[U-Boot-Users] How to add new flash support in Uboot code

[U-Boot-Users] How to add new flash support in Uboot code

[harsh poshtiwala]

Hi ,

We are to use 512 MB Spansion NOR flash (Uniform Sector) on ARM926-EJS
processor..

Part number S29GL512P

http://www.spansion.com/products/S29GL512P.html

I have checked uboot source code(1.1.6) it doesn't support  this part.

How can i make uboot functional for this part ?

Do i need to modify any code in uboot ? if yes where should i make
those changes ?


I would appreciate your pointers on this
-- 
Thanks & Regards
Harsh

[U-Boot-Users] How to add new flash support in Uboot code

[Andrew Dyer]

On 5/1/07, harsh poshtiwala <hiharsh@gmail.com> wrote:
> Hi ,
>
> We are to use 512 MB Spansion NOR flash (Uniform Sector) on ARM926-EJS
> processor..
>
> Part number S29GL512P
>
> http://www.spansion.com/products/S29GL512P.html
>
> I have checked uboot source code(1.1.6) it doesn't support  this part.
>
> How can i make uboot functional for this part ?

Use the CFI flash support.  We use the following for S29GL128N in our
board config file.
you might have to tweak the values, but it should 'just work'.

/*
 * Flash Controller settings
 */
#define CFG_FLASH_CFI                   1
#define CFG_FLASH_CFI_DRIVER            1
#define CFG_FLASH_CFI_AMD_RESET
#define CFG_FLASH_USE_BUFFER_WRITE      1
#define CFG_ENV_SECT_SIZE               0x00020000
#define CFG_MAX_FLASH_BANKS             1
#define CFG_MAX_FLASH_SECT              256
#define CFG_FLASH_BASE                  0x10000000


-- 
Hardware, n.:
        The parts of a computer system that can be kicked.

[U-Boot-Users] How to add new flash support in Uboot code

[Tolunay Orkun]

harsh poshtiwala wrote:
> Hi ,
>
> We are to use 512 MB Spansion NOR flash (Uniform Sector) on ARM926-EJS
> processor..
>
> Part number S29GL512P
>
> http://www.spansion.com/products/S29GL512P.html
>
> I have checked uboot source code(1.1.6) it doesn't support  this part.
>
> How can i make uboot functional for this part ?
>
> Do i need to modify any code in uboot ? if yes where should i make
> those changes ?
>
>
> I would appreciate your pointers on this
>   

For CFI compatible chips please use the CFI driver. There is no need to 
add individual flash chips to the list.

Tolunay