Re: [U-Boot] [PATCH] ADS5121 NAND driver

Dear John Rigby,

In message 1225313050-31063-1-git-send-email-jrigby@freescale.com you wrote:

ADS5121 rev4 / MPC5121e rev2 only

Only tested with: 2K page size 8 bit device width

This controller treats 2K pages as 4 512 byte pages and the hw ecc is over the combined 512 byte main area and the first 7 bytes of the spare area.

The hw ecc is stored in the last 9 bytes of the spare area.

This all means the the spare area can not be written separately from the main. This means unmodified JFFS2 will not work.

Hm... then what exactly is this good for? If we cannot use it with the normal Linux code I see little use cases for such a driver?

Best regards,

Wolfgang Denk