Dear santosh,

In message CAFcFeQJwzz=RHiSpm6FCMLoFmwjXNkDsqmjchfwO9EpmeOSrVw@mail.gmail.com you wrote:

Currently our production device has uboot 1.1.2 and Linux kernel 2.6.10.

We are planning to upgrade Linux kernel to 2.6.18 without upgrading uboot version.

Can you please let us know incompatibility issues if any?

U-Boot v1.1.2 is more than 9 years old, and even Linux v2.6.18 is nearly 8 years old - so all the versions you list here (including your "new" Linux version) are so totally antiquated that those engineers who still might remember have long been pensioned off ;-)

In your specific case I would not expect any serious incompatibili- ties, but don't hold your breath.

Best regards,

Wolfgang Denk