[U-Boot] Help command broken on AT91SAM9G10-EK

[Tom <Tom.Rix@windriver.com>]

Justin Waters wrote:
> It looks like the "help" command is broken on the AT91SAM9G10-EK on
> 2009.11-rc1.  I get the following message any time I try to run it:
> 
> Unknown command 'help' - try 'help'
> 
> I've bisected the issue, and it looks like it started with the addition
> of the "editenv" command (commit
> 246c69225c7b962d5c93e92282b78ca9fc5fefee).  
> 
> After some further digging, I found some weirdness with the help command
> beginning with the lead-up work to the editenv commit. Strange
> characters where being printed to the console whenever the help command
> was run.  This issue started with commit
> ecc5500ee487170d8af6ff893fd1e0082380a01a, readline(): Add ability to
> modify a string buffer.
> 
> I've also tested the AT91SAM9263-EK, and everything looks great.  I
> believe the difference is related to the fact that the 9G10 does not use
> hush, while the 9263 does. Indeed, if you look at the main loop,
> non-hush systems use "readline" (which is indirectly modified by the
> aforementioned commits), while hush systems do not.
> 
> I'm not really sure what would be the best way to fix this.  Any ideas?
> 

What is the impact of just reverting the commits ?
Tom

> -Justin Waters
> 
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