forge/linux-pinenote
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

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

Browse source 
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>
This commit is contained in:
Sukumar Ghorai 2011-01-28 15:42:03 +05:30 • committed by Tony Lindgren
commit d5ce2b6592
8 changed files with 21 additions and 14 deletions
Download patch file Download diff file Expand all files Collapse all files

2
arch/arm/mach-omap2/board-3430sdp.c
View file

@ -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);

3
arch/arm/mach-omap2/board-3630sdp.c
View file

@ -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);
}

10
arch/arm/mach-omap2/board-flash.c
View file

@ -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);
}

4
arch/arm/mach-omap2/board-flash.h
View file

@ -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);

2
arch/arm/mach-omap2/board-ldp.c
View file

@ -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 */

5
arch/arm/mach-omap2/board-zoom.c
View file

@ -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();

7
arch/arm/mach-omap2/gpmc-nand.c
View file

@ -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);

2
drivers/mtd/nand/omap2.c
View file

@ -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 */