Where can I get manual of `mkimage' tool ?

[Josh Boyer]

On Sat, 2005-08-06 at 12:13 +0800, hegs wrote:
>  I use `mkimage' tool to  build U-Boot image, but donot known how to use 
> "mkimage" ? 
> 
>   who can help me ?

There is example usage in the README file of u-boot.

josh