep@ff3a0000 {
+		compatible = "rockchip,rk3328-iep", "rockchip,rk3228-iep";
+		reg = <0x0 0xff3a0000 0x0 0x800>;
+		interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "iep";
+		clocks = <&cru ACLK_IEP>, <&cru HCLK_IEP>;
+		clock-names = "axi", "ahb";
+		power-domains = <&power RK3328_PD_VIDEO>;
+		iommus = <&iep_mmu>;
+	};
+
+	iep_mmu: iommu@ff3a0800 {
+		compatible = "rockchip,iommu";
+		reg = <0x0 0xff3a0800 0x0 0x40>;
+		interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "iep_mmu";
+		clocks = <&cru ACLK_IEP>, <&cru HCLK_IEP>;
+		clock-names = "aclk", "iface";
+		power-domains = <&power RK3328_PD_VIDEO>;
+		#iommu-cells = <0>;
+	};
+
 	hdmi: hdmi@ff3c0000 {
 		compatible = "rockchip,rk3328-dw-hdmi";
 		reg = <0x0 0xff3c0000 0x0 0x20000>;