* vimal singh [080916 14:53]:
> Following patch taken over the omapzoom.org tree adds
> prefetch (MPU and DMA) support to the OMAP2/3 nand driver.
> The prefetch supprot also adds the support for 8-bit
> devices.
> David Brownell's patch (omap2_nand updates) changes
> have been included in this pa
Hi,
Do you have any plans to use the prefetch engine's feature to
synchronise to ready/busy pin? (GPMC_PREFETCH_CONFIG1's SYNCHROMODE=1)
That way we could avoid the busy-wait for the flash to be ready.
- Juha
On Thu, Nov 6, 2008 at 5:57 AM, vimal singh <[EMAIL PROTECTED]> wrote:
> This patch ad
This patch adds prefetch support to access nand flash in both mpu and dma mode.
This patch also adds 8-bit nand support (omap_read/write_buf8).
Prefetch can be used for both 8- and 16-bit devices.
Signed-off-by: Vimal Singh
---
API's to access 8- and 16-bit NAND devices (omap_read/wirte_buf8/16)c
Hi,
> On Monday 08 September 2008, Kamat, Nishant wrote:
> > +config MTD_NAND_OMAP_PREFETCH
> > + bool "GPMC prefetch support for NAND Flash device"
> > + depends on MTD_NAND && MTD_NAND_OMAP2
> > + default n
> > + help
> > +The NAND device can be accessed for Read/
Hi,
> On Mon, Sep 08, 2008 at 01:03:35PM -0500, [EMAIL PROTECTED] wrote:
> > +#ifdef CONFIG_MTD_NAND_OMAP_PREFETCH
> > + static int use_prefetch = 1;
> > +
> > + /* "modprobe ... use_prefetch=0" etc */
> > + module_param(use_prefetch, bool, 0);
> > + MODULE_PARM_DESC(use_prefetch,
On Monday 08 September 2008, Kamat, Nishant wrote:
> +config MTD_NAND_OMAP_PREFETCH
> + bool "GPMC prefetch support for NAND Flash device"
> + depends on MTD_NAND && MTD_NAND_OMAP2
> + default n
> + help
> + The NAND device can be accessed for Read/Write using GPMC PR
On Monday 08 September 2008, Russell King - ARM Linux wrote:
> > - while (len--)
> > - *p++ = cpu_to_le16(readw(info->nand.IO_ADDR_R));
>
> This driver needs work (see endianness explaination below.)
Already done, but this patch doesn't build on that patch...
--
To unsubscribe f
On Monday 08 September 2008, Kamat, Nishant wrote:
> - while (len--)
> - *p++ = cpu_to_le16(readw(info->nand.IO_ADDR_R));
> + if (use_prefetch) {
Em, clearly this does not go on top of the NAND patch I
sent recently ... please do that instead, so we don't
need to repeat t
On Mon, Sep 08, 2008 at 01:03:35PM -0500, [EMAIL PROTECTED] wrote:
> +#ifdef CONFIG_MTD_NAND_OMAP_PREFETCH
> + static int use_prefetch = 1;
> +
> + /* "modprobe ... use_prefetch=0" etc */
> + module_param(use_prefetch, bool, 0);
> + MODULE_PARM_DESC(use_prefetch, "enable/disable use
From: Vimal Singh <[EMAIL PROTECTED]>
Following patch taken over the omapzoom.org tree adds
prefetch and DMA support to the OMAP2/3 nand driver.
Signed-off-by: Vimal Singh <[EMAIL PROTECTED]>
Signed-off-by: Nishant Kamat <[EMAIL PROTECTED]>
---
arch/arm/mach-omap2/gpmc.c | 95 +
From: Vimal Singh <[EMAIL PROTECTED]>
Following patch taken over the omapzoom.org tree adds
prefetch and DMA support to the OMAP2/3 nand driver.
Signed-off-by: Vimal Singh <[EMAIL PROTECTED]>
Signed-off-by: Nishant Kamat <[EMAIL PROTECTED]>
---
arch/arm/mach-omap2/gpmc.c | 95
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