Hi Jerry,

On Tuesday 27 January 2009, Jerry Zhang wrote:

I am porting u-boot to my board. I found it is difficult for me to write the flash driver ( flash.c) of SST39VF1601 by myself. Has anyone ever written this driver? Would you please give me a guide?

Sure this device has been supported many times (e.g. board/esd/common/flash.c). But I suggest to support it now via the legacy infrastructure of the common CFI flash driver. Take a look at the board hcu4 for example:

/* Use common CFI driver */ #define CONFIG_SYS_FLASH_CFI #define CONFIG_FLASH_CFI_DRIVER /* board provides its own flash_init code */ #define CONFIG_FLASH_CFI_LEGACY 1 ...

You will need to add a definition for the 39VF1601 to drivers/mtd/jedec_flash.c though but this shouldn't be too hard.

Best regards, Stefan

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