LF-3503 ARM64: imx8mp-ddr4-evk: add nand support

Add nand support for i.MX8MP-DDR4-EVK board.

Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
Reviewed-by: Han Xu <han.xu@nxp.com>

arch/arm64/boot/dts/freescale/imx8mp-ddr4-evk.dts

@@ -7,6 +7,10 @@
 
 / {
 	model = "NXP i.MX8MPlus DDR4 EVK board";
+
+	gpio-leds {
+		status = "disabled";
+	};
 };
 
 &flexspi {
@@ -30,6 +34,13 @@ &clk {
 			       <2079000000>;
 };
 
+&gpmi {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_gpmi_nand>;
+	status = "okay";
+	nand-on-flash-bbt;
+};
+
 &gpu_2d {
 	assigned-clocks = <&clk IMX8MP_CLK_GPU2D_SRC>,
 			  <&clk IMX8MP_CLK_GPU_AXI>,
@@ -95,3 +106,28 @@ &lcdif3 {
 	thres-high = <3 3>;             /* (FIFO * 3 / 3) */
 	status = "okay";
 };
+
+&iomuxc {
+	pinctrl_gpmi_nand: gpmi-nand {
+		fsl,pins = <
+			MX8MP_IOMUXC_NAND_ALE__NAND_ALE			0x00000096
+			MX8MP_IOMUXC_NAND_CE0_B__NAND_CE0_B		0x00000096
+			MX8MP_IOMUXC_NAND_CE1_B__NAND_CE1_B		0x00000096
+			MX8MP_IOMUXC_NAND_CE2_B__NAND_CE2_B		0x00000096
+			MX8MP_IOMUXC_NAND_CE3_B__NAND_CE3_B		0x00000096
+			MX8MP_IOMUXC_NAND_CLE__NAND_CLE			0x00000096
+			MX8MP_IOMUXC_NAND_DATA00__NAND_DATA00		0x00000096
+			MX8MP_IOMUXC_NAND_DATA01__NAND_DATA01		0x00000096
+			MX8MP_IOMUXC_NAND_DATA02__NAND_DATA02		0x00000096
+			MX8MP_IOMUXC_NAND_DATA03__NAND_DATA03		0x00000096
+			MX8MP_IOMUXC_NAND_DATA04__NAND_DATA04		0x00000096
+			MX8MP_IOMUXC_NAND_DATA05__NAND_DATA05		0x00000096
+			MX8MP_IOMUXC_NAND_DATA06__NAND_DATA06		0x00000096
+			MX8MP_IOMUXC_NAND_DATA07__NAND_DATA07		0x00000096
+			MX8MP_IOMUXC_NAND_RE_B__NAND_RE_B		0x00000096
+			MX8MP_IOMUXC_NAND_READY_B__NAND_READY_B		0x00000056
+			MX8MP_IOMUXC_NAND_WE_B__NAND_WE_B		0x00000096
+			MX8MP_IOMUXC_NAND_WP_B__NAND_WP_B		0x00000096
+		>;
+	};
+};

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

@@ -2020,6 +2020,35 @@ gic: interrupt-controller@38800000 {
 			interrupt-parent = <&gic>;
 		};
 
+		dma_apbh: dma-apbh@33000000 {
+			compatible = "fsl,imx7d-dma-apbh", "fsl,imx28-dma-apbh";
+			reg = <0x33000000 0x2000>;
+			interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
+				<GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
+				<GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
+				<GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "gpmi0", "gpmi1", "gpmi2", "gpmi3";
+			#dma-cells = <1>;
+			dma-channels = <4>;
+			clocks = <&clk IMX8MP_CLK_NAND_USDHC_BUS_RAWNAND_CLK>;
+		};
+
+		gpmi: gpmi-nand@33002000{
+			compatible = "fsl,imx7d-gpmi-nand";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			reg = <0x33002000 0x2000>, <0x33004000 0x4000>;
+			reg-names = "gpmi-nand", "bch";
+			interrupts = <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "bch";
+			clocks = <&clk IMX8MP_CLK_NAND_ROOT>,
+				<&clk IMX8MP_CLK_NAND_USDHC_BUS_RAWNAND_CLK>;
+			clock-names = "gpmi_io", "gpmi_bch_apb";
+			dmas = <&dma_apbh 0>;
+			dma-names = "rx-tx";
+			status = "disabled";
+		};
+
 		pcie: pcie@33800000 {
 			compatible = "fsl,imx8mp-pcie", "snps,dw-pcie";
 			reg = <0x33800000 0x400000>, <0x1ff00000 0x80000>;