[U-Boot] misc patches and cleanup

[Wolfgang Denk]

Dear Christopher Harvey,

In message <4DFA4764.9040402 at matrox.com> you wrote:
> 
> I recently dabbled in u-boot and kept track of a few points I found 
> confusing. I fixed them up to the best of my ability and created some 
> patches for consideration.

Please read http://www.denx.de/wiki/U-Boot/Patches

These patches must be submitted one by one, each in a separate
message.  Make sure to provide useful commit messages that explain
what you are doing and why, and make sure to include your
signed-off-by lines.

Thanks.

Best regards,

Wolfgang Denk

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