[PATCH 2/7] omap3: nand: configurable transfer type per board
Tony Lindgren
tony at atomide.com
Fri Dec 17 19:08:46 EST 2010
* Sukumar Ghorai <s-ghorai at ti.com> [101126 07:25]:
> nand transfer type (sDMA, Polled, prefetch) can be select from board file,
> enabling all transfer type in driver, by default.
>
> this helps in multi-omap build and to select different transfer type for
> different board.
>
> Signed-off-by: Sukumar Ghorai <s-ghorai at ti.com>
> ---
> arch/arm/plat-omap/include/plat/nand.h | 7 +++
> drivers/mtd/nand/Kconfig | 17 ------
> drivers/mtd/nand/omap2.c | 92 +++++++++++--------------------
> 3 files changed, 40 insertions(+), 76 deletions(-)
>
> diff --git a/arch/arm/plat-omap/include/plat/nand.h b/arch/arm/plat-omap/include/plat/nand.h
> index 6562cd0..78c0bdb 100644
> --- a/arch/arm/plat-omap/include/plat/nand.h
> +++ b/arch/arm/plat-omap/include/plat/nand.h
> @@ -10,6 +10,12 @@
>
> #include <linux/mtd/partitions.h>
>
> +enum nand_io {
> + NAND_OMAP_PREFETCH_POLLED = 0, /* prefetch polled mode, default */
> + NAND_OMAP_POLLED, /* polled mode, without prefetch */
> + NAND_OMAP_PREFETCH_DMA /* prefetch enabled sDMA mode */
> +};
> +
> struct omap_nand_platform_data {
> unsigned int options;
> int cs;
> @@ -20,6 +26,7 @@ struct omap_nand_platform_data {
> int (*nand_setup)(void);
> int (*dev_ready)(struct omap_nand_platform_data *);
> int dma_channel;
> + enum nand_io xfer_type;
> unsigned long phys_base;
> int devsize;
> };
So maybe the devsize in patch 1/7 should be handled with this too?
Regards,
Tony
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