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authorSukumar Ghorai <s-ghorai@ti.com>2011-01-28 13:12:03 +0300
committerTony Lindgren <tony@atomide.com>2011-02-18 02:32:52 +0300
commitd5ce2b6592c49935462cba7317fa67fe8ee474ec (patch)
tree5dac64a2ee28e08bd730efa2bb28d3f32e12fbca
parentdf7ffd317d36d36095c26bb57b3dd405274048e5 (diff)
downloadlinux-d5ce2b6592c49935462cba7317fa67fe8ee474ec.tar.xz
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>
-rw-r--r--arch/arm/mach-omap2/board-3430sdp.c2
-rw-r--r--arch/arm/mach-omap2/board-3630sdp.c3
-rw-r--r--arch/arm/mach-omap2/board-flash.c10
-rw-r--r--arch/arm/mach-omap2/board-flash.h4
-rw-r--r--arch/arm/mach-omap2/board-ldp.c2
-rw-r--r--arch/arm/mach-omap2/board-zoom.c5
-rw-r--r--arch/arm/mach-omap2/gpmc-nand.c7
-rw-r--r--drivers/mtd/nand/omap2.c2
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 */