[U-Boot] Does U-boot supports Spansion S29GL512P NOR Flash?

[prakash bedge <prakash.bedge@gmail.com>]

Hi Stefan,

>> Does it mean I have to CFI_MTD ot common CFI_DRIVER will works?
I was asking that do I also need to add below settings in my board config
file.

/*
 * Dynamic MTD partition support
 */
#define CONFIG_CMD_MTDPARTS
#define CONFIG_MTD_DEVICE  /* needed for mtdparts commands */
#define CONFIG_FLASH_CFI_MTD
#define MTDIDS_DEFAULT  "nor0=fc000000.flash"
>And you need to configure your access timing for the chip select to the NOR
Chip correctly of course.
In which source file I can see present access timings for the chip select.
In which file I need to do these changes?

I tried with the below setting but I am getting the same error as flash not
found. So I am little bit concerned.
Please tell which boards supports the S29GL512P NOR flash, so that I can
check for reference.


Regards,
Prakash

On Fri, Apr 9, 2010 at 1:05 PM, Stefan Roese <sr@denx.de> wrote:

> Hi Prakash,
>
> On Friday 09 April 2010 09:22:21 prakash bedge wrote:
> > Thanks for details. But I didn't get it clearly.
> >
> > Does it mean I have to CFI_MTD ot common CFI_DRIVER will works?
>
> I don't understand this question.
>
> > Which c source file I need to check the support for this chip?
> >
> > I am using below settings.
> > *-----------------------------------------------------------------------
> >  * FLASH related
> >
>  *----------------------------------------------------------------------*/
> > #define CONFIG_SYS_FLASH_CFI
> > #define CONFIG_FLASH_CFI_DRIVER
> > #define CONFIG_SYS_FLASH_EMPTY_INFO  /* print 'E' for empty sector on
> > flinfo */
> >
> > #define CONFIG_SYS_FLASH_BANKS_LIST    {CONFIG_SYS_FLASH_BASE}
> > #define CONFIG_SYS_MAX_FLASH_BANKS     1      /* number of banks     */
> > #define CONFIG_SYS_MAX_FLASH_SECT 512      /* sectors per device   */
> > #define CONFIG_FLASH_SHOW_PROGRESS  1
> >
> > #define CONFIG_SYS_FLASH_ERASE_TOUT 220000 /* Timeout for Flash Erase (in
> > ms) */
> > #define CONFIG_SYS_FLASH_WRITE_TOUT 100 /* Timeout for Flash Write (in
> > ms) */
> >
> > #define CONFIG_ENV_SECT_SIZE 0x20000 /* size of one complete sector */
> > #define CONFIG_ENV_ADDR  (CONFIG_SYS_MONITOR_BASE-CONFIG_ENV_SECT_SIZE)
> > #define CONFIG_ENV_SIZE  0x4000 /* Total Size of Environment Sector */
>
> This looks good. With these defines the CFI driver should work. You might
> want
> to add CONFIG_SYS_FLASH_USE_BUFFER_WRITE for write speedup. And you need to
> configure your access timing for the chip select to the NOR Chip correctly
> of
> course.
>
> Cheers,
> Stefan
>
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