omap3630: nand: fix device size to work in polled mode

zoom3 and 3630-sdp having the x16 nand device.
This patch configure gpmc as x16 and select the currect function in driver
for polled mode (without prefetch enable) transfer.

Signed-off-by: Sukumar Ghorai <s-ghorai@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

8 files changed, 21 insertions, 14 deletions

diff --git a/arch/arm/mach-omap2/board-3430sdp.c b/arch/arm/mach-omap2/board-3430sdp.c
index 31085883199e..4a37c70e38b0 100644
--- a/arch/arm/mach-omap2/board-3430sdp.c
+++ b/arch/arm/mach-omap2/board-3430sdp.c
@@ -812,7 +812,7 @@ static void __init omap_3430sdp_init(void)
         omap_serial_init();
         usb_musb_init(&musb_board_data);
         board_smc91x_init();
-        board_flash_init(sdp_flash_partitions, chip_sel_3430);
+        board_flash_init(sdp_flash_partitions, chip_sel_3430, 0);
         sdp3430_display_init();
         enable_board_wakeup_source();
         usb_ehci_init(&ehci_pdata);
diff --git a/arch/arm/mach-omap2/board-3630sdp.c b/arch/arm/mach-omap2/board-3630sdp.c
index 16538757291a..8d1c4358ecf9 100644
--- a/arch/arm/mach-omap2/board-3630sdp.c
+++ b/arch/arm/mach-omap2/board-3630sdp.c
@@ -11,6 +11,7 @@
 #include <linux/platform_device.h>
 #include <linux/input.h>
 #include <linux/gpio.h>
+#include <linux/mtd/nand.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -208,7 +209,7 @@ static void __init omap_sdp_init(void)
         zoom_peripherals_init();
         zoom_display_init();
         board_smc91x_init();
-        board_flash_init(sdp_flash_partitions, chip_sel_sdp);
+        board_flash_init(sdp_flash_partitions, chip_sel_sdp, NAND_BUSWIDTH_16);
         enable_board_wakeup_source();
         usb_ehci_init(&ehci_pdata);
 }
diff --git a/arch/arm/mach-omap2/board-flash.c b/arch/arm/mach-omap2/board-flash.c
index fd38c05bb47f..f6b72533c089 100644
--- a/arch/arm/mach-omap2/board-flash.c
+++ b/arch/arm/mach-omap2/board-flash.c
@@ -139,11 +139,13 @@ static struct omap_nand_platform_data board_nand_data = {
 };
 
 void
-__init board_nand_init(struct mtd_partition *nand_parts, u8 nr_parts, u8 cs)
+__init board_nand_init(struct mtd_partition *nand_parts,
+                        u8 nr_parts, u8 cs, int nand_type)
 {
         board_nand_data.cs              = cs;
         board_nand_data.parts           = nand_parts;
-        board_nand_data.nr_parts                = nr_parts;
+        board_nand_data.nr_parts        = nr_parts;
+        board_nand_data.devsize         = nand_type;
 
         gpmc_nand_init(&board_nand_data);
 }
@@ -194,7 +196,7 @@ unmap:
  * @return - void.
  */
 void board_flash_init(struct flash_partitions partition_info[],
-                                        char chip_sel_board[][GPMC_CS_NUM])
+                        char chip_sel_board[][GPMC_CS_NUM], int nand_type)
 {
         u8              cs = 0;
         u8              norcs = GPMC_CS_NUM + 1;
@@ -250,5 +252,5 @@ void board_flash_init(struct flash_partitions partition_info[],
                                 "in GPMC\n");
         else
                 board_nand_init(partition_info[2].parts,
-                                partition_info[2].nr_parts, nandcs);
+                        partition_info[2].nr_parts, nandcs, nand_type);
 }
diff --git a/arch/arm/mach-omap2/board-flash.h b/arch/arm/mach-omap2/board-flash.h
index 69befe00dd2f..c240a3f8d163 100644
--- a/arch/arm/mach-omap2/board-flash.h
+++ b/arch/arm/mach-omap2/board-flash.h
@@ -25,6 +25,6 @@ struct flash_partitions {
 };
 
