ARM: at91: sam9x5 add nand support

Enable the nand in the cpu module with the partition.
Signed-off-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

arch/arm/boot/dts/at91sam9g25ek.dts

@@ -15,7 +15,7 @@
 	compatible = "atmel,at91sam9g25ek", "atmel,at91sam9x5ek", "atmel,at91sam9x5", "atmel,at91sam9";
 
 	chosen {
-		bootargs = "128M console=ttyS0,115200 mtdparts=atmel_nand:8M(bootstrap/uboot/kernel)ro,-(rootfs) root=/dev/mtdblock1 rw rootfstype=ubifs ubi.mtd=1 root=ubi0:rootfs";
+		bootargs = "128M console=ttyS0,115200 root=/dev/mtdblock1 rw rootfstype=ubifs ubi.mtd=1 root=ubi0:rootfs";
 	};
 
 	ahb {

arch/arm/boot/dts/at91sam9x5.dtsi

@@ -172,5 +172,20 @@
 				status = "disabled";
 			};
 		};
+
+		nand0: nand@40000000 {
+			compatible = "atmel,at91rm9200-nand";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			reg = <0x40000000 0x10000000
+			      >;
+			atmel,nand-addr-offset = <21>;
+			atmel,nand-cmd-offset = <22>;
+			gpios = <&pioC 8 0
+				 &pioC 14 0
+				 0
+				>;
+			status = "disabled";
+		};
 	};
 };

arch/arm/boot/dts/at91sam9x5cm.dtsi

@@ -12,6 +12,40 @@
 		reg = <0x20000000 0x8000000>;
 	};
 
+	ahb {
+		nand0: nand@40000000 {
+			nand-bus-width = <8>;
+			nand-ecc-mode = "soft";
+			nand-on-flash-bbt;
+			status = "okay";
+
+			at91bootstrap@0 {
+				label = "at91bootstrap";
+				reg = <0x0 0x40000>;
+			};
+
+			uboot@40000 {
+				label = "u-boot";
+				reg = <0x40000 0x80000>;
+			};
+
+			ubootenv@c0000 {
+				label = "U-Boot Env";
+				reg = <0xc0000 0x140000>;
+			};
+
+			kernel@200000 {
+				label = "kernel";
+				reg = <0x200000 0x600000>;
+			};
+
+			rootfs@800000 {
+				label = "rootfs";
+				reg = <0x800000 0x1f800000>;
+			};
+		};
+	};
+
 	leds {
 		compatible = "gpio-leds";