ARM: davinci: da850: add NAND driver DT entries

Add NAND driver DT node and related pinctrl DT data to export NAND
functionality on da850 evm.
Signed-off-by: Kumar, Anil <anilkumar.v@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>

arch/arm/boot/dts/da850-evm.dts

@@ -28,4 +28,9 @@ serial2: serial@1d0d000 {
 			status = "okay";
 		};
 	};
+	nand_cs3@62000000 {
+		status = "okay";
+		pinctrl-names = "default";
+		pinctrl-0 = <&nand_cs3_pins>;
+	};
 };

arch/arm/boot/dts/da850.dtsi

@@ -38,6 +38,23 @@ pmx_core: pinmux@1c14120 {
 			pinctrl-single,register-width = <32>;
 			pinctrl-single,function-mask = <0xffffffff>;
 			status = "disabled";
+
+			nand_cs3_pins: pinmux_nand_pins {
+				pinctrl-single,bits = <
+					/* EMA_OE, EMA_WE */
+					0x1c 0x00110000  0x00ff0000
+					/* EMA_CS[4],EMA_CS[3]*/
+					0x1c 0x00000110  0x00000ff0
+					/*
+					 * EMA_D[0], EMA_D[1], EMA_D[2],
+					 * EMA_D[3], EMA_D[4], EMA_D[5],
+					 * EMA_D[6], EMA_D[7]
+					 */
+					0x24 0x11111111  0xffffffff
+					/* EMA_A[1], EMA_A[2] */
+					0x30 0x01100000  0x0ff00000
+				>;
+			};
 		};
 		serial0: serial@1c42000 {
 			compatible = "ns16550a";
@@ -67,4 +84,17 @@ serial2: serial@1d0d000 {
 			status = "disabled";
 		};
 	};
+	nand_cs3@62000000 {
+		compatible = "ti,davinci-nand";
+		reg = <0x62000000 0x807ff
+		       0x68000000 0x8000>;
+		ti,davinci-chipselect = <1>;
+		ti,davinci-mask-ale = <0>;
+		ti,davinci-mask-cle = <0>;
+		ti,davinci-mask-chipsel = <0>;
+		ti,davinci-ecc-mode = "hw";
+		ti,davinci-ecc-bits = <4>;
+		ti,davinci-nand-use-bbt;
+		status = "disabled";
+	};
 };