arm64: dts: Add i.MX8MP PCIe EP support

Add i.MX8MP PCIe EP support.
Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/imx8mp.dtsi

@@ -1309,6 +1309,32 @@ pcie: pcie@33800000 {
 			status = "disabled";
 		};
 
+		pcie_ep: pcie-ep@33800000 {
+			compatible = "fsl,imx8mp-pcie-ep";
+			reg = <0x33800000 0x000400000>, <0x18000000 0x08000000>;
+			reg-names = "dbi", "addr_space";
+			clocks = <&clk IMX8MP_CLK_HSIO_ROOT>,
+				 <&clk IMX8MP_CLK_HSIO_AXI>,
+				 <&clk IMX8MP_CLK_PCIE_ROOT>;
+			clock-names = "pcie", "pcie_bus", "pcie_aux";
+			assigned-clocks = <&clk IMX8MP_CLK_PCIE_AUX>;
+			assigned-clock-rates = <10000000>;
+			assigned-clock-parents = <&clk IMX8MP_SYS_PLL2_50M>;
+			num-lanes = <1>;
+			interrupts = <GIC_SPI 127 IRQ_TYPE_LEVEL_HIGH>; /* eDMA */
+			interrupt-names = "dma";
+			fsl,max-link-speed = <3>;
+			power-domains = <&hsio_blk_ctrl IMX8MP_HSIOBLK_PD_PCIE>;
+			resets = <&src IMX8MP_RESET_PCIE_CTRL_APPS_EN>,
+				 <&src IMX8MP_RESET_PCIE_CTRL_APPS_TURNOFF>;
+			reset-names = "apps", "turnoff";
+			phys = <&pcie_phy>;
+			phy-names = "pcie-phy";
+			num-ib-windows = <4>;
+			num-ob-windows = <4>;
+			status = "disabled";
+		};
+
 		gpu3d: gpu@38000000 {
 			compatible = "vivante,gc";
 			reg = <0x38000000 0x8000>;