 extern void board_flash_init(struct flash_partitions [],
-                                char chip_sel[][GPMC_CS_NUM]);
+                                char chip_sel[][GPMC_CS_NUM], int nand_type);
 extern void board_nand_init(struct mtd_partition *nand_parts,
-                                        u8 nr_parts, u8 cs);
+                                        u8 nr_parts, u8 cs, int nand_type);
diff --git a/arch/arm/mach-omap2/board-ldp.c b/arch/arm/mach-omap2/board-ldp.c
index d8eb2cb7cbc7..a3fae5697a72 100644
--- a/arch/arm/mach-omap2/board-ldp.c
+++ b/arch/arm/mach-omap2/board-ldp.c
@@ -433,7 +433,7 @@ static void __init omap_ldp_init(void)
         omap_serial_init();
         usb_musb_init(&musb_board_data);
         board_nand_init(ldp_nand_partitions,
-                ARRAY_SIZE(ldp_nand_partitions), ZOOM_NAND_CS);
+                ARRAY_SIZE(ldp_nand_partitions), ZOOM_NAND_CS, 0);
 
         omap2_hsmmc_init(mmc);
         /* link regulators to MMC adapters */
diff --git a/arch/arm/mach-omap2/board-zoom.c b/arch/arm/mach-omap2/board-zoom.c
index 85d4170f30ab..7e3f1595d77b 100644
--- a/arch/arm/mach-omap2/board-zoom.c
+++ b/arch/arm/mach-omap2/board-zoom.c
@@ -16,6 +16,7 @@
 #include <linux/input.h>
 #include <linux/gpio.h>
 #include <linux/i2c/twl.h>
+#include <linux/mtd/nand.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -124,8 +125,8 @@ static void __init omap_zoom_init(void)
                 usb_ehci_init(&ehci_pdata);
         }
 
-        board_nand_init(zoom_nand_partitions,
-                        ARRAY_SIZE(zoom_nand_partitions), ZOOM_NAND_CS);
+        board_nand_init(zoom_nand_partitions, ARRAY_SIZE(zoom_nand_partitions),
+                                                ZOOM_NAND_CS, NAND_BUSWIDTH_16);
         zoom_debugboard_init();
         zoom_peripherals_init();
         zoom_display_init();
diff --git a/arch/arm/mach-omap2/gpmc-nand.c b/arch/arm/mach-omap2/gpmc-nand.c
index 2bb29c160702..c1791d08ae56 100644
--- a/arch/arm/mach-omap2/gpmc-nand.c
+++ b/arch/arm/mach-omap2/gpmc-nand.c
@@ -12,6 +12,7 @@
 #include <linux/kernel.h>
 #include <linux/platform_device.h>
 #include <linux/io.h>
+#include <linux/mtd/nand.h>
 
 #include <asm/mach/flash.h>
 
@@ -69,8 +70,10 @@ static int omap2_nand_gpmc_retime(void)
         t.wr_cycle  = gpmc_round_ns_to_ticks(gpmc_nand_data->gpmc_t->wr_cycle);
 
         /* Configure GPMC */
-        gpmc_cs_configure(gpmc_nand_data->cs,
-                                GPMC_CONFIG_DEV_SIZE, gpmc_nand_data->devsize);
+        if (gpmc_nand_data->devsize == NAND_BUSWIDTH_16)
+                gpmc_cs_configure(gpmc_nand_data->cs, GPMC_CONFIG_DEV_SIZE, 1);
+        else
+                gpmc_cs_configure(gpmc_nand_data->cs, GPMC_CONFIG_DEV_SIZE, 0);
         gpmc_cs_configure(gpmc_nand_data->cs,
                         GPMC_CONFIG_DEV_TYPE, GPMC_DEVICETYPE_NAND);
         err = gpmc_cs_set_timings(gpmc_nand_data->cs, &t);
diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
index 15682ec8530e..7c04cd6fb7aa 100644
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c
@@ -804,7 +804,7 @@ static int __devinit omap_nand_probe(struct platform_device *pdev)
         info->mtd.name          = dev_name(&pdev->dev);
         info->mtd.owner         = THIS_MODULE;
 
-        info->nand.options      |= pdata->devsize ? NAND_BUSWIDTH_16 : 0;
+        info->nand.options      = pdata->devsize;
         info->nand.options      |= NAND_SKIP_BBTSCAN;
 
         /* NAND write protect off */