ARM: OMAP2+: craneboard: support NAND device

 This patch enables the NAND device on the AM3517 Craneboard.

 MTD partitions are created as below.
 0x000000000000-0x000000080000 : "X-Loader"
 0x000000080000-0x000000240000 : "U-Boot"
 0x000000240000-0x000000280000 : "U-Boot Env"
 0x000000280000-0x000000780000 : "Kernel"
 0x000000780000-0x000010000000 : "File System"

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/mach-omap2/board-am3517crane.c b/arch/arm/mach-omap2/board-am3517crane.c
index 51b96a1..37646e5 100644 (file)
--- a/arch/arm/mach-omap2/board-am3517crane.c
+++ b/arch/arm/mach-omap2/board-am3517crane.c
@@ -20,12 +20,17 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/gpio.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/partitions.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
 
 #include "common.h"
+#include "common-board-devices.h"
+#include "board-flash.h"
 
 #include "am35xx-emac.h"
 #include "mux.h"
@@ -51,6 +56,36 @@ static struct usbhs_omap_board_data usbhs_bdata __initdata = {
        .reset_gpio_port[2]  = -EINVAL
 };
 
+static struct mtd_partition crane_nand_partitions[] = {
+       {
+               .name           = "X-Loader",
+               .offset         = 0,
+               .size           = 4 * NAND_BLOCK_SIZE,
+               .mask_flags     = MTD_WRITEABLE,
+       },
+       {
+               .name           = "U-Boot",
+               .offset         = MTDPART_OFS_APPEND,
+               .size           = 14 * NAND_BLOCK_SIZE,
+               .mask_flags     = MTD_WRITEABLE,
+       },
+       {
+               .name           = "U-Boot Env",
+               .offset         = MTDPART_OFS_APPEND,
+               .size           = 2 * NAND_BLOCK_SIZE,
+       },
+       {
+               .name           = "Kernel",
+               .offset         = MTDPART_OFS_APPEND,
+               .size           = 40 * NAND_BLOCK_SIZE,
+       },
+       {
+               .name           = "File System",
+               .offset         = MTDPART_OFS_APPEND,
+               .size           = MTDPART_SIZ_FULL,
+       },
+};
+
 static void __init am3517_crane_init(void)
 {
        int ret;
@@ -58,6 +93,9 @@ static void __init am3517_crane_init(void)
        omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
        omap_serial_init();
        omap_sdrc_init(NULL, NULL);
+       board_nand_init(crane_nand_partitions,
+                       ARRAY_SIZE(crane_nand_partitions), 0,
+                       NAND_BUSWIDTH_16, NULL);
 
        /* Configure GPIO for EHCI port */
        if (omap_mux_init_gpio(GPIO_USB_NRESET, OMAP_PIN_OUTPUT)) {