omap3: add support for NAND on zoom2 board

This patch adds NAND support to ZOOM2 board.
Signed-off-by: Sukumar Ghorai <s-ghorai@ti.com>
Signed-off-by: Vimal Singh <vimalsingh@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/Makefile

@@ -130,6 +130,7 @@ obj-$(CONFIG_MACH_NOKIA_RX51)		+= board-rx51.o \
 					   hsmmc.o
 obj-$(CONFIG_MACH_OMAP_ZOOM2)		+= board-zoom2.o \
 					   board-zoom-peripherals.o \
+					   board-flash.o \
 					   hsmmc.o \
 					   board-zoom-debugboard.o
 obj-$(CONFIG_MACH_OMAP_ZOOM3)		+= board-zoom3.o \

arch/arm/mach-omap2/board-zoom2.c

@@ -90,10 +90,53 @@ static struct omap_board_mux board_mux[] __initdata = {
 #define board_mux	NULL
 #endif
 
+static struct mtd_partition zoom_nand_partitions[] = {
+	/* All the partition sizes are listed in terms of NAND block size */
+	{
+		.name		= "X-Loader-NAND",
+		.offset		= 0,
+		.size		= 4 * (64 * 2048),	/* 512KB, 0x80000 */
+		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
+	},
+	{
+		.name		= "U-Boot-NAND",
+		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x80000 */
+		.size		= 10 * (64 * 2048),	/* 1.25MB, 0x140000 */
+		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
+	},
+	{
+		.name		= "Boot Env-NAND",
+		.offset		= MTDPART_OFS_APPEND,   /* Offset = 0x1c0000 */
+		.size		= 2 * (64 * 2048),	/* 256KB, 0x40000 */
+	},
+	{
+		.name		= "Kernel-NAND",
+		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x0200000*/
+		.size		= 240 * (64 * 2048),	/* 30M, 0x1E00000 */
+	},
+	{
+		.name		= "system",
+		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x2000000 */
+		.size		= 3328 * (64 * 2048),	/* 416M, 0x1A000000 */
+	},
+	{
+		.name		= "userdata",
+		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x1C000000*/
+		.size		= 256 * (64 * 2048),	/* 32M, 0x2000000 */
+	},
+	{
+		.name		= "cache",
+		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x1E000000*/
+		.size		= 256 * (64 * 2048),	/* 32M, 0x2000000 */
+	},
+};
+
 static void __init omap_zoom2_init(void)
 {
 	omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 	zoom_peripherals_init();
+	board_nand_init(zoom_nand_partitions,
+			ARRAY_SIZE(zoom_nand_partitions), ZOOM_NAND_CS);
 	zoom_debugboard_init();
 }
 

arch/arm/mach-omap2/include/mach/board-zoom.h

 /*
  * Defines for zoom boards
  */
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+
+#define ZOOM_NAND_CS    0
+
+extern void __init board_nand_init(struct mtd_partition *, u8 nr_parts, u8 cs);
 extern int __init zoom_debugboard_init(void);
 extern void __init zoom_peripherals_init(void);