Dear Stephen,
In message 20111108194433.7C9A013BE0C5@gemini.denx.de I wrote:
Are you willing to entertain extending bootm to recognize a third image format if this makes the patches less invasive, and/or leads to more maintainable code?
I have to admit that I don't like the idea, but I will not argue over hard facts. But please keep in mind that bootz support shall be a configuration option, that can be selected or omittet at build time. My feeling is that this would require quite a number of new #ifdef's if you try to add it into the existing code.
Thinking about this again I wonder if this is really what is needed. Why do we need a third image format?
What would happen if we just create a new image type IH_TYPE_ZIMAGE?
Then you can use plain "bootm", and probably most of the existing code. A few tests may need to be extended by some "|| (type == IH_TYPE_ZIMAGE)", and in the end you can just skip the parts that deal with loading and starting.
For the sake of consistency, such images should be built with IH_COMP_NONE, then.
What do you think?
Best regards,
Wolfgang Denk